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1. 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.

2. 发明授权

US11908647B2 Circuit breaker 有权
公开(公告)号：US11908647B2
公开(公告)日：2024-02-20
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
CPC分类号： H01H39/006 , H01H9/30
摘要： A disconnect has a housing defining a cavity, a busbar fixed in the housing and extending through the cavity, a piston movable in the cavity past the piston for breaking a piece out of the busbar, and a plurality of metallic filter elements exposed in the cavity below the busbar and electrically connecting with the piece on activation of the disconnect. An igniter displaces the piston in the cavity into engagement with and past the busbar so as to break the piece out of busbar and displace it past the filter elements such that an arc created by breaking out the piece is drawn by the piece away from the busbar and energy of the arc heats and is dissipated in the filter elements.

3. 发明申请

US20230070630A1 PYROTECHNIC ACTUATOR 有权
公开(公告)号：US20230070630A1
公开(公告)日：2023-03-09
申请号：US17789667
申请日：2021-03-24
申请人： ASTOTEC AUTOMOTIVE GMBH
发明人： Markus MARKER
IPC分类号： F15B15/19
摘要： An actuator has a housing (14), a pyrotechnic charge (17) and a piston (11) which transitions into a pin (12) which in the initial state projects out of the housing (14) and upon ignition of the pyrotechnic charge (17) is retracted at least partially into the housing (14). According to the invention, the piston-pin combination consists of a main body (10) which is made of plastic and has a reinforcing element (13) in the region of the pin (12). The reinforcing element (13) has the shape of a sleeve or tube and surrounds the pin (12). It is form-fittingly connected to the pin (12), for example by the sleeve-like or tubular reinforcing element (13) having a shape (22) for reducing the inner cross-section.

4. 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.

5. 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.

6. 发明授权

US12098735B2 Pyrotechnic actuator 有权
公开(公告)号：US12098735B2
公开(公告)日：2024-09-24
申请号：US17789667
申请日：2021-03-24
申请人： ASTOTEC AUTOMOTIVE GMBH
发明人： Markus Marker
IPC分类号： F15B15/19
CPC分类号： F15B15/19
摘要： An actuator has a housing (14), a pyrotechnic charge (17) and a piston (11) which transitions into a pin (12) which in the initial state projects out of the housing (14) and upon ignition of the pyrotechnic charge (17) is retracted at least partially into the housing (14). According to the invention, the piston-pin combination consists of a main body (10) which is made of plastic and has a reinforcing element (13) in the region of the pin (12). The reinforcing element (13) has the shape of a sleeve or tube and surrounds the pin (12). It is form-fittingly connected to the pin (12), for example by the sleeve-like or tubular reinforcing element (13) having a shape (22) for reducing the inner cross-section.

7. 发明公开

US20230343532A1 PYROTECHNIC CIRCUIT BREAKER 审中-公开
公开(公告)号：US20230343532A1
公开(公告)日：2023-10-26
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： 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 bus bar (2), comprising a first detonator (7) for passive tripping and a second detonator (14) for active tripping. Both act on a severing piston (9), which severs the bus bar (2) at at least one severing point (5a, 5b) in the event of tripping. The first detonator (7) is connected, by means of two conductors (8a, 8b), to the two sides of a fuse, through which the current through the bus bar (2) flows, while the second detonator (14) has contacts (15a, 15b) for the connecting of an external tripping device. According to the invention, one of the Iwo detonators, preferably the first detonator (7), is disposed in the severing piston (9). The fuse is preferably formed integrally with the bus bar (2), the fuse being formed either by the severing point(s) (5a, 5b) or by a weakened region between two severing points (5a, 5b). It can easily be provided that, in the event of tripping, at least one conductor (8a, 8b) is interrupted in order to prevent an arc in the first detonator (7), e.g. by virtue of the fact that at least one conductor (8a, 8b) is disposed in the path of motion of the severing piston (9).

8. 发明授权

US11594391B2 Active/passive fuse module 有权
公开(公告)号：US11594391B2
公开(公告)日：2023-02-28
申请号：US17380436
申请日：2021-07-20
申请人： Littelfuse International Holding, LLC. , Astotec Automotive GmbH
发明人： Ganesh Nagaraj Channakesavelu , Engelbert Hetzmannseder , Peter Pöltl , Derek Lasini
IPC分类号： H01H85/041 , H01H85/02 , H01H39/00
摘要： An active/passive fuse module including a base, a busbar disposed on the base and including a fuse element extending over a cavity in a top surface of the base and having a plurality of weak points formed therein, a pyrotechnic interrupter (PI) disposed atop the base and including a piston disposed within a shaft above the fuse element, the piston having an edge with a geometry that corresponds to a geometry of a pattern defined by the weak points in the fuse element, a first pyrotechnic ignitor coupled to a controller and 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 and configured to detonate and force the piston through the fuse element upon an increase in voltage across the leads.

9. 发明申请

US20230037447A1 METHOD OF MAKING A CURRENT BREAKER 有权
公开(公告)号：US20230037447A1
公开(公告)日：2023-02-09
申请号：US17794186
申请日：2021-02-24
申请人： ASTOTEC AUTOMOTIVE GMBH
发明人： Wolfgang ART , Dietmar HABA
IPC分类号： H01H39/00
摘要： To produce a current disconnector for automotive safety systems having a conductor (1) which has at least one weakened disconnection point (7a, 7b), the conductor (1) is overmoulded in a plastic injection-moulding tool (2, 3). According to the invention, the disconnection point or disconnection points (7a, 7b) of the conductor (1) is/are produced in the plastic injection-moulding tool (2, 3). This not only simplifies production, it also prevents damage to the conductor, which is fragile owing to the weakened disconnection point, before it is stabilised by the overmoulding. Preferably, the disconnection point or disconnection points (7a, 7b) is/are produced by the closing movement of the plastic injection-moulding tool (2, 3). The disconnection point or disconnection points (7a. 7b) can also be produced in the preheating region of the plastic injection-moulding tool.

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