CN1542284A - Porous intervention type silencer for rotary compressor - Google Patents
Porous intervention type silencer for rotary compressor Download PDFInfo
- Publication number
- CN1542284A CN1542284A CNA031240992A CN03124099A CN1542284A CN 1542284 A CN1542284 A CN 1542284A CN A031240992 A CNA031240992 A CN A031240992A CN 03124099 A CN03124099 A CN 03124099A CN 1542284 A CN1542284 A CN 1542284A
- Authority
- CN
- China
- Prior art keywords
- baffler
- small
- exhaust holes
- exhaust port
- rotary compressor
- 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.)
- Pending
Links
Images
Abstract
The multiholed interference silencer for rotary compressor is annular thin-wall cover casing with center hole, annular inside cavity and opened lower part. It is screwed to cover the upper bearing and the shaft neck is made to pass through center hole. The upper end of the annular inside cavity has large exhaust holes and small exhaust holes separated by 150-180 deg, the 1-3 large exhaust holes are in 3-8 mm diameter and the 2-4 small exhaust holes are in 2-4 mm diameter. When the gaseous cooling medium passes through the large exhaust holes and the small exhaust holes, the same gas flow phase results in mutual interference to attenuate noise effectively and lower the noise strength greatly, with the damping of the large exhaust holes and the small exhaust holes consuming also the noise energy.
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 1, the stator 2 of rotary compressor motor and rotor 3 are installed in the top of airtight casing 1, rotor 3 center fixed have eccentric shaft 4, cylinder of compressor body 8 is positioned at the bottom of airtight casing 1, the eccentric shaft part 9 that eccentric shaft 4 is arranged in the cylindrical cylinder hole of cylinder block 8 central authorities, on the external cylindrical surface of eccentric shaft part 9 rolling rotor is arranged, when eccentric shaft part 9 carries out the circular motion rotation with eccentric shaft 4 in cylinder-bore, the rolling rotor compression enters the gaseous coolant in the cylinder block 8, also has the height of separation in the cylinder block, the baffle plate (not shown) of low pressure area refrigerant, on the cylinder block 8, the lower end surface is fixed with blanket gas cylinder body end face, and supports the upper bearing 7 and the lower bearing 13 of eccentric shaft 4 rotations.
In the side of airtight casing 1 sucking pipe 14 is arranged, sucking pipe 14 enters in the pressing chamber 12 of compressor cylinder block 8 refrigerant.On the upper-end surface of upper bearing 7 by the drain tap (not shown) is housed, drain tap is discharged to the pressing chamber of refrigerant by cylinder block 8 in the baffler 6, again by being discharged in the baffler 6 in the airtight casing 1, there is outlet pipe 10 top of airtight casing 1, and outlet pipe 10 enters the refrigerant in the airtight casing 1 circulatory system of refrigerant.Baffler 6 is installed above upper bearing 7, baffler 6 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 7 tops, penetrate the necked part of upper bearing 7 in the hole in the middle of the baffler 6, baffler 6 is screwed on upper bearing 7.The upper-end surface of baffler 6 and upper bearing 7 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 6, the exhaust port 5 through baffler 6 enters in the closed shell 1 again.
After the rolling rotor rotary compressor of said structure is connected power supply, rotor 3 rotations in the airtight casing 1, make the rotation of eccentric shaft 4 and rolling rotor, compression enters the refrigerant of cylinder block 8 in cylinder block 8, when the refrigerant in the pressing chamber 12 reaches certain pressure, the drain tap that is installed in upper bearing 7 upper-end surfaces is opened, compressed refrigerant enters baffler 6, exhaust port 5 through baffler 6 enters in the closed shell 1 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 6 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 porous interference type baffler 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: there are big exhaust port and small de-air hole in baffler annular space upper-end surface, and big exhaust port and small de-air hole are along diametric(al) 150 ° of-180 ° of distributions of being separated by, and big exhaust port is 1-3, and small de-air hole is 2-4.
Described big exhaust port aperture is 8 millimeters of Φ 3-Φ, and the small de-air hole aperture is 4 millimeters of Φ 2-Φ.
Described big exhaust port is 1, and the aperture is 4.6 millimeters of Φ, and small de-air hole is 3, and the aperture is 2.2 millimeters of Φ.
