18results about "Explosion switches closing" patented technology

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).

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.

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 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.

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.

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).

The invention relates to a switch for interrupting a circuit in which two direct voltage sources (S1, S2) and at least one load (L) are integrated and interconnected with one another, wherein the object of the invention is to interrupt the circuit quickly and effectively when required, such that after the circuit has been interrupted, potential contact between the load and any of the voltage sources must be eliminated, and in addition potential interaction between the load and any other load or circuit that can be electrically interconnected to the load must also be eliminated. To this end, in the region between the two voltage sources (S1, S2) and the load (L), a main electrical conductor (10) is bridged by an auxiliary electrical conductor (11), which is electrically connected in parallel to the voltage sources (S1, S2), to the load (L), and before activation of the switch, i.e. during normal operation of the circuit (1), is interrupted by a gap (G) and thus cannot be electrically penetrated.

An arrangement for interrupting current (1 ) comprises a first and a second terminal (11,12) being adapted to electrically connect two sections (100,200) of a power system, the arrangement comprising a circuit breaker module (10) adapted to interrupt current The circuit breaker module (10) is provided between the first and second terminals (11, 12), forming a first current path between the first and second terminals (11, 12). By providing a bypass device (50) connected in parallel with the first current path, thereby forming a second current path between the first and second terminals (11, 12), wherein the bypass device (50) comprises a switch, preferably a mechanical switch, a faulty circuit breaker module does not impede the operation of the arrangement.

Shore power connection (20) for installation on a ship (10) comprising: at least one high-voltage cabinet (21); and at least one earthing switch (100) wherein the earthing switch (100) is configured to switch from an open state to a closed state in less than 4 ms.

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