Permanent magnet heating device

Abstract

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.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic energy heating technology, and specifically relates to a permanent magnet heating device. Background Technology

[0002] Permanent magnet heating devices are a technology that uses the principle of electromagnetic induction to generate eddy currents in conductive materials and achieves efficient heating through resistance loss. It is also known as induction heating or eddy current induction heating and is widely used in industries, household appliances, and material processing. Compared with traditional heating methods, it has advantages such as non-contact operation, high efficiency, and strong controllability.

[0003] A search revealed a magnetic energy heating device with prior art authorization announcement number CN221948368U, which heats the interior of a heating container by controlling the formation of magnetic field lines inside the induction coil. However, the magnetic field lines are located on the outer ring of the heating container, resulting in uneven heating and heat waste. Another prior art authorization announcement number CN220252956U describes a composite material permanent magnet ring, permanent magnet tube, permanent magnet motor, and heater. In this device, a metal wire moves along the axial direction of the permanent magnet tube, which rotates rapidly around its axis under external power to create a rotating magnetic field, inducing eddy current heating in the metal wire. However, the magnetic field is not constrained during heating, leading to leakage and affecting heating efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a permanent magnet heating device. By rotating a magnet, a change in magnetic field is generated, and the change in magnetic field generates an induced current that heats the metal tube. By setting a single-pole magnetic sheet to constrain the magnetic field, the magnetic field strength is increased and magnetic field leakage is reduced, thereby increasing the current generated in the metal tube, improving heating efficiency, and thus heating the liquid inside the metal tube.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A permanent magnet heating device includes a motor, a drive shaft, a fixed plate, a rotating disk, a monopole magnet, a monopole magnetic sheet, a fixed frame, a metal pipe, a water pump, a bracket, a water inlet, and a water outlet; the motor is installed on the lower part of the fixed plate, the output end of the motor is connected to the drive shaft, the drive shaft and the fixed plate are rotatably connected by bearings, and the other end of the drive shaft is provided with a rotating disk, which is fixedly connected to the drive shaft.

[0007] The outer ring of the rotating disk is provided with several groups of monopole magnets. The monopole magnets are arranged in pairs and are distributed equidistantly around the rotating disk. The magnetic poles of adjacent monopole magnets are opposite. The monopole magnets are provided with monopole magnetic plates. The magnetic poles of the monopole magnetic plates are opposite to the magnetic poles of the monopole magnets. The magnetic field generated by the monopole magnets is constrained by the monopole magnetic plates.

[0008] The fixture is provided in three parts, which are equidistantly distributed in a circle around the drive shaft. The lower part of the fixture is fixed to the fixing plate. The fixture is higher than the monopole magnet set on the rotating disk. The hollow metal tube in the middle of the fixture is set inside the fixture. At the same time, the metal tube is located directly above the monopole magnet. The fixture ensures the height of the metal tube so that the magnetic field generated by the monopole magnet can pass through the metal tube without affecting the rotation of the monopole magnet and the monopole magnetic sheet.

[0009] The metal tube is made of a high conductivity material. The tube wall can generate an induced current with the magnetic field. The metal tube needs to withstand liquid pressure, thermal expansion stress, and vibration. If the tube wall is too thin, it is easy to deform or break. If the tube wall is too thick, the current generated by the change in magnetic field will be concentrated on the surface of the conductor, resulting in material waste and reduced heating efficiency. The metal tube is spirally arranged above the monopole magnet. The width of one side of the spiraled metal tube is equal to the length of the monopole magnet, ensuring that the magnetic field generated by the monopole magnet passes through the metal tube. The two ends of the metal tube are connected to the inlet and outlet. A water pump is installed at one end of the inlet. The water pump is fixed on the bracket, and the bracket is fixed on the fixing plate.

[0010] The advantages of this utility model compared with the prior art are as follows:

[0011] The rotating disk drives the monopole magnet and monopole magnetic plate to rotate. When the magnet rotates rapidly, the direction of the magnetic field around it changes continuously. The changing magnetic field induces a closed loop current in the metal tube, and the metal tube heats up as a resistor. The monopole magnetic plate constrains the magnetic field generated by the monopole magnet, forming a closed magnetic circuit, increasing the magnetic field strength and reducing magnetic field leakage. This increases the current generated in the metal tube, improves the heating efficiency, and thus heats the liquid inside the metal tube. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the structure of a permanent magnet heating device according to this utility model. Figure 1 ;

[0013] Appendix Figure 2 This is a schematic diagram of the structure of a permanent magnet heating device according to this utility model. Figure 2 ;

[0014] Appendix Figure 3 This is a schematic diagram of the structure of a permanent magnet heating device according to this utility model. Figure 3 ;

[0015] Appendix Figure 4 This is an exploded structural diagram of a permanent magnet heating device according to this utility model;

[0016] Appendix Figure 5 This is a schematic diagram of the structure of a permanent magnet heating device according to this utility model. Figure 4 ;

[0017] Appendix Figure 6 This is a schematic diagram of the structure of a permanent magnet heating device according to this utility model. Figure 5 ;

[0018] In the diagram: 11. Motor; 12. Drive shaft; 13. Fixing plate; 14. Rotating disk; 15. Monopole magnet; 16. Monopole magnetic sheet; 17. Fixing frame; 18. Metal pipe; 19. Water pump; 20. Bracket; 21. Water inlet; 22. Water outlet. Detailed Implementation

[0019] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-6 The technical solution of this utility model will be further described in detail below.

[0020] A permanent magnet heating device includes a motor 11, a drive shaft 12, a fixed plate 13, a rotating disk 14, a monopole magnet 15, a monopole magnetic sheet 16, a fixed frame 17, a metal pipe 18, a water pump 19, a bracket 20, a water inlet 21, and a water outlet 22. The motor 11 is installed on the lower part of the fixed plate 13, and the output end of the motor 11 is connected to the drive shaft 12. The drive shaft 12 and the fixed plate 13 are rotatably connected through bearings. The other end of the drive shaft 12 is provided with a rotating disk 14, and the rotating disk 14 is fixedly connected to the drive shaft 12.

[0021] The outer ring of the rotating disk 14 is provided with several groups of monopole magnets 15. The monopole magnets 15 are arranged in pairs and are distributed equidistantly in a circle with the rotating disk 14 as the center. The magnetic poles of adjacent monopole magnets 15 are opposite. Monopole magnets 15 are provided with monopole magnetic plates 16. The magnetic poles of the monopole magnetic plates 16 are opposite to those of the monopole magnets 15. The magnetic field generated by the monopole magnets 15 is constrained by the monopole magnetic plates 16.

[0022] Three fixing frames 17 are provided, and the three fixing frames 17 are equidistantly distributed in a circle around the transmission shaft. The lower part of the fixing frame 17 is fixed on the fixing plate 13. The fixing frame 17 is higher than the monopole magnet 15 set on the rotating disk 14. The hollow metal tube 18 in the middle of the fixing frame 17 is set inside the fixing frame 17. At the same time, the metal tube 18 is located directly above the monopole magnet. The fixing frame 17 ensures the height of the metal tube 18 so that the magnetic field generated by the monopole magnet 15 can pass through the metal tube without affecting the rotation of the monopole magnet 15 and the monopole magnetic sheet 16.

[0023] The metal tube 18 is made of a high conductivity material. The wall of the metal tube 18 can generate an induced current with the magnetic field. The metal tube 18 needs to withstand liquid pressure, thermal expansion stress, and vibration. If the wall of the metal tube is too thin, it is easy to deform or break. If the wall of the metal tube is too thick, the current generated by the change of magnetic field will be concentrated on the surface of the conductor, resulting in material waste and reduced heating efficiency. The metal tube 18 is spirally arranged directly above the monopole magnet 15. The width of one side of the spiraled metal tube 18 is equal to the length of the monopole magnet 15, ensuring that the magnetic field generated by the monopole magnet 15 passes through the metal tube 18. The two ends of the metal tube 18 are connected to the inlet 21 and the outlet 22. A water pump 19 is provided at one end of the inlet 21. The water pump 19 is fixed on the bracket 20. The bracket 20 is fixed on the fixing plate 13.

[0024] A permanent magnet heating device, the working process is as follows:

[0025] Water to be heated is pumped into the metal tube through the inlet by the water pump 19. The motor 11 operates, controlling the drive shaft 12 to rotate. The drive shaft 12 drives the rotating disk 14 to rotate, which in turn drives the monopole magnet 15 and the monopole magnetic plate 16 to rotate. When the magnet rotates rapidly, the direction of the magnetic field around it changes continuously. The changing magnetic field induces a closed loop current in the metal tube 18. The metal tube 18 acts as a resistor to generate heat, heating the liquid inside the metal tube 18. The magnetic field generated by the monopole magnet 15 is constrained by the monopole magnetic plate 16, forming a closed magnetic circuit, increasing the magnetic field strength and reducing magnetic field leakage. This increases the current generated in the metal tube 18, improving heating efficiency and thus heating the liquid inside the metal tube 18 more quickly. The heated liquid flows out from the outlet 22.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] In summary, the electronic or electrical components, including but not limited to motors, are existing components that were custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this utility model.

[0028] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A permanent magnet heating device, comprising a motor, a transmission shaft, a fixed plate, a rotating disc, a single-pole magnet, a single-pole magnetic sheet, a fixed frame, a metal pipe, a water pump, a support, a water inlet, and a water outlet; characterized in that The motor is installed at the lower part of the fixed plate, the output end of the motor is connected with a transmission shaft, the transmission shaft is rotatably connected with the fixed plate through a bearing, the other end of the transmission shaft is provided with a rotating disc, and the rotating disc is fixedly connected with the transmission shaft; A plurality of groups of single-pole magnets are arranged on the outer ring of the rotating disc, the single-pole magnets are arranged in pairs, are distributed at equal intervals around the rotating disc as the center, and the poles of adjacent single-pole magnets are opposite; a single-pole magnetic sheet is arranged on the single-pole magnet, the pole of the single-pole magnetic sheet is opposite to the pole of the single-pole magnet, and the magnetic field generated by the single-pole magnet is restrained through the single-pole magnetic sheet.

2. A permanent magnet heating device according to claim 1, characterized in that The fixed frame is provided with three fixed frames, the three fixed frames are distributed at equal intervals around the transmission shaft as the center, the lower part of the fixed frame is fixed on the fixed plate, the fixed frame is higher than the single-pole magnet arranged on the rotating disc, a hollow metal pipe is arranged in the fixed frame, the metal pipe is located directly above the single-pole magnet, the fixed frame ensures the height of the metal pipe, and the magnetic field generated by the single-pole magnet can pass through the metal pipe without affecting the rotation of the single-pole magnet and the single-pole magnetic sheet.

3. A permanent magnet heating device according to claim 1, characterized in that The metal pipe is made of a high-conductivity material, the pipe wall of the metal pipe can generate an induced current with the magnetic field, the metal pipe needs to bear liquid pressure, thermal expansion stress and vibration, the metal pipe is spirally arranged directly above the single-pole magnet, the width of the metal pipe after spiraling is equal to the length of the single-pole magnet, the magnetic field generated by the single-pole magnet can pass through the metal pipe, the two ends of the metal pipe are connected with a water inlet and a water outlet, a water pump is arranged at one end of the water inlet, and the water pump is fixed on a support, and the support is fixed on the fixed plate.

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