CN105465992A - Silencing element used in car air-conditioning system - Google Patents
Silencing element used in car air-conditioning system Download PDFInfo
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- CN105465992A CN105465992A CN201410452533.3A CN201410452533A CN105465992A CN 105465992 A CN105465992 A CN 105465992A CN 201410452533 A CN201410452533 A CN 201410452533A CN 105465992 A CN105465992 A CN 105465992A
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- sound wave
- conditioning system
- spiral
- silencing
- input channel
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 12
- 230000030279 gene silencing Effects 0.000 title abstract 7
- 230000003584 silencer Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 230000001743 silencing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 208000032370 Secondary transmission Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The invention discloses a silencing element used in a car air-conditioning system. The silencing element mainly comprises a silencing body, and is characterized in that the silencing body is a spiral silencer arranged inside a rubber hose. The spiral silencer comprises a cylindrical hollow barrel, a spiral blade is arranged on the periphery of the cylindrical hollow barrel, a round hole in the center of the cylindrical hollow barrel forms a main sound wave input passage, and a spiral passage formed by the spiral bade forms a secondary sound wave input passage. The invention discloses a novel noise eliminating method, and the silencing element is installed in the rubber hose in a certain section of a pipeline, so that the mounting space in a car is reduced, and the silencing effect is improved. A welding procedure is eliminated, the cost is reduced, and the environment is protected. Compared with the prior art, the silencing element used in the car air-conditioning system has remarkable substantial characteristics and obvious improvement.
Description
Technical field
The present invention relates to the active noise reduction technical field of automotive air-conditioning system, be specifically related to a kind of for the silencer element in automotive air-conditioning system.
Background technology
Automobile noise is the very important tabulation weighing automobile quality.Client requires more and more higher to the comfortableness of automobile, and each country is more and more tighter to the control of noise pollution, and Foreign Automobile, in the process of new product development, Noise measarement has dropped into a large amount of man power and materials.Abating the noise is one of topmost function of silencer element.In automotive air-conditioning system, usually adopt resistant noise-reducing device, namely add the muffler larger than system pipeline caliber in systems in which, this muffler is generally cylindrical, and make sound wave through muffler, acoustic impedance changes, part acoustic energy is reflected back toward sound source, and transmission acoustic energy is reduced.Thus reach the object of noise reduction.Now pipelines of automobile air conditioner is commercially generally use cylindric muffler, amasss by changing pipe section the effect reaching reflective sound wave.
Summary of the invention
The object of the present invention is to provide a kind of completely newly for the silencer element in automotive air-conditioning system, can production cost be reduced, optimize entrucking free space, reduce noise better.
To achieve these goals, technical scheme of the present invention is: a kind of for the silencer element in automotive air-conditioning system, it mainly comprises sound attenuating body, it is characterized in that: described sound attenuating body is the spirality muffler being placed in sebific duct inside hose, described spirality muffler comprises cylinder type hollow cylinder, spiral vane is arranged with outside cylinder type hollow cylinder, the central round orifice of described cylinder type hollow cylinder forms the main input channel of sound wave, the helical duct that spiral vane is formed, defines the secondary input channel of sound wave.According to a preferred embodiment of the invention, the ratio of the sectional area of the main input channel of sound wave and the sectional area of the secondary input channel of sound wave is 1:2.5 ~ 3.5.
Sound wave is divided into two parts in porch, and no matter be main transmission paths or secondary transmission path, the sectional area in its path all there occurs change, and sound wave acoustic energy generation transmission loss, the effect of noise reduction is played on both sides simultaneously.Simultaneously, the making material selection of this spirality muffler, with the flexible material of sound absorbing capabilities, bending also can play the effect of noise reduction.The invention discloses a kind of brand-new noise cancellation, can realize in a certain section of pipeline, the present invention is arranged in sebific duct flexible pipe; thus reach minimizing entrucking space; improve erasure effect, eliminate the operation of welding simultaneously, decrease cost and protection of the environment.Product has outstanding substantive distinguishing features and marked improvement compared to existing technologies.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of spirality muffler of the present invention.
Detailed description of the invention
With reference to the accompanying drawings, the present invention is described further.
As depicted in figs. 1 and 2, the present invention is a kind of for the silencer element in automotive air-conditioning system, it mainly comprises sound attenuating body, it is characterized in that: described sound attenuating body is the spirality muffler being placed in sebific duct inside hose, it is different from prior art and is: described spirality muffler comprises the cylinder type hollow cylinder 1 being placed in sebific duct flexible pipe 4 inside, the central round orifice 2 of described cylinder type hollow cylinder 1 forms the main input channel of sound wave, blade 3 is with outside this cylinder type hollow cylinder, blade twist, the helical duct that spiral vane 3 is formed, form the secondary input channel of sound wave.The angle of inclination of spiral vane is 15 ~ 25 degree, and the maximum gauge (i.e. the diameter of spiral vane outmost turns) of spirality muffler is approximately 1.4 ~ 1.6 times of cylinder type hollow drum diameter.The wall thickness of described cylinder type hollow cylinder 1 is 0.7 ~ 0.9mm.Described Novel muffler select flexible better, flexible and with the soft material of sound-absorbing effect, the material that present stage adopts is PA6, and this material has very strong shock-absorbing performance and performance muffler.The flexible pipe of position in pipeline assembly installed, sebific duct is inner, according to the difference of pipeline size, use the muffler of different size, the maximum gauge of general spirality muffler is 15mm--20mm, and length is at 180mm-240mm.After tested, when the angle of inclination of spiral vane is 15 ~ 25 degree, when the ratio of the sectional area of the main input channel of sound wave and the sectional area of the secondary input channel of sound wave is 1:2.5 ~ 3.5, erasure effect is best.According to a particular embodiment of the invention, sebific duct internal diameter 5/8(is about 15.18mm), then the cross section of the main input channel of sound wave is the center hole of cylinder type hollow cylinder, namely internal diameter is the circular hole of 7.5mm, the cross section of the secondary input channel of sound wave is internal diameter is 7.5mm, and external diameter is the annular of 15.18mm, like this, the area of annular should be 3 times of center hole area, and the ratio of the sectional area of the main input channel of sound wave and the sectional area of the secondary input channel of sound wave should be 1:3 in other words.
