Speaker diaphragm and speaker
US11457316B2 · kind B2 · utility
1Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2018 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Oct 13, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/204
- 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 (11), a thermoplastic polyester elastomer being a copolymer composed of a polyester hard segment A and a polyether or aliphatic polyester soft segment B, wherein a mass percentage of the polyester hard segment A is 10-95%. The speaker diaphragm features high structural strength, is not easy to be damaged, and has good toughness and resilience and a good sound generation effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.