Flat horn

A flat speaker and planar technology, applied in planar diaphragms, frequency/direction characteristic devices, sensors, etc., to achieve significant sound output, achieve ultra-thin, and control the deterioration of sound quality

Active Publication Date: 2014-03-05
谭菊花
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is difficult for the flat-panel speaker disclosed in this invention document to achieve sufficient ultra-thinness while having good output frequency characteristics.

Method used

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Embodiment Construction

[0021] A flat-panel speaker, including a support frame, is characterized in that: at least one sound unit is arranged along the axial direction of the support frame, and each sound unit consists of a planar vibrating membrane that vibrates and emits sound waves and a frame installed along the periphery of the planar vibrating film and responds to the sound. Vibration of the signal action The driving device of the planar vibrating membrane is composed of at least one pair of non-contact spaces on the side of the ditch part opened on the support frame, and the non-contact space is the ditch opened on the support frame Along a cut corner on the outer side of the bottom surface of the part, the frame installed along the periphery of the planar vibrating membrane is bonded to the grooved part provided on the supporting frame. It is characterized in that: the non-contact spaces on both sides of the ditch part opened on the support frame are symmetrically distributed according to the ...

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Abstract

The invention relates to a flat horn including a supporting framework. The flat horn is characterized in that at least one sounding unit is disposed along the axial direction of the supporting framework; each the sounding unit is composed of a plane vibrating membrane emitting sound waves through vibration, a frame body mounted along the periphery of the plane vibrating membrane, and a drive device driving the plane vibrating membrane according to a sound signal; and two side edges of an open groove disposed in the supporting framework respectively have a non-contact space, each the non-contact space is a corner cut disposed in the bottom, along an outside edge, of the open groove disposed in the supporting framework, and the frame body mounted along the periphery of the plane vibrating membrane is adhered to the open groove disposed in the supporting framework. The flat horn has good output frequency characteristic, can achieve an ultrathin structure in condition of large input power, and the sound propagation has the directional property of being forward.

Description

technical field [0001] The invention relates to a flat horn. Background technique [0002] In recent years, in order to meet the demand for ultra-thinning of television receivers equipped with speakers, etc., there has been a demand for ultra-thinning of speakers. For such ultra-thin requirements. It is difficult to fully cope with a conical horn that is approximately hemispherical and a conical horn that vibrates a vibrating plate and outputs sound from an opening. The reason for this is that for a conical horn, in order to make the shape ultra-thin, if the cone is thinned, the inner diameter of the cone will also become smaller, and the sensitivity, especially the sensitivity in the low range, will decrease. The conical horn emits sound from the inner surface of the approximately hemispherical cone to the opening. Therefore, the straightness of the sound output by the conical horn is very weak (weak directivity). [0003] Japanese Patent Application Laid-Open No. 2010-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/20
CPCH04R1/20H04R1/028H04R7/04H04R7/16H04R9/06
Inventor 中野雅树
Owner 谭菊花
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