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Title:
MULTIBREAK EXCITATION FUSE HAVING GROUPED BREAKING
Document Type and Number:
WIPO Patent Application WO/2022/121230
Kind Code:
A1
Abstract:
A multibreak excitation fuse having grouped breaking, comprising a housing, a conductor, an excitation device and a breaking device. The breaking device is able to break the conductor under the driving of the excitation device. At least one cut-off structure capable of cutting off the conductor is arranged in a cavity on the other side of the conductor. Two groups of breaking weak points are arranged at intervals along the length direction of the conductor located in the housing. After the breaking device breaks the conductor off from the first break-off weak point group, at least one break-off conductor portion that can be disengaged from an original position is formed, to form a first group of breaks, and the second break-off weak point group is disposed on the break-off conductor portion. When the break-off conductor portion is displaced to the position of a cut-off structure, the cut-off structure breaks off the break-off conductor portion from the second break-off weak point group to form a second group of breaks. The first group of breaks at least comprises two breaks, and the second set of breaks at least comprises one break. The present excitation fuse structure is able to improve breaking ability and arc extinguishing ability.

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Inventors:
DUAN SHAOBO (CN)
SHI XIAOGUANG (CN)
GE XIBIN (CN)
WANG XIN (CN)
Application Number:
PCT/CN2021/092736
Publication Date:
June 16, 2022
Filing Date:
May 10, 2021
Export Citation:
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Assignee:
XI AN SINOFUSE ELECTRIC CO LTD (CN)
International Classes:
H01H39/00
Domestic Patent References:
WO2019224469A12019-11-28
Foreign References:
CN112447463A2021-03-05
CN213601829U2021-07-02
CN110114851A2019-08-09
CN207939189U2018-10-02
FR3051281A12017-11-17
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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