KR20080061926A - Hermetic compressor - Google Patents

Hermetic compressor Download PDF

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Publication number
KR20080061926A
KR20080061926A KR1020060137122A KR20060137122A KR20080061926A KR 20080061926 A KR20080061926 A KR 20080061926A KR 1020060137122 A KR1020060137122 A KR 1020060137122A KR 20060137122 A KR20060137122 A KR 20060137122A KR 20080061926 A KR20080061926 A KR 20080061926A
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South Korea
Prior art keywords
discharge
oil
compressor
hermetic
sealed container
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KR1020060137122A
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Korean (ko)
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KR101282226B1 (en
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정채석
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엘지전자 주식회사
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Priority to KR1020060137122A priority Critical patent/KR101282226B1/en
Publication of KR20080061926A publication Critical patent/KR20080061926A/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
    • 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
    • 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • 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
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps
    • 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
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • 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
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • 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
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

A hermetic compressor is provided to improve the cooling and lubrication efficiency of a motor part and a compression part by disposing an oil discharge-reducing part around an inlet of an outlet pipe by inserting a cluster into the compressor. A hermetic compressor includes a sealed container(10) having a motor part(20) for generating torque and a compression part(30) for compressing refrigerant by the torque and filled with oil in a lower part, an outlet pipe(40) mounted to the sealed container for discharging the compressed refrigerant to the outside of the container, and an oil discharge-reducing part(61) connected to a hermetic terminal(50) which supplies power to the motor part and disposed around an inlet(41) of the outlet pipe.

Description

밀폐형 압축기{HERMETIC COMPRESSOR}Hermetic compressor {HERMETIC COMPRESSOR}

도 1은 종래 밀폐형 로터리 압축기의 일례를 보인 종단면도,1 is a longitudinal sectional view showing an example of a conventional hermetic rotary compressor;

도 2는 본 발명의 일 실시예에 따른 밀폐형 로터리 압축기의 종단면도,2 is a longitudinal sectional view of a hermetic rotary compressor according to an embodiment of the present invention;

도 3은 도 2의 유토출저감부의 사시도,3 is a perspective view of the oil discharge reduction unit of FIG.

도 4는 본 발명의 다른 실시예에 따른 밀폐형 로터리 압축기의 종단면도,4 is a longitudinal sectional view of a hermetic rotary compressor according to another embodiment of the present invention;

도 5는 도 4의 유토출저감부의 사시도이다.5 is a perspective view of the oil discharge reduction portion of FIG.

<도면의 주요부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

10 : 밀폐용기 11 : 흡입관10: sealed container 11: suction pipe

20 : 전동기구부 21 : 고정자20: power mechanism 21: stator

22 : 회전자 23 : 편심부22: rotor 23: eccentric portion

24 : 회전축 24a : 오일공급유로24: rotating shaft 24a: oil supply passage

30 : 압축기구부 31 : 실린더30 compressor section 31 cylinder

32 : 메인베어링 33 : 서브베어링32: main bearing 33: sub-bearing

34 : 롤링피스톤 35 : 토출구34: rolling piston 35: discharge port

40 : 토출관 50 : 허메틱 터미널40: discharge tube 50: hermetic terminal

60 : 클러스터 61, 62 : 유토출저감부60: cluster 61, 62: reduction of oil discharge

70 : 리드선70: lead wire

본 발명은 밀폐형 압축기에 관한 것으로서, 더욱 상세하게는, 압축가스의 토출시 함께 토출되는 오일량을 저감시킬 수 있는 밀폐형 압축기에 관한 것이다.The present invention relates to a hermetic compressor, and more particularly, to a hermetic compressor capable of reducing the amount of oil discharged together with the discharge of the compressed gas.

일반적으로 에어컨 등에 적용되는 밀폐형 압축기는 밀폐용기의 내부에 전동기구부와 압축기구부가 함께 마련되어 기계적에너지를 냉매의 압축에너지로 전환하는 것이다.In general, a hermetic compressor applied to an air conditioner is provided with an electric mechanism part and a compression mechanism part inside the hermetically sealed container to convert mechanical energy into compressed energy of a refrigerant.

