CN117565737A - A vehicle that is used for trading electric assembly of vehicle and has it - Google Patents

Abstract

The invention discloses a power conversion assembly for a vehicle and the vehicle with the power conversion assembly. The first frame detachably installs in the one side of the first direction of frame, and the second frame is installed in the one side of the first direction of first frame, and second frame and first frame jointly define first chamber that holds, and second frame and first frame are suitable for to establish in the below of the frame of vehicle, and the second frame links to each other and jointly defines the second chamber that holds with the frame. The battery box is disposed in at least one of the first accommodation chamber and the second accommodation chamber. According to the power conversion assembly for the vehicle, the time for supplementing the electric quantity for the vehicle is shortened, different power conversion electric quantity selections can be performed, the running efficiency of the vehicle is improved, the center of gravity of the vehicle is lowered, and the safety of the vehicle in the driving process is improved.

Description

A vehicle that is used for trading electric assembly of vehicle and has it

Technical Field

The invention relates to the technical field of vehicles, in particular to a power conversion assembly for a vehicle and the vehicle with the power conversion assembly.

Background

In the prior art, the power exchange of the new energy heavy truck usually adopts the power exchange between a cab and a container, the power exchange of the back and the power exchange of the two sides of the bottom or the power exchange of the two sides, and the time for charging the battery box is more than 40 minutes. The battery box bracket and the vehicle cannot be separated through the heavy truck capable of changing electricity between the cab and the cargo box, the energy supplementing form can only rely on charging, and the vehicle cannot operate during charging. The charging time is limited by the capacity of the charging post and the maximum charging current allowed by the battery. The heavy truck with back-to-back power conversion has higher vehicle gravity center, and higher risk of rolling and forward tilting when the vehicle turns and brakes suddenly. The heavy truck with the power replaced at the two sides of the bottom has the advantages that batteries can be arranged in the areas at the two sides, so that the electric quantity of 300kWh can be arranged, and the vehicle endurance mileage is shorter than that of the back power replacement. Therefore, the battery box of the heavy truck is excessively charged for too long, the running efficiency of the vehicle is seriously affected, and the gravity center of the vehicle is high, so that the risks of rolling and forward tilting are caused.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a power conversion assembly for a vehicle, which shortens the time for supplementing power to the vehicle, and can select different power conversion power, thereby improving the running efficiency of the vehicle, lowering the center of gravity of the vehicle, improving the safety of the vehicle during driving, and further being beneficial to promoting the market application of new energy heavy trucks.

Another object of the present invention is to provide a vehicle employing the above-mentioned power exchanging assembly for a vehicle.

According to an embodiment of the first aspect of the present invention, a power conversion assembly for a vehicle includes: a first frame having a first direction, a second direction, and a third direction orthogonal to each other, the first frame being detachably mounted on one side of a frame of a vehicle in the first direction; a second frame detachably mounted to one side of the first frame in the first direction, the second frame and the first frame together defining a first receiving cavity, the second frame and the first frame being adapted to be disposed under a frame of a vehicle, the second frame being connected to the frame and together defining a second receiving cavity; the battery box is arranged in at least one of the first accommodating cavity and the second accommodating cavity.

According to the battery changing assembly for the vehicle, provided by the embodiment of the invention, the first frame, the second frame and the battery box are arranged, the first frame is detachably connected with the vehicle frame, and the battery box can be directly detached from the first accommodating cavity for battery changing. Therefore, compared with a traditional power conversion assembly for a vehicle, the time for supplementing the electric quantity for the vehicle is shortened, different power conversion electric quantity selections can be carried out, the running efficiency of the vehicle is improved, the center of gravity of the vehicle is lowered, and the safety of the vehicle in the driving process is improved.

According to some embodiments of the invention, the second frame has a recess formed therein, the recess being adapted to mount the vehicle frame to define the second receiving cavity, the recess being located in a central portion of the second frame.

According to some embodiments of the invention, the second frame comprises: a first subframe; the first accommodating cavity is formed by the first sub-frames, the second sub-frames and the first accommodating cavity, wherein the first sub-frames are arranged on one side of the first sub-frames in the first direction, the second sub-frames are spaced apart in the second direction, the grooves are defined by two adjacent second sub-frames, and the first accommodating cavity is defined by the second sub-frames and the first frame.

According to some embodiments of the invention, the second subframe comprises a plurality of frame segments spaced apart along the third direction, wherein the frame segments comprise a first connection segment, a second connection segment and a third connection segment connected to each other, the first connection segment and the third connection segment being connected to the first subframe, the first connection segment and the third connection segment extending along the first direction, the second connection segment extending along the second direction.

According to some embodiments of the invention, the second subframe further comprises a plurality of reinforcing ribs, wherein the plurality of reinforcing ribs are arranged on one side of the frame section away from the first subframe, the plurality of reinforcing ribs are respectively positioned on two sides of the first subframe in the second direction, and the reinforcing ribs extend along the third direction.

According to some embodiments of the invention, the first frame includes a third subframe, a fourth subframe, and a plurality of support columns spaced apart along the first direction, the support columns connected between the third subframe and the fourth subframe, the plurality of support columns spaced apart along a circumferential direction of the first frame.

According to some embodiments of the invention, the third sub-frame and the fourth sub-frame have the same structure, the third sub-frame includes a frame body, a plurality of first support bars and a plurality of second support bars, the plurality of first support bars and the plurality of second support bars are all disposed in the frame body, the plurality of first support bars are spaced apart along the second direction, the first support bars extend along the third direction, the plurality of second support bars are divided into a first support group and a second support group, the plurality of second support bars of the first support group are connected between the frame body and the first support bars and are spaced apart along the third direction, the plurality of second support bars of the second support group are connected between two adjacent first support bars and are spaced apart along the third direction, and the second support bars extend along the second direction.

According to some embodiments of the invention, the power conversion assembly for a vehicle further comprises: and the controller is electrically connected with the battery box and is provided with a battery replacement control system and a battery management system.

According to a second aspect of the present invention, a vehicle includes: a frame; the front suspension system and the rear suspension system are arranged on the frame, the front suspension system and the rear suspension system are spaced apart from each other along the length direction of the frame, the power exchanging assembly is arranged on one side of the frame adjacent to the ground, and the power exchanging assembly is arranged between the front suspension system and the rear suspension system, and the power exchanging assembly is the power exchanging assembly for the vehicle according to the embodiment of the first aspect of the invention.

According to some embodiments of the invention, the vehicle further comprises: and the electric drive axle is arranged on one side of the power conversion assembly, which is far away from the front suspension system.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic illustration of a vehicle according to an embodiment of the invention;

FIG. 2 is a schematic illustration of a power conversion assembly for a vehicle according to an embodiment of the present invention;

FIG. 3 is a schematic illustration of a power conversion assembly for a vehicle according to yet another embodiment of the present invention;

FIG. 4 is a schematic illustration of a power conversion assembly for a vehicle according to yet another embodiment of the present invention;

fig. 5 is a side view of a battery exchange assembly for a vehicle according to an embodiment of the invention.

Reference numerals:

100. a power conversion assembly;

1. a first frame; 11. a third subframe; 111. a frame body; 112. a first support bar; 113. a second support bar; 1131. a first support group; 1132. a second support group; 12. a fourth subframe; 13. a support column; 2. a second frame; 14. a first accommodation chamber; 21. a first subframe; 22. a second subframe; 221. a frame section; 2211. a first connection section; 2212. a second connection section; 2213. a third connecting section; 222. reinforcing ribs; 23. a groove; 24. a second accommodation chamber; 3. a battery box; 4. a controller;

200. a vehicle;

201. a frame; 202. a front suspension system; 203. a rear suspension system; 204. an electric drive axle.

Detailed Description

A power conversion assembly 100 for a vehicle 200 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1-5.

As shown in fig. 1 to 5, a power exchanging assembly 100 for a vehicle 200 according to an embodiment of the first aspect of the present invention includes a first frame 1, a second frame 2, and a battery box 3.

