A production process for the insulation of exposed wire ends of lithium battery wires

Abstract

The invention relates to the field of wire head insulation treatment technology, and discloses a lithium battery lead wire exposed wire end insulation production process, comprising the following steps: performing a heating and melting operation on a low-viscosity hot-melt adhesive to obtain a low-viscosity hot-melt adhesive liquid; Dip into the low-viscosity hot-melt adhesive liquid, and carry out encapsulation operation; pull out the exposed wire end from the low-viscosity hot-melt adhesive liquid, and make the exposed thread end hang on the low-viscosity hot-melt adhesive Above the liquid level of the glue, seal the broken wire to form a seal sleeve on the exposed thread end. The invention uses low-viscosity hot-melt adhesive to form a sealing rubber sleeve on the exposed wire end, the insulation operation is simple and convenient, it is not easy to produce residual glue, and the exposed wire end has good sealing and covering performance, which solves the short circuit problem of the exposed wire end of the wire and solves the problem of the exposed wire end Oxidation due to moisture, so that the tin-eating effect of exposed wire ends is good. The cost of low-viscosity hot melt adhesive is far lower than the cost of insulating tape and sleeve, which can increase the production efficiency by more than 300%.

Description

technical field [0001] The invention relates to the field of wire end insulation treatment technology, in particular to a production process for the insulation of exposed wire ends of lithium battery wires. Background technique [0002] For the exposed wire end of the wire, in order to prevent it from being oxidized by the air, it needs to be insulated. Generally, an insulating tape or a sleeve is attached to cover or cover the exposed wire end to ensure that it can achieve the insulation function. For example, in the lithium battery industry, after the lithium battery and the protection board are assembled, the exposed wire ends of the wires on the protection board need to ensure their insulation function, so as to avoid the problem of direct electrical connection between the exposed wire ends and foreign objects or adjacent wire ends. Avoid short circuit problems. For example, in the wire industry, during the process of product processing until the product is packed and s...

AI Technical Summary

Problems solved by technology

[0003] However, when insulating tape is used to attach and cover the exposed wire ends, there will be exposed glue around the insulating tape, which will cause multiple wires to stick to each other, which will easily cause wire confusion, which will cause wire quality problems and increase production man-hours; When the insulating tape is removed during processing, there will be residual glue left on the exposed wire ends, which will affect the subsequent welding process and lead to poor tin eating

[0004] Furthermore, in the prior art, the tightness of the sleeve to the exposed wire ends of the wires cannot reach an appropriate level at all. If the sleeves are loose to the exposed wire ends of the wires, the sleeves will easily fall off from the exposed wire ends, resulting in failure of its insulation function. ; If the sleeve is tight to the exposed wire end of the wire, it is difficult for the exposed wire end to penetrate into the sleeve, the processing time is too long, and the efficiency is too low; Into the gap between the exposed thread and the exposed thread, so that the exposed thread is oxidized by moisture, resulting in quality problems such as poor tin eating of the exposed thread

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