Speaker diaphragm and speaker
US11962986B2 · kind B2 · utility
1Cited by
0References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2018 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Jul 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/025
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present disclosure provides a speaker diaphragm and a speaker. The diaphragm includes a thermoplastic polyester elastomer film layer, a thermoplastic polyester elastomer being a copolymer composed of a hard segment A of polyester and a soft segment B of polyether or aliphatic polyester, wherein the thermoplastic polyester elastomer film layer has Young's modulus of 1-1000 MPa, with an elastic recovery rate after 10% strain being greater than or equal to 80%. The speaker diaphragm has a good stiffness, a good damping performance and a good resilience.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.