Battery pack and electric vehicle

Abstract

The utility model relates to the technical field of batteries, in particular to a battery pack and an electric vehicle, the battery pack comprises a battery box and a reinforcing piece, the battery box comprises a bottom plate, and a containing space is formed in one side of the bottom plate; the reinforcing piece is arranged on the side, away from the containing space, of the bottom plate, a connecting groove is formed in the reinforcing piece, and the connecting groove is used for being connected with a vehicle.

Description

Technical Field

[0001] The present disclosure relates to the field of battery technology, and in particular, to a battery pack and an electric vehicle. Background Art

[0002] Electric vehicles are often equipped with battery packs, which are used to provide power to the electric vehicles. In related technologies, the battery pack is mounted on the main structure of the vehicle. When the electric vehicle is working, it needs to face different working conditions. For example, in some working conditions, the electric vehicle is subject to more serious bumps and vibrations. The poor connection stability between the battery pack and the main structure of the vehicle will lead to the risk of the battery pack falling off.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] The purpose of the present disclosure is to provide a battery pack and an electric vehicle, thereby improving the connection stability between the battery pack and the vehicle at least to a certain extent.

[0005] According to one aspect of the present disclosure, a battery pack is provided, the battery pack comprising:

[0006] A battery box, the battery box comprising a bottom plate, a side of the bottom plate being provided with a housing space, the housing space comprising a battery compartment for housing batteries and an electrical compartment for housing electrical components;

[0007] A reinforcement member is arranged on a side of the bottom plate away from the accommodating space, and the orthographic projection of the reinforcement member on the bottom plate is at least partially located in a first area, and the first area is the orthographic projection area of ​​the electrical compartment on the bottom plate. A connecting groove is provided on the reinforcement member, and the connecting groove is used for connecting to the vehicle.

[0008] According to a second aspect of the present disclosure, there is provided an electric vehicle, the electric vehicle comprising:

[0009] The above-mentioned battery pack;

[0010] A vehicle body is provided with a connecting structure, and the connecting structure is at least partially connected to the connecting groove.

[0011] The battery pack provided in the embodiment of the present disclosure includes a battery box and a reinforcement member. The battery box has a bottom plate, and a accommodating space is formed on one side of the bottom plate. The accommodating space includes a battery compartment for accommodating batteries and an electrical compartment for accommodating electrical components. The reinforcement member is arranged on the side of the bottom plate away from the accommodating space, and the orthographic projection of the reinforcement member on the bottom plate is at least partially located in a first area, which is the orthographic projection area of ​​the electrical compartment on the bottom plate. The structural strength of the bottom of the battery box can be improved by the reinforcement member, and the reinforcement member is provided with a connecting groove for connecting to the vehicle. The connecting groove can improve the stability of the connection between the battery pack and the vehicle to at least a certain extent.

[0012] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0014] Figure 1 A schematic diagram of the structure of a battery pack provided by an exemplary embodiment of the present disclosure;

[0015] Figure 2 A schematic diagram of the structure of another battery pack provided by an exemplary embodiment of the present disclosure;

[0016] Figure 3 A schematic diagram of installing a battery pack is provided according to an exemplary embodiment of the present disclosure.

[0017] Description of reference numerals:

[0018] 100, battery pack; 10, box body; 11, bottom plate; 12, frame; 101, electrical compartment; 102, battery compartment; 20, reinforcement; 21, connecting groove; 201, through hole; 30, single cell; 210, vehicle body beam; 220, adapter. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the exemplary embodiments of the present disclosure to clearly and completely describe the technical solutions in the exemplary embodiments of the present disclosure. The exemplary embodiments described herein are only for illustrative purposes and are not intended to limit the scope of protection of the present disclosure. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present disclosure.

[0020] In the description of the present disclosure, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more; the term "and / or" includes any and all combinations of one or more associated listed items. In particular, reference to "the / the" object or "an" object is also intended to indicate one of a possible plurality of such objects.

[0021] Unless otherwise specified or explained, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0022] Further, in the description of the present disclosure, it should be understood that the directional words such as "upper", "lower", "inner", "outer" and the like described in the exemplary embodiments of the present disclosure are described at the angles shown in the accompanying drawings and should not be understood as limitations on the exemplary embodiments of the present disclosure. It should also be understood that, in the context, when it is mentioned that an element or feature is connected to another element (one or more) "upper", "lower", or "inner", "outer", it can not only be directly connected to the other (one or more) elements "upper", "lower", "inner", "outer", but also can be indirectly connected to the other (one or more) elements "upper", "lower", "inner", "outer" through an intermediate element.

[0023] The disclosed exemplary embodiment provides a battery pack 100, such as Figure 1 and Figure 2 As shown, the battery pack 100 includes a battery box 10 and a reinforcement 20. The battery box 10 includes a bottom plate 11. A accommodating space is provided on one side of the bottom plate 11. The accommodating space includes a battery compartment 102 for accommodating batteries and an electrical compartment 101 for accommodating electrical components. The reinforcement 20 is provided on the side of the bottom plate 11 away from the accommodating space, and the orthographic projection of the reinforcement 20 on the bottom plate 11 is at least partially located in the first area, which is the orthographic projection area of ​​the electrical compartment 101 on the bottom plate 11. The reinforcement 20 is provided with a connecting groove 21, which is used to connect to the vehicle.

[0024] The battery pack 100 provided by the embodiments of the present disclosure includes a battery box 10 and a reinforcing member 20. The battery box 10 has a bottom plate 11, and a receiving space is formed on one side of the bottom plate 11. The reinforcing member 20 is disposed on the side of the bottom plate 11 facing away from the receiving space. The structural strength of the bottom of the battery box 10 can be improved through the reinforcing member 20, and a connecting groove 21 for connecting to a vehicle is provided on the reinforcing member 20. The stability of the connection between the battery pack 100 and the vehicle can be improved to at least a certain extent through the connecting groove 21.

[0025] The following will detail each part of the battery pack 100 provided by the embodiments of the present disclosure:

[0026] The battery box 10 is used to form the outer contour of the battery pack 100 and protect the components inside the battery box 10. The battery box 10 includes a bottom plate 11 and a frame 12. The frame 12 surrounds the bottom plate 11, and the frame 12 and the bottom edge are connected to form a receiving space. The receiving space inside the battery box 10 is divided into a battery compartment 102 for accommodating batteries and an electrical compartment 101 for accommodating electrical components. For example, a partition beam is provided in the receiving space formed by the bottom plate 11 and the frame 12, and the space inside the battery box 10 is divided into a battery compartment 102 and an electrical compartment 101 through the partition beam.

[0027] Wherein, the bottom plate 11 and the frame 12 can be connected by one or more of welding, riveting, and bolt connection. The frame 12 surrounding the bottom plate 11 means that the frame 12 is at least partially located on the side of the bottom plate 11. The bottom plate 11 can include two relatively arranged large surfaces and a plurality of small surfaces located between the two large surfaces. The area of the large surface is larger than that of the small surface, and the side surface of the bottom plate 11 is a small surface.

[0028] Exemplarily, the frame 12 can include a first side beam, a second side beam, a third side beam, and a fourth side beam, and the first side beam, the second side beam, the third side beam, and the fourth side beam are connected end to end in sequence. The first side beam, the second side beam, the third side beam, and the fourth side beam are connected to the bottom plate 11.

[0029] The frame 12 is provided with a first connection point for connecting to the bottom plate 11 and a second connection point for connecting to the reinforcing member 20. The second connection point is located on the side of the first connection point facing away from the receiving space.

[0030] Wherein, the first connection point can be a threaded hole, a welding mark, or a through hole, etc., and the second connection point can be a threaded hole, a welding mark, or a through hole, etc. The first connection point and the second connection point can be the same. For example, both the first connection point and the second connection point are threaded holes. Or the first connection point and the second connection point can be different. For example, the first connection point can be a welding mark and the second connection point is a threaded hole.

