170results about "Conductor severing switches" patented technology

An electric circuit breaker device includes: an igniter provided to a housing; a projectile disposed in an accommodating space formed in the housing, the projectile being to be projected along the accommodating space by energy received from the igniter; a conductor piece that is provided to the housing, forms a portion of an electric circuit, and includes in a portion thereof a cutoff portion disposed crossing the accommodating space and to be cut off by the projectile; and an arc-extinguishing region that is provided in the accommodating space and in which a coolant material is disposed, the arc-extinguishing region being configured to receive the cutoff portion after being cut off. The projectile includes a first projectile configured to cut off the cutoff portion from the conductor piece by being projected by the energy received from the igniter, and a second projectile configured to press, into the arc-extinguishing region, the cutoff portion cut off by the first projectile.

An electric circuit breaker device includes a housing, an igniter, a projectile, and a conductor piece including, between a first connection end portion and a second connection end portion, a cutoff portion to be cut by movement of the projectile, in which a boundary portion with the cutoff portion from which the cutoff portion is cut in the first connection end portion of the conductor piece held in the housing is defined as a first cutting edge portion, and a boundary portion with the cutoff portion from which the cutoff portion is cut in the second connection end portion is defined as a second cutting edge portion, and a groove is formed at a position corresponding to the conductor piece crossing an accommodating space and in a predetermined inter-edge inner wall region positioned between the first cutting edge portion and the second cutting edge portion, in an inner wall surface of the housing.

A circuit interrupter may include a plurality of mounting components comprised of an insulating material for receiving a first busbar and a second busbar component. A circuit interrupter may include an arc chamber for providing a primary arc path for a current between the first and second busbar components. A circuit interrupter may include a pyrotechnic charge and pusher component located in between the first and second busbar components and the arc chamber. The pusher component may be comprised of an insulating material and can be triggered upon detection of a fault to direct ionized particles or resulting gases toward the arc chamber.

An electric circuit breaker device includes: an igniter provided to a housing; a projectile disposed in an accommodating space formed in the housing, the projectile being configured to be projected along the accommodating space by energy received from the igniter; a conductor piece forming a portion of an electric circuit, and includes a cutoff portion crossing the accommodating space and configured to be cut off by the projectile that moves by the energy received from the igniter; a coolant material disposed in an arc-extinguishing region and positioned within the accommodating space while opposing the projectile prior to actuation of the igniter with the cutoff portion interposed between the arc-extinguishing region and the projectile, and configured to receive the cutoff portion cut off by the projectile; and a resin material disposed in the accommodating space and configured to be modified by heat associated with actuation of the igniter.

An electric circuit breaker device includes: an igniter provided to a housing; a projectile disposed in an accommodating space formed in the housing, the projectile being to be projected along the accommodating space by energy received from the igniter; a conductor piece that is provided to the housing, forms a portion of an electric circuit, includes in a portion thereof a cutoff portion to be cut off by the projectile, and is disposed with the cutoff portion crossing the accommodating space; an arc-extinguishing region positioned on a side opposite to the projectile prior to actuation of the igniter with the cutoff portion interposed between the arc-extinguishing region and the projectile, and configured to receive the cutoff portion cut off by the projectile; a first coolant material disposed in the arc-extinguishing region; and a second coolant material disposed between the projectile and the cutoff portion in the accommodating space prior to actuation of the igniter.

A shutdown device includes: a pyro-fuse that includes a bus bar inserted into a power supply path and a piston disposed above the bus bar, the piston moving toward the bus bar to divide the bus bar; and a melting fuse connected in parallel to the pyro-fuse, in which the melting fuse includes a fuse case, a fuse element provided in the fuse case and is fused when an overcurrent flows, and an arc-extinguishing material provided in the fuse case and being in a granular phase, and the fuse element extends along a direction intersecting a direction in which the piston moves.

A fuse that includes a bus bar and cuts off the bus bar in response to an ignition signal, a first current detector that includes a first resistor and detects a current flowing through the bus bar, and a second current detector that includes a second resistor and detects the current flowing through the bus bar are included, wherein the first resistor and the second resistor are integrated with the bus bar, and a current having the same magnitude as the current flowing through the bus bar flows in the first resistor and the second resistor, and the bus bar is cut off between the first current detector and the second current detector in response to the ignition signal, or the first resistor of the first current detector is cut off in response to the ignition signal.

Safety element, in particular for a motor vehicle power line, comprising - a control circuit and - a pyrotechnic fuse (2), wherein - the control circuit comprising a printed circuit board (24) - at least one measuring sensor, - at least one temperature sensor and - at least one processor (26) evaluating the measuring sensor and the temperature sensor, - the pyrotechnic safety device (2) - a first connecting tab (8a), - a second connecting tab (8b), - a separation point (16) arranged between the connecting tabs (8a, b), and - has a pyrotechnic drive acting on the separation point (16), wherein - the drive (12) has ignition contacts (14) on its side facing away from its explosive surface (22), and characterized in that, - the pyrotechnic fuse (2) is attached directly to the circuit board (24) at least in a form-fitting manner, - that the drive (12) is designed in such a way that it can be triggered both intrinsically and extrinsically, in which - in the event of an intrinsic triggering, the processor (26) applies an ignition voltage to the drive (12) via a connection between the processor (26) and the ignition contacts (14) and - the ignition contacts (14) are set up for connection to an external ignition signal and the external ignition signal is applied to the ignition contacts (14) during external triggering.

An interrupter, a power distribution device, and a vehicle are provided, and relate to the field of interrupter technologies. The interrupter includes: a base having an arc chute; a sealing cover, disposed on one side of an opening of the arc chute, where the sealing cover has a first channel that passes through a thickness direction of the sealing cover, and the first channel communicates with the opening of the arc chute; a current-carrying copper busbar, where the current-carrying copper busbar is disposed in parallel with the sealing cover, the current-carrying copper busbar passes through the sealing cover in a direction perpendicular to the thickness direction of the sealing cover, a sealed structure in which a boss and a clamping slot are matched is formed between the sealing cover and the current-carrying copper busbar, a part that is of the current-carrying copper busbar and that is located in the first channel includes a thinned part, and a thickness of the thinned part is less than a thickness of another part of the current-carrying copper busbar; and a piston, where the piston is at least partially accommodated in the first channel, and a projection of the piston in the thickness direction of the sealing cover at least partially overlaps with the thinned part. In the interrupter provided in this application, the sealed structure in which the boss and the clamping slot are matched is formed between the sealing cover and the current-carrying copper busbar, so that gas tightness of the interrupter can be improved.

The invention relates to a disconnect switch (1) for an electrical circuit, in particular for disconnecting an electrical energy storage device from an electrical installation, comprising a busbar (3) via which a first power terminal (4) of the disconnect switch (1) is electrically connected to a second power terminal (5) of the disconnect switch (1), and a disconnecting element (7) for mechanically cutting the busbar (3). The disconnect switch (1) is characterized by an energy absorption element (9) for absorbing thermal energy generated as a result of the cutting, which has a shell (10) made of a polymer material and an energy absorption body (11) made of a mineral material arranged in the shell (10).

The present invention provides an electric circuit breaker device capable of suppressing an increase in power of a power source and easily cutting off an electric circuit while it is possible to cope with an increase in the number of parts to be cut (fuse elements). An electric circuit breaker device includes an accommodation portion, external connection terminals at both sides, a fuse element accommodated in the accommodation portion, and an arc-extinguishing material, wherein the electric circuit breaker device includes a power mechanism configured to apply a tensile force to an end portion of the fuse element to divide the fuse element, and an electrical connection maintaining structure maintaining an electrical connection between the fuse element and the external connection terminal until the fuse element is divided.

To provide a smart battery disconnect and protection architecture for airborne high-power modular multi-string battery pack.SOLUTION: The invention provides methods and systems for protection / disconnect of airborne high-power / high-energy high-voltage modular multi-string battery packs (such as battery packs for airborne electric propulsion systems). The methods and systems are based on a dissimilar / redundant distributed battery pack protection architecture and use a smart mid-point battery disconnect cooperating with centralized battery management system. The resulting battery disconnect / protection system is configured to detect bus faults, load faults and string faults and then take appropriate action to isolate the detected fault. For example, in response to a short circuit in one battery string, the faulty battery string may be disconnected from the positive and negative busbars while the remaining battery strings continue to provide power.SELECTED DRAWING: Figure 1

An electric circuit breaker device includes a housing serving as an outer shell member and including an accommodation space extending in one direction, an igniter, a projectile configured to be projected from an end side of the accommodation space by energy received from the igniter and move along an extending direction of the accommodation space, and a conductor piece forming part of an electric circuit, the conductor piece being disposed crossing the accommodation space, wherein in the housing, a region defined by an inner wall of the housing holding the conductor piece in the accommodation space serves as a holding region, and the projectile includes: a rod portion extending along the extending direction of the accommodation space and inserted into the holding region; and an elastic portion being a member having elasticity and provided on an outer periphery of the rod portion facing the inner wall of the holding region after the projectile is projected, the elastic portion coming into contact with the inner wall of the holding region when the projectile is projected, and being compressed between the inner wall of the holding region and the rod portion. The lowering of an insulating resistance value is suppressed by preventing the projectile from returning to the igniter side after operation.

This protection device (300) comprises at least two conduction paths (303) and cut-off means (310) arranged on each of the conduction paths. The device comprises a microcontroller (320), which is configured to measure a differential current in the conduction paths with detection means (312), to evaluate a differential fault and to send a trip signal to the cut-off means when a differential fault of the first type is detected. The protection device (300) also includes a test loop (360), which is different from the detection means. The microcontroller (320) is configured to inject, into the conduction paths by means of the test loop, a first test signal representative of the electrical fault of the first type and, together with detection means, to measure the first test signal thus injected into the conduction paths.

The present invention relates to a fuse device for high-voltage applications, comprising a housing (10), an actuation chamber (12) and an arc-extinguishing chamber (14) formed within the housing (10), a busbar (16) extending through the housing (10) and between the actuation chamber (12) and the arc-extinguishing chamber (14), and a separation element (34) that moves out of the actuation chamber (12) and against the busbar (16) by means of an actuator (32), wherein a section (42) of the busbar can be moved to the arc-extinguishing chamber (14). In this invention, the busbar (16) is cut at a first predetermined break point (74); and a guide element (48) extends into the arc-extinguishing chamber (14) and has two opposing sidewalls (52, 54) that extend to a support surface (102) that defines the arc-extinguishing chamber (14) along the direction of movement of the separating element (34), and when viewed along the direction of movement of the separating element (34), the two sidewalls extend past opposing longitudinal sides (55) of the busbar segment (42) to be separated. The object of the invention is to extinguish the arc more quickly by squeezing the arc in a gapless manner in the triggered state. This is achieved by providing stiffeners (111) on the two sidewalls (52, 54) that extend along the direction of movement of the separating element (34) and at least along the length of the sidewalls (52, 54) to a support surface (102) that defines an arc-extinguishing chamber (14) along the direction of movement of the separating element (34) and abuts against the support surface when the separating element (34) moves into the arc-extinguishing chamber (14).

Protective device, protective assembly, electrical panel, and associated test method. This protective device (300) includes at least two conduction paths (303) and switching means (310) arranged on each of the conduction paths. The device includes a microcontroller (320), which is configured to measure a differential current in the conduction paths with detection means (312), to evaluate a differential fault, and to send a trip signal to the switching means upon detection of a first-type differential fault. The protective device (300) also includes a test loop (360), which is separate from the detection means.The microcontroller (320) is configured to inject, via the test loop, a first test signal representative of a first type electrical fault into the conduction paths and, simultaneously, to measure, using detection means, the first test signal thus injected into the conduction paths. See Figure 5 for abbreviations.

To provide a cutout gear capable of improving the extinguishing of the arc.SOLUTION: A cutout gear 1 includes: a conductor 2, a housing 9, and a cooling body 3. The conductor 2 is connected to an external electric circuit. The housing 9 has an interior space 90. The interior space 90 accommodates at least a part of the conductor 2. The cooling body 3 is arranged in the interior space 90. The cooling body 3 cools the arc generated in the interior space 90. The cooling body 3 has a porous body 30 consisting of at least one of metal oxides or inorganic oxides.SELECTED DRAWING: Figure 1

To provide an electric circuit breaker device capable of suppressing occurrence of gas leakage after actuation.SOLUTION: An electric circuit breaker device comprises: a housing that includes an accommodation space extending in one direction therein as an outer shell member; an igniter provided on the housing; a projectile arranged in the housing and that moves in an extending direction of the accommodation space by being released from one end side of the accommodation space by an energy received from the igniter; and a conductor piece held by the housing to form a part of an electric circuit and that has a to-be-cut-off part that is cut off by the movement of the projectile between a first connection end part provided at one end and a second connection end part provided at the other end, the to-be-cut-off part being arranged so as to go across the accommodation space. Of the accommodation space, a region demarcated by an inner wall of the housing holding the conductor piece is defined as a holding region. The housing has a housing main body that includes the holding region therein. The main body has: an inside molding part arranged so as to face the holding region; and an outside molding part molded separately from the inside molding part and arranged at an outer peripheral side of the inside molding part.SELECTED DRAWING: Figure 1

An electrical device for protecting an electrical installation intended to be placed between a power supply and an electrical load, the device including: a power contactor comprising two contacts that are intended to be connected to the power supply; at least two Hall sensors configured to measure the electric currents at the input of the power contactor; an electrical precharging circuit intended to be placed between the power supply and the power contactor and connected to the electrical load; a relay configured to connect or disconnect the electrical precharging circuit; a pyrotechnic electrical cutoff device intended to be connected to the power supply and to the power contactor, and a controller configured to receive the measurements from the Hall sensors and to open or close the power contactor and the relay.

The present disclosure relates to a battery system and an electric vehicle including the battery system. The battery system includes a high-voltage battery having a plurality of interconnected battery cells for providing a high-voltage output at battery system terminals of the battery system, and a battery disconnect element for disconnecting the high-voltage battery from at least one of the battery system terminals in the event of a fault or a crash, wherein the battery disconnect element is powered by the high-voltage battery.

The invention relates to a contactor device and a high-voltage power supply system comprising the same. The contactor arrangement (100) comprises a contact arrangement comprising at least one movable bus bar (106, 108) and at least one fixed bus bar (102, 104), where the at least one movable bus bar (106, 108) has a first contact area and the at least one fixed bus bar (102, 104) has a second contact area, and at least one actuation element (118), where the at least one movable bus bar (106, 108) has a second contact area and the at least one fixed bus bar (102, 104) has a third contact area. The actuating element is configured to change at least a state of the contactor device (100) from an open state to a closed state, in which the first contact region is electrically isolated from the second contact region, and in which the first contact region is conductively coupled to the second contact region, and from the closed state to the open state. The contact device also includes a first current sensing element (152) having a first predetermined resistance that is integrally formed with one of the bus bars (102, 104, 106, 108) included in the contact device.

The invention relates to a power line cutting device for cutting a power line, comprising a cutting element for cutting the power line and a housing in which the cutting element is arranged so as to be displaceable along a first axis and which comprises a first housing part and a second housing part. The first housing part and / or the second housing part has / has a receptacle extending along a second axis, which is provided for receiving the power line to be cut. Viewed along the second axis, the first housing part has a contact surface on either side of the receptacle, and the second housing part has a contact surface on either side of the receptacle. At least one contact surface of the first housing part and at least one contact surface of the second housing part have a non-planar contact surface section.The contact surfaces of the first housing part are shaped complementarily to the contact surfaces of the second housing part, so that the contact surfaces of the first housing part rest against the corresponding contact surfaces of the second housing part.

This breaker device includes: a casing; an igniter disposed in the casing; a conductor including a separating portion disposed below the igniter; and a pusher located between the separating portion and the igniter and configured to move together with the separating portion from a first position to a second position located below the first position. The casing includes: a first casing made of a metal, including a first fixing portion, and configured to house the igniter and the pusher located at the first position; and a second casing made of a metal, including a second fixing portion, and configured to house the pusher that has moved to the second position and the separating portion that has moved downward together with the pusher. The first fixing portion and the second fixing portion overlap each other, come into contact with each other, and are fixed to each other.

A current breaker for automotive safety systems has a separating punch and a conductor formed with at least one localized decrease in thickness constituting a weakened separating point severable by the separating punch. This current breaker is made by overmolding the conductor in a plastic-injection mold with an encapsulation by a method having a first step of forming the separating point of the conductor in the plastic-injection mold before or during overmolding and a second step of forming with the mold above and below the conductor in the encapsulation a passage fully exposing the separating point and dimensioned to hold the separating punch.

To provide a current interruption circuit and a current interruption system capable of reducing erroneous disconnection of a fuse.SOLUTION: When the resistor Rp is energized, the ignition type fuse is cut. IPD231 and 232 are provided on both sides of the resistor Rp, and when both are turned on, the resistor Rp is energized. The current sensor 241,242 detects a current of a current path in which the ignition-type fuse is provided. The overcurrent determination circuit 251 determines an overcurrent based on the output of the current sensor 241. The second overcurrent determining circuit 252 determines an overcurrent based on the output of the current sensor 242. IPD231 is turned on based on the determination result of the overcurrent determination circuit 251. IPD232 is turned on based on the determination result of the overcurrent determination circuit 252.SELECTED DRAWING: Figure 1

To provide an electric circuit breaker device that reduces deformation of a conductor piece when a projectile cuts the conductor piece. There is provided an electric circuit breaker device including a housing serving as an outer shell member, the housing configured to enclose an accommodation space extending in one direction, an igniter provided in the housing, a projectile disposed in the housing, the projectile being configured to be projected from one end side of the accommodation space by energy received from the igniter, the projectile being configured to move along an extending direction of the accommodation space, and a conductor piece held by the housing, the conductor piece forming a part of an electric circuit, the conductor piece including a cutoff portion between a first connection end portion as one end portion and a second connection end portion as the other end portion, the cutoff portion being configured to be cut off by movement of the projectile, the cutoff portion being disposed across the accommodation space. The conductor piece includes a deformation suppressing portion configured to suppress deformation when the cutoff portion is cut off by the projectile.

An electrical circuit breaker device is provided, comprising: a housing with an internal receiving chamber, the receiving chamber extending in one direction and having a projectile receiving section at one end and an arc quenching section at the other end; a detonator provided on the housing; a projectile received in the projectile receiving section and configured such that it is ejected from the projectile receiving section towards the side of the arc quenching section along the receiving chamber by the energy received from the detonator;and a conductor section provided on the housing and forming part of an electrical circuit, the conductor section having a cut-off section on a portion of the conductor section which is to be cut off by the projectile, the cut-off section being arranged transversely between the projectile receiving section and the arc-quenching section. The projectile includes at a tip end a cut-off surface configured to cut off the cut-off section at the time of detonation of the fuse, and at least one magnet is arranged on the arc-quenching section of the receiving chamber.

The disclosure relates to a circuit breaker assembly, comprising: a first contact terminal and a second contact terminal; a busbar configured to enable a current flow between the first contact terminal and the second contact terminal; and an auxiliary current path electrically connected in parallel to the busbar between the first contact terminal and the second contact terminal, the auxiliary current path comprising a fuse, wherein a nominal current value of the fuse is smaller than an operating current value of the busbar; wherein the busbar comprises at least one pyrotechnic section arranged between the first contact terminal and the second contact terminal in parallel to the auxiliary current path, wherein an activation of the at least one pyrotechnic section responsive to a fault current flow between the first contact terminal and the second contact terminal interrupts the busbar, thereby commutating the fault current to the auxiliary current path for an extinction of the fault current by the fuse.

The aim of the invention is to produce a conductor (14) for a circuit breaker (11), said conductor having a printed circuit board (14c) to be separated between two conductor ends and additionally having a conductor encapsulation (15) that has a cavity (20) in which the printed circuit board (14c) is located. This is achieved in that a plastic melt is injected, via at least one gate (21), into an injection mold, in which the conductor (14) is located. According to the invention, the gating process (21) is carried out from out of the cavity (20), through which the conductor passes, wherein the plastic melt flows from the gate (21) to the actual conductor encapsulation (15) through a runner (22; 24a-24d; 26a, 26b). In the process, the gate (21) can remain in the completed circuit breaker (11).

The invention discloses a breaker, power distribution equipment and a vehicle, and relates to the technical field of breakers, and the breaker comprises a pedestal which is provided with an arc extinguishing cavity; the sealing cover is arranged at the opening of the arc extinguishing cavity, and a first channel penetrating through the sealing cover is arranged in the sealing cover; the through-flow copper bar is parallel to the sealing cover, the through-flow copper bar penetrates through the sealing cover in the direction perpendicular to the thickness of the sealing cover, the through-flow copper bar comprises a thinned part, and the thickness of the thinned part is smaller than that of other parts of the through-flow copper bar; the piston is at least partially contained in the first channel, the projection of the piston in the thickness direction of the sealing cover at least partially coincides with the thinned part, the side wall of the arc extinguishing cavity surrounds the piston, an annular air channel is formed between the side wall of the arc extinguishing cavity and the piston, and the annular air channel surrounds the periphery of the piston in the circumferential direction of the piston; and the first flame extinguishing structure comprises an internal channel, the internal channel is used for communicating the annular air channel with the external space of the first flame extinguishing structure, and the first flame extinguishing structure is located in the arc extinguishing cavity. The breaker provided by the invention can improve the arc extinguishing efficiency.