CN112865427A - Winding heat radiation structure, rotor and motor - Google Patents

Winding heat radiation structure, rotor and motor Download PDF

Info

Publication number
CN112865427A
CN112865427A CN202110043484.8A CN202110043484A CN112865427A CN 112865427 A CN112865427 A CN 112865427A CN 202110043484 A CN202110043484 A CN 202110043484A CN 112865427 A CN112865427 A CN 112865427A
Authority
CN
China
Prior art keywords
rotor
heat dissipation
motor
dissipation structure
winding
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.)
Pending
Application number
CN202110043484.8A
Other languages
Chinese (zh)
Inventor
王海洋
孙辉
梦醒
肖胜宇
高明世
唐林
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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 Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202110043484.8A priority Critical patent/CN112865427A/en
Publication of CN112865427A publication Critical patent/CN112865427A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/02Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06Arrangements 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/08Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The invention provides a winding heat dissipation structure, a rotor and a motor, relates to the technical field of motors, and solves the technical problem of poor heat dissipation capability of the motor. The winding heat dissipation structure comprises a base arranged between a control panel and a rotor core, a fastening structure arranged between the bases and used for being connected with a rotor shaft, and multi-wing fan blades arranged on the base and used for dissipating heat; the rotor comprises a rotor shaft, a rotor iron core, rotor magnetic steel, a control panel and a winding heat dissipation structure; the motor comprises a shell, a stator core, an insulating framework and a rotor. The structure that the rotor magnetic steel of the motor is flush with the rotor core silicon steel sheet and the top of the rotor magnetic steel is superposed with the bottom of the heat dissipation structure is adopted, so that unnecessary through holes and corners designed for installation on the fan blades of the motor are avoided, and the noise generated by the heat dissipation structure due to turbulent flow in the operation process is reduced; the temperature of the surface of the motor winding is reduced through the closed heat dissipation air path, so that the overall temperature of the motor is reduced, and the efficiency and the reliability of the motor are improved.

