Title:
TWO-BREAK EXCITATION FUSE HAVING STAGED BREAKING
Document Type and Number:
WIPO Patent Application WO/2022/121205
Kind Code:
A1
Abstract:
A two-break excitation fuse having staged breaking, comprising a housing, an excitation device, a power device and conductive plates, an adjacent first cavity and a second cavity being formed in the housing, and the first cavity and the second cavity being partially communicated. The conductive plates pass through the housing, the first cavity and the second cavity. The excitation device and the power device are sequentially arranged in the first cavity. A sliding block is arranged in the second cavity, and one end of the sliding block extends through the region of communication with the first cavity into the first cavity. After the power device is driven by the excitation device to disconnect the conductive plate located in the first cavity, the sliding block can be pressured to extend into one end of the first cavity, driving the driving sliding block to disconnect the conductive plate located in the second cavity. The present excitation fuse features a broad breaking current range, high arc extinguishing ability, and good insulating performance after breaking.
Inventors:
DUAN SHAOBO (CN)
SHI XIAOGUANG (CN)
GE XIBIN (CN)
WANG XIN (CN)
SHI XIAOGUANG (CN)
GE XIBIN (CN)
WANG XIN (CN)
Application Number:
PCT/CN2021/087903
Publication Date:
June 16, 2022
Filing Date:
April 16, 2021
Export Citation:
Assignee:
XI AN SINOFUSE ELECTRIC CO LTD (CN)
International Classes:
H01H85/05; H01H71/12; H01H85/00; H01H85/055; H01H85/175; H01H85/38
Foreign References:
| CN110582830A | 2019-12-17 | |||
| CN112447464A | 2021-03-05 | |||
| CN213601830U | 2021-07-02 | |||
| CN208738069U | 2019-04-12 | |||
| CN208938890U | 2019-06-04 | |||
| EP0590662A1 | 1994-04-06 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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