Automobile battery box force bearing lug structure

Abstract

The utility model relates to the technical field of automobile battery box, disclose a kind of automobile battery box force lug structure, and lug structure is welded from upper support and lower support, and upper support and lower support adopt 980Mpa high-strength steel plate bending forming U-shaped structure, and the side edge of upper support and lower support both sides lap arc welding and are connected, form the frame-shaped lug structure of circumferential closure, both ends open, and the end face of one end opening of lug structure is welded and connected with the side surface of battery box.The utility model evenly distributes the vertical tension from hoisting equipment to battery box structure, ensures that whole battery package rises or falls stably, and stress concentration, fracture or deformation cannot occur, prevent the deformation or damage caused by local overload of battery box.

Description

Technical Field

[0001] This utility model relates to the field of automotive battery box technology, and more specifically, to a load-bearing lug structure for an automotive battery box. Background Technology

[0002] In the design of electric vehicle battery packs, considering the assembly, maintenance, and replacement of battery modules, lifting lugs are typically installed on the battery housing. Lifting lugs are key components used to connect lifting equipment and the object being lifted when hoisting and moving heavy objects. The design, materials, and installation location of the lifting lugs will vary depending on the application scenario. As an important interface connecting lifting equipment and the object being lifted, lifting lugs play an indispensable role in ensuring operational safety and improving work efficiency.

[0003] The existing aluminum profile lifting lug structure is prone to local overload due to concentrated stress generated during the hoisting process, which can lead to deformation or damage. Utility Model Content

[0004] The purpose of this utility model is to provide a load-bearing lug structure for an automotive battery box to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0006] A load-bearing lug structure for an automotive battery box is disclosed. The lug structure 100 is connected to the battery box 200. The lug structure 100 is a frame structure that is circumferentially closed and open at both ends. The open end face of the lug structure 100 is welded to the side of the battery box 200. The lug structure 100 is assembled from an upper support 110 and a lower support 120 distributed vertically. Both the upper support 110 and the lower support 120 are constructed as U-shaped structures, and their opening directions are opposite to each other. The vertical edges of the upper support 110 and the lower support 120 are overlapped and welded together.

[0007] Furthermore, when the vertical edges of the upper support 110 and the lower support 120 are overlapped and welded, the two vertical edges of the upper support 110 are located outside the two vertical edges of the lower support 120.

[0008] Furthermore, the upper support 110 and the lower support 120 are welded together by arc welding.

[0009] Furthermore, the arc weld bead between the upper support 110 and the lower support 120 is located on the outer side of the entire lifting lug structure 100.

[0010] Furthermore, both the upper support 110 and the lower support 120 are made of 980Mpa high-strength steel plate.

[0011] Furthermore, the U-shaped structures of both the upper support 110 and the lower support 120 are formed by bending.

[0012] Furthermore, both the upper support 110 and the lower support 120 are provided with lifting holes 130.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model provides a load-bearing lifting lug structure for an automotive battery pack. The lug structure is welded together from an upper bracket and a lower bracket, which are bent into shape. The process is simple and low-cost. It is made of 980Mpa high-strength steel plate, and the lugs are arc welded together on both sides before being welded to the battery pack. This evenly distributes the vertical tension from the lifting equipment onto the battery pack structure, ensuring the smooth lifting or lowering of the entire battery pack.

[0015] This utility model provides a load-bearing lifting lug structure for an automotive battery box. The lifting lug structure takes into account the concentrated stress generated during the hoisting process. Through the above structural design, the lifting lug can effectively distribute these stresses to the frame structure of the battery box, preventing deformation or damage caused by local overload.

[0016] This utility model provides a load-bearing lug structure for automotive battery boxes. The lug and connecting parts will not experience stress concentration, breakage, or permanent deformation. The actual load-bearing capacity is much greater than the maximum expected load under normal use conditions. Through CAE simulation analysis and comparison, the strength of this type of lug structure is much higher than that of aluminum profile lugs. Moreover, it is simple to form, low in cost, and its strength is much higher than that of traditional aluminum profile lugs. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the connection between a load-bearing lug structure and a battery box in one embodiment.

[0019] Figure 2 This is a structural schematic diagram of a load-bearing lug structure for an automotive battery box in one embodiment;

[0020] 100. Lifting lug structure; 110. Upper bracket; 120. Lower bracket; 130. Lifting hole;

[0021] 200. Battery housing. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] See Figure 1 This embodiment provides a load-bearing lug structure for an automotive battery box. The lug structure 100 is connected to the battery box 200, providing a safe lifting point for the lifting of the battery box 200.

[0024] The lifting lug structure 100 is a frame structure that is circumferentially closed and open at both ends. The open end face of the lifting lug structure 100 is welded to the side of the battery box 200.

[0025] See Figure 2 The lifting lug structure 100 is formed by splicing together an upper support 110 and a lower support 120 distributed vertically. Both the upper support 110 and the lower support 120 are constructed as U-shaped structures, and their opening directions are opposite to each other. The vertical edges of the upper support 110 and the lower support 120 overlap and are connected by arc welding.

[0026] In this embodiment, in order to improve the welding strength and stability of the upper support 110 and the lower support 120, and to reduce stress concentration, breakage or permanent deformation of the lifting lug structure 100 and the connecting parts, when the vertical edges of the upper support 110 and the lower support 120 are overlapped during welding, the two vertical edges of the upper support 110 are located outside the two vertical edges of the lower support 120; and the arc weld between the upper support 110 and the lower support 120 is located on the outer side of the entire lifting lug structure 100.

[0027] In this embodiment, in order to improve the overall strength of the lifting lug structure 100, both the upper support 110 and the lower support 120 are made of 980Mpa high-strength steel plate, and the U-shaped structures of the upper support 110 and the lower support 120 are integrally formed by bending.

[0028] To facilitate the lifting of the battery box 200, both the upper bracket 110 and the lower bracket 120 are provided with lifting holes 130.

[0029] This embodiment provides a manufacturing process for a load-bearing lug structure for an automotive battery pack:

[0030] First, the upper support 110 and the lower support 120 are integrally formed by bending to form a U-shaped structure, and the lifting hole 130 is opened on the upper support 110 and the lower support 120.

[0031] Then, the two vertical sides of the upper bracket 110 are set on the outside of the two vertical sides of the lower bracket 120. On the entire outer side of the lifting lug structure 100, the overlapping edges of the upper bracket 110 and the lower bracket 120 are welded together by arc welding to form the complete lifting lug structure 100.

[0032] Finally, the open end face of the complete lifting lug structure 100 is connected to the side of the battery box 200 by welding.

[0033] During the hoisting process of the battery box 200, the lifting equipment is connected to the lifting hole 130 of the lifting lug structure 100 to distribute the vertical tension evenly on the battery box 200, ensuring that the entire battery box 200 rises or falls smoothly without stress concentration, breakage or deformation, and preventing deformation or damage caused by local overload of the battery box 200.

[0034] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A load-bearing lug structure for an automotive battery box, wherein the lug structure (100) is connected to the battery box (200), characterized in that, The lifting lug structure (100) is a frame structure that is circumferentially closed and open at both ends. The open end face of the lifting lug structure (100) is welded to the side of the battery box (200). The lifting lug structure (100) is spliced ​​together by an upper support (110) and a lower support (120) distributed vertically. Both the upper support (110) and the lower support (120) are constructed as U-shaped structures, and their opening directions are opposite to each other. The vertical edges of the upper support (110) and the lower support (120) are welded together.

2. The load-bearing lug structure for an automotive battery box according to claim 1, characterized in that, When the vertical edges of the upper support (110) and the lower support (120) are overlapped and welded, the two vertical edges of the upper support (110) are located outside the two vertical edges of the lower support (120).

3. The load-bearing lug structure for an automotive battery box according to claim 1, characterized in that, The upper support (110) and the lower support (120) are welded together by arc welding.

4. The load-bearing lug structure for an automotive battery box according to claim 3, characterized in that, The arc weld bead between the upper support (110) and the lower support (120) is located on the outer side of the entire lifting lug structure (100).

5. The load-bearing lug structure for an automotive battery box according to claim 1, characterized in that, Both the upper support (110) and the lower support (120) are made of 980Mpa high-strength steel plate.

6. The load-bearing lug structure for an automotive battery box according to claim 5, characterized in that, The U-shaped structures of the upper support (110) and the lower support (120) are both formed by bending.

7. The load-bearing lug structure for an automotive battery box according to claim 1, characterized in that, Both the upper support (110) and the lower support (120) are provided with lifting holes (130).

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