JPH0150818B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an air conditioner using an air-type solar heat collector, which can improve the livability of a house by making it possible to ventilate even the attic.

[Background technology]

Pneumatic solar collectors, which generate warm air using solar heat, are widely used.

On the other hand, in the summer, the attic is heated by solar heat, and the hot air from the attic warms the living room through the ceiling, impeding the livability of the house.

[Purpose of the invention]

The present invention aims to provide an air conditioner that can solve the above-mentioned problems by making use of an air flow path passing through a pneumatic solar heat collector to enable heating in the winter as well as ventilation in the attic in the summer. .

[Disclosure of the invention]

An embodiment of the present invention will be described below based on the drawings.

In FIGS. 1 to 3, the air conditioner 1 has an air outlet 14 and an air inlet 15 of the pneumatic solar collector 2.
A feed duct 4 and a return duct 5 each leading to a room 3
are connected to form an air passage 6, and the supply duct 4 has an air passage 9 that communicates with the outside air and is opened and closed by the first switching valve 11, and the return duct 5 has an air passage 9 that opens in the attic 7 and A ventilation path 10 is provided which is selectively opened and closed by a second switching valve 12, and a fan 13 is interposed in the air flow path 6.

The air-type solar heat collector 2 has a heat collecting plate 22 for collecting solar heat disposed inside a flat box body 21 which is attached to a sloped roof and whose upper part is covered with a transparent plate, and a heat collecting plate 22 for collecting solar heat is disposed in a flat box body 21 whose upper part is covered with a transparent plate. In this example, a heat exchanger 23 for heating a heat medium such as a liquid is housed in the section. Note that the heat exchanger 23 is connected to a hot water storage tank 24 via piping, and can heat city water in the hot water storage tank 24 and supply hot water indoors as appropriate.

In addition, in the pneumatic solar heat collector 2, the bottom of the box body 21 is cut out and the air outlet 14 and the air inlet 15 are provided.
The feeding duct 4, which has a vent 27 opening in the lower part of the chamber 3, is connected through chambers 25 communicating with the chambers 25 and 3, respectively.

Further, the air inlet 15 is connected to the recirculation duct 5 having a vent 29 opening at the ceiling of the room 3 via a chamber 26 . Further, the supply duct 4 is provided with a fan 13 capable of supplying air downwardly on its upstream side, and its downstream portion is provided with a branch duct that is connected to a ventilation opening 31 that opens in the wall of the eaves. Route 9 is branched and formed.

The ventilation passage 9 can be opened and closed by the first switching valve 11, and the supply duct 4 is provided with a damper 34 on the downstream side of the branch point, so that the damper 34 can be opened and closed alternately and simultaneously. , can be switched, and can be closed and opened at the same time.

Further, a ventilation path 10 consisting of a branch duct that opens at the attic 7 is branched and connected to the circulation duct 5, and the ventilation path 10 and the upstream side of the branch point of the circulation duct 5 are as follows.
It can be selectively opened and closed by the second switching valve 14.
Further, the attic 7 is isolated from the inside of the air type solar heat collector 2 because the air type solar heat collector 2 is formed by the box body 21 as described above.

Note that the second switching valves also have dampers 3 provided respectively.
It consists of 5,36.

Note that as the second switching valve 12, it is also possible to use a so-called switching valve that is provided at a branch point and switches between two flow paths using one valve body.

There is also a ventilation opening 36 in the attic 7, which is cut out from the wall.
The inside of the attic 7 is communicated with outside air through the ventilation opening 36.

[Effect]

However, during solar radiation in winter, the first switching valve 11 is closed and the damper 3 is closed, as shown in FIG.
4 and switches the second switching valve 12,
The supply duct 4 and the return duct 5 form an air flow path 6 passing through the room 3. In addition, when the fan 13 is driven, warm air from the pneumatic solar heat collector 2 can be discharged from the vent 27, and the room 3 can be air-conditioned. Also heat exchanger 23
Accordingly, hot water can be stored in the hot water storage tank 24 as described above.

In addition, in the summer, as shown in Figure 3,
The second switching valves 11 and 12 are connected to the ventilation path 9 and the ventilation path 1.
Switch so that 0 becomes conductive. As a result, as the fan 13 is driven, outside air from the ventilation port 36 flows into the ventilation path 10, passes through the pneumatic solar heat collector 2, the ventilation path 9, and is discharged to the outside from the ventilation port 31. Therefore, the attic 7 is ventilated, preventing hot air from the attic 7 from being transmitted to the room 3, and improving livability. Moreover, the inside of the air-type solar heat collector 2 can be cooled and heating thereof can be prevented.

FIG. 4 shows another embodiment of the invention.

In this embodiment, the fan 13 is provided downstream of the branch point of the ventilation path 9, and the fan 13 is provided downstream of the branch point of the ventilation path 9.
An auxiliary fan 17 is interposed between the two.

Note that a relatively small auxiliary fan 17 can also be used.

In this embodiment, during winter solar radiation, the fan 13 is driven to heat the room 3, as shown by the solid line indicating the direction of the wind, as in the previous embodiment. In addition, in the summer, the auxiliary fan 17 is driven so that the warm air in the attic 7 passes through the pneumatic solar heat collector 2 and is discharged to the outside from the ventilation path 9 without passing through the fan 13, as shown by the dot-dash line in the direction of the wind. . Therefore, air heated to a high temperature by the pneumatic solar heat collector 2 in the summer can be prevented from passing through the fan 13, and the durability of the fan 13 can be prevented.

5 and 6 show still another embodiment of the present invention, in which the fan 13 is provided downstream of the branch point of the ventilation path 9, compared to the embodiment shown in FIGS. 1 to 3.

Therefore, in this embodiment, during winter solar radiation, the first switching valve 11 is closed as shown in FIG. 5, and the rooms 3, 3 can be air-conditioned in the same way as in the previous embodiments. Also, during summer solar radiation, as shown in FIG. Outside air is sucked in through the duct 4, and the room can be air-conditioned, especially at night. Further, the air is discharged into the attic 7 through the return duct 5 and the ventilation path 10,
Moreover, by discharging air from the ventilation opening 36, the attic 7 is simultaneously ventilated, and the hot air in the attic is discharged to the outside, thereby improving the cooling effect of the house and increasing the livability of the house.

〔Effect of the invention〕

As described above, the air conditioner of the present invention can air-condition a room in the winter using the pneumatic solar heat collector, and can also ventilate the attic in the summer, preventing hot air from being transmitted to the room in the attic and making it easier to live in the house. It can enhance sex. In addition, as in the embodiment shown in Figures 5 and 6, by supplying outside air to the room and exhausting it from the attic, when the outside air is low temperature,
It is also useful for air conditioning in the summer, increasing equipment efficiency.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing one embodiment of the present invention, and FIG.
3 are diagrams showing the effect thereof, FIG. 4 is a sectional view showing another embodiment, and FIGS. 5 and 6 are diagrams showing still another embodiment. 2...Air type solar collector, 3...Room, 4...
...Feeding duct, 5... Return duct, 6... Air flow path, 9... Ventilation path, 10... Ventilation path, 11... First switching valve, 12... Second switching valve, 13... ...Fan, 14...Air outlet, 15...Air inlet, 1
7... Auxiliary fan, 36... Ventilation vent.

Claims (1)

[Claims] 1. By connecting the air outlet and air inlet of the pneumatic solar heat collector, which collects solar heat and generates warm air, to the air supply duct and return duct that lead to the room, respectively, the pneumatic solar heat collector can be connected to the room. to form an air flow path returning to the pneumatic solar heat collector, and an air flow path leading to the outside air is branched to the supply duct, and an air flow path that is isolated from the pneumatic solar heat collector and directed outdoors is formed in the return duct. A first switching valve opens and closes the ventilation passage, and a second switching valve selectively opens and closes the ventilation passage and the recirculation duct upstream of the branch point, respectively, while branching the ventilation passage that opens in the attic where the ventilation opening is provided. An air conditioner equipped with a switching valve and an air supply fan interposed in the air flow path.