A key block for a decoupler

By designing key components of the disconnector, adopting a concave discharge plate and a ring resistor structure, and combining the explosive force of the thermal explosion tube, the problem of malfunction of the thermal explosion disconnector under the action of lightning current was solved, achieving stable current conduction and fault isolation, and improving the operational reliability of the power system.

CN224287890UActive Publication Date: 2026-05-26GUANGZHOU ZHONGGUANG ELECTRONIC TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU ZHONGGUANG ELECTRONIC TECH CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-26

Smart Images

  • Figure CN224287890U_ABST
    Figure CN224287890U_ABST
Patent Text Reader

Abstract

This utility model relates to the technical field of depletion device modules, and discloses a key module of a depletion device, including a shell, bolts on the inner side of the shell, and two discharge plates on the top of the bolts. The two discharge plates are respectively designated as a first discharge plate and a second discharge plate. The first and second discharge plates are basically concave in shape, and the lower end of the concave body is provided with a flat surface with a flat area of ​​not less than 40 square millimeters. In this utility model, by adopting a concave structure for the first and second discharge plates and providing a flat surface at the lower end, with the flat surface being relatively parallel and having a flat area of ​​not less than 40 square millimeters, the unique shape is used to change the electric field distribution path. During normal energization, the current is conducted through the discharge plates. The flat surface expands the current-carrying area, while the concave structure allows the electric field lines to spread more evenly throughout the entire area. The uniform electric field distribution significantly reduces the problem of local overheating caused by electric field concentration.
Need to check novelty before this filing date? Find Prior Art