Vehicle-mounted power battery assembly and new energy vehicle

Abstract

The application provides a vehicle-mounted power battery assembly and a new energy vehicle, wherein the vehicle-mounted power battery assembly comprises a vehicle-mounted power battery and a quick-change frame, the quick-change frame comprises a first group of opposite sides and a second group of opposite sides, the first group of opposite sides is respectively provided with a turned edge, each turned edge is provided with an outwardly expanded threaded plate, one of the second group of opposite sides of the quick-change frame is provided with an electric connector, the first group of opposite sides has a first end close to the electric connector and a second end away from the electric connector, a reinforcing support is arranged between the turned edge and the first group of opposite sides of the quick-change frame at the second end of the first group of opposite sides, the second end of the first group of opposite sides is provided with a third threaded hole, the third threaded hole is used for being screwed with a vehicle body, the side of the second end of the first group of opposite sides away from the reinforcing support is provided with a reinforcing sleeve, the reinforcing sleeve is arranged on the turned edge, and the reinforcing sleeve has a through hole corresponding to the third threaded hole. The vehicle-mounted power battery can be firmly mounted on the quick-change frame, and the driving comfort is improved.

Description

[0001] This application is a divisional application of application number 201811190713.3, entitled "On-board power battery assembly and new energy vehicle". Technical Field

[0002] This invention relates to the field of vehicle batteries, and more specifically, to vehicle power battery packs and new energy vehicles. Background Technology

[0003] Onboard power batteries are an indispensable and crucial component of new energy vehicles. During the battery swapping process, the quick-swap battery pack needs to be guided into the quick-swap frame under the vehicle floor (at this time, a gap must be left between the positioning block and the quick-swap frame; otherwise, the quick-swap battery pack will jam, preventing normal battery swapping). While the vehicle is in motion, the quick-swap battery pack must remain stable and fixed on the quick-swap frame, without any lateral movement (a gap will cause the battery pack to move laterally, resulting in abnormal noise between the battery pack and the quick-swap frame, affecting the driving experience). Currently, the guiding positioning block uses a pre-compression structure. During the battery swapping process, the guiding block constantly rubs against the quick-swap frame (the pre-compression block inside the positioning block is compressed). Under normal driving conditions, the pre-compression of the guiding block ensures that the quick-swap battery pack does not shift on the quick-swap frame. However, under high speeds and continuous sharp turns, the pre-compression of the positioning block may be insufficient, potentially causing the quick-swap battery pack to shift on the quick-swap frame and generate abnormal noise. In addition, the steel structure locking mechanism generates abnormal noise due to friction during vehicle operation, reducing driving comfort; moreover, the steel structure locking mechanism requires maintenance (oiling, lubrication, etc.) during use, increasing maintenance costs and incurring certain maintenance costs for the driver.

[0004] In view of this, the present invention provides an on-board power battery assembly and a new energy vehicle. Summary of the Invention

[0005] In view of the problems in the prior art, the purpose of this invention is to provide an on-board power battery assembly and a new energy vehicle, which overcomes the difficulties of the prior art, can firmly install the on-board power battery on the quick-change frame, and can prevent the on-board power battery from moving within the quick-change frame during vehicle operation, and can reduce abnormal noise caused by friction during vehicle operation, reduce maintenance costs, and improve driving comfort.

[0006] This invention provides an on-board power battery assembly, characterized in that it comprises: an on-board power battery and a quick-swap frame, wherein the quick-swap frame includes a first set of opposite sides and a second set of opposite sides.

[0007] The first set of opposite sides are each provided with a flange, and each flange is provided with an outwardly expanding screw plate. One of the second set of opposite sides of the quick-change frame is provided with an electrical connector.

[0008] The first set of opposite sides has a first end close to the electrical connector and a second end away from the electrical connector. At the second end of the first set of opposite sides, a reinforcing bracket is provided between the flange and the first set of opposite sides of the quick-change frame. The second end of the first set of opposite sides is provided with a third screw hole for screwing into the vehicle body. A reinforcing sleeve is provided on the side of the second end of the first set of opposite sides away from the reinforcing bracket. The reinforcing sleeve is disposed on the flange. The reinforcing sleeve (25) has a through hole adapted to the third screw hole.

