1050results about How to "Accurate temperature control" patented technology

The invention discloses an efficient energy saving electro heating multipurpose cooker utilizing a new method of accurate temperature controlling and healthy cooking. The technical scheme of the invention is as follows: the outside surface of the cooker body is provided with an ambient temperature sensor; the base of the cooker is provided with an inner pot temperature sensor; the cooker body, thecooker cover and the cooker base are all set to be closed efficient heat insulation interlayers; the closed heat insulation interlayer on the cooker base is arranged between the casing of the cookerbase and the electro heating device; a hallow cavity is arranged between the casing of the cooker base and the closed heat insulation interlayer; and the purposes of energy saving, discharge reducingand healthy cooking can be realized by setting standard control values such as ambient temperature or temperature drop, cooking/steaming temperature and time and the like by an automatic control device and by comparing the ambient real-time temperature or temperature drop with the inner pot real-time temperature to control the power on and power off of the electro heating device. The efficient energy saving electro heating multipurpose cooker can be used for cooking rice, cooking congee, cooking soups and steaming food; compared with various electro rice/congee/soup cooker in the prior art, the invention can save electricity by 30%-50% and can be widely used in families, dining halls and catering enterprises in cities and towns.

The invention relates to the technical field of electric pressure cookers, in particular to an electromagnetic heating electric pressure cooker. The electromagnetic heating electric pressure cooker structurally comprises a shell, an inner pot and an outer pot, wherein a pressure switch and a control device are arranged at the bottom of the outer pot; an annular heating disk component and a sensor component are arranged between the inner pot and the outer pot; a through hole is formed in the middle of the heating disk component; the sensor component is mounted in the through hole; the heating disk component comprises an electromagnetic heating outer disk, a radiating fan, an electromagnetic heating wire coil, an electromagnetic coil, a plurality of magnetic strips, an electromagnetic heating disk cover and an anti-magnetic disk; the sensor component comprises a fixed frame, a spring arranged on the fixed frame in a sleeving manner, a sensor cap and a thermistor; and the thermistor is electrically connected with the control device. Compared with the prior art, the electric pressure cooker has the advantages of simple structure, high radiating performance, capacity of precisely controlling pressure and temperature and long service life, truly realizes application of an electromagnetic heating technology to the electric pressure cooker, and has a wide market prospect.

The invention provides an air conditioning compressor frequency control method. The method comprises that an air conditioning detects the indoor temperature T [indoor], wherein Pn= T [set]-T [indoor]; Pn is compared with a preset temperature difference, the air conditioning runs at the highest frequency when the temperature difference is large, and the work frequency of the compressor is corrected through an increment PID algorithm when the temperature difference is small, accordingly, rapid refrigeration and heating can be achieved. By the aid of the method, the frequency is controlled to be reduced stably through the PID algorithm, the temperature is kept at a 0.5-degree static difference and is kept at the set temperature finally, the problems of stopping caused by temperature over-regulation can be solved, the air conditioning runs stably, and the user experience is good; when the set temperature and the air speed are changed, the compressor running frequency can respond to changes of the temperature timely, and the frequency is improved and reduced effectively; moreover, the frequency can be adjusted according to the environment temperature, so that the air conditioning stable running can be guaranteed, and the temperature can be adjusted rapidly.

The invention relates to a hybrid-energy thermostatic control water heater, which belongs to the technical field of water heaters. The water heater comprises a gas heating part, an electric heating part and a control circuit, wherein the control circuit comprises an electric energy output control device; the electric heating part consists of a water flow channel and an electric heating device arranged in the water flow channel; the gas heating part and the water flow channel of the electric heating part form a series or parallel flow passage; an ultimate water outlet of the flow passage is provided with a temperature sensor; the output end of the temperature sensor is connected with the signal input end of the control circuit; the signal input end is connected with the controlled end of the electric energy output control device through the control circuit; and the output end of the electric energy output control device is connected with the electric heating device. The water heater has the advantages that the water heater is very sensitive and accurate in temperature regulation, and can effectively guarantee the temperature constancy of effluent water.

The invention provides an electric car power battery thermal management system. The electric car power battery thermal management system comprises a thermoelectric plate heat exchanger, a radiator, a fan, a battery pack, a kettle, a first circulating water pump, a second circulating water pump and connecting pipelines. The thermoelectric plate heat exchanger comprises a first fluid channel, a second fluid channel, a first fluid inlet, a second fluid inlet, a first fluid outlet, a second fluid outlet, a thermoelectric module, a positive electrode and a negative electrode. One closed and independent fluid circulating system is formed by the thermoelectric plate heat exchanger, the battery pack, the kettle, the first circulating water pump and one connecting pipeline. The other closed and independent fluid circulating system is formed by the thermoelectric plate heat exchanger, the radiator, the fan, the second circulating water pump and the other connecting pipeline. The two closed and independent fluid circulating systems can circulate two kinds of fluid at different temperatures to cool or heat a power battery. The thermoelectric plate heat exchanger is adopted for heating and refrigerating the battery pack, a heating mode or a refrigeration mode can be switched only by switching the positive electrode and the negative electrode of a power source of the thermoelectric plate heat exchanger, and the electric car power battery thermal management system is of a practical and reliable heat management structure.

The invention relates to a quick variable temperature miniature thermostatic sample cell, which is made of metallic material, an opening is formed in the center of the metallic material and is used as a sample cavity, a light through hole is formed on a metallic shell along the center of the sample cavity, a transparent material is embedded in the light through hole, a Peltier temperature control element is glued on the non-light surface of the metallic material, a groove is arranged on the bottom of the metallic shell for laying aside a temperature sensor, the coat of the metal shell has a heat insulation outer frame, the center of a base connected with the bottom of the heat insulation outer frame is provided with a miniature motor, a small magnet is arranged at the edge of the leaf of a spiral leaf on the shaft of the motor, a stirring magneton is laid aside at the bottom in the sample cavity, the inner wall of the sample cavity and the outer faces of the sensor and the stirring magneton is carried on chemical inertia processing. The invention replaces the water heat conduction with the metal, and changes the system temperature with a thermo-element; the sensor directly observes the temperature of the sample, the heat conduction is speeded up by a miniature electromagnetic stirring system has accelerated; the invention is characterized in having small volume, accurate the temperature measurement, quick variable temperature, and good stability, etc, being able to be placed in analytical instrument such as spectrophotometer, etc., and realizing the quick variable temperature and the accurate thermostatic control of the temperature of the sample.

The invention relates to an intelligent temperature control cup which comprises a cup body and a cup cover. The cup body is sealed by the cup cover. The cup body comprises an inner container and an outer shell. Heat insulation materials and phase-changing materials are arranged between the inner container and the outer shell. Grooves are formed in the outer wall of the inner container in the radial direction at intervals. Each groove is filled with heat insulation materials. A phase-changing material layer is arranged between the inner container and the outer shell in a sleeved mode. Grooves are evenly distributed in the radial direction of the inner edge column face of the phase-changing material layer at intervals. Each groove is filled with heat insulation materials. A rotating ring is coaxially and fixedly arranged on the outer edge column face of the phase-changing material layer. According to the rotating ring, the phase-changing material layer rotates in the axial direction, and when the phase-changing material layer rotates to the position where the heat insulation materials arranged in the phase-changing material layer grooves in a filling mode and the heat insulation materials arranged in the inner container grooves in a filling mode are crossed and are not overlapped, the heat insulation materials can right seal and surround the inner container. According to the temperature control cup, temperature controlling and preservation can be carried out at multiple points and multiple time periods, and the intelligent, convenient, quick and human-friendly designing concept is reflected.

The invention discloses a whirl etching system for large-area silicon chip and a method thereof, comprising an autorotation etch fixture, a revolution arm, an etch bath, a de-ionized water rinse bath, a bubbling agitating device, a condensing and temperature control device; the etch fixture is installed on the arm for uniform autorotation driven by a rotating motor; the etch bath contains chemical corrosive liquid; the bubbling agitating device is located at bottom of the bath; the condenser pipe and the temperature control thermoelectric couple are installed at side wall of the etch bath; the de-ionized water rinse bath is located adjacent to the etch bath; when etching the silicon chip, the arm drives autorotation fixture into dip into the chemical corrosive liquid in the etch bath, while the arm undergoes uniform revolution; after that, the autorotation fixture driven by the arm is dipped into the de-ionized water rinse bath for cleaning; controlling the temperature of the corrosive liquid, and mixing the corrosive liquid evenly by the agitating device, so as to ensure that the concentration, the temperature of the corrosive liquid is substantially uniform, and that etch speed on the surface of the silicon chip is consistent, so as to enhance uniformity of silicon chip etching.

The invention relates to the field of liquid heating, in particular to a dry heating prevention method of a liquid heating device and a heating device using the dry heating prevention method. The dry heating prevention method comprises the following steps that a temperature sensing part is used for detecting the temperature of the surface of a heating element and then transfers a temperature signal to a control unit, and the control unit calculates a temperature change rate of the surface of the heating element by two or more temperature spots so as to judge the working state of the heating element. Compared with the traditional method for judging the working state of the heating element by a single-spot temperature, the dry heating power-off time is not affected by the response delay of a temperature controller or a temperature sensor, so that the dry heating prevention method of a liquid heating device is more accurate in temperature control and can effectively prevent the heating element from being in a dry heating state for a long time. In addition, the temperature sensing part such as a thermistor or a thermocouple is used for directly detecting the temperature of the surface of the heating element so that the temperature sensing is fast and sensitive; and compared with the traditional metal temperature-sensing piece, the response delay time is greatly reduced so as to prevent the temperature of the heating element from being over-high and prolong the service life of the heating element.

The invention discloses an intelligent cooking method and an intelligent cooking type pot and stove combination product. The intelligent cooking method comprises the following steps that the user input is received so as to determine a preset dish, and an intelligent menu is read according to the preset dish; if the preset dish is read from the intelligent menu, an intelligent stove is controlled to adjust the gas flow according to a corresponding relationship between the cooking time and the temperature, and a user is reminded to execute corresponding cooking operation according to the corresponding relationship between the cooking time and the cooking operation instruction; if the preset dish is not read from the intelligent menu,, temperature information of a temperature control pot is collected after an collection instruction is received; the temperature information and the collection time are subjected to polynomial fitting so as to obtain the corresponding relationship between thecooking time and the temperature; and the cooking operation instruction input by the user is received, and the instruction receiving time and the cooking operation instruction are stored in an associative mode as the corresponding relationship between the cooking time and the cooking operation instruction. According to the intelligent cooking method and the intelligent cooking type pot and stovecombination product, the temperature and cooking operation information of each time node in cooking are recorded so as to form the intelligent menu, in the follow-up cooking process, the cooking duration and degree are controlled and the cooking operation of the user is guided according to the intelligent menu, and therefore the problems that the user cannot do the cooking and cannot do the cooking well can be solved.

The invention relates to the photovoltaic industry and in particular relates to a method for testing the rheological property of a conductive slurry. The method comprises the following steps: calibrating the instrument accuracy; setting a temperature; selecting and calibrating a clamp; loading and testing a sample; and determining the rheological property. Compared with a viscometer, the test method provided by the invention has a measurement accuracy which is one order of magnitude higher than that of the viscometer, needs a few samples, can be used for realizing accurate temperature control and quick experiment operations, and can represent the rheological property of the conductive slurry more comprehensively.

The invention discloses a fan heater control method and device, a fan heater and a storage medium. The method comprises the steps that the ambient temperature is sampled according to the preset period; the temperature value obtained after sampling is compared with the preset temperature value, and a temperature control signal is obtained; and the heating body powder and the fan rotating speed are adjusted according to the temperature control signal. By the adoption of the technical scheme, the temperature rising speed is increased, the control accuracy is improved, and the control frequency is lowered.

The embodiment of the invention discloses a variable-frequency air conditioner control method and device. The method comprises the steps that under a first energy saving mode, the indoor temperature and the outdoor temperature are collected according to a first preset frequency; whether the indoor temperature and the outdoor temperature meet preset temperature conditions or not is detected; if yes, whether the duration that the indoor temperature and the outdoor temperature meet the preset temperature conditions reaches first preset time or not is detected; and if yes, a second energy saving mode is started, and a variable-frequency air conditioner is controlled to operate according to operation parameters under the second energy saving mode. According to the variable-frequency air conditioner control method and device, the variable-frequency air conditioner can select the proper energy-saving operation parameters according to the change of the indoor temperature and the outdoor temperature, accurate temperature control is achieved while energy is saved, the user comfort is improved, especially under the conditions that after a user falls asleep at night, both the energy consumption amount and the amount of generated heat are low, more energy is saved through the variable-frequency air conditioner, and the user feels comfortable.

The invention discloses a graphene heat-emitting film assembly with a single-side far infrared radiation function and a bed warmer based on the graphene heat-emitting film assembly. According to the graphene heat-emitting film assembly of the invention, one surface of a graphene heat-emitting film layer, which is far away an electrode layer, is provided with a far infrared reflecting layer. The graphene heat-emitting film assembly disclosed by the invention has an excellent infrared reflection effect and is more energy-saving; the bed warmer based on the graphene heat-emitting film assembly has the advantages of good heat-emitting stability, high temperature rise speed, uniform heat emission and soft material, and can realize the physical therapy functions of promoting blood circulation, repairing cells, preventing diseases and the like..

The invention relates to a high-power semiconductor laser constant-temperature welding device which comprises a laser power supply, a programmable logic controller, a laser module, an optical fiber, a laser focus head, an infrared high-temperature detector, a charge coupling apparatus, a display and a bottom plate. The welding device is characterized in that the programmable logic controller is connected with the laser power supply, the high-temperature detector and a touch screen respectively; the optical fiber is connected with the laser module and the laser focus head; the charge coupling apparatus is connected with the display; a part of apparatus are fixed on the bottom plate; and the high-temperature detector, the charge coupling apparatus and the laser focus head are assembled. The device has the advantages of compact structure, accurate temperature, convenient installation, good control performance, easy industrial batch production and the like, and can be widely applied to the fields of laser material processing, laser printed circuit board welding and the like.

An automatic temperature rise control device for a crankshaft and bearing bushes of a mechanical press comprises a machine body, the crankshaft, a first supporting sleeve, a second supporting sleeve, a connecting rod cover, a connecting rod, a first shaft end bearing bush, a second shaft end bearing bush and a connecting rod bush; an air circuit temperature control system and a temperature detection and control system are arranged on the machine body; the air circuit temperature control system comprises an air cooling machine arranged on the machine body; the air cooling machine is connected with an air distributor; the air distributor communicates with spiral grooves formed in inner walls of the first supporting sleeve, the second supporting sleeve, the connecting rod cover and the connecting rod through multiple air inlet pipes; the temperature detection and control system comprises a controller and multiple temperature sensors for detecting the temperatures of the first shaft end bearing bush, the second shaft end bearing bush and the connecting rod bush; the temperature sensors are connected with the controller through circuits; and the controller is connected with the air cooling machine through a circuit. The control device has the advantages that the working temperature of the bearing bushes is automatically controlled, the design clearance is reduced, the service life of the crankshaft and the service life of the bearing bushes are prolonged, the operation speed and precision of the crankshaft is improved, the production efficiency is high, the product quality is high, and the like.

The invention discloses a test method of metal hydride thermal adsorption and desorption of hydrogen cycle life and a special device thereof. The test device consists of a gas cycling system, a sample chamber heating and cooling system and a computer data collection and control system. The gas cycling system provides a vacuum environment and high-purity hydrogen source to the test system; the sample chamber heating and cooling system rapidly and circularly heats and cools the test sample; and the computer data collection and control system controls a heating and cooling program to run and controls the opening and closing of relevant electromagnetic valve and electric valve and instantly collect the pressure and temperature signal of the system. While completing the test of the cycle of the metal hydride thermal adsorption and desorption of hydrogen, the system also can test the alloy adsorption and desorption hydrogen performance such as PCT curve and dynamics curve and the constant-temperature adsorption and desorption hydrogen service life in situ.

The invention discloses an air conditioner spare machine opening control method and device and a computer readable storage medium. The method comprises the steps of obtaining failure level parameters,air returned temperature parameters, compressor accumulation running duration, draught fan running stop duration and the unit address of all air conditioner spare machines in an air conditioner cluster under the condition that the air conditioner spare machines need to be opened; according to the failure level parameters, the air returned temperature parameters, the compressor accumulation running duration, the draught fan running stop duration and the unit address of all air conditioner spare machines, determining the air conditioner spare machines, preference to be opened, in the all air conditioner spare machines.

The invention discloses a low temperature refrigerator, comprising a refrigerator body, a refrigerator door, an evaporator and a semiconductor refrigeration plate. A refrigerating chamber and a freezing chamber are respectively defined in the refrigerator body, the front side of the refrigerator body is provided with an opening, the refrigerator door is installed on the refrigerator body and used for opening and closing the opening, the evaporator is arranged in the back wall of at least one of the refrigerating chamber and the freezing chamber, the hot end of the semiconductor refrigeration plate is in contact with the evaporator, and the cold end is located in at least one of the refrigerating chamber and the freezing chamber. In the low temperature refrigerator, by using the high temperature difference characteristics at two ends of the refrigeration plate, a refrigerating system of the refrigerator is used for dissipating heat at the hot end of the refrigeration plate, thereby achieving the purpose of low temperature at the cold end of the refrigeration plate, and cooling the temperature in a low temperature chamber to 40 to 50 DEG C below zero. Therefore, the low temperature refrigerator has low production cost, small refrigerator volume, and simplified structure of the refrigerating system, can achieve accurate temperature control and has wide adaptability.

The invention relates to a daily used vacuum cup, in particular to a compound-phase variable-speed cooling constant-temperature cup. The solid-liquid compound-phase variable-speed cooling constant-temperature cup comprises a cup lid and a cup body, wherein the cup lid is in sealed connection with the cup body, the cup body comprises an inner cup wall, a middle cup wall and an outer cup wall, the internal cavity of the inner cup wall forms a beverage containing cavity, the airtight cavity between the inner cup wall and the middle cup wall is filled with inorganic hydrous salt compound phase change liquid, the airtight cavity between the bottom of the inner cup wall and the bottom of the middle cup wall is designed into a phase change alloy rapid-cooling interlayer, and the phase change alloy rapid-cooling interlayer is provided with built-in low-melting-point phase change alloy. In a solid-liquid compound-phase variable-speed cooling microwave heating constant-temperature cup, the airtight cavity between the inner cup wall and the middle cup wall is filled with inorganic hydrous salt compound phase change liquid to form a phase change liquid heating cavity, one or more distributed rod-like microwave antennae are arranged in the phase change liquid heating cavity, and a solid-state microwave power source, a power supply part and a control system are arranged in a cup base.

The invention belongs to the field of cold chain transportation, and particularly relates to a novel solid phase change cold storage agent for cold chain transportation at the temperature of 2-8 DEG C and a preparing method and application of the novel solid phase change cold storage agent. The solid phase change cold storage agent comprises, by mass percent, 84.5%-90.6% of n-tetradecane, 8.8%-14.9% of thermoplastic elastomer SEBS and 0.6% of antioxidant. The solid phase change cold storage agent is transparent gel and is in a solid state before and after phase change, and the problems of inorganic cold storage agent supercooling, phase separation and liquid phase leakage do not need to be worried. The phase change temperature of the solid phase change cold storage agent ranges from 4 DEG C to 5 DEG C, and the phase change latent heat ranges from 170 J/g to 200 J/g. The solid phase change cold storage agent has the beneficial effects that temperature control is accurate, and the temperature can be kept stable for a long time; the cold storage agent serves as a cold source, the stable and accurate temperature environment of 4-5 DEG C can be provided for biological medicine cold chain transportation, and the cold storage agent is extremely suitable for meeting the requirement for cold chain transportation of 2-8 DEG C in the biological medicine field.