Capacitor

Abstract

This capacitor has: a single capacitor block (14) provided with a plurality of capacitor elements (12) electrically connected in parallel, each of said capacitor elements (12) having a terminal part (18a, 18b) on each end; a first electrode plate (20a) that electrically connects the first terminal parts (18a) of the capacitor elements (12); a second electrode plate (20b) that electrically connects the second terminal parts (18b) of the capacitor elements (12) and continues on to the side where the first terminal parts (18a) are; and at least one bypass electrode plate (22) that electrically bypasses the second electrode plate (20b).

Description

technical field [0001] The present invention relates to a capacitor using a capacitor block composed of a plurality of capacitor elements electrically connected in parallel with each other. Background technique [0002] Generally, a capacitor having a large capacitance exceeding 100 μF employs a capacitor block, and in order to provide the required electrostatic capacitance, by preparing a plurality of capacitor elements each having a capacitance of less than 100 μF or about 100 μF and using a connector such as a flat-strand copper wire or the like Capacitor elements are connected in parallel to each other to produce a capacitor block. Some capacitors have a plurality of such capacitor blocks connected in parallel with each other. [0003] When such a capacitor is used as a smoothing capacitor in a power converter such as an inverter or the like, a pulsating current having a carrier frequency or the like from the inverter flows through the capacitor. At this time, the capa...

AI Technical Summary

Problems solved by technology

At this time, the capacitor element and the connector self-heat and tend to shorten their service life

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