Electronic Part Module Bus Bar Orientation for Compact Junction Boxes
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Solution Overview
Problem
Conventional electronic part modules for vehicle electrical junction boxes are limited by their size due to the alignment of external terminal-connecting portions and relays, which restricts further downsizing along the direction of electrical connection.
Innovation Solution
The electronic part module design features a configuration where the external terminal-connecting portions of bus bars are collected and aligned perpendicular to the insulating panel, allowing for a reduced height by positioning them between two rows of relays, with part-mounting and intermediate portions integrated into the same plane, and using a case structure that minimizes overlap and maximizes space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If external terminal-connecting portions and relays are aligned in the direction of electrical connection, then electrical connectivity is maintained, but the module length increases
Solution Approach 1:
The patent repositions the external terminal-connecting portions from a linear alignment along the electrical connection direction to a collected arrangement in a different spatial dimension (between relay rows, extending from insulating panel edges). This dimensional reconfiguration reduces the module length while preserving electrical connectivity through alternative spatial pathways.
Solution Approach 2:
Instead of extending external terminal-connecting portions linearly from relays in the connection direction, the patent inverts the approach by collecting them at insulating panel edges and positioning them between relay rows. This inverted arrangement achieves the same electrical function with reduced dimensional footprint.
2Length of stationary object
If external terminal-connecting portions extend beyond insulating panel edges, then electrical connection is achieved, but the module height increases
Solution Approach 1:
The patent applies local quality by selectively positioning external terminal-connecting portions only at specific locations (edges of insulating panels) rather than uniformly extending them. This localized arrangement achieves electrical connection functionality while minimizing overall module height.
Solution Approach 2:
The external terminal-connecting portions are nested within the space between relay rows, utilizing the existing spatial structure. This nesting approach allows electrical connection components to be accommodated within the module's vertical envelope without increasing overall height.
Data Source
AI summary
An electronic part module, comprising: an electronic part substrate having an insulating panel to which a plurality of bus bars is attached, each of the bus bars having an external terminal-connecting portion and being electrically connected to an electronic part, a case for receiving the electronic part substrate therein, and a connector-connecting portion in which a plurality of the external terminal-connecting portions of the plurality of bus bars is collected, and which is disposed between a plurality of the electronic parts.