KR100803774B1 - Pipe of air conditioner - Google Patents

Abstract

An air conditioner pipe is provided to connect indoor/outdoor connection pipes formed of copper materials to an aluminum connection pipe for reducing the manufacturing cost while simplifying the connection work. An air conditioner pipe includes an indoor unit connection pipe(10) connected to an indoor unit(I) and containing copper materials, an outdoor unit connection pipe(20) connected to an outdoor unit(O) and containing the copper materials, and an aluminum connection pipe(30) connected to the indoor unit connection pipe and the outdoor unit connection pipe and containing aluminum materials. First and second reinforcement elements(40,50) surround connection parts between the indoor unit connection pipe and the aluminum connection pipe, and between the outdoor unit connection pipe and the aluminum connection pipe. First and second fixing elements(42,52) fix the first and second reinforcement elements to the indoor/outdoor connection pipes and the aluminum connection pipes in close contact.

Description

Piping of air conditioner

1 is a schematic diagram installed between an outdoor unit and an indoor unit of a first embodiment of the installation pipe of an air conditioner according to the present invention;

2 is an exploded view of a first embodiment of the installation piping of the air conditioning according to the present invention;

3 is a cross-sectional view showing a connecting portion of the aluminum tube and copper tube shown in FIG.

Figure 4 is a schematic diagram installed between the outdoor unit and the indoor unit of the second embodiment of the installation pipe of the air conditioner according to the present invention,

5 is an exploded view of a second embodiment of the installation pipe of the air conditioner according to the present invention;

6 is a schematic view when the second embodiment of the installation pipe of the air conditioner according to the present invention is bent,

7 is a schematic view of a third embodiment of the installation pipe of the air conditioner according to the present invention installed between an outdoor unit and an indoor unit;

8 is a schematic view showing a fourth embodiment of the installation pipe of the air conditioner according to the present invention;

9 is a schematic view showing a fifth embodiment of the installation pipe of the air conditioner according to the present invention.

<Explanation of symbols on main parts of the drawings>

10: indoor unit connector 20: outdoor unit connector

30: aluminum tube 30 ′: first aluminum tube

30 ″: second aluminum tube 40,40 ′: first reinforcing member

50,50 ': second reinforcing member I: indoor unit

O: outdoor unit

The present invention relates to an installation pipe of an air conditioner for connecting an indoor unit and an outdoor unit, and more particularly, to an installation pipe of an air conditioner, wherein the installation pipe of the air conditioner is a combination of an aluminum pipe and a copper pipe.

In general, an air conditioner is a device for treating intake air and supplying it to a building or a room to maintain indoor air in a comfortable condition. The air conditioner is classified into a separate type or a split type and a window type.

The separate type and the integrated type are functionally the same, but the integrated type integrates the functions of cooling and heat dissipation, and is mounted on a wall or window of a house to directly inhale and discharge the air in the room, or is mounted outside and through a duct connected to the room. The indoor air is sucked in and discharged, and the separation type is to install an indoor unit on the indoor side and an outdoor unit on the outdoor side to connect the devices separated from each other by installation pipes.

The separate type air conditioner installs the indoor unit indoors as well as the outdoor unit outdoors, and thereafter connects the indoor unit and the outdoor unit with the installation pipe.

The split type air conditioner is made of copper, and the installation pipe surrounds the insulation to prevent heat loss through the installation pipe around the installation pipe.

However, the air conditioner according to the prior art is expensive because the entire installation pipe is made of copper material, and the heat transfer through the installation pipe is large, the thickness of the heat insulating material is thickened to minimize the heat loss of the installation pipe, the cost of the heat insulating material There is an increasing problem.

The present invention has been made in order to solve the above problems of the prior art, it is possible to minimize the material cost of the installation pipe, and to provide an installation pipe of the air conditioner that can minimize the efficiency degradation due to the material cost or heat loss of the insulation. Its purpose is to.

Another object of the present invention is to provide an installation pipe of the air conditioner that can be easily installed by bending a portion of the installation pipe without bending the aluminum pipe.

Still another object of the present invention is to provide an air conditioner installation pipe which can prevent the flow of the installation pipe and prevent corrosion of dissimilar materials by air.

An installation pipe of the air conditioner according to the present invention for solving the above problems is connected to the indoor unit and the indoor unit connecting pipe comprising a copper material; An outdoor unit connector connected to the outdoor unit and including a copper material; It includes an aluminum connector which is connected to the indoor unit connector and the outdoor unit connector and comprises an aluminum material.

The installation pipe of the air conditioner includes a reinforcing member surrounding the connection part of the indoor unit connecting pipe and the aluminum connecting pipe.

The installation pipe of the air conditioner includes a reinforcing member surrounding a connection portion between the outdoor unit connecting pipe and the aluminum connecting pipe.

It further comprises a fixing member for fixing the reinforcing member surrounding.

The installation pipe of the air conditioner is bent at least one of the indoor unit connecting pipe and the outdoor unit connecting pipe.

The aluminum connector is process bonded or brazed by the indoor unit connector and the outdoor unit connector.

It further comprises a spring surrounding at least one of the indoor unit connector, the aluminum connector and the outdoor unit connector.

The aluminum connector may be a plurality of aluminum tubes disposed between the indoor unit connector and the outdoor unit connector, and have a diameter larger than the plurality of aluminum tubes or the plurality of aluminum tubes so that end portions of the plurality of aluminum tubes are inserted. It further comprises a connector having a diameter smaller than the plurality of aluminum tubes to be inserted at the end of the.

The installation pipe of the air conditioner according to the present invention is connected to the indoor unit and the indoor unit connecting pipe made of a copper material; An outdoor unit connector connected to the outdoor unit and made of copper; And a connecting tube communicating the indoor unit connecting tube and the outdoor unit connecting tube, wherein the connecting tube is disposed between the indoor unit connecting tube and the outdoor unit connecting tube and is spaced apart from the plurality of aluminum tubes made of aluminum, and the plurality of aluminum tubes. It includes a flexible tube connecting the tube.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a schematic diagram of a first embodiment of the installation pipe of the air conditioner according to the present invention is installed between the outdoor unit and the indoor unit, Figure 2 is an exploded view of the first embodiment of the installation pipe of the air conditioning according to the present invention, Figure 3 1 is a cross-sectional view showing a connecting portion of the aluminum tube and the copper tube shown in FIG.

The installation pipe of the air conditioner according to the present embodiment, as shown in Figure 1 and 2, the indoor unit connecting pipe 10 is connected to the indoor unit (I) and comprises a copper material; An outdoor unit connector 20 connected to the outdoor unit O and including a copper material; It is connected to the indoor unit connector 10 and the outdoor unit connector 20 includes a connector for communicating the indoor unit connector 10 and the outdoor unit connector 20.

Here, the installation pipe of the air conditioner includes a first installation pipe for guiding the refrigerant passing through the outdoor unit (O) to the indoor unit (I), and a second installation for guiding the refrigerant passing through the indoor unit (I) to the outdoor unit (O). It consists of piping, and a 1st installation pipe and a 2nd installation pipe have a pipe diameter difference.

The indoor unit connecting pipe 10 has one end 11 connected to a refrigerant pipe 2 provided in the indoor unit I by a welding coupling or a fastener.

The outdoor unit connecting pipe 20 has one end 21 connected to the refrigerant pipe 4 provided in the outdoor unit O by a welding joint or a fastener.

The connector is made of a lower cost material than the copper material of the indoor unit connector 10 and the outdoor unit connector 20.

The connector includes an aluminum tube 30 or an aluminum alloy tube containing at least one of manganese, silicon, and copper in aluminum, and will be described as being limited to the aluminum tube 30 for convenience of description below.

The connecting pipe may be composed of a plurality of pipe combinations that are continuous in the longitudinal direction, and part of the pipe may be made of an aluminum tube 30, and the remaining tube may be made of a member of a material different from that of the aluminum tube 30. It is also possible to consist of the aluminum tube 30, it will be described below limited to one consisting of one aluminum tube (30).

The aluminum tube 30 is disposed in a straight line as a whole, and one end 32 is connected to the other end 12 of the indoor unit connecting pipe 10, and the other end 34 is connected to the other end 22 of the outdoor unit connecting pipe 20. do.

The aluminum tube 30 is a process joint or braze welded to the indoor unit connector 10 and the outdoor unit connector 20, in the case of a process joint, the aluminum tube 30 and the indoor unit connector 10 or the outdoor unit connector ( 20) The electric current is applied to the electric heating or induction heating to apply a high frequency, but the aluminum tube 30 is a different material with the indoor unit connecting pipe 10 and the outdoor unit connecting pipe 20, process bonding is most preferred.

 In addition, since the installation pipe of the air conditioner is difficult to deform the aluminum tube 30 compared to the indoor unit connector 10 and the outdoor unit connector 20, the other end 12 and the outdoor unit connector of the indoor unit connector (10). It is preferable to expand or reduce the other end 22 of the 20 to connect with the aluminum tube 30. Hereinafter, the other end 12 of the indoor unit connecting tube 10 and the other end 22 of the outdoor unit connecting tube 20 will be described. It is expanded, and one end 32 of the aluminum tube 30 is inserted into the other end 12 of the indoor unit connecting tube 10 and joined, and the other end 34 of the aluminum tube 30 is the other end of the outdoor unit connecting tube 20. Insert into (22) and join.

The installation pipe of the air conditioner may be bent at least once depending on the position of the indoor unit (I) and the outdoor unit (O), and the aluminum tube 30 has a hardness that is higher than that of the indoor unit connector 10 and the outdoor unit connector 20. Since the bending is not easier than the indoor unit connector 10 and the outdoor unit connector 20, since the deformation may be deformed in the cross section of the inner flow path when bending, the indoor unit connector 10 and the outdoor unit connector if bending is necessary It is preferable to bend (20).

In addition, the installation pipe of the air conditioner includes a reinforcing member (40: hereinafter referred to as a first reinforcing member) surrounding the connecting portion of the indoor unit connecting pipe 10 and the aluminum pipe 30, and the outdoor unit connecting pipe 20 and It further includes a reinforcing member (50: hereinafter referred to as a second reinforcing member) surrounding the connecting portion of the aluminum tube (30).

Here, the first reinforcing member 40 and the second reinforcing member 50 supports the connecting portion such that the connecting portion is not bent or broken when the installation pipe is bent, in particular, the aluminum pipe 30 is bent other than the connecting portion when the installation pipe is bent. As a kind of supporter for protecting the metal, it is preferably made of a rigid body, and may be made of a PVC tube or the like.

In addition, the installation pipe of the air conditioner surrounds the first reinforcing member 40 and is fixed to the indoor unit connecting pipe 10 and the aluminum tube 30 so that the first reinforcing member 40 is connected to the indoor unit connecting pipe 10 and the aluminum. The second fixing member 42 is fixed to the outdoor unit connecting pipe 20 and the aluminum tube 30 while surrounding the first fixing member 42 and the second reinforcing member 50 to be tightly fixed to the tube 30. It further includes a second fixing member 52 for tightly fixing the outdoor unit connecting tube 20 and the aluminum tube 30.

The first fixing member 42 and the second fixing member 52 may be made of a heat shrink tube, a tape or the like which is reduced when heat is applied, or may be made of a Teflon material.

The first fixing member 42 and the second fixing member 52 are formed longer than the first reinforcing member 40 and the second reinforcing member 50, so that the first reinforcing member 40 and the second reinforcing member 50 are formed. It is fixed to surround both ends of

Looking at the operation of the present invention configured as described above are as follows.

First, the refrigerant passing through the outdoor unit during the operation of the air conditioner, in particular, the cooling operation passes through the outdoor unit connecting pipe 20, the aluminum pipe 30 and the indoor unit connecting pipe 10 of the first installation pipe in turn, and then the indoor unit (I). Flows into.

The refrigerant introduced into the indoor unit is evaporated by heat exchange with the indoor air in an evaporator installed in the indoor unit (I).

The refrigerant evaporated from the evaporator of the indoor unit (I) passes through the indoor unit connecting pipe (10), the aluminum pipe (30) and the outdoor unit connecting pipe (20) of the second installation pipe, and then flows into the outdoor unit (O).

The refrigerant introduced into the outdoor unit is compressed by a compressor installed in the outdoor unit (O) and then condensed by being exchanged with outdoor air in the condenser, and then expanded by an expansion device and then introduced into the first installation pipe.

On the other hand, during the circulation of the refrigerant, the refrigerant is less heat transfer to the surroundings than when passing through the outdoor unit connecting pipe 20 or the indoor unit connecting pipe 10 when passing through the aluminum tube 30, the refrigerant is installed piping Less heat loss than if all were copper.

Figure 4 is a schematic diagram of a second embodiment of the installation pipe of the air conditioner according to the present invention is installed between the outdoor unit and the indoor unit, Figure 5 is an exploded view of a second embodiment of the installation pipe of the air conditioner according to the present invention, Figure 6 It is a schematic diagram when the 2nd Example of installation piping of the air conditioner which concerns on this invention was bent.

As shown in Figures 4 to 6, the installation pipe of the air conditioner according to the present embodiment, a plurality of connection pipes are disposed between the indoor unit connecting pipe 10 and the outdoor unit connecting pipe 20 spaced apart from aluminum Aluminum tube 30 '(30 ") made of material, and flexible tube 60 of elastic material disposed between a plurality of aluminum tubes 30' (30"), and other configurations other than the connection tube And since the operation is the same as or similar to the installation piping of the air conditioner of the first embodiment of the present invention, the same reference numerals are used and detailed description thereof will be omitted.

The connecting tube may be provided with two aluminum tubes and one flexible tube 60 may be disposed between the two aluminum tubes, three or more aluminum tubes may be provided, and the flexible tube may be disposed between the aluminum tubes. , One flexible pipe 60 is disposed between two aluminum tubes spaced apart in the longitudinal direction.

That is, the connector is a first aluminum tube (30 ') connected to the indoor unit connector (10); The second aluminum tube 30 ″ connected to the outdoor unit connecting tube 20, the first aluminum tube 30 ′ and the second aluminum tube 30 ″ communicate with each other, and are made of an elastic material or made of a corrugated tube. 60).

The first aluminum pipe 30 ′ and the second aluminum pipe 30 ″ are spaced apart from each other in the longitudinal direction of the installation pipe.

One end 32 'of the first aluminum tube 30' is connected to the other end 12 of the indoor unit connecting pipe 10, and the other end 34 'is connected to one end of the flexible tube 60.

One end 32 ″ of the second aluminum tube 30 ″ is connected to the other end 22 of the outdoor unit connecting tube 20, and the other end 34 ″ is connected to the other end of the flexible tube 60.

That is, the installation pipe of the air conditioner according to the present embodiment is the indoor unit connecting pipe 10, the first aluminum pipe (30 ') and the flexible pipe 60, the second aluminum pipe (30 ") and the outdoor unit connecting pipe (30). ) Are sequentially connected in the longitudinal direction of the installation pipe.

On the other hand, the first reinforcing member (40 ') is surrounded by the junction of the first aluminum pipe (30') and the indoor unit connecting pipe (10).

The second reinforcing member 50 ′ is surrounded by the junction between the second aluminum tube 30 ″ and the outdoor unit connecting tube 20.

The installation pipe of the air conditioner according to the present embodiment is connected to the indoor unit connecting pipe 10, the first aluminum tube 30 'and the flexible tube 60, without bending the flexible tube 60 as shown in FIG. It is also possible to arrange the second aluminum tube 30 ″ and the outdoor unit connecting pipe 30 in the longitudinal direction, and as shown in FIG. 6, the flexible tube 60 is bent to bend the indoor unit connecting pipe 10 and the first unit. It is also possible to arrange the 1st aluminum pipe 30 'orthogonally or inclined with the 2nd aluminum pipe 30 "and the outdoor unit connection piping 30. FIG.

On the other hand, the installation pipe of the air conditioner according to the present embodiment may be installed at least two or more flexible pipes 60, the one flexible pipe and the other flexible pipe can be bent respectively, and the various within the technical scope of the present invention Of course, implementation is possible.

In the installation pipe of the air conditioner according to the present embodiment, the refrigerant passing through the outdoor unit during the cooling operation is connected to the outdoor unit connecting pipe 20, the second aluminum pipe 30 ″, the flexible pipe 60, and the first pipe of the first installation pipe. 1 After passing through the aluminum tube (30 ') and the indoor unit connecting pipe (10) in order to flow into the indoor unit (I).

The refrigerant introduced into the indoor unit is evaporated by heat exchange with the indoor air in an evaporator installed in the indoor unit (I).

The refrigerant evaporated from the evaporator of the indoor unit (I) is connected to the indoor unit connecting pipe (10), the first aluminum pipe (30 ') and the flexible pipe (60), the second aluminum pipe (30 ") of the second installation pipe and the outdoor air. After passing through the pipe 20 in order to flow into the outdoor unit (O).

The refrigerant introduced into the outdoor unit is compressed by a compressor installed in the outdoor unit (O) and then condensed by being exchanged with outdoor air in the condenser, and then expanded by an expansion device and then introduced into the first installation pipe.

On the other hand, when the refrigerant is circulated as described above, the refrigerant passes through the outdoor unit connecting pipe 20 or the indoor unit connecting pipe 10 when passing through the first aluminum pipe 30 'and the second aluminum pipe 30 ″. The amount of heat transfer to the surroundings is small, and the refrigerant has less heat loss than the entire installation pipe is made of copper.

7 is a schematic view of a third embodiment of the installation pipe of the air conditioner according to the present invention installed between the outdoor unit and the indoor unit.

As shown in FIG. 7, the installation pipe of the air conditioner according to the present embodiment is wound around the mounting pipe outer circumference of the first embodiment of the present invention with a tight winding wound, and the other configuration is the first embodiment of the present invention. Since it is the same as one of the embodiments to the third embodiment, the same reference numerals are used and detailed description thereof will be omitted.

The spring 70 is to disperse the stress when the installation pipe is bent so that a part does not sharply bent, it may be arranged only on the outer circumference of the aluminum tube 30, the aluminum tube 30 and the indoor unit connecting pipe (10) ) And the outdoor unit connecting pipe 20, as well as the connection portion can be disposed.

The installation pipe of the air conditioner according to the present embodiment is a copper indoor unit connection pipe which is disposed only on the outer circumference of the aluminum pipe 30 that is easily bent when bent and is not sharply bent. It is preferable not to arrange the spring 70 in the outer circumference of the 10 and the outdoor unit connecting pipe 20 in consideration of the material cost.

8 is a schematic view showing a fourth embodiment of the installation pipe of the air conditioner according to the present invention.

As shown in FIG. 9, the installation pipe of the air conditioner according to the present embodiment includes a plurality of aluminum pipes 30A and 30B in which a connection pipe is disposed between the indoor unit connection pipe 10 and the outdoor unit connection pipe 20. ) And a plurality of diameters larger than the plurality of aluminum tubes 30A and 30B to insert the ends of the plurality of aluminum tubes 30A and 30B, or inserted into the ends of the plurality of aluminum tubes 30A and 30B. Connector 90 having a diameter smaller than the two aluminum tubes 30A and 30B.

The installation pipe of the air conditioner according to the present embodiment is to cut one of the plurality of aluminum pipes cut after cutting the aluminum pipe 30 of the first embodiment of the installation pipe of the air conditioner, cut aluminum pipe 30A ) And the shortened aluminum tube (30B) through the connector (90).

Here, the connector 90 is made of an aluminum material of the same material to facilitate the joining of the plurality of aluminum tubes 30A, 30B.

The connector 90 and the plurality of aluminum tubes 30A and 30B are joined by process joining or brazing welding.

9 is a schematic view showing a fifth embodiment of the installation pipe of the air conditioner according to the present invention.

In the installation pipe of the air conditioner according to the present embodiment, after cutting the aluminum pipe (30A) 30B of the installation pipe of the air conditioner 1st embodiment, the additional aluminum pipe (30C) is disposed therebetween, Each of the aluminum tubes 30A and 30B and the additional aluminum tube 30C are connected via the connectors 100 and 110.

 Here, the connector 100, 110 is made of aluminum material of the same material to facilitate bonding with the cut aluminum pipe (30A) 30B and the additional aluminum pipe (30C).

The connectors 100 and 110 and the plurality of aluminum tubes 30A, 30B and 30C are joined by process bonding or brazing welding.

That is, the installation pipe of the air conditioner according to the present embodiment is lengthened by the additional aluminum pipe 30C, the length is long, and the aluminum pipe cut the additional aluminum pipe 30C through the connector 100, 110. It is possible to easily join the 30A and 30B.

In the installation pipe of the air conditioner of the present invention configured as described above, the indoor unit connecting pipe and the outdoor unit connecting pipe communicates between the indoor unit connecting pipe and the outdoor unit connecting pipe and an aluminum connector including an aluminum material is disposed, the installation pipe If the whole is made of a copper pipe is more inexpensive, there is an advantage that the connection to the indoor unit and outdoor unit is easier than the whole installation pipe is made of aluminum pipe.

In addition, the installation pipe of the air conditioner of the present invention includes a reinforcing member surrounding the connection portion of the indoor unit connector and the aluminum connector and a reinforcement member surrounding the connection portion of the outdoor unit connector and the aluminum connector when bending the installation pipe. There is an advantage in that the connection portion of the aluminum connector can be prevented from being sharply broken.

In addition, the installation pipe of the air conditioner of the present invention further includes a fixing member for surrounding and fixing the reinforcing member to prevent the flow of the reinforcing member and the installation pipe, and the connection portion between the outdoor unit connecting pipe and the aluminum pipe by air and There is an advantage that can prevent corrosion of the connection of the indoor unit connector and the aluminum tube.

In addition, the installation pipe of the air conditioner of the present invention, the aluminum connector is a process bonded or brazed welded to the indoor unit connector and the outdoor unit connector, the aluminum connector can be easily joined to the indoor unit connector and the outdoor unit connector. There is an advantage.

In addition, since the installation pipe of the air conditioner of the present invention is at least one of the indoor unit connection pipe and the outdoor unit connection pipe is bent, it is possible to prevent the deformation of the cross section of the flow path that may occur when bending the aluminum connector, There is an advantage that the installation pipe can be easily installed according to the location of the indoor unit and the outdoor unit.

In addition, the installation pipe of the air conditioner of the present invention further includes a spring surrounding the aluminum connector,

In addition, the installation pipe of the air conditioner of the present invention is a plurality of aluminum pipes, the aluminum connector is disposed between the indoor unit connector and the outdoor unit connector, and the plurality of aluminum tubes so that the end of each of the plurality of aluminum tube is inserted. Including a connector having a larger diameter or a diameter smaller than the plurality of aluminum tubes to be inserted at the ends of the plurality of aluminum tubes, there is an advantage that the aluminum connector can easily increase or decrease the length.

Claims (9)

An indoor unit connector connected to the indoor unit and including a copper material; An outdoor unit connector connected to the outdoor unit and including a copper material; Installation pipe of the air conditioner is connected to the indoor unit connector and the outdoor unit connector and comprises an aluminum connector comprising an aluminum material. The method of claim 1, The installation pipe of the air conditioner is installed pipe of the air conditioner including a reinforcing member surrounding the connection of the indoor unit connecting pipe and the aluminum connector. The method of claim 1, The installation pipe of the air conditioner is installed pipe of the air conditioner including a reinforcing member surrounding the connection of the outdoor unit connecting pipe and the aluminum connector. The method of claim 2 or 3, Installation pipe of the air conditioner further comprises a fixing member for surrounding the reinforcing member fixed. The method of claim 1, The installation pipe of the air conditioner is the installation pipe of the air conditioner bent at least one of the indoor unit connection pipe and the outdoor unit connection pipe. The method of claim 1, The aluminum connector is the installation pipe of the air conditioner is a process junction or brazing coupled to the indoor unit connector and the outdoor unit connector. The method of claim 1, And a spring surrounding at least one of the indoor unit connector, the aluminum connector, and the outdoor unit connector. The method of claim 1, The aluminum connector may be a plurality of aluminum tubes disposed between the indoor unit connector and the outdoor unit connector, and have a diameter larger than the plurality of aluminum tubes or the plurality of aluminum tubes so that end portions of the plurality of aluminum tubes are inserted. And a connector having a diameter smaller than that of the plurality of aluminum tubes so as to be inserted into an end portion of the air conditioner. An indoor unit connector connected to the indoor unit and made of copper; An outdoor unit connector connected to the outdoor unit and made of copper material;  And a connector for communicating the indoor unit connector and the outdoor unit connector, The connecting pipe is installed between the indoor unit connecting pipe and the outdoor unit connecting pipe and the installation pipe of the air conditioner including a plurality of aluminum tubes made of aluminum material and a flexible pipe connecting the plurality of aluminum tubes.

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