WO2008120339A1 - Av device and amplifier - Google Patents

Av device and amplifier Download PDF

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Publication number
WO2008120339A1
WO2008120339A1 PCT/JP2007/056783 JP2007056783W WO2008120339A1 WO 2008120339 A1 WO2008120339 A1 WO 2008120339A1 JP 2007056783 W JP2007056783 W JP 2007056783W WO 2008120339 A1 WO2008120339 A1 WO 2008120339A1
Authority
WO
WIPO (PCT)
Prior art keywords
space
vent holes
amplifier
casing
air
Prior art date
Application number
PCT/JP2007/056783
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroaki Taguchi
Takao Yamazaki
Yuichi Watamura
Shuji Okano
Original Assignee
Pioneer Corporation
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 Pioneer Corporation filed Critical Pioneer Corporation
Priority to PCT/JP2007/056783 priority Critical patent/WO2008120339A1/en
Publication of WO2008120339A1 publication Critical patent/WO2008120339A1/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
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

An AV amplifier (1) in which a space in a casing is divided into upper and lower spaces, and a preamplifier section (301) is installed in the upper space (30) and a power amplifier section (101) is installed in the lower space. The AV amplifier has vent holes (2) formed in the respective side surfaces of the casing, an air layer (20) which is formed between the upper space (30) and the lower space (10) in the casing and takes in the air flowing through the vent holes (2), vent holes (4) formed in the bottom surface (22) of the upper space (30) and introducing the air flown in the air layer (20) into the upper space (30), and vent holes (3) formed in the upper surface (13) of the upper space (30) and introducing the air flown in the upper space (30) to the outside. The upper surface (21) of the lower space (10) has no hole. The power amplifier (101) installed in the lower space (10) includes a heat radiator (102) exposed to the outside through the bottom surface (12) of the lower space (10).
PCT/JP2007/056783 2007-03-29 2007-03-29 Av device and amplifier WO2008120339A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056783 WO2008120339A1 (en) 2007-03-29 2007-03-29 Av device and amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056783 WO2008120339A1 (en) 2007-03-29 2007-03-29 Av device and amplifier

Publications (1)

Publication Number Publication Date
WO2008120339A1 true WO2008120339A1 (en) 2008-10-09

Family

ID=39807932

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/056783 WO2008120339A1 (en) 2007-03-29 2007-03-29 Av device and amplifier

Country Status (1)

Country Link
WO (1) WO2008120339A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182489U (en) * 1982-05-31 1983-12-05 パイオニア株式会社 Placement stand for amplifiers, etc.
JPS60107898A (en) * 1983-11-16 1985-06-13 株式会社日立製作所 Cooling structure of electronic device
JPS62158895U (en) * 1986-03-31 1987-10-08
JPS6359395U (en) * 1986-10-06 1988-04-20
JPH0832279A (en) * 1994-07-20 1996-02-02 Toshiba Corp Housing structure for electronic apparatus
JPH10126924A (en) * 1996-10-16 1998-05-15 Harness Sogo Gijutsu Kenkyusho:Kk Electric connector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182489U (en) * 1982-05-31 1983-12-05 パイオニア株式会社 Placement stand for amplifiers, etc.
JPS60107898A (en) * 1983-11-16 1985-06-13 株式会社日立製作所 Cooling structure of electronic device
JPS62158895U (en) * 1986-03-31 1987-10-08
JPS6359395U (en) * 1986-10-06 1988-04-20
JPH0832279A (en) * 1994-07-20 1996-02-02 Toshiba Corp Housing structure for electronic apparatus
JPH10126924A (en) * 1996-10-16 1998-05-15 Harness Sogo Gijutsu Kenkyusho:Kk Electric connector

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