WO2011039674A3 - Noise reduction for an acoustic cooling system - Google Patents

Noise reduction for an acoustic cooling system Download PDF

Info

Publication number
WO2011039674A3
WO2011039674A3 PCT/IB2010/054236 IB2010054236W WO2011039674A3 WO 2011039674 A3 WO2011039674 A3 WO 2011039674A3 IB 2010054236 W IB2010054236 W IB 2010054236W WO 2011039674 A3 WO2011039674 A3 WO 2011039674A3
Authority
WO
WIPO (PCT)
Prior art keywords
cooling system
transducer
noise reduction
acoustic cooling
drive signal
Prior art date
Application number
PCT/IB2010/054236
Other languages
French (fr)
Other versions
WO2011039674A2 (en
Inventor
Robertus Leonardus Tousain
Ronaldus Maria Aarts
Adriaan Johan Van Leest
Daniël Anton BENOY
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Priority to US13/497,256 priority Critical patent/US20120186271A1/en
Priority to JP2012530395A priority patent/JP2013506075A/en
Priority to EP10765506A priority patent/EP2482999A2/en
Priority to CN2010800435516A priority patent/CN102576526A/en
Publication of WO2011039674A2 publication Critical patent/WO2011039674A2/en
Publication of WO2011039674A3 publication Critical patent/WO2011039674A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F7/00—Pumps displacing fluids by using inertia thereof, e.g. by generating vibrations therein
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback

Abstract

The present invention relates to an acoustic cooling system (1) arranged for cooling by generating sound waves, said system (1) comprising a transducer (2) and a control unit (6) configured to generate a drive signal (Sl) for exciting said transducer (2), wherein said drive signal is a multi-harmonic drive signal comprising at least one higher harmonic (A2-A5) selected to reduce the presence of at least one corresponding higher harmonic (B2- B5) comprised in the sound waves. The system is advantageous in that noise-reduction can be achieved without the need of incorporating a second transducer, thereby enabling a compact acoustic cooling system at a low cost.
PCT/IB2010/054236 2009-09-29 2010-09-20 Noise reduction for an acoustic cooling system WO2011039674A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US13/497,256 US20120186271A1 (en) 2009-09-29 2010-09-20 Noise reduction for an acoustic cooling system
JP2012530395A JP2013506075A (en) 2009-09-29 2010-09-20 Noise reduction for acoustic cooling systems
EP10765506A EP2482999A2 (en) 2009-09-29 2010-09-20 Noise reduction for an acoustic cooling system
CN2010800435516A CN102576526A (en) 2009-09-29 2010-09-20 Noise reduction for an acoustic cooling system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09171641.5 2009-09-29
EP09171641 2009-09-29

Publications (2)

Publication Number Publication Date
WO2011039674A2 WO2011039674A2 (en) 2011-04-07
WO2011039674A3 true WO2011039674A3 (en) 2012-02-02

Family

ID=43826723

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/054236 WO2011039674A2 (en) 2009-09-29 2010-09-20 Noise reduction for an acoustic cooling system

Country Status (6)

Country Link
US (1) US20120186271A1 (en)
EP (1) EP2482999A2 (en)
JP (1) JP2013506075A (en)
CN (1) CN102576526A (en)
TW (1) TW201124692A (en)
WO (1) WO2011039674A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH703357A1 (en) * 2010-06-25 2011-12-30 Alstom Technology Ltd HEAT-LOADED, COOLED COMPONENT.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6625285B1 (en) * 1997-10-16 2003-09-23 Fujitsu Limited Acoustic cooling system with noise reduction function
US20070272393A1 (en) * 2006-02-23 2007-11-29 Nuventix, Inc. Electronics package for synthetic jet ejectors
WO2008053435A1 (en) * 2006-11-03 2008-05-08 Koninklijke Philips Electronics N.V. Active control of an acoustic cooling system
US20090205903A1 (en) * 2005-12-15 2009-08-20 Muller-Bbm Gmbh Method and system for actively influencing noise, and use thereof in a motor vehicle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5091953A (en) * 1990-02-13 1992-02-25 University Of Maryland At College Park Repetitive phenomena cancellation arrangement with multiple sensors and actuators
US5502770A (en) * 1993-11-29 1996-03-26 Caterpillar Inc. Indirectly sensed signal processing in active periodic acoustic noise cancellation
US5412951A (en) * 1993-12-22 1995-05-09 Hughes Aircraft Company Cyrogenic cooling system with active vibration control
JP4273926B2 (en) * 2003-10-29 2009-06-03 株式会社日立製作所 Silencer and projector using the same
JP4711802B2 (en) * 2005-11-01 2011-06-29 ティーオーエー株式会社 Electric fan drive unit
US7932535B2 (en) * 2005-11-02 2011-04-26 Nuventix, Inc. Synthetic jet cooling system for LED module
JP2009044268A (en) * 2007-08-06 2009-02-26 Sharp Corp Sound signal processing device, sound signal processing method, sound signal processing program, and recording medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6625285B1 (en) * 1997-10-16 2003-09-23 Fujitsu Limited Acoustic cooling system with noise reduction function
US20090205903A1 (en) * 2005-12-15 2009-08-20 Muller-Bbm Gmbh Method and system for actively influencing noise, and use thereof in a motor vehicle
US20070272393A1 (en) * 2006-02-23 2007-11-29 Nuventix, Inc. Electronics package for synthetic jet ejectors
WO2008053435A1 (en) * 2006-11-03 2008-05-08 Koninklijke Philips Electronics N.V. Active control of an acoustic cooling system

Also Published As

Publication number Publication date
US20120186271A1 (en) 2012-07-26
CN102576526A (en) 2012-07-11
WO2011039674A2 (en) 2011-04-07
EP2482999A2 (en) 2012-08-08
JP2013506075A (en) 2013-02-21
TW201124692A (en) 2011-07-16

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