CN208832564U - A kind of active noise reducing device applied to smoke machine - Google Patents
A kind of active noise reducing device applied to smoke machine Download PDFInfo
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- CN208832564U CN208832564U CN201821529182.1U CN201821529182U CN208832564U CN 208832564 U CN208832564 U CN 208832564U CN 201821529182 U CN201821529182 U CN 201821529182U CN 208832564 U CN208832564 U CN 208832564U
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- smoke machine
- box
- output device
- active noise
- noise reducing
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Abstract
The utility model relates to a kind of active noise reducing devices applied to smoke machine, comprising: Noise Acquisition device, for obtaining the noise of smoke machine generation；Output device, for emitting de-noising signal；Operatic tunes box is mounted on the rear portion of output device, and output device is contained in its cavity；Output device box is mounted on the bottom of smoke machine spiral case, and output device harmony cell is contained in its cavity；The angle of the output device box is set as arc line type chamfering or plane chamfering or right angle, for reducing its influence to smoke machine air-flow.The utility model carries out noise reduction to smoke machine by the way of active noise reduction, makes up the deficiency of passive noise reduction, promotes whole smoke machine sound quality.Operatic tunes box is used independently to be arranged with both output device box structures, external structure and internal acoustical cavity is separated individually designed, can ensure that resonant cavity volume is optimal, while ensureing exterior design realization optimum efficiency.
Description
Technical field
The utility model belongs to the technical field of noise control, fills in particular to the active noise reduction for being applied to smoke machine
It sets.
Background technique
Noise reduction effect bottleneck with passive noise reduction means in field of household appliances gradually shows, active noise reduction become one it is new
Technological trend is gradually applied in the performance boost of household electrical appliance, especially for air cleanings such as kitchen ventilator, air purifiers
The problem of household appliances of class, noise is with air quantity contradiction, is very prominent, and is product key problem.Active noise reduction can be good at
The deficiency for making up passive noise reduction means preferably promotes properties of product and quality on the basis of passive noise reduction.
Noise when applying active noise reduction that can mainly reduce smoke machine operating on kitchen ventilator.The master in smoke machine is applied at present
Dynamic noise reduction, is mainly built in smoke machine cavity for active noise reduction system, such as microphone, loudspeaker.Since smoke machine is in actual condition
Under, inside cavity bad environments are implemented to need to comprehensively consider various aspects problem when active noise reduction.
Utility model content
In view of the shortcomings of the prior art, the utility model provides one kind not to interfere while giving full play to loudspeaker effect
The active noise reducing device applied to smoke machine of smoke machine pressure at expulsion performance itself,
Concrete scheme is as follows, a kind of active noise reducing device applied to smoke machine, comprising:
Noise Acquisition device, for obtaining the noise of smoke machine generation；
Output device, for emitting de-noising signal；
Operatic tunes box is mounted on the rear portion of output device, and output device is contained in its cavity；
Output device box is mounted on the bottom of smoke machine spiral case, and output device harmony cell is contained in its cavity；
The angle of the output device box is set as arc line type chamfering or plane chamfering or right angle.
Further, the output device is mounted on the bottom of output device box, and the operatic tunes box is mounted on output device
The bottom of box, the operatic tunes box cover is on an output device.
Further, it is set as at the top of the output device box and the consistent curved surface of spiral case bottom shape, curved surface patch
It closes in spiral case bottom.
Further, the Noise Acquisition device is microphone.
Further, the output device is loudspeaker, and including at least two loudspeakers.
Further, an individual operatic tunes box is arranged in the rear portion of each loudspeaker.
Further, the operatic tunes box is configured according to loudspeaker Principles of Acoustics.
Further, the arc line type chamfering of the output device box meets fluid mechanics principle, for reducing angle to smoke machine
The influence of air-flow.
Further, the centre of the top curve surface of the output device box is provided with smoke machine oil guide groove, for condensation to be discharged
Greasy dirt afterwards.
Further, further include central control unit, be set in smoke machine master control panel, for Noise Acquisition device
Acquired noise signal carries out calculation processing.
The utility model has the advantages that
One, the utility model carries out noise reduction to smoke machine by the way of active noise reduction, makes up the deficiency of passive noise reduction, mentions
Rise whole smoke machine sound quality.
Two, operatic tunes box uses and is independently arranged with both output device box structures, by external structure and the internal operatic tunes
Structure is separately individually designed, can ensure that resonant cavity volume is optimal, while ensureing that exterior design realizes optimum efficiency.
Three, increase smoke machine static pressure, increase discharge pressure of the oil smoke to common flue, mitigation building bottom oil smoke, which is leapt up, asks
Topic.
Four, output device box external box of microvave is designed according to hydrodynamics, to reduce output device box to smoke machine
The influence of air-flow.
It five, is the curved surface that can be bonded with spiral case bottom at the top of output device box, which takes full advantage of spiral case bottom
The gap space between cabinet and spiral case is reduced in space, has prevented vortex from generating.
Six, two operatic tunes boxes are combined into one by output device box, simplify the complexity of smoke machine internal acoustic field, prevent
Uncertain abnormal sound generates.
Seven, smoke machine oil guide groove notch is provided among the cabinet of output device box top curve surface, the greasy dirt after condensation can be suitable
Oil guide groove is expelled directly out, which is advantageous in that, after preventing long-time use, greasy dirt carries out active noise reducing device inside dirty
Dye, and there are oil guide grooves inside general loudspeaker boxes, after long-time use, greasy dirt can still pollute internal denoising device.
Detailed description of the invention
The active noise reducing device installation applied to smoke machine and the schematic diagram in smoke machine that Fig. 1 is the utility model；
Fig. 2 is the installation diagram of the denoising device of the utility model；
In figure, 1 is output device box, and 2 be operatic tunes box, and 3 be bottom cover, and 4 be output device, and 5 be sponge, and 6 be protective cover, 7
It is spiral case for oil guide groove, 8.
Specific embodiment
To keep the purpose and technical solution of the utility model embodiment clearer, implement below in conjunction with the utility model
The attached drawing of example, is clearly and completely described the technical solution of the utility model embodiment.Obviously, described embodiment
It is a part of the embodiment of the utility model, instead of all the embodiments.Based on described the embodiments of the present invention,
Those of ordinary skill in the art's every other embodiment obtained under the premise of being not necessarily to creative work belongs to practical
Novel protected range.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in the utility model fields.Also
It should be understood that those terms such as defined in the general dictionary should be understood that have in the context of the prior art
The consistent meaning of meaning will not be explained in an idealized or overly formal meaning and unless defined as here.
The meaning of " inside and outside " described in the utility model is referred to relative to equipment itself, inside sensing equipment
Direction be it is interior, otherwise is outer；Rather than the specific restriction to the equipment mechanism of the utility model.
The meaning of " connection " described in the utility model can be to be directly connected to be also possible between component between component
Pass through being indirectly connected with for other components.
As illustrated in fig. 1 and 2, a kind of active noise reducing device applied to smoke machine of the utility model, comprising:
Noise Acquisition device, for obtaining the noise of smoke machine generation；
Output device 4, for emitting de-noising signal；
Operatic tunes box 2 is mounted on the rear portion of output device 4, and output device 4 is contained in its cavity；
Output device box 1 is mounted on the bottom of smoke machine spiral case 8, and 4 harmony cell 2 of output device is contained in its chamber
In vivo；
The structure of 1 lower part of output device box is cuboid-type, and bottom surface is horizontally disposed, the substructure of output device box 1
Angle be set as arc line type chamfering or plane chamfering or right angle.Arc line shaped chamfering be in order to will the angle of output device box 1 it is outer
Portion's structure setting especially meets fluid mechanical design at the chamfering of arc shape, can largely reduce to gas in smoke machine
Flow the shape influenced.It is larger that above-mentioned arc line shaped chamfering is compared in influence of the plane chamfering to smoke machine interior air-flow, but also in certain journey
The adverse effect reduced to smoke machine interior air-flow can be played on degree, plane chamfering is usually by the outer of the angle of output device box 1
Portion's structure cuts off the end at angle along certain angle, forms a plane chamfering.
As a preferred embodiment, the plane of the side of output device box 1 and the intersection of bottom surface carry out camber line
The setting of shape chamfering especially meets hydrodynamics and is related to, and can reduce its influence to smoke machine interior air-flow.
Output device 4 is mounted on the bottom of output device box 1, and operatic tunes box 2 is mounted on the bottom of output device box 1, the operatic tunes
Box 2 covers on output device 4.
The top of output device box 1 be set as with the consistent curved surface of 8 bottom shape of spiral case, the application of a surface is at 8 bottom of spiral case
Portion.
Noise Acquisition device is microphone.
Output device 4 is loudspeaker, and including at least two loudspeakers.
An individual operatic tunes box 2 is arranged in the rear portion of each loudspeaker.
Operatic tunes box 2 is configured according to loudspeaker Principles of Acoustics.
The streamlined of the outside of output device box 1 meets fluid mechanics principle.
The centre of the top curve surface of output device box 1 is provided with smoke machine oil guide groove 7, for the greasy dirt after condensing to be discharged.
Further include central control unit, be set in smoke machine master control panel, for acquired in Noise Acquisition device
Noise signal carries out calculation processing.
Output device box further includes bottom cover 3, is mounted on the bottom of output device box, and output device is mounted on bottom cover 3.It is defeated
The front end of emission of device is additionally provided with sponge 5 and protective cover 6 out.
