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75results about How to "Increase the effective area" patented technology

Solar cell and photovoltaic module

The invention provides a solar cell and a photovoltaic module, and belongs to the technical field of solar cells. The solar cell comprises: a semiconductor substrate having a first surface and a second surface opposite to each other, and a plurality of first side surfaces adjacent between the first surface and the second surface; the passivation contact structure is at least located on a part of the first surface of the semiconductor substrate, and the passivation contact structure comprises an interface passivation layer and a first doped semiconductor layer which are stacked in sequence; wherein in the direction from the first surface to the second surface, the first side face comprises a first area and a second area which are adjacent in sequence, and the first area protrudes in the direction away from the first side face compared with the second area; the first doped semiconductor layer is further located on a part of the surface of the first region, and the first doped semiconductor layer located on the first region and the first doped semiconductor layer located on the first surface are integrally continuous; a portion of the surface of the first region adjacent to the second region is not covered with the first doped semiconductor layer.
Owner:LONGI GREEN ENERGY TECH CO LTD

Broadband single-layer dual-polarized microstrip antenna

According to the broadband single-layer dual-polarization microstrip antenna, a radiation patch and a short-circuit metal column are combined to form an EBG structure, and the working bandwidth is greatly improved. And the two ports are connected with the circular parasitic patch through the coaxial line, so that radiation energy coupling is realized, and impedance matching is improved. And two ports are orthogonally arranged, so that the isolation is improved. The four slits suppress the coupling current between the adjacent antenna units, an additional decoupling structure is not needed, the polarization purity is ensured, and the cross polarization is less than-15dB. The antenna is compact in structure, a single-layer substrate is adopted, the profile of the antenna is 0.08 working wavelength, miniaturization, dual polarization, broadband and high isolation are achieved, processing is simple, the antenna works in the 16.7 GHz Ku frequency band, and the-10 dB impedance bandwidth is about 16%. According to the invention, a miniaturized, dual-polarized, broadband, high-isolation and monopole-like radiation mode is realized, the radiation mode is stable, and the antenna can be used as a phased array unit.
Owner:ANHUI LEITU TECHNOLOGY CO LTD

Supported catalyst for SF6 thermocatalytic conversion and preparation method thereof

The invention relates to the technical field of sulfur hexafluoride gas thermocatalytic conversion, and discloses a supported catalyst for SF6 thermocatalytic conversion and a preparation method thereof, and the preparation method comprises the following steps: titanium dioxide is supported on the surface of SiC in a nanoscale particle form, and the mass ratio of titanium dioxide to silicon carbide is 1: 5. The catalyst and the preparation method provide possibility for harmless treatment of SF6 under milder conditions, and the provided preparation method has the advantages of high loading efficiency, simple preparation device, reduction of the preparation cost, increase of the effective reaction area of the catalyst, and good application potential and popularization prospect.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1

Automatic material storing and conveying system

The invention discloses an automatic material storing and conveying system. A front-section conveying unit is used for transferring materials to be warehoused to a warehouse-in and warehouse-out unit and receiving empty trays sent by the warehouse-in and warehouse-out unit; the warehouse-in and warehouse-out unit is used for storing the to-be-warehoused materials conveyed by the front-section conveying unit and the empty trays conveyed by the rear-section conveying unit and the material returning conveying unit into a goods shelf; the materials and the empty trays in the goods shelf are transferred to the rear-section conveying unit and the front-section conveying unit correspondingly; unqualified materials in the goods shelf are transferred to the material returning and conveying unit; the rear-section conveying unit is used for transferring the materials conveyed by the warehouse-in and warehouse-out unit to a production process; empty trays conveyed in the production process are transferred to a warehouse-in and warehouse-out unit; and the rejected material conveying unit is used for rejecting unqualified materials. According to the material turnover device, the material turnover efficiency is effectively improved, the automation degree of material turnover is improved, meanwhile, the utilization rate of storage space is increased, the error rate and the accident rate in the material turnover process are reduced, the labor intensity of workers is reduced, and meanwhile the production cost is reduced.
Owner:SHANGHAI XUANYI NEW ENERGY DEV CO LTD

Heating structure and electronic smoking set

The invention provides a heating wire which comprises a first electrode part and a second electrode part which are oppositely arranged and a net-shaped heating part connected between the first electrode part and the second electrode part, the net-shaped heating part comprises at least one heating wire group, each heating wire group comprises at least two heating wires, and each heating wire is bent and extends in a wave shape; in the first direction, the wave crest positions of the heating wires in each heating wire group are in one-to-one correspondence, and the wave trough positions of the heating wires in each heating wire group are in one-to-one correspondence; in the first direction, each heating wire forms an empty groove on the first side of the wave crest position and the second side of the wave trough position. Every two adjacent heating wires in the heating wire set are a first heating wire and a second heating wire, each wave crest of the first heating wire is located in the corresponding empty groove in the second heating wire, and each wave trough of the second heating wire is located in the corresponding empty groove in the first heating wire. The invention further provides an electronic smoking set.
Owner:SHENZHEN SMISS TECH CO LTD

Laser surface processing method, device, storage medium and program product

PendingCN122644817Aincrease the effective area
The present disclosure relates to a laser surface processing method, device, storage medium and program product, and relates to the field of laser processing. The method comprises: iteratively performing one or more rounds of laser processing steps until a first preset condition is met, each round of laser processing steps comprising: determining the position and target topography parameters of a current set of single-point laser irradiation on a current processing surface of a processing object based on the topography difference between the current processing surface and a target concave surface; determining the processing parameters of the current set of single-point laser irradiation corresponding to the target topography parameters of the current set of single-point laser irradiation based on the correspondence between the target topography parameters and the processing parameters of single-point laser irradiation; and controlling a laser to perform laser irradiation at the position of the current set of single-point laser irradiation with the processing parameters of the current set of single-point laser irradiation to form a corresponding set of first concave surfaces on the current processing surface. The scheme of the present disclosure can form a concave surface with a relatively large effective area.
Owner:TSINGHUA UNIVERSITY

A trench super-junction diode with mixed trench schottky and method of manufacture

A hybrid trench Schottky trench-type superbarrier diode and its fabrication method are disclosed. This relates to the field of semiconductor technology. From bottom to top, the diode comprises: a cathode electrode layer, an N+ substrate layer, an N- epitaxial layer, wherein the N- epitaxial layer has a plurality of spaced-apart P-type implantation regions; each P-type implantation region includes conductive channels and P-body regions spaced-apart from top to bottom; a dielectric layer, a silicon dioxide layer, wherein the silicon dioxide layer has a plurality of trenches extending downward from its top to the P-body regions; and an anode electrode layer, the bottom of which extends to the P-body regions through trenches. This invention improves the on-resistance characteristics of the device during forward operation, thereby enhancing the device's performance and reliability.
Owner:YANGZHOU YANGJIE ELECTRONIC TECH CO LTD

Etching machine for PCB (printed circuit board) of display screen

The invention discloses an etching machine for a display screen PCB, and relates to the technical field of wet etching, the etching machine comprises a workbench, a rotating roller device, a first hydraulic cylinder, a second hydraulic cylinder, a motor, an air blowing fan and a rotating sprayer, the bottom of the inner wall of the workbench is provided with a water storage tank, the bottom of the water storage tank is provided with a water outlet, the rotating roller device is arranged on the inner wall of the workbench, and the rotating roller device is arranged on the inner wall of the workbench. The first hydraulic cylinder is fixedly installed on the outer wall of the workbench, the second hydraulic cylinder is fixedly installed on the outer wall of the workbench, and the control device is used for controlling whether the rotating spray head is communicated with the first hydraulic cylinder or not and arranged on the inner wall of the workbench and controls fluid to be connected or disconnected through mechanical coincidence and dislocation of through holes of the second water conveying opening and the first water conveying opening. Rapid and accurate response without an intermediate link is realized, and uneven etching caused by spraying angle deviation or valve delay is effectively eliminated.
Owner:SHANDONG CHUNGUANG OPTOELECTRONICS CO LTD

A bidirectional TVS device and its preparation method

ActiveCN115497932Bincrease the effective areaImprove anti-surge performanceMetal interconnectMaterials science
Disclosed are a bidirectional TVS device and a preparation method thereof. The device comprises: a substrate of a first doping type; an epitaxial layer of a second doping type located on the substrate, wherein the second doping type is opposite to the first doping type; an isolation structure extending from the surface of the epitaxial layer into the substrate, defining a first region, a second region, a third region, a fourth region and a fifth region isolated from each other in the epitaxial layer; wherein a first diode, a second diode, a third diode and a fourth diode are respectively formed in the first region, the second region, the third region and the fourth region, and a triode is formed in the fifth region; and a metal interconnection structure connecting the cathodes of the first diode and the third diode to the first potential of the triode, and connecting the anodes of the second diode and the fourth diode to the second potential of the triode.
Owner:HANGZHOU SILAN INTEGRATED CIRCUIT +1

KD spare part front and back suspension transfer tool

The utility model relates to the technical field of transfer equipment, and discloses a KD spare part front and back suspension transfer tool which comprises a hydraulic forklift, four supporting plates are fixedly connected to the front portion of the hydraulic forklift, a plurality of positioning holes are formed in the surfaces of the supporting plates, a placing plate is arranged among the four supporting plates, and the positioning holes are formed in the placing plate. Extension assemblies are arranged on the left side and the right side of the containing plate correspondingly, a driving assembly is arranged on the front side of the containing plate, extrusion assemblies are arranged at the four corners in the containing plate correspondingly, fixing assemblies are arranged on the front side and the rear side in the containing plate correspondingly, each extension assembly comprises two telescopic plates, and the outer walls of the telescopic plates are slidably connected into the containing plate. According to the utility model, the extension assembly and the driving assembly are arranged, so that flexible adjustment can be carried out according to different specifications of front and rear suspensions of KD spare parts. When large-size spare parts are encountered, the motor drives the gear to be meshed with the rack plate, the telescopic plate is driven to slide, and the effective area of the containing plate is increased.
Owner:SHAANXI HEAVY DUTY SPECIAL TRUCK CO LTD

CNTs / PDMS microstructure triboelectric nanogenerator and its fabrication method

This invention provides a method for fabricating a CNTs / PDMS microstructure triboelectric nanogenerator, comprising the following steps: PCL particles are poured into the barrel of a 3D printing device and formed onto a printing receiver plate side by near-field direct writing and fused deposition modeling to obtain a PCL film with two patterns; a mixture of PDMS and a curing agent is stirred, carbon nanotubes are added and stirred further, followed by ultrasonication to obtain a mixed solution; the mixed solution is coated onto the PCL film, followed by vacuum treatment; the film is heated and dried to obtain a dielectric layer; the PCL on the film surface is removed to obtain a CNTs / PDMS dielectric layer; a copper foil is covered on the smooth surface of the dielectric layer as one end electrode, a PET layer is attached as a protective layer, and the other side is covered with copper foil to obtain another electrode; PET is then placed on top, and wires are led out from the two electrodes to connect to a load, thus obtaining the nanogenerator. This invention provides a method for fabricating a nanogenerator with low fabrication requirements and capable of producing nanogenerators with good overall performance.
Owner:NINGBO UNIV

Green compact adsorption tool

ActiveCN224360670UAvoid strippingImprove stability
The utility model relates to blow molding plastic car oil tank production discloses a kind of blank adsorption tooling including fixed seat, adsorption component, two rotating shafts and two drive components, and the end of fixed seat is set to the end of robot mechanical arm, and adsorption component is set to the other end of fixed seat, and adsorption component includes first adsorption block, second adsorption block and third adsorption block sequentially arranged along blank length direction, two rotating shafts are respectively set to the both ends of second adsorption block, and the end of first adsorption block and third adsorption block close to second adsorption block is respectively hinged on corresponding rotating shaft, and two drive components are respectively set to the side of first adsorption block and third adsorption block away from blank, for cooperation rotating shaft to drive first adsorption block and third adsorption block rotate towards blank direction;The blank adsorption tooling can effectively prevent blank from being stripped due to external vibration, inertial force and other factors during conveying, improve the stability of blank clamping and conveying.
Owner:WUHU SHUNRONG AUTOMOBILE PARTS

Massager

PendingCN122701564AIncrease magnetic attractionincrease the effective area
The application discloses a massager, which comprises a shell, a massage assembly, a driving assembly and a magnetic flat plate. The shell comprises a first connecting section, a second connecting section and a third connecting section which are fixedly connected, the second connecting section and the third connecting section are arranged at intervals along a first direction, and the first connecting section, the second connecting section and the third connecting section jointly enclose a hollow space. The massage assembly is accommodated in the hollow space and is slidably connected with the second connecting section and the third connecting section respectively. The driving assembly is accommodated in the shell and is transmissionally connected with the massage assembly. The magnetic flat plate is further included, the magnetic flat plate comprises a first plane and a second plane which are oppositely and parallelly arranged along a third direction, the first connecting section comprises a third plane, the first plane is magnetically attracted to the back plate of an electronic device, and the second plane is arranged on the third plane. Compared with the prior art, the magnetic attraction force of the magnetic flat plate to the electronic device is increased, and the fixed connection between the magnetic flat plate and the electronic device is more reliable.
Owner:SHENZHEN GLOBAL TRADE NETWORK TECHNOLOGY CO LTD

Dust recovery system of urea prilling tower

The utility model belongs to the technical field of dust recovery, and particularly relates to a dust recovery system of a urea prilling tower. Comprising a liquid absorption device arranged at an air outlet in the top of a urea prilling tower, a collecting tank is arranged below the liquid absorption device, a circulating tank is arranged below the collecting tank, the collecting tank is communicated with the circulating tank through a circulating downcomer, and the circulating tank is communicated with the liquid absorption device through a circulating pump. The liquid absorbing device comprises a first atomizing nozzle layer, a second atomizing nozzle layer and a flushing nozzle layer which are sequentially arranged from bottom to top; a first-stage separator is arranged between the first atomizing nozzle layer and the second atomizing nozzle layer, a second-stage separator is arranged between the second atomizing nozzle layer and the flushing nozzle layer, a third-stage separator is arranged above the flushing nozzle layer, and the third-stage separator comprises a plurality of air coolers. According to the utility model, the content of urea dust discharged into the atmosphere is reduced, and the environment-friendly requirement is met.
Owner:INNER MONGOLIA ERDOS CHEM IND CO LTD

Immune biosensor for human tissue plasminogen activator antigen

The invention discloses an immune biosensor of a human tissue plasminogen activator antigen, and designs a compound for modifying the immune sensor, a compound solution is dropwise added on the surface of an electrode of the immune biosensor by adopting a dispensing method to form a compound film, and then an aldehyde group is introduced into the solution to modify the surface of the film, so that the immune biosensor is obtained. An aldehyde group is introduced to be combined with a to-be-detected object antibody. NPC, MWCNTs and AuNP are dispersed in a chitosan solution, the electroactivity of an electrode interface is improved, the effective area of electrochemical reaction is increased, the sensitivity of the electrode is improved, and large-range active sites are provided while electrochemical signals are increased; the linear range of the immunosensor is relatively large, and human tissue plasminogen activator antigen detection in a normal concentration range can be realized.
Owner:HEFEI JUXUANMIAN HEALTH TECH CO LTD

Vibrating diaphragm, sound production unit and audio equipment

PendingCN121967971ABreak up the equivalent resonant frequencyImprove riding performancePlane diaphragmsSound generationMechanical engineering
The invention provides a vibrating diaphragm, a sound production unit and audio equipment. The vibrating diaphragm comprises a first mounting wing, a second mounting wing and a folding unit formed by continuous bending, the folding units form a plurality of folding spaces, and folding plates are formed on the two sides of the folding spaces. The tops of the two ends of the folding unit are arranged on a first plane, the top of the center of the folding unit is arranged on a second plane, and a first distance is formed between the first plane and the second plane; the distance between the folding plates on the two sides of the folding space changes along with the length of the folding units. The sound production unit comprises a first support, a magnet, a second support, a damping net and a damping plate. The loudspeaker also comprises the vibrating diaphragm of the above implementation mode. The first mounting wing and the second mounting wing are arranged on the first bracket and between the first bracket and the magnet; the audio equipment comprises a sound production unit. The vibrating diaphragm, the sound production unit and the audio equipment provided by the invention make up the defect of weak low-frequency performance in the prior art, and realize full-band balanced sound production.
Owner:SHENZHEN YIYI TECHNOLOGY INNOVATION CO LTD

Quantum dot-vertical line type avalanche diode single-photon detector and preparation method thereof

The invention relates to an avalanche diode single-photon detector and a preparation method thereof, in particular to a quantum dot-vertical line type avalanche diode single-photon detector and a preparation method thereof, and solves the problems that an existing single-photon detector is low in detection efficiency, and when an existing method is adopted for improvement, the preparation difficulty is large, the cost is high, and the effect is limited. The detector comprises a detector N + substrate, a back electrode growing on the lower surface of the detector N + substrate, a plurality of quantum dot-vertical line units arranged on the upper surface of the detector N + substrate at intervals in an array mode, a passivation layer and a front electrode. Each quantum dot-vertical line unit comprises a semiconductor vertical line structure, a porous nano material layer and a quantum dot material layer; the semiconductor vertical line structure grows on the upper surface of the detector N + substrate; the porous nanometer material layer covers the semiconductor vertical line structure; the quantum dot material layer covers the porous nano material layer; the passivation layer is filled between the quantum dot-vertical line units; and the front electrode grows on the part, extending out of the passivation layer, of the quantum dot-vertical line unit.
Owner:XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI

Double-vortex-shaped micro-vibration applicable magnetorheological damper

A double-vortex-shaped micro-vibration applicable magnetorheological damper belongs to the technical field of dampers, and comprises a shell, a sealing disc and an end cover which are fixedly connected to form a closed cavity, and the cavity is filled with magnetorheological fluid; the outer piston rod, the double-vortex-shaped flow channel disc and the inner piston rod are fixedly connected. A damping channel is formed by an outer piston rod drainage hole, a vortex-shaped flow channel of the double-vortex-shaped flow channel disc and an inner piston rod drainage hole. The coil is wound on the outer side of the double-vortex-shaped runner disc, the lantern ring is fixedly connected with the outer piston rod and the inner piston rod to form a piston assembly, the piston assembly divides a cavity into an upper cavity and a lower cavity, and the outer side of the lantern ring is in clearance fit with the inner side of the shell; the shell and the outer piston rod are in clearance fit and achieve sliding sealing through the sealing ring, and the sealing disc and the inner piston rod are in clearance fit and achieve sliding sealing through the sealing ring. The magneto-rheological damper is provided with an ultra-long damping channel, displacement loss caused by magneto-rheological fluid compression or installation gaps can be effectively compensated, and the magneto-rheological damper is suitable for centimeter-level even micron-level micro-vibration suppression.
Owner:SHANGHAI AEROSPACE CONTROL TECH INST

Waste gas treatment device during heating of environment-friendly weaving

The utility model relates to the technical field of environment-friendly weaving, in particular to a waste gas treatment device during heating of environment-friendly weaving, and aims to solve the technical problems that liquid drops converge into a small stream of liquid flow to flow down on the inner wall of a spray tower of a waste gas treatment device in the prior art, a liquid film cannot be formed on the inner wall of the spray tower, and the effective contact area with flue gas is too small. Comprising a treatment tower, a waste gas inlet pipe, an exhaust pipe, a rotating joint, a gear, a liquid inlet pipe, a liquid distribution pipe, a plurality of spraying pipes, nozzles and a film laying pipe, during spraying, power drives the spraying pipes and the nozzles to synchronously rotate, the nozzles rotate for spraying to make up spraying dead angles, and meanwhile, the spraying quality cannot be greatly influenced even if part of the nozzles are blocked; the spraying pipe drives the film laying pipe to rotate, the film laying pipe rotates to evenly flatten small liquid flow on the inner wall of the treatment tower on the inner wall of the treatment tower through the gaps to form a liquid film, the effective contact area with flue gas is effectively increased through the formation of the liquid film, and then the spraying effect is improved.
Owner:MULENG SHENGHUA PACKAGING CO LTD

Multi-wafer stacking edge processing method

The invention provides a multi-wafer stacking edge processing method. The multi-wafer stacking edge processing method comprises the following steps: providing a first wafer to an Nth wafer to be bonded in sequence; cutting and bonding the second wafer and the first wafer to form steps on the edges of the second wafer and the first wafer, forming a first oxide layer on the steps, and enabling the top of the first oxide layer to be flush with the top of the second wafer; carrying out inclined cutting on the edge of the first surface of the ith wafer; bonding the first surface of the ith wafer with the (i-1) th wafer; carrying out inclined cutting on the edge of the i-th wafer after bonding, wherein the width of the inclined cutting on the edge of the i-th wafer after bonding is smaller than or equal to the width of the step; and forming an (i-1) th oxide layer on the edge of the ith wafer after bonding. According to the invention, the effective area of the chip in the wafer is increased, particle aggregation is reduced, the patterning problem of the wafer edge is improved, and the breakdown risk of the wafer edge is reduced.
Owner:SHANGHAI INTEGRATED CIRCUIT EQUIPMENT & MATERIALS INDUSTRY INNOVATION CENTER CO LTD

Quantum dot-nanowire avalanche diode single-photon detector and preparation method thereof

ActiveCN119653879AImprove photon detection efficiencyLarge field of viewFinal product manufactureNanotechnologyNanowireQuantum dot
The invention relates to an avalanche diode single-photon detector and a preparation method thereof, in particular to a quantum dot-nanowire avalanche diode single-photon detector and a preparation method thereof, and solves the problems that an existing single-photon detector is low in detection efficiency and the preparation difficulty is large and the improvement effect is limited when an existing method is adopted for improvement. The detector comprises a detector N + substrate, a plurality of quantum dot-nanowire units, a passivation layer, a P-type electrode and an N-type electrode, wherein the quantum dot-nanowire units are arranged on the upper surface of the detector N + substrate at intervals; each quantum dot-nanowire unit comprises a semiconductor nanowire, a porous nanomaterial layer and a quantum dot material layer; the semiconductor nanowire comprises a heavily doped N + layer, an undoped I-type layer and a heavily doped P + layer; the porous nano material layer covers the semiconductor nanowire; the quantum dot material layer covers the porous nano material layer; the passivation layer is filled between the quantum dot-nanowire units; the P-type electrode grows on the top of the quantum dot-nanowire unit; and the N-type electrode grows on the upper surface of the detector N + substrate.
Owner:XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI

Semiconductor chip structure

The application provides a semiconductor chip structure, and belongs to the field of semiconductors.The semiconductor chip structure comprises a substrate, a first surface and a second surface opposite to each other; a plurality of separated active regions, the active regions extending from the surface of the substrate into the substrate; a gate structure covering part of the active regions and an epitaxial layer between two adjacent active regions; a double-layer metal interconnection layer comprising a first metal layer and a second metal layer, the active regions being electrically connected to the first metal layer; an interlayer dielectric layer filled between the first metal layer and the second metal layer; and a pad structure located on the second metal layer.The first metal layer and the second metal layer are arranged, and the interlayer dielectric layer is filled between the first metal layer and the second metal layer, so that the active regions are arranged below the pad structure, the area of the active regions is increased, the effective area of the chip is improved, and the production cost of the chip is reduced.
Owner:XINLIAN POWER TECH (SHAOXING) CO LTD

Preparation method of ultra-low attenuation optical fiber and ultra-low attenuation optical fiber

The invention belongs to the technical field of optical communication, and particularly discloses a preparation method of an ultra-low attenuation optical fiber and the ultra-low attenuation optical fiber, and the preparation method comprises the steps: S1, preparing a fluorine-doped sleeve with non-uniform fluorine distribution through employing an external vapor deposition technology; s2, stretching and corroding the fluorine-doped sleeve to obtain an inner cladding with a predetermined aperture; s3, SiO2 is deposited in the inner cladding layer by using an in-tube vapor deposition process, alkali metal doping is performed to form a core layer, the inner cladding layer with the core layer is melted and shrunk into a rod shape, and a rod-shaped structure is obtained; s4, preparing an outer cladding layer outside the rod-shaped structure through an external vapor deposition process, drying the rod-shaped structure with the outer cladding layer, and solidifying in a fluorine-containing atmosphere to obtain an optical fiber preform; and S5, drawing the optical fiber preform to form the optical fiber. According to the preparation method, external chemical vapor deposition and in-tube vapor deposition are utilized to achieve better optical fiber profile matching and viscosity matching.
Owner:YANGTZE OPTICAL FIBRE & CABLE CO LTD

A closed cooling tower

The utility model relates to closed cooling tower technical field, concretely relates to a closed cooling tower, including cooling tower body, heat exchange plate and filler, the heat exchange coil pipe is equipped with in the cooling tower body inner chamber, the top surface and the bottom surface of heat exchange coil pipe are spaced apart and are welded with a plurality of heat exchange plates, the filler sets up between each layer water pipe of heat exchange coil pipe, the utility model discloses spaced apart and are welded with a plurality of heat exchange plates on the top surface and the bottom surface of heat exchange coil pipe, utilize heat exchange plate to increase the formation area of water film, namely increased the effective area of evaporative heat dissipation, to the circulating water cooling effect of flowing in heat exchange coil pipe is thus promoted, simultaneously adds the filler between each layer water pipe of heat exchange coil pipe, utilizes the filler to scatter, spreads out, forms extremely thin water film or breaks into a large number of small water drop with big granule water drop or water flow, maximizes the contact area and contact time between water and air, thereby efficiently carries out heat exchange.
Owner:福州新福兴玻璃科技有限公司 +4

Hydraulic oil cylinder device and hydraulic driving system

The utility model provides a hydraulic oil cylinder device and a hydraulic driving system. The hydraulic oil cylinder device comprises a device body, a first piston assembly and a second piston assembly. The device main body comprises a first end cover piece, a first cylinder barrel, a middle end cover piece, a second cylinder barrel and a second end cover piece, the first end cover piece is provided with a first oil port and a first oil cavity which are communicated with each other, and the first end cover piece is provided with a convex ring part; the first cylinder barrel is provided with a first piston cavity communicated with the first oil cavity, and the convex ring part is located in the first piston cavity and connected with the first cylinder barrel; the first piston assembly is arranged in the first piston cavity and the first sliding through groove in a penetrating mode and connected with the first cylinder barrel and the middle end cover piece in a sliding mode. The first piston assembly is used for abutting against the convex ring part when sliding to one end of the first piston cavity; the second piston assembly is in sliding connection with the second cylinder barrel and the second end cover piece, and the second piston assembly further abuts against the first piston assembly. The hydraulic oil cylinder device is high in working efficiency.
Owner:深圳市科斯腾液压设备有限公司

Police anti-riot radial efficient low-resistance canister

The utility model relates to a product matched with a police gas mask for special tasks such as special duty and law enforcement, group disturbance and violence and terrorism events and high-risk occasions, in particular to a police anti-riot radial efficient low-resistance canister. The utility model relates to a dust filter which comprises a tank body, a filter body, dust filter cloth a, a middle air passage, a base, an upper fixing plate, an annular radial smoke filter layer, a filter layer partition plate, dust filter cloth b and a lower fixing plate, during air suction, air enters from an air inlet hole of the base, is upwards and annularly distributed on the inner wall of the tank body through an interlayer formed by the lower fixing plate and the base, and then radially enters through the annular radial smoke filter layer; after smoke and dust particles in the gas are filtered out, the gas enters the filtering body to filter out toxic and harmful gas, and then the gas enters the mask through the middle gas channel. The structure is compact, wearing is comfortable, and the canister is convenient to store and use. The problems that in the prior art, no special comprehensive gas defense filter tank for police exists, and only an industrial comprehensive gas filter tank is used, so that the service time is short, and the protection effect is poor are solved.
Owner:陈思维 +3

Liquid metal battery

The invention provides a liquid metal battery, and relates to the technical field of battery structures, the liquid metal battery comprises a positive electrode shell, a positive electrode cover plate, a negative electrode current collector, foam metal and an electrode sleeve assembly; the positive pole cover plate fixedly covers the positive pole shell, the electrode sleeve assembly comprises an outer sleeve and an electrode core rod arranged in the outer sleeve, an insulating sleeve is arranged between the inner wall of the outer sleeve and the outer wall of the outer sleeve, and the foam metal is fixedly connected to the lower surface of the current collecting half plate. The battery structure has the beneficial effects that the outer sleeve and the electrode core rod of the battery structure are positioned on the outer side of the positive electrode shell and are isolated by the insulating sleeve, so that positive and negative electrode materials of a liquid metal battery can be arranged in the positive electrode shell in parallel, the internal space volume of the battery is utilized to the maximum extent, the energy density of the battery is improved, and the service life of the battery is prolonged. And the lower end of the outer sleeve is completely immersed in the electrolyte, so that the insulating sleeve is prevented from being eroded by negative electrode metal steam, and the service life of the battery sealing insulating part is prolonged.
Owner:WUHAN JIZHAO ENERGY STORAGE TECH CO LTD

A low-inductance packaging structure and packaging method for a power semiconductor module

ActiveCN113035847BReduce electromagnetic oscillationImprove reliabilitySemiconductor/solid-state device detailsSolid-state devices
The present invention relates to the technical field of power semiconductor modules, and proposes a low-inductance packaging structure of a power semiconductor module, comprising a substrate and a power semiconductor module unit arranged on the substrate, the power semiconductor module unit is used to form a dual-switch circuit structure capable of reducing inductance, the power semiconductor module unit comprises a plurality of lining plates arranged at intervals on the substrate, adjacent lining plates are connected by a first bonding wire, two connected lining plates are connected with a power terminal group extending out of an outer tube shell, the power terminal group comprises two sub-power terminals which are partially overlapped but not in contact with each other, and are used to generate electromagnetic coupling when the two sub-power terminals conduct currents in different directions to reduce inductance; a low-inductance packaging method of a power semiconductor module is also proposed, which is used to manufacture the low-inductance packaging structure of a power semiconductor module proposed by the present invention. The present invention has the advantages of high reliability, high power density and low inductance.
Owner:ZHUZHOU CRRC TIMES SEMICON CO LTD

Electric coking processor

The utility model discloses an electric coke catching processor which comprises a coke catching tank body, an air inlet is formed in one side of the lower end of the coke catching tank body, a sewage draining outlet is formed in the bottom of the coke catching tank body, a smoke discharging opening is further formed in the top of the coke catching tank body, a plurality of honeycomb-shaped anode tubes are evenly distributed on the upper portion in the coke catching tank body, and cathode wires are arranged in the anode tubes. The inner wall of the anode tube is not in contact with the cathode wire, cathode hanging brackets are transversely arranged at the positions, corresponding to the upper end and the lower end of the anode tube, in the coke catching tank body respectively, the upper end and the lower end of the cathode wire are fixedly connected with the cathode hanging brackets respectively, and a high-frequency power supply is arranged on the coke catching tank body. The cathode hanging brackets are arranged at the upper end and the lower end of the anode tube, so that the upper end and the lower end of the cathode wire are fixed, the working stability of the cathode wire is ensured, the cathode wire is prevented from being in contact with the inner wall of the anode tube, and the anode tube adopts a honeycomb structure, so that the effective oil catching area can be greatly increased; therefore, the oil catching efficiency is improved.
Owner:HEBEI LEXIN ENVIRONMENTAL PROTECTION TECH CO LTD