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34results about How to "Reduce production complexity" patented technology
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Composite diaphragm for aqueous zinc-based battery as well as preparation method and application of composite diaphragm
ActiveCN119361969ASimple preparation processReduce production complexitySecondary cellsCell component detailsHydrophilizationElectrical battery
The invention provides a composite diaphragm for an aqueous zinc-based battery and a preparation method and application thereof, and the preparation method comprises the following steps: carrying out the following hydrophilization treatment on a diaphragm base material to obtain a hydrophilic diaphragm: placing the diaphragm base material in a grafting reactor, adding an acidizing solution with the volume concentration of 1-70%, and enabling the acidizing solution to completely immerse the diaphragm base material to obtain a hydrophilic diaphragm; the ratio of the volume of the acidizing solution to the area of the diaphragm base material is 0.01-1; the grafting reactor is sealed and heated to 30-90 DEG C for a grafting reaction, and the heating time is 2-72 h; and putting the diaphragm base material subjected to the grafting reaction into deionized water, soaking and washing for 5-120 minutes, and drying, so as to obtain the hydrophilic diaphragm subjected to grafting modification, and sequentially stacking the anti-dendritic diaphragm, the reticular binder and the hydrophilic diaphragm, and compounding to obtain the composite diaphragm. The composite diaphragm can effectively prevent the generation of battery negative electrode dendritic crystals and improve the stability of a battery positive electrode.
Owner:TOWNGAS CHINA ENERGY TECH (SHENZHEN) CO LTD +1
Flow guide method of functional current collector
PendingCN119674096AImprove mechanical propertiesImprove conductivityElectrode carriers/collectorsNon-aqueous electrolyte accumulator electrodesPolyethylene terephthalate glycolCopper plating
The invention relates to the technical field of current collectors, in particular to a diversion method of a functional current collector. The composite carbon nanotube is obtained by sequentially carrying out oxidation treatment, acylating chlorination treatment, modification treatment, amination treatment and graft polymerization treatment on a multi-wall carbon nanotube. Uniformly mixing the PET resin, the composite carbon nanotubes, a surfactant and a coupling agent, and carrying out standing, melt extrusion, tape casting, sheet casting treatment and two-way stretching to obtain the PET base film. The preparation method comprises the following steps: sequentially sputtering a copper layer on the surface of a PET (Polyethylene Terephthalate) base film, carrying out water electroplating on the copper layer, then coating the surface of the copper layer with an active substance, and then directly dipping a conductive adhesive solution in a lug position which is not plated with copper to obtain a pole piece; and stacking a plurality of pole pieces together, and inserting a current collector at the center of the stack to obtain the functional current collector. The functional current collector prepared by the method has good conductivity and mechanical property, so that the functional current collector has a wide application prospect in the technical field of current collectors.
Owner:JIANGYIN NANOPORE INNOVATIVE MATERIALS TECH LTD
New energy heavy truck integrated thermal management system
ActiveCN222629064Usmall footprintreduce usageAir-treating devicesVehicle heating/cooling devicesHeat managementElectrical battery
The utility model relates to the technical field of heavy truck thermal management systems, and particularly discloses a new energy heavy truck integrated thermal management system which comprises a passenger compartment loop, a battery heating loop and an electric drive cooling loop, and energy distribution between the passenger compartment loop and the battery loop is adjusted through an electronic expansion valve. A four-way valve is arranged between the battery heating loop and the electric drive cooling loop; the passenger compartment loop comprises an HVAC system, the output end of the HVAC system is connected with a liquid-gas separator, the output end of the liquid-gas separator is connected with an electric compressor, and the output end of the electric compressor is connected with a condenser; the battery heating loop comprises a heat exchanger, the output end of the heat exchanger is connected with a four-way valve, the output end of the four-way valve is connected with a first PTC, the output end of the first PTC is connected with a battery, the output end of the battery is connected with a battery water pump, and the output end of the battery water pump is connected to the input end of the heat exchanger. The occupied space of the new energy heavy truck heat management system is reduced, overall truck layout is facilitated, and meanwhile energy consumption and manufacturing cost are reduced.
Owner:ZHIYUWEIKE (CHONGQING) TECH CO LTD
Transistor circuit and manufacturing method thereof
PendingCN119403216AReduce the difficulty of manufacturing processReduce production complexityDevice materialHemt circuits
The invention provides a transistor circuit and a manufacturing method thereof, and belongs to the field of semiconductor devices. The transistor circuit includes: a first transistor and a second transistor; the first transistor and the second transistor comprise a common substrate, and a channel layer and a barrier layer which are sequentially stacked on the substrate; the barrier layer is provided with a groove extending into the channel layer; the first transistor further comprises a first dielectric layer, a first source electrode, a first drain electrode and a first grid electrode; the second transistor further comprises a second dielectric layer, a second source electrode, a second drain electrode and a second grid electrode; the first dielectric layer covers the bottom of the groove, the second dielectric layer is located on the barrier layer, and the first source electrode, the first drain electrode, the second source electrode and the second drain electrode penetrate through the barrier layer and are connected with the channel layer; the groove is located between the first source electrode and the first drain electrode, and the second dielectric layer is located between the second source electrode and the second drain electrode; the first gate is located in the groove, the second gate is located on the second dielectric layer, the first source is electrically connected with the second gate, and the first drain is electrically connected with the second source.
Owner:HC SEMITEK ZHEJIANG CO LTD
Optical fiber fabry-perot sensor based on light beam convergence and manufacturing method thereof
PendingCN122258961AImprove efficiencyEasy to detectLayered productsCoatingsLight beamMechanical engineering
The application provides a fiber-optic Fabry-Perot sensor based on light beam convergence and a manufacturing method thereof, and relates to the technical field of semiconductors. The sensor comprises a diaphragm layer, an intermediate layer and a bottom layer which are arranged in layers; the diaphragm layer is provided with a first groove, the intermediate layer is attached to the diaphragm layer in a manner that a first layer surface thereof faces the first groove, so as to form a Fabry-Perot cavity based on the first groove; the bottom layer is provided with a second groove, the intermediate layer is attached to the bottom layer in a manner that a second layer surface thereof faces the second groove, so as to form a nano-containing cavity based on the second groove; the second layer surface of the intermediate layer is formed with a micro-nano anti-reflection structure comprising array-distributed anti-reflection units located in the nano-containing cavity; and the bottom layer is formed with a micro-nano collimation structure comprising array-distributed collimation units located in the nano-containing cavity and in a symmetrical positional relationship with the micro-nano anti-reflection structure. The application at least reduces the manufacturing complexity.
Owner:ZHONGBEI UNIV
Helicopter damping pedal
ActiveCN119329745ATo achieve the purpose of vibration reductionimprove sciencePropellersRotocraftRotational axisClassical mechanics
The invention belongs to the technical field of mechanical design, and discloses a helicopter vibration reduction pedal which comprises an inner cylinder, a medium cylinder, an outer cylinder, a front end fixed sealing plate, a spring assembly, a counterweight assembly, an eccentric cylinder and an eccentric cylinder rotating assembly. The inner cylinder and the original pedal are coaxially and fixedly connected, the outer cylinder and the original pedal are coaxially arranged, and the front ends of the outer cylinder and the inner cylinder are connected through a front end fixing sealing plate; the medium cylinder sleeves the outer side of the inner cylinder and is coaxial with the inner cylinder, and a medium cavity is formed between the inner cylinder and the medium cylinder and is filled with a damping medium; the eccentric cylinder sleeves the outer side of the medium cylinder; a rotating shaft of the eccentric cylinder is coaxial with the medium cylinder; a counterweight assembly is arranged in the eccentric cylinder, and a spring assembly is arranged between the counterweight assembly and the medium cylinder; the eccentric cylinder rotating assembly is arranged at the rear end of the outer cylinder and connected with the eccentric cylinder to drive the eccentric cylinder to rotate.
Owner:CHINA HELICOPTER RES & DEV INST
Run-flat tire
The run-flat tire comprises a tire tread, a tire side wall, a tire body and a tire bead, and the tire bead is not provided with a bead filler structure and is only composed of a steel wire ring which is gradually narrowed from bottom to top; the run-flat tire further comprises inner supporting rubber, the section of the inner supporting rubber is in a crescent shape, and the inner supporting rubber is located between the tire side lining and the tire body cord fabric. The section of the outer supporting rubber is triangular, and the outer supporting rubber is located between the tire body cord fabric and the tire side wall; the wear-resistant rubber is in contact with the rim; the sidewall rubber is covered on the carcass ply; wherein the outer support rubber, the wear-resistant rubber and the sidewall rubber adopt a pre-composite structural design. On the premise that apex does not exist, the modulus and size relation between all parts of the tire side wall is optimized, and the running time and distance of the tire in the air shortage state are prolonged; in addition, the design concept of pre-compounding the outer support rubber and the sidewall is adopted, so that the production complexity can be reduced.
Owner:GITI RADIAL TIRE (ANHUI) CO LTD
Lighting ceiling light
This utility model relates to the field of lighting technology, and more particularly to a ceiling light, including a top panel, a lens, a back panel, a lamp panel, a mounting plate, and an optional battery. The top panel is formed by a cavity enclosed by a circular base plate and annular side plates. The base plate has a recessed portion to accommodate the lens, which is fixed by a ring rib and a positioning groove and glued to improve light efficiency and sealing. Symmetrical positioning parts are provided on the inner side of the base plate, which, together with the back plate, achieve horizontal and vertical positioning of the lamp panel, eliminating the need for independent elastic buckles and simplifying the mold design. The back plate is fixed to the top panel by a glue groove, elastic buckles, and the top panel, allowing for flexible switching of protection levels. The cable is clamped and fixed by the slots of the back plate and the base plate, avoiding the need for additional tail clips. The communication indicator light of the lamp panel corresponds to a thin-walled hole in the recessed portion of the base plate, and the thin-walled hole is designed to resist impact. The mounting plate is detachable and installable by a spring clip and a snap-fit structure, facilitating ceiling installation. This ceiling light has an optimized structure, is easy to assemble, improves light efficiency and protection performance, reduces costs, and is suitable for various scenarios.
Owner:JIANGSU ZHONGSHU ELECTRONICS CO LTD
Multi-band radio frequency energy collector
PendingCN119495952Ahigh gainExpand the scope of effective collectionAntennas earthing switches associationRadio frequency energyEnergy harvester
The invention belongs to the technical field of radio frequency energy collection, and particularly discloses a multi-band radio frequency energy collector which comprises an antenna structure and an EBG metasurface structure. The antenna structure comprises a metal patch layer, an antenna dielectric layer and an isolation layer, and the isolation layer is connected with the EBG metasurface structure; the metal patch layer comprises a short-arm fan-shaped branch knot, a long-arm fan-shaped branch knot and a double-line micro-strip feeder line, the length of the short-arm fan-shaped branch knot is smaller than that of the long-arm fan-shaped branch knot, and the fan-shaped circle center positions of the short-arm fan-shaped branch knot and the long-arm fan-shaped branch knot are connected with the double-line micro-strip feeder line. By arranging the antenna structure and the EBG metasurface structure, radio frequency energy can be collected in a plurality of common frequency bands, the array design improves the gain of the antenna, enhances the signal receiving capability, expands the effective collection range of the radio frequency energy collector, and is suitable for an application scene farther from a radio frequency signal source. The overall structural design is highly integrated, the structure is compact, and the device is suitable for wearable equipment.
Owner:DONGHUA UNIV
A movable dovetail groove workpiece fixing device
ActiveCN112091572Bachieve partial replacementavoid excessive wearWork holdersMetal working apparatusClassical mechanicsStructural engineering
A movable dovetail groove workpiece fixing device comprises a fixed workbench and a movable tooling plate, wherein a lifting cylinder, a pushing cylinder and a positioning boss are arranged on the fixed workbench, the end of the piston rod of the lifting cylinder is fixedly connected to a wedge-shaped plug block, the end of the piston rod of the pushing cylinder is fixedly provided with a connecting block, the movable tooling plate comprises a movable table plate, a fixed dovetail groove plate, a movable dovetail groove plate and two or more guide screws, the fixed dovetail groove plate is fixedly connected to the movable table plate, the bottom of the movable dovetail groove plate is fixedly connected to one end of the guide screw, the movable table plate is provided with two or more guide grooves parallel to the movement direction of the piston rod of the pushing cylinder, the other end of the guide screw is slidably connected to the guide groove, and the middle part of the bottom surface of the movable dovetail groove plate is provided with a connecting groove which fits with the connecting block. The device adopts a modular movable dovetail groove structure, which solves the problem of excessive wear of the tooling plate and rapid loading of parts caused by incomplete fit between the tooling and the workpiece, thereby reducing the production complexity and equipment maintenance costs.
Owner:SHANGHAI RO INTELLIGENT SYST
Welding device
The utility model provides a kind of welding device, including mounting seat, and welding cavity is equipped in mounting seat;Mounting seat is equipped with first installation port and second installation port;Multiple first clamps are detachably embedded in first installation port, the shape of the first clamping hole of each first clamp is different, and first shape pipe can be inserted into welding cavity through first clamping hole;Multiple second clamps are detachably embedded in second installation port, the shape of the second clamping hole of each second clamp is different, and second shape pipe can be inserted into welding cavity through second clamping hole;Heating assembly;When a first clamp is embedded in first installation port and a second clamp is embedded in second installation port, first clamp, second clamp and mounting seat form welding cavity;Part of heat generated by heating assembly is transmitted to welding cavity through mounting seat, and part of heat is transmitted to first clamp and second clamp to heat first shape pipe and second shape pipe.The present welding device is suitable for brazing of pipe fittings with different shapes and sizes.
Owner:HISENSE(SHANDONG)REFRIGERATOR CO LTD
Oil smoke purification equipment adopting modular design
ActiveCN222352390UReduce Design ComplexityReduce inventory pressureDomestic stoves or rangesLighting and heating apparatusAir volumeStructural engineering
The utility model discloses oil smoke purification equipment adopting modular design, which comprises a shell frame, the shell frame comprises two door posts, a rear plate, a bottom plate, a base and a top plate, the bottom plate is welded on the base, the rear plate is arranged on one edge of the base, the two door posts are arranged at two ends of the edge of the base relative to the rear plate, the top plate is arranged on the door posts and the rear plate, and the bottom plate is welded on the top plate. Screw holes are formed in four corners of the base and the top plate; the cabinet door assembly is arranged on the side, close to the two door columns, of the shell frame; the first sliding rail set and the two second sliding rail sets are arranged on the bottom plate, and the two second sliding rail sets are arranged on the two sides of the first sliding rail set respectively; the first sliding rail set is slidably connected with a plurality of electrostatic modules, and any second sliding rail set is slidably connected with a plurality of air uniformizing plates. The modular design is adopted, the production efficiency is improved, the production cost is reduced, the large-air-volume purification equipment can be formed by splicing a plurality of basic modules, the large-air-volume purification equipment can be split into a plurality of modules with small sizes, and transportation and installation are facilitated.
Owner:CHENGDU QIANFENG ELECTRONICS CO LTD
Portable tool basket
The utility model relates to a hand-held tool basket, including basket main part and handle subassembly, the handle subassembly includes handle seat and handle fixed on the handle seat, the both ends of handle seat are respectively equipped with the clamping hook that extends downwards, the middle part of basket main part sinks inwards, and the sunken part is equipped with the connecting plate, the connecting plate is connected with the handle seat. The side wall of the basket body divides the connecting plate into an outer splicing plate and an inner inserting plate, a through hole is further formed in the inner inserting plate, the lifting handle base stretches across the basket body, and the two ends of the lifting handle base are inserted into the through hole through clamping hooks. According to the utility model, the clamping hooks at the two ends of the lifting handle seat are inserted into the through holes of the inserting plate in the basket main body, so that the lifting handle can be quickly mounted and dismounted without fasteners such as screws; the clamping hooks are rigidly matched with the through holes, so that the handle is prevented from shaking, the bearing capacity is improved, and the structure is more stable; meanwhile, the number of the whole parts is small, the production complexity is reduced, and the production cost is reduced.
Owner:YONGKANG FUOU IND & TRADE CO LTD
Biochip structure
ActiveCN224203116UReduce ineffective lossStable deliveryMaterial electrochemical variablesPharmacy medicinePharmaceutical drug
The utility model discloses a biological chip structure. The biological chip structure comprises a conductive base layer, the plurality of conductive salient points are distributed in an array and are formed on the surface of one side of the conductive base layer, and the conductive salient points and the conductive base layer are integrally formed; the insulating layer covers the surface of one side of the conductive base layer with the conductive salient points, an opening for exposing a part of the conductive salient points is formed in the insulating layer, the exposed part serves as an electrode point, and a gold plating layer can also be formed on the electrode point. According to the structure, electric field focusing is achieved through the array design of the conductive salient points, the working voltage requirement is lowered, and energy loss is reduced; the integrated design eliminates interface contact resistance and improves the current transmission efficiency; the design of the opening of the insulating layer accurately controls the electric field action range and enhances the space targeting; the design of a transition layer and a groove is omitted, the manufacturing complexity and cost are reduced, and the device is suitable for efficient transdermal delivery of active ingredients and is not limited to beauty and drug treatment scenes.
Owner:GUANGZHOU ZIJIE SCIENCE & TECHNOLOGY CO LTD
Back contact cells and methods of making the same
The application provides a back contact cell and a preparation method thereof, and relates to the technical field of solar cells. The preparation method of the back contact cell comprises the following steps: providing a semiconductor substrate; sequentially preparing a tunneling oxide layer and an intrinsic silicon base layer arranged in a stack on the back light surface of the semiconductor substrate; preparing a first doped silicon base layer on the intrinsic silicon base layer; removing the first doped silicon base layer in a first region, so that the intrinsic silicon base layer in the first region is exposed; preparing a second doped silicon base layer on the back light surface; and annealing the intermediate body of the back contact cell to form an electron-doped layer, a hole-doped layer, a tunneling junction and a neutral-doped compensation region. According to the application, the intrinsic silicon base layer in the first region is first exposed, and then the second doped silicon base layer is prepared on the back light surface, and then annealing is performed, so that the electron-doped layer and the hole-doped layer can be formed synchronously, the tunneling junction and the neutral-doped compensation region can be formed, the process flow steps can be reduced, and the risk of conduction of the electron-doped layer and the hole-doped layer can be reduced.
Owner:JIANGSU MICROVIA NANO EQUIP TECH CO LTD
Transistor preparation method, transistor array and electronic equipment
The invention discloses a preparation method of a transistor, a transistor array and electronic equipment, and relates to the technical field of semiconductors. The method comprises the following steps: sequentially stacking a first silicon film layer, a germanium-silicon film layer and a second silicon film layer on a silicon substrate; generating bit lines on the silicon substrate, the first silicon film layer, the germanium-silicon film layer and the second silicon film layer along the bit line direction; word lines are generated on the second silicon film layer and the germanium-silicon film layer in the word line direction; and depositing a low dielectric material in the first etching groove, the second etching groove and the second silicon film layer, forming an air gap by etching and depositing a silicon dielectric material at the top, and isolating the gate material to obtain the vertical gate all-around transistor. According to the VGAA transistor, oxidation is avoided by depositing and covering a layer of protective material between the ring gate and the top source / drain, and finally, air gaps between word lines are formed through high-deposition-rate and low-step covering media, so that stray capacitance between the word lines is reduced, the device performance of the VGAA transistor is improved, and the preparation complexity is reduced.
Owner:BEIJING SUPERSTRING ACAD OF MEMORY TECH
Multiplexer module
ActiveCN222582398UReduce production complexityThree-dimensional smallImpedence networksSemiconductor/solid-state device detailsPlastic packagingMultiplexer
The utility model provides a multiplexer module which comprises a middle plastic package structure which comprises a plurality of filter chips, plastic package layers wrapping the back faces and the side walls of the filter chips, and retaining walls located on the two sides of the front faces of the filter chips. The isolation layer covers the retaining wall and forms a cavity with the retaining wall and the front surface of the filter chip; the at least one rewiring layer is located on the middle plastic package structure, the rewiring layer comprises a plurality of metal circuit layers and a dielectric layer for isolating the metal circuit layers, and the metal circuit layers are electrically connected with the front face of the filter chip; and the bonding pad is positioned on the rewiring layer and is electrically connected with the metal circuit layer. According to the utility model, at least one re-wiring layer is adopted to provide higher cavity strength, and cavity collapse in the subsequent secondary plastic packaging process can be resisted; according to the multiplexer module provided by the utility model, a smaller three-dimensional size can be realized, and a wider application field can be obtained.
Owner:VANCHIP TIANJIN TECH
Mg2Al4Si5O18: X glass with low-temperature blue light long afterglow and preparation method of Mg2Al4Si5O18: X glass
PendingCN119461843Aadd depthimprove distributionGlass furnace apparatusElectric furnaceRare earth ionsPhysical chemistry
The invention provides Mg2Al4Si5O18: X glass with low-temperature blue light long afterglow, the chemical expression of the glass is Mg2Al4Si5O18: X, and X is Eu < 2 + >, Sm < 3 + >, Tb < 3 + >, Pr < 3 + > and Er < 3 + >; the preparation method comprises the following steps: (1) determining a mathematical relationship between reaction temperature and reaction time, and obtaining a fitted curve by taking the reaction temperature x as an abscissa and the reaction time y as an ordinate; (2) determining rare earth ions required to be doped, and preparing corresponding raw material mixed powder; and (3) carrying out a reaction according to the predicted reaction time to obtain the Mg2Al4Si5O18: X glass with low-temperature blue light long afterglow. By adjusting the composition and structure of the material, the depth and distribution of traps are optimized, and the electron capture and release efficiency is improved, so that the long afterglow luminescence characteristic of the Mg2Al4Si5O18: X glass is further improved.
Owner:JIANGNAN UNIV
Radio frequency module
ActiveCN222515288UReduce production complexityreduce thicknessImpedence networksSemiconductor/solid-state device detailsPlastic packagingIsolation layer
The utility model provides a radio frequency module comprising a middle plastic package structure, the middle plastic package structure comprises a first electronic component, and the first electronic component comprises a filter chip and a non-filter chip or / and a passive component; the first plastic packaging layer at least covers the back surface and the side wall of the first electronic component; the retaining walls are positioned on two sides of the front surface of the filter chip; the isolation layer covers the retaining wall and forms a cavity with the retaining wall and the front surface of the filter chip; the isolation layer also covers at least part of the front surface of the non-filter chip or / and the passive element; the at least one rewiring layer comprises a plurality of metal circuit layers and a dielectric layer for isolating the plurality of metal circuit layers, and the metal circuit layers are electrically connected with the front surface of the first electronic element; and the first bonding pad is electrically connected with the metal circuit layer. According to the utility model, at least one rewiring layer is adopted to replace a traditional substrate to provide interconnection, so that the interconnection density is greatly improved while the thickness is reduced.
Owner:VANCHIP TIANJIN TECH
Current bridge of double-pancake coil and combined double-pancake coil
ActiveCN119673612AImprove reliabilityImprove efficiencyDynamo-electric machinesSuperconducting magnets/coilsWire rodContact formation
The invention provides a current bridge of a double-pancake coil, which is used for connecting a coil wire and comprises a first mounting plate, a second mounting plate and a superconducting tape, the first mounting plate and the second mounting plate are oppositely arranged, a first wiring surface and a second wiring surface are arranged on the upper edge and the lower edge of the surface, facing the second mounting plate, of the first mounting plate respectively, and superconducting wires are fixed to the surface, facing the first mounting plate, of the second mounting plate. The projection of the first wiring surface on the second mounting plate extends to the projection of the second wiring surface on the second mounting plate; and when the two coil connecting wires are respectively fixed on the first connecting surface and the second connecting surface, the superconducting tape is electrically contacted with the two coil connecting wires to form a superconducting path. According to the current bridge of the double-pancake coil, the current bridge can be conveniently formed between the two double-pancake coils, small-radius bending of the coil wiring for connecting the double-pancake coils is not needed, and the situation that the superconducting performance is reduced or even damaged due to bending of the coil wiring with the ceramic property is avoided.
Owner:ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +1
High and low orbit satellite fusion multi-band compact antenna
ActiveCN224082690UReal-time monitoring of signal qualityEnsure seamless communication across the entire domainRadiating elements structural formsAntennas earthing switches associationMulti bandSatellite antennas
The utility model discloses a high and low orbit satellite fusion multi-band compact antenna, which comprises an upper shell and a bottom shell which are connected, a plurality of support columns arranged on the top surface of the bottom shell, and a DCS low orbit satellite communication antenna, a high orbit satellite RX antenna, a high orbit satellite TX antenna, a GNSS positioning antenna, a 4G LTE antenna and a mainboard which are arranged in an accommodating cavity of the upper shell, the high-orbit satellite RX antenna, the high-orbit satellite TX antenna and the GNSS positioning antenna adopt a ceramic laminated structure; the ceramic laminated structure comprises an upper-layer ceramic substrate special for a high-orbit satellite RX antenna, a lower-layer ceramic substrate integrating a high-orbit satellite TX antenna and a GNSS positioning antenna, and a common PCB from top to bottom; a feeding point of the high-orbit satellite RX antenna and a feeding point of the GNSS positioning antenna are respectively connected with the corresponding LNA circuits on the common PCB; a feeding point of the high-orbit satellite TX antenna is connected with a PA circuit on the mainboard; and a communication mode of multi-band fusion and intelligent switching is realized.
Owner:SHENZHEN WEIXING IOT TECH CO LTD
Cell temperature detection device and battery pack
This application relates to a cell temperature detection device and a battery pack. The cell temperature detection device includes: a thermally conductive structural adhesive, one side of which is bonded to the busbar of the cell; a flexible circuit board, bonded to the side of the thermally conductive structural adhesive opposite to the busbar; a temperature sensor mounted on the flexible circuit board; and a hot-pressing film assembly covering the busbar, the thermally conductive structural adhesive, and the flexible circuit board. In this application, the thermally conductive structural adhesive bonds the busbar to the flexible circuit board, replacing the existing nickel sheet welding method. This eliminates the need for welding, simplifies the production process, and reduces production complexity. Furthermore, the hot-pressing film assembly eliminates the need for additional fixing brackets, aluminum braces, or other structures, further simplifying the production process and reducing complexity. In addition, the thermally conductive structural adhesive directly transfers heat from the busbar to the temperature sensor on the flexible circuit board, which is a shorter path than the conduction through the nickel sheet in the prior art, reducing heat transfer delay and enabling rapid temperature detection.
Owner:COMAC ERA (SHANGHAI) AVIATION CO LTD
Automobile stabilizer bar assembling structure
ActiveCN222645752UQuick installation and removaleffective installationInternal combustion piston enginesInterconnection systemsStructural engineeringMechanical engineering
Owner:YANGZHOU DONGSHENG AUTOMOTIVE CO LTD
Transformer magnetic integration structure integrating double direct-current inductance and leakage inductance and integration method thereof
ActiveCN121148874Breduce in quantityreduce volumeTransformers/inductances coils/windings/connectionsTransformers/inductances magnetic coresMagnetic integrationLeakage inductance
The application discloses a transformer magnetic integration structure integrating double direct-current inductors and leakage inductors and an integration method thereof. In order to overcome the problems of complex magnetic core structure design, large leakage magnetic flux and lack of universality of the integration method in the prior art, the application uses a single standard EE magnetic core to realize integration of double direct-current inductors, leakage inductors and transformers by reasonably designing winding connection mode and air gap parameters for the transformer with three magnetic element structures of direct-current inductor, leakage inductor and transformer. Compared with separate magnetic components, the application can reduce the number of magnetic elements of the transformer, reduce the volume proportion of the magnetic components in the transformer, further reduce the volume of the transformer system, improve the power density, simplify the magnetic core design, reduce the manufacturing complexity of the magnetic integration structure, suppress the unbalanced current of the two side column windings, realize high-efficiency and high-power-density operation of the system, and improve the stability and reliability of the system operation.
Owner:CENT SOUTH UNIV
Algan / gan vertical high electron mobility transistor and manufacturing method thereof
The application relates to an AlGaN / GaN vertical high electron mobility transistor and a manufacturing method thereof; solves the problem that when the field plate technology is applied to a device with a vertical drift region, the vertical drift region is easily affected by charge imbalance, thereby affecting the on-current; comprises a substrate of a GaN material; an N-type drift region, a GaN channel layer and an AlGaN barrier layer are sequentially grown above the substrate; a source region is formed on the upper surface of the AlGaN barrier layer, and a source electrode is arranged in the source region; the same number of P-type floating buried layers are formed on the left and right sides of the N-type drift region, and a P-type blocking layer is formed on the upper portion of the N-type drift region; a multilayer stepped dielectric groove is formed by etching through the middle portions of the N-type drift region, the P-type blocking layer, the GaN channel layer and the AlGaN barrier layer; a multilayer stepped oxide layer is arranged on the inner wall of each side of the dielectric groove; an SIPOS field plate is deposited between the oxide layers on the two sides; polycrystalline silicon is deposited above the SIPOS field plate; a gate electrode and a passivation layer are arranged above the polycrystalline silicon; and the two source electrodes are connected in common.
Owner:BEIJING CHIP IDENTIFICATION TECH CO LTD +2
Split-flow structure, double-cannula and its fastening method, pipe structure
ActiveCN120713614BImprove operational flexibilityImprove operating precisionSurgical instruments for coolingApparatus instrumentsCryosurgery
The application belongs to the field of medical instrument research / manufacture, and particularly relates to a shunt structure, a double-cannula and a fastening method thereof, and a pipeline structure, more particularly to a shunt structure of a double-cannula, a double-cannula and a fastening method thereof, and a partial pipeline structure of a cryosurgery device. The shunt structure comprises a porous base, a sleeve type connecting seat and a shunt connecting seat, independent shunting of an inner tube (high pressure supply) and an outer tube (return channel) is realized through an internal communication pipe and an adapter hole, and gear adjustment is supported. The double-cannula design comprises a connecting head (integration part and connecting part), the integration part adopts an integrated head, a connecting pipe and an elastic seal to ensure integration of the inner tube and the outer tube; the connecting part uses a connecting sleeve and a positioning pin to provide fastening and alignment. The inner tube is connected with the integrated head by extrusion of an elastic fastener; the connecting sleeve is screwed to the base to realize reliable fixing of the high pressure pipeline. The method is applied to the pipeline structure, and the flexibility is enhanced in combination with the outer tube sheath.
Owner:NINGXIA BEIYI MEDICAL INSTR CO LTD
A pluggable AI module and its supporting mobile device and operation method
PendingCN122088702AEliminate the risk of attacksReduce production complexity
This invention discloses a pluggable AI module, comprising: an AI large-model computing unit for performing edge-side AI large-model inference tasks; an eSIM module directly encapsulated within the pluggable AI computing module for providing a dedicated data communication channel; and a security chip electrically connected to the eSIM module for storing encrypted user data and digital identity. When the pluggable AI module is installed in a mobile device, the eSIM module and the security chip collaboratively execute an identity switching algorithm, synchronizing the activation of communication identity and corresponding national or regional security compliance policies within the pluggable AI module, without leaving the pluggable AI module with original sensitive data. Since the communication identity and security compliance functions are entirely handled by the pluggable AI module, the mobile device motherboard does not need to configure multiple versions of eSIM or security components for different national markets.
Owner:玺链科技有限公司 +4
Supporting assembly applied to evacuation platform and evacuation platform
PendingCN119434704AReduce production complexityReduce the number of modelsShoresScrew threadIndustrial engineering
The embodiment of the invention discloses a supporting assembly applied to an evacuation platform and the evacuation platform. According to one specific implementation mode, the supporting assembly comprises an inclined supporting rod assembly, an upper base and a lower base, the inclined supporting rod assembly comprises a first inclined supporting rod, a second inclined supporting rod and an adjusting sleeve, the first inclined supporting rod and the second inclined supporting rod are arranged at the two ends of the adjusting sleeve respectively, and anticlockwise threads are arranged at one end of the outer side face of the first inclined supporting rod; clockwise threads are arranged at one end of the outer side face of the second inclined supporting rod, first pipe threads are arranged at one end of the inner side face of the adjusting sleeve, second pipe threads are arranged at the other end of the inner side face of the adjusting sleeve, the first pipe threads are meshed with the clockwise threads, and the second pipe threads are meshed with the anticlockwise threads; the upper base is connected with the first inclined supporting rod, and the lower base is connected with the second inclined supporting rod. According to the embodiment, the production complexity can be reduced, and batch production can be realized in advance without measuring the field size.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD +2
A siC plate heat exchanger
This utility model discloses a SiC plate heat exchanger, relating to the field of heat exchange technology. It includes a rear end plate, a PTFE base plate, heat exchange plates, a sealing ring, a front end plate, fastening screws, and a compression spring. Both the front and rear end plates have screw holes and positioning rod holes on their surfaces. The combination of the fastening screws and the compression spring provides uniform clamping force to the entire heat exchanger. The fluid flow channel adopts an S-shaped design, allowing the fluid to form a tortuous flow path within the channel, increasing the contact time and turbulence between the fluid and the plates, thus enhancing heat transfer. The single-sided flow channel layout avoids dead zones or vortex areas within the channel, allowing for more complete heat exchange. The heat exchange plates possess excellent high-temperature resistance, enabling stable operation under high-temperature conditions without affecting thermal conductivity. Their high hardness and wear resistance make them less prone to wear in heat exchange scenarios containing particulate media. The front end plate is made of steel lined with PTFE, enabling the equipment to adapt to highly corrosive environments such as strong acids and alkalis.
Owner:WUXI YINGLUO WEISEN TECH CO LTD
Method for preparing industrial-grade aluminum oxide from red mud
PendingCN119461437AHigh recovery rateefficient extractionIron oxides/hydroxidesAluminium hydroxide preparationFerric hydroxideOXALIC ACID DIHYDRATE
The invention discloses a method for preparing industrial-grade aluminum oxide by using red mud, which comprises the following steps: S1, carrying out ore grinding treatment on the red mud to obtain red mud powder with D90 less than 74 mu m; s2, the red mud powder obtained in the step S1 is added into mixed acid, acid leaching treatment is carried out at the temperature of 30-50 DEG C, ultrasonic treatment is assisted in the acid leaching process, a leaching mixed solution is obtained, solid-liquid separation is carried out on the leaching mixed solution, and leaching residues and a leaching solution containing iron ions and aluminum ions are obtained; the mixed acid is a mixed solution of hydrochloric acid, oxalic acid and phosphoric acid; s3, adjusting the pH value of the leachate obtained in the step S2, carrying out auxiliary stirring reaction under a set temperature condition, aging, and filtering out ferric hydroxide precipitate to obtain filtrate; s4, adjusting the pH value of the filtrate obtained in the step S3, carrying out auxiliary stirring reaction under a set temperature condition, and then aging and filtering to obtain an aluminum hydroxide precipitate; and S5, calcining the aluminum hydroxide precipitate obtained in the step S4, and cooling to obtain the industrial-grade aluminum oxide. According to the method, the aluminum element in the red mud is extracted through an acid dissolution and fractional precipitation technology, and production of industrial-grade aluminum oxide is achieved; the method is simple in step and environment-friendly and efficient in technological process, and a new thought is provided for red mud recycling.
Owner:CENT SOUTH UNIV