JPS6138972B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of an integrated air conditioner in which a refrigeration cycle is housed in a single case, and is capable of achieving high efficiency and low noise.

Conventionally, this type of integrated air conditioner has been constructed as shown in FIGS. 1 and 2. That is,
In the figure, an integrated air conditioner a has a board b,
An indoor ventilation system path c and an outdoor ventilation system path d are placed on the board b.
It is constructed by providing a partition wall e, an outer box f, etc. that separate the two parts. The outdoor ventilation system path d includes an outdoor heat exchanger h installed facing the back surface g, a motor i installed with its rotating shaft perpendicular to the partition wall e,
an axial fan j attached to one end of the motor i and blowing air toward the outdoor heat exchanger h;
Compressor k etc. are installed. Furthermore, the indoor ventilation system path c has an indoor heat exchanger m installed facing the front l, and an indoor heat exchanger m attached to the other end of the motor i, which directs the wind passing through the indoor heat exchanger m to the wind tunnel part n. A multi-blade fan for blowing air was installed.

Here, the configuration of an ideal ventilation system path for this type of integrated air conditioner will be explained. Needless to say, the lower the resistance of the ventilation system path, the better, but to achieve this, the area through which the air passes through the heat exchanger (hereinafter referred to as the front area), which is the element that makes up the resistance, must be wide and the depth through which the air can pass must be wide. The following conditions are required: the length (hereinafter referred to as the number of rows) is short, and the ventilation system path is wide and smooth with few bends. Only when these conditions are met will a ventilation system path with low ventilation resistance be constructed, and will it be possible to realize an integrated air conditioner that can blow a large volume of air with low noise using a small-capacity motor.

However, conventionally, this type of integrated air conditioner is installed through a wall or installed in a window, so the area in front of the unit is limited by the amount of light from the window, etc., so as to avoid making large holes in the wall. It was made as small as possible to avoid significant damage.

In addition, conventionally, this type of air conditioner was first designed to reduce costs by making it smaller.
As shown in Figures 2 and 2, since the focus is on driving the multi-blade fan o on the indoor side and the axial flow fan j on the outdoor side simultaneously with one motor i, the front side of the integrated air conditioner a The indoor heat exchanger m and the outdoor heat exchanger h have to be arranged along the rear surface g and the indoor side heat exchanger m and the outdoor heat exchanger h, respectively. The ventilation system paths c and d are narrow and curved, and at the same time, in order to secure these paths c and d, the front l and back g
The structure was such that the distance between them could not be made very small. Therefore, in the end, a fairly large capacity motor i is required for ventilation, and each heat exchanger m, h
Since the front surface area of motor i and heat exchangers m and h must be made smaller, it becomes necessary to increase the number of rows of each heat exchanger m and h to increase the depth dimension.
Both were expensive, had a long body depth, and were heavy. This results in the opposite of the original purpose of making the fan motor i cheaper, and it cannot be said to be a good ventilation structure. In other words, as mentioned above, priority is given to installing two fans o and j at both ends of one motor i inside a limited box, so the multi-blade fan o and the suction side and the blowout side of the axial fan j are It was not possible to create a side shape that would allow these fans o and j to operate with low noise. Therefore, the conventional structure inevitably had major problems such as generating large noise, requiring a large capacity motor, and becoming bulky. In addition, since a compressor k is installed in the outdoor ventilation system path d so as to block the ventilation of the axial fan j, the resistance of the outdoor ventilation system path d is increased.
In the end, this reduced airflow, increased noise, and increased the cost of the motor.

The present invention eliminates the above-mentioned drawbacks of the prior art, and the present invention will now be described in detail in the accompanying drawings, which illustrate one embodiment of the present invention.
The explanation will be given with reference to FIGS. 4, 5, and 6.

Reference numeral 1 designates the main body of the integrated air conditioner, which is composed of a base plate 2, a partition wall 3 provided on the base plate 2 and separating an indoor ventilation system path A and an outdoor ventilation system path B, an outer box 4, etc. ing. The indoor ventilation system path A includes an indoor heat exchanger 6 installed facing the front surface 5, and a multi-blade fan 7 for sucking indoor air from the front surface 5 side and supplying ventilation to the indoor heat exchanger 6. , an indoor fan motor 8 for driving the multi-blade fan 7, and a wind tunnel section 10 for guiding the wind blown from the multi-blade fan 7 into the room from the air outlet 9 at the upper part of the front surface 5 of the main body 1. There is. Furthermore, the outdoor ventilation system path B extends from the top surface 11 of the outer box 4 and the ridges 14 and 15 where the left and right side surfaces 12 and 13 having the left-side inlets 23 and 24 intersect, respectively, to the vicinity of the center of the board 2. V
The outdoor heat exchanger 17 has a central part 16 that is shaped like a letter and has a central part 16 inside the edge H of the substrate 2, and a rotating shaft that is positioned so that the axis of rotation is approximately perpendicular to the substrate 2. An axial flow fan 18 whose surface is provided near the top surface 11 of the outer box 4, and this axial flow fan 1
8, an air outlet 20 that sends out the air blown out by the axial fan 18, and a part of the outer fan 21 located almost above the center part 16 of the outdoor heat exchanger 17, which is connected to the substrate. 2 edge H
A horizontal high-pressure type rotary compressor 22 is provided so as to extend further down. A pipe (not shown) is provided at the lower end of the partition wall 3 to connect the parts of the substrate 2 located in both ventilation system paths A and B so that the condensed water generated in the indoor heat exchanger 6 can be stored together. There is.

The operation in the above configuration will be explained. In the indoor ventilation system path A, the multi-blade fan 7 is rotated by the rotation of the indoor fan motor 8, and the air sucked in from the room and passed through the indoor heat exchanger 6 is sent to the wind tunnel section 10, and then from the air outlet 9. It is blown out into the room. Here, unlike in the case of a conventional integrated air conditioner, the indoor fan motor 8 is separate from the outdoor fan motor 19 and is dedicated to indoor use, so that ventilation to the indoor ventilation system path A can be optimally performed. You can select your own rotation speed. Also, when selecting the position of the indoor fan motor 8, there is no need to take into consideration the position of the indoor fan or the outdoor fan, so the outdoor ventilation system path B
Since the indoor ventilation system path A can be selected independently from the above, it is possible to make the indoor ventilation system path A as small as possible, and at the same time, it is possible to downsize the indoor heat exchanger 6 and reduce costs. If the indoor side ventilation system path A can be made smaller in this way, the depth dimension of the outdoor side ventilation system path B can be made considerably wider than before. That is, in the outdoor ventilation system path B,
The outdoor heat exchanger 17 has both end portions 25 and 26 close to the rib portions 14 and 15 of the outer box 4, and the center portion 16 is located near the center of the board 2, so that the outdoor heat exchanger 17 is formed into a so-called approximately V-shape to increase the ventilation area. In addition, outdoor heat exchanger 17
This can improve performance, reduce ventilation resistance, and reduce costs.

Furthermore, since the area of the portion of the outdoor ventilation system path B that corresponds to the top surface 11 can be increased, the large diameter axial flow fan 18
In addition, when the air sucked in from the left and right side surfaces 12 and 13 is blown out from the air outlet 20 on the top surface 11, the air flow becomes almost linear, which reduces the resistance of the outdoor ventilation system path B. be able to. As a result, a large amount of air can be blown with low noise, and as in the case of the indoor ventilation system, the input to the indoor fan motor 19 can be small, so the outdoor heat exchanger 17 and the indoor fan motor 19 can be made smaller. , it becomes possible to reduce costs. In addition, since the center part 16 of the outdoor heat exchanger 17 is located within the edge H of the substrate 2, it will be exposed to condensed water generated by the cooling action of the indoor heat exchanger 6, and the outdoor heat exchanger will be cooled and its efficiency will increase. will improve. In particular, the V-shaped outdoor heat exchanger 17 has poor ventilation (near the central part 16).
It is very effective in improving efficiency because it is soaked in condensed water. Furthermore, the outdoor heat exchanger 17
The warmed condensed water reaches a temperature where it can easily evaporate, and natural evaporation of the condensed water is promoted.

In this way, the present invention provides a partition wall inside the outer box to form ventilation system paths for the indoor side and the outdoor side, and also installs an indoor blower and an indoor heat exchanger in the indoor ventilation system path and an indoor ventilation system path in the outdoor ventilation system path. Each of the indoor and outdoor blowers is equipped with an outdoor fan, an outdoor heat exchanger, and a compressor. The outdoor side air blower is disposed close to the outer box, and the outdoor side heat exchanger is approximately V-shaped with both ends located at the ridge where the left and right sides of the outer box and the top surface intersect, and the center part located on the board. and the compressor is disposed directly above the central portion, and an inlet is formed on the left and right sides of the outer box, and an outlet is formed on the top surface.
By making each indoor and outdoor blower independent, each indoor and outdoor ventilation system path can be optimally selected without being influenced by one ventilation system path. In other words, by making the indoor ventilation system path smaller, the width of the outdoor ventilation system path can be increased, and as a result, the outdoor heat exchanger can be formed into a substantially V-shape and have a large area, reducing ventilation resistance. For example, a large-diameter axial fan can be used to blow a large amount of air with low noise. In addition, the central part of the outdoor heat exchanger is cooled by being placed in the condensed water collected on the substrate, making it possible to further improve the efficiency of the heat exchanger and also to warm the condensed water and promote natural evaporation.

[Brief explanation of the drawing]

1 and 2 are a cross-sectional view and a longitudinal sectional view of a conventional integrated air conditioner, FIG. 3 is a perspective view of an integrated air conditioner showing an embodiment of the present invention, and FIG.
5 and 5 are a horizontal cross-sectional view and a longitudinal cross-sectional view of the same, and FIG. 6 is a cross-sectional view of the rear portion of the same. 2... Board, 3... Partition wall, 4... Outer box, A...
Indoor ventilation system path, B...Outdoor ventilation system path, 7...
Indoor blower (multi-blade fan), 16...center part,
17... Outdoor heat exchanger, 18... Outdoor blower (axial flow fan), 20... Air outlet, 22... Compressor, 23, 24... Suction port.

Claims (1)

[Claims] 1. A partition wall is installed inside the outer box to form indoor and outdoor ventilation system paths, and the indoor ventilation system path is connected to an indoor blower and indoor heat exchanger, and the outdoor ventilation system path is connected to an outdoor blower, and an indoor heat exchanger is connected to the indoor ventilation system path. An outside heat exchanger and a compressor are respectively provided, and each of the indoor and outdoor blowers is installed independently, and the above-mentioned indoor and outdoor blowers are installed close to the top surface of the outer box so that the rotation axis is perpendicular to the substrate forming the bottom of the outer box. An outdoor side blower is disposed, and the outdoor side heat exchanger is formed into a substantially V-shape with both ends located at the ridges where the left and right side surfaces and the top surface of the outer box intersect, and the center part located on the base plate. The center part is located in condensed water on the substrate,
An integrated air conditioner with an inlet on the left and right sides of the outer box and an outlet on the top.