WO2021201521A1 - Scroll compressor - Google Patents

Scroll compressor Download PDF

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Publication number
WO2021201521A1
WO2021201521A1 PCT/KR2021/003813 KR2021003813W WO2021201521A1 WO 2021201521 A1 WO2021201521 A1 WO 2021201521A1 KR 2021003813 W KR2021003813 W KR 2021003813W WO 2021201521 A1 WO2021201521 A1 WO 2021201521A1
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WO
WIPO (PCT)
Prior art keywords
communication path
back pressure
fixed scroll
gasket
pressure chamber
Prior art date
Application number
PCT/KR2021/003813
Other languages
French (fr)
Korean (ko)
Inventor
한영창
Original Assignee
두원중공업(주)
주식회사 두원전자
학교법인 두원학원
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Publication date
Application filed by 두원중공업(주), 주식회사 두원전자, 학교법인 두원학원 filed Critical 두원중공업(주)
Publication of WO2021201521A1 publication Critical patent/WO2021201521A1/en

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    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/026—Lubricant separation
    • 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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • 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
    • F04C2240/30—Casings or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/57—Seals

Definitions

  • the present invention relates to a scroll compressor, and more particularly, to a scroll-type compressor that sucks a refrigerant from the outside using a rotational force of a motor, compresses it, and then discharges it to the outside.
  • a compressor refers to a device for sucking in a gas, compressing it, and then discharging it to the outside.
  • Compressors are classified into electric type, mechanical type, etc. according to the type of power source, and are also classified into swash plate type, scroll type, screw type, etc. according to the driving principle.
  • the electric scroll compressor refers to a device that sucks a refrigerant from the outside through relative rotation of two scrolls, compresses the refrigerant, and supplies the refrigerant to another desired space or mechanical part.
  • a motor installed therein receives electricity from the outside to generate rotational force, and the refrigerant is sucked, compressed, and discharged through the rotational force.
  • the scroll compressor includes a main housing, a main frame, a rotating scroll, a fixed scroll, and a cover housing.
  • the external refrigerant flows into the inside through the main housing.
  • a motor and a rotating shaft coupled to the motor are accommodated.
  • a rotating scroll is interposed between the main frame and the fixed scroll. And as the rotating scroll rotates, the refrigerant is compressed between the spiral blades formed on the fixed scroll and the spiral blades formed on the rotating scroll. The compressed refrigerant is discharged to the outside through the cover housing.
  • a gasket is interposed between the cover housing forming the discharge pressure and the fixed scroll to maintain airtightness of the compressor.
  • the higher the discharge pressure the greater the pressure difference with the atmosphere is generated, so in order to maintain the gas tightness of the gasket, a lot of consideration is required when designing the material of the gasket, the bead, and the tightening torque of the bolt. This can lead to compressor reliability problems.
  • the present invention was developed to solve the above problems, and it is an object of the present invention to reduce the pressure acting on the gasket to facilitate airtight maintenance, thereby improving the reliability of the compressor.
  • the present invention includes a main housing having a suction chamber into which a refrigerant is introduced, and accommodating a motor and a rotating shaft coupled to the motor in the suction chamber; a main frame installed on the upper side of the main housing; a fixed scroll installed on the upper side of the main frame; a rotating scroll installed between the main frame and the fixed scroll, coupled to the rotating shaft, a back pressure chamber formed between the main frame, and a compression chamber formed between the main frame and the fixed scroll; a cover housing installed on the upper side of the fixed scroll and having a discharge chamber for discharging refrigerant to the outside; and a gasket installed between the fixed scroll and the cover housing;
  • the gasket provides a scroll compressor in which an inner bead and an outer bead disposed radially outside the inner bead are formed.
  • a back pressure chamber communication path for supplying oil separated from a refrigerant to the back pressure chamber through an oil separator installed in the discharge chamber is formed at a portion in contact with the gasket, and the inner bead includes the back pressure chamber communication path and a first inner bead disposed on a radially inner side of the , wherein the outer bead includes a first outer bead disposed on a radially outer side of the back pressure chamber communication path.
  • a compression chamber communication path for supplying the oil introduced from the back pressure chamber to an upper side of the fixed scroll to the compression chamber is formed at a portion in contact with the gasket, and the inner bead includes: and a second inner bead disposed radially inside, wherein the outer bead includes a second outer bead disposed radially outside the compression chamber communication path.
  • a back pressure chamber communication path for supplying oil separated from a refrigerant to the back pressure chamber through an oil separator installed in the discharge chamber is formed at a portion in contact with the gasket, and the inner bead includes the back pressure chamber communication path and a first inner bead disposed on a radially inner side of the , wherein the outer bead includes a first outer bead disposed on a radially outer side of the back pressure chamber communication path.
  • a compression chamber communication path for supplying the oil introduced from the back pressure chamber to an upper side of the fixed scroll to the compression chamber is formed at a portion in contact with the gasket, and the inner bead includes: and a second inner bead disposed radially inside, wherein the outer bead includes a second outer bead disposed radially outside the compression chamber communication path.
  • the inner bead and the outer bead protrude upward from the gasket, respectively.
  • the inner bead and the outer bead protrude downward from the gasket, respectively.
  • the gasket is provided with double inner and outer beads protruding along the axial direction and extending in the circumferential direction, and a high-pressure discharge chamber is applied to the center of the cover housing.
  • a pressure distribution having an intermediate value between the atmospheric pressure and the refrigerant pressure in the discharge chamber between the inner bead and the outer bead, the pressure difference between the suction chamber and the atmosphere can be reduced, and airtightness by the gasket performance can be improved.
  • the refrigerant leakage in the high-pressure discharge chamber is at the suction pressure and the intermediate pressure and is induced to the internal leakage, the refrigerant leakage to the outside of the compressor can be prevented.
  • FIG. 1 is a cross-sectional view of a scroll compressor according to the present invention.
  • FIG. 2 is a view showing a gasket and a cover housing of the scroll compressor according to the first embodiment of the present invention.
  • FIG 3 is a view showing a gasket and a fixed scroll of the scroll compressor according to the second embodiment of the present invention.
  • the scroll compressor 100 sucks a refrigerant, compresses it, and then discharges it to the outside.
  • the main housing 110 , the main frame 120 , the fixed scroll 130 , and rotation It includes a scroll 140 , a cover housing 150 , and gaskets 160 , 160a and 160b .
  • the main housing 110, the suction chamber 111 into which the refrigerant flows is formed therein.
  • a motor 112 and a rotating shaft 113 coupled to the motor 112 and rotating are accommodated in the suction chamber 111 .
  • the main frame 120 is installed above the main housing 110 .
  • the fixed scroll 130 is installed above the main frame 120 .
  • the rotating scroll 140 is installed between the main frame 120 and the fixed scroll 130 , and is coupled to the rotating shaft 113 to rotate.
  • a back pressure chamber 141 is formed between the rotating scroll 140 and the main frame 120 , and a compression chamber 131 is formed between the rotating scroll 140 and the fixed scroll 130 .
  • the compression chamber 131 is a space in which the refrigerant introduced from the suction chamber 111 is compressed by the rotation of the rotary scroll 140 .
  • the back pressure chamber 141 is a space in which oil exists, and the oil present in the back pressure chamber 141 presses the rotating scroll 140 upward, and the rotating scroll 140 is moved to the main frame 120 . ) to prevent friction between them as they are in direct contact.
  • the cover housing 150 is installed on the upper side of the fixed scroll 130 , and a discharge chamber 153 through which the refrigerant is discharged to the outside is formed.
  • the gaskets 160 , 160a and 160b are installed between the fixed scroll 130 and the cover housing 150 , and seal the discharge chamber 153 from the outside. Accordingly, the gaskets 160 , 160a and 160b prevent the refrigerant present in the discharge chamber 153 from leaking to the outside.
  • inner beads 161 and 162 and outer beads 163 and 164 are protruded from the gaskets 160 , 160a and 160b .
  • the inner beads 161 and 162 are formed to protrude from the gaskets 160, 160a, 160b in the axial direction of the rotation shaft 113, and are formed to extend along the circumferential direction of the gaskets 160, 160a, 160b.
  • the outer beads 163 and 164 are disposed on the outside of the inner beads 161 and 162 with respect to the radial direction of the gaskets 160 , 160a and 160b.
  • a back pressure chamber communication path 151 and a compression chamber communication path 152 are formed between the cover housing 150 and the fixed scroll 130 .
  • the back pressure chamber communication path 151 serves to supply oil separated from the refrigerant through an oil separator installed in the discharge chamber 153 to the back pressure chamber 141 .
  • the compression chamber communication path 152 supplies the oil flowing from the back pressure chamber 141 to the upper side of the fixed scroll 130 to the compression chamber 131 .
  • the inner beads 161 and 162 include a first inner bead 161 and a second inner bead 162 .
  • the outer beads 163 and 164 include a first outer bead 163 and a second outer bead 164 .
  • the first inner bead 161 and the first outer bead 163 are respectively disposed radially inside and outside the back pressure chamber communication path 151 to surround the back pressure chamber communication path 151 . Accordingly, the first inner bead 161 and the first outer bead 163 separate the back pressure chamber communication path 151 from the outside and the discharge chamber 141, and the back pressure chamber communication path 151 Prevents the oil flowing through the exposure to the outside or the discharge chamber (141).
  • the second inner bead 162 and the second outer bead 164 are respectively disposed radially inside and outside the compression chamber communication path 152 to surround the compression chamber communication path 152 . Accordingly, the second inner bead 162 and the second outer bead 164 separate the compression chamber communication path 152 from the outside and the discharge chamber 141, and the compression chamber communication path 152 Prevents the oil flowing through the exposure to the outside or the discharge chamber (141).
  • an intermediate pressure ( Middle pressure) is additionally formed, thereby forming a buffer space between the discharge chamber 153 and the outside of the scroll compressor 100 . Accordingly, according to the present invention, the sealing performance by the gaskets 160 , 160a and 160b can be improved, and leakage of the refrigerant from the discharge chamber 153 to the outside can be more effectively prevented.
  • the back pressure chamber communication path 151 and the compression chamber communication path 152 are in contact with the gasket 160a of the cover housing 150 , respectively. may be formed in the area.
  • the inner beads 161 and 162 and the outer beads 163 and 164 are formed to protrude upward from the gasket 160a, respectively, and are disposed in contact with the portion of the cover housing 150 in contact with the gasket 160a,
  • Each of the back pressure chamber communication path 151 and the compression chamber communication path 152 may be disposed to surround them.
  • the back pressure chamber communication path 151 and the compression chamber communication path 152 are, respectively, the gasket 160b of the fixed scroll 130 .
  • the inner beads 161 and 162 and the outer beads 163 and 164 are formed to protrude downward from the gasket 160b, respectively, and are disposed in contact with the portion of the fixed scroll 130 in contact with the gasket 160b,
  • Each of the back pressure chamber communication path 151 and the compression chamber communication path 152 may be disposed to surround them.
  • any one of the back pressure chamber communication path 151 and the compression chamber communication path 152 is connected to the gasket 160 in the cover housing 150 . It may be formed in a portion in contact with the other one of the fixed scroll 130 may be formed in a portion in contact with the gasket 160 .
  • the inner beads 161 and 162 and the outer beads 163 and 164 are formed to protrude upward or downward from the gasket 160 in correspondence to positions where the back pressure chamber communication path 151 and the compression chamber communication path 152 are formed.
  • the gasket is provided with a double inner bead and an outer bead protruding along the axial direction and extending in the circumferential direction, and a high-pressure discharge pressure is applied to the center portion of the cover housing.

Abstract

The present invention provides a scroll compressor comprising: a main housing having a suction chamber into which a refrigerant flows, and accommodating a motor and a rotating shaft joined to the motor in the suction chamber; a main frame which is installed on the upper side of the main housing; a fixed scroll which is installed on the upper side of the main frame; a rotating scroll which is installed between the main frame and the fixed scroll, is joined to the rotating shaft, has a back pressure chamber formed between the main frame and the rotating scroll, and has a compression chamber formed between the fixed scroll and the rotating scroll; a cover housing which is installed on the upper side of the fixed scroll and has a discharge chamber for discharging the refrigerant to the outside; and a gasket which is installed between the fixed scroll and the cover housing, wherein the gasket includes an inner bead and an outer bead disposed radially outside the inner bead.

Description

스크롤 압축기scroll compressor
본 발명은 스크롤 압축기에 관한 것으로서, 더욱 상세하게는, 모터의 회전력을 이용하여 외부로부터 냉매를 흡입하여 압축한 후, 이를 외부로 토출시키는 스크롤 타입의 압축기에 관한 것이다.The present invention relates to a scroll compressor, and more particularly, to a scroll-type compressor that sucks a refrigerant from the outside using a rotational force of a motor, compresses it, and then discharges it to the outside.
일반적으로, 압축기란, 기체를 흡입하여 압축시킨 후, 이를 외부로 토출시키는 장치를 의미한다. 압축기는 동력원의 종류에 따라 전동식, 기계식 등으로 분류되며, 구동원리에 따라 사판식, 스크롤식, 스크류식 등으로 분류되기도 한다.In general, a compressor refers to a device for sucking in a gas, compressing it, and then discharging it to the outside. Compressors are classified into electric type, mechanical type, etc. according to the type of power source, and are also classified into swash plate type, scroll type, screw type, etc. according to the driving principle.
그 중, 전동식 스크롤 압축기란, 두 개의 스크롤의 상대적인 회전을 통해, 외부로부터 냉매를 흡입하여 압축시킨 후, 이를 목적하는 다른 공간이나 기계부품으로 공급하는 장치를 의미한다. 그리고 이러한 전동식 스크롤 압축기는, 내부에 설치된 모터가 외부로부터 전기를 공급받아 회전력을 발생시키고, 이러한 회전력을 통해 냉매를 흡입, 압축 및 토출하게 된다.Among them, the electric scroll compressor refers to a device that sucks a refrigerant from the outside through relative rotation of two scrolls, compresses the refrigerant, and supplies the refrigerant to another desired space or mechanical part. And, in such an electric scroll compressor, a motor installed therein receives electricity from the outside to generate rotational force, and the refrigerant is sucked, compressed, and discharged through the rotational force.
상기 스크롤 압축기는, 메인하우징, 메인프레임, 회전스크롤, 고정스크롤 및 커버하우징을 포함한다. 외부의 냉매는, 메인하우징을 통해 내부로 유입된다. 메인하우징과 메인프레임의 사이에는, 모터 및 모터와 결합되는 회전축이 수용된다. 메인프레임과 고정스크롤의 사이에는 회전스크롤이 개재된다. 그리고 회전스크롤이 회전함에 따라, 고정스크롤에 형성된 나선형의 블레이드와, 회전스크롤에 형성된 나선형의 블레이드 사이에서 냉매가 압축되게 된다. 이렇게 압축된 냉매는, 커버하우징을 통해 외부로 토출되게 된다.The scroll compressor includes a main housing, a main frame, a rotating scroll, a fixed scroll, and a cover housing. The external refrigerant flows into the inside through the main housing. Between the main housing and the main frame, a motor and a rotating shaft coupled to the motor are accommodated. A rotating scroll is interposed between the main frame and the fixed scroll. And as the rotating scroll rotates, the refrigerant is compressed between the spiral blades formed on the fixed scroll and the spiral blades formed on the rotating scroll. The compressed refrigerant is discharged to the outside through the cover housing.
종래의 스크롤 압축기에 의하면, 토출압을 형성하는 커버하우징과 고정스크롤 사이에 가스켓이 개재되어 압축기의 기밀을 유지한다. 여기서, 토출압이 높을수록 대기와 압력차가 크게 발생되어 가스켓의 기밀을 유지하기 위해 가스켓의 재질, 비드, 볼트의 조임토크 등의 설계 시 많은 고려가 필요하고, 제조 공정상의 작은 문제에도 냉매 누설로 압축기의 신뢰성 문제를 초래할 수 있다.According to the conventional scroll compressor, a gasket is interposed between the cover housing forming the discharge pressure and the fixed scroll to maintain airtightness of the compressor. Here, the higher the discharge pressure, the greater the pressure difference with the atmosphere is generated, so in order to maintain the gas tightness of the gasket, a lot of consideration is required when designing the material of the gasket, the bead, and the tightening torque of the bolt. This can lead to compressor reliability problems.
본 발명은 상기와 같은 문제점을 해결하기 위해 개발된 것으로서, 가스켓에 작용하는 압력을 감압을 시켜 기밀유지가 용이하여 압축기 신뢰성을 향상시키도록 하는 데 목적이 있다.The present invention was developed to solve the above problems, and it is an object of the present invention to reduce the pressure acting on the gasket to facilitate airtight maintenance, thereby improving the reliability of the compressor.
본 발명은, 내부에 냉매가 유입되는 흡입실이 형성되며, 모터와, 상기 모터에 결합되는 회전축을 상기 흡입실에 수용하는 메인하우징; 상기 메인하우징의 상측에 설치되는 메인프레임; 상기 메인프레임의 상측에 설치되는 고정스크롤; 상기 메인프레임과 고정스크롤의 사이에 설치되며, 상기 회전축에 결합되고, 상기 메인프레임과의 사이에는 배압실이 형성되고, 상기 고정스크롤과의 사이에는 압축실이 형성되는 회전스크롤; 상기 고정스크롤의 상측에 설치되며, 외부로 냉매가 토출되는 토출실이 형성된 커버하우징; 및 상기 고정스크롤과 커버하우징의 사이에 설치되는 가스켓을 포함하되; 상기 가스켓은, 내측비드와, 상기 내측비드의 반경방향 외측에 배치되는 외측비드가 형성된 스크롤 압축기를 제공한다.The present invention includes a main housing having a suction chamber into which a refrigerant is introduced, and accommodating a motor and a rotating shaft coupled to the motor in the suction chamber; a main frame installed on the upper side of the main housing; a fixed scroll installed on the upper side of the main frame; a rotating scroll installed between the main frame and the fixed scroll, coupled to the rotating shaft, a back pressure chamber formed between the main frame, and a compression chamber formed between the main frame and the fixed scroll; a cover housing installed on the upper side of the fixed scroll and having a discharge chamber for discharging refrigerant to the outside; and a gasket installed between the fixed scroll and the cover housing; The gasket provides a scroll compressor in which an inner bead and an outer bead disposed radially outside the inner bead are formed.
상기 커버하우징은, 상기 가스켓과 접하는 부위에, 상기 토출실에 설치된 오일분리기를 통해 냉매로부터 분리된 오일을 상기 배압실로 공급하는 배압실 연통로가 형성되며, 상기 내측비드는, 상기 배압실 연통로의 반경방향 내측에 배치되는 제1내측비드를 포함하며, 상기 외측비드는, 상기 배압실 연통로의 반경방향 외측에 배치되는 제1외측비드를 포함한다.In the cover housing, a back pressure chamber communication path for supplying oil separated from a refrigerant to the back pressure chamber through an oil separator installed in the discharge chamber is formed at a portion in contact with the gasket, and the inner bead includes the back pressure chamber communication path and a first inner bead disposed on a radially inner side of the , wherein the outer bead includes a first outer bead disposed on a radially outer side of the back pressure chamber communication path.
상기 커버하우징은, 상기 가스켓과 접하는 부위에, 상기 배압실로부터 상기 고정스크롤의 상측으로 유입된 오일을 상기 압축실로 공급하는 압축실 연통로가 형성되며, 상기 내측비드는, 상기 압축실 연통로의 반경방향 내측에 배치되는 제2내측비드를 포함하며, 상기 외측비드는, 상기 압축실 연통로의 반경방향 외측에 배치되는 제2외측비드를 포함한다.In the cover housing, a compression chamber communication path for supplying the oil introduced from the back pressure chamber to an upper side of the fixed scroll to the compression chamber is formed at a portion in contact with the gasket, and the inner bead includes: and a second inner bead disposed radially inside, wherein the outer bead includes a second outer bead disposed radially outside the compression chamber communication path.
상기 고정스크롤은, 상기 가스켓과 접하는 부위에, 상기 토출실에 설치된 오일분리기를 통해 냉매로부터 분리된 오일을 상기 배압실로 공급하는 배압실 연통로가 형성되며, 상기 내측비드는, 상기 배압실 연통로의 반경방향 내측에 배치되는 제1내측비드를 포함하며, 상기 외측비드는, 상기 배압실 연통로의 반경방향 외측에 배치되는 제1외측비드를 포함한다.In the fixed scroll, a back pressure chamber communication path for supplying oil separated from a refrigerant to the back pressure chamber through an oil separator installed in the discharge chamber is formed at a portion in contact with the gasket, and the inner bead includes the back pressure chamber communication path and a first inner bead disposed on a radially inner side of the , wherein the outer bead includes a first outer bead disposed on a radially outer side of the back pressure chamber communication path.
상기 고정스크롤은, 상기 가스켓과 접하는 부위에, 상기 배압실로부터 상기 고정스크롤의 상측으로 유입된 오일을 상기 압축실로 공급하는 압축실 연통로가 형성되며, 상기 내측비드는, 상기 압축실 연통로의 반경방향 내측에 배치되는 제2내측비드를 포함하며, 상기 외측비드는, 상기 압축실 연통로의 반경방향 외측에 배치되는 제2외측비드를 포함한다.In the fixed scroll, a compression chamber communication path for supplying the oil introduced from the back pressure chamber to an upper side of the fixed scroll to the compression chamber is formed at a portion in contact with the gasket, and the inner bead includes: and a second inner bead disposed radially inside, wherein the outer bead includes a second outer bead disposed radially outside the compression chamber communication path.
상기 내측비드와 외측비드는, 각각 상기 가스켓으로부터 상측으로 돌출된다.The inner bead and the outer bead protrude upward from the gasket, respectively.
상기 내측비드와 외측비드는, 각각 상기 가스켓으로부터 하측으로 돌출된다.The inner bead and the outer bead protrude downward from the gasket, respectively.
본 발명에 따른 스크롤 압축기에 의하면, 가스켓에는 그 축방향을 따라 돌출되며 원주방향으로 연장 형성되는 내측비드와 외측 비드를 2중으로 구비하고, 커버하우징의 중심 부분에는 고압의 토출압이 작용하는 토출실을 형성시키며, 내측비드와 외측비드 사이에는 대기의 압력과 토출실에서의 냉매의 압력의 중간값을 갖는 압력 분포를 형성시킴으로써, 흡입실과 대기와의 압력차를 감소시킬 수 있으며, 가스켓에 의한 기밀성능을 향상시킬 수 있다. 또한, 본 발명에 의하면, 고압의 토출실에서의 냉매의 누설은 흡입압 및 중간압으로 되어있어 내부 누설로 유도되므로, 압축기 외부로의 냉매 누설을 방지 할 수 있다.According to the scroll compressor according to the present invention, the gasket is provided with double inner and outer beads protruding along the axial direction and extending in the circumferential direction, and a high-pressure discharge chamber is applied to the center of the cover housing. By forming a pressure distribution having an intermediate value between the atmospheric pressure and the refrigerant pressure in the discharge chamber between the inner bead and the outer bead, the pressure difference between the suction chamber and the atmosphere can be reduced, and airtightness by the gasket performance can be improved. In addition, according to the present invention, since the refrigerant leakage in the high-pressure discharge chamber is at the suction pressure and the intermediate pressure and is induced to the internal leakage, the refrigerant leakage to the outside of the compressor can be prevented.
