KR20000032090A - Structure for compressing refrigerant gas of closed-type rotary compressor - Google Patents

Structure for compressing refrigerant gas of closed-type rotary compressor Download PDF

Info

Publication number
KR20000032090A
KR20000032090A KR1019980048431A KR19980048431A KR20000032090A KR 20000032090 A KR20000032090 A KR 20000032090A KR 1019980048431 A KR1019980048431 A KR 1019980048431A KR 19980048431 A KR19980048431 A KR 19980048431A KR 20000032090 A KR20000032090 A KR 20000032090A
Authority
KR
South Korea
Prior art keywords
refrigerant gas
cylinder
eccentric
rolling
rotary compressor
Prior art date
Application number
KR1019980048431A
Other languages
Korean (ko)
Inventor
김종목
Original Assignee
구자홍
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019980048431A priority Critical patent/KR20000032090A/en
Publication of KR20000032090A publication Critical patent/KR20000032090A/en

Links

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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • 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
    • 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
    • F04C2240/70—Use of multiplicity of similar components; Modular construction

Abstract

PURPOSE: A structure for compressing refrigerant gas of a closed-type rotary compressor is provided to easily process and assemble components as well as to reduce the friction loss caused in a process of compressing the refrigerant gas. CONSTITUTION: A closed-type rotary compressor compresses refrigerant gas by the steps of; transferring the rotary force of an electric unit to a rolling-integrated rotary axis(20); revolving a contact part(23) on the inner circumference of a cylinder compression space through the eccentric rotation of an eccentric part(22) as the rotary axis revolves; and absorbing and compressing refrigerant gas by changing the volume of the compression space. The compression performance is improved by preventing the friction loss as the rotary axis revolves.

Description

밀폐형 회전식 압축기의 냉매가스 압축구조Refrigerant gas compression structure of hermetic rotary compressor

본 발명은 밀폐형 회전식 압축기의 냉매가스 압축구조에 관한 것으로, 특히 전동기구부의 구동력을 전달받아 회전축이 회전하면서 냉매 가스를 압축하는 과정에서 발생되는 미끄럼 및 마찰 손실을 방지하고, 부품의 가공과 조립을 수월하게 할 수 있도록 한 밀폐형 회전식 압축기의 냉매가스 압축구조에 관한 것이다.The present invention relates to a refrigerant gas compression structure of a hermetic rotary compressor. In particular, the present invention relates to a refrigerant gas compression structure of a hermetic rotary compressor. It is related with the refrigerant gas compression structure of a hermetic rotary compressor.

일반적으로 밀폐형 회전식 압축기는, 도 1a, 1b에 도시한 바와 같이, 소정의 내부체적을 갖는 밀폐용기(1)가 있고, 그 밀폐용기(1)의 내부에는 고정자(2)와 회전자(3) 등으로 구성되는 전동기구부가 설치되어 있으며, 상기 회전자(3)의 내경에 압입되며 하부에 편심부(4a)가 형성된 회전축(4)과 상기 회전축의 편심부(4a)가 삽입되는 원통형의 압축 공간을 구비하여 형성되어 상기 편심부(4a)를 감싸며 상기 회전축(4)에 삽입되는 상부베어링(5) 및 하부베어링(6)과 함께 볼트(7)에 의해 결합되는 실린더(8)와 상기 회전축(4)의 편심부(4a)에 삽입됨과 더불어 실린더(8) 압축 공간(P)의 내주면을 접하면서 자전 및 공전하는 롤링피스톤(9)과 상기 실린더(8)의 일측에 직선운동가능하게 삽입되어 상기 롤링피스톤(9)의 외주면과 슬라이딩 접촉되면서 실린더(8) 압축 공간을 흡입실(a)과 압축실(b)로 분리하는 베인(10)을 포함하여 구성되는 압축기구부가 설치되어 있다.In general, a hermetic rotary compressor includes a hermetically sealed container 1 having a predetermined internal volume as shown in FIGS. 1A and 1B, and a stator 2 and a rotor 3 are formed inside the hermetically sealed container 1. And a transmission mechanism composed of a back and the like, which is pressurized into the inner diameter of the rotor 3 and has a cylindrical compression in which a rotary shaft 4 having an eccentric portion 4a formed therein and an eccentric portion 4a of the rotary shaft inserted therein. The rotating shaft and the cylinder 8 and the rotating shaft which is formed with a space and is coupled by a bolt (7) together with the upper and lower bearings 5 and 6 inserted into the rotary shaft 4 and enclosed the eccentric portion (4a) The rolling piston 9 which is inserted into the eccentric portion 4a of (4) and rotates and revolves while contacting the inner circumferential surface of the compression space P of the cylinder 8 and is inserted into one side of the cylinder 8 in a linear motion. And sliding contact with the outer circumferential surface of the rolling piston (9) to absorb the compression space of the cylinder (8) Thread may add the compression mechanism is provided which comprises a (a) and the vanes (10) for separating a compression chamber (b).

