KR19990065985A - Discharge Noise Reduction Structure of Hermetic Rotary Compressor - Google Patents
Discharge Noise Reduction Structure of Hermetic Rotary Compressor Download PDFInfo
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- KR19990065985A KR19990065985A KR1019980001561A KR19980001561A KR19990065985A KR 19990065985 A KR19990065985 A KR 19990065985A KR 1019980001561 A KR1019980001561 A KR 1019980001561A KR 19980001561 A KR19980001561 A KR 19980001561A KR 19990065985 A KR19990065985 A KR 19990065985A
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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
- 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
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
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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
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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
- F04C2240/00—Components
- F04C2240/50—Bearings
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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
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/805—Fastening means, e.g. bolts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
본 발명은 밀폐형 회전식 압축기의 토출소음 저감구조에 관한 것으로, 종래에는 실린더의 압축공간내에서 압축된 냉매가스가 토출구멍과 토출밸브를 통해 소음기내로 토출되는 과정에서 발생되는 토출소음을 충분히 저감시키지 못하는 문제점이 있었는 바, 본 발명은 실린더와 결합되는 베어링의 상면에 토출구멍 둘레로 소정의 형상으로 음각진 완충홈을 형성하고, 상기 완충홈의 일측에 소정의 내부 체적을 갖는 공명홈을 형성하며, 상기 베어링의 상면에 상기 공명홈을 복개하여 공명기를 이루도록 덮개부재를 결합하여 실린더의 압축공간내에서 압축된 냉매가스의 토출작용을 원활할 뿐만 아니라 토출소음 발생을 최소화함으로써 압축기의 신뢰성을 향상시킬 수 있도록 한 것이다.The present invention relates to a discharge noise reduction structure of a hermetic rotary compressor, and conventionally does not sufficiently reduce the discharge noise generated in the process of discharging the refrigerant gas compressed in the compression space of the cylinder into the silencer through the discharge hole and the discharge valve. There is a problem, the present invention forms an indented buffer groove in a predetermined shape around the discharge hole on the upper surface of the bearing coupled to the cylinder, and to form a resonance groove having a predetermined internal volume on one side of the buffer groove, The cover member is coupled to the upper surface of the bearing to form a resonator to smoothly discharge the refrigerant gas compressed in the compression space of the cylinder, and to minimize the discharge noise, thereby improving the reliability of the compressor. It would be.
Description
본 발명은 밀폐형 회전식 압축기에 관한 것으로, 특히 실린더내에서 냉매가스를 압축하여 토출시키면서 발생되는 소음을 저감시킬 수 있도록 한 밀폐형 회전식 압축기의 토출소음 저감구조에 관한 것이다.The present invention relates to a hermetic rotary compressor, and more particularly, to a structure of reducing noise of a hermetic rotary compressor which can reduce noise generated by compressing and discharging refrigerant gas in a cylinder.
일반적인 밀폐형 회전식 압축기는, 도 1에 도시한 바와 같이, 소정의 내부체적을 갖는 밀폐용기(1)가 있고, 이 밀폐용기(1)의 내부에는 고정자(2)와 회전자(3) 등으로 구성되는 전동기구부가 설치되어 있으며, 상기 회전자(3)의 내경에 압입되며 하부에 편심부(4a)가 형성된 회전축(4)과 상기 회전축(4)의 편심부(4a)를 감싸며 상부베어링(5) 및 하부베어링(6)과 함께 볼트(7)에 의해 결합되어 있는 실린더(8)와 상기 회전축(4)의 편심부(4a)에 삽입되어 실린더(8)의 내경을 접하면서 자전 및 공전하는 롤링피스톤(9)과 상기 롤링피스톤(9)의 외주면과 슬라이딩 접촉되면서 실린더(8)내부를 고압부와 저압부로 분리하며 직선운동하는 베인(미도시) 등으로 구성되는 압축기구부가 설치되어 있다.As shown in FIG. 1, a general hermetic rotary compressor includes a hermetically sealed container 1 having a predetermined internal volume. The hermetic container 1 includes a stator 2, a rotor 3, and the like. The electric mechanism unit is installed, and is pressed into the inner diameter of the rotor (3) and wrap the eccentric portion (4a) of the rotary shaft (4a) and the rotary shaft (4) formed with an eccentric portion (4a) in the lower upper bearing (5) And the lower bearing 6 are inserted into the cylinder 8 coupled by the bolt 7 and the eccentric portion 4a of the rotating shaft 4 to rotate and revolve while contacting the inner diameter of the cylinder 8. Compressor mechanisms comprising a rolling piston 9 and vanes (not shown) which linearly move and separate the inside of the cylinder 8 into a high pressure part and a low pressure part while sliding contact with the outer circumferential surface of the rolling piston 9 are provided.
그리고 베인에 의해 고압부를 이루는 실린더(8)의 일측에 압축된 냉매가스를 토출할 수 있는 토출포트(8a)가 형성되어 있고 상기 상부베어링(5)의 일측에 상기 토출포트(8a)와 연통되게 토출구멍(5a)이 형성되어 있다. 또한 상기 상부베어링의 상면에는 일정압 이상이 되면 상기 토출구멍(5a)을 오픈시키는 토출밸브(10) 및 이 토출밸브(10)의 열림 상태를 한정,지지하는 리테이너(11)가 함께 결합되어 있다.In addition, a discharge port 8a capable of discharging the compressed refrigerant gas is formed at one side of the cylinder 8 constituting the high pressure part by vanes, and at one side of the upper bearing 5 to communicate with the discharge port 8a. The discharge hole 5a is formed. In addition, the upper surface of the upper bearing is coupled to the discharge valve 10 for opening the discharge hole (5a) when a predetermined pressure or more and the retainer 11 for limiting and supporting the open state of the discharge valve (10) together. .
그리고 상기 상부베어링(5)의 상부에는 토출가스의 토출 소음을 저감시키는 소음기(MUFFLER)(12)가 복개되어 결합되어 있다.In addition, the upper portion of the upper bearing 5 is coupled to the muffler (MUFFLER) 12 for reducing the discharge noise of the discharge gas is coupled.
또한, 상기 실린더(8)의 저압부에는 냉매가스가 실린더(8)내부로 유입되는 흡입구(8b)가 형성되어 있고, 상기 흡입구(8b)는 밀폐용기(1)의 측부에 설치되는 어큐뮬레이터(13) 및 냉매유입관(14)에 의해 연결되어 있다.In addition, an inlet port 8b through which the refrigerant gas flows into the cylinder 8 is formed at the low pressure part of the cylinder 8, and the inlet port 8b is an accumulator 13 installed at the side of the sealed container 1. ) And a refrigerant inlet pipe 14.
미설명 부호 15는 밀폐용기(1)내부에서 압축된 냉매가스가 외부로 토출되는 토출관이다.Reference numeral 15 is a discharge tube through which the refrigerant gas compressed in the sealed container 1 is discharged to the outside.
상기와 같은 구조는 인가되는 전류에 의해 회전자(3)가 회전하면서 회전축(4)을 회전시키게 되면, 회전축(4)의 회전에 의해 롤링피스톤(9)이 실린더(8)내부를 베인과 접촉된 상태에서 회전하게 되고, 상기 회전축(4)과 롤링피스톤(9)의 회전에 의해 어큐뮬레이터(13)로 유입된 저온저압의 냉매가스가 냉매유입관(14)과 흡입구(8b)를 통해 실린더(8)내부로 흡입되어 고온고압의 상태로 압축된다. 상기 실린더(8)에서 압축된 냉매가스는 일정압 이상으로 압축되면 토출밸브(10)가 열리면서 압축된 고온고압의 냉매가스가 토출포트(8a) 및 토출구멍(5a)을 통해 소음기(12)를 거쳐 토출되며 이 토출된 고온고압의 냉매가스는 밀폐용기(1)의 상부에 설치된 토출관(15)을 통해 압축기 외부로 토출된다.In the above structure, when the rotor 3 rotates while the rotor 3 rotates by an applied current, the rolling piston 9 contacts the vane inside the cylinder 8 by the rotation of the rotation shaft 4. In the low pressure state, and the low-temperature low-pressure refrigerant gas introduced into the accumulator 13 by the rotation of the rotating shaft 4 and the rolling piston 9 passes through the refrigerant inlet pipe 14 and the suction port 8b. 8) It is sucked inside and compressed under high temperature and high pressure. When the refrigerant gas compressed in the cylinder 8 is compressed to a predetermined pressure or more, the discharge valve 10 opens, and the compressed high temperature and high pressure refrigerant gas opens the silencer 12 through the discharge port 8a and the discharge hole 5a. The discharged high temperature and high pressure refrigerant gas is discharged to the outside of the compressor through a discharge pipe 15 installed on the sealed container 1.
