JPH10227488A - Drain hose for separate type air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contribute to efficient installation work of an air-conditioner by forming a drain path around an electric wiring path formed at the hollow part of a drain hose. SOLUTION: A tubular passage 131 of liquidtight structure is arranged along the central part in the hose body 130 while being supported by a plurality of supporting parts 132 extending radially and a drain path 133 is formed around the passage 131 thus obtaining an integrally molded drain hose 13. A control signal is delivered from an indoor unit through an electric wiring 14 in the passage 131 arranged in the center of the hose body 130 to an outdoor unit and drain is discharged from the indoor unit through the drain path 133 to the outside. Since only the coolant tube and the drain hose 13 is required to be routed at the time of installing an air-conditioner, installation work is simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a separate type air conditioner having an indoor unit and an outdoor unit.
The present invention relates to a drain hose for discharging drain generated in an indoor unit to the outside of the room.

[0002]

2. Description of the Related Art Recently, air conditioners represented by so-called air conditioners have been remarkably popularized, and many air conditioners have been installed in homes.

As the air conditioner, a separate type air conditioner in which an indoor unit for blowing air for cooling and heating and an outdoor unit for generating a heat source necessary for cooling and heating are separately provided has been widely used. I have. And in such a separate type air conditioner, the indoor unit is attached to the wall surface of the room, and the outdoor unit is
Installed outside the house or on the veranda of a condominium, etc., these indoor units and outdoor units are connected by an internal / external connection refrigerant pipe and electrical wiring, and a drain hose that discharges drain generated in the indoor units to the outside is connected. ing.

In this case, the inside / outside connection refrigerant pipe, the electric wiring and the drain hose are respectively drawn out of the indoor unit and led out of the room through through holes formed in the wall surface. In the case where the through-holes on the wall face are located on the opposite side of the indoor unit with respect to the pipes, electric wiring, and the drain hose draw-out portion from the indoor unit, as shown in FIG. Along with the space 2, the inside / outside connection refrigerant pipe 3, the electric wiring 4, and the drain hose 5 are respectively housed and routed to the through hole side.

[0005]

However, in such a configuration, when the indoor unit 1 is installed,
Internal / external connection refrigerant pipe 3, electric wiring 4, and drain hose 5
However, since these are separate components, they are troublesome to handle, and if they are bundled together, more troublesome work such as tape winding for this purpose is required. Further, when the inside / outside connection refrigerant pipe 3, the electric wiring 4, and the drain hose 5 are to be stored in the storage space 2 at the back of the indoor unit 1 to be routed to the through hole, they cannot be completely stored as shown in the drawing. For example, there is a problem that the installation work of the indoor unit 1 is hindered, for example, a state in which the unit 1 floats from the wall surface.

The present invention has been made in view of the above circumstances, and has as its object to provide a drain hose of a separate type air conditioner which can contribute to an efficient installation work of the air conditioner.

[0007]

According to the first aspect of the present invention,
A separate type air conditioner comprising an indoor unit and an outdoor unit, wherein both units are connected by an internal / external connection refrigerant pipe and electric wiring, and a drain hose for discharging drain generated in the indoor unit to the outside of the room. , The drain hose is constituted by an integrally formed hose in which a passage for passing the electric wiring is formed in a hollow portion thereof, and a drain drain passage is formed around the passage.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of a separate type air conditioner to which the present invention is applied. In the figure, 11
Is an indoor unit, and a suction grill 111 is provided on the surface of the indoor unit 11.
An air filter 112 and a clean filter 113 are provided inside, and a heat exchanger and a cross flow fan (not shown) are further provided inside the clean filter 113.
Air for cooling and heating generated by the heat exchanger is blown out from the outlet 114 by rotation of the cross flow fan.

An indoor / outdoor connection refrigerant pipe 12 and a drain hose 13 are led out of such an indoor unit 11.

In this case, as shown in FIG. 2, the drain hose 13 has a tubular passage 131 of a liquid-tight structure disposed along the center of the inside of the hose body 130, and this passage 131 is connected to the inner surface of the drain hose 13. And a plurality of support portions 132 extending radially from the central portion to a central portion, and a portion surrounding the periphery of the passage 131 is formed in a drain drain passage 133 to constitute an integrally formed hose. The electric wiring 14 is inserted along the passage 131 of the drain hose 13.

The drain hose 13 is made of a heat insulating material to prevent dew condensation due to a temperature difference between the inside and outside. Of course, the drain hose 13 may be made of a material other than the heat insulating material, and the surrounding may be covered with the heat insulating material.

The inside / outside connection refrigerant pipe 12 and the drain hose 13 led out from the indoor unit 11 are connected directly to the outside unit 15, and the drain hose 13 is connected to the outdoor unit 15. When the vehicle is approached, only the electric wiring 14 is drawn out from the passage 131, and the drawn end of the electric wiring 14 is connected to the outdoor unit 15.

The outdoor unit 15 has an air outlet 151 at the front and an air inlet 152 at the side and rear.
Is formed.

With such a configuration, the control signal from the indoor unit 11 to the outdoor unit 15 passes through the electrical wiring 14 of the passage 131 disposed at the center of the hose body 130 of the drain hose 13 and the outdoor unit 15 The drain generated inside the indoor unit 11 is discharged to the outside through a drain drain 133 formed so as to surround the passage 131.

Accordingly, in this way, the drain hose 13 forms the passage 131 for passing the electric wiring 14 at the center of the hose body 130, and forms the drain drain passage 133 so as to surround the passage 131. When the air conditioner is installed, only the internal / external connection refrigerant pipe 12 excluding the electric wiring 14 and the drain hose 13 are routed, so that the piping and wiring including the conventional electric wiring are performed. Can be simplified in handling as compared with the case where each is individually routed.

In addition, in the case of using the storage space 110 at the back of the indoor unit 11 as shown in FIG. 3 in relation to the installation of the indoor unit 11, the electric hose 14 is housed in the drain hose 13 to reduce the space. So
The indoor unit 11 can be stored in the storage space 110 with a margin together with the inside / outside connection refrigerant pipe 12, so that the conventional indoor unit 11 can be prevented from floating from the wall surface, and the installation work of the indoor unit 11 is hindered. Various causes can be eliminated.

Furthermore, the temperature of the drain in the drain drain 133 rises due to the heat generated by the electric wiring 14 passing through the center of the drain hose 13, so that the thickness of the heat insulating material forming the hose body 130 for preventing dew condensation is formed. The size can be reduced, and the cost can be reduced accordingly.

In the above-described embodiment, a passage 131 for passing the electric wiring 14 is formed at the center of the hose body 130 of the drain hose 13, and a drain drain passage 133 is formed so as to surround the passage 131. But
For example, as shown in FIG. 4, the cylindrical passage 131 is formed so as to be eccentric from the center of the drain hose 13 and pass the electric wiring 14 so as to be in contact with the inner surface of the drain hose 13.
A configuration in which the periphery of 31 is formed in the drain drain 133 may be adopted.

In this case, the same effects as described above can be expected.

[0021]

As described above, according to the present invention, a drain hose is formed by an integrally formed hose which forms a passage for passing electric wiring in a hollow portion and forms a drain drainage passage around this passage. In addition to simplifying the wiring work when installing the air conditioner, the air conditioner can be securely stored in the storage space behind the indoor unit, which contributes to the efficient installation work of the air conditioner.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of a separate type air conditioner to which an embodiment of the present invention is applied.

FIG. 2 is a diagram showing a cross section of a drain hose used in one embodiment.

FIG. 3 is a diagram illustrating one embodiment.

FIG. 4 is a diagram showing a cross section of a drain hose according to another embodiment of the present invention.

FIG. 5 is a diagram illustrating an example of a related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Indoor unit, 111 ... Suction grille, 112 ... Air filter, 113 ... Clean filter, 114 ... Outlet, 12 ... Internal / external connection refrigerant piping, 13 ... Drain hose, 130 ... Hose main body 131 ... Passage, 132 ... Support part, 133 ... drain drainage channel, 14 ... electric wiring, 15 ... outdoor unit, 151 ... air outlet, 152 ... air inlet.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yasuo Katayama 3-chome, Asahimachi, Nishi-Biwajima-cho, Nishi-Kasugai-gun, Aichi Prefecture Mitsubishi Heavy Industries, Ltd. Air Conditioning Works

Claims (1)

[Claims] 1. An indoor unit and an outdoor unit, wherein both units are connected by an internal / external connection refrigerant pipe and electric wiring, and a drain hose for discharging drain generated in the indoor unit to the outside of the room is provided. In the separate type air conditioner, the drain hose is formed as an integrally formed hose having a hollow portion formed with a passage for passing the electric wiring, and a drain drainage passage formed around the passage. Drain hose for separate type air conditioner.