그리고 상기 베인(10)에 의해 압축실을 이루는 실린더(8)의 일측에 압축된 냉매가스를 토출시키는 토출포트(8a)가 형성되고, 상기 상부베어링(5)의 일측에 상기 토출포트(8a)와 연통되게 토출공(5a)이 형성되어 있다.A discharge port 8a for discharging the compressed refrigerant gas is formed at one side of the cylinder 8 constituting the compression chamber by the vane 10, and the discharge port 8a is provided at one side of the upper bearing 5. The discharge hole 5a is formed in communication with.

상기 실린더(8)의 흡입실에는 냉매가스가 실린더(8)내부로 유입되는 흡입구(8b)가 형성되고, 상기 흡입구(8b)는 밀폐용기(1)의 측부에 설치되는 어큐뮬레이터(11) 및 냉매유입관(12)에 의해 연결되어 있다.An intake port 8b through which the refrigerant gas flows into the cylinder 8 is formed in the suction chamber of the cylinder 8, and the intake port 8b is an accumulator 11 and a refrigerant installed at the side of the sealed container 1. It is connected by the inlet pipe 12.

상기 토출포트(8a)의 측부에 위치하도록 실린더(8)의 일측에 소정의 폭을 갖도록 형성된 베인 슬롯(Vane slot)에 소정의 두께와 면적을 갖는 베인(10)이 삽입되고, 상기 베인(10)은 스프링(13)에 의해 탄성적으로 지지되어 베인(10)의 일측단부가 롤링피스톤(9)에 접촉된다.A vane 10 having a predetermined thickness and area is inserted into a vane slot formed to have a predetermined width at one side of the cylinder 8 so as to be located at the side of the discharge port 8a, and the vane 10 ) Is elastically supported by the spring 13 so that one side end of the vane 10 contacts the rolling piston 9.

상기 밀폐용기(1)의 저면에는 슬라이딩이 일어나는 부품에 공급되는 오일이 채워져 있고, 상기 밀폐용기(1)의 상부에는 밀폐용기(1) 내부에서 압축된 냉매가스가 외부로 토출되는 토출관(14)이 설치되어 있다.The bottom surface of the sealed container (1) is filled with oil supplied to the sliding element, the upper portion of the sealed container (1) discharge pipe 14 for discharging the refrigerant gas compressed in the closed container (1) to the outside ) Is installed.

미설명 부호 15는 상부베어링의 상면에 결합되어 토출공을 개폐시키는 토출밸브이며, 미설명 부호 16은 토출밸브의 움직임을 한정,지지하는 리테이너이고, 미설명 부호 17은 소음기이며, 상기 소음기는 상부베어링이나 하부베어링에 결합되어 토출소음을 저감시키게 된다.Reference numeral 15 is a discharge valve coupled to the upper surface of the upper bearing to open and close the discharge hole, reference numeral 16 is a retainer for limiting and supporting the movement of the discharge valve, reference numeral 17 is a silencer, and the silencer is It is coupled to the bearing or the lower bearing to reduce the discharge noise.

