CN201292993Y - Ventilation noise deadener - Google Patents

Ventilation noise deadener Download PDF

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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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CN
China
Prior art keywords
anechoic sheet
housing
shell
utility
sheet
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.)
Expired - Lifetime
Application number
CNU2008201403955U
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Chinese (zh)
Inventor
蓝军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Weier Hearing Technologies Co Ltd
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CNU2008201403955U priority Critical patent/CN201292993Y/en
Application granted granted Critical
Publication of CN201292993Y publication Critical patent/CN201292993Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

A kind of ventilation silencer
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.
CNU2008201403955U 2008-11-18 2008-11-18 Ventilation noise deadener Expired - Lifetime CN201292993Y (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (14)

* Cited by examiner, † Cited by third party
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