Battery protection frame structure and vehicle

Abstract

The present application discloses a battery protection frame structure and a vehicle. The battery protection frame structure includes a shell and a mounting frame. The shell has an open structure. The shell includes a receiving cavity for receiving a battery. The shell forms a limiting groove. The limiting groove includes an opening toward one side of the receiving cavity and a bottom wall away from one side of the receiving cavity. The limiting groove is used to cooperate with the battery to limit the battery. The mounting frame is fixedly connected to the shell and is used to realize the installation and fixation of the shell and the vehicle. The battery protection frame structure provided by the present application can reduce the probability of battery damage.

Description

Technical Field

[0001] The present application belongs to the field of vehicles, and in particular relates to a battery protection frame structure and a vehicle. Background Art

[0002] The vehicle includes a 12V battery for power supply. In current vehicles, the battery has no protection measures. When the vehicle is hit, the battery is easily damaged by the impact force. Utility Model Content

[0003] An embodiment of the present application provides a battery protection frame structure and a vehicle. The battery protection frame structure provided by the present application can reduce the probability of battery damage.

[0004] The first aspect of the present application provides a battery protection frame structure, including:

[0005] A housing, wherein the housing has an open structure, the housing includes a receiving cavity, the receiving cavity is used to receive a battery, the housing forms a limiting groove, the limiting groove includes an opening toward one side of the receiving cavity and a bottom wall away from one side of the receiving cavity, and the limiting groove is used to cooperate with the battery to limit the battery;

[0006] The mounting frame is fixedly connected to the shell and is used to achieve the installation and fixation of the shell and the vehicle.

[0007] According to an implementation scheme of the first aspect of the present application, the shell includes a first protective plate, a second protective plate and a third protective plate, the number of the first protective plates is two and they are arranged opposite to each other along the first direction, the first protective plate includes a first end and a second end arranged along the second direction, the first direction is perpendicular to the second direction, the second protective plate is respectively fixed to the first ends of the two first protective plates, the third protective plate is respectively fixed to the second ends of the two first protective plates, the accommodating cavity is formed between the first protective plate, the second protective plate and the third protective plate, and the limiting groove is formed on the third protective plate.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the second protective plate includes a first surface, a second surface and a first supporting portion formed between the first surface and the second surface, and a first hollow space is formed between adjacent first supporting portions.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the third protective plate includes a third surface and a fourth surface arranged opposite to each other and a second supporting portion formed between the third surface and the fourth surface, and a second hollow space is formed between adjacent second supporting portions.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the first protective plate is a solid structure.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the accommodating cavity includes a first opening and a second opening arranged along a third direction, the first opening is formed between the first protective plate, the second protective plate and the third protective plate, the second protective plate includes a planar portion and a curved portion, the curved portion is bent in a direction close to the accommodating cavity, the second opening is formed between the first protective plate and the second protective plate, the orthographic projection area of ​​the first opening in the third direction is smaller than the orthographic projection area of ​​the second opening in the third direction, and the third direction, the second direction and the first direction are perpendicular to each other.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the shell and the mounting frame are bonded and fixed or integrally formed.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the first protective plate includes a first side, a second side and a third side, the first side is parallel to the second direction, the second side is parallel to the third direction and is connected to the first side, the third side includes a straight portion and an arc portion, and the two ends of the third side are respectively connected to the first side and the second side, and also includes a supporting structure fixed to the first protective plate, the projection shape of the supporting structure in the first direction is a right triangle, and a right-angled side of the supporting structure is connected to the first side, and the third direction, the second direction, and the first direction are perpendicular to each other.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the support structure and the first protective plate are integrally formed.

[0015] An embodiment of the second aspect of the present application further provides a vehicle, comprising any one of the battery protection frame structures provided in the first aspect of the present application.

[0016] According to an implementation scheme of the second aspect of the present application, it includes a rear panel assembly, a rear floor assembly, a rear wheel cover panel assembly and a battery, the rear floor assembly includes a first area and a second area arranged around the first area, the first area is arranged opposite to the luggage compartment, the battery protection frame structure is installed in the area surrounded by the rear panel assembly, the first area and the rear wheel cover panel assembly, and the battery protection frame structure is fixed to the rear floor assembly through the mounting frame; the battery is installed in the battery protection frame structure, one side of the battery is clamped with the limiting groove, and the other side is fixed to the rear floor assembly through a bracket.

[0017] The battery protection frame structure provided in the present application includes a shell and a mounting frame, the shell is used to accommodate and protect the battery, and the mounting frame is used to install and fix the shell to other components (such as the body of the vehicle). The shell includes a housing to accommodate the battery. The shell forms a limiting groove, the limiting groove includes an opening facing one side of the housing cavity and a bottom wall away from the side of the housing cavity, and the limiting groove is used to cooperate with the battery to limit the battery. The shell can be installed on the body through the mounting frame. On the one hand, the battery protection frame structure can absorb stress when the collision is small, thereby protecting the battery and improving the yield of the battery; on the other hand, it can realize indirect fixation between the battery and the body, reducing the fixing strength of the direct fixing part of the battery and the body, so that when the collision force is large, the battery falls off from the shell with an open structure and slides a displacement to the front of the vehicle. The collision stress is absorbed by the battery protection frame structure and consumed during the sliding process after the battery falls off, so that the battery is not easily damaged, that is, the battery function is protected before and after the collision. The battery protection frame structure provided in the present application can solve the safety problem of easy damage to the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of a battery protection frame structure provided in an embodiment of the present application;

[0020] Figure 2 It is a structural schematic diagram of a battery protection frame structure provided in an embodiment of the present application;

[0021] Figure 3 is a side view of a battery protection frame structure provided by an embodiment of the present application;

[0022] Figure 4 is a structural schematic diagram of a vehicle provided in an embodiment of the present application;

[0023] Figure 5 It is a schematic diagram of a chassis structure of a vehicle provided in an embodiment of the present application;

[0024] Figure 6 It is a structural schematic diagram of a battery and a battery protection frame structure of a vehicle provided in an embodiment of the present application.

[0025] In the attached figure:

[0026] 1-battery protection frame structure; 11-shell; 110-accommodation cavity; 1101-first opening; 1102-second opening; 111-first protection plate; 1111-first end; 1112-second end; 112-second protection plate; 1121-first surface; 1122-second surface; 1123-first support portion; 1124-first hollow space; 1125-plane portion; 1126-curved portion; 1127-first side edge; 1128-second side edge; 1129- The third side; 113-the third protective plate; 1130-the limiting groove; 1131-the third surface; 1132-the fourth surface; 1133-the second supporting portion; 1134-the second hollow space; 13-the supporting structure; 12-the mounting frame; 2-the vehicle; 21-the rear panel assembly; 22-the rear floor assembly; 221-the first area; 222-the second area; 23-the rear wheel cover panel assembly; 24-the battery; 25-the bracket; x-the first direction; y-the second direction; z-the third direction. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the application. However, it is obvious to those skilled in the art that the application can be implemented when some details in these specific details are not needed. The following description of the embodiments is only to provide a better understanding of the application by illustrating the example of the application.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] In order to better understand this application, Figures 1 to 6 The battery protection frame structure and the vehicle according to the embodiments of the present application are described in detail.

[0030] See also Figure 1 and Figure 2The embodiment of the present application provides a battery protection frame structure 1, including a shell 11 and a mounting frame 12. The shell 11 has an open structure, and the shell 11 includes a receiving cavity 110, and the receiving cavity 110 is used to receive the battery. The shell 11 forms a limiting groove 1130, and the limiting groove 1130 includes an opening toward one side of the receiving cavity 110 and a bottom wall away from one side of the receiving cavity 110. The limiting groove 1130 is used to cooperate with the battery 24 to limit the battery 24; the mounting frame 12 is fixedly connected to the shell 11, and is used to realize the installation and fixation of the shell 11 and the vehicle.

[0031] The battery 24 protection frame structure 1 provided in the present application includes a shell 11 and a mounting frame 12. The shell 11 is used to accommodate and protect the battery 24, and the mounting frame 12 is used to install and fix the shell 11 to other components (such as the body of the vehicle 2). The shell includes a housing cavity to accommodate the battery. The shell forms a limiting groove 1130, and the limiting groove 1130 includes an opening toward one side of the housing cavity 110 and a bottom wall away from one side of the housing cavity 110. The limiting groove 1130 is used to cooperate with the battery 24 to limit the battery 24. The shell 11 can be installed on the vehicle body through the mounting frame 12. On the one hand, the battery 24 protection frame structure 1 can absorb stress when the collision is small, thereby protecting the battery 24 and improving the yield of the battery 24; on the other hand, it can realize indirect fixation of the battery 24 and the vehicle body, reducing the fixing strength of the direct fixing part of the battery 24 and the vehicle body, so that when the collision force is large, the battery 24 falls off from the housing 11 with an open structure and slides a distance in front of the vehicle. The collision stress is absorbed by the battery 24 protection frame structure 1 and consumed during the sliding process after the battery 24 falls off, so that the battery 24 is not easily damaged, that is, the battery 24 is protected from being affected before and after the collision. The battery 24 protection frame structure 1 provided in this application can solve the safety problem of the battery 24 being easily damaged.

[0032] In a feasible embodiment, the shell 11 includes a first protective plate 111, a second protective plate 112 and a third protective plate 113. The number of the first protective plates 111 is two and they are arranged opposite to each other along the first direction x. The first protective plate 111 includes a first end 1111 and a second end 1112 arranged along the second direction y. The first direction x is perpendicular to the second direction y. The second protective plate 112 is respectively fixed to the first ends 1111 of the two first protective plates 111. The third protective plate 113 is respectively fixed to the second ends 1112 of the two first protective plates 111. A accommodating cavity 110 is formed between the first protective plate 111, the second protective plate 112 and the third protective plate 113. The accommodating cavity 110 is used to accommodate the battery 24. A limiting groove 1130 is formed on the third protective plate 11.

[0033] In the above embodiment, the housing 11 includes a first protective plate 111 , a second protective plate 112 and a third protective plate 113 . There are two first protective plates 111 which are arranged opposite to each other along the first direction x, so as to protect opposite ends of the battery 24 along the first direction x. The first protective plate 111 includes a first end 1111 and a second end 1112 arranged along the second direction y, the first direction x is perpendicular to the second direction y, the second protective plate 112 is fixed to the first ends 1111 of the two first protective plates 111 respectively, and the third protective plate 113 is fixed to the second ends 1112 of the two first protective plates 111 respectively. The second protective plate 112 is used to protect one side of the battery 24 along the second direction y, and the third protective plate 113 is used to support the first protective plate 111 and the second protective plate 112 to ensure the overall strength of the shell 11, and the projection area of ​​the third protective plate 113 in the second direction y can be set to be smaller than the projection area of ​​the battery 24 in the second direction y. During use, the third protective plate 113 can fit the vehicle body and block and limit the battery 24 in the accommodating cavity 110 through the vehicle body.

[0034] In the above embodiment, the battery 24 can be a vehicle 212V battery 24. The battery 24 can be used as a power supply module for the entire vehicle to provide power for unlocking, double flash, rear brake lights, etc. of the entire vehicle. The battery 24 protection frame structure 1 provided in this application can protect the battery 24 and improve the reliability of the vehicle's power supply module to reduce the safety risks caused by damage to the power supply module.

[0035] In the above embodiment, the mounting frame 12 and the vehicle body can be fixed by screw connection, the fixing method is simple and the installation efficiency is high.

[0036] In a possible implementation, Figure 2 As shown, the second protection plate 112 includes a first surface 1121 and a second surface 1122 that are oppositely disposed, and a first support portion 1123 formed between the first surface 1121 and the second surface 1122 , and a first hollow space 1124 is formed between adjacent first support portions 1123 .

