KR0139225Y1 - Rotary compressor having eccentric parts - Google Patents

Rotary compressor having eccentric parts Download PDF

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Publication number
KR0139225Y1
KR0139225Y1 KR2019960028461U KR19960028461U KR0139225Y1 KR 0139225 Y1 KR0139225 Y1 KR 0139225Y1 KR 2019960028461 U KR2019960028461 U KR 2019960028461U KR 19960028461 U KR19960028461 U KR 19960028461U KR 0139225 Y1 KR0139225 Y1 KR 0139225Y1
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South Korea
Prior art keywords
rotor
center
eccentric
gravity
rotary compressor
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KR2019960028461U
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Korean (ko)
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KR19980015246U (en
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최찬규
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삼성전자주식회사
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Priority to KR2019960028461U priority Critical patent/KR0139225Y1/en
Publication of KR19980015246U publication Critical patent/KR19980015246U/en
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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
    • F04C28/18—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber
    • F04C28/22—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • 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
    • 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
    • F04C2240/40—Electric motor

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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 고안은 회전압축기에 관한 것으로, 더 상세하게는 회전축을 개선하여 제조공정을 단축시키고 원가를 절감시킨 회전압축기에 관한 것이다.The present invention relates to a rotary compressor, and more particularly, to improve the rotary shaft to shorten the manufacturing process and reduce the cost.

본 고안은 흡입관과 토출관이 마련된 밀폐된 케이스, 상기 케이스에 압입된 고정자와 고정자의 내부에 마련된 회전자, 상기 회전자에 일측이 압입되고 타측은 회전자의 외측으로 연장되되,연장된 부위는 무게중심이 편심되게 형성된 회전축, 상기 편심된 회전축 부위가 내장되며 상기 흡입관을 통하여 유입된 냉매가 압축되는 실린더를 구비하는 회전압축기에 있어서,The present invention is a sealed case provided with a suction tube and a discharge tube, a rotor provided inside the stator and the stator pressed into the case, one side is pressed in the rotor and the other side is extended to the outside of the rotor, the extended portion In the rotary compressor having a center of gravity is formed eccentrically, the eccentric rotation shaft portion is built-in and the cylinder is compressed the refrigerant introduced through the suction pipe,

상기 회전자의 내측에 압입된 회전축부위에는 회전축의 중심선을 기준으로 상기 편심부가 이루는 무게중심의 편심방향과 반대방향으로 무게중심이 편심되도록 하기 위한 공간부가 형성된 구성이다.The rotary shaft portion press-fitted into the rotor is configured to have a space portion for the center of gravity in the direction opposite to the eccentric direction of the center of gravity formed by the eccentric portion with respect to the center line of the rotation axis.

Description

회전압축기Rotary compressor

본 고안은 회전압축기에 관한 것으로, 더 상세하게는 회전축을 개선하여 제조공정을 단축시키고 원가를 절감시킨 회전압축기에 관한 것이다.The present invention relates to a rotary compressor, and more particularly, to improve the rotary shaft to shorten the manufacturing process and reduce the cost.

압축기란 냉동사이클을 수행하는 장치에서 압축과정을 수행하기 위해 사용되는 것으로,왕복동압축기와 회전압축기 및 스크롤압축기로 대별된다.Compressor is used to perform the compression process in the apparatus for performing the refrigeration cycle, it is roughly divided into reciprocating compressor, rotary compressor and scroll compressor.

도 1은 일반적인 회전압축기의 구성을 보인 단면도로서 이를 간단히 설명한다. 밀폐된 케이스(10)에 냉매가 유입되는 흡입관(1)과 토출되는 토출관(2)이 마련된다. 그리고 케이스에는 모타(3)가 설치되어 있는데,이 모타는 케이스의 내면에 압입된 고정자(3a)와 고정자(3a)와 일정간격을 가지면서 고정자의 내부에 마련된 회전자(3b) 및 회전자(3b)에 압입된 회전축(3c)을 가진다. 이 회전축(3c)의 일측은 회전자(3b)의 외측으로 돌출되어 있고,돌출된 회전축에는 상,하부플랜지(4a,4b)가 결합된다. 상,하부플랜지(4a,4b)의 내부에는 흡입관(1)을 통하여 공급된 냉매가 유입되어 압축되는 실린더(5)가 내장된다. 미설명부호 6은 냉매가 저장되는 어큐머레이터이고 7은 부시이다.Figure 1 is a cross-sectional view showing a configuration of a general rotary compressor briefly described. In the sealed case 10, a suction pipe 1 through which refrigerant is introduced and a discharge pipe 2 through which the refrigerant is discharged are provided. And the motor (3) is installed in the case, the motor has a fixed interval between the stator (3a) and the stator (3a) pressed into the inner surface of the rotor and the rotor (3b) and the rotor ( It has the rotating shaft 3c pressed in 3b). One side of the rotating shaft 3c protrudes to the outside of the rotor 3b, and the upper and lower flanges 4a and 4b are coupled to the protruded rotating shaft. Inside the upper and lower flanges 4a and 4b, a cylinder 5 into which the refrigerant supplied through the suction pipe 1 flows is compressed. Reference numeral 6 denotes an accumulator in which refrigerant is stored, and 7 denotes a bush.

상기 실린더(5)의 내부에 위치된 회전축은 비대칭형상,즉 무게중심이 편심되어 있고 편심된 회전축 부위에는 부시(7)가 삽입되어 있다. 모타에 의하여 회전축이 회전되면 부시(7)는 중심의 위치가 변하면서 회전운동을 한다. 그러면서 부시는 어쿠머레이터(6)→흡입관(1)을 통하여 실린더 내부로 유입된 냉매를 흡입관측으로 배출되지 못하도록 실린더의 유입공(5a)을 폐쇄함과 동시에 냉매를 압축하여 상부플랜지(4a)에 형성된 토출구(미도시)로 토출되게 하는 것이다. 위와같이 회전축은 그 질량중심이 편심되게 형성되어 있으므로 회전축의 회전시 발생되는 힘의 불균형을 해소하기 위하여 회전자의 하단부에 밸런스 웨이트(Balance Weight)(8)가 마련되어 있다.The rotating shaft located inside the cylinder 5 is asymmetrical, that is, the center of gravity is eccentric, and the bush 7 is inserted into the eccentric rotation shaft. When the rotary shaft is rotated by the motor, the bush 7 is rotated while the position of the center is changed. At the same time, the bush closes the inlet hole 5a of the cylinder so as not to discharge the refrigerant introduced into the cylinder through the accumulator 6 → the suction pipe 1 to the suction pipe side, and simultaneously compresses the refrigerant to form the upper flange 4a. It is to be discharged to the discharge port (not shown) formed in. As described above, since the center of mass of the rotating shaft is eccentrically formed, a balance weight 8 is provided at the lower end of the rotor to solve the imbalance of the force generated when the rotating shaft is rotated.

그러나 상기와 같은 종래의 회전압축기는 회전자에 밸런스웨이트를 부착하는 별도의 공정이 추가되는 단점이 있었다. 또한,밸런스 웨이트가 추가되므로 압축기의 전체 무게도 증가되는 단점이 있었다.However, the conventional rotary compressor as described above has a disadvantage in that an additional process of attaching the balance weight to the rotor is added. In addition, since the balance weight is added, the total weight of the compressor also increases.

본 고안은 상기의 단점을 해소하기 위하여 안출된 것으로, 본 고안의 목적은 일단부의 무게중심이 편심된 회전축의 타단부의 무게중심이 반대방향으로 편심되도록 공간부를 형성하여 일체로 성형하므로서 그 제조공정을 단축할 수 있는 회전압축기를 제공함에 있다.The present invention has been devised to solve the above disadvantages, the object of the present invention is to form a single body by forming a space so that the center of gravity of the other end of the rotary shaft eccentrically eccentric in the opposite direction of the manufacturing process It is to provide a rotary compressor that can shorten.

본 고안의 다른 목적은, 밸런스 웨이트를 부착하는 대신 회전축에 홈이 형성되므로 더욱 더 가볍고, 원가를 절감할 수 있는 회전압축기를 제공함에 있다.Another object of the present invention is to provide a rotary compressor that is lighter and more cost-effective because grooves are formed on the rotating shaft instead of attaching the balance weight.

도 1은 일반적인 회전압축기의 구성을 보인 단면도,1 is a cross-sectional view showing the configuration of a general rotary compressor,

도 2는 본 고안에 따른 회전압축기의 구성을 보인 단면도,Figure 2 is a cross-sectional view showing the configuration of a rotary compressor according to the present invention,

도 3a는 본 고안에 따른 회전축의 정면도.Figure 3a is a front view of a rotating shaft according to the present invention.

도 3b는 본 고안에 따른 회전축을 도 3a의 P방향에서 본 정면도.Figure 3b is a front view of the rotating shaft according to the present invention seen in the P direction of Figure 3a.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

51 : 흡입관 52 : 토출관51: suction pipe 52: discharge pipe

61 : 고정자 62 : 회전자61: stator 62: rotor

63 : 회전축 63a : 편심부63: rotation axis 63a: eccentric portion

66b : 공간부 100 : 케이스66b: space part 100: case

상기 목적을 달성하기 위한 본 고안은, 흡입관과 토출관이 마련된 밀폐된 케이스, 상기 케이스에 압입된 고정자와 고정자의 내부에 마련된 회전자, 상기 회전자에 일측이 압입되고 타측은 회전자의 외측으로 연장되되,연장된 부위는 무게중심이 편심되게 형성된 회전축, 상기 편심된 회전축 부위가 내장되며 상기 흡입관을 통하여 유입된 냉매가 압축되는 실린더를 구비하는 회전압축기에 있어서,The present invention for achieving the above object is a sealed case provided with a suction pipe and a discharge pipe, a rotor provided inside the stator and the stator pressed into the case, one side is pressed into the rotor and the other side is the outside of the rotor In the rotary compressor having an extended portion, the rotating shaft is formed in the center of gravity is eccentric, the eccentric rotary shaft portion is built-in and the refrigerant is compressed through the suction pipe is compressed,

상기 회전자의 내측에 압입된 회전축부위에는 회전축의 중심선을 기준으로 상기 편심부가 이루는 무게중심의 편심방향과 반대방향으로 무게중심이 편심되도록 하기 위한 공간부가 형성된 구성이다.The rotary shaft portion press-fitted into the rotor is configured to have a space portion for the center of gravity in the direction opposite to the eccentric direction of the center of gravity formed by the eccentric portion with respect to the center line of the rotation axis.

이하 첨부한 도면에 의하여 본 고안에 따른 회전압축기의 바람직한 실시예를 상세히 설명한다.Hereinafter, the preferred embodiment of the rotary compressor according to the present invention by the accompanying drawings will be described in detail.

본 고안에 따른 회전압축기는 도 2에 도시하듯이, 밀페된 케이스(100)가 마련된다. 상기 케이스의 하측에는 흡입관(51)이 관통,설치되고,상측에는 토출관(52)이 관통 설치된다. 상기 케이스(100)의 일측에는 냉동사이클의 수행하는 부품인 증발기(미도시)측에서 유입된 냉매가 저장되는 어큐머레이터(70)가 마련되고,상기 어큐머레이터(60)는 흡입관(51)과 연통된다. 그리고 상기 토출관(52)은 냉동사이클을 수행하는 부품중 응축기(미도시)와 연통된다. 상기 케이스(100)의 내부에는 모타(60)가 설치되는데,상기 모타는 케이스의 내면에 압입된 고정자(61)와 상기 고정자의 내부에 마련된 회전자(62)와 상기 회전자에 압입된 회전축(63)을 가진다. 상기 회전축(63)의 일측은 상기 회전자(62)의 하측으로 연장되어 있는데,이 연장부에는 무게중심이 편심된 편심부(63a)가 마련된다. 즉,도 2와 같은 상태에서는 편심부(63a)는 왼측이 더 돌출되어 있고,편심부에는 부시(58)가 삽입된다. 그리고 상기 편심부(63a)의 상하측으로는 상,하부프레임(54a,54b)이 결합되고,상기 상,하부프레임(54a,54b) 사이에는 실린더(55)가 마련된다. 상기 실린더(55) 내부에 상기 회전축의 편심부(63a)가 내장되며,상기 실린더(55)의 일측에는 유입공(55a)이 형성된다. 상기 유입공(55a)은 상기 흡입관(51)과 연통되어 냉매가 실린더 내부로 유입되도록 한다. 미설명부호 57은 오일패들로서 케이스의 하부에 고여있는 오일이 회전축과 프레임 사이에 공급되도록 안내한다.The rotary compressor according to the present invention, as shown in Figure 2, is provided with a sealed case 100. The suction tube 51 penetrates and is installed below the case, and the discharge tube 52 is penetrated and installed above. One side of the case 100 is provided with an accumulator 70 for storing the refrigerant introduced from the evaporator (not shown) side, which is a component of the refrigeration cycle, the accumulator 60 is a suction pipe (51) Communicating with In addition, the discharge pipe 52 is in communication with a condenser (not shown) of the components for performing the refrigeration cycle. The motor 60 is installed inside the case 100, wherein the motor is a stator 61 press-fitted into the inner surface of the case, a rotor 62 provided inside the stator, and a rotation shaft press-fitted into the rotor ( 63). One side of the rotary shaft 63 extends to the lower side of the rotor 62, the extension portion is provided with an eccentric portion 63a, the center of gravity is eccentric. That is, in the state as shown in FIG. 2, the left side of the eccentric portion 63a protrudes further, and the bush 58 is inserted into the eccentric portion. Upper and lower frames 54a and 54b are coupled to upper and lower sides of the eccentric portion 63a, and a cylinder 55 is provided between the upper and lower frames 54a and 54b. An eccentric portion 63a of the rotating shaft is embedded in the cylinder 55, and an inflow hole 55a is formed at one side of the cylinder 55. The inflow hole 55a communicates with the suction pipe 51 to allow the refrigerant to flow into the cylinder. Reference numeral 57 is an oil paddle which guides oil accumulated in the lower part of the case to be supplied between the rotating shaft and the frame.

본 고안에 따른 회전압축기의 회전축은 무게중심이 편심된 편심부가 있으므로 회전시 힘의 불균형이 발생한다. 이를 해소하기 위하여 회전자에 압입된 부위도 무게중심이 편심되게 마련되어 있다. 도 3을 참조하여 상세히 설명하면,회전축의 편심부(63a)는 왼측이 더 돌출되어 있으므로 무게중심은 회전축의 중심선(D)에서 왼측에 존재한다. 그러므로 회전축이 모타에 의하여 회전되면 힘의 불균형으로 인하여 심하게 진동하게 된다. 이를 해소하기 위하여 상기 회전자(62)에 압입된 부위중 왼측부위,즉 편심부중 돌출이 많이된 측에 키이홈과 같은 공간부(63b)를 형성한다. 그러면 회전자에 압입된 회전축부위의 무게중심은 회전축의 중심선(D)에서 오른측에 존재하게 된다. 즉,회전축의 상측은 그 무게중심이 회전축의 중심선에서 오른쪽 존재하고 하측은 회전축의 중심선에서 왼쪽에 존재하므로 회전축 전체의 무게중심은 중심선에 존재하게되는 것이다. 그러므로 회전축이 회전되어도 힘의 불균형은 없으므로 회전축은 진동되지 않는 것이다. 그리고 위와같은 형상의 회전축을 주물로 성형하여 제조한다.The rotary shaft of the rotary compressor according to the present invention has an eccentric portion with an eccentric center of gravity, thereby causing an imbalance in force during rotation. In order to solve this problem, the center of gravity of the pressed part of the rotor is also provided eccentrically. 3, the eccentric portion 63a of the rotating shaft is further protruded from the left side, and thus the center of gravity exists on the left side of the center line D of the rotating shaft. Therefore, when the rotating shaft is rotated by the motor vibrates severely due to the imbalance of force. In order to solve this problem, a space portion 63b, such as a key groove, is formed on the left side of the portion pushed into the rotor 62, that is, the protruded side of the eccentric portion. Then, the center of gravity of the rotating shaft portion pressed into the rotor is present on the right side from the center line (D) of the rotating shaft. That is, since the center of gravity of the rotary shaft is located on the right side of the center line of the axis of rotation and the lower side of the rotary axis is located on the left side of the center line of the axis of rotation, the center of gravity of the entire shaft is present in the center line. Therefore, there is no force imbalance even if the rotating shaft is rotated, so the rotating shaft does not vibrate. And it is manufactured by molding the rotating shaft of the above shape into a casting.

상기 구조로 된 본 고안에 따른 회전압축기의 작용을 간단히 설명한다.The operation of the rotary compressor according to the present invention having the above structure will be described briefly.

모타(60)로 전류가 공급되면 회전축(63)이 회전되는데, 회전축의 편심부(63a)가 도 2와 같은 상태이면 어큐머레이터(60)→흡입관(51)→유입공(55a)을 통하여 실린더(55)로 냉매가 유입된다. 이후,회전축이 회전되면 회전축의 편심부중 많이 돌출된 부위와 접촉된 부시(58)가 유입공(55a)측으로 접근하게 된다. 그러면 유입공은 서서히 폐쇄되고,유입공이 완전히 폐쇄되면 실린더 내부에 있는 냉매는 압축되어 상부플랜지(54a)에 형성된 배출공(미도시)을 통하여 배출되는 것이다.When the current is supplied to the motor 60, the rotating shaft 63 is rotated. When the eccentric portion 63a of the rotating shaft is in the state as shown in FIG. 2, the accumulator 60 → the suction pipe 51 → the inlet hole 55a. The refrigerant flows into the cylinder 55. Thereafter, when the rotating shaft is rotated, the bush 58 in contact with the protruding portion of the eccentric portion of the rotating shaft approaches the inlet hole 55a. Then, the inlet hole is closed slowly, and when the inlet hole is completely closed, the refrigerant in the cylinder is compressed and discharged through the discharge hole (not shown) formed in the upper flange 54a.

본 고안에 따른 회전축은 상측의 무게중심의 위치와 하측의 무게중심의 위치는 회전축의 중심선을 기준으로 반대방향에 존재하므로 회전시 힘의 불균형이 발생되지 않는 것이다.In the rotary shaft according to the present invention, since the position of the center of gravity of the upper side and the position of the center of gravity of the lower side exist in opposite directions with respect to the center line of the rotation axis, there is no force imbalance during rotation.

이상에서 설명하듯이 본 고안에 따른 회전압축기는, 회전축의 상부와 하부의 무게중심이 편심되어 있고, 그 방향은 회전축의 중심선에서 서로 반대방향이 되도록 하여 주물로 제작함으로서 그 제조공정이 단축된 특징이 제공함에 있다. 또한,밸런스 웨이트가 제거되고 회전축의 무게도 감소되므로 더욱 더 가벼운 특징이 있고 원가가 절감된 특징이 있다.As described above, the rotary compressor according to the present invention has an eccentric center of gravity of the upper and lower parts of the rotating shaft, and the manufacturing process is shortened by manufacturing the castings so that their directions are opposite to each other at the center line of the rotating shaft. In this offering. In addition, since the balance weight is removed and the weight of the rotating shaft is reduced, there is a lighter feature and a cost reduction feature.

Claims (1)

흡입관(51)과 토출관(52)이 마련된 밀폐된 케이스(100), 상기 케이스(100)에 압입된 고정자(61)와 고정자(61)의 내부에 마련된 회전자(62), 상기 회전자(62)에 일측이 압입되고 타측은 회전자의 외측으로 연장되되,연장된 부위는 무게중심이 편심(63a)되게 형성된 회전축(63), 상기 편심된 회전축 부위가 내장되며 상기 흡입관(51)을 통하여 유입된 냉매가 압축되는 실린더(55)를 구비하는 회전압축기에 있어서,A sealed case 100 provided with a suction pipe 51 and a discharge pipe 52, a stator 61 press-fitted into the case 100, a rotor 62 provided inside the stator 61, and the rotor ( 62) one side is press-fitted and the other side is extended to the outside of the rotor, the extended portion is the rotating shaft 63 formed so that the center of gravity is eccentric (63a), the eccentric rotary shaft portion is built-in and through the suction pipe 51 In the rotary compressor having a cylinder 55 in which the introduced refrigerant is compressed, 상기 회전자(62)의 내측에 압입된 회전축부위에는 회전축의 중심선(D)을 기준으로 상기 편심부(63a)가 이루는 무게중심의 편심방향과 반대방향으로 무게중심이 편심되도록 하기 위한 공간부(63b)가 형성된 것을 특징으로 하는 회전압축기.The rotary shaft portion pressed into the rotor 62 has a space for allowing the center of gravity to be eccentric in a direction opposite to the eccentric direction of the center of gravity formed by the eccentric portion 63a based on the center line D of the rotary shaft ( 63b) is a rotary compressor, characterized in that formed.
KR2019960028461U 1996-09-06 1996-09-06 Rotary compressor having eccentric parts KR0139225Y1 (en)

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