KR100624020B1 - Rotary compressor - Google Patents

Rotary compressor Download PDF

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Publication number
KR100624020B1
KR100624020B1 KR1020040075201A KR20040075201A KR100624020B1 KR 100624020 B1 KR100624020 B1 KR 100624020B1 KR 1020040075201 A KR1020040075201 A KR 1020040075201A KR 20040075201 A KR20040075201 A KR 20040075201A KR 100624020 B1 KR100624020 B1 KR 100624020B1
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South Korea
Prior art keywords
oil
discharge
sealed container
unit
rotary compressor
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KR1020040075201A
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Korean (ko)
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KR20060026324A (en
Inventor
변범영
윤영
성춘모
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삼성전자주식회사
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Priority to KR1020040075201A priority Critical patent/KR100624020B1/en
Publication of KR20060026324A publication Critical patent/KR20060026324A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-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
    • F04C18/34—Rotary-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
    • F04C18/356—Rotary-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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/025—Lubrication; Lubricant separation using a lubricant pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

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

Abstract

본 발명은 로터리압축기에 관한 것으로, 이러한 본 발명의 목적은 토출관을 통해 밀폐용기 외부로 토출되는 오일의 토출량을 저감시킬 수 있도록 마련된 로터리압축기를 제공하는 것이다.The present invention relates to a rotary compressor, an object of the present invention is to provide a rotary compressor provided to reduce the discharge amount of oil discharged to the outside of the sealed container through the discharge tube.

이를 위해 본 발명에 따른 로터리압축기는 구동력을 발생시키는 구동부 및 상기 구동부의 구동력을 전달 받아 냉매를 압축하는 압축부가 내부에 마련되며 저면에 오일이 채워진 밀폐용기와, 상기 밀폐용기 저면의 오일을 상기 구동부와 압축부로 전달하도록 마련된 오일공급기구와, 상기 압축부에서 압축된 냉매를 상기 밀폐용기 외부로 토출시키도록 상기 밀폐용기에 설치된 토출관과, 상기 토출관을 통한 오일의 토출량을 저감시키도록 상기 토출관 내면에 형성된 오일토출억제부를 포함하여 구성된다. To this end, the rotary compressor according to the present invention is provided with a driving unit for generating a driving force and a compression unit for compressing a refrigerant by receiving the driving force of the driving unit, and a sealed container filled with oil on a bottom surface thereof, and an oil on the bottom surface of the sealed container. And an oil supply mechanism provided to deliver to the compression unit, a discharge tube installed in the sealed container to discharge the refrigerant compressed by the compression unit to the outside of the sealed container, and the discharge to reduce the discharge amount of oil through the discharge tube. It is configured to include an oil discharge inhibiting portion formed on the inner surface of the tube.

Description

로터리압축기{ROTARY COMPRESSOR}Rotary Compressor {ROTARY COMPRESSOR}

도 1은 본 발명에 따른 로터리압축기의 구조를 나타낸 측단면도이다.1 is a side cross-sectional view showing the structure of a rotary compressor according to the present invention.

도 2는 도 1의 A-A선에 따른 단면도이다. 2 is a cross-sectional view taken along the line A-A of FIG.

도 3은 본 발명에 따른 로터리압축기의 요부를 확대 도시한 측단면도이다.Figure 3 is an enlarged side cross-sectional view showing the main portion of the rotary compressor according to the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10: 밀폐용기 11: 오일저장공간10: airtight container 11: oil storage space

12: 회전축 14: 토출관12: shaft 14: discharge tube

14a: 입구 14b: 오일토출억제부14a: inlet 14b: oil discharge control unit

20: 구동부 30: 압축부20: drive unit 30: compression unit

40: 오일유로40: oil euro

본 발명은 로터리압축기에 관한 것으로, 더욱 상세하게는 토출관을 통해 밀폐용기 외부로 토출되는 오일의 토출량을 저감시키도록 마련된 로터리압축기에 관한 것이다.The present invention relates to a rotary compressor, and more particularly to a rotary compressor provided to reduce the discharge amount of oil discharged to the outside of the sealed container through the discharge tube.

일반적으로 로터리압축기는 저면에 오일저장공간이 형성된 밀폐용기를 통해 그 외관을 형성하게 되며, 이러한 밀폐용기의 내부에는 냉매의 압축을 위한 압축부와, 냉매의 압축에 따른 압축동력을 제공하는 구동부, 그리고 구동부의 구동력을 압축부로 전달하도록 압축부와 구동부를 연결하는 회전축이 설치된다. In general, the rotary compressor forms an appearance through an airtight container having an oil storage space formed on a bottom thereof, and a compression part for compressing the refrigerant and a driving part for providing a compression power according to the compression of the refrigerant in the sealed container. And a rotating shaft connecting the compression unit and the drive unit is installed to transmit the driving force of the drive unit to the compression unit.

또 밀폐용기의 일측과 타측에는 어큐뮬레이터 측 냉매를 밀폐용기 내부로 전달하도록 마련된 흡입관과 밀폐용기 내부에서 압축된 냉매를 밀폐용기 외부로 토출시키기 위한 토출관이 각각 결합된다. In addition, one side and the other side of the sealed container is coupled to the suction tube is provided to transfer the accumulator-side refrigerant into the sealed container and the discharge tube for discharging the refrigerant compressed in the sealed container to the outside of the sealed container, respectively.

또 상기 회전축의 내부에는 회전축의 회전에 따른 원심력을 이용하여 상기 오일저장공간의 오일을 상기 압축부와 구동부로 비산시켜 압축부 및 구동부의 윤활 및 냉각이 이루어지도록 하는 오일유로가 형성된다.In addition, an oil flow path is formed inside the rotary shaft to disperse the oil in the oil storage space to the compression unit and the driving unit by using centrifugal force according to the rotation of the rotation shaft to lubricate and cool the compression unit and the driving unit.

따라서 이러한 상기 구동부가 구동되며, 회전축을 통해 구동력을 전달받은 압축부가 가동되고, 이에 따라 흡입관을 통해 압축부로 전달된 냉매는 압축부에서 압축된 후 상기 토출관을 통해 밀폐용기 외부로 토출되며, 이러한 과정이 반복적으로 진행되면서 로터리압축기에 의한 냉매의 압축작용이 이루어진다. Therefore, the driving unit is driven, and the compression unit receiving the driving force through the rotating shaft is operated, and thus the refrigerant delivered to the compression unit through the suction pipe is compressed in the compression unit and then discharged to the outside of the sealed container through the discharge tube. As the process is repeatedly performed, the compression action of the refrigerant by the rotary compressor is performed.

또 이때 상기 오일저장공간의 오일은 회전축의 회전에 의한 원심력으로 상기 오일유로를 따라 압축부와 구동부로 전달되며 압축부와 구동부의 윤활 및 냉각작용이 수행되도록 하고, 이러한 오일은 중력에 의해 다시 오일저장공간으로 회수되며 상기 윤활 및 냉각작용을 반복적으로 수행하게 된다.In this case, the oil of the oil storage space is transmitted to the compression unit and the driving unit along the oil flow path by centrifugal force by the rotation of the rotating shaft, and the lubrication and cooling of the compression unit and the driving unit are performed, and such oil is again oiled by gravity. Recovered to the storage space is to perform the lubrication and cooling repeatedly.

그러나 이러한 종래 로터리압축기는 오일유로로부터 비산되는 오일이 상당량이 압축부로부터 토출되는 냉매와 함께 상기 토출관을 통해 밀폐용기 외부로 토출되는 구조를 갖기 때문에, 시간이 지남에 따라 밀폐용기 내부 오일량이 크게 줄게 되어 압축부와 구동부의 윤활작용 및 냉각작용을 제대로 수행할 수 없게 되는 문제점이 있었다. However, since the conventional rotary compressor has a structure in which a substantial amount of oil scattered from the oil flow passage is discharged out of the sealed vessel through the discharge tube together with the refrigerant discharged from the compression section, the amount of oil inside the sealed vessel increases over time. There was a problem that the reduction can not properly perform the lubrication and cooling action of the compression unit and the drive unit.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 토출관을 통해 밀폐용기 외부로 토출되는 오일의 토출량을 줄일 수 있도록 마련된 로터리압축기를 제공하는 것이다. The present invention is to solve such a problem, it is an object of the present invention to provide a rotary compressor provided to reduce the amount of oil discharged to the outside of the sealed container through the discharge tube.

