Loudspeaker unit and loudspeaker flexural diaphragm

Abstract

Provided is a flexural diaphragm speaker system having higher performance satisfying hearing impaired persons and hearing normal persons and having high quality. A speaker unit (10) is provided with at least a tapered first diaphragm (1), a curved sheet-shaped second diaphragm (2), and a driver unit (3) that drives the first diaphragm and the second diaphragm together. A small-diameter side (1a) of the first diaphragm and one end side (2a) of the second diaphragm are connected to the driver unit. When the loudspeaker unit is installed in a housing (50) and used as a loudspeaker (100), the large diameter side (1b) of a first vibration plate is connected with a support plate (511) of a support member (51) forming a part of the housing, and the other end side (2b) of a second vibration plate is connected with a support leg (513) of the support member forming a part of the housing.

Description

technical field [0001] The present invention relates to a loudspeaker and a loudspeaker unit using a bending vibrating plate. Specifically, it relates to a loudspeaker that enables a hearing-impaired person to converse with a normal-hearing person without wearing a hearing aid, and to hear the other party's voice, and to expand the playback frequency band. Higher performance composite flexural vibration plate loudspeaker system. Background technique [0002] In recent years, people with so-called hearing impairments such as geriatric hearing impairment caused by aging, organic hearing impairment caused by damage to the outer ear, middle ear, inner ear, and cochlear nerve, and functional hearing impairment caused by stress Gradually increasing, the number of hearing-impaired persons in Japan is estimated to be 20 million. When you have a hearing impairment, not only can you not hear sounds, but it is difficult to clearly distinguish even audible sounds. Therefore, there may...

AI Technical Summary

Problems solved by technology

[0013] However, in such a compound loudspeaker system, although the casings for installing the loudspeaker units can be shared, two loudspeaker units (bending vibration plate loudspeaker unit and dynamic loudspeaker unit) corresponding to the playback frequency band are required, so the cost is relatively high.

[0014] In addition, if each speaker unit is installed relative to the casing in such a way that the sound emission direction of the bending vibration plate and the conical vibration plate are the same in order to ensure better sound pressure sensitivity emitted by the two speakers, a larger sound pressure is required. Setting the area will make the shell huge

On the other hand, if the sound emission directions of the bending vibration plate and the conical vibration plate are different in consideration of the installation area, one of the speakers cannot obtain sufficient sound pressure sensitivity.

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