JP2000046398A - Garret ventilating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a heating load and a cooling load of a habitable room by utilizing a ventilation of a garret by switching a switching damper by thermoswitches installed in the garret and the room. SOLUTION: A fan 4 is installed in a garret 3 partitioned by a ceiling 3 at an upper side of a habitable room 1. An air intake port 5 of the fan 4 is provided in the garret 3. A supply air duct 8 having an air supply pot 1 and an exhaust duct 11 having an exhaust port 10 are connected to the room 1 via a switching damper 6. The damper 6 is switched by thermoswitches 13, 14 respectively installed in the room 1 and the garret 3 so that the air is supplied to any of the duct 8 and the duct 11. An opening 15 is provided as an air intake port on a lower surface 9 of eaves of the garret. The fan 9 uses a solar cell 18 installed on a room 17 as a power source.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attic ventilation system for reducing the cooling load and the heating load of a living room by utilizing the ventilation of an attic.

[0002]

2. Description of the Related Art Conventionally, only natural ventilation has been performed on the attic. However, the temperature in the attic is usually warmer than the room temperature because the roof is warmed by the sunlight, so warm air is filled in the attic by simply performing natural ventilation on the attic as before. To do
Even if cooling is performed in the living room, there is a problem that the cooling load is large because of the influence of the warm air above the ceiling. Also, when heating in a living room, warm air in the attic is not used, and no effective use of energy has been attempted.

[0003]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an attic ventilation system capable of reducing the heating load and the cooling load of a living room by utilizing the ventilation of the attic.

[0004]

In order to achieve the above object, in an attic ventilation system according to the present invention, a fan having an air intake in an attic is installed in an attic, and the fan is installed in a living room via a switching damper. An air supply duct having an air inlet and an exhaust duct having an air outlet at the back of the eave are connected, and the switching damper is switched by a thermo switch installed in the attic and in the living room.

According to the present invention, when cooling a living room, if the room temperature is above a certain set value, the switching damper is switched to the exhaust duct side having an exhaust port on the back of the eave by a thermoswitch on the living room and attic. This allows the warm air in the attic to be exhausted outside through the exhaust port by the fan. As a result, the temperature of the attic becomes low, and the cooling load of the living room is reduced. On the other hand, when heating the room, if the room temperature is lower than the set value, the switching damper is switched to the air supply duct side having the air supply port in the room by the thermo switch of the room, whereby warm air in the attic is supplied. Air is sent to the room from the mouth. As a result, the heating load of the living room is reduced. When the temperature of the attic is lower than a certain temperature, the fan is stopped.

[0006]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram for explaining an embodiment of the present invention. In FIG.
Is a living room of a house K, and a fan 4 is installed in an attic 3 partitioned by a ceiling 2 above the living room 1. The air intake 5 of the fan 4 is installed in the attic 3. An air supply duct 8 having an air supply port 7 in the living room 1 and an exhaust duct 11 having an exhaust port 10 in the back of the eaves 9 are connected to the air sending side of the fan 4 via a switching damper 6. The switching damper 6 is switched by thermoswitches 13 and 14 installed in the living room 1 and the attic 3 so as to supply air to either the air supply duct 8 or the exhaust duct 11. An opening 15 as an air inlet is provided in the eaves 9 of the attic. The fan 4 uses a solar cell 18 installed on a roof 17 as a power source.

Using such an attic ventilation system,
When cooling the living room 1, if the temperature of the attic 3 is higher than this when the temperature of the living room 1 is, for example, a set value of 22 ° C. or more, the thermoswitches 13 of the living room 1 and the attic 3
By 14, the switching damper 6 is switched to the exhaust duct 11 side having the exhaust port 10 in the eaves 9, whereby the warm air in the attic 3 is exhausted outside from the exhaust port 10 by the fan 4. As a result, the temperature of the attic 3 decreases, and the cooling load on the living room 1 is reduced.

On the other hand, when heating the living room 1, if the temperature of the attic 3 is higher than the set temperature of, for example, 22 ° C., the thermoswitches 13 and 14 of the living room 1 and the attic 3 will be used. The switching damper 6 is switched to the air supply duct 8 having the air supply port 7 in the living room 1 by the
As a result, warm air in the attic 3 is supplied from the air inlet 7 to the living room 1.
Is sent to As a result, the heating load of the living room 1 is reduced. When the temperature of the attic 3 is lower than a certain temperature, for example, 15 ° C. or less, the fan 4 is stopped.

According to the attic ventilation system configured as described above, when cooling the living room 1, the attic 3 is ventilated by the fan 4 and the warm air in the attic 3 is discharged indoors. , The cooling load on the living room 1 can be reduced.
On the other hand, when heating the living room 1, warm air in the attic 3 is supplied to the living room 1 by the fan 4.
Heating load can be reduced. Further, since the solar battery 18 is used as a power supply for the fan 3, running costs can be reduced.

[0010]

As described in detail above, the attic ventilation system according to the present invention is provided with a fan having an air intake at the attic in the attic, and the fan is provided with an air supply port to the living room via the switching damper. Since the air supply duct and the exhaust duct having an exhaust port on the eaves are connected and the switching damper is switched by a thermo switch installed in the attic and the living room, when cooling the living room, the fan is used in the attic. By exhausting warm air in the attic indoors by ventilating the attic, the temperature in the attic can be reduced and the cooling load on the living room can be reduced. On the other hand, when heating the living room, the heating load of the living room can be reduced by supplying warm air in the attic to the living room with a fan.

[Brief description of the drawings]

FIG. 1 is a configuration diagram for explaining an embodiment of the present invention.

[Explanation of symbols]

 K House 1 Living Room 2 Ceiling 3 Attic 4 Fan 5 Air Inlet 6 Switching Damper 7 Inlet 8 Inlet Duct 9 Back of House 10 Exhaust 11 Exhaust Ducts 13 and 14 Thermoswitch 15 Opening 17 Roof 18 Solar Cell

Claims (1)

[Claims] 1. A fan having an air inlet on the attic is installed on the attic, and an air supply duct having an air supply port in the living room and an exhaust duct having an air exhaust port on the eaves are connected to the fan via a switching damper. And an attic ventilation system wherein the switching damper is switched by a thermoswitch installed in the attic and in the living room.