Electrical Junction Box Structure for Flexible Terminal Arrangement
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Solution Overview
Problem
Existing electrical junction boxes lack flexibility in terminal arrangement design, limiting the ability to adapt to different connection partner configurations.
Innovation Solution
An electrical junction box design featuring a substrate, terminal holder, housing, and conductor unit with a frame portion and multiple second conductors, allowing for flexible positioning of terminals and simplified circuit connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If terminals are rigidly arranged on a substrate, then structural stability is maintained, but design freedom in terminal arrangement is limited
Solution Approach 1:
The invention separates the terminal support function from the substrate by introducing a terminal holder as an independent component. The substrate focuses on electrical connection while the terminal holder provides mechanical support and positioning, allowing terminals to be arranged flexibly without complicating the substrate design.
Solution Approach 2:
The terminal holder acts as an intermediary component between the substrate and the terminals. It mediates the connection by providing a dedicated mounting structure that decouples the terminal arrangement from the substrate, enabling design freedom while maintaining structural stability.
2Adaptability or versatility
If multiple separate components are used for terminal support and connection, then design flexibility is improved, but device complexity increases
Solution Approach 1:
The terminal holder integrates multiple functions into a single component: it provides mechanical support for terminals, enables flexible positioning, and facilitates electrical connection to the substrate. This merging reduces the number of separate components while maintaining design flexibility.
Solution Approach 2:
The terminal holder is designed as a universal component that can accommodate various terminal arrangements and configurations. Its multi-functional design allows it to serve as both a mechanical support structure and a positioning mechanism, reducing overall device complexity while improving adaptability.
Data Source
AI summary
An electrical junction box includes: a substrate; a terminal holder fixed to the substrate; each of terminals that has a first connection portion connected to a partner terminal, is held by the terminal holder in a state where the first connection portion is protruded, and is connected to the substrate; a housing that accommodates the substrate and the terminal holder; and a conductor unit fixed to the terminal holder or the housing, and the conductor unit includes: a first conductor that has a frame portion and is fixed to the terminal holder or the housing; and a plurality of second conductors each having a joint portion joined to the frame portion and a second connection portion connected to a partner terminal.