[0009] Optionally, the inner sides of the first set of opposite sides of the quick-change frame are provided with:

[0010] The first locking assembly includes a locking member and at least one limiting member that cooperates with the locking member to limit the connection of the vehicle power battery.

[0011] The second locking assembly includes at least one limiting member and a locking member that cooperates with the limiting member to connect the vehicle power battery; wherein, both the first locking assembly and the second locking assembly include a limiting member with a limiting groove.

[0012] Optionally, the inner side of the first set of opposite sides of the quick-change frame is further provided with:

[0013] Support points are used to provide support for the on-board power battery, and each support point includes a limiting member with a limiting groove.

[0014] Optionally, the corners of the first set of opposite sides with flanges are also provided with multiple corner bracing.

[0015] Optionally, the flange is provided with a tension rib extending along the extension direction of the flange.

[0016] Optionally, a reinforcing bracket is provided at the second screw hole between the first set of opposite sides of the outwardly expanding screw plate and the quick-change frame. The reinforcing bracket is located between adjacent support points, and the adjacent reinforcing brackets have a symmetrical structure.

[0017] Optionally, the surfaces of the first and second sets of opposite sides of the quick-change frame are partially provided with X-shaped stamping grooves.

[0018] Optionally, at least two outwardly flared shoulder platforms for connecting the vehicle body are provided on the outer sides of the second set of opposite sides, and the outwardly flared shoulder platforms are provided with first screw holes.

[0019] Optionally, the inner side of the first set of opposite sides of the quick-change frame is further provided with a sensor detection element for connecting the sensor wiring harness.

[0020] Optionally, the second locking assembly further includes at least one locking element that cooperates with the limiting element.

[0021] The present invention also provides a new energy vehicle, including: the on-board power battery assembly as described above.

[0022] In view of this, the vehicle-mounted power battery assembly and new energy vehicle of the present invention can securely install the vehicle-mounted power battery on the quick-change frame, and can prevent the vehicle-mounted power battery from moving within the quick-change frame during vehicle operation, reduce abnormal noise caused by friction during vehicle operation, reduce maintenance costs, and improve driving comfort. Attached Figure Description

[0023] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0024] Figure 1 This is a three-dimensional schematic diagram of the vehicle-mounted power battery assembly of the present invention;

[0025] Figure 2 This is a three-dimensional schematic diagram of the quick-change frame in this invention;

[0026] Figure 3 This is a schematic diagram of a pair of sides of the quick-change frame in this invention, excluding the first and second sides.

[0027] Figure 4 This is a schematic diagram of the first locking component of the quick-change frame in this invention;

[0028] Figure 5 This is an enlarged view of the limiting and locking components of the quick-change frame in this invention;

[0029] Figure 6 This is an enlarged view of the locking shaft in this invention;

[0030] Figure 7 This is a schematic diagram of the first locking component of the quick-change frame in this invention when locked;

[0031] Figure 8 This is an enlarged view of the second locking component in this invention;

[0032] Figure 9 This is an enlarged view of the sensor detection component of the quick-change frame in this invention;

[0033] Figure 10 This is a side view of a pair of sides of the quick-change frame in this invention, excluding the first and second sides.

[0034] Figure 11 This is an enlarged view of the externally expanded screw plate in this invention;

[0035] Figure 12 This is an enlarged view of the threaded plate at the third threaded hole in this invention;

[0036] Figure 13 This is a cross-sectional view of the reinforcing sleeve and the third screw hole in this invention;

[0037] Figure 14 This is an enlarged view of the first end of the quick-change frame in this invention;

[0038] Figure 15 This is an enlarged view of the second end of the quick-change frame in this invention; and

[0039] Figure 16 This is a schematic diagram of the module connection of the new energy vehicle of the present invention.

[0040] Figure Labels

[0041] 1. Vehicle power battery

[0042] 2. Quick-change frame

[0043] 201 First Locking Component

[0044] 202 Second Locking Component

[0045] 203 Support points

[0046] 204 connector

[0047] 205 Limiting component

[0048] 206 Flip-edge

[0049] 207 Locking components

[0050] 209 Sensor Detection Components

[0051] 210 Sensor harness

[0052] 211 Angle steel

[0053] 212 Tensioner

[0054] 214 X-type stamping groove

[0055] 215 Locking parts

[0056] 21 Third screw hole

[0057] 22 Second screw hole

[0058] 23 First screw hole

[0059] 24 Electrical connectors

[0060] 25 Reinforced Sleeve

[0061] 26 Expanded bolt plate

[0062] 27 Expanded shoulder

[0063] 28 Reinforced support

[0064] 10. On-board power battery pack

[0065] 30 New energy vehicles

[0066] 31 Electric motor

[0067] 40 locking shaft

[0068] A First Side

[0069] B Second side Detailed Implementation

[0070] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0071] Figure 1 This is a three-dimensional schematic diagram of the vehicle-mounted power battery assembly of the present invention. Figure 2 This is a three-dimensional schematic diagram of the quick-change frame in this invention. Figure 3 This is a schematic diagram of a pair of sides of the quick-change frame in this invention, excluding the first and second sides. Figure 4 This is a schematic diagram of the first locking component of the quick-change frame in this invention. Figure 5 This is an enlarged view of the limiting component of the quick-change frame in this invention. Figure 6 This is an enlarged view of the locking component in this invention. Figure 7 This is a schematic diagram of the first locking component of the quick-change frame in this invention when locked. Figure 8 This is an enlarged view of the second locking component in this invention. Figure 9 This is an enlarged view of the sensor detection component of the quick-change frame in this invention. Figure 10 This is a side view of a pair of sides of the quick-change frame in this invention, excluding the first and second sides. Figure 11 This is an enlarged view of the externally expanded screw plate in this invention. Figure 12 This is an enlarged view of the screw plate at the third screw hole in this invention. Figure 13 This is a cross-sectional view of the reinforcing sleeve and the third screw hole in this invention. Figure 14 This is an enlarged view of the first end of the quick-change frame in this invention. Figure 15 This is an enlarged view of the second end of the quick-change frame in this invention. (See image below.) Figures 1 to 15As shown, the vehicle-mounted power battery assembly 10 of the present invention includes: a vehicle-mounted power battery 1 and a quick-change frame 2. The quick-change frame 2 includes a first set of opposite sides and a second set of opposite sides. A first locking assembly 201, a second locking assembly 202, and a support attachment point 203 are provided on the inner side of the first set of opposite sides of the quick-change frame 2. The first locking assembly 201 includes a locking member 207 and at least one limiting member 205 cooperating with the locking member 207 to limit the connection of the vehicle-mounted power battery 1. The second locking assembly 202 includes at least one limiting member 205 to connect the vehicle-mounted power battery 1. The support attachment point 203 is used to provide support to the vehicle-mounted power battery 1.

[0072] Specifically, the first locking assembly 201 precisely locks the vehicle-mounted power battery 1 (in cooperation with the locking member 207) onto the quick-change frame 2. When the first locking assembly 201 includes multiple limiting members 205, these limiting members 205 can further limit the vehicle-mounted power battery 1 in the first set of opposite side extension directions via the connecting member 204. The second locking assembly 202 is used for coarse locking, i.e., connecting the vehicle-mounted power battery 1, but the vehicle-mounted power battery 1 can move within a very small gap range. The second locking assembly 202 only operates when the first locking assembly 201 fails, and the second locking assembly 202 is used to ensure that the vehicle-mounted power battery 1 does not fall off the quick-change frame 2. Considering the weight of the vehicle-mounted power battery 1 and the rigidity requirements during installation, the support attachment point 203 is only used for support. Therefore, the vehicle-mounted power battery assembly of the present invention securely mounts the vehicle-mounted power battery onto the quick-change frame through the first locking component 201, the second locking component 202 and the support mounting point 203, and can prevent the vehicle-mounted power battery from moving within the quick-change frame while the vehicle is in motion, reduce abnormal noise caused by friction while the vehicle is in motion, reduce maintenance costs and improve driving comfort.

