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125results about How to "Self-driving" patented technology
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Self-driven acoustic wave transducer
The invention discloses a self-driven acoustic wave transducer, which is constructed by utilizing the frictional electricity property of a material and using a high-elasticity fastener. When acoustic wave is transferred to a first thin film layer of the transducer, the thin film layer makes corresponding mechanical vibration and outputs an electric signal through periodic contact with and separation from a second thin film layer. The electric signal is related to the frequency and the intensity of the acoustic wave, so that the acoustic wave transducer also has the function of a microphone. According to the acoustic wave transducer, the conversion from sound to the electric signal can be realized without supplying power through a power supply or charging previously; the acoustic wave transducer is a self-driven transducer; the self-driven acoustic wave transducer has extremely high sensitivity by using a high-elasticity thin film or a fine wire type fastener; and meanwhile, small, exquisite and concise structural design is adopted, so that the self-driven acoustic wave transducer is light and portable integrally and convenient to use, and has broad application prospect in production and life.
Owner:BEIJING INST OF NANOENERGY & NANOSYST
Positive activation converter
ActiveCN101237189ASelf-drivingAvoid shutdown negative pressure problemsApparatus with intermediate ac conversionElectric variable regulationControl signalInput control
The invention discloses a forward converter, which comprises a power source, an input control circuit, a transformer and a rectifier-filter circuit. The input control circuit has a main switching diode, and the rectifier-filter circuit comprises a rectifier tube and a N-channel JFET forward diode, and the gate of the rectifier tube and the drain of the forward diode are connected to a positive dotted terminal of a transformer secondary principal winding, and the drain of the rectifier tube is connected to the other end of the transformer secondary principal winding, and a source electrode of the forward diode and a source electrode of the rectifier are connected to a common output ground. The transformer has a secondary winding for outputting drive control signals, and a drive circuit for providing pulse drive signals to the forward diode is arranged between the secondary winding and the gate of the forward diode. On-and-off of the JFET forward diode is controlled by voltage signals of the transformer winding so that the forward converter works in a synchronous rectifier state. The drive signals are directly from the transformer winding so that no special driver is needed and no additional power supply is needed, which makes the forward converter simple and reliable.
Owner:VERTIV CORP
Pressure sensor based on triboelectricity
The invention relates to the field of sensing, and discloses a pressure sensor based on triboelectricity. The pressure sensor comprises a generator which deforms under the action of pressure, and generates and outputs an electric signal based on the deformation; and an external circuit which is connected with the generator, and is used for detecting the electric signal outputted by the generator, and determining the size of the pressure or deformation according to the detected electric signal. According to the invention, the pressure sensor can detect the pressure without an additional power supply, and achieves the self-drive of the pressure sensor.
Owner:BEIJING INST OF NANOENERGY & NANOSYST
Self-driven digital micro-chute based on friction generator
The invention discloses a self-driven digital micro-chute based on a friction generator. The self-driven digital micro-chute comprises a digital micro-chute and the friction generator, wherein the digital micro-chute part comprises a lower supply material (1), lower driving electrodes (2), a dielectric layer (3), a lower hydrophobic layer (4), a liquid drop (5), an upper hydrophobic layer (6), an upper driving electrode (7) and an upper support material (8); a friction generator part comprises a lower friction electrode (9), a lower friction material (10), an upper friction material (11) and an upper friction electrode (12). According to the self-driven digital micro-chute based on the friction generator, functions of a conventional digital micro-chute can be finished without an additional power supply, a self-driving function is realized, a specific piezoelectric material is not required, and the self-driven digital micro-chute is easy to prepare, is low in cost and can be produced in batch.
