JP2013030577A5

JP2013030577A5 -

Info

Publication number: JP2013030577A5
Application number: JP2011164972A
Authority: JP
Filing date: 2011-07-28
Publication date: 2014-09-11
Anticipated expiration: 2031-07-28

Description

本発明のケースモールド型コンデンサは、金属化フィルムを巻回又は積層し両端面に外部電極が設けられた複数のコンデンサ素子と、このコンデンサ素子の外部電極に接続され、外部と電気的に接続するための端子部が設けられたバスバーとをケース内に収納し、バスバーの端子部を除いて樹脂モールドしたケースモールド型コンデンサにおいて、バスバーと、このバスバーに近接し対面するコンデンサ素子との間に導電体を設けたものである。 The case mold type capacitor of the present invention has a plurality of capacitor elements wound and laminated with a metallized film and provided with external electrodes on both end faces, and is connected to the external electrodes of the capacitor elements and is electrically connected to the outside. In a case mold type capacitor in which a bus bar provided with a terminal portion for housing is housed in a case and resin-molded except for the terminal portion of the bus bar, electrical conduction is provided between the bus bar and a capacitor element that is close to and faces the bus bar. It is a body .

Claims

A plurality of capacitor elements wound or laminated with metallized films and provided with external electrodes on both end faces;
In a case mold type capacitor in which a bus bar connected to an external electrode of this capacitor element and provided with a terminal portion for electrical connection to the outside is accommodated in a case and resin-molded except for the terminal portion of the bus bar. ,
A case mold type capacitor characterized in that a conductor is provided between the bus bar and a capacitor element facing and facing the bus bar.

2. The conductor is provided between the bus bar and the capacitor element having the largest current value flowing through the bus bar in a portion facing the capacitor element among the plurality of capacitor elements. The case mold type capacitor described in 1.

The conductor is provided between a capacitor element facing the position where the distance from the terminal portion provided on the bus bar is the shortest among the plurality of capacitor elements, and the bus bar. The case mold type capacitor according to claim 1.

The conductors, case mold type capacitor according to claim 1, characterized in that is in contact in a state with the bus bar, the electrical manner insulated.

The laminated body having the conductor and the insulator faces the bus bar and is adjacent to the bus bar.
Disposed between the capacitor element that, at least, a case-molded capacitor according to claim 1, wherein an insulating body is provided on the bus bar and the opposite sides of the laminate.

The case mold type capacitor according to claim 1 , wherein the conductor is copper.

2. The case mold type capacitor according to claim 1 , wherein the conductor is aluminum.

2. The case mold type capacitor according to claim 1 , wherein the conductor is a graphite sheet.

The case mold type capacitor according to claim 8, wherein the thermal conductivity in the surface direction of the graphite sheet is larger than the thermal conductivity in the thickness direction.

The case mold type capacitor according to claim 1 , wherein a graphite sheet having a thermal conductivity in a plane direction larger than a thermal conductivity in a thickness direction is attached to the conductor.

2. The case mold type capacitor according to claim 1, wherein a distance between a surface of the conductor and a side surface of the capacitor element facing the surface of the conductor is 5 mm or more and 12 mm or less.

The case mold type capacitor according to claim 1, wherein a distance between the surface of the conductor and the surface of the bus bar facing the surface of the conductor is 2 mm or more.