JP2745960B2 - Outdoor 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 an outdoor air conditioner which prevents water spray on electric components and cools the electric components.

[0002]

2. Description of the Related Art Conventionally, as an outdoor air conditioner, there is an outdoor air conditioner in which a casing is partitioned into two stages by a drain pan, a fan and a heat exchanger are arranged in an upper room, and a compressor and an accumulator are arranged in a lower room. .

In the above outdoor air conditioner, since a compressor, an accumulator, a valve, and the like are arranged in a lower chamber of a casing, an electric component box is provided so that wiring between the electric terminals and the electric components can be performed near the compressor and the accumulator. Is arranged in the lower chamber of the casing.

[0004]

However, in the above-mentioned conventional outdoor air conditioner, since the electrical component box is disposed in the lower chamber of the casing, drain water and rainwater from the drain pan to the electrical component box are prevented. In addition, there is a problem that it is difficult to cool the electrical components because the fan is located in the upper compartment and the electrical component box is located in the lower compartment.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an outdoor air conditioner capable of reliably preventing and cooling water spray on electrical components.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a drain pan (1) is provided in a casing (1).
In an outdoor air conditioner in which a fan 25 and a heat exchanger 26 are arranged in the upper chamber 12 and a compressor 33 and accumulators 30a and 30b are arranged in the lower chamber 13, the fan of the upper chamber 12 25 and heat exchanger 2
6, the upper and lower ends of the electrical component box 38, the drain pan 11 and the electrical component box 38 are fixed, and the lower component chamber 13 and the electrical component box 38 communicate with each other. It is characterized in that a hollow column 35 serving as a function is provided so that the fan 25 can suck the air in the lower chamber 13 through the hollow column 35 and the electrical component box 38. According to the invention of claim 2, the inside of the casing 1 is divided into two upper and lower stages by a drain pan 11, and the upper chamber 1
In the outdoor air conditioner in which the fan 25 and the heat exchanger 26 are arranged in the lower chamber 2 and the compressor 33 and the accumulators 30a and 30b are arranged in the lower chamber 13, the fan 25 and the heat exchanger 26 in the upper chamber 12 are arranged above the fan 25 and the heat exchanger 26. Electrical equipment box 38
The upper and lower ends of the hollow column 36 are fixed to the drain pan 11 and the electrical component box 38, and communicate with the lower chamber 13 and the electrical component box 38, through which a harness is inserted to serve as a harness insertion duct. It is characterized by having.

[0007]

According to the first aspect of the present invention, by the rotation of the fan 25, cool air is supplied from the lower chamber 13 to the electrical component box 38 via the hollow column 35, and the electrical components in the electrical component box 38 are effectively provided. Is cooled. Thus, the hollow column 35
It serves as a cool air supply duct for supplying cool air from the lower chamber 13 to the electrical component box 38. According to the second aspect of the present invention,
A harness 40 is inserted into the lower chamber 13 from the electrical component box 38 through the hollow column 36 serving as a harness insertion duct, and is connected to an electric terminal of the compressor 33 and the like in the lower chamber 13. As described above, since the electric terminals such as the compressor 33 in the lower chamber 13 and the electric components in the electric component box 38 in the upper chamber 12 are connected to each other through the harness 40 in the hollow column 36, the wiring work is simplified. Also, the harness 40
Water can be prevented from splashing on the surface. According to the first and second aspects of the present invention, the electrical component box 38 is disposed above the fan 25 and the heat exchanger 26 in the upper chamber 12 in the casing 1 and is located immediately below the top plate of the casing. Because it is not subject to drain water or rain spray, it can be fixed to the upper ends of the hollow columns 35 and 36 from above.
Easy to assemble and maintain.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. 1 is a front view of the outdoor air conditioner, FIG. 2 is a side view, FIG. 3 is a plan view, and FIGS. 4 to 6 are exploded perspective views of the outdoor air conditioner. Casing 1 of this outdoor air conditioner
As shown in FIG. 4, front and left supports 4, front and right supports 6, rear and left supports 5, and rear and right supports 4 are provided at four corners of a bottom frame 3 to which the mounting legs 2 and 2 are fixed on the lower surface. Right pillar 7 (7a, 7b ...
5), the front and rear top covers 8a and 8b and the intermediate top plate 9 are attached to the upper ends of the columns 4 to 7 as shown in FIG. It is fixed. Note that the rear / right support 7 is divided into an upper support 7a and a lower support 7b, and connects the two supports 7a and 7b.

On the left and right portions of the upper end of each of the columns 4 to 7,
As shown in FIG. 5, the left side reinforcing plate 10a and the right side reinforcing plate 10b are respectively fixed, and a rear reinforcing plate 10c is fixed to the rear part of the upper end.

A drain pan 11 is fixed horizontally at an intermediate position in the vertical direction between the columns 4 to 7.
1 divides the inside of the casing 1 into two upper and lower stages.
As shown in FIG. 1, an upper chamber 12 and a lower chamber 13 are formed.

As shown in FIG. 4, a front plate 18 is attached to the front of the lower chamber 13, a left plate 19 and a right plate 20 are attached to the left and right sides, and a rear plate 21 is attached to the rear. ing. The left side plate 19 has an outside air suction port 19.
a is opened.

As shown in FIGS. 1 and 3, accumulators 30a and 30b are arranged on the left side of the lower chamber 13, and on the right side of the lower chamber 13, a rail 31 fixed to the bottom frame 3 is provided. , 31 are mounted on a table 32 supported by the compressor. In the lower chamber 13,
A terminal mounting plate 42, a closing valve mounting plate 43, and an inlet / outlet piping mounting plate 44 are mounted.

As shown in FIG. 5, an outlet grill 14 is attached to the front of the upper chamber 12, and a left grill 15 and a right grill 16 are attached to the left and right sides, respectively.
A suction net 17 is attached to the rear surface.

A propeller fan 25 which is rotated by a motor 24 fixed to a bracket 23 is disposed at a front portion of the upper chamber 12, and a heat exchanger 2 is provided at a rear portion of the upper chamber 12.
6, 26 are arranged. A fan guide 27 is provided around the propeller fan 25, and the heat exchanger 2
6 and 26 are provided with inner and outer partition plates 28a and 28b. A reactor cover 29 is mounted in the upper chamber 12.

On the other hand, a pair of rectangular cylindrical hollow columns 35 and 36 are disposed in the upper chamber 12, and the left and right front portions of the drain pan 11 correspond to the lower openings of the hollow columns 35 and 36, respectively. Openings 11a and 11b are formed. The lower end of the left hollow column 35 has its lower opening aligned with the left opening 11a of the drain pan 11, and is fixed vertically to the upper surface of the drain pan 11 and supported vertically. The lower end of the right hollow column 36 has its lower opening aligned with the right opening 11b of the drain pan 11,
It is fixed to the upper surface of the drain pan 11 and vertically supported.

Above the propeller fan 25 and the heat exchanger 26 disposed in the upper chamber 12, as shown in FIG. 6, an electric component box 38 containing electric components 37 such as transistors and thermistors is disposed. The upper opening of the electrical component box 38 is closed by a lid 39. An air outlet 38a is formed on the right side of the electrical component box 38, and a heat dissipating fin 38b (see FIG. 2) is provided on the rear side.

Openings (not shown) corresponding to the upper openings of the hollow columns 35 and 36 are formed in the left and right front portions of the lower surface of the electrical component box 38, respectively. The upper end of the left hollow column 35 is fixed to the lower surface of the electrical component box 38 with its upper opening aligned with the left opening of the electrical component box 38. The upper end of the hollow column 36 on the right side is fixed to the lower surface of the electrical component box 38 with its upper opening aligned with the right opening of the electrical component box 38. With the hollow columns 35 and 36, the electrical component box 38 is located above the propeller fan 25 and the heat exchanger 26.

The left hollow column 35 serves as a cool air supply duct communicating from the lower chamber 13 to the electrical component box 38, and the right hollow column 36 is connected to the lower chamber 13 from the electrical component box 38. A harness 40 (see FIGS. 1 and 2) is communicated with the horn to serve as a harness insertion duct. That is, the harness 4 connected to the electrical component 37 in the electrical component box 38
0 is inserted into the right hollow column 36 from the right opening on the lower surface of the electrical component box 38 and introduced into the lower chamber 13 through the right opening 11b of the drain pan 11, and the compressor 3
3, connected to connection terminals of accumulators 30a and 30b, valves and the like. As described above, the electric component 37 in the electric component box 38 in the upper chamber 12 and the compressor 3 in the lower chamber 13 are controlled by the harness 40 inserted into the hollow column 36.
Since the electrical terminals such as 3 are connected, the wiring work is simplified.

During the operation of the outdoor air conditioner, the motor 2
4, when the propeller fan 25 rotates, the suction net 17
After being sucked into the upper chamber 12 through the heat exchanger 26, the air is discharged from the outlet grill 14 to the outside. The rotation of the propeller fan 25 causes the upper chamber 12 to become a negative pressure, and this negative pressure is guided to the lower chamber 13 through the electrical component box 38 and the hollow column 35, and the air enters the lower chamber 13 from the air suction port 19 a of the left side plate 19. Is sucked in, and this air flows as cold air from the left opening 11a of the drain pan 11 into the left hollow column 35, enters the electrical component box 38 through the left opening of the electrical component box 38, and removes the electrical component 37. While cooling, it is discharged into the upper chamber 12 from the air outlet 38a of the electrical component box 38. The discharged air is discharged from the outlet grill 14 to the outside together with the air sucked into the upper chamber 12 from the suction net 17.

As described above, the electric component 37 in the electric component box 38 can be effectively cooled by utilizing the hollow column 35 on the left side. Further, the electrical component box 38 is connected to the pair of hollow columns 35, 3
6, the electric component box 38 is disposed above the propeller fan 25 and the heat exchanger 26, and the electric component box 38 is disposed immediately below the top plate 9 of the casing 1. Never. Since the harness 40 is introduced into the lower chamber 13 from the electrical component box 38 by utilizing the inside of the hollow column 36 on the right side, wiring work is simplified. Further, since the electrical component box 38 is fixed to the upper ends of the pair of hollow columns 35 and 36 from above, the assemblability and maintenance are improved.

In the above embodiment, a pair of hollow columns 35,
Although 36 is provided, the number thereof can be increased as necessary.

[0022]

As is apparent from the above description, the outdoor air conditioner according to the first aspect of the present invention has an electric component box disposed above the fan and the heat exchanger in the upper chamber in the casing. Since the product box was fixed to the upper end of the hollow column serving as a cool air supply duct with the lower end fixed to the drain pan,
Cool air can be supplied from the lower chamber to the electrical component box through the hollow column, and the electrical components in the electrical component box can be effectively cooled. Also,
According to the second aspect of the present invention, since the harness is connected to the electric terminal of the compressor or the like in the lower chamber through the hollow column supporting the electrical component box, the wiring work is facilitated, and the wiring can be prevented from being splashed with water. Further, in both the first and second aspects of the invention, the electrical component box is located above the fan and the heat exchanger in the upper chamber, just below the top plate, and does not receive drain water or rain spray. Further, since the electrical component box can be fixed to the upper end of the hollow column from above, the assembling property and the maintenance property are improved.

[Brief description of the drawings]

FIG. 1 is a front view of an outdoor air conditioner according to one embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is an exploded perspective view of components and arranged components of a lower chamber.

FIG. 5 is an exploded perspective view of components and arrangement components on the lower side of the upper chamber.

FIG. 6 is an exploded perspective view of components and arrangement components on the upper side of the upper chamber.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Casing, 11 ... Drain pan, 12 ... Upper chamber, 1
3 lower chamber, 25 propeller fan, 26 heat exchanger,
30a, 30b: accumulator, 33: compressor, 35, 36: hollow column, 37: electrical component, 38: electrical component box, 40: harness.

Claims (2)

(57) [Claims] 1. A drain pan (1) is provided inside a casing (1).
In the upper chamber (12), a fan (25) and a heat exchanger (26) are arranged in the upper chamber (12), and the lower chamber (13)
Compressor (33) and accumulator (30a, 3)
0b), the fan (25) of the upper chamber (12) and the heat exchanger (2).
6), the upper and lower ends of the electrical component box (38), the drain pan (11) and the electrical component box (38) are fixed, and the lower chamber (13) and the electrical component box (38) are fixed. ), And has a hollow column (35) serving as a cool air supply duct, and the fan (25) blows air in the lower chamber (13) into the hollow column (35) and the electrical component box (38). An outdoor air conditioner characterized by being able to suck through. 2. A drain pan (1) inside the casing (1).
In the upper chamber (12), a fan (25) and a heat exchanger (26) are arranged in the upper chamber (12), and the lower chamber (13)
Compressor (33) and accumulator (30a, 3)
0b), the fan (25) of the upper chamber (12) and the heat exchanger (2).
6), the upper and lower ends of the electrical component box (38), the drain pan (11) and the electrical component box (38) are fixed, and the lower chamber (13) and the electrical component box (38) are fixed. An outdoor air conditioner comprising a hollow column (36) through which a harness is inserted and which serves as a harness insertion duct.