1350results about "Coil arrangements" patented technology

The invention relates to an eddy current heating device for a thermoluminescence element and a heating method. The device comprises a heating disc, a copper coil assembly, a supporting frame, a temperature measuring sensor assembly and a control circuit, the heating disc is in a disc shape, and the copper coil assembly is composed of four multi-layer closely-wound fan-shaped copper coils which are arranged in four quadrant areas of the heating disc respectively; the temperature measuring sensor assembly is provided with four temperature sensors which are embedded into the bottom of the heating disc through heat-conducting glue and connected with the control circuit. The control circuit adopts a PID (Proportion Integration Differentiation) algorithm to independently adjust the current of each sector according to feedback signals of each temperature sensor, realizes rapid temperature rise and accurate temperature control through frequency adjustment and power compensation, and has an over-temperature protection function. According to the device, the temperature of the heating disc can be raised to 300 DEG C within 3 seconds, and the temperature deviation is controlled within + / -0.5 DEG C. Compared with traditional resistance heating, the device has the advantages of being fast in temperature rise, low in energy consumption, high in temperature uniformity, convenient to maintain and the like, and meets the high-precision temperature control requirement of thermoluminescence measuring and reading equipment.

The invention provides an aerosol generating device and a coil assembly thereof, the aerosol generating device comprises a control assembly, the control assembly transmits an electric signal to the coil assembly through an electric connection part, the coil assembly comprises a ceramic substrate, a conductive heating body and a temperature feedback element, the ceramic substrate defines a heating cavity, and the conductive heating body is arranged in the heating cavity. The heating cavity is used for accommodating an aerosol forming substrate; the conductive heating body is arranged on the ceramic base body, and the conductive heating body heats the aerosol to form a substrate so as to generate aerosol; the temperature feedback element is arranged on the inner side or the outer side of the heating cavity and used for obtaining temperature related information of the conductive heating body and feeding back the temperature related information to the control assembly. The ceramic base body integrates the conductive heating body and the temperature feedback printed circuit, precision of temperature feedback control is achieved, real-time feedback adjustment can be conducted on the coil circuit according to the preset temperature, and stability and precision of the heating process are guaranteed.

The utility model discloses an electromagnetic induction heating module, heating equipment and a slab production line, and relates to the technical field of induction heating. The heating module comprises a shell, a coil, and a first magnetic conductive assembly, a second magnetic conductive assembly and a third magnetic conductive assembly which are sequentially arranged along the length direction of the coil, the first magnetic conductive assembly and the third magnetic conductive assembly respectively correspond to two side parts of a to-be-heated object, and the second magnetic conductive assembly corresponds to the middle part of the to-be-heated object; the first magnetic conductive assembly and the third magnetic conductive assembly each comprise a first magnetizer which is matched with the coil and can move up and down, and the second magnetic conductive assembly comprises a second magnetizer which is matched with the coil and is fixed. By adjusting the gap between the first magnetizer and the to-be-heated object, the heating temperature of the area corresponding to the to-be-heated object is adjusted, and the temperature uniformity of the to-be-heated object in the width direction is achieved.

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

A fixing rotating member comprising: a base material and an electro-conductive layer on the base material; the electro-conductive layer extending in a circumferential direction of an outer peripheral surface of the base material, the electro-conductive layer comprising silver, an average crystal grain size of crystals of the silver observed in a cross section along a circumferential direction of the electro-conductive layer being 20 to 200 nm, and the electro-conductive layer having a volume resistivity of 1.0×10−8 to 8.0×10−8 Ω·m.

The utility model relates to the technical field of metallurgical electric furnaces, in particular to an induction coil for a medium-frequency electric furnace, which comprises an induction heating coil, an upper cooling coil positioned above the induction heating coil and a lower cooling coil positioned below the induction heating coil, the upper cooling coil, the induction heating coil and the lower cooling coil are all formed by winding hollow pipe bodies in the same spiral direction, the cross section of the induction heating coil is in a D shape, and the induction heating coil comprises an inner pipe wall, an outer pipe wall and two connecting walls connected between the inner pipe wall and the outer pipe wall. The cross section of the induction heating coil is designed to be D-shaped, the inner pipe wall located on the inner side of the induction heating coil is arranged to be arc-shaped, and the outer pipe wall located on the outer side of the induction heating coil extends in the vertical direction, so that current and magnetic field distribution is optimized, and magnetic field energy acts on the surface of a workpiece on the inner side of the induction heating coil more intensively; energy loss is reduced, the heating speed of workpieces is increased, and the heating efficiency of the medium-frequency electric furnace is improved.

