(19)
(11) EP 3 858 497 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 2 (W2 A1)

(48) Corrigendum issued on:
31.08.2022 Bulletin 2022/35

(43) Date of publication:
04.08.2021 Bulletin 2021/31

(21) Application number: 19867928.4

(22) Date of filing: 26.09.2019
(51) International Patent Classification (IPC): 
B06B 1/02(2006.01)
H01L 41/09(2006.01)
H04R 17/00(2006.01)
 H01L 41/04(2006.01)
H01L 41/193(2006.01)
(52) Cooperative Patent Classification (CPC):
H01L 41/193; H01L 41/09; B06B 1/0223; B06B 2201/50; B06B 2201/70; B06B 1/0292; H04R 17/00
(86) International application number:
PCT/JP2019/037785
(87) International publication number:
WO 2020/067252 (02.04.2020 Gazette 2020/14)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 27.09.2018 JP 2018181924

(71) Applicants:
  • Zeon Corporation
    Tokyo 100-8246 (JP)
  • Chiba, Seiki
    Tokyo 152-0023 (JP)
  • Waki, Mikio
    Sakura-shi, Tochigi 329-1334 (JP)

(72) Inventors:
  • CHIBA, Seiki
    Tokyo 152-0023 (JP)
  • WAKI, Mikio
    Sakura-shi, Tochigi 329-1334 (JP)
  • ITO, Mitsuaki
    Ageo-shi, Saitama 362-8561 (JP)
  • SAWADA, Makoto
    Ageo-shi, Saitama 362-8561 (JP)

(74) Representative: Schäflein, Christian Georg 
Maiwald Patentanwalts- und Rechtsanwaltsgesellschaft mbH Elisenhof Elisenstraße 3
80335 München
80335 München (DE)


(56) References cited: : 
   
       


    (54) DIELECTRIC ELASTOMER VIBRATION SYSTEM AND POWER SUPPLY DEVICE


    (57) A dielectric elastomer vibration system A1 includes: a dielectric elastomer vibrator 1 including a dielectric elastomer layer 11 and a pair of electrode layers 12; and a power supply device 2 that produces a potential difference across the pair of electrode layers 12. The dielectric elastomer vibrator 1 exhibits a relationship between the potential difference across the pair of electrode layers 12 and an amount of deformation induced by the potential difference, the relationship having: a high-response region S1 in which a relatively large deformation is induced in response to change of the potential difference; a low-response region of lower-potential difference S2 corresponding to a lower potential difference than the high-response region S1 and in which a relatively small deformation is induced in response to change of the potential difference; and a low-response region of higher-potential difference S3 corresponding to a higher potential difference than the high-response region S1 and in which a relatively small deformation is induced in response to change of the potential difference or in which a break point of the dielectric elastomer layer 11 is included. The power supply device 2 produces the potential difference by applying a vibration signal voltage V across the pair of electrode layers 12. The vibration signal voltage V is generated by combining a waveform voltage V1 that is an alternating current voltage with a bias voltage V2 that is a direct current voltage corresponding to a potential difference falling in the high-response region S1. This configuration ensures the system to vibrate more appropriately.