KR20000001029A - Closed typed rotary compressor - Google Patents

Closed typed rotary compressor Download PDF

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Publication number
KR20000001029A
KR20000001029A KR1019980021052A KR19980021052A KR20000001029A KR 20000001029 A KR20000001029 A KR 20000001029A KR 1019980021052 A KR1019980021052 A KR 1019980021052A KR 19980021052 A KR19980021052 A KR 19980021052A KR 20000001029 A KR20000001029 A KR 20000001029A
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KR
South Korea
Prior art keywords
casing
rotary compressor
coolant
oil
refrigerant
Prior art date
Application number
KR1019980021052A
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Korean (ko)
Inventor
홍정기
Original Assignee
윤종용
삼성전자 주식회사
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Publication date
Application filed by 윤종용, 삼성전자 주식회사 filed Critical 윤종용
Priority to KR1019980021052A priority Critical patent/KR20000001029A/en
Publication of KR20000001029A publication Critical patent/KR20000001029A/en

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Classifications

    • 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
    • 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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0238—Hermetic compressors with oil distribution channels
    • F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
    • F04B39/0253—Hermetic compressors with oil distribution channels in the rotating shaft using centrifugal force for transporting the oil
    • 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
    • F04C29/023—Lubricant distribution through a hollow driving shaft
    • 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
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • 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
    • F04C2240/60—Shafts
    • F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft

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

Abstract

PURPOSE: A closed typed rotary compressor is provided to prevent oil from venting outside of a casing with a coolant compressed in a compressing unit. CONSTITUTION: The closed type rotary compressor is installed with:a casing(1) for forming a closed space; a compressing unit(3) for compressing the absorbed coolant contained in the casing; a driving motor(5) for supplying a driving force to the compressing unit; an accumulator(7) for supplying the coolant in a state of gas to the compressing unit; a coolant vent(9) for venting the compressed coolant.

Description

밀폐형 회전식 압축기.Hermetic rotary compressor.

본 발명은, 밀폐형 회전식 압축기에 관한 것으로서, 보다 상세하게는, 압축부에서 압축된 냉매와 함께 오일이 케이싱 외부로 토출되는 것을 억제시킬 수 있도록 한 밀폐형 회전식 압축기에 관한 것이다.The present invention relates to a hermetic rotary compressor, and more particularly, to a hermetic rotary compressor which can suppress the discharge of oil to the outside of the casing together with the refrigerant compressed in the compression section.

도 3은 종래의 밀폐형 회전식 압축기의 종단면도이다. 이 도면에 도시된 바와 같이, 밀폐형 회전식 압축기는 밀폐공간을 형성하는 통형상의 케이싱(101)과, 상기 케이싱(101)내로 유입된 냉매를 압축하는 압축부(103)와, 압축부(103)에 구동력을 전달하는 구동모터(105)를 가진다. 케이싱(101)의 외측에는 압축부(103)에 기체상태의 냉매를 공급하는 어큐뮬레이터(107)가 설치되어 있다.3 is a longitudinal sectional view of a conventional hermetic rotary compressor. As shown in this figure, the hermetic rotary compressor includes a cylindrical casing 101 for forming a closed space, a compression unit 103 for compressing the refrigerant introduced into the casing 101, and a compression unit 103. It has a drive motor 105 for transmitting a driving force to. On the outer side of the casing 101, an accumulator 107 for supplying a gaseous refrigerant to the compression unit 103 is provided.

케이싱(101)의 상부영역에는 압축부(103)에서 압축된 냉매가 토출되는 냉매토출관(109)이 설치되어 있으며, 저부영역에는 케이싱(101)내의 구동부품들의 냉각 및 윤활을 위해 공급되는 오일이 수용되어 있는 오일수용부(111)가 형성되어 있다.The upper region of the casing 101 is provided with a refrigerant discharge pipe 109 through which the refrigerant compressed by the compression unit 103 is discharged. In the lower region, oil supplied for cooling and lubrication of the driving parts in the casing 101 is provided. The oil accommodating part 111 in which this is accommodated is formed.

압축부(103)의 원통형상의 실린더(113)와, 실린더(113)의 내벽면에 접촉하면서 회전하는 로울러(115)를 갖는다. 실린더(113)내부에 압축공간을 형성할 수 있도록 실린더(113)의 개방된 상하단부에는 개방영역을 차단하는 상부플랜지(117)와 하부플랜지(119)가 각각 설치되어 있다. 상부플랜지(117)의 상측에는 실린더(113)에서 압축된 냉매를 일시 수용하여 상향 토출시키는 머플러(121)가 설치되어 있다.The cylindrical cylinder 113 of the compression part 103 and the roller 115 which rotates in contact with the inner wall surface of the cylinder 113 are provided. The upper flange 117 and the lower flange 119 are provided at the upper and lower ends of the cylinder 113 to block the open area so as to form a compression space in the cylinder 113. On the upper side of the upper flange 117, a muffler 121 for temporarily receiving the refrigerant compressed by the cylinder 113 and upwardly discharging is provided.

구동모터(105)는 케이싱(101)의 내벽면에 고정되는 고정자(123)와, 고정자(123)내에 회전가능하도록 삽입되는 회전자(125)를 갖는다. 회전자(125)의 중앙영역에는 회전자(125)와 일체로 회전하는 회전축(129)이 삽입되어 있다. 회전축(129)은 오일수용부(111)까지 하향 연장되어 있으며, 하단부영역에는 압축부(103)의 로울러(115) 내측에 결합되는 편심부(131)가 형성되어 있다. 오일수용부(111)에 잠겨있는 회전축(129)의 하단부에는 회전축(129)과 일체로 회전하여 케이싱(101)내의 구동부품들에 오일을 공급하는 오일픽업베인(133)이 설치되어 있다.The drive motor 105 has a stator 123 fixed to the inner wall surface of the casing 101 and a rotor 125 inserted rotatably in the stator 123. In the central region of the rotor 125, a rotating shaft 129 which is integrally rotated with the rotor 125 is inserted. The rotating shaft 129 extends downward to the oil receiving portion 111, and an eccentric portion 131 coupled to the inside of the roller 115 of the compression portion 103 is formed in the lower region. An oil pick-up vane 133 is installed at a lower end of the rotating shaft 129 that is locked to the oil receiving part 111 to rotate integrally with the rotating shaft 129 to supply oil to the driving parts in the casing 101.

이상과 같은 구성에 의하여, 회전축(129)이 회전을 하면, 어큐뮬레이터(107)에서 기체상태의 냉매가 실린더(113)내로 유입된다. 유입된 냉매는 편심부(131)에 결합된 로울러(115)가 실린더(113)의 내벽에 접촉하면서 회전함에 따라 압축되어 실린더(113) 외부로 토출되고, 토출된 냉매는 상부플랜지(117)를 통과하여 머플러(121)를 통해 상향 토출된다. 또한, 오일은 오일픽업베인(133)의 회전에 의해 오일수용부(111)로부터 상향 급송되어 회전운동하는 부품들의 각 마찰부위에 공급되고 일부 오일은 회전축(129)의 원심력에 의해 비산되어 케이싱(101)내로 퍼지게 된다.By the structure as described above, when the rotating shaft 129 rotates, the gaseous refrigerant flows into the cylinder 113 by the accumulator 107. The introduced refrigerant is compressed and discharged to the outside of the cylinder 113 as the roller 115 coupled to the eccentric portion 131 rotates while contacting the inner wall of the cylinder 113, and the discharged refrigerant discharges the upper flange 117. Passed through the muffler 121 is discharged upward. In addition, the oil is fed upward from the oil receiving portion 111 by the rotation of the oil pick-up vane 133 is supplied to each friction portion of the rotating parts and some oil is scattered by the centrifugal force of the rotating shaft 129 casing ( 101) to spread into.

그런데, 이러한 종래의 압축기에 있어서는, 압축부가 위치한 케이싱의 하부영역과 냉매토출관이 설치된 상부영역의 압력차에 의해 케이싱의 하부영역에서 상부영역을 향하는 냉매유속이 증가하여 머플러를 통해 상향토출되는 냉매와 함께 케이싱 내부에 퍼져있는 오일이 냉매토출관을 통해 케이싱 외부로 토출될 수 있다.However, in such a conventional compressor, the refrigerant flow rate from the lower region of the casing to the upper region is increased by the pressure difference between the lower region of the casing in which the compression unit and the upper region in which the refrigerant discharge pipe is installed, and the refrigerant discharged upward through the muffler. In addition, the oil spread inside the casing may be discharged to the outside of the casing through the refrigerant discharge pipe.

따라서, 본 발명의 목적은, 압축부에서 압축된 냉매와 함께 오일이 케이싱 외부로 토출되는 것을 억제시킬 수 있는 밀폐형 회전식 압축기를 제공하는 것이다.It is therefore an object of the present invention to provide a hermetic rotary compressor which can suppress the discharge of oil out of the casing together with the refrigerant compressed in the compression section.

도 1은 본 발명에 따른 밀폐형 회전식 압축기의 단면도,1 is a cross-sectional view of a hermetic rotary compressor according to the present invention;

도 2는 도 1의 회전자의 사시도,2 is a perspective view of the rotor of FIG. 1, FIG.

도 3은 종래의 밀폐형 회전식 압축기의 종단면도이다.3 is a longitudinal sectional view of a conventional hermetic rotary compressor.

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

1 : 케이싱 3 : 압축부1: casing 3: compression part

5 : 구동모터 7 : 어큐뮬레이터5: driving motor 7: accumulator

9 : 냉매토출관 11 : 오일수용부9: refrigerant discharge pipe 11: oil receiving part

13 : 실린더 15 : 로울러13: cylinder 15: roller

21 : 머플러 23 : 고정자21: muffler 23: stator

25 : 회전자 27 : 리브25: rotor 27: rib

29 : 회전축 33 : 오일픽업베인29: axis of rotation 33: oil pick-up vane

상기 목적은, 본 발명에 따라, 냉매흡입구와 냉매토출구가 형성되어 있는 케이싱과, 상기 케이싱내 상측에 수용되어 구동력을 발생시키며 고정자 및 회전자를 갖는 구동부와, 상기 구동부의 하측에 설치되며 냉매를 압축하는 압축부를 갖는 밀폐형 회전식 압축기에 있어서, 상기 회전자의 표면에는 돌출형성되어 상기 압축부에서 압축된 냉매의 상향유동에 대향한 유동을 형성하는 나선형 리브가 설치되어 있는 것을 특징으로 하는 밀폐형 회전식 압축기에 의해 달성된다.The object of the present invention is a casing having a coolant suction port and a coolant discharge port, a drive unit accommodated in an upper side of the casing to generate a driving force, and having a stator and a rotor, and installed at a lower side of the drive unit. A hermetic rotary compressor having a compression unit for compressing, wherein the surface of the rotor is provided with a spiral rib protruding to form a flow opposed to an upward flow of the refrigerant compressed in the compression unit. Is achieved.

이하에서는 첨부도면을 참조하여 본 발명에 대해 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 밀폐형 회전식 압축기의 종단면도이며, 도 2는 도 1의 회전자의 사시도이다. 이들 도면에 도시된 바와 같이, 본 발명에 따른 밀폐형 회전식 압축기는 종래의 밀폐형 회전식 압축기와 마찬가지로, 밀폐공간을 형성하는 통형상의 케이싱(1)과, 케이싱(1)내에 수용되어 흡입된 냉매를 압축하는 압축부(3)와, 압축부(3)에 구동력을 공급하는 구동모터(5)를 갖는다. 케이싱(1)의 외측에는 압축부(3)에 기체상태의 냉매를 공급하는 어큐뮬레이터(7)가 설치되어 있다.1 is a longitudinal sectional view of the hermetic rotary compressor according to the present invention, and FIG. 2 is a perspective view of the rotor of FIG. 1. As shown in these figures, the hermetic rotary compressor according to the present invention, like the conventional hermetic rotary compressor, compresses the cylindrical casing 1 forming a hermetic space and the refrigerant contained in the casing 1 and sucked in. And a drive motor 5 for supplying a driving force to the compression section 3. On the outer side of the casing 1, an accumulator 7 for supplying a gaseous refrigerant to the compression section 3 is provided.

케이싱(1)의 상부영역에는 압축부(3)에서 압축된 냉매가 토출되는 냉매토출관(9)이 설치되어 있으며, 저부영역에는 케이싱(1)내 구동부품들의 냉각 및 윤활을 위해 오일이 수용되는 오일수용부(11)가 형성되어 있다.The upper region of the casing (1) is provided with a refrigerant discharge pipe (9) for discharging the refrigerant compressed in the compression section (3), the lower region receives the oil for cooling and lubrication of the drive parts in the casing (1) The oil receiving portion 11 is formed.

압축부(3)는 원통형상의 실린더(13)와, 실린더(13)내에 삽입되어 실린더(13) 내벽에 접촉하면서 구름운동하는 로울러(15)를 갖는다. 개방된 실린더(13)의 상하단부에는 개방영역을 차단하여 실린더(13)내에 압축공간이 형성되도록 상부플랜지(17)와 하부플랜지(19)가 각각 설치되어 있다. 상부플랜지(17)의 상측에는 압축부(3)에서 압축된 냉매를 일시수용하여 상향 토출시키는 머플러(21)가 설치되어 있다.The compression section 3 has a cylindrical cylinder 13 and a roller 15 inserted into the cylinder 13 and rolling in contact with the inner wall of the cylinder 13. The upper flange 17 and the lower flange 19 are provided at the upper and lower ends of the open cylinder 13 so as to block the open area so that a compression space is formed in the cylinder 13. An upper portion of the upper flange 17 is provided with a muffler 21 for temporarily discharging upward the refrigerant compressed by the compression unit 3.

한편, 구동모터(5)는 케이싱(1)의 내벽면에 설치되는 고정자(23)와, 고정자(23)내에 회전가능하도록 삽입되는 회전자(25)를 가진다. 회전자(25)의 원주면에는 머플러(21)에서 상향 토출되는 냉매가 고정자(23)와 회전자(25) 사이로 유동하는 것을 억제할 수 있도록 회전자(25)의 회전방향에 대해 대향되는 나선형의 리브(27)가 설치되어 있다. 회전자(25)의 중앙영역에는 회전자(25)와 일체로 회전가능하도록 회전축(29)이 설치되어 있다.On the other hand, the drive motor 5 has a stator 23 installed on the inner wall surface of the casing 1 and a rotor 25 inserted into the stator 23 so as to be rotatable. On the circumferential surface of the rotor 25, the spiral facing the rotational direction of the rotor 25 so as to suppress the refrigerant discharged upward from the muffler 21 flow between the stator 23 and the rotor 25. Ribs 27 are provided. The central shaft of the rotor 25 is provided with a rotary shaft 29 so as to be rotatable integrally with the rotor 25.

회전축(29)은 오일수용부(11)를 향해 하향 연장되어 있으며, 하부영역에는 로울러(15)의 내측에 결합되어 로울러(15)를 편심회전시키는 편심부(31)가 형성되어 있다. 오일수용부(11)의 오일에 잠겨있는 회전축(29)의 하단부에는 회전축(29)과 일체로 회전하며 오일을 상향 이동시켜 구동부품에 공급하는 오일픽업베인(33)이 설치되어 있다.The rotary shaft 29 extends downward toward the oil receiving portion 11, and an eccentric portion 31 is coupled to the inner side of the roller 15 to eccentrically rotate the roller 15. At the lower end of the rotary shaft 29 immersed in the oil of the oil receiving portion 11, an oil pick-up vane 33 which rotates integrally with the rotary shaft 29 and moves the oil upwards to supply the driving parts is installed.

이상과 같은 구성에 의하여, 회전축(29)이 회전하면 어큐뮬레이터(11)에서 기체상태의 냉매가 실린더(13)내로 유입된다. 유입된 냉매는 로울러(15)의 구름운동에 의해 압축되어 머플러(21)를 통해 상향 토출된다. 또한, 회전축(29)의 회전에 의해 오일이 오일픽업베인(33)을 통해 상향 이동하여 각 구동부품들의 윤활을 위해 공급되며, 상향 이동된 오일중 일부는 회전축(29)의 회전에 의해 케이싱(1)내로 비산된다.By the above configuration, when the rotating shaft 29 rotates, the gaseous refrigerant flows into the cylinder 13 from the accumulator 11. The introduced refrigerant is compressed by the rolling motion of the roller 15 and discharged upward through the muffler 21. In addition, the oil is moved upward through the oil pick-up vanes 33 by the rotation of the rotary shaft 29 and supplied for lubrication of the respective driving parts, and some of the oil moved upward is casing 1 by the rotation of the rotary shaft 29. Scattered).

케이싱(1)내에 퍼져 있는 오일은 머플러(21)에 토출된 압축된 냉매와 함께 상향 이동하여 케이싱(1)의 내벽면과 고정자(23) 사이를 통해 케이싱(1)의 상부영역으로 향하게 된다. 케이싱(1)의 상부영역으로 향한 압축냉매와 오일중 일부는 회전축(29)의 외주면에 형성된 나선형의 리브(27)에 의해 하부영역으로 향하게 된다. 이렇게 케이싱(1)의 하부영역을 향한 유동흐름은 케이싱(1)의 상부영역과 하부영역의 압력차가 발생하는 것을 억제함에 따라 케이싱(1)의 상부영역으로 향하는 냉매의 운동에너지가 감소하게 되어 오일이 냉매토출관(9)을 통해 케이싱(1) 외부로 토출되는 것을 억제시킬 수 있다.The oil spread in the casing 1 moves upward with the compressed refrigerant discharged to the muffler 21 and is directed to the upper region of the casing 1 through the inner wall surface of the casing 1 and the stator 23. Some of the compressed refrigerant and oil directed to the upper region of the casing 1 are directed to the lower region by the helical ribs 27 formed on the outer circumferential surface of the rotating shaft 29. As such, the flow flow toward the lower region of the casing 1 suppresses the pressure difference between the upper region and the lower region of the casing 1 so that the kinetic energy of the refrigerant directed to the upper region of the casing 1 decreases. Discharge to the outside of the casing 1 through this refrigerant discharge pipe 9 can be suppressed.

이상에서 설명한 바와 같이, 본 발명에 따르면, 압축부에서 압축된 냉매와 함께 오일이 케이싱 외부로 토출되는 것을 억제시킬 수 있는 밀폐형 회전식 압축기가 제공된다.As described above, according to the present invention, there is provided a hermetic rotary compressor which can suppress the discharge of oil to the outside of the casing together with the refrigerant compressed in the compression section.

Claims (1)

냉매흡입구와 냉매토출구가 형성되어 있는 케이싱과, 상기 케이싱내 상측에 수용되어 구동력을 발생시키며 고정자 및 회전자를 갖는 구동부와, 상기 구동부의 하측에 설치되며 냉매를 압축하는 압축부를 갖는 밀폐형 회전식 압축기에 있어서,In a hermetic rotary compressor having a casing having a coolant suction port and a coolant discharge port formed therein, a drive unit accommodated at an upper side of the casing to generate a driving force, and having a stator and a rotor, and a compression unit installed below the drive unit and compressing the coolant. In 상기 회전자의 표면에는 돌출형성되어 상기 압축부에서 압축된 냉매의 상향유동에 대향한 유동을 형성하는 나선형 리브가 설치되어 있는 것을 특징으로 하는 밀폐형 회전식 압축기.And a spiral rib is formed on the surface of the rotor to protrude and form a flow opposite to the upward flow of the refrigerant compressed by the compression unit.
KR1019980021052A 1998-06-08 1998-06-08 Closed typed rotary compressor KR20000001029A (en)

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