[0031] In some embodiments, the battery box 10 may further include a box cover. The bottom plate 11 and the frame 12 form the lower battery box 10, and the box cover is disposed on the lower battery box 10. The box cover is connected to the side of the frame 12 facing away from the bottom plate 11, and the lower battery box 10 is sealed by the box cover to protect the batteries and electrical components in the lower battery box 10.

[0032] It can be understood that in some other feasible embodiments of the present disclosure, the battery box 10 may not include a box cover. The lower battery box 10 is directly connected to the vehicle, and devices such as the vehicle chassis or frame act as the box cover.

[0033] A plurality of single cells 30 are disposed in the battery compartment 102, and the plurality of single cells 30 are arranged in the battery compartment 102 according to a preset rule. By way of example, the plurality of single cells 30 form a first battery layer and a second battery layer, and the first battery layer and the second battery layer are stacked in the battery box 10 in a vertical direction with an interval therebetween.

[0034] The single cell 30 may include a battery case, a battery core, and a pole column. The battery case is used to form the outer contour of the single cell 30 and protect the components inside the battery case. A receiving space is provided inside the battery case, the battery core is disposed in the receiving space, the pole column is provided on the battery case, and the pole column is connected to the battery core.

[0035] The battery case may include a case body and a cover plate. One end of the case body has an opening, and the cover plate is connected to the opening of the case body. The case body may include a bottom wall and a side frame. The bottom wall and the cover plate are disposed opposite to each other. The side frame is in a cylindrical structure with openings at both ends, and the bottom wall and the cover plate are respectively connected to both ends of the cylindrical structure.

[0036] The battery core is disposed inside the battery case, the battery core is connected to the pole column, and the battery core is immersed in the electrolyte. The battery core includes a battery core body and pole tabs. The pole tabs extend from the battery core body. There are two pole tabs on the battery core body, and the two pole tabs are respectively a first pole tab (positive pole tab) and a second pole tab (negative pole tab). The first pole tab and the second pole tab can be respectively connected to corresponding adapter parts.

[0037] It should be noted that the battery core body may include more than two electrode plates, the pole tabs include more than two single-piece pole tabs, the single-piece pole tabs respectively extend from the corresponding electrode plates, the width of the single-piece pole tab is smaller than the width of the electrode plate, and the plurality of single-piece pole tabs are stacked to form the pole tabs.

[0038] In one embodiment, the battery is a stacked battery, which is not only convenient for forming a battery pack, but also a battery with a longer length can be obtained by processing. The battery core is a stacked battery core, and the battery core has a first electrode plate, a second electrode plate having an opposite electrical property to the first electrode plate, and a separator sheet disposed between the first electrode plate and the second electrode plate that are stacked on each other, so that multiple pairs of the first electrode plate and the second electrode plate are stacked to form the stacked battery core.

[0039] Optionally, the battery cell may be a wound battery cell, that is, a first pole sheet, a second pole sheet having electrical properties opposite to the first pole sheet, and a diaphragm sheet arranged between the first pole sheet and the second pole sheet are wound to obtain the wound battery cell.

[0040] In the embodiment of the present disclosure, the single cells 30 are all cylindrical cells. The axis of the single cells 30 is arranged in the vertical direction. That is, the multiple single cells 30 are arranged in two layers vertically. The two-layer vertical arrangement of the single cells 30 can effectively save the size of the battery pack 100 in the non-height direction, which is conducive to the flexible layout of the battery pack 100 in the electric vehicle. It is understandable that in other embodiments, the single cells 30 can also be quadrangular prism batteries, and the embodiment of the present disclosure is not limited to this.

[0041] The electrical compartment 101 is used to accommodate electrical components. For example, a high-voltage control unit such as a BMS / BDU and electrical switching components such as a switching socket may be disposed in the electrical compartment 101 .

