147results about How to "Improve temperature uniformity" patented technology

The invention relates to an array electric tracing band heating control method and system, and the method comprises the steps: an array construction and control circuit construction step: arranging and fixing a heating unit array on a supporting body, and configuring one-to-one voltage regulation and control links; a temperature value obtaining step: calculating resistance by collecting voltage and current of the heating unit, and obtaining the real-time temperature of the heating unit in combination with the resistance-temperature reference curve; a compensation voltage calculation step: establishing a model based on the bearing body partition temperature difference, the heating unit temperature and the multi-dimensional influence parameters, and calculating a compensation voltage; a temperature regulation and control step: superposing the compensation voltage and the real-time voltage to regulate the heating power so as to realize the precise temperature control of the bearing body partition; the system comprises a main control module, a power drive and control module, a sensor module and a power supply module, and all the modules cooperate to complete control logic. According to the invention, the bearing body partition temperature control precision and the reliability of the system are improved, and the system adapts to various bearing body forms.

The invention relates to the technical field of copper pipe heat dissipation, in particular to a micro-channel heat dissipation device based on a copper pipe structure, which comprises a heat dissipation substrate, a copper pipe type heat dissipation channel and a liquid cooling circulation system, the copper pipe type heat dissipation channel is composed of a plurality of plastic copper pipes and replaces a traditional micro-channel or vapor chamber structure. The copper pipe is embedded or fixed in the heat dissipation substrate or on the surface of the heat dissipation substrate, cooling liquid circulates in the copper pipe, and efficient heat dissipation is achieved through the combined action of forced convection heat exchange and heat transfer; the copper pipe has good plasticity and can be subjected to three-dimensional bending forming according to heat source distribution and spatial layout, through the synergistic effect of forced convection and phase change heat transfer, the heat transfer efficiency is improved, particularly, extremely high local heat flow density can be coped, the chip is effectively prevented from being overheated, and the heat transfer efficiency is improved. The heat dissipation channel can be bent and formed in a three-dimensional space according to heat source distribution, accurate matching with the heat source form is achieved, limitation of traditional plane heat dissipation is broken through, and optimal configuration of heat dissipation capacity and heat flux density is achieved.

The present application relates to a kind of staggered jet microchannel heat sink, including cover layer, manifold layer, jet layer and microchannel layer stacked in turn, cover layer is equipped with fluid inlet and fluid outlet, manifold layer is used to shunt the fluid of fluid inlet, jet layer is equipped with array distribution jet orifice and backflow hole, jet orifice and backflow hole staggered distribution, microchannel layer is equipped with heat dissipation groove, heat dissipation groove is equipped with array distribution columnar needle fin, and form needle fin microchannel, the axial direction of columnar needle fin and the jet direction of jet orifice are parallel to each other;Fluid emitted by jet orifice is boiled and carries out transverse flow in needle fin microchannel and absorbs heat, based on the staggered distribution of jet orifice and backflow hole, the transverse flow fluid in needle fin microchannel presents staggered counterflow, and flows to fluid outlet by backflow hole.Compared with prior art, the present application improves the temperature uniformity of heat dissipation object, effectively suppresses the generation of local hot spot and greatly improves heat exchange efficiency.

The invention discloses an air-liquid temperature control device and method. The air-liquid temperature control device comprises a refrigerating unit, a controller, a first electronic expansion valve, a second electronic expansion valve group, a liquid cooling module and an air cooling module, the refrigerating unit is communicated with an inlet of the air cooling module through a first electronic expansion valve, is communicated with an inlet of the liquid cooling module through a second electronic expansion valve group, and is used for providing refrigerating power according to the requirement of a heat energy load; an outlet of the air cooling module and an outlet of the liquid cooling module are communicated with the refrigerating unit; the controller is connected with the first electronic expansion valve and the second electronic expansion valve set and used for controlling the opening degree of the first electronic expansion valve and / or the opening degree of the second electronic expansion valve set according to the requirement of the heat energy load so as to adjust the refrigerant flow of the air cooling module and / or the refrigerant flow of the liquid cooling module, and the energy consumption of the air-liquid temperature control device is reduced. And meanwhile, the integration level, the temperature control efficiency and the temperature control precision of the air-liquid temperature control device are improved, and the temperature uniformity of a plurality of heat energy loads is improved.

The present invention relates to a susceptor, and in the ceramic susceptor of the present invention, a multi-layered structure of a heating element pattern is arranged in a manner that circular arc portions do not overlap, or a straight line section of the heating element is arranged at different angles with respect to the center in different layers, or even in a single layer structure of the heating element pattern, a straight line section of the heating element is arranged at different angles with respect to the center, thereby improving the temperature uniformity in the entire area of the upper surface of the susceptor.

This utility model discloses a mobile power bank aging cabinet in the field of aging cabinets, including a cabinet body. The cabinet body has an internal partition plate that divides the interior into a first receiving cavity and a second receiving cavity. The surface of the partition plate has several vents, which are equidistantly arranged between adjacent vents. The top of the cabinet body has several air inlets, which are symmetrically arranged between adjacent air inlets. These air inlets are connected to the second receiving cavity. This mobile power bank aging cabinet, through the partition plate forming independent first and second receiving cavities, combined with the coordinated design of top air inlets, bottom air outlets, and side heat dissipation vents, and the combined layout of circular heat dissipation vents and ventilation holes, achieves stratified hot air flow, improves temperature uniformity, increases the effective ventilation area within the same space, and, by optimizing the heat conduction path, increases the testing capacity and reduces energy consumption within the same space.

The application provides a micro-channel water-cooled plate flow equalization structure, which comprises a fluid inlet of a micro-channel water-cooled plate, a flow collecting box, a rough element structure, parallel arranged micro flow channels, a flow converging box and a fluid outlet of the micro-channel water-cooled plate; the rough element structure is arranged at the rear half of the parallel arranged micro flow channels to adjust flow resistance, so that pressure drops of the front half of the flow channels are approximately equal; refrigerant enters the flow collecting box through the fluid inlet of the micro-channel water-cooled plate, flows through the rough element structure, converges in the flow converging box and is discharged from the water-cooled plate through the fluid outlet of the micro-channel water-cooled plate. The method and device improve the problem of uneven flow distribution in the micro flow channels of the micro-channel water-cooled plate and improve temperature uniformity of the water-cooled plate. The method and device introduce the rough element structure, realize flow equalization effect, enhance fluid disturbance, destroy thermal boundary layer and improve convective heat transfer effect of the water-cooled plate.

The invention relates to an intelligent temperature control system and control method for a reaction disc of a biochemical analyzer, and the system comprises a temperature sensing unit which collects the real-time temperature distribution data of multiple regions of the reaction disc, and provides a precise data source for temperature control; the environment temperature sensor is used for monitoring the change of the environment temperature in the instrument, monitoring the change of the environment temperature in real time and providing environment parameters for anti-interference compensation; the thermal disturbance detection module is used for establishing a temperature disturbance model for reagent addition, providing a disturbance predicted value and improving the anti-interference capability; the adjusting control module is used for realizing double-closed-loop control logic, calculating a basic control quantity and a compensation control quantity and generating a total control instruction; the refrigerating and heating module responds to the control instruction and adjusts the temperature of the reaction disc through refrigerating / heating action; and the main control module is responsible for data overall planning, parameter management and control instruction issuing. The device has the beneficial effects that the temperature precision of the reaction disc is improved; the response speed is greatly improved; the anti-interference capability is obviously enhanced; and the temperature uniformity is obviously improved.

The utility model discloses a food grade liquid cold storage tank, which relates to the technical field of food storage and specifically comprises a support and a Miller plate evaporator, a cold storage tank body is arranged at the top of the support, and a breather valve, a stirring structure, an inlet hole and a liquid inlet are arranged at the top of an inner cavity of the cold storage tank body. The inner cavity of the refrigeration tank body is provided with a pressurized automatic rotary cleaning CIP spray head, the stirring structure comprises a stirring rod movably connected with the top of the inner cavity of the refrigeration tank body, the top end of the stirring rod is provided with a stirring blade I, and the bottom end of the stirring rod is provided with a stirring blade II. According to the food-grade liquid refrigeration tank, manufacturing of the Miller plate evaporator and connection of the refrigeration plate and the liquid layer are achieved through the laser welding technology, the deformation probability of the inner wall of the refrigeration tank body is reduced, the smoothness and the use strength of the interior of the refrigeration tank body are guaranteed, and when the refrigeration tank is used, the refrigeration plate directly makes contact with liquid in the tank, so that the refrigeration effect is improved. The heat exchange efficiency is optimized, and the using effect is improved.

The utility model belongs to the field of refrigerant gas-liquid two-phase phase change heat dissipation technology, especially a kind of phase change uniform temperature battery heat dissipation device, comprising: liquid cooling plate;U-shaped connecting pipe refrigerant passage is provided with two, two U-shaped connecting pipe refrigerant passage is respectively symmetrically arranged on the liquid cooling plate and position adjustable setting in the side close to two U-shaped connecting pipe refrigerant passage, U-shaped connecting pipe refrigerant passage and the heat exchange block inside are equipped with wick and the groove for containing wick in the heat exchange block, heat exchange block is filled with refrigerant medium, improves the uniform temperature effect.The utility model structure is simple, effectively prevent the problem that battery module local overheating and cooling liquid temperature rise along the way when liquid cooling radiates, effectively reduce the problem that refrigerant flow distribution is uneven when new energy automobile power battery adopts refrigerant direct cooling, temperature difference is large, ensure that power battery works in the appropriate temperature range, convenient for people to use.

The utility model discloses a layered and opposite type sinking burner for ladle roasting, including gas pipeline, primary air casing, secondary air casing and tertiary air casing, the upper end of gas pipeline is used for with gas supply pipeline intercommunication and the lower end opening forms gas spout, the gap between primary air casing and gas pipeline forms primary air channel, the gap between secondary air casing and primary air casing forms secondary air channel, the gap between tertiary air casing and secondary air casing forms tertiary air channel, and primary air channel, secondary air channel and tertiary air channel are all used for with preheating combustion air pipeline intercommunication, and the lower end opening of primary air casing forms primary air spout, and the lower end opening of secondary air casing forms secondary air spout, and the lateral wall of tertiary air casing is equipped with a plurality of tertiary air spout. Can guarantee the full mixing of gas and combustion air, and can make full use of the heat of high temperature flue gas, and can carry out effective afterburning treatment to the unburnt component remaining in high temperature flue gas.

This invention provides a film that combines thermal conductivity, thermal insulation, and electromagnetic shielding. It includes a high thermal conductivity film, a phase change film, and a thermally insulating electromagnetic shielding film. The high thermal conductivity film and the thermally insulating electromagnetic shielding film are respectively disposed on both sides of the phase change film. The thickness of the high thermal conductivity film is 0.01–0.5 mm; the thickness of the phase change film is 0.1–1 mm; and the thickness of the thermally insulating electromagnetic shielding film is 0.05–1.5 mm. This invention, combining thermal conductivity, thermal insulation, and electromagnetic shielding, can effectively solve the problem of poor heat dissipation in electronic devices such as mobile phones under high load, while reducing the impact of electromagnetic radiation on users. The product is lighter, thinner, and more flexible; the entire film product can be completely folded without material breakage.

The present application provides a kind of low load under coal mill outlet wind powder temperature regulating system and method, including temperature sensor group, flow sensor, coal dust concentration sensor, temperature regulating device and control unit, wherein: temperature sensor group is used to measure the wind powder temperature of different positions of coal mill outlet pipeline;Flow sensor is used to measure the wind powder flow of different positions of coal mill outlet pipeline;Coal dust concentration sensor is used to detect the coal dust concentration in the coal mill outlet pipeline;Temperature regulating device is used to adjust the wind powder temperature of coal mill outlet pipeline;Control unit is used to receive the signal of temperature sensor group, flow sensor, coal dust concentration sensor, calculate temperature regulating amount and output signal to temperature regulating device to the wind powder temperature of coal mill outlet.The present application ensures that the wind powder temperature of coal mill outlet is stable near the target value, improves the combustion efficiency, and ensures the stable operation of the entire thermal system.

This utility model discloses an electric heating forced-air drying oven, relating to the technical field of drying ovens. The electric heating forced-air drying oven includes an outer shell and a controller on one side. An exhaust port is provided at the upper end of the outer shell, and cavities are provided on both sides of the outer shell. Mounting holes are provided on the side walls of the cavities, and an air outlet plate (first and second) is rotatably mounted in each of the two mounting holes. The first and second air outlet plates are connected by an air duct, and the air inlet of the air duct is connected to the air outlet of a heating pipe. The air inlet of the heating pipe is connected to the air outlet of a blower. This utility model, through the rotating air outlet plates and the staggered air outlet design, achieves uniform airflow distribution inside the drying oven, effectively improving temperature consistency and drying efficiency.

The utility model discloses an outlet gas temperature regulation and control device of a sulfur burning furnace. The outlet gas temperature regulation and control device comprises a graded regulation and control valve body, a multi-point temperature measurement assembly and a uniform flow temperature control cavity, the graded regulation and control valve body, the multi-point temperature measurement assembly and the uniform flow temperature control cavity are connected in series step by step and are mounted on a furnace gas main pipe at the rear end of the sulfur burning furnace; through the synergistic effect of graded adjustment, multi-point monitoring and forced flow uniformizing, the problems that a traditional device is large in temperature fluctuation and uneven in mixing are solved, the regulation and control precision is improved, and the energy consumption and the maintenance cost of the sulfur acid making process are remarkably reduced.

The application discloses a dew point temperature control system of a light composite environment simulation test box, and belongs to the technical field of extreme climate light composite environment simulation test. In view of the problem that the existing light environment simulation test box cannot be compatible with low-temperature and high-temperature and high-humidity extreme climate environment simulation test due to condensation of light glass, the dew point temperature control system of the light composite environment simulation test box is automatically controlled by using light-transmitting double-layer glass devices and software, the temperature of the interlayer glass is automatically adjusted by the control system according to a test program, the temperature of the interlayer glass is always higher than the dew point temperature corresponding to the temperature and humidity in the test chamber, the condensation phenomenon of the light glass is fundamentally avoided, the composite light environment simulation test of the test box under the extreme climate of low temperature-50 DEG C, high temperature 125 DEG C and humidity 20%-95% is realized, the accuracy of test results is ensured, and the test standard requirements are met.

A semiconductor processing device and its base support assembly include a central support pillar and at least three edge support pillars. The central support pillar coincides with the central axis of the base, limiting base eccentricity after heating and solving the eccentricity problem caused by the different linear expansion of the support pillar and the base. By reducing the cross-sectional area of ​​the central support pillar, the influence of light refraction and reflection on the thermal radiation optical path of the base is reduced. By reducing the contact area between the support pillar and the base, temperature conduction is reduced, thereby improving temperature uniformity. Each support pillar includes an upper pillar and a lower pillar made of different materials. The light absorption rate of the upper pillar is the same as or similar to that of the base, making the temperature difference between the upper pillar and the base approach zero, ensuring good temperature uniformity of the base. The upper pillar has extremely low thermal conductivity, which can block heat conduction from the upper pillar to the lower pillar, reducing heat loss, ensuring heat balance of the base, and improving the temperature distribution uniformity of the substrate.

The application discloses a spraying device and a reaction furnace, and solves the technical problems that titanium exists in a large block, is difficult to discharge, and production continuity is poor in the prior art. The spraying device comprises a spraying gun, a main pipe, and a branch pipe group. The lower end of the main pipe is closed. The branch pipe group comprises a plurality of branch pipes for extending into molten magnesium chloride in a reaction furnace. The plurality of branch pipes are communicated with the main pipe and are distributed along the circumference of the main pipe. The branch pipe is provided with a spray hole for spraying titanium tetrachloride. A driving assembly is used for driving the spraying gun to move in the height direction. The spray hole of the spraying device is not easy to be blocked, and the formed titanium exists in a granular form, thereby improving the production continuity.

This invention discloses a dual-duct vertical cooling device for material cooling and waste heat utilization. The main body of the device consists of a cooling cylinder, a feed hood, a rotary support platform, a discharge hood, and an external support frame. Multiple sets of cooling cones and a material collection tray are vertically arranged inside the cylinder, with a central ventilation duct in the center. The external support frame, through circumferential guide wheels and a cylinder retaining ring, ensures stable operation. The cooling cones adopt a combination of outer and inner cone structures, combined with a skirted concave design, which, combined with the rotation of the equipment, achieves flat material dispersion, expanding the gas-solid heat exchange area. The dual-duct system operates independently: turbid air is fluidized and pressure-stabilized by the discharge hood before directly exchanging heat with the material, with the heated gas used for material preheating; clean air indirectly exchanges heat with the cone walls through the central ventilation duct, forming clean air for use in the plant area. This invention achieves uniform material cooling, broadens the pathways for waste heat utilization, improves cooling effect and waste heat recovery efficiency, and is suitable for rotary kiln production lines in magnesium smelting and other similar applications.

This application relates to the field of infrared remote sensing instrument calibration technology, and provides a high-dynamic-range, large-aperture, high-precision on-board blackbody radiation source and its temperature control method. The main body of this on-board blackbody radiation source is temperature-controlled by a refrigerator, exhibiting a large dynamic range, capable of temperature control from 200K to 310K. Through a three-layer structure consisting of the radiation source cavity, a cooling inner shell, and an outer shell, zoned temperature control via a heat transfer bracket, and a three-layer thermal insulation installation design, the temperature uniformity and stability of the blackbody radiation source are significantly improved, with temperature uniformity exceeding 30mK. Simultaneously, it possesses high emissivity (spectral emissivity reaching 0.998) and an aperture as large as 310mm, meeting the requirements for large field-of-view, long-distance use.

This application discloses a stirring device for a fermenter used in the production of antibiotic enzymes. The device includes a stirred fermenter and a stirring assembly. The stirred fermenter includes a tank body and a lid, with the lid connected to the top opening of the tank body. The stirring assembly includes stirring tubes and stirring blades. Several stirring tubes are vertically rotatably connected to the lid, with the bottom ends of the stirring tubes located within the tank body. Several stirring blades are provided on each stirring tube. A driving component for rotating the stirring tubes is provided on the lid. A first temperature sensor is provided on each stirring tube, and the first temperature sensor is electrically connected to the corresponding driving component. This application reduces the possibility of localized overheating in the fermentation device and improves the fermentation quality of the antibiotic enzymes.

The utility model discloses a T / R assembly liquid cooling device suitable for a high-heat-flux and high-overload environment, a T / R assembly and a radar. The T / R assembly liquid cooling device comprises a mounting plate and a liquid cooling cavity formed in the mounting plate; the liquid cooling cavity is internally provided with a plurality of branches, and a main liquid inlet path and a main liquid return path which are isolated from each other; fins are fixedly arranged in the multiple branches, the main liquid inlet path and the main liquid return path; the branches are arranged in parallel and are not communicated with each other, the first ends of the branches are communicated with the main liquid inlet path, the second ends of the branches are communicated with the main liquid return path, and the plurality of branches and the fins increase the heat dissipation area, so that the heat dissipation capability of the liquid cooling device is enhanced, the strength of the liquid cooling device is improved, and the liquid cooling device is ensured to meet the requirement of high overload impact resistance; the plurality of branches are not communicated with each other, and the temperature and the flow of the cooling liquid are the same, so that the liquid cooling device has good temperature uniformity.

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 invention discloses a novel micro-channel type cooling structure device for a disc laser. The novel micro-channel type cooling structure device comprises a sealing cover, a heat sink, a crystal, a supporting ring and a vortex-shaped channel. The sealing cover and the shell are made of copper-tungsten alloy vortex-shaped flow channels, the main body material of the vortex-shaped flow channels is diamond, and the vortex-shaped flow channels are realized through an etching process, and the vortex-shaped flow channels have the structural advantages that water inlets are formed in the periphery and water outlets are formed in the center, so that the influence on the crystal surface shape caused by overlarge stress generated on the back surface of a heat sink during collision of a traditional jet flow structure is avoided; the light beam quality is reduced; meanwhile, the four vortex flow channels are combined with local impact, so that the fluid generates strong secondary flow and boundary layer disturbance, the convective heat transfer coefficient is increased, a circular heat source of a light spot with the diameter of 17 mm is well adapted, and compared with a traditional micro-flow-channel structure, the temperature uniformity is greatly improved. The invention has the advantage that the problems of stress deformation and non-uniform heat dissipation existing in large-area sheet crystal heat exchange are solved through a unique bionic flow channel structure.

The application discloses a liquid fuel distribution groove, wherein an external fuel passage and an internal fuel passage are respectively separated by a blocking boss and a blocking area; a first fuel supply pipe can supply fuel to the internal fuel passage and the external fuel passage simultaneously; a second through hole is only in fluid communication with the external fuel passage; fuel supplied by the first fuel supply pipe flows into the internal fuel passage through a first through hole and flows forward through each atomizer connecting pipe distributed in a circumferential direction; fuel flowing into the external fuel passage through the first through hole flows reversely and finally flows into a second fuel supply pipe through the second through hole. The liquid fuel distribution groove can adjust fuel temperature simultaneously in the process of supplying fuel to a liquid fuel atomizer, plays a preheating or cooling role, and can also adjust fuel quality, and has simple structure and low manufacturing cost.

The application provides a kind of micro-channel flow field mapping-based energy storage battery cluster dynamic uniform temperature control method, device and medium, belongs to energy storage thermal management and intelligent control technical field. Time series state vector and thermal response vector are constructed by collecting battery cluster operation data to form micro-channel flow field-thermal response data set. A flow-thermal coupling state evolution model is constructed, including an encoding module and a prediction module, and a prediction model is obtained after training. Based on the model, a thermal potential equilibrium objective function is constructed, and a control vector is optimized in combination with the flow field reconstruction constraint. The flow field distribution of the micro-channel liquid cooling system is adjusted in real time, and the model is updated online and adaptively. This method improves the temperature uniformity of the battery cluster while reducing energy consumption, enhances the adaptability of the system to complex working conditions and long-term operation, and realizes precise thermal management and intelligent control.

A water-cooled plate structure for cooling high-power-density power electronic devices and its design method based on SIMP topology optimization are disclosed. The structure includes a water-cooled plate body with an inlet, an outlet, and a flow channel region. The flow channel region includes an inlet guiding region and a parallel flow channel region. The inlet guiding region contains several double-elliptical guiding structures arranged in a needle-fin array. The parallel flow channel region consists of several dispersed independent flow channels, each corresponding to a heat source region of a chip. This invention, through the coordinated design of the inlet guiding region and the parallel flow channel region, achieves efficient heat dissipation and good temperature uniformity while ensuring low flow resistance, meeting the heat dissipation requirements of high-power electronic devices.

The utility model discloses a battery cell liquid cooling restraining tray, the battery cell liquid cooling restraining tray comprises a battery cell tray and a plurality of liquid cooling assemblies, the battery cell tray is used for bearing a plurality of battery cells; each liquid cooling assembly comprises a capsule piece and a water cooling plate, the water cooling plate is concaved inwards to form a groove, the periphery of the capsule piece is connected to the periphery of the groove of the water cooling plate in a sealing manner so as to define a deformable closed cavity, and the water cooling plate is arranged on the battery cell tray; the water cooling plate is provided with a liquid inlet connector and a liquid outlet connector, the liquid inlet connector and the liquid outlet connector are respectively communicated with the closed cavity, and temperature control liquid can be introduced into the liquid inlet connector, so that the capsule piece expands to extrude the battery cell and perform heat exchange. According to the technical scheme, the heat dissipation efficiency of the battery cell can be improved, the temperature uniformity of the battery cell is ensured, and energy consumption is reduced.

This utility model relates to the field of constant temperature testing technology for ice-water mixtures, and discloses a constant temperature testing device for ice-water mixtures, comprising: a cylindrical assembly, including a cylindrical stirring tank and four support legs fixedly welded to its bottom end, with an axially penetrating transmission hole on the upper part of the tank wall; a power system, including a servo motor fixedly installed on the outside of the stirring tank, a drive gear coaxially connected to the motor output shaft, and a waterproof protective cover covering the outside of the motor, the protective cover forming a sealed connection with the outer wall of the stirring tank; and a stirring assembly, including at least three sets of inclined stirring blades radially and evenly distributed at the bottom of the rotating platform. This constant temperature testing device for ice-water mixtures features efficient constant temperature control. The precise power ratio between the semiconductor refrigeration module and the volume of the stirring tank, combined with the forced convection of the inclined stirring blades, achieves rapid heat exchange, improving temperature uniformity by more than 40%. The composite structure of the annular insulation layer reduces heat loss by 60%, and its insulation performance is superior to traditional single-layer materials.

This invention relates to the field of baby product technology, specifically to a bottle warmer, comprising a body with a cavity for assembling a baby bottle. The cavity contains a first heating element and a second heating element. The baby bottle can be installed upright or upside down in the cavity. The first heating element heats the side walls of the bottle in either the upright or upside-down position. When the bottle is upright in the cavity, the second heating element heats the bottom wall of the bottle. When the bottle is upside down, the second heating element contacts the liquid inside the bottle for contact heating. This invention effectively solves the problems of uneven heating, low efficiency, and poor adaptability caused by a single heating method in existing technologies by using a first heating element to heat the side walls of the bottle and dynamically switching between bottom wall heating and liquid contact heating modes depending on the assembly direction.