AIRTIGHT TERMINAL AND ELECTRONIC COMPONENT USING THE SAME

• Main Authors: MORIKAWA TETSUSHI, OKUNO AKIRA, KOMODA KOICHI
• Format: Patent
• Language: English
• Published: 16.06.2000
• Edition: 7
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

PROBLEM TO BE SOLVED: To obtain a terminal to enable further miniaturization by forming a metallic outer ring of an airtight terminal to seal a reed with the metallic outer ring via insulation into a flat shape and sealing the reed at a position eccentric from a center line in the longitudinal direction of the metallic outer circle. SOLUTION: The metallic outer ring 1 has an elliptic shape as one example of flat shape, is constituted of a low carbon steel or an alloy of iron, nickel, cobalt, etc., and has a curved surface on an upper mold part and an inclined flat surface on the inside at the lower end. The reeds 3, 4 are constituted of and an alloy of iron nickel, an alloy of iron, nickel and cobalt alloy, etc., and are glass Each of the reeds 3, 4 is sealed at a position eccentric by the dimension 11 from the center line 5 in the longitudinal direction of the metallic outer circle. In addition, since the inclined flat surface is provided of the lower end of the metallic outer ring, wetting of the molten glass is stopped at the upper end of the inclined flat surface when the molten glass 2 is wetted along the inner surface of the metallic outer ring 1 to be sealed.