1306results about How to "Reduce design cost" patented technology

The invention provides a fuel cell hydrogen supply system and a hydrogen supply method. The fuel cell hydrogen supply system comprises a liquid hydrogen storage tank, a first gas path connected between the liquid hydrogen storage tank and a fuel cell, a second gas path connected in parallel with the first gas path, and a control assembly, a gasification device is arranged on the first gas path, and a gas storage bottle is arranged on the second gas path; the control assembly comprises a controller and a plurality of control valves; the controller controls the plurality of control valves and can respectively control the connection or disconnection of the first gas path and the second gas path, so that the liquid hydrogen in the liquid hydrogen storage tank is conveyed to the fuel cell through the first gas path, and when the pressure of the gaseous hydrogen in the liquid hydrogen storage tank exceeds a first preset pressure threshold value, the gaseous hydrogen is stored in the gas storage bottle through the second gas path; and hydrogen can be supplied to the fuel cell through the second gas path. According to the fuel cell hydrogen supply system, gaseous hydrogen exceeding the first preset pressure threshold in the liquid hydrogen storage tank can be recycled, so that the release of the gaseous hydrogen to the outside is reduced, and the waste of resources is reduced.

The invention discloses a SiC MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) driving circuit and a control method thereof, the SiC MOSFET driving circuit comprises an active current source driving circuit, a SiC MOSFET, a load current detection circuit, a drain-source inter-electrode voltage overshoot detection circuit, an analog-to-digital conversion module and an FPGA (Field Programmable Gate Array) module, and a self-adaptive adjustment algorithm is built in the FPGA module. The load current detection circuit and the drain-source inter-electrode voltage overshoot detection circuit have low requirements for real-time performance, use of high-speed simulation devices is avoided, hardware design cost is reduced, a self-adaptive adjustment algorithm can adjust SiC MOSFET gate drive parameters in real time according to output of the load current detection circuit and the drain-source inter-electrode voltage overshoot detection circuit, and the self-adaptive adjustment algorithm can adjust the gate drive parameters of the SiC MOSFET in real time according to the output of the drain-source inter-electrode voltage overshoot detection circuit. Therefore, overshoot and switching loss are self-adaptively balanced, and safe operation of the SiC MOSFET is ensured. The technical problems that a SiC MOSFET driving circuit driven by an active grid is high in hardware cost and is difficult to balance voltage and current overshoot and switching loss are solved.

According to the intelligent energy-saving analysis method based on the building information model (BIM), building thermal performance parameters and an intelligent simulation algorithm are integrated, building heat conduction, a heat bridge effect and solar heat gain are accurately simulated, and a scientific basis is provided for design. Meanwhile, an energy-saving optimization strategy is automatically generated, such as wall thickness adjustment and window design, so that energy consumption is reduced. Besides, a multidisciplinary cooperative working platform is established, effective implementation of energy-saving measures is ensured, and energy use and maintenance tracking of the whole life cycle of the building are realized and energy-saving performance is continuously optimized in combination with an energy management system. The innovation of the method lies in the automatic and intelligent analysis process, and a comprehensive solution is provided for the field of building energy conservation.

According to the battery pack provided by the invention, the battery pack has good insulating strength, so that the safety performance of the battery pack is improved. The battery pack comprises a box body, a battery array and a structural adhesive; the battery array is accommodated in the box body, the battery array comprises a plurality of battery units which are arranged in parallel, each battery unit comprises a plurality of batteries, the plurality of batteries comprise first batteries and second batteries, the first batteries and the second batteries are arranged alternately, and the first batteries and the second batteries are arranged alternately. The adjacent first battery and second battery are connected through a first buffer pad; the first battery and the second battery respectively comprise a shell and a first insulating film covering the outer surface of the shell; the structural adhesive is used for fixing the first battery and the second battery on the box body; moreover, among the respective second batteries of the battery array, the second battery having the largest number m of adjacent second batteries satisfies the following relational expression (1): # imgabs0 #

The invention relates to the technical field of plate shell structures, in particular to a plate shell curve reinforced structure design method and a plate shell curve reinforced structure. According to the method, based on given design parameters, an implicit curved surface and a cross section of the curve reinforced structure are selected, then section parameters of the curve reinforced structure are optimized through layout optimization of the curve reinforced structure and establishment of an agent model, and finally the optimal curve reinforced structure design is obtained. The implicit curved surface in the method can be given by any general curved surface form, and has great degree of freedom. The application agent model is high in calculation efficiency and can explicitly process constraints, and the calculation amount is reduced. According to the design method, the E-AMS method is combined, high-precision reduction of the implicit curve can be achieved while explicit is achieved, and accurate modeling of the curve reinforcement structure is achieved. The plate shell curve reinforced structure provided by the invention is obtained by adopting the plate shell curve reinforced structure design method, the design cost is lower, the efficiency is higher, and the structure has better anti-buckling bearing capacity and bearing characteristic.

The invention relates to an aircraft concept scheme design method and system based on generative artificial intelligence. The method comprises the following steps: selecting a large language model as a system basic model; constructing an aircraft collaborative design cloud platform; driving the large language model to generate a design scheme in a local calling mode, wherein the design scheme comprises model type selection and cue word selection; weight, pneumatic, performance and modeling professional analysis tools are packaged into a capability unit of a design system, and related modeling, evaluation and verification links comprise appearance, power, pneumatic, weight, RCS and flight performance parts and are deployed and operated in a distributed mode. On the basis of a design project in a collaborative design cloud platform, an aircraft CATIA model, overall parameters, aerodynamic parameters, weight parameters and performance data formed by a design scheme are extracted, and elements therein are displayed. According to the system, the aircraft design efficiency is remarkably improved, and the design cost is reduced.

The invention relates to an electronic picture book generation method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a basic keyword set, and enabling each basic keyword in the basic keyword set to be related to a picture book story text; traversing basic keywords in the basic keyword set, determining key texts corresponding to the basic keywords, and forming a key text set by the key texts; and generating a picture book story text of the electronic picture book according to the key text set, and generating a picture book illustration of the electronic picture book according to the picture book story text. In this way, the basic keyword set related to the picture book story is given, the picture book story text of the electronic picture book is generated, then the picture book illustration of the electronic picture book is generated, work of a picture book author and an illustrator can be replaced, the design difficulty of the electronic picture book is reduced, time and money input is reduced, and the design cost of the electronic picture book is reduced.

The invention discloses rotary press-fitting equipment for a rotor workpiece, and relates to the technical field of rotor assembly. The device comprises a pressing machine and an air cylinder, a lifting sliding table is installed at the output end of the pressing machine, a fixing cylinder is fixedly connected to the lifting sliding table, a rotary driving assembly is installed above the fixing cylinder, the output end of the rotary driving assembly is fixedly connected with a mounting base, and a fixing assembly is detachably installed at the bottom end of the mounting base; and the fixing assembly is detachably connected with the rotor workpiece. Through mutual cooperation of the fixing assembly, the rotation driving assembly and other structures, rotation adjustment can be automatically conducted on a rotor workpiece according to needs in the press-fitting process, the press-fitting precision of the rotor workpiece and a shell workpiece is guaranteed, in addition, the rotating and press-fitting integrated assembly mode is adopted, the installation space is reduced, and the assembly efficiency is improved. And the design cost of equipment for carrying out displacement press-fitting on the workpiece is reduced.

The invention relates to the technical field of material forming, in particular to a flexible leather injection molding method, a mold and an injection molding part. The flexible leather injection molding method comprises the steps that flexible leather is put into an injection mold, and the mold is closed; the flexible leather is attached and fixed to a front mold body of the injection mold through negative pressure; injection molding raw materials are injected into a cavity of the injection mold, so that the injection molding raw materials are combined with the flexible leather; and opening the film after the plastic is cooled and cured. According to the method, the fitting process and the injection molding process of the flexible leather are combined, the flexible leather is placed in the injection mold in advance, the flexible leather is precisely attached to the surface of the mold through the negative pressure technology, then the injection molding raw material in the hot melting state is directly injected, and integrated forming of the flexible leather and the injection molding raw material is achieved; the manufacturing requirements of products with complex designs such as grooves, craters and button positions can be better met, the attaching technology after injection molding of a traditional technology is completed is omitted, and the design cost and the overall product cost are reduced.

The invention discloses a fusion type optical fiber distributed multi-point disturbance detection demodulation system and a multi-point fault positioning method. The fusion type optical fiber distributed multi-point disturbance detection demodulation system comprises two light sources, a one-way Mach-Zehnder optical fiber interferometer, a phase-sensitive optical time domain reflectometer and a data acquisition and processing module, when a plurality of abnormal vibration events act on the sensing optical fiber at the same time, a continuous laser signal emitted by the first laser enters the one-way Mach-Zehnder interferometer, and a photoelectric detector receives a continuous interference sensing optical signal in real time; a continuous laser signal emitted by the second laser is converted into a periodic pulse optical signal, the periodic pulse optical signal enters the phase-sensitive optical time domain reflectometer and the one-way Mach-Zehnder interferometer, and the pulse optical signal is received in real time by the photoelectric detector; the data acquisition and processing module adopts an improved phase generation carrier phase demodulation scheme to demodulate the phase change of a vibration signal applied to the sensing optical fiber so as to calculate amplitude-frequency information; and the obtained backward Rayleigh scattering light signals are utilized to calculate and demodulate position information of a plurality of fault events.

The utility model provides a compensation device based on a magnetic suspension motor and an eddy current displacement sensor, which belongs to the technical field of magnetic suspension motor unbalanced signal extraction and suppression and comprises a differential eddy current displacement sensor, a nonlinear compensation circuit, a digital signal processor, an eddy current effect compensation circuit and an upper computer. The differential eddy current displacement sensor is used for acquiring displacement information and rotor temperature of a rotor of the magnetic suspension motor, and temperature compensation is carried out on the displacement information of the rotor by adopting a temperature compensation circuit built in the differential eddy current displacement sensor according to a temperature compensation control signal of the upper computer; and the upper computer is used for correspondingly obtaining a resistance value of a variable resistor Rt in the temperature compensation circuit according to the rotor temperature and the environment temperature when receiving the rotor temperature, and sending a temperature compensation control signal to the differential eddy current displacement sensor according to the resistance value of the variable resistor Rt. According to the invention, the accuracy of signal acquisition under complex conditions is ensured.

The invention relates to the technical field of tooling, particularly provides a design method of a stamping tooling, the stamping tooling, equipment and a storage medium, and aims at solving the problems that an existing design method of the stamping tooling is long in period and low in efficiency. To this end, the stamping tooling of the present invention comprises: a main rod assembly comprising at least two main rods and a connecting plate for fixing the main rods; one end of the supporting rod is connected with the main rod through a main connector, and the other end is connected with the sucker through an adapter. The design method comprises the following steps of determining a main reference coordinate system of the stamping tooling and a first reference point of a suction cup based on data of a stamping part; establishing a main rod assembly model based on the main reference coordinate system; planning a strut path of the strut based on the first reference point and the main rod assembly model; and based on the supporting rod path, a supporting rod model is established, a suction cup model is established based on the first datum point, and assembling of the stamping tooling is completed. According to the design method, the design period is shortened, and the standardization degree of the design is improved.

The invention relates to the technical field of energy storage converter fault detection, in particular to a fault detection circuit and method for an AC grid-connected relay of an energy storage converter. A primary relay is removed, a group of detection relay loop is added on the side of an alternating current grid-connected relay and a converter, and the detection relay loop is composed of a detection relay and a detection loop resistor. In the fault detection link of the alternating-current grid-connected relay, the voltage of the detection relay loop is judged by sequentially closing the detection relays of the detection relay loop, so that the short-circuit detection of the alternating-current grid-connected relay is realized. And then the detection relay loop is disconnected, the AC grid-connected relays are sequentially closed, and the voltage of the detection relay loop is judged, so that open circuit detection of the AC grid-connected relays is realized. The added detection relay loop is simple in structure and small in occupied space, the design cost of the alternating current grid-connected relay can be effectively reduced, and the overall structure utilization rate and the power density of the energy storage converter are improved.

The present invention discloses a pneumatic sample transport device based on deceleration and positioning, the device consists of a positioning component and a deceleration component; the positioning component comprises a U-shaped rabbit pipe with an opening downward and one end as a starting end and the other end as a destination end, and a sample transport device arranged in the U-shaped rabbit pipe and transporting target materials from one end to the other end; the U-shaped rabbit pipe and the sample transport device are respectively provided with magnets that attract each other, the deceleration component comprises a ventilation component arranged at the starting end of the U-shaped rabbit pipe, a deceleration component arranged at the destination end of the U-shaped rabbit pipe, and a plurality of sensor components arranged in the bend of the U-shaped rabbit pipe. The present invention decelerates the sample transport device through a control system and positions the sample transport device through the principle of magnetic attraction, thereby avoiding damage to the sample transport device and the contained sample due to severe impact, and improving automation and reducing the difficulty of manipulator design through automatic positioning of the sample transport device.

The invention relates to the technical field of car lamps, and provides a car lamp thick-wall part which comprises a lens, a light guide plate and a light guide plate. At least one side, facing the lens, of the substrate is designed to be a plane; the LED lamp beads are located on the side, facing the lens, of the substrate, and the LED lamp beads are electrically connected with the substrate; the LED lamp bead can move relative to the lens and can be aligned with the light inlet through displacement, so that light rays of the LED lamp bead enter the light inlet in a concentrated mode and are emitted outwards from the other side of the lens. The positions of the LED lamp beads can be adjusted, so that the LED lamp beads can generate displacement, the LED lamp beads are aligned to the light inlet through displacement, light rays are emitted into the lens from the light inlet in a concentrated mode, on the basis of plane design of the substrate, the needed optical performance is achieved, and the material cost and the design cost of the thick-wall part of the automobile lamp are reduced.

The invention provides a switch state detection circuit and a power supply system, the power supply system comprises a power supply end, a load end and a to-be-detected switch arranged between the power supply end and the load end, and the to-be-detected switch is used for connecting / disconnecting a path between the power supply end and the load end. The switch state detection circuit comprises an isolation power supply, a voltage detection circuit and a voltage feedback circuit. The isolation power supply and the to-be-tested switch form a current loop when the to-be-tested switch is closed so as to provide voltage isolated from the power supply end for the to-be-tested switch. The voltage detection circuit outputs a voltage detection signal according to the voltage output by the isolation power supply; the voltage feedback circuit outputs a voltage feedback signal according to the level state of the voltage detection signal. According to the invention, a high-cost auxiliary switch is replaced by a low-cost voltage detection circuit and a low-cost voltage feedback circuit, and the detection of the switch state is realized through the software and hardware combination of the voltage detection circuit and the voltage feedback circuit, so that the space of a circuit board is saved, and the circuit design cost is reduced.

The invention relates to the field of flow control, in particular to an integrated full-scale high-precision flow controller and a flow measurement and control method. The integrated full-range high-precision flow controller comprises a fluid conveying flow path, a control valve and a main control chip, the fluid conveying flow path is provided with at least two flow measuring parts which are different in measuring range and connected in parallel, and each flow measuring part comprises a sensor and a flow resistance structure which are used in cooperation. A measuring part switching assembly is arranged at an inlet of the branch flow path where each flow measuring part is located; the control valve is installed on the fluid conveying flow path and connected with the measuring part switching assembly in series. The main control chip is connected with the flow measuring part, the measuring part switching assembly and the control valve. The flow can be accurately measured, so that the flow is accurately controlled, the requirement of customers for high precision of small-flow process gas is met, full-scale high-precision flow control is met, the integration degree is high, and the structure is compact.

The invention discloses a transient enhancement circuit applied to a COT mode buck converter in the technical field of integrated circuits, and the transient enhancement circuit comprises an output voltage sampling circuit and a fully differential transconductance amplifier GM. The input end of the output voltage sampling circuit is connected with the output end of the COT mode buck converter; the output voltage sampling circuit is used for sampling an output voltage signal of the COT mode buck converter and sending the sampled voltage signal to the input end of the fully differential transconductance amplifier GM. According to the invention, the transient enhancement circuit applied to the COT mode buck converter is introduced, so that the effective improvement on the up-down rush and the recovery time in the load switching process of the buck converter is realized, and the system is continuous and the system response is optimized by dynamically changing the conduction time.

The invention relates to the technical field of data processing, and discloses a limit scooter structure design management method and system and a limit scooter. The method comprises the following steps: performing intelligent acquisition and preprocessing on multi-source heterogeneous data to obtain a multi-dimensional comprehensive data set; performing multi-level index construction and nonlinear calculation on the multi-dimensional comprehensive data set to obtain a limit scooter structure design quantitative index system; performing spatio-temporal multi-scale feature analysis on the limit scooter structure design quantitative index system to obtain a spatio-temporal distribution feature map; performing high-order correlation analysis on the spatial-temporal distribution characteristic spectrum to obtain a multi-dimensional correlation intensity distribution matrix among frame geometric parameters, wheel set configuration and a damping system, performing key factor identification and sensitivity analysis to obtain an influence factor importance ranking table, and performing parameterized structure design scheme optimization; and obtaining a multi-target structure design scheme combination and a performance evaluation index set. According to the invention, the efficiency and accuracy of limit scooter structure design management are improved.

The invention relates to a test system and a test method. The test system comprises at least two output data source modules; the multiplexing selection module is connected with each output data source module and is used for switching and outputting a test pattern corresponding to the output data source module; the waveform synthesis module is connected with the multiplexing selection module and is used for performing waveform format synthesis on the test pattern output by the multiplexing selection module according to the configured waveform format and outputting a synthesized waveform; the time sequence generation module is connected with the waveform synthesis module and is used for carrying out delay processing on the synthesized waveform output by the waveform synthesis module and generating an output waveform; and the pin circuit module is connected with the time sequence generation module and the to-be-tested device, and is used for receiving the output waveform generated by the time sequence generation module and outputting an excitation signal to the to-be-tested device. The output waveform is obtained by adopting a processing mode of firstly performing waveform synthesis and then performing time sequence generation, the delay compensation error is reduced, a waveform output function can be realized by adopting a universal chip, and the design cost is reduced.

The invention discloses an overvoltage protection circuit of a switching power supply and the switching power supply, the switching power supply comprises a main power tube and a freewheeling tube, and the main power tube enables the switching power supply to provide an output voltage for a load according to an input voltage through periodic connection and disconnection. The overvoltage protection circuit comprises a sampling and holding unit for sampling an input voltage within a follow current time of a follow current tube and then holding a sampled signal to obtain a sampling and holding signal; and the overvoltage control unit is used for performing overvoltage protection on the switching power supply according to the duty ratio, the sampling holding signal and the characterization voltage of the overvoltage protection threshold. The overvoltage protection circuit provided by the invention samples the input voltage during the follow current period, so that the information of the output voltage is obtained according to the sampled input voltage and the duty ratio, overvoltage protection is carried out when overvoltage is output, and the overvoltage protection circuit is applicable to the specific situation that the main power tube in the switching power supply is connected with the input voltage or the reference ground, and is wide in adaptability and low in cost.

The invention discloses a reconfigurable metasurface reflective array based on MOS switch chip regulation and control and an implementation method of the reconfigurable metasurface reflective array. The metasurface reflective array comprises a feed source horn and a reconfigurable metasurface reflective array, the reconfigurable metasurface reflective array comprises a plurality of metasurface reflective array units which are periodically arranged; the metasurface reflective array unit sequentially comprises a top metal structure layer, a first dielectric substrate, a metal ground, a metal power supply layer, a second dielectric substrate and a bottom metal feed layer; and the top metal structure is loaded with an MOS switch chip. According to the invention, two states of 0 degree and 180 degrees of the phase of the metasurface reflective array unit are realized by controlling the on-off of the MOS switch chip, the state of each metasurface reflective array unit in the reflective array is controlled by the FPGA, beam scanning can be carried out at + / -45 degrees, and compared with a reflective array using a PIN tube as a tuning element, the design of a complex feed network is avoided, and the cost is reduced. The method has the advantages of high beam scanning speed and low power consumption.

The invention relates to the field of internal combustion engines, and provides a hydrogen ejector and an internal combustion engine combustion system. The lengthened spraying pipe is arranged at the end, close to the first hydrogen spraying opening, of the hydrogen spraying device body, extends in the axial direction of the hydrogen spraying device body and is provided with a second hydrogen spraying opening; the heat insulation pin is arranged in the lengthened spraying pipe and located between the first hydrogen spraying opening and the second hydrogen spraying opening, the heat insulation pin is provided with a through hole formed in the axial direction of the heat insulation pin, one end of the through hole communicates with the first hydrogen spraying opening, and the other end of the through hole communicates with the second hydrogen spraying opening. In this way, an existing hydrogen ejector can be improved, and the manufacturing and design cost is greatly reduced. Meanwhile, the lengthened spraying pipe is utilized, the spraying opening of the hydrogen ejector body can be far away from a high-temperature and high-pressure area, the thermal load problem and the installation problem of the hydrogen ejector are effectively solved, the service life of the hydrogen ejector is prolonged, and efficient, reliable and stable operation of an engine can be achieved easily.

The invention discloses a vehicle frame lateral bending multi-parameter joint optimization method, system and device and a storage medium, and relates to the technical field of vehicle frame design and optimizing.The method comprises the steps that vehicle frame actual measurement related data are collected, and a vehicle frame dynamic model is built based on simulation software according to the collected vehicle frame actual measurement related data; initial setting is carried out on bushing preload and cross beam tolerance parameters in the vehicle frame dynamic model, and the bushing preload is adjusted, so that the lateral bending condition of the vehicle frame dynamic model is consistent with the actual measurement condition; performing static balance simulation analysis on the frame dynamic model under different cross beam tolerance combinations in combination with the adjusted bushing preload; and according to simulation results under different cross beam tolerance combinations, selecting a cross beam tolerance combination meeting set requirements. According to the method, the accuracy of frame lateral bending optimization can be effectively improved.

The invention relates to an electric heating clothes heat transfer simulation method and device and a medium, and the method comprises the steps: building an electric heating dressing heat transfer model and an electric heating fabric system heat transfer model of the electric heating clothes; establishing a combined application method of the two models; performing a verification experiment on the combined application method of the two models to obtain an electric heating dressing heat transfer model, an electric heating fabric system heat transfer model and the combined application method which pass the verification experiment; based on the two models passing the verification experiment and in combination with an application method, establishing a temperature prediction model for guiding the temperature setting of the heating part of the electric heating dressing heat transfer model; or changing the parameters of the heating sheet in the electric heating dressing heat transfer model passing the verification experiment to carry out the simulation experiment, and establishing a skin temperature prediction model for guiding the design of the electric heating clothes. According to the invention, an application method combining the electric heating fabric system model and the electric heating clothes dressing model is constructed, so that the simulation result of the electric heating clothes is more real.

The invention discloses a memristor circuit-based implication logic synthesis and optimization method, which comprises the following steps of: acquiring a gate-level netlist for representing a Boolean function by using an ABC and a simulated annealing algorithm based on a node sensing cost function, and converting a circuit topology connection relationship in the gate-level netlist into an IMG; calculating the optimal IIG of all the four-input NPN Boolean functions by using an SAT-based precise synthesis algorithm and NPN equivalent classification, establishing an IMG off-line database by using IMG logic to represent an inverter in the IIG, and converting an input circuit into an IMG structure by using a logic rewriting algorithm and the IMG off-line database; based on a heuristic algorithm of logic reconstruction, all structures with a fan-out problem in an IMG structure are solved, and an implication network without the fan-out problem and with the number of memristors and the number of pulses reduced is obtained. According to the method, the number of operation pulses in the memristor circuit is reduced, the number of memristors is reduced, and the design cost is reduced.

The invention provides a ground insulation resistance detection circuit, a detection method and a product, which are applied to a detection scene of ground insulation resistance of a direct current side of a non-isolated high-voltage energy storage converter. According to the ground insulation impedance detection circuit provided by the embodiment of the invention, a complex isolation circuit in an isolation type scheme is not needed, an additional bridge arm resistor in a non-isolation type scheme is also avoided, the detection circuit is constructed through a small number of resistors, switches and voltage acquisition modules, the number of devices and the occupation of PCB space are reduced, the design and manufacturing cost can be effectively reduced, and the detection circuit is suitable for large-scale popularization and application. And the compact layout requirement of the non-isolated high-voltage energy storage converter is met. On the basis, the embodiment of the invention further provides a ground insulation impedance detection method, the voltage acquisition module stably collects the first voltage and the second voltage through on-off of the switch, whether the risk of insulation failure exists or not is judged, the situation of sampling signal distortion in a non-isolation scheme can be reduced, and the detection precision is effectively improved.

The invention provides a semi-automatic laminating device for LCM (Liquid Crystal Module) screen edge-covering glue, which comprises a shell, a laminating assembly and a power mechanism are connected in the shell, and the laminating assembly and the power mechanism are connected with each other; the power mechanism comprises a main shaft connected to the interior of the shell body, and the outer surface of a shaft body of the main shaft is sequentially connected with a cylindrical surface guide wheel and a guide cam; the attaching assembly comprises a cylindrical surface guide wheel push rod in sliding connection with a guide groove in the outer surface of the cylindrical surface guide wheel and a guide cam push rod in sliding connection with a guide groove in the outer surface of the guide cam, and the top end of a rod body of the cylindrical surface guide wheel push rod and the top end of a rod body of the guide cam push rod are both connected with a transmission block. According to the invention, two cams are used for guiding, so that the action of binding adhesive bonding is completed, and the design cost of automation is reduced.

The invention discloses a preparation method of a multi-channel chabazite molecular sieve membrane. The high-performance chabazite molecular sieve membrane is prepared on a multi-channel carrier. The method comprises the following steps: (1) preparing a seed crystal; (2) coating a seed crystal layer on the multi-channel carrier; and (3) synthesizing the chabazite molecular sieve membrane by adopting a secondary growth method. By virtue of a multi-channel structure and specific pore channel characteristics, the prepared multi-channel chabazite molecular sieve membrane has high selectivity and can be used for accurately separating molecules with different sizes and properties. Meanwhile, rich transmission paths enable the membrane to have high flux, the permeation rate of substances is greatly improved, and compared with a single-channel molecular sieve membrane, the treatment capacity is remarkably improved.

The invention provides a load balancing method of an X-ray tube and a load-balanced X-ray system.The load balancing method of the X-ray tube comprises the steps that cathode high voltage and anode high voltage which are related in polarity are provided for the X-ray tube, and a winding of a first transformer and a winding of a second transformer of a high-voltage generator are adjusted based on a target voltage difference value to be output; therefore, the difference value between the leakage inductance of the first transformer and the leakage inductance of the second transformer is changed to reach a target leakage inductance difference value, and the adjusted leakage inductance of the first transformer and the adjusted leakage inductance of the second transformer carry out corresponding voltage division on an anode high-voltage output loop and a cathode high-voltage output loop respectively. Therefore, the voltage difference value of the target anode high voltage and the target cathode high voltage of the adjusted X-ray tube reaches the target voltage difference value, the purpose of balancing the output voltage is achieved, an additional inverter circuit structure does not need to be added, the structures of the high voltage generator and the X-ray system are simplified, the design cost is reduced, and the method is suitable for large-scale popularization and application. And the system reliability is improved.