KR100365000B1 - Structure for engaging compressing unit in rotary compressor - Google Patents

Structure for engaging compressing unit in rotary compressor Download PDF

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Publication number
KR100365000B1
KR100365000B1 KR1020000061636A KR20000061636A KR100365000B1 KR 100365000 B1 KR100365000 B1 KR 100365000B1 KR 1020000061636 A KR1020000061636 A KR 1020000061636A KR 20000061636 A KR20000061636 A KR 20000061636A KR 100365000 B1 KR100365000 B1 KR 100365000B1
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KR
South Korea
Prior art keywords
compression mechanism
upper bearing
cylinder
welding
rotary compressor
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KR1020000061636A
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Korean (ko)
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KR20020030617A (en
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박기원
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주식회사 엘지이아이
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Priority to KR1020000061636A priority Critical patent/KR100365000B1/en
Publication of KR20020030617A publication Critical patent/KR20020030617A/en
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Publication of KR100365000B1 publication Critical patent/KR100365000B1/en

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    • 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
    • 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
    • F04C29/04Heating; Cooling; Heat insulation
    • 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
    • F04C29/06Silencing
    • F04C29/065Noise dampening volumes, e.g. muffler chambers
    • 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
    • F04C29/06Silencing
    • F04C29/068Silencing the silencing means being arranged inside the pump housing
    • 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
    • F04C18/30Rotary-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
    • F04C18/34Rotary-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
    • F04C18/356Rotary-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
    • 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
    • F04C2230/00Manufacture
    • F04C2230/20Manufacture essentially without removing material
    • F04C2230/23Manufacture essentially without removing material by permanently joining parts together
    • F04C2230/231Manufacture essentially without removing material by permanently joining parts together by welding
    • 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
    • F04C2240/50Bearings

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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 발명은 밀폐형 회전식 압축기의 압축기구부 고정구조에 관한 것으로, 본 발명은 가스가 압축되는 내부공간이 구비된 실린더와 그 실린더의 상하면에 각각 결합되어 내부공간을 밀폐시키는 상부 베어링 및 하부 베어링을 포함하도록 구성되어 냉매 가스를 압축시키는 압축기구부의 상부 베어링 또는 하부 베어링의 외벽이 상기 압축기구부가 내삽되는 밀폐용기의 내벽에 용접에 의해 접합되며 그 용접되는 상부 베어링 또는 하부 베어링에 용접열의 전달을 억제하는 열전달 방지부가 형성되도록 구성하여 상기 압축기구부를 구성하는 실린더의 변형을 방지함은 물론 상부 베어링의 변형을 방지함으로써 부품의 작동을 원활하게 할 뿐만 아니라 압축되는 냉매 가스의 누설을 방지하여 압축 성능을 높일 수 있도록 한 것이다.The present invention relates to a fixed structure of the compression mechanism of the hermetic rotary compressor, the present invention is to include a cylinder having an inner space in which gas is compressed and an upper bearing and a lower bearing respectively coupled to the upper and lower surfaces of the cylinder to seal the inner space. The outer wall of the upper bearing or the lower bearing of the compression mechanism portion for compressing the refrigerant gas is joined by welding to the inner wall of the hermetically sealed container in which the compression mechanism is inserted, and heat transfer inhibiting the transfer of welding heat to the welded upper bearing or the lower bearing. The prevention part is formed to prevent the deformation of the cylinder constituting the compression mechanism, as well as the deformation of the upper bearing to facilitate the operation of the parts, and to prevent the leakage of the refrigerant gas to be compressed to increase the compression performance. It would be.

Description

밀폐형 회전식 압축기의 압축기구부 고정구조{STRUCTURE FOR ENGAGING COMPRESSING UNIT IN ROTARY COMPRESSOR}Compressor part fixing structure of hermetic rotary compressor {STRUCTURE FOR ENGAGING COMPRESSING UNIT IN ROTARY COMPRESSOR}

본 발명은 밀폐형 회전식 압축기의 압축기구부 고정구조에 관한 것으로, 특히 가스가 압축되는 압축기구부의 고정 결합시 그 압축기구부를 구성하는 부품들의 변형을 최소화할 수 있도록 한 밀폐형 회전식 압축기의 압축기구부 고정구조에 관한 것이다.The present invention relates to a fixed structure of the compression mechanism of the hermetic rotary compressor, and more particularly to the fixed structure of the compression mechanism of the hermetic rotary compressor to minimize the deformation of the components constituting the compression mechanism during the fixed compression of the compression mechanism of the gas is compressed. It is about.

일반적으로 밀폐형 회전식 압축기는, 도 1, 2에 도시한 바와 같이, 소정의 내부체적을 갖는 밀폐용기(1)와, 상기 밀폐용기(1) 내부에 설치되어 구동력을 발생시키는 전동기구부와, 상기 전동기구부의 구동력을 전달받아 냉매가스를 압축하는 압축기구부로 구성된다.In general, the hermetic rotary compressor includes a hermetically sealed container 1 having a predetermined internal volume, an electric mechanism unit provided inside the hermetically sealed container 1 and generating a driving force, and the electric motor. Compressor section for compressing the refrigerant gas is received by the driving force of the mechanism.

상기 전동기구부는 밀폐용기(1)내에 고정 결합되는 고정자(2)와, 상기 고정자(2)의 내부에 삽입되어 회전하는 회전자(3)를 포함하여 구성된다.The electric machine part includes a stator 2 fixedly coupled to the sealed container 1 and a rotor 3 inserted into the stator 2 to rotate.

상기 압축기구부는 상기 회전자(3)의 내경에 압입되고 하부에 편심부(4a)가 형성된 회전축(4)과, 소정 형상의 몸체(5a)내부에 내부공간(P)이 형성되고 상기 몸체(5a)에 일정 폭을 갖는 베인 슬롯(5b)이 형성되며 상기 베인 슬롯(5b)의 측부에 내부공간(P)으로 가스가 흡입되는 흡입구(5c)가 형성되고 상기 베인 슬롯(5b)의 타측부에 가스가 토출되는 토출포트(5d)가 구비되어 상기 밀폐용기(1)의 내부에 설치됨과 아울러 그 내부공간(P)에 상기 회전축의 편심부(4a)가 삽입되는 실린더(5)와, 상기 회전축(4)에 삽입됨과 아울러 실린더(5)의 상하면에 볼트(6)의 체결에 의해 각각결합되어 회전축(4)을 지지하는 상부 베어링(7) 및 하부 베어링(8)과, 상기 실린더(5)의 내부공간(P) 내주면에 선접촉되도록 회전축의 편심부(4a)에 삽입되어 회전축(4)의 회전에 따라 자전 및 공전하는 롤링 피스톤(9)과, 상기 실린더(5)의 베인 슬롯(5b)에 직선운동 가능하도록 삽입되어 그 단부가 상기 롤링 피스톤(9)의 외주면과 슬라이딩 접촉되면서 실린더 내부공간(P)을 고압부(a)와 저압부(b)로 구획하는 베인(10)을 포함하여 구성된다.The compression mechanism is a rotary shaft 4 is pressed into the inner diameter of the rotor 3, the eccentric portion 4a is formed at the bottom, and the inner space (P) is formed inside the body 5a of a predetermined shape and the body ( A vane slot 5b having a predetermined width is formed at 5a), and an inlet 5c through which gas is sucked into the inner space P is formed at the side of the vane slot 5b, and the other side of the vane slot 5b. A cylinder 5 having a discharge port 5d through which gas is discharged and installed in the sealed container 1 and into which the eccentric portion 4a of the rotating shaft is inserted into the inner space P; An upper bearing 7 and a lower bearing 8 which are inserted into the rotating shaft 4 and coupled to the upper and lower surfaces of the cylinder 5 by fastening the bolts 6, respectively, to support the rotating shaft 4, and the cylinder 5. Is inserted into the eccentric portion 4a of the rotating shaft so as to be in linear contact with the inner circumferential surface P of the inner space P). It is inserted into the rolling piston 9 and the vane slot 5b of the cylinder 5 so that the end thereof is in sliding contact with the outer circumferential surface of the rolling piston 9 so that the cylinder inner space P is connected to the high pressure portion (a). ) And a vane 10 partitioned into a low pressure portion (b).

그리고 상기 상부 베어링(7)은 일정 두께와 면적을 갖는 환형의 플랜지부(7a)의 가운데 일정 외경 및 높이를 갖는 지지부(7b)가 형성되고 그 지지부(7b)의 가운데를 중심으로 관통된 축 삽입구멍(7c)이 형성되며 상기 플랜지부(7a)의 일측에 상기 토출포트(5a)와 연통되도록 토출공(7d)이 관통 형성되고 그 플랜지부(7a)의 상면에 토출공(7d)을 포함하는 소정의 면적과 깊이를 갖도록 음각진 밸브 장착홈(미도시)이 형성되어 이루어진다. 그리고 상기 상부 베어링(7)의 밸브 장착홈내에 상기 토출공(7d)을 개폐하는 개폐수단(11)이 고정 결합되고 그 축 삽입구멍(7c)에 회전축(4)이 삽입되어 지지된다. 그리고 상기 상부 베어링(7)의 토출공(7d)으로 토출되는 냉매 가스의 맥동 소음을 저감시키는 소음기(12)가 상기 상부 베어링의 플랜지부(7a)를 복개하도록 그 플랜지부(7a)의 상단 테두리에 끼워져 결합되어 있다.In addition, the upper bearing 7 has a support portion 7b having a constant outer diameter and a height formed in the center of the annular flange portion 7a having a predetermined thickness and area, and a shaft inserted through the center of the support portion 7b. A hole 7c is formed, and a discharge hole 7d is formed through one side of the flange portion 7a so as to communicate with the discharge port 5a, and a discharge hole 7d is formed on the upper surface of the flange portion 7a. An intaglio valve mounting groove (not shown) is formed to have a predetermined area and depth. The opening and closing means 11 for opening and closing the discharge hole 7d in the valve mounting groove of the upper bearing 7 is fixedly coupled, and the rotating shaft 4 is inserted into the shaft insertion hole 7c to be supported. And the upper edge of the flange portion 7a so that the silencer 12 for reducing the pulsation noise of the refrigerant gas discharged to the discharge hole 7d of the upper bearing 7 covers the flange portion 7a of the upper bearing It is fitted in and joined.

상기 밀폐용기(1)의 일측에 상기 실린더의 흡입구(5c)와 연통되도록 흡입관(13)이 결합되고 그 측부에 가스가 토출되는 토출관(14)이 결합되며 그 밀폐용기(1) 저면에 슬라이딩이 일어나는 부품에 공급되는 오일이 채워져 있다.The suction tube 13 is coupled to one side of the sealed container 1 so as to communicate with the suction port 5c of the cylinder, and the discharge tube 14 for discharging the gas is coupled to the side thereof and slides on the bottom surface of the sealed container 1. The oil supplied to the part that takes place is filled.

상기한 바와 같은 밀폐형 회전식 압축기의 작동은, 먼저 전원이 인가되면고정자(2)와 회전자(3)의 상호작용에 의해 회전자(3)가 회전하면서 상기 회전축(4)을 회전시키게 되고 상기 회전축(4)의 회전에 의해 회전축의 편심부(4a)에 결합된 롤링 피스톤(9)이 베인(10)과 접촉된 상태에서 실린더 내부공간(P)에서 상기 회전축(4)을 중심으로 공전 운동하게 된다. 상기 롤링 피스톤(9)의 공전 운동에 의해 실린더 내부공간(P)의 체적변화로 저온저압의 냉매가스가 흡입관(13)과 흡입구(5c)를 통해 실린더 내부공간(P)으로 흡입되어 고온고압의 상태로 압축되며 그 압축된 고온고압의 냉매가스는 토출포트(5d) 및 토출공(7d)을 통해 토출되며 그 토출된 냉매 가스는 상기 밀폐용기(1)의 상부에 설치된 토출관(14)을 통해 밀폐용기(1)외부로 토출된다.In the operation of the hermetic rotary compressor as described above, when the power is first applied, the rotor 3 rotates while the rotor 3 rotates by the interaction between the stator 2 and the rotor 3, and the rotary shaft The rotating piston 9 coupled to the eccentric portion 4a of the rotating shaft by the rotation of (4) makes an orbital motion about the rotating shaft 4 in the cylinder inner space P in a state in contact with the vane 10. do. The low temperature low pressure refrigerant gas is sucked into the cylinder internal space P through the suction pipe 13 and the suction port 5c due to the volume change of the cylinder internal space P by the orbiting motion of the rolling piston 9. The compressed high-temperature high-pressure refrigerant gas is discharged through the discharge port 5d and the discharge hole 7d, and the discharged refrigerant gas discharges the discharge tube 14 installed on the sealed container 1 above. It is discharged to the outside of the sealed container (1) through.

한편, 상기 전동기구부의 구동력을 전달받아 냉매 가스를 압축하는 압축기구부가 상기 밀폐용기(1)에 장착되는 구조는 압축기구부를 구성하는 실린더(5)의 외주면이 상기 밀폐용기(1)의 내벽에 접촉된 상태에서 용접에 의해 고정 결합된다. 상기 용접은 보통 밀폐용기(1)를 접지시킨 상태에서 3점에서 용접봉으로 용접하는 3점 용접에 의해 이루어진다.On the other hand, in the structure in which the compression mechanism for compressing the refrigerant gas by receiving the driving force of the electric mechanism unit is mounted on the sealed container (1) the outer peripheral surface of the cylinder (5) constituting the compression mechanism is on the inner wall of the sealed container (1) It is fixedly coupled by welding in the contacted state. The welding is usually performed by three-point welding by welding with a welding rod at three points with the sealed container 1 grounded.

그러나 상기 압축기구부를 구성하는 실린더(5)가 밀폐용기(1)의 내벽에 접촉된 상태에서 용접에 의해 상기 실린더(5)가 밀폐용기(1)에 접합됨에 의해 상기 압축기구부가 고정 결합되는 구조는 용접시 발생되는 고온이 열이 실린더(5)의 외주면을 통해 쉽게 전체로 전달되어 실린더(5)에 열변형이 발생하게 됨으로써 실린더(5)의 내부공간(P) 및 베인 슬롯(5b)의 변형이 발생되어 냉매가스를 압축할 때 압축된 냉매가스가 누설되므로 인하여 압축 효율을 저하시키게 될 뿐만 아니라 소음을 발생시키게 되는 문제점이 있었다.However, when the cylinder 5 constituting the compression mechanism is in contact with the inner wall of the hermetic container 1, the compression mechanism is fixedly coupled by the cylinder 5 being joined to the hermetic container 1 by welding. The high temperature generated during welding is easily transferred to the whole through the outer circumferential surface of the cylinder (5) so that heat deformation occurs in the cylinder (5) of the inner space (P) and the vane slot (5b) of the cylinder (5) When the deformation occurs to compress the refrigerant gas, the compressed refrigerant gas is leaked, thereby reducing the compression efficiency and generating noise.

상기한 바와 같은 문제점을 감안하여 안출한 본 발명의 목적은 가스가 압축되는 압축기구부의 고정 결합시 그 압축기구부를 구성하는 부품들의 변형을 최소화할 수 있도록 한 밀폐형 회전식 압축기의 압축기구부 고정구조를 제공함에 있다.The object of the present invention devised in view of the above problems is to provide a fixed structure of the compression mechanism of the hermetic rotary compressor to minimize the deformation of the components constituting the compression mechanism during the fixed coupling of the compression mechanism of the gas is compressed. Is in.

도 1,2는 일반적인 밀폐형 회전식 압축기를 도시한 정단면도 및 평단면도,1,2 is a front sectional view and a plan sectional view showing a general hermetic rotary compressor;

도 3,4는 본 발명의 압축기구부 고정구조가 구비된 밀폐형 회전식 압축기 압축기구부의 정단면도 및 평면도,3,4 is a front sectional view and a plan view of a hermetic rotary compressor compression mechanism provided with a compression mechanism fixing structure of the present invention;

도 5,6은 본 발명의 밀폐형 회전식 압축기의 압축기구부 고정구조의 평단면도 및 정단면도,5, 6 is a plan sectional view and a front sectional view of the fixed structure of the compression mechanism of the rotary compressor of the present invention,

도 7은 본 발명의 밀폐형 회전식 압축기 압축기구부 고정구조를 구성하는 장착부의 다른 변형예를 도시한 단면도.7 is a cross-sectional view showing another modification of the mounting portion constituting the hermetic rotary compressor compression mechanism fixed structure of the present invention.

(도면의 주요부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

1 ; 밀폐용기 5 ; 실린더One ; Airtight containers 5; cylinder

8 ; 하부 베어링 20 ; 상부 베어링8 ; Lower bearing 20; Upper bearing

21 ; 상부 베어링 플랜지부 22 ; 상부 베어링 지지부21; Upper bearing flange portion 22; Upper bearing support

23 ; 상부 베어링 축 삽입구멍 24 ; 열전달 방지부23; Upper bearing shaft insertion hole 24; Heat transfer prevention

25 ; 장착부 30 ; 소음기25; Mounting part 30; silencer

P ; 실린더 내부공간P; Cylinder inner space

상기한 바와 같은 본 발명의 목적을 달성하기 위하여 가스가 압축되는 내부공간이 구비된 실린더와 그 실린더의 상하면에 각각 결합되어 내부공간을 밀폐시키는 상부 베어링 및 하부 베어링을 포함하도록 구성되어 냉매 가스를 압축시키는 압축기구부의 상부 베어링 또는 하부 베어링의 외벽이 상기 압축기구부가 내삽되는 밀폐용기의 내벽에 용접에 의해 접합되며 그 용접되는 상부 베어링 또는 하부 베어링에 용접열의 전달을 억제하는 열전달 방지부가 형성된 것을 특징으로 하는 밀폐형 회전식 압축기의 압축기구부 고정구조가 제공된다.In order to achieve the object of the present invention as described above is configured to include a cylinder having an inner space in which the gas is compressed and an upper bearing and a lower bearing coupled to the upper and lower surfaces of the cylinder to seal the inner space to compress the refrigerant gas The outer wall of the upper bearing or the lower bearing of the compression mechanism unit is joined to the inner wall of the hermetically sealed container in which the compression mechanism is interposed by welding, and the heat transfer prevention part is formed in the upper bearing or the lower bearing to be welded to suppress the transfer of welding heat. Provided is a compression mechanism fixed structure of the hermetic rotary compressor.

이하, 본 발명의 밀폐형 회전식 압축기의 압축기구부 고정구조를 첨부도면에 도시한 실시예에 따라 설명하면 다음과 같다.Hereinafter, the compression structure of the compression mechanism of the hermetic rotary compressor of the present invention will be described according to the embodiment shown in the accompanying drawings.

도 3, 4는 본 발명의 밀폐형 회전식 압축기 압축기구부 고정구조가 구비된 압축기구부를 중심으로 도시한 것으로, 먼저 밀폐형 회전식 압축기의 압축기구부는 소정의 내부 체적을 갖는 밀폐용기(1)내부에 장착되며 그 압축기구부는 전동기구부의 구동력을 전달받아 작동하게 된다. 상기 압축기구부는 편심부(4a)가 구비되어 상기 전동기구부에 연결되는 회전축(4)과, 가스가 흡입되고 압축되어 토출되는내부공간(P)이 구비되어 그 내부공간(P)에 상기 회전축의 편심부(4a)가 삽입되는 실린더(5)와, 상기 회전축(4)이 내삽됨과 아울러 상기 실린더(5)의 상하면에 볼트(6)의 체결에 의해 각각 결합되어 회전축(4)을 지지함과 아울러 상기 내부공간(P)을 밀폐시키는 상부 베어링(20) 및 하부 베어링(8)과, 상기 실린더(5)의 내부공간(P) 내주면에 선접촉되도록 회전축의 편심부(4a)에 삽입되어 회전축(4)의 회전에 따라 회전축(4)을 중심으로 자전 및 공전하는 롤링 피스톤(9)과, 상기 실린더(5)의 베인 슬롯(5b)에 직선운동 가능하도록 삽입되어 그 단부가 상기 롤링 피스톤(9)의 외주면과 슬라이딩 접촉되면서 실린더 내부공간(P)을 고압부(a)와 저압부(b)로 구획하는 베인(10)을 포함하여 구성된다.3 and 4 illustrate a compression mechanism having a fixed structure of the hermetic rotary compressor of the present invention. First, the compression mechanism of the hermetic rotary compressor is mounted inside the hermetic container 1 having a predetermined internal volume. The compressor mechanism is operated by receiving the driving force of the electric mechanism. The compression mechanism has an eccentric portion (4a) is provided with a rotary shaft (4) connected to the power mechanism portion, and the inner space (P) through which gas is sucked, compressed and discharged is provided in the inner space (P) of the rotary shaft The cylinder 5 into which the eccentric portion 4a is inserted and the rotation shaft 4 are interpolated, and coupled to the upper and lower surfaces of the cylinder 5 by fastening bolts 6 to support the rotation shaft 4. In addition, the rotary shaft is inserted into the eccentric portion (4a) of the rotary shaft to be in line contact with the upper bearing 20 and the lower bearing (8) for sealing the inner space (P) and the inner peripheral surface of the inner space (P) of the cylinder (5) The rolling piston 9 rotates and revolves about the rotation shaft 4 and the vane slot 5b of the cylinder 5 so as to be able to linearly move as the rotation of the shaft 4 rotates. Sliding contact with the outer peripheral surface of the 9) the cylinder inner space (P) to the high pressure portion (a) and low pressure portion (b) It is comprised including the vane 10 to partition.

상기 압축기구부는 그 압축기구부를 구성하는 상부 베어링(20)이 상기 밀폐용기(1)에 고정 결합되며 이때 상기 상부 베어링(20)의 외벽, 즉 외면이 상기 밀폐용기(1)의 내벽, 즉, 내면에 접촉된 상태에서 점용접에 의해 접합되어 고정 결합된다.The compressor sphere is an upper bearing 20 constituting the compression mechanism is fixedly coupled to the hermetic container 1, wherein an outer wall of the upper bearing 20, that is, an outer surface thereof is an inner wall of the hermetic container 1, In contact with the inner surface, it is joined by spot welding and fixedly coupled.

상기 상부 베어링(20)은, 도 5, 6에 도시한 바와 같이, 소정의 두께 및 상기 밀폐용기 내경과 상응하는 외경을 갖도록 형성되는 플랜지부(21)와 그 플랜지부의 가운데 일정 외경과 길이를 갖도록 연장 형성되는 지지부(22)와 그 지지부(22)의 가운데로 관통 형성되는 축 삽입구멍(23)과 상기 플랜지부(21)의 내측에 일정 폭과 깊이를 갖도록 음각지게 형성되는 열전달 방지부(24)와 그 열전달 방지부(24)에 토출 가스의 맥동소음을 저감시키는 소음기(30)가 장착되는 장착부(25)와 상기 열전달 방지부(24)의 저면에 가스가 토출되는 토출공(26)이 구비되어 이루어진다. 상기 플랜지부(21)는 상기 열전달 방지부(24)에 의해 그 테두리가 일정 두께의 높이를 갖는 테두리부(27)가 형성된다. 상기 장착부(25)는 상기 소음기(30)의 단부가 삽입되도록 환형 형상으로 단턱지게 형성되되 그 단턱은 환형의 홈이 형성됨에 의해 이루어진다. 상기 장착부(25)의 다른 변형예로서, 도 7에 도시한 바와 같이, 상기 열전달 방지부(24)의 저면에 일정 폭으로 함몰부(28)가 형성됨에 의해 상기 소음기(30)가 삽입되는 단턱이 형성된다.As shown in FIGS. 5 and 6, the upper bearing 20 has a predetermined outer diameter and length among the flange portion 21 and the flange portion formed to have a predetermined thickness and an outer diameter corresponding to the inner diameter of the sealed container. A heat transfer preventing part that is formed to have a predetermined width and depth in the inner side of the support portion 22 and the shaft insertion hole 23 formed to penetrate into the center of the support portion 22 and the flange portion 21 ( 24 and the mounting portion 25 to which the silencer 30 for reducing the pulsation noise of the discharge gas is mounted on the heat transfer preventing portion 24 and the discharge hole 26 through which gas is discharged to the bottom surface of the heat transfer preventing portion 24. This is provided. The flange portion 21 is formed by the heat transfer preventing portion 24 has an edge portion 27 whose edge has a predetermined thickness. The mounting portion 25 is formed to be stepped in an annular shape so that the end of the silencer 30 is inserted, the step is formed by the annular groove is formed. As another modification of the mounting portion 25, as shown in FIG. 7, a stepped portion in which the silencer 30 is inserted by the depression 28 formed at a predetermined width on the bottom surface of the heat transfer preventing portion 24 is formed. Is formed.

상기 상부 베어링(20)은 그 축 삽입구멍(23)에 상기 회전축(4)이 내삽되며 상기 열전달 방지부(24)에 상기 토출공(26)을 개폐하는 개폐수단(11)이 장착되며 그 토출공(26)은 실린더(5)의 일측에 형성되는 토출포트(5d)와 연통되고 그 장착부(25)에 소음기(30)가 삽입 고정 결합되며 그 플랜지부(21)의 외주면이 상기 밀폐용기(1)의 내주면과 접촉된 상태에서 점용접된다.The upper bearing 20 has an opening and closing means 11 for opening and closing the discharge hole 26 in the shaft insertion hole 23 is inserted into the rotary shaft 4 and the heat transfer preventing portion 24 is discharged Ball 26 is in communication with the discharge port (5d) formed on one side of the cylinder 5, the silencer 30 is inserted and fixed to the mounting portion 25, the outer peripheral surface of the flange portion 21 is the sealed container ( Spot welding is carried out in contact with the inner circumferential surface of 1).

본 발명의 다른 실시예로서 상기 압축기구부를 구성하는 하부 베어링이 상기 밀폐용기에 용접에 의해 접합되어 결합되며 그 하부 베어링의 플랜지부에 상기 열전달 방지부가 구비된다.In another embodiment of the present invention, the lower bearing constituting the compression mechanism is joined to the hermetic container by welding, and the heat transfer preventing part is provided in the flange portion of the lower bearing.

이하, 본 발명의 밀폐형 회전식 압축기 압축기구부 고정구조의 작용효과를 설명하면 다음과 같다.Hereinafter, the operation and effect of the fixed rotary compressor compression mechanism fixed structure of the present invention will be described.

상기 압축기구부가 고정 결합되는 과정은 먼저 전동기구부 및 압축기구부가 조립된 조립체가 밀폐용기(1)내에 삽입된 상태에서 밀폐용기(1)를 접지(EARTH)시키고 밀폐용기(1)에 용접봉을 접촉시킴에 의해 압축기구부를 구성하는 상부 베어링(20)을 상기 밀폐용기(1)내에 접합되도록 용접하게 된다.In the process of fixing the compression mechanism unit, first, the assembly of the electric mechanism unit and the compression mechanism unit is inserted into the airtight container 1, and the airtight container 1 is grounded and the welding rod contacts the airtight container 1. By welding, the upper bearing 20 constituting the compression mechanism part is welded to be joined to the sealed container 1.

상기 압축기구부를 구성하는 상부 베어링(20)과 밀폐용기(1)가 용접되는 과정에서용접에 의한 용접열이 발생하게 되며 그 발생되는 용접열은 상부 베어링(20)의 플랜지부(21)를 통해 전달되며 이때 열전달 방지부(24)에 의해 전달되는 열이 외부로 발산됨에 의해 회전축(4)을 지지하는 지지부(22)로 전달되는 열이 억제된다. 즉, 음각으로 파여진 열전달 방지부(24)에 의해 열전달 면적이 크게 되므로 열발산이 효과적으로 이루어진다. 이에 따라 상기 회전축(4)을 지지하는 지지부(22)로 전달되는 열이 최소화되어 회전축(4)과 지지부(22)사이의 변형을 방지하여 회전축(4)의 회전이 원활하게 된다. 그리고 상기 용접열이 상부 베어링(20)을 통해 전달 발산되므로 그 용접열이 실린더(5)로 전달되는 것을 방지하게 되어 실린더(5)의 변형을 방지하게 되므로 실린더(5)에 결합되는 부품들의 작동이 원활하게 된다.In the process of welding the upper bearing 20 constituting the compression mechanism and the hermetic container 1, welding heat is generated by welding, and the generated welding heat is generated through the flange portion 21 of the upper bearing 20. In this case, heat transmitted to the support part 22 supporting the rotating shaft 4 is suppressed by the heat transmitted by the heat transfer preventing part 24 to the outside. That is, heat dissipation is effectively performed because the heat transfer area is increased by the intaglio-heated heat transfer preventing unit 24. Accordingly, the heat transmitted to the support 22 supporting the rotary shaft 4 is minimized to prevent deformation between the rotary shaft 4 and the support 22, thereby smoothly rotating the rotary shaft 4. Since the welding heat is transmitted and diverged through the upper bearing 20, the welding heat is prevented from being transferred to the cylinder 5, thereby preventing the deformation of the cylinder 5. This will be smooth.

또한 상기 소음기(30)가 상부 베어링(20)의 장착부(25)에 끼워져 결합됨에 의해 소음기(30)로 유입된 고온 고압상태의 냉매 가스 누설을 방지하게 된다. 즉, 상기 소음기가 장착되는 단턱에 의해 측부에 홈이 형성되므로 소음기(30)가 단턱에 끼워짐과 동시에 그 소음기(30)의 끝이 홈에 삽입되므로 소음기(30)로 유입된 냉매 가스의 누설을 최소화시키게 된다.In addition, the silencer 30 is fitted to the mounting portion 25 of the upper bearing 20 to prevent leakage of the refrigerant gas in the high temperature and high pressure state introduced into the silencer 30. That is, since a groove is formed at the side by the stepped portion on which the silencer is mounted, the silencer 30 is inserted into the stepped portion and the end of the silencer 30 is inserted into the groove so that the refrigerant gas leaked into the silencer 30. Will be minimized.

이상에서 설명한 바와 같이, 본 발명에 의한 밀폐형 회전식 압축기의 압축기구부 고정구조는 냉매 가스를 압축하는 압축기구부의 장착이 그 압축기구부를 구성하는 상부 베어링을 밀폐용기에 용접함에 의해 이루어지게 되어 상기 압축기구부를 구성하는 실린더의 변형을 방지하게 됨은 물론 상부 베어링의 변형을 방지하게 됨으로써 부품의 작동을 원활하게 할 뿐만 아니라 압축되는 냉매 가스의 누설을 방지하게되어 압축 성능을 향상시킬 수 있고, 또한 소음기에서의 가스 누설을 최소화하여 소음 효과를 높일 수 있는 효과가 있다.As described above, the compression mechanism portion fixing structure of the hermetic rotary compressor according to the present invention is made by mounting the compression mechanism portion for compressing the refrigerant gas by welding the upper bearing constituting the compression mechanism portion to the hermetic container. By preventing the deformation of the cylinder constituting the as well as by preventing the deformation of the upper bearing to facilitate the operation of the components as well as to prevent the leakage of the refrigerant gas is compressed to improve the compression performance, and also in the silencer Minimizing gas leakage has the effect of increasing the noise effect.

Claims (3)

가스가 압축되는 내부공간이 구비된 실린더와 그 실린더의 상하면에 각각 결합되어 내부공간을 밀폐시키는 상부 베어링 및 하부 베어링을 포함하도록 구성되어 냉매 가스를 압축시키는 압축기구부의 상부 베어링 또는 하부 베어링의 외벽이 상기 압축기구부가 내삽되는 밀폐용기의 내벽에 용접에 의해 접합되며 그 용접되는 상부 베어링 또는 하부 베어링에 용접열의 전달을 억제하는 열전달 방지부가 형성된 것을 특징으로 하는 밀폐형 회전식 압축기의 압축기구부 고정구조.The outer wall of the upper bearing or lower bearing of the compression mechanism unit is configured to include a cylinder having an inner space in which gas is compressed and an upper bearing and a lower bearing respectively coupled to upper and lower surfaces of the cylinder to seal the inner space. The compressor sphere fixing structure of the hermetic rotary compressor, characterized in that the heat transfer prevention unit is joined to the inner wall of the hermetically sealed container in which the compressor sphere is inserted by welding and suppresses the transfer of welding heat to the welded upper bearing or the lower bearing. 제1항에 있어서, 상기 용접이 이루어지는 상부 베어링 또는 하부 베어링은 소정의 두께 및 상기 밀폐용기의 내경과 상응하는 외경을 갖도록 형성되는 플랜지부와 그 플랜지부의 가운데 일정 외경과 길이를 갖도록 연장 형성되는 지지부와 그 지지부의 가운데로 관통 형성되는 축 삽입구멍과 상기 플랜지부의 내측에 일정 폭과 깊이를 갖도록 음각지게 형성되는 열전달 방지부와 그 열전달 방지부에 토출 가스의 맥동소음을 저감시키는 소음기가 장착되는 장착부가 구비된 것을 특징으로 하는 밀폐형 회전식 압축기의 압축기구부 고정구조.The flange of claim 1, wherein the upper bearing or the lower bearing on which the welding is made extends to have a predetermined outer diameter and a length among a flange portion formed to have a predetermined thickness and an outer diameter corresponding to an inner diameter of the sealed container. A shaft insertion hole penetrating through the support portion and the support portion, and a heat transfer prevention portion formed intaglio to have a predetermined width and depth inside the flange portion, and a silencer for reducing the pulsation noise of the discharge gas in the heat transfer prevention portion Compressor part fixed structure of the hermetic rotary compressor, characterized in that the mounting portion is provided. 제2항에 있어서, 상기 장착부는 상기 소음기가 끼워질 수 있도록 환형으로 단턱지게 형성된 것을 특징으로 하는 밀폐형 회전식 압축기의 압축기구부 고정구조.3. The fixed structure of the compression mechanism of the hermetic rotary compressor according to claim 2, wherein the mounting portion is formed to be stepped in an annular shape so that the silencer can be fitted.
KR1020000061636A 2000-10-19 2000-10-19 Structure for engaging compressing unit in rotary compressor KR100365000B1 (en)

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Publication number Priority date Publication date Assignee Title
KR100449406B1 (en) * 2001-08-20 2004-09-18 가부시기가이샤 산교세이기 세이사꾸쇼 Valve driving device

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JP7078883B1 (en) * 2021-03-01 2022-06-01 ダイキン工業株式会社 Compressor and refrigeration cycle equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100449406B1 (en) * 2001-08-20 2004-09-18 가부시기가이샤 산교세이기 세이사꾸쇼 Valve driving device

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