CN204357532U - A kind of resonant cavity composite structure of variable-volume - Google Patents
A kind of resonant cavity composite structure of variable-volume Download PDFInfo
- Publication number
- CN204357532U CN204357532U CN201420854007.5U CN201420854007U CN204357532U CN 204357532 U CN204357532 U CN 204357532U CN 201420854007 U CN201420854007 U CN 201420854007U CN 204357532 U CN204357532 U CN 204357532U
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- China
- Prior art keywords
- resonant cavity
- partition plate
- cavity
- draw
- groove
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- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000005192 partition Methods 0.000 claims abstract description 24
- 230000003584 silencer Effects 0.000 claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000008030 elimination Effects 0.000 abstract description 14
- 238000003379 elimination reaction Methods 0.000 abstract description 14
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to a kind of resonant cavity composite structure of variable-volume, comprise the resonant cavity cavity be located on main pipeline, also comprise multiple silencer muffler partition plate for being separated by resonant cavity cavity, described resonant cavity cavity is by the through connection main pipeline of multiple resonant cavity connecting tube, be provided with between adjacent resonant cavity connecting tube and organize draw-in groove more, described multiple silencer muffler partition plate is located on draw-in groove.Compared with prior art, the utility model, by changing the mounting point of silencer muffler partition plate, changes the frequency of noise elimination of each resonant cavity after separation, to meet different noise elimination demands, has advantages such as reducing costs, versatility is good.
Description
Technical field
The utility model relates to a kind of resonant cavity, especially relates to a kind of resonant cavity composite structure of variable-volume.
Background technique
At present, in air filter systems development process, in order to save development cost and die cost, the motor of different model, discharge capacity usually shares a set of air filter system.Air filter system however due to the noise characteristic of different displacements motor different, often need the silencing apparatus that noise elimination parameter is different.Therefore, how to make a set of air filter system meet different model, difficult point that the noise elimination demand of displacement engine becomes this type of design problem.In existing solution, different model, displacement engine can only share the part in air filter system, and noise elimination subtense angle can not share, and often need for corresponding noise elimination subtense angle developed separately by different motors.Conventional noise elimination subtense angle adopts the resonant cavity of different volumes to eliminate the noise.
Model utility content
The purpose of this utility model is exactly provide a kind of resonant cavity composite structure of variable-volume to overcome defect that above-mentioned prior art exists, the structure of draw-in groove and silencer muffler partition plate is provided with in resonant cavity inside cavity, by changing the mounting point of silencer muffler partition plate, change the frequency of noise elimination of each resonant cavity after separation, to meet different noise elimination demands.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of resonant cavity composite structure of variable-volume, comprise the resonant cavity cavity be located on main pipeline, also comprise multiple silencer muffler partition plate for being separated by resonant cavity cavity, described resonant cavity cavity is by the through connection main pipeline of multiple resonant cavity connecting tube, be provided with between adjacent resonant cavity connecting tube and organize draw-in groove more, described multiple silencer muffler partition plate is located on draw-in groove.
One or two silencer muffler partition plate is provided with between described adjacent resonant cavity connecting tube.
The length thereof of described multiple resonant cavity connecting tube is equal or all unequal.
Seal weatherstrip is provided with in described draw-in groove.
Described silencer muffler partition plate is the dividing plate be made of plastics.
Compared with prior art, the utility model has the following advantages:
One, reduce costs: for different noise elimination demands, only in assembly process, need add silencer muffler partition plate in different positions, therefore a set of sound-attenuating system meets the engine noise-suppression demand of different model, discharge capacity, reduces die cost, development cost;
Two, versatility is good: only need the riding position changing dividing plate, just can be applied to different motors.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the utility model embodiment two;
Fig. 3 is the structural representation of the utility model embodiment three.
In figure: 1, main pipeline, 2, resonant cavity cavity, 3, silencer muffler partition plate, 4, draw-in groove, 5, resonant cavity connecting tube.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed mode of execution and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment one
A kind of resonant cavity composite structure of variable-volume, comprise the resonant cavity cavity 2 be located on main pipeline 1, also comprise multiple silencer muffler partition plate 3 for being separated by resonant cavity cavity 2, resonant cavity cavity 2 is by the through connection main pipeline 1 of multiple resonant cavity connecting tube 5, be provided with many group draw-in grooves 4 between adjacent resonant cavity connecting tube 5, multiple silencer muffler partition plate 3 is located on draw-in groove 4 in various combination mode.The dividing plate of silencer muffler partition plate 3 for being made of plastics.Seal weatherstrip is provided with in draw-in groove 4.
One or two silencer muffler partition plate 3 is provided with between adjacent resonant cavity connecting tube 5.As shown in Figure 1, resonant cavity connecting tube 5 is three, two draw-in grooves 4 are provided with between adjacent resonant cavity connecting tube 5, from left to right label is the first draw-in groove, the second draw-in groove, the 3rd draw-in groove and the 4th draw-in groove successively, silencer muffler partition plate 3 is two, arrange respectively in the first draw-in groove and the 3rd draw-in groove, arrow is airflow direction.
The length thereof of multiple resonant cavity connecting tube 5 is equal or all unequal.As shown in Figure 1, the length of resonant cavity connecting tube 5 from left to right increases successively.
Working principle:
Several resonant cavity cavitys 2 are fused into a large cavity by the resonant cavity composite structure of variable-volume, and in this large cavity, reserve the draw-in groove 4 can laying silencer muffler partition plate 3, and several resonant cavity connecting tubes 5.For the concrete noise elimination demand of the motor of different model, discharge capacity, obtain corresponding required frequency of noise elimination parameter by the method calculated, test.By changing the mounting point of silencer muffler partition plate 3 in resonant cavity on native system, change the frequency of noise elimination of each resonant cavity, to meet different noise elimination demands.Thus the sound-attenuating system of the motor of different model, discharge capacity can use same set of mould, the low exploitation of a step-down of going forward side by side, die cost.
Embodiment two
The difference of the present embodiment and embodiment one is, two silencer muffler partition plates 3 are separately positioned in the second draw-in groove and the 4th draw-in groove.
Embodiment three
The difference of the present embodiment and embodiment one is, silencer muffler partition plate 3 is three, is separately positioned in the first draw-in groove, the second draw-in groove and the 3rd draw-in groove.
Claims (5)
1. the resonant cavity composite structure of a variable-volume, comprise the resonant cavity cavity be located on main pipeline, it is characterized in that, also comprise multiple silencer muffler partition plate for being separated by resonant cavity cavity, described resonant cavity cavity is by the through connection main pipeline of multiple resonant cavity connecting tube, be provided with between adjacent resonant cavity connecting tube and organize draw-in groove more, described multiple silencer muffler partition plate is located on draw-in groove.
2. the resonant cavity composite structure of a kind of variable-volume according to claim 1, is characterized in that, is provided with one or two silencer muffler partition plate between described adjacent resonant cavity connecting tube.
3. the resonant cavity composite structure of a kind of variable-volume according to claim 1, is characterized in that, the length thereof of described multiple resonant cavity connecting tube is equal or all unequal.
4. the resonant cavity composite structure of a kind of variable-volume according to claim 1, is characterized in that, is provided with seal weatherstrip in described draw-in groove.
5. the resonant cavity composite structure of a kind of variable-volume according to claim 1, is characterized in that, described silencer muffler partition plate is the dividing plate be made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854007.5U CN204357532U (en) | 2014-12-24 | 2014-12-24 | A kind of resonant cavity composite structure of variable-volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854007.5U CN204357532U (en) | 2014-12-24 | 2014-12-24 | A kind of resonant cavity composite structure of variable-volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204357532U true CN204357532U (en) | 2015-05-27 |
Family
ID=53259007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420854007.5U Expired - Fee Related CN204357532U (en) | 2014-12-24 | 2014-12-24 | A kind of resonant cavity composite structure of variable-volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204357532U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481420A (en) * | 2016-05-09 | 2017-03-08 | 徐工集团工程机械有限公司 | Silencer, engine and engineering mechanical device |
| CN109707596A (en) * | 2018-11-16 | 2019-05-03 | 青岛海尔股份有限公司 | Silencing means and refrigerator with it |
| CN111503410A (en) * | 2020-04-01 | 2020-08-07 | 西安交通大学 | Helmholtz type silencer |
-
2014
- 2014-12-24 CN CN201420854007.5U patent/CN204357532U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481420A (en) * | 2016-05-09 | 2017-03-08 | 徐工集团工程机械有限公司 | Silencer, engine and engineering mechanical device |
| CN106481420B (en) * | 2016-05-09 | 2019-08-23 | 徐工集团工程机械有限公司 | Silencer, engine and engineering mechanical device |
| CN109707596A (en) * | 2018-11-16 | 2019-05-03 | 青岛海尔股份有限公司 | Silencing means and refrigerator with it |
| CN111503410A (en) * | 2020-04-01 | 2020-08-07 | 西安交通大学 | Helmholtz type silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20171224 |