CN1299008C - Multi-chamber silencer for rotary compressor - Google Patents
Multi-chamber silencer for rotary compressor Download PDFInfo
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- CN1299008C CN1299008C CNB021170290A CN02117029A CN1299008C CN 1299008 C CN1299008 C CN 1299008C CN B021170290 A CNB021170290 A CN B021170290A CN 02117029 A CN02117029 A CN 02117029A CN 1299008 C CN1299008 C CN 1299008C
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- chamber
- baffler
- chambers
- rotary compressor
- upper bearing
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Abstract
一种旋转式压缩机的多腔式消音器，消音器为薄壁罩壳，外形为中间有孔的环状扁圆柱形，内部形成环形的空腔，下部开口，罩在上部轴承上方，消音器中间的孔中穿入上部轴承的轴颈部分，消音器用螺钉固定在上部轴承上。消音器内的环形空间用隔板隔成多个冷媒扩张的腔室，相连接腔室中间的隔板上有通过冷媒的气孔。首个腔室与排气阀门相连，最后的腔室的侧壁上有气孔。本发明的有益效果是：气态冷媒进入消音器的多重扩张室，经反复扩张，消耗噪音的能量，有效的衰减噪声，大大降低噪声的强度。
A multi-chamber muffler for a rotary compressor. The muffler is a thin-walled casing with an annular flat cylindrical shape with a hole in the middle. An annular cavity is formed inside. The lower part is open and covered above the upper bearing for noise reduction. The journal part of the upper bearing is passed through the hole in the middle of the silencer, and the muffler is fixed on the upper bearing with screws. The annular space in the muffler is divided into a plurality of chambers in which the refrigerant expands with partitions, and there are air holes through which the refrigerant passes through the partitions in the middle of the connected chambers. The first chamber is connected to the exhaust valve, and the side wall of the last chamber has air holes. The beneficial effect of the invention is that the gaseous refrigerant enters the multiple expansion chambers of the muffler, and after repeated expansion, the energy of the noise is consumed, the noise is effectively attenuated, and the intensity of the noise is greatly reduced.
Description
Technical field
The present invention relates to a kind of compressor, particularly relate to the baffler of rotary compressor.
Background technique
Rotary compressor is widely used in various refrigerators, the air-conditioning, rotary compressor sucks the gaseous coolant through evaporator evaporation, after it is compressed to full resultant pressure, be discharged into the work system of refrigerant again, rotary compressor is the compressor that can suck and discharge refrigerant continuously.
Fig. 1 is the sectional arrangement drawing of existing compressor, the compressor of representing among Fig. 1 is the rolling rotor rotary compressor, as seen from Figure 1, rotary compressor has airtight casing 10, the stator 21 of rotary compressor motor and rotor 22 are installed in the top of casing 10, rotor 22 center fixed have eccentric shaft 30, cylinder of compressor body 40 is positioned at the bottom of airtight casing 10, the eccentric shaft part 31 that eccentric shaft 30 is arranged in the cylindrical cylinder hole of cylinder block 40 central authorities, on the external cylindrical surface of eccentric shaft part 31 rolling rotor is arranged, when eccentric shaft part 31 carries out the circular motion rotation with eccentric shaft 30 in cylinder-bore, the rolling rotor compression enters the gaseous coolant in the cylinder block 40, also has the height of separation in the cylinder block, the baffle plate (not shown) of low pressure area refrigerant, on the cylinder block 40, the lower end surface is fixed with blanket gas cylinder body end face, and supports the upper bearing 51 and the lower bearing 52 of eccentric shaft 30 rotations.
In the side of airtight casing 10 sucking pipe 60 is arranged, sucking pipe 60 enters in the pressing chamber 41 of compressor cylinder block 40 refrigerant.On the upper-end surface of upper bearing 51 by the drain tap (not shown) is housed, drain tap is discharged to the pressing chamber of refrigerant by cylinder block 40 in the baffler 80, again by being discharged in the baffler 80 in the airtight casing 10, there is outlet pipe 70 top of airtight casing 10, and outlet pipe 70 enters the refrigerant in the airtight casing 10 circulatory system of refrigerant.Baffler 80 is installed above upper bearing 51, baffler 80 is the thin-walled case, profile is the middle porose oblate cylindricality of ring-type, the inner cavity that forms annular, lower openings, cover on upper bearing 51 tops, penetrate the necked part of upper bearing 51 in the hole in the middle of the baffler, baffler is screwed on upper bearing 51.The upper-end surface of baffler 80 and upper bearing 51 surrounds cavity, and after being positioned at refrigerant that the drain tap of upper bearing upper-end surface discharges and entering the cavity of baffler 80, the outlet pipe through baffler 80 enters in the closed shell 10 again.
After the rolling rotor rotary compressor of said structure is connected power supply, rotor 22 rotations in the airtight casing 10, make the rotation of eccentric shaft 30 and rolling rotor, compression enters the refrigerant of cylinder block 40 in cylinder block 40, when the refrigerant in the pressing chamber 41 reaches certain pressure, the drain tap that is installed in upper bearing 51 upper-end surfaces is opened, compressed refrigerant enters baffler, pore through baffler enters in the closed shell 10 again, when the pressure of pressing chamber descends, drain tap is closed, and prevents that refrigerant from refluxing, and at this moment compressor is in the state that sucks refrigerant.
The flowing state that drain tap is discharged air-flow is the periodically pulsing air-flow, and air-flow has very big impact and variation in pressure.
During rotary compressor work, the switching that reaches drain tap of flowing of gaseous coolant all can cause very strong impact noise, and very wide frequency domain is arranged, it is the main noise source of rotary compressor, have the relatively simple for structure of baffler 80 now, erasure effect is bad, and especially to the noise of particular frequency bands, erasure effect is poorer.
Summary of the invention
Technical problem to be solved by this invention is, a kind of multi-chamber silencer of rotary compressor is provided, and the noise that mobile refrigerant and drain tap are produced is effectively decayed, and reduces the intensity of noise greatly.
The technical solution adopted in the present invention is: baffler is the thin-walled case, profile is the middle porose oblate cylindricality of ring-type, the inner cavity that forms annular, lower openings, cover on the upper bearing top, penetrate the necked part of upper bearing in the hole in the middle of the baffler, baffler is screwed on upper bearing.Improvement of the present invention is: the annular space in the baffler is divided into the chamber that a plurality of refrigerants are expanded with dividing plate, and the pore by refrigerant is arranged on the dividing plate in the middle of the chamber that is connected.First chamber links to each other with drain tap, and last chamber has the pore with airtight casing internal communication.
Described a plurality of chamber is two chambers, and the volume ratio of first chamber and second chamber is 1: 2.
Described a plurality of chamber is three chambers, and the volume ratio of first chamber, second chamber and the 3rd chamber is 1: 2: 4 or is 2: 1: 3.
Described a plurality of chamber is four chambers, and the volume ratio of first chamber, second chamber, the 3rd chamber and the 4th chamber is 2: 1: 3: 1.
Described dividing plate is a planar, is positioned at the baffler annular space radially.
The described last chamber and the pore of airtight casing internal communication are positioned on the sidewall of baffler.
Beneficial effect of the present invention is: gaseous coolant enters the multiple chamber of baffler, through expansion repeatedly, consumes the energy of noise, and effective attenuate acoustic noise reduces the intensity of noise greatly.
Description of drawings
Fig. 1 is the sectional arrangement drawing of rotary compressor;
Fig. 2 is first kind of embodiment's a front elevation;
Fig. 3 is first kind of embodiment's a sectional side view;
Fig. 4 is second kind of embodiment's a front elevation;
Fig. 5 is the third embodiment's a front elevation.
In the drawings:
10. airtight casing 21. stators 22. rotors
30. eccentric shaft 31. eccentric shaft part 40. cylinder block
41. pressing chamber 51. upper bearings 52. lower bearings
60. sucking pipe 70. outlet pipes 80. bafflers
82. 84. second chambeies, dividing plate 83. first chambeies
85. the 3rd chamber 86. relief openings, 87. pores
88. fixing threaded hole 91. dividing plates 92. dividing plates
93. 95. first chambeies, 94. second chambeies, first chamber
96. the 4th chamber, the 3rd chamber 98., second chamber 97.
100. baffler
Embodiment
The structure of compressor of the present invention is: rotary compressor has airtight casing 10, the stator 21 of rotary compressor motor and rotor 22 are installed in the top of casing 10, rotor 22 center fixed have eccentric shaft 30, cylinder of compressor body 40 is positioned at the bottom of airtight casing 10, the eccentric shaft part 31 that eccentric shaft 30 is arranged in the cylindrical cylinder hole of cylinder block 40 central authorities, on the external cylindrical surface of eccentric shaft part 31 rolling rotor is arranged, when eccentric shaft part 31 carries out the circular motion rotation with eccentric shaft 30 in cylinder-bore, the rolling rotor compression enters the gaseous coolant in the cylinder block 40, also has the height of separation in the cylinder block, the baffle plate (not shown) of low pressure area refrigerant, the upper and lower end face of cylinder block 40 is fixed with blanket gas cylinder body end face, and supports the upper bearing 51 and the lower bearing 52 of eccentric shaft 30 rotations.
In the side of airtight casing 10 sucking pipe 60 is arranged, sucking pipe 60 makes refrigerant enter the pressing chamber 41 of compressor cylinder block 40.On the upper-end surface of upper bearing 51 by the drain tap (not shown) is housed, drain tap is discharged to the pressing chamber of refrigerant by cylinder block 40 in the baffler 100, be discharged in the airtight casing 10 by baffler 100 again, there is outlet pipe 70 top of airtight casing 10, and outlet pipe 70 enters the refrigerant in the airtight casing 10 circulatory system of refrigerant.
Fig. 2 is first kind of embodiment's of the present invention a front elevation, Fig. 3 is first kind of embodiment's a sectional side view, baffler 100 is the thin-walled case in the drawings, profile is the middle porose oblate cylindricality of ring-type, the inner cavity that forms annular, lower openings covers on upper bearing 51 tops, penetrate the necked part of upper bearing 51 in the hole in the middle of the baffler, baffler is screwed on upper bearing 51.Annular space in the baffler 100 is divided into the chamber that a plurality of refrigerants are expanded with dividing plate, and the pore by refrigerant is arranged on the dividing plate in the middle of the chamber that is connected.First chamber links to each other with drain tap, makes refrigerant enter baffler, last chamber pore with airtight casing 10 internal communication arranged, refrigerant is entered airtight casing 10 by baffler.。
A plurality of chambers of first kind of embodiment are three chambers, and the volume ratio of first chamber 83, second chamber 84 and the 3rd chamber 85 is 1: 2: 4 or is 2: 1: 3.
A plurality of chambers of second kind of embodiment are two chambers, and the volume ratio of first chamber 93 and second chamber 94 is 1: 2.
A plurality of chambers of the third embodiment are four chambers, and the volume ratio of first chamber 95, second chamber 96, the 3rd chamber 97,98, four chambers of the 4th chamber is 2: 1: 3: 1.
Dividing plate is a planar, is positioned at the baffler annular space radially.
The pore of last chamber and airtight casing internal communication is positioned on the sidewall of baffler.
The clapboard parts of not addressing number is 82,91,92.
After the rolling rotor rotary compressor of said structure is connected power supply, rotor 22 rotations in the airtight casing 10, make the rotation of eccentric shaft 30 and rolling rotor, compression enters the refrigerant of cylinder block 40 in cylinder block 40, when the refrigerant in the pressing chamber 41 reaches certain pressure, the drain tap that is installed in upper bearing 51 upper ends is opened, compressed refrigerant enters baffler, pore through the baffler side enters in the closed shell 10 again, when the pressure of pressing chamber descends, drain tap is closed, and prevents that refrigerant from refluxing, and at this moment compressor is in the state that sucks refrigerant.
The present invention adopts multistage expanssion type noise-cancelling theory, and the periodically pulsing air communication that drain tap is discharged is crossed multistage expansion and reduced noise.The volume ratio of three chambers of first kind of embodiment is 2: 1: 3, there is the drain tap that is positioned at upper bearing 51 upper-end surfaces first chamber 83 belows, drain tap makes air-flow enter first chamber 83, air-flow enters second chamber 84 by first chamber 83 by the pore on the dividing plate 87, second chamber 84 is than the volume reducing of first chamber 83, and then enter the 3rd chamber 85 by the pore 87 on second dividing plate, the 3rd chamber 85 volume maximums, expand in first and the 3rd chamber by making air-flow, in second chamber, compress, the periodically pulsing air-flow forms the turbulent flow of not advising, collide mutually between the air-flow and mix, it is uniform and stable that air-flow becomes, and mobile damping has consumed the kinetic energy of air-flow, is converted to heat energy.Making by the air-flow after the multi-cavity expansion has increased transmission loss, reduces the vibration and the loss of air-flow.
In like manner, Fig. 4 represents second kind of embodiment's front elevation, and a plurality of chambers are two chambers, and the volume ratio of first chamber 93 and second chamber 94 is 1: 2.
Fig. 5 represents the third embodiment's front elevation, and a plurality of chambers are four chambers, and the volume ratio of first chamber 95, second chamber 96, the 3rd chamber 97 and the 4th chamber 98 is 2: 1: 3: 1.
The chamber of different size, structure and quantity, to the noise elimination effect difference of different frequency range noise, the structure of sound proof housing should adapt with the noise properties of compressor.
Claims (6)
1. the multi-chamber silencer of a rotary compressor, comprise baffler (100), baffler (100) is the thin-walled case, profile is the middle porose oblate cylindricality of ring-type, the inner cavity that forms annular, lower openings, cover on upper bearing (51) top, penetrate the necked part of upper bearing (51) in the hole in the middle of the baffler, baffler is screwed on upper bearing (51), it is characterized in that: the annular space in the baffler (100) is divided into a plurality of chambers that make the refrigerant expansion with dividing plate, and the pore by refrigerant is arranged on the dividing plate in the middle of the chamber that is connected.First chamber links to each other with drain tap, and last chamber has the pore with airtight casing internal communication.
2. the multi-chamber silencer of rotary compressor according to claim 1, it is characterized in that: a plurality of chambers are two chambers, first chamber (93) is 1: 2 with the volume ratio of second chamber (94).
3. the multi-chamber silencer of rotary compressor according to claim 1, it is characterized in that: a plurality of chambers are three chambers, the volume ratio of first chamber (83), second chamber (84) and the 3rd chamber (85) is 1: 2: 4 or is 2: 1: 3.
4. the multi-chamber silencer of rotary compressor according to claim 1, it is characterized in that: a plurality of chambers are four chambers, and the volume ratio of first chamber (95), second chamber (96), the 3rd chamber (97) and the 4th chamber (98) is 2: 1: 3: 1.
5. the multi-chamber silencer of rotary compressor according to claim 1, it is characterized in that: dividing plate is a planar, is positioned at the baffler annular space radially.
6. the multi-chamber silencer of rotary compressor according to claim 1, it is characterized in that: the pore of last chamber and airtight casing internal communication is positioned on the sidewall of baffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021170290A CN1299008C (en) | 2002-04-29 | 2002-04-29 | Multi-chamber silencer for rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021170290A CN1299008C (en) | 2002-04-29 | 2002-04-29 | Multi-chamber silencer for rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1455115A CN1455115A (en) | 2003-11-12 |
| CN1299008C true CN1299008C (en) | 2007-02-07 |
Family
ID=29257117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021170290A Expired - Fee Related CN1299008C (en) | 2002-04-29 | 2002-04-29 | Multi-chamber silencer for rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1299008C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4778772B2 (en) * | 2005-10-26 | 2011-09-21 | 日立アプライアンス株式会社 | Rotary compressor |
| CN102499895A (en) * | 2011-10-01 | 2012-06-20 | 韩杰 | Silencer |
| CN104343692B (en) * | 2013-08-07 | 2017-03-01 | 珠海格力节能环保制冷技术研究中心有限公司 | The noise reduction assembly of compressor and there is its compressor |
| CN105221433B (en) * | 2015-10-22 | 2017-11-07 | 安徽美芝精密制造有限公司 | Muffler and the rotary compressor with it |
| CN106286310B (en) * | 2016-10-31 | 2019-06-21 | 重庆凌达压缩机有限公司 | A kind of temperature equipment, compressor and compressor silencer |
| CN110608170A (en) * | 2019-10-30 | 2019-12-24 | 广东美芝精密制造有限公司 | Amortization structure and compressor |
| CN110762016A (en) * | 2019-11-13 | 2020-02-07 | 珠海凌达压缩机有限公司 | A silencer and compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191958A (en) * | 1997-01-06 | 1998-09-02 | 运载器有限公司 | Combination valve for screw compressors |
| US5895208A (en) * | 1996-09-26 | 1999-04-20 | Knf Neuberger Gmbh | Reciprocating piston machine with capillary passages on valves for pressure relief |
| EP0953766A2 (en) * | 1998-04-27 | 1999-11-03 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Control valve |
| DE19939015A1 (en) * | 1998-08-24 | 2000-03-02 | Sanden Corp Isesaki | Compressor for gas-form fluid has suction through passage for fluid feed with control valve controlling open surface of suction through passage |
-
2002
- 2002-04-29 CN CNB021170290A patent/CN1299008C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5895208A (en) * | 1996-09-26 | 1999-04-20 | Knf Neuberger Gmbh | Reciprocating piston machine with capillary passages on valves for pressure relief |
| CN1191958A (en) * | 1997-01-06 | 1998-09-02 | 运载器有限公司 | Combination valve for screw compressors |
| EP0953766A2 (en) * | 1998-04-27 | 1999-11-03 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Control valve |
| DE19939015A1 (en) * | 1998-08-24 | 2000-03-02 | Sanden Corp Isesaki | Compressor for gas-form fluid has suction through passage for fluid feed with control valve controlling open surface of suction through passage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1455115A (en) | 2003-11-12 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070207 |