한편, 상기 실린더(8)내부에서 일정 압력 이상으로 압축된 냉매가스가 소음기(12)를 통해 밀폐용기(1)내로 토출되는 종래의 구조는, 도 2a, 2b에 도시한 바와 같이, 상부베어링(5)의 일측에 실린더(8)의 토출포트(8a)와 연통되도록 직선형으로 관통된 토출구멍(5a)이 형성되고 상기 토출구멍(5a)이 형성된 상부베어링(5)의 상면에는 토출구멍(5a)의 둘레로 완충홈(5b)이 형성되어 토출구멍(5a)의 단부가 음각으로 돌출되도록 형성되어 있다. 그리고 상기 소정의 길이를 갖는 타성체인 토출밸브(10)와 토출밸브(10)의 움직임을 한정지지하는 리테이너(11)가 상기 토출구멍(5a)을 개폐가능하도록 상부베어링(5)의 일측에 고정볼트(16)에 의해 고정되어 있다.On the other hand, the conventional structure in which the refrigerant gas compressed to a predetermined pressure or more inside the cylinder 8 is discharged into the sealed container 1 through the silencer 12, as shown in Figure 2a, 2b, the upper bearing ( Discharge holes 5a are formed on one side of the upper side of the upper bearing 5 in which a straight through hole is formed so as to communicate with the discharge port 8a of the cylinder 8, and the discharge holes 5a are formed. ), The buffer groove 5b is formed so that the end of the discharge hole 5a protrudes in an intaglio. In addition, the discharge valve 10, which is an inertia body having the predetermined length, and a retainer 11 for limiting the movement of the discharge valve 10 are fixed to one side of the upper bearing 5 to open and close the discharge hole 5a. It is fixed by the bolt 16.
미설명 부호 5c는 내부에 삽입되는 회전축을 지지하는 상부베어링의 지지부이며, 5d는 볼트가 체결되는 나사공이다.Reference numeral 5c is a support portion of the upper bearing for supporting the rotating shaft inserted therein, 5d is a screw hole to which the bolt is fastened.
그러나 상기한 바와 같은 종래 밀폐형 회전식 압축기의 토출소음 저감구조는 실린더(8)내부에서 압축된 냉매가스가 토출밸브(10)의 개폐에 의해 토출포트(8a)와 토출구멍(5a)을 통해 소음기(12)내로 토출되면서 토출소음을 발생시키게 된다.However, the discharge noise reduction structure of the conventional hermetic rotary compressor, as described above, allows the refrigerant gas compressed inside the cylinder 8 to be silenced through the discharge port 8a and the discharge hole 5a by opening and closing the discharge valve 10. 12) discharged to generate discharge noise.
따라서, 본 발명의 목적은 실린더내에서 냉매가스를 압축하여 토출시키면서 발생되는 소음을 저감시킬 수 있도록 한 밀폐형 회전식 압축기의 토출소음 저감구조를 제공함에 있다.Accordingly, an object of the present invention is to provide a discharge noise reduction structure of a hermetic rotary compressor which can reduce noise generated by compressing and discharging refrigerant gas in a cylinder.
도 1은 일반적인 밀폐형 회전식 압축기의 일예를 도시한 단면도,1 is a cross-sectional view showing an example of a general hermetic rotary compressor,
도 2a는 종래 밀폐형 회전식 압축기의 토출소음 저감구조를 도시한 평면도,Figure 2a is a plan view showing a discharge noise reduction structure of a conventional hermetic rotary compressor,
도 2b는 종래 밀폐형 회전식 압축기의 토출소음 저감구조를 도시한 단면도,Figure 2b is a cross-sectional view showing a discharge noise reduction structure of a conventional hermetic rotary compressor,
도 3a는 본 발명의 밀폐형 회전식 압축기의 토출소음 저감구조를 도시한 평면도,Figure 3a is a plan view showing a discharge noise reduction structure of the hermetic rotary compressor of the present invention,
도 3b는 본 발명의 밀폐형 회전식 압축기의 토출소음 저감구조를 도시한 단면도,Figure 3b is a cross-sectional view showing a discharge noise reduction structure of the hermetic rotary compressor of the present invention,
도 4는 본 발명의 밀폐형 회전식 압축기의 토출소음 저감구조를 이루는 베어링의 평면도,4 is a plan view of a bearing forming the discharge noise reduction structure of the hermetic rotary compressor of the present invention;
도 5는 본 발명의 밀폐형 회전식 압축기의 토출소음 저감구조를 이루는 덮개부재의 평면도,5 is a plan view of the lid member constituting the discharge noise reduction structure of the hermetic rotary compressor of the present invention;
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
5' ; 베어링 5'a ; 토출구멍5 '; Bearing 5'a; Discharge hole
5'b ; 완충홈 5'c ; 공명홈5'b; Buffer groove 5'c; Resonance
7 ; 볼트 8 ; 실린더7; Bolt 8; cylinder
10 ; 토출밸브 11 ; 리테이너10; Discharge valve 11; Retainer
17 ; 덮개부재 17a ; 관통홈17; Cover member 17a; Through Groove
A ; 공명실 B ; 연결구멍A; Resonance chamber B; Connection hole
상기한 바와 같은 본 발명의 목적을 달성하기 위하여 내부에 냉매가스가 흡입되어 압축되는 압축공간이 형성된 실린더와 결합되는 베어링의 일측에 상기 실린더내의 압축공간과 연통되도록 토출구멍이 형성되고, 상기 베어링의 일측에 상기 토출구멍을 개폐시키는 토출밸브 및 이를 지지하는 리테이너가 결합되어, 상기 실린더 압축공간에서 압축된 가스가 일정 압력이상이 되면 토출밸브가 열리면서 압축된 가스가 토출구멍을 통해 토출되는 밀폐형 회전식 압축기의 토출소음 저감구조에 있어서; 상기 베어링의 상면에 토출구멍을 둘레로 소정의 형상으로 음각진 완충홈이 형성되고, 상기 완충홈의 일측에 소정의 내부 체적을 갖는 공명홈이 형성되며, 상기 베어링의 상면에 상기 공명홈을 복개하여 공명기를 이루도록 덮개부재를 결합하여 이루어짐을 특징으로 하는 밀폐형 회전식 압축기의 토출소음 저감구조가 제공된다.In order to achieve the object of the present invention as described above, the discharge hole is formed to communicate with the compression space in the cylinder on one side of the bearing coupled to the cylinder formed with a compression space in which the refrigerant gas is sucked and compressed therein, A discharge valve for opening and closing the discharge hole and a retainer for supporting the discharge hole are coupled to one side thereof, and when the gas compressed in the cylinder compression space exceeds a predetermined pressure, the discharge valve is opened and the compressed gas is discharged through the discharge hole. In the discharge noise reduction structure of the; An indented buffer groove is formed in a predetermined shape around the discharge hole on the upper surface of the bearing, a resonance groove having a predetermined internal volume is formed on one side of the buffer groove, and the resonance groove is covered on the upper surface of the bearing. There is provided a discharge noise reduction structure of the hermetic rotary compressor, characterized in that the cover member is coupled to form a resonator.
상기 공명홈은 소정의 형상을 갖는 공명실과 상기 공명실과 완충홈을 연통시키는 연결구멍으로 형성됨을 특징으로 하는 밀폐형 회전식 압축기의 토출소음 저감구조가 제공된다.The resonance groove is provided with a discharge noise reduction structure of the hermetic rotary compressor, characterized in that formed in the resonance hole having a predetermined shape and a connecting hole for communicating the resonance chamber and the buffer groove.
상기 공명실은 소정의 깊이와 직경을 갖는 원형으로 형성됨을 특징으로 하는 밀폐형 회전식 압축기의 토출소음 저감구조가 제공된다.The resonance chamber is provided with a discharge noise reduction structure of the hermetic rotary compressor, characterized in that formed in a circular shape having a predetermined depth and diameter.
상기 덮개부재는 내부의 일측에 상기 완충홈의 형상과 상응하는 형상으로 관통된 관통홈이 형성되고 가장자리에 베어링이 체결되는 볼트와 상응하도록 형성된 체결공을 구비한 소정의 두께를 갖는 원판형으로 형성되어, 베어링을 체결하는 볼트에 의해 결합됨을 특징으로 하는 밀폐형 회전식 압축기의 토출소음 저감구조가 제공된다.The cover member is formed in a disc shape having a predetermined thickness having a through hole formed in a shape corresponding to the shape of the buffer groove on one side of the inside and a fastening hole formed to correspond to a bolt to which the bearing is fastened to an edge thereof. Thus, the discharge noise reduction structure of the hermetic rotary compressor, which is coupled by bolts for fastening the bearings, is provided.
이하, 본 발명의 밀폐형 회전식 압축기의 토출소음 저감구조를 첨부도면에 도시한 실시예에 따라 설명하면 다음과 같다.Hereinafter, the discharge noise reduction structure of the hermetic rotary compressor of the present invention will be described according to the embodiment shown in the accompanying drawings.
본 발명의 밀폐형 회전식 압축기의 토출소음 저감구조는, 도 3a, 3b에 도시한 바와 같이, 내부에 냉매가스가 흡입되어 압축되는 압축공간이 형성된 실린더(8)와 결합되는 베어링(5')의 일측에 상기 실린더(8)내의 압축공간과 연통되도록 토출구멍(5'a)이 형성되고, 상기 베어링(5')의 일측에 상기 토출구멍(5'a)을 개폐시키는 토출밸브(10) 및 이를 지지하는 리테이너(11)가 결합되며, 상기 베어링(5')의 상면에 토출구멍(5'a)을 둘레로 소정의 형상으로 음각진 완충홈(5'b)이 형성되고, 상기 완충홈(5'b)의 일측에 소정의 내부 체적을 갖는 공명홈(5'c)이 형성되며, 상기 베어링(5')의 상면에 상기 공명홈(5'c)을 복개하여 공명기(Resonator)를 이루도록 덮개부재(17)를 결합하여 이루어진다.The discharge noise reduction structure of the hermetic rotary compressor of the present invention, as shown in Figures 3a, 3b, one side of the bearing (5 ') coupled with the cylinder (8) having a compression space in which the refrigerant gas is sucked and compressed therein. A discharge hole 5'a is formed in the cylinder 8 so as to communicate with a compression space in the cylinder 8, and a discharge valve 10 opening and closing the discharge hole 5'a at one side of the bearing 5 ', and Supporting retainer 11 is coupled to the upper surface of the bearing (5 ') is formed with a recessed buffer groove (5' b) in a predetermined shape around the discharge hole (5 'a), the buffer groove ( A resonance groove 5'c having a predetermined internal volume is formed on one side of 5'b), and the resonance groove 5'c is covered on the upper surface of the bearing 5 'to form a resonator. It is made by coupling the cover member (17).
상기 공명홈(5'c)은, 도 4에 도시한 바와 같이, 소정의 형상을 갖는 공명실(A)과 상기 공명실(A)과 완충홈(5'b)을 연통시키는 연결구멍(B)으로 형성되며, 상기 공명실(A)은 소정의 깊이와 직경을 갖는 원형으로 형성됨이 바람직하다. 상기 공명홈(5'c)은 토출밸브(10)에 의해 개폐되는 토출구멍(5'a)의 전면에 위치하도록 형성됨이 바람직하다.As shown in Fig. 4, the resonance groove 5'c has a resonance hole A having a predetermined shape, and a connection hole B for communicating the resonance chamber A with the buffer groove 5'b. It is preferably formed into a resonance chamber (A) is formed in a circular shape having a predetermined depth and diameter. The resonance groove 5'c is preferably formed to be located in front of the discharge hole 5'a which is opened and closed by the discharge valve 10.
상기 완충홈(5'b)은 소정의 깊이로 형성되며 상기 토출밸브(10)와 리테이너(11)를 포함한 영역으로 형성되고, 상기 토출구멍(5'a)은 상기 완충홈(5'b)내에 형성되며 그 단부,즉 상면은 완충홈(5'b)의 저면보다 높고 베어링(5') 상면보다 낮게 된다. 상기 토출밸브(10)와 리테이너(11)는 상기 완충홈(5'b)내의 일측에 결합되어 상기 토출구멍(5'a)을 개폐하게 되며, 상기 토출밸브(10)와 리테이너(11)는 일측이 고정볼트(16)에 의해 결합된다.The buffer groove 5'b is formed to a predetermined depth and is formed as an area including the discharge valve 10 and the retainer 11, and the discharge hole 5'a is the buffer groove 5'b. And an end thereof, i.e., the upper surface, is higher than the bottom of the buffer groove 5'b and lower than the upper surface of the bearing 5 '. The discharge valve 10 and the retainer 11 are coupled to one side of the buffer groove 5'b to open and close the discharge hole 5'a, and the discharge valve 10 and the retainer 11 are One side is coupled by the fixing bolt 16.
그리고 상기 베어링(5')에는 상기 실린더(8)와 볼트(7)에 의해 체결될 수 있도록 수개의 나사공(5'd)이 관통형성되며, 가운데는 회전축(4)이 삽입되도록 축삽입공(5'e)이 형성된다.In addition, several bearing holes 5'd are formed in the bearing 5 'so as to be fastened by the cylinder 8 and the bolt 7, and a shaft insertion hole is inserted into the center of the bearing 5'. (5'e) is formed.
상기 덥개부재(17)는, 도 5에 도시한 바와 같이, 내부의 일측에 상기 완충홈(5'b)의 형상과 상응하는 형상으로 관통된 관통홈(17a)이 형성되고 가장자리에 베어링(5')이 체결되는 볼트(7)와 상응하도록 형성된 체결공(17b)을 구비한 소정의 두께를 갖는 원판형으로 형성되어, 베어링(5')을 체결하는 볼트(7)에 의해 결합된다.As shown in FIG. 5, the lid member 17 is formed with a through hole 17a penetrated in a shape corresponding to that of the buffer groove 5'b at one side thereof and a bearing 5 at an edge thereof. ') Is formed into a disc shape having a predetermined thickness with a fastening hole 17b formed to correspond to the bolt 7 to be fastened, and is joined by the bolt 7 to fasten the bearing 5'.
이하, 본 발명의 밀폐형 회전식 압축기의 토출소음 저감구조의 작용효과를 설명하면 다음과 같다.Hereinafter, the operation and effect of the discharge noise reduction structure of the hermetic rotary compressor of the present invention will be described.
본 발명의 밀폐형 회전식 압축기의 토출소음 저감구조는 실린더(8)내부의 압축공간에서 회전축(4)의 회전에 의해 롤링피스톤(9)이 회전하면서 냉매가스를 흡입하고 압축하게 된다. 이 압축된 냉매가스는 토출밸브(10)의 열림에 의해 토출구멍(5'a)으로 토출된다. 이때 토출밸브(10)의 열림에 의해 토출되는 토출가스의 일부가 완충홈(5'b)으로 유입되어 공명기내부를 거치면서 토출소음을 저감시키게 된다. 상기 공명기의 내부 체적 설계에 따라 특정 대역 주파수의 소음을 저감시킬 수 있게 된다.The discharge noise reduction structure of the hermetic rotary compressor of the present invention sucks and compresses the refrigerant gas while the rolling piston 9 rotates by the rotation of the rotary shaft 4 in the compression space inside the cylinder 8. The compressed refrigerant gas is discharged to the discharge hole 5'a by opening the discharge valve 10. At this time, a part of the discharge gas discharged by the opening of the discharge valve 10 is introduced into the buffer groove (5 'b) to reduce the discharge noise while passing through the resonator. According to the internal volume design of the resonator it is possible to reduce the noise of a specific band frequency.
본 발명은 얇은 막에 의해 형성된 덮개부재(17)를 소음기(12)내에 결합하게 됨으로 구조를 콤팩트하게 할 뿐만 아니라 소음기(12)내의 체적효율 저하를 최소화화게 된다.The present invention combines the cover member 17 formed by the thin film into the muffler 12, which not only makes the structure compact, but also minimizes the decrease in the volume efficiency in the muffler 12.
상기 베어링(5')은 상부베어링(5)이나 하부베어링(6)이 될 수 있다.The bearing 5 ′ may be an upper bearing 5 or a lower bearing 6.
이상에서 설명한 바와 같이, 본 발명에 의한 밀폐형 회전식 압축기의 토출소음 저감구조는 실린더의 압축공간내에서 압축된 냉매가스의 토출작용이 원활할 뿐만 아니라 토출소음 발생이 최소화됨으로써 압축기의 신뢰성을 향상시킬 수 있는 효과가 있다.As described above, the discharge noise reduction structure of the hermetic rotary compressor according to the present invention can improve the reliability of the compressor by not only smoothly discharging the compressed refrigerant gas in the compression space of the cylinder but also minimizing discharge noise. It has an effect.
Claims (4)
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| KR1019980001561A KR100273400B1 (en) | 1998-01-20 | 1998-01-20 | Structure for reducing noise in hermetic type rotary compressor |
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| KR1019980001561A KR100273400B1 (en) | 1998-01-20 | 1998-01-20 | Structure for reducing noise in hermetic type rotary compressor |
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