Kopfeinheit und Flüssigkeitsausstossvorrichtung

Details

Veröffentlichungs-Nr.

EP3597435

Aktenzeichen

EP19186199

Anmeldetag

15. Juli 2019

Veröffentlichung

11. August 2021

Erteilung

11. August 2021

Rechtsraum

EP

IPC

B41J2/14

Abstract

A head unit has: a first member in which a pressure chamber that stores a liquid to be discharged from a nozzle is formed; a piezoelectric element disposed on the first member and configured to deform in response to a driving signal; a first substrate disposed on the first member so as to cover the piezoelectric element; an integrated circuit disposed on the first substrate, the integrated circuit supplying the driving signal to the piezoelectric element; a second member disposed on the first member, a holding chamber being formed in the second member, the liquid being held in the holding chamber; and a third member formed from a metal, the third member being disposed on the second member. In the second member, a heat dissipation opening for dissipating heat generated in the integrated circuit is formed between the integrated circuit and the third member.

Anmelder

Firma

Seiko Epson Corporation

Land

🇯🇵 Japan

Fachgebiete