Title:
接地開閉器
Document Type and Number:
Japanese Patent JP7225890
Kind Code:
B2
Abstract:
To enable an increase in size of a device to be avoided while repulsion between a movable element and a stator is suppressed when a short-circuit current is applied to a contact portion between the movable element and the stator.SOLUTION: A grounding switch (10) includes a movable element (12) and a stator (14) which are provided in such a manner that they can contact with and separate from each other, and which energize in a contact state, and cut off energization in a separated state. The movable element includes a pair of blade members (12a) forming a contacting portion while sandwiching the stator in a contact state, and a magnetic member (30) at least a part of which is provided in an inner space (S) sandwiched by the pair of blade members in the sandwiching direction of the pair of blade members. The magnetic member concentrates the magnetic flux generated when energized on the magnetic member itself, thereby applying electromagnetic attraction force to the pair of blade members in a direction in which the blade members approach each other.SELECTED DRAWING: Figure 3
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Inventors:
Takeshi Asanuma
Takaaki Kitamura
Takaaki Kitamura
Application Number:
JP2019025525A
Publication Date:
February 21, 2023
Filing Date:
February 15, 2019
Export Citation:
Assignee:
Fuji Electric Co., Ltd.
International Classes:
H01H31/02; H01H1/54; H01H31/28
Domestic Patent References:
| JP53023555U | ||||
| JP2013251964A | ||||
| JP2002051414A | ||||
| JP2000125426A | ||||
| JP57061907U |
Attorney, Agent or Firm:
Hiroyoshi Aoki
Masayuki Amada
Yoshimasa Okada
Masaaki Kitagawa
Masayuki Amada
Yoshimasa Okada
Masaaki Kitagawa