- 专利标题: LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS
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申请号: EP23207858.4申请日: 2023-11-06
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公开(公告)号: EP4364953A1公开(公告)日: 2024-05-08
- 发明人: SHIOZAWA, Yu , TAKABE, Motoki , TAKAAI, Hitoshi
- 申请人: Seiko Epson Corporation
- 申请人地址: JP Tokyo 160-8801 1-6, Shinjuku 4-chome, Shinjuku-ku,
- 专利权人: Seiko Epson Corporation
- 当前专利权人: Seiko Epson Corporation
- 当前专利权人地址: JP Tokyo 160-8801 1-6, Shinjuku 4-chome, Shinjuku-ku,
- 代理机构: Lewis Silkin LLP
- 优先权: JP 2022177893 2022.11.07
- 主分类号: B41J2/14
- IPC分类号: B41J2/14
摘要:
A liquid ejecting head includes: a nozzle; a piezoelectric material configured to be driven by a voltage applied to the piezoelectric material; an upper electrode located over the piezoelectric material and electrically coupled to the piezoelectric material; a lower electrode located under the piezoelectric material and electrically coupled to the piezoelectric material; upper-electrode wiring located over the upper electrode and configured to electrically couple the upper electrode to an external power supply; lower-electrode wiring configured to electrically couple the lower electrode to the external power supply; a vibration plate located under the lower electrode and configured to vibrate when the piezoelectric material is driven; and a pressure chamber substrate having a pressure chamber in which vibration of the vibration plate applies pressure to liquid to eject liquid through the nozzle and a first absorption chamber configured to absorb vibration of liquid propagated from the pressure chamber, and the upper electrode and the upper-electrode wiring are present over the first absorption chamber.
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