KR940001035B1 - Scroll type compressor - Google Patents
Scroll type compressor Download PDFInfo
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- KR940001035B1 KR940001035B1 KR1019910016502A KR910016502A KR940001035B1 KR 940001035 B1 KR940001035 B1 KR 940001035B1 KR 1019910016502 A KR1019910016502 A KR 1019910016502A KR 910016502 A KR910016502 A KR 910016502A KR 940001035 B1 KR940001035 B1 KR 940001035B1
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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
- F04C29/0021—Systems for the equilibration of forces acting on the pump
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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
제1도는 본 발명이 적용된 스크롤압축기의 단면도.1 is a cross-sectional view of a scroll compressor to which the present invention is applied.
제2도는 본 발명이 적용된 스크롤부의 단면도와 힘의 분포상태를 보인 분포도.2 is a sectional view showing a sectional view of a scroll unit and a force distribution state to which the present invention is applied.
제3도는 종래 스크롤부의 단면도와 힘의 분포상태를 보인 분포도.3 is a sectional view showing a sectional view of a conventional scroll portion and a force distribution state.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 스크롤부 21 : 고정스크롤2: scroll portion 21: fixed scroll
22 : 선회스크롤 211 : 스러스트(Thrust)부22: turning scroll 211: thrust section
212 : 유로홈212: Eurohome
본 발명은 스크롤압축기에 관한 것으로, 특히, 선회스크롤에 작용되는 힘의 불균형을 제거하여 스크롤부의 소음을 감쇄시킴과 아울러 압축효율을 극대화시킬 수 있게하는 스크롤압축기에 관한 것이다.The present invention relates to a scroll compressor, and in particular, to reduce the noise imbalance of the force applied to the swing scroll to reduce the noise of the scroll portion and to maximize the compression efficiency.
압력조절과 기화조절을 기계적으로 행하여 냉매개스를 압축→응축→팽창→증발의 4과정을 연속적으로 수행하여 냉방 또는 냉각시키는 냉매싸이클에 있어서, 압축기는 증발기에서 열교환을 이룬 저온저압의 기체냉매를 고온고압으로 압축시켜 응축기측으로 공급시키게 되는 것으로, 그러한 압축기는 여러가지 형태의 것이 있는데, 근래에와서 부피가 소형이고 압축효율이 양호한 스크롤압축기가 많이 사용되어지고 있다.In the refrigerant cycle in which the refrigerant gas is cooled or cooled by performing pressure, evaporation, and mechanically compressing, condensing, expanding, and evaporating four consecutive processes, the compressor is a high temperature low-temperature gas refrigerant that has undergone heat exchange in an evaporator. The compressor is compressed to high pressure and supplied to the condenser side. There are various types of such compressors. In recent years, many scroll compressors have been used which have a small volume and good compression efficiency.
이러한 스크롤압축기는 일반적으로 제3도에서와 같이 밀폐된 용기내에 소용돌이 감김상의 랩을 가지는 고정스크롤(21)과 선회스크롤(22)이 180도 치우치도록 결합구성되고, 선회스크롤(22)의 지지판(22A)상에 중간압력실(24)과 압축실(2A)로 연통되는 압력공(221)이 통공되어 선회스크롤(22)과 후레임(23)의 사이에 형성된 중간압력실(24)로 압축실(2A)의 압력을 도입시켜서 이로인하여 발생되는 스러스트(Thrust)힘에 의해 고정스크롤(21)측으로 선회스크롤(22)을 가압하게 되며, 회전축(31)의 상단에 선회스크롤(22)이 조립구성되고, 회전축(31)의 하단부는 전동기의 호퍼에 고정설치된다.Such a scroll compressor is generally configured such that the fixed scroll 21 and the pivoting scroll 22 having a spiral wrap in a closed container as shown in FIG. A pressure hole 221 communicating with the intermediate pressure chamber 24 and the compression chamber 2A is formed on the support plate 22A to the intermediate pressure chamber 24 formed between the turning scroll 22 and the frame 23. By introducing the pressure of the compression chamber (2A), the turning scroll (22) is pressed to the fixed scroll (21) side by the thrust force generated by this, and the turning scroll (22) is placed on the upper end of the rotating shaft (31). It is assembled and the lower end of the rotating shaft 31 is fixed to the hopper of the electric motor.
이러한 종래 스크롤압축기의 힘의 분포를 보면 제3도에서와 같이 선회스크롤(22)이 우측으로 완전히 치우친 상태 즉, 선회스크롤 지지판(22A)의 외주면과 후레임(23)과의 거리가 최대(L), 최소(l)의 위치에서 선회스크롤의 중심(0)에 대한 모멘트(Moment) 관계식은In the distribution of the force of the conventional scroll compressor, as shown in FIG. 3, the turning scroll 22 is completely biased to the right, that is, the distance between the outer circumferential surface of the turning scroll support plate 22A and the frame 23 is maximum (L). , The moment relation for the center of revolution scroll (0) at the minimum (l) position is
∑Mob(선회스크롤 배면에 작용되는 힘에 의한 모멘트)=0Mob (moment due to the force acting on the back of the turning scroll) = 0
; 짝힘으로 작용하게 되므로 서로 상쇄한다.; They work in pairs to offset each other.
또한 지지판(22A)상면, 즉 압축실(2A)에서 하향으로 작용하는 힘과 지지판 외부면에 작용하는 모멘트 관계식은In addition, the force acting downward in the upper surface of the support plate 22A, that is, the compression chamber 2A, and the moment relationship acting on the outer surface of the support plate
∑Mo=Io θ″∑Mo = Io θ ″
이를 다시 설명하면If you explain this again
∑Mo=Pb'.h-Pb.h+(Pb.14+Ps.13+Pi.12+Pd.11)∑Mo = Pb'.h-Pb.h + (Pb.14 + Ps.13 + Pi.12 + Pd.11)
-(Pb'.14'+Ps.13'+Pi.12'+Pd.li)=Io θ″와 같다.-(Pb'.14 '+ Ps.13' + Pi.12 '+ Pd.li) = Io θ ″.
여기서 Io는 X-Y 단면의 관성모멘트이고, θ″는 각 가속도이며 방향은 반시계방향이다.Where Io is the moment of inertia of the X-Y cross section, θ ″ is the angular acceleration and the direction is counterclockwise.
그리고 도면의 (Ⅰ)과 (Ⅳ)의 Pb'는 각각 (Ⅱ)와 (Ⅲ)의 Pb와 대응하는 것이므로 Pb'＞Pb의 관계가 성립된다.In addition, since Pb 'of (I) and (IV) of the figure corresponds to Pb of (II) and (III), respectively, the relationship of Pb'> Pb is established.
이는 상술한 바와 같이 선회스크롤이 회전함에 따라 일측 공간부(2B)는 작고 타측공간부(2B')가 크게 형성되기 때문에 일측공간부(2B)의 압력은 중간압력 Pb보다 상승하게 되는 것이며, 일측공간부(2B)의 압력이 Pb에서 Pb'로 상승함에 따라 이 Pb'의 압력이 불균형한 힘으로 작용하게 되는 원인이 된다.This is because, as the turning scroll rotates, the one side space portion 2B is smaller and the other side space portion 2B 'is formed larger, so that the pressure of the one side space portion 2B is higher than the intermediate pressure Pb. As the pressure in the space 2B rises from Pb to Pb ', it causes the pressure of this Pb' to act as an unbalanced force.
이때 상기 불균형한 힘의 결과는 Io θ″이며, 이는 θ방향 즉, 반시계방향으로 선회스크롤을 요동시켜 압축기에 소음을 유발시키고 압축 냉매개스를 누설시켜 압축효율을 저하시키게 되는 결함이 있었다.At this time, the result of the unbalanced force is Io θ ″, which causes the scroll wheel to swing in the θ direction, that is, the counterclockwise direction, causing noise to the compressor and leaking the compressed refrigerant gas to deteriorate the compression efficiency.
이에 본 발명은 상술한 바와 같은 종래의 제반결함을 감안하여 이루어진 것으로, 그 목적은 스크롤부의 소음을 감쇄시킴과 아울러 압축효율을 극대화할 수 있게 하는 스크롤압축기를 제공함에 있다.Accordingly, the present invention has been made in view of the above-described conventional defects, and an object thereof is to provide a scroll compressor which can reduce the noise of the scroll unit and maximize the compression efficiency.
이러한 본 발명의 목적은 선회스크롤에 작용하는 힘의 불균형을 제거할 수 있게하는 스크롤압축기를 제공함에 의해 달성되는데, 이 스크롤압축기는 고정스크롤의 스러스트(Thrust)부에 원주상의 유로홈을 구비하여 이루어지는 것을 특징으로 하는 것이다.The object of the present invention is achieved by providing a scroll compressor that can eliminate the imbalance of the force acting on the turning scroll, which is provided with a circumferential flow path groove in the thrust portion of the fixed scroll It is characterized by that.
이하 첨부된 도면에 의거하여 본 발명 일실시예의 구성을 상세히 설명하면 다음과 같다.Hereinafter, the configuration of an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 고안이 적용된 스크롤압축기의 단면도로써, 이 스크롤압축기는 통상에서와 같이 밀폐된 용기(1)의 상부로부터 스크롤부(2)와 구동부(3), 그리고 오일저장부(4)가 구성되는 것으로, 상기 스크롤부(2)는 소용돌이 감김상의 랩을 가지는 고정스크롤(21)과 선회스크롤(22)이 180도 치우치도록 결합구성되고, 선회스크롤(22)의 지지판(22A)에는 압력공(221)을 통공시켜서 선회스크롤(22)과 후레임(23)과의 사이에 형성된 중간압력실(24)로 압축실(2A)의 압력을 도입하여 축방향으로 작용되는 스러스트(Thrust)힘에 의해 선회스크롤(22)이 고정스크롤(21)측으로 가압될 수 있도록 구성된다.1 is a cross-sectional view of a scroll compressor to which the present invention is applied, which is composed of a scroll portion 2, a drive portion 3, and an oil storage portion 4 from an upper portion of a sealed container 1 as usual. In this case, the scroll unit 2 is configured such that the fixed scroll 21 having the spiral wrap and the swinging scroll 22 are oriented 180 degrees, and the pressure is applied to the supporting plate 22A of the swinging scroll 22. Through the ball 221, the pressure of the compression chamber 2A is introduced into the intermediate pressure chamber 24 formed between the turning scroll 22 and the frame 23 to the thrust force acting in the axial direction. The rotating scroll 22 is configured to be pressurized toward the fixed scroll 21.
그리고 상기 구동부(3)는 상기 선회스크롤(22)에 축설되는 회전축(31)을 전동기(32)의 로터에 고정설치하고 회전축(31)의 하부에 오일 유입파이프(33)를 연결시켜 용기하부에 형성된 오일저장부(4)로 내장시키게 되는 것이다.In addition, the driving unit 3 is fixed to the rotor shaft of the rotary shaft (22) installed in the rotor of the electric motor 32, and connected to the oil inlet pipe 33 to the lower portion of the rotary shaft 31 to the bottom of the container Will be built into the formed oil reservoir (4).
이러한 스크롤압축기에 있어 본 발명은 선회스크롤(22)의 외주면과 후레임(23)의 내측벽 사이에 형성된 공간부(2B)와 일치하는 고정스크롤(21)의 저면, 즉 고정스크롤의 저면과 선회스크롤 지지판상면이 마찰되는 스러스트(Thrust)부(211)에 소정폭과 깊이로 요입된 유로홈(212)이 원주상으로 구성된다.In such a scroll compressor, the present invention provides a bottom surface of the fixed scroll 21, ie, a bottom surface of the fixed scroll and a swing scroll, which coincide with the space portion 2B formed between the outer circumferential surface of the turning scroll 22 and the inner wall of the frame 23. A flow path groove 212 recessed in a predetermined width and depth into a thrust portion 211 in which the support plate upper surface is rubbed is configured in a circumferential shape.
이 유로홈(212)은 안지름이 선회스크롤(22), 지지판(22A)의 외경에 비하여 작게 형성하게 되는 것이다.The flow path groove 212 is formed so that the inner diameter is smaller than the outer diameter of the turning scroll 22 and the support plate 22A.
이상에서와 같이 결합구성된 본 발명의 작용효과를 상세히 설명하면 다음과 같다.When described in detail the effect of the present invention coupled to the configuration as described above.
먼저 전동기(32)에 전원이 인가되어 회전축(31)이 회전하게되면, 고정스크롤(21)에 대하여 선회스크롤(22)이 선회운동을 하면서 압축실(2A)에서 냉매개스가 고온고압으로 압축되어 구동부(3)와 오일저장부(4)를 냉각시킨후 토출되는 것이며, 윤활오일은 중간압력실(24)과 오일저장부(4) 토출압력의 차압에 의해 각 윤활부로 유입되어 윤활작용을 하게된다.First, when power is applied to the electric motor 32 and the rotating shaft 31 rotates, the rotating scroll 22 rotates with respect to the fixed scroll 21, and the refrigerant gas is compressed at a high temperature and high pressure in the compression chamber 2A. After the driving unit 3 and the oil storage unit 4 are cooled and discharged, the lubricating oil is introduced into each lubrication unit by the differential pressure of the discharge pressure of the intermediate pressure chamber 24 and the oil storage unit 4 to lubricate. do.
이러한 압축과정에서 스크롤부(2)의 축방향실링(Sealing)은 중간압력실(24)의 압력을 이용하게 되는데, 이 중간압력실의 압력은 압축실(2A)과 연통된 압력공(221)에 흡입압력과 토출압력의 사이에서 형성되어 선회스크롤(22)의 저면에서 상향으로 작용되어지는 중간압력의 힘과 압축실(2A)로부터 선회스크롤(22)에 작용되는 하향력에 의해 축방향 실링(Sealing)을 이루게 되는 것이다.In this compression process, the axial sealing of the scroll unit 2 uses the pressure of the intermediate pressure chamber 24. The pressure of the intermediate pressure chamber is the pressure hole 221 communicating with the compression chamber 2A. An axial seal formed by the suction pressure and the discharge pressure at the bottom of the rotating scroll 22 and acting upward at the bottom of the rotating scroll 22 and the downward force applied to the rotating scroll 22 from the compression chamber 2A. (Sealing) will be achieved.
이상은 일반적인 스크롤압축기의 작동상태를 설명한 것이고, 본 발명은 제2도에 도시된 바와 같이 고정프레임(21)의 스러스트(Thrust)부에 안지름이 선회스크롤(22), 지지판(22A)의 외경에 비해 작게 원주상으로 형성된 유로홈(212)에 의해 선회스크롤(22)의 선회운동시 선회스크롤 지지판(22A)이 돌출하게 되고, 이 부분에는 수직하향의 중간압력(Pb)이 원주방향을 따라 작용하게 된다.The above has described the operation state of a general scroll compressor, the present invention is the inner diameter of the rotating frame 22, the support plate 22A in the thrust (Thrust) portion of the fixed frame 21 as shown in FIG. The turning scroll support plate 22A protrudes during the turning motion of the turning scroll 22 by the flow path groove 212 formed in a circumferential direction, and the intermediate pressure Pb of the vertical downward acts along the circumferential direction. Done.
이를 좀더 구체적으로 설명하면 지지판의 타측상면(22A')의 수직하향으로 중간압력이 작용하여 타측공간부(2B')의 압력 Pb'가 지지판(22A)의 외주면으로 작용되어짐에 따라 발생하는 힘에 대응하므로써 반시계 방향의 불균형 모멘트(Moment)를 상쇄시키게 된다.In more detail, the intermediate pressure acts in the vertical downward direction of the other upper surface 22A 'of the support plate, and the pressure Pb' of the other space 2B 'acts as the outer circumferential surface of the support plate 22A. This counterbalances counterclockwise unbalanced moments.
즉, 지지판(22A)의 타측상면(22A')에 작용하는 힘이 0점을 중심으로 시계방향의 모멘트임에 따라 상기 반시계방향의 불균형 모멘트에 대응하는 같은 크기의 모멘트가 타측상면(22A')에 작용하게 되면 불균형 모멘트를 상쇄시키게 되는 것이다.That is, since the force acting on the other upper surface 22A 'of the support plate 22A is the moment in the clockwise direction centering on the zero point, the moment of the same magnitude corresponding to the counterclockwise unbalanced moment is the other upper surface 22A'. ) Will counterbalance the imbalance moment.
따라서 본 발명은 선회스크롤의 요동에 의해 발생되는 손상과 소음을 방지하고 고정스크롤과 선회스크롤의 실링을 효과를 증대시키므로써 압축기의 효율을 극대화시킬 수 있게 함을 특징으로 하는 것이다.Therefore, the present invention is characterized in that it is possible to maximize the efficiency of the compressor by preventing the damage and noise caused by swinging the swinging scroll and increasing the sealing effect of the fixed scroll and the swinging scroll.
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910016502A KR940001035B1 (en) | 1991-09-20 | 1991-09-20 | Scroll type compressor |
| JP4249886A JPH05202866A (en) | 1991-09-20 | 1992-09-18 | Scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910016502A KR940001035B1 (en) | 1991-09-20 | 1991-09-20 | Scroll type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930006330A KR930006330A (en) | 1993-04-21 |
| KR940001035B1 true KR940001035B1 (en) | 1994-02-08 |
Family
ID=19320217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019910016502A KR940001035B1 (en) | 1991-09-20 | 1991-09-20 | Scroll type compressor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH05202866A (en) |
| KR (1) | KR940001035B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7796246B2 (en) | 2005-12-26 | 2010-09-14 | Gwangju Institute Of Science And Technology | 3-D shape measuring method for auto-grinding equipment of LCD color filter and 3-D shape measuring apparatus for the same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3132339B2 (en) * | 1995-06-19 | 2001-02-05 | 株式会社日立製作所 | Scroll compressor |
| KR100882481B1 (en) * | 2007-04-25 | 2009-02-06 | 엘지전자 주식회사 | Structure for feeding oil in scroll compressor |
| CN105545734B (en) * | 2016-02-25 | 2017-11-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Asymmetric scroll compressor and air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5949386A (en) * | 1982-09-13 | 1984-03-21 | Toshiba Corp | Scroll compressor |
| JPS59119091A (en) * | 1982-12-24 | 1984-07-10 | Hitachi Ltd | Scroll type fluid machine |
| JPS63159691A (en) * | 1986-12-22 | 1988-07-02 | Daikin Ind Ltd | Scroll type fluid machine |
| JPH02248675A (en) * | 1989-03-20 | 1990-10-04 | Tokico Ltd | Scroll fluid machine |
-
1991
- 1991-09-20 KR KR1019910016502A patent/KR940001035B1/en not_active IP Right Cessation
-
1992
- 1992-09-18 JP JP4249886A patent/JPH05202866A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7796246B2 (en) | 2005-12-26 | 2010-09-14 | Gwangju Institute Of Science And Technology | 3-D shape measuring method for auto-grinding equipment of LCD color filter and 3-D shape measuring apparatus for the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR930006330A (en) | 1993-04-21 |
| JPH05202866A (en) | 1993-08-10 |
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