ELECTRONIC COMPONENT

• Main Authors: YONEDA MITSURU, OSHITA KENICHI, SAKAI TAKAYA
• Format: Patent
• Language: English; Japanese
• Published: 25.11.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY

To suppress the leakage of an electrolyte and the reduction in the airtightness due to the rise of the internal pressure in an electrolytic capacitor.SOLUTION: An electronic component comprises: a capacitor element in which a lead is connected to each of anode foil and cathode foil and the anode foil and the cathode foil are wound via a separator; a bottomed cylindrical storage container which stores the capacitor element; and an elastic sealing body which seals the opening end of the storage container. The elastic sealing body comprises: a through hole which penetrates between the inner surface facing the internal space of the storage container and the outer surface being in the front-back relation with respect to the inner surface and to which the lead drawn out from the capacitor element is inserted; and an inclined surface which is formed on the inner surface and on which the thickness of the elastic sealing body becomes thicker as heading toward the central section of the inner surface. The through hole is provided on the inclined surface.SELECTED DRAWING: Figure 1 【課題】電解コンデンサにおいて内圧上昇による電解液の漏出や気密性の低下を抑制する。【解決手段】陽極箔および陰極箔の各々にリードが接続され、陽極箔および陰極箔がセパレータを介して巻回されてなるコンデンサ素子と、内部にコンデンサ素子を収納した有底筒状の収納容器と、収納容器の開口端を封口する弾性封口体とを備え、弾性封口体は、収納容器の内部空間に面する内面と内面に対して表裏の関係にある外面との間を貫通し、コンデンサ素子から引出されたリードを挿通する貫通孔と、内面に形成され、内面の中央部に向かって弾性封口体の厚みが厚くなる傾斜面とを有し、貫通孔は、傾斜面に設けられている構成とする。【選択図】図１