KR19980010320U - Oil lubrication structure of hermetic compressor - Google Patents

Oil lubrication structure of hermetic compressor Download PDF

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Publication number
KR19980010320U
KR19980010320U KR2019960023714U KR19960023714U KR19980010320U KR 19980010320 U KR19980010320 U KR 19980010320U KR 2019960023714 U KR2019960023714 U KR 2019960023714U KR 19960023714 U KR19960023714 U KR 19960023714U KR 19980010320 U KR19980010320 U KR 19980010320U
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KR
South Korea
Prior art keywords
oil
crankshaft
compressor
hermetic compressor
hermetic
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Application number
KR2019960023714U
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Korean (ko)
Inventor
오원식
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구자홍
엘지전자 주식회사
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Application filed by 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR2019960023714U priority Critical patent/KR19980010320U/en
Priority to CN97115076A priority patent/CN1100207C/en
Priority to JP9210605A priority patent/JPH1082366A/en
Priority to US08/905,944 priority patent/US5941346A/en
Publication of KR19980010320U publication Critical patent/KR19980010320U/en

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    • 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
    • F04B39/02Lubrication
    • F04B39/0223Lubrication characterised by the compressor type
    • F04B39/023Hermetic compressors
    • F04B39/0238Hermetic compressors with oil distribution channels
    • F04B39/0246Hermetic compressors with oil distribution channels in the rotating shaft
    • F04B39/0253Hermetic compressors with oil distribution channels in the rotating shaft using centrifugal force for transporting the oil

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

Abstract

본 고안은 밀폐형 압축기의 오일급유구조에 관한 것으로서, 크랭크 샤프트의 회전원심력이 상부로 작용하도록 크랭크 샤프트의 내경에 나선형의 오일유로홈을 형성하여 밀폐형 압축기의 저속 운전시에도 오일유로홈을 타고 밀폐용기내에 담겨있는 오일이 원활하게 흡상되어 크랭크 샤프트의 상부에 형성된 핀부를 통해 비산하여 압축기의 윤활부로 오일을 급유하여 압축기의 마멸을 저감시켜 밀폐형 압축기의 신뢰성을 향상시키도록 한 것이다.The present invention relates to an oil lubrication structure of a hermetic compressor, and forms a spiral oil channel groove in the inner diameter of the crank shaft so that the rotational centrifugal force of the crank shaft acts as an upper portion, so that the oil container is carried in the oil passage groove even at low speed operation of the hermetic compressor. The oil contained in the oil is smoothly sucked up and scattered through the pin formed on the top of the crankshaft to supply oil to the lubrication part of the compressor to reduce the wear of the compressor to improve the reliability of the hermetic compressor.

Description

밀폐형 압축기의 오일급유구조Oil lubrication structure of hermetic compressor

제 1 도는 종래 밀폐형 압축기의 종단면도.1 is a longitudinal sectional view of a conventional hermetic compressor.

제 2 도는 본 고안 밀폐형 압축기의 종단면도.2 is a longitudinal sectional view of the hermetic compressor of the present invention.

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

101 : 밀폐용기105 : 크랭크 샤프트101: sealed container 105: crankshaft

107 : 피스톤108 : 실린더107: piston 108: cylinder

112 : 헤드카바113 : 급유프로펠러112: head cover 113: lubrication propeller

114 : 오일115 : 오일유로홈114: Oil 115: Oil Euro Home

본 고안은 밀폐형 압축기의 오일급유구조에 관한 것으로서, 특히 밀폐형 압축기의 저속운전시 윤활부에 오일이 충분히 급유되도록 하여 압축기의 마멸을 저감시켜 밀폐형 압축기의 신뢰성을 향상시키도록 한 것이다.The present invention relates to an oil lubrication structure of a hermetic compressor, and in particular, to ensure that oil is sufficiently supplied to the lubricating part during the low speed operation of the hermetic compressor to reduce the wear of the compressor to improve the reliability of the hermetic compressor.

종래 밀폐형 압축기와 그 주변부의 구성은 제 1 도에서와 같이 상부밀폐용기(1-1)와 하부밀폐용기(1-2)로 이루어진 압축기의 외관인 밀폐용기(1)내에 압축기구부와 이를 구동하는 전동기구부로 구성하였다.The conventional hermetic compressor and its periphery have a configuration of a compressor unit and a driving mechanism in the hermetic container 1, which is an exterior of a compressor including an upper hermetic container 1-1 and a lower hermetic container 1-2 as shown in FIG. 1. It consisted of an electric mechanism part.

상기 전동기구부는 프레임(2)에 볼트로 체결되어 전원이 인가되면 자력을 발생하는 고정자(3)와, 상기 고정자(3)의 자력에 의해 회전하는 회전자(4)와, 상기 회전자(4)에 압입되어 회전자(4)의 회전에 의해 같이 회전하는 중공인 크랭크 샤프트(5)로 구성하였다.The electric machine part is fastened to the frame 2 by bolts, and when a power is applied, the stator 3 generates a magnetic force, the rotor 4 rotates by the magnetic force of the stator 3, and the rotor 4 ) And a hollow crankshaft (5) which is press-fitted into the rotor and rotates together by the rotation of the rotor (4).

상기 압축기구부는 크랭크 샤프트(5)의 회전운동을 왕복운동으로 바꾸어 주는 슬라이더(6)와, 상기 슬라이더(6)가 삽입된 상태로 설치되어 실린더(8)내에서 왕복운동하는 피스톤(7)과, 상기 실린더(8)를 덮고 있는 헤드카바(12)와, 상기 실린더(8)와 헤드(9) 사이에 설치되어 냉매가스의 흡입을 개폐하는 흡입밸브(10)와, 상기 흡입밸브(10) 전면에 흡입되는 냉매가스의 누설을 방지하는 헤드(9)와, 상기 헤드(9)와 헤드카바(12) 사이에 설치되어 냉매가스의 토출을 개폐하는 토출밸브(11)와, 상기 하부밀폐용기(1-2)내에 담겨있는 오일(14)이 크랭크 샤프트(5)내로 흡상되어 밀폐용기(1)내에서 비산되도록 크랭크 샤프트(5)의 하부에 회전하는 급유프로펠러(13)로 구성하였다.The compressor mechanism includes a slider 6 for converting the rotational movement of the crankshaft 5 into a reciprocating motion, a piston 7 installed with the slider 6 inserted therein and reciprocating in the cylinder 8; And a head cover 12 covering the cylinder 8, a suction valve 10 installed between the cylinder 8 and the head 9 to open and close suction of refrigerant gas, and the suction valve 10. A head 9 for preventing leakage of refrigerant gas sucked into the front surface, a discharge valve 11 installed between the head 9 and the head cover 12 to open and close the discharge of the refrigerant gas, and the lower airtight container. The oil 14 contained in (1-2) was sucked into the crankshaft 5, and it consisted of the oil supply propeller 13 which rotates in the lower part of the crankshaft 5 so that it may scatter in the airtight container 1. As shown in FIG.

이와 같은 구성을 가지는 종래 밀폐형 압축기의 동작설명과 이에 따른 문제점을 다음에서 설명한다.The operation of the conventional hermetic compressor having such a configuration and the problems thereof will be described below.

제 1 도에서 도시한 바와 같이 밀폐형 압축기에 전원이 인가되면 밀폐형 압축기의 외관인 밀폐용기(1)내에 형성된 고정자(3)와 회전자(4) 사이에 유도전류가 발생하여 회전자(4)가 회전하게 되고, 상기 회전자(4)의 회전에 따라 회전자(4)에 압입된 크랭크 샤프트(5)도 회전하게 된다.As shown in FIG. 1, when power is applied to the hermetic compressor, an induction current is generated between the stator 3 and the rotor 4 formed in the hermetic container 1, which is the exterior of the hermetic compressor, so that the rotor 4 As the rotor 4 rotates, the crank shaft 5 press-fitted to the rotor 4 also rotates.

상기 크랭크 샤프트(5)의 회전운동을 크랭크 샤프트(5)의 상부에 형성하여 피스톤(7)에 삽입된 슬라이더(6)가 왕복운동으로 바꾸어 주며, 상기 피스톤(7)은 실린더(8)내를 왕복운동하며 실린더(8)에는 흡,토출밸브(10)(11)과 헤드카바(13)가 볼트로 체결되어 있다.A rotational movement of the crankshaft 5 is formed on the upper portion of the crankshaft 5 so that the slider 6 inserted into the piston 7 converts into a reciprocating motion, and the piston 7 moves in the cylinder 8. In the reciprocating motion, the intake and discharge valves 10 and 11 and the head cover 13 are fastened to the cylinder 8 by bolts.

상기 크랭크 샤프트(5)의 회전원심력에 의해 크랭크 샤프트(5)의 하부에 형성된 급유프로펠러(13)가 회전되어 하부밀폐용기(1-2)내에 담겨있는 오일(14)은 크랭크 샤프트(5)의 외주연부에 형성된 오일 그루브(oil groove)와 크랭크 샤프트(5)내로 흡상이 이루어진다.The oil supply propeller 13 formed at the lower part of the crankshaft 5 is rotated by the centrifugal force of the crankshaft 5 so that the oil 14 contained in the lower airtight container 1-2 is removed from the crankshaft 5. A wick is drawn into the oil groove and crankshaft 5 formed in the outer periphery.

상기 흡상된 오일(14)은 윤활이 필요한 실린더(8)와 피스톤(7) 즉, 윤활부로 크랭크 샤프트(5)의 상부에 형성된 핀부를 통해 밀폐용기내로 비산되어 급유되어 진다.The sucked oil 14 is lubricated by the cylinder 8 and the piston 7 which need lubrication, that is, the lubrication part and scattered into the sealed container through the pin part formed on the upper part of the crankshaft 5.

상기 실린더(8)내에서 왕복운동하는 피스톤(7)에 의해 냉매가스는 흡입, 압축, 토출행정이 이루어지며, 상기 냉매가스는 흡, 토출밸브(10)(11)의 개폐에 의해 흡입 및 토출되어진다.Refrigerant gas is sucked, compressed and discharged by the piston 7 reciprocating in the cylinder 8. The refrigerant gas is sucked and discharged by opening and closing the suction and discharge valves 10 and 11. It is done.

그러나 이러한 종래 밀폐형 압축기가 저속 운전시 크랭크 샤프트의 회전력이 떨어져 밀폐용기내에 담겨 있는 오일을 흡상시키는 흡상력이 저하됨으로서 크랭크 샤프트의 외주연부에 형성된 오일 그루브와 내경을 통해 흡상되는 오일이 적어 윤활부로 충분한 급유가 이루어지지 않아 압축기의 마멸이 증가되어 밀폐형 압축기의 신뢰성이 저하되는 문제점이 있었다.However, such a conventional hermetic compressor has a low rotational force of the crankshaft during low speed operation, so that the wicking force to suck up the oil contained in the hermetic container is reduced, so that the oil groove formed in the outer periphery of the crankshaft and the oil sucked through the inner diameter is sufficient to provide sufficient lubrication. Since lubrication was not performed, abrasion of the compressor was increased, thereby reducing the reliability of the hermetic compressor.

따라서 본 고안은 밀폐형 압축기의 저속 운전시 밀폐용기내에 담겨 있는 오일이 원활히 흡상되게 하기 위하여 크랭크 샤프트의 회전원심력이 상부로 작용되도록 크랭크 샤프트의 내경에 나선형의 오일유로홈을 형성함으로써 저속 운전시 밀폐형 압축기의 윤활부에 오일을 충분히 급유하여 압축기의 마멸을 저감시켜 밀폐형 압축기의 신뢰성을 향상시키도록 하는데 그 목적이 있다.Therefore, the present invention forms a spiral oil flow groove in the inner diameter of the crankshaft so that the rotational centrifugal force of the crankshaft acts upward to allow the oil contained in the sealed container to be sucked up smoothly during the low speed operation of the hermetic compressor. The purpose is to improve the reliability of the hermetic compressor by reducing the wear of the compressor by sufficiently supplying oil to the lubrication part of the compressor.

본 고안 밀폐형 압축기와 그 주변부의 구성은 제 2 도에서와 같이 상부밀폐용기(101-1)와 하부밀폐용기(101-2)로 이루어진 압축기의 외관인 밀폐용기(101)내에 압축기구부와 이를 구동하는 전동기구부로 구성하였다.The structure of the present invention hermetic compressor and its periphery is as shown in FIG. 2 and the compression mechanism part and the driving mechanism in the hermetic container 101 which is the exterior of the compressor consisting of the upper hermetic container 101-1 and the lower hermetic container 101-2. It consisted of the electric mechanism part.

상기 전동기구부는 프레임(102)에 볼트로 체결되어 전원이 인가되면 자력을 발생하는 고정자(103)와, 상기 고정자(103)의 자력에 의해 회전하는 회전자(104)와, 상기 회전자(104)에 압입되어 회전자(104)의 회전에 의해 같이 회전하는 중공인 크랭크 샤프트(105)로 구성한다.The electric machine part is fastened to the frame 102 by bolts, and when a power is applied, the stator 103 generates a magnetic force, the rotor 104 rotates by the magnetic force of the stator 103, and the rotor 104. ) And a hollow crankshaft 105 that is press-fitted into and rotates together by the rotation of the rotor 104.

상기 압축기구부는 크랭크 샤프트(105)의 회전운동을 왕복운동으로 바꾸어 주는 슬라이더(106)와, 상기 슬라이더(106)가 삽입된 상태로 설치되어 실린더(108)내에서 왕복운동하는 피스톤(107)와, 상기 실린더(108)를 덮고 있는 헤드카바(112)와, 상기 실린더(108)와 헤드(109) 사이에 설치되어 냉매가스의 흡입을 개폐하는 흡입밸브(110)와, 상기 흡입밸브(110) 전면에 흡입되는 냉매가스의 누설을 방지하는 헤드(109)와, 상기 헤드(109)와 헤드카바(112) 사이에 설치되어 냉매가스의 토출을 개폐하는 토출밸브(111)와, 상기 하부밀폐용기(101-2)내에 담겨있는 오일(114)이 크랭크 샤프트(105)내로 흡상되어 밀폐용기(101)내에서 비산되도록 크랭크 샤프트(105)의 하부에 회전하는 급유프로펠러(113)와, 상기 크랭크 샤프트(105)의 회전원심력이 상부로 작용하도록 크랭크 샤프트(105)의 내경에 형성된 나선형의 오일유로홈(115)으로 구성한다.The compressor mechanism includes a slider 106 for converting the rotational movement of the crank shaft 105 into a reciprocating motion, a piston 107 reciprocating in the cylinder 108 and installed with the slider 106 inserted therein. A head cover 112 covering the cylinder 108, a suction valve 110 installed between the cylinder 108 and the head 109 to open and close suction of refrigerant gas, and the suction valve 110. A head 109 for preventing leakage of refrigerant gas sucked into the front surface, a discharge valve 111 installed between the head 109 and the head cover 112 to open and close the discharge of the refrigerant gas, and the lower airtight container. Lubrication propeller 113 which rotates in the lower part of the crankshaft 105 so that the oil 114 contained in 101-2 may be sucked up into the crankshaft 105 and scattered in the sealed container 101, and the said crankshaft. Of the crankshaft 105 such that the rotational centrifugal force of 105 acts upwards. It consists of a spiral oil flow path groove 115 formed in the inner diameter.

이와 같이 구성된 본 고안의 작용, 효과를 제 2 도를 참조하여 설명하면 다음과 같다.Referring to the operation and effect of the present invention configured as described with reference to FIG. 2 as follows.

제 2 도에서 도시한 바와 같이 밀폐형 압축기에 전원이 인가되면 밀폐형 압축기의 외관인 밀폐용기(101)내에 형성된 고정자(103)와 회전자(104) 사이에 유도전류가 발생하여 회전자(104)가 회전하고, 상기 회전자(104)의 회전에 따라 회전자(104)에 압입된 크랭크 샤프트(105)도 회전한다.As shown in FIG. 2, when power is applied to the hermetic compressor, an induction current is generated between the stator 103 and the rotor 104 formed in the hermetic container 101, which is the exterior of the hermetic compressor, so that the rotor 104 is operated. The crankshaft 105, which is pressed into the rotor 104, also rotates as the rotor 104 rotates.

상기 크랭크 샤프트(105)의 회전운동을 크랭크 샤프트(105)의 상부에 형성되어 피스톤(107)에 삽입된 슬라이더(106)가 왕복운동으로 바꾸어 주며, 상기 피스톤(107)은 실린더(108)내를 왕복운동하며 실린더(108)에는 흡,토출밸브(110)(111)와 헤드카바(113)가 볼트로 체결된다.The rotational movement of the crankshaft 105 is formed on the top of the crankshaft 105 so that the slider 106 inserted into the piston 107 is converted into a reciprocating motion, and the piston 107 moves into the cylinder 108. While reciprocating, the cylinder 108 is fastened to the suction and discharge valves 110 and 111 and the head cover 113 by bolts.

상기 크랭크 샤프트(105)의 회전원심력에 의해 크랭크 샤프트(105)의 하부에 형성된 급유프로펠러(113)가 회전되어 하부밀폐용기(101-2)내에 담겨 있는 오일(114)은 크랭크 샤프트(105)의 외주연부에 형성된 오일 그루브(oil groove)와 크랭크 샤프트(105)내로 흡상된다.The oil supply propeller 113 formed in the lower portion of the crank shaft 105 is rotated by the centrifugal force of the crank shaft 105 so that the oil 114 contained in the lower airtight container 101-2 is removed from the crank shaft 105. The oil grooves formed in the outer periphery are sucked into the crank shaft 105.

상기 크랭크 샤프트(105)가 회전할때 발생하는 회전원심력이 크랭크 샤프트(105)의 상부로 작용하도록 크랭크 샤프트(105)의 내경에 나선형의 오일유로홈(115)을 형성하여 밀폐형 압축기가 저속운전시 하부밀폐용기(101-2)내에 담겨 있는 오일(114)을 오일유로홈(115)을 따라 흡상되도록 하며, 상기 흡상된 오일(114)은 윤활이 필요한 실린더(108)와 피스톤(107) 즉, 윤활부로 크랭크 샤프트(105)의 상부에 형성된 핀부를 통해 밀폐용기(101)내로 비산되어 급유된다.When the crankshaft 105 rotates, a spiral oil flow groove 115 is formed in the inner diameter of the crank shaft 105 so that the rotational centrifugal force generated when the crank shaft 105 rotates acts as an upper portion of the crank shaft 105. The oil 114 contained in the lower airtight container 101-2 is sucked along the oil flow path groove 115, and the sucked oil 114 is a cylinder 108 and a piston 107 that require lubrication, that is, The lubrication portion is scattered and refueled into the sealed container 101 through the pin portion formed at the upper portion of the crankshaft 105.

상기 실린더(108)내에서 왕복운동하는 피스톤(107)에 의해 냉매가스는 흡입, 압축, 토출행정이 이루어지며, 상기 냉매가스는 흡,토출밸브(110)(111)의 개폐에 의해 흡,토출된다.The refrigerant gas is sucked, compressed and discharged by the piston 107 reciprocating in the cylinder 108. The refrigerant gas is sucked and discharged by opening and closing the suction and discharge valves 110 and 111. do.

이상에서 상세히 설명한 바와 같이 중공인 크랭크 샤프트의 내경에 나선형의 오일유로홈을 형성하여 밀폐형 압축기가 저속 운전시에도 밀폐용기내에 담겨 있는 오일은 오일유로홈을 따라 원활히 흡상하여 압축기의 윤활부로 충분한 양의 오일이 급유되어 압축기의 마멸을 저감시킴으로써 밀폐형 압축기의 신뢰성이 향상되는 효과가 있다.As described in detail above, a spiral oil channel groove is formed in the inner diameter of the hollow crankshaft, so that the oil contained in the airtight container is sucked smoothly along the oil channel groove even when the hermetic compressor is operated at a low speed, so that a sufficient amount is used as the lubrication part of the compressor. The oil is lubricated to reduce the wear of the compressor, thereby improving the reliability of the hermetic compressor.

Claims (1)

밀폐형 압축기의 저속운전시 밀폐용기내에 담겨 있는 오일이 원활히 흡상되게 하기 위하여 크랭크 샤프트의 회전원심력이 상부로 작용되도록 크랭크 샤프트의 내경에 나선형의 오일유로홈을 형성한 것을 특징으로 하는 밀폐형 압축기의 오일급유구조.Oil lubrication of the hermetic compressor, characterized in that the spiral oil flow path is formed in the inner diameter of the crankshaft so that the rotational centrifugal force of the crankshaft acts upward in order to allow the oil contained in the hermetic container to be sucked up smoothly during the low speed operation of the hermetic compressor. rescue.
KR2019960023714U 1996-08-05 1996-08-05 Oil lubrication structure of hermetic compressor KR19980010320U (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR2019960023714U KR19980010320U (en) 1996-08-05 1996-08-05 Oil lubrication structure of hermetic compressor
CN97115076A CN1100207C (en) 1996-08-05 1997-08-04 Lubricant structure of closed-type transmission compressor
JP9210605A JPH1082366A (en) 1996-08-05 1997-08-05 Oil supply structure of hermetic motor driven compressor
US08/905,944 US5941346A (en) 1996-08-05 1997-08-05 Lubricant structure of closed-type transmission compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019960023714U KR19980010320U (en) 1996-08-05 1996-08-05 Oil lubrication structure of hermetic compressor

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KR19980010320U true KR19980010320U (en) 1998-05-15

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KR2019960023714U KR19980010320U (en) 1996-08-05 1996-08-05 Oil lubrication structure of hermetic compressor

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