公开(公告)号：US20210066007A1

公开(公告)日：2021-03-04

申请号：US17040398

申请日：2019-03-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshihisa FUKUDA ,  Shinya KIMOTO ,  Kenji KANEMATSU ,  Kazuhisa KINOSHITA ,  Masato NAKAMURA

IPC: H01H33/78 ,  H01H33/02 ,  H01H33/70 ,  H01H33/56 ,  H01H33/28

Abstract: A circuit interrupter includes a fixed terminal, a movable contactor, a moving mechanism, a squib, and accommodation. The fixed terminal includes a fixed contact. The movable contactor includes a movable contact connected to the fixed contact. The moving mechanism is configured to move the movable contactor from a closed position where the movable contact is connected to the fixed contact to an open position where the movable contact is separated from the fixed contact. The squib is configured to generate gas by combustion. The accommodation is for accommodating the fixed contact and the movable contactor. In the circuit interrupter, the gas is introduced into the accommodation.

公开(公告)号：US20210057172A1

公开(公告)日：2021-02-25

申请号：US16982269

申请日：2019-03-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshihisa FUKUDA ,  Shinya KIMOTO ,  Kenji KANEMATSU ,  Kazuhisa KINOSHITA ,  Masato NAKAMURA

IPC: H01H1/54 ,  H01H9/44 ,  H01H33/18

Abstract: A circuit interrupter includes: a first fixed terminal including a first fixed contact; a movable contactor which is formed as a separate part from the first fixed terminal and includes a first movable contact; a holding unit configured to hold the movable contactor so that the first movable contact is connected to the first fixed contact; and a squib configured to generate gas by combustion. In the circuit interrupter, pressure of the gas generated by the squib causes movement of the movable contactor in a direction away from the first fixed terminal so that the first movable contact is separated from the first fixed contact.

公开(公告)号：US20240420905A1

公开(公告)日：2024-12-19

申请号：US18720985

申请日：2023-08-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shun ITO ,  Shinya KIMOTO ,  Katsuya URUMA ,  Masato NAKAMURA

IPC: H01H39/00

Abstract: This breaker device includes: a casing; an igniter disposed in the casing; a conductor including a separating portion disposed below the igniter; and a pusher located between the separating portion and the igniter and configured to move together with the separating portion from a first position to a second position located below the first position. The casing includes: a first casing made of a metal, including a first fixing portion, and configured to house the igniter and the pusher located at the first position; and a second casing made of a metal, including a second fixing portion, and configured to house the pusher that has moved to the second position and the separating portion that has moved downward together with the pusher. The first fixing portion and the second fixing portion overlap each other, come into contact with each other, and are fixed to each other.

公开(公告)号：US20210350991A1

公开(公告)日：2021-11-11

申请号：US17281056

申请日：2019-09-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshihisa FUKUDA ,  Kazuhisa KINOSHITA ,  Shinya KIMOTO ,  Kenji KANEMATSU ,  Masato NAKAMURA

IPC: H01H39/00 ,  H01H9/10

Abstract: An interrupter includes a gas producer, an actuator pin, and an electrical conductor. The electrical conductor includes a first terminal portion, a first separable portion, a second terminal portion, and a second separable portion. The second separable portion is electrically connected to the first separable portion in parallel. A first timing when the first separable portion starts to be cut off from the first terminal portion is earlier than a second timing when the second separable portion starts to be cut off from the second terminal portion.

公开(公告)号：US20240371589A1

公开(公告)日：2024-11-07

申请号：US18701878

申请日：2023-07-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masato NAKAMURA ,  Shun ITO ,  Shinya KIMOTO

IPC: H01H71/10 ,  H01H71/02

Abstract: This breaker device includes: a casing; an igniter configured to generate gas; a pusher located inside the casing and positioned below the igniter; a conductor including a separating portion positioned below the pusher; and an elastic member disposed to be positioned between the casing and the pusher to press the outer side surface of the pusher. In the state where the pusher is stationary after the pusher moves the separating portion downward under the pressure of the gas generated by the igniter, the pusher is located at a level below the elastic member, and the inner surface of the elastic member overlaps the pusher as viewed from above.