KR20090040143A - Reciprocompressor - Google Patents

Reciprocompressor Download PDF

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Publication number
KR20090040143A
KR20090040143A KR1020070105775A KR20070105775A KR20090040143A KR 20090040143 A KR20090040143 A KR 20090040143A KR 1020070105775 A KR1020070105775 A KR 1020070105775A KR 20070105775 A KR20070105775 A KR 20070105775A KR 20090040143 A KR20090040143 A KR 20090040143A
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KR
South Korea
Prior art keywords
sleeve
fixing member
connecting rod
reciprocating compressor
circumferential surface
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Application number
KR1020070105775A
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Korean (ko)
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KR101334252B1 (en
Inventor
박복안
박동우
Original Assignee
엘지전자 주식회사
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Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020070105775A priority Critical patent/KR101334252B1/en
Priority to CN200880112099.7A priority patent/CN102171456B/en
Priority to PCT/KR2008/005946 priority patent/WO2009051371A2/en
Publication of KR20090040143A publication Critical patent/KR20090040143A/en
Application granted granted Critical
Publication of KR101334252B1 publication Critical patent/KR101334252B1/en

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    • 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
    • F04B39/0005—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 adaptations of pistons
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • 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
    • F04B39/0005—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 adaptations of pistons
    • F04B39/0022—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 adaptations of pistons piston rods
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
    • 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
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • 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
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • F05B2260/301—Retaining bolts or nuts
    • 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
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/50—Intrinsic material properties or characteristics
    • F05B2280/5001—Elasticity
    • 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

Abstract

A reciprocating compressor is provided to prevent the deformation of sleeve and to raise the efficiency of compressor by using a separate fixing member. A reciprocating compressor comprises a connecting rod(23) converting the rotational motion of the drive motor into the linear motion, a piston which is combined in the connecting rod and reciprocates to the straight line in cylinder and compresses refrigerant, a sleeve(22) which is inserted into the connecting rod and rotates to slide to the eccentric portion of the axis of rotation, and a fixing member(31) which is combined in the connecting rod and fixes the sleeve.

Description

왕복동식 압축기{RECIPROCOMPRESSOR}Reciprocating Compressor {RECIPROCOMPRESSOR}

본 발명은 구동모터의 회전운동을 전달받아 피스톤이 직선운동을 하는 왕복동식 압축기에 관한 것이다.The present invention relates to a reciprocating compressor in which a piston receives a rotational motion of a drive motor and makes a linear motion.

일반적으로 왕복동식 압축기는 피스톤이 실린더에서 직선 왕복운동을 하면서 냉매를 흡입 압축하여 토출하는 방식이다. 상기 왕복동식 압축기는 리니어 모터가 채용되는 방식과 회전모터가 채용되는 방식으로 구분할 수 있다. 후자의 경우는 구동모터의 회전축과 피스톤 사이를 커넥팅로드로 연결하여 상기 구동모터의 회전력이 상기 피스톤의 직선운동으로 전환되도록 한다. 이를 위해, 상기 회전축의 편심부와 상기 커넥팅로드 사이에는 슬리브가 개재되어 상기 커넥팅로드가 상기 회전축에 대해 원활하게 미끄러져 회전하면서 전후진운동을 하게 된다.In general, a reciprocating compressor is a method in which a piston sucks and compresses a refrigerant while linearly reciprocating in a cylinder. The reciprocating compressor may be classified into a method in which a linear motor is employed and a method in which a rotary motor is employed. In the latter case, a connecting rod is connected between the rotary shaft of the drive motor and the piston so that the rotational force of the drive motor is converted into the linear motion of the piston. To this end, a sleeve is interposed between the eccentric portion of the rotary shaft and the connecting rod so that the connecting rod slides smoothly with respect to the rotary shaft and rotates back and forth.

그러나, 상기와 같은 종래의 슬리브는 상기 커넥팅로드에 압입되어 고정되는 것이나, 이는 상기 슬리브가 압입되는 과정이나 압입된 후에 상기 커넥팅로드에 눌려 내주면쪽으로 변형되어 상기 회전축의 편심부와 원활하게 미끄러지지 않게 되고 이로 인해 압축기 효율이 저하되는 문제점이 있었다.However, the conventional sleeve as described above is pressed and fixed to the connecting rod, but it is depressed toward the inner circumferential surface by being pressed by the connecting rod during the press fitting process or after the sleeve is not slipped smoothly with the eccentric portion of the rotating shaft. This causes a problem that the compressor efficiency is lowered.

본 발명은 종래 왕복동식 압축기가 가지는 문제점을 해결한 것으로, 상기 슬리브를 커넥팅로드에 결합할 때 상기 슬리브가 변형되는 것을 방지하여 압축기의 효율을 높일 수 있는 왕복동식 압축기를 제공하려는데 본 발명의 목적이 있다.The present invention solves the problems of the conventional reciprocating compressor, and to provide a reciprocating compressor that can increase the efficiency of the compressor by preventing the sleeve from being deformed when the sleeve is coupled to the connecting rod. have.

본 발명의 목적을 달성하기 위하여, 구동모터; 상기 구동모터의 회전축에 편심지게 결합되어 상기 구동모터의 회전운동을 직선운동으로 전환하는 는 커넥팅로드; 상기 커넥팅로드에 결합되어 실린더에서 직선으로 왕복운동을 하면서 냉매를 압축하는 피스톤; 상기 커넥팅로드에 삽입되어 상기 회전축의 편심부에 대해 미끄럼 회전운동을 하는 슬리브; 및 상기 커넥팅로드에 결합되어 상기 슬리브를 고정하는 고정부재;를 포함한 왕복동식 압축기가 제공된다.In order to achieve the object of the present invention, a drive motor; A connecting rod which is eccentrically coupled to the rotating shaft of the driving motor and converts the rotational movement of the driving motor into a linear movement; A piston coupled to the connecting rod to compress the refrigerant while linearly reciprocating in the cylinder; A sleeve which is inserted into the connecting rod and slides relative to the eccentric portion of the rotating shaft; And a fixing member coupled to the connecting rod to fix the sleeve.

본 발명에 의한 왕복동식 압축기는, 상기 슬리브를 커넥팅로드에 결합할 때 별도의 고정부재를 이용하여 고정함에 따라 상기 슬리브가 변형되는 것을 미연에 방지할 수 있고 이를 통해 상기 슬리브가 상기 회전축의 편심부에 대해 원활하게 미끄럼 회전운동을 하게 됨에 따라 상기 피스톤과 실린더블록 사이의 마모를 미연에 방지하여 압축기의 효율을 높일 수 있다.In the reciprocating compressor according to the present invention, when the sleeve is coupled to the connecting rod by using a separate fixing member, the sleeve can be prevented from being deformed and thus the sleeve is eccentric of the rotating shaft. By smoothly sliding the rotary motion to prevent the wear between the piston and the cylinder block in advance can increase the efficiency of the compressor.

이하, 본 발명에 의한 왕복동식 압축기를 첨부도면에 도시된 일실시예에 의 거하여 상세하게 설명한다.Hereinafter, the reciprocating compressor according to the present invention will be described in detail based on the embodiment shown in the accompanying drawings.

도 1에 도시된 바와 같이 본 발명에 의한 왕복동식 압축기는, 케이싱(1)의 내측에 설치하여 외부에서 공급되는 전원에 의해 회전력을 발생하도록 고정자(11)와 회전자(12) 그리고 회전축(13)으로 된 전동기구부(10)와, 상기 케이싱(1)의 내부에서 상기 전동기구부(10)의 회전축(13)에 결합되어 그 전동기구부(10)의 회전력을 전달받아 냉매를 흡입 압축하는 압축기구부(20)를 포함하고 있다.As shown in FIG. 1, the reciprocating compressor according to the present invention includes a stator 11, a rotor 12, and a rotating shaft 13 installed inside the casing 1 to generate rotational force by power supplied from the outside. Compressor part that is coupled to the transmission mechanism unit 10 of the) and the rotating shaft 13 of the transmission mechanism unit 10 in the casing (1) to receive the rotational force of the transmission mechanism unit 10 to suck and compress the refrigerant. It contains 20.

상기 압축기구부(20)는 상기 케이싱(1)의 내부에 횡방향으로 배치되고 그 일측에 압축공간(미부호)을 반경방향으로 형성하는 실린더블록(21)과, 상기 실린더블록(21)의 상면에 얹힌 상기 회전축(13)의 편심부(13a)에 회전 가능하게 삽입되는 슬리브(22)와, 상기 슬리브(22)의 외주면에 결합되어 상기 회전축(13)의 회전운동을 후술할 피스톤(24)의 왕복운동으로 변환하는 커넥팅로드(23)와, 상기 커넥팅로드(23)의 타단에 결합되어 상기 실린더블록(21)의 압축공간의 내부에서 상기 회전축(13)의 반경방향으로 왕복운동을 하는 피스톤(24)과, 상기 실린더블록(21)의 토출측에 설치되어 냉매의 흡입과 토출을 조절하는 밸브조립체(25)와, 상기 실린더블록(21)의 일측에 설치되고 소정의 토출공간(미부호)을 구비하여 밸브조립체(25)에 고정되는 토출커버(26)와, 상기 밸브조립체(25)의 흡입측에 연통되도록 상기 토출커버(26)에 결합되는 흡입머플러(27)와, 상기 토출커버(27)를 통해 상기 밸브조립체(25)의 토출측에 연통되도록 상기 실린더블록(21)에 장착되는 토출머플러(28)를 포함한다. 그리고 상기 슬리브(22)와 커넥팅로드(23)의 사이에는 상기 슬리브(22)가 커넥팅로드(23)에 고정될 수 있도록 고정부재(31)가 설치된다.The compression mechanism 20 is arranged in the transverse direction inside the casing (1) and the cylinder block 21 for forming a compression space (unsigned) on one side in the radial direction, and the upper surface of the cylinder block 21 A sleeve 22 rotatably inserted into the eccentric portion 13a of the rotary shaft 13 mounted on the piston 22, and a piston 24 coupled to an outer circumferential surface of the sleeve 22 to describe the rotational movement of the rotary shaft 13 to be described later. A connecting rod 23 for converting into a reciprocating motion of the piston and a piston coupled to the other end of the connecting rod 23 to reciprocate in the radial direction of the rotation shaft 13 in the compression space of the cylinder block 21. (24), a valve assembly (25) installed on the discharge side of the cylinder block (21) to regulate suction and discharge of the refrigerant, and a predetermined discharge space (unsigned) on one side of the cylinder block (21). A discharge cover 26 fixed to the valve assembly 25 and having the valve assembly A suction muffler 27 coupled to the discharge cover 26 to communicate with the suction side of the sieve 25 and the cylinder block 21 to communicate with the discharge side of the valve assembly 25 through the discharge cover 27. The discharge muffler 28 is mounted to the. In addition, a fixing member 31 is installed between the sleeve 22 and the connecting rod 23 so that the sleeve 22 can be fixed to the connecting rod 23.

도 2 및 도 3에서와 같이, 상기 슬리브(22)는 소정의 직경을 가지는 원통모양으로 형성되고, 상기 커넥팅로드(23)는 그 일측에 상기 슬리브(22)가 삽입될 수 있도록 원띠모양으로 연결부(23a)가 형성된다. 상기 슬리브(22)의 외경은 상기 케넥팅로드(23)의 연결부(23a) 내경과 대략 동일하거나 적어도 작게 형성되는 것이 상기 슬리브(22)가 상기 케넥팅로드(23)의 연결부(23a)에 원활하게 삽입될 수 있어 바람직할 수 있다. 그리고 도 4에서와 같이, 상기 고정부재(31)는 그 내경(D1)이 상기 슬리브(22)의 외경(D2)보다 적어도 같거나 작게 형성되는 것이 상기 고정부재(31)의 내주면 일부가 상기 슬리브(22)의 외주면 일부에 밀착될 수 있어 바람직할 수 있다.2 and 3, the sleeve 22 is formed in a cylindrical shape having a predetermined diameter, the connecting rod 23 is a connecting portion in the shape of a circle so that the sleeve 22 can be inserted into one side thereof. 23a is formed. The outer diameter of the sleeve 22 is formed to be substantially the same or at least smaller than the inner diameter of the connecting portion 23a of the connecting rod 23, the sleeve 22 is smooth to the connecting portion 23a of the connecting rod 23. It may be preferable to be inserted. As shown in FIG. 4, the fixing member 31 is formed such that its inner diameter D1 is at least equal to or smaller than the outer diameter D2 of the sleeve 22. It may be in close contact with a part of the outer circumferential surface of (22) and may be preferable.

상기 슬리브(22)는 그 외주면이 밋밋하게 형성될 수도 있으나, 경우에 따라서는 도 6에서와 같이 그 외주면에 상기 고정부재(31)의 양단이 삽입되어 축방향으로 구속될 수 있도록 원주방향을 따라 원호형상으로 고정홈(22a)이 형성될 수도 있다.The sleeve 22 may have a flat outer circumferential surface, but in some cases, as shown in FIG. 6, both ends of the fixing member 31 may be inserted into the outer circumferential surface to be constrained in the axial direction. The fixing groove 22a may be formed in an arc shape.

상기 고정부재(31)는 그 내주면 전체 또는 일부가 상기 슬리브(22)의 외주면에 밀착되어 상기 슬리브(22)를 커넥팅로드(23)에 고정할 수 있도록 말굽모양 또는 씨(C)자 모양의 호(arc) 형상으로 형성된다. 그리고 상기 고정부재(31)의 양단 사이의 간격(L1)은 상기 슬리브(22)의 외주면에 반경방향으로 삽입될 수 있도록 그 슬리브(22)의 외경(D2)보다 크거나 같게 형성될 수도 있으나, 상기 고정부재(31)가 일정정도의 오므라드는 탄성을 갖거나 상기 슬리브(22)의 외주면에 홈이 형성되는 경우에는 그 슬리브(22)의 외경(D2)보다 작게 형성될 수도 있다. The fixing member 31 is a horseshoe or seed (C) shaped arc so that all or part of the inner circumferential surface thereof is in close contact with the outer circumferential surface of the sleeve 22 to fix the sleeve 22 to the connecting rod 23. It is formed in an arc shape. And the distance (L1) between both ends of the fixing member 31 may be formed to be greater than or equal to the outer diameter (D2) of the sleeve 22 so that it can be inserted in the radial direction on the outer peripheral surface of the sleeve 22, When the fixing member 31 has a certain degree of elasticity or a groove is formed on the outer circumferential surface of the sleeve 22, the fixing member 31 may be smaller than the outer diameter D2 of the sleeve 22.

상기 고정부재(31)는 상기 커넥팅로드(23)의 연결부(23a) 상면에 조립되어 고정되는데, 이를 위해서는 도 3에서와 같이 상기 커넥팅로드(23)의 연결부(23a) 상면에 체결홈(23b)이 형성되고 상기 고정부재(31)에 관통공(31a)이 형성되어 볼트(32)로 체결하거나, 또는 도 5에서와 같이 상기 커넥팅로드(23)의 연결부(23a)에 관통공(23c)이 형성되고 상기 고정부재(31)에도 관통공(31a)이 형성되어 리벳(33)으로 체결할 수 있다. The fixing member 31 is assembled and fixed to the upper surface of the connecting portion 23a of the connecting rod 23. To this end, the fastening groove 23b is attached to the upper surface of the connecting portion 23a of the connecting rod 23 as shown in FIG. Is formed and a through hole 31a is formed in the fixing member 31 to be fastened with a bolt 32, or a through hole 23c is formed in the connecting portion 23a of the connecting rod 23 as shown in FIG. The through member 31a is also formed in the fixing member 31, and may be fastened with the rivet 33.

한편, 도 6에서와 같이, 상기 슬리브(22)의 외주면에는 상기 고정부재(31)가 삽입되어 그 고정부재(31)의 내주면 상단이 축방향으로 걸려 고정될 수 있도록 원형띠 모양의 고정홈(22a)이 음각지게 형성될 수도 있다.On the other hand, as shown in Figure 6, the outer circumferential surface of the sleeve 22 is inserted into the fixing member 31 so that the upper end of the inner circumferential surface of the fixing member 31 is fixed in the circumferential band-shaped fixing groove ( 22a) may be formed intaglio.

상기와 같은 본 발명에 의한 왕복동식 압축기는 다음과 같은 작용 효과가 있다.The reciprocating compressor according to the present invention as described above has the following effects.

즉, 상기 전동기구부(10)에 전원을 인가하면, 상기 고정자(11)와 회전자(12)의 상호작용력에 의해 상기 회전축(13)이 회전을 하고, 상기 회전축(13)의 편심부(13a)에 슬리브(22)와 함께 삽입되는 커넥팅로드(23)가 선회운동을 하면서 직선운동을 하여 상기 피스톤(24)이 실린더블록(21)의 압축공간에서 왕복운동을 하며, 상기 피스톤(24)의 왕복운동에 의해 냉매가 상기 흡입머플러(27)와 밸브조립체(25)의 흡입밸브(미도시)를 통해 상기 실린더블록(21)의 압축공간로 흡입되었다가 상기 밸브조립체(25)의 토출밸브(미도시)를 통해 상기 토출커버(26)와 토출머플러(28)를 차례대로 거쳐 토출되는 일련의 과정을 반복하게 된다.That is, when power is applied to the power mechanism unit 10, the rotating shaft 13 is rotated by the interaction force between the stator 11 and the rotor 12, the eccentric portion 13a of the rotating shaft 13 The connecting rod 23 is inserted into the sleeve 22 to the linear movement while making a pivoting movement to the piston 24 is reciprocating in the compression space of the cylinder block 21, the piston 24 of the The refrigerant is sucked into the compression space of the cylinder block 21 through a suction valve (not shown) of the suction muffler 27 and the valve assembly 25 by a reciprocating motion, and then the discharge valve of the valve assembly 25 ( Through the discharge cover 26 and the discharge muffler 28 in order through the discharge is repeated a series of processes are not repeated.

이때, 상기 슬리브(22)가 상기 커넥팅로드(23)의 연결부(23a)에 압입되어 고 정되는 경우에는 상기 슬리브(22)가 커넥팅로드(23)의 연결부(23a)에 압입되는 과정에서 변형될 수 있고 이로 인해 상기 슬리브(22)의 내주면이 상기 회전축(13)의 편심부(13a) 외주면과의 사이에서 마찰손실이 증가하게 될 수 있으나, 본 발명과 같이 상기 슬리브(22)의 외경(D2)이 상기 커넥팅로드(23)의 연결부(23a) 내경(D1)보다 같거나 작게 형성하여 삽입하고 상기 커넥팅로드(23)에 조립되는 고정부재(31)를 이용하여 상기 슬리브(22)를 고정하게 되면 상기 슬리브(22)가 상기 커넥팅로드(23)의 연결부(23a)에 삽입되는 과정에서 상기 슬리브(22)가 변형될 우려가 없고 이로 인해 상기 슬리브(22)가 상기 회전축(13)의 편심부(13a)에 대해 원활하게 미끄럼 회전운동을 하게 됨에 따라 상기 피스톤(24)과 실린더블록(21) 사이의 마모를 미연에 방지하여 압축기의 효율을 높일 수 있다.In this case, when the sleeve 22 is press-fitted into the connecting portion 23a of the connecting rod 23 and fixed, the sleeve 22 may be deformed in the process of pressing into the connecting portion 23a of the connecting rod 23. The frictional loss may be increased between the inner circumferential surface of the sleeve 22 and the outer circumferential surface of the eccentric portion 13a of the rotation shaft 13, but the outer diameter D2 of the sleeve 22 may be increased as in the present invention. ) Is inserted into and formed smaller than or equal to the inner diameter (D1) of the connecting portion (23a) of the connecting rod 23 to fix the sleeve (22) by using a fixing member (31) assembled to the connecting rod (23). When the sleeve 22 is inserted into the connecting portion 23a of the connecting rod 23, there is no fear that the sleeve 22 is deformed, so that the sleeve 22 is the eccentric portion of the rotating shaft 13. The piston 24 as the slide rotation smoothly with respect to (13a) Prevents wear between the cylinder block 21 in advance and it is possible to increase the efficiency of the compressor.

도 1은 본 발명 왕복동식 압축기의 일례를 보인 종단면도,1 is a longitudinal sectional view showing an example of the reciprocating compressor of the present invention;

도 2는 도 1에 따른 왕복동식 압축기에서 슬리브의 고정 장치를 분해하여 보인 사시도,Figure 2 is an exploded perspective view showing the fixing device of the sleeve in the reciprocating compressor according to Figure 1,

도 3은 도 2에 따른 슬리브의 고정 장치를 조립하여 보인 종단면도,3 is a longitudinal sectional view showing the assembly of the fixing device of the sleeve according to FIG.

도 4는 도 2에 따른 슬리브의 고정 장치를 조립하여 보인 평면도,4 is a plan view showing the assembly of the fixing device of the sleeve according to FIG.

도 5 및 도 6은 도 1에 따른 왕복동식 압축기에서 슬리브의 고정 장치에 대한 다른 실시예를 보인 종단면도.5 and 6 are longitudinal cross-sectional views showing another embodiment of the fixing device of the sleeve in the reciprocating compressor according to FIG.

Claims (11)

구동모터;Drive motor; 상기 구동모터의 회전축에 편심지게 결합되어 상기 구동모터의 회전운동을 직선운동으로 전환하는 는 커넥팅로드;A connecting rod which is eccentrically coupled to the rotating shaft of the driving motor and converts the rotational movement of the driving motor into a linear movement; 상기 커넥팅로드에 결합되어 실린더에서 직선으로 왕복운동을 하면서 냉매를 압축하는 피스톤;A piston coupled to the connecting rod to compress the refrigerant while linearly reciprocating in the cylinder; 상기 커넥팅로드에 삽입되어 상기 회전축의 편심부에 대해 미끄럼 회전운동을 하는 슬리브; 및A sleeve which is inserted into the connecting rod and slides relative to the eccentric portion of the rotating shaft; And 상기 커넥팅로드에 결합되어 상기 슬리브를 고정하는 고정부재;를 포함한 왕복동식 압축기.And a fixing member coupled to the connecting rod to fix the sleeve. 제1항에 있어서,The method of claim 1, 상기 고정부재는 양단을 갖는 호(arc) 모양으로 형성되는 왕복동식 압축기.The fixing member is a reciprocating compressor is formed in an arc shape having both ends. 제2항에 있어서,The method of claim 2, 상기 고정부재는 그 내경이 상기 슬리브의 외경보다 적어도 같거나 작게 형성되는 왕복동식 압축기.The fixing member is a reciprocating compressor of which the inner diameter is formed at least equal to or smaller than the outer diameter of the sleeve. 제2항에 있어서,The method of claim 2, 상기 고정부재는 그 양단 사이의 거리가 상기 슬리브의 외경보다 작거나 같게 형성되는 왕복동식 압축기.The fixing member is a reciprocating compressor is formed such that the distance between both ends is less than or equal to the outer diameter of the sleeve. 제4항에 있어서,The method of claim 4, wherein 상기 슬리브는 그 외주면에 상기 고정부재의 양단이 삽입될 수 있도록 고정홈이 형성되는 왕복동식 압축기.The sleeve is a reciprocating compressor having a fixing groove is formed so that both ends of the fixing member can be inserted into the outer peripheral surface. 제4항에 있어서,The method of claim 4, wherein 상기 고정부재는 오므라드는 방향으로 탄성력을 가지도록 형성되는 왕복동식 압축기.The fixing member is a reciprocating compressor is formed to have an elastic force in the retracted direction. 제2항에 있어서,The method of claim 2, 상기 고정부재는 그 양단 사이의 거리가 상기 슬리브의 외경보다 크게 형성되는 왕복동식 압축기.The fixing member is a reciprocating compressor, the distance between both ends is formed larger than the outer diameter of the sleeve. 제1항에 있어서,The method of claim 1, 상기 고정부재는 그 내주면이 상기 슬리브의 외주면에 적어도 한 점에서 밀착되도록 형성되는 왕복동식 압축기.The fixing member is a reciprocating compressor is formed such that its inner peripheral surface is in close contact with at least one point on the outer peripheral surface of the sleeve. 제1항에 있어서,The method of claim 1, 상기 슬리브는 그 외주면이 원형으로 형성되고, 상기 고정부재는 상기 슬리브의 외주면에 적어도 어느 한 점이 밀착되도록 원호형으로 형성되는 왕복동식 압축기.The outer circumferential surface of the sleeve is formed in a circular shape, the fixing member is formed in an arc shape so that at least one point is in close contact with the outer circumferential surface of the sleeve. 제1항에 있어서,The method of claim 1, 상기 슬리브는 그 외주면에 원주방향으로 적어도 한 개의 고정홈이 형성되어 그 고정홈에 상기 고정부재가 삽입되는 왕복동식 압축기.The sleeve is a reciprocating compressor in which at least one fixing groove is formed in the circumferential direction on its outer circumferential surface and the fixing member is inserted into the fixing groove. 제1항에 있어서,The method of claim 1, 상기 고정부재는 상기 커넥팅로드에 볼트 또는 리벳 고정되는 왕복동식 압축기.The fixing member is a reciprocating compressor that is bolted or riveted to the connecting rod.
KR1020070105775A 2007-10-19 2007-10-19 Reciprocompressor KR101334252B1 (en)

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PCT/KR2008/005946 WO2009051371A2 (en) 2007-10-19 2008-10-09 Reciprocompressor

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