WO2016013808A1 - Connection structure of refrigerant tube - Google Patents

Connection structure of refrigerant tube Download PDF

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Publication number
WO2016013808A1
WO2016013808A1 PCT/KR2015/007427 KR2015007427W WO2016013808A1 WO 2016013808 A1 WO2016013808 A1 WO 2016013808A1 KR 2015007427 W KR2015007427 W KR 2015007427W WO 2016013808 A1 WO2016013808 A1 WO 2016013808A1
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WO
WIPO (PCT)
Prior art keywords
expansion
pipe
refrigerant pipe
valve
sealing member
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PCT/KR2015/007427
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French (fr)
Korean (ko)
Inventor
오형동
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오형동
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Application filed by 오형동 filed Critical 오형동
Publication of WO2016013808A1 publication Critical patent/WO2016013808A1/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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/04—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
    • 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
    • F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units

Definitions

  • the present invention provides a connection of a refrigerant pipe that connects each end portion of the refrigerant pipe to guide the refrigerant gas progression between the indoor and outdoor air forming the cooling or heating device and the cooling / heating device (hereinafter referred to as "air conditioner"). It's about structure.
  • the air conditioner is divided into indoor / outdoor, and the refrigerant pipes are interconnected and installed to allow refrigerant gas to flow between the indoor / outdoor air, and the airtight conditioner should be installed to maintain airtightness between each end portion of the refrigerant pipe and the indoor / outdoor air. It is essential.
  • the Japanese Utility Model Model Publication No. 50-045946 which will be briefly described with reference to FIG. 1, inserts a fastener (1) capable of screwing into an end portion, and forms a flared expandable portion (2) at the end thereof. Connect the sphere (1) by connecting to the connector (3) provided in the indoor unit or outdoor unit.
  • the copper tube and the fastener 1 and the connector 3 forming the expansion pipe 2 are all made of metal, there is a limit in maintaining airtightness due to the coupling between the metals, and in particular, the copper tube has a high price. There is a problem that the installation cost rises.
  • the aluminum (Al) tube is used instead.
  • Al aluminum
  • such an aluminum tube has a problem that is vulnerable to corrosion.
  • connection structure of the refrigerant pipe using the resin-coated aluminum (Al) pipe there is a registered Patent No. 10-1195425 shown in FIG. 2, which the inventors have invented and registered.
  • a valve 10 installed at a corresponding location of an outdoor unit and an indoor unit of a cooling and heating device, and having a bolt portion 11 formed at a rear side thereof, and an inclined surface 12 having an outer diameter gradually decreasing toward an end portion at a rear end of the bulge portion;
  • a trumpet-shaped expansion pipe portion 21 is formed at the front to be coupled to the inclined surface of the valve, and the outer surface of the refrigerant pipe is resin coated;
  • the front end portion is formed with an internal extension 51 having the same shape as that of the expansion portion so as to be tightly coupled inside the expansion pipe, and the front end of the internal expansion portion tightly surrounds and protects the front end of the expansion pipe.
  • An inner sleeve 50 formed to extend and form an inner fitting pipe 54 fitted into the refrigerant pipe to the rear of the inner extension part;
  • the front end portion is formed to be tightly coupled to the outside of the expansion pipe portion is formed with an external extension portion 31 having the same shape as the expansion pipe portion, the front end of the outer extension portion of the airtight holding that the surface contact with the protector 52 to maintain airtightness
  • An outer sleeve 30 formed with an extension portion 32 and having an outer fitting pipe 35 fitted to the outside of the refrigerant pipe at the rear of the outer extension part;
  • Refrigerant pipe connection structure of the Patent No. 10-1195425 has the configuration as described above, the outer sleeve 30 and the inner sleeve 50 is stainless, the refrigerant pipe 20 is aluminum, the valve 10 and the nut ( 40) is copper, and the parts of different materials have different coefficients of thermal expansion, so that the continuous operation and rest of the air conditioner are repeated, resulting in different shrinkage and expansion rates of the parts, thereby making it difficult to secure airtightness. Because of the combination between the two even if a solid coupling is not possible to ensure complete airtight there is a problem that the cooling / heating efficiency of the air conditioner is deteriorated due to leakage of the refrigerant gas.
  • the present invention is invented to solve the above problems, the object is,
  • the problem solving means of the present invention for achieving the above object is the valve 110 is installed in the indoor / outdoor air corresponding places of the air conditioner, and the refrigerant pipe 140 formed with a trumpet-shaped expansion pipe 141 in the front and An inner sleeve 130 having an inner expanding portion 131 fitted into the expanding portion, an outer sleeve 150 having an outer expanding portion 151 coupled to an outer portion of the expanding portion, and an expanding portion;
  • the connection structure of the refrigerant pipe made of a nut 170 screwed to the valve 110 in a state that accommodates the inner sleeve, the outer sleeve,
  • a first sealing member 120 having a shape corresponding to the inner expansion portion is provided between the lower part of the valve 110 and the inner expansion portion 131 to ensure airtightness and protect the inner expansion portion.
  • the first sealing member has an inner surface in close contact with the lower portion of the valve, the outer surface is in close contact with the inner expansion portion 121 is formed in the lower portion and the inner portion of the inner sleeve 130 A lower sleeve 123 that is tightly fitted to and coupled to the upper portion of the upper portion of the expansion part so as to vertically upwardly contact the lower portion of the valve,
  • a second sealing member 160 having a shape corresponding to the external expansion unit is provided to secure airtightness and protect the external expansion unit.
  • the upper portion of the second sealing member is formed by forming an upper upward extension portion 161 in contact with the expansion portion 121 of the first sealing member.
  • Refrigerant pipe connection structure of the present invention having the configuration as described above, as described in the above object, first, to protect the refrigerant pipe expansion of the aluminum material, and second, to maintain the firm fastening force, and third, the solid By preventing the leakage of refrigerant gas due to maintaining the tightening force has an effect that can improve the cooling / heating efficiency of the air conditioner.
  • FIG. 1 is a cross-sectional view illustrating a refrigerant pipe connection structure of a first embodiment of the present invention
  • FIG. 2 is a cross-sectional view illustrating a refrigerant pipe connection structure of a conventional second embodiment
  • FIG. 3 is an exploded perspective view illustrating a damaged state of a conventional aluminum refrigerant pipe
  • FIG. 4 is an exploded perspective view illustrating the refrigerant pipe connection structure of the present invention.
  • FIG. 5 is an exploded cross-sectional view illustrating a refrigerant pipe connection structure of the present invention.
  • FIG. 6 is an enlarged cross-sectional view illustrating the refrigerant pipe connection structure of the present invention.
  • the nut 170 is connected to the refrigerant pipe 140 so that the expansion pipe 141 of the refrigerant pipe 140 is tightly coupled to the tapered portion 113 of the valve 110 to maintain airtightness.
