JP2809776B2 - Air conditioner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a piping connection device for an outdoor unit in a multi-room air conditioner.

2. Description of the Related Art In recent years, multi-room air conditioners have begun to be widely used in apartment houses, so-called condominiums, etc., and the configuration of this outdoor unit is as shown in FIG. That is, the outdoor unit 1 includes a back panel 2, an outdoor heat exchanger 3 formed in an L shape along the left side surface 2a, a blower 5 corresponding to the front panel 4, and a compressor 6. A valve support 7 is provided on one side surface of the main body 1 so as to be exposed from the main body 1. The valve support 7 has a service port 8 used for charging a refrigerant and the like. Port 9, refrigerant piping for connection to indoor unit (not shown)
A three-way valve 12 consisting of a connection port 11 for connecting 10 is attached. When such a main body 1 is installed on a veranda 13 of an apartment house, for example, as shown in FIG. 5, partition walls 14 adjacent to each other are provided, and one main body 1 and the other main body 1 are sandwiched by the partition walls 14. The main body 1a may be installed, and refrigerant pipes 10, 10a are set up from the main bodies 1, 1a toward the indoor unit.

At this time, between the partition wall 14 and each of the main bodies 1 and 1a, that is, between the back panel 2 serving as a suction port, the space A and B are required because it is necessary to secure a suction air flow rate of 10 cm or more.
Was secured and installed. Also the three-way valve
The construction space for connecting the refrigerant pipes 12 and the refrigerant pipes 10 and 10a was secured and installed on the side where the three-way valve 12 was attached.

In such a conventional configuration, as shown in FIG. 5, the main body 1a installed by the customer on the left side is installed opposite to the main body 1 on the customer side on the right side, and the suction air volume is increased. The three-way valves 12, 12a appear to be exposed because they are installed in the opposite direction so as not to cause trouble. Therefore, the beauty of the exterior is impaired. In addition, as described above, the air for heat exchange is on the left side (2a in FIG. 4).
And the rear panel 2, the main body 1, 1a must have a space A, B between obstacles such as the partition wall 14 of about 10 cm or more, and the three-way valves 12, 12a and the refrigerant pipe. 1
Since the space for the work for connecting the main body 1 and 1a is required to be about 10 cm or more from the three-way valve 12, the installation state of the main bodies 1 and 1a is restricted.

The present invention is intended to solve such problems, and aims at improving the aesthetic appearance of the exterior, relaxing the restrictions on the installation conditions of the outdoor unit main body, and simplifying the pipe connection work.

Means for Solving the Problems To solve this problem, the present invention comprises a main body comprising a front panel, a left side plate provided with a suction port, a right side plate, and a back plate provided with a suction port, The left side plate and the right side plate are further extended from the back plate to the wall surface, and a pipe passage is formed by the space formed by the extended left and right side plates, the back plate and the wall surface, and is formed in the main body. An L-shaped outdoor heat exchanger corresponding to the side plate and the back plate, and a blower, and a three-way valve fixed to a valve support erected at the front in the main body, and a front valve support. A pipe partition plate covering the compressor below, and a through hole formed in the valve cover beside the base attached to the bottom plate, and a refrigerant pipe led out from the back side of the main body is passed through the pipe passage. Retract to the through hole And connected to the standing three-way valve and covered with a valve cover.

Operation With this configuration, the refrigerant pipe passes through the pipe passage between the back plate and the wall surface in the main body, further passes under the bottom plate, reenters the main body through the through hole, passes through the pipe partition plate, and is placed on the valve support. After connecting to the three-way valve, the structure is covered with a valve cover, thereby hiding the refrigerant piping relationship.

Embodiment An embodiment according to the present invention will be described below with reference to FIGS. The outer frame of the main body 20 of the outdoor unit includes a front panel 22 having an air outlet 21, a left side plate 23 serving as one side surface, a right side plate 61, and a rear plate 24 which is stood inward on the rear side with a displacement of about 5 cm. And a valve cover 26 provided on the front panel 22. The left side plate 23 and the rear plate 24 are provided with suction ports 23a, 24a for ventilation respectively. Inside the main body 20, a blower 46, the left side plate 23 and the back plate 24 are provided.
An outdoor heat exchanger 28 formed in an L shape is disposed along the inside of the outside.

In addition, a ventilation passage having an interval of about 5 cm is formed toward the outside of the back plate 24, and a piping passage 27 through which the piping passes is formed. A suction port 23a is formed so as to ventilate the piping passage 27. That is, the outdoor heat exchanger 28 is formed in an L shape, and corresponds to the suction ports 23a and 24a. Also, the main body 20
Inside, a compressor 29 is mounted on a bottom plate 58, and a valve support 30 to which three-way valves 47 and 48 are fixed is formed in a box shape above and above the compressor 29, and stands vertically. ing. A through hole 57 through which the refrigerant pipe 49 passes is provided on the front right side of the bottom plate 58, and a partition plate 60 is provided on the left upper portion of the valve support 30 and the through hole 57 so as to cover the compressor 29. Further, a refrigerant pipe 49 passing beside the base 59 is provided with a valve cover 26.
It is arranged more inside. An electrical box 51 for controlling the main body 20 is provided above the valve support 30, and a terminal block 52 for inputting and outputting signals to and from indoor units from the electrical box is pulled out onto the valve support 30 and attached. The front panel 22 on the front of the valve support 30 is provided with a construction hole 53 for working at the time of piping connection work, and is usually provided with a valve cover.
Covered by 26.

In the above configuration, when the outdoor unit main body 20 is installed, the refrigerant pipe 49 arranged from the room through the wall through hole 55 formed in the wall surface 54 is connected to the rear plate 24, the wall surface 54, and the left and right side plates. The main body 20 is passed through the pipe passage 27 formed between the main body 20 and the side wall 54 of the main body 20 and below the bottom plate 58.
Set up so that it is in close contact with. Thereafter, the valve cover 26 is removed, the refrigerant pipe 49 is bent at the through hole 57, and upward from the inside of the valve cover 26, and passes through the pipe partition plate 60 to the three-way valves 47 and 48 on the valve support 30. Bring and connect. After performing a leak check, an air purge, and the like, they are disposed from the indoor side together with the refrigerant pipe 49.
After the VVF signal cable 56 is connected to the terminal block 52, the valve cover 26 is attached to the front panel 22. When the product is operated in this installation state, the blower 46 rotates and the suction port 23a
The air is further sucked in, and a part of the air flows toward the back plate 24 and flows into the pipe passage 27, the heat exchange in the outdoor heat exchanger 28 is efficiently performed, and the air is blown out from the outlet 21.

In FIG. 3, the right customer 42 and the left customer
Reference numeral 43 denotes an example in which each of them is installed in a back-to-back state, and the left customer 43 installs a refrigerant pipe 49 through a pipe passage.

As described above, in the case where the refrigerant pipe 49 is embedded in a refrigerant pipe such as an apartment house, or when the main body 20 is installed adjacent to the refrigerant pipe, the exposure of the refrigerant pipe 49 is minimized, and the exposure of the three-way valve is eliminated.

Effect of the Invention As is clear from the description of the above embodiment, the present invention provides an upright valve support with a three-way valve attached to the front of the main body, a partition plate covering the compressor below the valve support, and a bottom plate. Next to the attached base, a through hole formed in the valve cover is formed, and a refrigerant pipe coming out from the back side of the main body is drawn into the through hole to the three-way valve of the valve support that stands upright. Since the refrigerant pipes are housed in the valve cover and located below the bottom plate, there is no need to forcibly route around the compressor. There are no more accidents. In addition, since the refrigerant pipe coming out from the back side of the main body is drawn into the through hole through the pipe passage, exposure of the refrigerant pipe is minimized, and the valve cover is hidden from the front, so the exterior The installation condition has been eased and the regulations on installation conditions have been eased, so even when installing in an apartment house, the main unit can be installed so as to be in close contact with the partition wall, and piping connection is possible on the front side of the main unit. Has an effect such as simplification.

[Brief description of the drawings]

FIG. 1 is a plan sectional view showing an installation state of an outdoor unit of an air conditioner according to an embodiment of the present invention, FIGS. 2 and 3 are installation examples of the air conditioner, and FIG. FIG. 5 is a cross-sectional plan view of the outdoor unit, and FIG. 5 is an installation example diagram of the conventional air conditioner. 20 ... body, 22 ... front panel, 23 ... left side plate, 23a,
24a: Suction port, 24: Back plate, 26: Valve cover, 2
7 ... pipe passage, 28 ... outdoor heat exchanger, 30 ... valve support, 46 ... blower, 47, 48 ... three-way valve, 49 ... refrigerant pipe, 54 ... wall surface, 57 ... through hole, 58 …… Bottom plate, 60 ……
Piping partition, 61 ... Right side plate.

Claims (1)

(57) [Claims] 1. A main body comprising a front panel, a left side plate provided with a suction port, a right side plate, and a back plate provided with a suction port, wherein the left side plate and the right side plate further extend from the back plate to a wall surface. A pipe passage is formed by the space formed by the extended left and right side plates, the back plate, and the wall surface, and corresponds to the side plate and the back plate in the main body, and has an L shape. An outdoor heat exchanger, a blower, and a three-way valve fixed to a valve support erected at the front in the main body, a pipe partition plate covering the compressor below the front valve support, and a bottom plate. The three-way valve is provided with a through hole formed in the valve cover beside the attached base, and a refrigerant pipe led out from the back side of the main body is drawn into the through hole through the pipe passage, and is erected. Connect to the valve cover Configuration and air conditioner cover.