51results about "Explosion switches closing" patented technology

An electric circuit switching device includes a housing; an igniter configured to release a combustion gas upon actuation; a tubular space formed in the housing; a projectile having conductivity, including a base body positioned at a first position in the tubular space in an initial state, and configured to be projected in a predetermined projecting direction by energy of the combustion gas; and a pair of first conductor pieces provided inserted, in a spaced apart state, into the tubular space at a position closer to the projecting direction side than the first position. The projectile further includes a pair of protrusions protruding from the base body in the projecting direction. The pair of protrusions of the projectile projected upon actuation of the igniter respectively come into contact with the pair of first conductor pieces, switching the first electric circuit from an interrupted state to a conductive state.

The invention relates to a high-voltage electrical system (1) for a motor vehicle, comprising: - an electric drive unit (2) with a first high-voltage component in the form of a high-voltage energy storage device (4) and at least one second high-voltage component in the form of a permanently excited electric machine (5a, 5b), wherein the high-voltage components have live parts at least temporarily even in the event of an accident involving the motor vehicle, - at least one auxiliary consumer (3) electrically connected to the electric drive unit (2), - a first protective device (10) for providing an electrical protective measure for the at least one secondary consumer (3), which, in the event of an accident, is designed to separate the at least one secondary consumer (3) from the electric drive unit (2) to prevent the feeding of a voltage induced by the permanent magnet electric machine (5a, 5b) and to discharge it to allow an accident-related mechanical deformation, and - a second protective device (14) for providing a mechanical protective measure for the electric drive unit (2), which is designed to absorb an accident-related force applied to the electric drive unit (2) in order to prevent an accident-related mechanical deformation of the high-voltage components.

A pyrotechnic switching element (1) is shown. In order to be able to actively short-circuit an electric machine in a stable manner, it is proposed that the pyrotechnic switching element (1) has at least three electrical connections, each for a phase line (L1, L2, L3) with phases offset from each other, and that the bridging element (6) in the bridging position (7b) electrically short-circuits the current conductors (4a, 4b, 4c) as a common neutral point (S) for the phase lines (L1, L2, L3).

A high voltage contact control system includes main contacts on positive and negative feeder lines and a short circuit protection system configured between the positive feeder line and the negative feeder line. The short circuit protection system is configured to be operably connected between the positive and negative feeder lines and configured to selectively provide a bypass path between the positive feeder line and the negative feeder line to divert current away from the first and second contacts. The short circuit protection system includes first and second state arc prevention elements (304a, 304b) that can operate in at least two modes. The bypass path is established by having one of the arc prevention elements in a fully on mode and another either fully on or in a linear mode.

The invention relates to an electric switching apparatus (1) having a housing (2) with a pressure chamber (3) in which a pyrotechnic trigger (4) is received, and to a piston assembly (5) arranged opposite the pyrotechnic trigger (4). The pressure chamber (3) is delimited by a piston surface (6) of the piston assembly in the housing (2), wherein by means of an activation of the pyrotechnic trigger a pressure (P) acts on the piston surface (6) and therefore the piston assembly (5) is moved. The electric switching apparatus (1) furthermore comprises a contact element (7) which is supported in the housing (2) in a standby position (8) and when the pyrotechnic trigger (4) is activated can be transferred together with the piston assembly (5) from the standby position (8) into an active position (9). The piston assembly (5) has at least one projection (10) which extends from the piston surface (6) in the direction of the pyrotechnic trigger (4) and has an active surface (11) facing said pyrotechnic trigger, wherein the projection (10) is provided to receive a first pressure pulse (I) at the active surface (11) and to transfer the first pressure pulse (I) to the contact element (7).

An electrical circuit switching device includes a discharge chamber in which a combustion gas from the igniter is discharged when the igniter is actuated; a casing having conductivity and defining at least a part of the discharge chamber; and a pair of first conductor pieces arranged outside the discharge chamber in a state of being separated from each other, each of the pair of first conductor pieces forming a part of the first electrical circuit, in which before actuation of the igniter, at least one of the pair of first conductor pieces and the casing are in a non-contact state with each other and thus the first electrical circuit is in a disconnection state, and when the igniter is actuated, the casing is deformed and thus expands to an outside of the discharge chamber by energy of a combustion gas generated by actuation of the igniter.

The invention relates to an electrical connection switching member having at least two electrically conductive contact elements and an electrically conductive contact piece for connecting the contact elements, wherein the contact piece is movable by means of a pyrotechnic drive along a movement path, and, as a result, the connection switching member can be changed from an electrically disconnected state to an electrically connected state, wherein the contact piece is designed so that the contact piece in the disconnected state does not electrically connect the contact elements and in the connected state electrically connects the contact elements, wherein the contact piece or the contact elements have at least one penetrating body, which is designed so that, during the change from the electrically disconnected state into the electrically connected state, the penetrating body penetrates into the contact piece or the contact elements by cutting or piercing. The present invention also relates to the use of the connection switching member according to the invention for short-circuiting a circuit on a fuel cell.

The invention relates to an electrical circuit (16), in particular an intermediate circuit (16), comprising an electrical component (1, 101); the invention further relates to an electrical component (1, 101) comprising a housing (2, 102) and a pyrotechnic switching element (3) arranged in the housing (2, 102). Advantageously, the electrical component (1, 101) has a resistor (4), in particular a thermal fuse resistor, arranged in a housing (2, 102), the pyrotechnic switching element (3) and the resistor (4) are electrically connected in series, and the resistor (4) has a resistance element (6), in particular consisting of a resistance wire (6a, 106a), and an arc extinguishing medium (7), in particular, the arc-extinguishing medium is powder-shaped and / or pellet-shaped, which surrounds the resistor element (6) at least in sections, in particular completely, in the course of the resistor element.

The invention relates to a high-voltage electrical system (1) for a motor vehicle having: - an electrical drive unit (2) with a first high-voltage component in the form of a high-voltage energy store (4) and at least one second high-voltage component in the form of a permanently energised electrical machine (5a, 5b), wherein the high-voltage components also have at least temporarily live parts in the event of an accident involving the motor vehicle, - at least one auxiliary consumer (3) electrically connected to the electrical drive unit (2), - a first protective device (10) for providing an electrical protective measure for the at least one auxiliary consumer (3) which, in the event of an accident, is designed to disconnect the at least one auxiliary consumer (3) from the electrical drive unit (2) in order to prevent a voltage induced by the permanently energised electrical machine (5a, 5b) from being fed in and to discharge it in order to allow an accident-related mechanical deformation, and - a second protective device (14) for providing a mechanical protective measure for the electrical drive unit (2), which is designed to absorb an accidental application of force to the electrical drive unit (2) to prevent an accidental mechanical deformation of the high-voltage components.

A pulse phase ablation biphasic PFA generator with finite energy source and delivery mechanism is disclosed, comprising: a signal source configured to output electrode input signals; a trigger circuit configured to trigger signals; at least one electrode channel circuit including a charge transfer source circuit including a source capacitor and coupled to the signal source to receive the electrode input signals, the charge transfer source circuit being configured to charge the source capacitor to a source voltage, a switching circuit coupled to charge transfer source circuit to receive the source voltage and to the trigger circuit to receive the trigger signals, and a charge transfer load circuit including a load capacitor coupled to the switching circuit; wherein the switching circuit further includes a plurality of spark gap switches activated by the trigger signals to cause the electrode channel to apply a biphasic waveform to electrodes configured to contact tissue.

A device (1) for interrupting an electrical current comprises a first terminal (11) and a second terminal (12) adapted to electrically connect two sections (100, 200) of an electrical power system, the device comprising a circuit breaker module (10) adapted to interrupt the electrical current. The circuit breaker module (10) is arranged between the first terminal (11) and the second terminal (12), and a first current path is formed between the first terminal (11) and the second terminal (12). A second current path is formed between the first terminal (11) and the second terminal (12) by providing a bypass device (50) connected in parallel with the first current path, where the bypass device (50) comprises a switch, preferably a mechanical switch, the fault circuit breaker module does not interfere with the operation of the apparatus.

An electric circuit switching device includes a housing; an igniter configured to release a combustion gas upon actuation; a tubular space formed in the housing; a projectile having conductivity and positioned at a predetermined first position in the tubular space in an initial state; a piston fixed to the projectile and disposed in the tubular space interposedly between the igniter and the projectile, and configured to be projected in a predetermined projecting direction by energy of the combustion gas; and a pair of first conductor pieces provided inserted, in a spaced apart state, into the tubular space at a position closer to the projecting direction side than the first position. The projectile projected integrally with the piston upon actuation of the igniter comes into contact with each of the pair of first conductor pieces, switching the first electric circuit from an interrupted state to a conductive state.

This electrical circuit switching device comprises: an ignitor provided to a housing; a cylindrical space formed inside the housing; an electroconductive projectile that is positioned at a first location in the cylindrical space in an initial state before actuation of the ignitor, and that is launched toward a launching direction due to energy of a combustion gas; a pair of first conductor pieces that are inserted in a state of being separated from each other at a second location further in the launching direction than the first location in the cylindrical space; and a support body that is arranged further in the launching direction than the first location in the cylindrical space and, at the second location, catches the projectile launched by actuation of the ignitor. When the ignitor is actuated and the projectile is launched, collision with the support body causes the projectile to deform, bringing the projectile and each of the pair of first conductor pieces into contact and causing the projectile to be locked by the pair of first conductor pieces, thereby switching a first electrical circuit from an interrupted state to an conducting state.

An electric circuit switching device includes an igniter provided in a housing; a tubular space formed in the housing; a projectile having conductivity, provided at a first position in the tubular space in an initial state before actuation of the igniter, and configured to be projected in a predetermined projecting direction by energy of the combustion gas; a pair of first conductor pieces provided inserted, in a spaced apart state, into the tubular space at a second position closer to the projecting direction side than the first position; and a support disposed closer to the projecting direction side than the first position in the tubular space, and configured to receive, at the second position, the projectile projected by actuation of the igniter. When the igniter is actuated and the projectile is projected, the projectile deforms by collision with the support, the projectile and each of the pair of first conductor pieces come into contact with each other, and the projectile becomes engaged with the pair of first conductor pieces, switching the first electric circuit from the interrupted state to the conductive state.

The invention relates to an electrical circuit breaker assembly (100) comprising a conductive element (10b) of an electrical circuit (1000) and a breaking device (110) activatable by a pyrotechnic element (112) and configured to disconnect the conductive element (10b) in a breaking zone delimited by a downstream point (10c), said electrical circuit breaker assembly (100) further comprising a contactor element (120) activatable by a pyrotechnic element (122), the contactor element (120) being configured to connect the downstream point (10c) of the breaking zone to a ground conductor (12) of the electrical circuit (1000), prior to disconnecting the conductive element (10b) or simultaneously with disconnecting said conductive element (10b). The invention also relates to a method implemented in such an electrical circuit breaker (100).Advantageously, it is thus possible to rapidly isolate a faulty electrical line in an aircraft and prevent the propagation of an electrical fault to the rest of the circuit (1000).

The invention relates to an electrical emergency switching device with a connecting element for establishing an electrically conductive connection between at least two contact arrangements. It comprises a pyrotechnic release for moving the connecting element from a standby position, in which the contact arrangements are electrically isolated from one another, to an operating position, in which the contact arrangements are electrically connected to one another, with the connecting element contacting a contact surface of each contact arrangement. The release, the connecting element, and the contact surfaces are arranged in a housing. The contact arrangements are each formed on a busbar that extends through a tunnel formed in the housing, the tunnels being arranged parallel to one another.In a special embodiment of the switching device, it can be mounted on existing busbars.

The present invention relates to a bypass switch and, more specifically, to a bypass switch used in a super-high voltage direct current transmission sub-module. A bypass switch according to one embodiment of the present invention comprises: a case in which a hollow part is formed; a first bus bar coupled to the front end of the case; a second bus bar coupled to the rear end of the case; a fixing contact which is provided in the hollow part and which is connected to the first bus bar; a movable contact which is provided in the hollow part, and which is connected to the second bus bar so as to come into contact with or be separated from the fixing contact; an insulating cover which is coupled to the rear surface of the second bus bar, and which has an accommodation part therein; a movable part extension rod which is provided on the accommodation part and which is coupled to the movable contact; and an actuator which is provided on the rear part of the insulating cover, and which provides power for moving the movable part extension rod.

The invention relates to a three-phase arc quenching apparatus having two pistons. The apparatus includes a first busbar, a second busbar, and a third busbar, each for a respective phase of a three-phase switchgear. The apparatus further includes a first piston and a second piston, each piston being made of an electrically conductive material. The apparatus further includes at least one pyrotechnic actuator arranged with the first piston and the second piston to axially move each of the first piston and the second piston when the at least one pyrotechnic actuator is activated. The first piston and the second piston are arranged relative to the first busbar, the second busbar, and the third busbar such that the axial movement brings the first piston into contact with both the first busbar and the second busbar, and brings the second piston into contact with both the first busbar and the third busbar.

The invention relates to a high-voltage on-board electrical system (1) for a motor vehicle, comprising:-an electric drive unit (2) having a first high-voltage component in the form of a high-voltage energy store (4) and at least one second high-voltage component in the form of a permanent magnet excitation motor (5a, 5b), the high-voltage assembly is at least temporarily provided with a voltage part even in the event of an accident of the motor vehicle; at least one auxiliary consumer (3) electrically connected to the electric drive unit (2); a first protection device (10) for providing electrical protection measures for the at least one auxiliary consumer (3); a first protection device (3) which is designed to separate the at least one auxiliary consumer (3) from the electric drive unit (2) in the event of an accident in order to prevent a voltage supply induced by the permanent magnet excitation motor (5a, 5b) and to discharge the at least one auxiliary consumer in order to allow a mechanical deformation caused by the accident; and a second protection device (14) for providing mechanical protection measures for the electric drive unit (2), which is designed to absorb an accident-induced force load acting on the electric drive unit (2) in order to prevent accident-induced mechanical deformation of the high-voltage component.

A pulse phase ablation biphasic PFA generator with finite energy source and delivery mechanism is disclosed, comprising: a signal source configured to output electrode input signals; a trigger circuit configured to trigger signals; at least one electrode channel circuit including a charge transfer source circuit including a source capacitor and coupled to the signal source to receive the electrode input signals, the charge transfer source circuit being configured to charge the source capacitor to a source voltage, a switching circuit coupled to charge transfer source circuit to receive the source voltage and to the trigger circuit to receive the trigger signals, and a charge transfer load circuit including a load capacitor coupled to the switching circuit; wherein the switching circuit further includes a plurality of spark gap switches activated by the trigger signals to cause the electrode channel to apply a biphasic waveform to electrodes configured to contact tissue.

The invention relates to an electric emergency switch device comprising a housing (1, 2), at least one electrically controllable pyrotechnic trigger (8, 9, 10), and at least two contact elements (3, 6) each having at least one contacting surface (6) located inside the housing and at least one contact lug (3) guided to the outside of the housing. The contacting surfaces (6) of all contact elements are at a distance from one another. An electrically conductive connection element (7) has a standby position and a self-locking insertion position, wherein the connection element (7) in the standby position does not touch any of the contacting surfaces (6) and in the insertion position contacts the contacting surfaces (6) of both contact elements, thus establishing an electrically conductive connection between the contact elements (3, 6). The connection element (7) is moved by the pyrotechnic trigger (8, 9, 10) from the standby position into the insertion position. A retaining part (11) holds the connection element (7) in the standby position and at a distance from the contact elements (3, 6) and isolated therefrom.

An arrester assembly including a first support member and a constant tension spring including a first end and a second end. The first end is mechanically coupled to the first support member such that the second end of the constant tension spring extends in a downward direction. The arrester assembly further includes a disconnector assembly that is electrically connected to the second end of the constant tension spring, a ground connector that is electrically connected to aground, and an arrester that is electrically connected between the disconnector assembly and the ground connector.

The present disclosure refers to a switch for interrupting of a circuit in which two voltage sources and at least one load are connected, wherein the switch actuate quickly in an emergency. The switch includes a main conductor connecting both electric voltage sources and said load, bridged by a supplemental conductor which is in parallel with the two voltage sources and the load, and prior to activation of the switch, interrupted and electrically open. A branch with an integrated fuse is in parallel with the main conductor and linked at two connecting points between the two electric voltage sources while the connecting points includes a movable section which under pre-determined conditions moves from contact with the main conductor into an alternate position in contact with the supplemental conductor, resulting in an open circuit across the main conductor and a closed circuit across the supplemental conductor.

An electrical circuit breaker assembly, and a method for its operation, including a conductive element of an electrical circuit and a cut-off device configured to be activated by a pyrotechnic element and that is configured to sever the conductive element in a cut-off zone delimited by a downstream point. The electrical circuit breaker assembly further includes a contactor element configured to be activated by a pyrotechnic element, the contactor element being configured to connect the downstream point of the cut-off zone to an earth conductor of the electrical circuit prior to a severing of the conductive element or simultaneously with the severing of the conductive element.

An electric circuit switching device includes a housing; an igniter configured to release a combustion gas upon actuation; a tubular space formed in the housing; a projectile having conductivity and positioned at a predetermined first position in the tubular space in an initial state; a piston fixed to the projectile and disposed in the tubular space interposedly between the igniter and the projectile, and configured to be projected in a predetermined projecting direction by energy of the combustion gas; and a pair of first conductor pieces provided inserted, in a spaced apart state, into the tubular space at a position closer to the projecting direction side than the first position. The projectile projected integrally with the piston upon actuation of the igniter comes into contact with each of the pair of first conductor pieces, switching the first electric circuit from an interrupted state to a conductive state.

An arc quenching device for a three-phase electrical switchgear. The device includes a first busbar, a second busbar and a third busbar, each of a respective phase of the three-phase switchgear. The device also includes a first piston and a second piston, each of an electrically conductive material. The device also includes at least one pyrotechnical actuator arranged with the first and second pistons to axially move each of the first and second pistons if the at least one pyrotechnical actuator is fired. The first and second pistons are arranged in relation to the first, second and third busbars such that said axial movement brings the first piston into contact with both the first busbar and the second busbar, and the second piston into contact with both the first busbar and the third busbar.

An electrical circuit switching device includes a discharge chamber in which a combustion gas from the igniter is discharged when the igniter is actuated; a casing having conductivity and defining at least a part of the discharge chamber; and a pair of first conductor pieces arranged outside the discharge chamber in a state of being separated from each other, each of the pair of first conductor pieces forming a part of the first electrical circuit, in which before actuation of the igniter, at least one of the pair of first conductor pieces and the casing are in a non-contact state with each other and thus the first electrical circuit is in a disconnection state, and when the igniter is actuated, the casing is deformed and thus expands to an outside of the discharge chamber by energy of a combustion gas generated by actuation of the igniter, the casing and each of the pair of first conductor pieces are brought into a state of being in contact with each other, and thus the first electrical circuit is brought into a conduction state.

A pyrotechnic switching element (1), a mounting rail (2) with this pyrotechnic switching element (1), and a control cabinet are shown. To enable the pyrotechnic switching element (1) to be mounted securely and stably, it is proposed that the pyrotechnic switching element (1) has, in the mounting area (10), a mounting rail receptacle (11) designed for mounting on a mounting rail (2), in particular a DIN rail, with at least one movable locking element (12) for locking into an undercut (2a) of the mounting rail (2).

An electric circuit switching device includes an igniter provided in a housing; a tubular space formed in the housing; a projectile having conductivity, provided at a first position in the tubular space in an initial state before actuation of the igniter, and configured to be projected in a predetermined projecting direction by energy of the combustion gas; a pair of first conductor pieces provided inserted, in a spaced apart state, into the tubular space at a second position closer to the projecting direction side than the first position; and a support disposed closer to the projecting direction side than the first position in the tubular space, and configured to receive, at the second position, the projectile projected by actuation of the igniter.