JPS6256408B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat storage and heat dissipation device in which a heat transfer layer is interposed between a heat storage tank mainly composed of a heat storage material and a radiator having a heat dissipation surface.

Devices of this type have applications, for example, as floor heaters and wall heaters. The heat storage material used in this device is a latent heat storage material that uses the heat of fusion between solid and liquid, or a sensible heat storage material that uses specific heat such as ice or bricks, but generally the heat storage material per unit volume is The former is more advantageous because the amount is larger and the change in temperature of the heat storage material during heat storage and release is not proportional to the amount of heat storage and release. Further, as a heat source for heating this heat storage material, late-night electricity is used in the case of nighttime heat storage, and solar heat or the like is used in the case of daytime heat storage.

By the way, when this kind of heat storage and heat dissipation device is used as a floor or wall heater, for example, it is possible to store heat by using low-cost late-night electricity, and to store heat at a time when there is a large demand for heat in the evening of the next day. It is required that it can be used in a manner that radiates heat. However, if we rely on the simple method of leaving the heat dissipation from the heat storage material to natural heat dissipation, we can show that heat dissipation starts from the time heat is stored in the heat storage material, and the temperature of the heat dissipation surface of the radiator decreases over time. , cannot satisfy the above requirements.

Currently, as a means to meet these demands,
As shown in Publication No. 53-24655, a cylindrical body filled with hydraulic oil capable of transporting heat is inserted into and out of the heat storage material, and the amount of insertion of the cylindrical body into the heat storage material is adjusted. Means for artificially controlling the amount of heat released from heat storage materials has been proposed. However,
In this method, it is impossible to insert a cylinder when a sensible heat storage body such as a brick is used as the heat storage material, and even when a latent heat storage body that utilizes the heat of fusion between solid and liquid is used. This is because the heat storage material is individualized near the surface, making it difficult to insert the cylinder, which is a fatal drawback in actual implementation.

In this respect, the present invention artificially adjusts the heat radiation from the heat storage material by skillfully devising the structure of the heat transfer layer interposed between the heat storage layer mainly composed of the heat storage material and the radiator. This provides a useful means that can simultaneously solve the difficulties in implementation such as those of the above-mentioned means.

That is, in the heat storage and heat dissipation device provided by the present invention, the heat transfer layer is formed in a structure in which a material with high thermal conductivity and a material with low thermal conductivity are brought into opposing contact with each other, and at least one of the heat storage and transfer layers is The main feature is that the geometric position of the heat transfer layer can be changed relative to other heat transfer layer sections, thereby making it possible to vary the thermal conductivity of the entire heat transfer layer.

Embodiments of the present invention will be described below based on the drawings. FIG. 1 shows a cross-sectional view of a heat storage and heat dissipation device of the present invention configured for use in a floor heater. The heat storage material 1 is housed in a heat storage material container 3 together with an electric heater 2 to form a heat storage layer. As the heat storage material 1, for example, sodium acetate (CH ₃ COONa・
3H ₂ O) is used. A heat insulating material 4 is attached to the lower part of the heat storage layer mainly composed of this heat storage material to prevent heat dissipation downward. On the other hand, a heat radiator 6 made of a material with good thermal conductivity is provided above the heat storage layer with a heat transfer layer 5 interposed therebetween. A floor covering material 7 is laid on a heat radiation surface 6a on the upper surface of the radiator 6. Note that the heat radiator 6, the heat transfer layer 5, and the heat storage layer are bonded together in a thermally and structurally favorable state.

The heat transfer layer 5 has a two-layer structure in which a material 8 with high thermal conductivity and a material 9 with low thermal conductivity are vertically opposed and in contact with each other. A cylindrical hollow part is cut out. A cylindrical rotating body 12 having a structure in which materials 10 and 11, which are the same as the materials 8 and 9 constituting the transmission layer 5, are brought into opposing contact with each other is inserted into each hollow portion. 10 in the figure is a material with high thermal conductivity,
11 and 11 are materials with low thermal conductivity. Both the hollow part and the cylindrical rotating body 12 are formed into a perfect circle, and their diameters are also formed to be the same with high precision, so that the cylindrical rotating body 12 is inserted into the hollow part with good thermal contact and can only rotate freely. ing. An operating mechanism is provided on one end surface of each of these cylindrical rotating bodies 12 for rotating each rotating body 12 within the hollow space to displace the geometric position relative to the remaining heat transfer layer 5 portion. It is provided. 2A and 2B show the operating mechanism, and in the figures, 13... is a pin protruding from a position eccentric from the rotation axis P of each cylindrical rotating body 12;
Reference numeral 14 designates an arm rod that connects each pin 13, and 15 designates an operating lever that has a fulcrum at the rotational axis P of one rotating body 12 and to which the arm rod 14 is connected. The lever 15 is partially protruded from the side edge of the floor surface. In addition, the lever 15 is approximately
Can be rotated 90°. Therefore, if the operating lever 15 is now in the solid line position and each cylindrical rotating body 12 is in the state shown in FIG. 3A, then
When the operating lever 15 is rotated to the broken line position,
The cylindrical rotating bodies 12 change to the state shown in FIG. 3B. In the state shown in FIG. A, the material 10 with high thermal conductivity in the cylindrical rotating body 12 is in contact with the material 8 with high thermal conductivity of the heat transfer layer 5 and the radiator 6, so that the heat storage material 1 The amount of heat storage is determined by the material 8.
from the rotating body material 10 to the radiator 6,
Heat is radiated indoors from the heat radiating surface 6a. That is, in this case, the thermal conductivity of the entire heat transfer layer 5 is high. On the other hand, in the state shown in FIG. B, the material 10 with high thermal conductivity in the rotating body 12 is only in contact with the material 9 with low thermal conductivity in the heat transfer layer 5, so the state shown in FIG. Good heat transfer is not possible. Therefore, in this case, the thermal conductivity of the entire heat transfer layer 5 is low.

According to the above configuration, the operation lever 15
By rotating the , the thermal conductivity of the entire heat transfer layer 5 can be varied and the amount of heat released from the heat storage material 1 can be artificially adjusted. It becomes possible to store heat in the heat storage material 1 and radiate the stored heat intensively during the heat demand period in the evening of the next day.
Incidentally, FIG. 4 shows the temperature characteristics of the heat radiating surface 6a of the radiator. In the figure, A is the heat storage process, B is the heat radiation process, C is the phase change temperature of the heat storage material 1, and D is the temporal change characteristic curve of the temperature of the heat radiation surface 6a when the thermal conductivity of the entire heat transfer layer 5 is increased. , E are characteristic curves of the temperature of the heat dissipation surface 6a over time when the thermal conductivity of the entire heat transfer layer 5 is reduced.

Next, FIG. 5 shows another embodiment of the present invention. In this embodiment, the heat transfer layer 5 is constructed by arranging a material 8 having a high thermal conductivity and a material 9 having a low thermal conductivity in alternating contact with each other in the horizontal direction. It is structured such that it is cut into three parts 5a, 5b, and 5c by cutting along parallel horizontal planes, and the central divided part 5b can be slid laterally relative to the other parts 5a, 5c.
With this configuration, by sliding the central divided portion 5b, the material 8 with high thermal conductivity and the material 9 with low thermal conductivity therein are separated from the material 8 with high thermal conductivity and the material 9 with low thermal conductivity in the other portions 5a and 5c. The geometrical positional relationship of the heat transfer layer 5 can be changed, thereby making it possible to vary the thermal conductivity of the entire heat transfer layer 5.

In each of the embodiments described above, it is also easy to detect the floor surface temperature and automatically rotate the operating lever 15 based on the difference between the detected temperature and the set temperature. It is also possible to construct a cold storage air conditioner by using water or a latent heat storage body with a phase change temperature of about 10° C. as the heat storage material 1, and using a cold source supply medium instead of the electric heater 2.

Since the heat storage and heat dissipation device according to the present invention is configured as described above, it has the following effects.

The heat radiation from the heat storage material can be artificially adjusted. Therefore, an extremely rational method of use is possible, for example, by storing heat using nighttime electricity and supplying the stored heat amount during the heat demand period in the evening of the next day.

The artificial adjustment of the heat dissipation is performed by changing the thermal conductivity of the entire heat transfer layer by devising the structure of the heat transfer layer.
Heat radiation can be controlled regardless of the type, structure, state change, etc. of the heat storage material. Therefore, no matter which heat storage body is used as the heat storage material, it is easy to implement the system, and there is no difficulty in implementation as with the current means mentioned at the beginning.

[Brief explanation of the drawing]

FIG. 1 is an overall front sectional view showing one embodiment of the present invention, FIG. 2A is a top view of FIG. 1, FIG. 3B is a front view, and FIGS. FIG. 4 is a diagram illustrating the temperature characteristics of the heat dissipation surface of the apparatus shown in FIG. 1, and FIG. 5 is a front sectional view of a main part showing another embodiment of the present invention. 1... Heat storage material, 5... Heat transfer layer, 6... Heat radiator, 6a
...heat dissipation surface, 8,10...material with high thermal conductivity,
9,11...Material with low thermal conductivity.

Claims (1)

[Claims] 1. In a heat storage and heat dissipation device in which a heat transfer layer is interposed between a heat storage layer mainly made of a heat storage material and a radiator having a heat dissipation surface, the heat transfer layer is made of a material with high thermal conductivity and a material with low thermal conductivity. are formed in a structure in which they are in opposing contact with each other, and at least a part of the heat transfer layer is configured so that its geometric position can be displaced relative to other heat transfer layer parts, so that the heat of the entire heat transfer layer is A heat storage and heat dissipation device characterized by variable conductivity.