CN1763378A - Compressors muffler with resonance cavity - Google Patents
Compressors muffler with resonance cavity Download PDFInfo
- Publication number
- CN1763378A CN1763378A CN 200410072362 CN200410072362A CN1763378A CN 1763378 A CN1763378 A CN 1763378A CN 200410072362 CN200410072362 CN 200410072362 CN 200410072362 A CN200410072362 A CN 200410072362A CN 1763378 A CN1763378 A CN 1763378A
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- China
- Prior art keywords
- compressor
- resonant cavity
- muffler
- cavity
- silencing apparatus
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a compressor silencer with cavity, which comprises the following parts: silencer on the compressor top bearing, cavity on each side of silencer center through connecting slot, outlet hole on the cavity with one side near the circumference. The invention adapts Homhouze cavity to absorb special frequency band noise, which reduces noise by two decibel.
Description
Technical field
The present invention relates to a kind of silencing apparatus of compressor, particularly a kind of compressor muffler that has resonant cavity.
Background technique
Fig. 1 is the worm's eye view of existing compressor muffler, and Fig. 2 is the A-A sectional drawing of Fig. 1, as representing among the figure, is fixed with blanket gas cylinder body end face at the upper and lower end face of cylinder of compressor body, and supports the upper bearing and the lower bearing of eccentric shaft rotation.The drain tap (not shown) is installed on the upper-end surface of upper bearing, drain tap is discharged to the compression chamber of refrigerant by cylinder block in the silencing apparatus, again by being discharged in the silencing apparatus in the airtight casing, there is outlet pipe the top of airtight casing, and outlet pipe enters the refrigerant in the airtight casing circulatory system of refrigerant.
After the compressor of said structure is connected power supply, rotor rotation in the airtight casing, make the rotation of eccentric shaft and rolling rotor, compression enters the refrigerant of cylinder block in cylinder block, when the refrigerant in the compression chamber reaches certain pressure, the drain tap that is installed in the upper bearing upper-end surface is opened, compressed refrigerant enters silencing apparatus, exhaust port through silencing apparatus enters in the closed shell again, when the pressure of compression chamber descends, drain tap is closed, and prevents that refrigerant from refluxing, and at this moment compressor is in the state that sucks refrigerant.
Silencing apparatus 3 ' the be installed in top of upper bearing, silencing apparatus 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 silencing apparatus, silencing apparatus is screwed on upper bearing.The upper-end surface of silencing apparatus and upper bearing surrounds cavity.
When compressor operating, 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, and is the main noise source of compressor.Carry out noise reduction by expansion baffler volume, erasure effect is bad, and especially to the noise of particular frequency bands, erasure effect is poorer.Not obvious to the existing baffler erasure effect of some unusual high high frequency noise, the noise of these abnormal frequencies is bigger to the overall noise influence of compressor.
Summary of the invention
At the deficiency on the acoustic wave filter structure in the prior art, the purpose of this invention is to provide a kind of compressor muffler that has resonant cavity, utilize Helmholtz resonant cavity principle that characteristic frequency is played the noise elimination effect, improve erasure effect.
For achieving the above object, technological scheme of the present invention provides a kind of compressor muffler that has resonant cavity, include the silencing apparatus that is fixed in the compressor upper bearing, wherein: be respectively equipped with the resonant cavity that connects by connecting groove in the both sides of silencing apparatus center hole, wherein a side has exhaust port by on the resonant cavity of circumference.
Effect of the present invention is that this technology is the compressor muffler that has resonant cavity by changing acoustic wave filter structure, particularly to the noise of particular frequency bands, utilizes Helmholtz resonant cavity principle that characteristic frequency is played the noise elimination effect, and erasure effect obviously improves; Through verification experimental verification, adopting new silencing apparatus compressor overall noise than using original silencing apparatus overall noise has 2 decibels reduction.
Description of drawings
Fig. 1 is the worm's eye view of existing compressor muffler;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the plan view of compressor muffler of the present invention;
Fig. 4 is the B-B sectional drawing of Fig. 3.
Embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated the compressor muffler that has resonant cavity of the present invention.
Fig. 3 is the worm's eye view of compressor muffler of the present invention, and Fig. 4 is the B-B sectional drawing of Fig. 3.Shown in Fig. 3,4, the compressor muffler that has resonant cavity of the present invention, its structure includes the compressor muffler that has resonant cavity that is installed in the upper bearing top that has exhaust port, be respectively equipped with the resonant cavity that connects by connecting groove in the both sides of silencing apparatus center hole, wherein a side has exhaust port by on the resonant cavity of circumference.
The compressor muffler that the present invention has resonant cavity is achieved in that
The present invention at first changes the compressor muffler internal structure on structure, increased resonant cavity.After compressor muffler is stamped muffler the inside plate 1 and silencer casing 2, form compressor muffler 3 through welding.A side has exhaust port by on the resonant cavity of circumference in the plate 1 of compressor muffler the inside, is formed with connecting groove in the middle of it, also is formed with resonant cavity at the opposite side of connecting groove by central hole.
Claims (1)
1, a kind of compressor muffler that has resonant cavity, include the silencing apparatus that is fixed in the compressor upper bearing, it is characterized in that: be respectively equipped with the resonant cavity that connects by connecting groove in the both sides of silencing apparatus center hole, wherein a side has exhaust port by on the resonant cavity of circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410072362 CN1763378A (en) | 2004-10-21 | 2004-10-21 | Compressors muffler with resonance cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410072362 CN1763378A (en) | 2004-10-21 | 2004-10-21 | Compressors muffler with resonance cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1763378A true CN1763378A (en) | 2006-04-26 |
Family
ID=36747662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410072362 Pending CN1763378A (en) | 2004-10-21 | 2004-10-21 | Compressors muffler with resonance cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1763378A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863819A (en) * | 2015-04-07 | 2015-08-26 | 珠海凌达压缩机有限公司 | Design method of compressor silencing structure |
| CN113007097A (en) * | 2021-03-25 | 2021-06-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Flange structure, compressor and air conditioner |
-
2004
- 2004-10-21 CN CN 200410072362 patent/CN1763378A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863819A (en) * | 2015-04-07 | 2015-08-26 | 珠海凌达压缩机有限公司 | Design method of compressor silencing structure |
| CN104863819B (en) * | 2015-04-07 | 2017-03-15 | 珠海凌达压缩机有限公司 | Design method of compressor silencing structure |
| CN113007097A (en) * | 2021-03-25 | 2021-06-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Flange structure, compressor and air conditioner |
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Legal Events
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|---|---|---|---|
| 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 |