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46results about How to "Solve fever" patented technology
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Method and system for real-time rending video based on OpenGL
InactiveCN105828182ASolve feverReduce usageDigital video signal modificationSelective content distributionComputer hardwareComputer graphics (images)
The present invention relates to a method and system for rendering real-time video based on OpenGL. The method comprises the following steps: using FFMPEG to write a decoding library of H264 data in the operating system of the GPU; initializing the size of the YUV window in the GPU; transmitting the network in real time The H264 data is decoded in the decoding library, and the decoded H264 data is decompressed according to macros and variables to obtain YUV data, and the YUV data is sent to the initialized YUV window; the initialized YUV is rendered on the screen by calling OpenGL The YUV data in the window, and display the video frame corresponding to the YUV data according to the defined width and height of the video frame in the YUV window. The invention reduces the utilization rate of the CPU and solves the problem of hot smart devices; at the same time, because OpenGL is used for rendering, the time for rendering a frame is much faster than the time for converting pictures, so the delay is not obvious when viewed for a long time.
Owner:北京思特奇信息技术股份有限公司
Power switching and controlling circuit
ActiveCN106356988AImprove efficiencySolve feverPower network operation systems integrationInformation technology support systemPower switchingEngineering
The invention provides a power switching and controlling circuit for controlling a power adapter or battery to supply power to a load. The circuit comprises a switching circuit and a controlling circuit, wherein the switching circuit comprises a first MOS (Metal Oxide Semiconductor) transistor, a second MOS transistor, and a third MOS transistor, and the source of the first MOS transistor is electrically connected with the positive electrode of the battery; the gate of the first MOS tube is electrically connected with the control circuit, and the drain of the first MOS transistor is electrically connected with the drain of the second MOS transistor; the gate of the second MOS transistor is electrically connected with the input terminal of the power adaptor, and the source of the second MOS transistor is electrically connected with a load and then is grounded; the source of the second MOS transistor is also electrically connected with the drain of the third MOS transistor, and the gate of the third MOS transistor is electrically connected with the control circuit; the source of the third MOS transistor is electrically connected with the input terminal of the power adaptor, and the control circuit controls the first MOS transistor and the third MOS transistor to be turned on or off. Compared with the traditional universal power switching and controlling circuit, the power switching and controlling circuit has the advantages of low power consumption, small amount of heat, and high standby efficiency.
Owner:ZHUHAI JIELI TECH
Remotely-controllable automobile cooling seat
InactiveCN104108332ASolve the problem of hot car seatsImprove the environment in the carSeat heating/ventillating devicesElectric/fluid circuitHeat sinkSupply energy
The invention discloses a remotely-controllable automobile cooling seat which is composed of an automobile seat body, a refrigeration device, an energy supply device and a control device. A cushion with air holes is arranged on the surface of the automobile seat body. The automobile seat body is internally provided with a ventilation pipeline and a ventilation opening. According to the refrigeration device, the semiconductor refrigeration technology is adopted, a radiation system composed of a bendable heat pipe, a fin-type radiating fin and an axial flow fan is arranged at the hot end of a semiconductor refrigeration chip, and the radiation strength is enhanced. The energy supply device is composed of a solar photovoltaic panel, a battery manager, a storage battery and a driving module, and absorbed solar energy is converted into electric energy to the maximum extent. Meanwhile, a temperature sensor is adopted to conduct real-time temperature sampling, a GSM module is adopted to be communicated with a core processor, and the functions of rapid remote control over the automobile seat temperature and short message reminding through mobile phone short messages are achieved. The remotely-controllable automobile cooling seat is simple in structure, efficient in operation and environmentally friendly and saves energy, the problem that the automobile seat is burning due to parking for a long time when it is hot is solved, and the riding comfort is improved.
Owner:HOHAI UNIV CHANGZHOU
Control method, control device, PFC circuit, motor driving equipment and air conditioner
ActiveCN111030442AHigh working reliabilitySolve feverElectronic commutation motor controlAC motor controlElectric machineHemt circuits
The invention relates to the field of PFC control and discloses a control method, a control device, a PFC circuit, motor driving equipment and an air conditioner. A phase voltage of each phase branchand a direct current bus voltage output by a three-phase PFC circuit are detected, a three-phase duty ratio signal conducted by a three-phase bidirectional switch tube is determined according to the phase voltage of each phase branch and the direct current bus voltage; a bidirectional switch driving signal of the three-phase bidirectional switch tube is determined according to the three-phase dutyratio signal; a forward switch driving signal of a forward switch tube and a reverse switch driving signal of a reverse switch tube of each phase are determined according to the phase voltage and thebidirectional switch driving signal, and finally, the forward switch tube and the reverse switch tube are respectively controlled to work according to the forward switch driving signal and the reverse switch tube. The problems that in a full-conduction scheme in the prior art, a switch tube such as an IGBT generates much heat and has reverse conduction risks are solved, and the problem of currentdistortion in a complementary conduction mode in the prior art is solved, so that the working reliability of the whole three-phase PFC circuit is improved.
Owner:广东希塔变频技术有限公司
Light supplement control circuit, DMS camera, fatigue driving monitoring system and automobile
PendingCN111416924AConsistent exposure timingSolve feverTelevision system detailsColor television detailsMonitoring systemEngineering
The invention relates to a light supplement control circuit, a DMS camera, a fatigue driving monitoring system and an automobile. The light supplement control circuit comprises an infrared light supplement lamp group, a switch circuit, a power supply input circuit and a sequential control input circuit. An input end of the sequential control input circuit is used for being connected with a DMS camera main control chip. And the time sequence control input circuit controls the on-off of the MOS tube according to the received time sequence signal transmitted by the main control chip, and therefore the working time sequence of the infrared light supplementing lamp group is kept synchronous with the exposure time sequence of the DMS camera. Based on the light supplement control circuit disclosed in the application, the infrared light supplementing lamp group and the DMS camera synchronously execute a time-sharing working mechanism, a segmented working time sequence strategy is realized, thedefects of high heat generation and obvious red storm are overcome, and the effects of reducing heat generation and weakening red storm are achieved.
Owner:合创汽车科技有限公司
Energy-saving environment-friendly type contactor
InactiveCN101320657AIncrease magnetic densitySolve feverInorganic material magnetismElectromagnetic relay detailsContactorEnvironmentally friendly
The invention discloses an energy-saving environmentally-friendly contact used in a power system with alternating current of 50Hz, rated voltage of 660V and current of 630A, comprising a casing and a coil installed within the casing, a movable iron core, an immovable iron core, an immovable contact, a movable contact and a spring; the coil is winded on the immovable iron core, the movable contact is fixedly installed on the movable iron core, the movable iron core and the immovable iron core are installed correspondingly, the immovable contact is installed on the casing and provided corresponding to the movable contact, the spring is installed between the movable iron core and the immovable iron core, the movable iron core or the immovable iron core adopts magnetic steel materials having high magnetic density after magnetization and free of remaining magnets after demagnetization, thus dramatically reducing power consumption of the contactor in operation, solving the issue about the heated coil and the heated iron core and prolongs the service life, the coil is prevented from being burned as the current and noise are not formed within the coil, and shaking resulted from impact of the power net is not present either, which prominently extends the service life of the contactor.
Owner:深圳市宝安任达电器实业有限公司
Wet high-speed rotating motor with double-toothed stator and rotor
InactiveCN105375658ASolve feverLong working hoursMagnetic circuit rotating partsMagnetic circuit stationary partsCouplingEngineering
The invention provides a wet high-speed rotating motor with a double-toothed stator and rotor. The wet high-speed rotating motor comprises a stator part, a rotor part, a front end cover with an oil inlet, and a rear end cover with an oil outlet, wherein the front end cover and the rear end cover are respectively mounted at the two ends of the stator part in a sealed way, the stator part is arranged at the outer ring of the rotor part, the two ends of the rotor part are respectively connected to the corresponding front and rear end covers in a coupling way, the stator part comprises a flux sleeve and a stator component, the two ends of the stator part are respectively connected with the corresponding front and rear end covers fixedly, and the flux sleeve is arranged at the outer ring of the stator part. The wet high-speed rotating motor has the main beneficial effects that an axial phase split is adopted to ensure simple structure and low cost; the lubricating manner is simple and reliable and is low in cost; the problem that the motor generates a large quantity of heat when the motor rotates at a high speed can be solved and therefore the continuous working time of the motor is prolonged.
Owner:ZHEJIANG UNIV OF TECH
Charging method and charging adaptor for mobile terminal
InactiveCN105449760ASolve feverImprove experienceElectric powerCharge maintainance charging/dischargingCharge currentEngineering
The invention discloses a charging method and a charging adaptor for a mobile terminal. The charging adaptor is used for charging the mobile terminal; the mobile terminal is provided with a first charging interface, a first charging circuit and a battery; the charging adaptor comprises a second charging interface, a third charging interface, a second charging circuit, a controller and a current output end, wherein the second charging interface is selectively connected with the first charging interface; when the second charging interface is connected with the first charging interface, the current output end outputs first charging current through the second charging interface to the first charging circuit to enable the first charging circuit to charge the battery according to the first charging current; and the controller controls the second charging circuit to generate second charging current and to charge the battery through the third charging interface. Through the mode, the problem of high heat generated in charging the mobile terminal is solved, and the user experience is improved.
Owner:HUIZHOU TCL MOBILE COMM CO LTD
Heat control method and heat control device
InactiveCN106163225ASolve feverSolve fever problemDigital data processing detailsUsing electrical meansTest objectEngineering
The invention provides a heat control method and a heat control device. The method comprises the following steps: detecting the distance between one or more areas of a terminal and a predetermined test object; performing heat insulation in a first area of the terminal, wherein the first area is an area of which the distance from the predetermined test object is smaller than a first predetermined threshold; and / or, performing heat dissipation in a second area of the terminal, wherein the second area is an area of which the distance from the predetermined test object is greater than a second predetermined threshold. Through the method and the device, the problem in the related technology that heating of terminal products cannot be handled effectively is solved, heating of terminal products is handled effectively, and the user experience is enhanced effectively.
Owner:ZTE CORP
Heat insulation part for non-combustible tobacco heater
The invention relates to a heat insulation part for a non-combustible tobacco heater. The heat insulation part is formed by bonding a silicon dioxide aerogel heat insulation felt, a nano graphene filmor an aerogel heat insulation paper through an adhesive. According to the heat insulation part, the problem that the outer wall of the non-combustion tobacco heater is hot in the using process is solved, the phenomenon that the surface temperature of electronic components in the smoking set is too high is effectively reduced, the problems that the working efficiency of smoking set components is reduced and working is unstable due to the too high temperature are effectively solved, meanwhile, the overall service life of the smoking set is prolonged, and the use feeling of consumers is improved.
Owner:深圳纯享自然科技有限公司
Composite support heat radiation structure of portable electronic device
ActiveCN107979943ANo local overheating problemGood man-machine experienceModifications by conduction heat transferEngineeringRadiation
Provided is a composite support heat radiation structure of a portable electronic device, comprising a front housing and a rear housing, which are suitable for a portable electronic device. The fronthousing and the rear housing are combined into an assembly in a corresponding manner. The front housing and the rear housing of the assembly are at least provided with a composite material composed oftwo or more layers of different rigid materials through integral forming. The composite material undergoes stamping forming and is placed into a die, forming an integral body having a frame, which isthe main support body of the front housing and the rear housing. A composite support heat radiation structure is formed, and the front housing is corresponding to the rear housing, forming a heat radiating system. The invention is advantageous in that composite material is used for heat radiation, the problem that a machine body of the portable electronic device gets hot or breaks down after long-time usage can be prevented due to the fact that heat radiated by the heat source of the electronic assembly is evenly scattered in the integral cavity through the composite support heat radiation structure, and after heat exchange with the external world, the temperature of the portable electronic device will be obviously reduced compared with the core temperature of the electronic device; the performance of the electronic device can be relatively and completely developed, and better man-machine experience for consumers can be provided.
Owner:SHENZHEN WEALTHY HIGH TECH MATERIAL CORP
Wire crimping terminal
InactiveCN103001019AImprove current carrying capacityEasy to process and produceConnections effected by permanent deformationMulticonductor cable end piecesFront and back endsEngineering
Owner:TYCO ELECTRONICS (SHANGHAI) CO LTD
Fireproof dust removal type cutting device for wood machining
InactiveCN108527531ASolve feverImprove dust collection effectCircular sawsBark-zones/chip/dust/waste removalWood machiningAtmospheric pressure
The invention discloses a fireproof dust removal type cutting device for wood machining. The cutting device structurally comprises a dust removal device, a machining host, anti-slide feet, an auxiliary base, a main motor, a positioning frame, a machining table and a cutting saw web, and the top end of the machining host and the right end of the bottom of the machining table are buckled. The cutting device has the beneficial effects that the dust removal device pushes a bevel push block when wood is pushed into the machining table to be machined, and then, a main transmission mechanism and a second transmission mechanism are controlled; the main transmission mechanism drives a linkage mechanism to control a starting mechanism to start a dust collection device; in addition, the second transmission mechanism drives a movable connector on a pneumatic press to be connected with an air cooling guide mechanism and communicate with vacuum air, and accordingly, the cutting saw web is subjectedto air cooling; when the cutting device is integrally used, the cutting saw web can be cooled, moreover, the situation that the wood is ignited at the high temperature is avoided, the wood dust collection effect is greatly improved, and further optimization is achieved.
Owner:南安易盾格商贸有限公司
Composite biomass gasification furnace
PendingCN110577845APrevent escapeAvoid burnsGasification processes detailsGasification apparatus detailsCarbon layerWater vapor
The invention discloses a composite biomass gasification furnace, which mainly comprises a gasification reaction chamber and a carbon layer gasification chamber for high-temperature reaction to generate fuel gas to form a composite gas. A biomass fuel is firstly subjected to a high-temperature cracking gasification reaction in the gasification reaction chamber to generate the fuel gas, the biomassfuel which is not completely reacted in the gasification reaction chamber is converted into biomass carbon which falls into the carbon layer gasification chamber, and then the high-temperature biomass carbon is subjected to an oxidation reduction reaction with incoming air below and water vapor generated by high temperature in a sealed water tank to generate carbon monoxide and hydrogen, so thatthe biomass fuel is converted into the fuel gas as much as possible. The composite biomass gasification furnace is characterized in that the structure is scientific, ingenious and compact, and a feedhopper with a double-layer structure can prevent the fuel gas from escaping during feeding. A hopper-cone-shaped material pulling disc prevents bridging and arching of a stock bin; a air supply pipe serves as a middle air inlet channel, and air inletting is more uniform without dead angles; a sealed water tank can prevent the fuel gas from leaking during ash discharge; and a slag breaking fire grate is extruded to break coking blocks formed by biomass ash at high temperature.
Owner:周勇
Efficient thermal insulation door for oven
InactiveCN103727776APrevent disseminationSolve feverHeating/cooling textile fabricsDrying chambers/containersThermal insulationEngineering
The invention discloses an efficient thermal insulation door for an oven. The efficient thermal insulation door comprises an outer door plate and an inner door plate, wherein the outer door plate and the inner door plate are connected with each other, an asbestos plate is arranged at the joint of the outer door plate and the inner door plate, and rock wool is arranged between the outer door plate and the inner door plate. Through the method, according to the efficient thermal insulation door for the oven, the heat preservation rock wool at different densities and the asbestos plate are adopted, and therefore heat in the oven is effectively prevented from being dissipated, the problem that the door plates are burning hot is solved, and the good heat preservation effect is achieved.
Owner:无锡市信文机械制造有限公司
Circulating cooling device for bentonite pulverizer
The invention discloses a circulating cooling device for a bentonite pulverizer. The circulating cooling device for the bentonite pulverizer comprises a pulverizer; the bottom of the pulverizer is provided with a motor; a pit is formed at the lower surface of the pulverizer; a first cooling water pond is arranged in the pit; the first cooling water pond is internally provided with a first flow water pipeline which is connected with the motor; the motor is provided with a water outlet pipeline; a second cooling water pond is arranged besides the pulverizer; the water outlet pipeline is connected in the second cooling water pond; the second cooling water pond is internally provided with a second flow water pipeline which is connected with the first cooling water pond; the first cooling water pond and the second cooling water pond are arranged, the cooling water flows to the motor through the first flow water pipeline so as to be cooled, the cooled hot water flows to the second cooling water pond through the water outlet pipeline, and the cold water flows to the first cooling water through the second flow water pipeline after the temperature of the hot water is reduced, so that the cooling water can be recycled. The circulating cooling device is simple in structure and low in input cost, the motor is effectively maintained, and the working efficiency is increased.
Owner:芜湖恒杰膨润土科技有限公司
Fuel adjusting system for heating furnace, fuel adjusting method and heating furnace
ActiveCN110017500ASolve feverExtended operating cycleFuel supply regulationAutomatic controlEngineering
The invention relates to a fuel adjusting system for a heating furnace, a fuel adjusting method and the heating furnace. The fuel adjusting system comprises a first temperature monitoring unit, a second temperature monitoring unit, a mixed temperature monitoring unit, a correction temperature calculating unit for calculating the first correction temperature TU1 and the second correction temperature TU2, a first fuel control unit and a second fuel control unit. The first fuel control unit is used for comparing the first correction temperature TU1 with the mixed temperature set value T, and theflow or pressure of first fuel is adjusted. The second fuel control unit is used for comparing the second correction temperature TU2 with the mixed temperature set value T, and the flow or pressure ofsecond fuel is adjusted. The fuel adjusting system for the heating furnace, the fuel adjusting method and the heating furnace solve the problems that during heating furnace two-path design, temperature influences and mixed main pipe temperature changes of the other path need to be considered for temperature adjustment of one path, the problem that due to the improper heating furnace single-path operation temperature, deviated combustion is caused is solved, the operation period of a furnace pipe is prolonged, and the automatic control level and the economic benefits of the device are improved.
Owner:WISON ENG
Transmission device integrating dynamic brake and planetary reducer
InactiveCN108426024ASolve feverReduce speedAxially engaging brakesGear lubrication/coolingDynamic brakingEngineering
The invention provides a transmission device integrating a dynamic brake and a planetary reducer. The transmission device integrating the dynamic brake and the planetary reducer has the advantages ofbeing ingenious and compact in structure, safe, reliable and long in service life. The transmission device comprises a shell assembly, a power input shaft, a sun gear, a planetary gear, a planetary carrier and the brake, wherein the power input shaft is arranged in the shell assembly, the sun gear sleeves the power input shaft, the planetary gear is arranged between the sun gear and the inner wallof the shell assembly, the planetary carrier is fixedly arranged on a shell assembly joint, and the brake is used for braking the shell assembly.
Owner:INI HYDRAULIC
LED ceiling down lamp
InactiveCN104748004ASolve feverExtended lighting rangePoint-like light sourceLighting heating/cooling arrangementsAdhesiveEngineering
The invention relates to the technical field of lamp illumination, in particular to an LED ceiling down lamp which comprises a lamp holder, a lamp cup and a lampshade. An LED lamp source is arranged in the lamp cup and is composed of a metal support and LED lamp beads. The metal support is of a hemispherical structure with a plurality of through holes. The LED lamp beads are fixed to the metal support through high-temperature-resistant adhesives. The lamp cup is made of aluminum alloy. Cooling fins are arranged on the outer surface of the cup body. The lampshade is made of organic glass. By means of the LED lamp source, the LED ceiling down lamp saves energy and is environmentally friendly; the cooling fins are arranged on the lamp cup, and therefore the problem that a lamp gets hot after being used for a long time is effectively solved; the LED lamp beads are arranged on the hemispherical metal support, and therefore the illumination range is enlarged, and the light source which is more uniform and efficient is obtained.
Owner:李国
Fireproof dedusting cutting device for wood processing
InactiveCN108839151ASolve feverImprove dust collection effectCircular sawsBark-zones/chip/dust/waste removalEngineeringMechanical engineering
The invention discloses a fireproof dedusting cutting device for wood processing. The fireproof dedusting cutting device for wood processing structurally comprises a dedusting device, a machining mainmachine, antiskid feet, an auxiliary base, a main motor, a positioning frame, a machining table face and a cutting saw blade, and the top end of the machining main machine and the right end of the bottom of the machining table face are buckled. The fireproof dedusting cutting device for wood processing has the beneficial effects that the dedusting device pushes a slope push block when wood is pushed into the machining table face to be processed, then a main transmission mechanism and a second transmission mechanism are controlled separately, the main transmission mechanism drives a linkage mechanism to control a starting mechanism to start a dust sucking device, in addition, the second transmission mechanism drives a movable connector on an air compressor to be connected with an air cooling guide mechanism and communicate with vacuum air pressure, then the cutting saw blade is air-cooled, the cutting saw blade can be cooled when the fireproof dedusting cutting device is wholly used, high-temperature ignition of the wood is avoided, the wood bit dust collection effect is greatly improved, and further optimization is achieved.
Owner:张冰冰
Permanent magnet rotating coupling induction type asynchronous speed regulation system of axial magnetic field structure
InactiveCN105871174AGood energy saving effectSolve feverPermanent-magnet clutches/brakesMechanical energy handlingPhysicsAutomatic control
The permanent magnet rotation coupling induction asynchronous speed regulation system with axial magnetic field structure is a permanent magnet rotation coupling induction automatic speed regulation system adopting the principle of asynchronous motor model, which has the advantages of isolating impact load, anti-low voltage blocking, high efficiency and energy saving, etc. , can be widely used in small and medium-sized motor drive and power transmission fields that require automatic speed regulation and high safety requirements. Its features are: the system consists of a permanent magnet rotary induction type asynchronous coupler body 1, a servo worm gear reduction mechanism 2, a cam-type stroke ejection adjustment mechanism 3, an automatic controller 4 and an AC asynchronous motor 5, which are integrated and installed to form electromechanical integration Structure: under the control of the automatic controller 4, the AC asynchronous motor 5 drives the permanent magnet rotor disc 1‑1 and the induction rotor disc 1‑2 to run asynchronously in the same direction, and the servo worm gear reduction mechanism 2 drives the cam type stroke ejection adjustment mechanism 3 Realize linear reciprocating motion to adjust the air gap length δ between the two rotor disks, so as to automatically adjust the output speed n 2 .
Owner:余虹锦
an intelligent terminal
ActiveCN105050369BImprove heat dissipationPrevent heat transferCooling/ventilation/heating modificationsEngineeringPrinted circuit board
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
An adjustable power supply cabinet lamp
ActiveCN110177416BSolve feverFix brightness inconsistenciesDc-dc conversionElectric variable regulationVoltage sourceControl theory
Owner:合肥畅想照明科技有限公司
Lubricating oil composition suitable for medical abrasive drill handle
ActiveCN111117745AImprove securityGuaranteed cleaning effectLubricant compositionChemistryProcess engineering
The invention discloses a lubricating oil composition suitable for a medical abrasive drill handle, belongs to the technical field of medical equipment maintenance, and aims at solving the problems that cleaning and lubricating of the medical abrasive drill handle need to be separated, cleaning oil has risks, and no special lubricating oil with cleaning and lubricating dual effects exists. The composition comprises: base oil formed by combining one or two of food and pharmaceutical grade white oil and IV base oil, accounting for 99.8%-96.0% of the total mass of the composition, at least one ashless detergent accounting for 0.1-2.0% of the total weight of the composition, and at least two ashless antioxidants accounting for 0.1-2.0% of the total weight of the composition. The composition provided by the invention has good detergency, volatility and safety, ensures that the residual quantity is almost zero after the composition is used for cleaning the medical abrasive drill handle, andis completely zero-residue after a disinfection process. The composition provided by the invention also has good oxidation resistance and lubricity, and has a slight faint scent.
Owner:兰州道合石化有限公司
Pile driving force adjusting device and hydraulic piling hammer
An embodiment of the present application provides a piling force adjustment device and a hydraulic piling hammer. The piling force adjustment device includes: a mounting frame, a force transmission cylinder, and an oil-gas booster cylinder. The force transmission cylinder is installed on the force transmission cylinder. The force transmission cylinder is connected with the oil-air booster cylinder through a hydraulic oil pipe, and the oil-air booster cylinder is used to adjust the pressure of the force transfer cylinder. The force transmission cylinder is connected with the oil-air booster cylinder. The cylinder is used to adjust the piling force of the hydraulic piling hammer. The embodiment of the present application can adjust the piling force of the hydraulic piling hammer, thereby improving the service life of the hydraulic piling hammer.
Owner:韶关市伟光液压油缸有限公司
Full-voltage high-frequency direct conversion isolation type safety power supply
ActiveCN113541456ASolution volumeSolve the costDc-dc conversionConversion without intermediate conversion to dcTransformerControl engineering
The invention relates to a full-voltage high-frequency direct conversion isolation type safe power supply, which comprises a high-frequency voltage transformation conversion device, a driving device and a synchronous signal generation device, and is characterized in that the high-frequency voltage transformation conversion device comprises a front-stage IGBT switch group, a high-frequency transformer and a rear-stage IGBT switch group which are connected in sequence, the input end of the front-stage IGBT switch group inputs a direct current or alternating current power supply, the rear-stage IGBT switch group outputs a direct current or alternating current power supply converted by the high-frequency transformer, the driving device comprises a signal driving module and a driving control circuit, the driving control end of the signal driving module is electrically connected with the front-stage IGBT switch group, the high-frequency transformer and the rear-stage IGBT switch group, the signal driving module is electrically connected with the driving control circuit, and the synchronous signal generation device comprises a synchronous fundamental wave circuit, a synchronous carrier wave circuit and a synchronous reduction circuit. The full-voltage high-frequency direct conversion isolation type safe power supply is used for solving the technical problems that an existing industrial frequency transformer is large in size, high in cost, low in conversion efficiency, large in loss and large in heat productivity.
Owner:华邦创科(惠州市)智能科技有限公司
Energy-saving desulfuration and denitrification dust collector for large boiler
ActiveCN102600695BSpeed up the flowReduced sulfur emissionsCombination devicesLighting and heating apparatusAir preheaterTower
Owner:HARBIN TIANDIKUAN ENERGY SAVING TECH
Grabbing arm type trash remover robot hydraulic control system
PendingCN112297034ASolve feverSolve lossWater cleaningGeneral water supply conservationHydraulic cylinderControl system
The invention discloses a grabbing arm type trash remover robot hydraulic control system. A main motion structure of a trash removing robot in the system is divided into a rail moving vehicle and a grabbing arm, and the rail moving vehicle is driven by a servo motor and used for conveying the grabbing arm to a trash removing position. The grabbing arm is driven by a hydraulic system, namely, threerotary joints of a large arm, a small arm and a grab bucket. The scheme of pump control and valve control is introduced, each oil cylinder is independently provided with a hydraulic pump set, the flow of a motor rotating speed control pump is changed in the manner that a variable-frequency or servo motor drives a hydraulic pump, the control system calculates the required flow of the oil cylindersin real time according to track planning, the variable-frequency or servo motor drives the hydraulic pump to set the flow according to the flow slightly larger than the required flow, and the movement direction and speed of the hydraulic cylinder are accurately controlled through a servo proportional valve. The problem of accurate control over the hydraulic oil cylinders is solved, meanwhile, theproblems of large heating and large energy losses of a servo pump station are solved, and therefore energy saving of the system is achieved.
Owner:安徽省六安恒源机械有限公司
Charging method and electronic equipment
ActiveCN111431249ASolve feverReduce charging currentBatteries circuit arrangementsElectric powerCharge currentProcess engineering
The embodiment of the invention provides a charging method and electronic equipment, and the method comprises the steps: detecting a touch operation acting on a touch screen of the electronic equipment under the condition that the electronic equipment is in a charging state; if it is detected that the frequency of the touch operation in the first touch area is larger than a first threshold value,reducing the charging current of a first charging module corresponding to the first touch area or closing the first charging module. According to the embodiment of the invention, the use of a heat dissipation material is reduced while the charging temperature rise of the touch area is reduced, and the charging current of the whole machine is improved to the maximum extent, so that the charging time is shortened, and the user experience is improved.
Owner:VIVO MOBILE COMM CO LTD
Teaching experiment power supply equipment
PendingCN113099649AAvoid circulationEffective attachmentCasings/cabinets/drawers detailsCleaning using toolsFan bladeBrush
A teaching experiment power supply device disclosed by the present invention structurally comprises a power supply box, operation keys, a teaching table and a slide rail, the surface of the power supply box is integrally embedded and connected with the operation keys, the lower end of the power supply box is in sliding fit with the interior of the slide rail, the bottom of the slide rail is fixed with the bottom end in the teaching table through bolts, and the interior of the teaching table is integrally embedded and connected with the power supply box. The power supply box comprises a triangular support, a control panel, a radiator and a buckle, and the inner side of the triangular support is in clearance fit with the outer side of the radiator. The teaching experiment power supply device is driven by a cleaning disc embedded under the same driving force with fan blades , a cleaning rod is matched with a rotating wheel on the surface of a guide rail to rotate the surface of a shutter, so that a fixed rod is driven through rotation, a swing ring is matched with the top end of a brush rod to swing in the driving process, and the swing area is enlarged; dust and fluff attached to the surface of the shutter are effectively cleaned, and the problems that the shutter of equipment is attached, the internal heat is too high, and the equipment is hot are effectively solved.
Owner:何祖添
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