KR200177023Y1 - Bottom cap structure for rotary compressor - Google Patents

Bottom cap structure for rotary compressor Download PDF

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Publication number
KR200177023Y1
KR200177023Y1 KR2019990022096U KR19990022096U KR200177023Y1 KR 200177023 Y1 KR200177023 Y1 KR 200177023Y1 KR 2019990022096 U KR2019990022096 U KR 2019990022096U KR 19990022096 U KR19990022096 U KR 19990022096U KR 200177023 Y1 KR200177023 Y1 KR 200177023Y1
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KR
South Korea
Prior art keywords
oil
rotary compressor
lower cover
feeder
rotating shaft
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KR2019990022096U
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Korean (ko)
Inventor
이현묵
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엘지전자주식회사
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Priority to KR2019990022096U priority Critical patent/KR200177023Y1/en
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Publication of KR200177023Y1 publication Critical patent/KR200177023Y1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121Casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/16Filtration; Moisture separation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02Lubrication; Lubricant separation
    • F04C29/026Lubricant separation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/30Casings or housings

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

Abstract

본 고안 밀폐형 회전식 압축기의 하부 덮개구조는 오일이 수납되는 하부 덮개의 볼록한 중심부분을 오일 피더가 설치된 회전축의 축중심에서 벗어 나도록 형성하여, 오일 피더에 의하여 오일이 흡상될때 오일에 혼합되어 하부 덮개의 중심부분에 모여있는 이물질들이 오일 피더에 의하여 흡상되어 습동부로 공급되는 것을 방지할 수 있다.The bottom cover structure of the enclosed rotary compressor of the present invention forms the convex center portion of the lower cover in which the oil is stored out of the shaft center of the rotating shaft in which the oil feeder is installed, and is mixed with oil when the oil is sucked up by the oil feeder, Foreign matter gathered in the central part can be prevented from being sucked up by the oil feeder and supplied to the sliding part.

Description

밀폐형 회전식 압축기의 하부 덮개구조{BOTTOM CAP STRUCTURE FOR ROTARY COMPRESSOR}BOTTOM CAP STRUCTURE FOR ROTARY COMPRESSOR}

본 고안은 밀폐형 회전식 압축기의 하부 덮개구조에 관한 것으로, 특히 하부 덮개의 형상을 변경하여 강도를 향상시킴과 아울러 오일이 혼입되어 있는 이물질에 의하여 습동부가 손상되는 것을 방지하도록 하는데 적합한 밀폐형 회전식 압축기의 하부 덮개구조에 관한 것이다.The present invention relates to a bottom cover structure of a hermetic rotary compressor, and more particularly, to improve the strength by changing the shape of the lower cover and to prevent the sliding part from being damaged by foreign substances in which oil is mixed. It relates to a lower cover structure.

냉매가스를 압축하기 위한 압축기의 한 기종인 밀폐형 회전식 압축기의 구조가 도 1에 도시되어 있는 바, 이를 간단히 설명하면 다음과 같다.The structure of the hermetic rotary compressor, which is one type of the compressor for compressing the refrigerant gas, is shown in FIG. 1.

밀폐된 용기(1)의 내부 상측에 고정자(2)와 회전자(3)로 구성되는 전동기구부(17)가 구비되어 있고, 그 전동기구부(17)의 하측에는 상기 회전자(3)에 압입되는 회전축(4)의 하단부에 형성되는 편심부(5)가 위치되는 압축실(6)이 형성되도록 실린더(7) 및 상,하부베어링(8)(8')으로 구성되는 압축기구부(9)가 구비되어 있으며, 상기 용기(1)의 외측에는 오일을 분리하는 어큐뮬레이터(10)가 설치되어 있다.An electric mechanism part 17 composed of a stator 2 and a rotor 3 is provided on the inner upper side of the sealed container 1, and is pressed into the rotor 3 below the electric mechanism part 17. Compressor 9 consisting of a cylinder 7 and upper and lower bearings 8, 8 ′ such that a compression chamber 6 in which the eccentric portion 5 formed at the lower end of the rotating shaft 4 is formed is formed. Is provided, the accumulator 10 for separating the oil is provided on the outside of the container (1).

상기 밀폐 용기(1)는 원통형 몸체(11)의 상,하측에 상부 덮개(12)와 하부 덮개(13)가 접합되어 있고, 상기 하부 덮개(13)는 하측으로 볼록하게 형성되어 오일(14)이 수납되고, 그와 같은 오일(14)은 회전축(4)의 하단부에 설치된 오일 피더(15)에 의하여 습동부로 공급할 수 있도록 되어 있다.The airtight container 1 has an upper cover 12 and a lower cover 13 bonded to upper and lower sides of the cylindrical body 11, and the lower cover 13 is formed to be convex downwards so that the oil 14 may be formed. This oil 14 is accommodated and can be supplied to the sliding part by the oil feeder 15 provided in the lower end part of the rotating shaft 4.

도면부호중 미설명 부호 16은 토출관이다.Reference numeral 16 in the drawing denotes a discharge tube.

상기와 같이 구성되어 있는 종래 밀폐형 회전식 압축기는 전원이 인가되면 회전자(3)가 회전을 하고, 그 회전자(3)에 결합된 회전축(4)이 회전을 하며, 회전축(4)의 편심부(5)가 압축실(6)내에서 회전을 하면서 어큐뮬레이터(10)를 통하여 압축실(6)로 유입된 냉매가스를 압축한다.In the conventional hermetic rotary compressor configured as described above, when the power is applied, the rotor 3 rotates, the rotary shaft 4 coupled to the rotor 3 rotates, and the eccentric portion of the rotary shaft 4 (5) rotates in the compression chamber (6) while compressing the refrigerant gas introduced into the compression chamber (6) through the accumulator (10).

상기와 같이 압축되는 냉매가스는 상부 베어링(8)에 밸브(미도시)를 통하여 토출되고, 그와 같이 토출된 고압의 냉매가스는 회전자(3)와 고정자(2) 사이의 틈을 통하여 상측으로 이동되어 토출관(16)을 통하여 용기(1)의 외부로 토출되어 진다.The refrigerant gas compressed as described above is discharged to the upper bearing 8 through a valve (not shown), and the high pressure refrigerant gas discharged as described above is upward through a gap between the rotor 3 and the stator 2. And discharged to the outside of the container 1 through the discharge pipe 16.

상기와 같이 일련의 압축과 토출이 진행되는 동안 회전축(4)에 설치된 오일 피더(15)는 하부덮개(13)에 수납되어 있는 오일(14)을 흡상하여 습동부에 공급하게 된다.As described above, the oil feeder 15 installed on the rotating shaft 4 during the series of compression and discharge processes sucks the oil 14 stored in the lower cover 13 and supplies it to the sliding part.

그러나, 상기와 같이 구성되어 있는 종래 밀폐형 회전식 압축기는 하부 덮개(13)의 볼록하게 형성된 중심(C)부분에 오일(15)에 혼입된 이물질(P)들이 모이게 되는데, 압축기의 동작시 하부 덮개(13)의 중심(C)의 상측에 설치된 오일 피더(15)에 의하여 오일(14)과 함께 이물질(P)이 습동부로 공급되면서 부착되어 압축효율을 저하시키는 요인이되는 문제점이 있었다.However, in the conventional hermetic rotary compressor configured as described above, foreign substances P mixed in the oil 15 are collected in the convexly formed center C of the lower cover 13, and the lower cover ( The foreign matter P is supplied to the sliding part together with the oil 14 by the oil feeder 15 installed on the upper side of the center C of 13), thereby causing a problem of reducing the compression efficiency.

상기와 같은 문제점을 감안하여 안출한 본 고안의 목적은 압축기의 동작시 오일 피더에 의하여 습동부로 오일과 함께 이물질이 공급되는 것을 방지하도록 하는데 적합한 밀폐형 회전식 압축기의 하부 덮개구조를 제공함에 있다.An object of the present invention devised in view of the above problems is to provide a bottom cover structure of a hermetic rotary compressor suitable for preventing foreign substances from being supplied to the sliding part by the oil feeder during operation of the compressor.

도 1은 종래 밀폐형 회전식 압축기의 구조를 보인 종단면도.1 is a longitudinal sectional view showing a structure of a conventional hermetic rotary compressor.

도 2는 본 고안 하부 덮개구조를 갖는 밀폐형 회전식 압축기의 구조를 보인 종단면도.Figure 2 is a longitudinal sectional view showing the structure of a hermetic rotary compressor having a bottom cover structure of the present invention.

도 3은 본 고안의 요부구성인 하부 덮개의 구조를 보인 사시도.Figure 3 is a perspective view showing the structure of the lower cover which is the main component of the present invention.

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

25 : 회전축 26 : 오일25: axis of rotation 26: oil

27 : 오일 피더 33 : 하부 덮개27: oil feeder 33: lower cover

C,C1 : 중심C, C1: center

상기와 같은 본 고안의 목적을 달성하기 위하여 회전축의 하단부에 오일 피더가 설치되어 있고, 그 오일 피더가 하부 덮개에 수납되어 있는 오일을 흡상하여 습동부로 공급하도록 되어 있는 밀폐형 회전식 압축기에 있어서, 상기 하부 덮개에서 이물질이 모이는 중심부분이 회전축의 중심에서 벗어난 곳에 볼록하게 형성되는 것을 특징으로 하는 밀폐형 회전식 압축기의 하부 덮개구조가 제공된다.In order to achieve the object of the present invention as described above, the oil feeder is installed at the lower end of the rotary shaft, the oil feeder is a sealed rotary compressor to suck the oil stored in the lower cover to supply to the sliding part, Provided is a lower cover structure of a hermetic rotary compressor, wherein a central portion where foreign matters collects in the lower cover is formed convexly away from the center of the rotating shaft.

이하, 상기와 같이 구성되는 본 고안 밀폐형 회전식 압축기의 하부 덮개구조를 첨부된 도면의 실시예를 참고하여 보다 상세히 설명하면 다음과 같다.Hereinafter, with reference to the embodiment of the accompanying drawings the lower cover structure of the present invention hermetic rotary compressor configured as described above in detail as follows.

도 2는 본 고안 하부 덮개구조를 갖는 밀폐형 회전식 압축기의 구조를 보인 종단면도이고, 도 3은 본 고안의 요부구성인 하부 덮개의 구조를 보인 사시도로서, 도시된 바와 같이, 밀폐 용기(21)의 내부 상측에 고정자(22)와 회전자(23)로 구성되는 전동기구부(24)가 구비되어 있고, 그 전동기구부(24)의 하측에는 상기 회전자(43)에 압입되는 회전축(25)의 하단부에 형성되는 편심부(26)가 위치되는 압축실(27)이 형성되도록 실린더(28) 및 상,하부베어링(29)(29')으로 구성되는 압축기구부(30)가 구비되어 있으며, 상기 밀폐 용기(21)는 원통형 몸체(31)의 상,하측에 상부 덮개(32)와 하부 덮개(33)가 접합되어 있고, 상기 회전축(25)의 하단부에는 오일(34)을 흡상하기 위한 오일 피더(27)가 설치되어 있는 압축기의 기본 구성은 종래와 유사하다.Figure 2 is a longitudinal sectional view showing a structure of a hermetic rotary compressor having a bottom cover structure of the present invention, Figure 3 is a perspective view showing the structure of the bottom cover which is a main component of the present invention, as shown, of the sealed container 21 An electric mechanism part 24 composed of a stator 22 and a rotor 23 is provided at an upper side thereof, and a lower end portion of the rotary shaft 25 press-fitted to the rotor 43 is provided below the electric mechanism part 24. Compressor 30 is composed of a cylinder 28 and upper and lower bearings 29 and 29 'to form a compression chamber 27 in which an eccentric portion 26 is formed. The container 21 has an upper cover 32 and a lower cover 33 bonded to upper and lower sides of the cylindrical body 31, and an oil feeder for sucking oil 34 on the lower end of the rotating shaft 25. The basic configuration of the compressor in which 27 is installed is similar to the conventional one.

여기서, 본 고안은 상기 하부 덮개(33)의 볼록하게 형성된 중심(C) 부분이 오일 피더(27)가 설치된 회전축(25)의 축중심(C1)에서 벗어나도록 되어 있어서, 상기 하부 덮개(32)의 중심(C)에 모이는 이물질(P)들이 오일 피더(27)에 의하여 흡상되지않도록 되어 있다.Here, the present invention is such that the convex center (C) portion of the lower cover 33 is to be out of the shaft center (C1) of the rotary shaft 25 is installed, the oil feeder 27, the lower cover 32 The foreign matters (P) gathered at the center (C) of the is not drawn by the oil feeder (27).

도면중 미설명 부호 35는 어큐뮬레이터이다.Reference numeral 35 in the figure is an accumulator.

상기와 같은 하부 덮개구조를 갖는 밀폐형 회전식 압축기의 동작은 종래와 유사하다.The operation of the hermetic rotary compressor having the bottom cover structure as described above is similar to the conventional.

즉, 전원이 인가되고 회전자(23)가 회전을 하면 회전자(23)에 결합된 회전축(25)이 회전을 하며, 회전축(25)의 편심부(26)가 압축실(27)내에서 회전을 하면서 어큐뮬레이터(35)를 통하여 압축실(27)로 유입된 냉매가스를 압축한다.That is, when power is applied and the rotor 23 rotates, the rotating shaft 25 coupled to the rotor 23 rotates, and the eccentric portion 26 of the rotating shaft 25 is in the compression chamber 27. While rotating, the refrigerant gas introduced into the compression chamber 27 through the accumulator 35 is compressed.

그리고, 상기와 같이 압축이 진행되는 동안 회전축(25)에 설치된 오일 피더(27)는 하부덮개(32)에 수납되어 있는 오일(34)을 흡상하여 습동부에 공급하게 되는데, 이때 오일(34)에 혼합되어 있는 이물질들은 회전축(25)의 축중심(C1)에서 벗어나도록 형성된 하부 덮개(32)의 중심(C)부분에 모여있기 때문에 오일(34)과 함께 흡상되지 않는다.In addition, the oil feeder 27 installed on the rotating shaft 25 while the compression is carried out as described above to suck the oil 34 stored in the lower cover 32 to supply to the sliding part, the oil 34 The foreign substances mixed in the oil are not drawn together with the oil 34 because they are collected at the center C portion of the lower cover 32 formed to deviate from the axis center C1 of the rotation shaft 25.

이상에서 상세히 설명한 바와 같이, 본 고안 밀폐형 회전식 압축기의 하부 덮개구조는 볼록하게 형성된 하부덮개의 중심부분을 오일 피더가 설치되는 회전축의 중심부분에서 벗어나도록 형성하고, 오일에 혼입되어 하부 덮개의 중심부분에 모이는 이물질들이 압축기의 동작시 오일과 함께 흡상되는 것을 방지하여, 습동부에 이물질이 유입되어 발생되는 압축기의 효율저하를 방지하는 효과가 있다.As described in detail above, the lower lid structure of the enclosed rotary compressor of the present invention is formed so that the central portion of the lower cover is convexly formed out of the central portion of the rotating shaft on which the oil feeder is installed, and is mixed with oil to form the central portion of the lower cover. By preventing the foreign matter gathered in the oil is sucked with the oil during the operation of the compressor, there is an effect to prevent the efficiency of the compressor caused by the foreign matter is introduced into the sliding part.

Claims (1)

회전축의 하단부에 오일 피더가 설치되어 있고, 그 오일 피더가 하부 덮개에 수납되어 있는 오일을 흡상하여 습동부로 공급하도록 되어 있는 밀폐형 회전식 압축기에 있어서, 상기 하부 덮개에서 이물질이 모이는 중심부분이 회전축의 중심에서 벗어난 곳에 볼록하게 형성되는 것을 특징으로 하는 밀폐형 회전식 압축기의 하부 덮개구조.An oil feeder is provided at the lower end of the rotating shaft, and the oil feeder sucks oil stored in the lower cover and supplies the oil to the sliding part. The bottom cover structure of the hermetic rotary compressor, characterized in that it is formed convexly away from the center.
KR2019990022096U 1999-10-14 1999-10-14 Bottom cap structure for rotary compressor KR200177023Y1 (en)

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