Description

Winding heat radiation structure, rotor and motor
Technical Field
The invention relates to the technical field of motors, in particular to a winding heat dissipation structure, a rotor and a motor.
Background
As shown in fig. 1, the conventional rotor assembly of the brushless dc motor includes a rotor shaft 9, a rotor core 10 mounted on the rotor shaft 9, and rotor magnetic steels 11 embedded in the rotor core 10; because the motor with higher rotating speed can generate larger heat in the winding in the running process, the internal temperature of the motor can be very high, the energy consumption of the motor can be increased, the efficiency is reduced, and the service life is shortened.
In order to reduce the internal temperature of the motor, the existing brushless direct current motor is provided with a heat dissipation structure on a rotor shaft in an interference fit manner, and the heat dissipation structure is positioned above a rotor iron core 10; specifically, as shown in fig. 1, the heat dissipation structure includes a middle fastening component 3 and a fan blade 1 disposed between adjacent rotor magnetic steels 11 for rotor heat dissipation, and since the existing motor rotor magnetic steel 11 protrudes out of the rotor core 10, the fan blade 1 is not easily matched with the rotor core 10, in order to make the fastening structure 3 closely attached to the rotor core 10, a through hole 4 is disposed below the upper eccentric portion of the fan blade 1, so as to ensure that the heat dissipation structure is normally mounted on the rotor shaft 9; in order to make flabellum 1 have bigger amount of wind area of contact and avoid flabellum 1 to contact stator core, the design of 1 tail end of flabellum has protruding 2 irregular shape, has ensured that heat radiation structure cooperates with motor stator core more easily, makes this heat radiation structure can stabilize the output amount of wind, through setting up heat radiation structure, can carry out effectual heat dissipation in order to improve motor performance to the motor at electric motor rotor rotation in-process.
The applicant has found that the prior art has at least the following technical problems:
due to the irregular structures of the through hole 4 on the heat dissipation structure, the bulge 2 at the tail end of the fan blade 1 and the like and the uneven structure of the rotor iron core 10 and the rotor magnetic steel 11, the heat dissipation structure can form turbulent flow in the rotation process of the motor, and certain noise is easy to generate; and its heat dissipation mode utilizes fan flabellum to follow the rotor rotation and realizes the air disturbance in the motor, accelerate the air current velocity of flow and carry out the heat dissipation, do not have fixed business turn over wind mode in the heat dissipation process, namely in the motor motion process, the effect of its performance is at the inside air disturbance that forms of motor, can only make the air irregularly circulate, can not effectually give off the heat to the casing outside, can't form better air heat dissipation route, can't reach the purpose of exchanging with external heat, and the in-process of blowing still need pass through the outstanding rotor magnet steel position that has certain heat, the temperature of the cold air of sending to stator core has been risen, therefore its radiating effect is not very good in the rotation process, the motor heat-sinking capability is relatively poor.
Disclosure of Invention
The invention aims to provide a winding heat dissipation structure arranged on a rotor, the rotor and a motor, and aims to solve the technical problem of poor heat dissipation capability of the motor in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a winding heat dissipation structure which comprises a base arranged between a control board and a rotor core, a fastening structure arranged in the middle of the base and used for being connected with a rotor shaft, and multi-wing fan blades arranged on the base and used for dissipating heat.
As a further improvement of the invention, the outer edges of the base, the rotor core and the rotor magnetic steel are arranged in parallel.
As a further improvement of the invention, the base is tightly connected with the rotor core.
As a further improvement of the invention, the fastening structure is connected with the rotor shaft in a cold-pressing interference fit mode.
As a further improvement of the invention, the fan also comprises an air inlet hole which is arranged on the control panel and used for providing cold air for the fan blades of the multi-wing fan. And a closed heat dissipation air path is formed among the stator core, the shell, the air inlet hole and the multi-wing fan blades.
As a further improvement of the invention, the diameter of the air inlet hole is equal to the diameter of the connecting bearing between the rotor shaft and the casing.
As a further improvement of the present invention, the winding heat dissipation structure further includes a cover plate disposed on top of the blades of the multi-wing fan.
As a further improvement of the invention, the air inlet is arranged at the center of the control board, and the electronic components on the control board are distributed on the control board positioned at the outer side of the fan blades of the multi-wing fan.
As a further improvement of the invention, the air inlet is arranged at the center of the control board, and the electronic components on the control board are distributed on the whole control board.
The invention provides a rotor which comprises a rotor shaft, a rotor iron core, rotor magnetic steel, a control panel and a winding heat dissipation structure.
The invention provides a motor which comprises a machine shell, a stator core, an insulating framework and a rotor.
Compared with the prior art, the invention has the following beneficial effects:
according to the winding heat dissipation structure, the proper heat dissipation structure is adopted, cold air above the motor is sucked into the heat dissipation structure and blown onto the motor winding through the multi-wing fan in the motor operation process, hot air generated due to the heat of the motor winding is blown onto the surface of the shell, the shell exchanges heat with outside air to reduce the overall temperature of the motor, and the cooled air enters the heat dissipation structure to form a heat dissipation cold air circulation, so that the heat generated after the motor winding is electrified is reduced, the temperature of the motor body is reduced, the energy consumption of the motor is reduced, and the motor operation efficiency is improved; the structure that motor rotor magnetic steel and rotor core silicon steel sheet parallel and level, rotor magnetic steel top and heat radiation structure bottom coincidence are adopted avoids unnecessary through-hole and corner of design for the installation above the motor flabellum, has reduced heat radiation structure because the noise that the sinuous flow produced in service.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a heat dissipation structure installed in a rotor assembly of a prior art brushless dc motor;
