KR100265405B1 - Hermetic rotary compressor - Google Patents

Hermetic rotary compressor Download PDF

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Publication number
KR100265405B1
KR100265405B1 KR1019980002798A KR19980002798A KR100265405B1 KR 100265405 B1 KR100265405 B1 KR 100265405B1 KR 1019980002798 A KR1019980002798 A KR 1019980002798A KR 19980002798 A KR19980002798 A KR 19980002798A KR 100265405 B1 KR100265405 B1 KR 100265405B1
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KR
South Korea
Prior art keywords
oil
casing
refrigerant
cylinder
rotary compressor
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KR1019980002798A
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Korean (ko)
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KR19990068897A (en
Inventor
성춘모
Original Assignee
윤종용
삼성전자주식회사
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Priority to KR1019980002798A priority Critical patent/KR100265405B1/en
Publication of KR19990068897A publication Critical patent/KR19990068897A/en
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Publication of KR100265405B1 publication Critical patent/KR100265405B1/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
    • 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
    • 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
    • F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
    • 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
    • F04B39/16—Filtration; Moisture separation
    • 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
    • F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
    • 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
    • F04C29/026—Lubricant separation
    • 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

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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 hermetic rotary compressor is provided to prevent the oil leakage out of a casing via a refrigerant discharge tube for increasing the refrigerating and lubricating performance in the casing and the performance of the compressor. CONSTITUTION: A hermetic rotary compressor includes an oil filter(41) provided between a refrigerant discharge tube and a driving motor, and formed of net type filtering parts(45), an oil film restraining element such as a coil(47) for contacting the net type filtering elements for restraining the generation of an oil film in the filtering element, and a fixing part(43) formed in the shape of ring, connected to the filtering parts and the oil film restraining element and fixed to an inner wall surface of a casing(1).

Description

밀폐형 회전식 압축기{ }Hermetic Rotary Compressor {}

본 발명은, 밀폐형 회전식 압축기에 관한 것으로서, 보다 상세하게는, 케이싱내로부터 오일이 케이싱 외부로 유출되는 것을 억제시킬 수 있도록 한 압축기에 관한 것이다.TECHNICAL FIELD The present invention relates to a hermetic rotary compressor, and more particularly, to a compressor in which oil can be prevented from flowing out of the casing to the outside of the casing.

냉장고 및 에어컨과 같은 기기에는 냉동시스템이 구비되며, 일반적으로 이러한 냉동시스템은 냉매를 압축하여 고온고압의 기체상태로 만드는 압축기와, 압축기로부터 받은 냉매를 응축시키는 응축기와, 응축기로부터 냉매를 받아 냉매의 증발잠열을 이용하여 주위공기를 냉각시키는 증발기를 갖는다.Equipment such as refrigerators and air conditioners are provided with a refrigeration system, and generally, such a refrigeration system includes a compressor for compressing a refrigerant into a gaseous state of high temperature and high pressure, a condenser for condensing the refrigerant received from the compressor, and receiving a refrigerant from the condenser. It has an evaporator that cools the surrounding air using latent heat of evaporation.

도 3은 종래의 밀폐형 회전식 압축기의 단면도이다. 이 도면에 도시된 바와 같이, 압축기는 밀폐공간을 형성하고 있는 케이싱(101)내에 냉매를 압축하는 압축부(103)와, 압축부(103)를 구동시키는 구동모터(105)를 가진다. 케이싱(101)내의 저부영역에는 오일이 수용되는 오일수용부(107)가 형성되어 있으며, 케이싱(101)의 상부에는 압축된 냉매가 토출될 수 있도록 냉매토출관(109)이 설치되어 있다. 또한, 흡입관(111)을 통하여 후술할 실린더내로 기체상태의 냉매를 공급하기 위해 어큐뮬레이터(113)가 케이싱(101)의 외측벽에 설치되어 있다.3 is a cross-sectional view of a conventional hermetic rotary compressor. As shown in this figure, the compressor has a compression section 103 for compressing a refrigerant in a casing 101 forming a closed space, and a drive motor 105 for driving the compression section 103. An oil receiving portion 107 for accommodating oil is formed in the bottom region of the casing 101, and a refrigerant discharge pipe 109 is provided on the upper portion of the casing 101 to discharge the compressed refrigerant. In addition, an accumulator 113 is provided on the outer wall of the casing 101 to supply gaseous refrigerant into the cylinder to be described later through the suction pipe 111.

구동모터(105)는, 케이싱(101)의 내벽에 고정된 원통형의 고정자(115)와, 고정자(115)내에 회전가능하도록 수용된 회전자(117)를 가지며, 이 회전자(117)에는 고정자(115)의 축선과 동일하게 배치된 회전축(119)이 결합되어 있다.The drive motor 105 has a cylindrical stator 115 fixed to an inner wall of the casing 101 and a rotor 117 accommodated in the stator 115 so as to be rotatable, and the rotor 117 includes a stator ( The rotating shaft 119 which is arrange | positioned similarly to the axis of 115 is engaged.

회전축(119)은 오일수용부(107)까지 하향연장되어 있으며, 회전축(119)의 하부영역에는 편심부(121)가 형성되어 있다. 회전축(119)의 하단영역은 오일수용부(107)에 잠겨있도록 설치되며, 오일수용부(107)에 잠겨있는 회전축(119)에는 오일픽업베인(123)이 장착되어 있다. 오일픽업베인(123)은 회전축(119)과 연동 회전하며 오일수용부(107)에 수용된 오일을 상향급송하여 부품들의 마찰부위에 오일을 공급하게 된다.The rotating shaft 119 is extended downward to the oil receiving portion 107, and the eccentric portion 121 is formed in the lower region of the rotating shaft 119. The lower region of the rotating shaft 119 is installed to be locked to the oil receiving part 107, and the oil picking vane 123 is mounted to the rotating shaft 119 locked to the oil receiving part 107. The oil pick-up vane 123 rotates in coordination with the rotating shaft 119 and supplies oil to the friction part of the parts by upwardly feeding oil contained in the oil receiving part 107.

구동모터(105)로부터 냉매를 압축하기 위해 구동력을 전달받는 압축부(103)는 원통형상의 실린더(125)와, 실린더(125)내에 회전가능하도록 결합되는 로울러(127)를 가지며, 실린더(125)의 상부 및 하부에는 실린더(125)의 상하단부를 차단하도록 상부플랜지(129)와 하부플랜지(131)가 각각 결합되어 있다.The compression unit 103 that receives the driving force to compress the refrigerant from the drive motor 105 has a cylindrical cylinder 125, a roller 127 rotatably coupled to the cylinder 125, and the cylinder 125. An upper flange 129 and a lower flange 131 are respectively coupled to the upper and lower portions of the cylinder 125 to block the upper and lower ends of the cylinder 125.

실린더(125)의 내부에는 회전축(119)의 편심부(121)가 위치되며, 편심부(121)에는 로울러(127)가 결합되어 실린더(125)의 내벽면을 따라 회전하게 된다. 실린더(125) 내벽면의 일측에는 실린더(125)의 내벽면과 실린더(125)의 외측면을 연통하는 흡입구(133)가 형성되어 있고, 이에 인접하여 압축된 냉매를 토출하기 위한 도시하지 않은 토출포트가 형성되어 있다. 그리고, 이들 흡입구(133)와 토출포트 사이에는 실린더(125)의 내벽면으로부터 돌출되어 돌출단부영역이 로울러(127)의 외주면에 접촉되어 실린더(125) 내부를 흡입측과 토출측으로 구획하는 도시하지 않은 베인이 설치된다.The eccentric portion 121 of the rotation shaft 119 is positioned inside the cylinder 125, and the roller 127 is coupled to the eccentric portion 121 to rotate along the inner wall surface of the cylinder 125. A suction port 133 is formed at one side of the inner wall surface of the cylinder 125 so as to communicate the inner wall surface of the cylinder 125 with the outer surface of the cylinder 125, and discharges not shown for discharging the compressed refrigerant adjacent thereto. A port is formed. In addition, between the suction port 133 and the discharge port, it protrudes from the inner wall surface of the cylinder 125 so that the protruding end region is in contact with the outer circumferential surface of the roller 127 to divide the inside of the cylinder 125 into the suction side and the discharge side. Vanes are installed.

실린더(125)의 상단 개구부를 차단하기 위해 설치되는 상부플랜지(129)에는 실린더(125)의 토출포트와 대응되는 위치에 도시하지 않은 토출밸브가 마련되어 있고, 상부플랜지(129)의 상단에는 냉매가 통과하는 복수의 토출공(137)이 형성된 머플러(139)가 설치되어 있다.The upper flange 129 which is installed to block the upper opening of the cylinder 125 is provided with a discharge valve (not shown) corresponding to the discharge port of the cylinder 125, the refrigerant is at the top of the upper flange 129 The muffler 139 in which the some discharge hole 137 which passed is formed is provided.

이러한 구성에 의하여, 회전축(119)이 회전을 하게 되면, 어큐뮬레이터(113)에서 흡입관(111)을 통해 기체상태의 냉매가 실린더(125)내로 유입된다. 유입된 냉매는 로울러(127)가 실린더(125)의 내벽을 회전함에 따라 압축되어 토출포트를 통하여 실린더(125) 외부로 토출되고, 토출된 냉매는 상부플랜지(129)에 있는 토출밸브를 통과하여 머플러(139)를 지나 상향 토출된다. 그리고, 오일은 오일픽업베인(123)의 회전에 의해 오일수용부(107)로부터 상향급송되어 회전운동하는 부품들의 각 마찰부위에 윤활을 위해 공급되고 일부 오일은 회전축(119)의 원심력에 의해 비산되어 케이싱내로 퍼지게 된다.By this configuration, when the rotating shaft 119 is rotated, the gaseous refrigerant is introduced into the cylinder 125 through the suction pipe 111 in the accumulator 113. The introduced refrigerant is compressed as the roller 127 rotates the inner wall of the cylinder 125 and discharged to the outside of the cylinder 125 through the discharge port, and the discharged refrigerant passes through the discharge valve in the upper flange 129. It is discharged upward through the muffler 139. Then, the oil is fed upward from the oil receiving portion 107 by the rotation of the oil pick-up vane 123 and supplied for lubrication to each friction part of the rotating parts, and some oil is scattered by the centrifugal force of the rotating shaft 119. And spread into the casing.

그런데, 이러한 종래의 압축기에 있어서는, 케이싱(101)내에 퍼져있는 오일이 압축된 냉매와 함께 케이싱(101) 외부로 유출될 수가 있다. 이렇게 케이싱(101)내의 오일이 유출되게 되면, 케이싱(101)내의 회전운동을 하는 부품들의 냉각 및 윤활이 원활하지 못할 수 있고, 케이싱(101)의 외부로 유출된 오일이 냉매와 함께 냉동사이클내를 순환하여 다시 실린더(125)내로 유입될 경우 압축기의 성능을 저해시킬 수 있는 문제점이 있을 수 있다.By the way, in such a conventional compressor, oil spreading in the casing 101 can flow out of the casing 101 together with the compressed refrigerant. When the oil in the casing 101 flows out in this way, the cooling and lubrication of the parts that rotate in the casing 101 may not be smooth, and the oil leaked out of the casing 101 together with the refrigerant in the refrigerating cycle. There may be a problem that can hinder the performance of the compressor when the circulation is introduced into the cylinder 125 again.

따라서, 본 발명의 목적은, 케이싱의 내부로부터 오일이 냉동싸이클로 유출되는 것을 억제시킬 수 있는 압축기를 제공하는 것이다.It is therefore an object of the present invention to provide a compressor that can suppress the outflow of oil from the interior of the casing to the refrigeration cycle.

도 1은 본 발명에 따른 밀폐형 회전식 압축기의 단면도,1 is a cross-sectional view of a hermetic rotary compressor according to the present invention;

도 2는 도 1의 오일필터의 사시도,2 is a perspective view of the oil filter of FIG.

도 3은 도 2의 단면도,3 is a cross-sectional view of FIG.

도 4는 종래의 밀폐형 회전식 압축기의 단면도이다.4 is a cross-sectional view of a conventional hermetic rotary compressor.

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

1 : 케이싱 3 : 압축부1: casing 3: compression part

5 : 구동부 7 : 오일수용부5 driving part 7 oil receiving part

9 : 냉매토출관 19 : 회전축9: refrigerant discharge pipe 19: rotating shaft

21 : 편심부 25 : 실린더21: eccentric 25: cylinder

27 : 로울러 41 : 오일필터27: roller 41: oil filter

43 : 여과부 47 : 코일43: filtration unit 47: coil

53 : 부시53: bush

상기 목적은, 본 발명에 따라, 냉매흡입관과 냉매토출관이 연통되도록 결합되는 케이싱과, 상기 냉매흡입관으로부터의 냉매를 압축하는 회전식 압축부와, 상기 압축부를 구동시키는 구동모터를 갖는 밀폐형 회전식 압축기에 있어서, 상기 냉매토출관과 상기 구동부 사이에 마련된 망상체의 여과부와; 상기 망상체의 여과부와 상호접촉하여 상기 여과부에 형성되는 유막의 생성을 억제하는 유막억제부재와; 상기 여과부와 상기 유막억제부재에 연결되어 상기 케이싱의 내벽면에 고정되는 고정부를 갖는 것을 특징으로 하는 밀폐형 회전식 압축기에 의해 달성된다.The object of the present invention is a hermetic rotary compressor having a casing coupled to communicate with a refrigerant suction pipe and a refrigerant discharge pipe, a rotary compression unit for compressing a refrigerant from the refrigerant suction tube, and a drive motor for driving the compression unit. A filter unit of the network provided between the refrigerant discharge pipe and the drive unit; An oil film suppressing member which is in contact with the filtering part of said network and suppresses the formation of an oil film formed in said filtering part; It is achieved by a hermetic rotary compressor characterized in that it has a fixing part connected to the filtration unit and the oil film suppressing member fixed to the inner wall surface of the casing.

여기서, 상기 유막억제부재는 코일인 것이 효과적이며, 상기 고정부는 고리상으로 형성된 것이 바람직하다.Here, it is preferable that the oil film suppressing member is a coil, and the fixing part is formed in a ring shape.

이하에서는 첨부도면을 참조하여 본 발명에 대해 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

이들 도면에 도시된 바와 같이, 압축기는 밀폐공간을 형성하고 있는 케이싱(1)내에 냉매를 압축하는 압축부(3)와, 압축부(3)를 구동시키는 구동모터(5)를 가진다. 케이싱(1)내의 저부영역에는 오일이 수용되는 오일수용부(7)가 형성되어 있으며, 케이싱(1)의 상부영역에는 압축된 냉매가 토출될 수 있도록 냉매토출관(9)이 설치되어 있다. 또한, 흡입관(11)을 통하여 후술할 실린더내로 기체상태의 냉매를 공급하기 위해 어큐뮬레이터(13)가 케이싱(1)의 외측벽에 설치되어 있다.As shown in these figures, the compressor has a compression section 3 for compressing the refrigerant in the casing 1 forming a closed space, and a drive motor 5 for driving the compression section 3. An oil receiving portion 7 for accommodating oil is formed in the bottom region of the casing 1, and a refrigerant discharge pipe 9 is provided in the upper region of the casing 1 to discharge the compressed refrigerant. In addition, an accumulator 13 is provided on the outer wall of the casing 1 to supply gaseous refrigerant into the cylinder to be described later through the suction pipe 11.

구동모터(5)는, 케이싱(1)의 내벽에 고정되게 설치된 원통형의 고정자(15)와, 고정자(15)내에 회전가능하도록 수용된 회전자(17)를 가지며, 이 회전자(17)에는 고정자(15)의 축선과 동일하게 배치된 회전축(19)이 결합되어 있다.The drive motor 5 has a cylindrical stator 15 fixed to an inner wall of the casing 1 and a rotor 17 accommodated in the stator 15 so as to be rotatable. The stator 17 has a stator. The rotating shaft 19 arrange | positioned similarly to the axis line of 15 is engaged.

회전축(19)은 오일수용부(7)까지 하향연장되어 있으며, 회전축(19)의 하부영역에는 편심부(21)가 형성되어 있다. 회전축(19)의 하단영역은 오일수용부(7)에 잠겨있도록 설치되며, 오일수용부(7)에 잠겨있는 회전축(19)에는 오일픽업베인(23)이 일체로 회전가능하도록 되어 있다. 오일픽업베인(23)은 오일수용부(7)에 수용된 오일을 상향급송하여 부품들의 마찰부위에 오일을 공급한다.The rotating shaft 19 is extended downward to the oil receiving portion 7, and the eccentric portion 21 is formed in the lower region of the rotating shaft 19. The lower end region of the rotating shaft 19 is installed to be locked to the oil receiving part 7, and the oil pick-up vane 23 is rotatably integrated in the rotating shaft 19 locked to the oil receiving part 7. The oil pick-up vane 23 supplies oil to the friction part of the parts by upwardly feeding the oil contained in the oil receiving part 7.

구동모터(5)로부터 냉매를 압축하기 위해 구동력을 전달받는 압축부(3)는 원통형상의 실린더(25)와, 실린더(25)내에 회전가능하도록 결합되는 로울러(27)를 가지며, 실린더(25)의 상부 및 하부에는 실린더(25)의 상하단부를 차단하도록 상부플랜지(29)와 하부플랜지(31)가 각각 결합되어 있다.The compression unit 3 receiving the driving force to compress the refrigerant from the drive motor 5 has a cylindrical cylinder 25 and a roller 27 rotatably coupled to the cylinder 25, the cylinder 25 An upper flange 29 and a lower flange 31 are respectively coupled to the upper and lower portions of the cylinder 25 to block the upper and lower ends of the cylinder 25.

실린더(25)의 내부에는 회전축(19)의 편심부(21)가 위치되며, 편심부(21)에는 로울러(27)가 결합되어 실린더(25)의 내벽면을 따라 회전하게 된다. 실린더(25) 내벽면의 일측에는 실린더(25)의 내벽면과 실린더(25)의 외측면을 연통하는 흡입구(33)가 형성되어 있고, 이에 인접하여, 압축된 냉매를 토출하기 위한 도시하지 않은 토출포트가 형성되어 있다. 그리고, 이들 흡입구(33)와 토출포트 사이에는 실린더(25)의 내벽면으로부터 돌출되어 돌출단부영역이 로울러(27)의 외주면에 접촉되어 실린더(25) 내부를 흡입측과 토출측으로 구획하는 도시하지 않은 베인이 설치된다.An eccentric portion 21 of the rotating shaft 19 is positioned inside the cylinder 25, and a roller 27 is coupled to the eccentric portion 21 to rotate along the inner wall surface of the cylinder 25. On one side of the inner wall surface of the cylinder 25, a suction port 33 is formed which communicates the inner wall surface of the cylinder 25 with the outer surface of the cylinder 25, and adjacent to this, not shown for discharging the compressed refrigerant. The discharge port is formed. In addition, the inlet 33 and the discharge port protrude from the inner wall surface of the cylinder 25 so that the protruding end region contacts the outer circumferential surface of the roller 27 so as to partition the inside of the cylinder 25 into the suction side and the discharge side. Vanes are installed.

실린더(25)의 상단 개구부를 차단하기 위해 설치되는 상부플랜지(29)에는 실린더(25)의 토출포트와 대응되는 위치에 도시하지 않은 토출밸브가 마련되어 있고, 상부플랜지(29)의 상단에는 냉매가 통과하는 복수의 토출공(37)이 형성된 머플러(39)가 설치되어 있다.The upper flange 29 provided to block the upper opening of the cylinder 25 is provided with a discharge valve (not shown) at a position corresponding to the discharge port of the cylinder 25, and the refrigerant at the upper end of the upper flange 29 The muffler 39 in which the some discharge hole 37 which passed is formed is provided.

한편, 케이싱(1)의 상부에 설치된 냉매토출관(9)과 구동모터(5) 사이에는 오일필터(41)가 설치되어 있다. 오일필터(41)는 고리형상으로 케이싱(1)의 내벽면에 용접과 같은 방법으로 결합되는 금속재질의 고정부(43)와, 고정부에 연결된 망상체의 여과부(45)와, 여과부(45)와 상호접촉하여 여과부(45)의 망상에 발생하는 유막의 생성을 억제시키는 금속재질의 코일(47)을 가지며, 여과부(45)는 코일(47)을 상하로 싸도록 설치되어 있다. 또한, 오일필터(41)에는 케이싱(1) 상부 외측에 설치되어 전원을 공급하는 터미널(49)로부터 연결된 전원리드선(51)이 통과할 수 있는 전원리드선 통과를 위한 원통형의 부시(53)가 마련되어 있다.On the other hand, an oil filter 41 is provided between the refrigerant discharge pipe 9 and the drive motor 5 provided on the casing 1. The oil filter 41 has a ring-shaped fixing portion 43 of a metal material that is coupled to the inner wall surface of the casing 1 in a ring-like manner, a filtering portion 45 of a network connected to the fixing portion, and a filtering portion ( 45 has a metal coil 47 which is in contact with each other to suppress the generation of an oil film generated on the mesh of the filtering part 45, and the filtering part 45 is provided to cover the coil 47 up and down. . In addition, the oil filter 41 is provided with a cylindrical bush 53 for passing through a power lead wire through which a power lead wire 51 connected from a terminal 49 that is installed outside the casing 1 to supply power can pass therethrough. have.

이와 같은 구성에 의하여, 회전축(19)이 회전을 하게 되면, 어큐뮬레이터(13)에서 흡입관(11)을 통해 기체상태의 냉매가 실린더(25)내로 유입된다. 유입된 냉매는 로울러(27)가 실린더(25)의 내벽을 따라 회전함에 따라 압축되어 일측에 마련된 토출포트를 통하여 상부플랜지(29)에 있는 토출밸브를 통과하게 되고, 통과한 냉매는 머플러(39)의 토출공(37)을 통해 상향 이동하게 된다. 그리고, 오일픽업베인(23)에 의해 오일수용부(7)로부터 상향급송되어 회전축(19)의 회전에 의해 비산됨에 따라 케이싱(1)내에 퍼져있는 오일도 압축된 냉매와 함께 케이싱(1)의 상부영역으로 이동하게 된다. 이때, 냉매는 오일필터(41)를 통과하여 냉매토출관(9)으로 토출되지만, 오일은 오일필터(41)의 여과부(45)에 부딪히게 되며 오일에 의해 여과부(45)의 망상에 생성된 오일 유막은 상호접촉되어 있는 코일(47)에 의해 억제된다. 이에 따라, 오일필터(41)에 의해 오일이 오일수용부(7)로 복귀하게 된다.By such a configuration, when the rotating shaft 19 rotates, the gaseous refrigerant flows into the cylinder 25 through the suction pipe 11 in the accumulator 13. The introduced refrigerant is compressed as the roller 27 rotates along the inner wall of the cylinder 25 and passes through the discharge valve in the upper flange 29 through the discharge port provided on one side, and the refrigerant passed through is the muffler 39 It moves upward through the discharge hole (37). As the oil pick-up vane 23 is upwardly transported from the oil receiving portion 7 and scattered by the rotation of the rotary shaft 19, the oil spreading in the casing 1 is also compressed in the casing 1 together with the compressed refrigerant. It moves to the upper area. At this time, the refrigerant passes through the oil filter 41 and is discharged to the refrigerant discharge pipe 9, but the oil hits the filtration unit 45 of the oil filter 41 and the oil on the mesh of the filtration unit 45 by the oil. The resulting oil film is suppressed by the coils 47 which are in contact with each other. Accordingly, the oil is returned to the oil receiving portion 7 by the oil filter 41.

이와 같이, 냉매토출관과 구동모터 사이에 마련된 망상체의 여과부와, 이 여과부와 상호접촉하여 여과부에 형성되는 유막의 생성을 억제하는 유막억제부재와, 여과부와 유막억제부재에 연결되어 케이싱의 내벽면에 고정되는 고정부를 마련함으로써, 냉매토출관을 통하여 케이싱내의 오일이 케이싱 외부로 유출되는 것을 억제시킬 수 있다.In this way, it is connected to the filtration unit of the network provided between the refrigerant discharge pipe and the drive motor, an oil film suppressing member which is in contact with the filtration unit to suppress the formation of the oil film formed in the filtration unit, and the filtration unit and the oil film suppressing member By providing a fixing part fixed to the inner wall surface of the casing, it is possible to suppress the oil in the casing from flowing out of the casing through the refrigerant discharge pipe.

이상에서 설명한 바와 같이, 본 발명에 따르면, 냉매토출관을 통해 케이싱내의 오일이 케이싱 외부로 유출되는 것을 억제시킴에 따라 케이싱내의 냉각 및 윤활성능 그리고 압축기의 성능을 높일 수 있는 압축기가 제공된다.As described above, according to the present invention, by suppressing the oil in the casing out of the casing through the refrigerant discharge pipe is provided a compressor that can increase the cooling and lubrication performance in the casing and the performance of the compressor.

Claims (3)

냉매흡입관과 냉매토출관이 연통되도록 결합되는 케이싱과, 상기 냉매흡입관으로부터의 냉매를 압축하는 회전식 압축부와, 상기 압축부를 구동시키는 구동모터를 갖는 밀폐형 회전식 압축기에 있어서,In a hermetic rotary compressor having a casing coupled to communicate with a refrigerant suction tube and a refrigerant discharge tube, a rotary compression unit for compressing a refrigerant from the refrigerant suction tube, and a drive motor for driving the compression unit. 상기 냉매토출관과 상기 구동모터 사이에 마련된 망상체의 여과부와;A filtering part of the network body provided between the refrigerant discharge pipe and the driving motor; 상기 망상체의 여과부와 상호접촉하여 상기 여과부에 형성되는 유막의 생성을 억제하는 유막억제부재와;An oil film suppressing member which is in contact with the filtering part of said network and suppresses the formation of an oil film formed in said filtering part; 상기 여과부와 상기 유막억제부재에 연결되어 상기 케이싱의 내벽면에 고정되는 고정부를 갖는 것을 특징으로 하는 밀폐형 회전식 압축기.Sealed rotary compressor characterized in that it has a fixed portion connected to the filtration unit and the oil film suppressing member fixed to the inner wall surface of the casing. (정정)(correction) 제 1항에 있어서,The method of claim 1, 상기 유막억제부재는 코일인 것을 특징으로 하는 밀폐형 회전식 압축기.The oil film suppression member is a closed rotary compressor, characterized in that the coil. 제 2항에 있어서,The method of claim 2, 상기 고정부는 고리상으로 형성된 것을 특징으로 하는 밀폐형 회전식 압축기.The fixed type rotary compressor, characterized in that formed in a ring shape.
KR1019980002798A 1998-02-02 1998-02-02 Hermetic rotary compressor KR100265405B1 (en)

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