WO2021035933A1 - 电机及风机 - Google Patents
电机及风机 Download PDFInfo
- Publication number
- WO2021035933A1 WO2021035933A1 PCT/CN2019/114156 CN2019114156W WO2021035933A1 WO 2021035933 A1 WO2021035933 A1 WO 2021035933A1 CN 2019114156 W CN2019114156 W CN 2019114156W WO 2021035933 A1 WO2021035933 A1 WO 2021035933A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- rotating shaft
- assembly
- motor
- axial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/182—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to stators axially facing the rotor, i.e. with axial or conical air gap
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
- H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2798—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets where both axial sides of the stator face a rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/163—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor
Definitions
- This application relates to the field of fans, and in particular, to a motor and a fan including the motor.
- fans have also been put forward with more functional requirements, such as two coaxial fans, which are used in conjunction with the corresponding speed and steering.
- two technologies that are mostly used: one is that the two motors extend back to the shaft, and the two shafts are connected to two fans respectively, which is costly and takes up a lot of space in the axial direction; the other is to use a single-axis motor and The gear mechanism is matched to realize the shaft extension at both ends, and the fan connected with the two shafts can be rotated with a fixed ratio of speed and steering rotation.
- the diversification of its functionality is limited, and it is difficult to manufacture and install.
- an object of the present application is to provide a motor.
- Another object of the present application is to provide a fan including the above-mentioned motor.
- a motor including: a stator assembly, including a stator core and two sets of mutually independent windings, a hollow channel is provided in the radial middle of the stator core, The two axial ends of the stator core are provided with stator teeth protruding to both axial sides of the stator core, and the two sets of windings are respectively wound on the two sets of the stator teeth; two mutually independent rotor assemblies, The back is coaxially arranged on both sides of the stator assembly in the axial direction, and forms an axial air gap with the stator assembly, and the two rotor assemblies are configured to rotate independently of each other; and two independent rotating shaft assemblies , Are respectively coaxially connected with the two rotor assemblies, and protrude in the same direction away from the stator core along the axial direction of the motor, and a part of the two rotating shaft assemblies are both placed in the hollow channel Inside.
- the motor provided by the technical solution of the first aspect of the present application utilizes the cooperation of a stator assembly with two mutually independent rotor assemblies and two mutually independent rotating shaft assemblies to realize the dual power independent output of one motor and can drive two fans They rotate independently at their respective speeds and directions, without interfering with each other.
- the two fans can be rotated at any speed and any rotation, which is practical and functional, which significantly improves the diversification of the fan’s functionality and eliminates the gear mechanism. Reduce the difficulty of product manufacturing and installation.
- the motor includes a stator assembly, two mutually independent rotor assemblies and two mutually independent rotating shaft assemblies.
- the stator assembly includes a stator core and two sets of independent windings; the two axial ends of the stator core are provided with stator teeth, and the two sets of stator teeth protrude toward both sides along the axial direction of the stator core for winding the two sets of windings.
- a hollow channel is provided in the radial middle of the stator core, which provides a favorable axial installation space for the installation of the rotating shaft assembly, so that a part of the two rotating shaft assemblies can be inserted into the hollow channel Inside, thereby further shortening the axial size of the motor.
- the two rotor assemblies are coaxially arranged on the two axial sides of the stator assembly facing away from each other, facing the two sets of windings respectively, and form an axial air gap with the stator assembly to ensure that the two rotor assemblies do not interfere with each other and realize independent rotation of each other.
- the two rotating shaft assemblies are independent of each other, and are respectively coaxially connected with the corresponding rotor assembly, and respectively rotate synchronously with the corresponding rotor assembly.
- the two rotating shaft components protrude toward the same side of the motor axis, so that one end of the motor can output two powers that do not interfere with each other.
- the functions of the motors are independent of each other, so it has the obvious advantages of compact structure, strong practical functionality, convenient installation, small axial size and low manufacturing cost.
- the rotating shaft of one of the rotating shaft components is a hollow shaft
- the rotating shaft of the other rotating shaft component extends through the hollow shaft and is suitable for rotating relative to the hollow shaft
- the rotating shaft assembly includes a rotating shaft, and the rotating shaft of one rotating shaft assembly is a hollow shaft, and the rotating shaft of the other rotating shaft assembly can extend through the hollow shaft, thereby realizing the same direction protrusion of the two rotating shaft assemblies, so that the axial end of the motor can be Connect two fans or other components at the same time.
- the rotating shaft of the other rotating shaft assembly is a solid shaft, which is beneficial to improve the strength of the rotating shaft.
- the rotating shaft of another rotating shaft assembly can also be a hollow shaft.
- another shaft of the shaft assembly includes a connecting section and an extension section connected to the connecting section, the outer diameter of the connecting section is equal to the outer diameter of the hollow shaft, and the connecting section is The hollow shaft is arranged along the axial direction of the hollow channel, and the extension section extends through the hollow shaft.
- the shaft of the other shaft assembly includes a connecting section and an extension section.
- the outer diameter of the connecting section is equal to the outer diameter of the hollow shaft, and the connecting section and the hollow shaft are arranged along the axis of the hollow channel. Then the two shafts are assembled in the hollow channel.
- the outer contour of the inner part is kept flush, making the structure of the product more regular, easy to process and shape, and easy to assemble; at the same time, the part (that is, the connecting section) of the rotating shaft connected to the rotor assembly is relatively thick, which improves the strength of the rotating shaft. It is helpful to improve the reliability of the rotating shaft; it is also convenient for the two rotating shafts to be supported by supporting structures such as bearings of the same type, so as to improve the reliability and stability of the motor.
- the motor further includes: a shaft sleeve arranged in the hollow channel, and a part of the two rotating shaft assemblies is inserted into the shaft sleeve.
- a shaft sleeve is set in the hollow channel, and one end of the two rotating shaft components is inserted into the shaft sleeve.
- the shaft sleeve can play a good role in limiting the two rotating shaft components, ensuring the gap between the two rotating shaft components and the stator component. It does not interfere with each other, and reduces the probability of shaking, tilting, and shifting of the rotating shaft assembly, thereby improving the coaxiality of the two rotating shaft assemblies, which is beneficial to improve the reliability of the motor, and also helps to improve the assembly of the rotating shaft assembly Accuracy, installation is more convenient.
- the rotating shafts of the two rotating shaft assemblies can be nested, one end of the rotating shaft assembly is inserted into the shaft sleeve, and the other end protrudes toward the axial side of the motor; one end of the other rotating shaft assembly is inserted into the shaft sleeve Inside, the other end passes through the above-mentioned rotating shaft assembly and protrudes toward the same axial side of the motor, and the two rotating shaft assemblies are respectively coaxially connected with the two rotor assemblies, and respectively rotate synchronously with the corresponding rotor assemblies.
- the rotating shaft assembly includes a rotating shaft and a rotating support part, the rotating support part is accommodated in the shaft sleeve and located between the shaft sleeve and the rotating shaft, and is used to support the
- the rotating shaft is adapted to rotate relative to the shaft sleeve, and the rotating shaft is coaxially connected with the rotor assembly.
- the rotating shaft assembly includes a rotating shaft and a rotating support part.
- the rotating support part is contained in the shaft sleeve and is located between the shaft sleeve and the rotating shaft to ensure the stability of the position of the rotating shaft and the stability during the rotation; the rotating shaft and the rotor assembly are coaxially connected to achieve The power output function of the motor has been improved.
- the rotation support portion includes at least one bearing.
- the rotating support portion includes at least one bearing, and the use of the bearing to support the rotating shaft can significantly improve the reliability of the rotating shaft.
- the rotation support part is not limited to the bearing, and may also have other structures.
- multiple needle rollers are arranged in the circumferential direction on the inner wall of the shaft sleeve, and multiple needle rollers are used to support the rotating shaft; or, multiple connecting rings are arranged on the inner side wall of the shaft sleeve in the axial direction, and the inner side wall of the connecting ring is smooth Surface, using multiple connecting rings to support the rotating shaft.
- the number of the bearings is multiple, and the multiple bearings are distributed on the same axial side of the rotor assembly at intervals along the length direction of the rotating shaft.
- a plurality of bearings are arranged at intervals along the length of the rotating shaft, which can support multiple parts of the rotating shaft, which is beneficial to improve the supporting reliability of the rotating support part to the rotating shaft, thereby further improving the reliability of the rotating shaft assembly; and the multiple bearings are located in the corresponding position.
- the rotor assembly is on the same axial side, so that multiple bearings can be completely contained in the shaft sleeve. There is no matching relationship between multiple bearings and the end caps at both ends of the motor. Therefore, it is only necessary to concentrate on ensuring the processing accuracy of the shaft sleeve. Ensure the processing accuracy of the end cover, thereby helping to reduce the manufacturing cost. Further, the number of bearings is two, and the two bearings can effectively improve the reliability of the support for the rotating shaft assembly, are also convenient to be accommodated in the shaft sleeve, reduce the number of parts, and save production costs.
- the outer side wall of the sleeve is matched with the hollow channel
- the inner side wall of the sleeve is matched with the bearing
- the sleeve and the hollow channel are matched by a concave-convex structure to The shaft sleeve is restricted from moving axially relative to the stator assembly.
- the outer side wall of the sleeve is matched with the hollow passage, and the inner side wall of the sleeve is matched with the bearing to ensure the stability of the position of the sleeve; and the sleeve and the hollow passage are matched with a concave-convex structure to prevent the sleeve from moving in the axial direction relative to the stator assembly , Thereby further improving the stability of the sleeve.
- the concave-convex structure includes a flange provided on the outer side wall of the shaft sleeve and a groove provided on the wall surface of the hollow channel; wherein the flange is also provided with at least one notch .
- a flange is set on the outer side wall of the sleeve, and a groove is set on the wall of the hollow channel.
- the flange is embedded in the groove to realize the assembly and positioning of the sleeve and restrict the sleeve along the axis of the stator assembly.
- the flange is also provided with at least one notch, and the notch can be matched with the concave and convex of the later injection molded casing, so as to prevent the shaft sleeve from rotating circumferentially relative to the stator assembly, thereby improving the stability of the shaft sleeve.
- the number of notches is multiple, and the multiple notches are distributed at intervals along the circumferential direction of the flange.
- a partition is provided on the inner side wall of the shaft sleeve, and the partition is used to separate the two rotation support parts.
- a partition is provided on the inner side wall of the shaft sleeve.
- the partition can separate the rotation support parts of the two rotating shaft assemblies, thereby effectively preventing the two rotating shaft assemblies from interfering with each other, and further improving the reliability of the use of the two rotating shaft assemblies.
- the partition is a groove for installing an annular retaining ring or a baffle; the partition may also be an annular protrusion or an integrally formed partition.
- the motor further includes: two shaft sleeve packaging covers, fixedly connected to the axial ports of the shaft sleeve, for restricting the axial movement of the rotating shaft assembly.
- the sleeve encapsulation cover at the two axial ports of the sleeve can prevent the rotation support part located in the sleeve from moving axially, thereby limiting the axial movement of the two rotating shaft components, and further improving the motor performance. Reliability in use.
- the sleeve encapsulation cover can be fixedly connected to the sleeve by fasteners such as screws.
- the rotating shaft assembly includes a rotating shaft and a rotating support portion, the rotating support portion is at least partially accommodated in the hollow channel and sleeved on the rotating shaft for supporting the rotating shaft and making the
- the rotating shaft is adapted to rotate relative to the stator core, and the two rotating shafts are respectively coaxially connected with the two rotor assemblies, and protrude in the same direction away from the stator core along the axial direction of the motor .
- the rotating shaft assembly includes a rotating shaft and a rotating support part.
- the rotating support part is partially or fully accommodated in the hollow channel and sleeved on the rotating shaft to ensure the stability of the position of the rotating shaft and the stability during rotation; the rotating shaft is coaxially connected with the rotor assembly, The power output function of the motor is realized.
- the rotation support portion includes at least one bearing.
- the rotating support portion includes at least one bearing, and the use of the bearing to support the rotating shaft can significantly improve the reliability of the rotating shaft.
- the rotation support part is not limited to the bearing, and may also have other structures.
- multiple needle rollers are arranged in the circumferential direction on the inner side wall of the hollow channel, and multiple needle rollers are used to support the rotating shaft; or, multiple connecting rings are arranged on the inner side wall of the hollow channel in the axial direction, and the inner side wall of the connecting ring is smooth Surface, using multiple connecting rings to support the rotating shaft.
- the number of the bearings is multiple, and the multiple bearings are distributed on both axial sides of the rotor assembly at intervals along the length direction of the rotating shaft.
- a plurality of bearings are arranged at intervals along the length of the rotating shaft, which can support multiple parts of the rotating shaft, which is beneficial to improve the supporting reliability of the rotating support part on the rotating shaft, thereby further improving the reliability of the rotating shaft assembly; and the multiple bearings are distributed in The two axial sides of the corresponding rotor assembly can dispersely support multiple parts of the rotating shaft, thereby improving the reliability of supporting the rotating shaft, and significantly reducing the risk of tilting the rotating shaft, thereby improving the reliability of the motor. Furthermore, the number of bearings is two, and the two bearings can effectively improve the reliability of the support for the rotating shaft assembly, and can also reduce the number of parts and save production costs.
- the motor further includes: two bearing caps, which are sleeved in the hollow channel and fixedly connected to the stator core, and the two bearing caps are arranged opposite to each other for supporting corresponding
- the shaft assembly is axially inward of the bearing.
- Two bearing covers are arranged in the hollow channel to support the axially inward bearings of the two rotating shaft assemblies (that is, the bearings relatively close to the inside of the motor). Since the two bearing covers are arranged opposite to each other, the two rotating support parts can be supported.
- the two rotating shaft components and the stator component do not interfere with each other, and the probability of shaking, tilting, and shifting of the rotating shaft component is reduced, which is beneficial to improve the reliability of the motor, and also It is beneficial to improve the assembly accuracy of the rotating shaft assembly, and the installation is more convenient; and the two bearing covers can act as a separator to separate the rotating support parts of the two rotating shaft assemblies, thereby effectively preventing the two rotating shaft assemblies from interfering with each other and further improving The reliability of the use of the two shaft components is improved.
- the bearing cover is adapted to the shape of the bearing, and the bearing is accommodated in the bearing cover and supported by the bearing cover.
- the bearing cover matches the form of the bearing, the axially inner bearings of the two rotating shaft assemblies can be sunk into the bearing cover, so as to obtain effective support and limit, and further improve the reliability of the motor.
- the open end of the bearing cover is provided with flanges extending radially outward.
- the open end of the bearing cover is provided with flanges, which extend radially outwards, which can be matched with the concave and convex of the later injection molded casing to play a certain limit function and prevent the bearing cover from moving axially relative to the stator core.
- At least one notch is provided on the flange.
- At least one notch is provided on the flange, and the notch can be matched with the concave and convex of the later injection molded casing to prevent the bearing cover from rotating circumferentially relative to the stator assembly, thereby improving the stability of the bearing cover.
- the number of the notches is multiple, and the multiple notches are distributed at intervals along the circumferential direction of the flanging.
- the motor further includes: a support bearing, which is coaxially arranged between the output end of the hollow shaft and the other rotating shaft.
- Adding a support bearing between the output end of the hollow shaft and the other rotating shaft can further improve the supporting rigidity of the two rotating shaft assemblies, thereby further improving the reliability of the motor.
- the two rotating shaft assemblies respectively protrude along the axial direction of the motor toward the same side of the axial direction of the motor.
- the two rotating shaft components respectively protrude toward the same side of the motor axis along the axis of the motor, so that both ends of the motor can output two powers, and the two powers do not interfere with each other, which enriches the functionality of the motor.
- the two rotating shaft assemblies can also protrude toward both sides of the motor axis along the axis of the motor, so that the two axial ends of the motor can output two torques.
- the stator core includes a stator yoke and a plurality of stator teeth arranged in a circumferential direction of the stator yoke, and the plurality of stator teeth and the stator yoke
- the stator core is assembled to form the stator core, and a plurality of the stator teeth protrude to both sides of the stator yoke in the axial direction to form two sets of the stator teeth, and the two sets of windings are respectively wound on the stator yoke On the stator teeth on both sides of the axial direction.
- stator core splits the stator core into a stator yoke and a plurality of stator teeth, which not only helps reduce the difficulty of processing the stator core, but also helps reduce the difficulty of winding the two sets of windings.
- stator yoke may be formed by laminating a plurality of stator punches
- stator teeth may also be formed by laminating a plurality of stator punches.
- stator core can also be an integrated structure.
- the radial middle of the stator yoke is provided with a through hole adapted to the shaft sleeve of the motor, and the through hole constitutes a part of the hollow channel of the stator core; and/or, so A radially outer side wall of the stator yoke portion is provided with a clamping slot, and a part of the stator tooth portion is embedded in the clamping slot, so that the stator tooth portion and the stator yoke portion are snap-fitted.
- stator teeth are arranged in the circumferential direction of the stator yoke, a certain hollow space is enclosed by the plurality of stator teeth. Therefore, a through hole is provided in the radial middle of the stator yoke.
- the hollow space forms a hollow channel, which can provide a favorable axial installation space for the rotating shaft assembly, thereby shortening the axial size of the motor.
- a slot is provided on the radially outer side wall of the stator yoke.
- the slot can be used to clamp the stator tooth on the stator yoke, so as to realize the assembly of the stator yoke and the stator tooth.
- the structure is simple, easy to process, and convenient. assembly.
- any one of the stator teeth includes at least one of the stator teeth, and the stator tooth includes a tooth body and a tooth body connected to an axial end of the tooth body and located on an axial direction of the stator yoke. On the side tooth surface, all tooth surfaces of any group of the stator teeth are located in the same plane and perpendicular to the axis of the stator yoke.
- Any stator tooth includes at least one stator tooth.
- the stator tooth includes a tooth body and a tooth surface.
- the tooth surface is connected to the axial end of the tooth body away from the stator yoke, and thus is located on the axial side of the stator yoke; any set of stators All tooth surfaces of the teeth are located in the same plane and perpendicular to the axis of the stator yoke, ensuring that an axial air gap can be formed with the rotor assembly on this side.
- the stator tooth portion includes two stator teeth, and a limiting step is provided on the tooth body of the stator tooth portion, and the limiting step abuts against the stator yoke for limiting The stator teeth move axially relative to the stator yoke.
- One stator tooth includes two stator teeth, and the tooth surfaces of the two stator teeth are respectively located on two axial sides of the stator yoke, and can form an axial air gap with the rotor components on both sides.
- one stator tooth part includes only one stator tooth, the number of stator tooth parts is reduced, and the assembly process is simplified.
- one stator tooth may also include only one stator tooth, and two opposite stator teeth are installed on one part of the stator core to form two stator teeth.
- the rotor assembly includes a rotor disk coaxially connected with the rotating shaft assembly and permanent magnets mounted on the rotor disk, and the rotor disk includes a disk body from the outside to the inside along its radial direction.
- the outside and the inside of the disc body connected to the outside of the disc body, wherein the outside of the disc body has a disc-shaped structure, and the inside of the disc body has a disc-shaped structure or a conical structure.
- the rotor assembly includes a rotor disc and a permanent magnet.
- the rotor disc serves as a permanent magnet mounting carrier and realizes the coaxial connection between the rotor assembly and the rotating shaft assembly; the permanent magnet is installed on the rotor disc to generate a magnetic field to interact with the stator assembly.
- the outer part of the rotor disc body is a disc-shaped structure, which is relatively regular in structure, which is convenient for processing and forming, and is also convenient for the arrangement of multiple permanent magnets;
- the inner part of the disc body is a disc-shaped structure or a conical structure, which is convenient to follow the specific structure of the product.
- Reasonably design the assembly structure of the rotor disc and the shaft assembly to provide a favorable space for the installation of other parts.
- the rotor disc is coaxially connected with the rotation shaft of the rotation shaft assembly; wherein the rotor disc and the rotation shaft of the rotation shaft assembly are an integral structure formed by injection molding or welding, or the rotor disc Threaded connection or interference fit with the rotating shaft.
- the rotating shaft assembly includes a rotating shaft.
- the rotor disc and the rotating shaft are coaxially connected and fixed together by injection molding or welding to form an integrated structure, or a fixed connection is achieved through threaded connection, interference assembly, etc., which effectively guarantees the rotating shaft and the rotor
- the connection reliability of the disc ensures the reliability of the synchronous rotation of the rotating shaft and the rotor assembly.
- the permanent magnets have a circular or fan-shaped pie-shaped structure, the number of the permanent magnets is multiple, and the multiple permanent magnets are evenly distributed in the circumferential direction of the rotor disk toward the stator yoke.
- the axial surface forms an axial magnetic flux; the N poles and S poles of the two adjacent permanent magnets are alternately arranged or arranged in a Halbach array.
- the permanent magnets have a circular or fan-shaped pie-shaped structure, which is convenient for arrangement and reduces the axial size of the motor.
- a number of permanent magnets are evenly distributed on the surface of the rotor disk facing the stator yoke along the circumferential direction of the rotor disk, so that the rotor Axial magnetic flux is formed between the assembly and the stator assembly.
- the N poles and S poles of two adjacent permanent magnets can be alternately arranged, or arranged in a Halbach array, which can be specifically adjusted according to product requirements.
- the motor further includes: an insulating frame mounted on the stator teeth; a mounting frame fixedly connected to the insulating frame; a plurality of pins inserted on the mounting frame, And the lead wires of the two sets of windings are fixedly connected to a plurality of the pins.
- the motor also includes an insulating frame, a mounting frame and a plurality of pins.
- the insulating frame is mounted on the stator teeth to ensure the safety and reliability of the windings mounted on the stator teeth;
- the mounting frame is fixedly connected to the insulating frame and is inserted with multiple pins.
- the lead wires of the two sets of windings are fixedly connected to the multiple pins, so that the emergence of the two sets of windings is led out to a fixed and stable conductive carrier.
- the mounting frame is an arc-shaped strip structure coaxial with the stator assembly, and the mounting frame and the plurality of pins are located on the radially outer side of the rotor assembly.
- the mounting frame is an arc-shaped strip structure coaxial with the stator assembly, and the mounting frame and multiple pins are located radially outside of the two rotor assemblies, so that the structure of the motor is relatively regular, and it is not easy to interfere with the internal magnetic field of the motor. It is convenient to connect with external circuits.
- the motor further includes: a casing, the casing is an injection molded body, and the insulating frame, the mounting frame, the plurality of pins, and the shaft sleeve of the motor are fixedly connected
- the outer diameter of the casing is larger than the maximum radial outer contour surface formed by the stator assembly, the insulating frame, the mounting frame, and the plurality of pins.
- the axial direction of the casing is Both end surfaces include an inner end surface and an outer end surface connected to the outer edge of the inner end surface.
- the outer end surface is located on the radially outer side of the inner end surface and at least partially protrudes from the inner end surface, so that the housing
- the axial end faces form a stepped structure with a high outer surface and a low inner end surface, wherein the two inner end surfaces are flush with the axial end surfaces of the stator iron core or do not exceed the axial end surfaces of the stator iron core.
- the motor also includes a casing.
- the casing is an injection molded body that covers the insulating frame, mounting frame and other structures, so that the insulating frame, mounting frame, multiple pins and shaft sleeves can be fixedly connected to form a whole, ensuring the stability of the motor;
- the outer diameter of the casing is larger than the maximum radial outer contour surface formed by the stator assembly, insulating frame, mounting frame and multiple pins, ensuring that these components are covered in the radial outer surface of the casing, thereby ensuring the appearance of the motor Integrity, regularity and insulation from the outside world.
- the axial end faces of the casing are not regular planes, but a stepped structure with high outside and low inside.
- the protruding part on the radial outer side is recorded as the outer end face, which is relatively small in size; the recessed part on the inner side Marked as the inner end face, the size is relatively large.
- the two inner end faces are flush with the axial end faces of the stator iron core or do not exceed the axial end faces of the stator iron core (that is, the two sets of tooth faces of the stator iron core), which facilitates more precise and effective control of the tooth surface and the permanent Axial air gap between magnets.
- the two outer end surfaces of the casing are respectively provided with circular bosses coaxial with the stator assembly.
- the two outer end faces of the casing are provided with two circular bosses, and the two circular bosses are coaxially connected with the stator assembly, which is convenient to cooperate with other structures to encapsulate the motor.
- the housing is provided with a stepped surface at one axial end close to the plurality of pins, and the plurality of pins penetrate the stepped surface and protrude from the stator assembly in the axial direction. ⁇ step surface.
- a stepped surface is provided at the axial end of the housing close to the plurality of pins, so that the plurality of pins penetrate the stepped surface and protrude from the stepped surface along the axial direction of the stator assembly, which can be used to connect or install the pins with other conductive parts Provide favorable space.
- the step surface can be arranged on the inner side wall of the circular boss, which further simplifies the structure of the casing.
- the motor further includes: two end encapsulation covers, which are coaxially fixedly mounted on the two axial ends of the casing, respectively, for encapsulating the motor, and are provided with the rotating shaft assembly.
- the protruding shaft hole is provided.
- the end encapsulation covers are installed on the axial ends of the casing to ensure the integrity of the motor and effectively protect the internal structure of the motor; and the end encapsulation covers are provided with shaft holes for the corresponding shaft extension To ensure that the power of the motor can be output.
- a step is formed between the outer wall surface of the circular boss and the outer wall surface of the casing, and the end encapsulation cover can be provided with a cover edge to fit the step, so that the outer contour of the motor is relatively regular.
- the edge portion of the end encapsulation cover is provided with an annular groove, and the circular bosses at the two outer end surfaces of the casing are embedded in the corresponding annular groove.
- the two outer end faces of the casing are provided with two circular bosses.
- the two circular bosses are coaxially connected with the stator assembly, and the edge of the end encapsulation cover is provided with an annular groove, and the circular boss is embedded In the annular groove, the stop fitting can be realized, and the end sealing cover can be assembled in place.
- the structure is simple and the assembly is convenient.
- the end encapsulation cover is provided for A bearing chamber accommodating the corresponding bearing axially outward of the rotating shaft assembly.
- Bearing chambers are provided on the two end encapsulation covers to support the axially outward bearings of the two rotating shaft assemblies (that is, the bearings relatively close to the outside of the motor), which can further support and limit the two rotating support parts , Thereby further improving the reliability of the use of the two rotating shaft assemblies.
- the bearing chamber is integrated on the end encapsulation cover, so that the end encapsulation cover also functions as a bearing cover, which reduces the number of components compared to the solution in which an additional bearing cover is provided and then fixed on the end encapsulation cover. , Simplifies the assembly process and reduces production costs.
- the middle part of the end encapsulation cover is first recessed to form a sinking platform, and the bottom wall of the sinking platform is then partially reversely protruded to form a boss, and the space defined by the boss is the bearing chamber.
- the inside of the disk body of the rotor disk corresponding to the end encapsulation cover is configured into a conical slope structure to fit the end encapsulation cover. In this way, the internal space of the hollow channel can be reasonably utilized, which is beneficial to further reduce the axial size of the motor.
- the motor further includes: an electric control board built in between the rotor assembly on either side of the motor and the end encapsulation cover.
- the arrangement of the electric control board is conducive to the realization of the automatic control of the motor; the electric control board is arranged on either side of the motor, and is located between the rotor assembly on that side and the end encapsulation cover, which not only ensures the stability of the electric control board, It is also convenient for the circuit output of the electric control board.
- the technical solution of the second aspect of the present application provides a fan, including: at least one motor according to any one of the technical solutions of the first aspect; two fans, respectively fixed to the two rotating shaft assemblies of the motor Connected, the two fans rotate coaxially and independently of each other.
- the fan provided by the technical solution of the second aspect of the present application includes the motor described in any one of the technical solutions of the first aspect, so it has compact structure, strong practical functionality, convenient installation, small axial size, low manufacturing cost, etc. Significant advantages.
- FIG. 1 is a schematic diagram of a partial structure of a motor according to some embodiments of the present application.
- Fig. 2 is a schematic diagram of an exploded structure of a motor according to some embodiments of the present application.
- Fig. 3 is a schematic structural diagram of a stator assembly according to some embodiments of the present application.
- FIG. 4 is a schematic diagram of a partial structure of a shaft sleeve according to some embodiments of the present application.
- Fig. 5 is a schematic diagram of a partial structure of a motor according to some embodiments of the present application.
- Fig. 6 is a schematic diagram of an exploded structure of a rotor according to some embodiments of the present application.
- Fig. 7 is a schematic structural diagram of a fan according to some embodiments of the present application.
- 3-shaft sleeve 31-outer side wall; 32-inner side wall; 33-flange; 34-notch; 35-groove;
- FIG. 8 is a schematic diagram of a partial structure of a motor according to some embodiments of the present application.
- FIG. 9 is a schematic diagram of an exploded structure of a motor according to some embodiments of the present application.
- Fig. 10 is a schematic structural diagram of a stator assembly according to some embodiments of the present application.
- Figure 11 is a partial structural diagram of a bearing cap according to some embodiments of the present application.
- FIG. 12 is a schematic diagram of a partial structure of an end encapsulation cover according to some embodiments of the present application.
- FIG. 13 is a schematic diagram of a partial structure of a motor according to some embodiments of the present application.
- Fig. 14 is a partial exploded structural diagram of a rotor according to some embodiments of the present application.
- Fig. 15 is a schematic structural diagram of a fan according to some embodiments of the present application.
- 1'-stator assembly 11'-stator core; 111'-stator yoke; 1111'-slot; 1112'-through hole; 112'-stator tooth; 1121'-tooth surface; 1122'-limit Step; 1123'-tooth body; 121'-first winding; 122'-second winding;
- 21'-first rotor assembly 211'-first rotor disc; 212'-first permanent magnet; 22'-second rotor assembly; 221'-second rotor disc; 2211'-outside of the disc body; 2212'- Inside the disc body; 222'-second permanent magnet;
- 31'-first rotating shaft assembly 311'-first rotating shaft; 3111'-connecting section; 3112'-extending section; 312'-first rotating support part; 32'-second rotating shaft assembly; 321'-second rotating shaft 322'-The second rotating support part;
- 101'-first end packaging cover 101'-first end packaging cover; 102'-second end packaging cover; 1021'-bearing chamber; 1022'-annular groove; 110'-support bearing.
- the motor 100 provided by the embodiment of the first aspect of the present application includes: a stator assembly 1, two mutually independent rotor assemblies, and two mutually independent rotating shaft assemblies.
- the stator assembly 1 includes a stator core 11 and two sets of independent windings. As shown in Figure 2, a hollow channel is provided in the radial middle of the stator core 11 ( Figure 1, Figure 2, Figure 3, and Figure 5). (Shown), the axial ends of the stator core 11 are provided with stator teeth protruding to both sides of the axial direction.
- the two sets of windings are respectively wound on the two sets of stator teeth;
- the independent rotor assemblies are coaxially arranged on both sides of the stator assembly 1 facing away from each other, and form an axial air gap with the stator assembly 1, and the two rotor assemblies are configured to rotate independently of each other;
- the two independent rotating shaft assemblies are respectively It is coaxially connected with the two rotor assemblies, and protrudes in the same direction away from the stator core 11 along the axial direction of the motor, and a part of the two rotating shaft assemblies are placed in the hollow channel, as shown in Figs. 1 and 2.
- the motor 100 provided by the embodiment of the first aspect of the present application utilizes the cooperation of a stator assembly 1 with two mutually independent rotor assemblies and two mutually independent rotating shaft assemblies to realize the dual power independent output of a single motor 100 and can drive The two fans rotate independently at their respective speeds and directions, without interfering with each other.
- At least one stator assembly 1 is omitted, which reduces the axial size of the fan and reduces the cost of the fan; compared to a single shaft
- the two fans can be rotated at any speed and at any rotation, which is practical and functional, which significantly improves the diversification of the fan functionality and eliminates the need
- the gear mechanism reduces the difficulty of product manufacturing and installation.
- the motor 100 includes a stator assembly 1, two mutually independent rotor assemblies, and two mutually independent rotating shaft assemblies.
- the stator assembly 1 includes a stator core 11 and two sets of independent windings; the stator core 11 is provided with stator teeth at both axial ends, and the two sets of stator teeth protrude toward both sides along the axial direction of the stator core 11 for supply
- the two sets of windings are wound to ensure that the two sets of windings can act independently of each other on the motor 100;
- a hollow channel is provided in the radial middle of the stator core 11, which provides a favorable axial installation space for the installation of the shaft assembly, making it part of the two shaft assemblies It can be inserted into the hollow channel, thereby further reducing the axial size of the motor 100.
- the two rotor assemblies are coaxially arranged on the two axial sides of the stator assembly 1 facing away from each other, facing two sets of windings respectively, and form an axial air gap with the stator assembly 1 to ensure that the two rotor assemblies do not interfere with each other and realize independent rotation of each other.
- the two rotating shaft assemblies are independent of each other, and are respectively coaxially connected with the corresponding rotor assembly, and respectively rotate synchronously with the corresponding rotor assembly. Among them, the two rotating shaft components protrude toward the same side of the motor 100 in the axial direction, so that the axial end of the motor 100 can output two powers that do not interfere with each other.
- the two rotor assemblies can be respectively denoted as the first rotor assembly 21 and the second rotor assembly 22, the rotating shaft assembly connected to the first rotor assembly 21 is denoted as the first rotating shaft assembly 41, and the rotating shaft assembly connected to the second rotor assembly 22 It is denoted as the second shaft assembly 42, the winding matched with the first rotor assembly 21 is denoted as the first winding 121, and the winding matched with the second rotor assembly 22 is denoted as the second winding 122.
- the rotating shaft assembly includes a rotating shaft, and the rotating shaft of one rotating shaft assembly is a hollow shaft, as shown in Figure 1, and the rotating shaft of the other rotating shaft assembly extends through the hollow shaft, as shown in Figures 1 and 2, and is suitable for being relatively hollow.
- the shaft rotates.
- the rotating shaft assembly includes a rotating shaft, and the rotating shaft of one rotating shaft assembly is a hollow shaft, and the rotating shaft of the other rotating shaft assembly can extend through the hollow shaft, so as to achieve the same convex extension of the two rotating shaft assemblies, so that the axial end of the motor 100 Two fans or other components can be connected at the same time.
- the rotating shaft of the other rotating shaft assembly is a solid shaft, which is beneficial to improve the strength of the rotating shaft.
- the rotating shaft of another rotating shaft assembly can also be a hollow shaft.
- the shaft assembly whose shaft is a hollow shaft is referred to as the second shaft assembly 42
- the shaft of the second shaft assembly 42 is referred to as the second shaft 421
- the shaft of the first shaft assembly 41 is referred to as the first shaft 411.
- the first rotating shaft 411 is a solid shaft, as shown in FIG. 1.
- the shaft of another shaft assembly (ie, the first shaft assembly 41) includes a connecting section 4111 and an extension section 4112 connected to the connecting section 4111.
- the outer diameter of the connecting section 4111 is the same as the outer diameter of the hollow shaft.
- the connecting section 4111 and the hollow shaft are equal and arranged along the axial direction of the hollow channel, and the extension section 4112 extends through the hollow shaft.
- the shaft of another shaft assembly includes a connecting section 4111 and an extension section 4112.
- the outer diameter of the connecting section 4111 is equal to the outer diameter of the hollow shaft, and the connecting section 4111 and the hollow shaft are arranged along the axis of the hollow channel, then the two shafts are assembled
- the outer contour of the part in the hollow channel is kept flush, making the product structure more regular, easy to process and shape, and easy to assemble; at the same time, the part of the shaft connecting the rotor assembly (that is, the connecting section 4111) is relatively thick, which improves
- the strength of the rotating shaft is beneficial to improve the reliability of the rotating shaft; it is also convenient for the two rotating shafts to be supported by supporting structures such as bearings of the same type, so as to improve the reliability and stability of the motor 100.
- the motor 100 further includes: a shaft sleeve 3 arranged in the hollow channel, and a part of the two rotating shaft assemblies is inserted into the shaft sleeve 3.
- a shaft sleeve 3 is arranged in the hollow channel, and one ends of the two rotating shaft components are inserted into the shaft sleeve 3.
- the shaft sleeve 3 can play a good limiting effect on the two rotating shaft components, ensuring the two rotating shaft components and the stator
- the components 1 do not interfere with each other, and reduce the probability of shaking, tilting, and shifting of the rotating shaft component, thereby improving the coaxiality of the two rotating shaft components, which is beneficial to improve the reliability of the motor 100, and it is also beneficial to Improve the assembly accuracy of the shaft assembly and make the installation more convenient.
- the rotating shafts of the two rotating shaft assemblies can be nested, one end of the first rotating shaft assembly 41 is inserted into the sleeve 3, the other end protruding toward the axial side of the motor 100, and one end of the second rotating shaft assembly 42 is inserted into the shaft sleeve 3. It is installed in the shaft sleeve 3, and the other end extends through the above-mentioned rotating shaft assembly to the same axial side of the motor 100, and the two rotating shaft assemblies are respectively coaxially connected with the two rotor assemblies, and respectively rotate synchronously with the corresponding rotor assemblies.
- the motor 100 further includes a supporting bearing 110, which is coaxially arranged between the output end of the hollow shaft and the other rotating shaft.
- Adding a support bearing 110 between the output end of the hollow shaft and the other rotating shaft can further improve the supporting rigidity of the two rotating shaft assemblies, thereby further improving the reliability of the motor 100.
- the stator core 11 includes a stator yoke 111 and a plurality of stator teeth 112 arranged along the circumferential direction of the stator yoke 111. As shown in FIG. 3, the plurality of stator teeth 112 are assembled with the stator yoke 111 The stator core 11 is formed, and a plurality of stator teeth 112 protrude to the axial sides of the stator yoke 111 to form two sets of stator teeth, and the two sets of windings are respectively wound on the stator teeth on both axial sides of the stator yoke 111 .
- stator core 11 splits the stator core 11 into a stator yoke 111 and a plurality of stator teeth 112, which not only helps reduce the processing difficulty of the stator core 11, but also helps reduce the difficulty of winding the two sets of windings.
- the stator yoke 111 may be formed by laminating a plurality of stator punches
- stator tooth 112 may also be formed by laminating a plurality of stator punches.
- the stator core 11 may also be an integrated structure.
- the radial middle of the stator yoke 111 is provided with a through hole 1112 adapted to the sleeve 3 of the motor 100. As shown in FIG. 3, the through hole 1112 constitutes a part of the hollow passage of the stator core 11.
- the plurality of stator teeth 112 are arranged along the circumferential direction of the stator yoke 111, the plurality of stator teeth 112 enclose a certain hollow space, so a through hole 1112 is provided in the radial middle of the stator yoke 111, The through hole 1112 and the aforementioned hollow space form a hollow passage, which can provide a favorable axial installation space for the rotating shaft assembly, thereby shortening the axial size of the motor 100.
- stator yoke 111 is provided with a slot 1111. As shown in FIG. 3, a part of the stator tooth 112 is embedded in the slot 1111, so that the stator tooth 112 and the stator yoke 111 are snap-fitted.
- a slot 1111 is provided on the radially outer side wall of the stator yoke 111, and the stator tooth 112 can be clamped on the stator yoke 111 by using the slot 1111, so as to realize the assembly of the stator yoke 111 and the stator tooth 112, and the structure Simple, easy to process, and easy to assemble.
- any stator tooth 112 includes at least one stator tooth
- the stator tooth includes a tooth body 1123 and a tooth surface 1121 connected to an axial end of the tooth body 1123 and located on the axial side of the stator yoke 111
- any set of stators All tooth surfaces 1121 of the teeth are located in the same plane and perpendicular to the axis of the stator yoke 111.
- Any stator tooth 112 includes at least one stator tooth.
- the stator tooth includes a tooth body 1123 and a tooth surface 1121.
- the tooth surface 1121 is connected to the axial end of the tooth body 1123 away from the stator yoke 111 and is therefore located in the axial direction of the stator yoke 111.
- One side; all tooth surfaces 1121 of any set of stator teeth are located in the same plane and perpendicular to the axis of the stator yoke 111, ensuring that an axial air gap can be formed with the rotor assembly on this side.
- stator tooth portion 112 includes two stator teeth, and the tooth body 1123 of the stator tooth portion 112 is provided with a limiting step 1122. As shown in FIG. 3, the limiting step 1122 abuts against the stator yoke 111 for limiting The stator teeth 112 move axially relative to the stator yoke 111.
- One stator tooth 112 includes two stator teeth, and the tooth surfaces 1121 of the two stator teeth are respectively located on the two axial sides of the stator yoke 111 and can form an axial air gap with the rotor components on both sides.
- one stator tooth portion 112 includes only one stator tooth, the number of stator tooth portions 112 is reduced, and the assembly process is simplified.
- one stator tooth portion 112 may also include only one stator tooth, and two opposite stator tooth portions 112 are installed on one part of the stator core 11 to form two stator teeth.
- the rotor assembly includes a rotor disk coaxially connected with the rotating shaft assembly and a permanent magnet installed on the rotor disk. It includes an outer disc 2211 and an inner disc 2212 connected to the outer disc 2211 in a radial direction from the outside to the inner disc.
- the outer disc 2211 is a disc-shaped structure
- the inner disc 2212 is a disc-shaped structure or a conical structure.
- the rotor assembly includes a rotor disc and a permanent magnet.
- the rotor disc serves as a permanent magnet mounting carrier and realizes the coaxial connection between the rotor assembly and the rotating shaft assembly; the permanent magnet is installed on the rotor disc to generate a magnetic field to interact with the stator assembly 1.
- the outer part 2211 of the rotor disc body is a disc-shaped structure, which is relatively regular in structure, which is convenient for processing and forming, and is also convenient for the arrangement of multiple permanent magnets;
- the inner part 2212 of the disc body is a disc-shaped structure or a conical structure, which is convenient to customize according to the product.
- the specific structure is reasonable to design the assembly structure of the rotor disc and the rotating shaft assembly to provide a favorable space for the installation of other parts.
- the rotor disc and permanent magnets of the first rotor assembly 21 are respectively marked as the first rotor disc 211 and the first permanent magnet 212
- the rotor disc and permanent magnets of the second rotor assembly 22 are respectively marked as the second rotor disc 221 and the first permanent magnet.
- the rotating shaft assembly includes a rotating shaft, and the rotor disc is coaxially connected with the rotating shaft.
- the rotor disc and the rotating shaft are an integral structure of injection molding.
- the rotor disc and the rotating shaft are an integral structure formed by welding.
- the rotor disc is threadedly connected to the rotating shaft.
- the rotor disc and the rotating shaft are interference fit.
- the rotating shaft assembly includes a rotating shaft.
- the rotor disc and the rotating shaft are coaxially connected and fixed together by injection molding or welding to form an integrated structure, or a fixed connection is achieved through threaded connection, interference assembly, etc., which effectively guarantees the rotating shaft and the rotor
- the connection reliability of the disc ensures the reliability of the synchronous rotation of the rotating shaft and the rotor assembly.
- the rotating shaft and the rotor disk may also be fixedly connected in other ways, such as fastener connection.
- the permanent magnets have a circular or fan-shaped pie-shaped structure, the number of permanent magnets is multiple, and the multiple permanent magnets are evenly distributed in the circumferential direction on the axial surface of the rotor disk facing the stator yoke 111 to form an axial magnetic flux;
- the N poles and S poles of the two permanent magnets are alternately arranged or arranged in a Halbach array.
- the permanent magnets have a circular or fan-shaped pie-shaped structure, which is convenient for arrangement and reduces the axial size of the motor 100.
- a plurality of permanent magnets are evenly distributed on the surface of the rotor disk facing the stator yoke 111 along the circumferential direction of the rotor disk.
- Axial magnetic flux is formed between the rotor assembly and the stator assembly 1.
- the N poles and S poles of two adjacent permanent magnets can be alternately arranged, or arranged in a Halbach array, which can be specifically adjusted according to product requirements.
- the rotating shaft assembly includes a rotating shaft and a rotating support part, the rotating support part is accommodated in the shaft sleeve 3 and located between the shaft sleeve 3 and the rotating shaft for The rotating shaft is supported and adapted to rotate relative to the sleeve 3, and the rotating shaft is coaxially connected with the rotor assembly.
- the rotating shaft assembly includes a rotating shaft and a rotating support part.
- the rotating support part is accommodated in the sleeve 3 and is located between the sleeve 3 and the rotating shaft to ensure the stability of the position of the rotating shaft and the stability during rotation; the rotating shaft and the rotor assembly are coaxially connected ,
- the power output function of the motor 100 is realized.
- the rotation shaft and the rotation support portion of the first rotation shaft assembly 41 are respectively denoted as the first rotation shaft 411 and the first rotation support portion 412
- the rotation shaft and the rotation support portion of the second rotation shaft assembly 42 are respectively denoted as the second rotation shaft 421 and The second rotation support 422.
- the rotating support part includes at least one bearing, as shown in FIG. 1 and FIG. 2.
- the rotating support portion includes at least one bearing, and the use of the bearing to support the rotating shaft can significantly improve the reliability of the rotating shaft.
- the rotation support part is not limited to the bearing, and may also have other structures.
- a plurality of needle rollers are arranged in the circumferential direction on the inner side wall 32 of the sleeve 3, and a plurality of needle rollers are used to support the rotating shaft; or, a plurality of connecting rings are arranged in the axial direction on the inner side wall 32 of the sleeve 3, and the connecting ring
- the inner side wall is a smooth surface, and multiple connecting rings are used to support the rotating shaft.
- the number of bearings is multiple, and multiple bearings are distributed on the same axial side of the rotor assembly at intervals along the length of the rotating shaft, as shown in Figs. 1 and 2.
- a plurality of bearings are arranged at intervals along the length of the rotating shaft, which can support multiple parts of the rotating shaft, which is beneficial to improve the supporting reliability of the rotating support part to the rotating shaft, thereby further improving the reliability of the rotating shaft assembly; and the multiple bearings are located in the corresponding position.
- the rotor assembly has the same axial side, so that multiple bearings can be completely contained in the shaft sleeve 3.
- the number of bearings is two, and the two bearings can effectively improve the reliability of the support for the rotating shaft assembly, and are also convenient to be accommodated in the shaft sleeve 3, reduce the number of parts, and save production costs.
- the outer side wall 31 of the sleeve 3 is matched with the hollow channel
- the inner side wall 32 of the sleeve 3 is matched with the bearing
- the sleeve 3 is matched with the hollow channel through a concave-convex structure to limit the axial sleeve 3 relative to the stator assembly 1 mobile.
- the outer side wall 31 of the sleeve 3 is matched with the hollow passage, and the inner side wall 32 of the sleeve 3 is matched with the bearing to ensure the stability of the position of the sleeve 3; and the sleeve 3 is matched with the hollow passage through a concave-convex structure to prevent the sleeve 3
- the relative stator assembly 1 moves along the axial direction, thereby further improving the stability of the shaft sleeve 3.
- the concave-convex structure includes a flange 33 (as shown in FIG. 4) provided on the outer side wall 31 of the sleeve 3 and a groove provided on the wall surface of the hollow channel; wherein the flange 33 is also provided with at least one notch 34, As shown in Figure 4.
- a flange 33 is provided on the outer side wall 31 of the sleeve 3, and a groove is provided on the wall of the hollow channel.
- the flange 33 is also provided with at least one notch 34, which can be matched with the concave and convex of the later injection molded casing, so as to prevent the sleeve 3 from rotating circumferentially relative to the stator assembly 1, thereby improving the stability of the sleeve 3.
- the number of the notches 34 is multiple, and the multiple notches 34 are distributed at intervals along the circumferential direction of the flange 33.
- a partition is provided on the inner side wall 32 of the shaft sleeve 3, and the partition is used to separate the two rotation support parts.
- a partition is provided on the inner side wall 32 of the shaft sleeve 3.
- the partition can be used to separate the rotation support parts of the two rotating shaft assemblies, thereby effectively preventing the two rotating shaft assemblies from interfering with each other, and further improving the reliability of the two rotating shaft assemblies. .
- the partition is a groove 35 (as shown in FIG. 4) for installing an annular retaining ring or a baffle; the partition may also be an annular protrusion or an integrally formed partition.
- the motor 100 further includes: an insulating frame, a mounting frame 6 and a plurality of pins 7, as shown in FIGS. 1 and 2.
- the insulating frame is installed on the stator teeth; the mounting frame 6 is fixedly connected to the insulating frame; a plurality of pins 7 are inserted on the mounting frame 6, and the lead wires of the two sets of windings are fixedly connected to the plurality of pins 7 .
- the motor 100 also includes an insulating frame, a mounting frame 6 and a plurality of pins 7.
- the insulating frame is mounted on the stator teeth to ensure the safety and reliability of the windings mounted on the stator teeth;
- the mounting frame 6 is fixedly connected to the insulating frame, and
- a plurality of pins 7 are inserted, and the lead wires of the two sets of windings are fixedly connected to the plurality of pins 7 so as to lead the appearance heads of the two sets of windings to a fixed and stable conductive carrier.
- the number of insulating frames is two or two groups.
- the two or two groups of insulating frames are respectively installed on the two sets of stator teeth, and they are respectively recorded as the first insulating frame 51 and the second insulating frame 52.
- An insulating frame is fixedly connected.
- the mounting frame 6 is an arc-shaped strip structure coaxial with the stator assembly 1, and the mounting frame 6 and the plurality of pins 7 are located on the radially outer side of the rotor assembly, as shown in FIG. 5.
- the mounting frame 6 is an arc-shaped strip structure coaxial with the stator assembly 1, and the mounting frame 6 and a plurality of pins 7 are located on the radially outer side of the two rotor assemblies, so that the structure of the motor 100 is relatively regular, and it is not easy to interfere with the motor. 100's internal magnetic field, while facilitating connection with external circuits.
- the motor 100 also includes a casing 8.
- the casing 8 is an injection molded body, and the insulating frame, the mounting frame 6, the plurality of pins 7 and the shaft sleeve 3 are fixedly connected into a whole, as shown in FIG.
- the outer diameter of the casing 8 is larger than the maximum radial outer contour surface formed by the stator assembly 1, the insulating frame, the mounting frame 6, and the plurality of pins 7, and the axial ends of the casing 8 include inner end surfaces and The outer end surface connected with the outer edge of the inner end surface, the outer end surface is located radially outside of the inner end surface and at least partially protrudes from the inner end surface, so that the axial end surfaces of the casing 8 form a stepped structure with high outside and low inside, wherein, The two inner end surfaces are flush with the axial end surfaces of the stator core 11 or do not exceed the axial end surfaces of the stator core 11.
- the motor 100 also includes a casing 8, which is an injection molded body, and covers the insulating frame, the mounting frame 6, and other structures, so that the insulating frame, the mounting frame 6, the plurality of pins 7 and the shaft sleeve 3 can be fixedly connected to form a whole.
- the stability of the motor 100 is ensured; and the outer diameter of the casing 8 is larger than the maximum radial outer contour surface formed by the stator assembly 1, the insulating frame, the mounting frame 6, and the plurality of pins 7, ensuring that these components are covered in the casing 8 in the radial outer surface, so as to ensure the integrity and regularity of the appearance of the motor 100 and its insulation from the outside world.
- the axial end faces of the casing 8 are not regular planes, but a stepped structure with high outside and low inside, as shown in Figures 2 and 5, which are located on the radially outer side.
- the protruding part is marked as the outer end face, which is relatively small in size; the recessed part on the inner side is marked as the inner end face, and the size is relatively large, as shown in Figures 2 and 5.
- the two inner end surfaces (that is, the axial end surfaces on the radially inner side of the casing 8) are flush with the axial end surfaces of the stator core 11 or do not exceed the axial end surfaces of the stator core 11 (that is, the stator core 11 of the two sets of tooth surfaces 1121), it is convenient to more accurately and effectively control the axial air gap between the tooth surface and the permanent magnet.
- the two outer end surfaces of the casing 8 are respectively provided with circular bosses coaxial with the stator assembly 1, as shown in FIG. 5.
- the two outer end faces of the casing 8 (that is, the radially outer axial end faces of the casing 8) are provided with two circular bosses, and the two circular bosses are coaxially connected with the stator assembly 1 for easy connection with other
- the structure is matched to encapsulate the motor 100. Further, some avoiding notches can be provided on the circular boss, which is convenient for the assembly or debugging of the motor 100.
- the circular boss on the side of the first rotor assembly 21 is recorded as the first circular boss 82
- the circular boss on the side of the second rotor assembly 22 is recorded as the second circular boss 83.
- the housing 8 is provided with a stepped surface 84 at one axial end close to the plurality of pins 7, and the plurality of pins 7 penetrate the stepped surface 84 and protrude from the stepped surface 84 along the axial direction of the stator assembly 1, as shown in FIG. Show.
- a stepped surface 84 is provided at the axial end of the housing 8 close to the plurality of pins 7 so that the plurality of pins 7 penetrate the stepped surface 84 and protrude from the stepped surface 84 along the axial direction of the stator assembly 1, which can be the pins 7 and
- the connection or installation of other conductive parts provides a favorable space.
- the step surface 84 can be arranged on the inner side wall of one of the circular bosses, which further simplifies the structure of the casing 8.
- the motor 100 further includes: two end encapsulation covers, which are respectively coaxially fixedly installed on the axial ends of the casing 8 for encapsulating the motor 100, and are provided with two A shaft hole through which a shaft assembly extends.
- the end encapsulation covers are installed at the axial ends of the casing 8 to ensure the integrity of the motor 100 and effectively protect the internal structure of the motor 100; and the end encapsulation covers are provided with shaft holes for corresponding The shaft extends to ensure that the power of the motor 100 can be output.
- a step is formed between the outer wall surface of the circular boss and the outer wall surface of the casing 8, and the end encapsulation cover can be provided with a cover edge to fit the step, so that the outer contour of the motor 100 is relatively regular.
- the end packaging cover on the side of the first rotor assembly 21 is marked as the first end packaging cover 131, and the end packaging cover on the side of the second rotor assembly 22 is marked as the second end packaging cover 132.
- the motor 100 further includes: an electric control board 9 built in between the rotor assembly on either side of the motor 100 and the end encapsulation cover.
- the arrangement of the electric control board 9 is conducive to the realization of the automatic control of the motor 100; the electric control board 9 is arranged on either side of the motor 100, and is located between the rotor assembly on that side and the end encapsulation cover, thus ensuring the electric control board
- the stability of 9 facilitates the circuit output of the electric control board 9.
- the motor 100 further includes two shaft sleeve packaging covers, which are fixedly connected to the axial ports of the shaft sleeve 3 to restrict the axial movement of the rotating shaft assembly.
- the shaft sleeve packaging cover can be fixedly connected to the shaft sleeve 3 by fasteners such as screws.
- the sleeve encapsulation cover on the side of the first rotor assembly 21 is marked as the first sleeve encapsulation cover 101
- the sleeve encapsulation cover on the side of the second rotor assembly 22 is marked as the second sleeve encapsulation cover 102.
- the fan provided by the embodiment of the second aspect of the present application includes: at least one motor 100 as in any one of the embodiments of the first aspect and two fans.
- the rotating shaft assembly is fixedly connected, and the two fans rotate coaxially and independently of each other.
- the fan provided by the embodiment of the second aspect of the present application includes the motor 100 of any one of the embodiments of the first aspect, so it has a compact structure, strong practical functionality, convenient installation, small axial size, and low manufacturing cost. advantage.
- the fan connected to the first rotating shaft assembly 41 is recorded as the first fan 200, and the fan connected to the second rotating shaft assembly 42 is recorded as the second fan 300.
- the extending direction of the central axis of FIG. 1 is referred to as "axial"
- the direction surrounding the central axis is referred to as “circumferential”
- the direction perpendicular to the central axis is referred to as "radial”.
- the motor 100 and fan provided in the present application will be described below in conjunction with a specific example.
