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Composite vibration film

A composite, central technology, applied in the field of loudspeakers, can solve the problems of affecting the energy dissipation of the diaphragm, unable to provide high-definition sound quality, and the limitation of the ductility of the diaphragm, and achieve high hardness, large elastic deformation, and good ductility. Effect

Inactive Publication Date: 2014-07-09
MERRY ELECTRONICS (SUZHOU) CO LTD
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Problems solved by technology

[0003] However, under the premise of the same size and shape, the diaphragm must have sufficient hardness and toughness to withstand severe repeated movements to avoid inelastic deformation or even In the case of cracking, in order to solve the above problems, the current traditional method is to lay engineering ceramics on the surface of the diaphragm to form a so-called ceramic diaphragm to improve the mechanical properties of the diaphragm itself, but the high brittleness of engineering ceramics will actually affect the vibration. The ductility of the membrane causes a certain degree of restriction, which will inevitably affect the energy dissipation of the diaphragm and cannot provide high-definition sound quality

Method used

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Examples

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Effect test

Embodiment 1

[0022] Embodiment one: see attached figure 1 As shown, a composite diaphragm 10 includes a substrate 20 and a micro-nano ceramic layer 30 .

[0023] The material used for the base material 20 can be selected from one of metal, polymer material, cloth, silk, hemp, paper or composite material, and is not particularly limited here. In this embodiment, the substrate 20 has a central portion 21 and an edge portion 22 , the edge portion 22 is disposed on the outer periphery of the central portion 21 , and the cross-sectional shapes of the central portion 21 and the edge portion 22 are arc-shaped.

[0024] The micro-nano ceramic layer 30 is defined here as a ceramic material in the form of micro-nano crystals with at least one dimension smaller than 500 microns in zero-dimensional, one-dimensional, two-dimensional or three-dimensional (corresponding to points, lines, planes, and three-dimensional) scales It is made, and the micronano referred to here refers to the nanometer s...

Embodiment 2

[0025] Embodiment two: see attached figure 2 As shown, the present embodiment is basically the same as the first embodiment, except that the number of micro-nano ceramic layers 30 is two layers and is arranged on the upper and lower surfaces of the central portion 21 .

Embodiment 3

[0026] Embodiment three: see attached figure 2 As shown, this embodiment is basically the same as the first embodiment, except that the micro-nano ceramic layer 30 is disposed on the upper surface of the edge portion 22 .

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Abstract

A composite vibration film comprises a base material. The surface of the base material is coated with a micro-nano ceramic layer. The micro-nano ceramic layer is a structural material enabling the rigidity and the tenacity to be greatly increased at the high temperature so that the prepared composite vibration film can have the advantages of being high in rigidity and tenacity, good in malleability and the like, the composite vibration film can allow great elastic deformation at the room temperature, and the purpose of high-definition tone quality can be achieved.

Description

technical field [0001] The invention relates to the field of loudspeakers, in particular to a composite diaphragm. Background technique [0002] With the popularization and progress of digital media, digital music is constantly developing towards high-fidelity (Hi-Fi), which also drives the development of various professional speakers. In order to pursue superior audio output characteristics, the diaphragm of the speaker is one of the most critical parts. [0003] However, under the premise of the same size and shape, the diaphragm must have sufficient hardness and toughness to withstand severe repeated movements, so as to avoid inelastic deformation or even rupture. In order to solve the above problems, the current traditional method is to Engineering ceramics are arranged on the surface of the diaphragm to form a so-called ceramic diaphragm to improve the mechanical properties of the diaphragm itself, but the high brittleness of engineering ceramics will limit the ductili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/04H04R9/02
Inventor 林晴岚杨宸贸陈柏昱谢易霖
Owner MERRY ELECTRONICS (SUZHOU) CO LTD
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