도 1은 본 발명에 따른 스크롤 압축기의 단면도이다.1 is a cross-sectional view of a scroll compressor according to the present invention.
도 2는 본 발명의 제1실시예에 따른 스크롤 압축기의 가스켓과 커버하우징을 나타낸 도면이다.2 is a view showing a gasket and a cover housing of the scroll compressor according to the first embodiment of the present invention.
도 3은 본 발명의 제2실시예에 따른 스크롤 압축기의 가스켓과 고정스크롤을 나타낸 도면이다.3 is a view showing a gasket and a fixed scroll of the scroll compressor according to the second embodiment of the present invention.
본 발명은 도면에 도시된 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 다른 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 청구범위의 기술적 사상에 의하여 정해져야 할 것이다.Although the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.
도 1을 참조하면, 본 발명에 따른 스크롤 압축기(100)는, 냉매를 흡입하여 압축시킨 후 이를 외부로 토출하는 것으로서, 메인하우징(110), 메인프레임(120), 고정스크롤(130), 회전스크롤(140), 커버하우징(150) 및 가스켓(Gasket; 160,160a,160b)을 포함한다.Referring to FIG. 1 , the scroll compressor 100 according to the present invention sucks a refrigerant, compresses it, and then discharges it to the outside. The main housing 110 , the main frame 120 , the fixed scroll 130 , and rotation It includes a scroll 140 , a cover housing 150 , and gaskets 160 , 160a and 160b .
상기 메인하우징(110)은, 냉매가 유입되는 흡입실(111)이 내부에 형성된다. 상기 흡입실(111)에는 모터(112)와, 상기 모터(112)에 결합되어 회전하는 회전축(113)이 수용된다. 상기 메인프레임(120)은, 상기 메인하우징(110)의 상측에 설치된다. 상기 고정스크롤(130)은, 상기 메인프레임(120)의 상측에 설치된다. 상기 회전스크롤(140)은, 상기 메인프레임(120)과 고정스크롤(130)의 사이에 설치되며, 상기 회전축(113)에 결합되어 회전한다.The main housing 110, the suction chamber 111 into which the refrigerant flows is formed therein. A motor 112 and a rotating shaft 113 coupled to the motor 112 and rotating are accommodated in the suction chamber 111 . The main frame 120 is installed above the main housing 110 . The fixed scroll 130 is installed above the main frame 120 . The rotating scroll 140 is installed between the main frame 120 and the fixed scroll 130 , and is coupled to the rotating shaft 113 to rotate.
상기 회전스크롤(140)과 상기 메인프레임(120)의 사이에는 배압실(141)이 형성되며, 상기 회전스크롤(140)과 고정스크롤(130)의 사이에는 압축실(131)이 형성된다. 상기 압축실(131)은, 상기 흡입실(111)로부터 유입된 냉매가 상기 회전스크롤(140)의 회전에 의해 압축되는 공간이다. 상기 배압실(141)은, 오일이 존재하는 공간으로서, 상기 배압실(141)에 존재하는 오일은 상기 회전스크롤(140)을 상측으로 가압하여, 상기 회전스크롤(140)이 상기 메인프레임(120)과 직접 접촉됨에 따라 그 사이에서 마찰이 발생되는 것을 방지한다.A back pressure chamber 141 is formed between the rotating scroll 140 and the main frame 120 , and a compression chamber 131 is formed between the rotating scroll 140 and the fixed scroll 130 . The compression chamber 131 is a space in which the refrigerant introduced from the suction chamber 111 is compressed by the rotation of the rotary scroll 140 . The back pressure chamber 141 is a space in which oil exists, and the oil present in the back pressure chamber 141 presses the rotating scroll 140 upward, and the rotating scroll 140 is moved to the main frame 120 . ) to prevent friction between them as they are in direct contact.
상기 커버하우징(150)은, 상기 고정스크롤(130)의 상측에 설치되며, 외부로 냉매가 토출되는 토출실(153)이 형성된다. 상기 가스켓(160,160a,160b)은, 상기 고정스크롤(130)과 커버하우징(150)의 사이에 설치되며, 상기 토출실(153)을 외부로부터 밀폐시킨다. 따라서 상기 가스켓(160,160a,160b)은, 상기 토출실(153)에 존재하는 냉매가 외부로 누출되는 것을 방지한다.The cover housing 150 is installed on the upper side of the fixed scroll 130 , and a discharge chamber 153 through which the refrigerant is discharged to the outside is formed. The gaskets 160 , 160a and 160b are installed between the fixed scroll 130 and the cover housing 150 , and seal the discharge chamber 153 from the outside. Accordingly, the gaskets 160 , 160a and 160b prevent the refrigerant present in the discharge chamber 153 from leaking to the outside.
도 2 또는 도 3을 참조하면, 상기 가스켓(160,160a,160b)에는, 내측비드(161,162)와 외측비드(163,164)가 돌출 형성된다. 상기 내측비드(161,162)는, 상기 가스켓(160,160a,160b)으로부터 상기 회전축(113)의 축방향을 따라 돌출 형성되며, 상기 가스켓(160,160a,160b)의 원주방향을 따라 연장된 형상으로 형성된다. 상기 외측비드(163,164)는, 상기 가스켓(160,160a,160b)의 반경방향을 기준으로 하여 상기 내측비드(161,162)의 외측에 배치된다.2 or 3 , inner beads 161 and 162 and outer beads 163 and 164 are protruded from the gaskets 160 , 160a and 160b . The inner beads 161 and 162 are formed to protrude from the gaskets 160, 160a, 160b in the axial direction of the rotation shaft 113, and are formed to extend along the circumferential direction of the gaskets 160, 160a, 160b. . The outer beads 163 and 164 are disposed on the outside of the inner beads 161 and 162 with respect to the radial direction of the gaskets 160 , 160a and 160b.
상기 커버하우징(150)과 고정스크롤(130)의 사이에는, 배압실 연통로(151) 및 압축실 연통로(152)가 형성된다. 상기 배압실 연통로(151)는, 상기 토출실(153)에 설치된 오일분리기를 통해 냉매로부터 분리된 오일을, 상기 배압실(141)로 공급하는 역할을 한다. 상기 압축실 연통로(152)는, 상기 배압실(141)로부터 상기 고정스크롤(130)의 상측으로 유입된 오일을, 상기 압축실(131)로 공급한다.A back pressure chamber communication path 151 and a compression chamber communication path 152 are formed between the cover housing 150 and the fixed scroll 130 . The back pressure chamber communication path 151 serves to supply oil separated from the refrigerant through an oil separator installed in the discharge chamber 153 to the back pressure chamber 141 . The compression chamber communication path 152 supplies the oil flowing from the back pressure chamber 141 to the upper side of the fixed scroll 130 to the compression chamber 131 .
상기 내측비드(161,162)는, 제1내측비드(161)와 제2내측비드(162)를 포함한다. 그리고 상기 외측비드(163,164)는, 제1외측비드(163)와 제2외측비드(164)를 포함한다.The inner beads 161 and 162 include a first inner bead 161 and a second inner bead 162 . In addition, the outer beads 163 and 164 include a first outer bead 163 and a second outer bead 164 .
상기 제1내측비드(161)와 제1외측비드(163)는, 각각 상기 배압실 연통로(151)의 반경방향 내측과 외측에 배치되어, 상기 배압실 연통로(151)를 감싼다. 이에 따라 상기 제1내측비드(161)와 제1외측비드(163)는, 상기 배압실 연통로(151)를 외부 및 상기 토출실(141)과 분리되도록 하며, 상기 배압실 연통로(151)를 통해 유동하는 오일이 외부 또는 상기 토출실(141)로 노출되는 것을 방지한다.The first inner bead 161 and the first outer bead 163 are respectively disposed radially inside and outside the back pressure chamber communication path 151 to surround the back pressure chamber communication path 151 . Accordingly, the first inner bead 161 and the first outer bead 163 separate the back pressure chamber communication path 151 from the outside and the discharge chamber 141, and the back pressure chamber communication path 151 Prevents the oil flowing through the exposure to the outside or the discharge chamber (141).
상기 제2내측비드(162)와 제2외측비드(164)는, 각각 상기 압축실 연통로(152)의 반경방향 내측과 외측에 배치되어, 상기 압축실 연통로(152)를 감싼다. 이에 따라 상기 제2내측비드(162)와 제2외측비드(164)는, 상기 압축실 연통로(152)를 외부 및 상기 토출실(141)과 분리되도록 하며, 상기 압축실 연통로(152)를 통해 유동하는 오일이 외부 또는 상기 토출실(141)로 노출되는 것을 방지한다.The second inner bead 162 and the second outer bead 164 are respectively disposed radially inside and outside the compression chamber communication path 152 to surround the compression chamber communication path 152 . Accordingly, the second inner bead 162 and the second outer bead 164 separate the compression chamber communication path 152 from the outside and the discharge chamber 141, and the compression chamber communication path 152 Prevents the oil flowing through the exposure to the outside or the discharge chamber (141).
이와 같은 본 발명에 따른 스크롤 압축기(100)에 의하면, 상기 토출실(153)과 스크롤 압축기(100)의 외부 사이에, 상기 내측비드(161,162)와 외측비드(163,164)에 의해 정의되는 중간압(Middle pressure)의 공간이 추가로 형성됨으로써, 상기 토출실(153)로부터 스크롤 압축기(100)의 외부 사이에 완충공간을 형성할 수 있다. 따라서 본 발명에 의하면, 상기 가스켓(160,160a,160b)에 의한 씰링 성능을 향상시킬 수 있으며, 상기 토출실(153)로부터 외부로 냉매가 누출되는 것을 보다 효과적으로 방지할 수 있다.According to the scroll compressor 100 according to the present invention as described above, between the discharge chamber 153 and the outside of the scroll compressor 100, an intermediate pressure ( Middle pressure) is additionally formed, thereby forming a buffer space between the discharge chamber 153 and the outside of the scroll compressor 100 . Accordingly, according to the present invention, the sealing performance by the gaskets 160 , 160a and 160b can be improved, and leakage of the refrigerant from the discharge chamber 153 to the outside can be more effectively prevented.
도 2를 참조하면, 본 발명의 제1실시예에 있어서, 상기 배압실 연통로(151)와 상기 압축실 연통로(152)는, 각각 상기 커버하우징(150) 중 상기 가스켓(160a)과 접하는 부위에 형성될 수 있다. 이때, 상기 내측비드(161,162)와 외측비드(163,164)는, 각각 상기 가스켓(160a)으로부터 상측으로 돌출 형성되며, 상기 커버하우징(150) 중 상기 가스켓(160a)과 접하는 부위에 접하도록 배치되어, 각각 상기 배압실 연통로(151)와 상기 압축실 연통로(152)를 감싸도록 배치될 수 있다.Referring to FIG. 2 , in the first embodiment of the present invention, the back pressure chamber communication path 151 and the compression chamber communication path 152 are in contact with the gasket 160a of the cover housing 150 , respectively. may be formed in the area. At this time, the inner beads 161 and 162 and the outer beads 163 and 164 are formed to protrude upward from the gasket 160a, respectively, and are disposed in contact with the portion of the cover housing 150 in contact with the gasket 160a, Each of the back pressure chamber communication path 151 and the compression chamber communication path 152 may be disposed to surround them.
이와는 반대로, 도 3을 참조하면, 본 발명의 제2실시예에 있어서, 상기 배압실 연통로(151)와 상기 압축실 연통로(152)는, 각각 상기 고정스크롤(130) 중 상기 가스켓(160b)과 접하는 부위에 형성될 수 있다. 이때, 상기 내측비드(161,162)와 외측비드(163,164)는, 각각 상기 가스켓(160b)으로부터 하측으로 돌출 형성되며, 상기 고정스크롤(130) 중 상기 가스켓(160b)과 접하는 부위에 접하도록 배치되어, 각각 상기 배압실 연통로(151)와 상기 압축실 연통로(152)를 감싸도록 배치될 수 있다.On the contrary, referring to FIG. 3 , in the second embodiment of the present invention, the back pressure chamber communication path 151 and the compression chamber communication path 152 are, respectively, the gasket 160b of the fixed scroll 130 . ) may be formed in the area in contact with At this time, the inner beads 161 and 162 and the outer beads 163 and 164 are formed to protrude downward from the gasket 160b, respectively, and are disposed in contact with the portion of the fixed scroll 130 in contact with the gasket 160b, Each of the back pressure chamber communication path 151 and the compression chamber communication path 152 may be disposed to surround them.
다만, 이는 본 발명과 관련된 여러 실시예 중 하나에 불과하며, 상기 배압실 연통로(151)와 압축실 연통로(152)는, 어느 하나가 상기 커버하우징(150) 중 상기 가스켓(160)과 접하는 부위에 형성되고, 다른 하나가 상기 고정스크롤(130) 중 상기 가스켓(160)과 접하는 부위에 형성될 수 있다. 그리고 상기 내측비드(161,162)와 외측비드(163,164)는, 상기 배압실 연통로(151)와 압축실 연통로(152)가 형성된 위치에 대응하여, 상기 가스켓(160)으로부터 상측 또는 하측으로 돌출 형성될 수 있다.However, this is only one of several embodiments related to the present invention, and any one of the back pressure chamber communication path 151 and the compression chamber communication path 152 is connected to the gasket 160 in the cover housing 150 . It may be formed in a portion in contact with the other one of the fixed scroll 130 may be formed in a portion in contact with the gasket 160 . In addition, the inner beads 161 and 162 and the outer beads 163 and 164 are formed to protrude upward or downward from the gasket 160 in correspondence to positions where the back pressure chamber communication path 151 and the compression chamber communication path 152 are formed. can be
이와 같은 본 발명에 따른 스크롤 압축기에 의하면, 가스켓에는 그 축방향을 따라 돌출되며 원주방향으로 연장 형성되는 내측비드와 외측 비드를 2중으로 구비하고, 커버하우징의 중심 부분에는 고압의 토출압이 작용하는 토출실을 형성시키며, 내측비드와 외측비드 사이에는 대기의 압력과 토출실에서의 냉매의 압력의 중간값을 갖는 압력 분포를 형성시킴으로써, 흡입실과 대기와의 압력차를 감소시킬 수 있으며, 가스켓에 의한 기밀성능을 향상시킬 수 있다. 또한, 본 발명에 의하면, 고압의 토출실에서의 냉매의 누설은 흡입압 및 중간압으로 되어있어 내부 누설로 유도되므로, 압축기 외부로의 냉매 누설을 방지 할 수 있다.According to the scroll compressor according to the present invention as described above, the gasket is provided with a double inner bead and an outer bead protruding along the axial direction and extending in the circumferential direction, and a high-pressure discharge pressure is applied to the center portion of the cover housing. By forming a discharge chamber and forming a pressure distribution having an intermediate value between the atmospheric pressure and the refrigerant pressure in the discharge chamber between the inner bead and the outer bead, the pressure difference between the suction chamber and the atmosphere can be reduced, and the gasket airtightness can be improved. In addition, according to the present invention, since the refrigerant leakage in the high-pressure discharge chamber is at the suction pressure and the intermediate pressure and is induced to the internal leakage, the refrigerant leakage to the outside of the compressor can be prevented.

Claims (7)

  1. 내부에 냉매가 유입되는 흡입실이 형성되며, 모터와, 상기 모터에 결합되는 회전축을 상기 흡입실에 수용하는 메인하우징;a main housing having a suction chamber into which a refrigerant flows, and accommodating a motor and a rotating shaft coupled to the motor in the suction chamber;
    상기 메인하우징의 상측에 설치되는 메인프레임;a main frame installed on the upper side of the main housing;
    상기 메인프레임의 상측에 설치되는 고정스크롤;a fixed scroll installed on the upper side of the main frame;
    상기 메인프레임과 고정스크롤의 사이에 설치되며, 상기 회전축에 결합되고, 상기 메인프레임과의 사이에는 배압실이 형성되고, 상기 고정스크롤과의 사이에는 압축실이 형성되는 회전스크롤;a rotating scroll installed between the main frame and the fixed scroll, coupled to the rotating shaft, a back pressure chamber formed between the main frame, and a compression chamber formed between the main frame and the fixed scroll;
    상기 고정스크롤의 상측에 설치되며, 외부로 냉매가 토출되는 토출실이 형성된 커버하우징; 및a cover housing installed on the upper side of the fixed scroll and having a discharge chamber for discharging refrigerant to the outside; and
    상기 고정스크롤과 커버하우징의 사이에 설치되는 가스켓을 포함하되;a gasket installed between the fixed scroll and the cover housing;
    상기 가스켓은, 내측비드와, 상기 내측비드의 반경방향 외측에 배치되는 외측비드가 형성된 스크롤 압축기.The gasket may include an inner bead and an outer bead disposed radially outside the inner bead.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 커버하우징은, 상기 가스켓과 접하는 부위에, 상기 토출실에 설치된 오일분리기를 통해 냉매로부터 분리된 오일을 상기 배압실로 공급하는 배압실 연통로가 형성되며,In the cover housing, a back pressure chamber communication path for supplying oil separated from the refrigerant to the back pressure chamber through an oil separator installed in the discharge chamber is formed at a portion in contact with the gasket,
    상기 내측비드는, 상기 배압실 연통로의 반경방향 내측에 배치되는 제1내측비드를 포함하며,The inner bead includes a first inner bead disposed radially inside the back pressure chamber communication path,
    상기 외측비드는, 상기 배압실 연통로의 반경방향 외측에 배치되는 제1외측비드를 포함하는 스크롤 압축기.The outer bead includes a first outer bead disposed radially outside the back pressure chamber communication path.
  3. 청구항 1에 있어서,The method according to claim 1,
    상기 커버하우징은, 상기 가스켓과 접하는 부위에, 상기 배압실로부터 상기 고정스크롤의 상측으로 유입된 오일을 상기 압축실로 공급하는 압축실 연통로가 형성되며,In the cover housing, a compression chamber communication path for supplying the oil flowing from the back pressure chamber to the upper side of the fixed scroll to the compression chamber is formed at a portion in contact with the gasket,
    상기 내측비드는, 상기 압축실 연통로의 반경방향 내측에 배치되는 제2내측비드를 포함하며,The inner bead includes a second inner bead disposed on the radially inner side of the compression chamber communication path,
    상기 외측비드는, 상기 압축실 연통로의 반경방향 외측에 배치되는 제2외측비드를 포함하는 스크롤 압축기.The outer bead includes a second outer bead disposed radially outside the compression chamber communication path.
  4. 청구항 1에 있어서,The method according to claim 1,
    상기 고정스크롤은, 상기 가스켓과 접하는 부위에, 상기 토출실에 설치된 오일분리기를 통해 냉매로부터 분리된 오일을 상기 배압실로 공급하는 배압실 연통로가 형성되며,In the fixed scroll, a back pressure chamber communication path for supplying oil separated from the refrigerant to the back pressure chamber through an oil separator installed in the discharge chamber is formed at a portion in contact with the gasket,
    상기 내측비드는, 상기 배압실 연통로의 반경방향 내측에 배치되는 제1내측비드를 포함하며,The inner bead includes a first inner bead disposed radially inside the back pressure chamber communication path,
    상기 외측비드는, 상기 배압실 연통로의 반경방향 외측에 배치되는 제1외측비드를 포함하는 스크롤 압축기.The outer bead includes a first outer bead disposed radially outside the back pressure chamber communication path.
  5. 청구항 1에 있어서,The method according to claim 1,
    상기 고정스크롤은, 상기 가스켓과 접하는 부위에, 상기 배압실로부터 상기 고정스크롤의 상측으로 유입된 오일을 상기 압축실로 공급하는 압축실 연통로가 형성되며,In the fixed scroll, a compression chamber communication path for supplying oil flowing from the back pressure chamber to an upper side of the fixed scroll to the compression chamber is formed at a portion in contact with the gasket,
    상기 내측비드는, 상기 압축실 연통로의 반경방향 내측에 배치되는 제2내측비드를 포함하며,The inner bead includes a second inner bead disposed on the radially inner side of the compression chamber communication path,
    상기 외측비드는, 상기 압축실 연통로의 반경방향 외측에 배치되는 제2외측비드를 포함하는 스크롤 압축기.The outer bead includes a second outer bead disposed radially outside the compression chamber communication path.
  6. 청구항 2 또는 청구항 3에 있어서,4. The method according to claim 2 or 3,
    상기 내측비드와 외측비드는, 각각 상기 가스켓으로부터 상측으로 돌출되는 스크롤 압축기.The inner bead and the outer bead respectively protrude upward from the gasket.
  7. 청구항 4 또는 청구항 5에 있어서,6. The method according to claim 4 or 5,
    상기 내측비드와 외측비드는, 각각 상기 가스켓으로부터 하측으로 돌출되는 스크롤 압축기.The inner bead and the outer bead respectively protrude downward from the gasket.
PCT/KR2021/003813 2020-03-30 2021-03-29 Scroll compressor WO2021201521A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004301090A (en) * 2003-03-31 2004-10-28 Toyota Industries Corp Electric compressor
WO2007001034A1 (en) * 2005-06-29 2007-01-04 Keihin Corporation Scroll compressor
JP2013036341A (en) * 2011-08-03 2013-02-21 Toyota Industries Corp Compressor
KR20180101660A (en) * 2017-03-02 2018-09-13 학교법인 두원학원 Scroll compressor
KR20190038388A (en) * 2017-09-29 2019-04-08 가부시키가이샤 도요다 지도숏키 Compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004301090A (en) * 2003-03-31 2004-10-28 Toyota Industries Corp Electric compressor
WO2007001034A1 (en) * 2005-06-29 2007-01-04 Keihin Corporation Scroll compressor
JP2013036341A (en) * 2011-08-03 2013-02-21 Toyota Industries Corp Compressor
KR20180101660A (en) * 2017-03-02 2018-09-13 학교법인 두원학원 Scroll compressor
KR20190038388A (en) * 2017-09-29 2019-04-08 가부시키가이샤 도요다 지도숏키 Compressor

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