상기한 바와 같은 압축기는 인가되는 전류에 의해 회전자(3)가 회전하면서 회전축(4)을 회전시키게 되면, 회전축(4)의 회전에 의해 회전축의 편심부(4a)에 결합되어 있는 롤링피스톤(9)이 베인(10)과 접촉된 상태에서 실린더(8) 압축 공간에서 편심 회전하게 되고, 상기 롤링피스톤(9)의 편심 회전에 의한 실린더의 압축 공간 체적변화로 저온저압의 냉매가스가 냉매유입관(12)과 흡입구(8b)를 통해 실린더(8)내부로 흡입되어 고온고압의 상태로 압축되며 그 압축된 고온고압의 냉매가스는 토출포트(8a) 및 토출공(5a)을 통해 실린더(8) 외부로 토출되며, 이는 밀폐용기(1)의 상부에 설치된 토출관(14)을 통해 밀폐용기(1)외부로 토출된다.As described above, when the rotor 3 rotates while the rotor 3 rotates by an applied current, the compressor is connected to the eccentric portion 4a of the rotation shaft by the rotation of the rotation shaft 4 ( 9) is eccentrically rotated in the compression space of the cylinder (8) in contact with the vane 10, the refrigerant gas of low temperature and low pressure flows into the refrigerant by changing the volume of the compression space of the cylinder by the eccentric rotation of the rolling piston (9) It is sucked into the cylinder 8 through the pipe 12 and the suction port 8b and compressed to a state of high temperature and high pressure. The compressed high-temperature high pressure refrigerant gas is discharged through the discharge port 8a and the discharge hole 5a. 8) It is discharged to the outside, which is discharged to the outside of the sealed container 1 through the discharge tube 14 installed on the top of the sealed container (1).

상기 냉매가스의 압축이 일어나는 압축기구부를 구성하는 실린더(8)는 내부에 원통형의 압축공간이 형성되고, 상기 압축공간에 위치하게 되는 회전축의 편심부(4a)는 일정 높이와 직경을 갖는 원형으로 축의 중심과 편심되도록 형성되며, 상기 롤링피스톤(9)은 일정 두께와 높이를 갖는 링 형태로 형성되어 상기 실린더(8)의 압축공간 내주면에 선접촉되도록 편심부(4a)에 삽입되어 결합됨과 아울러 실린더(8)의 일측에 결합된 베인(10)과 선접촉되어 압축공간을 고압부(a)와 저압부(b)로 구획하게 된다.The cylinder 8 constituting the compression mechanism for the compression of the refrigerant gas is formed in a cylindrical compression space therein, the eccentric portion (4a) of the rotating shaft to be located in the compression space is a circular having a predetermined height and diameter It is formed to be eccentric with the center of the shaft, the rolling piston 9 is formed in a ring shape having a predetermined thickness and height is inserted into the eccentric portion (4a) to be in line contact with the inner peripheral surface of the compression space of the cylinder (8) Line contact with the vane 10 coupled to one side of the cylinder 8 partitions the compression space into a high pressure portion (a) and a low pressure portion (b).

한편, 상기 회전축의 편심부(4a)에 삽입되어 편심부(4a)의 편심 회전에 의해 실린더(8)의 압축공간 내주면 및 베인(10)과 선접촉하면서 함께 회전하여 압축공간을 체적 변화시키는 롤링피스톤(9)은 압축 누설을 최소화하므로 인하여 압축성능을 높이기 위해서 정확한 치수관리가 이루어지게 될 뿐만 아니라 편심부(4a)도 정확한 치수관리가 이루어지게 되며, 또한 조립시 편심부(4a)와 롤링피스톤(9)의 정확한 센터링이 요구된다.On the other hand, rolling is inserted into the eccentric portion 4a of the rotary shaft and rotates while linearly contacting the inner space and the vane 10 of the compression space of the cylinder 8 by the eccentric rotation of the eccentric portion 4a to change the volume of the compression space. Since the piston 9 minimizes compression leakage, accurate dimensional management is performed to increase the compression performance, and the eccentric portion 4a is also precisely dimensionally managed, and the eccentric portion 4a and the rolling piston are assembled during assembly. Accurate centering of (9) is required.

그러나 상기한 바와 같은 종래의 냉매 가스 압축구조는 회전축(4)의 회전력이 편심부(4a)를 통해 롤링피스톤(9)에 전달됨에 있어 롤링피스톤(9)과 편심부(4a)사이의 접촉 마찰이 발생하게 되어 압력 상승의 요인이 될 뿐만 아니라 초기 구동시 회전축에 전달된 힘이 바로 롤링피스톤(9)에 전달되지 못하고 롤링피스톤(9)이 순간적으로 회전축(4)의 회전 반대방향으로 미끌림이 발생하여 초기 기동을 저해하는 문제점이 있었다.However, in the conventional refrigerant gas compression structure as described above, the contact friction between the rolling piston 9 and the eccentric portion 4a in that the rotational force of the rotating shaft 4 is transmitted to the rolling piston 9 through the eccentric portion 4a. Not only does this cause a pressure rise, but also the force transmitted to the rotating shaft during initial driving is not immediately transmitted to the rolling piston 9, and the rolling piston 9 is instantaneously slipped in the direction opposite to the rotation of the rotating shaft 4. There was a problem that occurred to inhibit the initial startup.

또한, 실린더 압축공간에 삽입되어 회전하게 되는 롤링피스톤(9)의 가공 치수관리가 정확하게 이루어져야 될 뿐만 아니라 조립시 정확한 센터링 작업이 이루어져야 되므로 롤링피스톤(9)의 가공이 난해하고 그 조립작업이 힘든 단점이 있었다.In addition, the processing of the rolling piston 9, which is inserted into the cylinder compression space and rotates, must be precisely performed, as well as accurate centering work must be made during assembly, so that the processing of the rolling piston 9 is difficult and the assembly work is difficult. There was this.

상기한 바와 같은 문제점을 감안하여 안출한 본 발명의 목적은 전동기구부의 구동력을 전달받아 회전축이 회전하면서 냉매 가스를 압축하는 과정에서 발생되는 미끄럼 및 마찰 손실을 감소시키고, 부품의 가공과 조립을 수월하게 할 수 있도록 한 밀폐형 회전식 압축기의 냉매가스 압축구조를 제공함에 있다.The object of the present invention devised in view of the above problems is to reduce the slip and friction loss generated in the process of compressing the refrigerant gas while the rotating shaft is rotated by receiving the driving force of the electric mechanism, and facilitates the processing and assembly of parts It is to provide a refrigerant gas compression structure of the hermetic rotary compressor.

도 1a는 일반적인 밀폐형 회전식 압축기의 일예를 도시한 정단면도,Figure 1a is a front sectional view showing an example of a general hermetic rotary compressor,

도 1b는 상기 밀폐형 회전식 압축기의 평단면도,1b is a plan sectional view of the hermetic rotary compressor;

도 2a는 본 발명의 밀폐형 회전식 압축기 냉매가스 압축구조를 도시한 정단면도,Figure 2a is a front sectional view showing a sealed rotary compressor refrigerant gas compression structure of the present invention,

도 2b는 도 2a의 평면도,2b is a plan view of FIG. 2a,

도 3는 본 발명의 밀폐형 회전식 압축기 냉매가스 압축구조의 변형예를 도시한 정단면도.Figure 3 is a front sectional view showing a modification of the hermetic rotary compressor refrigerant gas compression structure of the present invention.

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

8 ; 실린더 10 ; 베인8 ; Cylinder 10; Bain

13 ; 스프링 20 ; 롤링일체형 회전축13; Spring 20; Rolling integrated shaft

21 ; 축부 22 ; 편심부21; Shaft part 22; Eccentric

23 ; 접촉부 P ; 실린더 압축공간23; Contact P; Cylinder compression space

상기한 바와 같은 본 발명의 목적을 달성하기 위하여 내부에 압축공간이 형성된 실린더와, 일정 직경과 길이로 형성되어 전동기구부와 결합되는 축부의 일측에 축부의 중심과 편심되도록 일정 두께를 갖는 원형으로 편심부가 형성되고 상기 편심부의 동심원상으로 일정 두께 연장되어 그 외주면이 실린더 압축공간 내주면에 선접촉되는 접촉부가 형성되어 이루어진 롤링일체형 회전축과, 상기 실린더의 일측에 스프링에 의해 지지되도록 삽입되어 그 단부가 상기 접촉부에 선접촉되어 실린더 압축공간을 고압부와 저압부로 나누는 베인을 포함하여 구성함을 특징으로 하는 밀폐형 회전식 압축기의 냉매 가스 압축구조가 제공된다.In order to achieve the object of the present invention as described above, a cylinder having a compression space therein, and a circular diameter having a certain thickness so as to be eccentric with the center of the shaft portion on one side of the shaft portion formed with a predetermined diameter and length and coupled with the electric mechanism portion. And a rolling integral rotary shaft formed of a contact portion in which a contact portion is formed and extends a predetermined thickness over the concentric circle and whose outer peripheral surface is in linear contact with the inner peripheral surface of the cylinder compression space, and is inserted to be supported by a spring on one side of the cylinder, and an end thereof is Provided is a refrigerant gas compression structure of a hermetic rotary compressor comprising a vane which is in line contact with a contact portion and divides a cylinder compression space into a high pressure portion and a low pressure portion.

상기 롤링일체형 회전축의 편심부와 접촉부의 상하면은 접촉부의 높이가 높도록 단차지게 형성됨을 특징으로 하는 밀폐형 회전식 압축기의 냉매 가스 압축구조가 제공된다.The eccentric portion of the rolling integrated shaft and the upper and lower surfaces of the contact portion are provided with a refrigerant gas compression structure of the hermetic rotary compressor, characterized in that the height of the contact portion is formed stepped.

상기 롤링일체형 회전축의 편심부와 접촉부의 상하면은 접촉부의 가장자리가 높도록 경사지게 형성됨을 특징으로 하는 밀폐형 회전식 압축기의 냉매 가스 압축구조가 제공된다.The eccentric portion of the rolling integrated rotary shaft and the upper and lower surfaces of the contact portion are provided with a refrigerant gas compression structure of the hermetic rotary compressor, wherein the edge of the contact portion is formed to be inclined.

이하, 본 발명의 밀폐형 회전식 압축기의 냉매 가스 압축구조를 첨부도면에 도시한 실시예에 따라 설명하면 다음과 같다.Hereinafter, the refrigerant gas compression structure of the hermetic rotary compressor according to the embodiment shown in the accompanying drawings will be described.

본 발명의 밀폐형 회전식 압축기의 냉매 가스 압축구조는, 도 2a, 2b에 도시한 바와 같이, 내부에 압축공간(P)이 형성된 실린더(8)와, 일정 직경과 길이로 형성되어 전동기구부와 결합되는 축부(21)의 일측에 축부(21)의 중심과 편심되도록 일정 두께를 갖는 원형으로 편심부(22)가 형성되고 상기 편심부(22)의 동심원상으로 일정 두께 연장되어 그 외주면이 실린더 압축공간(P) 내주면에 선접촉되는 접촉부(23)가 형성되어 이루어진 롤링일체형 회전축(20)과, 상기 실린더(8)의 일측에 스프링(13)에 의해 지지되도록 삽입되어 그 단부가 상기 접촉부(23)에 선접촉되어 실린더 압축공간(P)을 고압부와 저압부로 나누는 베인(10)을 포함하여 구성된다.Refrigerant gas compression structure of the hermetic rotary compressor of the present invention, as shown in Figures 2a, 2b, is formed with a cylinder (8) having a compression space (P) formed therein, a predetermined diameter and length are coupled to the electric mechanism part An eccentric portion 22 is formed in a circular shape having a predetermined thickness so as to be eccentric with the center of the shaft portion 21 on one side of the shaft portion 21 and extends a predetermined thickness in a concentric circle of the eccentric portion 22 so that its outer peripheral surface is a cylinder compression space. (P) The rolling integral rotary shaft 20 formed with a contact portion 23 in line contact with the inner circumferential surface thereof is inserted to be supported by a spring 13 on one side of the cylinder 8, and an end thereof is connected to the contact portion 23. It is configured to include a vane (10) which is in line contact with and divides the cylinder compression space (P) into a high pressure portion and a low pressure portion.

상기 실린더(8)는 종래와 유사한 구조로 이루어지며, 상기 롤링일체형 회전축(20)은 그 편심부(22) 및 접촉부(23)가 실린더(8)의 압축공간(P)내부에 위치하도록 축부(21)가 전동기구부에 고정 결합되며, 상기 편심부(21) 및 접촉부(23)가 삽입된 실린더(8)의 상하면에 상부베어링(5)과 하부베어링(6)이 각각 결합된다. 그리고 상기 실린더(8)의 압축공간(P)의 일측 내주면 단부에는 토출포트(8a)가 형성되며 상기 토출포트(8a)는 상부베어링(5)의 토출공(5a)과 연통된다.The cylinder 8 has a structure similar to that of the related art, and the rolling unitary rotating shaft 20 has an axial part such that the eccentric part 22 and the contact part 23 are located in the compression space P of the cylinder 8. 21 is fixedly coupled to the transmission mechanism, and the upper and lower bearings 5 and 6 are respectively coupled to the upper and lower surfaces of the cylinder 8 into which the eccentric portion 21 and the contact portion 23 are inserted. A discharge port 8a is formed at one end of the inner peripheral surface of the compression space P of the cylinder 8, and the discharge port 8a communicates with the discharge hole 5a of the upper bearing 5.

상기 롤링일체형 회전축(20)의 편심부(22)와 접촉부(23)의 상하면은 접촉부(23)의 높이가 높도록 단차지게 형성된다. 상기 접촉부(23)의 테두리가 일정 폭과 높이를 갖도록 단차지도록 형성됨으로써 실린더(8)의 상하면에 결합되는 상,하부 베어링(5)(6)과 회전시 접촉면적을 감소시키게 된다.The upper and lower surfaces of the eccentric portion 22 and the contact portion 23 of the rolling integrated rotary shaft 20 are formed stepped so that the height of the contact portion 23 is high. The edge of the contact portion 23 is formed to be stepped to have a predetermined width and height, thereby reducing the contact area during rotation with the upper and lower bearings 5 and 6 coupled to the upper and lower surfaces of the cylinder 8.

상기 롤링일체형 회전축(20)의 편심부(22)와 접촉부(23)의 다른 변형예로서, 도 3에 도시한 바와 같이, 편심부(22)와 접촉부(23)의 상하면은 접촉부(23)의 가장자리가 높도록 경사지게 형성되어 이루어진다.As another modification of the eccentric portion 22 and the contact portion 23 of the rolling integrated rotary shaft 20, as shown in FIG. 3, the upper and lower surfaces of the eccentric portion 22 and the contact portion 23 are formed of the contact portion 23. It is formed to be inclined so that the edge is high.

상기 접촉부(23)의 외주면은 정밀 가공된다.The outer circumferential surface of the contact portion 23 is precision machined.

이하, 본 발명의 밀폐형 회전식 압축기의 냉매 가스 압축구조의 작용효과를 설명하면 다음과 같다.Hereinafter, the operational effects of the refrigerant gas compression structure of the hermetic rotary compressor of the present invention will be described.

본 발명의 밀폐형 회전식 압축기의 냉매 가스 압축구조는 먼저 전동기구부의 회전력이 롤링일체형 회전축(20)에 전달되면 롤링일체형 회전축(20)이 회전하면서 편심부(22)의 편심 회전에 의해 접촉부(23)가 함께 실린더 압축공간(P) 내주면에 접촉되면서 회전하게 된다. 상기 접촉부(23)가 실린더 압축공간(P)에 선접촉되어 회전하면서 실린더 압축공간(P)을 체적 변화시킴에 의해 냉매 가스를 흡입하여 압축시키게 된다.Refrigerant gas compression structure of the hermetic rotary compressor of the present invention is the contact portion 23 by the eccentric rotation of the eccentric part 22 while the rolling integral rotary shaft 20 is rotated when the rotational force of the electric mechanism is transmitted to the rolling integral rotary shaft 20. Is rotated while contacting the inner compression surface of the cylinder compression space (P) together. The contact part 23 sucks and compresses the refrigerant gas by changing the volume of the cylinder compression space P while linearly contacting and rotating the cylinder compression space P.

종래의 롤링피스톤(9)과 회전축 편심부(4a)가 별도의 부품으로 구성되어 있어 회전축(4)의 회전시 편심부(22)와 롤링피스톤(9)사이의 미끄럼 및 마찰 손실이 발생되었으나, 본 발명은 종래의 롤링피스톤(9)과 회전축 편심부(4a)가 일체로 형성된 롤링일체형 회전축(20)을 사용하게 됨으로써 롤링일체형 회전축(20)의 회전시 미끄럼이나 마찰 손실이 발생되는 것을 방지하게 되며, 또한 롤링피스톤(9)의 사용을 배제하게 됨으로써 부품 가공시 별도의 롤링피스톤(9)을 가공하지 않게 되어 부품 가공 및 조립이 간소화된다.Although the conventional rolling piston 9 and the rotating shaft eccentric portion 4a are composed of separate parts, slip and friction loss between the eccentric portion 22 and the rolling piston 9 are generated when the rotating shaft 4 is rotated. The present invention is to use the rolling integral rotary shaft 20 formed integrally with the conventional rolling piston (9) and the rotary shaft eccentric (4a) to prevent the sliding or frictional loss is generated during the rotation of the rolling integral rotary shaft 20 In addition, by eliminating the use of the rolling piston (9) does not process a separate rolling piston (9) during the machining of the part is simplified the processing and assembly of the part.

이상에서 설명한 바와 같이, 본 발명에 의한 밀폐형 회전식 압축기의 냉매 가스 압축구조는 종래의 롤링피스톤과 회전축 편심부가 일체로 형성된 롤링일체형 회전축을 사용하여 롤링일체형 회전축의 회전시 미끄럼이나 마찰 손실이 발생되는 것을 방지하게 됨으로써 압축성능을 향상시키고, 또한 롤링피스톤의 사용을 배제하게 되어 가공 및 조립이 수월하게 됨으로써 조립 생산성을 높일 수 있는 효과가 있다.As described above, the refrigerant gas compression structure of the hermetic rotary compressor according to the present invention uses a rolling integral rotary shaft in which a conventional rolling piston and a rotating shaft eccentric are integrally formed so that sliding or frictional loss occurs during rotation of the rolling integrated rotary shaft. By preventing it, the compression performance is improved, and the use of the rolling piston is eliminated, thereby making it easier to process and assemble, thereby increasing the assembly productivity.

Claims (3)

내부에 압축공간이 형성된 실린더와, 일정 직경과 길이로 형성되어 전동기구부와 결합되는 축부의 일측에 축부의 중심과 편심되도록 일정 두께를 갖는 원형으로 편심부가 형성되고 상기 편심부의 동심원상으로 일정 두께 연장되어 그 외주면이 실린더 압축공간 내주면에 선접촉되는 접촉부가 형성되어 이루어진 롤링일체형 회전축과, 상기 실린더의 일측에 스프링에 의해 지지되도록 삽입되어 그 단부가 상기 접촉부에 선접촉되어 실린더 압축공간을 고압부와 저압부로 나누는 베인을 포함하여 구성함을 특징으로 하는 밀폐형 회전식 압축기의 냉매 가스 압축구조.An eccentric portion is formed in a circular shape having a predetermined thickness so as to be eccentric with the center of the shaft portion on one side of the cylinder formed with a compression space and a predetermined diameter and length coupled to the power mechanism portion, and extends a predetermined thickness onto the concentric circle of the eccentric portion. And a rolling integral rotary shaft formed with a contact portion whose outer circumferential surface is in linear contact with the inner circumferential surface of the cylinder compression space, and is inserted to be supported by a spring on one side of the cylinder. Refrigerant gas compression structure of a hermetic rotary compressor, comprising a vane divided into parts. 제1항에 있어서, 상기 롤링일체형 회전축의 편심부와 접촉부의 상하면은 접촉부의 높이가 높도록 단차지게 형성됨을 특징으로 하는 밀폐형 회전식 압축기의 냉매 가스 압축구조.The refrigerant gas compression structure of claim 1, wherein the eccentric portion of the rolling integrated rotary shaft and the upper and lower surfaces of the contact portion are formed stepped so that the height of the contact portion is high. 제1항에 있어서, 상기 롤링일체형 회전축의 편심부와 접촉부의 상하면은 접촉부의 가장자리가 높도록 경사지게 형성됨을 특징으로 하는 밀폐형 회전식 압축기의 냉매 가스 압축구조.The refrigerant gas compression structure of claim 1, wherein the eccentric portion of the rolling integrated rotary shaft and the upper and lower surfaces of the contact portion are formed to be inclined to have a high edge of the contact portion.
KR1019980048431A 1998-11-12 1998-11-12 Structure for compressing refrigerant gas of closed-type rotary compressor KR20000032090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980048431A KR20000032090A (en) 1998-11-12 1998-11-12 Structure for compressing refrigerant gas of closed-type rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980048431A KR20000032090A (en) 1998-11-12 1998-11-12 Structure for compressing refrigerant gas of closed-type rotary compressor

Publications (1)

Publication Number Publication Date
KR20000032090A true KR20000032090A (en) 2000-06-05

Family

ID=19558022

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980048431A KR20000032090A (en) 1998-11-12 1998-11-12 Structure for compressing refrigerant gas of closed-type rotary compressor

Country Status (1)

Country Link
KR (1) KR20000032090A (en)

Similar Documents

Publication Publication Date Title
KR890000688B1 (en) Rotary compressor
EP1630421B1 (en) Lubricant pump of a compressor
US20090202376A1 (en) Scroll-Type Fluid Machine
EP0183332B1 (en) Suction tube seal for a rotary compressor
EP0683321A1 (en) Swinging rotary compressor
KR100607321B1 (en) Vane type vacuum pump
US5577903A (en) Rotary compressor
KR102269944B1 (en) Compressor
US4639198A (en) Suction tube seal for a rotary compressor
JPH0311188A (en) Compressor
KR20000032090A (en) Structure for compressing refrigerant gas of closed-type rotary compressor
US5788472A (en) Hermetic rotary compressor with eccentric roller
KR950001693Y1 (en) Rotary compressor
JPH021997B2 (en)
KR100873680B1 (en) Structure for preventing friction shift in hermetic type compressor
KR100332788B1 (en) Structure for lubrication of compressor
KR100304573B1 (en) Structure for preventing oil discharge in rotary compressor
WO2023045968A1 (en) Thrust structure of compressor, and compressor
KR100343727B1 (en) Structure for supporting crankshaft of scroll compressor
KR100417586B1 (en) Structure for preventing friction shift in hermetic type compressor
KR100425741B1 (en) Structure for reducing loss of gas flow in compressor
KR100299589B1 (en) Fluid appatus
KR100253195B1 (en) Apparatus for seperating high and low pressure area in cylinder of hermetic rotary compressor
KR0118462B1 (en) Rotary compressor
JPH0732953Y2 (en) Fluid compressor

Legal Events

Date Code Title Description
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid