27results about How to "Optimal Design Structure" patented technology

The invention relates to the technical field of terahertz, in particular to a terahertz sensor array design optimization method based on metasurface enhancement, which improves the performance of the terahertz sensor array in the aspects of sensitivity, resolution, frequency response and the like through multi-dimensional optimization design, obtains initial parameters of the array based on a physical model, and improves the accuracy of the design of the terahertz sensor array. By optimizing the structure and the arrangement mode of the metasurface unit and combining electromagnetic simulation analysis, the transmission efficiency and the phase regulation and control capability of terahertz waves are improved, the performance change of the sensor under high-temperature and high-stress conditions is evaluated through thermal effect and stress field simulation, the stability and the reliability of the sensor in a complex environment are ensured, and the application range of the sensor is widened. Based on laboratory testing, data of key performance indexes such as sensitivity, resolution and response time are fed back, design parameters are adjusted, and iterative optimization is completed; according to the invention, through combination of multi-dimensional simulation and experimental feedback, the performance and environmental adaptability of the terahertz sensor array are significantly improved, and the terahertz sensor array is suitable for wide terahertz detection application.

The invention provides an elevator intelligent air curtain and a semiconductor refrigeration control method. The method comprises the steps that the historical temperature and airflow distribution data in an elevator are obtained; according to historical temperature and airflow distribution data, training a temperature and airflow distribution prediction model by adopting a long-short-term memory network; acquiring real-time temperature and airflow distribution data in the elevator, inputting the temperature and airflow distribution prediction model, and predicting future temperature and airflow distribution; according to the predicted temperature and airflow distribution, an optimization algorithm is adopted to calculate the opening angle of the air curtain and the refrigeration power parameter of the refrigeration cold piece, and the optimal control strategy of the air curtain and the refrigeration cold piece is obtained with the temperature control precision and the system energy consumption as optimization targets; and parameters in the optimal control strategy are input into a controller of the air curtain and the refrigerating fins, the air speed and the air direction of the air curtain and the refrigerating power of the refrigerating fins are adjusted, and optimal control over the temperature and airflow distribution in the elevator is achieved.

The invention relates to an intelligent cerebrovascular stent based on polymer short fibers and a preparation method thereof. The method comprises the following steps: carrying out electrostatic spinning on a polymer spinning solution to obtain polymer long fibers, freezing the polymer long fibers in liquid nitrogen, and carrying out low-temperature shearing dispersion to obtain polymer short fibers; a polymer in the polymer spinning solution is at least one of polycaprolactone, polylactic acid, gelatin, cellulose, fibroin, collagen and chitosan; uniformly mixing the temperature response high-molecular polymer and the polymer short fiber to obtain a 4D printing raw material; and designing a 4D printing model of a spider-leg-imitating structure, and performing 4D printing on a 4D printing raw material to obtain the intelligent cerebrovascular stent. According to the preparation method, the intelligent cerebrovascular stent with the spider-leg-imitating structure is prepared, the spider-leg-imitating structure design and the introduction of the polymer short fibers can endow the cerebrovascular stent with better shape adaptability and intelligent responsiveness, and the mechanical property and the anti-skid property of the cerebrovascular stent are effectively improved.

The present invention provides a device and method for preparing gas hydrates and in-situ detection of their physical parameters. The device includes a gas hydrate preparation unit, a pressure regulating unit, a filtering unit, and a physical parameter detection unit; the gas hydrate preparation unit has N interconnected pipe sections in the height direction, N ≥ 2; the gas hydrate preparation unit is provided with an input port and an output port for materials, and the input port and the output port are connected to the cavity of the gas hydrate preparation unit; the pressure regulating unit is connected to the gas hydrate preparation unit, the physical parameter detection unit is arranged on the peripheral wall or bottom wall of the gas hydrate preparation unit, and the filtering unit is at least partially located at the output port. The device has a simple structure and can realize accurate measurement of the physical parameters of pure gas hydrates and hydrate-containing sediments. It is expected to be used as an important detection equipment in related fields such as natural gas hydrate exploration and development and oil and gas pipeline hydrate prevention and control.

A tool integrated cabinet for rail transit vehicles includes a shell, a pullable support frame, a damping universal roller and a folding seat storage cabin. The support frame is linearly guided through the sliding cooperation of a T-shaped guide rail and a clamping block. The stability of the support frame in a vehicle vibration environment is improved by the antiskid rubber material and damping design of the roller. The inside of the support frame adopts a modular partition structure. A fire extinguisher is fixed through the placement grooves of first and second support plates. The bottom plate cooperates with a guide groove to realize the quick taking and placing of an escape ladder. A groove is internally provided with a slide rail type folding seat storage cabin. The folding seat storage cabin is linked with a storage guide plate through a handle passage to realize the vertical partition management of emergency equipment and auxiliary tools. In addition, the conical self-locking structure and spring elastic pre-tightening mechanism of the plug rod and plug plate can effectively prevent the accidental sliding of the support frame. The combination innovation of the T-shaped guide rail, damping roller and folding cabin integration significantly enhances the safety and convenience of rail transit emergency equipment management.

The invention discloses a safety electricity terminal gateway for an intelligent power grid and a signal acquisition and transmission method thereof, and belongs to the technical field of power system automation. According to the technical scheme, a central processing unit is respectively connected with a communication interface, a sensor interface relay, a contactor, a card reader interface, a communication module and a power supply module; and the power supply module is respectively connected with the communication interface, the sensor interface, the relay, the contactor, the card reader interface and the communication module. The safety electricity terminal gateway equipment for the intelligent power grid and the signal acquisition and transmission method thereof have the beneficial effects that the obvious beneficial effects are shown, the accuracy and the processing capability of data acquisition are improved, the stability and the reliability of communication are also ensured, the safety of a system is improved, and the safety electricity terminal gateway equipment is suitable for popularization and application. The structural design and the connection relation of the equipment are optimized, and visual equipment state feedback and remote control functions are provided. The beneficial effects are beneficial for promoting the development and application of an intelligent power grid technology and improving the intelligent level and the operation efficiency of a power system.

The utility model relates to an anti-expansion vapor chamber which comprises an upper shell plate, a first liquid absorbing core, a lower shell plate, a second liquid absorbing core and a working medium, the upper shell plate is connected with the lower shell plate, and the upper shell plate and the lower shell plate are both provided with grooves used for forming an upper inner cavity and a lower inner cavity; a plurality of first supporting columns are distributed in the groove of the upper shell plate, and a plurality of through holes corresponding to the first supporting columns are distributed in the first wick, so that the first supporting columns penetrate through the through holes to mount the first wick in the upper inner cavity of the upper shell plate; a plurality of second supporting columns matched with the first supporting columns are distributed in the groove of the lower shell plate, and a plurality of through holes corresponding to the second supporting columns are distributed in the second wick, so that the two supporting columns penetrate through the through holes to mount the second wick in the lower inner cavity of the lower shell plate; the working medium is phase change liquid flowing in the groove, and heat of the upper shell plate and the lower shell plate is dispersed to the vapor chamber. The vapor chamber provided by the utility model has higher heat dissipation performance, and can overcome the problem that the expansion resistance of the vapor chamber is insufficient in the heat dissipation of the battery.

The utility model relates to the technical field of polishing equipment, in particular to a polishing device for a polishing robot, which comprises a mounting shell, a sealing dismounting plate arranged on the front side of the mounting shell, a partition plate arranged in the mounting shell, a driving mounting cavity arranged on the upper side of the partition plate, an air guide channel arranged on the lower side of the partition plate, and a waste port arranged at the left end of the lower side of the mounting shell. A feeding port is formed in the right end of the lower side of the mounting shell, a waste box is arranged on the lower side of the waste port, a vibration filtering assembly is arranged between the waste box and the waste port, a protective shell is arranged on the lower side of the feeding port, a dust collection and grinding assembly is arranged in the protective shell, and a driving assembly used for driving the dust collection and grinding assembly is arranged in the driving mounting cavity. The grinding wheel in the dust collection grinding assembly can conduct grinding operation on a workpiece, meanwhile, in the grinding process, the impeller rotates along with the grinding wheel, suction force is generated, dust generated by grinding is sucked into the protection shell and enters the waste box through the air guide channel, and dust flying is effectively avoided.

The utility model discloses a power supply module with a dual filtering structure, which comprises an aluminum shell, an outer support, support screws, side plates and heat dissipation holes, the two sides of the aluminum shell are connected with the two side plates through a plurality of support screws and outer support bolts, and the heat dissipation holes are equidistantly arranged on the surfaces of the side plates. According to the utility model, the design structure of the existing power supply module is improved, double physical isolation is carried out on high and low frequency interference through a double-shell structure, and meanwhile, a multi-outlet heat dissipation structure is added, so that the heat dissipation capability of the power supply module is improved.

The invention discloses an intelligent low-temperature-resistant collision buffering device suitable for an LNG (liquefied natural gas) floating transmission system, and relates to the technical field of safety protection of the LNG floating transmission system.The intelligent low-temperature-resistant collision buffering device comprises a composite buffering device, a shell and a bottom plate; an outer rigid supporting layer, a middle energy absorption layer and an inner flexible contact layer are sequentially arranged from outside to inside, the outer rigid supporting layer, the middle energy absorption layer and the inner flexible contact layer are fixedly connected into a whole in a gluing or integral forming mode, and the outer side of the composite buffering device and the outer side of the internal mechanism are wrapped with the shell. The protective shell is fixedly connected with the bottom plate to form a protective shell; through deep integration of material innovation, structure optimization and intelligent control, the technical problems of low-temperature failure, low energy absorption efficiency, poor posture adaptation, no intelligent regulation and control and the like of a traditional buffer device in an LNG floating transmission scene are comprehensively solved, and the reliability, the adaptability and the intelligent level of collision protection are remarkably improved.

The application discloses a battery pack leakage current calculation method and belongs to the technical field of battery packs. i ; the equivalent dielectric constant epsilon between conductors is calculated j ; the parasitic capacitance C s between conductors is calculated; the leakage current I s between conductors is calculated; and the total leakage current I of the battery pack is calculated. The total leakage current value of the battery pack is calculated by calculating the capacitance values and the leakage current values of the various parasitic capacitances in the calculation model. The application can control the size of the battery pack leakage current, prevent safety accidents caused by the leakage current, improve the safety and reliability of the designed battery pack, and reduce the detection and sample costs.

The present invention relates to a packaging box appearance inspection device that is conducive to defective product sorting operations, including a machine, a conveying part, a high-speed CCD camera and a wind-powered defective product sorting part. The machine includes a base and a protective cabin. The protective cabin can be detachably buckled on the base to form a detection cavity together. The conveying part is used to carry the packaging box to be inspected and cross the detection cavity along the left and right directions. High-speed CCD cameras are evenly distributed on the periphery of the conveying part, so as to be used to capture images of each side of the packaging box to be inspected in real time. The conveying part includes a first belt conveying part and a second belt conveying part arranged side by side. The wind-powered defective product sorting part is built into the detection cavity, and includes a mounting base, a blow box and a pressure air output part. The pressure air output part is detachably fixed to the base. The blow box is detachably fixed to the mounting base, and its front air outlet and rear air outlet correspond to the first belt conveying part and the second belt conveying part respectively.

The invention provides a sanitary towel double-station arranging mechanism, and relates to the technical field of sanitary towel production. The double-station sanitary towel arranging mechanism comprises an arranging rack mechanism, an arranging lifting mechanism, a first arranging driving shaft, a second arranging driving shaft, an arranging tensioning mechanism, an equipment frame and a driven shaft, the arranging rack mechanism comprises two supporting plates, and a plurality of vertical plates are fixedly arranged on the outer sides of the two supporting plates; a left baffle and a right baffle are fixedly arranged at the upper end of the front-end vertical plate and the upper end of the rear-end vertical plate, and the two supporting plates are fixedly arranged through a cross beam. According to the sanitary napkin packaging machine, when a product A and a product B are produced, the product A is pushed into the sanitary napkin packaging machine through the right pushing handle after coming out of the main machine, the product B is pushed into the sanitary napkin packaging machine through the left pushing handle after coming out of the main machine, different products enter different driving levers, and the distance between the driving levers can be adjusted through the electromagnetic clutch; an operator only needs to change parameters to achieve model changing, the adjusting mode is simple, manual offline putting is not needed, and efficiency is greatly improved.

The utility model relates to a vapor chamber structure with fins, which comprises a support plate shell, support columns, a liquid injection port, a liquid absorption core and a fin cover plate, the support columns are arranged in the support plate shell in an array mode, the liquid injection port is arranged on the outer side of the support plate shell and communicated with the inside of the support plate shell, and the liquid absorption core is arranged in the fin cover plate. The wick surrounds the supporting column and is arranged in the supporting plate shell to form steam cavities used for heat exchange, a welding layer used for being connected with the supporting plate shell and the fin cover plate is arranged on the wall of the wick between every two adjacent steam cavities, and a plurality of fins arranged in an array mode are arranged at the top end of the fin cover plate. The fin cover plate is fixed to the top end of the supporting plate shell in a covering mode and conducts convection heat exchange with the outside through the fins. The vapor chamber can effectively solve the problem that the convection heat exchange efficiency of the vapor chamber is too low, and the convection heat dissipation efficiency of the vapor chamber is improved.

This invention provides a graphene three-electrode coplanar standard electrode and its application. Specifically, three coplanar electrodes are fixedly disposed on an electrode substrate, which are, from left to right, a first electrode, a second electrode, and a third electrode. The first electrode includes a first pin (1), a first guide portion (4), and a first detection layer (7); the second electrode includes a second pin (2) and a second guide portion (5); and the third electrode includes a third pin (3), a third guide portion (6), and a second detection layer (8). An electrode modification hole (9) is formed by drilling a hole in the electrode substrate and is placed directly above the second electrode. A through hole (10) is provided in the middle of the second guide portion (5). A back electrode is disposed on the back side of the electrode substrate, specifically including a back pin (11), a back guide portion (12), and an electrode modification ring (13). The back guide portion (12) is provided with a through hole (10), and the electrode modification hole (9) is provided inside the inner ring of the electrode modification ring (13).

This invention discloses a sequential hydrogen supply valve control device, including a gas filling module and a valve control module. The first valve control component includes a first valve body and a first valve core. The first valve core divides the interior of the first valve body into a first high-pressure chamber, a first low-pressure chamber, and a first detection chamber. The first valve body is also provided with a first high-pressure inlet communicating with the first high-pressure chamber, a first low-pressure inlet communicating with the first low-pressure chamber, a first gas detection port communicating with the first detection chamber, and a first gas outlet. The first low-pressure inlet is used to connect with a first gas storage source, the first high-pressure inlet is used to connect with a second gas storage source, the first gas outlet supplies hydrogen to the gas-using equipment, and the first gas detection port is used to connect with the gas-using equipment so that the first detection gas pressure in the first detection chamber can reflect the gas pressure contained in the gas-using equipment. The pressure difference between the first detection gas pressure and the first supply gas pressure can drive the first valve core to move in the first valve body. This design has a simple structure and low layout and maintenance costs.

The utility model discloses a kind of multi-cavity radio frequency processing devices, belong to radio frequency power supply technical field, solve the radio frequency processing efficiency low, processing effect is not ideal and other problems caused by the simple structure of existing radio frequency processing device, simple control mode.The device includes: Q controller and signal distributor, N radio frequency module, matching module and cavity;Wherein, the output end of controller is connected with the input end of signal distributor one by one, and the input end of each signal distributor receives the PWM control signal of a way output by corresponding controller;Each signal distributor includes N output ends;The input end of nth radio frequency module is connected to the nth output end of all signal distributors, the input end of nth matching module is connected to the output end of nth radio frequency module, and the output end of nth matching module is connected to nth cavity;Q, N are all integers greater than 1, and n takes 1 to N.

The application provides an anti-metal clutter dual-port microsound identifier, comprising a microsound chip and a dual-polarized antenna; the dual-polarized antenna is connected to the microsound chip; a microsound chip receiving end and a microsound chip transmitting end are arranged on the microsound chip; the microsound chip comprises a plurality of one-way single-phase transducers; the one-way single-phase transducers comprise input end one-way single-phase transducers and output end one-way single-phase transducers; the input end one-way single-phase transducers are connected to the microsound chip receiving end; and the output end one-way single-phase transducers are connected to the microsound chip transmitting end. Through the input and output ports of the microsound chip and the dual-polarized antenna, polarization isolation of input and output is realized, and external noise is well suppressed, so that metal clutter such as multipath fading and far target clutter interference in an industrial environment can be effectively suppressed.

The invention discloses a method for detecting the exterior wall of a building, and relates to the technical field of detecting the exterior wall of a building. A data detection module is used to respectively detect and experimentally obtain detection data of a pore volume KXZ, a pore surface area KXB, an average particle diameter KLZ, a particle density KM, a Darcy coefficient d, an external pressure difference WY, a material thickness CH and a weathering resistance coefficient KF. The maintenance cost WC, a maintenance cycle WZ and the detection data of historical data of the building exterior wall are combined, and a data evaluation processing module is used to evaluate the pore characteristics, permeability and durability. The detection and evaluation results of the pore characteristics, permeability and durability are comprehensively analyzed to evaluate the overall performance of the exterior wall, and corresponding repair, transformation and reinforcement suggestions are proposed according to the evaluation results. The invention realizes a comprehensive and accurate evaluation of the performance of the exterior wall material by constructing a comprehensive evaluation system, adopting a quantitative evaluation method, optimizing material selection and guiding construction and maintenance.

The invention provides a novel three-compartment vehicle L-shaped electric push rod torsion spring mechanism which comprises an L-shaped electric supporting rod and a vehicle door connecting bent pipe, an elastic connecting assembly is arranged between the L-shaped electric supporting rod and a vehicle door mounting support and comprises a torsion spring support and a torsion spring, the torsion spring support is connected between the L-shaped electric supporting rod and the vehicle door connecting bent pipe in a pin joint mode, and the torsion spring is connected between the L-shaped electric supporting rod and the vehicle door connecting bent pipe in a pin joint mode. A torsion spring installation pin shaft is arranged between the vehicle door connecting bent pipe and the torsion spring support, the torsion spring is arranged on the surface of the torsion spring installation pin shaft in a sleeved mode, the L-shaped electric supporting rod tailstock is in pin joint with a vehicle body installation seat used for supporting the L-shaped electric supporting rod, and a pin shaft is arranged at the pin joint position of the vehicle body installation seat and the L-shaped electric supporting rod. The electric push rod torsion spring mechanism for the automobile tail door can be put into use on an automobile body with a small tail box structure and a hatchback door structure, is particularly suitable for an electric push rod mechanism arranged in a small space, and can realize the effects that the electric support rod is small in stroke, proper in force arm parameter, uncomplicated in structure and low in development cost and does not interfere with automobile body parts.