KR100906295B1 - Piping of air conditioner, and apparatus and method for manufacturing the same - Google Patents

Abstract

The present invention relates to an air conditioner piping material having a heat insulating material packaged outside the refrigerant pipe, and an apparatus and method for manufacturing the same, wherein the product size is increased by inserting the refrigerant pipe into the tubular heat insulating material by packaging the plurality of refrigerant pipes with a single sheet of heat insulating material. It is an object of the present invention to provide an air conditioner piping material, a manufacturing apparatus and a method thereof, which can eliminate waste of cost and productivity.

Air conditioner piping material of the present invention for achieving the above object, two or more refrigerant pipes arranged in parallel spaced apart from each other at a predetermined interval; And a heat insulating material wrapped around the plurality of refrigerant pipes so as to maintain a predetermined distance from each other, and formed by bonding a sheet-shaped foamed synthetic resin to each other by joining the inner surface portion between the widthwise both ends and the refrigerant pipe.

Air Conditioner, Refrigerant Pipe, Heat Insulator, Heater, Roll Forming Machine

Description

Air Conditioning Piping Material, Manufacturing Apparatus and Manufacturing Method {PIPING OF AIR CONDITIONER, AND APPARATUS AND METHOD FOR MANUFACTURING THE SAME}

The present invention relates to an air conditioner piping material having a heat insulating material packaged outside the refrigerant pipe, and a device and method for manufacturing the same, more specifically, a sheet-shaped heat insulating material is bonded to a plurality of refrigerant pipes to be accommodated inside the refrigerant pipe to a conventional tubular heat insulating material The present invention relates to an air conditioner piping material and a manufacturing apparatus and method thereof capable of increasing productivity, reducing manufacturing cost, and miniaturizing a product size compared to the insert.

In general, an air conditioner installs a main body that supplies cold air indoors and a refrigerant condenser (outdoor unit) is installed outside the building. Accordingly, there is a need for piping for refrigerant circulation between the main body and the outdoor unit, a typical air conditioner piping material used for this purpose is shown in FIG.

As shown in FIG. 1, a conventional air conditioner piping material has a refrigerant pipe (10, 11) forming a refrigerant circulation pipe in a protection tube (20) made of a material and a structure having a certain strength to maintain a shape, while easily bending a corrugated pipe. It is built. Usually, two refrigerant pipes 10 and 11 having different thicknesses are provided to reciprocate the refrigerant, and the heat insulating material 12 and 13 made of an insulating material such as a foamed synthetic resin is packed outside the refrigerant pipes 10 and 11. . In addition, the power line for outdoor unit operation is often piped together in the protective tube (20).

Conventionally, the heat insulators 12 and 13 are formed in a preformed tube form, and the refrigerant pipes 10 and 11 are inserted into the heat insulators 12 and 13, and then inserted into the protection tube 20. The piping material was produced in a manner. However, since the lengths of the refrigerant pipes 10 and 11 and the heat insulating materials 12 and 13 become very long in the actual pipe material manufacturing process, the inner diameter of the heat insulating materials 12 and 13 is somewhat higher than the outer diameter of the refrigerant pipes 10 and 11. It was possible to insert smoothly only when it was big. As a result, the sizes of the heat insulating materials 12 and 13 have been increased more than necessary, resulting in a waste of material costs.

In addition, the increase in the size of the heat insulating material (12, 13) is difficult in the process of inserting the refrigerant pipe (10, 11) packed with the heat insulating material (12, 13) to the protective tube 20, a large inner diameter for smooth insertion In other words, the large size of the protective tube 20 is used, so the material cost of the protective tube 20 itself is high, causing the problem that the overall size of the manufactured piping material is also increased.

In addition, in the related art, since the heat insulating materials 12 and 13 suitable for the sizes of the refrigerant tubes 10 and 11 having different thicknesses have to be separately provided, manufacturing costs are further increased, and each refrigerant tube 10 and 11 is individually provided. After the insertion into the heat insulator (12, 13) had to be inserted into the protective tube 20 again, the product productivity was bound to fall.

The present invention is to solve the above problems, an object of the present invention is to increase the size of the product by inserting the refrigerant pipe in the tubular insulation by packaging two or more refrigerant pipes in a single sheet of heat insulating material, waste of cost To provide an air conditioner piping material that can reduce productivity loss.

According to the present invention for achieving the above object, at least two refrigerant pipes arranged in parallel spaced apart from each other; And wrapped around the plurality of refrigerant pipes to maintain a predetermined distance from each other, the air-conditioning piping material including a heat insulating material formed by bonding the inner surface portion between the width direction both ends and the refrigerant pipe with each other in the sheet-shaped foam synthetic resin.

In another aspect, the present invention, the refrigerant pipe supply means for supplying two or more refrigerant pipes in parallel; Insulation material supply means for supplying a sheet-shaped insulation to be transported in parallel along the plurality of refrigerant pipes; Deforming means for drying the heat insulating material in the width direction while passing the coolant pipe and the heat insulating material together to wrap around the coolant pipe; And it provides an air conditioner piping material manufacturing apparatus comprising a joining means for joining the inner surface portion between the width direction both ends of the heat insulating material surrounding the refrigerant pipe and the refrigerant pipe.

In the air conditioner piping material manufacturing apparatus, the joining means is provided with a heat supply for supplying heat to heat the joint of the heat insulating material, a molding groove for supporting the portion of the outer surface of the heat insulating material in which the coolant pipe is located and the forming protrusions for supporting the joint. It may be configured to include a roll forming machine having at least one forming roller to press-bond the joint of the heat insulating material heated by the heat supply.

In this case, the heat supplier may be made of a heater built in the forming roller.

In addition, the manufacturing apparatus may be configured to further include a cutting machine which is provided at the rear end of the bonding means to divide the portion between the refrigerant pipes of the heat insulating material so that the heat insulating material is packaged for each refrigerant pipe.

According to another aspect of the invention, the step of supplying a plurality of refrigerant pipe and the heat insulating material of the sheet form to be transported in parallel; Drying the heat insulating material in a width direction to deform the heat insulating material to surround the refrigerant pipe; And bonding an inner surface portion between the width direction both ends of the heat insulating material surrounding the coolant pipe and the coolant pipe.

The manufacturing method may further include dividing a portion between the refrigerant pipes of the heat insulating material such that each of the refrigerant pipes is packaged with the heat insulating material.

According to the present invention as described above, by wrapping the plurality of refrigerant pipes wrapped in a single sheet-shaped heat insulating material and bonded to each other, it is not necessary to provide a separate tube-shaped heat insulating material for each refrigerant pipe of various specifications, each of the heat insulating material in the tubular heat insulating material There is no need to insert the air conditioning piping material manufacturing process can increase the productivity and reduce the cost. In addition, since the insulation and the protection tube are formed in a minimized size in close contact with each other without having a large size for the insertion of the refrigerant tube, there is an effect of preventing the flow of the refrigerant tube and miniaturizing the size of the piping material.

Optionally, since it is possible to simultaneously manufacture a plurality of piping materials packed with heat insulating material for each refrigerant pipe through one line by cutting the heat insulating material portions between each refrigerant pipe, there is an effect that can significantly improve the productivity of the air conditioner piping material.

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 shows an embodiment of the air conditioner piping material according to the present invention, a plurality of refrigerant pipes 10, 11 and the power line 30 is inserted into the heat insulating material 40 inside the protection tube 20 is inserted will be.

The protective tube 20 is a conventional, as shown in the corrugated tube of synthetic resin material to maintain the form against the external force to protect the refrigerant pipe (10, 11) and the power supply line 30 and to bend easily during piping It is preferably made, but is not limited to this, various materials and forms can be used according to the construction conditions, in some cases this protective tube 20 may not be provided.

The refrigerant pipes 10 and 11 form a refrigerant circulation of the air conditioner, the refrigerant pipe 10 for transferring the vaporized refrigerant from the evaporator of the air conditioner to the outdoor unit and the refrigerant pipe 11 for transferring the condensed refrigerant from the outdoor unit back to the air conditioner main body. ), Etc., and in some cases, two or more refrigerant pipes 10 and 11 may be provided.

The heat insulating material 40 is made of a material having a suitable thickness used as a conventional heat insulating material such as a foamed synthetic resin to block the heat transfer between each of the refrigerant pipes (10, 11) and the outside, as shown in the prior art It is not made of an individual wrapping tube form, one sheet-shaped heat insulating material 40 is bonded in a form surrounding the plurality of refrigerant pipes (10, 11). As shown, when a pair of refrigerant pipes 10 and 11 are provided, the heat insulating material 40 surrounds the refrigerant pipes 10 and 11 on both sides, but the width direction of the refrigerant pipes 10 and 11 does not contact each other. The inner surfaces between the both ends and the two refrigerant pipes 10 and 11 are joined to each other to have a cross-sectional shape of approximately "8" shaped to surround both refrigerant pipes 10 and 11 without flow. On the other hand, the heat insulating material 40 may be made of a metal thin plate made of aluminum or the like bonded to the outer surface.

The piping material having such a structure is not inserted the refrigerant pipes 10 and 11 into the tubular heat insulating material as in the related art, but is wrapped in one sheet heat insulating material and bonded to the outside of the plurality of refrigerant pipes 10 and 11, so that each refrigerant pipe ( According to the specifications of 10 and 11, it is not necessary to manufacture the tubular heat insulating material 40 of various sizes, and it is not necessary to insert each refrigerant pipe 10 and 11 separately into each heat insulating material 40 formed in a tubular shape. Accordingly, the manufacturing process can be simplified to increase productivity. In particular, the heat insulating material 40 is bonded to the refrigerant pipes 10 and 11 in close contact with the refrigerant pipes 10 and 11, compared to the conventional method in which the size of the heat insulating material is larger than necessary to secure the inner diameter for inserting the refrigerant pipes 10 and 11. As a result, the flow of the refrigerant pipes 10 and 11 can be prevented, and the outer size of the heat insulating material 40 can be reduced. This is also desirable in terms of material saving of the heat insulating material 40, and the refrigerant pipes 10 and 11 packed with the heat insulating material 40 can be more easily inserted into the protective pipe 20 having a smaller inner diameter, so that the size of the air conditioning piping material It can be miniaturized.

The apparatus and method for manufacturing the air conditioner piping material of the present invention as described above will be described.

Figure 3 shows an embodiment of the manufacturing apparatus according to the invention as a whole, Figures 4 to 6 are the refrigerant pipe aligner 140, the heat insulating material transformer 150 and the heat supply 160, which is the main part of the present invention, respectively. ), And a roll molding machine 170 is a cross-sectional view.

As shown in the air conditioner piping material manufacturing apparatus of the present invention, the refrigerant pipe supply roll (110, 120) and the aligner 140, which is a means for supplying the plurality of refrigerant pipes (10, 11) to be transported in parallel, and the heat insulating material Insulation material 40 to surround the refrigerant pipe (10, 11) and the both sides of the refrigerant pipe (10, 11) to be transported together with the heat insulating material supply roll 130 and the guide roller, the means for supplying to be transported in parallel along the refrigerant pipe (10, 11) ) And the heat insulator (150) and the heat insulator (150), which is a means for bonding the dried insulation (40) to be in close contact with the refrigerant pipes (10, 11) to form a dried shape in the width direction; , The cutting unit 180 divides the portion between the refrigerant pipes 10 and 11 of the bonded heat insulating material 40.

The coolant pipe aligner 140 is to ensure that the plurality of coolant pipes (10, 11) transferred from each of the supply rolls (110, 120) are maintained at a predetermined interval from each other, the plurality of alignment rollers (141a, 141b is installed in a group, and a plurality of alignment grooves 143 and 144 through which the refrigerant pipes 10 and 11 pass through the two alignment rollers 141a and 141b constituting each group are illustrated. It is not limited to. For example, a structure in which a deeper alignment groove is formed may be formed such that the coolant pipes 10 and 11 pass only through one side of the alignment rollers 141a and 141b.

The sheet-shaped heat insulating material 40 supplied by the heat insulating material supply roll 130 is formed in a band shape having an appropriate width to cover the plurality of coolant pipes 10 and 11, and the coolant pipe 10 through the guide roller. 11) is transported in parallel along the lower path.

The transducer 150 may be formed of various guide structures for changing the width direction both sides of the heat insulating material 40 to be wrapped to surround the refrigerant pipe (10, 11), in the embodiment shown in the tubular body having a substantially circular cross section It was formed in the form, it was exemplified that the both sides in the width direction of the heat insulating material 40 is rolled upward while passing through the heat insulating material 40 in the radially outer side, the refrigerant pipe (10, 11) in the radially inner side. The inlet of the transducer 150 is formed to be inclined upwardly so that the heat supplied by the heat supplier 160 can be smoothly transferred to the junction of the heat insulator 40.

The heat supply unit 160 is an example consisting of a hot air fan 160 for supplying high temperature air through the inlet portion of the transducer 150 to heat the heat insulating material (40).

The roll forming machine 170 presses the heat insulating material 40 that is formed to surround the refrigerant pipes 10 and 11 by passing through the transducer 150 to closely adhere to the refrigerant pipes 10 and 11, and at the same time, the heat insulating material 40. Joining portions, i.e., the inner surface portions between the widthwise both ends and the refrigerant pipes 10 and 11, are provided with a plurality of forming rollers 171a and 171b provided in a group as shown in the drawing to form a group. Molding grooves 173 and 174 for supporting portions where the respective refrigerant pipes 10 and 11 are positioned among the outer surfaces of the heat insulating material 40 on at least one side of the forming rollers 171a and 171b and the forming protrusions 175 for supporting the joints. ) Is formed.

The cutting machine 180 is optional, and is made of a structure provided with a cutter 181 to divide the portion between the refrigerant pipe (10, 11) of the bonded heat insulating material 40 between the transfer, preferably if necessary Only the cutter 181 is configured to be lifted up and down so as to selectively cut.

The process by which the piping material is manufactured by the apparatus of this invention comprised as mentioned above is demonstrated.

