KR20070073314A - Rotary compressor - Google Patents

Rotary compressor Download PDF

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Publication number
KR20070073314A
KR20070073314A KR1020060001070A KR20060001070A KR20070073314A KR 20070073314 A KR20070073314 A KR 20070073314A KR 1020060001070 A KR1020060001070 A KR 1020060001070A KR 20060001070 A KR20060001070 A KR 20060001070A KR 20070073314 A KR20070073314 A KR 20070073314A
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KR
South Korea
Prior art keywords
vane
cylinder
vane slot
discharge
oil
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Application number
KR1020060001070A
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Korean (ko)
Inventor
조경래
코르슈노프 안드레이
조성욱
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삼성전자주식회사
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Priority to KR1020060001070A priority Critical patent/KR20070073314A/en
Publication of KR20070073314A publication Critical patent/KR20070073314A/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
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • 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
    • F04C18/344—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 inner 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
    • 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
    • F04C29/028—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
    • 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

Abstract

A rotary compressor is provided to prevent refrigerant inside or outside a cylinder from permeating into a vane and a vane slot by forming an oil film between the vane and the vane slot, and realize smooth sliding motion of the vane. A rotary compressor includes a cylinder forming a compression chamber, and a vane(240) sliding in a vane slot(241) formed at a side of the cylinder for defining the compression chamber into suction and compression spaces(221a,221b). A discharge chamber has an upper flange coupled with an upper part of the cylinder and a discharge muffler reducing discharge noise of compressed refrigerant. Connection paths(250) are formed in the vane slot to be connected to the discharge chamber, so that oil of the discharge chamber is supplied via the connection path to the vane slot, forming an oil film between the vane slot and the vane.

Description

로터리 압축기{ROTARY COMPRESSOR}Rotary compressors {ROTARY COMPRESSOR}

도 1은 본 발명에 따른 로터리 압축기를 나타낸 단면도이다.1 is a cross-sectional view showing a rotary compressor according to the present invention.

도 2는 본 발명에 따른 로터리 압축기의 실린더 내부를 나타낸 단면도이다.2 is a cross-sectional view showing the inside of the cylinder of the rotary compressor according to the present invention.

도 3은 상기 도 2의 A부위를 확대하여 나타낸 도면이다.3 is an enlarged view illustrating a portion A of FIG. 2.

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

100 : 구동부 110 : 고정자100: drive unit 110: stator

120 : 회전자 130 : 회전축120: rotor 130: rotation axis

131 : 편심부 132 : 롤러131: eccentric portion 132: roller

200 : 압축부 210 : 상부플랜지200: compression unit 210: upper flange

211 : 토출머플러 212 : 토출챔버211 discharge muffler 212 discharge chamber

220 : 실린더 221 : 압축실220: cylinder 221: compression chamber

221a: 흡입공간 221b: 압축공간221a: suction space 221b: compression space

222 : 토출구 230 : 하부플랜지222: discharge port 230: lower flange

240 : 베인 241 : 베인슬롯240: vane 241: vaneslot

242 : 베인스프링 250 : 연통로242: vanes spring 250: communication path

300 : 케이싱 F : 오일필름300: casing F: oil film

본 발명은 로터리 압축기에 관한 것으로, 더욱 상세하게는 로터리 압축기의 실린더 내의 압축실을 냉매의 흡입공간과 압축공간으로 구분하는 베인의 씰링과 윤활을 위한 구조에 관한 것이다.The present invention relates to a rotary compressor, and more particularly, to a structure for sealing and lubricating vanes that divides a compression chamber in a cylinder of a rotary compressor into a suction space and a compression space of a refrigerant.

