186results about How to "Prevent dry burning" patented technology

The present invention relates to a kind of electric pressure cooker and electric rice cooker. It includes outer shell, pot cover, inner pot, heating disk and temperature detection and control device of electric heating pot. The inner pot is placed in the upper portion of heating disk, and said inner pot is a stainless steel single-layer structure. The temperature detection and control device of invented electroheating pot is formed from heat sensing element and control circuit of electroheating pot, and said heat sensing element is fixed on the heating disk.

The invention discloses a humidity detection device for an electric pressure cooker and a use method. The device comprises a cooker body and a top cover which covers the cooker body, wherein a base isarranged on the bottom of the cooker body, a heating plate is arranged on the bottom of the inside of the cooker body, a temperature sensor is arranged on the top of the heating plate, a heat conduction layer is arranged inside the cooker body, a clamping bulge is arranged at the top of the heat conduction layer, a liner is arranged inside the heat conduction layer, a sealing ring is arranged between the cooker body and the top cover, handles are arranged on the outer sides of the top of the cooker body, a controller is arranged on one side of the outer side of the cooker body, a water collecting box is arranged at the other side of the outer side of the cooker body, a hand shank is arranged at the top of the top cover, and a humidity digital meter is arranged on one side of the hand shank. The humidity detection device and the use method have the beneficial effects that 1, a humidity detector is used for detecting the humidity in the electric pressure cooker, so that the dry-burningcondition of the electric pressure cooker can be prevented; and 2, a humidity sensor made of the material such as ceramic is used, so that the sensing is sensitive, and the device can continuously work under the high-temperature and high-humidity environments.

The invention relates to a temperature control dry heating prevention electronic cigarette and a temperature control method thereof. The temperature control dry heating prevention electronic cigarette comprises a housing, a liquid storage device, an atomization assembly with an atomization chamber and a heating element, a power supply and a circuit control board with a smoking switch, wherein the liquid storage device, the atomization assembly, the power supply and the circuit control board are mounted in the housing in a sleeve mode. The circuit control board provided with a power management module and a temperature sensing unit, wherein the temperature sensing unit comprises a temperature sensor capable of sensing temperature signals of the atomization chamber and converting the temperature signals into temperature electrical signals to be transmitted the power management module, and the power management module determines and deals with the temperature electrical signals to generate control electrical signals for controlling the heating element to be connected to or disconnected to the power supply. The temperature control dry heating prevention electronic cigarette has the advantages of being capable of preventing the dry heating of the heating element of the atomization assembly for preventing the harmful gas and burning smell from being sucked into a human body and the harm to the health of the human body by using the temperature sensor to detect and control the temperature of the atomization chamber.

The invention discloses an electronic atomizing device and an atomizer thereof. The atomizer includes an atomizing assembly, a liquid storage cavity connected with the atomizing assembly in a liquid-leading mode and a mist channel which communicates with the atomizing assembly in an air-leading mode; the atomizer further includes an air-liquid balancing component and an air inlet opening which communicates with the air-liquid balancing component; the air-liquid balancing component includes a liquid storage groove with a capillary force function and an air-returning groove, one end of the air-returning groove communicates with the liquid storage groove, and the other end of the air-returning groove communicates with the air inlet opening; and the air-returning groove communicates with the liquid storage groove, and the liquid storage groove communicates with the liquid storage cavity. According to the atomizer, the air-liquid balancing component is arranged, air pressure in the liquid storage cavity can be balanced, liquid discharging is convenient, the phenomenon of burning to be dried is prevented, and at the same time, the problem that liquid leakage caused by unbalance of the air pressure is prevented.

The invention provides a control method of an electronic cigarette. The electronic cigarette comprises an atomization device and a battery device, wherein the atomization device comprises a liquid guide element and a heating element; the battery device comprises a wetting detection module, a control module, a storage module, a switch module and a power source module. The control method comprises the following steps: the wetting detection module detects a relevant physical quantity X and feeds back the relevant physical quantity X to the control module; the control module calculates according to corresponding relation data of relevant physical quantity X and wetting degree Q prestored in the storage module, so as to obtain the wetting degree Q; the control module judges the size relation of the wetting degree Q and a first threshold Q1; if Q is greater than or equal to Q1, the electronic cigarette operates continuously, and if Q is less than Q1, the control module sends a standby command to the switch module; the switch module disconnects the electronic connection between the power source module and the heating element. The invention further provides the electronic cigarette for applying the control method.

The invention discloses a method for water boiling of an electric kettle, and particularly relates to a control method suitable for water boiling in areas of different altitudes. The method comprisesthe following steps: a control circuit is used for controlling the power supply of a power supply circuit for an electric heating unit which emits heat to a kettle body; a temperature probe of the control circuit is used for detecting the current temperature of water in the kettle body; and in the event that the current temperature measured by the temperature probe does not lower during a certainperiod and maintains constant for a plurality of measuring times, or the current temperature measured by the temperature probe does not change for a plurality of measuring times in succession, the control circuit cuts off the power supply of the power supply circuit for the electric heating unit and withdraws. The method solves the trouble that the temperature of water boiling in different areas needs to be measured one by one and requires setting of the circuit; and simultaneously, the method also prevents the interference of the external world and can eliminate 'false boiling' phenomenon caused by constant temperature during a certain period during heating process, thereby being capable of improving the correctness of boiling control.

The invention relates to a dry burning preventing control method of a liquid heating device. The method comprises the following steps: detecting temperature of liquid in a liner in real time by virtue of a temperature sensor; then, transmitting the detected temperature of the liquid in the liner to a control unit; calculating a change rate of the temperature of the liquid in the liner by virtue of the control unit in accordance with the temperature, which is detected by the temperature sensor, of the liquid in the liner; acquiring a working condition of a heating body by virtue of the control unit, and calling a corresponding preset temperature change rate under a corresponding state in accordance with the acquired working condition; and controlling the heating body to stop working when the change rate, which is calculated by the control unit, of the temperature of the liquid in the liner is greater than or equal to the preset temperature change rate. With the application of the dry burning preventing control method provided by the invention, a dry burning phenomenon of the liquid heating device under various states can be effectively prevented. The invention also provides the liquid heating device and an electric vacuum flask.

The invention discloses a gas stove control method and a gas stove. The gas stove control method comprises the steps of acquiring a detection temperature of the bottom part of a pan body; calculatinga temperature change rate of the bottom part of the pan body according to the detection temperature, wherein the temperature change rate reflects rangeability of the detection temperature in a time period; comparing the temperature change rate with a first preset temperature change rate; when the temperature change rate is smaller than or equal to the first preset temperature change rate, acquiring a water-cooking drying-heating temperature corresponding to the current detection temperature; and when the detection temperature of the bottom part of the pan body is larger than or equal to the water-cooking dry-heating temperature, turning off the gas stove. According to the technical scheme provided by the invention, the setting accuracy of the dry-heating temperature is improved, and dry-heating is effectively prevented.

The invention discloses a vapor chamber with a supporting pillar and a groove composite structure. The vapor chamber comprises an upper covering plate and a lower covering plate, wherein a condensation end liquid suction core is disposed in a cavity of the upper covering plate; an evaporation end liquid suction core is disposed in a cavity of the lower covering plate; an annular cavity is disposedin the evaporation end liquid suction core; a supporting pillar is disposed at the center of the annular cavity; a groove structure is disposed in peripheries of the annular cavity; both the supporting pillar and the groove structure get contacted with the condensation end liquid suction core; and the upper covering plate and the lower covering plate are sealed, and a liquid filling hole is formed between the upper covering plate and the lower covering plate. Evaporation of a liquid working medium and collection of a condensation liquid are promoted by the cavity of the evaporation end liquidsuction core, and a liquid backflow channel is formed by the supporting pillar to reduce a pressure drop at the center; evaporation of the liquid working medium and backflow of the working medium toa center evaporation area are promoted by the cavity of the groove, so heat transfer performance is improved; a main backflow channel of the condensation liquid is formed by an entity part of the groove, so condensation and backflow are accelerated; and strength of the vapor chamber is ensured by the supporting pillar and the groove structure, so collapse and thermal deformation of the vapor chamber are avoided effectively.

