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Wafer transfer method and device
InactiveCN102376608AAvoid FragmentsImprove stabilityConveyor partsEngineeringElectrical and Electronics engineering
The invention relates to a wafer transfer method and device. The method comprises the following steps of: detecting whether a wafer deviates from a designated position; and stopping transferring the wafer when the wafer deviates from the designated position. According to the invention, before the wafer is transferred, whether the wafer deviates from the designated position is detected, and when the wafer deviates from the designated position, a wafer storing and lifting device is stopped transferring the wafer, thereby avoiding the problem of wafer fragment because the wafer deviating from the designated position is continued to be transferred, further improving the stability and safety of wafer transfer, reducing the fragment percent and greatly saving cost.
Owner:CSMC TECH FAB1 +1
Heat pump system and control method thereof
PendingCN108759169AImprove the ability to start the freezerEasy to useHeat pumpsCoil arrangementsEngineeringElectromagnetic heating
The invention discloses a heat pump system and a control method thereof. The heat pump system comprises an outdoor heat exchanger and an electromagnetic heating assembly; the electromagnetic heating assembly comprises an induction heating sheet, a heat insulation plate and an electromagnetic induction electric wire coil; and the induction heating sheet makes contact with the outdoor heat exchanger, the electromagnetic induction electric wire coil is attached to the heat insulation plate, the heat insulation plate is connected with the outdoor heat exchanger or the induction heating sheet, andthe induction heating sheet is in communication connection with the electromagnetic induction electric wire coil. According to the heat pump system, the electromagnetic heating assembly can heat the outdoor heat exchanger, accordingly, the defrosting efficiency and the heating efficiency of the outdoor heat exchanger can be improved, the frozen machine starting capacity of the heat pump system isimproved, the situation that the reliability of a compressor is reduced to the fact that the temperature of exhaust air is not high enough is avoided, and the using performance of the heat pump systemcan be improved. In addition, the electromagnetic heating assembly adopts the magnetic field principle to release heat, has the high safety performance and in addition has the advantages of being simple in structure, high in heating precision and easy to control.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
TSV (through silicon via) high-frequency three-dimensional integrated interconnection structure based on SOI (silicon on insulator)
ActiveCN103633045AAffect work performanceImprove reliabilitySemiconductor/solid-state device detailsSolid-state devicesInsulation layerSoi substrate
The invention provides a TSV (through silicon via) high-frequency three-dimensional integrated interconnection structure based on SOI (silicon on insulator). An internal cylindrical TSV through hole is coaxial with an external annular TSV through hole, in addition, benzocyclobutene resin insulation glue is filled between the internal cylindrical TSV through hole and the external annular TSV through hole, the external annular STV through hole sequentially comprises a silicon dioxide insulation layer, a blocking layer TaN, a copper seed layer and a hollow copper post from outside to inside, the internal cylindrical TSV through hole also sequentially comprises a silicon dioxide insulation layer, a blocking layer TaN, a copper seed layer and a cylindrical copper post from outside to inside, the silicon dioxide insulation layers, the blocking layers TaN, the seed layers, the hollow copper post and the copper post all penetrate through top layer silicon, a silicon dioxide buried oxide layer and bottom layer silicon of an SOI substrate in the longitudinal direction. The TSV high-frequency three-dimensional integrated interconnection structure has the advantages that the area of a chip is greatly reduced, in addition, signals are mutually insulated and isolated, the electricity leakage consumption and the noise coupling crosstalk are reduced, the signal transmission quality is improved, the reliability of three-dimensional integrated devices is enhanced, and the application requirements of radiation-proof reinforcement of high-frequency three-dimensional integrated devices can be met.
Owner:珠海天成先进半导体科技有限公司
Integrated type water-cooling heat dissipation mechanism of deformable mirror
ActiveCN103278923AImprove heat transfer efficiencyImprove stabilityOptical elementsHeat sinkEngineering
The invention discloses an integrated type water-cooling heat dissipation mechanism of a deformable mirror. The integrated type water-cooling heat dissipation mechanism of the deformable mirror comprises a heat sink, a mirror body, an actuating element and two water connectors, wherein a containing groove is formed in the heat sink, the top of the containing groove is open, a water inlet and a water outlet are formed in the heat sink, a plurality of mirror legs are arranged on the heat sink, and each mirror leg is arranged on the heat sink in a penetrating mode in the vertical direction. The mirror body is arranged on the top of the heat sink, and the lower surface of the mirror body is connected with the upper surface of each mirror leg. A plurality of actuating legs are arranged on the actuating element, each actuating leg is connected with the lower surface of one mirror leg, and therefore the amount of deformation of the mirror body is controlled through control over the amount of actuating of each actuating leg. The two water collectors are communicated with the water inlet and the water outlet respectively. According to the integrated type water-cooling heat dissipation mechanism of the deformable mirror, heat of laser penetrating through the mirror body can be adsorbed by cooling liquid in the heat sink, so that the phenomenon that working performance of the actuating element is influenced by radiation of the laser penetrating through the mirror body is avoided. Therefore, the amount of deformation of the mirror body will not be influenced by fluctuation of the temperature, and stability of the deformable mirror is improved.
Owner:TSINGHUA UNIV
An alarm circuit for bad heat dissipation of automobile engine water tank
InactiveCN102269041AAffect work performanceMachines/enginesEngine cooling apparatusInlet temperatureEngineering
The invention relates to an alarm circuit for poor heat dissipation of an automobile engine water tank. The automobile engine radiator poor heat dissipation alarm circuit includes a power supply branch, a temperature measurement branch and an alarm branch connected in sequence. The power supply branch provides working voltage, and the temperature measurement branch measures the inlet and outlet temperatures of the water tank. When the temperature at the inlet or outlet of the water tank is too high, the alarm branch will alarm. When the inlet temperature of the water tank of the automobile engine is too high or the outlet temperature is too high, the alarm light will be on, prompting the driver or maintenance personnel to check the engine cooling system in time to prevent the engine from overheating and affecting the engine's working performance.
Owner:龚文资
Multifunctional explosion-proof vehicle-mounted battery box
ActiveCN107482141AAchieve double explosion-proof effectGood explosion-proofCell temperature controlCell sealing materialsPower batteryElectrical and Electronics engineering
The invention relates to a multifunctional explosion-proof vehicle-mounted battery box. The explosion-proof box is arranged on an automobile chassis, is equipped with power batteries and comprises a box cover (1), a box body (2) and a plurality of unitary battery boxes (3) arranged in the box body (2) and used for accommodating single power batteries (4), wherein the unitary battery boxes (3) are of a sealing structure, an explosion-proof valve (6) is arranged above each unitary battery box (3), and an explosion-proof protection valve is arranged on the box body (2). Compared with the prior art, the explosion-proof box is excellent in explosion-proof performance, multifunctional, safe and reliable.
Owner:SHANGHAI UNIV OF ENG SCI
Hydraulic control valve assembly
ActiveCN105782466AAffect work performanceOperating means/releasing devices for valvesValve members for absorbing fluid energyHydraulic cylinderEngineering
The invention relates to a hydraulic control valve assembly. The hydraulic control valve assembly comprises a control valve, a hydraulic cylinder and a connecting rod, wherein the control valve comprises a valve body, a valve rod and a valve plate, a medium flow channel is formed in the valve body, one end of the medium flow channel is an inlet end, the other end is an outlet end, and the valve plate is located between the inlet end and the outlet end; the hydraulic cylinder comprises a cylinder body, an inner cavity is formed in the cylinder body, a piston is arranged in the inner cavity and divides the inner cavity into a first cavity body and a second cavity body, the piston is provided with a piston rod extending into the first cavity body, the connecting rod is hinged with the piston rod, the first cavity body communicates with the outlet end, the second cavity body communicates with the inlet end, a connecting position of the valve plate and the valve rod is located above the center of the valve plate, and a drive structure is arranged between the connecting rod and the valve plate. With adoption of the technical scheme, the hydraulic control valve assembly can realize slow opening of the valve and can realize first rapid closing and then slow closing of the valve, so that a pipeline water hammer can be eliminated, and the safety of a pipeline system can be protected.
Owner:正洲泵阀制造有限公司
Display panel and display device
ActiveCN111128969AImprove the problem that cannot be displayed normallyImprove antistatic performanceSemiconductor/solid-state device detailsSolid-state devicesDisplay deviceEngineering
The invention discloses a display panel and a display device. The display panel comprises a substrate and an electrostatic protection structure, wherein the electrostatic protection structure is located on the substrate; the electrostatic protection structure is arranged around at least part of a display area of the display panel; the electrostatic protection structure comprises at least two layers of patterned structures, namely, a first patterned structure and a second patterned structure; the second patterned structure is located on the side, which is away from the substrate, of the first patterned structure; the first patterned structure and the second patterned structure are arranged on adjacent metal layers respectively; and a dielectric layer is arranged between the first patternedstructure and the second patterned structure; in the direction perpendicular to the display panel, the first patterned structure and the second patterned structure have at least one overlapping area;an acute included angle is formed between the extending direction of the first patterned structure and the extending direction of the second patterned structure in the overlapping area; and the firstpatterned structure is provided with a concave part corresponding to the overlapping area. According to the technical scheme, the antistatic capacity of the electrostatic protection structure is optimized.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
Automobile refrigerant filling and recycling system
InactiveCN106931692AHigh precisionIncrease vacuumRefrigeration componentsInjection portAutomobile air conditioning
The invention relates to a vehicle refrigerant filling and recovery system, which includes a refrigerant recovery and filling device, a steel cylinder, a vacuum pump, a balance scale and a pressure detection unit. The vacuum pump, the steel cylinder, the refrigerant recovery and filling device, and the pressure detection unit are connected in sequence. The pressure detection unit is connected to the refrigerant injection port of the automobile air conditioner, the balance is used for weighing the refrigerant in the steel cylinder, and also includes a control unit, and the control unit is connected to the refrigerant recovery and filling device, The control unit includes an electrical switch, a relay module, a power supply module and an indicator module connected in sequence, the electrical switch is connected to a 220V power supply, and the relay module is connected to the refrigerant recovery and filling device. Compared with the prior art, the invention has the advantages of lower cost, good stability and high precision.
Typhoon-resistant drilling riser buoyancy tank device
InactiveCN103112555AEasy to installImprove installation efficiencyFloating buildingsPipingDrilling riser
The invention relates to a typhoon-resistant drilling riser buoyancy tank device characterized by comprising two buoyancy tank units, wherein each buoyancy tank unit is in a semi-cylinder shape and composed of four independent buoyancy tank cavities, and the buoyancy tank units are connected to form the complete buoyancy tank device through bolts. The upper portion of each buoyancy tank unit is provided with a gooseneck, each gooseneck is provided with a supporting beam, the upper portion of each buoyancy tank cavity is provided with an air inlet pipe, the other end of each air inlet pipe is connected with each gooseneck, each air inlet pipe is provided with an independent valve control switch, the lower portion of each buoyancy tank cavity is provided with a water drainage pipe, and each water drainage pipe is in an inverted L shape. The typhoon-resistant drilling riser buoyancy tank device is simple and convenient to install and high in safety and reliability, a plurality of the cavities are chosen for inflation and exhausting of air so as to achieve the aim of controlling buoyancy, and work requirements of deepwater drilling and ultra deepwater drilling are met.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Optimal initial position and posture determination method of flexible supporting series industrial robot operation
ActiveCN108527368AImprove computing efficiencyAvoid wasting time searchingProgramme-controlled manipulatorRobotic systemsKinematics
The invention discloses an optimal initial position and posture determination method of flexible supporting series industrial robot operation, and belongs to the field of flexible supporting industrial robot system trajectory planning. The method mainly comprises the following steps that firstly, a kinematics positive solution model is established through a D-H rule; then, a set of initial valuesare reasonably selected, and a set of inverse solutions of an equation set is solved by using an fsolve function on the basis of the inverse solution equation set; next, the set of inverse solutions is taken as a bridge to roughly search for other symmetrical inverse solution initial values according to the symmetry characteristic of the working space of the robot, and other accurate inverse solutions are obtained by using the fsolve function; and finally, the size relation of the reaction force system (including force and moment) generated in the operation process of different position and posture of robot joints corresponding to different inverse solutions of the same position and posture of the robot is analyzed, wherein the position and posture which does not collide with the workpieceand corresponds to the minimum value of the reaction force system is the the optimal initial position and posture of the flexible supporting series industrial robot operation to be described.
Owner:TSINGHUA UNIV +1
Magnetorheological material-based high-efficiency rotating speed control device
ActiveCN107612441AHigh directnessImprove energy conversion efficiencyElectric generator controlParticle chainsEngineering
The invention discloses a magnetorheological material-based high-efficiency rotating speed control device, and belongs to the field of rotating speed control of Fuze turbine generators. The magnetorheological material-based high-efficiency rotating speed control device comprises an upper cover, an inner cylinder, a housing, a bottom, excitation coils, magnetic cores and a magnetorheological material, wherein the upper cover, the inner cylinder, the housing and the bottom form a substrate; a peripheral device comprises a turbine generator; the excitation coils are arranged between the inner cylinder and the housing and are vertical to a rotating shaft of the generator, so that the magnetic particle chaining direction in the magnetorheological material is vertical to the rotating shaft of the generator; magnetic core positioning slots are formed in the inner side of the housing and the outer side of the inner cylinder separately, circular grooves are adopted by the positioning slots andthe connection line of circle centers of each pair of positioning slots horizontally passes through the axis of the rotating shaft; and the diameters of the magnetic cores are matched with those of the corresponding grooves and the magnetic cores pass through the inside of the corresponding excitation coils through the matched positioning slots. According to the magnetorheological material-based high-efficiency rotating speed control device, improvement of the energy conversion efficiency of the magnetorheological material is achieved by combining the magnetic characteristics of the magnetorheological material.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Cooling water circulation system applicable to high-flow test platform
The invention discloses a cooling water circulation system applicable to a high-flow test platform. The back of barreled distilled water is connected with a small water pump. The periphery of a water tank is connected with the small water pump, a first manual stop valve and a second manual stop valve. A damping block is placed at the bottom of the water tank. A water pipe in the water tank is connected with a first hose. The damping block is located under the water pipe. A first pressure sensor, a first temperature sensor and a first pressure meter are arranged on the water pipe and used for detecting state parameters of the distilled water. The water pipe is provided with a tee joint connected with a third manual stop valve. The second manual stop valve is connected with a second hose. A water inlet of a high-pressure water pump is connected with the second hose. A water outlet of the high-pressure water pump is connected with a third hose and a second pressure meter. The rear portion of the third hose is provided with a tee joint connected with a safety valve and a flow regulating valve. The flow regulating valve is provided with a tee joint connected with a fourth manual stop valve and a filter. The rear portion of the filter is provided with a tee joint connected with a third pressure meter and a solenoid valve; the rear portion of the solenoid valve is connected with a flowmeter. The outer end of the flowmeter is connected with a fourth hose. A second pressure meter and a second temperature sensor are connected between the flowmeter and the fourth hose. The two ends of a test piece are connected with the fourth hose and the first hose respectively.
Owner:BEIHANG UNIV
Quick connection three-way module and special drilling mold module for drilling
InactiveCN108825909AGuaranteed not to deviateQuality assuranceBranching pipesDrill jigsHardnessCorrosion
The invention discloses a quick connection three-way module and a special drilling mold module for drilling. When a quick connection tee joint is mounted, a quick connection tee joint drilling mold isfirstly mounted on a pipe which is needed to add branch pipes; a drilling mold sleeve is in threaded connection with the drilling mold to achieve replacement; the sleeve adopts a metal material withhigher hardness; through a limiting effect of the drilling mold sleeve, no deviation of a hole expander in the hole expanding process is guaranteed, and the hole expanding quality is guaranteed; and the size of the drilling mold sleeve is changed to meet the requirements of different sizes of holes drilled by different drilling molds. After the hole expansion is finished, a fastening bolt is loosened, the drilling mold is taken down, and a quick connection tee joint body is mounted; and through a lengthening part of the quick connection tee joint body, the accuracy of the mounting position isguaranteed when the quick connection tee joint is mounted. When the quick connection tee joint is vertically mounted, deposited liquid flows out through a breach on the lengthening part of the quick connection tee joint body, so that the influence on the working efficiency of pipes by long-time deposition of fluids in the lowest points of the pipes is prevented, the corrosion is prevented, and theservice life of the pipes is prolonged.
Owner:大连派普路科技有限公司
On-line gas multipoint sampling detection equipment
PendingCN112539976AEasy to sampleImprove efficiencyWithdrawing sample devicesGas detectorGaseous detectors
The invention relates to on-line gas multipoint sampling detection equipment which comprises a gas detector, a gas pump and a plurality of detection heads, wherein a gas outlet of the gas pump is communicated with the gas detector through a gas outlet pipe, and a gas inlet of the gas pump is communicated with a gas inlet pipe; the plurality of detection heads are respectively communicated with thegas inlet pipe through branch pipes, and each branch pipe is provided with a valve. The equipment has the beneficial effects that multi-point successive sampling or multi-point mixed sampling can berealized, the sampling is convenient, the sampling efficiency is greatly improved, and the cost is relatively low.
Owner:XINJIANG HUATAI HEAVY CHEM CO LTD +1
Down jacket down filling device
InactiveCN109043687AExtended stayEasy to separateOvergarmentsClothes making applicancesSpiral bladeEngineering
The invention belongs to the field of garment processing, and particularly discloses a down jacket down filling device which comprises a down filling box and a feed cylinder located at the upper portion of the down filling box. The down filling box comprises a cylinder, a draught fan, a baffle, a spiral blade located in the cylinder and a rotating shaft. A movable plate is arranged on the upper side of the down filling box. The feed cylinder is communicated with the down filling box through the movable plate capable of horizontally sliding. The spiral blade is fixedly connected to the rotatingshaft. The upper portion of the cylinder is fixedly connected to the inner wall of the down filling box. The lower portion of the cylinder is fixedly connected to the bottom of the down filling box through the baffle. The draught fan is installed on the inner wall of the down filling box. Gas holes are formed in the side wall of the side, close to the draught fan, of the down filling box. A plurality of sieve holes are distributed in the surface of the side, close to the gas hole of the down filling box, of the cylinder. Gas inlets for gas flow of the draught fan to flow in are distributed inthe other side of the cylinder. A slidable filter board is arranged on the outer wall of the cylinder. After the technical scheme is adopted, it is avoided that high-quality down blocks the sieve holes when the down is screened and separated in the down filling box.
Owner:重庆思哥维服装有限公司
Frequency converter for generator set
ActiveCN110190730APlay a cooling roleAffect work performanceElectrical controlGeneration protection through controlFrequency changerElectromagnetic interference
A frequency converter for a generator set according to the invention comprises a casing, wherein a side wall of the casing is provided with a control panel and a binding post, and the upper end surface of the casing is provided with a plurality of heat dissipation holes; and a radiator disposed on the other side wall of the casing and including a box body filled with an insulating coolant, whereinthe box body comprises a left end cover and a right end cover which are connected through an insulating strip, the left end cover is connected to 0V ground, the right end cover is grounded, the outerwall of the left end cover is provided with a heat conduction silicone grease layer, a shielding layer is disposed in the middle of the heat conduction silicone grease layer, the shielding layer is connected to the 0V ground, and a side of the heat conduction silicone grease layer away from the box body is fixedly connected with the side wall of the casing. The frequency converter for the generator set has higher heat dissipation efficiency and is resistant to electromagnetic interference.
Owner:YANCHENG JIANGDONG GASOLINE ENGINE MFG +1
Magnetic-pole-assisted unbalanced magnetic control sputtering device
ActiveCN106637109AImprove uniformityUniform thicknessElectric discharge tubesVacuum evaporation coatingMicrostructureElectrical and Electronics engineering
Owner:重庆花喜鹊科技有限公司
Air intake cooling structure of new energy automobile charging pile
InactiveCN107911991AAvoid harmImprove sealingCharging stationsCasings/cabinets/drawers detailsAir cycleNew energy
The invention discloses an air intake cooling structure of a new energy automobile charging pile, comprising four pillars. The top of four pillars is provided with a charging pile. The bottom plate ofthe charging pile is composed of a plurality of air guide plates, and rectangular ventilation holes are evenly arranged at an equal interval in the adjacent air guide plates. The charging pile comprises an inner layer body and an outer layer body. A hollow sandwich layer is arranged between the inner layer body and the outer layer body. The outer layer body is internally provided with a mountingrod, a cooling mechanism and a filter screen layer, the filter screen layer is arranged below the inner layer body, the cooling mechanism includes a wet curtain and two exhaust fans, the two exhaust fans are respectively arranged at the left and right ends of the lower surface of the top end of the inner cavity of the outer layer body, and the wet curtain is arranged above the filter screen layer.The air intake cooling structure can realize the function of air intake cooling for new energy car charging piles, the air circulation inside the charging pile and accelerate the spread of heat, thereby preventing the heat generated during the work process of a power module in the charging pile from damaging the charging pile.
Owner:ANHUI POLYTECHNIC UNIV
Middle type water-cooling heat dissipation mechanism of deformable mirror
InactiveCN103278925AImprove stabilityImprove heat transfer efficiencyOptical elementsEngineeringHeat sink
The invention discloses a middle type water-cooling heat dissipation mechanism of a deformable mirror. The middle type water-cooling heat dissipation mechanism of the deformable mirror comprises a mirror body, a heat sink, an actuating element and two water connectors, wherein a containing groove is formed in the heat sink and used for containing cooling liquid, a water inlet and a water outlet are formed in the heat sink and communicated with the containing groove, and the heat sink is arranged under the mirror body. A plurality of actuating legs are arranged on the actuating element, each actuating leg penetrates through the heat sink to be in contact with the lower surface of the mirror body, and therefore the amount of deformation of the mirror body is controlled through control over the amount of actuating of each actuating leg. The two water collectors are communicated with the water inlet and the water outlet respectively. According to the middle type water-cooling heat dissipation mechanism of the deformable mirror, heat of laser penetrating through the mirror body can be adsorbed by the cooling liquid in the heat sink, heat conduction efficiency is high, so that the phenomenon that working performance of the actuating element is influenced by radiation of the laser penetrating through the mirror body is avoided. Therefore, the amount of deformation of the mirror body will not be influenced by fluctuation of the temperature, and stability of the deformable mirror is improved. In addition, the middle type water-cooling heat dissipation mechanism of the deformable mirror is simple in structure.
Owner:TSINGHUA UNIV
Steaming and baking oven, control method of steaming and baking oven and integrated cooker with steaming and baking oven
ActiveCN111603036AAffect work performanceGuaranteed stabilityDomestic stoves or rangesLighting and heating apparatusProcess engineeringSteaming
The invention provides a steaming and baking oven, a control method of the steaming and baking oven and an integrated cooker with the steaming and baking oven. The steaming and baking oven comprises ashell and a steaming and baking inner container used for containing food to be steamed and baked, the steaming and baking inner container is located in the shell, a heating device is arranged in thesteaming and baking inner container, a containing cavity is formed between the shell and the steaming and baking inner container, and a heat dissipation device and a steam generation device are arranged in the containing cavity. The heat dissipation device comprises a first heat dissipation fan located at the top of the steaming and baking inner container and a second heat dissipation fan locatedat the bottom of the steaming and baking inner container. An air guide plate assembly is arranged in the containing cavity, at least one heat dissipation area is defined by the air guide plate assembly in the containing cavity, and the heat dissipation area is communicated with at least one of the first heat dissipation fan and the second heat dissipation fan. The heat dissipation effect of the steaming and baking oven can be improved, and the temperature of the whole steaming and baking oven in the working process is effectively reduced, so that the working stability and safety of the steaming and baking oven and the integrated cooker are guaranteed, and meanwhile, the service life of the steaming and baking oven and the integrated cooker is prolonged.
Owner:QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD +1
Control circuit and control method applied to resonance circuit
PendingCN110350801AStable working conditionAffect work performanceEfficient power electronics conversionDc-dc conversionControl modeFeedback circuits
The invention discloses a control circuit applied to a resonance circuit. The control circuit comprises a feedback circuit, a frequency control circuit, a current control circuit, a driving circuit, and a selection and control circuit; the feedback circuit is used for detecting the voltage signals of the output current of the resonance circuit and comparing the voltage signals with preset reference signals, and outputting feedback signals reflecting the magnitude of the output current; the frequency control circuit is used for controlling the resonance circuit to be in a frequency control modeaccording to the feedback signals; the current control circuit is used for controlling the resonance circuit to be in a current control mode according to the feedback signals; the driving circuit isused for providing driving signals for the resonance circuit according to control signals outputted by the frequency control circuit or the current control circuit; the selection and control circuit is used for comparing monitoring signals generated by a monitoring end with a preset threshold value, controlling the frequency control circuit to work when the monitoring signals are larger than the preset threshold value, or controlling the current control circuit to work when the monitoring signals are smaller than or equal to the preset threshold value. With the control circuit adopted, the problem that the output energy of the resonance circuit is too high in the prior art can be solved.
Owner:INVENTRONICS HANGZHOU
Insulated piercing wire clip
InactiveCN103001018AReasonable structural designStrong pressure resistanceElectric connection structural associationsContact members penetrating/cutting insulation/cable strandsEngineeringMechanical engineering
Owner:YUEQING KEYI ELECTRIC GROUP
Design method of novel ultrasonic grinding vibration system
PendingCN110990976AAffect work performanceRealize high-precision designGeometric CADSustainable transportationPhysicsDesign Error
The invention discloses a design method of a novel ultrasonic grinding vibration system. The novel ultrasonic grinding vibration system comprises an ultrasonic amplitude-change pole and a grinding wheel disc fixedly connected with a small end of the ultrasonic amplitude-change pole, the length of the ultrasonic amplitude-change pole is L, the outer diameter of a large end of the ultrasonic amplitude-change pole is R1, the outer diameter of a small end of the ultrasonic amplitude-change pole is R2, and the outer diameter of the grinding wheel disc is R3. The method comprises the following steps: S1, determining the length L of the ultrasonic amplitude-change pole, calculating an L value according to a formula sinkL=0, wherein the L value is wavelength is one half or integral multiple of that of the ultrasonic wave; S2, establishing a disc bending vibration frequency equation and determining R3 of the grinding wheel disc. According to the method, the problem that an existing design method is large in design error is solved, the high-precision design of the ultrasonic grinding vibration system is achieved, and the later debugging time and cost are reduced.
Owner:DALIAN JIAOTONG UNIVERSITY
Gateway equipment mounting and placing device
InactiveCN112097036AEven heat dissipationImprove cooling effectStands/trestlesVibration suppression adjustmentsEngineeringPulley
The invention is applicable to the technical field of computer gateway equipment, and provides a gateway equipment mounting and placing device. The gateway equipment mounting and placing device comprises a shell, sliding cavities, a temperature sensor, a processor and a fixed plate; the sliding cavities are fixed to the side walls of an inner cavity of the shell, and sliding blocks are slidably arranged on the sliding cavities; the temperature sensor is used for monitoring the internal temperature of the shell, and the processor is used for processing a temperature signal; the fixed plate is arranged at the top of the inner cavity of the shell, a gear is rotationally arranged on the fixed plate, the two sides of the gear are meshed with toothed plates, the toothed plates are arranged on the fixed plate in a sliding mode, and a sliding frame is fixed onto one toothed plate; a first power piece is fixed inside the shell, a connecting rod is fixed to an output shaft of the first power piece, and a boss is arranged at the end part of the connecting rod and is arranged in the sliding frame; and the two toothed plates are connected with the sliding blocks on the two sides of the inner cavity of the shell through connecting ropes correspondingly, fans are arranged on the sliding blocks, and pulleys are arranged inside the shell and are used for supporting the connecting ropes. According to the embodiment, the heat dissipation effect of gateway equipment can be improved, so that good work of the gateway equipment is facilitated.
Owner:SUZHOU YAOKAI INFORMATION TECH CO LTD
Glass steel high-efficiency counter flow cooling tower
ActiveCN109827447AImprove cooling effectAccurate and sufficient coolingTrickle coolersGlass fiberCooling tower
The invention belongs to the technical field of cooling tower equipment, and particularly relates to a glass steel high-efficiency counter flow cooling tower which comprises a base, a frame body, a casting plate, a water pre-storing tank, a spraying mechanism, a distributing and cooling mechanism and a water outlet pipe. The water pre-storing tank is fixedly arranged on the outer surface of the upper end of the frame body; the spraying mechanism is arranged at the upper end of the inner part of the frame body and is formed by a fan, a spraying plate, a dispersing ring, a water conveying pipe,a distributing groove, a distributing pipe and a motor; the dispersing ring is rotatably arranged in the spraying plate; a fan is fixedly connected to the lower end of the spraying plate; the dispersing ring is fixedly connected to the upper surface of the inner end of the frame body; the water conveying pipe is uniformly and fixedly connected the outer end of the dispersing ring; the casting plate is fixedly arranged on the inner side wall of the frame body and is in a concave shape; and the distributing and cooling mechanism is arranged under the casting plate. The glass steel high-efficiency counter flow cooling tower provided by the invention is mainly used for solving the problems that an existing glass fiber reinforced plastic manufacturing cooling tower is complicated in structure,high in manufacturing cost, and non-ideal in cooling effect so as to retard the industrial production rhythm.
Owner:松阳永信机械制造有限公司
Corrosion-resistant hard alloy and application thereof in aspect of preparation of artificial board saw
ActiveCN111321334AImprove corrosion resistanceHigh hardnessTurbinesOther manufacturing equipments/toolsCemented carbideCorrosion resistant
The invention discloses a corrosion-resistant hard alloy. Rhenium is added into a bonding phase, the bonding phase in the hard alloy is strengthened, and the purposes of improving hardness and corrosion resistance of the hard alloy are achieved. The hard alloy provided can be applied to the preparation of an artificial board saw, the hardness of the prepared artificial board saw is high, the cutting efficiency of the artificial board saw is favorably improved, meanwhile, the chemical corrosion of an adhesive in an artificial board can be resisted, and the service life of the artificial board saw is greatly prolonged.
Owner:OKE PRECISION CUTTING TOOLS CO LTD
Spliced computer case
InactiveCN111190463AGuarantee the effect of operationGuaranteed sliding buffer effectDispersed particle filtrationTransportation and packagingDrive motorComputer case
The invention provides a spliced computer case, and relates to the technical field of computers. The spliced computer case comprises anti-collision buffer mechanisms and a dust filtering mechanism. There are two baffles which are located on the left side and the right side of the case body correspondingly. An assembling hole is formed in the center of each baffle. There are eight anti-collision buffer mechanisms, each anti-collision buffer mechanism is composed of a shell, a buffer column, a spring and a fixing bolt, and a threaded blind hole is formed in each buffer column. A cleaning switchis installed on the end face of the front side of the case body, and the cleaning switch is connected with a power supply circuit in the case body. The dust filtering mechanism is composed of an assembling plate, a rotating roller, a dust filtering net, a driving motor and a dust scraping knife. When the baffles on the left side and the right side of the case body are impacted by external force, impact force borne by the baffles is buffered through the anti-collision buffering mechanisms so that damage caused by the impact force to hardware in the case body is reduced, and the operation effectof the hardware in the case body is guaranteed.
Owner:CHANGZHOU INST OF TECH
Dustbin
InactiveCN104401617APrevent fallingAffect work performanceRefuse receptaclesWork performanceEngineering
Owner:SHAANXI AUTOMOBILE GRP WENZHOU YUNDING AUTOMOBILE
Drilling apparatus for manufacturing aircraft components
InactiveCN108672751AEasy to moveEasy to processLarge fixed membersBoring/drilling machinesHydraulic cylinderElectric machinery
The invention provides a drilling apparatus for manufacturing aircraft components, and relates to the field of equipment manufacturing. The drilling apparatus for manufacturing aircraft components comprises a fixing plate; supporting legs arranged on four corners of the bottom of the fixing plate; a base, the top of which is fixedly connected to the bottom ends of the supporting legs ; a cylinderseat fixedly mounted at the center of the bottom of the fixing plate; a hydraulic cylinder mounted at the bottom of the cylinder seat; a piston arranged inside the hydraulic cylinder; and a first oilinlet and outlet pipe and a second oil inlet and outlet pipe respectively arranged on the top and the bottom of the right side of the hydraulic cylinder. According to the drilling device for manufacturing aircraft components, the supporting plate is height adjusted by a push rod as needed and a movable block is driven to slide along the surface of the sliding rail through the screw, it is convenient for the motor to drive the drilling bit to move and thereby the processed objects are fixed. In addition, it is convenient for the drilling bit to process the objects thereby the time and labor aresaved, the work efficiency is improced and effectively is effectively increased.
Owner:芜湖渤江智能科技有限公司
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