KR100365002B1 - Saftety apparatus for scroll compressor - Google Patents
Saftety apparatus for scroll compressor Download PDFInfo
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- KR100365002B1 KR100365002B1 KR1020000061853A KR20000061853A KR100365002B1 KR 100365002 B1 KR100365002 B1 KR 100365002B1 KR 1020000061853 A KR1020000061853 A KR 1020000061853A KR 20000061853 A KR20000061853 A KR 20000061853A KR 100365002 B1 KR100365002 B1 KR 100365002B1
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- high pressure
- low pressure
- scroll compressor
- refrigerant
- sliding
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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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0253—Details concerning the base
- F04C18/0261—Details of the ports, e.g. location, number, geometry
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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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
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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
- F04C29/0021—Systems for the equilibration of forces acting on the pump
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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
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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
- F04C2240/807—Balance weight, counterweight
Abstract
본 발명 스크롤 압축기의 안전장치는 고정 스크롤(4)의 내부에 슬라이딩 유로(12)를 형성하고, 그 슬라이딩 유로(12)의 내부에 제1/2 밸런스 매스(13)(14)와 제1/2/3 스프링(15)(15')(15")을 배치하며, 상기 슬라이딩 유로(12)와 고압부(5)가 연통되는 제1/2 고압냉매 유입공(16)(17)과 저압부(5')가 연통되는 제1/2 고압냉매 배출공(20)(21)을 형성하여, 저압부(5')의 진공발생시 제1 고압냉매 유입공(16)을 통하여 슬라이딩 유로(12)로 유입된 냉매가 제1 고압냉매 배출공(20)을 통하여 저압부(5')로 유입되도록 하고, 고압부(5)의 이상고압발생시 제1/2 고압냉매 유입공(16)(17)을 통하여 슬라이딩 유로(12)로 유입된 냉매가 제1/2 고압냉매 배출공(20)(21)을 통하여 저압부(5')로 유입되도록 하여, 1곳에 설치된 1개의 안전 장치로서 압축기의 급작스런 진공발생 및 이상고압축 발생시 부품의 소손을 방지하게 된다.The safety device of the scroll compressor of the present invention forms a sliding passage 12 in the fixed scroll 4, and the first and second balance masses 13 and 14 in the sliding passage 12. 2/3 springs 15, 15 'and 15 "are disposed, and the first and second high pressure refrigerant inlet holes 16 and 17 and the low pressure part, in which the sliding flow path 12 and the high pressure part 5 communicate with each other. The first and second high pressure refrigerant discharge holes 20 and 21 communicating with the 5 'are formed to form a sliding passage 12 through the first high pressure refrigerant inlet hole 16 when the low pressure portion 5' is vacuumed. Refrigerant introduced into the low pressure portion (5 ') through the first high-pressure refrigerant discharge hole 20 is introduced, and when the abnormal high pressure of the high-pressure portion (5) occurs the first half of the high pressure refrigerant inlet (16) (17) The refrigerant flowing into the sliding passage 12 through the first and second high pressure refrigerant discharge holes 20 and 21 is introduced into the low pressure portion 5 ', and a sudden vacuum of the compressor is provided as one safety device installed at one place. Components in case of high pressure or abnormal compression Thereby preventing the seizure.
Description
본 발명은 스크롤 압축기의 안전장치에 관한 것으로, 보다 상세하게는 간단한 구조로 고진공발생과 이상고압축발생시에 압축기의 파손을 방지하도록 하는데 적합한 스크롤 압축기의 안전장치에 관한 것이다.The present invention relates to a safety device of a scroll compressor, and more particularly, to a safety device of a scroll compressor suitable for preventing damage to the compressor during high vacuum generation and abnormal high compression with a simple structure.
종래의 스크롤 압축기가 도 1에 도시되어 있는 바, 이를 간단히 설명하면 다음과 같다.A conventional scroll compressor is shown in FIG. 1, which is briefly described as follows.
도시된 바와 같이, 종래의 스크롤 압축기는 밀폐 용기(1)의 내측에 전동기(2)가 구비되어 있고, 그 전동기(2)의 회전자에 회전축(2)이 압입되어 있으며, 그 회전축(2)의 상단부에는 선회 스크롤(3)이 결합되어 있다.As shown, the conventional scroll compressor is provided with an electric motor 2 inside the sealed container 1, the rotary shaft 2 is pressed into the rotor of the electric motor 2, the rotary shaft 2 At the top of the pivoting scroll 3 is coupled.
