KR100903261B1 - Piping for air conditioner - Google Patents

Piping for air conditioner Download PDF

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Publication number
KR100903261B1
KR100903261B1 KR1020080038325A KR20080038325A KR100903261B1 KR 100903261 B1 KR100903261 B1 KR 100903261B1 KR 1020080038325 A KR1020080038325 A KR 1020080038325A KR 20080038325 A KR20080038325 A KR 20080038325A KR 100903261 B1 KR100903261 B1 KR 100903261B1
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South Korea
Prior art keywords
heat insulating
power line
piping
air conditioner
refrigerant
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KR1020080038325A
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Korean (ko)
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성기천
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성기천
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/26—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Insulation (AREA)

Abstract

A piping for an air-conditioner is provided to increase the productivity and to miniaturize a product in order to insert a coolant pipe and a power line into a small diameter protecting duct inside. A piping for an air-conditioner comprises two or more coolant pipes(110,120), a heat insulating member(130), a power line(140) and a protecting duct(150). The two or more coolant pipes is arranged to be separated as much as the fixed interval in a row. The heat insulating member is made of synthetic resin foam and surrounds the coolant pipe. Both end parts(131,132) of the heat insulating member are separated each other and a line groove(133) is formed between the both end parts. The power line is inserted along the line groove. The coolant pipe surrounded with the heat insulating member and the power line are inserted inside the protecting duct.

Description

에어컨용 배관재 {PIPING FOR AIR CONDITIONER} Piping material for air conditioner {PIPING FOR AIR CONDITIONER}

본 발명은 냉매관 외부에 단열재가 포장된 에어컨용 배관재에 관한 것으로, 보다 상세하게는 단열재의 일측에 전원선이 수용되는 공간을 확보하여 보다 작은 사이즈의 보호관 내부에 용이하게 배관 및 전원선을 삽입할 수 있는 에어컨용 배관재에 관한 것이다. The present invention relates to a plumbing material for an air conditioner in which a heat insulating material is packaged outside a refrigerant pipe, and more particularly, a pipe and a power wire are easily inserted into a protective tube of a smaller size by securing a space in which a power line is accommodated on one side of the heat insulating material. It relates to the piping material for air conditioners which can be done.

일반적으로 에어컨은 냉풍을 공급하는 본체를 실내에 설치하고 냉매 응축기(실외기)를 건물 외부에 설치하게 된다. 이에 따라 본체와 실외기 간에 냉매 순환을 위한 배관이 필요하게 되는데, 종래의 통상적인 에어컨용 배관재는 냉매 순환로를 이루는 두 개의 냉매관이 각각 단열재 튜브로 감싸진 상태로 주름관 등의 보호관 내부에 병렬로 삽입된 구조로 이루어진다. 또한, 보호관 내부에 실외기 작동을 위한 전원선도 함께 배선된다. 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, piping for refrigerant circulation is required between the main body and the outdoor unit. In the conventional air conditioner piping material, two refrigerant pipes constituting the refrigerant circulation path are respectively inserted in parallel inside a protection tube such as a corrugated pipe with two refrigerant pipes wrapped in a heat insulating material tube. Consists of a structure. In addition, a power line for operating the outdoor unit is also wired inside the protective tube.

이러한 종래의 배관재는 별도의 단열재 튜브에 각각 냉매관을 삽입한 다음 이를 보호관 내부로 삽입하는 방식으로 제조해야했기 때문에 생산성이 떨어졌다. 또한, 냉매관의 사이즈 별로 다른 크기의 단열재 튜브를 별도로 구비해야 하고, 냉매관의 용이한 삽입을 위해서는 단열재 튜브의 크기가 필요 이상으로 증가되며, 이로 인해 보호관의 크기도 증가되어 재료 비용이 낭비되는 문제점도 있었다.The conventional plumbing material had a low productivity because it had to be manufactured by inserting a refrigerant pipe into a separate insulation tube and then inserting the refrigerant pipe into the protective tube. In addition, the insulation tube of a different size must be separately provided for each size of the refrigerant tube, and the size of the insulation tube is increased more than necessary for easy insertion of the refrigerant tube, thereby increasing the size of the protection tube, which wastes material costs. There was also a problem.

