Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Vibrating diaphragm and preparation method and application thereof

A base and solvent technology, applied in the direction of metal material diaphragm, ceramic material diaphragm, diaphragm structure, etc., can solve the problem of complex preparation process, achieve the effect of clear and thorough sound quality, convenient processing and excellent damping performance

Pending Publication Date: 2021-08-13
GUOGUANG ELECTRIC
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disclosed diaphragm preparation method is to mix reinforcing materials such as zirconia or titanium dioxide with hot melt adhesive and then heat and solidify. The preparation process is relatively complicated.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vibrating diaphragm and preparation method and application thereof
  • Vibrating diaphragm and preparation method and application thereof
  • Vibrating diaphragm and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] This embodiment provides a diaphragm, such as figure 1 As shown, the diaphragm includes a base layer 1 (aluminum sheet) and a first ceramic layer 21 (titanium oxide, with a thickness of 5 μm) and a second ceramic layer 22 (titanium oxide, with a thickness of 5 μm) disposed on both sides of the base layer. , the thickness of the diaphragm is 45 μm.

[0062] The preparation method of the above-mentioned diaphragm comprises the following steps:

[0063] (1) Punch the base layer with a thickness of 35 μm into a spherical top shape on the mold, and perform the following pretreatments in sequence: alkali washing and degreasing for 10 minutes, first washing with water, ultrasonication in ethanol for 10 minutes, and second washing with water , dry at 50°C;

[0064] (2) Preparation of precursor solvent A: 30 parts by weight of ceramic layer preparation raw material (tetrabutyl titanate), 20 parts by weight of the first solvent (10 parts of diethanolamine, 10 parts of acetone) ...

Embodiment 2

[0069] This embodiment provides a vibrating membrane, the vibrating membrane includes a base layer (aluminum sheet) and metal oxide (alumina) ceramic layers arranged on both sides of the base layer, the thickness of the vibrating membrane is 45 μm, and the two The thickness of the metal oxide ceramic layers on both sides is 5 μm.

[0070] The preparation method of the above-mentioned diaphragm comprises the following steps:

[0071] (1) Punch the base layer with a thickness of 35 μm into a dome shape on the mold, and perform the following pretreatments in sequence: alkaline washing and degreasing for 15 minutes, first washing with water, ultrasonication in ethanol for 15 minutes, and second washing with water , dry at 50°C;

[0072] (2) Preparation of precursor solvent A: 60 parts by weight of ceramic layer preparation raw materials (aluminum chloride hexahydrate and aluminum nitrate nonahydrate in a mass ratio of 1:1), 20 parts by weight of the first solvent (a mass ratio of...

Embodiment 3

[0077] This embodiment provides a diaphragm, such as figure 2 As shown, the diaphragm includes a third ceramic layer 31 (titanium oxide, with a thickness of 2.5 μm), a first ceramic layer 21 (aluminum oxide, with a thickness of 1.5 μm), and a base layer 1 (aluminum alloy, purchased from Shuangzhixin Electroacoustic Technology Co., Ltd.), the second ceramic layer 22 (aluminum oxide, with a thickness of 2 μm) and the fourth ceramic layer 32 (titanium oxide, with a thickness of 2 μm), and the thickness of the diaphragm is 48 μm.

[0078] The preparation method of the above-mentioned diaphragm comprises the following steps:

[0079] (1) Punch the base layer with a thickness of 40 μm into a spherical top shape on the mold, and perform the following pretreatments in sequence: alkali washing and degreasing for 12 minutes, first washing with water, ultrasonication in ethanol for 13 minutes, and second washing with water , dry at 50°C;

[0080] (2) Preparation of precursor solvent A...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a vibrating diaphragm and a preparation method and application thereof. The vibrating diaphragm comprises a base layer and metal oxide ceramic layers arranged on the two sides of the base layer. The thickness of the vibrating diaphragm is 45 to 55 [mu]m; and the thicknesses of the metal oxide ceramic layers on the two sides are both 5-10 microns. The vibrating diaphragm is not provided with an adhesive layer, additional anti-corrosion surface treatment is not needed, the technological process of the vibrating diaphragm is reduced, the product yield is increased, and the vibrating diaphragm is more resistant to environmental corrosion and better in damping performance.

Description

technical field [0001] The invention relates to the field of diaphragm technology, in particular to a diaphragm and its preparation method and application. Background technique [0002] The diaphragm is one of the main parts of the speaker. The main structure of the existing ceramic diaphragm is three parts: ceramic layer, adhesive layer or substrate layer. [0003] CN202679596U discloses a kind of middle and high-pitched loudspeaker ceramic vibrating membrane structure, belongs to the sound class, and described ceramic vibrating membrane comprises plural ceramic powder layers and plural and these ceramic powder layers are mixed to form the raw material layer of bonding layer, again this bonding layer and plural The glue layer is mixed to form an extremely thin ceramic base layer, and the ceramic base layer is formed by compression molding so that the ceramic base layer forms a semicircular arc-shaped vibrating film, so that the physical characteristics of the hard and thinn...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/02H04R31/00
CPCH04R7/02H04R31/003H04R2307/023H04R2307/027
Inventor 刘雪键谢守华黄汉雄王世伟
Owner GUOGUANG ELECTRIC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com