KR20010046223A - Hermetic compressor - Google Patents

Hermetic compressor Download PDF

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Publication number
KR20010046223A
KR20010046223A KR1019990049910A KR19990049910A KR20010046223A KR 20010046223 A KR20010046223 A KR 20010046223A KR 1019990049910 A KR1019990049910 A KR 1019990049910A KR 19990049910 A KR19990049910 A KR 19990049910A KR 20010046223 A KR20010046223 A KR 20010046223A
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KR
South Korea
Prior art keywords
casing
connection pipe
pipe
hermetic compressor
section
Prior art date
Application number
KR1019990049910A
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Korean (ko)
Inventor
이순구
Original Assignee
구자홍
엘지전자 주식회사
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Priority to KR1019990049910A priority Critical patent/KR20010046223A/en
Publication of KR20010046223A publication Critical patent/KR20010046223A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/20—Manufacture essentially without removing material
    • F05B2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05B2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/902—Hermetically sealed motor pump unit

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressor (AREA)

Abstract

PURPOSE: A hermetic compressor is provided to reduce parts count and improve welding workability, while minimizing poor air-tightness. CONSTITUTION: A hermetic compressor comprises a casing(11) having a closed space formed in the casing, and a penetrating hole(13a) communicated to the outside; a compression chamber(21) accommodated within the casing, and which forms a fluid compression space(S) and has a fluid inlet path(24) formed to correspond to the penetrating hole; a first connection pipe(26) having an end connected to the outlet side of an accumulator(41) and the other end with a diameter expansion section(27) formed in the radial direction of the first connection pipe; and a second connection pipe(29) having an end inserted into the diameter expansion section of the first connection pipe and the other end inserted into the fluid inlet path through the penetrating hole. The second connection pipe includes a tapered section(30a) for decreasing the outer diameter of the second connection pipe as it goes toward an end of the second connection pipe, an insertion section(30b) to be inserted into the diameter expansion section of the first connection pipe, and a rib(31) formed between the tapered section and the insertion section in such a manner that the rib is protruded in the radial direction of the second connection pipe and extended in the circumferential direction of the pipe.

Description

밀폐형 압축기{HERMETIC COMPRESSOR}Hermetic compressor {HERMETIC COMPRESSOR}

본 발명은, 밀폐형 압축기에 관한 것으로서, 보다 상세하게는, 투입부품을 줄일 수 있고 용접개소를 줄여 용접을 용이하게 할 수 있을 뿐만 아니라 기밀불량을 억제시킬 수 있도록 한 밀폐형 압축기에 관한 것이다.The present invention relates to a hermetic compressor. More particularly, the present invention relates to a hermetic compressor that can reduce input parts, reduce welding points, facilitate welding, and suppress airtight defects.

밀폐형 압축기는, 내부에 밀폐공간을 형성하는 케이싱과, 케이싱내에 수용되어 냉매 등의 유체를 압축하는 압축부와, 케이싱내에 수용되어 압축부에 구동력을 제공하는 전동모터부를 가진다. 케이싱의 일측에는 외부로부터 냉매가 제공될 수 있도록 냉매유입부가 형성되어 있으며, 케이싱의 상부영역에는 압축부로부터 압축된 냉매가 유출될 수 있도록 냉매유출부가 마련되어 있다.The hermetic compressor has a casing which forms a closed space therein, a compression part accommodated in the casing to compress a fluid such as a refrigerant, and an electric motor part accommodated in the casing to provide a driving force to the compression part. One side of the casing is formed with a refrigerant inlet to provide a refrigerant from the outside, the upper region of the casing is provided with a refrigerant outlet so that the compressed refrigerant from the compression portion can flow out.

냉매유입부의 일측에는 기체상태의 냉매가 압축부로 제공될 수 있도록 어큐뮬레이터가 구비된다.An accumulator is provided at one side of the refrigerant inlet unit so that a gaseous refrigerant may be provided to the compression unit.

일반적으로 이러한 밀폐형 압축기는, 압축공간을 형성하는 실린더의 내부에 편심운동가능하게 배치되는 롤러에 의해 냉매를 압축하는 회전압축기와, 실린더의 내부에 왕복동하는 피스톤을 구비하여 냉매를 압축하는 왕복동식 압축기로 대별된다.In general, such a hermetic compressor includes a rotary compressor for compressing a refrigerant by a roller disposed eccentrically in a cylinder forming a compression space, and a reciprocating compressor for compressing a refrigerant by having a reciprocating piston inside the cylinder. It is roughly divided into.

도 1은 종래의 밀폐형 압축기의 부분종단면도이다. 도시된 바와 같이, 본 압축기는 회전압축기로서, 내부에 밀폐공간을 형성하는 케이싱(111)과, 케이싱(111)내에 수용되어 냉매를 압축하는 압축부(115)와, 압축부(115)에 기체상태의 냉매를 제공하도록 설치되는 어큐뮬레이터(117)를 가진다. 압축부(115)는 압축공간(S)을 형성하는 실린더(116)와, 실린더(116)의 내부에 수용되어 실린더(116)의 내경면을 따라 회전운동하면서 냉매를 압축하는 도시 않은 롤러를 구비하며, 실린더(116)에는 압축공간(S)과 연통되도록 냉매의 흡입로(118)가 형성되어 있다.1 is a partial longitudinal sectional view of a conventional hermetic compressor. As shown, the compressor is a rotary compressor, a casing 111 for forming a closed space therein, a compression unit 115 accommodated in the casing 111 to compress the refrigerant, and a gas in the compression unit 115. It has an accumulator 117 installed to provide a refrigerant in a state. The compression unit 115 includes a cylinder 116 forming a compression space S, and a roller (not shown) which is accommodated in the cylinder 116 and compresses the refrigerant while rotating along the inner diameter surface of the cylinder 116. In addition, the cylinder 116 is formed with a suction path 118 of the refrigerant to communicate with the compression space (S).

케이싱(111)의 일측에는 버링(Burring)에 의해 관통공(113a)이 형성되어 있으며, 케이싱(111)의 내부에는 관통공(113a)에 대응하여 냉매 흡입로(118)가 배치되도록 압축부(115)가 수용결합되어 있다. 냉매흡입로(118)에는 관통공(113a)을 통하여 일단이 외부로 토출되는 냉매흡입관(119)이 결합되어 있으며, 냉매흡입관(119)의 노출측 단부에는 일단이 어큐뮬레이터(117)의 유출배관(121)이 삽입되어 있다. 여기서, 냉매흡입관(119) 및 어큐뮬레이터(117)의 유출배관(121)은 제작을 용이하게 할 수 있도록 동관으로 형성되며, 냉매흡입관(119)의 내부에는 강도보강을 위해 강관으로 형성되는 보조배관(120)이 냉매흡입관(119)의 내경면에 외경면이 상호 밀착되도록 수용결합되어 있다.A through hole 113a is formed at one side of the casing 111 by a burring, and a compression unit (123) is disposed inside the casing 111 to correspond to the through hole 113a. 115 is accommodating. The refrigerant suction path 118 is coupled to the refrigerant suction pipe 119, one end of which is discharged to the outside through the through hole 113a, and one end of the refrigerant suction pipe 119 is exposed to the outlet side of the accumulator 117. 121) is inserted. Here, the outlet pipe 121 of the refrigerant suction pipe 119 and the accumulator 117 is formed of a copper pipe to facilitate the production, and the auxiliary pipe formed of a steel pipe for strength reinforcement inside the refrigerant suction pipe 119 ( 120 is accommodated to the inner diameter surface of the refrigerant suction pipe 119 so that the outer diameter surface is in close contact with each other.

냉매흡입관(119)의 둘레영역에는 단부가 소정 길이 노출되도록 연결배관(123)이 결합되어 있으며, 연결배관(123)과 케이싱(111)의 관통공(113a)사이영역에는 거의 삼각단면형상을 가지는 고리형상의 차단부재(125)가 결합되어 있다.The connecting pipe 123 is coupled to the peripheral area of the refrigerant suction pipe 119 so that the end portion is exposed to a predetermined length, and has an almost triangular cross-sectional shape in the area between the connecting pipe 123 and the through hole 113a of the casing 111. Ring-shaped blocking member 125 is coupled.

이러한 구성에 의하여, 냉매흡입관(119)의 내부에 보조배관(120)을 수용결합하고, 냉매흡입관(119)과 케이싱(111)의 관통공(113a)사이에 연결배관(123)을 결합한다. 다음, 연결배관(123)과 케이싱(111)의 관통공(113a)사이에 고리상의 차단부재(125)를 결합하고, 냉매흡입관(119)에 어큐뮬레이터(117)의 유출배관(121)을 삽입결합한다.By such a configuration, the auxiliary pipe 120 is housed and coupled to the inside of the refrigerant suction pipe 119, and the connection pipe 123 is coupled between the refrigerant suction pipe 119 and the through hole 113a of the casing 111. Next, the ring-shaped blocking member 125 is coupled between the connecting pipe 123 and the through hole 113a of the casing 111, and the outlet pipe 121 of the accumulator 117 is inserted into the refrigerant suction pipe 119. do.

다음, 차단부재(125)와 연결배관(123)을 은납 등을 이용하여 납접부(W1)를 형성하고, 케이싱(111)의 관통공(113a)의 버(Burr)(113b)와 차단부재(125)를 전기저항용접 등의 방법으로 용접부(W2)가 형성되도록 한다. 그리고, 연결배관(123)의 단부로부터 냉매흡입관(119)의 단부와 어큐뮬레이터(117)의 유출배관(121)에 이르는 영역에 인동납 등을 이용하여 납접부(W3)를 형성하여 상호 고정결합되도록 한다.Next, the soldering member W1 is formed by using the silver lead, etc. on the blocking member 125 and the connection pipe 123, and the burr 113b and the blocking member (the burr 113b of the through hole 113a of the casing 111). 125 to form a weld portion W2 by electrical resistance welding or the like. Then, the lead portion (W3) is formed in the area from the end of the connection pipe 123 to the end of the refrigerant suction pipe 119 and the outlet pipe 121 of the accumulator 117 by using a solder, etc. to be fixed to each other. do.

그런데, 이러한 종래의 밀폐형 압축기에 있어서는, 가공 및 제작을 용이하게 할 수 있도록 하기 위해 어큐뮬레이터(117)의 유출배관(121) 및 냉매흡입관(119) 등을 동관을 사용하여 제작함으로써, 투입부품이 많아지고 구성이 복잡하게 되는 문제점이 있다. 뿐만 아니라, 이들을 밀봉결합하기 위한 용접개소(W1,W2,W3)가 많아지게 되므로 제작 및 용접시간이 연장될 뿐만 아니라 냉매의 누설가능성이 상대적으로 커지게 되는 문제점이 있다.By the way, in the conventional hermetic compressor, in order to facilitate the processing and fabrication, the outflow pipe 121 and the refrigerant suction pipe 119 of the accumulator 117 are manufactured using copper pipes, whereby a large number of input parts are used. There is a problem that the configuration is complicated. In addition, since the number of welding locations (W1, W2, W3) for sealing coupling them increases, the production and welding time is extended, and there is a problem that the possibility of leakage of the refrigerant is relatively increased.

또한, 연결배관(123)과 냉매흡입관(119)의 단부영역의 납접시 냉매흡입관(119)과 어큐뮬레이터(117)의 유출배관(121)사이의 틈새로 화염이 유입되어 압축부(115)의 압축공간(S)내에 배치되는 롤러 또는 피스톤 등의 부품의 부식을 유발시킬 우려가 있다는 문제점이 있다.In addition, a flame is introduced into the gap between the refrigerant pipe 119 and the outlet pipe 121 of the accumulator 117 when the lead plate of the connecting pipe 123 and the end portion of the refrigerant suction pipe 119 is pressed to compress the compression unit 115. There is a problem that there is a fear of causing corrosion of parts such as a roller or a piston arranged in the space S.

따라서, 본 발명의 목적은, 투입부품을 줄일 수 있고 용접개소를 줄여 용접을 용이하게 할 수 있을 뿐만 아니라 기밀불량을 억제시킬 수 있는 밀폐형 압축기를 제공하는 것이다.Accordingly, it is an object of the present invention to provide a hermetic compressor which can reduce input parts, reduce welding points, facilitate welding, and suppress airtight defects.

도 1은 종래의 밀폐형 압축기의 부분종단면도,1 is a partial longitudinal sectional view of a conventional hermetic compressor,

도 2는 본 발명의 일 실시예에 따른 밀폐형 압축기의 부분종단면도,2 is a partial longitudinal sectional view of the hermetic compressor according to the embodiment of the present invention;

도 3은 도 2의 제2연결관의 사시도이다.3 is a perspective view of the second connector of FIG. 2.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

11 : 케이싱 13a : 관통공11 casing 13a through hole

13b : 버 23 : 실린더13b: Burr 23: cylinder

24 : 냉매흡입로 25a :테이퍼구간부24: refrigerant suction passage 25a: tapered section

26 : 제1연결관 27 : 확경부26: the first connector 27: expansion part

29 : 제2연결관 30a : 테이퍼부29: second connector 30a: tapered portion

31 : 리브 33 : 용접부31: rib 33: weld

41 : 어큐뮬레이터41: accumulator

상기 목적은, 본 발명에 따라, 내부에 밀폐공간을 형성하며 일측에 외부와 연통되도록 관통공이 형성된 케이싱과; 상기 케이싱내에 수용되어 유체의 압축공간을 형성하며 상기 관통공에 대응되도록 유체의 흡입로가 형성된 압축부와; 일단이 어큐뮬레이터의 유출측에 연결되고 타단에 반경방향을 따라 확장된 확경부가 소정 길이구간에 걸쳐 형성된 제1연결관과; 일단이 상기 제1연결관의 확경부내에 삽입되고 타단이 상기 관통공을 통하여 상기 흡입로내에 소정 길이구간 삽입되는 제2연결관을 포함하는 것을 특징으로 하는 밀폐형 압축기에 의해 달성된다.According to the present invention, a casing formed with a through-hole to form a sealed space therein and communicate with the outside on one side; A compression part accommodated in the casing to form a compression space of the fluid and having a suction path of the fluid to correspond to the through hole; A first connecting pipe having one end connected to the outlet side of the accumulator and having an enlarged diameter portion extending in a radial direction at the other end over a predetermined length section; And a second connecting tube having one end inserted into the enlarged diameter portion of the first connecting tube and the other end inserted into the suction passage through the through hole.

여기서, 상기 제2연결관에는 상기 케이싱과 상기 제1연결관사이에 대응되어 반경방향을 따라 돌출되고 둘레방향을 따라 연장된 리브가 형성되어 있는 것이 바람직하다.Here, the second connecting pipe is preferably formed with a rib which protrudes in the radial direction and extends in the circumferential direction corresponding to the casing and the first connecting pipe.

그리고, 상기 케이싱과 상기 제1연결관 및 상기 제2연결관은 상기 리브의 둘레방향을 따라 일체로 밀봉결합되는 것이 효과적이다.In addition, the casing, the first connecting pipe and the second connecting pipe may be effectively sealed integrally along the circumferential direction of the rib.

또한, 상기 제2연결관에는 상기 흡입로측 단부로 향할수록 외경면의 반경이 점진적으로 축소되는 테이퍼부가 소정 길이구간에 걸쳐 형성되어 있으며, 상기 압축부의 흡입로에는 상기 테이퍼부에 대응하여 테이퍼구간부가 소정 길이구간에 걸쳐 형성되어 있는 것이 바람직하다.In addition, the second connecting pipe is formed with a tapered portion over a predetermined length section, the radius of the outer diameter surface is gradually reduced toward the suction path side end, the tapered section corresponding to the tapered portion in the suction path of the compression section It is preferable that the addition is formed over a predetermined length section.

이하에서는 첨부된 도면을 참조하여 본 발명에 대하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention.

도 2는 본 발명의 일 실시예에 따른 밀폐형 압축기의 부분종단면도이고, 도 3은 도 2의 제2연결관의 사시도이다. 이들 도면에 도시된 바와 같이, 본 밀폐형 압축기는, 내부에 밀폐공간을 형성하는 케이싱(11)과, 케이싱(11)의 내부에 배치되어 냉매를 압축하는 압축부(21)와, 압축부(21)에 기체상태의 냉매를 제공할 수 있도록 케이싱(11)의 외부 일측에 배치되는 어큐뮬레이터(41)를 가진다. 케이싱(11)의 하부 일측영역에는 버링에 의해 관통공(13a)이 형성되어 있으며, 케이싱(11)의 내부에는 관통공(13a)에 대응하여 압축부(21)가 수용결합되어 있다.Figure 2 is a partial longitudinal cross-sectional view of the hermetic compressor according to an embodiment of the present invention, Figure 3 is a perspective view of the second connector of FIG. As shown in these figures, the hermetic compressor includes a casing 11 for forming a closed space therein, a compression part 21 disposed inside the casing 11 to compress the refrigerant, and a compression part 21. It has an accumulator 41 disposed on the outer side of the casing 11 to provide a refrigerant in the form of gas. The through hole 13a is formed in the lower one side region of the casing 11 by a burring, and the compression part 21 is accommodated in the casing 11 corresponding to the through hole 13a.

압축부(21)는, 냉매의 압축공간(S)을 형성하는 실린더(23)와, 실린더(23)의 내부에 수용되어 냉매를 압축하는 롤러(미도시)를 가지며, 실린더(23)의 일측에는 압축공간(S)내로 냉매를 흡입할 수 있도록 관통공(13a)에 대응하여 냉매흡입로(24)가 형성되어 있다.The compression unit 21 has a cylinder 23 forming the compressed space S of the refrigerant, and a roller (not shown) accommodated in the cylinder 23 to compress the refrigerant, and one side of the cylinder 23. The refrigerant suction path 24 is formed in correspondence with the through hole 13a so as to suck the refrigerant into the compression space S.

냉매흡입로(24)는 관통공(13a)측으로 향할수록 직경이 증가하도록 소정 길이구간에 걸쳐 테이퍼구간부(25a)가 형성되어 있으며, 이 테이퍼구간부(25a)에는 제2연결관(29)이 소정 길이구간 수용결합되어 있다. 제2연결관(29)의 노출측 단부에는 일단이 어큐뮬레이터(41)의 유출측에 연결된 제1연결관(26)이 결합되어 있다. 제1연결관(26)은 거의 “L”단면형상을 가지며, 자유단부영역에는 반경방향을 따라 직경이 확장된 확경부(27)가 형성되어 있다.The refrigerant suction path 24 has a tapered section 25a formed over a predetermined length section so that the diameter thereof increases toward the through hole 13a, and the second connecting pipe 29 is formed in the tapered section 25a. The predetermined length section is accommodated. The first connection pipe 26, one end of which is connected to the outlet side of the accumulator 41, is coupled to the exposed end of the second connection pipe 29. The first connecting pipe 26 has a substantially “L” cross-sectional shape, and an enlarged diameter portion 27 having a diameter extending in the radial direction is formed in the free end region.

한편, 제2연결관(29)은 일단이 실린더(23)의 테이퍼구간부(25a)내에 삽입될 수 있도록 외경이 길이방향을 따라 단부로 향할수록 점진적으로 감소하도록 형성된 테이퍼부(30a)와, 제1연결관(26)의 확경부(27)내에 삽입되는 삽입부(30b)를 가진다. 이들 테이퍼부(30a)와 삽입부(30b)사이에는 외경면으로부터 반경방향을 따라 돌출되고 둘레방향을 따라 연장된 리브(31)가 형성되어 있다. 여기서, 케이싱(11)과 제1연결관(26) 및 제2연결관(29)은 동관에 비해 가격이 저렴하고 강성이 우수한 강관으로 형성되도록 하는 것이 바람직하다.On the other hand, the second connecting pipe 29 has a tapered portion (30a) formed so that the outer diameter is gradually reduced toward the end in the longitudinal direction so that one end can be inserted into the tapered section (25a) of the cylinder 23, The insertion part 30b inserted into the enlarged diameter part 27 of the 1st connection pipe 26 is provided. Between these taper part 30a and the insertion part 30b, the rib 31 which protrudes along the radial direction from the outer diameter surface and extends along the circumferential direction is formed. Here, it is preferable that the casing 11, the first connecting pipe 26 and the second connecting pipe 29 be formed of a steel pipe having a low cost and excellent rigidity compared to the copper pipe.

이러한 구성에 의하여, 먼저, 제2연결관(29)의 테이퍼부(30a)를 실린더(23)의 테이퍼구간부(25a)에 압입 등의 방법으로 삽입결합하고, 어큐뮬레이터(41)에 결합된 제1연결관(26)의 확경부(27)에 제2연결관(29)의 삽입부(30b)를 삽입결합한다. 그러면, 제2연결관(29)의 리브(31)는 관통공(13a)영역의 버(Burr)(13b)와 제1연결관(26)의 단부사이에 배치되며, 리브(31)의 둘레방향을 따라 아아크용접(Arc Welding)을 실시하여 용접부(33)를 형성함으로써 이들이 상호 고정결합되도록 한다.By such a configuration, first, the tapered portion 30a of the second connecting pipe 29 is inserted into the tapered section 25a of the cylinder 23 by press-fitting or the like, and the first coupling member is coupled to the accumulator 41. The insertion part 30b of the second connecting pipe 29 is inserted into the enlarged diameter portion 27 of the first connecting pipe 26. Then, the rib 31 of the second connecting pipe 29 is disposed between the burr 13b in the through hole 13a and the end of the first connecting pipe 26, and the circumference of the rib 31 is Arc welding is performed along the direction to form a weld 33 so that they are fixed to each other.

전술 및 도시한 실시예에서는 실린더와 롤러를 구비한 압축부를 구비한 회전압축기의 경우를 예를 들어 설명하고 있지만, 압축부를 왕복동식으로 구성한 왕복동식 압축기에도 본 발명이 적용될 수 있음은 물론이다.In the above-described and illustrated embodiments, the case of a rotary compressor including a compression unit having a cylinder and a roller is described as an example, but the present invention can be applied to a reciprocating compressor having a compression unit reciprocating.

전술 및 도시한 실시예에서는, 제2연결관에 테이퍼부를 형성하고 이에 대응하여 냉매흡입로의 일부구간에 테이퍼구간부를 형성한 경우를 예를 들어 설명하고 있지만, 냉매흡입로 및 제2연결관의 외경이 일정한 치수를 가지도록 구성할 수 있음은 물론이다.In the above-described and illustrated embodiments, the tapered portion is formed in the second connecting pipe and the tapered section is formed in a portion of the refrigerant suction path, for example, but the refrigerant suction path and the second connecting pipe Of course, the outer diameter can be configured to have a certain dimension.

이상 설명한 바와 같이, 본 발명에 따르면, 일단이 어큐뮬레이터의 유출측에 연결되고 타단에 확경부가 형성된 제1연결관과, 일단이 실린더의 냉매흡입로에 삽입결합되고 타단이 제1연결관의 확경부내에 삽입되는 제2연결관을 마련하여 상호 결합되도록 함으로써, 투입부품을 절감시킴과 동시에 용접개소를 줄여 용접작업을 쉽게 할 수 있을 뿐만 아니라 기밀불량을 억제시킬 수 있는 밀폐형 압축기가 제공된다.As described above, according to the present invention, one end is connected to the outlet side of the accumulator and the other end has an enlarged diameter portion at the other end, and one end is inserted and coupled to the refrigerant suction path of the cylinder and the other end is extended to the first connection tube. By providing a second connection pipe inserted into the neck portion to be coupled to each other, it is possible to reduce the input parts and at the same time to reduce the welding location to facilitate the welding work, as well as to provide a hermetic compressor that can suppress the gas tightness.

또한 본 발명에 따른 밀폐형 압축기는 제1연결관 및 제2연결관을 강관으로 구성하고 탄산가스(CO2) 아아크용접 등의 방법으로 제1연결관 및 제2연결관을 상호 용접함으로써, 화염이 실린더의 내부로 유입되어 부품의 부식을 초래하던 종래와는 달리 화염이 실린더의 내부로 유입될 염려가 없다.In addition, the hermetic compressor according to the present invention comprises the first connection pipe and the second connection pipe made of steel pipe, and by welding the first connection pipe and the second connection pipe by a method such as carbon dioxide (CO 2 ) arc welding, flame Unlike the conventional method, which is introduced into the cylinder to cause corrosion of the component, there is no fear that the flame may flow into the cylinder.

Claims (4)

내부에 밀폐공간을 형성하며 일측에 외부와 연통되도록 관통공이 형성된 케이싱과; 상기 케이싱내에 수용되어 유체의 압축공간을 형성하며 상기 관통공에 대응되도록 유체의 흡입로가 형성된 압축부와; 일단이 어큐뮬레이터의 유출측에 연결되고 타단에 반경방향을 따라 확장된 확경부가 소정 길이구간에 걸쳐 형성된 제1연결관과; 일단이 상기 제1연결관의 확경부내에 삽입되고 타단이 상기 관통공을 통하여 상기 흡입로내에 소정 길이구간 삽입되는 제2연결관을 포함하는 것을 특징으로 하는 밀폐형 압축기.A casing forming a sealed space therein and having a through hole formed to communicate with the outside at one side; A compression part accommodated in the casing to form a compression space of the fluid and having a suction path of the fluid to correspond to the through hole; A first connecting pipe having one end connected to the outlet side of the accumulator and having an enlarged diameter portion extending in a radial direction at the other end over a predetermined length section; And a second connecting tube having one end inserted into the enlarged diameter portion of the first connecting tube and the other end inserted into the suction passage through the through hole in a predetermined length section. 제1항에 있어서,The method of claim 1, 상기 제2연결관에는 상기 케이싱과 상기 제1연결관사이에 대응되어 반경방향을 따라 돌출되고 둘레방향을 따라 연장된 리브가 형성되어 있는 것을 특징으로 하는 밀폐형 압축기.The second connecting tube is a hermetic compressor, characterized in that the ribs protruding in the radial direction and extending in the circumferential direction corresponding to the casing and the first connecting tube. 제2항에 있어서,The method of claim 2, 상기 케이싱과 상기 제1연결관 및 상기 제2연결관은 상기 리브의 둘레방향을 따라 일체로 밀봉결합되는 것을 특징으로 하는 밀폐형 압축기.The casing, the first connecting pipe and the second connecting pipe is hermetic compressor, characterized in that integrally sealed in the circumferential direction of the rib. 제1항 내지 제3항중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 제2연결관에는 상기 흡입로측 단부로 향할수록 외경면의 반경이 점진적으로 축소되는 테이퍼부가 소정 길이구간에 걸쳐 형성되어 있으며, 상기 압축부의 흡입로에는 상기 테이퍼부에 대응하여 테이퍼구간부가 소정 길이구간에 걸쳐 형성되어 있는 것을 특징으로 하는 밀폐형 압축기.The second connecting pipe has a tapered portion formed over a predetermined length section in which the radius of the outer diameter surface gradually decreases toward the suction passage side end portion, and a tapered section portion is formed in the suction passage of the compression section corresponding to the tapered portion. A hermetic compressor, which is formed over a length section.
KR1019990049910A 1999-11-11 1999-11-11 Hermetic compressor KR20010046223A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101313551B1 (en) * 2006-12-04 2013-10-01 삼성전자주식회사 Hermetic type compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101313551B1 (en) * 2006-12-04 2013-10-01 삼성전자주식회사 Hermetic type compressor

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