KR100455420B1 - Connecting structure of outlet valve for hermetic rotary compressor - Google Patents
Connecting structure of outlet valve for hermetic rotary compressor Download PDFInfo
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- KR100455420B1 KR100455420B1 KR10-2002-0013904A KR20020013904A KR100455420B1 KR 100455420 B1 KR100455420 B1 KR 100455420B1 KR 20020013904 A KR20020013904 A KR 20020013904A KR 100455420 B1 KR100455420 B1 KR 100455420B1
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- discharge
- cylinder
- discharge port
- rotary compressor
- upper bearing
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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 토출밸브 조립체에 관한 것으로서, 압축된 냉매를 토출하기 위한 토출포트와, 상기 토출포트의 측부에 나사체결부재의 머리부가 잠기도록 형성된 잠김홈을 구비한 실린더와; 상기 토출포트에 연통되도록 형성된 토출구와, 상기 나사체결부재의 머리부가 걸려 고정되도록 관통공을 구비한 상부 베어링과; 상기 토출구를 개폐함과 아울러 타 일측에 상기 나사체결부재에 체결되도록 밸브 체결공을 구비한 리드밸브와; 상기 리드밸브의 개방상태를 한정하고 탄성지지함과 아울러 상기 나사체결부재에 체결되도록 나선이 형성된 리테이너 체결공을 구비한 리테이너로; 구성하여 토출밸브 조립체의 과도한 체결력이나 또는 고온고압의 냉매가스의 토출하중에 의한 토출밸브 조립체가 체결되는 상부 베어링의 단차부의 변형을 최소화하여 실린더의 누설을 방지하여 압축효율을 향상시키는 효과를 갖는다.The present invention relates to a discharge valve assembly of a hermetic rotary compressor, comprising: a cylinder having a discharge port for discharging compressed refrigerant, and a locking groove formed at a side of the discharge port to lock the head of the screwing member; An upper bearing having a discharge hole formed to communicate with the discharge port, and a through hole so that the head of the screw fastening member is caught and fixed; A reed valve having a valve fastening hole to open and close the discharge port and to be fastened to the screw fastening member on the other side; A retainer having a retainer fastening hole formed with a spiral to limit the open state of the reed valve and to elastically support and to be fastened to the screw fastening member; It is configured to minimize the deformation of the stepped portion of the upper bearing to which the discharge valve assembly is fastened by excessive clamping force of the discharge valve assembly or the discharge load of the refrigerant gas of high temperature and high pressure to prevent the leakage of the cylinder to improve the compression efficiency.
Description
본 발명은 밀폐형 회전식 압축기에 관한 것으로서, 특히 실린더에서 압축된 냉매가스를 토출시키기 위하여 상부베어링에 형성된 토출공을 개폐하는 밀폐형 회전식압축기용 토출밸부 조립체의 체결구조에 관한 것이다.The present invention relates to a hermetic rotary compressor, and more particularly, to a fastening structure of a discharge valve assembly for a hermetic rotary compressor for opening and closing a discharge hole formed in an upper bearing to discharge a refrigerant gas compressed in a cylinder.
종래의 밀폐식 회전형 압축기 리드밸브의 소음저감 장치를 도시한 도면에 따라 그 구성과 작동을 설명하면 다음과 같다.Referring to the configuration and operation of the noise reduction device of the conventional hermetic rotary compressor reed valve as follows.
도 1은 종래의 밀폐형 회전식 압축기의 종단면도이고, 도 2는 종래의 밀폐형 회전식 압축기의 토출밸브 조립체의 체결구조를 도시한 부분확대 단면도이다.1 is a longitudinal sectional view of a conventional hermetic rotary compressor, and FIG. 2 is a partially enlarged cross-sectional view illustrating a fastening structure of a discharge valve assembly of a conventional hermetic rotary compressor.
도 1, 도2에서 도시한 바와 같이, 소정의 형상으로 형성된 밀폐용기(110) 내에 냉매 가스를 흡입, 압축 및 토출하는 압축기구부(130)와, 상기 압축기구부(130)를 구동하기 위한 전동기구부(120)로 구성된다.1 and 2, the compressor mechanism 130 for sucking, compressing and discharging the refrigerant gas in the sealed container 110 formed in a predetermined shape, and the electric mechanism for driving the compressor mechanism 130 It consists of 120.
상기 전동기구부(120)는 전원이 인가되면 자력을 발생하는 고정자(121)와, 그 고정자(121)의 자력에 의하여 회전하는 회전자(122)와, 그 회전자(122)의 내경에 압입되는 회전축(123)으로 구성된다.The power mechanism 120 is press-fitted into the stator 121 for generating a magnetic force when the power is applied, the rotor 122 rotates by the magnetic force of the stator 121, and the inner diameter of the rotor 122 It consists of a rotating shaft 123.
상기 압축기구부(130)는 냉매 가스를 흡입하여 압축 후 토출하기 위한 실린더(131)와, 상기 실린더(131)의 상, 하부에 조립 결합되어 상기 실린더(131) 내에 압축실(P)을 형성하고 상기 회전축(123)을 관통시켜 지지하는 상부베어링(132)과 하부베어링(133) 이루어진다.The compression mechanism unit 130 is a cylinder 131 for sucking, compressing and discharging the refrigerant gas, and is assembled to the upper and lower portions of the cylinder 131 to form a compression chamber P in the cylinder 131. An upper bearing 132 and a lower bearing 133 are formed to support the rotating shaft 123 to pass therethrough.
상기 회전축(123)의 축중심과 중심이 편심되어 형성된 편심부(124)가 상기 실린더의 압축실(P) 내부에 삽입되도록 형성되고, 상기 편심부(124)의 외측에서 공전하는 롤링피스톤(134)이 구비된다.An eccentric portion 124 formed by eccentric center and center of the rotating shaft 123 is formed to be inserted into the compression chamber P of the cylinder, and rolling piston 134 revolves outside the eccentric portion 124. ) Is provided.
상기 롤링피스톤(134)의 외주면과 일 측 단부가 선 접촉되어 실린더(131)의 압축실(P) 내주면과 롤링피스톤(134)의 외주면에 의해 형성되는 내부공간을 흡입영역과 압축영역으로 분리시키도록 상기 압축실(P)의 일 측에 반경 방향으로 직선 왕복운동 가능하도록 삽입 고정된 베인(미도시)으로 구성된다.The outer circumferential surface of the rolling piston 134 and one end thereof are in line contact with each other to separate the inner space formed by the inner circumferential surface of the compression chamber P of the cylinder 131 and the outer circumferential surface of the rolling piston 134 into a suction zone and a compression zone. It is composed of vanes (not shown) that are inserted and fixed to enable linear reciprocation in the radial direction on one side of the compression chamber (P).
상기 실린더(131)는 냉매 가스를 흡입하기 위해 베인(미도시) 측부의 흡입영역에 연통되도록 실린더 벽면을 관통하여 형성된 흡입포트(140)와, 베인(미도시)의 타 측에 압축영역에서 압축된 가스가 토출되도록 실린더 벽면 상측면 일부를 따서 형성된 토출포트(141)가 구비되고, 상기 토출포트(141)가 형성된 상부면 일 측에는 나사 잠김홈(142)이 형성된다.The cylinder 131 is a suction port 140 formed through the cylinder wall so as to communicate with the suction area of the vane side (not shown) to suck the refrigerant gas, and compressed in the compression region on the other side of the vane (not shown) A discharge port 141 is formed along a portion of the upper surface of the cylinder wall to discharge the gas, and a screw locking groove 142 is formed on one side of the upper surface on which the discharge port 141 is formed.
상기 상부베어링(132)은 상기 실린더(131)의 토출포트(141)에 연통되게 형성된 토출구(142)와, 상기 토출구(142)를 개폐하기 위한 토출밸브 조립체(150)를 나사체결하도록 상부면 일 측에 상시 실린더(131)의 나사 잠김홈(157)에 연통되어 나사산이 구비된 베어링 체결공(156)이 단면이 감소되어 형성된 단차부(135)에 형성된다.The upper bearing 132 has an upper surface to screw the discharge port 142 formed to communicate with the discharge port 141 of the cylinder 131 and the discharge valve assembly 150 for opening and closing the discharge port 142. The bearing fastening hole 156, which is in communication with the screw locking groove 157 of the cylinder 131 at the side, is provided in the stepped portion 135 formed by reducing the cross section.
상기 토출밸브 조립체(150)는 상기 상부베어링(132)의 토출구(142)를 개폐하기 위한 리드밸브(152)와, 상기 리드밸브(152)의 열림상태를 한정하고 탄성지지하기 위한 리테이너(151)로 이루어진다.The discharge valve assembly 150 includes a reed valve 152 for opening and closing the discharge port 142 of the upper bearing 132, and a retainer 151 for limiting and elastically supporting an open state of the reed valve 152. Is made of.
상기 리드밸브(152)와 리테이너(151)는 일 측에 상기 상부베어링(132)의 상측에 나사체결부재(153)에 의하여 나사체결되도록 밸브 체결공(155)과 리테이너 체결공이 각각 베어링 체결공(154)에 연통되도록 형성된다.The reed valve 152 and the retainer 151 have a valve fastening hole 155 and a retainer fastening hole, respectively, so as to be screwed on the one side by a screw fastening member 153 on the upper side of the upper bearing 132. 154 is communicated with.
도면중 미설명 부호 143은 소음기, 144는 냉매 흡입관, 145는 냉매 토출관, 146은 압축기 받침대, 그리고 BW는 벨런싱 웨이트이다.In the drawings, reference numeral 143 denotes a silencer, 144 a refrigerant suction tube, 145 a refrigerant discharge tube, 146 a compressor support, and BW a balancing weight.
이와 같은 구성된 종래 기술에 따른 밀폐형 회전식 압축기(100)의 작동은 전동기구부(120)에 전원이 인가되면 고정자(121)와 회전자(122) 사이에 유도전류가 발생하여 회전자가 회전하게 되고, 상기 회전자(122)의 회전에 따라 회전자(122)에 압입된 회전축(123)이 회전하게 된다.In the operation of the hermetic rotary compressor 100 according to the prior art configured as described above, when power is applied to the electric mechanism unit 120, an induction current is generated between the stator 121 and the rotor 122 to rotate the rotor. As the rotor 122 rotates, the rotating shaft 123 press-fitted to the rotor 122 rotates.
상기 회전축(123)의 회전에 의해 회전축(123)에 편심부(124)가 결합된 롤링피스톤(134)이 베인(미도시)과 접촉된 상태에서 실린더(131)의 압축실(P)에서 편심회전하게 되면 압축실(P)의 체적이 변화에 의하여 고온저압의 냉매가스가 흡입포트(140)를 통해 상기 압축실(P)로 흡입되어 고온고압상태로 압축된다.The eccentric in the compression chamber P of the cylinder 131 in a state in which the rolling piston 134 coupled with the eccentric portion 124 to the rotary shaft 123 by contact with the vanes (not shown) by the rotation of the rotary shaft 123. When rotated, the refrigerant gas of high temperature and low pressure is sucked into the compression chamber P through the suction port 140 by the volume of the compression chamber P, and is compressed to a high temperature and high pressure state.
그 압축된 고온고압의 냉매 가스는 일정압 이상이 되면 상부베어링(132)의 토출구(142)을 막고 있던 리드밸브(152)가 열리면서 토출포트(141) 및 토출구(142)를 통해 토출되어 상부베어링(132)과 소음기(114) 사이의 공간으로 토출되고, 소음기(114)의 상부면에 소음기토출구(미도시)를 거쳐 밀폐용기(101) 내부를 통해 토출관(115)으로 토출된다.The compressed high-temperature high-pressure refrigerant gas is discharged through the discharge port 141 and the discharge port 142 by opening the reed valve 152 blocking the discharge port 142 of the upper bearing 132 when a predetermined pressure or more. Discharged into the space between the 132 and the silencer 114, and discharged to the discharge tube 115 through the inside of the sealed container 101 through the silencer discharge port (not shown) on the upper surface of the silencer 114.
이때, 나사체결부재(153)가 상기 리드밸브(152)의 밸브 체결공(155)과 이를 한정 지지하는 리테이너(151)의 리테이너 체결공(154)을 관통하여 나선이 구비된상기 상부베어링(132)의 베어링 체결공(156)에 체결되고, 상기 실린더(131)의 나사 잠김홈(157)에 잠기도록 상부에서 하부로 체결되어 고온고압의 토출냉매에 의하여 지속적인 하중을 받음으로서 상부베어링(132)의 단차부(135)의 베어링 체결공(156) 형성부가 변형이 발생하고, 상기 리테이너(151)와 상기 리드밸브(152)의 체결시 나사체결부재(153)의 체결력에 의하여 상부베어링(132)의 베어링 체결공(156) 형성부분의 단면에 변형이 발생하여 상기 실린더(131)의 누설 및 성능 저하를 발생하는 문제점이 있다.At this time, the screw fastening member 153 penetrates through the valve fastening hole 155 of the reed valve 152 and the retainer fastening hole 154 of the retainer 151 for limited support thereof. The upper bearing 132 is fastened to the bearing fastening hole 156 of the c), and fastened from the upper part to the lower part so as to be locked in the screw locking groove 157 of the cylinder 131 and subjected to continuous load by the high-temperature and high-pressure discharge refrigerant. The bearing fastening hole 156 forming part of the stepped portion 135 of the deformation occurs, and the upper bearing 132 by the fastening force of the screw fastening member 153 when the retainer 151 and the reed valve 152 is fastened. Deformation occurs in the cross section of the bearing coupling hole 156 forming part of the cylinder 131, there is a problem that causes leakage and degradation of the cylinder 131.
상기 문제점을 해결하기 위하여 안출된 본 발명에 따르면, 토출밸브 조립체를 체결하기 위한 체결력에 의해 부품의 변형이 발생되는 것을 방지하여 상기 실린더의 누설에 따른 성능저하의 문제점을 해결하기 위한 밀폐형 회전식 압축기의 토출밸브 조립체의 체결구조를 제공함을 목적으로 한다.According to the present invention devised to solve the above problems, the sealing of the rotary compressor to solve the problem of performance degradation due to leakage of the cylinder by preventing the deformation of the component by the fastening force for fastening the discharge valve assembly It is an object to provide a fastening structure of the discharge valve assembly.
도 1은 종래의 밀폐형 회전식 압축기의 종단면도,1 is a longitudinal sectional view of a conventional hermetic rotary compressor,
도 2는 종래의 밀폐형 회전식 압축기의 리드밸브 체결 구조를 도시한 부분확대 단면도,Figure 2 is a partially enlarged cross-sectional view showing a lead valve fastening structure of a conventional hermetic rotary compressor,
도 3은 본 발명의 밀폐형 회전식 압축기의 종단면도,3 is a longitudinal sectional view of the hermetic rotary compressor of the present invention;
도 4는 본 발명의 밀폐형 회전식 압축기의 상부 베어링 평면도,4 is a plan view of the upper bearing of the hermetic rotary compressor of the present invention;
도 5는 도 4의 A-A 부분 확대 종단면도,5 is an enlarged longitudinal cross-sectional view of the A-A portion of FIG.
도 6은 도 5의 B부분 확대 단면도.FIG. 6 is an enlarged cross-sectional view of portion B of FIG. 5; FIG.
*도면의 주요부분에 대한 설명** Description of the main parts of the drawings *
31: 실린더 32: 상부베어링31: cylinder 32: upper bearing
33: 하부베어링 35: 단차부33: lower bearing 35: stepped portion
50: 토출밸브 조립체 51: 리테이너50: discharge valve assembly 51: retainer
52: 리드밸브 53: 나사체결부재52: reed valve 53: screwing member
53a: 머리부 53b: 몸통부53a: head 53b: body
54: 리테이너 체결공 55: 밸브 체결공54: Retainer Fastening Hole 55: Valve Fastening Hole
56: 관통공 57: 잠김홈56: through hole 57: locked groove
상기 목적을 달성하기 위하여 본 발명은 실린더의 상측에 상부 베어링이 조립되고 하측에 하부 베어링이 조립되어 내부에 압축실이 형성되어 있고, 상기 상부 베어링의 일측에는 상기 압축실과 소음기의 내측을 연통하는 토출구가 형성되어 있으며, 그 토출구의 주변에는 리테이너와 리드밸브가 나사체결부재로 고정되어 있는 밀폐형 회전식 압축기에 있어서,상기 실린더의 상면에는 상기 나사체결부재의 머리부가 삽입될 수 있도록 잠김홈이 형성되고, 상기 리테이너와 리드밸브는 상기 나사체결부재의 머리부가 상기 잠김홈에 삽입되도록 나사체결부재가 상부베어링의 하측에서 상방향으로 삽입되어 나사식으로 고정된 것을 특징으로 하는 밀폐형 회전식 압축기의 토출밸부 조립체의 체결구조에 의해 달성된다.In order to achieve the above object of the present invention, the upper bearing is assembled on the upper side of the cylinder and the lower bearing is assembled on the lower side to form a compression chamber therein, and one side of the upper bearing discharge port communicates with the inside of the compression chamber and the silencer. In the sealed rotary compressor in which the retainer and the reed valve are fixed by the screw fastening member, the locking groove is formed in the upper surface of the cylinder so that the head of the screw fastening member can be inserted, The retainer and the reed valve of the discharge valve assembly of the hermetic rotary compressor, characterized in that the screw fastening member is inserted upward from the lower side of the upper bearing so that the head of the screw fastening member is inserted into the locking groove. Achieved by a fastening structure.
이하, 본 발명의 밀폐형 회전식 압축기의 토출밸브 조립체의 체결구조를 .도시한 도면에 따라 그 구성과 작동을 설명하면 다음과 같다.Hereinafter, the structure and operation of the fastening structure of the discharge valve assembly of the hermetic rotary compressor according to the present invention will be described.
도 3은 본 발명의 밀폐형 회전식 압축기의 종단면도이고, 도 4는 본 발명의 밀폐형 회전식 압축기의 상부 베어링 평면도이며, 도 5는 도 4의 A-A 부분 확대 종단면도이고, 도 6은 도 5의 B부분 확대 단면도이다.3 is a longitudinal sectional view of the hermetic rotary compressor of the present invention, FIG. 4 is a top plan view of the upper bearing of the hermetic rotary compressor of the present invention, FIG. 5 is an enlarged longitudinal sectional view of the AA portion of FIG. 4, and FIG. 6 is a portion B of FIG. 5. It is an enlarged cross section.
도 1 내지 도 6에서 도시한 바와 같이, 밀폐형 회전식 압축기(1) 소정의 형상으로 형성된 밀폐용기(10) 내에 냉매 가스를 흡입, 압축 및 토출하는 압축기구부(30)와, 상기 압축기구부(30)를 구동하기 위한 전동기구부(20)로 구성된다.1 to 6, the hermetic rotary compressor 1 includes a compression mechanism unit 30 for sucking, compressing, and discharging refrigerant gas into a sealed container 10 formed in a predetermined shape, and the compression mechanism unit 30. Consists of a motor mechanism 20 for driving the.
상기 전동기구부(20)는 전원이 인가되면 자력을 발생하는 고정자(21)와, 그 고정자(21)의 자력에 의하여 회전하는 회전자(22)와, 그 회전자(22)의 내경에 압입되는 회전축(23)으로 구성된다.The power mechanism 20 is press-fitted into the stator 21 for generating a magnetic force when the power is applied, the rotor 22 to rotate by the magnetic force of the stator 21, and the inner diameter of the rotor 22 It consists of a rotating shaft 23.
상기 압축기구부(30)는 냉매 가스를 흡입하여 압축 후 토출하기 위한 실린더(31)와, 상기 실린더(31)의 상, 하부에 조립 결합되어 상기 실린더(31) 내에 압축실(P)을 형성하고 상기 회전축(23)을 관통시켜 지지하는 상부베어링(32)과 하부베어링(33) 이루어진다.The compression mechanism 30 is a cylinder 31 for sucking, compressing and discharging the refrigerant gas, and is assembled to the upper and lower portions of the cylinder 31 to form a compression chamber P in the cylinder 31, The upper bearing 32 and the lower bearing 33 are formed to pass through the rotating shaft 23.
상기 회전축(23)의 축중심과 중심이 편심되어 형성된 편심부(24)가 상기 실린더(31)의 압축실(P) 내부에 삽입되도록 형성되고, 상기 편심부(24)의 외측에서 공전하는 롤링피스톤(34)이 구비된다.An eccentric portion 24 formed by eccentric center and center of the rotating shaft 23 is formed so as to be inserted into the compression chamber P of the cylinder 31, and rolling to the outer side of the eccentric portion 24 The piston 34 is provided.
상기 롤링피스톤(34)의 외주면과 일 측 단부가 선 접촉되어 실린더(31)의 압축실(P) 내주면과 롤링피스톤(34)의 외주면에 의해 형성되는 내부공간을 흡입영역과 압축영역으로 분리시키도록 상기 압축실(P)의 일 측에 반경 방향으로 직선 왕복운동 가능하도록 삽입 고정된 베인(미도시)으로 구성된다.The outer circumferential surface of the rolling piston 34 and one end thereof are in line contact with each other to separate the inner space formed by the inner circumferential surface of the compression chamber P of the cylinder 31 and the outer circumferential surface of the rolling piston 34 into a suction zone and a compression zone. It is composed of vanes (not shown) that are inserted and fixed to enable linear reciprocation in the radial direction on one side of the compression chamber (P).
상기 실린더(31)는 냉매 가스를 흡입하기 위해 베인(미도시) 측부의 흡입영역에 연통되도록 실린더(31) 벽면을 관통하여 형성된 흡입포트(40)와, 베인(미도시)의 타 측에 압축영역에서 압축된 가스가 토출되도록 실린더(31) 벽면 상측 모서리 일부를 따서 형성된 토출포트(41)가 구비되고, 상기 토출포트(41)가 형성된 상부면 측부에 나사체결부재(53)의 머리부(53a)가 삽입되어 잡기도록 잠김홈(57)이 형성된다.The cylinder 31 is compressed to the suction port 40 formed through the wall of the cylinder 31 so as to communicate with the suction region of the vane side to suck the refrigerant gas, and the other side of the vane (not shown) A discharge port 41 is formed along a portion of the upper edge of the wall of the cylinder 31 so that the compressed gas is discharged from the area, and the head portion of the screwing member 53 is formed on the upper side of the upper surface where the discharge port 41 is formed. The locking groove 57 is formed so that 53a) is inserted and gripped.
상기 상부베어링(32)은 상기 실린더(31)의 토출포트(41)에 연통되게 형성된 토출구(42)와, 상기 실린더(31)의 잠김홈(57)에 머리부(53a)가 잠긴 나사체결부재(53)의 머리부(53a)가 결려 고정됨과 아울러 몸통부(53b)가 상측으로 관통하여 상기 토출밸브 조립체(50)를 체결하도록 관통공(56)이 단면이 감소되어 형성된 단차부(35)에 형성된다.The upper bearing 32 has a discharge port 42 formed in communication with the discharge port 41 of the cylinder 31 and a screw fastening member whose head portion 53a is locked in the locking groove 57 of the cylinder 31. The step portion 35 is formed by reducing the cross-section of the through hole 56 so that the head portion 53a of the 53 is fixed and the body portion 53b penetrates upward to engage the discharge valve assembly 50. Is formed.
상기 토출밸브 조립체(50)는 상기 상부베어링(32)의 토출구(42)를 개폐하기 위한 리드밸브(52)와, 상기 리드밸브(52)의 열림상태를 한정하고 탄성지지하기 위한 리테이너(51)로 이루어진다.The discharge valve assembly 50 includes a reed valve 52 for opening and closing the discharge port 42 of the upper bearing 32, and a retainer 51 for limiting and elastically supporting an open state of the reed valve 52. Is made of.
상기 리드밸브(51)는 상기 상부베어링(32)의 토출구(42)를 개폐하도록 상기 관통공(56)을 관통한 나사체결부재(53)에 의하여 일측이 체결되도록 밸브 체결공(55)이 형성된다.The reed valve 51 has a valve fastening hole 55 formed to be fastened to one side by a screw fastening member 53 passing through the through hole 56 to open and close the outlet 42 of the upper bearing 32. do.
상기 리테이너(51)는 상기 리드밸브(52)를 탄성 지지하도록 일 측에 상기 상부베어링(32)에 체결되도록 나사체결부재(53)와 나선 결합되도록 나선이 형성된 리테이너 체결공(54)이 구비된다.The retainer 51 has a retainer fastening hole 54 formed with a spiral so as to be spirally coupled with the screw fastening member 53 to be fastened to the upper bearing 32 on one side to elastically support the reed valve 52. .
도면중 미설명 부호 43은 소음기, 44는 냉매 흡입관, 45는 냉매 토출관, 46은 압축기 받침대, 그리고 BW는 벨런싱 웨이트이다.In the figure, reference numeral 43 denotes a silencer, 44 a refrigerant suction tube, 45 a refrigerant discharge tube, 46 a compressor support, and BW a balancing weight.
이와 같은 구성된 종래 기술에 따른 밀폐형 회전식 압축기(1)의 작동은 전동기구부(20)에 전원이 인가되면 고정자(21)와 회전자(22) 사이에 유도전류가 발생하여 회전자가 회전하게 되고, 상기 회전자(22)의 회전에 따라 회전자(22)에 압입된 회전축(23)이 회전하게 된다.In the operation of the hermetic rotary compressor 1 according to the related art configured as described above, when power is applied to the electric mechanism unit 20, an induction current is generated between the stator 21 and the rotor 22 to rotate the rotor. As the rotor 22 rotates, the rotating shaft 23 press-fitted to the rotor 22 rotates.
상기 회전축(23)의 회전에 의해 회전축(23)에 편심부(24)가 결합된 롤링피스톤(34)이 베인(미도시)과 접촉된 상태에서 실린더(31)의 압축실(P)에서 편심 회전하게 되면 압축실(P)의 체적이 변화에 의하여 고온저압의 냉매가스가 흡입포트(40)를 통해 상기 압축실(P)로 흡입되어 고온고압상태로 압축된다.The eccentric in the compression chamber P of the cylinder 31 in a state in which the rolling piston 34, in which the eccentric portion 24 is coupled to the rotary shaft 23 by the rotation of the rotary shaft 23, is in contact with the vanes (not shown). When it rotates, the refrigerant gas of high temperature and low pressure is sucked into the compression chamber P through the suction port 40 by the volume of the compression chamber P, and is compressed to high temperature and high pressure state.
그 압축된 고온고압의 냉매 가스는 일정압 이상이 되면 상부베어링(32)의 토출구(42)를 막고 있던 리드밸브(52)가 열리면서 토출포트(41) 및 토출구(42)을 통해 토출되어 상부베어링(32)과 소음기(43) 사이의 공간으로 토출되고, 밀폐용기(10) 내부를 통해 토출관(45)으로 토출된다.The compressed high-temperature high-pressure refrigerant gas is discharged through the discharge port 41 and the discharge port 42 by opening the reed valve 52 blocking the discharge port 42 of the upper bearing 32 when the predetermined pressure is higher than a predetermined pressure. It is discharged to the space between the 32 and the silencer 43, and is discharged to the discharge pipe 45 through the sealed container 10.
이때, 나사체결부재(53)가 상기 리드밸브(52)의 밸브 체결공(55)과 이를 한정 지지하는 리테이너(51)의 나선이 형성된 리테이너 체결공(54)에 상기 실린더(31)의 잠김홈(57)에 머리부(53a)가 잠기어 상기 상부베어링(32)의 관통공(56)에 머리부(53a)가 걸려 고정되도록 관통된 나사체결부재(53)의 몸통부(53b)에 나선결합되도록 상부 베어링(32)의 저부에서 상측으로 단차부(34)에 결합함으로서, 상기 실린더(51)에서 압축되어 토출되는 냉매 가스에 의한 토출 하중과, 나사체결부재(53)의 체결력에 의하여 상기 토출밸브 조립체(50)의 체결부인 상부베어링(32)의 단차부의 변형을 방지하도록 한다.At this time, the screw fastening member 53 is locked groove of the cylinder 31 in the retainer fastening hole 54 formed with a spiral of the valve fastening hole 55 of the reed valve 52 and the retainer 51 for supporting it limitedly. The head portion 53a is locked to the head portion 57a, and the head portion 53b of the screwing member 53, which is penetrated so that the head portion 53a is caught and fixed to the through hole 56 of the upper bearing 32, is spiraled. By coupling to the step portion 34 from the bottom of the upper bearing 32 to the upper side to be coupled, the discharge load by the refrigerant gas compressed and discharged from the cylinder 51 and the fastening force of the screw fastening member 53 To prevent deformation of the stepped portion of the upper bearing 32, which is a fastening portion of the discharge valve assembly 50.
이상 설명한 바와 같이, 본 발명에 따르면 밀폐형 회전식 압축기의 토출밸브 조립체의 과도한 체결력이나 또는 고온고압의 냉매가스의 토출하중에 의한 상부 베어링의 단차부의 변형을 최소화하여 실린더의 누설을 방지하여 압축효율을 향상시키는 효과를 갖는다.As described above, according to the present invention minimizes the deformation of the stepped portion of the upper bearing due to excessive clamping force of the discharge valve assembly of the hermetic rotary compressor or the discharge load of the refrigerant gas of high temperature and high pressure to prevent the leakage of the cylinder to improve the compression efficiency It has an effect to make.
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| CN103438003A (en) * | 2013-08-19 | 2013-12-11 | 广东美芝制冷设备有限公司 | Rotary compressor and air cylinder thereof |
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| JPH0573276U (en) * | 1991-05-02 | 1993-10-08 | サンデン株式会社 | Structure of the discharge valve opening / closing part in the compressor |
| JPH11201063A (en) * | 1998-01-16 | 1999-07-27 | Zexel:Kk | Vane type compressor |
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2002
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0191084U (en) * | 1987-12-09 | 1989-06-15 | ||
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| JPH0573276U (en) * | 1991-05-02 | 1993-10-08 | サンデン株式会社 | Structure of the discharge valve opening / closing part in the compressor |
| JPH11201063A (en) * | 1998-01-16 | 1999-07-27 | Zexel:Kk | Vane type compressor |
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|---|---|
| KR20030074908A (en) | 2003-09-22 |
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