[0073] Specifically, the number and position of the first locking component 201, the second locking component 202, and the support attachment points 203 can be adjusted according to the weight of the vehicle-mounted power battery 1. This invention, through double locking, ensures the vehicle-mounted power battery 1 is positioned and prevents it from falling off the quick-change frame 2. Furthermore, the distributed multiple support attachment points 203 disperse the stress on the vehicle-mounted power battery 1, facilitating installation and improving the stability of the vehicle-mounted power battery 1 within the quick-change frame 2. In a preferred embodiment, the first set of opposite sides of the quick-change frame 2 each includes a first locking component 201, a second locking component 202, and four support attachment points 203. The first locking component 201 includes three limiting members 205. The second locking component 202 includes one limiting member 205. The limiting members 205 of the first locking component 201 and the second locking component 202 also serve to support the vehicle-mounted power battery 1. The above embodiments are merely illustrative and are not intended to limit the invention.

[0074] In one specific embodiment of the present invention, the outer side of the vehicle-mounted power battery 1 has a locking part, which may be, for example, a locking shaft 40. The locking shaft 40, in cooperation with the first locking assembly 201, the second locking assembly 202, and the support attachment point 203, achieves support, locking, and limiting of the vehicle-mounted power battery 1. Specifically, the first locking assembly 201, the second locking assembly 202, and the support attachment point 203 all include a limiting member 205 with a limiting groove. The first locking assembly 201 includes the limiting member 205 and a locking member 207 that cooperates with the limiting member 205. The locking member 207 can move along... Figure 5 The lock shaft 40 is rotated in the direction of the dashed arrow to enter the limiting groove of the limiting member 205. When the lock shaft 40 enters the limiting groove of the limiting member 205, the locking member 207 returns to its original position. Figure 5 The position shown defines the locking shaft 40 between the locking member 207 and the inner wall of the limiting groove (e.g., Figure 7 The second locking assembly 202 includes a limiting member 205 and a locking member 215 that cooperates with the limiting member 205. The locking member 215 can be a spring-loaded locking member that achieves rotation and locking. Similar to the first locking assembly 201, the locking member 215 and the limiting member 205 confine the locking shaft 40 between the locking member 215 and the inner wall of the limiting groove. Furthermore, the limiting space between the locking member 215 and the inner wall of the limiting groove is larger than the limiting space between the locking member 207 and the inner wall of the limiting groove, so that the first locking assembly 201 achieves precise limiting, the second locking assembly 202 achieves coarse limiting, and the limiting function of the second locking assembly 202 only applies when the first locking assembly 201 fails. The support attachment point 203 may only include the limiting member 205, providing support to the vehicle-mounted power battery 1 by providing support to the locking shaft 40 within the limiting groove. The above is merely an illustrative description of embodiments of the present invention, and the present invention is not limited thereto. Other structures of the second locking component 202 and the support hanging point 203 are also within the protection scope of the present invention.

[0075] In a preferred embodiment, the first set of opposite sides are each provided with a flange 206, and each flange 206 is provided with an outwardly expanding screw plate 26. The outwardly expanding screw plate 26 is provided with a plurality of second screw holes 22. The second screw holes 22 are used to screw into the vehicle body to securely connect the quick-change frame 2 to the vehicle body, thereby ensuring that the on-board power battery 1 connected to the quick-change frame 2 can also be securely connected to the vehicle body, reducing shaking and noise.

[0076] In a preferred embodiment, the corners of the first set of opposite sides with flanges 206 are further provided with multiple corner ribs 211. This increases the diagonal strength of the first set of opposite sides, ensures the angle between the flange 206 and the first set of opposite sides (preferably a right angle), prevents changes in the angle between the flange 206 and the first set of opposite sides during installation and operation, and ensures the consistency of the angle between the flange 206 and the first set of opposite sides in the extension direction of the flange 206.

[0077] In a preferred embodiment, the flange 206 is provided with tension ribs 212 extending along the extension direction of the flange 206. The tension ribs 212 can enhance the local material ductility of the flange 206 material, improve local stiffness, and eliminate stress caused by local deformation.

[0078] In a preferred embodiment, the surfaces of the first and second sets of opposite edges of the quick-change frame 2 are partially provided with X-shaped stamping grooves 214. The X-shaped stamping grooves enhance the surface strength of the quick-change frame 2 with a three-dimensional shape, avoiding the drawback of low rigidity in a planar quick-change frame 2. The surface of the outwardly expanding threaded plate 26 is also partially provided with X-shaped stamping grooves 214. These X-shaped stamping grooves enhance the surface strength of the outwardly expanding threaded plate 26 with a three-dimensional shape, avoiding the drawback of low rigidity in a planar outwardly expanding threaded plate 26.

