Lithium battery plastic bracket

Abstract

The utility model discloses a plastic bracket for a lithium battery, which relates to the technical field of lithium battery cover plates, aims to solve the technical problem that the cost is increased due to the fact that the lithium battery cover plates are fixed by ultrasonic welding at present, and comprises a plastic bracket assembly with a lithium battery cover plate assembly at the top, the lithium battery cover plate assembly comprises a lithium battery cover plate body, a plurality of blind holes can be formed in the bottom of the lithium battery cover plate body, flanging grooves are formed in the bottoms of the two sides of the inner wall of each blind hole and extend towards the interior of the lithium battery cover plate body, and an extrusion part is fixedly arranged in the middle of the bottom of the inner wall of each blind hole. The plastic support assembly comprises a plastic support body, plastic bosses are fixedly arranged at the four corners of the top of the plastic support body, a conical groove is formed in the center of the bottom end of each plastic boss, and flanging parts used for being pressed to be turned outwards and clamped into the flanging grooves are formed in the positions, located on the two sides of the conical grooves, of the bottom ends of the plastic bosses. The lithium battery cover plate has the advantage that the installation cost of the lithium battery cover plate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery cover plates, and more specifically, to a plastic bracket for a lithium battery. Background Art

[0002] The lithium battery cover plate is a key component in the lithium battery structure, mainly located at the top of the battery, and jointly forms the encapsulation structure of the battery with the battery housing. It is not only a protective layer of the battery, but also bears multiple functions, and has an important impact on the performance, safety and service life of the battery.

[0003] The lithium battery cover plate bracket, as an important part of the lithium battery structure, mainly undertakes the functions of supporting and fixing the lithium battery cover plate.

[0004] At present, for the lithium battery cover plate, the traditional fixing method is to weld the lithium battery cover plate and the plastic bracket together through ultrasonic welding technology to achieve the fixation of the lithium battery cover plate. However, using this method to fix the lithium battery cover plate requires the assistance of ultrasonic welding equipment, resulting in a significant increase in the installation cost of the lithium battery cover plate. In view of this, we propose a plastic bracket for a lithium battery. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a plastic bracket for a lithium battery to solve the technical problem that the current use of ultrasonic welding to fix the lithium battery cover plate will lead to an increase in cost.

[0006] To solve the above technical problems, the utility model provides the following technical solution: a plastic bracket for a lithium battery, including a plastic bracket assembly with a lithium battery cover plate assembly arranged on the top;

[0007] The lithium battery cover plate assembly includes a lithium battery cover plate body with a plurality of blind holes formed by opening at the bottom. Flanging grooves are formed by extending towards the inside of the lithium battery cover plate body at the bottom on both sides of the inner wall of the blind hole, and a pressing component is fixedly arranged in the middle at the bottom of the inner wall of the blind hole;

[0008] The plastic bracket assembly includes a plastic bracket body with plastic bosses fixedly arranged at the four corners of the top. A conical groove body is formed by opening in the middle at the bottom end of the plastic boss, and flanging parts for being pressed and turned outwards to be clamped into the flanging grooves are formed on both sides of the bottom end of the plastic boss at the conical groove body, and anti-slip components for cooperating with the pressing component to achieve a top-pushing anti-slip effect are arranged on both sides of the inner wall of the conical groove body.

[0009] The utility model designs a blind hole, a flanging groove, a squeezing component, a plastic boss, a conical groove body and a flanging part. By applying an external force to squeeze between the plastic bracket assembly and the lithium battery cover plate assembly, the squeezing component can be made to extend into the conical groove body and squeeze the plastic boss. At the same time, the flanging part extends into the blind hole. Under the squeezing effect of the squeezing component, the flanging part is forced to turn outwards and deform and snap into the flanging groove, so as to realize the connection and fixation of the lithium battery cover plate assembly and the plastic bracket assembly, without the need to use ultrasonic welding.

[0010] Preferably, the squeezing component includes a conical boss fixedly arranged at the bottom of the inner wall of the blind hole in the center.

[0011] Preferably, the included angle between the two sides of the conical boss relative to its central position is smaller than the included angle between the two sides of the inner wall of the conical groove body relative to its central position.

