JPH07253224A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide a low cost and low power cooler/heater. CONSTITUTION:The air from air supply means 18 is passed through first and second heat exchanging means 16, 17 to be heat exchanged, and the wind is diffused from air supply outlets 12, 12, thereby cooling or heating a room. Dividing means 19 for dividing the air from the supply means to the first and second heat exchanging means sides is provided, and hence only one air supply means is sufficient. Accordingly, a cooler/heater in which its structure is simple and has a low cost and low power is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling and heating apparatus which uses a thermoelectric conversion element to generate cold air and hot air.

[0002]

2. Description of the Related Art As a conventional technique of this kind, Japanese Patent Laid-Open No.
The technique disclosed in Japanese Patent Laid-Open No. 200122 is known. This is because each of the air exchange means is arranged in the vicinity of the heat exchange means which is in contact with both heat exchange surfaces of the thermoelectric conversion element, and the wind from the fan is opened upward and is opened substantially downward. We provide local cooling and heating devices that are blown out from the lower outlet to suit the user's preference.

[0003]

According to the above-mentioned conventional technique, an air blower is provided in the vicinity of both heat exchanging means, and the air from the air blower is blown out from the air outlet to cool and heat the room. Therefore, two blowing means are inevitably required. Therefore, there are problems that the structure is complicated and the cost is high, and a large amount of electric power is required.

The present invention has a technical problem to provide a low-cost and low-power cooling and heating device.

[0005]

The technical means taken in the present invention for solving the above-mentioned technical problems include a thermoelectric conversion element having first and second heat exchange surfaces, and first and second thermoelectric conversion elements.
First and second heat exchanging means that come into contact with the heat exchanging surface in a heat transfer relationship, blower means for generating wind that passes through the first and second heat exchanging means and is blown out from the outlet, and the wind from the blower means Means for dividing the first heat exchange means side and the second heat exchange means side, and the wind from the blowing means for driving the division means is the first
That is, it is provided with an air volume changing means for changing the air volume hitting the heat exchanging means and the second heat exchanging means.

[0006]

In the present invention, the wind from the blowing means is heat-exchanged by passing over the first and second heat exchange means,
The air is blown out from the air outlet to cool and heat the room. Further, since only one air blower is required by providing the dividing means for dividing the air from the air blower into the first heat exchange means and the second heat exchange means, the structure is simple, the cost is low, and the power consumption is low. Air conditioner is provided.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described with reference to the drawings.

As shown in the figure, the cooling / heating device 10 is attached to the back side of the learning desk 11, and the outlets 12 and 13 are provided in front of the desk (front side in FIG. 1) to sit on the desk 11. It is designed to be able to locally cool and heat people.

The cooling and heating apparatus 10 is in contact with the Peltier element 14 which is a thermoelectric conversion element and the first and second heat exchange surfaces 14a and 14b of the Peltier element 14 via the heat conducting material 15, respectively. The first and second fins 16 and 17 constituting the heat exchange means, and the fin 1 constituting the blower means
6, a fan 18 that sends wind toward the fan 17, a partition plate 19 that divides the air from the fan 18 into first fins 16 and second fins 17, and a wind that has passed over the first fins 16. It is composed of outlets 12 and 13 for blowing out.

Above and below the Peltier element 14 in the figure, a heat insulating material 20 is arranged to prevent heat from being transferred between the first fin 16 and the second fin 17, and this heat insulating material 20 is provided. It is sandwiched by both fins 16 and 17.

The fan 18 is interlocked with a power switch 21 provided on the front surface of the desk 11, and the power switch 2
When 1 is turned on, it rotates.

The partition plate 19 is the case 1 of the cooling and heating device 10.
It is rotatable about a pin 22 provided at 0a. Further, the partition plate 19 is connected to a stepping motor (not shown) that is interlocked with a temperature control knob 23 provided on the front surface of the desk 11, and the angle of the partition plate 19 is adjusted by operating the temperature control knob 23. To be done. This is done by the following operations.

