KR20200008939A - refrigerant pipe connector for air conditioner of outdoor fan - Google Patents

refrigerant pipe connector for air conditioner of outdoor fan Download PDF

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Publication number
KR20200008939A
KR20200008939A KR1020190034934A KR20190034934A KR20200008939A KR 20200008939 A KR20200008939 A KR 20200008939A KR 1020190034934 A KR1020190034934 A KR 1020190034934A KR 20190034934 A KR20190034934 A KR 20190034934A KR 20200008939 A KR20200008939 A KR 20200008939A
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KR
South Korea
Prior art keywords
inclined surface
refrigerant pipe
compression ring
screw portion
compression
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KR1020190034934A
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Korean (ko)
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KR102158368B1 (en
Inventor
김환영
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김환영
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Application filed by 김환영 filed Critical 김환영
Priority to EP19800685.0A priority Critical patent/EP3770477A4/en
Priority to US17/050,066 priority patent/US11054155B2/en
Priority to JP2020560442A priority patent/JP6896314B2/en
Priority to PCT/KR2019/004325 priority patent/WO2019216558A1/en
Priority to CN201980028549.2A priority patent/CN112041605B/en
Publication of KR20200008939A publication Critical patent/KR20200008939A/en
Application granted granted Critical
Publication of KR102158368B1 publication Critical patent/KR102158368B1/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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/26—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses specially adapted for hoses of metal
    • 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
    • F16L19/05—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 with a rigid pressure ring between the screwed member and the exterior of the flared pipe end
    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/24—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with parts screwed directly on or into the hose
    • 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

Abstract

Disclosed is a resin-coated aluminum pipe connector for an air conditioner outdoor unit for jointly connecting a refrigerant pipe to a service valve in a sealed state by a one-touch method. A resin-coated aluminum pipe connector for an air conditioner outdoor unit, according to one embodiment of the present specification, comprises: a refrigerant pipe of an aluminum material having an expansion portion formed at an end thereof; a service valve having a first inclined surface formed at an end thereof and including a connection port having a first screw portion formed on an outer circumference thereof; a first compression ring having an inclined surface corresponding to the first inclined surface at one end of an inner circumference thereof and having a first catching protrusion formed at the other end of the inner circumference; a second compression ring having a 2-1 inclined surface corresponding to the expansion portion formed therein and having an accommodation side wall extending above the 2-1 inclined surface; a sealing member having a second catching protrusion corresponding to the first catching protrusion formed on an outer circumference thereof and having a lower end accommodated in the accommodation side wall, and for sealing a gap between contact surfaces of the first and second compression rings and for preventing the first and second compression rings from being in contact with the expansion portion of the refrigerant pipe; and a fastener having a second screw portion corresponding to the first screw portion formed at an inner circumferential inlet side thereof, and having a seating portion on which the first and second compression rings are seated formed under the second screw portion.

Description

에어컨 실외기용 수지코팅 알루미늄 배관 연결구{refrigerant pipe connector for air conditioner of outdoor fan}Refrigerant pipe connector for air conditioner of outdoor fan

본 명세서는 에어컨 실외기용 배관 연결구에 관한 것으로, 보다 구체적으로 설명하면, 실외기의 서비스밸브에 냉매관(수지코팅 알루미늄 배관을 말함)을 원터치방식에 의해 실링상태로 이음연결하기 위한, 에어컨 실외기용 수지코팅 알루미늄 배관 연결구에 관한 것이다.The present specification relates to a pipe connector for an outdoor unit of an air conditioner. More specifically, the resin for an air conditioner outdoor unit is used to jointly connect a refrigerant pipe (referring to a resin coated aluminum pipe) to a service valve of an outdoor unit in a sealing state by a one-touch method. Relates to coated aluminum tubing connections.

본 명세서에서 달리 표시되지 않는 한, 이 섹션에 설명되는 내용들은 이 출원의 청구항들에 대한 종래 기술이 아니며, 이 섹션에 포함된다고 하여 종래 기술이라고 인정되는 것은 아니다.Unless otherwise indicated herein, the contents described in this section are not prior art to the claims of this application, and inclusion in this section is not admitted to be prior art.

일반적으로, 에어컨의 냉매 배관, 가스 배관 등 각종 배관을 소정의 기계적 장치에 연결하기 위해서는 배관의 연결구조가 필요하게 된다.In general, in order to connect various pipes such as refrigerant pipes, gas pipes of an air conditioner to a predetermined mechanical device, a pipe connection structure is required.

이러한 배관의 연결구조는 기본적으로 내부의 유체 누수 또는 누설되는 것을 방지하여야 하며, 진동이나 외부의 충격에 의해 이완되지 않아야 하는 등의 조건을 충족시켜야 된다.The connection structure of these pipes should basically prevent the leakage or leakage of fluid inside and satisfy conditions such as not being relaxed by vibration or external shock.

일 예로서, 배관의 연결구조는 배관의 단부를 나팔관처럼 확관시키되, 확관부를 중간에 끼운 상태에서 너트와 볼트를 상호 결합하여 조임에 따라 확관부가 볼트의 선단부에 밀착됨으로써 기밀을 유지할 수 있다.As an example, the connection structure of the pipe may extend the end of the pipe like a fallopian tube, but may maintain airtightness as the expansion pipe is in close contact with the tip of the bolt as the nut and the bolt are coupled to each other while tightening the nut with the bolt in the middle of the expansion pipe. .

도면에는 미 도시되었으나, 배관(에어컨의 냉매 배관)의 확관부와 볼트 사이에 합성수지재 등으로 성형되는 슬리브를 게재시켜 이음연결하게 되는 데, 배관을 이음연결하는 작업현장에서 작업자가 너트와 볼트를 상호 결합하여 체결시 필요이상으로 힘을 가하여 체결하게 된다.Although not shown in the drawing, a sleeve formed of synthetic resin or the like is placed between the expansion pipe and the bolt of the pipe (refrigerant pipe of the air conditioner) to make a joint connection. When combined with each other, tightening is applied more than necessary.

이로 인해, 볼트 선단부와 접촉되는 슬리브가 필요이상의 외력을 받아 형상 변형(크랙 또는 찌끄러짐 발생)이 발생될 경우에 형상 변형으로 인해 틈새가 발생되고, 틈새를 통해 냉매가 누출될 수 있는 문제점을 갖게 된다.As a result, when the sleeve in contact with the tip of the bolt receives an external force more than necessary, and a shape deformation (crack or dent) occurs, a gap is generated due to the shape deformation, and the refrigerant may leak through the gap. do.

대한민국 특허출원 제10-2015-0094921호에 배관의 연결구조가 게시되어 있다.Korean Patent Application No. 10-2015-0094921 discloses a connection structure of pipes.

본 명세서의 실시예는, 서비스밸브와 냉매관을 이음연결하기 위해 체결시킬 경우, 냉매관의 확관부 및 이를 지지하는 압축링의 파손으로 인해 발생되는 틈새를 통해 냉매 누출되는 것을 방지할 수 있도록 한, 에어컨 실외기용 수지코팅 알루미늄 배관 연결구와 관련된다.Embodiment of the present disclosure, when fastening the service valve and the refrigerant pipe to the joint connection, to prevent the refrigerant leak through the gap caused by the breakage of the expansion pipe of the refrigerant pipe and the compression ring for supporting it, Related to resin-coated aluminum tubing connections for outdoor air conditioners.

본 명세서의 실시예는, 냉매관을 이음연결하는 작업경험이 부족한 작업자가 냉매관의 확관부 및 이를 지지하는 압축링을 파손시키지않고 쉽게 이음연결할 수 있도록 한, 에어컨 실외기용 수지코팅 알루미늄 배관 연결구와 관련된다.Embodiments of the present disclosure, associated with the resin-coated aluminum pipe connector for outdoor air conditioner, which allows the worker who has insufficient working experience to jointly connect the refrigerant pipe, can be easily connected without damaging the expansion part of the refrigerant pipe and the compression ring supporting the refrigerant pipe. do.

본 명세서의 실시예는, 이종 재질의 압축링과 냉매관이 상호 접촉되어 갈바닉(galvanic) 부식되는 것을 방지할 수 있도록 한, 에어컨 실외기용 수지코팅 알루미늄 배관 연결구와 관련된다.Embodiments of the present specification relate to a resin coated aluminum tubing connector for an outdoor unit of an air conditioner, which is capable of preventing galvanic corrosion due to mutual contact between a compression ring of a different material and a refrigerant pipe.

상기 및 기타 본 명세서의 목적을 달성하기 위하여 본 명세서의 일 실시예에 따르면,According to one embodiment of the present specification in order to achieve the above and other objects of the present specification,

단부에 확관부가 형성되는 알루미늄재의 냉매관;A refrigerant pipe made of aluminum having an expansion pipe portion formed at an end thereof;

단부에 제1경사면이 형성되고, 외주연에 제1나사부가 형성되는 연결포트를 포함하는 서비스밸브;A service valve including a connection port having a first inclined surface at an end thereof and having a first screw portion formed at an outer circumference thereof;

상기 제1경사면에 대응되는 경사면이 내주연 일단에 형성되고, 내주연 타단에 제1걸림턱이 형성되는 제1압축링;A first compression ring having an inclined surface corresponding to the first inclined surface at one end of the inner circumference and having a first catching jaw formed at the other end of the inner circumference;

상기 확관부에 대응되는 제2-1경사면이 내측에 형성되고, 상기 제2-1경사면 상부로 수용측벽이 연장형성되는 제2압축링;A second compression ring having a second inclined surface corresponding to the expansion pipe portion formed therein and an accommodation side wall extending above the second inclined surface;

상기 제1걸림턱에 대응되는 제2걸림턱이 외주연에 형성되고 상기 수용측벽에 하단이 수용되며, 상기 제1,2압축링의 상호 밀착면 틈새를 씰링처리하며, 상기 제1,2압축링과 냉매관의 확관부가 상호 접촉되는 것을 차단하기 위한 씰링재;A second catching jaw corresponding to the first catching jaw is formed on the outer circumference and has a lower end accommodated in the receiving side wall, and seals a gap between the close contact surfaces of the first and second compression rings, and the first and second compression rings. Sealing material for blocking the expansion of the refrigerant pipe contact each other;

상기 제1나사부에 대응되는 제2나사부가 내주연 입구측에 형성되고, 상기 제1,2압축링이 안착되는 안착부가 상기 제2나사부 밑으로 형성되는 체결구;를 구비하는 것을 특징으로 하는 에어컨 실외기용 수지코팅 알루미늄 배관 연결구를 제공한다.And a fastener in which a second screw portion corresponding to the first screw portion is formed at an inner circumferential inlet side, and a seating portion in which the first and second compression rings are seated is formed under the second screw portion. Provide resin coated aluminum pipe connections.

상기 및 기타 본 명세서의 목적을 달성하기 위하여 본 명세서의 다른 실시예에 따르면,According to another embodiment of the present specification to achieve the above and other objects of the present specification,

알루미늄재의 냉매관;A refrigerant tube made of aluminum;

중앙의 관통홀 외측으로 형성되는 제1걸림턱과, 상기 제1걸림턱 외측단에 형성되는 경사면과, 상기 경사면 외측단에 형성되는 제2걸림턱과, 외주연에 제1나사부가 형성되는 연결포트를 포함하는 서비스밸브;A first threaded jaw formed outside the center through hole, an inclined surface formed at the outer end of the first caught jaw, a second caught jaw formed at the outer end of the inclined surface, and a first screw portion formed at an outer periphery A service valve comprising a port;

상기 서비스밸브의 경사면에 대응되는 경사면이 외주연 일단에 형성되며, 압축시 상기 냉매관 외주연 틈새를 씰링처리하기 위한 제1압축링;A first compression ring having an inclined surface corresponding to the inclined surface of the service valve at one end of the outer circumference, and sealing the outer circumference of the refrigerant pipe during compression;

상기 제1압축링이 안착되는 걸림턱이 내주연에 형성되고, 외주연 일측에 압축시 탄성변형되도록 경사면이 형성되며, 상기 서비스밸브의 제2걸림턱에 안착되는 제2압축링;A second compression ring seated on an inner circumferential edge of the first compression ring to be seated on an inner circumference, and having an inclined surface to elastically deform when compressed on one side of the outer circumference, and seated on the second locking jaw of the service valve;

상기 제1나사부에 대응되는 제2나사부가 내주연 입구측에 형성되고, 중앙에상기 냉매관이 관통되게 형성되는 관통홀과, 상기 관통홀 내측단에 상기 제2압축링의 경사면에 대응되는 경사면이 형성되는 체결구;를 구비하는 것을 특징으로 하는 에어컨 실외기용 수지코팅 알루미늄 배관 연결구를 제공한다.The second screw portion corresponding to the first screw portion is formed at the inner circumferential inlet side, the through hole is formed through the refrigerant pipe in the center and the inclined surface corresponding to the inclined surface of the second compression ring at the inner end of the through hole It provides a resin-coated aluminum pipe connector for outdoor air conditioner, characterized in that it comprises a fastener formed.

전술한 구성을 갖는 본 명세서의 실시예에 따른 에어컨 실외기용 수지코팅 알루미늄 배관 연결구는 아래와 같은 이점을 갖는다.The resin coated aluminum pipe connector for an outdoor air conditioner according to an embodiment of the present disclosure having the above-described configuration has the following advantages.

서비스밸브와 냉매관을 이음연결하기 위해 체결구를 나사결합하여 체결시킬 경우, 냉매관의 확관부 및 이를 지지하는 압축링이 필요이상의 압력으로 체결되어 파손되는 것을 방지함에 따라 틈새를 통해 냉매 누출되는 것을 방지할 수 있다.When screwing the fasteners to connect the service valve and the refrigerant pipe, the leakage of the refrigerant through the gap is prevented because the expansion pipe of the refrigerant pipe and the compression ring supporting the same are prevented from being damaged by being tightened at a higher pressure than necessary. It can prevent.

또한, 냉매관을 이음연결하는 작업경험이 부족한 비전문가인 경우에도 냉매관의 확관부 및 이를 지지하는 압축링을 파손시키지않고 쉽게 이음연결할 수 있어 작업성을 향상시킬 수 있다.In addition, even if the non-experienced inexperienced in the joint operation of the refrigerant pipe can be easily connected without damaging the expansion pipe of the refrigerant pipe and the compression ring supporting it can improve the workability.

또한, 이종 재질로 이루어진 황동재의 압축링과 알루미늄재의 냉매관이 상호 접촉되는 것을 차단시킴에 따라 갈바닉(galvanic) 부식되는 것을 방지할 수 있어 사용수명을 연장시킬 수 있다.In addition, by blocking the contact between the compression ring of the brass material made of different materials and the refrigerant pipe of the aluminum material can be prevented galvanic corrosion can extend the service life.

도 1은 본 명세서의 바람직한 일 실시예에 따른 에어컨 실외기용 수지코팅 알루미늄 배관 연결구의 개략도,
도 2는 도 1에 도시된 배관 연결구의 단면도,
도 3은 본 명세서의 다른 실시예에 따른 에어컨 실외기용 수지코팅 알루미늄 배관 연결구의 개략도,
도 4는 도 3에 도시된 배관 연결구의 단면도이다.1 is a schematic diagram of a resin coated aluminum pipe connector for an outdoor unit of an air conditioner according to an exemplary embodiment of the present disclosure;
2 is a cross-sectional view of the pipe connector shown in FIG.
3 is a schematic view of a resin coated aluminum pipe connector for an air conditioner outdoor unit according to another embodiment of the present specification;
4 is a cross-sectional view of the piping connector shown in FIG.

이하, 첨부도면을 참조하여 본 명세서의 바람직한 실시예에 따른 에어컨 실외기용 수지코팅 알루미늄 배관 연결구를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings, a resin-coated aluminum pipe connector for an outdoor air conditioner according to a preferred embodiment of the present specification will be described in detail.

도 1 내지 도 2를 참조하면, 본 명세서의 일 실시예에 따른 에어컨 실외기용 수지코팅 알루미늄 배관 연결구는1 to 2, the resin coated aluminum pipe connector for an air conditioner outdoor unit according to an embodiment of the present disclosure

단부에 확관부(10)가 형성되는 알루미늄(Al)재의 냉매관(11)(외주연에 동재질의 코팅층이 형성됨);A coolant tube 11 made of aluminum (Al) having an expanded tube portion 10 formed at an end thereof (coating layer of the same material formed on the outer circumference);

단부에 제1경사면(12)이 형성되고, 외주연에 제1나사부(13)가 형성되는 연결포트(14)를 포함하는 실외기용 서비스밸브(15);A first inclined surface 12 at an end thereof and a service valve 15 for an outdoor unit including a connection port 14 having a first screw portion 13 formed at an outer circumference thereof;

제1경사면(12)에 대응되는 경사면(31)이 내주연 일단에 형성되고, 내주연 타단에 제1걸림턱(23b)이 형성되는 제1압축링(23);A first compression ring 23 having an inclined surface 31 corresponding to the first inclined surface 12 at one end of the inner circumference and having a first locking jaw 23b formed at the other end of the inner circumference;

확관부(10)에 대응되는 제2-1경사면(24a)이 내측에 형성되고, 제2-1경사면(24a) 상부로 수용측벽(24c)이 연장형성되는 제2압축링(24);A second compression ring 24 having a 2-1 inclined surface 24a corresponding to the expansion pipe 10 formed therein and having an accommodating side wall 24c extending above the 2-1 inclined surface 24a;

제1걸림턱(23b)에 대응되는 제2걸림턱(30a)이 외주연에 형성되고 수용측벽(24c)에 하단이 수용되며, 제1,2압축링(23,24)의 상호 밀착면 틈새를 씰링처리하며, 제1,2압축링(23,24)과 냉매관(11)의 확관부(10)가 상호 접촉되는 것을 차단하기 위한 씰링재(30)(일 예로서, 압축시 탄성변형되는 테프론재로 형성될 수 있다);The second catching jaw 30a corresponding to the first catching jaw 23b is formed at the outer circumference and the lower end is accommodated in the receiving side wall 24c, and the gap between the first and second compression rings 23 and 24 is in close contact with each other. Sealing material 30 for sealing the first, second compression rings (23, 24) and the expansion portion 10 of the refrigerant pipe (11) (for example, Teflon material elastically deformed during compression May be formed);

제1나사부(13)에 대응되는 제2나사부(19)가 내주연 입구측에 형성되고, 제1,2압축링(23,24)이 안착되는 안착부(20)가 제2나사부(19) 밑으로 형성되는 체결구(22);를 구비한다.The second screw portion 19 corresponding to the first screw portion 13 is formed at the inner circumferential inlet side, and the seating portion 20 on which the first and second compression rings 23 and 24 are seated is under the second screw portion 19. It is provided with a fastener 22 formed as.

전술한 구성을 갖는 본 명세서의 일 실시예에 따른 에어컨 실외기용 수지코팅 알루미늄 배관 연결구에 의하면,According to the resin coated aluminum pipe connector for an outdoor unit of an air conditioner according to an embodiment of the present disclosure having the above configuration,

도 1 및 도 2에서와 같이, 확관부(10)가 단부에 형성된 냉매관(11)을 제1,2압축링(23,24)이 안착부(20)에 안착된 체결구(22)를 이용하여 실외기용 서비스밸브(15)에 기밀상태로 이음연결할 경우, 이종 재질로 형성된 알루미늄재의 냉매관(11)의 확관부(10)와 황동재의 제1,2압축링(23,24)이 상호 접촉으로 인해 갈바닉(galvanic) 부식되는 것을 방지할 수 있다.As shown in FIGS. 1 and 2, a fastener 22 having first and second compression rings 23 and 24 mounted on a seating portion 20 is used as a refrigerant pipe 11 having an expansion pipe portion 10 formed at an end thereof. When the joint is connected to the service valve 15 for the outdoor unit in an airtight state, the expansion part 10 of the refrigerant pipe 11 made of dissimilar material and the first and second compression rings 23 and 24 made of brass are mutually contacted. This prevents galvanic corrosion.

이를 상세하게 설명하면, 확관부(10)가 단부에 형성된 냉매관(11)을 체결구(22)를 관통시켜 확관부(10)를 제2압축링(24)의 제2-1경사면(24a)에 밀착시키고,제2압축링(24)을 체결구(22)의 안착부(20)에 안착시킨다.In detail, the expansion pipe 10 passes through the fastener 22 through the refrigerant pipe 11 formed at the end thereof, and expands the expansion pipe 10 through the second inclined surface 24a of the second compression ring 24. The second compression ring 24 is seated on the seating portion 20 of the fastener 22.

서비스밸브(15)의 연결포트(14) 단부에 형성된 제1경사면(12)에 이와 대응되게 형성된 제1압축링(23)의 경사면(31)을 밀착시키고, 제1압축링(23)의 내주연에 형성된 제1걸림턱(23b)에 이와 대응되게 형성된 씰링재(30)의 제2걸림턱(30a)을 밀착시킨다.The inclined surface 31 of the first compression ring 23 corresponding to the first inclined surface 12 formed at the end of the connection port 14 of the service valve 15 is brought into close contact with each other. The second catching jaw 30a of the sealing material 30 formed to correspond to the first catching jaw 23b formed thereon is in close contact.

씰링재(30)가 결합된 제1압축링(23)을 체결구(22)의 안착부(20)에 안착시킬 경우, 씰링재(30)의 하단은 제2압축링(24)의 수용측벽(24c)에 수용된다.When the first compression ring 23 coupled with the sealing material 30 is seated on the seating portion 20 of the fastener 22, the lower end of the sealing material 30 is connected to the receiving side wall 24c of the second compression ring 24. Are accepted.

따라서, 서비스밸브(15)의 제1나사부(13)에 이와 대응되게 형성된 체결구(22)의 제2나사부(19)를 나사결합시켜 체결할 경우 테프론재로 형성된 씰링재(30)가 탄성변형된다.Therefore, when the second screw portion 19 of the fastener 22 formed correspondingly to the first screw portion 13 of the service valve 15 is screwed and fastened, the sealing material 30 formed of Teflon material is elastically deformed. .

전술한 바와 같이 서비스밸브(15)에 체결구(22)를 나사결합하여 체결시킴에 따라 서비스밸브(15)의 연결포트(14)에 냉매관(11)을 기밀상태로 이음연결할 수 있다.As described above, as the fastener 22 is screwed to the service valve 15, the refrigerant pipe 11 may be connected to the connection port 14 of the service valve 15 in a hermetic state.

즉, 서비스밸브(15)의 제1나사부(13)에 이와 대응되는 체결구(22)의 제2나사부(19)를 나사결합시켜 체결할 경우, 연결포트(14)의 제1경사면(12)에 제1압축링(23)의 경사면(31)이 밀착되어 틈새를 1차로 씰링처리하고, 냉매관(11)의 확관부(10)에 제2압축링(24)의 제2-1경사면(24a)이 밀착되어 틈새를 2차로 씰링처리하며, 연결포트(14)바닥면과 씰링재(30)의 상면이 밀착되어 틈새를 3차로 씰링처리할 수 있다.That is, when screwing the second screw portion 19 of the fastener 22 corresponding thereto to the first screw portion 13 of the service valve 15, the first inclined surface 12 of the connection port 14 The inclined surface 31 of the first compression ring 23 is in close contact with each other, and the gap is first sealed, and the second-first slope 24a of the second compression ring 24 is extended to the expansion pipe portion 10 of the refrigerant pipe 11. The close contact with the gap is sealed secondly, the bottom surface of the connection port 14 and the upper surface of the sealing material 30 is in close contact with the gap can be three times sealing treatment.

또한, 서비스밸브(15)의 제1나사부(13)에 체결구(22)의 제2나사부(19)를 나사결합시켜 체결할 경우, 냉매관(11) 외측면과 밀착되는 제2-1경사면(24a) 단부가 냉매관(11) 반경 방향으로 압축되어(도 2에 가상선으로 도시됨) 탄성변형됨에 의해 냉매관(11)의 외주연을 압착시키게 된다. 이로 인해 체결구(22)로부터 냉매관(11)이 이탈되는 것을 방지할 수 있게 된다.In addition, when the second screw portion 19 of the fastener 22 is screwed into the first screw portion 13 of the service valve 15, the second inclined surface closely contacted with the outer surface of the refrigerant pipe 11. An end portion 24a is compressed in the radial direction of the refrigerant pipe 11 (illustrated in phantom in Fig. 2) and elastically deformed to compress the outer circumference of the refrigerant pipe 11. This makes it possible to prevent the refrigerant pipe 11 from being separated from the fastener 22.

이와 동시에, 씰링재(30)에 의해 제1,2압축링(23,24)과 냉매관(11)의 확관부(10)가 상호 접촉되는 것을 차단시킴에 따라 황동재로 형성된 제1,2압축링(23,24)과 알루미늄재로 형성된 냉매관(11)의 확관부(10)가 상호 접촉될 경우 이종 재질의 접촉으로 인한 갈바닉 부식되는 것을 방지할 수 있게 된다.At the same time, the first and second compression rings 23 made of brass are blocked by blocking the contact between the first and second compression rings 23 and 24 and the expansion part 10 of the refrigerant pipe 11 by the sealing material 30. When the expansion tube 10 of the refrigerant pipe 11 formed of 24 and the aluminum material is in contact with each other, galvanic corrosion due to contact of different materials can be prevented.

한편, 서비스밸브(15)의 연결포트(14)에 체결구(22)를 결합시켜 체결할 경우, 체결구(22)의 안착부(20)에 안착된 황동재의 제1,2압축링(23,24)이 밀착되므로테프론재의 씰링재(30)에 압축력이 필요이상으로 가해져 파손(필요이상의 압축력이 가해져 터지는 것을 말함)되는 것을 방지할 수 있게 된다.On the other hand, when the fastener 22 is coupled to the connection port 14 of the service valve 15 to be fastened, the first and second compression rings 23 and 2 made of brass seated on the seating portion 20 of the fastener 22. Since 24) is in close contact, the compressive force is applied to the sealing member 30 of the Teflon material more than necessary, thereby preventing damage (that is, bursting due to applying more compressive force than necessary).

전술한 바와 같이 본 명세서의 일 실시예에 의한 에어컨용 냉매 배관 이음장치에서, 안착부(20)에 제1,2압축링(23,24)이 안착된 체결구(22)를 서비스밸브(15)의 연결포트(14)에 체결할 경우, 씰링재(30)가 서비스밸브(15)의 연결포트(14)와 냉매관(11)의 확관부(10) 사이에서 탄성변형됨에 따라 제1,2압축링(23,24)사이의 틈새를 씰링처리하고, 제1,2압축링(23,24)과 냉매관(11)의 확관부(10)가 상호 접촉되는 것을 차단하여 이종 재질의 접촉으로 인한 갈바닉 부식되는 것을 방지할 수 있게 된다.As described above, in the refrigerant pipe joint for an air conditioner according to the exemplary embodiment of the present specification, a fastener 22 in which the first and second compression rings 23 and 24 are seated on the seating portion 20 is provided with the service valve 15. And the first and second compression rings as the sealing member 30 is elastically deformed between the connecting port 14 of the service valve 15 and the expansion part 10 of the refrigerant pipe 11 when fastened to the connecting port 14 of the service valve 15. Galvanic corrosion due to contact of dissimilar materials by sealing the gap between (23, 24) and blocking contact between the first and second compression rings (23, 24) and the expansion part (10) of the refrigerant pipe (11) Can be prevented.

도 3 및 도 4에 도시된 바와 같이, 본 명세서의 다른 실시예에 따른 에어컨 실외기용 수지코팅 알루미늄 배관 연결구에 따르면,As shown in Figure 3 and 4, according to the resin-coated aluminum pipe connector for air conditioner outdoor unit according to another embodiment of the present specification,

에어컨용 냉매 가스가 이동되는 알루미늄재의 냉매관(11)(외주연에 동재질의 코팅층이 형성됨);A coolant tube 11 made of aluminum to which a coolant gas for air conditioner is moved (coating layer of the same material formed on the outer periphery);

중앙의 관통홀(14a) 외측으로 형성되는 제1걸림턱(14b)과, 제1걸림턱(14b) 외측단에 형성되는 경사면(14d)과, 경사면(14d) 외측단에 형성되는 제2걸림턱(14c)과, 외주연에 제1나사부(13)가 형성되는 연결포트(14)를 포함하는 실외기용 서비스밸브(15);The first catching jaw 14b formed outside the center through hole 14a, the inclined surface 14d formed at the outer end of the first catching jaw 14b, and the second catching formed at the outer end of the inclined surface 14d. A service valve 15 for an outdoor unit including a jaw 14c and a connection port 14 having a first screw portion 13 formed on an outer circumference thereof;

서비스밸브(15)의 경사면(14d)에 대응되는 경사면(a)이 외주연 일단에 형성되며, 압축시 탄성변형되어 냉매관(11)과 연결포트(14) 사이의 틈새를 씰링처리하기 위한 제1압축링(A)(일 예로서, 압축시 탄성변형 가능한 테프론재로 형성될 수 있다);An inclined surface a corresponding to the inclined surface 14d of the service valve 15 is formed at one end of the outer circumference thereof, and is elastically deformed during compression to seal the gap between the refrigerant pipe 11 and the connection port 14. A compression ring A (for example, may be formed of an elastically deformable Teflon material during compression);

제1압축링(A)이 안착되는 걸림턱(18a)이 내주연에 형성되고, 외주연에 압축시 탄성변형이 용이하되도록 요홈(18b)이 형성되며, 요홈(18b) 하단에 형성되고 압축시 냉매관(11) 외주연에 반경 방향으로 탄성변형되어 체결구(22)로부터 냉맹관(11) 이탈되는 것을 방지하기 위한 가압편(18c)이 형성되며, 서비스밸브(15)의 제2걸림턱(14c)에 상단이 안착되는 황동재의 제2압축링(18);A catching jaw 18a on which the first compression ring A is seated is formed at the inner circumference, and a recess 18b is formed at the outer circumference to facilitate elastic deformation, and is formed at the bottom of the recess 18b and is compressed. A pressure piece 18c is formed on the outer circumference of the coolant pipe 11 so as to be elastically deformed in a radial direction to prevent the coolant pipe 11 from being separated from the fastener 22, and a second catching jaw of the service valve 15 is formed. A second compression ring 18 of brass material having an upper end seated at 14c;

제1나사부(13)에 대응되는 제2나사부(19)가 내주연 입구측에 형성되고, 중앙에 냉매관(11)이 관통되게 형성되는 관통홀(22a)과, 관통홀(22a) 내측단에 제2압축링(18)의 가압편(18c)의 경사면에 대응되는 경사면(22b)이 형성되는 체결구(22);를 구비한다.The second screw portion 19 corresponding to the first screw portion 13 is formed at the inner circumferential inlet side, and has a through hole 22a through which the refrigerant pipe 11 penetrates in the center, and an inner end of the through hole 22a. And a fastener 22 having an inclined surface 22b corresponding to the inclined surface of the pressing piece 18c of the second compression ring 18.

전술한 구성을 갖는 본 명세서의 다른 실시예에 따른 에어컨 실외기용 수지코팅 알루미늄 배관 연결구에 의하면,According to the resin-coated aluminum pipe connector for outdoor air conditioner according to another embodiment of the present specification having the above configuration,

도 3 및 도 4에서와 같이, 전술한 제1,2압축링(A,18)이 수용된 에어컨용 서비스밸브(15)에 나사결합되는 체결구(22)를 이용하여 냉매관(11)을 서비스밸브(15)에 기밀상태로 이음연결할 수 있다.As shown in FIGS. 3 and 4, the refrigerant pipe 11 is service valve by using the fastener 22 screwed to the air conditioner service valve 15 in which the first and second compression rings A and 18 are accommodated. The joint can be connected to (15) in a hermetic state.

이를 상세하게 설명하면, 제1압축링(A)을 제2압축링(18)의 내주연에 형성된 걸림턱(18a)에 안착시켜 결합한다. 이때 제1압축링(A)의 외주연 일단에 형성된 경사면(a)이 서비스밸브(15)의 경사면(14d)에 밀착상태로 안착되고, 제2압축링(18)의 상단이 서비스밸브(15)의 제2걸림턱(14c)에 안착된다.In detail, the first compression ring A is seated on the engaging jaw 18a formed at the inner circumference of the second compression ring 18 to be coupled thereto. At this time, the inclined surface (a) formed at one end of the outer circumference of the first compression ring (A) is seated in close contact with the inclined surface (14d) of the service valve 15, the upper end of the second compression ring (18) of the service valve (15) It is seated on the second catching jaw 14c.

체결구(22)의 관통홀(22a)을 관통하는 냉매관(11) 단부를 제2압축링(18), 제1압축링(A)을 차례로 관통시켜 서비스밸브(15)의 제1걸림턱(14b)에 안착시킨 후, 서비스밸브(15)의 제1나사부(13)에 이와 대응되는 체결구(22)의 제2나사부(19)를 나사결합시켜 체결한다.The first catching jaw 14b of the service valve 15 is formed by sequentially passing through the second compression ring 18 and the first compression ring A through the end of the refrigerant pipe 11 passing through the through hole 22a of the fastener 22. ), And then screw the second screw portion 19 of the fastener 22 corresponding thereto to the first screw portion 13 of the service valve 15.

전술한 냉매관(11) 단부에 결합되고, 내부가 비어 있는 실링재(25)(압축시 탄성변형되는 테프론재로 형성됨);를 더 구비함에 따라, 서비스밸브(15)의 연결포트(14)에 체결구(22)를 체결시킬 경우 냉매관(11) 단부와 제1걸림턱(14b) 사이에서 탄성변형된 실링재(25)에 의해 냉매관(11) 단부와 이와 밀착되는 연결포트(14)의 제1걸림턱(14b) 사이의 틈새를 통해 냉매 누출되는 것을 방지할 수 있게 된다.It is coupled to the end of the refrigerant pipe 11, and the sealing material 25 (formed from the Teflon material that is elastically deformed when compressed); and further provided, to the connection port 14 of the service valve 15 When the fastener 22 is fastened, the end of the refrigerant pipe 11 is closely contacted with the end of the refrigerant pipe 11 by the sealing member 25 elastically deformed between the end of the refrigerant pipe 11 and the first catching jaw 14b. It is possible to prevent the refrigerant from leaking through the gap between the first catching jaws 14b.

전술한 바와 같이 서비스밸브(15)의 연결포트(14)에 체결구(22)를 체결할 경우, 제2압축링(18)의 압축으로 인해 탄성변형되는 제1압축링(A)(압축시 탄성변형되는 테프론재로 형성됨)의 경사면(a)이 서비스밸브(15)의 경사면(14d)에 밀착된 상태에서 압축된다.As described above, when the fastener 22 is fastened to the connection port 14 of the service valve 15, the first compression ring A is elastically deformed due to the compression of the second compression ring 18 (elastic deformation during compression). Inclined surface (a) of the Teflon material, which is in contact with the inclined surface 14d of the service valve 15, is compressed.

이로 인해, 테프론재로 형성된 제1압축링(A)의 경사면(a)이 탄성변형되어 경사면(a) 단부가 냉매관(11) 외주연에 코팅된 코팅층을 파고 들어가 압축되므로, 냉매관(11) 외주연과 서비스밸브(15)의 경사면(14d)사이의 틈새를 제1압축링(A)에 의해 씰링처리하여 기밀상태를 유지할 수 있다.As a result, the inclined surface a of the first compression ring A formed of the Teflon material is elastically deformed and the inclined surface a end thereof is compressed into the coating layer coated on the outer circumferential edge of the coolant tube 11, thereby compressing the coolant tube 11. The gap between the outer periphery and the inclined surface 14d of the service valve 15 can be sealed by the first compression ring A to maintain the airtight state.

이와 동시에, 서비스밸브(15)의 연결포트(14)에 체결구(22)를 체결할 경우, 체결구(22)의 관통홀(22a) 내측단에 형성된 경사면(22b)에 의해 이와 밀착되는 제2압축링(18)에 형성된 가압편(18c)을 반경방향으로 압축하게 된다.At the same time, when the fastener 22 is fastened to the connection port 14 of the service valve 15, the fastener 22 is in close contact with the inclined surface 22b formed at the inner end of the through hole 22a of the fastener 22. The pressing piece 18c formed in the two compression rings 18 is compressed in the radial direction.

이로 인해, 가압편(18c)의 경사면 단부가 탄성변형되어 냉매관(11) 외주연에 반경 방향으로 압착됨에 따라(도 4에 가상선으로 도시됨) 체결구(22)로부터 냉매관(11)이 이탈되는 것을 방지할 수 있다.For this reason, as the inclined surface end part of the press piece 18c is elastically deformed and crimped | bonded radially to the outer periphery of the refrigerant pipe 11 (shown by the phantom line in FIG. 4), from the fastener 22 to the refrigerant pipe 11 This can prevent the deviation.

이때, 제2압축링(18)의 걸림턱(18a)과 가압편(18c) 사이에 형성된 원통부(도면부호 미 표기됨) 외주연에 요홈(18b)이 형성됨에 따라, 서버스밸브(15)의 연결포트(14)에 체결구(22)를 체결시 제2압축링(18)의 가압편(18c)에 반경 방향으로 가해지는 압축력을 증대시킬 수 있다.At this time, the groove (18b) is formed on the outer periphery of the cylindrical portion (not shown) formed between the locking step (18a) and the pressing piece (18c) of the second compression ring 18, the server valve 15 of the When the fastener 22 is fastened to the connection port 14, the compressive force applied in the radial direction to the pressing piece 18c of the second compression ring 18 may be increased.

따라서, 냉매관(11) 외주연에 가해지는 제2압축링(18)의 가압편(18c) 탄성변형량을 증대시킬 수 있다.Therefore, the amount of elastic deformation of the pressing piece 18c of the second compression ring 18 applied to the outer circumference of the refrigerant pipe 11 can be increased.

또한, 전술한 요홈(18b) 및 가압편(18c)에 축방향으로 1개소 이상 절개형성되는 슬롯(18d);을 더 구비함에 따라, 서버스밸브(15)의 연결포트(14)에 대해 체결구(22)를 체결할 경우 슬롯(18d)에 의해 제2압축링(18)의 가압편(18c)에 발생되는 탄성변형량을 증대시킬 수 있다.Further, the groove 18b and the slot 18d which are formed at least one cut in the axial direction in the above-described groove 18b and the pressing piece 18c are further provided, so that the fastener for the connection port 14 of the server valve 15 is provided. When the 22 is fastened, the amount of elastic deformation generated in the pressing piece 18c of the second compression ring 18 by the slot 18d can be increased.

여기에서, 전술한 본 명세서에서는 바람직한 실시예를 참조하여 설명하였지만, 해당 기술분야에서 숙련된 당업자는 하기의 청구범위에 기재된 본 명세서의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 명세서를 다양하게 수정 및 변경할 수 있음을 이해할 수 있을 것이다.Herein, while the foregoing specification has been described with reference to the preferred embodiments, those skilled in the art may variously modify and modify the present disclosure without departing from the spirit and scope of the present disclosure as set forth in the claims below. It will be appreciated that this can be changed.

10; 확관부
11; 냉매관
12; 제1경사면
13; 제1나사부
14; 연결포트
15; 서비스밸브
18; 제2압축링
22; 체결구
23; 제1압축링
24; 제2압축링
25; 실링재10; Expansion
11; Refrigerant tube
12; First slope
13; 1st screw part
14; Connection port
15; Service valve
18; 2nd compression ring
22; Fastener
23; 1st compression ring
24; 2nd compression ring
25; Sealing material

Claims (5)

단부에 확관부가 형성되는 알루미늄재의 냉매관;
단부에 제1경사면이 형성되고, 외주연에 제1나사부가 형성되는 연결포트를 포함하는 서비스밸브;
상기 제1경사면에 대응되는 경사면이 내주연 일단에 형성되고, 내주연 타단에 제1걸림턱이 형성되는 제1압축링;
상기 확관부에 대응되는 제2-1경사면이 내측에 형성되고, 상기 제2-1경사면 상부로 수용측벽이 연장형성되는 제2압축링;
상기 제1걸림턱에 대응되는 제2걸림턱이 외주연에 형성되고 상기 수용측벽에 하단이 수용되며, 상기 제1,2압축링의 상호 밀착면 틈새를 씰링처리하며, 상기 제1,2압축링과 냉매관의 확관부가 상호 접촉되는 것을 차단하기 위한 씰링재;
상기 제1나사부에 대응되는 제2나사부가 내주연 입구측에 형성되고, 상기 제1,2압축링이 안착되는 안착부가 상기 제2나사부 밑으로 형성되는 체결구;를 구비하는 것을 특징으로 하는 에어컨 실외기용 수지코팅 알루미늄 배관 연결구.A refrigerant pipe made of aluminum having an expansion pipe portion formed at an end thereof;
A service valve including a connection port having a first inclined surface at an end thereof and having a first screw portion formed at an outer circumference thereof;
A first compression ring having an inclined surface corresponding to the first inclined surface at one end of the inner circumference and a first catching jaw formed at the other end of the inner circumference;
A second compression ring having a second inclined surface corresponding to the expansion pipe portion formed therein and an accommodation side wall extending above the second inclined surface;
A second catching jaw corresponding to the first catching jaw is formed on the outer circumference and has a lower end accommodated in the receiving side wall, and seals a gap between the close contact surfaces of the first and second compression rings, and the first and second compression rings. Sealing material for blocking the expansion of the refrigerant pipe contact each other;
And a fastener in which a second screw portion corresponding to the first screw portion is formed at an inner circumferential inlet side, and a seating portion in which the first and second compression rings are seated is formed under the second screw portion. Resin-coated aluminum pipe fittings. 알루미늄재의 냉매관;
중앙의 관통홀 외측으로 형성되는 제1걸림턱과, 상기 제1걸림턱 외측단에 형성되는 경사면과, 상기 경사면 외측단에 형성되는 제2걸림턱과, 외주연에 제1나사부가 형성되는 연결포트를 포함하는 서비스밸브;
상기 서비스밸브의 경사면에 대응되는 경사면이 외주연 일단에 형성되며, 압축시 상기 냉매관과 연결포트 사이의 틈새를 씰링처리하기 위한 제1압축링;
상기 제1압축링이 안착되도록 내주연에 형성되는 걸림턱과, 상기 걸림턱 밑으로 형성되고 압축시 상기 냉매관 반경 방향으로 탄성변형되어 냉매관이 이탈되는 것을 방지하기 위한 가압편을 포함하고, 상기 서비스밸브의 제2걸림턱에 상단이 안착되는 제2압축링;
상기 제1나사부에 대응되는 제2나사부가 내주연 입구측에 형성되고, 중앙에상기 냉매관이 관통되게 형성되는 관통홀과, 상기 관통홀 내측단에 상기 제2압축링의 경사면에 대응되는 경사면이 형성되는 체결구;를 구비하는 것을 특징으로 하는 에어컨 실외기용 수지코팅 알루미늄 배관 연결구.A refrigerant tube made of aluminum;
A first threaded jaw formed outside the center through hole, an inclined surface formed at the outer end of the first caught jaw, a second caught jaw formed at the outer end of the inclined surface, and a first screw portion formed at an outer periphery A service valve comprising a port;
A first compression ring having an inclined surface corresponding to the inclined surface of the service valve at one end of the outer circumference thereof, for sealing the gap between the refrigerant pipe and the connection port during compression;
A latching jaw formed at an inner circumference such that the first compression ring is seated, and a pressing piece formed under the locking jaw and elastically deformed in the radial direction of the refrigerant pipe during compression to prevent the refrigerant pipe from being detached. A second compression ring having an upper end seated on a second catching jaw of the service valve;
The second screw portion corresponding to the first screw portion is formed at the inner circumferential inlet side, the through hole is formed through the refrigerant pipe in the center and the inclined surface corresponding to the inclined surface of the second compression ring at the inner end of the through hole Resin-coated aluminum pipe connector for air conditioner outdoor unit characterized in that it comprises a fastener formed. 제2항에 있어서,
상기 서버스밸브의 연결포트에 대해 상기 체결구를 체결할 경우, 압축력에 의해 상기 제2압축링의 가압편에 가해지는 탄성변형량을 증대시킬 수 있도록 상기 걸림턱과 가압편 사이에 형성되는 요홈;을 더 구비하는 것을 특징으로 하는 에어컨 실외기용 수지코팅 알루미늄 배관 연결구.The method of claim 2,
When fastening the fastener to the connection port of the server valve, the groove formed between the locking jaw and the pressing piece to increase the amount of elastic deformation applied to the pressing piece of the second compression ring by the compression force; Resin-coated aluminum piping connector for air conditioner outdoor unit characterized in that it comprises. 제3항에 있어서,
상기 서버스밸브의 연결포트에 대해 상기 체결구를 체결할 경우, 상기 제2압축링의 가압편에 발생되는 탄성변형량을 증대시킬 수 있도록 상기 요홈 및 가압편에 1개소 이상으로 절개형성되는 슬롯;을 더 구비하는 것을 특징으로 하는 에어컨 실외기용 수지코팅 알루미늄 배관 연결구.The method of claim 3,
When the fastener is fastened to the connection port of the server valve, the slot is formed in the groove and the pressing piece in one or more cuts so as to increase the amount of elastic deformation generated in the pressing piece of the second compression ring; Resin-coated aluminum piping connector for air conditioner outdoor unit characterized in that it comprises. 제2항에 있어서,
상기 냉매관 단부에 결합되고, 상기 냉매관 단부와 이와 밀착되는 상기 연결포트의 제1걸림턱 사이의 틈새를 통해 냉매 누출되는 것을 방지하기 위한 실링재;를 더 구비하는 것을 특징으로 하는 에어컨 실외기용 수지코팅 알루미늄 배관 연결구.The method of claim 2,
Resin coupled to the refrigerant pipe end, the sealing member for preventing the leakage of the refrigerant through the gap between the refrigerant pipe end and the first catching jaw of the connection port in close contact therewith; resin for air conditioners outdoor unit further comprising Coated aluminum tubing connections.
KR1020190034934A 2018-05-09 2019-03-27 refrigerant pipe connector for air conditioner of outdoor fan KR102158368B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP19800685.0A EP3770477A4 (en) 2018-05-09 2019-04-11 Resin-coated aluminum pipe connector for air conditioner outdoor unit
US17/050,066 US11054155B2 (en) 2018-05-09 2019-04-11 Resin-coated aluminum pipe connector for air conditioner outdoor unit
JP2020560442A JP6896314B2 (en) 2018-05-09 2019-04-11 Resin-coated aluminum piping connector for air conditioner outdoor unit
PCT/KR2019/004325 WO2019216558A1 (en) 2018-05-09 2019-04-11 Resin-coated aluminum pipe connector for air conditioner outdoor unit
CN201980028549.2A CN112041605B (en) 2018-05-09 2019-04-11 Resin coating aluminum pipe connecting piece for air conditioner outdoor unit

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KR20230115831A (en) 2022-01-27 2023-08-03 주식회사 에프티넷 Link device of valve and pipe with positon indicator and safety grab part
KR20230165083A (en) 2022-05-26 2023-12-05 주식회사 에프티넷 Link device of pipe with improved characteristic for sealing and fixing of pipe

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KR101479288B1 (en) * 2014-08-21 2015-01-06 홍만기 Connecting structure of refrigerant pipe
KR101561257B1 (en) * 2014-07-21 2015-10-16 오형동 Connecting structure of refrigerant pipe

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US20120175874A1 (en) * 2010-08-31 2012-07-12 Philmac Pty Ltd Stepped down grip ring for use in pipe couplings and pipe coupling incorporating same
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