JP2001324173A - Piping structure for separate type air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping structure for a separate type air conditioner capable of assuring a sufficient aeration area with a compact constitution. SOLUTION: A piping structure for a separate type air conditioner 10 relating to the present invention includes refrigerant pipes 21, 22 for circulating refrigerant between an indoor unit 12 and an outdoor unit 14 of the separate type air conditioner 10, and a ventilation duct 24 for ventilating indoor air. The ventilation duct 24 includes at least one discharging duct 26 for use in discharging air from the indoor unit 12 to the outdoor area through a wall W partitioning between the indoor area and the outdoor area. The refrigerant pipes 21, 22 are arranged in the discharging duct 26 at the part inserted into a wall W. The refrigerant pipes 21, 22 are arranged in the discharging duct 26 under a state in which they are not covered by a thermal insulating material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a piping structure of a separate type air conditioner having a ventilation function.

[0002]

2. Description of the Related Art Separate air conditioners, in which an indoor unit and an outdoor unit are separated from each other, have been known as home air conditioners and the like. In recent years, functions have been diversified, and development of a separate type air conditioner capable of ventilation, humidification, and the like has been actively performed. Here, in the case of a separate type air conditioner having a ventilation function, there is a demand to provide a ventilation duct having a low ventilation resistance without impairing the appearance of a building to which the separate type air conditioner is attached. In response to such demands, it is conceivable that a single ventilation duct may be used for both intake and exhaust.However, in a recent highly airtight building, the internal pressure in the room increases during intake, and the internal pressure decreases when exhausting. Problems arise. Further, as a ventilation duct structure of a separate type air conditioner provided with a plurality of ventilation ducts in a compact configuration, Japanese Patent Laid-Open No. 10-193 is disclosed.
No. 03 is known.

[0003] The separate type air conditioner described in the above publication includes an indoor unit, an outdoor unit, a refrigerant pipe and electric wiring for connecting each unit, and the refrigerant pipe and electric wiring are fitted to a wall. It is inserted through the mounted sleeve. And, as the ventilation duct structure, the ventilation duct is divided into a plurality of small-diameter ventilation ducts, and each of the divided ventilation ducts is inserted into the gap of the sleeve generated after the refrigerant pipe or the electric wiring is inserted. ing.

[0004]

However, the above ventilation duct structure has the following problems. That is, since the refrigerant pipe is covered with the heat insulating material, the space remaining in the sleeve after the refrigerant pipe is inserted is small. For this reason, if the diameter of the sleeve is not increased, it is not possible to secure a sufficient space for inserting the ventilation duct, and the ventilation area in the ventilation duct is reduced, so that the ventilation resistance in the ventilation duct is increased. I will.

Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a piping structure of a separate type air conditioner capable of securing a sufficient ventilation area with a compact configuration.

[0006]

SUMMARY OF THE INVENTION A piping structure of a separate type air conditioner according to the present invention comprises a refrigerant piping for circulating a refrigerant between an indoor unit and an outdoor unit of the separate type air conditioner, and ventilation of indoor air. And a ventilation duct including at least one exhaust duct for exhausting air from the indoor unit to the outside of the room through a wall that separates the room from the outside, and the refrigerant pipe has at least a wall. The portion inserted into the portion is disposed inside the exhaust duct.

By arranging the refrigerant pipe in the exhaust duct as described above, a heat insulating material covering the refrigerant pipe to prevent dew condensation is not required. In other words, the interior of the exhaust duct is dehumidified during cooling, and the temperature of the refrigerant pipe becomes high during heating. Therefore, dew condensation hardly occurs on the refrigerant pipe without coating with the heat insulating material. As a result, the space occupied by the refrigerant pipe can be saved, and the ventilation area of the ventilation duct can be secured to reduce the ventilation resistance.

[0008] In the pipe structure of the separate type air conditioner, the refrigerant pipe provided in the exhaust duct may be a bare pipe.

As described above, by using a bare pipe that does not cover anything as a refrigerant pipe disposed in the exhaust duct,
The ventilation area in the exhaust duct can be increased.

[0010] In the piping structure of the separate type air conditioner, the ventilation duct may include at least one intake duct for taking in air from outside to the indoor unit.

[0011] By having the air intake duct as described above, it is possible to exhaust indoor air and to inhale outdoor air, so that it is possible to adjust the internal pressure of the room and perform ventilation.

In the piping structure of the separate type air conditioner, a sleeve through which a ventilation duct is inserted is fitted to a wall portion, and at least a part of an outer periphery of the ventilation duct inserted through the sleeve is formed at least partially. It may be characterized in that it has a shape along the inner circumference.

[0013] By forming at least a part of the outer periphery of the ventilation duct along the sleeve in this way, the ventilation area in the ventilation duct can be increased.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the piping structure of a separate type air conditioner according to the present invention will be described below in detail with reference to the drawings. In the description of the drawings, the same elements will be denoted by the same reference symbols, without redundant description.

FIG. 1 is a view showing a separate type air conditioner 10 having the piping structure of the present embodiment. The separate type air conditioner 10 has an indoor unit 12 disposed indoors and an outdoor unit 14 disposed outdoors through a wall W that separates the indoor and the outdoor. In the wall portion W, a through-hole penetrating the room and the outside is formed, and a sleeve 16 is fitted in the through-hole. The indoor unit 12 and the outdoor unit 14 are connected by a high-pressure refrigerant pipe 21, a low-pressure refrigerant pipe 22, and an electric wiring 23. Here, the high-pressure refrigerant pipe 21, the low-pressure refrigerant pipe 22, and the electric wiring 23 are inserted through the sleeve 16. Also,
The indoor unit 12 includes an intake duct 25 and an exhaust duct 2.
6 (hereinafter, these are collectively referred to as "ventilation duct 24"). The ventilation duct 24 is inserted into the sleeve 16 fitted on the wall W, and connects the indoor unit 12 and the outdoor. Further, a drain pipe 27 for discharging moisture is connected to the indoor unit 12.
The drain pipe 27 is guided outside through the sleeve 16 and extends to the vicinity of the outdoor unit 14.

Next, a piping structure which is a feature of the present embodiment will be described with reference to FIG. FIG. 2 is a sectional view taken along the line II-II of the sleeve 16 in FIG. FIG.
As shown in FIG. 1, the piping structure of the present embodiment has an intake duct 25, an exhaust duct 26, and a sleeve 16 fitted on the wall W.
The electric wiring 23 and the drain pipe 27 are inserted, and the high-pressure refrigerant pipe 21 and the low-pressure refrigerant pipe 22 are inserted inside the exhaust duct 26. Here, the high-pressure refrigerant pipe 21 and the low-pressure refrigerant pipe 22 are inserted into the exhaust duct 26 in a bare pipe state that does not cover the heat insulating material.

The piping structure between the indoor unit 12 and the sleeve 16 also has the refrigerant piping 2 inside the exhaust duct 26 similarly to the piping structure in the sleeve 16 shown in FIG.
1 and 22 are provided. Since there is no exhaust duct 26 between the sleeve 16 and the outdoor unit 14, the refrigerant pipes 21 and 22 are covered with a heat insulating material.

The separate type air conditioner 10 of the present embodiment.
In the piping structure of, the high-pressure refrigerant pipe 21 and the low-pressure refrigerant pipe 22 are inserted into the exhaust duct 26. Accordingly, it is not necessary to cover the refrigerant pipes 21 and 22 with a heat insulating material.
22 can be arranged in a bare tube. That is,
During cooling, the interior of the exhaust duct 26 is in a dehumidified state, and during heating, the refrigerant pipes 21 and 22 have a high temperature, so that dew condensation hardly occurs even without heat insulating material. Thus, each refrigerant pipe 21,
22 is not covered with a heat insulating material.
The area occupied by the sleeves 1 and 22 in the sleeve 16 can be reduced, and the ventilation duct 24 can be inserted into the same sleeve 16 as the sleeve 16 into which the refrigerant pipes 21 and 22 are inserted. Further, since each of the refrigerant pipes 21 and 22 disposed inside the exhaust duct 26 is a bare pipe, a sufficient ventilation area of the exhaust duct 26 can be secured.

The above points will be specifically described with numerical values. In a normal home air conditioner, a high-pressure refrigerant pipe 2
1 has a diameter of about 6 mm, and the low-pressure refrigerant pipe 22 has a diameter of about 9 mm. When these are coated with a heat insulating material for preventing dew condensation, the diameters thereof become 20 mm and 23 mm, respectively. More than double the thickness. Since the diameter of the sleeve 16 for a home air conditioner is about 65 to 75 mm, when a refrigerant pipe covered with a heat insulating material is inserted into the sleeve 16, the space for inserting the ventilation duct 24 is greatly reduced.

The separate type air conditioner 10 of the present embodiment.
According to this piping structure, since each of the refrigerant pipes 21 and 22 can be used as a bare pipe, the ventilation area of the ventilation duct 24 can be secured with a compact configuration without deteriorating the appearance of the building.

Next, a description will be given of a piping structure according to a second embodiment of the present invention. The separate type air conditioner having the piping structure of the second embodiment has the same basic configuration as the separate type air conditioner 10 of the first embodiment. FIG. 3 shows the piping structure of the separate type air conditioner of the second embodiment.
This will be described with reference to FIG. As shown in FIG. 3, the piping structure of the separate type air conditioner of the second embodiment includes an intake duct 25, an exhaust duct 26, an electric wiring 23, and a drain pipe 2.
7 is inserted through the sleeve 16 fitted on the wall W. Here, the outer circumferences of the intake duct 25 and the exhaust duct 26 are shaped along the inner circumference of the sleeve 16. The high-pressure refrigerant pipe 21 and the low-pressure refrigerant pipe 22 are inserted into the exhaust duct 26.

According to the piping structure of the second embodiment, since the outer circumferences of the intake duct 25 and the exhaust duct 26 are formed along the inner circumference of the sleeve 16, the ventilation area of the intake duct 25 and the exhaust duct 26 is reduced. The ventilation duct 24 can be made larger, and the ventilation resistance can be reduced.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments.

In the above embodiment, the ventilation duct 2
4 is an intake duct 25 and an exhaust duct 26, but the number is not limited to two as long as the ventilation duct 24 includes at least one exhaust duct 26.

In the above-described embodiment, the refrigerant pipes 21 and 22 are arranged inside the exhaust duct 26 between the indoor unit 12 and the sleeve 16 fitted to the wall W. In addition, between the indoor unit 12 and the sleeve 16, each of the refrigerant pipes 21 and 22 may be disposed outside the ventilation duct 24 by covering with a heat insulating material.

[0026]

According to the present invention, by arranging the refrigerant pipe in the exhaust duct, there is no need to cover the refrigerant pipe with a heat insulating material, so that the space occupied by the refrigerant pipe can be saved. In addition, since the refrigerant pipe provided in the exhaust duct is not covered with a heat insulating material, a ventilation area in the exhaust duct can be secured.

Further, since the ventilation duct includes at least one intake duct, it is possible to exhaust indoor air and to inhale outdoor air, so that it is possible to adjust the internal pressure of the room and perform ventilation.

Further, a sleeve through which each pipe is inserted is fitted on the wall portion, and at least a part of the outer periphery of the ventilation duct inserted through the sleeve is formed along the inner periphery of the sleeve. The ventilation area in the ventilation duct can be increased.

[Brief description of the drawings]

FIG. 1 is a diagram showing a separate type air conditioner according to an embodiment.

FIG. 2 is a sectional view showing a piping structure of the separate type air conditioner according to the first embodiment.

FIG. 3 is a sectional view showing a piping structure of a separate type air conditioner according to a second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Separate type air conditioner, 12 ... Indoor unit, 14 ... Outdoor unit, 16 ... Sleeve, 21 ...
High pressure refrigerant pipe, 22 ... Low pressure refrigerant pipe, 23 ... Electrical wiring, 24 ... Ventilation duct, 25 ... Intake duct, 26 ...
Exhaust duct, 27: drain pipe, W: wall.

Claims (4)

[Claims] A refrigerant pipe for circulating a refrigerant between an indoor unit and an outdoor unit of the separate type air conditioner;
A ventilation structure including a ventilation duct for ventilating indoor air, wherein the ventilation duct exhausts air from the indoor unit to the outside through a wall part that separates the room from the outside. Wherein the refrigerant pipe is disposed in the exhaust duct at least at a portion inserted into the wall. 2. The piping structure for a separate type air conditioner according to claim 1, wherein the refrigerant pipe disposed in the exhaust duct is a bare pipe. 3. The piping structure for a separate type air conditioner according to claim 1, wherein the ventilation duct includes at least one intake duct that takes in air from the outside to the indoor unit. 4. A sleeve through which the ventilation duct is inserted is fitted into the wall, and at least a part of an outer periphery of the ventilation duct inserted through the sleeve has a shape along an inner periphery of the sleeve. The piping structure for a separate type air conditioner according to any one of claims 1 to 3, wherein: