ELECTRICAL CIRCUIT BREAKER DEVICE

WIPO Patent Application WO/2023/157361

A1

This electrical circuit breaker device is provided with: an ignitor provided to a housing; a projectile which is arranged in an accommodation space that is formed inside the housing and extends in one direction, and which is fired along the accommodation space due to energy received from the ignitor; a conductor piece that is provided to the housing and forms part of an electrical circuit, the conductor piece having an excised part that is a portion of the conductor piece excised by the projectile moving due to the energy received from the ignitor, and the excised part being arranged so as to cross the accommodation space; and a shock-absorbing member that is located on the opposite side of the accommodation space from the projectile, across from the excised part prior to actuation of the ignitor, that is arranged in an arc-extinguishing region for receiving the excised part which has been excised by the projectile, that is formed of a resin material which is modified by heat associated with actuation of the ignitor, that is flexible, and that absorbs the shock of collision by the excised part that has been excised. Due to this configuration, provided is an electrical circuit breaker device for preventing an insulation resistance value from decreasing after actuation.

FUJITOU KATSUHISA (JP)
KOUSHIMA RYOUTA (JP)

PCT/JP2022/035599

August 24, 2023

September 26, 2022

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DAICEL CORP (JP)

H01H39/00

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IP FIRM SHUWA (JP)

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