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65results about How to "Control heating power" patented technology

Probe system multi-filed loading device

The invention discloses a probe system multi-filed loading device, which comprises a multi-field loading box, a horizontal mobile platform, a cantilever rod, a fixed support with a slide rail, a transmission shaft, a servo motor, a probe and a force sensor, wherein the multi-field loading box is fixed on the horizontal mobile platform, a sample is fixed on a box bottom, a perform hole is sealed through a sealing rubber ring, the top portion of the probe is contacted with the sample, the bottom portion of the probe is connected with the force sensor, the force sensor is arranged in the front end of the cantilever rod, and is not contacted with the sealing rubber ring, the servo motor drives the transmission shaft to rotatably control the probe to vertically move, and achieves to load a force filed and a deformation field, the outer portion of the servo motor can be connected with a vacuum pump and a humidity controller, and a box body is embedded into a ring-shaped heating bar and an iron bar which twines a copper wire, is used to load a heating field and a magnetic filed, and loads an optical field through a panel. The probe system multi-filed loading device can supply load of vacuum degree, humidity, the force field, the deformation filed, an electric field, the heating field, the magnetic filed and the optical field, and is strong in anti-jamming ability and reliable and accurate in test result.
Owner:PEKING UNIV

Electric heating device and system

The invention discloses an electric heating device and system. The device comprises a heating body, two electrodes and a ceramic shell, wherein the two electrodes are connected to the two ends of the heating body, a cavity is formed inside the ceramic shell, the heating body is placed in the cavity, a notch which penetrates through the thickness direction of the ceramic shell and is communicated with the cavity is formed in the top of the ceramic shell, and the heating body is of a spiral structure. Due to the position of the spiral structure, the spiral axis of the spiral structure is approximately perpendicular to the extending direction of the notch from top to bottom, and a pair of twisted optical fibers extending in the thickness direction of the ceramic shell can enter the position between two spiral rings of the spiral structure downwards from the notch. Due to the facts that the electric-heating mode is adopted in the electric heating device, the heating body is of the spiral structure and is clamped by the ceramic shell, and the optical fibers are heated between the two spiral rings of the spiral structure, heating is even and stable, and the defect that flame heating is not stable or even enough is overcome. Meanwhile, temperature heat stress and structural heat stress are distributed reasonably, and positions with stress concentration do not exist.
Owner:CENT SOUTH UNIV

Control method for induction cooker and induction cooker

The invention provides a control method for an induction cooker and the induction cooker. The induction cooker comprises an induction cooker body and a pot body with a pot cover; the pot cover is provided with a metal outer edge; a first control panel and a first temperature sensor are arranged in the induction cooker body; and a second control panel and a second temperature sensor are arranged on the pot cover. The control method comprises the steps that the second control panel detects the electric potentials of any two points on the metal outer edge of the pot cover and judges whether a potential difference exists between any two points or not; if the potential difference exists, that the pot cover is on the pot body is judged, and the second control panel sends a first indication message to the first control panel; and the first control panel controls the induction cooker body to adjust the heating power of the induction cooker body with the temperature detected by the second temperature sensor according to the received first indication message. According to the control method for the induction cooker and the induction cooker, the position state of the pot cover can be judged through the electric potentials of the metal outer edge of the pot cover, and therefore the phenomenon that the external environment influences the judgment can be avoided, and accurate control on the cooking process can be realized.
Owner:ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD

Induction heating cooker

Provided is an induction heating cooker which prevents overheating of a pan whose bottom is warped to protrude and a pan having a thick bottom. The induction heating cooker is provided with a heatingcoil (2) for inductively heating a cooking container; an inverter circuit (7) for supplying the heating coil with a high frequency current; an infrared sensor (3) for detecting an infrared ray radiated from the cooking container; a power integrating section (81) for integrating a heating power outputted from the inverter circuit; and a heat control section (82) for controlling output from the inverter circuit. When the integration value obtained by the power integrating section is less than a prescribed value when an output increase quantity of the infrared sensor reaches a first prescribed value after heating is started with a first heating power, heat control mode is shifted to first heat control mode. When the integration value obtained at the power integrating section is at a prescribed value or higher, the heat control mode is shifted to second heat control mode. In the first heat control mode, the heating power is suppressed to a second heating power, which is lower than the first heating power. In the second heat control mode, heating is performed with a third heating power which is higher than the second heating power.
Owner:PANASONIC CORP

Alternating voltage zero-crossing detection method based on alternating voltage detection circuit

The application discloses an alternating voltage zero-crossing detection method based on an alternating voltage detection circuit, wherein the alternating voltage detection circuit is used for rectifying, dividing and filtering an alternating voltage signal and acquiring a voltage acquisition signal with a half-wave waveform. The method comprises the following steps: detecting specific sub-waveforms in a single half-wave in a half-wave waveform by periodically collecting voltage acquisition signals; obtaining the compensation delay of a specific sub-waveforms; and judging the zero-crossing point of the alternating voltage signal according to the specific sub-waveforms and the compensation delay. According to the invention, the zero-crossing detection circuit is not specially designed, thealternating voltage detection circuit is directly utilized, and the alternating voltage zero-crossing detection is carried out by combining a software algorithm, so that the cost can be reduced, and the zero-crossing point can be accurately judged, for example, the alternating voltage zero-crossing detection method can be applied to a cooking appliance. According to the zero-crossing detection result, the heating power of the cooking appliance can be further controlled to improve the cooking efficiency and reliability of the cooking appliance.
Owner:JOYOUNG CO LTD

Far infrared heating mouse pad and preparation method thereof

The invention provides a far infrared heating mouse pad. The mouse pad comprises a surface layer, an insulating heat conducting layer, a far infrared heating paper layer, an insulating heat reflectingfilm layer and a bottom layer in sequence from top to bottom, wherein the far infrared heating paper layer comprises two pieces of far infrared heating paper in parallel; the two pieces of far infrared heating paper are connected through a circuit structure; the circuit structure comprises a combination switch; and the combination switch controls a connection mode of the two pieces of far infrared heating paper to be serial or parallel. According to the mouse pad, the far infrared heating paper layer is utilized for heating, so that the heating area is large and the temperature distribution is uniform; and by utilizing the insulating heat reflecting film layer, the heat loss can be reduced; the circuit structure is utilized to control the connection mode of the two pieces of far infraredheating paper, so as to control the heating power, so that the temperature of the mouse pad can be adjusted to increase the hand comfort of the users; and the far infrared heating paper can be used asa heating material which is environmentally friendly and pollution-free and does not damage the human health.
Owner:NANOCARBON CO LTD

Rolling ball tea fixation machine

The invention relates to a rolling ball tea greening machine, comprising a hollow rolling ball, a rolling ball bracket, a rolling ball abutment wheel and a fixing machine pole; the hollow rolling ball is rotatably connected with the rolling ball bracket and driven by the rolling ball abutting wheel rolling; the rolling ball abutting wheel is rotatably arranged on the rolling ball support and abuts against the hollow rolling ball; the rolling ball abutting wheel is driven by a first motor fixedly arranged on the rolling ball support; the rolling ball support also It is rotatably connected with the green fixing machine pole; the rolling ball bracket is driven by a second motor fixedly arranged at the connection part between the rolling ball bracket and the green killing machine pole; the hollow rolling ball includes a hollow inner ball and a hollow outer ball; the hollow The inner ball and the hollow outer ball are connected by connecting rods; the outer surface of the hollow inner ball is uniformly provided with an inner ball partition; the inner wall of the hollow outer ball is evenly provided with an outer ball partition; the inner ball partition and the outer ball The partitions are arranged at intervals, and the hollow outer sphere includes a metal heat conduction layer, an electric heating layer and a heat insulation layer which are sequentially arranged from the inside to the outside.
Owner:刘子旺

Cooker and cooker temperature control method

The invention provides a cooker and a cooker temperature control method. The cooker comprises an electromagnetic oven (1) and a pan (2), the electromagnetic oven (1) is internally provided with an electromagnetic oven control panel (11), the pan (2) comprises a pan body (21) and a handle (22), the pan (2) further comprises a temperature measuring component (23), and the handle (22) is internally provided with a handle control panel (24); a temperature measuring hole (211) is radially formed in the bottom of the pan body (21), one end of the temperature measuring component (23) is inserted intothe temperature measuring hole (211), and the other end of the temperature measuring component (23) is electrically connected with the handle control panel (24); the handle control panel (24) is usedfor collecting temperature signals measured by the temperature measuring component (23), and sending the temperature signals to the electromagnetic oven control panel (11); the electromagnetic oven control panel (11) is used for controlling the heating power of the electromagnetic oven (1) according to the received temperature signals. According to the technical scheme, the temperature control precision of the electromagnetic oven can be improved.
Owner:ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD

Control method and device for cultivation temperature of bean sprouting machine and bean sprouting machine

The invention provides a control method and a device for cultivation temperature of a bean sprouting machine and the bean sprouting machine, and aims to solve the problem of the existing bean sprouting machine that the growing situations of bean sprouts are nonuniform due to nonuniform temperature in a cultivation bucket. The control method comprises the following steps of detecting the ambient temperature outside the cultivation bucket of the bean sprouting machine or the temperature in the cultivation bucket; according to the ambient temperature, controlling the preset power of heating of a heating wire on the side wall of the cultivation bucket, or according to the temperature in the cultivation bucket, controlling a water heating device of the bean sprouting machine to start and close; and according to the temperature in the cultivation bucket, controlling a water spraying device of the bean sprouting machine to start and close. The control method, the device and the bean sprouting machine solve the defects of the existing bean sprouting machine that the growing situations of the bean sprouts are nonuniform in winter, and have the advantage that the quality and grade of the bean sprouting machine are improved.
Owner:GREE ELECTRIC APPLIANCES INC

Electromagnetic fixation machine with variable magnetic field

The invention discloses an electromagnetic fixation machine with a variable magnetic field. The machine comprises a driving motor, a frame, a first belt, a second belt, a roller, a shell, a spiral coil, a conductor, a permanent magnet, a permanent magnet fixing piece, a first driving belt wheel, a second driving belt wheel, a rotating disc, a supporting base and a reduction gearbox, the shell is horizontally arranged on the frame, the roller is sleeved by the shell, one end of the roller is provided with a driving shaft, and the outer side of the roller is provided with the spiral coil according to power requirements; the other end of the roller is provided with the conductor; and the permanent magnet fixing piece is fixed on the rotating disc, the rotating disc and the roller are coaxially arranged, the two permanent magnets are arranged at two ends of the permanent magnet fixing piece, and the N poles and the S poles of the two permanent magnets are arranged in opposite directions. The electromagnetic fixation machine adopts the permanent magnet as a stator, the driving motor drives the conductor attached to a roller as a rotor, the rotor continuously cuts different magnetic poles of the permanent magnet to generate alternating current, and the spiral coil is utilized to form a vortex electric field to heat the roller.
Owner:ZHEJIANG UNIV OF TECH

Graphite side heater of layered serpentine polycrystalline silicon ingot furnace

The invention discloses a graphite side heater of a layered serpentine polycrystalline silicon ingot furnace, and relates to the technical field of photovoltaic equipment ingot. The graphite side heater comprises 8 side heater monomers, 3 lifting arms, 3 electrodes and 4 corner connecting plates. The side heater monomers are serpentine, an upper layer side heater comprises four side heater monomers, a lower layer side heater comprises four side heater monomers, the lower middle sections of the lifting arms are connected with the upper layer side heater and the lower layer side heater, so thatthe upper layer side heater and the lower layer side heater are connected in parallel, the lifting arms divide the side heater into equal three phases, the electrodes are connected with the top ends of the lifting arms, and the corner connecting plates connect the upper layer side heater monomers and the lower layer side heater monomers, and connect left-right adjacent side heater monomers in eachsame layer. The graphite side heater is designed as an in-parallel upper-lower two-layer structure, the resistance of the side heater can be effectively reduced, the peak power of the side heater canbe improved, and double requirements of G8 and a larger size ingot furnace on the power and the thickness of the graphite side heater can be balanced.
Owner:江苏美科太阳能科技股份有限公司

Device and method for quickly repairing thermoplastic plastic automobile parts

The invention discloses a device and method for quickly repairing thermoplastic plastic automobile parts. The device comprises a casing and a cup; a fan blade driven by a motor, a disk-shaped heatingwire assembly and a labyrinth cover are arranged in the casing; and air holes are used for air circulation and heat transferring. When the cup covers an area to be shaped, an inner part of the casingis divided into an upper sealing cavity and a lower sealing cavity with the position where the fan blade is located as the boundary; and a first valve is installed on the portion, corresponding to theupper sealing cavity, of the casing, and a second valve is mounted on the portion, corresponding to the lower sealing cavity, of the casing. Rapid maintenance of the automobile parts is achieved by controlling forward and reverse rotation of the motor, opening or closing of the valves and on or off of resistance wires. The device can work directly on the surfaces of the thermoplastic plastic automobile parts without detaching automobile body coverage pieces, and the whole repair process is automatic; deformed standard parts can be repaired without replacing the coverage pieces, the structureis simple, the operation is simple, the efficiency is high, and the device can greatly save human effort.
Owner:SOUTH CHINA UNIV OF TECH
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