Beneficial effect of the present invention is: gaseous coolant enters baffler, large and small exhaust port by baffler enters in the closed shell again, gaseous coolant is during by big exhaust port and small de-air hole, the pneumatic noise phase place difference of big exhaust port and small de-air hole, produce mutually and interfere, effective attenuate acoustic noise reduces the intensity of noise greatly, and the damping of big exhaust port and small de-air hole also consumes the energy of noise.
Description of drawings
Fig. 1 is the sectional arrangement drawing of existing rotary compressor.
Fig. 2 is the front elevation of the embodiment of the invention.
Fig. 3 is the A-A sectional drawing of the embodiment of the invention.
In the drawings:
1. airtight casing 2. stators 3. rotors
4. eccentric shaft 5. exhaust ports 6. bafflers
7. upper bearing 8. cylinder block 9. eccentric shaft parts
10. outlet pipe 12. pressing chambers 13. lower bearings
14. sucking pipe 100. bafflers 101. big exhaust ports
102. small de-air hole
Embodiment
The structure of compressor of the present invention is: rotary compressor has airtight casing 1, the stator 2 of rotary compressor motor and rotor 3 are installed in the top of airtight casing 1, rotor 3 center fixed have eccentric shaft 4, cylinder of compressor body 8 is positioned at the bottom of airtight casing 1, the eccentric shaft part 9 that eccentric shaft 4 is arranged in the cylindrical cylinder hole of cylinder block 8 central authorities, on the external cylindrical surface of eccentric shaft part 9 rolling rotor is arranged, when eccentric shaft part 9 carries out the circular motion rotation with eccentric shaft 4 in cylinder-bore, the rolling rotor compression enters the gaseous coolant in the cylinder block 8, 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 8 is fixed with blanket gas cylinder body end face, and supports the upper bearing 7 and the lower bearing 13 of eccentric shaft 4 rotations.
In the side of airtight casing 1 sucking pipe 14 is arranged, sucking pipe 14 makes refrigerant enter the pressing chamber 12 of compressor cylinder block 8.On the upper-end surface of upper bearing 7 by the drain tap (not shown) is housed, drain tap is discharged to the pressing chamber of refrigerant by cylinder block 8 in the baffler 100, be discharged in the airtight casing 1 by baffler 100 again, there is outlet pipe 10 top of airtight casing 1, and outlet pipe 10 enters the refrigerant in the airtight casing 1 circulatory system of refrigerant.
Fig. 2 is the front elevation of the embodiment of the invention.Fig. 3 is the A-A sectional drawing of the embodiment of the invention.Baffler 100 is the thin-walled case in the drawings, and profile is the middle porose oblate cylindricality of ring-type, the inner cavity that forms annular, lower openings, cover on upper bearing 7 tops, penetrate the necked part of upper bearing 7 in the hole in the middle of the baffler 100, baffler 100 is screwed on upper bearing 7.There are big exhaust port 101 and small de-air hole 102 in the upper-end surface of baffler 100 annular spaces, big exhaust port 101 and small de-air hole 102 are along diametric(al) 150 ° of-180 ° of distributions of being separated by, big exhaust port 101 is 1-3, small de-air hole 102 is 2-4, big exhaust port aperture is 8 millimeters of Φ 3-Φ, and the small de-air hole aperture is 4 millimeters of Φ 2-Φ.
The big exhaust port 101 of the embodiment of the invention is 1, and the aperture is 4.6 millimeters of Φ, and small de-air hole 102 is 3, and the aperture is 2.2 millimeters of Φ.
After the rolling rotor rotary compressor of said structure is connected power supply, rotor 3 rotations in the airtight casing 1, make the rotation of eccentric shaft 4 and rolling rotor, compression enters the refrigerant of cylinder block 8 in cylinder block 8, when the refrigerant in the pressing chamber 12 reaches certain pressure, the drain tap that is installed in upper bearing 7 upper ends is opened, compressed refrigerant enters baffler 100, pore through baffler 100 enters in the closed shell 1 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 gaseous coolant to enter baffler 100, large and small exhaust port by baffler 100 enters in the closed shell 1 again, gaseous coolant is during by big exhaust port 101 and small de-air hole 102, the pneumatic noise phase place difference of big exhaust port 101 and small de-air hole 102, produce mutually and interfere, effective attenuate acoustic noise reduces the intensity of noise greatly, and the damping of big exhaust port 101 and small de-air hole 102 also consumes the energy of noise.
The exhaust port of different size, structure and quantity, to the noise elimination effect difference of different frequency range noise, the structure of silencing apparatus should adapt with the noise properties of compressor, and the structure of the embodiment of the invention is suitable for because the motor rotation produces the situation of high pressure draught noise.
Claims (3)
1. the porous interference type baffler 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 (7) top, penetrate the necked part of upper bearing (7) in the hole in the middle of the baffler, baffler is screwed on upper bearing (7), it is characterized in that: there are big exhaust port (101) and small de-air hole (102) in baffler annular space upper-end surface, and big exhaust port (101) and small de-air hole (102) are along diametric(al) 150 ° of-180 ° of distributions of being separated by, big exhaust port (101) is 1-3, and small de-air hole (102) is 2-4.
2. the porous interference type baffler of rotary compressor according to claim 1 is characterized in that: big exhaust port (101) aperture is 8 millimeters of Φ 3-Φ, and small de-air hole (102) aperture is 4 millimeters of Φ 2-Φ.
3. the porous interference type baffler of rotary compressor according to claim 1 is characterized in that: big exhaust port (101) is 1, and the aperture is 4.6 millimeters of Φ, and small de-air hole (102) is 3, and the aperture is 2.2 millimeters of Φ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031240992A CN1542284A (en) | 2003-05-01 | 2003-05-01 | Porous intervention type silencer for rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031240992A CN1542284A (en) | 2003-05-01 | 2003-05-01 | Porous intervention type silencer for rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1542284A true CN1542284A (en) | 2004-11-03 |
Family
ID=34321569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031240992A Pending CN1542284A (en) | 2003-05-01 | 2003-05-01 | Porous intervention type silencer for rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1542284A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455813C (en) * | 2004-11-30 | 2009-01-28 | 乐金电子(天津)电器有限公司 | Anti-leakage device of silencer of rotary compressor |
| CN101331323B (en) * | 2005-12-28 | 2012-04-18 | 大金工业株式会社 | Compressor |
| US10180140B2 (en) | 2016-09-30 | 2019-01-15 | Ingersoll-Rand Company | Pulsation damper for compressors |
-
2003
- 2003-05-01 CN CNA031240992A patent/CN1542284A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455813C (en) * | 2004-11-30 | 2009-01-28 | 乐金电子(天津)电器有限公司 | Anti-leakage device of silencer of rotary compressor |
| CN101331323B (en) * | 2005-12-28 | 2012-04-18 | 大金工业株式会社 | Compressor |
| US10180140B2 (en) | 2016-09-30 | 2019-01-15 | Ingersoll-Rand Company | Pulsation damper for compressors |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1749564A (en) | Compressor having discharge mufflers | |
| CN1117929C (en) | Rotary compressor | |
| CN1299008C (en) | Multi-chamber silencer for rotary compressor | |
| CN1542284A (en) | Porous intervention type silencer for rotary compressor | |
| CN100343532C (en) | Inner-intubation silencer for rotary compressor | |
| CN100343531C (en) | Micropole diffusor of rotary compressor | |
| KR100556970B1 (en) | Discharge apparatus for rotary system twin compressor | |
| CN1278043C (en) | Enclosed compressor | |
| CN1580574A (en) | Silencing device of compressor | |
| KR100310441B1 (en) | A baffle of discharge muffler for compressor form air-tight type retern pose | |
| CN1712726A (en) | Silencer of closed compressor | |
| CN1580572A (en) | Silencer of rotary compressor | |
| CN1548753A (en) | Closed rotary compressor | |
| CN101319676A (en) | Silencing device on lower bearing of compressor | |
| CN1093605C (en) | Noise reducing structure for hermetically sealed compressor | |
| CN100465453C (en) | Compressor air-exhaust structure | |
| CN1311395A (en) | Valve mechanism used for reciprocating and sealing type compressor | |
| CN1916424A (en) | Exhaust structure of main bearing and rotation axis in revolve type compressor | |
| CN1880774A (en) | Muffler for hermetic rotary compressor | |
| CN1782432A (en) | Bottom silencer structure of rotary double pressure cylinder compressor | |
| JPH09151890A (en) | Hermetic type rotary compressor | |
| CN2869390Y (en) | Sealed rotary compressor casing and cylinder fixing structure | |
| KR20050040410A (en) | Muffler structure of hermetic rotary compressor | |
| KR100332782B1 (en) | Structure for reduction of noise in rotary compressor | |
| CN1763377A (en) | Muffler of closed type rolling rotor compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |