JPH05133569A - Outdoor unit for air conditioner - Google Patents

Abstract

PURPOSE:To mount an electric component housing box for an outdoor unit for a separate type air conditioner at the front side of the outdoor unit, and enhance the assembling characteristics and serviceability of the same. CONSTITUTION:Flange holes 2a are provided on both end plates 2 of a heat exchanger 1 whose both sides are bent forward into a U-shaped state in the case where the heat exchanger is viewed from the upper side of an outdoor unit, and an electric component housing box 3 is so arranged as to be mounted on the end plates 2 with screws 4 to be inserted into the flange holes 2a. Thus, the electric component housing box 3 can be mounted at the front of the outdoor unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit of a separate type air conditioner.

[0002]

2. Description of the Related Art In a conventional outdoor unit for an air conditioner, as shown in FIG. 3, the heat exchanger 1 is bent in an "L" shape, so that the electrical equipment storage box 3 is placed in the heat exchanger 1. Since the balance is not good and the fixing strength cannot be ensured only by fixing it to the upper side, the screws 4 are attached from above and side of the air guider 10 attached to the board and the coupling attaching plate 11 forming a part of the outer shell, respectively. It was fixed.

Further, when the electrical component storage box 3 is set at a predetermined position during assembly, it is necessary to fix the electrical component storage box 3 from above the air guider 10 and the coupling mounting plate 11 while aligning the screw hole positions.

When the electronic circuit is inspected at the time of service such as breakdown, the control printed circuit board 8 is installed in the electrical equipment storage box 3 in the direction in which the component surface can be seen. 8 was taken out from the electrical equipment storage box 3 and the circuit was checked with the back side facing.

[0005]

However, in such a method of fixing the electrical component storage box 3, it is very difficult to design by designating the tightening direction of the screw in the front direction.

If the screws are not tightened in one direction, fine adjustment in various directions is required when the electrical component storage box is fitted into the screw holes during assembly. Also, the driver must be inserted from various directions, which greatly hinders the assembly workability.

Further, in terms of serviceability such as breakdown, work from a direction other than the front may be extremely difficult to perform unless the outer working space is secured due to the installed state of the outdoor unit. In particular, when an electronic circuit is inspected or checked when there is an obstacle immediately above the outdoor unit, it is necessary to remove the electrical component storage box, pull it out toward you, and then remove the printed circuit board. Further, at that time, there is no mechanism for holding the removed electrical component storage box and the printed circuit board, which makes the work difficult.

An object of the present invention is to improve the assemblability and serviceability by allowing the mounting direction of the electrical component storage box to be performed only from the front side.

Further, it is another object of the present invention to improve the assemblability by allowing the electrical equipment storage box to be mounted by sliding when mounting the electrical equipment storage box from the front side.

Further, it is an object of the present invention to further improve the assemblability by enabling the electrical component storage box to be slid and mounted while being positioned in the screw holes.

Another object of the present invention is to improve the serviceability by temporarily fixing the removed electrical component storage box without removing the control printed circuit board from the electrical component storage box during service.

[0012]

[Means for Solving the Problems] The technical means for solving the above-mentioned problems (achieving the object) is to provide a heat exchanger which is bent in a "U" shape toward the front side when viewed from above the outdoor unit. Flange holes are provided in both end plates, and an electrical equipment storage box is attached and fixed to the flange holes.

Further, a plane is provided which is in contact with the lower surface of the electric component storage box from the fan motor mounting plate of the lower part of the electric component storage box, and is mounted by sliding from the front side of the electric component storage box.
This allows temporary holding before tightening the screws.

Further, a "U" -shaped notch opened to the front side is provided on either one of the left and right outer box side plates, which is the outer shell, and the lower end face of the notch is sandwiched from the electrical component storage box. By providing the rail, it is possible to reliably position the heat exchanger end plate in the flange hole when the electrical component storage box is slid from the front surface.

The control printed circuit board is installed in the electrical equipment storage box so that the rear surface of the control printed circuit board faces upward with respect to the outdoor unit main body, and both ends are bent at 90 degrees, and one end of the bent metal fitting is attached to the heat exchanger. In addition, it is possible to hold the electric component storage box at the time of servicing by hooking it on the electric component storage box in a state of pulling out the other side and tilting downward.

[0016]

The operation of the above means is as follows.

By installing the electrical equipment storage box on the upper part of the heat exchanger bent into a "U" shape, a box shape is formed by the substrate, the heat exchanger and the electrical equipment storage box, so that the balance is good and the heat Only fixing to the end plate of the exchanger is sufficient in strength. As a result, it is possible to tighten the screws only from the front side.

Further, by forming a flat surface in the lower part of the electrical component storage box in contact with the electrical component storage box, it becomes possible to mount the electrical component storage box on a slide and hold the screw tightening.

Further, by forming the rail for sandwiching the cutout portion provided on the outer casing side plate from the electric component storing box, the electric component storing box can be accurately positioned with respect to the outer casing side plate, and as a result, As a result, it is possible to accurately invite the screw hole of the electrical component storage box to the flange hole of the heat exchanger end plate.

Further, the method of mounting the electrical component storage box from the front side improves serviceability, and further, even when there is an obstacle above the outdoor unit, the electrical component storage box can be pulled out to the front side for inspection work. The serviceability can be further improved because temporary fixing is possible.

[0021]

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

First, referring to FIG. 1, the first, second, and
A third embodiment will be described. In FIG. 1, reference numeral 1 denotes a heat exchanger, both ends of which are bent toward the front of the outdoor unit. A flange hole 2a is provided in the upper part of both end plates 2 of the heat exchanger 1. Reference numeral 3 is an electrical equipment storage box, and the flange holes 2a of the both end plates of the heat exchanger are provided on the left and right upper portions thereof.
Is provided to the heat exchanger end plate 2 and can be attached from the front side.

Reference numeral 5 is a fan motor mounting plate, and a flat surface portion 5a which is in contact with the lower surface of the electrical component storage box 3 is formed on the upper portion of the mounting plate. All slides can be attached.

Reference numeral 6 denotes a side plate on the right side of the outer box, and an upper portion (near the installation of the electrical equipment storage box 3) is provided with a U-shaped cutout portion 7 open to the front side. A rail portion 3b is formed so as to sandwich the lower end surface 7a of the cutout portion 7 from the storage box 3. By slidingly mounting the electrical equipment storage box 3 while aligning the rail portion 3b with the lower end surface 7a of the cutout portion, the screw through holes 3a of the electrical equipment storage box 3 are formed in the flange holes 2a of both end plates of the heat exchanger. It is possible to set it surely.

Next, a fourth embodiment of the present invention will be described with reference to FIG. Here, the same components as those in the above-described embodiments are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 2, in the electrical equipment storage box 3,
The control printed circuit board 8 is installed with the back surface facing upward. 9 is a "U" shaped metal fitting, both ends of which are in the same direction 90
It is bent every time. The electric component storage box 3 is pulled out to the front side of the heat exchanger 1, and the control printed circuit board 8 is tilted downward so as to face the front side, and one of the "U" shaped metal fittings 9 is attached to the heat exchanger. It is possible to hold the electrical component storage box 3 as it is by hooking it on 1 and passing the other through the U-shaped metal fitting hooking hole 3c provided on the electrical component storage box 3. Further, the "U" -shaped metal fitting 9 is not something which projects upwards in a state of being passed through the hook hole 3c. As a result, at the time of service when there is an obstacle in the upper part of the outdoor unit, by using this "U" shaped metal fitting 9, it is possible to perform an inspection service of the control printed circuit board while holding the electrical component storage box.

[0027]

As is apparent from the above-described embodiment, by making it possible to mount the slide from the front surface of the electrical component storage box and to position the screw holes, the assemblability is improved, and the front surface of the electrical equipment storage box can be improved from the front surface when a failure occurs. It also improves serviceability.

Furthermore, it becomes possible to hold the electrical component storage box with the back surface of the printed circuit board facing the front during service,
The operator can inspect the printed circuit board with both hands open from the front.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an inside of an outdoor unit of an air conditioner showing an embodiment of the present invention.

FIG. 2 is a sectional view of the inside of an outdoor unit of an air conditioner showing a fourth embodiment of the present invention.

FIG. 3 is a perspective view of the inside of an outdoor unit of an air conditioner showing a conventional example.

[Explanation of symbols]

 1 heat exchanger 2 heat exchanger end plate 3 electrical equipment storage box 3b rail 3c "U" shaped metal fitting hook hole 4 screw 5 fan motor mounting plate 6 outer box side plate 7 notch 8 control printed circuit board 9 "co" Bracket 10 Air guider 11 Coupling mounting plate

Claims (4)

[Claims] 1. An outdoor unit of an air conditioner comprising a board provided with a compressor and a heat exchanger, an outer box for closing the top surface, opposing both side surfaces, and a front surface, a blower, and control electrical equipment. Provided above the heat exchanger bent toward the front side so as to be U-shaped when viewed from above and above the end plates at both ends of the heat exchanger so that screws can be tightened from the front side of the outdoor unit. Outdoor unit of an air conditioner having an electrical equipment storage box having a flange hole formed in the heat exchanger and screw holes that face the flange holes of the both end plates of the heat exchanger. 2. The outdoor unit according to claim 1, wherein a flat surface in contact with the lower surface of the electrical component storage box is formed by a fan motor mounting plate of a lower part so that the electrical component storage box can be temporarily held when assembled. 3. A notch in a U-shape opening toward the assembly direction side of the electrical equipment storage box is formed on the upper part of either the left or right outer box side plate forming the outer shells on both sides of the outdoor unit. The outdoor unit according to claim 1 or 2, wherein a rail is provided to sandwich a lower end surface of the cutout portion from the electrical component storage box. 4. The control printed circuit board can be installed in an electrical equipment storage box so that the back surface of the control printed circuit board faces upward with respect to the outdoor unit body, and both ends of the "U" -shaped metal fitting are bent. 2. One of them is hooked on the heat exchanger side and the other is hooked on the electrical equipment storage box in a state in which the front part is tilted downward with the front part being pulled out from the installation position, so that it can be held in that state. Air conditioner outdoor unit.