[0042] It should be noted that, in the embodiment of the present disclosure, the bottom plate 11 may be a single-layer structure, or the bottom plate 11 may be a multi-layer structure. For example, the bottom plate 11 may be a bearing plate for supporting the battery, or the bottom plate 11 may include a bearing plate and a bottom guard plate, the bearing plate is used to support the battery, the bottom guard plate is provided at the bottom of the supporting plate, and the bottom guard plate is used to protect the bottom of the battery pack 100.

[0043] The reinforcement 20 is arranged on the side of the bottom plate 11 away from the accommodating space. On the one hand, the reinforcement 20 reinforces the bottom of the bottom plate 11 to reduce the risk of damage to the bottom plate 11 due to low strength. On the other hand, the reinforcement 20 is provided with a connecting groove 21, which can improve the convenience and stability of installing the battery pack 100 on the vehicle body.

[0044] The accommodation space includes a battery compartment 102 for accommodating batteries and an electrical compartment 101 for accommodating electrical components. The orthographic projection of the electrical compartment 101 on the bottom plate 11 is the first area, and the orthographic projection of the battery compartment 102 on the bottom plate 11 is the second area. The orthographic projection of the reinforcement member 20 on the bottom plate 11 is at least partially located in the first area, and the orthographic projection of the reinforcement member 20 on the bottom plate 11 is not located in the second area.

[0045] In the battery pack 100, an electrical compartment is arranged on one side. Since the contents are lighter than the battery compartment 102, the center of gravity is shifted to the battery compartment 102. When the whole pack is connected to the vehicle body, one end of the electrical compartment 101 is easy to tilt up. A reinforcement member 20 is arranged under the electrical compartment 101. On the one hand, the weight of one side of the electrical compartment 101 can be increased to improve the weight balance of both ends of the battery pack 100. On the other hand, the reinforcement member 20 can be directly connected to the vehicle body beam to increase the connection strength between the whole pack and the vehicle body at the position of the electrical compartment 101.

[0046] Optionally, the area of the orthographic projection of the reinforcing member 20 on the bottom plate 11 is S1, and the area of the bottom plate 11 is S2, where 0.6 ≤ S1 / S2 ≤ 1. By setting S1 / S2 to be 0.6 - 1, on the one hand, it ensures the area of the reinforcing member 20, which is beneficial to improving the strength of the bottom of the battery pack 100. On the other hand, it also avoids the problem that the reinforcing member 20 is too large, occupying too much space and increasing the overall weight of the battery pack 100.

[0047] In one embodiment, the orthographic projection of the reinforcing member 20 on the bottom plate 11 completely covers the first area. The reinforcing member 20 is provided at the bottom of the electrical compartment 101, which can increase the weight on one side of the electrical compartment 101, improve the weight balance at both ends of the battery pack 100, and the reinforcing member 20 can protect the electrical compartment 101 to protect the electrical components therein.

[0048] The battery compartment 102 and the electrical compartment 101 are arranged along the first direction, the reinforcing member 20 extends along the second direction, the second direction is perpendicular to the first direction, and the second direction is parallel to the bottom plate 11 (the large surface of the bottom plate 11). The dimension of the battery compartment 102 along the second direction is L1, and the dimension of the reinforcing member 20 along the second direction is L2, where 0.6 ≤ L2 / L1 ≤ 1.

[0049] By setting L2 / L1 to be 0.6 - 1, on the one hand, it avoids the problem that the reinforcing member 20 is too small and lacks strength. On the other hand, it also avoids the problem that the reinforcing member 20 is too large, increasing the outer envelope and being unfavorable for saving the vehicle space, and being prone to assembly interference with other components.

[0050] The connecting groove 21 extends along the second direction. It avoids the inward collapse and intrusion of the box body caused by the impact perpendicular to the extending direction of the reinforcing member 20, and protects the high-voltage control units such as BMS / BDU in the electrical compartment.

[0051] At least two connecting grooves 21 are provided on the reinforcing member 20, and the multiple connecting grooves 21 can further enhance the structural strength. A through hole 201 is provided on the reinforcing member 20. On the one hand, it can reduce the weight, and on the other hand, the through hole 201 can also be used as a drain hole to avoid water accumulation in the reinforcing member 20.

