LIQUID JET HEAD, AND LIQUID JET DEVICE

• Main Authors: TAKIMOTO ISAO, HAGIWARA HIROYUKI, TODOROKI HIDEKAZU, MURAKAMI KENTARO, SHIMOSAKA TAKAYUKI, KINOSHITA TOMOO, HAKETA KAZUE, YAMAZAKI TOSHINOBU
• Format: Patent
• Language: English; Japanese
• Published: 19.05.2016
• Subjects: CORRECTION OF TYPOGRAPHICAL ERRORS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

PROBLEM TO BE SOLVED: To suppress stress caused by contraction of a filler for covering wiring of a wiring board.SOLUTION: A liquid jet head 30 includes: a diaphragm 36 on which a piezoelectric element 38 for jetting ink is arranged; a sealing plate 44 which is arranged on an arrangement surface 362 of the diaphragm 36 and covers the piezoelectric element 38; a wiring board 50 which has a first surface 521 with wiring 54 for supplying a drive signal to the piezoelectric element 38 formed and a second surface 522 opposite to the first surface 521, and in which the first surface 521 of a first end part 52A is bonded to the arrangement surface 362 of the diaphragm 36; and a filler 60 which is formed at least between a wall surface 446 of the sealing plate 44 and the first surface 521 and covers the wiring 54. A height of the filler 60 to the arrangement surface 362 is higher on a first surface 521 side as compared with a second surface 522 side.SELECTED DRAWING: Figure 5 【課題】配線基板の配線を覆う充填材の収縮に起因した応力を抑制する。【解決手段】液体噴射ヘッド３０は、インクを噴射するための圧電素子３８が設置された振動板３６と、振動板３６の設置面３６２に設置されて圧電素子３８を覆う封止板４４と、圧電素子３８に駆動信号を供給する配線５４が形成された第１面５２１と第１面５２１の反対側の第２面５２２とを含み、第１端部５２Aの第１面５２１が振動板３６の設置面３６２に接合された配線基板５０と、封止板４４の壁面４４６と第１面５２１との間に少なくとも形成されて配線５４を覆う充填材６０とを具備し、設置面３６２に対する充填材６０の高さは、第２面５２２側と比較して第１面５２１側のほうが高い。【選択図】図５