36results about How to "Guaranteed temperature uniformity" patented technology

This invention discloses an optimized method for stator and rotor welding processes in the field of motor manufacturing, comprising the following steps: improving welding quality through pretreatment, coating with modified composite materials, and optimizing laser welding parameters. During pretreatment, the stator and rotor areas to be welded are sanded with 800-1200 grit sandpaper, followed by ultrasonic cleaning with acetone or alcohol for 10-15 minutes to achieve a surface roughness Ra ≤ 1.6 μm; a 0.1-0.3 mm thick layer of modified composite material is coated onto one surface and dried at 80-120°C for 1-2 hours; laser welding is employed, with the molten pool temperature monitored at 1800-2200°C during welding; immediately after welding, the welded parts are placed in a holding furnace at 200-300°C for slow cooling for 2-4 hours, and then cooled to room temperature at a rate of 5-10°C / min. This method effectively improves the strength, toughness, and crack resistance of the welded joint, reduces the heat-affected zone, and minimizes deformation.

The invention relates to the technical field of pressure drop adjustment, in particular to a shelf calandria refrigerant pressure drop self-adaptive adjustment method and system, and the method comprises the steps: determining a plurality of target calandria groups based on a shelf calandria; executing the following operations on each target calandria group in the plurality of target calandria groups: determining a target pressure drop range based on the target calandria group; acquiring an initial pressure monitoring value set group based on the pressure monitoring unit and a target calandria group; acquiring an actual pressure drop based on the pressure difference analysis unit and the initial pressure monitoring value set group; a pre-built refrigerant valve is adjusted based on the flow adjusting unit, the actual pressure drop and the target pressure drop range, an updated valve is obtained, and an updated pressure drop is obtained based on the updated valve; and realizing pressure drop self-adaptive adjustment based on the updated pressure drop. According to the invention, accurate adjustment of the pressure drop of the refrigerant can be realized.

The utility model relates to biological engineering equipment technical field, concretely relates to a biochemical incubator, including base, is equipped with the box on the base, is fixed in the box incubator, is pasted with the conduction sheet on the incubator, and the semiconductor refrigeration heating module is connected with the conduction sheet, and one side of the box is equipped with air filtration system, and is communicated with the incubator through the circulation pipe, and the ultrasonic humidifier is equipped below the semiconductor refrigeration heating module, and is communicated with the incubator through the pipeline, and the incubator is equipped with the sealed door, and there is the gap between the incubator and the box and forms the heat insulation layer, and the controller is connected with the temperature and humidity sensor group, gas sensor group electric signal, can automatically regulate and control each module according to real -time data.

The utility model belongs to the field of batteries, and particularly relates to a novel liquid-cooled side plate battery which comprises a battery box, a battery cell module and liquid-cooled side plates, the battery cell module and the liquid-cooled side plates are arranged in the battery box, the liquid-cooled side plates are provided with bosses, and the liquid-cooled side plates are arranged on two opposite sides of the battery cell module. The bosses of the liquid cooling side plates are all arranged between adjacent battery cells of the battery cell module and located between two adjacent battery cells, the bosses are connected with aerogel, the two opposite ends of the aerogel are both connected to the bosses, and the thickness of the bosses is larger than that of the aerogel. According to the utility model, the use of aerogel is reduced, and the cost is reduced; and an enough expansion space is provided for the battery cell.

This utility model discloses a battery box structure and an energy storage battery system. The battery box structure includes a tray; a top cover is provided on the top of the tray; the front panel of the top cover is provided with a first panel and a second panel; the tray includes a liquid-cooled base plate; the liquid-cooled base plate includes multiple profile base plates; any two adjacent profile base plates are fixedly connected; the top of the profile base plates is used to place multiple individual battery cells; the profile base plates are provided with a first flow channel cavity for liquid inlet and a second flow channel cavity for liquid outlet, as well as an inlet port communicating with the first flow channel cavity and an outlet port communicating with the second flow channel cavity; the first flow channel cavity and the second flow channel cavity are connected; a liquid distribution module is provided at the front end of the liquid-cooled base plate; the liquid distribution module includes a liquid inlet cavity communicating with the liquid inlet and an outlet cavity communicating with the liquid outlet, which are separated from each other; an inlet water nozzle and an outlet water nozzle are respectively provided at both ends of the liquid distribution module. This utility model can reliably dissipate heat and heat the battery inside the box, ensuring heat dissipation and temperature uniformity, and improving the temperature consistency of the battery inside the box.

The utility model relates to fuel cell heat exchange technical field discloses fuel cell cooling water loop temperature equalization type spiral heat exchange pipe, including battery case, the right side fixed coupling of battery case has the supporting plate, the inboard fixed coupling of battery case has the polar plate, the inboard of polar plate is provided with heat pipe mechanism, the top of battery case is provided with temperature measuring mechanism, the top of supporting plate is provided with flow channel control mechanism, flow channel control mechanism is used for the flow rate of different heat pipe flow channel of selection adjustment, the top right end rear side of battery case is provided with filter mechanism, filter mechanism is used for filtering the impurity in coolant. In the utility model, the control of each branch flow channel coolant flow, according to temperature balance each flow channel flow, improve the temperature difference of different area of battery, effectively reduce the phenomenon that some area temperature is too high, effectively keep fuel cell cooling water loop overall temperature equalization.

The utility model relates to the technical field of refrigeration equipment, in particular to an air duct assembly and refrigeration equipment. The air duct assembly is arranged on the inner top wall of a refrigeration cavity of the refrigeration equipment and comprises an air duct cover plate and a drainage assembly, the air duct cover plate and the inner top wall of the refrigeration equipment can form a top air duct, the top air duct can contain a draught fan and an evaporator in the refrigeration equipment, and the air duct cover plate is further provided with an air outlet. The air outlet can discharge air towards the opening end of a refrigeration cavity of the refrigeration equipment, the drainage assembly is arranged at the end, away from the air outlet, of the air duct cover plate, and a drainage opening is formed in the bottom of the drainage assembly. The air duct cover plate can achieve the effects of air guiding and flow guiding. The air outlet can discharge air towards the opening end of the refrigeration chamber, and articles close to the opening end of the refrigeration chamber can be refrigerated in time, so that the temperature uniformity in the refrigeration chamber is ensured.

The invention discloses a mica ceramic heating plate and an assembling method thereof, and belongs to the technical field of electric heating equipment, the heating plate comprises a plate body assembly, the plate body assembly comprises an upper plate cover and a lower plate seat, one end of the lower plate seat is provided with a mounting groove matched with the upper plate cover, and the other end of the lower plate seat is provided with a cavity communicated with the mounting groove; a heating assembly is arranged in the mounting groove and located between the upper disc cover and the lower disc base, the heating assembly comprises a base plate matched with the mounting groove and mica sheets arranged on the surfaces of the two sides of the base plate, and the mica sheets on the two sides of the base plate are flexibly attached to the lower disc base and the upper disc cover respectively. According to the heating disc of the scheme, thermal resistance caused by air gaps in the heating disc can be eliminated, and heat is efficiently conducted to the heating disc; meanwhile, stress generated by thermal expansion and cold contraction of an internal structure can be effectively absorbed, damage such as cracking of the disc body is prevented, and the service life of the disc body is effectively prolonged. According to the scheme, the assembly method is simple, and heat loss caused by air gaps in the heating disc can be effectively eliminated.

The application discloses a kind of based on inflation plate's spray type liquid cooling battery energy storage cabinet and control method, including energy storage cabinet cabinet and heat management module, the battery pack containing electric core is placed in the energy storage cabinet cabinet inside, spray cooling module, fire-fighting module, control module and energy storage converter module;It also discloses a kind of control method simultaneously, so that electric core works at optimum temperature, guarantees electric core safety, prolongs electric core life;Adopt spray liquid cooling mode, contact thermal resistance is lower, surface temperature uniformity is better;Each module is using module integration design, space structure is compact, installation mode is simple, flexibility is high, adapts to different size energy storage battery pack.

The invention relates to the technical field of ceramic product manufacturing, and discloses a rapid color development generation method, device and equipment of ceramic pug and a medium, the method comprises the following steps: obtaining a rendering image of a product to be processed, and extracting a mud color gamut value from the rendering image; extracting color gamut data features by using a feature extraction algorithm, inputting the color gamut data features into a first threshold monitoring model for matching, and determining a reference threshold interval corresponding to the mud blank components and the firing conditions; carrying out shaping and firing treatment according to the reference threshold interval, and obtaining a real-time color gamut value of the outer surface of the pug prototype in the firing process; and dynamically evaluating the sintering state of the pug prototype by using the second threshold monitoring model, and controlling heating termination and cooling according to the sintering state. According to the invention, accurate evaluation of the firing state and intelligent control of heating termination and cooling start are realized, the problems of dependence on manpower, feedback lag and high trial and error cost of a traditional process are effectively solved, the accuracy and consistency of pug color development are improved, and the trial and error frequency and energy consumption are reduced.

This invention discloses a rolling method for Ti80 titanium alloy thin plates. The rolling method includes the following steps: 1. Rolling in a first heat to obtain a first rolled slab; 2. Cutting to obtain a first intermediate slab; 3. Rolling in a second heat to obtain a second rolled slab; 4. Cutting to obtain a second intermediate slab; 5. Rolling in a third heat to obtain a third rolled slab; 6. Cutting to obtain a third intermediate slab; 7. Covering with a steel clasp to obtain a covered lap-rolled ladle; 8. Rolling in a fourth heat, then unpacking, and finally performing shaping annealing to obtain the Ti80 titanium alloy thin plate. This rolling method, by controlling the rolling temperature at different heats and employing reversing cross-rolling between heats, combined with online reheating in the furnace, reduces the significant cracking of titanium alloys caused by temperature drops in traditional processes. It produces Ti80 titanium alloy thin plates with uniform and fine equiaxed α grains in the microstructure and meeting mechanical property requirements, suitable for shipbuilding, machinery, chemical, and petroleum industries.

The invention belongs to the technical field of flat plate slot antenna manufacturing, and discloses a 6061 aluminum alloy flat plate slot antenna brazing and heat treatment manufacturing method. The method comprises the steps of preparing, cleaning, assembling, vacuum brazing, solution treatment and aging treatment, Al-Si-Ge series brazing filler metal is selected, and a vacuum uniform temperature field regulation and control process curve is researched and developed to achieve vacuum brazing of the 6061 aluminum alloy antenna. The problems that in an existing brazing system, the melting point of brazing filler metal is not matched with the melting point of base metal in temperature and the brazing filler metal is not melted synchronously and spread continuously due to uneven temperature distribution of a large-size antenna are solved, and it is guaranteed that a weld joint is continuous and compact. A multiphase flow cooling field homogenization regulation and control tool is used for establishing an antenna full-space cooling field, uniform and rapid cooling of the 6061 aluminum alloy antenna is achieved by regulating and controlling the air fog speed and the coverage area, the problem of solid solution deformation of a thin-wall structural part is solved, and it is guaranteed that the size of the antenna is stable, and the strength of the antenna is improved; and a specification is provided for engineering manufacturing of the high-precision 6061 aluminum alloy flat plate slot antenna.

The utility model relates to the field of embedded industrial control mainboards, in particular to an embedded industrial control mainboard reflow soldering device with stable clamping, which comprises a reflow soldering machine body, a main body for welding an embedded industrial control mainboard, and a soldering groove arranged inside the reflow soldering machine body and used for bearing the embedded industrial control mainboard. The reflow soldering device for the embedded industrial control mainboard is provided with the soldering frame, the bearing plate support, the threaded rod, the clamping sleeve, the telescopic buffer spring, the hexagonal nut, the clamping grating, the positioning point and the vacuum chuck, when the reflow soldering device for the embedded industrial control mainboard is used, the position of the bearing plate support on the soldering frame can be adjusted through the bolt according to the size of the current embedded industrial control mainboard, so that the embedded industrial control mainboard can be conveniently and rapidly welded. The embedded industrial control mainboard is placed in the groove of the bearing plate support, the threaded rods are sleeved with the clamping sleeves at the four corners of the clamping grating respectively, the hexagonal nuts are twisted to enable the clamping sleeves to press the telescopic buffer springs downwards, and the embedded industrial control mainboard is clamped and fixed from the upper portion through the clamping grating.

This utility model relates to the field of p-nitrobenzoic acid production technology, and in particular to a device for quantitatively dispensing raw materials for p-nitrobenzoic acid production. The device includes a mixed acid solution reactor, a nitration reactor, a staged cooling assembly, and a control mechanism. The mixed acid solution reactor is used to prepare a mixed acid solution of sulfuric acid and nitric acid. The nitration reactor is used to react the cooled mixed acid solution with toluene. The staged cooling assembly is connected between the output end of the mixed acid solution reactor and the input end of the nitration reactor, and is used to cool the mixed acid solution that needs to be quantitatively added to the nitration reactor. The control mechanism includes a controller and a temperature sensor. This utility model uses the staged cooling assembly to cool the mixed acid solution that needs to be quantitatively added to the nitration reactor in small batches, effectively avoiding the problem of cooling lag caused by large quantities of mixed acid solution and long cooling paths, and ensuring the temperature uniformity of the mixed acid solution.

The utility model relates to the field of constant temperature water bath, especially a glass constant temperature water bath box device, including heating groove, the both ends outer wall welding of heating groove has the adjusting pipe, and the heating groove is located at adjusting pipe and is equipped with the adjusting structure, the bottom inner wall of heating groove is installed with the partition, and the bottom outer wall center of heating groove is equipped with the balance subassembly, the bottom inner wall of heating groove is installed with the heater, the adjusting structure includes the mounting groove of opening in the adjusting pipe top, the adjusting groove of opening between heating groove and adjusting pipe, the electric push -rod of installing in the inner wall of mounting groove, the utility model starts the rotating motor and drives the stirring vane rotation, and the stirring vane makes the medium fully mixes, guarantees the temperature homogeneity of medium, inserts the test tube to the fixed hole of fixed plate, and the medium of fixed plate bottom carries out constant temperature to the test tube, is convenient to use, is convenient to fix the test tube, is convenient to constant temperature test tube or petri dish.

The invention discloses a method and a device for synthesizing lithium sulfide with a controllable particle size. The method comprises the following steps: S1, dissolving lithium sulfide; performing evaporation concentration and low-temperature drying to obtain a lithium hydrosulfide powder raw material; s2, introducing high-purity hydrogen sulfide gas into a crushing and mixing chamber, and further crushing and fully mixing under strong impact of high-speed jet flow; s3, performing vulcanization reaction through the fluidized bed reaction chamber to obtain high-purity lithium sulfide particles; and S4, after synthesis is completed, transferring into a glove box. Compared with the prior art, the method disclosed by the invention has the advantages that the ethanol is adopted as a solvent, the uniformity of a lithium sulfide initial blank shell can be ensured to the greatest extent through a recrystallization method, and the high-quality lithium sulfide with controllable particle size can be obtained more quickly by accurately controlling the pressure of high-speed jet flow and regulating and controlling the particle size of a precursor material through the crushing and mixing chamber; the purity is higher, the particle size distribution is more uniform, the operation process is simple, convenient and feasible, and the method is suitable for large-scale industrial production.

A flatness-controllable heating workbench relates to the technical field of heating tables and comprises a heating plate, a heat insulation plate, a heat insulation back plate, a connecting plate, a heating pipe, a plurality of first connecting pieces and a plurality of second connecting pieces. A plurality of heating pipes are arranged in the heating plate; the first connecting piece penetrates through the heat insulation plate and the heat insulation back plate, and the heat insulation plate and the heat insulation back plate are fixedly connected to form a heat insulation plate assembly; a plurality of first connecting pieces are arranged at the peripheral position and the middle position of the heat insulation plate assembly; the second connecting piece sequentially penetrates through the heating plate, the heat insulation plate assembly and the connecting plate and fixedly connects the heating plate, the heat insulation plate assembly and the connecting plate to form a workbench. Wherein the heating plate is connected with the heat insulation plate; a plurality of second connecting pieces are arranged on the periphery of the workbench, and the first connecting pieces and the second connecting pieces do not coincide in position. According to the flatness-controllable heating workbench, the technical problem that in the prior art, the flatness of the working face of a heating table is poor is solved to a certain extent.

The application provides a high-temperature alloy melt structure synchronous radiation in-situ dynamic observation device and method, comprising a vacuum cabin, a heating table, a heating lamp unit, a synchronous radiation source, a temperature control unit and a CCD collector; the heating table is arranged in the vacuum cabin and used for placing a high-temperature alloy sample and heating the high-temperature alloy sample upward; the heating lamp unit is installed on the vacuum cabin and used for irradiating the high-temperature alloy sample from two directions of vertical downward and horizontal lateral; the temperature control unit is connected to the heating table and the heating lamp unit and used for regulating and controlling the heating temperature of the heating table and the heating lamp unit; the CCD collector is used for receiving synchronous radiation rays passing through the high-temperature alloy sample and imaging to realize in-situ dynamic observation of the sample. The application can ensure the temperature uniformity of the high-temperature alloy material in the melting process, improve the high-temperature alloy material melt structure data collection accuracy and realize reliable observation of the high-temperature alloy material melt structure with a high melting point.

This invention discloses a method and system for low-temperature control of acid rain samples based on active temperature control and semiconductor refrigeration, belonging to the field of acid rain sample low-temperature control technology. The method includes the following steps: sample pretreatment and temperature control triggering, dynamic adjustment of PID control quantity and mapping of PWM signal, semiconductor refrigeration mode driving and execution, and feedback parameter updating and closed-loop control cycle. This invention pretreatment and packaging of acid rain samples into standard samples, collecting temperature data to determine whether temperature control is needed; during temperature control, according to a preset cycle, the PID control quantity is adjusted based on the temperature deviation and mapped to a PWM signal to drive the semiconductor refrigeration module to execute the corresponding mode, collecting and updating the temperature and updating the feedback variables, forming a negative feedback temperature control loop through cyclic execution. This improves the reliability of low-temperature control of acid rain samples and solves the problem of low reliability in existing technologies.

The utility model discloses a test box with a zoning temperature control function, which comprises a box body, a centrifugal fan is arranged at the air inlet end of the box body, a test chamber is arranged in the box body, the test chamber is divided into a preheating zone, a working zone and a buffer layer along the airflow direction, each zone is provided with an independent temperature control actuator, and the temperature control actuator is connected with the centrifugal fan. The preheating area comprises a liquid nitrogen spraying device arranged at the top of the test chamber and a high-temperature ceramic heating sheet arranged on the side wall of the test chamber, a PTC heating film is embedded in the inner wall of the working area, a micro-channel cold plate is arranged at the bottom of the working area, and the buffer area is provided with a semiconductor chilling plate array and flow guide fins. Transient temperature adjustment is achieved through liquid nitrogen in the preheating area, composite temperature control is achieved through the PTC heating film and the micro-channel cold plate in the working area, temperature fluctuation is dynamically absorbed through the semiconductor chilling plate array in the buffer area, the temperature gradient is formed through one-way airflow, the temperature change rate is increased, and temperature uniformity is guaranteed.

The invention discloses a production method of a hot-rolled steel plate for a high-grade steel pure hydrogen conveying pipeline. The steel plate comprises the following chemical components in percentage by weight: 0.03-0.06% of C, 0.10-0.20% of S i, 1.10-1.40% of Mn, less than or equal to 0.008% of P, less than or equal to 0.001% of S, 0.040-0.050% of Nb, 0.030-0.040% of V, 0.005-0.020% of Ti, 0.20-0.30% of Cr, 0.10-0.20% of N i, 0.020-0.040% of Al, less than or equal to 1.5 ppm of H, less than or equal to 20 ppm of O, less than or equal to 40 ppm of N and the balance of Fe and impurities. And by combining low-temperature heating and rolling of the plate blank, the produced steel plate has high strength and good hydrogen embrittlement resistance, and the requirements of steel for the high-pressure pure hydrogen conveying pipeline are met.

The utility model relates to the technical field of medical examination, in particular to a sample storage box for medical examination, which is characterized in that a storage cavity is fixedly mounted in the storage box, and heat dissipation cavities are fixedly mounted on two sides in the storage cavity; by pushing the inserting plate up and down, the inserting plate can move up and down on the surface of the main rod through the through hole, a first rubber pad on the inner wall of the through hole is tightly attached to a second rubber pad on the surface of the main rod, the first rubber pad and the second rubber pad can be elastically attached to each other, and therefore the position of the inserting plate can be fixed in real time; the distance between the inserting plate and the bottom plate can be adjusted by adjusting the vertical position of the inserting plate, and meanwhile, the distance between the inserting hole and the bottom groove can be synchronously adjusted, so that the distance between the inserting hole and the bottom groove can be adjusted to a proper position according to the length of a test tube, and the test tube can be just placed between the inserting hole and the bottom groove; therefore, test tubes with different lengths can be placed.

This invention relates to an electrostatic chuck with a multiple heating zone structure. The electrostatic chuck with multiple heating zones includes: multiple miniature multi-heater zones (11_1 to 11_N), each of which can be individually heated and controlled by a heating element; a switching module (13) including individual switching devices (14_1 to 14_N) connected to each of the multiple miniature multi-heater zones (11_1 to 11_N); and a switching control module (15) controlling the operation of the switching module (13), wherein different portions of a wafer fixed to the electrostatic chuck are independently heated by each miniature multi-heater zone (11_1 to 11_N).

The utility model relates to the technical field of part processing heat treatment, and discloses aircraft part processing heat treatment equipment which comprises a shell, two supporting frames are fixedly connected to the side face of the shell, a water tank is fixedly connected to the side faces of the two supporting frames, and a liquid circulation heating assembly is arranged on the inner side of the water tank. The two sides of the water tank are each provided with two heat dissipation assemblies, a cover plate is arranged on the inner side of the end of the shell, a plurality of clamping assemblies are arranged on the side face of the cover plate, a bottom block is fixedly connected to the inner side of the shell, and a ventilation shell is arranged on the side face of the bottom block. According to the utility model, an operator holds the handle, so that the sliding block plate can be pulled out along the sliding groove rod, and the parts are placed in areas separated by the baffle plates according to the conditions of the parts. After being placed, the sliding block plate is pushed to reset, and the clamping blocks at the end parts of the spring rods can clamp the parts to clamp the parts, so that the parts are prevented from sliding under vibration and airflow impact, the stability of the parts is ensured, and the heat treatment effect is consistent.

The application discloses a multi-angle high-efficiency asphalt mixer, belonging to the technical field of asphalt mixing, which comprises a stirring barrel body, supporting legs symmetrically arranged at the lower end of the stirring barrel body, and a handle rotatably arranged at the front and back sides of the stirring barrel body, an installation cavity arranged at the top end of the stirring barrel body, an upper cover plate fixed at the top end of the installation cavity, a discharging pipe fixed at the bottom end of the stirring barrel body, a discharging box arranged at the right upper end of the upper cover plate, a power motor arranged at the middle of the upper cover plate, and a first reciprocating screw rod fixed at the lower end of the power motor. The multi-angle high-efficiency asphalt mixer is characterized in that the first stirring frame and the second stirring frame are arranged to rotate in different directions, the first stirring frame is arranged to rotate while driving the second stirring shaft to rotate and self-rotate in the other direction through the transmission structure, and the second stirring shaft is arranged to horizontally reciprocate during self-rotation, so that the asphalt in the stirring barrel body is stirred from multiple directions, and the stirring efficiency and the stirring uniformity of the asphalt are improved.

The utility model relates to battery technical field, discloses a vapor chamber and battery pack, vapor chamber has first main runner, second main runner and two groups of branch runner, the length of first main runner extends along the first direction, the length of second main runner extends along the second direction, the first direction intersects with the second direction, the two groups of sub-runners are respectively arranged on two sides of the second main runner along the width direction, each group of sub-runners comprises a plurality of sub-runners arranged at intervals, one ends of the sub-runners along the length direction are communicated with the first main runner, and the other ends of the sub-runners are communicated with the second main runner; the first main runner is provided with a first water inlet and outlet located between the two sets of branch runners, and the second main runner is provided with a second water inlet and outlet located in the end, in the second direction, of the second main runner. When the water inlet and outlet states of the first water inlet and outlet and the second water inlet and outlet of the temperature equalizing plate are exchanged, the temperature equalizing effect of the battery pack cannot be influenced, and the mounting requirements of various vehicle types can be met.

The utility model relates to an efficient heat management air-cooled battery pack in the field of battery pack heat dissipation, which comprises a battery box cover, a battery module, a battery box body, an explosion-proof valve, an air-cooled system and a module side cover, and the air-cooled system is externally arranged below the battery box body; and high-enthalpy-value phase-change materials are arranged at battery tabs on two sides of the battery module. The external air cooling assembly ensures sufficient air inlet amount, the high-enthalpy-value phase change material assists in heat absorption, and the local high-temperature risk is reduced; the IP67-level sealing structure prevents oxygen from entering, and combustion aggravation after thermal runaway is avoided; and the high-enthalpy phase change material effectively shares the heat dissipation load, so that the temperature balance of the battery pack in a high-power working state is ensured, and the service life of the battery is prolonged.

The utility model discloses a kind of furnace door opening and closing device and reaction furnace, it is related to the technical field of semiconductor equipment.The furnace door opening and closing device includes support plate, fixed support, connecting rod assembly, support arm and driving part, support plate is connected with furnace tube and has avoidance mouth, avoidance mouth is configured as exposing furnace mouth.Fixed support is set at the side of support plate away from furnace tube;The first end of support arm is connected with furnace door, the second end is rotatably connected with fixed support, and first rotation pair around first axis is formed.Connecting rod assembly includes at least two rotatably connected connecting rods, the first end of connecting rod assembly is rotatably connected with the second end of support arm, and second rotation pair around second axis is formed.The second end of connecting rod assembly is rotatably connected with fixed support, and third rotation pair around third axis is formed.Driving part drives the second end of connecting rod assembly to rotate, so that connecting rod assembly drives support arm to swing, to utilize furnace door to open and close avoidance mouth, improve the docking precision of furnace door to furnace mouth.