일반적으로 로터리 압축기는 고정자와 회전자의 전기 자기적 작용에 의해 회전하는 회전축에 편심부와 롤러가 결합하여 실린더 내의 압축실을 편심회전하면서 베인에 의해 구분된 흡입공간으로 냉매가 흡입되고 압축공간에서 냉매의 압축이 이루어지도록 하는 기기이다.In general, a rotary compressor has an eccentric portion and a roller coupled to a rotating shaft that is rotated by an electromagnetic action of a stator and a rotor, so that the refrigerant is sucked into the suction space separated by vanes while eccentrically rotating the compression chamber in the cylinder. It is a device to compress the refrigerant.

이러한 종래의 로터리 압축기는 대한민국 공개실용신안공보 제20-1999-011147호에 개시된 바와 같이 냉매의 흡입관과 토출관이 마련된 케이싱과 회전력을 발생시키는 구동부, 그리고 냉매의 흡입과 압축이 이루어지는 압축부로 이루어지고, 상기 구동부는 고정자와 회전자 및 상기 회전자에 결합되어 회전자와 함께 회전하는 회전축을 포함하고 회전축의 일측에는 회전축의 회전에 의해 편심회전을 하도록 편심되어 결합된 편심부와 롤러를 포함한다. 그리고 상기 압축부는 상기 편심부와 롤러의 편심회전이 이루어지는 압축실과 상기 압축실을 형성하는 실린더, 상기 실린더의 기밀을 유지시키기 위해 그 상하부에 각각 결합하는 상부플랜지와 하부플랜지, 그리고 압축실을 냉매의 흡입공간과 압축공간으로 구분하고 상기 롤러에 외접하여 롤러의 편심회전에 따라 상하 슬라이딩 운동을 하는 베인을 포함한다. 상기 베인은 실린더의 일측에 형성된 베인슬롯에 베인스프링과 함께 설치된다.This conventional rotary compressor consists of a casing provided with a suction pipe and a discharge pipe of a refrigerant, a driving unit for generating a rotational force, and a compression unit for suction and compression of the refrigerant, as disclosed in Korean Utility Model Publication No. 20-1999-011147. The drive unit includes a stator, a rotor, and a rotating shaft coupled to the rotor to rotate together with the rotor, and on one side of the rotating shaft, an eccentric portion and a roller are eccentrically coupled to perform eccentric rotation by the rotation of the rotating shaft. The compression unit may include a compression chamber in which eccentric rotation of the eccentric unit and a roller is performed, a cylinder forming the compression chamber, and an upper flange and a lower flange coupled to upper and lower portions of the refrigerant chamber to maintain airtightness of the cylinder. It is divided into a suction space and a compression space and includes a vane that circumscribes the roller and performs a vertical sliding movement according to the eccentric rotation of the roller. The vanes are installed together with a vane spring in a vane slot formed at one side of the cylinder.

이러한 로터리 압축기는 베인이 베인슬롯에서 슬라이딩하도록 구비되어 있기 때문에 베인과 베인슬롯 사이의 틈새로 실린더 내외부의 냉매가 침투하여 압축효율이 떨어지는 문제점이 있다. Since the rotary compressor is provided to slide in the vane slot, the refrigerant inside and outside the cylinder penetrates into the gap between the vane and the vane slot, thereby reducing the compression efficiency.

이러한 문제점을 해결하기 위해 상기 공개실용신안공보 제20-1999-011147호에 개시된 발명은 베인슬롯에 홈을 형성시켜 씰링부재를 삽입하여 베인과 베인슬롯사이의 틈새가 씰링되도록 하였다.In order to solve this problem, the invention disclosed in Korean Utility Model Publication No. 20-1999-011147 forms a groove in a vane slot to insert a sealing member to seal a gap between the vane and the vane slot.

그러나, 상기와 같이 씰링부재를 삽입할 경우 베인의 상하 왕복 운동이 자연스럽게 이루어지기 어렵고 윤활 오일을 공급하는 별도의 수단이 필요하게 되며, 씰링부재의 삽입으로 말미암아 또 다른 틈새를 유발시켜 결국 냉매의 누설이 발생하는 문제점이 있다.However, when the sealing member is inserted as described above, it is difficult to vertically reciprocate the vanes and a separate means for supplying lubricating oil is required.In addition, the insertion of the sealing member causes another gap to cause leakage of refrigerant. There is a problem that occurs.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 실린더 내외부의 냉매가 베인과 베인슬롯 사이의 틈새로 침투하는 것을 막고 베인의 슬라이딩 운동이 원활하게 이루어지도록 하기 위한 것이다.The present invention is to solve the above problems, an object of the present invention is to prevent the refrigerant inside and outside the cylinder penetrates into the gap between the vane and the vane slot and to smooth the sliding movement of the vane.

이와 같은 목적을 달성하기 위한 본 발명에 따른 로터리 압축기는, 압축실을 형성하는 실린더와, 상기 실린더의 일측에 마련된 베인슬롯에서 슬라이드하며 상기 압축실을 흡입공간과 압축공간으로 구획하는 베인과, 상기 실린더의 상부에 결합하는 상부플랜지와 압축된 냉매의 토출 소음을 저감시키는 토출머플러에 의해 형성된 토출챔버를 포함하고, 상기 베인슬롯에 상기 토출챔버와 연통되는 연통로를 형성시 켜 상기 토출챔버의 오일이 상기 연통로를 통하여 공급되어 상기 베인슬롯에 오일필름이 형성되도록 한 것을 특징으로 한다.Rotary compressor according to the present invention for achieving the above object, the cylinder forming the compression chamber, the vane slides in the vane slot provided on one side of the cylinder and divides the compression chamber into the suction space and the compression space, and A discharge chamber formed by an upper flange coupled to the upper portion of the cylinder and a discharge muffler for reducing the discharge noise of the compressed refrigerant, and forming a communication path in communication with the discharge chamber in the vane slot to form an oil in the discharge chamber. It is supplied through the communication path is characterized in that the oil film is formed in the vane slot.

또한, 상기 연통로는 상기 베인의 양 측면 중 적어도 어느 한 쪽의 베인슬롯에 형성된 것을 특징으로 한다.In addition, the communication path is characterized in that formed on at least one of the vane slots on both sides of the vane.

또한, 상기 연통로는 상기 흡입공간 측의 베인슬롯에만 형성된 것을 특징으로 한다.In addition, the communication path is characterized in that formed only in the vane slot of the suction space side.

또한, 상기 연통로는 상기 베인의 상측으로 오일이 공급되도록 상기 베인슬롯의 상측에 형성된 것을 특징으로 한다.In addition, the communication path is characterized in that formed on the upper side of the vane slot so that the oil is supplied to the upper side of the vane.

이하 본 발명에 따른 로터리 압축기의 바람직한 실시예를 도면을 참조하여 설명하기로 한다.Hereinafter, a preferred embodiment of a rotary compressor according to the present invention will be described with reference to the drawings.

도 1은 본 발명에 따른 로터리 압축기를 나타낸 단면도이고, 도 2는 본 발명에 따른 로터리 압축기의 실린더 내부를 나타낸 단면도이며, 도 3은 상기 도 2의 A부위를 확대하여 나타낸 도면이다.1 is a cross-sectional view showing a rotary compressor according to the present invention, Figure 2 is a cross-sectional view showing the inside of the cylinder of the rotary compressor according to the present invention, Figure 3 is an enlarged view showing a portion A of FIG.

도 1에 도시된 바와 같이 본 발명에 따른 로터리 압축기는 회전력을 제공하는 구동부(100), 상기 구동부(100)에 의한 회전력에 의해 냉매의 압축이 이루어지는 압축부(200), 그리고 상기 구동부(100)와 압축부(200)를 보호하고 그 내부공간을 밀폐시키며 냉매의 흡입관(400)과 냉매의 토출관(500)이 설치되어 있는 케이싱(300)으로 이루어져 있다.As shown in FIG. 1, the rotary compressor according to the present invention includes a driving unit 100 that provides rotational force, a compression unit 200 in which refrigerant is compressed by the rotational force by the driving unit 100, and the driving unit 100. And a casing 300 that protects the compression unit 200 and seals the internal space, and the suction pipe 400 of the refrigerant and the discharge tube 500 of the refrigerant are installed.

