Dynamic-contact braided-line cold press of circuit breaker

Abstract

A breaker moving contactor litzen wire cool extrusion technics includes the breaker moving contactor litzen wire parts pretreatment and cool extrusion parts, the pretreatment includes: polishes the copper oxide on the contactor; processes the resting cooperating part of the contactor ending-part; the cool extrusion includes: designs the special clamp for the litzen wire; uses the special clamp to press the contactor ending part cooperating part into the mother row slot by the pressure 25 ~ 40 tons, from left to right, presses into the moulding litzen wire contactor one by one, uses the special clamp to press from top to bottom, the contactor cooperating part and the mother row extrude together and non-gap; achieves the non-gap connection of the breaker moving contactor and the litzen wire.

Description

Technical field: [0001] The invention relates to a cold extrusion process for a braided wire of a moving contact of a circuit breaker, and belongs to the technical field of electric appliance manufacturing. Background technique: [0002] The circuit breaker moving contact braid is a very important conductive part that connects the contact and the contact busbar in the circuit breaker. At present, the connection between the busbar and the braided wire of the circuit breaker moving contact system is usually welded at home and abroad. Due to the large welding current and long power-on time of this welding process, it is easy to cause the wire at the root of the braided wire to harden, resulting in increased resistance when the circuit breaker is opened and closed, making it difficult to open and close the circuit breaker, thus losing the power of the circuit breaker. In addition, due to the large current and long time required in the welding process, this welding process has a...

AI Technical Summary

Problems solved by technology

Due to the large welding current and long power-on time of this welding process, it is easy to cause the wire at the root of the braided wire to harden, resulting in increased resistance when the circuit breaker is opened and closed, making it difficult to open and close the circuit breaker, thus losing the power of the circuit breaker. In addition, due to the large current and long time required in the welding process, this welding process has always been a big power-consuming tiger in the production process of circuit breakers, and it is also the reason why the production cost of circuit breakers remains high. one of the important reasons

In order to solve this problem, some foreign industrialized countries have adopted laser welding circuit breaker moving contact braided wire technology, but its energy consumption problem has not been solved, and a laser welding equipment needs more than 1 million US dollars, and its production The cost is so high that general production enterprises cannot use it at all

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