KR20040033936A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- KR20040033936A KR20040033936A KR1020020063228A KR20020063228A KR20040033936A KR 20040033936 A KR20040033936 A KR 20040033936A KR 1020020063228 A KR1020020063228 A KR 1020020063228A KR 20020063228 A KR20020063228 A KR 20020063228A KR 20040033936 A KR20040033936 A KR 20040033936A
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- South Korea
- Prior art keywords
- muffler
- refrigerant
- rotary compressor
- noise
- discharge
- Prior art date
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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
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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
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
- F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
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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
- F04C29/06—Silencing
- F04C29/065—Noise dampening volumes, e.g. muffler chambers
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
본 발명은 회전압축기에 관한 것으로, 더욱 상세하게는 회전압축기의 구동시 발생하는 맥동소음을 저감할 수 있는 머플러를 갖춘 회전압축기에 관한 것이다.The present invention relates to a rotary compressor, and more particularly to a rotary compressor having a muffler that can reduce the pulsation noise generated when driving the rotary compressor.
일반적으로 회전압축기는 냉매를 매개로 하여 압축 →응축 →팽창 →증발과정이 연속적으로 수행되는 공기조화기나 냉장고 등 냉각장치에 사용되어 냉매를 고압으로 압축하여 내보내는 장치이다.In general, a rotary compressor is used in a cooling device such as an air conditioner or a refrigerator in which compression, condensation, expansion, and evaporation processes are continuously performed through a refrigerant, and is a device that compresses and discharges the refrigerant at a high pressure.
이러한 종래의 회전압축기는 외관을 이루는 밀폐용기 내에 회전력을 발생시키는 구동장치와 회전축을 통해 구동장치로부터 회전력을 전달받아 냉매를 압축하는 압축장치를 내장하여 형성된다.Such a conventional rotary compressor is formed by a built-in compression device for compressing a refrigerant by receiving a rotational force from the driving device through the driving device and the rotating shaft to generate a rotational force in the sealed container forming the appearance.
또한 회전압축기에는 압축장치에서 토출된 냉매의 맥동소음을 저감하기 위하여 머플러가 마련된다.In addition, the rotary compressor is provided with a muffler to reduce the pulsation noise of the refrigerant discharged from the compression device.
도 1에는 일반적인 회전압축기에 적용되는 머플러가 도시되어 있다. 도시되어 있는 바와 같이 머플러(1)는 원형으로 형성되며, 중앙에 회전축(미도시)을 삽입할 수 있도록 회전축삽입공(2)가 마련되며, 일측에 냉매가 토출될 수 있도록 토출공(3)이 마련되어 있다.1 illustrates a muffler applied to a general rotary compressor. As shown, the muffler 1 is formed in a circular shape, the rotary shaft insertion hole (2) is provided to insert a rotating shaft (not shown) in the center, the discharge hole (3) so that the refrigerant can be discharged on one side This is provided.
따라서, 냉매가 압축장치(미도시)에 마련된 토출구(4)로부터 토출되면서 발생된 소음은 머플러(1)에 의해 저감되게 되는 것이다.Therefore, the noise generated while the refrigerant is discharged from the discharge port 4 provided in the compression device (not shown) is to be reduced by the muffler (1).
그런데, 이러한 회전압축기에 있어서, 머플러(1)의 토출공(3)은 그 크기를 크게 하면 충분한 냉매 토출량을 얻을 수 있으나 머플러(1)의 소음저감능력은 저하되며, 반대로 토출공(3)의 크기를 작게 하면 머플러(1)의 소음저감능력은 향상되나 유로저항이 발생하여 냉매 토출량이 줄어들고 그에 따라 회전압축기의 성능이 낮아지게 된다는 문제점이 있다.By the way, in such a rotary compressor, when the discharge hole 3 of the muffler 1 is increased in size, a sufficient refrigerant discharge amount can be obtained, but the noise reduction ability of the muffler 1 is lowered. When the size is reduced, the noise reduction ability of the muffler 1 is improved, but there is a problem in that a flow path resistance is generated and the amount of refrigerant discharged is reduced, thereby lowering the performance of the rotary compressor.
본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 그 목적은 토출구의 단면적을 크게 하면서도 머플러의 소음저감능력을 저하시키지 않을 수 있는 회전압축기를 제공하는 것이다.The present invention is to solve such a problem, the object of the present invention is to provide a rotary compressor that can increase the cross-sectional area of the discharge port while not reducing the noise reduction ability of the muffler.
도 1은 종래 회전압축기의 머플러가 도시된 평면도이다.1 is a plan view showing a muffler of a conventional rotary compressor.
도 2는 본 발명에 따른 회전압축기의 단면도이다.2 is a cross-sectional view of a rotary compressor according to the present invention.
도 3은 본 발명에 따른 회전압축기의 머플러가 도시된 평면도이다.3 is a plan view showing a muffler of a rotary compressor according to the present invention.
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
10: 밀폐용기20: 구동장치10: sealed container 20: drive device
30: 압축장치34: 토출구30: compression device 34: discharge port
40: 머플러41: 회전축삽입공40: muffler 41: rotary shaft insertion hole
42: 토출공42a: 소공부42: discharge hole 42a: small hole
42b: 연결부42b: connection
이와 같은 목적을 달성하기 위한 본 발명은,The present invention for achieving such an object,
외관을 이루는 밀폐용기 내에 동력을 발생시키는 구동장치와 상기 구동장치로부터 회전축을 통해 동력을 전달받아 냉매를 압축하는 압축장치와, 상기 압축장치에서 압축되어 토출된 냉매의 맥동소음을 저감하는 머플러를 구비한 회전압축기에 있어서, 상기 머플러에는 냉매가 토출되는 토출공이 적어도 하나 마련되되, 상기 토출공은 소정 직경으로 형성된 다수의 소공부와, 상기 다수의 소공부를 서로 연결하는 연결부를 구비하여 형성된다.It includes a drive device for generating power in the sealed container forming an appearance, a compression device receiving power from the drive device through a rotating shaft and compressing the refrigerant, and a muffler for reducing the pulsation noise of the refrigerant compressed and discharged from the compression device. In one rotary compressor, the muffler is provided with at least one discharge hole for discharging the refrigerant, the discharge hole is formed with a plurality of small holes formed in a predetermined diameter, and the connection portion for connecting the plurality of small holes to each other.
또한, 상기 압축장치는 내부에 냉매가 압축되는 압축실이 마련된 실린더와, 상기 실린더의 상부 및 하부에 설치되어 상기 회전축의 하단을 지지하는 상부플랜지 및 하부플랜지와, 상기 압축실에서 압축된 냉매가 토출될 수 있도록 상기 상부플랜지에 마련된 토출구를 구비하며, 상기 머플러는 상기 토출구를 덮도록 상기 상부 플랜지에 설치되며, 상기 다수의 소공부는 상기 토출구로부터 순차적으로 멀어지도록 마련된다.The compression device may include a cylinder having a compression chamber for compressing a refrigerant therein, an upper flange and a lower flange installed at upper and lower portions of the cylinder to support a lower end of the rotating shaft, and a refrigerant compressed in the compression chamber. A discharge port provided in the upper flange to be discharged, the muffler is provided in the upper flange to cover the discharge port, the plurality of small holes are provided to sequentially away from the discharge port.
또한, 상기 머플러에는 상기 회전축이 상기 머플러를 관통하여 상기 상부플랜지에 설치될 수 있도록 소정의 직경을 갖는 회전축삽입공이 마련되며, 상기 다수의 소공부는 상기 회전축삽입공에 인접하도록 상기 회전축삽입공의 원주방향으로 순차적으로 마련된다.In addition, the muffler is provided with a rotary shaft insertion hole having a predetermined diameter so that the rotating shaft penetrates the muffler to be installed in the upper flange, the plurality of small holes are adjacent to the rotary shaft insertion hole of the rotary shaft insertion hole It is provided sequentially in the circumferential direction.
