CN110056495A - New energy vehicle electric vacuum pump active noise reducing device - Google Patents
New energy vehicle electric vacuum pump active noise reducing device Download PDFInfo
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- CN110056495A CN110056495A CN201811594446.6A CN201811594446A CN110056495A CN 110056495 A CN110056495 A CN 110056495A CN 201811594446 A CN201811594446 A CN 201811594446A CN 110056495 A CN110056495 A CN 110056495A
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- China
- Prior art keywords
- vacuum pump
- playing module
- active noise
- module
- new energy
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
Abstract
The invention discloses a kind of new energy vehicle electric vacuum pump active noise reducing devices, including vacuum pump, are additionally provided with denoiser；Denoiser includes acquisition module, analysis module and the playing module of signal connection；Acquisition module acquisition is originated from the noise of vacuum pump, and analysis module analyzes the sound wave of collected noise, obtains frequency, amplitude and waveform, and playing module is driven to play the active noise equal with collected frequency noise and amplitude, waveform is opposite.The beneficial effects of the present invention are: using the means of active noise reduction, there is stronger specific aim, ideal noise reduction effect can be obtained.
Description
Technical field
The invention belongs to automobile manufacturing field, specifically a kind of new energy vehicle electric vacuum pump active noise reducing device.
Background technique
Brake system is the core guarantee of vehicle safety.In general, automobile brake system is all made of hydraulic drive.In order to put
Big braking strength improves transmission effect, is generally fitted with vacuum booster on automobile, is also vacuum booster pump, vacuum pump, helps
Power pump etc..On fuel-engined vehicle, the vacuum of vacuum booster pump is generated by engine, as long as engine operation, so that it may source
Source constantly generates negative pressure and uses for vacuum booster pump.And on the new-energy automobile of not set fuel engines, in order to continue
The hydraulic brake system of mature and reliable is continued to use, electric vacuum pump must be just configured, to replace vacuum booster pump on orthodox car
Effect.Vehicle-mounted electric vacuum pump is driven using individual motor, and noise is larger when work, weakens new-energy automobile low noise
Advantage causes to drive and experiences bad.Traditional noise reduction process usually wraps up acoustic material in sources of noise.However it is electronic true
Calorific value is larger when empty pump work, although can play noise reduction effect using acoustic material, bring side effect is very aobvious
It writes, security risk easy to form.Chinese patent literature CN206144744U discloses a kind of " Motorized vacuum on May 3rd, 2017
Pump denoising structure ", the silencer cover including bottom opening, the noise reduction internal chamber wall being fixedly arranged on the silencer cover inner top surface is sheathed on
Interior noise reduction circle on noise reduction internal chamber wall further includes the second level noise-reducing structure in the silencer cover；The second level noise-reducing structure
Noise reduction fin including being set on the silencer cover inner sidewall, the noise reduction cavity on the silencer cover inner top surface；It is described to disappear
Sound fin includes the small fin group of spaced noise reduction and the big fin group of noise reduction；The small fin group of noise reduction includes that at least one disappears
The small fin of sound, the big fin group of noise reduction includes the big fin of at least one noise reduction.The applicant declares that the utility model structure is simple
It is single, it is low in cost, it can be effectively reduced the noise of electric vacuum pump generation, improve vehicle, especially New-energy electric vehicle
Mute performance promotes vehicle driving quality.But the passive noise-reduction method of this quasi-tradition, the specific aim of noise reduction is not strong, noise reduction effect
Fruit is still undesirable.
Summary of the invention
Based on problem above, the present invention provides a kind of new energy vehicle electric vacuum pump active noise reducing device, uses master
The means of dynamic noise reduction, have stronger specific aim, can obtain ideal noise reduction effect.
In order to realize goal of the invention, the present invention adopts the following technical scheme: a kind of new energy vehicle electric vacuum pump is actively
Denoising device, including vacuum pump, are additionally provided with denoiser；Denoiser includes acquisition module, analysis module and the broadcasting of signal connection
Module；Acquisition module acquisition is originated from the noise of vacuum pump, and analysis module analyzes the sound wave of collected noise, obtains frequency
Rate, amplitude and waveform, and drive playing module to play active equal with collected frequency noise and amplitude, that waveform is opposite and make an uproar
Sound.
