Welding clamp of lithium ion battery breaker

Abstract

The invention discloses a welding clamp of a lithium ion battery breaker which is simple in structure and reasonable in design. The welding clamp of the lithium ion battery breaker comprises a base and a cover body, wherein the cover body is arranged on the base and movably connected with the base; the base comprises a bottom plate and a support seat which is arranged below the bottom plate; plural U-shaped containing grooves are arranged on the bottom plate; welding casting dies are arranged on the cover body; welding parts are arranged on the welding casting dies; and during the welding, the welding parts are arranged in the containing grooves so that the welding is convenient. The welding clamp of the lithium ion battery breaker is reasonable in structural design, easy for preparation, convenient and rapid in use, accurate for positioning and capable of welding the breaker by combining an automatic spot welding device without manual welding, so that the welding efficiency is greatly improved, the welding consistency is ensured, the product yield is improved and the reliability and safety of the breaker are ensured.

Description

technical field [0001] The invention relates to the technical field of lithium-ion battery manufacturing equipment, in particular to a welding fixture for a lithium-ion battery circuit breaker. Background technique [0002] Lithium-ion battery is a chemical energy storage device with high energy density, which has the advantages of high energy density, long service life and high safety and reliability. With the continuous development of electronic technology, portable electronic devices such as MP3, MP4, DVD, mobile phones and notebook computers, and electric vehicles mostly use lithium-ion batteries as power sources, which makes lithium-ion batteries develop better and use more and more. wider. [0003] Although lithium-ion batteries are used by people because of their advantages such as high energy and long life, safety problems may occur in abnormal use. Therefore, the safety performance of lithium-ion batteries has attracted more and more attention. In order to improv...

AI Technical Summary

Problems solved by technology

[0005] When a plate-shaped welding jig is used to weld a circuit breaker for a lithium-ion battery, the plate-shaped jig cannot accurately position the welding material

In the butt welding process of artificial resistance spot welding, the upper and lower welding pins need to be butt-jointed, and the upper and lower welding pins will pass a high current. Therefore, after repeated welding, the heads of the upper and lower welding pins will "accumulate" welding slag, and the existence of welding slag will cause Poor welding between the nickel sheet of the circuit breaker and the aluminum-nickel composite strip affects the welding quality

In addition, during welding, it is necessary to replace the accessories of the welding machine from time to time, and it is manually operated. There are situations such as virtual welding and missing welding caused by manual operation errors, resulting in a low good rate of the circuit breaker and poor welding consistency. less than guaranteed

[0006] The positioning of welding materials by traditional plate fixtures is inaccurate, and manual welding cannot guarantee the consistency of product welding in mass production, and it is difficult to ensure the reliability and safety of circuit breakers, and the welding efficiency is low, which is not conducive to production efficiency The improvement of labor intensity and production cost

In view of the fact that the traditional plate-shaped fixture is difficult to guarantee the quality and performance of lithium-ion battery circuit breakers, it is necessary to study a welding fixture that can be automatically welded and mass-produced with good performance

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