JP3946056B2 - Air conditioner outdoor unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an outdoor unit of an air conditioner.
[0002]
[Prior art]
FIG. 1 shows a cross-sectional view of an outdoor unit of a general air conditioner. The interior of the casing 1 of the outdoor unit is divided into left and right by a partition plate 2, and a machine room 3 is formed on one side and a heat exchanger room 4 is formed on the other side. Below the machine room 3, refrigeration cycle components such as a compressor 6 and a refrigerant pipe 13 are disposed. Above the machine room 3, an electrical box 5 containing electrical components such as a speed control device for the compressor 6 is disposed. In the heat exchanger chamber 4, a heat exchanger 8, a propeller fan 9, and the like are disposed.
[0003]
FIG. 7 is an exploded perspective view showing the structure below the partition plate 2. Below the partition plate 2, an opening 13 is cut out in a rectangular shape. A box-shaped protective cover 10 serving as a component storage chamber is screwed into several screw holes 14 provided around the opening 13 and protrudes from the machine chamber 3 side to the heat exchanger chamber 4 side.
[0004]
The protective cover 10 has a machine chamber 3 side surface and a bottom surface that are open, and the protruding surface 10a is a component that generates heat and is larger than other electrical components in the speed control device of the compressor 6. A coil component 7 such as a reactor or a coil for an active filter is screwed. A plurality of vent holes 11 are provided below the protruding surface 10 a of the protective cover 10. Since the interior space of the protective cover 10 is open to the machine room 3 side, the machine room 3 and the heat exchanger room 4 communicate with each other through these ventilation holes 11, and the entire space inside the protection cover 10 is a ventilation hole. 11 becomes an air passage for the air flowing through 11. Accordingly, the coil component 7 can be stored in the outdoor unit in a space-saving manner, and the coil component 7 can be cooled via the protective cover 10 in the heat exchanger chamber 4.
[0005]
Here, the vent hole 11 is provided below the protective cover 10 for the following reason. That is, when the vent hole 11 is disposed at a high position, rainwater blown by the rotation of the propeller fan 9 can easily enter the protective cover 10 through the vent hole 11, and the vent path inside the protective cover 10. This is because the coil component 7 is installed without being isolated, so that the coil component 7 may be wetted by water and have a bad influence such as poor insulation.
[0006]
Therefore, by providing the vent hole 11 below the protective cover 10, the water splashed by the propeller fan 9 is made difficult to enter the parts storage chamber. However, since intrusion of rainwater cannot be completely prevented, it is necessary to protect the coil component 7 from rainwater. In addition, since the vent hole 11 is located near the bottom of the protective cover 10, rainwater accumulated in the heat exchanger chamber 4 easily flows into the protective cover 10 through the vent hole 11.
[0007]
This invention is made in view of such a problem, and provides the outdoor unit of the air conditioner which can protect the components with comparatively high calorific value accommodated in the components storage room from rainwater. Objective.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention divides the inside of a housing into a machine room and a heat exchanger room by a partition plate, and installs a compressor in the machine room, a heat exchanger and a fan in the heat exchanger room, and In the inverter device which projects from the machine room side to the heat exchanger room side on the partition plate and is provided with a parts storage room opened on the machine room side, and generates heat in accordance with the speed control of the compressor inside the parts storage room In the outdoor unit of the air conditioner that houses the reactor or the coil for the active filter, the side wall and the upper surface other than the machine room side are closed in the component housing chamber, and the reactor or the active filter coil in the inverter device is mounted on the projecting surface that projects into the heat exchanger chamber side of the side surface of the equipment housing, a vent hole provided below the projecting exit surface, inside the equipment housing Thus, by providing a shielding plate in the horizontal direction slightly above the vent hole, an air passage that communicates the heat exchanger chamber and the machine chamber is formed through the vent hole, and It is characterized in that the reactor in the inverter device or the coil for the active filter is isolated.
[0009]
This ensures that rainwater entering the machine room through the vent hole can be prevented that the stick to parts of the component housing chamber.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of an outdoor unit of an air conditioner. The interior of the casing 1 of the outdoor unit is divided into left and right by a partition plate 2, and a machine room 3 is formed on one side and a heat exchanger room 4 is formed on the other side. Below the machine room 3, refrigeration cycle components such as a compressor 6 and a refrigerant pipe 13 are disposed. Above the machine room 3, an electrical box 5 containing electrical components such as a speed control device for the compressor 6 is disposed. In the heat exchanger chamber 4, a heat exchanger 8, a propeller fan 9, and the like are disposed.
[0012]
2 is an exploded perspective view showing the structure below the partition plate 2. FIG. 3 is a plan view of the component storage chamber viewed from the front. FIG. 4 is a plan view of the component storage chamber. It is the top view seen from the room side. In the lower part of the partition plate 2, an opening 13 is cut out in a rectangular shape on the downstream side of the cooling air by the propeller fan 9. A box-shaped protective cover 10 that forms a component storage chamber is screwed into several screw holes 14 provided around the opening 13 and protrudes from the machine chamber 3 side to the heat exchanger chamber 4 side. .
[0013]
A plurality of vent holes 11 are provided below the protruding surface 10 a of the protective cover 10. Since the internal space of the protective cover 10 is open to the machine room 3 side, the machine room 3 and the heat exchanger room 4 communicate with each other through the vent hole 11. A U-shaped shielding plate 12 is provided inside the protective cover 10 to form an air passage 15. The upper surface 12 a of the shielding plate 12 extends in the horizontal direction from slightly above the vent hole 11.
[0014]
The protective cover 10 has a machine chamber 3 side surface and a bottom surface that are open, and the protruding surface 10a is a component that generates heat and is larger than other electrical components in the speed control device of the compressor 6. A coil component 7 such as a reactor or a coil for an active filter is screwed. Accordingly, the coil component 7 can be stored in the outdoor unit in a space-saving manner, and the coil component 7 can be cooled via the protective cover 10 in the heat exchanger chamber 4. Moreover, since the protective cover 10 is open to the compressor 6 side, the connection wiring of the reactor and the inverter device can be performed in the machine room 3, and the wiring is not exposed to rain and wind, thereby extending the life. Can do. Further, the coil component 7 is isolated from the air passage 15.
[0015]
When the propeller fan 9 is driven during operation of the air conditioner, cooling air from the propeller fan 9 that cools the heat exchanger 8 is sent from the vent hole 11 to the machine room 3 side through the vent path 15. Thereby, the coil component 7 and the compressor 6 can be forcedly cooled. Further, since the shielding plate 12 is provided in the lower part of the protective cover 10, it is possible to prevent rainwater that enters the ventilation path 15 through the ventilation holes 11 from getting wet on the coil component 7.
[0016]
The protective cover 10 may be provided on the upstream side of the cooling air by the propeller fan 9. In this case, since the component storage chamber has a negative pressure, the coil component 7 and the compressor 6 can be forcibly cooled by creating an air flow that flows from the vent hole 11 to the heat exchanger chamber 4 through the vent passage 15. . Further, the components provided inside the protective cover 10 are not limited to coil components, and may be any components that generate a relatively large amount of heat as the compressor speed is controlled. The same applies to any component. An effect is obtained. Further, as shown in FIGS. 5 and 6, the component storage chamber may be formed integrally with the partition plate 2 by drawing the partition plate 2.
[0017]
【The invention's effect】
As described above, according to the present invention, since the component housing chamber formed in the partition plate is provided with a vent hole and the shielding plate is provided to isolate the coil component from the air passage communicating the machine chamber and the heat exchanger chamber. The machine room side is forcibly cooled by the cooling air passing through the air passage, so that the temperature rise of the component storage chamber can be prevented more reliably, and the coil components can be protected from rainwater entering the air passage through the air holes.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an outdoor unit of a general air conditioner.
FIG. 2 is an exploded view of a parts storage chamber.
FIG. 3 is a plan view of the component storage chamber as viewed from the front.
FIG. 4 is a plan view of the component storage chamber as viewed from the machine room side.
FIG. 5 shows an example in which the component storage chamber is formed integrally with the partition plate by drawing the partition plate, and is a plan view seen from the front.
FIG. 6 is a plan view of the component storage chamber as viewed from the machine room side.
FIG. 7 is an exploded view of a conventional parts storage chamber.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Case 2 Partition plate 3 Machine room 4 Heat exchanger room 5 Electrical box 6 Compressor 7 Coil parts (parts with relatively high calorific value)
8 Heat exchanger 9 Propeller fan 10 Protective cover 11 Vent hole 12 Shield plate 15 Air passage

Claims (1)

The inside of the housing is partitioned into a machine room and a heat exchanger room by a partition plate, a compressor is installed in the machine room, a heat exchanger and a fan are installed in the heat exchanger room, and a heat exchanger room is installed on the partition plate from the machine room side. Air that contains a reactor or an active filter coil in an inverter device that protrudes to the side and that is open to the machine room side, and that generates heat in accordance with the speed control of the compressor is provided inside the component storage room In the outdoor unit of the harmony machine, the side of the parts storage chamber is closed on the side and the upper surface other than the machine room side, and the reactor in the inverter device or the active filter coil is the heat exchanger in the side of the parts storage chamber . mounted on the projecting surface that projects into the chamber side, a vent hole provided below the projecting exit surface, horizontal slightly above the vent a inside of the equipment housing By providing a shielding plate in the direction, an air passage that communicates the heat exchanger chamber and the machine chamber is formed through the air hole, and a reactor or an active filter coil in the inverter device is formed from the air passage. An outdoor unit of an air conditioner, characterized by isolating.

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