WO2022052873A1 - 一种定子、风机及清洁设备 - Google Patents

一种定子、风机及清洁设备 Download PDF

Info

Publication number
WO2022052873A1
WO2022052873A1 PCT/CN2021/116434 CN2021116434W WO2022052873A1 WO 2022052873 A1 WO2022052873 A1 WO 2022052873A1 CN 2021116434 W CN2021116434 W CN 2021116434W WO 2022052873 A1 WO2022052873 A1 WO 2022052873A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
coil
winding
diffuser
phase
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
Application number
PCT/CN2021/116434
Other languages
English (en)
French (fr)
Inventor
李长城
李行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Rockrobo Technology Co Ltd
Original Assignee
Beijing Rockrobo Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Rockrobo Technology Co Ltd filed Critical Beijing Rockrobo Technology Co Ltd
Priority to US18/022,198 priority Critical patent/US12199486B2/en
Priority to KR1020227036369A priority patent/KR102800087B1/ko
Priority to EP21865927.4A priority patent/EP4213343A4/en
Priority to JP2022560953A priority patent/JP7743431B2/ja
Publication of WO2022052873A1 publication Critical patent/WO2022052873A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/22—Mountings for motor fan assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0693—Details or arrangements of the wiring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • 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
    • 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
    • H02K1/165—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • 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
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/20—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar machine
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • 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
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1735—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at only one end of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/06—Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/12—Machines characterised by the bobbins for supporting the windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
    • H02K2211/03—Machines characterised by circuit boards, e.g. pcb
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present disclosure belongs to the technical field of mechanical design, and in particular relates to a stator, a fan and a cleaning device.
  • the fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. Fan is the habitual abbreviation for gas compression and gas conveying machinery in China. Generally speaking, fans include ventilators, blowers, and wind generators.
  • the fan includes a stator and a rotor, but the existing stator coils are chaotically arranged between the coils, and the lines of each phase are also arranged in disorder, and the phase lines are easily staggered, which is easy to cause the phase lines to conduct, resulting in stator failure. As a result, the fan cannot discharge air, and the service life of the fan is shortened.
  • the purpose of the present disclosure is to provide a stator and a fan, wherein the depths of the first lead grooves of the insulation bobbins corresponding to the same-phase winding coils are the same, and the insulation bobbins corresponding to the different-phase winding set coils have the same depth.
  • the depths of the first lead slots are different, so that in the circumferential direction of the outer ring of the stator, the wires of different phases are staggered in height, so that the wires of each phase of the stator are arranged neatly, and the stator will not be turned on due to staggering. risk, improve the service life and safety of the stator.
  • a first aspect of the present disclosure provides a stator, comprising: an annular stator outer ring; a plurality of uniformly distributed stator teeth are connected on the inner side of the stator outer ring in the circumferential direction; the stator teeth are along the The radial arrangement of the outer ring of the stator; each coil of the winding group is correspondingly provided with an insulating wire frame, and each of the insulating wire frames is arranged on the axial direction of the outer ring of the stator; the insulating wire frame is provided with a first lead slot , the first lead slot is used to lead out one end of the coil of the winding set and connect it with the winding set coil belonging to the same phase in the circumferential direction around the outer circumference of the outer ring of the stator; the corresponding winding set coil belonging to the same phase
  • the depths of the first lead grooves of the insulating bobbins are the same, and the depths of the first lead grooves of the insulating bobbins corresponding to the
  • the span of the stator is one.
  • the number of stator teeth is even.
  • the outer ring of the stator is surrounded by a plurality of stator units in the shape of a ring sector connected in a chain; each of the stator units is connected with the stator teeth, and each of the insulating wire frames is arranged on the on the stator unit.
  • stator outer ring is after the stator teeth are wound to form the winding coil, and one end of the winding coil is drawn out through the insulating bobbin and surrounds the stator outer ring After the outer circumferential extension of the outer part and the coils belonging to the same phase are connected, the first stator unit and the last stator unit are connected, and the connecting lines of all adjacent stator units are formed by welding.
  • stator teeth away from the outer ring of the stator is recessed inward to form an arc-shaped structure; the circle enclosed by the arc-shaped structure of the stator teeth is used to accommodate a rotor with two poles; the The number of stator teeth is 6;
  • the number of phases of the stator is three-phase.
  • the outer ring of the stator sequentially includes a first winding set coil, a second winding set coil, a third winding set coil, a fourth winding set coil, a fifth winding set coil and A sixth winding coil; wherein the first end of the first winding coil and one end of the fourth winding coil are connected to form the first phase of the stator, the first end of the second winding coil and the fifth winding One end of the winding set coil is connected to form the second phase of the stator, the first end of the third winding set coil and one end of the sixth winding set coil are connected to form the third phase of the stator, so that the same phase The included angle between the two coils of the winding set is 180°.
  • the wire clamping portion is arranged on a side of the sixth insulating wire frame corresponding to the coil of the sixth winding group that is far away from the stator teeth; the sixth insulating wire frame includes a second lead slot, so The second lead slot is used to lead the outgoing end of each phase to the wire clamping portion.
  • the insulating bobbins corresponding to the coils of the first winding group, the coils of the third winding group and the coils of the fifth winding group are all provided with a third lead slot, and the third lead slot is used to connect the The outlet end is drawn out; the outlet end of each phase is connected to the circuit board through the lead wire.
  • the 6 coils of the winding group are connected in a "Y" or delta connection to form three phases of the stator.
  • the number of branches in the winding coils belonging to the same phase is 1.
  • the number of parallel branches in the winding coils belonging to the same phase is 2.
  • the yoke of the stator is provided with a semicircular hole for positioning the axial diffuser of the fan; the semicircular hole is provided on the center line of the stator teeth.
  • a connecting column matching the connecting hole of the axial diffuser is provided, and the connecting column is used for assembling the axial diffuser. press.
  • a fan including a rotor and the stator provided by the above embodiments; the rotor is a permanent magnet with two poles.
  • circuit board is also included; the outgoing terminals of each phase of the stator are connected to the circuit board through lead wires.
  • the axial diffuser which is fixedly connected to the stator, the axial diffuser includes an outer cylinder, a main body part arranged in the outer cylinder, and a connection between the outer cylinder and the main body part.
  • the diffuser blade, the diffuser blade divides the annular space between the outer cylinder and the main body part into a plurality of diffuser air ducts, the main body part has a central shaft hole;
  • the axial diffuser is fixedly connected, an impeller chamber and an annular grid-free channel surrounding the impeller chamber are formed between the air cover and the axial diffuser, and the annular grid-free channel communicates with the impeller chamber and the diffuser air duct, the hood has an air inlet; an impeller is arranged in the impeller chamber, the impeller is used to introduce air from the air inlet, and is driven by the impeller to pass through the air.
  • the annular non-grid channel enters the diffuser air duct and flows out from the other end of the diffuser air duct.
  • a cleaning device including the blower provided in the second aspect.
  • the depths of the first lead slots of the insulating bobbins corresponding to the same-phase winding coils are the same, and the first leads of the insulating bobbins corresponding to the different-phase winding coils
  • the depths of the slots are different, so that in the circumferential direction outside the outer ring of the stator, the heights of the wires of different phases are staggered, so that the wires of each phase of the stator are arranged neatly, and the risk of conduction of the stator due to staggering will not be caused. the service life and safety of the stator.
  • FIG. 1a is a schematic structural diagram of a stator according to an embodiment of the present disclosure
  • Figure 1b is a side view of the stator shown in Figure 1a;
  • Fig. 1c is a perspective view of the stator shown in Fig. 1b;
  • FIG. 2a is a schematic structural diagram of a chain-connected stator unit according to an embodiment of the present disclosure
  • FIG. 2b is a partial schematic view of a chain-connected stator unit according to an embodiment of the present disclosure
  • Fig. 2c is a schematic diagram of a plurality of stator units enclosing a stator according to an embodiment of the present disclosure
  • FIG. 3 is a schematic circuit diagram of a three-phase stator provided according to an embodiment of the present disclosure
  • FIG. 4 is a schematic circuit diagram of a three-phase stator according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic exploded view of the structure of a fan provided according to an embodiment of the present disclosure
  • FIG. 6 shows a schematic cross-sectional structure diagram of a fan according to an embodiment of the present application
  • Fig. 7 shows the enlarged view of part A in Fig. 6;
  • Fig. 8 shows the enlarged view of part B in Fig. 6;
  • FIG. 9 shows a schematic end view of the assembly of an impeller and a diffuser in a fan according to an embodiment of the present disclosure
  • FIG. 10 shows a schematic cross-sectional structure diagram of a fan according to another embodiment of the present disclosure.
  • stator 1: stator; 11: stator outer ring; 111: stator unit; 1111: insulated wire frame; 112: semi-circular hole; 113: connecting column; 12: stator tooth; 121: arc structure; 13: winding coil: 13A: lead wire; 13B: terminal of the winding coil; 131: first coil; 132: second coil; 133: third coil; 134: fourth coil; 135: fifth coil; 136: sixth coil; 14: Stator slot; 141: Stator slot slot; 15: Wire clip; 16: Jumper; 2: Rotor; 3: Axial diffuser; 31: Outer cylinder; 32: Main body; 33: Diffuser Blade; 34: Diffuser duct; 35: Center shaft hole; 36: Positioning column; 37: Connecting hole; 4: Air cover; 41: Air inlet; 42: Second annular protrusion; 5: Impeller; 6: Bearing ;7: circuit board; 8: annular channel without grid; 9: impeller chamber; 10: motor shaft.
  • FIG. 1 A schematic diagram of a layer structure according to an embodiment of the present disclosure is shown in the accompanying drawings.
  • the figures are not to scale, some details are exaggerated for clarity, and some details may have been omitted.
  • the shapes of the various regions and layers shown in the figures, as well as their relative sizes and positional relationships are only exemplary, and in practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art should Regions/layers with different shapes, sizes, relative positions can be additionally designed as desired.
  • Fig. 1a is a schematic structural diagram of a stator according to an embodiment of the present disclosure
  • Fig. 1b is a side view of the stator shown in Fig. 1a
  • Fig. 1c is a perspective view of the stator shown in Fig. 1b.
  • the stator 1 includes: an annular stator outer ring 11 , stator teeth 12 , and a winding coil 13 sleeved outside the stator teeth 12 .
  • the inner side of the stator outer ring 11 is connected with a plurality of stator teeth evenly distributed in the circumferential direction.
  • the stator teeth 12 are arranged along the radial direction of the stator outer ring 11 ; the outer portion of each of the stator teeth is sleeved with a winding set coil.
  • Each of the winding coils 13 is provided with an insulating wire frame 1111 correspondingly, and each of the insulating wire frames 1111 is arranged in the axial direction of the stator outer ring 11 .
  • the insulating bobbin 1111 is provided with a first lead slot, and the first lead slot is used to lead out one end of the winding coil and surround the outer circumferential direction of the outer ring of the stator 11 with the windings belonging to the same phase. Group coil connections.
  • the depths of the first lead grooves of the insulating wire frame 1111 corresponding to the winding coils belonging to the same phase are the same, and the depths of the first lead grooves of the insulating wire frame 1111 corresponding to the winding coils of different phases are different, so that the In the circumferential direction of the outer portion of the stator outer ring 11 , the lines of different phases are staggered in height. In this way, the lines of each phase of the stator can be arranged neatly, and the risk of conduction of the stator due to staggering is not caused, and the service life and safety of the stator are improved.
  • the one winding coil 13 is only sleeved on the outside of one of the stator teeth 12 .
  • the span of the coil of the winding set is 1, wherein the coil of the winding set adopts a span of 1, which can improve production efficiency, and the coil is bundled on one tooth, which can improve the stiffness of the coil and the iron core at the same time, and reduce noise.
  • the rotor of the motor is a magnet with two poles, which is located inside the outer ring of the stator, and the rotor is a columnar structure, and the S pole and the N pole are both semi-cylindrical.
  • the magnetic field direction of the rotor of this motor is in the circumferential direction of the outer ring of the stator, that is, the winding coils in the axial direction of the outer ring of the stator are effective, and the windings perpendicular to the axial direction of the outer ring of the stator are effective.
  • the coil of the wire group is invalid, so the coil with a span greater than 1, because the length of the coil in the vertical axis is relatively long, and crosses many stator slots, which will cause the invalid copper wire to be relatively long, resulting in waste of copper wire and resistance. large, the copper loss is high, and the efficiency is relatively low.
  • a coil with a span of 1 Although the winding coefficient is low (that is, the output torque of this coil under the same current is smaller), but because the span is 1, that is, one such coil
  • the coil of the winding set is only wound on one stator tooth, which can make the ineffective copper wire of the winding set coil short, the copper loss of the copper wire is small, and the efficiency is high.
  • a coil with a span greater than 1 has a high winding coefficient, it needs to span multiple stator teeth and stator slots, which will lead to ineffective copper wire length, large resistance, and high copper loss.
  • the efficiency of causing the rotation of the stator is not much different from the efficiency of the coil with a span of 1 in the present disclosure, but the coil in the present disclosure has a span of 1, which reduces the use of connecting wires, reduces the amount of copper used, and can be bundled in On the stator teeth, the stiffness of the stator teeth is improved, so that the production efficiency and the use efficiency of the stator are improved.
  • the number of stator teeth of the stator is an even number.
  • the outer ring of the stator is connected with an even number of stator teeth evenly distributed, and the number of stator slots in the present disclosure is the same as the number of stator teeth, which is also an even number, that is, the number of stator slots in the present disclosure is also an even number.
  • An even number can reduce the unbalanced radial magnetic pulling force of the stator during rotation, reduce electromagnetic vibration, and reduce the noise of the motor during use.
  • FIG. 2a is a schematic structural diagram of a chain-connected stator unit according to an embodiment of the present disclosure.
  • the outer ring of the stator is surrounded by a plurality of stator units 111 in the shape of a ring sector connected in a chain; each of the stator units 111 is connected with the stator teeth, and each of the insulated wires
  • the frames 1111 are all arranged on the stator unit 111 .
  • the stator unit is made of high-frequency silicon steel material, and the outer ring of the stator is set to be surrounded by a plurality of stator units in the shape of a ring sector connected by a chain, so that when the outer ring of the stator is processed , it is possible to set two chain-type stator outer rings to cross, that is, to set the stator teeth of the second stator outer ring between the two stator teeth of the first stator outer ring, so that the die can be stamped to produce two stator outer rings at one time, Moreover, the two stator outer rings are staggered, which can greatly save silicon steel sheets compared to producing one stator outer ring at a time.
  • the outer ring of the stator is connected in a chain, the wire can be directly wound on each stator tooth, so that all the stator teeth are wound at the same time, which improves the production efficiency and avoids embedding the coil in the stator slot.
  • the stator outer ring provided by the embodiment of the present disclosure can also make the coil neatly and tightly wrap the stator teeth, improve the stiffness of the stator teeth, and protect the stator teeth. And tight coils can also be reduced.
  • the coil of the winding group is embedded in the stator slot, and then the position of the winding group is fixed in the stator slot.
  • the present disclosure obtains a compact winding group by directly winding the wires on the stator teeth, while obtaining the same slot filling rate, it can use more Fewer copper wires.
  • FIG. 2b is a partial schematic view of a chain-connected stator unit according to an embodiment of the present disclosure
  • FIG. 2c is a schematic view of a plurality of stator units enclosing a stator according to an embodiment of the present disclosure.
  • the stator outer ring 11 is formed after the stator teeth 12 are wound to form the winding coil 13 , and the insulating bobbin 1111 is used to separate the stator outer ring 11 .
  • the first stator unit and the last stator unit are connected, and all phases are connected.
  • the connecting wires of the adjacent stator units are formed by welding.
  • welding is used for the connecting lines of adjacent stator units.
  • the winding of the stator teeth and the connection of the same phase wire are completed first, and then the chain-connected stator units are welded.
  • the outgoing wires of one end of the stator unit and the fourth stator unit are connected in a straight line along the length direction of the stator unit chain.
  • the first stator unit and the fourth stator unit are outside the outer ring of the stator.
  • the circumferential direction will be arranged along the arc of the outer ring of the stator, which can make the connecting wires of the same phase tight and not loose, and reduce the noise of the stator.
  • point A in Figures 2b and 2c is one end of the insulation wire frame 1111 of the previous stator unit
  • point B is one end of the insulation wire frame of the next stator unit close to point A
  • point C is the welding point.
  • the connecting line will directly go from point A to point B. After the stator unit is surrounded by the outer ring of the stator, the connecting line from point A to point B will be close to the arc of the outer circumference of the stator. , so that the connecting wire is tightened and will not loosen.
  • one end of the stator teeth of the present disclosure away from the outer ring of the stator is recessed inward to form an arc-shaped structure 121 .
  • the arc-shaped structures of the two adjacent stator teeth are not connected, so that the stator slots 14 formed by the two adjacent stator teeth and the outer ring of the stator, and the circular arc-shaped structures 121 of the adjacent two stator teeth A predetermined distance in the circumferential direction, the space between the two arc-shaped structures in the circumferential direction is the slot 141 of the stator slot.
  • the circle enclosed by the arc-like 121 structure of the stator teeth is used to accommodate the rotor 2 with two poles.
  • the number of stator teeth is 6, and the number of stator slots is also 6.
  • the number of phases of the stator is three-phase, that is, each phase is provided with 2 winding coils, and the number of parallel branches of the two winding coils is 1 or 2, that is, the two winding coils can be connected in series or in parallel.
  • the included angles of the two coils belonging to the same phase differ by 180°.
  • the stator also includes jumpers 16 . After both ends of the two winding coils belonging to the same phase are drawn out through the first lead slot of the insulating bobbin 1111, the two outgoing ends of the winding coils can be respectively connected through the jumper 16, so that the two coils form A phase line.
  • the insulating wire frame 1111 may be integrally formed on the stator unit 111, or may be detachably disposed on the stator unit 111 (in the stator unit shown in FIG. 2, the insulating wire frame 1111 is not shown). ), for example, glued on the stator unit 111 by gluing, or may be fastened on the stator unit by means of fasteners, such as screws or stators.
  • the insulating wire frame 1111 may include a base and three protruding parts disposed on the base, wherein the three protruding parts have the same height, and the three protruding parts form a line and are arranged at intervals to form A first lead slot and a second lead slot.
  • the first lead slot is used to lead out one end of the winding coil and connect it to the winding coil belonging to the same phase in the circumferential direction around the outer portion of the stator outer ring 11 .
  • the insulating wire frame 1111 may be a rectangular parallelepiped-shaped component, and two lead grooves are formed by etching in the length direction.
  • the groove depths of the two lead grooves can be the same or different, and the widths of the two lead grooves can be the same or different.
  • the outgoing terminals of the three phases are connected to the circuit board of the fan through the lead 13A.
  • the stator outer ring 11 includes a first winding coil, a second winding coil, a third winding coil, a fourth winding coil, and a fifth winding in sequence along the circumferential direction of the stator outer ring 11 .
  • the stator further includes: a wire clip portion.
  • the wire clamping portion is arranged on the side of the sixth insulating wire frame corresponding to the sixth winding group coil away from the stator teeth 12; the sixth insulating wire frame includes a second lead slot, and the first Two lead grooves are used to lead out the outgoing end of each phase to the wire clamping part.
  • the wire clamping portion may be a U-shaped groove structure.
  • the depth of the first corresponding first lead groove is greater than the depth of the second corresponding lead groove, and the depth of the second corresponding first lead groove is greater than the depth of the third corresponding first lead groove depth.
  • the above-mentioned six coils of the winding group are connected by "Y" connection or delta connection.
  • the 6 coils of the winding group are connected by the Y connection method, and the two coils are connected in series through the lead wire 16 to form a phase line, and one end of the phase line is a coil's One end, the other end of the phase wire is one end of the other coil. Then, one end of each of the three phase wires is connected to a terminal through the wire clamping part 15, and the other end of each phase wire is used as the outlet end of the phase wire.
  • the other ends of the first winding group coil, the third winding group coil and the fifth winding group coil are used as the outgoing end of the three-phase, thereby obtaining the three-phase of the stator, wherein the outgoing end of each phase line can pass the lead 13A Connect to the fan's circuit board.
  • the insulating bobbins corresponding to the coils of the first winding group, the coils of the third winding group, and the coils of the fifth winding group are all provided with a third lead slot, and the third lead slot is used to connect the The outlet end of each phase is drawn out; the outlet end of each phase is connected to the circuit board of the fan through the lead wire 13A.
  • the terminals are disposed outside of one side of the bobbin 1111 remote from the winding coils.
  • the six winding coils are wired in a delta connection.
  • three phase wires are obtained by connecting the coils of the same phase, and the six ends of the three phase wires are connected in sequence to obtain three phases.
  • the three outlet ends of the first phase line are connected with the head end of the second phase line, the connected end is used as an outlet end of the three-phase line, and the tail end of the second phase line is connected with the head end of the third phase line.
  • the connected end is used as the other outlet end of the three-phase line, the tail end of the third phase line is connected with the head end of the first phase line, and the connected end point is used as the last outlet end of the three-phase line.
  • the six ends of the three phase wires may be connected by jumper wires 16 .
  • FIG. 3 is a circuit diagram of a three-phase stator according to an embodiment of the present disclosure.
  • the number of parallel branches in the winding coils belonging to the same phase is 1, that is, the tail end of one winding coil in the same phase and the other winding coil in the same phase are connected in parallel.
  • the head ends are connected so that a branch is formed, that is, the coils of the windings of the same phase are connected in series.
  • the six stator coils respectively include: a first coil 131 , a second coil 132 , a third coil 133 , a clockwise direction or a counterclockwise direction along the circumferential direction of the outer ring of the stator, a first coil 131 , a second coil 132 , a third coil 133 , The fourth coil 134 , the fifth coil 135 , and the sixth coil 136 .
  • the first coil and the fourth coil are set as U-phase
  • the second coil and fifth coil are set as V-phase
  • the third coil and sixth coil are set as W-phase
  • the included angle between the two coils belonging to the same phase is 180°
  • Two coils belonging to the same phase are connected in series to form a branch.
  • FIG. 4 is a circuit diagram of a three-phase stator provided by an embodiment of the present disclosure.
  • the number of parallel branches in the winding coils belonging to the same phase is 2, that is, the head end of one winding group coil in the same phase is connected to the head end of another winding group coil in the same phase.
  • the tail end of one winding coil is connected to the tail end of the other winding coil of the same phase so that two branches are formed, ie the winding coils of the same phase are connected in parallel.
  • the six stator coils respectively include: a first coil, a second coil, a third coil, a fourth coil, and a clockwise direction or a counterclockwise direction along the circumferential direction of the outer stator ring 11 .
  • Coil, Fifth Coil, Sixth Coil are set as U-phase
  • the second coil and the fifth coil are set as V-phase
  • the third and sixth coils are set as W-phase
  • the two coils belonging to the same phase are separated and connected in parallel to obtain two branches .
  • the yoke of the stator is provided with a semicircular hole 112 for positioning the axial diffuser of the fan; the center of the semicircular hole 112 is set on the centerline of the stator teeth.
  • FIG. 5 is a schematic exploded view of the structure of a fan provided by an embodiment of the present disclosure.
  • the fan includes: the stator 1 and the rotor 2 provided in the foregoing embodiments, and the rotor 2 is a permanent magnet with two poles.
  • the fan further includes a circuit board 7 .
  • the outgoing terminals of each phase of the stator are connected to the circuit board through lead wires 13A.
  • one outlet end of each phase of the coils of the stator is connected to the circuit board 7 after adopting "Y" connection or delta connection, and is connected to the power supply through the circuit board 7 .
  • one outgoing terminal of each phase can be connected to the circuit board 7 through the lead 13A.
  • the fan also includes: axial diffuser 3, air cover 4 and impeller 5.
  • the axial diffuser 3 is fixedly connected to the stator 1, and the axial diffuser 3 includes an outer cylinder 31, a main body 32 arranged in the outer cylinder 31 and connecting the outer cylinder 31 and the main body
  • the diffuser vanes 33 of the part 32 divide the annular space between the outer cylinder 31 and the main body 32 into a plurality of diffuser air ducts 34, the main body 32 having a center Axle hole 35.
  • the air cover 4 is fixedly connected with the axial diffuser 3, and an impeller chamber 9 and an annular grating-free channel 8 surrounding the impeller chamber are formed between the air cover 4 and the axial diffuser 3.
  • the annular grid-free channel communicates with the impeller chamber 9 and the diffuser air duct, and the air mask 4 has an air inlet;
  • the impeller 5 is arranged in the impeller chamber 9 , and the impeller 5 is used to introduce air from the air inlet 41 , and is driven by the impeller 5 to enter the expansion chamber through the annular grating-free passage 8 .
  • the compressed air duct flows out from the other end of the diffuser air duct.
  • the radial diffuser is cancelled, and the axial diffuser 3 is used.
  • the flow tends to be stable and the generation of vortices in the flow channel is reduced.
  • Radial expansion is canceled. It can effectively reduce wind resistance, reduce energy loss, and improve the working efficiency of the fan. Increase the "dynamic and static gap", so that the "dynamic and static interference” effect of the fan when working is weakened, and the noise of the fan is reduced.
  • the radial diffuser is generally provided with axial diffuser vanes at the position of the annular grating-free channel 8 of the present disclosure to form a radial air channel, which is often very close to the vanes. After the air comes out of the impeller 5, it directly hits the radial diffuser. On the leading edge of the blade 33, a strong "dynamic and static interference" occurs. A large number of documents have proved that the "dynamic and static interference" generated by the rotor 2 and stator 1 blades is an important part of the fan noise.
  • the fan in the embodiment of the present disclosure cancels the radial diffuser, and adopts the axial diffuser 3 to increase the "dynamic and static gap", which is a very powerful means to improve the noise of the fan.
  • the diameter of the fan can be reduced accordingly.
  • the problems such as shortening the service life of the bearing 6 and increasing the noise of the fan caused by having to increase the power due to the increase of the diameter of the fan are avoided.
  • the outer diameter of the main body 32 of the axial diffuser 3 is equal to the outer diameter of the stator 1 , so that the air flowing out from the diffuser air duct 34 flows through the outside of the stator 1 .
  • the outer diameter of the main body 32 of the axial diffuser 3 is equal to the outer diameter of the stator 1 , so that the fluid can flow out from the axial diffuser 3 through the outer ring of the stator 1 without obstacles. Flowing from outside the stator 1 reduces wind resistance and improves fluid efficiency.
  • the outer diameter of the main body portion 32 of the axial diffuser 3 is equal to the outer diameter of the stator 1 , not absolutely equal, and a certain error is allowed.
  • the error between the two is 1%, 3%, 5%, 7%, 10% and so on.
  • one of the axial diffuser 3 and the stator 1 includes a plurality of positioning posts 36
  • the other of the axial diffuser 3 and the stator 1 includes a plurality of semicircular holes adapted to the positioning posts 36 . 112.
  • the axial diffuser 3 and the stator 1 are respectively provided with positioning posts 36 and semi-circular holes 112 correspondingly to facilitate the connection and fixation of the axial diffuser 3 and the stator 1 .
  • the positioning post 36 may be provided on either one of the axial diffuser 3 and the stator 1, and the semicircular hole 112 may be provided on the other.
  • the positioning posts 36 may be provided on the axial diffuser 3 while the semicircular holes 112 are provided on the stator 1 .