이하에서는 본 발명의 바람직한 하나의 실시예를 도면을 참조하여 상세히 설명한다.Hereinafter, one preferred embodiment of the present invention will be described in detail with reference to the drawings.
본 발명에 따른 회전압축기는 도 2와 3에 도시되어 있는 바와 같이 밀폐 구성되는 밀폐용기(10) 내에 전원을 공급받아 구동하며 동력을 발생시키는 구동장치(20)와, 구동장치(20)의 동력을 전달받아 냉매를 흡입, 압축 및 토출하는 압축장치(30)를 포함하여 형성된다.As shown in FIGS. 2 and 3, the rotary compressor according to the present invention is driven and supplied with power in the hermetically sealed container 10 to generate power, and the power of the driving device 20. It is formed to include a compression device 30 for receiving, receiving, compressing and discharging the refrigerant.
밀폐용기(10)는 회전압축기의 외관을 이루는 것으로, 이의 상부에는 압축된 고압의 냉매가 토출되는 냉매토출관(11)이 구비되며, 하부에는 냉매가 유입되는 냉매흡입관(12)이 구비된다.The sealed container 10 forms an appearance of a rotary compressor, and an upper portion thereof includes a refrigerant discharge tube 11 through which a compressed high pressure refrigerant is discharged, and a refrigerant suction tube 12 through which a refrigerant is introduced.
구동장치(20)는 전원을 인가받아 자장을 형성하는 고정자(21)와, 고정자(21)에 회전 가능하게 설치되는 회전자(22)와, 봉형상으로 형성되며 일단은 회전자(22)에 고정되고 타단은 압축장치(30)를 관통하도록 설치되어 회전자(22)와 함께 회전하는 회전축(23)을 구비한다.The driving device 20 is a stator 21 that forms a magnetic field by applying power, a rotor 22 rotatably installed on the stator 21, and a rod-shaped end thereof, one end of which is formed on the rotor 22. It is fixed and the other end is provided to penetrate through the compression device 30 has a rotating shaft 23 to rotate with the rotor 22.
압축장치(30)는 이러한 구동장치(20)로부터 회전축(23)을 통해 회전력을 전달받아 동작하도록 되어 있는데, 내부에 냉매의 압축이 이루어지는 압축실(31a)이 마련된 실린더(31)와, 상기 실린더(31)의 상부 및 하부에 설치되어 상기 회전축(23)의 하단을 지지하는 상부플랜지(32U) 및 하부플랜지(32L)와, 압축실(31a) 내에 편심되게 설치되며 회전축(23)으로부터 회전력을 전달받아 회전하며 냉매를 압축하는 롤러(33)와, 롤러(33)와 함께 압축실(31a) 내부를 냉매의 압축이 이루어지는 압축부와 냉매가 흡입되는 흡입부로 구획하는 베인(미도시)을 구비하여 형성된다.The compression device 30 is configured to operate by receiving a rotational force from the driving device 20 through the rotation shaft 23. The cylinder 31 is provided with a compression chamber 31a through which the refrigerant is compressed, and the cylinder The upper flange 32U and the lower flange 32L, which are installed at the upper and lower portions of the support shaft 31 and support the lower end of the rotary shaft 23, are installed eccentrically in the compression chamber 31a, and rotate the rotation force from the rotary shaft 23. It is provided with a roller 33 for receiving and rotating the compressor to compress the refrigerant, and a vane (not shown) for dividing the inside of the compression chamber 31a into a compression part through which the refrigerant is compressed and a suction part through which the refrigerant is sucked together with the roller 33. Is formed.
상부플랜지(32U)에는 압축실(31a)에서 압축된 냉매가 밀폐용기(10) 내부로 토출될 수 있도록 토출구(34)가 마련되며, 토출구(34)에는 이를 개폐할 수 있도록 토출밸브(35)가 마련되어 토출밸브(35)가 압축실(31a)의 압력에 따라 동작하며 토출구(34)를 개폐하도록 되어 있다.The upper flange 32U is provided with a discharge port 34 so that the refrigerant compressed in the compression chamber 31a can be discharged into the sealed container 10, and the discharge valve 35 is opened and closed at the discharge hole 34. Is provided to operate the discharge valve 35 in accordance with the pressure of the compression chamber (31a) to open and close the discharge port (34).
이러한 회전압축기는 그 동작특성상 냉매가 압력맥동이 발생하여 그에 의한 맥동소음이 발생하고, 냉매가 토출밸브(35)를 통해 토출되면서 토출밸브(35) 개폐소음이 발생하게 된다.In the rotary compressor, the pulsation noise is generated by the pressure pulsation caused by the refrigerant, and the refrigerant is discharged through the discharge valve 35 to generate the opening and closing noise of the discharge valve 35.
따라서, 회전압축기에는 이러한 냉매의 맥동소음 및 토출밸브의 개폐소음을 저감시키기 위해 머플러(40)가 구비된다.Therefore, the rotary compressor is provided with a muffler 40 to reduce the pulsation noise of the refrigerant and the opening and closing noise of the discharge valve.
머플러(40)는 대략 일측이 개방된 원통형상으로 형성되며 개방부가 상부플랜지(32U)를 덮도록 설치되어, 머플러(40)와 상부플랜지(32U) 사이의 공간이 소음을 저감시키는 소음감쇄공간으로 작용하게 한다.The muffler 40 is formed in a cylindrical shape with approximately one side open, and the opening is installed to cover the upper flange 32U, and the space between the muffler 40 and the upper flange 32U is a noise attenuation space that reduces noise. To work.
이러한 머플러(40)에는 중앙에 회전축(23)이 관통하여 설치될 수 있도록 회전축삽입공(41)이 마련되며, 소음감쇄공간과 밀폐용기 내부공간을 연통시켜 압축된 냉매가 밀폐용기(10) 내로 토출될 수 있게 하는 토출공(42)이 마련된다.The muffler 40 is provided with a rotary shaft insertion hole 41 so that the rotary shaft 23 penetrates in the center thereof, and the refrigerant compressed by communicating the noise attenuation space with the sealed container internal space is sealed into the sealed container 10. Discharge holes 42 are provided to enable discharge.
이러한 토출공(42)은 토출구(34)에서 토출된 냉매가 소음감쇄공간에서 일정 거리 이상 이동한 후 토출될 수 있도록 토출구(34)로부터 소정거리 이격되게 마련되며, 소정 직경을 갖는 다수의 소공부(42a)와, 다수의 소공부(42a)를 서로 연결하여 토출구(34)에서 토출된 냉매의 양에 따라 이웃한 소공부(42a)로 냉매가 전달되게 하는 연결부(42b)로 이루어진다.The discharge holes 42 are provided to be spaced apart from the discharge holes 34 so that the refrigerant discharged from the discharge holes 34 may be discharged after moving a predetermined distance or more in the noise attenuation space, and have a plurality of small holes having a predetermined diameter. And a connecting portion 42b which connects the plurality of small holes 42a to each other so that the refrigerant is transferred to the adjacent small holes 42a according to the amount of the refrigerant discharged from the discharge hole 34.
또한, 이러한 토출공(42)의 다수의 소공부(42a)는 회전축삽입공(41)에 인접하도록 머플러(40)의 원주방향으로 차례로 배치되어 토출구(34)와의 거리가 순차적으로 멀어지도록 되어 있다.In addition, the plurality of small holes 42a of the discharge holes 42 are sequentially disposed in the circumferential direction of the muffler 40 so as to be adjacent to the rotary shaft insertion hole 41 so that the distance from the discharge hole 34 is sequentially separated. .
따라서, 냉매 토출시 발생하는 소음은 다수의 소공부(42a)를 통해 시차를 두고 분산되어 발산되므로 그 크기가 줄어들 수 있게 되는 것이다.Therefore, the noise generated when the refrigerant is discharged is dispersed with a parallax through the plurality of small holes 42a, so that the size can be reduced.
다음은 이와 같이 구성된 본 발명에 따른 회전압축기의 동작 및 작용효과를 도면을 참조하여 상세히 설명한다.Next, the operation and the effect of the rotary compressor according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.
회전압축기를 동작시키면, 구동장치(20)에 의해 회전축(23) 및 롤러(33)가 회전하면서 압축실(31a)에서 냉매가 압축되고 압축된 냉매는 상부플랜지(42U)에 마련된 토출구(35)를 통해 토출된다. 계속해서 냉매는 머플러(40)에 마련된 토출공(42)을 통해 밀폐용기(10) 내부로 토출되는데, 토출공(42a)은 다수의 소공부(42a)과 이를 연결하는 연결부(42b)로 이루어져 충분한 넓이를 갖도록 형성되므로 유로저항은 발생하지 않는다.When the rotary compressor operates, the rotary shaft 23 and the roller 33 are rotated by the driving device 20, and the refrigerant is compressed in the compression chamber 31a, and the compressed refrigerant is discharged to the upper flange 42U. It is discharged through. Subsequently, the refrigerant is discharged into the sealed container 10 through the discharge holes 42 provided in the muffler 40, and the discharge holes 42a are formed of a plurality of small holes 42a and a connection part 42b connecting them. It is formed to have a sufficient width so that no flow path resistance occurs.
한편, 토출구(34)를 통해 냉매가 토출되는 과정에서, 토출밸브(35)의 작동소음과 냉매의 압력맥동에 의한 맥동소음이 발생한다. 이러한 소음은 토출공(42)을 통해 밀폐용기(10)측으로 발산되게 되는데, 이 때, 다수의 소공부(42a)는 토출구(34)로부터의 거리가 순차적으로 멀어지도록 되어 있으므로 소음은 다수의 소공부(42a)를 통해 시차를 두고 분산되어 발산된다.On the other hand, in the process of discharging the refrigerant through the discharge port 34, the operation noise of the discharge valve 35 and the pulsation noise by the pressure pulsation of the refrigerant is generated. Such noise is emitted to the sealed container 10 side through the discharge hole 42. At this time, the plurality of small holes 42a are so far away from the discharge port 34 in sequence, the noise is a plurality of small It is distributed and diverged with time difference through study 42a.
이상에서 상세히 설명한 바와 같이, 본 발명에 따른 회전압축기의 머플러에는 원주방향으로 차례로 형성된 다수의 소공부와 다수의 소공부를 서로 연결하는 연결부를 구비한 토출공이 마련되어, 충분한 넓이의 토출공 면적을 확보할 수 있게됨과 동시에 소음은 다수의 소공부를 통해 시차를 두고 분산되어 발산되므로 소음은 저감되게 되는 작용효과가 있다.As described in detail above, the muffler of the rotary compressor according to the present invention is provided with a discharge hole having a plurality of small holes formed in the circumferential direction and a connecting portion connecting the plurality of small holes to each other, thereby ensuring a sufficient discharge hole area. At the same time, the noise is dispersed and dissipated with a parallax through a plurality of small holes, so the noise is reduced.
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| JPH109172A (en) * | 1996-06-19 | 1998-01-13 | Hitachi Ltd | Closed type compressor |
| KR100286834B1 (en) * | 1998-04-28 | 2001-05-02 | 구자홍 | Muffler of rotary compressor |
| KR100466616B1 (en) * | 2002-07-15 | 2005-01-15 | 삼성전자주식회사 | MUFFLER of ROTARY COMPRESSOR |
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