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36results about How to "Prevent electrical breakdown" patented technology

Graphene-based high-voltage pulse thin-film capacitor

The invention discloses a graphene-based high-voltage pulse thin-film capacitor. The capacitor is composed of more than one dielectric layer and more than one graphene electrode layer in an alternative laminating manner. The graphene electrode layer is composed of a metalized film and a graphene film which are connected with each other. According to the graphene-based high-voltage pulse thin-film capacitor, the graphene film is added on the surface of the capacitor electrode. An excellent surface heat conduction performance of the graphene film can be utilized for quickly transferring heat of electrodes between the capacitor layers out of the electrodes of the capacitor, thereby remarkably reducing heat accumulation of the electrodes in the capacitor, realizing temperature control and heat management to the electrodes in the capacitor, reducing electric field strength loss of the capacitor caused by temperature increase, stabilizing stored energy of the pulse capacitor, and realizing small size and high capacity of the capacitor.
Owner:NANJING UNIV OF SCI & TECH

Crude oil emulsion fluid electrostatic coalescer

The invention discloses a crude oil emulsion fluid electrostatic coalescer. The crude oil emulsion fluid electrostatic coalesce comprises a barrel which is of a cylindrical structure, wherein a grounding terminal inlet pipeline and an outlet pipeline are arranged on the outer side surface of the barrel; the two ends of the barrel are connected with an insulating end enclosure and end surface sealing covers; cable introducing holes which are used for introducing high / low-voltage cables and are connected with multiple high / low-voltage electrodes in the barrel are formed in the two end surface sealing covers respectively; a low-voltage electrode is arranged on an axis, and a high-voltage electrode is wound outside the axis in a concentric manner, and the high-voltage electrode is closest to the barrel housing; a plurality of foldout supporting plates for guiding the crude oil emulsion fluid and supporting high / low-voltage electrodes are arranged on the inner part of the barrel. The crude oil emulsion fluid electrostatic coalesce has the advantages of being compact in structure, small in floor space and convenient to dismount, is suitable for an oil-water separating process on the sea and improving original oil-water separating equipment; uneven electric fields are introduced to achieve good coalescence effect on uncharged liquid drops in the emulsion fluid with low moisture content, which is difficult to treat by dipole coalescence and electrophoresis coalescence through normal electric dehydrating equipment, so that the treatment capacity of electrostatic coalescence equipment is strengthened.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Medium-voltage electric distribution apparatus

The invention relates to a electric distribution apparatus comprising a circuit breaker device or interrupting device which is named as a first device, and an electric isolation device named as a second device. The first device and the second device are connected in parallel and occupying open and closed positions of a switching device. The two electric devices may use a first position and a second position. The opening and closing of the first and the second electric devices are controlled by the first electric device. When the switching device is moved from the closing position to the opening position, the contact of the isolation device is firstly opened. Arc and arc voltage generate between contacts so that current is switched to the breaker device or interrupting device. before the contact of the breaker device or interrupting device is opened, the contacts are open till the ample gap generates between contacts of the isolation device. Therefore, after contacts of two devices are closed, when transient recovery voltage is established, any subsequent dielectric breakdown at the position of the isolation device is prevented.
Owner:SCHNEIDER ELECTRIC IND SAS

High-thermal-conductivity and high-insulation thermoplastic resin composition as well as preparation method and application thereof

InactiveCN110862695AImprove insulation performanceRealize storage at room temperatureEpoxyDielectric
The invention relates to the technical field of integrated circuit interconnection dielectric materials, and in particular, relates to a high-thermal-conductivity and high-insulation thermoplastic resin composition as well as a preparation method and an application thereof. The invention discloses the preparation method of the high-thermal-conductivity and high-insulation thermoplastic resin composition. The preparation method comprises the following steps: (1) preparation of carboxyl-terminated polysiloxane modified epoxy resin; (2) preparation of dendritic three-dimensional graphene oxide; and (3) preparation of the high-thermal-conductivity and high-insulation thermoplastic resin composition: adding the dendritic three-dimensional graphene oxide into the carboxyl-terminated polysiloxanemodified epoxy resin, and mixing and stirring to obtain the high-thermal-conductivity and high-insulation thermoplastic resin composition. The invention aims to provide the preparation method of thehigh-thermal-conductivity and high-insulation thermoplastic resin composition; the resin composition prepared by the preparation method has high thermal conductivity and high insulation, the thermal conductivity coefficient can be adjusted according to a formula, and the resin composition has good thermal conductivity, excellent insulation performance, and wide application range.
Owner:广东莱尔新材料科技股份有限公司

An explosion-proof film capacitor which prevents electric breakdown between pole shells

An explosion-proof film capacitor which prevents electric breakdown between pole shells comprises an aluminum case (10), an explosion-proof cover plate assembly (40) and a capacitor body arranged in the aluminum case (10). The capacitor body comprises a lower positioning sleeve (20), an upper positioning cover (30) and a capacitor core (2) wound on a core rod (1) arranged between the lower positioning sleeve (20) and the upper positioning cover (30); The capacitor core (2), the lower positioning sleeve (20) and the upper positioning cover (30) are poured with an impregnating agent (3). The invention can improve the eligibility rate of the electrode shell withstand voltage and remarkably reduce the manufacturing cost of the capacitor.
Owner:钱立文

Method and equipment for radiating ion beam, related method and its equipment

When ion beam 14 is irradiated onto a substrate 2 to conduct processing such as ion injection, plasma 30 emitted from a plasma generating device 20 is supplied to a portion close to the substrate 2 to suppress electric charging on a substrate surface caused by ion beam irradiation. A ratio of IE / IB is kept at a value not lower than 1.8, a ratio of II / IE is kept at a value not lower than 0.07 and not higher than 0.7, wherein IB is an electric current of the ion beam 14 irradiated onto the substrate 2, II is an ion current expressing a quantity of ions in the plasma 30 emitted from the plasma generating device 20, and IE is an electron current expressing a quantity of electrons in the plasma 30.
Owner:NISSIN ION EQUIP CO LTD

Bottom water tank for irregular casting device

The invention relates to a bottom water tank for an irregular casting device. The bottom water tank is characterized by comprising a bracket and a working plate, wherein the working plate is arranged on the bracket; cooling clamps are arranged on two sides of the working plate; a water inlet tube is arranged on one side of the bracket; a water outlet tube is arranged on the water inlet tube; a crystallizer is arranged above the working plate. Compared with the prior art, the bottom water tank has the advantages that firstly, the bottom water tank is smart in overall structural design, compact in structure and high in practicability; secondly, good contact of the cooling clamps and the crystallizer can be ensured, electric breakdown can be avoided, and a good casting effect can be ensured; thirdly, the technical scheme is relatively low in cost and convenient in large-scale popularization and application.
Owner:JIANGSU MARITIME INST

Rubber dipping type insulation gloves and manufacture method thereof

The invention relates to a pair of rubber dipping type insulation gloves and a manufacture method thereof. A dipping liquor comprises the following raw materials in parts by weight: natural rubber, zinc oxide, sulphur, an accelerant, an anti-aging agent, stearic acid and light calcium carbonate. The manufacture method comprises the steps: dissolving plastified rubber and the raw materials into liquid after being conventionally mixed; performing dipping for multiple times in the liquor according to a certain speed by using a glove model through dipping equipment, and drying after dipping; and sulfurizing according to a designed temperature, pressure and time; finally, testing a voltage, verifying and packaging. The pair of rubber dipping type insulation gloves has the advantages of attractive appearance, good cold resistance, good water repellency, good insulation, safety and reliability, and accords with the requirement of IEC60903 (International Electrotechnical Commission).
Owner:TIANJIN SHUANGAN LABOR PROTECTION RUBBER

Multifunctional multilayer insulated wire

The invention relates to a multifunctional multilayer insulated wire, which comprises a copper lead, a bonding layer, an insulating layer, a flame-retardant layer and a protecting layer, wherein the bonding layer is coated outside the copper lead, the insulating layer is covered outside the bonding layer, the flame-retardant layer is covered outside the insulating layer, and the protecting layer is covered outside the flame-retardant layer. The insulated wire can be widely used in the high-frequency wires of power supplies and transformers.
Owner:SHANGHAI XIANGXIANG ELECTRONICS +1

Semiconductor device

The invention provides a semiconductor device comprising a substrate having a first region and second regions, the first region being located between two adjacent second regions; two sub drain regions located in the first region of the substrate; a dummy structure positioned on the substrate between the two adjacent sub drain regions; a source region located in the second region of the substrate; a gate structure positioned on the substrate between the first region and the second regions. The ESD capacity of the device is improved through the dummy structure, an SAB photomask in the prior art is not needed, a new technological process does not need to be introduced, and the dummy structure can be directly and synchronously formed in the manufacturing process, so that the manufacturing cost of the device is reduced.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Horn antenna

The invention relates to a horn antenna which comprises a feed source and a horn and is characterized in that multiple metamaterial media layers are filled in the horn, each metamaterial media layer has the same dielectric constant, the multiple metamaterial media layers have different dielectric constants, and each metamaterial media layer is composed of a plurality of metamaterial units. The horn antenna is simple in structure, low in manufacture price, high in gains, good in directionality, strong in pressure resistance, free of electric breakdown, small in structure, light in weight and flexible.
Owner:KUANG CHI INST OF ADVANCED TECH +1

A three-phase electrostatic coalescence separator for oil, gas and water

The invention discloses an oil-gas-water three-phase electrostatic coalescence separator, which comprises a separator main body, a gas-liquid separation module, a high-water coalescence module, a low-water coalescence module, a power supply and a control system; a gas-liquid separation module, a high water The coalescing module, low water content coalescing module, power supply and control system are located inside the main body of the separator; the gas-liquid separation module is vertically inserted into the left side of the horizontal cylinder, and the high water content coalescence module is located on the right side of the gas separation module; the low water content coalescence The junction module is located on the right side of the high water content coalescing module, and the power supply and control system is located on the right side of the weir plate. The oil, gas and water three-phase electrostatic coalescence separator of the present invention realizes the four-stage separation design of oil, gas and water through the gas-liquid separation module, the high water content coalescence module, the low water content coalescence module and the gravity sedimentation module in the horizontal cylinder body, which greatly simplifies the design on the one hand Separation technology realizes intensive separation; on the other hand, it can handle oil-water emulsions with a wide range of water content and significantly improve the separation effect.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Composite refrigeration method and device for high-power electric semiconductor device

The invention discloses a compound cooling method for a high-power power semiconductor device, pertaining to the field of semiconductor devices. A heat pipe with groups of radiating ribs / wing panels is arranged on a radiating module, a low-temperature cooling gas is forcedly / directly transmitted to various groups of radiating ribs / wing panels, and the cooling gas is utilized to constitute electrical insulating layers between air supply air distribution ducts and various groups of radiating ribs / wing panels. The invention further provides a compound cooling device which utilizes the method andis provided with a combined air-conditioning box body, an air processing device and an air suction / exhaust pipeline, an air inlet and an air outlet are arranged on the air-conditioning box body, the air processing device is connected with the air suction / exhaust pipeline, the air outlet end thereof is connected with the air inlet of the air-conditioning box body, the air outlet of the air-conditioning box body is connected with the air suction / exhaust pipeline, an air supply main pipe is arranged at the air inlet in the air-conditioning box body, and the separate air supply air distribution ducts are respectively correspondingly arranged between the air supply main pipe and the various groups of radiating ribs / wing panels. The compound cooling method overcomes the shortcomings of the traditional cooling modes, and the system structure is simpler.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

Integrated circuit testing method

The invention provides an integrated circuit testing method including (1) providing an integrated circuit testing structure; (2) testing a single trench isolation structure for a first dielectric parameter; (3) testing a single semiconductor device for a second dielectric parameter; (4) testing adjacent single trench isolation structures and the single semiconductor device for a third dielectric parameter; and (5) comparing the first, second and third dielectric parameters and evaluating the single trench isolation structure.
Owner:广西南宁市沃威机电设备有限公司

An electric dust removal device

The invention discloses an efficient electrical dust collector. The dust collector comprises a tank body, anode plates, corona wires, a rapping device, a motor and a plurality of ash buckets, wherein one end of the tank body is provided with an air inlet, and the other end of the tank body is provided with an exhaust port, the motor and a plurality of suspension devices are arranged above the tank body, a plurality of insulating hangs are arranged below the suspension devices and the corona wire is suspended below each insulating hang; a transformer is mounted at one side of each suspension device, and the transformers are connected with the corona wires; the anode plate is correspondingly arranged below each suspension device, and a plurality of corona wires are arranged in the anode plates, the rapping device is arranged at one sides of the anode plates, and the rapping device is connected with the motor; the plurality of ash buckets are arranged at the bottom of the tank body, one ash bucket is correspondingly arranged below each anode plate, the lower end of each ash bucket is provided with a cinder valve, the ash buckets are communicated with an ash storage tank through flanges, and an opening in the upper end of each ash bucket is communicated with the tank body. The efficient electrical dust collector disclosed by the invention is relatively high in dust removal rate and capable of preventing the secondary pollution.
Owner:ZHEJIANG ZHUJI LIDA ENVIRONMENTAL PROTECTION EQUIP

Long-term pressure-resistant insulating angle iron for turnout installation device

The invention belongs to the technical field of railway turnout switching equipment installation and provides turnout installation device long-term pressure-resistant insulating angle iron. The turnout installation device long-term pressure-resistant insulating angle iron comprises a fixed iron core and a connecting iron core, wherein the fixed iron core is of a linear structure; the connecting iron core is arranged at one end of the fixed iron core and is in an obtuse angle broken line shape; a connecting hole is formed in the connecting iron core; fixing holes are formed in the two ends of the fixed iron core; cured layers are arranged on the fixed iron core and the inner walls of the two fixing holes in a mold pressing mode; and the outer sides of the cured layers are coated with plasticizing layers in an injection molding mode. According to the turnout installation device long-term pressure-resistant insulating angle iron, the affinity among the iron cores, the cured layers and the plasticizing layers can be greatly improved through the layer structure; water ingress and gas production between the two adjacent layers are avoided; electric breakdown is prevented; electrochemical reaction is eliminated; and the service life is greatly prolonged.
Owner:郑州路宏铁路器材有限公司

High-voltage electrode flange for switching between high-vacuum chamber and high-pressure chamber

The invention discloses a high-voltage electrode flange for switching between a high-vacuum chamber and a high-pressure chamber. The high-voltage electrode flange comprises a stainless steel flange cylinder, a potting epoxy resin insulator, an insulating ceramic body and an oxygen-free copper electrode which form a coaxial structure, the high-vacuum chamber with a vacuum degree range of 10<-2>-10<-5>Pa and the high-pressure chamber with a pressure value range of 0.2-0.4MPa can be mutually isolated by the structure, and the problem of high voltage such as creepage, glow discharge and corona canbe effectively solved when 20-130KV direct-current high voltage is conducted by the oxygen-free copper electrode by the aid of a banana jack and an anti-creeping electric ring. The high-voltage electrode flange is reasonable in design, moderate in size, easy to manufacture, safe, reliable and suitable for connection of standard flange connectors of various high-vacuum chambers and high-pressure chambers, raw materials are easily acquired, the stainless steel flange cylinder, the potting epoxy resin insulator, the insulating ceramic body, polytetrafluoroethylene sealants and the oxygen-free copper electrode are hermetically connected in an overlapped manner, so that the gas tightness of the whole electrode flange is greatly enhanced, and the high-voltage electrode flange can continuously work in high-voltage feeding links in accelerator applications.
Owner:UNIV OF SCI & TECH OF CHINA

Packaging structure of igbt chip subunit and manufacturing method thereof

The present application provides an IGBT chip sub-unit packaging structure and a manufacturing method thereof. The packaging structure includes an IGBT chip, a gate arranged on the IGBT chip, and an electrode connected to the upper surface emitter and the lower surface collector of the IGBT chip respectively. The connected upper molybdenum sheet and lower molybdenum sheet and the encapsulator, wherein the emitter on the upper surface is coated with silicon rubber along the terminal area of ​​the IGBT chip. Through the packaging structure of the present application and its manufacturing method, the terminal structure of the IGBT chip can be protected by passivation, which avoids electrical breakdown caused by contamination of the chip terminal by external factors, and improves the voltage resistance of the chip and the reliability of long-term work. sex.
Owner:ZHUZHOU CRRC TIMES SEMICON CO LTD

A Segmented Electromagnetic Coupled Separator for Treating Oilfield Produced Fluid

A segmented electromagnetic coupling separator for treating oilfield produced fluid, including a separator tank, a gas-liquid separation module, a high water content electromagnetic synergy dehydration module, a low water content electric dehydration module, a power supply system, a liquid level controller, a gas Outlet, skimmer and water outlet. The separator tank is placed horizontally, and the gas-liquid separation module, high-water electromagnetic synergy dehydration module, low-water electric dehydration module and liquid level controller are placed inside the separator body in sequence. The gas-liquid separation module is composed of an inlet rectifier tube and a baffle, the high-water electromagnetic synergy dehydration module is composed of magnets and electrodes, and the low-water electric dehydration module is composed of several vertical electrode plates placed in parallel. The present invention realizes the four-stage separation design of oil, gas and water through the above three modules and the gravity settling module in the horizontal cylinder, and has the advantages of compact structure, high separation efficiency and thorough separation. In addition, it can also handle oil-water emulsions with a wide range of water content, greatly improving the dehydration rate of crude oil.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

A method for testing an integrated circuit

The invention provides an integrated circuit testing method including (1) providing an integrated circuit testing structure; (2) testing a single trench isolation structure for a first dielectric parameter; (3) testing a single semiconductor device for a second dielectric parameter; (4) testing adjacent single trench isolation structures and the single semiconductor device for a third dielectric parameter; and (5) comparing the first, second and third dielectric parameters and evaluating the single trench isolation structure.
Owner:广西南宁市沃威机电设备有限公司

Semiconductor device

The invention provides a semiconductor device comprising a substrate having a first region and second regions, the first region being located between two adjacent second regions; three sub drain regions located in the first region of the substrate; two dummy structures respectively positioned on the substrate between the two adjacent sub drain regions; a source region located in the second regions of the substrate; a gate structure positioned on the substrate between the first region and the second regions. The ESD capacity of the device is improved through the dummy structure, an SAB photomask in the prior art is not needed, a new technological process does not need to be introduced, and the dummy structure can be directly and synchronously formed in the manufacturing process, so that the manufacturing cost of the device is reduced.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Rubber-impregnated insulating gloves and manufacturing method thereof

The invention relates to a rubber-impregnated insulating glove and a manufacturing method thereof. The impregnating liquid includes the following raw ingredients proportioned by parts: natural rubber, zinc oxide, sulfur, accelerator, anti-aging agent, stearic acid and light calcium carbonate , the manufacturing method is to melt the masticated rubber and the above-mentioned raw ingredients into a liquid after conventional mixing; use a glove model to dip the above-mentioned liquid several times at a certain speed through the dipping equipment, and then dry it after dipping; Vulcanization treatment at the designed temperature, pressure and time: final voltage test, inspection, packaging. The advantages are: beautiful, good cold resistance, good water repellency, good insulation, safe and reliable, and meet the requirements of the IEC60903 standard.
Owner:TIANJIN SHUANGAN LABOR PROTECTION RUBBER

horn antenna

The invention relates to a horn antenna which comprises a feed source and a horn, wherein metamaterial media with refractive index distribution are filled in the horn, each point in the metamaterial media is provided with a metamaterial unit, and each metamaterial unit comprises an artificial microstructure and a unit base material for the artificial microstructure to be attached to. The horn antenna is simple in structure, low in manufacture price, high in gains, good in directionality, strong in pressure resistance, free of electric breakdown, small in structure, light in weight and flexible.
Owner:KUANG CHI INST OF ADVANCED TECH +1

Horn antenna

The invention relates to a horn antenna which comprises a feed source and a horn, wherein metamaterial media with refractive index distribution are filled in the horn, each point in the metamaterial media is provided with a metamaterial unit, and each metamaterial unit comprises an artificial microstructure and a unit base material for the artificial microstructure to be attached to. The horn antenna is simple in structure, low in manufacture price, high in gains, good in directionality, strong in pressure resistance, free of electric breakdown, small in structure, light in weight and flexible.
Owner:KUANG CHI INST OF ADVANCED TECH +1

Piezo-electrical actuator module and fuel injection valve

The invention relates to a piezo-electrical actuator module (2) in particular for fuel injection valves of fuel injection systems for internal combustion engines, comprising an actuator body (3) and at least one transition piece (4). The transition piece (4) has a contact surface (25). According to the invention, the actuator body (3) contacts the contact surface (25) of the transition piece (4) with an end face (26) on one end (28) of the actuator body (3). The transition piece (4) has a frame (6) which surrounds the contact surface (25). The frame (6) positions the actuator body (3) at the end (28) thereof on all sides on the contact surface (25). A reliable electrical contacting of outside electrodes (16) of the actuator body (3) is thus possible, since a relative movement between the actuator body (3) and the transition piece (4) is prevented. The invention additionally relates to a fuel injection valve (1) having such a piezo-electrical actuator module (2).
Owner:ROBERT BOSCH GMBH

High-power TE-TEM microwave mode converter

The invention relates to the technical field of microwave mode converters, and in particular relates to a high-power TE-TEM microwave mode converter which is used for solving the problems of insufficient power capacity and high manufacturing difficulty of a TE-TEM mode converter in the prior art. The high-power TE-TEM microwave mode converter comprises a central waveguide, a microwave feed-in waveguide, a microwave sliding circuit breaker, a coaxial output, a coaxial short-circuit surface and a coaxial inner conductor; the coaxial short-circuit surface comprises a centering ring installed in the coaxial inner conductor; a short-circuit surface outer conductor is installed on the centering ring; a coaxial downward-extending section is installed between the short-circuit surface outer conductor and the central waveguide; and a microwave choking coil which is not in contact with the coaxial inner conductor is installed between the coaxial downward-extending section and the short-circuit surface outer conductor. The coaxial downward extending section, the short-circuit surface outer conductor and the end face of the microwave choking coil are in contact, the electric conductivity is good, the sparking phenomenon is avoided, the power capacity of the converter can be improved, meanwhile, the converter can be divided into a plurality of parts during machining, and therefore the manufacturing difficulty is greatly reduced.
Owner:四川三三零半导体有限公司
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