The utility model carries out noise reduction to smoke machine by the way of active noise reduction, makes up the deficiency of passive noise reduction, is promoted
Whole smoke machine sound quality.Operatic tunes box is used independently to be arranged with both output device box structures, by external structure and inside
Acoustical cavity is separately individually designed, can ensure that resonant cavity volume is optimal, while ensureing that exterior design realizes optimum efficiency.Increase cigarette
Machine static pressure increases discharge pressure of the oil smoke to common flue, mitigates building bottom oil smoke and leaps up problem.Outside output device box
Cabinet is designed according to hydrodynamics, to reduce influence of the output device box to smoke machine air-flow.At the top of output device box
For the curved surface that can be bonded with spiral case bottom, which takes full advantage of the space of spiral case bottom, reduces between cabinet and spiral case
Gap space has prevented vortex from generating.Two operatic tunes boxes are combined into one by output device box, simplify smoke machine internal acoustic field
Complexity prevents uncertain abnormal sound from generating.Smoke machine oil guide groove is provided among the cabinet of output device box top curve surface
Notch, the greasy dirt after condensation can be expelled directly out along oil guide groove, which is advantageous in that, after preventing long-time use, greasy dirt pair
Polluted inside active noise reducing device, and there are oil guide grooves inside general loudspeaker boxes, after long-time use, greasy dirt according to
Internal denoising device can so be polluted.
The utility model listens to noise sound wave using microphone, calculates that wavelength, amplitude be identical, phase by central processing unit
Position is in 180 ° of opposite sound waves, and plays reversed noise reduction sound wave by power amplifier speaker unit, realizes noise reduction.
The above is only the embodiments of the present invention, and the description thereof is more specific and detailed, but can not therefore understand
For a limitation on the scope of the patent of the present invention.It should be pointed out that for those of ordinary skill in the art, not taking off
Under the premise of from the utility model design, various modifications and improvements can be made, these belong to the protection of the utility model
Range.
Claims (10)
1. a kind of active noise reducing device applied to smoke machine characterized by comprising
Noise Acquisition device, for obtaining the noise of smoke machine generation；
Output device, for emitting de-noising signal；
Operatic tunes box is mounted on the rear portion of output device, and output device is contained in its cavity；
Output device box is mounted on the bottom of smoke machine spiral case, and output device harmony cell is contained in its cavity；
The angle of the output device box is set as arc line type chamfering or plane chamfering or right angle.
2. a kind of active noise reducing device applied to smoke machine according to claim 1, which is characterized in that the output dress
The bottom for being mounted on output device box is set, the operatic tunes box is mounted on the bottom of output device box, and the operatic tunes box cover is exporting
On device.
3. a kind of active noise reducing device applied to smoke machine according to claim 1, which is characterized in that the output dress
Set be set as at the top of box with the consistent curved surface of spiral case bottom shape, the application of a surface is in spiral case bottom.
4. a kind of active noise reducing device applied to smoke machine according to claim 1, which is characterized in that the noise is adopted
Packaging is set to microphone.
5. a kind of active noise reducing device applied to smoke machine according to claim 1, which is characterized in that the output dress
It is set to loudspeaker, and including at least two loudspeakers.
6. a kind of active noise reducing device applied to smoke machine according to claim 5, which is characterized in that raised described in each
An individual operatic tunes box is arranged in the rear portion of sound device.
7. a kind of active noise reducing device applied to smoke machine according to claim 1, which is characterized in that the operatic tunes box
It is configured according to loudspeaker Principles of Acoustics.
8. a kind of active noise reducing device applied to smoke machine according to claim 1, which is characterized in that the output dress
The arc line type chamfering for setting box meets fluid mechanics principle, the influence for reducing angle to smoke machine air-flow.
9. a kind of active noise reducing device applied to smoke machine according to claim 3, which is characterized in that the output dress
The centre for setting the top curve surface of box is provided with smoke machine oil guide groove, for the greasy dirt after condensing to be discharged.
10. a kind of active noise reducing device applied to smoke machine according to claim 1, which is characterized in that in further including
Control unit is entreated, is set in smoke machine master control panel, for calculating noise signal acquired in Noise Acquisition device
Processing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018211175681 | 2018-07-16 | ||
| CN201821117568 | 2018-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208832564U true CN208832564U (en) | 2019-05-07 |
Family
ID=66313839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821529182.1U Active CN208832564U (en) | 2018-07-16 | 2018-09-19 | A kind of active noise reducing device applied to smoke machine |
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|---|---|
| CN (1) | CN208832564U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964120A (en) * | 2020-09-08 | 2020-11-20 | 珠海格力电器股份有限公司 | Smoke exhaust ventilator |
| CN114576661A (en) * | 2020-11-30 | 2022-06-03 | 广东美的白色家电技术创新中心有限公司 | Smoke machine |
-
2018
- 2018-09-19 CN CN201821529182.1U patent/CN208832564U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964120A (en) * | 2020-09-08 | 2020-11-20 | 珠海格力电器股份有限公司 | Smoke exhaust ventilator |
| CN114576661A (en) * | 2020-11-30 | 2022-06-03 | 广东美的白色家电技术创新中心有限公司 | Smoke machine |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201130 Address after: Room 109, 1 / F, building 5, No. 725, Jinsong District, Panjiayuan, Chaoyang District, Beijing 100021 Patentee after: BEIJING ANSHENG HAOLANG TECHNOLOGY Co.,Ltd. Address before: 501 (F-051) on the fifth floor of No. 14 Building, No. 7 Courtyard, Dijin Road, Haidian District, Beijing 100000 Patentee before: BEIJING ANSHENG ZHIYUAN TECHNOLOGY PARTNERSHIP (L.P.) |