KR100548297B1 - Cylinder structure for reciprocating compressor - Google Patents

Cylinder structure for reciprocating compressor Download PDF

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KR100548297B1
KR100548297B1 KR1020030100727A KR20030100727A KR100548297B1 KR 100548297 B1 KR100548297 B1 KR 100548297B1 KR 1020030100727 A KR1020030100727 A KR 1020030100727A KR 20030100727 A KR20030100727 A KR 20030100727A KR 100548297 B1 KR100548297 B1 KR 100548297B1
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South Korea
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cylinder
reciprocating
piston
suction
refrigerant gas
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KR1020030100727A
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Korean (ko)
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KR20050068911A (en
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이종구
송계영
김정우
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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
    • 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
    • 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
    • F04B39/0016—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 with valve arranged in the piston
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0044—Pulsation and noise damping means with vibration damping supports
    • 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
    • F04B39/14—Provisions for readily assembling or disassembling
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • 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
    • F04B39/102—Adaptations or arrangements of distribution members the members being disc valves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

본 발명은 왕복동식 압축기의 실린더 구조에 관한 것으로, 본 발명은 프레임의 내부에 설치하여 가동자가 직선으로 왕복운동을 하는 왕복동모터와, 상기 프레임을 관통하여 고정 결합하고 상기 왕복동모터의 고정자를 삽입하는 실린더와, 냉매가스를 흡입하는 흡입유로를 구비하여 상기 왕복동모터의 가동자에 결합하고 상기 실린더에서 상하로 왕복운동을 하면서 냉매가스를 흡입 압축하는 피스톤과, 상기 피스톤의 흡입유로 끝에 설치하여 냉매가스의 흡입을 제한하는 흡입밸브와, 상기 실린더의 선단에 착탈 가능하게 결합하여 냉매가스의 토출을 제한하는 토출밸브와, 상기 피스톤의 전후 양측을 지지하여 상기 피스톤의 공진운동을 유도하는 복수 개의 공진스프링을 포함한 왕복동식 압축기에 있어서, 상기 실린더는 그 외주면에 수 개의 와전류차단슬릿을 형성함으로써, 압축기의 효율은 저하되지 않으면서도 실린더의 제작비용을 낮출 수 있어 전체적으로 압축기의 생산비용을 절감할 수 있다.The present invention relates to a cylinder structure of a reciprocating compressor. The present invention provides a reciprocating motor in which a mover is linearly reciprocated in a frame and fixedly penetrates through the frame and inserts a stator of the reciprocating motor. A piston having a cylinder and a suction flow path for sucking the refrigerant gas, which is coupled to the mover of the reciprocating motor and suction-compresses the refrigerant gas while reciprocating up and down in the cylinder, and installed at the end of the suction flow path of the piston, the refrigerant gas A suction valve that restricts suction of the gas, a discharge valve that is detachably coupled to the front end of the cylinder to limit the discharge of the refrigerant gas, and a plurality of resonance springs that support the front and rear sides of the piston to induce the resonant motion of the piston. In a reciprocating compressor comprising: the cylinder has several eddy currents on its outer peripheral surface By forming the single slit, the efficiency of the compressor can lower the manufacturing cost of the cylinder as a whole does not decrease even to reduce the production cost of the compressor.

Description

왕복동식 압축기의 실린더 구조{CYLINDER STRUCTURE FOR RECIPROCATING COMPRESSOR}CYLINDER STRUCTURE FOR RECIPROCATING COMPRESSOR}

도 1은 종래 왕복동식 압축기의 일례를 보인 단면도,1 is a cross-sectional view showing an example of a conventional reciprocating compressor,

도 2는 종래 왕복동식 압축기에서 실린더를 보인 사시도,Figure 2 is a perspective view of a cylinder in a conventional reciprocating compressor,

도 3은 본 발명 왕복동식 압축기의 일례를 보인 단면도,3 is a cross-sectional view showing an example of the reciprocating compressor of the present invention;

도 4는 본 발명 왕복동식 압축기에서 실린더를 보인 사시도.Figure 4 is a perspective view of a cylinder in the present invention reciprocating compressor.

** 도면의 주요 부분에 대한 부호의 설명 **** Description of symbols for the main parts of the drawing **

10 : 케이싱 20 : 프레임유니트10 casing 20 frame unit

30 : 왕복동모터 32 : 내측고정자30: reciprocating motor 32: inner stator

40 : 압축유니트 41 : 실린더40: compression unit 41: cylinder

41a : 플랜지부 41b : 윤활유통공41a: flange portion 41b: lubrication oil hole

41c : 와전류차단슬릿 42 : 피스톤41c: Eddy current blocking slit 42: Piston

43 : 흡입밸브 44 : 토출밸브43: suction valve 44: discharge valve

50 : 공진스프링유니트 60 : 지지스프링유니트50: resonant spring unit 60: support spring unit

본 발명은 왕복동식 압축기에 관한 것으로, 특히 실린더를 자성체와 같은 저렴한 재료를 사용하면서도 와전류(eddy current)를 줄일 수 있는 왕복동식 압축기의 실린더 구조에 관한 것이다.The present invention relates to a reciprocating compressor, and more particularly, to a cylinder structure of a reciprocating compressor that can reduce eddy current while using a cheap material such as a magnetic material.

일반적으로 왕복동식 압축기는 피스톤이 실린더의 내부에서 직선으로 왕복운동을 하면서 가스를 흡입 압축하여 토출하는 것으로, 도 1은 종래 왕복동식 압축기의 일례를 보인 단면도이다.In general, a reciprocating compressor is a piston that suctions and compresses and discharges gas while linearly reciprocating in a cylinder. FIG. 1 is a cross-sectional view illustrating an example of a conventional reciprocating compressor.

이에 도시한 바와 같이 종래의 왕복동식 압축기는, 가스흡입관(SP) 및 가스토출관(DP)을 연통 설치하는 케이싱(10)과, 케이싱(10)의 내부에 탄력적으로 설치하는 프레임유니트(20)와, 프레임유니트(20)에 고정하여 가동자(33)가 직선으로 왕복운동을 하는 왕복동모터(30)와, 왕복동모터(30)의 가동자(33)에 결합하여 상기한 프레임유니트(20)로 지지하는 압축유니트(40)와, 왕복동모터(30)의 가동자(33)를 운동방향으로 탄력 지지하여 공진운동을 유도하는 공진스프링유니트(50)와, 케이싱(10)과 프레임유니트(20) 사이를 지지하는 지지스프링유니트(60)를 포함하고 있다.As shown in the drawing, a conventional reciprocating compressor includes a casing 10 for communicating a gas suction pipe SP and a gas discharge pipe DP, and a frame unit 20 elastically installed in the casing 10. And the frame unit 20, which is fixed to the frame unit 20 and coupled to the mover 33 of the reciprocating motor 30 and the reciprocating motor 30 in which the mover 33 reciprocates in a straight line. A compression unit 40 for supporting the resonator, a resonant spring unit 50 for elastically supporting the mover 33 of the reciprocating motor 30 in the movement direction, and inducing a resonant motion, and a casing 10 and a frame unit 20. And a support spring unit 60 for supporting the space between the ends.

프레임유니트(20)는 압축유니트(40)를 지지하는 전방프레임(21)과, 전방프레임(21)에 결합하여 왕복동모터(30)의 전방측을 지지하는 중간프레임(22)과, 중간프레임(22)에 결합하여 왕복동모터(30)의 후방측을 지지하는 후방프레임(23)으로 이루어져 있다.The frame unit 20 includes a front frame 21 supporting the compression unit 40, an intermediate frame 22 coupled to the front frame 21 to support the front side of the reciprocating motor 30, and an intermediate frame ( 22 is coupled to the rear frame 23 for supporting the rear side of the reciprocating motor (30).

왕복동모터(30)는 전방프레임(21)과 중간프레임(22) 사이에 설치하는 외측고정자(31)와, 외측고정자(31)와 일정 간격을 두고 결합하여 전방프레임(21)에 삽입 고정하는 내측고정자(32)와, 외측고정자(31)와 내측고정자(32) 사이에 설치하여 직선으로 왕복운동을 하는 가동자(33)로 이루어져 있다.The reciprocating motor 30 has an outer stator 31 installed between the front frame 21 and the intermediate frame 22 and an inner stator coupled to the outer stator 31 at regular intervals and inserted into and fixed to the front frame 21. It consists of a stator 32, a movable part 33 provided between the outer stator 31 and the inner stator 32 to reciprocate in a straight line.

압축유니트(40)는 전방프레임(21)에 삽입하는 실린더(41)와, 왕복동모터(30)의 가동자(33)에 결합하여 실린더(41)의 압축실(P)에서 왕복운동을 하는 피스톤(42)과, 피스톤(42)의 선단에 장착하여 그 피스톤(42)의 흡입유로(F)를 개폐하면서 냉매가스의 흡입을 제한하는 흡입밸브(43)와, 실린더(41)의 토출측에 장착하여 압축실(P)을 개폐하면서 압축가스의 토출을 제한하는 토출밸브(44)와, 토출밸브(44)를 탄력적으로 지지하는 밸브스프링(45)과, 토출밸브(44)와 밸브스프링(45)을 수용하여 상기 실린더(41)의 토출측을 복개하는 토출커버(46)로 이루어져 있다.The compression unit 40 is coupled to the cylinder 41 inserted into the front frame 21 and the mover 33 of the reciprocating motor 30 to reciprocate in the compression chamber P of the cylinder 41. (42) and a suction valve (43) for restricting suction of refrigerant gas while opening and closing the suction flow path (F) of the piston (42) by attaching it to the tip of the piston (42) and the discharge side of the cylinder (41). Discharge valve 44 for restricting the discharge of compressed gas while opening and closing the compression chamber P, a valve spring 45 for elastically supporting the discharge valve 44, a discharge valve 44 and a valve spring 45. ) And a discharge cover 46 covering the discharge side of the cylinder 41.

실린더(41)는 비자성체를 평활관의 원통모양으로 형성하되, 그 전방측에는 전방프레임(21)에 걸려 삽입깊이를 제한하는 동시에 토출커버(46)에 의해 상기한 전방프레임(21)에 압착되는 플랜지부(41a)를 돌출 형성하고 있다. The cylinder 41 is formed of a non-magnetic material in a cylindrical shape of a smooth tube, the front side is caught by the front frame 21 to limit the insertion depth and is compressed to the front frame 21 by the discharge cover 46 at the same time. The flange portion 41a is formed to protrude.

공진스프링유니트(50)는 가동자(33)와 피스톤(42)의 연결부에 결합하는 스프링지지대(51)와, 스프링지지대(51)를 중심으로 그 전방측을 지지하는 전방측공진스프링(52)과, 스프링지지대(51)의 후방측을 지지하는 후방측공진스프링(53)으로 이루어져 있다.The resonant spring unit 50 includes a spring support 51 coupled to the connecting portion of the mover 33 and the piston 42, and a front side resonance spring 52 supporting the front side of the spring support 51. And, it consists of a rear side resonance spring (53) for supporting the rear side of the spring support (51).

도면중 미설명 부호인 41b는 윤활유통공, 61 및 62는 전방측 및 후방측 지지스프링, D는 토출실, LP는 루프파이프이다.In the figure, reference numeral 41b denotes a lubrication distribution hole, 61 and 62 are front and rear support springs, D is a discharge chamber, and LP is a loop pipe.

상기와 같은 종래 왕복동식 압축기는 다음과 같이 동작한다.The conventional reciprocating compressor as described above operates as follows.

즉, 왕복동모터(30)의 고정자에 전원을 인가하면 그 왕복동모터(30)의 가동자(33)가 고정자(31)(32)의 플럭스 방향에 따라 직선 왕복운동을 하고, 이 가동자(33)에 결합한 피스톤(42)이 실린더(41)의 내부에서 직선으로 왕복운동을 하면서 냉매가스를 피스톤(42)의 흡입유로(F)를 통해 실린더(41)의 압축실(P)로 흡입하며, 이 냉매가스는 피스톤(42)이 전진운동을 할 때 압축되었다가 토출밸브(44)를 밀고 토출커버(46)와 루프파이프(LP) 그리고 가스토출관(DP)을 통해 냉동사이클장치로 토출되는 일련의 과정을 반복하는 것이었다.That is, when power is applied to the stator of the reciprocating motor 30, the mover 33 of the reciprocating motor 30 performs linear reciprocating motion along the flux direction of the stators 31 and 32, and this mover 33 Piston 42 coupled to the suction of the refrigerant gas into the compression chamber (P) of the cylinder 41 through the suction flow path (F) of the piston 42, while reciprocating in a straight line inside the cylinder 41, The refrigerant gas is compressed when the piston 42 moves forward, pushes the discharge valve 44, and is discharged to the refrigeration cycle apparatus through the discharge cover 46, the loop pipe LP and the gas discharge pipe DP. It was a series of steps.

그러나, 상기와 같은 종래 왕복동식 압축기에 있어서는, 왕복동모터(30)에서 발생하는 플럭스가 실린더(41)로 전달되어 압축기 효율이 저하되는 것을 방지하기 위하여 상기 실린더(41)를 비자성체로 제작하고 있으나, 비자성체의 경우 가격이 비싸 압축기의 생산비용을 가중시키는 문제점이 있었다.However, in the conventional reciprocating compressor as described above, in order to prevent the flux generated from the reciprocating motor 30 is transferred to the cylinder 41 and the compressor efficiency is lowered, the cylinder 41 is made of nonmagnetic material. In the case of a nonmagnetic material, the price is high, and there is a problem of increasing the production cost of the compressor.

본 발명은 상기와 같은 종래 왕복동식 압축기가 가지는 문제점을 감안하여 안출한 것으로, 실린더를 값싼 자성체로 대체하면서도 와전류 손실을 최소화할 수 있는 왕복동식 압축기의 실린더 구조를 제공하려는데 본 발명의 목적이 있다.The present invention has been made in view of the above problems of the conventional reciprocating compressor, and it is an object of the present invention to provide a cylinder structure of a reciprocating compressor which can minimize eddy current loss while replacing a cylinder with a cheap magnetic material.

본 발명의 목적을 달성하기 위하여, 프레임의 내부에 설치하여 가동자가 직선으로 왕복운동을 하는 왕복동모터와, 상기 프레임을 관통하여 고정 결합하고 상기 왕복동모터의 고정자를 삽입하는 실린더와, 냉매가스를 흡입하는 흡입유로를 구비하여 상기 왕복동모터의 가동자에 결합하고 상기 실린더에서 상하로 왕복운동을 하면서 냉매가스를 흡입 압축하는 피스톤과, 상기 피스톤의 흡입유로 끝에 설치하여 냉매가스의 흡입을 제한하는 흡입밸브와, 상기 실린더의 선단에 착탈 가능하게 결합하여 냉매가스의 토출을 제한하는 토출밸브와, 상기 피스톤의 전후 양측을 지지하여 상기 피스톤의 공진운동을 유도하는 복수 개의 공진스프링을 포함한 왕복동식 압축기에 있어서, 상기 실린더는 그 외주면에 수 개의 와전류차단슬릿을 형성하는 것을 특징으로 하는 왕복동식 압축기의 실린더 구조를 제공한다.In order to achieve the object of the present invention, the reciprocating motor is installed inside the frame to reciprocate in a straight line, the cylinder fixedly penetrates through the frame and inserts the stator of the reciprocating motor, suction the refrigerant gas A suction passage which is coupled to the mover of the reciprocating motor and suctions and compresses the refrigerant gas while reciprocating up and down in the cylinder, and a suction valve installed at the end of the suction passage of the piston to restrict the suction of the refrigerant gas. And a discharge valve detachably coupled to the front end of the cylinder to limit the discharge of the refrigerant gas, and a plurality of resonant springs supporting both front and rear sides of the piston to induce the resonant movement of the piston. The cylinder forms several eddy current blocking slits on its outer circumferential surface. A cylinder structure of a reciprocating compressor is provided.

이하, 본 발명에 의한 왕복동식 압축기의 실린더 구조를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, the cylinder structure of the reciprocating compressor by this invention is demonstrated in detail based on one Example shown in an accompanying drawing.

도 3은 본 발명 왕복동식 압축기의 일례를 보인 단면도이고, 도 4는 본 발명 왕복동식 압축기에서 실린더를 보인 사시도이다.Figure 3 is a cross-sectional view showing an example of the reciprocating compressor of the present invention, Figure 4 is a perspective view showing a cylinder in the reciprocating compressor of the present invention.

이에 도시한 바와 같이 본 발명에 의한 왕복동식 압축기는, 가스흡입관(SP) 및 가스토출관(DP)을 연통 설치하는 케이싱(10)과, 케이싱(10)의 내부에 탄력적으로 설치하는 프레임유니트(20)와, 프레임유니트(20)의 전방프레임(21)과 중간프레임(22) 사이에 고정하는 외측고정자(31) 및 내측고정자(32) 그리고 두 고정자(31)(32) 사이에 배치하여 직선으로 왕복운동을 하는 가동자(33)로 이루어지는 왕복동모터(30)와, 왕복동모터(30)의 가동자(33)에 피스톤(42)을 결합하여 실린더(41)에서 직선으로 왕복운동을 하면서 냉매가스를 압축하도록 상기한 전방프레임(21)에 지지하는 압축유니트(40)와, 왕복동모터(30)의 가동자(33)를 운동방향으로 탄력 지지하여 공진운동을 유도하도록 중간프레임(22)과 후방프레임(23) 사이에 설치하는 공진스프링유니트(50)과, 케이싱(10)과 프레임유니트(20) 사이를 지지하는 지지스프링유니트(60)를 포함한다.As shown in the drawing, the reciprocating compressor according to the present invention includes a casing 10 for communicating the gas suction pipe SP and the gas discharge pipe DP, and a frame unit elastically installed in the casing 10. 20 and a straight line disposed between the outer stator 31 and the inner stator 32 and the two stators 31 and 32 fixed between the front frame 21 and the intermediate frame 22 of the frame unit 20. Reciprocating motor (30) consisting of a movable member (33) for reciprocating motion and a piston (42) coupled to the movable member (33) of the reciprocating motor (30) to reciprocate in a straight line in the cylinder (41). Compression unit 40 supporting the front frame 21 to compress the gas, and the intermediate frame 22 and the intermediate frame 22 so as to induce a resonant movement by elastically supporting the mover 33 of the reciprocating motor 30 in the movement direction Resonant spring unit 50, casing 10 and the frame provided between the rear frame (23) And a supporting spring unit (60) for supporting a cut between 20.

압축유니트(40)는 전방프레임(21)에 삽입하는 실린더(41)와, 왕복동모터(30)의 가동자(33)에 결합하여 실린더(41)의 압축실(P)에서 왕복운동을 하는 피스톤(42)과, 피스톤(42)의 선단에 장착하여 그 피스톤(42)의 흡입유로(F)를 개폐하면서 냉매가스의 흡입을 제한하는 흡입밸브(43)와, 실린더(41)의 토출측에 장착하여 압축실(P)을 개폐하면서 압축가스의 토출을 제한하는 토출밸브(44)와, 토출밸브(44)를 탄력적으로 지지하는 밸브스프링(45)과, 토출밸브(44)와 밸브스프링(45)을 수용하여 상기 실린더(41)의 토출측을 복개하고 상기한 가스토출관(DP)에 루프파이프(loop pipe)(LP)로 연결하는 토출커버(46)로 이루어진다.The compression unit 40 is coupled to the cylinder 41 inserted into the front frame 21 and the mover 33 of the reciprocating motor 30 to reciprocate in the compression chamber P of the cylinder 41. (42) and a suction valve (43) for restricting suction of refrigerant gas while opening and closing the suction flow path (F) of the piston (42) by attaching it to the tip of the piston (42) and the discharge side of the cylinder (41). Discharge valve 44 for restricting the discharge of compressed gas while opening and closing the compression chamber P, a valve spring 45 for elastically supporting the discharge valve 44, a discharge valve 44 and a valve spring 45. ) And a discharge cover 46 which covers the discharge side of the cylinder 41 and connects the gas discharge pipe DP to a loop pipe LP.

실린더(41)는 자성체를 원통모양으로 형성하되, 그 전방측에는 전방프레임(21)에 걸려 삽입깊이를 제한하는 동시에 토출커버(46)에 의해 상기한 전방프레임(21)에 압착되는 플랜지부(41a)를 돌출 형성한다.The cylinder 41 is formed of a magnetic body in a cylindrical shape, the front side of the flange portion (41a) is pressed to the front frame 21 by the discharge cover 46 at the same time limiting the insertion depth caught on the front frame 21 ) To protrude.

또, 실린더(41)의 외주면에는 도 4에서와 같이 원주방향을 따라 수 개의 와전류차단슬릿(41c)을 길이방향으로 길게, 즉 가동자(33)의 운동방향과 평행하게 형성하거나 또는 도면으로 도시하지는 않았지만 가동자(33)의 운동방향과 평행하게 수개씩 나눠 형성할 수도 있다. 이 와전류차단슬릿(41c)은 내측고정자(32)의 길이와 대략 동일하게 형성하는 것이 바람직하다.Further, on the outer circumferential surface of the cylinder 41, as shown in Fig. 4, several eddy current blocking slits 41c are elongated in the longitudinal direction, i.e., parallel to the direction of movement of the mover 33 or shown in the drawing. Although not, it may be formed by dividing several by parallel to the direction of movement of the mover (33). The eddy current blocking slit 41c is preferably formed to be substantially equal to the length of the inner stator 32.

또, 실린더(41)는 금형을 이용하여 주물로 제작하되, 상기한 와전류차단슬릿(41c)을 함께 형성하는 것이 생산비용을 절감하는데 바람직하다.In addition, the cylinder 41 is made of a casting using a mold, it is preferable to form the eddy current blocking slit 41c together to reduce the production cost.

도면중 종래와 동일한 부분에 대하여는 동일한 부호를 부여하였다.In the drawings, the same reference numerals are given to the same parts as in the prior art.

도면중 미설명 부호인 41b는 윤활유통공, 61 및 62는 전방측 및 후방측 지지스프링, D는 토출실, F는 흡입유로이다. In the figure, reference numeral 41b denotes a lubrication oil hole, 61 and 62 are front and rear support springs, D is a discharge chamber, and F is a suction passage.

상기와 같은 본 발명 왕복동식 압축기는 다음과 같은 작용 효과가 있다.The reciprocating compressor of the present invention as described above has the following effects.

즉, 왕복동모터(30)의 고정자(31)에 전원을 인가하면 그 왕복동모터(30)의 가동자(33)가 피스톤(3)과 함께 고정자(31)(32)의 플럭스 방향에 따라 직선 왕복운동을 하고, 이 가동자(33)에 결합한 피스톤(42)이 실린더(41)의 내부에서 직선으로 왕복운동을 하면서 흡입유로(F)를 통해 냉매가스를 실린더(41)의 압축실(P)로 흡입하여 압축하였다가 토출밸브(44)를 밀어내면서 토출커버(46)와 루프파이프(LP) 그리고 가스토출관(DP)을 통해 냉동사이클장치로 토출되는 일련의 과정을 반복한다.That is, when power is applied to the stator 31 of the reciprocating motor 30, the movable element 33 of the reciprocating motor 30 moves linearly together with the piston 3 along the flux direction of the stators 31 and 32. The piston 42 coupled to the mover 33 moves reciprocally in a straight line inside the cylinder 41, and coolant gas is passed through the suction flow path F to the compression chamber P of the cylinder 41. After suction and compression, the discharge valve 44 is pushed out, and a series of processes discharged to the refrigeration cycle apparatus through the discharge cover 46, the loop pipe LP, and the gas discharge pipe DP are repeated.

이때, 실린더(41)가 자성체로 형성됨에 따라 왕복동모터(30)에서 발생하는 플럭스가 이에 접하는 상기 실린더(41)로 누설되어 압축기 효율이 저하될 우려가 있으나, 실린더(41)의 외주면에 플럭스 방향으로 와전류차단슬릿(41c)을 형성함에 따라 상기한 플럭스가 실린더(41)로 누설되는 것을 차단하여 와전류 손실에 의한 압축기의 성능저하를 미연에 방지할 수 있다.At this time, as the cylinder 41 is formed of a magnetic material, flux generated in the reciprocating motor 30 may leak into the cylinder 41 in contact with the cylinder 41, thereby degrading compressor efficiency, but the flux direction may be formed on the outer circumferential surface of the cylinder 41. By forming the eddy current blocking slit 41c, the flux can be prevented from leaking to the cylinder 41, thereby preventing the performance degradation of the compressor due to the eddy current loss.

이렇게 하여, 실린더를 제작할 때 비교적 저렴한 자성체를 이용하면서도 와전류 손실을 방지할 수 있어 압축기의 생산비용을 절감할 수 있다.In this way, it is possible to prevent the eddy current loss while using a relatively inexpensive magnetic material when manufacturing the cylinder can reduce the production cost of the compressor.

본 발명에 의한 왕복동식 압축기의 실린더 구조는, 왕복동모터의 고정자에 삽입하는 실린더를 저렴한 자성체로 형성하되 이 실린더의 외주면에 와전류차단슬릿을 형성함으로써, 압축기의 효율은 저하되지 않으면서도 실린더의 제작비용을 낮출 수 있어 전체적으로 압축기의 생산비용을 절감할 수 있다.In the cylinder structure of the reciprocating compressor according to the present invention, the cylinder to be inserted into the stator of the reciprocating motor is formed of an inexpensive magnetic material, but the eddy current blocking slit is formed on the outer circumferential surface of the cylinder, so that the efficiency of the compressor is not reduced but the manufacturing cost of the cylinder is reduced. This can lower the overall production cost of the compressor.

Claims (3)

프레임의 내부에 설치하여 가동자가 직선으로 왕복운동을 하는 왕복동모터와, 상기 프레임을 관통하여 고정 결합하고 상기 왕복동모터의 고정자를 삽입하는 실린더와, 냉매가스를 흡입하는 흡입유로를 구비하여 상기 왕복동모터의 가동자에 결합하고 상기 실린더에서 상하로 왕복운동을 하면서 냉매가스를 흡입 압축하는 피스톤과, 상기 피스톤의 흡입유로 끝에 설치하여 냉매가스의 흡입을 제한하는 흡입밸브와, 상기 실린더의 선단에 착탈 가능하게 결합하여 냉매가스의 토출을 제한하는 토출밸브와, 상기 피스톤의 전후 양측을 지지하여 상기 피스톤의 공진운동을 유도하는 복수 개의 공진스프링을 포함한 왕복동식 압축기에 있어서,The reciprocating motor is provided with a reciprocating motor installed inside the frame to reciprocate in a straight line, a cylinder fixedly penetrating through the frame and inserting the stator of the reciprocating motor, and a suction flow path for sucking refrigerant gas. A piston which is coupled to an actuator of the cylinder and suctions and compresses refrigerant gas while reciprocating up and down in the cylinder, a suction valve installed at the end of the suction flow path of the piston to restrict the suction of refrigerant gas, and detachable at the tip of the cylinder. In the reciprocating compressor including a discharge valve for coupling to restrict the discharge of the refrigerant gas, and a plurality of resonant springs for supporting the front and rear sides of the piston to induce the resonant movement of the piston, 상기 실린더는 그 외주면에 수 개의 와전류차단슬릿을 형성하는 것을 특징으로 하는 왕복동식 압축기의 실린더 구조.The cylinder has a cylinder structure of a reciprocating compressor, characterized in that it forms several eddy current blocking slits on its outer circumferential surface. 제1항에 있어서,The method of claim 1, 상기 와전류차단슬릿은 상기 가동자의 운동방향과 평행하게 형성하는 것을 특징으로 하는 왕복동식 압축기의 실린더 구조.The eddy current blocking slit is a cylinder structure of a reciprocating compressor, characterized in that formed in parallel with the movement direction of the mover. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 실린더는 자성체인 것을 특징으로 하는 왕복동식 압축기의 실린더 구조.The cylinder structure of the reciprocating compressor, characterized in that the magnetic body.
KR1020030100727A 2003-12-30 2003-12-30 Cylinder structure for reciprocating compressor KR100548297B1 (en)

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