그리고, 선회 스크롤(3)의 상측에는 고정 스크롤(4)이 결합되어 있고, 그 고정 스크롤(4)의 외측에는 고압부(5)와 저압부(5')를 분리하는 고저압분리판(6)이 고정되어 있으며, 상기 밀폐 용기(1)의 외측에는 상기 고/저압부(5)(5')에 연통되도록 토출관(7)과 흡입관(7')이 각각 연결되어 있다.The fixed scroll 4 is coupled to the upper side of the turning scroll 3, and the high and low pressure separator 6 separates the high pressure part 5 and the low pressure part 5 ′ from the outside of the fixed scroll 4. The discharge vessel 7 and the suction tube 7 'are connected to the outer side of the sealed container 1 so as to communicate with the high / low pressure portions 5 and 5'.
또한, 상기 고정 스크롤(4)에는 저압부(5')에 고진공이 발생시에 고압부(5)의 냉매가 저압부(5')로 바이 패스되도록 고진공방지장치(8)가 설치되어 있고, 상기 고저압분리판(6)에는 고압부(5)에 이상고압축이 발생시에 저압부(5')로 고압의 일부가 바이 패스 되도록 이상고압축방지장치(9)가 설치되어 있다.In addition, the fixed scroll 4 is provided with a high vacuum prevention device 8 such that the refrigerant of the high pressure section 5 is bypassed to the low pressure section 5 'when high vacuum occurs in the low pressure section 5'. The abnormal high compression prevention device 9 is provided in the low pressure separator 6 so that a part of the high pressure is bypassed to the low pressure part 5 'when abnormal high compression occurs in the high pressure part 5.
상기와 같이 구성되어 있는 종래의 스크롤 압축기는 정상 상태에서는흡입관(7')을 통하여 저압부(5')로 흡입된 냉매가 회전하는 선회 스크롤(3)에 의하여 고압으로 압축이 되어 고압부(5)로 토출이 되고, 그와 같이 고압부(5)로 토출된 고압의 냉매는 토출관(7)을 통하여 다시 토출되어 진다.The conventional scroll compressor configured as described above is compressed to a high pressure by a rotating scroll (3) in which the refrigerant sucked into the low pressure portion (5 ') through the suction pipe (7') in the normal state is compressed to a high pressure portion (5). The high pressure refrigerant discharged to the high pressure section 5 is discharged again through the discharge pipe 7.
그리고, 서비스 밸브가 닫힌 상태로 압축기를 구동하거나 다른 이유로 라인이 막힌 상태에서 압축기를 구동하는 경우에는 저압부(5')로 냉매가 지속적으록 공급되지 않게 되어 고진공이 발생되는데, 이때 고진공방지장치(8)가 작동을 하여 저압부(5')가 고진공이 되는 것을 방지하게 된다.When the compressor is driven while the service valve is closed or the line is blocked for other reasons, the refrigerant is not continuously supplied to the low pressure part 5 'so that high vacuum is generated. 8) is operated to prevent the low pressure portion 5 'to be a high vacuum.
또한, 열교환기의 이상으로 고온의 냉매가 압축기로 유입되어 압축이 되는 경우에 부피의 팽창으로 고압부(5)의 이상고압축이 발생되는데, 이때는 이상고압축방지장치(9)에 의해서 고압부(5)의 고압을 바이 패스하여 장비의 파손을 방지하게 된다.In addition, when the high temperature refrigerant flows into the compressor and becomes compressed due to an abnormality of the heat exchanger, abnormal high compression of the high pressure part 5 occurs due to expansion of the volume. In this case, the abnormal high compression prevention device 9 Bypass the high pressure to prevent damage to the equipment.
그러나, 상기와 같은 종래의 스크롤 압축기에서는 고진공방지장치(8)와 이상고압방지장치(9)가 각각 별도로 설치되어 있어서 조립공수의 절감에 따른 생산성향상에 한계가 있는 문제점이 있었다.However, in the conventional scroll compressor as described above, since the high vacuum prevention device 8 and the abnormal high pressure prevention device 9 are separately installed, there is a problem in that there is a limit in productivity improvement due to the reduction of the assembly labor.
상기와 같은 문제점을 감안하여 안출한 본 발명의 목적은 고진공방지장치와 이상고압방지장치를 하나의 장치로 구성하여 1곳에 설치함으로써 압축기의 제조시 조립공수를 절감하도록 하는데 적합한 스크롤 압축기의 안전장치를 제공함에 있다.The object of the present invention devised in view of the above problems is to provide a safety device of a scroll compressor suitable for reducing the assembly labor during the manufacture of the compressor by installing a high vacuum prevention device and an abnormal high pressure prevention device as a single device in one place In providing.
도 1은 종래 스크롤 압축기의 구조를 보인 종단면도.1 is a longitudinal sectional view showing a structure of a conventional scroll compressor.
도 2는 본 발명 스크롤 압축기의 안전장치를 보인 부분단면도.Figure 2 is a partial sectional view showing a safety device of the scroll compressor of the present invention.
도 3은 본 발명의 동작을 보인 단면도.3 is a cross-sectional view showing the operation of the present invention.
도 3a는 압축기의 정상운전상태.Figure 3a is a normal operating state of the compressor.
도 3b는 압축기의 고진공발생상태.Figure 3b is a high vacuum generation state of the compressor.
도 3c는 압축기의 이상고압축발생상태.Figure 3c is an abnormal high compression generation state of the compressor.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
4 : 고정 스크롤 5 : 고압부4: fixed scroll 5: high voltage part
5' : 저압부 12 : 슬라이딩 유로5 ': low pressure part 12: sliding flow path
13 : 제1 밸런스 매스 14 : 제2 밸런스 매스13: first balance mass 14: second balance mass
15,15',15" : 제1/2/3 스프링 16 : 제1 고압냉매 유입공15,15 ', 15 ": 1/2/3 spring 16: 1st high pressure refrigerant inlet hole
17 : 제2 고압냉매 유입공 18 : 중간압 유입공17: second high pressure refrigerant inlet 18: medium pressure inlet
19 : 바이-패스 홀 20 : 제1 고압냉매 배출공19: bypass hole 20: the first high-pressure refrigerant discharge hole
21 : 제2 고압냉매 배출공21: second high-pressure refrigerant discharge hole
상기와 같은 본 발명의 목적을 달성하기 위하여 고정 스크롤의 외측에 고정된 고저압 분리판에 의하여 고압부와 저압부로 분리되는 스크롤 압축기에 있어서, 상기 고정 스크롤의 내부에 일정크기의 직경과 길이를 갖는 슬라이딩 유로를 형성하고, 그 슬라이딩 유로의 내측에 제1/2 밸런스 매스를 일정간격을 두고 슬라이딩가능하게 배치하며, 그 제1/2 밸런스 매스의 후방과 사이에 제1/2 밸런스 매스를 탄지하도록 코일 스프링을 설치하고, 상기 슬라이딩 유로의 상측으로는 고압부에 연통되는 제1/2 고압냉매 유입공을 일정간격을 두고 형성하고, 하측으로는 중간압부에 연통되는 중간압 유입공과 저압부에 연통되는 바이패스 홀에 연결되는 제1/2 고압냉매 배출공이 일정간격을 두고 형성되어 저압부의 고진공발생시 또는 고압부의 이상고압발생시 슬라이딩 유로를 통하여 고압부의 냉매가 저압부로 바이 패스 되도록 한 것을 특징으로 하는 스크롤 압축기의 안전장치가 제공된다.In order to achieve the object of the present invention as described above, in the scroll compressor is separated into a high pressure portion and a low pressure portion by a high and low pressure separating plate fixed to the outside of the fixed scroll, the fixed scroll has a diameter and length of a predetermined size inside the scroll. A flow path is formed, and the 1/2 balance mass is slidably disposed at a predetermined interval inside the sliding flow path, and the coil is supported so as to support the 1/2 balance mass between the rear of the 1/2 balance mass and the back. The spring is installed, and the first and second high pressure refrigerant inlet holes communicating with the high pressure part are formed at a predetermined interval on the upper side of the sliding flow path, and the middle pressure inlet hole communicating with the middle pressure part and the low pressure part are connected to the lower part. The first and second high pressure refrigerant discharge holes connected to the pass holes are formed at regular intervals so that the high pressure portion of the low pressure portion or the abnormal high pressure portion of the high pressure portion is formed. The safety device of the scroll compressor so that a bypass of high pressure refrigerant to the low-pressure portion through the guiding flow path, characterized in, is provided.
이하, 상기와 같이 구성되는 본 발명 스크롤 압축기의 안전장치를 첨부된 도면의 실시예를 참고하여 보다 상세히 설명하면 다음과 같다.Hereinafter, with reference to the embodiment of the accompanying drawings, the safety device of the present invention scroll compressor configured as described above in detail as follows.
도시된 바와 같이, 본 발명 스크롤 압축기의 안전장치는 고정 스크롤(4)의 상면 일측에 설치된 고저압 분리판(6)에 의하여 고압부(5)와 저압부(5')로 분리되어 있는 스크롤 압축기에서 고정 스크롤(4)의 내부에 일정 직경과 길이를 갖는 원형의 슬라이딩 유로(12)가 가로 방향으로 형성되어 있다.As shown, the safety device of the scroll compressor of the present invention is a scroll compressor which is separated into a high pressure part 5 and a low pressure part 5 'by a high and low pressure separator 6 installed on one side of the upper surface of the fixed scroll 4. Inside the fixed scroll 4, a circular sliding passage 12 having a predetermined diameter and length is formed in the horizontal direction.
그와 같이 형성된 상기 슬라이딩 유로(12)의 내측에는 밀착된 상태로 슬라이딩 가능하도록 원통체의 제1 밸런스 매스(13)와 제2 밸런스 매스(14)가 일정간격으로 삽입되어 있고, 그 제1/2 밸런스 매스(13)(14)의 후방과 사이에는 각각 제1/2/3 스프링(15)(15')(15")이 설치되어 제1 밸런스 매스(13)와 제2 밸런스 매스(14)를탄력지지하도록 되어 있다.The first balance mass 13 and the second balance mass 14 of the cylindrical body are inserted at predetermined intervals so as to be able to slide in close contact with the inside of the sliding flow path 12 formed as described above. First and second springs 15, 15 'and 15 "are respectively provided between the rear and the balance masses 13 and 14, so that the first balance mass 13 and the second balance mass 14 are respectively provided. ) Is designed to support elasticity.
또한, 상기 슬라이딩 유로(12)의 상측으로는 고압부(5)에 연통되는 제1 고압냉매 유입공(16)과 제2 고압냉매 유입공(17)이 일정간격을 두고 형성되어 있고, 하측으로는 중간압부에 연통되는 중간압 유입공(18)과 저압부(5')에 연통되는 바이-패스 홀(19)에 연결되어 있는 제1 고압냉매 배출공(20)과 제2 고압냉매 배출공(21)이 일정간격을 두고 형성되어 있다.In addition, a first high pressure refrigerant inlet hole 16 and a second high pressure refrigerant inlet hole 17 communicating with the high pressure unit 5 are formed at an upper side of the sliding passage 12 at a predetermined interval. The first high pressure refrigerant discharge hole 20 and the second high pressure refrigerant discharge hole connected to the intermediate pressure inlet hole 18 communicating with the intermediate pressure part and the bypass hole 19 communicating with the low pressure part 5 '( 21) are formed at regular intervals.
상기와 같이 구성되어 있는 본 발명 스크롤 압축기에서 안전장치의 동작을 도 3을 참조하여 설명한다.The operation of the safety device in the scroll compressor of the present invention configured as described above will be described with reference to FIG.
도 3a는 정상운전상태를 보인 것으로, 저압부(5')로 흡입되는 흡입압은 약3~6 kgfG 정도이고, 이때 중간압 유입홀(18)을 통하여 작용하는 중간압(Pm)에 의하여 제1 밸런스 매스(13)는 제2 스프링(15') 방향으로 이동하고, 이와 같이 이동하는 제1 밸런스 매스(13)에 의하여 제1 고압냉매 유입공(16)과 제1 고압냉매 배출공(20)이 막힌 상태가 되므로 고압부(13)와 저압부(5') 사이의 냉매 이동이 발생되지 않는다.Figure 3a shows a normal operation state, the suction pressure sucked into the low pressure portion (5 ') is about 3 ~ 6 kgfG, at this time by the intermediate pressure (Pm) acting through the intermediate pressure inlet hole (18) The first balance mass 13 moves in the direction of the second spring 15 ′, and the first high pressure refrigerant inlet 16 and the first high pressure refrigerant outlet 20 are moved by the first balance mass 13 moving in this way. ) Is clogged so that the refrigerant does not move between the high pressure section 13 and the low pressure section 5 '.
또한, 제2 밸런스 매스(14)는 제3 스프링(15")의 스프링력에 의하여 제3 스프링(15") 방향으로 이동하는 것이 제한을 받으며 제2 고압냉매 배출공(21)을 막게 되므로 역시 고압부(5)와 저압부(5') 사이의 냉매 이동이 발생되지 않는다.In addition, since the second balance mass 14 is restricted from moving in the direction of the third spring 15 "by the spring force of the third spring 15", the second balance mass 14 blocks the second high-pressure refrigerant discharge hole 21. No refrigerant movement between the high pressure section 5 and the low pressure section 5 'occurs.
도 3b는 압축기에 고진공발생시를 보인 것으로, 서비스 밸브(미도시)를 닫은 상태로 압축기를 동작시키는 경우에는 압축기의 저압부(5')로 냉매가 유입되지 않기 때문에 저압부(5')의 압력이 낮아지고, 따라서 중간압 유입공(18)을 통하여 작용하는 중간압(Pm)이 약해져서 제1 밸런스 매스(13)는 제2,3 스프링(15')(15")의 힘에 의해 제1 스프링(15)측으로 밀리게 되고, 어느 정도 밀린 상태에서 제1 스프링(15)의 탄지되는 힘에 의하여 멈추게 되는데, 이때 고압부(5)의 냉매는 제1 고압냉매 유입공(16)을 통하여 슬라이딩 유로(12)로 유입되고, 슬라이딩 유로(12)로 유입된 냉매는 제1 고압냉매 배출공(20)과 바이-패스 홀(19)을 통하여 저압부(5')로 역류하여 고진공의 발생이 방지되므로, 급작스런 고진공 발생에 의한 전동기의 쇼트 등을 방지된다.3B shows a high vacuum occurring in the compressor. When the compressor is operated with the service valve (not shown) closed, the pressure of the low pressure portion 5 'is not introduced into the low pressure portion 5' of the compressor. Is lowered, and thus the intermediate pressure Pm acting through the intermediate pressure inlet hole 18 is weakened, so that the first balance mass 13 is driven by the force of the second and third springs 15 'and 15 ". It is pushed toward the spring 15 side, and stopped by the force of the first spring 15 in a state of being pushed to some extent, wherein the refrigerant of the high pressure portion 5 is a sliding flow path through the first high pressure refrigerant inlet hole 16. The refrigerant flowing into the sliding passage 12 and flowing into the sliding passage 12 flows back into the low pressure portion 5 ′ through the first high pressure refrigerant discharge hole 20 and the bypass hole 19 to prevent the occurrence of high vacuum. This prevents short circuits of the motor due to sudden high vacuum generation.
도 3c는 이상고압발생시를 보인 것으로, 고압부(5)의 압력이 증가하면 제2 고압냉매 유입공(16)을 통하여 슬라이딩 유로(12)에 고압의 냉매가 유입되며 제2 밸런스 매스(14)를 제2 스프링(15')측으로 밀게 되고, 그로 인해 제1 밸런스 매스(13)는 제1 스프링측(15)으로 밀리게 되며, 제1 고압냉매 유입공(16)과 제2 고압냉매 유입공(17)을 통하여 슬라이딩 유로(12)에 유입된 고압의 냉매는 제1 고압냉매 배출공(20)과 제2 고압냉매 배출공(21)과 바이-패스 홀(19)을 통하여 저압부(5')로 유입되므로 급작스런 이상고압에 의한 압축기의 파손을 방지하게 된다.3c shows the occurrence of abnormal high pressure. When the pressure of the high pressure part 5 increases, the high pressure refrigerant flows into the sliding passage 12 through the second high pressure refrigerant inlet 16 and the second balance mass 14 is removed. The second spring 15 ′ is pushed toward the second spring 15 ′, and thus, the first balance mass 13 is pushed toward the first spring side 15, and the first high pressure refrigerant inlet hole 16 and the second high pressure refrigerant inlet hole ( The high pressure refrigerant introduced into the sliding passage 12 through the low pressure portion 5 'is provided through the first high pressure refrigerant discharge hole 20, the second high pressure refrigerant discharge hole 21, and the bypass hole 19. As it flows into), it prevents the compressor from being damaged by sudden abnormal high pressure.
종래와 동일한 부분에 대하여는 동일부호를 부여하였다.The same code | symbol is attached | subjected about the same part as before.
이상에서 상세히 설명한 바와 같이, 본 발명 스크롤 압축기의 안전장치는 고정 스크롤의 내부에 슬라이딩 유로를 형성하고, 그 슬라이딩 유로의 내부에 제1/2 밸런스 매스와 제1/2/3 스프링을 배치하며, 상기 슬라이딩 유로와 고압부가 연통되는 제1/2 고압냉매 유입공과 저압부가 연통되는 제1/2 고압냉매 배출공을 형성하여, 저압부의 진공발생시 제1 고압냉매 유입공을 통하여 슬라이딩 유로로 유입된 냉매가 제1 고압냉매 배출공을 통하여 저압부로 유입되도록 하고, 고압부의 이상고압발생시 제1/2 고압냉매 유입공을 통하여 슬라이딩 유로로 유입된 냉매가 제1/2 고압냉매 배출공을 통하여 저압부로 유입되도록 하여, 1곳에 설치된 1개의 안전 장치로서 압축기의 급작스런 진공발생 및 이상고압축 발생시 부품의 소손을 방지하는 효과가 있다.As described above in detail, the safety device of the scroll compressor of the present invention forms a sliding flow path inside the fixed scroll, and arranges the 1/2 balance mass and the 1/2/3 spring inside the sliding flow path, The first and second high pressure refrigerant inlet holes in which the sliding passage communicates with the high pressure part and the first and second high pressure refrigerant outlet holes in communication with the low pressure portion are formed. Is introduced into the low pressure portion through the first high pressure refrigerant discharge hole, and when an abnormal high pressure occurs in the high pressure portion, the refrigerant introduced into the sliding passage through the 1/2 high pressure refrigerant inlet hole flows into the low pressure portion through the 1/2 high pressure refrigerant discharge hole. As a safety device installed in one place, it is effective to prevent burnout of components during sudden vacuum generation and abnormal high compression of the compressor.
Claims (2)
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| KR1020000061853A KR100365002B1 (en) | 2000-10-20 | 2000-10-20 | Saftety apparatus for scroll compressor |
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| KR1020000061853A KR100365002B1 (en) | 2000-10-20 | 2000-10-20 | Saftety apparatus for scroll compressor |
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| KR100365002B1 true KR100365002B1 (en) | 2002-12-16 |
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| US7189067B2 (en) * | 2004-09-10 | 2007-03-13 | Lg Electronics Inc. | Scroll compressor having vacuum preventing structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727064A (en) * | 1993-07-05 | 1995-01-27 | Toshiba Corp | Scroll type compressor |
| JP2000087882A (en) * | 1998-09-11 | 2000-03-28 | Sanden Corp | Scroll type compressor |
| JP2000104684A (en) * | 1998-09-29 | 2000-04-11 | Nippon Soken Inc | Variable displacement compressor |
| KR20000050610A (en) * | 1999-01-12 | 2000-08-05 | 구자홍 | Device Protecting of Comperssor |
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2000
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727064A (en) * | 1993-07-05 | 1995-01-27 | Toshiba Corp | Scroll type compressor |
| JP2000087882A (en) * | 1998-09-11 | 2000-03-28 | Sanden Corp | Scroll type compressor |
| JP2000104684A (en) * | 1998-09-29 | 2000-04-11 | Nippon Soken Inc | Variable displacement compressor |
| KR20000050610A (en) * | 1999-01-12 | 2000-08-05 | 구자홍 | Device Protecting of Comperssor |
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