JPH0579660A - Pipeline structure for air-conditioning machine - Google Patents

Abstract

PURPOSE:To reduce man-hours for a work by a method wherein the inner part of a pipeline is divided into a plurality of divisions and one of them is penetrated by a pipeline filled with foaming heat insulating material while a pipeline unit, through which a connecting cable and a drain hose are penetrated, is connected to the other division of the pipeline through a connecting pipe unit and a connecting cover, in the pipeline structure of a split type air-conditioning machine. CONSTITUTION:Piping units 1, curved into L-shape and having the shape of a straight line, are prepared and a plurality of pipelines 3 are penetrated through respective piping units 9 so that both ends of the same are projected out of the piping units 1 by a predetermined length while a half union 12 is attached to one end of the pipeline and a flare nut 13 is attached to the other end of the same in accordance with a connecting direction. A space between the pipeline 3 and the piping unit 9 is filled with foaming insulating material 14. A connecting cable is penetrated through a cable unit 11 and a drain hose is penetrated through a drain unit 10 respectively. A pipeline, pulled out of the wall surface of a room, is connected to the pipeline 3 of a piping unit 1 while the linear piping units 1 are connected. Then, respective connecting part between the piping units 1 are connected through a connecting pipe unit 6 and a connecting part cover 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe structure for a split type air conditioner.

[0002]

2. Description of the Related Art Conventionally, in the installation of a split type air conditioner, as shown in FIG. 4, the mounting position of the indoor unit is determined at the installation site, a wall hole 5 penetrating the wall surface is opened, and the outdoor unit 2 is installed outdoors. Is installed, the length of the pipe 3 is determined according to the positions of the indoor unit and the wall hole 5 and the outdoor unit 2, and bending and processing are performed. At the same time, the drain hose 24 is connected from the indoor unit.
And the connection cable 4 are drawn out through the wall hole 5 and are covered with the heat insulating material, and the drain hose 24 and the connection cable 4
Is integrally wound with a decorative tape 25, and is fixed to the outer wall at several places with a fixing bracket 6. Further, when the appearance is a problem, the pipe cover having a U-shaped cross section is placed on the pipe cover and fixed to the outer wall. Most of these operations are manually performed at the site, which is troublesome and inefficient, resulting in a bottleneck in the installation work.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and it has been divided into a plurality of sections in advance for the troublesome piping connection and piping cover mounting work at the installation site. It is an object of the present invention to provide a piping structure of an air conditioner that simplifies by combining piping units and reduces the number of work steps.

[0004]

In order to achieve the above-mentioned object, the inside of a cylinder is divided into a plurality of compartments, a plurality of pipes are inserted into at least one of the compartments, and a foamed heat insulating material is provided in a gap between the pipes. A piping unit that is filled and has fittings attached to both ends of the piping, and a connecting pipe unit that has a cross-sectional shape corresponding to other sections with a length that matches the connection gap between the piping units,
A connecting portion cover that faces the connecting pipe unit and covers the pipe connecting portion is provided, and a pipe from the indoor unit to the outdoor unit is configured by combining a plurality of piping units and the connecting pipe unit and the connecting portion cover. The connection cable and the drain hose were inserted into the other section of the connection pipe unit. In addition, another section of the piping unit is used as a drainage passage in place of the drain hose, a downwardly projecting tubular joint is provided at the lower end of the target section, and the joint section is provided at the upper end of the corresponding section of the connecting pipe unit. A drainage channel is formed by forming an opening portion into which is inserted and a second joint portion that protrudes downward at the lower end and is inserted into a corresponding section of an adjacent piping unit. Furthermore, a connection cable was embedded in another section of the piping unit and was connected by a connector at the connection portion of the piping unit.

[0005]

According to the above construction, the inside is divided into a plurality of compartments in a tubular shape, a plurality of pipes are inserted into the one compartment, a foam insulation material is filled in a gap between the pipes, and a connecting tool is provided at both ends of the pipes. The piping unit that has been installed, a connecting pipe unit that has a length that matches the connection gap between the piping units and is shaped to match other sections of the piping unit, and a connection unit that faces the connecting pipe unit and covers the connecting unit of the piping unit. By providing a cover and combining and connecting these piping units with the connection pipe unit and the connection section cover, the piping from the indoor unit to the outdoor unit is formed, and the connection cable and drain hose are inserted into other sections of the piping unit. By doing so, the connection cable and the drain hose can be attached without being exposed.

[0006]

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a view showing an installed state of an outdoor unit 2 using a piping unit 1 of the present invention, in which a pipe 3, a connection cable 4, a drain hose 24 connected to the indoor unit is a decorative tape 25.
The pipe 3 drawn out to the outside from the wall hole 5 formed in the wall surface is connected to the pipe unit 1 near the outlet of the wall hole 5, and the connecting portion is covered with a heat insulating material. The other end of the unit 1 is connected to the piping unit 1 formed in a linear or L-shape with the connection pipe unit 6 sandwiched therebetween, the connection portion is covered with a heat insulating material, and the connection portion cover 7 surrounds the connection portion cover 7. By locking to the connection pipe unit 6, the gap of the piping unit 1 is filled, and similarly, by connecting a plurality of piping units 1 along the wall surface, the piping unit 1 is guided to the outdoor unit 2, and several points on the way are fixed by the fixing metal fittings 8. It is mounted on the wall. The piping unit 1 has a cross-section made of an aluminum alloy, hard vinyl chloride, or the like formed by an extrusion-molded product as shown in FIG. 2B, has three through holes provided therein, and has holes through which the piping 3 is inserted (the piping portion 9). ), A drain drainage hole (drain portion 10), and a hole (cable portion 11) through which the connection cable 4 is inserted.

FIG. 2 is a perspective view of a main part showing a connected state of the piping unit 1. The blocks of each piping unit 1 are bent into an L-shape, and linearly divided into a predetermined length into several types. The piping unit 9 of the piping unit 1 is inserted with a plurality of pipes 3 having a length in which both ends of the pipe unit 1 are projected from the piping unit 1 by a predetermined length. A half union 12 at one end and a flare nut 13 at the other end, and a foaming heat insulating material 14 is filled between the pipe 3 and the inner wall of the pipe portion 9 so that the pipes 3 do not come close to each other and are almost in the center of the pipe portion 9. It is fixed to. In the cable portion 11 of the piping unit 1, male and female connectors 15 having a number of pins corresponding to the number of strands of the connecting cable 4 are fixed at both ends in accordance with the connecting direction, and the connecting cable 4
Through the cable portion 11 and connected to the respective connectors. Further, at the lower end portion of the drain portion 10, there is formed a protruding portion 17 protruding downward and having an outer dimension smaller than the inner dimension of the drain portion 10. The connecting pipe unit 6 and the connecting portion cover 7 are inserted into the connecting portions of the pipe units 1 adjacent to each other, and the connecting pipe unit 6 and the connecting portion cover 7 have lengths corresponding to the intervals at which the respective pipes are connected. The connecting portion cover 7 is made of the same material as that of the cover 1. The connecting portion cover 7 has a U-shaped cross section corresponding to the pipe portion 9, and has a plurality of protruding claws 18 formed at its open end. The connecting pipe unit 6 has a shape in which the drain portion 10 and the cable portion 11 of the piping unit 1 are combined, and a protruding portion 17 having an outer dimension according to the inner dimension of the drain portion 10 is provided below the drain portion 10 of the connecting pipe unit 6. Is provided, and the male part 15 and the female part 16 of the connector are attached to the cable part 11 similarly to the cable part 11 of the piping cover 1, and the side wall of the cable part 11 is engaged with the claw 18 of the connection part cover 7. An engaging hole 19 is provided.
The pipe unit 1 in this state is selected to form a pipe path to the outdoor unit 2, the connecting pipe unit 6 is inserted between the adjacent pipe units 1 with the projecting portion 17 as a guide, and the connector of the cable portion 11 is inserted. By connecting each of the pipes 3 with the pipe portion 9, covering the connection portion with a heat insulating material, inserting the connection portion cover 7 from the side surface and engaging with the connection pipe unit 6
, The connected pipe 3 and the connection cable 4 are connected to the outdoor unit 2, and the drain portion 10 is opened downward, so that the outdoor pipe processing can be performed. Instead of the connector of the cable portion 11, as shown in FIG. 3, an insertion hole 20 is opened at one side of the cable portion 11 and the connecting cable 4 is made by soldering or the like.
The core wire 21 is inserted all at once, the insertion hole 20 and the core wire 21 are fitted into one side of the opposing cable portion 11, and the boss 22 made of a conductive material having the connection cable 4 attached to the other end and the core wire 21 are sandwiched. The connecting cable 4 can be connected by providing the material locking claws 23 and inserting and sandwiching the core wire 21.

[0008]

As described above, according to the present invention, the inner side is divided into a plurality of compartments in the shape of a cylinder, and a plurality of pipes are inserted into one of the compartments to fill the gap between the pipes with the foamed heat insulating material. , A piping unit with fittings attached at both ends of the piping, a connecting pipe unit with a length matching the connection gap between the piping units and adapted to the other partition of the piping unit, and a piping unit facing the connecting pipe unit By preparing a connection part cover that covers the connection part of, and forming the piping and connection cable from the indoor unit to the outdoor unit by connecting the above piping unit, the connection pipe unit and the connection part cover, the conventional installation site It is possible to improve the installation work without the need to bend the pipe in the process, form with decorative tape, or attach the pipe cover. In addition, the piping unit can be standardized and prepared, and repairs and replacements can be easily dealt with, and the amount of drain hose and decorative tape used can be reduced.

[Brief description of drawings]

FIG. 1 is a view showing an installed state of an outdoor unit using a pipe cover of the present invention.

FIG. 2 is a main part perspective view showing a connected state of a pipe cover.

FIG. 3 is a main-portion cross-sectional view showing another embodiment of the cable connecting portion.

FIG. 4 is a view showing a conventional mounting state.

[Explanation of symbols]

 1 Piping unit 2 Outdoor unit 3 Piping 4 Connection cable 5 Wall hole 6 Connection pipe unit 7 Connection part cover 8 Fixing fitting 9 Piping part 10 Drain part 11 Cable part 12 Half union 13 Flare nut 14 Foam insulation 15 Connector male type 16 Female connector 17 Projection 18 Claw 19 Engagement hole 20 Insertion hole 21 Core wire 22 Boss 23 Locking claw 24 Drain hose 25 Decorative tape

Claims (3)

[Claims] 1. A tubular type partitioning the inside into a plurality of compartments, inserting a plurality of pipes into at least one of the compartments, filling a gap between the pipes with a foam insulation material, and attaching a connecting tool to both ends of the pipes. A pipe unit, a connection pipe unit having a cross-sectional shape corresponding to another section with a length matched to the connection gap between the pipe units, and a connection portion cover facing the connection pipe unit and covering the pipe connection portion are provided. Combining multiple piping units, connecting pipe units, and connection cover to form piping from the indoor unit to the outdoor unit, and inserting the connecting cable and drain hose into other sections of the piping unit and connecting pipe unit. The air conditioner piping structure characterized by the above. 2. The other section of the piping unit is used as a drainage passage in place of a drain hose, and a cylindrical joint projecting downward is provided at the lower end of the target section, and the corresponding section upper end of the connection tube unit is provided. The air conditioner according to claim 1, wherein an opening for inserting the joint is formed and a second joint is formed at a lower end thereof and protrudes downward and is fitted in a corresponding section of an adjacent pipe unit. Piping structure. 3. The piping structure for an air conditioner according to claim 2, wherein a connection cable is embedded in another section of the piping unit and is connected by a connector at a connecting portion of the piping unit.