JPH0468237A - Piping device of air conditioner - Google Patents

Abstract

PURPOSE:To loosen a restriction of mounting condition of an outdoor device and facilitate a piping work in its connection by a method wherein an outer shape of a pipe bending device is provided with a slant so as to cause its height to be decreased from its one end toward the other end, it has a round part capable of bending refrigerant pipe and further a pipe corner formed into a curved shape is provided. CONSTITUTION:A pipe bending device 20 has an installing corner 21 coincided with a corner part 19 at its inner side. It has an inclination or slant in such a way as its height is decreased from one end 22 toward the other end 23 and it is bent toward three-way valves 13a and 13b. It has a pipe corner 24 curved to enable its bending, and then the pipe bending device 20 is installed at the corner part 19. In the event that a refrigerant pipe 12 descends from above, a pipe bending device 20a symmetrical with the pipe bending device 20 is installed at an upper corner 25. Even in the case that the refrigerant pipe 12 is installed from below or above, the pipe can be bent easily by the pipe corners 24 and 24a of the pipe bending devices 20 and 20a and further the pipe bending devices 20 and 20a are provided with slant, so that the refrigerant pipe can be smoothly bent toward the three-way valves 13a and 13b.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a piping system for an outdoor unit of a separate air conditioner.

BACKGROUND OF THE INVENTION In recent years, there has been a trend in separated air conditioners from low horizontal ones to vertical ones in order to save space and improve Efsteria.

Conventionally, when installing refrigerant piping with emphasis on Efsteria, the configuration of the refrigerant piping inside the outdoor unit was as shown in Figures 3 and 4.
The configuration was as shown in the figure. In other words, the main body 1 of the outdoor unit
A compressor room 15 that covers the compressor 9 is provided at the lower right side of the housing, and an electrical equipment box 10 is provided above. a three-way valve 13a that connects the pipe 12 with the main body 1 of the outdoor unit;
The valve support 14 that fixes the valve support 13b is located in the space 11.
It is constructed in a sloping manner with internal bonds. Furthermore, a valve cover 5 for covering the right side of the valve support 14 is slidably attached to the outside of the valve support 14, and is attached to the compressor 9 and the fan motor (not shown).
The hook provided on the partition plate 8 that partitions the two is hole 3, the hook on the valve cover 5 is hole 4, and the hook on the lower right side plate 15a is hole 2.
The claws 7 of the front panel 6 that covers the compressor 9, the three-way valves 13a and 13b, and the electrical equipment box 10 are inserted into the housing and fixed with screws 16.

When the outdoor unit 1 having such a configuration is installed close to the wall surface 17, the refrigerant pipe 12 coming out from the through hole 18 of the wall surface 17 is bent upward from the through hole 18 along the wall surface 17, and the space is closed. The rear lower side of the section 11, that is, the compressor 15
After bending the upper corner part 19 at a right angle in front of the space part 11, the refrigerant pipe 12 is cut to a length that reaches the three-way valves 13a and 13b, and its tip is flared to form the three-way valve 13a. , 13b. After that, the valve cover 5 was inserted and the front panel 6 was fixed with screws 16.

Problems to be Solved by the Invention In such a conventional configuration, as shown in FIG. 4, the refrigerant pipe 12. When bending toward the front side at the corner portion 19, that is, toward the space 11, the refrigerant pipe 12 hits the electrical box 10, becomes an obstacle, does not bend properly, and finally the refrigerant pipe 1
2 largely protrudes toward the wall surface 17, it is necessary to provide a large distance between the outdoor unit 1 and the wall surface 17, and the installation condition is determined to be II+. Furthermore, since the refrigerant pipe 12 is forced to bend under construction conditions such as bending against such a corner portion 19, there are problems such as buckling.

The present invention is intended to solve these problems, and aims to ease regulations on installation conditions for outdoor units and simplify pipe connection work.

Means for Solving the Problems In order to solve the problems, the present invention provides a bent pipe having a space in the main body for arranging the refrigerant pipe and an installation corner on the inside that matches the corner of this space. The outer shape of the pipe bending pipe is sloped so that the height becomes lower from one end to the other end, and has a roundness that allows the refrigerant pipe to be bent, and is formed in a curved shape. A piping corner section is provided.

With this configuration, when the refrigerant pipe is arranged toward the space, the corner of the pipe bending tool is aligned with the installation corner, and the pipe bending tool attached to the corner of the space allows It is bent along the space, and the bending direction is accurately bent toward the three-way valve for connection.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. Note that the same reference numerals as explained in the conventional example indicate the same parts, and the explanation will be omitted, and the gist of the present invention lies in the piping device in the space 11 in which the refrigerant piping is arranged. That is, the pipe bending tool 20 is attached to the rear corner portion 19 of the compressor room 15.
This pipe bending tool 20 is made of, for example, foamed polystyrene, and has an installation corner portion 21 formed on the inside to match the corner portion 19, and its external shape has a height increasing from one end 22 to the other end 23. so that it is lowered and bent toward the three-way valves 13a and 13b,
It has a slope and has a roundness that allows the pipe to be bent.
A pipe corner portion 24 formed in a curved shape is provided, and a pipe bending tool 20 is attached to the corner portion 19. Also, on the electrical equipment box 10 side, depending on the installation conditions, the refrigerant pipe 12 may come down from above, so in this case, the pipe bending tool 20a, which has a shape symmetrical to the pipe bending tool 20, is moved upward. corner part 25;
A piping corner portion 24a with a rounded outer shape is formed so that the refrigerant piping 12 coming down from above can be easily bent toward the three-way valves 13a and 13b. The angle of inclination is formed from the end 22a to the other end !23a.

In the above configuration, the pipe bending tool 20.
20a, for example, when the outdoor unit 1 is installed close to the wall surface 17, the refrigerant pipe 12 coming out from the through hole 18 of the wall surface 17 is raised upward along the wall surface 17,
This refrigerant piping is installed by applying the refrigerant piping 12 perpendicularly to the piping corner portion 24 of the piping bending tool 20 attached to the corner portion 19 of the compressor chamber 15 of the space portion 11 when viewed from the front. 24, while avoiding the electrical box 10, bend the three-way valve 13a toward you.
, 13b, the refrigerant pipe is cut, flared, and connected.

In addition, if the refrigerant pipe 12 comes from above the outdoor unit 1,
The pipe bending tool 20a is mounted so that the installation corner part 21a matches the rear upper corner part 25 of the space part 11, and the refrigerant pipe 12 is bent at the same time.

In this way, whether the refrigerant pipe 12 is installed from below or from above, the refrigerant pipe can be easily bent by the pipe bending tool 20 and the pipe corner portion 24 and upper pipe corner portion 24a of the pipe bending tool 20a. Moreover, since each pipe bending tool 20.degree. 20a is inclined, the direction in which the refrigerant pipe is bent is the same as that of the three-way valves 13a, 13.
It can be bent smoothly in the direction b.

Effects of the Invention As is clear from the description of the above embodiments, the present invention includes a pipe bending tool attached to the vertical corner of a space in the main body through which the refrigerant pipe passes, and the outer shape of the pipe bending tool is changed to one side. Since the structure is such that the refrigerant piping is bent from one side to the other with an inclination, the refrigerant piping can be bent along the piping corner from above or below, and the refrigerant piping can be bent smoothly without hitting the electrical box. It can be easily bent. In addition, the distance between the wall and the main unit is the minimum space,
Since it can be bent by hand, it facilitates pipe connection work and shortens construction time. Furthermore, if the compressor or electrical box has a shape like a pipe bending tool, the configuration will become complicated and the cost will increase. However, by making the pipe bending tool from inexpensive Styrofoam, etc., it is possible to create a very inexpensive structure. This also has the effect of preventing buckling of the refrigerant piping.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a piping system of an air conditioner according to an embodiment of the present invention, FIG. 2 is a front view of a space in the piping system of the air conditioner, and FIG. 3 is a perspective view of a conventional air conditioner. FIG. 4 is a front view of the piping device of the air conditioner. 1...Main body, 11...Space part, 12.
... Refrigerant piping, 19.25 ... Corner part, 20 ... Piping bending tool, 21.21a ...
...Installation corner part, 22° 22a... One end, 23.23g... Other end, 24° 24a.
... Piping corner section. Name of agent: Patent attorney Shigetaka Awano and 1 other person - *Salary 1 - Tsunema Kizuna 12 - Ichibe Pass Piping 2F, 2 to 1 - + τ 4-tou part 2t Kuta - - On the other hand, R filling 2 J Rija - --I Ding'tl 994.2 11 Otsufko--Kichiya Diagram I

Claims (1)

[Claims] The main body includes a space in which a refrigerant pipe is arranged, and a pipe bending tool that has an installation corner part on the inside that matches the corner of this space, and the external shape of the pipe bending tool extends from one end to the other end. A piping device for an air conditioner, which is provided with an inclination so that the height is reduced, and a piping corner portion that is rounded to allow bending of the refrigerant piping and is formed in a curved shape.