431results about "Heating/cooling contact switches" patented technology

A protective element includes: a fuse element including a first end portion and a second end portion; first and second insulating members each having an opening or a separation part, the first and second insulating members being disposed in a state proximal to or in contact with the fuse element; a shielding member movable in a moving direction that allows the shielding member to insert into the opening or the separation part so as to divide the fuse element; a locking member that suppresses movement of the shielding member; a pressing member that press the shielding member; and a heat-generating body configured to heat the locking member or a fixing member of the locking member. The fuse element further includes a cutoff portion for cutting off a current path between the first end portion and the second end portion.

A protective element includes: a first fuse element part including a first fuse element; a second fuse element part including a second fuse element; an insulating enclosure having a fusing space in which the first fuse element is positioned and a cutting space in which the second fuse element is positioned; and a slider disposed to be movable within the fusing space toward a second fuse element side. The fusing space is divided into a first space and a second space which interpose the slider, the first fuse element being positioned in the first space, and a second space being connected to the cutting space. When a fusion current flows to the first fuse element, and as pressure in the first space rises, the slider is configured to move toward a second fuse element side such that a cutting part of the slider cuts the second fuse element.

The invention relates to the technical field of thermal fuses, in particular to a thermal fuse, a carrier tape, an onboard, a protection device and a manufacturing method. The temperature fuse comprises a first electrode, a second electrode, a temperature sensing alloy and a shell. An accommodating space is formed in the shell; the first electrode and the second electrode are respectively provided with a first end part and a second end part which are opposite; the first end part of the first electrode and the first end part of the second electrode are oppositely arranged in the accommodating space at an interval; the temperature sensing alloy is positioned in the accommodating space and is electrically contacted with the first end part of the first electrode and the first end part of the second electrode respectively; through holes are formed in the positions, located at the first end of the first electrode and the first end of the second electrode, of the shell respectively. Through the arrangement, the product size is reduced while the welding quality is improved, and the stability and the performance of the product are effectively improved.

To provide a protection element which has a reflow-resistant property, can maintain a low electric resistance as well after a reflow, and has a lead-free fuse element formed of a single alloy.SOLUTION: The fuse element is formed of a single alloy material as an Sn-Ag-Cu three-dimensional alloy. A flux for assisting a welding operation is applied on the fuse element. The silver content is 20-30 mass%, the copper content is 2-10 mass%, and the balance is Sn.SELECTED DRAWING: Figure 1

Protective equipment for control panels and control panel monitoring system The invention relates to a protective device for control panels comprising a support (10), further comprising at least one fuse base (1a) for fixing a fuse (1b), at least one thermal fuse (7), at least one supply / drain contact (3), at least one disconnect contact (4), at least one input / output contact (2a) designed to connect conductors for bidirectional flow of electric current, the fuse base (10) being removably connected, the thermal fuse (7) being arranged to perform the function of activating a disconnect and / or extinguishing function, and / or further comprising at least one network module for monitoring the protective device, and / or at least one mounting block for a fire extinguishing agent tank, the fire extinguishing agent tank being removably connected to the support (10).Figure to be published with the abbreviation: Figure 1a.

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.

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).

This disclosure provides a circuit breaker and a method for operating the circuit breaker. The circuit breaker includes a first circuit breaker terminal (11) and a second circuit breaker terminal (12), a bimetallic strip (13), a first conductive wire (14), a switch (40) having a first contact (41) and a second contact (42), a triggering device (44) mechanically coupling the bimetallic strip (13) to the switch (40), a magnet (17), and a detection device (20) including a magnetic field sensor (21) configured to detect the magnetic field of the magnet (17). The first conductive wire (14) is electrically coupled to the first circuit breaker terminal (11) and the first contact (41) and is wound around the bimetallic strip (13). The magnet (17) is connected to at least one of the bimetallic strip (13), the triggering device (44), and the switch (40).

A thermostat (100, 200, 300) is disclosed having input terminals (110, 152) and an output terminal (112). A load switch (114) for selectively connecting the input terminals to the output terminal is provided and comprises an electromagnetic relay configured to interrupt electrical connection between the input and output terminal when a coil (115) of the load switch is de-energized. The thermostat includes a temperature sensor (120), and a controller circuit (130) arranged to derive a temperature from the sensor. The controller circuit (130) is configured to selectively energize the coil (115) of the load switch (114) based on the temperature value to connect the input and output terminal. A thermal fuse (140) is provided and arranged to irreversibly de-energize the load switch coil (114) when the thermal fuse (140) is subjected to a temperature above a threshold to disconnect the input and output terminal.

An optical switch and system including the same are provided. The optical switch includes (i) a fastening portion configured to releasably attach directly or indirectly to a fuse casing, (ii) a cable connecting portion including a first fiber optic cable connection port, a second fiber optic cable connection port, and an optical through-channel extending from the first fiber optic cable connection port and the second fiber optic connection port; and (iii) an actuator configured to move between a first position associated with a non-blown fuse and a second position associated with a blown fuse. The actuator includes an optical blocking portion that is moved into or within the optical through-channel of the cable connecting portion when the actuator is in the second position.

A fuse (100) includes a housing (102). A bus bar (108) extends through the housing (102). An arc interrupter (110) positioned inside the housing (102). A biasing element (112) is compressed between the housing (102) and the arc interrupter (110) to bias the arc interrupter (110) toward the bus bar (108) to separate two portions of the bus bar (108) during circuit interruption to mitigate arcing from one portion of the bus bar to the other portion of the bus bar. The bus bar (108) includes a pocket (114) defined therein wherein the bus bar (108) is of a first material, and wherein a second material is seated within the pocket (114). In another aspect, a fuse (100) includes a fuse housing (102) and a bus bar (108) extending through the housing (102). The bus bar (108) includes a pocket (114) defined therein. The bus bar (108) is of a first material, wherein a second material is seated within the pocket (114).

An electronic substrate device according to an embodiment of the present invention includes: an insulating material having a first outer surface and a second outer surface, the second outer surface facing in a direction different from a vertical upper direction; a first electronic component disposed on the first outer surface and generating heat by being energized; a second electronic component disposed on the second outer surface; a braze; a terminal provided on the first outer surface and joined to the first electronic component; a pad provided on the second outer surface and joined to the second electronic component by the braze; a via that penetrates the insulating material; first wiring that connects the terminal and the via; and second wiring that connects the pad and the via. The electronic substrate device comprises a pattern configured so that the second electronic component is separated from the pad due to the weight of the second electronic component in response to melting of the braze, whereby energization to the first electronic component is stopped.

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.

Embodiments disclosed herein include a high-frequency emission module. In an embodiment, the high-frequency emission module comprises a solid state high-frequency power source, an applicator for propagating high-frequency electromagnetic radiation from the power source, and a thermal break coupled between the power source and the applicator. In an embodiment, the thermal break comprises a substrate, a trace on the substrate, and a ground plane.

The present disclosure enables rapid and reliable fusing even if the cross-sectional area of a fuse element is increased by appropriately coating a flux. The present invention is provided with: an insulating substrate (2); a heating element (4); an insulating layer (5) covering the heating element (4); an intermediate electrode (6); a fuse element (3); a cover member (30); and a flux (7) in which a protrusion (31) is provided on the lid member (30) so as to face the intermediate electrode (6), the intermediate electrode (6) having a length greater than the width of the fuse element (3) in a direction orthogonal to the energization direction of the fuse element (3), at least one of the ends (6a, 6b) of the intermediate electrode (6) protruding from the fuse element (3), and the other end of the intermediate electrode (6) protruding from the fuse element (3). The protrusion (31) is provided at a position facing the position of the intermediate electrode (6) on which the fuse element (3) is mounted, and at a position facing the ends (6a, 6b) of the intermediate electrode (6) on which the fuse element (3) is not mounted.

This thermal fuse for high voltage direct currents comprises a small contact point forming member disposed between a contact part of a fixed terminal and a contact part of a movable terminal and having a plurality of small contact points formed on a contact portion of a contact part facing a contact part of a terminal requiring contact point formation, wherein the small contact point forming member is configured to, when the movable terminal enters in the direction of the fixed terminal, make divided contact with the contact portion of the facing terminal through the small contact points formed at the contact portion of the contact part, and conduct currents between the contact part of the fixed terminal and the contact part of the movable terminal through the small contact points in divided contact, and to, when the movable terminal moves in the opposite direction of the fixed terminal, make the contact part of the fixed terminal and the contact part of the movable terminal disconnected through individual disconnection of the small contact points in contact with the contact part.

Temperature-dependent switch (10) comprising a first and a second stationary contact (48, 50) and at least one temperature-dependent switching mechanism (14) with a movable contact element (40), wherein the at least one switching mechanism (14) in its first switching position presses the contact element (40) against the first contact (48) and thereby establishes an electrically conductive connection between the two contacts (48, 50) via the contact element (40) and in its second switching position holds the contact element (40) at a distance from the first contact (48), wherein the at least one temperature-dependent switching mechanism (14) comprises a first temperature-dependent snap element (30),the switch (10) snaps from its geometric low-temperature configuration to its geometric high-temperature configuration when a first switching temperature is exceeded and snaps back from its geometric high-temperature configuration to its geometric low-temperature configuration when a first re-switching temperature is subsequently undershot, wherein the switch (10) further comprises a second temperature-dependent snap element (44) which snaps from its geometric low-temperature configuration to its geometric high-temperature configuration when a second switching temperature is exceeded and snaps back from its geometric high-temperature configuration to its geometric low-temperature configuration when a second re-switching temperature is subsequently undershot.and wherein a snapping of the first snapping element (30) from its low-temperature geometric configuration to its high-temperature geometric configuration and / or a snapping of the second snapping element (44) from its low-temperature geometric configuration to its high-temperature geometric configuration brings the at least one switching mechanism (14) from its first switching position to its second switching position, wherein the second reset temperature is lower than the first reset temperature and the second snapping element (44) is configured to keep the contact element (40) spaced apart from the first contact (48) even when the switch (10) heats up above the first and second switching temperatures and subsequently cools down to a temperature between the first and second reset temperatures, and wherein the second switching temperature is equal to or higher than the first switching temperature.

A surge protection device (200), SPD, for protecting electrical circuits from transient overvoltage events is disclosed. The surge protection device includes an SPD base (220) comprising a set of terminals and a set of slots electrically coupled to the terminals, and an SPD module (230)comprising a housing, a set of pins configured to engage the slots, and a printed circuit board (PCB) bus contained within the housing. The PCB bus includes a first suppression circuit path and a second suppression circuit path. A suppression component is coupled to the first suppression circuit path. A switch is configured to automatically reconfigure the SPD from the first suppression circuit path to the second suppression circuit path upon failure of the suppression component. The SPD module may include a user-operable switch or jumper configured to select between a fail-open mode and a fail-closed mode. Redundant surge protection modules may be connected through a dual SPD base.

To provide a protective element capable of improving insulation properties after melting of a fuse element, and a battery pack using the same.SOLUTION: A protective element 1 comprises: an insulation substrate 2; a first electrode 11 and a second electrode 12; an intermediate electrode 13 disposed between the first electrode 11 and the second electrode 12; a fuse element 3 which is disposed on surfaces of the first electrode 11, the second electrode 12 and the intermediate electrode 13 and electrically connects the first electrode 11 with the second electrode 12 and the second electrode 12 with the intermediate electrode 13; and a deposition prevention section 5 which is provided between the first electrode 11 and the intermediate electrode 13 and / or between the second electrode 12 and the intermediate electrode 13 and suppresses deposition of molten scattered materials of the fuse element 3.SELECTED DRAWING: Figure 1

A protective element includes: an insulating substrate; a heating element provided on a front surface side of the insulating substrate; an insulating layer covering the heating element; an intermediate electrode provided on the insulating layer; a fuse element mounted on the intermediate electrode; a cap member covering the front surface of the insulating substrate; and a flux. The cap member includes at least one protrusion that retains the flux and is provided facing the intermediate electrode. At least one end portion of the intermediate electrode extends beyond the fuse element. The at least one protrusion is provided at a position facing the fuse element which is mounted on the intermediate electrode and at a position facing the at least one end portion of the intermediate electrode at which the fuse element is not mounted, and retains the flux on the fuse element and at the end portion.

The document describes a device for disconnecting an electrical connection to a battery cell (1) during venting, in which a cell pole (3) on the gas vent valve side is connected to an electrical contact point (5) via a connecting conductor (2) that forms a fuse with a contact point (4). In order to provide such a device that requires fewer components and has a compact structure, enables reliable electrical and thermal load protection of adjacent cells of the battery cell being vented, and prevents the spread of thermal runaway, a spacer (6) is provided between the contact point (4) and the contact point (5) to electrically insulate the contact point (4) from the contact point (5) and hold the cell pole (3) during venting.

To provide a protection element in which a fusible conductor is not fused even through a reflow process, and the fusible conductor can be fused quickly when abnormal.SOLUTION: A protection element 1 includes an insulating substrate 2, a heating element 5, a first electrode 3 and a second electrode 4 laminated on the insulating substrate 2, a heating element extraction electrode 6 provided on a current path between the first and second electrodes 3 and 4 and electrically connected to the heating element 5, and a fusible conductor 7 mounted on the first electrode 3, the second electrode 4, and the heating element extraction electrode 6 and fused by a self-heating caused by heating or overcurrent of the heating element 5 to block the current path. The fusible conductor 7 is formed of a laminated body 13 including at least a low melting point metal layer 11 having a liquidus temperature of less than 260°C and a high melting point metal layer 10 having a liquidus temperature of more than 400°C, and the laminated body 13 has a material configuration in which a liquidus temperature of an alloy composition when melted as a single alloy is 300°C or more and 400°C or less.SELECTED DRAWING: Figure 1

This invention relates to a thermo activator (1) that enables any unit, equipment, mechanism, fuse, module, device etc. and / or systems to which it is connected to be operated, shut down, controlled, regulated, activated and / or de-activated as desired (stand alone, single, multiple) autonomously and automatically or dependently when the ambient temperature reaches a desired (predetermined) level.

To achieve a high functional reliability and a long service life with an inexpensive and simple configuration, in a temperature-dependent switch.SOLUTION: A temperature-dependent switch (10) includes a first external terminal (14), a second external terminal (16), and a temperature-dependent switching mechanism (12). The switching mechanism (12) includes a temperature-dependent switching element (28). The switching element switches the switching mechanism (12) between a closed position and an open position. The switching mechanism (12) establishes an electrically conductive connection between the first external terminal (14) and the second external terminal (16) in the closed position, and disconnects the electrically conductive connection in the open position. The switching mechanism (12) also includes a spring element (30) that is permanently electrically and mechanically connected in series to the switching element (28). In addition, the switching mechanism (12) includes a connecting component (32) that is arranged between the spring element (30) and the switching element (28) and is attached to the spring element (30) and the switching element (28).SELECTED DRAWING: Figure 1

To improve an insulating property after fusing of a fuse element.SOLUTION: This is a protection element including an insulating substrate 2, a heating element 5, a first electrode 3 and a second electrode 4, a heating element extraction electrode 6, a first support electrode 7 provided between the first electrode 3 and the heating element extraction electrode 6, a second support electrode 8 provided between the second electrode 4 and the heating element extraction electrode 6, a fusible conductor 10 for blocking heat which is connected across the first support electrode 7, the heating element extraction electrode 6, and the second support electrode 8 and is melted by heat generated by the heating element 5, and a fusible conductor 11 for blocking current, which is connected across the first support electrode 7 and the first electrode 3 and between the second support electrode 8 and the second electrode 4 and is fused by self-heating caused by application of an overcurrent exceeding a rating. The fusible conductor 10 and the fusible conductor 11 are connected in series, and a resistance value of the fusible conductor 11 is higher than the resistance value of the fusible conductor 10.SELECTED DRAWING: Figure 1

An alarm system for a surge protector is proposed, which includes: a plurality of varistors; a plurality of fuse bars, each varistor being configured to be connected to a corresponding fuse bar via a solder joint; a plurality of pressing bar assemblies, and the fuse bar abuts against the pressing bar assembly when the corresponding solder joint is effective; a first spring group; a pressing plate having a plurality of through holes; a plurality of supporting pieces, each supporting piece passing through a corresponding through hole; a second spring group; a third spring; a microswitch; when the solder joint of one of the varistors fails, the corresponding fuse bar is detached from the pressing bar assembly, so that the pressing bar assembly moves in a first direction under an action of a corresponding first spring, so that the pressing bar assembly is out of abutment with the corresponding supporting piece, so that a corresponding second spring is released from the compressed state, and the supporting piece drives the pressing plate to move towards the pressing bar assembly to release a button.

A temperature-sensitive connector is disclosed. The connector can include a connector body and a first terminal to connect to a terminal of an electronic component being thermally controlled and a second terminal to connect to a terminal of an electronic thermal control device. The connector can include at least one conductor mounted in the connector body to convey a signal from the electronic component being thermally controlled to the electronic thermal control device. A thermal switching and sensing device can be integrated into the connector body to electrically connect to the first terminal and the second terminal. The integrated thermal switching and sensing device can include a thermally activated switch element connected in parallel with a thermal sensor.