3248results about "Induction heating apparatus" patented technology

The present invention discloses a heating control method for an electromagnetic cooker based on gallium nitride and silicon carbide materials, which relates to the technical field of electromagnetic cooker control, including sampling a current signal; inputting the current signal into a gallium nitride driving circuit to generate a driving waveform; detecting the temperature distribution in the heating area of ​​the electromagnetic cooker and extracting temperature characteristic parameters; establishing a power control model based on the driving waveform and the temperature characteristic parameters and in combination with the conduction loss characteristics of the gallium nitride device; calculating the output power adjustment coefficient through the power control model, adjusting the duty cycle of the driving waveform according to the power adjustment coefficient, and obtaining a corrected driving signal; and controlling the output power of the gallium nitride power device using the corrected driving signal. An objective function is constructed based on the temperature distribution eccentricity, temperature control deviation, and heating uniformity coefficient, and an adaptive weight algorithm is used to dynamically adjust the weight coefficient, so as to achieve multi-objective optimization of temperature control, heating uniformity, and power loss.

A wireless power transmission apparatus for induction heating includes: a working coil configured to change operation based on selection of a mode of operation from among a plurality of operating modes, the plurality of operating modes including a wireless power transmission mode configured to wirelessly transmit power and a heating mode configured to heat one or more objects, an inverter configured to output, to the working coil, current at an operation frequency, and a controller. The controller is configured to calculate an eccentricity degree between the working coil and a reception coil of a target object, and control, in the wireless power transmission mode, the operation frequency based on the calculated eccentricity degree while performing wireless power transmission to the target object.

The present disclosure is related to a system for generating high-temperature fluids, designed to reduce carbon emissions and improve energy efficiency in various industrial processes. The system leverages advanced thermal energy transfer and storage technologies to efficiently utilize diverse energy sources, including grid electricity, renewable energy, and waste heat from industrial processes. Particularly, the system comprises a heating subsystem, a heat transfer and storage subsystem, a post-heating subsystem, and an electrical feeding subsystem, a fluid circulation subsystem and a cooling circulation subsystem. The heat transfer and storage subsystem utilize innovative materials and techniques to efficiently store and release thermal energy, enabling the system to operate with high thermal efficiency and flexibility.The system can be integrated into various industrial processes, and by optimizing energy utilization and reducing reliance on fossil fuels, the system contributes to a more sustainable and environmentally friendly future. Additionally, the system can be integrated with different renewable electricity generation systems such a photovoltaic, wind, hydroelectric, among others. The system can also be integrated with the electrical grid, providing valuable grid services such as load balancing, energy shifting, and frequency regulation. This enhances grid stability and enables the system to contribute to a more resilient and efficient energy infrastructure.Furthermore, this invention offers a promising solution for reducing carbon emissions, improving energy efficiency, and enhancing the flexibility and reliability of industrial processes.

The invention relates to an aluminum bar permanent magnetic induction heating method for extruding an aluminum alloy profile, which mainly solves the problem of poor heating uniformity of an aluminum bar heated by electromagnetic induction in the prior art, and comprises the following steps of: a, placing the aluminum bar on a conveying mechanism for conveying, pushing the aluminum bar into a conveying channel of a heating mechanism through a pushing mechanism, and heating the aluminum bar in the conveying channel; the aluminum bar is arranged in a composite magnetic field generated by the permanent magnet assembly; b, a gradient magnetic field is formed through alternate arrangement of permanent magnet polarities of the permanent magnet assembly, meanwhile, the electromagnet generates a high-frequency alternating magnetic field through alternating current, eddy current is excited on the surface of the aluminum bar through the magnetic field coupling effect, conduction type heating from outside to inside is achieved, and the electromagnet is independently controlled through a sub-power source of the power source system; local magnetic field compensation is realized through independent current control, and the compensation range is + / -0.3 T; c, the temperature of the aluminum bar is detected through an infrared temperature sensor and fed back to a control system, and the distance between the permanent magnet unit and the aluminum bar is dynamically adjusted.

The invention provides an infrared pulse thermal radiation grinding burn nondestructive testing method and system, and belongs to the technical field of nondestructive testing. Comprising the following steps: inputting an excitation signal to an induction coil, and inducing a pulsed eddy current in a tested part for heating; a thermal infrared imager and a depth camera are used for obtaining a thermal response temperature matrix of a measured area of the part and a three-dimensional point cloud of the measured area; then, constructing a thermal response model of the part; extracting a time sequence temperature curve of the heating stage and the natural cooling stage of the detected area, and establishing a grinding burn discrimination function to judge whether a grinding burn area exists or not; and the thermal infrared imager and the depth camera are calibrated, the grinding burn area under the coordinate system of the thermal infrared imager is projected into the three-dimensional point cloud of the depth camera, the position of the grinding burn area under the world coordinate system is obtained, and detection and positioning of the grinding burn area are achieved.

To provide an induction heating method and an induction heating device that can save space and reduce costs.SOLUTION: A workpiece W is transported by gravity to a magnetic field B formed by a heating coil 12.SELECTED DRAWING: Figure 2

The invention discloses an electric baking pan heating control circuit and an electric baking pan, and the electric baking pan heating control circuit comprises an eddy current feedback module which comprises a current supply module and a coil used for being arranged on a heating disc of the electric baking pan, and the current supply module is connected with the coil; the coil is used for generating alternating current and outputting the alternating current to the coil to generate an alternating magnetic field to act on the other heating disc of the electric baking pan to form eddy current; the weighing module is used for being arranged on a heating disc of the electric baking pan to detect the weight of the heating disc; and the detection control module is connected to the coil and the weighing module and used for detecting feedback current generated by the feedback action of the eddy current in the coil and adjusting the temperature and the heating time of a heating disc of the electric baking pan according to the feedback current and the weight detected by the weighing module. The heating control circuit of the electric baking pan is applied to the electric baking pan, the heating temperature and the heating time of the heating disc of the electric baking pan can be automatically adjusted according to the weight and the thickness of food, the food cooking effect of the electric baking pan is easier to control, and the taste of the cooked food is better.

A method of attaching a flat flexible cable (FFC) to a plurality of terminals of an electrical connector includes a step of arranging a plurality of terminals within a connector housing, with each terminal defining a weld area adapted to be electrically connected to a conductor of the FFC. The FFC is then positioned proximate the connector housing such that the weld areas of each terminal are arranged directly adjacent a respective one of a plurality of exposed conductors of the FFC. At least the weld areas of the plurality of terminals are heated with an inductive heating source for electrically connecting the plurality of conductors of the FFC to the plurality of terminals.

An apparatus for an aerosol generating device may include a heating circuit to heat a heating arrangement. The heating arrangement is arranged to heat an aerosol generating material to thereby generate an aerosol. The apparatus may include a temperature sensing arrangement to sense a temperature of the device. The apparatus may include a controller to control a supply of energy to the heating circuit. The controller may determine a characteristic that is indicative that energy is being supplied to the heating circuit over a given time period, and a change in temperature sensed by the temperature sensing arrangement. The controller may take a control action if, based on the determined characteristic and the increase in temperature sensed by the temperature sensing arrangement. The controller may determine that one or more predetermined criteria that are indicative of a fault with the temperature sensing arrangement are satisfied.

A heater and / or a reactor system having a conductive medium and a conductor adjacent to the conductive medium is described. The system has a source of electrical energy coupled to the conductor to provide electrical energy and create a magnetic field around the conductive medium. The system produces an eddy current that heats the conductive medium. Also described are methods of heating using the heater and / or a reactor system.

The invention discloses automatic welding equipment for metal workpiece machining, and relates to the technical field of welding, the automatic welding equipment comprises a base, two fixing seats and a welding machine, and further comprises a positioning mechanism; a pretreatment mechanism; the adjusting mechanism is used for driving the turntable to rotate; the interlayer welding auxiliary treatment mechanism comprises rapping assemblies mounted at the top and the bottom of the partition plate correspondingly and a polishing assembly mounted in the center of the top of the base; the positions of the upper thick pipe and the lower thick pipe are adjusted through the adjusting mechanism, an oxidation layer at the welding position is removed in cooperation with the interlayer welding auxiliary processing mechanism, meanwhile, reciprocating knocking is conducted on the welding position of the thick pipes, alternating stress generated by vibration can promote interlayer residual stress to be released, follow-up welding deformation is reduced, and welding quality is improved. By removing the oxide layer and releasing the residual stress in interlayer welding, the thick pipe splicing welding quality is effectively improved, and the thick pipe splicing welding efficiency is guaranteed while the thick pipe splicing welding quality is improved.

A control device, for a water purifier, that dispenses hot water and that includes: an input unit that is configured to receive a command signal; and a controller that is configured to control the water purifier based on the command signal, wherein the controller is configured to: control power output of a heating unit that is configured to heat water stored in a hot water tank of the water purifier, and based on the power output of the heating unit, control temperature of hot water dispensed by the water purifier is disclosed.

To provide an inductor for use in an aerosol provision device.SOLUTION: The inductor includes an electrically conductive element and a secondary coil. The element includes an electrically conductive non-spiral first portion 601 coincident with a first plane, an electrically conductive non-spiral second portion 602 coincident with a second plane that is spaced from the first plane, and an electrically conductive connector 603 that electrically connects the first portion 601 to the second portion 602. The electrically conductive element is configured such that, when a varying electrical current is applied to the electrically conductive element, a corresponding varying electrical current is induced in the secondary coil.SELECTED DRAWING: Figure 6

The utility model discloses a coil panel assembly and an electromagnetic heating device, and relates to the technical field of electromagnetic heating, the coil panel assembly comprises a support and at least one pair of winding units, in the pair of winding units, the current directions of the two winding units are set to be opposite, so that opposite magnetic poles are formed in the middle parts of the two winding units, and the winding units are arranged on the support. In at least one winding unit, a magnetic pole formed in the middle of the winding unit is close to one side of the corresponding second winding ring section, so that the magnetic field can be coupled with the position of the corresponding pot wall from one side close to the edge of the support, and the current directions of the lead sections, close to each other, of the two adjacent first winding ring sections are consistent. The distance d between every two adjacent first winding ring sections is larger than or equal to 5 mm, so that the magnetic field intensity of the wire connecting area between every two adjacent winding units is adjusted, the heating concentration degree of the corresponding pot bottom is weakened, and the heating uniformity of the pot can be further improved.

The invention provides a coil panel and cooking equipment, and relates to the technical field of cooking equipment. The coil disc includes: a heat insulating member; the winding is arranged on the heat insulation part, the winding is in a strip shape, the winding is spirally wound on the heat insulation part to form a coil, and the electrified coil can generate an electromagnetic field and heat radiation.

A curb stone or paving stone charging device for charging an energy store of an electrically driven vehicle. The curb stone or paving stone charging device includes a main body, an inner receiving space which is delimited on a plurality of sides by the main body, a cover which closes the receiving space, a charging unit having components which are arranged in the receiving space, a charging socket which is connected mechanically at least indirectly to the cover, and a heating element which heats the cover. The main body is produced from a metal, a concrete, a natural stone, a plastic or a composite material.

The invention belongs to the technical field of high-frequency quenching coils, and particularly discloses a high-frequency induction quenching coil capable of uniformly heating, which is characterized by comprising a coil diameter self-adaptive mechanism and a coil rotating mechanism, the coil diameter self-adaptive mechanism comprises an elastic induction coil, a centrifugal collecting assembly and a sliding guide mechanism, the elastic induction coil is arranged in the sliding guide mechanism in a sliding mode, and the centrifugal collecting assemblies are evenly distributed in the sliding guide mechanism in an annular mode. According to the scheme, a control scheme based on the rotating speed is adopted, the elastic induction coil is collected in cooperation with the balancing weight and the collecting rope, the technical prejudice that the diameter of a rotating object is increased along with increasing of the rotating speed is overcome, and the technical effect that the higher the rotating speed is, the smaller the diameter of the elastic induction coil is is is achieved; and meanwhile, the electric brush and the two semicircular extension plates are alternately connected in the rotating process, so that the frequency can be automatically regulated and controlled.

A kitchen appliance is disclosed includes a first electrical component, a second electrical component, and a wireless power receiver system. The wireless power receiver system includes a first receiver antenna configured to couple with a first transmission antenna and receive virtual AC power signals from the first transmission antenna. A second receiver antenna is configured to couple with a second transmission antenna and receive virtual DC power signals from the second transmitter antenna. A first receiver power conditioning system is configured to receive the virtual AC power signals, convert the virtual AC power signals to AC received power signals, and provide the AC received power signals to power the first electrical component. The second receiver power conditioning system configured to receive the virtual DC power signals, convert the virtual DC power signals to DC received power signals, and provide the DC received power signals to power the second electrical component.

Cookware identification includes exciting a cooking vessel using an excitation component. It further includes sensing an acoustic response of the cooking vessel to the excitation using a sensor. It further includes determining a type of the cooking vessel based at least in part on the acoustic response of the cooking vessel to the excitation that is sensed via the sensor.Ingredient state detection includes sensing, using an acoustic sensor, vibrations pertaining to cooking of an ingredient in a cooking vessel. It further includes monitoring, over time, a signal that is based on the vibrations sensed by the acoustic sensor. It further includes, based on detecting a change in the signal that is based on the vibrations sensed by the acoustic sensor, determining a state of the ingredient.

An inductive heater assembly for heating a power tool battery pack, the inductive heater assembly comprising a housing, a battery pack interface configured to receive the power tool battery pack, a charging base, a coil portion located within the housing. The coil portion including a first coil winding and a second coil winding configured to generate an electromagnetic field, wherein the first coil winding and the second coil winding to form a Helmholtz coil.

Induction heating roller device (100), comprising: a rotatably mounted roller body (2); an induction heating mechanism (3) for inductively heating the roller body (2), wherein the induction heating mechanism (3) is arranged within the roller body (2); and a cooling mechanism (8) having an atomizing device (81) for generating an atomized coolant, wherein the cooling mechanism (8) introduces the atomized coolant from one axial end into a substantially cylindrical space (X) formed between the roller body (2) and the induction heating mechanism (3), and guides the coolant out of the roller body (2) from one axial end of the space (X), wherein the atomizing device (81) is detachably provided on a bearing shaft (6A) provided at one end of the induction heating mechanism (3); and an ejection opening (81s) of the atomizing device (81) is mounted so as to be positioned on the center axis of a cavity (61) formed along the center axis within the bearing axis (6A).

An aerosol generating article includes: a plurality of elongate first strips including an aerosol generating material; at least one elongate second strip including an inductively heatable susceptor material; and at least one elongate carrier strip to which the at least one elongate second strip is adhered. Each of the plurality of elongate first strips has a width which is less than a width of the at least one elongate second strip and a width of the at least one elongate carrier strip is greater than the width of the at least one elongate second strip. The elongate first strips, the at least one elongate second strip and the at least one elongate carrier strip are arranged to form a rod-shaped aerosol generating article.

An electronic device includes: a housing configured to provide a space capable of receiving an object to be heated; a first electrode and a second electrode for forming an electric field in the space in which the object to be heated is received; and a floating electrode disposed between the first electrode and the second electrode, the floating electrode being positioned inside the object to be heated when the object to be heated is disposed in the space.

The invention discloses an electromagnetic heating circuit, a control method and device of electrical equipment and the electrical equipment. The circuit comprises at least two resonance modules. Each switch module comprises a fixed end, a movable end, a first position end and a second position end; the fixed ends of the at least two switch modules are connected to the at least two resonance modules in a one-to-one correspondence manner; the inversion module is connected to the first position end; the gating module is connected to the second position end; the oscillation driving module is connected to the gating module; the comparison module is connected to the oscillation driving module; and the control module is connected with the inversion module, the comparison module, the gating module and the at least two switch modules. According to the technical scheme provided by the embodiment of the invention, when part of the resonance modules in the electromagnetic heating circuit are in the heating state, whether cookware is placed at the positions corresponding to other resonance modules which are not in the heating state or not can be detected.

The present specification relates to a coil module and a home appliance including the same. A home appliance according to one embodiment of the present invention may comprise: a coil module comprising a plurality of first coil units stacked in a vertical direction and comprising a plurality of working coils, and a plurality of second coil units stacked in the vertical direction, a plurality of second coil units including a plurality of sensing coils and a wiring pattern electrically connecting the terminal unit with the working coil or the terminal unit with the sensing coils, and arranged in a different layer from the plurality of first coil units; and a control unit that performs container detection by using the sensing coil, and controls driving of the working coil in accordance with a result of the container detection.

An apparatus and method of application are described, which include a first switching arrangement configured to generate an alternating current from a power source. The alternating current flows through an inductive element of a resonant circuit for inductively heating a susceptor arrangement and heats an aerosol generating material of an aerosol generating device to generate an aerosol in a heating mode of operation. A driver circuit generates a control signal for controlling the first switching arrangement and a power mode switching arrangement is configured to disconnect at least a part of the driver circuit from the power source in a power saving mode of operation.

A micro-vibration wave generating device includes: a power indicator circuit, a first transformer micro-vibration wave generating circuit, and a receptor. An input end of the power indicator circuit is connected to the power source; an input end of the first transformer micro-vibration wave generating circuit is connected with an output end of the power indicator circuit; the receptor is connected with an output end of the first transformer micro-vibration wave generating circuit. Micro-vibration waves generated by the transformer micro-vibration wave generating circuit can resonate with the water molecules in the food, and thereby the water molecules form soft and non-spiky crystals of water molecules when they are frozen, which greatly reduces the damage to the food cells. Accordingly, the quality of the food is intact without mixing odors. The present invention can also be used in cooking deep fried food with almost no oil smoke produced.

An induction cooktop comprises a cooktop surface, induction heating coils beneath it, a power supply with power semiconductors for the induction heating coils, and an external electrical connection. The power supply is located on a power circuit board, and the electrical connection is located on a connection circuit board. At least one cooling device is also provided, comprising at least one fan with a fan inlet for intake and a fan outlet for exhaust air to cool the power supply, a cooling air duct, and at least one heat sink to which the cooling air duct leads. In a vertical direction perpendicular to the cooktop surface and to one of the circuit boards, the fan is positioned lower than the heat sink.The connection circuit board runs below the power circuit board, the connection circuit board has an electrical connection to the outside, and the cooling air duct runs with a bend and deflection of 90° or 180° between the fan outlet and the heat sink.

A disclosed induction heating cooker includes a plurality of heating coils. The plurality of heating coils are provided to heat an object to be heated on a top plate. Each of the plurality of heating coils includes a coil substrate formed by stacking a plurality of pattern layers of six or more layers, each of which has a coil pattern formed therein. The coil substrate includes a plurality of series pattern groups each including a plurality of coil patterns connected in series. The plurality of series pattern groups are connected in parallel.