KR20030051083A - Discharge valve apparatus of rotary compressor - Google Patents

Discharge valve apparatus of rotary compressor Download PDF

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Publication number
KR20030051083A
KR20030051083A KR1020010081983A KR20010081983A KR20030051083A KR 20030051083 A KR20030051083 A KR 20030051083A KR 1020010081983 A KR1020010081983 A KR 1020010081983A KR 20010081983 A KR20010081983 A KR 20010081983A KR 20030051083 A KR20030051083 A KR 20030051083A
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KR
South Korea
Prior art keywords
valve
discharge hole
discharge
rotary compressor
cylinder
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KR1020010081983A
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Korean (ko)
Inventor
강완봉
Original Assignee
주식회사 엘지이아이
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Priority to KR1020010081983A priority Critical patent/KR20030051083A/en
Publication of KR20030051083A publication Critical patent/KR20030051083A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/0027Pulsation and noise damping means
    • F04B39/0055Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0072Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes characterised by assembly or mounting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06Silencing
    • F04C29/063Sound absorbing materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/50Bearings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE: A discharge valve device of a rotary compressor is provided to reduce frictional noise and wear of a valve by improving the structure of a valve assembly. CONSTITUTION: A discharge valve device of a rotary compressor comprises an upper bearing, covering the compression space of a cylinder(8) in which an eccentric part(4a) of a rotating shaft(4) is inserted, and supporting the rotating shaft, and a valve assembly(120) comprised of a valve contacting with a discharge hole of the upper bearing and opening the discharge hole; a friction-preventing unit formed to the discharge hole contact part of the valve, to prevent frictional noise; and a retainer elastically supporting the valve, to make the inside of the cylinder opened under a predetermined pressure. In the friction-preventing unit, the discharge hole contact part of the valve is covered with a rubber coating material. A rubber ring is mounted to the discharge hole contact part of the valve.

Description

회전식 압축기의 토출 밸브장치{DISCHARGE VALVE APPARATUS OF ROTARY COMPRESSOR}Discharge valve device for rotary compressor {DISCHARGE VALVE APPARATUS OF ROTARY COMPRESSOR}

본 발명은 회전식 압축기의 토출 밸브장치에 관한 것으로서, 보다 상세히 설명하면 상부베어링의 토출홀에 장착되어 실린더에서 압축된 냉매가 일정압력에 이르면 토출시키는 토출밸브에 마찰소음을 방지하는 밸브조립체를 장착하여 소음을 저감시키는 회전식 압축기의 토출 밸브장치에 관한 것이다.The present invention relates to a discharge valve device of a rotary compressor, and more specifically, it is equipped with a valve assembly for preventing friction noise in a discharge valve installed in a discharge hole of an upper bearing and discharged when a refrigerant compressed in a cylinder reaches a predetermined pressure. A discharge valve device for a rotary compressor that reduces noise.

일반적으로 회전식 압축기는 원심력에 의하지 않고 회전축을 회전시켜 실린더 내의 냉매를 압축시키는 것으로, 회전축의 하부에 형성되고 편심된 편심부의 회전에 연동하여 실린더의 내주면을 따라 공전 및 자전하는 롤링피스톤의 운동에 의해 냉매를 흡입, 압축하는 기기이며, 상기 밀폐형 압축기에 장착되는 어큐뮬레이터는 상기 회전식 압축기에 흡입되는 냉매에서 액체 냉매 및 불순물을 분리하는 역할을 수행한다.In general, a rotary compressor compresses a refrigerant in a cylinder by rotating a rotating shaft instead of centrifugal force, and is formed by a rolling piston rotating and rotating along an inner circumferential surface of the cylinder in conjunction with rotation of an eccentric portion formed at a lower portion of the rotating shaft. A device for sucking and compressing a refrigerant, and an accumulator mounted in the hermetic compressor serves to separate the liquid refrigerant and impurities from the refrigerant sucked into the rotary compressor.

이러한 회전식 압축기는 도 1에 도시한 바와 같이 회전식 압축기는 소정의 내부 수용공간을 갖으며 흡입관(14) 및 토출관(15)이 형성된 밀폐용기(1)가 있고, 상기 밀폐용기(1)의 내부에는 고정자(2)와 회전자(3) 등으로 구성되는 전동기구부가 설치되어 있으며, 상기 회전자(3)의 내경에 압입되며 하부에 편심부(4a)가 형성된 회전축(4)과, 상기 회전축(4)의 편심부(4a)를 감싸며 상부베어링(5) 및 하부베어링(6)과 함께 볼트(7)에 의해 결합되어 있는 실린더(8)와 상기 회전축(4)의 편심부(4a)에 삽입되어 상기 실린더(8)의 내경을 접하면서 자전 및 공전하는 롤링피스톤(9)과, 상기 롤링피스톤(9)의 외주면과 슬라이딩 접촉되면서 상기 실린더(8) 내부를 고압부와 저압부로 분리하며 직선 운동하는 베인(도시되지 않음) 등으로 구성되는 압축기구부가 설치되어 구성된다.As shown in FIG. 1, the rotary compressor has a sealed container 1 having a predetermined inner receiving space and having a suction pipe 14 and a discharge pipe 15 formed therein, and inside the sealed container 1. It is provided with a motor mechanism consisting of a stator (2) and a rotor (3), the rotary shaft 4 is pressed into the inner diameter of the rotor 3, the eccentric portion (4a) is formed at the bottom, and the rotary shaft On the eccentric portion 4a of the rotating shaft 4 and the cylinder 8, which is enclosed by the eccentric portion 4a of (4) and is coupled by a bolt 7 together with the upper bearing 5 and the lower bearing 6; The rolling piston 9 is inserted into and in contact with the inner diameter of the cylinder 8 to rotate and rotate, and is in sliding contact with the outer circumferential surface of the rolling piston 9 to separate the inside of the cylinder 8 into a high pressure part and a low pressure part, and to move linearly. Compressor mechanism is composed of a vane (not shown) or the like is installed.

상기 실린더(8)의 저압부에는 냉매가스가 상기 실린더(8) 내부로 유입되는 흡입구(8b)가 형성되어 있고, 상기 흡입구(8b)는 상기 밀폐용기(1)의 측부에 설치되는 어큐뮬레이터(13)와 흡입관(14)에 의해 연결되어 있다.The low pressure part of the cylinder 8 is formed with an inlet 8b through which refrigerant gas flows into the cylinder 8, and the inlet 8b is an accumulator 13 installed at the side of the sealed container 1. ) And the suction pipe (14).

상기 베인에 의해 고압부를 이루는 상기 실린더(8)의 일측에 압축된 냉매가스를 토출하는 토출포트(8a)가 형성되어 있고, 상기 상부베어링(5)의 일측에 상기 토출포트(8a)와 연통되게 토출홀(5a)이 형성되어 있다.A discharge port 8a for discharging the compressed refrigerant gas is formed at one side of the cylinder 8 forming the high pressure part by the vane, and in communication with the discharge port 8a at one side of the upper bearing 5. The discharge hole 5a is formed.

상기 상부베어링(5)의 상면에는 일정압력 이상이 되면 상기 토출홀(5a)을 개방하는 밸브(21)와, 그 밸브(21)의 열림 상태를 한정, 지지하는 리테이너(22)가 함께 고정구(23)로 체결되는 밸브조립체(20)가 구비되어 구성된다.On the upper surface of the upper bearing 5, a valve 21 for opening the discharge hole 5a when the pressure exceeds a predetermined pressure, and a retainer 22 for limiting and supporting the open state of the valve 21 are fixed together. 23 is provided with a valve assembly 20 is fastened to.

또한, 상기 상부베어링(5)의 상부에는 토출가스의 토출 소음을 저감시키는 소음기(12)가 복개되어 결합된다.In addition, the upper portion of the upper bearing 5 is coupled to the silencer 12 for reducing the discharge noise of the discharge gas is coupled.

이와 같이 구성된 회전식 압축기에 전류가 공급되어 상기 회전자(3)가 회전하면서 상기 회전축(4)을 회전시키면, 상기 회전축(4)의 회전에 의해 상기 편심부(4a)에 장착된 상기 롤링피스톤(9)이 상기 실린더(8) 내부를 상기 베인과 접촉된 상태에서 회전하게 되고, 상기 회전축(4)과 롤링피스톤(9)의 회전에 의해 상기 어큐뮬레이터(13)를 통과해 유입된 저온저압의 냉매가 상기 흡입관(14)과 흡입구(8b)를 통해 상기 실린더(8) 내부로 흡입되어 고온 고압의 냉매로 압축된다.When a current is supplied to the rotary compressor configured as described above and the rotor 3 rotates to rotate the rotary shaft 4, the rolling piston mounted to the eccentric portion 4a by the rotation of the rotary shaft 4 ( 9) rotates the inside of the cylinder (8) in contact with the vane, the low-temperature low-pressure refrigerant flowing through the accumulator (13) by the rotation of the rotating shaft (4) and the rolling piston (9) Is sucked into the cylinder (8) through the suction pipe (14) and the suction port (8b) and compressed into a refrigerant of high temperature and high pressure.

상기 실린더(8)에서 냉매가 일정압 이상으로 압축되면 상기 리테이너(22)에 지지되어 닫혀 있던 상기 밸브(21)가 열리면서 압축된 고온, 고압의 냉매가 상기 토출포트(8a) 및 토출홀(5a)을 통해 상기 소음기(12)를 거쳐 상기 밀폐용기(1) 내부로 토출되며, 그 토출된 냉매는 상기 밀폐용기(1)의 상부에 형성된 토출관(15)을 통해 외부로 토출된다.When the refrigerant in the cylinder 8 is compressed to a predetermined pressure or more, the valve 21, which is supported and closed by the retainer 22, is opened and the compressed high-temperature and high-pressure refrigerant is discharged into the discharge port 8a and the discharge hole 5a. ) Is discharged into the sealed container (1) through the silencer 12, the discharged refrigerant is discharged to the outside through the discharge pipe 15 formed on the top of the sealed container (1).

그러나, 상기와 같은 종래 구조의 회전식 압축기에 있어서, 상기 상부베어링(5)에 장착되는 상기 밸브조립체(20)는 도 2에 도시한 바와 같이 상기 밸브(21)가 상기 상부베어링(5)에 가공된 안착부(5B)에 안착되고, 상기 리테이너(22)가 상기 밸브(22)를 지지하도록 결합된 후 상기 고정구(23)에 의해 고정된다.However, in the rotary compressor of the conventional structure as described above, the valve assembly 20 mounted on the upper bearing 5 is processed by the valve 21 to the upper bearing 5 as shown in FIG. It is seated in the seating portion 5B, and the retainer 22 is coupled to support the valve 22 and then fixed by the fixture 23.

이때, 상기 밸브(21)와 상부베어링(5)은 상기 회전자(4)의 매 회전 시, 상기 밸브(21)의 개폐동작에 의해 충돌이 발생됨으로써, 그 충돌에 의해 소음 및 상기 밸브(21)의 마모가 발생되는 문제점이 야기된다.At this time, the valve 21 and the upper bearing 5, the collision occurs by the opening and closing operation of the valve 21 at every rotation of the rotor 4, the noise and the valve 21 by the collision ) Causes a problem of wear.

상기와 같은 점을 감안하여 안출한 본 발명의 목적은 실린더에 압축된 냉매가 일정압력에 달하면 개폐되도록 장착된 밸브조립체의 구조를 개선하여 마찰소음 및 밸브의 마모를 저감시키는 회전식 압축기의 토출 밸브장치에 관한 것이다.An object of the present invention devised in view of the above point is to improve the structure of the valve assembly mounted to open and close when the refrigerant compressed in the cylinder reaches a predetermined pressure discharge valve device of the rotary compressor to reduce friction noise and wear of the valve It is about.

도 1은 일반적인 회전식 압축기의 내부 구조를 도시한 종단면도,1 is a longitudinal sectional view showing an internal structure of a general rotary compressor;

도 2는 도 1의 회전식 압축기에 장착되는 밸브조립체를 도시한 사시도,Figure 2 is a perspective view of the valve assembly mounted to the rotary compressor of Figure 1,

도 3은 본 발명의 일 실시예인 토출 밸브장치가 장착된 회전식 압축기의 내부 구조를 도시한 종단면도,3 is a longitudinal sectional view showing the internal structure of a rotary compressor equipped with a discharge valve device according to an embodiment of the present invention;

도 4는 도 3의 회전식 압축기에 장착되는 밸브조립체를 도시한 사시도,4 is a perspective view showing a valve assembly mounted to the rotary compressor of FIG.

도 5는 본 발명의 또다른 실시예인 회전식 압축기에 장착되는 밸브조립체를 도시한 사시도.5 is a perspective view showing a valve assembly mounted to a rotary compressor according to another embodiment of the present invention.

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

1 : 밀폐용기 2 : 고정자1: sealed container 2: stator

3 : 회전자 4 : 회전축3: rotor 4: rotation axis

6 : 하부베어링 7 : 볼트6: lower bearing 7: bolt

8 : 실린더 8a : 토출포트8: cylinder 8a: discharge port

8b : 흡입구 9 : 롤링피스톤8b: suction port 9: rolling piston

12 : 소음기 13 : 어큐뮬레이터12: silencer 13: accumulator

14 : 흡입관 15 : 토출관14: suction pipe 15: discharge pipe

105 : 상부베어링 105a : 토출홀105: upper bearing 105a: discharge hole

120 : 밸브조립체 121 : 밸브120: valve assembly 121: valve

121a : 고무코팅재 121b : 고무링121a: rubber coating material 121b: rubber ring

122 : 리테이너 123 : 고정구122: Retainer 123: Fixture

상기와 같은 점을 감안하여 안출한 회전식 압축기의 토출 밸브장치는 소정 형상으로 형성되어 회전축의 편심부가 삽입되는 실린더의 압축공간을 복개함과 아울러, 상기 회전축을 지지하며 그 일측에 상기 압축공간에서 압축된 가스가 토출되는 토출홀이 구비된 상부 베어링과, 상기 상부베어링의 토출홀에 접촉되며 토출홀을 개폐하는 밸브와, 상기 밸브의 상기 토출홀 접촉부에 형성되어 마찰소음을 방지하는 마찰방지수단과, 상기 밸브를 탄성지지하며 상기 실린더 내부가 일정압에 이르면 열리도록 탄성 지지하는 리테이너로 형성된 밸브조립체가 구비되어 구성된다.The discharge valve device of the rotary compressor devised in view of the above point is formed in a predetermined shape to cover the compression space of the cylinder into which the eccentric portion of the rotation shaft is inserted, and to support the rotation shaft and to compress the compression space on one side thereof. An upper bearing having a discharge hole through which the discharged gas is discharged, a valve contacting the discharge hole of the upper bearing and opening and closing the discharge hole, and friction preventing means formed at the discharge hole contact portion of the valve to prevent friction noise; And a valve assembly formed of a retainer elastically supporting the valve and elastically supporting the inside of the cylinder to open when the cylinder reaches a predetermined pressure.

또한, 밸브조립체는 상기 상부베어링의 토출홀에 접촉되며 토출홀을 개폐하는 밸브와, 상기 밸브의 상기 토출홀 접촉부에 형성되어 마찰소음을 방지하는 마찰방지수단과, 상기 밸브를 탄성지지하며 상기 실린더 내부가 일정압에 이르면 열리도록 탄성 지지하는 리테이너가 구비되어 구성된다.In addition, the valve assembly is a valve for contacting the discharge hole of the upper bearing and opening and closing the discharge hole, the friction preventing means formed in the discharge hole contact portion of the valve to prevent friction noise, and the elastic support for the valve and the cylinder A retainer is provided which is elastically supported to open when the inside reaches a constant pressure.

이하 본 발명의 일 실시예인 회전식 압축기의 토출 밸브장치를 첨부된 도면을 참조하여 보다 상세히 설명하면 다음과 같고, 종래와 동일한 부분에 대하여는 동일한 부호를 부여하여 설명한다.DETAILED DESCRIPTION Hereinafter, a discharge valve device of a rotary compressor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 일 실시예인 회전식 압축기의 토출 밸브장치가 장착된 회전식 압축기의 종 단면도로써, 도 3에 도시한 바와 같이 회전식 압축기는 소정의 내부 수용공간을 갖으며 흡입관(14) 및 토출관(15)이 형성된 밀폐용기(1)가 있고, 상기 밀폐용기(1)의 내부에는 고정자(2)와 회전자(3) 등으로 구성되는 전동기구부가 설치되어 있으며, 상기 회전자(3)의 내경에 압입되며 하부에 편심부(4a)가 형성된 회전축(4)과, 상기 회전축(4)의 편심부(4a)를 감싸며 상부베어링(5) 및 하부베어링(6)과 함께 볼트(7)에 의해 결합되어 있는 실린더(8)와 상기 회전축(4)의 편심부(4a)에 삽입되어 상기 실린더(8)의 내경을 접하면서 자전 및 공전하는 롤링피스톤(9)과, 상기 롤링피스톤(9)의 외주면과 슬라이딩 접촉되면서 상기 실린더(8) 내부를 고압부와 저압부로 분리하며 직선 운동하는 베인(도시되지 않음) 등으로 구성되는 압축기구부가 설치되어 구성된다.3 is a longitudinal cross-sectional view of a rotary compressor equipped with a discharge valve device of a rotary compressor according to an embodiment of the present invention. As shown in FIG. 3, the rotary compressor has a predetermined inner receiving space, and a suction pipe 14 and a discharge pipe. There is an airtight container (1) in which 15 is formed, and inside the airtight container (1) there is provided an electric mechanism composed of a stator (2), a rotor (3), and the like. The rotary shaft 4 is press-fitted into the inner diameter and the eccentric portion 4a is formed on the lower portion, and the eccentric portion 4a of the rotary shaft 4 surrounds the bolt 7 together with the upper bearing 5 and the lower bearing 6. A rolling piston 9 which is inserted into an eccentric portion 4a of the cylinder 8 and the rotating shaft 4 which are coupled by rotation, and which rotates and revolves while contacting the inner diameter of the cylinder 8, and the rolling piston 9 Sliding contact with the outer circumferential surface of the cylinder (8) separates the high pressure portion and low pressure portion Vanes (not shown) that is the compression mechanism portion is provided consisting of a configuration or the like.

상기 실린더(8)의 저압부에는 냉매가스가 상기 실린더(8) 내부로 유입되는 흡입구(8b)가 형성되어 있고, 상기 흡입구(8b)는 상기 밀폐용기(1)의 측부에 설치되는 어큐뮬레이터(13)와 흡입관(14)에 의해 연결되어 있다.The low pressure part of the cylinder 8 is formed with an inlet 8b through which refrigerant gas flows into the cylinder 8, and the inlet 8b is an accumulator 13 installed at the side of the sealed container 1. ) And the suction pipe (14).

상기 베인에 의해 고압부를 이루는 상기 실린더(8)의 일측에 압축된 냉매가스를 토출하는 토출포트(8a)가 형성되어 있고, 상기 상부베어링(5)의 일측에 상기 토출포트(8a)와 연통되게 토출홀(5a)이 형성되어 있다.A discharge port 8a for discharging the compressed refrigerant gas is formed at one side of the cylinder 8 forming the high pressure part by the vane, and in communication with the discharge port 8a at one side of the upper bearing 5. The discharge hole 5a is formed.

도 4에 도시한 바와 같이 상기 상부베어링(5)의 상면에는 일정압력 이상이 되면 상기 토출홀(5a)을 개방하는 밸브(121)와, 상기 토출홀(5a)과 접촉되는 상기 밸브(121)의 접촉부에 도포된 고무코팅재(121a)와, 상기 밸브(121)의 열림 상태를 한정, 지지하는 리테이너(122)가 함께 고정구(123)로 체결되는 밸브조립체(120)가 구비되어 구성된다.As shown in FIG. 4, the upper surface of the upper bearing 5 has a valve 121 that opens the discharge hole 5a when a predetermined pressure or more is reached, and the valve 121 is in contact with the discharge hole 5a. The rubber coating material 121a applied to the contact portion of the valve assembly and the retainer 122 for limiting and supporting the open state of the valve 121 are configured to include a valve assembly 120 fastened together by the fixture 123.

또한, 상기 상부베어링(5)의 상부에는 토출가스의 토출 소음을 저감시키는 소음기(12)가 복개되어 결합된다.In addition, the upper portion of the upper bearing 5 is coupled to the silencer 12 for reducing the discharge noise of the discharge gas is coupled.

이와 같이 구성된 회전식 압축기에 전류가 공급되어 상기 회전자(3)가 회전하면서 상기 회전축(4)을 회전시키면, 상기 회전축(4)의 회전에 의해 상기 편심부(4a)에 장착된 상기 롤링피스톤(9)이 상기 실린더(8) 내부를 상기 베인과 접촉된 상태에서 회전하게 되고, 상기 회전축(4)과 롤링피스톤(9)의 회전에 의해 상기 어큐뮬레이터(13)를 통과해 유입된 저온저압의 냉매가 상기 흡입관(14)과 흡입구(8b)를 통해 상기 실린더(8) 내부로 흡입되어 고온 고압의 냉매로 압축된다.When a current is supplied to the rotary compressor configured as described above and the rotor 3 rotates to rotate the rotary shaft 4, the rolling piston mounted to the eccentric portion 4a by the rotation of the rotary shaft 4 ( 9) rotates the inside of the cylinder (8) in contact with the vane, the low-temperature low-pressure refrigerant flowing through the accumulator (13) by the rotation of the rotating shaft (4) and the rolling piston (9) Is sucked into the cylinder (8) through the suction pipe (14) and the suction port (8b) and compressed into a refrigerant of high temperature and high pressure.

상기 실린더(8)에서 냉매가 일정압 이상으로 압축되면 상기 리테이너(122)에 지지되어 닫혀 있던 상기 밸브(121)가 열리면서 압축된 고온, 고압의 냉매가 상기 토출포트(8a) 및 토출홀(5a)을 통해 상기 소음기(12)를 거쳐 상기 밀폐용기(1) 내부로 토출되며, 그 토출된 냉매는 상기 밀폐용기(1)의 상부에 형성된 토출관(15)을 통해 외부로 토출된다.When the refrigerant in the cylinder 8 is compressed to a predetermined pressure or more, the valve 121, which is supported by the retainer 122 and is closed, is opened and the compressed high-temperature and high-pressure refrigerant is discharged into the discharge port 8a and the discharge hole 5a. ) Is discharged into the sealed container (1) through the silencer 12, the discharged refrigerant is discharged to the outside through the discharge pipe 15 formed on the top of the sealed container (1).

이때, 상기 상부베어링(5)의 토출홀(5a)에 접촉되는 상기 밸브(121)의 접촉부에 고무코팅재(121a)가 도포됨으로써, 상기 리테이너(122)에 의해 탄성지지 되는 밸브(121)의 개폐 시, 마찰소음 및 마찰에 의한 마모가 저감되는 것이다.At this time, the rubber coating material 121a is applied to the contact portion of the valve 121 in contact with the discharge hole 5a of the upper bearing 5, thereby opening and closing the valve 121 elastically supported by the retainer 122. In this case, friction noise and abrasion due to friction are reduced.

마찬가지로, 본 발명의 또 다른 실시예는 도 5에 도시한 바와 같이 상기 상부베어링(5)의 상면에는 일정압력 이상이 되면 상기 토출홀(5a)을 개방하는 밸브(121)와, 상기 토출홀(5a)과 접촉되는 상기 밸브(121)의 접촉부에 장착된 고무링(121b)과, 상기 밸브(121)의 열림 상태를 한정, 지지하는 리테이너(122)가 함께 고정구(123)로 체결되는 밸브조립체(120)가 구비되어 구성되고, 상기 상부베어링(5)의 토출홀(5a)에 접촉되는 상기 밸브(121)의 접촉부에 고무링(121b)이 장착됨으로써, 상기 리테니어(122)에 의해 탄성지지 되는 밸브(121)의 개폐 시, 마찰에 의한 마모 및 마찰소음이 저감되는 것이다.Similarly, according to another embodiment of the present invention, as shown in FIG. 5, the upper surface of the upper bearing 5 has a valve 121 which opens the discharge hole 5a when a predetermined pressure or more is reached, and the discharge hole ( A valve assembly in which a rubber ring 121b attached to a contact portion of the valve 121 in contact with 5a and a retainer 122 for limiting and supporting the open state of the valve 121 are fastened together by a fixture 123. 120 is provided, and the rubber ring 121b is attached to the contact portion of the valve 121 which is in contact with the discharge hole 5a of the upper bearing 5, so that the retainer 122 When opening and closing the valve 121 to be elastically supported, wear and friction noise by friction is reduced.

이와 같이 본 발명에 따른 회전식 압축기의 토출 밸브장치는 상기 실린더 내부가 일정압력에 달하면 개폐되는 상기 밸브조립체의 밸브에 고무코팅재 및 고무링이 형성되어 상기밸브가 상기 상부베어링에 접촉되어 발생되는 마찰에 의한 마찰소음 및 마모가 저감되는 것이다.As described above, the discharge valve device of the rotary compressor according to the present invention has a rubber coating material and a rubber ring formed on the valve of the valve assembly that opens and closes when the cylinder reaches a predetermined pressure, thereby preventing friction caused by the valve contacting the upper bearing. Friction noise and abrasion are reduced.

이상에서 살펴본 바와 같이 본 발명에 의한 회전식 압축기의 토출 밸브장치는 실린더의 내부에서 압축된 냉기가 토출되는 상부베어링의 토출홀을 개폐하도록 장착된 밸브조립체의 밸브에 형성된 마찰방지수단인 고무코팅재, 또는 고무링을 장착하여 상기 밸브의 개폐 시, 상기 상부베어링과의 접촉에 의해 발생되는 마찰이 감소됨으로써, 마찰에 의한 마모 및 마찰소음이 저감되는 효과가 있다.As described above, the discharge valve device of the rotary compressor according to the present invention is a rubber coating material which is an anti-friction means formed in a valve of a valve assembly mounted to open and close a discharge hole of an upper bearing through which cold air compressed in the cylinder is discharged, or When the rubber ring is mounted to open and close the valve, friction generated by contact with the upper bearing is reduced, thereby reducing wear and friction noise caused by friction.

Claims (3)

소정 형상으로 형성되어 회전축의 편심부가 삽입되는 실린더의 압축공간을 복개함과 아울러, 상기 회전축을 지지하며 그 일측에 상기 압축공간에서 압축된 가스가 토출되는 토출홀이 구비된 상부 베어링과,An upper bearing formed in a predetermined shape to cover the compression space of the cylinder into which the eccentric portion of the rotation shaft is inserted, and to support the rotation shaft and having a discharge hole at one side of which discharges compressed gas from the compression space; 상기 상부베어링의 토출홀에 접촉되며 토출홀을 개폐하는 밸브와, 상기 밸브의 상기 토출홀 접촉부에 형성되어 마찰소음을 방지하는 마찰방지수단과, 상기 밸브를 탄성지지하며 상기 실린더 내부가 일정압에 이르면 열리도록 탄성 지지하는 리테이너로 형성된 밸브조립체가 구비되어 구성되는 것을 특징으로 하는 회전식 압축기의 토출 밸브장치.A valve which contacts the discharge hole of the upper bearing and opens and closes the discharge hole, friction preventing means formed at the discharge hole contact portion of the valve to prevent friction noise, and elastically supports the valve and the inside of the cylinder has a constant pressure. Discharge valve device of a rotary compressor, characterized in that the valve assembly formed of a retainer for elastic support so as to open as soon as possible. 제 1항에 있어서, 상기 마찰방지수단은 상기 밸브의 토출홀 접촉부에 고무코팅재가 도포되는 것을 특징으로 하는 회전식 압축기의 토출 밸브장치.The discharge valve device of a rotary compressor of claim 1, wherein the friction preventing means is coated with a rubber coating material on a contact portion of the discharge hole of the valve. 제 1항에 있어서, 상기 마찰방지수단은 상기 밸브의 토출홀 접촉부에 고무링이 장착되어 구성되는 것을 특징으로 하는 회전식 압축기의 토출 밸브장치.The discharge valve device of a rotary compressor according to claim 1, wherein the friction preventing means comprises a rubber ring mounted to a contact portion of the discharge hole of the valve.
KR1020010081983A 2001-12-20 2001-12-20 Discharge valve apparatus of rotary compressor KR20030051083A (en)

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