JPS63189721A - Air conditioner - Google Patents

Abstract

PURPOSE:To protect an internal equipment generating heat and improve an efficiency of operation by a method wherein a third blower is connected to a shaft of an outdoor fan motor projected from a bottom surface of a base plate, a bottom casing is arranged below the base plate and a third air communication circuit communicating from an outdoor part to a compressor chamber, an electricity chamber and an outdoor part is provided. CONSTITUTION:A third blower 38 is rotated and outdoor air with a temperature of about 30 deg.C to 35 deg.C for example sucked from a suction hole 38 of a bottom casing 31 as indicated in an arrow C is flowed into a compressor chamber 36 as indicated by an arrow D through a first aeration hole 32 made at a base plate 30 so as to cool a compressor of which outer casing temperature is reached up to about 80 deg.C to 115 deg.C. After this operation, the air is reached to an electricity chamber 37 from third aeration holes 35 of a supporting plate 34 to cool an electrical facility part 28 generating heat. After this, as indicated by an arrow E, the air is passed through second aeration holes 33 of the base plate 30 and then is discharged to the outdoor part from a discharging hole 39 of a bottom casing 31.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an air conditioner.

BACKGROUND OF THE INVENTION In recent years, air conditioners have been made smaller and lighter in order to improve transport and installation work. As a result, the density of mounted parts has increased, and it has become important to maintain the temperature of internal equipment that generates heat within an acceptable range to ensure quality.

An example of a conventional air conditioner will be described below with reference to the drawings.

FIGS. 4 and 5 show an example of a conventional air conditioner. 1 in the figure is the air conditioner main body (hereinafter referred to as main body 1);
2 is a hole, 3 is a partition plate, 4 is a guider, 5 is a heat sink, 6 is an electrical component, 7 is a compressor, 8 is an indoor heat exchanger, 9 is an indoor fan, 10 is a front grill, 11 is an indoor 12 is an outdoor heat exchanger, and 13 is a compressor room.

The operation of the conventional air conditioner configured as described above will be described below.

First, talking about the outdoor ventilation circuit, the air passed through the outdoor heat exchanger 12 and sucked in is sent to the outdoor air blower 11.
It is discharged outside the room as shown by arrow A in FIG.

At this time, the static pressure near the outdoor air blower 11 becomes negative pressure compared to the surrounding area of the electrical component 6, and as a result, the high temperature air near the heat sink 5 of the electrical component 6, which generates heat, as shown in FIG. As shown by arrow B, the liquid passes through the hole 2 of the partition plate 3, passes through the guide 4, and is discharged to the outside. In other words, the heat generation of the electrical component 6 can be reduced to a permissible value or less.

Regarding such a conventional example, for example,
There is one shown in Publication No. 6842.

Problems to be Solved by the Invention However, in the above configuration, conditioned indoor air (for example, air at 21° C.) is
As a result, air flows as shown by arrow B in Figure 5, which means that the conditioned indoor air is discharged outdoors, which has the disadvantage of reducing the cooling capacity. There is.

Furthermore, in the above configuration, the high-temperature air in the compressor chamber 13 where the compressor 7 is located, whose shell temperature reaches, for example, 80°C to 115°C, cannot be discharged to the outside. 21°C) and the outer shell of the compressor 7 (e.g. 80°C to 115°C) (e.g. as much as 59°C to 94°C). As shown, heat is transferred from the surface of the main body 10 into the room. As a result, there is a drawback that the cooling capacity is reduced.

Therefore, in order to compensate for the decrease in cooling capacity, there are methods of enlarging the indoor heat exchanger 8 and outdoor heat exchanger 12, and methods of using a compressor 7 with a large capacity (for example,
No. 30830) is required, resulting in an increase in material costs.

In view of the above problems, the present invention provides an air conditioner equipped with a ventilation circuit for protecting internal equipment that generates heat and improving performance.

Means for Solving the Problems In order to solve the above problems, the air conditioner of the present invention has an indoor ventilation circuit that has an indoor heat exchanger and an indoor blower and is partitioned by a partition plate, and an outdoor ventilation circuit that has an indoor heat exchanger and an indoor blower. an outdoor ventilation circuit that includes a heat exchanger and an outdoor fan and is partitioned by the partition plate; one shaft is connected to the outdoor fan and the other shaft protruding from the substrate is connected to a third fan; The outdoor side fan motor, the third blower, and the bottom casing disposed below the board allow the compressor to be connected from the outdoors to the compressor room independently of the indoor side ventilation circuit and the outdoor side ventilation circuit. It is equipped with a third ventilation circuit that conducts from the room to the electrical room and further from the electrical room to the outside.

According to the above configuration, the present invention takes in outside air from the suction hole of the bottom casing by the third blower connected to the shaft of the outdoor fan motor protruding from the board, and guides it from the compressor room to the electrical room. , and can be discharged to the outside from the exhaust hole of the bottom casing. In other words, the heat generated from the compressor and electrical equipment can be dissipated outdoors by using outside air.

Therefore, the conditioned indoor air is not used for cooling and then discarded outdoors, and the temperature difference between the temperature of the compressor room and the indoor temperature can be reduced, and the amount of heat transferred indoors can be reduced. Can be done.

EXAMPLE Hereinafter, an air conditioner according to an example of the present invention will be described with reference to the drawings.

FIG. 1 shows an air conditioner, 2, in a first embodiment of the present invention.
3 is an outdoor heat exchanger, 24 is an outdoor fan, 25 is an indoor heat exchanger, 26 is an indoor fan, 27 is a partition plate, 28
is the electrical equipment section, 29 is the outdoor side 7 motor, 30 is the board, 3
1 is a bottom casing; 32 is a first plate provided on the substrate 30;
33 is a second ventilation hole provided in the substrate 30;
34 is a support plate, 35 is a third ventilation hole provided in the support plate 34, 36 is a compressor room, and 37 is an electrical room.

FIG. 2 shows a sectional view taken along line XX in FIG. 1, and 38 is a third blower.

FIG. 3 is an external perspective view showing the bottom casing 31, where 38 is an intake hole and 39 is an exhaust hole.

The operation of the air conditioner according to the first embodiment of the present invention configured as described above will be explained with reference to FIGS. 1, 2, and 3.

First, let's talk about the indoor ventilation circuit. Indoor heat exchanger 2
The indoor air that has passed through the indoor air blower 5 is supplied into the room from the outlet of the main body 21 by the indoor blower 26 as shown by the arrow A in FIG.

Next, we will discuss the outdoor ventilation circuit. Outdoor heat exchanger 2
This embodiment further includes a third ventilation circuit, which is independent of the above-mentioned indoor ventilation circuit and outdoor ventilation circuit. That is, as shown in FIG.
1 is disposed below the substrate 30, and by rotating the third blower 38, a temperature of, for example, 30° C. drawn in from the suction hole 38 of the bottom casing 31 in FIG.
Outdoor air at a temperature of about 35° C. is caused to flow into the compressor chamber 36 as shown by the arrow in FIG. After cooling the compressor, which reaches a temperature of 115°C from It can be blown out from the second ventilation hole 33 of the substrate 30 through the bottom casing 31 as shown by the arrow E in FIG. .

As described above, according to this embodiment, by providing the third ventilation circuit described above, heat generated from the compressor 22 in the compressor room 36 and heat generated from the electrical equipment section 28 inside the electrical room 37 can be removed. can be discharged outdoors.

Effects of the Invention As described above, the present invention connects the third blower to the shaft of the outdoor fan motor protruding from the bottom surface of the board, arranges the bottom casing below the board, and connects the compressor room and compressor from the outside. By providing a third ventilation circuit that runs from the machine room to the electrical room and from the electrical room to the outdoors, the heat generated from the compressor can be discharged outdoors, reducing the difference between the compressor outer shell temperature and the indoor temperature. By keeping it small, you can reduce heat leakage into the room.

Furthermore, the heat generated from the electrical equipment inside the electrical room can be discharged to the outside together with the outdoor air, and it is also possible to eliminate the need to discard the conditioned indoor air sucked in through the gap in the main body for cooling to the outside.

[Brief explanation of the drawing]

FIG. 1 is a schematic exploded perspective view showing an air conditioner according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line x-X in FIG. 1, and FIG.
FIG. 4 is a partially sectional front view showing a conventional air conditioner, and FIG. 5 is a cross-sectional view of the air conditioner installed in a window of a house. 23... Outdoor heat exchanger, 24... Outdoor blower, 25... Indoor heat exchanger, 26.
...Indoor blower, 27...Partition plate, 2
9... Outdoor fan motor, 30...
Substrate, 31...Bottom casing, 36...
...Compressor room, 37...Electrical room, 38...
...Third blower. Name of agent: Patent attorney Toshio Nakao 1 person! !
Ik2 diagram z7 Figure 3 q Figure 4, 53 Figure 5

Claims (1)

[Claims] an indoor ventilation circuit having an indoor heat exchanger and an indoor blower and partitioned by a partition plate; and an outdoor ventilation circuit having an outdoor heat exchanger and an outdoor blower and partitioned by the partition plate. an outdoor fan motor having one shaft connected to the outdoor fan and the other shaft protruding from the board connected to a third fan; and a bottom casing disposed below the third fan and the board. and a third ventilation circuit that conducts from the outdoors to the compressor room, from the compressor room to the electrical room, and further from the electrical room to the outdoors, independently of the indoor ventilation circuit and the outdoor ventilation circuit. Air conditioner equipped.