Electronic Component Unit Cantilever Block Assembly
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Solution Overview
Problem
Conventional electronic component units, such as electric wiring blocks, face challenges in tolerance absorption, vibration mitigation, and proper installation of electronic components, particularly in vehicle applications.
Innovation Solution
An electronic component unit comprising blocks with block-side joints and a supporting wall body, where the blocks are joined in a cantilever fashion with gaps between them, allowing for enhanced tolerance absorption and vibration resistance through a configuration of first and second joints that engage and stop each other, and a supporting wall body that fixes the blocks with a smaller distance in one direction than between the blocks themselves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If blocks are joined together with gaps between main body portions, then tolerance absorption is improved, but structural rigidity deteriorates
Solution Approach 1:
The electronic component unit is divided into multiple blocks that can be assembled separately. Each block contains main body portions with electronic components and joints for connection. This segmentation allows tolerance absorption through gaps between blocks while maintaining individual block integrity.
Solution Approach 2:
Joints serve as intermediary elements connecting blocks together. The joints include engagement projections and recesses that facilitate reliable connection between blocks while accommodating dimensional tolerances. The supporting wall body acts as an intermediary structure that reinforces the overall assembly.
2Strength
If blocks are joined in a rigid fixed manner, then structural rigidity is improved, but vibration resistance deteriorates
Solution Approach 1:
The joint design incorporates dynamic characteristics that allow controlled movement and flexibility. The engagement projections and recesses enable the blocks to accommodate vibration and thermal expansion while maintaining connection. The supporting wall body provides reinforcement without creating rigid constraints that would amplify vibration.
3Temperature
If blocks are arranged side by side with gaps, then thermal interference is reduced, but installation complexity increases
Solution Approach 1:
The unit is segmented into multiple blocks that can be independently assembled. Each block contains electronic components mounted on main body portions. The gaps between blocks provide thermal isolation while the standardized joint design simplifies the assembly process.
Solution Approach 2:
Electronic components are pre-mounted on the main body portions of each block before final assembly. The blocks are designed with pre-formed joints including engagement projections and recesses. This preliminary preparation reduces installation complexity by allowing blocks to be assembled as pre-configured units rather than building the entire structure from individual components.
Data Source
AI summary
An electronic component unit applicable to a wire harness includes: a plurality of blocks each including at least one main body portion to each of which an electronic component is attached, the blocks each including block-side joints for joining any two of the blocks to each other, the blocks being joined together via the block-side joints with the main body portions arranged side by side in a first direction with gaps between adjacent ones of the main body portions; and a supporting wall body including a plurality of wall-body side joints for supporting and fixing in a second direction intersecting the first direction, in a cantilever fashion, the blocks joined together via the block-side joints.