JP2512058B2 - Ventilation air conditioning unit - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a ventilation air conditioning unit provided with a perimeter zone for a building or the like.

2. Description of the Related Art Conventionally, a ventilation air conditioning unit of this type was previously proposed (Japanese Patent Application No. 61-300993) having a structure as shown in FIG.
That is, the main body 1 of the ventilation air conditioning unit is installed so as to be joined to a chamber (not shown) in contact with the outer wall of the perimeter zone. The inside of the main body 1 is divided into an air conditioning chamber 3 and a ventilation chamber 4 on the left and right by a first partition plate 2. An air conditioner blower 5 for indoor circulation and a heat exchanger 6 for passing a coolant such as cold / hot water are provided on the air conditioning room 3 side, and a lower side is connected to the indoor side or closed. A first damper 7 to be selected and a second damper (not shown), which is not shown and is closed so as to communicate with the outdoor side, are provided. Above the damper 7, coarse dust for dust removal is provided. Filter 8
And a high performance filter 9. On the other hand, ventilation room 4
A motor plate 10 which is provided so as to separate the upper and lower parts, a motor 11 attached to the motor plate 10 and located in the lower chamber, and this motor.
Exhaust fan 12 and intake fan 13 installed on both sides of 11
And outlets 14 and 15 thereof are provided with ventilation dampers 16 and 17, respectively. A rectangular parallelepiped total heat exchanger 18 is provided above each of the discharge ports 14 and 15, and a second partition plate 19, a third partition plate 20, and a fourth partition plate are provided so as to extend from their respective products. 21, fifth
The partition plate 22 holds the total heat exchanger 18.
Further, an exhaust port 23 communicating with the chamber is provided on the rear surface portion of the main body 1 on the exhaust downstream side of the total heat exchanger 18, and a rear plate 21 portion on the suction side upstream side of the total heat exchanger 18 is provided from the chamber. A ventilation inlet 24 is provided for intake of outdoor air. On the other hand, the first partition plate 2 has an intake communication port 25 that communicates the air chamber 3 side and the heat exchanger 6 side, and an exhaust communication port 26 that communicates from the air conditioning chamber 3 side to the ventilation chamber 4 side when indoor air is exhausted. Is provided.

In the above configuration, the first damper 7 is provided on the air conditioning room 3 side.
When the air blower 5 is opened and the blower 5 is operated, indoor air flows in through the indoor intake port 7a as shown by the arrow A, passes through the coarse dust filter 8 and the high performance filter 9, and passes through the heat exchanger 6. Indoor air outlet 27
Is blown out indoors. On the other hand, during ventilation, the motor 11 of the ventilation chamber 4 is operated to open the first damper 7 of the air conditioning chamber 3 and the ventilation dampers 16 and 17 are opened, so that the exhaust air from the room to the outside is indicated by the arrow B. As shown, it flows in from the indoor intake port 7a, passes through the exhaust communication port 26, and is sucked by the exhaust fan 12,
It passes through the total heat exchanger 18 from the discharge port 14 and is exhausted to the outside through the chamber (not shown) from the exhaust port 23. on the other hand,
As shown by an arrow C, the outdoor air flows in from the ventilation intake port 24 by the intake fan 13 and from the discharge port 15 to the total heat exchanger 18.
Through which the cold air in the exhaust gas is collected, and the collected cold hot air flows from the intake communication port 25 to the leeward side of the heat exchanger 6 in the air conditioning chamber 3, and the outside air is taken into the room from the indoor outlet 27. It was a thing.

[Problems to be Solved by the Invention] With such a conventional configuration, the intake amount and the exhaust amount are extremely small during ventilation. That is, at the time of exhaust, as shown by the arrow B, the amount of exhausted air is sucked from the indoor intake port 7a on the first damper 7 side of the air conditioning chamber 3 side and flows into the exhaust communication port 26 in a small amount. Since the pressure in the air conditioning chamber 2 is lower due to the operation of the blower 5, the amount of air drawn to the blower 5 side as shown by the dotted arrow L and flowing into the exhaust fan 12 side from the exhaust communication port 26 becomes smaller. On the other hand, as shown by an arrow C, the intake air from the outside flows in through the ventilation intake port 24, passes through the total heat exchanger 18 through the discharge port 15 by the intake fan 13, and flows into the air conditioning chamber 3 through the intake communication port 25. At this time as well, the air-conditioning room 3 side is in the direction in which it is blown out toward the room side by the blower 5, and since the pressure is high, the intake air communication port
25, the amount of air flowing into the air-conditioning room 3 was very small, so there was a problem that both intake and exhaust were small and sufficient ventilation could not be obtained.

The present invention solves such a problem, and an object of the present invention is to obtain a ventilation device that can sufficiently obtain both intake and exhaust.

Means for Solving the Problem In order to solve this problem, the present invention includes a main body that is joined to a chamber, and a first partition plate that divides the inside of the main body into an air-conditioning room and a ventilation room is provided on the first partition plate. The formed intake communication port is faced to the air-conditioning blower side, and the air-conditioning chamber forms an air flow path that inhales from the outside air cooling intake port or the indoor intake port and blows out from the indoor outlet port, through the air filter. An air blower and a heat exchanger for inhaling air, a damper for opening and closing the outside air cooling intake port and an indoor intake port are provided, and a second partition plate for supporting a motor is provided on the ventilation chamber side, and the motor is provided by the second partition plate. The exhaust fan and the intake fan provided on both shafts are divided, and an in-air exhaust port for exhausting indoor air to the exhaust fan side and a ventilation intake port for taking in outdoor air to the back plate side intake fan side On the back plate side An exhaust port for exhausting air to the outside is provided, and a total heat exchanger is provided at the intersection of the exhaust flow path exhausted from the indoor exhaust port and the intake flow path sucked from the ventilation intake port, and the total heat An intake air passage communicating with the intake communication port is formed by one of the partition plates supporting the exchanger, and a free damper that opens when the atmospheric pressure in the room is increased during cooling of the outside air is provided on the ventilation chamber side.

Operation With this configuration, when air conditioning is performed, the damper on the outside air cooling intake side is closed, and indoor air is taken in through the indoor intake port, and passes through the heat exchanger via the air-conditioning blower via the air filter to blow indoor air. When air conditioning is performed by the air flow path that blows out from the outlet and the outside air is cooled, the damper on the air intake side is closed, the outside air is taken in through the outside air cooling intake port, and the heat exchanger (cooler (Without passing through the medium)
The outside air is cooled by the outside air cooling flow path which is blown out from the indoor outlet. On the other hand, when performing ventilation, the indoor air is taken in from the indoor exhaust port on the ventilation chamber side by the ventilation blower, exhausted from the exhaust port via the total heat exchanger by the exhaust fan, and the intake air is exhausted by the intake fan. Outdoor air flows in through the mouth, passes through the total heat exchanger, passes through the intake air passage, is taken in by the air conditioner blower on the air conditioning room side from the intake air communication port, and is blown into the room from the indoor outlet through the heat exchanger. The Rukoto.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 6. As shown in FIG. 4, the chamber 31 is installed so as to be joined to the outer wall 30, and the main body 32 of the ventilation and air conditioning unit is installed so as to be joined to the chamber 31. As shown in FIG. 1, the inside of the main body 32 is divided into an air conditioning chamber 33 and a ventilation chamber 34 by a first partition plate 35, and the first partition plate 35 has an intake communication port 36 through which outdoor air is sucked. It is provided. Below the air-conditioning chamber 33, an indoor intake port 37a, a first damper 37 that is opened when indoor air is taken in, that is, when air conditioning is performed, and an outdoor air intake only when performing outdoor air cooling. A second damper 38 (FIG. 3) is provided, and a coarse dust filter 39 and a high-performance filter 40 located above it are provided above these dampers. Also air-conditioned room 33
The air-conditioning blower 42 attached to the motor plate 41, and a heat exchanger 43 located above the air-conditioner blower 42 for passing a refrigerant body are provided, and the air passing through the heat exchanger 43 is formed in the rear. The air is blown out from the indoor outlet 44 (arrows A and B).

On the other hand, on the ventilation chamber 34 side, a motor 45 and a ventilation blower 48 including an exhaust fan 46 and an intake fan 47 provided on both shafts of the motor 45 are provided, and an L-shaped second partition plate 49 substantially drives the motor 45. The second partition plate 49 divides the exhaust fan 46 side from the intake fan 47 side.
Then, below the ventilation chamber 34, facing the exhaust fan 46,
An indoor exhaust port 50 that takes in indoor air and flows in the exhaust direction,
The opening 51 is formed. Further, on the intake fan 47 side, there is provided a ventilation intake port 52 communicating with the outside for intake and opening to the back side. A rectangular parallelepiped total heat exchanger 60 is disposed above the discharge ports 53 and 54 of the exhaust fan 46 and the intake fan 47. A fourth partition plate 55, a fifth partition plate 56, a sixth partition plate 58, and a seventh partition plate 59 are provided so as to extend from the respective edges of the total heat exchanger 60.
~ 59 exhaust path through the total heat exchanger 60 (arrow C)
And an intake passage (arrow D) are formed.

The seventh partition plate 59 is bent downward from the middle to form a guide plate 61, and an intake air passage 62 is formed so as to communicate with the intake communication port 36. Further, filters 63, 64 are attached to the exhaust surface and the intake surface of the total heat exchanger 60. Furthermore, an exhaust port 65 for exhausting the room air that has passed through the total heat exchanger 60 to the outside is provided on the back plate side, and the air pressure inside the room becomes high at the opening of the side wall of the ventilation room 34 during the outside air cooling. Flexible damper 66 that opens only when it swings freely
Is provided.

Note that arrow A indicates the indoor circulation channel during air conditioning, and arrow B
Indicates an outside air cooling flow path for simultaneous outside air cooling, arrow C indicates an exhaust flow path during ventilation, and arrow D indicates an intake flow path during ventilation as well.

Further, the chamber 31 shown in FIG.
A chamber ventilation intake port 52a matching 52 and a chamber exhaust port 65a matching exhaust port 65 are provided.
A chamber outside air intake port 67a that coincides with the outside air intake port 67 shown in FIG. 3 and a chamber intake port 68 shown by a dotted line on the back side are opened.

In the above-described configuration, the heat exchanger 43 will be described as flowing a refrigerant body (or cold / hot water) to perform heating / cooling, and to perform cooling and ventilation only by outside air. That is, when air conditioning and ventilation are performed simultaneously, the air conditioning blower 42 and the ventilation blower 48 are operated at the same time. Then, on the side of the air conditioning room 33, the first damper 37 is opened as shown in the indoor circulation flow path indicated by the arrow A to allow room air to flow in through the indoor intake port 37a, pass through the coarse dust filter 39 and the high performance filter 40, and perform air conditioning. After passing through the air blower (42) for the heat exchanger (43), cold air or warm air is blown and blown out indoors from the indoor air outlet (44). At the same time, on the side of the ventilation chamber 34, indoor air flows in through the opening 5 of the indoor exhaust port 50 regardless of the air conditioning chamber 33, passes through the total heat exchanger 60 through the discharge port 53 by the exhaust fan 46, and the exhaust port Since the air is exhausted to the outside from the chamber 65 through the chamber exhaust port 65a (Fig. 6), the exhaust amount becomes large. On the other hand, the outdoor air that has flowed in from the chamber ventilation intake port 52a by the intake fan 47 passes through the ventilation intake port 52, and then the discharge port 54 as shown by arrow D.
Although it passes through the total heat exchanger 60, the heat at the time of exhaust is recovered at this time, flows through the intake air passage 62 in the guide plate 61, and is sucked by the air conditioning blower 42 from the intake communication port 36. , And joins the indoor circulation flow path indicated by arrow A, and is blown out into the room from the indoor outlet 44. That is, the intake communication port 36 is connected to the air conditioning blower 42.
The amount of intake is large because it is made to face and suck.

In addition, when the outside air is cooled, only the air conditioner blower 42 is operated, and the second damper 38 (FIG. 3) is opened and the first damper 38 is opened.
By closing the damper 37, the outdoor air flows in through the chamber intake port 67a shown in FIG.
From the outside air intake port 67 on the main body 32 side, pass through the coarse dust filter 39 and the high-performance filter 40, and then through the air conditioning blower 42 and the heat exchanger 43.
(The refrigerant body does not flow at this time) and passes through the indoor outlet
From 44, the air is blown out into the room and only the outside air is introduced to cool the outside air at night or in the middle of summer.

Next, when air pressure in the room increases during air conditioning, ventilation, or outside air cooling, the ventilation room shown in FIG.
The free damper 66 provided on the 34 side is opened to the dotted line position, and the indoor air is exhausted to the outside through the exhaust port 65 as indicated by the dotted arrow E, so that the atmospheric pressure in the room is maintained well.

EFFECTS OF THE INVENTION According to the present invention, as is apparent from the description of the embodiment, the first partition plate 35 that divides the air conditioning chamber 33 and the ventilation chamber 34 is provided with the intake communication port 36 facing the air conditioning blower 42. , Second partition
An indoor exhaust port 50 and an opening that face the exhaust fan 46 side are formed on the ventilation chamber 34 side by partitioning the intake fan 47 side and the exhaust fan 46 side of the intake air passage on the ventilation chamber 34 side communicating with the intake communication port 36 by 49. Since the portion 51 is provided to perform the intake and the exhaust, the intake is sucked by the air conditioning blower 42 to increase the intake amount from the outside, and the exhaust is provided with the indoor exhaust port 50 on the ventilation chamber 34 side. By exhausting the air as described above, a sufficient amount of exhaust can be obtained regardless of the air conditioning room 33 side.

[Brief description of drawings]

FIG. 1 is a sectional configuration diagram of a ventilation air conditioning unit according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of the ventilation air conditioning unit on the ventilation chamber side, and FIG. 3 is a vertical cross section of the ventilation air conditioning unit on the air conditioning chamber side. FIG. 4 is a plan view showing a joined state of the chambers of the ventilation air conditioning unit, FIG. 5 is a cross-sectional view of the exhaust flow passage on the ventilation chamber side where the chambers of the ventilation air conditioning unit are joined, and FIG. 6 is the ventilation. FIG. 7 is a perspective view of a chamber of an air conditioning unit, and FIG. 7 is a sectional configuration diagram of a conventional ventilation air conditioning unit. 31 …… Chamber, 32 …… Main body, 33 …… Air conditioning room, 34 ……
Ventilation chamber, 35 …… First partition, 36 …… Intake communication port, 37 ……
1st damper, 37a ... Indoor air inlet, 38 ... Second damper, 39 ... Coarse dust filter, 40 ... High performance filter, 42
...... Air conditioner blower, 43 ...... Heat exchanger, 44 …… Indoor outlet, 45 …… Motor, 46 …… Exhaust fan, 47 …… Intake fan, 49 …… Second partition, 50 …… Indoor exhaust Mouth, 52 ... Ventilation / intake port, 60 ... Total heat exchanger, 62 ... Intake air passage, 65 ... Exhaust port, 66 ... Free damper.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenichiro Kudo Inventor Kenichiro Kudo 2-2-2 Otemachi, Chiyoda-ku, Tokyo NTT Tei Urban Development Co., Ltd. (72) Inventor Masaru Ohara 2 Otemachi, Chiyoda-ku, Tokyo 2nd, 2nd, NC NT City Development Co., Ltd.

Claims (1)

(57) [Claims] 1. A main body 32 joined to a chamber 31 is provided, and an air conditioning room 33 and a ventilation room 34 are provided in the main body 32 by a first partition plate 35.
The first partition plate 35 is formed so that the intake communication port 36 faces the air conditioning blower 48 side, and the air conditioning chamber 33 is sucked from the outside air cooling intake port 67 or the indoor intake port 37a, The air conditioner blower that takes in air through a filter
42 and a heat exchanger 43 are provided to form an air flow path blown out from the indoor outlet 44, and dampers 37 and 38 for opening and closing the outside air cooling inlet 67 and the indoor inlet 37a are provided, and the ventilation chamber 34 side is provided. Is provided with a second partition plate 49 for supporting the motor 45 to partition the exhaust fan 46 side and the intake fan 47 side provided on both shafts of the motor 45, and the intake fan 47 side is a ventilation for taking in outdoor air. An intake port 52 and an exhaust port 65 that is also located above the back plate and exhausts to the outside, and an exhaust flow path exhausted from an indoor exhaust port 50 provided below the ventilation chamber 34 side, and the ventilation. Total heat exchanger at the intersection with the intake flow path that is taken in through the intake port 52
Along with the provision of 60, a partition plate 59 that supports the total heat exchanger 60 forms an intake air passage communicating with the intake communication port 36, and the side wall of the ventilation chamber 34 has an air pressure inside the room when cooling the outside air. Free damper 66 that opens when the height is raised
A ventilation and air conditioning unit.