CN1089865C - Suction muffler for hermetically sealed compressor - Google Patents
Suction muffler for hermetically sealed compressor Download PDFInfo
- Publication number
- CN1089865C CN1089865C CN97120364A CN97120364A CN1089865C CN 1089865 C CN1089865 C CN 1089865C CN 97120364 A CN97120364 A CN 97120364A CN 97120364 A CN97120364 A CN 97120364A CN 1089865 C CN1089865 C CN 1089865C
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- CN
- China
- Prior art keywords
- noise
- mentioned
- silencer
- air suction
- suction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
-
- 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
- F04B39/0072—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes characterised by assembly or mounting
Abstract
The present invention relates to a muffler for hermetically sealed compressor. The muffler has the following components: a suction muffler which decreases the noise flowing through the internal flow channel, and a connection control device which can selectively connect with the import or export of the suction muffler. The said connection control device opens after the suction valve has opened, and closes before the suction valve has closed by useing the pressure caused by the piston movement in the suction muffler. This device can effectively prevent the hitting voice of the suction valve to transmit outside, and greatly reduce the compressor noise.
Description
The present invention relates to a kind of closed compressor, in more detail, relate to the device of reduction noise of the closed compressor of the noise that a kind of action that can reduce effectively in the compressor operation process because of Aspirating valves produces.
Fig. 1 is the cut-away view of linkage type closed compressor of the prior art.
As shown in Figure 1, existing closed compressor has a seal container (1) of being made up of upper container (1t) and bottom container (1b), framework (2) is bearing in the inside in sealing container (1), fixing stator (3) on this framework (2), spring (2S) then is bearing in said stator (3) in the seal container (1).
In addition, the central authorities that also have a rotating shaft (5) to run through said frame (2).In this rotating shaft (5), fixing a rotor (4), by means of and stator (3) between mutual electromagnetic action, rotor (4) can rotate with above-mentioned rotating shaft (5).
One section cam pin (5b) with the rotating center off-centre of bent axle is arranged on rotating shaft (5) top.Relative side forming this cam pin (5b) has counterweight (5c).Label 5a is the grease channel that forms in the inside of rotating shaft (5) for supplying lubricating oil.
On the other hand,, a pressing chamber (6 ') is arranged, and in above-mentioned pressing chamber (6 '), piston (7) is connected with the cam pin (5b) of above-mentioned bent rotating shaft (5) by connecting rod (8) in above-mentioned cylinder block (6) inside that becomes one with framework (2).
In addition, the front end in above-mentioned cylinder block (6) is provided with the valve assembly (9) that the control refrigerant gas flowed into and flowed out above-mentioned pressing chamber.Label among the figure (14) is a cylinder head, and (16) are that refrigerant is transported to the interior delivery pipe of seal container (1), and (17) are the outlet pipes of the refrigerant after the compression being discharged the compressor outside.
On the other hand, link to each other with above-mentioned valve assembly (9) for the inhaling silencer (15) that reduces the noise that causes by refrigerant.Below, describe the structure of the reduction noise of compressor in detail with reference to Fig. 2.
To be transported to the sucking pipe (18) that the refrigerant of compressor inside is transported in the pressing chamber (6 ') by delivery pipe (16) is connected with inhaling silencer (15).In addition, also be provided with sympathetic response silencing apparatus (19) in a side of above-mentioned sucking pipe (18).
Above-mentioned inhaling silencer (15) will be transported in the process of pressing chamber (6 ') by the refrigerant that sucking pipe (18) sucks, and has worked to reduce noise.This air suction and noise silencer (15) communicates with pressing chamber (6 ') by the suction port (11) of the cylinder head (10) of formation valve assembly (9).Label 12 among the figure is open/close Aspirating valvess of control suction port (11).
When the compressor with above-mentioned formation was connected power supply, rotor (4) just rotated owing to the electromagnetic action between it and the stator (3), so, also rotate with the rotating shaft (5) that rotor (4) is made of one.When above-mentioned rotating shaft (5) is rotated, just simultaneously drawing circle with the cam pin (5b) of this rotating shaft (5) off-centre simultaneously rotates, so the connecting rod (8) that is connected on this cam pin (5b) just moves with this cam pin (5b), makes above-mentioned piston (7) do straight reciprocating motion.Above-mentioned piston (7) is done straight reciprocating motion in pressing chamber when, refrigerant is compressed.
On the other hand, refrigerant is transported in the pressing chamber (6 ') by sucking pipe (18) and inhaling silencer (15) and goes.The refrigerant that is transported in this inhaling silencer (15) is opened the suction port (11) of Aspirating valves (12), sucks then in the pressing chamber (6 ').Refrigerant by the outlet valve (not shown) of valve assembly (9), is discharged to the outside of compressor through outlet pipe (17) after overcompression.
