A battery box mounting bracket

Abstract

This utility model discloses a battery box mounting bracket, including an upper support plate, a lower support plate, and a sleeve. The upper support plate is welded to the side wall of the battery box, and the lower support plate is welded to the lower part of the upper support plate. The upper support plate has a first through hole, and the lower support plate has a second through hole. When the upper end of the sleeve is inserted into the first through hole and the lower end is inserted into the second through hole, the sleeve is perfectly vertical. This utility model's battery box mounting bracket reduces manufacturing costs by cutting, bending, and welding straight plates to assemble the mounting bracket. Furthermore, instead of using steel profiles to fix the limiting sleeve, the upper support plate is modified to increase the overall thickness of the mounting bracket, further improving its structural strength. The sleeve can also be directly fixed to the upper support plate, allowing for more precise installation.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a mounting bracket. Background Technology

[0002] The mounting brackets (also known as mounting brackets, fixing brackets, or lifting lugs) on the power battery box are a key component of the battery pack structure, and their role is crucial.

[0003] Simply put, the mounting bracket is the "bridge" connecting the battery pack to the electric vehicle body. Its core function is to securely, reliably, and precisely fix the heavy battery pack to the vehicle body.

[0004] The mounting brackets on the power battery box currently have the following problems: 1. The mounting bracket has low structural strength and rigidity, making it prone to deformation during hoisting; 2. A steel profile (Z-shaped or C-shaped) is provided above the mounting bracket. The steel profile is welded to the main structure of the mounting bracket with its opening facing downwards. Limiting holes are provided on the steel profile. The upper end of the sleeve is inserted into the limiting hole on the steel profile, and the lower end is inserted into the limiting hole provided on the main structure of the mounting bracket to maintain a vertical upward posture. Bolts or other types of fasteners are threaded through the through holes on the frame and engage with the threaded holes on the sleeve to fix the battery box and the frame.

[0005] However, due to the thinness and strength deviation of the steel profile, there are dimensional errors when it is bent into a Z-shape or C-shape, and there is also welding deformation when it is welded to the main structure of the mounting bracket. As a result, the accuracy of the sleeve's installation position often cannot be guaranteed, causing the sleeve to tilt when passing through the steel profile limit. This affects the flatness of the sleeve's installation surface and the position of the bolt holes, resulting in a poor fit between the bolts or other types of fasteners and the sleeve, and a shorter service life.

[0006] 3. The main structure of the mounting bracket is usually manufactured using a mold forming process, which is expensive and increases the manufacturing cost of the box. Utility Model Content

[0007] To address some of the shortcomings of existing technologies, this utility model provides a method for assembling a mounting bracket by cutting straight plates, bending straight plates, and welding the bent plates, thereby reducing manufacturing costs. In addition, instead of using steel fixing sleeves, the upper support plate is modified to increase the overall thickness of the mounting bracket, thereby further improving the structural strength of the mounting bracket. Furthermore, the sleeves can be directly fixed to the upper support plate, resulting in more precise installation.

[0008] The technical solution of this utility model to solve the above problems is: to provide a battery box mounting bracket, including an upper support plate, a lower support plate, and a sleeve. The upper support plate is welded to the side wall of the battery box, and the lower support plate is welded to the lower part of the upper support plate. The upper support plate has a first through hole, and the lower support plate has a second through hole. When the upper end of the sleeve is inserted into the first through hole and the lower end is inserted into the second through hole, the sleeve is exactly vertical.

[0009] Furthermore, the first through hole and the second through hole are arranged vertically opposite each other.

[0010] Furthermore, both the upper support plate and the lower support plate are configured as multi-segment bent plates formed by repeatedly bending a single plate.

[0011] Furthermore, the upper support plate includes a first plate portion, a second plate portion, a third plate portion, a fourth plate portion, and a fifth plate portion. Bending creases are provided between the first plate portion and the second plate portion, the second plate portion and the third plate portion, the third plate portion and the fourth plate portion, and the fourth plate portion and the fifth plate portion. The first plate portion and the fifth plate portion are both welded to the battery box body. The second plate portion and the fourth plate portion both support the third plate portion. The first through hole is opened on the third plate portion, and the third plate portion is horizontally arranged.

[0012] Furthermore, both the second plate portion and the fourth plate portion are inclined upwards and are configured as vertical plate structures.

[0013] Furthermore, both the first plate portion and the fifth plate portion are uniformly provided with a number of solder joints.

[0014] Furthermore, the lower support plate is simultaneously welded to the second plate, the fourth plate, and the battery box to be fixedly mounted on the lower part of the upper support plate.

[0015] Furthermore, the sleeve is provided with a threaded hole running vertically through it.

[0016] Furthermore, the upper edge of the sleeve is provided with an outer edge structure, and the sleeve is also welded and fixedly connected to the upper support plate through the outer edge structure.

[0017] Furthermore, it also includes a reinforcing plate, which is disposed between the upper support plate and the side wall of the battery box. The reinforcing plate is welded and fixed to both the battery box and the upper support plate to further enhance the strength of the support structure.

