WO2008093238A3 - Loudspeaker with ventilation shafts for air gap cooling - Google Patents

Loudspeaker with ventilation shafts for air gap cooling Download PDF

Info

Publication number
WO2008093238A3
WO2008093238A3 PCT/IB2008/000449 IB2008000449W WO2008093238A3 WO 2008093238 A3 WO2008093238 A3 WO 2008093238A3 IB 2008000449 W IB2008000449 W IB 2008000449W WO 2008093238 A3 WO2008093238 A3 WO 2008093238A3
Authority
WO
WIPO (PCT)
Prior art keywords
chassis
air gap
loudspeaker
diaphragm
magnet system
Prior art date
Application number
PCT/IB2008/000449
Other languages
French (fr)
Other versions
WO2008093238A2 (en
WO2008093238A8 (en
Inventor
Alex Geltmeyer
Original Assignee
Pss Belgium Nv
Alex Geltmeyer
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 Pss Belgium Nv, Alex Geltmeyer filed Critical Pss Belgium Nv
Publication of WO2008093238A2 publication Critical patent/WO2008093238A2/en
Publication of WO2008093238A3 publication Critical patent/WO2008093238A3/en
Publication of WO2008093238A8 publication Critical patent/WO2008093238A8/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/022—Cooling arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

A loudspeaker comprises a chassis (1) having a front (Ia), a diaphragm (3) movably suspended from the chassis, and an electromagnetic driver (5) for driving the diaphragm with regard to the chassis. The driver includes a magnet system (7) connected to the chassis and a voice coil (9) connected to the diaphragm to cooperate with the magnet system via an air gap (11). In order to create sufficient cooling capacity at least one ventilation shaft (30) is provided which is connected to at least one ventilation hole (40) in the magnet system and which ends in or near the front of the chassis, wherein the at least one ventilation hole is in communication with the air gap.
PCT/IB2008/000449 2007-02-01 2008-01-31 Loudspeaker with ventilation shafts for air gap cooling WO2008093238A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07101559.8 2007-02-01
EP07101559 2007-02-01

Publications (3)

Publication Number Publication Date
WO2008093238A2 WO2008093238A2 (en) 2008-08-07
WO2008093238A3 true WO2008093238A3 (en) 2008-10-16
WO2008093238A8 WO2008093238A8 (en) 2009-07-23

Family

ID=39539706

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/000449 WO2008093238A2 (en) 2007-02-01 2008-01-31 Loudspeaker with ventilation shafts for air gap cooling

Country Status (1)

Country Link
WO (1) WO2008093238A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8577074B2 (en) * 2011-02-14 2013-11-05 Robert Bosch Gmbh Vortex cooling of voice coils
GB2542842B (en) * 2015-10-01 2021-03-31 Tymphany Hong Kong Ltd Self-cooling loudspeaker
DK179065B1 (en) * 2015-10-01 2017-10-02 Tymphany Hong Kong Ltd Self-cooling loudspeaker
US9743193B2 (en) * 2015-10-01 2017-08-22 Tymphany Hong Kong Ltd. Self-cooling loudspeaker

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5894524A (en) * 1995-08-02 1999-04-13 Boston Acoustics, Inc. High power tweeter
US5909015A (en) * 1998-03-26 1999-06-01 Yamamoto; Shuji Self-cooled loudspeaker
US20030215108A1 (en) * 2002-05-15 2003-11-20 Shelley Kenneth Steven Air pump speaker
JP2004186898A (en) * 2002-12-02 2004-07-02 Sony Corp Speaker
EP1594342A2 (en) * 2004-05-07 2005-11-09 Pioneer Corporation Speaker with ventilating duct

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5894524A (en) * 1995-08-02 1999-04-13 Boston Acoustics, Inc. High power tweeter
US5909015A (en) * 1998-03-26 1999-06-01 Yamamoto; Shuji Self-cooled loudspeaker
US20030215108A1 (en) * 2002-05-15 2003-11-20 Shelley Kenneth Steven Air pump speaker
JP2004186898A (en) * 2002-12-02 2004-07-02 Sony Corp Speaker
EP1594342A2 (en) * 2004-05-07 2005-11-09 Pioneer Corporation Speaker with ventilating duct

Also Published As

Publication number Publication date
WO2008093238A2 (en) 2008-08-07
WO2008093238A8 (en) 2009-07-23

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