Solid-sealed polar pole structure of load switch-fuse combined electric appliance

Abstract

The invention discloses a solid-sealed polar pole structure of a load switch-fuse combined electric appliance. The solid-sealed polar pole comprises a fuse and a solid-sealed polar pole, the outer side of the fuse is provided with a fuse cavity which is integrally cast and molded with the solid-sealed polar pole; the left side and the right side of the fuse are respectively provided with a fusiontube clamp and a conductive clamp. A guide sleeve is arranged in the outer side of the fusion tube clamp; the outer side of the fusion tube clamp is provided with an upper contact arm; the upper contact arm is provided with a plum blossom contact; the outer side of the upper contact arm is provided with a positioning piece; a conductive piece is arranged under the fuse, the conductive piece is connected with a conductive clamp in a soft connection mode a, a vacuum arc-extinguishing chamber is arranged under the conductive piece, the vacuum arc-extinguishing chamber is connected to a lower contact arm in a soft connection mode b, a plum blossom contact is arranged on one side of the lower contact arm, and an insulating pull rod is arranged at the lower end of the solid-sealed polar pole. The solid-sealed polar pole structure is compact in structure, integrally sealed, small in size, wide in application range, high in stability and high in conductive reliability, and the vacuum arc-extinguishing chamber and the conductive part are fixedly connected and then cast in the pole.

Description

technical field [0001] The invention relates to a solid-sealed pole structure of a load switch-fuse combined electric appliance, which belongs to the technical field of fuses. Background technique [0002] The so-called solid-sealed pole refers to the use of advanced APG casting technology, through the special embedding technology to directly pour the vacuum interrupter and other main circuit components into the epoxy resin to form an integral conductive pole. The market only has partial solid sealing, and the volume is large, the scope of application is small, and the whole is not easy to install and disassemble. Contents of the invention [0003] (1) Technical problems to be solved [0004] In order to solve the above problems, the present invention proposes a compact structure, integrally sealed, small volume, wide application range, the vacuum interrupter is fixedly connected with the conductive parts and then cast in the pole, with good stability and high conductive ...

AI Technical Summary

Problems solved by technology

[0002] The so-called solid-sealed pole refers to the use of advanced APG casting technology, through the special embedding technology to directly pour the vacuum interrupter and other main circuit components into the epoxy resin to form an integral conductive pole. The market only has partial solid sealing, and the volume is large, the scope of application is small, and the whole is not easy to install and disassemble

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