- a motor 100 includes a stator assembly 1, two rotor assemblies (ie, a first rotor assembly 21 and a second rotor assembly 22), a sleeve 3, and two rotating shaft assemblies (ie, a first rotor assembly).
- the stator assembly 1 includes a stator core 11 and two sets of windings (ie, a first winding 121 and a second winding 122).
- the stator core 11 is connected by a stator yoke 111 and a plurality of detachable stator teeth 112 into one.
- the radial hollow, the integral of the tooth extension on both sides of the axial direction, the radial hollow of the stator provides a favorable axial installation space for the bearing of the motor 100, the first winding 121 and the second winding 122 are respectively wound around the stator teeth on both sides of the stator axis
- the first winding 121 and the second winding 122 can act on the motor 100 independently of each other.
- the stator yoke 111 is provided with a plurality of slots (ie, clamping slots 1111) on the radial outside of the stator yoke 111 for the matching installation of the stator teeth 112; the stator yoke 111 is provided with a round hole slot (ie through holes 1112) on the radial inner side of the stator yoke 111. To the installation of the shaft sleeve 3.
- a single stator tooth 112 has at least one tooth body 1123 and at least one tooth surface 1121. After the multiple stator teeth 112 and the stator yoke 111 are matched and installed, the stator yoke 111 has two sets of tooth bodies 1123 and two tooth bodies 1123 on both sides in the axial direction.
- the group of tooth surfaces 1121 and the group of tooth surfaces 1121 that interact with the same rotor assembly are all in a plane and perpendicular to the axis; the surface where the stator teeth 112 and the stator yoke 111 are installed in cooperation is designed with a limited step 1122 for It abuts against the axial end surface of the stator yoke 111 to define the axial relative position of the stator tooth 112 and the stator yoke 111.
- the first rotor assembly 21 and the second rotor assembly 22 are coaxially and rotatably disposed outside the axial sides of the stator assembly 1, and form an axial air gap with the stator assembly 1.
- the first rotor assembly 21 includes a first rotor disc 211 and a first permanent magnet 212
- the second rotor assembly 22 includes a second rotor disc 221 and a second permanent magnet 222.
- the first rotor assembly 21 and the second rotor assembly 22 can be independent of each other. Spin.
- the structure of the first rotor disk 211 and the second rotor disk 221 are roughly the same. Taking one of the rotor disks as an example for description, the radially outer side of the rotor disk is a disk-shaped structure, and the radially inner side is a disk-shaped plane or conical slope structure. , Provide favorable space for the installation of other parts.
- the radially outer side of the first rotor disk 211 is a disc-shaped structure, and is fixedly connected to the first shaft 411 by a screw connection;
- the second rotor disk 221 is a disk-shaped structure on the radially outer side, and is connected to the second shaft 421 by injection molding. Fixed connection.
- the first permanent magnet 212 and the second permanent magnet 222 are circular or fan-shaped pie-shaped structures, and are evenly distributed in the circumferential direction on the axial surface of the disc-shaped structure of the rotor disk to form an axial magnetic flux; the N and the two adjacent permanent magnets
- the S poles are arranged alternately or in Halbach arrangement.
- the sleeve 3 is located in the hollow of the stator iron core 11, is coaxially fixed and extends out of the stator yoke 111 on both sides of the axis.
- the outer wall of the sleeve 3 is matched with the circular slot hole on the radial inner side of the stator yoke 111, the inner wall of the sleeve 3 is matched with the bearings of the first shaft assembly 41 and the second shaft assembly 42, and a flange 33 is designed on the radial outer side of the sleeve 3 , Used for axial limit with the stator yoke 111, and a plurality of small notches 34 are evenly distributed in the radial direction of the flange 33 for the rotation-stop connection; a groove 35 is provided in the middle of the inner wall of the sleeve 3, For the installation of the retaining ring, the first rotation support portion 412 and the second rotation support portion 422 of the two rotating shaft assemblies are spaced apart.
- the first shaft assembly 41 and the second shaft assembly 42 are coaxially fixedly connected with the first rotor assembly 21 and the second rotor assembly 22, respectively, and output coaxially from the same side of the motor 100 axis.
- the first shaft assembly 41 and the second shaft assembly 42 can rotate independently of each other.
- the first rotating shaft assembly 41 includes a solid shaft and two bearings. The two bearings are coaxially arranged on the radially outer side of the solid shaft and axially spaced apart on the same axial side as the first rotor assembly to form a first rotating support portion.
- the second rotating shaft assembly 42 includes a hollow shaft and two bearings, the two bearings are coaxially arranged on the radial outside of the hollow shaft and are axially spaced apart on the same axial side of the fixed second rotor assembly to form a second rotation Support 422.
- the first rotation support portion 412 of the first rotation shaft assembly 41 and the second rotation support portion 422 of the second rotation shaft assembly 42 are disposed on both sides of the motor 100 in the axial direction, and all are accommodated in the shaft sleeve 3.
- the motor 100 also includes a first insulating frame 51 and a second insulating frame 52 installed on the tooth body 1123 of the stator tooth, a mounting frame 6 fixed to the first insulating frame 51 or the second insulating frame 52, and a mounting frame inserted into the 6 on multiple pins 7.
- the lead wires of the first winding 121 and the second winding 122 are fixedly connected to the plurality of pins 7 so as to lead the lead ends of the first winding 121 and the second winding 122 to a fixed and stable conductive carrier.
- the mounting frame 6 is an arc-shaped strip structure coaxial with the stator, and the mounting frame 6 and the plurality of pins 7 are located on the radially outer side of the first rotor assembly 21 and the second rotor assembly 22.
- the motor 100 further includes a plastic casing 8 which fixes the stator assembly 1, the first insulating frame 51 and the second insulating frame 52, the mounting frame 6, the plurality of pins 7 and the shaft sleeve 3 into a whole.
- the outer diameter of the plastic casing 8 is larger than the maximum radial outer contour surface formed by the stator assembly 1, the first insulating frame 51 and the second insulating frame 52, the mounting frame 6, and the plurality of pins 7; the stator teeth 112 on both sides in the axial direction
- the wrapping surface that is, the axial end surfaces of the casing 8) are flush or not beyond the two sets of tooth surfaces 1121 of the stator assembly 1; the outer sides of the axial ends of the plastic casing 8 are designed with two cylindrical bosses coaxial with the stator assembly 1 (I.e. round boss); the plastic casing 8 is provided with a step surface 84 on the side where the pin 7 is located, and the pin 7 is exposed to the step surface 84 for a certain distance, which provides for the
- the motor 100 further includes a first shaft sleeve encapsulation cover 101 and a second shaft sleeve encapsulation cover 102.
- the first shaft sleeve encapsulation cover 101 and the second shaft sleeve encapsulation cover 102 are fixedly connected to the port of the shaft sleeve 3 to define the first shaft assembly 41 And the axial movement of the second shaft assembly 42.
- the motor 100 further includes a first end encapsulation cover 131 and a second end encapsulation cover 132.
- the first end encapsulation cover 131 and the second end encapsulation cover 132 are respectively coaxially fixedly mounted on the two axial ends of the plastic casing 8. , Used to encapsulate the motor 100, and the end encapsulation cover and the plastic casing 8 are matched with a stop.
- the electric motor 100 may also include an electric control board 9 which is built in between the first rotor assembly 21 and the first end encapsulation cover 131 or the second rotor assembly 22 and the second end encapsulation cover on either side of the electric motor 100 132 between.
- the motor 100 may further include a supporting bearing 110 which is coaxially arranged between the output end of the hollow shaft and the solid shaft to increase the supporting rigidity of the first rotating shaft assembly 41 and the second rotating shaft assembly 42.
- a fan includes: a motor 100, a first fan 200, and a second fan 300.
- the first fan 200 and the second fan 300 are coaxially fixed with a first rotating shaft assembly 41 and a second rotating shaft assembly 42 output from the same side of the motor 100, respectively. Connected, the first fan 200 and the second fan 300 rotate coaxially and independently of each other.
- the above-mentioned motor and fan have significant advantages such as compact structure, strong practical functionality, convenient installation, small axial size, and low manufacturing cost.
- the motor 100' provided by the embodiment of the first aspect of the present application includes: a stator assembly 1', two mutually independent rotor assemblies, and two mutually independent rotating shaft assemblies.
- the stator assembly 1' includes a stator core 11' and two sets of independent windings.
- a hollow channel is provided in the radial middle of the stator core 11'.
- the stator core 11' has two sets of windings in the axial direction. The end is provided with stator teeth protruding to both sides of the axial direction.
- the two sets of windings are respectively wound on the two sets of stator teeth; two mutually independent rotor assemblies are coaxially arranged on the stator assembly.
- the two rotor assemblies are configured to rotate independently of each other; two independent rotating shaft assemblies, the rotating shaft assembly includes a rotating shaft and a rotating support part, rotating The supporting portion is at least partially contained in the hollow channel and sleeved on the rotating shaft for supporting the rotating shaft and making the rotating shaft suitable for rotating relative to the stator core 11'.
- the two rotating shafts are respectively coaxially connected with the two rotor components and run along the motor 100.
- the axial direction of ′′ protrudes toward the same side direction away from the stator core 11 ′, as shown in FIGS. 8 and 9.
- the motor 100' provided by the embodiment of the first aspect of the present application utilizes the cooperation of a stator assembly 1'with two mutually independent rotor assemblies and two mutually independent rotating shaft assemblies to realize the dual power independent output of a motor 100' , Can drive two fans to rotate independently at their respective speeds and directions, without interfering with each other.
- at least one stator assembly 1' is omitted, which reduces the axial size of the fan and reduces the cost of the fan;
- the single-axis motor 100' and the gear mechanism cooperate to realize the solution of shaft extension at both ends, which realizes that the two fans can rotate at any speed and any rotation, which has strong practical functionality and significantly improves the diversification of fan functionality.
- the gear mechanism is omitted, and the manufacturing and installation difficulty of the product is reduced.
- the motor 100' includes a stator assembly 1', two mutually independent rotor assemblies, and two mutually independent rotating shaft assemblies.
- the stator assembly 1' includes a stator core 11' and two sets of independent windings; the stator core 11' is provided with stator teeth at both axial ends, and the two sets of stator teeth face both sides along the axial direction of the stator core 11' Convex extension for winding two sets of windings to ensure that the two sets of windings can act independently of each other on the motor 100'; a hollow channel is provided in the radial middle of the stator core 11', which provides a favorable axial installation space for the installation of the shaft assembly, so that A part of the two rotating shaft assemblies can be inserted into the hollow channel, thereby further reducing the axial size of the motor 100'.
- the rotating shaft assembly includes a rotating shaft and a rotating support part.
- the rotating support part is partially or fully accommodated in the hollow channel and sleeved on the rotating shaft to ensure the stability of the position of the rotating shaft and the stability during rotation; the rotating shaft is coaxially connected with the rotor assembly, The power output function of the motor 100' is realized.
- the two rotating shaft assemblies are independent of each other, and are respectively coaxially connected with the corresponding rotor assembly, and respectively rotate synchronously with the corresponding rotor assembly.
- the two rotating shaft components protrude toward the same axial side of the motor 100', so that the axial end of the motor 100' can output two powers that do not interfere with each other, compared to protruding toward the two axial sides of the motor 100' , Which is beneficial to shorten the axial distance of the output end of the motor 100'.
- the axial ends of the motor 100' can output two independent torques, which is equivalent to using one
- the motor 100' realizes the functions of two mutually independent motors 100', and therefore has the significant advantages of compact structure, strong practical functionality, convenient installation, small axial size, and low manufacturing cost.
- the two rotor assemblies can be respectively denoted as the first rotor assembly 21' and the second rotor assembly 22', and the rotating shaft assembly connected with the first rotor assembly 21' is denoted as the first rotating shaft assembly 31', and the second rotor assembly 22
- the connected shaft assembly is referred to as the second shaft assembly 32'
- the winding matching with the first rotor assembly 21' is referred to as the first winding 121'
- the winding matching with the second rotor assembly 22' is referred to as the second winding 122'.
- the rotation axis and the rotation support portion of the first rotation shaft assembly 31' are respectively denoted as the first rotation shaft 311' and the first rotation support portion 312'
- the rotation axis and the rotation support portion of the second rotation axis assembly 32' are respectively denoted as the first rotation axis 311' and the first rotation support portion 312'.
- the rotating support part includes at least one bearing, as shown in FIGS. 8 and 9.
- the rotating support portion includes at least one bearing, and the use of the bearing to support the rotating shaft can significantly improve the reliability of the rotating shaft.
- the rotation support part is not limited to the bearing, and may also have other structures.
- multiple needle rollers are arranged in the circumferential direction on the inner side wall of the hollow channel, and multiple needle rollers are used to support the rotating shaft; or, multiple connecting rings are arranged on the inner side wall of the hollow channel in the axial direction, and the inner side wall of the connecting ring is smooth Surface, using multiple connecting rings to support the rotating shaft.
- the number of bearings is multiple, and the multiple bearings are distributed on both axial sides of the rotor assembly at intervals along the length direction of the rotating shaft, as shown in FIGS. 8 and 9.
- a plurality of bearings are arranged at intervals along the length of the rotating shaft, which can support multiple parts of the rotating shaft, which is beneficial to improve the supporting reliability of the rotating support part to the rotating shaft, thereby further improving the reliability of the rotating shaft assembly; and the multiple bearings are located in the corresponding position.
- the axial sides of the rotor assembly can support multiple parts of the rotating shaft in a dispersed manner, thereby improving the reliability of supporting the rotating shaft, and significantly reducing the risk of tilting of the rotating shaft, thereby improving the reliability of the motor 100'.
- the number of bearings is two. As shown in Figs. 8 and 9, the two bearings can effectively improve the reliability of the support for the rotating shaft assembly, and can also reduce the number of parts and save production costs.
- the motor 100' also includes: two bearing covers, which are sleeved in the hollow channel and fixedly connected to the stator core 11', and the two bearing covers are arranged opposite to each other for respectively Support the axially inner bearing of the corresponding rotating shaft assembly.
- Two bearing covers are arranged in the hollow channel to support the axially inward bearings of the two rotating shaft assemblies (that is, the bearings relatively close to the inside of the motor 100'). Since the two bearing covers are arranged opposite to each other, the two rotating supports can be supported The part plays a good limiting role to ensure that the two rotating shaft assemblies and the stator assembly 1'do not interfere with each other, and reduce the probability of shaking, tilting, and displacement of the rotating shaft assembly, which is beneficial to improve the performance of the motor 100' Reliability in use is also conducive to improving the assembly accuracy of the rotating shaft assembly and making the installation more convenient; and the two bearing covers can act as a separator to separate the rotating support parts of the two rotating shaft assemblies, thereby effectively preventing two rotating shafts The components interfere with each other, which further improves the reliability of the use of the two rotating shaft components.
- the bearing cover corresponding to the first rotating shaft assembly 31' is marked as the first bearing cover 41', and the bearing cover corresponding to the second rotating shaft assembly 32' is marked as the second bearing cover 42'.
- the shape of the bearing cover is adapted to the bearing, as shown in Figs. 9 and 11, the bearing is accommodated in the bearing cover and supported by the bearing cover, as shown in Fig. 8.
- the bearing cover is adapted to the form of the bearing, the axially inner bearings of the two rotating shaft assemblies can sink into the bearing cover, thereby obtaining effective support and limiting, and further improving the reliability of the motor 100'.
- the open end of the bearing cover is provided with flanges 413' extending radially outward, as shown in Fig. 11.
- the open end of the bearing cover is provided with a flange 413', which extends radially outward, which can be matched with the concave and convex of the later injection molded casing 8'to play a certain limiting role and prevent the bearing cover from being relative to the stator core 11. 'Axial movement.
- At least one notch 414' is provided on the flange 413', as shown in FIG. 11.
- At least one notch 414' is provided on the flange 413', and the notch 414' can be matched with the concave and convex of the later injection molded casing 8'to prevent the bearing cover from rotating circumferentially relative to the stator assembly 1', thereby improving the stability of the bearing cover. Further, the number of notches 414' is multiple, and the multiple notches 414' are spaced along the circumferential direction of the flange 413'.
- the rotating shaft of one of the rotating shaft components is a hollow shaft, as shown in FIG. 8, and the rotating shaft of the other rotating shaft component extends through the hollow shaft, as shown in Figures 8 and 9, and is suitable for rotating relative to the hollow shaft.
- the rotating shaft of one of the rotating shaft components is a hollow shaft, and the rotating shaft of the other rotating shaft component can extend through the hollow shaft, so as to achieve the same convex extension of the two rotating shaft components, so that the axial end of the motor 100' can be connected to two at the same time.
- the rotating shaft of the other rotating shaft assembly is a solid shaft, which is beneficial to improve the strength of the rotating shaft.
- the rotating shaft of another rotating shaft assembly can also be a hollow shaft.
- the shaft assembly whose shaft is a hollow shaft is referred to as the second shaft assembly 32'
- the shaft of the second shaft assembly 32' is referred to as the second shaft 321'
- the shaft of the first shaft assembly 31' is referred to as the first shaft 311'
- the first rotating shaft 311' is a solid shaft, as shown in Fig. 8.
- the rotating shaft of another rotating shaft assembly (ie, the first rotating shaft assembly 31') includes a connecting section 3111' and an extension section 3112' connected to the connecting section 3111'.
- the outer diameter of the connecting section 3111' is The outer diameter of the hollow shaft is equal, the connecting section 3111' and the hollow shaft are arranged along the axis of the hollow channel, and the extension section 3112' extends through the hollow shaft.
- the shaft of another shaft assembly includes a connecting section 3111' and an extension section 3112'.
- the outer diameter of the connecting section 3111' is equal to the outer diameter of the hollow shaft, and the connecting section 3111' and the hollow shaft are arranged along the axis of the hollow channel, then After the two shafts are assembled, the outer contours of the part in the hollow channel remain flush, making the product structure more regular, easy to process and shape, and easy to assemble; at the same time, the part of the shaft connected to the rotor assembly (that is, the connecting section 3111') is opposite Thickness increases the strength of the rotating shaft, which is beneficial to improve the reliability of the rotating shaft; it is also convenient for the two rotating shafts to be supported by supporting structures such as bearings of the same type, so as to improve the reliability and stability of the motor 100'.
- the motor 100' further includes a supporting bearing 110', which is coaxially arranged between the output end of the hollow shaft and the other rotating shaft.
- Adding a support bearing 110' between the output end of the hollow shaft and the other rotating shaft can further improve the supporting rigidity of the two rotating shaft assemblies, thereby further improving the reliability of the motor 100'.
- the stator core 11' includes a stator yoke 111' and a plurality of stator teeth 112' arranged in the circumferential direction of the stator yoke 111'. As shown in FIG. 10, the plurality of stator teeth 112' are connected to each other.
- the stator yoke 111' is assembled to form the stator core 11', and a plurality of stator tooth portions 112' protrude toward the axial sides of the stator yoke 111' to form two sets of stator teeth, and the two sets of windings are respectively wound on the stator yoke. 111' on the stator teeth on both sides of the axial direction.
- stator core 11' splits the stator core 11' into a stator yoke 111' and a plurality of stator teeth 112', which not only helps to reduce the processing difficulty of the stator core 11', but also helps reduce the difficulty of winding the two sets of windings.
- stator yoke 111' may be formed by laminating a plurality of stator punches, and the stator teeth 112' may also be formed by laminating a plurality of stator punches.
- the stator core 11' may also be an integral structure.
- the radial middle portion of the stator yoke 111' is provided with a through hole 1112' adapted to the bearing cover of the motor 100'. As shown in FIG. 10, the through hole 1112' constitutes a part of the hollow passage of the stator core 11'.
- the plurality of stator teeth 112' are arranged along the circumferential direction of the stator yoke 111', the plurality of stator teeth 112' enclose a certain hollow space and are therefore arranged in the radial middle of the stator yoke 111'
- the through hole 1112' which forms a hollow passage with the aforementioned hollow space, can provide a favorable axial installation space for the rotating shaft assembly, thereby shortening the axial size of the motor 100'.
- stator yoke 111' is provided with a slot 1111', as shown in FIG. 10, a part of the stator tooth 112' is embedded in the slot 1111', so that the stator tooth 112' and the stator yoke 111' snap fit.
- a slot 1111' is provided on the radially outer side wall of the stator yoke 111', and the stator tooth 112' can be clamped on the stator yoke 111' by using the slot 1111' to realize the stator yoke 111' and the stator tooth
- the 112' assembly is simple in structure, easy to process and easy to assemble.
- any stator tooth portion 112' includes at least one stator tooth
- the stator tooth includes a tooth body 1123' and a tooth surface 1121' connected to an axial end of the tooth body 1123' and located on the axial side of the stator yoke 111' All the tooth surfaces 1121' of any group of stator teeth are located in the same plane and perpendicular to the axis of the stator yoke 111'.
- Any stator tooth 112' includes at least one stator tooth.
- the stator tooth includes a tooth body 1123' and a tooth surface 1121'.
- the tooth surface 1121' is connected to the axial end of the tooth body 1123' away from the stator yoke 111', and is thus located in the stator
- the axial side of the yoke 111'; all the tooth surfaces 1121' of any set of stator teeth are in the same plane and perpendicular to the axis of the stator yoke 111', ensuring that an axial air gap can be formed with the rotor assembly on this side .
- stator tooth portion 112' includes two stator teeth, and the tooth body 1123' of the stator tooth portion 112' is provided with a limiting step 1122', as shown in FIG. 10, the limiting step 1122' and the stator yoke 111' The abutment is used to restrict the axial movement of the stator teeth 112' relative to the stator yoke 111'.
- One stator tooth 112' includes two stator teeth.
- the tooth surfaces 1121' of the two stator teeth are respectively located on the two axial sides of the stator yoke 111', and can form an axial air gap with the rotor components on both sides.
- one stator tooth portion 112' includes only one stator tooth, the number of stator tooth portions 112' is reduced, and the assembly process is simplified.
- one stator tooth 112' may also include only one stator tooth, and two opposite stator teeth 112' are installed on one part of the stator core 11' to form two stator teeth.
- the rotor assembly includes a rotor disk coaxially connected with the corresponding rotating shaft and a permanent magnet installed on the rotor disk.
- the rotor disk Along its radial direction from the outside to the inside, it includes an outer disc body 2211' and an inner disc body 2212' connected to the outer disc body 2211', wherein the outer disc body 2211' is a disc-shaped structure, and the inner disc body 2212' is a disc-shaped structure Structure or conical structure.
- the rotor assembly includes a rotor disc and a permanent magnet.
- the rotor disc serves as a permanent magnet mounting carrier and realizes the coaxial connection between the rotor assembly and the rotating shaft; the permanent magnet is installed on the rotor disc to generate a magnetic field to interact with the stator assembly 1'.
- the outer part 2211' of the rotor disc body is a disc-shaped structure, which is relatively regular in structure, which is convenient for processing and forming, and is also convenient for the arrangement of multiple permanent magnets;
- the inner part 2212' of the disc body is a disc-shaped structure or a conical structure, which is convenient for reference
- the specific structure of the product is reasonably designed for the assembly structure of the rotor disc and the shaft assembly, which provides a favorable space for the installation of other parts.
- the rotor disc and permanent magnets of the first rotor assembly 21' are respectively marked as the first rotor disc 211' and the first permanent magnet 212'
- the rotor discs and permanent magnets of the second rotor assembly 22' are respectively marked as the second rotor The disc 221' and the second permanent magnet 222'.
- the rotor disc and the rotating shaft are an integral structure of injection molding.
- the rotor disc and the rotating shaft are an integral structure formed by welding.
- the rotor disc is threadedly connected to the rotating shaft.
- the rotor disc and the rotating shaft are interference fit.
- the rotating shaft assembly includes a rotating shaft, which is coaxially connected with the rotating shaft and fixed together by injection molding or welding forming to form an integrated structure, or a fixed connection is achieved through threaded connection, interference assembly, etc., which effectively guarantees the connection between the rotating shaft and the rotor disc.
- the connection reliability ensures the reliability of the synchronous rotation of the rotating shaft and the rotor assembly.
- the rotating shaft and the rotor disk may also be fixedly connected in other ways, such as fastener connection.
- the permanent magnets have a circular or fan-shaped pie-shaped structure, the number of permanent magnets is multiple, and the multiple permanent magnets are evenly distributed in the circumferential direction on the axial surface of the rotor disk facing the stator yoke 111' to form an axial magnetic flux;
- the N poles and S poles of the two adjacent permanent magnets are alternately arranged or arranged in a Halbach array.
- the permanent magnets have a circular or fan-shaped pie-shaped structure, which is convenient for arrangement and reduces the axial size of the motor 100'.
- a plurality of permanent magnets are evenly distributed on the surface of the rotor disc facing the stator yoke 111' along the circumferential direction of the rotor disc.
- an axial magnetic flux is formed between the rotor assembly and the stator assembly 1'.
- the N poles and S poles of two adjacent permanent magnets can be alternately arranged, or arranged in a Halbach array, which can be specifically adjusted according to product requirements.
- the motor 100' further includes an insulating frame, a mounting frame 6'and a plurality of pins 7', as shown in Figs. 8 and 9.
- the insulating frame is installed on the stator teeth; the mounting frame 6'is fixedly connected to the insulating frame; a plurality of pins 7'are inserted on the mounting frame 6', and the lead wires of the two sets of windings are fixedly connected to the plurality of sockets. Pin 7'on.
- the motor 100' also includes an insulating frame, a mounting frame 6'and a plurality of pins 7'.
- the insulating frame is mounted on the stator teeth to ensure the safety and reliability of the windings mounted on the stator teeth; the mounting frame 6'and the insulating frame It is fixedly connected and inserted with a plurality of pins 7', and the lead wires of the two sets of windings are fixedly connected to the plurality of pins 7', thereby leading the appearance heads of the two sets of windings to a fixed and stable conductive carrier.
- the number of insulating frames is two or two groups, and the two or two groups of insulating frames are respectively installed on the two sets of stator teeth, and they are respectively recorded as the first insulating frame 51' and the second insulating frame 52', and the mounting frame 6 'Fixed connection with one of the insulating frames.
- the mounting frame 6' is an arc-shaped strip structure coaxial with the stator assembly 1', and the mounting frame 6'and a plurality of pins 7'are located on the radially outer side of the rotor assembly, as shown in FIG.
- the mounting frame 6' is an arc-shaped strip structure coaxial with the stator assembly 1', and the mounting frame 6'and a plurality of pins 7'are located radially outside of the two rotor assemblies, so that the structure of the motor 100' is relatively regular. It is not easy to interfere with the internal magnetic field of the motor 100', and at the same time, it is convenient to connect with external circuits.
- the motor 100' also includes a casing 8', as shown in FIG. 9, the casing 8'is an injection molded body, and the insulating frame, the mounting frame 6', the plurality of pins 7', and two of the motor 100'
- the bearing cover is fixedly connected as a whole, as shown in Figure 13, and the outer diameter of the casing 8'is larger than the maximum radial outer contour surface formed by the stator assembly 1', the insulating frame, the mounting frame 6', and the plurality of pins 7'
- the axial end surfaces of the casing 8' both include an inner end surface and an outer end surface connected to the outer edge of the inner end surface.
- the outer end surface is located on the radially outer side of the inner end surface and at least partially protrudes from the inner end surface, so that the casing 8'
- the axial end faces form a stepped structure with a high outer surface and a low inner end surface, wherein the two inner end surfaces are flush with the axial end surfaces of the stator iron core 11' or do not exceed the axial end surfaces of the stator iron core 11'.
- the motor 100' also includes a casing 8'.
- the casing 8' is an injection molded body, covering an insulating frame, a mounting frame 6'and other structures, so that the insulating frame, the mounting frame 6', a plurality of pins 7'and two bearing covers It can be fixedly connected to form a whole to ensure the stability of the motor 100'; and the outer diameter of the casing 8'is larger than the maximum radial outer diameter formed by the stator assembly 1', the insulating frame, the mounting frame 6', and the plurality of pins 7'
- the contour surface ensures that these components are wrapped in the radial outer surface of the casing 8', thereby ensuring the integrity and regularity of the appearance of the motor 100' and its insulation from the outside.
- the axial end faces of the casing 8' (also called the tooth wrapping surface 81') are not regular planes, but a stepped structure with high outside and low inside, as shown in Figs. 9 and 12, which are located in diameter
- the part that protrudes to the outside is recorded as the outer end face, which is relatively small in size; the part that is recessed on the inner side is marked as the inner end face, and the size is relatively large, as shown in Figs. 9 and 12.
- the two inner end faces (that is, the axial end faces on the radially inner side of the casing 8') are flush with the axial end faces of the stator core 11' or do not exceed the axial end faces of the stator core 11' (ie The two sets of tooth surfaces 1121') of the stator iron core 11') facilitate more precise and effective control of the axial air gap between the tooth surface and the permanent magnet.
- the housing 8' is provided with a stepped surface 84' at one axial end close to the plurality of pins 7', and the plurality of pins 7'penetrate the stepped surface 84' and protrude from the stepped surface along the axial direction of the stator assembly 1' 84', as shown in Figure 13.
- a stepped surface 84' is provided at the axial end of the housing 8'close to the plurality of pins 7', so that the plurality of pins 7'penetrate the stepped surface 84' and protrude from the stepped surface 84' in the axial direction of the stator assembly 1' , Can provide favorable space for the connection or installation of the pin 7'and other conductive parts.
- the motor 100' further includes: two end encapsulation covers, which are coaxially fixedly mounted on the axial ends of the casing 8', respectively, for encapsulating the motor 100', and are provided There is a shaft hole for the corresponding shaft to extend.
- the end encapsulation covers are installed at the axial ends of the casing 8'to ensure the integrity of the motor 100’ and effectively protect the internal structure of the motor 100’; and the end encapsulation cover is provided with a shaft hole for use In order to extend the corresponding rotating shaft, it is ensured that the power of the motor 100' can be output.
- a step is formed between the outer wall surface of the circular boss and the outer wall surface of the casing 8', and the end encapsulation cover can be provided with a cover edge to fit the step, so that the outer contour of the motor 100' is relatively regular.
- the end packaging cover on the side of the first rotor assembly 21' is marked as the first end packaging cover 101'
- the end packaging cover on the side of the second rotor assembly 22' is marked as the second end packaging cover 102 '.
- end packaging cover is provided with a bearing chamber 1021' for accommodating the corresponding axially outward bearing of the rotating shaft assembly, as shown in FIG. 12.
- Bearing chambers 1021' are provided on the two end packaging covers to support the axially outward bearings of the two rotating shaft assemblies (that is, the bearings relatively close to the outside of the motor 100'), which can further enhance the two rotating support parts. Support and limit, so as to further improve the reliability of the use of the two rotating shaft components.
- the bearing chamber 1021' is integrated on the end encapsulation cover, so that the end encapsulation cover also functions as a bearing cover. Compared with the solution of additionally providing a bearing cover and then fixing it on the end encapsulation cover, it reduces The number of parts simplifies the assembly process and reduces production costs.
- the middle part of the end encapsulation cover is first recessed to form a sinking platform, and the bottom wall of the sinking platform is partially reversed to form a boss.
- the space defined by the boss is the bearing chamber 1021' .
- the inside of the disk body of the rotor disk corresponding to the end encapsulation cover is constructed in a conical slope structure, as shown in FIG. 14, to fit the end encapsulation cover. In this way, the internal space of the hollow channel can be reasonably used, which is beneficial to further reduce the axial size of the motor 100'.
- the two outer end surfaces of the casing 8' are respectively provided with circular bosses coaxial with the stator assembly 1', as shown in FIG. 13, the edge portion of the end encapsulation cover is provided with an annular groove 1022' , The circular boss is embedded in the corresponding annular groove 1022', as shown in FIG. 8.
- the two outer end faces of the casing (that is, the radially outer axial end faces of the casing 8') are provided with two circular bosses, the two circular bosses are coaxially connected with the stator assembly, and the ends are encapsulated
- the edge of the cover is provided with an annular groove 1022', and the circular boss is inserted into the annular groove 1022' to realize the stop fitting, and then the end encapsulation cover can be assembled in place.
- the structure is simple and the assembly is convenient.
- the circular boss on the side of the first rotor assembly 21' is denoted as the first circular boss 82'
- the circular boss on the side of the second rotor assembly 22' is denoted as the second circular boss 83'.
- the step surface 84' can be arranged on the inner side wall of one of the circular bosses, as shown in Fig. 13, to further simplify the structure of the casing 8'.
- the motor 100' further includes an electric control board 9'built in between the rotor assembly on either side of the motor 100' and the end encapsulation cover.
- the arrangement of the electric control board 9' is conducive to the realization of the automatic control of the motor 100'; the electric control board 9'is arranged on either side of the motor 100' and is located between the rotor assembly on that side and the end encapsulation cover, which guarantees The stability of the electric control board 9'is improved, and the circuit output of the electric control board 9'is facilitated.
- the fan provided by the embodiment of the second aspect of the present application includes: at least one motor 100' as in any one of the embodiments of the first aspect and two fans, and the two fans are connected to the motor 100' respectively.
- the two rotating shaft components are fixedly connected, and the two fans rotate coaxially and independently of each other.
- the fan provided by the embodiment of the second aspect of the present application includes the motor 100' of any one of the embodiments of the first aspect, so it has compact structure, strong practical functionality, convenient installation, small axial size, low manufacturing cost, etc. Significant advantages.
- the fan connected to the first shaft assembly 31' is referred to as the first fan 100', and the fan connected to the second shaft assembly 32' is referred to as the second fan 300'.
- the extending direction of the central axis of FIG. 8 is referred to as "axial"
- the direction surrounding the central axis is referred to as “circumferential”
- the direction perpendicular to the central axis is referred to as "radial”.
- a motor 100' includes: a stator assembly 1', two rotor assemblies (ie, a first rotor assembly 21' and a second rotor assembly 22'), and two rotating shaft assemblies (ie, a first rotor assembly).
- the stator assembly 1' includes a stator core 11' and two sets of windings (ie, a first winding 121' and a second winding 122').
- the stator core 11' consists of a stator yoke 111' and a plurality of detachable stators.
- the tooth 112' is connected to form a whole with a radial hollow and tooth extension on both sides in the axial direction.
- the radial hollow of the stator provides a favorable axial installation space for the bearing of the motor 100'.
- the first winding 121' and the second winding 122' are respectively Wound on the stator tooth body 1123' on both sides of the stator axial direction, and the first winding 121' and the second winding 122' can act on the motor 100' independently of each other.
- the stator yoke 111' is provided with a plurality of slots (i.e., slots 1111') on the radially outer side for the matching installation of the stator teeth 112’; the stator yoke portion 111’ is provided with round holes (i.e. through holes) on the radially inner side. 1112') for partially or fully receiving the first rotation support portion 312' of the first rotation shaft assembly 31' and the second rotation support portion 322' of the second rotation shaft assembly 32'.
- slots 1111' i.e., slots 1111'
- round holes i.e. through holes
- a single stator tooth portion 112' has at least one tooth body 1123' and at least one tooth surface 1121'. After the multiple stator tooth portions 112' and the stator yoke 111' are matched and installed, the stator yoke 111' has two axial sides on both sides.
- Group tooth body 1123' and two groups of tooth surfaces 1121', and a group of tooth surfaces 1121' interacting with the same rotor assembly are all in a plane and perpendicular to the axis; stator tooth 112' and stator yoke 111' are installed in cooperation
- a limit step 1122' is designed on the surface of the stator to abut against the axial end surface of the stator yoke 111' to define the axial relative position of the stator tooth 112' and the stator yoke 111'.
- the first rotor assembly 21' and the second rotor assembly 22' are coaxially and rotatably placed on both sides of the stator assembly 1'facing away from each other, forming an axial air gap with the stator assembly 1'.
- the first rotor assembly 21' includes a first rotor disc 211' and a first permanent magnet 212'
- the second rotor assembly 22' includes a second rotor disc 221' and a second permanent magnet 222'
- the first rotor assembly 21' and the second rotor assembly 22' The two rotor assemblies 22' can rotate independently of each other.
- the structure of the first rotor disk 211' and the second rotor disk 221' are roughly the same. Take one of the rotor disks as an example for description.
- the radially outer side of the rotor disk is a disk-shaped structure, and the radially inner side is a disk-shaped plane or cone.
- the inclined surface structure provides a favorable space for the installation of other parts.
- the radially outer side of the rotor disc is a disc-shaped structure, and is fixedly connected with the corresponding rotating shaft through a threaded connection.
- the first permanent magnet 212' and the second permanent magnet 222' are circular or fan-shaped pie-shaped structures, and are evenly distributed in the circumferential direction on the axial surface of the disc-shaped structure of the rotor disk to form an axial magnetic flux;
- the N and S poles are arranged alternately or in Halbach arrangement.
- the first rotating shaft assembly 31' and the second rotating shaft assembly 32' are coaxially fixedly connected with the first rotor assembly 21' and the second rotor assembly 22', respectively, and output coaxially from the same side of the motor 100'.
- the first rotating shaft assembly 31 'And the second rotating shaft assembly 32' can rotate independently of each other.
- the first rotating shaft assembly 31' includes a solid shaft and two bearings. The two bearings are coaxially arranged on the radially outer side of the solid shaft and are placed on both axial sides of the first rotor assembly 31 to form a first rotating support portion. 312';
- the second rotating shaft assembly 32' includes a hollow shaft and two bearings.
- the two bearings are coaxially arranged on the radially outer side of the hollow shaft and are placed on both sides of the axial direction fixedly connected to the second rotor assembly 32 to form a second Rotation support portion 322'.
- the first rotating support portion 312' of the first rotating shaft assembly 31' and the second rotating support portion 322' of the second rotating shaft assembly 32' are placed on both sides of the motor 100' in the axial direction, and are partially or fully accommodated in the stator assembly 1' Radial hollow inside.
- the motor 100' also includes two bearing covers (namely, the first bearing cover 41' and the second bearing cover 42'), the first bearing cover 41' and the second bearing cover 42' are coaxially fixedly connected with the stator assembly 1', and The round hole slot of the stator yoke 111' that faces away from the opening and is arranged outwards is used to support the first rotating shaft assembly 31' and the second rotating shaft assembly 32' close to the bearings inside the motor 100'.
- the first bearing cap 41' and the second bearing cap 42' are thin-walled cylindrical structures. The first bearing cap 41' is taken as an example for specific description.
- the outer wall 411' of the first bearing cap 41' and the stator yoke 111' have a diameter
- the inner wall 412' of the first bearing cover 41' is matched with the bearing of the first rotating shaft assembly 31'; the radially outer side of the first bearing cover 41' is designed with a small flange 413', and the flange A plurality of small notches 414' are uniformly distributed in the radial direction on the 413' for non-rotation connection.
- the motor 100' also includes a first insulating frame 51' and a second insulating frame 52' mounted on the tooth body 1123' of the stator teeth, and a mounting frame fixed to the first insulating frame 51' or the second insulating frame 52' 6'and a plurality of pins 7'inserted on the mounting frame 6'.
- the lead wires of the first winding 121' and the second winding 122' are fixedly connected to a plurality of pins 7', thereby leading the lead ends of the first winding 121' and the second winding 122' to a fixed and stable conductive carrier .
- the mounting frame 6' is an arc-shaped strip structure coaxial with the stator, and the mounting frame 6'and a plurality of pins 7'are located on the radially outer side of the first rotor assembly 21' and the second rotor assembly 22'.
- the motor 100' also includes a plastic casing 8', which holds the stator assembly 1', the first insulating frame 51' and the second insulating frame 52', the mounting frame 6', a plurality of pins 7', and the first The bearing cover 41' and the second bearing cover 42' are fixedly connected as a whole.
- the outer diameter of the plastic casing 8' is larger than the maximum radial outer contour surface formed by the stator assembly 1', the first insulating frame 51', the second insulating frame 52', the mounting frame 6', and the plurality of pins 7';
- the wrapping surfaces of the stator teeth 112' on both sides are flush or do not exceed the two sets of tooth surfaces 1121' of the stator assembly 1';
- the plastic housing 8' is provided with a step surface 84' on the side where the pin 7'is located, and the pin 7'exposes the step surface 84' A certain distance provides space for the connection or installation of the pin 7'and other conductive parts.
- the motor 100' also includes a first end encapsulation cover 101' and a second end encapsulation cover 102'.
- the first end encapsulation cover 101' and the second end encapsulation cover 102' respectively pass through the first rotating shaft 311' and the second end encapsulation cover.
- the two rotating shafts 321' are coaxially fixedly mounted on the two axial ends of the plastic casing 8', respectively, for supporting the first rotating shaft assembly 31' and the second rotating shaft assembly 32' to be close to the bearings outside the motor 100' and encapsulating the motor.
- the outside of the second end encapsulation cover 102' is designed with a stop ( That is, the annular groove 1022'), the radially inner side is designed with a bearing chamber 1021' that sinks toward the inner side of the main body of the base, so that the bearing is sunk into the inner side of the second end encapsulation cover 102' to reduce the overall shaft of the motor 100' To size.
- the motor 100' may further include an electric control board 9', and the electric control board 9'is built in between the first rotor assembly 21' and the first end encapsulation cover 101' or the second rotor assembly 22' on either side of the motor 100' And the second end encapsulation cover 102'.
- the motor 100' may further include a support bearing 110', which is coaxially arranged between the output end of the hollow shaft and the solid shaft to increase the support rigidity of the first shaft assembly 31' and the second shaft assembly 32' .
- a fan includes: a motor 100', a first fan 200', and a second fan 300'.
- the first fan 200' and the second fan 300' are respectively connected with the first rotating shaft assembly 31' and the first rotating shaft assembly 31' and the second output from both sides of the motor 100'.
- the two rotating shaft assemblies 32' are coaxially fixedly connected, and the first fan 200' and the second fan 300' rotate coaxially and independently of each other.
- the above-mentioned motor and fan have significant advantages such as compact structure, strong practical functionality, convenient installation, small axial size, and low manufacturing cost.
- a motor which includes:
- the stator assembly includes a stator core and two sets of independent windings.
- a hollow channel is provided in the radial middle of the stator core, and both axial ends of the stator core are provided with protrusions extending toward both sides in the axial direction.
- the two sets of said windings are respectively wound on the two sets of said stator teeth;
- Two mutually independent rotor assemblies are arranged back and forth coaxially on both axial sides of the stator assembly, and form an axial air gap with the stator assembly, and the two rotor assemblies are configured to rotate independently of each other;
- Two mutually independent rotating shaft assemblies are coaxially connected with the two rotor assemblies, and protrude in the same direction away from the stator core along the axial direction of the motor, part of the two rotating shaft assemblies All are placed in the hollow channel.
- the rotating shaft assembly includes a rotating shaft, wherein the rotating shaft of one rotating shaft assembly is a hollow shaft, and the rotating shaft of the other rotating shaft assembly extends through the hollow shaft and is suitable for rotating relative to the hollow shaft.
- the shaft of another shaft assembly includes a connecting section and an extension section connected to the connecting section.
- the outer diameter of the connecting section is equal to the outer diameter of the hollow shaft.
- the hollow channels are arranged in the axial direction, and the extension section extends through the hollow shaft.
- the shaft sleeve is arranged in the hollow channel, and a part of the two rotating shafts is inserted into the shaft sleeve.
- the supporting bearing is coaxially arranged between the output end of the hollow shaft and the other rotating shaft.
- the stator core includes a stator yoke and a plurality of stator teeth arranged in a circumferential direction of the stator yoke, and the plurality of stator teeth are assembled with the stator yoke to form the stator core, And a plurality of the stator teeth protrude to the two axial sides of the stator yoke to form two sets of the stator teeth, and the two sets of windings are respectively wound on the two axial sides of the stator yoke. On the stator teeth.
- the radial middle part of the stator yoke is provided with a through hole adapted to the shaft sleeve of the motor, and the through hole constitutes a part of the hollow passage of the stator core;
- the radially outer side wall of the stator yoke portion is provided with a locking slot, and a part of the stator tooth portion is embedded in the locking slot, so that the stator tooth portion is snap-fitted with the stator yoke portion.
- stator teeth includes at least one stator tooth
- stator tooth includes a tooth body and a tooth surface connected to an axial end of the tooth body and located on one axial side of the stator yoke, any All tooth surfaces of a set of the stator teeth are located in the same plane and perpendicular to the axis of the stator yoke.
- the stator tooth portion includes two stator teeth, and a limiting step is provided on the tooth body of the stator tooth portion, and the limiting step abuts against the stator yoke portion and is used to restrict the stator tooth portion from facing each other.
- the stator yoke moves axially.
- the rotor assembly includes a rotor disc coaxially connected with the rotating shaft assembly and permanent magnets mounted on the rotor disc.
- the rotor disc includes the outer part of the disc body and the outer part of the disc body from the outside to the inside in the radial direction. Inside the connected disc body, wherein the outside of the disc body is a disc-shaped structure, and the inside of the disc body is a disc-shaped structure or a conical structure.
- the rotating shaft assembly includes a rotating shaft, and the rotor disc is coaxially connected with the rotating shaft;
- the rotor disc and the rotating shaft are an integral structure formed by injection molding or welding, or the rotor disc and the rotating shaft are threaded or interference fit.
- the permanent magnet has a circular or fan-shaped pie-shaped structure, the number of the permanent magnet is multiple, and the multiple permanent magnets are evenly distributed in the circumferential direction on the axial surface of the rotor disk facing the stator yoke, forming a shaft To magnetic flux; N poles and S poles of two adjacent permanent magnets are alternately arranged or arranged in a Halbach array.
- the rotating shaft assembly includes a rotating shaft and a rotating support part, the rotating support part is accommodated in the shaft sleeve and located between the shaft sleeve and the rotating shaft, and is used to support the rotating shaft and make the rotating shaft suitable for When rotating relative to the shaft sleeve, the rotating shaft is coaxially connected with the rotor assembly.
- the rotation support part includes at least one bearing.
- the number of the bearings is multiple, and the multiple bearings are distributed on the same axial side of the rotor assembly at intervals along the length direction of the rotating shaft.
- the outer side wall of the sleeve is matched with the hollow channel
- the inner side wall of the sleeve is matched with the bearing
- the sleeve and the hollow channel are matched with each other through a concave-convex structure to restrict the opposite of the sleeve
- the stator assembly moves axially.
- the concave-convex structure includes a flange arranged on the outer side wall of the shaft sleeve and a groove arranged on the wall surface of the hollow channel;
- the flange is also provided with at least one notch.
- a partition is provided on the inner side wall of the shaft sleeve, and the partition is used to separate the two rotation support parts.
- a mounting frame which is fixedly connected to the insulating frame
- a plurality of pins are inserted into the mounting frame, and the lead wires of the two sets of windings are fixedly connected to the plurality of pins.
- the mounting frame is an arc-shaped strip structure coaxial with the stator assembly, and the mounting frame and the plurality of pins are located on the radially outer side of the rotor assembly.
- a casing, the casing is an injection molded body, and the insulating frame, the mounting frame, a plurality of the pins and the shaft sleeve of the motor are fixedly connected into a whole, and the outer diameter of the casing Larger than the maximum radial outer contour surface formed by the stator assembly, the insulating frame, the mounting frame, and the plurality of pins, the axial end surfaces of the casing both include an inner end surface and the inner end surface.
- the two outer end surfaces of the casing are respectively provided with circular bosses coaxial with the stator assembly.
- the housing is provided with a stepped surface at one axial end close to the plurality of pins, and the plurality of pins penetrate the stepped surface and protrude from the stepped surface along the axial direction of the stator assembly.
- Two end encapsulation covers are coaxially fixedly mounted on the two axial ends of the casing, respectively, for encapsulating the motor, and are provided with a shaft hole through which the rotating shaft assembly extends.
- An electric control board is built-in between the rotor assembly on either side of the motor and the end encapsulation cover.
- Two shaft sleeve encapsulation covers are fixedly connected to the axial ports of the shaft sleeve for restricting the axial movement of the rotating shaft assembly.
- a fan which includes:
- Two fans are respectively fixedly connected with the two rotating shaft assemblies of the motor, and the two fans rotate coaxially and independently of each other.
- a motor which includes:
- the stator assembly includes a stator core and two sets of independent windings.
- a hollow channel is provided in the radial middle of the stator core, and both axial ends of the stator core are provided with protrusions extending toward both sides in the axial direction.
- the two sets of said windings are respectively wound on the two sets of said stator teeth;
- Two mutually independent rotor assemblies are arranged back and forth coaxially on both axial sides of the stator assembly, and form an axial air gap with the stator assembly, and the two rotor assemblies are configured to rotate independently of each other;
- the rotating shaft assembly includes a rotating shaft and a rotating support portion, the rotating support portion is at least partially accommodated in the hollow channel and sleeved on the rotating shaft, for supporting the rotating shaft and making
- the rotating shaft is adapted to rotate relative to the stator core, and the two rotating shafts are respectively coaxially connected with the two rotor assemblies, and protrude in the same direction away from the stator core along the axial direction of the motor. stretch.
- the rotation support part includes at least one bearing.
- the number of the bearings is multiple, and the multiple bearings are distributed on both sides of the corresponding rotor assembly at intervals along the length direction of the rotating shaft.
- Two bearing caps are sleeved in the hollow channel and fixedly connected to the stator core, and the two bearing caps are arranged opposite to each other for supporting the corresponding axially inward shaft components Bearing.
- the bearing cover is adapted to the shape of the bearing, and the bearing is accommodated in the bearing cover and supported by the bearing cover.
- the open end of the bearing cover is provided with flanges extending radially outward.
- At least one notch is provided on the flange.
- the rotating shaft of one of the rotating shaft components is a hollow shaft, and the rotating shaft of the other rotating shaft component extends through the hollow shaft and is suitable for rotating relative to the hollow shaft.
- the shaft of another shaft assembly includes a connecting section and an extension section connected to the connecting section.
- the outer diameter of the connecting section is equal to the outer diameter of the hollow shaft.
- the hollow channels are arranged in the axial direction, and the extension section extends through the hollow shaft.
- the supporting bearing is coaxially arranged between the output end of the hollow shaft and the other rotating shaft.
- the stator core includes a stator yoke and a plurality of stator teeth arranged in a circumferential direction of the stator yoke, and the plurality of stator teeth are assembled with the stator yoke to form the stator core, And a plurality of the stator teeth protrude to the two axial sides of the stator yoke to form two sets of the stator teeth, and the two sets of windings are respectively wound on the two axial sides of the stator yoke. On the stator teeth.
- the radial middle of the stator yoke is provided with a through hole adapted to the bearing cover of the motor, and the through hole constitutes a part of the hollow passage of the stator core;
- the radially outer side wall of the stator yoke portion is provided with a locking slot, and a part of the stator tooth portion is embedded in the locking slot, so that the stator tooth portion is snap-fitted with the stator yoke portion.
- stator teeth includes at least one stator tooth
- stator tooth includes a tooth body and a tooth surface connected to an axial end of the tooth body and located on one axial side of the stator yoke, any All tooth surfaces of a set of the stator teeth are located in the same plane and perpendicular to the axis of the stator yoke.
- the stator tooth portion includes two stator teeth, and a limiting step is provided on the tooth body of the stator tooth portion, and the limiting step abuts against the stator yoke portion and is used to restrict the stator tooth portion from facing each other.
- the stator yoke moves axially.
- the rotor assembly includes a rotor disk coaxially connected with the corresponding rotating shaft and permanent magnets mounted on the rotor disk.
- the rotor disk includes the outer portion of the disk body and the permanent magnets mounted on the rotor disk along its radial direction from the outside to the inside.
- the inside of the externally connected disc body wherein the outside of the disc body is a disc-shaped structure, and the inside of the disc body is a disc-shaped structure or a conical structure.
- the rotor disc and the corresponding rotating shaft are an integral structure formed by injection molding or welding; or
- the rotor disc is threaded or interference fit with the rotating shaft.
- the permanent magnets have a circular or fan-shaped pie-shaped structure, the number of permanent magnets is multiple, and the multiple permanent magnets are evenly distributed on the axial surface of the rotor disk facing the stator yoke in the circumferential direction, forming a shaft To magnetic flux; N poles and S poles of two adjacent permanent magnets are arranged alternately or arranged in a Halbach array.
- a mounting frame which is fixedly connected to the insulating frame
- a plurality of pins are inserted into the mounting frame, and the lead wires of the two sets of windings are fixedly connected to the plurality of pins.
- the mounting frame is an arc-shaped strip structure coaxial with the stator assembly, and the mounting frame and the plurality of pins are located on the radially outer side of the rotor assembly.
- the housing is an injection molded body, and the insulating frame, the mounting frame, the plurality of pins, and the two bearing covers of the motor are fixedly connected into a whole, and the housing
- the outer diameter is larger than the maximum radial outer contour surface formed by the stator assembly, the insulating frame, the mounting frame, and a plurality of the pins.
- the housing is provided with a stepped surface at one axial end close to the plurality of pins, and the plurality of pins penetrate the stepped surface and protrude from the stepped surface along the axial direction of the stator assembly.
- Two end encapsulation covers are coaxially fixedly mounted on the two axial ends of the casing, respectively, for encapsulating the motor, and are provided with shaft holes through which the corresponding rotating shafts extend.
- the end packaging cover is provided with a bearing chamber for accommodating the corresponding bearing axially outward of the rotating shaft assembly.
- the two outer end faces of the casing are respectively provided with circular bosses coaxial with the stator assembly, the edge portion of the end encapsulation cover is provided with an annular groove, and the circular bosses are embedded in the corresponding ⁇ said annular groove.
- An electric control board is built-in between the rotor assembly on either side of the motor and the end encapsulation cover.
- a fan which includes:
- Two fans are respectively fixedly connected with the two rotating shaft assemblies of the motor, and the two fans rotate coaxially and independently of each other.
- the motor provided by the present application utilizes the cooperation of a stator assembly with two mutually independent rotor assemblies and two mutually independent rotating shaft assemblies to realize the dual power independent output of one motor, and can drive two fans to The respective speed and direction of rotation rotate independently without interfering with each other.
- at least one stator assembly is omitted, the axial size of the fan is reduced, and the cost of the fan is reduced; compared with a single-axis motor and
- the two fans can be rotated at any speed and any rotation, which is practical and functional, which significantly improves the diversification of the fan’s functionality and eliminates the gear mechanism. Reduce the difficulty of product manufacturing and installation.
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Abstract
本申请提供了一种电机及风机,电机包括:定子组件,包括定子铁芯和两组相互独立的绕组,定子铁芯的径向中部设有中空通道,定子铁芯的轴向两端部设有向其轴向两侧凸伸的定子齿,两组绕组分别绕设在两组定子齿上;两个相互独立的转子组件,背向同轴设置在定子组件的轴向两侧,并与定子组件形成轴向气隙,且两个转子组件被配置为相互独立旋转;和两个相互独立的转轴组件,分别与两个转子组件同轴连接,且沿电机的轴向朝远离定子铁芯的同侧方向凸伸,两个转轴组件的一部分均置于中空通道内。本申请实现了一个电机的双动力独立输出,具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低等显著优点。
Description
本申请要求于2019年8月26日提交中国专利局、申请号为201910792794.2、申请名称为“电机及风机”、于2019年8月26日提交中国专利局、申请号为201921394369.X、申请名称为“电机及风机”、于2019年8月26日提交中国专利局、申请号为201910792792.3、申请名称为“电机及风机”、于2019年8月26日提交中国专利局、申请号为201921393592.2、申请名称为“电机及风机”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及风机领域,具体而言,涉及一种电机及包括该电机的风机。
随着生活质量需求的不断提高,风机也被提出更多的功能要求,比如带有两个同轴的风扇,采用相应的转速和转向配合使用。当前多采用的技术为两种:一种是两个电机背向轴伸,两轴分别连接两个风扇,成本较高,且轴向占用空间较大;另一种是采用一个单轴电机和齿轮机构相配,来实现两端轴伸,并实现与两轴连接的风扇以固定配比转速和转向旋转,其功能性的多样化受到限制,且制造安装困难。
发明内容
为了解决上述技术问题至少之一,本申请的一个目的在于提供一种电机。
本申请的另一个目的在于提供一种包括上述电机的风机。
为了实现上述目的,本申请第一方面的技术方案提供了一种电机,包括:定子组件,包括定子铁芯和两组相互独立的绕组,所述定子铁芯的径向中部设有中空通道,所述定子铁芯的轴向两端部设有向其轴向两侧凸伸的定子齿,两 组所述绕组分别绕设在两组所述定子齿上;两个相互独立的转子组件,背向同轴设置在所述定子组件的轴向两侧,并与所述定子组件形成轴向气隙,且两个所述转子组件被配置为相互独立旋转;和两个相互独立的转轴组件,分别与两个所述转子组件同轴连接,且沿所述电机的轴向朝远离所述定子铁芯的同侧方向凸伸,两个所述转轴组件的一部分均置于所述中空通道内。
本申请第一方面的技术方案提供的电机,利用一个定子组件与两个相互独立的转子组件以及两个相互独立的转轴组件的配合,实现了一个电机的双动力独立输出,可以驱动两个风扇以各自的转速和转向独立旋转,互不干扰。相较于两个电机背向轴伸分别连接两个风扇的方案而言,至少省去了一个定子组件,缩小了风机的轴向尺寸,降低了风机的成本;相较于一个单轴电机和齿轮机构相配合来实现两端轴伸的方案而言,实现了两个风扇以任意转速和任意转向旋转,实用功能性强,显著提升了风机功能性的多样化,也省去了齿轮机构,降低了产品的制造安装难度。
具体而言,电机包括定子组件、两个相互独立的转子组件和两个相互独立的转轴组件。定子组件包括定子铁芯和两组相互独立的绕组;定子铁芯的轴向两端部设有定子齿,两组定子齿沿定子铁芯的轴向朝两侧凸伸,供两组绕组缠绕,保证两组绕组可以相互独立作用于电机;定子铁芯的径向中部设有中空通道,为转轴组件的安装提供有利的轴向安装空间,使得两个转轴组件的一部分可以插装于中空通道内,从而进一步缩短电机的轴向尺寸。两个转子组件背向同轴设置在定子组件的轴向两侧,分别朝向两组绕组,与定子组件形成轴向气隙,保证两个转子组件互不干扰,实现相互独立旋转。两个转轴组件相互独立,且分别与对应的转子组件同轴连接,分别与对应的转子组件同步旋转。其中,两个转轴组件向电机的轴向同侧凸伸,使得电机的轴向一端可以输出两种互不干扰的动力,相较于向电机的轴向两侧凸伸,有利于缩短电机的输出端的轴向距离。由于定子组件的两组绕组相互独立,两个转子组件相互独立,且两个转轴组件相互独立,因而电机的轴向两端可以输出两个相互独立的转矩,相当于利用一个电机实现了两个相互独立的电机的功能,故而具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低的显著优点。
另外,本申请提供的上述技术方案中的电机还可以具有如下附加技术特 征:
在上述技术方案中,其中一个所述转轴组件的转轴为空心轴,另一个所述转轴组件的转轴穿过所述空心轴伸出,且适于相对所述空心轴旋转。
转轴组件包括转轴,其中一个转轴组件的转轴为空心轴,则另一个转轴组件的转轴可以穿过该空心轴伸出,从而实现两个转轴组件的同向凸伸,使得电机的轴向一端可以同时连接两个风扇或者其他部件。进一步地,另一个转轴组件的转轴为实心轴,这有利于提高该转轴的强度。当然,另一个转轴组件的转轴也可以为空心轴。
在上述技术方案中,另一个所述转轴组件的转轴包括连接段和与所述连接段相连的延伸段,所述连接段的外径与所述空心轴的外径相等且所述连接段与所述空心轴沿所述中空通道的轴线方向排布,所述延伸段穿过所述空心轴伸出。
另一个转轴组件的转轴包括连接段和延伸段,连接段的外径与空心轴的外径相等,且连接段与空心轴沿中空通道的轴线方向排布,则两个转轴装配后在中空通道内的部分的外轮廓保持齐平,使得产品的结构较为规整,便于加工成型,也便于装配;同时使得该转轴连接转子组件的部分(即连接段)相对较粗,提高了该转轴的强度,有利于提高该转轴的使用可靠性;也便于两个转轴采用相同型号的轴承等支撑结构进行支撑,以提高电机的可靠性和稳定性。
在一些技术方案中,所述电机还包括:轴套,设于所述中空通道内,且两个所述转轴组件的一部分插装于所述轴套内。
在中空通道内设置轴套,将两个转轴组件的一端均插装于轴套内,轴套可以对两个转轴组件起到良好的限位作用,保证了两个转轴组件与定子组件之间互不干扰,并降低了转轴组件发生晃动、倾斜、移位等情况的概率,从而提高两个转轴组件的同轴度,有利于提高电机的使用可靠性,同时也有利于提高转轴组件的装配精度,安装更加方便。具体地,两个转轴组件的转轴可以嵌套设置,其中一个转轴组件的一端插装于轴套内,另一端向电机的轴向一侧凸伸;另一个转轴组件的一端插装于轴套内,另一端穿过上述转轴组件向电机的轴向同侧凸伸,且两个转轴组件分别与两个转子组件同轴连接,分别与对应的转子组件同步旋转。
在上述任一技术方案中,所述转轴组件包括转轴和旋转支撑部,所述旋转支撑部容纳于所述轴套内,并位于所述轴套与所述转轴之间,用于支撑所述转轴且使所述转轴适于相对所述轴套旋转,所述转轴与所述转子组件同轴连接。
转轴组件包括转轴和旋转支撑部,旋转支撑部容纳于轴套内,并位于轴套与转轴之间,保证转轴位置的稳定性以及旋转过程中的稳定性;转轴与转子组件同轴连接,实现了电机的动力输出功能。
在上述技术方案中,所述旋转支撑部包括至少一个轴承。
旋转支撑部包括至少一个轴承,利用轴承来支撑转轴,可以显著提高转轴的使用可靠性。当然,旋转支撑部并不局限于轴承,也可以是其他结构。比如:在轴套的内侧壁沿周向设置多个滚针,利用多个滚针来支撑转轴;或者,在轴套的内侧壁沿轴向设置多个连接环,连接环的内侧壁为光滑面,利用多个连接环来支撑转轴。
在上述技术方案中,所述轴承的数量为多个,多个所述轴承沿所述转轴的长度方向间隔分布在所述转子组件的轴向同侧。
沿转轴的长度方向间隔设置多个轴承,能够对转轴的多个部位进行支撑,有利于提高旋转支撑部对转轴的支撑可靠性,从而进一步提高转轴组件的使用可靠性;且多个轴承位于对应的转子组件的轴向同侧,便于多个轴承完全容纳在轴套内,则多个轴承与电机两端的端盖没有配合关系,因而只需集中保证轴套的加工精度即可,而不需要保证端盖的加工精度,从而有利于降低制造成本。进一步地,轴承的数量为两个,两个轴承既能有效提高对转轴组件的支撑可靠性,还便于容纳在轴套内,并减少部件数量,节约生产成本。
在上述技术方案中,所述轴套的外侧壁与所述中空通道相配合,所述轴套的内侧壁与所述轴承配合,且所述轴套与所述中空通道通过凹凸结构配合,以限制所述轴套相对所述定子组件轴向移动。
轴套的外侧壁与中空通道相配合,轴套的内侧壁与轴承配合,保证轴套位置的稳定性;且轴套与中空通道通过凹凸结构配合,可以防止轴套相对定子组件沿轴向移动,从而进一步提高轴套的稳定性。
在上述技术方案中,所述凹凸结构包括设置在所述轴套的外侧壁上的法兰和设置在所述中空通道的壁面上的凹槽;其中,所述法兰还设有至少一个缺口。
在轴套的外侧壁上设置法兰,相应在中空通道的壁面上设置凹槽,则装配时使法兰嵌入凹槽中,即可实现轴套的装配定位,限制轴套沿定子组件的轴向移动。其中,法兰还设有至少一个缺口,缺口可以与后期注塑的机壳凹凸配合,从而防止轴套相对于定子组件周向旋转,进而提高轴套的稳定性。进一步地,缺口的数量为多个,多个缺口沿法兰的周向间隔分布。
在上述技术方案中,所述轴套的内侧壁上设有分隔部,所述分隔部用于使两个所述旋转支撑部间隔分开。
在轴套的内侧壁上设置分隔部,利用分隔部可以将两个转轴组件的旋转支撑部间隔分开,从而有效防止两个转轴组件相互干涉,进一步提高了两个转轴组件的使用可靠性。比如,分隔部为沟槽,用于安装环形挡圈或者挡板;分隔部也可以为环形凸起或者一体成型的隔板。
在上述任一技术方案中,所述电机还包括:两个轴套封装盖,固接于所述轴套的轴向端口处,用于限制所述转轴组件轴向移动。
在轴套的轴向两个端口处安装轴套封装盖,可以防止位于轴套内的旋转支撑部轴向移动,从而起到限制两个转轴组件发生轴向移动的作用,进一步提高了电机的使用可靠性。其中,轴套封装盖可以通过螺钉等紧固件与轴套固定连接。
在另一些技术方案中,所述转轴组件包括转轴和旋转支撑部,所述旋转支撑部至少部分容纳于所述中空通道内并套设在所述转轴上,用于支撑所述转轴且使所述转轴适于相对所述定子铁芯旋转,两个所述转轴分别与两个所述转子组件同轴连接,且沿所述电机的轴向朝远离所述定子铁芯的同侧方向凸伸。
转轴组件包括转轴和旋转支撑部,旋转支撑部部分或全部容纳于中空通道内,并套设在转轴上,保证转轴位置的稳定性以及旋转过程中的稳定性;转轴与转子组件同轴连接,实现了电机的动力输出功能。
在上述技术方案中,所述旋转支撑部包括至少一个轴承。
旋转支撑部包括至少一个轴承,利用轴承来支撑转轴,可以显著提高转轴的使用可靠性。当然,旋转支撑部并不局限于轴承,也可以是其他结构。比如:在中空通道的内侧壁沿周向设置多个滚针,利用多个滚针来支撑转轴;或者,在中空通道的内侧壁沿轴向设置多个连接环,连接环的内侧壁为光滑面,利用 多个连接环来支撑转轴。
在上述技术方案中,所述轴承的数量为多个,多个所述轴承沿所述转轴的长度方向间隔分布在所述转子组件的轴向两侧。
沿转轴的长度方向间隔设置多个轴承,能够对转轴的多个部位进行支撑,有利于提高旋转支撑部对转轴的支撑可靠性,从而进一步提高转轴组件的使用可靠性;且多个轴承分布在对应的转子组件的轴向两侧,可以分散对转轴的多个部位进行支撑,从而提高对转轴的支撑可靠性,显著降低转轴发生倾斜等情况的风险,从而提高电机的使用可靠性。进一步地,轴承的数量为两个,两个轴承既能有效提高对转轴组件的支撑可靠性,还可以减少部件数量,节约生产成本。
在上述技术方案中,所述电机还包括:两个轴承盖,套装在所述中空通道内并与所述定子铁芯固定连接,且两个所述轴承盖相背设置,用于分别支撑对应的所述转轴组件轴向靠内的所述轴承。
在中空通道内设置两个轴承盖,对两个转轴组件轴向靠内的轴承(即相对靠近电机内部的轴承)进行支撑,由于两个轴承盖相背设置,可以对两个旋转支撑部起到良好的限位作用,保证了两个转轴组件与定子组件之间互不干扰,并降低了转轴组件发生晃动、倾斜、移位等情况的概率,有利于提高电机的使用可靠性,同时也有利于提高转轴组件的装配精度,安装更加方便;且两个轴承盖可以起到分隔件的作用,将两个转轴组件的旋转支撑部间隔分开,从而有效防止两个转轴组件相互干涉,进一步提高了两个转轴组件的使用可靠性。
在上述技术方案中,所述轴承盖与所述轴承的形状适配,所述轴承容纳在所述轴承盖内被所述轴承盖支撑。
轴承盖与轴承的形式适配,则两个转轴组件轴向靠内的轴承可以沉入轴承盖内,从而得到有效的支撑和限位,进一步提高了电机的使用可靠性。
在上述技术方案中,所述轴承盖的开口端设有径向向外延伸的翻边。
轴承盖的开口端设有翻边,翻边径向向外延伸,可以与后期注塑的机壳凹凸配合,起到一定的限位作用,防止轴承盖相对定子铁芯轴向移动。
在上述技术方案中,所述翻边上设有至少一个缺口。
在翻边上设置至少一个缺口,缺口可以与后期注塑的机壳凹凸配合,从而 防止轴承盖相对于定子组件周向旋转,进而提高轴承盖的稳定性。进一步地,缺口的数量为多个,多个缺口沿翻边的周向间隔分布。
在上述任一技术方案中,所述电机还包括:支撑轴承,同轴设于所述空心轴的输出端部与另一个所述转轴之间。
在空心轴的输出端部与另一个转轴之间增设支撑轴承,可以进一步提高两个转轴组件的支撑刚度,从而进一步提高电机的使用可靠性。
在上述任一技术方案中,两个所述转轴组件分别沿所述电机的轴向朝所述电机的轴向同侧凸伸。
两个转轴组件分别沿电机的轴向朝电机的轴向同侧凸伸,使得电机的轴向一端均可以输出两个动力,且两个动力互不干扰,丰富了电机的功能性。
当然,两个转轴组件也可以沿电机的轴向朝电机的轴向两侧凸伸,使得电机的轴向两端可以输出两个转矩。
在上述任一技术方案中,所述定子铁芯包括定子轭部和沿所述定子轭部的周向方向排布的多个定子齿部,多个所述定子齿部与所述定子轭部组装形成所述定子铁芯,且多个所述定子齿部向所述定子轭部的轴向两侧凸伸形成两组所述定子齿,两组所述绕组分别绕设在所述定子轭部轴向两侧的所述定子齿上。
该方案将定子铁芯拆分成定子轭部和多个定子齿部,既有利于降低定子铁芯的加工难度,又有利于降低两组绕组的绕线难度。其中,定子轭部可以由多个定子冲片叠压形成,定子齿部也可以由多个定子冲片叠压形成。当然,定子铁芯也可以是一体式结构。
在上述技术方案中,所述定子轭部的径向中部设有适配所述电机的轴套的通孔,所述通孔构成所述定子铁芯的中空通道的一部分;和/或,所述定子轭部的径向外侧壁设有卡槽,所述定子齿部的局部嵌入所述卡槽内,使所述定子齿部与所述定子轭部卡接配合。
由于多个定子齿部沿定子轭部的周向方向排布,故而多个定子齿部围设出一定的中空空间,因而在定子轭部的径向的中部设置通孔,该通孔与前述中空空间即形成中空通道,可以为转轴组件提供有利的轴向安装空间,从而缩短电机的轴向尺寸。
在定子轭部的径向外侧壁设置卡槽,利用卡槽可以将定子齿部卡接在定子 轭部上,从而实现定子轭部与定子齿部的组装,且结构简单,便于加工,也便于装配。
在上述技术方案中,任一所述定子齿部包括至少一个所述定子齿,所述定子齿包括齿身和与所述齿身的轴向一端相连且位于所述定子轭部的轴向一侧的齿面,任一组所述定子齿的所有齿面位于同一平面内并垂直于所述定子轭部的轴线。
任一定子齿部包括至少一个定子齿,定子齿包括齿身和齿面,齿面与齿身远离定子轭部的轴向端相连,因而位于定子轭部的轴向一侧;任一组定子齿的所有齿面位于同一平面内并垂直于定子轭部的轴线,保证了可以与该侧的转子组件形成轴向气隙。
在上述技术方案中,所述定子齿部包括两个所述定子齿,且所述定子齿部的齿身上设有限位台阶,所述限位台阶与所述定子轭部相抵靠,用于限制所述定子齿部相对所述定子轭部轴向移动。
一个定子齿部包括两个定子齿,两个定子齿的齿面分别位于定子轭部的轴向两侧,可以与两侧的转子组件形成轴向气隙。相较于一个定子齿部仅包括一个定子齿的方案而言,减少了定子齿部的数量,简化了装配工序。当然,一个定子齿部也可以只包括一个定子齿,在定子铁芯的一个部位安装两个反向的定子齿部,形成两个定子齿。
在上述任一技术方案中,所述转子组件包括与所述转轴组件同轴连接的转子盘和安装在所述转子盘上的永磁体,所述转子盘沿其径向由外向内包括盘体外部和与所述盘体外部相连的盘体内部,其中,所述盘体外部为圆盘状结构,所述盘体内部为圆盘状结构或者圆锥状结构。
转子组件包括转子盘和永磁体,转子盘作为永磁体的安装载体,并实现转子组件与转轴组件的同轴连接;永磁体安装在转子盘上,产生磁场与定子组件相互作用。其中,转子盘的盘体外部为圆盘状结构,结构较为规整,便于加工成型,也便于多个永磁体的排列;盘体内部为圆盘状结构或圆锥状结构,便于根据产品的具体结构合理设计转子盘与转轴组件的装配结构,为其他零件的安装提供有利的空间。
在上述技术方案中,所述转子盘与所述转轴组件的转轴同轴连接;其中, 所述转子盘与所述转轴组件的转轴为注塑成型或焊接成型的一体式结构,或者所述转子盘与所述转轴螺纹连接或者过盈配合。
转轴组件包括转轴,转子盘与转轴同轴连接且通过注塑成型或者焊接成型的方式固定在一起,形成一体式结构,或者通过螺纹连接、过盈装配等方式实现固定连接,有效保证了转轴与转子盘的连接可靠性,从而保证了转轴与转子组件同步旋转的可靠性。
在上述技术方案中,所述永磁体为圆形或扇形的饼状结构,所述永磁体的数量为多个,多个所述永磁体周向均布于所述转子盘朝向所述定子轭部的轴向表面,形成轴向磁通;相邻的两个所述永磁体的N极和S极交替排列或呈海尔贝克阵列排列。
永磁体为圆形或扇形的饼状结构,便于排列,并减小电机的轴向尺寸、多个永磁体沿转子盘的周向方向均布在转子盘朝向定子轭部的表面上,使转子组件与定子组件之间形成轴向磁通。其中,相邻两个永磁体的N极和S极可以交替排列,也可以呈海尔贝克阵列(Halbach)排列,具体可以根据产品需求进行调整。
在上述任一技术方案中,所述电机还包括:绝缘框架,安装在所述定子齿上;安装架,固定连接于所述绝缘框架;多个插针,插设于所述安装架上,且两组所述绕组的引出线均固连于多个所述插针上。
电机还包括绝缘框架、安装架和多个插针,绝缘框架安装在定子齿上,保证安装在定子齿上的绕组的安全性和可靠性;安装架与绝缘框架固定连接,并插设有多个插针,两组绕组的引出线均固定连接在多个插针上,从而把两组绕组的出现头引出到一个固定稳定的导电载体上。
在上述技术方案中,所述安装架为同轴于所述定子组件的弧形条状结构,且所述安装架以及多个所述插针位于所述转子组件的径向外侧。
安装架为同轴于定子组件的弧形条状结构,且安装架以及多个插针位于两个转子组件的径向外侧,使得电机的结构相对规整,且不易干扰到电机的内部磁场,同时便于与外部线路连接。
在上述技术方案中,所述电机还包括:机壳,所述机壳为注塑体,并将所述绝缘框架、所述安装架、多个所述插针和所述电机的轴套固定连接成一个整 体,且所述机壳的外径大于所述定子组件、所述绝缘框架、所述安装架、多个所述插针形成的最大径向外轮廓面,所述机壳的轴向两端面均包括内端面和与所述内端面的外边缘相连的外端面,所述外端面位于所述内端面的径向外侧且至少部分凸出于所述内端面,使所述机壳的轴向两端面形成外高内低的台阶状结构,其中,两个所述内端面与所述定子铁芯的轴向两端面平齐或不超过所述定子铁芯的轴向两端面。
电机还包括机壳,机壳为注塑体,包覆绝缘框架、安装架等结构,使得绝缘框架、安装架、多个插针以及轴套可以固定连接形成一个整体,保证了电机的稳定性;且机壳的外径大于定子组件、绝缘框架、安装架以及多个插针形成的最大径向外轮廓面,保证了这些部件包覆在机壳的径向外表面内,从而保证电机外观的完整性、规整性及其与外界的绝缘性。同时,机壳的轴向两端面并不是规整的平面,而是外高内低的台阶状结构,位于径向外侧凸出来的部分记为外端面,尺寸相对较小;位于内侧凹进去的部分记为内端面,尺寸相对较大。其中,两个内端面与定子铁芯的轴向两端面平齐或不超过定子铁芯的轴向两端面(即定子铁芯的两组齿面),便于更精确有效地控制齿面与永磁体之间的轴向气隙。
在上述技术方案中,所述机壳的两个所述外端面分别设有同轴于所述定子组件的圆形凸台。
机壳的两个外端面设有两个圆形凸台,两个圆形凸台与定子组件同轴连接,便于与其他结构配合,来封装电机。
在上述技术方案中,所述机壳靠近多个所述插针的轴向一端设有台阶面,多个所述插针贯穿所述台阶面并沿所述定子组件的轴向凸出于所述台阶面。
在机壳靠近多个插针的轴向一端设置台阶面,使多个插针贯穿台阶面并沿定子组件的轴向凸出于台阶面,可以为插针与其他导电零件的接通或安装提供有利空间。其中,台阶面可以设置在圆形凸台的内侧壁上,进一步简化机壳结构。
在上述技术方案中,所述电机还包括:两个端部封装盖,分别同轴固定安装于所述机壳的轴向两端,用于封装所述电机,且设有供所述转轴组件伸出的轴孔。
在机壳的轴向两端安装端部封装盖,保证了电机的完整性,对电机的内部结构起到了有效的保护作用;且端部封装盖设有轴孔,用于供对应的转轴伸出,保证电机的动力可以输出。其中,圆形凸台的外壁面与机壳的外壁面之间形成台阶,端部封装盖可以设置盖沿,恰好与该台阶适配,使得电机的外轮廓较为规整。
在上述技术方案中,所述端部封装盖的边缘部位设有环形凹槽,所述机壳的两个外端面处的圆形凸台嵌入对应的所述环形凹槽内。
机壳的两个外端面设有两个圆形凸台,两个圆形凸台与定子组件同轴连接,而端部封装盖的边缘部位设有环形凹槽,则将圆形凸台嵌入环形凹槽内,即可实现止口配合,进而实现端部封装盖的装配到位,结构简单,装配便捷。
在上述技术方案中,对于所述转轴组件的旋转支撑部的多个轴承沿所述转轴的长度方向间隔分布在所述转子组件的轴向两侧的情况,所述端部封装盖设有用于容纳对应的所述转轴组件轴向靠外的所述轴承的轴承室。
在两个端部封装盖上设置轴承室,对两个转轴组件轴向靠外的轴承(即相对靠近电机外部的轴承)进行支撑,可以对两个旋转支撑部起到进一步的支撑和限位,从而进一步提高两个转轴组件的使用可靠性。此外,将轴承室集成在端部封装盖上,使得端部封装盖也起到了轴承盖的作用,相较于额外设置轴承盖再固定在端部封装盖上的方案而言,减少了部件数量,简化了装配工序,降低了生产成本。
比如,端部封装盖的中间部位,先凹陷形成沉台,沉台的底壁再局部反向凸出形成凸台,凸台限定出的空间即为轴承室。进一步地,对应端部封装盖的转子盘的盘体内部构造成圆锥状斜面结构,以适配端部封装盖。这样可以合理利用中空通道的内部空间,有利于进一步减小电机的轴向尺寸。
在上述技术方案中,所述电机还包括:电控板,内置于所述电机任意一侧的所述转子组件与所述端部封装盖之间。
电控板的设置,有利于实现电机的自动化控制;将电控板设置在电机任意一侧,并位于该侧的转子组件与端部封装盖之间,既保证了电控板的稳定性,又便于电控板的线路输出。
本申请第二方面的技术方案提供了一种风机,包括:至少一个如第一方面 技术方案中任一项所述的电机;两个风扇,分别与所述电机的两个所述转轴组件固定连接,两个所述风扇同轴相互独立旋转。
本申请第二方面的技术方案提供的风机,因包括第一方面技术方案中任一项所述的电机,因而具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低等显著优点。
本申请的附加方面和优点将在下面的描述部分中变得明显,或通过本申请的实践了解到。
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解,其中:
图1是本申请一些实施例所述的电机的局部结构示意图;
图2是本申请一些实施例所述的电机的分解结构示意图;
图3是本申请一些实施例所述的定子组件的结构示意图;
图4是本申请一些实施例所述的轴套的局部结构示意图;
图5是本申请一些实施例所述的电机的局部结构示意图;
图6是本申请一些实施例所述的转子的分解结构示意图;
图7是本申请一些实施例所述的风机的结构示意图。
其中,图1至图7中的附图标记与部件名称之间的对应关系为:
100-电机;200-第一风扇;300-第二风扇;
1-定子组件;11-定子铁芯;111-定子轭部;1111-卡槽;1112-通孔;112-定子齿部;1121-齿面;1122-限位台阶;1123-齿身;121-第一绕组;122-第二绕组;
21-第一转子组件;211-第一转子盘;212-第一永磁体;22-第二转子组件;221-第二转子盘;2211-盘体外部;2212-盘体内部;222-第二永磁体;
3-轴套;31-外侧壁;32-内侧壁;33-法兰;34-缺口;35-沟槽;
41-第一转轴组件;411-第一转轴,4111-连接段;4112-延伸段,412-第一旋转支撑部;42-第二转轴组件;421-第二转轴;422-第二旋转支撑部;
51-第一绝缘框架;52-第二绝缘框架;
6-安装架;
7-插针;
8-机壳;81-齿部包裹面;82-第一圆形凸台;83-第二圆形凸台;84-台阶面;
9-电控板;
101-第一轴套封装盖;102-第二轴套封装盖;110支撑轴承;131-第一端部封装盖;132-第二端部封装盖。
图8是本申请一些实施例所述的电机的局部结构示意图;
图9是本申请一些实施例所述的电机的分解结构示意图;
图10是本申请一些实施例所述的定子组件的结构示意图;
图11是本申请一些实施例所述的轴承盖的局部结构示意图;
图12是本申请一些实施例所述的端部封装盖的局部结构示意图;
图13是本申请一些实施例所述的电机的局部结构示意图;
图14是本申请一些实施例所述的转子的局部分解结构示意图;
图15是本申请一些实施例所述的风机的结构示意图。
其中,图8至图15中的附图标记与部件名称之间的对应关系为:
100’-电机;200’-第一风扇;300’-第二风扇;
1’-定子组件;11’-定子铁芯;111’-定子轭部;1111’-卡槽;1112’-通孔;112’-定子齿部;1121’-齿面;1122’-限位台阶;1123’-齿身;121’-第一绕组;122’-第二绕组;
21’-第一转子组件;211’-第一转子盘;212’-第一永磁体;22’-第二转子组件;221’-第二转子盘;2211’-盘体外部;2212’-盘体内部;222’-第二永磁体;
31’-第一转轴组件;311’-第一转轴;3111’-连接段;3112’-延伸段;312’-第一旋转支撑部;32’-第二转轴组件;321’-第二转轴;322’-第二旋转支撑部;
41’-第一轴承盖;411’-外壁;412’-内壁;413’-翻边;414’-缺口;42’-第二轴承盖;
51’-第一绝缘框架;52’-第二绝缘框架;
6’-安装架;
7’-插针;
8’-机壳;81’-齿部包裹面;82’-第一圆形凸台;83’-第二圆形凸台;84’-台阶面;
9’-电控板;
101’-第一端部封装盖;102’-第二端部封装盖;1021’-轴承室;1022’-环形凹槽;110’-支撑轴承。
为了能够更清楚地理解本申请的上述目的、特征和优点,下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是,在不冲突的情况下,本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请,但是,本申请还可以采用其他不同于在此描述的其他方式来实施,因此,本申请的保护范围并不受下面公开的具体实施例的限制。
下面参照图1至图7描述根据本申请一些实施例所述的电机及风机。
实施例一
如图1和图2所示,本申请第一方面的实施例提供的电机100,包括:定子组件1、两个相互独立的转子组件和两个相互独立的转轴组件。
具体地,定子组件1包括定子铁芯11和两组相互独立的绕组,如图2所示,定子铁芯11的径向中部设有中空通道(如图1、图2、图3和图5所示),定子铁芯11的轴向两端部设有向其轴向两侧凸伸的定子齿,如图3所示,两组绕组分别绕设在两组定子齿上;两个相互独立的转子组件背向同轴设置在定子组件1的轴向两侧,并与定子组件1形成轴向气隙,且两个转子组件被配置为相互独立旋转;两个相互独立的转轴组件分别与两个转子组件同轴连接,且沿电机的轴向朝远离定子铁芯11的同侧方向凸伸,两个转轴组件的一部分均置于中空通道内,如图1和图2所示。
本申请第一方面的实施例提供的电机100,利用一个定子组件1与两个相互独立的转子组件以及两个相互独立的转轴组件的配合,实现了一个电机100的双动力独立输出,可以驱动两个风扇以各自的转速和转向独立旋转,互不干扰。相较于两个电机100背向轴伸分别连接两个风扇的方案而言,至少省去了 一个定子组件1,缩小了风机的轴向尺寸,降低了风机的成本;相较于一个单轴电机100和齿轮机构相配合来实现两端轴伸的方案而言,实现了两个风扇以任意转速和任意转向旋转,实用功能性强,显著提升了风机功能性的多样化,也省去了齿轮机构,降低了产品的制造安装难度。
具体而言,电机100包括定子组件1、两个相互独立的转子组件和两个相互独立的转轴组件。定子组件1包括定子铁芯11和两组相互独立的绕组;定子铁芯11的轴向两端部设有定子齿,两组定子齿沿定子铁芯11的轴向朝两侧凸伸,供两组绕组缠绕,保证两组绕组可以相互独立作用于电机100;定子铁芯11的径向中部设有中空通道,为转轴组件的安装提供有利的轴向安装空间,使得两个转轴组件的一部分可以插装于中空通道内,从而进一步缩短电机100的轴向尺寸。两个转子组件背向同轴设置在定子组件1的轴向两侧,分别朝向两组绕组,与定子组件1形成轴向气隙,保证两个转子组件互不干扰,实现相互独立旋转。两个转轴组件相互独立,且分别与对应的转子组件同轴连接,分别与对应的转子组件同步旋转。其中,两个转轴组件向电机100的轴向同侧凸伸,使得电机100的轴向一端可以输出两种互不干扰的动力,相较于向电机100的轴向两侧凸伸,有利于缩短电机100的输出端的轴向距离。由于定子组件1的两组绕组相互独立,两个转子组件相互独立,且两个转轴组件相互独立,因而电机100的轴向两端可以输出两个相互独立的转矩,相当于利用一个电机100实现了两个相互独立的电机100的功能,故而具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低的显著优点。
其中,两个转子组件可以分别记为第一转子组件21和第二转子组件22,与第一转子组件21相连的转轴组件记为第一转轴组件41,与第二转子组件22相连的转轴组件记为第二转轴组件42,与第一转子组件21配合的绕组记为第一绕组121,与第二转子组件22配合的绕组记为第二绕组122。
其中,转轴组件包括转轴,其中一个转轴组件的转轴为空心轴,如图1所示,另一个转轴组件的转轴穿过空心轴伸出,如图1和图2所示,且适于相对空心轴旋转。
转轴组件包括转轴,其中一个转轴组件的转轴为空心轴,则另一个转轴组件的转轴可以穿过该空心轴伸出,从而实现两个转轴组件的同向凸伸,使得电 机100的轴向一端可以同时连接两个风扇或者其他部件。进一步地,另一个转轴组件的转轴为实心轴,这有利于提高该转轴的强度。当然,另一个转轴组件的转轴也可以为空心轴。
其中,转轴为空心轴的转轴组件记为第二转轴组件42,第二转轴组件42的转轴记为第二转轴421,第一转轴组件41的转轴记为第一转轴411。具体地,第一转轴411为实心轴,如图1所示。
进一步地,另一个转轴组件(即第一转轴组件41)的转轴包括连接段4111和与连接段4111相连的延伸段4112,如图1所示,连接段4111的外径与空心轴的外径相等且连接段4111与空心轴沿中空通道的轴线方向排布,延伸段4112穿过空心轴伸出。
另一个转轴组件的转轴包括连接段4111和延伸段4112,连接段4111的外径与空心轴的外径相等,且连接段4111与空心轴沿中空通道的轴线方向排布,则两个转轴装配后在中空通道内的部分的外轮廓保持齐平,使得产品的结构较为规整,便于加工成型,也便于装配;同时使得该转轴连接转子组件的部分(即连接段4111)相对较粗,提高了该转轴的强度,有利于提高该转轴的使用可靠性;也便于两个转轴采用相同型号的轴承等支撑结构进行支撑,以提高电机100的可靠性和稳定性。
进一步地,如图1、图2、图4和图5所示,电机100还包括:轴套3,设于中空通道内,且两个转轴组件的一部分插装于轴套3内。
在中空通道内设置轴套3,将两个转轴组件的一端均插装于轴套3内,轴套3可以对两个转轴组件起到良好的限位作用,保证了两个转轴组件与定子组件1之间互不干扰,并降低了转轴组件发生晃动、倾斜、移位等情况的概率,从而提高两个转轴组件的同轴度,有利于提高电机100的使用可靠性,同时也有利于提高转轴组件的装配精度,安装更加方便。
具体地,两个转轴组件的转轴可以嵌套设置,第一转轴组件41的一端插装于轴套3内,另一端向电机100的轴向一侧凸伸,第二转轴组件42的一端插装于轴套3内,另一端穿过上述转轴组件向电机100的轴向同侧凸伸,且两个转轴组件分别与两个转子组件同轴连接,分别与对应的转子组件同步旋转。
进一步地,如图1所示,电机100还包括:支撑轴承110,同轴设于空心 轴的输出端部与另一个转轴之间。
在空心轴的输出端部与另一个转轴之间增设支撑轴承110,可以进一步提高两个转轴组件的支撑刚度,从而进一步提高电机100的使用可靠性。
进一步地,定子铁芯11包括定子轭部111和沿定子轭部111的周向方向排布的多个定子齿部112,如图3所示,多个定子齿部112与定子轭部111组装形成定子铁芯11,且多个定子齿部112向定子轭部111的轴向两侧凸伸形成两组定子齿,两组绕组分别绕设在定子轭部111轴向两侧的定子齿上。
该方案将定子铁芯11拆分成定子轭部111和多个定子齿部112,既有利于降低定子铁芯11的加工难度,又有利于降低两组绕组的绕线难度。其中,定子轭部111可以由多个定子冲片叠压形成,定子齿部112也可以由多个定子冲片叠压形成。当然,定子铁芯11也可以是一体式结构。
进一步地,定子轭部111的径向中部设有适配电机100的轴套3的通孔1112,如图3所示,通孔1112构成定子铁芯11的中空通道的一部分。
由于多个定子齿部112沿定子轭部111的周向方向排布,故而多个定子齿部112围设出一定的中空空间,因而在定子轭部111的径向的中部设置通孔1112,该通孔1112与前述中空空间即形成中空通道,可以为转轴组件提供有利的轴向安装空间,从而缩短电机100的轴向尺寸。
进一步地,定子轭部111的径向外侧壁设有卡槽1111,如图3所示,定子齿部112的局部嵌入卡槽1111内,使定子齿部112与定子轭部111卡接配合。
在定子轭部111的径向外侧壁设置卡槽1111,利用卡槽1111可以将定子齿部112卡接在定子轭部111上,从而实现定子轭部111与定子齿部112的组装,且结构简单,便于加工,也便于装配。
其中,任一定子齿部112包括至少一个定子齿,定子齿包括齿身1123和与齿身1123的轴向一端相连且位于定子轭部111的轴向一侧的齿面1121,任一组定子齿的所有齿面1121位于同一平面内并垂直于定子轭部111的轴线。
任一定子齿部112包括至少一个定子齿,定子齿包括齿身1123和齿面1121,齿面1121与齿身1123远离定子轭部111的轴向端相连,因而位于定子轭部111的轴向一侧;任一组定子齿的所有齿面1121位于同一平面内并垂直于定子轭部111的轴线,保证了可以与该侧的转子组件形成轴向气隙。
进一步地,定子齿部112包括两个定子齿,且定子齿部112的齿身1123上设有限位台阶1122,如图3所示,限位台阶1122与定子轭部111相抵靠,用于限制定子齿部112相对定子轭部111轴向移动。
一个定子齿部112包括两个定子齿,两个定子齿的齿面1121分别位于定子轭部111的轴向两侧,可以与两侧的转子组件形成轴向气隙。相较于一个定子齿部112仅包括一个定子齿的方案而言,减少了定子齿部112的数量,简化了装配工序。当然,一个定子齿部112也可以只包括一个定子齿,在定子铁芯11的一个部位安装两个反向的定子齿部112,形成两个定子齿。
实施例二
与实施例一的区别在于:在实施例一的基础上,进一步地,如图6所示,转子组件包括与转轴组件同轴连接的转子盘和安装在转子盘上的永磁体,转子盘沿其径向由外向内包括盘体外部2211和与盘体外部2211相连的盘体内部2212,其中,盘体外部2211为圆盘状结构,盘体内部2212为圆盘状结构或者圆锥状结构。
转子组件包括转子盘和永磁体,转子盘作为永磁体的安装载体,并实现转子组件与转轴组件的同轴连接;永磁体安装在转子盘上,产生磁场与定子组件1相互作用。其中,转子盘的盘体外部2211为圆盘状结构,结构较为规整,便于加工成型,也便于多个永磁体的排列;盘体内部2212为圆盘状结构或圆锥状结构,便于根据产品的具体结构合理设计转子盘与转轴组件的装配结构,为其他零件的安装提供有利的空间。
具体地,第一转子组件21的转子盘和永磁体分别记为第一转子盘211和第一永磁体212,第二转子组件22的转子盘和永磁体分别记为第二转子盘221和第二永磁体222。
进一步地,转轴组件包括转轴,转子盘与转轴同轴连接。
其中,转子盘与转轴为注塑成型的一体式结构。
或者,转子盘与转轴为焊接成型的一体式结构。
或者,转子盘与转轴螺纹连接。
或者,转子盘与转轴过盈配合。
转轴组件包括转轴,转子盘与转轴同轴连接且通过注塑成型或者焊接成型 的方式固定在一起,形成一体式结构,或者通过螺纹连接、过盈装配等方式实现固定连接,有效保证了转轴与转子盘的连接可靠性,从而保证了转轴与转子组件同步旋转的可靠性。当然,转轴与转子盘也可以采用其他方式固定连接,比如紧固件连接等方式。
具体地,永磁体为圆形或扇形的饼状结构,永磁体的数量为多个,多个永磁体周向均布于转子盘朝向定子轭部111的轴向表面,形成轴向磁通;相邻的两个永磁体的N极和S极交替排列或呈海尔贝克阵列排列。
永磁体为圆形或扇形的饼状结构,便于排列,并减小电机100的轴向尺寸、多个永磁体沿转子盘的周向方向均布在转子盘朝向定子轭部111的表面上,使转子组件与定子组件1之间形成轴向磁通。其中,相邻两个永磁体的N极和S极可以交替排列,也可以呈海尔贝克阵列(Halbach)排列,具体可以根据产品需求进行调整。
实施例三
与实施例二的区别在于:在实施例二的基础上,进一步地,转轴组件包括转轴和旋转支撑部,旋转支撑部容纳于轴套3内,并位于轴套3与转轴之间,用于支撑转轴且使转轴适于相对轴套3旋转,转轴与转子组件同轴连接。
转轴组件包括转轴和旋转支撑部,旋转支撑部容纳于轴套3内,并位于轴套3与转轴之间,保证转轴位置的稳定性以及旋转过程中的稳定性;转轴与转子组件同轴连接,实现了电机100的动力输出功能。
具体地,第一转轴组件41的转轴和旋转支撑部,分别记为第一转轴411和第一旋转支撑部412,第二转轴组件42的转轴和旋转支撑部,分别记为第二转轴421和第二旋转支撑部422。
其中,旋转支撑部包括至少一个轴承,如图1和图2所示。
旋转支撑部包括至少一个轴承,利用轴承来支撑转轴,可以显著提高转轴的使用可靠性。当然,旋转支撑部并不局限于轴承,也可以是其他结构。比如:在轴套3的内侧壁32沿周向设置多个滚针,利用多个滚针来支撑转轴;或者,在轴套3的内侧壁32沿轴向设置多个连接环,连接环的内侧壁为光滑面,利用多个连接环来支撑转轴。
具体地,轴承的数量为多个,多个轴承沿转轴的长度方向间隔分布在转子 组件的轴向同侧,如图1和图2所示。
沿转轴的长度方向间隔设置多个轴承,能够对转轴的多个部位进行支撑,有利于提高旋转支撑部对转轴的支撑可靠性,从而进一步提高转轴组件的使用可靠性;且多个轴承位于对应的转子组件的轴向同侧,便于多个轴承完全容纳在轴套3内,则多个轴承与电机两端的端盖没有配合关系,因而只需集中保证轴套3的加工精度即可,而不需要保证端盖的加工精度,从而有利于降低制造成本。进一步地,轴承的数量为两个,两个轴承既能有效提高对转轴组件的支撑可靠性,还便于容纳在轴套3内,并减少部件数量,节约生产成本。
进一步地,轴套3的外侧壁31与中空通道相配合,轴套3的内侧壁32与轴承配合,且轴套3与中空通道通过凹凸结构配合,以限制轴套3相对定子组件1轴向移动。
轴套3的外侧壁31与中空通道相配合,轴套3的内侧壁32与轴承配合,保证轴套3位置的稳定性;且轴套3与中空通道通过凹凸结构配合,可以防止轴套3相对定子组件1沿轴向移动,从而进一步提高轴套3的稳定性。
具体地,凹凸结构包括设置在轴套3的外侧壁31上的法兰33(如图4)和设置在中空通道的壁面上的凹槽;其中,法兰33还设有至少一个缺口34,如图4所示。
在轴套3的外侧壁31上设置法兰33,相应在中空通道的壁面上设置凹槽,则装配时使法兰33嵌入凹槽中,即可实现轴套3的装配定位,限制轴套3沿定子组件1的轴向移动。其中,法兰33还设有至少一个缺口34,缺口34可以与后期注塑的机壳凹凸配合,从而防止轴套3相对于定子组件1周向旋转,进而提高轴套3的稳定性。进一步地,缺口34的数量为多个,多个缺口34沿法兰33的周向间隔分布。
进一步地,轴套3的内侧壁32上设有分隔部,分隔部用于使两个旋转支撑部间隔分开。
在轴套3的内侧壁32上设置分隔部,利用分隔部可以将两个转轴组件的旋转支撑部间隔分开,从而有效防止两个转轴组件相互干涉,进一步提高了两个转轴组件的使用可靠性。
比如,分隔部为沟槽35(如图4所示),用于安装环形挡圈或者挡板; 分隔部也可以为环形凸起或者一体成型的隔板。
实施例四
与实施例三的区别在于:在实施例三的基础上,进一步地,电机100还包括:绝缘框架、安装架6和多个插针7,如图1和图2所示。
具体地,绝缘框架安装在定子齿上;安装架6固定连接于绝缘框架;多个插针7插设于安装架6上,且两组绕组的引出线均固连于多个插针7上。
电机100还包括绝缘框架、安装架6和多个插针7,绝缘框架安装在定子齿上,保证安装在定子齿上的绕组的安全性和可靠性;安装架6与绝缘框架固定连接,并插设有多个插针7,两组绕组的引出线均固定连接在多个插针7上,从而把两组绕组的出现头引出到一个固定稳定的导电载体上。
其中,绝缘框架的数量为两个或两组,两个或两组绝缘框架分别安装在两组定子齿上,且分别记为第一绝缘框架51和第二绝缘框架52,安装架6与其中一个绝缘框架固定连接。
具体地,安装架6为同轴于定子组件1的弧形条状结构,且安装架6以及多个插针7位于转子组件的径向外侧,如图5所示。
安装架6为同轴于定子组件1的弧形条状结构,且安装架6以及多个插针7位于两个转子组件的径向外侧,使得电机100的结构相对规整,且不易干扰到电机100的内部磁场,同时便于与外部线路连接。
进一步地,电机100还包括机壳8,如图2所示,机壳8为注塑体,并将绝缘框架、安装架6、多个插针7和轴套3固定连接成一个整体,如图5所示,且机壳8的外径大于定子组件1、绝缘框架、安装架6、多个插针7形成的最大径向外轮廓面,机壳8的轴向两端面均包括内端面和与内端面的外边缘相连的外端面,外端面位于内端面的径向外侧且至少部分凸出于内端面,使机壳8的轴向两端面形成外高内低的台阶状结构,其中,两个内端面与定子铁芯11的轴向两端面平齐或不超过定子铁芯11的轴向两端面。
电机100还包括机壳8,机壳8为注塑体,包覆绝缘框架、安装架6等结构,使得绝缘框架、安装架6、多个插针7以及轴套3可以固定连接形成一个整体,保证了电机100的稳定性;且机壳8的外径大于定子组件1、绝缘框架、安装架6以及多个插针7形成的最大径向外轮廓面,保证了这些部件包覆在机 壳8的径向外表面内,从而保证电机100外观的完整性、规整性及其与外界的绝缘性。同时,机壳8的轴向两端面(也可以叫齿部包裹面81)并不是规整的平面,而是外高内低的台阶状结构,如图2和图5所示,位于径向外侧凸出来的部分记为外端面,尺寸相对较小;位于内侧凹进去的部分记为内端面,尺寸相对较大,如图2和图5所示。
其中,两个内端面(也就是机壳8径向内侧的轴向两端面)与定子铁芯11的轴向两端面平齐或不超过定子铁芯11的轴向两端面(即定子铁芯11的两组齿面1121),便于更精确有效地控制齿面与永磁体之间的轴向气隙。
进一步地,机壳8的两个外端面分别设有同轴于定子组件1的圆形凸台,如图5所示。
机壳8的两个外端面(也就是机壳8的径向外侧的轴向两端面)设有两个圆形凸台,两个圆形凸台与定子组件1同轴连接,便于与其他结构配合,来封装电机100。进一步地,圆形凸台上可以设置一些避让缺口,便于电机100的装配或调试。
其中,位于第一转子组件21一侧的圆形凸台,记为第一圆形凸台82,位于第二转子组件22一侧的圆形凸台记为第二圆形凸台83。
进一步地,机壳8靠近多个插针7的轴向一端设有台阶面84,多个插针7贯穿台阶面84并沿定子组件1的轴向凸出于台阶面84,如图5所示。
在机壳8靠近多个插针7的轴向一端设置台阶面84,使多个插针7贯穿台阶面84并沿定子组件1的轴向凸出于台阶面84,可以为插针7与其他导电零件的接通或安装提供有利空间。其中,台阶面84可以设置在其中一个圆形凸台的内侧壁上,进一步简化机壳8结构。
进一步地,如图1和图2所示,电机100还包括:两个端部封装盖,分别同轴固定安装于机壳8的轴向两端,用于封装电机100,且设有供两个转轴组件伸出的轴孔。
在机壳8的轴向两端安装端部封装盖,保证了电机100的完整性,对电机100的内部结构起到了有效的保护作用;且端部封装盖设有轴孔,用于供对应的转轴伸出,保证电机100的动力可以输出。其中,圆形凸台的外壁面与机壳8的外壁面之间形成台阶,端部封装盖可以设置盖沿,恰好与该台阶适配,使 得电机100的外轮廓较为规整。
其中,位于第一转子组件21一侧的端部封装盖记为第一端部封装盖131,位于第二转子组件22一侧的端部封装盖记为第二端部封装盖132。
进一步地,如图1和图2所示,电机100还包括:电控板9,内置于电机100任意一侧的转子组件与端部封装盖之间。
电控板9的设置,有利于实现电机100的自动化控制;将电控板9设置在电机100任意一侧,并位于该侧的转子组件与端部封装盖之间,既保证了电控板9的稳定性,又便于电控板9的线路输出。
进一步地,如图2所示,电机100还包括:两个轴套封装盖,固接于轴套3的轴向端口处,用于限制转轴组件轴向移动。
在轴套3的轴向两个端口处安装轴套封装盖,可以防止位于轴套3内的旋转支撑部轴向移动,从而起到限制两个转轴组件发生轴向移动的作用,进一步提高了电机100的使用可靠性。其中,轴套封装盖可以通过螺钉等紧固件与轴套3固定连接。
其中,位于第一转子组件21一侧的轴套封装盖,记为第一轴套封装盖101,位于第二转子组件22一侧的轴套封装盖,记为第二轴套封装盖102。
如图7所示,本申请第二方面的实施例提供的风机,包括:至少一个如第一方面实施例中任一项的电机100和两个风扇,两个风扇分别与电机100的两个转轴组件固定连接,两个风扇同轴相互独立旋转。
本申请第二方面的实施例提供的风机,因包括第一方面实施例中任一项的电机100,因而具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低等显著优点。
其中,与第一转轴组件41相连的风扇记为第一风扇200,与第二转轴组件42相连的风扇记为第二风扇300。
本说明书中,以图1中心轴线的延伸方向简称为“轴向”,以环绕中心轴线的方向简称为“周向”,以垂直于中心轴线的方向简称为“径向”。
下面结合一个具体示例来描述本申请提供的电机100及风机。
如图1至图7所示,一种电机100,包括:定子组件1、两个转子组件(即第一转子组件21和第二转子组件22)、轴套3和两个转轴组件(即第一转轴 组件41和第二转轴组件42)。
具体地,定子组件1包括定子铁芯11和两组绕组(即第一绕组121和第二绕组122),定子铁芯11由定子轭部111和多个可拆卸的定子齿部112连接成一个径向中空、轴向两侧齿伸的整体,定子径向中空为电机100的轴承提供有利的轴向安装空间,第一绕组121和第二绕组122分别缠绕于定子轴向两侧的定子齿身1123上,而第一绕组121和第二绕组122可以相互独立作用于电机100。
定子轭部111径向外侧开有多个槽口(即卡槽1111),用于定子齿部112的配合安装;定子轭部111径向内侧开有圆孔槽(即通孔1112),用于轴套3的安装。
单个定子齿部112具有至少一个齿身1123和至少一个齿面1121,多个定子齿部112与定子轭部111配合安装完成后,定子轭部111轴向两侧具有两组齿身1123和两组齿面1121,且与同一转子组件相作用的一组齿面1121均在一个平面内并垂直于轴线;定子齿部112与定子轭部111配合安装的面上设计有限位台阶1122,用于与定子轭部111的轴向端面抵靠,以限定定子齿部112与定子轭部111的轴向相对位置。
第一转子组件21和第二转子组件22背向同轴可旋转地置于定子组件1轴向两侧外,与定子组件1形成轴向气隙。第一转子组件21包括第一转子盘211和第一永磁体212,第二转子组件22包括第二转子盘221和第二永磁体222,第一转子组件21和第二转子组件22可相互独立旋转。
第一转子盘211与第二转子盘221结构大体一致,以其中的一个转子盘为例进行说明,转子盘径向外侧为圆盘状结构,径向内侧为圆盘状平面或圆锥状斜面结构,为其他零件的安装提供有利的空间。
第一转子盘211径向外侧为圆盘状结构,并通过螺纹连接方式与第一转轴411固定连接;第二转子盘221径向外侧为圆盘状结构,并通过注塑方式与第二转轴421固定连接。
第一永磁体212和第二永磁体222为圆形或扇形的饼状结构,并周向均布于转子盘圆盘状结构的轴向表面,形成轴向磁通;相邻两永磁体的N和S极交替排列或呈Halbach排列。
轴套3位于定子铁芯11中空内,同轴固定并伸出定子轭部111轴向两侧。
轴套3外壁与定子轭部111径向内侧圆槽孔相配合,轴套3的内壁与第一转轴组件41和第二转轴组件42的轴承配合,轴套3径向外侧设计一个法兰33,用于与定子轭部111的轴向限位,并在法兰33径向均布设计多个小缺口34,用于止转连接;轴套3内壁中部位置设有一个沟槽35,用于挡圈的安装,以间隔两个转轴组件的第一旋转支撑部412和第二旋转支撑部422。
第一转轴组件41和第二转轴组件42分别与第一转子组件21和第二转子组件22同轴固连,从电机100轴向同侧同轴输出,第一转轴组件41和第二转轴组件42可相互独立旋转。第一转轴组件41包括实心轴和两个轴承,两个轴承同轴设于实心轴径向外侧且轴向间隔置于其固连第一转子组件的轴向同侧,形成第一旋转支撑部412;第二转轴组件42包括空心轴和两个轴承,两个轴承同轴设于空心轴径向外侧且轴向间隔置于其固连第二转子组件的轴向同侧,形成第二旋转支撑部422。第一转轴组件41的第一旋转支撑部412和第二转轴组件42的第二旋转支撑部422置于电机100的轴向两侧,全部收容于轴套3内。
电机100还包括安装于定子齿的齿身1123上的第一绝缘框架51和第二绝缘框架52、固接于第一绝缘框架51或第二绝缘框架52上的安装架6和插于安装架6上的多个插针7。第一绕组121和第二绕组122引出线均固连于多个插针7上,从而把第一绕组121和第二绕组122的出线头引出到一个固定稳定的导电载体上。
安装架6为同轴于定子的弧形条状结构,安装架6、多个插针7位于第一转子组件21和第二转子组件22的径向外侧。
电机100还包括塑料机壳8,塑料机壳8把定子组件1、第一绝缘框架51和第二绝缘框架52、安装架6、多个插针7和轴套3固定连接成一个整体。塑料机壳8的外径大于定子组件1、第一绝缘框架51和第二绝缘框架52、安装架6、多个插针7形成的最大径向外轮廓面;轴向两侧定子齿部112包裹面(即机壳8的轴向两端面)平齐或不超出定子组件1的两组齿面1121;塑料机壳8轴向两端外侧设计两个同轴于定子组件1的圆柱凸台(即圆形凸台);塑料机壳8在插针7所在侧设有一个台阶面84,且插针7露出台阶面84一定距离, 为插针7与其他导电零件的接通或安装提供空间。
电机100还包括第一轴套封装盖101和第二轴套封装盖102,第一轴套封装盖101和第二轴套封装盖102固接于轴套3端口处,限定第一转轴组件41和第二转轴组件42的轴向移动。
电机100还包括第一端部封装盖131和第二端部封装盖132,第一端部封装盖131和第二端部封装盖132分别同轴固定安装于塑料机壳8的轴向两端,用于封装电机100,且端部封装盖和与塑料机壳8采用止口配合。
电机100还可包括一个电控板9,电控板9内置于电机100任意一侧的第一转子组件21与第一端部封装盖131之间或第二转子组件22与第二端部封装盖132之间。
电机100还可包括一个支撑轴承110,支撑轴承110同轴设于空心轴输出端部与实心轴之间,用于增加第一转轴组件41与第二转轴组件42的支撑刚度。
一种风机,包括:电机100、第一风扇200、第二风扇300,第一风扇200、第二风扇300分别与电机100同侧输出的第一转轴组件41和第二转轴组件42同轴固定连接,第一风扇200与第二风扇300同轴相互独立旋转。
由此,上述电机及风机具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低等显著优点。
下面参照图8至图15描述根据本申请一些实施例所述的电机及风机。
实施例一
如图8和图9所示,本申请第一方面的实施例提供的电机100’,包括:定子组件1’、两个相互独立的转子组件和两个相互独立的转轴组件。
具体地,定子组件1’包括定子铁芯11’和两组相互独立的绕组,定子铁芯11’的径向中部设有中空通道,如图9所示,定子铁芯11’的轴向两端部设有向其轴向两侧凸伸的定子齿,如图10所示,两组绕组分别绕设在两组定子齿上;两个相互独立的转子组件背向同轴设置在定子组件1’的轴向两侧,并与定子组件1’形成轴向气隙,且两个转子组件被配置为相互独立旋转;两个相互独立的转轴组件,转轴组件包括转轴和旋转支撑部,旋转支撑部至少部分容纳于中空通道内并套设在转轴上,用于支撑转轴且使转轴适于相对定子铁芯11’旋转,两个转轴分别与两个转子组件同轴连接,且沿电机100’的轴向朝远离定子铁芯11’的同侧方向凸伸,如图8和图9所示。
本申请第一方面的实施例提供的电机100’,利用一个定子组件1’与两个相互独立的转子组件以及两个相互独立的转轴组件的配合,实现了一个电机100’的双动力独立输出,可以驱动两个风扇以各自的转速和转向独立旋转,互不干扰。相较于两个电机100’背向轴伸分别连接两个风扇的方案而言,至少省去了一个定子组件1’,缩小了风机的轴向尺寸,降低了风机的成本;相较于一个单轴电机100’和齿轮机构相配合来实现两端轴伸的方案而言,实现了两个风扇以任意转速和任意转向旋转,实用功能性强,显著提升了风机功能性的多样化,也省去了齿轮机构,降低了产品的制造安装难度。
具体而言,电机100’包括定子组件1’、两个相互独立的转子组件和两个相互独立的转轴组件。定子组件1’包括定子铁芯11’和两组相互独立的绕组;定子铁芯11’的轴向两端部设有定子齿,两组定子齿沿定子铁芯11’的轴向朝两侧凸伸,供两组绕组缠绕,保证两组绕组可以相互独立作用于电机100’;定子铁芯11’的径向中部设有中空通道,为转轴组件的安装提供有利的轴向安装空间,使得两个转轴组件的一部分可以插装于中空通道内,从而进一步缩短电机100’的轴向尺寸。两个转子组件背向同轴设置在定子组件1’的轴向两侧,分别朝向两组绕组,与定子组件1’形成轴向气隙,保证两个转子组件互不干扰,实现相互独立旋转。转轴组件包括转轴和旋转支撑部,旋转支撑部部分或全部容纳于中空通道内,并套设在转轴上,保证转轴位置的稳定性以及旋转过程中的稳定性;转轴与转子组件同轴连接,实现了电机100’的动力输出功能。两个转轴组件相互独立,且分别与对应的转子组件同轴连接,分别与对应的转子组件同步旋转。其中,两个转轴组件向电机100’的轴向同侧凸伸,使得电机100’的轴向一端可以输出两种互不干扰的动力,相较于向电机100’的轴向两侧凸伸,有利于缩短电机100’的输出端的轴向距离。由于定子组件1’的两组绕组相互独立,两个转子组件相互独立,且两个转轴组件相互独立,因而电机100’的轴向两端可以输出两个相互独立的转矩,相当于利用一个电机100’实现了两个相互独立的电机100’的功能,故而具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低的显著优点。
其中,两个转子组件可以分别记为第一转子组件21’和第二转子组件22’,与第一转子组件21’相连的转轴组件记为第一转轴组件31’,与第二转子组 件22’相连的转轴组件记为第二转轴组件32’,与第一转子组件21’配合的绕组记为第一绕组121’,与第二转子组件22’配合的绕组记为第二绕组122’。
具体地,第一转轴组件31’的转轴和旋转支撑部,分别记为第一转轴311’和第一旋转支撑部312’,第二转轴组件32’的转轴和旋转支撑部,分别记为第二转轴321’和第二旋转支撑部322’。
其中,旋转支撑部包括至少一个轴承,如图8和图9所示。
旋转支撑部包括至少一个轴承,利用轴承来支撑转轴,可以显著提高转轴的使用可靠性。当然,旋转支撑部并不局限于轴承,也可以是其他结构。比如:在中空通道的内侧壁沿周向设置多个滚针,利用多个滚针来支撑转轴;或者,在中空通道的内侧壁沿轴向设置多个连接环,连接环的内侧壁为光滑面,利用多个连接环来支撑转轴。
具体地,轴承的数量为多个,多个轴承沿转轴的长度方向间隔分布在转子组件的轴向两侧,如图8和图9所示。
沿转轴的长度方向间隔设置多个轴承,能够对转轴的多个部位进行支撑,有利于提高旋转支撑部对转轴的支撑可靠性,从而进一步提高转轴组件的使用可靠性;且多个轴承位于对应的转子组件的轴向两侧,可以分散对转轴的多个部位进行支撑,从而提高对转轴的支撑可靠性,显著降低转轴发生倾斜等情况的风险,从而提高电机100’的使用可靠性。
进一步地,轴承的数量为两个,如图8和图9所示,两个轴承既能有效提高对转轴组件的支撑可靠性,还可以减少部件数量,节约生产成本。
进一步地,如图8和图9所示,电机100’还包括:两个轴承盖,套装在中空通道内并与定子铁芯11’固定连接,且两个轴承盖相背设置,用于分别支撑对应的转轴组件轴向靠内的轴承。
在中空通道内设置两个轴承盖,对两个转轴组件轴向靠内的轴承(即相对靠近电机100’内部的轴承)进行支撑,由于两个轴承盖相背设置,可以对两个旋转支撑部起到良好的限位作用,保证了两个转轴组件与定子组件1’之间互不干扰,并降低了转轴组件发生晃动、倾斜、移位等情况的概率,有利于提高电机100’的使用可靠性,同时也有利于提高转轴组件的装配精度,安装更加方便;且两个轴承盖可以起到分隔件的作用,将两个转轴组件的旋转支撑部 间隔分开,从而有效防止两个转轴组件相互干涉,进一步提高了两个转轴组件的使用可靠性。
其中,对应第一转轴组件31’的轴承盖记为第一轴承盖41’,对应第二转轴组件32’的轴承盖记为第二轴承盖42’。
进一步地,轴承盖与轴承的形状适配,如图9和图11所示,轴承容纳在轴承盖内被轴承盖支撑,如图8所示。
轴承盖与轴承的形式适配,则两个转轴组件轴向靠内的轴承可以沉入轴承盖内,从而得到有效的支撑和限位,进一步提高了电机100’的使用可靠性。
进一步地,轴承盖的开口端设有径向向外延伸的翻边413’,如图11所示。
轴承盖的开口端设有翻边413’,翻边413’径向向外延伸,可以与后期注塑的机壳8’凹凸配合,起到一定的限位作用,防止轴承盖相对定子铁芯11’轴向移动。
进一步地,翻边413’上设有至少一个缺口414’,如图11所示。
在翻边413’上设置至少一个缺口414’,缺口414’可以与后期注塑的机壳8’凹凸配合,从而防止轴承盖相对于定子组件1’周向旋转,进而提高轴承盖的稳定性。进一步地,缺口414’的数量为多个,多个缺口414’沿翻边413’的周向间隔分布。
进一步地,其中一个转轴组件的转轴为空心轴,如图8所示,另一个转轴组件的转轴穿过空心轴伸出,如图8和图9所示,且适于相对空心轴旋转。
其中一个转轴组件的转轴为空心轴,则另一个转轴组件的转轴可以穿过该空心轴伸出,从而实现两个转轴组件的同向凸伸,使得电机100’的轴向一端可以同时连接两个风扇或者其他部件。具体地,另一个转轴组件的转轴为实心轴,这有利于提高该转轴的强度。当然,另一个转轴组件的转轴也可以为空心轴。
具体地,转轴为空心轴的转轴组件记为第二转轴组件32’,第二转轴组件32’的转轴记为第二转轴321’,第一转轴组件31’的转轴记为第一转轴311’。具体地,第一转轴311’为实心轴,如图8所示。
进一步地,另一个转轴组件(即第一转轴组件31’)的转轴包括连接段3111’和与连接段3111’相连的延伸段3112’,如图8所示,连接段3111’的 外径与空心轴的外径相等且连接段3111’与空心轴沿中空通道的轴线方向排布,延伸段3112’穿过空心轴伸出。
另一个转轴组件的转轴包括连接段3111’和延伸段3112’,连接段3111’的外径与空心轴的外径相等,且连接段3111’与空心轴沿中空通道的轴线方向排布,则两个转轴装配后在中空通道内的部分的外轮廓保持齐平,使得产品的结构较为规整,便于加工成型,也便于装配;同时使得该转轴连接转子组件的部分(即连接段3111’)相对较粗,提高了该转轴的强度,有利于提高该转轴的使用可靠性;也便于两个转轴采用相同型号的轴承等支撑结构进行支撑,以提高电机100’的可靠性和稳定性。
进一步地,如图8所示,电机100’还包括:支撑轴承110’,同轴设于空心轴的输出端部与另一个转轴之间。
在空心轴的输出端部与另一个转轴之间增设支撑轴承110’,可以进一步提高两个转轴组件的支撑刚度,从而进一步提高电机100’的使用可靠性。
进一步地,定子铁芯11’包括定子轭部111’和沿定子轭部111’的周向方向排布的多个定子齿部112’,如图10所示,多个定子齿部112’与定子轭部111’组装形成定子铁芯11’,且多个定子齿部112’向定子轭部111’的轴向两侧凸伸形成两组定子齿,两组绕组分别绕设在定子轭部111’轴向两侧的定子齿上。
该方案将定子铁芯11’拆分成定子轭部111’和多个定子齿部112’,既有利于降低定子铁芯11’的加工难度,又有利于降低两组绕组的绕线难度。其中,定子轭部111’可以由多个定子冲片叠压形成,定子齿部112’也可以由多个定子冲片叠压形成。当然,定子铁芯11’也可以是一体式结构。
进一步地,定子轭部111’的径向中部设有适配电机100’的轴承盖的通孔1112’,如图10所示,通孔1112’构成定子铁芯11’的中空通道的一部分。
由于多个定子齿部112’沿定子轭部111’的周向方向排布,故而多个定子齿部112’围设出一定的中空空间,因而在定子轭部111’的径向的中部设置通孔1112’,该通孔1112’与前述中空空间即形成中空通道,可以为转轴组件提供有利的轴向安装空间,从而缩短电机100’的轴向尺寸。
进一步地,定子轭部111’的径向外侧壁设有卡槽1111’,如图10所示, 定子齿部112’的局部嵌入卡槽1111’内,使定子齿部112’与定子轭部111’卡接配合。
在定子轭部111’的径向外侧壁设置卡槽1111’,利用卡槽1111’可以将定子齿部112’卡接在定子轭部111’上,从而实现定子轭部111’与定子齿部112’的组装,且结构简单,便于加工,也便于装配。
其中,任一定子齿部112’包括至少一个定子齿,定子齿包括齿身1123’和与齿身1123’的轴向一端相连且位于定子轭部111’的轴向一侧的齿面1121’,任一组定子齿的所有齿面1121’位于同一平面内并垂直于定子轭部111’的轴线。
任一定子齿部112’包括至少一个定子齿,定子齿包括齿身1123’和齿面1121’,齿面1121’与齿身1123’远离定子轭部111’的轴向端相连,因而位于定子轭部111’的轴向一侧;任一组定子齿的所有齿面1121’位于同一平面内并垂直于定子轭部111’的轴线,保证了可以与该侧的转子组件形成轴向气隙。
进一步地,定子齿部112’包括两个定子齿,且定子齿部112’的齿身1123’上设有限位台阶1122’,如图10所示,限位台阶1122’与定子轭部111’相抵靠,用于限制定子齿部112’相对定子轭部111’轴向移动。
一个定子齿部112’包括两个定子齿,两个定子齿的齿面1121’分别位于定子轭部111’的轴向两侧,可以与两侧的转子组件形成轴向气隙。相较于一个定子齿部112’仅包括一个定子齿的方案而言,减少了定子齿部112’的数量,简化了装配工序。当然,一个定子齿部112’也可以只包括一个定子齿,在定子铁芯11’的一个部位安装两个反向的定子齿部112’,形成两个定子齿。
实施例二
与实施例一的区别在于:在实施例一的基础上,进一步地,如图14所示,转子组件包括与对应的转轴同轴连接的转子盘和安装在转子盘上的永磁体,转子盘沿其径向由外向内包括盘体外部2211’和与盘体外部2211’相连的盘体内部2212’,其中,盘体外部2211’为圆盘状结构,盘体内部2212’为圆盘状结构或者圆锥状结构。
转子组件包括转子盘和永磁体,转子盘作为永磁体的安装载体,并实现转 子组件与转轴的同轴连接;永磁体安装在转子盘上,产生磁场与定子组件1’相互作用。其中,转子盘的盘体外部2211’为圆盘状结构,结构较为规整,便于加工成型,也便于多个永磁体的排列;盘体内部2212’为圆盘状结构或圆锥状结构,便于根据产品的具体结构合理设计转子盘与转轴组件的装配结构,为其他零件的安装提供有利的空间。
具体地,第一转子组件21’的转子盘和永磁体分别记为第一转子盘211’和第一永磁体212’,第二转子组件22’的转子盘和永磁体分别记为第二转子盘221’和第二永磁体222’。
其中,转子盘与转轴为注塑成型的一体式结构。
或者,转子盘与转轴为焊接成型的一体式结构。
或者,转子盘与转轴螺纹连接。
或者,转子盘与转轴过盈配合。
转轴组件包括转轴,与转轴同轴连接且通过注塑成型或者焊接成型的方式固定在一起,形成一体式结构,或者通过螺纹连接、过盈装配等方式实现固定连接,有效保证了转轴与转子盘的连接可靠性,从而保证了转轴与转子组件同步旋转的可靠性。当然,转轴与转子盘也可以采用其他方式固定连接,比如紧固件连接等方式。
具体地,永磁体为圆形或扇形的饼状结构,永磁体的数量为多个,多个永磁体周向均布于转子盘朝向定子轭部111’的轴向表面,形成轴向磁通;相邻的两个永磁体的N极和S极交替排列或呈海尔贝克阵列排列。
永磁体为圆形或扇形的饼状结构,便于排列,并减小电机100’的轴向尺寸、多个永磁体沿转子盘的周向方向均布在转子盘朝向定子轭部111’的表面上,使转子组件与定子组件1’之间形成轴向磁通。其中,相邻两个永磁体的N极和S极可以交替排列,也可以呈海尔贝克阵列(Halbach)排列,具体可以根据产品需求进行调整。
实施例三
与实施例二的区别在于:在实施例二的基础上,进一步地,电机100’还包括:绝缘框架、安装架6’和多个插针7’,如图8和图9所示。
具体地,绝缘框架安装在定子齿上;安装架6’固定连接于绝缘框架;多 个插针7’插设于安装架6’上,且两组绕组的引出线均固连于多个插针7’上。
电机100’还包括绝缘框架、安装架6’和多个插针7’,绝缘框架安装在定子齿上,保证安装在定子齿上的绕组的安全性和可靠性;安装架6’与绝缘框架固定连接,并插设有多个插针7’,两组绕组的引出线均固定连接在多个插针7’上,从而把两组绕组的出现头引出到一个固定稳定的导电载体上。
其中,绝缘框架的数量为两个或两组,两个或两组绝缘框架分别安装在两组定子齿上,且分别记为第一绝缘框架51’和第二绝缘框架52’,安装架6’与其中一个绝缘框架固定连接。
具体地,安装架6’为同轴于定子组件1’的弧形条状结构,且安装架6’以及多个插针7’位于转子组件的径向外侧,如图13所示。
安装架6’为同轴于定子组件1’的弧形条状结构,且安装架6’以及多个插针7’位于两个转子组件的径向外侧,使得电机100’的结构相对规整,且不易干扰到电机100’的内部磁场,同时便于与外部线路连接。
进一步地,电机100’还包括机壳8’,如图9所示,机壳8’为注塑体,并将绝缘框架、安装架6’、多个插针7’和电机100’的两个轴承盖固定连接成一个整体,如图13所示,且机壳8’的外径大于定子组件1’、绝缘框架、安装架6’、多个插针7’形成的最大径向外轮廓面,机壳8’的轴向两端面均包括内端面和与内端面的外边缘相连的外端面,外端面位于内端面的径向外侧且至少部分凸出于内端面,使机壳8’的轴向两端面形成外高内低的台阶状结构,其中,两个内端面与定子铁芯11’的轴向两端面平齐或不超过定子铁芯11’的轴向两端面。
电机100’还包括机壳8’,机壳8’为注塑体,包覆绝缘框架、安装架6’等结构,使得绝缘框架、安装架6’、多个插针7’以及两个轴承盖可以固定连接形成一个整体,保证了电机100’的稳定性;且机壳8’的外径大于定子组件1’、绝缘框架、安装架6’以及多个插针7’形成的最大径向外轮廓面,保证了这些部件包覆在机壳8’的径向外表面内,从而保证电机100’外观的完整性、规整性及其与外界的绝缘性。同时,机壳8’的轴向两端面(也可以叫齿部包裹面81’)并不是规整的平面,而是外高内低的台阶状结构,如图9 和图12所示,位于径向外侧凸出来的部分记为外端面,尺寸相对较小;位于内侧凹进去的部分记为内端面,尺寸相对较大,如图9和图12所示。
其中,两个内端面(也就是机壳8’径向内侧的轴向两端面)与定子铁芯11’的轴向两端面平齐或不超过定子铁芯11’的轴向两端面(即定子铁芯11’的两组齿面1121’),便于更精确有效地控制齿面与永磁体之间的轴向气隙。
进一步地,机壳8’靠近多个插针7’的轴向一端设有台阶面84’,多个插针7’贯穿台阶面84’并沿定子组件1’的轴向凸出于台阶面84’,如图13所示。
在机壳8’靠近多个插针7’的轴向一端设置台阶面84’,使多个插针7’贯穿台阶面84’并沿定子组件1’的轴向凸出于台阶面84’,可以为插针7’与其他导电零件的接通或安装提供有利空间。
进一步地,如图8和图9所示,电机100’还包括:两个端部封装盖,分别同轴固定安装于机壳8’的轴向两端,用于封装电机100’,且设有供对应的转轴伸出的轴孔。
在机壳8’的轴向两端安装端部封装盖,保证了电机100’的完整性,对电机100’的内部结构起到了有效的保护作用;且端部封装盖设有轴孔,用于供对应的转轴伸出,保证电机100’的动力可以输出。其中,圆形凸台的外壁面与机壳8’的外壁面之间形成台阶,端部封装盖可以设置盖沿,恰好与该台阶适配,使得电机100’的外轮廓较为规整。
其中,位于第一转子组件21’一侧的端部封装盖记为第一端部封装盖101’,位于第二转子组件22’一侧的端部封装盖记为第二端部封装盖102’。
进一步地,端部封装盖设有用于容纳对应的转轴组件轴向靠外的轴承的轴承室1021’,如图12所示。
在两个端部封装盖上设置轴承室1021’,对两个转轴组件轴向靠外的轴承(即相对靠近电机100’外部的轴承)进行支撑,可以对两个旋转支撑部起到进一步的支撑和限位,从而进一步提高两个转轴组件的使用可靠性。此外,将轴承室1021’集成在端部封装盖上,使得端部封装盖也起到了轴承盖的作用,相较于额外设置轴承盖再固定在端部封装盖上的方案而言,减少了部件数量,简化了装配工序,降低了生产成本。
具体地,如图12所示,端部封装盖的中间部位,先凹陷形成沉台,沉台的底壁再局部反向凸出形成凸台,凸台限定出的空间即为轴承室1021’。进一步地,对应端部封装盖的转子盘的盘体内部构造成圆锥状斜面结构,如图14所示,以适配端部封装盖。这样可以合理利用中空通道的内部空间,有利于进一步减小电机100’的轴向尺寸。
进一步地,机壳8’的两个外端面分别设有同轴于定子组件1’的圆形凸台,如图13所示,所述端部封装盖的边缘部位设有环形凹槽1022’,所述圆形凸台嵌入对应的所述环形凹槽1022’内,如图8所示。
机壳的两个外端面(也就是机壳8’的径向外侧的轴向两端面)设有两个圆形凸台,两个圆形凸台与定子组件同轴连接,而端部封装盖的边缘部位设有环形凹槽1022’,则将圆形凸台嵌入环形凹槽1022’内,即可实现止口配合,进而实现端部封装盖的装配到位,结构简单,装配便捷。
其中,位于第一转子组件21’一侧的圆形凸台,记为第一圆形凸台82’,位于第二转子组件22’一侧的圆形凸台记为第二圆形凸台83’。进一步地,台阶面84’可以设置在其中一个圆形凸台的内侧壁上,如图13所示,进一步简化机壳8’结构。
进一步地,如图8和图9所示,电机100’还包括:电控板9’,内置于电机100’任意一侧的转子组件与端部封装盖之间。
电控板9’的设置,有利于实现电机100’的自动化控制;将电控板9’设置在电机100’任意一侧,并位于该侧的转子组件与端部封装盖之间,既保证了电控板9’的稳定性,又便于电控板9’的线路输出。
如图15所示,本申请第二方面的实施例提供的风机,包括:至少一个如第一方面实施例中任一项的电机100’和两个风扇,两个风扇分别与电机100’的两个转轴组件固定连接,两个风扇同轴相互独立旋转。
本申请第二方面的实施例提供的风机,因包括第一方面实施例中任一项的电机100’,因而具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低等显著优点。
其中,与第一转轴组件31’相连的风扇记为第一风扇100’,与第二转轴组件32’相连的风扇记为第二风扇300’。
本说明书中,以图8中心轴线的延伸方向简称为“轴向”,以环绕中心轴线的方向简称为“周向”,以垂直于中心轴线的方向简称为“径向”。
下面结合一个具体示例来描述本申请提供的电机100’及风机。
如图8至图15所示,一种电机100’,包括:定子组件1’、两个转子组件(即第一转子组件21’和第二转子组件22’)和两个转轴组件(即第一转轴组件31’和第二转轴组件32’)。
具体地,定子组件1’包括定子铁芯11’和两组绕组(即第一绕组121’和第二绕组122’),定子铁芯11’由定子轭部111’和多个可拆卸的定子齿部112’连接成一个径向中空、轴向两侧齿伸的整体,定子径向中空为电机100’的轴承提供有利的轴向安装空间,第一绕组121’和第二绕组122’分别缠绕于定子轴向两侧的定子齿身1123’上,而第一绕组121’和第二绕组122’可以相互独立作用于电机100’。
定子轭部111’径向外侧开有多个槽口(即卡槽1111’),用于定子齿部112’的配合安装;定子轭部111’径向内侧开有圆孔槽(即通孔1112’),用于部分或全部收容第一转轴组件31’的第一旋转支撑部312’和第二转轴组件32’的第二旋转支撑部322’。
单个定子齿部112’具有至少一个齿身1123’和至少一个齿面1121’,多个定子齿部112’与定子轭部111’配合安装完成后,定子轭部111’轴向两侧具有两组齿身1123’和两组齿面1121’,且与同一转子组件相作用的一组齿面1121’均在一个平面内并垂直于轴线;定子齿部112’与定子轭部111’配合安装的面上设计有限位台阶1122’,用于与定子轭部111’的轴向端面抵靠,以限定定子齿部112’与定子轭部111’的轴向相对位置。
第一转子组件21’和第二转子组件22’背向同轴可旋转地置于定子组件1’轴向两侧外,与定子组件1’形成轴向气隙。第一转子组件21’包括第一转子盘211’和第一永磁体212’,第二转子组件22’包括第二转子盘221’和第二永磁体222’,第一转子组件21’和第二转子组件22’可相互独立旋转。
第一转子盘211’与第二转子盘221’结构大体一致,以其中的一个转子盘为例进行说明,转子盘径向外侧为圆盘状结构,径向内侧为圆盘状平面或圆 锥状斜面结构,为其他零件的安装提供有利的空间。
转子盘径向外侧为圆盘状结构,并通过螺纹连接方式与对应的转轴固定连接。
第一永磁体212’和第二永磁体222’为圆形或扇形的饼状结构,并周向均布于转子盘圆盘状结构的轴向表面,形成轴向磁通;相邻两永磁体的N和S极交替排列或呈Halbach排列。
第一转轴组件31’和第二转轴组件32’分别与第一转子组件21’和第二转子组件22’同轴固连,从电机100’轴向同侧同轴输出,第一转轴组件31’和第二转轴组件32’可相互独立旋转。第一转轴组件31’包括实心轴和两个轴承,两个轴承同轴设于实心轴径向外侧且分置于其固连第一转子组件31的轴向两侧,形成第一旋转支撑部312’;第二转轴组件32’包括空心轴和两个轴承,两个轴承同轴设于空心轴径向外侧且分置于其固连第二转子组件32的轴向两侧,形成第二旋转支撑部322’。第一转轴组件31’的第一旋转支撑部312’和第二转轴组件32’的第二旋转支撑部322’置于电机100’的轴向两侧,部分或全部收容于定子组件1’的径向中空内。
电机100’还包括两个轴承盖(即第一轴承盖41’和第二轴承盖42’),第一轴承盖41’和第二轴承盖42’与定子组件1’同轴固定连接,并背向开口向外的设于定子轭部111’的圆孔槽内,用于支撑第一转轴组件31’和第二转轴组件32’靠近电机100’内部的轴承。第一轴承盖41’和第二轴承盖42’为薄壁圆柱状结构,以第一轴承盖41’为例进行具体说明,第一轴承盖41’的外壁411’与定子轭部111’径向内侧圆槽孔相配合,第一轴承盖41’的内壁412’与第一转轴组件31’的轴承配合;第一轴承盖41’径向外侧设计一个小翻边413’,并在翻边413’上径向均布设计多个小缺口414’,用于止转连接。
电机100’还包括安装于定子齿的齿身1123’上的第一绝缘框架51’和第二绝缘框架52’、固接于第一绝缘框架51’或第二绝缘框架52’上的安装架6’和插于安装架6’上的多个插针7’。第一绕组121’和第二绕组122’引出线均固连于多个插针7’上,从而把第一绕组121’和第二绕组122’的出线头引出到一个固定稳定的导电载体上。
安装架6’为同轴于定子的弧形条状结构,安装架6’、多个插针7’位 于第一转子组件21’和第二转子组件22’的径向外侧。
电机100’还包括塑料机壳8’,塑料机壳8’把定子组件1’、第一绝缘框架51’和第二绝缘框架52’、安装架6’、多个插针7’、第一轴承盖41’和第二轴承盖42’固定连接成一个整体。塑料机壳8’的外径大于定子组件1’、第一绝缘框架51’和第二绝缘框架52’、安装架6’、多个插针7’形成的最大径向外轮廓面;轴向两侧定子齿部112’包裹面(即机壳8’的轴向两端面)平齐或不超出定子组件1’的两组齿面1121’;塑料机壳8’轴向两端外侧设计两个同轴于定子组件1’的圆柱凸台(即圆形凸台);塑料机壳8’在插针7’所在侧设有一个台阶面84’,且插针7’露出台阶面84’一定距离,为插针7’与其他导电零件的接通或安装提供空间。
电机100’还包括第一端部封装盖101’和第二端部封装盖102’,第一端部封装盖101’和第二端部封装盖102’分别穿过第一转轴311’和第二转轴321’,分别同轴固定安装于塑料机壳8’的轴向两端,用于支撑第一转轴组件31’和第二转轴组件32’靠近电机100’外侧的轴承,并封装电机。以第二端部封装盖102’为例进行具体说明,第二端部封装盖102’外侧设计有与塑料机壳圆柱面凸台(即第二圆形凸台83’)配合的止口(即环形凹槽1022’),径向内侧设计有向地阿基主体内侧下沉的轴承室1021’,从而把轴承沉入第二端部封装盖102’内侧,以降低电机100’的整体轴向尺寸。
电机100’还可包括一个电控板9’,电控板9’内置于电机100’任意一侧的第一转子组件21’与第一端部封装盖101’之间或第二转子组件22’与第二端部封装盖102’之间。
电机100’还可包括一个支撑轴承110’,支撑轴承110’同轴设于空心轴输出端部与实心轴之间,用于增加第一转轴组件31’与第二转轴组件32’的支撑刚度。
一种风机,包括:电机100’、第一风扇200’、第二风扇300’,第一风扇200’、第二风扇300’分别与电机100’两侧输出的第一转轴组件31’和第二转轴组件32’同轴固定连接,第一风扇200’与第二风扇300’同轴相互独立旋转。
由此,上述电机及风机具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低等显著优点。
尽管具有随附权利要求,但本申请也由以下条款限定:
1.一种电机,其中,包括:
定子组件,包括定子铁芯和两组相互独立的绕组,所述定子铁芯的径向中部设有中空通道,所述定子铁芯的轴向两端部设有向其轴向两侧凸伸的定子齿,两组所述绕组分别绕设在两组所述定子齿上;
两个相互独立的转子组件,背向同轴设置在所述定子组件的轴向两侧,并与所述定子组件形成轴向气隙,且两个所述转子组件被配置为相互独立旋转;和
两个相互独立的转轴组件,分别与两个所述转子组件同轴连接,且沿所述电机的轴向朝远离所述定子铁芯的同侧方向凸伸,两个所述转轴组件的一部分均置于所述中空通道内。
2.根据条款1所述的电机,其中,
所述转轴组件包括转轴,其中一个所述转轴组件的转轴为空心轴,另一个所述转轴组件的转轴穿过所述空心轴伸出,且适于相对所述空心轴旋转。
3.根据条款2所述的电机,其中,
另一个所述转轴组件的转轴包括连接段和与所述连接段相连的延伸段,所述连接段的外径与所述空心轴的外径相等且所述连接段与所述空心轴沿所述中空通道的轴线方向排布,所述延伸段穿过所述空心轴伸出。
4.根据条款2所述的电机,其中,还包括:
轴套,设于所述中空通道内,且两个所述转轴的一部分插装于所述轴套内。
5.根据条款2所述的电机,其中,还包括:
支撑轴承,同轴设于所述空心轴的输出端部与另一个所述转轴之间。
6.根据条款1至5中任一项所述的电机,其中,
所述定子铁芯包括定子轭部和沿所述定子轭部的周向方向排布的多个定子齿部,多个所述定子齿部与所述定子轭部组装形成所述定子铁芯,且多个所述定子齿部向所述定子轭部的轴向两侧凸伸形成两组所述定子齿,两组所述绕组分别绕设在所述定子轭部轴向两侧的所述定子齿上。
7.根据条款6所述的电机,其中,
所述定子轭部的径向中部设有适配所述电机的轴套的通孔,所述通孔构成 所述定子铁芯的中空通道的一部分;和/或
所述定子轭部的径向外侧壁设有卡槽,所述定子齿部的局部嵌入所述卡槽内,使所述定子齿部与所述定子轭部卡接配合。
8.根据条款7所述的电机,其中,
任一所述定子齿部包括至少一个所述定子齿,所述定子齿包括齿身和与所述齿身的轴向一端相连且位于所述定子轭部的轴向一侧的齿面,任一组所述定子齿的所有齿面位于同一平面内并垂直于所述定子轭部的轴线。
9.根据条款8所述的电机,其中,
所述定子齿部包括两个所述定子齿,且所述定子齿部的齿身上设有限位台阶,所述限位台阶与所述定子轭部相抵靠,用于限制所述定子齿部相对所述定子轭部轴向移动。
10.根据条款1至5中任一项所述的电机,其中,
所述转子组件包括与所述转轴组件同轴连接的转子盘和安装在所述转子盘上的永磁体,所述转子盘沿其径向由外向内包括盘体外部和与所述盘体外部相连的盘体内部,其中,所述盘体外部为圆盘状结构,所述盘体内部为圆盘状结构或者圆锥状结构。
11.根据条款10所述的电机,其中,
所述转轴组件包括转轴,所述转子盘与所述转轴同轴连接;
其中,所述转子盘与所述转轴为注塑成型或焊接成型的一体式结构,或者所述转子盘与所述转轴螺纹连接或者过盈配合。
12.根据条款10所述的电机,其中,
所述永磁体为圆形或扇形的饼状结构,所述永磁体的数量为多个,多个所述永磁体周向均布于所述转子盘朝向所述定子轭部的轴向表面,形成轴向磁通;相邻的两个所述永磁体的N极和S极交替排列或呈海尔贝克阵列排列。
13.根据条款4所述的电机,其中,
所述转轴组件包括转轴和旋转支撑部,所述旋转支撑部容纳于所述轴套内,并位于所述轴套与所述转轴之间,用于支撑所述转轴且使所述转轴适于相对所述轴套旋转,所述转轴与所述转子组件同轴连接。
14.根据条款13所述的电机,其中,
所述旋转支撑部包括至少一个轴承。
15.根据条款14所述的电机,其中,
所述轴承的数量为多个,多个所述轴承沿所述转轴的长度方向间隔分布在所述转子组件的轴向同侧。
16.根据条款15所述的电机,其中,
所述轴套的外侧壁与所述中空通道相配合,所述轴套的内侧壁与所述轴承配合,且所述轴套与所述中空通道通过凹凸结构配合,以限制所述轴套相对所述定子组件轴向移动。
17.根据条款16所述的电机,其中,
所述凹凸结构包括设置在所述轴套的外侧壁上的法兰和设置在所述中空通道的壁面上的凹槽;
其中,所述法兰还设有至少一个缺口。
18.根据条款14所述的电机,其中,
所述轴套的内侧壁上设有分隔部,所述分隔部用于使两个所述旋转支撑部间隔分开。
19.根据条款1至5中任一项所述的电机,其中,还包括:
绝缘框架,安装在所述定子齿上;
安装架,固定连接于所述绝缘框架;
多个插针,插设于所述安装架上,且两组所述绕组的引出线均固连于多个所述插针上。
20.根据条款19所述的电机,其中,
所述安装架为同轴于所述定子组件的弧形条状结构,且所述安装架以及多个所述插针位于所述转子组件的径向外侧。
21.根据条款19所述的电机,其中,还包括:
机壳,所述机壳为注塑体,并将所述绝缘框架、所述安装架、多个所述插针和所述电机的轴套固定连接成一个整体,且所述机壳的外径大于所述定子组件、所述绝缘框架、所述安装架、多个所述插针形成的最大径向外轮廓面,所述机壳的轴向两端面均包括内端面和与所述内端面的外边缘相连的外端面,所述外端面位于所述内端面的径向外侧且至少部分凸出于所述内端面,使所述机 壳的轴向两端面形成外高内低的台阶状结构,其中,两个所述内端面与所述定子铁芯的轴向两端面平齐或不超过所述定子铁芯的轴向两端面。
22.根据条款21所述的电机,其中,
所述机壳的两个所述外端面分别设有同轴于所述定子组件的圆形凸台。
23.根据条款21所述的电机,其中,
所述机壳靠近多个所述插针的轴向一端设有台阶面,多个所述插针贯穿所述台阶面并沿所述定子组件的轴向凸出于所述台阶面。
24.根据条款21所述的电机,其中,还包括:
两个端部封装盖,分别同轴固定安装于所述机壳的轴向两端,用于封装所述电机,且设有供所述转轴组件伸出的轴孔。
25.根据条款24所述的电机,其中,还包括:
电控板,内置于所述电机任意一侧的所述转子组件与所述端部封装盖之间。
26.根据条款4所述的电机,其中,还包括:
两个轴套封装盖,固接于所述轴套的轴向端口处,用于限制所述转轴组件轴向移动。
27.一种风机,其中,包括:
至少一个如条款1至26中任一项所述的电机;
两个风扇,分别与所述电机的两个所述转轴组件固定连接,两个所述风扇同轴相互独立旋转。
28.一种电机,其中,包括:
定子组件,包括定子铁芯和两组相互独立的绕组,所述定子铁芯的径向中部设有中空通道,所述定子铁芯的轴向两端部设有向其轴向两侧凸伸的定子齿,两组所述绕组分别绕设在两组所述定子齿上;
两个相互独立的转子组件,背向同轴设置在所述定子组件的轴向两侧,并与所述定子组件形成轴向气隙,且两个所述转子组件被配置为相互独立旋转;和
两个相互独立的转轴组件,所述转轴组件包括转轴和旋转支撑部,所述旋转支撑部至少部分容纳于所述中空通道内并套设在所述转轴上,用于支撑所述 转轴且使所述转轴适于相对所述定子铁芯旋转,两个所述转轴分别与两个所述转子组件同轴连接,且沿所述电机的轴向朝远离所述定子铁芯的同侧方向凸伸。
29.根据条款28所述的电机,其中,
所述旋转支撑部包括至少一个轴承。
30.根据条款29所述的电机,其中,
所述轴承的数量为多个,多个所述轴承沿所述转轴的长度方向间隔分布在对应的所述转子组件的轴向两侧。
31.根据条款30所述的电机,其中,还包括:
两个轴承盖,套装在所述中空通道内并与所述定子铁芯固定连接,且两个所述轴承盖相背设置,用于分别支撑对应的所述转轴组件轴向靠内的所述轴承。
32.根据条款31所述的电机,其中,
所述轴承盖与所述轴承的形状适配,所述轴承容纳在所述轴承盖内被所述轴承盖支撑。
33.根据条款32所述的电机,其中,
所述轴承盖的开口端设有径向向外延伸的翻边。
34.根据条款33所述的电机,其中,
所述翻边上设有至少一个缺口。
35.根据条款28至34中任一项所述的电机,其中,
其中一个所述转轴组件的转轴为空心轴,另一个所述转轴组件的转轴穿过所述空心轴伸出,且适于相对所述空心轴旋转。
36.根据条款35所述的电机,其中,
另一个所述转轴组件的转轴包括连接段和与所述连接段相连的延伸段,所述连接段的外径与所述空心轴的外径相等且所述连接段与所述空心轴沿所述中空通道的轴线方向排布,所述延伸段穿过所述空心轴伸出。
37.根据条款35所述的电机,其中,还包括:
支撑轴承,同轴设于所述空心轴的输出端部与另一个所述转轴之间。
38.根据条款28至34中任一项所述的电机,其中,
所述定子铁芯包括定子轭部和沿所述定子轭部的周向方向排布的多个定子齿部,多个所述定子齿部与所述定子轭部组装形成所述定子铁芯,且多个所述定子齿部向所述定子轭部的轴向两侧凸伸形成两组所述定子齿,两组所述绕组分别绕设在所述定子轭部轴向两侧的所述定子齿上。
39.根据条款38所述的电机,其中,
所述定子轭部的径向中部设有适配所述电机的轴承盖的通孔,所述通孔构成所述定子铁芯的中空通道的一部分;和/或
所述定子轭部的径向外侧壁设有卡槽,所述定子齿部的局部嵌入所述卡槽内,使所述定子齿部与所述定子轭部卡接配合。
40.根据条款39所述的电机,其中,
任一所述定子齿部包括至少一个所述定子齿,所述定子齿包括齿身和与所述齿身的轴向一端相连且位于所述定子轭部的轴向一侧的齿面,任一组所述定子齿的所有齿面位于同一平面内并垂直于所述定子轭部的轴线。
41.根据条款40所述的电机,其中,
所述定子齿部包括两个所述定子齿,且所述定子齿部的齿身上设有限位台阶,所述限位台阶与所述定子轭部相抵靠,用于限制所述定子齿部相对所述定子轭部轴向移动。
42.根据条款28至34中任一项所述的电机,其中,
所述转子组件包括与对应的所述转轴同轴连接的转子盘和安装在所述转子盘上的永磁体,所述转子盘沿其径向由外向内包括盘体外部和与所述盘体外部相连的盘体内部,其中,所述盘体外部为圆盘状结构,所述盘体内部为圆盘状结构或者圆锥状结构。
43.根据条款42所述的电机,其中,
所述转子盘与对应的所述转轴为注塑成型或焊接成型的的一体式结构;或者
所述转子盘与所述转轴螺纹连接或者过盈配合。
44.根据条款42所述的电机,其中,
所述永磁体为圆形或扇形的饼状结构,所述永磁体的数量为多个,多个所述永磁体周向均布于所述转子盘朝向所述定子轭部的轴向表面,形成轴向磁 通;相邻的两个所述永磁体的N极和S极交替排列或呈海尔贝克阵列排列。
45.根据条款28至34中任一项所述的电机,其中,还包括:
绝缘框架,安装在所述定子齿上;
安装架,固定连接于所述绝缘框架;
多个插针,插设于所述安装架上,且两组所述绕组的引出线均固连于多个所述插针上。
46.根据条款45所述的电机,其中,
所述安装架为同轴于所述定子组件的弧形条状结构,且所述安装架以及多个所述插针位于所述转子组件的径向外侧。
47.根据条款45所述的电机,其中,还包括:
机壳,所述机壳为注塑体,并将所述绝缘框架、所述安装架、多个所述插针和所述电机的两个轴承盖固定连接成一个整体,且所述机壳的外径大于所述定子组件、所述绝缘框架、所述安装架、多个所述插针形成的最大径向外轮廓面,所述机壳的轴向两端面均包括内端面和与所述内端面的外边缘相连的外端面,所述外端面位于所述内端面的径向外侧且至少部分凸出于所述内端面,使所述机壳的轴向两端面形成外高内低的台阶状结构,其中,两个所述内端面与所述定子铁芯的轴向两端面平齐或不超过所述定子铁芯的轴向两端面。
48.根据条款47所述的电机,其中,
所述机壳靠近多个所述插针的轴向一端设有台阶面,多个所述插针贯穿所述台阶面并沿所述定子组件的轴向凸出于所述台阶面。
49.根据条款47所述的电机,其中,还包括:
两个端部封装盖,分别同轴固定安装于所述机壳的轴向两端,用于封装所述电机,且设有供对应的所述转轴伸出的轴孔。
50.根据条款49所述的电机,其中,
所述端部封装盖设有用于容纳对应的所述转轴组件轴向靠外的所述轴承的轴承室。
51.根据条款49所述的电机,其中,
所述机壳的两个所述外端面分别设有同轴于所述定子组件的圆形凸台,所述端部封装盖的边缘部位设有环形凹槽,所述圆形凸台嵌入对应的所述环形凹 槽内。
52.根据条款49所述的电机,其中,还包括:
电控板,内置于所述电机任意一侧的所述转子组件与所述端部封装盖之间。
53.一种风机,其中,包括:
至少一个如条款28至52中任一项所述的电机;
两个风扇,分别与所述电机的两个所述转轴组件固定连接,两个所述风扇同轴相互独立旋转。
综上所述,本申请提供的电机,利用一个定子组件与两个相互独立的转子组件以及两个相互独立的转轴组件的配合,实现了一个电机的双动力独立输出,可以驱动两个风扇以各自的转速和转向独立旋转,互不干扰。相较于两个电机背向轴伸分别连接两个风扇的方案而言,至少省去了一个定子组件,缩小了风机的轴向尺寸,降低了风机的成本;相较于一个单轴电机和齿轮机构相配合来实现两端轴伸的方案而言,实现了两个风扇以任意转速和任意转向旋转,实用功能性强,显著提升了风机功能性的多样化,也省去了齿轮机构,降低了产品的制造安装难度。
在本申请中,术语“第一”、“第二”、“第三”仅用于描述的目的,而不能理解为指示或暗示相对重要性;术语“多个”则指两个或两个以上,除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解,例如,“连接”可以是固定连接,也可以是可拆卸连接,或一体地连接;“相连”可以是直接相连,也可以通过中间媒介间接相连。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。
本申请的描述中,需要理解的是,术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作,因此,不能理解为对本申请的限制。
在本说明书的描述中,术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述 不一定指的是相同的实施例或实例。而且,描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述仅为本申请的优选实施例而已,并不用于限制本申请,对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。
Claims (36)
- 一种电机,其中,包括:定子组件,包括定子铁芯和两组相互独立的绕组,所述定子铁芯的径向中部设有中空通道,所述定子铁芯的轴向两端部设有向其轴向两侧凸伸的定子齿,两组所述绕组分别绕设在两组所述定子齿上;两个相互独立的转子组件,背向同轴设置在所述定子组件的轴向两侧,并与所述定子组件形成轴向气隙,且两个所述转子组件被配置为相互独立旋转;和两个相互独立的转轴组件,分别与两个所述转子组件同轴连接,且沿所述电机的轴向朝远离所述定子铁芯的同侧方向凸伸,两个所述转轴组件的一部分均置于所述中空通道内。
- 根据权利要求1所述的电机,其中,其中一个所述转轴组件的转轴为空心轴,另一个所述转轴组件的转轴穿过所述空心轴伸出,且适于相对所述空心轴旋转。
- 根据权利要求2所述的电机,其中,另一个所述转轴组件的转轴包括连接段和与所述连接段相连的延伸段,所述连接段的外径与所述空心轴的外径相等且所述连接段与所述空心轴沿所述中空通道的轴线方向排布,所述延伸段穿过所述空心轴伸出。
- 根据权利要求2或3所述的电机,其中,还包括:支撑轴承,同轴设于所述空心轴的输出端部与另一个所述转轴之间。
- 根据权利要求2至4中任一项所述的电机,其中,还包括:轴套,设于所述中空通道内,且两个所述转轴的一部分插装于所述轴套内。
- 根据权利要求5所述的电机,其中,所述转轴组件包括转轴和旋转支撑部,所述旋转支撑部容纳于所述轴套内,并位于所述轴套与所述转轴之间,用于支撑所述转轴且使所述转轴适于相对所述轴套旋转,所述转轴与所述转子组件同轴连接。
- 根据权利要求6所述的电机,其中,所述旋转支撑部包括至少一个轴承。
- 根据权利要求7所述的电机,其中,所述轴承的数量为多个,多个所述轴承沿所述转轴的长度方向间隔分布在所述转子组件的轴向同侧。
- 根据权利要求8所述的电机,其中,所述轴套的外侧壁与所述中空通道相配合,所述轴套的内侧壁与所述轴承配合,且所述轴套与所述中空通道通过凹凸结构配合,以限制所述轴套相对所述定子组件轴向移动。
- 根据权利要求9所述的电机,其中,所述凹凸结构包括设置在所述轴套的外侧壁上的法兰和设置在所述中空通道的壁面上的凹槽;其中,所述法兰还设有至少一个缺口。
- 根据权利要求6至10中任一项所述的电机,其中,所述轴套的内侧壁上设有分隔部,所述分隔部用于使两个所述旋转支撑部间隔分开。
- 根据权利要求5至11中任一项所述的电机,其中,还包括:两个轴套封装盖,固接于所述轴套的轴向端口处,用于限制所述转轴组件轴向移动。
- 根据权利要求2至4中任一项所述的电机,其中,所述转轴组件包括转轴和旋转支撑部,所述旋转支撑部至少部分容纳于所述中空通道内并套设在所述转轴上,用于支撑所述转轴且使所述转轴适于相对所述定子铁芯旋转,两个所述转轴分别与两个所述转子组件同轴连接,且沿所述电机的轴向朝远离所述定子铁芯的同侧方向凸伸。
- 根据权利要求13所述的电机,其中,所述旋转支撑部包括至少一个轴承。
- 根据权利要求14所述的电机,其中,所述轴承的数量为多个,多个所述轴承沿所述转轴的长度方向间隔分布在对应的所述转子组件的轴向两侧。
- 根据权利要求15所述的电机,其中,还包括:两个轴承盖,套装在所述中空通道内并与所述定子铁芯固定连接,且两个所述轴承盖相背设置,用于分别支撑对应的所述转轴组件轴向靠内的所述轴承。
- 根据权利要求16所述的电机,其中,所述轴承盖与所述轴承的形状适配,所述轴承容纳在所述轴承盖内被所述轴承盖支撑。
- 根据权利要求17所述的电机,其中,所述轴承盖的开口端设有径向向外延伸的翻边。
- 根据权利要求18所述的电机,其中,所述翻边上设有至少一个缺口。
- 根据权利要求1至19中任一项所述的电机,其中,所述定子铁芯包括定子轭部和沿所述定子轭部的周向方向排布的多个定子齿部,多个所述定子齿部与所述定子轭部组装形成所述定子铁芯,且多个所述定子齿部向所述定子轭部的轴向两侧凸伸形成两组所述定子齿,两组所述绕组分别绕设在所述定子轭部轴向两侧的所述定子齿上。
- 根据权利要求20所述的电机,其中,所述定子轭部的径向中部设有适配所述电机的轴套的通孔,所述通孔构成所述定子铁芯的中空通道的一部分;和/或所述定子轭部的径向外侧壁设有卡槽,所述定子齿部的局部嵌入所述卡槽内,使所述定子齿部与所述定子轭部卡接配合。
- 根据权利要求21所述的电机,其中,任一所述定子齿部包括至少一个所述定子齿,所述定子齿包括齿身和与所述齿身的轴向一端相连且位于所述定子轭部的轴向一侧的齿面,任一组所述定子齿的所有齿面位于同一平面内并垂直于所述定子轭部的轴线。
- 根据权利要求22所述的电机,其中,所述定子齿部包括两个所述定子齿,且所述定子齿部的齿身上设有限位台阶,所述限位台阶与所述定子轭部相抵靠,用于限制所述定子齿部相对所述定子轭部轴向移动。
- 根据权利要求1至23中任一项所述的电机,其中,所述转子组件包括与所述转轴组件同轴连接的转子盘和安装在所述转子盘上的永磁体,所述转子盘沿其径向由外向内包括盘体外部和与所述盘体外部相连的盘体内部,其中,所述盘体外部为圆盘状结构,所述盘体内部为圆盘状结构或者圆锥状结构。
- 根据权利要求24所述的电机,其中,所述转子盘与所述转轴组件的转轴为注塑成型或焊接成型的一体式结构,或者所述转子盘与所述转轴组件的转轴螺纹连接或者过盈配合。
- 根据权利要求24或25所述的电机,其中,所述永磁体为圆形或扇形的饼状结构,所述永磁体的数量为多个,多个所述永磁体周向均布于所述转子盘朝向所述定子轭部的轴向表面,形成轴向磁通;相邻的两个所述永磁体的N极和S极交替排列或呈海尔贝克阵列排列。
- 根据权利要求1至26中任一项所述的电机,其中,还包括:绝缘框架,安装在所述定子齿上;安装架,固定连接于所述绝缘框架;多个插针,插设于所述安装架上,且两组所述绕组的引出线均固连于多个所述插针上。
- 根据权利要求27所述的电机,其中,所述安装架为同轴于所述定子组件的弧形条状结构,且所述安装架以及多个所述插针位于所述转子组件的径向外侧。
- 根据权利要求27或28所述的电机,其中,还包括:机壳,所述机壳为注塑体,并将所述绝缘框架、所述安装架、多个所述插针和所述电机的轴套固定连接成一个整体,且所述机壳的外径大于所述定子组件、所述绝缘框架、所述安装架、多个所述插针形成的最大径向外轮廓面,所述机壳的轴向两端面均包括内端面和与所述内端面的外边缘相连的外端面,所述外端面位于所述内端面的径向外侧且至少部分凸出于所述内端面,使所述机壳的轴向两端面形成外高内低的台阶状结构,其中,两个所述内端面与所述定子铁芯的轴向两端面平齐或不超过所述定子铁芯的轴向两端面。
- 根据权利要求29所述的电机,其中,所述机壳的两个所述外端面分别设有同轴于所述定子组件的圆形凸台。
- 根据权利要求29或30所述的电机,其中,所述机壳靠近多个所述插针的轴向一端设有台阶面,多个所述插针贯穿所述台阶面并沿所述定子组件的轴向凸出于所述台阶面。
- 根据权利要求29至31中任一项所述的电机,其中,还包括:两个端部封装盖,分别同轴固定安装于所述机壳的轴向两端,用于封装所述电机,且设有供所述转轴组件伸出的轴孔。
- 根据权利要求32所述的电机,其中,所述端部封装盖的边缘部位设有环形凹槽,所述机壳的两个外端面处的圆形凸台嵌入对应的所述环形凹槽内。
- 根据权利要求32或33所述的电机,其中,对于所述转轴组件的旋转支撑部的多个轴承沿所述转轴的长度方向间隔分布在所述转子组件的轴向两侧的情况,所述端部封装盖设有用于容纳对应的所述转轴组件轴向靠外的所述轴承的轴承室。
- 根据权利要求32至34中任一项所述的电机,其中,还包括:电控板,内置于所述电机任意一侧的所述转子组件与所述端部封装盖之间。
- 一种风机,其中,包括:至少一个如权利要求1至35中任一项所述的电机;两个风扇,分别与所述电机的两个所述转轴组件固定连接,两个所述风扇同轴相互独立旋转。
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| US17/519,789 US11863030B2 (en) | 2019-08-26 | 2021-11-05 | Motor and fan |
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| CN201921394369.X | 2019-08-26 | ||
| CN201921393592.2U CN210225216U (zh) | 2019-08-26 | 2019-08-26 | 电机及风机 |
| CN201910792794.2A CN112436699B (zh) | 2019-08-26 | 2019-08-26 | 电机及风机 |
| CN201910792792.3 | 2019-08-26 | ||
| CN201921394369.XU CN210167928U (zh) | 2019-08-26 | 2019-08-26 | 电机及风机 |
| CN201910792792.3A CN112436698B (zh) | 2019-08-26 | 2019-08-26 | 电机及风机 |
| CN201921393592.2 | 2019-08-26 | ||
| CN201910792794.2 | 2019-08-26 |
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| US17/519,789 Continuation US11863030B2 (en) | 2019-08-26 | 2021-11-05 | Motor and fan |
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| WO2021035933A1 true WO2021035933A1 (zh) | 2021-03-04 |
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| US (1) | US11863030B2 (zh) |
| EP (1) | EP3940932A4 (zh) |
| WO (1) | WO2021035933A1 (zh) |
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| CN115013329B (zh) * | 2022-06-30 | 2025-11-21 | 美的威灵电机技术(上海)有限公司 | 风机和电器设备 |
| CN115333262B (zh) * | 2022-08-16 | 2026-04-10 | 广东美的白色家电技术创新中心有限公司 | 轴向磁通定子组件和电机 |
| US20240079921A1 (en) * | 2022-09-02 | 2024-03-07 | Finemech Co., Ltd. | Motor generator |
| KR20240043949A (ko) * | 2022-09-28 | 2024-04-04 | 현대자동차주식회사 | Afpm 모터 고정자 및 그 제조 방법 |
| CN115603481A (zh) * | 2022-10-24 | 2023-01-13 | 深圳市小题大作科技有限公司(Cn) | 电机以及风干设备 |
| CN118944320A (zh) * | 2023-05-12 | 2024-11-12 | 安徽美芝制冷设备有限公司 | 电机结构及压缩机 |
| FR3150363A1 (fr) * | 2023-06-20 | 2024-12-27 | Valeo Eautomotive Germany Gmbh | Dent perfectionnée pour stator de machine électrique à flux axial |
| CN120728948A (zh) * | 2024-03-29 | 2025-09-30 | 比亚迪股份有限公司 | 直线电机、电磁减振器和车辆 |
| CN222928177U (zh) * | 2024-06-07 | 2025-05-30 | 莱克电气股份有限公司 | 一种用于园林工具的无刷电机 |
| CN120444736B (zh) * | 2025-07-10 | 2025-11-04 | 追觅创新科技(苏州)有限公司 | 导风结构、室内机及空气处理设备 |
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Also Published As
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| US20220060096A1 (en) | 2022-02-24 |
| EP3940932A1 (en) | 2022-01-19 |
| US11863030B2 (en) | 2024-01-02 |
| EP3940932A4 (en) | 2022-06-08 |
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