이와 같은 목적을 달성하기 위한 본 발명에 따른 로터리압축기는 구동력을 발생시키는 구동부 및 상기 구동부의 구동력을 전달 받아 냉매를 압축하는 압축부가 내부에 마련되며 저면에 오일이 채워진 밀폐용기와, 상기 밀폐용기 저면의 오일을 상기 구동부와 압축부로 전달하도록 마련된 오일공급기구와, 상기 압축부에서 압축된 냉매를 상기 밀폐용기 외부로 토출시키도록 상기 밀폐용기에 설치된 토출관과, 상기 토출관을 통한 오일의 토출량을 저감시키도록 상기 토출관 내면에 형성된 오일토출억제부를 포함하는 것을 특징으로 한다. Rotary compressor according to the present invention for achieving the above object is provided with a driving unit for generating a driving force and a compression unit for compressing the refrigerant by receiving the driving force of the driving unit and the inside of the sealed container filled with oil on the bottom, the bottom of the sealed container An oil supply mechanism provided to deliver the oil to the drive unit and the compression unit, a discharge tube installed in the sealed container to discharge the refrigerant compressed by the compression unit to the outside of the sealed container, and an amount of oil discharged through the discharge tube. It characterized in that it comprises an oil discharge inhibiting portion formed on the inner surface of the discharge pipe to reduce.

그리고 상기 오일토출억제부는 요철형상을 갖도록 마련된 것을 특징으로 한다.And the oil discharge inhibiting portion is characterized in that it is provided to have an uneven shape.

또한, 상기 오일토출억제부는 나사산형태로 마련된 것을 특징으로 한다.In addition, the oil discharge inhibiting portion is characterized in that it is provided in the form of a screw thread.

또한, 상기 오일토출억제부는 상기 토출관의 입구 측에 마련된 것을 특징으로 한다. In addition, the oil discharge inhibiting portion is characterized in that provided on the inlet side of the discharge pipe.

또한, 상기 오일토출억제부는 상기 토출관의 길이방향을 따라 상호 이격된 복수의 구간에 걸쳐 마련된 것을 특징으로 한다.In addition, the oil discharge suppressing unit is characterized in that it is provided over a plurality of intervals spaced apart from each other along the longitudinal direction of the discharge pipe.

이하에서는 본 발명에 따른 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

본 발명에 따른 로터리압축기는 도 1 내지 도 2에 도시된 바와 같이, 원통형상으로 마련된 밀폐용기(10)를 통해 그 외관을 형성하게 되며, 이러한 밀폐용기(10)의 저면에는 소정량의 오일이 채워진 오일저장공간(11)이 형성된다.1 to 2, the rotary compressor according to the present invention forms the appearance through the sealed container 10 is provided in a cylindrical shape, a predetermined amount of oil is formed on the bottom of the sealed container 10 The filled oil storage space 11 is formed.

밀폐용기(10)의 내부 상측과 하측에는 각각 구동력을 발생시키는 구동부(20)와, 구동부(20)의 구동력을 전달 받아 냉매를 압축하는 압축부(30)가 마련되고, 상기 구동부(20)의 구동력을 압축부(30)로 전달하도록 구동부(20)와 압축부(30)는 회전축(12)을 통해 연결된다.A driving unit 20 for generating a driving force and a compression unit 30 for receiving a driving force of the driving unit 20 and compressing a refrigerant are provided at upper and lower sides of the sealed container 10, respectively. The driving unit 20 and the compression unit 30 are connected through the rotary shaft 12 to transmit the driving force to the compression unit 30.

또 상기 밀폐용기(10)의 일 측면에는 저압상태의 어큐뮬레이터(1) 측 냉매를 밀폐용기(10) 내부로 전달하도록 흡입관(13)이 결합되고, 밀폐용기(10)의 상면에는 상기 압축부(30)에서 압축된 냉매를 밀폐용기(10) 외부로 토출시키도록 마련된 토출관(14)이 결합되며, 이러한 토출관(14)은 입구(14a)가 형성된 하단이 밀폐용기(10) 내부로 소정길이 연장되도록 밀폐용기(10)에 설치된다.In addition, the suction tube 13 is coupled to one side of the sealed container 10 so as to transfer the refrigerant at the accumulator 1 side in the low pressure state into the sealed container 10, and the compression unit () is formed on the upper surface of the sealed container 10. The discharge tube 14 provided to discharge the refrigerant compressed in the 30 to the outside of the sealed container 10 is coupled, the discharge tube 14 has a lower end formed in the inlet 14a is predetermined inside the sealed container 10. It is installed in the sealed container 10 to extend the length.

상기 구동부(20)는 회전축(12)의 상부가 압입되며 자장에 의한 회전동력을 일으켜 상기 회전축(12)에 전달하는 회전자(21)와, 상기 회전자(21)와 소정간격 이격된 상태로 상기 회전자(21)의 외주를 둘러싸도록 마련되며 상기 밀폐용기(10)에 고정되는 고정자(22)를 구비한다.The drive unit 20 is the upper portion of the rotating shaft 12 is pressed in the rotor 21 to generate a rotational power by the magnetic field and to transmit to the rotating shaft 12, and the spaced apart from the rotor 21 at a predetermined interval It is provided to surround the outer circumference of the rotor 21 and has a stator 22 fixed to the closed container (10).

그리고 상기 압축부(30)는 상기 회전축(12)의 하부 일측에 형성된 편심부 (31)와, 상기 편심부(31) 외측에 삽입되도록 설치된 롤러피스톤(32)과, 상기 롤러피스톤(32)이 수용되는 압축실(33)을 형성하도록 마련된 실린더(34)와, 압축실(33)을 밀폐시키도록 실린더(34)의 상부와 하부에 각각 결합되어 회전축(12)을 지지하도록 마련된 상부베어링(35) 및 하부베어링(36)을 구비한다.And the compression unit 30 is the eccentric portion 31 formed on the lower side of the rotary shaft 12, the roller piston 32 is installed so as to be inserted into the eccentric portion 31 outside, and the roller piston 32 A cylinder 34 provided to form a compression chamber 33 to be accommodated, and an upper bearing 35 coupled to the upper and lower portions of the cylinder 34 so as to seal the compression chamber 33 to support the rotating shaft 12. ) And a lower bearing 36.

상기 실린더(34)의 일측과 타측에는 상기 흡입관(13)이 연결되도록 마련된 흡입포트(34a)와 압축실(33)에서 압축된 냉매가스를 압축실(33) 외부로 안내하는 토출포트(34b)가 각각 형성되는데, 상기 흡입포트(34a)와 토출포트(34b) 사이의 실린더(34)에는 베인홈(34c)이 형성되고, 이러한 베인홈(34c) 내부에는 그 선단이 롤러피스톤(32)의 외주에 접한 상태에서 롤러피스톤(32)의 회전시 그 후방 측에 마련된 탄성부재(37a)에 의해 압축실(33) 내부로 진퇴하며 압축실(33) 내부공간을 흡입포트(34a) 측의 흡입영역(33a)과 토출포트(34b) 측의 토출영역(33b)으로 구획시켜 토출영역(33b) 내부의 냉매가스가 압축될 수 있도록 하는 베인(37b)이 설치된다.At one side and the other side of the cylinder 34, a suction port 34a provided to connect the suction pipe 13 and a discharge port 34b for guiding the refrigerant gas compressed in the compression chamber 33 to the outside of the compression chamber 33. The vane groove 34c is formed in the cylinder 34 between the suction port 34a and the discharge port 34b, and a tip of the roller piston 32 is formed inside the vane groove 34c. When the roller piston 32 rotates in contact with the outer circumference, the elastic member 37a provided at the rear side thereof retreats into the compression chamber 33, and the compression chamber 33 is sucked into the suction port 34a. A vane 37b is provided which is partitioned into the discharge area 33b on the side of the area 33a and the discharge port 34b so that the refrigerant gas in the discharge area 33b can be compressed.

따라서 회전축(12)이 도2의 실선화살표 방향으로 회전되며 상기 롤러피스톤(32)이 압축실(33) 내부에서 편심회전하게 되면, 흡입포트(34a)를 통해 압축실(33) 내부로 흡입된 저압의 냉매가스가 점차 크기가 줄어들게 되는 압축실(33)의 토출영역(33b)에서 압축되어 고압상태가 되며 토출포트(34b)로 안내된다. Therefore, when the rotating shaft 12 is rotated in the direction of the solid arrow of FIG. 2 and the roller piston 32 is eccentrically rotated in the compression chamber 33, the suction shaft 34 is sucked into the compression chamber 33 through the suction port 34a. The low pressure refrigerant gas is compressed in the discharge area 33b of the compression chamber 33, which gradually decreases in size, becomes high pressure, and is guided to the discharge port 34b.

그리고 이렇게 토출포트(34b)로 안내된 압축냉매는 토출포트(34b)와 통하도록 상부베어링(35)에 형성된 토출공(35a)을 통해 밀폐용기(10) 내부로 토출된 후 충전된 상태로 상기 고정자(22)와 회전자(21) 사이를 거쳐 상기 토출관(14)을 통해 밀폐용기(10) 외부로 토출된다. 참고로 미설명 부호 35b는 토출공(35a)을 개폐하도 록 상부베어링(35) 상면에 설치된 토출밸브장치이고, 또 다른 미설명부호 38은 토출냉매의 소음을 저감시키도록 상부베어링(35) 상면에 복개된 토출머플러이다.Then, the compressed refrigerant guided to the discharge port 34b is discharged into the sealed container 10 through the discharge hole 35a formed in the upper bearing 35 so as to communicate with the discharge port 34b. It is discharged to the outside of the sealed container 10 through the discharge pipe 14 between the stator 22 and the rotor 21. For reference, reference numeral 35b denotes a discharge valve device installed on the upper surface of the upper bearing 35 to open and close the discharge hole 35a, and another reference numeral 38 denotes the upper surface of the upper bearing 35 to reduce noise of the discharge refrigerant. It is discharge muffler covered in.

또한, 본 발명에 따른 압축기에는 밀폐용기(10) 저면의 오일저장공간(11)의 오일을 상기 압축부(30)와 구동부(20)로 공급하여 압축부(30) 및 구동부(20)의 윤활 및 냉각작용이 수행되도록 하는 오일공급기구가 마련되는데, 본 실시예에 있어서 이러한 오일공급기구는 회전축(12) 내부에 형성된 오일유로(40)를 포함하여 구성되며, 이러한 오일유로(40)는 회전축(12)의 상하 길이방향을 따라 길게 형성된 주유로(41)와, 주유로(41)와 회전축(12)의 외면을 연통시키도록 주유로(41)로부터 반경방향으로 연장된 복수의 보조유로(42)를 포함하며, 상기 주유로(41)의 하단은 상기 오일저장공간(11)에 잠기도록 마련된다. In the compressor according to the present invention, the oil in the oil storage space 11 of the bottom surface of the sealed container 10 is supplied to the compression unit 30 and the driving unit 20 to lubricate the compression unit 30 and the driving unit 20. And an oil supply mechanism for performing a cooling operation. In this embodiment, the oil supply mechanism includes an oil flow passage 40 formed inside the rotation shaft 12, and the oil flow passage 40 includes a rotation shaft. A plurality of auxiliary flow passages extending in a radial direction from the oil passage 41 so as to communicate the oil passage 41 formed along the vertical length direction of the cylinder 12 with the oil passage 41 and the outer surface of the rotary shaft 12; And a lower end of the oil passage 41 is provided to be immersed in the oil storage space 11.

따라서 회전축(12)이 회전하게 되면 오일저장공간(11)의 오일은 이러한 회전축(12)의 원심력에 의해 주유로(41)의 내면을 따라 상부로 이동되고, 이렇게 상부로 이동된 오일은 주유로(41) 상단과 복수의 보조유로(42)를 통해 압축부(30)와 구동부(20)로 비산되며 윤활작용 및 냉각작용을 수행한 후 중력에 의해 다시 오일저장공간(11)으로 회수되어 이러한 윤활 및 냉각작용을 반복적으로 수행하게 된다.Therefore, when the rotary shaft 12 rotates, the oil in the oil storage space 11 is moved upward along the inner surface of the oil passage 41 by the centrifugal force of the rotary shaft 12, and thus the oil moved upward is supplied to the oil passage. (41) is scattered to the compression unit 30 and the drive unit 20 through the upper end and the plurality of auxiliary flow passages 42 and after the lubrication and cooling effect is carried out to the oil storage space 11 by gravity again Lubrication and cooling are performed repeatedly.

한편, 상기 오일유로(40)로부터 비산되며 압축부(30)와 구동부(20)로 전달되는 오일 중 일부는 압축실(33)로부터 밀폐용기(10) 내부로 토출되어 충전되었다가 밀폐용기(10) 외부로 토출되는 고압의 냉매가스에 섞여 상기 토출관(14)을 통해 밀폐용기(10) 외부로 토출되게 되는데, 도 3에 상세히 도시한 바와 같이, 상기 토출관(14)의 내면에는 이러한 오일이 밀폐용기(10) 외부로 토출되는 것을 억제하여 오 일에 의한 압축부(30) 및 구동부(20)의 윤활 및 냉각작용이 지속적으로 원활하게 수행될 수 있도록 요철형상을 갖는 오일토출억제부(14b)가 마련된다. 따라서 이러한 오일토출억제부(14b)에 의해 토출관(14) 내면을 따라 이동하는 오일의 흐름저항이 증대되면서 토출관(14)을 통한 오일의 토출량이 저감된다. Meanwhile, some of the oil scattered from the oil passage 40 and delivered to the compression unit 30 and the driving unit 20 is discharged from the compression chamber 33 into the sealed container 10 and filled, and then the sealed container 10. ) Is mixed with the high-pressure refrigerant gas discharged to the outside is discharged to the outside of the sealed container 10 through the discharge tube 14, as shown in detail in Figure 3, the inner surface of the discharge tube (14) The oil discharge suppressing portion having an uneven shape so as to suppress the discharge to the outside of the sealed container 10 so that the lubrication and cooling action of the compression unit 30 and the driving unit 20 by the oil can be continuously performed smoothly ( 14b) is provided. Therefore, the flow resistance of the oil moving along the inner surface of the discharge tube 14 by the oil discharge suppressing portion 14b is increased, and the discharge amount of the oil through the discharge tube 14 is reduced.

또 오일토출억제부(14b)의 요철형상은 토출관(14)의 내면을 따라 이동하게 되는 오일의 흐름저항을 증대 시킬 수 있는 범위 내에서 다양한 형태를 갖도록 마련될 수 있는데, 본 실시예에서 이러한 오일토출억제부(14b)는 나사산형태의 요철형상으로 마련된다.In addition, the uneven shape of the oil discharge suppressing portion 14b may be provided to have various shapes within a range capable of increasing the flow resistance of the oil moving along the inner surface of the discharge pipe 14. The oil discharge suppressing portion 14b is provided in a thread-shaped uneven shape.

또 이러한 오일토출억제부(14b)는 토출관(14)의 내면을 가공하여 토출관(14)과 일체로 형성되는 만큼, 별도의 부재로 제작하여 토출관(14)에 설치할 필요가 없으므로 가공이 용이하며 큰 비용이 추가되지도 않게 된다.In addition, since the oil discharge suppressing portion 14b is formed integrally with the discharge pipe 14 by processing the inner surface of the discharge pipe 14, it is not necessary to manufacture it as a separate member and install it in the discharge pipe 14. It is easy and no big cost is added.

또 상기 오일토출억제부(14b)는 본 실시예와 같이 가공의 편의를 위해 토출관(14)의 입구(14a) 측 내면에만 형성될 수도 있으나, 오일의 흐름 저항을 보다 증대시킬 수 있도록 상기 토출관(14)의 길이방향을 따라 상호 이격된 복수의 구간에 걸쳐 복수개로 형성되어도 무방하다.In addition, the oil discharge suppressing portion 14b may be formed only on the inner surface of the inlet 14a side of the discharge pipe 14 for the convenience of processing as in the present embodiment, but the discharge may be further increased to increase the flow resistance of the oil. It may be formed in plural over a plurality of sections spaced apart from each other along the longitudinal direction of the tube (14).

다음은 이와 같이 구성되는 본 발명에 따른 로터리압축기의 동작 및 이에 따른 작용효과에 관하여 설명하도록 한다.Next, the operation of the rotary compressor according to the present invention configured as described above and the effects thereof will be described.

먼저 구동부(20)의 구동력이 전달되어 회전축(12)이 회전하게 되면 편심부(31)와 함께 편심부(31) 외측에 결합된 롤러피스톤(32)이 압축실(33) 내부에서 편심회전하게 되고, 이때 상기 압축실(33)은 그 선단이 롤러피스톤(32)의 외주에 지 지된 상태에서 진퇴운동하는 베인(37b)에 의해 흡입영역(33a)과 토출영역(33b)으로 구획된다.First, when the driving force of the driving unit 20 is transmitted and the rotary shaft 12 rotates, the roller piston 32 coupled to the eccentric portion 31 outside together with the eccentric portion 31 causes the eccentric rotation in the compression chamber 33. In this case, the compression chamber 33 is divided into a suction region 33a and a discharge region 33b by vanes 37b which move forward and backward with their ends supported on the outer circumference of the roller piston 32.

따라서 이러한 롤러피스톤(32)의 편심회전운동과 베인(37b)의 진퇴운동을 통해 어큐뮬레이터(1) 측의 저압측 냉매가스는 흡입관(13)과 흡입포트(34a)를 경유하여 압축실(33) 내부로 흡입되고, 이렇게 압축실(33) 내부로 흡입된 냉매가스는 점차 축소되는 압축실(33)의 토출영역(33b)에서 고압의 상태가 되도록 압축되며, 토출영역(33b)의 냉매 압력이 소정압 이상으로 증가하게 되어 이러한 냉매의 압력에 의해 상기 토출밸브장치(35b)가 토출공(35a)을 개방시키게 되면, 토출영역(33b) 측 압축실(33)의 냉매는 상기 토출공(35a)을 통해 밀폐용기(10) 내부로 토출되고, 이러한 냉매는 밀폐용기(10) 내부에서 충전된 상태로 상기 토출관(14)을 통해 밀폐용기(10) 외부로 토출된다.Accordingly, through the eccentric rotation of the roller piston 32 and the advancing / removing movement of the vanes 37b, the low pressure refrigerant gas on the accumulator 1 side passes through the suction pipe 13 and the suction port 34a through the compression chamber 33. The refrigerant gas sucked into the inside of the compression chamber 33 is compressed to be in a high pressure state in the discharge region 33b of the compression chamber 33 which is gradually reduced, and the refrigerant pressure in the discharge region 33b is When the discharge valve device 35b opens the discharge hole 35a by the pressure of the refrigerant above the predetermined pressure, the refrigerant in the compression chamber 33 on the discharge region 33b side is discharged 35a. ) Is discharged into the sealed container 10, and the refrigerant is discharged to the outside of the sealed container 10 through the discharge tube 14 in a state of being charged in the sealed container 10.

또 이러한 냉매의 압축작용시 상기 오일저장공간(11)의 오일은 상기 회전축(12)의 회전에 따른 원심력에 의해 상기 주유로(41)의 내면을 따라 상부로 이동되고, 이렇게 상부로 이동된 오일은 주유로(41) 상단과 복수의 보조유로(42)를 통해 압축부(30)와 구동부(20)로 비산되며 압축부(30) 및 구동부(20)의 윤활 및 냉각작용을 수행한 후 중력에 의해 다시 오일정장공간(11)으로 회수되어 이러한 윤활 및 냉각작용을 반복적으로 수행하게 된다.In addition, during the compression of the refrigerant, the oil in the oil storage space 11 is moved upward along the inner surface of the oil passage 41 by centrifugal force due to the rotation of the rotary shaft 12, and thus the oil moved upward. Is scattered to the compression unit 30 and the driving unit 20 through the upper end of the oil passage 41 and the plurality of auxiliary passages 42, and then performs gravity lubrication and cooling of the compression unit 30 and the driving unit 20. It is recovered by the oil formal space 11 again to perform this lubrication and cooling action repeatedly.

그리고 이때 상기 오일유로(40)로부터 비산되며 압축부(30)와 구동부(20)로 전달되는 오일 중 일부는 압축실(33)로부터 밀폐용기(10) 내부로 토출되어 충전되었다가 밀폐용기(10) 외부로 토출되는 고압의 냉매가스에 석여 상기 토출관(14)을 통해 밀폐용기(10) 외부로 토출되게 되는데, 본 발명에 따른 로터리 압축기는 상기 오일토출억제부(14b)를 통해 토출관(14)의 내면을 따라 이동하는 오일의 흐름저항이 증대됨에 따라 토출관(14)을 통한 오일의 토출량이 저감되고, 이에 따라 오일에 의한 압축부(30) 및 구동부(20)의 윤활 및 냉각작용이 오랜 시간 동안 지속적으로 원활하게 수행될 수 있게 된다. At this time, some of the oil scattered from the oil passage 40 and delivered to the compression unit 30 and the driving unit 20 is discharged from the compression chamber 33 into the sealed container 10 and filled, and then the sealed container 10. The high pressure refrigerant gas discharged to the outside is discharged to the outside of the sealed container 10 through the discharge pipe 14, the rotary compressor according to the present invention is discharge pipe through the oil discharge suppressing portion (14b) As the flow resistance of the oil moving along the inner surface of 14 increases, the discharge amount of the oil through the discharge pipe 14 is reduced, thereby lubricating and cooling the compression part 30 and the driving part 20 by the oil. This can be done smoothly continuously for a long time.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 로터리압축기는 토출관의 내면에 마련된 상기 오일토출저지부에 의해 토출관을 통한 오일의 흐름저항이 증대됨에 따라 토출관을 통해 밀폐용기 외부로 토출되는 오일의 량이 줄어들게 되는 이점을 갖는다. As described in detail above, the rotary compressor according to the present invention is the oil discharged to the outside of the sealed container through the discharge pipe as the flow resistance of the oil through the discharge pipe is increased by the oil discharge stopper provided on the inner surface of the discharge pipe There is an advantage that the amount of the dose is reduced.

Claims (5)

구동력을 발생시키는 구동부 및 상기 구동부의 구동력을 전달 받아 냉매를 압축하는 압축부가 내부에 마련되며 저면에 오일이 채워진 밀폐용기와, 상기 밀폐용기 저면의 오일을 상기 구동부와 압축부로 전달하도록 마련된 오일공급기구와, 상기 압축부에서 압축된 냉매를 상기 밀폐용기 외부로 토출시키도록 상기 밀폐용기에 설치된 토출관과, 상기 토출관을 통한 오일의 토출량을 저감시키도록 상기 토출관 내면에 형성된 오일토출억제부를 포함하되, A driving unit for generating a driving force and a compression unit for compressing the refrigerant by receiving the driving force of the driving unit are provided therein, and a sealed container filled with oil on the bottom thereof, and an oil supply mechanism provided to transfer oil from the bottom of the sealed container to the driving unit and the compression unit. And an discharge pipe installed in the sealed container to discharge the refrigerant compressed by the compression unit to the outside of the sealed container, and an oil discharge suppressing part formed on an inner surface of the discharge pipe to reduce the discharge amount of oil through the discharge pipe. But 상기 오일토출억제부는 요철형상을 갖도록 마련된 것을 특징으로 하는 로터리압축기.The oil discharge suppressing portion is a rotary compressor, characterized in that it is provided to have a concave-convex shape. 삭제delete 제 1항에 있어서,The method of claim 1, 상기 오일토출억제부는 나사산형태로 마련된 것을 특징으로 하는 로터리압축기.The oil discharge suppressing portion is a rotary compressor, characterized in that provided in the form of a screw thread. 제 1항에 있어서,The method of claim 1, 상기 오일토출억제부는 상기 토출관의 입구 측에 마련된 것을 특징으로 하는 로터리압축기.And the oil discharge suppressing unit is provided at an inlet side of the discharge pipe. 제 1항에 있어서,The method of claim 1, 상기 오일토출억제부는 상기 토출관의 길이방향을 따라 상호 이격된 복수의 구간에 걸쳐 마련된 것을 특징으로 하는 로터리압축기.The oil discharge suppressing unit is provided over a plurality of sections spaced apart from each other along the longitudinal direction of the discharge tube.
KR1020040075201A 2004-09-20 2004-09-20 Rotary compressor KR100624020B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116188U (en) 1985-01-08 1986-07-22
KR960018015U (en) * 1994-11-25 1996-06-19 Oil discharge prevention device of hermetic compressor
KR970006721Y1 (en) * 1994-12-08 1997-07-02 엘지전자 주식회사 Closed compressor
KR20000001506U (en) * 1998-06-26 2000-01-25 전주범 Refrigeration oil discharge prevention device of compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116188U (en) 1985-01-08 1986-07-22
KR960018015U (en) * 1994-11-25 1996-06-19 Oil discharge prevention device of hermetic compressor
KR970006721Y1 (en) * 1994-12-08 1997-07-02 엘지전자 주식회사 Closed compressor
KR20000001506U (en) * 1998-06-26 2000-01-25 전주범 Refrigeration oil discharge prevention device of compressor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1020040075201 - 607412

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