CN111969767A - Motor cooling system and motor - Google Patents

Motor cooling system and motor Download PDF

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Publication number
CN111969767A
CN111969767A CN202010670528.5A CN202010670528A CN111969767A CN 111969767 A CN111969767 A CN 111969767A CN 202010670528 A CN202010670528 A CN 202010670528A CN 111969767 A CN111969767 A CN 111969767A
Authority
CN
China
Prior art keywords
end cover
motor
cooling
rotating shaft
shell
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
CN202010670528.5A
Other languages
Chinese (zh)
Inventor
方海洋
郭佳雄
李大伟
范兴纲
曲荣海
孙剑波
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.)
Huazhong University of Science and Technology
Original Assignee
Huazhong University of Science and Technology
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 Huazhong University of Science and Technology filed Critical Huazhong University of Science and Technology
Priority to CN202010670528.5A priority Critical patent/CN111969767A/en
Publication of CN111969767A publication Critical patent/CN111969767A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • 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
    • H02K1/32Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • 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
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/19Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Abstract

The invention discloses a motor cooling system and a motor, belonging to the technical field of motor cooling and comprising: the heat dissipation device comprises a shell, a first end cover, a second end cover and a heat dissipation fan; the first end cover and the second end cover are respectively arranged at two ends of the shell; the shell, the first end cover and the second end cover are respectively provided with a flow guide channel which is communicated with each other, and the flow guide channel and a gap in a motor rotor cavity form a flow guide system which radially surrounds the stator core; the heat dissipation fan is arranged on a rotating shaft of the motor and is used for generating directional airflow under the driving of the rotating shaft, and the directional airflow generates airflow circulation and takes away heat after passing through the flow guide system. The liquid cooling system formed by the cooling flow channel and the gas cooling system formed by the air channel simultaneously dissipate heat, so that the heat dissipation efficiency of the motor, particularly the cooling efficiency of the rotor, can effectively conduct heat generated by the work of the motor, the integral cooling effect of the motor is better, and the service life and the use safety factor of the motor are improved.

Description

Motor cooling system and motor
Technical Field
The invention belongs to the technical field of motor cooling, and particularly relates to a motor cooling system and a motor.
Background
Traffic electrification is a current development trend, and the requirements of high-power and high-strength vehicles such as automobiles and airplanes on electric motors and generators with high power density and extreme environment resistance are more and more urgent.
The permanent magnet motor is widely applied to various industrial fields such as an aircraft engine starter generator, an aerospace vacuum motor, a motor in a drilling well, an electric automobile starter generator and the like by virtue of the advantages of high torque density, high efficiency, high rotating speed and the like. The motor has the advantages of high power density, high unit volume loss, compact structure and limited heat dissipation area, so the operating temperature range is large, the inner side of a stator core is cooled by oil, and the stator and the rotor are separated by an oil isolating ring, thereby affecting the heat dissipation of the rotor side. In order to ensure the heat dissipation performance of the magnetic steel, the rotor support is made of a material with a high heat conductivity coefficient (such as high-strength aluminum alloy), the rotating shaft is made of a material with a high strength (such as titanium alloy, 40Cr steel and the like), the heat of the rotor magnetic steel needs to be dissipated through the rotor support and the rotating shaft, and the heat dissipation is affected due to the fact that the heat dissipation area of the rotating shaft is small.
Fig. 1 shows a high-temperature resistant rotor structure provided in the prior art, in which: 1-shaft, 2-magnetic steel, 3-sheath and 4-baffle. The shaft is made of 1Cr17Ni2, and after the key slot, thread, tool withdrawal groove and step of the shaft are machined, four radial grooves are uniformly machined on the surface of the maximum diameter position of the shaft, and sand blasting is performed on the radial grooves. However, the prior art has the following disadvantages: the heat is taken away only by the opening of the rotating shaft. However, since the heat dissipation area of the rotating shaft is limited, heat cannot be efficiently dissipated.
Disclosure of Invention
Aiming at the defects or improvement requirements in the prior art, the invention provides a motor cooling system and a motor, so that the technical problem of poor heat dissipation of magnetic steel temperature caused by high rotor temperature and small heat dissipation area of a rotating shaft in the prior art is solved.
To achieve the above object, according to one aspect of the present invention, there is provided a motor cooling system including: the heat dissipation device comprises a shell, a first end cover, a second end cover and a heat dissipation fan;
the first end cover and the second end cover are respectively arranged at two ends of the shell;
the shell, the first end cover and the second end cover are respectively provided with a flow guide channel which is communicated with each other, and a flow guide system which radially surrounds the stator core is formed by the flow guide channel and a gap in the cavity of the motor rotor;
the heat dissipation fan is arranged on the motor rotating shaft and used for rotating under the driving of the rotating shaft to generate directional airflow, and the directional airflow generates airflow circulation and takes away heat after passing through the diversion system.
Preferably, the flow guide channel comprises a first end cover air duct, a machine shell air duct and a second end cover air duct;
the first end cover air channels are arranged at intervals along the radius of the first end cover; the second end cover air channels are arranged at intervals along the radius of the second end cover; the casing air duct is arranged along the radial direction of the casing at intervals.
Preferably, the air conditioner further comprises a first air duct hole, wherein the first air duct hole is arranged at one end, close to the rotating shaft, of the first end cover air duct; the first air duct hole is used for leading the directional airflow generated by the cooling fan into the first end cover air duct.
Preferably, the air duct further comprises a second air duct hole, and the second air duct hole is arranged at one end, close to the rotating shaft, of the second end cover air duct; the second air duct hole is used for enabling the directional air flow to enter the rotor cavity.
Preferably, the air conditioner further comprises a rotating shaft air duct, the rotating shaft air duct is arranged on the rotating shaft at intervals along the axis of the rotating shaft, and the rotating shaft air duct is used for enabling the directional airflow to flow in and take away heat of the rotating shaft.
Preferably, the pivot encircles and is equipped with the magnet steel, the magnet steel is equipped with the magnet steel interval, the magnet steel spaced outside or magnet steel spaced inside is equipped with the edge the magnet steel interval wind channel that the pivot axial distributes, the both ends in magnet steel interval wind channel are equipped with the shaft shoulder wind channel hole.
Preferably, the cooling device further comprises a liquid cooling mechanism, wherein the liquid cooling mechanism comprises a cooling medium inlet, a cooling medium outlet and a cooling flow channel;
the cooling medium inlet is arranged on the outer surface of the shell; the cooling medium outlet is arranged on the outer surface of the shell; the cooling flow channel is arranged between the inner surface of the shell and the outer surface of the shell; the cooling flow channel is respectively communicated with the cooling medium inlet and the cooling medium outlet.
Preferably, the cooling flow passage extends in an axial S-shape of the casing, the cooling medium inlet is disposed adjacent to the first end cover, and the cooling medium outlet is disposed adjacent to the second end cover.
Preferably, the cooling device also comprises a stator cooling mechanism, wherein the stator cooling mechanism comprises an oil inlet, an oil outlet and an oil-isolating ring;
the oil inlet is arranged on the first end cover; the oil outlet is arranged on the second end cover; the oil-separating ring is arranged outside the rotor and forms a cooling cavity for cooling the stator iron core with the machine shell.
According to another aspect of the invention, there is provided an electric machine comprising an electric machine cooling system as described above.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
1. according to the invention, the diversion channels are arranged on the end cover and the shell, so that hot air blown out by the cooling fan is cooled through the end cover and the shell, and heat is dissipated, the temperature of the motor is effectively reduced, the service life of the motor is prolonged, and the safety factor of the motor is improved;
2. the liquid cooling system formed by the cooling flow channel and the gas cooling system formed by the air channel simultaneously dissipate heat, so that the heat dissipation efficiency of the motor is improved, the heat generated by the motor during working can be effectively conducted, and the integral cooling effect of the motor is better.
Drawings
FIG. 1 is a schematic structural view of a high temperature resistant rotor provided by the prior art;
fig. 2 is a schematic view of a heat dissipation structure of a rotor of an electric machine provided in an embodiment of the present invention;
FIG. 3 is a schematic view of an oil-cooled structure of a stator of an electric machine provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a heat dissipation air duct of a motor rotor provided in an embodiment of the present invention;
FIG. 5 is a schematic view of a rotor side structure provided in an embodiment of the present invention;
FIG. 6 is a schematic view of a cycle of heat dissipation air volume of a rotor of a motor according to an embodiment of the present invention;
fig. 7 is a schematic view of a heat dissipation structure of a rotor of an electric motor according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a stator oil cooling and casing water cooling configuration provided in an embodiment of the present invention;
fig. 9 is a schematic view illustrating the flow direction of the air duct and the water duct in the motor housing structure according to an embodiment of the present invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: a first end cap 1; a housing 2; a rotating shaft 3; a bearing 4; an oil-separating ring 5; a heat radiation fan 6; magnetic steel 7; a stator core 8; a winding 9; a second end cap 10; an oil outlet 11; an oil inlet 12; a first end cap air duct 14; a cabinet air duct 15; a second end cap air duct 16; the first air passage hole 17; a second air duct hole 18; a cooling medium inlet 19; a cooling medium outlet 20; a cooling flow passage 21; a magnetic steel spacing air duct 22; a rotating shaft air duct 23; shoulder duct holes 24; the magnetic steel spacing is 25.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 2, in one embodiment of the present invention, a cooling system for an electric machine is provided, including: the motor comprises a first end cover 1, a machine shell 2, a rotating shaft 3, a bearing 4, a cooling fan 6, magnetic steel 7, a stator core 8, a winding 9 and a second end cover 10, wherein the first end cover 1 is tightly matched with the machine shell 2 through screws, and the second end cover 10 is tightly matched with the machine shell 2 through screws. The heat dissipation fan 6 is disposed on the rotating shaft 3, and two ends of the rotating shaft 3 are disposed on the bearings 4. It should be noted that, the heat dissipation fan 6 is installed on the rotating shaft 3 in an interference fit manner, when the motor works, the rotation of the rotating shaft 3 can drive the heat dissipation fan 6 to rotate to generate air flow, and the heat dissipation fan 6 can be conveniently disassembled and assembled through the interference fit.
Further, as shown in fig. 3, which is a schematic view of an oil cooling structure of a stator of a motor provided in an embodiment of the present invention, the motor cooling system further includes a stator cooling mechanism, where the stator cooling mechanism includes the oil inlet 12, the oil outlet 11, and the oil-separating ring 5. The oil inlet 12 is arranged on the first end cover 1, the number of the oil inlets 12 is two, the two oil inlets 12 are respectively arranged on two sides of the rotating shaft 3, the oil outlet 11 is arranged on the second end cover 10, and the number of the oil outlets 11 is also two. The windings 9 are arranged on two sides of the stator core 8, and the oil-separating ring 5 separates a stator structure and a rotor structure which are positioned in the machine shell 1, so that a cooling medium for cooling the stator structure is prevented from flowing into the rotor structure to cause damage to the motor. The cooling medium required by the stator is injected from the oil inlet 12, the cooling medium passes through the high-temperature stator core 8 and the high-temperature winding 9, the heat generated by the stator core 8 and the high-temperature winding 9 is reduced, and when the cooling medium needs to be replaced, the cooling medium can be discharged through the oil outlet 11.
To explain further, the present invention includes a cooling system for the rotor mechanism in addition to the stator cooling mechanism. Specifically, as shown in fig. 4, in the structural schematic view of the heat dissipation air duct of the motor rotor provided in the embodiment of the present invention, the first end cover 1 is provided with the first end cover air duct 14, and one end of the first end cover air duct 14 close to the rotating shaft 3 is provided with a first air duct hole 17. The second end cap 10 is provided with the second end cap air duct 16, and one end of the second end cap air duct 16 close to the rotating shaft 3 is provided with a second air duct hole 18. The housing 2 is provided with a housing air duct 15. Specifically, two ends of the casing duct 15 are respectively communicated with the first end cover duct 14 and the second end cover duct 16. It should be noted that one or more first end cover air ducts 14 are provided, the first end cover air duct 14 is arranged along the radial direction of the first end cover 1, similarly, the second end cover air duct 16 is arranged along the radial direction of the second end cover 10 and symmetrically to the first end cover air duct 14, and the casing air duct 15 is arranged along the axial direction of the casing 2, so that the smoothness of air flow circulation is ensured. It should be noted that the number of the first end cover air ducts 14, the cabinet air ducts 15, and the second end cover air ducts 16 is the same. As shown in fig. 6, in the schematic view of the circulation of the heat dissipating air volume of the motor rotor provided in the embodiment of the present invention, when the cooling system works, the rotating shaft 3 rotates to drive the heat dissipating fan 6 to rotate, the directional air flow generated by the rotation of the heat dissipating fan flows into the first end cover air duct 14 through the first air duct hole 17, then flows into the second end cover air duct 16 through the casing air duct 15, flows into the rotor of the motor through the second air duct hole 18, and the air flow carries the heat generated by the stator core 8 and the rotating shaft 3, and is blown into the first end cover air duct 14 again through the heat dissipating fan 6, so as to form a set of flow guiding system, and when the motor works, the heat generated by the stator can be taken away through the circulation of the air flow. Compared with the prior art in which a rotating shaft is provided with a hole or a cooling system is additionally added, the motor cooling system provided by the invention has the advantages that the manufacturing process is simple, the cooling system synchronously works when the motor works, the operation and the stop of the cooling system do not need to be controlled, and the heat dissipation cost of the motor is reduced.
To be further described, the cooling system of the rotor mechanism further includes a rotating shaft air duct 23 and a magnetic steel spacing air duct 22. Specifically, as shown in fig. 5 and 6, the rotating shaft 3 is provided with a plurality of through grooves distributed along the axial direction to form the rotating shaft air duct 23, the rotating shaft air duct 23 is an arc shape bent towards the axis direction of the rotating shaft 3, and when the rotating shaft 3 works, the directional air flow is utilized to pass through the rotating shaft air duct 23, so that heat generated by the rotating shaft 3 during working can be taken away. It should be noted that, because the rotating shaft air duct 23 is arc-shaped, the temperature at the axis of the rotating shaft can be cooled better. Magnet steel interval wind channel 22 is a plurality of magnet steel interval 25 forms, works as when directional air current flows, can take away the heat that magnet steel 7 produced, the both ends in magnet steel interval wind channel 22 are equipped with shaft shoulder wind channel hole 24 respectively, are used for directional air current flow in and flow out. The invention has better cooling effect and ensures the normal operation of the motor by arranging the magnetic steel spacing air duct and the rotating shaft air duct.
Further, the rotor mechanism may also be a built-in magnetic steel structure, and a ventilation hole is formed at the rotor core or a ventilation channel is arranged inside the magnetic steel slot, or a flow guide system may be formed with the flow guide channel.
Another embodiment of the present invention provides a motor cooling system, as shown in fig. 7, which is a schematic diagram of a heat dissipation structure of a motor rotor provided in an embodiment of the present invention, in addition to the structure described in the above embodiment, the motor cooling system further includes: the liquid cooling mechanism comprises a cooling medium inlet 19, a cooling medium outlet 20 and a cooling flow channel 21, the cooling flow channel 21 is a closed channel, two ports of the cooling flow channel 21 are respectively connected to the cooling medium outlet 20 and the cooling medium inlet 19, the cooling medium inlet 19 is arranged on the outer surface of the machine shell 2, and the cooling medium outlet 20 is arranged on the outer surface of the machine shell 2.
To explain further, as shown in the schematic diagram of the stator oil cooling and housing water cooling structure provided in the embodiment of fig. 8, the cooling medium inlet 19 is disposed near one side of the first end cover 1, and the cooling medium outlet 20 is disposed near one side of the second end cover 10, and is in the same direction as the oil inlet 12 and the oil outlet 11 of the stator cooling mechanism, so as to facilitate an operator to replace the cooling medium or discharge the cooling medium.
Further, as shown in fig. 9, which is a schematic view illustrating the flow directions of the air duct and the water duct in the motor housing structure provided in the embodiment of the present invention, in this embodiment, the cooling flow channel 21 of the liquid cooling mechanism extends in an S shape along the axial direction of the housing 2, and the structure of the cooling flow channel 21 is similar to a serpentine structure when queuing, so that the cooling flow channel 21 in this embodiment can reach the maximum distribution area in a limited housing area, and can effectively improve the heat dissipation efficiency of the motor. It should be noted that the structure of the cooling flow channel 21 in the present embodiment is not limited to the S-shaped structure, and other structures such as a spiral structure, a Z-shaped structure, and the like that increase the cooling area are also included in the protection scope of the present invention. Specifically, the cooling flow channel 21 is disposed between the casing air duct 15 and the outer surface of the casing 2. The liquid cooling system that forms through the cooling runner in this embodiment dispels the heat simultaneously with the gas cooling system that the wind channel formed, has improved the radiating efficiency of motor, and the heat that can effectual conduction motor work produced makes the holistic cooling effect of motor better, has improved the running life and the factor of safety in utilization of motor.
In a further description, the cooling medium is water or other fluid having a cooling function.
In a further aspect, the present invention also provides an electric machine including the cooling system for an electric machine as described above.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. An electric machine cooling system, comprising: the heat dissipation device comprises a shell, a first end cover, a second end cover and a heat dissipation fan;
the first end cover and the second end cover are respectively arranged at two ends of the shell;
the shell, the first end cover and the second end cover are respectively provided with a flow guide channel which is communicated with each other, and a flow guide system which radially surrounds the stator core is formed by the flow guide channel and a gap in the cavity of the motor rotor;
the heat dissipation fan is arranged on the motor rotating shaft and used for rotating under the driving of the rotating shaft to generate directional airflow, and the directional airflow generates airflow circulation and takes away heat after passing through the diversion system.
2. A motor cooling system according to claim 1, characterized in that: the flow guide channel comprises a first end cover air channel, a shell air channel and a second end cover air channel;
the first end cover air channels are arranged at intervals along the radius of the first end cover; the second end cover air channels are arranged at intervals along the radius of the second end cover; the casing air duct is arranged along the radial direction of the casing at intervals.
3. A motor cooling system according to claim 2, characterized in that: the first air duct hole is arranged at one end of the first end cover air duct close to the rotating shaft; the first air duct hole is used for leading the directional airflow generated by the cooling fan into the first end cover air duct.
4. A motor cooling system according to claim 3, characterized in that: the second air duct hole is arranged at one end, close to the rotating shaft, of the second end cover air duct; the second air duct hole is used for enabling the directional air flow to enter the rotor cavity.
5. The motor cooling system of claim 4, wherein: the air conditioner further comprises a rotating shaft air channel, wherein the rotating shaft air channel is arranged on the rotating shaft at intervals of the axis of the rotating shaft, and the rotating shaft air channel is used for enabling the directional airflow to flow in and take away the heat of the rotating shaft.
6. A motor cooling system according to claim 4 or 5, characterized in that: the utility model discloses a pivot, including pivot, magnet interval wind channel, shaft shoulder wind channel hole, pivot, magnet, bearing.
7. The motor cooling system of claim 6, wherein: the liquid cooling mechanism comprises a cooling medium inlet, a cooling medium outlet and a cooling flow channel;
the cooling medium inlet is arranged on the outer surface of the shell; the cooling medium outlet is arranged on the outer surface of the shell; the cooling flow channel is arranged between the inner surface of the shell and the outer surface of the shell; the cooling flow channel is respectively communicated with the cooling medium inlet and the cooling medium outlet.
8. The motor cooling system of claim 7, wherein: the cooling flow passage extends in an axial S-shape of the casing, the cooling medium inlet is disposed adjacent to the first end cap, and the cooling medium outlet is disposed adjacent to the second end cap.
9. The motor cooling system of claim 8, wherein: the stator cooling mechanism comprises an oil inlet, an oil outlet and an oil isolating ring;
the oil inlet is arranged on the first end cover; the oil outlet is arranged on the second end cover; the oil-separating ring is arranged outside the rotor and forms a cooling cavity for cooling the stator iron core with the machine shell.
10. An electric machine comprising an electric machine cooling system according to any one of claims 1-7.
CN202010670528.5A 2020-07-13 2020-07-13 Motor cooling system and motor Pending CN111969767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010670528.5A CN111969767A (en) 2020-07-13 2020-07-13 Motor cooling system and motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010670528.5A CN111969767A (en) 2020-07-13 2020-07-13 Motor cooling system and motor

Publications (1)

Publication Number Publication Date
CN111969767A true CN111969767A (en) 2020-11-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010670528.5A Pending CN111969767A (en) 2020-07-13 2020-07-13 Motor cooling system and motor

Country Status (1)

Country Link
CN (1) CN111969767A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112117858A (en) * 2020-09-25 2020-12-22 卧龙电气(上海)中央研究院有限公司 Motor with cooling structure
CN113014016A (en) * 2021-02-09 2021-06-22 珠海格力电器股份有限公司 Cooling system, rotor structure and have its motor
CN113517787A (en) * 2021-04-09 2021-10-19 南京航空航天大学 Oil cooling motor with bidirectional oil spraying structure

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CN206313578U (en) * 2016-12-29 2017-07-07 大连日牵电机有限公司 A kind of articulated truck synchronous traction generator
CN107528423A (en) * 2017-10-17 2017-12-29 广州市香港科大霍英东研究院 A kind of small-size wind power-generating closed permanent magnet generator
CN107910968A (en) * 2017-12-04 2018-04-13 安源客车制造有限公司 Bus motor assembly
CN108539889A (en) * 2018-03-30 2018-09-14 合肥巨动力系统有限公司 A kind of permanent-magnetic synchronous motor rotor air-cooled structure
CN109194037A (en) * 2018-10-30 2019-01-11 清华大学 A kind of oil-cooled motor can isolate motor stator, rotor place space
CN110474482A (en) * 2019-08-19 2019-11-19 抚顺煤矿电机制造有限责任公司 Wind path and water route Two-way Cycle cooling structure inside a kind of motor
CN110868002A (en) * 2019-12-25 2020-03-06 苏州保邦电气有限公司 Novel integrated water cooling system of high-speed permanent magnet motor
CN210693690U (en) * 2019-08-19 2020-06-05 抚顺煤矿电机制造有限责任公司 Inside wind path of motor and two circulative cooling structures in water route

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Publication number Priority date Publication date Assignee Title
CN102723834A (en) * 2012-04-25 2012-10-10 山西北方机械制造有限责任公司 Permanent magnet synchronous motor
KR101354670B1 (en) * 2012-08-31 2014-02-03 한국과학기술원 Generator
KR20160072548A (en) * 2014-12-15 2016-06-23 현대중공업 주식회사 Air Guide Apparatus Induction Motor
CN106130260A (en) * 2016-07-05 2016-11-16 北京超同步伺服股份有限公司 There is the motor of direct-cooled structure
CN206313578U (en) * 2016-12-29 2017-07-07 大连日牵电机有限公司 A kind of articulated truck synchronous traction generator
CN107528423A (en) * 2017-10-17 2017-12-29 广州市香港科大霍英东研究院 A kind of small-size wind power-generating closed permanent magnet generator
CN107910968A (en) * 2017-12-04 2018-04-13 安源客车制造有限公司 Bus motor assembly
CN108539889A (en) * 2018-03-30 2018-09-14 合肥巨动力系统有限公司 A kind of permanent-magnetic synchronous motor rotor air-cooled structure
CN109194037A (en) * 2018-10-30 2019-01-11 清华大学 A kind of oil-cooled motor can isolate motor stator, rotor place space
CN110474482A (en) * 2019-08-19 2019-11-19 抚顺煤矿电机制造有限责任公司 Wind path and water route Two-way Cycle cooling structure inside a kind of motor
CN210693690U (en) * 2019-08-19 2020-06-05 抚顺煤矿电机制造有限责任公司 Inside wind path of motor and two circulative cooling structures in water route
CN110868002A (en) * 2019-12-25 2020-03-06 苏州保邦电气有限公司 Novel integrated water cooling system of high-speed permanent magnet motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112117858A (en) * 2020-09-25 2020-12-22 卧龙电气(上海)中央研究院有限公司 Motor with cooling structure
CN113014016A (en) * 2021-02-09 2021-06-22 珠海格力电器股份有限公司 Cooling system, rotor structure and have its motor
CN113517787A (en) * 2021-04-09 2021-10-19 南京航空航天大学 Oil cooling motor with bidirectional oil spraying structure

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