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53results about How to "Avoid tip discharge phenomenon" patented technology
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Pixel structure, display panel and display device
ActiveCN107968105AGood film uniformityImprove uniformitySolid-state devicesSemiconductor devicesDisplay deviceComputer science
The invention relates to a pixel structure, a display panel and a display device. The pixel structure comprises a substrate, a planarization layer and a pixel defining layer, the planarization layer is formed on the substrate, grooves are formed in the planarization layer and are corresponding to pixel electrodes, the pixel electrodes are arranged in the grooves, the pixel defining layer is formedon the planarization layer, pixel pits are arranged in the pixel defining layer, and the pixel electrodes with same color are arranged in the same pixel pit. The planarization layer for driving a circuit is made of hydrophilic material, the pixel electrodes are embedded into the hydrophilic planarization layer, edges of the pixel electrodes can be effectively prevented from protruding to cause short-circuit and tip discharging phenomena by the embedded pixel electrodes, the pixel defining layer is made of a hydrophobic material to form an ink deposition region, so that the fabrication of a first hydrophilic pixel defining layer is omitted, the fabrication process of the pixel structure is simplified, and the fabrication cost is further reduced.
Owner:GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
Multifunctional electromagnetic pulse experiment instrument
InactiveCN101359433AImprove the experimental effectReduce power consumptionEducational modelsHigh-voltage direct currentElectromagnetic pulse
The invention provides a multifunctional electromagnetic pulse experiment instrument which comprises a wide-range adjustable DC power supply composed of two regulated power supplies; the experiment instrument also comprises a multi-frequency direct-reading and ultra-low frequency adjustable pulse frequency controller, a high voltage generator demodulated by the pulse frequency controller, a high voltage ammeter, a movable experimental component and a pulse switch signal output socket; an experiment platform with a high-voltage discharge prevention shell is constructed on the top part of the experiment instrument; the movable experiment component and an adjustable electromagnet are mounted on the platform. The multifunctional electromagnetic pulse experiment instrument not only can output the stable high-voltage direct current, but also can output the pulse high-voltage electricity with adjustable frequency and pulse width, and output the pulse magnetic field or provide independent pulse switch signals for various electromagnets. The multifunctional electromagnetic pulse experiment instrument can be adopted for conducting a plurality of high-voltage static experiments and the experiments in biological, physical and medical fields efficiently and conveniently. The invention provides an electromagnetic pulse experiment instrument which has the advantages of complete functions, convenient application, low cost and practicality for the college teaching and research.
Owner:DEZHOU UNIV
Pixel unit, production method thereof, array substrate and display device
ActiveCN105810719AAvoid mixing colorsImprove color mixingSolid-state devicesIdentification meansDisplay deviceEngineering
The invention provides a pixel unit.The pixel unit comprises a pixel limiting layer, a pixel electrode, a light-emitting layer and a common electrode.The pixel electrode comprises a bottom face and a side face, and the side face extends to the top of the sidewall of a second via hole along the sidewall of the second via hole.The light-emitting layer is formed on the pixel electrode and covers the pixel limiting layer, and the common electrode is formed on the light-emitting layer, covers the light-emitting layer and extends along the top face of the pixel limiting layer.The pixel unit enables the light-emitting layer to scatter much less light to the surrounding, so that color mixing among pixel units is improved greatly, the problem of color mixing caused by light scattering is solved effectively, light-emitting area of the pixel unit is increased greatly, overall brightness is enhanced, mask film cost is reduced to enable cost of the whole technology to be reduced substantially, production capacity is improved and light-emitting effect is improved.
Owner:BOE TECH GRP CO LTD +1
Tantalum ring and preparation method thereof, sputtering device comprising tantalum ring and application thereof
InactiveCN110670031AExtended service lifeLarge specific surface areaVacuum evaporation coatingSputtering coatingAdhesion forceKnurling
The invention provides a tantalum ring and a preparation method thereof, a sputtering device comprising the tantalum ring and an application thereof. The tantalum ring comprises a ring part and patterns arranged on the surface of the ring part, and the patterns are in a conical pit shape, the conical pit-shaped patterns have a large specific surface area, when the conical pit-shaped patterns are applied to a sputtering process, a large amount of sputtering source can be attached on the conical pit-shaped patterns, and a better adhesion force is provided; in addition, the patterns present a conical pit shape, the tops of the conical pits face the interior of the ring part, the bottoms of every two adjacent conical pits are connected, a plane-shaped structure is presented but not a structurewith a pointed end, therefore, the phenomenon of point discharge occurring in a power-on process can be avoided, so that the service life of the tantalum ring is prolonged. The preparation method ofthe tantalum ring is simple, only the knurling treatment is needed, surface sharpening treatment is not needed, and it is ensured that on the premise that the obtained tantalum ring has better adsorption power and adsorption capacity on the sputtering source, and the situation of the point discharge is avoided as well.