[0079] In a preferred embodiment, a reinforcing bracket 28 is provided between the extended bolt plate 26 and the first set of opposite sides of the quick-change frame 2. The reinforcing bracket 28 supports the extended bolt plate 26 via the quick-change frame 2, strengthening the extended bolt plate 26, especially ensuring its strength when it bears the weight of the on-board power battery after being bolted to the vehicle chassis. In one specific implementation, the reinforcing bracket 28 is positioned corresponding to the second bolt hole 22, specifically improving the strength of the fixing point between the extended bolt plate 26 and the vehicle chassis. In another specific implementation, adjacent reinforcing brackets 28 have a symmetrical structure to reduce product variety and facilitate production. In yet another specific implementation, the external shape of the reinforcing bracket 28 avoids bolt holes and other components on the two mounting surfaces to minimize mutual interference.

[0080] In a preferred embodiment, one of the second set of opposite sides of the quick-change frame 2 is provided with an electrical connector 24. The first set of opposite sides has a first end close to the electrical connector 24 and a second end away from the electrical connector 24. At the second end of the first set of opposite sides, a reinforcing bracket 28 is provided between the flange 206 and the first set of opposite sides of the quick-change frame 2. The reinforcing bracket 28 supports the flange 206 with the help of the quick-change frame 2, thereby strengthening the flange 206, especially when the flange 206 is screwed to the chassis and has to bear the weight of the vehicle's power battery, ensuring the strength of the support.

[0081] In a preferred embodiment, the second end of the first set of opposite sides is provided with a third screw hole 21, and the side of the second end of the first set of opposite sides facing away from the reinforcing bracket 28 is provided with a reinforcing sleeve 25. The reinforcing sleeve has a through hole adapted to the third screw hole 21. The third screw hole 21 is used to screw onto the vehicle body to securely connect the quick-change frame 2 to the vehicle body, thereby ensuring that the on-board power battery 1 connected to the quick-change frame 2 can also be securely connected to the vehicle body, reducing shaking and noise. The reinforcing sleeve 25 is used to strengthen the rigidity of the third screw hole 21, preventing deformation of the third screw hole 21 due to lack of support in the cavity when the bolts are tightened. In a specific implementation, the reinforcing bracket 28 is provided corresponding to the third screw hole 21 to specifically improve the strength of the fixing point between the outer flange 206 and the vehicle chassis.

[0082] In a preferred embodiment, at least two outwardly flared shoulder platforms 27 for connecting to the vehicle body are provided on the outer sides of the second set of opposite sides, and the outwardly flared shoulder platforms 27 are provided with first screw holes 23. The first screw holes 23 are used to screw into the vehicle body to securely connect the quick-change frame 2 to the vehicle body, thereby ensuring that the on-board power battery 1 connected to the quick-change frame 2 can also be securely connected to the vehicle body, reducing shaking and noise.

[0083] In a preferred embodiment, the inner side of the first set of opposite sides of the quick-change frame 2 is further provided with a sensor detection element 209 for connecting the sensor wiring harness 210. Specifically, the vehicle power battery 1 is provided with an inductive magnet. When the vehicle power battery 1 is displaced, the magnet senses the sensor detection element 209 so that the sensor detection element 209 outputs a sensing signal indicating that the vehicle power battery 1 has been displaced.

[0084] In a preferred embodiment, the vehicle-mounted power battery 1 is embedded in the frame area of ​​the quick-change frame 2, so that the quick-change frame 2 can stably fix the vehicle-mounted power battery 1 and ensure that the mounting components are detachably connected to the outer periphery of the vehicle-mounted power battery 1.

[0085] In a preferred embodiment, the quick-change frame 2 is formed by sheet metal stamping followed by welding, achieving a lightweight design. The quick-change frame 2 is manufactured using multi-stage stamping to achieve the aforementioned structures such as the flange 206, corner ribs 211, tension ribs 212, and X-shaped stamping grooves 214. Therefore, by stamping the quick-change bracket, advantages such as high processing consistency, high precision, and low production cost are achieved.

[0086] Figure 16 This is a schematic diagram of the module connections for the new energy vehicle of the present invention. For example... Figure 16As shown, the present invention also provides a new energy vehicle 30, including: an on-board power battery assembly 10 as described above, a battery swapping mechanism assembly detachably connected to the body of the new energy vehicle 30, and an electrical connector 24 connected to the electric motor 31 of the new energy vehicle. This allows the on-board power battery assembly of the present invention to be applied to any existing electric vehicle or new energy vehicle. The features and advantages of the on-board power battery assembly are as described above and will not be repeated here.

[0087] In summary, the purpose of this invention is to provide an on-board power battery assembly and a new energy vehicle, which can securely install the on-board power battery on a quick-change frame and prevent the on-board power battery from moving within the quick-change frame during vehicle operation, thereby reducing abnormal noise caused by friction during vehicle operation, reducing maintenance costs, and improving driving comfort.

[0088] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A vehicle-mounted power battery assembly, characterized in that, include: The vehicle-mounted power battery (1) and the quick-change frame (2), wherein the quick-change frame (2) includes a first set of opposite sides and a second set of opposite sides. The first set of opposite sides are each provided with a flange (206), and each flange (206) is provided with an outwardly expanding screw plate (26). One of the second set of opposite sides of the quick-change frame (2) is provided with an electrical connector (24). The first set of opposite sides has a first end close to the electrical connector (24) and a second end away from the electrical connector (24). At the second end of the first set of opposite sides, a plurality of reinforcing brackets (28) are provided at the second screw hole (22) between the outward expansion screw plate (26) and the first set of opposite sides of the quick-change frame (2). The reinforcing brackets (28) are provided corresponding to the second screw hole (22). The second end of the first set of opposite sides is provided with a third screw hole (21). The third screw hole (21) is used for screwing with the vehicle body. A reinforcing sleeve (25) is provided on the side of the second end of the first set of opposite sides away from the reinforcing bracket (28). The reinforcing sleeve (25) is provided on the flange (206). The reinforcing sleeve (25) has a through hole adapted to the third screw hole (21).

2. The vehicle-mounted power battery assembly according to claim 1, characterized in that: The inner side of the first set of opposite sides of the quick-change frame (2) is provided with: The first locking assembly (201) includes a locking member (207) and at least one limiting member (205) that cooperates with the locking member (207) to limit the connection of the vehicle power battery (1); The second locking assembly (202) includes at least one limiting member (205) and a locking member (215) cooperating with the limiting member (205) to connect the vehicle power battery (1); wherein the first locking assembly (201) and the second locking assembly (202) both include a limiting member (205) with a limiting groove.

3. The vehicle-mounted power battery assembly according to claim 1, characterized in that: The inner side of the first set of opposite sides of the quick-change frame (2) is also provided with: Multiple support points (203) are provided to support the on-board power battery (1), and each support point (203) includes a limiting member (205) with a limiting groove.

4. The vehicle-mounted power battery assembly according to claim 1, characterized in that: The corners of the first group with flanges (206) on opposite sides are also provided with multiple corner ribs (211).

5. The on-board power battery assembly according to claim 1, characterized in that: The flange (206) is provided with a tension rib (212) extending along the extension direction of the flange (206).

6. The on-board power battery assembly according to claim 3, characterized in that: The reinforcing bracket (28) is located between adjacent support points (203), and the adjacent reinforcing brackets (28) have a symmetrical structure.

7. The on-board power battery assembly according to any one of claims 1 to 6, characterized in that: The quick-change frame (2) has X-shaped stamping grooves (214) on the surface of the first set of opposite sides and the second set of opposite sides.

8. The on-board power battery assembly according to any one of claims 1 to 6, characterized in that: The second set of opposite sides are provided with at least two outwardly flared shoulder platforms (27) for connecting the vehicle body, and the outwardly flared shoulder platforms (27) are provided with first screw holes (23).

9. The on-board power battery assembly according to any one of claims 1 to 6, characterized in that: The inner side of the first set of opposite sides of the quick-change frame (2) is also provided with a sensor detection element (209) for connecting the sensor harness (210).

10. A new energy vehicle, characterized in that, include: The vehicle-mounted power battery assembly as described in any one of claims 1 to 9.

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