[0037] In the above embodiment, the second protective plate 112 includes a first support portion 1123 and a first hollow space 1124 is formed between adjacent first support portions 1123, so that while the first support portion 1123 provides support strength, the first hollow space 1124 can absorb the stress generated during the collision of the vehicle 2 to enhance the protection effect of the battery 24.

[0038] Specifically, the middle of the second protection plate 112 may be in a honeycomb structure.

[0039] In a possible implementation, Figure 2As shown, the third protection plate 113 includes a third surface 1131 and a fourth surface 1132 that are oppositely disposed, and a second support portion 1133 formed between the third surface 1131 and the fourth surface 1132 , and a second hollow space 1134 is formed between adjacent second support portions 1133 .

[0040] In the above embodiment, the third protection plate 113 includes a second support portion 1133 and a second hollow space 1134 is formed between adjacent second support portions 1133, so that while the second support portion 1133 provides support strength, the stress generated during the collision of the vehicle 2 can be absorbed through the second hollow space 1134 to enhance the protection effect on the battery 24.

[0041] Specifically, the third protection plate 113 may have a honeycomb structure in the middle.

[0042] In a possible implementation, Figure 2 As shown, the first protection plate 111 is a solid structure, so it is not easy to deform during the collision process, and can provide good support for the battery 24 protection frame structure 1 to protect the battery 24.

[0043] Specifically, the material of the battery 24 protection frame structure 1 can be acrylonitrile styrene butadiene copolymer (ABS) material. Acrylonitrile styrene butadiene copolymer (ABS) material has excellent properties such as good wear resistance, oil resistance, and impact resistance, which can enhance the protection effect of the battery 24.

[0044] In a possible implementation, Figure 1 and Figure 2 As shown, the accommodating cavity 110 includes a first opening 1101 and a second opening 1102 arranged along a third direction z, the first opening 1101 is formed between the first protective plate 111, the second protective plate 112 and the third protective plate 113, the second protective plate 112 includes a flat portion 1125 and a curved portion 1126, the curved portion 1126 is bent toward a direction close to the accommodating cavity 110, the second opening 1102 is formed between the first protective plate 111 and the second protective plate 112, the orthographic projection area of ​​the first opening 1101 on the third direction z is smaller than the orthographic projection area of ​​the second opening 1102 on the third direction z, and the third direction z, the second direction y, and the first direction x are perpendicular to each other.

[0045] In the above embodiment, by setting the second protection plate 112 to include a flat surface portion 1125 and a curved surface portion 1126, the height of the accommodating cavity 110 along the second direction y can be gradually reduced from the first opening 1101 to the second opening 1102. During use, the battery 24 protection frame structure 1 can be such that the first opening 1101 is oriented toward the side close to the rear of the vehicle and the second opening 1102 is oriented toward the front of the vehicle. When the rear of the vehicle 2 is hit and the speed is large enough, so that the force on the battery 24 exceeds the stress required for the shear between the battery 24 and the vehicle body, the battery 24 falls off from the second opening 1102 of the battery 24 protection frame and slides a distance toward the front of the vehicle. The collision stress is absorbed by the battery 24 protection frame structure 1 and consumed during the sliding process after the battery 24 falls off, so that the battery 24 is not easily damaged, that is, the battery 24 is protected from being affected before and after the collision. That is, through the above design, the battery 24 can be removed from the second opening 1102 after a large collision.

[0046] In a feasible implementation manner, the housing 11 and the mounting frame 12 are bonded and fixed or integrally formed.

[0047] Specifically, the one-piece molding arrangement helps to improve the connection strength of the structure.

[0048] In a possible implementation, Figure 3 As shown, the first protective plate 111 includes a first side 1127, a second side 1128 and a third side 1129, the first side 1127 is parallel to the second direction y, the second side 1128 is parallel to the third direction z and is connected to the first side 1127, the third side 1129 includes a straight portion and an arc portion, and the two ends of the third side 1129 are respectively connected to the first side 1127 and the second side 1128, and also includes a support structure 13 fixed to the first protective plate 111, the projection shape of the support structure 13 in the first direction x is a right triangle, and a right-angled side of the support structure 13 is connected to the first side 1127, and the third direction z, the second direction y, and the first direction x are perpendicular to each other.

[0049] In the above embodiment, the first protective plate 111 is designed to include a first side 1127, a second side 1128 and a third side 1129, the first side 1127 is parallel to the second direction y, the second side 1128 is parallel to the third direction z and connected to the first side 1127, so that it is easy to fit with the vehicle body. The third side 1129 is designed to include a straight portion and an arc portion, and both ends are connected to the first side 1127 and the second side 1128 respectively, so that it is easy to cooperate with the second protective plate 112, so that the straight portion is connected to the plane portion 1125, and the arc portion is connected to the curved portion 1126, so that the height of the accommodating cavity 110 along the second direction y is gradually reduced from the first opening 1101 to the second opening 1102.

[0050] In the above embodiment, the first side 1127 is further connected to a support structure 13 , and the support structure 13 can increase the strength of the housing 11 , and further enhance the protective effect of the housing 11 on the battery 24 .

[0051] In a feasible implementation manner, the support structure 13 and the first protection plate 111 are integrally formed.

[0052] In the above embodiment, the integral molding of the support structure 13 and the first protection plate 111 can facilitate the demolding of the first protection plate 111 , thereby improving the yield rate and helping to improve the support strength of the first protection plate 111 .

[0053] The present application also provides a vehicle 2, such as Figure 4 and Figure 5 As shown, it includes any one of the battery 24 protection frame structures 1 provided in the above-mentioned embodiments of the present application.

[0054] The vehicle 2 provided in this application may be a pure electric vehicle, a hybrid electric vehicle, or an extended-range vehicle, etc., and this application does not make any special limitations.

[0055] The vehicle 2 can also improve the yield of its internal power supply module. The battery 24 can be used as the power supply module of the whole vehicle to provide power for unlocking, double flash, rear brake lights, etc. of the whole vehicle. In the vehicle 2 provided by the present application, the battery 24 protection frame structure 1 can protect the battery 24 when the vehicle 2 is hit by a small impact force, improve the reliability of the power supply module of the whole vehicle, and reduce the safety risks caused by damage to the power supply module. When the vehicle 2 is hit by a large impact force, the battery 24 falls off, and the impact force is absorbed by the battery 24 protection frame structure 1, and the force of the battery 24 is further consumed by the forward buffering effect when falling off, reducing the probability of damage to the battery 24, thereby saving the cost of repair and replacement.

[0056] In a possible implementation, Figure 5 and Figure 6As shown, the vehicle 2 includes a rear panel assembly 21, a rear floor assembly 22, a rear wheel cover panel assembly 23 and a battery 24. The rear floor assembly 22 includes a first area 221 and a second area 222 arranged around the first area 221. The first area 221 is arranged opposite to the luggage compartment. The battery 24 protection frame structure 1 is installed in the area surrounded by the rear panel assembly 21, the first area 221 and the rear wheel cover panel assembly 23, and the battery 24 protection frame structure 1 is fixed to the rear floor assembly 22 through the mounting frame 12; the battery 24 is installed in the battery 24 protection frame structure 1, one side of the battery 24 is clamped with the limiting groove 1130, and the other side is fixed to the rear floor assembly 22 through the bracket 25.

[0057] Among them, the bracket 25 can be a plastic bracket 25 fixed to the battery 24. During use, the battery 24 protection frame structure 1 can make the first opening 1101 face the side close to the rear of the vehicle and the second opening 1102 face the front of the vehicle. When the rear of the vehicle 2 is collided and the speed is large enough, so that the force on the bracket 25 used to fix the battery 24 to the vehicle 2 exceeds the stress required for shear between the bracket 25 and the vehicle body, the battery 24 and the bracket 25 fall off from the second opening 1102 of the battery 24 protection frame and slide a distance toward the front of the vehicle. The collision stress is absorbed by the battery 24 protection frame structure 1 and consumed during the sliding process after the battery 24 falls off, thereby making the battery 24 not easily damaged, that is, protecting the battery 24 from being affected by the function before and after the collision, thereby improving the yield of the battery 24 and reducing the probability of damage.

