105 results about "Magnetic heating" patented technology

This utility model relates to the field of life science technology, and in particular to a nucleic acid extraction device. The device includes a frame, a sample loading and waste liquid treatment mechanism, a oscillating magnetic heating mechanism, a control device, and a screen interaction system. The sample loading and waste liquid treatment mechanism achieves precise three-dimensional positioning through horizontal and vertical motion guides and vertical moving components. It includes parallel large and small pistons, allowing for flexible switching between different volume pipetting and sharing a common connector. The oscillating magnetic heating mechanism integrates oscillation, heating, and magnetic attraction functions, and works with various sizes of pipette tips and reagent kits to complete sample processing. The extraction process is automated through the control device, linking all mechanisms to automatically complete the entire process, including sample lysis, solid-liquid separation, magnetic bead purification, and elution. This application automates nucleic acid extraction, improving operational efficiency and extraction results, and is suitable for nucleic acid extraction from plant tissues, animal tissues, blood, plasmids, and other samples.

The application discloses an electromagnetic heating cooking appliance. It comprises a control device, an electromagnetic heating module, a cooking container, and a working condition display component. The electromagnetic heating module comprises at least one electromagnetic coil for generating an alternating magnetic field under the control of the control device, and the magnetic field area of the alternating magnetic field is non-uniformly distributed in the circumferential direction of the electromagnetic heating module; the cooking container comprises a ferromagnetic material, which is arranged in the magnetically inducible area of the electromagnetic heating module, and the central axis of the cooking container is substantially coincident with the central axis of the electromagnetic heating module; the working condition display component is electrically connected to the control device. The control device is configured to simultaneously perform the following operations during at least part of the cooking process: relatively rotating the cooking container and at least part of the electromagnetic heating module around the central axis to relatively rotate the alternating magnetic field and the cooking container; and making the working condition display component output at least a first visual signal representing the relative rotation.

The utility model discloses an electromagnetic heating humidifier which comprises a shell, an electromagnetic heating device, an electromagnetic heating device, an electromagnetic heating device, an electromagnetic heating device and an electromagnetic heating device. The middle of the shell is provided with a containing box, and the bottom of the containing box is provided with a plurality of hanging pins and connecting pins. The electromagnetic heating assembly is arranged in the shell and located below the containing box. The water tank is detachably arranged in the accommodating box; the base plate is arranged at the bottom of the shell, the weight of the humidifier acts on the base plate through butt joint and fixation of the connecting columns and the connecting feet, the base plate is provided with a weighing sensor, and the weighing sensor is electrically connected with the circuit board. According to the utility model, the weighing sensor is used for indirectly monitoring the water quantity, the signal interference of a magnetic conductive material to the sensor is avoided, the compatibility problem of the detachable water tank and electromagnetic heating is solved, the balance between the convenient cleaning of the detachable water tank and the electromagnetic heating efficiency is realized, and the installation limitation of the sensor is avoided through indirect weight detection; the rigid connection structure ensures the pressure measurement precision and effectively reduces the risk of dry burning.

This application discloses an electromagnetic heating method for tire vulcanization, comprising the following steps: Step one, dividing the tire mold into multiple regions corresponding to the tire crown, bead, and sidewall; applying heating power to each region using an electromagnetic heating device, the heating power matching the heat required by each region during the vulcanization process; Step two, dividing the tire vulcanization process into at least two dynamic control stages, including a rapid heating stage and a constant-temperature vulcanization stage; and calling an independent, pre-set set of control parameters for each dynamic control stage to perform real-time closed-loop feedback adjustment of the heating power. This electromagnetic heating method for tire vulcanization enables efficient, energy-saving, and intelligent precise temperature control throughout the entire tire vulcanization process, thereby achieving high-quality, low-energy, and intelligent tire manufacturing.

The utility model provides a multifunctional electromagnetic heating device which comprises a device body, an electromagnetic heating main circuit board and an output capacitor used for filtering are arranged in the device body, and the output end of the electromagnetic heating main circuit board is connected with an induction coil used for being wound on a coupling. The output capacitor is connected between the electromagnetic heating main circuit board and the induction coil, a control circuit board and a temperature control displayer are arranged on the side face of the device body, the input end of the control circuit board is connected with temperature sensors fixed to a coupling and a traction motor driving shaft, and the output end of the control circuit board is connected with the temperature control displayer. A cooling fan is arranged on the outer wall, close to one side of the output capacitor, of the device body. The device is simple in structure and reasonable in design, has the functions of temperature self-control, overload protection, current limitation and the like, can ensure the safety during use, and greatly improves the disassembly efficiency of the coupling.

The utility model discloses a close winding coil panel and an electromagnetic heating appliance, the close winding coil panel comprises an insulation board, the upper surface of the insulation board is connected with an electromagnetic coil, and the center of the insulation board is provided with a positioning hole; the center and the edge of the fixing support are provided with a center flange and a boundary flange respectively, the center flange penetrates through the positioning hole and is in close fit with the positioning hole, and a containing space is jointly formed between the center flange and the boundary flange; the number of the magnetic cores is multiple, a plurality of containing grooves are formed in the bottom face of the fixing support, and each magnetic core is connected into the corresponding containing groove; the bottom plate is provided with a plurality of groups of mounting holes, the fixing support is provided with at least two limiting buckles, and each limiting buckle is connected to the corresponding mounting hole. In the assembling process, the insulation heat insulation plate is positioned and installed in the containing space through the center flange, the fixing support and the bottom plate are connected in a buckled mode through the limiting buckles and the installation holes, the fixing support has the advantages of being simple in structure, convenient to install and reliable in connection, and the loosening and falling-off problems in a traditional fixing mode are avoided.

The utility model relates to an incineration closestool which comprises a sewage receiving cavity, an incineration cavity and an ash receiving cavity which are arranged on a closestool body. A sewage inlet and an ash outlet are formed in the incineration cavity, the sewage receiving cavity in the open state communicates with the incineration cavity through the sewage inlet, and the incineration cavity in the open state communicates with the ash receiving cavity through the ash outlet; a magnetic heating part and an electromagnetic coil are arranged on the incineration cavity and correspond to each other, and a magnetic field generated by electrifying the electromagnetic coil enables the magnetic heating part to generate high temperature for incinerating excrement. According to the incineration closestool, excrement is heated and incinerated in an electromagnetic heating mode, the incineration area and the ashing matter collecting area are separated from each other, and therefore the incineration closestool has the advantages of being high in heating efficiency, low in energy consumption, easy and convenient to use and the like.

The invention relates to the technical field of water heater control, and particularly discloses an air heating water heater control system which comprises a master control module, an electromagnetic heating module, a detection module, a safety protection module, a man-machine interaction module and a power module. The electromagnetic heating module comprises a high-frequency inverter, a self-adaptive coupling coil group and the like, and can convert power frequency alternating current into 20-50kHz high-frequency alternating current to realize 0-3000W stepless regulation non-contact air heating; the detection module feeds back operating parameters in real time through dual temperature measurement, capacitive water level and Hall magnetic field detection; the safety protection module integrates multiple protection mechanisms, and safety risks are avoided in an all-around mode. The main control module realizes closed-loop control, the man-machine interaction module supports parameter setting and state checking, and the power supply module provides stable power supply. The device is high in magnetic field transmission efficiency, high in heating speed, free of scale, accurate in temperature control, comprehensive in safety protection, convenient to operate, small in equipment abrasion and long in service life.

The application provides an electromagnetic heating device and a control method thereof. The electromagnetic heating device comprises K groups of induction heating units. Each group of induction heating units comprises two first induction coils located above a slab passage and two second induction coils located below the slab passage. In a first direction, the two first induction coils and the two second induction coils of each group of induction heating units are arranged correspondingly. The two first induction coils are arranged adjacently on the slab, and the two second induction coils are arranged adjacently below the slab. The coil plane of each induction coil is perpendicular to the first direction. The control units of the induction coils located at the same relative position in each group of induction heating units are the same control unit, and the control units of the induction coils located at different relative positions in each group of induction heating units are different control units, or the control units of the induction coils are independently arranged.

The present invention relates to the technical field of electromagnetic heating. Disclosed are an electromagnetic heating cigarette device and an electromagnetic heating system. The electromagnetic heating cigarette device comprises: a housing, an electromagnetic coil, a parameter acquisition module, a driving device and a control module; when an alternating current is applied to the electromagnetic coil, a varying alternating magnetic field is generated, the parameter acquisition module acquires the magnetic field strength in a heating cavity, and when the magnetic field strength is less than a preset magnetic field strength, the control module controls, by means of the driving device, the electromagnetic coil to move in the housing until a new magnetic field strength reaches the preset magnetic field strength. It can be seen that in the present application, when the magnetic field strength at the position where a ferromagnetic element in a cigarette is located is less than the preset magnetic field strength, the control module controls, by means of the driving device, the electromagnetic coil to move in the housing until the new magnetic field strength is the preset magnetic field strength, and at this time, the ferromagnetic element in the cigarette is located at the center position of the alternating magnetic field, so as to achieve the maximum heating efficiency of the electromagnetic heating cigarette device and improve the satisfaction of the user experience.

The application discloses a pot detection circuit and method of a global heating electromagnetic range and the electromagnetic range, and relates to the technical field of electromagnetic heating. The circuit comprises multiple groups of LC resonance circuits and an MCU control unit. Any group of LC resonance circuit is connected with a coupling feedback circuit and an inverter circuit. The first output end of the MCU control unit is connected with the input end of the coupling feedback circuit. The first output end of the coupling feedback circuit is connected with the LC resonance circuit. The second output end of the coupling feedback circuit is connected with the input end of the MCU control unit. The second output end of the MCU control unit is connected with the LC resonance circuit. The third output end of the MCU control unit is connected with the input end of the inverter circuit. The output end of the inverter circuit is connected with the LC resonance circuit. The application can detect whether the induction coil of the multiple LC resonance circuits of the global heating has a pot without interruption, can effectively improve the heating efficiency of the global heating electromagnetic range, and further improves the user experience.

The invention discloses an electromagnetic heating method and system and an intelligent electric appliance. The method comprises the steps that target temperature field data, initial heating frequency data and initial magnetic field intensity data corresponding to a to-be-heated object are acquired; determining first target heating frequency data based on first voltage data and first current data corresponding to the magnetic field generation unit under the initial heating frequency data; determining a position with the temperature data meeting a first preset condition in the temperature field as a target position; based on distance data and angle data between the magnetic field generation unit and the target position and area data of the magnetic field generation unit, optimizing the initial magnetic field intensity data to obtain first target magnetic field intensity data; and based on the first target heating frequency data and the first target magnetic field intensity data, controlling a magnetic field generation unit to generate a magnetic field so as to heat the to-be-heated object. According to the embodiment of the invention, the uniformity of electromagnetic heating can be improved, and the energy efficiency of electromagnetic heating can be improved.

The invention provides an aerosol generating device electromagnetic heating method, an electromagnetic heating circuit and an aerosol generating device.The aerosol generating device comprises a sensing body and a resonance circuit, and the electromagnetic heating method comprises the steps that under the condition that the aerosol generating device is in a preheating stage after heating is started, a PWM signal works at a first preset frequency, the PWM signal is used for driving the resonance circuit to generate an alternating magnetic field, so that the sensing body is heated, and then the aerosol generating substrate is heated to generate aerosol; determining whether the real-time temperature of the sensing body is greater than a preset preheating threshold; under the condition that the real-time temperature of the sensing body is determined to be larger than the preset preheating threshold value, the PWM signal works at a second preset frequency, and the second current of the resonance circuit at the second preset frequency is smaller than the first current of the resonance circuit at the first preset frequency. The electromagnetic heating power is controlled in a frequency hopping mode, so that the loss of the coil and / or other parts can be reduced while the rapid temperature rise of the susceptor is ensured.

The utility model relates to electromagnetic heating technical field discloses series connection type helical coil array's electromagnetic heating coil disc, including support board, the top fixed connection of support board has a plurality of coil framework combinations, the inside installation of coil framework combination has heating assembly, the bottom mounting of support board has supplementary assembly, heating assembly includes helical coil, helical coil installs in the inside of coil framework combination, and it is series connection between a plurality of helical coils, supplementary assembly includes magnetic stripe combination, and the bottom mounting of magnetic stripe combination in support board, in the utility model, when heating, the utensil is placed on the isolation mica piece, and the helical coil that starts series connection and close arrangement can rapidly produce uniform magnetic field, realizes wide -range uniform heating, reduces local overheating or deficiency. The magnetic stripe combination can increase coil inductance, gather magnetic force line, reduce leakage magnetism, improve efficiency and reduce interference, and can also supplement energy and increase output.

A magnetic suction heating type movable oil filtering device comprises a box body, an oil filter, a bracket, an oil pumping pipe and an oil filtering pipe, the box body and the oil filter are arranged on the bracket, a dirty oil inlet is formed in the top of the box body, and a clean oil outlet is formed in the bottom of the box body; an oil inlet of the oil filter is communicated with the bottom of the box body through an oil pumping pipe, and an oil outlet of the oil filter is communicated with the top of the box body through an oil filter pipe; a magnet is arranged at the bottom of an inner cavity of the box body, a heating device is fixed to the bottom face of the box body, a clamping hole is formed in the bracket, and the heating device is embedded into the clamping hole. According to the utility model, the magnetic suction device is additionally arranged, so that fine metal impurities contained in dirty oil are regularly removed after being adsorbed, and the cleanliness of a filtered oil product is improved; the electric heating device is additionally arranged, so that the flowability of sump oil in a cold environment is ensured, and the device can normally work in a low-temperature environment; and meanwhile, the device is matched with the dryer to remove moisture in the oil, so that the replacement period of hydraulic oil and lubricating oil is prolonged, and the cost is saved.

The application relates to an electromagnetic wave absorbing filament and a preparation method thereof, and belongs to the technical field of functional fibers. The preparation method of the application takes a magnetic stretching spinning system as an occurrence device, and comprises a double-screw extruder, a magnetic heating device and a multi-stage magnetic stretching device. The preparation method comprises the following steps: S1, marine plastic, nano inorganic magnetic material, nano modifier, filler, additive and silane coupling agent are added into the double-screw extruder and uniformly mixed, and functional masterbatch is obtained through granulation; the marine plastic is selected from PP plastic and / or PET plastic; S2, the functional masterbatch is subjected to magnetic heating through the magnetic heating device, and molten masterbatch is obtained; S3, the molten masterbatch passes through a pinhole plate, and nascent fibers are obtained; and S4, the nascent fibers are stretched through the multi-stage magnetic stretching device, and the electromagnetic wave absorbing filament with uniform distribution and excellent electromagnetic shielding capacity and other performances is obtained.

An electromagnetically heated glass kettle includes an electromagnetic heating body, a glass kettle body, a lid, a magnetically conductive metal plate, a heat insulation plate, a kettle base, a fastening ring with an opening, and a handle. The electromagnetic heating body includes a shell, a panel, a coil, a fan, a main control board, and a base. The magnetically conductive metal plate is fixedly attached to the bottom plate of the glass kettle body. An inner support base supports the heat insulation plate, and a radial pin is inserted into the inner support base. The glass kettle body is embedded in the kettle base, and a latch and a bottom annular groove are fitted together. The magnetically conductive metal plate is supported and cooperated with a right-angled bracket. The fastening ring is fitted into an upper annular groove, and the handle is connected to the fastening ring and the shell base. The kettle support base supports the kettle base, and there is a heat dissipation gap between the kettle base and the panel. Air is discharged through a group of heat dissipation vents, and the air is dissipated through the gap between the shell base and the panel. The heat insulation plate and the shell base adopt this structure, and a heat dissipation channel is formed between the shell base and the electromagnetic heating body, effectively reducing the temperature rise of the panel and the shell base.

The utility model discloses an electromagnetic cooling and heating device, which belongs to the technical field of electromagnetic heating and comprises a coil, the coil is an electromagnetic coil formed by spirally winding a hollow pipe, two ends of the coil are respectively provided with a coil liquid inlet and a coil liquid outlet, the coil liquid inlet is communicated with a liquid supply end, and the coil liquid outlet is communicated with a magnetized heating pipe. And the magnetized heating pipe is a hollow pipe and is wound in the coil. According to the structure, liquid entering the coil can dissipate heat of the coil so as to reduce the temperature of the coil during working and preheat the liquid at the same time, the magnetized heating pipe located in the coil can greatly receive the magnetic force of the magnetic field of the coil and generate heat, and the liquid entering the magnetized heating pipe can be comprehensively and uniformly heated; the magnetic heating pipe can discharge high-temperature steam or high-temperature liquid, heat resources are effectively utilized, resource waste is reduced, the liquid heating speed is high, the efficiency is high, and the magnetic heating pipe can be widely applied to household or commercial liquid heating equipment.

This invention provides a method for preparing a magnetically heated smoke-generating section, relating to the field of heated non-combustible cigarette technology, including the following steps: S1: feeding tobacco shreds; S2: introducing the suction belt; S3: using negative pressure to adsorb the tobacco shreds onto the suction belt to form a smoke-generating section strip; S4: sealing the edges of the smoke-generating section strip; S5: cutting and expelling smoke; In S1, the sensor and tobacco shreds are fed together into the suction area; In S3, the sensor and tobacco shreds are adsorbed onto the suction belt to form a magnetically heated smoke-generating section strip; In S5, the magnetically heated smoke-generating section strip is cut to obtain the magnetically heated smoke-generating section for smoke extraction. This invention directly adds a sensor implantation part to the existing suction forming equipment, effectively implanting the sensor into the smoke-generating section without changing the equipment. It not only retains the stable, efficient, and low-cost characteristics of suction forming, but also can prepare and produce for various types of tobacco shreds. The implanted sensor is also transported along with the suction belt, ensuring the inhalation temperature of the resulting smoke-generating section.

The invention discloses a calculation method for evaluating the energy efficiency of an electromagnetic heater, and the method comprises the steps: adding the influence of the heat absorbed by a medium, a stray magnetic field in a system, environment heat dissipation, a control system outside the system, and the cooling electric energy consumption of a machine room on the efficiency of the electromagnetic heater; according to the method, an ANSYS simulation calculation result is compared with the outer surface temperature and the heat dissipation loss rate of an electromagnetic heater model obtained through an experiment, and the surface temperature of a heat preservation layer obtained through simulation calculation and the outer surface temperature of a steel pipe with the exposed top are basically completely matched with the temperature measured through the experiment; the result provides a basis for calculating the accuracy of the heat flux density of the outer surface, and also verifies the reliability of the electromagnetic heater energy efficiency evaluation model, so that the energy efficiency evaluation result is more accurate.

The utility model discloses a heating device for a tire mold and the tire mold, and belongs to the technical field of tire vulcanization. The tire mold heating device comprises an electromagnetic heating frame, an electric heating coil and a magnetizer; the electromagnetic heating frame comprises an upper supporting ring, a lower supporting ring, a first connecting plate and a plurality of wire arranging combs; the two axial ends of the first connecting plate are connected with the upper supporting ring and the lower supporting ring correspondingly. The wire arranging comb is arranged on the outer side of the first connecting plate and is used for fixing the electric heating coil; the magnetizer is located on the outer side of the electric heating coil and fixed to the electromagnetic heating frame. The tire mold comprises the tire mold heating device. According to the tire mold heating device, the electromagnetic heating frame is used for bearing the electric heating coil and the magnetizer, so that the tire mold heating device can be modularly applied, and a plurality of petals are arranged on a tire mold; disassembly and assembly are simple, and installation and replacement time is short.

The utility model relates to the field of heating device discloses an electromagnetic heating device for injection molding machine, including material pipe protective sleeve shell, mix material pipe and electromagnetic heating group, the mix material pipe sets up in material pipe protective sleeve shell inner chamber, electromagnetic heating group sets up in material pipe protective sleeve shell, electromagnetic heating group includes first electromagnetic heating part, second electromagnetic heating part and third electromagnetic heating part, first electromagnetic heating part The second electromagnetic heating part and third electromagnetic heating part are all with control terminal electricity is connected. The utility model is arranged with multiple electromagnetic heating parts on mix material pipe, and each group of electromagnetic heating parts includes independently arranged heating pipe up and down, and the two poles of each heating pipe are connected with external high frequency power respectively, so that the electromagnetic coil generates alternating magnetic field, and the heat pipe generates high heat under the action of alternating magnetic field and transmits to mix material pipe, heats the material in different mixing stages in mix material pipe.

A magnetic heating apparatus which comprises a first rotor supporting first permanent magnets and a mating first rotor supporting second permanent magnets. The first and second permanent magnets both are arranged in alternating directions such that each pair of magnets, located directly on either side of any one of the first permanent magnets, have opposite polarities from a polarity of the magnet located therebetween. The first and the second permanent magnets are spaced from and define a panel passageway therebetween which facilitates passage of an assembled insulation panel, having a metallic core, therethrough. A first rotor drive rotates the first rotor, supporting the first permanent magnets, relative to the mating first rotor, supporting the second permanent magnets, to generate a changing magnetic field, in the panel passageway, for directly heating the metallic core of the assembled insulation panel as the panel passes therethrough without heating the non-metallic components.

The utility model relates to the technical field of stirrers, in particular to a magnetic heating stirrer which comprises a base, a controller and a heating disc are fixedly mounted on the surface of the base, a container is placed on the surface of the heating disc, a circular groove is formed in the surface of the base, a circular rod is slidably connected into the circular groove, and a magnetic heating device is arranged in the circular rod. And a frame is fixedly mounted at the top end of the round rod. According to the utility model, through the installation of the guide rod, the motion path of the push block is more stable, the mechanical wear caused by deviation is reduced, the durability and the stirring effect of the equipment are improved, meanwhile, the fastening design of the clamping block and the push block enables the clamping of a container to be more stable, and the container is prevented from shifting or falling off in the high-speed stirring process; and the adjustability of the electric telescopic rod and the temperature measuring head provides a flexible operation space for the equipment, it is ensured that a user can adjust the equipment according to actual requirements, and the applicability and flexibility of the equipment are further improved.

The invention discloses an electromagnetic heating roller and a winding method thereof.The electromagnetic heating roller comprises a roller body, a plurality of through holes are evenly formed in the circumferential direction of the roller body in a penetrating mode, and the number of the through holes is an even number; and the winding wires sequentially penetrate through the through holes and are wound on the roller body. The winding wire sequentially penetrates through the through holes, when the winding wire is powered on, the magnetic field density in the axial length direction of the roller body is completely consistent, the magnetic field offset phenomenon is not prone to being generated between the coils, and due to the fact that the coils at the two ends and the middle of the roller body are distributed consistently, the generation amount of induced current is consistent; the roller body generates relatively uniform eddy current when cutting alternating magnetic lines of force, the self impedance characteristic of the roller body realizes automatic heating and consistent temperature difference, and the problems of non-uniform heating and complex winding of an electromagnetic heating roller in the prior art are effectively solved.

The invention discloses an electromagnetic heating device and an electric cooker, the electromagnetic heating device comprises a coil assembly and a magnetic strip assembly, the coil assembly comprises a first coil part and a second coil part, and the second coil part is arranged in the circumferential direction of the first coil part and is connected to the first coil part; the magnetic strip assembly comprises magnetic strips, a first sub-frame and a second sub-frame, the first sub-frame and the second sub-frame are both provided with the magnetic strips, the first sub-frame is connected to the first coil part, and the second sub-frame is connected to the second coil part; the first sub-frame can move relative to the second sub-frame so as to change the relative position of the first sub-frame and the second sub-frame, so that the first sub-frame is matched with the first coil part, and the second sub-frame is matched with the second coil part. The relative positions of the first sub-frame and the second sub-frame can be adjusted according to the sizes of the first coil part and the second coil part, so that the coil assembly is suitable for coil assemblies of various sizes, the number of molds for manufacturing the first sub-frame and the second sub-frame is reduced, and the machining cost is reduced.

The invention relates to the technical field of optical fiber communication equipment, in particular to an intelligent temperature control heat shrink tube heating device and method for 12-core optical fiber splicing, and the device comprises a supporting and fixing module, a magnetic type heating execution module, an intelligent temperature control module, an induction triggering module, a portable power supply module and a protective portable module. The supporting and fixing module comprises a shell, a bottom plate, a supporting rod and a switch fixing plate; the bottom plate is fixed in the shell, the supporting rod is vertically fixed to the top of the bottom plate, and the body is fixed to the top of the bottom plate and embedded into the lower magnet. The switch fixing plate is fixed on one side of the bottom plate; the disassembly and assembly time of the magnetic heating assembly is less than or equal to 10 seconds, tool assistance is not needed, and the cleaning and maintenance efficiency of the heating plate is improved by 80%; the replaceable lining is adaptive to heat shrink tubes with different outer diameters, the universality is high, the 12-core independent heating channel and PID precise temperature control are adopted, the temperature deviation is smaller than or equal to 0.8 DEG C, the heat shrink tubes shrink uniformly, the connection loss dispersion is reduced to be within + / -0.01 dB, and the transmission stability is greatly improved.

The utility model discloses a permanent magnet heating device which comprises a motor, a transmission shaft, a fixing plate, a rotating disc, a monopole magnet, a monopole magnetic sheet, a fixing frame, a metal pipe, a water inlet and a water outlet. The motor is installed on the lower portion of the fixing plate, the output end of the motor is connected with the transmission shaft, the rotating disc is fixedly connected with the transmission shaft and provided with a circle of single-pole magnets, the single-pole magnets are provided with single-pole magnetic sheets, and the two ends of the metal pipe are connected with the water inlet and the water outlet. The monopole magnet and the monopole magnetic sheet are driven to rotate through the rotating disc, when the magnet rotates rapidly, the direction of a magnetic field around the magnet changes continuously, the changing magnetic field induces closed annular current in the metal tube, and the metal tube serves as a resistor to generate heat. The magnetic field generated by the monopole magnet is restrained through the monopole magnetic sheet, the magnetic field generated by the monopole magnet forms a closed magnetic circuit, the magnetic field intensity is improved, magnetic field leakage is reduced, the current generated by the metal pipe is increased, the heating efficiency is improved, and then liquid in the metal pipe is heated.

This invention relates to an electric furnace, comprising a furnace body, a magnetic heating plate, a connecting bracket disposed within the furnace body, and a coil assembly fixed to the bottom of the connecting bracket. The magnetic heating plate is fixed to the top of the connecting bracket, and the distance between the magnetic heating plate and the coil assembly is constant. The coil assembly, connecting bracket, and magnetic heating plate are encapsulated together to form a heating module. Fixing the magnetic heating plate, connecting bracket, and coil assembly together ensures a constant distance between the magnetic heating plate and the coil assembly, improving the stability of the magnetic field acting on the magnetic heating plate during operation. This guarantees the heating effect of the electric furnace while reducing energy loss. The coil assembly, connecting bracket, and magnetic heating plate, after assembly, form an integrated heating module, reducing the number of components required for overall furnace installation, lowering production costs. Furthermore, the assembly process is simple, production efficiency is high, and daily disassembly and maintenance are convenient, making it highly practical.

The utility model relates to the technical field of stirring devices, and discloses a magnetic heating stirrer with a height adjusting assembly, which comprises an equipment main body, a loading plate arranged in the middle of the top end of the equipment main body and a positioning assembly arranged at the rear part of the top end of the equipment main body, a movable cavity is formed in the inner edge of the mounting plate, four movable through grooves are evenly formed in the top wall face of the movable cavity in a penetrating mode, four movable sliding blocks are slidably connected into the four movable through grooves, and limiting mechanisms are arranged on the four movable sliding blocks. The limiting mechanism comprises four mounting supports fixedly connected with the top ends of the four movable sliding blocks and four limiting clamping plates fixedly connected with the ends, away from the four movable sliding blocks, of the four mounting supports, and an adjusting mechanism used for driving the four movable sliding blocks to move is arranged in the movable cavity. By arranging the limiting mechanism and the adjusting mechanism, the device can conveniently limit different containers, and the practicability of the device is improved.