[0018] The beneficial effects of this utility model are: 1. The upper support plate, lower support plate, and reinforcing plate are all formed by bending straight plates, eliminating the need for mold forming and greatly reducing costs.

[0019] 2. Since both the upper and lower support plates are structural components of the mounting bracket and have load strength requirements, and both are thicker and stronger than steel sections, this application can eliminate the need for steel sections. Instead, a first through hole and a second through hole can be directly opened on the upper and lower support plates respectively. When welding the upper and lower support plates, the first and second through holes should be aligned vertically to limit the sleeve and maintain its vertical position, thus ensuring the bolt connection is secure.

[0020] Moreover, since both the upper and lower support plates have a certain thickness, the corresponding deformation during welding is extremely small and can be ignored. Therefore, as long as the technicians design the dimensions of the upper and lower support plates precisely, the first through hole and the second through hole can be accurately aligned, ensuring the accuracy of the sleeve's installation position and further improving the stability of the bolt. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0022] Figure 1 This is an overall structural diagram of the battery box mounting bracket in this embodiment; Figure 2 This is an exploded view of the battery box mounting bracket in this embodiment; Figure 3 This is a structural diagram of the upper support plate in this embodiment; 1-Upper support plate, 2-Lower support plate, 3-Sleeve, 4-First through hole, 5-Second through hole, 6-Bending crease, 7-Reinforcing plate; 11-First board section, 12-Second board section, 13-Third board section, 14-Fourth board section, 15-Fifth board section; 31 - Threaded hole, 32 - Outer edge structure. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The following will be based on Figures 1-3 The technical solution of this utility model will be described in more detail below.

[0027] Please see Figure 1 A battery box mounting bracket according to a specific embodiment of the present invention includes an upper support plate 1, a lower support plate 2, and a sleeve 3. The upper support plate 1 is welded to the side wall of the battery box, and the lower support plate 2 is welded to the lower part of the upper support plate 1. The upper support plate 1 is provided with a first through hole 4, and the lower support plate 2 is provided with a second through hole 5. When the upper end of the sleeve 3 is inserted into the first through hole 4 and the lower end is inserted into the second through hole 5, the sleeve 3 is exactly vertical.

[0028] Specifically, with Figure 1 Taking the indicated orientation as an example, in this embodiment, although in Figure 1 The battery compartment structure is not shown in the drawing, but it can be understood that the battery compartment can be set up in... Figure 1In the left rear part of the battery box, the battery box mounting bracket in this embodiment is welded and fixed to the side wall of the battery box via the upper support plate 1. The lower support plate 2 is welded to the lower opening of the upper support plate 1 to form a hollow mounting bracket structure. This reduces the weight of the mounting bracket, i.e. the amount of manufacturing materials, as much as possible while ensuring the structural strength of the mounting bracket, thereby reducing costs.

[0029] Meanwhile, since both the upper support plate 1 and the lower support plate 2 are load-bearing plates with a certain thickness, they will not deform due to welding. Therefore, technicians can control the shape and dimensions of the upper support plate 1, the position of the first through hole 4 on the upper support plate 1, the shape and dimensions of the lower support plate 2, and the position of the second through hole 5 on the lower support plate 2 without considering the structural deformation caused by welding. This ensures that when the upper support plate 1 is welded and installed on the side wall of the battery box and the lower support plate 2 is welded and installed on the lower part of the upper support plate 1, the first through hole 4 and the second through hole 5 can be aligned vertically and have a very high degree of concentricity. This allows the sleeve 3 to maintain a vertical installation posture when it is inserted into the first through hole 4 and the lower end is inserted into the second through hole 5, improving the flatness and positional accuracy of the sleeve 3 and enabling it to be better threadedly fixed to the bolts used for fixing the mounting bracket and the vehicle frame.

[0030] Further, please refer to Figure 1 and Figure 3 In this embodiment, both the upper support plate 1 and the lower support plate 2 are configured as multi-segment bent plates formed by bending a single plate multiple times.

[0031] Specifically, the upper support plate 1 includes a first plate portion 11, a second plate portion 12, a third plate portion 13, a fourth plate portion 14, and a fifth plate portion 15. The first plate portion 11, the second plate portion 12, the third plate portion 13, the fourth plate portion 14, and the fifth plate portion 15 are all straight plates. The first plate portion 11 and the fifth plate portion 15 have the same shape, and the second plate portion 12 and the fourth plate portion 14 have the same shape. There are bending creases 6 between the first plate portion 11 and the second plate portion 12, the second plate portion 12 and the third plate portion 13, the third plate portion 13 and the fourth plate portion 14, and the fourth plate portion 14 and the fifth plate portion 15. Several welding points are evenly arranged on the first plate portion 11 and the second plate portion 12.

[0032] Among them, with Figure 1Taking the orientation shown as an example, in this embodiment, when the upper support plate 1 is welded and installed to the battery box, the first plate 11 and the fifth plate 15 can both be attached to the side wall of the battery box. Technicians can weld and fix the first plate 11 and the fifth plate 15 to the side wall of the battery box through preset welding points. At this time, the second plate 12 and the fourth plate 14 are both inclined upwards and are both vertical plates. The third plate 13 is in a horizontal position. The second plate 12 and the fourth plate 14 jointly support the third plate to reduce the overall structural strength of the upper support plate 1.

[0033] At the same time, with Figure 1 Taking the orientation shown as an example, in this embodiment, when the lower support plate 2 is welded to the upper support plate 1, the lower support plate 2 is also inclined upward as a whole. The lower left end of the lower support plate 2 is also provided with a welding edge to be welded and fixedly connected to the side wall of the battery box. The left and right sides of the lower support plate 2 are also welded to the lower side edge and the right front side edge of the second plate part 12 and the fourth plate part 14, respectively. The lower support plate 2 is a multi-segment bent plate that can just cover the opening on the right front side of the upper support plate 1.

[0034] Further, please refer to Figure 1 and Figure 2 In this embodiment, the sleeve 3 is also provided with a threaded hole 31 through it vertically, so as to allow the bolts used for fixing the mounting bracket and the frame to be threaded into the corresponding thread.

[0035] In addition, to further fix the sleeve 3, an annular outer edge structure 32 is provided at the upper edge of the sleeve 3. When the sleeve 3 is set at the first through hole 4, the outer edge structure 32 can be fitted with the third plate 13. Technicians can further fix the sleeve 3 by welding the outer edge structure 32 and the third plate 13 to prevent the sleeve 3 from sliding vertically.

[0036] Further, please refer to Figure 1 and Figure 2 ,by Figure 2 Taking the orientation shown as an example, in this embodiment, in order to further improve the structural strength of the mounting bracket, a reinforcing plate 7 is also provided between the second plate 12 and the fourth plate 14. The reinforcing plate 7 is also a multi-segment bent plate. The left end of the reinforcing plate 7 is also provided with a welding edge to be welded and fixed to the side wall of the battery box. The front and rear edges of the reinforcing plate 7 are also welded and fixed to the upper edge of the second plate 12 and the upper edge of the fourth plate 14, respectively, so as to further improve the support structure strength of the mounting bracket.

[0037] Anything not mentioned above applies to existing technologies.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery box mounting bracket, characterized in that, The battery box includes an upper support plate (1), a lower support plate (2), and a sleeve (3). The upper support plate (1) is welded to the side wall of the battery box, and the lower support plate (2) is welded to the lower part of the upper support plate (1). The upper support plate (1) has a first through hole (4), and the lower support plate (2) has a second through hole (5). When the upper end of the sleeve (3) is inserted into the first through hole (4) and the lower end is inserted into the second through hole (5), the sleeve (3) is exactly vertical.

2. The mounting bracket as described in claim 1, characterized in that, The first through hole (4) and the second through hole (5) are arranged opposite each other.

3. The mounting bracket as described in claim 1, characterized in that, Both the upper support plate (1) and the lower support plate (2) are configured as multi-segment bent plates formed by bending a single plate multiple times.

4. The mounting bracket as described in claim 3, characterized in that, The upper support plate (1) includes a first plate part (11), a second plate part (12), a third plate part (13), a fourth plate part (14), and a fifth plate part (15). The first plate part (11) and the second plate part (12), the second plate part (12) and the third plate part (13), the third plate part (13) and the fourth plate part (14), and the fourth plate part (14) and the fifth plate part (15) are all provided with bending creases (6). The first plate part (11) and the fifth plate part (15) are both welded to the battery box. The second plate part (12) and the fourth plate part (14) both support the third plate part (13). The first through hole (4) is opened on the third plate part (13). The third plate part (13) is horizontally arranged.

5. The mounting bracket as described in claim 4, characterized in that, The second plate (12) and the fourth plate (14) are both inclined upwards and are both configured as vertical plate structures.

6. The mounting bracket as described in claim 4, characterized in that, Both the first plate portion (11) and the fifth plate portion (15) are uniformly provided with a number of solder points.

7. The mounting bracket as described in claim 4, characterized in that, The lower support plate (2) is simultaneously welded to the second plate (12), the fourth plate (14), and the battery box to be fixedly installed on the lower part of the upper support plate (1).

8. The mounting bracket as described in claim 1, characterized in that, The sleeve (3) has a threaded hole (31) that runs vertically through it.

9. The mounting bracket as described in claim 1, characterized in that, The upper edge of the sleeve (3) is also provided with an outer edge structure (32), and the sleeve (3) is also welded and fixedly connected to the upper support plate (1) through the outer edge structure (32).

10. The mounting bracket as described in claim 1, characterized in that, It also includes a reinforcing plate (7), which is disposed between the upper support plate (1) and the side wall of the battery box. The reinforcing plate (7) is welded and fixed to the battery box and the upper support plate (1) to further enhance the strength of the support structure.

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