299 results about "Fuse (electrical)" patented technology

The invention relates to the technical field of electrical equipment detection, and discloses an electrical equipment real-time state live detection method and system, and the system comprises a non-contact multi-source sensing array, an edge calculation unit, a high-frequency pulse excitation module, a self-adaptive installation structure, an intelligent diagnosis platform, and a self-energy-taking power supply unit. When electrical equipment state live-line detection is carried out, infrared thermodynamic characteristics, ultraviolet corona intensity and ultrasonic discharge signals are fused and collected through a non-contact multi-source sensing array, multi-parameter real-time sensing under the live-line condition is achieved, the problem of signal distortion caused by electromagnetic interference in traditional detection is solved, and the accuracy of state parameter extraction is improved; and meanwhile, the multi-dimensional feature data is subjected to standardization processing in combination with an edge calculation unit, so that the system can eliminate interference of environmental factors on detection results, the consistency of evaluation results under different working conditions is guaranteed, and state diagnosis errors are reduced.

The invention provides a control method and system for an energy storage PCS with an AC / DC circuit breaker and a storage medium, and the method comprises the steps: firstly, synchronously collecting the electrical parameters of a DC side and an AC side, and carrying out the preprocessing of the collected data, so as to form a standardized electrical matrix; then, all parameters in the electrical matrix are cyclically compared with corresponding early warning thresholds, first-level thresholds, second-level thresholds and fusing thresholds in a multi-level threshold mapping table; if the pre-warning threshold value is exceeded, a log is recorded, if the pre-warning threshold value is exceeded, self-healing operation is executed, if the pre-warning threshold value is exceeded, turn-off operation is executed, and if the pre-warning threshold value is reached, physical fusing is triggered; meanwhile, all operation logs are recorded, and the threshold mapping table is dynamically optimized by analyzing log data; according to the method, the fault response speed and the protection precision are improved through multi-level threshold serial comparison and a cooperative protection mechanism, the stability and the reliability under different working conditions are enhanced through the adaptive learning capability, and meanwhile, the whole life cycle cost is reduced.

The utility model discloses a quick response type temperature fuse. The quick response type temperature fuse comprises a shell, a bimetallic strip, a tripping device, a first electrode, a second electrode and an electrical breaking device, wherein the bimetallic strip, the tripping device, the first electrode and the second electrode are arranged on the shell; the electrical breaking device is arranged between the first electrode and the second electrode in a bridging manner; the two ends of the tripping device abut against the movable end of the bimetallic strip and the electrical breaking device respectively. The bimetallic strip is close to the shell; when the bimetallic strip is heated to deform, the tripping device and the electrical breaking device are pushed to be separated from the abutting state. The electrical breaking device is kept in a conducting state under the action of external force applied by the tripping device, and the electrical breaking device is in a disconnected state when the external force is removed. According to the utility model, advantages of two technologies of a bimetallic strip and a low-melting-point alloy are integrated, disadvantages of the two technologies are overcome, user experience is improved, and product performance is greatly improved.

A power distribution management integrated assembly of a battery system, a battery pack, and an automobile are provided and include a structure assembly (10), including a base (11) and a copper bar component (12); an electrical assembly (20), including a fast charging relay assembly (21), a main relay assembly (22), and a fuse (23) all arranged on the base (11) and all electrically connected to the copper bar component (12); and a hardware circuit assembly (30), including a control plate (31), a sampling component (32), a pre-charging resistor (33), and a pre-charging relay (34), the control plate (31) being arranged on the base (11), and the pre-charging resistor (33) and pre-charging relay (34) being integrated on the control plate (31), the fast charging relay assembly (21), main relay assembly (22), and fuse (23) being all electrically connected to the control plate (31).

The invention relates to the technical field of battery protection, and discloses a secondary temperature protection circuit and a battery management system. A first positive electrode port and a second positive electrode port of the two-stage temperature protection circuit are electrically connected to form a charging and discharging loop, and a first control port is used for receiving a first-stage control signal; the protection unit is connected in series to the charging and discharging loop, and the protection unit is in a closed state in a normal state; the primary protection control circuit is electrically connected with the control end of the protection unit and is used for controlling the protection unit to be switched to an off state according to the primary control signal; the secondary protection control circuit is used for driving the primary protection control circuit to control the protection unit to be switched off when the temperature of the battery unit exceeds a preset temperature threshold value; according to the invention, primary protection standby can be realized in a normal state, and mistaken-contact-preventing circuit shielding secondary protection can be realized; when a permanent fault occurs, primary protection is triggered, and shielding is removed; when the temperature exceeds a threshold value, the temperature sensing switch is switched on, the secondary protection drives the fusing device, and dual protection is achieved.

A first electrical connection box20 includes a housing body 31 open on an upper side Z1, a first terminal portion 50 provided in an edge part inside the housing body 31, a first side cover 70 arranged to project outward from the housing body 31 from a part corresponding to the terminal portion 50, and a fuse 92 provided inside the first side cover 70 and to be electrically connected between a third external power supply and the terminal portion 50.

An integrated field output terminal assembly for traffic controller cabinets includes a circuit board carrying high-density flash-transfer relays and output terminals on a front side, and a short-circuit protection subassembly on a rear side. The protection subassembly has rows of plug-in fuse holders electrically connected through the board to incoming power channels from high-density switch packs, with surge suppressors located between fuse sections. An insulating panel, spaced by standoffs, shields the rear circuitry while providing labeled openings for rapid fuse access. A swing-down mounting bracket lets the board pivot within the cabinet for tool-less inspection and replacement of fuses. By placing circuit protection on the same footprint as the output board, the assembly eliminates separate fuse panels and bulky harnesses, cutting cabinet volume, material cost, and service time while safeguarding switch packs against shorts, lightning, and wiring faults.

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%.

The invention discloses a high-temperature fusing fuel gas ball valve, a fuel gas safety control system and an installation method, and relates to the technical field of fuel gas ball valves.The high-temperature fusing fuel gas ball valve comprises a valve body assembly provided with a gas inlet channel, a gas outlet channel and a valve cavity; the valve ball is arranged in the valve cavity; the high-temperature fusing mechanism is arranged at an inlet of the air inlet channel and comprises a fusing support, a fusing valve element and a fusing spring, the fusing valve element and the fusing support are fixed through low-temperature welding flux, the welding flux is melted during overtemperature, and the fusing spring pushes the fusing valve element to achieve hard sealing cut-off; the overflowing cut-off mechanism comprises an overflowing valve element, an overflowing support, a cut-off spring and a sealing gasket, and when the flow exceeds the limit, the overflowing valve element displaces to abut against the sealing gasket to achieve sealing; and the insulating valve cover assembly comprises a metal insert and a PE insulating layer wrapping the metal insert, and is used for electrically isolating the valve body from an external pipeline. According to the multi-safety gas ball valve, the defects of an existing gas valve in the aspects of high temperature, overcurrent and insulation protection are overcome, and the multi-safety gas ball valve is compact in structure, sensitive in triggering, reliable in sealing and lasting in insulation performance.

The invention relates to the field of explosion-proof electrical technology, and discloses an intrinsically safe output Ethernet transmission circuit, which comprises an Ethernet physical layer transceiver chip U6, a network transformer U7, an electrostatic protection diode D17, an electrostatic protection diode D18, voltage stabilizing diodes D13-16, capacitors C46-62, resistors R42-45, resistors R59-65, thick film resistors R74-77, fuses F1-4, a safety Y capacitor CY1, an inductor L2, a gas discharge tube TV1, a gas discharge tube TV2 and an RJ45 connector RJ1. The intrinsically safe output Ethernet transmission circuit provided by the invention realizes 3000V voltage isolation, has the characteristics of low cost and easiness in implementation, not only has strong anti-interference and lightning surge protection capabilities and stable transmission performance, but also is easy to calculate and check intrinsically safe parameters through multi-stage isolation and current-limiting and voltage-limiting protection, and has a wide application prospect. And multiple key problems in intrinsic safety Ethernet transmission are effectively solved.

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.

A detonator for a perforating gun. The detonator is used to ignite a detonator cord in a charge tube for a perforating gun assembly, which in turn is used for perforating a wellbore. The detonator includes a cartridge. The cartridge comprises a tubular body having a first end; and a second end. Preferably, the tubular body is fabricated from a metallic material. The detonator also comprises a post proximate the first end of the tubular body. The post is configured to be in electrical communication with a first leg wire connected to an addressable switch. Alternatively, the post is in contact with the end of a detonation pin. The detonator also has a fuse head within the bore of the tubular body, and a fuse wire. The fuse head is in contact with the explosive charge material. The detonator is releasably snapped into a compartment located within the charge tube.

A multi-bit, asynchronous e-fuse macro, the macro comprising: an input output enable, a power on reset, a write address, an input write enable, a ground clamp enable, and a write clock; a plurality of e-fuse bits; a supply voltage configured to allow programming at least one of the e-fuse bits; at least one fuse output; and self-timing and control circuitry configured to perform signaling, wherein each of the inputs is in electrical communication with the e-fuse macro.

The utility model relates to the field of electrical connection equipment, in particular to a waterproof junction box with a fuse. The junction box comprises a box body and a box cover with the top hinged with a movable surface cover, which form a sealed main body. A wiring component is fixed in the box body, and a fuse bin is arranged at the top of the box body and used for installing fuses connected with a circuit in series. Two sides of the box body are provided with wire outlet holes, each hole is in threaded connection with a wire outlet pipe joint, and a first wire through hole and a fixing pipe with a through groove are arranged in the joint. A wire penetrates through the first wire through hole, then winds the outer wall of the fixing pipe and is pressed and fixed through the elastic piece in the locking screw, and the other end of the wire is led out of the second wire through hole of the locking screw. A waterproof rubber ring is arranged between the box body and the box cover, a socket waterproof ring is arranged at the top of the box cover and is matched and sealed with the movable surface cover, and rubber blocks are additionally arranged on the inner wall of the box cover and the movable surface cover to reinforce sealing of clamping positions. According to the structure, moisture permeation is blocked through multiple sealing, the pulling resistance of the wire rod is enhanced in a winding and pressing mode, the fuse bin provides overload fusing protection, and the movable surface cover facilitates rapid maintenance.

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.

An anti-fuse circuit includes a current generator and an anti-fuse sensing unit. The current generator has at least one replica electronic element. The anti-fuse sensing unit is electrically connected to the current generator, and the anti-fuse sensing unit has at least one electronic element. The electronic element specification of the at least one electronic element of the anti-fuse sensing unit is the same as the electronic element specification of the at least one replica electronic element of the current generator. The current generator supplies current to the anti-fuse sensing unit to sense the anti-fuse. By means of the technical solution of the present application, the anti-fuse circuit can improve the accuracy of sensing the anti-fuse.

Provided is an electrical connection box with a simple configuration that can prevent liquid from running into a housing. An electrical connection box for a vehicle provided with a case member for installing a first fuse includes a removal port formed at a front surface of the case member, the removal port enabling the first fuse to be installed and removed; and a groove formed around the removal port, the groove guiding liquid running down the front surface away from the removal port.

The utility model provides a protection circuit for an automobile body control module, which relates to the technical field of automobile circuit protection and comprises a power supply, a protection unit, a load and an external CPU (central processing unit). The power supply is electrically connected with the protection unit, and the protection unit is electrically connected with the load and the external CPU. The protection unit comprises a monitoring subunit, a main loop Mosfet, a pre-charging Mosfet and a driving chip; the monitoring subunit comprises a current monitoring part, a temperature monitoring part and a voltage monitoring part; the current monitoring part is electrically connected with the driving chip and the external CPU respectively, and the driving chip is electrically connected with the main loop Mosfet, the pre-charging Mosfet, the external CPU, the temperature monitoring part and the voltage monitoring part respectively. The electronic fuse solves the problems that a traditional fuse is low in response speed and unrecoverable, and an existing electronic fuse is complex in structure and cannot support large-current circuit protection.

The utility model discloses a pneumatic pump control module, and particularly relates to the pneumatic pump control module field, the pneumatic pump control module comprises a cabinet body, a cabinet door, an air inlet, an air outlet and a door lock catch, the cabinet door is installed on the side end face of the cabinet body through a hinge, the air inlet is arranged on the side end face of the cabinet body, the air outlet is arranged below the air inlet, and the door lock catch is arranged on the side end face of the cabinet door in a penetrating mode. An inner cavity of the cabinet body is provided with an electronic element quick-plug assembly. According to the device, wires used for connection are separated from installation positions of electrical elements such as a plurality of terminal blocks, fuses and relays, so that the problems that the wires are connected with intricate conductive wires to connect the electrical elements, so that the wiring of the electrical control panel is not attractive, the internal space of the electrical control panel cannot be reasonably occupied, and the electrical control panel is not attractive in appearance are solved. By means of the structure, a control module used by the pneumatic pump can be conveniently connected and installed, the situation that wiring of the electrical control panel is not attractive is not affected, and the situation that wires occupy the large space in the panel can be avoided.

Disclosed in the present invention is a power converter having a side-mounted socket. At least two side insertion holes are formed in a side edge of a housing, and comprise a side live wire insertion hole and a side neutral wire insertion hole. A fuse assembly comprises a fuse; a live wire (L) socket copper clip is provided with a first metal fuse clip extending downwards; a live wire (L) pin copper clip is provided with a second metal fuse clip; and two ends of the fuse are respectively placed in and are electrically connected to the first metal fuse clip and the second metal fuse clip. The side insertion holes are any one or a combination of US standard insertion holes, UK standard insertion holes, Chinese standard insertion holes, Australian standard insertion holes, or European standard insertion holes. The present invention achieves a simple structure and stable connection. Pins of different national specifications can be correspondingly converted into pins of other countries, and a side edge is provided with independent side insertion holes. After a pin of a certain specification is inserted into a front composite socket panel, pins of other specifications can also be inserted into side insertion holes to realize simultaneous connection and use, thereby improving the use efficiency of power converters.

A first electrical connection box 20 includes a housing body 31 open upward, an electrical component 40 provided inside the housing body 31, a first terminal portion 50 provided in an edge part inside the housing body 31, electrically connected to the electrical component 40 and further electrically connected to an external power consumption device, and a fuse 92 to be electrically connected between a third external power supply and the terminal portion 50.

A protection circuit arrangement includes a substrate having a first surface and a second surface; a connector on the first surface and electrically connected to a battery cell; an overvoltage protection element on the second surface and electrically connected to the connector; and a fuse on the first surface and electrically connected to the overvoltage protection element.

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.

A gas detection fuse comprising a thin strip or sheet of a conductive material, such as a metal, connecting two electrodes for detecting a gas of interest. The metal is selected to be reactive with the gas of interest, and has a relatively large surface area, such that when the gas of interest contacts the metal, the electrical connection between the electrodes is broken (e.g., due to the metal losing physical integrity, or becoming non-conductive, as a result of the reaction with the gas). The gas of interest may be chlorine, and the conducting material may be tin. When the tin is exposed to chlorine the tin becomes oxidized to produce liquid tin tetrachloride, thus breaking the electrical connection.

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 relates to the technical field of battery packs, and provides a battery pack with a short-circuit protection function. The PCB comprises a first circuit area A and a second circuit area A disconnected with the first circuit area A; the first connecting sheet is connected with the battery cell assembly and the first circuit area A; the PCB, the aluminum substrate and the cell assembly are sequentially stacked in a first direction and are relatively fixed, the aluminum substrate comprises a first circuit area B, a second circuit area B and a fuse for connecting the first circuit area B and the second circuit area B, the aluminum substrate and the PCB are relatively fixed, the first circuit area A is connected with the first circuit area B, and the second circuit area A is connected with the second circuit area B. Therefore, the battery pack has a short-circuit protection function, and can quickly disperse and cool heat generated when the fuse is fused, so as to protect other electrical parts.

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.