  • the positioning post 36 extends in the axial direction of the axial diffuser 3 .
  • some of the diffuser vanes 33 of the diffuser vanes 33 of the axial diffuser 3 extend along the axial direction of the axial diffuser 3 to form the positioning posts 36
  • the stator 1 includes the semi-circular holes 112 .
  • the number of locating posts 36 is not the same as the number of diffuser vanes 33 . In general, the number of locating posts 36 may be less than the number of diffuser vanes 33 . Therefore, when the positioning column 36 is disposed on the axial diffuser 3 , the positioning column 36 may be formed by extending part of the diffuser vanes 33 in the axial direction.
  • 3 diffuser vanes 33 out of 12 diffuser vanes 33 extend in the axial direction to form positioning posts 36 .
  • the diffuser vanes 33 extend along the axial direction of the axial diffuser 3 to form the positioning posts 36 , which can make the positioning posts 36 have sufficient strength without affecting the structure of the axial diffuser 3 . And at the same time can reduce the consumption of materials.
  • it is avoided that the thickness of the position where the positioning column 36 is located must be increased.
  • the ends of the diffuser vanes 33 may integrally extend along the axial direction of the axial diffuser 3 to form the positioning posts 36 . Parts of the ends of the diffuser vanes 33 may also extend in the axial direction of the diffuser 3 to form the positioning posts 36 .
  • the partial body of the end of the diffuser vane 33 extends along the axial direction of the diffuser 3 to form the positioning post 36
  • the side of the diffuser vane 33 close to the main body 32 can be axially along the diffuser 3 .
  • the axial extension of the locating post 36 is formed.
  • the positioning posts 36 may be formed on the body portion 32 .
  • the locating post 36 may be located on the body portion 32 at a location corresponding to the diffuser vane 33 .
  • a positioning post may be partially formed on the body portion 32 and partially extended from the diffuser vanes 33 .
  • the semicircular hole 112 may be a hole slot or an open slot.
  • a semicircular hole 112 is concavely formed on the outer peripheral surface of the stator 1 .
  • the outer peripheral surface of the semicircular hole 112 is concave to form an open groove, which not only ensures stable positioning, but also saves materials while ensuring strength.
  • the wall surface of the semicircular hole 112 is a cylindrical surface, and the positioning post 36 has a cylindrical surface matching the wall surface of the semicircular hole 112 .
  • the wall surface of the semicircular hole 112 and the corresponding matching surface of the positioning column 36 are cylindrical surfaces, which effectively ensures the stability of the combination of the two.
  • the positioning post 36 is a semi-cylindrical body.
  • One side of the positioning column 36 has a cylindrical surface matching with the wall surface of the semi-circular hole 112 , and the other side is matching with the peripheral surface of the stator 1 .
  • the semicircular hole 112 may be set at any position on the circumferential surface of the stator 1 .
  • the semicircular hole 112 is located on the outer peripheral surface corresponding to the tooth centerline of the stator 1 .
  • the semicircular holes 112 are provided on the outer peripheral surface opposite to the teeth of the stator 1 . There is enough space for the semicircular hole 112 in this part, and the strength is ensured, and it is not necessary to increase the thickness and other dimensions of the part where the semicircular hole 112 is located, thereby increasing the material consumption.
  • the numbers of the semicircular holes 112 and the positioning posts 36 are not specifically limited, for example, they may be 2, 3, 4, and so on.
  • a plurality of semicircular holes 112 are distributed on a circumference.
  • a plurality of positioning posts 36 are also distributed evenly on a circumference. The diameters of the two circles are the same.
  • the semi-circular holes 112 and the positioning posts 36 are evenly distributed on their respective circumferences, and when the axial diffuser 3 and the stator 1 are connected, it is not necessary to limit the two in a specific orientation. Any one of the positioning posts 36 can be matched with any one of the semicircular holes 112 .
  • the fixed connection manner between the axial diffuser 3 and the stator 1 is not limited.
  • the axial diffuser 3 and the stator 1 may be bonded by glue, or connected by an interference fit, or connected by a threaded member, or the like.
  • one or more connecting posts 113 in the axial diffuser 3 and one or more connecting holes 37 in the stator 1 are matched with the connecting posts 113 .
  • one or more connecting holes in the axial diffuser 3 , and one or more connecting posts adapted to the connecting holes are arranged in the stator 1 .
  • the connecting column 113 is provided in the stator as an example.
  • the axial diffuser 3 and the stator 1 are connected together with the connecting hole 37 through the connecting column 113 .
  • the connection post 113 and the hole wall of the connection hole 37 are fixedly connected by glue. In this way, glue can be applied in a specific position to avoid defects such as glue overflow.
  • the connection post 113 and the connection hole 37 are fixedly connected by interference fit.
  • the axial diffuser 3 includes a plurality of connecting holes 37
  • the stator 1 includes a plurality of connecting posts 113 that are matched with the connecting holes 37 .
  • a plurality of connection holes 37 may be provided on the main body portion 32 .
  • the corresponding connecting column 113 and the connecting hole 37 and the corresponding positioning column 36 and the semicircular hole 112 may be included at the same time.
  • the circles where the corresponding connecting posts 113 and the connecting holes 37 are located are collinear with the axis lines of the circles where the corresponding positioning posts 36 and the semicircular holes 112 are located.
  • the radius of the circle where the corresponding connection post 113 and the connection hole 37 are located may be smaller than the radius of the circle where the corresponding positioning post 36 and the semicircular hole 112 are located.
  • the length of the connecting post 113 is less than the length of the positioning post 36 .
  • the end surface of the outer cylinder 31 close to the air cover 4 has a first annular protrusion 38, so that the end surface of the outer cylinder 31 forms a first stepped surface, and the outer wall surface of the outer cylinder 31 extends axially to form an annular shape.
  • Protrusion; the air mask 4 has a second annular protrusion 42, so that the end face of the air mask 4 connected to the outer cylinder 31 forms a second stepped surface, and the second stepped surface is adapted to the first stepped surface.
  • a stepped surface is provided at the part where the outer tube 31 is connected with the air cover 4, which can make the transition of the inner wall surface of the part where the air cover 4 and the outer tube 31 connect more smoothly, and reduce the interference to the fluid.
  • the number of blades of the impeller 5 is odd.
  • the number of blades of the impeller 5 is 3, 5, 7, 9, 11, and the like.
  • the number of blades of the impeller 5 is an odd number, which can reduce asymmetrical injection residual stress and reduce resonance.
  • the number of blades of the impeller 5 and the number of the diffuser blades 33 are not multiples of each other.
  • the number of the diffuser vanes 33 is selected to be a number that cannot divide the number of vanes of the impeller 5 , so that air noise can be reduced.
  • the number of vanes of the impeller 5 is seven, and the number of the diffuser vanes 33 is twelve.
  • the number of diffuser vanes 33 is a multiple of three.
  • the number of the diffuser vanes 33 is a multiple of 3 to facilitate the positioning of the positioning posts 36 .
  • Three positioning columns 36 can ensure the positioning of the axial diffuser 3 and the stator 1 .
  • the positioning posts 36 are evenly distributed on the circumference, using the assembly of the axial diffuser 3 and the stator 1 .
  • the number of the diffuser vanes 33 being a multiple of 3 can ensure the uniform distribution of the positioning columns 36 .
  • the number of diffuser vanes 33 may be, for example, 9, 12, 15, or the like. Of course, in the embodiment of the present disclosure, it is not excluded that the number of diffuser vanes 33 is a number other than a multiple of 3.
  • the number of vanes of the impeller 5 is less than the number of the diffuser vanes 33 . While the blades of the impeller 5 meet the suction efficiency, the number of the diffuser blades 33 also meets the rectification efficiency.
  • the diffuser vanes 33 may be inclined. That is, the diffuser vanes 33 are not parallel to the axis of the axial diffuser 3 .
  • the axis of the diffuser air duct 34 is also not parallel to the axis of the axial diffuser 3 .
  • the included angle formed between the axis of the diffuser air duct 34 and the axis of the axial diffuser 3 may be 10°-45°.
  • the axial diffuser 3 is assembled on the motor shaft 10 through the bearing 6 .
  • the impeller 5 is fixed on the motor.
  • the fan in the embodiment of the present disclosure further includes a rotor 2 and a circuit board 7 .
  • the rotor 2 is fixed on the motor shaft 10 .
  • the circuit board 7 is connected to the stator 1 .
  • An embodiment of the present disclosure provides a cleaning apparatus, which includes the blower of any of the foregoing embodiments.
  • the fan in the cleaning device cancels the radial diffusion, and adopts the axial diffuser 3 , and the chaotic airflow from the impeller 5 passes through the annular grating-free channel 8 and directly enters the axial diffuser 3 , after the diversion of the diffuser vanes 33 of the axial diffuser 3, the flow tends to be stable and the generation of vortices in the flow channel is reduced.
  • Radial expansion is canceled. It can effectively reduce wind resistance, reduce energy loss, and improve the working efficiency of the fan. Increase the "dynamic and static gap", so that the "dynamic and static interference" effect of the cleaning equipment is weakened, and the noise of the fan is reduced.
  • the radial diffuser is generally arranged at the position of the annular non-grid channel 8, which is often very close to the blades. After the air comes out of the impeller 5, it directly hits the leading edge of the radial diffuser blade 33, resulting in strong "dynamic and static interference".
  • the fan of the cleaning device of the embodiment of the present disclosure cancels the radial diffuser, and adopts the axial diffuser 3 to increase the "dynamic and static gap", which is a very powerful means to improve the noise of the fan.
  • the diameter of the fan can be reduced accordingly.
  • the problems such as shortening the service life of the bearing 6 and increasing the noise of the fan caused by having to increase the power due to the increase of the diameter of the fan are avoided.
  • a cleaning device provided with the blower according to any one of the above technical solutions.
  • the cleaning equipment in this embodiment includes a cleaning robot, a hand-held vacuum cleaner, and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

本公开公开了一种定子及风机，该定子包括：呈圆环状的定子外圈；所述定子外圈的内侧的周向上连接有均匀分布的多个定子齿；所述定子齿沿着定子外圈的径向设置；每个所述定子齿的外部均缠绕有绕线组线圈，属于同相的绕线组线圈对应的所述绝缘线架的第一引线槽的深度相同，不同相的绕线组线圈对应的所述绝缘线架的第一引线槽的深度彼此不同，以使位于所述定子外圈的外部的周向上，不同相的线高低错落，使得定子的各相的线排布整齐。

Description

一种定子、风机及清洁设备
相关申请的交叉引用
本申请要求于2020年9月14日递交的中国专利申请第202010963271.2号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开属于机械设计技术领域，尤其是涉及一种定子、风机及清洁设备。
背景技术
风机是依靠输入的机械能，提高气体压力并排送气体的机械，它是一种从动的流体机械。风机是中国对气体压缩和气体输送机械的习惯简称，通常所说的风机包括通风机，鼓风机，风力发电机。
风机主要应用于冶金、石化、电力、城市轨道交通、纺织、船舶等国民经济各领域以及各种场所的通风换气。除传统应用领域外，在煤矸石综合利用、新型干法熟料技改、冶金工业的节能及资源综合利用等20多个潜在的市场领域仍将有较大的发展前景。
通常风机都包括定子和转子，而现有的定子各个绕线组线圈之间走线混乱，而且每相的线也排列混乱，相线之间容易交错，容易造成相线导通，导致定子故障从而造成风机无法出风，使得风机使用寿命短。
发明内容
(一)发明目的
本公开的目的是提供一种定子及风机，其中属于同相的绕线组线圈对应的所述绝缘线架的第一引线槽的深度相同，不同相的绕线组线圈对应的所述绝缘线架的第一引线槽的深度不同，以使位于所述定子外圈的外部的周向上，不同相的线高低错落，使得定子的各相的线排布整齐，不会造成由于交错导致定子导通的风险，提高了定子的使用寿命和安全性。
(二)技术方案
本公开的第一方面提供了一种定子，包括：呈圆环状的定子外圈；所述定子外圈的内侧的周向上连接有均匀分布的多个个定子齿；所述定子齿沿着定子外圈的径向设置；每个绕线组线圈均对应设置有绝缘线架，每个所述绝缘线架设置在定子外圈的轴向上；所述绝缘线架设置有第一引线槽，所述第一引线槽用于将所述绕线组线圈的一端引出并围绕所述定子外圈的外部的周向上与属于同相的绕线组线圈连接；属于同相的绕线组线圈对应的所述绝缘线架的第一引线槽的深度相同，不同相的绕线组线圈对应的所述绝缘线架的第一引线槽的深度彼此不同。
在一些实施例中，定子的跨距为1。
在一些实施例中，定子齿的个数为偶数个。
进一步地，所述定子外圈是通过链式连接的多个呈环扇形的定子单元围成的；每个所述定子单元均连接有所述定子齿，每个所述绝缘线架均设置在所述定子单元上。
进一步地，所述定子外圈是在所述定子齿完成绕线形成所述绕线组线圈之后，且通过所述绝缘线架将所述绕线组线圈的一端引出并围绕所述定子外圈的外部的周向延伸且与属于同相的绕线组线圈连接之后，将首位的所述定子单元和尾位的定子单元连接，并对所有相邻的定子单元的连接线采用焊接形成的。
进一步地，所述定子齿远离所述定子外圈的一端向内凹陷形成圆弧状结构；由所述定子齿的所述圆弧状结构围成的圆用于容纳具有两极的转子；所述定子齿的个数为6；
所述定子的相数为三相。
进一步地，沿着所述定子外圈周向方向依次包括第一绕线组线圈、第二绕线组线圈、第三绕线组线圈、第四绕线组线圈、第五绕线组线圈和第六绕线组线圈；其中第一绕线组线圈的第一端和第四绕线组线圈的一端连接，以形成定子的第一相，第二绕线组线圈的第一端和第五绕线组线圈的一端连接，以形成定子的第二相，第三绕线组线圈的第一端和第六绕线组线圈的一端连接，以形成定子的第三相，以使同一相的两个所述绕线组线圈的夹角为180°。
进一步地，所述卡线部设置在与所述第六绕线组线圈对应的第六绝缘线架的远离所述定子齿的一侧；所述第六绝缘线架包括第二引线槽，所述第二引线槽用于将每相的出线端引出至所述卡线部。
进一步地，所述第一绕线组线圈、第三绕线组线圈和第五绕线组线圈对应的绝缘线架均设置有第三引线槽，所述第三引线槽用于将每相的出线端引出；每相的出线端通过引线连接至电路板上。
进一步地，6个所述绕线组线圈采用“Y”接或三角形接法以形成定子的三相。
进一步地，属于同一相的绕线组线圈中支路数为1。
进一步地，属于同一相的绕线组线圈中并联的支路数为2。
进一步地，所述定子的轭部设置有用于定位风机的轴向扩压器的半圆孔；所述半圆孔设置在所述定子齿的中心线上。
进一步地，靠近所述轴向扩压器的所述定子外圈的一面，设置有与所述轴向扩压器的连接孔匹配的连接柱，所述连接柱用于装配所述轴向扩压器。
根据本公开的另一面，还提供了一种风机，包括转子和上述实施方式提供的定子；转子为具有两极的永磁铁。
进一步地，还包括电路板；所述定子每相的出线端通过引线连接至所述电路板。
进一步地，还包括轴向扩压器，与所述定子固定连接，所述轴向扩压器包括外筒、设于所述外筒内的主体部和连接所述外筒和所述主体部的扩压器叶片，所述扩压器叶片将所述外筒和所述主体部之间的环形空间分隔成多个扩压风道，所述主体部具有中心轴孔；风 口罩，其与所述轴向扩压器固定连接，所述风口罩与所述轴向扩压器之间形成叶轮室和环绕所述叶轮室的环形无栅通道，所述环形无栅通道连通所述叶轮室和所述扩压风道，所述风口罩具有进风口；叶轮，其设于所述叶轮室内，所述叶轮用于将空气从所述进风口引入，并在所述叶轮的驱动下经所述环形无栅通道进入所述扩压风道，并从所述扩压风道的另一端流出。
本公开的第三方面，提供了一种清洁设备，包括第二方面提供的风机。
(三)有益效果
本公开的上述技术方案具有如下有益的技术效果：
本公开的实施例提供的定子，属于同相的绕线组线圈对应的所述绝缘线架的第一引线槽的深度相同，不同相的绕线组线圈对应的所述绝缘线架的第一引线槽的深度不同，以使位于所述定子外圈的外部的周向上，不同相的线高低错落，使得定子的各相的线排布整齐，不会造成由于交错导致定子导通的风险，提高了定子的使用寿命和安全性。
附图说明
图1a是根据本公开一实施方式的定子的结构示意图；
图1b是图1a所示的定子的侧视图；
图1c是图1b所示的定子的立体图；
图2a是根据本公开一实施方式的链式连接的定子单元的结构示意图；
图2b是根据本公开一实施方式的链式连接的定子单元的局部示意图；
图2c是根据本公开一实施方式的多个定子单元围成定子的示意图；
图3是根据本公开一实施方式提供的一种三相的定子的电路示意图；
图4是根据本公开一实施方式提供的一种三相的定子的电路示意图；
图5是根据本公开一实施方式提供的风机的结构分解示意图；
图6示出了本申请一实施例的风机的剖面结构示意图；
图7示出了图6中A部放大图；
图8示出了图6中B部放大图；
图9示出了本公开一实施例的风机中叶轮与扩压器装配的端面示意图；
图10示出了本公开另一实施例的风机的剖面结构示意图。
附图标记：
1：定子；11：定子外圈；111：定子单元；1111：绝缘线架；112：半圆孔；113：连接柱；12：定子齿；121：圆弧形结构；13：绕线组线圈:13A：引线；13B：绕线组线圈的接线端；131：第一线圈；132：第二线圈；133：第三线圈；134：第四线圈；135：第五线圈；136：第六线圈；14：定子槽；141：定子槽槽口；15：卡线部；16：跳线；2：转子；3：轴向扩压器；31：外筒；32：主体部；33：扩压器叶片；34：扩压风道； 35：中心轴孔；36：定位柱；37：连接孔；4：风口罩；41：进风口；42：第二环形凸起；5：叶轮；6：轴承；7：电路板；8：环形无栅通道；9：叶轮室；10：电机轴。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚明了，下面结合具体实施方式并参照附图，对本公开进一步详细说明。应该理解，这些描述只是示例性的，而并非要限制本公开的范围。此外，在以下说明中，省略了对公知结构和技术的描述，以避免不必要地混淆本公开的概念。
在附图中示出了根据本公开实施例的层结构示意图。这些图并非是按比例绘制的，其中为了清楚的目的，放大了某些细节，并且可能省略了某些细节。图中所示出的各种区域、层的形状以及它们之间的相对大小、位置关系仅是示例性的，实际中可能由于制造公差或技术限制而有所偏差，并且本领域技术人员根据实际所需可以另外设计具有不同形状、大小、相对位置的区域/层。
显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
在本公开的描述中，需要说明的是，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
此外，下面所描述的本公开不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
图1a是根据本公开一实施方式的定子的结构示意图；图1b是图1a所示的定子的侧视图；图1c是图1b所示的定子的立体图。
如图1a-1c所示。该定子1包括：呈圆环状的定子外圈11、定子齿12和套设在定子齿12外的绕线组线圈13。
其中，所述定子外圈11的内侧的周向上连接有均匀分布的多个定子齿。
所述定子齿12沿着定子外圈11的径向设置；每个所述定子齿的外部均套设有绕线组线圈。
每个绕线组线圈13均对应设置有一个绝缘线架1111，每个所述绝缘线架1111设置在定子外圈11的轴向上。
所述绝缘线架1111设置有第一引线槽，所述第一引线槽用于将所述绕线组线圈的一端引出并围绕所述定子外圈11的外部的周向上与属于同相的绕线组线圈连接。
属于同相的绕线组线圈对应的所述绝缘线架1111的第一引线槽的深度相同，不同相的绕线组线圈对应的所述绝缘线架1111的第一引线槽的深度不同，以使位于所述定子外圈11的外部的周向上，不同相的线高低错落。这样能够使得定子的各相的线排布整齐，不会造成由于交错导致定子导通的风险，提高了定子的使用寿命和安全性。
所述一个绕线组线圈13仅套设在一个所述定子齿12的外部。换言之，本公开中绕线组线圈的跨距为1，其中绕线组线圈采用跨距为1，可提高生产效率，线圈捆绑在一个齿上，可以同时提高线圈和铁芯的刚度，降低噪声。
可以理解的是，在有些现有技术中，跨距大于1的线圈，需要在组装定子时，先按照预定的圈数制备绕线组线圈，然后将绕线组线圈嵌入到定子槽内，并不是直接将线圈套设在定子齿上的，且例如跨距为2的线圈，线圈的两个端部之间跨过2个定子槽。而通常电机的转子为具有两极的磁铁，且位于定子外圈内部，而且转子是柱状的结构，S极和N极均为半圆柱形状。本公开经过研究，这种电机的转子的磁场方向是在定子外圈的周向上，即在定子外圈的轴向的绕线组线圈是有效的，而垂直于定子外圈的轴向的绕线组线圈是无效的，因此跨距大于1的线圈，由于垂直轴向的线圈的长度比较长，跨过很多的定子槽，这样就会造成无效的铜线比较长，导致浪费铜线且电阻大，铜损高，效率也比较低。
