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Golf club head
A golf club head includes a head body formed with a cavity, and a counterweight unit fitted in the cavity and including a sleeve body and an insert body. The sleeve body has a first end face, a second end face, first and second cavities, and first and second inner walls. The first inner wall has at least one first corner. The second inner wall has at least one second corner out of alignment with the first corner. The sleeve body further has at least one shoulder face formed at a junction of the first and second cavities. The insert body includes an insert portion removably inserted into the sleeve body, and an abutting portion extending outward from the sleeve body and abutting against the first end face. The insert portion has at least one flange engaging the second corner and having a stop face abutting against the shoulder face.
Owner:ADVANCED INT MULTITECH CO LTD
Liquid-based friction generator, power generation method and sensor
ActiveCN104467514ARealize the collectionImprove output performanceMaterial analysis by electric/magnetic meansFriction generatorsMechanical energyEngineering
The invention provides a liquid-based friction generator, a power generation method and a sensor. The friction generator comprises a friction layer of which the upper surface is provided with a first conductive element in a contacting manner, and a liquid into which a second conductive element is immersed; the lower surface of the friction layer and the upper surface of the liquid are arranged in a face-to-face manner; at least one part of the lower surface of the friction layer can be separated from the upper surface of the liquid after contacting with the upper surface of the liquid; and electric signals can be outputted to the outside through the first conductive element and the second conductive element. Correspondingly, the invention also provides a sensor and a friction power generation method. According to the friction generator, friction power generation of the liquid and the solid friction layer and electrostatic conduction principles are utilized; and the liquid and solid contact-based friction generator is designed and is simple in structure, and can collect mechanical energy generated by liquid fluctuation, and convert the mechanical energy into electrical energy, and has a broad application prospect.
Owner:BEIJING INST OF NANOENERGY & NANOSYST
Image-sensing module using white LEDs as a light source thereof
InactiveUS20070297020A1Operation be more convenient and fastConvenient operationPictoral communicationPrinted circuit boardEngineering
An image-sensing module using white LEDs as a light source thereof comprises a printed circuit board, a contact image-sensing element, a rod lens, and a white LED element, wherein the contact image-sensing element is mounted on the printed circuit board, the rod lens provided above the contact image-sensing element, and the white LED element is provided on a side of the rod lens. The white LED element emits a light beam to a document to generate a light reflected from the document to the contact image-sensing element, and then the contact image-sensing element can sense the image of the document via the rod lens.
Owner:LITE ON SEMICON
Self-driving photoelectric sensor and preparation method thereof
ActiveCN103780134ADiscriminant strengthImprove output performanceFriction generatorsEngineeringSelf driven
The invention provides a self-driving photoelectric sensor and a preparation method thereof. The self-driving photoelectric sensor integrates a photoelectric sensor into the structure of a friction nano generator, and the photoelectric sensor is driven by using output signals of the friction nano generator.
Owner:BEIJING INST OF NANOENERGY & NANOSYST
Golf club head
InactiveUS20090131200A1Easily assembleImprove bonding strengthNutsRail fastenersEngineeringGolf club
A golf club head includes a head body formed with a cavity, and a counterweight unit fitted in the cavity and including a sleeve body and an insert body. The sleeve body has a first end face, a second end face, first and second cavities, and first and second inner walls. The first inner wall has at least one first corner. The second inner wall has at least one second corner out of alignment with the first corner. The sleeve body further has at least one shoulder face formed at a junction of the first and second cavities. The insert body includes an insert portion removably inserted into the sleeve body, and an abutting portion extending outward from the sleeve body and abutting against the first end face. The insert portion has at least one flange engaging the second corner and having a stop face abutting against the shoulder face.
Owner:ADVANCED INT MULTITECH CO LTD
Electric rotating digging self-propelled tobacco seedling transplanter
ActiveCN105340437AEasy to moveEasy to transportTransplantingFurrow making/coveringControl systemEngineering
The invention relates to an electric rotating digging self-propelled tobacco seedling transplanter. The electric rotating digging self-propelled tobacco seedling transplanter is composed of an adjustable machine frame which can be adjusted along with ridges, a rotating digging mechanism, a transplanting depth adjusting machine frame, a seedling disk mechanism, a nursery seedling plate support, a crank connecting rod transplanting mechanism, a control system, a lithium battery pack, and an operation system; the lithium battery pack, the control system, and the operation system are arranged on the back part of the adjustable machine frame; the seedling disk mechanism and the crank connecting rod transplanting mechanism are immobilized on the transplanting depth adjusting machine frame, and the transplanting depth adjusting machine frame and the nursery seedling plate support are arranged on a machine body of the adjustable machine frame; the rotating digging mechanism is arranged on the front part of the machine body of the adjustable machine frame; and the adjustable machine frame is capable of realizing increasing or decreasing of the height of the electric rotating digging self-propelled tobacco seedling transplanter based on ridge height via manual operation. According to the rotating digging mechanism, a continuous rotating digging manner is adopted; the transplanting depth adjusting machine frame is capable of adjusting tobacco seedling root planting depth independently based on requirements; the control system is used for controlling start and stop, moving, and transplanting of the electric rotating digging self-propelled tobacco seedling transplanter; the electric rotating digging self-propelled tobacco seedling transplanter can be used for replacing artificial planting in tobacco fields processed via ridging.
Owner:云南烟草机械有限责任公司 +1
Linear compressor supported by three kinds of springs
InactiveCN103122837AEasy to fixImprove axial stiffnessPiston pumpsPositive-displacement liquid enginesReciprocating motionLinear compressor
The invention discloses a linear compressor supported by three kinds of springs. The linear compressor supported by the three kinds of springs comprises a support, a cylinder fixed with the support, two pistons in clearance fit with the inner wall of the cylinder, and two linear motors driving the two pistons to make coaxial and reciprocating motions, wherein the two linear motors are in transmission with the pistons correspondingly and respectively through piston shafts, two end portions of each piston shaft are fixed with the support respectively through a vortex arm plate spring assembly and a linear arm plate spring assembly, the vortex arm plate spring assemblies are close to the pistons, and a cylinder spiral spring used for providing axial elastic force is arranged between an end portion, far away from a corresponding piston, of each piston shaft and the support. Due to the fact that the linear compressor is supported by the three kinds of springs, clearance gap seal and oil-free lubrication technology are guaranteed, and axial rigidity of the springs is effectively improved. For a linear compressor with big rotor quality, high frequency resonance operation is achievable, operating efficiency is improved, and character match between the linear compressor and a cooling head of a low temperature refrigerator is achieved.
Owner:ZHEJIANG UNIV
Hybrid microwave integrated circuit
InactiveCN101740556AImprove thermal conductivityFlexible and adjustableSemiconductor/solid-state device detailsSolid-state devicesState of artMicrowave
The invention relates to a hybrid microwave integrated circuit. Aiming at the defects that the hybrid microwave integrated circuit of a large-size high-frequency power device has infirm welding and poor heat conducting performance and is easy to produce oscillation in the prior art, the invention discloses the hybrid microwave integrated circuit suitable for manufacturing the large-size high-frequency power device. In order to solve the technical problems, the invention adopts the technical scheme that the hybrid microwave integrated circuit comprises a substrate encapsulated in a tube shell, and at least two power devices manufactured on the substrate; the power device consists of field effect transistors; a matching circuit and an extraction electrode are manufactured on the substrate; the power device is connected with the extraction electrode through the matching circuit; the extraction electrode is connected with a pin; and gate electrodes of chips of the field effect transistors are welded in parallel through metal wires, drain electrodes of the chips of the field effect transistors are welded in parallel through metal wires, and the gate electrodes and the drain electrodes connected in parallel are welded on the matching circuit through the metal wires respectively.
Owner:SICHUAN LONGRUI MICROELECTRONICS
Reciprocating type automatic feeding mechanism
Owner:SUZHOU VOCATIONAL UNIV
Quick positioning and verticality-adjusting device for large-diameter steel-pipe upright column pile and construction method
ActiveCN105735319AAvoid the downside of disappearingSimple structure and easy accessBulkheads/pilesArchitectural engineeringSteel plates
The invention provides a quick positioning and verticality-adjusting device for a large-diameter steel-pipe upright column pile and a construction method. The device comprises a positioning support and a verticality-adjusting bracket, wherein the positioning support comprises a square outer frame; limiting steel plates are arranged on the middle inner sides of four side frames of the outer frame; the verticality-adjusting bracket comprises a lining pile casing; the steel-pipe upright column pile is arranged in the lining pile casing; eight verticality-adjusting support legs are uniformly distributed around the lining pile casing; the verticality-adjusting support legs are clamped in the limiting steel plates on the four sides; each verticality-adjusting support leg is provided with a high-strength sleeve and a verticality-adjusting screw; the lining pile casing is provided with bolt holes; and after the bolt holes are aligned with those of the steel-pipe upright column pile, the lining pile casing and the steel-pipe upright column pile are fixed through strengthening bolts. The invention provides the construction device and the construction method, which make the verticality of the steel-pipe upright column pile meet a requirement by virtue of a multidirectional jacking effect, give consideration to upright column pile positioning and solve the problems that the positioning deviation is large because a center mark is lost after a pile hole is drilled and a verticality-adjusting device is complex to use and difficult for construction personnel to operate.
Owner:NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP
Multifunctional fire protection coaxial nozzle device
The invention discloses a novel multifunctional fire protection coaxial nozzle device used for spraying two kinds of fire extinguishing media at the same time. The novel multifunctional fire protection coaxial nozzle device can selectively spray two kinds of fire extinguishing media at the same time or spray one kind of fire extinguishing media, the spraying flow and intensity of the two kinds of fire extinguishing media or one kind of fire extinguishing media are controlled through a valve at the same time, and spraying power of water extinguishing agent or foam extinguishing agent media enables dry powder fire extinguishing agent media to be sprayed by a longer distance. The novel multifunctional fire protection coaxial nozzle device is simple and practical, has high and flexible fire extinguishing capacity, and can be widely applied to and arranged into various fire extinguishing systems or fire extinguishing devices.
Owner:SINO ENVIRONMENTAL TECH CO LTD +1
Block-to-stop transmission device
InactiveCN104481385AFully bufferedAvoid irreversible deformationDoor/window protective devicesControl switchChange positions
Owner:ZHANGZHOU CHANGTAI NEW QILIN MACHINE
Single Slotted Flap With Sliding Deflector Flap and Lowerable Spoiler
InactiveUS20080179464A1Flexible and adjustableAir braking surfacesWeight reductionHigh-lift deviceAirplane
The present invention relates to a device for adjusting the lift characteristics of an aircraft with a high lift device (2) that is movably attachable to a wing element (1) and that comprises at least one slot covering device (3; 4), wherein the at least one slot covering device (3; 4), is movably attachable to the wing element (1). The slot covering device (3; 4) is designed to regulate the size of a slot (7) between the wing element (1) and the high lift device (2).
Owner:AIRBUS OPERATIONS GMBH
Guide wheel modifier for centerless grinding machine
InactiveCN103056774ASimple structureLow input processing costAbrasive surface conditioning devicesEngineeringProcessing cost
The invention relates to a guide wheel modifier, specifically relates to a guide wheel modifier for a centerless grinding machine and belongs to the technical field of bearing processing and centerless grinding. The guide wheel modifier comprises a modifier body, a horizontal moving mechanism and a vertical moving mechanism, and the horizontal moving mechanism and the vertical moving mechanism are arranged on the modifier body. The manufacture structure of the guide wheel modifier for the centerless grinding machine is simple, investing processing costs are much lower than those of an old guide wheel modifier, height adjustment and horizontal moving of a diamond pen are flexible by means of a bidirectional adjustable mechanism, and more importantly, the problem of frequent maintaining in the past is solved; and the operation is convenient, an operator can master work methods after the operator is slightly trained and guided, work efficiencies are greatly improved, and subsidiary work time is reduced.
Owner:WAFANGDIAN BEARING GRP CO LTD
Alkali-activated regenerated micro-powder foam concrete and preparation method thereof
ActiveCN112062533ARealize resource utilizationReduce occupancySolid waste managementCeramicwareFoam concreteFoaming agent
The invention discloses alkali-activated regenerated micro-powder foam concrete and a preparation method thereof.The foam concrete is prepared from, by mass, 50-70 parts of regenerated micro-powder, 10-30 parts of granulated blast-furnace slag powder, 10-20 parts of fly ash, 1-3 parts of gypsum, 50-80 parts of water, 4-8 parts of an activator, 1.0-2.0 parts of a foaming agent and 0.1-0.2 parts ofa foam stabilizer. The regenerated micro-powder is ground, the ground micro-powder is uniformly mixed with the granulated blast furnace slag powder, the fly ash and the gypsum, and excitation and foaming molding are carried out through the alkaline activator to prepare the alkali-activated foam concrete taking the regenerated micro-powder as a raw material. According to the solid waste resource utilization requirement, a large amount of fine powder collected in the air separation process in the waste concrete crushing process is utilized, and the utilization rate of the construction waste is effectively increased. Meanwhile, compared with common foam concrete, the alkali-activated foam concrete taking the regenerated micro-powder as the main raw material has the characteristics of low cost(no cement), high setting speed, high early strength, good thermal insulation property and the like.
Owner:YANGZHOU UNIV +1
Liquid crystal display panel modules
ActiveUS20080204391A1Improve display characteristicsFlexible and adjustableCathode-ray tube indicatorsInput/output processes for data processingVoltage generatorLiquid-crystal display
A liquid crystal display panel module includes a display panel, a plurality of source drivers, a plurality of gate drivers, a gamma reference voltage generator and a timing controller, in which the timing controller controls operations of the gate drivers, of the source drivers and of the gamma reference voltage generator, so that the source drivers can, based on one set of gamma reference voltages, output single-color data groups to corresponding display sub-areas in the display panel, respectively.
Owner:AU OPTRONICS CORP
One-piece signal channel feedback ANC system
InactiveCN102332260ABeautiful appearanceGood and stable controlSound producing devicesNoise controlControl system
The invention discloses a signal channel feedback ANC system that is designed in a one-piece mode. The system mainly comprises: a microphone; a circuit system, which includes a microphone pre-amplification circuit, a variable gain control circuit, a second order RC control circuit and a power amplification circuit; a loudspeaker unit; a loudspeaker casing; and a power supply. According to the invention, an integrated design problem of a feedback ANC system is solved, wherein the designs include a control circuit design, filter parameter estimation and a loudspeaker casing design. Moreover, the system has advantages of good and stable control effects, a beautiful control system appearance as well as flexible and adjustable system parameters and performances.
Owner:NANJING UNIV
Magnetic negative stiffness damper stay cable vibration reduction device and design method
ActiveCN112942104AImproved multi-modal vibration reductionIncreased durabilityGeometric CADCable-stayed bridgeVibration controlBraced frame
The invention belongs to the technical field of engineering structure vibration control, and particularly relates to a magnetic negative stiffness damper stay cable vibration reduction device and a design method. The device comprises a supporting frame, a magnetic negative stiffness mechanism, a rotary eddy current damping mechanism and a transmission mechanism. The design method comprises the steps that the vibration frequency of a stay cable is determined; the mounting position of the stay cable vibration reduction device of the magnetic negative stiffness damper is determined; a stiffness parameter assembly of the stay cable vibration reduction device of the magnetic negative stiffness damper is designed; and a damping parameter assembly of the stay cable vibration reduction device of the magnetic negative stiffness damper is designed. The rotating speed of a rotary eddy current damping element is increased through a ball screw, and the energy consumption efficiency of the magnetic negative stiffness damper is improved; the quasi-constant negative stiffness overcomes the defect that an existing negative stiffness damper is difficult to design accurately due to the fact that the negative stiffness nonlinear characteristic is obvious; the negative stiffness effect of a magnetic negative stiffness element is amplified through the ball screw mechanism, and the multi-mode vibration control effect of the stay cable is effectively improved.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
Dynamic polymer with hybrid cross-linked structure and application thereof
The invention discloses a dynamic polymer with a hybrid cross-linked structure. The dynamic polymer contains common covalent cross-linking and contains both dynamic covalent inorganic silicon borate bonds and supramolecular hydrogen bonds formed under the condition of participation of side hydrogen bond groups, wherein the cross-linking degree of the common covalent cross-linking reaches a gel point of the common covalent cross-linking or above. According to the dynamic polymer, the dynamic covalent inorganic silicon borate bonds and the supramolecular hydrogen bonds are conjugated, so the dynamic polymer has good dynamic reversibility and presents t functional characteristics like stimulation responsiveness and self repair performance; common covalent cross-linking endows the polymer withcertain strength and stability; and the existence of the inorganic silicon borate bonds and the hydrogen bonds allows the polymer to have good energy-absorbing effect and to realize toughening and damping of materials in specific structures. The dynamic polymer can be extensively used for preparing damping and buffering materials, shock-resistant protection materials, self-repairing material, tough materials, etc.
Owner:厦门天策材料科技有限公司
All-vanadium redox flow battery bipolar plate and preparation process thereof
ActiveCN109768296AGood product performanceImprove conductivityRegenerative fuel cellsElectro conductivityCorrosion
An all-vanadium redox flow battery bipolar plate and a preparation process thereof. The all-vanadium redox flow battery bipolar plate comprises a silane coupling agent solution, mesh carbon cloth treated with the silane coupling agent solution, a flexible graphite plate and a conductive adhesive. The conductive adhesive is a graphite-filled conductive adhesive. The bipolar plate is prepared by heating and pressing the flexible graphite plate, the graphite-filled conductive adhesive, the mesh carbon cloth, the graphite-filled conductive adhesive and the flexible graphite plate in sequence withthe vacuum molding technology; and the graphite-filled conductive adhesive is used as a binder. The invention reduces the use of an organic solvent; the preparation process adopts an internal mixer and a open mill for the conductive adhesive preparation and the vacuum molding for the composite bipolar plate preparation so that the operation process is more automatic and the product performance isbetter and more stable; the prepared vanadium battery composite bipolar plate material has the advantages of high electrical conductivity, good corrosion resistance, excellent mechanical properties and good product stability; and the defects of pure graphite plate and conductive plastic as a bipolar plate material in a vanadium battery are solved.
Owner:杭州德海艾科能源科技有限公司
Sewage treatment system for water shortage cities and storage and advanced treatment method of sewage and rainwater
InactiveCN101891348AFlexible and adjustableReliable handlingEnergy based wastewater treatmentMultistage water/sewage treatmentConstructed wetlandAquatic animal
The invention relates to a sewage treatment system for water shortage cities and a storage and advanced treatment method of sewage and rainwater, belonging to the technical field of water treatment. The system comprises a pretreatment station house, stabilization ponds, a drainage and irrigation station house and artificial wetlands, wherein the stabilization ponds are divided into an anaerobic pond, a facultative pond, a primary aquatic plant pond, a secondary aquatic plant pond, a primary aquatic animal pond and a secondary aquatic animal pond; the artificial wetlands are constructed around the stabilization ponds and divide each of the stabilization ponds; and a culvert pipe passes through the space below the artificial wetlands among the pretreatment station house, the stabilization ponds and the drainage and irrigation station house to enable the pretreatment station house, each stabilization pond and the drainage and irrigation station house to be sequentially connected in series. Biological floras, planted aquatic plants or cultured aquatic animals are respectively put in each stabilization pond, and sewage and rainwater sequentially enter each stabilization pond to be purified. The invention has the advantages of low manufacturing cost and operating cost and easy maintenance and can be used for carrying out effective and reliable sewage treatment.
Owner:NORTHEAST NORMAL UNIVERSITY
Bin discharge mechanism of circular bin
ActiveCN105645127AImprove the lubrication effectFlexible and adjustablePackagingLoading/unloadingFailure rateBall bearing
The invention relates to a bin discharge mechanism of a circular bin. The bin discharge mechanism comprises a main speed reducer, a coupling, a discharge auger and a tail mechanism; the main speed reducer is positioned in center of the bin; an output shaft of the main speed reducer is connected with an auger shaft of the discharge auger through the coupling; an outer end of the auger shaft is connected with the tail mechanism; the part, beside two ends, of the auger shaft is formed by embedding and welding multiple hollow long shafts in sequence; the number of embedded layers near the middle part of the auger shaft is bigger; spiral blades are axially wound at the outer periphery of the auger shaft, and are uniform in pitches on each section of step shaft; and the volumes in the pitches of the spiral blades are gradually increased from tail ends to center ends. Blades for shearing materials are respectively mounted on the outer edges of all the spiral blades. The output shaft of the main speed reducer is supported on wall boards on two sides of the main speed reducer through double rows of radial spherical roller bearings; and a two-way thrust ball bearing is mounted at one end, far from the discharge auger, of the output shaft of the main speed reducer. The bin discharge mechanism can bear higher radial force and two-way axial force, and is low in failure rate.
Owner:MYANDE GRP CO LTD
Preparation and application of linear biodegradable polyester elastomer with controllable elasticity and shape memory effect
InactiveCN105504248AMeet biomechanical needsHigh viscoelasticitySuture equipmentsPharmaceutical delivery mechanismElastomerTissue repair
The invention discloses preparation and application of a linear biodegradable polyester elastomer with a controllable elasticity and shape memory effect. The linear biodegradable polyester elastomer with the controllable elasticity and shape memory effect is formed by conducting copolymerization on a caprolactone monomer containing a lateral cyclic ether structural unit and caprolactone, wherein the molar ratio of the caprolactone monomer containing the lateral cyclic ether structural unit to the caprolactone is 5:95-25:75, and the structural formula can be found in description. The viscoelasticity of the linear biodegradable polyester elastomer with the controllable elasticity and shape memory effect is remarkably improved, the elongation at break can reach 1600% and above, the elastomer can be dissolved in a conventional organic solvent, a three-dimensional porous support can be constructed conveniently through a construction technology of the porous support such as, electrostatic spinning, three-dimensional printing and phase separation, tissue engineering blood vessel scaffold materials, myocardial patches, nervous tissue engineering scaffold materials and the like are prepared, and the preparation and application of the linear biodegradable polyester elastomer can be widely applied to the fields of soft tissue engineering scaffolds, tissue repair and regenerative medicine.
Owner:JINAN UNIVERSITY
Low-dielectric constant insulating media monox thin-film and preparing method thereof
InactiveCN1585101AAdjustable rigidityFlexible and adjustableSemiconductor/solid-state device manufacturingSilsesquioxaneHYDROSOL
The film is made of the material with the general formula of SiOxRy, whose comical bond is Si-O.Si-C.C-H; which contains Nanometer micropore. The producing process is as below. The siloxane organics is applied as template to produce the colloidal sol in the organic liquid, and paint the colloidal sol on the silicon wafer to form the film. The anneal temperature is around 200-600 deg.C and the heating up rate is about 5-20 deg.C per minute.
Owner:NANJING UNIV
Automobile door framework structure
The invention provides an automobile door framework structure which comprises a door lower portion framework and a window frame structure connected to the lower portion framework. The lower portion framework comprises a lower door framework, the front end of the lower door framework is connected to the lower end of a front door framework, the upper end of the front door framework is connected with an outer door window beam, a door outside handle reinforcing plate and a door lock installation plate are arranged under the outer door window beam, and he lower door framework, the front door framework and the outer door window beam are all of a hollow aluminum alloy profile structure. The automobile door framework structure is simple in structure, convenient to produce and manufacture and low in cost; a door assembly can be formed only by installing a plastic outer covering part on the door framework, a door model is conveniently replaced, and the adjustability and the plasticity are high; the light weight requirement of an electric car can be met, the endurance mileage of the electric car can be lengthened, the structural stability is good, and a good application prospect is achieved.
Owner:奇瑞新能源汽车股份有限公司
Protection circuit of DC motor
ActiveCN107947117AImprove applicabilityAdjustable and flexibleEmergency protective circuit arrangementsCapacitanceControl signal
The invention discloses a protection circuit of a DC motor. The protection circuit comprises a sampling unit, a comparison processing unit and a control unit, wherein the sampling unit is configured to sample a current flowing through the DC motor, acquire a sampled voltage value and output the sampled voltage value to the comparison processing unit; the comparison processing unit is configured tocompare the sampled voltage value and a set reference voltage value, and output a comparison result to the control unit; the control unit is configured to output a first control signal to control theDC motor to turn off when the sampled voltage value is higher than the reference voltage value for a first preset time, and output a second control signal to control the DC motor to reboot when the DC motor is controlled to turn off for a second preset time; and the first preset time is set by means of a first capacitor module, the second preset time is set by means of a second capacitor module,and the first capacitor module and the second capacitor module in the control unit are independent of each other in the control unit and can be adjusted separately without influencing each other.
Owner:GOERTEK INC
Packaging method of high frequency internal matching power device
ActiveCN102832145AHigh bandwidthHigh gainSolid-state devicesSemiconductor/solid-state device manufacturingCapacitanceHigh frequency power
The invention discloses a packaging method of a high frequency internal matching power device. The packaging method comprises the following steps: co-crystallizing an internal matching circuit inside a tube shell through a gold and germanium alloy; co-crystallizing a power device and an input / output matching capacitor inside the tube shell through a gold and tin alloy; mutually connecting the power device, the input / output matching capacitor and the internal matching circuit through gold wires electrically; and connecting the internal matching circuit with tube shell pins through gold strips electrically. According to the packaging method of the high frequency internal matching power device, provided by the invention, a packaging mode of two-stage LCL (lower control limit) input matching is adopted, a Q value of an input matching circuit is reduced, and so that the bandwidth, the gain and the output power of the internal matching power device are increased; in addition, by co-crystallizing the high frequency power device, the ceramic capacitor and the matching circuit inside the tube shell by adopting the gold-tin and gold-germanium, the solidity of the physical connection is guaranteed, and the thermal conductivity of the power device is increased.
Owner:昆山工研院第三代半导体研究院有限公司
Flexible pressing mechanism and pressing method thereof
The invention discloses a flexible pressing mechanism and a pressing method thereof. The flexible pressing mechanism is composed of multiple flexible pressing units, the flexible pressing units comprise housings, rubber wheels, springs and connecting mechanisms, the flexible pressing unis are mutually connected through pins and can be rotated around the pins, locking is conducted after the included angle between the adjacent flexible pressing units is adjusted according to the shape of skin, and pulling rings are arranged at the two ends of the flexible pressing mechanisms and fixed to a framework through fastening pliers which are fixed to a fixture frame. According to the mechanism, the pressing adapting to skins of different shape curvatures is achieved through different angle combination of the flexible pressing units.
Owner:XIAN AIRCRAFT IND GROUP
Adjustable flex saddle for a bicycle or a motorcycle
ActiveUS20150259018A1Reduced flexibilityControls of stiffnessVehicle seatsCycle saddlesEngineeringMechanical engineering
A saddle on which an individual is seated while riding a bicycle or a motorcycle. The saddle includes a flexible base to support the rider's weight and a stationary nose cap attached to the flexible base. One end of a bumper retaining block is pivotally and detachably connected to the nose cap. A resilient bumper is located between the flexible base and the bumper retaining block. A pair of rails which runs along the bottom of the flexible base is attached to the bicycle / motorcycle. The pair of rails is coupled to the bumper retaining block to push the block towards the flexible base with the resilient bumper sandwiched therebetween. The bumper retaining block can be detached from the stationary nose cap so that the resilient bumper can be replaced by a bumper having a different density to selectively control the flexibility of the base.
Owner:KUIPERS RAYMOND J +1
Quantum dot-combined and ultraviolet-excited white LED light-emitting device
ActiveCN107425106AQuality improvementImprove efficiencySemiconductor devicesQuantum efficiencyAdhesive
The invention discloses a quantum dot-combined and ultraviolet-excited white LED light-emitting device, which comprises a package substrate, an ultraviolet LED chip and fluorescent adhesives, wherein the fluorescent adhesives include a red quantum dot fluorescent adhesive, a green quantum dot fluorescent adhesive and a blue fluorescent adhesive; the three fluorescent adhesives are obtained by treating red quantum dot fluorescent powder, green quantum dot fluorescent powder and blue fluorescent powder through an adhesive preparation technology separately, wherein a CdSe<x>Te<1-x> quantum dot of a coated shell structure is adopted by the red quantum dot fluorescent powder, and x is smaller than 1 and greater than or equal to 0; one of a CdSe quantum dot, a CuInS quantum dot and an InP quantum dot of the coated shell structure is adopted by the green quantum dot fluorescent powder; and the blue fluorescent powder is rare-earth blue fluorescent powder. The red quantum dot fluorescent adhesive, the green quantum dot fluorescent adhesive and the mature blue rare-earth fluorescent adhesive are combined, and all are excited by ultraviolet light and mixed into white light, so that the quantum dot-combined and ultraviolet-excited white LED light-emitting device is extremely flexible in adjustability, high in quantum efficiency, long in service life and high in color rendering index.
Owner:苏州轻光材料科技有限公司
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