Board-Holder Capacitor Structure for Circuit Heat Dissipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional case-mold-type capacitors face issues with heat dissipation from electronic circuits embedded in mold resin, leading to potential defects in the capacitor elements and circuits due to inadequate thermal management.
Innovation Solution
A capacitor design that includes a circuit board with a board holder to fix the circuit board in a way that it is exposed from the filling resin, allowing for effective heat dissipation, and uses a filling resin to securely embed the capacitor elements and board holder within a case, ensuring the circuit board is not obstructed by the resin, thus facilitating heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the circuit board is embedded in the mold resin, then the capacitor structure is compact and integrated, but heat dissipation from the circuit board becomes inadequate
Solution Approach 1:
The circuit board is extracted from the mold resin embedding and positioned externally, allowing it to be exposed to ambient air for effective heat dissipation while maintaining structural integration through the board holder mechanism
Solution Approach 2:
The capacitor structure is segmented into distinct functional zones: the mold resin contains the capacitor element, while the board holder separately supports the circuit board in an exposed position, enabling independent thermal management for each component
2Temperature
If the circuit board is exposed from the filling resin, then heat dissipation is improved, but the structural integration and protection are reduced
Solution Approach 1:
The board holder acts as an intermediary structure that connects the circuit board to the case, providing mechanical support and protection while maintaining the exposed position of the circuit board for heat dissipation
Solution Approach 2:
The board holder is designed with positioning protrusions and recesses that provide pre-established mechanical protection and stable positioning for the circuit board before any thermal or mechanical stress occurs
Data Source
AI summary
A capacitor includes a capacitor element, a case housing the capacitor element, a filling resin filled in the case, and a board holder including a fixing part to which a circuit board mounted with an electronic circuit is to be fixed. The board holder is configured to hold the circuit board to be exposed from the filling resin.