CN216993895U - Electric drive system, power system of electric automobile and electric automobile - Google Patents
Electric drive system, power system of electric automobile and electric automobile Download PDFInfo
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- CN216993895U CN216993895U CN202220474299.4U CN202220474299U CN216993895U CN 216993895 U CN216993895 U CN 216993895U CN 202220474299 U CN202220474299 U CN 202220474299U CN 216993895 U CN216993895 U CN 216993895U
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Abstract
The utility model discloses an electric drive system, a power system of an electric automobile and the electric automobile, wherein the electric drive system comprises a box body, a drive motor, a first planet row, a second planet row, a differential mechanism and a gear shifting mechanism, the drive motor comprises an output shaft, the first planet row comprises a first sun gear, a first planet carrier and a first gear ring, the second planet row comprises a second sun gear, a second planet gear structure and a second gear ring, the differential mechanism comprises a differential mechanism shell, the gear shifting mechanism comprises a brake and a clutch, the brake has a braking state and a non-braking state, and the clutch has a combination state and a separation state; when the brake is in a braking state, the clutch is in a separation state; when the brake is in a non-braking state, the clutch is in a combined state; therefore, the electric drive system can output two rotating speeds, namely has two gears, is better suitable for complex road conditions, and has the advantages of simple structure, small volume, small space required by arrangement and better adaptability.
Description
Technical Field
The utility model relates to the technical field of pure electric vehicle electric drive, in particular to an electric drive system, a power system of an electric vehicle and the electric vehicle.
Background
The electric automobile has the advantages of cleanness, no pollution, high energy efficiency, low noise and the like, has better industrialization potential, and adopts a two-gear speed-changing scheme for an electric driving system of the electric automobile in order to adapt to complex road conditions. At present, in a two-gear speed-changing scheme of an electric drive system, a gear-shifting mechanism for realizing two-gear switching is complex in structure, so that the overall structure of the electric drive system is large, and the electric drive system is large in required arrangement space and poor in adaptation.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an electric drive system, a power system of an electric automobile and the electric automobile, and aims to solve the problems that the existing gear shifting mechanism for realizing two-gear switching is complex in structure, so that the space required by the arrangement of the electric drive system is large, and the adaptability is poor.
To achieve the above object, the present invention provides an electric drive system, including:
a box body;
the driving motor is arranged in the box body and comprises an output shaft;
the first planet row comprises a first sun gear, a first planet wheel, a first planet carrier and a first gear ring, and the first sun gear is connected with an output shaft of the driving motor;
the second planet row comprises a second sun gear, a second planet gear structure and a second gear ring, the second sun gear is fixedly connected with the first planet carrier, the second gear ring is fixedly arranged on the box body, and the second planet gear structure comprises a second planet carrier;
a differential including a differential case fixedly connected with the second planetary wheel structure, and,
the gear shifting mechanism comprises a brake and a clutch, the brake is arranged between the box body and the first gear ring, the brake has a braking state and a non-braking state, the clutch is arranged between the first planet carrier and the first gear ring, and the clutch has a combined state and a separated state;
when the brake is in the braking state, the box body is fixedly connected with the first gear ring, the clutch is in the separation state, and the first planet carrier and the first gear ring are separated;
when the brake is in the non-braking state, the box body is separated from the first gear ring, the clutch is in the combining state, and the first planet carrier is fixedly connected with the first gear ring.
Optionally, the brake includes a first fixing portion and a brake disc, the first fixing portion is disposed on the box, and the brake disc is movable relative to the first fixing portion to abut against the first gear ring, so that the first gear ring is prevented from rotating.
Optionally, the clutch includes a second fixing portion and a pressure plate, the second fixing portion is fixedly connected to the first gear ring, the pressure plate is fixedly connected to the first planet carrier and can move relative to the second fixing portion to abut against the first gear ring, so that the first gear ring is fixedly connected to the first planet carrier.
Optionally, the output shaft of the driving motor, the first planet row and the second planet row are coaxially arranged; or the like, or, alternatively,
the differential, the output shaft of the driving motor, the first planet row and the second planet row are coaxially arranged.
Optionally, the differential further comprises a left half axle gear, a right half axle gear and two planetary gears, which are arranged in the differential housing, and the left half axle gear and the right half axle gear are both meshed with the two planetary gears;
the left half axle gear sequentially penetrates through the second sun gear, the first sun gear and the output shaft of the driving motor.
Optionally, the differential case is integrally provided with the second planetary gear structure.
Optionally, the second planet wheel structure still includes second planet wheel and third planet wheel, the second planet wheel with the third planet wheel is parallelly connected, and passes through the second planet carrier is connected, the second planet wheel with the meshing of second sun gear, the third planet wheel with the meshing of second ring gear.
Optionally, the clutch comprises a wet clutch.
The present invention also provides a power system of an electric vehicle, comprising an electric drive system, the electric drive system comprising:
a box body;
the driving motor is arranged in the box body and comprises an output shaft;
the first planet row comprises a first sun gear, a first planet wheel, a first planet carrier and a first gear ring, and the first sun gear is connected with an output shaft of the driving motor;
the second planet row comprises a second sun gear, a second planet gear structure and a second gear ring, the second sun gear is fixedly connected with the first planet carrier, the second gear ring is fixedly arranged on the box body, and the second planet gear structure comprises a second planet carrier;
a differential including a differential case fixedly connected with the second planetary wheel structure, and,
the gear shifting mechanism comprises a brake and a clutch, the brake is arranged between the box body and the first gear ring, the brake has a braking state and a non-braking state, the clutch is arranged between the first planet carrier and the first gear ring, and the clutch has a combined state and a separated state;
when the brake is in the braking state, the box body is fixedly connected with the first gear ring, the clutch is in the separation state, and the first planet carrier and the first gear ring are separated;
when the brake is in the non-braking state, the box body is separated from the first gear ring, the clutch is in the combining state, and the first planet carrier is fixedly connected with the first gear ring.
The utility model further provides an electric automobile which comprises the power system of the electric automobile.
In the technical solution of the present invention, the electric drive system includes a case, a driving motor, a first planet row, a second planet row, a differential and a shift mechanism, the shift mechanism includes a brake and a clutch, the electric drive system realizes speed switching through the brake and the clutch, the brake is disposed between the case and the first ring gear and has a braking state and a non-braking state, the clutch is disposed between the first planet carrier and the first ring gear and has a coupling state and a decoupling state, when the brake is in the braking state, the case is fixedly connected with the first ring gear, that is, the first ring gear is fixed, the clutch is in the decoupling state, the first planet carrier is decoupled from the first ring gear, the driving motor drives the first sun gear to rotate, and the first planet gear is engaged with the first sun gear and the first ring gear, the second planetary gear structure is meshed with the second sun gear and the second gear ring to drive the second planetary carrier to rotate, and the second gear ring is fixedly arranged on the box body, so that the output rotating speed of the driving motor is reduced by the second planetary row and then is transmitted to the differential mechanism by the second planetary carrier, and the left wheel and the right wheel rotate at the first rotating speed; when the brake is in a non-braking state, the box body is separated from the first gear ring, the clutch is in the combination state, the first planet carrier is fixedly connected with the first gear ring, the first planet carrier and the first gear ring rotate in the same speed and the same direction, namely the rotation direction and the rotation speed of the first planet carrier and the first gear ring and the sun gear are the same, namely the first planet row directly outputs the rotation speed of the driving motor, the second sun gear is fixedly connected with the first planet carrier so as to transmit the output rotation speed of the driving motor to the second sun gear, the second planet gear structure is meshed with the second sun gear and the second gear ring to drive the second planet carrier to rotate, and the second gear ring is fixedly arranged on the box body, so the output rotation speed of the driving motor is reduced by the second planet row, the differential is transmitted to the second planet carrier, so that the left wheel and the right wheel rotate at a second rotating speed; therefore, the electric drive system can output two rotating speeds, namely the electric drive system realizes two-gear transmission so as to be capable of better adapting to complex road conditions, the electric drive system adopts the first planet row and the second planet row to realize power transmission, the planet row has compact structure and small occupied space, and the brake and the clutch have simpler structure and small volume, so that the whole electric drive system has more compact structure, small required space for arrangement and better adaptability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of an electric drive system provided in the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
43 | |
| 1 | |
5 | |
| 2 | |
51 | |
| 3 | |
52 | Left |
| 31 | |
53 | Right |
| 32 | |
54 | |
| 33 | |
6 | |
| 34 | |
61 | Brake |
| 4 | |
611 | First fixed |
| 41 | |
612 | |
| 42 | Second |
62 | |
| 421 | |
621 | Second |
| 422 | |
622 | |
| 423 | Third planet wheel |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The electric automobile has the advantages of cleanness, no pollution, high energy efficiency, low noise and the like, has better industrialization potential, and adopts a two-gear speed-changing scheme for an electric driving system of the electric automobile in order to adapt to complex road conditions. At present, in a two-gear speed-changing scheme of an electric drive system, a gear-shifting mechanism for realizing two-gear switching is complex in structure, so that the overall structure of the electric drive system is large, and the electric drive system is large in required arrangement space and poor in adaptation.
Referring to fig. 1, the electric drive system 100 includes a case 1, a driving motor 2, a first planetary gear set 3, a second planetary gear set 4, a differential 5 and a gear shift mechanism 6, the driving motor 2 is disposed in the case 1 and includes an output shaft, the first planetary gear set 3 includes a first sun gear 31, a first planetary gear 32, a first carrier 33 and a first ring gear 34, the first sun gear 31 is connected to the output shaft of the driving motor 2, the second planetary gear set 4 includes a second sun gear 41, a second planetary gear structure 42 and a second ring gear 43, the second sun gear 41 is fixedly connected to the first carrier 33, the second ring gear 43 is fixedly mounted to the case 1, the second planetary gear structure 42 includes a second carrier 421, the differential 5 includes a differential housing 51, the differential housing 51 is fixedly connected to the second planetary gear structure 42, the shift mechanism 6 includes a brake 61 and a clutch 62, the brake 61 is provided between the case 1 and the first ring gear 34, the brake 61 has a braking state and a non-braking state, the clutch 62 is provided between the first carrier 33 and the first ring gear 34, and the clutch 62 has an engaged state and a disengaged state; when the brake 61 is in the braking state, the box 1 is fixedly connected with the first gear ring 34, the clutch 62 is in the separating state, and the first planet carrier 33 is separated from the first gear ring 34; when the brake 61 is in the non-braking state, the case 1 is separated from the first ring gear 34, the clutch 62 is in the engaged state, and the first carrier 33 and the first ring gear 34 are fixedly connected.