이러한 밀폐형 압축기는 냉매의 압축방식에 따라 왕복동식, 스크롤식, 로터리식, 베인식 압축기 등으로 구분할 수 있다.Such a hermetic compressor may be classified into a reciprocating type, a scroll type, a rotary type, and a vane type compressor according to a compression method of a refrigerant.

이하에서는, 밀폐형 로터리 압축기 중에서 밀폐형 로터리 압축기를 예로 들어 설명한다.Hereinafter, the sealed rotary compressor will be described as an example among the sealed rotary compressors.

도 1은 종래 밀폐형 로터리 압축기의 일례를 보인 종단면도이다.1 is a longitudinal sectional view showing an example of a conventional hermetic rotary compressor.

도 1을 참조하면, 종래의 밀폐형 로터리 압축기는 소정량의 오일이 채워지고 흡입관(SP)과 토출관(DP)이 구비되는 밀폐용기(1)의 내부에 전동기구부인 고정자(2) 및 회전자(3)가 설치되고, 그 중 회전자(3)의 중심에는 회전축(4)이 압입되며, 그 회전축(4)의 하부에는 압축기구부가 설치되어 이루어져 있다.Referring to FIG. 1, a conventional hermetic rotary compressor includes a stator 2 and a rotor, which are electric motor parts inside a sealed container 1 in which a predetermined amount of oil is filled and a suction pipe SP and a discharge pipe DP are provided. (3) is provided, among which the rotating shaft 4 is press-fitted in the center of the rotor 3, and the compression mechanism part is provided in the lower part of the rotating shaft 4. As shown in FIG.

상기 압축기구부는 밀폐용기(1)의 내주면에 고정되어 흡입관(SP)과 연통되는 원형의 실린더(5)와, 그 실린더(5)의 양측면에 밀착되는 동시에 회전축(4)이 관통되는 상부베어링(6A) 및 하부베어링(6B)과, 상기 회전축(4)에 접동되어 자전하면서 실린더(5)내에서 편심 회전하는 롤링피스톤(7)과, 그 롤링피스톤(7)의 외주면에 압접되어 롤링피스톤(7)의 선회운동시 직선운동을 하면서 실린더(5)를 흡입공간과 압축공간으로 구분하는 베인(미도시)을 포함하여 이루어져 있다.The compression mechanism is fixed to the inner circumferential surface of the sealed container (1) and the circular cylinder (5) in communication with the suction pipe (SP), the upper bearing is in close contact with both sides of the cylinder (5) and the rotating shaft (4) through 6A) and the lower bearing 6B, the rolling piston 7 which is eccentrically rotated in the cylinder 5 while being rotated and rotated by the rotational shaft 4, and is pressed against the outer circumferential surface of the rolling piston 7 7) includes a vane (not shown) for dividing the cylinder 5 into a suction space and a compression space while performing a linear motion during the pivoting motion.

상기 회전축(4)의 내부에는 오일유로(4a)가 축방향으로 길게 관통되도록 형성되고, 그 오일유로(4a)의 하단에는 밀폐용기(1)에 채워진 오일을 흡상하는 오일피더(미도시)가 장착되어 있다.The oil passage 4a is formed to penetrate long in the axial direction inside the rotary shaft 4, and an oil feeder (not shown) for sucking up the oil filled in the sealed container 1 at the lower end of the oil passage 4a. It is installed.

한편, 상기 밀폐용기(1)의 상부캡(1a)에는 외부 전원을 인가받는 허메틱 터미널(8)이 설치되고, 상기 밀폐용기의 내부에는 상기 허메틱 터미널(8)의 일단을 수용하는 클러스터하우징(9)이 장착되며, 상기 클러스터하우징(9)에는 상기 전동기구부에 전원을 인가하는 리드선(9a)이 연결되어있다.On the other hand, the upper cap (1a) of the hermetic container (1) is provided with a hermetic terminal (8) receiving external power, the inside of the hermetic container (cluster housing for receiving one end of the hermetic terminal (8) (9) is mounted, and the cluster housing (9) is connected with a lead wire (9a) for applying power to the power mechanism.

상기와 같이 구성된 종래의 밀폐형 로터리 압축기의 동작은 다음과 같다.The operation of the conventional hermetic rotary compressor configured as described above is as follows.

상기 고정자(2)에 전원이 인가되면 그 전원의 인가에 따라 상기 회전자(3)가 고정자(2)의 내부에서 회전을 하게 되고, 이와 함께 상기 회전축(4)이 회전을 하면서 상기 롤링피스톤(7)이 실린더(5)내에서 편심 회전을 하게 되며, 그 롤링피스톤(7)의 편심회전에 따라 냉매가스가 상기 실린더(5)의 흡입공간으로 흡입되었다가 일정압력까지 지속적으로 압축되고, 그 실린더(5)의 압축공간 압력이 임계압력을 지나 밀폐용기(1)내의 압력보다 고압이 되는 순간 상기 상부베어링(6A)에 장착된 토출밸브가 열리면서 압축가스가 압축공간에서 밀폐용기(1)의 내부로 토출되며, 그 토출가스는 밀폐용기(1)와 고정자(2) 사이의 틈새 또는 고정자(2)와 회전자(3) 사이의 틈새 등을 통해 상부로 이동하여 토출관(DP)을 거쳐 외부로 배출된다.When power is applied to the stator 2, the rotor 3 rotates inside the stator 2 according to the application of the power, and the rotating shaft 4 rotates while the rolling piston ( 7) is eccentric rotation in the cylinder (5), the refrigerant gas is sucked into the suction space of the cylinder (5) in accordance with the eccentric rotation of the rolling piston (7) is continuously compressed to a constant pressure, As soon as the pressure of the compressed space of the cylinder 5 passes the critical pressure and becomes higher than the pressure in the sealed container 1, the discharge valve mounted on the upper bearing 6A is opened and compressed gas is discharged from the sealed container 1 in the compressed space. It is discharged to the inside, the discharge gas is moved upward through the gap between the sealed container (1) and the stator (2) or the gap between the stator (2) and the rotor (3) through the discharge pipe (DP) It is discharged to the outside.

이때, 상기 밀폐용기(1)의 내부에 채워져 있던 오일은 회전축(4)의 오일피더(미도시) 및 오일유로(4a)에 의해 상단까지 흡상되었다가 비산되면서 압축기구부를 윤활시키는 동시에 전동기구부를 냉각시키면서 다시 밀폐용기(1)의 바닥으로 흘러내린다.At this time, the oil filled in the airtight container 1 is sucked up to the upper end by the oil feeder (not shown) and the oil flow path 4a of the rotating shaft 4 and scattered, thereby lubricating the compressor mechanism and the electric mechanism part. While cooling, it flows down to the bottom of the sealed container 1 again.

그러나, 상기한 바와 같은 종래 기술에 따른 밀폐형 로터리 압축기는 오일유로로부터 비산되는 오일의 상당량이 압축부로부터 토출되는 냉매와 함께 토출관을 통해 밀폐용기의 외부로 누설됨으로써, 시간이 지남에 따라 밀폐용기의 내부의 오일량이 크게 줄게 되어 압축기구부와 전동기구부의 윤활작용 및 냉각작용을 제대로 수행할 수 없게 되는 문제점이 있다. However, the hermetic rotary compressor according to the related art as described above leaks a considerable amount of oil scattered from the oil passage together with the refrigerant discharged from the compression section to the outside of the hermetically sealed container through the discharge tube, and thus the hermetically sealed container over time. There is a problem that the amount of oil in the interior is greatly reduced, so that the lubricating action and the cooling action of the compression mechanism portion and the electric mechanism portion cannot be performed properly.

본 발명은 상술한 문제점을 해결하기 위하여 안출된 것으로서, 토출관을 통해 밀폐용기의 외부로 누설되는 오일의 누설량을 줄일 수 있는 밀폐형 압축기를 제공하는데 목적이 있다.The present invention has been made to solve the above-mentioned problems, an object of the present invention is to provide a hermetic compressor that can reduce the amount of leakage of oil leaking to the outside of the hermetic container through the discharge tube.