[0052] The reinforcing member 20 can be a hollow structure. The hollow-structured reinforcing member 20 can reduce the weight of the reinforcing member 20, which is beneficial to the lightweight of the battery pack 100. The connecting grooves 21 on the reinforcing member 20 can also be formed by stamping or cutting.

[0053] Exemplarily, the reinforcement member 20 may include a first panel and a second panel disposed opposite to each other, and a plurality of side panels connecting the first panel and the second panel. The second panel is located on the side of the first panel away from the battery box 10, and a connecting groove 21 is formed by stamping on the second panel. Alternatively, a through hole penetrating the second panel may be formed by cutting on the second panel, and a reinforcing plate is welded in the through hole, and two edges of the reinforcing plate are respectively welded to the first panel and the second panel.

[0054] The battery pack 100 provided by an embodiment of the present disclosure includes a battery box 10 and a reinforcement member 20. The battery box 10 has a bottom plate 11, and a receiving space is formed on one side of the bottom plate 11. The reinforcement member 20 is disposed on the side of the bottom plate 11 away from the receiving space. The structural strength of the bottom of the battery box 10 can be improved through the reinforcement member 20, and a connecting groove 21 for connecting to a vehicle is provided on the reinforcement member 20. The stability of the connection between the battery pack 100 and the vehicle can be improved to at least a certain extent through the connecting groove 21.

[0055] An exemplary embodiment of the present disclosure further provides an electric vehicle, which includes: a battery pack 100 and a vehicle body. A connection structure is provided on the vehicle body, and the connection structure is at least partially connected to the connecting groove 21.

[0056] Wherein, the battery pack 100 includes a battery box 10 and a reinforcement member 20. The battery box 10 includes a bottom plate 11, and a receiving space is provided on one side of the bottom plate 11; the reinforcement member 20 is disposed on the side of the bottom plate 11 away from the receiving space, and a connecting groove 21 is provided on the reinforcement member 20, and the connecting groove 21 is used for connecting to a vehicle.

[0057] The electric vehicle provided by an embodiment of the present disclosure includes a battery pack 100. In the battery pack 100, the battery box 10 has a bottom plate 11, and a receiving space is formed on one side of the bottom plate 11. The reinforcement member 20 is disposed on the side of the bottom plate 11 away from the receiving space. The structural strength of the bottom of the battery box 10 can be improved through the reinforcement member 20, and a connecting groove 21 for connecting to a vehicle is provided on the reinforcement member 20. The stability of the connection between the battery pack 100 and the vehicle can be improved to at least a certain extent through the connecting groove 21.

[0058] A connection structure is provided on the vehicle body, and the connection structure is at least partially connected to the connecting groove 21 of the reinforcement member 20. Through the connection between the connection structure and the connecting groove 21, the battery pack 100 is limited and reinforced through the connecting groove 21, and the stability of the connection between the battery pack 100 and the vehicle body is improved.

[0059] Such as Figure 3As shown, the connection structure includes a vehicle body beam 210 and an adapter 220. The first surface of the adapter 220 is connected to the reinforcement 20, and the second surface of the adapter 220 is connected to the vehicle body beam. The first surface and the second surface of the adapter 220 are perpendicular (that is, the adapter is a right-angle adapter). The first surface of the adapter 220 is opposite to the bottom surface of the battery pack 100, and the second surface of the adapter 220 is connected to the side surface of the vehicle body beam, so that the battery pack 100 is easily installed from the bottom of the vehicle upwards, avoiding interference of the adapter during installation.

[0060] For example, the electric vehicle includes a first body beam and a second body beam, the first body beam and the second body beam are arranged opposite to each other, and the battery pack 100 is arranged between the first body beam and the second body beam.

[0061] Among them, a first adapter and a second adapter are respectively arranged at the bottom of the battery pack 100, the first adapter is connected to the first vehicle body beam (bolted), and the second adapter is connected to the second vehicle body beam (bolted).

