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56results about How to "Reduce hot spot effect" patented technology
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Structures with adaptive cooling
ActiveUS20100077764A1Reduce hot spot effectContinuous combustion chamberTurbine/propulsion engine coolingEngineering
Disclosed are exemplary structures with adaptive cooling and methods of adaptively cooling structures. A liner is affixed to a support and the liner deflects away from the support when exposed to a localized hot spot in a hot fluid stream. The liner deflection creates a chamber between the liner and support, allowing cooling air to impinge against the liner, thus mitigating the effects of the hot spot. By providing impingement cooling only where needed, the amount of air needed for cooling is reduced.
Owner:RTX CORP
Method and apparatus for a computing system using meta program representation
InactiveUS20050240897A1Reduce hot spot effectPreventing “hot spots” from occurringBinary to binaryConcurrent instruction executionMeta levelObject code
A method (and apparatus) for executing a main program having a series of machine-executable instructions in one of a program binary representation and an object code representation, including establishing a first pipeline for executing the main program and establishing a second pipeline for executing a meta-program to at least one of fetch and store meta-program information of the executing of the main program and a result of an analysis of the executing the main program. The program binary representation or object code representation of the main program is not modified by establishing the second pipeline or by executing the meta-program.
Owner:UOP LLC +1
Method for preparation of emulsion explosive by using waste explosives
The invention relates to a method for preparation of an emulsion explosive by using waste explosives. The method comprises the following process steps: preparation of water phase liquid, preparation of a compound oil phase, emulsification, cooling, sensitization and charging. A key point of the invention lies in that waste emulsion explosives are utilized; and the waste emulsion explosives refer to chemical bubble-sensitive emulsion explosives which suffer demulsification, crystallization, hardening and the like and lose detonator sensitivity and detonation capacity. In the method, the waste emulsion explosives are used in the preparation of the water phase liquid. According to the invention, low temperature, environmental protection and no pollution of three wastes (waste gas, waste water and industrial residue) are realized, according with developmental requirements; and except packages of explosive cartridges, the explosives are totally recovered, and a high recovery rate is obtained.
Owner:CHINA COAL TECH & ENG GRP HUAIBEIBLASTING TECHN RES INST
Sandstorm preventing and dust eliminating single-axis photovoltaic tracking power generation system structure
InactiveCN102857145AImprove cleanlinessEasy to usePhotovoltaic supportsControl using feedbackComputer moduleEngineering
The invention discloses a sandstorm preventing and dust eliminating single-axis photovoltaic tracking power generation system structure. A first fixed bracket and a second fixed bracket are respectively connected with two ends of a rotating shaft, the back of a photovoltaic assembly is fixed on the rotating shaft, and the photovoltaic assembly can carry out 0 to 360-degree bidirectional rotation together with the rotating shaft under drive of a motor; the motor, a control module, a first pressure sensor and a second pressure sensor are arranged on the second fixed bracket; the angle between the first pressure sensor and the rotating shaft is alpha degrees, and the angle between the second pressure sensor and the rotating shaft is (180-alpha) degrees; and a weather observation instrument is arranged on one side of the first fixed bracket and used for monitoring signals of wind direction, wind speed, rainfall and light intensity and transmitting the monitored signals to the control module. Through the structure, the surface cleanliness of the assembly is improved, the hot spot effect is reduced, the ray incidence rate of the surface of the assembly is kept, the photoelectric conversion efficiency is improved, dust on the surface of the photovoltaic assembly can be effectively cleaned, and the manpower cost is reduced.
Owner:HANGZHOU DIANZI UNIV
Semi-slice photovoltaic module circuit and semi-slice photovoltaic module
ActiveCN107275420AIncrease powerReduce hot spot effectPhotovoltaic energy generationSemiconductor devicesBattery cellDiode
The invention discloses a half-slice photovoltaic component circuit, wherein the half-slice photovoltaic component circuit includes multiple sets of battery string units, each adjacent two sets of battery string units are connected in series through a first bus bar, and each set of battery string units The two ends of the two ends are respectively connected in parallel with a diode through the second bus bar. Each battery string unit includes two battery strings connected in parallel, and each battery string includes a plurality of batteries connected in series. The first battery string unit in the plurality of battery string units The first end of the battery string unit in one group is formed as the positive pole of the half-slice photovoltaic module circuit, and the tail end of the last group of battery string units in multiple groups of the battery string unit is formed as the half-slice photovoltaic module circuit the negative pole. The invention also discloses a half-slice photovoltaic module. When the half-slice photovoltaic component circuit provided by the present invention is applied to the photovoltaic component, it not only solves the hot spot effect, but also facilitates welding operation and mass production.
Owner:WUXI SUNTECH POWER CO LTD
Method for manufacturing parallel-series thin film battery pack
ActiveCN106229353AReduce the impactReduce hot spot effectFinal product manufactureSemiconductor/solid-state device manufacturingElectrical batteryEngineering
The invention discloses a method for manufacturing a parallel-series thin film battery pack. The method mainly comprises the steps of separating out two or more sub batteries on a TCO (Transparent Conductive Oxide) conductive glass by a laser reticle, connecting the sub batteries in parallel by using a drainage strip, and then connecting the sub batteries in series by using a bus bar to manufacture the thin film battery pack. By adopting the method, the problems caused by film layer difference and series connection of the sub batteries are solved in sufficient consideration of poor uniformity of film layers after large-area coating and in combination with the characteristics of a parallel circuit; and a plurality of sub battery blocks connected in parallel can also be manufactured according to process requirements, and the parallel sub battery blocks are connected in series to form a parallel and series connection mode, so that the performance of batteries is improved. By adopting the manufacturing method, the later process and the series connection mode are identical and thus do not have difference on cost, and the most importantly, inevitable problems in production are solved, so the manufacturing method has a wide application prospect.
Owner:ZHONGSHAN RUIKE NEW ENERGY CO LTD
Solar panel with honeycomb-shaped colored coating, production method of solar panel and colored solar photovoltaic module
ActiveCN113097340AImprove photoelectric conversion efficiencySolve aestheticsPhotovoltaic energy generationSemiconductor devicesPhotosensPhoto irradiation
The invention discloses a solar panel with a honeycomb color coating, a production method of the solar panel and a color solar photovoltaic module, and the production method comprises the following steps: coating a transparent substrate with a UV color coating, and preheating the transparent substrate; after preheating, adopting ultraviolet light to irradiate the UV colored coating, and enabling the UV colored coating to be subjected to preliminary curing; obliquely punching or scribing the preliminarily cured UV colored coating by adopting a laser beam to form light holes or grooves, so that the UV colored coating forms a honeycomb structure; and performing post-curing on the perforated UV colored coating to form a solar panel with a honeycomb colored coating. The UV colored paint comprises the following raw materials in percentage by mass: 50-70% of a photosensitive polymer; 10-25% of a low-viscosity photoactive diluent; 1-5% of a photosensitizer; 1-15% of a pigment; 0.5-2% of an ultraviolet light absorber; and 0.01-3% of a leveling agent. The UV colored coating has a honeycomb structure, so that the light transmittance of the solar panel is obviously improved.
Owner:HANGZHOU KEWANG SPECIAL INK CO LTD
Preparation method of series-parallel thin film battery assembly
ActiveCN106098809AIncrease power generationLower internal resistanceFinal product manufactureSemiconductor/solid-state device manufacturingLaser etchingPower station
The invention discloses a preparation method of a series-parallel thin film battery assembly. The method is mainly characterized in that a piece of TCO conductive glass is equally divided into two parts, which are the same in area, through a laser etching line, wherein the two parts are a series conductive portion and a parallel conductive portion, the series conductive portion is used for carrying out laser scribing on series sub-batteries, the parallel conductive portion is used for carrying out laser scribing on parallel sub-batteries, the series sub-batteries and the parallel sub-batteries are respectively connected by using a drainage strip and a bus bar, and then the series conductive portion and the parallel conductive portion are connected so as to manufacture the required series-parallel thin film battery assembly. According to the preparation method disclosed by the invention, a defect that the film uniformity is poor after large-area film plating is considered, characteristics of a series circuit and a parallel circuit are combined, and problems brought about by film difference and series connection of the sub-batteries are solved. Optimization for electrical parameters is carried out in allusion to a characteristic of high voltage or high current in the electrical parameters of a thin film battery, thereby avoiding influences imposed on such factors as inverter model selection and power station design in power station construction in a later period.
Owner:ZHONGSHAN RUIKE NEW ENERGY CO LTD
Full series-parallel stacked photovoltaic module and manufacturing method thereof
PendingCN110137293AReduce hot spot effectReduce power lossPhotovoltaic supportsFinal product manufactureElectrical batteryEngineering
The invention discloses a full series-parallel stacked photovoltaic module and a manufacturing method thereof and belongs to the technical field of photovoltaic power generation. Through the staggeredarrangement of two adjacent rows of cells, each cell is connected in parallel with cells in the same row and is connected in series with cells in the same column, so that all photovoltaic modules form a mesh-like hybrid circuit connection manner, and all the photovoltaic modules share a conductive channel. When a cell unit is blocked or damaged, an unblocked cell unit near the blocked battery unit can drain current through an adjacent parallel node, therefore, the blocking loss is limited in a small range near the blocked unit, the module spot effect is eliminated, the power loss caused by local blocking is reduced, and improves the power generation capacity of an entire system is improved.
Owner:CHINA HUANENG GRP CO LTD +1
Structures with adaptive cooling
ActiveUS9587832B2Reduce hot spot effectContinuous combustion chamberGas turbine plantsEngineeringShock cooling
Owner:RTX CORP
Thin-film solar cell device having colored pattern
InactiveCN108735846APresenting a multi-color effectReduce shadingPhotovoltaic energy generationSemiconductor devicesMicro structureProtection layer
The invention relates to a thin-film solar cell having a colored pattern. The thin-film solar cell having the colored pattern comprises a solar film unit, a front protective layer, at least one colored pattern and a back protective layer; the solar film unit comprises a light receiving surface and a backlight surface; the front protective layer is arranged on the light receiving surface, and comprises an inside surface adjacent to the light receiving surface, an outside surface and a micro-structure unit formed on the outside surface; the colored pattern is formed on the inside surface of thefront protective layer, and comprises multiple micro-color points having at least one color; the back protective layer is arranged on the backlight surface of the solar film unit; when irradiating each micro-color point through the micro-structure unit, incident light irradiates the light receiving surface of the solar film unit corresponding to the micro-color point through poisson spot generatedby the diffraction phenomenon; the light spreading effect is formed on the light receiving surface; the multi-color-system effect is displayed; and in addition, the shade phenomenon and the hot spoteffect also can be reduced.
Owner:ETERBRIGHT SOLAR CORP
Solar photovoltaic panel adjustment device
ActiveCN105871318AMaximize sun exposureExtended service lifePhotovoltaic supportsPhotovoltaic energy generationEngineering physicsSunlight irradiation
The invention discloses a solar photovoltaic panel adjustment device, belongs to the technical field of a solar photovoltaic panel. In the technical scheme, the solar photovoltaic panel adjustment device comprises a rotation device, a support and a lifting device, wherein the support is arranged on the rotation device, and the lifting device is arranged on the support. The solar photovoltaic panel adjustment device has the advantages that the solar photovoltaic panel and the support are fixed on a turntable, the direction of the solar photovoltaic panel is adjusted by the rotation of the turntable, so that the solar photovoltaic panel can receive sunlight irradiation at different moments to the great extent; and meanwhile, the solar photovoltaic panel is hinged with the support, the lifting device is arranged on the support and is used for adjusting the inclination angle of the solar photovoltaic panel, thus, the maximum area of the solar photovoltaic panel receiving sunlight irradiation is ensured, and the power generation efficiency is improved.
Owner:广东德九新能源有限公司
A self-cleaning perovskite solar cell and a preparation method thereof
InactiveCN108987581AImprove light absorptionImprove photoelectric conversion efficiencySolid-state devicesSemiconductor/solid-state device manufacturingElectrical batterySolar battery
The invention discloses a self-cleaning perovskite solar cell and a preparation method thereof, the perovskite solar cell comprises a glass substrate, The front electrode, the hole transport layer, the perovskite absorption layer, the electron transport layer, the buffer layer and the metal electrode layer laminated in this order from top to bottom. The difference from the prior art is in that a self-cleaning layer is arranged on the upper surface of the glass substrate, and the self-cleaning layer is a TiO2 film layer or a TiO2 film layer doped with Yb3 +, Er3 +, Ho3 + or Tm3 + upconversion ions. The self-cleaning layer has photocatalysis and photoinduced superhydrophilicity. The photocatalysis can degrade organic pollutants on the surface of solar cells, and the photoinduced superhydrophilicity can make the solar cells use natural rainwater to wash away the dust on the surface.
Owner:VALIANT CO LTD
Magnetic dustproof photovoltaic panel
ActiveCN105577086AGuaranteed uptimeNot easy to stainPhotovoltaic supportsPhotovoltaic energy generationFree rotationFerromagnetism
The invention relates to a magnetic dustproof photovoltaic panel. The magnetic dustproof photovoltaic panel comprises a bracket and a power generation panel. The power generation panel is pie-shaped. A lower permanent magnet ring is embedded in a light receiving surface. The lower permanent magnet ring and the power generation panel are coaxially arranged. A dustproof shield is also flexibly installed above the power generation panel. The dustproof shield can freely rotate with the axis of the power generation panel acting as a rotating shaft. The cover plate of the dustproof shield is made of transparent material, and the blocking sides are made of ferromagnetic material. An upper permanent magnet ring is embedded in the cover plate. The positions of the upper permanent magnet ring and the lower permanent magnet ring exactly oppose and the same poles are repulsive. A wind fan is installed below the blocking sides, and permanent magnet sheets are equidistantly installed on the circular frame of the wind fan. According to the photovoltaic panel, pollution of dust to the photovoltaic panel can be effectively prevented, and damage of the hot spot effect to photoelectric elements can also be effectively prevented so that the service life of the photovoltaic panel can be greatly prolonged.
Owner:XUZHOU TIANTAI MACHINERY MFG
Application method for detecting hormone in food by joint SERS (Surface Enhanced Raman Scattering) substrate
ActiveCN107290324AReduce hot spot effectHigh sensitivityRaman scatteringMethanol waterPhysical chemistry
The invention discloses an application method for detecting a hormone in food by a joint SERS (Surface Enhanced Raman Scattering) substrate. A detection method comprises the following steps of firstly preparing n-hexanethiol modified magnetic nano silver flower; secondly, using diethylstilbestrol as an experimental subject, and investigating and researching the homogeneity, the repetitiveness and the stability of the joint SERS substrate of a Fe3O4@SiO2-Ag-C6+ sliver rod; diluting two hormones to have different concentrations respectively by using methanol water and milk, and purifying and enriching by using a SPE (Solid Phase Extraction) column; adding eluant to the SERS substrate respectively, drying, then dotting on the silver rod, carrying out raman spectrum detection, and determining a lowest detection limit. The standard addition recovery rate is 88.72 percent to 110.04 percent; the application method has a relatively high recovery rate; the requirement on the analysis of a residue of the hormone in the food can be completely met. The invention also discloses the joint SERS substrate of the Fe3O4@SiO2-Ag-C6+ silver rod, which is prepared by the method. The joint SERS substrate has abundant hotspots, and can be used for making up the loss, which is brought as C6 is adsorbed on the surface of a silver crust, of a raman signal.
Owner:ACADEMY OF MILITARY MEDICAL SCI
Unmanned aerial vehicle terminal laser energy transfer system based on three-stage tracking and light field regulation and control
ActiveCN112260417AReduced photoelectric conversion efficiencyRealize dynamic trackingCircuit arrangementsTarget-seeking controlBeam expanderInformation transmission
The invention discloses an unmanned aerial vehicle terminal laser energy transfer method based on three-level tracking and phase modulation. An unmanned aerial vehicle terminal laser energy transfer system disclosed in the invention comprises a high-power laser, a collimating beam expander for collimating and expanding laser, a tracking galvanometer unit for coarse tuning tracking of a transmitting end, a communication module for information transmission between the transmitting end and an unmanned aerial vehicle, a polarizing film, a spatial light phase modulation diaphragm, the unmanned aerial vehicle, a terminal five-axis rotary table used for visual self-alignment and arranged on the unmanned aerial vehicle, and a photovoltaic cell array, wherein laser emitted by the high-energy laseris collimated and expanded through the collimating beam expander, and coarse adjustment tracking of the laser to the unmanned aerial vehicle is conducted through the tracking galvanometer unit; the spatial light phase modulation diaphragm is arranged at the transmitting end and is combined with real-time feedback of a light field optimization method to modulate a Gaussian light field so as to adapt to any arrangement of photovoltaic cells; the tracking galvanometer unit enables laser spots to be aligned with the photovoltaic cells; the terminal five-axis rotary table arranged on the unmanned aerial vehicle at a receiving end performs fine tuning tracking on the photovoltaic cell array to achieve an optimal receiving angle and an optimal receiving position; and the photovoltaic cell array is arranged on the terminal five-axis rotary table and is used for receiving modulated laser energy.
Owner:SHANGHAI JIAO TONG UNIV
POE adhesive film with high electrical strength and electrical tracking resistance and preparation method thereof
ActiveCN109705772AIncrease the degree of cross-linkingLow ionization potentialNon-macromolecular adhesive additivesFilm/foil adhesives without carriersElectric breakdownOctene
The invention discloses a POE adhesive film with high electrical strength and electrical tracking resistance. The POE adhesive film comprises the following raw materials by weight: 70 to 90 parts of ethylene-octene copolymer modified particles and 10 to 30 parts of a functional masterbatch, wherein the functional masterbatch comprises the following raw materials by weight: 70 to 90 parts of an ethylene-vinyl acetate copolymer, 10 to 30 parts of an ethylene-methyl methacrylate copolymer, 0.1 to 5.0 parts of a photoinitiator and 0.5 to 3.0 parts of a stabilizer; and the stabilizer is a benzil stabilizer. The invention also discloses a preparation method for the above-mentioned POE adhesive film. On the basis that high transmittance and adhesion properties of the adhesive film are maintained,the POE adhesive film provided by the invention has high electrical strength and electrical tracking index resistance, is applied to packaging of a photovoltaic assembly, can effectively improve theelectrical strength and electrical tracking index resistance of the photovoltaic assembly, avoids large drop or failure of the power of the photovoltaic assembly in the process of photoelectric conversion, thereby greatly reducing hot spot effect and the phenomenon of electric breakdown damage or electrical tracking damage.
Owner:广东莱尔新材料科技股份有限公司
Double-side photovoltaic assembly
PendingCN109301010AIncrease rear powerExtended service lifePhotovoltaicsPhotovoltaic energy generationElectrical batteryEngineering
The invention provides a double-side photovoltaic assembly, and relates to the technical field of photovoltaic assemblies. The double-side photovoltaic assembly comprises at least one battery group, abypass diode connected with corresponding battery groove in parallel, and a shield fixed on a backboard; each battery group is composed of batteries in parallel connection, and each battery is composed of cells in serial connection; at least part of the cells shielded by the shield are shielded cells; the battery with the shielded cells is a shielded battery; and the number of the shielded cellsin each shielded battery is greater than or equivalent to 2. Via the double-side photovoltaic assembly, influence of back-side shading on the generating capacity can be reduced, result caused by a hotspot effect can be slowed, and the service life of the assembly is prolonged.
Owner:LONGI GREEN ENERGY TECH CO LTD
Local Coil for a Coil System of a Magnetic Resonance Imaging System
InactiveUS20150028868A1Improve cooling effectExcellent magnetic resonance compatibilityDiagnostic recording/measuringSensorsMR - Magnetic resonanceMagnetic field
A local coil for a coil system of a magnetic resonance imaging (MRI) system having a hot spot formed during operation of the magnetic resonance imaging system provides an MRI examination that is as pleasant as possible for a patient with a magnetic field strength that is as strong as possible. The local coil includes a heat dissipation plate arranged in a region of the hot spot.
Owner:SIEMENS AG
Hot-spot-preventing photovoltaic panel
InactiveCN105577080AImprove cleanlinessReduce contaminationPhotovoltaic supportsPhotovoltaic energy generationEngineeringHigh transmittance
The invention relates to a hot-spot-preventing photovoltaic panel. The hot-spot-preventing photovoltaic panel comprises a bracket and a power generation panel. Bracket is installed at the lower side of the power generation panel. The light receiving surface of the power generation panel is obliquely upward in the angle of 45 degrees. A rotating shaft is fixedly installed at the center of the power generation panel. A dust board sleeves the rotating shaft. The dust board is made of high-transmittance material and the profile of the dust board is pie-shaped. The circular side of the dust board is also provided with tooth slots. The hot-spot-preventing photovoltaic panel also comprises a wind fan. Teeth engaged with the tooth slots are equidistantly arranged at the edge of the wind fan. The wind fan is rotatably installed on the bracket. The edge of the wind fan is engaged with the circular side of the dust board. According to the photovoltaic panel, the hot spot effect can be effectively eliminated so that stable working of internal photoelectric elements can be guaranteed for a long time.
Owner:广东中嘉昌泰建设有限公司
Intelligent hot-spot resistant photovoltaic assembly
PendingCN107946392AReduce hot spot effectAvoid hot spotsPhotovoltaic monitoringPhotovoltaic energy generationEngineeringJunction box
The invention discloses an intelligent hot-spot resistant photovoltaic assembly, and the assembly comprises an aluminum alloy frame, a first cover plate layer, a first package layer, a battery piece layer, a second package layer, a second cover plate layer, and a junction box. The battery piece layer is provided with a plurality of power optimization chips and a diode chip, and the battery piece layer comprises a plurality of battery strings. Each battery string is formed by the series connection of a plurality of battery pieces welded through a plurality of solder strips, and the battery strings are connected with each other through convergence strips. A power optimization chip is in parallel connection with the battery strings, and the diode chip is in reverse parallel connection with the battery pieces. The diode chip is in reverse parallel connection with each battery piece, thereby completely eliminating the hot-spot effect which may happen to the assembly, and improving the reliability of the assembly. The power optimization chip is connected with each battery string, thereby eliminating the mismatching between the battery strings, and enabling the power output of the batterystrings and the overall power output of the assembly to be maximized.
Owner:WORLDWIDE ENERGY & MFG NANTONG
Crystalline silicon solar cell screen for positive electrode hollow molding
PendingCN109016807AReduce the chance of breaking the gridReduce hot spot effectFinal product manufactureScreen printersEmulsionSilicon solar cell
The invention discloses a crystalline silicon solar cell screen for positive electrode hollow molding. A positive electrode comprises a positive electrode main grid, a positive electrode fine grid andgrid breaking prevention structures. The grid breaking prevention structures and the positive electrode fine grid are integrated printed and formed. The front face of the screen is provided with sensitive emulsion in a protruding manner. The sensitive emulsion corresponds to the grid breaking prevention structures of the positive electrode. When the crystalline silicon solar cell screen is used for printing the positive electrode, the positions, corresponding to the sensitive emulsion, of the grid breaking prevention structures are provided with hollowed grooves so that the grid breaking probability during positive electrode printing is reduced, and by preventing grid breaking, a function of reducing a hot spot effect of local heating of a module is achieved.
Owner:ZHEJIANG AIKO SOLAR ENERGY TECH CO LTD +1
Method for eliminating hot spot effect of magneto-motive dust-proof photovoltaic panel
InactiveCN107017831AGuaranteed uptimeNot easy to stainPhotovoltaic supportsPhotovoltaic energy generationFree rotationEngineering
Owner:嘉兴市新中软计算机系统工程有限公司
Photovoltaic power generation panel with self-adjustment protection function
ActiveCN113541585AExtended service lifeReduce hot spot effectPhotovoltaic supportsEnergy storageSilver bromideDust control
The invention discloses a photovoltaic power generation panel with a self-adjustment protection function. The photovoltaic power generation panel comprises a base and a protection plate, wherein supporting columns are fixedly connected to the two ends of the base, rotating shafts are fixedly connected to the two side plate edges of the protection plate, the two rotating shafts are rotationally connected with the column walls of the two supporting columns through bearings correspondingly, a plurality of solar cell panels are fixedly connected to the protection plate, and a storage battery is embedded in the base. According to the equipment, a lifting plate is controlled to slide up and down by utilizing the characteristics of silver bromide in the presence or absence of illumination, and a solar cell panel is turned upwards to generate electricity in the daytime, and is turned reversely at night or in severe weather, so that the solar cell panel is protected while dust is removed; and when a certain solar cell panel has a hot spot effect due to covering dirt, a cleaning rod can be automatically triggered to slide to clean and brush the surface of the solar cell panel, so that the hot spot effect is eliminated in time, and the service life of the photovoltaic power generation panel is prolonged.
Owner:南通市乐能电力有限公司
Method of driving field emission device (FED) and method of aging FED using the same
InactiveUS7973742B2Improve uniformityAvoid arcingStatic indicating devicesDischarge tube cold cathodesField emission deviceCathode electrode
A method for driving a field emission device (FED) applies an alternating (AC) voltage as a driving voltage for emitting electrons in a field emission device comprising cathode electrode including an emitter and an anode electrode facing the cathode electrode. A method for aging an FED uses a constant voltage so that electrons cannot be emitted from the electron emission source, and an AC voltage so that electrons can be periodically emitted from the emitter when the FED is aged.
Owner:SAMSUNG ELECTRONICS CO LTD
Laser spot tracking receiver
ActiveUS10197677B1Improve accuracyReduced stabilityDirection controllersOptical rangefindersOptical axisLight beam
A technique for is presented for locating at least one object illuminated by a laser designator. A detector and an optical unit are provided. The one optical unit is configured for receiving a beam of laser light scattered by the at least one object being illuminated by the laser designator, for creating two secondary beams, and for focusing the two secondary beams to respective foci along an optical axis of the at least one optical unit. The detector is located between the two foci, divided into an even number of portions, and is configured for measuring an intensity of impinging light at each portion. The optical unit is configured for causing the received laser light to impinge the detector, such that an upright image and an inverted image of the scattered laser light beam having substantially equal sizes and substantially equal energies are projected on the detector.
Owner:ANALOG MODULES
A half-slice photovoltaic module circuit and a half-slice photovoltaic module
ActiveCN107275420BIncrease powerReduce hot spot effectPhotovoltaic energy generationSemiconductor devicesBusbarComputer science
The invention discloses a semi-slice photovoltaic module circuit. The semi-slice photovoltaic module circuit comprises multiple sets of cell string units. Every two adjacent sets of cell string units are connected in series through a first busbar, and the two ends of each set of cell string unit are connected in parallel with one diode through a second busbar. Each set of cell string unit comprises two parallel connected cell strings. Each cell string comprises multiple series connected cells. The head end of the first set of cell string unit of multiple sets of cell string units forms the positive electrode of the semi-slice photovoltaic module circuit. The tail end of the last set of the cell string unit of multiple sets of cell string units forms the negative electrode of the semi-slice photovoltaic module circuit. The invention also discloses a semi-slice photovoltaic module. When the semi-slice photovoltaic module circuit is applied to the photovoltaic module, the hot spot effect can be solved, and welding operation is enabled to be convenient so as to be convenient for batch production.
Owner:WUXI SUNTECH POWER CO LTD
Solar glass panel with honeycomb-shaped colored tempered coating, production method of solar glass panel and colored solar photovoltaic module
ActiveCN113088116AImprove photoelectric conversion efficiencySolve aestheticsCoatingsPhotovoltaic energy generationUltraviolet lightsPhotopigment
The invention discloses a solar glass panel with a honeycomb-shaped colored tempered coating, a production method of the solar glass panel and a colored solar photovoltaic module. The production method comprises the following steps: coating a photovoltaic glass panel with a UV colored tempered coating, and preheating the photovoltaic glass panel; after preheating, adopting ultraviolet light for irradiating the UV colored tempered coating; obliquely punching or scribing the preliminarily-cured UV colored tempered coating by adopting a laser beam so as to enable the UV colored tempered coating to form a honeycomb structure; performing high-temperature tempering on the perforated UV colored tempered coating to form the solar glass panel with the honeycomb-shaped colored tempered coating. The UV colored tempered coating comprises the following raw materials in percentage by mass: 8-25% of a thermoplastic polymer, 10-25% of a low-viscosity photoactive diluent, 1-3% of a photosensitizer, 50-65% of a transparent glass flux, 0.1-15% of an inorganic pigment and 0.01-3% of a leveling agent. The coating of the solar glass panel provided by the invention is excellent in shock resistance and has relatively high light transmittance.
Owner:杭州玻美文化艺术有限公司
Solar cell panel cleaning device
PendingCN110022125AEasy to remove dustGood descaling effectPhotovoltaicsCleaning using liquidsElectricityCells panel
The invention relates to a solar cell panel cleaning device. The solar cell panel cleaning device comprises a water pipe support, wherein the water pipe support is arranged at the top of a solar cellpanel; a crank rocker mechanism is connected below the water pipe support; one end of a rocker of the crank rocker mechanism is connected with the water pipe support, and the other end is connected toa disc-shaped crank; the disc-shaped crank is connected with an electric transmission device; and the water pipe support is connected with a row of nozzles which are tightly attached to the plane ofthe solar cell panel through a water pipe, wherein a certain angle is formed between the nozzles and the plane of the solar cell panel. The fluid ejected by the high-pressure nozzles has great momentum, and has high dust removal and descaling effects on dust and shielding objects on the surface of the cell panel; the equal-interval and swing type nozzles can enable water flow to pass through relatively large cell panels, so that the cleaning efficiency can be improved; and therefore the cleanliness of the surface of the solar cell panel can be ensured, the occurrence of "hot spot effect" is reduced, the photoelectric conversion efficiency is improved, and the service life is prolonged.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER
Device for enhancing heat dissipation of concentrating photovoltaic assembly based on graphene and heat pipe
InactiveCN108429534AExtended service lifeReduce hot spot effectPhotovoltaicsPhotovoltaic energy generationEngineeringSilicone grease
The invention discloses a device for enhancing the heat dissipation of a concentrating photovoltaic assembly based on graphene and a heat pipe. The device comprises a condensing lens, a secondary condenser, a concentrating photovoltaic cell, a graphene bottom plate, a thermoelectric power generation chip, a two-phase closed thermosyphon and a plurality of heat dissipating fins; the condensing lensis disposed above the secondary condenser; the lower bottom surface of the secondary condenser is connected with the concentrating photovoltaic cell; a groove is formed in the upper end of the graphene bottom plate; the concentrating photovoltaic cell is disposed in the groove through thermally conductive silicone grease; the lower end of the graphene bottom plate is bonded to the hot end of thethermoelectric power generation chip through the thermally conductive silicone grease; the cold end of the thermoelectric power generation chip is bonded to the two-phase closed thermosyphon through the thermally conductive silicone grease; and the plurality of heat dissipating fins are mounted on the two-phase closed thermosyphon. According to the device of the invention, the prior art is optimized, so that the heat dissipation of the concentrating photovoltaic assembly can be enhanced, and therefore, the efficiency of a concentrating photovoltaic system can be improved, and the service lifeof the concentrating cell can be prolonged.
Owner:HOHAI UNIV CHANGZHOU
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