Provided herein is an aerosol-generating device for generating aerosol from an aerosol-generating material. The aerosol-generating device comprises a heating assembly including one or more heating units arranged to heat, but not burn, the aerosol-generating material 202 in use and a controller for controlling the one or more heating units. The controller is programmed such that, during a session of use, at least one of the one or more heating units is powered so as to be heated to a plurality of different temperatures sequentially, and each time that the heating unit is heated to a new temperature which is higher than a previous temperature the new temperature is less than 120° C. greater than the previous temperature and the heating unit is held at the new temperature for at least 0.5 seconds.

An aerosol-generating device is provided, including: a housing defining a chamber configured to receive at least one susceptor and at least one aerosol-forming substrate, the chamber having a length along a longitudinal axis thereof extending from a first end of the chamber to a second end of the chamber; and an inductor coil provided within the housing, disposed around the chamber, and extending along at least a portion of the length of the chamber, the inductor coil including a first portion disposed closest to the first end of the chamber, a second portion disposed closest to the second end of the chamber, and a third portion disposed between the first and the second portions, and a number of turns per unit length in the third portion is less than a number of turns per unit length in one or both of the first and the second portions.

To enable heating over substantially the entire circumference of a joint portion between a first pipe body and a second pipe body in a high-frequency induction heating device.SOLUTION: A high-frequency induction heating device comprises a coil 3 having a surrounding portion 9 that covers a part of the outer circumference of a joint portion between pipe bodies 1 and 2, and a coil 4 having a surrounding portion 9 that covers another part of the outer circumference of the joint portion between the pipe bodies 1 and 2. The surrounding portions 9 substantially cover the outer circumference of the joint portion. The coil 3 is connected to a power supply 6 including a resonator 5, and the coil 4 is connected to a resonator 7. The coil 3 is provided with a magnetic coupling portion 8, and the coil 4 is provided with a magnetic coupling portion 8 that is magnetically coupled to the magnetic coupling portion 8 of the coil 3.SELECTED DRAWING: Figure 1

A vapor generation device and a susceptor thereof are disclosed. The susceptor is in a blade shape extending in an axial direction of a cavity, and includes: a first part having a first size in a thickness direction, and a second part having a second size in the thickness direction, the second size being greater than the first size. An accommodation cavity extending in the axial direction is further arranged in the second part, and the accommodation cavity is configured to accommodate or encapsulate a temperature sensor that senses a temperature of the susceptor. The vapor generation device and the susceptor of this application encapsulates or accommodates the temperature sensor in the susceptor. Hence, a sensing part may be basically insulated from the impact of the magnetic field, and the susceptor and the temperature sensor may be integrated to increase stability of mounting and accuracy of temperature detecting.

The invention relates to the technical field of electromagnetic coils, in particular to a Halbach array planar coil structure unit. The Halbach array planar coil structure unit is composed of a first substructure, a second substructure and a third substructure. According to the invention, a planar electromagnetic coil is adopted to form a Halbach array permanent magnetic field effect; the invention discloses a Halbach array permanent magnet structure, and aims to solve the problems that the existing Halbach array permanent magnet structure is difficult to miniaturize and rigid, cannot get rid of the limitation of permanent magnet materials, is difficult to realize a sine distribution magnetic field in a real sense and is low in electromagnetic utilization rate.

There is provided a method of controlling an aerosol-generating system including an aerosol-generating device including a cavity to receive an aerosol-forming substrate, an inductive heating arrangement including an inductive heating element including a susceptor heatable by penetration with a varying magnetic field to heat the substrate, first and second inductor coils, and a power supply; the method including initiating heating of the substrate in the cavity by a first varying current in the first coil to generate a first varying magnetic field that heats a first portion of the element, and controlling the first current to increase a temperature of the first portion with a first profile; and subsequently driving a second varying current in the second coil to generate a second varying magnetic field that heats a second portion of the element, and controlling the second current to increase a temperature of the second portion with a second profile.

The invention relates to a temperature control induction heating system for surfacing of the inner wall of a nuclear power main pump shell. The system is formed by splicing a top induction heating tool, a bottom induction heating tool and a plurality of side induction heating tools through a stainless steel connecting frame, and an intelligent temperature control system. The intelligent temperature control system is composed of a distributed temperature measurement sensor, a central control unit and a man-machine interaction terminal. The heating method comprises the steps of tool assembly, preheating, dynamic interlayer temperature control in the surfacing process, programmed postweld heat treatment and data recording and dismounting. The device has the advantages that the device is adaptive to the special-shaped curved surface of the pump shell through modular design, the power of each tool is dynamically and independently adjusted, the problems of uneven temperature and low efficiency of a traditional heating mode are solved, and the surfacing quality and the process traceability are remarkably improved.

An inductive heating element for an aerosol-generating system is provided, the inductive heating element including: a cavity configured to receive an aerosol-forming substrate to be heated by the inductive heating element; a first susceptor; a second susceptor; and an intermediate element disposed between the first susceptor and the second susceptor, the intermediate element being gas permeable, the intermediate element including at least one of: a thermally insulative material configured to thermally insulate the first susceptor from the second susceptor, and an electrically insulative material configured to electrically insulate the first susceptor from the second susceptor. An inductive heating arrangement and an aerosol-generating device are also provided.

The invention discloses a lithium battery copper foil online aging device and method, and belongs to the technical field of copper foil production, the device comprises an anode tank, a passivation tank, a drying and aging mechanism and a copper foil winding mechanism which are arranged in sequence, and a roll shaft system for realizing copper foil conveying; the drying and aging mechanism comprises an electromagnetic induction heating coil and an infrared temperature sensor, the electromagnetic induction heating coil is located under the copper foil, and the electromagnetic induction heating coil is connected with an alternating current source; the infrared temperature sensor is used for collecting surface temperature data of the copper foil in real time, and the infrared temperature sensor is in communication connection with a power supply host of the electromagnetic induction heating coil; and a cooling mechanism for cooling the surface of the copper foil is arranged on the output side of the drying and aging mechanism. The aging time is greatly shortened, and the production efficiency can be remarkably improved; and through accurate temperature and stress feedback control, uniform heating of the copper foil is ensured, internal stress is effectively eliminated, and the warping degree of the copper foil is reduced.

The invention provides an in-situ thermal field induction heating module design method and device, and relates to the technical field of laser manufacturing, and the in-situ thermal field induction heating module design device comprises an optical fiber laser, a laser cladding nozzle, a six-axis mechanical arm, a coil adjusting structure, an induction coil, an induction power supply, a water cooling machine, a molten pool monitoring and control system and a base material; the optical fiber laser is connected with the laser cladding nozzle, the six-axis mechanical arm is used for controlling the laser cladding nozzle to move, and the coil adjusting structure is installed on the six-axis mechanical arm and connected with the induction coil so that the induction coil can synchronously move along with the laser cladding nozzle. The sprayed metal powder is solidified on the base material to form a cladding layer, the induction power supply generates high-frequency current and conducts the high-frequency current to the induction coil, the induction coil heats the cladding layer, and the water cooling machine is used for cooling the induction coil; the molten pool monitoring and control system is installed on the side face of the molten pool and used for monitoring thermal field distribution of the molten pool in real time. The method has the advantage that the problem that defects such as cracks and air holes are prone to being generated in the laser cladding process is solved.

An image heating device configured to heat an image formed on a recording material, includes a tubular rotary member, a magnetic core material, an excitation coil, an inverter, a control unit, and a power cutoff unit configured to cut off supply of power from the inverter to the excitation coil regardless of a control state of the inverter by the control unit in a case where the power input from the inverter to the excitation coil exceeds a threshold, the control unit is configured to change a driving frequency of the inverter. The power cutoff unit is configured to change a value of the threshold based on a value of the driving frequency of the inverter.

An aerosol-generating device according to an embodiment may comprise: a main body having an internal space formed on one side into which an aerosol-generating article is inserted; a susceptor housed within the body and heating the aerosol-generating article; the induction coil surrounds the susceptor and generates an alternating magnetic field; and a control section that controls an operation of the aerosol-generating device and includes at least one processor, in which the susceptor includes a hollow that increases an inductance of the susceptor when heated.

The utility model discloses an internal heating type electromagnetic oven, which comprises an oven body and an electromagnetic heating component arranged in the oven body, the electromagnetic heating component comprises a central tube arranged in the oven body, an electromagnetic coil wound on the central tube and a heating cylinder sleeved outside the electromagnetic coil, and the heating cylinder is made of electromagnetic induction materials. And the central tube is made of a non-magnetic material. After the electromagnetic coil is powered on, the heating cylinder emits heat, and therefore food in the oven body is heated in an electromagnetic heating mode. Due to the fact that the heating cylinder is located in the center of the furnace cavity in the furnace body, the heating cylinder serves as a heat source, the temperature of the heating cylinder is the highest, and the heating cylinder is surrounded by the furnace cavity, most heat emitted by the heating cylinder can be used for heating the furnace cavity, only the portions, connected with the furnace body, of the two ends of the heating cylinder have little heat loss, and therefore the heat utilization efficiency is improved.

The invention discloses a working parameter determination method and device, electromagnetic heating equipment and a storage medium, the method is applied to the electromagnetic heating equipment with a plurality of detection devices, and the detection devices are used for detecting working parameters of corresponding positions; the method comprises the steps that under the condition that electromagnetic heating equipment heats cookware, detection devices covered by the cookware are classified into detection groups according to the current heating position of the cookware; and determining the working parameters corresponding to the cookware according to the detection data corresponding to the detection device with the normal working state in the detection group under the condition that the working state of at least one detection device in the detection group is abnormal and the working state of at least one detection device in the detection group is normal, so that the working parameters of the cookware are determined according to the detection data corresponding to the detection device with the normal working state in the detection group. Under the condition that the working states of part of the detection devices are abnormal, the working parameters can be determined through the detection devices in the normal working states, and the probability of normal working of the electromagnetic heating equipment is effectively improved.

The application discloses a heating assembly, a heating device and a battery cell hot-pressing equipment. The heating assembly comprises two coil assemblies, each coil assembly comprising a magnetic conducting member and a plurality of coils, the magnetic conducting member having three connection ends arranged in sequence, the connection ends being connected in a straight line, and each connection end being provided with a coil, and adjacent coils being adapted to pass through currents with a phase difference of 120 degrees. The two coil assemblies are arranged at intervals, a heating space is formed between the two coil assemblies, the connection ends of the magnetic conducting members of the two coil assemblies correspond to each other, the coils sleeved on the two corresponding connection ends are adapted to pass through currents with the same phase and can form a closed and linearly moving magnetic circuit. By corresponding the connection ends of the two magnetic conducting members and passing three-phase alternating currents through the coils on the three connection ends of the same magnetic conducting member, the closed magnetic circuit is linearly moved, so that the heating of the battery cell is uniform, the heating time of the battery cell is reduced, and the heating efficiency of the battery cell is improved.

The embodiment of the utility model provides an electromagnetic heating assembly and an electromagnetic heating device, and the electromagnetic heating assembly comprises a coil which is provided with a first side for arranging a to-be-heated part; the shielding piece covers the first side of the coil, the shielding piece comprises at least two shielding combs, and the at least two shielding combs are uniformly arranged in a circumferential mode. By covering the shielding piece on the coil, at least part of electromagnetic waves can be shielded, so that the influence of electromagnetic interference on other electronic equipment is reduced; moreover, the shielding piece is arranged to be in the shape of the shielding comb, so that the area of the shielding piece can be reduced on the basis of shielding at least part of electromagnetic waves, and the heat productivity of the shielding piece is further reduced.

The invention provides an induction heating cooker and a control method of the induction heating cooker, which can shorten cooking time. This induction heating cooker is provided with: a top plate on which an object to be heated is placed; a heating coil disposed below the top plate; and a controller for controlling a high-frequency current supplied to the heating coil, the controller preheating the object to be heated at a first thermal power in a fried food cooking mode in which oil contained in the object to be heated is used for heating and cooking, maintaining the object to be heated at a predetermined temperature after the preheating is completed, and controlling the high-frequency current supplied to the heating coil in a fried food cooking mode in which the oil contained in the object to be heated is used for heating and cooking. And when it is detected that the food material is put into the heating object, the heating object is heated with second fire higher than the first fire.

[Problem] To provide a heating coil capable of efficiently quenching a workpiece in a short time, and controlling the depth of a cured layer produced by quenching the workpiece for each height position in accordance with the shape of the workpiece. [Solution] This heating coil (1) comprises: ground parts (2a, 2b) for attaching to an electrode; a pair of support parts (3a, 3b) which are respectively orthogonal to the ground parts (2a, 2b) and are arranged so as to face each other in parallel with each other, and in which distal-end portions are vertically branched; a circumferential upper heating part (4α) which is provided so as to connect the upper-side distal ends of the support parts (3a, 3b); and a circumferential lower heating part (4β) which is provided so as to connect the lower-side distal ends of the support parts (3a, 3b) to each other. A heat release part (R) is formed so as to protrude outward in an upper-side branch portion of the left support part (3a), and a high-frequency current from the ground parts (2a, 2b) is supplied to the upper heating part (4α) via the heat release part (R). [Selected Drawing] Figure 1

Induction heating from an induction coil (108) is used to separate a metal medical sharp (144) from its holder (142) by applying a high-frequency oscillating magnetic field that excites eddy currents and resistance heating in the sharp. The heated metal sharp melts the adhesive or plastic securing the sharp to its holder. The use of induction heating is advantageous in that it does not require direct contact between the electrical circuit and the sharp or its holder. The heating can also act to sterilize the sharp and thereby render it less hazardous at the same time that it separates the sharp from its holder. The induction coil can have a stepped or conical shape to concentrate the RF energy at the interface between the metal sharp and its holder.

Disclosed is a heater assembly for accommodating and heating an aerosol generating article, the heater assembly including: an accommodation portion configured to accommodate an end portion of an aerosol generating article; a heating portion arranged to surround another portion of the aerosol generating article; and a combining portion configured to combine the accommodation portion and the heating portion and including engineering plastic, wherein the accommodation portion, the combining portion, and the heating portion are arranged along a longitudinal direction of the aerosol generating article and form an accommodation space in which the aerosol generating article is accommodated.

The invention relates to an aerosol-generating device. The aerosol-generating article comprises a heating device (14). The heating device comprises an induction coil (16). The aerosol-generating device further comprises a first sliding device (18). The first sliding device (18) comprises a first contact (22). The first sliding device (18) is arranged adjacent to the induction coil (16) of the heating device (14) and is configured to slide parallel to a longitudinal axis of the induction coil (12). The first contact (22) is mounted on the first sliding device (18) and is arranged to contact the induction coil (12). The aerosol-generating device further comprises a second sliding device (20). The second sliding device (20) comprises a second contact (24). The second sliding device (20) is arranged adjacent to the induction coil (16) of the heating device (14) and is configured to slide parallel to a longitudinal axis of the induction coil (16). The second contact (24) is mounted on the second sliding device (20) and is arranged to contact the induction coil (16). An alternating current is supplied to the induction coil (16) between the first contact (22) and the second contact (24).

To provide a novel article and the like for use with apparatus configured to heat a smokable material to volatilize a component of the smokable material.SOLUTION: Disclosed is an article (1, 2, 3) for use with an apparatus for heating a smokable material to volatilize a component thereof. The article (1, 2, 3) comprises a cavity (18) for receiving the smokable material, and a coil (22) of a heating material that is heatable by penetration of a varying magnetic field to heat the cavity (18). Also disclosed is a system (1000) comprising the article (1) and an apparatus (100). The apparatus (100) has an interface (111) for cooperating with the article (1), and a magnetic field generator (112). The magnetic field generator (112) comprises a coil (114) for generating a varying magnetic field to penetrate the coil (22) of the article (1). An impedance of the coil (114) of the magnetic field generator (112) is substantially equal to an impedance of the coil (22) of the article (1).SELECTED DRAWING: Figure 1