fig. 2 is a schematic perspective view of a first embodiment of a winding heat dissipation structure according to the present invention;
fig. 3 is a schematic perspective view of a second embodiment of a winding heat dissipation structure according to the present invention;
fig. 4 is a front sectional view of a first embodiment of the motor of the present invention;
fig. 5 is a front sectional view of a second embodiment of the motor of the present invention.
In the figure 1, fan blades; 2. a protrusion; 3. a fastening member; 4. a through hole; 5. a cover plate; 7. a fastening structure; 8. a base; 9. a rotor shaft; 10. a rotor core; 11. rotor magnetic steel; 12. a housing; 13. an electronic component; 14. a control panel; 15. an insulating framework; 16. a stator core; 17. the multi-wing fan blade.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1:
as shown in fig. 2, the present invention provides a winding heat dissipation structure mounted on a rotor shaft 9 in an interference fit manner, which includes a base 8 disposed below a control board 14 and directly above a rotor core 10, a fastening structure 7 disposed in the middle of the base 8 for connecting with the rotor shaft 9, and multiple-wing fan blades 17 disposed on the base 8 for dissipating heat and ensuring the amount of heat dissipated.
In order to avoid the situation that the base 8 of the winding heat dissipation structure is not overlapped with the rotor core 10 and reduce the noise of the heat dissipation structure during operation, the outer edge of the base 8, the outer edge of the rotor core 10 and the outer edge of the rotor magnetic steel 11 are arranged in a flush mode.
Further, in order to avoid the formation of through holes on the blades 17 of the multi-wing fan, in the present invention, the base 8 is tightly connected to the rotor core 10, and further, the tight connection is bonding, and by tightly connecting the base 8 to the rotor core 10, the formation of through holes for fixing to the rotor is avoided, thereby ensuring low noise of the heat dissipation structure of the motor.
It should be noted here that the fastening structure 7 is a sleeve-shaped structure, and the fastening structure 7 is connected with the rotor shaft 9 by a cold press interference fit. The base 8 is mounted at the bottom of the fastening structure 7. The base 8 is made of a disc-shaped plate-shaped material. The multiple-wing fan blades 17 are circumferentially arranged along the edge of the base 8.
As shown in fig. 4, in order to supply more cool air to the heat dissipation structure, a large-sized air inlet hole is further included on the control board 14 for supplying cool air to the multi-wing fan blades 17.
Through setting up the inlet port for form closed cooling air path between stator core 16, casing 12, fresh air inlet, the multiple wing fan flabellum 17. The winding heat radiation structure of the embodiment mainly radiates the motor winding by the multi-wing fan blades 17 around in the rotation process of the motor, and the air inlet mode is as follows: in the rotation process of the motor, the winding heat dissipation structure absorbs cold air above the motor from the middle, blows the cold air onto the stator core 16 of the motor from the multi-wing fan blades 17 around, and blows air with higher temperature on the stator core 16 onto the shell 12, and then performs heat exchange with outside air through the shell 12 to dissipate heat, and finally the cold air with reduced temperature enters the multi-wing fan blades 17 from above the motor to form a closed heat dissipation air path; therefore, the winding heat dissipation structure can exchange cold and hot air on the winding, and can effectively reduce the temperature of the winding; and because the regular air path is adopted and no redundant through holes and structures are arranged on the blades of the multi-wing fan, the situation that the redundant air path generates larger noise when the heat dissipation structure dissipates heat in the rotation process of the motor can be avoided.
Further, the air intake hole diameter is equal to the connection bearing diameter between the rotor shaft 9 and the housing 12.
It should be noted here that, because the multi-blade fan blade 17 is in an air flow circulation mode of air flow that is exhausted around the central air inlet, the air inlet is opened at the central position of the control board 14, and in order to avoid the electronic component 13 from contacting with the multi-blade fan blade 17, the electronic component 13 on the control board 14 is distributed on the control board 14 located outside the multi-blade fan blade 17, and thus there is no electronic component 13 right above the winding heat dissipation structure, and the multi-blade fan blade 17 is prevented from contacting with the electronic component 13 and the circuit, and the heat dissipation structure can also dissipate heat for the control components on the control board 14 as much as possible.
Example 2:
as shown in fig. 3, the present invention provides a winding heat dissipation structure mounted on a rotor shaft 9 in an interference fit manner, which includes a base 8 disposed below a control board 14 and directly above a rotor core 10, a fastening structure 7 disposed in the middle of the base 8 for connecting with the rotor shaft 9, and multiple-wing fan blades 17 disposed on the base 8 for dissipating heat and ensuring the amount of dissipated heat.
In order to avoid the situation that the base 8 of the winding heat dissipation structure is not overlapped with the rotor core 10 and reduce the noise of the heat dissipation structure during operation, the outer edge of the base 8, the outer edge of the rotor core 10 and the outer edge of the rotor magnetic steel 11 are arranged in a flush mode.
Further, in order to avoid the formation of through holes on the blades 17 of the multi-wing fan, in the present invention, the base 8 is tightly connected to the rotor core 10, and further, the tight connection is bonding, and by tightly connecting the base 8 to the rotor core 10, the formation of through holes for fixing to the rotor is avoided, thereby ensuring low noise of the heat dissipation structure of the motor.
It should be noted here that the fastening structure 7 is a sleeve-shaped structure, and the fastening structure 7 is connected with the rotor shaft 9 by a cold press interference fit. The base 8 is mounted at the bottom of the fastening structure 7. The base 8 is made of a disc-shaped plate-shaped material. The multiple-wing fan blades 17 are circumferentially arranged along the edge of the base 8.