  • 140 and the bolt 110 and the nut 170 are coupled and screwed together, the male screw 112 of the valve 110 and the female screw 172 of the nut 170 are screwed together and the refrigerant pipe 140 ),
  • the expansion pipe 141 is tightly and firmly fastened to the tapered portion 113 of the valve 110.
  • the material of the refrigerant pipe 140 in which the expansion pipe part 141 is formed is aluminum, and the valve 110 is one of copper, iron, and stainless steel, and thus, when the nut 170 is tightened too strongly, the expansion pipe of the refrigerant pipe 140 is formed.
  • the coupling force of the taper portion 113 of the valve 141 and the valve 110 becomes stronger, the expansion portion 141 is damaged or broken as shown in FIG. 3, and thus the expansion portion 141 and the tapered portion 113 are generated. There is a problem that the bonding force between the breakdown occurs and leakage of the refrigerant occurs.
  • the present invention provides an inner surface of the expansion pipe 141 of the refrigerant pipe 140 and a tapered portion of the valve 110.
  • An expansion pipe portion of the refrigerant pipe 140 is interposed between an outer surface of the refrigerant pipe 140 and an inner sleeve 130 having an internal expansion pipe portion 131 having a shape corresponding to the expansion pipe portion 141 of the refrigerant pipe 140 is formed.
  • the inner side and the outer side of the expansion part 141 of the expansion pipe 141 of the refrigerant pipe 140 are disposed on the outer surface of the refrigerant pipe 140 through the outer sleeve 150 having the external expansion pipe 151 formed therein. 151 is wrapped and tightly fixed to prevent the leakage of the refrigerant to the refrigerant pipe 140, as well as to protect the expansion portion 141 of the refrigerant pipe 140.
  • the upper portion of the inner expansion portion 131 is bent downward, and the upper portion of the outer expansion portion 151 forms an extension portion 152 that is vertically upward, because the bolt 110 is shown in FIG. 6.
  • the upper end of the expansion pipe 141 of the refrigerant pipe 140 is wrapped around the upper portion of the internal expansion pipe 131, and the tip of the internal expansion pipe 131 is By being in close contact with the inner surface of the external expansion pipe 151 to protect the expansion pipe 141 of the refrigerant pipe 140, as well as to ensure airtightness.
  • the upper downward bent portion of the inner expansion portion 131 and the outer expansion portion 151 protect the end portion of the expansion portion 141 of the refrigerant pipe 140.
  • the upper end of the expansion pipe 141 is not directly in contact with the tapered portion 113 of the valve 110, and the upper downward bent portion of the internal expansion pipe 131 and the extension of the external expansion pipe 151. Because it is accepted by 152.
  • the external expansion unit 151 of the outer sleeve 150 and the internal expansion unit 131 of the inner sleeve 130 are formed in a shape corresponding to the shape of the expansion unit 141 of the refrigerant pipe 140 to form a refrigerant pipe.
  • the expansion portion 141 of the 140 is tightly wrapped to protect and maintain confidentiality at the same time.
  • the tube 153 of the outer sleeve 150 is formed with an anchor piece 154 facing inward of the tube 153.
  • the reason for forming the anchor piece 154 is that the outer sleeve 150 is a refrigerant pipe. After being inserted into the 140, the end of the anchor piece 154 is fixed while being in close contact with the resin coating layer 142 of the refrigerant pipe 140, the outer sleeve 150 is fitted into the refrigerant pipe 140 is coupled This is to be secured without being separated from the position coupled to the refrigerant pipe 140 is coupled.
  • the anchor piece 154 which serves as described above, is preferably formed to have an inclination from the top to the bottom direction, but in addition, the outer sleeve 151 and the expansion pipe 141 are coupled to each other, and then the outer sleeve from the coupling position thereof. As long as 150 is the anchor piece 154 of the structure which does not deviate, it is all possible.
  • the tube 153 of the outer sleeve 150 is formed with a protrusion 155 facing the outside of the tube 153, the reason for forming the protrusion 155, the outer sleeve 150 is a nut 170
  • the protrusion 155 is coupled to the protrusion groove 174 after being seated on the seating portion 173 of the bottom) to prevent the positional deviation of the outer sleeve 150.
  • the inner sleeve 130 and the outer sleeve 150 are coupled to surround the inside and the outside of the expansion pipe 141 of the refrigerant pipe 140, the inner sleeve 130 is tapered of the valve 110.
  • the outer sleeve 150 is in contact with the seating portion 173 of the nut 170, wherein the inner sleeve 130, the outer sleeve 150, the nut 170, the valve 110 are all Is a metal, the weakness of the coupling force, that is, the airtightness is weakened to prevent this occurs between the inner expansion portion 131 of the inner sleeve 130 and the tapered portion 113 of the valve 110 and the external expansion of the outer sleeve 150
  • the first sealing member 120 and the second sealing member 160 are interposed between the pipe part 151 and the seating part 173 of the nut 170 to secure airtightness, as well as the inner sleeve 130 and To protect the outer sleeve 150.
  • first sealing member 120 and the second sealing member 160 are made of a material having a contraction and expansion force, not only the inner sleeve 130 and the outer sleeve 150 are protected, but also the external shock. It will be able to buffer and maintain a close bond.
  • the first sealing member 120 acting as described above is formed in a shape that matches the shape of the inner expanding portion 131, and the shape of the second sealing member 160 matches the shape of the outer expanding portion 151. It is preferable that it is formed in the shape to be. The reason is to secure close contact and thus airtightness and to protect the inner sleeve 130 and the outer sleeve 150.
  • the lower sleeve 123 is formed in the lower portion based on the expansion part 121 so as to be accommodated to the lower end of the formed male screw 112 and to improve airtightness.
  • the sleeve 123 is fitted to be coupled to ensure a secure coupling of the first sealing member 120.
  • the reason why the extension part 161 is formed on the upper part of the second sealing member 160 is that the upper end of the extension part 161 after the completion of the refrigerant pipe 140 coupling by the refrigerant pipe connection structure of the present invention. As shown in FIG. 6, the airtightness is further improved by being in intimate contact with the expansion part 121 of the first sealing member 120.
  • the outer surface of the refrigerant pipe 140 is resin-coated to form the resin coating layer 142, the effect of heat retention, as well as corrosion resistance is improved and at the same time has an impact buffering force, 151) and the bonding force is improved.
  • the expansion portion 121 and the upper extension portion 122 of the first sealing member 120 are tapered portions of the valve 110 as shown in FIG. 6 after completion of the coupling.
  • Completely wrapped 113 is coupled, the lower sleeve 123 is tightly coupled to the inner sleeve 130 and at the same time the second sealing member 160 wraps around the outer expansion portion 151 of the outer sleeve 150 to extend Since the upper end of the portion 161 is in intimate contact with the outer surface of the first sealing member 120, complete airtightness is secured.
  • the refrigerant pipe connection structure of the present invention as described above, as described in the above effect, can protect the refrigerant pipe expansion portion of the aluminum material, and can maintain the firm tightening force continuously, the leakage of refrigerant gas due to the solid fastening force maintenance There is an advantage to improve the cooling / heating efficiency of the air conditioner by preventing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Housings (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The present invention relates to a connection structure of a refrigerant tube, the connection structure enabling, so as to maintain airtightness, the connection of each of the end parts of a refrigerant tube which induces the passage of refrigerant gas between an indoor unit and an outdoor unit forming a cooling or heating device and a cooling/heating device, the configuration of the connection structure comprising: a valve (110) which is installed on corresponding places on the indoor unit and the outdoor unit of an air conditioner; a refrigerant tube (140) which has a trumpet-shaped tube expansion part (141) formed on the front thereof; an outer sleeve (150) which has formed thereon an outer tube expansion part (151) fitted on the refrigerant tube and coupled with the outer side of the tube expansion part; an inner sleeve (130) which has formed thereon an inner tube expansion part (131) fitted inside and coupled with the tube expansion part; a nut (170) which is fitted on the refrigerant tube so as to enable the outer sleeve to be accommodated therein, and which is screw-coupled with the valve (110); a first sealing member (120) which secures airtightness between the lower part of the valve (110) and the inner sleeve (130), and which has a form that corresponds with the form of the inner sleeve (130) which has contractile and expansion force; and a second sealing member (160) which secures airtightness between the inside of the nut (170) and the outer sleeve (150), and which has contractile and expansion force.

Description

냉매 관의 연결구조Refrigerant pipe connection structure
본 발명은 냉방 또는 난방장치 및 냉/난방장치(이하 "에어컨디셔너" 라 함)를 형성하는 실내/외기 간의 냉매가스 진행을 유도하는 냉매 관의 각 끝단 부분을 기밀성이 유지되게 연결하는 냉매 관의 연결구조에 관한 것이다.The present invention provides a connection of a refrigerant pipe that connects each end portion of the refrigerant pipe to guide the refrigerant gas progression between the indoor and outdoor air forming the cooling or heating device and the cooling / heating device (hereinafter referred to as "air conditioner"). It's about structure.
일반적으로 에어컨디셔너는 실내/외기로 구분되고, 그 실내/실외기 간에는 냉매가스가 진행하도록 냉매 관을 상호 연결 설치하는데, 그 냉매 관의 각 끝단 부분과 상기 실내/외기 간에는 기밀성이 유지되게 설치되어야 함이 필수적이다. In general, the air conditioner is divided into indoor / outdoor, and the refrigerant pipes are interconnected and installed to allow refrigerant gas to flow between the indoor / outdoor air, and the airtight conditioner should be installed to maintain airtightness between each end portion of the refrigerant pipe and the indoor / outdoor air. It is essential.
상기와 같이 기밀성이 유지되게 설치되는 종래의 냉매 관은 대부분이 동(Cu)관을 사용하고 있으며, 이러한 동관을 사용하여 냉매 관의 각 끝단 부분을 상호 연결 설치하는 종례 기술로는 일본 공개실용신안공보 소50-045946호가 있으며, 이를 도 1을 참조하여 간략하게 설명하면 나사 체결 가능한 체결구(1)를 단부에 끼우고, 해당 단부에 나팔 모양의 확관부(2)를 형성한 후, 상기 체결구(1)를 실내기 또는 실외기에 구비된 연결구(3)에 체결하는 방식으로 연결 시공한다. As the conventional refrigerant pipes installed to maintain airtightness as described above, most of them use copper pipes, and as the example technology of interconnecting each end portion of the refrigerant pipes using the copper pipes, the Japanese Utility Model Model Publication No. 50-045946, which will be briefly described with reference to FIG. 1, inserts a fastener (1) capable of screwing into an end portion, and forms a flared expandable portion (2) at the end thereof. Connect the sphere (1) by connecting to the connector (3) provided in the indoor unit or outdoor unit.
그러나 상기의 확관부(2)를 형성하는 동관과 체결구(1) 및 연결구(3)는 모두 금속이기 때문에 그 금속 간의 결합에 의한 기밀성 유지에 한계가 있고 특히 동관은 가격이 고가인 문제점으로 인하여 설치비용이 상승하는 문제점이 있다.However, since the copper tube and the fastener 1 and the connector 3 forming the expansion pipe 2 are all made of metal, there is a limit in maintaining airtightness due to the coupling between the metals, and in particular, the copper tube has a high price. There is a problem that the installation cost rises.
따라서 근래에는 상기의 설치비용 상승요인을 해소하기 위하여 알루미늄(Al)관으로 대체하여 사용하고 있으나 이와 같은 알루미늄관은 부식에 취약한 문제점이 있어 이를 극복하기 위하여 수지코팅을 함으로써, 부식의 취약점을 보완하고 그와 동시에 보온의 효과를 누리고 있다.Therefore, in recent years, in order to solve the above factors of the increase in installation cost, the aluminum (Al) tube is used instead. However, such an aluminum tube has a problem that is vulnerable to corrosion. At the same time, we enjoy the effect of thermal insulation.
상기 수지코팅 된 알루미늄(Al)관을 이용한 냉매 관의 연결구조는, 본 발명자가 발명하여 등록된 도 2에 나타낸 등록특허 제10-1195425호가 있으며, 이의 구성을 설명하면 아래와 같다.The connection structure of the refrigerant pipe using the resin-coated aluminum (Al) pipe, there is a registered Patent No. 10-1195425 shown in FIG. 2, which the inventors have invented and registered.
냉난방장치의 실외기 및 실내기 해당 개소에 설치되며 후방에 볼트부(11)가 형성되고, 그 불트부의 후단에 끝단 부분으로 갈수록 점차적으로 외경이 작아지는 경사면(12)이 형성된 밸브(10); A valve 10 installed at a corresponding location of an outdoor unit and an indoor unit of a cooling and heating device, and having a bolt portion 11 formed at a rear side thereof, and an inclined surface 12 having an outer diameter gradually decreasing toward an end portion at a rear end of the bulge portion;
상기 밸브의 경사면에 결합 설치되도록 전방에 나팔모양의 확관부(21)가 형성되고, 외부표면은 수지 코팅시켜 된 냉매 관(20); A trumpet-shaped expansion pipe portion 21 is formed at the front to be coupled to the inclined surface of the valve, and the outer surface of the refrigerant pipe is resin coated;
상기 확관부 내부에 긴밀히 끼워 결합 되도록 선단부는 상기 확관부와 동일한 형상의 내부확장부(51)가 형성되고, 그 내부확장부의 선단은 상기 확관부의 선단을 긴밀히 감싸며 보호하는 보호부(52)가 연장 형성되며, 상기 내부확장부의 후방으로는 냉매 관 내부로 끼워지는 내부끼움관(54)을 형성시켜 된 내부슬리브(50);The front end portion is formed with an internal extension 51 having the same shape as that of the expansion portion so as to be tightly coupled inside the expansion pipe, and the front end of the internal expansion portion tightly surrounds and protects the front end of the expansion pipe. An inner sleeve 50 formed to extend and form an inner fitting pipe 54 fitted into the refrigerant pipe to the rear of the inner extension part;
상기 확관부 외부에 긴밀히 끼워 결합 되도록 선단부는 상기 확관부와 동일한 형상의 외부확장부(31)가 형성되고, 그 외부확장부의 선단은 상기 보호부(52)와 기밀성이 유지되게 면 접촉되는 기밀유지부(32)가 연장 형성되며, 상기 외부확장부의 후방에는 냉매 관 외부로 끼워지는 외부끼움관(35)을 형성시켜 된 외부슬리브(30);The front end portion is formed to be tightly coupled to the outside of the expansion pipe portion is formed with an external extension portion 31 having the same shape as the expansion pipe portion, the front end of the outer extension portion of the airtight holding that the surface contact with the protector 52 to maintain airtightness An outer sleeve 30 formed with an extension portion 32 and having an outer fitting pipe 35 fitted to the outside of the refrigerant pipe at the rear of the outer extension part;
상기 냉매 관에 끼워져 상기 볼트부(11)와 나사결합되면서 상기 냉매 관을 밸브(10)에 긴밀히 결합 고정시키는 너트(40);로 이루어진다.And a nut 40 inserted into the refrigerant pipe and screwed with the bolt part 11 to closely couple and fix the refrigerant pipe to the valve 10.
