Panasonic Corporation

Komatsu Corporation

Tooru Ninomiya

Kazuki Morita

Tatehiko Inoue

Shusaku Kawasaki

Toshiyuki Kitagawa

Susumu Nishimoto

Akihiko Souda

A plurality of electrical storage elements () are electrically connected to each other, and parts of the peripheral surfaces of the electrical storage elements () contained in concave surfaces () are joined to the concave surfaces () with double-sided adhesive tape (), so that the electrical storage elements () can be firmly fixed to a holder (), and heat can be efficiently transferred from the electrical storage elements () to the holder () through the double-sided adhesive tape ().

Electrical storage unit

A capacitor body is laterally contained in a lower holder, to be then pressed by an upper holder. A lead wire is led from the capacitor body in an axial direction, and then, bent toward a wiring board, thereby forming a leg soldered to the wiring board. The lower holder includes a first holding portion extending outward and having a supporter disposed in a stationary state whereas the upper holder includes a second holding portion extending outward and having a bridge stretched between a pair of elastically deformable arms. The first and second holding portions are urged toward the capacitor body, and therefore, axially hold a part of the leg of the lead wire. This configuration can prevent any breakage of a soldered portion of the lead wire due to vibrations so as to enhance vibration resistance.

Capacitor module

According to the configuration and the manufacturing method of forming a moisture proof agent on both surfaces of a circuit substrate after soldering a capacitor connection pin in a vertical direction to the circuit substrate, and electrically connecting the capacitor so as to be in a perpendicular direction to the length direction of the capacitor connection pin at the upper space of the circuit substrate, the possibility of the moisture proof agent attaching to the capacitor is eliminated, the productivity enhances since the moisture proof agent can be easily formed on both surfaces of the circuit substrate, and a capacitor unit of miniaturized and low height configuration is realized since the capacitor is mounted in the horizontal direction in the upper space with respect to the circuit substrate.

Capacitor unit, and its manufacturing method

Growing community of inventors

Osaka, Japan

Tooru Ninomiya