WO2013176448A1 - Hermetically-sealed compressor in which member for reducing discharge pulsations is installed - Google Patents

Hermetically-sealed compressor in which member for reducing discharge pulsations is installed Download PDF

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Publication number
WO2013176448A1
WO2013176448A1 PCT/KR2013/004416 KR2013004416W WO2013176448A1 WO 2013176448 A1 WO2013176448 A1 WO 2013176448A1 KR 2013004416 W KR2013004416 W KR 2013004416W WO 2013176448 A1 WO2013176448 A1 WO 2013176448A1
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WIPO (PCT)
Prior art keywords
pulsation reducing
reducing member
pulsation
chamber
discharge
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PCT/KR2013/004416
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French (fr)
Korean (ko)
Inventor
이용석
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동부대우전자 주식회사
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Application filed by 동부대우전자 주식회사 filed Critical 동부대우전자 주식회사
Priority to CN201380001426.2A priority Critical patent/CN104471247A/en
Priority to US14/116,756 priority patent/US20140377107A1/en
Priority to EP13793942.7A priority patent/EP2716911A4/en
Publication of WO2013176448A1 publication Critical patent/WO2013176448A1/en

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    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/001—Noise damping
    • 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
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
    • 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
    • F04B39/121—Casings
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00

Definitions

  • the present invention relates to a compressor, and more particularly, to a hermetic compressor equipped with a discharge pulsation reducing member capable of controlling pulsation components of a working fluid to reduce vibration and noise of the compressor and a refrigeration cycle.
  • a refrigeration cycle is liquefied in a condenser of refrigerant gas, which has been compressed to a high temperature and a high pressure by the operation of a compressor, and then vaporized in an evaporator through an expansion valve. It is a device that cools by the vaporization heat of the refrigerant.
  • the compressor is for compressing the refrigerant in the gaseous state which is introduced after the liquid is evaporated in the evaporator to take away the surrounding heat and to cool the incoming gas at high temperature and high pressure.
  • the pulsation component generated when discharging the gaseous refrigerant from the compressor to the condenser has a piping of the refrigeration cycle, which is also a major cause of the noise and vibration of the refrigeration cycle.
  • the discharge muffler for reducing the noise in the discharge passage of the compressor is provided on the cylinder block.
  • the discharge muffler is to reduce pulsation of the refrigerant discharged from the compressor.
  • the discharge muffler is divided into two parts, the first chamber and the second chamber, and the first and second chambers are connected through a connection flow path.
  • the first chamber is connected through a cylinder cover and a flow path having a space for receiving a high-pressure refrigerant from the cylinder, and a discharge pipe is connected to the second chamber.
  • the cylinder block In order to install it, it is exposed to the outside of the cylinder block and may interfere with the inner wall of the outer case, so this should be considered when designing the case. Especially when the pipe is accommodated in the chamber, the chamber must be large enough to accommodate the pipe. Similarly, the cylinder block will be larger in size.
  • an object of the present invention is to provide a connection flow path connecting the first chamber and the second chamber inside the cylinder block, the flow path of the refrigerant in the connection flow path It is to install a pulsation reducing member to increase the pulsation can be reduced without taking a separate space.
  • a hermetic compressor equipped with a discharge pulsation reducing member includes a case; A cylinder block installed in the case; A discharge muffler having a first chamber and a second chamber separated from each other so as to reduce a pulsation component of the discharged refrigerant, and a connection flow path formed inside the first chamber and the second chamber; And a pulsation reducing member which is inserted into and fixed to the connection passage and has a pulsation reducing passage formed on a circumferential surface thereof.
  • the pulsation reduction channel is characterized in that the path of the refrigerant is formed together with the connection channel.
  • the pulsation reducing channel of the pulsation reducing member is characterized in that it is made of a spiral shape.
  • the pulsation reducing member is characterized in that is screwed and fixed to the corresponding connection passage.
  • the pulsation reducing member is formed to be tapered in the longitudinal direction, it is characterized in that it is fixed to the connecting flow path by interference fit method.
  • the pulsation reducing member is characterized in that the processing of the head portion so as to use a tool for coupling to the connection passage.
  • Cross section of the pulsation reducing member is characterized in that consisting of any one of a circular, polygonal shape.
  • the pulsation reduction flow path is characterized in that the inlet end and the outlet end are communicated in the longitudinal direction at both ends.
  • a connection flow path connecting the first chamber and the second chamber is provided inside the cylinder block, and a flow path of the refrigerant is provided in the connection flow path.
  • the pulsation reducing member is installed in the connection passage in the cylinder block, the size of the outer case can be reduced without the need for a separate installation space, thereby increasing the space utilization and productivity of the compressor.
  • the pulsation control can be performed according to the situation by changing the length and the cross-sectional area of the pulsation reducing passage of the pulsation reducing member according to the pulsation characteristics of the compressor.
  • FIG. 1 and 2 are a cutaway perspective view and a front view showing a hermetic compressor to which the pulsation reducing member according to the present invention is applied.
  • FIG. 3 is a cross-sectional view showing a hermetic compressor equipped with a discharge pulsation reducing member according to the present invention.
  • FIG. 4 is a perspective view showing an embodiment of the pulsation reducing member of FIG.
  • 5 and 6 are perspective views showing another embodiment of the pulsation reducing member according to the present invention.
  • the discharge pulsation reduction compressor according to the present invention is usually installed in the machine room of the refrigerator and connected to a condenser (not shown) to compress the gaseous refrigerant to high pressure and then supply it to the condenser.
  • the cylinder block 100 is provided in the case 1, and the discharge muffler 200 for reducing the pulsation component of the refrigerant
  • the discharge muffler 200 is formed by separating the first chamber 210 and the second chamber 220, respectively, and the first chamber 210 and the second chamber 220 are formed inside the discharge muffler 200. It is connected via the connection flow path 10 formed.
  • the first chamber 210 is connected to the cylinder cover 211 and the flow path 212 having a space for receiving a high-pressure refrigerant from the cylinder on one side, the discharge chamber is connected to the second chamber 220 221 is connected.
  • connection flow path 10 performs a function of controlling the pulsation component of the refrigerant along with a function of connecting the first chamber 210 and the second chamber 220.
  • the high temperature and high pressure refrigerant flowing into the discharge muffler 200 is introduced into the first chamber 210 and then transferred to the second chamber 220 through the connection flow path 10 to reduce the flow rate of the refrigerant.
  • the reduced refrigerant is supplied to the condenser through the discharge pipe 221.
  • a bar-shaped pulsation reducing member 20 for increasing the flow path of the refrigerant is inserted into and fixed thereto.
  • a pulsation reducing passage 21 having a groove shape is formed on the circumferential surface thereof, and the pulsation reducing passage 21 is formed.
  • the inlet end 22 and the outlet end 23 which communicate in the longitudinal direction at both ends are formed.
  • a thread is formed on the circumferential surface of the pulsation reduction member 20 and can be fastened to the corresponding connection flow path 10.
  • Formed to form a mutually screwed together, or tapered in the longitudinal direction is preferably fixed to the connection flow path 10 by the interference fit method.
  • the pulsation reduction passage 21 forms a path of the refrigerant together with the connection passage 10.
  • the position and length of the thread for fastening the pulsation reducing member 20 to the connection channel 10 can be appropriately adjusted according to the processing convenience.
  • the head 24 preferably adopts a variety of forms so that a tool for engagement can be easily used.
  • cross-section of the pulsation reducing member 20 may be formed in a polygonal shape as well as circular.
  • the refrigerant flowing into the first chamber 210 passes through the inlet end 22 of the pulsation reducing member 20, passes through the pulsation reducing passage 21, and then discharges to the outlet end 23. And is transferred to the second chamber 220.
  • connection flow path 10 by extending the passage length of the connection flow path 10 through the pulsation reduction flow path 21 formed in the pulsation reduction member 20, the second chamber from the first chamber 210 through the connection flow path 10. Since the flow rate of the refrigerant delivered to 220 is reduced, it is possible to significantly reduce noise or vibration generated in the compressor.
  • the pulsation reduction flow passage 21 is preferably to be able to adjust the length and cross-sectional area to enable pulsation control according to the pulsation component, the length and cross-sectional area of the pulsation reduction flow passage 21 at a frequency for controlling the pulsation component It can be adjusted accordingly.
  • the pulsation reduction passage 21 formed in the pulsation reduction member 20 may adopt various methods such as a spiral flow path to adjust the length thereof.
  • the embodiment of the present invention is a pulsation reducing member (a) in the connection passage 10 between the first chamber 210 and the second chamber 220 While the frequency band of the refrigerant measured in the state where 20) is installed is shown, the cited example shows the frequency band of the refrigerant measured in the state where the pulsation reducing member 20 is not installed.
  • the pulsation reducing member 20 is installed in the connecting flow path 10 between the first chamber 210 and the second chamber 220, but is not necessarily limited to this, pulsation If the reducing member 20 is installed to reduce the vibration and noise of the refrigeration cycle may be installed in any position.
  • the pulsation reducing member is formed in the flow path 212 of the valve seat 213 and the first chamber 210 of the discharge muffler 200. 20 may be installed.

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

Abstract

The present invention relates to a hermetically-sealed compressor in which a member for reducing discharge pulsations is installed, and which includes: a case; a cylinder block disposed in the case; a discharge muffler in which a first chamber and a second chamber are formed so as to be spaced apart from each other in the upper portion of the cylinder block, in order to reduce the pulsations of a refrigerant which is discharged, wherein a connection passage is formed on the inner side between the first chamber and the second chamber; and a pulsation-reducing member inserted in and fixed to the connection passage, wherein a pulsation-reducing passage is formed on the circumferential surface thereof.

Description

토출 맥동저감부재가 장착된 밀폐형 압축기Hermetic compressor with discharge pulsation reducing member
본 발명은 압축기에 관한 것으로서, 더욱 상세하게는 작동 유체의 맥동 성분을 제어하여 압축기와 냉동 사이클의 진동 및 소음을 저감할 수 있는 토출 맥동저감부재가 장착된 밀폐형 압축기에 관한 것이다. The present invention relates to a compressor, and more particularly, to a hermetic compressor equipped with a discharge pulsation reducing member capable of controlling pulsation components of a working fluid to reduce vibration and noise of the compressor and a refrigeration cycle.
일반적으로 냉동 사이클은 압축기(compressor)의 작동에 의해 고온, 고압으로 압축된 냉매가스(refrigerant gas)를 응축기(condenser)에서 액화시킨 후에, 팽창밸브(expansion valve)를 통하여 증발기(evaporator)에서 기화시킴으로써 냉매의 기화열에 의해 냉각작용을 하는 장치이다.Generally, a refrigeration cycle is liquefied in a condenser of refrigerant gas, which has been compressed to a high temperature and a high pressure by the operation of a compressor, and then vaporized in an evaporator through an expansion valve. It is a device that cools by the vaporization heat of the refrigerant.
이와 같은 냉동 사이클의 구성 중에 압축기는, 증발기에서 액상의 냉매가 증발되면서 주위의 열을 빼앗아 냉각시킨 후 유입되는 기체 상태의 냉매를 고온, 고압으로 압축시키기 위한 것이다.During the configuration of such a refrigeration cycle, the compressor is for compressing the refrigerant in the gaseous state which is introduced after the liquid is evaporated in the evaporator to take away the surrounding heat and to cool the incoming gas at high temperature and high pressure.
그러나, 상기 압축기에서 응축기로 기체 상태의 냉매를 토출할 때 발생하는 맥동 성분이 냉동 사이클의 배관을 가진하며, 이는 냉동 사이클의 소음 및 진동의 주요 원인이기도 하다. However, the pulsation component generated when discharging the gaseous refrigerant from the compressor to the condenser has a piping of the refrigeration cycle, which is also a major cause of the noise and vibration of the refrigeration cycle.
상기와 같은 문제점을 해결하기 위해 압축기의 토출 유로에 소음을 감소시키기 위한 토출 머플러가 실린더 블록 상에 설치되어 있다.In order to solve the above problems, the discharge muffler for reducing the noise in the discharge passage of the compressor is provided on the cylinder block.
상기 토출 머플러는 압축기로부터 토출되는 냉매의 맥동을 감소시키기 위한 것으로, 제1챔버 및 제2챔버의 두 부분으로 분리되고, 상기 제1 및 제2챔버는 연결 유로를 통해 연결된다.The discharge muffler is to reduce pulsation of the refrigerant discharged from the compressor. The discharge muffler is divided into two parts, the first chamber and the second chamber, and the first and second chambers are connected through a connection flow path.
그리고, 상기 제1챔버는 실린더에서 나온 고압의 냉매를 전달받기 위한 공간을 가지는 실린더 커버와 유로를 통해 연결되고, 상기 제2챔버에는 토출파이프가 연결된다.The first chamber is connected through a cylinder cover and a flow path having a space for receiving a high-pressure refrigerant from the cylinder, and a discharge pipe is connected to the second chamber.
종래에는 이와 같이 구성된 토출 머플러를 통해 맥동 소음을 저감시켰으나, 제1챔버와 제2챔버를 연결하는 연결 유로를 주물 가공을 통해서만 구비할 경우 그 길이가 한정되어 맥동 저감 효과에 한계가 있었다. Conventionally, although the pulsation noise is reduced through the discharge muffler configured as described above, when the connecting flow path connecting the first chamber and the second chamber is provided only by casting, there is a limit in the pulsation reduction effect.
최근에는 이를 개선하기 위해 제1 챔버와 제2챔버를 소정의 내경과 길이를 가지는 파이프로 연결하여 냉매의 맥동 성분을 보다 저감시키는 기술들이 나와 있다. Recently, techniques for reducing the pulsation component of the refrigerant have been disclosed by connecting the first chamber and the second chamber with a pipe having a predetermined inner diameter and length to improve this.
하지만 이를 설치하기 위해서는 실린더 블록 외부로 노출되어, 외부 케이스의 내벽과 간섭될 우려가 있으므로 케이스 설계 시 이를 고려해야 하는데, 특히 파이프를 챔버 안에 수용할 경우 챔버는 파이프를 수용하기 위해 그 크기가 충분히 커져야 하므로 마찬가지로 실린더 블록의 크기도 커지게 된다. However, in order to install it, it is exposed to the outside of the cylinder block and may interfere with the inner wall of the outer case, so this should be considered when designing the case. Especially when the pipe is accommodated in the chamber, the chamber must be large enough to accommodate the pipe. Similarly, the cylinder block will be larger in size.
이로 인해, 압축기의 공간 활용성이 저하되는 동시에 생산성이 감소하는 문제점이 있었다.As a result, there is a problem in that the space utilization of the compressor is lowered and the productivity is decreased.
따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은, 제1챔버와 제2챔버를 연결하는 연결 유로를 실린더 블록 내측에 설치하고, 상기 연결 유로에 냉매의 유로를 증대시키기 위한 맥동저감부재를 설치하여 별도의 공간을 차지하지 않고 맥동을 저감시킬 수 있도록 하는 데 있다. Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to provide a connection flow path connecting the first chamber and the second chamber inside the cylinder block, the flow path of the refrigerant in the connection flow path It is to install a pulsation reducing member to increase the pulsation can be reduced without taking a separate space.
상기와 같은 목적을 달성하기 위하여 본 발명에 따른 토출 맥동저감부재가 장착된 밀폐형 압축기는, 케이스; 상기 케이스 내에 설치되는 실린더 블록; 상기 실린더 블록의 상부에, 토출되는 냉매의 맥동 성분을 저감할 수 있도록 제1챔버와 제2챔버가 분리되어 형성되고, 상기 제1챔버와 제2챔버 사이의 내측에 연결 유로가 형성된 토출 머플러; 및, 상기 연결 유로에 삽입되어 고정되며, 둘레면에 맥동저감유로가 형성된 맥동저감부재를 포함하여 구성된 것을 특징으로 한다.In order to achieve the above object, a hermetic compressor equipped with a discharge pulsation reducing member according to the present invention includes a case; A cylinder block installed in the case; A discharge muffler having a first chamber and a second chamber separated from each other so as to reduce a pulsation component of the discharged refrigerant, and a connection flow path formed inside the first chamber and the second chamber; And a pulsation reducing member which is inserted into and fixed to the connection passage and has a pulsation reducing passage formed on a circumferential surface thereof.
상기 맥동저감유로는 상기 연결유로와 함께 냉매의 경로를 형성하는 것을 특징으로 한다.The pulsation reduction channel is characterized in that the path of the refrigerant is formed together with the connection channel.
상기 맥동저감부재의 맥동저감유로는 나선형 형상으로 이루어진 것을 특징으로 한다.The pulsation reducing channel of the pulsation reducing member is characterized in that it is made of a spiral shape.
상기 맥동저감부재는, 대응하는 상기 연결 유로에 나사 결합되어 고정되는 것을 특징으로 한다.The pulsation reducing member is characterized in that is screwed and fixed to the corresponding connection passage.
상기 맥동저감부재는, 길이방향으로 테이퍼지게 형성되어 상기 연결 유로에 억지 끼움 방식으로 고정되는 것을 특징으로 한다.The pulsation reducing member is formed to be tapered in the longitudinal direction, it is characterized in that it is fixed to the connecting flow path by interference fit method.
상기 맥동저감부재는, 상기 연결 유로에 결합을 위한 공구를 사용할 수 있도록 머리부에 다양한 형태의 가공을 한 것을 특징으로 한다.The pulsation reducing member is characterized in that the processing of the head portion so as to use a tool for coupling to the connection passage.
상기 맥동저감부재의 단면은 원형, 다각형 형상 중 어느 하나로 이루어진 것을 특징으로 한다.Cross section of the pulsation reducing member is characterized in that consisting of any one of a circular, polygonal shape.
상기 맥동저감유로는 그 양단에 길이 방향으로 연통되는 입구단과 출구단이 형성된 것을 특징으로 한다.The pulsation reduction flow path is characterized in that the inlet end and the outlet end are communicated in the longitudinal direction at both ends.
전술한 바와 같은 구성의 본 발명에 따른 토출 맥동저감부재가 장착된 밀폐형 압축기에 의하면, 제1챔버와 제2챔버를 연결하는 연결 유로를 실린더 블록 내측에 설치하고, 상기 연결 유로에 냉매의 유로를 증대시키기 위한 맥동저감부재를 설치하여 냉매의 맥동 성분을 제어하여 냉동 사이클의 진동 및 소음을 저감시킬 수 있는 효과가 있다.According to the hermetic compressor equipped with the discharge pulsation reducing member according to the present invention having the above-described configuration, a connection flow path connecting the first chamber and the second chamber is provided inside the cylinder block, and a flow path of the refrigerant is provided in the connection flow path. By installing a pulsation reducing member to increase the pulsation component of the refrigerant to control the vibration and noise of the refrigeration cycle can be reduced.
또한, 상기 맥동저감부재를 실린더 블록 내의 연결 유로에 설치하게 되므로 별도의 설치 공간 필요없이 외부 케이스의 크기를 줄일 수 있어 압축기의 공간 활용성 및 생산성을 증대시킬 수 있는 효과가 있다.In addition, since the pulsation reducing member is installed in the connection passage in the cylinder block, the size of the outer case can be reduced without the need for a separate installation space, thereby increasing the space utilization and productivity of the compressor.
그리고, 압축기의 맥동 특성에 따라 상기 맥동저감부재의 맥동저감유로의 길이와 단면적을 변경하여 상황에 맞게 맥동 제어가 가능하다. In addition, the pulsation control can be performed according to the situation by changing the length and the cross-sectional area of the pulsation reducing passage of the pulsation reducing member according to the pulsation characteristics of the compressor.
도 1 및 도 2는 본 발명에 따른 맥동저감부재가 적용되는 밀폐형 압축기를 나타내는 절개 사시도 및 정면도이다.1 and 2 are a cutaway perspective view and a front view showing a hermetic compressor to which the pulsation reducing member according to the present invention is applied.
도 3은 본 발명에 따른 토출 맥동저감부재가 장착된 밀폐형 압축기를 나타내는 단면도이다. 3 is a cross-sectional view showing a hermetic compressor equipped with a discharge pulsation reducing member according to the present invention.
도 4는 도 3의 맥동저감부재의 일 실시예를 나타내는 사시도이다.4 is a perspective view showing an embodiment of the pulsation reducing member of FIG.
도 5 및 도 6은 본 발명에 따른 맥동저감부재의 다른 실시예를 나타내는 사시도이다. 5 and 6 are perspective views showing another embodiment of the pulsation reducing member according to the present invention.
도 7은 본 발명에 따른 실시예 및 비교예의 토출 맥동을 나타내는 그래프이다. 7 is a graph showing discharge pulsations in Examples and Comparative Examples according to the present invention.
이하, 도 1 내지 도 7을 참조하여 본 발명에 따른 실시예에 대해 상세하게 설명하면 다음과 같다. Hereinafter, an embodiment according to the present invention will be described in detail with reference to FIGS. 1 to 7.
도 1 및 도 2에 도시한 바와 같이, 본 발명에 따른 토출 맥동 저감형 압축기는 통상 냉장고의 기계실에 설치되고 응축기(미도시)와 연결되어 기체 상태의 냉매를 고압으로 압축한 후 상기 응축기에 공급하는 것으로, 케이스(1) 내에 실린더 블록(100)이 설치되고, 상기 실린더 블록(100)의 상부에 토출되는 냉매의 맥동 성분을 저감시키기 위한 토출 머플러(200)가 설치되어 있다. 1 and 2, the discharge pulsation reduction compressor according to the present invention is usually installed in the machine room of the refrigerator and connected to a condenser (not shown) to compress the gaseous refrigerant to high pressure and then supply it to the condenser. The cylinder block 100 is provided in the case 1, and the discharge muffler 200 for reducing the pulsation component of the refrigerant | coolant discharged in the upper part of the said cylinder block 100 is provided.
상기 토출 머플러(200)는 각각 제1챔버(210)와 제2챔버(220)가 분리되어 형성되고, 상기 제1챔버(210)와 제2챔버(220)는 토출 머플러(200)의 내측에 형성된 연결 유로(10)를 통해 연결된다.The discharge muffler 200 is formed by separating the first chamber 210 and the second chamber 220, respectively, and the first chamber 210 and the second chamber 220 are formed inside the discharge muffler 200. It is connected via the connection flow path 10 formed.
그리고, 상기 제1챔버(210)는 일측에 실린더에서 나온 고압의 냉매를 전달받기 위한 공간을 가지는 실린더 커버(211)와 유로(212)를 통해 연결되고, 상기 제2챔버(220)에는 토출파이프(221)가 연결된다.In addition, the first chamber 210 is connected to the cylinder cover 211 and the flow path 212 having a space for receiving a high-pressure refrigerant from the cylinder on one side, the discharge chamber is connected to the second chamber 220 221 is connected.
여기서, 상기 연결 유로(10)는 상기 제1챔버(210)와 제2챔버(220)를 연결하는 기능과 함께 냉매의 맥동 성분을 제어하기 위한 기능도 수행하게 된다.Here, the connection flow path 10 performs a function of controlling the pulsation component of the refrigerant along with a function of connecting the first chamber 210 and the second chamber 220.
즉, 상기 토출 머플러(200)로 유입되는 고온 고압의 냉매는 제1챔버(210)로 유입된 후 연결 유로(10)를 거쳐 제2챔버(220)에 전달되면서 냉매의 유속이 저감되며, 유속이 저감된 냉매는 토출파이프(221)를 통해 응축기로 공급된다.That is, the high temperature and high pressure refrigerant flowing into the discharge muffler 200 is introduced into the first chamber 210 and then transferred to the second chamber 220 through the connection flow path 10 to reduce the flow rate of the refrigerant. The reduced refrigerant is supplied to the condenser through the discharge pipe 221.
도 3에 도시한 바와 같이, 본 발명에 따른 실시예에서는, 상기 토출 머플러(200)의 크기 및 형상에 변화가 없는 범위에서 냉매의 맥동 성분, 즉 진동 및 소음이 감소하도록 상기 연결 유로(10)에 냉매의 유로를 증대시키기 위한 바(bar) 형상의 맥동저감부재(20)를 삽입되어 고정하게 된다.As shown in FIG. 3, in the embodiment according to the present invention, the connection flow path 10 to reduce pulsation components, ie, vibration and noise, of the refrigerant in a range in which there is no change in the size and shape of the discharge muffler 200. A bar-shaped pulsation reducing member 20 for increasing the flow path of the refrigerant is inserted into and fixed thereto.
도 4 내지 도 6에 도시한 바와 같이, 본 발명의 실시예에 따른 상기 맥동저감부재(20)는, 그 둘레면에 홈 형상의 맥동저감유로(21)가 형성되고, 상기 맥동저감유로(21)의 양단에 길이 방향으로 연통되는 입구단(22)과 출구단(23)이 형성되어 있다.4 to 6, in the pulsation reducing member 20 according to the embodiment of the present invention, a pulsation reducing passage 21 having a groove shape is formed on the circumferential surface thereof, and the pulsation reducing passage 21 is formed. The inlet end 22 and the outlet end 23 which communicate in the longitudinal direction at both ends are formed.
이와 같이 구성된 상기 맥동저감부재(20)를 상기 연결 유로(10)에 견고하게 고정하기 위하여, 맥동저감부재(20)의 둘레면에 나사산을 형성하고 이와 대응하는 연결 유로(10)에 체결 가능한 나사산을 형성하여 상호 나사 결합되거나, 길이방향으로 테이퍼지게 형성되어 상기 연결 유로(10)에 억지 끼움 방식으로 고정됨이 바람직하다.In order to securely fix the pulsation reducing member 20 configured as described above to the connection flow path 10, a thread is formed on the circumferential surface of the pulsation reduction member 20 and can be fastened to the corresponding connection flow path 10. Formed to form a mutually screwed together, or tapered in the longitudinal direction is preferably fixed to the connection flow path 10 by the interference fit method.
이에 따라, 상기 맥동저감유로(21)는 상기 연결유로(10)와 함께 냉매의 경로를 형성하게 된다.Accordingly, the pulsation reduction passage 21 forms a path of the refrigerant together with the connection passage 10.
상기 연결 유로(10)에 맥동저감부재(20)를 나사 결합 시, 상기 연결 유로(10)에 맥동저감부재(20)를 체결하기 위한 나사산의 위치와 길이는 가공 편의성에 따라 적절히 조절할 수 있는 것이 바람직하며, 결합을 위한 공구를 쉽게 사용할 수 있도록 머리부(24)는 그 형태를 다양하게 채택하는 것이 바람직하다. When screwing the pulsation reducing member 20 to the connection channel 10, the position and length of the thread for fastening the pulsation reducing member 20 to the connection channel 10 can be appropriately adjusted according to the processing convenience. Preferably, the head 24 preferably adopts a variety of forms so that a tool for engagement can be easily used.
더불어, 상기 맥동저감부재(20)의 단면은 원형뿐만 아니라, 다각형 형상으로 이루어져도 무방하다. In addition, the cross-section of the pulsation reducing member 20 may be formed in a polygonal shape as well as circular.
이와 같이 본 발명에 따른 토출 머플러(200)의 제1챔버(210)와 제2챔버(220)를 연결하는 연결 유로(10)의 둘레면에 맥동저감유로(21)가 형성된 맥동저감부재(20)를 설치함으로써, 상기 제1챔버(210)로 유입된 냉매가 상기 맥동저감부재(20)의 입구단(22)을 지나 맥동저감유로(21)를 통과한 다음, 출구단(23)으로 토출되어 제2챔버(220)로 전달된다. Thus, the pulsation reducing member 20 in which the pulsation reducing passage 21 is formed on the circumferential surface of the connecting passage 10 connecting the first chamber 210 and the second chamber 220 of the discharge muffler 200 according to the present invention. ), The refrigerant flowing into the first chamber 210 passes through the inlet end 22 of the pulsation reducing member 20, passes through the pulsation reducing passage 21, and then discharges to the outlet end 23. And is transferred to the second chamber 220.
즉, 상기 맥동저감부재(20)에 형성된 맥동저감유로(21)를 통해 그 연결 유로(10)의 통로 길이를 연장시킴으로써, 상기 연결 유로(10)를 통해 제1챔버(210)로부터 제2챔버(220)로 전달되는 냉매의 유속이 감소하게 되므로 압축기에서 발생하는 소음이나 진동을 현저하게 감소시킬 수 있게 되는 것이다. That is, by extending the passage length of the connection flow path 10 through the pulsation reduction flow path 21 formed in the pulsation reduction member 20, the second chamber from the first chamber 210 through the connection flow path 10. Since the flow rate of the refrigerant delivered to 220 is reduced, it is possible to significantly reduce noise or vibration generated in the compressor.
상기 맥동저감유로(21)는 맥동 성분에 맞는 맥동 제어가 가능하도록 그 길이와 단면적을 조절할 수 있도록 하는 것이 바람직한바, 상기 맥동저감유로(21)의 길이와 단면적은 맥동 성분을 제어하기 위한 주파수에 따라 적절히 조절할 수 있게 된다. The pulsation reduction flow passage 21 is preferably to be able to adjust the length and cross-sectional area to enable pulsation control according to the pulsation component, the length and cross-sectional area of the pulsation reduction flow passage 21 at a frequency for controlling the pulsation component It can be adjusted accordingly.
즉, 상기 맥동저감부재(20)에 형성된 맥동저감유로(21)는 그 길이를 조절하기 위하여 나선형 유로 등, 다양한 방식이 채택 가능하다. That is, the pulsation reduction passage 21 formed in the pulsation reduction member 20 may adopt various methods such as a spiral flow path to adjust the length thereof.
도 7은 본 발명에 따른 실시예 및 비교예의 토출 맥동을 나타내는 그래프로서, 본 발명의 실시예는 제1챔버(210)와 제2챔버(220) 사이의 연결 유로(10)에 맥동저감부재(20)가 설치된 상태에서 측정한 냉매의 주파수 대역을 나타내는 반면, 인용예는 맥동저감부재(20)가 설치되지 않은 상태에서 측정한 냉매의 주파수 대역을 나타낸다.7 is a graph showing the discharge pulsation of the embodiment and the comparative example according to the present invention, the embodiment of the present invention is a pulsation reducing member (a) in the connection passage 10 between the first chamber 210 and the second chamber 220 While the frequency band of the refrigerant measured in the state where 20) is installed is shown, the cited example shows the frequency band of the refrigerant measured in the state where the pulsation reducing member 20 is not installed.
도 7에 도시한 바와 같이, 100 내지 300Hz 사이의 주파수 대역에서의 저주파 성분이 맥동저감부재(20)를 설치함으로써 감소되었음을 알 수 있다.As shown in FIG. 7, it can be seen that the low frequency component in the frequency band between 100 and 300 Hz has been reduced by installing the pulsation reducing member 20.
한편, 본 발명에 따른 실시예에서, 상기 맥동저감부재(20)는 상기 제1챔버(210)와 제2챔버(220) 사이의 연결 유로(10)에 설치되나, 반드시 이에 한정되지 않으며, 맥동저감부재(20)가 설치되어 냉동 사이클의 진동 및 소음을 저감할 수 있는 위치라면 어떠한 위치에 설치되어도 무방하다. 예컨대, 실린더 블록(100)의 밸브 자리면(213)에 설치 공간이 충분할 경우 상기 밸브 자리면(213)과 토출 머플러(200)의 제1챔버(210)의 유로(212)에 상기 맥동저감부재(20)가 설치될 수도 있다.On the other hand, in the embodiment according to the present invention, the pulsation reducing member 20 is installed in the connecting flow path 10 between the first chamber 210 and the second chamber 220, but is not necessarily limited to this, pulsation If the reducing member 20 is installed to reduce the vibration and noise of the refrigeration cycle may be installed in any position. For example, when the installation space is sufficient in the valve seat 213 of the cylinder block 100, the pulsation reducing member is formed in the flow path 212 of the valve seat 213 and the first chamber 210 of the discharge muffler 200. 20 may be installed.

Claims (8)

  1. 케이스;case;
    상기 케이스 내에 설치되는 실린더 블록;A cylinder block installed in the case;
    상기 실린더 블록의 상부에, 토출되는 냉매의 맥동 성분을 저감할 수 있도록제1챔버와 제2챔버가 분리되어 형성되고, 상기 제1챔버와 제2챔버 사이의 내측에 연결 유로가 형성된 토출 머플러; 및,A discharge muffler formed in the upper portion of the cylinder block so as to reduce the pulsation component of the discharged refrigerant, the first chamber and the second chamber being separated, and a connection flow path formed inside the first chamber and the second chamber; And,
    상기 연결 유로에 삽입되어 고정되며, 둘레면에 맥동저감유로가 형성된 맥동저감부재를 포함하여 구성된 것을 특징으로 하는 토출 맥동저감부재가 장착된 밀폐형 압축기.And a pulsation reducing member inserted into and fixed to the connection passage, the pulsation reducing member having a pulsation reducing passage formed on a circumferential surface thereof.
  2. 제1항에 있어서,The method of claim 1,
    상기 맥동저감유로는 상기 연결유로와 함께 냉매의 경로를 형성하는 것을 특징으로 하는 토출 맥동저감부재가 장착된 밀폐형 압축기.The pulsation reducing channel is a hermetic compressor equipped with a discharge pulsation reducing member, characterized in that to form a path of the refrigerant together with the connection channel.
  3. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    상기 맥동저감부재의 맥동저감유로는 나선형 형상으로 이루어진 것을 특징으로 하는 토출 맥동저감부재가 장착된 밀폐형 압축기.The pulsation reducing flow path of the pulsation reducing member is a hermetic compressor equipped with a discharge pulsation reducing member, characterized in that formed in a spiral shape.
  4. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    상기 맥동저감부재는, 대응하는 상기 연결 유로에 나사 결합되어 고정되는 것을 특징으로 하는 토출 맥동저감부재가 장착된 밀폐형 압축기.The pulsation reducing member is a hermetic compressor equipped with a discharge pulsation reducing member, characterized in that the screw is fixed to the corresponding connection passage.
  5. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    상기 맥동저감부재는, 길이방향으로 테이퍼지게 형성되어 상기 연결 유로에 억지 끼움 방식으로 고정되는 것을 특징으로 하는 토출 맥동저감부재가 장착된 밀폐형 압축기.The pulsation reducing member is tapered in the longitudinal direction is sealed compressor equipped with a discharge pulsation reducing member, characterized in that fixed to the connecting flow path by the interference fit method.
  6. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    상기 맥동저감부재는, 상기 연결 유로에 결합을 위한 공구를 사용할 수 있도록 머리부에 다양한 형태의 가공을 한 것을 특징으로 하는 토출 맥동저감부재가 장착된 밀폐형 압축기.The pulsation reducing member is a hermetic compressor equipped with a discharge pulsation reducing member, characterized in that the processing in the head portion so as to use a tool for coupling to the connection passage.
  7. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    상기 맥동저감부재의 단면은 원형, 다각형 형상 중 어느 하나로 이루어진 것을 특징으로 하는 토출 맥동저감부재가 장착된 밀폐형 압축기.The cross-section of the pulsation reducing member is a hermetic compressor equipped with a discharge pulsation reducing member, characterized in that consisting of any one of a circular, polygonal shape.
  8. 제3항에 있어서,The method of claim 3,
    상기 맥동저감유로는 그 양단에 길이 방향으로 연통되는 입구단과 출구단이 형성된 것을 특징으로 하는 토출 맥동저감부재가 장착된 밀폐형 압축기.The pulsation reducing flow passage is a hermetic compressor equipped with a discharge pulsation reducing member, characterized in that the inlet end and the outlet end is formed in communication with both ends in the longitudinal direction.
PCT/KR2013/004416 2012-05-21 2013-05-21 Hermetically-sealed compressor in which member for reducing discharge pulsations is installed WO2013176448A1 (en)

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CN201380001426.2A CN104471247A (en) 2012-05-21 2013-05-21 Hermetically-sealed compressor in which member for reducing discharge pulsations is installed
US14/116,756 US20140377107A1 (en) 2012-05-21 2013-05-21 Hermetic compressor with discharge pulsation reducing member mounted thereon
EP13793942.7A EP2716911A4 (en) 2012-05-21 2013-05-21 Hermetically-sealed compressor in which member for reducing discharge pulsations is installed

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KR10-2012-0053915 2012-05-21
KR1020120053915A KR20130129790A (en) 2012-05-21 2012-05-21 Compressor mounted with discharging pulsation damping part

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KR101543660B1 (en) 2013-12-24 2015-08-11 동부대우전자 주식회사 Compressor and valve assembly for reducing pulsation thereof
CN105332898B (en) * 2015-11-13 2017-07-28 珠海格力节能环保制冷技术研究中心有限公司 Piston compressor and refrigerating plant

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US20140377107A1 (en) 2014-12-25
CN104471247A (en) 2015-03-25

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