CN201292993Y - Ventilation noise deadener - Google Patents
Ventilation noise deadener Download PDFInfo
- Publication number
- CN201292993Y CN201292993Y CNU2008201403955U CN200820140395U CN201292993Y CN 201292993 Y CN201292993 Y CN 201292993Y CN U2008201403955 U CNU2008201403955 U CN U2008201403955U CN 200820140395 U CN200820140395 U CN 200820140395U CN 201292993 Y CN201292993 Y CN 201292993Y
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- Prior art keywords
- anechoic sheet
- housing
- shell
- utility
- sheet
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- Expired - Lifetime
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Duct Arrangements (AREA)
Abstract
The utility model discloses a ventilating muffler which comprises a shell provided with an air inlet and an air outlet as well as a plurality of sets of muffling sheets arranged in the shell. The shell is integrally surrounded by sound insulation materials; the height of each muffling sheet is less than the inside diameter of the shell; the muffling sheets are installed inside the shell in a longitudinally-distributed way and are arranged at intervals in an interlaced mode. The utility model adopts the plurality of sets of flat or columniform muffling sheets which are arranged at intervals in an interlaced mode to combine a wave form or curved surface with enhanced sound-absorbing and shock-absorption effect, thereby the structure can reduce the windage resistance and also lower the noise of a blower.
Description
Technical field
The utility model belongs to a kind of silencing equipment, is to be applicable to the turnover wind noise that reduces all kinds of blower fans.
Background technique
The existing equipment that is used to reduce blower fan turnover noise mainly contains following several: straighttube-type, drum type and pore type.Straighttube-type silencing apparatus acoustic attenuation performance is stable, and sound deadening capacity is big, and resistance is little, but only is fit to low air quantity, and when air quantity was big, sound wave became narrow beam to pass through from channel center, and the sound deadening capacity of silencing apparatus obviously descends; The drum type silencing apparatus though can be applied to big air quantity situation, because there is a cylinder at the center, has increased windage, and when air quantity surpassed to a certain degree, the effect of noise elimination obviously descended; Micropunch plate muffler, it is respond well to eliminate the noise, but technology and structure are all comparatively complicated, and the big ventilation effect of windage is undesirable.
The model utility content
The utility model provides a kind of ventilation silencer, and it adopts the bloop of many flat sheets of group or column, when helping reducing windage, reduces fan noise.
For achieving the above object, the technical solution adopted in the utility model is: a kind of ventilation silencer, comprise the housing that is provided with intake grill and exhaust outlet and be located at the interior many groups anechoic sheet of housing, housing integral body is surrounded by sound insulating material, the anechoic sheet height is less than the internal diameter of housing, anechoic sheet vertically spreads all over and is installed on enclosure interior, each organize between the anechoic sheet space and each other misclassification arrange.
More excellent is that the windward side that anechoic sheet is flat sheet or column and anechoic sheet is set to taper or circular arc type.
More excellent is, the anechoic sheet height irregular and by the sine and cosine waveform arranged distribution that can strengthen sound-absorbing effect in shell inner surface.
More excellent is, the anechoic sheet height irregular and by the circular arc camber shape arranged distribution that can strengthen sound-absorbing effect in shell inner surface.
The utility model adopts the bloop of many flat sheets of group or column, and bloop each interval misclassification permutation and combination becomes to have enhancing sound-absorbing damping effect waveform or curved surface, and such structure helps reducing windage, reduces fan noise simultaneously.The utility model is specially adapted in the knockdown audiometric room, because it is respond well to eliminate the noise, can improve the audiometric room soundproof effect.
Description of drawings
Fig. 1 is the utility model anechoic sheet schematic representation;
Fig. 2 is that the utility model anechoic sheet sine and cosine is arranged schematic representation;
Fig. 3 is that the utility model anechoic sheet circular arc camber is arranged schematic representation.
Among the figure:
1, intake grill 2, exhaust outlet 3, housing 4, anechoic sheet
Embodiment
The utility model is described in further detail in conjunction with the accompanying drawings.
As shown in Figure 1, 2, 3, a kind of ventilation silencer, comprise the housing 3 that is provided with intake grill 1 and exhaust outlet 2 and be located at the interior many groups anechoic sheet 4 of housing, housing integral body is surrounded by sound insulating material, anechoic sheet 4 height are less than the internal diameter of housing 3, anechoic sheet 4 vertically spreads all over and is installed on housing 3 inside, and each organizes between the anechoic sheet 4 space and misclassification each other.The windward side that anechoic sheet 4 is flat sheet or column and anechoic sheet is set to taper or circular arc type.Highly irregular different anechoic sheet is arranged in as shown in the drawing, and the shape of space, sine and cosine waveform or circular arc camber shape are distributed in shell inner surface, can strengthen sound-absorbing effect like this.The arrangement of anechoic sheet is not limited to above-mentioned three kinds of situations, can be according to the more excellent combination of test effect selection of eliminating the noise.
The utility model adopts the bloop of many flat sheets of group or column, and bloop each interval misclassification permutation and combination becomes to have enhancing sound-absorbing damping effect waveform or curved surface, and such structure helps reducing windage, reduces fan noise simultaneously.The utility model is specially adapted in the knockdown audiometric room, because it is respond well to eliminate the noise, can improve the audiometric room soundproof effect.
Above-described only is preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (4)
1. ventilation silencer, comprise the housing that is provided with intake grill and exhaust outlet and be located at the interior many groups anechoic sheet of housing, it is characterized in that, described housing integral body is surrounded by sound insulating material, described anechoic sheet height is less than the internal diameter of housing, anechoic sheet vertically spreads all over and is installed on enclosure interior, each organize between the anechoic sheet space and each other misclassification arrange.
2. ventilation silencer as claimed in claim 1 is characterized in that, the windward side that described anechoic sheet is flat sheet or column and anechoic sheet is set to taper or circular arc type.
3. ventilation silencer as claimed in claim 1 or 2 is characterized in that, described anechoic sheet height irregular and by the sine and cosine waveform arranged distribution that can strengthen sound-absorbing effect in shell inner surface.
4. ventilation silencer as claimed in claim 1 or 2 is characterized in that, described anechoic sheet height irregular and by the circular arc camber shape arranged distribution that can strengthen sound-absorbing effect in shell inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201403955U CN201292993Y (en) | 2008-11-18 | 2008-11-18 | Ventilation noise deadener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201403955U CN201292993Y (en) | 2008-11-18 | 2008-11-18 | Ventilation noise deadener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292993Y true CN201292993Y (en) | 2009-08-19 |
Family
ID=41006470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201403955U Expired - Lifetime CN201292993Y (en) | 2008-11-18 | 2008-11-18 | Ventilation noise deadener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292993Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846056A (en) * | 2010-04-26 | 2010-09-29 | 河南省高远公路养护设备有限公司 | Noise elimination device for blower of drainage asphalt pavement function recovery vehicle |
| CN102087853A (en) * | 2010-12-03 | 2011-06-08 | 中国航空规划建设发展有限公司 | Component integrated type ultralow-frequency sound eliminating device for aeroengine test bed |
| CN103471225A (en) * | 2013-09-10 | 2013-12-25 | 苏州岸肯电子科技有限公司 | Muffler |
| CN104421218A (en) * | 2013-08-28 | 2015-03-18 | 百事德机械（江苏）有限公司 | Novel square bending-flow type muffle |
| CN105317757A (en) * | 2015-10-12 | 2016-02-10 | 无锡市惠山合力传热设备厂 | Silencer in acoustic testing environment |
| CN108757581A (en) * | 2016-01-26 | 2018-11-06 | 王振环 | Fan and its impeller chimney for fan |
| CN110410366A (en) * | 2018-04-28 | 2019-11-05 | 青岛海尔智能技术研发有限公司 | Spiral case, blower and kitchen ventilator |
| CN110410365A (en) * | 2018-04-28 | 2019-11-05 | 青岛海尔智能技术研发有限公司 | Spiral case, blower and kitchen ventilator |
| CN110541842A (en) * | 2018-05-28 | 2019-12-06 | 青岛海尔智能技术研发有限公司 | Fan and ducted air conditioner |
| CN110541841A (en) * | 2018-05-28 | 2019-12-06 | 青岛海尔智能技术研发有限公司 | Fan and ducted air conditioner |
| CN110608471A (en) * | 2018-05-28 | 2019-12-24 | 青岛海尔智能技术研发有限公司 | Air duct machine |
| CN110608469A (en) * | 2018-05-28 | 2019-12-24 | 青岛海尔智能技术研发有限公司 | Air duct machine |
-
2008
- 2008-11-18 CN CNU2008201403955U patent/CN201292993Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846056A (en) * | 2010-04-26 | 2010-09-29 | 河南省高远公路养护设备有限公司 | Noise elimination device for blower of drainage asphalt pavement function recovery vehicle |
| CN102087853A (en) * | 2010-12-03 | 2011-06-08 | 中国航空规划建设发展有限公司 | Component integrated type ultralow-frequency sound eliminating device for aeroengine test bed |
| CN104421218A (en) * | 2013-08-28 | 2015-03-18 | 百事德机械（江苏）有限公司 | Novel square bending-flow type muffle |
| CN103471225A (en) * | 2013-09-10 | 2013-12-25 | 苏州岸肯电子科技有限公司 | Muffler |
| CN105317757A (en) * | 2015-10-12 | 2016-02-10 | 无锡市惠山合力传热设备厂 | Silencer in acoustic testing environment |
| CN108757581A (en) * | 2016-01-26 | 2018-11-06 | 王振环 | Fan and its impeller chimney for fan |
| CN110410366A (en) * | 2018-04-28 | 2019-11-05 | 青岛海尔智能技术研发有限公司 | Spiral case, blower and kitchen ventilator |
| CN110410365A (en) * | 2018-04-28 | 2019-11-05 | 青岛海尔智能技术研发有限公司 | Spiral case, blower and kitchen ventilator |
| CN110410366B (en) * | 2018-04-28 | 2021-11-02 | 青岛海尔智能技术研发有限公司 | Volute, fan and lampblack absorber |
| CN110541842A (en) * | 2018-05-28 | 2019-12-06 | 青岛海尔智能技术研发有限公司 | Fan and ducted air conditioner |
| CN110541841A (en) * | 2018-05-28 | 2019-12-06 | 青岛海尔智能技术研发有限公司 | Fan and ducted air conditioner |
| CN110608471A (en) * | 2018-05-28 | 2019-12-24 | 青岛海尔智能技术研发有限公司 | Air duct machine |
| CN110608469A (en) * | 2018-05-28 | 2019-12-24 | 青岛海尔智能技术研发有限公司 | Air duct machine |
| CN110541841B (en) * | 2018-05-28 | 2021-11-02 | 青岛海尔智能技术研发有限公司 | Fan and ducted air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171114 Address after: 201 room thirteen, block 17, 528000 Ying Yin Road, Chancheng District, Guangdong, Foshan Patentee after: Foshan Weier Hearing Technologies Co., Ltd. Address before: 528000 room two, No. 5, No. 604 East Sha Jie street, Chancheng District, Guangdong, Foshan Patentee before: Lan Jun |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090819 |