CN203134364U - Door and window active noise reduction device - Google Patents
Door and window active noise reduction device Download PDFInfo
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- CN203134364U CN203134364U CN 201220561559 CN201220561559U CN203134364U CN 203134364 U CN203134364 U CN 203134364U CN 201220561559 CN201220561559 CN 201220561559 CN 201220561559 U CN201220561559 U CN 201220561559U CN 203134364 U CN203134364 U CN 203134364U
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Abstract
The utility model relates to a door and window active noise reduction device, which is designed based on the principle of active noise reduction control. A cross section of a door or a window is provided with a single or a plurality of active noise reduction unit 1, wherein each active noise reduction unit 1 comprises a pickup 101 and a loudspeaker 103; the pickups 101 are used for picking up external noise, converting the noise into electrical signals, and transmitting the electrical signals to an audio signal processor 105; the audio signal processor 105 amplifies the electrical signals and reverses the phases of the electrical signals; and the loudspeakers 103 are driven by signals output by the audio signal processor 105 to generate a sound whose frequency is the same as that of the noise to be suppressed and the phase is opposite to that of the noise to be suppressed, thereby inhibiting the noise transmitted from the outdoor to the indoor. The door and window active noise reduction device can implement the noise control without affecting the ventilation of doors and windows and without changing the original structures of doors and windows.
Description
[technical field]
The utility model relates to active active noise reduction technical field.
[background technology]
Along with city's constant development, various noises have more and more influenced people's life, and various sound-deadening and noise-reducing door and windows arise at the historic moment.But present sound-deadening and noise-reducing door and window is mostly based on passive sound insulation and noise reduction, usually utilize double glazing or noise absorbing material to carry out noise shielding, but this kind method also can cause the window structure complexity usually, and is sluggish in air circulation, and anti-acoustic capability is also not ideal.
[summary of the invention]
The purpose of this utility model is the active active noise reduction device that proposes a kind of door and window, is based on the design of active noise reduction control principle.The basic concept of active active noise controlling method is approximately just well-known from 1936, and it is to produce a kind of wavelength (frequency) and to wait to suppress noise identical when noise takes place, the amplitude equal and opposite in direction, and the sound that phase place is opposite suppresses noise.This control method has obtained application in the noise control of air conditioner.
The technical solution of the utility model is:
Based on active noise reduction control principle design, arranging with the array form in 1 or a plurality of active noise reductions unit, is arranged on the xsect of door or window, comprise acoustic pickup, loudspeaker and audio signal processor in the active noise reduction unit.
The microphone pickup noise signal, noise signal is changed into electric signal, electrical signal transfer is given audio signal processor, amplify by audio signal processor, the go forward side by side anti-phase processing of line phase, pass to loudspeaker again, one of loudspeaker generation is identical with frequency noise to be controlled, but the opposite sound of phase place.
Acoustic pickup is towards the noise source direction, and loudspeaker is back to the noise source direction.
Between acoustic pickup and the loudspeaker sound panel is arranged.
The invention has the beneficial effects as follows:
1. the utility model can be implemented the control of noise under the situation that does not influence the door and window ventilation.
2. installation of the present utility model and use do not influence the door and window original structure, can be directly installed on the outside of door and window.
[description of drawings]
Fig. 1 the utility model active noise reduction cell schematics
The scheme of installation of Fig. 2 the utility model on door and window
Above accompanying drawing has shown each feature of the utility model ultimate principle only to the technical description of the utility model principle in the accompanying drawing, each structural member of accompanying drawing is not to draw fully in proportion.
[embodiment]
Further specify below in conjunction with accompanying drawing.
Shown in Fig. 1 is the utility model active noise reduction cell schematics.Comprise acoustic pickup 101, sound panel 102, loudspeaker 103, microphone signal line 104, audio signal processor 105 and loudspeaker signal line 106.Acoustic pickup 101 picks up noise signal towards the noise source direction, and noise signal is changed into electric signal, and electric signal passes to audio signal processor 105 by microphone signal line 104.The function of audio signal processor 105 is to carry out the amplification of sound signal, signal inversion processing and volume to regulate.The signal that audio signal processor 105 was handled passes to loudspeaker 103 by loudspeaker signal line 106, and loudspeaker 103 one of generation are identical with frequency noise, but the opposite sound of phase place.Audio signal processor 105 can be regulated and control the volume of loudspeaker 103, and the sound intensity that loudspeaker 103 is produced can suppress the intensity of noise just.
Acoustic pickup 101 and loudspeaker 103 back-to-back placements, purpose are to make the direction of sound propagation of loudspeaker 103 to deviate from acoustic pickup 101, reduce the intensity of sound that acoustic pickup 101 is given in loudspeaker 103 passbacks.Between acoustic pickup 101 and loudspeaker 103 sound panel 102 is set, sound panel 102 can be dull and stereotyped, also can be the structure of other shape, and the effect of sound panel 102 is that the sound that stops loudspeaker 103 to produce returns to acoustic pickup 101.
