| 摘要 |
PROBLEM TO BE SOLVED: To improve the intensity of an insulating board without changing the height of a product, and to raise reflow thermal resistance in a chip type aluminum electrolytic capacitor. SOLUTION: A chip type aluminum electrolytic capacitor is constituted of: a capacitor body formed by a capacitor element 1 in which a drawing lead line 3 for drawing an electrode is connected to positive electrode foil and negative electrode foil in which a chemical film is formed on aluminum foil and the positive and negative electrode foil is wound via a separator, a bottomed cylindrical metal housing container 2 for housing the capacitor element 1 impregnated with electrolyte, and an elastic sealing material 4 with which an open end of the housing container 2 is sealed and which has an insertion hole in which the drawing lead line 3 connected to the capacitor element 1 is inserted; and an insulating board 5 which is formed of resin and which has an insertion hole in which the drawing lead line 3 is inserted and a terminal groove in which the drawing lead line is housed. In the capacitor, a protrusion 5e is formed on a side facing the capacitor body sealing portion side of the insulating board 5 in such a manner that a gap space is formed between the protrusion and the lower end surface of the sealing material 4 in the sealing region. COPYRIGHT: (C)2008,JPO&INPIT
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