KR930008488B1 - Scroll compressor - Google Patents
Scroll compressor Download PDFInfo
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- KR930008488B1 KR930008488B1 KR1019910012184A KR910012184A KR930008488B1 KR 930008488 B1 KR930008488 B1 KR 930008488B1 KR 1019910012184 A KR1019910012184 A KR 1019910012184A KR 910012184 A KR910012184 A KR 910012184A KR 930008488 B1 KR930008488 B1 KR 930008488B1
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- South Korea
- Prior art keywords
- oil supply
- scroll compressor
- low pressure
- oil
- refrigerant
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Classifications
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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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
제 1 도는 본 발명이 적용된 저압식스크롤 압축기의 종단면도.1 is a longitudinal sectional view of a low pressure scroll compressor to which the present invention is applied.
제 2 도는 본 발명 보조압축수단을 나타낸 제 1 도의 A-A선 평단면도.Figure 2 is a cross-sectional view taken along the line A-A of Figure 1 showing the present invention the auxiliary compression means.
제 3 도는 본 발명 자연급유수단의 요부를 발췌한 단면도.3 is a cross-sectional view of the main portion of the natural oil supply means of the present invention.
제 4 도는 종래 저압식 압축기의 종단면도.4 is a longitudinal sectional view of a conventional low pressure compressor.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
6 : 보조 압축수단 7 : 자연급유수단6: auxiliary compression means 7: natural oil supply means
60 : 회전익 61 : 흡입구60: rotor blade 61: suction port
63 : 케이스 72 : 편심급유로63: case 72: eccentric oil passage
본 발명은 저압식스크롤 압축기에 관한 것으로, 특히 압축기의 체적효율을 증대시킴과 아울러 윤활유의 공급을 원활하게 하는 저압식스크롤 압축기에 관한 것이다. 압력조절과 기화조절은 기계적으로 행하여 냉매개스를 압축→응축→팽창→증발의 4과정을 연속적으로 수행하면서 냉방 및 냉각시키는 공기조화기에 있어 압축기는 증발기로부터 열교환을 이룬 저온저압의 기체냉매를 고온고압의 기체냉매로 압축시켜 응축기로 공급시키게 되는 것으로, 그러한 압축기는 여러 가지 형태의 것이 있는데, 일례로 소음이 적고 압축 효율이 뛰어난 고압식 또는 저압식스크롤 압축기를 들 수 있다.The present invention relates to a low pressure scroll compressor, and more particularly, to a low pressure scroll compressor that increases the volumetric efficiency of the compressor and facilitates the supply of lubricating oil. Pressure control and vaporization control are performed mechanically to cool and cool the refrigerant gas by continuously performing the four steps of compression → condensation → expansion → evaporation. The compressor is a high temperature and high pressure gas refrigerant of low temperature and low pressure which has exchanged heat from the evaporator. The compressor is compressed into a gas refrigerant and supplied to the condenser. There are various types of such compressors. For example, a high pressure or low pressure scroll compressor having low noise and excellent compression efficiency may be used.
이러한 스크롤압축기에 있어 저압식스크롤 압축기는 고압식에 비해 소음은 다소 높은 반면에 압축효율이 양호하여 에어컨디셔너나 냉장고등에 많이 사용되어지고 있다.In such a scroll compressor, the low pressure scroll compressor has a relatively high noise level compared to the high pressure type, but has a good compression efficiency, and thus is widely used in an air conditioner or a refrigerator.
그런데 상기에서와 같은 종래의 저압식스크롤 압축기는 강제급유방식을 채택하게 되므로서 별도의 급유모터가 사용되고, 냉매의 흐름경로가 모터를 순환하도록 구성되어 지므로서 체적효율이 저하되는 결함이 있었다. 이를 좀더 구체적으로 설명하면 제 4 도에 도시된 바와 같이 모터(31)상부의 하우징(1)측벽에 형성된 흡입구(61)를 통하여 증발기에서 열교환을 이룬 저온저압의 기체 냉매가 흡입되어 → 표방향을 따라 순환하면서 모터(31)와 오일 저장부(4)의 오일을 냉각시킨후 선회스크롤(22)과 고정스크롤(21)이 소용돌이 감김상으로 180°치우치게 구성된 압축부(2)로 흡입되어 고온고압으로 압축되는 것이며, 이렇게 압축된 냉매는 상부의 토출실(24)을 경유하여 토출구(5)로 배출된다.However, since the conventional low pressure scroll compressor adopts a forced oil supply method, a separate oil supply motor is used, and the flow path of the refrigerant is configured to circulate the motor. More specifically, as shown in FIG. 4, the low-temperature low-pressure gas refrigerant, which has undergone heat exchange in the evaporator, is sucked through the suction port 61 formed on the side wall of the housing 1 of the upper part of the motor 31. Cooling the oil of the motor 31 and the oil reservoir (4) while circulating along, the turning scroll (22) and the fixed scroll (21) is sucked into the compression section (2) configured to be 180 degrees in a swirling state, the high temperature and high pressure The compressed refrigerant is discharged to the discharge port 5 via the discharge chamber 24 in the upper portion.
이러한 냉매개스의 압축과정에서 압축부(2)의 기밀유지 및 윤활을 위해 오일저장부(4)에 고인 오일은 회전축(32)의 원심력에 의해 작동되는 급유펌프(16)로 흡입되어 각 윤활부위 및 압축부(2)로 강제 급유되는 것이며, 이렇게 급유된 오일은 → 표방향을 경유하여 오일저장부로 고이게 된다. 그러나 상기에서와 같이 구동되는 종래의 저압식 압축기는 모터상부로 흡입된 냉매가 모터를 두 번 거치는 경로로 순환하게 되므로서 모터의 흡열에 의한 온도 상승으로 체적효율이 감소되어 압력이 손실되었으며, 또한 오일의 급유만을 위해 별도의 급유펌프를 회전축 하부에 구성시켜야 하는 비경제적인 결함이 있었다.During the compression of the refrigerant gas, the oil accumulated in the oil storage unit 4 for the airtightness and lubrication of the compression unit 2 is sucked into the oil supply pump 16 operated by the centrifugal force of the rotating shaft 32, and each lubrication part is lubricated. And forced oil supply to the compression section 2, and the oil thus supplied is accumulated to the oil storage section via the surface direction. However, in the conventional low pressure compressor driven as described above, since the refrigerant sucked into the upper portion of the motor circulates in the path passing through the motor twice, the volume efficiency is reduced due to the temperature increase due to the endotherm of the motor, and the pressure is lost. There was an uneconomical deficiency that requires a separate lubrication pump to be configured under the rotary shaft only for lubrication of oil.
이에 본 발명은 상술한 바와 같은 종래의 제반 결함을 감안하여 이루어진 것으로 그 목적은 압축기의 체적효율을 증대시킴과 아울러 윤활유의 공급을 원활하게 하는 저압식스크롤 압축기를 제공함에 있다.Accordingly, the present invention has been made in view of the above-mentioned general defects, and its object is to provide a low pressure scroll compressor which increases the volumetric efficiency of the compressor and facilitates the supply of lubricating oil.
이러한 본 발명의 목적은 냉매개스의 흡입경로를 바꾸고 자연급유방식을 채택한 저압식스크롤 압축기를 제공함에 의해 달성되는데, 이저압식스크롤 압축기는 모터의 하부에 냉매 흡입구를 갖추고 이와 연통되는 회전축에 보조압축 수단이 구성되며, 편심된 오일급유로를 갖춘 자연급유수단이 구성되는 것을 특징으로 하는 것이다.The object of the present invention is achieved by changing the suction path of the refrigerant gas and providing a low pressure scroll compressor adopting a natural lubrication method, the low pressure scroll compressor has a refrigerant inlet in the lower part of the motor and auxiliary compression to the rotating shaft in communication therewith The means is configured, characterized in that the natural oil supply means having an eccentric oil supply passage is configured.
이하 첨부된 도면에 의거하여 본 발명 일실시예의 구성을 상세히 설명하면 다음과 같다. 제 1 도는 본 발명이 적용된 저압식스크롤 압축기의 종단면도로서 이 저압식스크롤 압축기는 통상에서와 같이 하우징(1)을 밀폐시켜 외체를 형성하고 그 상부로부터 압축부(2)와 구동부(3) 그리고 오일저장부(4)로 구성되는 것으로, 상기 압축부(2)는 고정스크롤(21)과 선회스크롤(22)이 소용돌이 감김상으로 180°치우치게 결합되어 프레임(23)으로 지지되고, 고정스크롤(21)의 상부에 소정의 공간을 가지는 토출실(24)이 형성되며 그 일측상면에 토출구(5)가 연결된다.Hereinafter, the configuration of an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a longitudinal sectional view of a low pressure scroll compressor to which the present invention is applied. The low pressure scroll compressor seals the housing 1 to form an outer body as usual, and the compression unit 2, the driving unit 3, Consisting of the oil storage unit 4, the compression unit 2 is fixed to the fixed scroll 21 and the swinging scroll 22 to be rotated 180 degrees in a swirling form is supported by the frame 23, the fixed scroll ( The discharge chamber 24 having a predetermined space is formed on the upper portion of the 21 and the discharge port 5 is connected to one upper surface of the discharge chamber 24.
또한 상기 구동부는 모터(31)의 중앙에 회전축(32)이 축설되어 프레임(23) 중앙을 관통하여 선회스크롤(22)에 연결되는 것이며, 오일저장부(4)는 하부에 다수의 유입공이 통공된 분리벽(41)이 격설되며 그 중앙에 상기 회전축(32)하부의 급유파이프(73)가 관통되는 것이다. 이러한 저압식스크롤 압축기에 있어서 본 발명은 모터(31)의 하부일측에 흡입구(61)를 갖추어 이와 연통하는 회전축(32)과 그 외곽에 보조압축수단(6)이 구성되는 것이며, 회전축(32)하부의 편심급유로(71)가 형성된 자연급유수단(7)이 구성된다.In addition, the drive unit is a rotary shaft 32 is installed in the center of the motor 31 is connected to the turning scroll 22 through the center of the frame 23, the oil storage unit 4 has a plurality of inlet holes through the bottom The partition wall 41 is installed and the oil supply pipe 73 below the rotary shaft 32 penetrates in the center thereof. In the low pressure scroll compressor, the present invention is provided with a suction port 61 at a lower side of the motor 31 and a rotating shaft 32 communicating therewith and an auxiliary compression means 6 formed at the outer side thereof, and the rotating shaft 32. The natural lubrication means 7 in which the lower eccentric oil supply passage 71 is formed is comprised.
이를 좀더 구체적으로 설명하면, 상기 보조압축수단(6)은 제 2 도에서와 같이 회전축(32)외주연의 하부 소정위치, 즉, 모터(31)와 오일저장부(4)사이의 중앙에 다수의 회전익(62)이 방사상으로 입설되고, 하우징(1)의 내벽의 적의개소에 연결대(64)로 고정시킨 케이스(63)가 외곽을 감싸아 보조압축실(6A)을 형성시키며 케이스(63)의 상부 중앙에는 토출구(6A)를 통공시키고 그 하부일측에 냉매흡입구(61)가 연결되어 하우징(1)의 외곽으로 인출하는 것이다.In more detail, the auxiliary compression means 6 is located in the center of the lower predetermined position of the outer periphery of the rotary shaft 32, that is, the motor 31 and the oil reservoir 4 as shown in FIG. The rotor blade 62 of the housing is radially entered, and the case 63 fixed by the connecting rod 64 in the hostile portion of the inner wall of the housing 1 surrounds the outer periphery to form the auxiliary compression chamber 6A, and the case 63. Through the discharge hole (6A) in the upper center of the refrigerant inlet (61) is connected to the lower one side is drawn out to the outside of the housing (1).
그리고 상기 자연급유수단(7)은 제 3 도에서와 같이 통상의 급유로(72)를 회전축 하단소정위치에서 일측으로 연통되게 절곡시킨 편심급유로(71)가 상부로 연통되게 구비되고, 급유로(72)하단에 오일유입 파이프(73)를 결합시키게 되는 것이다.In addition, the natural oil supply means 7 is provided with an eccentric oil supply passage 71 which is bent to communicate with the normal oil supply passage 72 to one side at the lower end of the rotation shaft as shown in FIG. (72) is to combine the oil inlet pipe (73) at the bottom.
미설명부호 8는 콘넥터단자이다. 이상에서와 같이 결합구성된 본 발명 저압식스크롤 압축기의 모터(31)가 구동되어 회전축(32)이 회전하면서 선회스크롤(22)을 회전시키게되면 고정스크롤(21)과의 스크롤마찰에 의해 냉매를 고온고압으로 압축시켜 토출구(5)로 보내게 된다.Reference numeral 8 is a connector terminal. When the motor 31 of the low pressure scroll compressor of the present invention configured as described above is driven to rotate the rotating scroll 22 while the rotating shaft 32 rotates, the refrigerant is heated at a high temperature by scroll friction with the fixed scroll 21. It is compressed to high pressure and sent to the discharge port 5.
이때 흡입구(61)를 통해 유입되는 저온저압의 냉매는 보조압축수단(6)의 회전익(62)의 고속회전으로 소정압력으로 압축되어 오일저장부(4)를 순환하고 모터(31)의 하부로부터 통과되어 압력의 손실을 최소화하면서 모터를 효율적으로 냉각시킨 후 프레임(23)일측에 통공된 유입구(23A)를 통해 압축부(2)로 유입되는 것이며, 이렇게 소정압력으로 미리 압축되어 모터를 냉각시킨후 유입된 냉매는 압축부에서 효율적으로 압축된다.At this time, the low-temperature low-pressure refrigerant flowing through the suction port 61 is compressed to a predetermined pressure by the high speed rotation of the rotor blade 62 of the auxiliary compression means 6 to circulate the oil storage unit 4 and from the bottom of the motor 31 After passing through, the motor is cooled efficiently while minimizing the loss of pressure, and then it is introduced into the compression unit 2 through the inlet port 23A through one side of the frame 23. The refrigerant introduced afterwards is efficiently compressed in the compression unit.
그리고 상기와 같은 보조압축과정에서 소정압력으로 압축된 냉매개스는 케이스(63)의 토출구(63A)로 토출되어 오일저장부(4)의 오일을 가압시켜 급유파이프(73)로의 유입을 유도하게 되고, 회전축(32)의 회전에 의한 원심력 작용과 편심급유로(71)에 의해 오일저장부내의 오일이 각 윤활부와 압축부(2)로 공급되는 것이다.In addition, the refrigerant gas compressed at a predetermined pressure in the auxiliary compression process as described above is discharged to the discharge port 63A of the case 63 to pressurize the oil in the oil storage unit 4 to induce the inflow into the oil supply pipe 73. The oil in the oil reservoir is supplied to the lubrication portion and the compression portion 2 by the centrifugal force action and the eccentric oil passage 71 by the rotation of the rotation shaft 32.
따라서 본 발명은 모터의 하부로 유입된 냉매가 소정압력으로 압축되어 오일을 가압하고 모터를 효율적으로 냉각시킨후 스크롤회전에 의해 압축이 이루어지게 되므로서, 압축기의 체적효율이 증대될뿐만 아니라 오일이 자연급유방식에 의해 급유되어지므로서 윤활효율을 증대시킬 수 있게함을 특징으로 하는 것이다.Therefore, in the present invention, since the refrigerant flowing into the lower portion of the motor is compressed to a predetermined pressure to pressurize the oil and efficiently cool the motor, and then compression is performed by scroll rotation, the volumetric efficiency of the compressor is increased as well as the oil is increased. It is characterized by being able to increase the lubrication efficiency by being lubricated by the natural lubrication method.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019910012184A KR930008488B1 (en) | 1991-07-16 | 1991-07-16 | Scroll compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019910012184A KR930008488B1 (en) | 1991-07-16 | 1991-07-16 | Scroll compressor |
Publications (2)
Publication Number | Publication Date |
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KR930002691A KR930002691A (en) | 1993-02-23 |
KR930008488B1 true KR930008488B1 (en) | 1993-09-07 |
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Application Number | Title | Priority Date | Filing Date |
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KR1019910012184A KR930008488B1 (en) | 1991-07-16 | 1991-07-16 | Scroll compressor |
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KR (1) | KR930008488B1 (en) |
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1991
- 1991-07-16 KR KR1019910012184A patent/KR930008488B1/en not_active IP Right Cessation
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KR930002691A (en) | 1993-02-23 |
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