CN110545005B - Rotor housing structure, outer rotor motor and washing machine having the same - Google Patents
Rotor housing structure, outer rotor motor and washing machine having the same Download PDFInfo
- Publication number
- CN110545005B CN110545005B CN201910924520.4A CN201910924520A CN110545005B CN 110545005 B CN110545005 B CN 110545005B CN 201910924520 A CN201910924520 A CN 201910924520A CN 110545005 B CN110545005 B CN 110545005B
- Authority
- CN
- China
- Prior art keywords
- sheet
- rotor
- air guide
- heat dissipation
- housing structure
- 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.)
- Active
Links
- 238000005406 washing Methods 0.000 title claims description 9
- 230000017525 heat dissipation Effects 0.000 claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 230000010349 pulsation Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
本申请提供一种转子壳体结构，包括：壳体端壁，壳体端壁上设置有散热结构，散热结构由多个围绕旋转轴周向设置的片状导风板形成，相邻两个导风板之间形成通风口。根据本申请的转子壳体结构，不仅能够有效的减小转子旋转过程中产生的压力脉动，降低空气噪声，并且能够加快电机散热。
The present application provides a rotor housing structure, including: a housing end wall, a heat dissipation structure is arranged on the housing end wall, the heat dissipation structure is formed by a plurality of sheet-shaped air guide plates arranged circumferentially around a rotating shaft, and a vent is formed between two adjacent air guide plates. According to the rotor housing structure of the present application, not only can the pressure pulsation generated during the rotation of the rotor be effectively reduced, the air noise can be reduced, and the heat dissipation of the motor can be accelerated.
Description
Technical Field
The application belongs to the technical field of motor heat dissipation, and particularly relates to a rotor shell structure, an outer rotor motor and a washing machine with the same.
Background
At present, in the process of rotating at a high speed, the outer rotor motor is easy to stir air around the rotor due to the large volume of the outer rotor motor, and large air noise is generated.
However, the surface of a rotor shell of an external rotor motor of a washing machine in the prior art adopts a grid structure or is provided with a rectangular or round hole-shaped air inlet, and the surface of the rotor shell is additionally provided with reinforcing ribs, so that the strength of the structure is enhanced, the surface structure of the rotor shell ensures that the wind pressure flowing through the surface of the rotor shell is large, the attaching area of a turbulent flow attaching layer on the surface of the rotor shell is large, the pressure pulsation is large, the pneumatic noise is large, and the air inlet forms can cause poor heat dissipation.
Therefore, how to provide a rotor case structure, an outer rotor motor, and a washing machine having the same, which can effectively reduce pressure pulsation generated during rotation of the rotor, reduce air noise, and accelerate heat dissipation of the motor, is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
Therefore, the technical problem to be solved by the application is to provide a rotor shell structure, an outer rotor motor and a washing machine with the same, which not only can effectively reduce pressure pulsation generated in the rotation process of a rotor, reduce air noise, but also can accelerate heat dissipation of the motor.
In order to solve the above problems, the present application provides a rotor housing structure including:
The shell end wall is provided with a heat radiation structure, the heat radiation structure is formed by a plurality of flaky air deflectors circumferentially arranged around the rotating shaft, and a ventilation opening is formed between two adjacent air deflectors.
The air conditioner comprises a rotary shaft, a heat dissipation structure, a sheet-shaped air deflector, a fixing part, a heat dissipation structure and a rotating shaft, wherein the heat dissipation structure is arranged on the rotary shaft, the fixing part is connected with the rotary shaft, the heat dissipation structure is connected with the rotary shaft, and the heat dissipation structure is connected with the rotary shaft.
Preferably, the width of the air deflector gradually increases from a position close to the rotation axis to a position distant from the rotation axis.
Preferably, the air deflector is provided with a flow dividing tooth on at least one side in the width direction thereof for dividing the air flow flowing over the surface of the rotor case.
Preferably, the air deflector is disposed obliquely with respect to the horizontal direction.
Preferably, a plurality of air deflectors circumferentially arranged around the rotation shaft are equidistantly arranged, and the number of the air deflectors is an odd number.
Preferably, the heat dissipation device further comprises a hub, wherein the hub is arranged on the heat dissipation structure and is integrally connected with the sheet-shaped air deflector.
Preferably, radial reinforcing ribs are arranged on the heat dissipation structure.
Preferably, the radial reinforcing ribs penetrate the air deflector in the thickness direction of the air deflector.
According to still another aspect of the present application, there is provided an external rotor motor including a rotor housing structure, characterized in that the rotor housing structure is the above-described rotor housing structure.
According to still another aspect of the present application, there is provided a washing machine including a rotor housing structure characterized in that the rotor housing structure is the above-mentioned outer rotor motor.
The end wall of the rotor shell structure is provided with a heat dissipation structure, the heat dissipation structure is formed by a plurality of sheet air deflectors circumferentially arranged around a rotating shaft, and a ventilation opening is formed between two adjacent sheet air deflectors. The flaky air deflector can cut air flow, reduce air noise, lighten the overall weight of a rotor, reduce energy loss in the rotating process of the rotor, improve motor efficiency, effectively reduce pressure pulsation generated in the rotating process of the rotor, reduce air noise and quicken motor heat dissipation.
Drawings
FIG. 1 is a schematic view of a rotor housing structure according to an embodiment of the present application;
FIG. 2 is a schematic structural view of an air deflector according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of an air deflection plate in accordance with embodiments of the present application;
FIG. 4 is an enlarged view of area A of FIG. 3;
Fig. 5 is a cross-sectional view of a radial stiffener according to an embodiment of the present application.
The reference numerals are expressed as:
1. a housing end wall; 2, a rotating shaft, 3, a heat dissipation structure, 31, a sheet air deflector, 4, a ventilation opening, 5, a fixed part, 6, a split tooth, 7, a hub, 8 and a radial reinforcing rib.
Detailed Description
Referring to FIG. 1 in combination, according to an embodiment of the present application, a rotor housing structure includes a housing end wall 1, a heat dissipation structure 3 is provided on the housing end wall 1, the heat dissipation structure 3 is formed by a plurality of sheet air deflectors 31 circumferentially arranged around a rotation shaft 2, and a ventilation opening 4 is formed between two adjacent sheet air deflectors 31, in order to facilitate air cutting during rotation of a motor, reduce air noise, and the structure of the sheet air deflectors 31 of the present application reduces overall weight of the rotor, reduces energy loss during rotation of the rotor, and improves efficiency of the motor
Further, the air conditioner further comprises a fixing part 5, the heat dissipation structure 3 and the rotating shaft 2 are sequentially connected from the edge of the end wall 1 of the shell to the center, a first end of the sheet air deflector 31 in the length direction is connected with the fixing part 5, and a second end of the sheet air deflector is connected with the rotating shaft 2.
Further, the width of the sheet-like air deflector 31 gradually increases from a position close to the rotation shaft 2 to a direction away from the rotation shaft 2.
Further, the thickness of the sheet-like air deflector 31 is 2.5mm to 5mm.
Further, the thickness of the sheet-like air deflector 31 is uniformly set.
Referring to fig. 2, the present application also discloses embodiments in which at least one side of the sheet-shaped air deflector 31 in the width direction is provided with a diverting tooth 6, and the air flow is diverted when flowing over the surface of the rotor housing of the motor, so that the problem of smaller wind pressure flowing over the surface of the rotor housing is solved, and the adhesion area of the turbulent flow boundary layer on the surface of the rotor housing is reduced, thereby reducing pressure pulsation and further reducing aerodynamic noise.
Further, the number of the diverting teeth 6 is an odd number.
Further, the tooth pitch is set to T, t= (radius of outer edge of the sheet-shaped air deflector 31-radius of root of the sheet-shaped air deflector 31) (1% -2%), the tooth height is set to h, h= (radius of outer edge of the sheet-shaped air deflector 31-radius of root of the sheet-shaped air deflector 31) (0.6% -0.8%), and the thickness of the teeth is equal to that of the sheet-shaped air deflector 31.
Further, the diverting teeth 6 are V-shaped serrated.
Further, the diverter tooth 6 is tidal or wave-shaped.
The application also discloses embodiments, which are combined with the illustration of fig. 3, wherein the flaky air guide plates 31 are obliquely arranged relative to the horizontal direction, so that the gap of the air inlets of the flaky air guide plates 31 is increased, the air inlet quantity inside the rotor is increased, the air exchange inside and outside the rotor is facilitated, and the problems of lower air inlet quantity of the rotor, untimely heat dissipation and the like are solved.
Referring to fig. 4, the application also discloses some embodiments, wherein the inclination angle a of the sheet air deflector 31 and the horizontal plane is 6-8 degrees, and simulation proves that the angle is favorable for reducing motor noise, and air can enter the motor through a gap between the inclination angles in the motor rotation process, so that the motor heat dissipation effect is achieved.
Further, the sheet air deflector 31 on the rotor shell is designed into a fan blade shape, in the high-speed rotation process of the motor, the diverting teeth 6 have the function of rapidly diverting a part of wind pressure, reducing noise caused by air turbulence, reducing noise generated by wind pressure and air friction, and meanwhile, the diverting teeth 6 are beneficial to shearing air, so that the air flows through the surface of the fan blade along the direction of the diverting teeth 6, and simultaneously, the air can be opposite to the vortex formed at the edge of the fan blade, so that noise generated by the vortex at the edge is counteracted.
Further, a plurality of sheet-shaped air deflectors 31 circumferentially arranged around the rotation shaft 2 are equidistantly arranged, and the number of the sheet-shaped air deflectors 31 is odd, so that resonance of the sheet-shaped air deflectors 31 during rotation of the motor is prevented.
Further, the heat dissipation device further comprises a hub 7, wherein the hub 7 is arranged on the heat dissipation structure 3 and integrally connected with the sheet-shaped air deflector 31, so that the effect of circumferential reinforcing ribs is achieved, the vibration of the sheet-shaped air deflector 31 can be reduced, and the vibration noise is reduced.
Referring to fig. 5 in combination, the present application also discloses some embodiments, wherein radial reinforcing ribs 8 are arranged on the heat dissipation structure 3.
Further, radial reinforcing ribs 8 are provided on the sheet air deflector 31.
Further, radial ribs 8 are equidistantly arranged.
Further, the radial reinforcing ribs 8 penetrate the sheet-like air deflector 31 in the thickness direction of the sheet-like air deflector 31.
Further, the thickness of the radial reinforcing ribs 8 adopts a gradient design, the radial reinforcing ribs 8 are thicker at one end close to the rotating shaft 2 and penetrate through the sheet-shaped air deflector 31, and the radial reinforcing ribs 8 are thinner at one end far away from the rotating shaft 2, so that the structural rigidity of the rotor housing is improved.
Further, the sheet air deflector 31 is provided with noise reduction holes, the direction of the noise reduction holes is according to the air streamline direction when the motor rotates, and small eddies are formed after the air flows through the holes and interact with the original sound field, so that noise is reduced.
Further, noise reduction grooves are formed in the upper surface of the sheet air deflector 31, and the noise reduction grooves are pits similar to the surface structure of a golf ball, so that the pits can reduce air resistance and noise when the motor rotates, and the aerodynamic principle is met.
Further, the thickness adopts a gradient design, the radial reinforcing ribs 8 are thicker at one end close to the rotating shaft 2 and penetrate through the sheet-shaped air deflector 31, and the radial reinforcing ribs 8 are thinner at one end far away from the rotating shaft 2. Radial ribs 8 are equally distributed around the axis of rotation 2.
According to an embodiment of the application, an external rotor motor comprises a rotor housing structure, and is characterized in that the rotor housing structure is the rotor housing structure.
According to an embodiment of the application, a washing machine comprises a rotor housing structure, and is characterized in that the rotor housing structure is the outer rotor motor.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application. The foregoing is merely a preferred embodiment of the present application, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present application, and these modifications and variations should also be regarded as the scope of the application.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910924520.4A CN110545005B (en) | 2019-09-27 | 2019-09-27 | Rotor housing structure, outer rotor motor and washing machine having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910924520.4A CN110545005B (en) | 2019-09-27 | 2019-09-27 | Rotor housing structure, outer rotor motor and washing machine having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110545005A CN110545005A (en) | 2019-12-06 |
| CN110545005B true CN110545005B (en) | 2025-03-14 |
Family
ID=68714825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910924520.4A Active CN110545005B (en) | 2019-09-27 | 2019-09-27 | Rotor housing structure, outer rotor motor and washing machine having the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110545005B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752935A (en) * | 2008-12-03 | 2010-06-23 | 中山大洋电机股份有限公司 | Shell structure of external rotor motor and rotor part manufactured by utilizing shell |
| CN102022380A (en) * | 2011-01-01 | 2011-04-20 | 杭州顿力电器有限公司 | Bionic axial-flow fan |
| CN103078445A (en) * | 2013-02-07 | 2013-05-01 | 浙江德盈电气制造有限公司 | Efficient radiating motor |
| CN210380476U (en) * | 2019-09-27 | 2020-04-21 | 珠海格力电器股份有限公司 | Rotor shell structure, outer rotor motor and washing machine with same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207819614U (en) * | 2018-01-10 | 2018-09-04 | 温州君源汽车零部件有限公司 | A kind of fan motor for automobile |
-
2019
- 2019-09-27 CN CN201910924520.4A patent/CN110545005B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752935A (en) * | 2008-12-03 | 2010-06-23 | 中山大洋电机股份有限公司 | Shell structure of external rotor motor and rotor part manufactured by utilizing shell |
| CN102022380A (en) * | 2011-01-01 | 2011-04-20 | 杭州顿力电器有限公司 | Bionic axial-flow fan |
| CN103078445A (en) * | 2013-02-07 | 2013-05-01 | 浙江德盈电气制造有限公司 | Efficient radiating motor |
| CN210380476U (en) * | 2019-09-27 | 2020-04-21 | 珠海格力电器股份有限公司 | Rotor shell structure, outer rotor motor and washing machine with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110545005A (en) | 2019-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2213882B1 (en) | Centrifugal fan | |
| JP5880288B2 (en) | Blower | |
| JP4798640B2 (en) | Propeller fan, molding die and fluid feeder | |
| JP2013249763A (en) | Axial flow blower | |
| JP2016070089A (en) | fan | |
| JP2012052443A (en) | Propeller fan | |
| JP7280148B2 (en) | Impeller for wind power generation and wind power generation system | |
| JP6604981B2 (en) | Axial blower impeller and axial blower | |
| CN213953930U (en) | A noise reduction axial fan | |
| CN103486081B (en) | Axial flow fan blade, fan and air conditioner outdoor unit | |
| JP5978886B2 (en) | Blower | |
| CN202628612U (en) | Axial flow fan blade, fan and air conditioner outdoor unit | |
| JP6930644B1 (en) | Propeller fan | |
| CN110545005B (en) | Rotor housing structure, outer rotor motor and washing machine having the same | |
| CN102758793B (en) | Fan blade and axial flow fan with fan blade of air conditioner | |
| JP2012012942A (en) | Propeller fan | |
| CN210380476U (en) | Rotor shell structure, outer rotor motor and washing machine with same | |
| JP7529708B2 (en) | Propeller fans and refrigeration equipment | |
| JP2010101227A (en) | Propeller fan, fluid feeding device, and molding die | |
| JP5862541B2 (en) | Low noise blower | |
| JP2003180051A (en) | Rotating blades of fully enclosed fan-type rotary electric machine | |
| CN210380477U (en) | Rotor housing structure, outer rotor motor, and washing machine having the same | |
| CN110545003B (en) | Rotor shell structure, outer rotor motor and washing machine with same | |
| CN223885074U (en) | External rotor motor equipped with low-noise wing-shaped radiating blades | |
| JP2007002708A (en) | Turbo fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |