JP2660571B2 - Heat transfer device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a heat transfer device used for heating with a radiator located away from a heat source.

(Prior Art) Conventionally, a heat pipe is used for this type of heat transfer.

(Problems to be Solved by the Invention) However, since the heat pipe transfers heat by evaporation, condensation and gravity of the fluid, the transfer direction is not limited by itself, but also transfers a large amount of heat. There are problems such as not being able to do.

An object of the present invention is to obtain a heat transfer device free of such a problem.

(Means for Solving the Problems) In order to achieve the object, the present invention provides a heat transfer device according to claim 1, wherein the other side of the thermoelectric conversion unit having one side facing the heat source and a heat radiating unit. A first magnetic fluid circulation path for circulating the magnetic fluid between the first and second magnetic fluids, and a thermoelectric converter for rotating a permanent magnet for applying an alternating magnetic field to the magnetic fluid in the first magnetic fluid circulation path. It is driven by the thermoelectromotive force of the element.

The heat transfer device according to claim 2 is the heat transfer device according to claim 1, wherein a second magnetic fluid circulation path that circulates a magnetic fluid between one side of the thermoelectric conversion unit and the heat source is provided.
A permanent magnet for applying an alternating magnetic field to the magnetic fluid in the first magnetic fluid circulation path, and applying an alternating magnetic field to the magnetic fluid in the second magnetic fluid circulation path.

(Operation) In the heat transfer device according to claim 1, having the above configuration, when one side of the thermoelectric conversion unit is heated by a heat source and a temperature difference is generated between both sides of the thermoelectric conversion unit, heat generation due to the Seebeck effect occurs. Generates power. Therefore, when the electric motor is rotated by the thermoelectromotive force, the permanent magnet rotates, whereby the alternating magnetic field acts on the magnetic fluid in the magnetic fluid circulation path and moves it in one direction along the magnetic fluid circulation path. Let it. At this time, the heat from the heat source side can be transferred to the heat radiating portion side by the magnetic fluid, and the heat is released from the heat radiating portion, and the cooled magnetic fluid returns to the heat source side. This is repeated to transfer heat.

In the heat transfer device according to the second aspect, the heat transfer device can be moved between the heat source and one side of the thermoelectric conversion element. That is, one side of the thermoelectric conversion element can be indirectly heated by the heat source.

(Example) An example of the present invention will be described with reference to a separate drawing.

In FIG. 1, 1 is a thermoelectric conversion unit, 2 is a heat source facing one side of the thermoelectric conversion unit 1, and 3 is a magnetic material extending between the other side 1 a of the thermoelectric conversion unit 1 and the radiator 4. 1 shows a first magnetic fluid circulation path for circulating fluid, and a permanent magnet 6 mounted on an electric motor 5 driven by an electromotive force of the thermoelectric conversion unit 1 is connected to the outside of the magnetic fluid circulation path 3, The rotation of the permanent magnet 6 causes an alternating magnetic field to act on the magnetic fluid in the first magnetic fluid circulation path 3 to move the magnetic fluid. In the drawing, reference numeral 7 denotes an aluminum block as a heat storage device.

In the above-described embodiment, the heat source 2 is made to directly face one side of the thermoelectric conversion unit 1. However, as shown in FIG. 2, the heat source 2 extends between one side of the thermoelectric conversion unit 1 and the heat source 2. A second magnetic fluid circulation path (8) for circulating a magnetic fluid is provided, and an alternating magnetic field from the permanent magnet (6) is applied to the magnetic fluid in the second magnetic fluid circulation path (8) to divide the magnetic fluid into the second magnetic fluid. By moving the inside of the magnetic fluid circulation path 8, it is also possible to indirectly heat one side of the thermoelectric conversion unit 1. In this case, when the amount of heat transferred to one side of the thermoelectric conversion unit 1 by the second magnetic fluid circulation path 8 has a margin, a heat radiating section 9 may be provided also in the second magnetic fluid circulation path 7. .

Preferably, the electric motor 5 is rotated clockwise.
In the embodiment shown in FIG. 1, in the embodiment shown in FIG. 1, the magnetic fluid whose temperature has fallen flows into the other side 1a of the thermoelectric conversion unit 1 by the heat radiating section 4, and the temperature of the magnetic fluid decreases between the thermoelectric conversion unit 1 and one side. In FIG. 2 which makes it easy to make a difference, a magnetic fluid having a high temperature immediately after being heated by the heat source 2 can be made to act on one side of the thermoelectric conversion unit 1, so that the magnetic fluid having a higher temperature can be made closer to one side of the thermoelectric conversion unit 1. A temperature difference is generated between the other side and the electromotive force of the thermoelectric conversion unit 1 can be increased.

The illustrated heat source 2 was a pot burner for burning kerosene.

(Effects of the Invention) The present invention is configured as described above, and has the following effects.

In the heat transfer device according to the first aspect, the magnetic fluid can be moved in the first magnetic fluid circulation path without requiring an external heat source, and the heat is transferred by the movement of the magnetic fluid. As a result, a relatively large amount of heat can be easily transferred to a distant place. In the heat transfer device of claim 2, it is not necessary to make a heat source directly face one side of the thermoelectric conversion unit, and the heat transfer to the heat source can be prevented. The degree of freedom in installing the conversion unit increases.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of one embodiment of the present invention, and FIG. 2 is an explanatory diagram showing another embodiment. DESCRIPTION OF SYMBOLS 1 ... Thermoelectric conversion unit 2 ... Heat source 3 ... 1st magnetic fluid circulation path 4 ... Heat radiating part 6 ... Permanent magnet, 8 ... 2nd magnetic fluid circulation path

Claims (2)

(57) [Claims] 1. A first device for circulating a magnetic fluid between another side of a thermoelectric conversion unit having a heat source on one side and a radiator.
A magnetic fluid circulation path, and a heat transfer device that drives a conductor rotating a permanent magnet for applying an alternating magnetic field to the magnetic fluid in the first magnetic fluid circulation path by the thermoelectromotive force of the thermoelectric conversion element. . 2. A second magnetic fluid circulation path for circulating a magnetic fluid between one side of a thermoelectric conversion unit and a heat source is provided.
2. The heat transfer according to claim 1, wherein an alternating magnetic field is applied to the magnetic fluid in the second magnetic fluid circulation path by a permanent magnet that applies an alternating magnetic field to the magnetic fluid in the first magnetic substance circulation path. apparatus.