JPH02166329A - Air conditioner power supply board mounting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a power supply board mounting structure for an outdoor unit of an air conditioner that cools or heats a room, which is installed under a balcony or suspended from a wall. It is.

BACKGROUND ART FIGS. 5 and 6 schematically show the structure of a conventional outdoor unit that is hung and installed outdoors.

As shown in Fig. 5, on the outdoor unit main body (101), hanging fitting A (103) is attached to the left side panel (102) of the outer box, and hanging fitting B (105) is attached to the right side of the board (107) with bolts ( (not shown). Said hanging fitting A
Holes (1
06), pass a suspension bolt (not shown) through the washer,
The outdoor unit main body (101) is suspended in a predetermined location using a nut or the like, and the installation is fixed.

In addition, the board (107), front plate (10B), intake air port (
109), air outlet (110), top plate (111), power supply section cover (112), terminal box for connecting internal and external connection wires (1
13), a three-way valve for gas side piping connection (114), a two-way valve for liquid side piping connection (115), etc., constitute the exterior of the outdoor unit.

In addition, as shown in Fig. 6, inside the outdoor unit main body (101) is a compressor (a main component of the refrigeration cycle).
116) and a four-way valve (117) are arranged and connected by a refrigerant pipe (not shown). and a fan motor (118) for operating and controlling the air conditioner;
A four-way valve coil (119), a reactor (120), a power supply box (121), an electronic control device f (122), and a heat sink (123) for discharging heat from electronic components are provided.

Furthermore, a rear partition plate (124
), a central partition plate (125) and a right side plate (104), and a ventilation fan (126) and a heat exchanger (not shown).
was placed in the ventilation circuit.

Problem to be Solved by the Invention However, when the above-mentioned conventional outdoor unit is hung and installed, the power supply box (121) is located at the back of the unit on the opposite side from the intake air port (109) and the outlet air port (110). Because of this, a space required for inspection services was required between the wall of the building where the unit was installed and the back of the outdoor unit, and the state after installation lacked a sense of unity with the building.

As a result, outdoor units of air conditioners installed around buildings have been required to have an outdoor unit configuration that can improve the aesthetic appearance of buildings.

In addition, since the power supply box protrudes from the back of the outdoor unit, the electrical components will be in the shade during service inspection, and in order to make it easier to see details, the power supply box pull-out mechanism and electrical component lead wires necessary to take out the electrical components will be removed. Although consideration was given to making the lead wires longer, the long lead wires required space to store the lead wires.

Furthermore, each part inside the outdoor unit, especially the compressor (11
6), four-way valve (117), fan motor (118), four-way valve coil (119), reactor (120), power supply box (
121), electronic control device (122) and heat sink (123)
) were scattered over an approximately equal range in the longitudinal direction of the outdoor unit.

For this reason, the number of parts is large, making assembly difficult, and product production costs are high.

In view of the above-mentioned conventional problems, the present invention enables the structure of an outdoor unit to be suspended under the balcony of a building so that the back of the product can be brought into close contact with the wall of the building, thereby ensuring a sense of unity between the indoor unit and the building. The purpose is to improve the aesthetic appearance of things.

Another object of the present invention is to facilitate inspection work by eliminating drawer mechanism parts and storage space that are required only when servicing electrical components in a power supply box.

Furthermore, it is an object of the present invention to reduce the number of parts of an outdoor unit, facilitate assembly work, and reduce product cost.

Means for Solving the Problems In order to solve the above problems, the present invention forms a rectangular parallelepiped outer shell with a protruding part of the power supply box located on the back side of the outdoor unit, and mounts a horizontal compressor. An electronic control device is placed on the front side of this pressurizer, a cylindrical capacitor is placed on the top surface, and a heat sink is placed on the top of the front side of the fan motor.

Further, the present invention allows a power supply board to which an electronic control device or the like is attached to be attached or detached from the same front direction by operating a fixing screw.

Furthermore, the present invention places all electrical components inside the box surrounding the compressor, eliminates the need for a power supply cover and power supply box pull-out mechanism, and connects the compressor with the shortest electrical lead wires. It has been made possible to do so.

action The effects of the above means are as follows.

According to the present invention, by combining the horizontal compressor and each electrical component, the interior space of the outdoor unit can be effectively utilized, so the back surface of the outdoor unit can be closely attached to the wall surface of the building.

Further, according to the present invention, each fixing screw of each electrical component can be attached and detached from the same direction from the front side, so that work can be easily performed both during assembly and inspection service.

Furthermore, since the present invention installs each electrical component in the box surrounding the compressor, there is no need for a dedicated power supply box for the electrical components, and the lead wires can be easily routed and shortened, reducing the number of parts. It can be done less.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2 of the accompanying drawings.
This will be explained based on FIGS. 3 and 4.

In FIG. 1, in the outdoor unit body work, a hanging fitting A3 is attached to the left side panel 2 of the outer box, and a hanging fitting B is attached to the right side of the board 7.
5 is fixed with a bolt (not shown). To attach the plurality of hanging bolts provided on the hanging fittings A3 and B5, the hanging bolts (not shown) are passed through the holes 6, and the outdoor unit main body 1 is suspended and installed at a predetermined location using washers, nuts, etc. is fixed.

In addition, the board 7, the left front plate 8, the right front plate 9, the intake air port 9a,
The outer shell of the outdoor unit is formed by the air outlet 9b, the left top plate 10, the right top plate 11, the terminal box 12 for connecting the internal and external connecting wires, the three-way valve 13 for gas side piping connection, the two-way valve 14 for liquid side piping connection, etc. It is arranged to form a rectangular parallelepiped.

Further, as shown in FIG. 2, in the interior 12 of the outdoor unit main body 1, a horizontal compressor 15 and a four-way valve 16 constituting a refrigeration cycle are arranged and connected by a refrigerant pipe (not shown).

In order to operate and control the air conditioner, a fan motor 18 is fixed to the central partition plate 24 with a metal fitting 17. The reactor 19 is fixedly attached to the back side reinforcing plate 7a of the substrate 7. A four-way valve coil 20, a power supply board 21, an electronic control unit 22, and a heat sink 23 for emitting heat from electronic components are provided. Reference numeral 23a denotes a heat dissipation fin provided on the heat dissipation plate 23, which protrudes toward the ventilation circuit and is fixed to the central partition plate 24. These control electrical components are connected to a board 7 surrounding the horizontal compressor 15.
, the outer box left side panel 2, the left top plate 10, the center partition plate 24, and the left front panel 7, which are all surrounded by common exterior parts, so there is no need for a dedicated power supply box for the electrical components.

Further, as shown in FIGS. 3 and 4, the cylindrical capacitor 30 is attached to the capacitor fixing fitting 29 above the horizontal compressor 15.
The metal fitting 3 attached to the left top plate 10 and spot welded to the left top plate 10
The outdoor unit is removably fixed to the power supply board 21 which is attached and fixed to the outdoor unit 1 with screws 32 from the front surface of the outdoor unit. The lower end of the power supply board 21 is removably fixed from the front side of the outdoor unit by screws 32 to the compressor mounting bracket 27 spot-welded to the board 7. Moreover, the electronic control device 22
It is detachably attached to the front power supply board 21 from the front side of the outdoor unit via a plurality of P temporary fixing devices 28.

This type of electrical component installation structure makes effective use of the space around the compressor, and allows the electrical components to be placed close together, making it possible to shorten the lead wires and reduce work during production of the outdoor unit. In addition, service inspection in the market can be done from the front side of the outdoor unit, so the outdoor unit can be installed on the ceiling or wall without any restrictions on serviceability. This makes it possible to emphasize the sense of unity with the building and help improve the aesthetic appearance.

Effects of the Invention As described above, according to the configuration of the present invention, since the exterior parts surrounding the horizontal compressor and the power supply box for protecting the electrical components from wind and rain are common, it is not necessary to use a box specifically for the electrical components. No need to configure. In addition, by attaching and detaching only the left front plate from the front, all electrical components inside the outdoor unit can be easily seen while facing sunlight, making assembly work and inspection services easier.

Furthermore, since the fixing screws of each electrical component mounting bracket are operated in the same direction toward the front, all operations can be performed easily. These electrical components can be attached to and removed from the outdoor unit either singly or in the form of blocks attached to the power supply board, thereby improving the workability of after-sales service.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of an air conditioner according to an embodiment of the present invention, Fig. 2 is a half-sectional view of the electrical equipment inside the outdoor unit, Fig. 3 is a cross-sectional view of the outdoor unit power supply board, and Fig. 4 5 is an exploded perspective view of a power supply board, and FIGS. 5 and 6 are an external perspective view and an internal plan view of a conventional example. 1...Outdoor unit main body, 2...Outer box left side plate, 7...Board, 8...Left front plate,
10... Left top plate, 15... Horizontal compressor, 19... Reactor, 20... Four-way valve coil, 21... Power supply Plate, 22... Electronic control device, 23... Heat sink, 24...
・Central partition plate, 30...Cylindrical capacitor, 32
...Fixing screw. Agent's name Patent attorney Shigetaka Kurino Haka1 person/-'l Yu=ft base salary 2-7) * 'i -fl [3-・-Wj4
L 4- Outer box compensation I plate S-M fitting 8 7- Board δ- Friends n version 10''- Rough top plate folding 1 Cut the center A slope

Claims (2)

[Claims] (1) On the board that constitutes the outdoor unit of the air conditioner,
This is a power supply plate mounting device for an air conditioner equipped with a horizontal compressor and an inverted L-shaped power supply plate fixed to the board in parallel with the longitudinal direction of the horizontal compressor. (2) The power supply board mounting device for an air conditioner as set forth in claim (1), in which the fixing screw directions of the power supply board and each electrical component, and the power supply board and outdoor unit exterior parts are unified in the front side direction.