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1. 发明申请

US20230070198A1 SHORT-CIRCUIT SWITCHING DEVICE 有权
公开(公告)号：US20230070198A1
公开(公告)日：2023-03-09
申请号：US17800981
申请日：2020-02-19
申请人： SIEMENS ENERGY GLOBAL GMBH & CO. KG
发明人： FRANK SCHREMMER , ANDREAS ZENKNER
IPC分类号： H01H39/00 , H01L23/525
摘要： A short-circuit switching device, in particular a bypass switch, includes a semiconductor element with at least one p-n junction and at least one pyrotechnic ignition device. The semiconductor element is or at least can be in a blocking state prior to the ignition of the pyrotechnic ignition device on the basis of the involvement of the p-n junction. After the ignition of the pyrotechnic ignition device, the semiconductor element is at least partially destroyed, namely at least with respect to the at least one p-n junction, and made at least partially conductive independently of the current flow direction by using explosion gas released by the ignition device after an explosion.

2. 发明申请

US20230049101A1 Switch-off Device, High-Voltage Onboard Electrical System, and Motor Vehicle 有权
公开(公告)号：US20230049101A1
公开(公告)日：2023-02-16
申请号：US17789687
申请日：2021-01-26
申请人： Bayerische Motoren Werke Aktiengesellschaft
发明人： Florian PRITSCHER , Christian SCHARDAX
IPC分类号： H01H39/00 , H01H85/38 , B60L3/04 , B60R16/033
摘要： A switch-off device includes a current conductor for forming a load current path, a pyrotechnically activatable separating unit for interrupting the load current path in the event of a fault, including a separating element for detaching the current conductor and a pyrotechnic element for accelerating the separating element in the direction of the current conductor, and an arc extinguishing unit for extinguishing an arc, including a melting conductor which is not normally incorporated into the load current path and an extinguishing device for extinguishing the melting conductor.

3. 发明申请

US20220384130A1 CIRCUIT BREAKER 有权
公开(公告)号：US20220384130A1
公开(公告)日：2022-12-01
申请号：US17619582
申请日：2020-07-10
申请人： ASTOTEC AUTOMOTIVE GMBH
发明人： Dietmar HABA , Ludwig MARKER , Kurt AIGNER
IPC分类号： H01H39/00 , H01H9/30
摘要： 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.

4. 发明授权

US11482391B2 Pyrotechnic cut-off device 有权
公开(公告)号：US11482391B2
公开(公告)日：2022-10-25
申请号：US17597768
申请日：2020-07-21
申请人： ARIANEGROUP SAS
发明人： Frédéric Marlin , Romain Lorenzon , Lun Brevet , Philippe Lopez
IPC分类号： H01H39/00
摘要： A pyrotechnic cut-off device includes: a pyrotechnic igniter, a conductive portion and a movable piston, the piston being able to be displaced in a cavity along a direction of displacement following the actuation of the pyrotechnic igniter between a first position of passage of the current in the conductive portion and a second position of cut-off of the current, wherein the piston defines a first sealing portion having a narrowing of section along the direction of displacement, and the cavity has a wall defining a second sealing portion which extends on either side of the conductive portion and which has a narrowing of section along the direction of displacement, the first sealing portion being in contact with the second sealing portion along a contact surface extending on either side of the conductive portion when the piston is in the second position.

5. 发明授权

US11437210B2 Electric interruption switch comprising reactive coating in the reaction chamber 有权
公开(公告)号：US11437210B2
公开(公告)日：2022-09-06
申请号：US16960625
申请日：2019-01-08
申请人： Peter Lell
发明人： Peter Lell
IPC分类号： H01H33/02 , H01H39/00
摘要： An interruption switch is provided for interrupting high currents at high voltages, with a casing, which surrounds a contact unit defining the current path through the interruption switch which has a first and second connection contact and a separation region. The contact unit is formed such that a current can be supplied to it via the first connection contact and can be discharged therefrom via the second connection contact, or vice versa. The separation region is formed such that, when it is separated, the current path between the first connection contact and the second connection contact is interrupted. The separation region is arranged inside a reaction chamber. A coating with a reactive material is present in the reaction chamber. The reactive material is designed such that under the influence of an electric arc it attenuates or extinguishes the electric arc.

6. 发明授权

US11387068B2 Active/passive fuse module 有权
公开(公告)号：US11387068B2
公开(公告)日：2022-07-12
申请号：US17021774
申请日：2020-09-15
申请人： Littelfuse, Inc.
发明人： Michael Schlaak , Engelbert Hetzmannseder , Derek Lasini
IPC分类号： H01H89/00 , H01H39/00 , H01H85/00 , H01H85/02
摘要： An active/passive fuse module including a base, a busbar disposed on a top surface of the base and including a fuse element and first and second terminal portions extending from opposite ends of the fuse element, the fuse element extending over a cavity in the top surface of the base, a pyrotechnic interrupter (PI) disposed atop the base, the PI including a piston disposed within a shaft above the fuse element, a first pyrotechnic ignitor coupled to a controller, the first pyrotechnic ignitor configured to detonate and force the piston through the fuse element upon receiving an initiation signal from the controller, and a second pyrotechnic ignitor coupled to the busbar by a pair of leads, the second pyrotechnic ignitor configured to detonate and force the piston through the fuse element upon an increase in voltage across the leads.

7. 发明申请

US20220172916A1 CURRENT INTERRUPT DEVICE BASED ON THERMAL ACTIVATION OF FRANGIBLE GLASS BULB 有权
公开(公告)号：US20220172916A1
公开(公告)日：2022-06-02
申请号：US17371662
申请日：2021-07-09
申请人： 24M Technologies, Inc.
发明人： Ryan Michael LAWRENCE , Richard K. HOLMAN
IPC分类号： H01H37/32 , H01M10/44 , H01H39/00 , H01M50/581
摘要： Embodiments described herein relate generally to a current interrupt device (CID) including a frangible bulb that is configured to be thermally triggered. In some embodiments, the CID includes a breaking contact electrically coupled to a fixed contact and held in electrical contact by the frangible bulb. In some embodiments, the frangible bulb is configured to break at a temperature threshold. In some embodiments, the breaking contact is configured to bend, rotate and/or otherwise deform about a hinge point in order to become electrically disconnected from the fixed contact when the frangible bulb breaks. In some embodiments, opening the electrical circuit between the breaking contact and the fixed contact may prevent overcharging, overvoltage conditions, overcurrent conditions, thermal runaway, and/or other catastrophic failure events.

8. 发明申请

US20220093984A1 BATTERY PROTECTION APPARATUS AND BATTERY SYSTEM INCLUDING THE SAME 有权
公开(公告)号：US20220093984A1
公开(公告)日：2022-03-24
申请号：US17447753
申请日：2021-09-15
申请人： Samsung SDI Co., Ltd.
发明人： Kyusung CHO
IPC分类号： H01M10/48 , B60L3/04 , H01M10/42 , H01H39/00 , H02J7/00 , G01R31/3842
摘要： A battery protection apparatus including: a fuse element on a current path between a battery module and an external load to block the current path; and an ignition switch configured to receive an operating voltage from the battery module or a capacitor charged by the battery module, to ignite the fuse element.

9. 发明授权

US11276535B2 Passive triggering mechanisms for use with switching devices incorporating pyrotechnic features 有权
公开(公告)号：US11276535B2
公开(公告)日：2022-03-15
申请号：US16376381
申请日：2019-04-05
申请人： GIGAVAC, LLC
发明人： Murray Stephan McTigue , Daniel Sullivan , Michael Henry Molyneux
IPC分类号： H01H39/00 , H01H71/02 , H01H71/10
摘要： Disclosed herein are passive triggering mechanisms for activation of pyrotechnic features within electrical switching devices, such as contactor devices and fuse devices. The activation of the pyrotechnic features is configured to change the configuration of the internal components of the switching device and prevent current flow through the device. In some embodiments, the triggering mechanisms comprise features that respond to a magnetic field, such as a reed switch. In some embodiments, the reed switch responds to elevated current flow and can then use the signal with the elevated current flow to activate the pyrotechnic feature. In other embodiments, the reed switch uses a power signal from a secondary power source to activate the pyrotechnic feature.

10. 发明申请

US20220037094A1 SWITCH WITH PYROTECHNIC ACTUATOR 有权
公开(公告)号：US20220037094A1
公开(公告)日：2022-02-03
申请号：US17278734
申请日：2019-09-20
申请人： Eaton Intelligent Power Limited
发明人： Roger Burkett , Shailesh Kesarkar , Varsha Sabale , Asad Mujawar
IPC分类号： H01H1/20 , H01H39/00 , H01H1/50
摘要： A switch includes: an ignition chamber; a pyrotechnic actuator for releasing gas into the ignition chamber upon ignition; a first conductor and a second conductor, the first and second conductors including connection contacts; a third conductor moveable in a direction from a first position towards a second position upon actuation by the pyrotechnic actuator; and a breakable retaining member for retaining the third conductor in the first position prior to actuation by the pyrotechnic actuator, the retaining member breaking upon actuation of the pyrotechnic actuator to allow movement of the third conductor. In the first position, the third conductor is arranged between, and in electrical and physical contact with, the first and second conductors to define a current conduction path. In the second position, the third conductor is electrically and physically separate from the first and second conductors.

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