KR101177583B1 - Bolting structure for a discharge cover used in a linear compressor - Google Patents

Bolting structure for a discharge cover used in a linear compressor Download PDF

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KR101177583B1
KR101177583B1 KR1020060073948A KR20060073948A KR101177583B1 KR 101177583 B1 KR101177583 B1 KR 101177583B1 KR 1020060073948 A KR1020060073948 A KR 1020060073948A KR 20060073948 A KR20060073948 A KR 20060073948A KR 101177583 B1 KR101177583 B1 KR 101177583B1
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South Korea
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discharge cover
discharge
cylinder
linear compressor
hole
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KR1020060073948A
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Korean (ko)
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KR20080012714A (en
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현성열
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엘지전자 주식회사
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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
    • 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
    • F04B35/045—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 using solenoids
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • 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
    • 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
    • F04B39/122—Cylinder block
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • 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
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • F05B2260/301—Retaining bolts or nuts
    • 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

본 발명은 리니어 압축기의 토출 커버 체결 구조에 관한 것으로, 프레임; 프레임에 설치되는 실린더; 실린더의 일단에 위치되며, 프레임에 고정되는 토출 커버; 그리고, 프레임과 토출 커버를 고정하는 볼트;를 포함하는 리니어 압축기의 토출 커버 체결 구조에 있어서, 볼트는 머리부 및 머리부의 하면에 연결된 스크류부를 구비하며, 토출 커버는 볼트의 스크류부가 관통되는 홀을 구비하며, 홀은 홀 둘레의 일부가 볼트의 머리부와 접촉하지 않는 비접촉부를 구비하는 것을 특징으로 하는 리니어 압축기의 토출 커버 체결 구조를 제공한다.The present invention relates to a discharge cover fastening structure of the linear compressor, the frame; A cylinder installed in the frame; A discharge cover positioned at one end of the cylinder and fixed to the frame; And, in the discharge cover fastening structure of the linear compressor comprising a bolt for fixing the frame and the discharge cover, the bolt has a screw portion connected to the head and the lower surface of the head, the discharge cover has a hole through which the screw portion of the bolt penetrates The hole is provided with a discharge cover fastening structure of the linear compressor, characterized in that the hole is provided with a non-contact portion, a part of the periphery of the hole does not contact the head.

리니어, 압축기, 컴프레셔, 토출 커버, 실린더, 체결, 볼트, 홀 Linear, Compressor, Compressor, Discharge Cover, Cylinder, Tighten, Bolt, Hole

Description

리니어 압축기의 토출 커버 체결 구조{BOLTING STRUCTURE FOR A DISCHARGE COVER USED IN A LINEAR COMPRESSOR}Discharge cover fastening structure of linear compressor {BOLTING STRUCTURE FOR A DISCHARGE COVER USED IN A LINEAR COMPRESSOR}

도 1은 종래의 리니어 압축기의 단면을 나타내는 도면,1 is a view showing a cross section of a conventional linear compressor,

도 2는 본 발명에 따른 리니어 압축기의 토출 커버 체결 구조 단면의 일예를 나타내는 도면,2 is a view showing an example of a cross section of the discharge cover fastening structure of the linear compressor according to the present invention;

도 3은 본 발명에 따른 리니어 압축기의 토출 커버 체결 구조의 평면 및 단면의 일예를 나타내는 도면,3 is a view showing an example of the plane and cross section of the discharge cover fastening structure of the linear compressor according to the present invention;

도 4는 본 발명에 따른 리니어 압축기의 토출 커버 체결 구조의 평면 및 단면의 다른예를 나타내는 도면.4 is a view showing another example of the plane and cross section of the discharge cover fastening structure of the linear compressor according to the present invention.

<도면의 주요부분에 대한 도번의 설명><Description of Tavern on Major Parts of Drawing>

102-피스톤 103-프레임102-piston 103-frame

104-실린더 106-흡입 밸브104-cylinder 106-suction valve

112-토출 밸브 114-토출 스프링112-discharge valve 114-discharge spring

116-토출 커버 118-토출 커버116-discharge cover 118-discharge cover

본 발명은 리니어 압축기의 토출 커버 체결 구조에 관한 것으로, 보다 상세하게는 토출 커버의 체결에 의해 다른 구성의 체결이 변형되는 것을 방지하는 리니어 압축기의 토출 커버 체결 구조에 관한 것이다.The present invention relates to a discharge cover fastening structure of a linear compressor, and more particularly, to a discharge cover fastening structure of a linear compressor which prevents the fastening of another structure from being deformed by the fastening of the discharge cover.

일반적으로 압축기(Compressor)는 전기모터나 터빈 등의 동력발생장치로부터 동력을 전달받아 공기나 냉매 또는 그 밖의 다양한 작동가스를 압축시켜 압력을 높여주는 기계장치로써, 냉장고와 에어컨 등과 같은 가전기기 또는 산업 전반에 걸쳐 널리 사용되고 있다.In general, a compressor is a mechanical device that increases pressure by receiving power from a power generator such as an electric motor or a turbine to compress air, refrigerant, or various other working gases. It is widely used throughout.

이러한 압축기를 크게 분류하면, 피스톤(Piston)과 실린더(Cylinder) 사이에 작동가스가 흡입 및 토출되는 압축공간이 형성되도록 하여 피스톤이 실린더 내부에서 직선 왕복 운동하면서 냉매를 압축시키는 왕복동식 압축기(Reciprocating compressor)와, 편심 회전되는 롤러(Roller)와 실린더(Cylinder) 사이에 작동가스가 흡입 및 토출되는 압축공간이 형성되도록 하여 롤러가 실린더 내벽을 따라 편심 회전되면서 냉매를 압축시키는 회전식 압축기(Rotary compressor)와, 선회 스크롤(Orbiting scroll)과 고정 스크롤(Fixed scroll) 사이에 작동가스가 흡입 및 토출되는 압축공간이 형성되도록 하여 선회 스크롤이 고정 스크롤을 따라 회전되면서 냉매를 압축시키는 스크롤식 압축기(Scroll compressor)로 나뉘어진다.These compressors can be broadly classified into a reciprocating compressor that compresses refrigerant while the piston reciprocates linearly inside the cylinder to form a compression space in which the working gas is sucked and discharged between the piston and the cylinder. And a rotary compressor for compressing the refrigerant while the roller is eccentrically rotated along the inner wall of the cylinder so that a compression space for injecting and discharging the working gas is formed between the eccentrically rotating roller and the cylinder. In order to form a compressed space in which the working gas is sucked and discharged between the orbiting scroll and the fixed scroll, the scroll scroll rotates along the fixed scroll to compress the refrigerant. Divided.

최근에는 왕복동식 압축기 중에서 특히 피스톤이 왕복 직선 운동하는 구동모터에 직접 연결되도록 하여 운동전환에 의한 기계적인 손실이 없어 압축효율을 향상시킬 뿐 아니라 구조가 간단한 리니어 압축기가 많이 개발되고 있다. Recently, among the reciprocating compressors, in particular, the piston is directly connected to the reciprocating linear motion drive motor, so that there is no mechanical loss due to the motion conversion to improve the compression efficiency as well as a simple linear compressor has been developed a lot.

도 1은 종래의 리니어 압축기의 단면을 나타내는 도면으로서, 실린더(4)는 프레임(3)에 설치되고, 피스톤(2)이 실린더(4) 내부에서 왕복 운동하고, 이에 따라 피스톤(2)이 실린더(4)와 피스톤(2) 사이에 형성되는 압축공간(P)으로 흡입된 냉매를 압축시킨 다음, 실린더(4) 일단에 형성된 토출공간(D)으로 냉매가 토출된다. 이를 위해, 토출 커버(16,18)가 토출공간(D)이 형성되도록 실린더(4) 일측에 위치함과 동시에 프레임(3)에 설치되고, 토출 커버(16,18)와 실린더(4) 일단 사이에 압축공간(P)을 개폐하도록 토출 밸브(12)가 위치한다. 이때, 토출 밸브(12)는 토출 커버(16,18)에 설치된 토출 밸브 스프링(14)에 의해서 탄성 지지된다. 여기서, 압축공간(P)으로 냉매가 흡입될 수 있도록 피스톤(2) 일단에는 포트(2h)가 형성되는 동시에 포트(2h)를 개폐하는 박형의 흡입 밸브(6)가 설치된다.1 is a view showing a cross section of a conventional linear compressor, in which the cylinder 4 is installed in the frame 3, the piston 2 reciprocates inside the cylinder 4, and thus the piston 2 moves in the cylinder. The refrigerant sucked into the compression space P formed between the piston 4 and the piston 2 is compressed, and then the refrigerant is discharged into the discharge space D formed at one end of the cylinder 4. To this end, the discharge covers 16 and 18 are located on one side of the cylinder 4 so as to form the discharge space D, and are installed in the frame 3, and the discharge covers 16 and 18 and one end of the cylinder 4 are disposed. The discharge valve 12 is positioned to open and close the compression space P therebetween. At this time, the discharge valve 12 is elastically supported by the discharge valve spring 14 provided on the discharge covers 16 and 18. Here, a port 2h is formed at one end of the piston 2 so that the refrigerant can be sucked into the compression space P, and a thin suction valve 6 for opening and closing the port 2h is installed.

그러나, 종래의 리니어 압축기는 토출 커버(16,18)가 프레임(3)에 볼트(B)로 고정되면서 토출 커버(16,18)에 작용하는 힘이 프레임(3)에 설치된 실린더(4) 측으로 전달되어 체결 변형이 발생하는 문제점이 있었다. 또한 실린더(4)의 체결 변형으로 인하여 작동 불량이 발생하고, 압축기의 효율이 떨어지는 문제점이 있었다.However, in the conventional linear compressor, while the discharge covers 16 and 18 are fixed to the frame 3 with bolts B, the force acting on the discharge covers 16 and 18 is directed to the cylinder 4 side installed in the frame 3. There was a problem that the fastening deformation is delivered. In addition, due to the fastening deformation of the cylinder 4, there is a problem that the operation failure, the efficiency of the compressor is falling.

본 발명은 상기한 문제점을 해결하기 위한 것으로, 실린더의 체결 변형을 방지하는 리니어 압축기의 토출 커버 체결 구조를 제공하는 것을 목적으로 한다.An object of the present invention is to provide a discharge cover fastening structure of a linear compressor that prevents fastening deformation of a cylinder.

또한 본 발명은 실린더의 체결 변형에 의한 압축기의 작동 불량을 방지하는 리니어 압축기의 토출 커버 체결 구조를 제공하는 것을 목적으로 한다.It is another object of the present invention to provide a discharge cover fastening structure of a linear compressor which prevents a malfunction of the compressor due to fastening deformation of a cylinder.

또한 본 발명은 실린더의 체결 변형에 의한 압축기의 효율 저하를 방지하는 리니어 압축기의 토출 커버 체결 구조를 제공하는 것을 목적으로 한다. In addition, an object of the present invention is to provide a discharge cover fastening structure of the linear compressor that prevents the compressor from being lowered by the fastening deformation of the cylinder.

본 발명은 상기한 목적을 위하여, 프레임; 프레임에 설치되는 실린더; 실린더의 일단에 위치되며, 프레임에 고정되는 토출 커버; 그리고, 프레임과 토출 커버를 고정하는 볼트;를 포함하는 리니어 압축기의 토출 커버 체결 구조에 있어서, 볼트는 머리부 및 머리부의 하면에 연장된 스크류부를 구비하며, 토출 커버는 볼트의 스크류부가 관통되는 홀을 구비하고, 홀은 홀 둘레의 일부가 볼트의 머리부와 접촉하지 않는 비접촉부를 구비하는 것을 특징으로 하는 리니어 압축기의 토출 커버 체결 구조를 제공한다.The present invention for the above object, the frame; A cylinder installed in the frame; A discharge cover positioned at one end of the cylinder and fixed to the frame; And, the discharge cover fastening structure of the linear compressor comprising a bolt for fixing the frame and the discharge cover, the bolt has a screw portion extending to the head and the lower surface of the head, the discharge cover is a hole through which the screw portion of the bolt through The hole provides a discharge cover fastening structure of the linear compressor, characterized in that a portion of the hole circumference has a non-contact portion that does not contact the head of the bolt.

또한 본 발명은 비접촉부가 홀에서 실린더와 가까운 쪽에 위치하는 것을 특징으로 하는 리니어 압축기의 토출 커버 체결 구조를 제공한다.In another aspect, the present invention provides a discharge cover fastening structure of the linear compressor, characterized in that the non-contact portion is located in the hole close to the cylinder.

또한 본 발명은 비접촉부가 홀의 둘레가 단차짐으로써 형성되는 것을 특징으로 하는 리니어 압축기의 토출 커버 체결 구조를 제공한다.In another aspect, the present invention provides a discharge cover fastening structure of the linear compressor, characterized in that the non-contact portion is formed by stepped around the hole.

이하에서, 본 발명에 따른 실시예를 첨부된 도면을 참조하여 상세히 설명한다. 그러나, 후술되는 상세한 설명 또는 도면에 의해 본 발명의 범위가 제한되지는 않으며, 오직 특허청구범위에 의해서만 제한된다.Hereinafter, with reference to the accompanying drawings an embodiment according to the present invention will be described in detail. However, the scope of the present invention is not limited by the detailed description or drawings described below, but only by the claims.

도 2는 본 발명에 따른 리니어 압축기의 토출 커버 체결 구조 단면의 일예를 나타내는 도면으로서, 리니어 압축기는 실린더(104)와, 피스톤(102)과, 토출 밸브 어셈블리(110)를 포함한다.2 is a view showing an example of a cross section of the discharge cover fastening structure of the linear compressor according to the present invention. The linear compressor includes a cylinder 104, a piston 102, and a discharge valve assembly 110.

실린더(104)는 프레임(103)에 설치되는데, 본 실시예에서 실린더(104)는 프레임(103)에 형성된 실린더홀(104h)에 압입되며, 실린더(104) 일측 외주면에 돌출 되어 형성된 걸림부(104A)가 프레임(103)일측에 걸림된다.The cylinder 104 is installed in the frame 103. In the present embodiment, the cylinder 104 is press-fitted into the cylinder hole 104h formed in the frame 103, and the engaging portion formed by protruding from the outer peripheral surface of one side of the cylinder 104 ( 104A is caught on one side of the frame 103.

피스톤(102)은 실린더(104) 내부에서 왕복 운동하며 실린더(104)와의 사이에서 압축공간(P)을 형성하고, 압축공간(P)에 유입되는 냉매를 압축한다. 이때, 토출 밸브 어셈블리(110)는 압축공간(P)에서 압축된 냉매가 토출되도록 압축공간(P)을 개폐하고, 토출공간(D)을 제공한다.The piston 102 reciprocates in the cylinder 104 to form a compression space P between the cylinder 104 and to compress the refrigerant flowing into the compression space P. At this time, the discharge valve assembly 110 opens and closes the compression space P to discharge the refrigerant compressed in the compression space P, and provides a discharge space (D).

토출 밸브 어셈블리(110)는 토출 커버(116,118)와, 토출 밸브(112)와, 토출 스프링(114)을 포함한다.The discharge valve assembly 110 includes a discharge cover 116 and 118, a discharge valve 112, and a discharge spring 114.

토출 커버(116)는 압축공간(P)에서 압축된 냉매가 토출되는 토출공간(D)이 형성되도록 실린더(104)의 일단 측에 위치한다. 본 실시예에서 토출 커버(116,118)는 피스톤(102)이 실린더(104) 내부에서 왕복 운동함에 따라 형성되는 압축공간(P) 측의 실린더(104) 일단에서 토출공간(D)이 형성되도록 프레임(103)에 볼트(B) 고정되어 설치된다. 이때, 토출 커버(116,118)는 2겹으로 이루어져 토출공간(D)을 형성하는데, 내부에 위치하는 토출커버(116)은 실린더(104)의 일측 외주면에 형성된 걸림부(104A)와 맞닿으며, 그로부터 연장되어 프레임(103)에 설치되고, 외부에 위치하는 토출 커버(118)는 내부에 위치하는 토출 커버(116)와 함께 프레임(103)에 설치된다. 본 실시예에서 토출 커버(116,118)에는 토출공간(D)에 저장된 냉매를 토출 커버(116,118) 외부로 유출하는 유출홀(116h,118h)이 형성되는데, 토출되는 냉매가 피스톤(102)의 왕복 운동에 따라 지니게 되는 맥동을 감소시키고, 냉매가 원활히 유출되도록 하기 위해 다수개가 토출 커버(116,118)에 형성되는 것이 바람직하다.The discharge cover 116 is positioned at one end of the cylinder 104 such that a discharge space D through which the refrigerant compressed in the compression space P is discharged is formed. In the present embodiment, the discharge covers 116 and 118 have a frame such that the discharge space D is formed at one end of the cylinder 104 on the side of the compression space P, which is formed as the piston 102 reciprocates in the cylinder 104. Bolt (B) is fixed to the 103 is installed. At this time, the discharge cover 116, 118 consists of two layers to form a discharge space (D), the discharge cover 116 is located in contact with the engaging portion (104A) formed on one outer peripheral surface of the cylinder 104, from The discharge cover 118 is extended and installed in the frame 103, and is disposed in the frame 103 together with the discharge cover 116 located inside. In the present embodiment, the discharge covers 116 and 118 are formed with outlet holes 116h and 118h for outflowing the refrigerant stored in the discharge space D to the outside of the discharge cover 116 and 118, and the discharged refrigerant reciprocates in the piston 102. In order to reduce the pulsation to be carried by, and to allow the refrigerant to flow out smoothly, it is preferable that a plurality is formed in the discharge cover (116, 118).

도 3은 본 발명에 따른 리니어 압축기의 토출 커버 체결 구조의 평면 및 단 면의 일예를 나타내는 도면으로서, 볼트(B)는 머리부(Ba) 및 머리부(Ba)의 하면에 연장된 스크류부(Bb)를 구비하고, 토출 커버(118)는 볼트(B)의 스크류부(Bb)가 관통되는 홀(119)을 구비한다. 본 실시예에서 홀(119)은 내부에 위치하는 토출 커버(116)와 외부에 위치하는 토출 커버(118) 모두에 형성된다. 이때, 외부에 위치하는 토출 커버(118)에 형성되는 홀(119)은 홀(119) 둘레의 일부가 볼트(B)의 머리부(Ba)와 접촉하지 않는 비접촉부(119A)를 구비하는데, 본 실시예에서 비접촉부(119A)는 홀(119)에서 실린더(104)에 가까운 쪽에 놓인다. 외부에 위치하는 토출 커버(118)의 홀(119)에서 비접촉부(119A)가 실린더(104)와 가까운 쪽에 놓임에 따라, 볼트(B)로 토출 커버(118)를 프레임(103)에 고정시킬 때, 비접촉부(119A)가 형성되지 않은 측의 토출 커버(116,118)에 힘이 작용하고 비접촉부(119A)가 형성된 측의 토출 커버(116,118)에는 힘이 작용하지 않게 된다. 이에 따라, 실리더(104)의 체결 변형을 방지하게 된다.3 is a view showing an example of the planar and cross-sectional surface of the discharge cover fastening structure of the linear compressor according to the present invention, the bolt (B) is a head (Ba) and a screw portion extending to the lower surface of the head (Ba) ( Bb), and the discharge cover 118 has a hole 119 through which the screw portion Bb of the bolt B passes. In this embodiment, the hole 119 is formed in both the discharge cover 116 located inside and the discharge cover 118 located outside. In this case, the hole 119 formed in the discharge cover 118 located outside includes a non-contact portion 119A in which part of the periphery of the hole 119 does not contact the head Ba of the bolt B. In this embodiment, the non-contact portion 119A is placed near the cylinder 104 in the hole 119. In the hole 119 of the discharge cover 118 located outside, the non-contact portion 119A is placed close to the cylinder 104, so that the discharge cover 118 can be fixed to the frame 103 with the bolt B. At this time, a force acts on the discharge covers 116 and 118 on the side where the non-contact portion 119A is not formed, and no force acts on the discharge covers 116 and 118 on the side where the non-contact portion 119A is formed. Accordingly, the fastening deformation of the cylinder 104 is prevented.

도 2에서, 토출 밸브(112)는 압축공간(P)을 개폐하도록 실린더(104)와 토출 커버(116) 사이에 위치한다. 본 실시예에서 토출 밸브(112)는 실린더(104)의 압축공간(P)이 형성되는 측의 일단에 위치하는데, 토출 스프링(114)에 의해서 실린더(104) 일단에 위치하도록 지지된다.2, the discharge valve 112 is located between the cylinder 104 and the discharge cover 116 to open and close the compression space (P). In the present embodiment, the discharge valve 112 is located at one end of the side where the compression space P of the cylinder 104 is formed, and is supported to be positioned at one end of the cylinder 104 by the discharge spring 114.

토출 스프링(114)은 토출 커버(116)에 대하여 토출 밸브(112)가 탄성 지지되도록 내부에 위치하는 토출 커버(116)에 구비된다. 본 실시예에서 토출 스프링(114)은 일단이 내부에 위치하는 토출 커버(116)에 지지되고, 타단이 토출 밸브(112)에 끼워진다. 본 실시예에서 토출 스프링(114)은 탄성 부재의 일종으로 본 실시예에서 사용되며, 토출 밸브(112)가 압축공간(P)을 개폐하도록 토출 밸브(112)에 탄성력을 제공하는 탄성 부재라면, 얼마든지 다른 것이 사용되어도 좋다.The discharge spring 114 is provided in the discharge cover 116 positioned therein so that the discharge valve 112 is elastically supported with respect to the discharge cover 116. In this embodiment, the discharge spring 114 is supported by the discharge cover 116, one end is located inside, the other end is fitted to the discharge valve 112. In the present embodiment, the discharge spring 114 is a type of elastic member and used in the present embodiment, and the discharge valve 112 is an elastic member that provides an elastic force to the discharge valve 112 to open and close the compression space P, Any number of other things may be used.

도 4는 본 발명에 따른 리니어 압축기의 토출 커버 체결 구조의 평면 및 단면의 다른예를 나타내는 도면으로서, 볼트(B)는 머리부(Ba) 및 머리부(Ba)의 하면에 연결된 스크류부(Bb)를 구비하고, 토출 커버(116,118)는 볼트(B)의 스크류부(Bb)가 관통되는 홀(119)을 구비한다. 본 실시예에서 홀(119)은 내부에 위치하는 토출 커버(116)와 외부에 위치하는 토출 커버(118) 모두에 형성된다. 이때, 외부에 위치하는 토출 커버(118)에 형성되는 홀(119)은 홀(119) 둘레의 일부가 볼트(B)의 머리부(Ba)와 접촉하지 않는 비접촉부(119A)를 구비하는데, 본 실시예에서 비접촉부(119A)는 홀(119)의 둘레가 단차짐으로써 형성된다. 외부에 위치하는 토출 커버(118)의 홀(119)의 둘레가 단차짐으로써 형성되는 비접촉부(119A)가 실린더와 가까운 쪽에 놓임에 따라, 볼트(B)가 토출 커버(116,118)를 프레임(103)에 고정시킬 때, 비접촉부(119A)가 형성되지 않은 측의 토출 커버(116,118)에 힘이 작용하고 비접촉부(119A)가 형성된 측의 토출 커버(116,118)에는 힘이 작용하지 않게 된다. 이에 따라, 실리더(104)의 체결 변형을 방지하게 된다.4 is a view showing another example of the planar and cross-section of the discharge cover fastening structure of the linear compressor according to the present invention, the bolt (B) is connected to the head (Ba) and the lower surface of the head (Ba) (Bb) ), And the discharge covers 116 and 118 have holes 119 through which the screw portion Bb of the bolt B passes. In this embodiment, the hole 119 is formed in both the discharge cover 116 located inside and the discharge cover 118 located outside. In this case, the hole 119 formed in the discharge cover 118 located outside includes a non-contact portion 119A in which part of the periphery of the hole 119 does not contact the head Ba of the bolt B. In this embodiment, the non-contact portion 119A is formed by stepping around the hole 119. As the non-contact portion 119A, which is formed by the step circumference of the hole 119 of the discharge cover 118 located outside, is placed close to the cylinder, the bolt B moves the discharge covers 116 and 118 to the frame 103. ), The force acts on the discharge covers 116 and 118 on the side where the non-contact portion 119A is not formed, and the force does not act on the discharge covers 116 and 118 on the side where the non-contact portion 119A is formed. Accordingly, the fastening deformation of the cylinder 104 is prevented.

이상에서 본 발명은 상술한 바와 같은 발명의 상세한 설명에 의해 한정되지 아니하며 본 발명의 기술분야에서 통상의 지식을 가진 자가 본 발명으로부터 용이하게 변형 또는 부가하여 실시할 수 있는 경우를 포함하며, 특허청구범위에 의해서만 한정된다.The present invention is not limited by the detailed description of the invention as described above, and includes a case that can be easily modified or added by those skilled in the art of the present invention, and claims It is only limited by the scope.

본 발명은 상기한 구성에 의하여, 실린더의 체결 변형을 방지하는 리니어 압축기의 토출 커버 체결 구조를 제공하는 효과가 있다.The present invention has the effect of providing the discharge cover fastening structure of the linear compressor to prevent the fastening deformation of the cylinder by the above-described configuration.

또한 본 발명은 실린더의 체결 변형에 의한 압축기의 작동 불량을 방지하는 리니어 압축기의 토출 커버 체결 구조를 제공하는 효과가 있다.In addition, the present invention has the effect of providing a discharge cover fastening structure of the linear compressor to prevent the malfunction of the compressor by the fastening deformation of the cylinder.

또한 본 발명은 실린더의 체결 변형에 의한 압축기의 효율 저하를 방지하는 리니어 압축기의 토출 커버 체결 구조를 제공하는 효과가 있다.In addition, the present invention has the effect of providing a discharge cover fastening structure of the linear compressor to prevent the compressor from being lowered by the fastening deformation of the cylinder.

Claims (3)

프레임; 프레임에 설치되는 실린더; 실린더의 일단에 위치되며, 프레임에 고정되는 토출 커버; 그리고, 프레임에 토출 커버를 고정하는 볼트;를 포함하는 리니어 압축기의 토출 커버 체결 구조에 있어서,frame; A cylinder installed in the frame; A discharge cover positioned at one end of the cylinder and fixed to the frame; And, in the discharge cover fastening structure of the linear compressor comprising a; bolt for fixing the discharge cover to the frame, 볼트는 머리부 및 머리부의 하면에 연장된 스크류부를 구비하며,The bolt has a head and a screw extending to the bottom of the head, 토출 커버는 볼트의 스크류부가 관통되는 홀을 구비하고, 홀은 홀 둘레의 일부가 볼트의 머리부와 접촉하지 않는 비접촉부를 구비하는 것을 특징으로 하는 리니어 압축기의 토출 커버 체결 구조.The discharge cover has a hole through which the screw portion of the bolt passes, and the hole has a non-contact portion in which part of the periphery of the hole does not contact the head of the bolt. 제 1 항에 있어서,The method of claim 1, 비접촉부는 홀에서 실린더와 가까운 쪽에 위치하는 것을 특징으로 하는 리니어 압축기의 토출 커버 체결 구조.Discharge cover fastening structure of a linear compressor, characterized in that the non-contact portion is located in the hole close to the cylinder. 제 1 항에 있어서,The method of claim 1, 비접촉부는 홀의 둘레가 단차짐으로써 형성되는 것을 특징으로 하는 리니어 압축기의 토출 커버 체결 구조.Discharge cover fastening structure of the linear compressor, characterized in that the non-contact portion is formed by the step of the periphery of the hole.
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