Owner:PEKING UNIV
Spring type nanometer generator and self-driven dynamometer
ActiveCN103354433AHigh mechanical strengthStable output voltagePiezoelectric/electrostriction/magnetostriction machinesForce measurement using piezo-electric devicesNanogeneratorMechanical components
The invention provides a piezoelectric nanometer generator prepared by taking a spring as a base, and a self-driven dynamometer based on the nanometer generator. The spring type nanometer generator comprises a spring base, a conductive outer surface included by a spring wire forming the spring base, a piezoelectric body layer and an outer electrode, wherein the piezoelectric body layer is tightly contacted with the outer side of the conductive outer surface, and the outer electrode is tightly contacted with the outer side of the piezoelectric body layer. The piezoelectric body layer can generate a piezoelectric effect under the condition that deformation of the spring base occurs, and outputs electric signals to an external circuit through the conductive outer surface and the outer electrode. A self-driven pressure sensor and the measurement can be realized by using the advantage that the compression distance of the spring has a linear relation with an applied external force. The self-driven dynamometer provided by the invention is small in size, and can be arranged in various mechanical components conveniently; and the self-driven dynamometer does not need an external power supply during operation, and has the advantages of safety, reliability, environmental protection and the like, thereby being of great significance for sustainable development of intelligent transportation and modern industries.
Owner:BEIJING INST OF NANOENERGY & NANOSYST
Flexible stretchable power generator based on electrification by friction
The invention relates to a flexible stretchable power generator based on electrification by friction; the flexible stretchable power generator comprises a friction layer, the first electrode filling layer, the second electrode filling layer, the first assembling layer and the second assembling layer; a groove channel is arranged inside the first assembling layer and the second assembling layer; the first electrode filling layer fills in the groove channel corresponding to the first assembling layer, thus forming the first contact friction surface; the second electrode filling layer fills the groove channel corresponding to the second assembling layer, thus forming the second contact friction surface; the friction layer is arranged between the first and second contact friction surfaces. Theflexible stretchable power generator based on electrification by friction can gather motion signals in movements so as to form current, thus charging a wearable equipment battery and monitoring mechanical motions; the flexible stretchable power generator based on electrification by friction has very good transmittance, waterproofness and biology compatibility, and can provide important meanings for the electronic skin development and wearable equipment industry.
Owner:FUZHOU UNIVERSITY
Piezoelectric flexible thin film electronic piano
InactiveCN106683652ARich musical expressionSelf-drivingElectrophonic musical instrumentsElectricityThin film sensor
The invention discloses a piezoelectric flexible thin film electronic piano which comprises a power source, an electronic piano control box, a voice box, a flexible thin film substrate and key sensors. The key sensors are arranged on the flexible thin film substrate along the long side at intervals, are flexible piezoelectric pole electrets thin film sensors, can convert mechanical energy generated by key pressing and can output voltage signals different in amplitude and frequency according to speed and depth of key pressing, self driving is realized, and outputting of playing voice different in tone and volume is realized after the voltage signals are processed by the electronic piano control box. The piezoelectric flexible thin film electronic piano is integrally light and convenient to carry.
Owner:GUANGDONG UNIV OF PETROCHEMICAL TECH
Method used for automatic heat dissipation and dust removal of transformer box
ActiveCN107768990ATemperature stability rangeExpand the blowing rangeSubstation/switching arrangement cooling/ventilationSubstation/switching arrangement casingsVertical planeTransformer
The invention relates to a method used for automatic heat dissipation and dust removal of a transformer box, and belongs to the field of closed type transformer substations. According to such problemsas additional energy consumption and external dew invasion and small ash removal range in the prior art, the following scheme is provided. According to the scheme, the method includes the following steps that 1, when the temperature is increased, an expansion air bag extend toward the two ends under the limiting effects of limiting pipes respectively, and thus threaded rods fixedly connected withthe two ends of the air bag are driven to extend outward on support plates; 2, the horizontal positions of propeller fans are fixed, and the moving threaded rods push the propeller fans with inner threads matched with outer threads of the threaded rods to rotate; 3, rotating bars of a rotating-bar type blind window are fixedly connected with rotating ropes, and the other ends of the rotating ropes are fixedly connected with the threaded rods; 4, the moving threaded rods pull the rotating ropes, the rotating bars are driven to rotate, and thus the angle between a blade surface of the blind window and a vertical plane is thus controlled; 5, second conical teeth on tapered pipes fixedly and coaxially connected with the propeller fans are meshed with first conical teeth on the top of transmission rods, the propeller fans drive the transmission rods to rotate, and thus cleaning disks are driven to rotate.
Owner:宁波南顿电力科技有限公司
Micro-fluid self-driven micro-fluidic chip with temperature response and preparation method thereof
InactiveCN103055975ASelf-drivingLow costLaboratory glasswaresTemperature responseChromatographic separation
The invention relates to a micro-fluid self-driven micro-fluidic chip with temperature response and a preparation method thereof. A microstructure and a micro-channel are arranged on the surface of the micro-fluidic chip; the surface of the micro-channel is modified through a temperature response molecule; when the micro-channel is stimulated by an external field temperature, the variation of surface wettability is caused by reversible variations of surface topography and chemical configuration of the micro-channel; the micro-fluid is controlled to move from the bottom up on the surface of the micro-channel, so that the micro-fluid automatically flows; and the micro-fluid self-driven micro-fluidic chip is mainly applied to the related field of electrophoretic separation, chromatographic separation, immunoassay, reaction and the like. The micro-fluidic chip is simply operated, the micro-fluid is self-driven from the bottom up, the micro-fluid driving cost is greatly reduced, the micro-fluid self-driven micro-fluidic chip is portable, economic, rapid and efficient, and a brand new micro-fluid flowing control technology is provided for micro-fluid undriven flowing.
Owner:SUZHOU WENHAO MICROFLUIDIC TECH CO LTD
Body-building type massage device
The invention relates to a body-building type massage device. The body-building type massage device comprises a frame, wherein a bed board is arranged at the upper part of the frame; a sunk trough for embedding of a human body is formed in the upper surface of the bed board; a plurality of through-holes are formed in the sunk trough at the area of the back of the human body; two through-holes are formed in sunk trough at the area of the cervical spine of the human body; a chain wheel with a pedal is hinged above the rear part of the bed board through a bracket; a crankshaft member is arranged inside the frame; the crankshaft member comprises a plurality of connected n-shaped crankshaft sections; each crankshaft section comprises a connecting rod neck and connecting pieces which are respectively arranged at two ends of the connecting rod neck; a plug is arranged on the external side wall of the other end of one connecting piece; a socket for containing the plug is arranged on the external side wall of the other end of the other connecting piece; a plurality of convex ribs are uniformly distributed on the external side wall at the end part of the plug. The body-building type massage device is simple in structure and low in manufacturing cost; people can be massaged while taking exercise.
Owner:徐州宇之阳市场营销策划有限公司
Glucose-response-driven hydrogel multistage motor and production method thereof
The invention discloses a glucose-response-driven hydrogel multistage motor and a production method thereof. The method includes: using silica gel to produce a mould; adding movable silica gel small mould blocks into mould holes during drive layer production; after the drive layer production, taking out the movable silica gel small mould blocks, dropwise adding gelatin / agar mixed solutions of different proportion into interval areas, and gelatinizing the solutions to form the glucose-response intelligent hydrogel multistage motor capable of achieving fast drive. The produced hydrogel multistage motor can achieve self-driving in a drive solution and has excellent drive performance, the drive average speed reaches up to 16.2+ / -1.3mm / s, a decomposition layer can be dissolved step by step through temperature control or infrared irradiation, and the small motor releases step by step and freely propels. Compared with a traditional motor, the hydrogel multistage motor is faster in driving, more intelligent and higher in controllability.
Owner:SOUTH CHINA UNIV OF TECH
Kapok fiber/manganese dioxide structure multi-layer self-drive tubular micro-nano motor and preparing method thereof
ActiveCN109576986ALow costEnvironmental protection and easy shape controlInorganic non-active ingredientsAntineoplastic agentsNear infrared lightPotassium permanganate
The invention discloses a kapok fiber / manganese dioxide structure multi-layer self-drive tubular micro-nano motor and a preparing method thereof. With manganese dioxide adopted as the raw material andkapok fiber adopted as the template, by soaking the kapok fiber in a manganese dioxide solution, the manganese dioxide and the kapok fiber are made to have a redox reaction to generate manganese dioxide nanoparticles to be loaded on the kapok fiber, and therefore the multi-layer self-drive tubular micro-nano motor is prepared, and the motor is good in biological degradability, has carrying, conveying and releasing functions and has wide application prospects in the fields of efficient medicine loading, target cancer cell conveying, medicine near infrared light responsiveness controllable releasing, environmental control and the like.
Owner:FUJIAN UNIV OF TECH
Self-driven cooling and dedusting transformer box
ActiveCN107863711ASolve the need for additional energy consumptionSolve the intrusion of external dewSubstation/switching arrangement cooling/ventilationEnclosed substationsActivated carbonHigh energy
The invention relates to a self-driven cooling and dedusting transformer box and belongs to the field of closed transformer substations. To solve the problems of high energy consumption, intrusion ofexternal dew and small dedusting range of the prior art, the technical scheme includes that the self-driven cooling and dedusting transformer box comprises a cooling and dedusting device; the dedusting device comprises a power mechanism, a cleaning mechanism and a ventilation mechanism; the power mechanism comprises an air bag, a threaded rod and a limit tube sleeves the air bag, the limit tube isfixedly connected to the top wall of the box, protrusions on the end face of the threaded rod are fixed to the end face of the air bag, and a support plate for sliding of the threaded rod is fixedlyarranged below the threaded rod; the ventilation mechanism comprises helical fans and revolving-rod type blinds, the helical fans sleeve the threaded rod, are coated with activated carbon, and revolving rods are fixedly connected with revolving ropes which are further fixedly connected with the threaded rod; the cleaning mechanism comprises drive rods and cleaning discs, the tops of the drive rodsare conical and provided with teeth, and the cleaning discs are fixedly connected to the bottom of the drive rods respectively; besides, the threaded rod is sleeved with teethed conical tubes which are fixedly connected with the helical fans, and the teeth at the tops of the drive rods are meshed with the teeth of the conical tubes.
Owner:宁波南顿电力科技有限公司
Self-driven microfluidic detection chip and preparation method and application thereof
ActiveCN109735439ASelf-drivingRealize integrationBioreactor/fermenter combinationsBiological substance pretreatmentsEngineeringSelf driven
The invention belongs to the field of microorganism detection and particularly relates to a self-driven microfluidic detection chip and a preparation method and application thereof. The self-driven microfluidic detection chip comprises an upper chip layer and a lower chip layer which are sequentially arranged; the upper chip layer is provided with a sample introduction pool and an exhaust hole, the upper chip layer is provided with a fluid channel which is communicated with a detection pool and a waste liquid pool, and the surface of the fluid channel is modified by a hydrophilic material to achieve liquid flow self-driving. The invention also discloses the application of the self-driven microfluidic detection chip in shrimp pathogen detection. The chip is high in automation degree, operators can rapidly, sensitively and microscopically detect multi-purpose nucleic acids only by single-time sample addition, the consumption of detection reagents is greatly reduced, and the production cost is saved.
Owner:YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
Electrically responded microfluid self-driven microfluidic chip and preparation method thereof
The invention relates to an electrically responded microfluid self-driven microfluidic chip and a preparation method thereof. Microstructures and microchannels are arranged on the surface of the microfluidic chip; the surfaces of the microchannels are modified through electric responsiveness molecules; under the excitement of an external electric field, the reversible change of surface morphology and chemical construction of the microchannels causes the change of surface wettability; microfluids are controlled to move from bottom to top on the surfaces of the microchannels so as to realize the spontaneous flowing of the microfluids; and the microfluidic chip is mainly applied in the related fields, such as electrophoretic separation, chromatographic separation, immunoassay, reaction and the like. The microfluidic chip is easy to operate, realizes the self-driving of the microfluids from bottom to top, largely reduces the driving cost of the microfluids, has the characteristics of portability, economy, rapidness and high efficiency, and provides a brand new non-driving flowing technology for the driving of the microfluids.
Owner:SUZHOU WENHAO MICROFLUIDIC TECH CO LTD
Flexible self-driven sensor for sensing temperature and touch and preparation method thereof
ActiveCN114152357ASelf-drivingStable Sensing CapabilityPiezoelectric/electrostriction/magnetostriction machinesThermometers using electric/magnetic elementsMaterials sciencePhysics
The invention provides a flexible self-driven sensor for sensing temperature and touch. The flexible self-driven sensor comprises a composite fiber layer, Au electrodes and a PDMS layer, wherein the composite fiber layer is composed of PZT, MXene and PVDF, and PDMS is filled between composite fibers; the Au electrodes are arranged at the two ends of the composite fiber layer; the invention also provides a preparation method of the flexible self-driven sensor for sensing temperature and touch. According to the flexible self-driven multifunctional sensor for sensing temperature and touch and the preparation method of the flexible self-driven multifunctional sensor, operation is easy, practicability is high, the sensor has high sensing performance, flexibility and mechanical strength, the stable sensing capacity can still be kept after accumulated polarization inversion, and the flexible self-driven multifunctional sensor is suitable for being used for sensing temperature and touch. And meanwhile, leakage of toxic substances such as lead can be effectively prevented.
Owner:UNIV OF SCI & TECH BEIJING
Self-driven optical excitation gas sensor
InactiveCN106990140ASelf-drivingReduce lossMaterial resistanceGas detectorVibration-powered generator
The invention belongs to the technical field of electronic elements and relates to a self-driven optical excitation gas sensor. The self-driven optical excitation gas sensor comprises an environment vibrational energy generation unit, a packaging component, a light source and a gas sensitivity sensor. The environment vibrational energy generation unit comprises an environment vibration generator, a motor, a Faraday cage and a driver, the environment vibration generator is arranged in the Faraday cage, the motor is controlled by the driver to drive the environment vibration motor to perform vibration movement, the vibrational energy of the shielding environment is acquired, a produced electric signal is used as an energy source and is used for providing electric energy for an LED lamp; the packaging component packages the gas sensitivity sensor and the light source in one same closed space, the light source is arranged on the vertical plane of the gas sensitivity sensor, and the gas sensitivity sensor is a semiconductor gas sensitive material sensor. The electric energy produced by a self-powdered friction nano generation system is used to provide the electric energy for the light source directly, the loss of the energy is reduced, and the semiconductor gas sensor is self-driven without the help of the stored energy of a battery.
Owner:DALIAN UNIV OF TECH
PH-responded micro-fluid self-driven micro-fluidic chip and preparation method thereof
InactiveCN103041881ASelf-drivingLow costLaboratory glasswaresMicro structureChromatographic separation
The invention relates to a pH-responded micro-fluid self-driven micro-fluidic chip and a preparation method thereof. A micro-structure and a micro-channel are formed in the surface of the micro-fluidic chip; the surface of the micro-channel is modified through pH-responded molecules; under different pH stimulation, the change of the surface wettability of the surface is caused by the surface appearance of the micro-channel and the reversible change of the chemical configuration; the micro-fluid is controlled to move from bottom to top on the surface of the micro-channel so as to realize self-flowing of the micro-fluid; and the micro-fluidic chip is mainly applied to relevant fields of electrophoretic separation, chromatographic separation, immunoassay, reaction and the like. The micro-fluidic chip is simple to operate, realizes self-driving of the micro-fluid from bottom to top, greatly reduces the cost in driving the micro-fluid, has the characteristics of being portable, economic, rapid and efficient, and provides a completely new micro-fluid flowing control technique for driving-less flowing of the micro-fluid.
Owner:SUZHOU WENHAO MICROFLUIDIC TECH CO LTD
Ship real-time attitude sensing system
InactiveCN109733550ASolve power problemsSelf-drivingAngles/taper measurementsVessel stability improvementData acquisitionMetal electrodes
The invention discloses a ship real-time attitude sensing system. The ship real-time attitude sensing system comprises an inclination angle sensor, a data acquisition module, a data analysis module and a ship attitude sensing module. The inclination angle sensor is composed of a high molecular material tube, a metal electrode, a conducting wire and liquid. The high molecular material tube, the metal electrode and the liquid form a friction nano generator based on liquid-solid contact electrification. According to the ship real-time attitude sensing system, the inclination angle sensed by the inclination angle at a certain moment can be obtained by monitoring the transverse inclination angle and the longitudinal inclination angle of a ship in real time, and then the real-time monitoring ofthe ship attitude is realized through the data acquisition module and the data analysis module. The inclination angle sensor does not need an external power supply, self-driving can be realized, and the power supply problem of the inclination angle sensing is solved. The inclination angle sensing is a signal generating device capable of realizing self-driving at a sensing part, and provides a keytechnical solution for realizing the development of the ship Internet of Things and big data.
Owner:DALIAN MARITIME UNIVERSITY
Wireless power transmission device with constant current output feature
PendingCN108565990ASimple structureReduce lossNear-field transmissionCircuit arrangementsCapacitanceDc converter
The invention relates to a wireless power transmission device with a constant current output feature. A self-excitation inverter circuit is adopted for designing an inverter power supply. According tothe design scheme of the self-excitation inverter circuit, self-driving of a switching tube can be achieved, and extra PWM generators and driving circuits are omitted. The wireless power transmissiondevice is simple in structure, and can also automatically achieve the resonant frequency trace function; moreover, the switching tube works in the zero-voltage switching-on and switching-off state, the loss is small, and the complexity of the inverter circuit is lowered greatly. An electromagnetic resonance system with the constant current output feature is adopted; single-capacitance parallel compensation topology is adopted for the transmitting end of the electromagnetic resonance system, dual-capacitance serial and parallel compensation topology is adopted for the receiving end of the electromagnetic resonance system, constant current output of the wireless power transmission device can be basically achieved under different load conditions simply through three compensation capacitanceelements, and the addition of a rear-level DC / DC converter is omitted.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Wide-spectrum self-driven inorganic perovskite photoelectric detector and preparation method thereof
ActiveCN110649162AWide spectral response rangeImprove responsivenessMaterial nanotechnologySolid-state devicesPerovskite (structure)Electronic band structure
The invention relates to a wide-spectrum self-driven perovskite photoelectric detector and a preparation method thereof. The wide-spectrum self-driven perovskite photoelectric detector comprises a conductive substrate, an electron transport layer, a lead-based perovskite nano concave-convex structure, an organic conjugated polymer layer and an electrode layer which are arranged in sequence, and the organic conjugated polymer layer is made of PDPP3T and / or P3HT. The preparation method comprises the following steps: forming an oxide layer on the surface of a conductive substrate; spin-coating the surface of the oxide layer with a precursor solution of a lead-based perovskite material, and forming a lead-based perovskite nano concave-convex structure by adopting an imprinting technology; andsequentially forming an organic conjugated polymer layer and an electrode layer on the surface of the lead-based perovskite nano concave-convex structure, the organic conjugated polymer layer being made of PDPP3T and / or P3HT. The preparation method of the photoelectric detector is simple, and the photoelectric detector has self-driving performance and an appropriate energy band structure. Electron-hole pair separation can be improved, the light absorption and utilization rate is high, and the performance of the photoelectric detector is improved.
Owner:SUZHOU UNIV
Renewable friction generator, array, temperature sensor, electronic skin and method
ActiveCN111313743ARealize separation, regeneration and reuseImprove tensile propertiesMaterial nanotechnologyThermometers using electric/magnetic elementsMetal nanowiresMaterials science
A renewable friction generator, an array, a temperature sensor, an electronic skin and a method are disclosed. The renewable friction generator comprises: a renewable electrode layer including: a metal nanowire-hydrogel, wherein the metal nanowire-hydrogel is hydrogel doped with metal nanowires, the metal nanowires can be separated from the hydrogel in a water phase at a specific temperature to achieve regeneration, and the hydrogel achieves regeneration based on reversibility of dynamic chemical bonds. Hydrogel doped with metal nanowires is used as an electrode layer. The metal nanowire is insoluble in water, the hydrogel can be dissolved in water in a water phase at a specific temperature, separation, regeneration and reutilization of the metal nanowire can be achieved, meanwhile, on thebasis of reversibility of dynamic chemical bonds, the hydrogel can recover to the original state after being dissolved, overall regeneration of the electrode layer is achieved, and the electrode layer has comprehensive performance of regeneration, high stretching, high transparency, high integration and self-driving.
Owner:BEIJING INST OF NANOENERGY & NANOSYST
Preparation method and application of efficient self-driven catalyst based on Fenton-like reaction and PMS activation
PendingCN113856698ASmall sizeEasy to carryWater treatment compoundsWater contaminantsPollutantEnvironmental chemistry
The invention discloses a preparation method and application of an efficient self-driven catalyst based on Fenton-like reaction and PMS activation. Plant pollen is treated to obtain carbonized pollen, the carbonized pollen is fully soaked in potassium permanganate, then the carbonized pollen and magnetic Fe3O4 nanoparticles are fully oscillated, and the magnetic MnO2@pollen micromotor is obtained, wherein the micromotor is modified with MnO2 nanosheets capable of decomposing hydrogen peroxide, and in a solution containing hydrogen peroxide, the micromotor can be driven by bubbles generated by the micromotor to achieve autonomous movement. The Fenton-like reaction generated by the magnetic Fe3O4 nanoparticles can generate active free radicals required by pollutant degradation. In addition, the MnO2 and the Fe3O4 modified on the micromotor can activate the PMS, so that the pollutant degradation is further enhanced. The contact mass transfer process of the catalyst and pollutants is greatly enhanced, and the pollutant degradation efficiency is remarkably improved, and moreover, the raw materials and the preparation process meet the green and environment-friendly requirements.
Owner:CHINA UNIV OF MINING & TECH
A preparation method of droplet self-driven microreactor and microreactor thereof
ActiveCN105833814BIncrease the gap between hydrophilicity and hydrophobicitySolve the lack of precisionChemical/physical/physico-chemical microreactorsMicroreactorMaterials science
Owner:ZHEJIANG UNIV OF TECH +1
Wheel body with power source arranged internally and method for internally arranging power source of wheel body
ActiveCN104929871ASelf-drivingSimple structureSpring motorMachines/enginesElectrical and Electronics engineering
Owner:深圳市鸿威鸣实业有限公司
Pulse type micro-energy power supply management circuit based on passive peak detection
ActiveCN111740485AImprove practicalitySelf-drivingBatteries circuit arrangementsAc-dc conversion without reversalSupply managementControl signal
The invention discloses a pulse type micro-energy power supply management circuit based on passive peak detection, and relates to the field of micro-energy management. According to the technical scheme, the micro-energy power supply management circuit is characterized by comprising a rectifying circuit, a voltage reducing circuit and an energy storage module which are connected in sequence; a switching circuit based on passive peak detection is arranged between the rectifying circuit and the voltage reducing circuit; the switching circuit based on passive peak detection comprises a passive peak detection circuit and an electronic switch; the passive peak detection circuit is used for carrying out pulse detection on the one-way pulse signal output by the rectifying circuit and sending a switch control signal to the electronic switch when the one-way pulse signal reaches a peak value; and the electronic switch is connected in series between the rectifying circuit and the voltage reducingcircuit, and is used for conducting the rectifying circuit and the voltage reducing circuit to realize maximum energy transfer after the switch control signal is closed, so that the universality andthe energy conversion efficiency of the circuit are improved on the basis of realizing circuit self-driving.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Device and method for cooling high-heat-flux device by using magnetic field
PendingCN111726973ARealize automatic cycleSimple structureCooling/ventilation/heating modificationsThermodynamicsHeat flow
The invention relates to the technical field of the cooling of high-heat-flux devices. The invention further discloses a device and a method for cooling a high-heat-flux device by using the magnetic field. The problems that the device and the method for cooling a high-heat-flux device by a magnetic field in the current market need an electromagnetic pump for active driving, an electromagnetic pumpoccupies a certain space and is restrained by space, the heat dissipation area is small, extra electric energy is consumed for driving the electromagnetic pump, the device does not have the capacityof being automatically adjusted along with the thermal power of a high-heat-flux device, and the single-loop heat exchange area is limited are solved. According to the invention, the device comprisesa heating device, the automatic driving under the seebeck effect and the magnetic field effect can be realized by using the temperature difference; an electromagnetic pump is not needed, the space constraint does not exist, the heat dissipation area is large, extra electric energy is not consumed, the automatic adjustment is conducted according to the thermal power of a high-current-density device, the automatic adaptation to cooling of electronic devices within a certain power range is achieved, and the flowing and heat exchange area of conductive fluid is increased through double annular loops.
Owner:UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
Novel self-driven modular current limiting device
ActiveCN111600285AIncrease electromagnetic forceSelf-drivingSwitch power arrangementsArrangements responsive to excess currentOvervoltageEngineering
The invention belongs to the technical field of power transmission and distribution network fault current limiting, and relates to a novel self-driven modular current limiting device, which comprisesan electric reactor L, a circuit breaker CB and a high-voltage rheostat R, wherein the high-voltage rheostat R is connected with the electric reactor L in parallel and then connected with the circuitbreaker CB in series, a ceramic resistor is in a door shape, a sliding rail is arranged on the inner side of the ceramic resistor, the lower end of the ceramic resistor is connected with L-shaped electrodes, the electrodes on the two sides of the ceramic resistor are parallel and perpendicular to a liquid metal sliding block, the liquid metal sliding block is arranged between the electrodes, an insulating piece is arranged at the lower end of the liquid metal sliding block, And the electrodes on the two sides are connected with the two ends of the electric reactor L respectively, so that the high-voltage variable resistor R and the electric reactor L are connected in parallel. According to the invention, the self-driven variable impedance module is a resistive load, so that overvoltage andinrush current cannot be generated in the current limiting and conversion process; and the self-driven variable impedance module and the current-limiting reactor are convenient for modular design, and can be flexibly connected in series and in parallel according to application occasions.
Owner:DALIAN UNIV OF TECH
Array substrate and manufacturing method thereof
InactiveCN109828395ASelf-drivingAchieve ultra-narrow bezelSolid-state devicesPhotomechanical exposure apparatusDisplay deviceOptoelectronics
The invention provides an array substrate and a manufacturing method thereof, and belongs to the technical field of display. The array substrate comprises a multilayer thin film transistor and a planarization layer, wherein the multilayer thin film transistor comprises a first thin film transistor and a second thin film transistor; the planarization layer is positioned between the first thin filmtransistor and the second thin film transistor; and a common electrode of the first thin film transistor and a grid electrode of the second thin film transistor are formed by adopting the same layer of a transparent conductive material. According to the array substrate, at least two laminated thin film transistors are arranged in a same projection area, so that the display can realize the functions of pixel self-driving, ultra-narrow frame and the like while maintaining a larger pixel aperture ratio; and the common electrode of the first thin film transistor and the grid electrode of the second thin film transistor are formed by the same layer of the transparent conductive material, so that the number of masks and the cost are saved.
Owner:NANJING CEC PANDA FPD TECH CO LTD +2
Friction electric rotational speed sensing device, shaft assembly and calibration method
PendingCN110646632ASelf-drivingSimple structureTesting/calibration of speed/acceleration/shock measurement devicesDevices using electric/magnetic meansClassical mechanicsControl theory
The invention discloses a friction electric rotational speed sensing device, a shaft assembly and a calibration method. The friction electric rotational speed sensing device comprises a rotor structure and a stator structure, wherein the rotor structure comprises a rotor substrate plate and a pair of rotor friction, a rotation piece fixedly sleeves the rotor substrate plate, the stator structure comprises a stator substrate plate and a pair of stator friction, the stator substrate plate is fixedly arranged relative to the rotation piece, the pair of stator friction is in contact with the pairof rotor friction, the pair of rotor friction and the pair of stator friction rotate and friction relative to each other and are in live-line way when the rotation piece rotates, the pair of rotor friction is provided with a grid mouth, the pair of stator friction is arranged at the stator substrate plate by a first electrode and a second electrode, the first electrode and the second electrode areseparated from each other and are alternatively arranged along a circumferential direction of the rotation piece, the first electrode and the second electrode communicate with each other by a wire, and the first electrode and the second electrode can be alternatively overlapped with the grid mouth of the pair of rotor friction in an axial direction of the rotation piece. An external power supplyis not needed, the friction electric rotational speed sensing device is simple in structure and high in detection accuracy and stability and is easy to integrate.
Owner:BEIJING INST OF NANOENERGY & NANOSYST
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