28results about How to "Short transmission path" patented technology

The invention relates to a hot zone gas treatment unit of a solid oxide fuel cell. A mixer is transversely arranged in a combustion pipe, a combustion cavity is formed in the lower end of the mixer, an anode waste gas conveying pipe and a cathode waste gas conveying pipe are arranged at the upper end of the mixer, the anode waste gas conveying pipe and the cathode waste gas conveying pipe are connected into the galvanic pile, and the lower ends of the anode waste gas conveying pipe and the cathode waste gas conveying pipe are communicated with the combustion cavity. The preheating pipe and the heat exchanger are sleeved on the combustion pipe, a deionized water conveying pipe, a fuel conveying pipe and a mixed gas conveying pipe are arranged outside the preheating pipe, the mixed gas conveying pipe is communicated with the reformer, a reforming conveying pipe at the lower end of the reformer penetrates through the heat exchanger and is connected into the electric pile, and an air pipe penetrates through the heat exchanger and is connected into the electric pile. Waste gas conveyed by the anode waste gas conveying pipe and the cathode waste gas conveying pipe is combusted in the combustion cavity to generate heat, preheated fuel and deionized water are vaporized, the mixed fuel and vaporized deionized water enter the reformer, then are heated by the heat exchanger and enter the electric pile, and heat recycling is achieved.

The invention provides porous carbon with a secondary particle configuration, a preparation method and application of the porous carbon, a gas-phase silicon carbon material and application of the gas-phase silicon carbon material, and relates to the technical field of porous carbons.The method comprises the steps that a carbon source is subjected to a polymerization reaction, primary particles are generated firstly, the primary particles are fused again, and a secondary particle hard carbon precursor is obtained; carrying out pyrolysis carbonization on the secondary particle hard carbon precursor, and then carrying out activation treatment to obtain porous carbon with a secondary particle configuration; the porous carbon with the secondary particle configuration is applied to the gas-phase silicon-carbon material, so that the technical problems of limited expansion improvement and rate increase of the existing gas-phase silicon-carbon material due to the fact that the porous carbon is of a single-particle structure are solved, and the technical effects of effectively reducing the charging volume expansion and remarkably improving the rate performance are achieved.

A distributed model training optimization method, system, medium and product relate to the field of model training, by adopting the above technical scheme, the training optimization system divides a terminal device into a plurality of device groups and sets a relay node in each device group, when a preset synchronization condition is satisfied, there is no need to send the information to the terminal device one by one, and the synchronization efficiency is improved. And the model parameters only need to be sent to the relay node, so that hierarchical transmission of the model parameters is realized. After the parameter difference value is calculated, the training optimization system screens the to-be-updated parameters, meanwhile, the high-frequency synchronization parameter set and the low-frequency synchronization parameter set are determined according to the synchronization frequency of the to-be-updated parameters so that different to-be-updated parameters can be sent at different moments, and due to the differentiated parameter synchronization strategy, important parameters can be updated in time, and the updating speed of the to-be-updated parameters is improved. And the performance bottleneck caused by frequently transmitting all parameters is avoided, and the network communication overhead is remarkably reduced, so that the overall efficiency of distributed training is improved.

The invention provides a finger of a dexterous hand, and relates to the technical field of artificial intelligence, the finger of the dexterous hand comprises at least two knuckles, and the at least two knuckles comprise a first knuckle and a second knuckle which are sequentially arranged in the direction from the finger root to the fingertip in the axial direction of the finger; the first knuckles are provided with first driving modules used for driving the first knuckles, and the second knuckles are provided with second driving modules used for driving the second knuckles. Wherein the second knuckle comprises a fingertip and a connecting part, the fingertip is installed on the connecting part through a detachable component, and the connecting part is connected with the first knuckle. In the embodiment of the invention, each knuckle is directly driven, the transmission path is short, and the control precision can be improved. And through the detachable fingertips, the fingertips can be quickly replaced according to actual scene requirements, the whole hand does not need to be replaced, and the cost is reduced.

The application provides a D-band one-dimensional DBF-AIP microsystem architecture, comprising a quartz substrate, an on-chip antenna arranged on the upper surface of the quartz substrate, an RFIC chip arranged on the lower surface of the quartz substrate, a microwave board arranged below the quartz substrate, and BGA solder balls for connecting the quartz substrate and the microwave board. The D-band one-dimensional DBF-AIP microsystem architecture provided by the application maximally shortens the signal transmission distance, reduces the parasitic parameters, and obtains better performance, and meanwhile, the D-band one-dimensional DBF-AIP microsystem architecture is small in size, light in weight, and suitable for large-scale integration.

The invention provides a solid-state secondary battery and an electric device, the solid-state secondary battery comprises a composite pole piece, the composite pole piece comprises a positive electrode material layer, a negative electrode material layer and a composite current collector located between the positive electrode material layer and the negative electrode material layer, the composite current collector comprises a porous electrolyte membrane as well as a first conductive layer and a second conductive layer which are respectively positioned on two surfaces of the porous electrolyte membrane; the porous electrolyte membrane comprises a solid electrolyte, a polymer and an electrolyte salt, and the positive electrode material layer and / or the negative electrode material layer comprise the polymer. The porous electrolyte membrane and the positive electrode material layer and / or the negative electrode material layer contain the same polymer, so that the gaps between the positive electrode material layer and the composite current collector and between the negative electrode material layer and the composite current collector can be reduced, and the contact impedance of the solid-state secondary battery can be reduced; therefore, the expansion rate and the capacity retention rate of the solid-state secondary battery in the circulating process are improved.

The invention relates to the technical field of speed reducer fault diagnosis, in particular to a precise speed reducer intelligent fault diagnosis method based on multi-dimensional encoder signals. The method comprises the steps of collecting an encoder signal of an input end of a reducer, and extracting an input angle position of the input end; collecting an encoder signal at the output end of the speed reducer, and extracting an output angle position of the output end; obtaining the transmission ratio of the reducer, and calculating a transmission error according to the input angular position, the output angular position and the transmission ratio; calculating an output instantaneous angular velocity and an output instantaneous angular acceleration corresponding to the output angular position; performing data preprocessing on the transmission error, the output instantaneous angular velocity and the output instantaneous angular acceleration to obtain multi-dimensional fusion data; and inputting the multi-dimensional fusion data into a pre-trained fault diagnosis model to obtain the running state of the speed reducer. Reducer fault feature recognition is carried out based on the fused multidimensional encoder time domain signals, the problem that the signal type for fault diagnosis is single is solved, and the fault diagnosis precision is improved.

The present application proposes a composite material and its preparation method and application, wherein the composite material includes a decontamination layer and a catalytic layer, the decontamination layer is an organic-inorganic composite film having both hydrophobicity and oleophobicity; the catalytic layer is arranged on the outer surface of the decontamination layer, and the catalytic layer is a hydrogel loaded with a catalyst. The composite material of the present application, the decontamination layer has strong hydrophobicity and anti-fouling ability, can prevent impurities in water from entering the catalytic layer, and only allows water vapor to pass; the catalytic layer also plays a role in promoting water vapor to re-form liquid water, promoting water to pass through and photocatalytic in-situ reaction, and the large-area carrier increases the catalytic active surface area, thereby improving the efficiency of solar hydrogen production.

The invention provides silicate fiber doped battery slurry, a preparation method thereof, a silicon-based electrode and an ion battery, and aims to improve the mechanical strength, the first-circle coulombic efficiency and the cycle life of the electrode. The silicate fiber doped slurry is prepared by taking a silicon-based material, silicate fibers and a binder as main raw materials. Natural characteristics of high specific surface area and high mechanical hardness of silicate fibers are fully utilized, the problem of electrode structure damage caused by violent volume change of a silicon-based negative electrode material in the charging and discharging process can be effectively solved by utilizing the silicate fiber doped slurry, the structural stability of an electrode is improved, and the cycle life of the electrode is prolonged; the overgrowth of the SEI film is reduced, so that the irreversible lithium ion loss in the first-time charging process is reduced, and the first-circle coulombic efficiency is improved.

The invention discloses a positive electrode active material and a preparation method and application thereof. The positive electrode active material comprises a ternary material, the ternary material comprises a nickel cobalt lithium manganate inner core and a first coating layer coating the nickel cobalt lithium manganate inner core, the chemical formula of the first coating layer is Li (AlxCo1-x) O2-delta F delta, x is larger than or equal to 0.1 and smaller than or equal to 0.6, and delta is larger than or equal to 0.05 and smaller than or equal to 0.2. The positive electrode active material can improve the interface stability, and can improve the interface compatibility of a ternary material and a lithium iron phosphate material when the ternary material and the lithium iron phosphate material are compounded for use.

The utility model discloses a negative pole piece, a battery cell and a battery, the negative pole piece comprises a current collector, the current collector comprises a first surface and a second surface which are opposite to each other, a first coating and a second coating are arranged on the first surface and / or the second surface, and the height of the first coating is different from that of the second coating. According to the lithium battery, the coatings with different heights are arranged on the current collector, so that the energy density of the lithium battery is improved, the advantage that the transmission path of lithium ions is relatively short is kept, and the problem that the charging speed of a thick electrode is slow is effectively solved.

The invention relates to the technical field of electrolytic baths, in particular to an integrated ordered anode assembly of a PEM electrolytic bath and the PEM electrolytic bath. The anode assembly comprises a polar plate structure, a boss runner structure and an ordered diffusion structure which are integrally formed by utilizing a metal powder material through 3D printing. The polar plate structure is provided with an external power interface and a water inlet. Water for electrolysis enters the flow channel structure through the water inlet and reaches the surface of the reaction layer through the diffusion structure for electrochemical reaction. A traditional polar plate structure, a snake-shaped runner structure and a disordered metal felt'sandwich 'laminated structure are broken through, and the polar plate structure, the boss runner structure and the ordered diffusion structure integrated ordered anode assembly are integrally formed through 3D printing by utilizing a metal powder material, so that interface contact resistance between traditional laminated layers can be eliminated, and the performance of the anode assembly is improved. And meanwhile, based on an ordered structure, transmission loss caused by heat and mass transfer is reduced, so that the reaction efficiency is higher, and the weight, the size and the number of components of the electrolytic tank are reduced.

The present invention discloses a millimeter wave packaged antenna array in the field of antennas, including a bare chip pin structure, a printed circuit board, a waveguide transmission line structure and a rectangular horn antenna array, wherein the rectangular horn antenna array is located directly above the bare chip, and an extended transmission line connecting the bare chip pin structure and the waveguide transmission line structure is provided on the printed circuit board, wherein the extended transmission line includes a coplanar waveguide CPW transmission line segment, a substrate integrated waveguide SIW transmission line segment and a rectangular waveguide transmission interface. The antenna array adopts 2P2M packaging and plastic metallization processing technology to integrate the bare chip and the antenna in an integrated manner, with a short transmission path, thus achieving higher transmission efficiency and lower power consumption; the antenna adopts Z-shaped rectangular waveguide feeding, so that the antenna is located directly above the chip, reducing the area occupied by the antenna in the package; the antenna has stable matching and radiation performance, and the integrated design of the bare chip and the antenna provides convenience for applications such as millimeter wave vehicle-mounted radar.

The utility model discloses a novel speed reducer motor realizes miniaturization, light weight and integration, and it includes motor, speed reducer, first bolt and second bolt, the motor includes first casing and motor shaft, the output end surface of first casing is square, and the first perforation is established in all the four corner positions, the speed reducer includes connecting plate, second casing, output shaft and planetary gear, the output end surface shape of connecting plate and first casing is same and is equipped with the first screw hole opposite first perforation, the inner chamber of second casing is equipped with the inner tooth ring, and the end surface facing connecting plate is equipped with a plurality of second screw holes, and connecting plate is equipped with the second perforation opposite second screw hole, the output shaft is rotatably matched in second casing, the planetary gear is rotatably installed in the circumferential surface of inside end portion of output shaft and is driven connection with inner tooth ring and motor shaft simultaneously, first bolt passes through second perforation and is connected with second screw hole threadedly, second bolt passes through first perforation and is connected with first screw hole threadedly, and first casing covers first bolt.

The utility model relates to a high-temperature water electrolysis hydrogen production integrated heat part which comprises a cylindrical air heater, an air preheater, a steam generator, a steam preheater and a steam heater are sequentially and coaxially sleeved on the outer side of the circumference of the air heater, and the air preheater and the steam preheater are connected through an air tail gas connecting pipe. And a sleeve type integrated structure is formed, so that the heat transfer area among the components is large enough, and the heat exchange efficiency is improved.

The invention belongs to the technical field of lithium ion battery positive electrode materials, and provides a carbon-doped lithium manganese iron phosphate positive electrode material and a preparation method thereof.The preparation method comprises the following steps that S1, silicon carbide is added into deionized water, ultrasonic dispersion is conducted, carbon fibers are added, ultrasonic oscillation continues to be conducted for 6-8 h, the mixture is placed in a drying box to be dried at the temperature of 80-120 DEG C, and a carbon-doped lithium manganese iron phosphate positive electrode material is obtained; then depositing for 190-200 hours at 980-1020 DEG C by taking natural gas as carbon source gas, and then carrying out heat treatment at 2000-2100 DEG C to obtain a carbon source; s2, adding a lithium source, an iron source, a manganese source, a phosphorus source and the obtained carbon source into deionized water, and mixing to obtain slurry; s3, grinding the obtained slurry, and performing spray drying to obtain a lithium iron manganese phosphate precursor; and S4, sintering the obtained lithium manganese iron phosphate precursor in an inert atmosphere to obtain the carbon-doped lithium manganese iron phosphate positive electrode material which has excellent specific capacity, charge-discharge cycle performance and high-rate charge-discharge performance.

The application discloses an active air inlet grille, which comprises a frame, blades and a motor, the blades are installed in the frame, the motor is used for driving the blades to rotate, further comprises a torsion bar, an inclined pull rod and a straight pull rod, the motor is directly connected with the torsion bar, two ends of the torsion bar are connected with one of the inclined pull rods respectively, two of the inclined pull rods are connected with one of the straight pull rods respectively, each of the straight pull rods is connected with a plurality of the blades, the blades are fixedly connected with the straight pull rods, and the blades are rotatably connected with the frame; when the motor rotates, the motor is used for driving the torsion bar to rotate, the torsion bar drives two of the inclined pull rods to move along the inclined direction, the inclined pull rods drive the straight pull rods to move along the straight line, and the straight pull rods drive the blades to rotate. The application drives two groups of blades to rotate simultaneously through one motor, the transmission path between the motor and the blades is shortened, the synchronism of the blades is ensured, and single-motor driving is beneficial to cost reduction.

The utility model discloses an electric opening mechanism of automobile side door lock belongs to automobile side door lock technical field. The electric opening mechanism includes motor, electric opening worm, electric opening gear, electric opening connecting rod, electric opening transmission rod, pawl and pawl reset mechanism, and the motor rotates through the worm drive gear, and the gear drives the movement of connecting rod and transmission rod, and transmission rod pushes pawl axle and makes pawl to unlock. The two ends of electric opening connecting rod are connected through the center of electric opening gear shaft, form two force pole structure, make electric opening gear not automatic return after electric opening, realize electronic snow load function, avoid accidental relocking when no reset instruction. The lower part of electric opening gear is equipped with limit groove, and cooperates buffer block and realizes in -place limit and mute effect. The utility model discloses simple structure, small space occupation, high adaptability, has electronic snow load and mute design, improves the intelligent level and use reliability of door lock.

The utility model provides a kind of slitting machine with double shearing system, slitting machine includes cabinet, and uncoiler and downstream separating roller group are equipped in cabinet, and separating roller group is connected left and right shearing system in parallel;Left shearing system is sequentially constituted by left cutting shaft, left deflector roll, left welding roller and left coiling roller, and right shearing system is sequentially constituted by right deflector roll, right cutting shaft, right welding roller and right coiling roller.Through the symmetrical parallel design of double shearing system, the synchronous slitting and separation of double aluminum foil are realized, and the high-speed vibration is balanced by mechanics;The guide rail of cutting shaft and threaded rod drive closed-loop adjusting mechanism cooperate with distance sensor to feedback cutter position in real time, improve cutting edge precision;Electromagnetic lock closed type connecting seat and waste roller linkage control, simplify roller piece replacement process and keep machine clean.The utility model significantly improves the slitting efficiency and finished product qualification rate of ultra-thin aluminum foil.

The present disclosure relates to the technical field of semiconductor and photovoltaic, and particularly relates to a furnace tube inner wall coating device and processing equipment, which solves the problem that the deposition uniformity and deposition rate cannot meet the requirements when depositing a protective coating on the inner wall of the furnace tube in the related art. The furnace tube inner wall coating device comprises a quartz furnace tube with a furnace cavity and a plasma generating assembly, and the plasma generating assembly comprises: at least one inductive line movably connected to the outer wall of the furnace cavity or the furnace tube, the inductive line extending along a first direction and being arranged at a position close to the inner side wall of the quartz furnace tube or a position close to the outer wall of the furnace tube; a driving member connected with the inductive line, and the driving member is configured to drive the inductive line to rotate around the circumference of the inner side wall of the quartz furnace tube or the outer wall of the furnace tube. The furnace tube inner wall coating device and processing equipment provided by the present disclosure can make the protective coating deposited on the inner wall of the furnace tube more uniform and the deposition rate higher.

The invention discloses a conductive terminal and an electric connector, the conductive terminal comprises a first terminal, a second terminal and a third terminal, the second terminal and the first terminal are oppositely arranged in a first direction, the third terminal is located between the first terminal and the second terminal, and an elastic part of the third terminal has elasticity of stretching in a second direction. The elastic part comprises a first bending section, a second bending section and a connecting section, the first bending section is connected with any adjacent second bending section through the connecting section, the connecting section is provided with a first abutting part to abut against the second terminal, and in the third direction, the second bending section is provided with a second abutting part to abut against the second terminal. The third terminal forms a second abutting part and a third abutting part on the two sides of the first abutting part to abut against the first terminal, the connecting section, the first bending section correspondingly connected with the connecting section and the second bending section correspondingly connected with the connecting section are provided with the first abutting part, the second abutting part and the third abutting part, and the capacitance coupling length of the third terminal and the first terminal and the capacitance coupling length of the third terminal and the second terminal are shortened; and the high-frequency performance of the electric connector is improved.

The invention discloses a positive electrode material, an electrochemical device and an electronic device, the positive electrode material is of a sheet structure, the chemical general formula of the positive electrode material is LixNayNiaMncO2, x is greater than or equal to 0.7 and less than or equal to 1.1, y is greater than or equal to 0.003 and less than or equal to 0.2, a is greater than or equal to 0.3 and less than or equal to 0.9, c is greater than or equal to 0.001 and less than or equal to 0.7, x + y is greater than or equal to 0.8 and less than or equal to 1.1, the thickness of the positive electrode material is 0.2-3 microns, and the length-diameter ratio of the positive electrode material is 2-10. The positive electrode material provided by the invention can enable the electrochemical device to have good dynamic performance and cycling stability.

The invention discloses a negative electrode active material, a battery and an electric device, and belongs to the technical field of new energy. The particle size Dv50, the particle size distribution width, the interlayer spacing d002 and the pore volume of the negative electrode active material are controlled in a suitable range, so that the side reaction between the negative electrode active material and the electrolyte is relatively few, the lithium ion transmission path is relatively short, and the negative electrode active material is relatively good in dynamic performance and cycle performance.

The present invention provides a porous carbon with a secondary particle configuration, a preparation method and application thereof, a gas-phase silicon-carbon material and application thereof, and relates to the technical field of porous carbon. A carbon source is subjected to a polymerization reaction to generate primary particles, which are then melted and merged to obtain a secondary particle hard carbon precursor. The secondary particle hard carbon precursor is then pyrolyzed and carbonized, and then activated to obtain a porous carbon with a secondary particle configuration. The present invention applies the porous carbon with a secondary particle configuration to a gas-phase silicon-carbon material, thereby solving the technical problem that the existing gas-phase silicon-carbon material has limited expansion improvement and rate enhancement due to the porous carbon having a single particle structure, thereby achieving the technical effect of effectively reducing charging volume expansion while significantly improving rate performance.

This application relates to the field of battery materials technology, providing a lithium iron phosphate battery material, its precursor, its preparation method, and its applications. The disclosed lithium iron phosphate precursor is spherical, comprising an iron phosphate shell and a carbon-iron oxide network structure within the iron phosphate shell. The disclosed preparation method of the precursor includes using nano-hydrogel particles as templates to adsorb ferric ions onto the surface of the nano-hydrogel particles, then reacting the ferric ions with phosphate ions, followed by calcination to carbonize the nano-hydrogel particles. The disclosed lithium iron phosphate battery material comprises a lithium iron phosphate shell and a carbon-lithium iron phosphate structure within the lithium iron phosphate shell. The disclosed preparation method includes mixing and sintering the precursor with a lithium source. The lithium iron phosphate battery material provided in this application has a unique microstructure that is beneficial for increasing the wetting area of ​​the electrolyte and shortening the lithium ion transport path, thereby improving the rate performance of the battery.

This application provides a 2.5D bridged packaging structure and a 2.5D bridged packaging process, relating to the field of semiconductor packaging technology. The process includes providing an adapter board; the adapter board has a first surface and a second surface disposed opposite to each other; forming a plurality of spaced first trenches on the first surface; forming a first wiring layer within the first trenches; forming second and third trenches on the second surface; forming a second dielectric layer and a second wiring layer within the second trenches, and forming a third dielectric layer and a third wiring layer within the third trenches, with a second metal layer disposed on the surface of the third dielectric layer; mounting a bridge chip; connecting the bridge chip to both the second and first metal layers; forming a heat dissipation trench on the side of the adapter board away from the third wiring layer; and mounting a heat sink in the heat dissipation trench. This process helps alleviate warpage, improves heat dissipation performance, and reduces leakage, short circuits, and overheating caused by parasitic capacitance and other phenomena.

The invention belongs to the technical field of conductive fabrics, and particularly relates to a conductive fabric and a preparation method and application thereof. The preparation method of the conductive fabric comprises the following steps: adding a metal salt into an MXene dispersion liquid to obtain a mixed solution I, immersing a base material into the mixed solution I, and repeatedly pulling to load MXene on the surface of the base material to obtain an MXene-loaded base material; and mixing nickel salt, an organic ligand and a solvent to obtain a mixed solution II, contacting the MXene-loaded base material with the surface of the mixed solution II, then dropwise adding ammonia water into the mixed solution II, carrying out a heating reaction, and drying to obtain the conductive fabric. The prepared conductive fabric is in a sandwich-like form of a PMIA layer, an MXene layer and an MOF layer, a conductive material is not added into the fabric, intrinsic characteristics of the electrostatic textile fabric cannot be damaged, and the problem that in the prior art, mechanical flexibility of the fabric is insufficient is solved on the premise that excellent conductivity is guaranteed.

This invention discloses a signal amplification device and its fabrication method. The fabrication method includes the following steps: preparing a piezoelectric fiber membrane using coaxial electrospinning; immersing the piezoelectric fiber membrane in a PDMS solution under vacuum-assisted immersion to allow the PDMS prepolymer to fully penetrate the pores and interfibers of the piezoelectric fiber membrane, resulting in a PDMS-cured piezoelectric fiber membrane; uniformly depositing a gold thin film on both sides of the PDMS-cured piezoelectric fiber membrane; coating a conductive composite paste onto the surface of the gold thin film to form an electrode layer; and then heating and curing the paste; reliably connecting the device to the pre-reserved pad area of ​​the cured composite electrode using flexible wires or conductive cloth to form electrode leads; and fabricating a transparent encapsulation protective layer on the upper and lower surfaces of the device with lead-out electrodes. This invention directly amplifies the voltage signal at the physical level through structural design, achieving an amplification of 2 to 10 times, depending on the number of stacked layers and the number of series connections, resulting in a significant increase in the output signal amplitude.