JP2014159909A - Outdoor unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outdoor unit of an air conditioner capable of improving workability by reducing a height dimension of a housing without changing dimensions of two sheets of electronic substrates.SOLUTION: An outdoor unit of an air conditioner includes a top plate 60 configuring a top surface, and electric component box 80 disposed at a top plate 60 side and having a plurality of sheets of electronic substrates 90, 100, and the electronic substrates 90, 100 are vertically arranged in a space respectively to be in parallel with the top plate 60. Components of high frequency of operation by a worker, are concentrated on the lowest electronic substrate 100, and the surface on which the components are mounted, is disposed while facing downward.

Description

  The present invention relates to an outdoor unit of an air conditioner, and more particularly to an arrangement of an electronic board in the outdoor unit.

In recent years, outdoor units for air conditioners have become products such as reduced housing dimensions due to reduced manufacturing costs, increased air volume to improve operating efficiency, improved heat dissipation performance, and expanded board area due to multiple functions. The demand for is increasing.
On the other hand, in the construction of a refrigerant circuit including a compressor at a low cost, the technological development for reducing the refrigerant circuit volume has not progressed, and thus the restriction on the arrangement space of the electronic board has become larger.
Therefore, it is conceivable to configure a plurality of electronic substrates due to restrictions on the arrangement space.

5 is an external view of an outdoor unit 11 of a conventional air conditioner, FIG. 6 is an external view when the work lid 21 is removed from the outdoor unit 11 of the air conditioner of FIG. 5, and FIG. It is an enlarged view in the electrical component box 81 of the outdoor unit 11 of the air conditioner.
In the conventional outdoor unit 11 of the air conditioner, when the work lid 21 is removed from the outdoor unit 11 shown in FIG. 5, the machine room separated by a partition plate (not shown) is opened as shown in FIG. The refrigerant circuit 71 composed of the compressor 71A and the like, the electronic boards 91 and 101, and the like are accommodated in the room. In addition, as shown in FIG. 7, two electronic boards 91 and 101 are provided in an electrical component box 81, and both electronic boards 91 and 101 are perpendicular to the top plate 61 (or bottom plate 31) of the outdoor unit 11. It is arranged side by side so that

  Further, the two electronic boards are provided in an electrical component box arranged on the top plate side, and one electronic board is arranged so as to be parallel to the top plate (or bottom plate) of the outdoor unit, and the other Some electronic boards are arranged so as to be perpendicular to the bottom surface of the outdoor unit (see Patent Document 1 and Patent Document 2).

  In addition, one electronic board is installed in the electrical component box placed on the top plate side, and is placed with the component mounting surface down so that it is parallel to the top plate (or bottom plate) of the outdoor unit. Has been. In addition, there is an electrical component box having a rotation support portion, and the angle can be changed so that the fins of the heat sink for heat dissipation of the electronic board are aligned with the air flow direction (see Patent Document 3).

Japanese Patent Laid-Open No. 11-63574 (see, for example, FIGS. 1 to 3) JP 2006-194532 A (see, for example, FIGS. 1 and 4) JP 2010-190454 A (see, for example, FIGS. 1 to 4)

  In the outdoor unit 11 of the air conditioner shown in FIGS. 5 and 6, the two electronic boards 91 and 101 are arranged so as to be perpendicular to the top plate 61 (or the bottom plate 31) of the outdoor unit 11. There is a problem that the arrangement space in the height direction of the electronic substrates 91 and 101 is increased, and the height dimension of the housing is also increased.

  Similarly, the outdoor unit of the air conditioner described in Patent Documents 1 and 2 is also arranged so that one electronic substrate is perpendicular to the bottom plate (or top plate) of the outdoor unit. There is a problem that the arrangement space in the height direction is increased, and the height dimension of the housing is also increased.

The outdoor unit of the air conditioner described in Patent Document 3 is arranged so that one electronic board is parallel to the top plate (or bottom plate) of the outdoor unit. The arrangement space is not enlarged, and the height dimension of the housing can be suppressed. In addition, although the heat dissipation performance of the heat sink is improved by changing the angle of the electrical component box, the inclination of the electronic board to which the heat sink is attached is the direction in which the operator can easily see the board surface when the work lid is opened. The reverse direction. Furthermore, when the two electronic boards are arranged in the vertical direction so that the other electronic board is also parallel to the top plate (or bottom plate) of the outdoor unit, the component mounting surface of one electronic board is It will be hidden by the other electronic substrate.
Therefore, when a component that is frequently operated is mounted on an electronic board hidden by the other electronic board, there is a problem that it is difficult to work and workability is poor.

  The present invention has been made to solve the above-described problems, and is an air conditioner that can improve the workability by suppressing the height of the casing without changing the dimensions of a plurality of electronic boards. The purpose is to provide outdoor units.

  An outdoor unit of an air conditioner according to the present invention includes a top plate that forms a top surface, and an electrical component box that is disposed on the top plate side and includes a plurality of electronic substrates, wherein the electronic substrates are respectively Arranged through a space in the vertical direction so as to be parallel to the top plate, the bottom electronic board is mounted with concentrated components that are frequently operated by an operator, and the surface on which the components are mounted It is arranged with down.

  According to the outdoor unit for an air conditioner according to the present invention, the plurality of electronic boards are arranged so as to be parallel to the top plate (or the bottom plate) of the outdoor unit, so the dimensions of the plurality of boards are changed. Therefore, the height of the casing can be suppressed, and components that are frequently operated are mounted on the lowest electronic board that is easy for the operator to operate, so that workability can be improved.

It is the schematic at the time of removing the work lid from the outdoor unit of the air conditioner according to Embodiment 1 of the present invention. It is the schematic at the time of removing the work lid from the outdoor unit of the air conditioner according to Embodiment 2 of the present invention. It is the schematic at the time of removing the working lid from the outdoor unit of the air conditioner concerning Embodiment 3 of this invention. It is an enlarged view in the electrical component box of the outdoor unit of the air conditioner of FIG. It is an external view in the outdoor unit of the conventional air conditioner. It is an external view at the time of removing the working lid from the outdoor unit of the air conditioner of FIG. It is an enlarged view in the electrical component box of the outdoor unit of the air conditioner of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Moreover, in the following drawings, the relationship of the size of each component may be different from the actual one.
Embodiment 1 FIG.
FIG. 1 is a schematic diagram when a work lid is removed from an outdoor unit 10 of an air conditioner according to Embodiment 1 of the present invention.

  The outdoor unit 10 of the air conditioner is attached to a back panel (not shown) that forms a back surface, a side plate (not shown) that forms a left side when viewed from the front, and a working opening 20A. And a cover (not shown) for forming a part of the front surface, a bottom plate 30 for forming the bottom surface, a top plate 60 for forming the top surface, and a front panel 50 for forming the front surface constitute a housing (appearance). Has been. The interior of the outdoor unit 10 is divided into left and right by a partition plate (not shown), and includes an air channel chamber located on the left side when viewed from the front and a machine room located on the right side.

  In the air channel chamber, a heat exchanger (not shown) provided from the side surface to the entire back surface of the air channel chamber, a mounting plate (not shown) provided in the vertical direction of the heat exchanger, and the mounting plate are attached. The blower fan 40 is accommodated.

  When the blower fan 40 is operated, for example, air flows into a suction port (not shown) provided on the side plate and the back panel of the outdoor unit 10, and the air is blown to the front by the blower fan 40. It flows out of the outdoor unit 10 through the outlet 50A. At this time, for example, during cooling operation, the refrigerant in the heat exchanger is cooled by the air that flows in, and the air that flows into the heat exchanger is heated by exchanging heat with the refrigerant.

  In the machine room, a refrigerant circuit 70 (illustrated for simplification) arranged on the bottom plate 30 side, which is constituted by a compressor, refrigerant piping, etc. (not shown), and an electrical component box 80 arranged on the upper side thereof. And is housed. Refrigerant sent from an indoor unit (not shown) is compressed by the compressor and sent to the heat exchanger through the refrigerant pipe. Further, the electrical component box 80 supplies power to each component.

The electrical component box 80 is disposed on the top plate 60 side. In the electrical component box 80, two electronic boards 90 and 100 are arranged so that the electronic component is parallel to the top plate 60 (or the bottom plate 30). Arranged in the vertical direction with the mounted surface (hereinafter referred to as the component mounting surface) facing down, ensuring the insulation distance and the space necessary for routing the wires connected to the electronic boards 90 and 100. ing.
That is, the electronic substrates 90 and 100 are arranged so as to be parallel to each other.
The reason why the two electronic boards 90 and 100 are arranged with the component mounting surfaces facing down is that the operator removes the work lid and puts his hand through the work opening 20A to mount the components on the electronic boards 90 and 100. This is to make it easier to work on the surface.
The upper electronic substrate 90 is mounted with a power electronic circuit and a heat sink for heat dissipation.
The electronic board 100 on the lower side is mounted with a high concentration of components that are frequently operated by the operator, such as operation parts that are frequently installed and serviced, and connection connectors. It is not necessary to operate.

  As described above, by arranging the two electronic substrates 90 and 100 so as to be parallel to the top plate 60 (or the bottom plate 30), the electronic substrate can be obtained even if the size of the two electronic substrates 90 and 100 is increased. Since the arrangement space in the height direction of 90 and 100 does not change, the height dimension of the casing of the outdoor unit 10 can be suppressed. In addition, since components that are frequently operated are mounted on the lower electronic substrate 100 that is easy for an operator to operate, workability can be improved.

In the first embodiment, the electronic substrates 90 and 100 are arranged so as to be parallel to each other, but may not be strictly parallel.
However, the arrangement space of the electronic substrates 90 and 100 can be reduced by arranging them so as to be strictly parallel.

Embodiment 2. FIG.
FIG. 2 is a schematic view when the working lid is removed from the outdoor unit 10 of the air conditioner according to Embodiment 2 of the present invention.
Hereinafter, the second embodiment will be described, but those overlapping with the first embodiment will be omitted.

The electrical component box 80 is disposed on the top plate 60. In the electrical component box 80, two electronic boards 90, 100 are arranged in the vertical direction with the component mounting surface down, and the insulation distance and the electronic board 90 are arranged. The space necessary for routing the wiring connected to the is secured and arranged.
In the second embodiment, the upper electronic substrate 90 is arranged in parallel with the top plate 60 (or the bottom plate 30), and the lower electronic substrate 100 is inclined so that the front side is positioned above the back side. It is provided and arranged.

  By arranging as described above, it becomes easier to see the component mounting surface of the electronic substrate 100 on which the operator removes the work lid and works from the work opening 20A, and the workability can be further improved.

Embodiment 3 FIG.
3 is a schematic diagram when the working lid is removed from the outdoor unit 10 of the air conditioner according to Embodiment 3 of the present invention, and FIG. 4 is an electrical component box of the outdoor unit 10 of the air conditioner of FIG. FIG.
Hereinafter, the third embodiment will be described, but the description overlapping with the first and second embodiments will be omitted.

The electrical component box 80 includes a substrate holding component 120 that holds the lower electronic substrate 100 and a substrate holding component 110 that holds the upper electronic substrate 90, and the rotating shaft portion 130 is provided on the substrate holding component 120. In addition, since the substrate holding component 110 is provided with the bearing component 140, the lower electronic substrate 100 can be rotated around the rotation shaft portion 130.
Then, by removing the fixing portion 150 that fixes the lower electronic substrate 100, the substrate holding component 120 rotates and the lower electronic substrate 100 also rotates. At that time, a stopper 160 for restricting rotation is provided so that the lower electronic substrate 100 does not interfere with the refrigerant circuit 70 disposed thereunder.

As described above, by providing a rotating structure in the electrical component box 80 and rotating the lower electronic board 100 held by the rotating structure, it is possible to move the component mounting surface of the electronic board 100 to be operated to a position where it can be easily seen. Also, it can be moved to a position where it is easy to work.
Further, by rotating the lower electronic substrate 100, the component mounting surface of the upper electronic substrate 90 can be easily seen and work can be facilitated.
From the above, workability can be further improved.

  In the first to third embodiments, two electronic substrates are arranged in the electrical component box 80. However, the present invention is not limited to this, and three or more electronic substrates may be used. In this case, the same effect can be obtained by replacing “lower side” with “bottom” and “upper side” with “other than bottom”.

  10 outdoor unit, 11 (conventional) outdoor unit, 20A working opening, 21 (conventional) working lid, 21A (conventional) working opening, 30 bottom plate, 31 (conventional) bottom plate, 40 blower fan 50 front panel, 50A outlet, 60 top plate, 61 (conventional) top plate, 70 refrigerant circuit (piping), 71 (conventional) refrigerant circuit (piping), 71A (conventional) compressor, 80 electrical components Box, 81 (conventional) electrical component box, 90 electronic substrate (upper side), 91 (conventional) electronic substrate (rear side), 100 electronic substrate (lower side), 101 (conventional) electronic substrate (front side), 110 Substrate holding part (upper side), 120 Substrate holding part (lower side), 130 Rotating shaft part, 140 Bearing part, 150 Fixing part, 160 Stopper.

Claims (4)

A top plate forming the top surface;
An electrical component box disposed on the top plate side and having a plurality of electronic substrates,
The electronic substrate is
They are lined up and down in a vertical direction so that they are parallel to the top plate,
The bottom electronic board is
Parts that are frequently operated by workers are concentrated and mounted.
An outdoor unit of an air conditioner, wherein the outdoor unit of the air conditioner is arranged with a surface on which the component is mounted facing down. A working lid attached to the working opening;
A top plate forming the top surface;
An electrical component box disposed on the top plate side and having a plurality of electronic substrates,
The electronic substrate is
They are lined up and down in the vertical direction,
The electronic board other than the bottom is
Arranged so as to be parallel to the top plate,
The bottom electronic board is
Components that are frequently operated by workers are concentrated and mounted.
An outdoor unit for an air conditioner, wherein the outdoor unit of the air conditioner is provided with an inclination so that a surface on which the components are concentrated and mounted can be easily seen from the work opening by removing the work lid. The electrical component box is
A substrate holding component for holding the lowermost electronic substrate, and a rotating shaft portion;
The board holding component is
The outdoor unit of an air conditioner according to claim 1 or 2, wherein the outdoor unit rotates about the rotating shaft. The electrical component box is
The outdoor unit for an air conditioner according to claim 3, wherein a stopper for restricting rotation of the substrate holding component is provided.

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