CN109038951A - The cooling structure of new-energy automobile electrical drive power assembly - Google Patents
The cooling structure of new-energy automobile electrical drive power assembly Download PDFInfo
- Publication number
- CN109038951A CN109038951A CN201810820581.1A CN201810820581A CN109038951A CN 109038951 A CN109038951 A CN 109038951A CN 201810820581 A CN201810820581 A CN 201810820581A CN 109038951 A CN109038951 A CN 109038951A
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- China
- Prior art keywords
- oil circuit
- driving motor
- shaft
- oil
- power assembly
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of cooling structures of new-energy automobile electrical drive power assembly, this structure driving motor shell is connect with reducer shell end face, shaft is equipped in driving motor shell, rotor core, magnetic isolation plate, stator core and stator coil, magnet steel is along the circumferential direction equipped in rotor core, input shaft and reducing gear train are equipped in reducing gearbox body, oil baffle, which is set to above reducing gearbox intracoelomic cavity, constitutes shoe cream room, shaft is equipped with the inner cavity being connected to input shaft, reducing gearbox body sidewall is equipped with the first oil circuit of connection shoe cream room and input shaft inner cavity, shaft intracavity sidewall is equipped with the oil outlet of connection inner cavity, it is equipped with the second oil circuit along its length in rotor core and middle part is connected to oil outlet, the 4th oil circuit is equipped between magnetic isolation plate and rotor core end face, driving motor housing bottom surface is equipped with the third oil circuit of connection reducing gearbox intracoelomic cavity.This structural improvement driving motor heat dissipation effect improves driving motor power density, reduces equipment cost, it is ensured that power assembly operational reliability.
Description
Technical field
The present invention relates to a kind of cooling structures of new-energy automobile electrical drive power assembly.
Background technique
At present the developing goal of new-energy automobile driving motor be high power density, it is highly integrated, i.e., driving motor is in phase
Bigger power, and motor and retarder integration-in-one structure are exported under homogenous quantities.Driving motor heat dissipation performance directly affects
Its output performance and service life, and at present driving motor generally using air-cooled, water cooling, directly oil is cold etc., and modes are implemented to cool down,
But air-cooled, water-cooling low efficiency, and use the directly cold mode of oil that need to configure the components such as oil pump, heat exchanger, lead to cost
Height, it is difficult in maintenance, therefore raising power density has been cooled by the integrated electrical drive power assembly of driving motor and retarder
Bottleneck.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of cooling structures of new-energy automobile electrical drive power assembly, originally
The defect that structure overcomes conventional ADS driving motor cooling, is effectively improved driving motor heat dissipation effect, the power for improving driving motor is close
Degree, and reduce equipment cost, it is ensured that power assembly reliability of operation.
In order to solve the above technical problems, the cooling structure of new-energy automobile electrical drive power assembly of the present invention includes end face connection
Driving motor shell and reducer shell, in the driving motor shell equipped with shaft, set on the shaft rotor core,
Magnetic isolation plate set on the rotor core end face, the stator core and stator coil set on driving motor inner walls, described turn
It is along the circumferential direction equipped with magnet steel in sub- iron core, input shaft is equipped in the reducing gearbox body, the input shaft is equipped with reducing gear
Train, this structure further include oil baffle, and the oil baffle, which is set to above the reducing gearbox intracoelomic cavity, constitutes shoe cream room, and described turn
Axis and input axis connection are simultaneously located at same axis, and the shaft and input shaft edge are axially arranged with the inner cavity being connected to, the retarder
Housing sidewall is equipped with the first oil circuit for being connected to the shoe cream room and input shaft inner cavity, and the shaft intracavity sidewall is equipped with connection inner cavity
Oil outlet, the second oil circuit is equipped in the rotor core along its length, be connected in the middle part of second oil circuit oil outlet,
Both ends are located at the magnetic isolation plate position, and the 4th oil circuit, the 4th oil circuit are equipped between the magnetic isolation plate and rotor core end face
It is connected to second oil circuit and exports the periphery for being set to the magnetic isolation plate, the driving motor housing bottom surface is equipped with connection institute
State the third oil circuit of reducing gearbox intracoelomic cavity.
Further, second oil circuit is including longitudinal oil circuit and lateral oil circuit and between the rotor core circumferencial direction
It is arranged every 90 degree, the longitudinal oil routing rotor punching opens Y shape hole and closed assembly is constituted, and the Y shape hole is on one side perpendicular to described turn
Sub- iron core axis is simultaneously connected to the oil outlet, and the transverse direction oil circuit is made of rotor punching aperture and closed assembly, position of opening position
In the Y shape hole another two side end portion and within the scope of the radially inner side triangle of magnet steel arrangement.
Further, the cross sectional shape of the lateral oil circuit is round or oval.Further, in the shaft and input shaft
Chamber shape connects the small nose circle of the shaft inner cavity for the big nose circle of taper and the input shaft inner cavity.
Further, the shaft and input shaft are integral hollow axis and its cavity shape is unitary tapered.
Further, one side wall and/or another side wall of first oil circuit set on the reducer shell.
Further, this structure further includes cooling water channel, and the cooling water channel is set in the driving motor shell.
Further, the third oil circuit is arranged in driving motor housing cavity surface or the stator core outer circle
Face or driving motor housing cavity surface and stator core periphery fluting are combined into third oil circuit.
Further, the third oil circuit is between driving motor housing cavity surface or the stator core periphery
Every, be arranged in parallel with multichannel and be respectively communicated with the reducing gearbox intracoelomic cavity.
Further, the magnetic isolation plate is equipped with the 4th oil circuit, and the 4th oil circuit is included in magnetic isolation plate medial surface and opens along axial direction
If counterbore and the arc groove that is connected to the counterbore two sides, the second oil circuit port described in the counterbore face, the arc groove two
End opening is located at the magnetic isolation plate periphery, the 4th oil circuit along the magnetic isolation plate circumferencial direction uniformly at intervals.Due to this hair
The cooling structure of bright new-energy automobile electrical drive power assembly use above-mentioned technical proposal, i.e., in this structure driving motor shell with
The connection of reducer shell end face, driving motor shell is interior to be equipped with shaft, rotor core, magnetic isolation plate, stator core and stator coil,
It is along the circumferential direction equipped with magnet steel in rotor core, input shaft and reducing gear train are equipped in reducing gearbox body, oil baffle, which is set to, to be subtracted
Shoe cream room is constituted above fast device housing cavity, shaft is equipped with the inner cavity being connected to input shaft, and reducing gearbox body sidewall is equipped with connection
First oil circuit of shoe cream room and input shaft inner cavity, shaft intracavity sidewall are equipped with the oil outlet of connection inner cavity, and rotor core is interior along length
It spends direction and is equipped with the second oil circuit, connection oil outlet, both ends are located at magnetic isolation plate position, magnetic isolation plate and rotor core in the middle part of the second oil circuit
The 4th oil circuit is equipped between end face, driving motor housing bottom surface is equipped with the third oil circuit of connection reducing gearbox intracoelomic cavity.This structure
The defect for overcoming conventional ADS driving motor cooling, is effectively improved driving motor heat dissipation effect, improves the power density of driving motor, and
Reduce equipment cost, it is ensured that power assembly reliability of operation.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
Fig. 1 is the cooling structure schematic diagram of new-energy automobile electrical drive power assembly of the present invention；
Fig. 2 is shaft and input shaft connection schematic diagram in this structure；
Fig. 3 be in Fig. 1 A-A to diagrammatic cross-section.
Fig. 4 is magnetic isolation plate schematic diagram in this structure.
Specific embodiment
Embodiment is as shown in Figure 1, Figure 2 and Figure 3, and the cooling structure of new-energy automobile electrical drive power assembly of the present invention includes end
The driving motor shell 1 and reducer shell 2 of face connection, the driving motor shell 1 is interior to be equipped with shaft 11, is set to the shaft
11 rotor core 12, set on the magnetic isolation plate 13 of 12 end face of rotor core, set on the stator iron of 1 inner wall of driving motor shell
Core 14 and stator coil 15 are along the circumferential direction equipped with magnet steel 16 in the rotor core 12, are equipped in the reducer shell 2 defeated
Enter axis 21, the input shaft 21 is equipped with reducing gear train 22, this structure further includes oil baffle 3, and the oil baffle 3 is set to described
Constituting shoe cream room 31 above 2 inner cavity of reducer shell, the shaft 11 connect with input shaft 21 and positioned at same axis, and described turn
For axis 11 with input shaft 21 along the inner cavity 23 being connected to is axially arranged with, 2 side wall of reducer shell, which is equipped with, is connected to the shoe cream room 31
With the first oil circuit 4 of 21 inner cavity 23 of input shaft, 11 inner cavity of shaft, 23 side wall is equipped with the oil outlet 17 of connection inner cavity 23, described
The second oil circuit 5 is equipped in rotor core 12 along its length, the oil outlet 17, both ends position are connected in the middle part of second oil circuit 5
The 4th oil circuit 8, the 4th oil circuit are equipped between 13 position of magnetic isolation plate, 12 end face of the magnetic isolation plate 13 and rotor core
8 connections, second oil circuit 5 and outlet are set to the periphery of the magnetic isolation plate 13, and 1 bottom surface of driving motor shell is equipped with
It is connected to the third oil circuit 6 of 2 inner cavity of reducer shell.
Preferably, second oil circuit 5 includes longitudinal oil circuit 51 with lateral oil circuit 52 and along the rotor core 12 circle
90 degree of circumferential direction interval arrangement, the longitudinal direction oil circuit 51 opens Y shape hole by rotor punching and closed assembly is constituted, and the Y shape hole is hung down on one side
Directly in 12 axis of rotor core and it is connected to the oil outlet 17, the transverse direction oil circuit 52 is by rotor punching aperture and closed assembly structure
At position of opening is located at the Y shape hole another two side end portion and close to the radially inner side triangle range of the magnet steel 16 arrangement
It is interior.Second oil circuit is formed using longitudinal oil circuit and lateral oil channel structures by rotor punching aperture, and the reality of rotor core is facilitated
Production reduces cost of manufacture, and implements effectively cooling to rotor core and built-in magnet steel, improves the cooling effect of rotor.
Preferably, the cross sectional shape of the lateral oil circuit 52 is round or oval.
Preferably, the shaft 11 and 21 cavity shape of input shaft are the big nose circle of taper and 21 inner cavity of the input shaft
Connect the small nose circle of 11 inner cavity of shaft.Conical internal cavity helps to guide cutting oil to rotor core, promotes cooling
The utilization efficiency of lubricating oil.
Preferably, the shaft 11 and input shaft 21 are integral hollow axis and its cavity shape is unitary tapered.
Preferably, one side wall and/or another side wall of first oil circuit 4 set on the reducer shell 2.First oil circuit
It can also be replaced using the oil pipe being built in reducing gearbox body, the cost of manufacture of reducer shell can be reduced.
Preferably, this structure further includes spiral shape cooling water channel 7, and the cooling water channel 7 is set to the driving motor shell 1
It is interior.Cooling water channel connects external water-cooling system, further increases the cooling effect of driving motor.
Preferably, the third oil circuit 6 is arranged in 1 surface of internal cavity of driving motor shell or the stator core 14
Periphery or 1 surface of internal cavity of driving motor shell and 14 periphery of stator core fluting are combined into third oil circuit.Third oil
Road can flexible setting, it is only necessary to which the intracorporal cutting oil of driving motor shell is introduced reducer shell.
Preferably, the third oil circuit 6 is along 14 periphery of 1 surface of internal cavity of driving motor shell or the stator core
It is spaced, is arranged in parallel with multichannel and is respectively communicated with 2 inner cavity of reducer shell.Multichannel third oil circuit can will lodge in driving electricity
The intracorporal cutting oil of casing introduces reducer shell in time, it is ensured that cutting oil is in reducer shell and driving motor shell
Circulation between body.
Preferably, as shown in Figure 1 and Figure 4, the 4th oil circuit 8 includes sinking in 13 medial surface of magnetic isolation plate along what axial direction opened up
Hole 81 and the arc groove 82 for being connected to 81 two sides of counterbore, 5 port of the second oil circuit described in 81 face of counterbore, the arc groove
82 both ends opens are located at 13 periphery of magnetic isolation plate, the 4th oil circuit 8 along 13 circumferencial direction of magnetic isolation plate uniformly at intervals.
In driving motor, magnetic isolation plate medial surface is bonded with rotor core end face, thus rotor core end face formed by
The 4th oil circuit that counterbore and arc groove are constituted, the cutting oil of the second oil circuit outflow flow into counterbore and throw away through arc groove,
Middle arc groove is close to the magnet steel of rotor core end face, and emphasis cools down the magnet steel for being located at rotor core end face.Its entire mistake
Journey is the cutting oil of shaft inner cavity under rotor centrifugal force effect, is got rid of by oil outlet, the second oil circuit, the 4th oil circuit to fixed
The oil droplet of subcoil end, stator coil end drops down onto electric machine casing, is back to reducer shell through third oil circuit.
In the electrical drive power assembly operation that driving motor and retarder are constituted, driving motor shaft drives retarder input
Axis rotation, input shaft drive reducing gear train operating, and the cutting oil of reducer shell bottom is got rid of in reducing gear train operating
To shoe cream room；Cutting oil in shoe cream room flow to reducer input shaft and machine shaft through the first oil circuit under the effect of gravity
Hollow cavity, and under the action of rotor core centrifugal force through shaft oil outlet flow into the second oil circuit, cutting oil pass through
It is got rid of after second oil circuit, the 4th oil circuit to stator coil end, the lubricating oil on stator coil end finally drips and flows into
Three oil circuits finally flow to reducer shell bottom through third oil circuit, to form circulating for complete cutting oil.Phase
Between, cutting oil is implemented to cool down to rotor core, stator core, stator coil end, end magnet steel and magnetic isolation plate, thus
It is effectively improved the heat dissipation effect of driving motor, improves the power density of driving motor.
The circulation of cutting oil provides power without oil pump in this structure, real using the rotation of driving motor and retarder
The circulation of existing oil reduces costs, and high reliablity compared to the type of cooling for using oil pump feed at present.
Claims (10)
1. a kind of cooling structure of new-energy automobile electrical drive power assembly, driving motor shell and retarder including end face connection
Shell, be equipped in the driving motor shell shaft, set on the rotor core of the shaft, set on the rotor core end face
Magnetic isolation plate, stator core and stator coil set on driving motor inner walls are along the circumferential direction equipped in the rotor core
Magnet steel, the reducing gearbox body is interior to be equipped with input shaft, and the input shaft is equipped with reducing gear train, it is characterised in that: this structure
It further include oil baffle, the oil baffle, which is set to above the reducing gearbox intracoelomic cavity, constitutes shoe cream room, the shaft and input shaft
Same axis, the shaft and input shaft are connected and are located at along the inner cavity being connected to is axially arranged with, the reducing gearbox body sidewall is set
There is the first oil circuit for being connected to the shoe cream room and input shaft inner cavity, the shaft intracavity sidewall is equipped with the oil outlet of connection inner cavity,
The second oil circuit is equipped in the rotor core along its length, is connected to the oil outlet in the middle part of second oil circuit, both ends are located at
The magnetic isolation plate position is equipped with the 4th oil circuit, described in the 4th oil communication between the magnetic isolation plate and rotor core end face
Second oil circuit and outlet are set to the periphery of the magnetic isolation plate, and the driving motor housing bottom surface, which is equipped with, is connected to the retarder
The third oil circuit of housing cavity.
2. the cooling structure of new-energy automobile electrical drive power assembly according to claim 1, it is characterised in that: described second
Oil circuit includes longitudinal oil circuit with lateral oil circuit and along 90 degree of rotor core circumferencial direction interval arrangement, the longitudinal direction oil circuit
Y shape hole is opened by rotor punching and closed assembly is constituted, the Y shape hole perpendicular to the rotor core axis and is connected to described fuel-displaced on one side
Hole, the transverse direction oil circuit are made of rotor punching aperture and closed assembly, and position of opening is located at the Y shape hole another two side end portion and leans on
Within the scope of the radially inner side triangle of the nearly magnet steel arrangement.
3. the cooling structure of new-energy automobile electrical drive power assembly according to claim 2, it is characterised in that: the transverse direction
The cross sectional shape of oil circuit is round or oval.
4. the cooling structure of new-energy automobile electrical drive power assembly according to claim 1,2 or 3, it is characterised in that: institute
State the roundlet that shaft connects the shaft inner cavity with input shaft cavity shape for the big nose circle of taper and the input shaft inner cavity
End.
5. the cooling structure of new-energy automobile electrical drive power assembly according to claim 4, it is characterised in that: the shaft
With input shaft be integral hollow axis and its cavity shape is unitary tapered.
6. the cooling structure of new-energy automobile electrical drive power assembly according to claim 5, it is characterised in that: described first
One side wall and/or another side wall of the oil circuit set on the reducer shell.
7. the cooling structure of new-energy automobile electrical drive power assembly according to claim 5 or 6, it is characterised in that: this knot
Structure further includes cooling water channel, and the cooling water channel is set in the driving motor shell.
8. the cooling structure of new-energy automobile electrical drive power assembly according to claim 7, it is characterised in that: the third
Oil circuit is arranged in driving motor housing cavity surface or the stator core periphery or the driving motor shell
Chamber surface and stator core periphery fluting are combined into third oil circuit.
9. the cooling structure of new-energy automobile electrical drive power assembly according to claim 8, it is characterised in that: the third
Oil circuit along driving motor housing cavity surface or the stator core outer circle face interval, be arranged in parallel with multichannel and connect respectively
Lead to the reducing gearbox intracoelomic cavity.
10. the cooling structure of new-energy automobile electrical drive power assembly according to claim 8 or claim 9, it is characterised in that: described
4th oil circuit includes the counterbore opened up in magnetic isolation plate medial surface along axial direction and the arc groove for being connected to the counterbore two sides, the counterbore
Second oil circuit port described in face, the arc groove both ends open are located at the magnetic isolation plate periphery, and the 4th oil circuit is along institute
State magnetic isolation plate circumferencial direction uniformly at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810820581.1A CN109038951B (en) | 2018-07-24 | 2018-07-24 | Cooling structure of new energy automobile electric drive assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810820581.1A CN109038951B (en) | 2018-07-24 | 2018-07-24 | Cooling structure of new energy automobile electric drive assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109038951A true CN109038951A (en) | 2018-12-18 |
| CN109038951B CN109038951B (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810820581.1A Active CN109038951B (en) | 2018-07-24 | 2018-07-24 | Cooling structure of new energy automobile electric drive assembly |
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| CN (1) | CN109038951B (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713821A (en) * | 2019-03-08 | 2019-05-03 | 哈尔滨理工大学 | A kind of rotor liquid cooling system structure suitable for inner rotor motor |
| CN110601450A (en) * | 2019-09-03 | 2019-12-20 | 精进电动科技股份有限公司 | Oil-water double-cooling electric drive assembly and new energy automobile |
| CN110808659A (en) * | 2019-11-11 | 2020-02-18 | 宜宾凯翼汽车有限公司 | Electric drive assembly |
| WO2020134422A1 (en) * | 2018-12-25 | 2020-07-02 | 珠海格力电器股份有限公司 | Motor rotor, compressor, refrigerant circulation system, and cooling device |
| CN111532118A (en) * | 2020-04-14 | 2020-08-14 | 铜车马动力科技(宁波)有限公司 | New energy automobile power assembly |
| CN111969791A (en) * | 2020-08-18 | 2020-11-20 | 中国第一汽车股份有限公司 | Oil-water mixed cooling motor system and vehicle |
| CN112202259A (en) * | 2020-09-29 | 2021-01-08 | 上海电气集团股份有限公司 | Motor rotor cooling system and electric drive assembly |
| WO2021082360A1 (en) * | 2019-10-29 | 2021-05-06 | 宁波菲仕运动控制技术有限公司 | Electric motor rotor cooling system of electric drive assembly |
| CN112769268A (en) * | 2020-12-30 | 2021-05-07 | 华为技术有限公司 | Power transmission assembly and power assembly |
| CN113036968A (en) * | 2021-03-16 | 2021-06-25 | 东南大学 | Rotor internal oil circuit cooling structure |
| CN113162300A (en) * | 2021-04-28 | 2021-07-23 | 中国第一汽车股份有限公司 | Motor cooling system, motor and vehicle |
| CN113212134A (en) * | 2021-06-18 | 2021-08-06 | 中国第一汽车股份有限公司 | Electric drive assembly and vehicle |
| CN113507178A (en) * | 2021-06-01 | 2021-10-15 | 恒大新能源汽车投资控股集团有限公司 | Motor assembly and vehicle |
| CN113833768A (en) * | 2021-09-26 | 2021-12-24 | 珠海格力电器股份有限公司 | Bearing lubricating structure and motor |
| CN113905917A (en) * | 2020-05-27 | 2022-01-07 | 华为技术有限公司 | Power assembly and electric vehicle |
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| CN114142638A (en) * | 2021-12-14 | 2022-03-04 | 南京邦奇自动变速箱有限公司 | Integrated cooling and lubricating system for electric drive assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020134422A1 (en) * | 2018-12-25 | 2020-07-02 | 珠海格力电器股份有限公司 | Motor rotor, compressor, refrigerant circulation system, and cooling device |
| CN109713821A (en) * | 2019-03-08 | 2019-05-03 | 哈尔滨理工大学 | A kind of rotor liquid cooling system structure suitable for inner rotor motor |
| DE102020207841B4 (en) | 2019-06-28 | 2023-11-30 | Nidec Corporation | Motor unit |
| WO2021042465A1 (en) * | 2019-09-03 | 2021-03-11 | 精进电动科技股份有限公司 | Oil-water double-cooling electric drive assembly, and new energy automobile |
| CN110601450A (en) * | 2019-09-03 | 2019-12-20 | 精进电动科技股份有限公司 | Oil-water double-cooling electric drive assembly and new energy automobile |
| WO2021082360A1 (en) * | 2019-10-29 | 2021-05-06 | 宁波菲仕运动控制技术有限公司 | Electric motor rotor cooling system of electric drive assembly |
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| CN111532118A (en) * | 2020-04-14 | 2020-08-14 | 铜车马动力科技(宁波)有限公司 | New energy automobile power assembly |
| CN113905917A (en) * | 2020-05-27 | 2022-01-07 | 华为技术有限公司 | Power assembly and electric vehicle |
| CN111969791A (en) * | 2020-08-18 | 2020-11-20 | 中国第一汽车股份有限公司 | Oil-water mixed cooling motor system and vehicle |
| CN111969791B (en) * | 2020-08-18 | 2021-12-03 | 中国第一汽车股份有限公司 | Oil-water mixed cooling motor system and vehicle |
| WO2022037263A1 (en) * | 2020-08-18 | 2022-02-24 | 中国第一汽车股份有限公司 | Oil-water combined cooling electric motor system, and vehicle |
| CN112202259A (en) * | 2020-09-29 | 2021-01-08 | 上海电气集团股份有限公司 | Motor rotor cooling system and electric drive assembly |
| CN112202259B (en) * | 2020-09-29 | 2021-06-11 | 上海电气集团股份有限公司 | Motor rotor cooling system and electric drive assembly |
| CN112769268A (en) * | 2020-12-30 | 2021-05-07 | 华为技术有限公司 | Power transmission assembly and power assembly |
| CN113939980B (en) * | 2021-02-26 | 2024-04-09 | 华为数字能源技术有限公司 | Power assembly and electric vehicle |
| CN113939980A (en) * | 2021-02-26 | 2022-01-14 | 华为数字能源技术有限公司 | Power assembly and electric vehicle |
| EP4283843A4 (en) * | 2021-02-26 | 2024-04-03 | Huawei Digital Power Tech Co Ltd | Powertrain and electric vehicle |
| WO2022178868A1 (en) * | 2021-02-26 | 2022-09-01 | 华为数字能源技术有限公司 | Powertrain and electric vehicle |
| CN113036968A (en) * | 2021-03-16 | 2021-06-25 | 东南大学 | Rotor internal oil circuit cooling structure |
| CN113162300A (en) * | 2021-04-28 | 2021-07-23 | 中国第一汽车股份有限公司 | Motor cooling system, motor and vehicle |
| CN113507178A (en) * | 2021-06-01 | 2021-10-15 | 恒大新能源汽车投资控股集团有限公司 | Motor assembly and vehicle |
| CN113212134A (en) * | 2021-06-18 | 2021-08-06 | 中国第一汽车股份有限公司 | Electric drive assembly and vehicle |
| CN113212134B (en) * | 2021-06-18 | 2023-07-04 | 中国第一汽车股份有限公司 | Electric drive assembly and vehicle |
| WO2023273193A1 (en) * | 2021-06-30 | 2023-01-05 | 青岛海尔智能技术研发有限公司 | Compressor and electric motor thereof |
| CN113833768A (en) * | 2021-09-26 | 2021-12-24 | 珠海格力电器股份有限公司 | Bearing lubricating structure and motor |
| CN114142638B (en) * | 2021-12-14 | 2023-10-27 | 南京邦奇自动变速箱有限公司 | Integrated cooling and lubricating system for electric drive assembly |
| CN114142638A (en) * | 2021-12-14 | 2022-03-04 | 南京邦奇自动变速箱有限公司 | Integrated cooling and lubricating system for electric drive assembly |
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