Cover plate and support structure capable of preventing welding explosion points

Abstract

The utility model relates to the technical field of battery manufacturing and processing, and discloses a cover plate and support structure capable of preventing welding explosion points, which is characterized by comprising a cover plate, a support, a cover plate assembly and an aluminum shell, grooves are arranged on two sides of the cover plate assembly, a positioning block is arranged on one side, close to the cover plate assembly, of the support, and the aluminum shell is arranged in the groove. The support is connected with the groove in a clamped mode through the positioning block and buckled on the two sides of the cover plate assembly, and the support and the cover plate assembly are connected into the aluminum shell in an inserted mode. According to the cover plate and support structure capable of preventing welding explosion points, the receding groove is formed in the support, so that foreign matter is prevented from being generated during scraping; the positioning block is transited to the avoiding groove through the chamfer, so that the strength and the stability of the support and cover plate assembly are ensured; and by forming the small bevel angle, explosion points caused by scraped foreign matters during welding are prevented, and then scrapping of battery seal welding is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing and processing, in particular to a cover plate and a bracket structure for preventing welding explosion points. Background Art

[0002] In the current battery manufacturing process, the cover plate and the bracket are key components of the battery structure, and their design has an important impact on the performance and safety of the battery. However, some battery products on the market currently have not made special optimization treatments in the design of the cover plate and the bracket, which leads to scratches during the buckling process, thereby generating foreign matter. These foreign matter pose a potential threat to the performance and safety of the battery. In the prior art, the bracket is buckled on both sides of the cover plate, and the positioning block ensures the positioning of the bracket to prevent movement. The bracket supports and prevents the pole ear from being inserted into the winding core. When buckled, the bracket surface and the cover plate corner are scratched, causing foreign matter to fall. When the shell is put into the shell after buckling, the top surface of the aluminum shell brings the foreign matter to the weld, forming an explosive point, which causes the battery to be scrapped. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a cover plate and a bracket structure for preventing welding explosion points, which solves the problem of foreign matter being produced by scratches when the bracket is buckled.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a cover plate and bracket structure for preventing welding explosion points, characterized in that it includes: a cover plate, a bracket, a cover plate assembly, and an aluminum shell, grooves are provided on both sides of the cover plate assembly, and a positioning block is provided on the side of the bracket close to the cover plate assembly. The bracket is clamped with the groove through the positioning block and snapped on both sides of the cover plate assembly. The bracket and the cover plate assembly are inserted into the aluminum shell, and corners of the cover plate assembly are provided on the left and right sides of the cover plate assembly, and the corners of the cover plate assembly are clamped with the aluminum shell.

[0005] Optionally, the connection between the aluminum shell and the cover plate assembly is a weld.

[0006] Optionally, a small bevel is formed at a corner of the cover assembly corresponding to the bracket positioning block, and the positioning block and the small bevel are located on the same axis.

[0007] Optionally, an avoidance groove is formed in an area other than the positioning block on a side where the bracket contacts the upper side of the cover assembly.

[0008] Optionally, the connection between the positioning block and the avoidance groove is chamfered.

[0009] The utility model provides a cover plate and a bracket structure for preventing welding explosion points. By providing an avoidance groove on the bracket, when the bracket and the cover plate assembly are buckled, the scratch problem can be effectively avoided and the generation of foreign matter can be reduced; by chamfering the transition positioning block to the avoidance groove, the strength and stability of the bracket and the cover plate assembly are ensured; at the same time, by providing a small bevel angle, foreign matter generated during the shell insertion process can be effectively prevented from being brought to the position of the weld by the top surface of the aluminum shell, thereby avoiding the influence of foreign matter generated by scratching on the welding process, improving the welding quality, reducing the incidence of welding explosion points, and thus reducing the scrapping of battery sealing welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the utility model after entering the shell;

[0012] Figure 3 It is a cross-sectional view and partial schematic diagram of the utility model after being put into the shell;

[0013] In the figure: 100, bracket; 200, cover assembly; 230, corner of cover assembly; 140, positioning block; 150, avoidance groove; 160, chamfer; 270, small bevel; 300, aluminum shell; 310, weld. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figures 1 to 3 The utility model provides a technical solution: a cover plate and bracket structure for preventing welding explosion points, characterized in that it includes: a cover plate, a bracket 100, a cover plate assembly 200, and an aluminum shell 300. Grooves are provided on both sides of the cover plate assembly 200. A positioning block 140 is provided on one side of the bracket 100 close to the cover plate assembly 200. The bracket 100 is clamped with the groove through the positioning block 140 and is buckled on both sides of the cover plate assembly 200. The bracket 100 and the cover plate assembly 200 are inserted into the aluminum shell 300. Corners 230 of the cover plate assembly are provided on the left and right sides of the cover plate assembly 200, and the corners 230 of the cover plate assembly are clamped with the aluminum shell 300.