Reach a conclusion by experiment, Novel muffler of the present invention is compared old-fashioned muffler and is increased significantly on performance muffler.It has better performance muffler, lower cost consumption.Entrucking space has been saved in built-in mounting means optimization.The present invention is that the reform of follow-up noise reduction mode and silencer element lays the foundation, and extended products specification Improving The Quality of Products, can obtain economic and social benefit potential more greatly.
Claims (2)
1. one kind for the silencer element in automotive air-conditioning system, it mainly comprises sound attenuating body, it is characterized in that: described sound attenuating body is the spirality muffler being placed in sebific duct inside hose, described spirality muffler comprises cylinder type hollow cylinder, spiral vane is arranged with outside cylinder type hollow cylinder, the central round orifice of described cylinder type hollow cylinder forms the main input channel of sound wave, and the helical duct that spiral vane is formed defines the secondary input channel of sound wave.
2. as claimed in claim 1 for the silencer element in automotive air-conditioning system, it is characterized in that the ratio of the sectional area of the main input channel of sound wave and the sectional area of the secondary input channel of sound wave is 1:2.5 ~ 3.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452533.3A CN105465992B (en) | 2014-09-05 | 2014-09-05 | Silencing element for automobile air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452533.3A CN105465992B (en) | 2014-09-05 | 2014-09-05 | Silencing element for automobile air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465992A true CN105465992A (en) | 2016-04-06 |
| CN105465992B CN105465992B (en) | 2024-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410452533.3A Active CN105465992B (en) | 2014-09-05 | 2014-09-05 | Silencing element for automobile air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465992B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845120A (en) * | 2016-05-24 | 2016-08-10 | 翟芳芳 | Silencer, atomizer, and design methods of silencer and silencer spiral body |
| CN107339316A (en) * | 2017-07-24 | 2017-11-10 | 上海蓝恩控制***有限公司 | A kind of star jacket structure of automobile guy cable |
| CN113815834A (en) * | 2021-10-08 | 2021-12-21 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Marine air conditioner air distributor with helical blades |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050011700A1 (en) * | 2003-07-14 | 2005-01-20 | Dadd Paul M. | Devices for regulating pressure and flow pulses |
| US20050016792A1 (en) * | 2001-12-22 | 2005-01-27 | Mann + Hummel Gmbh | Noise suppressor apparatus for a gas duct |
| CN102011629A (en) * | 2010-12-31 | 2011-04-13 | 广东联塑机器制造有限公司 | Exhaust silencer |
| CN202007696U (en) * | 2010-12-31 | 2011-10-12 | 广东联塑机器制造有限公司 | Exhaust silencer |
| CN102261528A (en) * | 2011-07-14 | 2011-11-30 | 上海森风特机电设备有限公司 | Flexible metal buckled muffling and ventilating hose |
-
2014
- 2014-09-05 CN CN201410452533.3A patent/CN105465992B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050016792A1 (en) * | 2001-12-22 | 2005-01-27 | Mann + Hummel Gmbh | Noise suppressor apparatus for a gas duct |
| US20050011700A1 (en) * | 2003-07-14 | 2005-01-20 | Dadd Paul M. | Devices for regulating pressure and flow pulses |
| CN102011629A (en) * | 2010-12-31 | 2011-04-13 | 广东联塑机器制造有限公司 | Exhaust silencer |
| CN202007696U (en) * | 2010-12-31 | 2011-10-12 | 广东联塑机器制造有限公司 | Exhaust silencer |
| CN102261528A (en) * | 2011-07-14 | 2011-11-30 | 上海森风特机电设备有限公司 | Flexible metal buckled muffling and ventilating hose |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845120A (en) * | 2016-05-24 | 2016-08-10 | 翟芳芳 | Silencer, atomizer, and design methods of silencer and silencer spiral body |
| CN107339316A (en) * | 2017-07-24 | 2017-11-10 | 上海蓝恩控制***有限公司 | A kind of star jacket structure of automobile guy cable |
| CN113815834A (en) * | 2021-10-08 | 2021-12-21 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Marine air conditioner air distributor with helical blades |
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| Publication number | Publication date |
|---|---|
| CN105465992B (en) | 2024-05-28 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 201204 Shanghai city Pudong New Area Lianxi Road No. 1188 Applicant after: SHANGHAI AUTOMOBILE & AIR CONDITIONING ACCESSORIES CO.,LTD. Address before: 201204 Shanghai city Pudong New Area Lianxi Road No. 1188 Applicant before: SHANGHAI AUTOMOBILE AIR-CONDITIONER ACCESSORY Co.,Ltd. Country or region before: China |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |