KR20010029350A - Connecting ASS'Y of coolant pipe for airconditioner - Google Patents

Connecting ASS'Y of coolant pipe for airconditioner Download PDF

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Publication number
KR20010029350A
KR20010029350A KR1019990042116A KR19990042116A KR20010029350A KR 20010029350 A KR20010029350 A KR 20010029350A KR 1019990042116 A KR1019990042116 A KR 1019990042116A KR 19990042116 A KR19990042116 A KR 19990042116A KR 20010029350 A KR20010029350 A KR 20010029350A
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KR
South Korea
Prior art keywords
pipe
protector member
side pipe
connecting nut
nut
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Application number
KR1019990042116A
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Korean (ko)
Inventor
이병준
홍성목
Original Assignee
황한규
만도공조 주식회사
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Application filed by 황한규, 만도공조 주식회사 filed Critical 황한규
Priority to KR1019990042116A priority Critical patent/KR20010029350A/en
Publication of KR20010029350A publication Critical patent/KR20010029350A/en

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    • 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
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
    • F16L15/007—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with more than one threaded section
    • 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
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
    • F16L15/008—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with sealing rings
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

PURPOSE: Connection structure of a refrigerant pipe is provided to avoid corrosion of a specific part and to extend life by preventing the movement of charge upon coupling a copper pipe to an aluminium pipe. CONSTITUTION: In case that the quality of one side pipe(1) is different from that of the other pipe, a connecting nut(3) is molded with a material having the same quality as the one side pipe(1). After forming an inner short sill in the bore of the connecting nut, a nonmetal protector member(5) is inserted in the short sill not to contact the other side pipe. The protector member is formed on an inner circumferential portion and a side portion. The inner circumferential portion directly contacts the other side pipe while the side portion directly contacts circular frame unit(21). As the outer diameter size of the protector member is equal to the bore size of the short sill, the protector member is not readily taken out. The connecting nut is supplied in a state of assembling the protector member. Thus, even if metal pipes have different potential, the potential is not moved so that corrosion is not generated.

Description

에어콘용 냉매 파이프의 연결구조 {Connecting ASS'Y of coolant pipe for airconditioner}Connecting ASS'Y of coolant pipe for airconditioner}

본 발명은 에어콘용 냉매 파이프의 연결구조에 대한 것으로서, 더 상세하게는 동파이프와 알루미늄파이프를 연결할 때, 전위차에 의해 부식되는 것을 방지할 수 있도록 하는데 특징이 있는 것이다.The present invention relates to a connection structure of a refrigerant pipe for an air conditioner, and more particularly, when connecting the copper pipe and the aluminum pipe, it is characterized in that it is possible to prevent the corrosion by the potential difference.

일반적으로 에어콘에서는 냉매 순환용 파이프를 서로 연결하기 위해서 도 1에서 보는 바와 같은 연결구조를 사용한다.In general, the air conditioner uses a connection structure as shown in FIG. 1 to connect the refrigerant circulation pipes to each other.

즉, 일측 파이프(1)의 끝단에는 숫나사부(11)와 육각머리의 단턱부(12)를 형성하고, 타측 파이프(2)의 끝단에는 연결너트(3)를 끼우되, 연결너트(3)의 내경턱(31)이 걸려 빠지지 않도록 환테부(21)를 형성한 후, 상기한 환테부(21)와 일측 파이프(1)의 끝단면 사이에 O링(4)을 개입시켜 조립한다.That is, one end of the pipe 1 is formed with a male threaded portion 11 and a hexagonal head stepped portion 12, and the other end of the pipe 2 is fitted with a connection nut 3, the connection nut (3) After forming the annulus part 21 so that the inner jaw 31 of the hook does not fall out, it is assembled through the O-ring 4 between the annular part 21 and the end surface of the one-side pipe 1.

한편, 냉매 순환용 파이프의 재질은 주로 동파이프와 알루미늄파이프를 사용하는 바, 경우에 따라서는 동파이프 대 동파이프를 연결할 때도 있고, 동파이프와 알루미늄파이프를 연결할 때도 있다.Meanwhile, the material of the refrigerant circulation pipe mainly uses copper pipes and aluminum pipes. In some cases, copper pipes and copper pipes may be connected, and copper pipes and aluminum pipes may be connected.

동파이프와 동파이프를 연결할 때는 아무런 문제가 없지만 동파이프와 알루미늄파이프를 연결할 때는 각자의 재질이 가지는 전위차가 다르기 때문에 부식될 염려가 많다.There is no problem when connecting copper pipes and copper pipes, but when connecting copper pipes and aluminum pipes, there is a high possibility of corrosion because the potential difference of each material is different.

즉, 도 1의 경우 일측 파이프(1)는 알루미늄재질, 타측 파이프(2)는 동재질, 그리고 연결너트(3)는 황동재질 등으로 구성하였을 경우, 이러한 종래의 파이프 연결구조에서는 동파이프와 알류미늄파이프의 접촉상태를 그대로 방치해 두는 구조였기 때문에 장기간 사용할 경우, 전하(-)가 알루미늄파이프쪽에서 동파이프쪽으로 이동하게 되고, 이러한 현상은 염분이 많은 지역에서 특정부분의 부식을 초래하여 수명이 짧아지는 문제점이 있다.That is, in the case of FIG. 1, when one pipe 1 is made of aluminum, the other pipe 2 is made of copper, and the connection nut 3 is made of brass, etc., in the conventional pipe connection structure, copper pipe and aluminum Because of the structure that the contact state of the pipe is left as it is, if it is used for a long time, the charge (-) moves from the aluminum pipe side to the copper pipe, and this phenomenon causes corrosion of certain parts in the salty area and shortens the life. There is a problem.

따라서 본 발명은 상기와 같은 종래의 문제점을 감안하여 이를 해결 보완하고자 안출한 것으로서, 발명의 주된 목적은 동재질의 파이프와 알루미늄재질의 파이프를 서로 연결할 때는 전위차에 따른 전하의 이동을 예방할 수 있도록 구조를 개량하는데 있으며, 더 나가서 전하의 이동을 예방하므로써 특정부위의 부식을 막아 수명이 오래 갈 수 있도록 하는데 있는 것이다.Therefore, the present invention has been made in view of the above-mentioned conventional problems to solve the problem, the main object of the invention is to connect the pipes of the same material and aluminum pipes of each other structure to prevent the movement of charge due to the potential difference It is to improve the lifespan, and to prevent the transfer of charges further, to prevent the corrosion of certain parts and to have a long service life.

이를 위한 특징적인 수단은 일측 파이프의 끝단에는 숫나사부와 육각머리의 단턱부를 형성하고, 타측 파이프의 끝단에는 연결너트를 끼우되, 연결너트의 내경턱이 걸려 빠지지 않도록 환테부를 형성한 후, 상기한 환테부와 일측 파이프의 끝단면 사이에 O링을 개입시켜 조립하는 냉매 파이프 연결구조에 있어서, 상기한 일측 파이프와 타측 파이프의 재질이 다를 경우, 상기한 연결너트는 그 재질을 숫나사부를 가진 일측 파이프와 같은 재질로 성형하되, 그 내경에 내단턱을 형성한 후, 상기 내단턱에 비금속재질의 프로텍터부재를 끼워 타측 파이프와 직접 접촉하지 않도록 하는데 있다.Characteristic means for this purpose is to form a male threaded portion and a hexagonal head end portion at one end of the pipe, and to insert the connection nut at the end of the other pipe, to form an annulus so that the inner diameter of the connection nut is not caught, In the refrigerant pipe connection structure assembled through the O-ring between the annulus part and the end surface of one pipe, when the material of the one pipe and the other pipe is different, the connection nut has one material having a male thread. It is molded in the same material, but after forming the inner step in the inner diameter, and inserting a non-metallic protector member on the inner step so as not to be in direct contact with the other pipe.

도 1은 종래의 구성을 보인 단면도1 is a cross-sectional view showing a conventional configuration

도 2는 본 발명의 구성을 보인 단면도2 is a cross-sectional view showing the configuration of the present invention

도 3은 본 발명의 요부 분해 단면도3 is an exploded cross-sectional view of the main part of the present invention.

＜도면의 주요 부분에 대한 부호의 설명＞<Description of the code | symbol about the principal part of drawing>

1 : 일측 파이프1: one side pipe

2 : 타측 파이프2: other side pipe

3 : 연결너트3: Connection nut

4 : O링4: O-ring

5 : 프로텍터부재5: protector member

11 : 숫나사부11: male thread part

12 : 단턱부12: stepped portion

21 : 환테부21: Fantebu

31 : 내경턱31: Internal Jaw

32 : 내단턱32: inside step

51 : 측면부51: side part

52 : 내주연부52: inner peripheral edge

이하 본 발명의 실시예에 따른 구성 및 작용을 첨부 도면에 따라 상세히 설명한다.Hereinafter, the configuration and operation according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 조립상태를 보인 단면도로서, 일측 파이프(1)의 끝단에는 숫나사부(11)와 육각머리의 단턱부(12)를 형성하고, 타측 파이프(2)의 끝단에는 연결너트(3)를 끼우되, 연결너트(3)의 내경턱(31)이 걸려 빠지지 않도록 환테부(21)를 형성한 후, 상기한 환테부(21)와 일측 파이프(1)의 끝단면 사이에 O링(4)을 개입시켜 조립하는 것은 종래와 대동소이하다.Figure 2 is a cross-sectional view showing the assembled state of the present invention, one end of the pipe (1) is formed with a male threaded portion 11 and the hexagonal head stepped portion 12, the other end of the pipe (2) connecting nut ( 3), but the annulus 21 is formed so that the inner diameter 31 of the connecting nut 3 is not caught, and then between the annulus 21 and the end surface of the one-side pipe 1 are formed. Assembling through the ring 4 is much the same as in the prior art.

이때, 본 발명에서는 상기한 일측 파이프(1)와 타측 파이프(2)의 재질이 다를 경우, 상기한 연결너트(3)를 숫나사부(11)를 가진 일측 파이프(1)와 같은 재질로 성형하는 것이 중요하다.At this time, in the present invention, when the material of the one side pipe (1) and the other side pipe (2) is different, forming the connecting nut (3) of the same material as the one side pipe (1) having a male screw portion (11) It is important.

그리고, 이와 같은 연결너트(3)의 내경에 내단턱(32)을 형성한 후, 상기 내단턱(32)에 비금속재질의 프로텍터부재(5)를 끼워 타측 파이프(2)와 직접 접촉하지 않도록 하는 것이 큰 특징이다.Then, after forming the inner step (32) in the inner diameter of the connecting nut (3), and inserts a non-metallic protector member (5) on the inner step (32) so as not to be in direct contact with the other side pipe (2). It is a big feature.

또, 프로텍터부재(5)는 내주연부(52)와 측면부(51)로 형성하여 내주연부(52)는 타측 파이프(2)에 직접 접촉되고, 측면부(51)는 환테부(21)에 직접 접촉되도록 한다.In addition, the protector member 5 is formed by the inner circumferential portion 52 and the side portion 51 so that the inner circumferential portion 52 is in direct contact with the other side pipe 2, and the side portion 51 is in direct contact with the annulus portion 21. Be sure to

이와 같이 구성된 본 발명은 프로텍터부재(5)의 외경치수를 연결너트(3)의 내단턱(32)의 내경치수와 같은 치수로 하여 가능한 억지끼움의 방식으로 조립하여 쉽게 빠지지 않도록 하는 것이 좋고, 이와 같이 프로텍터부재(5)가 조립된 상태로 연결너트(3)를 공급하는 것이 바람직하다.According to the present invention configured as described above, the outer diameter of the protector member 5 has the same dimensions as the inner diameter of the inner step 32 of the connecting nut 3, so that it can be easily assembled and prevented from falling out. As described above, it is preferable to supply the connection nut 3 with the protector member 5 assembled.

예컨데, 숫나사부(11)를 가진 일측 파이프(1)가 알루미늄파이프이고, 환테부(21)를 가진 타측 파이프(2)가 동파이프라고 가정한다면, 숫나사부(11)와 나삽될 연결너트(3)는 같은 알루미늄재질로 성형하되, 내경의 내단턱(32)에 프로텍터부재(5)가 일체로 끼워져 있기 때문에 동재질의 타측 파이프(2)와, 연결너트(3)는 공기중에 노출된 상태에서 서로 닿지 않는다.For example, assuming that one pipe 1 having a male portion 11 is an aluminum pipe and the other pipe 2 having a circular rim 21 is a copper pipe, the connection nut 3 to be screwed with the male portion 11 is assumed. ) Is formed of the same aluminum material, but since the protector member 5 is integrally fitted to the inner end jaw 32 of the inner diameter, the other pipe 2 and the connection nut 3 of the same material are exposed to the air. Do not touch each other

따라서 염분이 많다든가 하는 악조건속에서도 전위차이가 있는 서로 다른 금속 파이프라 하더라도 전위가 이동하지 않아 부식을 초래하는 일이 없게 되는 것이다.Therefore, even in a bad condition such as high salinity, even if different metal pipes with potential difference, the potential does not move and cause corrosion.

위에서 상세히 설명한 바와 같은 본 발명은 연결너트(3)를 숫나사부(11)를 가지는 일측 파이프(1)와 같은 재질로 하고, 그 내단턱(32)에 프로텍터부재(5)를 개입시켰기 때문에 서로 다른 재질의 파이프가 직접적인 접촉이 차단되고, 따라서, 공기중에 노출된 부분을 통해 전하가 이동하지 않아 부식을 초래하는 일이 예방되고, 수명이 길어지는 장점이 있다.According to the present invention as described in detail above, the connecting nut 3 is made of the same material as the one side pipe 1 having the male threaded part 11, and the protector member 5 is interposed between the inner step 32 and the different parts. There is an advantage that the pipe of the material is in direct contact is blocked, therefore, the charge does not move through the exposed portion in the air to prevent corrosion and long life.

Claims (2)

일측 파이프(1)의 끝단에는 숫나사부(11)와 육각머리의 단턱부(12)를 형성하고, 타측 파이프(2)의 끝단에는 연결너트(3)를 끼우되, 연결너트(3)의 내경턱(31)이 걸려 빠지지 않도록 환테부(21)를 형성한 후, 상기한 환테부(21)와 일측 파이프(1)의 끝단면 사이에 O링(4)을 개입시켜 조립하는 냉매 파이프 연결구조에 있어서,One end of the pipe 1 is formed with a male threaded portion 11 and a hexagonal head stepped portion 12, and the other end of the pipe 2 is fitted with a connection nut 3, the inner diameter of the connection nut (3) After forming the annulus 21 to prevent the jaw 31 from being caught, the refrigerant pipe connecting structure for assembling through the O-ring 4 between the annulus 21 and the end surface of the one-side pipe 1 is formed. To 상기한 일측 파이프(1)와 타측 파이프(2)의 재질이 다를 경우,If the material of the one side pipe (1) and the other side pipe (2) is different, 상기한 연결너트(3)는 그 재질을 숫나사부(11)를 가진 일측 파이프(1)와 같은 재질로 성형하되, 그 내경에 내단턱(32)을 형성한 후, 상기 내단턱(32)에 비금속재질의 프로텍터부재(5)를 끼워 타측 파이프(2)와 직접 접촉하지 않도록 하여서 된 것을 특징으로 하는 에어콘용 냉매 파이프의 연결구조.The connecting nut (3) is formed of the same material as the one pipe (1) having a male thread portion 11, the inner end jaw (32) is formed in the inner diameter, and then the inner step (32) A connection structure of an air conditioner refrigerant pipe, characterized in that the non-metallic protector member (5) is inserted so as not to be in direct contact with the other pipe (2). 제 1 항에 있어서,The method of claim 1, 상기한 프로텍터부재(5)는 내주연부(52)와 측면부(51)로 형성하여 내주연부(52)는 타측 파이프(2)에 직접 접촉되고, 측면부(51)는 환테부(21)에 직접 접촉되도록 하여서 된 것을 특징으로 하는 에어콘용 냉매 파이프의 연결구조.The protector member 5 is formed by the inner circumferential portion 52 and the side portion 51 so that the inner circumferential portion 52 is in direct contact with the other side pipe 2, and the side portion 51 is in direct contact with the annulus portion 21. The connection structure of the refrigerant pipe for the air conditioner, characterized in that it is made to be.
KR1019990042116A 1999-09-30 1999-09-30 Connecting ASS'Y of coolant pipe for airconditioner KR20010029350A (en)

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KR1019990042116A KR20010029350A (en) 1999-09-30 1999-09-30 Connecting ASS'Y of coolant pipe for airconditioner

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KR1019990042116A KR20010029350A (en) 1999-09-30 1999-09-30 Connecting ASS'Y of coolant pipe for airconditioner

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040050322A (en) * 2002-12-10 2004-06-16 최성심 A coupling for piping connection
KR20040050320A (en) * 2002-12-10 2004-06-16 최성심 A coupling for piping connection
KR101130849B1 (en) * 2009-09-08 2012-03-28 주식회사 한국번디 different material pipe prevented welding point from breaking off and the method for the same
WO2013111951A1 (en) * 2012-01-27 2013-08-01 Park Ae Kyung Piping apparatus for air conditioner installation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040050322A (en) * 2002-12-10 2004-06-16 최성심 A coupling for piping connection
KR20040050320A (en) * 2002-12-10 2004-06-16 최성심 A coupling for piping connection
KR101130849B1 (en) * 2009-09-08 2012-03-28 주식회사 한국번디 different material pipe prevented welding point from breaking off and the method for the same
WO2013111951A1 (en) * 2012-01-27 2013-08-01 Park Ae Kyung Piping apparatus for air conditioner installation

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