Substrate Unit Heat Dissipation Extension Insulation
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Solution Overview
Problem
Conventional substrate units face a trade-off between improved heat dissipation efficiency and assembly workability, as locating the heat dissipation member on the upper side often complicates the electrical connections to external devices, leading to potential short circuits and reduced workability.
Innovation Solution
A substrate unit design featuring a conductive member with an extension portion that intersects the plane of the heat dissipation member, utilizing an insulating member to prevent short circuits and maintain assembly ease, with the heat dissipation member positioned on the upper side for enhanced thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the heat dissipation member is located on the upper side to improve heat dissipation efficiency, then heat dissipation efficiency is improved, but the electrical connection portion is located on the lower side causing degradation in workability during assembly
Solution Approach 1:
The conductive member includes an extension portion that extends in a direction intersecting the plane of the heat dissipation member, transitioning from a planar arrangement to a three-dimensional configuration. This allows the extension portion to reach the upper side for electrical connections while the heat dissipation member remains on the upper side for thermal management, resolving the spatial conflict between these two functions.
Solution Approach 2:
The conductive member is segmented into a main portion fixed to the substrate and an extension portion that protrudes separately. This segmentation allows the extension portion to be positioned independently to facilitate electrical connections on the upper side, while the main portion maintains electrical connection with the substrate, thereby improving assembly workability without compromising heat dissipation efficiency.
2Ease of operation
If the extension portion of the conductive member intersects the plane of the heat dissipation member, then electrical connections are facilitated, but the risk of short circuit between the conductive member and heat dissipation member increases
Solution Approach 1:
An insulating member is introduced as an intermediary between the extension portion of the conductive member and the heat dissipation member. This insulating member prevents direct contact and potential short circuits while allowing the extension portion to maintain its intersecting configuration for facilitated electrical connections, thus resolving the contradiction between connection accessibility and short circuit prevention.
Data Source
AI summary
Provided is a substrate unit configured to improve heat dissipation efficiency while preventing workability from degrading at the time of assembly. A substrate unit includes: a substrate that has one surface on having a conductive pattern, and includes an opening; a conductive member that includes a main portion is fixed to the other surface of the substrate, and at least one terminal of an electronic component is electrically connected via the opening; and a heat dissipation member is fixed to a surface of the conductive member opposite a substrate side surface thereof, wherein the conductive member is provided with an extension portion that extends from the main portion of the conductive member and to which an external device is to be electrically connected, the extension portion intersecting a plane that extends along the heat dissipation member.