Method and mould for producing first outer-packing vacuum arc extinguishing chamber of phase post of circuit breaker element

Abstract

The invention discloses a method and a mould for producing a first outer-packing vacuum arc extinguishing chamber of a phase post of a circuit breaker element. The method comprises a mould closing step, an injection step, a demoulding step and a second outer-packing step, wherein the mould closing step is used for arranging a vacuum arc extinguishing chamber into a mould and closing the mould, theexposed electric conducting part of a contact of the movable end of the vacuum arc extinguishing chamber of the phase post of a circuit breaker element is covered by a first mould head, and the exposed electric conducting part of the contact of the static end of the vacuum arc extinguishing chamber is covered by a second mould head to prevent the electric conducting part from being wrapped by silicon rubber in the injecting process of the next step, and the conductivity of the electric conducting part is guaranteed; and besides, the mould head enables the vacuum arc extinguishing chamber to be positioned in the mould to guarantee the size after the silicon rubber is wrapped; the injection step is used for injecting liquid silicon rubber into the mould so as to be formed by reaction; the demoulding step is used for taking out the first outer-packing vacuum arc extinguishing chamber by demoulding after the silicon rubber is formed by reaction; and the second outer-packing step is used for secondly packing the resin outside the first outer-packing vacuum arc extinguishing chamber to produce the product of the phase post of the breaker element.

Description

technical field [0001] The invention relates to a manufacturing method of a primary outsourcing vacuum interrupter for a circuit breaker element phase column, in particular to a manufacturing method for a high voltage circuit breaker element phase column. Background technique [0002] The main part of the vacuum circuit breaker is three phase columns, and each phase column contains a vacuum interrupter and external insulation. organ heart. The vacuum interrupter utilizes vacuum as an interrupter medium. The vacuum interrupter consists of a ceramic or a glass hollow cylinder, and the two ends of the hollow cylinder are provided with stainless steel or oxygen-free copper end caps, and the end caps are welded with the ceramic or glass shell to form a vacuum chamber. The vacuum chamber is provided with a moving end contact and a static end contact, and the moving end contact is connected with an end cover at one end through a bellows and can perform opening and closing actions...

AI Technical Summary

Problems solved by technology

[0011] The present invention provides a manufacturing method of a circuit breaker element phase column and a mold for a primary outsourcing vacuum interrupter, which overcomes the problem of the circuit breaker element phase column in the background technology. Poor external insulation performance, lack of air gap and shrinkage stress

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