[0016] The connection between the aluminum shell 300 and the cover assembly 200 is a weld 310 .

[0017] The side of the bracket 100 that contacts the upper side of the cover assembly 200 is provided with an avoidance groove 150 except for the positioning block 140 .

[0018] In this embodiment, the main function of the avoidance groove 150 is to avoid scratches during the buckling process of the bracket 100 and the cover assembly 200. In order to ensure that the opening position of the avoidance groove 150 is reasonable and effective, the avoidance groove 150 is opened on both sides of the positioning block 140. This reduces the contact area between the bracket 100 and the cover assembly 200 and reduces the possibility of friction.

[0019] The connection between the positioning block 140 and the avoidance groove 150 is a chamfer 160 .

[0020] In this embodiment, in order to ensure that the position of the positioning block 140 will not be lowered due to the opening of the avoidance groove 150, a transition design of chamfer 160 is adopted. Chamfer 160 can make the connection between the positioning block 140 and the avoidance groove 150 smoother and reduce stress concentration, thereby ensuring the strength of the positioning block 140 and improving the durability of the bracket 100.

[0021] A small bevel 270 is formed at the corner 230 of the cover assembly corresponding to the bracket positioning block 140 , and the positioning block 140 and the small bevel 270 are located on the same axis.

[0022] In this embodiment, in order to prevent foreign matter generated during the shell insertion process from being brought to the position of the weld 310 by the top surface of the aluminum shell 300, a small bevel 270 is opened at the corner 230 of the cover assembly corresponding to the bracket positioning block 140, which not only avoids the influence of foreign matter generated by scratches on the welding process, but also improves the welding quality and reduces the incidence of welding explosion points.

[0023] In the utility model, the working steps of the device are as follows:

[0024] An avoidance groove 150 is opened on the bracket 100, and the avoidance groove 150 is opened on both sides of the positioning block 140, that is, grooves are opened in areas other than the positioning block 140 on the bracket 100 to prevent scratches on other areas of the bracket except the positioning block 140 and the edge of the aluminum shell 300 when the bracket 100 is buckled. The positioning block 140 and the avoidance groove 150 are connected to form a chamfer 160 transition to ensure the strength of the positioning block 140; a small bevel 270 is opened at the corner 230 of the cover assembly corresponding to the bracket positioning block 140, and the small bevel 270 can prevent the positioning block 140 from scratching the edge of the aluminum shell 300, thereby avoiding the problem of welding explosion points caused by foreign matter generated by scratching.

[0025] The utility model provides a cover plate and a bracket structure for preventing welding explosion points. By providing an avoidance groove 150 on the bracket 100, when the bracket 100 is buckled with the cover plate assembly 200, the scratch problem can be effectively avoided and the generation of foreign matter can be reduced; by transitioning the positioning block 140 to the avoidance groove 150 through the chamfer 160, the strength and stability of the bracket 100 and the cover plate assembly 200 are ensured; at the same time, by providing a small bevel angle 270, it can effectively prevent foreign matter generated during the shell entry process from being brought to the position of the weld 310 by the top surface of the aluminum shell 300, avoid the influence of foreign matter generated by scratching on the welding process, improve the welding quality, reduce the incidence of welding explosion points, and thus reduce the scrapping of battery sealing welding.

[0026] Finally, 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 sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0027] The specific implementation methods provided by the utility model are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for general technicians in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A cover plate and support structure for preventing welding explosion points, characterized in that: include: A cover plate, a bracket (100), a cover plate assembly (200), and an aluminum shell (300); grooves are provided on both sides of the cover plate assembly (200); a positioning block (140) is provided on one side of the bracket (100) close to the cover plate assembly (200); the bracket (100) is clamped with the groove through the positioning block (140) and is buckled on both sides of the cover plate assembly (200); the bracket (100) and the cover plate assembly (200) are inserted into the aluminum shell (300); corners (230) of the cover plate assembly are provided on the left and right sides of the cover plate assembly (200); the corners (230) of the cover plate assembly are clamped with the aluminum shell (300).

2. A cover plate and support structure for preventing welding explosion points according to claim 1, characterized in that: The connection point between the aluminum shell (300) and the cover plate assembly (200) is a weld (310).

3. A cover plate and support structure for preventing welding explosion points according to claim 2, characterized in that: A small bevel (270) is formed at a corner (230) of the cover assembly corresponding to the bracket positioning block (140), and the positioning block (140) and the small bevel (270) are located on the same axis.

4. A cover plate and support structure for preventing welding explosion points according to claim 3, characterized in that: The area on the side of the bracket (100) that contacts the upper side of the cover assembly (200) except the positioning block (140) is provided with an avoidance groove (150).

5. A cover plate and support structure for preventing welding explosion points according to claim 4, characterized in that: The connection between the positioning block (140) and the avoidance groove (150) is a chamfer (160).

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