JPS62169950A - Ventilator fan in air conditioner - Google Patents

Abstract

PURPOSE:To be able to maintain space cooling and heating effect for a long time after the operation of an apparatus is stopped by placing regenerative members between a heat exchanger and a suction hole at the room inside and also between the exchanger and a discharge hole at the room inside. CONSTITUTION:When only an exhaust blower 4 is operated at the stop of a space cooling and heating apparatus, an open and closed damper 10 for discharge at the room outside is closed and an open and closed damper 13 for an air feed hole is opened to connect an exhaust path and an air feed path and form an air flow path C-C' for circulation in the room. Air flow flowing in from a suction hole 2 at the room inside is cooled or heated by a regenerative member 9a and the air flow passing through a heat exchanger 3 and an air feed hole 11 is cooled or heated again by a regenerative member 9b to flow into the room inside from a discharge hole 8 at the room inside. By this way, effective space cooling and heating are able to be carried out for a long time even after the operation of the apparatus is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air conditioning ventilation fan that ventilates a living room while exchanging heat between a supply air flow and an exhaust air flow.

Conventional Technology In recent years, buildings have become more airtight due to improved soundproofing and thermal insulation. Therefore, it is necessary to install a ventilation fan for sanitary reasons, but ventilation causes the air that has been heated and cooled in the living room to be exhausted, increasing the heating and cooling load. Recently, air conditioning ventilation fans that can perform ventilation while recovering energy from this exhaust flow are becoming popular.

The conventional air conditioning ventilation fan mentioned above will be described below based on FIG.

In the figure, 201 is the outside suction port, and the indoor suction port 20
2, an outdoor side discharge port 205, an outdoor side suction port 206, and an indoor side discharge port 208, and an exhaust blower 204 inside.
, a supply air blower 207 , and a heat exchanger 203 . Exhaust air passage X-+X' leads from the indoor suction port 202 to the outdoor discharge port 205 via the heat exchanger 203, and from the outdoor suction port 206 to the indoor 9111 discharge port 208 via the heat exchanger 203. Air supply ventilation path Y −
* Forms Y'.

The heat exchanger 203 is constructed by stacking the exhaust ventilation path X→X' and the supply air ventilation path Y-)Y' at regular intervals in a direction perpendicular to the plane of the paper in FIG. .

In order to maintain constant spacing, a spacer made by bending a plate at a constant pitch is inserted into each flow path, forming a fine flow path.

In the above configuration, indoor air is exhausted outdoors along the exhaust ventilation path Exhausted.

On the other hand, outdoor air is supplied indoors along the supply air passage Y - + Y', but as mentioned above, after receiving the heat energy of the indoor air in the heat exchanger 203, it is returned to the indoor air. is supplied with air. Further, during cooling, the thermal energy of the supplied outdoor air is given to the indoor air exhausted within the heat exchanger 203. Therefore, even if ventilation is performed during cooling/heating, the air conditioning ventilation fan can reduce the cooling/heating load due to ventilation.

Problems to be Solved by the Invention With the above-mentioned conventional air conditioner ventilation fan, when the air conditioner is stopped, the room will feel hot in the summer and cold in the winter after a while, causing the people in the room to feel hot. There was a problem that it caused discomfort.

The present invention solves the above-mentioned conventional problems, and when the operation of the air conditioner/heater is stopped, the indoor cooling effect or heating effect can be maintained for a long time, thereby eliminating the discomfort of feeling hot or cold. It is an object of the present invention to provide an air conditioning ventilation fan that can prevent such problems.

Means for Solving the Problems In order to solve this problem, the present invention provides an outdoor system having an indoor side suction port and an indoor side discharge port communicating with the room, and an outdoor side suction port and an outdoor side discharge port communicating with the outdoors. In this way, the indoor side suction port and the outdoor side discharge port are connected via a heat exchanger, and an exhaust ventilation passage having an exhaust blower and the outdoor side suction port and the indoor side discharge port are connected through the heat exchanger. A heat storage material is provided between the heat exchanger and the indoor suction port on the exhaust ventilation path side.
On the supply air passage side, a heat storage material is provided between the heat exchanger and the indoor outlet, and a damper is provided at the outdoor outlet and the partition plate that partitions the exhaust air passage and the supply air passage. .

Effect With this configuration, when the exhaust blower and the intake blower are operated at the same time, the off-campus air passes through the heat exchanger in the supply air passage, stores heat when passing through the heat storage material, and is supplied into the room. When the indoor air passes through the heat storage material in the exhaust ventilation path, it stores heat and is discharged outdoors through the heat exchanger.After that, when only the exhaust blower is operated, the damper installed at the outdoor outlet closes and the exhaust air is discharged. When the damper installed on the partition plate that separates the ventilation duct from the supply air duct opens, the exhaust ventilation duct communicates with the supply air duct, forming a circulation passage with the interior of the room, and the heat stored in the heat storage material is Even after the room is returned indoors and the air conditioner is turned off, the cooling or heating effect continues.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, reference numeral 1 denotes an exterior, which has an indoor suction port 2 and an outdoor discharge port 6, and is provided with a heat exchanger 3 and an exhaust blower 4 inside, and the entire air flows through the heat exchanger 3. An exhaust ventilation path A-+A' is formed.

In addition, the outdoor side 1 has an outdoor side suction port 6 and an indoor side discharge port 8.
is provided, has an air supply blower 7 therein, and forms a supply air passage B→B' which passes through the heat exchanger 3 as a whole. A heat storage material 9a is provided at the front of the heat exchanger 3 in the exhaust air passage to store the heat of the exhaust flow, and a heat storage material 9a is provided at the rear of the heat exchanger 3 in the supply air passage to store the heat of the air supply. A heat storage material 9b that stores heat after passing through the exchanger 3 is provided. An outdoor outlet opening/closing damper 10 is provided at the outdoor outlet 5, and an exhaust ventilation path A −+ A'
The air supply ventilation path B-+B' is partitioned by a partition plate 12, and the partition plate 12 is provided with an air supply port 11. The air supply port 11 is opened and closed by a damper 13. The heat exchanger 3 is constructed by stacking exhaust air passages A-+A' and supply air passages B-+B' at regular intervals in a direction perpendicular to the plane of the paper in FIG. In order to maintain constant spacing, a spacer made by bending a plate at a constant pitch is inserted into each flow path, forming a fine flow path.

In the above configuration, as shown in FIG.
When the intake blower 7 and the air intake fan 7 are operated at the same time, the outdoor outlet 6
The damper 10 opens, and the exhaust gas enters from the indoor suction port 2, stores heat as it passes through the heat storage material 9a, passes through the heat exchanger, and is discharged outdoors from the outdoor discharge port 6. On the other hand, a supply air flow enters from the outdoor side suction port 6, exchanges heat with the exhaust air flow by the heat exchanger 3, stores heat as it passes through the heat storage material 9b, and is supplied into the room from the indoor side discharge port 8. When the air conditioner is operated in this manner, ventilation is performed while suppressing an increase in the air conditioning load. When the operation of the air conditioner is stopped and only the exhaust blower 4 is operated as shown in Fig. 2, the outdoor outlet opening/closing damper 1° closes and the air supply opening opening/closing damper 13 opens, opening the exhaust ventilation path A-A'. The air supply ventilation path B-B/ communicates with each other to form a ventilation path C-C' that circulates indoors, and the airflow that enters from the indoor suction port 2 is cooled or warmed by the heat storage material 9a, and the heat exchanger The air passes through the air supply port 11 through the air supply port 11, is cooled or warmed again by the heat storage material 9b, and enters the room through the indoor discharge port 8.

As described above, according to this embodiment, as explained in FIG. 2, even after the operation of the air conditioner is stopped, by operating only the exhaust blower, the indoor air can be supplied to the heat storage material at two locations. As the air is circulated through the air, warm or cold air can enter the room for a long period of time, providing effective heating and cooling.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, the heat storage material is provided between the heat exchanger and the indoor suction port, and between the heat exchanger and the indoor discharge port, and By installing a damper that forms a circulating ventilation path, cold or warm air will continue to come out from the air conditioning ventilation fan for a long time even after the heating and cooling is turned off, which will not cause discomfort to people and reduce heating and cooling costs. Its practical effect is great because it saves money.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an air conditioning ventilation fan according to an embodiment of the present invention during ventilation, FIG. 2 is a sectional view showing air circulation in the same room, and FIG. 3 is a sectional view showing a conventional air conditioning ventilation fan. 1...Outside, 2...Indoor suction port,
3...Heat exchanger, 4...Exhaust blower, 5...Outdoor side discharge port, 6...Outdoor side suction port, 7... ...Air supply blower, 8...
Indoor side discharge port, 9a, 9b... Heat storage material, 10
...Outdoor outlet opening/closing damper, 11...
...Air supply port, 12...Partition plate, 13...
Air supply opening/closing damper. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
figure

Claims (1)

[Claims] The indoor side suction port and the outdoor side discharge port are connected to the outside through a heat exchanger, and the indoor side suction port and the outdoor side discharge port are connected to the outside, which has an indoor side suction port and an indoor side discharge port that communicate with the room, and an outdoor side suction port and an outdoor side discharge port that communicate with the outdoors. and forming an exhaust ventilation path having an exhaust blower, and connecting the outdoor side suction port and the indoor side discharge port via the heat exchanger to form a supply air path having a supply air blower. , a heat storage material is provided between the heat exchanger and the indoor suction port on the exhaust ventilation path side, a heat storage material is provided between the heat exchanger and the indoor discharge port on the supply air ventilation path side, and the heat storage material is provided between the heat exchanger and the indoor discharge port on the exhaust ventilation path side. An air conditioning ventilation fan with a damper installed on the outlet 1 and on the partition plate that separates the exhaust ventilation path and the supply air ventilation path.