JPS6014030A - Air conditioning ventilation fan - Google Patents

Abstract

PURPOSE:To enable an indoor air circulation to be performed while shutting off the surrounding atmosphere from a room by a method wherein a shutter cooperating with a switch is arranged in each of the discharging passage and intake passage, the surrounding atmosphere is shut off when an air conditioning ventilation fan is stopped to operate and further a damper to be opened or closed is arranged in a main body. CONSTITUTION:When the air conditioning ventilation fan is operated, the intake and discharging air is performed as indicated by A-A' and B-B'. When stopped, a shutter 12 is closed in cooperation with the operation of the switch so as to shut off the discharging passage 9 and the intake passage 10 from the surrounding atmosphere. While the shutter 12 being closed, the discharging damper 13 and the intake damper 14 are opened, and a discharging fan 15 and a intake fan 16 are driven by a motor 17. With this arrangement, the indoor air suctioned through the circulation intake port 5 is passed through a heat exchanger element 11 as indicated by an arrow C-C', discharged at the discharging port 7 at the indoor part and simultaneously discharged at the discharging port 6 as indicated by an arrow D-D' through the intake port 4. Therefore, it is possible to perform an air conditioning air circulation while the surrounding atmosphere is being shut off.

Description

[Detailed Description of the Invention] Industrial Application Fields In recent years, as a means to ventilate a room that is being heated and cooled, it has been used to exhaust dirty air from inside the room to the outside and bring in fresh air from outside. Air-conditioning ventilation fans have come into use that exchange heat with indoor air, transfer the thermal energy of exhausted indoor air to outdoor air, and recover it indoors. And as homes become more airtight, their popularity has been remarkable. The present invention relates to an air conditioning ventilation fan that recovers indoor thermal energy that is discharged to the outside through ventilation of such a house.

Structure of a conventional example and its problems Regarding a conventional air conditioning ventilation fan, FIGS. 1 and 2 also show a main body having a side outlet 103 and an indoor suction port 104, and 105 a louver having an indoor outlet 106. 107 is a heat exchange element, 108 is an exhaust vane, 1o9 is an air supply vane, 1
10 is a motor that rotates the exhaust vane 108 and the air supply vane 109. 111 is an exhaust passage that communicates the indoor side suction port 104 and the outdoor side discharge port 103, and 112 is an air supply passage that communicates the indoor side discharge port 106 and the outdoor side suction port 102.

In the above configuration, the exhaust vane 10 is driven by the motor 110.
8 and the air supply vane 109 are rotated, the indoor air sucked in by the exhaust vane 10B from the indoor suction port 104 of the main body 1010 passes through the heat exchange element 107 as shown by the arrows B - + B', and then flows into the exhaust passage 111. It passes through and is discharged outdoors from the outdoor discharge port 103 of the main body 101. On the other hand, main body 1
The outside air sucked in from the outdoor side suction port 102 of 01 is indicated by arrow A.
-) Passes through the A' throat air supply passage 112, passes through the heat exchange element 107, and is discharged indoors from the indoor outlet 106 of the louver 105. At this time, outside air and indoor air are mixed inside the heat exchange element 107. The thermal energy held by the indoor air is exchanged with each other, and the thermal energy held by the indoor air is recovered indoors.

However, in the above configuration, since the exhaust passage 111 and the air supply passage 112 are open when the operation is stopped, noise from the outside enters, which interferes with daily life.
It often interfered with work, and in the winter, cold air from outside still entered the room, contributing to lower indoor temperatures. Furthermore, when heating and cooling when ventilation is not required, it is desirable to install a circulator because there is a considerable temperature difference between the ceiling area and the floor area, but it is expensive to install an air conditioner, air conditioning ventilation fan, and circulator in the same room. , it was impossible due to space considerations.

Purpose of the Invention The present invention solves these conventional drawbacks, and aims to prevent the intrusion of outside wind from outside when the air conditioning ventilation fan is stopped,
To provide an air conditioning ventilation fan capable of circulating indoor air while blocking outside air.

Structure of the Invention The present invention connects the exhaust passage and the air supply passage with a switch (not shown).
It is equipped with a shutter that opens and closes in conjunction with the air conditioner to shut off outside air when the air conditioning ventilation fan stops operating, and a damper that can be opened and closed at will is installed on the main body to shut off outside air and circulate indoor air. It is.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. In the figure, 1 is a main body that has an outdoor suction port 2 and an outdoor discharge port 3 on the back, an indoor suction port 4 and a circulation suction port 5 on the right side, and a circulation discharge port 6 on the left side. A louver 8 having an indoor discharge lower on the left side is removably fitted.

Reference numeral 9 denotes an exhaust passage that communicates the indoor suction port 4 with the outdoor discharge port 3; 10 an air supply passage that communicates the indoor discharge lower with the outdoor suction port 2; and 11, an exhaust passage 9.
and a heat exchange element 12 provided at the intersection of the air supply passage 10.
a shutter that simultaneously shuts off the exhaust passage 9 and the air supply passage 10 from outside air in conjunction with a switch (not shown);
Reference numeral 3 denotes a discharge damper that can open and close the circulation discharge port 6 as desired, and allows communication between the indoor chamber and the exhaust passage 9 as desired. Reference numeral 14 denotes a suction damper that can open and close the circulation suction port 5 as desired, and allows the room and the air supply passage 10 to communicate with each other as desired. 15 is an exhaust vane for blowing air into the exhaust passage 9; 16 is an air supply vane for blowing air into the air supply passage 10; 17 is a dowel for rotating the exhaust vane 15 and the air supply vane 16. motor.

In the above configuration, when the air conditioning ventilation fan is in operation, the arrow A −+
Intake and exhaust are performed as shown in A' and B-+B', and the same operation as in the conventional example is performed. When the operation is stopped, the exhaust passage 9 is closed by closing the shutter 12 in conjunction with the switch.
The air supply passage 10 can be isolated from the outside air, and the intrusion of outside air can be prevented. Then, with the shutter 12 closed, the discharge damper 13 and the suction damper 14 are opened, and the motor 17 rotates the exhaust vane 15 and the air supply vane 16.
The indoor air sucked from the circulation suction port 6 is indicated by arrow C-+,
It passes through C' throat heat exchange element 11 and is discharged from the indoor discharge lower. In addition, the indoor air sucked through the indoor side suction port 4 of the main body 1 passes through the heat exchange element 11 at the end of the arrow D - + D' and is discharged indoors from the circulation discharge port 6. According to the present invention, by providing a shutter that opens and closes the exhaust passage and the air supply passage in conjunction with a switch, when the air conditioning ventilation fan is not in use, it is possible to shut off the inside and outside of the room to prevent a drop in temperature due to outside air, and it also has a soundproofing effect. Obtainable. Furthermore, when the shutter is closed and the discharge and intake dampers are opened and the motor is operated, the indoor air can be circulated without being released outdoors, and the indoor air can be kept at a uniform temperature for heating and cooling. This makes it possible to provide an air conditioning ventilation fan that has two functions, and the effect is great.

[Brief explanation of the drawing]

Fig. 1 is a plan sectional view of a conventional air conditioning ventilation fan, Fig. 2 is a front view of a conventional air conditioning ventilation fan with main parts cut out, Fig. 3 is a plan sectional view of an embodiment of the present invention, and Fig. 4 is the same. It is a front view with main parts cut away. 1...Body, 2...Outdoor suction port, 3...
...Outdoor outlet, 4...Indoor suction port, 5...Suction port for circulation, 6...Discharge port for circulation, 7... ... Indoor side discharge port, 8 ... Louver, 9 ... Exhaust passage, 10 ... Air supply passage, 11 ... Heat exchange element, 12 ...・・・・・・
Shutter, 13...Discharge damper, 14...
... Suction damper, 15... Exhaust vane, 16... Air supply vane, 17... Motor. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4

Claims (2)

[Claims] (1) A main body having an exhaust ventilation passage that communicates between the indoor suction port and the outdoor discharge port, an air supply ventilation passage that communicates the indoor discharge port and the outdoor suction port, and a tank that blows air into the exhaust ventilation passage. The vane, the vane for blowing air into the supply air passage, and the motor for rotating them are made of a material having moisture permeability and heat conductivity, and heat exchange is possible between the supply air and the exhaust gas passing through. and a shutter that simultaneously opens and closes the outdoor side suction port and the outdoor side discharge port of the main body, and the shutter can arbitrarily block the supply air ventilation path and the exhaust air ventilation path. Ventilation fan. (2) The 4t47b main body is provided with a damper that arbitrarily communicates or blocks communication between the indoor side discharge port and the indoor room and the indoor side suction port and the indoor room via the heat exchange element and each blade. The air conditioning ventilation fan listed.