KR20010063936A - Structure for reducing noise hermetic rotary compressor - Google Patents
Structure for reducing noise hermetic rotary compressor Download PDFInfo
- Publication number
- KR20010063936A KR20010063936A KR1019990062043A KR19990062043A KR20010063936A KR 20010063936 A KR20010063936 A KR 20010063936A KR 1019990062043 A KR1019990062043 A KR 1019990062043A KR 19990062043 A KR19990062043 A KR 19990062043A KR 20010063936 A KR20010063936 A KR 20010063936A
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- Prior art keywords
- refrigerant gas
- bearing
- discharged
- discharge
- rotary compressor
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Classifications
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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
- 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
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/068—Silencing the silencing means being arranged inside the pump housing
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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
- 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
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
Abstract
Description
본 발명은 밀폐형 회전식 압축기에 관한 것으로, 특히 실린더에서 냉매 가스가 압축되고 토출되는 과정에서 발생되는 압력 맥동 소음을 최소화할 수 있도록 한 밀폐형 회전식 압축기의 소음 저감구조에 관한 것이다.The present invention relates to a hermetic rotary compressor, and more particularly, to a noise reduction structure of a hermetic rotary compressor to minimize pressure pulsation noise generated in a process in which refrigerant gas is compressed and discharged from a cylinder.
도 1a, 1b는 일반적인 밀폐형 회전식 압축기의 일례를 도시한 것으로, 이에 도시한 바와 같이, 밀폐형 회전식 압축기는 소정의 내부 공간을 갖도록 형성된 밀폐용기(1)와 상기 밀폐용기(1)내부에 장착되어 구동력을 발생시키는 전동기구부와 상기 전동기구부의 구동력을 전달받아 가스를 압축하는 압축기구부를 포함하여 구성된다.1A and 1B illustrate an example of a general hermetic rotary compressor, and as shown in FIG. 1, the hermetic rotary compressor is mounted inside the hermetic container 1 and the hermetic container 1 formed to have a predetermined internal space, and has a driving force. And a compressor mechanism for compressing the gas by receiving the driving force of the power mechanism and generating the power mechanism.
상기 전동기구부는 밀폐용기(1)의 내주면에 고정 결합되는 고정자(2)와 상기 고정자(2)의 내부에 회전 가능하도록 삽입되는 회전자(3)로 구성된다.The electric mechanism part is composed of a stator 2 fixedly coupled to the inner circumferential surface of the hermetic container 1 and a rotor 3 rotatably inserted into the stator 2.
상기 압축기구부는 편심부(4a)가 구비되어 상기 회전자(3)의 내경에 압입되는 회전축(4)과, 가스가 흡입되고 압축되는 내부 공간(P)이 구비되어 밀폐용기(1)의 내부에 설치됨과 아울러 그 내부 공간(P)에 상기 회전축의 편심부(4a)가 삽입되는 실린더(5)와, 상기 실린더의 내부 공간(P)을 밀폐시키도록 실린더(5)의 상,하부에 체결수단(6)에 의해 각각 결합됨과 아울러 상기 회전축(4)을 지지하는 상,하부 베어링(7)(8)과, 상기 회전축의 편심부(4a)에 삽입되어 상기 실린더(5)의 내부 공간(P)내에 위치하여 회전축(4)의 회전에 따라 공전하는 롤링 피스톤(9)과, 상기실린더(5)의 일측에 반경 방향으로 직선운동 가능하도록 삽입됨과 아울러 그 단부가 상기 롤링 피스톤(9)의 외주면과 선 접촉되어 실린더(5)의 내부 공간 내주면과 롤링 피스톤(9)의 외주면에 의해 형성되는 공간을 흡입영역(a)과 압축영역(b)으로 변환시키는 베인(10)을 포함하여 구성된다.The compression mechanism is provided with an eccentric portion (4a) is provided with a rotating shaft (4) is pressed into the inner diameter of the rotor (3), and the inner space (P) through which the gas is sucked and compressed is provided inside the sealed container (1) And the cylinder 5 into which the eccentric portion 4a of the rotation shaft is inserted into the inner space P and the upper and lower portions of the cylinder 5 to seal the inner space P of the cylinder. The inner space of the cylinder (5) is inserted into the upper and lower bearings (7) (8) and the eccentric portion (4a) of the rotary shaft, which are coupled to each other by the means (6) and support the rotary shaft (4). A rolling piston 9 located in P) and revolving in accordance with the rotation of the rotary shaft 4 and inserted into one side of the cylinder 5 so as to be linearly movable in a radial direction, and an end of the rolling piston 9 In line contact with the outer circumferential surface formed by the inner circumferential surface of the inner space of the cylinder 5 and the outer circumferential surface of the rolling piston 9 It is configured to include a vane (10) for converting between a suction region (a) and compression region (b).
그리고 상기 실린더(5)에 가스가 흡입되는 흡입구(5a)가 베인(10)의 측부에 위치하도록 형성되고 그 베인(10)의 타측에 압축영역(b)에서 압축된 가스가 토출되는 토출포트(5b)가 형성된다. 상기 실린더(5)의 상,하부에 각각 결합되는 상부 베어링(7) 또는 하부 베어링(8)에 상기 토출포트(5b)와 연통되도록 토출공(7a)이 형성된다(도면에는 상부 베어링에 표시하였으며 이하에서 상부 베어링에 표시된 상태로 설명함). 상기 밀폐용기(1)에 가스가 흡입되고 토출되는 흡입관(11) 및 토출관(12)이 각각 결합되며 그 밀폐용기(1) 저면에 오일이 채워져 있다.In addition, the inlet port 5a through which the gas is sucked into the cylinder 5 is positioned at the side of the vane 10, and a discharge port through which the compressed gas is discharged from the compression zone b on the other side of the vane 10. 5b) is formed. Discharge holes 7a are formed in the upper bearing 7 or the lower bearing 8 coupled to the upper and lower portions of the cylinder 5 so as to communicate with the discharge port 5b (shown in the upper bearing in the drawing). Described below in the state indicated on the upper bearing). The suction tube 11 and the discharge tube 12 into which the gas is sucked and discharged are respectively coupled to the sealed container 1, and oil is filled in the bottom surface of the sealed container 1.
그리고 상기 상부 베어링의 상면에 토출공(7a)을 개폐하는 토출밸브(13)가 결합되고 상기 토출밸브(13)에 이어 토출밸브(13)의 움직임을 한정하는 리테이너(14)가 장착되며 상기 토출밸브(13)와 리테이너(14)가 결합된 상부 베어링(7)에 토출가스의 맥동 소음 및 토출밸브(13)의 작동음을 저감시키기 위하여 소음기(20)가 결합된다.A discharge valve 13 for opening and closing the discharge hole 7a is coupled to an upper surface of the upper bearing, and a retainer 14 is mounted to limit the movement of the discharge valve 13 after the discharge valve 13. The silencer 20 is coupled to the upper bearing 7 to which the valve 13 and the retainer 14 are coupled to reduce the pulsation noise of the discharge gas and the operation sound of the discharge valve 13.
상기한 바와 같은 밀폐형 회전식 압축기의 작동은 다음과 같다.Operation of the hermetic rotary compressor as described above is as follows.
먼저, 인가되는 전원에 의해 전동기구부를 구성하는 회전자(3)가 회전하면서 회전축(4)을 회전시키게 되면 상기 회전축(4)의 회전에 의해 회전축의 편심부(4a)에 결합된 롤링 피스톤(9)이 베인(10)과 접촉된 상태에서 실린더 내부 공간(P)에서 축 중심을 기준으로 공전하게 된다. 상기 롤링 피스톤(9)의 공전 회전에 의한 실린더내부 공간(P)의 내주면과 롤링 피스톤(9)사이의 공간부 체적변화로 저온저압의 냉매가스가 흡입관(11)과 흡입구(5b)를 통해 실린더 내부 공간(P)으로 흡입되어 고온고압의 상태로 압축되며 그 압축된 냉매가스는 토출밸브(13)의 작동과 함께 토출포트(5a) 및 토출공(7a)을 통해 소음기(20)내부로 토출된다. 상기 소음기(20)내부로 토출된 냉매 가스는 소음기(20)를 거쳐 밀폐용기(1)내로 배출되며 그 밀폐용기(1)내로 배출된 냉매 가스는 토출관(12)을 통해 밀폐용기(1)외부로 토출된다.First, when the rotating shaft 4 rotates while the rotor 3 constituting the electric mechanism is rotated by an applied power source, a rolling piston coupled to the eccentric portion 4a of the rotating shaft by the rotation of the rotating shaft 4 In the state where 9) is in contact with the vane 10, it is orbiting about the axis center in the cylinder internal space P. The low-temperature low-pressure refrigerant gas flows through the suction pipe 11 and the suction port 5b by the volume change of the space portion between the inner circumferential surface of the cylinder inner space P and the rolling piston 9 due to the revolution of the rolling piston 9. It is sucked into the internal space P and compressed to a state of high temperature and high pressure, and the compressed refrigerant gas is discharged into the silencer 20 through the discharge port 5a and the discharge hole 7a together with the operation of the discharge valve 13. do. The refrigerant gas discharged into the silencer 20 is discharged into the sealed container 1 through the silencer 20, and the refrigerant gas discharged into the sealed container 1 is discharged through the discharge tube 12. It is discharged to the outside.
그러나 상기한 바와 같은 구조에서, 실린더(5)에서 압축된 냉매 가스가 토출밸브(13)를 통해 토출되면서 냉매 가스의 압력 맥동에 의한 소음을 발생시키게 되며, 이와 같은 압력 맥동에 의한 소음은, 도 2a, 2b에 도시한 바와 같이, 소음기(20)를 거치면서 밀폐용기(1)내로 토출되지만 소음기(20)의 음압 감소 효과가 적어 압축기의 운전과정에서 소음을 유발시키게 되는 문제점이 있었다.However, in the structure as described above, the refrigerant gas compressed in the cylinder (5) is discharged through the discharge valve 13 to generate noise due to the pressure pulsation of the refrigerant gas, the noise due to such pressure pulsation, As shown in 2a, 2b, while being discharged into the closed container 1 while passing through the silencer 20, there is a problem that causes a noise in the operation process of the compressor because the sound pressure reduction effect of the silencer 20 is less.
상기한 바와 같은 문제점을 감안하여 안출한 본 발명의 목적은 실린더내부에서 압축된 고온 고압상태의 냉매 가스가 밀폐용기내부로 토출되는 과정에서 발생되는 압력 맥동에 의한 소음을 최소화할 수 있도록 한 밀폐형 회전식 압축기의 소음 저감 구조를 제공함에 있다.An object of the present invention devised in view of the above problems is a hermetic rotary type to minimize noise caused by pressure pulsation generated in the process of discharging the refrigerant gas of high temperature and high pressure state compressed in the cylinder into the sealed container. To provide a noise reduction structure of the compressor.
도 1a,1b는 일반적인 밀폐형 회전식 압축기를 도시한 정단면도 및 평단면도,1a, 1b is a front cross-sectional view and a planar cross-sectional view showing a general hermetic rotary compressor,
도 2a,2b는 종래 밀폐형 회전식 압축기의 소음 저감구조를 도시한 평면도 및 정단면도,Figure 2a, 2b is a plan view and a front sectional view showing a noise reduction structure of a conventional hermetic rotary compressor,
도 3a,3b,3c는 본 발명의 밀폐형 회전식 압축기 소음 저감구조를 도시한 평면도 및 정단면도,3a, 3b, 3c is a plan view and a front sectional view showing a closed rotary compressor noise reduction structure of the present invention;
도 4는 본 발명의 밀폐형 회전식 압축기 소음 저감구조의 작용상태를 도시한 평면도,4 is a plan view showing an operating state of the closed rotary compressor noise reduction structure of the present invention,
도 5a,5b는 밀폐형 회전식 압축기에서 나타나는 소음 발생 상태를 도시한 평면도.5A and 5B are plan views illustrating noise generation states in a closed rotary compressor.
(도면의 주요부분에 대한 부호의 설명)(Explanation of symbols on the main parts of drawing
4 ; 회전축 5 ; 실린더4 ; Axis of rotation 5; cylinder
30 ; 베어링 35 ; 냉매 가스 유로30; Bearing 35; Refrigerant gas flow path
40 ; 소음기 V ; 밸브시스템40; Silencer V; Valve system
F ; 토출유로F; Discharge flow path
상기한 바와 같은 본 발명의 목적을 달성하기 위하여 냉매가스가 압축되는 실린더에 복개 결합됨과 아울러 관통 삽입되는 회전축을 지지하는 베어링에 실린더에서 압축된 냉매 가스가 토출하도록 개폐되는 밸브시스템이 장착되고 상기 밸브시스템에서 토출된 냉매 가스가 베어링의 가운데 측으로 유동하도록 상기 베어링에 냉매 가스 유로가 형성되며 상기 베어링에 냉매 가스 유로를 복개하도록 소음기가 결합되어 상기 냉매 가스 유로를 통해 유동하는 냉매 가스가 소음기의 가운데로 토출되도록 소음기와 베어링에 의해 토출유로가 형성된 것을 특징으로 하는 밀폐형 회전식 압축기의 소음 저감구조가 제공된다.In order to achieve the object of the present invention as described above, the valve system is coupled to the cylinder to which the refrigerant gas is compressed, and the valve system is opened and closed to discharge the refrigerant gas compressed from the cylinder to a bearing supporting the rotating shaft inserted therethrough. A refrigerant gas flow path is formed in the bearing so that the refrigerant gas discharged from the system flows toward the center side of the bearing, and a silencer is coupled to cover the refrigerant gas flow path in the bearing so that the refrigerant gas flowing through the refrigerant gas flow path is in the middle of the silencer. The noise reduction structure of the hermetic rotary compressor is provided by the silencer and the bearing so as to discharge.
이하, 본 발명의 밀폐형 회전식 압축기 소음 저감구조를 첨부도면에 도시한 실시예에 따라 설명하면 다음과 같다.Hereinafter, the sealed rotary compressor noise reduction structure of the present invention will be described according to the embodiment shown in the accompanying drawings.
도 3a, 3b, 3c는 본 발명의 밀폐형 회전식 압축기 소음 저감구조의 일실시례를 도시한 것으로, 이를 참조하여 설명하면, 먼저 냉매 가스가 흡입되고 압축되는 실린더(5)에 베어링(30)이 결합되며 그 베어링(30)은 내부에 축이 관통 삽입되어 지지되는 축지지부(31)와 상기 축지지부(31)에 수직으로 소정의 면적을 갖도록 형성되어 상기 실린더(5)를 복개하도록 결합되는 평면 복개부(32)를 구비하여 이루어진다. 상기 평면 복개부(32)는 원형 형태로 형성되며 상기 축지지부(31)는 평면 복개부(32)의 가운데에 위치하게 된다. 그리고 상기 베어링(30)의 평면 복개부(32)에 실린더(5)에서 압축된 냉매 가스가 토출되는 밸브시스템(V)이 장착되며 그 밸브시스템(V)은 토출밸브(13) 및 리테이너(14)를 포함하여 구성된다. 상기 토출밸브(13)와 리테이너(14)로 구성되는 밸브시스템(V)은 베어링 평면 복개부(32)의 일측면에 음각지도록 형성된 밸브장착부(33)에 장착되며 상기 토출밸브(13)는 베어링의 평면 복개부(32)에 실린더(5)의 내부 공간(P)과 연통되도록 형성된 토출공(34)을 개폐하게 된다.3A, 3B, and 3C illustrate an embodiment of the closed rotary compressor noise reduction structure of the present invention. Referring to this, first, the bearing 30 is coupled to a cylinder 5 into which refrigerant gas is sucked and compressed. The bearing 30 is formed to have a predetermined area perpendicular to the shaft support portion 31 and the shaft support portion 31 is supported through the shaft is inserted into the planar cover coupled to cover the cylinder (5) The part 32 is provided. The planar cover part 32 is formed in a circular shape, and the shaft support part 31 is positioned at the center of the planar cover part 32. And the valve system (V) for discharging the refrigerant gas compressed from the cylinder (5) is mounted on the flat cover 32 of the bearing (30), the valve system (V) is discharge valve 13 and retainer (14) It is configured to include). The valve system (V) consisting of the discharge valve (13) and the retainer (14) is mounted to a valve mounting portion (33) formed so as to be engraved on one side of the bearing flat cover (32), and the discharge valve (13) is a bearing. Opening and closing the discharge hole 34 formed to communicate with the inner space (P) of the cylinder (5) in the planar cover portion 32 of.
그리고 상기 베어링의 평면 복개부(32)에 상기 밸브시스템(V)에서 토출된 냉매 가스가 베어링(30)의 가운데 측, 즉 축지지부(31) 측으로 유동하도록 냉매 가스 유로(35)가 형성되며 상기 베어링(30)의 평면 복개부(32)에 냉매 가스 유로(35)를 복개하도록 소음기(40)가 결합된다. 상기 베어링 평면 복개부(32)에 형성되는 냉매 가스 유로(35)는 베어링(30)의 가운데, 즉 축지지부(31)를 감싸면서 상기 밸브시스템(V)과 축지지부(31)측을 연결하는 곡선 형태의 개구홈으로 형성됨이 바람직하다. 즉 개구홈은 그 단면이 일측이 개구된 사각 형태로 형성되며 그 다른 형태로 일측이 개구되도록 단면이 반원 형태로 형성될 수 있다.The refrigerant gas flow path 35 is formed in the planar cover 32 of the bearing such that the refrigerant gas discharged from the valve system V flows toward the center of the bearing 30, that is, the shaft support part 31. The silencer 40 is coupled to cover the refrigerant gas flow path 35 to the planar cover 32 of the bearing 30. The refrigerant gas flow path 35 formed in the bearing flat cover 32 connects the valve system V and the shaft support 31 to the center of the bearing 30, that is, the shaft support 31. It is preferable to form a curved opening groove. That is, the opening groove may be formed in a semicircular shape so that the cross section is formed in a square shape with one side opened and the other side is opened in the other shape.
상기 베어링(30)에 냉매 가스 유로(35)를 복개하도록 소음기(40)가 결합된다. 상기 소음기(40)는 가운데 상기 축지지부(31)의 외경보다 크게 관통구멍(41)이 형성되어 이루어지며 그 소음기(40)는 관통구멍(41)이 상기 베어링(30)의 축지지부(31)에 관통 삽입되도록 함과 동시에 베어링(30)의 평면 복개부(32)에 형성되는 냉매 가스 유로(35)를 복개하도록 결합된다. 상기 베어링(30)에 결합되는 소음기(40)는 관통구멍(41)의 내주면과 베어링 축지지부(31) 외주면사이의 틈새에 의해 토출유로(F)가 형성된다.A silencer 40 is coupled to the bearing 30 to cover the refrigerant gas flow path 35. The silencer 40 has a through hole 41 formed larger than an outer diameter of the shaft support part 31 in the middle thereof, and the silencer 40 has a through hole 41 in the shaft support part 31 of the bearing 30. It is coupled to cover the refrigerant gas flow path 35 formed in the planar cover 32 of the bearing 30 at the same time so as to penetrate through. The silencer 40 coupled to the bearing 30 has a discharge passage F formed by a gap between the inner circumferential surface of the through hole 41 and the outer circumferential surface of the bearing shaft support portion 31.
이하, 본 발명의 밀폐형 회전식 압축기 소음 저감구조의 작용효과를 설명하면 다음과 같다.Hereinafter, the operational effects of the closed rotary compressor noise reduction structure of the present invention will be described.
먼저, 전동기구부의 구동력이 회전축(4)에 전달되어 회전축의 편심부(4a)에 결합된 롤링 피스톤(9)이 실린더(5) 내부 공간을 편심 회전하면서 냉매 가스가 흡입되고 압축됨과 동시에 밸브시스템(V)의 작동에 의해 압축된 가스를 지속적으로 토출시키게 된다. 상기 밸브시스템(V)을 통해 토출된 고온 고압 상태의 냉매 가스는 냉매 가스 유로(35) 및 소음기(40)의 내부 공간을 거치면서 소음기(40)의 관통구멍(41) 내주면과 베어링(30)의 축지지부(31)의 외주면에 의해 형성되는 토출유로(F)를 통해 토출된다.First, the driving force of the transmission mechanism is transmitted to the rotating shaft 4, the rolling piston 9 coupled to the eccentric portion 4a of the rotating shaft eccentrically rotates the inner space of the cylinder 5 while the refrigerant gas is sucked and compressed and at the same time the valve system By the operation of (V), the compressed gas is continuously discharged. The refrigerant gas discharged through the valve system (V) at high temperature and high pressure passes through the internal space of the refrigerant gas flow path 35 and the silencer 40, and the inner circumferential surface of the through hole 41 of the silencer 40 and the bearing 30. Is discharged through the discharge passage F formed by the outer circumferential surface of the shaft support portion 31 of the pump.
한편, 상기 밸브시스템(V)의 작동과 함께 냉매 가스가 토출되면서 발생되는 압력 맥동은, 도 4에 도시한 바와 같이, 냉매 가스와 함께 냉매 가스 유로(35) 및 소음기(40)의 내부 공간을 거치고 이어 토출유로(F)를 통하는 과정에서 음압이 감소됨에 의해 압력 맥동이 저하된다. 또한, 소음기(40) 내부 공간을 거친 냉매 가스가 소음기(40)의 중간부분에 위치하는 토출유로(F)를 통해 밀폐용기(1)내로 토출되므로 밀폐용기(1)의 공명 소음도 저감된다. 도 5a, 5b는 밀폐용기(1) 캐비티 모드(Cavity Mode)의 Nodal Line을 도시한 것으로 소음기(40)의 냉매 가스 토출유로는 Nodal Line에 위치시키는 것이 가장 유리하나 도면에 도시된 바와 같이 항상 두개의 모드가 비슷한 주파수에 존재하기 때문에 현실적으로 두개 모드의 Nodal Line에 냉매 가스 토출유로를 위치시키는 것이 불가능하므로 현실적으로 음압이 낮은 중앙부위로 토출유로를 위치시키게 됨으로써 소음을 최소화할 수 있게 된다.On the other hand, the pressure pulsation generated when the refrigerant gas is discharged together with the operation of the valve system (V), as shown in Figure 4, the refrigerant gas flow path 35 and the silencer 40 together with the refrigerant gas The pressure pulsation is lowered by decreasing the negative pressure in the course of passing through the discharge passage F. In addition, since the refrigerant gas passing through the inner space of the silencer 40 is discharged into the sealed container 1 through the discharge passage F located in the middle of the silencer 40, the resonance noise of the sealed container 1 is also reduced. 5A and 5B illustrate the Nodal Line of the Cavity Mode of the closed container 1. The refrigerant gas discharge flow path of the silencer 40 is most advantageously located in the Nodal Line, but as shown in the drawings, it is always two. Since the mode of is at similar frequency, it is impossible to locate the refrigerant gas discharge channel in the Nodal Line of two modes. Therefore, the noise can be minimized by placing the discharge channel in the central part where sound pressure is low.
이상에서 설명한 바와 같이, 본 발명에 의한 밀폐형 회전식 압축기의 소음 저감구조는 냉매 가스가 실린더에서 지속적으로 압축되어 토출되면서 발생되는 압력 맥동이 긴 토출경로인 냉매 가스 유로를 거치는 과정에서 압력 맥동이 저하됨으로써 압력맥동에 의한 진동 소음이 감소되고 아울러 냉매 가스가 소음기의 중앙부위로 토출됨으로써 밀폐용기내부의 공명 소음이 감소되어 압축기의 신뢰성을 높일 수 있는 효과가 있다.As described above, the noise reduction structure of the hermetic rotary compressor according to the present invention is reduced by the pressure pulsation in the process of passing through the refrigerant gas flow path is a long discharge path of the pressure pulsation generated when the refrigerant gas is continuously compressed and discharged from the cylinder The vibration noise caused by the pressure pulsation is reduced and the refrigerant gas is discharged to the center of the silencer, thereby reducing the resonance noise inside the sealed container, thereby increasing the reliability of the compressor.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111315993A (en) * | 2017-11-09 | 2020-06-19 | 三星电子株式会社 | Compressor with a compressor housing having a plurality of compressor blades |
| US11598338B2 (en) | 2017-11-09 | 2023-03-07 | Samsung Electronics Co., Ltd. | Compressor |
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