Title:
CIRCUIT BREAKER, DISTRIBUTION PANEL, AND COIL UNIT
Document Type and Number:
WIPO Patent Application WO/2022/158154
Kind Code:
A1
Abstract:
This circuit breaker (10) opens a contact part (11) composed of a fixed contact (48a) and a movable contact when a short-circuit current of a load and a power supply is detected. The circuit breaker (10) comprises: an arc extinguishing grid (82) which interrupts an arc that occurs when the contact part (11) is opened; and a coil unit (40). The coil unit (40) comprises: a coil (41) for detecting a short-circuit current; a first terminal (47) to which one end section of the coil (41) is connected; and a second terminal (48) to which the other end of the coil (41) is connected and which includes a fixed contact (48a). The first terminal (47) comprises: a terminal part (47a) connected to an external circuit; and an arc traveling part (47b) disposed facing the arc extinguishing grid (82).
Inventors:
NAKAMICHI YOSHIYA
MAO XIANG
MAO XIANG
Application Number:
PCT/JP2021/045110
Publication Date:
July 28, 2022
Filing Date:
December 08, 2021
Export Citation:
Assignee:
PANASONIC HOLDINGS CORP (JP)
International Classes:
H01H9/36; H01H73/18; H01H73/36; H02B1/40
Domestic Patent References:
| WO2014167605A1 | 2014-10-16 |
Foreign References:
| JPS52152266U | 1977-11-18 | |||
| US4654614A | 1987-03-31 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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