KR20000050526A - cylinder consolidation assembly of rotary compressor - Google Patents

cylinder consolidation assembly of rotary compressor Download PDF

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Publication number
KR20000050526A
KR20000050526A KR1019990000475A KR19990000475A KR20000050526A KR 20000050526 A KR20000050526 A KR 20000050526A KR 1019990000475 A KR1019990000475 A KR 1019990000475A KR 19990000475 A KR19990000475 A KR 19990000475A KR 20000050526 A KR20000050526 A KR 20000050526A
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KR
South Korea
Prior art keywords
cylinder
shell
rotary compressor
ring
rotor
Prior art date
Application number
KR1019990000475A
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Korean (ko)
Inventor
이병찬
Original Assignee
구자홍
엘지전자 주식회사
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Priority to KR1019990000475A priority Critical patent/KR20000050526A/en
Publication of KR20000050526A publication Critical patent/KR20000050526A/en

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Classifications

    • 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
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F04C2230/231—Manufacture essentially without removing material by permanently joining parts together by welding
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/604—Mounting devices for pumps or compressors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE: A structure for combining a cylinder of a rotary compressor is provided to decrease heat transformation of a cylinder and a shell generated in the manufacturing process of the compressor by improving the welding combination between the cylinder and the shell, thereby decreasing the noise radiated in the inside of the shell. CONSTITUTION: A rotary compressor having a rotor and a stator in a hermetic container, a shaft eccentrically rotating with the rotor, a roller slidably moving with the shaft for rotating, a cylinder(9) forming a compressing room for refrigerant to be compressed by free moving of the roller, and a shell(1) formed in the outer periphery of the cylinder, a structure for combining the cylinder of the rotary compressor includes a cylinder ring(18) combined in the inner periphery of the shell following the outer periphery of the cylinder.

Description

로터리압축기의 실린더 결합구조{cylinder consolidation assembly of rotary compressor}Cylinder consolidation assembly of rotary compressor

본 발명은 냉매압축기의 일종인 로터리 압축기에 관한 것으로서, 더욱 상세하게는 압축기의 제조공정 중 실린더와 쉘의 결합구조에 관한 것이다.The present invention relates to a rotary compressor, which is a kind of refrigerant compressor, and more particularly, to a coupling structure of a cylinder and a shell during a manufacturing process of the compressor.

일반적으로, 로터리 압축기는 원심력에 의하지 않고 실린더 내의 회전자를 회전시켜 냉매를 압축시키는 것으로, 크랭크축의 하부에 장착된 편심 롤러가 크랭크축의 회전에 연동하여 실린더의 내주면을 따라 공전 및 자전하는 운동에 의해 냉매를 흡입, 압축하는 기기임은 주지된 사실이다.In general, a rotary compressor compresses a refrigerant by rotating a rotor in a cylinder without centrifugal force. An eccentric roller mounted at a lower part of the crankshaft rotates and rotates along an inner circumferential surface of the cylinder in conjunction with rotation of the crankshaft. It is well known that the apparatus sucks and compresses the refrigerant.

이러한 로터리 압축기로 도 1과 같은 장치가 있다.Such a rotary compressor is a device as shown in FIG.

도 1에 제시된 장치를 종래의 기술에 따른 로터리 압축기의 한 예로서 설명한다.The apparatus shown in FIG. 1 is described as an example of a rotary compressor according to the prior art.

상기 로터리 압축기는 소정의 내부용적을 갖는 밀폐용기가 쉘(1), 상부덮게(2), 하부덮게(3)의 세부분으로 구성되어 있으며 이 세부분은 용접으로 연결되어 있다. 이 밀폐용기 내부에는 쉘(1) 내측면에 열박음 된 고정자(4)와 영구자석으로 된 회전자(5)로 구성되는 전동기구부가 설치되어 있고, 회전자(5) 내경에 열박음된 회전축(6)의 편심부(7)에는 로울러(8)가 삽입되어 실린더(9)의 내경을 접하면서 자전 및 공전을 하게되어 있고, 실린더(9)와 쉘(1)이 A지점에서 용접으로 연결되어 있으며, 실린더(9) 내부의 압축실(10)을 고압부와 저압부로 분리하며 직선운동하는 베인(11)이 있다.In the rotary compressor, a sealed container having a predetermined internal volume is composed of subdivisions of a shell (1), an upper cover (2), and a lower cover (3), which are connected by welding. Inside the hermetic container, an electric mechanism part including a stator (4) constricted on the inner surface of the shell (1) and a rotor (5) made of permanent magnets is provided, and a rotating shaft constricted on the inner diameter of the rotor (5). The roller (8) is inserted into the eccentric portion (6) to rotate and revolve while contacting the inner diameter of the cylinder (9), and the cylinder (9) and the shell (1) are connected by welding at the A point. There is a vane 11 which linearly moves the compression chamber 10 inside the cylinder 9 into a high pressure part and a low pressure part.

이와 같이 구성된 상태에서의 압축기 작동과정을 도2를 포함하여 살펴보기로 한다.The operation of the compressor in the state configured as described above will be described with reference to FIG. 2.

먼저, 전원이 인가되어 고정자(4)가 자화되면 고정자(4)와 회전자(5) 사이에 상호 유도작용이 발생되어 회전자(5) 및 회전축(6)이 회전하게 되면, 로울러(8)가 베인(11)에 접촉된 상태에서 실린더(9) 내부에서 편심 회전하게 되고, 로울러(8)의 편심회전에 의한 체적변화로 저온 저압의 냉매가스가 흡입구(12)를 통해 실린더(9) 내부로 흡입되어 고온고압의 상태로 압축되며, 압축된 냉매가스는 토출구(13)를 통해 실린더(9) 외부에 부착된 머플러(14)로 가며 이는 밀폐용기 내부를 통한 후, 회전자(5)와 고정자(4) 사이의 에어갭(15)이나 쉘(10)과 고정자(4) 사이의 틈을 통해서 상부 덮게(2) 쪽으로 이동하여 그곳에 설치된 토출파이프(16)를 통해 압축기 외부로 나간다.First, when power is applied and the stator 4 is magnetized, mutual induction is generated between the stator 4 and the rotor 5 so that the rotor 5 and the rotating shaft 6 rotate, and the roller 8 Is eccentrically rotated inside the cylinder (9) in contact with the vane (11), and the low-temperature low-pressure refrigerant gas flows into the cylinder (9) through the inlet (12) due to the volume change caused by the eccentric rotation of the roller (8). Is compressed into a state of high temperature and high pressure, and the compressed refrigerant gas passes through the discharge port 13 to the muffler 14 attached to the outside of the cylinder 9, which passes through the inside of the sealed container, and then the rotor 5 and The air gap 15 between the stator 4 or the gap between the shell 10 and the stator 4 moves toward the upper cover 2 and exits the compressor through the discharge pipe 16 installed therein.

전술한 종래 기술에 따른 구조 및 동작에서 실린더(9)를 쉘(1)에 고정시키기 위하여 도 2에 나타낸 바와 같이 실린더(9)와 쉘(1)이 접촉하는 면의 몇 개의 지점(A)에 용접을 하게 된다.In order to fix the cylinder 9 to the shell 1 in the structure and operation according to the prior art described above, as shown in FIG. 2, at several points A on the surface where the cylinder 9 and the shell 1 contact. We do welding.

이때, 실린더(9)와 쉘(1)이 서로 다른 재질로 되어 있으므로 오랜시간의 용접공정이 필요하게 되는데, 용접에 의하여 실린더(9)의 열변형이 발생하고, 용접성이 불량하여 신뢰성에도 문제가 발생한다.At this time, since the cylinder 9 and the shell 1 are made of different materials, a long time welding process is required, and heat deformation of the cylinder 9 occurs by welding. Occurs.

또한, 실린더(9)와 쉘(1)의 견고한 부착력이 확보되지 않아서 쉘의 강성이 떨어지고, 그 결과 하부덮개(3)를 쉘(1)에 용접할 때 쉘 변형이 쉽게 발생되어 실린더 변형으로 연결된다. 그 결과 소음 및 효율에 악영향을 주게 되는 문제점이 있었다.In addition, the rigidity of the shell is not secured because the firm attachment force between the cylinder 9 and the shell 1 is not secured. As a result, when the lower lid 3 is welded to the shell 1, the shell deformation is easily generated and connected to the cylinder deformation. do. As a result, there was a problem that adversely affect the noise and efficiency.

본 발명은 상기한 바와 같은 종래 기술의 문제점을 해결하기 위하여 발명된 것으로 실린더와 쉘간의 용접성을 개선하여 용접공정 중 발생하는 실린더 및 쉘의 열변형을 저감하는데 목적이 있다.The present invention is invented to solve the problems of the prior art as described above is to improve the weldability between the cylinder and the shell to reduce the thermal deformation of the cylinder and shell generated during the welding process.

또한, 본 발명의 다른 목적으로는 쉘의 강성을 증가시켜 압축기 내부로부터 방사되는 소음을 저감시키는데 있다.In addition, another object of the present invention is to increase the rigidity of the shell to reduce the noise emitted from the inside of the compressor.

도 1은 일반적인 로터리압축기의 측단면도.1 is a side cross-sectional view of a typical rotary compressor.

도 2는 종래 기술에 따른 압축기의 압축부 평단면도.Figure 2 is a plan sectional view of the compression section of the compressor according to the prior art.

도 3은 본 발명의 실시예에 따른 압축부 평단면도.3 is a cross-sectional view of the compression unit according to an embodiment of the present invention.

도 4는 도 3의 B-B'부 단면 확대도.4 is an enlarged cross-sectional view taken along the line B-B 'of FIG. 3;

*** 도면의 주요 부분에 대한 부호의 설명 ****** Explanation of symbols for the main parts of the drawing ***

1 : 쉘2 : 상부덮개1: Shell 2: Upper cover

3 : 하부덮개4 : 고정자3: bottom cover 4: stator

5 : 회전자6 : 회전축5: Rotor 6: Rotating shaft

7 : 편심부8 : 로울러7: eccentric 8: roller

9 : 실린더18 : 실린더링9: cylinder 18: cylinder ring

상기와 같은 목적을 실현하기 위한 본 발명의 기술적 수단은 실린더의 외주면을 따라 실린더링을 결합하고; 상기 실린더링은 압축기 쉘 내주면에 결합하는 것을 특징으로 한다.Technical means of the present invention for realizing the above object is coupled to the cylinder ring along the outer peripheral surface of the cylinder; The cylinder ring is characterized in that coupled to the inner peripheral surface of the compressor shell.

바람직하기로, 상기 실린더링은 상기 실린더 외주면에 열박음에 의해 결합되고, 상기 실린더링은 상기 쉘 내주면에 용접 결합되게 된다.Preferably, the cylinder ring is coupled to the cylinder outer peripheral surface by shrinkage, the cylinder ring is to be welded to the shell inner peripheral surface.

바람직하기로, 상기 실린더링과 상기 쉘은 동일재질을 이루게 된다.Preferably, the cylinder ring and the shell are made of the same material.

바람직하기로, 상기 쉘과 상기 실린더링의 용접위치는 실린더와 실린더링이 직접 접촉되지 않는 부위에 설정하게 된다.Preferably, the welding position of the shell and the cylinder ring is set at a portion where the cylinder and the cylinder ring are not in direct contact.

이와 같이 하면, 실린더링과 쉘이 동일재질의 용접으로 인해 용접성이 향상되고 실린더와 쉘이 직접 용접 결합되지 않으므로, 제작공정 중 실린더의 열변형 발생이 감소될 수 있게됨을 알 수 있다.In this way, the weldability of the cylinder and the shell are improved due to the welding of the same material, and the cylinder and the shell are not directly welded to each other, and thus, it can be seen that heat deformation of the cylinder can be reduced during the manufacturing process.

또한, 실린더링이 쉘의 강성을 증가시키게 되어 쉘변형의 발생 또한 감소될 수 있다.In addition, the cylinder ring increases the rigidity of the shell can also reduce the occurrence of shell deformation.

그 결과, 제품의 생산성을 향상시키며 쉘 내부에서 직접 방사되는 소음을 저감할 수 있는 이점이 있다.As a result, there is an advantage to improve the productivity of the product and to reduce the noise emitted directly inside the shell.

그리고, 본 발명의 실시예로는 다수개가 존재할 수 있으며, 이하에서는 가장 바람직한 실시예에 대하여 상세히 설명하기로 한다.And, there may be a plurality of embodiments of the present invention, hereinafter will be described in detail with respect to the most preferred embodiment.

이 바람직한 실시예를 통해 본 발명의 목적, 특징 및 효과들을 보다 잘 이해할 수 있게된다.This preferred embodiment allows for a better understanding of the objects, features and effects of the present invention.

이하, 첨부한 도면을 참조하여 본 발명에 의한 실린더 지지구조의 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the cylinder support structure according to the present invention will be described in detail with reference to the accompanying drawings.

또한, 설명에 사용되는 도면에 있어서, 종래기술과 같은 구성성분에 관해서는 동일한 도면부호를 부여하여 표시하고 그 중복되는 설명을 생략하는 것도 있다.In addition, in drawing used for description, about the component similar to the prior art, the same code | symbol is attached | subjected, and the overlapping description may be abbreviate | omitted.

도 3은 본 발명의 실시예에 따른 압축부 평단면도를 도시한 것이고, 도 4는 본 발명의 실시예에 따른 실린더 지지구조를 확대한 단면도이다.3 is a cross-sectional view of the compression unit according to an embodiment of the present invention, Figure 4 is an enlarged cross-sectional view of the cylinder support structure according to an embodiment of the present invention.

본 실시예에 따른 구조는 실린더(9)의 외주면에 실린더링(18)을 열박음하는 구조로 이루어진다.The structure according to the present embodiment has a structure of shrinking the cylinder ring 18 on the outer peripheral surface of the cylinder (9).

특히, 실린더링(18)은 쉘(1)과 동일한 재질로 구성함으로 용접위치(A')에서의 용접성을 향상시킬 수 있고, 쉘(1)과의 밀착성도 견고하게 되어 있어서 쉘(1)의 강성을 높여주게 된다.In particular, since the cylinder ring 18 is made of the same material as the shell 1, the weldability at the welding position A 'can be improved, and the adhesiveness with the shell 1 is also firmly established. It will increase the stiffness.

상기 구조물들의 결합공정은 먼저, 실린더 주물상태에서 실린더(9) 외경만 선삭한 후 실린더(9)와 실린더링(18)의 열박음을 진행하고, 그 다음 실린더(9) 내면을 가공한다. 그러므로 링(18)의 열박음으로 인한 실린더 변형은 발생하지 않게된다.In the joining process of the structures, first, only the outer diameter of the cylinder 9 is turned in a cylinder casting state, and then the shrinkage of the cylinder 9 and the cylinder ring 18 is progressed, and then the inner surface of the cylinder 9 is processed. Therefore, cylinder deformation due to shrinkage of the ring 18 does not occur.

또한, 쉘(1)과 실린더(9)의 용접위치(19)도 실린더(9)와 실린더링(18)이 직접 접촉하지 않는 부분(A')에 설정하여 용접함으로서, 용접공정 시 발생하는 실린더의 열변형도 최소화 시킬 수 있게된다.In addition, the welding position 19 of the shell 1 and the cylinder 9 is also set at the portion A 'where the cylinder 9 and the cylinder ring 18 are not in direct contact with each other to weld the cylinder. It is also possible to minimize the thermal deformation of the.

한편 비교 예로서, 즉 종래의 실린더 결합은 쉘과 실린더가 각각 다른 재질이어서 용접성이 저하되는 등 여러 가지 문제점이 발생하였던 것과는 달리, 본 발명은 실린더의 외주면에 쉘과 동일재질의 실린더링을 구성하여 용접성을 향상시킬수 있게 됨을 알 수 있다.On the other hand, as a comparative example, that is, the conventional cylinder coupling is different from the shell and the cylinder is a different material, so that various problems, such as weldability is deteriorated, the present invention constitutes a cylinder ring of the same material as the shell on the outer peripheral surface of the cylinder It can be seen that the weldability can be improved.

이 결과에서, 본 발명에 의하면 쉘 및 실린더의 용접 열변형이 감소되어 소음저감과 동시에 작업성을 향상시킬 수 있게된다.As a result, according to the present invention, the welding heat deformation of the shell and the cylinder can be reduced, thereby improving workability while reducing noise.

그리고, 상기에서 본 발명의 특정한 실시예가 설명 및 도시되었지만 본 발명이 당업자에 의해 다양하게 변형되어 실시될 가능성이 있는 것은 자명한 일이다.In addition, while specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

이와 같은 변형된 실시예들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어져서는 안되며, 이와 같은 변형된 실시예들은 본 발명의 첨부된 특허청구범위 안에 속한다 해야 할 것이다.Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.

이상 설명한 바와 같이 본 발명의 실린더 지지구조는 실린더와 쉘간의 용접 결합성을 향상시켜 압축기의 제조공정중 발생하는 실린더 및 쉘의 열변형을 감소시킬 수 있게 된다.As described above, the cylinder support structure of the present invention can improve the weldability between the cylinder and the shell, thereby reducing the thermal deformation of the cylinder and the shell generated during the manufacturing process of the compressor.

그 결과, 쉘의 강성이 증가하여 압축기 내부에서 방사되는 소음 또한 감소시키는 효과가 있다.As a result, the rigidity of the shell is increased to reduce the noise emitted from the inside of the compressor.

Claims (5)

밀폐용기내에 전동요소인 회전자 및 고정자와, 상기 회전자와 함께 편심회전하는 회전축과, 상기 회전축에 접동하여 자전하는 롤러와, 상기 롤러의 유동에 의해 냉매가 압축되도록 압축실을 이루는 실린더와, 상기 실린더의 외주에 구성되는 쉘이 포함되어 구성되는 로타리압축기에 있어서:A rotor and stator, which are electric elements in a sealed container, a rotating shaft eccentrically rotating with the rotor, a roller sliding in rotation with the rotating shaft, and a cylinder constituting a compression chamber so that refrigerant is compressed by the flow of the roller; In a rotary compressor comprising a shell configured on the outer periphery of the cylinder: 상기 실린더의 외주면을 따라 실린더링이 결합되고,The cylinder ring is coupled along the outer circumferential surface of the cylinder, 상기 실린더링은 상기 쉘 내주면에 결합됨을 특징으로 하는 로터리압축기의 실린더 결합구조.The cylinder ring is a cylinder coupling structure of the rotary compressor, characterized in that coupled to the shell inner peripheral surface. 제 1 항에 있어서,The method of claim 1, 상기 실린더링은 상기 실린더 외주면에 열박음에 의해 결합된 것임을 특징으로 하는 로터리압축기의 실린더 결합구조.The cylinder ring is a cylinder coupling structure of the rotary compressor, characterized in that coupled to the outer peripheral surface by shrinking. 제 1 항에 있어서,The method of claim 1, 상기 실린더링은 상기 쉘 내주면에 용접 결합된 것임을 특징으로 하는 로터리압축기의 실린더 결합구조.The cylinder ring is a cylinder coupling structure of the rotary compressor, characterized in that welded to the shell inner peripheral surface. 제 1 항 또는 제 3 항에 있어서,The method according to claim 1 or 3, 상기 실린더링과 쉘은 동일재질로 이루어짐을 특징으로 하는 로터리압축기의 실린더 결합구조.The cylinder ring and the shell is a cylinder coupling structure of the rotary compressor, characterized in that made of the same material. 제 3 항에 있어서,The method of claim 3, wherein 상기 쉘과 상기 실린더링의 용접위치는 실린더와 실린더링이 직접 접촉되지 않는 부위에 설정됨을 특징으로 하는 로터리압축기의 실린더 결합구조.The welding position of the shell and the cylinder ring is a cylinder coupling structure of the rotary compressor, characterized in that the cylinder and the cylinder ring is set in direct contact.
KR1019990000475A 1999-01-11 1999-01-11 cylinder consolidation assembly of rotary compressor KR20000050526A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100614226B1 (en) * 2005-03-04 2006-08-22 엘지전자 주식회사 Method for manufacturing compression part of an orbiting vane compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100614226B1 (en) * 2005-03-04 2006-08-22 엘지전자 주식회사 Method for manufacturing compression part of an orbiting vane compressor

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