이러한 문제를 해결하기 위하여 본원 출원인에 의해 도 1에 도시된 바와 같은 에어컨용 배관재(특허출원 제2007-140448호)가 제시된 바 있다. 이 에어컨용 배관재는, 서로 소정 간격 이격되어 병렬 배치된 냉매관(40, 50)을 서로 일정 간격을 유지하도록 단열재(20)로 감싸되, 이 단열재(20)가 일방향으로 긴 시트 형의 발포 합성수지를 폭방향 양단부와 냉매관(40, 50) 사이의 내측면 부분을 서로 접합하여 이루어진 것이다. 이러한 배관재는 복수의 냉매관(40, 50)을 하나의 시트형 단열재(20)로 감싸 접합하는 방식으로 포장함으로써, 냉매관의 규격별로 별도의 튜브형 단열재를 구비할 필요가 없고, 튜브형 단열재에 각각 냉매관을 삽입할 필요도 없어 생산성이 향상되고 제조비용이 절감되는 등의 효과가 있다. In order to solve this problem, the applicant for the air conditioner piping (patent application No. 2007-140448) as shown in Figure 1 has been presented by the applicant. The air conditioner piping material is wrapped with a heat insulating material 20 so as to maintain a predetermined distance between the refrigerant pipes 40, 50 arranged in parallel to be spaced apart from each other by a predetermined interval, the heat insulating material 20 is a sheet-like foamed synthetic resin long in one direction Is formed by joining the inner surface portions between the widthwise both ends and the refrigerant pipes 40 and 50 with each other. These piping materials are packaged in a manner of wrapping and joining the plurality of refrigerant pipes 40 and 50 with one sheet-type heat insulating material 20, there is no need to provide a separate tubular heat insulating material according to the size of the refrigerant pipe, each refrigerant in the tubular heat insulating material There is no need to insert a tube, thereby improving productivity and reducing manufacturing costs.

그런데, 도시한 바와 같이 에어컨용 배관재의 보호관(10) 내부에는 전원선(30)도 함께 삽입되는데, 실제 제조과정에서 단열재(20)의 접합이 이루어진 후에는 도 2의 (a)에 도시된 바와 같이 단열재(20)가 대략 "8"자 형태의 단면 형상을 갖게 되고, 이를 보호관(10) 내부에 삽입하기 위해서는 도 2의 (b)에 도시된 바와 같이 각 냉매관(40, 50)을 감싸는 양측 부분이 서로 밀착되도록 가압하여 보호관(10)의 내경에 맞는 형태로 만들어 삽입하게 된다. By the way, the power line 30 is also inserted into the protective tube 10 of the piping material for the air conditioner, as shown in Figure 2 (a) after the bonding of the heat insulating material 20 in the actual manufacturing process. As described above, the heat insulating material 20 has a cross-sectional shape having a shape of approximately “8”, and in order to insert it into the protective pipe 10, the refrigerant pipes 40 and 50 may be enclosed as shown in FIG. Both sides are pressed to be in close contact with each other to make a shape that fits the inner diameter of the protective tube 10 is inserted.

그러나, 종래의 에어컨용 배관재는, 단열재(20) 주변에 전원선(30)이 수용될 적절한 공간이 구비되어 있지 않기 때문에, 냉매관(40, 50)이 삽입된 단열재(20)와 전원선(30)을 보호관(10) 내부에 삽입하는 작업이 용이하지 못하고, 전원선(30) 수용공간을 확보하기 위해 보호관(10)의 사이즈를 필요 이상으로 크게 해야 하는 문제점이 있었다. However, in the conventional air conditioner piping material, since the proper space for accommodating the power supply line 30 is not provided around the heat insulating material 20, the heat insulating material 20 and the power supply line (with which the refrigerant pipes 40 and 50 are inserted) are provided. The operation of inserting 30 into the protective tube 10 is not easy, and there is a problem in that the size of the protective tube 10 should be made larger than necessary to secure the space for accommodating the power line 30.

본 발명은 전술한 바와 같은 문제점을 해결하기 위한 것으로, 단열재의 일측에 전원선이 수용되는 공간을 확보하여 보다 작은 사이즈의 보호관 내부에 용이하게 배관 및 전원선 삽입이 가능하도록 한 에어컨용 배관재를 제공하는 것에 목적이 있다. The present invention is to solve the problems described above, to provide a piping material for the air conditioner to ensure the space in which the power line is accommodated on one side of the heat insulator so that the piping and the power line can be easily inserted into the protective tube of a smaller size. The purpose is to.

상기한 목적을 달성하기 위한 본 발명에 따르면, 서로 소정 간격 이격되어 병렬 배치된 둘 이상의 냉매관; 일방향으로 긴 시트 형의 발포합성수지를 상기 복수의 냉매관을 감싸도록 말아 폭방향 양단부와 냉매관 사이의 내측면 부분을 서로 접합하되, 양단부가 서로 이격되어 그 사이에 배선홈이 형성된 단열재; 상기 배선홈을 따라 삽입 배치되는 전원선; 및 상기 단열재가 포장된 냉매관과 전원선이 내부에 삽입되는 보호관을 포함하는 에어컨용 배관재가 제공된다.According to the present invention for achieving the above object, at least two refrigerant pipes arranged in parallel spaced apart from each other; A heat insulating member having a sheet-like foamed synthetic resin long in one direction to wrap the plurality of refrigerant pipes, and joining inner side portions of the width direction both ends with the refrigerant pipes to each other, the both ends being spaced apart from each other; A power line inserted into the wiring groove; And it is provided with a piping material for the air conditioner including a refrigerant pipe packed with the heat insulating material and a protective tube inserted therein.

상기한 본 발명의 에어컨용 배관재에서, 상기 단열재는 상기 배선홈이 외부를 향하도록 접힌 상태로 연접된 외측면이 서로 접합되는 것이 바람직하다. In the above piping material for air conditioners of the present invention, the heat insulating material is preferably bonded to the outer surface joined in a folded state so that the wiring grooves to the outside.

상기한 바와 같은 본 발명에 의하면, 전원선이 배선홈을 따라 삽입된 상태로 보호관 내부에 수용되므로, 상대적으로 내경이 작은 보호관의 내부에도 단열재가 포장된 냉매관(1차포장물)과 전원선을 보다 용이하게 삽입할 수 있어 생산성이 향상되고 제품의 외경 사이즈를 보다 소형화할 수 있으며, 동일 직경의 냉매관을 감쌀 때 소요되는 단열재의 폭을 줄일 수 있으므로 재료 비용을 절감할 수 있는 효과가 있다. According to the present invention as described above, since the power line is accommodated in the protection tube in the state inserted along the wiring groove, the refrigerant pipe (primary packaging) and the power line in which the heat insulating material is packaged even inside the protection tube having a relatively small inner diameter. It can be inserted more easily, productivity is improved, and the outer diameter of the product can be made smaller, and the width of the heat insulating material required when wrapping the same diameter refrigerant pipe can be reduced, thereby reducing the material cost.

또한, 단열재를 접어 외측면을 서로 접합하여 1차포장물의 단면 형태가 대략 둥근 형태가 되도록 함으로써, 1차포장물을 보호관 내부에 더욱 용이하게 삽입할 수 있어 생산성이 더욱 향상되는 효과가 있다. In addition, by folding the heat insulating material and bonding the outer surfaces to each other so that the cross-sectional shape of the primary package is approximately rounded, the primary package can be more easily inserted into the protective tube, thereby improving productivity.

상술한 본 발명의 목적, 특징 및 장점은 다음의 상세한 설명을 통하여 보다 분명해질 것이다. 이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명한다.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.

도 3은 본 발명에 따른 에어컨용 배관재의 일실시예를 도시한 것으로, 이 배관재는 보호관(150)의 내부에 단열재(130)가 포장된 복수의 냉매관(110, 120)과 전원선(140)이 삽입된 것이다.Figure 3 shows an embodiment of the piping material for the air conditioner according to the present invention, the piping material is a plurality of refrigerant pipes (110, 120) and the power line 140, the heat insulating material 130 is packaged inside the protection pipe 150. ) Is inserted.

상기 보호관(150)은 통상의 것으로, 도시된 바와 같이 외력에 대해 형태를 유지하여 내부의 냉매관(110, 120)과 전원선(140)을 보호하고 배관시 굴곡이 용이하도록 합성수지 재질의 주름관으로 이루어지는 것이 바람직하나, 이것으로 한정되는 것은 아니며, 설치조건에 따라 다양한 재질과 형태의 것이 사용될 수 있다. The protective tube 150 is a conventional, as shown in the corrugated pipe of synthetic resin material to maintain the form against the external force to protect the refrigerant pipe (110, 120) and the power line 140 therein and to bend easily during piping It is preferably made, but is not limited to this, can be used in a variety of materials and forms depending on the installation conditions.

상기 냉매관(110, 120)은 에어컨의 냉매순환로를 이루는 것으로, 에어컨 본 체의 증발기에서 기화된 냉매를 실외기로 이송하는 냉매관(120)과 실외기에서 응결된 냉매를 다시 에어컨 본체로 이송하는 냉매관(110) 등 두 개, 경우에 따라서는 둘 이상의 냉매관이 구비된다. The refrigerant pipes 110 and 120 form a refrigerant circulation path of the air conditioner, and the refrigerant pipe 120 transferring the vaporized refrigerant from the evaporator of the air conditioner to the outdoor unit and the refrigerant condensed from the outdoor unit to the air conditioner body again. Two pipes 110 and the like, in some cases two or more refrigerant pipes are provided.

상기 단열재(130)는 발포합성수지 등 통상적인 단열재로 사용되는 적정 두께의 가요성 소재로 이루어져 각 냉매관(110, 120)의 내외부 간의 열전달을 차단하는 것으로, 종래와 같이 각 냉매관(110, 120)을 개별적으로 감싸는 별개의 튜브로 이루어진 것이 아니고, 하나의 시트형 단열재(130)가 복수의 냉매관(110, 120)을 감싸는 형태로 접합된 것이다. 도시된 바와 같이 한 쌍의 냉매관(110, 120)이 구비된 경우, 상기 단열재(130)는 양측 냉매관(110, 120)을 감싸되 냉매관(110, 120)이 서로 접하지 않도록 폭방향 양단부(131, 132)가 각각 양측 냉매관(110, 120) 사이의 내측면 부분에 접합된다. 여기서, 상기 단열재(130)의 폭방향 양단부(131, 132)는 서로 이격된 위치에 접합되어 양자 사이에 배선홈(133)이 형성되도록 구성된다. 또한, 상기 단열재(130)의 외측면, 상기 배선홈(133)이 형성된 부분과 반대되는 부분은 외측면끼리 서로 연접되도록 접합되는 것이 바람직하다. The heat insulator 130 is made of a flexible material having a suitable thickness used as a conventional heat insulator such as a foamed synthetic resin to block heat transfer between the inside and outside of each of the refrigerant pipes (110, 120), each of the refrigerant pipes (110, 120) ) Is not made of a separate tube to wrap individually, one sheet-shaped heat insulating material 130 is bonded in the form of wrapping a plurality of refrigerant pipes (110, 120). As shown, when a pair of refrigerant pipes 110 and 120 are provided, the heat insulating material 130 surrounds the refrigerant pipes 110 and 120 on both sides, but the width direction of the refrigerant pipes 110 and 120 does not contact each other. Both ends 131 and 132 are joined to inner side portions between the two refrigerant pipes 110 and 120, respectively. Here, the widthwise both ends 131 and 132 of the heat insulator 130 are joined to positions spaced apart from each other so that the wiring grooves 133 are formed therebetween. In addition, it is preferable that the outer surface of the heat insulator 130 and the portion opposite to the portion where the wiring groove 133 is formed are joined to be connected to the outer surfaces.

한편, 상기 단열재(130)는 외측면에 알루미늄 등으로 이루어진 금속박판이 접합된 것으로 이루어질 수도 있다. On the other hand, the heat insulator 130 may be made of a metal thin plate made of aluminum or the like bonded to the outer surface.

상기와 같은 본 발명의 배관재의 제조과정은 대략 다음과 같다.The manufacturing process of the pipe material of the present invention as described above is as follows.

먼저 각 냉매관(110, 120)을 적절한 간격으로 병렬 이송하면서 시트 형태의 단열재(130)를 공급하여 냉매관(110, 120) 주위를 감싸도록 폭방향으로 감아주고, 감겨진 단열재(130)의 폭방향 양단부를 냉매관(110, 120) 사이의 내측면에 서로 이 격되도록 접합하여 1차포장물을 만든다. 이와 같이 만들어진 1차포장물은 도 4의 (a)에 도시된 바와 같은 단면 형상을 갖게 되며, 이 1차포장물을 배선홈(133)이 외부를 향하도록 접어 접합하면 도 4의 (b)에 도시된 바와 같이 전체적인 단면형상이 대략 둥그스름한 형태를 갖게 되어 보호관(150)의 내부에 용이하게 삽입할 수 있게 된다. First, while transporting each of the refrigerant pipes 110 and 120 in parallel at appropriate intervals, the sheet-shaped heat insulating material 130 is supplied to be wound in the width direction to surround the refrigerant pipes 110 and 120, and the wound of the heat insulating material 130 Both ends of the width direction are joined to the inner surface between the refrigerant pipes 110 and 120 to be spaced apart from each other to form a primary package. The primary package made as described above has a cross-sectional shape as shown in FIG. 4 (a). When the primary package is folded and joined so that the wiring groove 133 faces outward, the primary package is shown in FIG. 4 (b). As described above, the overall cross-sectional shape has a substantially rounded shape so that it can be easily inserted into the protective tube 150.

이때, 본 발명의 배관재는 전원선(140)이 상기 배선홈(133)을 따라 삽입된 상태로 보호관(150) 내부에 수용되므로, 상대적으로 내경이 작은 보호관(150)의 내부에도 1차포장물과 전원선(140)을 보다 용이하게 삽입할 수 있어 생산성이 향상되고, 이를 통해 제품의 외경 사이즈를 보다 소형화할 수 있는 장점이 있다. 부가적으로, 동일 직경의 냉매관(110, 120)을 감쌀 때 소요되는 단열재(130)의 폭을 줄일 수 있으므로, 재료 비용을 절감할 수 있는 효과도 있다. In this case, since the piping material of the present invention is accommodated inside the protection tube 150 in a state where the power line 140 is inserted along the wiring groove 133, the primary packing material may be stored in the protection tube 150 having a relatively small inner diameter. Since the power line 140 can be more easily inserted, the productivity is improved, and thus the outer diameter of the product can be further reduced. In addition, since it is possible to reduce the width of the heat insulating material 130 required to wrap the refrigerant pipes 110 and 120 of the same diameter, there is an effect that can reduce the material cost.

또한, 상기와 같이 단열재(130)를 접어 외측면을 서로 접합하여 1차포장물의 형태가 대략 둥근 형태가 되도록 함으로써, 보호관(150)에 더욱 용이하게 삽입될 수 있어 생산성이 더욱 향상된다. In addition, by folding the heat insulating material 130 as described above to bond the outer surface to each other to form a substantially round shape of the primary package, it can be more easily inserted into the protective tube 150, further improving the productivity.

이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명백할 것이다.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.

도 1은 종래의 에어컨용 배관재를 도시한 사시도이다.1 is a perspective view showing a conventional plumbing material for air conditioners.

도 2는 도 1에 도시된 에어컨용 배관재의 제조과정을 도시한 단면도이다.2 is a cross-sectional view showing a manufacturing process of the piping material for air conditioner shown in FIG.

도 3은 본 발명에 따른 에어컨용 배관재의 일실시예를 도시한 사시도이다.3 is a perspective view showing an embodiment of a piping material for an air conditioner according to the present invention.

도 4는 도 3에 도시된 본 발명의 에어컨용 배관재의 제조과정을 도시한 단면도이다.Figure 4 is a cross-sectional view showing the manufacturing process of the piping material for air conditioner of the present invention shown in FIG.

Claims (2)

서로 소정 간격 이격되어 병렬 배치된 둘 이상의 냉매관(110, 120); Two or more refrigerant pipes 110 and 120 spaced apart from each other at predetermined intervals; 일방향으로 긴 시트 형의 발포합성수지를 상기 복수의 냉매관(110, 120)을 감싸도록 말아 폭방향 양단부(131, 132)와 냉매관(110, 120) 사이의 내측면 부분을 서로 접합하되, 양단부(131, 132)가 서로 이격되어 그 사이에 배선홈(133)이 형성된 단열재(130); The sheet-like foamed synthetic resin that is long in one direction is rolled up to surround the plurality of refrigerant pipes 110 and 120, and the inner side portions of the width direction both ends 131 and 132 and the refrigerant pipes 110 and 120 are joined to each other. Insulation material (131, 132) spaced apart from each other and the wiring groove 133 is formed therebetween; 상기 배선홈(133)을 따라 삽입 배치되는 전원선(140); 및A power line 140 inserted and disposed along the wiring groove 133; And 상기 단열재(130)가 포장된 냉매관(110, 120)과 전원선(140)이 내부에 삽입되는 보호관(150)을 포함하는 에어컨용 배관재.Refrigerant pipe (110, 120) and the heat insulating material 130, the piping material for an air conditioner comprising a protective tube 150 is inserted into the power line 140. 제1항에 있어서,The method of claim 1, 상기 단열재(130)는 상기 배선홈(133)이 외부를 향하도록 접힌 상태로 연접된 외측면이 서로 접합된 것을 특징으로 하는 에어컨용 배관재. The heat insulator 130 is an air conditioner piping material, characterized in that the outer surface is joined to each other in a state in which the wiring groove 133 is folded to face the outside.
KR1020080038325A 2008-04-24 2008-04-24 Piping for air conditioner KR100903261B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101279074B1 (en) * 2010-11-23 2013-06-26 문덕수 Piping material for the air conditioner manufacturing method
KR20220105090A (en) * 2021-01-19 2022-07-26 강지연 Multi-tube for air conditioning and heating

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200303953Y1 (en) 2002-11-13 2003-02-11 정진우 Piping cable for air conditioning having a lagging and protection cover
KR20060011137A (en) * 2004-07-29 2006-02-03 (주)에이치아이코리아 An adiabatic tube and piping using same that

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200303953Y1 (en) 2002-11-13 2003-02-11 정진우 Piping cable for air conditioning having a lagging and protection cover
KR20060011137A (en) * 2004-07-29 2006-02-03 (주)에이치아이코리아 An adiabatic tube and piping using same that

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101279074B1 (en) * 2010-11-23 2013-06-26 문덕수 Piping material for the air conditioner manufacturing method
KR20220105090A (en) * 2021-01-19 2022-07-26 강지연 Multi-tube for air conditioning and heating
KR102483144B1 (en) * 2021-01-19 2022-12-29 강지연 Multi-tube for air conditioning and heating

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