The invention discloses a dish washing machine and a washing control method thereof, and belongs to the technical field of kitchen electric appliances, which solves the technical problem of false shutdown and alarming due to poor reliability of low water level detection in a dish washing machine in the prior art. The dish washing machine comprises a water tank, a water supply unit and a first water level sensor, wherein the water supply unit is used for supplying water to the water tank; the first water level sensor is used for detecting the low water level of the water tank. The washing control method of the dish washing machine comprises washing steps; the washing steps comprise a water level delay detection step: when the first water level sensor detects the low water level of the water tank, entering the water level delay detection; after set delay time T is reached, judging whether the actual water level of the water tank is in the low water level or not. The dish washing machine can be use to operate the washing control method.

The invention provides a steam generator and a water level control method thereof as well as a steam cooking device. The steam generator comprises a controller and a water pump, a water level probe, atemperature detector and a heating pipe which are connected with the controller, wherein the water level probe, the temperature detector and the heating pipe are arranged in a cavity of the steam generator. The water level control method comprises the following steps that if a starting signal is monitored, the water pump is triggered to inject water into the cavity; whether the water level signalsent by the water level probe is monitored in the preset time is judged; and if yes, a first water control cooking mode corresponding to the water level probe is started, and in the first water control cooking mode, the heating state of the heating pipe is controlled through the water level signal sent by the water level probe, so that the detection precision and the application range of the water level height of the steam generator are improved, the phenomenon of dry burning is avoided, and the user experience is improved.

The invention discloses a water replenishing system. The water replenishing system comprises a main water tank, a water supply tank and a water replenishing tank, and the main water tank is positioned in a humidifying equipment body. The water supply tank and the main water tank are communicated through a water supply pipeline, and the water replenishing tank and the water supply tank are communicated through a water replenishing valve. In an operation process, when quantity of water in the main water tank in the equipment is decreased, a communication system formed by the water supply tank, the main water tank and the water supply pipeline enables water in the water supply tank to enter the main water tank through the water supply pipeline to guarantee normality in operation of the humidifying equipment, so that dry burning of the humidifying equipment is avoided; when water in the water supply tank is in small quantity, the water replenishing valve is open to allow water in the water replenishing tank to enter the water supply tank, so that timely and efficient water replenishing for the humidifying equipment can be further guaranteed. The invention further discloses the humidifying equipment with the water replenishing system.

A small-sized USB (universal serial bus) humidifier comprises a cup cover, a cup and a cup base. A plurality of mist outlets are arranged on the cup cover, a rectangular mist collecting cavity is arranged inside the cup cover, an ultrasonic atomizer is arranged on the lower portion of the mist collecting cavity, and the lower portion of an atomizing sheet of the ultrasonic atomizer is connected with an absorbent cotton bar. A water filling nozzle is arranged on the upper portion of one side of the cup, a handle is arranged on the other side of the cup, a power-off device is arranged below the handle on the cup, one end of the power-off device is connected with a sensor on the lower portion of the cup, and the other end of the power-off device is connected with a USB interface. Besides, the cup is mounted on the cup base. The small-sized USB humidifier is simple in structure, small and practical, the cup provided with the handle is anti-scalding and convenient to move, the power-off device is used for automatically powering off the humidifier when no water remains in the humidifier, dry heating is prevented, and power is saved, so that the humidifier is safe.

The invention relates to an atomization core, an atomizer and an electronic atomization device. The atomization core comprises a porous ceramic matrix and a heating element, wherein the porous ceramicmatrix comprises a liquid guide layer and a heat conduction layer; the heat conductivity of the heat conduction layer is greater than the heat conductivity of the liquid guide layer; the permeabilityof the liquid guide layer is higher than the permeability of the heat conduction layer; and the heating element is attached to the heat conduction layer. Due to the fact that the heat conduction layer is arranged on the liquid guide layer and the heat conductivity of the heat conduction layer is much higher than the heat conductivity of the liquid guide layer, when the heating element works, heatgenerated by the heating element is rapidly conducted to each area of the heat conduction layer through the heat conduction layer, so that the dry burning phenomenon caused by the local high temperature of the porous ceramic matrix is effectively prevented. Meanwhile, the permeability of the heat conduction layer is lower than the permeability of the liquid guide layer, so that the heat conduction layer has a relatively good liquid locking function for liquid and the liquid is prevented from leaking from the surface of the heat conduction layer.

The invention discloses a steam mop which comprises a steam brush head at the lower part, and a machine body arranged on the upper part of the steam brush head in a manner of overturning in multiple directions, wherein the machine body is internally provided with a steam supply mechanism used for providing stream for the steam brush head; the steam supply mechanism comprises a water tank and a steam generator communicated with the water tank; the water tank is position at the upper end of the machine body; the water tank is provided with a handle, held by a user, of the steam mop; the water tank is provided with a control valve component capable of forming passages in the positive and negative directions; the water tank is arranged at the upmost end of the whole steam mop and is taken as the handle operated by the user, so that the whole mop is smaller in size and convenient in transportation and storage; and when the mop works at any inclination angle, water in the water tank can be prevented from entering the steam generator on the premise that water exists in the water tank, a dry burning phenomenon can be prevented, efficient and effective cleaning work can be ensured, and the steam mop is suitable for being popularized and used in household stream mops.

The invention relates to the technical field of kitchen appliances, in particular to an instant water dispenser. A heating device of the instant water dispenser is arranged at the lower part of a water vapor separating box; a water inlet end and a water outlet end are both communicated with the water vapor separating box; a communicating passage between the water inlet end and the water vapor separating box is provided with a control valve; the control valve controls waterflow to uniaxially flow to the water inlet end. After the heating device stops heating, water stored in the water vapor separating box can be supplemented to a space, which is lack of water due to great boiling water vaporization caused by waste heat, of the heating device by virtue of the control valve, and the heating device is cooled by the water, so that the heating device is prevented from being burnt out by high temperature, the service life of a product is prolonged, and the maintenance cost is lowered.

The invention relates to a heat energy water circulating system for using water steam to push water circular flowing to heat transfer, in particular to the heat energy water circulating system for hydrothermal blankets, pads, ondol plates and thermal treatment products, and aims to provide the heat energy water circulating system for hydrothermal blankets, pads, ondol plates and thermal treatment products capable of excellently returning water (supplying water into a heating container) in a working state. The heatingcontainer is communicated with a water outlet connecting pipe; the water outlet connecting pipe is communicated with a cooling pipe; the cooling pipe is communicated with a water inlet connecting pipe; the water inlet connecting pipe is communicated with a water storage tank; and the water storage tank is communicated with the heating container through a water return one-way valve. The heat energy water circulating system is characterized in that a water supply chamber is formed between the water storage chamber and the heating container; and the water storage tank is communicated with the heating container through the water supply chamber by the water return one-way valve.

The invention relates to the field of household appliances, in particular to a simple humidifier. The humidifier consists of a pure water box, a steam generator, a high-temperature and high-humidity test box, a water storage box and a water supplementing electromagnetic valve, wherein the pure water box is connected with the water storage box through the water supplementing electromagnetic valve, and the water storage box is sequentially connected with the steam generator and the high-temperature and high-humidity test box. The humidifier has the advantages that a sub water box is specially designed, a water pump pumps circulation water from the water storage box and injects the water into the sub water box, and the sub water box is communicated with a heating tank through a bottom water pipe, so that when the water level in the sub water box meets the requirements, the water level in the heating tank also meets the requirements, in addition, the water consumption in the steam generator can be supplemented in time, and the occurrence of dry burning phenomenon is prevented.

The invention discloses an ultrasonic salt bath combined cleaning machine for mechanical parts for a test. The ultrasonic salt bath combined cleaning machine comprises an upper portion and a lower portion. The upper portion comprises a sealing cover. The lower portion comprises an inner cleaning tank and an outer cleaning tank, wherein a cooling water tank is further arranged between the inner cleaning tank and the outer cleaning tank. A water inlet channel which is communicated with the inner cleaning tank, the cooling water tank and the outside world in sequence is arranged at the bottom of the outer cleaning tank, a water outlet channel which is communicated with the cooling water tank and the outside world is arranged on the side of the outer cleaning tank, and a plurality of ultrasonic transducers are symmetrically arranged on the side of the outer cleaning tank. An inclined salt discharging outlet is formed in the bottom of the inner cleaning tank; a plurality of semi-heating type electric heating tubes are symmetrically installed at the bottom of the inner cleaning tank, and the working temperature of the ultrasonic salt bath combined cleaning machine can be increased to 300-350DEG C through the semi-heating type electric heating tubes; the semi-heating type electric heating tubes generate heat only through the bottoms of the semi-heating type electric heating tubes, and the heat is used for reducing corrosion caused by high-temperature molten salt on the semi-heating type electric heating tubes.

The invention provides an anti-dry-burning dish washing machine. The dish washing machine comprises a heating device, a temperature controller, a main control chip and a peripheral hardware circuit; the peripheral circuit comprises a detection circuit for detecting the on / off state of the temperature controller and a protection circuit for disconnecting a main circuit connected with the heating device; the main control chip is connected with the detection circuit and the protection circuit so that the main circuit can be disconnected through the protection circuit after the detection circuit detects that the temperature controller is switched off. By detecting the on / off state of the temperature controller, a rapider response can be made to dry burning; once the temperature controller is switched off, the heating device is powered off, and the main control chip controls the protection circuit to disconnect the main circuit; when the temperature controller recovers, as the main circuitis still disconnected by the protection circuit, the heating device cannot be powered on, and dry burning is effectively prevented. Besides, the detection accuracy is high, and the anti-dry-burning reliability is also more satisfactory.

The embodiment of the invention discloses a food processor. The food processor can comprise a heating cup, a heating device and a main control unit, and the heating device is used for heating the heating cup; an over-temperature protection device is arranged on the heating cup, and the food processor is still provided with a temperature sensor; the temperature sensor is connected with the main control unit, which is used for detecting the temperature of the heating cup; the main control unit compares the collected temperature of the heating cup with a preset first temperature threshold value T1; when the temperature of the heating cup is greater than or equal to the preset first temperature threshold value T1, the heating device is controlled to stop heating; the first temperature threshold value T1 is decided by the protection temperature T2 of the over-temperature protection device, and the difference value T2-T1 of the protection temperature T2 and the first temperature threshold value T1 meets that T2-T1 is greater than or equal to 40 DEG C. The food processor solves the problem that the over-temperature protection motion of a fuse link makes the food processor not work normally, dry heating is avoided, the failure rate is reduced, and the user experience is improved.

The invention relates to the technical field of electronic cigarettes, in particular to an electronic cigarette atomizer temperature compensation circuit and a control method thereof. The circuit is arranged on a chip and connected with an atomizer and a power supply, and atomization silks are contained in the atomizer; the impedance of the atomization silks is varied with the temperature; and a circuit structure further comprises a calibration circuit module, an ADC collecting module and a PID control module. According to the electronic cigarette atomizer temperature compensation circuit, the critical atomization voltage and the process deviation voltage are removed simultaneously, thus the electronic cigarette atomization temperature is controlled more accurately, meanwhile the electronic cigarette atomization temperature can be accurately controlled according to atomization points of tobacco tar of different types, thus an electronic cigarette is sufficiently atomized, dry burning and insufficient atomization are avoided, and the taste of the electronic cigarette is improved.

The embodiment of the invention provides a control device and a control method used for a pressure cooking utensil, and the pressure cooking utensil, and belongs to the technical field of pressure cooking utensils. The control device comprises a detecting device and a control device, wherein the detecting device is configured to detect the working parameters of the pressure cooking utensil; the control device is configured to judge that whether the pressure cooking utensil is in the heating dynamic balance state or not according to the working parameters, wherein the heating dynamic balance state is the state under which no unsaturated steam exists in an inner pot; and if the pressure cooking utensil is in the heating dynamic balance state, the heat power of the heating device is controlled to be reduced. Therefore, the reliable pressure control for the pressure cooking utensil is compensated, the condition of overpressure or underpressure caused in the pressure control process is solved, meanwhile, the water loss in the heating process is also avoided, and thus the occurrence of the dry-burning phenomenon is completely eradicated.

The invention discloses a concrete steam curing box comprising a test piece box and a steam delivery device. The steam delivery device comprises a heating water tank and a water supply device. The heating water tank is connected with the test piece box through a first pipeline. The water supply device comprises a water supply unit and a water supply box. The water supply unit is connected with the water supply box through a second pipeline. A water level switch is disposed inside the water supply box. The water supply box is connected with the heating water tank through a U-shaped pipe. Two ends of the U-shaped pipe are connected with the bottom of the water supply box and the bottom of the heating water tank. The water supply box in the steam delivery device is connected with the heating water tank through the U-shaped pipe, the U-shaped pipe prevents boiling water in the heating water tank from reflowing to the water supply box through a liquid seal, the water level switch is protected from heat damage, dry heating of the heating water box can also be prevented, and damage of the heating water tank is avoided.

The invention discloses an instant solar heating system which is characterized in that: a hot water storage tank is provided with a water inlet main pipe connected with an external pipe network; a medium pipeline is arranged between the hot water storage tank and a solar panel heating assembly; a medium pipeline is arranged between the hot water storage tank and a preheating assembly; heat transfer media are arranged in the medium pipelines and circulates between the hot water storage tank and the solar panel heating assembly as well as between the hot water storage tank and the preheating assembly respectively; the hot water storage tank is connected with a water inlet pipeline of the gas instant heating assembly through a water outlet pipe; a water outlet pipeline of the gas instant heating assembly is connected with a geothermal system and a heating system; and the geothermal system and the heating system are connected with the hot water storage tank through a water return pipe. The instant solar heating system disclosed by the invention comprehensively utilizes various energy sources to heat water, realizes fast heating and large heated water quantity, saves energy, is available all day long, safe and environment-friendly, effectively meets the using needs of people, and improves the quality of life.

The invention discloses a temperature measuring device, a temperature measuring system and a control method of a cooking appliance. The temperature measuring device is used for a cooking appliance, and comprises a mounting part, a first temperature measuring module and a first communication module; the mounting part is used for detachably mounting on the side wall of the pot arranged on the cooking appliance; the first temperature measuring module is fixedly connected with the mounting part, and is used for detecting the near-bottom temperature of a preset height position of the bottom wall ofthe pot body; the first communication module is electrically connected with the first temperature measuring module and is used for sending the near-bottom temperature to the cooking appliance. The invention also discloses a control method of a cooking appliance. When the near-bottom temperature meets the preset condition, the control module of the cooking appliance controls the heating device tostop heating. The technical scheme can improve the accuracy of the detection of the temperature of the cooking appliance, and prevent the dry burning.

The invention relates to the technical field of electronic atomization, in particular to an electronic atomizer which comprises a main machine, and the main machine comprises a shell, a matching slot formed in the shell, an electric control assembly arranged in the shell and located below the matching slot and a power source installed on one side of the shell and electrically connected with the electric control assembly. The atomizer comprises a shell, an oil storage cavity formed in the shell, an oil guide seat arranged in the shell and communicated with the oil storage cavity, an atomization assembly connected to the oil guide seat and a sealing base, the sealing base is provided with a first electrode, and the first electrode makes contact with the atomization assembly; the oil storage cotton and the oil guide cotton are fixed through cooperation of the first fixing elastic piece and the second fixing elastic piece, the atomization piece is also directly arranged on the second fixing elastic piece, and in the using process, structural connection is stable, installation is matched with the atomization piece, oil guide is stable, and the atomization effect is good.