[0012] Preferably, the anti-slip component includes a plastic anti-slip sheet. The plastic anti-slip sheet is in a strip structure, and a bending part is formed in the middle of the plastic anti-slip sheet. One end of the plastic anti-slip sheet is fixedly connected to the inner wall of the conical groove body, and the other end of the plastic anti-slip sheet abuts against the conical boss movably.

[0013] Preferably, an arc angle part is formed at the top of the inner wall of the conical groove body.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model designs a blind hole, a flanging groove, a squeezing component, a plastic boss, a conical groove body and a flanging part. By applying an external force to squeeze between the plastic bracket assembly and the lithium battery cover plate assembly, the squeezing component can be made to extend into the conical groove body and squeeze the plastic boss. At the same time, the flanging part extends into the blind hole. Under the squeezing effect of the squeezing component, the flanging part is forced to turn outwards and deform and snap into the flanging groove, so as to realize the connection and fixation of the lithium battery cover plate assembly and the plastic bracket assembly, without the need to use ultrasonic welding, which is beneficial to reducing the installation cost of the lithium battery cover plate and solves the problem that the cost will increase when using ultrasonic welding to fix the lithium battery cover plate.

[0016] 2. The utility model also designs an anti-slip component and forms a bending part in the middle of the plastic anti-slip sheet. During the process of squeezing and fixing the lithium battery cover plate assembly and the plastic bracket assembly, the anti-slip components located on both sides of the inner wall of the conical groove body respectively abut against both sides of the conical boss, which can play a positioning role. And as the squeezing progresses, the conical boss will force the plastic anti-slip sheet to bend and deform at the position of the bending part, and press the flanging part and the conical boss after the flanging part turns outwards and snaps into the flanging groove. Thus, under the pressure of the plastic anti-slip sheet, the fixing effect of the flanging part turning outwards and snapping into the flanging groove can be improved, thereby improving the stability of the connection and fixation of the lithium battery cover plate assembly and the plastic bracket assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the present utility model;

[0018] Figure 2 is a disassembled schematic view of the lithium battery cover assembly and the plastic bracket assembly of the present utility model;

[0019] Figure 3 is a schematic structural view of the lithium battery cover assembly and the plastic bracket assembly of the present utility model before fixation;

[0020] Figure 4 is a schematic structural view of the lithium battery cover assembly and the plastic bracket assembly of the present utility model after fixation;

[0021] Figure 5 is the present utility model Figure 3 an enlarged schematic view of the structure at A in;

[0022] Figure 6 is the present utility model Figure 4 an enlarged schematic view of the structure at B in.

[0023] Description of the reference numerals in the figures:

[0024] 1. Lithium battery cover assembly; 101. Lithium battery cover body; 102. Blind hole; 103. Flanging groove; 104. Conical boss; 2. Plastic bracket assembly; 201. Plastic bracket body; 202. Plastic boss; 203. Conical groove; 204. Arc corner part; 205. Plastic anti-slip sheet; 206. Bending part; 207. Flanging part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] As Figures 1-6 shown, a lithium battery plastic bracket related to the present utility model includes a plastic bracket assembly 2 with a lithium battery cover assembly 1 arranged on the top. The lithium battery cover assembly 1 includes a lithium battery cover body 101 at the bottom where a plurality of blind holes 102 can be formed by opening. On both sides of the bottom of the inner wall of the blind hole 102, flanging grooves 103 extend towards the inside of the lithium battery cover body 101, and a pressing member is fixedly arranged in the middle of the bottom of the inner wall of the blind hole 102. The plastic bracket assembly 2 includes a plastic bracket body 201 with plastic bosses 202 fixedly arranged at the four corners of the top. A conical groove 203 is formed by opening in the middle of the bottom end of the plastic boss 202, and flanging parts 207 for being pressed and turned outwards to be clamped into the flanging grooves 103 are formed on both sides of the bottom end of the plastic boss 202 located on both sides of the conical groove 203. Anti-slip members for cooperating with the pressing member to achieve a top-pushing anti-slip effect are arranged on both sides of the inner wall of the conical groove 203.

[0026] In the embodiment of the present utility model, as Figure 5As shown, the extrusion component includes a conical boss 104 fixedly arranged in the center at the bottom of the inner wall of the blind hole 102. The angle between the two sides of the conical boss 104 relative to its central position is smaller than the angle between the two sides of the inner wall of the conical groove 203 relative to its central position. An arc corner 204 is formed at the top of the inner wall of the conical groove 203.

[0027] In the embodiment of the present utility model, as Figure 5 and Figure 6 shown, the anti-slip component includes a plastic anti-slip sheet 205. The plastic anti-slip sheet 205 is in a strip structure, and a bending part 206 is formed in the middle of the plastic anti-slip sheet 205. One end of the plastic anti-slip sheet 205 is fixedly connected to the inner wall of the conical groove 203, and the other end of the plastic anti-slip sheet 205 abuts against the conical boss 104 movably.

[0028] Working principle: This embodiment provides a plastic bracket for a lithium battery. When in use, first, an external force is applied to squeeze between the plastic bracket assembly 2 and the lithium battery cover plate assembly 1, so that the extrusion component extends into the conical groove 203 and squeezes the plastic boss 202. At the same time, the flanging part 207 extends into the blind hole 102. The anti-slip components located on both sides of the inner wall of the conical groove 203 respectively abut against both sides of the conical boss 104, which can play a positioning effect. And as the extrusion progresses, under the extrusion effect of the extrusion component, the flanging part 207 is forced to turn outwards and deform and snap into the flanging groove 103. And the conical boss 104 will force the plastic anti-slip sheet 205 to bend and deform at the position of the bending part 206, and after the flanging part 207 turns outwards and snaps into the flanging groove 103, it presses on the flanging part 207 and the conical boss 104. Thus, under the pressure of the plastic anti-slip sheet 205, the fixing effect of the flanging part 207 turning outwards and snapping into the flanging groove 103 can be improved, so as to realize the connection and fixation of the lithium battery cover plate assembly 1 and the plastic bracket assembly 2.

[0029] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model according to the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A lithium battery plastic bracket, characterized in that: It comprises a plastic support assembly (2) with a lithium battery cover assembly (1) arranged on the top; The lithium battery cover plate assembly (1) comprises a lithium battery cover plate body (101) having a plurality of blind holes (102) formed at the bottom, the bottom of the inner walls of the blind holes (102) extending toward the inside of the lithium battery cover plate body (101) are provided with flange grooves (103), and a compression component is fixedly provided at the center of the bottom of the inner wall of the blind holes (102); The plastic bracket assembly (2) comprises a plastic bracket body (201) with plastic bosses (202) fixedly arranged at the four corners of the top, a conical groove body (203) is centrally formed at the bottom end of the plastic boss (202), and flanged portions (207) for being pressed and turned outward and inserted into the flanged groove (103) are formed on both sides of the bottom end of the plastic boss (202) and located at the conical groove body (203). The inner wall of the conical groove body (203) is provided with anti-skid components on both sides that cooperate with the pressing component to achieve a push-up anti-skid effect.

2. A lithium battery plastic bracket according to claim 1, characterized in that: The pressing component comprises a conical boss (104) centrally fixedly arranged at the bottom of the inner wall of the blind hole (102).

3. A lithium battery plastic bracket according to claim 2, characterized in that: The angle between the two sides of the conical boss (104) and its center position is smaller than the angle between the two sides of the inner wall of the conical trough body (203) and its center position.

4. A lithium battery plastic bracket according to claim 1, characterized in that: The anti-slip component comprises a plastic anti-slip sheet (205), the plastic anti-slip sheet (205) is in a strip-shaped structure, and a bent portion (206) is formed in the middle of the plastic anti-slip sheet (205), one end of the plastic anti-slip sheet (205) is fixedly connected to the inner wall of the conical groove body (203), and the other end of the plastic anti-slip sheet (205) is movably abutted against the conical boss (104).

5. A lithium battery plastic bracket according to claim 1, characterized in that: An arc corner portion (204) is formed at the top of the inner wall of the conical trough body (203).

Images