Welding tool for arc-shaped battery

Abstract

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a welding tool for an arc-shaped battery, which comprises an arc-shaped supporting plate and a welding copper block, an arc-shaped positioning groove matched with a battery cell is arranged on the arc-shaped supporting plate, a groove used for fixing the welding copper block is arranged on one side of the arc-shaped supporting plate, and the welding copper block is arranged in the groove. The welding copper block is fixed in the groove, the welding copper block is provided with a welding area, and a magnet is embedded in the welding area. According to the utility model, the welding end can be tightly attached to the tab end of the battery cell, so that the welding efficiency is improved while the tight combination of the two metal sheets is ensured and the welding effect is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium-ion batteries, and particularly relates to a welding tool for arc-shaped batteries. Background Art

[0002] With the gradual expansion of the application scope of polymer soft-pack lithium-ion batteries, the demand for special-shaped soft-pack batteries in the 3C market continues to increase. Among the many special-shaped soft-pack batteries, curved batteries are a new type of lithium-ion battery. Compared with traditional flat lithium batteries, the curved battery structure enables the battery to better adapt to complex spatial structures. It is widely used in wireless smart wearable devices and is an important trend in future battery technology with broad application prospects.

[0003] Wearable devices require high safety performance for battery cells, requiring PTC (thermal fuse) welding to prevent safety hazards caused by overheating of the battery cells. In existing technologies, the arc-shaped battery cell's tabs and welding ends (PTC) do not easily fit together, which easily leads to cold solder joints. Utility Model Content

[0004] The purpose of the utility model is to provide a welding tool for arc-shaped batteries to solve the technical problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding tool for arc-shaped batteries, comprising an arc-shaped support plate and a welding copper block, wherein the arc-shaped support plate is provided with an arc-shaped positioning groove adapted to the battery cell, and a groove for fixing the welding copper block is provided on one side of the arc-shaped support plate, the welding copper block is fixed in the groove, and the welding copper block is provided with a welding area, and the welding area is inlaid with a magnet.

[0006] Preferably, there are two grooves, which respectively correspond to the two tabs of the battery cell, and the welding copper blocks are embedded in the corresponding grooves.

[0007] Preferably, a welding area is provided on each side of the welding copper block.

[0008] Preferably, a step is provided on the outer side of the welding area.

[0009] Preferably, a sunken groove is provided in the middle of the arc-shaped supporting plate.

[0010] Preferably, a positioning block is fixed to the other side of the arc-shaped supporting plate.

[0011] Preferably, a strip-shaped adjustment hole is provided on the positioning block, and an adjustment bolt passes through the strip-shaped adjustment hole to fix the positioning block on the arc-shaped supporting plate.

[0012] Preferably, the arc-shaped supporting plate is provided with a nameplate groove.

[0013] The beneficial effect of the present invention is that the present invention can closely fit the welding end to the tab end of the battery core, ensuring that the two metal sheets are closely combined to ensure the welding effect while improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a three-dimensional diagram of the welded copper block in the present utility model;

[0016] Figure 3 It is a partial enlarged view of the utility model;

[0017] Figure 4 This is an application diagram of the utility model. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0019] like Figure 1-Figure 3 As shown, a welding tool for arc-shaped batteries includes an arc-shaped support plate 1 and a welding copper block 2. The arc-shaped support plate is provided with an arc-shaped positioning groove 3 adapted to the battery cell. The arc-shaped positioning groove has an arc surface with the same bending angle as the battery cell, and the angle is not limited. A sunken groove 8 is provided in the middle to facilitate manual handling. A positioning block 9 is fixed to the other side of the arc-shaped support plate. The positioning block is used to limit one side of the battery cell to facilitate accurate welding of the battery cell. In order to adjust the positioning block to suit different types of battery cells, a strip adjustment hole 10 is provided on the positioning block. The adjusting bolt passes through the strip adjustment hole to fix the positioning block to the arc-shaped support plate. The position of the positioning block can be adjusted through the strip adjustment hole.

[0020] In order to facilitate the welding of the pole tabs, a groove 4 for fixing the welding copper block is provided on one side of the arc-shaped support plate. The welding copper block is fixed in the groove. The welding copper block is provided with a welding area 5, and the welding area is inlaid with a magnet 6. The magnet can make the pole tab and the welding end fit better. Usually, the welding end is made of metal material, which can be adsorbed by the magnet. When welding, the pole tab is first placed in the welding area, and then the welding end is placed on the pole tab. Under the action of the magnet, the welding end presses the pole tab downward tightly, so that the welding end and the pole tab are tightly fitted together, and finally welding is performed, which can greatly improve the welding quality.

[0021] In this embodiment, only a single tab is welded, so there is only one groove with a welding copper block. In some cases, both tabs need to be welded. For this purpose, there are two grooves, which correspond to the two tabs of the battery cell respectively, and the welding copper blocks are embedded in the corresponding grooves.

[0022] Furthermore, since the welding area will wear out after welding for a period of time, in this embodiment, a welding area is provided on both sides of the welding copper block, with 180° symmetry, so that when one side wears out, it can be flipped for use.

[0023] The outside of the welding area is provided with a step 7 to avoid the tab glue.

[0024] The arc-shaped supporting plate is provided with a nameplate slot 11. Different nameplates are affixed to the nameplate slot, corresponding to different types of batteries, so that workers can quickly find and use them.

[0025] like Figure 4 As shown, when in use, the battery cell 12 is placed in the arc-shaped positioning groove, the tail end of the battery cell is against one side of the positioning block, the pole ear 13 of the battery cell is placed into the welding area of ​​the welding copper block, and finally the welding end to be welded with the pole ear is placed on the upper part of the pole ear. Under the action of the magnet, the two are tightly adsorbed together, and finally the two are welded together.

[0026] It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A welding tool for arc-shaped batteries, characterized by: It includes an arc-shaped support plate and a welding copper block. The arc-shaped support plate is provided with an arc-shaped positioning groove adapted to the battery core. A groove for fixing the welding copper block is provided on one side of the arc-shaped support plate. The welding copper block is fixed in the groove. The welding copper block is provided with a welding area, and the welding area is inlaid with a magnet.

2. The welding tool for arc-shaped batteries according to claim 1, characterized in that: There are two grooves, which respectively correspond to the two tabs of the battery cell, and the welding copper blocks are embedded in the corresponding grooves.

3. The welding tool for arc-shaped batteries according to claim 1, characterized in that: A welding area is respectively provided on both sides of the welding copper block.

4. The welding tool for arc-shaped batteries according to claim 3, characterized in that: A step is provided on the outer side of the welding area.

5. The welding tool for arc-shaped batteries according to claim 1, characterized in that: A sunken groove is provided in the middle of the arc-shaped supporting plate.

6. The welding tool for arc-shaped batteries according to claim 1, characterized in that: A positioning block is fixed on the other side of the arc-shaped supporting plate.

7. The welding tool for arc-shaped batteries according to claim 6, characterized in that: The positioning block is provided with a strip-shaped adjustment hole, and the adjustment bolt passes through the strip-shaped adjustment hole to fix the positioning block on the arc-shaped supporting plate.

8. The welding tool for arc-shaped batteries according to claim 1, characterized in that: The arc-shaped supporting plate is provided with a nameplate groove.

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