Composite vibrating diaphragm of sound production device and sound production device
A technology of sound-emitting device and rubber layer, which is applied in the direction of diaphragm structure, synthetic resin layered products, chemical instruments and methods, etc., to achieve the effect of satisfying the degree of tolerance and meeting the needs of experience.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0056] In a second aspect, a method for preparing a composite diaphragm of a sounding device is provided, comprising the following steps:
[0057] A rubber layer is provided, wherein the rubber layer is prepared as follows: a film body is made by a film forming process, and the film body is dried at a low temperature to form an uncrosslinked rubber layer or a semi-crosslinked rubber layer;
[0058] Laminating the rubber layer and the thermoplastic elastomer layer to form a composite film;
[0059] A vibrating film is formed by forming the composite film.
[0060] In the examples of the present application, a low-temperature drying method is adopted in the drying process of the rubber layer, so that chemical cross-linking or semi-chemical cross-linking is not generated; then the rubber layer is laminated with the thermoplastic elastomer layer to form a composite film, and the composite film is in During the diaphragm forming process, chemical cross-linking occurs and sets the ...
Example Embodiment
[0066] Example 1
[0067] like figure 1 As shown, a composite diaphragm of a sounding device is composed of a layer of thermoplastic elastomer layer 101 and a layer of rubber layer 102, and the rubber layer 102 is made of ethylene-vinyl acetate rubber; The thickness is 30 μm.
[0068] The ethylene-vinyl acetate rubber is formed by copolymerizing ethylene and vinyl acetate, and the content of the vinyl acetate is 40% of the total amount of the ethylene-vinyl acetate rubber.
[0069] The hardness of the rubber layer 102 is 30A; the loss factor of the rubber layer 102 is greater than 0.05 at room temperature.
[0070] The thickness of the thermoplastic elastomer layer 101 is 15 μm; the material of the thermoplastic elastomer layer 101 is selected from TPEE (polyester elastomer).
Example Embodiment
[0071] Example 2
[0072] like figure 2 As shown, a composite diaphragm of a sounding device includes a first thermoplastic elastomer layer 201, a rubber layer 202 and a second thermoplastic elastomer layer 203 that are stacked in sequence, and the rubber layer 202 is made of ethylene-vinyl acetate rubber ; The thickness of the rubber layer 202 is 15 μm.
[0073] The ethylene-vinyl acetate rubber is formed by copolymerizing ethylene and vinyl acetate, and the content of the vinyl acetate is 60% of the total amount of the ethylene-vinyl acetate rubber.
[0074] The hardness of the rubber layer 202 is 65A; the loss factor of the rubber layer 202 is greater than 0.1 at room temperature.
[0075] The thickness of the first thermoplastic elastomer layer 201 is 15 μm; the material of the first thermoplastic elastomer layer 201 is selected from TPEE (polyester elastomer).
[0076] The thickness of the second thermoplastic elastomer layer 203 is 15 μm; the material of the second t...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Thickness | aaaaa | aaaaa |
Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap