CN212231279U - Cooling component, motor end cover, motor and new energy automobile - Google Patents
Cooling component, motor end cover, motor and new energy automobile Download PDFInfo
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- CN212231279U CN212231279U CN202020591974.2U CN202020591974U CN212231279U CN 212231279 U CN212231279 U CN 212231279U CN 202020591974 U CN202020591974 U CN 202020591974U CN 212231279 U CN212231279 U CN 212231279U
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- cooling
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- oil
- oil pipe
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- 238000001816 cooling Methods 0.000 title claims abstract description 230
- 238000004804 winding Methods 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 239000002826 coolant Substances 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model relates to a motor cooling technical field especially relates to a cooling module, motor end cover, motor and new energy automobile, a cooling module, including stator cooling piece, rotor cooling piece and the pipe connection spare that is used for transmitting the coolant oil, the stator cooling piece with the rotor cooling piece respectively with the pipe connection intercommunication, it has the stator oil-out that is used for spraying the cooling to the winding end of stator to open on the stator cooling piece, open on the rotor cooling piece and be used for spraying refrigerated rotor oil-out to rotor inside, owing to be provided with cooling module, effectual improvement is to the cooling effect of motor, the effectual work efficiency and the performance of having guaranteed the motor.
Description
Technical Field
The utility model relates to a motor cooling technology field especially relates to a cooling module, motor end cover, motor and new energy automobile.
Background
The motor of the electric automobile generates a large amount of heat in the low-speed and large-torque working process, so that the temperature of the motor is increased, and the performance and the efficiency of the motor are seriously influenced. For a high-speed passenger vehicle motor, in a very limited appearance space, the performance of realizing high rotating speed and high power is required, a new challenge is provided for the heat dissipation of the motor, and the national requirement on the power density of the motor is higher and higher. The improvement of power density makes the motor volume constantly reduce, also more and more high to the heat-sinking capability requirement of motor simultaneously.
In the prior art, most of stator cooling adopts a structure that a cooling oil way is arranged on a shell to carry out radial spray cooling on the end part of a winding. The cooling mode has some defects, and because the cooling oil is sprayed from top to bottom in the structure, so that the cooling oil absorbs a large amount of heat when flowing to the lower half part, the cooling effect on the stator winding of the lower half part is poor, and the cooling is not uniform; meanwhile, most of the rotor oil cooling is in a mode of throwing oil from a rotor hollow shaft, but the cooling oil is not directly contacted with a rotor iron core, so that the rotor can only be cooled in a heat conduction mode, and the cooling effect is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a cooling assembly to solve the above-mentioned problems in the prior art.
An embodiment of the utility model provides a cooling assembly, including stator cooling piece, rotor cooling piece and the pipe connection spare that is used for transmitting the cooling oil, stator cooling piece with rotor cooling piece respectively with the pipe connection intercommunication, it has the stator oil-out that is used for spraying the cooling to the winding end of stator to open on the stator cooling piece, it has the rotor oil-out that is used for spraying the cooling to rotor inside to open on the rotor cooling piece.
Furthermore, the pipe connection spare advances oil pipe including first advancing oil pipe and second, first advance oil pipe with the second advances oil pipe and communicates each other, the one end that first advances oil pipe is provided with the coolant oil import, and the other end is provided with the stator oil through hole, the second advances oil pipe and keeps away from the one end that first advances oil pipe is provided with the rotor oil through hole.
Furthermore, the cooling oil inlet, the stator oil through hole and the rotor oil through hole are all provided with sealing grooves for mounting sealing rings.
Further, the rotor cooling piece is including rotor cooling oil pipe, rotor installed part, rotor cooling oil pipe import, the rotor installed part is fixed in on the rotor cooling oil pipe, rotor cooling oil pipe import is seted up in on the rotor cooling oil pipe, rotor cooling oil pipe import with the rotor oil through hole intercommunication.
Furthermore, the stator cooling part comprises a stator cooling oil pipe, a stator mounting part and a stator cooling oil pipe inlet, wherein the stator mounting part is fixed on the stator cooling oil pipe, the stator cooling oil pipe inlet is formed in the stator cooling oil pipe, and the stator cooling oil pipe inlet is communicated with the stator oil through hole.
The embodiment also provides a motor end cover, which comprises an end cover component and the cooling component, wherein the cooling component is fixed on the end cover component.
Furthermore, the end cover assembly comprises an end cover body and an oil inlet pipeline communicated with an external oil pump, an end cover oil inlet is formed in one end of the oil inlet pipeline, a pipeline oil inlet communicated with the pipeline connecting piece is formed in the other end of the oil inlet pipeline, the stator cooling piece is fixed on the end cover body, and the rotor cooling piece is fixed on the end cover body.
Furthermore, a first fixing groove used for limiting the stator cooling piece and a second fixing groove used for limiting the rotor cooling piece are formed in the end cover body.
The embodiment of the utility model provides a still provide a motor, including stator and rotor, still including foretell motor end cover.
Furthermore, the central line of the stator cooling piece and the central line of the axial section of the end part of the stator winding are positioned on the same straight line, and cooling oil in the stator cooling piece acts on the axial end face of the stator through the stator oil outlet.
Furthermore, the rotor is axially formed with lightening holes, the center line of the rotor cooling part and the center line of the axial section of the lightening holes are positioned on the same straight line, and the rotor oil outlet is communicated with the lightening holes.
The embodiment also provides a new energy automobile, which comprises the motor.
Compared with the prior art, the utility model has the advantages that:
(1) because the cooling device is arranged, the cooling device comprises the stator cooling part, the rotor cooling part and the pipeline connecting part for transmitting cooling oil, the stator cooling part and the rotor cooling part are both communicated with the pipeline connecting part, the pipeline connecting part is used for transmitting the cooling oil, the cooling device can directly cool the winding end part of the stator through the stator oil outlet which is opened on the stator cooling part and is used for spraying and cooling the winding end part of the stator, the problem that the lower half stator winding has poor cooling effect due to radial spraying on the winding end part of the stator in the prior art is effectively solved, uneven cooling is avoided, and meanwhile, the rotor oil outlet for spraying and cooling the inside of the rotor can be opened on the rotor cooling part, so that the cooling oil can directly cool the inside of the rotor through the rotor oil outlet, the cooling oil does not directly contact with the rotor core in the prior art, and the rotor can only be cooled in a heat conduction mode, so that the heat dissipation effect is greatly improved.
(2) Because the cooling oil inlet, the stator oil through hole and the rotor oil through hole are all provided with the sealing grooves for mounting the sealing rings, the leakage at the joint can be prevented.
(3) Because offer the first fixed slot that is used for injecing stator cooling piece on the end cover body to and be used for injecing the second fixed slot of rotor cooling piece, guarantee stator cooling piece and rotor cooling piece when the motor operation, can not take place the skew, influence the cooling effect, improve the reliability of motor.
(4) The rotor is axially formed with lightening holes, the center line of the rotor cooling part and the center line of the axial section of the lightening holes are positioned on the same straight line, the rotor oil outlet is communicated with the lightening holes, cooling oil can be sprayed into the lightening holes through the rotor oil outlet, and the cooling oil is thrown out from two end faces of the lightening holes under the action of centrifugal force, so that not only can the rotor core be cooled, but also the design arrangement of an oil way in the rotor is reduced, the oil way design is simplified, and the resource and the cost are saved.
Drawings
The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.
Fig. 1 is a schematic view of the overall structure of a stator cooling element in embodiment 1 provided by the present invention.
Fig. 2 is a schematic view of the overall structure of the rotor cooling element in embodiment 1 of the present invention.
Fig. 3 is a schematic view of the overall structure of the pipe joint according to embodiment 1 of the present invention.
Fig. 4 is a schematic view of the overall structure of the cooling module according to embodiment 1 of the present invention.
Fig. 5 is a schematic view of the overall structure of the end cap assembly according to embodiment 2 of the present invention.
Fig. 6 is a schematic view of the overall structure of the motor end cover in embodiment 2 provided by the present invention.
Fig. 7 is a schematic structural view of a rotor portion of an electric motor according to embodiment 3 of the present invention.
The figure includes: the structure comprises a stator cooling part 1, a stator oil outlet 11, a stator cooling oil pipe 12, a stator mounting part 13, a stator cooling oil pipe inlet 14, a rotor cooling part 2, a rotor oil outlet 21, a rotor cooling oil pipe 22, a rotor mounting part 23, a rotor cooling oil pipe inlet 24, a pipeline connecting part 3, a first oil inlet pipe 31, a second oil inlet pipe 32, a cooling oil inlet 33, a stator oil through hole 34, a rotor oil through hole 35, a sealing groove 36, a limit baffle 37, an end cover assembly 4, an end cover body 41, an oil inlet pipeline 42, an end cover oil inlet 43, a pipeline oil inlet 44, a first fixing groove 45, a second fixing groove 46, a rotor 5 and a weight reducing hole 51.
Detailed Description
The invention will be further described with reference to the following examples.
Example 1: a cooling assembly.
As shown in fig. 1 to 4, the present embodiment provides a cooling assembly, which includes a stator cooling element 1, a rotor cooling element 2, and a pipe connector 3 for transmitting cooling oil, where the rotor cooling element 2 and the stator cooling element 1 are both arranged in a ring shape; with the mode that the annular cover inlayed, save the arrangement space, stator cooling part 1, rotor cooling part 2 and pipe connection piece 3 are made for the plastics material for cooling module simple process, low in manufacturing cost, simple to operate, and the pipeline inner wall surface smoothness of plastics material is good, effectively reduces the loss of pressure of cooling oil in the pipeline. Stator cooling member 1 with rotor cooling member 2 respectively with the pipe connection intercommunication, stator cooling member is last 1 to open and to have the stator oil-out 11 that is used for spraying the cooling to the winding end of stator, rotor cooling member 2 is last to open and to have the rotor oil-out 21 that is used for spraying the cooling to rotor inside, and is further, stator oil-out 11 is provided with a plurality ofly and evenly distributed on the periphery wall of stator cooling member 1, rotor oil-out 21 is provided with a plurality ofly and evenly distributed on the periphery wall of rotor cooling member 2, wherein, rotor oil-out 21 and the 11 quantity of stator oil-out can be adjusted according to the cooling effect, and when the oil circuit blockked up, can directly change stator cooling member 1, rotor cooling member 2 and pipe connection 3 simultaneously, easy operation, it is with low costs.
In a preferred embodiment, the pipe connector 3 includes a first oil inlet pipe 31 and a second oil inlet pipe 32, the first oil inlet pipe 31 and the second oil inlet pipe 32 are communicated with each other, one end of the first oil inlet pipe 31 is provided with a cooling oil inlet 33, the other end is provided with a stator oil through hole 34, one end of the second oil inlet pipe 32, which is far away from the first oil inlet pipe 31, is provided with a rotor oil through hole 35, and the flow distribution of cooling oil inside the stator cooling element 1 and the rotor cooling element 2 can be adjusted by adjusting the pipe diameters of the first oil inlet pipe 31 and the second oil inlet pipe 32, which is simple in operation and low in cost.
In a preferred embodiment, the cooling oil inlet 33, the stator oil through hole 34 and the rotor oil through hole 35 are all provided with a sealing groove 36 for installing a sealing ring, further, the end parts of the stator oil through hole 34 and the rotor oil through hole 35 are also provided with a limit baffle, and the leakage at the joint can be prevented by installing an O-shaped sealing ring inside the sealing groove 36.
In a preferred embodiment, the rotor cooling element 2 includes a rotor cooling oil pipe 22, a rotor mounting member 23, and a rotor cooling oil pipe inlet 24, the rotor mounting member 23 is fixed on the rotor cooling oil pipe 22, the rotor cooling oil pipe inlet 24 is opened on the rotor cooling oil pipe 22, the rotor cooling oil pipe inlet 24 is communicated with the rotor oil through hole 35, the rotor cooling oil pipe inlet 24 and the rotor oil through hole 35 are fastened and fixed with each other, and the rotor oil outlet 21 is opened on the rotor cooling oil pipe 22 and is communicated with the rotor cooling oil pipe inlet 24.
In a preferred embodiment, the stator cooling element 1 includes a stator cooling oil pipe 12, a stator mounting member 13, and a stator cooling oil pipe inlet 14, the stator mounting member 13 is fixed on the stator cooling oil pipe 12, the stator cooling oil pipe inlet 14 is opened on the stator cooling oil pipe 12, the stator cooling oil pipe inlet 14 is communicated with the stator oil through hole 34, the stator cooling oil pipe inlet 14 and the stator oil through hole 34 are fastened and fixed with each other, and the stator oil outlet 21 is opened on the stator cooling oil pipe 12 and is communicated with the stator cooling oil pipe inlet 14.
The installation method of a cooling module in this embodiment is as follows:
firstly, a stator cooling part 1, a rotor cooling part 2 and a pipeline connecting part 3 are selected, then a rotor cooling oil pipe inlet 24 at one end of a rotor cooling oil pipe 22 and a rotor oil through hole 35 at one end of the pipeline connecting part 3 are mutually buckled and communicated, and then a stator cooling oil pipe inlet 14 at one end of a stator cooling oil pipe 12 and a stator oil through hole 34 at one end of the pipeline connecting part 3 are mutually buckled and communicated, so that a cooling channel is formed among the stator cooling part 1, the rotor cooling part 2 and the pipeline connecting part 3.
Example 2: a motor end cover.
As shown in fig. 5 to 6, the present embodiment provides a motor end cover, which includes an end cover assembly 4 and the cooling assembly described in embodiment 1, where the cooling assembly is fixed on the end cover assembly 4. Further, the end cover assembly 4 includes an end cover body 41 and an oil inlet pipeline 42 communicated with an external oil pump, an end cover oil inlet 43 is formed in one end of the oil inlet pipeline 42, and a pipeline oil inlet 44 communicated with the pipeline connector 3 is formed in the other end of the oil inlet pipeline 42, wherein the end cover oil inlet 43 conveys cooling oil from a main oil path of the external oil pump to the stator cooling part 1 and the rotor cooling part 2, the stator cooling part 1 is fixed on the end cover body 41 through the stator mounting part 13 by screws, and the rotor cooling part 2 is fixed on the end cover body 41 through the rotor mounting part 23 by screws.
In a preferred embodiment, the end cover body 41 is provided with a first fixing groove 45 for limiting the stator cooling element 1 and a second fixing groove 46 for limiting the rotor cooling element 2, the stator cooling oil pipe 22 is fixed on the motor end cover through the rotor mounting element 23 by screws, the stator cooling oil pipe 12 can be fixed through the first fixing groove 45, and the rotor cooling oil pipe 22 is fixed through the second fixing groove 46, so that the cooling oil pipe is prevented from deviating in position during operation and affecting the oil injection effect.
The installation method of the motor end cover in the embodiment comprises the following steps:
firstly, the cooling assembly of embodiment 1 is selected, the stator cooling element 1 and the rotor cooling element 2 are fastened and fixed on the first fixing groove 45 and the second fixing groove 46, then the stator cooling element 1 and the rotor cooling element 2 are firmly installed on the end cover body 41 through the bolt fixing between the bolt and the stator installation part 13 and the bolt and the rotor installation part 23, and then the cooling oil inlet 33 of the pipeline connecting piece 3 is fastened and communicated with the pipeline oil inlet 44 on the oil inlet pipeline 42.
Example 3: an electric machine.
As shown in fig. 7, this embodiment provides a motor, including stator and rotor 5, rotor 5 set with in the stator, still including the motor end cover in embodiment 2, the motor end cover is provided with two, and is fixed in the both ends of motor respectively.
In a preferred embodiment, the center line of the stator cooling element 1 and the axial section center line of the stator winding end part are located on the same straight line, and the cooling oil in the stator cooling element 1 acts on the axial end face of the stator through the stator oil outlet 11. Cooling oil is sprayed to the end part of the stator winding from the oil spray port 12 under the action of pressure of the oil pump to dissipate heat of the stator winding, so that the heat dissipation of the stator winding is more uniform;
in the preferred embodiment, the rotor 5 is formed with a lightening hole 51 along the axial direction, the center line of the rotor cooling part 2 and the axial section center line of the lightening hole 51 are positioned on the same straight line, and the rotor oil outlet 21 is communicated with the lightening hole 51. The cooling oil is sprayed into the weight reducing holes of the rotor core from the oil spray opening 22 under the action of the pressure of the oil pump, the cooling oil is sprayed onto the inner walls of the weight reducing holes under the action of gravity, and is thrown out to two ends of the weight reducing holes through centrifugal force when the rotor rotates at high speed to dissipate heat of the rotor core.
Example 4: a new energy automobile.
The embodiment provides a new energy automobile, which comprises the motor in the embodiment 3; an oil pump is further included, and the oil pump supplies cooling oil to the stator cooling oil pipe 12 of the stator cooling part 1 and the rotor cooling oil pipe 22 of the rotor cooling part 2 through the oil inlet pipeline 42.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (13)
1. A cooling assembly, characterized by: the cooling device comprises a stator cooling part, a rotor cooling part and a pipeline connecting part for transmitting cooling oil, wherein the stator cooling part and the rotor cooling part are respectively communicated with the pipeline connection, a stator oil outlet for spraying and cooling a winding end of a stator is formed in the stator cooling part, and a rotor oil outlet for spraying and cooling the inside of the rotor is formed in the rotor cooling part.
2. A cooling assembly as claimed in claim 1, wherein: the pipeline connecting piece advances oil pipe including first advancing oil pipe and second, first advance oil pipe with the second advances oil pipe and communicates each other, the one end that first advances oil pipe is provided with the coolant oil import, and the other end is provided with the stator oil through hole, the second advances oil pipe and keeps away from first advance oil pipe's one end is provided with the rotor oil through hole.
3. A cooling assembly as claimed in claim 2, wherein: and the cooling oil inlet, the stator oil through hole and the rotor oil through hole are all provided with sealing grooves for mounting sealing rings.
4. A cooling assembly as claimed in claim 2, wherein: the rotor cooling part comprises a rotor cooling oil pipe, a rotor mounting part and a rotor cooling oil pipe inlet, the rotor mounting part is fixed on the rotor cooling oil pipe, the rotor cooling oil pipe inlet is formed in the rotor cooling oil pipe, and the rotor cooling oil pipe inlet is communicated with the rotor oil through hole.
5. A cooling assembly as claimed in claim 2, wherein: the stator cooling part comprises a stator cooling oil pipe, a stator mounting part and a stator cooling oil pipe inlet, wherein the stator mounting part is fixed on the stator cooling oil pipe, the stator cooling oil pipe inlet is formed in the stator cooling oil pipe, and the stator cooling oil pipe inlet is communicated with the stator oil through hole.
6. A cooling assembly as claimed in claim 1, wherein: the rotor cooling part and the stator cooling part are both arranged in an annular shape.
7. A motor end cover is characterized in that: comprising an end cap assembly and a cooling assembly as claimed in any one of claims 1 to 6, said cooling assembly being secured to said end cap assembly.
8. An end cover for an electric machine according to claim 7, wherein: the end cover assembly comprises an end cover body and an oil inlet pipeline communicated with an external oil pump, an end cover oil inlet is formed in one end of the oil inlet pipeline, a pipeline oil inlet communicated with the pipeline connecting piece is formed in the other end of the oil inlet pipeline, the stator cooling piece is fixed on the end cover body, and the rotor cooling piece is fixed on the end cover body.
9. An end cover for an electric machine according to claim 7, wherein: the end cover body is provided with a first fixing groove used for limiting the stator cooling piece and a second fixing groove used for limiting the rotor cooling piece.
10. The utility model provides a motor, including stator and rotor which characterized in that: a motor end cap according to any of claims 7-9.
11. An electrical machine as claimed in claim 10, wherein: the center line of the stator cooling part and the axial section center line of the stator winding end part are positioned on the same straight line, and cooling oil in the stator cooling part acts on the axial end face of the stator through the stator oil outlet.
12. An electrical machine as claimed in claim 10, wherein: the rotor is provided with lightening holes in an axial forming mode, the center line of the rotor cooling part and the center line of the axial section of each lightening hole are located on the same straight line, and the rotor oil outlet is communicated with the lightening holes.
13. The utility model provides a new energy automobile which characterized in that: comprising an electrical machine as claimed in any of claims 10-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020591974.2U CN212231279U (en) | 2020-04-20 | 2020-04-20 | Cooling component, motor end cover, motor and new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020591974.2U CN212231279U (en) | 2020-04-20 | 2020-04-20 | Cooling component, motor end cover, motor and new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212231279U true CN212231279U (en) | 2020-12-25 |
Family
ID=73906677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020591974.2U Active CN212231279U (en) | 2020-04-20 | 2020-04-20 | Cooling component, motor end cover, motor and new energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212231279U (en) |
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2020
- 2020-04-20 CN CN202020591974.2U patent/CN212231279U/en active Active
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