Lautsprecher und Verfahren zur Herstellung eines Lautsprechers

Details

Veröffentlichungs-Nr.

EP4815510

Anmeldetag

12. März 2026

Veröffentlichung

30. September 2026

Rechtsraum

EP

Abstract

A loudspeaker includes: a diaphragm having a first end attached to a frame and a second end attached to a bobbin; magnetic circuitry arranged in a vicinity of the bobbin; a first magnet to vibrate the diaphragm based on a voice signal applied to a voice coil; a second magnet fixed to a rear surface of the first end of the diaphragm; a magnetic detector; a third magnet; and a holder to hold the magnetic detector and the third magnet. The holder is fixed to the frame to be positioned with respect to the second magnet by using a positioning portion used to fix the second magnet in place, and the magnetic detector is to detect displacement of the diaphragm based on a first magnetic field generated by the second magnet and a second magnetic field generated in a direction different from the first magnetic field by the third magnet.

Anmelder

Firma

Alps Alpine Co., Ltd.

Land

🇯🇵 Japan