Shown in Fig. 2 is the scheme of installation of the utility model on forms.Comprising active noise reduction unit 1, windowpane 2 and body of wall 3.Active noise reduction unit 1 is arranged in the outside of the original windowpane of forms, and the number of active noise reduction unit 1 can be 1, also can be a plurality of.When the number of active noise reduction unit 1 when being a plurality of, will be arranged in array at window.Adopt the active noise reduction unit 1 of more number that more uniform noise reduction can be provided, but cost is increased.Therefore in actual use should be according to the size of window, the design parameter of active noise reduction unit 1 and the number that estimated cost is determined active noise reduction unit 1.
The utility model is when work, need regulate by the sound intensity that 105 pairs of loudspeakers of audio signal processor 103 produce, total sound intensity that active noise reduction unit whole in the active noise reducing device 1 is produced can suppress the outdoor indoor noise that is delivered to just, reaches the minimum purpose of room noise level.The sound intensity of loudspeaker 103 can artificially be regulated according to the auditory perception of self by being in indoor people, reaches the purpose of sense of hearing sense organ noise minimum.Also can indoor an independently acoustic pickup be set what needs were controlled noise, pick up the room noise signal, acoustic pickup connects an analysis circuit, analysis circuit connects a controller, analysis circuit is analyzed the room noise signal, controller makes the room noise level reach minimum according to the sound intensity of analysis result adjusting loudspeaker 103.
When active noise reducing device uses, can play the effect that reduces room noise, even also can be indoor noise control in lower level when the user windows ventilation.When the user closed windowpane, active noise reducing device was arranged in the outside of windowpane and the soundproof effect of windowpane plays the effect that supplements and complements each other.Glass has good obstruct and reflex for the sound of upper frequency, but sound obstruct and reflecting effect for lower frequency are relatively poor, and active noise reducing device is better to the sound shield effectiveness of lower frequency, the two acting in conjunction, can reach desirable noise reduction, quiet environment in the holding chamber.
Also have a kind of applicable cases be when indoor noise very big, as singing-hall, KTV or workshop etc., for preventing that indoor noise transmission is to outdoor, a series of problems such as cause that noise disturbs residents, also can use this active noise reducing device, opposite described in the installation direction of active noise reducing device and Fig. 2 just, acoustic pickup 101 is towards indoor direction, and loudspeaker 103 is towards outdoor direction.
Claims (4)
1. active active noise reduction device of door and window, design based on the active noise reduction control principle, it is characterized in that: arranged with the array form by 1 or a plurality of active noise reductions unit (1) and form, be arranged on the xsect of door or window, comprise acoustic pickup (101), loudspeaker (103) and audio signal processor (105) in active noise reduction unit (1).
2. the active active noise reduction device of door and window as claimed in claim 1, it is characterized in that: acoustic pickup (101) picks up noise signal, noise signal is changed into electric signal, electrical signal transfer is given audio signal processor (105), amplify by audio signal processor (105), the anti-phase processing of the line phase of going forward side by side passes to loudspeaker (103) again, one of loudspeaker (103) generation is identical with frequency noise to be controlled, but the opposite sound of phase place.
3. the active active noise reduction device of door and window as claimed in claim 1, it is characterized in that: acoustic pickup (101) is towards the noise source direction, and loudspeaker (103) is back to the noise source direction.
4. the active active noise reduction device of door and window as claimed in claim 1 is characterized in that: between acoustic pickup (101) and the loudspeaker (103) sound panel (102) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561559 CN203134364U (en) | 2012-10-29 | 2012-10-29 | Door and window active noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561559 CN203134364U (en) | 2012-10-29 | 2012-10-29 | Door and window active noise reduction device |
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| CN 201220561559 Expired - Fee Related CN203134364U (en) | 2012-10-29 | 2012-10-29 | Door and window active noise reduction device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606372A (en) * | 2013-11-08 | 2014-02-26 | 四川长虹电器股份有限公司 | Noise eliminating method based on intelligent home furnishing and system thereof |
| CN104053093A (en) * | 2014-06-25 | 2014-09-17 | 南京信息工程大学 | Portable indoor noise reduction device |
| CN104064176A (en) * | 2014-07-14 | 2014-09-24 | 曾斌 | Indoor noise elimination device |
| CN105183946A (en) * | 2015-08-11 | 2015-12-23 | 珠海格力电器股份有限公司 | Noise reduction method and system based on air conditioner |
| CN106057189A (en) * | 2016-06-29 | 2016-10-26 | 广州恒成智道信息科技有限公司 | Indoor active noise reduction apparatus |
| CN106211008A (en) * | 2016-08-28 | 2016-12-07 | 吴浩 | A kind of multi-functional deafener that amplifies |
| WO2017000776A1 (en) * | 2015-06-30 | 2017-01-05 | 芋头科技（杭州）有限公司 | Robot indoor noise control system |
| CN106639013A (en) * | 2016-11-28 | 2017-05-10 | 南京大学 | Mixed soundproof wall |
| CN106782489A (en) * | 2017-01-18 | 2017-05-31 | 李伟佳 | A kind of portable multi-function Intelligent noise reduction device |
| CN106847254A (en) * | 2017-03-17 | 2017-06-13 | 浙江大学 | A kind of locality active noise reduction system |
| CN107993645A (en) * | 2017-12-04 | 2018-05-04 | 成都星达微科技有限公司 | A kind of campus dormitory active noise reduction system based on Noise Acquisition |
| CN109074797A (en) * | 2016-03-01 | 2018-12-21 | 佳殿玻璃有限公司 | Sound equipment wall part and/or its manufacturing method with double-wall construction and active noise destructive characteristics and/or utilize method |
| CN109448691A (en) * | 2018-11-22 | 2019-03-08 | 南京大学 | A method of active acoustic radiation control system noise reduction is improved using partition wall |
| CN109461432A (en) * | 2018-10-18 | 2019-03-12 | 陕西中骕实业有限公司 | It is a kind of to have directive active noise reducing device and method |
| CN117308272A (en) * | 2023-11-28 | 2023-12-29 | 珠海格力电器股份有限公司 | Noise reduction method and device based on air conditioner, air conditioner and computer readable storage medium |
-
2012
- 2012-10-29 CN CN 201220561559 patent/CN203134364U/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606372A (en) * | 2013-11-08 | 2014-02-26 | 四川长虹电器股份有限公司 | Noise eliminating method based on intelligent home furnishing and system thereof |
| CN104053093A (en) * | 2014-06-25 | 2014-09-17 | 南京信息工程大学 | Portable indoor noise reduction device |
| CN104053093B (en) * | 2014-06-25 | 2017-11-07 | 南京信息工程大学 | A kind of Portable type room denoiser |
| CN104064176A (en) * | 2014-07-14 | 2014-09-24 | 曾斌 | Indoor noise elimination device |
| CN106328116A (en) * | 2015-06-30 | 2017-01-11 | 芋头科技（杭州）有限公司 | Robot indoor noise control system |
| CN106328116B (en) * | 2015-06-30 | 2020-04-17 | 芋头科技（杭州）有限公司 | Indoor noise control system of robot |
| WO2017000776A1 (en) * | 2015-06-30 | 2017-01-05 | 芋头科技（杭州）有限公司 | Robot indoor noise control system |
| CN105183946A (en) * | 2015-08-11 | 2015-12-23 | 珠海格力电器股份有限公司 | Noise reduction method and system based on air conditioner |
| CN109074797A (en) * | 2016-03-01 | 2018-12-21 | 佳殿玻璃有限公司 | Sound equipment wall part and/or its manufacturing method with double-wall construction and active noise destructive characteristics and/or utilize method |
| CN106057189A (en) * | 2016-06-29 | 2016-10-26 | 广州恒成智道信息科技有限公司 | Indoor active noise reduction apparatus |
| CN106211008A (en) * | 2016-08-28 | 2016-12-07 | 吴浩 | A kind of multi-functional deafener that amplifies |
| CN106639013A (en) * | 2016-11-28 | 2017-05-10 | 南京大学 | Mixed soundproof wall |
| CN106639013B (en) * | 2016-11-28 | 2019-09-27 | 南京大学 | Hybrid Sound Wall |
| CN106782489A (en) * | 2017-01-18 | 2017-05-31 | 李伟佳 | A kind of portable multi-function Intelligent noise reduction device |
| CN106847254A (en) * | 2017-03-17 | 2017-06-13 | 浙江大学 | A kind of locality active noise reduction system |
| CN107993645A (en) * | 2017-12-04 | 2018-05-04 | 成都星达微科技有限公司 | A kind of campus dormitory active noise reduction system based on Noise Acquisition |
| CN109461432A (en) * | 2018-10-18 | 2019-03-12 | 陕西中骕实业有限公司 | It is a kind of to have directive active noise reducing device and method |
| CN109461432B (en) * | 2018-10-18 | 2023-03-14 | 陕西中骕实业有限公司 | Active noise reduction device and method with directivity |
| CN109448691A (en) * | 2018-11-22 | 2019-03-08 | 南京大学 | A method of active acoustic radiation control system noise reduction is improved using partition wall |
| CN117308272A (en) * | 2023-11-28 | 2023-12-29 | 珠海格力电器股份有限公司 | Noise reduction method and device based on air conditioner, air conditioner and computer readable storage medium |
| CN117308272B (en) * | 2023-11-28 | 2024-04-09 | 珠海格力电器股份有限公司 | Noise reduction method and device based on air conditioner, air conditioner and computer readable storage medium |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20161029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |