KR20210123468A - a connecting device of refrigerant of air conditioner - Google Patents

a connecting device of refrigerant of air conditioner Download PDF

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Publication number
KR20210123468A
KR20210123468A KR1020200040610A KR20200040610A KR20210123468A KR 20210123468 A KR20210123468 A KR 20210123468A KR 1020200040610 A KR1020200040610 A KR 1020200040610A KR 20200040610 A KR20200040610 A KR 20200040610A KR 20210123468 A KR20210123468 A KR 20210123468A
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South Korea
Prior art keywords
inclined surface
compression ring
refrigerant pipe
air conditioner
pipe
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KR1020200040610A
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Korean (ko)
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김환영
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김환영
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Priority to KR1020200040610A priority Critical patent/KR20210123468A/en
Publication of KR20210123468A publication Critical patent/KR20210123468A/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
    • F16L33/24—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
    • 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
    • F16L19/043—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 additional sealing means
    • 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
    • F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means
    • 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
    • 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

Abstract

Disclosed is a refrigerant pipe connection device for an air conditioner, capable of connecting a refrigerant pipe for an outdoor unit in a one-touch manner. In accordance with an embodiment of the present specifications, a refrigerant pipe connection device for an air conditioner comprises: a refrigerant pipe applied to a connection device for connecting the refrigerant pipe to the outdoor unit of an air conditioner, having an extended pipe portion formed at an end thereof, and formed of aluminum; a service valve having a connection port with a first inclined surface formed at an end thereof and a threaded portion formed on the outer circumference thereof; a first compression ring having a through hole formed in the center thereof, having a second inclined surface corresponding to the first inclined surface and formed at an upper end of a large-diameter portion thereof, and having a small-diameter portion formed at a lower end thereof to extend; a bushing having a through hole formed in the center thereof, coupled to the outer circumference of the small-diameter portion, and having a third inclined surface formed at a lower end thereof to contact the upper surface of the extended pipe portion; a second compression ring having a through hole formed in the center thereof, having an upper inclined surface formed at an upper end thereof to contact the bottom surface of the extended pipe portion, and having a lower inclined surface formed at a lower end of the circumference thereof; and a fastener having a screw hole formed in an entrance side of the inner circumference thereof to correspond to the threaded portion, and having a fourth inclined surface formed at a lower end thereof to correspond to the lower inclined surface. Therefore, when the service valve is fastened to the fastener in which the second compression ring, the refrigerant pipe, the bushing, and the first compression ring are sequentially accommodated, the refrigerant pipe connection device can compress the bushing and the second compression ring so that the bushing and the second compression ring can be sealed.

Description

에어컨용 냉매 배관 연결장치{a connecting device of refrigerant of air conditioner}Refrigerant pipe connecting device for air conditioner {a connecting device of refrigerant of air conditioner}

본 명세서는 에어컨용 냉매 배관 연결장치에 관한 것으로, 보다 구체적으로 설명하면, 실외기용 냉매 배관을 원터치 방식으로 이음연결하기 위한 에어컨용 냉매 배관 연결장치에 관한 것이다.The present specification relates to a refrigerant pipe connecting device for an air conditioner, and more particularly, to a refrigerant pipe connecting device for an air conditioner for jointly connecting a refrigerant pipe for an outdoor unit in a one-touch method.

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 material described in this section is not prior art to the claims of this application, and inclusion in this section is not an admission that it is prior art.

일반적으로, 에어컨의 냉매 배관, 가스 배관 등 각종 배관을 소정의 기계적 장치에 연결하기 위해 사용되는 배관의 연결구조는 기본적으로 내부의 유체 누수 또는 누설되는 것을 방지하여야 하며, 진동이나 외부의 충격에 의해 이완되지 않아야 하는 등의 조건을 충족시켜야 된다.In general, a connection structure of a pipe used to connect various pipes such as a refrigerant pipe of an air conditioner and a gas pipe to a predetermined mechanical device should basically prevent leakage or leakage of internal fluid, and Conditions such as non-relaxation must be satisfied.

일 예로서, 배관의 연결구조는 배관의 단부를 나팔관처럼 확관시키되, 확관부를 중간에 끼운 상태에서 너트와 볼트를 상호결합하여 조임에 따라 확관부가 볼트의 선단부에 밀착됨으로써 기밀을 유지할 수 있다.As an example, the connection structure of the pipe expands the end of the pipe like a fallopian tube, and in a state where the expanded pipe part is inserted in the middle, the nut and the bolt are mutually coupled and tightened so that the expanded pipe part is in close contact with the tip of the bolt, thereby maintaining airtightness. .

도면에는 미 도시 되었으나, 배관(에어컨의 냉매 배관)의 확관부와 볼트 사이에 합성수지재 등으로 성형되는 슬리브를 게재시켜 이음연결하게 되는 데, 에어컨을 설치하는 작업현장에서 작업자가 볼트와 너트를 나사결합하여 체결시 필요이상으로 힘을 가하여 체결하게 된다.Although not shown in the drawing, a sleeve molded from synthetic resin material is placed between the bolt and the expanded part of the pipe (refrigerant pipe of the air conditioner) to connect the joint. When combined and fastening, more force is applied than necessary to fasten.

이로 인해, 볼트 선단부와 접촉되는 슬리브가 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.For this reason, when the sleeve in contact with the tip of the bolt is subjected to an external force and a shape deformation (crack or dent) occurs, a gap is generated due to the shape deformation, and there is a problem that the refrigerant may leak through the gap.

대한민국 특허출원 제10-2015-0094921호에 배관의 연결구조가 게시되어 있다.The connection structure of the pipe is posted in Korean Patent Application No. 10-2015-0094921.

본 명세서의 실시예는, 에어컨을 설치하는 작업현장에서 경험이 부족한 비전문가인 작업자인 경우에도 냉매관의 확관부 및 이를 압축지지하는 부쉬를 파손시키지않은 상태에서 이음연결할 수 있도록 한, 에어컨용 냉매 배관 연결장치와 관련된다.The embodiment of the present specification is a refrigerant pipe for an air conditioner, so that even a non-professional worker with insufficient experience at the work site for installing the air conditioner can connect the expansion pipe of the refrigerant pipe and the bush that compresses it without damaging the bushing. related to the connector.

상기 및 기타 본 명세서의 목적을 달성하기 위하여 본 명세서의 일 실시예에 따르면,According to an embodiment of the present specification to achieve the above and other purposes of the present specification,

에어컨의 실외기에 냉매관을 이음연결하기 위한 연결장치에 적용되고,It is applied to the connecting device for jointly connecting the refrigerant pipe to the outdoor unit of the air conditioner,

단부에 확관부가 형성되고, 알루미늄재의 냉매관;An expansion pipe portion is formed at the end, the coolant pipe made of an aluminum material;

단부에 제1경사면이 형성되고 외주연에 나사부가 형성되는 연결포트를 포함하는 서비스밸브;a service valve including a connection port having a first inclined surface formed at an end portion and a threaded portion formed on an outer periphery;

중앙에 관통공이 형성되고 상기 제1경사면에 대응되는 제2경사면이 대경부의 상단에 형성되며, 하단에 소경부가 연장형성되는 제1압축링;a first compression ring in which a through hole is formed in the center, a second inclined surface corresponding to the first inclined surface is formed at the upper end of the large-diameter portion, and the small-diameter portion is extended at the lower end;

중앙에 관통공이 형성되고 상기 소경부 외주연에 결합되며, 상기 확관부 상면과 밀착되는 제3경사면이 하단에 형성되는 부쉬;a bush having a through hole formed in the center, coupled to the outer periphery of the small-diameter portion, and having a third inclined surface in close contact with the upper surface of the expansion tube portion formed at the lower end;

중앙에 관통공이 형성되고 상기 확관부 바닥면에 밀착되는 상부 경사면이 상단에 형성되며, 외주연 하단에 하부 경사면이 형성되는 제2압축링;a second compression ring having a through hole formed in the center, an upper inclined surface in close contact with the bottom surface of the pipe expansion, formed at the upper end, and a lower inclined surface formed at the lower end of the outer periphery;

상기 나사부와 대응되는 나사공이 내주연 입구측에 형성되고, 상기 하부 경사면에 대응되는 제4경사면이 하단에 형성되는 체결구;를 구비함에 따라,A screw hole corresponding to the screw portion is formed on the inner periphery inlet side, and a fastener having a fourth inclined surface corresponding to the lower inclined surface formed at the lower end;

상기 제2압축링, 냉매관, 부쉬 및 제1압축링이 차례로 수용되는 상기 체결구에 상기 서비스밸브를 체결할 경우, 상기 확관부의 상면 및 바닥면에 밀착되는 상기 부쉬 및 제2압축링을 압축시켜 실링처리할 수 있도록 한 것을 특징으로 하는 에어컨용 냉매 배관 연결장치를 제공한다.When the service valve is fastened to the fastener in which the second compression ring, the refrigerant pipe, the bush, and the first compression ring are accommodated in sequence, the bush and the second compression ring that are in close contact with the top and bottom surfaces of the expanded pipe part are compressed and sealed. It provides a refrigerant pipe connection device for an air conditioner, characterized in that it can be processed.

전술한 구성을 갖는 본 명세서의 실시예에 따른 에어컨용 냉매 배관 연결장치는 아래와 같은 이점을 갖는다.The refrigerant pipe connection device for an air conditioner according to an embodiment of the present specification having the above-described configuration has the following advantages.

작업현장에서 비전문가인 작업자인 경우에도 냉매관의 확관부 및 이와 밀착되는 테프론재의 부쉬를 필요이상으로 외력을 가하지않은 상태에서 압축지지하여 기밀시킴에 따라, 부위를 파손시키지않은 상태에서 이음연결하게 되므로 냉매 누출되는 것을 방지할 수 있어 신뢰성 및 작업성을 향상시킬 수 있게 된다.Even if you are a non-professional worker at the job site, as the expansion of the refrigerant pipe and the Teflon bush in close contact with it are compressed and supported in a state where external force is not applied more than necessary, the joint is connected without damaging the part. It is possible to prevent refrigerant leakage, thereby improving reliability and workability.

도 1은 본 명세서의 바람직한 실시예에 따른 에어컨용 냉매 배관 연결장치의 결합사시도,
도 2는 도 1에 도시된 연결장치의 분리사시도,
도 3은 도 1에 도시된 연결장치의 결합단면도이다.1 is a combined perspective view of a refrigerant pipe connection device for an air conditioner according to a preferred embodiment of the present specification;
Figure 2 is an exploded perspective view of the connecting device shown in Figure 1;
3 is a cross-sectional view of the coupling device shown in FIG.

이하, 첨부도면을 참조하여 본 명세서의 바람직한 실시예에 따른 에어컨용 냉매 배관 연결장치를 상세히 설명하기로 한다.Hereinafter, a refrigerant pipe connection device for an air conditioner according to a preferred embodiment of the present specification will be described in detail with reference to the accompanying drawings.

도 1 내지 도 3을 참조하면, 본 명세서의 일 실시예에 따른 에어컨용 냉매 배관 연결장치는1 to 3, the refrigerant pipe connection device for air conditioner according to an embodiment of the present specification

에어컨의 실외기에 냉매관을 이음연결하기 위한 연결장치에 적용되고,It is applied to the connecting device for jointly connecting the refrigerant pipe to the outdoor unit of the air conditioner,

단부에 확관부(10)가 형성되고, 알루미늄(Al)재의 냉매관(11)(외주연에 동재질의 코팅층이 형성될 수 있다);The tube expansion portion 10 is formed at the end, the coolant tube 11 made of aluminum (Al) (a coating layer of a copper material may be formed on the outer periphery);

단부에 제1경사면(12)이 형성되고 외주연에 나사부(13)가 형성되는 연결포트(14)를 포함하는 서비스밸브(15);A service valve 15 including a connection port 14 having a first inclined surface 12 formed at an end portion and a threaded portion 13 formed on an outer periphery thereof;

중앙에 관통공(도면부호 미 표기)이 형성되고 제1경사면(12)에 대응되는 제2경사면(16)이 대경(大徑)부(17)의 상단에 형성되며, 하단에 보스형태의 소경부(18)가 연장형성되는 제1압축링(19);A through hole (not shown) is formed in the center, and a second inclined surface 16 corresponding to the first inclined surface 12 is formed at the upper end of the large-diameter portion 17, and a small boss-shaped surface is formed at the lower end. A first compression ring 19 to which the neck 18 is extended;

중앙에 관통공(도면부호 미 표기)이 형성되고 소경부(18) 외주연에 결합되며, 확관부(10) 상면과 밀착되는 제3경사면(20)이 하단에 형성되는 부쉬(21)(일 예로서, 압축시 탄성변형될 수 있는 테프론재로 형성될 수 있다);A bush 21 (one) with a through hole (not shown) formed in the center, coupled to the outer periphery of the small diameter portion 18, and a third inclined surface 20 that is in close contact with the upper surface of the expanded pipe portion 10 For example, it may be formed of a Teflon material that can be elastically deformed when compressed);

중앙에 관통공(도면부호 미 표기)이 형성되고 확관부(10) 바닥면에 밀착되는 상부 경사면(22)이 상단에 형성되며, 외주연 하단에 하부 경사면(23)이 형성되는 제2압축링(24);A second compression ring ( 24);

나사부(13)와 대응되는 나사공(25)이 내주연 입구측에 형성되고, 하부 경사면(23)에 대응되는 제4경사면(26)이 하단에 형성되는 너트형태의 체결구(27);를 구비함에 따라,A screw hole 25 corresponding to the screw portion 13 is formed on the inner periphery inlet side, and a fourth inclined surface 26 corresponding to the lower inclined surface 23 is formed at the bottom of a nut-type fastener 27; As available,

체결구(27)에 제2압축링(24), 냉매관(11), 부쉬(21) 및 제1압축링(19)을 차례로 수용시킨 후, 체결구(27)에 나사결합되는 서비스밸브(15)를 체결할 경우, 냉매관(11)의 확관부(10)의 상면 및 바닥면에 밀착되는 부쉬(21) 및 제2압축링(24)을 압축시켜 실링처리할 수 있도록 한 것을 특징으로 한다.After receiving the second compression ring 24, the refrigerant pipe 11, the bush 21, and the first compression ring 19 in the fastener 27 in sequence, the service valve 15 is screwed to the fastener 27. It is characterized in that the bush 21 and the second compression ring 24 that are in close contact with the top and bottom surfaces of the expansion tube 10 of the refrigerant pipe 11 are compressed so that sealing can be performed.

더욱 바람직한 실시예에 의하면, 전술한 체결구(27)의 내주연에 형성되고 제1압축링(19)의 대경부(17) 바닥면이 안착되는 걸림턱(28);을 구비하되, 체결구(27)에 나사결합되는 서비스밸브(15)를 체결할 경우 제1압축링(19)에 필요이상으로 가해지는 외력(체결력)에 의해 테프론재의 부쉬(21)가 크랙 등으로 인해 파손되는 것을 방지할 수 있도록 한 것을 특징으로 한다.According to a more preferred embodiment, a locking jaw 28 formed on the inner periphery of the aforementioned fastener 27 and on which the bottom surface of the large-diameter portion 17 of the first compression ring 19 is seated; but, the fastener ( 27), when the service valve 15 screwed to the screw is fastened to the first compression ring 19, it is possible to prevent the bush 21 of Teflon material from being damaged due to cracks, etc. It is characterized in that

이하에서, 본 명세서의 일 실시예에 따른 에어컨용 냉매 배관 연결장치의 사용예를 첨부도면에 따라 설명한다.Hereinafter, an example of use of the refrigerant pipe connection device for an air conditioner according to an embodiment of the present specification will be described with reference to the accompanying drawings.

도 2 및 도 3에서와 같이, 전술한 너트형태의 체결구(27) 내부에 형성된 제4경사면(26)에 이와 대응되는 제2압축링(24)의 하부 경사면(23)을 밀착시켜 안착하고, 제2압축링(24)의 상부 경사면(22)에 냉매관(11)의 확관부(10) 바닥면을 밀착한다.As shown in FIGS. 2 and 3, the lower inclined surface 23 of the second compression ring 24 corresponding thereto is placed in close contact with the fourth inclined surface 26 formed inside the nut-shaped fastener 27 described above. The bottom surface of the expansion pipe 10 of the refrigerant pipe 11 is in close contact with the upper inclined surface 22 of the second compression ring 24 .

전술한 소경부(18)에 부쉬(21)가 결합된 제1압축링(19)을 확관부(10)에 안착시킬 경우, 제1압축링(19)의 대경부(17) 바닥면이 체결구(27)의 내측면에 형성된 걸림턱(28)에 안착되고, 부쉬(21)의 바닥면에 형성된 제3경사면(20)이 확관부(10) 상면에 밀착하게 된다.When the first compression ring 19 in which the bush 21 is coupled to the small diameter portion 18 described above is seated on the expansion tube 10, the bottom surface of the large diameter portion 17 of the first compression ring 19 is a fastener ( 27) is seated on the locking sill 28 formed on the inner surface, and the third inclined surface 20 formed on the bottom surface of the bush 21 is in close contact with the upper surface of the expansion tube 10 .

전술한 서비스밸브(15)의 연결포트(14) 외주연에 형성된 나사부(13)를 이와 대응되게 체결구(17)의 내측면에 형성된 나사공(25)에 나사결합시켜 체결한다.The screw portion 13 formed on the outer periphery of the connection port 14 of the above-described service valve 15 is screwed into the screw hole 25 formed on the inner surface of the fastener 17 to correspond to this and fastened.

이때, 연결포트(14) 단부에 형성된 제1경사면(12)이 제1압축링(19)의 상단에 형성된 제2경사면(16)에 밀착하게 된다.At this time, the first inclined surface 12 formed at the end of the connection port 14 is in close contact with the second inclined surface 16 formed at the upper end of the first compression ring 19 .

전술한 바와 같이 체결구(27)에 제2압축링(24), 냉매관(11)의 확관부(10), 소경부(18)에 부쉬(21)가 결합된 제1압축링(19)을 차례대로 수용한 후, 체결구(27)의 나사공(25)에 이와 대응되는 서비스밸브(15)의 연결포트(14)에 형성된 나사부(13)를 나사결합시켜 체결할 경우, 제1압축링(19) 및 제2압축링(24)의 압축됨에 의해 제1,2압축링(19,24) 사이에 위치한 냉매관(11)의 확관부(10)와 이와 밀착된 제1압축링(19)의 소경부(18)에 결합된 부쉬(21)를 압축하게 된다.As described above, the second compression ring 24 to the fastener 27, the expansion pipe 10 of the refrigerant pipe 11, and the first compression ring 19 in which the bush 21 is coupled to the small diameter part 18 are sequentially installed. When the first compression ring 19 ) and the small diameter part of the first compression ring 19 in close contact with the expansion pipe 10 of the refrigerant pipe 11 located between the first and second compression rings 19 and 24 by the compression of the second compression ring 24 ( 18) and the bush 21 coupled to it is compressed.

이로 인해, 황동재로 형성된 제1,2압축링(19,24) 보다 상대적으로 강도가 약한 테프론재로 형성된 부쉬(21)가 탄성변형된다.For this reason, the bush 21 formed of a Teflon material having relatively weak strength than the first and second compression rings 19 and 24 formed of a brass material is elastically deformed.

즉, 탄성변형된 부쉬(21)에 의해 부쉬(21)의 바닥면에 형성된 제3경사면(20)과 이와 밀착된 확관부(10) 상면 사이를 실링처리할 수 있게 된다.That is, it is possible to seal between the third inclined surface 20 formed on the bottom surface of the bush 21 by the elastically deformed bush 21 and the upper surface of the expansion tube 10 in close contact therewith.

따라서, 서비브밸브(15)에 체결구(27)를 체결하여 제1,2압축링(19,24)의 압축됨에 의해 부쉬(21)를 탄성변형시킴에 따라, 제1압축링(19)의 소경부(18) 외주연과 이와 밀착된 부쉬(21)의 관통공 내주연 사이의 틈새를 1차로 실링처리할 수 있고, 부쉬(21) 바닥면의 제3경사면(20)과 이와 밀착된 냉매관(11)의 확관부(10) 상면 사이의 틈새를 2차로 실링처리할 수 있고, 또한 확관부(10) 바닥면과 이와 밀착된 제2압축링(24)의 상단에 형성된 상부 경사면(22) 사이의 틈새를 3차로 실링처리할 수 있게 된다.Accordingly, as the bush 21 is elastically deformed by the compression of the first and second compression rings 19 and 24 by fastening the fastener 27 to the sub-valve 15, the small size of the first compression ring 19 is The gap between the outer periphery of the neck 18 and the inner periphery of the through hole of the bush 21 in close contact therewith can be sealed first, and the third inclined surface 20 of the bottom surface of the bush 21 and the refrigerant pipe in close contact therewith The gap between the upper surface of the expanded pipe part 10 of (11) can be sealed secondarily, and also between the bottom surface of the expanded pipe part 10 and the upper inclined surface 22 formed at the top of the second compression ring 24 in close contact with it. It becomes possible to seal the gap in the third order.

이로 인해, 전술한 냉매관(11)으로부터 냉매가 유출되는 것을 방지할 수 있다.For this reason, it is possible to prevent the refrigerant from flowing out from the refrigerant pipe 11 described above.

한편, 전술한 체결구(27)에 제2압축링(24), 냉매관(11)의 확관부(10), 소경부(18)에 부쉬(21)가 결합된 제1압축링(19)을 차례대로 수용한 후, 체결구(27)의 나사공(25)에 서비스밸브(15)의 나사부(13)를 나사결합시켜 체결할 경우, 제1압축링(19)의 대경부(17) 바닥면이 체결구(27) 내측면에 형성된 걸림턱(28)에 안착된 상태를 유지하게 된다.On the other hand, the second compression ring 24 to the fastener 27 described above, the expansion pipe 10 of the refrigerant pipe 11, and the first compression ring 19 in which the bush 21 is coupled to the small diameter part 18 are sequentially applied. After receiving as is, when fastening by screwing the threaded part 13 of the service valve 15 to the threaded hole 25 of the fastener 27, the bottom surface of the large diameter part 17 of the first compression ring 19 is The fastener 27 is maintained in a seated state on the locking jaw 28 formed on the inner surface.

즉, 서비브밸브(15)에 체결구(27)를 체결하는 체결력에 의해 부쉬(21)가 탄성변형될 경우에도 제1압축링(19)은 걸림턱(28)에 걸려 위치이동하지 않게 된다.That is, even when the bush 21 is elastically deformed by the fastening force for fastening the fastener 27 to the sub-valve 15 , the first compression ring 19 is caught by the clasp 28 and does not move.

이로 인해, 전술한 서비스밸브(15)에 체결구(27)를 체결하여 탄성변형된 부쉬(21)와 냉매관(11)의 확관부(10)를 상호밀착시켜 실링처리할 경우에, 제1압축링(19)은 체결구(27)의 걸림턱(28)에 안착된 상태를 유지하게 되므로 부쉬(21)를 필요이상으로 가압하지않게 된다.For this reason, when sealing the bush 21 elastically deformed by fastening the fastener 27 to the above-described service valve 15 and the expansion pipe 10 of the refrigerant pipe 11 to each other, the first Since the compression ring 19 maintains a state seated on the locking jaw 28 of the fastener 27, the bush 21 is not pressed more than necessary.

따라서, 부쉬(21)가 크랙 등으로 인해 파손되는 것을 방지할 수 있게 된다.Accordingly, it is possible to prevent the bush 21 from being damaged due to cracks or the like.

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.Here, although the foregoing specification has been described with reference to preferred embodiments, those skilled in the art can variously modify and modify the present specification without departing from the spirit and scope of the present specification as set forth in the following claims. You will understand that you can change it.

10; 확관부
11; 냉매관
12; 제1경사면
13; 나사부
14; 연결포트
15; 서비스밸브
16; 제2경사면
17; 대경부
18; 소경부
19; 제1압축링
20; 제3경사면
21; 부쉬
22; 상부 경사면
23; 하부 경사면
24; 제2압축링
25; 나사공
26; 제4경사면
27; 체결구
28; 결림턱10; expansion department
11; refrigerant pipe
12; 1st slope
13; threaded part
14; connection port
15; service valve
16; 2nd slope
17; Daekyungbu
18; small neck
19; 1st compression ring
20; 3rd slope
21; bush
22; upper slope
23; lower slope
24; 2nd compression ring
25; screwdriver
26; 4th slope
27; fasteners
28; stiff jaw

Claims (2)

에어컨의 실외기에 냉매관을 이음연결하기 위한 연결장치에 적용되고,
단부에 확관부가 형성되고, 알루미늄재의 냉매관;
단부에 제1경사면이 형성되고 외주연에 나사부가 형성되는 연결포트를 포함하는 서비스밸브;
중앙에 관통공이 형성되고 상기 제1경사면에 대응되는 제2경사면이 대경부의 상단에 형성되며, 하단에 소경부가 연장형성되는 제1압축링;
중앙에 관통공이 형성되고 상기 소경부 외주연에 결합되며, 상기 확관부 상면과 밀착되는 제3경사면이 하단에 형성되는 부쉬;
중앙에 관통공이 형성되고 상기 확관부 바닥면에 밀착되는 상부 경사면이 상단에 형성되며, 외주연 하단에 하부 경사면이 형성되는 제2압축링;
상기 나사부와 대응되는 나사공이 내주연 입구측에 형성되고, 상기 하부 경사면에 대응되는 제4경사면이 하단에 형성되는 체결구;를 구비함에 따라,
상기 제2압축링, 냉매관, 부쉬 및 제1압축링이 차례로 수용되는 상기 체결구에 상기 서비스밸브를 체결할 경우, 상기 확관부의 상면 및 바닥면에 밀착되는 상기 부쉬 및 제2압축링을 압축시켜 실링처리할 수 있도록 한 것을 특징으로 하는 에어컨용 냉매 배관 연결장치.It is applied to the connecting device for jointly connecting the refrigerant pipe to the outdoor unit of the air conditioner,
An expansion pipe portion is formed at the end, the coolant pipe made of an aluminum material;
a service valve including a connection port having a first inclined surface formed at an end portion and a threaded portion formed on an outer periphery;
a first compression ring in which a through hole is formed in the center, a second inclined surface corresponding to the first inclined surface is formed at the upper end of the large-diameter portion, and the small-diameter portion is extended at the lower end;
a bush having a through hole formed in the center, coupled to the outer periphery of the small-diameter portion, and having a third inclined surface in close contact with the upper surface of the expansion tube portion formed at the lower end;
a second compression ring having a through hole formed in the center, an upper inclined surface in close contact with the bottom surface of the expansion pipe, formed at the upper end, and a lower inclined surface formed at the lower end of the outer periphery;
A screw hole corresponding to the screw part is formed on the inner periphery inlet side, and a fastener having a fourth inclined surface corresponding to the lower inclined surface formed at the lower end;
When the service valve is fastened to the fastener in which the second compression ring, the refrigerant pipe, the bush and the first compression ring are accommodated in sequence, the bush and the second compression ring that are in close contact with the top and bottom surfaces of the expanded pipe part are compressed and sealed. Refrigerant pipe connection device for air conditioner, characterized in that it can be processed. 제1항에 있어서,
상기 체결구의 내주연에 형성되고 상기 제1압축링의 대경부 바닥면이 안착되는 걸림턱;을 구비하되, 상기 체결구에 상기 서비스밸브를 체결할 경우 상기 제1압축링에 필요이상으로 가해지는 외력에 의해 테프론재의 상기 부쉬가 파손되는 것을 방지할 수 있도록 한 것을 특징으로 하는 에어컨용 냉매 배관 연결장치.According to claim 1,
and a locking jaw formed on the inner periphery of the fastener and on which the bottom surface of the large-diameter part of the first compression ring is seated; Refrigerant piping connection device for air conditioner, characterized in that it is possible to prevent the bush of Teflon material from being damaged by the
KR1020200040610A 2020-04-03 2020-04-03 a connecting device of refrigerant of air conditioner KR20210123468A (en)

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