51results about How to "Improved thermal management" patented technology

The invention belongs to the technical field of battery thermal management, and discloses a battery pack and a phase change material coupling liquid cooling composite thermal management system.The battery pack comprises a plurality of battery structures, each battery structure comprises a lithium battery, a fin structure, a phase change material filling area and a liquid cooling plate, and the fin structure is arranged on the periphery of the lithium battery; the liquid cooling plate is arranged on the periphery of the fin structure, a phase-change material filling area is formed between the liquid cooling plate and the fin structure, and the phase-change material filling area is filled with a phase-change material for absorbing redundant heat and generating phase change, so that the temperature fluctuation of the battery is reduced. The lithium bromide heat pump and the direct-current power supply are combined, and accurate adjustment of the temperature of the battery pack is achieved through efficient heat exchange and intelligent control. The system can be rapidly switched between a cooling mode and a heating mode, and it is ensured that the battery is always kept within the optimal temperature range in different working environments.

The invention belongs to the technical field of power battery cooling, and particularly relates to a flow control method and system for a liquid cooling system of an electric vehicle-mounted power battery, and the method comprises the steps: carrying out the parameterization of a geometric model of the liquid cooling system; establishing an equipment resistance model based on the equipment flow resistance characteristics; initializing flow distribution, constructing a dynamic flow distribution model, calculating the flow of each node and judging whether the flow meets a target requirement or not, and if not, readjusting the flow; calculating the resistance of each section, determining the total resistance of the pipeline, and checking the water pump lift; the flow uniformity is judged by calculating the pipeline resistance between the nodes, and if the flow is not uniform, the flow is redistributed or the pipeline design is optimized until the flow is uniform. Through flow control, the problems of non-uniform flow distribution and poor temperature consistency of multiple battery packs in the prior art are solved, the optimal working state of the power battery is ensured, overheating and overlarge temperature difference are avoided, and the operation efficiency, stability, durability and safety are improved.

The invention discloses an overcharge control method and system for an electric vehicle, and relates to the technical field of overcharge control, and the method can accurately predict and evaluate the temperature change of a battery by collecting battery data in real time in the overcharge process and combining a normalized data set and a charging feature vector set. Particularly, by constructing a heat and temperature algorithm model, the system can predict the change trend of the battery temperature in the overcharge process. And when the predicted temperature value Tb exceeds the temperature threshold T, the system can immediately trigger an adaptive charging power and cooling system cooperation mechanism, and automatically adjust the overcharge power Pya and the cooling power Pcool. Through the mechanism, when the battery temperature is close to the safety upper limit, the overheating risk can be effectively avoided, and the safety of the charging process is ensured. According to the measure, the accuracy of battery temperature management is remarkably improved, the risk of battery damage caused by abnormal temperature is reduced, and the service life of the battery is prolonged.

The utility model discloses a laser collimation module capable of expanding beams for multiple times. The laser collimation module comprises a laser collimation module body arranged on one side of a galvanometer adapter plate, a beam expanding structure arranged at one end of the laser collimation module body and a heat sink structure arranged outside the laser collimation module body. The horizontal projection cylinder is arranged between the fixed seat and the galvanometer adapter plate, the laser collimation cylinder is arranged on one side of the fixed seat, the fixed plate is arranged in the fixed seat, and the reflector is arranged in the fixed plate; the first lens barrel is arranged outside the laser collimation barrel, the second lens barrel is connected with the first lens barrel, and the third lens barrel is connected with the second lens barrel; a first glass lens is arranged in the first lens cone, a second glass lens is arranged in the second lens cone, and a third quartz lens is arranged in the third lens cone; the plurality of integrated assemblies are arranged outside the laser alignment module, and the plurality of heat sink assemblies are arranged inside the integrated assemblies. According to the utility model, the laser beam can be effectively expanded by multiple times, and the requirements of different application scenes on the size of the laser beam can be met.

The embodiment of the invention provides a low-noise hundred-ampere-level current source which can be applied to the technical field of current sources. The current source comprises a loop compensation module, a voltage driving circuit and a current detection feedback module which are sequentially connected in series, the current source further comprises an energy storage module which is connected with the voltage driving circuit and the current detection feedback module in parallel, and the energy storage module is used for providing electric energy for a load coil; the loop compensation module is used for performing compensation operation on the accessed analog control signal and the voltage feedback signal and outputting a compensation signal; the voltage driving circuit is used for obtaining electric energy from the energy storage module through the load coil based on the compensation signal output by the loop compensation module so as to provide output current for the current detection feedback module; and the current detection feedback module is used for sampling the output current, converting the output current into a voltage feedback signal and outputting the voltage feedback signal to the loop compensation module to form a feedback loop so as to adjust the output current.

The invention relates to an LED epitaxial wafer, a growth method of a graphene layer and an LED chip, and belongs to the technical field of LEDs. The LED epitaxial wafer comprises a substrate, and a graphene layer, a buffer layer, an undoped GaN layer, an n-type GaN layer, a stress release layer, a multi-quantum well layer, an electron barrier layer and a p-type GaN layer which are sequentially epitaxially grown on the substrate, wherein the thickness of the single graphene layer is 0.5-1.5 nm, and the number of the graphene layers is at least two. According to the LED epitaxial wafer provided by the invention, the defect density in the GaN template layer is reduced through deposition of the graphene interlayer. Therefore, the recombination efficiency of electrons and holes is improved, so that the luminous efficiency of the LED is enhanced. Due to the existence of the graphene layer, the compressive strain of the chip is reduced, the influence of a polarization field is reduced, and the emission wavelength of electroluminescence (EL) is more stable.

The invention discloses a flat pipe, a heat exchanger, a vehicle heat management system and a vehicle, and belongs to the technical field of vehicle heat management. The flat pipe forms a first flow channel and a second flow channel which are separated and arranged side by side, the first flow channel is suitable for circulation of a first heat exchange medium, and the second flow channel is suitable for circulation of a second heat exchange medium. Through the partition integrated design of the first flow channel and the second flow channel, the overall structure of the flat pipe is simplified, the overall heat resistance is reduced, and the heat exchange efficiency is greatly improved, so that the heat management effect of the vehicle heat management system is optimized, meanwhile, the machining difficulty and machining cost of the flat pipe are reduced, and the production efficiency is improved. Therefore, large-scale production and popularization and application are facilitated.

This invention discloses a dual-component thrust attitude control engine, comprising a mounting plate, a swirling mixer, an igniter, and a combustion chamber nozzle. The mounting plate contains two isolated gas chambers, each with an intake pipe connected to its inlet and an on / off controllable solenoid valve at its outlet. The two inlets of the swirling mixture are connected to the outlets of the two gas chambers, and the outlet of the swirling mixer is connected to the inlet of the combustion chamber nozzle. The swirling mixer is used to swirl and mix the gas input into it before outputting it. The igniter is used to ignite the mixed gas input into the combustion chamber nozzle. The combustion chamber nozzle is used to supply the combusted mixed gas for combustion output. This configuration solves the problem that existing technologies cannot simultaneously achieve compact structure, high mixing efficiency, and excellent thermal management performance.

The invention relates to the technical field of thermal insulation materials, and particularly discloses a building external wall thermal insulation material and a preparation method thereof. The invention relates to a building external wall thermal insulation material, which is prepared from the following ingredients in parts by weight: 50 to 80 parts of cement, 25 to 35 parts of polyacrylate emulsion, 15 to 25 parts of expanded perlite, 0.2 to 0.5 part of water reducing agents, 5 to 8 parts of foaming agents, 5 to 10 parts of nanometer aluminum oxide crystal whiskers, 5 to 10 parts of hollow glass microspheres, 7 to 16 parts of potassium hexatitanate crystal whiskers, 3 to 7 parts of sodium alginate-silicon dioxide aerogel and 2 to 10 parts of wood fibers. And 8-14 parts of water. The preparation method of the building external wall thermal insulation material comprises the following steps: uniformly mixing the raw materials in parts by weight, injecting the mixture into a mold for forming, removing the mold after initial setting, maintaining, and cutting into building blocks or plates according to design size requirements after reaching certain strength. The building external wall thermal insulation material is good in thermal insulation performance.

The application belongs to the technical field of batteries, and specifically discloses a liquid cooling device, which is characterized in that an installation position is arranged on the shell of the liquid cooling device, an electric core is arranged in the installation position, the inside of the shell is hollow to form a cooling chamber, and a cooling medium flows through the cooling chamber; the cooling chamber can wrap the side surface and the bottom surface of the electric core, thereby increasing the contact area between the cooling chamber and the electric core and achieving a good cooling effect. The application further provides a battery module comprising the liquid cooling device, and the liquid cooling device can achieve a good cooling effect on the electric core and has a good thermal management effect.

This invention discloses an all-solid-state white laser, belonging to the field of laser technology. The laser includes a pump source for generating pump light and a composite laser gain medium for receiving the pump light. The composite laser gain medium is composed of several laser crystals with a stepped distribution of pump light absorption coefficients and several nonlinear optical crystals arranged in a cross-bonded configuration. A first laser resonator, a second laser resonator, and a third laser resonator are formed by coating the laser crystals and nonlinear optical crystals respectively, enabling them to generate lasers of different wavelengths in the same direction under the action of focused pump light. The first laser output from the first laser resonator, the second laser output from the second laser resonator, and the third laser output from the third laser resonator are mixed in the same direction to generate white light, which is then output. This invention effectively improves the thermal effect inside the gain medium through relatively independent resonators, which is beneficial for obtaining high-quality, high-power white light output.

This invention provides a modular range extender for an electric vertical takeoff and landing fixed-wing unmanned aerial vehicle (UAV) and the UAV itself, belonging to the field of UAVs. This invention integrates the power unit, heat dissipation unit, fuel tank, and exhaust unit into a basic frame; disassembly and assembly are achieved simply by removing the connecting parts between the basic frame and the fuselage. The high degree of structural integration facilitates maintenance, optimizes the overall center of gravity, and promotes the serialization and rapid iteration of UAV products. The heat generated by the power unit can be uniformly dissipated through the heat dissipation unit, facilitating thermal management and preventing localized heat accumulation. Furthermore, several elastic suspension systems are provided on one side of the basic frame for connection to the UAV fuselage. Vibrations generated by the power unit can be absorbed by these elastic suspension systems, achieving centralized vibration reduction and improving vibration reduction reliability.

The invention relates to the technical field of two types of engineering equipment, and particularly discloses an accelerator detection system based on CAN (Controller Area Network) informatization, which is used for solving the problem that an engine is damaged due to the fact that the accelerator upper limit output by a foot accelerator of the existing two types of engineering equipment does not consider load, heat management and task requirements, and comprises a hand accelerator and the foot accelerator, a pedal is arranged in the foot accelerator, an ejector rod is connected with the pedal, the ejector rod is connected with a clamping block, the clamping block is connected with an accelerator detection mechanism, a magnetic sensitive angle sensor is arranged in the accelerator detection mechanism, the magnetic sensitive angle sensor is connected with a data preprocessing module, the data preprocessing module is further connected with a characteristic data acquisition module, and the data preprocessing module is connected with an engine electric control unit. The engine electric control unit is connected with the engine, and the engine is connected with the foot accelerator through the foot accelerator regulation and control module; the actual accelerator upper limit output by the foot accelerator is dynamically adjusted by combining the load, heat management and task working conditions, and the risk of engine damage is reduced.

The invention discloses a modular mobile workshop for mite culture, and relates to the technical field of mite culture engineering.The modular mobile workshop comprises a modular mobile workshop unit, the modular mobile workshop unit comprises a workshop body, and wall plates of the workshop body are constructed through heat preservation plates; the environment regulation and control unit is connected with the modularized mobile workshop unit; the high-precision environment regulation and control unit at least comprises an air conditioning system for regulating the temperature in the workshop; according to the modularized mobile workshop for cultivating mites, the temperature and humidity regulation and control fresh air handling unit and the air conditioning system are cooperatively arranged, and air supply pipelines, exhaust pipes and exhaust pipes of the temperature and humidity regulation and control fresh air handling unit and the air conditioning system are gathered in the integrated control unit in a crossed arrangement mode, so that source forced mixing and uniform distribution of temperature and humidity regulation airflow are achieved; therefore, a highly-stable and uniform temperature and humidity field is constructed in the workshop main body, an accurate and controllable optimal growth environment is provided for amblyseius steseii, and the unit culture density and population development synchronism are remarkably improved.

The invention provides a method for evaluating and analyzing the uniformity of a flow channel of a liquid cooling plate. The method comprises the following steps: collecting flow data and temperature data of the liquid cooling plate; preprocessing the flow data and the temperature data to obtain analysis data; decomposing the analysis data into dynamic modes according to a preset dynamic mode decomposition (DMD) algorithm; and evaluating the runner uniformity of the liquid cooling plate according to the dynamic mode.

The application provides a combined PCM magnetic lens heat storage and damping system and application, and comprises the following steps: determining a temperature variation interval of a working state of a magnetic lens heat source; selecting different phase change temperature PCMs as first PCMs, second PCMs and third PCMs according to the temperature variation interval; melting the PCMs into a molten state respectively, and embedding the magnetic lens heat source in the PCMs with the phase change temperature changing from high to low in the radial direction through the mode of immersion and solidification of the magnetic lens heat source in sequence; adjusting the volume ratio between the combined PCMs by evaluating the change of the working temperature of the magnetic lens before and after the action of the combined PCMs; the system introduces a phase change heat transfer mechanism into the structure of the magnetic lens, provides a uniform and temperature-controllable heat dissipation effect for the magnetic lens, and enhances the thermal stability and mechanical stability of the magnetic lens in the mode of filling with multiple layers of PCMs.

The invention discloses a microcapsule intelligent response type super-hydrophobic anti-frosting coating as well as a preparation method and application thereof. According to the preparation method, the anti-freezing agent is encapsulated in the microcapsule with specific responsiveness and is dispersed in the super-hydrophobic coating system, so that the defects that the anti-freezing agent is easy to lose and low in utilization rate are overcome. When the surface of a coating prepared from the coating is frosted to generate mechanical stress or the environment temperature reaches a specific threshold value, the microcapsules are broken, and the antifreeze agent is released at the root of ice crystals at a fixed point, so that on-demand supply is realized, and the effective frost prevention service life of the coating is greatly prolonged. The microcapsule intelligent response type super-hydrophobic anti-frosting coating has wide application prospects in air conditioner heat exchanger fins, refrigerator evaporators, wind driven generator blades, aircraft wings, unmanned aerial vehicle propellers, solar photovoltaic panels, outdoor sensor shells or electric power insulators.

The present invention provides a thermal management assembly of an electric vehicle and an electric vehicle, and relates to the field of vehicle technology. The thermal management assembly of the electric vehicle includes multiple subsystems, including an electric drive thermal management system, a battery thermal management system, and an air conditioning thermal management system, and also includes: an auxiliary water tank for storing and providing a heat exchange medium; a water system including multiple multi-way valves, connecting the heat exchange medium to form a cooling circuit through the electric drive thermal management system, the battery thermal management system, and the air conditioning thermal management system; a pump system including multiple pumps connected to the water system for conveying the heat exchange medium; a controller configured to: receive application scenario instructions and vehicle temperature status; and control the working status of the subsystem and the guidance of the heat exchange medium according to the application scenario instructions and / or the vehicle temperature status. It can realize power consumption and improve vehicle driving range.

The invention relates to a display module and a display device. The display module comprises a display panel, a backlight module and a dimming layer. The display panel comprises a first substrate and a second substrate which are oppositely arranged, and a liquid crystal layer arranged between the first substrate and the second substrate; the backlight module is arranged on the side, away from the second substrate, of the first substrate. The dimming layer is arranged on the side, facing the display panel, of the backlight module, the dimming layer comprises a first lens film used for receiving light, and the direction from the backlight module to the display panel is configured to be the light receiving direction of the first lens film; the display panel further comprises a second lens film used for receiving light, the second lens film is located between the first substrate and the second substrate, and the direction from the first substrate to the second substrate is configured to be the light receiving direction of the second lens film.

A kind of charging device for sharing massage device storage device, including outer casing, the storage box for carrying waistband type massager is retractably arranged in outer casing, the power of battery is guaranteed by external socket, the bottom of storage box is fixedly provided with support plate, support plate is formed with the load groove for placing waistband type massager at the center of storage box, the charging port for charging wire to go out is opened in the bottom center of load groove;Between battery and charging port, charging wire is provided, charging wire includes charging head in charging port and soft wire for connecting charging head and battery.The beneficial effects of the utility model are: charging port is set in the bottom center of load groove, optimization returns process, user does not need additional adjustment position to aim at charging head, improves convenience;Soft wire connects charging head and battery, can flexibly bend or stretch when storage box retracts and moves.

The utility model discloses a fuel cell end plate structure of optimization heat management is applicable to fuel cell stack end plate, including end plate body, the end plate body includes water channel area and the edge area of surrounding water channel area arrangement, water channel area is provided with water inlet end, drainage area and water outlet end, water inlet end sets up in one end of water channel area, water outlet end sets up in the other end of water channel area, and drainage area sets up between water inlet end and water outlet end, and water inlet end, drainage area and water outlet end are sequentially communicated and set up, the drainage straight strip of a plurality of mutual parallel is provided in drainage area, and the first gap is provided between adjacent drainage straight strip. Through this application, the cooling water of higher temperature at the fuel cell stack outlet is drained to the water channel area of end plate, and the end plate is temperature compensated through heat exchange, and the problem that the single cell temperature near the front end plate and rear end plate in the stack is lower is solved.

This utility model discloses an intelligent zoned heat dissipation system for frequency converters, including a chassis, a low-temperature zone module, a medium-temperature zone module, a high-temperature zone module, a temperature sensor network module, and an intelligent control unit module. An isolation structure is provided between the medium-temperature zone module and the low-temperature zone module. The medium-temperature zone module is equipped with a second air intake channel that directly introduces ambient cooling air from outside the chassis and a main cooling fan. Temperature sensors monitor the temperature of each zone, and the intelligent control unit dynamically adjusts the speed of the main cooling fan based on the temperature data. This utility model effectively isolates thermal crosstalk between temperature zones by providing an independent, high-quality cold source for the core heat-generating areas and achieves intelligent on-demand heat dissipation, thereby improving heat dissipation efficiency, reducing energy consumption and noise, and enhancing the reliability and lifespan of the frequency converter. It is mainly applied to the heat dissipation of power electronic equipment such as frequency converters and inverters.

The invention relates to the technical field of semiconductor structures, and discloses a semiconductor structure and a preparation method thereof. The polycrystalline silicon layer is located on the surface of one side of the semiconductor substrate layer; the first buried oxide layer is located on the surface of the side, away from the semiconductor substrate layer, of the polycrystalline silicon layer; the graphic structure layer is located on the surface of the side, away from the polycrystalline silicon layer, of the first buried oxide layer, the graphic structure layer comprises a plurality of conductive structures and a plurality of insulator structures, the conductive structures and the insulator structures are alternately arranged in the preset direction, and one sides of the adjacent conductive structures and insulator structures abut against each other; the second buried oxide layer is located on the surface of the side, away from the first buried oxide layer, of the graphic structure layer; the active layer is located on the surface of the side, away from the graphic structure layer, of the second buried oxide layer. The threshold voltage of the semiconductor device can be adjusted, and the electrical performance of the semiconductor device can be flexibly optimized.

The invention discloses a thermal-electric-chemical coupled solid oxide stack which comprises a lower end plate and an upper end plate, and a plurality of SOFC (solid oxide fuel cell) single cells and SOEC (solid oxide electric cell) single cells are arranged between the lower end plate and the upper end plate; each SOFC single battery comprises an SOFC cathode, an SOFC electrolyte and an SOFC anode which are crimped in sequence; each SOEC single battery comprises an SOEC cathode, an SOEC electrolyte and an SOEC anode which are crimped in sequence; the chamber where the SOEC anode is located is communicated with the chamber where the SOFC cathode is located, and oxygen generated by electrolysis of the SOEC anode can enter the SOFC cathode side to participate in the reaction; and the SOFC single batteries and the SOEC single batteries are electrically connected in series through connectors or current collectors. According to the invention, the SOFC units and the SOEC units are arranged in the same electric pile alternately or in blocks, and specific gas paths and circuits are opened, so that gradient utilization of energy and efficient and stable operation of the system are realized.

The invention discloses an efficient heat-conducting impregnation structure of a high-temperature superconducting magnet, and belongs to the technical field of high-temperature superconducting magnet impregnation. The efficient heat-conducting impregnation structure comprises a magnet base, and a central column is arranged on the magnet base; one end of the central column away from the magnet base is connected with a connecting piece; two insulating plates are fixedly arranged between the connecting piece and the magnet base in a sleeving manner; the plurality of high-temperature superconducting magnet coil components are arranged between the two insulating plates; the plurality of high-temperature superconducting magnet coil components are sequentially laminated and sleeved on the central column, and are connected with the central column through the coil framework; the plurality of heat conduction parts are arranged on the high-temperature superconducting magnet coil parts in a one-to-one correspondence manner so as to perform heat conduction on the high-temperature superconducting magnet coil parts; and the copper terminal is arranged between the outermost layer of high-temperature superconducting magnet coil component and the insulating plate, and is connected with an outer side current lead, so that current forms a closed loop. According to the efficient heat-conducting impregnation structure of the high-temperature superconducting magnet, heat can be quickly conducted out, and damage caused by heat accumulation is prevented.

This invention relates to the field of power cable technology and discloses a cross-linked polyethylene insulated overhead cable with rapidly cross-linked silane and its preparation method, comprising: a conductor located at the center of the cable; a conductor shielding layer extruded on the outside of the conductor; an insulation layer extruded on the outside of the conductor shielding layer; an insulation shielding layer extruded on the outside of the insulation layer; a metal shielding layer disposed on the outside of the insulation shielding layer; and an outer sheath of the cable disposed on the outside of the metal shielding layer. A heat storage component located at an area prone to overheating is disposed on the outside of the outer sheath of the cable. The heat storage component allows heat to be transferred to the cable joint or local circuit when overheating occurs due to overload, increased contact resistance, etc. Once the temperature reaches the set melting point of the phase change material, the phase change material will undergo a phase change and absorb a large amount of latent heat, thus stabilizing the temperature of the overheated area near the phase change point, forming a thermal buffer, and preventing uncontrolled temperature rise and heat spread within a certain range.

This invention discloses an ultrasonic-assisted solid-state water electrolysis online hydrogen production device and method. The device includes a water electrolysis reactor and a water tank, with the reactor fixedly installed in the water tank. The lower part of the reactor is filled with a bed of water electrolysis material. A hydrogen outlet is located at the upper end of the reactor, and a water inlet is located at the lower end. A peristaltic pump is connected to the reactor inlet and is located in the water tank. An ultrasonic transducer is installed on the outer wall or bottom surface of the reactor. By installing an ultrasonic transducer on the outside of the reactor, the high-frequency vibration of the ultrasonic bed during the water electrolysis process effectively reduces the non-uniform water diffusion caused by material agglomeration, adhesion, and byproduct coverage. This allows water to diffuse uniformly to the material surface, resulting in a stable hydrogen production reaction and improving the stability of hydrogen supply. Ultrasonic waves also enhance the thermal conductivity of the water electrolysis material bed, improving the thermal management of the reactor during the water electrolysis process.

The present disclosure relates to the field of thermochemical sulfur-iodine cycle water decomposition hydrogen production, and specifically to a HIx phase purification process and system for thermochemical sulfur-iodine cycle hydrogen production, including a Bunsen reaction, a sulfuric acid decomposition reaction, and a HI decomposition reaction. The HIx phase obtained by the Bunsen reaction flows into a HIx phase purification tower; sulfuric acid impurities in the HIx phase undergo temperature reduction, pressure reduction, and temperature increase in the tower, and are converted into hydrogen sulfide; hydrogen sulfide gas precipitates from the solution and enters a hydrogen sulfide combustion tower, and the oxygen generated by the decomposition of hydrogen sulfide gas and sulfuric acid is burned into sulfur dioxide under oxygen-rich conditions, and sulfur returns to the Bunsen reaction in the form of sulfur dioxide. The present disclosure adopts a side reaction path control strategy to completely convert sulfuric acid impurities in the HIx phase into sulfur dioxide, thereby avoiding its harm to the hydroiodic acid decomposition catalyst. No additional impurities are introduced during the entire purification process, and no additional energy consumption is required. The system thermal management is optimized, and the thermal efficiency and energy utilization rate of the overall system are improved.

This invention discloses an active power filter with electromagnetic shielding, belonging to the field of power filter technology. It includes: an active power filter circuit module; and an integrated electromagnetic shielding housing for housing and shielding the active power filter circuit module. At least one structural part of the integrated electromagnetic shielding housing is integrated with the circuitry of the active power filter circuit module to form a functional filtering electrical component. The integrated electromagnetic shielding housing, in conjunction with the active power filter circuit module, forms a comprehensive electromagnetic shielding system that integrates source suppression, path blocking, frequency band absorption, port sealing, and thermal shielding. This invention solves the problems of electromagnetic leakage, large size, high cost, and limited high-frequency shielding effect of traditional split-type shielding, achieving integrated electromagnetic shielding and active filter in terms of structure, electrical system, and thermal management, significantly improving the electromagnetic compatibility, power density, filtering performance, and long-term operational reliability of the equipment.

The application discloses a production system of a negative pole post and relates to the technical field of negative pole posts, which comprises a first carrier for supporting a copper sheet, a second carrier for supporting an aluminum post, an acting piece for heating the copper sheet, a driving source for driving the second carrier to move the aluminum post towards the copper sheet, so that the aluminum post and the copper sheet are in contact and are pressed together to form a negative pole post blank, a stamping and straightening composite mechanism for straightening the processed negative pole post blank, a tensile test tool and / or a tear test tool for testing the straightened negative pole post blank. The application integrates the supporting, heating, pressing, straightening and testing processes through the integration of various components, and a complete negative pole post automatic production system is constructed, so that the negative pole post can be produced on a large scale and economically.