Capacitor Device Terminal Alignment Guide Holes

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The complexity of aligning electric capacitors within a holder and connecting their leads to a wiring substrate in capacitor units, particularly in vehicle applications, where connection members and circuit substrates need better fixation and alignment.

Innovation Solution

A capacitor device with an accommodating case featuring engaging parts on the capacitor main bodies that align with an element member, allowing easy positioning and connection of terminal parts, and incorporating a center guide for precise orientation and connection of bus bars and circuit substrates, along with pressure release mechanisms and resin filling for stability and protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If electric capacitors are incorporated into a holder with leads connected to a wiring substrate, then the capacitor unit achieves functional integration, but the complexity of positioning and aligning the leads increases significantly

Engineering Contradiction:
Improveease of lead positioningVSAvoidcomplexity of lead alignment work
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The holder is designed with pre-formed guide holes at predetermined positions that correspond to the terminal parts of the capacitor main bodies. This preliminary arrangement of guide holes eliminates the need for complex lead positioning work during assembly, as the guide holes automatically guide the leads to their correct positions on the wiring substrate.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The holder acts as an intermediary component between the capacitor main bodies and the wiring substrate. It provides guide holes that mediate the connection process, ensuring proper alignment of leads with terminal parts without requiring complex manual positioning or adjustment during assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If connection members and circuit substrates are fixed within capacitor units, then structural stability is improved, but the complexity of securing these components increases

Engineering Contradiction:
Improvefixation stability of connection membersVSAvoidcomplexity of securing components
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The holder integrates multiple functions: it accommodates capacitor main bodies, provides guide holes for lead alignment, and serves as a mounting structure for connection members and circuit substrates. By merging these functions into a single component, the overall structure achieves stability without requiring additional separate securing mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The holder is designed as a multi-functional component that simultaneously provides mechanical support for capacitor main bodies, guidance for lead connections, and mounting structure for connection members and circuit substrates. This universality reduces the number of separate components needed and simplifies the overall securing process.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Manufacturing precision

If capacitor main bodies are accommodated with terminal parts in the same orientation, then connection alignment is simplified, but the flexibility of accommodation arrangements is reduced

Engineering Contradiction:
Improvealignment precision of terminal partsVSAvoidflexibility of accommodation arrangements
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The holder is designed with asymmetric guide hole arrangements that correspond to the specific orientation requirements of the capacitor main bodies. The guide holes are positioned and oriented in a non-symmetric pattern that ensures proper alignment of terminal parts while still accommodating the capacitors in a standardized configuration.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The holder provides localized guide structures at specific positions where capacitor main bodies are accommodated. Each guide hole is precisely positioned and oriented to match the terminal part orientation requirements of the capacitor main bodies, ensuring high alignment precision at the local level while maintaining overall structural flexibility.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP2784793B1Capacitor device
Publication Date: 2017.09.13 NIPPON CHEMI CON CORP
  • EP2784793B1 patent drawingFigure 1
  • EP2784793B1 patent drawingFigure 2
  • EP2784793B1 patent drawingFigure 3

AI summary

Provided is a capacitor device that allows the positions of terminals of a capacitor main body to be easily aligned and the production operation to be simplified. A capacitor device (1) has an accommodating case (3) in which a plurality of accommodating parts (5) are formed for accommodating capacitor main bodies (2), the plurality of accommodating parts (5) are oriented so that the longitudinal directions thereof all face the same direction, and the plurality of capacitor main bodies (2) are accommodated in the accommodating parts (5) in a manner such that the sides having terminal parts (4) are set up in the same orientation. The sides of the capacitor main bodies (2) having the terminal parts (4) are provided with engaging parts that engage with engaged parts provided to a predetermined element member (23), and the capacitor main bodies (2) are accommodated all together in the accommodating case (3) in a manner such that the engaging parts are engaged with the engaged parts.