KR20020025125A - A Piping Fitting Method for Separation-type Air Conditioner with Buried-piping - Google Patents

Abstract

PURPOSE: A piping fitting structure for separation-type an air conditioner with buried-piping is provided to simplify installation of the air conditioner and to make installation environment clean. CONSTITUTION: A piping fitting structure for Separation-type air conditioner with buried-piping includes an outside piping; a one-touch type multiple pipe connecting device(A); and individual connecting device(B). The outside piping is composed as a mold piping(40) integrating various pipings of an air conditioner including a high-pressure and a low-pressure refrigerant pipes(a,b). The multiple pipe connecting device comprises external connectors(50) and an internal connector(60). The external connectors are installed on both side ends of a buried pipe(30) for various buried-piping of the air conditioner to be connected with and have passages for the pipings. The internal connector is installed on one end of the mold piping connected with the buried pipe for bound various piping of the air conditioner to be simultaneously connected with the external connector. The individual connecting device includes external connecting devices(80); and internal connecting devices(90). The external connecting devices are installed on inlets of pipings of an indoor unit and an outdoor unit, respectively. The internal connecting devices are placed on the other end of the mold piping and installed to ends of various pipings, dividedly formed respectively to be connected with the external connecting devices of the indoor and the outdoor units, correspondingly with the external connecting devices.

Description

Piping Fitting Method for Separation-type Air Conditioner with Buried-piping}

The present invention relates to piping connection of a separate air conditioner installed in an apartment, a general house, and the like, and in particular, a pipe construction work for connecting a buried pipe of an air conditioner buried inside a wall, an indoor unit, and an outdoor unit is dramatically simple, easy, and easy to install. It relates to a piping structure of a separate air conditioner including a buried pipe, to be clean, sweet.

In general, a separate type air conditioner using a phase conversion circulation cycle of a refrigerant is separately installed and installed in an indoor unit including an evaporator and a blower fan, and an outdoor unit including an compressor, a condenser, and the like. A refrigerant passage pipe for circulating the indoor unit and the outdoor unit is provided.

For such a coolant passage pipe in recent years it is common that the pipes for connecting the indoor and outdoor when the wall concrete is poured in landfill.

There are four types of plumbing in air conditioners.

That is, the gaseous refrigerant is compressed into a gaseous state of high temperature and high pressure by a compressor in the outdoor unit, and then heat exchanged by a heat radiating fan and a condensation action, and then pressure-reinforced through an expansion valve in a high temperature liquid state and then sent to the indoor unit. A high pressure refrigerant pipe (a) made of copper pipes to pass through; The high pressure refrigerant tube (a) is introduced into the evaporator of the indoor unit to vaporize to absorb the surrounding heat, and the cold air formed at this time is discharged into the room by a blower fan located adjacent to the evaporator and vaporized in the evaporator. A low pressure refrigerant pipe (b) made of copper pipe for recovering the low pressure refrigerant gas back to the outdoor unit; And drain pipe (c) for sending out the water generated by the condensation phenomenon to the outside; It is a signal cable (d) for signal exchange between the indoor unit and the outdoor unit.

In general, the method of connecting the indoor unit and the outdoor unit to the both ends of the buried pipe, the high-pressure pipe and low-pressure pipe made of copper pipes are each welded joint and the drain pipe is extended as it is, and drawn out to the outside, the signal cable is tape Hoist it and connect it.

The pipes connected in this way, in particular, the indoor side of the pipes are dizzying and tangled, there is a problem that hinders the appearance of the installation environment.

In addition, the above-mentioned conventional technology requires that each pipe be connected separately, and in particular, the refrigerant pipe has to be followed by welding work. Therefore, skilled workers must move separate equipment such as welding equipment to the site where most homes are housed. Manpower and time wasted was a problem.

In addition, a separate tape is required in the subsequent processing of the pipe to which the connection is made, so that a separate tape is required, and manpower and time are wasted on the winding, and the appearance is distracting, which hinders the environmental aesthetics.

The present invention has been made to solve the above problems,

An object of the present invention is to install an air conditioner by connecting the pipe embedded in the wall and the indoor unit and outdoor unit,

Consists of a mold pipe in which molds are bound together by a single member to form various pipes accompanying the air conditioner, and has a beautiful shape after the construction of the external pipe, so that the installation work of the air conditioner is remarkably simple, and the installation environment is clean and sweet. To provide a piping structure of a separate air conditioner.

Another object of the present invention, by connecting the embedded pipe and the indoor unit, the embedded pipe and the outdoor unit to the mold pipe, by providing a multi-connected simultaneous connection and individual connection port for easy one-touch attachment and detachment at each connection end,

Compared with the prior art, no additional work equipment is required, which significantly increases maneuverability, minimizes contamination of the work environment, and greatly eases and eases installation of air conditioners. It is to provide a piping structure of a separate air conditioner including a buried pipe to drastically reduce the installation cost.

1 is a schematic conceptual diagram of the present invention

Figure 2 is a partially omitted exploded cross-sectional view showing a pipe connection structure of one embodiment of the present invention.

3 is a connected connection state diagram of FIG.

4 is a side view of the wall side of FIG. 2;

5 is a cross-sectional view of a mold pipe of one embodiment according to the present invention.

6 is a block diagram of an embodiment according to the present invention,

7 is a block diagram of an embodiment according to the present invention.

* Description of symbols for the main parts of the drawings.

10: indoor unit 20: outdoor unit

30: landfill 33: enclosure

40: mold piping 41: heat insulating material

43: shell A: multi-pipe simultaneous connection

50: Male connector 51: Pipeline

52: base portion 53: protrusion pipe

54: screw 60: female connector

61: insertion pipe 62: piping connection

63: Stone Jaw 65: O-Ring

70: fastener 71: screw

B: Individual connector 80: Male connector

90: female connector 91: volki

92: spring 93: tightening ring

a: high pressure refrigerant tube b: low pressure refrigerant tube

c: drain pipe d: signal cable

da: connection module

The piping structure of the separate type air conditioner including a buried pipe according to the present invention for achieving the above object,

It is installed separately from the indoor unit and the outdoor unit, and various air conditioner pipes such as a high / low pressure refrigerant pipe, a drain pipe, and a signal cable for connecting the indoor unit and the outdoor unit to a wall are installed as a buried pipe, and both ends of the buried pipe and the indoor unit are installed. In the installation structure of the air conditioner for connecting the outdoor unit to the external pipe,

The outer pipe is provided with a mold pipe that is composed of a single unit of a plurality of air conditioning pipes including the high / low pressure refrigerant pipe;

A male connector provided at both ends of the buried pipe and connected with a plurality of embedded air conditioner pipes and having respective passages;

It is provided at one end of the mold pipe connected to the buried pipe, and provided with a one-touch multi-channel simultaneous connection port consisting of a female connector to be connected to the various air-conditioning pipe connected to the male connector at the same time;

A male connector provided to each of the piping ports of the indoor unit and the outdoor unit;

The other end of the mold pipe is formed of a female connector corresponding to the male connector, which is distributed to a plurality of pipes which are formed to be distributed in a predetermined length, and is distributed to be exposed to each male connector of an indoor unit or an outdoor unit. With individual connections;

The connection between the outdoor unit of the air conditioner and the wall buried pipe and the indoor unit is connected to the mold pipe, and the buried pipe and the mold pipe are connected in one-touch manner through the multi-pipe simultaneous connection, and the outdoor unit, the mold pipe, the indoor unit and the mold pipe are connected. Is characterized in that the connection is installed in one-touch manner through the individual connection.

In one embodiment of the present invention, the mold pipe is a high pressure refrigerant pipe, a low pressure refrigerant pipe, a drain pipe, the signal cable is molded in a heat insulating material, the outer surface of the heat insulating material is preferably coated.

As an embodiment of the present invention, the high pressure refrigerant pipe, the low pressure refrigerant pipe and the drain pipe molded to the mold pipe may be provided as a corrugated pipe.

As an embodiment of the present invention, the multi-pipe simultaneous connection port is a high pressure refrigerant pipe for connecting communication with the air conditioning pipe of the buried pipe, a low pressure refrigerant pipe, a drain pipe passage is formed therein and the base portion with a screw formed on the outer peripheral surface, A male connector consisting of a protruding conduit in which the conduit protrudes into a separate conduit;

Each insertion pipe passage for inserting and connecting the respective protruding pipe passages therein, and a pipe connecting portion communicating with the respective insertion pipe passages and connected to various air conditioner pipes of the mold pipe, are provided on the insertion pipe side outer edge. A female connector forming a stone jaw;

It is inserted into the outer edge of the female connector, the separation is prevented by the stone jaw, the inner peripheral surface is formed with a screw for fastening to the screw of the male connector is characterized in that it consists of a fastener for fastening the male connector and the female connector.

As an embodiment of the present invention, the multi-pipe simultaneous connector male connector provided to the indoor end of the buried pipe is a high pressure refrigerant pipe, a low pressure refrigerant pipe, a drainage pipe is formed;

The male connector applied to the outdoor end has a high pressure refrigerant pipe and a low pressure refrigerant pipe;

The signal cable is characterized in that connected through a separate connection module.

As an embodiment of the present invention, the end of the buried pipe is provided with a housing fixed to the wall,

The housing is characterized in that the male connector and the signal cable connection module is installed.

In one embodiment of the present invention, the male connector and the female connector is characterized in that a multi-stage O-ring or packing is provided to prevent leakage of airtight.

In one embodiment of the present invention, the multi-tube simultaneous connection port, and the male connector is provided on the buried tube side and formed a groove jaw for fastening the ball key to be described later;

Corresponding to the male connector is configured on the mold pipe side, a plurality of ball keys are provided on the main surface and may be composed of a coupling consisting of a female connector having a spring and a coupling ring on the outer peripheral surface for fastening and releasing the ball key. .

In one embodiment of the present invention, the individual connector is provided on the indoor unit and outdoor unit side, the screw is formed on the outer circumferential surface and the male connector formed with a protrusion pipe;

A female connector formed on the mold pipe side in correspondence to the male connector, an insertion tube for inserting and connecting the protrusion tube therein, and a female connector having a stone jaw formed on an outer edge thereof;

Inserted into the outer edge of the female connector, the separation is prevented by the stone jaw, the inner peripheral surface is formed with a screw for fastening to the screw of the male connector is characterized in that it consists of a fastener for fastening the male connector and the female connector.

As an embodiment of the present invention, the individual connector is provided on the indoor unit and the outdoor unit side and the male connector formed a groove jaw for fastening the ball key to be described later;

Corresponding to the male connector is formed on the mold pipe side and a plurality of ball keys are provided on the main surface and may be composed of a coupling consisting of a female connector having a spring and a coupling ring on the outer peripheral surface for fastening and releasing the ball key.

Hereinafter, an embodiment of a piping structure of a split type air conditioner including a buried pipe of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a schematic conceptual view of a piping structure of a separate air conditioner including a buried pipe according to the present invention, and FIG. 2 is partially omitted to show a pipe connection structure of a pipe structure of a separate air conditioner including a buried pipe according to an embodiment of the present invention. 3 is an exploded cross-sectional view, and FIG. 3 is a connection state diagram of FIG. 2, and FIG. 4 is a side view of the wall of FIG. 2.

As shown in Figures 1 to 4, the piping structure of a separate type air conditioner including a buried pipe of an embodiment according to the present invention,

It is installed separately from the indoor unit 10 and the outdoor unit 20, and a variety of high and low pressure refrigerant pipe (a) (b), drain pipe (c), signal cable (d) for connecting the indoor unit and the outdoor unit on the wall In the air-conditioning piping of the buried pipe 30 is installed, the air conditioning installation structure for connecting both ends of the buried pipe 30 and the indoor unit 10 and the outdoor unit 20 to the external pipe, respectively,

Mold pipe 40 to be connected to the outside, the multi-pipe simultaneous connection (A) for connecting and connecting the buried pipe 30 and the mold pipe 40, the mold pipe 40 and the indoor unit 10 and the outdoor unit 20 It is provided with a separate connector (B) for connecting and connecting in a one-touch manner.

The mold pipe 40, as shown in the cross section of Figure 5, one of the air conditioner pipe of various types including the high / low pressure refrigerant pipe (a) (b), drain pipe (c), signal cable (d) Binding was composed of a single unit.

The mold pipe 40 is molded by a heat insulating material 41, it is preferable that the outer cover 43 is coated on the surface of the heat insulating material (41).

Although the high pressure refrigerant pipe (a), the low pressure refrigerant pipe (b) and the drain pipe (c) molded to the mold pipe 40 may be formed as a flat pipe, but as shown in Figure 6 for flexibility for bending, etc. It is preferable to be provided with a corrugated pipe.

The drain pipe (c) is preferably provided with a corrugated pipe.

One end of the mold pipe 40 is connected to the female connector 60 to be described later of the multi-pipe simultaneous connection (A) at the same time, the other end is connected to each connector of the indoor unit 10 or the outdoor unit 20 A plurality of pipes bound in order to form a predetermined length of exposure dispersion.

The multi-pipe simultaneous connection A for connecting and connecting the buried pipe 30 and the mold pipe 40 is a male connector 50 provided at both ends of the buried pipe 30 and the mold pipe 40 connected thereto. Consists of a female connector 60 is given to one end of the,

The male connector 50 and the female connector 60 have a structure in which the male connector 50 is detachable.

The male connector 50 is connected to a variety of air conditioning pipes, such as a high / low pressure refrigerant pipe embedded in the buried pipe 30 is provided with a respective passage.

The female connector (60) is a plurality of conduits (51) for simultaneously connecting and communicating a plurality of air-conditioning pipes such as high and low pressure refrigerant pipe (a) (b) bound to the mold pipe (40) to the male connector (50) It was configured integrally.

The multi-pipe simultaneous connection port (A) of the embodiment according to the present invention is a high / low pressure refrigerant pipe passage (51a) (51b), the drainage pipe (51c) is formed therein for communication with the air conditioning pipe of the buried pipe (30) A male connector 50 having a base portion 52 having a screw 54 formed on an outer circumferential surface thereof, a protruding pipe passage 53 in which each of the conduits 51 protrudes as a separate pipe,

Each insertion pipe path 61 for inserting and connecting the respective protruding pipe paths 53 therein, and communicating with the respective insertion pipe paths 61, for connecting various types of air conditioner pipes of the mold pipe 40, respectively. A female connector 60 having a pipe connecting portion 62, and having a stepped portion 63 formed at an outer edge of the insertion pipe 61;

Inserted into the outer edge of the female connector 60, the separation is prevented by the stone jaw 63, a screw 71 for fastening to the screw 54 of the male connector 50 is formed on the inner peripheral surface of the male connector It consists of a fastener 70 for fastening the 50 and the female connector 60.

The male connector 50 and the female connector 60 of the multi-pipe simultaneous connection (A) is preferably provided with a multi-stage O-ring 65 or packing for preventing airtight leakage.

Such a multi-pipe simultaneous connection (A) is a multiple pipe at the same time the connection is made and the fastener 70 is turned to connect several pipe joints at a time simply made, the connection part is a multi-stage O-ring 65 or packing It is equipped with airtight leakage is thoroughly blocked.

The piping connecting the outdoor unit 20 and the indoor unit 10 of the air conditioner is followed by a high pressure refrigerant pipe (a), a low pressure refrigerant pipe (b), and a signal cable (d), and the drainage pipe (c) discharged to a separate outside in the indoor unit. Since the high and low pressure refrigerant pipe (a) (b) and the signal cable (d) is provided in the entire pipe from the indoor unit to the outdoor unit, while the drain pipe (c) is a mold pipe 40 in the indoor unit (10) The wall buried pipe 30 is directly drawn out to the outside without going to the outdoor unit at a predetermined position through the wall.

Therefore, the male connector 50, which is provided at the indoor end of the multi-pipe simultaneous connection A installed at both ends of the buried pipe 30, includes the drain pipe c, has a high / low pressure refrigerant pipe path (a) and (b). Although the drainage pipe c is provided, the drainage pipe was excluded from the thing provided in the outdoor side.

However, the drain pipe path (c) may be drawn out through the buried pipe (30).

The signal cable (d) is included in the mold pipe, but is not included in the multi-pipe simultaneous connection (A) in connection with the connection structure, and is connected through a separate connection module (da).

At the end of the buried pipe 30 is installed a housing 33 fixed to the wall,

Preferably, the housing 33 is provided with the male connector 50 and a signal cable connection module da.

The enclosure 33 may be embedded in the wall.

The individual connection port (B) is formed by dispersing the pipes formed in the indoor unit 10 and the outdoor unit 20 is distributed to each of the pipes in the mold pipe 40 by a predetermined length to be distributed and connected individually The connection structure was formed into a one-touch connection structure.

Plumbing ports formed in the indoor unit 10 and the outdoor unit 20 are provided with a male connector 80 of a one-touch type individual connector, and the male connector is formed at each pipe end formed with a predetermined length of the mold pipe 40 distributed. 80 is provided with a female connector 90 corresponding to the fastener 95 for fastening the same.

The coupling structure of the male connector 80 and the female connector 90 of the individual connector (B) is the same structure as the coupling structure of the multi-pipe simultaneous connector (A) as shown in Figs.

That is, a screw is formed in the male connector 80 and the female connector 90 and is configured to include a fastener 95 for fastening the same.

As one embodiment according to the present invention, the one-touch individual connector (B) is, as shown in Figure 7, the male connector 80 is to form a groove to fasten the ball key 91 to be described later, corresponding to this Female connector 90 is provided with a plurality of ball keys 91 on the main surface and may be composed of a coupling having a spring 92 and a coupling ring 93 on the outer peripheral surface for fastening and releasing the ball key 91. have.

The coupling structure of the male connector 50 and the female connector 60 of the multi-pipe simultaneous connection A may also have a coupling structure having a ball key, a spring, and a coupling ring of FIG. 7.

The number of males and females in the fastening structure of the multi-pipe simultaneous connection A and the individual connection B may be changed, and may be configured in a key turn structure or other various forms.

It looks at the installation and operation of the present invention having the above components.

The external pipe connecting the outdoor unit 20 and the wall buried pipe 30, the wall buried pipe 30, and the indoor unit 10 of the air conditioner forms various pipes such as a high / low pressure refrigerant pipe and a signal cable as a single pipe. By providing the outer shell with a mold pipe 40 formed in a beautiful color, the installation environment is significantly clean and elegant compared to the prior art in which several strands of pipes are cluttered.

In addition, the connection of the buried pipe 30 and the mold pipe 40 is connected to the multiple pipes at the same time in a one-touch manner through the multi-pipe simultaneous connection (A),

Connection of the outdoor unit 20 and the mold pipe 40, the indoor unit 10 and the mold pipe 40 is to be installed in a one-touch manner through the individual connection port (B).

In this connection structure, the one-touch connection means consisting of the multi-pipe simultaneous connection (A) and the individual connection port allows easy and precise coupling of several pipes, which greatly facilitates the pipe joint work, thus eliminating the need for additional equipment such as a welding device. Compared to the prior art, the maneuverability is significantly increased, the pollution of the working environment is minimized, and even a skilled worker can be installed, and the manpower and time can be significantly reduced to reduce the installation construction cost.

In addition, the mold pipe 40 is formed in the corrugated pipe to the elastic pipe and the like to be bound to the good elasticity is free to bend and easy to install the pipe.

Thus, the piping structure of the separate type air conditioner including a buried pipe according to the present invention, in connecting the indoor unit 10 and the outdoor unit 20 through the wall pipe buried pipe 30, a single body having a beautiful appearance of the various external pipes By using the mold pipe 40 of the pipe, and the pipe joint is made easily by using the multi-pipe simultaneous connection port (A) and the individual connection port (B) which is a one-touch connection as the connection means, significantly improve the appearance of the installation environment It is a technology that drastically reduces the labor cost of installation, installation and construction work.

In the above embodiment has been described in the case where the present invention is applied to the air conditioning pipe, it will be obvious that this can be applied to any case in the field that can be applied not only to the air conditioning pipe, but also to the pipeline of the general fluid pipe,

In addition, the present invention can be variously substituted, modified and changed without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains, It is not limited.

As described in detail above, the piping structure of a separate type air conditioner including a buried pipe according to the present invention,

In installing the air conditioner by connecting the buried pipe installed in the wall with the indoor unit and the outdoor unit,

By using the mold pipe which mold-bound several pipes accompanying air conditioner to an external pipe as one single member, and providing a one-touch connector as a connection means,

The air conditioner installation environment and appearance should be remarkably clean and beautiful.

In addition, installation and construction is remarkably easy, and no additional work equipment or tools are required, which improves maneuverability compared to the prior art, minimizes contamination of the working environment, and greatly reduces and eases installation of air conditioners. It is a technology to significantly reduce installation costs.

Claims (10)

It is installed separately from the indoor unit and the outdoor unit, and various air conditioner pipes such as a high / low pressure refrigerant pipe, a drain pipe, and a signal cable for connecting the indoor unit and the outdoor unit to a wall are installed as a buried pipe, and both ends of the buried pipe and the indoor unit are installed. In the installation structure of the air conditioner for connecting the outdoor unit to the external pipe, The outer pipe is provided with a mold pipe that is composed of a single unit of a plurality of air conditioning pipes including the high / low pressure refrigerant pipe; A male connector provided at both ends of the buried pipe and connected with a plurality of embedded air conditioner pipes and having respective passages; It is provided at one end of the mold pipe connected to the buried pipe, and provided with a one-touch multi-channel simultaneous connection port consisting of a female connector to be connected to the various air-conditioning pipe connected to the male connector at the same time; A male connector provided to each of the piping ports of the indoor unit and the outdoor unit; The other end of the mold pipe is formed of a female connector corresponding to the male connector that is distributed to a plurality of pipes formed in a predetermined length and distributed to be connected to each male connector of an indoor unit or an outdoor unit. With individual connections; The connection between the outdoor unit of the air conditioner and the wall buried pipe and the indoor unit is connected to the mold pipe, and the buried pipe and the mold pipe are connected in one-touch manner through the multi-pipe simultaneous connection, and the outdoor unit, the mold pipe, the indoor unit and the mold pipe are connected. Pipe structure of a separate type air conditioner including a buried pipe, characterized in that the connection is installed in one-touch manner through the individual connection. The method of claim 1, The mold pipe is a high pressure refrigerant pipe, a low pressure refrigerant pipe, a drain pipe, the signal cable is molded by a heat insulating material, Pipe structure of a separate air conditioner including a buried pipe, characterized in that the outer surface of the insulation is covered with a covering. The method according to claim 1 or 2, The high pressure refrigerant pipe, the low pressure refrigerant pipe and the drain pipe are molded in the mold pipe, the piping structure of a separate air conditioner comprising a buried pipe, characterized in that provided as a corrugated pipe. The method of claim 1, The multi-pipe simultaneous connection, A high pressure refrigerant pipe for connecting communication with the air conditioner pipe of the buried pipe, a low pressure refrigerant pipe, a drainage pipe is formed in the inner side and the base portion with a screw formed on the outer circumferential surface, a male connector consisting of a protruding pipe line each protruded into a separate pipe Wow; Each insertion pipe passage for inserting and connecting the respective protruding pipe passages therein, and a pipe connecting portion communicating with the respective insertion pipe passages and connected to various air conditioner pipes of the mold pipe, are provided on the insertion pipe side outer edge. A female connector forming a stone jaw; It is inserted into the outer edge of the female connector, the separation is prevented by the stone jaw, the inner peripheral surface is formed with a screw for fastening to the screw of the male connector is formed as a fastener for fastening the male connector and the female connector Piping structure of a separate air conditioner including a pipe. The method according to claim 1 or 5, The multi-pipe simultaneous connector male connector provided to the indoor end of the buried pipe is a high pressure refrigerant pipe, a low pressure refrigerant pipe, a drain pipe is formed; The male connector applied to the outdoor end has a high pressure refrigerant pipe and a low pressure refrigerant pipe; The signal cable is a piping structure of a separate air conditioner including a buried pipe, characterized in that connected through a separate connection module. The method of claim 1, At the end of the buried pipe is installed a housing fixed to the wall, The housing is a piping structure of a separate air conditioner comprising a buried pipe, characterized in that the male connector and the signal cable connection module is installed. The method according to claim 1 or 4, Connection portion of the male connector and female connector is a piping structure of a separate air conditioner including a buried pipe, characterized in that provided with a multi-stage O-ring or packing for preventing airtight leakage. The method of claim 1, The multi-tube simultaneous connection is A male connector provided at the buried side and having a groove jaw for fastening a ball key to be described later; Comprising the male connector corresponding to the male connector, a plurality of ball keys are provided on the main surface and consists of a coupling consisting of a female connector provided on the outer peripheral surface with a spring and a fastening ring for fastening and releasing the ball key. Piping structure of a separate type air conditioner including a buried pipe. The method of claim 1, The individual connection port, A male connector provided at the indoor unit and the outdoor unit and having a screw formed on an outer circumferential surface thereof and having a protruding pipe line; A female connector formed on the mold pipe side in correspondence to the male connector, an insertion tube for inserting and connecting the protrusion tube therein, and a female connector having a stone jaw formed on an outer edge thereof; Inserted into the outer edge of the female connector, the separation is prevented by the stone jaw, the inner peripheral surface is formed with a screw for fastening to the screw of the male connector is formed with a fastener for fastening the male connector and the female connector Piping structure of a separate air conditioner including a pipe. The method of claim 1, The individual connection port, A male connector provided at the indoor unit and the outdoor unit and forming a groove jaw for fastening a ball key to be described later; Corresponding to the male connector is formed on the mold pipe side is provided with a plurality of ball keys on the main surface and consists of a coupling consisting of a female connector having a spring and a fastening ring on the outer peripheral surface for fastening and releasing the ball key Piping structure of a separate type air conditioner including a buried pipe.