[0058] According to the embodiments of the present application as above, these embodiments do not describe all the details in detail, nor do they limit the application to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A battery protection frame structure, characterized in that: include: A housing, wherein the housing has an open structure, the housing includes a receiving cavity, the receiving cavity is used to receive a battery, the housing forms a limiting groove, the limiting groove includes an opening toward one side of the receiving cavity and a bottom wall away from one side of the receiving cavity, and the limiting groove is used to cooperate with the battery to limit the battery; The mounting frame is fixedly connected to the shell and is used to achieve the installation and fixation of the shell and the vehicle.

2. The battery protection frame structure according to claim 1, characterized in that: The shell includes a first protective plate, a second protective plate and a third protective plate. The number of the first protective plates is two and they are arranged opposite to each other along the first direction. The first protective plate includes a first end and a second end arranged along the second direction. The first direction is perpendicular to the second direction. The second protective plate is respectively fixed to the first ends of the two first protective plates, and the third protective plate is respectively fixed to the second ends of the two first protective plates. The accommodating cavity is formed between the first protective plate, the second protective plate and the third protective plate, and the limiting groove is formed on the third protective plate.

3. The battery protection frame structure according to claim 2, characterized in that: The second protection plate includes a first surface, a second surface and a first support portion formed between the first surface and the second surface, and a first hollow space is formed between adjacent first support portions.

4. The battery protection frame structure according to claim 2, characterized in that: The third protection plate includes a third surface and a fourth surface that are oppositely disposed, and a second support portion formed between the third surface and the fourth surface, and a second hollow space is formed between adjacent second support portions.

5. The battery protection frame structure according to claim 2, characterized in that: The first protection plate is a solid structure.

6. The battery protection frame structure according to claim 2, characterized in that: The accommodating cavity includes a first opening and a second opening arranged along a third direction, the first opening is formed between the first protective plate, the second protective plate and the third protective plate, the second protective plate includes a flat portion and a curved portion, the curved portion is bent in a direction close to the accommodating cavity, the second opening is formed between the first protective plate and the second protective plate, the orthographic projection area of ​​the first opening in the third direction is smaller than the orthographic projection area of ​​the second opening in the third direction, and the third direction, the second direction and the first direction are perpendicular to each other.

7. The battery protection frame structure according to claim 1, characterized in that: The shell and the mounting frame are bonded and fixed or integrally formed.

8. The battery protection frame structure according to claim 5, characterized in that: The first protective plate includes a first side, a second side and a third side, the first side is parallel to the second direction, the second side is parallel to the third direction and connected to the first side, the third side includes a straight portion and an arc portion, and the two ends of the third side are respectively connected to the first side and the second side, and also includes a supporting structure fixed to the first protective plate, the projection shape of the supporting structure in the first direction is a right triangle, and a right-angled side of the supporting structure is connected to the first side, and the third direction, the second direction, and the first direction are perpendicular to each other.

9. The battery protection frame structure according to claim 8, characterized in that: The supporting structure and the first protection plate are integrally formed.

10. A vehicle, characterized in that: It comprises a battery protection frame structure as described in any one of claims 1 to 9.

11. The vehicle according to claim 10, characterized in that The invention comprises a rear panel assembly, a rear floor assembly, a rear wheel cover panel assembly and a battery, wherein the rear floor assembly comprises a first area and a second area arranged around the first area, wherein the first area is arranged opposite to a luggage compartment, and the battery protection frame structure is installed in an area surrounded by the rear panel assembly, the first area and the rear wheel cover panel assembly, and the battery protection frame structure is fixed to the rear floor assembly via the mounting frame; the battery is installed in the battery protection frame structure, and one side of the battery is engaged with the limiting groove, and the other side is fixed to the rear floor assembly via a bracket.

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