When the angle of the partition plate 19 is changed, the amount of air blown against the first fin 16 and the second fin 17 is changed. For example, when heat is being absorbed by the first fins 16, the second fins 17 radiate heat. By increasing the heat dissipation effect, the heat absorption effect of the first fins 16 is improved, and the wind passing over the first fins 16 is improved. The endothermic amount of is increased. As a result, the temperature of the air blown from the air outlet 12 or 13 is lowered.

The outlet 12 is provided with a wind direction switching member 25 through the duct 10b and the bellows 24 of the cooling and heating device 10.
It is connected to the. The wind direction switching member 25 is the elastic member 2
The lighting 26 and the connecting pin 2 which can be projected from the desk 11 by 6a
The structure including the flexible bellows 24 that is connected via 7 can be configured to move integrally with the illumination 26, so that the illumination 26 is not disturbed and the illumination is achieved even when the air volume is small. By projecting 26 from the desk 11, it is possible to bring it closer to the user, and the cold air becomes colder.
The warm air makes the user feel warmer.
Further, the wind direction switching member 25 is rotatable in the horizontal direction around the connecting pin 27, and is also rotatable in the vertical direction around the pin 28 connecting the outlet 12 and the wind direction switching member 25. . On the other hand, the outlet 13 is provided in the duct 10
It communicates in the middle of b. In addition, a valve 29 is provided in the middle of the duct 10b so that the wind from the fan 18 is blown out from either of the outlets 12 and 13. The movement of the valve 29 is controlled by a drive device (not shown) that operates in conjunction with an outlet switch 30 provided on the entire surface of the desk 11, for example, a motor or a solenoid.

In the present invention, the fins 16 and 17 are used as the first and second heat exchange means, but the present invention is not limited to this and may be plate-like.

In this embodiment having the above-mentioned structure, when the power switch 21 is turned on, the Peltier element 14 is energized and the fan 18 rotates. At this time, if the first heat exchange surface 14a of the Peltier element 14 is a heat absorption surface,
The wind that passes through the fins 16 absorbs heat, and cool air is sent from the outlets 12 or 13. Further, the second heat exchange surface 14b of the Peltier element 14 serves as a heat radiation surface, and heat is radiated from the fins 17. The temperature of the cold air is adjusted by the above-mentioned action by adjusting the temperature adjusting knob 23.

Further, in this embodiment, since the cooling / heating device is attached to the learning desk, the wind that has been heat-exchanged by the second heat exchange surface 14b hits the desk, so that it is difficult to go forward, and the desk user feels uncomfortable. Never give.

Further, in this embodiment, since the air from the fan 18 is divided into the fins 16 and 17 by the partition plate 19, only one fan is required, so that the structure is simple, the cost is low, and the power is low. Is.

[0019]

According to the present invention, since the air blower is divided into the first heat exchanging means side and the second heat exchanging means side, only one air blower means is required, so that the structure is improved. A simple and low-cost air conditioner with low power is provided.

[Brief description of drawings]

FIG. 1 shows a perspective view of a desk equipped with a cooling / heating device according to the present invention.

FIG. 2 shows a cross-sectional view of a cooling and heating device according to the present invention.

[Explanation of symbols]

 10 ... Air conditioner 12, 13 ... Blowout port 14 ... Peltier element (thermoelectric conversion element) 14a ... First heat exchange surface 14b ... Second heat exchange surface 16 ... Fin (first 1 heat exchange means) 17 ... fins (second heat exchange means) 18 ... fan (blowing means) 19 ... partition plate (dividing means)

Claims (1)

[Claims] 1. A thermoelectric conversion element having first and second heat exchange surfaces, first and second heat exchange means for contacting the first and second heat exchange surfaces in a heat transfer relationship, and the first and second heat exchange means. And a blowing means for generating a wind that passes over the second heat exchange means and is blown out from the blowing port, and a dividing means for dividing the wind from the blower means into the first heat exchange means side and the second heat exchange means side. And an air volume changing means for driving the dividing means to change an air volume of the air from the air blowing means hitting the first heat exchanging means and the second heat exchanging means.