JP2003227642A - Ventilator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilator for purifying outdoor air by fresh outdoor air by taking the outdoor air in an air conditioner. <P>SOLUTION: An indoor unit 11 of a room air conditioner and a ventilating fan 30 are juxtaposed. At ventilating time, the outdoor 3 air sucked from an outdoor air suction pipe 32 is delivered from an indoor exhaust port 31 of the ventilating fan 30 by driving an air blower 33 of the ventilating fan 30. The delivered outdoor air is sent toward an indoor suction port 14 of an air conditioner body 12 by a louver 35 of the indoor exhaust port 31. Thus, the outdoor air from the ventilating fan 30 is purified by passing through an air filter 23 from the indoor suction port 14, and is also blown off indoors (2) from an indoor exhaust port 15 after being heated or cooled by passing through a heat exchanger 19. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device for introducing fresh outdoor air into a room, and more particularly to a ventilation device used in combination with an air conditioner.

[0002]

[Problems to be Solved by the Invention] For example, Japanese Patent Laid-Open No. 7-19
As described in Japanese Patent No. 558, there is known an air conditioning ventilation fan that is installed together with an indoor unit of an air conditioner. The air-conditioning ventilation fan described in the publication uses a connecting box for communicating the main body of the device installed on the wall inside the room to the outside,
Further, this connecting box forms an air supply / exhaust passage with a single pipe. That is, one pipe is divided into right and left in the cross-sectional direction to form an intake passage and an exhaust passage. Also,
In the connecting box, the drain pipe is connected to the lower part of the exhaust passage, and the drain pipe from the air conditioner is connected to the same exhaust passage so that the drain pipe of the ventilation fan can also be used as the drain pipe of the air conditioner. There is.

However, the cost is high if the intake passage and the exhaust passage are formed by a single pipe divided into right and left in this way. Furthermore, since the connecting box is interposed,
The structure becomes more complicated and the cost is higher. Along with this, the piping cannot be freely handled, and the position of the through hole formed in the wall of the house is restricted, which makes the construction troublesome.

Further, since the air conditioner basically circulates the air in the room to perform air conditioning such as cooling and heating, unlike the ventilation fan, the air in the room cannot be replaced with fresh air. . Therefore, recently, an air conditioner capable of taking in outdoor air has also been developed. If you take in the outdoor air, the internal pressure of the indoor air rises, so you have to exhaust the indoor air.However, since recent houses are highly airtight, you can not expect to be naturally exhausted. Many. Therefore, a pipe for exhausting the indoor air is required. However, if this pipe has to be provided separately from the air conditioner pipe, the workability also deteriorates and the cost increases.

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem, and it is a first object of the present invention to provide a ventilator which can take in outdoor air and clean the outdoor air with fresh outdoor air in an air conditioner. The purpose of. It is a second object of the present invention to provide a ventilator capable of providing a ventilator that facilitates piping work and reduces costs when taking in outdoor air.

[0006]

In order to achieve the first object, a ventilation device according to a first aspect of the present invention includes an indoor intake port and an indoor exhaust port provided in an indoor unit of an air conditioner,
A heat exchanger provided in an indoor air passage from the indoor intake port to the indoor exhaust port, a circulation blower for blowing air from the indoor intake port to the indoor exhaust port, an indoor exhaust port and an outdoor air intake pipe A ventilation blower having a built-in blower for blowing air from the outdoor air intake pipe to the indoor exhaust port, the indoor unit and the ventilation blower are installed in parallel, and the outdoor air sucked by the ventilation blower is used as the indoor unit. It is configured to blow air to the indoor air intake port.

When the ventilation blower is driven, outdoor air flows into the room from the indoor exhaust port of the ventilation blower through the outdoor air intake pipe. As a result, fresh outdoor air can be smoothly taken into the room. Then, this fresh outdoor air is taken into the inside of the air conditioner from the indoor air intake port of the air conditioner,
After being heated or cooled through the heat exchanger, it is allowed to flow into the room from the indoor exhaust port, so that it is possible to always heat or cool the room with the outdoor air.

In order to achieve the second object, the ventilator of the invention as claimed in claim 2 uses a flexible hose for the outdoor air intake pipe, and the flexible hose is provided in a duct passing through a through hole formed in a wall. The refrigerant is led out from the room to the outdoors through the pipe, and two ducts for circulating the refrigerant to the indoor unit of the air conditioner and a drain pipe connected to the indoor unit are passed through the duct. Accordingly, since the indoor air exhaust pipe and the drain pipe are each made of a flexible hose, they can be easily handled during construction, and for example, the through hole in the wall of the house can be shared with the refrigerant pipe of the air conditioner. At the same time, the indoor air exhaust pipe and the drain pipe can be integrated, and the piping work becomes even easier.

[0009]

Embodiments of the present invention will be described below. First, an example of the ventilation device will be described with reference to FIGS. 1 to 6. In FIG. 3, 1 is a schematically represented house, 2 is its interior, 3 is outdoor (outdoor), 4 is a wall, and 5 is a through hole formed in this wall 4.

1 to 6, reference numeral 11 denotes an indoor unit of a room air conditioner which is a wall-mounted air conditioner. The indoor unit 11 has an outer shell formed by an air conditioner body 12 as a device body and an air conditioner front panel 13 attached to the front surface of the air conditioner body 12.
The air conditioner front panel 13 has a plurality of slit-shaped indoor intake ports 14 formed on the upper side,
The indoor exhaust port 15 is formed in the lower part. The indoor exhaust port 15 is provided with a louver 16 having a variable angle. Then, in the air conditioner main body 12, the indoor intake port 14
From the indoor air passage 17 to the indoor exhaust port 15 is formed, in the indoor air passage 17, an air conditioner fan motor 18 which is a circulation blower for blowing air from the indoor intake port 14 to the indoor exhaust port 15 is provided. In addition, a heat exchanger 19 is provided in front of the air conditioner fan motor 18. Further, a drain pan 21 is provided between the heat exchanger 19 and the air conditioner fan motor 18, and a drain pipe 22 composed of a flexible hose is provided below the drain pan 21. Further, the indoor air passage 17
An air filter 23 is provided between the air conditioner front panel 13 and the heat exchanger 19.

The drain pipe 22 has a through hole 5 in the wall 4 of the house 1.
The drain pipe 22 is led out of the outdoor 3 through the inside of a sleeve (duct) 26 passing through the through hole 5 of the wall 4. As shown in FIG. 6, a drain pipe 22 and a gas-side refrigerant pipe 27 and a liquid-side refrigerant pipe 28 between the indoor unit 11 and the outdoor unit of the air conditioner pass through one sleeve 26.

The air conditioner body 12 is also provided with a ventilation fan 30, which is a ventilation blower. An indoor exhaust port 31 for allowing outdoor air to flow into the room 2 is provided on the front side of the ventilation fan 30, and an elbow-shaped outdoor air intake pipe 32 is connected to the rear side of the ventilation fan 30 to provide a built-in blower 33. Thus, the outdoor air sucked from the outdoor air intake pipe 32 is blown into the room 2 from the indoor exhaust port 31. The indoor exhaust port 31 is provided with a louver 35 whose angle can be changed. The louver 35 is attached toward the indoor intake port 14 side of the air conditioner body 12, and the indoor fan 2 is installed by the ventilation fan 30. The outdoor air taken in is sent to the indoor intake port 14 of the air conditioner body 12.
In this embodiment, the outside air intake pipe 32 connected to the back side of the ventilation fan 30 has a diameter of, for example, 25 to 100 mm.
It is led out to the outdoor 3 through a through hole 5A in the wall 4.
In FIG. 3, 34 is a partition wall of the rooms 2A and 2B in the room 2, 35 is a ventilation port formed in the partition wall 34, and 36 is a ventilation grill formed in the wall 4 of the house 1.

Next, the operation of the above configuration will be described. When the air conditioner is used, in the indoor unit 11, by driving the air conditioner fan motor 18, the air in the room 2 is sucked into the air conditioner main body 12 from the indoor intake port 14 through the air filter 23, and the heat in the indoor air passage 17 is taken. After being cooled or heated by the exchanger 19, it flows into the room 2 again from the indoor exhaust port 15. In addition, water generated by dew condensation in the heat exchanger 19 during cooling is drained from the drain pan 21 to a drain pipe.
It is discharged to the outside 3 through 22.

When performing ventilation, a fan of the ventilation fan 30
Drive 33. By this driving, the air in the outdoor 3 passes through the outdoor air intake pipe 32 and is discharged from the indoor exhaust port 31 of the ventilation fan 30. The discharged outdoor air is blown toward the indoor intake port 14 of the air conditioner body 12 by the louver 35 of the indoor exhaust port 31. As a result, by driving the air conditioner fan motor 18, the outdoor air sucked by the ventilation fan 30 is cleaned from the indoor intake port 14 through the air filter 23, and the heat exchanger 19
After being heated or cooled through the chamber, it flows from the indoor exhaust port 15 into the room 2. When the outdoor air is taken in by the ventilation fan 30, the internal pressure of the room 2 rises, but the outdoor air passes through the ventilation port 35 formed in the partition wall 34 and the ventilation grill 36 formed in the wall 4 of the house 1. It is exhausted to 3. As a result, the increase in the internal pressure of the room 2 is prevented, and the air outside the room 3 is smoothly taken into the room 2. The drain pipe 22 of the indoor unit 11 can also be used for exhaust. In this case, the drain pipe 22 is also for drainage from the heat exchanger 19 during cooling, but water has a property of flowing along the inner surface of the pipe 22, while air is in the central portion of the drain pipe 22. Since it can be passed through, both drainage and drainage can be done without trouble by using one drain pipe 22.

As described above, according to the above construction, the fresh outdoor air can be smoothly taken into the room 2 by the ventilation fan 30. Then, this fresh outdoor air is supplied to the air conditioner body 12
Since it is taken into the inside of the air conditioner main body 12 from the indoor air intake port 14 of the vehicle, heated or cooled through the heat exchanger 19, and then flows into the indoor room 2 from the indoor exhaust port 15, it is always possible to obtain fresh outdoor air. Thus, it becomes possible to heat or cool the room 2.

7 and 8 show a second embodiment of the present invention. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. In this second embodiment,
Like the drain pipe 22, an outdoor air intake pipe 40 connected to the ventilation fan 30 for flowing the outdoor air into the room 3 is formed of a flexible hose. And this outdoor air intake pipe 32
Are led out to the outside 3 through the through hole 5 in the wall 4 of the house 1. The drain pipe 22 is also led out to the outside 3 through the through hole 5 in the wall 4 of the house 1. The piping is covered with a decorative cover (not shown).

FIG. 8 is a perspective view showing a section of a sleeve (duct) 26 passing through the through hole 5 of the wall 4. As shown in FIG. 8, in one sleeve 26, together with the gas side refrigerant pipe 27 and the liquid side refrigerant pipe 28 between the indoor unit 11 and the outdoor unit of the air conditioner, the drain pipe 22 and the outdoor air, which are flexible hoses, respectively. The intake pipe 40 is passed through. The outdoor air intake pipe 40 has a sufficiently large diameter for increasing the flow rate of air. In order to pass the four tubes 22, 27, 28, 40, including those with a large diameter, the diameter of the sleeve 26 is sufficiently large, for example, 65 to 100 mm.

As described above, in this embodiment, since the outdoor air intake pipe 40 connected to the drain pipe 22 and the ventilation fan 30 is made of the flexible hose, it can be easily handled during construction. Further, since the piping work can be easily performed, the cost can be reduced. For example, as described above, the refrigerant pipes 27 and 28 of the air conditioner and the through hole 5 of the wall 4 of the house 1
It is also possible to share the pipes, which makes piping work easier and reduces the space required for piping.

The present invention is not limited to the above embodiment, and various modifications can be made. For example,
In the above-described embodiment, the wall-mounted air conditioner and the ventilation fan have been described as an example, but the present invention is also applicable to a ceiling-embedded type, a ceiling hanging type, a floor-standing type air conditioner and a ventilation fan. Further, the air conditioner and the ventilation fan may be integrated.

[0020]

According to the ventilator of the present invention, the indoor air intake port and the indoor air exhaust port provided in the indoor unit of the air conditioner and the indoor air passage from the indoor air intake port to the indoor air exhaust port are provided. A heat exchanger provided, a circulation blower that blows air from the indoor intake port to the indoor exhaust port, an indoor exhaust port and an outdoor air intake pipe, and a blower that blows air from the outdoor air intake pipe to the indoor exhaust port. With a built-in ventilation blower, the indoor unit and the ventilation blower are installed in parallel, and by being configured to blow the outdoor air sucked by the ventilation blower to the indoor intake port of the indoor unit, Heating or cooling can be performed while taking in fresh outdoor air.

According to the ventilation device of the second aspect of the invention, a flexible hose is used for the outdoor air intake pipe, and the flexible hose is led out from the room to the outside by passing through the duct passing through the through hole formed in the wall. At the same time, by passing through the duct two refrigerant pipes for circulating a refrigerant to the indoor unit of the air conditioner and a drain pipe connected to the indoor unit, the drain pipe and the indoor air exhaust pipe are put together,
Furthermore, since each of the flexible hoses is led out from the room to the room through a common through hole formed in the wall, it is possible to easily perform the piping work of the outdoor air intake pipe, the indoor air exhaust pipe and the drain pipe at the time of construction. The required space can be reduced and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an air conditioner unit and a ventilation fan showing a first embodiment of the present invention.

FIG. 2 is a front view of the above air conditioner unit and a ventilation fan.

FIG. 3 is an explanatory cross-sectional view showing an outline of the entire air conditioning system of the above.

FIG. 4 is a perspective view of the same ventilation fan.

FIG. 5 is an exploded side view showing an example of the above air conditioner unit.

FIG. 6 is a sectional view of the same piping.

FIG. 7 is a perspective view of a ventilation fan showing a second embodiment of the present invention.

FIG. 8 is a perspective view showing a cross section of piping.

[Explanation of symbols]

5 through holes 11 Indoor unit (air conditioner) 14 Indoor air intake 15 Indoor exhaust port 17 Indoor air passage 18 Air conditioner fan motor (blower for circulation) 19 heat exchanger 22 Drain pipe 30 Ventilation fan (blower for ventilation) 31 Indoor exhaust port 32,40 Outdoor air intake pipe 33 blower

Claims (2)

[Claims] 1. An indoor intake port and an indoor exhaust port provided in an indoor unit of an air conditioner, a heat exchanger provided in an indoor air passage from the indoor intake port to the indoor exhaust port, and the indoor intake port A blower for circulation that blows air from the
It has an indoor exhaust port and an outdoor air intake pipe, and is provided with a ventilation blower having a built-in blower that blows air from this outdoor air intake pipe to the indoor exhaust port, and the indoor unit and the ventilation blower are installed side by side for ventilation. A ventilator configured to blow the outdoor air sucked by a blower to an indoor intake port of the indoor unit. 2. A flexible hose is used for the outdoor air intake pipe, the flexible hose is passed through a duct passing through a through hole formed in a wall to be led out from the indoor to the outdoor, and the duct is used for the indoor of the air conditioner. The ventilation device according to claim 1, wherein two refrigerant pipes for circulating a refrigerant through the unit and a drain pipe connected to the indoor unit are passed.