KR20040023040A - Fastening structure of bottom cap for hermetic rotary compressor - Google Patents

Fastening structure of bottom cap for hermetic rotary compressor Download PDF

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Publication number
KR20040023040A
KR20040023040A KR1020020054656A KR20020054656A KR20040023040A KR 20040023040 A KR20040023040 A KR 20040023040A KR 1020020054656 A KR1020020054656 A KR 1020020054656A KR 20020054656 A KR20020054656 A KR 20020054656A KR 20040023040 A KR20040023040 A KR 20040023040A
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KR
South Korea
Prior art keywords
body case
main body
bottom cap
rotary compressor
cap
Prior art date
Application number
KR1020020054656A
Other languages
Korean (ko)
Inventor
고현준
이윤학
Original Assignee
엘지전자 주식회사
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Priority to KR1020020054656A priority Critical patent/KR20040023040A/en
Publication of KR20040023040A publication Critical patent/KR20040023040A/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
    • F04C18/30—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
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • 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
    • F04B39/14—Provisions for readily assembling or disassembling
    • 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
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • 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
    • F04C2240/50—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021—Systems for the equilibration of forces acting on the pump

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

Abstract

PURPOSE: A structure for coupling a bottom cap of a hermetic rotary compressor is provided to prevent deterioration of performance and abnormal noise due to heat distortion caused by welding. CONSTITUTION: A hermetic container comprises a hollow cylindrical main body case(11); an upper cap sealing an upper opening end of the main body case; and a bottom cap(13) sealing a lower opening end of the main body case, and coupled by a coupling unit. The coupling unit comprises a spiral groove(11a) formed on an inner circumferential surface of a lower opening end of the main body case; and a spiral protrusion(13a) formed on a peripheral surface of the bottom cap to be coupled to the spiral groove. The main body case and the bottom cap are placed so that vertical central lines of the main body case and the bottom cap are identical with each other. The spiral groove formed on the peripheral surface of an upper end of the bottom cap is rotated along the spiral groove formed on the inner circumferential surface of the lower opening end of the main body case.

Description

밀폐형 회전식 압축기의 하부 캡 체결 구조{FASTENING STRUCTURE OF BOTTOM CAP FOR HERMETIC ROTARY COMPRESSOR}FASTENING STRUCTURE OF BOTTOM CAP FOR HERMETIC ROTARY COMPRESSOR}

본 발명은 밀폐형 회전식 압축기에 관한 것으로서, 보다 상세하게는 밀폐용기의 원통형 본체 케이스 하부 개방단에 하부 캡을 체결하기 위한 밀폐식 회전형 압축기의 하부캡 체결 구조에 관한 것이다.The present invention relates to a hermetic rotary compressor, and more particularly, to a lower cap fastening structure of a hermetic rotary compressor for fastening a lower cap to a cylindrical body case lower open end of a hermetic container.

일반적으로, 밀페형 압축기는 유체를 압축하는 기기이다. 이와 같은 압축기는 밀폐용기내에 장착되어 구동력을 발생시키는 전동기구부와 그 전동기구부의 구동력을 전달받아 가스를 압축하는 압축기구부로 구성된다. 상기 압축기는 가스를 압축하는 방식에 따라 회전식 압축기(ROTARY COMPRESSOR), 왕복동식 압축기(RECIPROCATING COMPRESSOR), 스크롤 압축기(SCROLL COMPRESSOR) 등 여러 종류가 있다.Generally, a hermetic compressor is a device that compresses a fluid. Such a compressor is composed of an electric mechanism part which is mounted in a sealed container and generates a driving force, and a compressor mechanism that compresses gas by receiving the driving force of the electric mechanism part. The compressor may be of various types, such as a rotary compressor, a reciprocating compressor, a scroll compressor, and a scroll compressor.

제 1도는 종래의 밀폐형 회전식 압축기의 종단면도이고, 제 2도는 도 1의 A부분 확대 단면도이다.1 is a longitudinal cross-sectional view of a conventional hermetic rotary compressor, and FIG. 2 is an enlarged cross-sectional view of portion A of FIG.

도 1에서 도시한 바와 같이, 종래의 밀폐형 회전식 압축기는 전원을 인가하면 회전력을 발생시키는 전동기구부와 전동기구부로부터 회전력을 전달받아 냉매 가스를 흡입, 압축 및 토출하는 압축기구부와, 상기 압축기구부를 소정의 형상의 밀폐된 공간내에 고정하기 위한 밀폐용기(110)로 구성된다.As shown in FIG. 1, the conventional hermetic rotary compressor receives a rotational force from an electric mechanism unit that generates rotational force when the power is applied and a compression mechanism unit that sucks, compresses and discharges refrigerant gas, and the compressor mechanism unit. Consists of a sealed container 110 for fixing in the closed space of the shape of.

상기 전동기구부는 전원이 인가되면 자력을 발생하는 고정자(121)와, 그 고정자(121)의 자력에 의하여 회전하는 회전자(122)와, 그 회전자(122)의 내경에 압입되는 회전축(123)으로 구성된다.The power mechanism part includes a stator 121 that generates magnetic force when a power is applied, a rotor 122 that rotates by the magnetic force of the stator 121, and a rotation shaft 123 that is pressed into the inner diameter of the rotor 122. It is composed of

상기 압축기구부는 전동기구부의 하부에 위치하며, 냉매 가스를 흡입, 압축 및 토출하도록 구비된 실린더(131)와, 상기 실린더(131)의 상, 하부에 조립되어 상기 회전축(123)을 관통시켜 지지하는 상부베어링(134) 및 하부베어링(135)과, 상기 회전축(123)에 편심부(132)가 삽입되어 그 회전축(123)의 회전에 따라 상기 실린더(131) 내부 공간에서 공전하는 롤링 피스톤(133)과, 상기 롤링 피스톤(133)의 외주면과 선 접촉되어 실린더(131)의 내부공간 내주면과 롤링 피스톤(133)의 외주면에 의해 형성되는 공간부를 흡입영역과 압축영역으로 분리시키는 베인(미도시)으로 구성된다.The compressor mechanism is located in the lower portion of the transmission mechanism, the cylinder 131 is provided to suck, compress and discharge the refrigerant gas, and the upper and lower parts of the cylinder 131 is assembled to support the rotating shaft 123 through The upper bearing 134 and the lower bearing 135 and the eccentric portion 132 is inserted into the rotating shaft 123 and the rolling piston revolving in the inner space of the cylinder 131 according to the rotation of the rotating shaft 123 ( 133 and a vane (not shown) for linearly contacting the outer circumferential surface of the rolling piston 133 to separate the space formed by the inner circumferential surface of the inner space of the cylinder 131 and the outer circumferential surface of the rolling piston 133 into a suction zone and a compression zone. It is composed of

상기 밀폐용기(110)는 일정한 두께를 갖는 중공형 원통의 본체 케이스(111)와, 그 상측 개방단을 밀봉하는 상부 캡(112)과, 상기 본체 케이스(111)의 하측 개방단을 밀봉하는 하부 캡(113)으로 구성된다.The airtight container 110 has a hollow cylindrical body case 111 having a constant thickness, an upper cap 112 for sealing an upper open end thereof, and a lower opening for sealing a lower open end of the main body case 111. The cap 113 is comprised.

상기 하부 캡(113)은 일정 부분이 본체 케이스(111)의 하부 개방단에 삽입시켜 고정하고, 하부 캡(113)의 원주면상에 본체 케이스(111)의 하부 개방단이 겹쳐진 상태로 용점 비드면(150)이 형성되도록 겹치기 용접하여 체결시킨다.The lower cap 113 is fixed by inserting a predetermined portion into the lower open end of the main body case 111, and the melting point bead surface in a state in which the lower open end of the main body case 111 overlaps the circumferential surface of the lower cap 113. 150 is formed by overlap welding to be fastened.

도면중 미설명 부호 140은 흡입구, 141은 토출포트, 142는 토출관, 143은 리테이너, 144는 소음기, 145는 토출관이다.In the drawings, reference numeral 140 denotes an inlet, 141 a discharge port, 142 a discharge tube, 143 a retainer, 144 a silencer, and 145 a discharge tube.

이와 같은 구성에 의하여, 본체 케이스(111) 하부 개방단을 밀폐시키도록 하부 캡(113)을 용접하여 체결하는 경우, 고온의 열에 의한 본체 케이스(111)와 하부 캡 부재의 열 응력에 의한 열 변형이 발생하게 되어, 상기 본체 케이스(111) 내부의 장착되는 전동기구부와 압축기구부의 운전 시 성능 저하 및 이상 소음을 발생시킬 수 있다By such a configuration, in the case where the lower cap 113 is welded and fastened to seal the lower open end of the main body case 111, thermal deformation due to thermal stress of the main body case 111 and the lower cap member due to high temperature heat is achieved. This may occur, and may cause performance degradation and abnormal noise during operation of the electric mechanism part and the compression mechanism part mounted inside the main body case 111.

또한, 본체 케이스(111)와 하부 캡(113) 용접 비드면(116) 사이의 사이뜸이 발생되면, 이로 인하여 두 부품간의 진동과 함께 금속 마찰음이 발생하는 문제점이 있었다.In addition, when the moxibustion between the main body case 111 and the lower cap 113 welding bead surface 116 is generated, there is a problem that a metal friction sound occurs with vibration between the two parts.

본체 케이스(111) 저부 개방면에 하부 캡(113)을 용접결합하기 위한 반전이 많아 생산성을 저해시킴과 아울러 생산라인이 길어지고, 이로 인한 공간확보와 용접 결합의 품질 저하로 인한 완성품의 재 작업 및 공기와 비용이 증가한다는 문제점이 있었다.The reversal for welding the lower cap 113 to the bottom open surface of the main body case 111 has a large number, which hinders productivity and lengthens the production line, thereby reworking the finished product due to securing space and degrading the quality of the welding joint. And air and cost increase.

상기한 바와 같은 문제점을 해결하기 위하여 안출된 본 발명은 밀페형 회전식 압축기의 본체 케이스 하부 개방단을 밀폐시키기 위하여 하부 캡을 체결시 용접에 의해 발생되는 열 변형에 따른 성능 저하 및 이상소음, 제품의 생산성 향상 및 신뢰성 확보를 위한 밀폐형 회전식 압축기의 하부 캡 체결구조의 제공을 그 목적으로 한다.The present invention devised to solve the problems as described above is to reduce the performance and abnormal noise caused by heat deformation caused by welding when the lower cap is tightened to seal the lower open end of the main body case of the hermetic rotary compressor It is an object of the present invention to provide a lower cap fastening structure of a hermetic rotary compressor to improve productivity and secure reliability.

제 1도는 종래의 밀폐형 회전식 압축기의 종단면도이고,1 is a longitudinal sectional view of a conventional hermetic rotary compressor,

제 2도는 도 1의 A부분 확대 단면도,2 is an enlarged cross-sectional view of portion A of FIG.

제 3도는 본 발명의 밀폐형 회전식 압축기의 종단면도,3 is a longitudinal sectional view of the hermetic rotary compressor of the present invention,

제 4도는 도 3의 B부분 확대 단면도.4 is an enlarged cross-sectional view of portion B of FIG.

*도면의 주요부분에 대한 설명** Description of the main parts of the drawings *

10: 밀폐용기11: 본체 케이스10: airtight container 11: body case

11a: 나선 홈12: 상부 캡11a: spiral groove 12: upper cap

13: 하부 캡13a: 나선 돌기13: lower cap 13a: spiral projection

상기한 목적을 달성하기 위하여 본 발명에 따라, 밀폐용기의 중공 원통형 본체 케이스와, 그 본체 케이스 하부 개방단을 밀봉하기 위해 하부 캡이 체결수단에 의하여 체결 고정되는 밀폐형 회전식 압축기의 밀폐형 회전식 압축기의 하부 캡 체결 구조에 있어서, 상기 체결수단은 상기 본체 케이스 하부 개방단 측 내주면에 형성된 나선 홈과, 상기 나선 홈에 나선 결합되도록 하부 캡의 외주면에 형성된 나선 돌기로 이루어짐을 특징으로 하는 밀폐형 회전식 압축기의 하부 캡 체결 구조에 의해 달성된다.In order to achieve the above object, according to the present invention, the lower portion of the hermetic rotary compressor of the hermetic rotary compressor, in which the lower cap is fastened and fixed by the fastening means to seal the hollow cylindrical body case of the hermetic container and the lower open end thereof. In the cap fastening structure, the fastening means is a lower portion of the hermetic rotary compressor, characterized in that the spiral groove formed on the inner peripheral surface of the lower end of the main body case and the spiral protrusion formed on the outer peripheral surface of the lower cap to be coupled to the spiral groove. Achieved by a cap fastening structure.

이하, 본 발명의 밀폐형 스크롤 압축기를 도시한 도면에 따라 그 구성 및 작동을 상세히 설명하면 다음과 같다.Hereinafter, the configuration and operation of the hermetic scroll compressor of the present invention will be described in detail.

제 3도는 본 발명의 밀폐형 회전식 압축기의 종단면도이고, 제 4도는 도 3의 B부분 확대 단면도이다.3 is a longitudinal cross-sectional view of the hermetic rotary compressor of the present invention, and FIG. 4 is an enlarged cross-sectional view of portion B of FIG.

본 발명의 밀폐형 회전식 압축기는, 도 3에서 도시한 바와 같이, 전원이 인가되면 자력을 발생하는 고정자(21)와, 그 고정자(21)의 자력에 의하여 회전하는 회전자(22)와, 그 회전자(22)의 내경에 압입되는 회전축(23)으로 이루어진 전동기구부와; 상기 전동기구부의 하부에 위치하며, 냉매 가스를 흡입, 압축 및 토출하도록 구비된 실린더(31)와, 상기 실린더(31)의 상, 하부에 조립되어 상기 회전축(23)을 관통시켜 지지하는 상부베어링(34) 및 하부베어링(35)과, 상기 회전축(23)에 편심부(32)가 삽입되어 그 회전축(23)의 회전에 따라 상기 실린더(31) 내부 공간에서 공전하는 롤링 피스톤(33)과, 상기 롤링 피스톤(33)의 외주면과 선 접촉되어 실린더(31)의 내부공간 내주면과 롤링 피스톤(33)의 외주면에 의해 형성되는 공간부를 흡입영역과 압축영역으로 분리시키는 베인(미도시)으로 구성되는 압축기구부와; 상기 압축기구부를 소정의 형상의 밀폐된 공간 내에 고정하기 위한 밀폐용기(10)로 구성된다.As shown in FIG. 3, the hermetic rotary compressor of the present invention includes a stator 21 that generates magnetic force when a power is applied, a rotor 22 that rotates by the magnetic force of the stator 21, and the rotation thereof. An electric mechanism part including a rotating shaft 23 press-fitted into the inner diameter of the electron 22; Located in the lower portion of the power mechanism portion, the cylinder 31 is provided to suck, compress and discharge the refrigerant gas, and the upper bearing is assembled to the upper and lower portions of the cylinder 31 to support the rotating shaft 23 through (34) and the lower bearing (35), the eccentric portion (32) is inserted into the rotary shaft (23) and the rolling piston (33) revolving in the inner space of the cylinder (31) in accordance with the rotation of the rotary shaft (23); And a vane (not shown) which is in contact with the outer circumferential surface of the rolling piston 33 and separates the space formed by the inner circumferential surface of the cylinder 31 and the outer circumferential surface of the rolling piston 33 into a suction zone and a compression zone. Compressor section being; It is composed of a sealed container 10 for fixing the compression mechanism in a sealed space of a predetermined shape.

도면중 미설명 부호 40은 흡입구, 41은 토출포트, 42는 토출관, 43은 리테이너, 44는 소음기, 45는 토출관이다.In the drawings, reference numeral 40 denotes a suction port, 41 a discharge port, 42 a discharge tube, 43 a retainer, 44 a silencer, and 45 a discharge tube.

또한, 상기 밀폐용기(10)는 일정한 두께를 갖는 중공 원통형의 본체 케이스(11)와, 그 본체 케이스 상측 개방단을 밀봉하는 상부 캡(12)과, 상기 본체 케이스(11)의 하측 개방단을 밀봉하기 위한 하부 캡(13)으로 체결수단에 의하여 체결된다.In addition, the airtight container 10 includes a hollow cylindrical body case 11 having a constant thickness, an upper cap 12 sealing the upper end of the main body case, and a lower open end of the main body case 11. It is fastened by the fastening means to the lower cap 13 for sealing.

상기 체결수단은, 도 4에서 도시한 바와 같이, 상기 본체 케이스(11) 하부 개방단 측 내주면에 형성된 나선 홈(11a)과, 상기 나선 (11a)홈에 나선 결합되도록하부 캡(13)의 외주면에 형성된 나선 돌기(13a)로 이루어진다.The fastening means, as shown in Figure 4, the outer circumferential surface of the lower cap 13 so as to be coupled to the spiral groove 11a formed on the inner peripheral surface of the lower open end side of the main body case 11, the spiral 11a It is made of a spiral projection (13a) formed in.

이와 같은 구성에 의하여, 상기 본체 케이스(11) 하부 개방단에 밀폐시키도록 하부 캡(13)을 체결하기 위해서는, 상기 본체 케이스(11)의 수직 중심선이 하부 캡의 수직 중심선과 일치하도록 위치시킨 후 하부 켑(13)의 상측단 외주면에 형성된 나선 돌기(13a)가 상기 본체 케이스(11)의 하부 개방단 내주면을 따라 형성된 나선 홈(11a)을 회전하며 나선 결합되도록 하여 체결 고정되도록 한다.By such a configuration, in order to fasten the lower cap 13 to seal the lower end of the main body case 11, the vertical center line of the main body case 11 is positioned to coincide with the vertical center line of the lower cap. The spiral protrusion 13a formed on the outer circumferential surface of the upper end of the lower fin 13 rotates the spiral groove 11a formed along the inner circumferential surface of the lower open end of the body case 11 so as to be coupled and spirally coupled to the spiral groove 11a.

이상 설명한 바와 같이, 본 발명에 따르면, 하부 캡을 본체 케이스 하부 개방단에 나선 결합시킴으로서 조립공정에 드는 소요시간을 단축하여 생산성을 향상시킬 수 있으며, 종래의 용접 결합에 의한 부품의 열변형이 발생하여 운전 시 성능 저하 및 이상 소음이 발생하는 것을 방지하여 제품의 신뢰성을 확보 할 수 있는 효과를 갖는다.As described above, according to the present invention, by screwing the lower cap to the lower open end of the main body case, it is possible to shorten the time required for the assembly process to improve the productivity, and thermal deformation of the component by the conventional welding coupling occurs It prevents the performance deterioration and abnormal noise during operation, thereby securing the reliability of the product.

Claims (1)

밀폐용기의 중공 원통형 본체 케이스와, 그 본체 케이스 하부 개방단을 밀봉하기 위해 하부 캡이 체결수단에 의하여 체결 고정되는 밀폐형 회전식 압축기의 밀폐형 회전식 압축기의 하부 캡 체결 구조에 있어서,In the hollow cylindrical body case of the hermetic container and the lower cap fastening structure of the hermetic rotary compressor of the hermetic rotary compressor in which the lower cap is fastened and fixed by the fastening means to seal the lower end of the main body case. 상기 체결수단은 상기 본체 케이스 하부 개방단 측 내주면에 형성된 나선 홈과, 상기 나선 홈에 나선 결합되도록 하부 캡의 외주면에 형성된 나선 돌기로 이루어짐을 특징으로 하는 밀폐형 회전식 압축기의 하부 캡 체결 구조The fastening means is a lower cap fastening structure of the hermetic rotary compressor, characterized in that the spiral groove formed on the inner peripheral surface of the lower end of the main body case and the spiral protrusion formed on the outer peripheral surface of the lower cap to be coupled to the spiral groove.
KR1020020054656A 2002-09-10 2002-09-10 Fastening structure of bottom cap for hermetic rotary compressor KR20040023040A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109113969A (en) * 2017-06-23 2019-01-01 上海海立电器有限公司 A kind of upper cylinder half cover manufacturing method of compressor and compressor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS615372U (en) * 1984-06-18 1986-01-13 松下冷機株式会社 compressor airtight container
JPH02131089U (en) * 1989-03-31 1990-10-30
JPH03290063A (en) * 1990-02-26 1991-12-19 Canyon Corp Dispenser for viscous fluid, assembly thereof and filling with viscous fluid
JPH07119637A (en) * 1993-10-28 1995-05-09 Hitachi Ltd Method for welding container of closed type compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS615372U (en) * 1984-06-18 1986-01-13 松下冷機株式会社 compressor airtight container
JPH02131089U (en) * 1989-03-31 1990-10-30
JPH03290063A (en) * 1990-02-26 1991-12-19 Canyon Corp Dispenser for viscous fluid, assembly thereof and filling with viscous fluid
JPH07119637A (en) * 1993-10-28 1995-05-09 Hitachi Ltd Method for welding container of closed type compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109113969A (en) * 2017-06-23 2019-01-01 上海海立电器有限公司 A kind of upper cylinder half cover manufacturing method of compressor and compressor

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