Below, the structure and the process that reduce the noise in the compressor operation process are described.When compressor starts, when piston (7) carried out suction stroke, refrigerant just flowed into sucking pipe (18), was transported to inhaling silencer (15) from sucking pipe (18) again.At this moment, the sympathetic response silencing apparatus (19) that is arranged on sucking pipe (18) one sides utilizes its sympathetic response effect, reduces the noise of the high frequency band that is flowing in the refrigerant in the sucking pipe (18).Then, the refrigerant of inflow air suction and noise silencer (15) relends the runner that helps air suction and noise silencer (15) inside and is reduced in the noise that produces in the flow process.
Therefore, in the device of existing reduction noise,, just can reduce the noise of special frequency band to the width (B) of the length (A) of the stop volume (V) of sympathetic response silencing apparatus (19), entrance channel and entrance channel if adjust well.In addition, diameter (D) and the length of not only adjusting sucking pipe (18) can obtain the effect that reduces noise, sucking pipe (18) is inserted the inner length (C) of inhaling silencer (15) adjust to optimum length, also can obtain the effect that reduces noise.
, in the device of existing reduction noise, exist the problem that the effect that reduces noise is reduced because inhaling silencer (15) is connected together with sucking pipe (18) all the time.That is, the sound that impacts that is produced when making Aspirating valves (12) ON/OFF can be delivered to the outside against air-flow and come by inhaling silencer (15) and the sucking pipe (18) that is being communicated with all the time, has increased the noise of compressor.
Therefore, purpose of the present invention will solve existing problem in the prior art exactly, makes between sucking pipe and the air suction and noise silencer to selectively to be communicated with, thereby can prevent that the noise transmission that stroke produced that is accompanied by Aspirating valves from going to the outside.
In order to achieve the above object, provide a kind of device of reduction noise of closed compressor, it is characterized in that the device of this reduction noise has: the air suction and noise silencer that the noise of the refrigerant runner flowing refrigerant by inside is reduced; And can being communicated with selectively, so that the connection control gear that noise is come out by the reverse transmission of above-mentioned refrigerant runner with a side and the opposite side of above-mentioned air suction and noise silencer.
The pressure that above-mentioned connection control gear utilizes the action of Aspirating valves to cause in above-mentioned air suction and noise silencer is opened after Aspirating valves is opened, and closes before Aspirating valves cuts out.
In addition, above-mentioned connection control gear is a pair of noise partition panel made from soft material, and it is fixed on the suction side of above-mentioned inhaling silencer, its end relative to each other, and be positioned at air suction and noise silencer inside relative to each other free end contact with each other.
Device with reduction noise of this structure of the present invention can cut off because the hit noise that action produced of Aspirating valves does not make it be delivered to the outside and goes, and therefore can make that the noise that compressor produced is reduced to minimum.
Below, describe embodiments of the invention in detail with reference to accompanying drawing.In the accompanying drawing, every part same as the prior art or part are all used same label.In the accompanying drawing:
Fig. 1 is the in-built sectional view of closed compressor of the prior art;
Fig. 2 is the schematic cross-sectional views of device of the reduction noise of closed compressor of the prior art;
Fig. 3 is the schematic cross-sectional views according to the device of the reduction noise of closed compressor of the present invention;
Fig. 4 is the stereogram according to the structure of the pith of the device of the reduction noise of closed compressor of the present invention;
Fig. 5 is the plotted curve of explanation according to the action of the device of the reduction noise of closed compressor of the present invention.
As shown in Figure 3 and Figure 4, the outlet of air suction and noise silencer (15) is communicated with the suction port (11) of valve assembly (9).And, be provided with noise reduction plate (20,20 ') in the inlet of above-mentioned inhaling silencer (15).So in the inside of the air suction and noise silencer (15) of this structure, formed refrigerant can inside be flowed, can reduce the flow of refrigerant route of noise again.For convenience, the glide path of not representing refrigerant in the accompanying drawings.
Above-mentioned noise reduces by two of plates (20,20 ') relative to each other, is arranged on the inlet of air suction and noise silencer.But, it is not must be arranged on the entrance location of air suction and noise silencer (15) that this noise reduces plate (20,20 '), as long as can make the hit noise that action produced that is accompanied by Aspirating valves (12) not transmit out to countercurrent direction, being arranged on can on any position.The end of this noise reduction plate (20,20 ') is individually fixed on the standing part (15 ') of inlet's formation of inhaling silencer (15), and relative to each other, its free end (F) always contacts with each other usually, with isolated, they are communicated with the outside of inlet.
