KR20030083241A - Device for reducing noise of reciprocating compressor - Google Patents

Device for reducing noise of reciprocating compressor Download PDF

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Publication number
KR20030083241A
KR20030083241A KR1020020021689A KR20020021689A KR20030083241A KR 20030083241 A KR20030083241 A KR 20030083241A KR 1020020021689 A KR1020020021689 A KR 1020020021689A KR 20020021689 A KR20020021689 A KR 20020021689A KR 20030083241 A KR20030083241 A KR 20030083241A
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KR
South Korea
Prior art keywords
lubricating oil
lubricant
unit
discharge
casing
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KR1020020021689A
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Korean (ko)
Inventor
김진동
노기원
정충민
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엘지전자 주식회사
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Priority to KR1020020021689A priority Critical patent/KR20030083241A/en
Publication of KR20030083241A publication Critical patent/KR20030083241A/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
    • F04B39/0027—Pulsation and noise damping means
    • 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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0238—Hermetic compressors with oil distribution 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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0261—Hermetic compressors with an auxiliary oil pump
    • 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

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

Abstract

PURPOSE: An apparatus for reducing noise of a reciprocating compressor is provided to reduce noise due to lubricant colliding against a casing. CONSTITUTION: A lubricant supply unit(160) comprises a lubricant pumping part(161) vibrating together with a frame unit(120) to pump lubricant in a casing(110); a lubricant supply channel(162) connected with the lubricant pumping part, and formed on the frame unit to supply a sliding part of a compression unit(140) with lubricant; and a lubricant buffering part(170) formed on an outlet of the lubricant supply channel, and having an expansion space to buff discharge pressure of lubricant having passed the sliding part of the compression unit. The lubricant buffering part comprises a buffering groove concavely formed larger than a diameter of a lubricant discharge hole(162C); a cover part covering the buffering groove to form the expansion space; and an oil outlet formed on a front frame(121) to be placed on an upper part of the buffering groove to discharge lubricant collected in the buffering groove. Lubricant having passed the compression unit is collected in the buffering groove and then discharged through the oil outlet to reduce discharge pressure thereof.

Description

왕복동식 압축기의 소음 저감 장치{DEVICE FOR REDUCING NOISE OF RECIPROCATING COMPRESSOR}Noise Reduction Device for Reciprocating Compressor {DEVICE FOR REDUCING NOISE OF RECIPROCATING COMPRESSOR}

본 발명은 왕복동식 압축기에서 피스톤의 왕복운동을 윤활하는 윤활유 공급 장치에 관한 것으로, 특히 피스톤을 윤활하고 난 윤활유를 케이싱으로 회수할 때 윤활유가 케이싱에 튀겨 내는 소음을 줄인 왕복동식 압축기의 소음 저감 장치에 관한 것이다.The present invention relates to a lubricating oil supply device for lubricating a piston's reciprocating motion in a reciprocating compressor, and in particular, to reduce the noise of the lubricating oil splashing on the casing when recovering the lubricating oil after lubricating the piston. It is about.

일반적으로 왕복동식 압축기는 피스톤이 선형으로 움직이면서 가스를 흡입 압축하는 것으로, 이러한 왕복동식 압축기는 크게 구동모터의 회전운동을 피스톤의 왕복운동으로 전환시켜 가스를 흡입 압축하는 방식과 구동모터가 직선으로 왕복운동을 하면서 피스톤을 왕복운동시켜 가스를 흡입 압축하는 방식이 있다.In general, a reciprocating compressor sucks and compresses gas while the piston moves linearly. Such a reciprocating compressor converts the rotational motion of the drive motor into a reciprocating motion of the piston and sucks and compresses the gas. There is a way to inhale and compress the gas by reciprocating the piston during the movement.

도 1은 후자에 속하는 종래 왕복동식 압축기의 일례를 보인 종단면도로서, 이에 도시한 바와 같이 종래의 왕복동식 압축기는 저면에 일정량의 윤활유를 채우고 가스흡입관(SP) 및 가스토출관(DP)을 연통 설치하는 케이싱(10)과, 케이싱(10)의 내부에 탄력적으로 설치하는 프레임 유니트(20)와, 프레임 유니트(20)에 고정하여 가동자(33)가 직선으로 왕복운동을 하는 왕복동식 모터(30)와, 왕복동식 모터(30)의 가동자(33)에 결합하여 상기한 프레임 유니트(20)로 지지하는 압축유니트(40)와, 왕복동식 모터(30)의 가동자(33)를 운동방향으로 탄력 지지하여 공진운동을 유도하는 공진스프링 유니트(50)와, 프레임 유니트(20)에 장착하여 케이싱(10)의 윤활유를 압축 유니트(40)의 미끄럼부로 공급하는 윤활유 공급 유니트(60)로 구성하고 있다.1 is a longitudinal sectional view showing an example of a conventional reciprocating compressor belonging to the latter, as shown in the conventional reciprocating compressor is filled with a certain amount of lubricating oil on the bottom surface and the gas suction pipe (SP) and gas discharge pipe (DP) communication; A casing 10 to be installed, a frame unit 20 elastically installed in the casing 10, and a reciprocating motor in which the mover 33 reciprocates linearly by being fixed to the frame unit 20 ( 30, a compression unit 40 coupled to the mover 33 of the reciprocating motor 30 and supported by the frame unit 20, and the mover 33 of the reciprocating motor 30. To a resonant spring unit 50 that elastically supports in a direction to induce a resonant motion, and a lubricant oil supply unit 60 that is mounted to the frame unit 20 to supply lubricant of the casing 10 to the sliding portion of the compression unit 40. It consists.

프레임 유니트(20)는 압축 유니트(40)를 지지하는 전방프레임(21)과, 전방프레임(21)에 결합하여 왕복동식 모터(30)의 전방측을 지지하는 중간프레임(22)과, 중간프레임(22)에 결합하여 왕복동식 모터(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. It is composed of a rear frame 23 coupled to the 22 to support the rear side of the reciprocating motor 30.

왕복동식 모터(30)는 중간프레임(22)과 후방프레임(23) 사이에 설치하는 외측고정자(31)와, 외측고정자(31)와 일정 간격을 두고 결합하여 후방프레임(21)에 삽입 결합하는 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 intermediate frame 22 and the rear frame 23 and the outer stator 31 at regular intervals to insert and couple to the rear frame 21. The inner stator 32, the outer stator 31 and the inner stator 32 is provided between the movable member 33 to reciprocate in a straight line.

압축 유니트(40)는 전방프레임(21)에 일체로 형성하는 실린더(41)와, 왕복동식 모터(30)의 가동자(33)에 결합하여 실린더(41)의 압축공간(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 압축공간(P)을 개폐하면서 압축가스의 토출을 제한하는 토출밸브 조립체(44)로 이루어져 있다.The compression unit 40 is coupled to the cylinder 41 formed integrally with the front frame 21 and the mover 33 of the reciprocating motor 30 to reciprocate in the compression space P of the cylinder 41. Piston 42 and the suction valve 43 which restricts suction of refrigerant gas while opening and closing the suction flow path F of the piston 42 and the cylinder 41. It is composed of a discharge valve assembly 44 mounted on the discharge side to limit the discharge of the compressed gas while opening and closing the compression space (P).

공진스프링 유니트(50)는 가동자(33)와 피스톤(42)의 연결부에 결합하는 스프링 지지대(51)와, 스프링 지지대(51)를 중심으로 전방측을 지지하는 전방측 공진스프링(52)과, 스프링 지지대(51)의 후방측을 지지하는 후방측 공진스프링(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 resonant spring (52) for supporting the front side around the spring support (51); , The rear side resonant spring 53 supporting the rear side of the spring support 51.

윤활유 공급 유니트(60)는 프레임 유니트(20)의 하반부에 장착하여 그 프레임 유니트(40)와 함께 진동하면서 케이싱(10)의 윤활유를 펌핑하는 윤활유 펌핑부(61)와, 윤활유 펌핑부(61)의 출구측과 압축 유니트(40)를 연통하도록 상기한 프레임 유니트(20)에 형성하는 윤활유 공급유로(62)로 이루어져 있다.The lubricating oil supply unit 60 is mounted on the lower half of the frame unit 20 and vibrates with the frame unit 40 to pump the lubricating oil of the casing 10 and the lubricating oil pumping unit 61. It consists of a lubricating oil supply passage 62 formed in the frame unit 20 so as to communicate the outlet side and the compression unit 40.

윤활유 펌핑부(61)는 도 2에서와 같이 전방프레임(21)의 하반부에 장착하는 윤활유 실린더(61A)와, 윤활유 실린더(61A)의 전후 양측에 장착하는 윤활유 흡입덮개(61B) 및 윤활유 토출덮개(61C)와, 윤활유 실린더(61A)의 내부에 미끄러지게 삽입하여 윤활유를 펌핑하는 윤활유 피스톤(61D)과, 윤활유 피스톤(61D)의 양단을 탄력 지지하는 윤활유 스프링(61E)(61E)들과, 윤활유 피스톤(61D)과 윤활유 스프링(61E) 사이에 장착하여 윤활유의 흡입을 제한하는 윤활유 흡입밸브(61F)와, 전방프레임(21)과 윤활유 토출덮개(61C) 사이에 장착하여 윤활유의 토출을 제한하는 윤활유 토출밸브(61G)로 이루어져 있다.The lubricating oil pumping part 61 includes a lubricating oil cylinder 61A mounted on the lower half of the front frame 21 as shown in FIG. 2, and a lubricating oil suction cover 61B and a lubricating oil discharge cover mounted on both front and rear sides of the lubricating oil cylinder 61A. 61C, lubricating oil piston 61D which slides into the lubricating oil cylinder 61A to pump lubricating oil, lubricating oil springs 61E and 61E which elastically support both ends of the lubricating oil piston 61D, It is mounted between the lubricant piston 61D and the lubricant spring 61E to restrict the suction of the lubricant, and is mounted between the front frame 21 and the lubricant discharge cover 61C to restrict the discharge of the lubricant. It consists of a lubricating oil discharge valve 61G.

윤활유 공급유로(62)는 전방프레임(21)과 윤활유 토출덮개(61C) 사이에서 실린더(41)의 하측 내주면으로 관통 형성하는 윤활유흡입구멍(62A)과, 윤활유흡입구멍(62A)에 연통하여 피스톤(42)의 외주면을 따라 음각지게 형성하는 윤활유포켓(62B)과, 윤활유포켓(62B)에 연통하여 실린더(41)의 상측 내주면에서 전방프레임(21)의 상반부로 관통 형성하는 윤활유토출구멍(62C)으로 이루어져 있다.The lubricating oil supply passage 62 communicates with the lubricating oil suction hole 62A formed through the front frame 21 and the lubricating oil discharge cover 61C to the lower inner circumferential surface of the cylinder 41, and communicates with the lubricating oil suction hole 62A. Lubricant oil outlet 62B formed intaglio along the outer circumferential surface of 42 and lubricating oil discharge hole 62C which communicates with lube oil pocket 62B and penetrates from the upper inner circumferential surface of cylinder 41 to the upper half of front frame 21. )

도면중 미설명 부호인 61H는 윤활유 흡입관이다.In the figure, reference numeral 61H denotes a lubricating oil suction pipe.

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

즉, 왕복동식 모터(30)에 전원을 인가하여 외측고정자(31)와 내측고정자(32) 사이에 플럭스(flux)를 형성하면, 그 외측고정자(31)와 내측고정자(32) 사이의 공극에 놓인 가동자(33)가 플럭스의 방향에 따라 움직이면서 공진스프링 유니트(50)에 의해 지속적으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(41)의 내부에서 왕복운동을 하면서 압축공간(P)의 체적이 변화하여 냉매가스를 압축공간으로 흡입 압축하였다가 토출하는 일련의 과정을 반복하는 것이었다.That is, when a flux is formed between the outer stator 31 and the inner stator 32 by applying power to the reciprocating motor 30, the gap between the outer stator 31 and the inner stator 32 is formed. As the placed mover 33 moves in the direction of the flux, the reciprocating motion is continuously reciprocated by the resonant spring unit 50, and together with the piston 42 reciprocating in the cylinder 41, the compression space P ) Volume was changed so that a series of processes of suction and compression of refrigerant gas into the compression space and discharge were repeated.

이때, 피스톤(31)의 왕복운동에 의한 진동으로 윤활유 펌핑부(61)의 윤활유 실린더(61A)가 함께 진동을 하면서 윤활유 피스톤(61D)이 관성에 의해 케이싱(10)의 윤활유를 펌핑하고, 이 윤활유는 윤활유 토출밸브(61G)를 통과하여 윤활유 공급유로(62)를 따라 윤활유 흡입구멍(62A)과 윤활유포켓(62B)으로 유입하면서 피스톤(42)과 실린더(41) 사이의 미끄럼부를 윤활한다.At this time, while the lubricating oil cylinder 61A of the lubricating oil pumping part 61 vibrates together due to the vibration by the reciprocating motion of the piston 31, the lubricating oil piston 61D pumps the lubricating oil of the casing 10 by inertia. The lubricating oil passes through the lubricating oil discharge valve 61G and flows into the lubricating oil suction hole 62A and the lubricating oil pocket 62B along the lubricating oil supply passage 62 to lubricate the sliding portion between the piston 42 and the cylinder 41.

이후, 윤활유 토출구멍(62C)을 따라 흘러 케이싱(10)으로 복귀하면서 회수되는 것이었다. 도면중 22a는 중간프레임을 체결볼트로 고정하기 위한 관통구멍이다.Then, it flowed along 62C of lubricating oil discharge holes, and was recovered, returning to the casing 10. As shown to FIG. 22a in the figure is a through hole for fixing the intermediate frame with a fastening bolt.

그러나, 상기와 같은 종래 왕복동식 압축기에 있어서는, 윤활유토출구멍(62C)을 통해 토출하는 윤활유가 펌핑력에 의해 케이싱(10)으로 강하게 튀겨 소음을 유발하여 압축기 소음을 증가시키는 문제점이 있었다.However, in the conventional reciprocating compressor as described above, the lubricating oil discharged through the lubricating oil discharge hole 62C is strongly splashed into the casing 10 by the pumping force, causing noise and increasing the compressor noise.

본 발명은 상기와 같은 종래 왕복동식 압축기가 가지는 문제점을 감안하여 안출한 것으로, 실린더와 피스톤 사이의 윤활을 마친 윤활유가 케이싱으로 복귀할 때 생기는 윤활유의 토출압력을 낮춰 케이싱에 부딪힐 때 발생하는 윤활유 소음을 저감할 수 있는 왕복동식 압축기의 소음 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, and the lubricating oil generated when the lubricating oil lubricated between the cylinder and the piston lowers the discharge pressure of the lubricating oil generated when returning to the casing and hits the casing An object of the present invention is to provide a noise reduction device of a reciprocating compressor capable of reducing noise.

도 1은 종래 왕복동식 압축기의 일례를 보인 종단면도.1 is a longitudinal sectional view showing an example of a conventional reciprocating compressor.

도 2는 종래 왕복동식 압축기의 윤활유 유로에 대한 요부를 보인 종단면도.Figure 2 is a longitudinal sectional view showing the main portion of the lubricating oil flow path of the conventional reciprocating compressor.

도 3은 본 발명 왕복동식 압축기의 일례를 보인 종단면도.Figure 3 is a longitudinal sectional view showing an example of the reciprocating compressor of the present invention.

도 4는 본 발명 윤활유 유로에 대한 요부를 보인 종단면도.Figure 4 is a longitudinal sectional view showing the main part of the present invention the lubricating oil flow path.

도 5는 본 발명 윤활유 유로에 대한 변형예를 보인 종단면도.Figure 5 is a longitudinal cross-sectional view showing a modification to the lubricating oil flow path of the present invention.

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

110 : 케이싱 120 : 프레임 유니트110: casing 120: frame unit

121 : 전방프레임 140 : 압축 유니트121: front frame 140: compression unit

144 : 토출밸브 조립체 144A : 토출커버144: discharge valve assembly 144A: discharge cover

144a : 토출공간부 144b : 플랜지부144a: discharge space 144b: flange

160 : 윤활유 공급 유니트 161 : 윤활유 펌핑부160: lubricating oil supply unit 161: lubricating oil pumping unit

162 : 윤활유 공급유로 162C : 윤활유 토출구멍162: lubricating oil supply passage 162C: lubricating oil discharge hole

170 : 완충부 171 : 완충홈170: buffer portion 171: buffer groove

172 : 덮개부 173 : 유토출구172: cover 173: Uto outlet

본 발명의 목적을 달성하기 위하여, 케이싱 내에 설치하는 프레임 유니트와, 프레임 유니트에 고정하여 가동자가 직선으로 왕복운동을 하는 왕복동식 모터와, 이 왕복동식 모터의 가동자에 결합하여 실린더의 내부에서 직선으로 왕복운동을 하면서 유체를 흡입 압축하여 토출하도록 피스톤을 구비한 압축 유니트와, 프레임 유니트에 결합하여 케이싱 내의 윤활유를 실린더와 피스톤 사이로 공급하는 윤활유 공급 유니트를 포함한 왕복동식 압축기에 있어서,In order to achieve the object of the present invention, a frame unit installed in the casing, a reciprocating motor fixed to the frame unit and the mover linearly reciprocates, and coupled to the mover of the reciprocating motor, In a reciprocating compressor including a compression unit having a piston to suck and compress a fluid while reciprocating with a piston, and a lubricating oil supply unit coupled to the frame unit to supply lubricating oil in the casing between the cylinder and the piston,

윤활유 공급 유니트는 프레임 유니트와 함께 진동하면서 케이싱 내의 윤활유를 펌핑하는 윤활유 펌핑부와, 윤활유 펌핑부에 연결하여 윤활유를 압축 유니트의 미끄럼부로 공급하도록 프레임 유니트에 형성하는 윤활유 공급 유로와, 윤활유 공급 유로의 출구측에 형성하여 압축 유니트의 미끄럼부를 거친 윤활유의 토출압력을 완화시키도록 확장공간을 가지는 윤활유 완충부로 이루어진 것을 특징으로 하는 왕복동식 압축기의 소음 저감 장치를 제공한다.The lubricating oil supply unit includes a lubricating oil pumping part that pumps lubricating oil in the casing while vibrating with the frame unit, a lubricating oil supply flow path which is connected to the lubricating oil pumping part and forms a lubricating oil to the sliding part of the compression unit, and a lubricating oil supply flow path. It provides a noise reduction device for a reciprocating compressor formed on the outlet side, consisting of a lubricating oil buffer portion having an expansion space to relieve the discharge pressure of the lubricating oil passed through the sliding portion of the compression unit.

이하, 본 발명에 의한 왕복동식 압축기의 소음 저감 장치를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, the noise reduction apparatus 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 종단면도이고, 도 4는 본 발명 왕복동식 압축기의 윤활유 유로에 대한 요부를 보인 종단면도이다.Figure 3 is a longitudinal sectional view showing an example of the reciprocating compressor of the present invention, Figure 4 is a longitudinal sectional view showing the main part of the lubricating oil flow path of the reciprocating compressor of the present invention.

이에 도시한 바와 같이 본 발명에 의한 소음 저감 장치를 구비한 왕복동식 압축기는, 케이싱(110)의 내부에 탄력 설치하는 프레임 유니트(120)와, 이 프레임 유니트(120)에 고정하는 왕복동식 모터(미도시)와, 이 왕복동식 모터(미도시)와 함께 왕복운동을 하면서 냉매가스를 압축하는 압축 유니트(140)와, 이 압축 유니트(140)의 공진운동을 유지하는 공진스프링 유니트(150)와, 프레임 유니트(120)에 설치하여 케이싱(110) 내의 윤활유를 압축 유니트(140)로 펌핑하는 윤활유 공급 유니트(160)를 포함하여 구성한다.As shown in the drawing, the reciprocating compressor including the noise reduction device according to the present invention includes a frame unit 120 elastically installed in the casing 110 and a reciprocating motor fixed to the frame unit 120 ( And a compression unit 140 for compressing the refrigerant gas while reciprocating together with the reciprocating motor (not shown), and a resonance spring unit 150 for maintaining the resonance motion of the compression unit 140. And a lubricant supply unit 160 installed in the frame unit 120 to pump the lubricant in the casing 110 to the compression unit 140.

프레임 유니트(120)는 압축 유니트(140)를 지지하는 전방프레임(121)과, 왕복동식 모터(미도시)를 사이에 두고 그 양측에 결합하는 중간프레임(미도시) 및 후방프레임(미도시)으로 이루어진다.The frame unit 120 includes a front frame 121 supporting the compression unit 140 and an intermediate frame (not shown) and a rear frame (not shown) coupled to both sides with a reciprocating motor (not shown) therebetween. Is done.

전방프레임(121)에는 윤활유 공급 유니트(160)의 일부를 이루는 윤활유 공급 유로(162)를 형성하고, 윤활유 공급 유로(162)의 출구에는 압축 유니트(10)를 통과한 윤활유를 수용하여 토출압력을 낮추는 윤활유 완충부(170)를 형성한다.The front frame 121 is provided with a lubricating oil supply passage 162 constituting a part of the lubricating oil supply unit 160, the outlet of the lubricating oil supply passage 162 receives the lubricating oil passing through the compression unit 10 to discharge pressure A lowering lubricant buffer 170 is formed.

윤활유 완충부(170)는 후술할 윤활유 토출구멍(162C)의 직경 보다 상대적으로 크게 확장하여 음형지게 형성하는 완충홈(171)과, 완충홈(171)을 덮어 확장공간을 이루도록 하는 덮개부(172)와, 완충홈의 상반부에 위치하도록 전방프레임에 형성하여 상기한 완충홈에 고인 윤활유를 토해내는 유토출구(173)로 이루어진다.Lubricating oil buffer unit 170 is a buffer groove 171 that is formed to be expanded to be relatively larger than the diameter of the lubricating oil discharge hole (162C) to be described later, and the cover portion 172 to cover the buffer groove 171 to form an expansion space ), And the oil discharge outlet 173 formed in the front frame so as to be located in the upper half of the buffer groove to spew lubricant oil accumulated in the buffer groove.

여기서, 유토출구(173)는 도 5에서와 같이 토출커버(144A)의 플랜지부(144b)에 형성할 수도 있다.Here, the oil discharge outlet 173 may be formed in the flange portion 144b of the discharge cover 144A as shown in FIG. 5.

덮개부(172)는 도 4에서와 같이 별도로 제작하여 후조립할 수 있으나, 조립공수 등을 줄이기 위하여는 압축 유니트(140)의 실린더(141)를 복개하는 토출커버(144A)를 이용하는 것이 바람직하다. 즉, 후술할 토출커버(144A)를 전방프레임(121)에 고정하기 위한 플랜지부를 더 확장하여 그 플랜지부로 확장공간을 이루는 완충홈(171)을 덮는 덮개부(172)로 활용하는 것이다.The cover part 172 may be separately assembled and manufactured as shown in FIG. 4, but in order to reduce the assembly labor, it is preferable to use the discharge cover 144A covering the cylinder 141 of the compression unit 140. That is, by further extending the flange portion for fixing the discharge cover 144A to the front frame 121 to be described later to utilize as a cover portion 172 covering the buffer groove 171 forming an expansion space with the flange portion.

압축 유니트(140)는 실린더(141)와, 피스톤(142)과, 흡입밸브(143)와, 토출밸브 조립체(144)로 이루어진다.The compression unit 140 includes a cylinder 141, a piston 142, a suction valve 143, and a discharge valve assembly 144.

토출밸브조립체(144)는 실린더(141)의 토출측을 복개하는 토출커버(144A)와, 토출커버(144A)의 내부에서 실린더(141)의 선단면을 착탈하면서 압축가스의 토출을 제한하는 토출밸브(144B)와, 토출밸브(144B)를 지지하는 밸브스프링(144C)으로 이루어진다.The discharge valve assembly 144 includes a discharge cover 144A for covering the discharge side of the cylinder 141 and a discharge valve for restricting the discharge of compressed gas while detaching the front end surface of the cylinder 141 inside the discharge cover 144A. 144B and a valve spring 144C supporting the discharge valve 144B.

토출커버(144A)는 소정의 내부체적을 가지고 토출밸브(144B)를 수용하는 토출공간부(144a)와, 토출공간부(144a)의 입구에서 확장 형성하여 전방프레임(121)에 고정하는 플랜지부(144b)로 이루어진다. 플랜지부(144b)는 앞서 언급한 바와 같이 완충홈(171)을 덮을 수 있는 넓이로 형성한다.The discharge cover 144A has a predetermined internal volume and has a discharge space portion 144a for accommodating the discharge valve 144B, and a flange portion formed at the inlet of the discharge space portion 144a and fixed to the front frame 121. 144b. The flange portion 144b has a width that can cover the buffer groove 171 as mentioned above.

윤활유 공급 유니트는 프레임 유니트(120)의 하반부에 장착하여 그 프레임 유니트(120)와 함께 진동하면서 케이싱(110)의 윤활유를 펌핑하는 윤활유 펌핑부(161)와, 윤활유 펌핑부(161)의 출구측과 압축 유니트(140)를 연통하도록 상기한 프레임 유니트(120)에 형성하는 윤활유 공급유로(162)로 이루어진다.The lubricating oil supply unit is mounted on the lower half of the frame unit 120 and vibrates with the frame unit 120 to pump the lubricating oil of the casing 110 and the outlet side of the lubricating oil pumping unit 161. And a lubricating oil supply passage 162 formed in the frame unit 120 to communicate with the compression unit 140.

윤활유 공급유로(162)는 전방프레임(121)에서 실린더(141)의 내주면까지를 관통하는 윤활유흡입구멍(162A)과, 윤활유흡입구멍(162A)에 연통하여 피스톤(142)의 외주면에 환형으로 음각지게 형성하는 윤활유포켓(162B)과, 윤활유포켓(162B)의 상반부에서 실린더(141)를 통해 전방프레임(121)의 상반부 전방측으로 관통하고 그 끝단에 상기한 완충홈(171)을 확장 형성하는 윤활유토출구멍(162C)으로 이루어진다.The lubricating oil supply passage 162 communicates with the lubricating oil suction hole 162A penetrating from the front frame 121 to the inner circumferential surface of the cylinder 141 and the lubricating oil suction hole 162A and is engraved in an annular manner to the outer circumferential surface of the piston 142. Lubricating oil pocket 162B for forming a fork, and a lubricant oil penetrating through the cylinder 141 from the upper half of the lubricating oil pocket 162B to the front half of the front half of the front frame 121 and extending the buffer groove 171 at the end thereof. Discharge holes 162C.

도면중 미설명 부호인 151은 전방측 공진스프링, P는 압축공간이다.In the figure, reference numeral 151 denotes a front resonant spring, and P denotes a compression space.

상기와 같은 본 발명 왕복동식 압축기의 소음 저감 장치는 다음과 같은 작용 효과를 갖는다.The noise reduction device of the reciprocating compressor of the present invention as described above has the following effects.

즉, 왕복동식 모터(미도시)에 전원을 인가하여 플럭스(flux)를 형성하면, 가동자(미도시)가 플럭스의 방향에 따라 움직이면서 공진스프링 유니트(150)에 의해 지속적으로 왕복운동을 하고, 이와 함께 피스톤(142)이 실린더(141)의 내부에서 왕복운동을 하면서 냉매가스를 압축공간(P)으로 흡입 압축하였다가 토출한다.That is, when a flux is formed by applying power to a reciprocating motor (not shown), the mover (not shown) continuously reciprocates by the resonance spring unit 150 while moving in the direction of the flux, In addition, while the piston 142 reciprocates in the cylinder 141, the refrigerant gas is sucked and compressed into the compression space P and then discharged.

이 과정중에 윤활유 공급 유니트(160)의 윤활유 펌핑부(161)가 프레임 유니트(120)와 함께 진동하면서 케이싱(110) 내의 윤활유를 압축 유니트(140)로 펌핑하고, 이 윤활유는 윤활유 흡입구멍(162A)을 따라 피스톤(142) 외주면에 구비한 윤활유포켓(162B)으로 공급되어 실린더(141)와 피스톤(142) 사이의 미끄럼부를 윤활한 후에 윤활유 토출구멍(162C)을 따라 케이싱(110)으로 다시 회수되는 일련의 과정을 반복한다.During this process, the lubricating oil pumping unit 161 of the lubricating oil supply unit 160 vibrates with the frame unit 120 to pump the lubricating oil in the casing 110 to the compression unit 140, and the lubricating oil is lubricating oil suction hole 162A. ) Is supplied to the lubricating oil pocket 162B provided on the outer circumferential surface of the piston 142 to lubricate the sliding portion between the cylinder 141 and the piston 142, and then recovered to the casing 110 along the lubricating oil discharge hole 162C. Repeat a series of steps.

이때, 압축 유니트(140)를 거친 윤활유는 윤활유 토출구멍(162C)을 통해 상당히 높은 토출압력으로 토출되려고 하나, 이 윤활유가 윤활유 토출구멍(162C)의 끝단에 완충홈(171)을 구비함에 따라 윤활유가 상기한 완충홈(171)에 먼저 일정 수위까지 채워졌다가 유토출구(173)를 통해 배출됨으로써 윤활유의 토출압력이 현저하게 낮아진다.At this time, the lubricating oil that has passed through the compression unit 140 tries to be discharged at a considerably high discharge pressure through the lubricating oil discharge hole 162C, but the lubricating oil has a buffer groove 171 at the end of the lubricating oil discharge hole 162C. First, the buffer groove 171 is filled up to a predetermined level, and then discharged through the oil discharge outlet 173, so that the discharge pressure of the lubricant is significantly lowered.

또, 유토출구(173)를 토출커버(144A)의 플랜지부(144b)에 형성하는 경우에는윤활유가 토출커버(144A)의 토출공간부(144a) 외주면과 좀더 원활하게 접촉할 수 있어 토출되는 압축가스의 열을 일정정도 낮출 수 있다.In addition, in the case where the oil discharge outlet 173 is formed in the flange portion 144b of the discharge cover 144A, the lubricating oil can contact the outer circumferential surface of the discharge space 144a of the discharge cover 144A more smoothly, and the compressed discharge is performed. The heat of the gas can be lowered to some extent.

이렇게 하여 실린더와 피스톤의 윤활을 마친 윤활유가 케이싱으로 배출될 때에 케이싱에 부딪히는 것을 차단하거나 충돌력을 줄여 압축기 소음을 줄일 수 있다.In this way, when the lubricating oil, which has been lubricated with the cylinder and the piston, is discharged into the casing, the noise of the compressor can be reduced by preventing collision with the casing or reducing the collision force.

본 발명에 의한 왕복동식 압축기의 소음 저감 장치는, 윤활유 토출구멍의 끝단에 윤활유의 토출압력을 낮출 수 있는 완충홈을 확장 형성함으로써, 윤활을 마치고 배출되는 윤활유가 케이싱에 강하게 부딪히는 것을 방지하여 이로 인한 압축기 소음을 낮출 수 있다.The noise reduction device of the reciprocating compressor according to the present invention extends the buffer groove for lowering the discharge pressure of the lubricating oil at the end of the lubricating oil discharge hole, thereby preventing the lubricating oil discharged after lubrication from being strongly hit by the casing. Compressor noise can be lowered.

Claims (3)

케이싱 내에 설치하는 프레임 유니트와, 프레임 유니트에 고정하여 가동자가 직선으로 왕복운동을 하는 왕복동식 모터와, 이 왕복동식 모터의 가동자에 결합하여 실린더의 내부에서 직선으로 왕복운동을 하면서 유체를 흡입 압축하여 토출하도록 피스톤을 구비한 압축 유니트와, 프레임 유니트에 결합하여 케이싱 내의 윤활유를 실린더와 피스톤 사이로 공급하는 윤활유 공급 유니트를 포함한 왕복동식 압축기에 있어서,The frame unit installed in the casing, the reciprocating motor fixed to the frame unit and the mover linearly reciprocates, and coupled to the mover of the reciprocating motor, the fluid is sucked and compressed while reciprocating linearly inside the cylinder. In a reciprocating compressor comprising a compression unit having a piston to discharge the oil and a lubricating oil supply unit coupled to the frame unit to supply lubricating oil in the casing between the cylinder and the piston, 윤활유 공급 유니트는 프레임 유니트와 함께 진동하면서 케이싱 내의 윤활유를 펌핑하는 윤활유 펌핑부와,The lubricant supply unit includes a lubricant pumping part for pumping lubricant in the casing while vibrating with the frame unit; 윤활유 펌핑부에 연결하여 윤활유를 압축 유니트의 미끄럼부로 공급하도록 프레임 유니트에 형성하는 윤활유 공급 유로와,A lubricating oil supply passage which is connected to the lubricating oil pumping unit and formed in the frame unit to supply lubricating oil to the sliding part of the compression unit 윤활유 공급 유로의 출구측에 형성하여 압축 유니트의 미끄럼부를 거친 윤활유의 토출압력을 완화시키도록 확장공간을 가지는 윤활유 완충부로 이루어진 것을 특징으로 하는 왕복동식 압축기의 소음 저감 장치.A noise reduction device for a reciprocating compressor, comprising: a lubricating oil buffer portion formed on an outlet side of a lubricating oil supply flow path and having an expansion space to relieve the discharge pressure of the lubricating oil passing through the sliding portion of the compression unit. 제1항에 있어서,The method of claim 1, 윤활유 완충부는 프레임 유니트에 윤활유 공급 유로 보다 확장된 완충홈을 음형지게 형성하고, 이 완충홈을 압축 유니트의 일부를 이루는 토출밸브 조립체의 토출커버로 덮어 상기한 확장공간을 형성하여 이루어지는 것을 특징으로 하는 왕복동식 압축기의 소음 저감 장치.The lubricating oil buffer part is formed by negatively forming a buffer groove extended to the frame unit than the lubricating oil supply flow path, and covers the buffer groove with the discharge cover of the discharge valve assembly constituting a part of the compression unit to form the expansion space. Noise reduction device for reciprocating compressors. 제2항에 있어서,The method of claim 2, 확장공간에 채워지는 윤활유를 케이싱의 내부로 토해내도록 하는 유토출구를 확장공간의 상반부에 위치하는 프레임 유니트에 형성하거나 토출커버의 일측에 형성하는 것을 특징으로 하는 왕복동식 압축기의 소음 저감 장치.An apparatus for reducing noise of a reciprocating compressor, characterized in that the oil discharge outlet for discharging the lubricating oil filled in the expansion space into the casing is formed in the frame unit located at the upper half of the expansion space or on one side of the discharge cover.
KR1020020021689A 2002-04-19 2002-04-19 Device for reducing noise of reciprocating compressor KR20030083241A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100504859B1 (en) * 2002-12-03 2005-07-29 엘지전자 주식회사 Oil exhaust apparatus for reciprocating compressor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6089836A (en) * 1998-01-12 2000-07-18 Lg Electronics Inc. Linear compressor
KR100273461B1 (en) * 1998-12-28 2000-12-15 구자홍 Overhaet protection structure of a linear compressor
KR100292522B1 (en) * 1998-12-26 2001-11-15 구자홍 Leakage Gas Discharge Structure of Linear Compressor
KR100292516B1 (en) * 1998-12-11 2001-11-30 구자홍 Linear compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6089836A (en) * 1998-01-12 2000-07-18 Lg Electronics Inc. Linear compressor
KR100292516B1 (en) * 1998-12-11 2001-11-30 구자홍 Linear compressor
KR100292522B1 (en) * 1998-12-26 2001-11-15 구자홍 Leakage Gas Discharge Structure of Linear Compressor
KR100273461B1 (en) * 1998-12-28 2000-12-15 구자홍 Overhaet protection structure of a linear compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100504859B1 (en) * 2002-12-03 2005-07-29 엘지전자 주식회사 Oil exhaust apparatus for reciprocating compressor

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