JPS6294742A - Separate type air conditioner - Google Patents

Abstract

PURPOSE:To prevent pressure reduction in the indoor air due to imbalance in the suction air and the exhaust air and avoid draft into the room by drawing air by an indoor blower through an opening in the partition board on the side of an outdoor unit which partitions a total heat exchanging unit and drawing concentratedly to a duct the air sucked by an outdoor blower by means of an indoor blower with the duct extended to the side of an outdoor blower opened to provide a side end face opening and a lower end face opening. CONSTITUTION:When a separate type air conditioner is operated, the outdoor air is sucked into an outdoor blower 26 as shown by the arrow mark A in the figure and from its outlet 28 the air passes through an outdoor heat exchanger 27 as shown by the arrow mark B to be discharged out of the room as shown by the arrow mark C, forming the main air flow route. Part of the air that flows from the outlet 28 to the outdoor heat exchanger 27 passes from both side end opening and lower end opening of a duct 31 as shown by the arrow marks D and E through an opening 30 and a total heat exchanger 32 to an indoor unit 24, then passes through an indoor heat exchanger 35 to be discharged to the room through an outlet opening 36. The air that reaches the indoor unit 24 via the total heat exchanger 32 is drawn by operating an indoor blower 34.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an air intake and exhaust system for an individual air conditioner.

BACKGROUND OF THE INVENTION Conventionally, the air intake and exhaust air during cooling and heating operation of an individual air conditioner installed in a verimator zone of a building or the like has been configured as shown in FIG. A main body 2 of the individual air conditioner installed on a waist wall below a window 1 includes an indoor unit part 3, a total heat exchange unit part 4, and an outdoor unit part 6. In the outdoor unit section 6, when the outdoor blower 6 is operated, outside air flows in as shown by arrows A and H, passes through an outdoor heat exchanger 8 provided above the motor fixing plate 7 as shown by arrow C, and then flows in the direction of the arrow. As shown in the arrow E, a part of the outdoor air that has entered the main flow path for exhausting to the outdoors and above the motor fixing plate 7 is transferred to the total heat exchange unit section 4 through the first opening 10 of the partition plate 9 as shown by the arrow E. The air outlet 1 passes through the total heat exchanger 11 and is induced by the operation of the indoor heat exchanger 12 of the indoor unit section 3.
Blow fresh air into the room as shown by arrow F in 3.

On the other hand, in the indoor unit section 3, indoor air sucked in from the bottom surface as indicated by arrow G passes through an air filter 14 and an indoor blower 12. A flow path that passes through the indoor heat exchanger 16 and is blown out from the outlet 13 into the room, and a flow path that flows upward as shown by arrow H from the bottom surface of the total heat exchange unit section 4 and passes through the total heat exchanger 11. The air then wraps around downward, is attracted by the outdoor fan 6 through the second opening 16 of the partition plate 9, passes through the outdoor heat exchanger 8, and is exhausted outdoors as shown by the arrow. However, although the air flowing into the outdoor unit section 5 side from the second opening 16 flows to the outdoor heat exchanger 8 by the outdoor blower 6,
In fact, when it goes around above the motor fixing plate 7, it mixes with the air indicated by arrow E, and also contains air that flows into the room together with the outside air.

In this way, conventionally, as shown by arrow H, indoor air is passed through the total heat exchanger 11 and then passed through the second opening 16 to the outdoor blower 6. While exhausting the air to the outdoors via the outdoor heat exchanger 8, the intake of outdoor air is allowed to flow in as shown by arrows A and B, and total heat is exchanged from above the motor fixing plate 7 through the first opening 1o as shown by arrow E. Vessel 1
1, the air flows to the indoor unit section 3, and is taken into the room through the air outlet 13.

Problems to be Solved by the Invention In such a conventional configuration, the first opening 1o and the second opening 11 provided in the partition plate 9 are in contact with each other in the outdoor unit 6 in terms of the balance between the intake air amount and the exhaust air amount. If it is open toward the inside, the intake amount and exhaust amount will be unbalanced. In other words, as shown by arrow E, outside air is sucked in by the outdoor blower 6, and a portion of the sucked air is taken in through the first opening 1o, even though it is desired to increase the amount of intake air compared to the exhaust amount. It is not possible to secure a sufficient amount of intake air by inducing the blower 12, and depending on the indoor floor plan of the building, even though it is desired to maintain a balance between intake and exhaust air such that the indoor air pressure is high, the amount of exhaust air may increase. This had the problem of lowering the indoor air pressure.

The present invention solves these problems by increasing the amount of intake air compared to the amount of exhaust air, making the indoor air pressure higher, preventing a drop in indoor air pressure due to an imbalance in air intake and exhaust air, and reducing drafts. The purpose is to avoid inducing

Means for Solving the Problem In order to solve this problem, the present invention provides a main body of an individual air conditioner consisting of an outdoor unit section, a total heat exchange unit section, and an indoor unit section, It includes a partition plate on the outdoor unit side that partitions the replacement unit part, and a duct that is connected to the opening of the partition plate and is drawn by the indoor blower and extends to the outdoor blower side of the outdoor unit. and an opening on the bottom end surface.