[0062] In actual application, the first body beam and the second body beam are inherent structures on the vehicle, which form a fixed accommodation space, and the battery pack 100 is installed in the accommodation space. Other devices are arranged on the front, rear and top sides of the accommodation space in the vehicle, so the battery pack 100 is installed from the bottom of the vehicle to the accommodation space. On this basis, the battery pack 100 and the vehicle body are connected by an adapter, so that the battery pack 100 can enter the accommodation space from the bottom of the vehicle, and the width of the battery pack 100 can be increased as much as possible to improve space utilization.

[0063] It should be noted that the electric vehicle in the embodiment of the present disclosure may be a pure electric vehicle, or the electric vehicle may also be a hybrid vehicle, etc., and the embodiment of the present disclosure does not specifically limit this. The battery pack may be fixedly connected to the vehicle body, or the battery pack may be detachably connected to the vehicle body.

[0064] The electric vehicle provided by the embodiment of the present disclosure includes a battery pack 100. In the battery pack 100, a battery box 10 has a bottom plate 11, and a receiving space is formed on one side of the bottom plate 11. A reinforcement member 20 is arranged on the side of the bottom plate 11 away from the receiving space. The reinforcement member 20 can improve the structural strength of the bottom of the battery box 10, and a connecting groove 21 for connecting to the vehicle is provided on the reinforcement member 20. The connecting groove 21 can improve the stability of the connection between the battery pack 100 and the vehicle to at least a certain extent.

[0065] Other embodiments of the present disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.

Claims

1. A battery pack, characterized in that, The battery pack comprises: A battery box, the battery box comprising a bottom plate, a side of the bottom plate being provided with a housing space, the housing space comprising a battery compartment for housing batteries and an electrical compartment for housing electrical components; A reinforcement member is arranged on a side of the bottom plate away from the accommodating space, and the orthographic projection of the reinforcement member on the bottom plate is at least partially located in a first area, and the first area is the orthographic projection area of ​​the electrical compartment on the bottom plate. A connecting groove is provided on the reinforcement member, and the connecting groove is used for connecting to the vehicle.

2. The battery pack according to claim 1, characterized in that, The area of ​​the orthographic projection of the reinforcement on the bottom plate is S1, the area of ​​the bottom plate is S2, and 0.6≤S1 / S2≤1.

3. The battery pack according to claim 1, characterized in that, The orthographic projection of the reinforcement member on the bottom plate completely covers the first area.

4. The battery pack according to claim 1, wherein, The battery compartment and the electrical compartment are arranged along a first direction, the reinforcement extends along a second direction, the second direction is perpendicular to the first direction, and the second direction is parallel to the bottom plate, the size of the battery compartment along the second direction is L1, the size of the reinforcement in the second direction is L2, 0.6≤L2 / L1≤1.

5. The battery pack according to claim 4, wherein The connecting groove extends along the second direction, and at least two connecting grooves are arranged on the reinforcing member.

6. The battery pack according to claim 1, characterized in that, The reinforcement is provided with a through hole.

7. The battery pack according to claim 1, wherein The battery box also includes: A frame surrounds the bottom plate and is connected to the bottom plate, the bottom plate and the frame enclose the accommodating space, and the reinforcement is connected to the frame.

8. The battery pack according to claim 7, wherein, The frame is provided with a first connection point for connecting to the bottom plate and a second connection point for connecting to the reinforcement member, and the second connection point is located on a side of the first connection point away from the accommodating space.

9. An electric vehicle, characterized in that, The electric vehicle comprises: The battery pack according to any one of claims 1 to 8; A vehicle body is provided with a connecting structure, and the connecting structure is at least partially connected to the connecting groove.

10. The electric vehicle according to claim 9, characterized in that, The connection structure comprises: body beams; An adapter, wherein the first surface of the adapter is connected to the reinforcement, and the first surface of the adapter is opposite to the bottom surface of the battery pack, the second surface of the adapter is connected to the vehicle body beam, and the first surface and the second surface of the adapter are perpendicular.

Images