本公开在经过大量研究，确定跨距为1的绕线组线圈，虽然绕组系数低(即这种线圈在相同的电流下输出的扭矩较小)，但是由于跨距为1，即1个该绕线组线圈只缠绕在一个定子齿上，可以使得绕线组线圈的无效铜线短，铜线铜损小，效率较高。虽然跨距大于1的线圈尽管绕组系数高，但由于需要跨过多个定子齿和定子槽，就会导致无效的铜线长，电阻大，铜损高，而由于其铜损高，就会导致定子的转动的效率与本公开的跨距1的线圈的效率相差不大，但是本公开线圈的跨距为1，减少了连接线的使用，可以使得用铜量少，而且还能够捆绑在定子齿上，提高定子齿的刚度，这样使得定子的生产效率和使用效率都得到提高。
在一实施例中，定子的定子齿的个数为偶数个。
在本实施例中，定子外圈连接有均匀分布的偶数个定子齿，而本公开的定子槽的个数与定子齿的个数相同，也是偶数个，即本公开的定子槽的个数也是偶数个，能够减少定子在转动时的不平衡径向磁拉力，减少电磁振动，减少电机在使用时的噪音。
图2a是根据本公开一实施方式的链式连接的定子单元的结构示意图。
如图2a所示，该定子外圈是通过链式连接的多个呈环扇形的定子单元111围成的；每个所述定子单元111均连接有所述定子齿，每个所述绝缘线架1111均设置在所述定子单元111上。
在本实施例中，定子单元是由高频的硅钢材料制成的，设置定子外圈是由通过链式连接的多个呈环扇形的定子单元围成的，可以使得在加工定子外圈时，可以设置两个链式定子外圈交叉设置，即第一个定子外圈的两个定子齿之间设置第二个定子外圈的定子齿，可以使得模具冲压一次生产两个定子外圈，而且两个定子外圈交错排列，相比于一次冲压生产一个定子外圈，能够大幅度节省硅钢片。另外，由于本实施例中，定子外圈是链式连接的，可以设置在每个定子齿上直接缠绕线，使得所有定子齿同时绕线，这样提高生产效率，避免将线圈嵌设在定子槽中的安装过程，提高定子的生产效率，并且， 本公开实施例提供的定子外圈还能使得线圈整齐紧致的包在定子齿上，提高定子齿的刚度，起到保护定子齿的作用，而且紧密的线圈还能减少。
另外，值得一提的是，现有技术中，是将绕线组线圈嵌到定子槽中，然后再固定绕线组在定子槽的位置，为了提高定子槽的槽满率，只能设置更多的绕线，而本公开并且相比于将线圈填充在定子槽中，本公开通过直接在定子齿上绕线，得到紧密的绕线组，在得到相同槽满率的同时，能够使用较少的铜线。
图2b是根据本公开一实施方式的链式连接的定子单元的局部示意图；图2c是根据本公开一实施方式的多个定子单元围成定子的示意图。
如图2b和图2c所示，在本实施例中，定子外圈11是在所述定子齿12完成绕线形成所述绕线组线圈13之后，且通过所述绝缘线架1111将所述绕线组线圈的一端引出并围绕所述定子外圈11的外部的周向上与属于同相的绕线组线圈连接之后，将首位的所述定子单元和尾位的定子单元连接，并对所有相邻的定子单元的连接线焊接形成的。
在一些实施例中，对相邻的定子单元的连接线采用焊接。
在本实施例中，由于在定子外圈还是链式结构的时候，先完成定子齿的绕线和同一相线的连接，然后在将链式连接的定子单元焊接，由于呈链式的第一定子单元和第四定子单元的一端的出线是沿着定子单元链的长度方向上直线的连接的，在形成定子外圈后，第一定子单元和第四定子单元在定子外圈外部的周向上会沿着定子外圈的圆弧排布，可以使得同一相的连接线绷紧，不会松动，降低了定子的噪音。
换言之，图2b和图2c中A点为前一个定子单元的绝缘线架1111的一端，B点为靠近A点的下一个定子单元的绝缘线架的一端，C点为焊接点。
由于还未在围成定子外圈的之前时候，连接线会直接从A点至B点，当定子单元围成定子外圈之后，A点至B点的连接线会紧贴定子外周的弧形，这样使得连接线被紧绷，不会松动。
在一些实施例中，本公开的所述定子齿远离所述定子外圈的一端向内凹陷形成圆弧状结构121。且相邻的两个定子齿的圆弧状结构不连接，以使得相邻的两个定子齿的与定子外圈构成的定子槽14，而相邻的两个定子齿的圆弧状结构121在周向上相隔预定的距离，两个圆弧状结构在周向的空间为该定子槽的槽口141。
在一个实施例中，由所述定子齿的所述圆弧状121结构围成的圆用于容纳具有两极的转子2。
其中，定子齿的个数为6，定子槽的个数也为6个。
定子的相数为三相，即每相设置有2个绕线组线圈，这两个绕线组线圈并联的支路数为1或2，即这两个绕线组线圈可以串联或并联。
在一些实施例中，当定子齿的个数为6个时，定子的相数为三相时，属于同一相的两个所述线圈的夹角相差180°。
在一个实施例中，定子还包括跳线16。属于同一相的两个绕线组线圈的两端均通过 绝缘线架1111的第一引线槽引出后，可以通过跳线16分别连接绕线组线圈的两个出线端，使得这两个线圈形成一条相线。
在一些实施例中，绝缘线架1111可以一体成型的设置在定子单元111上，也可以是可拆卸的设置在定子单元111上(在图2所示的定子单元中，未示绝缘线架1111)，例如通过胶粘接在定子单元111上，再或者可以通过紧固件紧固在定子单元上，紧固件例如是螺钉或定子等。
在一个实施例中，绝缘线架1111可以包括底座和设置在底座上的三个凸起部，其中三个凸起部的高度相同，三个凸起部呈一条线，且间隔设置，以形成第一引线槽和第二引线槽。所述第一引线槽用于将所述绕线组线圈的一端引出并围绕所述定子外圈11的外部的周向上与属于同相的绕线组线圈连接。
在另一个实施例中，绝缘线架1111可以是由一长方体形状的部件，在长度方向上刻蚀形成两个引线槽。
在一些实施例中，这两个引线槽的槽深度可以相同也可以不同，这两个引线槽的宽度可以相同也可以不同。
在一个实施例中，三相的出线端通过引线13A连接至风机的电路板上。
在一个实施例中，沿着所述定子外圈11周向方向依次包括第一绕线组线圈、第二绕线组线圈、第三绕线组线圈、第四绕线组线圈、第五绕线组线圈和第六绕线组线圈；其中第一绕线组线圈的第一端和第四绕线组线圈的一端连接，以形成定子的第一相，第二绕线组线圈的第一端和第五绕线组线圈的一端连接，以形成定子的第二相，第三绕线组线圈的第一端和第六绕线组线圈的一端连接，以形成定子的第三相，以使同一相的两个所述绕线组线圈的夹角为180°。
在一个实施例中，定子还包括：卡线部。所述卡线部设置在与所述第六绕线组线圈对应的第六绝缘线架的远离所述定子齿12的一侧；所述第六绝缘线架包括第二引线槽，所述第二引线槽用于将每相的出线端引出至所述卡线部。更进一步地，卡线部可以是U型槽结构。
在一些实施例中，第一相对应的第一引线槽的深度大于第二相对应的引线槽的深度，第二相对应的第一引线槽的深度大于第三相对应的第一引线槽的深度。
在一些实施例中，上述6个所述绕线组线圈采用“Y”接或三角形接法接线。
在图1a-图1c所示的例子中，6个绕线组线圈采用的是Y接法接线，且两个线圈之间通过引线16串联形成一条相线，该相线的一端为一个线圈的一端，相线的另一端为另一个线圈的一端。然后3条相线中每个相线的一端通过卡线部15连接成为接线端，每个相线的另一端均作为相线的出线端，在在图1a-图1c所示的例子中，第一绕线组线圈、第三绕线组线圈和第五绕线组线圈的另一端均作为三相的出线端，进而得到定子的三相，其中每个相线的出线端可以通过引线13A连接至风机的电路板上。
在一些实施例中，所述第一绕线组线圈、第三绕线组线圈和第五绕线组线圈对应的 绝缘线架均设置有第三引线槽，所述第三引线槽用于将每相的出线端引出；每相的出线端通过引线13A连接至风机的电路板上。
在一些实施例中，接线端设置在一个绝缘线架1111远离绕线组线圈的一侧的外部。
在一个实施例中，6个绕线组线圈采用三角形接法接线。
在一些实施例中，6个绕线组线圈的两端通过绝缘线架1111引出后，将同一相的线圈连接后得到3条相线，3条相线的6个端顺次连接得到三相的三个出线端，即第一相线的尾端与第二相的首端连接，连接的端点作为三相的一个出线端，第二相线的尾端与第三相线的首端连接，连接的端点作为三相的另一个出线端，第三相线的尾端与第一相线的首端连接，连接的端点作为三相的最后一个出线端。
在一些实施例中，三条相线的6个端可以通过跳线16连接。
图3是本公开一实施方式提供的三相的定子的电路图。
如图3所示，在本实施方式中，属于同一相的绕线组线圈中并联的支路数为1，即同相的一个绕线组线圈的尾端与同相的另一个绕线组线圈的首端端相连，使得形成一个支路，即同相的绕线组线圈是串联的。
其中在图3所示的实施例中，6个定子线圈分别包括：沿着定子外圈的周向的顺时针方向或者逆时针方向的第一线圈131、第二线圈132、第三线圈133、第四线圈134、第五线圈135、第六线圈136。
其中，设置第一线圈和第四线圈为U相，第二线圈和第五线圈为V相，第三线圈和第六线圈为W相，属于同一相的两个线圈夹角为180°，且属于同一相的两个线圈相隔串联形成一条支路。
图4是本公开一实施方式提供的三相的定子的电路图。
如图4所示，属于同一相的绕线组线圈中并联的支路数为2，即同相的一个绕线组线圈的首端与同相的另一个绕线组线圈的首端相连，同相的一个绕线组线圈的尾端与同相的另一个绕线组线圈的尾端相连使得形成两个支路，即同相的绕线组线圈是并联的。
其中在图4所示的实施例中，6个定子线圈分别包括：沿着定子外圈11的周向的顺时针方向或者逆时针方向的第一线圈、第二线圈、第三线圈、第四线圈、第五线圈、第六线圈。其中，设置第一线圈和第四线圈为U相，第二线圈和第五线圈为V相，第三线圈和第六线圈为W相，属于同一相的两个线圈相隔并联得到两条支路。
在一个实施例中，所述定子的轭部设置有用于定位风机的轴向扩压器的半圆孔112；所述半圆孔112的中心设置在所述定子齿的中心线上。
图5是本公开一实施方式提供的风机的结构分解示意图。
如图5所示，该风机包括：前述实施方式提供的定子1和转子2，该转子2为具有两极的永磁体。
在一个实施例中，风机还包括电路板7。所述定子每相的出线端通过引线13A连接至所述电路板。
在另一个实施例中，在定子的线圈在采用“Y”接或三角形接法接线后的每相的一个出线端连接至所述电路板7，并通过所述电路板7连接到电源。例如每相的一个出线端可以通过引线13A连接至电路板7上。
请参阅图5-10，风机还包括：轴向扩压器3、风口罩4和叶轮5。
