Monomer cell tab protective sleeve

Abstract

The utility model provides a single cell tab protective sleeve, which relates to the technical field of lithium batteries, and comprises two cylinders, the two cylinders are provided with groove bodies wrapping pole pieces, the two cylinders are connected through a connecting part, and the opening directions of the two groove bodies are the same. According to the utility model, sleeving protection or separation can be conveniently carried out on the pole piece, the detection efficiency and convenience of the battery are improved, the pole piece is not polluted, and protection is carried out under the condition that the performance of the pole piece is not influenced; according to the utility model, the pole piece can be detected through the through hole under the condition that the pole piece is not disassembled; according to the utility model, the pole pieces at different intervals can be mounted, and the pole pieces of different battery packs can be sleeved and protected by adjusting the interval between the two column bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a single cell tab protection sleeve. Background Art

[0002] Performance verification of single lithium batteries requires large-scale testing. Common battery cell tabs are generally divided into copper tabs and aluminum tabs, with aluminum tabs being the majority, and the tabs are generally sheet-like structures. Contact between the positive and negative tabs of the battery cell will cause sparks and damage the battery cell. The shells of most battery cells are positively charged, so the negative tabs are generally wrapped with insulating tape. Daily protection of battery cell tabs is crucial, but the insulating tape is pasted on the tabs and may lose its stickiness and fall off when encountering high temperatures. After the tape is torn off, colloid will be left on the surface of the battery cell, which may affect the performance of the entire battery cell, and the colloid will affect the safety of the battery cell. At the same time, during inspections, it is necessary to tear off the tape on the tabs and break open the tabs to measure the polarity before pasting them again, which affects the inspection efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a single battery cell ear protection cover to protect the electrode to avoid the risk of ignition, while improving the convenience of taking and placing.

[0004] Based on the technical problems existing in the background technology, the utility model proposes a single-cell pole ear protection cover, including two columns, the two columns are provided with a groove body that wraps the pole piece, the two columns are connected by a connecting component, and the opening directions of the two groove bodies are the same.

[0005] Preferably, a chamfer is provided on the edge of the column located on the groove body.

[0006] Preferably, the connecting component is made of soft material.

[0007] Preferably, the connecting component is provided with a through hole.

[0008] Preferably, a receiving groove is further provided on the column, a slide bar is provided in the receiving groove, a connecting component is inserted into the receiving groove and connected to the slide bar, and a stopper is provided at the notch of the receiving groove to prevent the slide bar from sliding out of the receiving groove.

[0009] Preferably, the notch of the receiving groove is arranged on the side of the column.

[0010] Preferably, the sum of the depths of the two receiving grooves is greater than the length of the connecting component.

[0011] Compared with the prior art, the utility model proposes a single cell tab protective cover adopting the above technical solution to achieve the following technical effects:

[0012] The utility model can conveniently perform sleeve protection or detachment on the pole piece, improve the detection efficiency and convenience of the battery, and will not pollute the pole piece, and protect it without affecting the performance of the pole piece;

[0013] The utility model can detect the pole piece through the through hole without disassembly;

[0014] The utility model can cope with the installation of pole pieces with different spacings, and cope with the pole piece sleeve protection of different battery packs by adjusting the spacing between the two columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure of the first embodiment of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The overall structure of the first embodiment of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 3 It is a schematic diagram of the bottom structure of this utility model;

[0018] Figure 4 It is a front view of the utility model;

[0019] Figure 5 The overall structure of the second embodiment of the present utility model is shown in FIG. Figure 1 ;

[0020] Figure 6 The overall structure of the second embodiment of the present utility model is shown in FIG. Figure 2 ;

[0021] Figure 7 This is a schematic diagram of the separation structure of the second embodiment of the utility model Figure 1 ;

[0022] Figure 8 This is a schematic diagram of the separation structure of the second embodiment of the utility model Figure 2 ;

[0023] Fig. 9 This is a schematic diagram of the internal structure of the second embodiment of the present utility model.

[0024] In the figure: 1, column; 11, slot; 3, connecting part; 4, chamfer; 31, through hole; 12, storage slot; 5, slide rod; 121, notch; 6, stopper. DETAILED DESCRIPTION

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Embodiment 1

[0028] Please refer to Figure 1-Figure 9 The utility model provides a single cell tab protection cover, comprising two columns 1, the two columns 1 are provided with slots 11 for wrapping the pole pieces, the two columns 1 are connected by a connecting component 3, and the opening directions of the two slots 11 are the same. The two columns 1 are sheet-shaped, and the slots 11 inside them are rectangular parallelepiped slots. The connecting component 3 can be connected to the columns 1 to form a U-shape or an H-shape, and the distance between the two columns 1 can be extended by stretching the connecting component 3.

[0029] In a specific embodiment, refer to Figure 1-Figure 4 The column 1 is provided with a chamfer 4 on the edge of the slot 11. The slot 11 is used to wrap the pole piece, and the edge of the slot 11 is the position where the pole piece first contacts. The chamfer 4 is provided to facilitate the insertion of the pole piece.

[0030] In a specific embodiment, refer to Figure 1-Figure 4 The connecting component 3 is made of a soft material. The connecting component 3 can be made of a soft material and has elasticity. When the distance between the two pole pieces is far, the pole pieces can be sleeved by stretching the connecting component 3.

[0031] In a specific embodiment, refer to Figure 1-Figure 4 The connecting component 3 is provided with a through hole 31. The through hole 31 on the connecting component 3 can facilitate the insertion of a test pen and perform contact measurement on the electrode piece.

[0032] Embodiment 2

[0033] In the present invention, the two connecting parts 3 are elastic and can be stretched, and the distance between the two columns 1 can also be stretched by sliding and pulling.

[0034] In a specific embodiment, refer to Figure 5-Figure 9 The column 1 is also provided with a receiving groove 12, in which a slide bar 5 is provided, the connecting component 3 is inserted into the receiving groove 12 and connected with the slide bar 5, and a stopper 6 is provided at the notch 121 of the receiving groove 12 to prevent the slide bar 5 from sliding out of the receiving groove 12. The connecting component 3 is in the form of a sheet, and the connecting component 3 can be slidably retracted in the receiving groove 12. When the distance between the two columns 1 needs to be adjusted, the connecting component 3 can be pulled out to make the part of the connecting component 3 leaking out of the receiving groove 12 longer or shorter. The slide bar 5 is used to prevent the connecting component 3 from detaching from the column 1 when the connecting component 3 is pulled out.

[0035] In a specific embodiment, refer to Figure 5-Figure 9 , the notch 121 of the receiving groove 12 is arranged on the side of the column 1. The notch 121 of the receiving groove 12 can be located above, below or on the side of the column 1. In the present invention, when the connecting component 3 is pulled out, the bottom end of the connecting component 3 will be higher than the lower end of the column 1, which can avoid obstruction when it is put on the pole piece.

[0036] In a specific embodiment, refer to Figure 5-Figure 9 The sum of the depths of the two receiving grooves 12 is greater than the length of the connecting component 3. The depth of the receiving groove 12 is used to receive the connecting component 3.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A single cell tab protective cover, characterized in that: It comprises two columns (1), the two columns (1) are provided with slots (11) for wrapping pole pieces, the two columns (1) are connected via a connecting component (3), and the opening directions of the two slots (11) are the same.

2. The single cell tab protective cover according to claim 1, characterized in that: The column (1) is provided with a chamfer (4) on the edge of the trough (11).

3. The single cell tab protective cover according to claim 1, characterized in that: The connecting component (3) is made of soft material.

4. The single cell tab protective cover according to claim 1, characterized in that: The connecting component (3) is provided with a through hole (31).

5. The single cell tab protective cover according to claim 1, characterized in that: The column (1) is also provided with a receiving groove (12), a slide bar (5) is provided in the receiving groove (12), a connecting component (3) is inserted into the receiving groove (12) and connected to the slide bar (5), and a stopper (6) is provided at a notch (121) of the receiving groove (12) to prevent the slide bar (5) from sliding out of the receiving groove (12).

6. The single cell tab protective cover according to claim 5, characterized in that: The notch (121) of the receiving groove (12) is arranged on the side of the column (1).

7. The single cell tab protective cover according to claim 5, characterized in that: The sum of the depths of the two receiving grooves (12) is greater than the length of the connecting component (3).

Images