The new energy vehicle electric vacuum pump active noise reducing device of this programme design, including electric vacuum pump and denoiser.
Electric vacuum pump is typically mounted in cabin.Denoiser includes the three zones module of signal connection: acquisition module, analysis mould
Block and playing module.Acquisition module acquisition is originated from the noise of vacuum pump；Analysis module divides the sound wave of collected noise
Analysis obtains frequency, amplitude and waveform, and playing module is driven to play, waveform phase equal with collected frequency noise and amplitude
Anti- active noise.Active noise can be played simultaneously after detecting the noise of vacuum pump in design in this way, denoiser,
Active noise and the passive noise that vacuum pump issues are completely the same in frequency and amplitude, but slim on the contrary, therefore passively making an uproar
Sound is superimposed with both active noise peak valleys, realizes the active abatement of noise.In different positions, different distances, sound away from sound source
The volume and tone of sound are all different, thus this programme accurately calculate and field test after, the position of each generation part
Just it is fixed.Once one of component changes, the position of other components is also required to relocate, best to realize
Noise reduction effect.In practical applications, acquisition module can use presently commercially available product；Analysis module is that inventor voluntarily grinds
System realizes that the existing audio processing software for having correlation function can be used in the kernel software of analysis module function；Playing module can
Simply to use loudspeaker and necessary electric elements to combine, existing commercially available teller machines also can be used.Analysis module
Can be includes the single-chip microcontroller for controlling software, which can be independently arranged；Can be will be including control software encapsulation
Chip, the chip can integrate in car running computer.According to the actual conditions of acquisition module and broadcast module, those skilled in the art
Member can be adaptively adjusted playing module.
Preferably, acquisition module is arranged in cockpit.Since the noise in cockpit seriously affects driver and passenger's
Impression, therefore acquisition module should be mounted in cockpit, and using the noise reduction effect at this as measurement standard.
Preferably, vacuum pump is equipped with vaccum pump motor；Playing module is fixed on by vaccum pump motor.Vaccum pump motor is
Vacuum pump generates the core component of noise, and playing module is placed on by vacuum pump, can make active noise and come from vacuum pump
The Overlay of the passive noise of motor is most significant.
Preferably, vacuum pump is fixed by vacuum pump support and vehicle body；Playing module includes being fixed on vacuum pump support
On playing module pedestal, be fixedly installed with circuit board and loudspeaker on playing module pedestal.It is close in the cabin in order to help
The fixed playing module in the position of vaccum pump motor, this programme secure playing module pedestal, playing module on vacuum pump support
In include that the electronic equipments such as necessary circuit board, loudspeaker are each attached on playing module pedestal.
Preferably, loudspeaker abuts vaccum pump motor.Loudspeaker issues active noise, and vacuum pump issues passive noise,
The two is closer to peak valley Overlay is better.
Preferably, being additionally provided with playing module bracket；The stabilizer blade of playing module bracket is fixed on vacuum pump support, is played
Modular substrate is fixed on playing module bracket, and playing module pedestal is not contacted with vaccum pump motor.Use playing module branch
Frame can be such that playing module pedestal does not contact with vaccum pump motor, and vibration interference when avoiding vaccum pump motor work plays
Modular substrate, and then influence the work of playing module.
Preferably, denoiser works asynchronously with vacuum pump.Denoiser is designed to work asynchronously with vacuum pump, therefore makes
It, will not extra consumption electric energy with convenience.
In conclusion there is stronger specific aim the beneficial effects of the present invention are: using the means of active noise reduction, it can
To obtain ideal noise reduction effect.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention, and arrow show headstock direction.
Fig. 2 is the structural schematic diagram of playing module and vacuum pump of the invention.
Wherein: 1 vacuum pump, 3 vaccum pump motors, 4 vacuum pump supports, 5 playing module pedestals, 6 circuit boards, 7 loudspeakers, 8
Playing module bracket, A acquisition module, B analysis module, C playing module.
Specific embodiment
The present invention will be further described with specific embodiment with reference to the accompanying drawing.
Embodiment as shown in Figure 1 is a kind of new energy vehicle electric vacuum pump active noise reducing device, it is new to be mounted on certain money
In energy vehicle.
The present apparatus includes vacuum pump 1 and denoiser, and wherein denoiser includes the acquisition module A of signal connection, analysis mould again
Block B and playing module C.Vacuum pump, analysis module and playing module are each attached in cabin, and acquisition module is fixed on cockpit
It is interior.Wherein, acquisition module uses SIEMENS Test.lab analysis of experiments system, G.R.A.S microphone and attachment；Analysis
Module is a single-chip microcontroller being fixed in cabin, and GOLD WAVE software built in the single-chip microcontroller can be collected to acquisition module
Sound carries out " reverse phase " processing, and playing module is driven to play output；Playing module is conventional loudspeaker.
As shown in Fig. 2, vacuum pump is fixed in cabin by vacuum pump support 4, broadcasting is fixed on vacuum pump support
Module carrier 8.Playing module branch is provided with two stabilizer blades, and two stabilizer blades are fixed with vacuum pump support, playing module mid-stent
It is fixed with playing module pedestal 5.Circuit board 6 and loudspeaker 7 are electrically installed on playing module pedestal.Vacuum pump is equipped with vacuum pump
Motor 3, playing module pedestal is located on the axis of vaccum pump motor in this example, but playing module pedestal and vaccum pump motor are not
Contact.The setting that loudspeaker abuts is above vaccum pump motor.
The new energy vehicle electric vacuum pump active noise reducing device of this example, denoiser work asynchronously with vacuum pump.Work as acquisition
Module collects in cockpit after the noise from vacuum pump, and analysis module just analyzes the sound wave of collected noise,
It calculates and obtains frequency, amplitude and waveform, and playing module is driven to play, waveform phase equal with collected frequency noise and amplitude
Anti- active noise.Active noise and the passive noise that vacuum pump issues are completely the same in frequency and amplitude, but wave mode phase
Instead, therefore passive noise is superimposed with both active noise peak valleys, realizes the active abatement of noise.
Using the technical program, opposite-flushing type reduction can be carried out to noise from source, with strong points, effect is good.
Claims (7)
1. a kind of new energy vehicle electric vacuum pump active noise reducing device, including vacuum pump (1), characterized in that be additionally provided with noise reduction
Device；Denoiser includes acquisition module (A), analysis module (B) and the playing module (C) of signal connection；Acquisition module acquisition is originated from
The noise of vacuum pump, analysis module analyze the sound wave of collected noise, obtain frequency, amplitude and waveform, and drive
Playing module plays the active noise equal with collected frequency noise and amplitude, waveform is opposite.
2. a kind of new energy vehicle electric vacuum pump active noise reducing device according to claim 1, characterized in that acquisition mould
Block is arranged in cockpit.
3. a kind of new energy vehicle electric vacuum pump active noise reducing device according to claim 1 or 2, characterized in that true
Sky pump is equipped with vaccum pump motor (3)；Playing module is fixed on by vaccum pump motor.
4. a kind of new energy vehicle electric vacuum pump active noise reducing device according to claim 3, characterized in that vacuum pump
It is fixed by being fixed with (4) with vehicle body；Playing module includes the playing module pedestal (5) being fixed on vacuum pump support, is played
Circuit board (6) and loudspeaker (7) are fixedly installed on modular substrate.
5. a kind of new energy vehicle electric vacuum pump active noise reducing device according to claim 4, characterized in that loudspeaker
Against vaccum pump motor.
6. any one new energy vehicle electric vacuum pump active noise reducing device according to claim 4, characterized in that also
Equipped with playing module bracket (8)；The stabilizer blade of playing module bracket is fixed on vacuum pump support, and playing module pedestal, which is fixed on, to be broadcast
On amplification module bracket, and playing module pedestal is not contacted with vaccum pump motor.
