| 摘要 |
PURPOSE:To easily arrange electrode plates and metal plates at the time of lamination by using the metal plates having tabs bent in thicknesswise direction continuously to the flat plate part having the same shape as a piezoelectric plate, so interposing them between sintered piezoelectric plates that the tab leading positions of anode and cathode are different to laminate many layers to be bonded, and sequentially electrically connecting the tabs of the same polarity to be superposed. CONSTITUTION:A metal plate 22 has a flat plate part 24 of substantially the same shape as a piezoelectric plate 10, and a tab 26 bent in the thicknesswise direction continuously to the plate 24. When the thickness of the plate 10 is 0.5mm, the tab 26 of the plate 22 may have 1-3mm of width and approx. 3mm of length in a structure that is substantially perpendicularly bent at a point separated at approx. 1mm from the outer edge of the plate 10. In this case the tab leading positions of anodes and cathodes are disposed at symmetrical positions with respect to a central axis different at approx. 180 deg., many layers are laminated by alternately varying the tab leading positions, and integrally bonded by a conductive adhesive interposed therebetween in advance. |
