WO2008046815A3 - Noise-modifying device - Google Patents

Noise-modifying device Download PDF

Info

Publication number
WO2008046815A3
WO2008046815A3 PCT/EP2007/060981 EP2007060981W WO2008046815A3 WO 2008046815 A3 WO2008046815 A3 WO 2008046815A3 EP 2007060981 W EP2007060981 W EP 2007060981W WO 2008046815 A3 WO2008046815 A3 WO 2008046815A3
Authority
WO
WIPO (PCT)
Prior art keywords
noise
piezoelectric film
producing installation
modifying device
film sensor
Prior art date
Application number
PCT/EP2007/060981
Other languages
German (de)
French (fr)
Other versions
WO2008046815A2 (en
Inventor
Uwe Klossowski
Original Assignee
BSH Bosch und Siemens Hausgeräte GmbH
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
Priority claimed from US11/581,904 external-priority patent/US8054984B2/en
Application filed by BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2008046815A2 publication Critical patent/WO2008046815A2/en
Publication of WO2008046815A3 publication Critical patent/WO2008046815A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/005—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion using electro- or magnetostrictive actuation means
    • 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
    • G10K11/1783—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 handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
    • 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
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • 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
    • G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • 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
    • G10K11/17873—General system configurations using a reference signal without an error signal, e.g. pure feedforward
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/105—Appliances, e.g. washing machines or dishwashers
    • G10K2210/1054—Refrigerators

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

The invention relates to a noise-modifying device for modifying predetermined noise levels of a noise-producing installation. The noise-modifying device according to the invention is characterized in that it comprises at least one piezoelectric film sensor (24a,..., 24I) which is arranged in relation to the noise-producing installation, said at least one piezoelectric film sensor (24a,..., 24I) being operable to convert the acoustic wave energy to an electro-acoustic signal, and one or more electric circuits which electrically communicate with the at least one piezoelectric film sensor (24a,..., 24I) to receive the electro-acoustic signals and to guide the electric signal to a ground connection (30), or to generate a balancing acoustic wave energy in the proximity of the noise-producing installation, thereby reducing the noise that can be heard outside the noise-producing installation.
PCT/EP2007/060981 2006-10-16 2007-10-15 Noise-modifying device WO2008046815A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/581,904 US8054984B2 (en) 2006-10-16 2006-10-16 Sound altering apparatus
US11/581,904 2006-10-16
DE102006060033A DE102006060033A1 (en) 2006-10-16 2006-12-19 Noise changing device
DE102006060033.9 2006-12-19

Publications (2)

Publication Number Publication Date
WO2008046815A2 WO2008046815A2 (en) 2008-04-24
WO2008046815A3 true WO2008046815A3 (en) 2009-10-29

Family

ID=39314389

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/060981 WO2008046815A2 (en) 2006-10-16 2007-10-15 Noise-modifying device

Country Status (2)

Country Link
CA (1) CA2606442A1 (en)
WO (1) WO2008046815A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010002126A1 (en) 2010-02-18 2011-08-18 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Dishwasher i.e. household dishwasher, for use in kitchen in housing space, has rinsing container and door closing inner space of rinsing container, and passive noise reduction device and active noise reduction device provided in dishwasher
WO2016073254A1 (en) 2014-11-03 2016-05-12 Emerson Electric Co. Food waste disposer noise reduction using active noise control
CN111878667A (en) * 2020-06-23 2020-11-03 陕西津阳水处理股份有限公司 Noise reduction equipment with heat dissipation function for refrigerator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011529A1 (en) * 1991-12-02 1993-06-10 Noise Cancellation Technologies, Inc. Active noise control of an enclosure with multiple transducers
US5692053A (en) * 1992-10-08 1997-11-25 Noise Cancellation Technologies, Inc. Active acoustic transmission loss box
EP0959453A2 (en) * 1998-05-20 1999-11-24 DaimlerChrysler AG Active noise cancellation system for noise-emitting surfaces
US6075308A (en) * 1997-11-25 2000-06-13 The Institute Of Physical And Chemical Research Variably sound-absorbing device
US20050226435A1 (en) * 2004-04-02 2005-10-13 Steer Clive R Active noise cancellation system, arrangement, and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011529A1 (en) * 1991-12-02 1993-06-10 Noise Cancellation Technologies, Inc. Active noise control of an enclosure with multiple transducers
US5692053A (en) * 1992-10-08 1997-11-25 Noise Cancellation Technologies, Inc. Active acoustic transmission loss box
US6075308A (en) * 1997-11-25 2000-06-13 The Institute Of Physical And Chemical Research Variably sound-absorbing device
EP0959453A2 (en) * 1998-05-20 1999-11-24 DaimlerChrysler AG Active noise cancellation system for noise-emitting surfaces
US20050226435A1 (en) * 2004-04-02 2005-10-13 Steer Clive R Active noise cancellation system, arrangement, and method

Also Published As

Publication number Publication date
WO2008046815A2 (en) 2008-04-24
CA2606442A1 (en) 2008-04-16

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