65 results about "Fuse (electrical)" patented technology

This utility model relates to an ultra-thin rolled copper stamped fuse assembly. The fuse assembly includes a sheet copper substrate made of rolled copper with a thickness in the micrometer range, a first PI thermosetting film and a second PI thermosetting film respectively covering the upper and lower surfaces of the sheet copper substrate; the sheet copper substrate has a wavy fuse portion with a line width of 0.15±0.02mm. This utility model uses a high-precision die-cutting method to punch the ultra-thin rolled copper foil, directly forming a fuse semi-finished product. In particular, the extremely fine fuse portion is punched in one step, avoiding defects such as edge deformation caused by multiple punchings, ensuring stable dimensions and performance of the fuse portion. High-speed rotary die-cutting is then used for efficient and precise production, encapsulating the fuse portion within the film material, exposing the opening area and end area for electrical connection, improving production efficiency and subsequent use efficiency. The overall production efficiency can be increased to 5000pcs / H, and the yield rate to approximately 95%.

This invention discloses a plug-in board and adapter, associated electrical components, and an electric vehicle. The plug-in board includes an MCU circuit I, an adapter communication circuit, and a controller circuit. Some models also include a BMS battery management circuit, a vehicle electrical and electronic fuse circuit, a taillight control circuit, a communication line starting power supply circuit, a human-machine interaction circuit, and a battery communication circuit. The plug-in board is soldered to the controller's PCB circuit board via pins, or connected to the pins on the controller's PCB board via a socket. The plug-in board and the controller are housed in a single housing, saving space, material costs, and labor costs. The original controller's MCU chip can be improved to enhance controller performance and enable the application of bus control systems without modification, greatly simplifying the wiring harness and connectors throughout the vehicle.

The utility model discloses a kind of energy storage power supplies. Energy storage power supply includes electrical component, temperature module, fire-fighting module and pipeline assembly, fire-fighting module includes temperature sensing wire and spouts and emits module, temperature sensing wire is used to fuse when electrical component occurs thermal runaway, spouts and emits module and is connected with temperature sensing wire and is used to emit fire -retardant substance when temperature sensing wire fuses, flow channel assembly includes flow channel and valve, the import of flow channel is communicated with spouts and emits module, the outlet of flow channel is set to electrical component, valve is used to control the opening and closing of the outlet of flow channel;Temperature module is used to collect the temperature of electrical component, and when the temperature of electrical component is greater than or equal to the fuse temperature of temperature sensing wire, control valve opening in the set range of electrical component greater than or equal to fuse temperature, make fire -retardant substance that spouts and emits module spouts from the outlet of corresponding flow channel to electrical component. In the above-mentioned energy storage power supply, the spread of thermal runaway of energy storage power supply can be effectively inhibited.

A kind of comprehensive testing device for nuclear power plant control system relay fuse, it is characterized in that: including tester native, special-shaped heat pipe heat dissipation shielding module, magnetic interface conversion module, measured relay / fuse, external computer, external power supply;External power supply, measured relay / fuse, external computer are connected with tester native through shielding layer panel;External power supply powers tester native, external computer issues instruction to control tester native;Magnetic interface conversion module is connected with tester native, shielding layer panel.Connecting with tester native, shielding layer panel through magnetic interface conversion module, the stable and reliable work of relay fuse testing device in strong ionization environment is guaranteed;At the same time, through a series of design, it is guaranteed that the heat dissipation performance and electrical performance of relay fuse testing device are not influenced by shielding measure, the test function and test performance of relay fuse testing device are effectively guaranteed without discount.

The utility model relates to a replaceable power converter of self -recovery insurance structure, include: the shell subassembly has the installation cavity in its inside, main control circuit board is arranged in the installation cavity, support subassembly includes the chassis, support piece and roof that are arranged in the installation cavity, pin subassembly, at least one group pin subassembly is movably arranged in the installation cavity, and each pin subassembly is electrically connected with main control circuit board, the socket subassembly is electrically connected with main control circuit board, self -recovery insurance subassembly, support subassembly still includes insurance mounting bracket, and the insurance mounting bracket opens to one end, and self -recovery insurance subassembly is inserted with insurance mounting bracket, and the shell subassembly has the insurance socket for the self -recovery insurance subassembly inserts the insurance mounting bracket, and the bottom of insurance mounting bracket is equipped with electric connection insertion spring, and self -recovery insurance subassembly is equipped with electric connection pin, and electric connection pin is matched with electric connection insertion spring, and electric connection insertion spring is electrically connected with main control circuit board.

The utility model discloses a high pressure distribution box based on wear the cylinder connector relates to new energy automobile technical field, solved the traditional fuse box of prior art usually volume is bigger, vertical occupies size is bigger, is unfavorable to the problem of installation. The utility model discloses a main body subassembly is connected with the upper cover subassembly on, the main body subassembly includes the insulating support, and the insulating support is equipped with the casing, and the casing is threaded and is equipped with the incoming wire harness assembly of installation on the insulating support, and the output terminal assembly and the output wire harness assembly are electrically connected respectively to the output end of incoming wire harness assembly, and the output terminal assembly and the output wire harness assembly all extend the casing, and the high voltage insurance is still equipped with between incoming wire harness assembly and the output wire harness assembly, and the high voltage insurance sets up on the insulating support. The utility model discloses incoming wire harness assembly, output terminal assembly and output wire harness assembly are set up in the casing and the upper cover subassembly through the insulating support, and the volume is small, and the direct motor is on, and the space is small in the whole car.

The present application belongs to the field of automobile electronics, and provides a kind of automobile wire harness fuse wire current carrying capacity matching test method and system, comprising: establishing standardization pulse loading profile, constant current test is extended to cover the composite dynamic test sequence of peak thermal shock and average thermal accumulation;Collect fuse thermal accumulation integral value and wire insulation layer multi-point temperature, introduce three-dimensional evaluation index, identify thermal response asynchronous condition;Pulse peak and duty cycle are gradually increased, respectively, approach the limit of wire transient temperature rise and fuse thermal accumulation melting boundary, determine the safe matching interval by cross comparison;According to the safe matching interval, divide the matching level, select the optimization for asynchronous risk and overheating priority failure combination respectively, and feed back the optimization result to the selection specification.The test distortion problem caused by the asynchronous thermal response of fuse and wire under dynamic pulse current is solved, and the matching reliability and test accuracy of automobile electrical system are improved.

The application discloses an electrically programmable fuse cell, which is a 6-port device, and realizes ternary data storage through a voltage division circuit. Two fuses, i.e., a first fuse and a second fuse, are respectively subjected to programming operation. When working in a reading mode, the two fuses are in series connection in a reading current path, and the voltage of short-circuit points of the two fuses depends on the resistance ratio of the first fuse and the second fuse after programming in the voltage division circuit. The resistance value change of the first fuse and the second fuse makes the voltage of the short-circuit points present three states, which can represent three logic values in ternary, and can realize ternary logic data storage and output. The application further discloses a storage cell array formed by the electrically programmable fuse cell.

This invention discloses an electrically programmable memory, an electrically programmable memory programming method, and a chip, relating to the field of semiconductor integrated circuit technology. The electrically programmable memory includes: a power supply terminal, a programming control unit, a switching unit, a fuse resistor, and an overprogramming monitoring unit. The fuse resistor is connected between the programming control unit and the switching unit, and is connected to the power supply terminal through the programming control unit. The overprogramming monitoring unit is connected in series at the main circuit node where the fuse resistor is located and is connected to the programming control terminal of the programming control unit. It is configured to monitor the state of the programming electrical signal flowing through the fuse resistor in real time during the programming process where the programming control unit and the switching unit are turned on to program the fuse resistor, and output a programming end control feedback signal to the programming control unit based on the state of the programming electrical signal, thereby disconnecting the main circuit where the fuse resistor is located to end the programming and preventing overprogramming of the electrically programmable fuse. This invention is applicable to the programming scenario of fuse resistors.

The present invention relates to a circuit board fuse (1) for an electrical or electronic device and comprises a first and second connection area (2a, 2b), a burn-through area (3) arranged between the first and second connection areas (2a, 2b), and at least one cover area (4) which is arranged at least partially over the burn-through area (3) such that at least one tripping area (3a) of the burn-through area (3) is not covered by the cover area (4). The cover area (3) contains at least partially metal hydroxide and / or hard gas.

The present invention relates to an easy-to-replace capsule-type wire fuse and a method for replacing the same. More specifically, the invention relates to a wire fuse installed between a low-voltage wire and a low-voltage incoming line to protect a wire circuit from overcurrent of the low-voltage incoming line, comprising: a fuse part (100) in which a fusible element (120) is blown by the overcurrent of the low-voltage incoming line; a connection body part (200) that is electrically connected to the low-voltage wire and the low-voltage incoming line and contains the fuse part (100) so as to be electrically connected; and a fuse cover (300) that is detachably attached to the connection body part (200).

A fuse-less ignition system for fireworks. An ignitor module is provided that is insertable into a firework and includes: a first end exposing a pair of electrical conductors configured for receiving a plug and a second end having a perimeter wall that defines a recessed opening into which the pair of electrical conductors extend; a heating element positioned across the recessed opening in contact with the pair of electrical conductors; an insertable structure secured within the recessed opening, wherein the insertable structure includes a cavity with a hole at an inner end that exposes a portion of the heating element, and wherein the inner end secures the heating element in position; and a pyrotechnic material placed within the cavity of the insertable structure and being adapted to ignite in response to heat energy generated by the heating element.

This invention belongs to the field of electrical equipment technology and discloses an anti-theft metering box with a hinge-side shear pin anti-pry mechanism. The anti-theft metering box includes a cabinet assembly, in which a meter is connected. The cabinet assembly includes a housing with an open-end storage cavity. The meter is located within the storage cavity. A cabinet door is rotatably mounted on one end of the housing, capable of closing the storage cavity. The core anti-pry function is achieved through the linkage of the hinge assembly and a triggering assembly. The pin vertically penetrates the hinge fixing part and the housing, with a preset shear strength acting as a mechanical fuse. When the cabinet door is subjected to prying, impact, or other external forces exceeding a threshold, the pin breaks first, preventing deformation of the cabinet and hinge. Simultaneously, the transmission end identifies the pin's status in real time and wirelessly transmits abnormal information to a remote terminal, alerting staff to promptly investigate electricity theft or equipment damage.

An integrated circuit (IC) and system for providing electrostatic discharge (ESD) protection is disclosed that includes circuitry (e.g., ESD protection circuitry) electrically connected to a circuit board. The circuit may include: a functional component; a gate pad connected to the functional component; and an FET pair connected to the gate pad and forming a low impedance discharge path from the gate pad to ground to protect the functional component from an ESD event. Disclosed is an ESD protection method comprising: manufacturing a wafer comprising a plurality of circuits; cutting the wafer to form an IC (integrated circuit); packaging the IC to form a chip; attaching the chip to a printed circuit board; and applying a DC voltage exceeding a fusing voltage threshold level from the printed circuit board to a gate pad of the IC to fuse a fuse to disconnect an ESD protection circuit from the gate pad.

The utility model provides a kind of BFB electric appliance box, multiple bolts are pre-fixed in distribution electric appliance box main body, first busbar and second busbar are arranged at intervals and are fixed in distribution electric appliance box main body by corresponding bolt, one end of second busbar extends to distribution electric appliance box main body outside and is prefabricated with positive pole screw hole, positive pole screw hole is used to connect battery, positive pole cover is connected in the position of the positive pole screw hole of second busbar;One end of PSS fireworks control switch and two MIDI fuses are further connected on second busbar in distribution electric appliance box main body;Two ends of first busbar are respectively connected with MEGA fuse, and the middle part of first busbar is connected with the other end of PSS fireworks control switch.The electric appliance box structure cancels the traditional connection mode compared with traditional distribution electric appliance battery fuse box, adopts the novel connection mode that BUSBAR is directly screwed with battery, saves the connection of positive pole stake head and battery stake head, realizes product light weight, and reduces higher cost.

The utility model discloses a fuse structure of an electric appliance, which comprises an insulating cover and a metal support, the metal support is connected with the insulating cover, the metal support is provided with a contact part and a clamping part, the clamping part is used for clamping a fuse and electrically contacting and conducting with the fuse, and the contact part is used for electrically contacting and conducting with a conductive terminal in the electric appliance; the fixing and conductive functions of the fuse are integrated through the metal support, the design of an insulation frame is omitted, the design difficulty of an insulation cover is reduced, and meanwhile the insulation frame is prevented from occupying the internal volume of electrical equipment. Besides, the clamping portion of the metal support can firmly clamp the fuse, electric contact conduction between the fuse and the metal support is guaranteed, the contact portion can stably and electrically contact with a conductive terminal in an electric appliance, and normal work of the electric appliance is guaranteed. When the fuse needs to be replaced, only the insulation cover needs to be separated from the electrical equipment, the fuse can be conveniently taken out from the clamping part of the metal support, and effective plugging and unplugging of the fuse are achieved.

The application belongs to the technical field of batteries, and discloses a battery cover plate and a battery. The battery cover plate comprises a cover plate body and a conductive pole, the conductive pole is arranged on the cover plate body, and comprises an outer leading-out pole, an inner leading-out pole and a fuse structure. The outer leading-out pole and part of the inner leading-out pole are located on the side of the cover plate body away from the pole group and are electrically connected through the fuse structure. Another part of the inner leading-out pole is located on the side of the cover plate body facing the pole group. The inner leading-out pole is provided with a connecting groove and a through hole. A pole lug is connected in the connecting groove. The length of the through hole along a first direction is A1, the length of the pole lug along the first direction is A, and A+4mm≤A1≤2A is satisfied. Not only is the pole group damaged by the fuse structure avoided, but also the welding difficulty is reduced by directly observing the pole lug. In addition, by limiting the length A1, the pole lug is prevented from being damaged by knocking against the inner leading-out pole when passing through the through hole.

The current breaker has a central cavity (2), wherein a main conductor passes through this central cavity (2) and a separating piston can be moved in this central cavity by triggering a detonator, with the result that the main conductor is severed by the separating piston after the detonator has been triggered. The current breaker also has a fuse conductor (5) connected electrically in parallel with the main conductor. According to the invention, the fuse conductor (5) is fitted around the central cavity (2) of the current breaker, and at least one separating element (4) is provided for separating the fuse conductor (5) after the main conductor has been separated, with preferably two, four or eight separating elements (4) being provided, which are uniformly distributed over a periphery around the central cavity (2). The separating points of the fuse conductor (5) can be located in an extinguishing agent bed (8) and / or at the edge of an extinguishing agent bed (8'). According to one embodiment, the separating elements (4) can be moved radially in relation to the central cavity (2) and are driven by the movement of the separating piston. For this purpose, the separating elements (4) project into the central cavity (2) and have an oblique surface (3) there.

The utility model relates to a kind of separate battery connecting piece, for electrically connecting battery cell and cover plate, it includes first conductive section, second conductive section and the intermediate fuse layer connecting both, wherein, at least one of first conductive section and second conductive section has elastic deformation structure, in installation state, keep pre-press bending mode;The intermediate fuse layer is connected first conductive section and second conductive section respectively by metallurgical bonding mode;When battery connecting piece is heated and fused, the first conductive section or second conductive section of pre-press bending mode rebounds, for making the pre-press first conductive section and the second conductive section separate, disconnect the electrical connection between the battery cell and cover plate.This application not only can guarantee the normal work of connecting piece, realize good thermal management, but also can be fused quickly when short-circuit fault, reliably and stably realize fuse protection.

A battery pack, according to an embodiment of the present invention, comprises: one or more battery modules with several cells; busbars connected to the terminals of the modules to electrically connect said modules and, therefore, to an external battery management system (BMS) of the pack; a fuse box housing a fuse for connecting the terminals of the modules to the busbars; a vibration detection element fixed to a surface of the fuse box or to a surface of the busbars connected to the external BMS of the pack, for detecting vibration applied to the fuse connected to each of the modules, wherein said element is directly connected to a BMIC by means of terminals at both ends; and a BMS including the BMIC and connected to the vibration detection element to perform a protection operation based on the vibration detected in the modules.

The utility model relates to a fuse technology field discloses a novel small -size tubular fuse holder, including the shell, the inside of shell is provided with tubular fuse, the bottom of tubular fuse is provided with the second electrically conductive part, is provided with the spring between the second electrically conductive part and shell bottom, the top of shell is connected with the upper cover of screw thread, is provided with the elastic clamp between the upper cover and tubular fuse, the outside of elastic clamp is equipped with the first electrically conductive part. The utility model is applicable to a novel small -size tubular fuse holder, through the inside and outside thread connection of upper cover and shell, has reduced copper stud and copper nut, and the shell mould structure design optimization is improved simultaneously, the traditional internal thread demolding structure is improved, realizes batch production manufacturing feasibility, also is convenient for automatic injection moulding production, improves production efficiency, reduces material and artificial cost, reduces quality control difficulty simultaneously, improves product quality.

The utility model provides a kind of thermal fuse, including metal outer shell, first connecting wire, second connecting wire, sealing resin, insulating terminal, circuit breaking spring, star spring piece, elastic support and thermal fuse block, wherein metal outer shell is with aluminium alloy as base layer, outer surface is provided with stainless steel layer, inner surface is provided with silver metal layer, compared with traditional copper shell, the excellent electrically conductive heat performance of shell body is guaranteed, and it also has high strength, high toughness and light weight and other characteristics, at the same time, by stainless steel as surface layer, relative improvement resistance, reduce the amount of silver electroplated to outer surface when electroplating, reduce the amount of silver, ensure the reliability of thermal fuse through the excellent nature of silver inside, and ensure the connection stability of star spring piece through support.

This utility model relates to a fuse holder with a wrap-around pin, comprising a holder body with three sockets, each socket containing a pin. Each pin includes a wrap-around cylindrical tube, a square ring seat, and a connecting terminal. The wrap-around cylindrical tube and the square ring seat are integrally connected by a connecting piece, and the connecting terminal is integrally formed at the end of the square ring seat. The wrap-around cylindrical tube wraps around the end post of the fuse box, providing stable clamping; the square ring seat has a clearance fit with a square receiving hole in the socket to prevent the pin from rotating; the square ring seat has an elastic retaining plate that abuts against a stop block in the socket to prevent the pin from dislodging forward; the limiting step in the socket abuts against the flared section at the rear end of the wrap-around cylindrical tube to prevent the pin from dislodging backward. The connecting terminal has a raised strip to improve the reliability of the electrical connection. This utility model, through optimization of the pin structure, effectively solves the problems of unstable terminal connection and easy loosening in existing fuse holders, and has the advantages of compact structure, reliable connection, and convenient assembly.

The application relates to a construction method of a PT fuse failure diagnosis model under a plateau environment, and relates to the field of intelligent power distribution systems, which comprises the following steps: establishing and training an electrical fault diagnosis submodel, an environment fault diagnosis submodel and a state fault diagnosis submodel; acquiring structure information and operation environment information of a voltage transformer; generating a corresponding cascade strategy of the voltage transformer based on the structure information and the operation environment information of the voltage transformer; constructing a PT fuse failure diagnosis model based on the corresponding cascade strategy of the voltage transformer, the electrical fault diagnosis submodel, the environment fault diagnosis submodel and the state fault diagnosis submodel; collecting electrical parameters of the voltage transformer; collecting environment parameters of the voltage transformer; collecting a physical state of the voltage transformer; and determining a PT fuse failure cause based on the electrical parameters, the environment parameters and the physical state of the voltage transformer through the PT fuse failure diagnosis model, so that the PT fuse failure cause can be accurately analyzed.

The utility model discloses a BFT safety box relates to the technical field of automobile electrical fittings, including box body, the outside of box body is equipped with box cover, the top of box cover is equipped with the protective cover, the top of box body is equipped with the battery post fixedly, the utility model discloses a box body and box cover are set up, and the top of box body is equipped with the battery post, and the battery post can realize the circuit connection between the battery post head with the realization of device installation, through setting up the first fuse piece, second fuse piece, third fuse piece and fourth fuse piece in the inside of box body, and the first fuse piece, second fuse piece, third fuse piece and fourth fuse piece can realize the insurance protection of battery under different current, through setting up the baffle between the first fuse piece, second fuse piece, third fuse piece and fourth fuse piece, to avoid the first fuse piece, second fuse piece, third fuse piece and fourth fuse piece mutual influence.

The device, designed in particular as a fuse box (2), has an electrical contact connection (4) between two electrical conductors (5) by means of a bolt, which is designed in particular as a screw (6). The bolt has a circumferential groove (38) in the area of ​​its head (26) with a groove depth (T) extending in the axial direction (A), whereby a shaft (24) is extended beyond the head bearing surface (28), thus increasing the clamping length (L) of the bolt. This measure achieves a permanently reliable screw contact connection with high clamping force, and washers for adjusting the clamping length (L) are not required.

The present application relates to the field of thermal fuses, and particularly relates to a quick-response thermal fuse. The quick-response thermal fuse comprises a housing, a bimetallic strip disposed in the housing, a tripping device, a first electrode, a second electrode, and an electrical interrupting device bridged between the first electrode and the second electrode, wherein two ends of the tripping device are respectively abutted against a movable end of the bimetallic strip and the electrical interrupting device; the bimetallic strip is close to the housing; when the bimetallic strip deforms upon heating, the bimetallic strip pushes the tripping device and the electrical interrupting device out of their abutting state; and the electrical interrupting device maintains a closed state under an external force applied by the tripping device, and when the external force is removed, the electrical interrupting device is in an open state. The present disclosure integrates the advantages of two current technologies, i.e., a bimetallic strip technology and a low-melting-point alloy technology, and also overcomes the disadvantages of the two technologies, thereby improving the user experience, and also greatly improving the product performance.

This utility model discloses a capacitor fuse puncture test device, relating to the field of electrical technology. It includes a support frame, a clamping mechanism, and a puncture mechanism. The clamping mechanism comprises a sliding plate and a clamping plate. A horizontal groove is formed on the side of the support frame. One end of the sliding plate is slidably disposed within the groove, and the clamping plate is fixedly disposed at the bottom of the other end of the sliding plate. The puncture mechanism includes a slide rail, a slide base, an air hammer, an iron nail, and an air compressor. The slide rail is horizontally fixedly connected to the support frame. The slide base is slidably connected to the slide rail. The air hammer is fixedly connected to the slide base. The iron nail is fixedly connected to the output end of the air hammer. The air compressor is connected to the input end of the air hammer. The sliding plate and clamping plate of the clamping mechanism allow for flexible adjustment according to the thickness and dimensions of the capacitor casing, eliminating limitations imposed by the casing material. Whether the capacitor casing is made of ferromagnetic metal or non-ferromagnetic metal such as aluminum, the clamping mechanism enables stable installation.