Heat dissipation type embedded pole

Abstract

The invention provides a heat dissipation type embedded pole. A plurality of upper umbrella skirts and lower umbrella skirts are respectively arranged on the outer circumferential walls of the upper end and the lower end of an epoxy resin shell, and a dustproof umbrella skirt is arranged on the outer circumferential wall of the epoxy resin shell below the upper umbrella skirts; the middle part ofthe epoxy resin shell is provided with a heat dissipation device and the upper edge of the heat dissipation device is exposed and located at a joint of the upper end of an insulation pull rod and a soft connection; and a heat dissipation distance A is reserved between the heat dissipation device and the dustproof umbrella skirt. According to the heat dissipation type embedded pole, the heat dissipation device is embedded in the epoxy resin shell at the joint between the upper end of the insulation pull rod and the soft connection, a problem that heat generated at the joint of the upper end ofthe insulation pull rod and the soft connection cannot be discharged in time is effectively solved, the phenomenon that the parts at the joint are rusted after oxidation due to excessively high temperatures is avoided, the whole service life of products is guaranteed, the safety performance is greatly improved, a creep distance of the products to the ground is increased, and the technical requirements for power frequency voltage withstand are completely met.

Description

technical field [0001] The invention belongs to the technical field of vacuum switches, and in particular relates to a heat dissipation type solid-sealed pole. Background technique [0002] At present, the current in the vacuum circuit breaker passes through the upper outgoing line and the lower outgoing line of the solid-sealed pole, and flows through the dynamic and static contacts of the vacuum interrupter. When the operating mechanism controls the separation of the moving contact and the static contact through the insulating pull rod, A vacuum arc is generated between the static contact and the moving contact. The high vacuum state inside the vacuum interrupter is the insulating medium and arc extinguishing medium when the solid-sealed pole is live, and it will be extinguished when the current crosses zero. Due to the structure of the electrode system , the arc current generates a strong magnetic field in the arc area, and through the control of the magnetic field force ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a heat-dissipating solid-sealed pole. By embedding a heat dissipation device on the epoxy resin shell at the joint between the upper end of the insulating pull rod and the soft connection, it effectively solves the problem of the joint between the upper end of the insulating pull rod and the soft connection. The problem that the heat cannot be discharged in time avoids the rusting of the joint parts due to oxidation due to high temperature, ensures the overall service life of the product, greatly improves the safety performance, and increases the ground creep of the product, which fully meets the requirements Technical requirements for power frequency and high voltage resistance

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