Power Supply Case Notch Layout for Heat-Radiating Components
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Solution Overview
Problem
In power supply apparatuses, the side plates of cases can obstruct heat radiation and restrict the layout of circuit elements due to their placement on the board's end portions, limiting the arrangement of components.
Innovation Solution
A case design with plate-shaped portions and side walls that include notch portions corresponding to the shape of specific circuit elements, allowing these elements to extend to the board's ends while providing space for heat radiation and flexible layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If side plates are placed on end portions of the board to increase case rigidity, then the rigidity of the case is improved, but heat radiation is blocked and circuit element layout is restricted
Solution Approach 1:
The side plates are designed with through-holes at specific locations corresponding to heat-generating circuit elements. This creates local differences in the side plate structure: solid portions maintain rigidity while hollow portions allow heat radiation. The side plate thus has non-uniform quality distribution optimized for both structural and thermal requirements.
Solution Approach 2:
The side plate structure is segmented into solid portions for rigidity and hollow portions with through-holes for heat radiation. This segmentation allows the side plate to simultaneously fulfill multiple functions: maintaining case rigidity while enabling thermal management pathways for circuit elements.
2Strength
If side plates are placed on end portions of the board to increase case rigidity, then the rigidity of the case is improved, but the layout of circuit elements is restricted
Solution Approach 1:
The side plates incorporate through-holes at locations corresponding to circuit elements that need to extend to board end portions. This local modification allows specific circuit elements to pass through the side plates and be positioned at board ends without compromising overall case rigidity, thereby improving layout flexibility.
3Adaptability or versatility
If circuit elements are extended to board end portions to improve layout efficiency, then layout flexibility is improved, but heat radiation may be blocked by side plates
Solution Approach 1:
The side plates are designed with through-holes at specific locations where circuit elements need to extend to board end portions. These localized openings allow heat-generating circuit elements to maintain direct thermal pathways to the外部环境, ensuring effective heat radiation while preserving the desired circuit element layout.
Data Source
AI summary
A power supply apparatus includes a board including a major surface on which a circuit element group is mounted, and a case attached to the board. The case includes a plate-shaped portion that is located at a distance from the board and faces the major surface, and a side wall portion extending from the plate-shaped portion toward one end portion of the board. One end of a specific circuit element among the circuit element group reaches the one end portion of the board, the one end of the specific circuit element being directed to the side wall portion. The side wall portion is provided with a notch portion with a shape corresponding to an outer shape of the one end of the specific circuit element.