Above-mentioned noise reduces the thickness of plate (20,20 ') preferably less than 0.15mm, its material can adopt the material with softness characteristics, must be able to inhaling silencer (15) be communicated with sucking pipe (18), they are cut off according to the variation of inhaling silencer (15) internal pressure.Particularly, above-mentioned noise reduces plate (20,20 ') and opens mutually after above-mentioned Aspirating valves (12) is opened, and before Aspirating valves (12) cut out, its free end (F) will contact with each other, and according to what this principle was selected material and standing part angle (E) was set.
In addition, in the accompanying drawing, the shape that above-mentioned noise reduces plate (20,20 ') is a rectangle, but, also can adopt any shape, as long as it is just passable with being communicated with of sucking pipe (18) to cut off air suction and noise silencer (15).
Below, describe principle in detail according to above embodiment's reduction compressor noise.
When compressor operating, above-mentioned piston (7) makes above-mentioned Aspirating valves (12) open suction port (11) in the motion of pressing chamber (6 ') rear.When suction port (11) when opening, pressing chamber (6 ') pressure inside has just equated with pressure in the air suction and noise silencer (15), so, just be inhaled into the inside of the relatively low air suction and noise silencer of pressure (15) at the higher relatively refrigerant of sucking pipe (18) one side pressure.Because flowing of this refrigerant, the free end (F) that the noise that is just contacting with each other reduces plate (20,20 ') just separates, and is state shown in dotted lines in Figure 3.So refrigerant just flows into air suction and noise silencer (15) by above-mentioned sucking pipe (18), flow into pressing chamber (6 ') from air suction and noise silencer (15) again.
Suction stroke end of a period when piston (7), during the beginning compression stroke, above-mentioned Aspirating valves (12) just cuts out, because before this at pressing chamber (6 ') inside and the inner formed pressure of air suction and noise silencer (15), the free end (F) that noise reduces plate (20,20 ') just contacts with each other, being communicated with between the inside that cuts off air suction and noise silencer (15) and the sucking pipe (18).
When under such state, when compression stroke was at the end discharged refrigerant through overcompression by outlet valve, another began the suction stroke of piston (7).Then, piston (7) carries out compression stroke again, so repeatedly circulation.
Now, illustrate that with reference to Fig. 4 noise reduces the order of plate (20,20 ') and Aspirating valves (12) open and close.At first, piston began suction stroke when the pressure in air suction and noise silencer (15) and pressing chamber (6 ') was P3, and pressure drops to P2.When pressure arrived the moment t1 of P2, Aspirating valves (12) was opened.Under this state, piston (7) continues its suction stroke, and pressure also continues to descend.When pressure dropped to the moment t2 of P1, above-mentioned noise reduced plate (20,20 ') and just opens.
When at above-mentioned state lower piston (7) when proceeding suction stroke, pressure continues to descend, and when piston (7) begins to carry out compression stroke, pressure begins rising again.When compression stroke proceeds to pressure and reaches P1 again, it is just closed that above-mentioned noise reduces plate (20,20 '), cut off being communicated with between air suction and noise silencer (15) and the sucking pipe (18), when pressure reaches P2, Aspirating valves (12) cuts out, and the refrigerant in the pressing chamber (6 ') just really begins compression.
Like this, open from Aspirating valves (12), noise reduces plate (20,20 ') just to be opened, and after noise reduced plate (20,20 ') closure, Aspirating valves (12) just cut out.Therefore the sound that impacts that produces owing to the open and close of Aspirating valves (12) just has been cut off, and can not go to the outside by air suction and noise silencer (15) and sucking pipe (18) back transfer.So, the noise when greatly reducing compressor operating.
As mentioned above, the present invention utilizes action formed pressure in air suction and noise silencer of piston, making noise reduce plate opens after Aspirating valves is opened, and it is closed before Aspirating valves cuts out, thereby can cut off the noise that the action because of Aspirating valves produces, do not make it be delivered to the outside and go, reduced the noise of compressor widely.
Claims (3)
1. the device of the reduction noise of a closed compressor is characterized in that, it has following parts:
The air suction and noise silencer that the noise of the refrigerant runner flowing refrigerant by inside is reduced; And
Can be communicated with selectively with the import and the outlet of above-mentioned air suction and noise silencer, so that the connection control gear that noise is come out by the reverse transmission of above-mentioned refrigerant runner.
2. the device of the reduction noise of closed compressor as claimed in claim 1, it is characterized in that, the pressure that above-mentioned connection control gear utilizes the action of piston to be caused in air suction and noise silencer is opened after Aspirating valves is opened, and closed before Aspirating valves cuts out.
3. the device of the reduction noise of closed compressor as claimed in claim 1 or 2, it is characterized in that, above-mentioned connection control gear is the noise partition panel made from soft material, it is fixed on the suction side of above-mentioned inhaling silencer, an end contacts with each other and be positioned at the free end that air suction and noise silencer inside relatively is provided with relative to each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KRU45984/96 | 1996-12-06 | ||
| KR2019960045984U KR200148573Y1 (en) | 1996-12-06 | 1996-12-06 | Suction noise reduction apparatus of a hermetic compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1188853A CN1188853A (en) | 1998-07-29 |
| CN1089865C true CN1089865C (en) | 2002-08-28 |
Family
ID=19477523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97120364A Expired - Fee Related CN1089865C (en) | 1996-12-06 | 1997-12-05 | Suction muffler for hermetically sealed compressor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR200148573Y1 (en) |
| CN (1) | CN1089865C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101466949B (en) * | 2006-05-03 | 2012-01-25 | 惠而浦股份有限公司 | Resonator arrangement in an acoustic muffler for a refrigeration compressor |
| CN102016311B (en) * | 2008-05-01 | 2014-06-25 | 阿塞里克股份有限公司 | A compressor |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030073669A (en) * | 2002-03-12 | 2003-09-19 | 엘지전자 주식회사 | Gas passage valve system for reciprocating compressor |
| KR100436766B1 (en) * | 2002-07-19 | 2004-06-23 | 삼성광주전자 주식회사 | Reciprocating compressor |
| KR101386477B1 (en) * | 2008-01-10 | 2014-04-18 | 엘지전자 주식회사 | Noise reducing device for hermetic type compressor |
| WO2016155799A1 (en) * | 2015-03-31 | 2016-10-06 | Arcelik Anonim Sirketi | Suction muffler for use in a hermetic compressor |
| CN108462295A (en) * | 2018-03-26 | 2018-08-28 | 太仓富华特种电机有限公司 | Enclosed refrigeration compressor low noise efficient fluorine-resistant motor and its manufacturing process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4370104A (en) * | 1980-07-22 | 1983-01-25 | White Consolidated Industries, Inc. | Suction muffler for refrigeration compressor |
| EP0195486A2 (en) * | 1985-03-21 | 1986-09-24 | Whirlpool International B.V. | Hermetic motor-compressor unit for a refrigeration circuit |
| US5252035A (en) * | 1991-12-28 | 1993-10-12 | Goldstar Co., Ltd. | Suction structure for electrically-driven hermetic compressor |
| CN1096847A (en) * | 1992-12-21 | 1994-12-28 | 株式会社金星社 | Noise suppressing apparatus for hermetic reciprocating compressor |
| US5496156A (en) * | 1994-09-22 | 1996-03-05 | Tecumseh Products Company | Suction muffler |
| US5542824A (en) * | 1994-04-29 | 1996-08-06 | Samsung Electronics Co., Ltd. | Refrigerant compressor having interconnected muffler section |
| US5577898A (en) * | 1995-07-27 | 1996-11-26 | Samsung Electronics Co., Ltd. | Suction muffler arrangement for a hermetic reciprocating compressor |
-
1996
- 1996-12-06 KR KR2019960045984U patent/KR200148573Y1/en not_active IP Right Cessation
-
1997
- 1997-12-05 CN CN97120364A patent/CN1089865C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4370104A (en) * | 1980-07-22 | 1983-01-25 | White Consolidated Industries, Inc. | Suction muffler for refrigeration compressor |
| EP0195486A2 (en) * | 1985-03-21 | 1986-09-24 | Whirlpool International B.V. | Hermetic motor-compressor unit for a refrigeration circuit |
| US5252035A (en) * | 1991-12-28 | 1993-10-12 | Goldstar Co., Ltd. | Suction structure for electrically-driven hermetic compressor |
| CN1096847A (en) * | 1992-12-21 | 1994-12-28 | 株式会社金星社 | Noise suppressing apparatus for hermetic reciprocating compressor |
| US5542824A (en) * | 1994-04-29 | 1996-08-06 | Samsung Electronics Co., Ltd. | Refrigerant compressor having interconnected muffler section |
| US5496156A (en) * | 1994-09-22 | 1996-03-05 | Tecumseh Products Company | Suction muffler |
| US5577898A (en) * | 1995-07-27 | 1996-11-26 | Samsung Electronics Co., Ltd. | Suction muffler arrangement for a hermetic reciprocating compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101466949B (en) * | 2006-05-03 | 2012-01-25 | 惠而浦股份有限公司 | Resonator arrangement in an acoustic muffler for a refrigeration compressor |
| CN102016311B (en) * | 2008-05-01 | 2014-06-25 | 阿塞里克股份有限公司 | A compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR200148573Y1 (en) | 1999-06-15 |
| KR19980033079U (en) | 1998-09-05 |
| CN1188853A (en) | 1998-07-29 |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |