KR100296101B1 - Structure for cooling of closed compress - Google Patents

Structure for cooling of closed compress Download PDF

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Publication number
KR100296101B1
KR100296101B1 KR1019970079873A KR19970079873A KR100296101B1 KR 100296101 B1 KR100296101 B1 KR 100296101B1 KR 1019970079873 A KR1019970079873 A KR 1019970079873A KR 19970079873 A KR19970079873 A KR 19970079873A KR 100296101 B1 KR100296101 B1 KR 100296101B1
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KR
South Korea
Prior art keywords
oil
valve plate
cylinder block
valve
cylinder
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KR1019970079873A
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Korean (ko)
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KR19990059661A (en
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조중창
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이충전
삼성광주전자 주식회사
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Priority to KR1019970079873A priority Critical patent/KR100296101B1/en
Publication of KR19990059661A publication Critical patent/KR19990059661A/en
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    • 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
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F04B39/062—Cooling by injecting a liquid in the gas to be compressed
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122—Cylinder block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • 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
    • Y10S417/902—Hermetically sealed motor pump unit

Abstract

PURPOSE: Cooling structure for a hermetic compressor is provided to prevent overheating and improve performance and reliability of the compressor by cooling efficiently with forming an oil passage in a cylinder block and a valve plate. CONSTITUTION: A cylinder part of a cylinder block(210) is combined with a valve gasket, a suction reed valve and a valve plate, and an oil bank(126) is formed within the upper part of the cylinder block so as to store oil. An oil flow hole(250) is formed in the cylinder block with penetrating, and inclined downward from the lower part of the oil bank to the valve plate. Oil flow holes are formed in the valve gasket and the suction reed valve between the cylinder block and the valve plate. An oil flow groove(260) is formed within the lower part of the valve plate, and connected to the oil flow hole. Overheating is prevented and the performance of the compressor is improved in such a manner that the top of the cylinder is efficiently cooled by forming the oil passage in the cylinder block and the valve plate.

Description

밀폐형 압축기의 냉각구조{STRUCTURE FOR COOLING OF CLOSED COMPRESS}Cooling structure of hermetic compressor {STRUCTURE FOR COOLING OF CLOSED COMPRESS}

본 발명은 밀폐형 압축기에 있어서, 냉매를 압축하여 공급하는 압축기구부를 냉각시키기 위한 냉각구조에 관한 것으로서, 더욱 상세하게는 실린더 블록 및 밸브 플레이트에 오일이 유동할 수 있도록 오일 유동로를 형성함으로써, 압축 기구부의 과열을 방지하여 압축기의 성능을 향상시키도록 한 밀폐형 압축기의 냉각구조에 관한 것이다.The present invention relates to a cooling structure for cooling a compressor mechanism for compressing and supplying a refrigerant in a hermetic compressor, and more particularly, by forming an oil flow path so that oil can flow in a cylinder block and a valve plate. The cooling structure of the hermetic compressor which prevents overheating of a mechanism part, and improves the performance of a compressor is provided.

밀폐형 압축기는, 도 1 및 도 2에 도시된 바와 같이, 상,하부 쉘(101),(102)의 내부에 고정자(111)와 회전자(112)로 이루어지는 전동 기구부(110)와, 크랭크 샤프트(120)의 회전 동작에 의해 냉매를 흡입하여 압축시킨 후 토출시키는 압축 기구부(200)로 구성된다.As shown in FIGS. 1 and 2, the hermetic compressor includes an electric mechanism part 110 including a stator 111 and a rotor 112 in the upper and lower shells 101 and 102, and a crank shaft. It consists of a compression mechanism unit 200 for sucking and compressing the refrigerant by the rotation operation of 120 to discharge.

회전자(112)의 중앙에는 크랭크 샤프트(120)가 압입되어, 베어링(123)의 내부에 회전 가능하게 결합된다. 크랭크 샤프트(120)의 외주면에는 오일 공급홈(123)이 형성되어 있으며, 크랭크 샤프트의 편심축부(121)의 하부에는 오일 공급을 위한 오일 픽업 튜브(127)가 설치되어 오일 공급공(128) 및 오일 공급홈(123)을 통해 베어링(122)부에 윤활용 오일을 공급하게 된다.The crankshaft 120 is press-fitted to the center of the rotor 112, rotatably coupled to the inside of the bearing 123. An oil supply groove 123 is formed on the outer circumferential surface of the crankshaft 120, and an oil pickup tube 127 for oil supply is installed at the lower portion of the eccentric shaft portion 121 of the crankshaft to provide an oil supply hole 128 and Lubricating oil is supplied to the bearing 122 through the oil supply groove 123.

압축 기구부(200)는, 냉매의 흡입 공간을 이루는 실린더(211)가 일체로 형성된 실린더 블록(210)과, 크랭크 샤프트(120)의 하단부에 결합되어 실린더(211)의 내부에서 직선 왕복 운동을 하는 피스톤(212)과, 상기 실린더(211)의 단부에 결합되는 실린더 헤드(220)와, 밸브 장치(230)로 구성된다.The compression mechanism 200 is coupled to the lower end of the cylinder block 210 and the crankshaft 120 is formed integrally with the cylinder 211 constituting the suction space of the refrigerant to linearly reciprocate the inside of the cylinder 211 It consists of a piston 212, a cylinder head 220 coupled to the end of the cylinder 211, and a valve device 230.

밸브 장치(230)는, 토출 밸브가 결합되어 있는 밸브 플레이트(233)와 석션리드 밸브(232)로 구성되며, 밸브 가스켓(231)과 실린더 가스켓(234)을 개재하여 는 실린더(211)와 실린더 헤드(220)의 사이에 설치된다.The valve device 230 includes a valve plate 233 and a suction lead valve 232 to which a discharge valve is coupled, and includes a cylinder 211 and a cylinder via a valve gasket 231 and a cylinder gasket 234. It is installed between the heads 220.

실린더 블록(210) 외측 상부에는, 크랭크 샤프트에 형성된 오일 공급홈(122,123) 및 베어링(122)의 단부에 형성되어 있는 오일 안내홈(124)을 통과해 베어링(122)의 외벽를 따라 흘러내리는 오일(125)을 저장할 수 있도록 오일 뱅크(126)가 형성되어 있으며, 오일 뱅크(126)에 저장된 오일 및 실린더 블록의 외벽을 타고 흘러내리는 오일은 실린더 블록을 냉각시킨 후, 하부쉘(102)의 바닥으로 복귀된다.The oil flowing down along the outer wall of the bearing 122 passes through the oil supply grooves 122 and 123 formed in the crankshaft and the oil guide groove 124 formed at the end of the bearing 122. The oil bank 126 is formed to store 125, and the oil stored in the oil bank 126 and the oil flowing down the outer wall of the cylinder block cool the cylinder block and then move to the bottom of the lower shell 102. Is returned.

그러나, 상기한 바와 같은 종래 밀폐형 압축기의 냉각구조에 따르면, 오일 뱅크(126)에 저장된 오일이 실린더 블록의 외벽만을 냉각 시키기 때문에, 고온 고압의 압축 냉매와 접하여 상대적으로 고온이 되는 실린더의 탑면부를 효과적으로 냉각시킬 수 없다는 문제점이 있었다.However, according to the cooling structure of the conventional hermetic compressor as described above, since the oil stored in the oil bank 126 only cools the outer wall of the cylinder block, the top surface portion of the cylinder that is relatively hot in contact with the high-temperature and high-pressure compressed refrigerant There was a problem that it cannot be cooled effectively.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 실린더 블록 및 밸브 플레이트에 오일이 유동할 수 있도록 오일 유동로를 형성함으로써, 압축 기구부의 과열을 방지하여 압축기의 성능 및 신뢰성을 향상시키는 데 그 목적이 있다.The present invention is to solve the above problems, by forming an oil flow path for the oil flow in the cylinder block and the valve plate, to prevent overheating of the compression mechanism part to improve the performance and reliability of the compressor There is this.

도 1은 밀폐형 압축기의 종단면도.1 is a longitudinal sectional view of a hermetic compressor.

도 2는 종래 기술에 의한 밀폐형 압축기의 압축기구부의 분해 사시도.Figure 2 is an exploded perspective view of the compression mechanism of the hermetic compressor according to the prior art.

도 3은 본 발명에 의한 밀폐형 압축기의 압축기구부의 분해 사시도.Figure 3 is an exploded perspective view of the compression mechanism of the hermetic compressor according to the present invention.

도 4는 본 발명에 따른 밸브 플레이트의 평면도.4 is a plan view of a valve plate according to the present invention;

도 5는 본 발명에 의한 밀폐형 압축기의 냉각구조에 따른 오일 공급 통로를 타타내는 요부 단면도.Figure 5 is a sectional view showing the main portion showing the oil supply passage in accordance with the cooling structure of the hermetic compressor according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

126 : 오일 뱅크 125 : 오일126: oil bank 125: oil

210 : 실린더 블록 214 : 실린더부210: cylinder block 214: cylinder portion

231 : 밸브 가스켓 233 : 밸브 플레이트231 valve gasket 233 valve plate

250 : 오일 유동공 260 : 오일 유동홈250: oil flow hole 260: oil flow groove

261 : 제 1 유동홈 262 : 제 2 유동홈261: first flow groove 262: second flow groove

상기의 목적을 달성하기 위한 본 발명에 의한 밀폐형 압축기의 냉동구조는,실린더 블록의 실린더부에 밸브 가스켓과 석션 리드 밸브와 밸브 플레이트가 결합되며, 상기 실린더 블록의 외측 상부에 오일이 고일수 있도록 오일 뱅크가 형성되어 있는 밀폐형 압축기의 냉각구조에 있어서, 상기 밸브 플레이트의 하부에 오일 유동홈을 형성하고, 상기 밸브 가스켓과 실린더 블록과 석션 리드 밸브 각각에는 상기 오일 뱅크와 상기 오일 유동홈을 연통키는 오일 유동공이 형성되는 것을 특징으로 한다.In the refrigeration structure of the hermetic compressor according to the present invention for achieving the above object, the valve gasket, the suction reed valve and the valve plate is coupled to the cylinder portion of the cylinder block, the oil so that the oil can be accumulated on the outer upper portion of the cylinder block In the cooling structure of a hermetic compressor having a bank, an oil flow groove is formed in the lower portion of the valve plate, and the oil gasket and the oil flow groove communicate with each of the valve gasket, the cylinder block, and the suction reed valve. It is characterized in that the oil flow hole is formed.

이하, 본 발명에 의한 밀폐형 압축기의 냉각구조의 바람직한 실시예를 첨부된 도면을 참조하여 상세하게 설명하면 다음과 같다.Hereinafter, a preferred embodiment of a cooling structure of a hermetic compressor according to the present invention will be described in detail with reference to the accompanying drawings.

이하 설명에 있어서, 종래와 동일 부품에 대해서는 동일 도면 부호를 사용하며, 구성 및 기능이 동일한 부분에 대해서는 설명을 생략하기로 한다.In the following description, the same reference numerals are used for the same parts as in the prior art, and the descriptions of the parts having the same configuration and function will be omitted.

도 3은 본 발명에 의한 밀폐형 압축기의 냉각구조를 나타내기 위한 압축기구부의 분해 사시도이고, 도 4는 본 발명에 따른 밸브 플레이트의 평면도이며, 도 5는 본 발명에 의한 밀폐형 압축기의 냉각구조에 따른 오일 공급 통로를 타타내는 요부 단면도이다.3 is an exploded perspective view of a compression mechanism for showing the cooling structure of the hermetic compressor according to the present invention, Figure 4 is a plan view of the valve plate according to the present invention, Figure 5 is a cooling structure of the hermetic compressor according to the present invention It is a sectional view of a main part which shows an oil supply passage.

도 4에 도시되어 있는 바와 같이, 본 발명에 따른 밸브 플레이트(233)의 하부에는 오일 유동홈(260)이 형성된다.As shown in FIG. 4, an oil flow groove 260 is formed at a lower portion of the valve plate 233 according to the present invention.

오일 유동홈(260)은 오일 뱅크(126)와 연통되어 오일이 흐를 수 있으면 어떠한 형상이라도 가능하며, 밸브 플레이트(233)의 강도가 크게 저하되지 않으며, 실린더 보어나 토출공과 간섭되지 않는 범위 내에서 가능한 한 넓게 형성하는 것이 바람직하다. 본 실시예는. 반원형의 제 1 유동홈(261)과, 상기 제 1 유동홈의 중앙으로부터 상기 밸브 플레이트 하단부까지 연장되는 제 2 유동홈(261)에 의해 오일 유동홈(260)을 구성한 것을 나타내고 있다. 실린더 블록(210)과 밸브 가스켓(231) 및 석션 리드 밸브(232)에는, 오일 뱅크(126)와 오일 유동홈(260)을 연통키는 오일 유동공(250a,250b,250c)이 각각 형성된다.The oil flow groove 260 may be in any shape as long as the oil bank 126 communicates with the oil bank 126 and does not significantly reduce the strength of the valve plate 233 and does not interfere with the cylinder bore or the discharge hole. It is desirable to form as wide as possible. This embodiment. The oil flow groove 260 is formed by a semicircular first flow groove 261 and a second flow groove 261 extending from the center of the first flow groove to the lower end of the valve plate. In the cylinder block 210, the valve gasket 231, and the suction reed valve 232, oil flow holes 250a, 250b, and 250c communicating with the oil bank 126 and the oil flow groove 260 are formed, respectively. .

이하, 본 발명에 의한 밀폐형 압축기의 냉각구조에 따른 오일 유동 통로를 도 5를 참조하여 설명하면 다음과 같다.Hereinafter, an oil flow passage according to a cooling structure of a hermetic compressor according to the present invention will be described with reference to FIG. 5.

크랭크 샤프트(120)의 회전에 의해 편심축부(121)의 하부에 결합된 오일 픽업 튜브(127)를 통해 냉동 오일(125)이 흡입되어 오일 공급공(128)을 따라 흡상된 후, 오일 공급홈(122),(123)을 따라 유동하며 베어링부에 윤활 작용을 한 후, 베어링(123)의 단부에 형성된 오일 안내홈(124)까지 상승한다. 오일 안내홈(124)까지 상승된 오일은 고정자(111)과 베어링(123) 사이의 공간을 통해 하강하여 실린더 블록(210)에 형성된 오일 뱅크(126)에 모여진다. 이렇게 실린더 블록(210)의 오일 뱅크(126)에 모여진 오일은 실린더 블록(210), 밸브 가스켓(231) 및 셕션 리드 밸브(232)의 내부에 형성된 오일 유동공(250)을 통해 밸브 플레이트(233) 하부에 형성된 제 1 유동홈(261)에 도달한 후 중앙으로 모여지게 되고, 제 2 유동홈(262)을 통해 하부 쉘(102)의 바닥으로 흘러내린다.By the rotation of the crank shaft 120, the frozen oil 125 is sucked through the oil pickup tube 127 coupled to the lower portion of the eccentric shaft portion 121 and sucked along the oil supply hole 128, and then the oil supply groove After lubricating the bearing portion 122 and 123, the oil is raised to the oil guide groove 124 formed at the end of the bearing 123. The oil raised to the oil guide groove 124 is lowered through the space between the stator 111 and the bearing 123 and collected in the oil bank 126 formed in the cylinder block 210. The oil gathered in the oil bank 126 of the cylinder block 210 is the valve plate 233 through the oil flow hole 250 formed inside the cylinder block 210, the valve gasket 231, and the suction reed valve 232. After reaching the first flow groove 261 formed in the lower portion is collected in the center, and flows down to the bottom of the lower shell 102 through the second flow groove (262).

따라서, 오일이 밸브 플레이트(233)의 하부에 형성되어 있는 오일 유동홈(260)을 통과하며, 상대적으로 고온인 밸브 플레이트(233) 및 실린더의 탑면부를 충분히 냉각시켜줄 수 있게 되므로, 흡입 및 토츨 가스의 온도가 낮아져 비체적이 감소함으로써 압축 성능이 향상되고, 고온부의 과열이 방지됨으로 인해 압축기의 신뢰성이 향상된다.Therefore, the oil passes through the oil flow groove 260 formed in the lower portion of the valve plate 233, and it is possible to sufficiently cool the top surface of the valve plate 233 and the cylinder, which are relatively high temperature, so that suction and torch As the temperature of the gas is lowered, the specific volume is reduced, thereby improving compression performance, and overheating of the hot portion is prevented, thereby improving the reliability of the compressor.

이상 살펴본 바와 같이, 본 발명에 의한 밀폐형 압축기의 냉각구조에 의하면, 실린더 블록 및 밸브 플레이트에 오일이 유동할 수 있도록 오일 유동로를 형성하여, 고온부인 밸브 플레이트 실린더의 탑면부를 효과적으로 냉각 시킴으로써, 흡입 및 토출 가스의 온도가 낮아져 비체적이 감소함으로써 압축 성능이 향상되고, 고온부의 과열이 방지됨으로 인해 압축기의 신뢰성을 향상된다는 효과가 있다.As described above, according to the cooling structure of the hermetic compressor according to the present invention, an oil flow path is formed to allow oil to flow in the cylinder block and the valve plate, thereby effectively cooling the top surface of the valve plate cylinder, which is a high temperature portion, And the temperature of the discharge gas is lowered, the specific volume is reduced, the compression performance is improved, there is an effect that the reliability of the compressor is improved by preventing overheating of the high temperature portion.

Claims (2)

실린더 블록의 실린더부에 밸브 가스켓과 석션 리드 밸브와 밸브 플레이트가 순차적으로 결합되며, 상기 실린더 블록의 상면에는 오일이 고일수 있도록 오일 뱅크가 형성되어 있는 밀폐형 압축기의 냉각구조에 있어서,In the cooling structure of the hermetic compressor in which the valve gasket, the suction reed valve and the valve plate are sequentially coupled to the cylinder portion of the cylinder block, and an oil bank is formed on the upper surface of the cylinder block so that oil may be accumulated. 상기 오일 뱅크의 오일이 상기 실린더 블록 및 밸브 플레이트측으로 유도가능하도록 상기 실린더 블록에 상기 오일 뱅크의 하면에서 밸브 플레이트측으로 하향 경사지게 오일 유동공을 관통형성하고, 이와 연통되도록 상기 실린더 블록과 밸브 플레이트 사이에 개재되는 상기 밸브 가스켓과 석션 리드 밸브에는 오일 유동공을 각각 형성하며, 상기 오일 유동공들과 연통되는 오일 유동홈을 상기 밸브 플레이트의 하면에 형성한 것을 특징으로 하는 밀폐형 압축기의 냉각구조.Between the cylinder block and the valve plate so as to be in communication with the cylinder block and the valve plate through the oil flow hole inclined downward from the lower surface of the oil bank to the valve plate side in such a way that the oil of the oil bank is guided to the cylinder block and valve plate side Cooling structure of the hermetic compressor, characterized in that the valve gasket and the suction reed valve is formed in each of the oil flow hole, the oil flow groove communicating with the oil flow hole formed on the lower surface of the valve plate. 제 1 항에 있어서, 상기 오일 유동홈은, 반원 형상의 제 1 유동홈과, 상기 제 1 유동홈의 중앙으로부터 상기 밸브 플레이트 하단부까지 연장되는 제 2 유동홈으로 구성되는 것을 특징으로 하는 밀폐형 압축기의 냉각구조.The hermetic compressor of claim 1, wherein the oil flow groove comprises a semicircular first flow groove and a second flow groove extending from the center of the first flow groove to the lower end of the valve plate. Cooling structure.
KR1019970079873A 1997-12-31 1997-12-31 Structure for cooling of closed compress KR100296101B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100873371B1 (en) 2007-12-26 2008-12-10 학교법인 두원학원 Valve plate of reciprocating comrpessor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100873371B1 (en) 2007-12-26 2008-12-10 학교법인 두원학원 Valve plate of reciprocating comrpessor

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