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1. 发明申请

US20220351925A1 GAS CIRCUIT BREAKER 有权
公开(公告)号：US20220351925A1
公开(公告)日：2022-11-03
申请号：US17778083
申请日：2020-01-17
申请人： Mitsubishi Electric Corporation
发明人： Koma SATO , Yuji YOSHITOMO
IPC分类号： H01H33/16 , H01H33/91
摘要： A gas circuit breaker including: a cylindrical tank; a stator fixed inside the tank; and a mover disposed so as to face the stator. The mover is movable between a closing position and a cutoff position, the mover is in contact with the stator when located in the closing position, and the mover is out of contact with the stator when located in the cutoff position. The stator includes: a stator-side main contact fixed inside the tank; a stator-side resistance contact having a ring shape surrounding the stator-side main contact; and a spring and a dashpot supporting the stator-side resistance contact from a direction opposite to a direction in which the stator-side resistance contact faces the mover. The mover includes: a mover-side main contact disposed so as to face the stator-side main contact; and a mover-side resistance contact disposed in such a way as to face the stator-side resistance contact.

2. 发明申请

US20220013313A1 VACUUM CIRCUIT BREAKER 有权
公开(公告)号：US20220013313A1
公开(公告)日：2022-01-13
申请号：US17295554
申请日：2019-01-31
申请人： Mitsubishi Electric Corporation
发明人： Yuji YOSHITOMO , Kazuki SUGINO
IPC分类号： H01H33/666 , H01H33/53 , H02B13/035 , H02B13/045
摘要： A vacuum circuit breaker includes: a vacuum valve that is insulated and supported inside a grounded tank; a movable-side frame connecting a lower end of a movable-side external conductor to a movable conductor; a stationary-side frame connecting a lower end of a stationary-side external conductor to a stationary conductor; a movable-side insulating support tube that supports the movable-side frame and insulates thereof from the grounded tank; a stationary-side insulating support tube that supports the stationary-side frame and insulates thereof from the grounded tank; a movable-side flange covering a movable-side end of the grounded tank; and a rubber piece on an inner peripheral surface of the movable-side flange. The movable-side insulating support tube is supported, at an end opposite from an end connected to the movable-side frame, by the movable-side flange via the rubber piece and is movable along an axis and a radius of an arc-extinguishing chamber.

3. 发明申请

US20180012716A1 GAS CIRCUIT BREAKER 审中-公开
公开(公告)号：US20180012716A1
公开(公告)日：2018-01-11
申请号：US15538117
申请日：2015-01-07
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Yasunori NAKAMURA , Yuji YOSHITOMO , Daisuke YOSHIDA
IPC分类号： H01H33/91 , H01H33/76 , H01H33/08
CPC分类号： H01H33/91 , H01H33/08 , H01H33/76 , H01H33/901 , H01H33/905 , H01H2033/908
摘要： A gas circuit breaker includes a rod-shaped fixed arc contact, a cylindrical movable arc contact to contact or be separated from the fixed arc contact, a heat puffer chamber storing an arc-extinguishing gas to be blown to an arc generated between the fixed arc contact and the movable arc contact, and an insulator received within a receiving hole formed in a distal end part of the fixed arc contact. An end surface of the insulator on a side of the movable arc contact faces the side of the movable arc contact via an opening end of the housing hole, the end surface on the side of the movable arc contact is disposed closer to the inside of the housing hole than the opening end is, and the insulator is made of an ablation material that is vaporized by heat of the arc.

4. 发明申请

US20170117072A1 INSULATING SUPPORT FOR ELECTRIC DEVICE 有权
公开(公告)号：US20170117072A1
公开(公告)日：2017-04-27
申请号：US15301571
申请日：2014-04-04
申请人： Mitsubishi Electric Corporation
发明人： Hirokazu OTANI , Koichi KANEDA , Yuji YOSHITOMO , Daisuke YOSHIDA
IPC分类号： H01B17/14 , H02B1/01
CPC分类号： H01B17/14 , H01B17/00 , H01B17/16 , H01B17/56 , H02B1/011
摘要： An insulating support includes a pillar-shaped portion made of resin, a metal insert buried in one end surface of the pillar-shaped portion in an axial direction, a metal insert buried in the other end surface of the pillar-shaped portion in the axial direction, and one protrusion made of the resin and provided in a ring shape and integrally with the pillar-shaped portion on an outer circumferential surface of the pillar-shaped portion on a side of the metal insert. The metal insert includes a first cylindrical base portion and a first distal end portion. The metal insert includes a second cylindrical base portion and a second distal end portion. A whole of the first distal end portion is disposed within an extended range of the protrusion in the axial direction.

5. 发明申请

US20220310336A1 VACUUM CIRCUIT BREAKER 有权
公开(公告)号：US20220310336A1
公开(公告)日：2022-09-29
申请号：US17594962
申请日：2019-06-07
申请人： Mitsubishi Electric Corporation
发明人： Yuji YOSHITOMO , Kazuki SUGINO
IPC分类号： H01H33/666
摘要： A vacuum circuit breaker includes: an insulating rod disposed within a grounded tank; a drive conductor connected to the insulating rod; a first bushing and a second bushing connected to the side of the grounded tank; vacuum valves including movable contacts; levers rotatably coupled at end portions on one side to the insulating rod or the drive conductor; movable conductors electrically connected at end portions on one side to the movable contacts; and links rotatably coupled at end portions on one side to the end portions on the other side of the movable conductors and rotatably coupled at end portions on the other side to the end portions on the other side of the levers.

6. 发明申请

US20220262584A1 SWITCH 有权
公开(公告)号：US20220262584A1
公开(公告)日：2022-08-18
申请号：US17626934
申请日：2019-07-31
申请人： Mitsubishi Electric Corporation
发明人： Motohiro SATO , Kazuki SUGINO , Yuji YOSHITOMO
IPC分类号： H01H33/664 , H01H33/666
摘要： 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.

7. 发明申请

US20160294167A1 GAS CIRCUIT BREAKER AND METHOD FOR ATTACHING BUSHING 有权
标题翻译：气体断路器和连接方式
公开(公告)号：US20160294167A1
公开(公告)日：2016-10-06
申请号：US15035180
申请日：2014-01-27
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Yuji YOSHITOMO , Daisuke YOSHIDA
IPC分类号： H02B13/035 , H01H33/64 , H01H69/00 , H01H33/56
CPC分类号： H02B13/0358 , H01H33/025 , H01H33/027 , H01H33/56 , H01H33/64 , H01H69/00
摘要： An adapter with an insertion guide for connection between a porcelain tube and a branch tube is provided at an upper end portion of the branch tube. The adapter with the insertion guide includes an insertion guide portion extending in an axial direction of the branch tube. After inserting a lower end of a central conductor into an insertion portion of an arc-extinguishing chamber, a flange of the porcelain tube is inserted into the adapter with the insertion guide by guidance of the insertion guide portion. Accordingly, in a state where a bushing and the branch tube are self-aligned with each other, a lower end portion of the central conductor is inserted into the insertion portion.
摘要翻译：在分支管的上端部设置有具有用于瓷管和支管之间的连接的插入引导件的适配器。具有插入引导件的适配器包括沿着支管的轴向方向延伸的插入引导部。在将中心导体的下端插入灭弧室的插入部之后，通过插入引导部的引导将瓷管的凸缘通过插入引导件插入到适配器中。因此，在衬套和支管彼此自对准的状态下，中心导体的下端部插入插入部。

8. 发明申请

US20160197458A1 INSULATING SUPPORT FOR POWER SWITCHGEAR 有权
标题翻译：绝缘支持功率开关
公开(公告)号：US20160197458A1
公开(公告)日：2016-07-07
申请号：US14916020
申请日：2013-09-06
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Yuji YOSHITOMO , Hirokazu OTANI , Daisuke YOSHIDA
IPC分类号： H02B1/01 , F16M11/00
CPC分类号： H02B1/01 , F16M11/00 , H01B17/16 , H01B17/32
摘要： The present invention relates to an insulating support for a power switchgear that insulates and supports the main body of a power switchgear provided in atmospheric air between a generator and a main transformer. The insulating support includes a core part that is molded only from a resin material and has a cylindrical shape; an exterior covering part that is molded only from a rubber material, is attached to an outer peripheral face of the core part, and includes a plurality of pleated parts; an end metal fitting that is attached to one end of the core part and is attached to the main body of the power switchgear; and an end metal fitting that is attached to the other end of the core part and is provided on the ground surface.
摘要翻译：本发明涉及一种电力开关设备的绝缘支撑件，其绝缘并支撑设置在发电机和主变压器之间的大气中的电力开关设备的主体。绝缘支架包括仅由树脂材料成型且具有圆筒形状的芯部; 仅由橡胶材料成型的外部覆盖部分附接到芯部的外周面，并且包括多个折叠部分; 端部金属配件，其附接到所述芯部的一端并且附接到所述电力开关设备的主体; 以及附接到芯部的另一端并设置在地面上的端部金属配件。

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