Magnetized Connecting Member for Semiconductor Signal Line Alignment
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Solution Overview
Problem
The assembly of semiconductor stacks in vehicle systems, such as hybrid vehicles, is hindered by positional variations of power semiconductor elements and coolers, leading to misalignment issues with signal lines and connectors, which complicates the assemblability and increases manufacturing costs.
Innovation Solution
A connecting member with a fitting portion and a leading portion, featuring a tapered shape and a magnetized portion, is used to guide and securely attach signal lines to connectors, correcting misalignment and improving assemblability without requiring precise dimensional accuracy or increased manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If dimensional accuracy of power semiconductor elements and coolers is improved to reduce positional variations, then assemblability of signal lines to connectors is improved, but manufacturing cost increases
Solution Approach 1:
A connecting member is introduced as an intermediary component between the signal line and connector. This connecting member includes a leading portion that guides the signal line tip and a fitting portion that connects to the connector, thereby mediating the connection process and compensating for positional variations without requiring high dimensional accuracy of the original components
Solution Approach 2:
The connecting member changes the geometric parameters of the connection interface by providing a leading portion with a specific shape (e.g., tapered or curved) that transforms the insertion trajectory. This parameter change allows the signal line to be guided into the connector even when positional variations exist, reducing the need for precise dimensional control
2Manufacturing precision
If positional tolerances of power semiconductor elements are reduced to improve signal line alignment, then assemblability is improved, but manufacturing cost increases
Solution Approach 1:
The connecting member serves as a mediator that absorbs positional tolerances. Its leading portion is designed to accommodate variations in signal line position while still enabling successful connection to the connector, thus allowing larger positional tolerances without compromising assemblability
Solution Approach 2:
The connection function is segmented into two parts: the leading portion that handles guidance and tolerance accommodation, and the fitting portion that handles the actual connection. This segmentation allows each part to be optimized independently, with the leading portion compensating for positional variations
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The connecting member effectively leads signal line tips to their corresponding fitting portions, enhancing the assemblability of semiconductor devices by reducing friction and utilizing attractive forces, thus simplifying the assembly process and reducing manufacturing costs.
Implementation Method 1
a magnetized portion, is used to guide and securely attach signal lines to connectors
Data Source
AI summary
A connector includes a fitting hole into which a signal line is fitted, a tapered portion formed to lead a tip portion of the signal line to the fitting hole, and a bonded portion for bonding the connector to a control substrate. The tapered portion has a tapered shape on a side where the signal line is inserted. The tapered shape is tilted from a peripheral portion of the tapered portion to the fitting hole in a direction along which the signal line is inserted, with the fitting hole set as a center.