JPH11287480A - Separate-type air conditioner and installation equipment for installing such conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit the mounting of an outdoor machine and an indoor machine at substantially the same level thus preventing a lowering of the air conditioning efficiency caused by the difference of height of the outdoor machine and the indoor machine by disposing a refrigerant piping approximately horizontally thus restricting the pressure difference caused by the deadweight of a refrigerant which flows in the refrigerant piping. SOLUTION: A separate-type air conditioner includes an outdoor machine 12 equipped with a compressor which is installed in the outside vicinity of a window and an indoor machine 11 which is installed in the indoor vicinity of the window by means of an installation device 10. These machines are connected by means of a flexible refrigerant piping 15. This refrigerant piping 15 is connected to the outdoor machine 12 and the indoor machine 11 at the time of shipping them from a factory and a refrigerant is filled in an entire refrigeration circuit. At the time of installation, although the flexible refrigerant piping 15 is arranged in an approximately U-shaped piping, eventually the level of the indoor machine 11 and the level of the outdoor machine 12 have substantially become the same so that the pressure fluctuation caused by the deadweight of the refrigerant which flows in the refrigerant piping 15 is cancelled and a constant amount of refrigerant can be supplied to an indoor heat exchanger.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separation type air conditioner in which refrigerant pipes connecting an indoor unit and an outdoor unit are arranged substantially horizontally so that efficient air conditioning can be performed.

[0002]

2. Description of the Related Art An air conditioner generally used today is a separation type air conditioner having an outdoor unit and an indoor unit separated from each other. The outdoor unit includes a compressor, an outdoor heat exchanger, and the like. The indoor unit has an indoor heat exchanger through which the refrigerant from the outdoor unit circulates.

[0003] The installation of such a separation type air conditioner is as follows.
An outdoor unit is installed on a veranda or the like or mounted on an outdoor wall, an indoor unit is mounted on an indoor wall, etc., and a piping hole for passing refrigerant piping is formed in a wall on which the indoor unit is mounted. And the indoor unit are connected by the refrigerant pipe.

Thereafter, the air in the indoor heat exchanger and the refrigerant pipe is released, the valve of the outdoor unit is opened, and the refrigerant filled in the indoor unit is passed over the entire refrigeration circuit to complete the installation operation. .

[0005] Further, even with the same separation type air conditioner,
A configuration has also been proposed in which an outdoor unit is provided with an engaging member, hung on a window frame, and the indoor unit is mounted on a wall or the like on the indoor side. In this case,
The refrigerant pipe is connected to the outdoor unit and the indoor unit through a window, and thereafter, various operations at the time of installation are performed in the same manner as the operation described above.

[0006]

However, in the above configuration, the outdoor unit is mounted on the indoor wall or the like, and the outdoor unit is mounted on the veranda or the outdoor wall. And the difference in height of the mounting position between the outdoor unit and the indoor unit and the length of the refrigerant pipe differ from case to case, and there are the following problems.

That is, in order to obtain a certain air conditioning characteristic such as cooling efficiency, the amount of refrigerant supplied to the indoor heat exchanger (the amount of liquefied refrigerant in cooling operation, and the amount of refrigerant liquefied in heating operation, , A high-temperature gas refrigerant) must be constant, and the temperature of the refrigerant must be constant.

However, when the height difference between the outdoor unit and the indoor unit is different, the indoor unit is usually mounted at a higher position than the outdoor unit, so that the indoor unit moves from the outdoor unit to the indoor unit by the siphon principle or by the weight of the refrigerant. The pressure of the refrigerant pipe through which the refrigerant flows increases, and the pressure of the refrigerant pipe through which the refrigerant flows from the indoor unit to the outdoor unit decreases.

Therefore, even if a fixed amount of refrigerant is supplied to the indoor heat exchanger, the refrigerant is sucked by the pressure of the refrigerant pipe from the indoor unit to the outdoor unit, and passes without sufficient heat exchange in the indoor heat exchanger. And the heat exchange efficiency of the indoor heat exchanger is reduced.

[0010] The decrease in heat exchange efficiency due to such a height difference is as follows.
During the cooling operation, the refrigerant that has exchanged heat in the indoor heat exchanger is condensed and directed toward the outdoor unit, which is remarkable.

On the other hand, even if a fixed amount and a constant temperature of the refrigerant are supplied from the outdoor unit to the outdoor unit, if the refrigerant pipes have different lengths, the refrigerant flows through the refrigerant pipes when flowing through the refrigerant pipes. Therefore, the amount of heat exchange with outside air differs. Therefore,
The amount and temperature of the refrigerant supplied to the indoor heat exchanger differ depending on the refrigerant pipe length.

Of course, it is possible to cover the refrigerant pipe with a heat insulating material and minimize the heat exchange as much as possible, but it is not possible to make it physically zero.

[0013] For this reason, in a model in which the amount of refrigerant supplied from the outdoor unit is small, that is, in a small air conditioner used in an apartment or the like, the influence of the length of the refrigerant pipe becomes remarkable.

Accordingly, an object of the present invention is to provide a separation type air conditioner capable of suppressing a decrease in air conditioning efficiency due to a height difference between the indoor unit and the outdoor unit, and an installation device for installing the same. I do.

[0015]

Means for Solving the Problems In order to solve the above-mentioned problems, the invention according to claim 1 is provided with an outdoor unit having a compressor which is disposed outdoors and has a compressor for compressing a refrigerant, and an indoor unit which is disposed indoors.
In a separation type air conditioner having a refrigerant supplied from a compressor via a refrigerant pipe and an indoor unit having an indoor heat exchanger for exchanging heat with indoor air, the refrigerant pipe is disposed substantially horizontally. It is characterized in that a pressure difference generated by the weight of the refrigerant flowing through the refrigerant pipe is suppressed.

[0016] Even if the refrigerant pipes are undulated and piped, when the pipes are substantially horizontal on average, or when the refrigerant pipes are piped in a “U” shape, the installation positions of the outdoor unit and the indoor unit are substantially the same. The case where the height is the same is included in the term “to make the refrigerant pipe substantially horizontal”.

The invention according to a second aspect is characterized in that the length of the refrigerant pipe is made constant, and the amount of heat exchanged by the refrigerant through the refrigerant pipe is made substantially constant.

According to a third aspect of the present invention, there is provided a window frame fixing means fixed to a window frame and to which the indoor unit according to the first or second aspect is attached, and extending from the indoor side to the outdoor side across the window frame. An outdoor unit mounting means to which the outdoor unit according to claim 1 is mounted, and a window frame fixing means and an outdoor unit so that the outdoor unit and the indoor unit are mounted at substantially the same height and at substantially the same distance. Connecting means for connecting to the machine mounting means.

The invention according to claim 4 is characterized in that the installation unit is installed so that the lower part of the indoor unit is located at substantially the same height as the upper part of the outdoor unit.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a separation type air conditioner using an installation device 10, and FIG. 2 is a rear view of an indoor unit.

The main component of the separation type air conditioner according to the present invention is an outdoor unit 12 disposed near an outdoor window and an indoor unit 11 disposed near an indoor window, and these are connected by a flexible refrigerant pipe 15. Have been.

Then, the outdoor unit 12 is disposed by the installation device 10 by using the window 2 and located near the outdoor window.
Is installed near the window in the room, and the flexible refrigerant pipe 15
Are piped through the window 2.

The outdoor unit 12 has a compressor (not shown) for compressing the refrigerant, and the indoor unit 11 is an indoor heat exchanger (not shown) for exchanging heat between the refrigerant and the indoor air. Pipe storage groove 1 for storing 15
6 etc.

The flexible refrigerant pipe 15 is already connected to the outdoor unit 12 and the indoor unit 11 at the time of shipment from the factory, and the refrigerant is already filled in the entire refrigeration circuit at the time of shipment from the factory. It is possible for one person to install the air conditioner alone, and the pipe length is constant.

Accordingly, the amount of heat depending on the length of the flexible refrigerant pipe 15 in which the refrigerant exchanges heat with the outside air becomes constant, and a stable amount of refrigerant can be supplied to the indoor heat exchanger. Air conditioning characteristics can be obtained.

Next, the procedure for installing the separation type air conditioner will be described in detail with reference to FIGS.

The window 2 is vertically openable and closable as shown in FIG. 1, and a wooden frame is provided around a window frame 3 made of aluminum, resin, or the like. Suffices if it is provided at the lower end (floor side) of, and does not necessarily have to be provided on all sides.

The installation device 10 fixes the installation device 10 to the window frame 3 and a window frame fixing portion 20 to which the indoor unit 11 is attached. The installation device 10 is connected to the window frame fixing portion 20 and traverses the window frame 3 to the indoor side. The arm 30 extends to the outside of the vehicle from outside, and a sliding portion 40 that engages with the arm 30 and slides.

One end of the window frame fixing portion 20 on the indoor side is screwed to the wooden frame, and an engaging pin 32 for engaging with the slide hole 41 of the slide portion 40 is provided on the outdoor end of the arm portion 30. Is provided.

In order to install the separation type air conditioner using the installation apparatus 10 having such a configuration, first, the refrigerant pipe housing groove 16 is installed.
The outdoor unit 12 is fixed to the slide section 40, and the slide section 40 is mounted on the arm section 30 (see FIG. 3).

At this time, since the refrigerant pipe is a flexible pipe that can be bent freely, even a general user unfamiliar with the installation work can easily damage the refrigerant pipe without damaging the indoor unit 12 or the outdoor unit 11. Installation work is now possible.

Then, the slide portion 40 is slid, and the engagement pin 32 provided on the arm portion 30 is engaged with the slide hole 41 provided on the slide portion 40.
Thereby, the slide part 40 is integrated with the arm part 30 via the engagement pin 32.

Thereafter, the slide unit 40 is further slid while being tilted and pushed out of the outdoor unit (see FIG. 4).
2 is set at a predetermined position (see FIG. 5).

After installing the outdoor unit 12 in this manner,
The indoor unit 11 is mounted on the window frame fixing part 20, and the remaining flexible refrigerant pipe 15 is stored in the pipe storage groove 16, and the installation of the air conditioner is completed (see FIG. 1).

As can be seen from FIG. 1, the flexible refrigerant pipe 15 is formed in a substantially "U" shape, but as a result, the height difference between the indoor unit and the outdoor unit is substantially equal. The pressure fluctuation due to the weight of the refrigerant flowing through the air is canceled, and it is possible to suppress a decrease in the air conditioning efficiency.

[0036]

As described above, according to the first aspect of the present invention, the refrigerant pipe is disposed substantially horizontally so as to suppress the pressure difference generated by the weight of the refrigerant flowing through the refrigerant pipe. Therefore, the outdoor unit and the indoor unit can be mounted at substantially the same height, and it is possible to prevent a decrease in air conditioning efficiency caused by a difference in height between these units.

According to the second aspect of the present invention, since the length of the refrigerant pipe is made constant, the amount of heat exchange in the refrigerant pipe can be made substantially constant, and the desired air conditioning characteristics can always be obtained. Becomes possible.

According to the third aspect of the present invention, the window frame fixing means and the outdoor unit mounting means are connected so that the outdoor unit and the indoor unit are mounted at substantially the same height and at substantially the same distance. By installing the separate type air conditioner by means of means, it is possible to suppress the decrease in the air conditioning efficiency caused by the difference in height between the outdoor unit and the indoor unit, and to control the refrigerant piping due to the difference in the length of the refrigerant piping. It is possible to always obtain desired air conditioning characteristics while keeping the heat loss in the air conditioner constant.

According to the fourth aspect of the present invention, since the lower part of the indoor unit is installed at substantially the same height as the upper part of the outdoor unit by the installation device, the air conditioning efficiency caused by these height differences is reduced. The drop can be prevented.

[Brief description of the drawings]

FIG. 1 is a side view in an installed state of a separation type air conditioner according to the present invention.

FIG. 2 is a rear view of the separation type air conditioner.

FIG. 3 is a diagram for explaining an installation procedure of the separation-type air conditioner, and is a diagram when an outdoor unit is mounted on an arm unit.

FIG. 4 is a view for explaining an installation procedure of the separation-type air conditioner, when the slide portion is engaged with an engagement pin.

FIG. 5 is a diagram for explaining an installation procedure of the separation type air conditioner, and is a diagram when the outdoor unit is installed at a predetermined position.

[Explanation of symbols]

 2 window 3 window frame 10 installation device 11 outdoor unit 12 indoor unit 15 flexible refrigerant pipe 20 window frame fixing part 24 window frame side connection hole 30 arm unit 31 outdoor unit side connection hole 40 slide unit 60 outdoor unit fixing unit

Claims (4)

[Claims] 1. An outdoor unit having a compressor disposed outside and having a compressor for compressing a refrigerant, and an indoor heat exchange disposed indoors and exchanging heat between the refrigerant supplied from the compressor and indoor air. In a separate type air conditioner having an indoor unit provided with a heat exchanger and a refrigerant pipe connecting the outdoor unit and the indoor unit, the refrigerant pipe is disposed substantially horizontally and flows through the refrigerant pipe. A separation type air conditioner characterized by suppressing a pressure difference generated by a refrigerant's own weight. 2. The separation type air conditioner installation according to claim 1, wherein the length of the refrigerant pipe is made constant, and the amount of heat exchanged by the refrigerant through the refrigerant pipe is made substantially constant. apparatus. 3. A window frame fixing means fixed to a window frame and to which the indoor unit is mounted, and an outdoor unit mounting means extending across the window frame from the indoor side to the outdoor side to which the outdoor unit is mounted. Connecting means for connecting the window frame fixing means and the outdoor unit mounting means so that the outdoor unit and the indoor unit are mounted at substantially the same height and at substantially the same distance. The installation device for a separation-type air conditioner according to claim 1 or 2, wherein: 4. The installation device according to claim 3, wherein the installation device is installed such that a lower portion of the indoor unit is located at substantially the same height as an upper portion of the outdoor unit.