JP2919717B2 - Outdoor unit of air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing structure for an electrical box disposed inside an outer case.

[0002]

2. Description of the Related Art A separation type air conditioner has a structure in which an indoor unit and an outdoor unit are paired, and both units are connected by a refrigerant pipe.

[0003] The outdoor unit of such an air conditioner is divided by a partition plate into a heat exchange room in which a heat exchanger, a fan and the like are arranged, and a machine room in which a compressor and the like are arranged. I have.

In this type, a horizontally long electrical box is provided in an upper space extending over both the machine room and the heat exchange room. When the electrical box is provided in this manner, the electrical box is provided in the dead space in the outer case, and therefore, there is an advantage that the outdoor unit can be downsized.

[0005]

By the way, usually, a fan is provided in the heat exchange chamber, and this fan jumps up, for example, rainwater, so that the fan is installed in the above-mentioned electrical box located above the heat exchange chamber. May have water infiltration. Conventionally, in order to solve this, a cover is provided in the electrical component box to prevent water from entering. In addition, a seal member is provided between the lid and the outer case to prevent water from entering the heat exchange chamber into the machine room. However, according to this, there is a problem that the number of parts increases, and the manufacturing cost increases.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a structure capable of securely sealing an electrical box with a simple structure.

[0007]

In order to achieve the above object, the present invention provides an outdoor unit of an air conditioner having a horizontally long electrical box in an upper space spanning both a machine room and a heat exchange room. , The electrical box has an upper opening, and a seal portion is provided between a peripheral edge of the opening of the electrical box and an outer case of the outdoor unit.

[0008]

[0009]

The outdoor unit of the air conditioner according to the present invention has an opening above the electrical box and a seal between the peripheral edge of the opening of the electrical box and the outer case of the outdoor unit. Seals the inside of the electrical box, thereby preventing water from entering the electrical box. Further, water that is going to enter the machine room from the heat exchange room may be sealed by the above-mentioned seal portion, so that intrusion is prevented.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the outdoor unit 2 of the air conditioner according to the present embodiment includes a heat exchange chamber 3 and a machine room 5, and these rooms are provided with partition plates. 9 are defined.

The exterior case 7 of the outdoor unit 2 includes a rear panel 7a, a front panel 7b, and a bottom plate 7c which are formed in a substantially U-shape. After assembling, a cap-shaped top plate 100 is fitted thereon.

A heat exchanger 11 and a fan 13 for blowing air to the heat exchanger 11 are arranged in the heat exchange chamber 3. The heat exchanger 11 is arranged along the side and back of the outer case 7. It is formed in a substantially L shape so as to extend.

The blower fan 13 is arranged on the front surface of the heat exchanger 11, and is driven by being connected to a drive shaft of a motor 15.

A large number of air suction holes 17 are formed in the rear panel 7a, and air outlets 19 are formed in the front panel 7b.
Is formed, and the wind that has been sucked in from the rear side and exchanged heat is blown out from the front side. In FIG. 2, the motor 15 is supported by a support plate 21.

In the machine room 5, a compressor 23 fixed to the bottom plate 7c of the outer case 7 is accommodated.

A partition plate 9 for partitioning the machine room 5 from the heat exchange room 3 has a rear surface 9b bent toward the machine room 5 side with respect to a front surface 9a, and a cover 28 for covering a reactor 27 is provided below. Is attached.

In the machine room 5, an electric box 25 in which electric members 31 and 33 for controlling driving in the machine room are disposed is disposed above the machine room 5. The electrical box 25 extends to the heat exchange chamber 3 side across the partition plate 9, and a radiating fin 29 is installed downward at the upper part of the heat exchange chamber 3 side.

[0019] The electrical component box 25, the other electrical members such as a capacitor 31, a printed circuit board 33, as shown in FIG. 3, originating
Thermal electronic component hybrid IC 34, diode 35
Are stored. Since these generate a large amount of heat, they are fixed to the radiation fins 29.

In the outdoor unit having such a configuration,
According to this embodiment, the electrical component box 25 has a case 37 whose upper surface is open, and a seal portion 200 is provided on the periphery of the opening at the upper end surface of the case 37 as shown in FIG.

As shown in FIG.
In the meantime, the electrical box 25 is located in the heat exchange chamber 3 around the opening.
Two weirs 200a, 200b (FIG. 4) provided in a portion where
And two weirs, part A and part B in FIG. 3, are notched. A seal member 300 (FIG. 4) such as a sponge packing is fitted into the seal portion 200, and the seal member 300 is used to assemble the top plate 1 when assembling the outer case 7.
The inside of the electrical box 25 is sealed by being pressed against the inner surface of the electronic component box 00. Also, a portion of the electrical box 25 located in the machine room 5 has a seal.
There is no air gap between the air inside the electrical box 25 and the inside of the machine room 5
Qi can be circulated freely.

As shown in FIG. 4, the two weirs of the seal portion are formed such that the outside 200a is low and the inside 200b is high, and when rainwater or the like enters through the seal member 300 beyond the outside weir 200a, At least the inside of the electrical box 25 is designed so that rainwater does not enter beyond the inner weir 200b.

Further, as described above, the two parts A and B
Since the weirs are cut off at some places, the rainwater that has entered between the weirs 200a and 200b is discharged to the outside of the electrical box 25 through the cutouts (parts A and B).

In short, according to this embodiment, it is not necessary to provide a cover in the electrical component box 25 as in the prior art, and the top plate 100 of the outer case 7 serves as the cover, and the seal portion 200 is Since water that intrudes into the electrical box 25 is reliably prevented, the electrical components and the like can be protected. Further, the seal part 200 also serves as a seal part between the heat exchange chamber 3 and the machine chamber 3.

The sealing member 300 is not necessarily
It is not necessary to fit between a and 200b. A sponge-like packing is usually attached to the inner surface of the top plate 100 to prevent condensation. Therefore, for example, it is also possible to share the packing and omit the seal member 300.

According to this, since the sealing member 300 can be shared, the cost is reduced and the workability is improved. At this time, the weirs 200a and 200b on the upper end surface of the case 37 can be omitted.

As shown in FIG. 5, the case 37 of the electrical box 25 projects laterally, and the projecting portion 37a
As shown in FIG. 3, it extends around the case 37 and scrapes rainwater or the like that is jumped up by the fan 13.

That is, the overhanging portion 37a guards rainwater or the like from directly reaching the seal portion 200.

Although the present invention has been described based on one embodiment, the present invention is not limited to this. For example, the weirs 200a and 200b of the seal portion 200 may be provided in any number of layers. If the weirs are multiplexed and the packing is used in combination, the blocking rate of water intrusion is increased.

As is apparent from the above description, according to the present invention, a horizontally long electrical component box is provided in an upper space spanning both a heat exchange chamber directly exposed to the outside air and a machine room surrounded by the outside air and having a compressor and the like. In the indoor unit of the air conditioner provided with, the electrical box is opened upward, and a seal portion is provided in a portion located in the heat exchange chamber between the peripheral edge of the opening of the electrical box and the outer case of the outdoor unit. Since the heat-dissipating electronic components are arranged in the portion of the electrical box located in the heat exchange chamber, the heat-dissipating electronic components can be arranged in the portion of the electrical box located in the heat exchange chamber, and this electronic component is directly exposed to the outside air. Cooling becomes possible, and intrusion of water and the like from outside air is prevented by the seal portion. At the same time, the heat trapped in the electrical box is circulated into the machine room through the position where the electrical box has no seal, and the temperature inside the electrical box can be suppressed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state where a front case of an outdoor unit according to an embodiment of the present invention is removed, and is a view schematically showing a configuration of the outdoor unit.

FIG. 2 is an exploded perspective view of the outdoor unit shown in FIG.

FIG. 3 is a plan view of the outdoor unit shown in FIG.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is a sectional view taken along line VV of FIG. 3;

[Explanation of symbols]

 2 Indoor unit 3 Heat exchange room 5 Machine room 7 Outer case 25 Electrical box 37 Case 100 Top plate 200 Sealing section 200a, 200b Weir 300 Sealing member

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kazunobu Hosogai 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (56) References JP-A-58-480 (JP, A) 58-129478 (JP, U) JP-A-2-54998 (JP, U) JP-A-62-171831 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F24F 5/00

Claims (1)

(57) [Claims] 1. A heat exchange chamber directly exposed to the outside air and the outside air
In the indoor unit of the air conditioner in the upper space spanning both with an oblong electric box of the machine room having al enclosed compressor and the like, the electrical component box is open upward, the opening periphery of the electrical equipment box Heat exchange room between the exterior case of the outdoor unit
A seal portion is provided in a portion located at
Heat dissipating electronic components are placed in the part of the box located in the heat exchange chamber
Outdoor unit of an air conditioner which is characterized in that cause.