Lautsprechervorrichtung

Details

Veröffentlichungs-Nr.

EP2978243

Aktenzeichen

EP15170084

Anmeldetag

1. Juni 2015

Veröffentlichung

12. Oktober 2016

Erteilung

12. Oktober 2016

Rechtsraum

EP

IPC

H04R9/02

Abstract

To provide a speaker apparatus which can prevent a leaked magnetic field to be attracted from a magnetic field generating unit (20) to a support chassis (10) in a counter-drive method. A support chassis (10) mounted on a sounding side of a speaker apparatus is formed of an iron material, and the support chassis (10) is formed in a shape in which a central supporting part (12) gets closer to a main-body chassis (2). A magnetic field generating unit (20) is fixed to the central supporting part (12) on a side of a recess of the support chassis (10). The support chassis (10) includes a frame part (11), the central supporting part (12), and spoke parts (13). In the spoke part (13), a width dimension D1 of an inner end part is formed narrower than a width dimension D2 of an outer end part. Therefore, a resistance in a case where a magnetic flux passes through the spoke part (13) increases, and the leaked magnetic field is hardly induced from the magnetic field generating unit (20) to the spoke part (13). Therefore, a reduction in a speaker output can be prevented.

Anmelder

Firma

Alpine Electronics, Inc.

Land

🇯🇵 Japan

Fachgebiete