상기 구동부(100)는 자기장을 형성시키는 고정자(110)와, 상기 고정자(110)가 형성시킨 자기장에 의해 회전을 하는 회전자(120)와, 상기 회전자(120)에 결합 되어 같이 회전하는 회전축(130)을 포함한다.The driving unit 100 is a stator 110 for forming a magnetic field, a rotor 120 that rotates by a magnetic field formed by the stator 110, and a rotating shaft that is coupled to the rotor 120 and rotates together. 130.

상기 회전축(130)의 일측에는 편심되어 결합되는 편심부(131)와 그 외면에 롤러(132)가 결합되어 상기 회전축(130)의 회전에 의해 편심회전이 이루어진다.One side of the rotating shaft 130, the eccentric portion 131 is coupled to the eccentric and the roller 132 is coupled to the outer surface is eccentric rotation is made by the rotation of the rotating shaft 130.

상기 압축부(200)는 상기 롤러(132)의 편심회전에 의해 냉매의 압축이 이루어지는 압축실(221)과, 상기 압축실(221)이 마련된 실린더(220)와, 상기 실린더(220)의 상부에 설치되어 상기 압축실(221)의 기밀을 유지시키는 상부플랜지(210)와, 상기 실린더(220)의 하부에 설치되는 하부플랜지(230)를 포함한다.The compression unit 200 includes a compression chamber 221 in which the refrigerant is compressed by the eccentric rotation of the roller 132, a cylinder 220 in which the compression chamber 221 is provided, and an upper portion of the cylinder 220. It is installed in the upper flange 210 to maintain the airtight of the compression chamber 221, and the lower flange 230 is installed in the lower portion of the cylinder 220.

상기 상부플랜지(210)의 상부에는 상기 압축실(221)에서 압축되어 토출된 냉매의 토출소음을 저감시키는 토출머플러(211)가 설치되고, 상기 상부플랜지(210)의 상부와 상기 토출머플러(211)에 의해 형성되어 토출된 냉매가 잠시 머무르는 토출챔버(212)가 마련된다.A discharge muffler 211 is provided on the upper flange 210 to reduce discharge noise of the refrigerant compressed and discharged in the compression chamber 221, and an upper portion of the upper flange 210 and the discharge muffler 211 are provided. A discharge chamber 212 is formed in which the refrigerant discharged and discharged stays for a while.

도면번호 250은 후술할 베인슬롯과 상기 토출챔버(212)를 연통하는 연통로를 지칭하는데 이에 관하여는 도 2 및 도 3을 참조하여 설명하기로 한다.Reference numeral 250 denotes a communication path for communicating the vane slot and the discharge chamber 212 to be described later, which will be described with reference to FIGS. 2 and 3.

도 2는 실린더(220) 내부의 모습을 보여 주는 도면인데, 실린더(220)에 의해 형성된 압축실(221)과 그 내부에서 회전하는 회전축(130) 및 상기 회전축(130)에 편심되어 결합된 편심부(131)와 그 외면에 결합된 롤러(132)가 구비되고, 상기 실린더(220)의 일측에는 베인(240)이 설치되고 상기 베인(240)은 베인스프링(242)에 의해 상하 왕복 운동을 하도록 설치된다.2 is a view showing the inside of the cylinder 220, the compression chamber 221 formed by the cylinder 220 and the rotating shaft 130 and the rotating shaft 130 rotates therein and eccentrically coupled piece A core 131 and a roller 132 coupled to an outer surface thereof are provided, and a vane 240 is installed at one side of the cylinder 220, and the vane 240 is vertically reciprocated by a vane spring 242. To be installed.

상기 베인(240)은 상기 롤러(132)에 외접하여 압축실(221)을 냉매의 흡입이 일어나는 흡입공간(221a)과 냉매의 압축이 이루어지는 압축공간(221b)으로 구분한 다. 즉 롤러(132)가 화살표 방향으로 편심회전을 하면 상기 베인(240)에 의해 구획된 흡입공간(221a)은 넓어지게 되어 흡입압 분위기가 형성되어 흡입관(400)으로부터 냉매가 흡입되고, 상기 압축공간(221b)은 점차 축소되면서 그 내부의 냉매가 압축되고 그 압력이 커지면서 토출구(222)를 통해 토출된다.The vane 240 is external to the roller 132 and divides the compression chamber 221 into a suction space 221a through which the suction of refrigerant occurs and a compression space 221b through which the refrigerant is compressed. That is, when the roller 132 rotates eccentrically in the direction of the arrow, the suction space 221a partitioned by the vanes 240 is widened to form a suction pressure atmosphere so that refrigerant is sucked from the suction pipe 400 and the compression space is provided. 221b is gradually reduced, and the refrigerant therein is compressed and discharged through the discharge port 222 while the pressure thereof is increased.

이 때 토출되는 냉매는 상기 도 1에서 설명한 바 있는 토출챔버(212)로 유입된 후 토출관(500)으로 빠져 나가게 된다.At this time, the discharged refrigerant flows into the discharge chamber 212 as described above with reference to FIG. 1 and then exits into the discharge tube 500.

도 2에 도시된 바와 같이 상기와 같은 롤러(132)의 회전에 의해 상기 베인(240)은 상하 왕복 운동을 하게 되는데, 도 2의 A부분을 확대한 도 3을 살펴보면, 베인(240)이 설치된 부위인 베인슬롯(241)으로 흡입되는 냉매 또는 토출되는 압축 냉매의 일부가 누설될 수 있다. 이러한 냉매의 누설을 막기 위해 상기 베인(240)의 측면에 오일필름(F)을 형성시켜 오일에 의한 윤활과 냉매의 누설 방지 효과를 동시에 얻을 수 있다.As shown in FIG. 2, the vane 240 is vertically reciprocated by the rotation of the roller 132 as described above. Referring to FIG. 3 in which the portion A of FIG. 2 is enlarged, the vane 240 is installed. A portion of the refrigerant sucked into the vane slot 241 or the discharged compressed refrigerant may leak. In order to prevent leakage of the coolant, an oil film F may be formed on the side surface of the vane 240 to simultaneously obtain lubrication by oil and leakage prevention of the coolant.

이러한 오일필름(F)을 형성시키는 오일은 도 1에 도시된 상부플랜지(210)의 바닥에 저류하는 오일이다. 즉 냉매의 압축이 이루어질 때에는 보통 오일이 어느 정도 혼재하는데, 오일이 혼재된 상태에서 압축된 냉매가 토출챔버(212)로 토출되면 토출머플러(211)에 부딪히거나 토출챔버(211)의 공간에 의해 약간의 팽창이 일어나면서 그 속에 혼재된 오일의 일부가 분리되어 상부플랜지(210)의 바닥면에 고이게 된다. The oil forming the oil film F is oil stored in the bottom of the upper flange 210 shown in FIG. That is, when the refrigerant is compressed, oil is usually mixed to some extent. When the compressed refrigerant is discharged to the discharge chamber 212 in the mixed state of the oil, the oil is impinged on the discharge muffler 211 or in the space of the discharge chamber 211. As a result of some expansion, a portion of the oil mixed therein is separated and accumulated on the bottom surface of the upper flange 210.

이렇게 고여 있는 오일이 상기 토출챔버(212)로부터 상기 도 3에 도시된 베인슬롯(241)으로 연통되는 연통로(250)를 통해 베인슬롯(241)으로 공급되고 베인 (240)과 베인슬롯(241)과의 사이에 오일필름을 형성시킨다.The accumulated oil is supplied to the vane slot 241 through the communication path 250 communicated from the discharge chamber 212 to the vane slot 241 shown in FIG. 3 and the vane 240 and the vane slot 241. The oil film is formed between and.

즉, 도 1 및 도 3에 도시된 바와 같이 상부플랜지(210)의 바닥면에는 오일이 고여 있는데 연통로(250)의 입구는 매우 직경이 작은 구멍으로 되어 있어서 상기 상부플랜지(210)의 바닥면에 고여 있는 오일의 표면장력으로 말미암아 용이하게 연통로(250)를 따라 이동하지 않는데, 냉매가 압축되어 토출되면 그 토출되는 냉매에 의해 상기 토출챔버(212)의 내부는 고압의 분위기가 형성되고 압축실(221)은 저압의 분위기가 형성되어 그 압력차에 의해 오일이 상기 연통로(250)를 타고 베인슬롯(241)으로 흐르게 된다. 베인슬롯(241)에 도착한 오일은 베인(240)을 만나면서 베인(240)과 베인슬롯(241)의 벽면 사이에 오일필름(F)을 형성시키게 된다.That is, as shown in FIGS. 1 and 3, oil is accumulated on the bottom surface of the upper flange 210, but the inlet of the communication path 250 is a hole having a very small diameter, and thus the bottom surface of the upper flange 210. Due to the surface tension of the oil accumulated in the air does not easily move along the communication path 250, when the refrigerant is compressed and discharged, the interior of the discharge chamber 212 is formed by the discharged refrigerant to form a high-pressure atmosphere and compressed The chamber 221 has an atmosphere of low pressure so that oil flows through the communication path 250 to the vane slot 241 due to the pressure difference. The oil arriving at the vane slot 241 meets the vane 240 and forms an oil film F between the vane 240 and the wall surface of the vane slot 241.

상기 베인(240)과 베인슬롯(241) 사이에 형성된 오일필름(F)은 그 표면장력과 오일필름(F)의 밀도, 그리고 토출챔버(212)에 형성된 고압의 분위기 때문에 압축실(221)의 냉매가 베인(240)과 베인슬롯(241) 사이로 침투할 수 없게 된다. 또한 상기 오일필름(F)에 의해 베인(240)의 동작이 매우 부드러워지는 효과도 있다.The oil film F formed between the vanes 240 and the vane slots 241 may be formed in the compression chamber 221 due to its surface tension, the density of the oil film F, and the high pressure atmosphere formed in the discharge chamber 212. The refrigerant may not penetrate between vanes 240 and vaneslot 241. In addition, the operation of the vane 240 is very smooth by the oil film (F).

상기와 같은 오일필름(F)을 형성시키도록 오일을 수송하는 연통로(250)는 베인슬롯(241)의 양 벽면 중 어느 한 쪽만 형성될 수도 있고 양 벽면에 모두 형성될 수 있다.The communication path 250 for transporting oil to form the oil film F as described above may be formed only on one of both wall surfaces of the vane slot 241 or may be formed on both wall surfaces.

또한 상기 연통로(250)는 베인(240)의 상측에 오일이 공급되어 베인(240)의 측면 전체로 흐를 수 있도록 베인슬롯(241)의 상측에 형성된다.In addition, the communication path 250 is formed on the upper side of the vane slot 241 so that the oil is supplied to the upper side of the vane 240 and flows to the entire side surface of the vane 240.

상기와 같은 특징을 갖는 본 발명에 따른 로터리 압축기는 베인과 베인슬롯 사이에 오일필름을 형성시킴으로써 실린더 내외부의 냉매의 침투를 방지할 뿐 아니라 베인의 동작을 좀 더 부드럽게 하도록 윤활작용까지 할 수 있는 효과가 있다.The rotary compressor according to the present invention having the characteristics as described above may not only prevent the penetration of refrigerant inside and outside the cylinder by forming an oil film between the vane and the vane slot, but also effect the lubrication action to make the vane smoother. There is.

Claims (4)

압축실을 형성하는 실린더와, 상기 실린더의 일측에 마련된 베인슬롯에서 슬라이드하며 상기 압축실을 흡입공간과 압축공간으로 구획하는 베인과, 상기 실린더의 상부에 결합하는 상부플랜지와 압축된 냉매의 토출 소음을 저감시키는 토출머플러에 의해 형성된 토출챔버를 포함하고,A cylinder forming a compression chamber, a vane that slides in a vane slot provided on one side of the cylinder and divides the compression chamber into a suction space and a compression space, an upper flange coupled to an upper portion of the cylinder, and discharge noise of the compressed refrigerant A discharge chamber formed by a discharge muffler to reduce the 상기 베인슬롯에 상기 토출챔버와 연통되는 연통로를 형성시켜 상기 토출챔버의 오일이 상기 연통로를 통하여 공급되어 상기 베인슬롯에 오일필름이 형성되도록 한 것을 특징으로 하는 로터리 압축기.And a communication path communicating with the discharge chamber is formed in the vane slot so that oil in the discharge chamber is supplied through the communication path to form an oil film in the vane slot. 제1항에 있어서,The method of claim 1, 상기 연통로는 상기 베인의 양 측면 중 적어도 어느 한 쪽의 베인슬롯에 형성된 것을 특징으로 하는 로터리 압축기. The communication path is a rotary compressor, characterized in that formed in at least one of the vane slots on both sides of the vane. 제1항에 있어서,The method of claim 1, 상기 연통로는 상기 흡입공간 측의 베인슬롯에만 형성된 것을 특징으로 하는 로터리 압축기.And the communication path is formed only at the vane slot on the suction space side. 제1항 내지 제3항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 연통로는 상기 베인의 상측으로 오일이 공급되도록 상기 베인슬롯의 상 측에 형성된 것을 특징으로 하는 로터리 압축기.The communication path is a rotary compressor, characterized in that formed on the upper side of the vane slot so that oil is supplied to the upper side of the vane.
KR1020060001070A 2006-01-04 2006-01-04 Rotary compressor KR20070073314A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100010457A (en) * 2008-07-22 2010-02-01 엘지전자 주식회사 Compressor
KR20180091148A (en) * 2017-02-06 2018-08-16 엘지전자 주식회사 Rotary compressor
US20200057521A1 (en) * 2016-10-20 2020-02-20 Samsung Electronics Co., Ltd. Touch display including electrostatic discharge protection and electronic device comprising same
WO2022142336A1 (en) * 2020-12-29 2022-07-07 珠海格力电器股份有限公司 Flange structure, pump assembly, and fluid machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100010457A (en) * 2008-07-22 2010-02-01 엘지전자 주식회사 Compressor
KR101452512B1 (en) * 2008-07-22 2014-10-23 엘지전자 주식회사 Compressor
US8876494B2 (en) 2008-07-22 2014-11-04 Lg Electronics Inc. Compressor having first and second rotary member arrangement using a vane
US8894388B2 (en) 2008-07-22 2014-11-25 Lg Electronics Inc. Compressor having first and second rotary member arrangement using a vane
KR101528642B1 (en) * 2008-07-22 2015-06-16 엘지전자 주식회사 Compressor
US9062677B2 (en) 2008-07-22 2015-06-23 Lg Electronics Inc. Compressor
US9097254B2 (en) 2008-07-22 2015-08-04 Lg Electronics Inc. Compressor
US20200057521A1 (en) * 2016-10-20 2020-02-20 Samsung Electronics Co., Ltd. Touch display including electrostatic discharge protection and electronic device comprising same
US11042234B2 (en) * 2016-10-20 2021-06-22 Samsung Electronics Co., Ltd. Touch display including electrostatic discharge protection and electronic device comprising same
KR20180091148A (en) * 2017-02-06 2018-08-16 엘지전자 주식회사 Rotary compressor
WO2022142336A1 (en) * 2020-12-29 2022-07-07 珠海格力电器股份有限公司 Flange structure, pump assembly, and fluid machine

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