CN106710583A - Active-vibration control method for controlling noise of range hood - Google Patents
Active-vibration control method for controlling noise of range hood Download PDFInfo
- Publication number
- CN106710583A CN106710583A CN201611224391.0A CN201611224391A CN106710583A CN 106710583 A CN106710583 A CN 106710583A CN 201611224391 A CN201611224391 A CN 201611224391A CN 106710583 A CN106710583 A CN 106710583A
- Authority
- CN
- China
- Prior art keywords
- vibration
- signal
- noise
- range hood
- processing module
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005284 excitation Effects 0.000 claims abstract description 6
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 238000005086 pumping Methods 0.000 claims description 12
- 239000006096 absorbing agent Substances 0.000 claims description 11
- 239000006233 lamp black Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004422 calculation algorithm Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000004364 calculation method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention relates to an active-vibration control method for controlling the noise of a range hood. The active-vibration control method mainly comprises a piezoelectric sensor, a vibratory piezoelectric device and a signal processing module, wherein the piezoelectric sensor and the vibratory piezoelectric device are arranged on a range hood shell; the piezoelectric sensor, the vibratory piezoelectric device and the signal processing module are communicated for transmitting signals; by carrying out modal analysis on the range hood shell, the piezoelectric sensor is arranged in the main vibration direction and is used for acquiring vibration signals of the shell, transmitting the acquired vibration signals into the signal processing module for signal processing in a signal manner, and then transmitting an excitation signal to the vibratory piezoelectric device by signal calculation. According to the active-vibration control method, the low frequency of vibration of the range hood shell can be effectively controlled, the low-frequency sound in radiation noise of the range hood shell can be effectively controlled, and the radiation of low noise can be prevented.
Description
Technical field
The present invention relates to the control method of noise of range hood, especially a kind of active vibration for noise of range hood control
Control method.
Background technology
The propagation path of noise of range hood mainly has fume exhauster air inlet, lampblack absorber air outlet, a lampblack absorber housing, and noise
The spectrum distribution in source is in, low, high-frequency is occurred, and is found by studying, and the noise at housing occupies noise of range hood spoke
Hit that to occupy proportion also very big.In Noise measarement, medium, high frequency noise can be controlled by way of passive control,
In low-frequency noise, the current research for having by active active noise reduction technology to be controlled of noise of air inlet, and for
The low-frequency noise control of housing radiated noise, and find no correlative study report.Low-frequency noise also causes industry recent years
Interior attention, and influence the low frequency clunk of noise qualities to bring greatly not positive sensations to user.
The content of the invention
The invention solves the problems that the shortcoming of above-mentioned prior art, there is provided a kind of excellent noise reduction effect, effectively improve lampblack absorber and use
The Vibration Active Control method for noise of range hood control of comfort.
The present invention solves the technical scheme that its technical problem is used：This active vibration control for noise of range hood control
Method processed, the piezoelectric transducer for mainly including, vibration piezoelectricity device and signal processing module, piezoelectric transducer and vibration piezoelectricity device peace
Loaded on the transmission signal that on hydraulic press housing, is connected between piezoelectric transducer, vibration piezoelectricity device and signal processing module, by right
Lampblack absorber housing carries out model analysis, and piezoelectric transducer is disposed in principal vibration direction, and the vibration signal for gathering housing will
The vibration signal for collecting enters signal processing module by signal transmission carries out signal transacting, by signal of change, then will swash
Encourage signal transmission and give vibration piezoelectricity device, row energization is entered to lampblack absorber housing by vibrating piezoelectricity device, the excitation is initial with housing
Direction of vibration is conversely, vibration so as to suppress housing, reaches the effect of noise reduction.
The piezoelectric transducer is mainly the vibration signal of collection housing, and the primary vibration that hull vibration is produced is by the pressure
Electric module, carries out vibration acquisition, by being used after amplification, is converted to electric signal, is then input in signal processing module.
The signal processing module is analyzed by the vibration signal for collecting, and then produces an amplitude identical,
, then be input to secondary pumping signal in vibration piezoelectricity device by the secondary pumping signal of opposite in phase.
The vibration piezoelectricity device is active control module, after the pumping signal for receiving signal processing module, vibration
The signal that piezoelectricity device will be collected is converted to that amplitude is identical, the secondary excited vibration opposite with primary vibration phase.
The invention has the advantages that：The present invention can control effectively to the low frequency of lampblack absorber hull vibration, can have
Low-frequency sound in effect control lampblack absorber housing radiated noise, prevents the radiation of low-frequency noise.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is principle schematic of the invention.
Description of reference numerals：Piezoelectric transducer 1, vibration piezoelectricity device 2, signal processing module 3.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As illustrated, this Vibration Active Control method for noise of range hood control, the piezoelectric sensing for mainly including
Device 1, vibration piezoelectricity device 2 and signal processing module 3, piezoelectric transducer 1 and vibration piezoelectricity device 2 are installed on hydraulic press housing, are pressed
Be connected transmission signal between electric transducer 1, vibration piezoelectricity device 2 and signal processing module 3, and mould is carried out by lampblack absorber housing
State is analyzed, and piezoelectric transducer 1, the vibration signal for gathering housing, the vibration letter that will be collected are disposed in principal vibration direction
Number entering signal processing module 3 by signal transmission carries out signal transacting, by signal of change, is then transferred to pumping signal and shakes
Dynamic pressure electrical equipment 2, row energization is entered by vibrating piezoelectricity device 2 to lampblack absorber housing, and the excitation is in opposite direction with the initial vibration of housing,
So as to suppress the vibration of housing, the effect of noise reduction is reached.
Piezoelectric transducer 1 is mainly the vibration signal for gathering housing, and the primary vibration that hull vibration is produced passes through the piezoelectricity
Module, carries out vibration acquisition, by being used after amplification, is converted to electric signal, is then input in signal processing module 3.
Signal processing module 3 is analyzed by the vibration signal for collecting, and then produces an amplitude identical, phase
, then be input to secondary pumping signal in vibration piezoelectricity device 2 by opposite secondary pumping signal.Signal processing module 3 is used
The processors such as ARM, DSP, but do not limit, and calculator is not limited to this using computational algorithms such as PID, LMS, FX-LMS
Algorithm, it would however also be possible to employ all other calculation of the pumping signal of excitation as long as neutral net etc. can be realized having an idea in real time
Method..
Vibration piezoelectricity device 2 is active control module, after the pumping signal for receiving signal processing module 2, vibration pressure
The signal that electrical equipment 2 will be collected is converted to that amplitude is identical, the secondary excited vibration opposite with primary vibration phase, so as to suppress oil
Cigarette machine hull vibration, eliminates noise.
Control method of the invention is calculated using feedforward control, and vibrational feedback original paper is not needed in control process, but logical
Cross after debugging, by the treatment of vibrational feedback error write signal, then in real time passed vibration information according to piezoelectric transducer
Calculated to judge vibration and feedback vibration error to signal processing system, obtained a good error signal of convergence
Afterwards, then judged by the error and control the excitation and implementation of lampblack absorber hull vibration.
Major control frequency of the present invention is concentrated on below 1000hz or so, but does not limit to below 1000hz, according to different shells
The result of body model analysis is controlled the selection of frequency.
In addition to the implementation, the present invention can also have other embodiment.All use equivalents or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (5)
1. it is a kind of for noise of range hood control Vibration Active Control method, the piezoelectric transducer for mainly including (1), vibration pressure
Electrical equipment (2) and signal processing module (3), it is characterized in that：Piezoelectric transducer (1) and vibration piezoelectricity device (2) are installed on oil pressure casing
On body, be connected transmission signal between piezoelectric transducer (1), vibration piezoelectricity device (2) and signal processing module (3), by oil
Cigarette casing body carries out model analysis, principal vibration direction dispose piezoelectric transducer (1), the vibration signal for gathering housing,
The vibration signal that will be collected enters signal processing module (3) by signal transmission carries out signal transacting, by signal of change, then
By pumping signal be transferred to vibration piezoelectricity device (2), row energization is entered to lampblack absorber housing by vibrating piezoelectricity device (2), the excitation with
The initial vibration of housing is in opposite direction, so as to suppress the vibration of housing, reaches the effect of noise reduction.
2. it is according to claim 1 for noise of range hood control Vibration Active Control method, it is characterized in that：The pressure
Electric transducer (1) is mainly the vibration signal of collection housing, and the primary vibration that hull vibration is produced is carried out by the piezo electric module
Vibration acquisition, by being used after amplification, is converted to electric signal, is then input in signal processing module (3).
3. it is according to claim 1 for noise of range hood control Vibration Active Control method, it is characterized in that：The letter
Number processing module (3) is analyzed by the vibration signal for collecting, and then produces an amplitude identical, opposite in phase time
, then be input to secondary pumping signal in vibration piezoelectricity device (2) by level pumping signal.
4. it is according to claim 3 for noise of range hood control Vibration Active Control method, it is characterized in that：The letter
, using processors such as ARM, DSP, calculator is using computational algorithms such as PID, LMS, FX-LMS for number processing module (3).
5. it is according to claim 1 for noise of range hood control Vibration Active Control method, it is characterized in that：It is described to shake
Dynamic pressure electrical equipment (2) is active control module, after the pumping signal for receiving signal processing module (2), vibrates piezoelectricity device (2)
The signal that will be collected is converted to that amplitude is identical, the secondary excited vibration opposite with primary vibration phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611224391.0A CN106710583A (en) | 2016-12-27 | 2016-12-27 | Active-vibration control method for controlling noise of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611224391.0A CN106710583A (en) | 2016-12-27 | 2016-12-27 | Active-vibration control method for controlling noise of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106710583A true CN106710583A (en) | 2017-05-24 |
Family
ID=58902746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611224391.0A Pending CN106710583A (en) | 2016-12-27 | 2016-12-27 | Active-vibration control method for controlling noise of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106710583A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559731A (en) * | 2017-09-25 | 2019-04-02 | 佛山市顺德区美的电热电器制造有限公司 | Magnetostriction noise reduction components |
| CN109559729A (en) * | 2017-09-25 | 2019-04-02 | 佛山市顺德区美的电热电器制造有限公司 | Housed device |
| CN110425611A (en) * | 2019-07-04 | 2019-11-08 | 浙江工业大学 | A kind of active vibration damping silencing means used for range hood |
| CN111140892A (en) * | 2020-01-02 | 2020-05-12 | 杭州老板电器股份有限公司 | Noise reduction device, air duct system and smoke exhaust system |
| CN111583897A (en) * | 2020-05-21 | 2020-08-25 | 清华大学苏州汽车研究院（相城） | Active noise reduction system for kitchen appliance and control method thereof |
| CN114322036A (en) * | 2022-01-28 | 2022-04-12 | 杭州老板电器股份有限公司 | Noise reduction method, noise reduction device and range hood thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202093815U (en) * | 2011-06-07 | 2011-12-28 | 广西工学院 | Integrated self-adaptive control system for controlling noise characteristic of elastic cavity covered with active constrained layer |
| WO2015029403A1 (en) * | 2013-09-02 | 2015-03-05 | パナソニックＩｐマネジメント株式会社 | Range hood |
| CN105261354A (en) * | 2015-09-09 | 2016-01-20 | 东南大学 | Adaptive active noise control system for active noise reduction and controlling method thereof |
| CN205299691U (en) * | 2016-01-26 | 2016-06-08 | 苏州清听声学科技有限公司 | A silencing device for smoke ventilator |
| US20160372106A1 (en) * | 2014-03-07 | 2016-12-22 | Panasonic Intellectual Property Management Co., Ltd. | Signal processing device, program, and range hood system |
-
2016
- 2016-12-27 CN CN201611224391.0A patent/CN106710583A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202093815U (en) * | 2011-06-07 | 2011-12-28 | 广西工学院 | Integrated self-adaptive control system for controlling noise characteristic of elastic cavity covered with active constrained layer |
| WO2015029403A1 (en) * | 2013-09-02 | 2015-03-05 | パナソニックＩｐマネジメント株式会社 | Range hood |
| US20160372106A1 (en) * | 2014-03-07 | 2016-12-22 | Panasonic Intellectual Property Management Co., Ltd. | Signal processing device, program, and range hood system |
| CN105261354A (en) * | 2015-09-09 | 2016-01-20 | 东南大学 | Adaptive active noise control system for active noise reduction and controlling method thereof |
| CN205299691U (en) * | 2016-01-26 | 2016-06-08 | 苏州清听声学科技有限公司 | A silencing device for smoke ventilator |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559731A (en) * | 2017-09-25 | 2019-04-02 | 佛山市顺德区美的电热电器制造有限公司 | Magnetostriction noise reduction components |
| CN109559729A (en) * | 2017-09-25 | 2019-04-02 | 佛山市顺德区美的电热电器制造有限公司 | Housed device |
| CN109559731B (en) * | 2017-09-25 | 2023-11-24 | 佛山市顺德区美的电热电器制造有限公司 | Magnetostriction noise reduction assembly |
| CN110425611A (en) * | 2019-07-04 | 2019-11-08 | 浙江工业大学 | A kind of active vibration damping silencing means used for range hood |
| CN110425611B (en) * | 2019-07-04 | 2024-06-21 | 浙江工业大学 | Active vibration reduction and silencing device for range hood |
| CN111140892A (en) * | 2020-01-02 | 2020-05-12 | 杭州老板电器股份有限公司 | Noise reduction device, air duct system and smoke exhaust system |
| CN111583897A (en) * | 2020-05-21 | 2020-08-25 | 清华大学苏州汽车研究院（相城） | Active noise reduction system for kitchen appliance and control method thereof |
| CN114322036A (en) * | 2022-01-28 | 2022-04-12 | 杭州老板电器股份有限公司 | Noise reduction method, noise reduction device and range hood thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106710583A (en) | Active-vibration control method for controlling noise of range hood | |
| CN102314871B (en) | De-noising method and de-noising device for mechanical noise of microphone | |
| CN104980877A (en) | Apparatus and method for converting non-linear vibration of an electro-mechanical transducer | |
| CN104217712B (en) | The active noise reducing device and rock drilling machine of engineering machinery operating room | |
| CN103557043A (en) | Engine noise reduction controller | |
| Betgen et al. | A new hybrid active/passive sound absorber with variable surface impedance | |
| CN204791951U (en) | Initiative noise reduction system in car car | |
| US6385321B1 (en) | Reactive sound absorber | |
| CN107430847A (en) | Active vibration oise damping means | |
| CN103200491B (en) | A kind of based on bubble motion chaos anti-control method in the sound field of parameter perturbation | |
| Meesala et al. | Analysis and prediction of shock formation in acoustic energy transfer systems | |
| US20230336925A1 (en) | Hearing aids | |
| CN106258000A (en) | Acceleration detector and active noise controller | |
| Li et al. | The design of synthesized structural acoustic sensors for active control of interior noise with experimental validation | |
| TW201734298A (en) | Waste air exhausting device having functionality to abate noise and modulate noise frequency | |
| Tatavolu et al. | Embedded computer based active vibration control system for vibration reduction of flexible structures | |
| JP2010249637A (en) | Method for detecting state of fluid and state detecting device | |
| JP5546795B2 (en) | Target wave reduction device | |
| CN203547837U (en) | Engine noise reduction controller | |
| Han et al. | Time-domain simulation for active noise control in a two dimensional duct | |
| Kim et al. | Modeling and dynamic analysis of an electrical Helmholtz resonator for active control of resonant noise | |
| Kuo et al. | Modal analysis of a loudspeaker and its associated acoustic pressure field | |
| CN103982281B (en) | A kind of active noise control system for automobile exhaust system and controlling method thereof | |
| JP2010276773A5 (en) | ||
| Yuan et al. | Effective Low Frequency Noise Insulation Adopting Active Damping Approaches |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
|
| RJ01 | Rejection of invention patent application after publication |