Owner:KONFOONG MATERIALS INTERNATIONAL CO LTD
Aluminum clad steel pre-stranded wire and preparation method thereof
ActiveCN102082406AWith strengthPrevent rustDevices for damping mechanical oscillationsAcid washingRubbing
The invention relates to an aluminum clad steel pre-stranded wire for fixing a damper or a spacing bar in power transmission and distribution circuits of the power industry and a preparation method thereof. The aluminum clad steel pre-stranded wire consists of an inner core steel wire, an aluminum clad layer and end face treatment layers, wherein the aluminum clad layer is clad on the periphery of the inner core steel wire, and the end face treatment layers are clad at two ends of the inner core steel wire and the aluminum clad layer or the end of the inner core steel wire. Because the end face of the pre-stranded wire is designed into a duckbilled shape, the pre-stranded wire is bound with a power transmission cable more firmly; because the end faces are provided with the treatment layers, the rust corrosion of the end faces is avoided; because the oxide layer on the end face of the inner core steel wire is cleared by adopting the methods of quick burnishing, polishing and the like, corrosion of acid washing on the aluminum clad layer is avoided, and pollution of acid to the environment is reduced; and a flexible blanket is placed in a container, and a plating aid is coated on the inclined plane of the inner core steel wire by adopting a rubbing method, so corrosion of the aluminum clad layer is reduced.
Owner:JIANGSU TIANNAN ELECTRIC POWER EQUIP
Fixing method of 600MW steam-turbine generator stator coil end
InactiveCN103427527AReduce thermal stressAvoid tip discharge phenomenonWindingsManufacturing dynamo-electric machinesGlass fiberMetallic materials
The invention relates to a fixing method of a 600MW steam-turbine generator stator coil end. According to the method, technological innovation is performed on fixing of the stator coil end, a traditional method of rope binding is broken through, the fixing structure of a large-size overall glass fiber reinforced plastics conical ring, adjustable binding rings and a nose radial bracing ring is adopted, and meanwhile a rigid-flexible fixing structure which is formed at the whole stator coil end and firmly fixed in the radial direction and the tangential direction and is retractable in the axial direction through connection between a non-magnetic spring plate and a stator core end. When a generator operates or breaks down suddenly, a coil bar expands or contracts in the axial direction due to temperature changes, the stator coil end can expand and contract in the axial direction overall, so that thermal stress in coil insulation is effectively slowed down, and the generator is adapted to peak load operation conditions. In the stator coil end fixing structure, all fasteners making contact with a coil are made of non-metallic materials, so that the phenomena of local overheating and point discharge caused by the adoption of metallic materials are avoided.
Owner:HARBIN ELECTRIC MASCH CO LTD
Damper for 1000kV extra-high voltage alternative-current transmission line
ActiveCN101807782AImprove vibration damping effectEffective winding connectionDevices for damping mechanical oscillationsSuspension arrangements for electric cablesAlternating currentHigh pressure
The invention relates to a damper for 1000kV extra-high voltage alternative-current transmission lines in power sector, which comprises a cable clamp, two damper bodies, a steel strand and at least one preformed armor rod. The cable clamp and the steel strand are fixedly connected; the two damper bodies are respectively fixed on the two ends of the steel strand; the preformed armor rod fixes the cable clamp on a power transmission line; the cable clamp is in a sea horse shaped structure; the damper bodies are in a kirsite cucurbit shaped structure; and the connection position of the steel strand and the damper bodies is arranged on the sides of the fixing end damper heads of the damper bodies. Since the cable clamp is provided with a separation nail, the damper can be effectively connected with a power transmission cable; and hangers of the cable clamp, as well as corners of the cable clamp, which are used for fixing conduits, are designed in to an arc shape, thereby avoiding marginaldischarge; since the damper bodies made of kirsite are cast into a cucurbit shape, the specific gravity of the damper bodies is improved and the volume of the damper bodies is reduced; and since the connection between the windward side of the damper head at a cantilever end and the damper heads is designed into an arc shape and the size of the arc is controlled in a certain range, the marginal discharge can be avoided.
Owner:JIANGSU TIANNAN ELECTRIC POWER EQUIP
High-voltage vacuum extinction chamber
ActiveCN103489699AReduce arcingFast arc extinguishingHigh-tension/heavy-dress switchesAir-break switchesExtinctionEngineering
The invention provides a high-voltage vacuum extinction chamber, belonging to the technical field of high voltage electrical apparatus insulation, and aiming at realizing the purposes of increasing a transient turn-off current and extinguishing arc quickly. The high-voltage vacuum extinction chamber comprises a glass shade, and a static end cover board and a movable end cover board which are respectively fixed at two ends of the glass shade, wherein a static conducting rod fixed on the static end cover board and a movable conducting rod connected to the movable end cover board in a sliding manner are arranged in the glass shade; the inner end of the static conducting rod is provided with a static contact, the inner end of the movable conducting rod is provided with a movable contact as big as the static contact; a first static shade barrel covering the static contact and the static conducting rod inside, and a first movable shade barrel which is arranged by being symmetric to the first static shade barrel and covers the movable conducting rod inside, are arranged in the glass shade; the inner side faces of the opposite ends of the first static shade barrel and the first movable shade barrel are provided with spiral turned edges, and when the movable contact is disconnected with the static contact, the movable contact can move into the first movable shade barrel. The high-voltage vacuum extinction chamber can realize quick arc extinguishing and improve the instantaneous current interruption capability of the vacuum extinction chamber.
Owner:ZHEJIANG ZIGUANG ELECTRIC APPLIANCE
Electric connector and components thereof
InactiveCN102195168AAvoid tip discharge phenomenonAvoid security issuesSecuring/insulating coupling contact membersCoupling contact membersButt jointEngineering
The invention relates to an electric connector and components thereof. The electric connector comprises an insulating body provided with a plurality of terminal housing channels and a plurality of conductive terminals housed in the terminal housing channels, wherein each conductive terminal comprises a butt joint portion which can be electrically connected with a butt joint connector, a fixing portion housed in each terminal housing channel in an interferential manner and a mounting portion extending from the fixing portion; the butt joint portion of each conductive terminal is provided with a butt joint tail end arranged at the most significant end; and the electric connector is provided with protection components which cover the butt joint tail ends and are not conductive. The electric connector has the following beneficial effect: point discharge in the butt joint process is effectively avoided through the protection components covering the butt joint tail ends of the butt joint portions of conductive terminals, thus putting an end to various safety problems.
Owner:立全科技(太仓)有限公司
Optical coupler
InactiveCN101819969AIncrease distanceReduce transmission efficiencySolid-state devicesSemiconductor devicesLight sensingLight beam
The invention discloses an optical coupler which comprises a luminous wafer, a light sensing wafer, a transparent internal packaging body and an external packaging body, the luminous wafer and the light sensing wafer are both arranged towards the same direction, the light sensing wafer is used for receiving a beam emitted by the luminous wafer, the transparent internal packaging body wraps the luminous wafer and the light sensing wafer, the external packaging body wraps the transparent internal packaging body, and an interface is formed between the transparent internal packaging body and the external packaging body and is used for reflecting the beam, wherein a reflection curved surface is formed on the surface of the transparent internal packaging body near the luminous wafer and used for reflecting and collecting a first part of a part of the beam to the light sensing wafer.
Owner:EVERLIGHT ELECTRONICS
Optical coupling chip solid-state relay (SSR) integrated circuit and plane type frame
PendingCN109686731AAvoid tip discharge phenomenonEasy to receiveSolid-state devicesElectronic switchingElectricityEngineering
The invention provides an optical coupling chip solid-state relay (SSR) integrated circuit. The optical coupling chip SSR integrated circuit is characterized by comprising a plane type frame, a lightemitting part, a photoelectric receiving part, an internal packaging body and an external packaging body, the light emitting part and the photoelectric receiving part are arranged on the plane type frame, and located in the same plane. According to the optical coupling chip SSR integrated circuit, a traditional three-dimensional packaging structure is changed into an existing planar packaging structure, since the change of the isolation distance D in the planar package structure can be controlled, the optical coupling chip SSR integrated circuit can operate under various operating voltages, and the phenomenon of point discharge is avoided; and in addition, through arrangement of specially designed transparent silica gel and a white plastic package body, a light path is established in the plane through light emitted by an LED luminous tube, and more easily received by a photoelectric receiving tube, the efficiency of light transmission is improved, and performance of whole products is improved.
Owner:WUXI HAOBANG HIGH TECH CO LTD
Shielding cover for lightning arrester test
InactiveCN103926434AImprove electric field distributionImprove breakdown voltageInstrument screening arrangementsEngineeringMechanical engineering
The invention relates to a shielding cover for a lightning arrester test. The top of a cover body is in a hollow hemispherical shape. A hollow cylinder is arranged on the lower portion of the cover body, the radius of the cross section of the hollow cylinder is equal to the radius of the hollow hemispherical shape, and a leading-out hole is formed in the hollow cylinder. The shielding cover is used for improving electric field distribution and improving the breakdown voltage, the point discharge problem is solved, and test demands are met. When the lightning arrester test is carried out, the special shielding cover is placed at the head of a lightning arrester.
Owner:STATE GRID CORP OF CHINA +1
A high-voltage vacuum interrupter
ActiveCN103489699BReduce arcingFast arc extinguishingHigh-tension/heavy-dress switchesAir-break switchesEngineeringHigh pressure
The invention provides a high-voltage vacuum extinction chamber, belonging to the technical field of high voltage electrical apparatus insulation, and aiming at realizing the purposes of increasing a transient turn-off current and extinguishing arc quickly. The high-voltage vacuum extinction chamber comprises a glass shade, and a static end cover board and a movable end cover board which are respectively fixed at two ends of the glass shade, wherein a static conducting rod fixed on the static end cover board and a movable conducting rod connected to the movable end cover board in a sliding manner are arranged in the glass shade; the inner end of the static conducting rod is provided with a static contact, the inner end of the movable conducting rod is provided with a movable contact as big as the static contact; a first static shade barrel covering the static contact and the static conducting rod inside, and a first movable shade barrel which is arranged by being symmetric to the first static shade barrel and covers the movable conducting rod inside, are arranged in the glass shade; the inner side faces of the opposite ends of the first static shade barrel and the first movable shade barrel are provided with spiral turned edges, and when the movable contact is disconnected with the static contact, the movable contact can move into the first movable shade barrel. The high-voltage vacuum extinction chamber can realize quick arc extinguishing and improve the instantaneous current interruption capability of the vacuum extinction chamber.
Owner:ZHEJIANG ZIGUANG ELECTRIC APPLIANCE
Noise reduction electrode of electrostatic precipitator
InactiveCN105435963AReduce working noiseImprove user experienceExternal electric electrostatic seperatorElectrode constructionsNoise reductionSemiconductor
The invention discloses a noise reduction electrode of an electrostatic precipitator. The noise reduction electrode of the electrostatic precipitator comprises a repelling electrode, a collecting electrode and a generating electrode; a collecting electric field is formed between the generating electrode and the collecting electrode, while a repelling electric field is formed between the repelling electrode and the collecting electrode; the collecting electrode is a conductive polar plate, and the repelling electrode is a repelling electrode plate clad with an insulator outer layer or a semiconductor outer layer. According to the noise reduction electrode of the electrostatic precipitator, the insulator outer layer or the semiconductor outer layer is additionally arranged on the repelling electrode, such that the repelling electric field is weakened without a severe discharge phenomenon, and therefore, the working noise of the electrostatic precipitator is reduced and the use experience of a customer is enhanced; the collecting polar plate is still a metal polar plate to ensure the same collecting electric field and to guarantee no declining in dust precipitation effect, and the metal polar plate is convenient to manufacture and low in cost; the repelling electrode plate of the repelling electrode is provided with a heat-shrinkable bushing; the heat-shrinkable bushing enables the repelling electrode to produce an insulation effect, and is low in cost and convenient and fast to manufacture without affecting the structural strength of the repelling electrode.
Owner:SUZHOU BEIANG TECH LTD
Adjustable strain clamp
PendingCN108075422ASimple structureReduce feverAdjusting/maintaining mechanical tensionClamp connectionMechanical engineering
The invention relates to an adjustable strain clamp which is composed of a clamp body, a steel anchor, a flow guide clamping plate and a flow guide clamp. Due to the fact that the flow guide clampingplate is installed on an aluminum pipe in a sleeving mode, can rotate around the aluminum pipe and are fixed after the declination angle of the aluminum pipe and the flow guide clamping plate is adjusted according to the design requirement, a dedicated angle positioning tool does not need to be adopted when the aluminum pipe is connected with a wire in a pressed mode; due to the fact that waist-shaped arc holes are formed in a connecting disc of the flow guide clamp, the angle that the flow guide clamp is relative to the flow guide clamping plate can be adjusted; due to the fact that the flowguide clamp is clamped by two flow guide clamp connection clamping plates when the flow guide clamping plate is connected with the flow guide clamp, the contact resistance is effectively reduced, andheat of the flow guide clamping plate is reduced; and due to the fact that a structure form of a shaft shoulder is arranged between a pull ring and an anchor rod of the steel anchor, the steel anchorcan be conveniently positioned in the aluminum pipe, and the phenomenon that rainwater enters the aluminum pipe from the end of the aluminum pipe is effectively prevented.
Owner:JIANGSU TIANNAN ELECTRIC POWER EQUIP
Contact pedestal and GIS using contact pedestal
InactiveCN109638702AEasy to processEasy to operateSwitchgear arrangementsContacts enclosures/screensElectric fieldEngineering
The invention relates to a contact pedestal and a GIS using the contact pedestal. A circular arc sealing cover for sealing a hand hole is detachably and fixedly assembled at the hand hole; the outer peripheral surface of the circular arc sealing cover is fit with the outer cylinder wall surface of a fixing part; after an operator completes mounting and fixing of the contact pedestal in an operation cavity through the hand hole opened in the cylinder wall of the fixing part of the contact pedestal, the circular arc sealing cover is adopted to seal the hand hole, and thus, after sealing, the outer peripheral surface of the circular arc sealing cover is fit with the outer peripheral surface of the fixing part, the circular arc sealing cover fills the hand hole in the outer peripheral surfaceof the fixing part, the outer peripheral surface of the whole fixing part of the contact pedestal forms a complete circular arc surface, and thus, the problem of over high field intensity to result inbreakdown at the place due to uneven electric field distribution at the hand hole can be effectively avoided.
Owner:HENAN PINGGAO ELECTRIC +2
Tube bus split wire clip
ActiveCN107508226AClose contactIncrease contactClimate change adaptationOpen bus-bar installationsGrip forceStructural engineering
The invention discloses a tube bus split wire clip. The device belongs to the technical field of electric fittings, and solves the problems of weak gripping force, large magnetic loss and poor corona resistance of a tube bus wire clip in the prior art. The tube bus split wire clip comprises a tube bus clip and a number of flexible wire clips. The tube bus clip comprises first and second tube bus clips. Reinforcement devices are arranged in first and second tube bus clips. According to invention, the reinforcement devices are arranged to improves the contact and gripping force of the wire clip and avoid mechanical loss caused by mechanical friction produced by the contact of two parts; an eddy current flux ring is effectively blocked by the reinforcement devices, which avoids magnetic loss; and a support body and a compaction block are in arc transition, which prevents point discharge, and ensures the anti-corona performance of the whole wire clip.
Owner:JIANGSU SHUANGHUI POWER DEV
Semiconductor etching equipment and silicon carbide wafer etching method
ActiveCN112921404ACapable of magnetron sputteringPrevent perpendicularPolycrystalline material growthAfter-treatment detailsCarbide siliconSputtering
The invention discloses a semiconductor etching device and a silicon carbide wafer etching method. The semiconductor etching device comprises a process chamber, the process chamber is internally provided with a magnetron sputtering assembly, and the magnetron sputtering assembly is installed on the side wall of the process chamber and located above a bearing part used for bearing the wafer in the process chamber; and the magnetron sputtering assembly comprises a base assembly and a shielding assembly, the base assembly is used for fixing a target material and attracting plasma to bombard the target material, and the shielding assembly can rotate and is used for selectively shielding the target material. By adopting the semiconductor etching device to etch a silicon carbide wafer, the problem that a device is easy to damage due to a point discharge phenomenon caused by the fact that the side wall and the bottom surface of a formed etching structure are almost vertical can be solved.
Owner:BEIJING NAURA MICROELECTRONICS EQUIP CO LTD
A light emit diode having a uniform electrode electric field distribution and a method for manufacture that same
PendingCN109148662AImprove electric field distributionReduce restrictionsSemiconductor devicesTransport layerLight-emitting diode
The invention relates to a light emitting diode with uniform electrode electric field distribution and a preparation method thereof. The diode comprises a substrate, a buffer layer, N-Type semiconductor transport layer, multiple quantum well layer, P-Type semiconductor transport layer, P-Type heavily doped semiconductor transport layer, current spreading layer; The N-type semiconductor transmission layer is partially exposed, and the exposed N-type semiconductor transmission layer is distributed with an N-type ohmic electrode;; An insulator layer is distributed on the current spreading layer,and the insulator layer is covered with P-Type - ohmic electrode; Holes of the same size are patterned distributed on the insulating layer; Said P-type ohmic electrode is divided into two parts, a column pattern electrode matching the holes in the insulating layer is distributed at the lower part, and an integral layered structure is arranged at the upper part, which is covered on the insulating layer. The structure of the invention improves the electric field distribution of the electrode and solves the problem of current crowding after the electric field distribution of the electrode is uniform.
Owner:HEBEI UNIV OF TECH
Pre-twisted suspension clamp with monitoring function
PendingCN106803659AEasy to installConvenience mount, fromMeasurement devicesSuspension arrangements for electric cablesEngineeringForce sensor
The invention relates to a pre-twisted suspension clamp with a monitoring function, which comprises an inner twisted wire, a linear, an outer twisted wire, suspension sleeves, a hoop, a hanging plate, a drawing force sensor, a controller and a temperature sensor seat. As the inner twisted wire is made to have a structural form matched with the outer shape of a wire, the inner twisted wire after winding is more fit with the wire; as two ends of the inner twisted wire and the outer twisted wire are designed to have arc structural forms, a point discharge phenomenon is thus avoided; as the temperature sensor seat has a tubular structure, the temperature is in a completely coating state after being mounted, the sensor can be effectively protected, and the measured data are more accurate; as the drawing force sensor is arranged, the force of the suspension clamp can be monitored; as a connection plate is arranged, falling of the whole suspension clamp after the drawing force sensor is pulled broken can be effectively prevented; and as the structure is reasonable and the performance is reliable, the practicality and the promotion value are large.
Owner:JIANGSU TIANNAN ELECTRIC POWER EQUIP
Aluminum-coated carbon fiber conductor strain clamp
PendingCN109494666AAvoid tip discharge phenomenonAvoid damageAdjusting/maintaining mechanical tensionElectric connection structural associationsFiberStress concentration
The invention relates to an aluminum-coated carbon fiber conductor strain clamp, which is composed of a clamp body, a steel anchor, a compression pipe, a drainage plate and a drainage clamp, wherein the ratio of lengths of insertion to the compression pipe by an anchor rod and an aluminum-coated carbon fiber core is 1 to 2; as two end surfaces of the clamp body adopt a circular arc surface structure form, happening of a point discharge phenomenon is thus avoided; as the compression outer surface between the clamp body and the aluminum-coated carbon fiber conductor adopts a taper structure, stress concentration after compression is thus avoided; as the anchor rod of the steel anchor is uniformly provided with annular circular arc grooves, the compression pipe and the anchor rod and the anchor rod and the clamp body after compression can be closely fit, and the tension resistance is improved; as the drainage plate adopts a ring buckle and splint combination mode and the drainage plate and the drainage clamp are in double-sided contact, the conductive performance is better; and the compression part between the compression pipe and the aluminum-coated carbon fiber core adopts the taperstructure, stress concentration after compression to cause damages to the carbon fiber core can be avoided.
Owner:JIANGSU TIANNAN ELECTRIC POWER EQUIP
12kV current-carrying 1250A solid insulation switchgear
ActiveCN105846335ASufficient conductive cross sectionIncreased operating lifeBus-bar/wiring layoutsArrangements with resin casingElectrical resistance and conductanceElectrical conductor
The invention discloses a 12kV current-carrying 1250A solid insulation switchgear. The switchgear comprises a casing, the central portion of the casing is provided with an insulation square barrel, and the insulation square barrel is internally provided with a vacuum switch, an isolation switch and a grounding switch. The insulation square barrel is externally provided with a metal shielding grounding layer, and a spring energy storage operating mechanism and a locking mechanism are arranged at one side of the insulation square barrel and are respectively in driving connection with the vacuum switch, the isolation switch and the grounding switch. According to the invention, by use of a through cluster bus structure, no matter wiring is performed at the front end or the rear end of a wire inlet and outlet system, a sufficient conductive cross section can be guaranteed, by use of a watchband contact finger technology, contacts are uniformly distributed, the conductor length is reduced, the overall loop resistance is reduced, the problem of non-uniform conduction in heavy-current electric contact is avoided, and pressing looseness caused by temperature distortion of a conductor and heating malicious deformation further caused therefrom are solved. The rated current grade of a 12kV solid insulation switchgear can reach 1250A.
Owner:GUANGDONG PURLUX ELECTRIC
Etching method of silicon carbide wafer
PendingCN112921403AAdd depthReduce concentrationAfter-treatment detailsSemiconductor/solid-state device manufacturingCarbide siliconWafering
The invention discloses an etching method of a silicon carbide wafer. The method comprises the following steps of: a transfer step: transferring the silicon carbide wafer with a patterned mask on the surface into a process chamber; and an etching step: introducing process gas into the process chamber, exciting the process gas into plasma, etching the silicon carbide wafer, wherein the process gas includes an etching gas and a diluent gas, the etching gas is used for etching the silicon carbide wafer, and the dilution gas is used for diluting the concentration of the plasma obtained by exciting the process gas. By adopting the etching method disclosed by the technical scheme to etch the silicon carbide wafer, the problem that a device is easy to damage due to a point discharge phenomenon caused by the fact that the side wall and the bottom surface of the formed etching structure are almost vertical can be prevented.
Owner:BEIJING NAURA MICROELECTRONICS EQUIP CO LTD
Microwave disinfection and sterilization device for negotiable securities
ActiveCN111467531AAvoid tip dischargePrevent carbonization and burningLavatory sanitoryRadiationEngineeringMicrowave
The invention discloses a microwave disinfection and sterilization device for negotiable securities. The microwave disinfection and sterilization device comprises a microwave working cavity and at least one microwave generator, wherein the microwave working cavity comprises one or a plurality of negotiable securities containing areas; two sides of each negotiable securities containing area are independently provided with a first baffle plate and a second baffle plate; the first baffle plate and the second baffle plate are opposite; in addition, the first baffle plate and the second baffle plate are set to be in parallel with a bearing surface of each negotiable securities containing area; the first baffle plate and the second baffle plate are independently made of microwave non-penetratingmaterials; and an interval between the first baffle plate and the second baffle plate is not greater than the half wavelength of the microwave. Two sides of each negotiable securities containing areaare independently provided with the baffle plate made of the microwave non-penetrating materials, the interval between two layers of baffle plates and the wavelength of the microwave meet a certain proportional relation, a non-mixed-mode electromagnetic wave can be realized, and the negotiable securities can prevent from being carbonized and burnt down.
Owner:ZHONG CHAO GREAT WALL FINANCIAL EQUIP HLDGCO
Hanger for electroplating bridge rectifier frame
InactiveCN103451710AWill not bendAvoid tip discharge phenomenonElectrolysis componentsEngineeringMechanical engineering
The invention discloses a hanger for electroplating a bridge rectifier frame. The hanger comprises a plurality of support rods which are vertically arranged side by side, wherein a plurality of brackets which radially extend outwards are arranged at two opposite sides of each support rod up and down side by side; a conductive plating part shelving section which is tipsily bent into a U shape downwards is arranged at the middle part of each bracket; a baffle rod is transversely connected between the tail ends of the brackets on two adjacent support rods. The hanger has the beneficial effects that the hanger is directly placed without a hook; the point discharge phenomenon is avoided; the hanger is high in electroplating effect, high in stability, and high in operating efficiency, and does not cause bending deformation of a plating part.
Owner:SHANDONG DIYI ELECTRONICS SCI & TECH
Polysilicon thin film processing method, thin film transistor, array substrate and display panel
ActiveCN106783582BAvoid tip discharge phenomenonImprove leakage currentTransistorSemiconductor/solid-state device manufacturingTransistor arrayEngineering
Owner:WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
Multifunctional electromagnetic pulse experiment instrument
InactiveCN101359433BEasy to adjustImprove the experimental effectEducational modelsHigh-voltage direct currentEngineering
Owner:DEZHOU UNIV
A pixel unit and its preparation method, array substrate and display device
ActiveCN105810719BAvoid mixing colorsImprove color mixingSolid-state devicesIdentification meansDisplay deviceColor mixing
The present invention provides a pixel unit. The pixel unit includes: a pixel defining layer, a pixel electrode, a light-emitting layer and a common electrode. The pixel electrode includes a bottom surface and a side surface, and the side surface extends along the side wall of the second via hole to the second via hole. On the top of the side wall, the light emitting layer is formed on the pixel electrode and covers the pixel defining layer, and the common electrode is formed on the light emitting layer, covering the light emitting layer and extending along the top surface of the pixel defining layer. The pixel unit of the present invention greatly reduces the light scattered from the light-emitting layer to the surroundings, greatly improves the color mixing phenomenon between the pixel units, effectively solves the color mixing problem caused by light scattering, increases the light-emitting area of the pixel unit, and improves the The overall brightness reduces the cost of the mask and greatly reduces the cost of the entire process, improves the production capacity, and improves the luminous effect.
Owner:BOE TECH GRP CO LTD +1
Preparation method of aluminum clad steel pre-stranded wire
ActiveCN102082406BWith strengthPrevent rustDevices for damping mechanical oscillationsAcid washingDistribution circuits
The invention relates to an aluminum clad steel pre-stranded wire for fixing a damper or a spacing bar in power transmission and distribution circuits of the power industry and a preparation method thereof. The aluminum clad steel pre-stranded wire consists of an inner core steel wire, an aluminum clad layer and end face treatment layers, wherein the aluminum clad layer is clad on the periphery of the inner core steel wire, and the end face treatment layers are clad at two ends of the inner core steel wire and the aluminum clad layer or the end of the inner core steel wire. Because the end face of the pre-stranded wire is designed into a duckbilled shape, the pre-stranded wire is bound with a power transmission cable more firmly; because the end faces are provided with the treatment layers, the rust corrosion of the end faces is avoided; because the oxide layer on the end face of the inner core steel wire is cleared by adopting the methods of quick burnishing, polishing and the like, corrosion of acid washing on the aluminum clad layer is avoided, and pollution of acid to the environment is reduced; and a flexible blanket is placed in a container, and a plating aid is coated on the inclined plane of the inner core steel wire by adopting a rubbing method, so corrosion of the aluminum clad layer is reduced.
Owner:JIANGSU TIANNAN ELECTRIC POWER EQUIP
Isolation switch and static contact assembly thereof
PendingCN114664574AEasy to useImprove connection strengthSwitches with movable electrical contactsAir-break switch detailsEngineeringMechanical engineering
The invention relates to an isolating switch and a static contact assembly of the isolating switch, the static contact assembly comprises a static contact, the static contact is provided with an axial through hole for a moving contact to penetrate, the peripheral surface of the static contact is provided with heat dissipation fins, the heat dissipation fins comprise end heat dissipation fins located at the axial end of the static contact, the end heat dissipation fins are integrally formed on the static contact, and the end heat dissipation fins are arranged in the axial through hole. And the end part radiating fins are flush with the end surface of the corresponding end of the static contact, so that a plate electrode structure is formed at the end part of the corresponding end of the static contact. The problem that in the prior art, due to the fact that an inner chamfer is machined at the end of the static contact, the end of the static contact is prone to discharging can be solved.
Owner:HENAN PINGGAO GENERAL ELECTRIC CO LTD +1
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