• 专利标题:   Diaphragm of sounding device, comprises at least one modified acrylate rubber film layer prepared by mixing inorganic hollow microspheres, additives and acrylate polymers to form mixed rubber performing crosslinking reaction, and immersing modified acrylate rubber film layer in oily solvent.
  • 专利号:   CN116074701-A
  • 发明人:   ZHANG C, LIU C, LING F, LI C, HUI B, MA C
  • 专利权人:   GOERTEK INC
  • 国际专利分类:   H04R031/00, H04R007/04, H04R007/06, H04R009/02, H04R009/06
  • 专利详细信息:   CN116074701-A 05 May 2023 H04R-007/04 202349 Chinese
  • 申请详细信息:   CN116074701-A CN11273408 29 Oct 2021
  • 优先权号:   CN11273408

▎ 摘  要

NOVELTY - Diaphragm of sounding device, comprises at least one modified acrylate rubber film layer prepared by mixing inorganic hollow microspheres, additives and acrylate polymers to form a mixed rubber and performing a crosslinking reaction, where the particle size of the inorganic hollow microspheres is 1-60 μm, and the distribution density of the inorganic hollow microspheres in the modified acrylate rubber film layer is 0.15-0.9 g/cm3, and immersing the modified acrylate rubber film layer in an oily solvent at 150℃ for 70 hours, where the breaking strength reduction ratio of the modified acrylate rubber film layer is ≤30%, and the swelling ratio is ≤20%. USE - Diaphragm of sounding device. ADVANTAGE - The diaphragm reduces the density of the vibrating diaphragm material, improves the intermediate frequency sensitivity of the sounding device, and has excellent solvent-resistant swelling performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a sounding device. DESCRIPTION OF DRAWING(S) - The drawing a whole structure schematic diagram of the sounding device. 100Sound-producing device