35 results about "Fusible link" patented technology

The invention relates to a surge protection device, and belongs to the technical field of surge protection. The surge protection device comprises an input piece, an output piece and a contact piece, the input piece and the output piece are separated through the piezoresistor, the contact piece is movably arranged on the input piece, and a hot melting piece is arranged on the input piece; the hot melting piece limits the contact piece to the initial position and enables the input piece and the output piece to be in an open circuit, and after the hot melting piece is melted, the contact piece is reset to the working position, and the input piece and the output piece are electrically connected through the contact piece. According to the surge protection device provided by the invention, the structure for triggering the short circuit of the input piece and the output piece is a mechanical structure, so that the stability of the short circuit between the input piece and the output piece can be ensured no matter how the installation position of the surge protection device is. In addition, the internal resistance of the product is low, the product can still bear large current for a long time after the piezoresistor is short-circuited, and the surge protection effect can be achieved on rear-end equipment.

A fusible link element (10; 15; 25; 35) comprising a metal composite material in which a first fusible metal (11; 21; 31) and a second fusible metal (12; 22; 32) are layered on top of each other, wherein the second fusible metal (12; 22; 32) has a lower melting temperature than the first fusible metal (11; 21; 31), characterized by the fact that the first fusible metal (11; 21; 31) is a Sn-Ag alloy and the Sn-Ag alloy contains at least 20 wt% and at most 30 wt% Ag, and the second fusible metal (12; 22; 32) is a Sn-Bi alloy and the Sn-Bi alloy contains at least 40 wt% and at most 70 wt% Bi, wherein at a common working temperature at least part of a component of the second fusible metal (12; 22; 32) is melted and part of a component of the first fusible metal (11; 21; 31) is melted, and where, at the common working temperature, the difference between a liquidus temperature and a solidus temperature of the first fusible metal (11; 21; 31) and the second fusible metal (12; 22; 32) is reduced by a shift in the equilibrium of Sn between the first fusible metal (11; 21; 31) and the second fusible metal (12; 22; 32) and by a mutual diffusion of Ag and Bi between the first fusible metal (11; 21; 31) and the second fusible metal (12; 22; 32).

A safety cabinet includes an enclosure and at least one door to selectively seal the enclosure. The safety cabinet can be used to store, for example, flammable liquids, flammable waste, corrosive agents, pesticides, or combustible waste. The safety cabinet includes a heat-actuated damper including a body, a valve plate, and a pivot assembly. The valve plate is disposed within a passageway of the body such that the valve plate is movable between an open position and a closed position. The pivot assembly includes a biasing system adapted to bias the valve plate to the closed position and a fusible link interconnected between the body and the biasing system to limit movement of the valve plate from the open position to the closed position. The fusible link is configured to melt at a predetermined temperature, thereby allowing the biasing system to move the valve plate to the closed position.

To provide a connection structure of a terminal to a fusible link unit capable of reducing the weight.SOLUTION: A connection structure 10 of a terminal to a fusible link unit includes a fusible link unit 20 having a housing 30, a bus bar 40, and a stud bolt 60. The connection structure 10 of the terminal to the fusible link unit includes the terminal 72 having the connection terminal portion 721 in which the insertion hole 7211 is formed, and the nut 80 that fastens the terminal 72 in a state of being electrically connected to the bus bar 40. Further, an engagement recess 7212,7213 is formed in the connection terminal portion 721. In a state where the stud bolt 60 is inserted into the insertion hole 7211, the engagement protrusion 333,3321 formed on the housing 30 is engaged with the engagement recess 7212,7213.SELECTED DRAWING: Figure 10

A fusible link unit includes a conductor having a fuse function, and a housing that accommodates the conductor. The conductor includes an input terminal that inputs electric power from a power source, an output terminal that outputs the electric power, a fusing portion disposed on an energization path from the input terminal to the output terminal, and a relief terminal portion capable of connecting a relief tool for supplying the electric power to the power source from outside. The input terminal and the relief terminal portion are provided on a continuous exposed piece of the conductor exposed from the housing.

The invention relates to a fire protection device (2) for a vehicle (1), in particular a motor vehicle, comprising a storage device (3) in which an extinguishing agent can be stored, an outlet opening (6) through which at least a part of the extinguishing agent stored in the storage device (3) can be discharged from the fire protection device (2), whereby at least one component (7) of the vehicle (1) can be exposed to the extinguishing agent, and a release device (10) by means of which the discharge of the extinguishing agent from the fire protection device (2) via the outlet opening (6) can be triggered, wherein the release device (9) is designed as a fusible link (10).

The application provides an excitation fuse and an electronic circuit, which comprises a shell provided with a first cavity, a second cavity and at least one arc extinguishing cavity, a first conductive part arranged in the first cavity as a current input end, a second conductive part arranged in the second cavity as a current output end, a metal fuse provided with at least one fuse part, and an impact piece; two ends of the metal fuse are respectively inserted into the first cavity and the second cavity and connected with the first conductive part and the second conductive part; each arc extinguishing cavity comprises an arc extinguishing cavity and at least one exhaust slot penetrating the wall of the arc extinguishing cavity and communicating with the first cavity or the second cavity; the at least one fuse part is arranged in the at least one arc extinguishing cavity, and the two ends of the metal fuse are penetrated out of the at least one exhaust slot; the arc extinguishing cavity is filled with arc extinguishing medium wrapping the fuse part; when the current is greater than or equal to a preset value, the impact piece is driven to impact the metal fuse by an external excitation signal, so that the fuse part of the metal fuse is broken.

The application discloses a fuse programming unit, a programming circuit, a control circuit and an array, comprising two efuse units and a mode control tube; the first efuse unit comprises a first fuse, a first end of the first fuse constituting a first bit line of the fuse programming unit, a second end of the first fuse being connected with a drain end of a first MOS; a source end of the first MOS being connected with a ground, and a gate end of the first MOS constituting a first word line of the fuse programming unit; the second efuse unit comprises a second fuse, a first end of the second fuse constituting a second bit line of the fuse programming unit, a second end of the second fuse being connected with a drain end of a second MOS; a source end of the second MOS being connected with the ground, and a gate end of the second MOS constituting a second word line of the fuse programming unit; and the mode control tube, a drain end of the mode control tube being connected with the bit line of the first efuse unit, a source end of the mode control tube being connected with the bit line of the second efuse unit, and a gate end of the mode control tube constituting a correction signal of the fuse programming unit. The application improves the use flexibility of the fuse programming unit array, and realizes the redundancy correction function of each storage bit.

A conductor plate assembly for providing an electrical connection between a plurality of battery cells of a battery package for an electric vehicle is described. The conductor plate assembly includes a plurality of first conductor plates, at least one second conductor plate, a plurality of fusible links at the at least one second conductor plate configured to connect the at least one second conductor plate to multiple battery cells, and a plurality of non-fusible links at the plurality of first conductor plates configured to connect the plurality of first conductor plates to plural battery cells. Related apparatuses, systems, and methods are also described.

The invention discloses a lithium ion power battery system of an electric forklift. The lithium ion power battery system comprises a battery box body, a radiator, a water pump, a water storage tank, a connecting water pipe and a battery management system, a lithium ion battery monomer, a cooling aluminum plate, an aluminum plate connecting pipe and a heat-conducting flame-retardant filler are arranged in the battery box body. A cooling water path is arranged in the cooling aluminum plate, and water spraying holes are formed in the aluminum plate connecting pipe. The water injection nozzle is provided with a high-temperature fuse piece. A discharge port is formed in the bottom surface of the battery box body. When thermal runaway occurs in the single lithium ion battery, high-temperature gas and liquid generated by the single lithium ion battery are discharged downwards from the discharge port, meanwhile, the high-temperature fuse piece on the aluminum plate connecting pipe near the single lithium ion battery with thermal failure is molten, and cooling water is sprayed out from the water spraying holes and finally flows out from the discharge port of the battery box body. The cooling water has a cooling effect, and the heat-conducting flame-retardant filler has a flame-retardant effect, so that the harm caused by thermal failure of the lithium ion battery is inhibited, and the safety of the lithium ion power battery system and the electric forklift is improved.

The present invention provides a fuse in which a structure for attaching an external fuse can be easily modified, resulting in a reduction in height. A fuse 600 comprises a busbar 100 with an input terminal 110, an external terminal 120, a circuit unit 200, and a fusible link 113 located between the input terminal 110 and the external terminal 120, as well as a housing 500 that covers at least part of the busbar 100. The circuit unit 200 comprises a main body 210 and a separate body 220, which are opposite each other. The separate body 220 includes a connecting section 290 that is connected to the main body 210, and the separate body 220 allows the attachment of an external fuse 700 with a fusible link 730 and a connecting terminal 720.

A lithium battery storage device comprises a box body used for containing lithium batteries and further comprises a cover plate and a storage basket. The box body comprises an upper box body and a lower box body, and fire extinguishing reagents are contained at the bottoms of the upper box body and the lower box body; the cover plate is arranged on the lower box body, and the upper box body is arranged on the cover plate; hanging lugs are arranged below the cover plate; hanging pieces are arranged on the upper edge of the storage basket, the hanging pieces are connected with the hanging lugs through connecting pieces, and the storage basket is arranged in the lower box body in a suspended mode. According to the explosion-proof fire extinguishing box, the upper box body and the lower box body are both filled with fire extinguishing reagents, fire extinguishing can be carried out on lithium batteries in the storage baskets, double explosion-proof fire extinguishing is achieved, and the safety is high; the fusible piece can be replaced at any time after being burnt out, the whole box body can be used for a long time, and the later maintenance investment is small; the structure is simple, the explosion-proof and fire-extinguishing effects are good, the cost is low, and economic pressure cannot be caused to users; the single battery is stored, the continuous explosion probability is reduced, and the safety performance is improved.

The utility model relates to an efficient fireproof regulating valve for a coating operation air supply system, which comprises a hollow valve body and a blade array rotationally connected with the valve body, a plurality of air nozzles are symmetrically arranged at the top of the valve body, and the blade array is pivoted on two side walls of the valve body through a blade rotating shaft. The two ends of a blade rotating shaft are connected with a pull rod motor through a first connecting rod mechanism, the other side of the first connecting rod mechanism is connected with a backup fusible piece, and an infrared temperature sensor and a laser dust sensor are fixedly connected to the interior of the side, close to the air inlet, of the valve body. Dust is directionally removed, airflow distribution is optimized, sealing performance is enhanced, and dust accumulation is prevented; and through cooperative work of the pull rod motor and the memory alloy spring backup fusible piece, redundancy protection is provided, it is ensured that the fire behavior is cut off in time, and safety and reliability are remarkably improved.

This utility model discloses a voltage sampling interface protection device for a doubly-fed induction generator (DFIG) converter in a wind turbine generator set, relating to the field of wind power equipment technology. It includes a fusible link fuse, a DC bus voltage sampling interface, a capacitor voltage sampling interface, a stator voltage sampling interface, and cables. It also includes a DIN rail bracket. The fusible link fuse is fixedly installed in the external terminal box of the DFIG converter control box via the DIN rail bracket. Three sets of fusible link fuses are connected in series on the voltage divider circuit side at the front end of the DC bus voltage sampling interface, the capacitor voltage sampling interface, and the stator voltage sampling interface, respectively. A protective component is installed at the cable through-hole. This device features an optimized structure, with the addition of fusible link fuses to enhance the protection characteristics of the converter grid-side voltage sampling interface, quickly cutting off short-circuit current and preventing fault propagation. The cable through-hole uses a special protective sleeve to prevent cable damage due to vibration or external force. The modular design of the fuse via the DIN rail and bracket simplifies the fuse replacement process and facilitates maintenance.

An apparatus is provided for obtaining fluid samples with the apparatus having a tubular body with a top and a bottom. A spring operated plunger shaft extends axially from the top to the bottom of the tubular body. A sample volume cap is attached to an end of the spring operated plunger shaft. A plunger is attached to the spring operated plunger shaft. A fusible link is used to maintain the spring operated plunger shaft in a first position. Upon activation of the fusible link, axial motion of the spring operated plunger shaft draws fluid into the tubular body trapping the fluid between the plunger and the sample volume cap inside the tubular body.

An electronic device, e.g. a trimmable resistor, includes a plurality of fused resistors, each fused resistor including one or more doped resistive regions formed in a semiconductor substrate. The doped resistive regions may be thermistors. Each fused resistor further includes a corresponding one of a plurality of fusible links. A first terminal of each of the fused resistors is connected to a first terminal of the corresponding fusible link. First and second interconnection buses are located over the substrate, with the first interconnection bus connecting to a second terminal of each of the fused resistors, and the second interconnection bus connecting to a second terminal of each of the fusible links. The plurality of fused resistors have resistance values that form an exponential progression.

The utility model relates to K type fuse wire technical field, concretely is a kind of K type fuse wire, the utility model includes fuse, recess ring one and recess ring two are set up in the side wall of fuse, the depth of recess ring one is greater than the depth of recess ring two, the length of recess ring one is equal to the length of recess ring two, the fuse includes matrix layer, the material of matrix layer is silver copper alloy, matrix layer inside evenly distributed has dispersion layer, the material of dispersion layer is nano alumina particle, matrix layer outside is coated with surface coating, the material of surface coating is low melting point metal tin;Through the matrix layer of silver copper alloy guarantee its high efficient conductivity, the dispersion layer of nano alumina particle promotes the current-carrying capacity of fuse, low melting point metal tin shortens fusing response time, changes the connection position of fuse, current passes through recess ring one or recess ring two, the depth of two is different, and the current-carrying capacity is different, thereby adapt to high current or low current, improve the accurate fusing capacity of fuse wire.

The application discloses a fuse programming unit, a programming circuit, a control circuit and an array, comprising two efuse units and a mode control tube; the first efuse unit comprises a first fuse one end forming a first line end of the fuse programming unit and a second end connected with a drain end of a first MOS; the first MOS has a source end connected with the ground and a gate end forming a first word line of the fuse programming unit; the second efuse unit comprises a second fuse first end forming a second line end of the fuse programming unit and a second end connected with a drain end of a second MOS; the second MOS has a source end connected with the ground and a gate end forming a second word line of the fuse programming unit; the mode control tube has a source end connected with the line end of the second efuse unit, a drain end connected with the source end of the first MOS and a gate end forming a correction end of the fuse programming unit. The application improves the use flexibility of the fuse programming unit array and realizes the redundancy correction function of each storage bit.

A battery pack may include a fusible link plate having a bent shape. The fusible link plate may include: a first plate part extending in a first direction; a second plate part extending in a second direction; and a bent part connecting the first plate part to the second plate part. The first plate part, the second plate part, and the bent part may be disposed along a first plane that is along both the first direction and the second direction. The first plate part may include a portion having a first cross-sectional area. The second plate part may include a portion having a second cross-sectional area. The bent part may include a first fusible part having a third cross-sectional area. The third cross-sectional area may be smaller than the first cross-sectional area and smaller than the second cross-sectional area.

The invention relates to a winding (1) of a sheath (2) made of plastic material and configured to accommodate at least one electrically conductive cable and / or at least one optical fibre cable, the winding (1) comprising a plurality of turns (8) that are at least partially juxtaposed and / or superposed and a plurality of fusible link zones (9) formed by plastic welding of the sheath (2) between adjacent turns (8), so as to form a ring with contiguous turns (3). The invention also relates to a method and a system for producing a winding of this kind.

The present invention provides a fuse that achieves a reduction in height even when an external fuse can be installed, and a method for manufacturing the fuse. A fuse (600) comprises a busbar (100) with an input terminal (110), an external terminal (120), a circuit unit (200), and a fusible link (113) provided between the input terminal (110) and the external terminal (120), as well as a housing (500) covering the busbar (100). The circuit unit (200) is configured to allow the installation of an external fuse (700) with a fusible link (730) and a connecting terminal (720).

The invention discloses an electric fuse memory, which is characterized in that an address switching module and an output mode selection module are added on the basis of a conventional basic function module, and a double-bit redundancy mode starting signal DB is added on the basis of an original control signal to serve as an enable signal of a double-bit redundancy working mode; two working modes of a normal working mode and a double-bit redundant working mode can be provided for a customer to select, all storage space can be used in the normal working mode, a redundant backup function can be realized in the double-bit redundant working mode, selectable input address length and selectable output results can be realized, conventional operation and redundant operation are ensured to be realized, and the user experience is improved. According to the invention, capacity and reliability can be both considered in the same electric fuse memory, the problem that the capacity is reduced by half due to redundant backup is avoided, the reliability problem of lack of a redundant backup function is also prevented, and compared with a conventional double-bit redundant backup application scheme, the chip area can be saved.

This utility model relates to a flue fireproof backflow preventer, comprising a valve body, a valve plate, and a hinge mechanism, as well as a valve plate locking mechanism. The valve plate locking mechanism includes a hinge seat, a locking element, a fusible link, and a limiting element. The hinge seat is mounted on the valve body. One end of the locking element is hinged to the hinge seat via a locking torsion spring. The locking element has a through hole, through which the free end of the fusible link passes and connects to the limiting element. The fusible link includes a first fusible link and a second fusible link. The limiting element is mounted on the first fusible link, and the second fusible link is connected to the hinge seat. The valve body has a positioning hole for the hinge seat or the second fusible link to extend. This utility model has a simple structure and is easy to operate. It can meet the requirements of normal kitchen ventilation and exhaust of smoke to the public flue, prevent the backflow of high-temperature smoke in the public flue, and prevent high-temperature smoke from entering the public flue during a kitchen fire. It can effectively prevent the spread of fire, giving this flue fireproof backflow preventer high fire resistance and wider application.

Fusible link (1) with integrated measuring function, - with a protective housing (2) from which two electrical connection elements (3, 4) of the fuse (1) are brought out and in which at least one fusible link (5) is arranged, which electrically connects the two connection elements (3, 4) in the protective housing (2), - with a measuring device (10) which has a sensor element (11) for detecting a physical state measurement value of the fuse (1) and a transmission device (13) for transmitting the measurement value to a receiving device arranged outside the fuse (1), characterized in that - that the measuring device (10) has its own housing (12) in which the sensor element (11) is received and held and which is mechanically connected to the protective housing (2), wherein the total installation space required for the protective housing (2) and the further housing (12) corresponds to the installation space of a standardized NH fuse, wherein the measuring device (10) has a processing unit (14) for processing the measured value, which is arranged in the housing (12) and coupled to the sensor element (11) and the transmission unit (13), and wherein the processing unit (14) has a microprocessor or a microcontroller.

Optoelectronic device (1) comprising a first electrode (20), wherein the first electrode (20) has a plurality of electrode elements (21) which are arranged separately from each other, so that there is a space between them, wherein the first electrode (20) also has a conducting structure (22) which is designed in such a way that it electrically connects adjacent electrode elements (21) to each other and thereby forms a fusible link between the connected adjacent electrode elements (21), wherein the conducting structure (22) comprises a conducting structure layer (22a) which adjoins the electrode elements (21) and electrically connects the adjacent electrode elements (21) to each other, thereby acting as the fuse, and wherein - the device further comprises a functional layer structure (10) which is suitable for emitting electromagnetic radiation when the functional layer structure (10) is energized, wherein - the guide structure (22) is set up to supply current to the functional layer structure, and the functional layer structure (10) covers the guide structure (22) on its side facing away from a support, and - the guiding structure (22) is in full contact with the functional layer structure (10).

A fusing structure, comprising a fusible link (10) and conductive members (20), wherein at least two conductive members (20) are arranged on either side of the fusible link (10), the conductive members (20) and the fusible link (10) are joined together, and the fusible link (10) is curved and / or zigzag in shape; a busbar, comprising a plurality of fusing structures; a battery module, comprising the busbar; a battery pack, comprising the battery module; and a device, comprising the battery pack. The fusing structure and the fusible links in the busbar are able to promptly and quickly cut off the electrical connection between a faulty battery cell and the other battery cells connected in parallel; the curved and / or zigzag-shaped fusible link has high safety performance; and the battery module, the battery pack, and the device use the busbar to achieve a multi-parallel battery configuration.

A tab configured to connect a printed circuit board with a conductive body, the tab comprising a relaxed state and an elastically deformed state. In the relaxed state, the tab has one or more elastically deformable fusible members spanning between a first end connected with the printed circuit board and a second end attached with the conductive body. In the elastically deformed state, the tab has a first end connected with the printed circuit board and a second end attached to the conductive body.

A heating device comprises a support, an electrically insulating base insulation layer, and at least one heating conductor circuit on this base insulation layer. The heating conductor circuit includes at least one heating conductor and electrical connections thereon. An electrically insulating secondary insulation layer is arranged on the support below the base insulation layer and between the base insulation layer and the support. An electrically conductive conductive layer is distributed over the substrate such that the base insulation layer is directly adjacent to the conductive layer. A protective earth (PE) connection is provided on the support or on the secondary insulation layer and is connected to ground. A fusible link is provided between the conductive layer and the support or the PE connection, respectively, as the sole electrical connection between the conductive layer and the support or the ground connection.

A heating device comprises a support, an electrically insulating base insulation layer, and at least one heating conductor circuit on this base insulation layer. The heating conductor circuit includes at least one heating conductor and electrical connections thereon. An electrically insulating secondary insulation layer is arranged on the support below the base insulation layer and between the base insulation layer and the support. An electrically conductive conductive layer is distributed over the substrate such that the base insulation layer is directly adjacent to the conductive layer. A protective earth (PE) connection is provided on the support or on the secondary insulation layer and is connected to ground. A fusible link is arranged between the conductive layer and the support or the PE connection as the sole electrical connection between the conductive layer and the support or the ground connection.

Circuits and methods for reading fusible links that allows use of low-voltage logic circuitry utilizing devices that may have a high-voltage stand-off capability. Embodiments provide predictable operation that is less susceptible to PVT variations, allow the use of arrays of fuses that may be scaled to relatively large memory sizes, uses little integrated circuit area, and do not require extra pins for operation. Embodiments utilize a latch circuit and voltage dividers to generate a reference voltage VREF and a fuse voltage VFUSE, and then compares and latches the greater of those voltages. The circuitry does not require any more supply voltage than is needed to turn ON input pass transistors to the latch at a slightly higher voltage (VTH) than VREF. Since VREF may be about 0.1V, that turn-ON voltage may be as low as about 0.1V+VTH, and thus would be less than a VDD_MIN of about 1V.