63 results about "Electrical Shorting" patented technology

The invention relates to the technical field of busbars, and discloses a multi-layer composite fire-resistant shielding busbar and a preparation method thereof, and the multi-layer composite fire-resistant shielding busbar comprises a conductor layer, a fire-resistant layer, a shielding layer and a sheath layer which are sequentially coated from inside to outside; wherein the conductor layer is made of copper or aluminum; the fireproof layer wraps the conductor layer and is formed by wrapping a double-layer PI three-in-one synthetic mica tape. According to the multi-layer composite fire-resistant shielding busbar and the preparation method thereof, the double-layer PI three-in-one synthetic mica tape is used for wrapping, a stable fire-resistant insulation structure is formed outside the conductor layer in a reverse wrapping mode that the first layer is clockwise and the second layer is anticlockwise, and the mica tape is formed by combining phlogopite paper and an organic silicon resin adhesive capable of resisting the temperature of 300 DEG C; the structural integrity can be maintained under the fire high-temperature condition, and electrical short circuit caused by thermal failure is effectively prevented; and meanwhile, the mica tape adhesive layer permeates into the micro-groove structure arranged on the surface of the conductor in the thermocuring process, so that the mechanical occlusion strength is further enhanced.

This utility model discloses a two-phase flow cooling chassis for airborne electronic equipment, including a chassis body. The chassis body includes a front insertion processing module, a lower cooling plate, a right side cooling plate, an upper cooling plate, a left side cooling plate, and a rear insertion interface module. The front insertion processing module and the rear insertion interface module are located on the front and back of the chassis, respectively. The upper and lower cooling plates are located at the top and bottom of the chassis, respectively. The left and right side cooling plates are located on both sides of the chassis. Microchannels are added to the cooling channels corresponding to electronic modules with high and concentrated heat generation to increase the effective contact area between the refrigerant and the heat dissipation surface within the cooling channels, and to increase the turbulence during the refrigerant flow process to enhance heat dissipation. The refrigerant absorbs a large amount of heat during the transition from liquid to gas phase and flows out of the chassis, thereby significantly improving the heat dissipation performance of the chassis and reducing the risk of electrical short circuits and damage to electrical equipment.

The invention relates to the field of diode production and processing, in particular to press-fitting quality optimization design of a diode in the press-fitting process. According to the press-fitting system and method suitable for the laser diode, the direction of the diode is adjusted in real time before press-fitting through the integrated automatic overturning design, efficiency is improved, failure modes such as electrical short circuit, optical imbalance and poor heat dissipation caused by direction errors are effectively avoided, and the service life of the laser diode is prolonged. And high precision and high reliability of the laser press fitting process are guaranteed.

A pollution monitoring sensor system for monitoring the contamination of a high-power electricity device against overheating and electrical short circuits is disclosed. The system 1 comprises a casin

The discharge adapter comprises a gun body, a gun head unit is arranged at one end of the gun body, a socket unit is arranged at the other end of the gun body, the socket unit comprises a panel, a plug bush and a pressing plate, a mounting groove is formed in the back face of the panel, and a limiting block is arranged in the mounting groove; the pressing plate is fixed at the notch of the mounting groove, the plug bush is clamped between the limiting block and the pressing plate, and the plug bush is connected with the pin through a wire; a first sealing layer is arranged between the pressing plate and the plug bush, and a second sealing layer is arranged on the side, away from the first sealing layer, of the pressing plate. The plug bush is clamped between the limiting block and the pressing plate, so that the plug bush is quickly positioned and fixed, the assembly process of the socket unit is obviously simplified, and the production efficiency is improved; and rainwater or moisture can be effectively prevented from permeating through a double-sealing structure, the potential safety hazard of electrical short circuit in a humid environment is solved, and the reliability and the safety of the product in outdoor use are greatly improved.

The utility model discloses a double-layer suspended assembly fixing structure, which relates to the technical field of electrical installation, and adopts the technical scheme that the double-layer suspended assembly fixing structure comprises an installation seat, and a plurality of assembly components are arranged on one side of the installation seat; the assembling assembly comprises a supporting column, the supporting column is arranged on one side of the mounting base, a first thread sleeve is fixedly arranged at the top of the supporting column, a first hexagonal nut is arranged outside the first thread sleeve through a thread sleeve, a second thread sleeve is fixedly arranged on one side of the first hexagonal nut, a second hexagonal nut is arranged outside the second thread sleeve through a thread sleeve, and a long bolt is arranged on one side of the second hexagonal nut. The device has the beneficial effects that by adjusting the height of the second hexagonal nut, the safe distance between the conductive plate and the non-conductive plate can be accurately controlled, electrical short circuit is effectively prevented, the overall safety of a system is improved, and the design of a slot and a movable plate on the non-conductive plate is more convenient to use. Therefore, the connection port is more convenient to install and fix, and the assembly difficulty is reduced.

A method is proposed for simulating and analysing at least one electrical short-circuit in an electrical wiring interconnection system (EWIS) for a vehicle. The result is a report concerning the safety of the EWIS that lists, for a selected modelled pathway (on which at least one short-circuit is simulated), any functional information associated with one or more modelled pathways affected by the at least one simulated short-circuit. A method is also proposed for designing and manufacturing the EWIS that is based on the simulation and analysis method. This assists the manufacturer in confirming the compliance of the EWIS (notably the spaces between the cable paths, in order to avoid any risks of short-circuits thereon) as early as possible in the process for designing and manufacturing this system.

The application provides a water-cooled grinding wheel, and belongs to the technical field of grinding wheels, to solve the problems of direct water pouring and water cooling in the prior art, which can easily cause electrical short circuit and a high humidity working environment. The water-cooled grinding wheel comprises a grinding wheel disc body, an inner through hole is arranged in the middle of the grinding wheel disc body, a plurality of cooling flow channels are arranged along the radial direction of the grinding wheel disc body, an inner flow channel snap ring and an outer flow channel snap ring installed on the outer periphery of the grinding wheel disc body are arranged on the inner through hole, the inner flow channel snap ring is provided with a second flow channel, the outer flow channel snap ring is provided with a first flow channel, the two ends of the cooling flow channel are respectively communicated with the first flow channel and the second flow channel, and the outer periphery of the outer flow channel snap ring is provided with a grinding wheel body; an outer pipe body and an inner pipe body, one end of the outer pipe body is communicated with the first flow channel, and one end of the inner pipe body is communicated with the second flow channel; an outer current collecting ring, the other end of the outer pipe body is communicated with the outer current collecting ring; and an inner current collecting ring, the other end of the inner pipe body is communicated with the inner current collecting ring.

The utility model relates to the field of alternating-current vacuum contactors, in particular to an alternating-current vacuum contactor wiring terminal structure capable of preventing mechanical jamming, which comprises a wiring board. The wiring grooves are formed in the wiring boards and used for wiring terminals, and the wiring boards are installed on the two sides of the alternating current vacuum contactor body. According to the alternating current vacuum contactor wiring terminal structure capable of preventing mechanical jamming, the wiring board, the wiring groove, the dustproof assembly and the fixing mechanism are arranged, so that the wiring terminal can be effectively isolated from the surrounding environment to a certain extent, dust, particles and other metal parts are effectively prevented from falling into the wiring terminal structure, and the service life of the wiring terminal structure is prolonged. The terminal is connected with the wiring groove in the wiring board, then the dustproof cover is turned over on one side of the wiring board, a clamping block at one end of the dustproof cover is inserted into a clamping groove in one side of the wiring board for limiting connection, and a plurality of dustproof sheets are arranged at an opening of the dustproof cover, so that dust and other metal can be blocked; according to the design, the risks of electrical short circuit and mechanical jamming are reduced to a great extent.

The utility model discloses a copper bar protection assembly and a battery pack, the copper bar protection assembly comprises a first protection piece, the first protection piece is arranged on a first bar body, a first accommodating cavity is formed in the first protection piece, and a conductive column of the first bar body is located in the first accommodating cavity; the first protection part is arranged on the first row body, the second protection part is arranged on the second row body, a second containing cavity is formed in the second protection part, the conductive columns of the second row body are located in the second containing cavity, and the first protection part is connected with the second protection part in a clamped mode. According to the copper bar protection assembly, the copper bar protection assembly is arranged on the copper bar, so that electrical short circuit can be prevented, the copper bar is prevented from being affected by physical damage, moisture, dust and the like, the safety and the stability of the copper bar are improved, the damage risk of the copper bar is reduced, and the copper bar protection assembly is simple and reliable in structure and convenient to disassemble and assemble.

The utility model discloses a humidity-adjusting explosion-proof valve in the field of explosion-proof valves, which comprises a valve body, a protective cover and a fixed seat, the valve body is provided with a guide rod penetrating through the valve body and a spring arranged between the guide rod and the valve body, the spring is used for providing elastic force for the guide rod along the direction of the valve body all the time, a through hole is arranged in the fixed seat, and the through hole is communicated with the guide rod. The fixing base is provided with a first containing cavity and a second containing cavity with upward openings, the first containing cavity is communicated with the second containing cavity, the second containing cavity is communicated with the through hole, and a breathable film used for blocking the through hole is arranged in the first containing cavity. A humidity adjusting piece used for blocking the through hole is arranged in the second containing cavity. According to the humidity-adjusting explosion-proof valve disclosed by the utility model, external moisture is effectively prevented from entering through the laminated arrangement of the breathable film and the humidity-adjusting sheet, internal moisture is absorbed through the humidity-adjusting sheet, the external moisture is blocked bidirectionally through the breathable film, and faults such as electrical short circuit and the like in a battery pack and a box caused by a water condensation phenomenon are prevented.

The protection structure comprises a bottom plate and the anti-explosion dehumidifier arranged at the top of the bottom plate, an air outlet and a heat dissipation opening are formed in the front side and the rear side of the anti-explosion dehumidifier respectively, a rotating shaft is rotationally connected to the middle of the bottom plate, and the anti-explosion dehumidifier is fixedly connected to the top end of the rotating shaft. Two sealing plates are symmetrically and slidably connected to the top of the bottom plate and located on the two sides of the anti-explosion dehumidifier, sealing rings are installed on the opposite sides of the sealing plates, a control assembly is further arranged in the bottom plate and located on one side of the rotating shaft, and the control assembly is used for driving the sealing plates to move in the opposite directions or away from each other. By means of the structure, the sealing plate is arranged, when the dehumidifier stops running, the sealing plate can seal the air outlet and the heat dissipation opening, so that external flammable and explosive gas and the like are effectively prevented from entering the anti-explosion dehumidifier, the risk of explosion caused by sparks caused by electrical short circuit, overheating or static electricity and the like is reduced, and the service life of the dehumidifier is prolonged. And the use safety of the equipment in a flammable and explosive environment is ensured.

Solid-state lighting devices including light-emitting diodes (LEDs) and more particularly LED packages for environmental indication are disclosed. LED packages include one or more LED chips and reactive materials that preferentially react with environmental ingress. After sufficient reactant exposure, the reactive materials may degrade and exhibit reduced electrical conductivity. Reactive material arrangements relative to electrical connections are provided so that the one or more LED chips either turn on, turn off, or lose brightness to provide visual indication of environmental reactants. Reactive materials may form electrical shorting paths that bypass one or more LED chips until sufficient reactant exposure when the shorting paths fail and the one or more LED chips are electrically activated. Alternatively, reactive materials may form parts of electrically conductive paths for the one or more LED chips such that with sufficient reactant exposure, the electrically conductive paths fail and the one or more LED chips are electrically deactivated.

A sidewall protection layer is formed on sidewall spacers of a dummy gate structure of a semiconductor device prior to etching an underlying fin structure to form a source / drain recess. The sidewall protection layer enables the profile of the source / drain recess to be precisely controlled so that etching into residual dummy gate material near the source / drain recess is minimized or prevented. The sidewall protection layer may be removed or retained in the semiconductor device after formation of the source / drain recess. The sidewall protection layer reduces the likelihood of the source / drain regions of the semiconductor device contacting the metal gate structures of the semiconductor device after the dummy gate structures are replaced with the metal gate structures. Thus, the sidewall protection layer reduces the likelihood of electrical shorting between the source / drain regions and the metal gate structures.

The utility model provides a bus duct facilitating heat dissipation, which comprises a bus duct bar body, side covering plates are symmetrically arranged on the left side and the right side of the upper end of the bus duct bar body, front and rear covering plates are symmetrically arranged on the front side and the rear side of the upper end of the bus duct bar body, and an electric strip-shaped guide rail is fixedly connected to the upper end of the side covering plate on the left side. An adaptive slotting strip is arranged at the upper end of the side covering plate located on the right side, the output end of the electric strip-shaped guide rail is connected with a transverse displacement strip, and the electric strip-shaped guide rail is precisely matched with the adaptive slotting strip to drive the transverse displacement strip to horizontally move above the bus duct strip body along a set route; the electric fan blades below the transverse displacement strip are electrified to operate to generate directional wind power, the internal temperature is effectively reduced, and when the heat dissipation blowing assembly moves back and forth, the corrugated follow-up plates at the two ends always keep the upper part of the bus duct strip body relatively closed by virtue of a unique flexible structure, so that external impurities can be prevented from entering, faults such as electrical short circuit can be prevented, and the service life of the bus duct strip is prolonged. And normal operation of the heat dissipation blowing assembly is not hindered.

The invention provides an anti-condensation control method for a CDU liquid cooling system and the CDU liquid cooling system, and the method comprises the steps: receiving temperature and humidity data transmitted by a temperature and humidity sensor and liquid supply temperature data transmitted by a first temperature sensor through a controller, and calculating the current dew point temperature through the temperature and humidity data; if it is determined that the current liquid supply temperature meets the dew-point temperature condition according to the liquid supply temperature data, the dew-point comparison temperature corresponding to the current dew-point temperature and a liquid supply temperature target value are obtained, and the opening degree of an electric valve is controlled according to the comparison result of the dew-point comparison temperature and the liquid supply temperature target value. The dew-point temperature condition comprises that the current liquid supply temperature in the preset time period is smaller than the dew-point temperature threshold value, and the dew-point comparison temperature is larger than the dew-point temperature threshold value and larger than the dew-point temperature. According to the embodiment of the invention, condensation on the surface of the secondary side pipeline can be effectively avoided, the risks of electrical short circuit and equipment corrosion are reduced, and the equipment safety is improved.

The embodiment of the application provides a dehumidification method and an energy storage system. The method is applied to a control device of an energy storage system. The energy storage system comprises the control device, at least one battery cluster, a cluster rack, a temperature and humidity sensor corresponding to each battery cluster, an axial flow fan and a dehumidifier. The method comprises the following steps: obtaining first temperature and humidity data, second temperature and humidity data and outlet water temperature of cooling liquid; determining a dehumidification strategy for the energy storage system based on the first temperature and humidity data, the second temperature and humidity data and the outlet water temperature of the cooling liquid; and controlling operation of the axial flow fan and the dehumidifier based on the dehumidification strategy to dehumidify the energy storage system. The dehumidification method provided in the application can improve the timeliness of eliminating condensation, thereby reducing the occurrence probability of electrical short circuit, corrosion or thermal runaway caused by condensation.

The invention relates to the field of energy storage safety, and discloses an energy storage box environment regulation and control device, which comprises a composite detector arranged in an energy storage box body and used for monitoring environment parameters; the control device is used for generating an environmental parameter adjustment instruction based on a preset regulation and control strategy and the environmental parameters; the pneumatic power unit is arranged in the energy storage box body, output fluid sequentially flows through the heat exchanger and the battery pack, and the pneumatic power unit is used for responding to the environmental parameter adjusting instruction to introduce natural wind so as to remove gaseous and / or liquid impurities in the energy storage box; and the environmental parameters in the cavity between the battery pack and the energy storage box body and the environmental parameters in the battery pack meet the preset conditions. And the interior and the exterior of the battery box can be synchronously dehumidified and can also be heated and cooled, so that the risks of electrical short circuit, thermal runaway and the like are greatly reduced, and the cost and the maintenance difficulty of a battery system are remarkably reduced.

A pollution monitoring sensor system for monitoring the contamination of a high-power electricity device for protecting the high power electricity device against overheating and electrical short circuits. Furthermore, an upgrade kit to upgrade such high- power electricity device is described. Additionally, a use of a pollution monitoring sensor system or an upgrade kit is described. Furthermore, a method for monitoring the contamination of such high-power electricity device is described. Additionally, a computer program product, tangibly embodied in a machine-readable storage medium, including instructions operable to cause a computing entity to execute such method is described. Furthermore, to a storage device for providing an inventive computer program product is described.

An integrated circuit (IC) package has a ferrite-dielectric shield layer between a planar inductor coil and a semiconductor chip. The shield layer blocks electromagnetic interference (EMI) generated by current in the inductor coil from reaching the semiconductor chip. The shield layer has a ferrite layer surrounded by upper and lower dielectric layers to prevent electrical shorting. A center terminal of the inductor coil is connected to the semiconductor chip through a center post that passes through an opening in the shield layer over the center of the inductor coil air core. The center post can be connected to a chip mount pad on which the semiconductor chip is mounted. Wire bonds connect pads on the semiconductor chip to lead frame pads on lead frame posts whose distal ends are external package connectors. The outer terminals of the inductor coil are connected to lead frame outer posts that also have external package connectors, such as pins or solder balls.

The utility model relates to a plum blossom type copper jointing clamp which comprises a shell, an installation cavity is arranged in the shell, sliding grooves are arranged on two sides of the installation cavity, a slidable bottom plate is arranged in the sliding grooves, the bottom plate comprises an installation portion and an extending portion, the installation portion of the bottom plate is installed in the sliding grooves of the installation cavity, and an opening is arranged on the installation cavity of the shell corresponding to the extending portion. The extending part of the bottom plate extends out of the opening of the shell, and the bottom plate is covered with a cover plate. According to the wiring clamp, the sliding groove is formed in the shell, the bottom plate is allowed to slide in the sliding groove, the length of the extending part of the bottom plate can be flexibly adjusted through the wiring clamp so as to meet the connection requirements of wires or cables with different lengths, the wire clamping holes formed between the bottom plate and the cover plate can firmly clamp the wires or the cables, and the wiring clamp is convenient to use. The cover plate is fastened to the bottom wall of the mounting cavity of the shell through the bolts, the clamping stability is further enhanced, the shell is made of insulating materials, the electrical short circuit and electric shock risks are effectively prevented, and the safety of the equipment is improved.

The utility model discloses a coil assembly and TLVR coupling inductor belong to electronic component technical field. Coil assembly includes primary coil and secondary coil, and primary coil includes first pin, and secondary coil includes second pin, and the end of first pin is equipped with first terminal PIN leg and the first insulating part of ring and is equipped with the first terminal PIN leg all around, and the end of second pin is equipped with second terminal PIN leg and the second insulating part of ring and is equipped with second terminal PIN leg all around, and first terminal PIN leg and second terminal PIN leg are all used for conducting connection, prevent the problem of electrical short circuit or voltage drop.

A method of mitigating electrical faults includes detecting an electrical fault at a first inverter of an electrical propulsion system having the first inverter and a second inverter; activating a three-phase short at a first three-phase electrical circuitry of the first inverter after detection of the electrical fault at the first inverter; and thereafter generating a torque that counters windmilling of the electrical propulsion system by performing at least one of: activating a three-phase short at a second three-phase electrical circuitry of the second inverter; or applying a stoppage voltage via the second inverter.

The application discloses a generalized transverse difference protection for 400V photovoltaic substation power generation units, which comprises the following steps: collecting information data of detected electrical quantities; judging the state of the collected data; and performing corresponding operations according to different state conditions. The generalized transverse difference protection for 400V photovoltaic substation power generation units can distinguish potential faults or electrical short-circuit faults and take different protection measures respectively. The method has low dependence on communication and high self-adaptability, and is suitable for the low-cost scheme requirement of 400V substations. In the method, the communication online self-checking mode is adopted, for the power generation units with abnormal communication, the adaptive method is adopted to eliminate the corresponding data and lock the protection.

The utility model relates to an alternating current contactor, which comprises a shell, a plurality of wiring ports arranged on the shell, a coil framework arranged in the shell, an enameled wire wound on the coil framework, a long wiring pin and a short wiring pin arranged in the coil framework and insulated from the coil framework. According to the utility model, the long wiring pin and the short wiring pin which are arranged in the coil framework are electrically connected with the wiring port on the shell, so that the whole structure of the alternating current contactor is more compact, the occupied space is reduced, the assembly process is greatly simplified, the production efficiency is improved, and the connection between the long wiring pin and the wiring port and the connection between the short wiring pin and the wiring port are more convenient. Stability and reliability of electrical connection are ensured by welding connection between the long wiring pin and the short wiring pin and welding connection between the enameled wire and the wiring pin, risks of poor contact and looseness are reduced by the connection mode, efficiency and safety of circuit transmission are improved, and insulation design between the coil framework and the long wiring pin and between the coil framework and the short wiring pin is achieved. And the phenomena of electrical short circuit and electric leakage are effectively prevented.

The electromagnetic valve with the self-drainage function comprises a shell, a protective layer is fixedly arranged on the inner wall of the shell, a coil matched with the protective layer is arranged in the protective layer, an electrified wire electrically connected with the coil is fixedly arranged on the coil, and at least part of the electrified wire extends out of the shell. A containing cavity is further formed in the shell, a static armature fixedly arranged on the shell is arranged in the containing cavity, and a movable iron core capable of moving upwards relative to the static iron core is arranged on one side of the static iron core. A drain hole is further formed in the outer circumferential face of the shell and located in the side, away from the power-on wire, of the static iron core. The beneficial effects of the utility model are mainly reflected in that the design of the drain hole can timely drain the condensate water in the shell, thereby avoiding the accumulation of the condensate water, avoiding the occurrence of electrical short circuit, open circuit or corrosion and clamping stagnation of internal parts and the like, improving the safety and prolonging the service life. And meanwhile, the coil is separated by the protective layer, so that the condition of electrical failure of the coil caused by condensate water can be avoided, and the service life is further prolonged.

The invention discloses a liquid leakage detection device, a liquid cooling system and a vehicle, the liquid leakage detection device comprises a liquid leakage detection assembly and a detector, a gap is formed in the liquid leakage detection assembly, the gap can contain liquid, the liquid leakage detection assembly is configured to be capable of generating a signal, and when the gap is filled with the liquid, the signal is sent to the detector. The signal is changed; the detector is in signal connection with the liquid leakage detection assembly, the detector is configured to be used for detecting the variable quantity of the signal, and if the detector detects that the variable quantity of the signal exceeds a preset threshold value, liquid leakage prompting is carried out. According to the liquid leakage detection device provided by the embodiment of the invention, the liquid leakage of the equipment can be timely and effectively detected, electrical short circuit, equipment damage and safety accidents caused by the liquid leakage are prevented, and the use safety of the equipment is improved, so that the stable operation of the equipment is ensured.

The utility model relates to the technical field of PTC (Positive Temperature Coefficient) heating bodies, in particular to a chip type corrosion-resistant PTC heating body, which comprises a heating element, an insulating layer is fixedly connected to the outer wall of the heating element, an anti-corrosion layer is fixedly connected to the outer wall of the insulating layer, and the anti-corrosion layer is made of a silicon rubber material, has good high-temperature resistance, corrosion resistance and insulating performance and is good in flexibility; electrodes are fixedly connected to the two ends of the heating element, connecting holes are formed in the electrodes, an upper shell is slidably connected to the outer wall of the anti-corrosion layer, a lower shell is slidably connected to the outer wall of the anti-corrosion layer, and the upper shell is arranged on the upper portion of the anti-corrosion layer. According to the utility model, the two ends of the heating element are connected with the electrodes, the insulating layer is fixed around the heating element, the anti-corrosion layer is added, the insulating layer prevents electrical short circuit and mechanical damage, the anti-corrosion layer is made of a silicone rubber material, is high-temperature resistant, corrosion resistant, insulating and flexible, and finally the upper and lower shells are clamped at the two ends of the anti-corrosion layer to form the PTC heating element, so that the service life is prolonged.

The utility model discloses a container energy storage device with liquid cooling function, including container, be equipped with energy storage frame in the container, be equipped with liquid cooling refrigeration system and a plurality of liquid cooling battery box on the energy storage frame, refrigeration conveying device is fixed in the container, and refrigeration conveying device is connected with liquid inlet pipe and liquid outlet pipe, liquid inlet joint and liquid outlet joint, draft tube, liquid inlet pipe, liquid outlet pipe all are connected with electric valve, located electric valve's fluid upstream side, all are equipped with operating cavity, be equipped with adjusting assembly in operating cavity, the utility model solves the drawback that only power off but cannot prevent liquid leakage in traditional scheme, greatly curb the leakage range expansion, avoided the risk intensification of secondary electrical short circuit, equipment internal corrosion damage, environmental pollution, ground wet slip causes personal accident and potential fire hazard because of coolant continuous seepage, significantly improved the intrinsic safety and fault controllability of system.