The first frame 1 has a first direction (e.g., up-down direction in fig. 2), a second direction (e.g., left-right direction in fig. 2), and a third direction (e.g., front-back direction in fig. 2) orthogonal to each other. The first frame 1 is detachably mounted on one side of the frame 201 in the first direction, the second frame 2 is mounted on one side of the first frame 1 in the first direction, the second frame 2 and the first frame 1 together define a first receiving chamber 14, the second frame 2 and the first frame 1 are adapted to be disposed under the frame 201 of the vehicle 200, and the second frame 2 is connected to the frame 201 and together define a second receiving chamber 24. The battery box 3 is provided in at least one of the first accommodation chamber 14 and the second accommodation chamber 24.

For example, in the example of fig. 1 to 5, the first frame 1 is detachably connected to the vehicle frame 201, and the second frame 2 is mounted above the first frame 1 and fixedly connected to the vehicle frame 201. Meanwhile, the second frame 2 is detachably connected with the first frame 1. Wherein the first frame 1 is connected with the vehicle frame 201 through a locking mechanism. By switching the locking mechanism to the unlocking position, the first frame 1 can be detached from the vehicle frame 201, then the battery box 3 and the first frame 1 which are fully charged can be detached and mounted on the battery box 3, and then the first frame 1 and the battery box 3 are fixed on the vehicle frame 201 by switching the locking mechanism to the locking position, so that the vehicle 200 can realize quick power change.

The first receiving chambers 14 are located on both sides of the second frame 2 in the second direction, and the second receiving chambers 24 are located on the lower side of the side members of the vehicle frame 201, i.e., the middle portion of the second frame 2. The battery box 3 may be provided only in the first accommodation chamber 14 (as shown in fig. 4); alternatively, the battery box 3 may be provided only in the second accommodation chamber 24 (as shown in fig. 3); alternatively, the battery case 3 may be provided in both the first accommodation chamber 14 and the second accommodation chamber 24 (as shown in fig. 2).

Different battery boxes 3 are arranged to meet different driving mileage requirements, and the vehicle 200 can have different dead weights, so that the weight of the goods loaded by the vehicle 200 is different. When the vehicle 200 mounts the battery box 3 only in the second accommodation chamber 24, the dead weight of the vehicle 200 is significantly lower than that of mounting two or three battery boxes 3, and thus the vehicle 200 reserves a part of the weight for the cargo, so that the amount of the cargo mounted on the vehicle 200 can be increased, and thus the income of the cargo can be increased.

Thus, by mounting the battery replacement assembly 100 on the underside of the frame 201, the center of gravity of the vehicle 200 is lowered, the vehicle 200 is made to travel more smoothly, and the safety of the vehicle 200 during driving is improved. Meanwhile, the battery box 3 is convenient to install and detach, when the electric quantity of the battery box 3 is insufficient in the running process of the vehicle 200, the battery box 3 can be detached to quickly complete the battery replacement, the time for replenishing the electric quantity of the vehicle 200 is shortened, the user can selectively install the battery box 3 of the vehicle 200 according to the running mileage, the running efficiency of the vehicle 200 is improved, the gravity center of the vehicle 200 is reduced, and the running safety of the vehicle 200 is improved.

According to the power exchanging assembly 100 for the vehicle 200, provided by the embodiment of the invention, the first frame 1, the second frame 2 and the battery box 3 are arranged, the first frame 1 is detachably connected with the vehicle frame 201, and the battery box 3 can be directly detached from the first accommodating cavity 14 for power exchanging. Therefore, compared with the traditional power conversion assembly for the vehicle, the time for supplementing the electric quantity for the vehicle 200 is shortened, different power conversion electric quantity selections can be performed, the running efficiency of the vehicle 200 is improved, the center of gravity of the vehicle 200 is lowered, and the safety of the vehicle 200 in the running process is improved.

According to some embodiments of the invention, the second frame 2 is formed with a recess 23, the recess 23 being adapted to receive the vehicle frame 201 to define a second receiving cavity 24, the recess 23 being located in a central portion of the second frame 2. Referring to fig. 2-5, the recess 23 is rectangular in shape, and the recess 23 extends along a length direction (e.g., a front-rear direction in fig. 2) of the vehicle frame 201. When the second frame 2 is mounted on the frame 201, the groove 23 and the frame 201 define the second accommodating cavity 24, which increases the accommodating space of the battery boxes 3, and thus the number of the battery boxes 3 mounted on the vehicle 200 can be increased, further the driving range of the vehicle 200 is increased, and the use experience of the user is improved.

According to some embodiments of the invention, the second frame 2 comprises a first subframe 21 and a plurality of second subframes 22. In the description of the present invention, "plurality" means two or more. The plurality of second sub-frames 22 are disposed on one side of the first sub-frame 21 in the first direction, the plurality of second sub-frames 22 are spaced apart in the second direction, the adjacent two second sub-frames 22 define a groove 23, and the second sub-frames 22 and the first frame 1 together define the first accommodation chamber 14.

As shown in fig. 2 to 5, the first sub-frame 21 is positioned at the lower side of the second sub-frame 22, and the first sub-frame 21 is connected to the first frame 1. The number of the second subframes 22 may be 2, and 2 second subframes 22 are respectively located at two sides of the second frame 2 in the second direction, and the groove 23 is located between 2 second subframes 22. The number of the first accommodating chambers 14 may be 2, and the 2 first accommodating chambers 14 are respectively located at two sides of the groove 23 in the second direction. The battery box 3 can be installed in each of the 2 first accommodation chambers 14 and the grooves 23. So set up, increased the space installation of battery box 3, and then increased the quantity of vehicle 200 mountable battery box 3, and provided multiple installation option for the user, can satisfy user's different travel demands, promoted user's use experience.

According to some embodiments of the present invention, the second sub-frame 22 comprises a plurality of frame segments 221, the plurality of frame segments 221 being spaced apart along the third direction, wherein the frame segments 221 comprise a first connection segment 2211, a second connection segment 2212 and a third connection segment 2213 connected to each other, the first connection segment 2211 and the third connection segment 2213 being connected to the first sub-frame 21, the first connection segment 2211 and the third connection segment 2213 extending along the first direction, the second connection segment 2212 extending along the second direction.

For example, in the example of fig. 2 to 4, the first connection section 2211 and the second connection section 2212 are formed in an L-shape, and the second connection section 2212 and the third connection section 2213 are formed in an L-shape. The first connection section 2211 and the third connection section 2213 are arranged in parallel. The first, second and third connection sections 2211, 2212 and 2213 define a first receiving cavity 14 together with the first frame 1. The plurality of frame sections 221 cooperate with the periphery of the battery box 3, define the position of the battery box 3, prevent that the battery box 3 from rocking in first accommodation chamber 14, avoid making the battery box 3 collide with, increased the life of battery box 3, ensure that the battery box 3 can normally work, the security when improving vehicle 200 and traveling.

According to some embodiments of the present invention, the second subframe 22 further includes a plurality of reinforcing ribs 222, the plurality of reinforcing ribs 222 are disposed on a side of the frame section 221 away from the first subframe 21, and the plurality of reinforcing ribs 222 are respectively disposed on two sides of the first subframe 21 in the second direction, and the reinforcing ribs 222 extend along the third direction. Referring to fig. 2 to 4, the number of the reinforcing ribs 222 may be 2, and 2 reinforcing ribs 222 are respectively disposed at one side of the second subframe 22 far from the groove 23 and pass through the connection points of the plurality of second connection sections 2212 and the third connection sections 2213. Therefore, the structural strength of the second subframe 22 is enhanced, the second subframe 22 is prevented from being broken, and the stability and the service life of the second frame 2 are improved.

According to some embodiments of the present invention, the first frame 1 includes a third subframe 11, a fourth subframe 12, and a plurality of support columns 13, the third subframe 11 and the fourth subframe 12 being spaced apart along the first direction, the support columns 13 being connected between the third subframe 11 and the fourth subframe 12, the plurality of support columns 13 being spaced apart along the circumferential direction of the first frame 1. As shown in fig. 2-4, the plane in which the third subframe 11 is located is parallel to the plane in which the fourth subframe 12 is located. The support column 13 extends in the first direction, supporting the third sub-frame 11. So set up, provide supporting platform for battery box 3, and the structure of first frame 1 is hollow out construction, has alleviateed the weight of first frame 1 to can make the dead weight of vehicle 200 alleviate, practice thrift production material simultaneously, reduced manufacturing cost.

According to some embodiments of the present invention, the third sub-frame 11 and the fourth sub-frame 12 are identical in structure, the third sub-frame 11 includes a frame body 111, a plurality of first support bars 112, and a plurality of second support bars 113, each of the plurality of first support bars 112 and the plurality of second support bars 113 is disposed within the frame body 111, the plurality of first support bars 112 are spaced apart in a second direction, the first support bars 112 extend in a third direction, the plurality of second support bars 113 are divided into a first support group 1131 and a second support group 1132, the plurality of second support bars 113 of the first support group 1131 are connected between the frame body 111 and the first support bars 112 and are spaced apart in the third direction, and the plurality of second support bars 113 of the second support group 1132 are connected between two adjacent first support bars 112 and are spaced apart in the third direction, the second support bars 113 extend in the second direction.

For example, in the example of fig. 2 to 4, the number of the first support bars 112 is 2, and 2 first support bars 112 are arranged at intervals in the width direction of the frame body 111. The first support group 1131 and the second support group 1132 are each arranged at intervals along the third direction. When the battery box 3 is installed, the first support rod 112 and the second support rod 113 can provide support force for the battery box 3. The first support bar 112 includes 6 second support bars 113, and the second support bar 113 includes 6 second support bars 113. The pressure of the battery box 3 can be dispersed by the plurality of second support rods 113, the supporting force to the battery box 3 is increased, the firmness of the first frame 1 and the stability of the battery box 3 are improved, the battery box 3 can work normally, and meanwhile, the production cost is reduced.

According to some embodiments of the present invention, the power conversion assembly 100 for the vehicle 200 further includes a controller 4, the controller 4 being electrically connected with the battery box 3, the controller 4 having a power conversion control system and a battery management system. Referring to fig. 1 to 5, the controller 4 is located at one side of the first frame 1 in the third direction, so that the controller 4 is connected with the battery box 3. The controller 4 is a core control device for controlling the start, operation, advance and retreat, speed, stop of the motor of the vehicle 200, and other electronic devices of the vehicle 200. Wherein the functions of the controller 4 are integrated into a battery management system, which can realize the state detection of the power change operation control and power change assembly 100 and perform fault alarm, thereby enabling the battery box 3 to normally complete the work with the motor of the vehicle 200.

As shown in fig. 1, a vehicle 200 according to an embodiment of the second aspect of the present invention includes a frame 201, a front suspension system 202, a rear suspension system 203, and a power conversion assembly 100.

Specifically, front suspension system 202 and rear suspension system 203 are each provided on frame 201, and front suspension system 202 and rear suspension system 203 are spaced apart along the length of frame 201. The power exchanging assembly 100 is disposed on a side of the frame 201 adjacent to the ground, and the power exchanging assembly 100 is disposed between the front suspension system 202 and the rear suspension system 203, and the power exchanging assembly 100 is the power exchanging assembly 100 for the vehicle 200 according to the above-described first aspect of the present invention.

For example, in the example of fig. 1-1, the front suspension system 202 and the rear suspension system 203 are respectively located at two sides of the power conversion assembly 100 in the third direction, so that a sufficient installation space is provided for the power conversion assembly 100, and the structural arrangement of the vehicle 200 is more reasonable.

According to the vehicle 200 of the embodiment of the present invention, by adopting the above-described power exchanging assembly 100, the vehicle 200 can select the appropriate number of battery boxes 3 according to the mileage of the departure place and the destination and the distance of the intermediate power exchanging station. Therefore, different driving requirements can be met, and when the number of the battery boxes 3 is small, the weight of the vehicle 200 is reduced, so that the weight of vehicle-mounted cargoes can be increased, freight income is increased, and the market application of new energy heavy trucks is facilitated.

According to some embodiments of the invention, the vehicle 200 further comprises an electric drive axle 204, the electric drive axle 204 being provided on a side of the power conversion assembly 100 remote from the front suspension system 202. Referring to fig. 1, an electric drive axle 204 is provided below the frame 201 and adjacent to the rear suspension system 203. The electric drive axle 204 is generally comprised of a final drive, differential, wheel drive, axle housing, and the like. The electric drive axle 204 is an electromechanical integrated drive system designed for an electric automobile, and has the advantages of high integration degree, small volume, low energy consumption and the like. As a core component of an electric automobile, the performance of the electric automobile directly affects the dynamic performance and the economical efficiency of the electric automobile. Therefore, the space of the frame 201 occupied by the electric drive axle 204 is reduced, the space at the bottom of the frame 201 is reserved for replacing the electric assembly 100, the integration level of the structure of the vehicle 200 is improved, and the space utilization rate of the frame 201 is improved.

Other constructions and operations of the vehicle 200 according to embodiments of the invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "bottom," "inner," "outer," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A power conversion assembly for a vehicle, comprising:

a first frame having a first direction, a second direction, and a third direction orthogonal to each other, the first frame being detachably mounted on one side of a frame of a vehicle in the first direction;

the second frame is detachably arranged on one side of the first frame in the first direction, the second frame and the first frame jointly define a first accommodating cavity, the second frame and the first frame are suitable for being arranged below the frame, and the second frame is connected with the frame and jointly defines a second accommodating cavity;

the battery box is arranged in at least one of the first accommodating cavity and the second accommodating cavity.

2. The power conversion assembly for a vehicle of claim 1, wherein the second frame has a recess formed therein, the recess being adapted to mount the frame to define the second receiving cavity, the recess being located in a middle portion of the second frame.

3. The power conversion assembly for a vehicle according to claim 2, wherein the second frame includes:

a first subframe;

the first accommodating cavity is formed by the first sub-frames, the second sub-frames and the first accommodating cavity, wherein the first sub-frames are arranged on one side of the first sub-frames in the first direction, the second sub-frames are spaced apart in the second direction, the grooves are defined by two adjacent second sub-frames, and the first accommodating cavity is defined by the second sub-frames and the first frame.

4. A power conversion assembly for a vehicle according to claim 3, wherein said second subframe includes a plurality of frame segments, a plurality of said frame segments being spaced apart along said third direction,

wherein, the frame section includes first linkage segment, second linkage segment and the third linkage segment that links to each other, first linkage segment with the third linkage segment with first subframe links to each other, first linkage segment with the third linkage segment extends along first direction, the second linkage segment extends along the second direction.

5. The power conversion assembly for a vehicle according to claim 4, wherein the second subframe further comprises a plurality of reinforcing ribs, a plurality of the reinforcing ribs are provided on a side of the frame section away from the first subframe, and the plurality of reinforcing ribs are respectively located on both sides of the first subframe in the second direction, and the reinforcing ribs extend in the third direction.

6. The power conversion assembly for a vehicle according to any one of claims 1-5, wherein the first frame includes a third subframe, a fourth subframe, and a plurality of support columns, the third subframe and the fourth subframe being spaced apart along the first direction, the support columns being connected between the third subframe and the fourth subframe, the plurality of support columns being spaced apart along a circumferential direction of the first frame.

7. The power conversion assembly for a vehicle according to claim 6, wherein the third subframe and the fourth subframe are identical in structure,

the third subframe includes a frame body, a plurality of first support bars and a plurality of second support bars, the plurality of first support bars and the plurality of second support bars are all disposed in the frame body, the plurality of first support bars are spaced apart along the second direction, the first support bars extend along the third direction,

the plurality of second support bars are divided into a first support group and a second support group, the plurality of second support bars of the first support group are connected between the frame body and the first support bars and are spaced apart along the third direction, the plurality of second support bars of the second support group are connected between two adjacent first support bars and are spaced apart along the third direction, and the second support bars extend along the second direction.

8. The power conversion assembly for a vehicle according to claim 1, further comprising:

and the controller is electrically connected with the battery box and is provided with a battery replacement control system and a battery management system.

9. A vehicle, characterized by comprising:

a frame;

a front suspension system and a rear suspension system, both of which are provided on the frame, the front suspension system and the rear suspension system being spaced apart along a length direction of the frame

A power conversion assembly provided on a side of the frame adjacent to the ground, and located between the front suspension system and the rear suspension system, the power conversion assembly being a power conversion assembly for a vehicle according to any one of claims 1 to 8.

10. The vehicle of claim 9, further comprising:

and the electric drive axle is arranged on one side of the power conversion assembly, which is far away from the front suspension system.