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Loudspeaker structure

A technology of loudspeaker and vibrating element, applied in the field of structure of diaphragm loudspeaker

Active Publication Date: 2020-01-17
ASK IND SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such piezoelectric transducers have no diaphragm and are used as vibrators that require contact with a rigid vibrating surface in order to produce sound

Method used

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  • Loudspeaker structure
  • Loudspeaker structure
  • Loudspeaker structure

Examples

Experimental program
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Embodiment Construction

[0041] Referring to the drawings, a loudspeaker of the present invention, generally indicated by the reference numeral 100, is disclosed.

[0042] refer to figure 1 , the loudspeaker 100 includes a magnetic assembly M in which an air gap T is created.

[0043] The voice coil 1 is mounted on a cylindrical support 10 with the possibility of axial movement in the air gap T of the magnetic assembly. The voice coil 1 shown in the figure has only one winding, but may have multiple windings. The frame 2 is fixed on the magnetic assembly M.

[0044] The centering device 3 is fixed to the frame 2 of the voice coil and to the cylindrical support 10 in order to keep the voice coil 1 in the air gap T of the magnetic assembly. The centering device 3 comprises at least one elastic suspension. The centering device 3 is optional and may not be provided, for example, in a tweeter.

[0045] The diaphragm 4 is fixed on the cylindrical support 10 of the voice coil. The diaphragm 4 is flat, ...

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Abstract

A loudspeaker (100) comprises: a magnetic unit (M), a voice coil (1) axially movable in the air gap (T) of the magnetic unit, a basket (2) fixed to the magnetic unit (M), a membrane (4) fixed to the cylindrical support (10) of the voice coil and connected to the basket (2), and a vibrating element (9) fixed to said membrane by means of a rim (5). The vibrating element (9) comprises: a base (90) fixed to the membrane, a shank (91) that projects from the base and a mass (92) that projects from the shank (91) in cantilever mode.

Description

technical field [0001] This patent application for industrial invention relates to the construction of diaphragm loudspeakers, in particular for controlling the modes of vibration of the loudspeaker diaphragm. Background technique [0002] Various types of diaphragm speakers are known. This type of loudspeaker has problems related to the vibration of the diaphragm, especially at mid and high frequencies, which impairs the quality of the sound emitted by the loudspeaker. [0003] In the prior art, problems related to the vibration of the diaphragm are solved by adding masses at various points of the diaphragm. [0004] WO2005 / 101899 discloses a diaphragm loudspeaker, wherein a circular or elliptical shaped mass is peripherally arranged on the surface of the diaphragm of the loudspeaker. [0005] EP2663092 discloses a diaphragm loudspeaker in which a single central mass having a disk-like shape is arranged below the diaphragm. [0006] US8695753 discloses a diaphragm loudsp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/26H04R9/06
CPCH04R7/26H04R9/06H04R2207/021H04R9/027H04R9/045
Inventor D·齐纳尼
Owner ASK IND SPA
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