상기 목적을 달성하기 위한 본 발명에 따른 밀폐형 압축기는 회전력을 발생시키는 전동기구부 및 상기 회전력으로 냉매를 압축시키는 압축기구부가 내부에 마련되며, 저면에 오일이 채워지는 밀폐용기; 상기 압축기구부에서 압축된 냉매를 상기 밀폐용기의 외부로 토출시키도록 상기 밀폐용기에 설치되는 토출관; 및 상기 전동기구부에 전원을 공급하는 허메틱 터미널와 연결되고, 그 일측에는 상기 토출관의 입구부 주변에 배치되도록 유토출저감부가 연장되는 클러스터를 포함한다.The hermetic compressor according to the present invention for achieving the above object is provided with an electric mechanism for generating a rotational force and a compressor mechanism for compressing the refrigerant by the rotational force is provided therein, the bottom of the oil-filled container; A discharge tube installed in the sealed container to discharge the refrigerant compressed by the compression mechanism to the outside of the sealed container; And a cluster connected to the hermetic terminal for supplying power to the electric mechanism part, and one side of which extends the uto discharge reduction portion to be disposed around the inlet of the discharge tube.

이하, 첨부된 도면을 참조하여 본 발명의 일 실시예에 따른 밀폐형 압축에 대하여 상세히 설명한다.Hereinafter, a hermetic compression according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 일 실시예에 따른 유토출 저감장치가 구비된 밀폐형 로터리 압축기의 일부를 나타낸 종단면도이다.Figure 2 is a longitudinal sectional view showing a part of the hermetic rotary compressor equipped with the oil discharge reduction apparatus according to an embodiment of the present invention.

이에 도시된 바와 같이, 밀폐용기(10)의 내부에는 구동력을 발생시키는 전동기구부(20)와, 상기 전동기구부(20)의 구동력을 전달받아 냉매을 압축하는 압축기구부(30)가 마련된다.As shown in the drawing, an interior of the sealed container 10 is provided with a power mechanism 20 for generating a driving force, and a compressor mechanism 30 for compressing a refrigerant by receiving the driving force of the power mechanism 20.

상기 전동기구부(20)는 밀폐용기(10)의 내부에 고정되어 외부에서 전원을 인가받는 고정자(21)와, 상기 고정자(21)의 내부에 일정 간격을 두고 설치되어 상기한 고정자(21)와 상호작용을 하면서 회전하는 회전자(22)와, 상기 회전자(22)에 압입되어 회전력을 상기 압축기구부(30)에 전달하며 편심부(23)가 형성된 회전축(24)을 포함하여 이루어진다.The electric mechanism part 20 is fixed to the inside of the sealed container 10 and the power is applied from the outside and the stator 21 is installed at a predetermined interval inside the stator 21 and the stator 21 and the Rotator 22 which rotates while interacting with each other, and a rotating shaft 24 press-fitted to the rotor 22 to transmit the rotational force to the compression mechanism 30 and the eccentric portion 23 is formed.

여기에서, 상기 회전축(24)의 중앙에는 밀폐용기(10)에 저장된 오일을 상단까지 흡상하는 오일공급유로(24a)가 축방향을 따라 형성된다.Here, an oil supply passage 24a is formed along the axial direction at the center of the rotating shaft 24 to suck up the oil stored in the sealed container 10 to the upper end.

상기 압축기구부(30)는 환형으로 형성되며 상기 밀폐용기(10)의 내부에 설치되는 실린더(31)와, 상기 실린더(31)의 상측 및 하측에 접촉하여 상기 회전축(24)을 지지하는 메인베어링(32) 및 서브베어링(33)과, 상기 회전축(24)의 편심부(23)에 의해 실린더(31)의 내부 공간에서 편심회전하는 롤링피스톤(34)을 포함하여 구성된다.The compression mechanism 30 is formed in an annular shape and the main bearing for supporting the rotating shaft 24 in contact with the upper and lower sides of the cylinder 31 is installed in the interior of the sealed container 10, the cylinder 31. 32 and the sub-bearing 33 and the rolling piston 34 which eccentrically rotates in the internal space of the cylinder 31 by the eccentric part 23 of the said rotating shaft 24 is comprised.

상기 밀폐용기(10)의 상단 중앙에는 토출관(40)이 연통되고, 상기 토출 관(40)의 일측에는 상기 전동기구부(20)에 전원을 공급하는 허메틱 터미널(50)이 결합된다.The discharge tube 40 is communicated to the center of the upper end of the sealed container 10, the one side of the discharge tube 40 is coupled to the hermetic terminal 50 for supplying power to the power mechanism 20.

상기 허메틱 터미널(50)의 내측단자는 밀폐용기(10)의 내부에 배치되고 외측단자는 밀폐용기(10)의 외부에 배치된다.The inner terminal of the hermetic terminal 50 is disposed inside the sealed container 10 and the outer terminal is disposed outside the sealed container 10.

상기 허메틱 터미널(50)의 내측단자에는 외부전원과 전동기기부를 전기적으로 연결하는 클러스터(60)가 결합된다.The inner terminal of the hermetic terminal 50 is coupled to the cluster 60 for electrically connecting the external power source and the electric machine.

상기 클러스터(60)는 밀폐용기(10) 내부의 이물질이 전원연결부위로 침투하는 것을 방지할 수 있도록 상기 허메틱 터미널(50)의 단면적보다 크게 형성될 수 있다.The cluster 60 may be formed larger than the cross-sectional area of the hermetic terminal 50 to prevent foreign matter in the sealed container 10 from penetrating into the power connection portion.

상기 클러스터(60)의 일측에는 오일이 냉매가스와 함께 토출관(40)으로 토출되는 것을 방지하는 유토출저감부(61)가 형성된다.On one side of the cluster 60, an oil discharge reduction portion 61 is formed to prevent oil from being discharged to the discharge pipe 40 together with the refrigerant gas.

도 3은 본 발명의 일 실시예에 따른 유토출저감부가 토출관에 결합된 상태를 나타낸 사시도이다.Figure 3 is a perspective view showing a state in which the oil discharge reduction unit coupled to the discharge tube according to an embodiment of the present invention.

도 3을 참조하면, 유토출저감부(61)는 클러스터(60)의 일측에서 연장되어 클러스터(60)의 두께보다 얇은 두께의 환형으로 형성되며, 상기 토출관(40)의 입구부(41)에 삽입된다. 여기에서, 유토출저감부(61)의 중심이 토출관의 중심축과 일치하도록 형성된다.Referring to FIG. 3, the oil discharge reducing portion 61 extends from one side of the cluster 60 and is formed in an annular shape having a thickness thinner than the thickness of the cluster 60, and the inlet portion 41 of the discharge pipe 40. Is inserted into Here, the center of the uto discharge reduction portion 61 is formed to coincide with the central axis of the discharge tube.

도 4는 변형예에 따른 유토출저감부의 사시도이다.Figure 4 is a perspective view of the oil discharge reduction portion according to the modification.

도 4를 참조하면, 유토출저감부(62)는 상기 클러스터(60)의 일단에서 하측으로 연장되어 형성되는 연장부(63)에 의해 상기 토출관(40)의 입구부(41)에서 이격 되어 배치되는 것도 가능하다. Referring to FIG. 4, the oil discharge reducing portion 62 is spaced apart from the inlet portion 41 of the discharge tube 40 by an extension portion 63 extending downward from one end of the cluster 60. It is also possible to arrange.

여기에서, 상기 유토출저감부(62)와 연장부(63)는 클러스터(60)에 일체로 연장되어 형성될 수 있고, 또는, 나사와 같은 체결부재를 이용하여 클러스터(60)와 체결되어 형성될 수도 있다.Here, the oil discharge reduction portion 62 and the extension portion 63 may be formed integrally extended to the cluster 60, or is formed by fastening with the cluster 60 using a fastening member such as a screw. May be

그리고, 상기 유토출저감부(62)는 그 중심이 상기 전동기구부(20)의 중심축과 일치하도록 배치되는 것이, 오일이 토출관(40)의 입구부(41)의 전면에서 직접 빠져나가는 것을 더욱 효과적으로 줄일 수 있어 바람직하다.In addition, the oil discharge reduction portion 62 is disposed so that the center thereof coincides with the central axis of the power transmission mechanism portion 20, so that oil is directly discharged from the front surface of the inlet portion 41 of the discharge pipe 40. It is desirable to reduce it more effectively.

상기한 바와 같은 밀폐형 로터리 압축기의 일반적인 동작은 다음과 같다.The general operation of the hermetic rotary compressor as described above is as follows.

전동기구부(20)에 전원이 인가되어 회전축(24)이 회전을 하게 되면, 회전축(24)의 편심부(23)에 결합되는 롤링피스톤(34)이 실린더(31)의 밀폐공간에서 편심 회전을 하면서 냉매가스를 흡입하였다가 점차 압축영역으로 밀어 일정압력까지 압축시키게 되고, 이 과정에서 실린더(31)의 밀폐공간의 압력이 밀폐용기(10) 내의 압력보다 높아지게 되는 시점에서 밀폐용기(10)로 토출시키게 되며, 이 밀폐용기(10)의 내부로 토출되는 압축가스는 토출관(40)을 통해 압축기의 외부로 토출된다.When power is applied to the electric drive unit 20 to rotate the rotary shaft 24, the rolling piston 34 coupled to the eccentric portion 23 of the rotary shaft 24 is the eccentric rotation in the closed space of the cylinder 31 While the refrigerant gas is sucked into the compression zone and gradually compressed to a predetermined pressure, the pressure of the sealed space of the cylinder 31 becomes higher than the pressure in the sealed container 10 to the sealed container 10 in this process. The compressed gas discharged into the airtight container 10 is discharged to the outside of the compressor through the discharge pipe 40.

이러한 일련의 과정 중에 밀폐용기(10)의 내부에 채워져 있던 오일은 회전축(24)의 회전시 오일공급유로(24a)를 따라 흡상되어 그 일부는 압축기구부(30)에 공급되어 회전축(24)과의 마찰부를 윤활시키고, 나머지 일부는 오일공급유로(24a)의 끝단에서 비산되면서 전동기구부(20)를 냉각시킨 후에 밀폐용기(10)의 저면으로 흘러내린다.During the series of processes, the oil filled in the sealed container 10 is sucked along the oil supply passage 24a when the rotary shaft 24 rotates, and a part of the oil is supplied to the compression mechanism 30 to supply the rotary shaft 24. Lubricating the friction part of, and the other part is scattered from the end of the oil supply passage 24a to cool the power mechanism unit 20 and flows down to the bottom surface of the sealed container (10).

이때, 상기 회전축에서 비산되는 오일의 일부가 밀폐용기(10) 내의 고온의 압축가스에 섞여 그 압축가스와 함께 토출관(40)쪽으로 흐르게 되나, 이 오일은 토출관(40)의 입구부(41) 주변에 배치되는 유토출저감부(61, 62)에 부딪혀 냉매와 분리되면서 저면으로 흘러내리게 된다.At this time, a part of the oil scattered from the rotating shaft is mixed with the high-temperature compressed gas in the sealed container 10 and flows toward the discharge tube 40 together with the compressed gas, but the oil is the inlet portion 41 of the discharge tube 40 ) And hits the oil discharge reduction portion (61, 62) disposed around the flow to the bottom while being separated from the refrigerant.

이와 같이, 클러스터(60)에 유토출저감부(61, 62)가 일체로 형성되어 별도의 유토출저감부의 제조공정이 필요하지 않고, 유토출저감부(61,62)가 토출관(40)의 입구부(41) 주변에 배치되어 압축기의 외부로 누설되는 오일의 누설량이 감소된다. 그리고, 클러스터(60)의 전체면적의 확대로 인하여 클러스터(60)와 허메틱 터미널(50)의 사이에 이물질이 침투량이 감소된다.As such, the oil discharge reduction portions 61 and 62 are integrally formed in the cluster 60 so that a separate manufacturing process of the oil discharge reduction portions is not necessary, and the discharge discharge portions 40 are formed in the discharge discharge portion 40. It is disposed around the inlet portion 41 of the leakage of the oil leakage to the outside of the compressor is reduced. In addition, due to the expansion of the total area of the cluster 60, foreign matter is penetrated between the cluster 60 and the hermetic terminal 50.

이상에서 본 바와 같이, 본 발명에 따른 밀폐형 압축기에 의하면, 압축기에 클러스터를 삽입하면 토출관의 입구부 주변에 유토출저감부가 배치되어 토출가스에 함유된 오일이 유토출저감부에 부딪혀서 흘러내리도록 함으로써, 압축기의 외부로 토출되는 오일의 토출량이 저감되어 전동기구부와 압축기구부의 냉각작용 및 윤활작용이 향상되고, 별도의 유토출저감부의 조립공정이 필요하지 않아 제조비용이 절감되며, 또한, 클러스터와 허메틱 터미널의 사이에 이물질이 침투량이 감소하여 허메틱 터미널의 단락이 방지되는 이점이 있다.As described above, according to the hermetic compressor according to the present invention, when the cluster is inserted into the compressor, the oil discharge reduction portion is disposed around the inlet portion of the discharge pipe so that the oil contained in the discharge gas collides with the oil discharge reduction portion and flows down. As a result, the discharge amount of oil discharged to the outside of the compressor is reduced to improve the cooling and lubricating action of the electric mechanism part and the compressor mechanism part, and a separate manufacturing process of the oil discharge reduction part is not required, thereby reducing manufacturing costs. There is an advantage that the foreign matter between the and the hermetic terminal is reduced in penetration amount to prevent the short circuit of the hermetic terminal.

Claims (7)

회전력을 발생시키는 전동기구부 및 상기 회전력으로 냉매를 압축시키는 압축기구부가 내부에 마련되며, 저면에 오일이 채워지는 밀폐용기;An airtight mechanism for generating a rotational force and a compressor mechanism for compressing a refrigerant by the rotational force are provided therein, and an oil-sealed container filled with a bottom surface thereof; 상기 압축기구부에서 압축된 냉매를 상기 밀폐용기의 외부로 토출시키도록 상기 밀폐용기에 설치되는 토출관; 및A discharge tube installed in the sealed container to discharge the refrigerant compressed by the compression mechanism to the outside of the sealed container; And 상기 전동기구부에 전원을 공급하는 허메틱 터미널과 연결되고, 그 일측에는 상기 토출관의 입구부 주변에 배치되도록 유토출저감부가 연장되는 클러스터를 포함하는 밀폐형 압축기.Hermetic terminal for supplying power to the transmission mechanism, hermetic compressor comprising a cluster extending on one side of the discharge reduction portion to be disposed around the inlet of the discharge pipe. 제 1 항에 있어서,The method of claim 1, 상기 유토출저감부는 환형으로 형성되는 것을 특징으로 하는 밀폐형 압축기.The closed air compressor is characterized in that the reduced discharge portion is formed in an annular shape. 제 1 항에 있어서,The method of claim 1, 상기 유토출저감부는 상기 토출관의 입구부에 결합되는 것을 특징으로 하는 밀폐형 압축기.The closed air compressor is characterized in that coupled to the inlet portion of the discharge pipe. 제 1 항에 있어서,The method of claim 1, 상기 유토출저감부는 상기 토출관의 입구부에 이격되어 배치되는 것을 특징으로 하는 밀폐형 압축기.The air discharge reducing unit is a hermetic compressor, characterized in that spaced apart from the inlet portion of the discharge pipe. 제 1 항에 있어서,The method of claim 1, 상기 유토출저감부는 상기 유토출저감부의 중심이 상기 토출관의 중심축과 일치하게 배치되는 것을 특징으로 하는 밀폐형 압축기.The air discharge reducing unit is a hermetic compressor, characterized in that the center of the oil discharge reduction unit is arranged to match the central axis of the discharge pipe. 제 1 항에 있어서,The method of claim 1, 상기 유토출저감부는 상기 유토출저감부의 중심이 상기 전동기구부의 중심축과 일치하게 배치되는 것을 특징으로 하는 밀폐형 압축기.The oil discharge reduction unit is a hermetic compressor characterized in that the center of the oil discharge reduction unit is arranged to match the central axis of the power mechanism. 제 1 항에 있어서,The method of claim 1, 상기 클러스터의 단면적은 상기 허메틱 터미널의 단면적보다 크게 형성되는 것을 특징으로 하는 밀폐형 압축기.The cross-sectional area of the cluster is characterized in that the hermetic compressor is formed larger than the cross-sectional area of the hermetic terminal.
KR1020060137122A 2006-12-28 2006-12-28 Hermetic compressor KR101282226B1 (en)

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