KR970005933Y1 - Rotary compressor - Google Patents

Rotary compressor Download PDF

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Publication number
KR970005933Y1
KR970005933Y1 KR2019940007271U KR19940007271U KR970005933Y1 KR 970005933 Y1 KR970005933 Y1 KR 970005933Y1 KR 2019940007271 U KR2019940007271 U KR 2019940007271U KR 19940007271 U KR19940007271 U KR 19940007271U KR 970005933 Y1 KR970005933 Y1 KR 970005933Y1
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KR
South Korea
Prior art keywords
muffler
rotary compressor
gas
bearing
noise
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KR2019940007271U
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Korean (ko)
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KR950030792U (en
Inventor
김종목
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엘지전자 주식회사
구자홍
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Priority to KR2019940007271U priority Critical patent/KR970005933Y1/en
Publication of KR950030792U publication Critical patent/KR950030792U/en
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Publication of KR970005933Y1 publication Critical patent/KR970005933Y1/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
    • 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
    • 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
    • F04C2240/50—Bearings

Abstract

없음none

Description

밀폐형 회전식 압축기의 소음저감장치Noise reduction device of hermetic rotary compressor

제1도는 일반적인 밀폐형 회전식 압축기의 종단면도.1 is a longitudinal sectional view of a typical hermetic rotary compressor.

제2도는 일반적인 밀폐형 회전식 압축기의 실린더부 평면도.2 is a plan view of a cylinder of a general hermetic rotary compressor.

제3도는 종래의 머플러를 도시한 것으로,3 shows a conventional muffler,

(가)는 평면도.(A) The top view.

(나)는 (가)도의 C-O-D선 단면도.(B) is sectional drawing along the line C-O-D of (a).

제4도는 본 고안에 의한 머플러를 도시한 것으로,Figure 4 shows a muffler according to the present invention,

(가)는 평면도.(A) The top view.

(나)는 (가도의 C-O-D선 단면도.(B) is (C-O-D cross-sectional view of the highway.

제5도는 본 고안에 의한 머플러와 하베어링이 체결되어 있는 상태를 보인 요부 단면도.5 is a sectional view of the main part showing a state in which the muffler and the lower bearing are fastened according to the present invention.

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

5 : 상베어링6 : 하베어링5: upper bearing 6: lower bearing

12 : 머플러20 : 소음차단용 홈부12: muffler 20: noise blocking groove

본 고안은 밀폐형 회전식 압축기에 관한 것으로, 특히 가스토출시 토출밸브의 거동으로 인해 발생되는 금속음과 가스의 맥동음을 저감하도록 한 밀폐형 회전식 압축기의 소음저감장치에 관한 것이다.The present invention relates to a hermetic rotary compressor, and more particularly, to a noise reduction device of a hermetic rotary compressor to reduce metal pulsation and gas pulsation caused by the operation of the discharge valve during gas discharge.

일반적인 밀폐형 회전식 압축기는 제1도 및 제2도에 도시한 바와 같이 밀폐용기(1) 내부에 전동부인 고정자(2) 및 회전자(3)가 설치되고, 상기 회전자(3)의 내경에 크랭크축(4)이 압입고정되어 있으며, 상기 크랭크축(4)의 하부에는 상,하베어링(5)(6)에 나사(7)로 결합되어 있는 실린더(8)와, 상기 실린더(8)의 내경을 접하면서 회전하는 로울러(9)와, 상기 로울러(9)와 접촉하면서 압축공간을 형성하는 베인(10)으로 구성되는 압축기구부가 형성되어 있다.In the general hermetic rotary compressor, as illustrated in FIGS. 1 and 2, the stator 2 and the rotor 3, which are electric parts, are installed in the sealed container 1, and the crank is formed in the inner diameter of the rotor 3. The shaft 4 is press-fitted and fixed to the lower part of the crankshaft 4 with a cylinder 8 coupled to the upper and lower bearings 5 and 6 with a screw 7, and of the cylinder 8. A compressor mechanism is formed which comprises a roller 9 which rotates while contacting an inner diameter and a vane 10 which contacts the roller 9 and forms a compression space.

상기 베인(10)의 상,하사점을 유지하기 위한 베인(10)의 후단부에는 코일스프링(11)이 설치되어 베인(10)을 지지하고 있으며, 사기 하베어링(6)에는 머플러(12)가 복개고정되어 있다.A coil spring 11 is installed at the rear end of the vane 10 to maintain the upper and lower dead centers of the vanes 10 to support the vanes 10, and the muffler 12 is attached to the fraud lower bearing 6. Is fixed to the abdomen.

상기 밀폐용기(1)의 외측에는 냉매를 저장하는 흡입탱크(13)가 연결되어 있고, 밀폐용기(1)의 상단부에는 외부 전원을 공급하여 고정자에 연결시키는 밀봉단자(14)가 설치되어 있으며, 압축된 가스가 토출되는 토출파이프(15)가 설치되어 있다.A suction tank 13 for storing a refrigerant is connected to an outer side of the sealed container 1, and an upper end of the sealed container 1 is provided with a sealed terminal 14 for supplying external power to a stator. A discharge pipe 15 through which compressed gas is discharged is provided.

이와 같이 구성되어 있는 밀폐형 회전식 압축기는 고정자(2)와 회전자(3)의 유도기전력에 의해 회전자(3)와 크랭크축(4)이 편심회전을 하게 되면, 크랭크축(4)의 편심축에 조립된 로울러(9)가 실린더(8)의 내경을 따라 회전되어 흡입탱크(13)로부터 유입된 가스가 로울러(9)의 회전에 따라 압축되고, 압축된 가스는 로울러(9)와 접촉되어 있는 베인(10)의 상,하운동에 의해 저압측과 고압측으로 분리된다.In the hermetic rotary compressor configured as described above, when the rotor 3 and the crankshaft 4 eccentrically rotate by the induced electromotive force of the stator 2 and the rotor 3, the eccentric shaft of the crankshaft 4 The roller (9) assembled in the roller is rotated along the inner diameter of the cylinder (8) so that the gas introduced from the suction tank (13) is compressed by the rotation of the roller (9), and the compressed gas is in contact with the roller (9). The vane 10 is separated by the up and down movement to the low pressure side and the high pressure side.

이처럼, 저압측에서 고압측으로 압축된 가스는 실린더(8)와 고정체결되어 있는 상,하베어링(5)(6)의 토출공으로 토출되는 것으로, 이때 상기 하베어링(6)에 고정 체결되어 있는 벨브(16) 및 리테이터(17)는 압축된 가스가 일정시점에서 연속적으로 토출될 수 있도록 상,하운동을 하게 된다.(제5도참조)As such, the gas compressed from the low pressure side to the high pressure side is discharged into the discharge holes of the upper and lower bearings 5 and 6 fixedly fastened to the cylinder 8, in which case the valve is fixed to the lower bearing 6. The 16 and the retainer 17 move up and down so that the compressed gas can be continuously discharged at a certain point in time (see FIG. 5).

상기한 바처럼 실린더(8)의 고압축에서 빠져 나온 가스 하베어링(6)에 고정되어 있는 머플러(12)쪽으로 토출되어 상베어링(5)의 구멍을 따라 고정자(2)쪽으로 유입됨으로써 밀폐용기(1)의 상단부에 설치되어 있는 토출파이프(15)를 통해 외부로 토출되는 것이다.As described above, the discharge vessel is discharged toward the muffler 12 fixed to the gas bearing 6, which is released from the high pressure compression of the cylinder 8, and flows into the stator 2 along the hole of the upper bearing 5, thereby closing the container 1 It is discharged to the outside through the discharge pipe 15 is installed in the upper end of the).

그런데, 종래에는 가스가 고온고압으로 압축되어 하베어링(6)에 고정체결되어 있는 토출밸브(16)와 리테이너(17)에 의해 밀폐된 토출공을 통해 빠져 나올 때, 상기 토출밸브(16)가 리테이너(17)와 하베어링(6)의 토출공의 외측에 연속적으로 부딪치게 되어 심한 소음이 발생되는 것이었다.By the way, when the gas is conventionally compressed at a high temperature and high pressure and exits through the discharge hole sealed by the discharge valve 16 and the retainer 17 fixed to the lower bearing 6, the discharge valve 16 is A heavy noise was generated by continuously hitting the outer side of the discharge hole of the retainer 17 and the bearing 6.

이러한 소음을 방지하고자 하베어링(6)의 상측에 머플러(12)를 설치하였으나, 상기 토출밸브(16)의 연속적인 금속음 및 가스의 공명음을 저감시키지 못하는 문제점이 있었다.In order to prevent such noise, the muffler 12 is installed on the upper side of the bearing 6, but there is a problem in that the continuous metal sound of the discharge valve 16 and the resonance sound of the gas cannot be reduced.

상기한 바와 같은 문제점을 착안하여 안출한 본 고안의 목적은 가스토출시 토출밸브의 거동으로 인해 발생되는 금속음과 가스의 맥동음을 저감하려는 것이다.The object of the present invention devised in view of the problems described above is to reduce the pulsation noise of the metal sound and gas generated due to the operation of the discharge valve during gas discharge.

이러한 본 고안의 목적을 달성하기 위하여, 상베어링 또는 하베어링 상측에서 복개되는 머플러의 내주면에 소음차단용 홈부를 다수개 형성하여서 됨을 특징으로 하는 밀폐형 회전식 압축기의 소음저감장치가 제공된다.In order to achieve the object of the present invention, there is provided a noise reduction device of a hermetic rotary compressor characterized in that a plurality of noise blocking grooves are formed on the inner circumferential surface of the muffler to be covered from the upper bearing or the lower bearing.

이하, 상기한 바와 같은 본 고안의 첨부도면에 도시한 일실시예에 의거하여 보다 상세히 설명한다.Hereinafter, on the basis of one embodiment shown in the accompanying drawings of the present invention as described above in more detail.

제4도는 본 고안에 의한 머플러를 도시한 것으로, (가)는 평면도, (나)는 (가)도의 B-B선 단면도이고, 제5도는 본 고안에 의한 머플러와 하베어링이 체결되어 있는 상태를 보인 요부단면도로서, 이에 도시한 바와 같이, 본 고안에 의한 밀폐형 회전식 압축기의 소음저감장치는 상베어링(5)또는 하베어링(6)의 상측에서 복대되는 머플러(12')의 내주면에 소음차단용 홈부(20)를 다수개 형성하여서 된 것이다.4 is a muffler according to the present invention, (a) is a plan view, (b) is a cross-sectional view taken along line BB of (a), and FIG. 5 is a state in which the muffler and the lower bearing according to the present invention are engaged. As the main cross-sectional view, as shown therein, the noise reduction device of the hermetic rotary compressor according to the present invention has a noise blocking groove on the inner circumferential surface of the muffler 12 'which is arranged on the upper side of the upper bearing 5 or the lower bearing 6. It was made by forming a plurality of (20).

즉, 밀폐형 회전식 압축기에서 실린더(8)와, 상,하베어링(5)(6), 로울러(9), 베인(10)으로 구성되어 압축가스를 밀폐하는 압축기구부에 있어서, 크랭크축(4)의 회전에 의해서 가스를 고온고압으로 압축시켜 하베어링(6)에 형성된 토출공으로 압축가스가 토출되는데, 상기 압축가스의 토출공을 자동으로 개폐하는 밸브(16)와, 이 밸브(16)를 구속시키는 리테이너(17)가 설치되어 있는 바, 상기 밸브(16)가 개폐됨을 따라 발생되는 소음을 방지하기 위해 상베어링(5) 또는 하베어링(6)의 상측에 결합되는 머플러(12')의 내주면에 소음차단용 홈부(20)를 다수개 형성한 것이다.That is, in the closed rotary compressor, the crankshaft 4 includes a cylinder 8, upper and lower bearings 5 and 6, a roller 9, and a vane 10, in a compression mechanism for sealing compressed gas. Compressed gas is discharged to the discharge hole formed in the lower bearing 6 by compressing the gas at high temperature and high pressure by rotation of the valve 16. The valve 16 automatically opens and closes the discharge hole of the compressed gas, and the valve 16 is restrained. Bar retainer 17 is provided, the inner peripheral surface of the muffler 12 'coupled to the upper side of the upper bearing 5 or the lower bearing 6 in order to prevent noise generated when the valve 16 is opened and closed. In the plurality of noise blocking grooves 20 are formed.

이와 같이 구성되는 본 고안이 적용된 압축기의 동작 및 효과를 설명하면, 압축기의 압축기구부내로 유입왼가스는 크랭크축(4)의 회전으로 인해 압축되어 상, 하베어링(5)(6)과 실린더(8)내에서 회전되는 로울러(9)와, 로울러(9)를 지지하며, 상, 하운동되는 베인(10)에 의해 밀폐되어 고압과 저압의 압력차에 의해 밸브(16)가 개폐됨으로써 토출되는데, 이때 상기 밸브(16)의 거동에 의해 발생되는 금속음 및 가스의 맥동음이 종래에는 상기 상, 하베어링(5)(6)과 결합되어 있는 머플러(12)를 거쳐 밀폐용기(1)내로 전달되었으나, 본 고안에서는 머플러(12')내주면에 소음차단용 홈부(20)가 형성되어 있기 때문에 밸브(16)에서 발생되는 금속음 및 압축가스의 맥동음이 상기 홈부(20)사이의 틈새에서 상쇄되어 밀폐용기(1)외부로 전달되는 것이다.Referring to the operation and effect of the compressor is applied to the present invention configured as described above, the inlet left gas is compressed by the rotation of the crankshaft (4) due to the rotation of the crankshaft (4) upper and lower bearings (5) and the cylinder (8) is supported by the roller (9) rotated in the inside, the roller (9), is closed by the vane (10) to move up and down, discharged by opening and closing the valve (16) by the pressure difference between high and low pressure At this time, the pulsation sound of the metal and gas generated by the behavior of the valve 16 is conventionally sealed via the muffler (12) coupled with the upper, lower bearing (5) (6). Although transmitted to the inside, in the present invention, since the noise blocking groove 20 is formed on the inner circumferential surface of the muffler 12 ', the pulsation sound of the metal sound and the compressed gas generated by the valve 16 is a gap between the grooves 20. Offset is to be delivered to the sealed container (1) outside.

실험결과에 의하면 본 고안에서는 상기 소음차단용 홈부(20)의 형성에 따라 머플러(12)내부 체적이 종래 머플러에 비하여 약10% 증대되어 내부 공명 주파수를 1~2KHz 대역으로 튜닝함으로써 소음 스펙트럼에서 나타나는 1~2KHz 대역의 피크형상을 줄일 수 있었다.According to the experimental results, according to the present invention, the internal volume of the muffler 12 is increased by about 10% as compared with the conventional muffler according to the formation of the noise blocking groove 20, and the internal resonance frequency appears in the noise spectrum by tuning to the band of 1-2 KHz. The peak shape in the 1 ~ 2KHz band can be reduced.

이상에서 설명한 바와 같이, 본 고안은 상베어링 또는 하베어링에 고정되는 머플러의 내부면에 다수개의 홈부를 형성하여 고온고압의 압축가스 토출시 발생되는 밸브음과 가스의 맥동음 등을 상기 홈부에 부딪히도록하여 상쇄시킴으로써 소음이 저감되는 효과가 있는 것이다.As described above, the present invention forms a plurality of grooves on the inner surface of the muffler fixed to the upper bearing or the lower bearing, so that the valve sound and the pulsation sound of the gas generated during the discharge of compressed gas at high temperature and high pressure impinge on the groove portion. The noise is reduced by offsetting it.

Claims (1)

상베어링 또는 하베어링의 상측에서 복개되는 머플러의 내주면에 소음차단용 홈부를 다수개 형성하여서 됨을 특징으로 하는 밀폐형 회전식 압축기의 소음저감장치.Noise reduction device of the hermetic rotary compressor characterized in that a plurality of noise blocking grooves are formed on the inner circumferential surface of the muffler to be covered from the upper side of the upper bearing or the lower bearing.
KR2019940007271U 1994-04-07 1994-04-07 Rotary compressor KR970005933Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019940007271U KR970005933Y1 (en) 1994-04-07 1994-04-07 Rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019940007271U KR970005933Y1 (en) 1994-04-07 1994-04-07 Rotary compressor

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KR950030792U KR950030792U (en) 1995-11-20
KR970005933Y1 true KR970005933Y1 (en) 1997-06-16

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KR2019940007271U KR970005933Y1 (en) 1994-04-07 1994-04-07 Rotary compressor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11585344B2 (en) * 2020-01-10 2023-02-21 Lg Electronics Inc. Compressor provided with a muffler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11585344B2 (en) * 2020-01-10 2023-02-21 Lg Electronics Inc. Compressor provided with a muffler

Also Published As

Publication number Publication date
KR950030792U (en) 1995-11-20

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