Multi-layer piezoelectric transformer mounting device

A laminated multi-layer piezoelectric transformer comprising:

• a first ceramic wafer having opposing major faces which are disposed on the opposite sides of a first longitudinal axis;
• a second ceramic wafer having two opposing major faces which are disposed on the opposite sides of a second longitudinal axis;
• wherein an electrode is bonded to each of said two opposing faces of said first ceramic wafer;
• and wherein an electrode is bonded to each of said two opposing faces of said second ceramic wafer;
• said first ceramic wafer being polarized in a thickness direction between said two opposing major faces of said first ceramic wafer such that said first ceramic wafer strains longitudinally when a voltage is applied across said two opposing major faces of said first ceramic wafer;
• said second ceramic wafer being polarized in a thickness direction between said two opposing major faces of said second ceramic wafer such that said second ceramic wafer strains longitudinally when a voltage is applied across said two opposing faces of said second ceramic wafer, said second ceramic wafer being polarized in a direction substantially parallel to said first ceramic wafer;
• wherein said first ceramic wafer having an electrode bonded to each of its two major opposing faces is mechanically bonded to said second ceramic wafer having an electrode bonded to each of its major opposing faces at a joint;
• wherein said mechanical bonding is accomplished using a conductive adhesive;
• a bead of said conductive adhesive about the periphery of said laminated multi-layer piezoelectric transformer at said joint.

In combination;

• a laminated multi-layer piezoelectric transformer comprising:
• a first ceramic wafer having opposing major faces which are disposed on the opposite sides of a first longitudinal axis;
• a second ceramic wafer having two opposing major faces which are disposed on the opposite sides of a second longitudinal axis;
• wherein an electrode is bonded to each of said two opposing faces of said first ceramic wafer;
• and wherein an electrode is bonded to each of said two opposing faces of said second ceramic wafer;
• said first ceramic wafer being polarized in a thickness direction between said two opposing major faces of said first ceramic wafer such that said first ceramic wafer strains longitudinally when a voltage is applied across said two opposing major faces of said first ceramic wafer;
• said second ceramic wafer being polarized in a thickness direction between said two opposing major faces of said second ceramic wafer such that said second ceramic wafer strains longitudinally when a voltage is applied across said two opposing faces of said second ceramic wafer, said second ceramic wafer being polarized in a direction substantially parallel to said first ceramic wafer;
• wherein said first ceramic wafer having an electrode bonded to each of its two major opposing faces is mechanically bonded to said second ceramic wafer having an electrode bonded to each of its major opposing faces at a joint;
• wherein said mechanical bonding is accomplished using a conductive adhesive;
• a bead of said conductive adhesive about the periphery of said laminated multi-layer piezoelectric transformer at said joint;
• and
• wherein said laminated multi-layer piezoelectric transformer has top and bottom surfaces on opposing major sides thereof;
• and
• a mounting device comprising:
• adjacent one of said top or bottom surfaces, a conductive base having a first contact which contacts one of said top and bottom surfaces, and curvaceous arms having distal ends and extending at generally right angles from said conductive base about said laminated multi-layer piezoelectric transformer, a portion of said arms contacting said bead;
• an insulating cap mounted adjacent the other of said top or bottom surfaces, said insulating cap having a second contact which contacts the other of said top and bottom surfaces, and arms extending from said insulating cap, and having distal ends designed to engage said distal ends of said curvaceous arms so as to clamp said laminated multi-layer piezoelectric transformer between said conductive base and said insulating cap.