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1. 发明公开

US20240304402A1 CIRCUIT BREAKER 审中-公开
公开(公告)号：US20240304402A1
公开(公告)日：2024-09-12
申请号：US18471614
申请日：2023-09-21
申请人： SENSATA TECHNOLOGIES CHANGZHOU CO., LTD.
发明人： JIGANG XU , WEI SUN , JIM JI , FELIX ZHANG
IPC分类号： H01H39/00 , H01H9/30
CPC分类号： H01H39/006 , H01H9/30
摘要： The present application discloses a circuit breaker comprising: a housing defining an operating chamber and an arc extinguishing chamber; a severing mechanism provided in the operating chamber and comprising a punch, the severing mechanism being configured to sever via the punch a conductor extending through the housing between the operating chamber and the arc extinguishing chamber; an arc extinguishing medium in the form of a wire mesh and filled within the arc extinguishing chamber; and a gas flow guiding mechanism disposed around the arc extinguishing medium and configured to guide the gas from the punch of the severing mechanism through the arc extinguishing medium when the conductor extending through the housing is severed by the severing mechanism.

2. 发明授权

US12057280B2 Pyrotechnic circuit breaker 有权
公开(公告)号：US12057280B2
公开(公告)日：2024-08-06
申请号：US17779922
申请日：2021-04-22
申请人： ASTOTEC AUTOMOTIVE GMBH
发明人： Horst Weinkopf , Engelbert Hetzmannseder
IPC分类号： H01H9/30 , H01H39/00
CPC分类号： H01H39/006 , H01H9/30
摘要： A pyrotechnic current breaker with passive and active triggering for severing a busbar through which electric current flows has a housing through which passes the busbar that is formed with at least one break point and an adjacent fuse part. A separating punch is shiftable in the housing past the busbar to cut same. There is also a first igniter for passive triggering and moving the punch past the busbar and a second igniter for active triggering and moving the punch past the busbar. Both of the igniters act on the separating punch such that, when triggered, the separating punch cuts the busbar at the break point. The first igniter has two conductors connected to two sides of the fuse part and the second igniter has contacts connectable to an external trigger. One of the igniters is in the separating punch.

3. 发明公开

US20240222053A1 PYROTECHNIC CIRCUIT INTERRUPTER 审中-公开
公开(公告)号：US20240222053A1
公开(公告)日：2024-07-04
申请号：US18288196
申请日：2022-03-24
申请人： ASTOTEC AUTOMOTIVE GMBH
发明人： Ludwig MARKER , Dietmar HABA
IPC分类号： H01H39/00 , H01H9/30
CPC分类号： H01H39/006 , H01H9/30
摘要： The invention relates to a pyrotechnic current breaker (1) for severing a conductor (9), having a housing (2) which is equipped with a cutting piston (8) and an ignition unit (16) for driving the cutting piston (8). The conductor (9) passes through the housing (2), and when the igniter (18) is triggered, the cutting piston (8) severs a printed circuit board (12) from the conductor (9). According to the invention, at least one spacer (20), preferably three spacers (20), are provided between the cutting piston (8) and the conductor (9), said spacers having the shape of pins and lying on a circle (19), the center of which lies on the central axis (24) of the cutting piston (8). If the side of the spacers facing the printed circuit board (12) is angled such that the region (21) of each spacer (20) adjoining the central axis (24) has a shorter distance to the printed circuit board (12) than the region (23) facing away from the central axis (24), the spacers (20) are pushed towards the central axis (24) when the igniter is triggered such that the spacers can be received in a recess (22). Furthermore, the region (21) adjoining the central axis (24) is easily deformable such that changes in the distance between the cutting piston (8) and the conductor (9) due to temperature fluctuations are compensated for.

4. 发明公开

US20240203674A1 PYROTECHNIC CIRCUIT BREAKER 审中-公开
公开(公告)号：US20240203674A1
公开(公告)日：2024-06-20
申请号：US18552117
申请日：2022-03-17
申请人： Autoliv Development AB
发明人： Fabien LAMY , Maxime GRANDIAU
IPC分类号： H01H39/00 , H01H9/38 , H01H9/52
CPC分类号： H01H39/006 , H01H9/38 , H01H9/52
摘要： A pyrotechnic circuit breaker comprising:

a housing,
an electrical conductor passing through the housing,
at least one blade, able to move so as to cut at least one portion of the electrical conductor, the breaking of the electrical conductor defining a cut area separating a first cut end of the electrical conductor from a second cut end of the electrical conductor,
a pyrotechnic actuator,

the circuit breaker having a first arc path allowing a first electric arc to be established directly from the first cut end to the second cut end,

characterized in that the circuit breaker comprises conductive cooling features so as to have a secondary arc path passing through a first conductive cooling feature and through a secondary conductive cooling feature or a last conductive cooling feature.

5. 发明授权

US11996252B2 Electric circuit breaker 有权
公开(公告)号：US11996252B2
公开(公告)日：2024-05-28
申请号：US17622769
申请日：2020-06-24
申请人： MERSEN France SB SAS , ArianeGroup SAS
发明人： Antoine Gerlaud , Guillaume Lemmel , Jean-François Oeuvrard
IPC分类号： H01H39/00 , H01H9/10 , H01H85/02
CPC分类号： H01H39/006 , H01H9/106 , H01H85/0241 , H01H2039/008
摘要： An electric circuit breaker comprising a switch, an arc extinguishing chamber and a fuse configured to be electrically connected between first and second terminals after the switch has tripped, further comprises a connection device comprising a gate configured to be broken after the switch has tripped only when at least one of the temperature, the pressure inside the arc extinguishing chamber or the intensity of an electrical arc present in the arc extinguishing chamber passes a predefined threshold, the connection device being configured to connect an electrode of the fuse to one of the terminals of the electrical conductor only once the gate is broken.

6. 发明公开

US20240136136A1 ELECTRICAL DEVICE AND POWER CUT-OFF SYSTEM COMPRISING SUCH A DEVICE 审中-公开
公开(公告)号：US20240136136A1
公开(公告)日：2024-04-25
申请号：US18547608
申请日：2022-02-24
申请人： MERSEN FRANCE SB SAS
发明人： Arokiaraj ANDONISSAMY , Sébastien Roger Pierre DUBOC , Guillaume LEMMEL , Jean-François OEUVRARD
IPC分类号： H01H85/02 , H01H39/00
CPC分类号： H01H85/0241 , H01H39/006
摘要： Electrical device comprising a body defining a closed inner space, a first electrode, a second electrode and a third electrode, a free end of each electrode opening inside the inner space, the free ends of each electrode being arranged, inside the inner space, apart from one another and opposite the other electrodes, the electrical device being configured to prohibit the current from flowing between the first electrode and the third electrode when the electric current or the electric voltage between the first electrode and the second electrode remains below a predefined threshold value; when the electric current or the electric voltage exceeds the threshold value, allow the current to flow between the first electrode and the third electrode.

7. 发明授权

US11862422B2 Electrical fuse, method for operating an electrical fuse, and electrical traction network 有权
公开(公告)号：US11862422B2
公开(公告)日：2024-01-02
申请号：US17441629
申请日：2020-03-19
申请人： Volkswagen Aktiengesellschaft
发明人： Roland Kube
IPC分类号： H01H39/00 , B60L3/04 , B60R16/023
CPC分类号： H01H39/006 , B60L3/04 , B60R16/0232
摘要： An electrical fuse that includes an electro-pyrotechnic igniter, a separating element, which can be moved by the electro-pyrotechnic igniter, and a busbar with a separating section. A separating element is arranged so that it can move after the electro-pyrotechnic igniter is triggered to separate the busbar. At least one inductive coupler is arranged on the busbar or a high-voltage line. The electrical fuse further includes a control circuit for controlling an ignition current for triggering the electro-pyrotechnic igniter. The control circuit includes at least one semiconductor switch for switching the ignition current provided, at least one capacitor, connected to a control input of the semiconductor switch, and a diode coupled on one side to the at least one inductive coupler and on the other side to the capacitor and a control input of the semiconductor switch.

8. 发明公开

US20230377782A1 DEADFRONT ARRESTER WITH DISCONNECTOR DEVICE 审中-公开
公开(公告)号：US20230377782A1
公开(公告)日：2023-11-23
申请号：US18366143
申请日：2023-08-07
申请人： Hubbell Incorporated
发明人： Bastiaan Hubertus van Besouw , David Charles Hughes
IPC分类号： H01C7/12 , H01C1/02 , H01H39/00
CPC分类号： H01C7/12 , H01C1/02 , H01H39/006
摘要： Systems for disconnecting a surge arrester. One embodiment provides a surge arrester comprising a housing, a connecting interface configured to connect to an electrical power grid, and a disconnector device coupled to the connecting interface. A metal oxide varistor stack is coupled to the disconnector device, and a ground side connection is coupled to the metal oxide varistor stack, the ground side connection configured to connect to a system ground. The disconnector device is configured to disconnect the connecting interface from the system ground based on a predetermined disconnection condition.

9. 发明公开

US20230368996A1 ELECTRIC CIRCUIT BREAKER DEVICE 审中-公开
公开(公告)号：US20230368996A1
公开(公告)日：2023-11-16
申请号：US18226117
申请日：2023-07-25
申请人： DAICEL CORPORATION
发明人： Toshiyuki SAKAI , Tomohide FUJIWARA
IPC分类号： H01H39/00 , H01H71/02
CPC分类号： H01H39/006 , H01H71/0264 , H01H71/0207
摘要： An electric circuit breaker device includes an igniter, a rod-like projectile, and a conductor portion for forming a part of an electric circuit, and an insulating closed space. The conductor portion includes a first and second connection portions and a cut portion at an intermediate portion, and is disposed with a surface of the cut portion. The rod-like projectile has an end portion facing the cut portion. The insulating closed space has an opening portion facing the conductor portion, a closed end surface opposite to the opening portion in the housing axial direction, and four side surfaces between the opening portion and the closed end surface. A width (W1) of the opening portion of the insulating closed space and a width (L1) of the end portion of the rod-like projectile have a relationship of W1>L1 and W1−L1≥0.25 mm.

10. 发明公开

US20230322088A1 EMERGENCY DISCONNECT CIRCUIT FOR HIGH-VOLTAGE BATTERY ELECTRIC SYSTEM AND MOTOR VEHICLE HAVING THE SAME 审中-公开
公开(公告)号：US20230322088A1
公开(公告)日：2023-10-12
申请号：US17717286
申请日：2022-04-11
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Li-Pen John Ho , Calvin Goodman , Rajesh Nagappala
IPC分类号： B60L3/04 , B60L3/00 , H01H39/00 , H02J7/00 , H02H7/18
CPC分类号： B60L3/04 , B60L3/0046 , H01H2039/008 , H02J7/0031 , H02H7/18 , H01H39/006
摘要： An emergency disconnect circuit for use with a high-voltage (HV) bus of a battery electric system, e.g., aboard a mobile system, includes a pyrotechnic switch and a manual switch. The pyrotechnic switch configured irreversibly opens in response to an electronic triggering signal to disconnect an HV battery pack from the HV bus in a first manner. The manual switch is arranged on a low-voltage (LV) bus in series with and between the pyrotechnic switch and an LV power supply. Transition of the manual switch from an open position to a closed position connects the LV power supply to the pyrotechnic switch. This causes the LV power supply to discharge the triggering signal to the pyrotechnic switch. When used aboard a mobile system, an electronic monitoring unit generates the triggering signal in a second manner in response to a threshold impact event.

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