The refrigerant pipes 10 and 11 and the heat insulating material 40 supplied from the coolant pipe supply rolls 110 and 120 and the heat insulating material supply roll 130 are transferred in parallel to each other. As described above, the heat insulating material 40 is wound around the refrigerant pipes 10 and 11, and when the heat insulating material 40 enters into the transducer 150, the heat insulating material 40 is heated to an appropriate junction temperature by the heat supply 160. do.

While conveying in this state and passing through the roll molding machine 170, as shown in FIG. 6, the heat insulating material 40 is brought into close contact with the outer circumferential surfaces of the refrigerant pipes 10 and 11, and both ends and the inner joining portions are fused to each other to form approximately 8. It will have a cross-sectional shape in the shape of a child.

As described above, the plurality of refrigerant pipes 10 and 11 packaged and integrated together by one heat insulating material 40 are themselves or inserted into the protection pipe 20 as described above to form a piping material for an air conditioner.

In addition, if necessary, the cutting machine 180 may divide a portion between each of the refrigerant pipes 10 and 11 and use the separate refrigerant pipes 10 and 11 in which the heat insulating material 40 is packed. In this case, since a plurality of refrigerant pipes 10 and 11 packed with the heat insulating material 40 can be produced at the same time through one line, the refrigerant pipes 10 and 11 are individually inserted into the heat insulating material 40 to be packed. In comparison with the conventional case, productivity can be significantly improved.

Meanwhile, in the above-described embodiment, the bonding means of the heat insulator 40 is exemplified as a heating / pressing method by the heat supply unit 160 and the roll molding machine 170. However, in some cases, the bonding means using the adhesive may be formed. have. In addition, when the heating / pressure bonding method as illustrated, the heat supply 160 may be configured as a separate hot air blower 160 as described above, the forming roller 171a of the roll forming machine 170, It may be made of a heater built in 171b). In this case, there is an advantage that the overall device structure becomes simpler.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a perspective view showing a conventional air conditioning piping material.

2 is a perspective view showing an embodiment of an air conditioner piping material according to the present invention.

Figure 3 shows an embodiment of the air conditioner piping material manufacturing apparatus according to the present invention.

4 is a cross-sectional view along the line AA ′ showing the aligner in the manufacturing apparatus shown in FIG. 3.

FIG. 5 is a cross-sectional view taken along line BB ′ illustrating the heat supply and the transducer in the manufacturing apparatus shown in FIG. 3.

6 is a cross-sectional view taken along the line C-C 'showing the roll molding machine in the manufacturing apparatus shown in FIG.

Claims (7)

delete Refrigerant pipe supply means for supplying two or more refrigerant pipes (10, 11) in parallel; Insulation material supply means for supplying a sheet-shaped heat insulating material 40 to be transported in parallel along the plurality of refrigerant pipes (10, 11); Deforming means for drying the heat insulating material 40 in the width direction while passing through the refrigerant pipes (10, 11) and the heat insulating material (40) to wrap around the refrigerant pipe (10, 11); And Air conditioner piping material manufacturing apparatus comprising a joining means for joining the inner surface portion between the width direction both ends of the heat insulating material 40 surrounding the refrigerant pipe (10, 11) and the refrigerant pipe (10, 11). The method of claim 2, The joining means may include a heat supply unit 160 for supplying heat to heat the joint of the heat insulator 40, and a molding recess for supporting a portion where the coolant pipes 10 and 11 are located among the outer surfaces of the heat insulator 40. 173, 174 and at least one forming roller (171a, 171b) formed with a forming protrusion 175 for supporting the joint portion, the roll for pressing the joint of the heat insulating material 40 heated by the heat supply 160 Air conditioner piping material manufacturing apparatus comprising a molding machine (170). The method of claim 3, The heat supply unit 160 is an air conditioning piping material manufacturing apparatus, characterized in that consisting of a heater built in the forming rollers (171a, 171b). The method according to any one of claims 2 to 4, A cutting machine 180 is provided at the rear end of the joining means and divides a portion between the refrigerant pipes 10 and 11 of the heat insulating material 40 so that the heat insulating material 40 is packed for each refrigerant pipe 10 and 11. Air conditioning plumbing material manufacturing apparatus further comprising. Supplying a plurality of refrigerant pipes (10, 11) and the heat insulating material (40) in sheet form to be transferred in parallel; Drying the heat insulating material 40 in the width direction to deform the heat insulating material 40 to surround the refrigerant pipes 10 and 11; And A method of manufacturing an air conditioner piping material comprising the step of joining the inner surface portion between the width direction both ends of the heat insulating material (40) surrounding the refrigerant pipe (10, 11) and the refrigerant pipe (10, 11). The method of claim 6, And dividing a portion between the refrigerant pipes (10, 11) of the heat insulating material (40) so that the heat insulating material (40) is packed for each of the refrigerant pipes (10, 11).

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