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KR100575827B1 - Device for reducing noise leakage of reciprocating compressor - Google Patents

Device for reducing noise leakage of reciprocating compressor Download PDF

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Publication number
KR100575827B1
KR100575827B1 KR1020030102303A KR20030102303A KR100575827B1 KR 100575827 B1 KR100575827 B1 KR 100575827B1 KR 1020030102303 A KR1020030102303 A KR 1020030102303A KR 20030102303 A KR20030102303 A KR 20030102303A KR 100575827 B1 KR100575827 B1 KR 100575827B1
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South Korea
Prior art keywords
piston
suction
cylinder
resonance
reciprocating
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KR1020030102303A
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Korean (ko)
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KR20050069821A (en
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강경석
이민우
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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
    • F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
    • F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
    • F04B39/042—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod sealing being provided on 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
    • 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
    • F04B39/0033—Pulsation and noise damping means with encapsulations
    • F04B39/0038—Pulsation and noise damping means with encapsulations of inlet or outlet channels
    • 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
    • F04B39/0027—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
    • F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

본 발명은 왕복동식 압축기의 소음누설 저감 장치에 관한 것으로, 본 발명은 케이싱의 내부에 탄력적으로 지지하여 설치하는 프레임; 상기 프레임에 고정자를 고정 설치하여 가동자가 직선으로 왕복운동을 하는 왕복동모터; 왕복동모터의 가동자에 결합하고 그 내부에 가스흡입관과 연통하도록 흡입유로를 형성하여 실린더의 내부에서 직선으로 왕복운동을 하면서 냉매가스를 압축하는 피스톤; 상기 피스톤의 흡입유로를 개폐하는 흡입밸브; 상기 실린더의 토출측을 개폐하는 토출밸브; 상기 피스톤을 운동방향으로 탄력 지지하여 공진운동을 유도하는 복수 개의 공진스프링; 상기 피스톤의 외곽에 고정 결합하여 냉매의 흡입시 발생하는 소음을 감쇄하는 공명통과, 그 공명통에 연통하도록 연장 형성하여 상기 피스톤의 흡입유로에 삽입하는 연장관으로 된 흡입머플러; 및 상기 피스톤의 외곽면과 그 피스톤의 외곽면에 대응하는 흡입머플러의 공명통 사이에 개재하여 상기 연장관의 외주면과 흡입유로의 내주면 사이로 누설되는 소음을 차단하는 실링부재;를 포함함으로써, 냉매가스의 흡입시 발생하는 흡입소음이 상기 피스톤과 흡입머플러 사이로 누설되는 것을 막아 압축기 소음을 크게 줄일 수 있다.The present invention relates to an apparatus for reducing noise leakage of a reciprocating compressor, and the present invention provides a frame that is elastically supported and installed in the casing; A reciprocating motor in which the stator is fixedly installed on the frame and the mover reciprocates in a straight line; A piston coupled to the mover of the reciprocating motor and having a suction passage formed therein so as to communicate with the gas suction pipe therein to compress the refrigerant gas while linearly reciprocating in the cylinder; A suction valve for opening and closing the suction flow path of the piston; A discharge valve for opening and closing the discharge side of the cylinder; A plurality of resonance springs which elastically support the piston in a movement direction to induce a resonance motion; A suction muffler fixedly coupled to the outer periphery of the piston to reduce noise generated when the refrigerant is sucked, and an extension tube extending to communicate with the resonance cylinder and inserted into the suction channel of the piston; And a sealing member interposed between the outer surface of the piston and the resonance cylinder of the suction muffler corresponding to the outer surface of the piston to block noise leaking between the outer circumferential surface of the extension pipe and the inner circumferential surface of the suction passage. It is possible to greatly reduce the compressor noise by preventing the suction noise generated at the time of leakage between the piston and the suction muffler.

Description

왕복동식 압축기의 소음누설 저감 장치{DEVICE FOR REDUCING NOISE LEAKAGE OF RECIPROCATING COMPRESSOR}Noise leakage reduction device of reciprocating compressor {DEVICE FOR REDUCING NOISE LEAKAGE OF 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 압축기의 요부를 보인 개략도,Figure 2 is a schematic diagram showing the main part of the 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 피스톤과 흡입머플러를 분해하여 보인 사시도,4 is an exploded perspective view showing a piston and a suction muffler in the present invention reciprocating compressor;

도 5는 본 발명 왕복동식 압축기에서 가스누설의 차단상태를 보인 개략도.Figure 5 is a schematic view showing a gas leakage state in the reciprocating compressor of the present invention.

** 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 40 : 압축유니트30: reciprocating motor 40: compression unit

42 : 피스톤 42a : 플랜지부42: piston 42a: flange

43 : 흡입밸브 60 : 흡입머플러43: suction valve 60: suction muffler

61 : 공명통 62 : 연장관61: resonance tube 62: extension tube

100 : 실링부재100: sealing member

본 발명은 왕복동식 압축기에 관한 것으로, 특히 피스톤과 흡입머플러 사이에 실링부재를 개재하여 흡입소음이 누설되는 것을 차단하는 왕복동식 압축기의 소음누설 저감 장치에 관한 것이다.The present invention relates to a reciprocating compressor, and more particularly, to an apparatus for reducing noise leakage of a reciprocating compressor which prevents leakage of suction noise through a sealing member between a piston and a suction muffler.

일반적으로 왕복동식 압축기는 피스톤이 실린더의 내부에서 직선으로 왕복운동을 하면서 가스를 흡입 압축하여 토출시키는 것으로, 도 1은 종래 왕복동식 압축기의 일례를 보인 종단면도이다.In general, a reciprocating compressor is a piston in a reciprocating motion in a straight line inside the cylinder to suck and compress the gas discharged, Figure 1 is a longitudinal cross-sectional view showing an example of a conventional reciprocating compressor.

이에 도시한 바와 같이 종래의 왕복동식 압축기는, 가스흡입관과 가스토출관을 연통하는 케이싱(10)과, 케이싱(10)의 내부에 탄력 지지하여 설치하는 프레임유니트(20)와, 프레임유니트(20)에 지지하여 가동자(33)가 직선으로 왕복운동을 하도록 케이싱(10)의 내부에 고정하는 왕복동모터(30)와, 왕복동모터(30)에 연결하여 프레임유니트(20)에 지지하는 압축유니트(40)와, 왕복동모터(30)를 탄력 지지하여 공진운동을 유도하는 공진스프링유니트(50)를 포함하고 있다.As shown in the drawing, a conventional reciprocating compressor includes a casing 10 for communicating a gas suction pipe and a gas discharge pipe, a frame unit 20 elastically supported inside the casing 10, and a frame unit 20. Reciprocating motor 30 fixed to the inside of the casing 10 so that the mover 33 reciprocates linearly, and a compression unit connected to the reciprocating motor 30 to support the frame unit 20. 40 and a resonant spring unit 50 for elastically supporting the reciprocating motor 30 to induce resonant motion.

프레임유니트(20)는 왕복동모터(30)의 일측과 압축유니트(40)를 함께 지지하는 전방프레임(21)과, 전방프레임(21)에 결합하여 왕복동모터(30)의 타측을 지지하는 중간프레임(22)과, 중간프레임(22)에 결합하여 후술할 후방측 공진스프링(53)을 지지하는 후방프레임(23)으로 이루어져 있다.The frame unit 20 includes a front frame 21 supporting one side of the reciprocating motor 30 and the compression unit 40 together, and an intermediate frame coupled to the front frame 21 to support the other side of the reciprocating motor 30. And a rear frame 23 coupled to the intermediate frame 22 to support the rear side resonance spring 53 to be described later.

왕복동모터(30)는 전방프레임(21)과 중간프레임(22) 사이에 고정 설치하는 외측고정자(31)와, 외측고정자(31)의 내측에 일정 공극을 두고 전방프레임(21)에 고정하는 내측고정자(32)와, 외측고정자(31)와 내측고정자(32) 사이의 공극(air gap)에 개재하여 압축유니트(40)의 피스톤(42)에 결합하고 그 피스톤(42)과 함께 직선으로 왕복운동을 하는 가동자(33)로 이루어져 있다.The reciprocating motor 30 has an outer stator 31 fixedly installed between the front frame 21 and the intermediate frame 22, and an inner side fixed with the front frame 21 with a predetermined gap inside the outer stator 31. Coupling to the piston 42 of the compression unit 40 via the air gap between the stator 32, the outer stator 31 and the inner stator 32 and reciprocating in a straight line with the piston 42 It consists of a mover 33 to exercise.

압축유니트(40)는 전방프레임(21)에 고정하는 실린더(41)와, 실린더(41)에 미끄러지게 삽입하고 왕복동모터(30)의 가동자(33)에 결합하여 직선으로 왕복운동을 하는 피스톤(42)과, 피스톤(42)의 선단면에 장착하여 흡입유로(F)를 개폐하는 흡입밸브(43)와, 실린더(41)의 토출측에 장착하여 압축공간(P)을 개폐하면서 압축가스의 토출을 제한하는 토출밸브(44)와, 토출밸브(44)를 탄력적으로 지지하는 밸브스프링(45)과, 토출밸브(44)와 밸브스프링(45)을 수용하여 상기한 실린더(41)의 토출측을 복개하는 토출커버(46)로 이루어져 있다.The compression unit 40 is a cylinder 41 fixed to the front frame 21, the piston is slidably inserted into the cylinder 41 and coupled to the mover 33 of the reciprocating motor 30 to reciprocate linearly. (42), a suction valve (43) attached to the front end surface of the piston (42) to open and close the suction flow path (F), and a discharge valve of the cylinder (41) to open and close the compressed space (P) while The discharge side of the cylinder 41 which accommodates the discharge valve 44 which restricts discharge, the valve spring 45 which elastically supports the discharge valve 44, and the discharge valve 44 and the valve spring 45 are accommodated. It consists of a discharge cover 46 to cover the.

공진스프링유니트(50)는 가동자(33)와 피스톤(42)의 연결부에 결합하는 스프링지지대(51)와, 스프링지지대(51)의 전후 양측에 배치하여 가동자(33)와 피스톤(42)을 탄력적으로 지지하도록 압축코일스프링으로 형성한 전방측 공진스프링(52)과 후방측 공진스프링(53)으로 이루어져 있다.The resonant spring unit 50 has a spring support 51 coupled to the connecting portion of the mover 33 and the piston 42, and is disposed on both front and rear sides of the spring support 51 to move the mover 33 and the piston 42. It consists of a front side resonance spring (52) and a rear side resonance spring (53) formed of a compression coil spring to support the elasticity.

삭제delete

흡입머플러(60)는 피스톤(42)의 후방면에 밀착 고정하고 대경부를 이루는 공명통(61)과, 공명통(61)의 일측에 연통하여 상기 피스톤(42)의 흡입유로(F)에 삽입되도록 소경부를 이루는 연장관(62)으로 이루어져 있다.The suction muffler 60 is tightly fixed to the rear surface of the piston 42 and communicates with one side of the resonance cylinder 61 forming a large diameter portion, and the small diameter so as to be inserted into the suction flow path F of the piston 42. Consists of an extension tube 62 forming a wealth.

도면중 미설명 부호인 LP는 루프파이프, D는 토출공간, P는 압축공간, S는 공명공간이다.In the drawings, reference numeral LP denotes a loop pipe, D denotes a discharge space, P denotes a compression space, and S denotes a resonance space.

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

즉, 왕복동모터(30)의 외측고정자(31)에 전원을 인가하면, 그 외측고정자(31)와 내측고정자(32) 사이에 플럭스가 형성되어 가동자(33)와 피스톤(42)이 함께 플럭스의 방향에 따라 상하로 움직이면서 공진스프링유니트(50)에 의해 직선으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(41)의 내부에서 상하로 왕복운동을 하면서 실린더(41)의 압축공간(P)에 압력차를 발생시킴으로써 냉매가스를 흡입하여 일정 압력까지 압축하였다가 토출시키는 일련의 과정을 반복한다.That is, when power is applied to the outer stator 31 of the reciprocating motor 30, a flux is formed between the outer stator 31 and the inner stator 32, and the movable element 33 and the piston 42 are fluxed together. While moving up and down along the direction of the reciprocating motion in a straight line by the resonant spring unit 50, with the piston 42 reciprocating up and down inside the cylinder 41, the compression space of the cylinder 41 ( By generating a pressure difference in P), a series of processes are repeated in which the refrigerant gas is sucked in, compressed to a predetermined pressure, and then discharged.

이때, 흡입밸브(43)가 개폐되면서 피스톤(42)과 충돌하여 밸브타음을 유발하나, 이러한 흡입소음은 흡입머플러(60)의 연장관(62)을 통해 공명통(61)으로 유입되면서 헬름홀쯔 효과(helmholtz's effective)에 의해 상쇄되는 것이었다.At this time, while the intake valve 43 is opened and closed, it collides with the piston 42 to induce a valve sound, but the intake noise is introduced into the resonance tube 61 through the extension pipe 62 of the suction muffler 60, and the Helmholtz effect ( It was offset by helmholtz's effective.

그러나, 상기와 같은 종래 왕복동식 압축기는, 도 2에서와 같이 피스톤(42)이나 흡입머플러(60)가 가공오차나 조립오차에 의해 미세 틈새(t)가 발생하는 경우 흡입밸브(43)의 개폐시 발생하는 밸브타음의 일부가 상기한 피스톤(42)과 흡입머플러(60) 사이의 틈새(t)를 통해 흡입머플러(60)의 외부로 누설되어 압축기 소음을 가중시킬 우려가 있었다.However, in the conventional reciprocating compressor as described above, as shown in FIG. 2, when the piston 42 or the suction muffler 60 generates a fine gap t due to a machining error or an assembly error, the suction valve 43 is opened and closed. Part of the valve sound generated during the leakage of the outside of the suction muffler (60) through the gap (t) between the piston 42 and the suction muffler (60), there is a fear that the compressor noise.

본 발명은 상기와 같은 종래 왕복동식 압축기가 가지는 문제점을 감안하여 안출한 것으로, 피스톤과 흡입머플러 사이의 틈새를 통해 흡입소음이 누설되는 것을 차단하여 압축기 소음을 줄일 수 있는 왕복동식 압축기의 소음누설 저감 장치를 제공하려는데 본 발명의 목적이 있다.The present invention has been made in view of the problems of the conventional reciprocating compressor as described above, to reduce the noise leakage of the reciprocating compressor that can reduce the compressor noise by preventing the leakage of suction noise through the gap between the piston and the suction muffler. It is an object of the present invention to provide a device.

본 발명의 목적을 달성하기 위하여, 케이싱의 내부에 탄력적으로 지지하여 설치하는 프레임; 상기 프레임에 고정자를 고정 설치하여 가동자가 직선으로 왕복운동을 하는 왕복동모터; 왕복동모터의 가동자에 결합하고 그 내부에 가스흡입관과 연통하도록 흡입유로를 형성하여 실린더의 내부에서 직선으로 왕복운동을 하면서 냉매가스를 압축하는 피스톤; 상기 피스톤의 흡입유로를 개폐하는 흡입밸브; 상기 실린더의 토출측을 개폐하는 토출밸브; 상기 피스톤을 운동방향으로 탄력 지지하여 공진운동을 유도하는 복수 개의 공진스프링; 상기 피스톤의 외곽에 고정 결합하여 냉매의 흡입시 발생하는 소음을 감쇄하는 공명통과, 그 공명통에 연통하도록 연장 형성하여 상기 피스톤의 흡입유로에 삽입하는 연장관으로 된 흡입머플러; 및 상기 피스톤의 외곽면과 그 피스톤의 외곽면에 대응하는 흡입머플러의 공명통 사이에 개재하여 상기 연장관의 외주면과 흡입유로의 내주면 사이로 누설되는 소음을 차단하는 실링부재;를 포함한 왕복동식 압축기의 소음누설 저감 장치를 제공한다.In order to achieve the object of the present invention, the frame is installed to support the elastically in the casing; A reciprocating motor in which the stator is fixedly installed on the frame and the mover reciprocates in a straight line; A piston coupled to the mover of the reciprocating motor and having a suction passage formed therein so as to communicate with the gas suction pipe therein to compress the refrigerant gas while linearly reciprocating in the cylinder; A suction valve for opening and closing the suction flow path of the piston; A discharge valve for opening and closing the discharge side of the cylinder; A plurality of resonance springs which elastically support the piston in a movement direction to induce a resonance motion; A suction muffler fixedly coupled to the outer periphery of the piston to reduce noise generated when the refrigerant is sucked, and an extension tube extending to communicate with the resonance cylinder and inserted into the suction channel of the piston; And a sealing member interposed between the outer surface of the piston and the resonance cylinder of the suction muffler corresponding to the outer surface of the piston to block noise leaking between the outer circumferential surface of the extension pipe and the inner circumferential surface of the suction flow passage. Provide an abatement device.

이하, 본 발명에 의한 왕복동식 압축기의 소음누설 저감 장치를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.Hereinafter, the noise leakage reduction device of the reciprocating compressor according to the present invention will be described in detail based on the embodiment shown in the accompanying drawings.

도 3은 본 발명 왕복동식 압축기의 일례를 보인 단면도이고, 도 4는 본 발명 왕복동식 압축기에서 피스톤과 흡입머플러를 분해하여 보인 사시도이며, 도 5는 본 발명 왕복동식 압축기에서 가스누설의 차단상태를 보인 개략도이다.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 the piston and the suction muffler in the reciprocating compressor of the present invention, Figure 5 is a cutoff state of the gas leakage in the reciprocating compressor of the present invention Schematic diagram shown.

이에 도시한 바와 같이 본 발명의 왕복동식 압축기는, 케이싱(10)의 내부에 전방프레임(21)과 중간프레임(22) 그리고 후방프레임(23)을 서로 연결하여 탄력적으로 지지 설치하고, 전방프레임(21)과 중간프레임(22)의 사이에는 외측고정자(31)와 내측고정자(32) 그리고 두 고정자(31)(32) 사이에서 직선으로 왕복운동을 하는 가동자(33)로 된 왕복동모터(30)를 설치하며, 왕복동모터(30)의 내측고정자(32) 안쪽에는 전방프레임(21)에 고정하는 실린더(41)와 그 실린더(41)에 미끄러지게 삽입하여 왕복동모터(30)의 가동자(33)와 함께 직선으로 왕복운동을 하는 피스톤(42) 그리고 그 피스톤(42)의 흡입유로(F)를 개폐하는 흡입밸브(43)와 실린더(41)의 토출측을 개폐하는 토출밸브(44)를 설치하고, 중간프레임(22)과 후방프레임(23)의 사이에는 상기 왕복동모터(30)의 가동자(33)와 피스톤(42)을 탄력적으로 지지하여 공진운동을 유도하도록 전방측 공진스프링(52)과 후방측 공진스프링(53)을 설치하여 구성한다.As shown in the present invention, the reciprocating compressor of the present invention is connected to the front frame 21, the intermediate frame 22 and the rear frame 23 to each other in the casing 10, and elastically supported and installed, the front frame ( Between the 21 and the intermediate frame 22, a reciprocating motor 30 made of an outer stator 31, an inner stator 32, and a mover 33 which linearly reciprocates between two stators 31 and 32. And a cylinder 41 fixed to the front frame 21 inside the inner stator 32 of the reciprocating motor 30 and slipperably inserted into the cylinder 41 to move the movable element of the reciprocating motor 30. 33, the piston 42 reciprocating in a straight line, the suction valve 43 for opening and closing the suction flow path F of the piston 42, and the discharge valve 44 for opening and closing the discharge side of the cylinder 41. And between the intermediate frame (22) and the rear frame (23) and the mover (33) of the reciprocating motor (30). To the resilient support in the tone (42) leading to the resonance motion is configured by installing the front resonance springs 52 and the rear resonance springs 53.

또, 피스톤(42)의 후방면에는 상기 가스흡입관(SP)을 통해 흡입되는 냉매가스를 흡입유로(F)로 직접 안내하는 동시에 냉매가스의 흡입시 발생하는 밸브타음을 상쇄시키는 흡입머플러(60)를 고정 설치한다.In addition, a suction muffler (60) directs the refrigerant gas sucked through the gas suction pipe (SP) directly to the suction flow path (F) on the rear surface of the piston (42) and at the same time offsets the valve sound generated when the refrigerant gas is sucked. Install it securely.

피스톤(42)은 원통모양으로 형성하되 그 후방단에는 상기한 왕복동모터(30)의 가동자(33)와 공진스프링유니트(50)의 스프링지지대(51)를 체결하도록 플랜지부(42a)를 환형으로 형성하고, 이 피스톤(42)의 플랜지부(42a)에 흡입머플러(60)의 공명통(61)을 밀착하여 고정한다.Piston 42 is formed in a cylindrical shape, the rear end of the flange portion (42a) to engage the spring support 51 of the resonator spring unit 50 and the mover 33 of the reciprocating motor (30). The resonance cylinder 61 of the suction muffler 60 is brought into close contact with and fixed to the flange portion 42a of the piston 42.

흡입머플러(60)는 대경부를 이루고 그 일측면이 상기한 피스톤(42)의 플랜지부(42a)에 밀착하여 고정하는 공명통(61)과, 공명통(61)의 일측에 연통하도록 연장 하여 상기한 피스톤(42)의 흡입유로(F)에 소정의 깊이로 삽입하는 연장관(62)으로 이루어진다.The suction muffler 60 has a large diameter portion and one side thereof extends so as to communicate with one side of the resonance cylinder 61 and a resonance cylinder 61 in close contact with the flange portion 42a of the piston 42. It consists of the extension pipe 62 which inserts into the suction flow path F of 42 to a predetermined depth.

여기서, 피스톤(42)의 플랜지부(42a)와 이에 접하는 흡입머플러(60)의 공명통(61) 외측면 사이에는 상기 피스톤(42)의 흡입유로(F)와 흡입머플러(60)의 연장관(62) 사이로 누설되는 소음을 차단하도록 환형으로 형성하여 압착되는 실링부재(100)를 개재한다.Here, between the flange portion 42a of the piston 42 and the outer surface of the resonance cylinder 61 of the suction muffler 60 in contact therewith, the suction flow path F of the piston 42 and the extension pipe 62 of the suction muffler 60. Interposed between the sealing member 100 is formed in an annular shape so as to block the noise leaking between).

실링부재(100)는 피스톤(42)과 흡입머플러(60)의 체결시 압착되면서 긴밀하게 실링할 수 있도록 고무나 가죽과 같은 탄성을 지닌 재질로 형성하는 것이 바람직하다. The sealing member 100 is preferably formed of a material having elasticity such as rubber or leather so as to be tightly sealed while being compressed when the piston 42 and the suction muffler 60 are fastened.

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 45는 밸브스프링, 46은 토출커버, LP는 루프파이프, D는 토출공간, P는 압축공간이다. In the drawings, reference numeral 45 denotes a valve spring, 46 a discharge cover, LP a loop pipe, D a discharge space, and P a compression space.

상기와 같은 본 발명 왕복동식 압축기의 흡입 안내 장치가 가지는 작용 효과는 다음과 같다.Effects of the suction guide device of the reciprocating compressor of the present invention as described above are as follows.

즉, 왕복동모터(30)의 외측고정자(31)에 전원을 인가하면, 그 외측고정자(31)와 내측고정자(32) 사이에 플럭스가 형성되어 가동자(33)와 피스톤(42)이 함께 플럭스의 방향에 따라 상하로 움직이면서 공진스프링유니트(50)에 의해 직선으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(41)의 내부에서 상하로 왕복운동을 하면서 실린더(41)의 압축공간(P)에 압력차를 발생시킴으로 써 냉매가스를 흡입하여 일정 압력까지 압축하였다가 토출밸브(44)를 열어 토출커버(46)의 토출공간(D)으로 토출시키며, 이 냉매가스는 토출공간(D)을 거쳐 가스토출관(DP)을 통해 냉동사이클장치의 응축기로 다시 토출되는 일련의 과정을 반복한다.That is, when power is applied to the outer stator 31 of the reciprocating motor 30, a flux is formed between the outer stator 31 and the inner stator 32, and the movable element 33 and the piston 42 are fluxed together. While moving up and down along the direction of the reciprocating motion in a straight line by the resonant spring unit 50, with the piston 42 reciprocating up and down inside the cylinder 41, the compression space of the cylinder 41 ( By generating a pressure difference in P), the refrigerant gas is sucked and compressed to a predetermined pressure, and then the discharge valve 44 is opened to discharge into the discharge space D of the discharge cover 46, and the refrigerant gas is discharge space D. Repeat a series of processes to be discharged back to the condenser of the refrigeration cycle apparatus through the gas discharge pipe (DP) through the).

여기서, 흡입밸브(43)는 피스톤(42)의 왕복운동시 휘어졌다가 펴졌다가 하면서 흡입유로(F)를 개폐하게 되는데, 이 과정에서 흡입밸브(43)가 피스톤(42)의 선단면과 충돌하면서 밸브타음을 유발하고 이 밸브타음은 피스톤(42)의 흡입유로(F)를 통해 흡입머플러(60)의 연장관(62)과 공명통(61)으로 유입되어 상쇄되는 한편 일부의 밸브타음은 연장관(62)과 피스톤(42)의 흡입유로(F) 사이로 흘러나가다가 실링부재(100)에 막혀 다시 역류하여 상기한 흡입머플러(60)에서 상쇄된다.Here, the suction valve 43 opens and closes the suction flow path F while being bent and expanded during the reciprocating motion of the piston 42. In this process, the suction valve 43 is connected to the front end face of the piston 42. Collision causes the valve sound and the valve sound is introduced into the extension pipe 62 and the resonance tube 61 of the suction muffler 60 through the suction flow path (F) of the piston 42 and offset, while some of the valve sound is extended pipe It flows out between the suction flow path F of the 62 and the piston 42, is blocked by the sealing member 100, and flows back and is canceled by the suction muffler 60 mentioned above.

이렇게 하여, 냉매가스의 흡입시 흡입밸브와 피스톤의 선단면 사이에서 흡입밸브가 충돌하면서 발생하는 밸브타음이 외부로 누설되지 않고 흡입머플러에서 상쇄되어 압축기 소음을 크게 줄일 수 있다.In this way, the valve noise generated when the suction valve collides between the suction valve and the front end surface of the piston during suction of the refrigerant gas is canceled by the suction muffler without leakage to the outside, thereby greatly reducing the compressor noise.

본 발명에 의한 왕복동식 압축기의 소음누설 저감 장치는, 피스톤과 흡입머플러 사이의 접촉면에 실링부재를 개재함으로써, 냉매가스의 흡입시 발생하는 흡입소음이 상기 피스톤과 흡입머플러 사이로 누설되는 것을 막아 압축기 소음을 크게 줄일 수 있다.The noise leakage reducing device of the reciprocating compressor according to the present invention includes a sealing member on the contact surface between the piston and the suction muffler, thereby preventing the suction noise generated when the refrigerant gas is sucked in between the piston and the suction muffler, thereby preventing the compressor noise. Can be greatly reduced.

Claims (3)

케이싱의 내부에 탄력적으로 지지하여 설치하는 프레임; A frame for elastically supporting and installing in the casing; 상기 프레임에 고정자를 고정 설치하여 가동자가 직선으로 왕복운동을 하는 왕복동모터; A reciprocating motor in which the stator is fixedly installed on the frame and the mover reciprocates in a straight line; 왕복동모터의 가동자에 결합하고 그 내부에 가스흡입관과 연통하도록 흡입유로를 형성하여 실린더의 내부에서 직선으로 왕복운동을 하면서 냉매가스를 압축하는 피스톤;A piston coupled to the mover of the reciprocating motor and having a suction passage formed therein so as to communicate with the gas suction pipe therein to compress the refrigerant gas while linearly reciprocating in the cylinder; 상기 피스톤의 흡입유로를 개폐하는 흡입밸브;A suction valve for opening and closing the suction flow path of the piston; 상기 실린더의 토출측을 개폐하는 토출밸브;A discharge valve for opening and closing the discharge side of the cylinder; 상기 피스톤을 운동방향으로 탄력 지지하여 공진운동을 유도하는 복수 개의 공진스프링;A plurality of resonance springs which elastically support the piston in a movement direction to induce a resonance motion; 상기 피스톤의 외곽에 고정 결합하여 냉매의 흡입시 발생하는 소음을 감쇄하는 공명통과, 그 공명통에 연통하도록 연장 형성하여 상기 피스톤의 흡입유로에 삽입하는 연장관으로 된 흡입머플러; 및 A suction muffler fixedly coupled to the outer periphery of the piston to reduce noise generated when the refrigerant is sucked, and an extension tube extending to communicate with the resonance cylinder and inserted into the suction channel of the piston; And 상기 피스톤의 외곽면과 그 피스톤의 외곽면에 대응하는 흡입머플러의 공명통 사이에 개재하여 상기 연장관의 외주면과 흡입유로의 내주면 사이로 누설되는 소음을 차단하는 실링부재;를 포함한 왕복동식 압축기의 소음누설 저감 장치.Noise leakage of the reciprocating compressor including; sealing member for intercepting the leakage between the outer circumferential surface of the extension pipe and the inner circumferential surface of the suction flow path between the outer surface of the piston and the resonance cylinder of the suction muffler corresponding to the outer surface of the piston; Device. 삭제delete 제2항에 있어서,The method of claim 2, 상기 실링부재는 가압시 일정정도 압착될 수 있도록 탄성재로 형성하는 것을 특징으로 하는 왕복동식 압축기의 소음누설 저감 장치.The sealing member is noise leakage reduction device of the reciprocating compressor, characterized in that formed with an elastic material to be compressed to a certain degree when pressed.
KR1020030102303A 2003-12-31 2003-12-31 Device for reducing noise leakage of reciprocating compressor KR100575827B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100783233B1 (en) 2007-01-02 2007-12-06 엘지전자 주식회사 Reciprocating compressor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990057037A (en) * 1997-12-29 1999-07-15 구자홍 Silencer Structure of Compressor
KR20010018433A (en) * 1999-08-19 2001-03-05 구자홍 Structure for reducing suction-noise of linear compressor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990057037A (en) * 1997-12-29 1999-07-15 구자홍 Silencer Structure of Compressor
KR20010018433A (en) * 1999-08-19 2001-03-05 구자홍 Structure for reducing suction-noise of linear compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100783233B1 (en) 2007-01-02 2007-12-06 엘지전자 주식회사 Reciprocating compressor

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