Capacitor Module Same-Polarity Terminal Arrangement

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Solution Overview

Problem

Existing capacitor modules face challenges in miniaturization and increased package density due to the need for electrical insulation between capacitors, leading to a complex structure and reduced freedom in wiring arrangement.

Innovation Solution

The capacitors are arranged with adjacent terminals of the same polarity, eliminating the need for electrical insulation between wirings, allowing for a more compact design with upright electrode terminals and orthogonal capacitor placement, and connecting same-polarity terminals to a common wiring portion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If capacitors are disposed with adjacent terminals of different polarities (conventional arrangement), then electrical insulation between wirings is required, but this increases device complexity and reduces freedom of wiring arrangement

Engineering Contradiction:

Improvestructure complexityVSAvoidfreedom of wiring arrangement

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent inverts the conventional capacitor arrangement by disposing adjacent capacitors with terminals of the same polarity facing each other, rather than different polarities. This inversion eliminates the need for electrical insulation between adjacent capacitors, thereby reducing device complexity and increasing freedom of wiring arrangement while maintaining functional requirements

Inventive Principle:

Principle #13The other way round (Inversion)

2Reliability

If electrical insulation members are placed between connecting portions, then insulation is ensured, but this complicates the structure and reduces packaging density

Engineering Contradiction:

Improveelectrical insulationVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the electrical insulation members from the capacitor assembly by arranging capacitors with same-polarity terminals adjacent to each other. This removal of unnecessary insulation components simplifies the overall structure, reduces complexity, and increases packaging density while maintaining reliable electrical insulation through the strategic terminal arrangement

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If capacitors are arranged with clearances between them, then insulation is maintained, but this prevents miniaturization and reduces package density

Engineering Contradiction:

Improveelectrical insulationVSAvoidcapacitor module size

Core Design Contradiction:

ReliabilityVSVolume of stationary object

Solution Approach 1:

By inverting the conventional terminal arrangement to place same-polarity terminals adjacent to each other, the patent eliminates the need for clearance-based insulation. This allows capacitors to be disposed in close proximity without electrical insulation members, enabling miniaturization and increasing package density while maintaining reliable electrical insulation

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS8837113B2Capacitor module with simplified wiring arrangement and structure

Publication Date: 2014.09.16 ASTEMO LTD

AI summary

A capacitor module is provided with a plurality of capacitors juxtaposedly disposed to have electrode terminals that are composed of positive electrode terminals and negative electrode terminals, respectively. Neighboring capacitors, among the plurality of capacitors, are disposed adjacent to each other to define neighboring electrode terminals, among the electrode terminals thereof, with the same polarity.