CN114337063A - Electric drive system and automobile - Google Patents
Electric drive system and automobile Download PDFInfo
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- CN114337063A CN114337063A CN202111657285.2A CN202111657285A CN114337063A CN 114337063 A CN114337063 A CN 114337063A CN 202111657285 A CN202111657285 A CN 202111657285A CN 114337063 A CN114337063 A CN 114337063A
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- motor
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- cooling water
- water channel
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- 239000000498 cooling water Substances 0.000 claims abstract description 114
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000000110 cooling liquid Substances 0.000 abstract description 15
- 230000004323 axial length Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 13
- 239000007788 liquid Substances 0.000 description 12
- 230000017525 heat dissipation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012208 gear oil Substances 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention relates to the technical field of new energy automobiles, and particularly discloses an electric drive system and an automobile. The inverter cooling water channel of the electric drive system provided by the invention cools one part of the inverter assembly and the motor assembly in parallel and then cools the other part of the motor assembly in series, so that the whole cooling water channel of the electric drive system is shortened, and the flowing resistance of cooling liquid is reduced. The motor assembly and the inverter assembly are integrated in the radial direction, share the cooling water channel, so that the overall height of the electric drive system in the radial direction is reduced, and the motor assembly and the reducer assembly are integrated in the axial direction, so that the axial length of the electric drive system is reduced; the motor assembly and the inverter assembly share the cooling water channel, so that a cooling water channel of an electric drive system is shortened, the use of fastening parts, sealing parts and the like for connecting the cooling water channel of the inverter and the cooling water channel of the motor is reduced, and the risk of leakage of cooling liquid is reduced; in addition, the cooling water channels of the electric drive system also simultaneously cool the speed reducer assembly.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to an electric drive system and an automobile.
Background
Along with the gradual development and the maturity of new energy automobile products, the space in the automobile is compacter and compacter, and motor control system is as the important driving system of new energy automobile, and is more and more demanding to lightweight, miniaturization, integration and this reduction. Although the motor, the electric control and the speed reducer mostly adopt a three-in-one or more-in-one driving system at present, the motor, the controller and the speed reducer are generally mutually independent assemblies, and independent shells are adopted for protection and installation, and the cooling systems of the motor, the controller and the speed reducer are independently designed, the motor and the controller are usually connected in a flexible connection or a split connection mode for heat dissipation, the defect is that the assembly process is complicated, the heat dissipation water channel of the motor and the heat dissipation water channel of the controller are independent from each other, are separately processed and formed and are connected through a water pipe, the number of parts is increased, the cost is increased, moreover, the sealing structure connection is needed to be added between the heat radiation water channel of the motor and the heat radiation water channel of the motor integrated controller, so that the leakage risk exists, meanwhile, the motor, the electric control and the reducer are simply physically integrated, so that the axial size and the radial size of the electric drive are large, the arrangement of an electric drive system is not facilitated, and the miniaturization of the electric drive system also has serious challenges. In addition, because the reduction gear is close to motor wire winding tip, near unable effective heat dissipation, the toasting of motor can lead to the reduction gear oil temperature to rise, in case exceed the suitable oil temperature operating range of reduction gear, can lead to the reduction gear operating mode to worsen, efficiency reduces, also becomes a problem that awaits a urgent need to solve to how the effectual heat dissipation of reduction gear.
Therefore, there is a need to provide an electric drive system to solve the above technical problems.
Disclosure of Invention
The invention aims to provide an electric drive system and an automobile, so as to achieve the purposes of high integration level, small volume, light weight and good heat dissipation performance.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electric drive system is provided, comprising:
the motor assembly comprises a motor shell, wherein a plurality of motor cooling water channels are arranged on the circumferential direction of the side wall of the motor shell, each motor cooling water channel extends along the radial direction of the motor shell, and one ends of the plurality of motor cooling water channels are sequentially communicated in series;
the inverter assembly comprises an inverter shell and a motor cooling water channel, wherein the inverter shell is arranged on the outer side wall of the motor shell, and the inverter cooling water channel is arranged in the inverter shell and communicated with the motor cooling water channel;
the reducer assembly comprises a reducer shell, wherein the reducer shell is connected with the motor shell, and the reducer shell is used for enabling the other ends of the motor cooling water channels to be sequentially connected in series and communicated.
As a preferable technical solution of the above electric drive system, the inverter cooling water channel includes an inverter cooling water channel disposed at a bottom portion in the inverter housing, a side wall of the inverter cooling water channel is provided with an inverter inlet communicated with one of the adjacent motor cooling water channels, another side wall of the inverter cooling water channel is provided with an inverter outlet communicated with the other adjacent motor cooling water channel, and the inverter inlet and the inverter outlet are disposed in a staggered manner.
In a preferred embodiment of the above electric drive system, the motor cooling water channel is disposed in a side wall of the motor housing, and one end of the motor cooling water channel near the speed reducer assembly penetrates through an end portion of the motor housing.
As a preferred aspect of the electric drive system, the inverter housing is integrally formed with the motor housing.
As a preferable technical solution of the above electric drive system, the reducer case is provided with a side water passage sealing surface, and when the reducer case is connected to the motor case, the side water passage sealing surface sequentially connects the other ends of the plurality of motor cooling water passages in series.
As an optimal technical scheme of the electric drive system, a motor inlet and a motor outlet are arranged on the motor shell, the motor inlet is communicated with the motor cooling water channels at one ends of the motor cooling water channels which are connected in series, and the motor outlet is communicated with the motor cooling water channels at the other ends of the motor cooling water channels.
As a preferable aspect of the electric drive system described above, the inverter assembly further includes:
the power module is arranged in the inverter shell and is arranged above the inverter cooling water channel;
the driving plate module is arranged in the inverter shell and is arranged above the power module;
the control panel module is arranged in the inverter shell, and a shielding module is arranged below the control panel module;
the current sensor module is arranged in the inverter shell and is arranged on one side of the power module;
the alternating current busbar module is arranged in the inverter shell and is arranged on one side of the current sensor module, which is far away from the power module;
and the direct-current bus capacitor module is arranged in the inverter shell and is arranged on the other side of the power module.
As a preferable technical solution of the above electric drive system, the inverter assembly further includes an inverter upper cover, the inverter upper cover is connected to the inverter housing, and the power module, the drive board module, the control board module, the current sensor module, the ac busbar module and the dc bus capacitor module are all disposed in a cavity formed by the inverter upper cover and the inverter housing.
As a preferable aspect of the above electric drive system, the electric motor assembly further includes:
a motor shaft disposed within the motor housing;
the motor rotor module is arranged on the motor shaft;
and the motor stator module is arranged in the motor shell, and a motor winding is arranged between the motor stator module and the motor rotor module.
There is provided an automobile comprising an electric drive system as defined in any one of the preceding claims.
The invention has the beneficial effects that:
the inverter cooling water channel of the electric drive system cools one part of the inverter assembly and the motor assembly in parallel and then cools the other part of the motor assembly in series, so that the whole cooling water channel of the electric drive system is shortened, the flowing resistance of cooling liquid is reduced, and the utilization rate of the cooling liquid is improved. The motor assembly and the inverter assembly are integrated in the radial direction, the motor assembly and the inverter assembly share the cooling water channel, and compared with a simple physical integrated structure of a motor and a controller, the radial overall height of an electric drive system is greatly reduced by effectively saving the external sealing wall thickness of the motor cooling water channel, the independent water channel height, the safety distance between the motor shell and the inverter shell and the external sealing wall thickness of the inverter cooling water channel;
the motor assembly and the inverter assembly share the cooling water channel, so that a cooling water channel of an electric drive system is shortened, the flowing resistance of cooling liquid is reduced, the cooling effect is good, the power of a water pump for promoting the flowing of the cooling liquid is reduced, the use cost is reduced, the use of fastening parts, sealing parts and the like for connecting the cooling water channel of the inverter and the cooling water channel of the motor in the prior art is reduced, the production cost is reduced, the assembly efficiency is improved, and the risk of leakage of the cooling liquid is reduced;
in addition, the water channel integrated by the inverter cooling water channel and the motor cooling water channel can be used for cooling the speed reducer assembly, the cooling coverage area is large, the structure of the speed reducer assembly and the speed reducer oil can be cooled, so that the speed reducer oil always works at a proper temperature, the working efficiency of the speed reducer is improved, and the working efficiency of an electric drive system is further improved.
Drawings
FIG. 1 is a schematic diagram of an overall configuration of an electric drive system provided by an embodiment of the present invention;
FIG. 2 is an exploded view of a motor assembly and a reducer assembly according to an embodiment of the present invention;
fig. 3 is a schematic view of a virtual structure of a motor cooling water channel and an inverter cooling water channel according to an embodiment of the present invention;
fig. 4 is a first perspective physical schematic view of an inverter cooling water channel provided by an embodiment of the invention;
fig. 5 is a schematic physical structure diagram of a second view angle of an inverter cooling water channel provided by an embodiment of the invention;
FIG. 6 is a schematic diagram of a portion of an inverter assembly according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an inverter assembly provided in an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electric machine assembly according to an embodiment of the present invention.
In the figure:
1. a motor assembly; 2. an inverter assembly; 3. a reducer assembly;
11. a motor housing; 12. a motor cooling water channel; 13. a liquid inlet of the motor; 14. a motor liquid outlet; 15. a motor shaft; 16. a motor rotor module; 17. a motor stator module; 18. a motor winding; 19. a motor end cover;
21. an inverter case; 22. an inverter cooling water channel; 221. an inverter cooling water tank; 222. a liquid inlet of the inverter; 223. an inverter liquid outlet; 23. a power module; 24. a drive board module; 25. a control panel module; 26. a shielding module; 27. a current sensor module; 28. an alternating current busbar module; 29. a DC bus capacitor module; 210. a high-voltage direct-current plug connector; 211. inverter upper cover
31. A reducer housing; 32. side water channel sealing surface.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-3, the present embodiment provides an electric drive system including a motor assembly 1, an inverter assembly 2, and a reducer assembly 3. The motor assembly 1 includes motor casing 11, and motor casing 11 is equipped with a plurality of motor cooling water channels 12 along the axial of lateral wall, and every motor cooling water channel 12 all follows motor casing 11 radial extension, and the one end of a plurality of motor cooling water channels 12 is established ties the intercommunication in proper order. The inverter assembly 2 includes an inverter housing 21, the inverter housing 21 is disposed on an outer side wall of the motor housing 11, an inverter cooling water passage 22 is disposed inside the inverter housing 21, and the inverter cooling water passage 22 is communicated with the motor cooling water passage 12.
The inverter cooling water channel 22 is used for cooling one part of the inverter assembly 2 and the motor assembly 1 in parallel and then cooling the other part of the motor assembly 1 in series, so that the whole cooling water channel of the electric drive system is shortened, the flowing resistance of cooling liquid is reduced, and the utilization rate of the cooling liquid is improved. The motor assembly 1 and the inverter assembly 2 are integrated in the radial direction, the motor assembly 1 and the inverter assembly 2 share the cooling water channel, and compared with a simple physical integrated structure of a motor and a controller, the external sealing wall thickness of the motor cooling water channel 12, the independent water channel height, the safety distance between the motor shell 11 and the inverter shell 21 and the external sealing wall thickness of the inverter cooling water channel 22 are effectively saved, the overall height of the electric drive system in the radial direction is greatly reduced, the motor assembly 1 and the reducer assembly 2 are integrated in the axial direction, the axial length of the electric drive system is reduced, the space layout is compact, the flexibility of the whole vehicle arrangement is improved, and the whole vehicle arrangement is facilitated; the motor assembly 1 and the inverter assembly 2 share the cooling water channel, so that a cooling water channel of an electric drive system is shortened, the flowing resistance of cooling liquid is reduced, the cooling effect is good, the power of a water pump for promoting the flowing of the cooling liquid is also reduced, the use cost is reduced, the use of fastening parts, sealing parts and the like for connecting the inverter cooling water channel 22 and the motor cooling water channel 12 in the prior art is reduced, the production cost is reduced, the assembly efficiency is improved, and the risk of leakage of the cooling liquid is reduced.
The reducer assembly 3 includes a reducer housing 31, the reducer housing 31 is connected to the motor housing 11, and the reducer housing 31 connects the other ends of the plurality of motor cooling water channels 12 in series in order to form a closed water channel by the motor cooling water channels 12. The integrated water route of inverter cooling water course 22 and motor cooling water course 12 can also be simultaneously for the cooling of reduction gear assembly 3, and the cooling coverage area is big, can dispel the heat to reduction gear assembly 3's structure and reduction gear oil for reduction gear oil works at more suitable temperature always, has improved the work efficiency of reduction gear, and then has improved the work efficiency of electric drive system.
In the prior art, the motor housing 11 and the inverter housing 21 are separately arranged, and the inverter cooling water channel 22 and the motor cooling water channel 12 are separately arranged, so that the electric drive system has low integration level and larger overall size. In the present embodiment, the inverter housing 21 is integrally formed with the motor housing 11, the bottom portion of the inverter housing 21 shares a portion with the motor housing 11, and the safety distance of the installation between the inverter housing 21 and the motor housing 11 in the related art is eliminated, so that the overall height of the electric drive system can be reduced in the radial direction. As shown in fig. 4 and 5, the inverter cooling water channel 22 includes an inverter cooling water channel 221 disposed at the bottom inside the inverter housing 21, and the cooling liquid entering the inverter cooling water channel 221 can cool the inverter assembly 2 and the motor assembly 1 at the same time, thereby saving a water channel, and further reducing the overall height of the electric drive system in the radial direction.
An inverter liquid inlet 222 communicated with one adjacent motor cooling water channel 12 is formed in one side wall of the inverter cooling water channel 221, an inverter liquid outlet 223 communicated with the other adjacent motor cooling water channel 12 is formed in the other side wall of the inverter cooling water channel 221, cooling liquid enters the inverter cooling water channel 221 from one motor cooling water channel 12 through the inverter liquid inlet 222, and then is discharged into the other motor cooling water channel 12 through the inverter liquid outlet 223 after the inverter cooling water channel 221 circulates, and therefore cooling of the inverter assembly 2 and a part of the motor assembly 1 is achieved. In order to improve the cooling effect on the inverter assembly 2 and a part of the motor assembly 1, in the present embodiment, the inverter liquid inlet 222 and the inverter liquid outlet 223 are arranged in a staggered manner.
In this embodiment, as shown in fig. 6 and 7, the inverter assembly 2 further includes a power module 23, the power module 23 is disposed in the inverter housing 21 and is disposed above the inverter cooling water channel 22, a driving board module 24 is disposed above the power module 23, a control board module 25 is further disposed in the inverter housing 21, a shielding module 26 is disposed below the control board module 25, a current sensor module 27 and an ac busbar module 28 are sequentially disposed on one side of the power module 23, and a dc busbar capacitance module 29 is disposed on the other side of the power module 23, and this arrangement is such that the inverter cooling water channel 22 can maximally assist in dissipating heat of each component of the inverter assembly 2, and the arrangement structure is compact, and the structure compactness of the electric drive system is improved. In this embodiment, a high voltage dc connector 210 is also connected to the dc bus capacitor assembly 29 for connection to other components external to the electric drive system.
The inverter housing 21 is further connected with an inverter upper cover 211 (see fig. 2), and the power module 23, the driving board module 24, the control board module 25, the current sensor module 27, the ac busbar module 28, and the dc busbar capacitance module 29 are all disposed in a cavity formed by the inverter upper cover 211 and the inverter housing 21, so as to protect components disposed in the inverter housing 21 from being damaged. Further, the inverter upper cover 211 is hermetically connected to the inverter housing 21, so as to prevent dust or liquid from entering the inverter assembly 2 and affecting the normal operation of the inverter assembly 2.
With continued reference to fig. 2, the motor housing 11 is a generally cylindrical housing, and the sidewall of the motor housing 11 has a certain thickness, in this embodiment, in order to further reduce the height of the electric drive system in the radial direction, the motor cooling water channel 12 is disposed in the sidewall of the motor housing 11, and one end of the motor cooling water channel 12 close to the reducer assembly 3 penetrates through an end portion of the motor housing 11, and the two adjacent motor cooling water channels 12 are communicated through the reducer housing 31, and the other end of the motor cooling water channel 12 is communicated with the other end of the adjacent motor cooling water channel 12 when machining, so as to achieve series connection of the plurality of motor cooling water channels 12, which is simple in structure and can also cool the reducer assembly 3 at the same time.
Further, the reducer case 31 is provided with a side water passage sealing surface 32, and when the reducer case 31 is connected to the motor case 11, the side water passage sealing surface 32 causes the other ends of the plurality of motor cooling water passages 12 to be sequentially communicated in series. Although the reducer assembly 3 is disposed in the axial direction of the motor assembly 1, the size of the electric drive system in the axial direction is not increased, and the cooling of the reducer assembly 3 can be realized without increasing the cooling water path.
Referring to fig. 5, in the present embodiment, a motor inlet 13 and a motor outlet 14 are provided on the motor housing 11, the motor inlet 13 is communicated with the motor cooling water channel 12 at one end of the plurality of motor cooling water channels 12 connected in series, and the motor outlet 14 is communicated with the motor cooling water channel 12 at the other end. That is, the plurality of motor cooling water channels 12 are sequentially connected in series, and one of the motor cooling water channels 12 disposed at both ends is communicated with the motor inlet 13, and the other is communicated with the motor outlet 14, so as to realize complete circulation of the cooling liquid and cooling of each component of the motor assembly 1.
In the embodiment, as shown in fig. 8, the motor assembly 1 further includes a motor shaft 15, the motor shaft 15 is disposed in the motor housing 11, and one end of the motor shaft 15 extends out of the motor housing 11 and is connected to the reducer assembly 3, the other end of the motor shaft 15 is disposed in the motor housing 11, and other structures connected to the motor shaft 15 are conventional and will not be described in detail herein. A motor rotor module 16 is arranged on the motor shaft 15, a motor stator module 17 is further arranged in the motor housing 11, and a motor winding 18 is arranged between the motor stator module 17 and the motor rotor module 16.
One side of the motor shell 11 departing from the speed reducer assembly 3 is provided with a motor end cover 19 to realize the sealing of the motor assembly 1, and prevent external substances such as dust and liquid from entering the motor assembly 1 to influence the normal work of the electric drive system.
The embodiment also provides an automobile comprising the electric drive system.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An electric drive system, comprising:
the motor assembly (1) comprises a motor shell (11), wherein a plurality of motor cooling water channels (12) are formed in the circumferential direction of the side wall of the motor shell (11), each motor cooling water channel (12) extends along the radial direction of the motor shell (11), and one ends of the plurality of motor cooling water channels (12) are sequentially communicated in series;
the inverter assembly (2) comprises an inverter shell (21) and is arranged on the outer side wall of the motor shell (11), an inverter cooling water channel (22) is arranged inside the inverter shell (21), and the inverter cooling water channel (22) is communicated with the motor cooling water channel (12);
reduction gear assembly (3), including reducer casing (31), reducer casing (31) with motor casing (11) are connected, just reducer casing (31) make a plurality of the other end of motor cooling water course (12) is the intercommunication of establishing ties in proper order.
2. The electric drive system according to claim 1, characterized in that the inverter cooling water channel (22) includes an inverter cooling water channel (221) disposed at a bottom portion in the inverter housing (21), one side wall of the inverter cooling water channel (221) is provided with an inverter inlet port (222) communicating with one of the adjacent motor cooling water channels (12), the other side wall of the inverter cooling water channel (221) is provided with an inverter outlet port (223) communicating with the other adjacent motor cooling water channel (12), and the inverter inlet port (222) and the inverter outlet port (223) are staggered.
3. The electric drive system of claim 1, wherein the motor cooling water channel (12) is disposed in a sidewall of the motor housing (11), and an end of the motor cooling water channel (12) proximate the speed reducer assembly (3) extends through an end of the motor housing (11).
4. The electric drive system as claimed in claim 1, characterized in that the inverter housing (21) is integrally formed with the motor housing (11).
5. The electric drive system according to claim 1, characterized in that the reducer case (31) is provided with a side water passage sealing surface (32), and the side water passage sealing surface (32) sequentially communicates the other ends of the plurality of motor cooling water passages (12) in series when the reducer case (31) is coupled to the motor case (11).
6. An electric drive system according to claim 1, characterized in that a motor inlet (13) and a motor outlet (14) are provided in the motor housing (11), the motor inlet (13) communicating with the motor cooling water channel (12) at one end of the plurality of motor cooling water channels (12) connected in series, the motor outlet (14) communicating with the motor cooling water channel (12) at the other end.
7. The electric drive system of claim 1, characterized in that the inverter assembly (2) further comprises:
a power module (23) disposed in the inverter case (21) and above the inverter cooling water passage (22);
a drive board module (24) disposed in the inverter case (21) and disposed above the power module (23);
a control panel module (25) disposed within the inverter housing (21), a shield module (26) being disposed below the control panel module (25);
a current sensor module (27) disposed within the inverter case (21) and disposed on one side of the power module (23);
the alternating current busbar module (28) is arranged in the inverter shell (21) and is arranged on one side, away from the power module (23), of the current sensor module (27);
and the direct-current bus capacitor module (29) is arranged in the inverter shell (21) and is arranged on the other side of the power module (23).
8. The electric drive system of claim 7, wherein the inverter assembly (2) further includes an inverter top cover (211), the inverter top cover (211) being coupled to the inverter housing (21), the power module (23), the drive plate module (24), the control board module (25), the current sensor module (27), the AC busbar module (28), and the DC busbar capacitance module (29) being disposed within a cavity formed by the inverter top cover (211) and the inverter housing (21).
9. The electric drive system of claim 1, wherein the electric machine assembly (1) further comprises:
a motor shaft (15) provided in the motor housing (11);
a motor rotor module (16) disposed on the motor shaft (15);
the motor stator module (17) is arranged in the motor shell (11), and a motor winding (18) is arranged between the motor stator module (17) and the motor rotor module (16).
10. An automobile, characterized in that it comprises an electric drive system according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111657285.2A CN114337063A (en) | 2021-12-31 | 2021-12-31 | Electric drive system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111657285.2A CN114337063A (en) | 2021-12-31 | 2021-12-31 | Electric drive system and automobile |
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| Publication Number | Publication Date |
|---|---|
| CN114337063A true CN114337063A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111657285.2A Pending CN114337063A (en) | 2021-12-31 | 2021-12-31 | Electric drive system and automobile |
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| CN (1) | CN114337063A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114938110A (en) * | 2022-06-16 | 2022-08-23 | 广东汇天航空航天科技有限公司 | Motor assembly and flight equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114938110A (en) * | 2022-06-16 | 2022-08-23 | 广东汇天航空航天科技有限公司 | Motor assembly and flight equipment |
| CN114938110B (en) * | 2022-06-16 | 2023-08-18 | 广东汇天航空航天科技有限公司 | Motor assembly and flight equipment |
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Application publication date: 20220412 |