其中轴向扩压器3，与定子1固定连接，所述轴向扩压器3包括外筒31、设于所述外筒31内的主体部32和连接所述外筒31和所述主体部32的扩压器叶片33，所述扩压器叶片33将所述外筒31和所述主体部32之间的环形空间分隔成多个扩压风道34，所述主体部32具有中心轴孔35。
风口罩4，其与所述轴向扩压器3固定连接，所述风口罩4与所述轴向扩压器3之间形成叶轮室9和环绕所述叶轮室的9环形无栅通道8，所述环形无栅通道连通8所述叶轮室9和所述扩压风道，所述风口罩4具有进风口；
叶轮5，其设于所述叶轮室9内，所述叶轮5用于将空气从所述进风口41引入，并在所述叶轮5的驱动下经所述环形无栅通道8进入所述扩压风道，并从所述扩压风道的另一端流出。
本公开实施例提供的风机中，取消了径向扩压，采用轴向扩压器3，从叶轮5出来的混乱的气流经环形无栅通道8后，直接进入轴向扩压器3，经轴向扩压器3的扩压器叶片33的导流后，流动趋于平稳，减少流道内漩涡的产生。取消了径向扩压。能够有效降低风阻，减少能量损失，提高风机的工作效率。增大“动静间隙”，使得风机工作时的“动静干涉”效应减弱，降低风机噪声的产生。
径向扩压器一般是在本公开的环形无栅通道8的位置设置轴向扩压叶片形成径向风道，往往距离叶片很近，空气从叶轮5出来后直接撞击到径向扩压器叶片33的前缘，发生强烈的“动静干涉”。大量文献证明，转子2、定子1叶片产生的“动静干涉”是风机噪音的重要组成部分。本公开实施例的风机取消了径向扩压器，而采用轴向扩压器3，增大“动静间隙”，是改善风机噪声非常有力的手段。
由于取消了径向扩压器，可以相应的减小风机的直径。避免了由于风机直径增大，而不得不增大功率带来的轴承6寿命降低，风机噪声增大等问题。
一些实施例中，轴向扩压器3的主体部32的外径与定子1的外径相等，以使从扩压风道34流出空气流经定子1外侧。本公开实施例中，轴向扩压器3的主体部32的外径与定子1的外径相等，可以使流体从轴向扩压器3无障碍通过定子1外圈流出。从定子1外流过，减小了风阻，提高流体效率。
本公开实施例中，轴向扩压器3的主体部32的外径与定子1的外径相等，并非绝对相等，允许存在一定的误差。例如两者的误差为1％、3％、5％、7％、10％等。
一些实施例中，轴向扩压器3和定子1中的一个包括多个定位柱36，轴向扩压器3和定子1中的另一个包括多个与定位柱36相适配的半圆孔112。通过在轴向扩压器3和定子1上分别对应设置定位柱36和半圆孔112，便于轴向扩压器3和定子1的连接固定。
定位柱36可以设置在轴向扩压器3和定子1中的任意一个上，而半圆孔112设置在另一个上。例如，定位柱36可以设置在轴向扩压器3上，而半圆孔112设置在定子1上。
一些实施例中，定位柱36沿轴向扩压器3的轴向延伸。示例性实施例中，轴向扩压器3的扩压器叶片33中的部分扩压器叶片33沿轴向扩压器3的轴向延伸形成定位柱36，定子1包括半圆孔112。定位柱36的数量与扩压器叶片33的数量不相同。一般，定位柱36的数量可以少于扩压器叶片33的数量。因此定位柱36设置在轴向扩压器3上时，可以是部分扩压器叶片33沿轴向延伸形成定位柱36。例如，12个扩压器叶片33中的3个扩压器叶片33沿轴向延伸形成定位柱36。本公开实施例中，扩压器叶片33沿轴向扩压器3的轴向延伸形成定位柱36，可以使定位柱36具有足够的强度，而且不会影响轴向扩压器3的构造，并且同时能够降低材料的消耗。避免为提高定位柱36的强度，而不得不增大定位柱36所在部位的厚度等。
示例性实施例中，可以是扩压器叶片33的端部整体沿轴向扩压器3的轴向延伸形成定位柱36。也可以是扩压器叶片33的端部的部分体沿轴向扩压器3的轴向延伸形成定位柱36。扩压器叶片33的端部的部分体沿轴向扩压器3的轴向延伸形成定位柱36时，例如可以是扩压器叶片33靠近主体部32的一侧沿轴向扩压器3的轴向延伸形成定位柱36。
一些实施例中，定位柱36可以是形成于主体部32上。示例性实施例中，定位柱36可以是位于主体部32的与扩压器叶片33对应的位置。
一些实施例中，一个定位柱可以是部分形成于主体部32上，部分由扩压器叶片33延伸而成。
本公开实施例中，半圆孔112可以是孔槽，也可以是开口槽。一些实施例中，定子1的外周面内凹形成半圆孔112。半圆孔112的外周面内凹形成半圆孔112为开口槽，在保证定位稳固之外，还能够在保证强度的同时，节省材料。半圆孔112的壁面为圆柱面，定位柱36具有与半圆孔112的壁面相适配的圆柱面。半圆孔112的壁面以及定位柱36相应的适配面为圆柱面，有效保证了两者结合的稳定。
一些实施例中，定位柱36为半圆柱体。定位柱36一侧具有与半圆孔112的壁面相适配的圆柱面，另一侧与定子1的周面相匹配。
本公开实施例中，半圆孔112可以设于定子1的周面的任意位置。一些实施例中，半圆孔112位于与定子1的齿中线对应的外周面上。半圆孔112设于与定子1的齿相对的外周面上。该部位有足够的空间设置半圆孔112，并保证强度，而不必额外增加半圆孔112所在部位的厚度等尺寸，而增加材料消耗。
本公开实施例中，半圆孔112和定位柱36的个数不作具体限定，例如，可以是2个，3个，4个等。一些实施例中，半圆孔112和定位柱36分别为三个，半圆孔112和定位柱36分别在各自所在的圆周上均匀分布。半圆孔112和定位柱36分别为三个，即可保证轴向扩压器3和定子1的定位连接。多个半圆孔112在一个圆周上分布。多个定位柱36也在一个圆周上均匀分布。两者所在圆周的直径相等。半圆孔112和定位柱36分别在各 自所在的圆周上均匀分布，在轴向扩压器3和定子1连接时，不必限定两者在特定的方位。任一个定位柱36，可以与任一个半圆孔112相适配。
本公开实施例中，轴向扩压器3与定子1之间的固定连接方式不限。例如，轴向扩压器3与定子1可以通过胶粘结，或者通过过盈配合连接，或者通过螺纹件连接等。
一些实施例中，轴向扩压器3中的一个或多个连接柱113，定子1中的一个或多个与连接柱113相适配的连接孔37。或者轴向扩压器3中的一个或多个连接孔，定子1中设置一或多个与连接孔适配的连接柱。本公开以定子中设置有连接柱113为例。其中，轴向扩压器3和定子1通过连接柱113与连接孔37配合连接在一起。例如，连接柱113与连接孔37的孔壁之间通过胶固定连接。此种方式可以在特定的位置施胶，避免溢胶等缺陷。或者连接柱113与连接孔37通过过盈配合固定连接。
示例性实施例中，轴向扩压器3包括多个连接孔37，定子1包括多个与连接孔37相适配的连接柱113。例如，多个连接孔37可以设于主体部32上。
本公开实施例的风机中，可以同时包括对应连接柱113和连接孔37以及对应的定位柱36和半圆孔112。
一些实施例中，对应连接柱113和连接孔37所在圆与对应的定位柱36和半圆孔112所在圆的轴心线共线。示例性实施例中，对应连接柱113和连接孔37所在圆的半径可以小于对应的定位柱36和半圆孔112所在圆的半径。
一些实施例中，连接柱113的长度小于定位柱36的长度。组装时，可以通过定位柱36与半圆孔112的配合实现轴向扩压器3和定子1的定位，从而使连接柱113与连接孔37相对应，便于组装。
一些实施例中，外筒31靠近风口罩4一侧的端面具有第一环形凸起38，以使外筒31的端面形成第一台阶面，外筒31的外壁面一侧轴向延伸形成环形凸起；风口罩4具有第二环形凸起42，以使风口罩4与外筒31连接的端面形成第二台阶面，第二台阶面与第一台阶面相适配。在外筒31与风口罩4相连接的部位设置台阶面，可以使风口罩4与外筒31相接的部位的内壁面过渡更平滑，降低对流体的干扰。
一些实施例中，叶轮5的叶片的个数为奇数。例如，叶轮5的叶片的个数为3、5、7、9、11等。叶轮5的叶片个数为奇数，可以减少不对称的注塑残余应力，减少共振。
一些实施例中，叶轮5的叶片的个数与扩压器叶片33的个数互不为倍数。扩压器叶片33的个数选用不能整除叶轮5的叶片的个数的数量，这样可以降低空气噪声。例如，叶轮5的叶片的个数为7，扩压器叶片33的个数为12。
一些实施例中，扩压器叶片33的个数为3的倍数。扩压器叶片33的个数为3的倍数便于设置定位柱36。定位柱36为三个即可保证轴向扩压器3与定子1的定位。定位柱36在圆周上均匀分布，利用轴向扩压器3与定子1的装配。定位柱36由扩压器叶片33延伸形成时，扩压器叶片33的个数为3的倍数可以保证定位柱36的均匀分布。扩压器叶片33的个数例如可以是9、12、15等。当然，本公开实施例中，并不排除扩压器叶片33的个 数为3的倍数之外的个数。
一些实施例中，叶轮5的叶片的个数少于扩压器叶片33的个数。在叶轮5的叶片满足抽风效率的同时，扩压器叶片33的个数还符合整流效率。
一些实施例中，扩压器叶片33可以是倾斜设置。即扩压器叶片33与轴向扩压器3的轴线不相平行。扩压风道34的轴线与轴向扩压器3的轴线也不相平行。示例性实施例中，扩压风道34的轴线与轴向扩压器3的轴线之间形成的夹角可以是10°-45°。
本公开实施例中，轴向扩压器3通过轴承6装配于电机轴10上。叶轮5固定于电机上。
本公开实施例的风机还包括转子2和电路板7。转子2固定于电机轴10上。电路板7与定子1连接。
本公开实施例提供了一种清洁设备，其包括上述任一实施例的风机。
本公开实施例提供的清洁设备中的风机取消了径向扩压，采用轴向扩压器3，从叶轮5出来的混乱的气流经环形无栅通道8后，直接进入轴向扩压器3，经轴向扩压器3的扩压器叶片33的导流后，流动趋于平稳，减少流道内漩涡的产生。取消了径向扩压。能够有效降低风阻，减少能量损失，提高风机的工作效率。增大“动静间隙”，使得清洁设备工作时的“动静干涉”效应减弱，降低风机噪声的产生。
径向扩压器一般设置于环形无栅通道8的位置，往往距离叶片很近，空气从叶轮5出来后直接撞击到径向扩压器叶片33的前缘，发生强烈的“动静干涉”。大量文献证明，转子2、定子1叶片产生的“动静干涉”是风机噪音的重要组成部分。本公开实施例的清洁设备的风机取消了径向扩压器，而采用轴向扩压器3，增大“动静间隙”，是改善风机噪声非常有力的手段。
由于取消了径向扩压器，可以相应的减小风机的直径。避免了由于风机直径增大，而不得不增大功率带来的轴承6寿命降低，风机噪声增大等问题。
在本公开的另一个方面，提供一种清洁设备，设置有上述技术方案任一项的风机。本实施例的清洁设备包括扫地机器人、手持吸尘器等。
应当理解的是，本公开的上述具体实施方式仅仅用于示例性说明或解释本公开的原理，而不构成对本公开的限制。因此，在不偏离本公开的精神和范围的情况下所做的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。此外，本公开所附权利要求旨在涵盖落入所附权利要求范围和边界、或者这种范围和边界的等同形式内的全部变化和修改例。

Claims (15)

  1. 一种定子，其特征在于，包括：
    呈圆环状的定子外圈(11)；
    所述定子外圈(11)的内侧的周向上连接有均匀分布的多个定子齿(12)；
    所述定子齿(12)沿着定子外圈(11)的径向设置；每个所述定子齿(12)的外部均缠绕有绕线组线圈(13)；
    每个绕线组线圈(13)均对应设置有绝缘线架(1111)，每个所述绝缘线架(1111)设置在定子外圈(11)的轴向上；
    所述绝缘线架(1111)设置有第一引线槽，所述第一引线槽用于将所述绕线组线圈的一端引出并围绕所述定子外圈(11)的外部的周向上与属于同相的绕线组线圈连接；
    属于同相的绕线组线圈对应的所述绝缘线架(1111)的第一引线槽的深度相同，不同相的绕线组线圈对应的所述绝缘线架(1111)的第一引线槽的深度彼此不同。
  2. 根据权利要求1所述的定子，其特征在于，
    所述定子外圈(11)是通过链式连接的多个呈环扇形的定子单元(111)围成的；每个所述定子单元(111)均连接有所述定子齿(12)；
    每个所述绝缘线架(1111)均设置在所述定子单元(111)上。
  3. 根据权利要求2所述的定子，其特征在于，
    所述定子外圈(11)是在所述定子齿(12)完成绕线形成所述绕线组线圈(13)之后，且通过所述绝缘线架(1111)将所述绕线组线圈的一端引出并围绕所述定子外圈(11)的外部的周向延伸且与属于同相的绕线组线圈连接之后，将首位的所述定子单元和尾位的定子单元连接，并对所有相邻的定子单元的连接采用焊接形成。
  4. 根据权利要求1-3任一项所述的定子，其特征在于，
    所述定子齿(12)远离所述定子外圈(11)的一端向内凹陷形成圆弧状结构；
    由所述定子齿(12)的所述圆弧状结构围成的圆用于容纳具有两极的转子；
    所述定子齿(12)的个数为6；
    所述定子的相数为三相。
  5. 根据权利要求4所述的定子，其特征在于，
    沿着所述定子外圈(11)周向方向依次包括第一绕线组线圈、第二绕线组线圈、第三绕线组线圈、第四绕线组线圈、第五绕线组线圈和第六绕线组线圈；
    其中第一绕线组线圈的第一端和第四绕线组线圈的一端连接，以形成定子的第一相，第二绕线组线圈的第一端和第五绕线组线圈的一端连接，以形成定子的第二相，第三绕线组线圈的第一端和第六绕线组线圈的一端连接，以形成定子的第三相，以使同一相的两个所述绕线组线圈的夹角为180°。
  6. 根据权利要求5所述的定子，其特征在于，还包括：卡线部(15)，
    所述卡线部(15)设置在与所述第六绕线组线圈对应的第六绝缘线架的远离所述定子 齿(12)的一侧；
    所述第六绝缘线架包括第二引线槽，所述第二引线槽用于将每相的出线端引出至所述卡线部，以被卡线部卡持。
  7. 根据权利要求5或6所述的定子，其特征在于，所述第一绕线组线圈、第三绕线组线圈和第五绕线组线圈对应的绝缘线架均设置有第三引线槽，所述第三引线槽用于将每相的出线端引出；每相的出线端通过引线(13A)连接至电路板上。
  8. 根据权利要求4-7任一项所述的定子，其特征在于，
    6个所述绕线组线圈(13)采用“Y”接法或三角形接法连接以形成定子的三相。
  9. 根据权利要求1-8任一项所述的定子，其特征在于，
    属于同一相的绕线组线圈(13)支路数为1；或者
    属于同一相的绕线组线圈(13)中并联的支路数为2。
  10. 根据权利要求1-9任一项所述的定子，其特征在于，
    所述定子的轭部设置有用于定位风机的轴向扩压器(3)的半圆孔(112)；
    所述半圆孔(112)设置在所述定子齿(12)的中心线上。
  11. 根据权利要求10所述的定子，其特征在于，靠近所述轴向扩压器的所述定子外圈(11)的一面，设置有与所述轴向扩压器(3)的连接孔(37)匹配的连接柱(113)，所述连接柱(113)用于装配所述轴向扩压器(3)。
  12. 一种风机，其特征在于，包括转子和如权利要求1-11任一项所述的定子(1)；
    所述转子(2)为具有两极的永磁铁。
  13. 根据权利要求12所述的风机，其特征在于，还包括电路板(7)；
    所述定子每相的出线端通过引线(13A)连接至所述电路板。
  14. 根据权利要求11-13任一项所述的风机，其特征在于，还包括：
    轴向扩压器(3)，与所述定子(1)固定连接，所述轴向扩压器(3)包括外筒(31)、设于所述外筒(31)内的主体部(32)和连接所述外筒(31)和所述主体部(32)的扩压器叶片(33)，所述扩压器叶片(33)将所述外筒(31)和所述主体部(32)之间的环形空间分隔成多个扩压风道(34)，所述主体部(32)具有中心轴孔(35)；
    风口罩(4)，其与所述轴向扩压器(3)固定连接，所述风口罩(4)与所述轴向扩压器(3)之间形成叶轮室(9)和环绕所述叶轮室的(9)环形无栅通道(8)，所述环形无栅通道连通(8)所述叶轮室(9)和所述扩压风道，所述风口罩(4)具有进风口；
    叶轮(5)，其设于所述叶轮室(9)内，所述叶轮(5)用于将空气从所述进风口(41)引入，并在所述叶轮(5)的驱动下经所述环形无栅通道(8)进入所述扩压风道，并从所述扩压风道的另一端流出。
  15. 一种清洁设备，其特征在于，包括如权利要求11-14任一项所述的风机。
PCT/CN2021/116434 2020-09-14 2021-09-03 一种定子、风机及清洁设备 Ceased WO2022052873A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US18/022,198 US12199486B2 (en) 2020-09-14 2021-09-03 Stator, fan, and cleaning device
KR1020227036369A KR102800087B1 (ko) 2020-09-14 2021-09-03 고정자, 팬 및 청소 장치
EP21865927.4A EP4213343A4 (en) 2020-09-14 2021-09-03 STATOR, FAN AND CLEANING DEVICE
JP2022560953A JP7743431B2 (ja) 2020-09-14 2021-09-03 ステータ、ファンおよびクリーニング装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010963271.2 2020-09-14
CN202010963271.2A CN114189065A (zh) 2020-09-14 2020-09-14 一种定子、风机及清洁设备

Publications (1)

Publication Number Publication Date
WO2022052873A1 true WO2022052873A1 (zh) 2022-03-17

Family

ID=80539317

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/116434 Ceased WO2022052873A1 (zh) 2020-09-14 2021-09-03 一种定子、风机及清洁设备

Country Status (6)

Country Link
US (1) US12199486B2 (zh)
EP (1) EP4213343A4 (zh)
JP (1) JP7743431B2 (zh)
KR (1) KR102800087B1 (zh)
CN (1) CN114189065A (zh)
WO (1) WO2022052873A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114865820A (zh) * 2022-03-23 2022-08-05 江门市邦特电子电器有限公司 一种三相直流无刷电机及电机线方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220101409A (ko) * 2021-01-11 2022-07-19 엘지전자 주식회사 모터 조립체용 커넥션링 및 그의 제조방법, 모터 조립체
JP7604927B2 (ja) * 2021-02-05 2024-12-24 株式会社デンソー ステータ、回転電機、ステータの製造方法及び回転電機の製造方法
CN115822877A (zh) * 2022-11-24 2023-03-21 昆山岱屹精密机械有限公司 风力发电装置及新能源汽车

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102204062A (zh) * 2008-11-03 2011-09-28 菲艾姆股份有限公司 电机
CN107947398A (zh) * 2016-10-13 2018-04-20 福特全球技术公司 电机的定子槽构造
CN207753516U (zh) * 2017-12-21 2018-08-21 上海海立电器有限公司 绝缘支架以及压缩机定子
DE102017209931A1 (de) * 2017-06-13 2018-12-13 Robert Bosch Gmbh Elektrische Maschine, Stator für eine elektrische Maschine, sowie Verfahren zur Herstellung eines solchen
CN209984154U (zh) * 2019-01-31 2020-01-24 稻津电机(珠海)有限公司 一种高速吸尘器马达
CN212543466U (zh) * 2020-09-14 2021-02-12 北京石头世纪科技股份有限公司 一种定子、风机及清洁设备

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000232745A (ja) 1999-02-10 2000-08-22 Toshiba Kyaria Kk 圧縮機用電動機
JP5468747B2 (ja) * 2007-06-05 2014-04-09 レスメド・モーター・テクノロジーズ・インコーポレーテッド 軸受管を有するブロワ
JP4957614B2 (ja) * 2008-03-28 2012-06-20 ダイキン工業株式会社 ステータ、モータおよび圧縮機
JP2013211956A (ja) * 2012-03-30 2013-10-10 Mitsubishi Electric Corp 回転電機
JP5850431B2 (ja) 2012-12-25 2016-02-03 三菱電機株式会社 電動機用固定子の製造方法
JP2017163726A (ja) * 2016-03-10 2017-09-14 日立オートモティブシステムズ株式会社 電動流体ポンプ
JP6635511B2 (ja) * 2016-04-08 2020-01-29 マブチモーター株式会社 ブラシレスモータ
JP2018125950A (ja) * 2017-01-31 2018-08-09 日本電産株式会社 モータ及びそれを備えた送風装置
JP6765542B2 (ja) * 2017-08-29 2020-10-07 三菱電機株式会社 モータ及び空気調和装置
JP2018166399A (ja) * 2018-07-10 2018-10-25 日立アプライアンス株式会社 ロータ組立体
CN109185196B (zh) * 2018-09-30 2020-04-10 广东威灵电机制造有限公司 电风机
DE102019200155A1 (de) * 2019-01-09 2020-07-09 Robert Bosch Gmbh Elektromotor
CN112136264A (zh) * 2019-03-13 2020-12-25 株式会社Top 旋转机以及绝缘体
KR102888410B1 (ko) * 2020-07-27 2025-11-21 삼성전자주식회사 모터 어셈블리 및 이를 포함하는 청소기

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102204062A (zh) * 2008-11-03 2011-09-28 菲艾姆股份有限公司 电机
CN107947398A (zh) * 2016-10-13 2018-04-20 福特全球技术公司 电机的定子槽构造
DE102017209931A1 (de) * 2017-06-13 2018-12-13 Robert Bosch Gmbh Elektrische Maschine, Stator für eine elektrische Maschine, sowie Verfahren zur Herstellung eines solchen
CN207753516U (zh) * 2017-12-21 2018-08-21 上海海立电器有限公司 绝缘支架以及压缩机定子
CN209984154U (zh) * 2019-01-31 2020-01-24 稻津电机(珠海)有限公司 一种高速吸尘器马达
CN212543466U (zh) * 2020-09-14 2021-02-12 北京石头世纪科技股份有限公司 一种定子、风机及清洁设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4213343A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114865820A (zh) * 2022-03-23 2022-08-05 江门市邦特电子电器有限公司 一种三相直流无刷电机及电机线方法

Also Published As

Publication number Publication date
JP2023520799A (ja) 2023-05-19
US20230307978A1 (en) 2023-09-28
KR20220158007A (ko) 2022-11-29
KR102800087B1 (ko) 2025-04-28
JP7743431B2 (ja) 2025-09-24
CN114189065A (zh) 2022-03-15
EP4213343A4 (en) 2024-10-30
US12199486B2 (en) 2025-01-14
EP4213343A1 (en) 2023-07-19

Similar Documents

Publication Publication Date Title
WO2022052873A1 (zh) 一种定子、风机及清洁设备
US8106557B2 (en) Permanent magnet synchronous motor and hermetic compressor
CN212543466U (zh) 一种定子、风机及清洁设备
JP2008131813A (ja) 永久磁石式回転電機，風力発電システム，永久磁石の着磁方法
US11268532B2 (en) Electric blower, electric vacuum cleaner, and hand dryer
CN212536158U (zh) 一种风机及清洁设备
CN112688522A (zh) 一种高功率密度轴向磁场永磁电机结构
CN210724364U (zh) 一种外转子开关磁阻轮毂电机的冷却装置
CN101567597A (zh) 一种单相电容运转电机
CN108429365A (zh) 定子组件、电机及压缩机
CN114183382B (zh) 一种风机及清洁设备
US12253090B2 (en) Fan and cleaning device
CN111987855A (zh) 定子模块与风扇电机
CN208142938U (zh) 定子组件、电机及压缩机
CN217935209U (zh) 一种高速风筒无刷电机
CN217643115U (zh) 一种电机
CN113162262B (zh) 定子铁芯单元、定子铁芯、电机及压缩机
JP2020129880A (ja) 電動機及びそれを用いた電動送風機及びそれを用いた電気掃除機
WO2022193592A1 (zh) 电机转子以及电机
CN217904126U (zh) 电机转子结构、电机和车辆
CN219477702U (zh) 转子铁芯及使用该转子铁芯的转子组件和永磁电机
CN212367091U (zh) 一种永磁直流变频电机
CN201388132Y (zh) 一种定、转子电机
CN209072164U (zh) 一种具有配合极数的外转子电机
CN100536279C (zh) 一种电机的双柱式磁极

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21865927

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022560953

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20227036369

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2021865927

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2021865927

Country of ref document: EP

Effective date: 20230414