公开(公告)号：US12202530B2

公开(公告)日：2025-01-21

申请号：US17436084

申请日：2020-11-11

Applicant: CRRC Nanjing Puzhen Co., Ltd.

Inventor： Rui Shi ,  Zhi Chen ,  Fan Yang ,  Xingwen Wang ,  Juxing Liang ,  Le Wang

IPC: B61G5/10 ,  B61G7/14 ,  H01H9/30 ,  B61L15/00

Abstract: An intermediate car electric coupler control circuit for a subway vehicle includes a coupling state relay, a power supply circuit for a decoupling electromagnetic valve, a first power supply circuit for an electric coupler control relay, a second power supply circuit for an air path and electric coupler module control electromagnetic valve, and a third power supply circuit for a bus control contactor. A coupler coupling operation is performed exactly according to a sequence of a mechanical coupling, an air path conduction, an electric coupler extension, and a medium- and low-voltage bus closing, wherein contacts of electric couplers are prevented from being damaged. A coupler decoupling operation is performed exactly according to a sequence of a contact heavy-current removal, an electric coupler withdrawal, an air path disconnection and a mechanical decoupling, wherein the contacts are prevented from being damaged by a heavy current arcing and a discharge.

公开(公告)号：US12033818B2

公开(公告)日：2024-07-09

申请号：US17419153

申请日：2019-12-18

Applicant: HITACHI ENERGY LTD

Inventor： Sushil A. Shinde ,  Carl R. Kurinko ,  Matthew D. Cuppett ,  Paul Jason Vladuchick ,  Christian Daehler ,  Thomas E. Hoburn

IPC: H01H9/30 ,  H01H33/16

CPC classification number: H01H33/165 ,  H01H9/30

Abstract: A circuit breaker having at least one capacitor assembly connected in parallel across a contact of the circuit breaker. The capacitor assembly can be housed with the contact within a sealed enclosure of the circuit breaker. The enclosure can be configured to house an insulating medium that is configured to reduce or quench an arc(s) that may form at least when the contact of the circuit breaker is displaced from a closed position to an open position. The capacitor assembly, which includes a transient recovery voltage (TRV) capacitor, can be configured to delay terminal fault and short line fault TRV and the rate of rise of the initial TRV (ITRV) that can appear across the open contact of the circuit breaker.

公开(公告)号：US11942858B2

公开(公告)日：2024-03-26

申请号：US17660296

申请日：2022-04-22

Applicant: VOLVO TRUCK CORPORATION

Inventor： Anton Klintberg ,  Faisal Altaf ,  Tobias Smidebrant

IPC: H02M1/34 ,  B60L3/00 ,  H01H9/02 ,  H01H9/30 ,  H02J7/00

CPC classification number: H02M1/34 ,  H01H9/0271 ,  H01H9/30 ,  B60L3/0046 ,  H02J7/0031

Abstract: A switching arrangement for reducing contactor wear of an energy storage system having a plurality of battery packs arranged in parallel for powering a load. The switching arrangement includes a contactor for each battery pack. The contactors connect and disconnect the battery packs relative to the load by closing and opening, respectively, an electric arc reducing circuitry associated to one of the contactors. The switching arrangement is configured to electrically disconnect the battery packs from the load by means of the contactors such that the contactor being associated with the electric arc reducing circuitry is opened last.

公开(公告)号：US20240071701A1

公开(公告)日：2024-02-29

申请号：US18271254

申请日：2022-01-07

Applicant: DAICEL CORPORATION

Inventor： Tomohide FUJIWARA ,  Katsuya TONE

IPC: H01H39/00 ,  H01H9/30

CPC classification number: H01H39/006 ,  H01H9/30 ,  H01H2039/008

Abstract: An electric circuit breaker device includes: an igniter provided to a housing; a projectile disposed in an accommodating space, the accommodating space being formed in the housing and extending in one direction, the projectile being to be projected along the accommodating space by energy received from the igniter; a conductor piece that is provided to the housing, forms a portion of an electric circuit, includes in a portion thereof a cutoff portion to be cut off by the projectile that moves by the energy received from the igniter, and is disposed with the cutoff portion crossing the accommodating space; a coolant material disposed in an arc-extinguishing region, the arc-extinguishing region being positioned within the accommodating space, on a side opposite to the projectile prior to actuation of the igniter with the cutoff portion interposed between the arc-extinguishing region and the projectile, and configured to receive the cutoff portion cut off by the projectile; and a modified resin material that is disposed in the accommodating space and that is to be modified by heat associated with actuation of the igniter.

公开(公告)号：US11869741B2

公开(公告)日：2024-01-09

申请号：US17432112

申请日：2020-02-18

Applicant: Eaton Intelligent Power Limited

Inventor： Christoph Bausch ,  Julia Otte ,  Kai Schroeder ,  Ute Molitor

IPC: H01H9/30 ,  H01H9/34 ,  H01H73/18

CPC classification number: H01H9/342 ,  H01H73/18 ,  H01H2009/305

Abstract: A switching device includes an arc extinguishing chamber, an orifice for outflow of the gases from the arc extinguishing chamber, and a multilayer wire cloth or fabric having at least a first wire layer and a second wire layer. The first wire layer and the second wire layer have a respective cloth or fabric structure including respective warp yarns and weft yams. The first and second wire layers are disposed in a stacked configuration in the orifice such that a weaving direction of the warp yams of the first wire layer is rotated by an angle in relation to a weaving direction of the warp yarns of the second wire layer, and a weaving direction of the weft yarns of the first wire layer is rotated by an angle in relation to a weaving direction of the weft yarns of the second wire layer.

公开(公告)号：US11798750B2

公开(公告)日：2023-10-24

申请号：US17838463

申请日：2022-06-13

Applicant: Arc Suppression Technologies

Inventor： Reinhold Henke ,  Warren Kahle

IPC: H02H9/00 ,  H01H1/00 ,  G01R31/327 ,  H01H50/04 ,  H01H9/30 ,  H01H9/54 ,  H01R13/05 ,  H01R13/66 ,  H01R13/70 ,  H01R24/30 ,  H02H1/00 ,  H02H9/08 ,  H01H33/59 ,  H01H50/44

CPC classification number: H01H1/0015 ,  G01R31/3272 ,  G01R31/3277 ,  H01H9/30 ,  H01H9/54 ,  H01H33/593 ,  H01H50/045 ,  H01H50/44 ,  H01R13/052 ,  H01R13/6666 ,  H01R13/70 ,  H01R24/30 ,  H02H1/0015 ,  H02H9/08

Abstract: An arc suppressing circuit configured to suppress arcing across a power contactor coupled to an alternating current (AC) power source having a predetermined number of phases, each contact of the power contactor corresponding to one of the predetermined number of phases includes a number of dual unidirectional arc suppressors equal to the predetermined number of phases of the AC power source. Each dual unidirectional arc suppressor includes a first phase-specific arc suppressor configured to suppress arcing across the associated contacts in a positive domain, a a second phase-specific arc suppressor configured to suppress arcing across the associated contacts in a negative domain, and a coil lock controller, configured to be coupled between a contact coil driver of the power contactor, configured to detect an output condition from the contact coil driver and inhibit operation of the first and second phase-specific arc suppressors over a predetermined time.

公开(公告)号：US11688574B2

公开(公告)日：2023-06-27

申请号：US17472707

申请日：2021-09-13

Applicant: SONG CHUAN PRECISION CO., LTD.

Inventor： Sung-Jen Wu

IPC: H01H9/30 ,  H01H50/12

CPC classification number: H01H50/12 ,  H01H9/30

Abstract: An electromagnetic relay includes a base, at least one fixed conductive sheet assembly, at least one movable conductive sheet assembly, at least one arc blow component, an electromagnet and an outer cap. The fixed conductive sheet assembly includes a fixed connecting plate and a fixed contact, and the movable conductive sheet assembly includes a movable connecting plate and a movable contact. The base is made of a thermal conductive polymer, and the fixed connecting plate has a first heat conduction part installed in the base and a second heat conduction part connected to the first heat conduction part and extended to an outer side of the base. The electromagnetic relay further includes at least two thermal conduction components installed in the base and symmetrically configured on both opposite sides of the fixed and movable contacts respectively for dissipating the heat generated by the electromagnetic relay.

公开(公告)号：US11676777B2

公开(公告)日：2023-06-13

申请号：US17680881

申请日：2022-02-25

Applicant: ARC Suppression Technologies, LLC

Inventor： Reinhold Henke

IPC: H02H3/00 ,  H01H9/30 ,  H01H9/54 ,  H01H89/00

CPC classification number: H01H9/30 ,  H01H9/542 ,  H01H9/547 ,  H01H89/00

Abstract: A two terminal arc suppressor for protecting switch, relay or contactor contacts and the like comprises a two terminal module adapted to be attached in parallel with the contacts to be protected and including a circuit for deriving an operating voltage upon the transitioning of the switch, relay or contactor contacts from a closed to an open disposition, the power being rectified and the resulting DC signal used to trigger a power triac switch via an optoisolator circuit whereby arc suppression pulses are generated for short predetermined intervals only at a transition of the mechanical switch, relay or contactor contacts from an closed to an open transition and, again, at an open to a close transition during contact bounce conditions.

公开(公告)号：US11600461B2

公开(公告)日：2023-03-07

申请号：US16603183

申请日：2018-04-06

Applicant: Schaltbau GmbH

Inventor： Johannes Schmid ,  Daniel Hammerl ,  Korbinian Kreuzpointner

IPC: H01H9/30 ,  H01H50/54 ,  H01H9/44

Abstract: The present invention refers to a switch device with at least one contact point, the contact point having a first contact and a second contact, the first and second contacts being spaced apart from one another in an open position and electrically contacting one another in a closed position, the contact point being assigned an arc blowout device for generating a magnetic blowing field, the blowout field being such that an arc produced when the contact point is opened is blown away from the contact point. In accordance with the invention, at least one of the two contacts is provided with a non-conductive cover on a non-contact-facing side which faces away from the other contact, which cover prevents a base point of the arc from crossing the non-contact-facing side.

公开(公告)号：US20220384130A1

公开(公告)日：2022-12-01

申请号：US17619582

申请日：2020-07-10

Applicant: ASTOTEC AUTOMOTIVE GMBH

Inventor： Dietmar HABA ,  Ludwig MARKER ,  Kurt AIGNER

IPC: H01H39/00 ,  H01H9/30

Abstract: The invention relates to a current breaker in which a busbar (18) passes through a cavity (25) in which a piston (14) can be moved. By moving the piston (14), a circuit board (19) is broken out of the busbar (18), thus interrupting the current flow. The current breaker has at least one metal filter element (16) which, according to the invention, extends up to the cavity (25). This ensures that the disconnected circuit board (19) touches the at least one filter element (16) during tripping. After the circuit board (19) is separated from the busbar (18), an electric arc is formed which, due to the filter element (16) being touched by the circuit board (19), switches over to the metal filter element (16) when the circuit board (19) continues to move, as a result of which the energy from the system inductance is converted into heat loss in the filter element (16). When suitably designed, there is only a moderate increase in pressure in the current breaker and thus practically no external effect. Additionally, an extinguishing agent, e.g. a silicone oil or a silicone-containing grease, may be provided. The housing can be sealed and the filter elements (16, 16′) can be insulated from the exterior.