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106 results about "Electrical Shorting" patented technology

An electrical short happens when an accidental path is created in a circuit, generating a connection where there shouldn’t be one. It's usually very obvious when one happens as a short will reveal itself by fuses being repeatedly blown or the circuit breaker tripping repeatedly.

Immersed heat dissipation system with liquid nitrogen as cooling medium and integrated circuit assembly

The invention relates to the technical field of chip heat dissipation, and provides an immersed heat dissipation system with liquid nitrogen as a cooling medium and an integrated circuit assembly. In an immersed heat dissipation system with liquid nitrogen as a cooling medium, huge heat generated by a high-power-density chip under an extreme working condition can be efficiently absorbed and taken away under the extremely low working temperature and the large phase change heat absorption capacity, the heat transfer limit of a traditional cooling technology is broken through, and deep cooling of the chip is achieved; meanwhile, the liquid nitrogen is non-conductive and stable in chemical property, the electrical short circuit risk and physical and chemical corrosion problems caused by leakage of the cooling working medium are thoroughly eliminated, and the long-term operation reliability and safety of the immersed heat dissipation system with the liquid nitrogen as the cooling medium are remarkably improved. Therefore, stable operation of the chip under high load is guaranteed, physical damage and performance frequency reduction caused by overheating are avoided, and even favorable conditions are created for safe and efficient operation of the chip under higher working frequency.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Wiring terminal

The utility model relates to a wiring terminal, and relates to the technical field of cable fittings, the wiring terminal comprises a wiring part, one end of the wiring part is connected with a mounting part, the other end is provided with a wiring hole for wiring, the wiring part is provided with a welding ring groove at one side of the opening of the wiring hole, and the welding ring groove is communicated with the wiring hole. An opening of the welding ring groove is larger than an opening of the wiring hole, a welding ring is arranged in the welding ring groove, and the inner diameter of the welding ring is larger than or equal to the inner diameter of the wiring hole. Through the arrangement of the welding ring, after a wire is installed in the wiring hole, a worker can further fix the joint part of the wire to the end part of the wiring part through the welding ring, and meanwhile, the molten welding ring can block the joint part, so that the joint part of the wire can be better protected, and meanwhile, the entering of water vapor can be reduced; and contact resistance increase and electrical short circuit accidents caused by oxidation after the wire is in contact with air are prevented.
Owner:HONGQI GRP ELECTRIC POWER FITTINGS

Multilayer composite fireproof shielding busbar and preparation method thereof

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.
Owner:BEIJING VICTORY ELECTRICAL TECH DEV CO LTD

Integrated circuit (IC) package including two substrates and vertical interconnects coupling the two substrates, the vertical interconnects comprising a metal ball and metal pin combination to address an increased distance between substrates

Aspects disclosed include an integrated circuit (IC) package including two substrates and vertical interconnects coupling the two substrates, the vertical interconnects comprising a metal ball and metal pin combination to address an increased distance between substrates. The vertical interconnects are disposed in a mold layer between the two substrates. The mold layer also includes a die, a plurality of metal pins, and a plurality of metal balls coupled to the plurality of metal pins to form the vertical interconnects. Larger distances between the two substrates are desirable when a die's thickness is increased to increase thermal dissipation from the die. As an example, by utilizing a plurality of metal ball and pin combinations as vertical interconnects, larger distances between the two substrates may be advantageously achieved with reduced risk of electrical shorting between vertical interconnects and without compromising pitch between vertical interconnects.
Owner:QUALCOMM INC

Aluminum conductor electrical melting mark identification method based on electron backscatter diffraction (EBSD)

The invention relates to the technical field of material microscopic analysis, and particularly discloses an aluminum conductor electrical melting mark identification method based on electron back scattering diffraction. Aiming at the core defects that the existing aluminum melting mark identification technology depends on morphological characteristic analysis and cannot distinguish short-circuit melting and fire thermal damage, the invention innovatively proposes the following steps: (1) obtaining a three-dimensional crystallographic parameter group of a grain size distribution discrete coefficient (DSC), a high-angle grain boundary (HAGBgt; 15 degrees) proportion and a cubic texture strength proportion of a melting mark area through EBSD scanning; (2) a melting mark classification model based on a random forest algorithm is constructed, quantitative distinguishing of electrical short circuit melting marks (DSCgt, 0.8, Cube% lt, 15%) and fire disaster hot melting marks (DSClt, 0.5, Cube% gt, 40%) is achieved, and the classification accuracy rate reaches 98.2%. And surface amorphous layer interference is further eliminated through argon ion polishing pretreatment (with an inclination angle of 3-5 degrees for 18 min), so that the signal-to-noise ratio of the EBSD Kikuchi pattern quality map is increased by 3 times. According to the invention, the technical problem of poor objectivity of melting mark type judgment is solved, and a high-precision analysis tool is provided for electrical fire evidence identification.
Owner:SHANGHAI FIRE RES INST OF MEM

Composite protection intelligent cable for mountain rail transit

The utility model discloses a composite protection intelligent cable for mountain rail transit, which belongs to the technical field of cables and comprises a circular copper conductor, and a conductor semi-conductive shielding layer, an insulating layer, an insulating semi-conductive shielding layer and a semi-conductive water-blocking buffer layer are sequentially arranged outside the circular copper conductor. A metal shielding layer is arranged in the semi-conductive water-blocking buffer layer, and a waterproof layer, an oxygen barrier layer, an armor layer, an alkali-free glass fiber tape wrapping layer, an outer sheath layer and a composite sheath layer are sequentially arranged outside the semi-conductive water-blocking buffer layer; and a temperature measuring and communication optical cable is arranged in the metal shielding layer. The 35kV flame-retardant B1-level composite protection intelligent cable for mountain rail transit has wear-resistant, rat-proof, termite-proof and ultraviolet-proof additional performance, a temperature-sensing detection optical cable is arranged on a metal shielding layer, the whole line is effectively monitored, management of a master console is matched, when the temperature exceeds the set temperature, automatic alarm, power-off protection and line switching are achieved, and the service life of the cable is prolonged. Fire situations such as electrical short circuit are avoided, and safe and reliable operation of rail transit lines is guaranteed.
Owner:XIAN XIDIANGUANG CABLE CO LTD +1

Two-phase flow cooling enclosure for airborne electronic equipment

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.
Owner:JIANGSU HUACHUANG MICROSYSTEM CO LTD

Press fitting system and press fitting method suitable for laser diode

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.
Owner:HANGZHOU XINJUNZHE MICROELECTRONICS CO LTD

Pollution monitoring sensor system for high power electricity devices

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
Owner:SIEMENS ENERGY GLOBAL GMBH & CO KG

Drilling device, power distribution cabinet drilling equipment and drilling method

The drilling device, the power distribution cabinet drilling equipment and the drilling method are applied to the field of power distribution cabinet machining, and the drilling device comprises a trepanning mechanism and a collecting mechanism which are oppositely arranged; the trepanning mechanism is provided with a first adsorption part, and the collecting mechanism is provided with a second adsorption part matched with the first adsorption part; the distribution positions of the first adsorption pieces are arranged on one side of a to-be-perforated area of a target power distribution cabinet, and the number of the first adsorption pieces is designed to be that when the perforating mechanism and the collecting mechanism are connected to the to-be-perforated area, deformation generated by the to-be-perforated area is matched with stress of the to-be-perforated area; the second adsorption piece is arranged on the other side, corresponding to the first adsorption piece, of the to-be-perforated area. Through cooperative work of the tapping mechanism and the collecting mechanism, pollution to the internal environment of the power distribution cabinet due to chipping scattering is avoided, potential safety hazards such as electrical short circuit caused by chippings are eliminated, and the safety of installation and maintenance of the power distribution cabinet is remarkably improved.
Owner:INNOVATION & INNOVATION CENT OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +2

Capacitor compensation cabinet with isolated bus chamber

The invention discloses a capacitor compensation cabinet with an isolation bus chamber, and belongs to the technical field of capacitor compensation cabinets. The cabinet door is hinged to the front surface of the cabinet body; a cooling pipe A and a cooling pipe B are arranged in the cabinet body; and a ventilation opening is formed in one side of the cabinet door. The dual functions of efficient heat dissipation and automatic condensate water removal are achieved through mechanical linkage. Firstly, the double cooling design of the cooling pipe A and the cooling pipe B remarkably reduces the temperature of air entering the cabinet body, meanwhile, power of the draught fan is converted into reciprocating motion of the scraping ring and the scraping plate through worm and gear transmission, condensate water on the outer walls of the cooling pipes is automatically scraped off, and electrical short circuit or element corrosion caused by dripping of water drops is effectively prevented. And secondly, the air flow distribution is optimized by the air expansion cover, the heat dissipation uniformity is ensured, the directional collection and discharge of the condensate water are realized by the inclined collection frame and the bottom water outlet, and corrosion or mould breeding caused by accumulated water is avoided.
Owner:ANHUI TIANJIN ENERGY TECHNOLOGY CO LTD

Discharge adapter

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.
Owner:VOLEX INTERCONNECT SYST (SUZHOU) CO LTD

Double-layer suspension type assembly fixing structure

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.
Owner:XIAMEN COSTCO ELECTRONIC IND CO LTD

Low-voltage transformer area electrical short circuit arc detection processing method and system

The invention relates to the technical field of circuit detection, and discloses a low-voltage transformer area electrical short circuit arc detection processing method and system. According to the invention, aiming at the condition that the current abnormity duration is relatively long, even if the voltage and the frequency spectrum do not display typical arc signals, the abnormal conduction state can be confirmed by strictly comparing the time when the current exceeds the normal range, so that misjudgment caused by instantaneous interference is avoided. It is worthy of noticing that due to the fact that the temperature sensor has the problems of response lag and uneven area distribution when monitoring the electric arc, when continuous high current does not have sudden temperature increase and voltage and frequency spectrum abnormity, it is directly judged that the electric arc is not generated, and the processing strategy effectively prevents unnecessary protection actions caused by temperature errors. The advantages of various sensing data are fully integrated, and through a layer-by-layer verification and mutual evidence mode, the short circuit hidden danger can be found in time, and the reliability of fault judgment and the overall safety of the system can be remarkably improved.
Owner:山东数源新电力科技有限公司

Systems and methods for electrical short detection

To provide methods and systems of detecting short circuits in an electrical system, such as a dynamic braking grid of a vehicle.SOLUTION: The methods and systems measure a characteristic of an electrical current that is conducted through one or more resistive elements of an electrical system 104. The electrical current is supplied to the electrical system from a power source 102 as an applied voltage. A resistance change signal representative of a change in one or more electrical resistances of the one or more resistive elements is determined. The resistance change signal is based at least in part on a difference between the characteristic of the electrical current that is measured and a low pass filtered value of one or more of the characteristic of the electrical current that is measured or the applied voltage supplied by the power source. A short circuit event is identified based at least in part on the resistance change signal.SELECTED DRAWING: Figure 1
Owner:TRANSPORTATION IP HOLDINGS LLC

Method for simulating and analysing at least one electrical short-circuit in an electrical wiring interconnection system for a vehicle, and method for designing and manufacturing such a system

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.
Owner:AIRBUS OPERATIONS (SAS)

Water-cooled grinding wheel

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.
Owner:CHONGQING AXLER TOOLS CO LTD

Alternating current vacuum contactor terminal structure capable of preventing mechanical jamming

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.
Owner:WUXI HAIBANG MECHANICAL & ELECTRICAL MFG CO LTD

Copper bar protection assembly and battery pack

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.
Owner:SVOLT ENERGY TECHNOLOGY CO LTD

Humidifying explosion-proof valve

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.
Owner:HUIZHOU XINYU TECH CO LTD

Protective structure of anti-explosion dehumidifier

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.
Owner:SICHUAN ZIREN PHARMA

Inspect the wind turbine blade

A method for inspecting a wind turbine blade. The wind turbine blade includes an electrothermal heating element and a surface protection layer. The method includes: exposing a test point of the electrothermal heating element; contacting the test point to establish an electrical connection between the test point and a sensor; and electrically connecting the sensor to the surface protection layer. Operating the sensor to measure a resistance value indicative of the resistance between the test point and the surface protection layer. Analyzing the resistance value to determine the condition of the wind turbine blade. The present invention provides a method for inspecting a wind turbine blade that enables detection of damage or defects that are difficult to detect by visual inspection or conventional non-destructive testing techniques. For example, the resistance value can give an indication of the presence of an electrical short circuit between the heating element and the surface protection layer.
Owner:VESTAS WIND SYSTEMS AS

Light-emitting diode packages for environmental indication

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.
Owner:CREELED INC

Wildlife Guard for Cutout Fuse Holder

ActiveUS20250268244A1Animal repellantsHot sticks switchesWildlifeFuse (electrical)
A wildlife guard for protecting an electrical distribution cutout fuse holder from electrical shorts caused by wildlife is disclosed. The guard includes a first body piece pivotally connected to a second body piece, thereby creating a cover having an open bottom and an open front for receiving the cutout fuse holder and the insulator. A spring biases the cover to a closed position. The wildlife guard also includes a releasable trigger including a first trigger arm connected to a second trigger arm. The releasable trigger operates to hold the cover in the open position until contacted by the cutout fuse holder, which converts the cover to the closed position. The wildlife guard also includes spikes attached to the inner surfaces of the body pieces that impede wildlife from crawling under the cover.
Owner:CENT MOLONEY LLC

Semiconductor device and methods of formation

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.
Owner:TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD

Bus duct beneficial to heat dissipation

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.
Owner:JIANGSU HUAKUN ELECTRIC CO LTD

CDU liquid cooling system anti-condensation control method and CDU liquid cooling system

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.
Owner:YUANDI (GUANGZHOU) DIGITAL TECH CO LTD

Fire extinguishing effect testing device for perfluorohexanone fire extinguishing paste

The invention provides a perfluorohexanone fire extinguishing paste fire extinguishing effect testing device which comprises a testing box and a testing mechanism arranged in the testing box. The test mechanism comprises a plurality of temperature sensors arranged in the test box, a fire simulation device, a high-speed camera for acquiring image data of a fire simulation position, and an exhaust assembly for exhausting vaporized perfluorohexanone in the test box; the plurality of temperature sensors are respectively used for collecting the temperature change of the attaching position of the perfluorohexanone fire extinguishing paste, simulating the temperature change of the fire position and the temperature change of different heights in the test box from bottom to top; the fire simulation device comprises a short-circuit fire simulation mechanism used for simulating the short-circuit fire of the electrical equipment and the communication equipment, and an open fire simulation assembly used for simulating open fire. According to the invention, electrical short-circuit sparks and continuous open fire can be accurately simulated, and the accuracy of test data is ensured.
Owner:ANHUI HUOFENG ELECTRIC CO LTD

Immersed cooling energy storage cabinet

The utility model relates to an immersed cooling energy storage cabinet, and belongs to the technical field of cooling energy storage cabinets. Comprising a cabinet body, the upper end of the cabinet body is hollowed out, a plurality of climbing grooves are dug in one side of a box body, two bearing mechanisms are evenly distributed in the box body, an adjusting mechanism is arranged between the bearing mechanisms and located at the lower end of the cabinet body, and a maintenance plate is fixedly connected to the upper end of the cabinet body and located on one side of the climbing grooves. By arranging the climbing grooves and the overhauling plates to be matched with the bearing mechanisms, overhauling treatment can be conveniently conducted in time when the battery module breaks down, the bearing mechanisms can ascend and descend in cooling liquid according to the temperature of the battery module, therefore, the cooling strength is adjusted, and electrical short circuit or other faults caused by excessive cooling of the battery module are avoided.
Owner:JIANGXI ANCHI NEW ENERGY TECH CO LTD