| 摘要 |
PURPOSE:To attain automatic insertion while eliminating any lead by inserting a rectangular piezoelectric element to a cylinder where grooves are formed at the opposed position on the inner peripheral face and connecting the element to a conductive cap so as to attain small size. CONSTITUTION:The grooves 9, 10 are formed along the lengthwise direction to the opposed position of the inner peripheral face of the insulating ceramic or plastic made cylinder 8 and the width of the grooves 9, 10 is made wider than the thickness of the rectangular piezoelectric element 1. The element 1 is inserted along the grooves 9, 10, the metallic caps 11, 12 are pressed and inserted to both ends of the cylinder 8 so as to connect respectively an electrode 2a of the element 1 and the cap 11, and the electrode 2b and the cap 12. |
