CN109104029B - Automobile motor cooling system and automobile motor - Google Patents
Automobile motor cooling system and automobile motor Download PDFInfo
- Publication number
- CN109104029B CN109104029B CN201811009852.1A CN201811009852A CN109104029B CN 109104029 B CN109104029 B CN 109104029B CN 201811009852 A CN201811009852 A CN 201811009852A CN 109104029 B CN109104029 B CN 109104029B
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- oil
- motor
- shell
- bearing
- motor shell
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- 238000001816 cooling Methods 0.000 title claims abstract description 76
- 238000007789 sealing Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
Abstract
The invention discloses an automobile motor cooling system and an automobile motor, and belongs to the technical field of electromechanical equipment. The system comprises a motor shell, an end cover and an oil pump; the end cover covers the motor shell; a rotating shaft is arranged in the motor shell, a rotor is arranged on the rotating shaft, a stator is arranged on the rotor, a stator shell is arranged on the outer wall of the stator, and the outer wall of the stator shell is abutted against the inner wall of the motor shell; the inner wall of the motor shell is provided with a plurality of oil grooves, and the plurality of oil grooves and the stator shell form a plurality of closed first oil paths; a second oil way is arranged on the motor shell, one end of the second oil way is communicated with the oil pump, the other end of the second oil way is communicated with one of the first oil ways, one end of the first oil way communicated with the oil pump is provided with an oil inlet communicated with a gap between the motor shell and the end cover, the other end of the first oil way is closed, one end of each of the other first oil ways is provided with an oil inlet, and the other end of each of the other first oil ways is provided with an oil outlet communicated with a gap on; the bottom end of the end cover is provided with a fourth oil way; the bottom end of the motor shell is provided with a third oil way.
Description
Technical Field
The invention belongs to the technical field of electromechanical equipment, and particularly relates to an automobile motor cooling system and an automobile motor.
Background
The automobile motor is used as a power source of the electric automobile and the hybrid electric automobile and provides power for the electric automobile and the hybrid electric automobile. The required operating current is big, the rotational speed is high when automobile motor is worked, consequently, automobile motor self can produce a large amount of heats, if can not in time discharge the heat, then can bring very big side effect to automobile motor's steady operation, even automobile itself. Therefore, there is a need for an automotive motor cooling system.
The related art provides an automotive motor cooling system including: motor casing, end cover, pivot, stator, rotor, cooling jacket and oil pump. The rotor is located the pivot of motor housing, and the stator cover is equipped with the cooling jacket on the rotor on the stator, and the end cover lid closes on motor housing, and the oil pump passes through defeated oil pipe and motor housing intercommunication, rotates through the rotor, drives the cooling jacket that the coolant oil got into on the stator, and for the motor cooling.
The inventors found that the related art has at least the following technical problems:
the cover is equipped with the cooling jacket on the stator, and the cooling oil passes through the difficult high-efficient cooling and the lubrication that realize the motor of cooling jacket, leads to motor operating efficiency low, and establishes the volume that the cooling jacket needs the increase motor on the stator, and then makes the motor occupy the holistic space increase of car.
Disclosure of Invention
The embodiment of the invention provides an automobile motor cooling system and an automobile motor, which can solve the technical problem. The specific technical scheme is as follows:
in one aspect, an automotive motor cooling system is provided, the system comprising:
the motor comprises a motor shell, an end cover and an oil pump;
the end cover covers the motor shell;
a rotating shaft is arranged in the motor shell, a rotor is sleeved on the rotating shaft, a stator is sleeved on the rotor, a stator shell is arranged on the outer wall of the stator, and the outer wall of the stator shell abuts against the inner wall of the motor shell;
a plurality of oil grooves are formed in the inner wall of the motor shell, and a plurality of first closed oil passages are formed between the plurality of oil grooves and the stator shell;
a second oil way is formed in the motor shell, one end of the second oil way is communicated with the oil pump, the other end of the second oil way is communicated with one of the first oil ways, one end of the first oil way communicated with the oil pump is provided with an oil inlet communicated with a gap between the motor shell and the end cover, the other end of the first oil way is closed, one end of each of the rest first oil ways is provided with the oil inlet, and the other end of each of the rest first oil ways is provided with an oil outlet communicated with a gap on the other side of the motor shell;
a fourth oil way communicated with the gap between the motor shell and the end cover is arranged at the bottom end of the end cover;
and a third oil way communicated with the gap on the other side of the motor shell is arranged at the bottom end of the motor shell.
In one implementation manner, the cooling system for an automotive motor further includes: and an oil pan positioned at the lower ends of the fourth oil passage and the third oil passage.
In one implementation manner, the sum of the hole diameters of the fourth oil passage and the third oil passage is smaller than the hole diameter of the second oil passage.
In one implementation, a check valve is disposed between the oil pump and the second oil passage.
In one implementation, the plurality of oil grooves in the motor housing are parallel to the rotating shaft.
In another aspect, an embodiment of the present invention provides an automotive electric machine, where the electric machine includes any one of the automotive electric machine cooling systems described above.
In one implementation manner, one end of the rotating shaft is provided with a first bearing, and the first bearing is positioned between the motor shell and the rotating shaft; the other end of the rotating shaft is provided with a second bearing, and the second bearing is positioned between the rotating shaft and the end cover.
In one implementation, a bearing seat is sleeved on one end of the motor housing, which is located at the first bearing, and a bearing cover is arranged on one end of the motor housing, which is located at the second bearing.
In one implementation manner, a first sealing element is arranged between the bearing seat and the rotating shaft; a second sealing element is arranged between the motor shell and the end cover; and a third sealing element is arranged between the motor shell and the stator shell.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the plurality of oil grooves are formed in the motor shell, so that the problem that the motor is enlarged in size and further occupies the whole space of an automobile due to the fact that a cooling sleeve is sleeved on the stator is solved, meanwhile, cooling oil is in direct contact with cooled parts in the motor through the first oil way, the cooling speed is accelerated, the temperature caused by friction among the parts during operation inside the motor is effectively reduced, and efficient cooling of the motor is achieved; the cooling oil in the motor is slowly discharged by arranging the third oil way and the fourth oil way, the cooling oil in the motor is continuously updated, the circulation speed of the cooling oil is increased, the cooling efficiency of the motor is further improved, the moving rotating shaft is lubricated, the normal operation of the motor is ensured, and the operation efficiency of the motor and the service life of internal parts of the motor are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an automotive electric machine cooling system provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of an automotive electric machine cooling system provided by an embodiment of the present invention;
fig. 3 is a sectional view of a cooling system of an automotive motor according to an embodiment of the present invention.
The reference numerals denote:
1-motor housing, 101-oil groove, 102-first oil passage, 103-second oil passage, 104-third oil passage,
2-end cap, 201-fourth oil path,
3-rotating shaft, 4-stator, 5-rotor, 6-stator shell, 7-oil pump,
8-first bearing, 9-second bearing, 10-bearing seat, 11-bearing cap, 12-first seal,
13-second seal, 14-third seal, 15-check valve, 16-sump.
Detailed Description
Unless defined otherwise, all technical terms used in the examples of the present invention have the same meaning as commonly understood by one of ordinary skill in the art. In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In one aspect, an embodiment of the present invention provides an automotive motor cooling system, as shown in fig. 1, fig. 2 and fig. 3, the automotive motor cooling system including: the motor comprises a motor shell 1, an end cover 2 and an oil pump 7;
the end cap 2 covers the motor housing 1.
The pivot 3 is located motor casing 1, and rotor 5 is located pivot 3, and 4 covers of stator are located on rotor 5, and 4 outer wall covers of stator are equipped with stator housing 6, and stator housing 6's outer wall offsets with motor casing 1's inner wall.
Be equipped with pivot 3 in motor casing 1, the cover is equipped with rotor 5 in the pivot 3, and the cover is equipped with stator 4 on rotor 5, is equipped with stator housing 6 on the 4 outer walls of stator, and stator housing 6's outer wall offsets with motor casing 1's inner wall.
A plurality of oil grooves 101 are formed in the inner wall of the motor housing 1, and the plurality of oil grooves 101 and the stator housing 6 form a plurality of closed first oil passages 102.
The motor shell 1 is provided with a second oil way 103, one end of the second oil way 103 is communicated with the oil pump 7, the other end of the second oil way is communicated with one first oil way 102 of the plurality of first oil ways 102, one end of the first oil way 102 communicated with the oil pump 7 is provided with an oil inlet communicated with a gap between the motor shell 1 and the end cover 2, the other end of the first oil way is closed, one end of the rest of the plurality of first oil ways 102 is provided with an oil inlet, and the other end of the first oil way is provided with an oil outlet communicated with a gap on.
The bottom end of the end cover 2 is provided with a fourth oil passage 201 communicating with the gap between the motor housing 1 and the end cover 2.
The bottom end of the motor housing 1 is provided with a third oil path 104 which is in clearance communication with the other side of the motor housing 1.
As shown in fig. 1, fig. 2 and fig. 3, in the cooling system for the motor of the automobile according to the embodiment of the present invention, the oil pump 7 sends cooling oil into one first oil path 102 formed by the oil groove 101 and the stator housing 6 through the second oil path 103, the cooling oil enters the gap between the end cover 2 and the motor housing 1 through the oil outlet of the first oil path 102 to cool the end cover 2, the stator 4 and the rotor 5 on one side of the motor, the cooling oil flows into the remaining first oil paths 102 after reaching a certain value in the gap between the end cover 2 and the motor housing 1, the cooling oil enters the gap on the other side of the motor housing 1 through the oil outlets of the first oil paths 102 to cool the motor housing 1, the stator 4 and the rotor 5 on the other side, when the motor is cooled, the cooling oil in the gap between the end cover 2 and the motor housing 1 slowly leaks out through the fourth oil path 201, the cooling oil on the other side of the motor housing, the renewal and discharge of the cooling oil are realized.
The technical scheme provided by the embodiment of the invention at least has the following technical effects:
according to the cooling system for the automobile motor, provided by the embodiment of the invention, the plurality of oil grooves 101 are formed in the motor shell 1, so that the problem that the volume of the motor is increased and the whole space of an automobile is occupied due to the fact that the stator 4 is sleeved with the cooling sleeve is solved. Meanwhile, the cooling oil is in direct contact with cooled parts in the motor through the first oil way 102, so that the cooling rate is increased, the temperature caused by friction among the parts during operation inside the motor is effectively reduced, and the efficient cooling of the motor is realized; the third oil way 104 and the fourth oil way 201 are arranged to slowly discharge the cooling oil in the motor, the cooling oil in the motor is continuously updated, the circulation rate of the cooling oil is increased, the cooling efficiency of the motor is further improved, the moving rotating shaft 3 is lubricated, the normal operation of the motor is ensured, and the operation efficiency of the motor and the service life of parts in the motor are improved.
For example, the fourth oil path 201 and the third oil path 104 may be cylindrical through holes respectively formed in the end cover 2 and the motor housing 1, or may be square, rectangular, triangular or irregular through holes, as long as the purpose of draining the cooling oil between the end cover 2 and the motor housing 1 and on the other side of the motor housing 1 is achieved.
Optionally, the cooling system for the motor of the vehicle further comprises: the oil pan 16 is located at the lower ends of the fourth oil passage 201 and the third oil passage 104.
The third oil path 104 discharges the cooling oil on the other side of the motor housing 1, the cooling oil flows into the oil pan 16 together with the cooling oil between the motor housing 1 and the end cover 2 discharged from the fourth oil path 201, the cooling oil is injected into the motor housing 1 through the oil pump 7, and the cooling oil is discharged from the third oil path 104 and the fourth oil path 201 after being circularly cooled in the motor housing 1 and flows into the oil pan 16, so that the updating and the outward discharge of the cooling oil are realized, and the cooling efficiency of the motor is improved.
The oil pan 16 is located at the lower ends of the fourth oil passage 201 and the third oil passage 104, and collects the cooling oil leaked from the motor housing 1, and therefore, the size of the oil pan 16 is adapted to the size of the motor.
Optionally, the sum of the diameters of the fourth oil path 201 and the third oil path 104 is smaller than the diameter of the second oil path 103.
Cooling oil enters the first oil passage 102 from the oil pump 7 through the second oil passage 103, as shown in fig. 1 and 2, the fourth oil passage 201 is located at the lower end of the end cover 2, the third oil passage 104 is located at the lower end of the motor housing 1, and the second oil passage 103 is located on the motor housing 1. The second oil passage 103 is an oil inlet passage, and the cooling oil is fed into the motor housing 1 through the second oil passage 103. The third oil passage 104 and the fourth oil passage 201 are oil outlet passages, and the cooling oil between the end cover 2 and the motor housing 1 is discharged through the fourth oil passage 201. It can be understood that when a certain amount of cooling oil between the end cover 2 and the motor housing 1 is reached, the cooling oil needs to enter the other side of the motor housing 1 to cool the motor, and therefore, the oil drainage rate of the third oil path 104 and the fourth oil path 201 should be smaller than the oil inlet rate of the second oil path 103, and the oil drainage rate of the third oil path 104 and the fourth oil path 201 is controlled by controlling the size of the third oil path 104 and the fourth oil path 201, that is, the sum of the apertures of the third oil path 104 and the fourth oil path 201 is smaller than the aperture of the second oil path 103.
Alternatively, as shown in fig. 1, a check valve 15 is provided between the oil pump 7 and the second oil passage 103.
The check valve 15 is used to control the flow of the cooling oil in the oil pump 7 to flow only from the oil pump 7 to the motor and not in the reverse direction.
Alternatively, as shown in fig. 3, a plurality of oil grooves 101 in the motor housing 1 are parallel to the rotation shaft 3.
The number of oil grooves 101 may be 6-9, and may be, for example, 6, 7, 8, 9, etc. The oil groove 101 may be a regular semi-cylindrical groove, a quadrangular groove, or a slope groove having a certain slope, and the like, and when the oil groove 101 is parallel to the rotating shaft 3, the effect of cooling by circulating cooling oil is relatively non-parallel.
On the other hand, the embodiment of the invention also provides an automobile motor which is used for any one of the automobile motor cooling systems.
Optionally, as shown in fig. 1 and fig. 2, one end of the rotating shaft 3 is provided with a first bearing 8, and the first bearing 8 is located between the motor housing 1 and the rotating shaft 3; the other end of the rotating shaft 3 is provided with a second bearing 9, and the second bearing 9 is positioned between the rotating shaft 3 and the end cover 2.
A first bearing 8 and a second bearing 9 are arranged on the rotating shaft 3 and used for fixing the rotating shaft 3 to move and bearing the load from the motor shell 1.
It can be understood that, as shown in fig. 1 and fig. 2, the first bearings 8 located between the motor housing 1 and the rotating shaft 3 are two first bearings 8 arranged axially symmetrically along the rotating shaft 3; the second bearings 9 between the rotating shaft 3 and the end cover 2 are two second bearings 9 arranged axially symmetrically along the rotating shaft 3.
The first bearing 8 and the second bearing 9 on the rotating shaft 3 are lubricated by the cooling oil from the first oil path 102, so that the friction between the rotating shaft 3 and the first bearing 8 and the second bearing 9 is reduced, and the working efficiency of the motor is improved.
Alternatively, as shown in fig. 1 and fig. 2, a bearing seat 10 is sleeved on one end of the motor housing 1, which is located at the first bearing 8, and a bearing cover 11 is arranged on one end of the second bearing 9.
Optionally, as shown in fig. 1 and 2, a first sealing member 12 is disposed between the bearing housing 10 and the rotating shaft 3.
The bearing seat 10 is connected with the motor shell 1 to form a closed space, and the first sealing element 12 is arranged between the bearing seat 14 and the rotating shaft 3, so that the sealing performance between the bearing seat 10 and the motor shell 1 is further ensured, and cooling oil is prevented from leaking. The first sealing element 12 may be a sealing ring or a gasket, for example.
Optionally, as shown in fig. 1 and 2, a second sealing member 13 is provided between the motor housing 1 and the end cover 2.
In order to ensure the sealing between the motor housing 1 and the end cap 2, a second seal 13 is provided between the motor housing 1 and the end cap 2. The second seal 13 may be a seal ring or a gasket.
Optionally, as shown in fig. 1 and 2, a third seal 14 is provided between the motor housing 1 and the stator housing 6.
The stator shell 6 is sleeved on the stator 4 and abuts against the motor shell 1 to form sealing, oil leakage and air leakage phenomena are prevented when the motor shell 1 operates in order to guarantee the sealing performance between the stator shell 6 and the motor shell 1, and a third sealing element 14 is arranged between the stator shell 6 and the motor shell 1. The third sealing member 14 may be a sealing ring or a gasket, for example.
The above description is only an illustrative embodiment of the present invention, and should not be taken as limiting the scope of the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. Automobile motor cooling system, its characterized in that, automobile motor cooling system includes: the motor comprises a motor shell (1), an end cover (2) and an oil pump (7);
the end cover (2) covers the motor shell (1);
a rotating shaft (3) is arranged in the motor shell (1), a rotor (5) is sleeved on the rotating shaft (3), a stator (4) is sleeved on the rotor (5), a stator shell (6) is arranged on the outer wall of the stator (4), and the outer wall of the stator shell (6) is abutted to the inner wall of the motor shell (1);
the inner wall of the motor shell (1) is provided with a plurality of oil grooves (101), the oil grooves (101) and the stator shell (6) form a plurality of closed first oil passages (102), each oil groove (101) is a slope groove with a slope, and each oil groove (101) is parallel to the rotating shaft (3);
a second oil way (103) is formed in the motor shell (1), one end of the second oil way (103) is communicated with the oil pump (7), the other end of the second oil way is communicated with one first oil way (102) of the plurality of first oil ways (102), one end of the first oil way (102) communicated with the oil pump (7) is provided with an oil inlet communicated with a gap between the motor shell (1) and the end cover (2), the other end of the first oil way is closed, one end of each of the rest first oil ways (102) is provided with the oil inlet, and the other end of each of the rest first oil ways is provided with an oil outlet communicated with a gap on the other side of the motor shell (1);
a fourth oil path (201) communicated with the gap between the motor shell (1) and the end cover (2) is arranged at the bottom end of the end cover (2);
a third oil path (104) communicated with the other side of the motor shell (1) in a clearance way is arranged at the bottom end of the motor shell (1);
the sum of the diameters of the fourth oil path (201) and the third oil path (104) is smaller than the diameter of the second oil path (103);
the number of the oil grooves (101) is 6-9;
the automobile motor cooling system further includes: an oil pan (16) located at the lower end of the fourth oil path (201) and the third oil path (104), the oil pan (16) being configured to collect cooling oil that leaks from the third oil path (104) and the fourth oil path (201).
2. The automotive motor cooling system according to claim 1, characterized in that a check valve (15) is provided between the oil pump (7) and the second oil passage (103).
3. An automotive electric machine characterized by comprising the automotive electric machine cooling system according to claim 1 or 2.
4. The vehicle motor according to claim 3, characterized in that one end of the rotating shaft (3) is provided with a first bearing (8), the first bearing (8) being located between the motor housing (1) and the rotating shaft (3); the other end of pivot (3) is equipped with second bearing (9), second bearing (9) are located between pivot (3) and end cover (2).
5. An automotive electric machine according to claim 4, characterized in that a bearing housing (10) is provided at one end of the motor housing (1) at the first bearing (8) and a bearing cover (11) is provided at one end of the second bearing (9).
6. An automotive electric machine according to claim 5, characterised in that a first seal (12) is provided between the bearing housing (10) and the shaft (3); a second sealing piece (13) is arranged between the motor shell (1) and the end cover (2); and a third sealing piece (14) is arranged between the motor shell (1) and the stator shell (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009852.1A CN109104029B (en) | 2018-08-30 | 2018-08-30 | Automobile motor cooling system and automobile motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009852.1A CN109104029B (en) | 2018-08-30 | 2018-08-30 | Automobile motor cooling system and automobile motor |
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| Publication Number | Publication Date |
|---|---|
| CN109104029A CN109104029A (en) | 2018-12-28 |
| CN109104029B true CN109104029B (en) | 2021-02-02 |
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ID=64864494
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811009852.1A Active CN109104029B (en) | 2018-08-30 | 2018-08-30 | Automobile motor cooling system and automobile motor |
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| Country | Link |
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| CN (1) | CN109104029B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3132808A1 (en) * | 2022-02-16 | 2023-08-18 | Valeo Equipements Electriques Moteur | Carter rotating electric machine and rotating electric machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1836361A (en) * | 2003-07-31 | 2006-09-20 | 西门子公司 | Electric machine with coolant guiding channel and corresponding cooling method |
| CN103151879A (en) * | 2013-04-03 | 2013-06-12 | 天津市松正电动汽车技术股份有限公司 | Liquid-cooled motor |
| CN106208439A (en) * | 2014-10-29 | 2016-12-07 | 三菱电机株式会社 | The stator core cooling structure of electric rotating machine and manufacture method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0819219A (en) * | 1994-06-29 | 1996-01-19 | Fuji Electric Co Ltd | Refrigerant cooled rotating electric machine |
| CN201355790Y (en) * | 2008-12-30 | 2009-12-02 | 上海大郡自动化系统工程有限公司 | Oil-cooled motor |
-
2018
- 2018-08-30 CN CN201811009852.1A patent/CN109104029B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1836361A (en) * | 2003-07-31 | 2006-09-20 | 西门子公司 | Electric machine with coolant guiding channel and corresponding cooling method |
| CN103151879A (en) * | 2013-04-03 | 2013-06-12 | 天津市松正电动汽车技术股份有限公司 | Liquid-cooled motor |
| CN106208439A (en) * | 2014-10-29 | 2016-12-07 | 三菱电机株式会社 | The stator core cooling structure of electric rotating machine and manufacture method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3132808A1 (en) * | 2022-02-16 | 2023-08-18 | Valeo Equipements Electriques Moteur | Carter rotating electric machine and rotating electric machine |
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| CN109104029A (en) | 2018-12-28 |
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