Lithium battery tab mounting structure

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a lithium battery tab mounting structure which comprises a battery body and a tab body, a plurality of connecting columns are arranged at one end of the battery body, annular clamping grooves are formed in the side walls of the connecting columns, inserting holes corresponding to the connecting columns are formed in the tab body, and the connecting columns are inserted into the inserting holes. An insertion hole is formed in the side wall of the tab body, a sliding groove penetrating through the insertion hole is formed in the side wall of the tab body, a push plate is slidably connected into the sliding groove, a strip-shaped through groove is formed in the push plate, an arc-shaped clamping plate is fixedly connected to the side wall of one end of the strip-shaped through groove, and the connection column is inserted into the insertion hole and the strip-shaped through groove. The arc-shaped clamping plate is inserted into the annular clamping groove, and an elastic assembly is arranged between the push plate and the sliding groove. The detachable connection of the tab body and the battery body is realized, the integrity of the battery body is kept, and the problems that the battery capacity is reduced and the energy density is reduced are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and more specifically to a lithium battery pole ear mounting structure. Background Art

[0002] Lithium batteries are usually installed in a casing, and then the positive and negative terminals are connected respectively.

[0003] The existing Chinese utility model patent with announcement number CN220341461U discloses an easy-to-install lithium battery tab structure, including a battery body and a tab body, the tab body is located at the front and rear ends of the battery body, and the outer walls of the front and rear sides of the battery body are provided with multiple threaded holes. A stretchable fixing plate is connected to the middle of the outer walls of the front and rear sides of the battery body, and the outer wall of the tab body is provided with multiple connecting holes. A stud is connected inside each connecting hole, and the stud extends into the threaded hole for threaded connection. A through groove connected to the fixing plate is provided in the middle of the outer wall of the tab body, and the fixing plate passes through the through groove, so that the tab body is firmly connected to the battery body.

[0004] However, the battery body is provided with a stretching groove for accommodating a fixed shaft connected to a fixed plate. The stretching groove will occupy a portion of the space inside the battery, resulting in a reduction in active materials for storing electrical energy, a reduction in the capacity of the battery, and a decrease in the energy density, which will limit the use of the battery in certain application scenarios. In addition, the structural integrity of the battery may be affected. The battery will experience expansion and contraction during the charging and discharging process. The presence of the stretching groove may increase the stress concentration of the battery during these processes, thereby weakening the mechanical strength of the battery. In the long run, it may lead to structural failure or performance degradation of the battery. Utility Model Content

[0005] The utility model aims to provide a lithium battery tab installation structure, which realizes the detachable connection between the tab body and the battery body, preserves the integrity of the battery body, and avoids the problems of reduced battery capacity and reduced energy density.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A lithium battery tab installation structure comprises a battery body and a tab body, wherein one end of the battery body is provided with a plurality of connecting posts, the side walls of the connecting posts are provided with an annular groove, the tab body is provided with a socket corresponding to the connecting posts, the side walls of the tab body are provided with a slide groove penetrating the socket, a push plate is slidably connected in the slide groove, a strip through groove is provided on the push plate, an arc-shaped card plate is fixedly connected to the side wall of one end of the strip through groove, the connecting posts are inserted in the socket and the strip through groove, the arc-shaped card plate is inserted in the annular groove, and an elastic component is provided between the push plate and the slide groove.

[0008] Furthermore, the connecting column and the socket are interference fit.

[0009] Furthermore, the elastic component is a spring, and two ends of the spring are respectively connected to the push plate and the slide groove.

[0010] Furthermore, a limiting groove is provided on the side wall of the slide groove, and a limiting block is provided on the side wall of the push plate, and the limiting block is slidably connected to the limiting groove.

[0011] Furthermore, the connecting column and the socket are symmetrically arranged on both sides of the battery body and the tab body respectively.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The arc-shaped clamping plate and the annular clamping groove structure realize the detachable connection between the pole ear body and the battery body, which is convenient for disassembly and installation of the pole ear body; the utility model preserves the integrity of the battery body and avoids the problems of reduced battery capacity and decreased energy density. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the partial structure of the battery body in the utility model;

[0016] Figure 3 It is a partial structural schematic diagram of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the push plate in the utility model.

[0018] 1. Battery body; 2. Tab body; 201. Socket; 202. Slide; 203. Limiting groove; 3. Connecting column; 301. Annular slot; 4. Push plate; 401. Strip slot; 41. Arc-shaped card plate; 42. Limiting block; 5. Elastic component. DETAILED DESCRIPTION

[0019] like Figures 1 to 4As shown, a lithium battery tab installation structure comprises a battery body 1 and a tab body 2, characterized in that: a plurality of connecting posts 3 are arranged at one end of the battery body 1, an annular groove 301 is provided on the side wall of the connecting post 3, a plug hole 201 corresponding to the connecting post 3 is provided on the tab body 2, a slide groove 202 penetrating the plug hole 201 is provided on the side wall of the tab body 2, a push plate 4 is slidably connected in the slide groove 202, a strip through groove 401 is provided on the push plate 4, an arc-shaped clamping plate 41 is fixedly connected to the side wall of one end of the strip through groove 401, the connecting post 3 is inserted in the plug hole 201 and the strip through groove 401, the arc-shaped clamping plate 41 is inserted in the annular groove 301, and an elastic component 5 is provided between the push plate 4 and the slide groove 202.

[0020] The connecting column 3 is interference fit with the insertion hole 201 .

[0021] The elastic component 5 is a spring, and two ends of the spring are connected to the push plate 4 and the slide groove 202 respectively.

[0022] A limiting groove 203 is provided on the side wall of the slide groove 202 , and a limiting block 42 is provided on the side wall of the push plate 4 , and the limiting block 42 is slidably connected to the limiting groove 203 .

[0023] The connecting column 3 and the plug hole 201 are symmetrically arranged on both sides of the battery body 1 and the tab body 2 respectively.

[0024] Working principle:

[0025] During installation, the connecting column 3 is inserted into the insertion hole 201 and the strip-shaped through groove 401. Under the action of the spring, the arc-shaped clamping plate 41 is clamped in the annular clamping groove 301 to limit the connecting column 3, so that the pole ear body 2 can be installed on the battery body 1; during disassembly, the push plate 4 is pushed, the spring is compressed, and the arc-shaped clamping plate 41 is away from the annular clamping groove 301. At this time, the pole ear body 2 can be pulled out from the connecting column 3 to complete the disassembly; the utility model preserves the integrity of the battery body and avoids the problems of reduced battery capacity and reduced energy density.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A lithium battery tab mounting structure, comprising a battery body (1) and a tab body (2), characterized in that: A plurality of connecting posts (3) are provided at one end of the battery body (1), an annular groove (301) is provided on the side wall of the connecting post (3), a plug hole (201) corresponding to the connecting post (3) is provided on the tab body (2), a slide groove (202) penetrating the plug hole (201) is provided on the side wall of the tab body (2), a push plate (4) is slidably connected in the slide groove (202), a strip-shaped through groove (401) is provided on the push plate (4), an arc-shaped clamping plate (41) is fixedly connected to the side wall of one end of the strip-shaped through groove (401), the connecting post (3) is inserted into the plug hole (201) and the strip-shaped through groove (401), the arc-shaped clamping plate (41) is inserted into the annular groove (301), and an elastic component (5) is provided between the push plate (4) and the slide groove (202).

2. The lithium battery tab mounting structure according to claim 1, characterized in that: The connecting column (3) and the insertion hole (201) are interference fit.

3. The lithium battery tab mounting structure according to claim 1, characterized in that: The elastic component (5) is a spring, and two ends of the spring are respectively connected to the push plate (4) and the slide groove (202).

4. The lithium battery tab mounting structure according to claim 1, characterized in that: A limiting groove (203) is provided on the side wall of the sliding groove (202), and a limiting block (42) is provided on the side wall of the push plate (4), and the limiting block (42) is slidably connected to the limiting groove (203).

5. The lithium battery tab mounting structure according to claim 1, characterized in that: The connecting column (3) and the plug hole (201) are symmetrically arranged on both sides of the battery body (1) and the tab body (2), respectively.

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