JPH06101865A - Indoor unit of separate type air conditioner - Google Patents

Abstract

PURPOSE:To provide an indoor unit of a separate type air conditioner, which facilitates the connection work between the indoor unit and refrigerant pipes easy. CONSTITUTION:A main body 3 of an indoor unit 1 of a separate type air conditioner is connected to an outdoor unit 26 by refrigerant pipes 23 and 25, and provided with a heat exchanger 5 and a fan 7 which has a suction port 37 on the front side of the main body 3 and an air outlet 35 on the heat exchanger 5 side. Connectors 23a and 23b which extends from the heat exchanger 5 and are to be connected to the refrigerant pipes 23 and 25 extending from the outdoor unit 26 are arranged in front of the air fan 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit of a separation type air conditioner, and more particularly to an indoor unit of a floor standing type package type separation type air conditioner.

[0002]

2. Description of the Related Art Generally, in offices and buildings, a floor-standing package type air conditioner installed on the floor as it is is used.

This type of air conditioner comprises a heat exchanger arranged in the main body and a blower for blowing air toward the heat exchanger, and the heat exchanger is arranged above the blower. There is. The refrigerant pipe extending from the heat exchanger is connected to the refrigerant pipe from the outdoor unit.

Conventionally, a connecting end portion of a refrigerant pipe extending from such a heat exchanger and connected to an outdoor unit is disclosed in, for example, Japanese Utility Model Publication No. 63-45635 and Japanese Utility Model Publication No. 57-49063. It extends downward from the heat exchanger, is further arranged below the blower, and is arranged substantially at the bottom of the indoor unit of the separation type air conditioner.

[0005]

However, in the above-mentioned conventional structure, when the connection end of the refrigerant pipe extending from the heat exchanger is connected to the refrigerant pipe from the outdoor unit, the connection end is substantially formed. Since it is located at the bottom of the indoor unit of the separation type air conditioner, it is necessary to work with the head on the floor or lying on the floor, which makes connection work difficult. There is a point.

Therefore, an object of the present invention is to provide an indoor unit of a separation type air conditioner in which connection work with a refrigerant pipe from an outdoor unit is easy.

[0007]

In order to achieve the above object, the present invention provides a heat exchanger and a heat exchanger in a main body of an indoor unit of a separation type air conditioner connected to a refrigerant pipe from an outdoor unit. In an indoor unit of a separation type air conditioner comprising a blower having a suction port on the front side and a discharge port on the heat exchanger side, the indoor unit extends from the heat exchanger and is connected to a refrigerant pipe from the outdoor unit. The connection end is arranged in front of the blower.

[0008]

In the indoor unit of the separation type air conditioner of the present invention, when connecting the connecting end of the refrigerant pipe extending from the heat exchanger of the indoor unit to the refrigerant pipe from the outdoor unit, the worker: When the front panel of the main body is removed, this connecting end is located on the front of the blower and at approximately the same height as the blower, so it is easy for the worker to take a comfortable posture while sitting or sitting down. You can work.

[0009]

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

As shown in FIGS. 1 to 3, the indoor unit 1 of the separation type air conditioner according to the present embodiment mainly comprises a main body 3 and a heat exchanger 5 arranged in the main body 3 in an inclined manner.
And a blower 7 for blowing air toward the heat exchanger 5, and an electrical equipment box 9 accommodating equipment for controlling the operation of the indoor unit. The heat exchanger 5 is connected to the outdoor unit 26. Thus, the refrigerant is circulated.

The main body 3 is provided with a frame plate 11 formed by bending one thin-walled metal plate so as to have a substantially U-shaped cross section.
A front panel 13 (see FIGS. 1 and 2) is attached to one open side surface of the frame plate 11, and a top plate 15 is attached above the frame plate 11 and a bottom plate 17 is attached below the frame plate 11.

The front panel 13 is located below the main body 3 and is provided with an air intake port 14 for sucking air. The front panel 13 is located above the main body 3 and blows out the air after heat exchange. A blowout panel 13b having an outlet 16 is provided, and a central panel 13c is arranged between the suction panel 13a and the blowout panel 13b.

The heat exchanger 5 is obliquely arranged in the air passage 27 defined by the inner panel 13d arranged inside the main body 3 and the front panel 13 described above, and is provided with the air to be blown. The noise of wind noise is reduced. The heat exchanger 5 is arranged in a streak shape from the inner panel 13d to the rear surface thereof, and therefore, the depth W of the main body.
The inclination angle is determined by, but in general, the heat exchanger 5
The smaller the inclination angle is, the smaller the wind noise is. Therefore, the longer the depth W, the lower the wind noise. In this respect, in the present embodiment, the depth of the main body 3 is made wider than in the conventional case, and the inclination of the heat exchanger 5 is increased, so that the wind noise of the wind passing through the heat exchanger 5 can be reduced.

At the lower end of the heat exchanger 5, a drain pan 21 for receiving the dew condensation of the heat exchanger 5 is arranged.

A humidifier 28 is provided on the rear surface of the heat exchanger 5 to add moisture to the air to be blown, so that the room can be humidified as needed during heating.

On the other hand, in the heat exchanger 5, the refrigerant is introduced and heat-exchanges the air sucked into the indoor unit 1. The refrigerant exchanges heat through the refrigerant pipes 23 and 25.
It is supposed to flow into.

Next, the refrigerant pipes 23 and 25 of the heat exchanger will be described. For ease of understanding, the blower 7 will be described before describing the refrigerant pipes 23 and 25 of the heat exchanger.

The blower 7 is a so-called centrifugal blower,
Single-suction case 29 with suction port 37 formed on the front side
And an impeller 31 arranged in the case 29, and the impeller 3
It is composed of an electric motor 33 for driving 1.

The case 29 of the blower 7 is provided with a discharge port 35 for blowing air to the heat exchanger 5 above the case 29, and the air sucked from the suction port 37 is discharged through the discharge port 35 to the heat exchanger 5. It is designed to blow air toward.

The refrigerant pipes 23, 25 extend along the case 29 to the vicinity of the suction port 37 of the blower 7 located below the heat exchanger 5, and the refrigerant pipes 23, 25 are connected to each other. A union 24 connected to the refrigerant pipes 30 and 32 from the outdoor unit 26 is screwed into the end portions 23a and 25a.

The refrigerant tubes 23 and 25 extend downward from the discharge port 35 of the blower 7 on the front surface side (the suction port 37 side) of the case 29, and as shown in FIG. It is arranged on one side of the main body 3, that is, on the right side of the front surface in this embodiment.

In this way, the refrigerant pipes 23 and 25 are connected to the blower 7
In this embodiment, the depth (width) of the main body
Since W is wide enough, the union 24 and the space for connecting work are sufficiently secured.

By arranging the inlet / outlet pipes 23, 25 on one side of the main body 3 in this way, the inside of the main body 3 is made compact, and the refrigerant pipes 23, 25 interfere with inspection of the blower 7, etc. Therefore, the refrigerant pipes 23 and 25 do not extend to the bottom of the main body 3 and stay near the suction port 37 of the blower, so that the refrigerant pipe reaches the bottom. The extension length of the refrigerant tubes 23 and 25 can be shortened as compared with the conventional extension.

Further, the refrigerant pipes 23 and 25 are arranged in pressure contact with the blower 7 on the side of the suction port 37, respectively, and the vibrations of the refrigerant pipes 23 and 25 when the blower 7 is driven are suppressed.

The refrigerant pipe 30 from the outdoor unit 26,
32 is introduced into the main body through a pipe hole 34 formed in the lower portion of the main body 3, and is connected to the above-mentioned refrigerant pipes 23 and 25.

The electrical equipment box 9 controls the operation inside the indoor unit 1, and includes a housing 41 and the housing 41.
Although not shown in detail, a control circuit is arranged on the substrate 43, which is composed of a substrate 43 and a cover 45 housed in the substrate 43. Then, at the time of maintenance of the substrate, the cover 45 is opened to expose the control circuit.

This electrical equipment box 9 is fixed above the suction port 37 of the blower 7, specifically, on the front panel 13 side of the discharge port 35 of the blower 7, and the case 29 of the blower 7 is fixed.
Is located in a space 47 formed between the front panel 13 and the front panel 13. In this way, by disposing the electrical equipment box 9 above the intake port 37 of the blower 7, the worker can sit in the middle waist or in a sitting state at the time of inspecting the board 43 and the like stored in the electrical equipment box 9. Since it is located at eye level, inspection work such as maintenance becomes easy.

Furthermore, by installing the electrical equipment box 9 at a position relatively higher than the floor, it is possible to prevent adverse effects due to dust on the floor.

Next, the operation of the indoor unit of the separation type air conditioner according to this embodiment will be described.

When the indoor unit 1 of the separation type air conditioner is installed, the refrigerant tubes 23 and 25 of the heat exchanger 5 are connected to the refrigerant tubes 30 and 32 of the outdoor unit 26.
The suction panel 13a is removed to expose the connection ends 23a and 25a of the refrigerant pipes 23 and 25. On the other hand, the refrigerant pipes 30, 32 from the outdoor unit 26 are introduced into the main body 3 through the holes 34, and the union 24 causes the tips of the refrigerant pipes 30, 32 to connect to the connection end portions 23a, 25a of the refrigerant pipes 23, 25. Connecting.

In the connecting work, the worker works in a middle waist state or a sitting state with one knee raised. Here, the connection ends 23 a and 25 a of the refrigerant pipes 23 and 25 and the union 24.
Is located at a level almost at the level of the eyes of the worker, so that the worker can work efficiently in an easy state such as the middle waist, and can also work for a long time.

During operation of the indoor unit 1, when the electric motor 33 of the blower 7 is driven, the suction panel 13
Air is sucked from the suction port 37 of the blower via a and is blown upward from the discharge port 35. The blown air passes through the heat exchanger 5, and the heat-exchanged air is blown from the blowout port of the blowout panel 13b.

If necessary, part of the air blown from the blower 7 flows into the humidifier 28 to humidify the air blown into the room.

The present invention is not limited to the above-described embodiments, but can be variously modified without departing from the gist of the present invention.

For example, the connection ends 23a and 25a of the refrigerant pipes
Is not limited to the vicinity of the suction port 37 of the blower 7 as long as it is between the blower and the front panel 13, and may be arranged near the discharge port 35.

[0036]

According to the present invention, since the connecting end portion of the refrigerant pipe is arranged in front of the blower, it is possible to connect the refrigerant pipe of the outdoor unit when installing the indoor unit of the separation type air conditioner. When the worker is in the middle waist or sitting down, the connection end of the refrigerant pipe is located at a level about the eye level of the worker, and the connection work is easy.

Further, the extension length of the refrigerant pipe can be shortened, and the construction of the indoor unit of the separation type air conditioner can be made compact.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an indoor unit of a separation type air conditioner according to an embodiment of the present invention.

FIG. 2 is a front view showing a main part of the indoor unit shown in FIG.

FIG. 3 is a perspective view showing the appearance of the indoor unit shown in FIG.

[Explanation of symbols]

 1 Indoor unit of separation type air conditioner 3 Main body 5 Heat exchanger 7 Blower 13 Front panel 23, 25 Refrigerant pipe 23a, 25a Connection end 37 Intake port

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kazuyoshi Yamaguchi 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A main body of an indoor unit of a separation type air conditioner connected to a refrigerant pipe from an outdoor unit, a heat exchanger,
An indoor unit of a separation type air conditioner comprising a blower having a suction port on the front side of the main body and a discharge port on the heat exchanger side, the refrigerant pipe extending from the heat exchanger and extending from the outdoor unit. The indoor unit of the separation type air conditioner, wherein the connection end connected to the air conditioner is arranged in front of the blower.