23results about How to "Avoid short circuit failure" patented technology

The utility model relates to electronic protector technical field, concretely is a kind of TVS device with automatic open circuit protection function, including device body, automatic open circuit protection mechanism and pin connecting mechanism, and automatic open circuit protection mechanism and pin connecting mechanism are fixedly connected in the inside of device body, in the utility model, through the setting of fusible wire, temperature sensor and memory alloy spring, the automatic open circuit protection of TVS device when encountering abnormal overcurrent or overvoltage is realized, fusible wire can rapidly fuse, and timely cut off circuit connection, prevent the further expansion of fault range, temperature sensor real-time monitoring temperature, when temperature abnormally rises, memory alloy spring will rapidly change under the signal driving of temperature sensor, the pressure generated by its deformation can assist fusible wire to fuse more quickly when reaching fusing temperature, greatly shorten the response time of automatic open circuit protection, greatly improve the security and reliability of circuit.

The present application relates to the technical field of transmitter, in particular to a kind of anti-condensation wind pipe type temperature transmitter, including the mounting bracket of fixed installation in the side wall of ventilation pipe, humidity detection component is fixedly installed in mounting bracket, temperature sensing tube is rotatably installed outside humidity detection component, the motor for driving temperature sensing tube rotation is fixedly installed in the side wall of mounting bracket, the dew removal device for removing condensation is equipped outside temperature sensing tube, both ends of temperature sensing tube are equipped with plugging component, and plugging component removes the plugging of temperature sensing tube end when temperature sensing tube rotates.The present application utilizes low-temperature high-humidity condition to trigger temperature sensing tube rotation, removes condensation by centrifugal throwing, and cooperates with reciprocating scraping to completely remove surface condensation, simultaneously utilizes friction micro-heat to improve pipe wall temperature, which is higher than dew point temperature, to inhibit condensation from generating again from source, while ensuring temperature measurement accuracy, significantly reduces equipment power consumption, solves the problems of poor anti-condensation reliability, high energy consumption and serious temperature measurement drift of traditional products.

The invention provides a light-emitting device, a preparation method thereof and a display panel, and belongs to the technical field of photoelectron manufacturing. The light-emitting device comprises a substrate, a bearing layer, a plurality of light-emitting units, a light-emitting unit protection layer and a planarization layer, the bearing layer is located on the substrate, the plurality of light-emitting units are located on the bearing layer, and each light-emitting unit comprises a light-emitting structure and an electrode structure located on the surface of the light-emitting structure; the light-emitting unit protection layer covers the side walls and the surfaces of the light-emitting structures of the plurality of light-emitting units and the side walls and the surfaces of the electrode structures, the light-emitting unit protection layer is in contact with the bearing layer, and the light-emitting unit protection layer is provided with a first through hole in the surface of each electrode structure; and the planarization layer covers the bearing layer, the plurality of light-emitting units and the light-emitting unit protection layer.

This utility model relates to the field of conductive busbar lead wire fixing technology, and discloses a conductive busbar lead wire fixing device for a high-current motor, including: a support plate mounted on the motor frame, a conductive ring welded to the motor stator coil, and a conductive busbar connected to the conductive ring; a lead wire plate is connected to the surface of the support plate, and the lead wire plate has multiple lead wire holes, through which the conductive busbar passes and is fixed to the lead wire plate by fixing bolts. This conductive busbar lead wire fixing device for a high-current motor, by setting a lead wire plate and lead wire holes, allows the conductive busbar to pass through the lead wire holes on the lead wire plate. The lead wire holes limit the distance between the conductive busbars, ensuring that even if the conductive busbars become loose during transportation, debugging, and operation of the motor, an electrical safety insulation gap is maintained, avoiding wear and rubbing problems of the motor's conductive busbars. The structural improvement effect is significant, improving electrical safety and preventing short circuit faults.

This invention relates to a method and apparatus for replacing an uninterrupted power supply (UPS) energy meter. The method includes: connecting an energy meter replacement device in parallel to the incoming and outgoing line sides of the energy meter to be replaced; the energy meter replacement device acquiring zero-crossing signals of the incoming and outgoing line voltages of the energy meter to be replaced; determining whether the three-phase wiring sequence is consistent based on the zero-crossing signals; if the three-phase wiring sequence is consistent, the energy meter replacement device switching the main circuit to the backup circuit to ensure uninterrupted power supply to the user side; removing the energy meter to be replaced and installing a new energy meter while the backup circuit is in operation; and acquiring electrical parameter data in real time during the meter replacement process; detecting whether any abnormality occurs during the meter replacement process based on the electrical parameter data; if an abnormality occurs, triggering a protection action and disconnecting the bypass circuit; and after the meter replacement is completed, the energy meter replacement device switching the circuit back to the main circuit and generating a meter replacement operation log.

The utility model relates to a box bottom cable moistureproof threading connection structure of a distribution box, comprising a distribution box body, the bottom of the distribution box body is provided with two wire inlets which are symmetrically distributed left and right, the distribution box body is internally provided with four moistureproof assemblies, every two of the four moistureproof assemblies are in one group, and the other two of the four moistureproof assemblies are in one group. The moisture-proof assemblies are symmetrically distributed up and down, each group of moisture-proof assemblies is mounted through a wire inlet, each moisture-proof assembly comprises a mounting base and a sealing ring, a cable enters the distribution box body through the interior of the mounting base, and after the cable is connected with an electrical element in the distribution box body, gas is injected into the cavity through the gas nozzle, so that the electrical element in the distribution box body is sealed. The sealing ring is tightly attached to the gap between the cable and the mounting base after expansion, so that a physical barrier is formed, moisture is effectively prevented from entering the box body, and cable insulation layer aging, metal part corrosion or short circuit faults caused by the moisture are avoided.

There is provided a semiconductor device including: a substrate having an active region formed thereon; a gate stack on the active region; a circuit wiring disposed over the gate stack; and a contact via structure on a side surface of the gate stack and between the active region and the circuit wiring, in which the contact via structure includes: a gate contact via extending between the circuit wiring and the active region; a first contact insulating film covering a portion of a side surface of the gate contact via and exposing a remaining portion of the side surface; and a second contact insulating film covering a portion of a side surface of the first contact insulating film, exposing a remaining portion of the side surface, and exposing a remaining portion of a side surface of the gate contact via.

The application relates to the technical field of dry transformers, and particularly discloses an amorphous alloy dry transformer with a double-layer shell structure, which comprises a mounting box body, a damping pad is fixedly connected to the bottom of the mounting box body through a support, a rain shelter is fixedly connected to the top of the mounting box body through a support, cooling devices are fixedly connected to the two sides of the mounting box body, and a transformer body is fixedly connected to the bottom of the mounting box body through a damping device. The amorphous alloy dry transformer with the double-layer shell structure is provided with the damping device, can absorb most of the vertical and horizontal vibrations generated during the operation of the transformer, and can automatically clean dust on the air inlet of the cooling device and scatter and agitate the drying agent by using the weakened slight vibration, so that the cooling and ventilation effect is improved.

This utility model discloses a moisture-proof and sealed installation structure for the control panel of a pellet oven, comprising: a controller; and a protective unit, wherein the protective unit is installed on one side of the controller surface to protect the controller surface. This utility model uses the protective unit installed on the surface of the controller to seal and protect the control panel on one side of the controller, preventing prolonged contact between external humid air and the control panel. A locking unit controls the opening and closing of the protective unit; opening the protective unit allows operation of the controller, while closing the protective unit prevents external moisture from contacting the control panel. Finally, a moisture-proof unit dehumidifies the interior of the closed protective unit, improving safety, preventing short-circuit malfunctions of the controller, and effectively extending its service life.

The utility model relates to the technical field of engine cover plate, especially relates to a dustproof and waterproof sealed engine cover plate, including first fixed plate and second fixed plate, the first fixed plate and second fixed plate between joint sealing assembly fixedly connected have, the sealing assembly upper end sleeve joint has the protection assembly, protection assembly upper end four corners all threadedly connected have bolt. The utility model discloses a dustproof and waterproof sealed engine cover plate, along with bolt tightening, protection assembly presses sealing assembly, and sealing washer is extruded and produces elastic deformation, and tightly fits the lower end surface of aluminium alloy shell, forms an elastic barrier, and the dust and moisture of outside are blocked outside the edge of cover plate, simultaneously, the sealing ring is extruded by the fire -retardant inner shell, fills the gap between sealing washer and fire -retardant inner shell, constructs the second sealed defense line, effectively avoids the trouble that engine causes dust accumulation to lead to poor heat dissipation, causes circuit short circuit because of water vapor erosion, prolongs the maintenance cycle and the service life of engine.

The utility model relates to a kind of assembled conductive copper bar structure, specifically a kind of assembled high load flow distribution's conductive copper bar structure, including assembling seat, two sides on the assembling seat are provided with slot, the side of the assembling seat is provided with fixed seat and the holding plate of the side of the fixed seat, copper bar body is provided between the assembling seat and fixed seat, adjusting mechanism and the limiting fastening mechanism for being used to the assembling of copper bar body are provided in the assembling seat, the adjusting mechanism is cooperated with the transmission mechanism of the side of the fixed seat, the utility model is inserted into the cooperation between the assembling seat and fixed seat, realize the way of inserting into to the superposition fixed of multilayer copper bar, need not be on copper bar hole for bolt fixed, effectively simplify installation and dismounting process, avoid the copper bar structure strength weakening and stress concentration problem possibly caused by hole simultaneously, guarantee the structural integrity and mechanical properties of copper bar.

This invention provides a voltage detection device, including a voltage detection head, a voltage detection unit, and an operating lever. The voltage detection head includes a voltage detection probe, a rotating ball integrally connected to the voltage detection probe, and a support column with threads at its lower end. The voltage detection unit includes a rotating assembly, a switching assembly, a steering mechanism, a first detection module, and a second detection module. The support column passes through the switching assembly and is movably connected to the steering mechanism. Rotation of the support column presses and activates the switching assembly. The support column is electrically connected to the first detection module, and the switching assembly is electrically connected to the second detection module. In this invention, the voltage detection head drives the rotating ball to rotate, which in turn presses and activates the switching assembly. The second detection module provides immediate feedback on whether the voltage detection operation conforms to the operating specifications, resolving the problem of ineffective voltage detection and eliminating significant safety hazards. Furthermore, the independent first and second detection modules effectively prevent the second detection module from short-circuiting due to strong voltage or current generated during voltage detection, further ensuring the reliability of the voltage detection operation specifications.

The utility model provides an LED lamp strip capable of being expanded and extended for use, which comprises a lamp strip and a connecting mechanism, the connecting mechanism comprises a connector male end, a connector female end, a baffle and a connecting ring, the connector male end is arranged at one end of the lamp strip, and the connector female end is arranged at the other end of the lamp strip; the baffle plate is arranged outside the connector male end; and the connecting ring is sleeved outside the connector male end. According to the LED lamp strip capable of being used in an expanded and prolonged mode, after the cylindrical connectors of two or more lamp strips are accurately clamped, the threaded rings are used for fixing, the joints of the lamp strips are tightly meshed, and even if the lamp strips are subjected to large stretching or twisting force in the wiring process, the connectors can be effectively prevented from loosening and shifting.

The invention belongs to the technical field of intelligent control of high-altitude power equipment, and particularly provides an intelligent control algorithm for a high-altitude grid-connected cabinet, which comprises a data acquisition module, a low-pressure heat dissipation efficiency adaptive compensation algorithm, a high-altitude multi-source feature fusion fault pre-judgment algorithm, an air temperature sudden change look-ahead temperature control algorithm and feedback iterative optimization. The cabinet can be used in a low-pressure environment, heat dissipation efficiency is improved, and temperature fluctuation in the cabinet is controlled. The method can improve the fault pre-judgment accuracy, reduce the fault false alarm rate, shorten the early warning time and remarkably reduce the high-altitude operation and maintenance cost aiming at the conditions that the traffic and communication in the high-altitude area are not changed, the maintenance cost is large and the loss influence is large. According to the method, a temperature control algorithm is adopted, different countermeasures can be adopted according to actual conditions to reduce temperature changes aiming at the fact that the temperature change rate of a high-altitude area is large, meanwhile, condensation risk pre-judgment is introduced, the condensation occurrence rate is reduced, and part corrosion and short circuit faults are avoided.

In a separator for an aluminum electrolytic capacitor having a conductive polymer, short circuit resistance is improved. The constitution of an aluminum electrolytic capacitor separator for an aluminum electrolytic capacitor having a conductive polymer as a cathode material, which is sandwiched between a pair of electrodes, is characterized in that it contains synthetic fibers and a binder, and has a breaking strength of 40 to 180 kPa, a breaking resistance index of 3.5 to 7.5 kPa / (g / m 2 ).

The utility model relates to LED packaging technical field especially a sealed protection type patch type LED light emitting diode, including fixed end electrically connected piece, LED wafer sets up on fixed end electrically connected piece, and the fixed end electrically connected piece and the welding end electrically connected piece are embedded in the one side surface position of the encapsulant, and the window is seted up on the encapsulant, and the LED wafer is exposed in the window middle position, and the gold wire both ends are connected with LED wafer and welding end electrically connected piece electricity respectively, and the light -transmitting body is installed in the edge position of window, and with the encapsulant constitutes sealed cooperation, can effectively avoid the light flicker, the brightness attenuation, the local extinguishing etc. phenomenon, and the luminous performance is more stable. Meanwhile, the short circuit failure caused by the welding spot corrosion aggravation is eliminated, the risk that the LED module burns is reduced significantly, the service life is greatly prolonged, the maintenance replacement frequency is reduced, and the use cost of each application field is reduced.

The application provides a battery monomer, a battery device, an energy storage device, an energy storage system, a power consumption device and a charging network. The battery monomer comprises: a shell having a containing cavity; an electrode assembly arranged in the containing cavity; and a support arranged in the containing cavity, wherein the support and the electrode assembly are distributed along a first direction, and the support is located between the electrode assembly and the shell; wherein along the first direction, the thickness dimension of the support is a, the height dimension of the shell is h, and the thickness dimension a of the support and the height dimension h of the shell satisfy: 4x10 ‑4 ≤a / h≤30x10 ‑4 The application can effectively balance the battery capacity and the heat dissipation requirement, and guarantee the cycle life of the battery.

The shell assembly comprises a shell, an air duct and an air outlet communicated with the air duct are formed in the shell, a limiting groove used for installing a driving shutter is formed in the inner wall of the end, close to the air outlet, of the air duct, and the driving shutter is arranged in the limiting groove. A limiting groove is formed in the air duct, a shaft hole which penetrates through the bottom wall of the limiting groove and is used for a rotating shaft to penetrate through is formed in the limiting groove, a protruding blocking rib is formed on the inner wall of the air duct, and the blocking rib is located on the circumferential edge of the windward side of the limiting groove and extends in the circumferential direction of the limiting groove. According to the shell assembly, the air volume of cold air flowing into the limiting groove can be effectively reduced during refrigeration of the air conditioner indoor unit, so that the air volume of the cold air flowing into the shaft hole in the bottom wall of the limiting groove is effectively reduced, condensed water beads can be prevented from being generated on the driving motor, short-circuit failure of the driving motor is prevented, the fault rate can be effectively reduced, and the service life of the air conditioner indoor unit is prolonged. And the stability and reliability are improved.

The utility model provides a kind of electromagnetic heating device of wire drawing machine die head, it is related to plastic weaving industry production technical field, including wire drawing machine die head, fireproof insulation cotton, high temperature cable, frequency conversion controller, insulating device, thermocouple;Fireproof insulation cotton is set in wire drawing machine die head outside, high temperature cable is successively wound in the outside of fireproof insulation cotton along the same direction, frequency conversion controller is connected respectively with the both ends of high temperature cable, insulating device is set in the outside of high temperature cable, thermocouple is set on insulating device;The utility model has adopted more suitable structure design of wire drawing machine die head, realized heating fast, temperature stability, energy conservation, safe and reliable technical effect, improve the product quality and production efficiency of plastic weaving bag wire drawing process.

According to the battery string and the photovoltaic module, on one hand, the first front bus bar is arranged on the back surface of the first battery piece, so that the front space is not occupied, the effective light receiving area of the photovoltaic module can be effectively improved, and the light efficiency is improved; on the other hand, the first insulating strip is positioned between the first front bus bar and the first back welding strip, so that a short-circuit fault caused by electric contact between the first front bus bar and the first back welding strip can be effectively prevented; furthermore, a low-temperature tin layer is arranged on at least one of the surface of the first lead-out part and the outer wall surface of the first front bus bar, and the hot melting temperature of the low-temperature tin layer is 130-200 DEG C, so that the welding temperature is controlled to be 130-200 DEG C, the first lead-out part and the first front bus bar can be welded and connected together, and alloy is formed at the contact part of the first lead-out part and the first front bus bar; the welding temperature is relatively low, and the first insulating strip cannot be damaged.

This invention discloses a multi-winding motor conductive ring structure, stator, and wind turbine generator. The motor conductive ring structure includes U, V, and W phase conductive ring groups. These three phase groups are arranged in rings from the outside inwards, with spacing between them, and are located on the same horizontal plane. Each phase group consists of 2N full-circle windings and 2N minor-arc windings. The virtual circle spacing formed by every two minor-arc windings is located between two full-circle windings. All conductive rings are located on a concentric circle, forming 4N sets of windings, evenly divided into two groups. Each group is individually connected to a corresponding converter. This invention divides multiple sets of windings into two equal parts. By combining full-circle windings and minor-arc windings, the winding current located within the two semicircles is introduced into the same converter, achieving redundancy design and uniform motor stress, avoiding vibration, noise, and other faults. It also reduces axial length and material usage, thereby reducing the unit's weight and manufacturing cost.

This utility model relates to a heat-dissipating receiver housing in the field of receivers. It includes a middle housing with a shelf inside. Compression springs are installed on both the left and right sides of the inner wall of the shelf, and clamping plates are attached to the ends of the compression springs. Thermally conductive silicone blocks are installed around the top surface of the shelf. After a circuit board is placed in the inner cavity of the shelf, the compression springs on the shelf drive the clamping plates closer to the circuit board, causing the clamping plates to engage with the outer side of the circuit board. Compared to traditional screw fixing methods, this mechanism allows for quick tool-free assembly and disassembly. The thermally conductive silicone blocks attract and dissipate the heat generated by the circuit board during operation, thus achieving efficient heat dissipation and preventing heat accumulation that accelerates component aging.

The invention relates to the technical field of high-voltage electrical equipment insulation resistance measurement, in particular to a switch cabinet insulation resistance measurement system based on a direct current generator, which comprises a state acquisition module for automatically acquiring a switch position state signal and a cable side electrification state signal and transmitting the signals to a locking control module; the locking control module performs logic judgment on the input signal, and outputs a measurement permission instruction to the measurement execution module when a safety condition is met; the measurement execution module starts a direct-current generator to generate direct-current high voltage, constructs an insulation resistance measurement loop and calculates an insulation resistance value; and the result display module displays the measurement result and verifies the integrity of the loop through a voltmeter arranged on the cable side. According to the invention, remote insulation measurement is realized through a modular architecture, and the safety risk caused by manual entering into a high-voltage interval is effectively eliminated.