WO2010114180A1 - Permanent magnet eddy current heating device - Google Patents

Abstract

Disclosed is a permanent magnet eddy current heating device that operates using kinetic energy from the outside, the device capable of heating with high energy use efficiency at low cost and easily controlling heating capability. Specifically disclosed is a permanent magnet eddy current heating device which, by rotational driving force generated by kinetic energy from the outside, rotates a rotator provided with a magnetic pole surface that is provided with a plurality of permanent magnets at predetermined locations and forms a magnetic field on the outside thereof to thereby cause a heater having a facing surface facing the magnetic pole surface with a predetermined distance therebetween and provided with a conductive material and a fluid heating path to generate an eddy current and Joule heat, heats the fluid flowing through the fluid heating path, and sends out the heated fluid, wherein the magnetic pole surface is a plane surface perpendicular to the rotation axis line of the rotator on the base end side thereof, and the fluid heating path forms a spiral plane curve along the facing surface at a predetermined depth from the facing surface.

Description

Permanent magnet type eddy current heating device

The present invention relates to an eddy current heating device that heats a fluid by converting kinetic energy from the outside into heat energy, and in particular, artificial drive energy of an electric motor, an internal combustion engine, etc., wind power, hydraulic power, wave power, etc. The present invention relates to a permanent magnet type eddy current heating apparatus for performing hot water supply, heating, etc. by heating a fluid with high efficiency and low cost by using natural fluid kinetic energy.

In recent years, where the increase in global warming gas due to the burning of fossil fuels has become a problem, the development of technologies using natural energy such as sunlight, wind power, hydropower, wave power, etc. has become active, and has been carried out in the past. In addition to hot water supply systems and power generation systems that use sunlight, many technologies have been developed that generate power using natural fluid kinetic energy such as wind and hydropower.
However, in the case of heating such as hot water supply or heating, fluid kinetic energy such as wind is once converted into electric power and then heated by an electric heating means. Since it is stable, it is necessary to secure the strength of the apparatus and to store electricity, so that the overall equipment cost increases. In addition, there is a problem that energy use efficiency is low because losses occur in each process of power generation, electricity storage, and heating, and the frequency of maintenance and costs are increased due to the complexity of the equipment and the high frequency of failures and damages. is there.
In order to solve this problem, a magnetic pole surface in which permanent magnets are arranged in the circumferential direction by alternately changing the polarity is provided on the outer periphery of a cylindrical rotor rotated by a driving force collecting means such as a windmill or a water turbine, The heating element is provided oppositely at an interval, and the surface facing the magnetic pole surface is formed of a magnetic plate, and the magnetic chamber is rotated to generate water in the water flow chamber inside the heating element while generating eddy currents in the magnetic plate. As a device for heating with Joule heat, a permanent magnet type eddy current heating device used for hot water supply or the like has been proposed in Japanese Utility Model No. 3016066.
In this way, by generating heat directly from the heating element while generating eddy currents with naturally derived fluid kinetic energy such as wind power and hydraulic power, the fluid kinetic energy is converted into electric power. Compared with the case of heating from above, natural energy can be used with higher efficiency than before, while keeping the initial cost low with a simple configuration.
On the other hand, the inventors of the present application have previously proposed a permanent magnet type eddy current heating device 2E as shown in FIG. 5 in JP-A-2005-174801. This is because the permanent magnet disposed on the magnetic pole surface on the outer periphery of the rotor 21C is divided into a first permanent magnet 219 having a substantially rectangular cross section in a plane orthogonal to the rotor rotation axis direction and a plane orthogonal to the rotor rotation axis direction. The second permanent magnets 220 having a wedge-shaped cross section are arranged so as to be alternately arranged in the circumferential direction of the rotor 21C, and the magnetization direction is as shown in the figure, and the outer peripheral side of the rotor 21C The fluid passage 211 attached to the heating body 20 </ b> C provided in the above is characterized in that it is formed in a coil shape (string winding shape) in which the rotor rotation axis and the central axis coincide with each other.
In the eddy current heating device, the permanent magnet on the magnetic pole surface is configured and arranged as described above, so that the rising of the lines of magnetic force can be increased and the heating efficiency due to eddy current can be improved. Since the shape of the fluid heating path of the heated body is coiled, the flow of heating water is lengthened and efficient and continuous heating is realized, so that it is more energy efficient and highly useful It has become.
However, in these eddy current heating devices, since the rotor in which the permanent magnets are arranged is formed in a columnar shape and is covered with a cylindrical heating body, the device is easily bulky as a whole. . In addition to this, it is not easy to control the heating capacity because of the use of unstable driving force derived from nature. For example, if the fluid kinetic energy such as wind becomes too strong, the heating element will be excessively hot. Will cause a failure or damage of the device.
In the latter eddy current heating device 2E, although the permanent magnet has a special shape as described above, the heating efficiency is increased. However, since a general-purpose magnet cannot be used, the cost tends to increase. Since the fluid heating path 211 is complicated in construction, it is not easy to create the heating element 20C, and the maintenance and labor for preventing leakage and clogging of the complicated fluid heating path 211 are excessive. It is easy to become.

Noto 3016066 gazette JP 2005-174801 A

The present invention is intended to solve the above-described problems, and realizes heating at low cost and high energy utilization efficiency for a permanent magnet eddy current heating device that operates using kinetic energy from the outside. In addition, an object is to easily control the heating capacity.

In view of this, the present invention provides a rotational driving force based on kinetic energy from the outside, and rotates a rotating body having a magnetic pole surface on which a plurality of permanent magnets are provided in a predetermined arrangement and forms a magnetic field on the outside. A permanent magnet that generates an eddy current and Joule heat in a heating body having a facing surface facing the surface at a predetermined interval and having a conductive material and a fluid heating path, and heats and sends the fluid flowing in the fluid heating path In the eddy current heating apparatus, the magnetic pole surface is a plane perpendicular to the rotation axis on the base end side of the rotating body, and the fluid heating path is spirally formed along the opposing surface at a predetermined depth from the opposing surface. A plane curve is formed.
In this way, the magnetic pole surface is a plane perpendicular to the rotation axis of the rotating body, and the fluid heating path is a spiral plane curve along the opposing surface, so that each heating body including the rotating body and the fluid heating path is provided. The flat configuration makes it difficult to bulk the whole, and the distance between the magnetic pole surface and the opposing surface of the heating element can be changed, making it easy to adjust the heating force and arranging it on the magnetic pole surface. In addition to making it possible to produce a rotating body at a low cost without the need for a special shape for the permanent magnet to be manufactured, the fluid heating path is also flat and the heating body can be created relatively easily, so that the manufacturing cost is kept low. A simple configuration makes it difficult to perform maintenance and cost.
Further, in this permanent magnet type eddy current heating device, if the kinetic energy is obtained from an electric motor or / and an internal combustion engine, artificial kinetic energy can be efficiently converted into fluid. In this case, the electric motor or / and the internal combustion engine is a motor for driving the vehicle, and is mounted on the vehicle and used as air conditioning means in the vehicle interior. The simple and compact configuration makes it easy to adjust the heating capacity with respect to fluctuations in vehicle speed while minimizing additional installation space and cost.
Further, in the permanent magnet type eddy current heating device described in claim 1, if the driving source of the kinetic energy is natural fluid kinetic energy, the natural structure can be obtained at low cost with a simple configuration. Energy can be used with high efficiency.
Furthermore, in the above-described permanent magnet type eddy current heating device, the magnetic pole surface is a circular plane whose center coincides with the rotation axis of the rotating body, and the opposing surface is a plane parallel to the magnetic pole surface. In addition, if the spiral plane curve by the fluid heating path is perpendicular to the extension line of the rotation axis and coincides with the center, it is possible to perform more efficient heating and make it more compact. it can.
In addition, in the permanent magnet type eddy current heating device described above, if the heating body is provided with an interval changing means for changing the interval between the opposing surface and the magnetic pole surface, a naturally occurring rotational driving force is provided. By changing the interval appropriately according to the fluctuation status of the eddy current, the amount of eddy current generated can be changed and the heating capacity can be easily adjusted, so that efficient and safe heating of the fluid can be performed. The permanent magnet eddy current heating device is provided with electronic control means for continuously detecting fluctuations in the heating capacity due to the heating body, and the electronic control means drives the interval changing means to control the heating capacity. If it is characterized by automatic control, the heating capacity is automatically adjusted and the fluid can be heated safely and efficiently.
In addition, in the above-described permanent magnet type eddy current heating device, the heating body forms a spiral plane curve by carving a groove at a predetermined depth from the fluid heating path forming surface of the heating body main body constituting the heating body. In addition, if the cover plate made of a conductive material is covered in close contact with the fluid heating path forming surface provided with the groove to close the open surface side of the groove, fluid heating can be easily performed with a relatively simple procedure. In this case, the fluid heating path is assumed to introduce the fluid from the outer periphery of the spiral plane curve and deliver the heated fluid from the center side. For example, in the spiral fluid heating path, the heating power on the outer peripheral side is higher than that on the central side, but it is easy to perform efficient heating while avoiding excessive heating on the central side.
In addition, in the above-described permanent magnet type eddy current heating device, the plurality of permanent magnets arranged on the magnetic pole face have their exposed end faces alternately having different polarities along the rotation direction of the magnetic pole face. If it is characterized, eddy currents are more likely to be generated, and more efficient heating can be performed.
In the above-described permanent magnet eddy current heating device, the generator / electric motor electrically connected to the power storage means is mechanically provided in the middle of the power transmission path connecting the driving force collecting means and the rotating body. Is connected in a state that can be connected to, by a predetermined connection switching means, the state where the driving force collecting means and the rotating body are directly connected, the state where the driving force collecting means and the generator / electric motor as a generator are connected, If the rotating body and the generator / electric motor as the electric motor are connected, the power transmission path is switched according to the magnitude of the rotational driving force. Thus, even if natural fluid kinetic energy is unstable, it becomes easy to heat a stable fluid.
In addition, the permanent magnet eddy current heating device described above should be used for hot water supply, heating, or cooling / heating because the fluid to be heated is stable and water or air that exists in large quantities in nature. If it is characterized by this, a stable hot-water supply function, heating function, or air-conditioning function can be achieved with low cost and effort.

According to the present invention, the magnetic pole surface of the rotating body is a plane perpendicular to the rotation axis, and a fluid heating path is formed by forming a spiral plane curve along the opposing surface facing the magnetic pole surface. In addition to realizing highly efficient heating, the heating capacity can be easily controlled.

FIG. 1 is a layout view of a hot water supply system in which a permanent magnet type eddy current heating device according to a first embodiment of the present invention is disposed.
FIG. 2 is a side view showing details of the permanent magnet eddy current heating apparatus of FIG.
FIG. 3 is a layout view of a hot water supply system in which a permanent magnet type eddy current heating device according to a second embodiment of the present invention is disposed.
4A, 4B, and 4C are perspective views showing examples of driving force collecting means connected to the permanent magnet eddy current heating device of the present invention.
FIG. 5 is a longitudinal sectional view showing a conventional permanent magnet eddy current heating apparatus.
FIG. 6 is a layout view of a hot water supply system in which a permanent magnet eddy current heating device as an application example of the embodiment of FIG. 3 is provided.
FIG. 7 is a layout view of a vehicle heating system provided with a permanent magnet eddy current heating device according to a third embodiment of the present invention.
8A and 8B are partial front views showing an example of magnet arrangement of magnetic pole faces different from those of the rotating body shown in FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the present invention, the driving force collecting means side is the distal end side and the opposite side (heating body side) is the proximal end side with reference to the direction of the rotation axis of the shaft of the permanent magnet eddy current heating device.
FIG. 1 shows a layout diagram of a hot water supply system 1A provided with a permanent magnet type eddy current heating device 2A according to a first embodiment of the present invention. This eddy current heating device 2A uses wind power, which is one of natural fluid kinetic energy, and includes a magnetic pole surface 21b with its rotational driving force while using a propeller (windmill) 5A as driving force collecting means. Rotating the rotating body 21 to generate eddy currents and Joule heat on the opposite surface 20b side of the heating body 20 disposed close to the magnetic pole surface 21b to heat and send water flowing in the fluid heating path 210 It is.
Further, in this hot water supply system 1A, water (hot water) heated by the eddy current heating device 2A is sent through the delivery pipe 7b, temporarily stored in the tank 3, and then sent out through the hot water supply pipe 7c to be used for hot water supply. The water whose temperature has dropped on the bottom side of the tank 3 is introduced into the eddy current heating device 2A through the introduction pipe 7a and is used for hot water supply so that the water is supplied to the tank 3 as much as the water level is lowered.
A generator 26A is arranged in the middle of the shaft 25 that connects the propeller 5A, which is a driving force collecting means, and the rotating body 21, and generates electric power when the shaft 25 is driven to rotate, and will be described later. Electric power is supplied to the slider 24, which is an interval changing means attached to the heating body 20 in order to change the interval between the unit 10 </ b> A and the rotating body 21, and the pump 4 that pumps hot water to the tank 3.
The rotating body 21 of the eddy current heating device 2A has a disk shape that is perpendicular to the rotation axis X that coincides with the center axis of the shaft 25 extending from the center of the propeller 5A, and that has a base end that is planar. The magnetic pole surface 21b is formed. On the other hand, the heating body 20 is also formed in a disk shape that is perpendicular to the extension line of the rotation axis X and coincides with the center axis line, and has a feature that the tip side is a plane parallel to the magnetic pole surface 21b of the rotation body 21. .
Thus, with respect to the rotation axis X (including its extension line), the disk-shaped rotation body 21 and the heating body 20 are arranged with the surfaces facing each other at right angles while matching the center axis, In the conventional example, the rotating body is a cylindrical rotor having a magnetic pole surface on the outer peripheral side, and the heating body provided with a fluid heating path is a cylindrical shape surrounding the rotor, whereas the apparatus is bulky as a whole In the present embodiment, as shown in the drawing, it can be implemented with a relatively simple configuration and without being bulky as a whole.
FIG. 2 is a side view for explaining the details of the eddy current heating device 2A of FIG. 1, and constitutes a front view of the magnetic pole surface 21b on the base end side of the rotating body 21 and a facing surface 20b opposite thereto. Front views of the fluid heating path forming surface 200a provided with the fluid heating path 210 with the cover plate 22 made of the conductive material removed are respectively indicated by pulling arrows.
The magnetic pole surface 21b formed into a circular plane rotates a plurality of permanent magnets 212 which are cylindrical and are magnetized in the height direction and have an S pole on the exposed surface side and a plurality of permanent magnets 213 on the exposed surface side which are N poles. A plurality of concentric circles are embedded in a planar shape while being arranged so as to have different polarities alternately along the rotation direction of the body 21.
On the other hand, the fluid heating path 210 has a rotation axis X that is parallel to the magnetic pole face 21b on a planar fluid heating path forming surface 200a that closely contacts the lid plate 22 of the heating body main body 20a that is a disk-shaped member. A groove is carved so as to form a spiral (mosquito-repellent incense-like) plane curve that is perpendicular to the extension line and coincides with the center.
As described above, the eddy current heating device 2A of the present embodiment, which has a relatively simple configuration and is not as bulky as the conventional example, rotates the shaft 25 with the propeller 5A that receives natural fluid kinetic energy, and rotates in a disk shape. The body 21 is rotated with its central axis as the rotation axis, and the base end side magnetic pole surface 21b rotates like a record board, so that the opposing surface of the heating body 20 disposed opposite to this by a predetermined distance. An electric current is generated in the cover plate 22 made of a conductive material that constitutes 20b and Joule heat is generated, and water flowing in the fluid heating path 210 formed in a plane spiral attached thereto is efficiently discharged. It is for heating.
Further, in the eddy current heating apparatus 2A of the present embodiment, the distance (interval) between the opposing surface 20b of the disc-shaped heating body 20 and the magnetic pole surface 21b is a slider 24 that is an interval changing means attached to the heating body 20. It can be changed by operating. The slider 24 includes a step motor 24a that is driven and operated by an electronic control unit 10A attached to the eddy current heating device electronics 2A, a bolt-shaped rotating shaft 24b that extends from the step motor 24a, and a rotating motor 24a. A support arm 24c that moves up and down via a nut-like member by the rotation of the moving shaft 24b, and a guide bar 24d that passes through the support arm 24c and guides its operation in the vertical direction.
Then, the electronic control unit 10A that detects the water temperature in the tank 3 and the water temperature immediately after the heating with the temperature sensors 11 and 12 and detects the power generation amount of the generator 26A provided in the middle of the shaft 25 is detected data. Based on the above, the distance between the magnetic pole surface 21b and the opposing surface 20b is automatically adjusted while driving the slider 24 according to the heating capacity based on the strength of the wind force and the current water temperature state, and the optimum heating capacity Automatic control is performed so that efficient heating by eddy current can be realized.
Further, the fluid heating path 210 is formed by engraving a groove at a predetermined depth from the surface of the smooth fluid heating path forming surface 200a on the distal end side of the heating body main body 20a made of a disk-shaped member as described above, so that the outer diameter is a magnetic pole. After providing a flow path that forms a spiral plane curve that substantially coincides with the outer diameter of the surface 21b, a cover plate 22 made of a conductive material is closely attached and fixed thereon, and the open surface side of the groove is set on the inner and outer sides. It is formed by liquid-tightly closing.
Therefore, as compared with the case where the fluid heating path 211 is provided in a string form on the outer peripheral side of the rotor 21C as in the conventional example shown in FIG. 5, the heating body 20 can be manufactured very easily, and the manufacturing cost is kept low. . In addition, since the fluid heating path 210 has a simple planar configuration as described above, leakage of water due to corrosion or the like can be minimized, and the lid plate 22 can be attached and detached with bolts or the like. Since the fluid heating path 210 can be easily cleaned by removing the cover plate 22, for example, it is suitable for maintaining the hot water temperature in a 24-hour bath, for example, where accumulation of scale is likely to be a problem. Further, in this fluid heating path 210, the rotation speed of the opposing magnetic pole surface 21b is high on the outer peripheral side and slows on the central side, and the heating capacity is high on the outer peripheral side and lower on the central side. Is introduced into the tank 3 from the center side, and efficient heating is facilitated while avoiding an excessive rise in water temperature on the center side.
In addition, if the tank 3 for storing hot water is made of a material excellent in internal and external heat insulation so that the optimum hot water temperature is maintained for a long time, the wind is strong and the rotational driving force and heating capacity are large. By sufficiently raising the amount and temperature of the amount of water stored in the tank 3 in the obtained time zone, a good hot water supply function is exhibited even in a time zone where the wind is weak and sufficient rotational driving force cannot be obtained. .
FIG. 3 shows a layout view of a hot water supply system 1B provided with an eddy current heating device 2B according to the second embodiment of the present invention. The basic configuration of the present embodiment is substantially the same as that of the hot water supply system 1A described above, but the eddy current heating device 2B includes a generator / electric motor 26B on a shaft 25 that transmits a rotational driving force to the rotating body 21. On the other hand, it is provided so that it can be switched between a connected state and a disconnected state of power via a gear box 28 as a connection switching means, and a battery 29 as a power storage means is provided. It is characterized in that the electric motor 26B is electrically connected.
That is, the gear box 28 and the generator / electric motor 26B are controlled by the electronic control unit 10B attached to the eddy current heating device 2B, and the propeller 5A side and the rotating body 21 are connected, the propeller 5A side and the generator. Are automatically switched between the state where the generator / electric motor 26B is connected and the state where the rotating body 21 side is connected to the generator / electric motor 26B as the electric motor.
Thus, for example, when abundant wind power can be obtained in a situation where sufficient temperature and amount of hot water is accumulated in the tank 3, the rotational driving force by the propeller 5A is not transmitted to the rotating body 21, and the generator as a generator is generated. When the battery 29 is charged by connecting to the electric motor 26B and sufficient wind power cannot be obtained in a situation where sufficient temperature / amount of hot water is not accumulated in the tank 3, the electric electric motor 26B as an electric motor is obtained. Can be connected to the rotator 21 and the electric motor 26B can be driven by the electric power stored in the battery 29 to perform the necessary heating.
On the other hand, in a situation where moderate wind power is obtained and the battery 29 has a sufficient amount of electricity stored, heating is necessary, and the propeller 5A and the rotating body 21 can be directly connected to perform heating. In this way, safe and stable heating is possible even when wind power fluctuates rapidly by appropriately switching the power transmission path according to the situation of the rotational driving force that tends to be unstable depending on the natural force. A good hot water supply function is easily maintained while performing.
In the case where abundant wind power can be obtained in a situation where sufficient temperature and quantity of hot water is accumulated in the tank 3, if the battery 29 is also sufficiently charged, the generator / electric motor 26B as a generator is installed. The electric power generated by driving is sold to an electric power company, or the electronic control unit 10B appropriately controls so that the rotating body 21 is rotated but is not heated away from the heating body 20. That's fine.
4 (A), (B), and (C) are common to the eddy current heating devices 2A and 2B of the first embodiment and the second embodiment described above, and are mounted on the shaft 25. The example of a change of a force collection means is shown. FIG. (A) shows a vertical axis wind turbine 5B, which is characterized in that the propeller 5A described above is difficult to cope with changes in the direction of the wind, but can cope with winds blowing from all directions.
Further, FIG. (B) shows a water wheel 5C that rotates with a water flow in a direction perpendicular to the rotation drive shaft, and FIG. (C) shows a screw 5D that rotates with a water flow along the rotation drive shaft. When the eddy current heating device is located close to the water flow such as a river or irrigation canal, its hydropower is used, and it features a relatively stable rotational driving force compared to wind power. By connecting and using the shaft with a connecting means such as the universal joint 250 while changing the angle, the driving force can be collected while matching the position and direction of the water flow.
In the above-described embodiment, the case where water is heated and used for hot water supply has been mainly described. However, the present invention is not limited to this purpose. For example, the water is used for heating by heating water. It is also possible to cool using warm water. Moreover, it is also possible to heat the air instead of water with the same configuration and use it for heating indoors or greenhouses.
FIG. 6 shows an application example of a hot water supply system 1B provided with the eddy current heating device 2B of FIG. As described above, the eddy current heating device of the present invention that heats the fluid by generating an eddy current on the heating body side by rotating the rotating body on which the permanent magnet is arranged is a case where the fluid is heated by heating the fluid. Compared to heating the fluid just by rotating the permanent magnet without generating heat, it is extremely energy efficient, and it has an excessively high temperature part and high voltage part that are likely to cause a combustion accident. It is safe in that there is no point. Therefore, in addition to using natural fluid kinetic energy as in the above-described embodiment, it is also useful in heating fluid using a rotational driving force derived from electric power or fuel, such as an electric motor or an internal combustion engine. It is highly probable.
Therefore, in the eddy current heating device 2C of FIG. 6, the driving force collecting means including the propeller 5A in the eddy current heating device 2B of FIG. 3 is eliminated, and the rotating body 21 is rotated only by the rotational driving force of the electric motor 26C. It is a thing. In this case, since the heating capacity can be easily controlled by controlling the rotation speed of the electric motor 26C, the slider 24 is unnecessary and the configuration is simpler. In the present embodiment, power supply via the power input unit 31 is required. However, a battery type or a commercial power / battery combination type may be used, or an internal combustion engine may be used instead of the electric motor 26C. Also good.
FIG. 7 shows a layout view of an air conditioning system 1D provided with an eddy current heating device 2D, which is a third embodiment of the present invention. In the present embodiment, it is assumed that the air conditioner is used for an electric vehicle using only an electric motor as a prime mover or a hybrid vehicle using an electric motor and an internal combustion engine as a prime mover. That is, in these vehicles, since the power consumption required for air conditioning, particularly heating, greatly affects the travelable distance and fuel consumption, by using the eddy current heating device 2D according to the present invention as air conditioning means, It is intended to realize high energy efficiency at a low cost and to achieve easy adjustment of the fluid heating force.
In the eddy current heating device 2D according to the present embodiment, the rotating body 21 is rotated by using the rotation driving portion of the vehicle. For example, the rotating shaft extending from the rear wheel 102 of the front wheel driving vehicle as shown in the figure By providing the rotating body 21 on the end side, the rotational driving force can be easily obtained. However, by adopting a configuration in which the distance between the rotating body 21 and the heating body 20 can be adjusted by the slider 24, the vehicle speed The heating power can be easily adjusted while responding to the fluctuations. In the present embodiment, the air in the vehicle compartment 100 is introduced into the heating body 20 and directly heated, but water may be used as a medium to heat the air via a predetermined heat exchange means.
FIGS. 8A and 8B show examples of magnet arrangement with magnetic pole faces different from those of the rotating body shown in FIG. In FIG. (A), permanent magnets 214 and 215 formed in a fan shape and having different polarities on the exposed end side are arranged, and in FIG. (B), permanent magnets 216, 217, and 218 whose exposed end side is rectangular are arranged radially. In each case, the exposed end side of the arranged permanent magnet has alternately different polarities along the rotation direction of the circular magnetic pole surface. It can be demonstrated.
As described above, for the permanent magnet eddy current heating apparatus using a predetermined kinetic energy, the present invention can realize heating with high energy utilization efficiency at low cost and easily control the heating capacity. became.

1A, 1B, 1C Hot water supply system 1D Air conditioning system 2A, 2B, 2C, 2D Eddy current heating device 3 Tank 4 Pump 5A Propeller 5B Vertical axis windmill 5C Water wheel 5D Screw 7a Introduction pipe 7b Delivery pipe 7c Hot water supply pipes 10A, 10B, 10C, 10D electronic control unit 11, 12, 13, 14 Temperature sensor 20 Heating body 20a Heating body main body 20b Opposing surfaces 21, 21B, 21C Rotating body 21a Rotating body main body 21b Magnetic pole surface,
22 Lid Plate 24 Slider 25 Shaft 26A Generator 26B Generator / Electric Motor 26C Electric Motor 28 Gear Box 29, 30 Battery 200a Fluid Heating Path Forming Surface 210 Fluid Heating Path 212, 213, 214, 215, 216, 217, 218 Permanent magnet

Claims (12)

1. By rotating a rotating body provided with a plurality of permanent magnets in a predetermined arrangement and having a magnetic pole surface forming a magnetic field on the outside by a rotational driving force by external kinetic energy, the magnetic pole surface is rotated at a predetermined interval. A permanent magnet type eddy current heating device that generates eddy current and Joule heat in a heating body having an opposing surface and having a conductive material and a fluid heating path, and heats and sends the fluid flowing in the fluid heating path. The magnetic pole surface is a plane perpendicular to the rotation axis of the rotating body on the base end side of the rotating body, and the fluid heating path is spirally formed along the facing surface at a predetermined depth from the facing surface. The permanent magnet type eddy current heating device is characterized in that a plane curve is formed.
2. The permanent magnet eddy current heating device according to claim 1, wherein the kinetic energy is obtained from an electric motor and / or an internal combustion engine.
3. The permanent magnet eddy current heating according to claim 2, wherein the electric motor and / or the internal combustion engine is a prime mover for a vehicle, and is used as an air conditioning unit mounted in the vehicle. apparatus.
4. The permanent magnet eddy current heating device according to claim 1, wherein the driving source of the kinetic energy is natural fluid kinetic energy.
5. The magnetic pole surface is a circular plane whose center coincides with the rotational axis of the rotating body, the opposing surface is a plane parallel to the magnetic pole surface, and a spiral shape formed by the fluid heating path. The permanent magnet type eddy current heating device according to claim 1, 2, 3, or 4, wherein the plane curve is perpendicular to the extension line of the rotation axis and coincides with the center.
6. The permanent magnet type according to any one of claims 1, 2, 3, 4 or 5, wherein an interval changing means for changing an interval between the opposing surface and the magnetic pole surface is attached to the heating body. Eddy current heating device.
7. The electronic control means for continuously detecting fluctuations in heating capacity due to the heating body, wherein the electronic control means automatically controls the heating capacity by driving the interval changing means. The permanent magnet type eddy current heating device described in 6.
8. The heating body forms a spiral plane curve by carving a groove at a predetermined depth from the fluid heating path forming surface of the heating body main body constituting the heating body, and forming the fluid heating path provided with the groove 8. The cover according to claim 1, 2, 3, 4, 5, 6 or 7, wherein a cover plate made of the conductive material is covered in a close contact state to close the open surface side of the groove. Permanent magnet type eddy current heating device.
9. 9. The permanent magnet eddy current heating according to claim 8, wherein the fluid heating path introduces a fluid from an outer peripheral side of the spiral planar curve and delivers the heated fluid from a center side. apparatus.
10. The plurality of permanent magnets arranged on the magnetic pole face have different polarities alternately on the exposed end side along the rotation direction of the magnetic pole face. , 5, 6, 7, 8 or 9 Permanent magnet type eddy current heating device.
11. In the middle of the power transmission path connecting the driving force collecting means and the rotating body, a generator / electric motor electrically connected to the power storage means is disposed in a mechanically connectable state, With the predetermined connection switching means, the driving force collecting means and the rotating body are directly connected, the driving force collecting means and the generator / electric motor as a generator are connected, the rotating body and the electric motor as The switch according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, wherein the generator / electric motor can be switched between connected states. Permanent magnet type eddy current heating device.
12. The fluid according to claim 1, wherein the fluid to be heated is water or air and is used for hot water supply, heating or cooling / heating. , 9, 10 or 11. Permanent magnet type eddy current heating device.

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