公开(公告)号：US20240136131A1

公开(公告)日：2024-04-25

申请号：US18314345

申请日：2023-05-08

Applicant: Sichuan University

Inventor： Xiaolong HUANG ,  Tao SUN ,  Yiwei JI ,  Shangyu YANG ,  Zhiyun WU ,  Shuangwei ZHAO ,  Shenli JIA ,  Lihua ZHAO ,  Wenjun NING ,  Zhong WANG ,  Junwen REN

IPC: H01H33/664 ,  H05K7/20

CPC classification number: H01H33/664 ,  H05K7/20218

Abstract: The present disclosure relates to a liquid-cooling radiating pipe and a vacuum interrupter with a built-in liquid-cooling radiating pipe, belonging to the field of vacuum circuit breakers. Based on an original structure of an vacuum interrupter, a liquid-cooling radiating pipe of a Tesla valve structure is arranged in a conductive rod of the vacuum interrupter with the built-in liquid-cooling radiating pipe, and liquid metal is used as a circulating coolant in the liquid-cooling radiating pipe, and by using the self-circulating flow of the liquid metal in the pipeline, the capacity of the conductive rod to dissipate heat to the outside is significantly increased, and the problem of excessive internal temperature rise of a vacuum circuit breaker is effectively solved.

公开(公告)号：US11955300B2

公开(公告)日：2024-04-09

申请号：US17626934

申请日：2019-07-31

Applicant: Mitsubishi Electric Corporation

Inventor： Motohiro Sato ,  Kazuki Sugino ,  Yuji Yoshitomo

IPC: H01H33/664 ,  H01H33/666

CPC classification number: H01H33/664 ,  H01H33/6662

Abstract: A vacuum circuit breaker serving as a switch includes a pair of electrodes that serve as a stationary electrode and a movable electrode, a handler including a movable shaft and a housing that operate as a first mover in withdrawing the movable electrode from the stationary electrode and closing the movable electrode toward the stationary electrode, a movable shaft that is connected as a second mover to the movable electrode, a coil spring that is connected as an elastic between the first mover and the second mover to press the movable electrode against the stationary electrode, and a shock absorber that attenuates as an attenuator contraction of the elastic when the movable electrode is withdrawn from the stationary electrode.

公开(公告)号：US11942291B2

公开(公告)日：2024-03-26

申请号：US17602151

申请日：2020-03-09

Applicant: LS ELECTRIC CO., LTD.

Inventor： Yong-Jin Choi

IPC: H01H33/662 ,  H01H33/664 ,  H01H33/666

CPC classification number: H01H33/664 ,  H01H33/662 ,  H01H33/6664

Abstract: The present disclosure relates to a motion sensing device for a vacuum circuit breaker and a vacuum circuit breaker comprising same. In the present disclosure, the motion sensing device for a vacuum circuit breaker is provided with a push rod assembly coupled to a movable electrode of a vacuum interrupter to elevate or lower the movable electrode, wherein the motion sensing device comprises: a sensor module spaced apart from the push rod assembly and arranged to face a side of a rod housing; and a sensing unit installed on a side of the push rod assembly and arranged to face the sensor module that senses the movement of the sensing unit.

公开(公告)号：US20240047163A1

公开(公告)日：2024-02-08

申请号：US18286308

申请日：2022-04-25

Applicant: LS ELECTRIC CO., LTD.

Inventor： Yong Ik PARK

IPC: H01H73/18 ,  H01H33/664

CPC classification number: H01H73/18 ,  H01H33/664 ,  H01H71/08

Abstract: Disclosed are a circuit breaking unit and an air circuit breaker including the same. The present disclosure provides a circuit breaking unit, including a fixed contact; a movable contact that is in contact with or spaced apart from the fixed contact; a fixed contact terminal having the fixed contact disposed at a lower end thereof and extending upward; a movable contact terminal including the movable contact and configured such that the movable contact is formed to move in a direction toward the fixed contact or in a direction away from the fixed contact; a low runner disposed extending upward from the fixed contact, one end thereof coupled to the fixed contact terminal, and the other end thereof spaced apart from the fixed contact terminal; and a protruding contact disposed extending upward from the movable contact, energized when in contact with the low runner, and spaced apart from the low runner when the movable contact is tripped.

公开(公告)号：US20230368995A1

公开(公告)日：2023-11-16

申请号：US18312727

申请日：2023-05-05

Applicant: ABB Schweiz AG

Inventor： Pierluigi Invernizzi ,  Pierino Bertolotto

IPC: H01H33/666 ,  H01H33/12 ,  H01H33/664

CPC classification number: H01H33/6661 ,  H01H33/121 ,  H01H33/664 ,  H01H33/6664

Abstract: A switching apparatus including one or more electric poles. For each electric pole, the switching apparatus includes a first pole terminal, a second pole terminal, a ground terminal, and a plurality of fixed contacts spaced apart one from another. For each electric pole, the switching apparatus further includes a movable contact and a vacuum interrupter. The vacuum interrupter includes a fixed arc contact and a movable arc contact reversibly movable along a corresponding translation axis between a coupled position with the fixed arc contact and an uncoupled position from the fixed arc contact. For each electric pole, the switching apparatus further includes a motion transmission mechanism operatively coupled to a contact shaft coupled to the movable arc contact. The motion transmission mechanism is actuatable by the movable contact to cause a movement of said movable arc contact along said translation axis, when said movable contact moves about said rotation axis.

公开(公告)号：US20230368994A1

公开(公告)日：2023-11-16

申请号：US18311945

申请日：2023-05-04

Applicant: ABB Schweiz AG

Inventor： Jacopo Bruni ,  Giorgio Forlani ,  Gianluca Cortinovis ,  Emanuele Morelli

IPC: H01H33/666 ,  H01H33/664

CPC classification number: H01H33/6661 ,  H01H33/664 ,  H01H33/6664

Abstract: A method for assembling a switching apparatus for medium voltage electric systems is provided. The method includes, for each electric pole of the switching apparatus, providing a mounting assembly. The mounting assembly includes a support structure, a vacuum interrupter, a motion transmission mechanism, and an auxiliary contact. The method further includes providing a first semi-finished structure of the switching apparatus, where the first semi-finished structure includes, for each electric pole of the switching apparatus, a first pole terminal and a first fixed contact electrically connected to the first pole terminal. The method further includes, for each electric pole of the switching apparatus, installing the mounting assembly on the first semi-finished structure.

公开(公告)号：US11804346B2

公开(公告)日：2023-10-31

申请号：US17913491

申请日：2021-03-18

Applicant: MEIDENSHA CORPORATION

Inventor： Hideaki Fukuda

IPC: H01H33/662 ,  H01H33/66 ,  H01H33/664 ,  H01H33/666

CPC classification number: H01H33/66238 ,  H01H33/664 ,  H01H33/666 ,  H01H33/6606

Abstract: An arc shield surrounding an outer peripheral side of a fixed electrode and a movable electrode is provided, in addition to a fixed-side insulating unit in which a fixed-side insulator is provided to be connected coaxially with the arc shield on the fixed side in the axial direction of the arc shield, and a movable-side insulating unit in which movable-side insulators are provided to be connected coaxially with the arc shield on the movable side in the axial direction of the arc shield. The movable-side insulating unit has an insulator group in which movable-side insulators are provided to be connected in the axial direction, an insulator-group-side sub shield surrounding the outer peripheral side of a movable-side energizing shaft, and an insulator-group-side sub shield support part which is on the outer peripheral surface of the insulator-group-side sub shield and interposed between two adjacent movable-side insulators of the insulator group.

公开(公告)号：US11798764B1

公开(公告)日：2023-10-24

申请号：US18094235

申请日：2023-01-06

Applicant: Dean Carnell Sanders ,  Elliott James Gist

Inventor： Dean Carnell Sanders ,  Elliott James Gist

IPC: H01H33/666 ,  H01H33/664 ,  H01H33/662

CPC classification number: H01H33/666 ,  H01H33/662 ,  H01H33/664

Abstract: An underarm gang operated vacuum break switch (underarm switch) has an electrically live portion under a mounting arm, which provides advantages over the standard vacuum break switch, which have the electrically live portion above the mounting arm. Because the non-electrified mounting arm is above the electrified portion, the underarm switch is safer for perching birds and other wildlife. The nature of the underarm switch also provides other benefits including a disconnect blade that when opened creates a visual gap to ensure electrical discontinuity along with a safety locking arm tied to deactivating the underarm switch. Adding to the safety measures is a visual indicator that shows an electrician when the switch is live and safe to open the disconnect blade. Other safety measures include a shock absorber assembly and inertia slowing mass protecting electrical contacts within the vacuum break switch from failing.

公开(公告)号：US11776779B2

公开(公告)日：2023-10-03

申请号：US17574862

申请日：2022-01-13

Applicant: ABB Schweiz AG

Inventor： Emanuele Morelli ,  Dietmar Gentsch ,  Jacopo Bruni

IPC: H01H33/664 ,  H01H33/662 ,  H01H33/666

CPC classification number: H01H33/664 ,  H01H33/662 ,  H01H33/666

Abstract: A switching apparatus is provided herein. The switching apparatus includes: (i) a first pole terminal, a second pole terminal and a ground terminal, (ii) a first contact arrangement including a first fixed contact member and a first movable contact member, (iii) a second contact arrangement including a second fixed contact member and a second movable contact member, (iv) a vacuum chamber wherein the second fixed contact and the second movable contact are enclosed and can be coupled or decoupled, and (v) an electrically conductive coupling lever pivoted on the second movable contact member and reversibly movable about a second rotation axis.

公开(公告)号：US20190198271A1

公开(公告)日：2019-06-27

申请号：US16099708

申请日：2017-05-08

Applicant: Camlin Technologies Limited

Inventor： Mark Muir

IPC: H01H33/28 ,  H01H33/666 ,  H02N2/04 ,  H01H33/664

CPC classification number: H01H33/28 ,  H01H1/0203 ,  H01H1/502 ,  H01H3/22 ,  H01H33/664 ,  H01H33/6642 ,  H01H33/666 ,  H01H57/00 ,  H01H2033/6648 ,  H01H2221/072 ,  H02N2/043

Abstract: A vacuum circuit breaker comprises a vacuum interrupter operable between a closed state and an open state, and an actuator. The actuator comprises a piezoelectric driving element that is expandable and contractable along an expansion axis in response to an electrical input signal. The actuator further comprises a mechanical amplifying structure extendable along an actuation axis and being mechanically coupled to the piezoelectric driver such that expansion or contraction of said piezoelectric driving element causes the amplifying structure to extend or retract along the actuation axis. The mechanical amplifying structure is coupled to the vacuum interrupter for operating the vacuum interrupter between said closed and open states.