Function: With this configuration, the outside air sucked in by the outdoor blower is drawn in by the indoor blower through the duct having side and bottom openings, and is then transferred through the total heat exchanger in the total heat exchange unit. Air will be taken into the room from the indoor unit.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. The main body 21 of the individual air conditioner installed on the waist wall below the window 2o of the building consists of an outdoor unit section 22, a total heat exchange unit section 23, and an indoor unit section 24. The outdoor unit section 22 includes an outdoor blower 26 that is integrated with a motor fixing plate 26, and an outdoor heat exchanger 27 that is provided at an angle. A duct 31 is provided that communicates with the opening 3o of the discharge plate 29 of the outdoor blower 26 and extends into the outdoor unit section 22. This duct 31 has a side end surface opening 31a and a lower end surface 31b, and the outdoor blower 26
A part of the air discharged from the discharge port 28 is drawn through the duct 31 and flows toward the total heat exchanger 32 side. The indoor unit section 24 has an air filter 33 on the suction side. An indoor heat exchanger 35 is installed at an angle above an indoor blower 34, and an air outlet 36 is provided on the top side. A compressor 37 is provided in the compressor room on one side. In addition, the partition plate 29 has a second
An opening 38 is provided to serve as an exhaust flow path for indoor air. The flange 39 provided on the duct 31 is only for fixing to the partition plate 29.

In the above configuration, when this individual air conditioner is operated, outside air passes through the sleeve to the outdoor blower 2 as shown by arrow A.
6, passes through the outdoor heat exchanger 27 as indicated by arrow B through the discharge ports 28 of both casings, and forms a main flow path for exhausting to the outdoors as indicated by arrow C. Then, a part of the outdoor heat exchanger 27
As shown in E, a large amount of outside air passes through the opening 3o, passes through the total heat exchanger 32, and reaches the indoor unit section 24, where it reaches the indoor heat exchanger 35.
The air passes through the air outlet 36 and is blown into the room. From the duct 31 to the indoor unit section 24 via the total heat exchanger 32
Air entering the room is induced by operating the indoor blower 34.

In the indoor unit section 24, indoor air is sucked in from below as shown by arrow F, passes through an air filter 33, reaches an indoor blower 34, passes through an indoor heat exchanger 35, and is blown into the room from an air outlet 36 as shown by arrow G. Ru. On the other hand, in the heat exchange unit section 23, indoor air is sucked in from below as shown by arrow H, flows upward, passes through the total heat exchanger 32, and once goes around downward, and then passes through the second opening 38 of the partition plate 29 to the outdoor unit section. 2
Here, the air flows into the outdoor air blower 26, passes through the outlet 28, passes through the outdoor heat exchanger 27 as shown by arrow B, and is exhausted outdoors as shown by arrow C. Note that the exhaust air discharged from the discharge port 28 may be mixed to some extent with the fresh air that has flowed in from the outdoors, but the outdoor blower 26 has a larger capacity than the indoor blower 34, and the duct 31 still has a large capacity. is located on the front side of the outdoor unit section 22, and the side end surface opening 31b and the bottom end surface opening 31b are formed thinly in the depth direction of the main body 21, so that it can be almost ignored, and the exhaust amount is returned again. However, the amount of intake and exhaust air is still slightly larger. The point is that the duct 31 acts like a hood to draw in more air.

The duct 31 is fixed to the partition plate 29 using the screw holes 40 in the flange 39, but the duct 31 can be removed when a large amount of air intake is not required, such as due to room-side divisions of the building. .

Effects of the Invention As described above, the present invention has an opening in the partition plate on the outdoor unit side that partitions the total heat exchange unit, which is drawn by the indoor blower, and a side end face opening that extends to the outdoor blower side of the outdoor unit. Since the outside air sucked in by the outdoor blower is drawn into the duct intensively by the indoor blower by opening the and the lower end surface opening, the intake air volume can be increased compared to the exhaust volume, and the indoor air pressure can be reduced. It will no longer be lower than outdoors. Therefore, it is possible to reliably achieve a balance in which the indoor air pressure is slightly higher, and it also has the effect of allowing the duct to be removed if a large amount of intake air is not required due to the building's zoning structure. .

[Brief explanation of drawings]

FIG. 1 is a perspective view of an individual air conditioner according to an embodiment of the present invention, FIG. 2 is a perspective view of a duct of the individual air conditioner,
FIG. 3 is a perspective view of a conventional individual air conditioner. 21...Main body, 22...Outdoor unit part, 23...Total heat exchange unit part, 24...
...Indoor unit section, 26...Outdoor blower,
27... Outdoor heat exchanger, 29... Partition plate, 31... Duct, 32... Total heat exchanger, 34... Indoor blower, 36...
Indoor heat exchanger, 31a... Side end opening, 31b
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Claims (1)

[Claims] A main body of an individual air conditioner including an outdoor unit, a total heat exchange unit, and an indoor unit; a partition plate on the outdoor unit side that partitions the total heat exchange unit;
Connected to this partition plate opening, it is attracted by an indoor fan,
An individual air conditioner comprising: a duct extending to the outdoor blower side of the outdoor unit; the duct has an end face opening on the duct side and a lower end face opening.