A power battery casing

Abstract

The utility model discloses a power battery casing, which belongs to the field of battery technology, and includes a base, wherein a shell cover is clamped on the upper part of the base, and the side of the shell cover is buckled with the base, and a pressure strip is fixedly connected to the side of the shell cover, and bolts are slidably inserted into the inside of the shell cover and the pressure strip, and the bolts are threadedly installed on the side of the base. The base includes a base body, and a buckle groove is provided on the side of the base body. The base also includes a baffle, and the baffle is fixedly connected to the side of the base body. The base also includes a guide block, and the guide block is fixedly connected to the upper end of the base body. The shell cover includes a cover body, a spring sheet and a buckle block. The bolts are unscrewed to loosen the pressure strip from the lower part of the shell cover, and then the shell cover is pulled upward to remove the shell cover. Conversely, the shell cover is re-jointed with the base, and then the bolts are tightened. By reducing the amount of bolts used, the docking stability of the base and the shell cover is ensured, and the difficulty of disassembling and assembling the base and the shell cover is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to a power battery casing. Background Art

[0002] A relatively large battery is composed of multiple sub-batteries, which are assembled in a battery casing to form a complete battery.

[0003] Some battery casings are assembled with multiple screws, and four or more screws need to be operated during disassembly; while one-way snap-on docking is used, it needs to be pried open during disassembly, which makes the disassembly and assembly of conventional battery casings more troublesome.

[0004] To this end, we propose a power battery housing to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that the conventional battery shell is troublesome to disassemble and assemble, and proposes a power battery shell.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A power battery housing includes a base, a shell cover is clamped on the upper part of the base, the side of the shell cover is buckled with the base, a pressure strip is fixedly connected to the side of the shell cover, bolts are slidably inserted into the shell cover and the pressure strip, and the bolts are threadedly installed on the side of the base. The bolts are unscrewed to loosen the pressure strip from the lower part of the shell cover, and then the shell cover is pulled upward to remove the shell cover, and vice versa, the shell cover is re-connected with the base, and then the bolts are tightened. By reducing the number of bolts used, the stability of the connection between the base and the shell cover is guaranteed, and the difficulty of disassembling the base and the shell cover is reduced.

[0008] Preferably, the base includes a base body, and a buckle groove is provided on the side of the base body. The shell cover is clamped on the base body, the side of the shell cover is buckled into the buckle groove, and then the bolt is passed through the shell cover and tightened in the base body, so as to facilitate the docking installation of the base and the shell cover.

[0009] Preferably, the base further comprises a baffle, which is fixedly connected to the side of the base body. The baffle is used to block the outside of the shell cover to prevent the shell cover from deforming outward, thereby improving the stability of the lower structure of the shell cover.

[0010] Preferably, the base further comprises a guide block, which is fixedly connected to the upper end of the base body. When the shell cover is clamped on the base, the guide block is inserted along the lower opening of the shell cover to facilitate the alignment of the shell cover with the base.

[0011] Preferably, the shell cover comprises a cover body, a spring sheet and a buckle block, wherein the spring sheet is symmetrically fixedly connected to the lower part of the cover body, and the buckle block is fixedly connected to the lower part of the base. When the buckle block is inserted into the buckle groove, the spring sheet is deformed outward, and when the buckle block is flush with the buckle groove, the buckle block is buckled into the buckle groove by the elastic force of the spring sheet, so that the buckle block and the buckle groove are buckled conveniently.

[0012] Preferably, a fixing groove is provided at the lower part of the spring sheet, so as to increase the stability between the shell cover and the pressure strip.

[0013] Preferably, the pressure strip includes a mounting ring and a strip body, and the strip body is symmetrically fixedly connected to the side end of the mounting ring. The bolt is passed through the mounting ring and the spring sheet, and then screwed into the seat body, and the bolt acts on the mounting ring, the mounting ring acts on the strip body, and the strip body acts on the spring sheet, so as to facilitate stabilizing the closed state of the spring sheet.

[0014] In summary, the technical effects and advantages of the utility model are as follows:

[0015] 1. Unscrew the bolts to loosen the lower part of the shell cover with the pressure strip, then pull the shell cover upward to remove it. Otherwise, re-connect the shell cover to the base and tighten the bolts. By reducing the number of bolts used, the stability of the connection between the base and the shell cover is guaranteed, and the difficulty of disassembling the base and the shell cover is reduced.

[0016] 2. Clip the shell cover onto the base so that the side of the shell cover fits into the buckle groove, then pass the bolts through the shell cover and tighten them into the base to facilitate docking and installation of the base and shell cover.

[0017] 3. When clamping the shell cover on the base, use the guide block to insert it along the lower opening of the shell cover to facilitate the alignment of the shell cover and the base.

[0018] 4. When the buckle block is inserted into the buckle slot, the spring sheet is deformed outward. When the buckle block is flush with the buckle slot, the elastic force of the spring sheet is used to drive the buckle block into the buckle slot, making it convenient for the buckle block and the buckle slot to be buckled.

[0019] 5. Pass the bolt through the mounting ring and the spring sheet, and then screw the bolt into the seat body. Use the bolt to act on the mounting ring, the mounting ring to act on the bar body, and the bar body to act on the spring sheet, so as to stabilize the closed state of the spring sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the base structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the shell structure of the utility model;

[0023] Figure 4It is a schematic diagram of the layering structure of the utility model.

[0024] In the figure: 1, bolt; 2, base; 3, shell cover; 4, pressure strip; 21, seat body; 22, stop strip; 23, guide block; 24, buckle groove; 31, cover body; 32, spring piece; 33, buckle block; 34, fixing groove; 41, mounting ring; 42, strip body. DETAILED DESCRIPTION

[0025] The technical solutions in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, rather than all of the embodiments.

[0026] Reference Figure 1 The present embodiment provides a power battery housing, which includes a base 2, a shell cover 3 is clamped on the upper part of the base 2, the side of the shell cover 3 is buckled with the base 2, the side of the shell cover 3 is fixedly connected with a pressure strip 4, and bolts 1 are slidably inserted into the inside of the shell cover 3 and the pressure strip 4, and the bolts 1 are threadedly installed on the side of the base 2.

[0027] Reference Figure 1 and Figure 2 The base 2 includes a base body 21, a bolt 1 is threadedly mounted on the side of the base body 21, and a buckle groove 24 is provided on the side of the base body 21. The shell cover 3 is clamped on the base body 21, so that the side of the shell cover 3 is buckled into the buckle groove 24, and then the bolt 1 is passed through the shell cover 3 and tightened in the base body 21.

[0028] Reference Figure 1 and Figure 2 The base 2 also includes a baffle 22, which is fixedly connected to the side of the base body 21. The baffle 22 is used to block the outside of the shell cover 3 to prevent the shell cover 3 from deforming outward.

[0029] Reference Figure 1 and Figure 2 The base 2 further includes a guide block 23, which is fixedly connected to the upper end of the base body 21. When the shell cover 3 is clamped on the base 2, the guide block 23 is inserted along the lower opening of the shell cover 3 to guide the shell cover 3 to align with the base 2.

[0030] Reference Figure 1 , Figure 2 and Figure 3 The shell cover 3 includes a cover body 31, a spring piece 32 and a buckle block 33. The buckle block 33 is buckled in the buckle groove 24. The stop bar 22 blocks the outer end of the cover body 31. The spring piece 32 is symmetrically fixedly connected to the lower part of the cover body 31, and the buckle block 33 is fixedly connected to the lower part of the base 2. When the buckle block 33 is inserted into the buckle groove 24, the spring piece 32 is deformed outward. When the buckle block 33 is flush with the buckle groove 24, the buckle block 33 is buckled into the buckle groove 24 by the elastic force of the spring piece 32.

[0031] Reference Figure 1 and Figure 3 A fixing groove 34 is provided at the lower part of the spring piece 32. The fixing groove 34 is used to fix the pressure strip 4.

[0032] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The pressure strip 4 includes a mounting ring 41 and a strip body 42. The mounting ring 41 and the strip body 42 are glued and fixed in the fixing groove 34. The strip body 42 is symmetrically fixedly connected to the side end of the mounting ring 41. The bolt 1 passes through the mounting ring 41 and the spring sheet 32, and then the bolt 1 is screwed into the seat body 21. The bolt 1 acts on the mounting ring 41, acts on the strip body 42 through the mounting ring 41, and acts on the spring sheet 32 ​​through the strip body 42.

[0033] Working principle: Unscrew the bolt 1 to loosen the pressure strip 4 from the lower part of the shell cover 3, then pull the shell cover 3 upward to remove it, and vice versa, re-join the shell cover 3 with the base 2, and then tighten the bolt 1. By reducing the number of bolts 1 used, the stability of the joint between the base 2 and the shell cover 3 is ensured.

[0034] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical scheme and utility model concept of the utility model, which should be covered by the protection scope of the utility model.

[0035] The description briefly mentions the application direction of the utility model for the prior art that is known to those skilled in the art and has not been changed, and combines it with the utility model to form a complete technology; the description avoids over-popularizing the technology familiar to those skilled in the art, and is used to assist those skilled in the art to quickly understand the main content of the utility model.

Claims

1. A power battery housing, characterized in that: The invention comprises a base (2), a shell cover (3) is clamped on the upper part of the base (2), the side of the shell cover (3) is buckled with the base (2), the side of the shell cover (3) is fixedly connected with a pressure strip (4), bolts (1) are slidably inserted into the inside of the shell cover (3) and the pressure strip (4), and the bolts (1) are threadedly installed on the side of the base (2).

2. A power battery casing according to claim 1, characterized in that: The base (2) comprises a base body (21), and a buckle groove (24) is provided on the side of the base body (21).

3. A power battery casing according to claim 2, characterized in that: The base (2) further comprises a retaining bar (22), wherein the retaining bar (22) is fixedly connected to the side of the base body (21).

4. A power battery casing according to claim 2, characterized in that: The base (2) also includes a guide block (23), and the guide block (23) is fixedly connected to the upper end of the base body (21).

5. The power battery housing according to claim 1, characterized in that: The shell cover (3) comprises a cover body (31), a spring sheet (32) and a buckle block (33); the spring sheet (32) is symmetrically fixedly connected to the lower part of the cover body (31); and the buckle block (33) is fixedly connected to the lower part of the base (2).

6. A power battery casing according to claim 5, characterized in that: A fixing groove (34) is formed at the lower part of the spring sheet (32).

7. A power battery casing according to claim 1, characterized in that: The pressure strip (4) comprises a mounting ring (41) and a strip body (42), wherein the strip body (42) is symmetrically fixedly connected to the side end of the mounting ring (41).

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