LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE DEVICE

• Main Authors: HIRAI EIKI, TAMAI SHOTARO, FUKUZAWA YUMA, TAKAAI HITOSHI, NAGANUMA YOICHI
• Format: Patent
• Language: English; Japanese
• Published: 09.12.2021
• 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

To provide a liquid discharge head that can suppress occurrence of a crack on a wall surface of a nozzle passage due to loads at the time of connecting wiring substrates, and a liquid discharge device.SOLUTION: A liquid discharge head 1 comprises: a pressure chamber CB1; a piezoelectric element PZ1 that generates energy for applying pressure to ink in the pressure chamber CB1; a nozzle passage RN extending in an X-axis direction and communicating with a nozzle N that discharges ink; a communication passage, communicating the pressure chamber CB1 with the nozzle passage RN, through which ink is supplied to the ink passage RN; a communication passage, communicated with the nozzle passage RN, through which ink is ejected from the nozzle passage RN; a wiring substrate 8 electrically connected to a driving circuit that drives the piezoelectric element PZ1; and a wiring part W1 that electrically connects the wiring substrate 8 to the piezoelectric element PZ1. The wiring part W1 is provided at a position at which the part overlaps with the nozzle passage RN, when viewed in a Z-axis direction orthogonal to the X-axis direction and extends in a ± Q direction different from the X-axis direction.SELECTED DRAWING: Figure 6 【課題】配線基板を接続する際の荷重によるノズル流路の壁面におけるクラックの発生を抑制することが可能な液体吐出ヘッドおよび液体吐出装置を提供する。【解決手段】液体吐出ヘッド１は、圧力室ＣＢ１と、圧力室ＣＢ１内のインクに圧力を付与するためのエネルギーを生成する圧電素子ＰＺ１と、Ｘ軸方向に延在し、インクを吐出するノズルＮと連通するノズル流路ＲＮと、圧力室ＣＢ１とノズル流路ＲＮとを連通し、ノズル流路ＲＮにインクを供給するための連通流路と、ノズル流路ＲＮと連通し、ノズル流路ＲＮからインクを排出するための連通流路と、圧電素子ＰＺ１を駆動する駆動回路に電気的に接続された配線基板８と、配線基板８と圧電素子ＰＺ１とを電気的に接続する配線部Ｗ１と、を有し、配線部Ｗ１は、Ｘ軸方向と直交するＺ軸方向に見たとき、ノズル流路ＲＮと重なる位置に設けられ、Ｘ軸方向と異なる±Ｑ方向に延在する。【選択図】図６