상기와 같은 구성을 갖는 등록특허 제10-1195425호의 냉매 관 연결구조는, 외부슬리브(30)와 내부슬리브(50)는 스테인레스이고, 냉매 관(20)은 알루미늄이며, 밸브(10)와 너트(40)는 동으로써, 이와 같은 각기 다른 재질의 부품은 열팽창 계수가 서로 상이하기 때문에 에어컨디셔너의 계속적인 작동과 휴지가 반복되면서 상기 각 부품들의 수축 및 팽창율이 상이하여 그로 인한 기밀성 확보가 어려워지고 또 금속들간의 결합이기 때문에 견고한 결합이 이루어졌다 해도 완전한 기밀성 확보가 불가능하여 그로 인한 냉매가스의 누기로 인하여 에어컨디셔너의 냉/난방 효율이 떨어지는 문제점이 있다.Refrigerant pipe connection structure of the Patent No. 10-1195425 has the configuration as described above, the outer sleeve 30 and the inner sleeve 50 is stainless, the refrigerant pipe 20 is aluminum, the valve 10 and the nut ( 40) is copper, and the parts of different materials have different coefficients of thermal expansion, so that the continuous operation and rest of the air conditioner are repeated, resulting in different shrinkage and expansion rates of the parts, thereby making it difficult to secure airtightness. Because of the combination between the two even if a solid coupling is not possible to ensure complete airtight there is a problem that the cooling / heating efficiency of the air conditioner is deteriorated due to leakage of the refrigerant gas.
또 상기 밸브(10)와 너트(40)를 견고히 조이게 되면 냉매 관(20)의 확관부(21)가 도 3에 나타낸 바와 같이 깨지거나 또는 크랙이 발생하는 등의 문제점이 발생하여 기밀성 확보에 어려움이 있고 그에 따른 냉매가스의 누기로 인하여 에어컨디셔너의 냉/난방 효율이 떨어지는 문제점이 있다.In addition, when the valve 10 and the nut 40 are firmly tightened, problems such as cracking or cracking of the expansion pipe portion 21 of the refrigerant pipe 20 may occur, thereby making it difficult to secure airtightness. There is a problem that the cooling / heating efficiency of the air conditioner is deteriorated due to the leakage of the refrigerant gas accordingly.
본 발명은 상기와 같은 문제점을 해소하고자 발명한 것으로, 그 목적은,The present invention is invented to solve the above problems, the object is,
첫째, 알루미늄 재질의 냉매 관 확관부를 보호하고,First, protect the refrigerant pipe expansion part made of aluminum,
둘째, 견고한 체결력 유지를 지속적으로 발휘할 수 있으며,Second, we can continue to maintain a strong clamping force,
셋째, 상기 견고한 체결력 유지로 인한 냉매가스의 누기를 방지하여 에어컨디셔너의 냉/난방 효율을 향상시킬 수 있도록 한 냉매 관의 연결구조를 제공함에 있다.Third, it is to provide a connection structure of the refrigerant pipe to prevent the leakage of the refrigerant gas due to maintaining the tight fastening force to improve the cooling / heating efficiency of the air conditioner.
상기의 목적을 달성하기 위한 본 발명의 과제해결 수단 구성은, 에어컨디셔너의 실내/외기 해당 개소에 설치되는 밸브(110)와, 전방에 나팔모양의 확관부(141)가 형성된 냉매 관(140)과, 상기 확관부의 내측에 끼워 결합되는 내부확관부(131)가 형성된 내부슬리브(130)와, 상기 확관부의 외측과 결합되는 외부확관부(151)가 형성된 외부슬리브(150)와, 확관부, 내부슬리브, 외부슬리브를 수용한 상태에서 상기 밸브(110)와 나사 결합되는 너트(170)로 이루어진 냉매 관의 연결구조에 있어서,The problem solving means of the present invention for achieving the above object is the valve 110 is installed in the indoor / outdoor air corresponding places of the air conditioner, and the refrigerant pipe 140 formed with a trumpet-shaped expansion pipe 141 in the front and An inner sleeve 130 having an inner expanding portion 131 fitted into the expanding portion, an outer sleeve 150 having an outer expanding portion 151 coupled to an outer portion of the expanding portion, and an expanding portion; In the connection structure of the refrigerant pipe made of a nut 170 screwed to the valve 110 in a state that accommodates the inner sleeve, the outer sleeve,
상기 밸브(110)의 하부와 내부확관부(131)의 사이에는 기밀성을 확보함과 동시에 상기 내부확관부를 보호하도록 내부확관부와 부합하는 형상의 제1실링부재(120)가 개제되고, 그 제1실링부재는 내측 면이 상기 밸브의 하부와 긴밀히 면 접촉되고, 외측 면은 상기 내부확관부와 긴밀히 면 접촉되는 확장부(121)와, 그 확장부 하부에 형성되어 상기 내부슬리브(130)에 긴밀히 끼워 결합되는 하부슬리브(123)와, 상기 확장부의 상부에 수직 상향하도록 형성되어 상단이 상기 밸브의 하부와 접촉되는 상부연장부(122)로 이루어지고,Between the lower part of the valve 110 and the inner expansion portion 131, a first sealing member 120 having a shape corresponding to the inner expansion portion is provided to ensure airtightness and protect the inner expansion portion. The first sealing member has an inner surface in close contact with the lower portion of the valve, the outer surface is in close contact with the inner expansion portion 121 is formed in the lower portion and the inner portion of the inner sleeve 130 A lower sleeve 123 that is tightly fitted to and coupled to the upper portion of the upper portion of the expansion part so as to vertically upwardly contact the lower portion of the valve,
상기 너트(170)의 내부와 외부확관부(151)의 사이에는 기밀성을 확보함과 동시에 외부확관부를 보호하도록 외부확관부와 부합하는 형상의 제2실링부재(160)가 개제되고, 그 제2실링부재의 상부에는 상단이 상기 제1실링부재의 확장부(121)와 접촉되는 수직 상향하는 연장부(161)를 형성시켜 된 것으로 이루어진다.Between the inside of the nut 170 and the external expansion unit 151, a second sealing member 160 having a shape corresponding to the external expansion unit is provided to secure airtightness and protect the external expansion unit. The upper portion of the second sealing member is formed by forming an upper upward extension portion 161 in contact with the expansion portion 121 of the first sealing member.
상기와 같은 구성을 갖는 본 발명의 냉매 관 연결구조는, 상기 목적에서 설명한 바와 같이 첫째, 알루미늄재질의 냉매 관 확관부를 보호하고, 둘째, 견고한 체결력 유지를 지속적으로 발휘할 수 있으며, 셋째, 상기 견고한 체결력 유지로 인한 냉매가스의 누기를 방지하여 에어컨디셔너의 냉/난방 효율을 향상시킬 수 있는 효과가 있다.Refrigerant pipe connection structure of the present invention having the configuration as described above, as described in the above object, first, to protect the refrigerant pipe expansion of the aluminum material, and second, to maintain the firm fastening force, and third, the solid By preventing the leakage of refrigerant gas due to maintaining the tightening force has an effect that can improve the cooling / heating efficiency of the air conditioner.
도 1은 종래 제1실시 예의 냉매 관 연결구조를 설명하기 위한 단면 구성도,1 is a cross-sectional view illustrating a refrigerant pipe connection structure of a first embodiment of the present invention;
도 2는 종래 제2실시 예의 냉매 관 연결구조를 설명하기 위한 단면 구성도,2 is a cross-sectional view illustrating a refrigerant pipe connection structure of a conventional second embodiment;
도 3은 종래 알루미늄 냉매 관의 훼손상태를 나타내기 위한 발췌 사시도,3 is an exploded perspective view illustrating a damaged state of a conventional aluminum refrigerant pipe;
도 4는 본 발명의 냉매 관 연결구조를 설명하기 위한 분해 사시도,4 is an exploded perspective view illustrating the refrigerant pipe connection structure of the present invention;
도 5는 본 발명의 냉매 관 연결구조를 설명하기 위한 분해 단면도,5 is an exploded cross-sectional view illustrating a refrigerant pipe connection structure of the present invention;
도 6은 본 발명의 냉매 관 연결구조를 설명하기 위한 확대 결합 단면도.6 is an enlarged cross-sectional view illustrating the refrigerant pipe connection structure of the present invention.
이하 본 발명의 냉매 관 연결구조에 대한 실시 예를 첨부 도면 도 4 내지 도 6을 참조하여 설명하면 다음과 같다.Hereinafter, an embodiment of a refrigerant pipe connection structure of the present invention will be described with reference to FIGS. 4 to 6.
본 발명의 냉매 관 연결구조는, 냉매 관(140)의 확관부(141)가 밸브(110)의 테이퍼부(113)에 긴밀하게 결합되어 기밀성을 유지하도록 하기 위하여 너트(170)를 냉매 관(140)에 끼운 후 볼트(110)와 너트(170)를 결합시키고 나사 조임하게 되면 밸브(110)의 숫 나사(112)와 너트(170)의 암나사(172)가 상호 나사 결합되면서 냉매 관(140)의 확관부(141)가 밸브(110)의 테이퍼부(113)에 긴밀하고 견고하게 체결된다.In the refrigerant pipe connection structure of the present invention, the nut 170 is connected to the refrigerant pipe 140 so that the expansion pipe 141 of the refrigerant pipe 140 is tightly coupled to the tapered portion 113 of the valve 110 to maintain airtightness. 140 and the bolt 110 and the nut 170 are coupled and screwed together, the male screw 112 of the valve 110 and the female screw 172 of the nut 170 are screwed together and the refrigerant pipe 140 ), The expansion pipe 141 is tightly and firmly fastened to the tapered portion 113 of the valve 110.
이때 상기 확관부(141)가 형성된 냉매 관(140)의 재질은 알루미늄이고 밸브(110)는 동, 철, 스테인레스 중 어느 하나임으로 너트(170)를 너무 강하게 조이게 되면 냉매 관(140)의 확관부(141)와 밸브(110)의 테이퍼부(113) 결합력이 강해지면서 확관부(141)가 도 3에 나타낸 바와 같이 훼손되거나 또는 파손되는 문제점이 발생하여 확관부(141)와 테이퍼부(113) 간의 결합력이 와해 되는 문제점이 발생하여 냉매의 누기가 발생하게 된다.In this case, the material of the refrigerant pipe 140 in which the expansion pipe part 141 is formed is aluminum, and the valve 110 is one of copper, iron, and stainless steel, and thus, when the nut 170 is tightened too strongly, the expansion pipe of the refrigerant pipe 140 is formed. As the coupling force of the taper portion 113 of the valve 141 and the valve 110 becomes stronger, the expansion portion 141 is damaged or broken as shown in FIG. 3, and thus the expansion portion 141 and the tapered portion 113 are generated. There is a problem that the bonding force between the breakdown occurs and leakage of the refrigerant occurs.
따라서 본 발명은 상기 냉매 관(140)의 확관부(141)가 훼손되거나 또는 파손되는 문제점을 해소하기 위하여 상기 냉매 관(140)의 확관부(141)의 내측 면과 밸브(110)의 테이퍼부(113) 외측 면 사이에 상기 냉매 관(140)의 확관부(141)와 부합하는 형상의 내부확관부(131)가 형성된 내부슬리브(130)를 개재시키고, 상기 냉매 관(140)의 확관부(141) 외측 면에는 외부확관부(151)가 형성된 외부슬리브(150)를 개재시켜 상기 냉매 관(140)의 확관부(141) 내/외측 면을 내부확관부(131)와 외부확관부(151)가 감싸며 긴밀히 밀착 고정킴으로 인하여 상기 냉매 관(140)으로 진행되는 냉매의 누기를 방지함은 물론, 냉매 관(140)의 확관부(141)를 보호하게 되는 것이다.Therefore, in order to solve the problem that the expansion pipe 141 of the refrigerant pipe 140 is damaged or broken, the present invention provides an inner surface of the expansion pipe 141 of the refrigerant pipe 140 and a tapered portion of the valve 110. (113) An expansion pipe portion of the refrigerant pipe 140 is interposed between an outer surface of the refrigerant pipe 140 and an inner sleeve 130 having an internal expansion pipe portion 131 having a shape corresponding to the expansion pipe portion 141 of the refrigerant pipe 140 is formed. The inner side and the outer side of the expansion part 141 of the expansion pipe 141 of the refrigerant pipe 140 are disposed on the outer surface of the refrigerant pipe 140 through the outer sleeve 150 having the external expansion pipe 151 formed therein. 151 is wrapped and tightly fixed to prevent the leakage of the refrigerant to the refrigerant pipe 140, as well as to protect the expansion portion 141 of the refrigerant pipe 140.
한편 상기 내부확관부(131)의 상부는 하향 절곡시켰고, 외부확관부(151)의 상부는 상향 수직하는 연장부(152)를 형성시켰는데, 그 이유는 도 6에 나타낸 바와 같이 볼트(110)와 너트(170)을 이용하여 냉매 관(140)을 고정시켰을 때 냉매 관(140)의 확관부(141) 상단은 내부확관부(131)의 상부가 감싸고 그 내부확관부(131)의 선단은 외부확관부(151)의 내측면에 긴밀히 접촉됨으로 상기 냉매 관(140)의 확관부(141)를 보호함은 물론, 기밀성을 확보하게 되는 것이다.Meanwhile, the upper portion of the inner expansion portion 131 is bent downward, and the upper portion of the outer expansion portion 151 forms an extension portion 152 that is vertically upward, because the bolt 110 is shown in FIG. 6. When the refrigerant pipe 140 is fixed using the nut 170, the upper end of the expansion pipe 141 of the refrigerant pipe 140 is wrapped around the upper portion of the internal expansion pipe 131, and the tip of the internal expansion pipe 131 is By being in close contact with the inner surface of the external expansion pipe 151 to protect the expansion pipe 141 of the refrigerant pipe 140, as well as to ensure airtightness.
상기와 같이 내부확관부(131)의 상부 하향 절곡시킨 부분과 외부확관부(151)가 상기 냉매 관(140)의 확관부(141) 끝단 부분을 보호하는 원리는, 상기 냉매 관(140)의 확관부(141) 상단이 도 6에 나타낸 바와 같이 밸브(110)의 테이퍼부(113)와 직접 접촉되지 않고 내부확관부(131)의 상부 하향 절곡시킨 부분과 외부확관부(151)의 연장부(152)에 의해 수용되기 때문이다.As described above, the upper downward bent portion of the inner expansion portion 131 and the outer expansion portion 151 protect the end portion of the expansion portion 141 of the refrigerant pipe 140. As shown in FIG. 6, the upper end of the expansion pipe 141 is not directly in contact with the tapered portion 113 of the valve 110, and the upper downward bent portion of the internal expansion pipe 131 and the extension of the external expansion pipe 151. Because it is accepted by 152.
그리고 상기 외부슬리브(150)의 외부확관부(151)와 내부슬리브(130)의 내부확관부(131) 형상은 냉매 관(140)의 확관부(141) 형상과 부합하는 형상으로 형성시킴으로써 냉매 관(140)의 확관부(141)를 긴밀히 감싸며 보호함과 동시에 기밀성을 유지하게 되는 것이다.In addition, the external expansion unit 151 of the outer sleeve 150 and the internal expansion unit 131 of the inner sleeve 130 are formed in a shape corresponding to the shape of the expansion unit 141 of the refrigerant pipe 140 to form a refrigerant pipe. The expansion portion 141 of the 140 is tightly wrapped to protect and maintain confidentiality at the same time.
또한 상기 외부슬리브(150)의 관(153)에는 그 관(153)의 내측을 향하는 앵커 편(154)이 형성되는데 상기 앵커 편(154)을 형성시킨 이유는, 외부슬리브(150)를 냉매 관(140)에 끼운 후 상기 앵커 편(154)의 끝단이 상기 냉매 관(140)의 수지코팅 층(142)과 긴밀히 접촉되면서 고정되어 상기 냉매 관(140)에 끼워 결합된 외부슬리브(150)가 상기 냉매 관(140)에 끼워 결합된 위치로부터 위치이탈되지 않고 안전하게 고정 되도록 하기 위함이다. In addition, the tube 153 of the outer sleeve 150 is formed with an anchor piece 154 facing inward of the tube 153. The reason for forming the anchor piece 154 is that the outer sleeve 150 is a refrigerant pipe. After being inserted into the 140, the end of the anchor piece 154 is fixed while being in close contact with the resin coating layer 142 of the refrigerant pipe 140, the outer sleeve 150 is fitted into the refrigerant pipe 140 is coupled This is to be secured without being separated from the position coupled to the refrigerant pipe 140 is coupled.
상기와 같은 역할을 하는 상기 앵커 편(154)은 상부에서 하부방향으로 기울기를 갖도록 형성시킴이 바람직하나 그 외에도 외부확관부(151)와 확관부(141)를 결합시킨 후 그 결합위치로부터 외부슬리브(150)가 위치이탈되지 않는 구조의 앵커 편(154)이면 모두 가능하다.The anchor piece 154, which serves as described above, is preferably formed to have an inclination from the top to the bottom direction, but in addition, the outer sleeve 151 and the expansion pipe 141 are coupled to each other, and then the outer sleeve from the coupling position thereof. As long as 150 is the anchor piece 154 of the structure which does not deviate, it is all possible.
또 상기 외부슬리브(150)의 관(153)에는 그 관(153)의 외부를 향하는 돌기(155)가 형성되는데, 그 돌기(155)를 형성시키는 이유는, 외부슬리브(150)가 너트(170)의 안착부(173)에 안착된 후 상기 돌기(155)가 돌기 홈(174)에 결합되어 외부슬리브(150)의 위치이탈을 방지하도록 하기 위함이다.In addition, the tube 153 of the outer sleeve 150 is formed with a protrusion 155 facing the outside of the tube 153, the reason for forming the protrusion 155, the outer sleeve 150 is a nut 170 The protrusion 155 is coupled to the protrusion groove 174 after being seated on the seating portion 173 of the bottom) to prevent the positional deviation of the outer sleeve 150.
따라서 상기 돌기(155)가 너트(170)의 돌기 홈(174)에 결합되면 볼트(110)를 과도하게 조여 너트(170)와 결합하여도 상기 외부슬리브(150)가 너트(170) 후방으로 밀려나가지 않음으로 냉매관(140)의 확관부(141) 결합력이 향상되는 것이다.Therefore, when the protrusion 155 is coupled to the protrusion groove 174 of the nut 170, the outer sleeve 150 is pushed to the rear of the nut 170 even when the bolt 110 is excessively tightened to engage the nut 170. The coupling force of the expansion pipe 141 of the refrigerant pipe 140 is not improved.
상기와 같이 내부슬리브(130)와 외부슬리브(150)가 냉매 관(140)의 확관부(141) 내측 및 외측을 감싸며 결합되게 되면 상기 내부슬리브(130)는 밸브(110)의 테이퍼부(113)와 접촉되고 외부슬리브(150)는 너트(170)의 안착부(173)와 접촉되게 되는데, 이때 상기 내부슬리브(130), 외부슬리브(150), 너트(170), 밸브(110)는 모두가 금속임으로 결합력 즉 기밀성이 약해지는 단점이 발생함으로 이를 방지하기 위하여 내부슬리브(130)의 내부확관부(131)와 밸브(110)의 테이퍼부(113) 사이 및 외부슬리브(150)의 외부확관부(151)와 너트(170)의 안착부(173) 사이에 각각의 제1실링부재(120)와 제2실링부재(160)를 개재시켜 기밀성을 확보함은 물론, 내부슬리브(130)와 외부슬리브(150)를 보호하도록 하였다.As described above, when the inner sleeve 130 and the outer sleeve 150 are coupled to surround the inside and the outside of the expansion pipe 141 of the refrigerant pipe 140, the inner sleeve 130 is tapered of the valve 110. ) And the outer sleeve 150 is in contact with the seating portion 173 of the nut 170, wherein the inner sleeve 130, the outer sleeve 150, the nut 170, the valve 110 are all Is a metal, the weakness of the coupling force, that is, the airtightness is weakened to prevent this occurs between the inner expansion portion 131 of the inner sleeve 130 and the tapered portion 113 of the valve 110 and the external expansion of the outer sleeve 150 The first sealing member 120 and the second sealing member 160 are interposed between the pipe part 151 and the seating part 173 of the nut 170 to secure airtightness, as well as the inner sleeve 130 and To protect the outer sleeve 150.
상기 제1실링부재(120)와 제2실링부재(160)는 수축 및 팽창력을 갖는 재질로 이루어지기 때문에 상기 내부슬리브(130)와 외부슬리브(150)를 보호함은 물론, 외부 충격에도 그 충격을 완충하고 또 긴밀한 결합력을 유지할 수 있는 것이다. Since the first sealing member 120 and the second sealing member 160 are made of a material having a contraction and expansion force, not only the inner sleeve 130 and the outer sleeve 150 are protected, but also the external shock. It will be able to buffer and maintain a close bond.
이와 같은 작용을 하는 상기 제1실링부재(120)는 내부확관부(131)의 형상과 부합하는 형상으로 형성되고, 제2실링부재(160)의 형상은 외부확관부(151)의 형상과 부합하는 형상으로 형성됨이 바람직하다. 그 이유는, 긴밀한 접촉과 그에 따른 기밀성을 확보 및 내부슬리브(130)와 외부슬리브(150)를 보호하기 위함이다.The first sealing member 120 acting as described above is formed in a shape that matches the shape of the inner expanding portion 131, and the shape of the second sealing member 160 matches the shape of the outer expanding portion 151. It is preferable that it is formed in the shape to be. The reason is to secure close contact and thus airtightness and to protect the inner sleeve 130 and the outer sleeve 150.
상기 제1실링부재(120)의 확장부(121)를 기준으로 상부에 상부연장부(122)를 형성시킨 이유는, 도 6에 나타낸 바와 같이 상기 상부연장부(122)가 밸브(110)에 형성된 숫 나사(112)의 하단까지 수용하며 감싸 기밀성을 향상시키기 위하이고, 또 상기 확장부(121)를 기준으로 하부에 하부슬리브(123)를 형성시킨 이유는, 냉매관(140)에 상기 하부슬리브(123)가 끼워 결합되어 상기 제1실링부재(120)의 안전한 결합이 이루어지도록 하기 위함이다.The reason why the upper extension part 122 is formed on the upper part of the first sealing member 120 based on the extension part 121 is that the upper extension part 122 is connected to the valve 110 as shown in FIG. 6. The lower sleeve 123 is formed in the lower portion based on the expansion part 121 so as to be accommodated to the lower end of the formed male screw 112 and to improve airtightness. The sleeve 123 is fitted to be coupled to ensure a secure coupling of the first sealing member 120.
또한 상기 제2실링부재(160)의 상부에 연장부(161)를 형성시킨 이유는, 본 발명의 냉매 관 연결구조에 의한 냉매관(140) 결합 완료 후 상기 연장부(161)의 상단이 도 6에 나타낸 바와 같이 제1실링부재(120)의 확장부(121)와 긴밀히 접촉되어 기밀성이 더욱 향상되도록 하기 위함이다. In addition, the reason why the extension part 161 is formed on the upper part of the second sealing member 160 is that the upper end of the extension part 161 after the completion of the refrigerant pipe 140 coupling by the refrigerant pipe connection structure of the present invention. As shown in FIG. 6, the airtightness is further improved by being in intimate contact with the expansion part 121 of the first sealing member 120.
한편 상기 냉매 관(140)의 외부 표면은 수지 코팅되어 수지코팅 층(142)을 형성하고 있기 때문에 보온의 효과는 물론, 내부식성이 향상되고 그와 동시에 충격 완충력을 갖으며, 또 외부확관부(151)와의 결합력이 좋아진다.On the other hand, since the outer surface of the refrigerant pipe 140 is resin-coated to form the resin coating layer 142, the effect of heat retention, as well as corrosion resistance is improved and at the same time has an impact buffering force, 151) and the bonding force is improved.
이상에서 설명한 바와 같은 본 발명의 냉매 관 연결구조는 결합완료 후 도 6에 나타낸 바와 같이 제1실링부재(120)의 확장부(121) 및 상부연장부(122)가 밸브(110)의 테이퍼부(113)를 완전히 감싸면서 결합되고, 하부슬리브(123)가 내부슬리브(130)에 긴밀히 끼워 결합됨과 동시에 제2실링부재(160)가 외부슬리브(150)의 외부확관부(151)를 감싸며 연장부(161)의 상단이 제1실링부재(120)의 외부 면과 긴밀히 접촉되기 때문에 완전한 기밀성이 확보된다.In the refrigerant pipe connection structure of the present invention as described above, the expansion portion 121 and the upper extension portion 122 of the first sealing member 120 are tapered portions of the valve 110 as shown in FIG. 6 after completion of the coupling. Completely wrapped 113 is coupled, the lower sleeve 123 is tightly coupled to the inner sleeve 130 and at the same time the second sealing member 160 wraps around the outer expansion portion 151 of the outer sleeve 150 to extend Since the upper end of the portion 161 is in intimate contact with the outer surface of the first sealing member 120, complete airtightness is secured.
상술한 바와 같은 본 발명의 냉매 관 연결구조는, 상기 효과에서 설명한 바와 같이 알루미늄재질의 냉매 관 확관부를 보호하고, 견고한 체결력 유지를 지속적으로 발휘할 수 있으며, 상기 견고한 체결력 유지로 인한 냉매가스의 누기를 방지하여 에어컨디셔너의 냉/난방 효율을 향상시킬 수 있는 장점이 있다.The refrigerant pipe connection structure of the present invention as described above, as described in the above effect, can protect the refrigerant pipe expansion portion of the aluminum material, and can maintain the firm tightening force continuously, the leakage of refrigerant gas due to the solid fastening force maintenance There is an advantage to improve the cooling / heating efficiency of the air conditioner by preventing.

Claims (6)

  1. 에어컨디셔너의 실내/외기 해당 개소에 설치되는 밸브(110)와, 전방에 나팔모양의 확관부(141)가 형성된 냉매 관(140)과, 상기 확관부의 내측에 끼워 결합되는 내부확관부(131)가 형성된 내부슬리브(130)와, 상기 확관부의 외측과 결합되는 외부확관부(151)가 형성된 외부슬리브(150)와, 확관부, 내부슬리브, 외부슬리브를 수용한 상태에서 상기 밸브(110)와 나사 결합되는 너트(170)로 이루어진 냉매 관의 연결구조에 있어서,A valve 110 installed at a corresponding indoor / outdoor air conditioner, a refrigerant pipe 140 having a trumpet-shaped expansion pipe 141 formed at the front, and an internal expansion pipe 131 which is fitted inside the expansion pipe. The inner sleeve 130 is formed, the outer sleeve 150 is formed with an outer expansion portion 151 is coupled to the outside of the expansion pipe portion, and the expansion unit, the inner sleeve, the outer sleeve in the state accommodated the valve 110 In the connection structure of the refrigerant pipe consisting of a nut 170 screwed with,
    상기 밸브(110)의 하부와 내부확관부(131)의 사이에는 기밀성을 확보함과 동시에 상기 내부확관부를 보호하도록 내부확관부와 부합하는 형상의 제1실링부재(120)가 개제되고, 그 제1실링부재는 내측 면이 상기 밸브의 하부와 긴밀히 면 접촉되고, 외측 면은 상기 내부확관부와 긴밀히 면 접촉되는 확장부(121)와, 그 확장부 하부에 형성되어 상기 내부슬리브(130)에 긴밀히 끼워 결합되는 하부슬리브(123)와, 상기 확장부의 상부에 수직 상향하도록 형성되어 상단이 상기 밸브의 하부와 접촉되는 상부연장부(122)로 이루어지고,Between the lower part of the valve 110 and the inner expansion portion 131, a first sealing member 120 having a shape corresponding to the inner expansion portion is provided to ensure airtightness and protect the inner expansion portion. The first sealing member has an inner surface in close contact with the lower portion of the valve, the outer surface is in close contact with the inner expansion portion 121 is formed in the lower portion and the inner portion of the inner sleeve 130 A lower sleeve 123 that is tightly fitted to and coupled to the upper portion of the upper portion of the expansion part so as to vertically upwardly contact the lower portion of the valve,
    상기 너트(170)의 내부와 외부확관부(151)의 사이에는 기밀성을 확보함과 동시에 외부확관부를 보호하도록 외부확관부와 부합하는 형상의 제2실링부재(160)가 개제되고, 그 제2실링부재의 상부에는 상단이 상기 제1실링부재의 확장부(121)와 접촉되는 수직 상향하는 연장부(161)를 형성시켜 된 것을 특징으로 하는 냉매 관의 연결구조.Between the inside of the nut 170 and the external expansion unit 151, a second sealing member 160 having a shape corresponding to the external expansion unit is provided to secure airtightness and protect the external expansion unit. 2, the upper portion of the sealing member is connected to the refrigerant pipe, characterized in that the upper end is formed in the vertical upward extension portion 161 in contact with the expansion portion 121 of the first sealing member.
  2. 제1항에 있어서,The method of claim 1,
    상기 냉매 관(140)은, 알루미늄재질이고, 그 알루미늄재질의 외부는 수지코팅하여 수지코팅 층(142)을 형성시켜 된 것을 특징으로 하는 냉매 관의 연결구조.The refrigerant pipe 140 is made of an aluminum material, the outer structure of the aluminum material is a resin coating layer of the refrigerant pipe, characterized in that the resin coating layer 142 is formed.
  3. 제1항에 있어서,The method of claim 1,
    상기 밸브(110)는, 중앙에 냉매유로(111)가 관통 형성되고, 하부는 상기 제1실링부재(120)의 확장부(121) 형상과 부합하도록 테이퍼부(113)가 형성되며, 외부 중앙부에는 숫 나사(112)가 형성된 것을 특징으로 하는 냉매 관의 연결구조.The valve 110 has a coolant flow passage 111 formed at a center thereof, and a lower portion thereof is formed with a tapered portion 113 to match the shape of the expansion portion 121 of the first sealing member 120. The connection structure of the refrigerant pipe, characterized in that the male screw 112 is formed.
  4. 제1항에 있어서,The method of claim 1,
    상기 내부확관부(131)의 상부는, 상기 냉매 관(140)의 확관부(141) 상단을 보호하도록 하향 절곡시켜 된 것을 특징으로 하는 냉매 관의 연결구조. The upper portion of the inner expansion portion (131), the refrigerant pipe connection structure, characterized in that bent downward to protect the upper end of the expansion portion (141) of the refrigerant pipe (140).
  5. 제1항에 있어서,The method of claim 1,
    상기 외부슬리브(150)는, 상부에 냉매 관(140)의 확관부(141)를 수용하는 외부확관부(151)가 형성되고, 그 외부확관부의 상부에는 연장부(152)가 형성되며, 상기 외부확관부의 하부에는 냉매 관(140)이 끼워 결합되는 관(153)을 형성하되, 그 관에는 앵커 편(154)이 내향되게 형성되고, 상기 앵커 편이 형성된 상기 관의 하부에는 너트와 긴밀히 끼워 결합되는 돌기(155)를 형성시켜 된 것을 특징으로 하는 냉매 관의 연결구조. The outer sleeve 150, the outer expansion portion 151 for receiving the expansion portion 141 of the refrigerant pipe 140 is formed on the upper portion, the extension portion 152 is formed on the upper portion of the outer expansion portion, A coolant pipe 140 is inserted into a lower portion of the outer expansion pipe portion to form a pipe 153, the anchor piece 154 is formed inwardly, the lower portion of the pipe is formed in close contact with the nut Connection structure of the refrigerant pipe, characterized in that to form a projection 155 is fitted.
  6. 제1항에 있어서,The method of claim 1,
    상기 너트(170)에는 중앙을 관통하는 관통 홀(171)이 형성되고, 그 관통 홀의 상부에는 암나사(172)가 형성되며, 그 암나사의 하부에는 제2실링부재(160)가 안착되는 안착부(173)가 형성되고, 그 안착부의 하부에는 돌기 홈(174)을 형성시켜 된 것을 특징으로 하는 냉매 관의 연결구조. The nut 170 has a through hole 171 penetrating through the center thereof, a female screw 172 is formed at an upper portion of the through hole, and a seating portion in which the second sealing member 160 is seated under the female screw. 173, and a projection groove 174 is formed in the lower portion of the seating portion.
PCT/KR2015/007427 2014-07-21 2015-07-17 Connection structure of refrigerant tube WO2016013808A1 (en)

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