As shown in fig. 5, in order to supply more cool air to the heat dissipation structure, a large-sized air inlet hole is further included on the control board 14 for supplying cool air to the blades 17 of the multi-wing fan. The air inlet is arranged at the center of the control plate 14.
Through setting up the inlet port for form closed cooling air path between stator core 16, casing 12, fresh air inlet, the multiple wing fan flabellum 17. The winding heat radiation structure of the embodiment mainly radiates the motor winding by the multi-wing fan blades 17 around in the rotation process of the motor, and the air inlet mode is as follows: in the rotation process of the motor, the winding heat dissipation structure absorbs cold air above the motor from the middle, blows the cold air onto the stator core 16 of the motor from the multi-wing fan blades 17 around, and blows air with higher temperature on the stator core 16 onto the shell 12, and then performs heat exchange with outside air through the shell 12 to dissipate heat, and finally the cold air with reduced temperature enters the multi-wing fan blades 17 from above the motor to form a closed heat dissipation air path; therefore, the winding heat dissipation structure can exchange cold and hot air on the winding, and can effectively reduce the temperature of the winding, thereby reducing the overall temperature of the motor and improving the efficiency and reliability of the motor; and because the regular wind path is adopted, and the multi-wing fan blades are not provided with the rotor structure with redundant through holes flush with the magnetic steel and the iron core, the phenomenon that the redundant wind path generates larger noise when the heat dissipation structure dissipates heat in the rotating process of the motor can be avoided.
Further, the air intake hole diameter is equal to the connection bearing diameter between the rotor shaft 9 and the housing 12.
As shown in fig. 5, it should be noted that since the multi-blade fan blade 17 is of an air circulation type in which air is discharged from the middle of the air inlet and around the air outlet, the air inlet is formed in the center of the control board 14, and the winding heat dissipation structure further includes a cover plate 5 disposed on the top of the multi-blade fan blade 17 in order to prevent the electronic component 13 from contacting the multi-blade fan blade 17. The multi-wing fan blades 17 are buckled through the cover plate 5, so that the air volume can be concentrated as much as possible to dissipate heat for the sub-winding, and the multi-wing fan blades 17 are prevented from contacting with the electronic component 13, so that the electronic component 13 on the control board 14 can be placed at will according to requirements, the distribution is not limited, the multi-wing fan blades 17 can be arranged above, and the electronic component 13 can be distributed on the whole control board 14.
As shown in fig. 4 and 5, the rotor provided by the present invention includes a rotor shaft 9, a rotor core 10, rotor magnetic steels 11, a control plate 14, and the winding heat dissipation structure.
As shown in fig. 4 and 5, the present invention provides a motor including a housing 12, a stator core 16, an insulating frame 15, and the above-mentioned rotor.
According to the winding heat dissipation structure, the proper heat dissipation structure is adopted, cold air above the motor is sucked into the heat dissipation structure and blown onto the motor winding through the multi-wing fan in the motor operation process, hot air generated due to the heat of the motor winding is blown onto the surface of the shell, the shell exchanges heat with outside air to reduce the overall temperature of the motor, and the cooled air enters the heat dissipation structure to form a heat dissipation cold air circulation, so that the heat generated after the motor winding is electrified is reduced, the temperature of the motor body is reduced, the energy consumption of the motor is reduced, and the motor operation efficiency is improved; the structure that motor rotor magnetic steel and rotor core silicon steel sheet parallel and level, rotor magnetic steel top and heat radiation structure bottom coincidence are adopted avoids unnecessary through-hole and corner of design for the installation above the motor flabellum, has reduced heat radiation structure because the noise that the sinuous flow produced in service.
It should be noted that "inward" is a direction toward the center of the accommodating space, and "outward" is a direction away from the center of the accommodating space.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in fig. 1 to facilitate the description of the invention and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A winding heat radiation structure is characterized by comprising a base arranged between a control panel and a rotor core, a fastening structure arranged between the base and used for being connected with a rotor shaft, and multiple-wing fan blades arranged on the base and used for radiating heat.
2. The winding heat dissipation structure of claim 1, wherein the outer edges of the base, the rotor core and the rotor magnetic steel are flush with each other.
3. The winding heat dissipation structure of claim 1, wherein the base is closely attached to the rotor core.
4. The winding heat dissipation structure of claim 1, wherein the fastening structure is coupled to the rotor shaft using a cold press interference fit.
5. The winding heat dissipation structure of claim 1, further comprising an air inlet hole disposed on the control board for providing cool air to the blades of the multi-wing fan.
6. The winding heat dissipation structure of claim 5, further comprising a cover plate disposed on top of the multi-bladed fan blades.
7. The winding heat dissipation structure of claim 5, wherein the air inlet is formed in a center of a control board, and electronic components on the control board are distributed on the control board located outside the blades of the multi-blade fan.
8. The winding heat dissipation structure of claim 6, wherein the air inlet is provided at a central position of the control board, and the electronic components on the control board are distributed on the whole control board.
9. A rotor comprising a rotor shaft, a rotor core, rotor magnetic steels, a control board and a winding heat dissipation structure as claimed in any one of claims 1 to 8.
10. An electric machine comprising a housing, a stator core, an insulating frame and a rotor as claimed in claim 9.
CN202110043484.8A 2021-01-13 2021-01-13 Winding heat radiation structure, rotor and motor Pending CN112865427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110043484.8A CN112865427A (en) 2021-01-13 2021-01-13 Winding heat radiation structure, rotor and motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110043484.8A CN112865427A (en) 2021-01-13 2021-01-13 Winding heat radiation structure, rotor and motor

Publications (1)

Publication Number Publication Date
CN112865427A true CN112865427A (en) 2021-05-28

Family

ID=76003458

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110043484.8A Pending CN112865427A (en) 2021-01-13 2021-01-13 Winding heat radiation structure, rotor and motor

Country Status (1)

Country Link
CN (1) CN112865427A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024121510A1 (en) * 2022-12-08 2024-06-13 Safran Electrical & Power Motor with integrated control with air circulation in the electronic control unit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201063497Y (en) * 2007-07-11 2008-05-21 无锡开普动力有限公司 Cooling fan structure of permanent-magnet generator
CN104124850A (en) * 2013-04-26 2014-10-29 苏州奥宝杰电机科技有限公司 Brushless motor with air cooling system
JP2014241691A (en) * 2013-06-12 2014-12-25 パナソニック株式会社 Electric motor and electric device
CN208923935U (en) * 2018-10-30 2019-05-31 泛仕达机电股份有限公司 A kind of waterproof brushless inner rotor magneto
CN111446792A (en) * 2020-04-20 2020-07-24 珠海格力电器股份有限公司 Rotor core assembly, rotor assembly and permanent magnet motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201063497Y (en) * 2007-07-11 2008-05-21 无锡开普动力有限公司 Cooling fan structure of permanent-magnet generator
CN104124850A (en) * 2013-04-26 2014-10-29 苏州奥宝杰电机科技有限公司 Brushless motor with air cooling system
JP2014241691A (en) * 2013-06-12 2014-12-25 パナソニック株式会社 Electric motor and electric device
CN208923935U (en) * 2018-10-30 2019-05-31 泛仕达机电股份有限公司 A kind of waterproof brushless inner rotor magneto
CN111446792A (en) * 2020-04-20 2020-07-24 珠海格力电器股份有限公司 Rotor core assembly, rotor assembly and permanent magnet motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024121510A1 (en) * 2022-12-08 2024-06-13 Safran Electrical & Power Motor with integrated control with air circulation in the electronic control unit
FR3143233A1 (en) * 2022-12-08 2024-06-14 Safran Electrical & Power Integrated control motor with air circulation in the electronic control unit

Similar Documents

Publication Publication Date Title
JP2765801B2 (en) Electronic component cooling device
US20030042806A1 (en) Alternator for use in a vehicle
JP2000012751A (en) Cooling fan device
CN100394677C (en) AC generator for vehicles
CN112865427A (en) Winding heat radiation structure, rotor and motor
CN220915064U (en) Heat radiation structure for magnetic suspension fan
JP4329623B2 (en) Blower fan and electronic device including the same
JPH07184351A (en) Dynamo-electric machine
CN107947470A (en) A kind of air-cooled integrated motor
CN204118934U (en) A kind of alternating current generator and rectifier stack thereof
CN105576880B (en) A kind of alternating current generator and its rectifier stack
JPH07135747A (en) Rotary electric machine
JPH07184350A (en) Dynamo-electric machine
JP2003032962A (en) Blower and refrigerator having the same
JP3533319B2 (en) Electronic component cooling device
CN219802047U (en) Motor with heat radiation structure
JP2003088014A (en) Rotating electric machine and armature therefor
TWI384130B (en) Cooling fan
JPH11324985A (en) Axial flow fan
JP2880646B2 (en) Heat sink with fan
CN220173045U (en) High-power motor
CN215934659U (en) Air suction and exhaust integrated air-cooled heat dissipation system
CN219643710U (en) Brushless generator easy to radiate
CN217685393U (en) Indoor unit of air conditioner
CN217282576U (en) Cooling structure of magnetic suspension 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
RJ01 Rejection of invention patent application after publication

Application publication date: 20210528

RJ01 Rejection of invention patent application after publication