7. any one new energy vehicle electric vacuum pump active noise reducing device according to claim 1 or 2, feature
It is that denoiser works asynchronously with vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811594446.6A CN110056495A (en) | 2018-12-25 | 2018-12-25 | New energy vehicle electric vacuum pump active noise reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811594446.6A CN110056495A (en) | 2018-12-25 | 2018-12-25 | New energy vehicle electric vacuum pump active noise reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056495A true CN110056495A (en) | 2019-07-26 |
Family
ID=67315416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811594446.6A Pending CN110056495A (en) | 2018-12-25 | 2018-12-25 | New energy vehicle electric vacuum pump active noise reducing device |
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| CN (1) | CN110056495A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299305A (en) * | 2021-05-21 | 2021-08-24 | 昆山宝创新能源科技有限公司 | Noise reduction method and device for automobile circuit breaking box, electronic equipment and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0981157A (en) * | 1995-09-14 | 1997-03-28 | Matsushita Electric Works Ltd | Pump noise muffling device |
| EP0766288A2 (en) * | 1995-09-28 | 1997-04-02 | Siemens Aktiengesellschaft | Device and method for treating semiconductor elements |
| WO2005043510A1 (en) * | 2003-10-30 | 2005-05-12 | Asahi Breweries, Ltd. | Device having low frequency noise suppressing mechanism |
| CN1694161A (en) * | 2005-03-10 | 2005-11-09 | 南京大学 | Control system for active noise of hydraulic pump |
| CN203444957U (en) * | 2013-09-23 | 2014-02-19 | 国网重庆市电力公司永川供电分公司 | Transformer self-adaptation active noise reduction device |
| CN108156555A (en) * | 2016-12-02 | 2018-06-12 | 中车株洲电力机车研究所有限公司 | A kind of train active noise reduction system and method |
| CN108597490A (en) * | 2018-06-19 | 2018-09-28 | 山东共达电声股份有限公司 | A kind of car audio clunk management system |
| CN209704791U (en) * | 2018-12-25 | 2019-11-29 | 浙江零跑科技有限公司 | New energy vehicle electric vacuum pump active noise reducing device |
-
2018
- 2018-12-25 CN CN201811594446.6A patent/CN110056495A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0981157A (en) * | 1995-09-14 | 1997-03-28 | Matsushita Electric Works Ltd | Pump noise muffling device |
| EP0766288A2 (en) * | 1995-09-28 | 1997-04-02 | Siemens Aktiengesellschaft | Device and method for treating semiconductor elements |
| WO2005043510A1 (en) * | 2003-10-30 | 2005-05-12 | Asahi Breweries, Ltd. | Device having low frequency noise suppressing mechanism |
| CN1694161A (en) * | 2005-03-10 | 2005-11-09 | 南京大学 | Control system for active noise of hydraulic pump |
| CN203444957U (en) * | 2013-09-23 | 2014-02-19 | 国网重庆市电力公司永川供电分公司 | Transformer self-adaptation active noise reduction device |
| CN108156555A (en) * | 2016-12-02 | 2018-06-12 | 中车株洲电力机车研究所有限公司 | A kind of train active noise reduction system and method |
| CN108597490A (en) * | 2018-06-19 | 2018-09-28 | 山东共达电声股份有限公司 | A kind of car audio clunk management system |
| CN209704791U (en) * | 2018-12-25 | 2019-11-29 | 浙江零跑科技有限公司 | New energy vehicle electric vacuum pump active noise reducing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299305A (en) * | 2021-05-21 | 2021-08-24 | 昆山宝创新能源科技有限公司 | Noise reduction method and device for automobile circuit breaking box, electronic equipment and storage medium |
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Address after: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Zero run Technology Co.,Ltd. Address before: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Applicant before: ZHEJIANG LEAPMOTOR TECHNOLOGY Co.,Ltd. |