In the technical solution of the present invention, the electric drive system 100 includes a case 1, a driving motor 2, a first planet row 3, a second planet row 4, a differential 5, and a shift mechanism 6, the shift mechanism 6 includes a brake 61 and a clutch 62, the electric drive system 100 realizes speed switching by the brake 61 and the clutch 62, the brake 61 is disposed between the case 1 and the first ring gear 34 and has a braking state and a non-braking state, the clutch 62 is disposed between the first planet carrier 33 and the first ring gear 34 and has an engaging state and a disengaging state, when the brake 61 is in the braking state, the case 1 is fixedly connected with the first ring gear 34, that is, the first ring gear 34 is fixed, the clutch 62 is in the disengaging state, the first planet carrier 33 is separated from the first ring gear 34, the driving motor 2 drives the first sun gear 31 to rotate, the first planet gear 32 is meshed with the first sun gear 31 and the first ring gear 34 to drive the first planet carrier 33 to rotate, the second sun gear 41 is fixedly connected with the first planet carrier 33, so that the output rotation speed of the driving motor 2 is reduced by the first planet row 3 and then transmitted to the second sun gear 41, the second planet gear structure 42 is meshed with the second sun gear 41 and the second ring gear 43 to drive the second planet carrier 421 to rotate, and the second ring gear 43 is fixedly mounted on the box 1, so that the output rotation speed of the driving motor 2 is reduced by the second planet row 4 and then transmitted to the differential 5 by the second planet carrier 421, so that the left and right wheels rotate at the first rotation speed; when the brake 61 is in a non-braking state, the case 1 and the first ring gear 34 are separated, the clutch 62 is in the engaged state, the first carrier 33 and the first ring gear 34 are fixedly connected, the first carrier 33 and the first ring gear 34 rotate in the same speed and the same direction, that is, the first carrier 33 and the first ring gear 34 rotate in the same direction as the first sun gear 31, that is, the first planet row 3 directly outputs the rotation speed of the driving motor 2, the second sun gear 41 is fixedly connected with the first carrier 33, so as to transmit the output rotation speed of the driving motor 2 to the second sun gear 41, the second planet gear structure 42 is meshed with the second sun gear 41 and the second ring gear 43, so as to drive the second planet carrier 421 to rotate, and since the second ring gear 43 is fixedly mounted on the case 1, therefore, after the output rotation speed of the driving motor 2 is reduced by the second planetary gear set 4, the output rotation speed is transmitted to the differential 5 by the second planetary gear set 421, so that the left and right wheels rotate at a second rotation speed; therefore, the electric drive system 100 can output two rotating speeds, that is, the electric drive system 100 realizes two-gear transmission to be capable of better adapting to complex road conditions, the electric drive system 100 adopts the first planetary row 3 and the second planetary row 4 to realize power transmission, the planetary rows have compact structure and small occupied space, and the brake 61 and the clutch 62 have simpler structure and small volume, so that the whole electric drive system 100 has more compact structure, small space required by arrangement and better adaptability.
Specifically, referring to fig. 1, the brake 61 includes a first fixing portion 611 and a brake disc 612, the first fixing portion 611 is disposed on the case 1, the brake disc 612 is movable relative to the first fixing portion 611 to abut against the first ring gear 34, so that the first ring gear 34 is prevented from rotating, that is, the brake disc 612 is combined with the first fixing portion 611 to prevent the first ring gear 34 from rotating, that is, the first fixing portion 611 and the brake disc 612 are separated and combined to realize rotation and braking of the first ring gear 34, when the first fixing portion 611 and the brake disc 612 are combined, the case 1 is fixedly connected with the first ring gear 34 through the brake 61, and the brake 61 is in the braking state to brake the first ring gear 34; when the first fixing portion 611 and the brake disk 612 are separated, the case 1 is separated from the first ring gear 34, the brake 61 is in a non-braking state, the first ring gear 34 is rotatable, and the change in the state of the brake 61 changes the state of the first ring gear 34, thereby changing the output rotation speed of the first planetary gear set 3, and thus the rotation speeds of the left and right wheels.
Specifically, referring to fig. 1, the clutch 62 includes a second fixing portion 621 and a pressure plate 622, the second fixing portion 621 is fixedly connected to the first ring gear 34, the pressure plate 622 is fixedly connected to the first carrier 33 and is capable of moving relative to the second fixing portion 621 to abut against the first ring gear 34, so that the first ring gear 34 is fixedly connected to the first carrier 33, that is, the combination of the second fixing portion 621 and the pressure plate 622 enables the first ring gear 34 and the first carrier 33 to rotate at the same speed in the same direction, that is, the first planetary gear set 3 directly outputs the rotation speed of the driving motor 2, and when the second fixing portion 621 is separated from the pressure plate 622, the first ring gear 34 is separated from the first carrier 33, the first ring gear 34 cannot transmit power to the second planetary gear set 4, the first carrier 33 can transmit power to the second planetary gear set 4, thereby changing the rotation speeds of the left and right wheels.
Specifically, the output shaft of the driving motor 2, the first planet row 3 and the second planet row 4 are coaxially arranged, and the arrangement mode of coaxial arrangement reduces the width size of the electric driving system 100 on the axle compared with the existing arrangement mode of parallel shafts of two planet rows, thereby saving the arrangement space; the arrangement is such that the first planetary row 3 and the second planetary row 4 are connected in series, so that unpowered interrupted gear shifting of the electric drive system 100 is realized, and the power consumption is reduced; in addition, the torque centers of the power components of the electric drive system 100 are made uniform by the coaxial arrangement, which is beneficial to the stability of the transmission.
Further, referring to fig. 1, in an embodiment of the present invention, the differential 5, the output shaft of the driving motor 2, the first planetary row 3 and the second planetary row 4 are coaxially disposed, so that the width dimension of the electric driving system 100 on the axle is further reduced, and the arrangement space is saved.
Further, referring to fig. 1, the differential 5 further includes a left side gear 52, a right side gear 53 and two planet gears 54 which are arranged in the differential housing 51, wherein the left side gear 52 and the right side gear 53 are both meshed with the two planet gears 54; the left side gear 52 sequentially penetrates through the second sun gear 41, the first sun gear 31 and the output shaft of the driving motor 2; the second carrier 421 transmits the rotation of the drive motor 2 to the differential case 51, to rotate the two planetary gears 54 mounted on the differential case 51, thereby driving the left side gear 52 and the right side gear 53 to rotate, the rotation of the left side gear 52 and the right side gear 53 is transmitted to the wheels through the left half shaft of the left side gear 52 and the right half shaft of the right side gear 53, respectively, the left side gear 52 and the right side gear 53 are coaxially arranged, by passing the left side gear 52 through the second sun gear 41, the first sun gear 31 and the output shaft of the drive motor 2 in this order, so as to realize the coaxial arrangement of the differential 5, the output shaft of the driving motor 2, the first planet row 3 and the second planet row 4, thereby saving the arrangement space.
In the present invention, the connection manner between the differential case 51 and the second planetary gear structure 42 is not limited, and may be a threaded connection, specifically, in an embodiment of the present invention, the differential case 51 and the second planetary gear structure 42 are integrally arranged, so as to simplify the assembly step, improve the working efficiency, and simultaneously make the structures of the second planetary gear structure 42 and the differential 5 more compact, and save the installation space.
In the present invention, the number of the planetary gear rows in the second planetary gear structure 42 is not limited, and the planetary gear rows may be a single-row planetary gear or a double-row planetary gear. Specifically, referring to fig. 1, in an embodiment of the present invention, the second planetary gear structure 42 further includes a second planetary gear and a third planetary gear, the second planetary gear is connected in parallel with the third planetary gear and is connected through the second planetary carrier 421, the second planetary gear is engaged with the second sun gear 41, and the third planetary gear is engaged with the second ring gear 43; the rotation warp of driving motor 2 first planet row 3 transmits extremely second sun gear 41, second sun gear 41 with the meshing of second planet wheel to with rotating the transmission extremely the second planet wheel, the second planet wheel with the third planet wheel passes through second planet carrier 421 is connected, consequently the third planet wheel with the synchronous rotation of second planet wheel structure 42, the third planet wheel with the meshing of second ring gear 43, because second ring gear 43 is fixed in on the box 1, consequently rotate and pass through second planet carrier 421 transmission extremely differential 5, through setting up the third planet wheel makes electric drive system 100 realizes great speed ratio, improves transmission efficiency.
Specifically, in an embodiment of the present invention, the clutch 62 includes a wet clutch 62, the wet clutch 62 is the clutch 62 cooled by oil, and the cooling oil can make power transmission smoother and softer, which is beneficial to improving the stability of transmission, and has a long service life, generally no failure, and improved safety performance.
The utility model further provides a power system of an electric vehicle, which includes an electric drive system 100, and the specific structure of the electric drive system 100 refers to the above-mentioned embodiment. It can be understood that, because the power system of the electric vehicle according to the present invention adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is provided herein.
In addition, the utility model also provides an electric automobile which comprises a power system of the electric automobile. It can be understood that, since the electric vehicle according to the present invention adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is provided herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An electric drive system, characterized in that the electric drive system comprises:
a box body;
the driving motor is arranged in the box body and comprises an output shaft;
the first planet row comprises a first sun gear, a first planet wheel, a first planet carrier and a first gear ring, and the first sun gear is connected with an output shaft of the driving motor;
the second planet row comprises a second sun gear, a second planet gear structure and a second gear ring, the second sun gear is fixedly connected with the first planet carrier, the second gear ring is fixedly arranged on the box body, and the second planet gear structure comprises a second planet carrier;
a differential including a differential case fixedly connected with the second planetary wheel structure, and,
the gear shifting mechanism comprises a brake and a clutch, the brake is arranged between the box body and the first gear ring, the brake has a braking state and a non-braking state, the clutch is arranged between the first planet carrier and the first gear ring, and the clutch has a combined state and a separated state;
when the brake is in the braking state, the box body is fixedly connected with the first gear ring, the clutch is in the separation state, and the first planet carrier and the first gear ring are separated;
when the brake is in the non-braking state, the box body is separated from the first gear ring, the clutch is in the combining state, and the first planet carrier is fixedly connected with the first gear ring.
2. The electric drive system of claim 1, wherein the brake includes a first fixing portion and a brake disc, the first fixing portion is disposed on the housing, and the brake disc is movable relative to the first fixing portion to abut against the first ring gear, so that the first ring gear is prevented from rotating.
3. The electric drive system of claim 1, wherein the clutch includes a second fixed portion fixedly connected to the first ring gear and a pressure plate fixedly connected to the first carrier and movable relative to the second fixed portion to abut against the first ring gear so that the first ring gear is fixedly connected to the first carrier.
4. The electric drive system of claim 1, wherein an output shaft of said drive motor, said first planetary row and said second planetary row are coaxially disposed; or the like, or, alternatively,
the differential, the output shaft of the driving motor, the first planet row and the second planet row are coaxially arranged.
5. The electric drive system of claim 4, wherein said differential further comprises a left side gear, a right side gear, and two planetary gears disposed within said differential housing, said left side gear and said right side gear each meshing with two of said planetary gears;
the left half axle gear sequentially penetrates through the second sun gear, the first sun gear and the output shaft of the driving motor.
6. The electric drive system of claim 1 wherein said differential case is integral with said second planetary gear arrangement.
7. The electric drive system of claim 1, wherein the second planetary arrangement further comprises second planet gears and third planet gears connected in parallel and connected through the second planet carrier, the second planet gears meshing with the second sun gear, and the third planet gears meshing with the second ring gear.
8. The electric drive system of claim 1, wherein the clutch comprises a wet clutch.
9. A power system for an electric vehicle, characterized in that it comprises an electric drive system according to any one of claims 1-8.
10. An electric vehicle characterized by comprising the power system of the electric vehicle according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220474299.4U CN216993895U (en) | 2022-03-01 | 2022-03-01 | Electric drive system, power system of electric automobile and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220474299.4U CN216993895U (en) | 2022-03-01 | 2022-03-01 | Electric drive system, power system of electric automobile and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216993895U true CN216993895U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220474299.4U Active CN216993895U (en) | 2022-03-01 | 2022-03-01 | Electric drive system, power system of electric automobile and electric automobile |
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| Country | Link |
|---|---|
| CN (1) | CN216993895U (en) |
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- 2022-03-01 CN CN202220474299.4U patent/CN216993895U/en active Active
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