Power Connection Interface With Opposite Surface Traces
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Solution Overview
Problem
Conventional redundant power supply systems have a limited number of trace wires for transmitting DC voltage due to the arrangement of live and neutral wires on the same surface, resulting in insufficient electricity transmission and reduced power density.
Innovation Solution
The power connection interface is designed with live and neutral wires arranged on opposite surfaces of the circuit board, allowing for an increased number of trace wires on the DC voltage transmission path, thereby enhancing electricity transmission and power density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If live and neutral wires are arranged on the same surface of the circuit board, then the structure is simple and easy to manufacture, but the number of trace wires for DC voltage transmission is limited and power density is reduced
Solution Approach 1:
The patent transitions from a two-dimensional arrangement (all wires on the same surface) to a three-dimensional arrangement (wires on opposite surfaces of the circuit board). By placing live and neutral wires on opposite surfaces, the design utilizes the third dimension (board thickness) to increase the number of available trace wires for DC voltage transmission without increasing surface area, thereby resolving the contradiction between wire quantity and structural simplicity.
2Power
If more trace wires are added to increase electricity transmission capacity, then power density improves, but the area occupied by AC voltage trace portions increases and safety intervals are compromised
Solution Approach 1:
The patent utilizes the third dimension by arranging AC voltage trace portions (live and neutral wires) on opposite surfaces of the circuit board. This vertical separation frees up surface area on each individual face, allowing more DC voltage trace wires to be packed onto the same surface without increasing the overall footprint or compromising safety intervals. The power transmission capacity increases while maintaining compact dimensions.
Solution Approach 2:
The patent segments the circuit board into distinct functional surfaces: one surface dedicated to AC voltage transmission (live and neutral wires) and the other surface to DC voltage transmission (multiple trace wires). This segmentation allows independent optimization of each trace portion, enabling maximum utilization of surface area for DC wires without interfering with AC wire requirements or safety clearance.
3Productivity
If the number of trace wires for DC voltage is increased, then power transmission improves, but the arrangement becomes more complex and safety regulations may be violated
Solution Approach 1:
By moving AC voltage trace portions to opposite surfaces, the patent creates sufficient spatial separation that automatically maintains required safety intervals. The vertical distance through the circuit board substrate provides inherent insulation and clearance, allowing multiple DC trace wires to be densely packed on the same surface without violating safety regulations, thus maintaining both high power transmission efficiency and reliability.
Data Source
AI summary
An electronic device includes a circuit board and a power connection interface. The power connection interface is formed on an edge region of the circuit board. The power connection interface includes a first trace portion for transmitting a DC voltage and second and third trace portions for transmitting an AC voltage. Plural trace wires of the first trace portion are arranged on first and second surfaces of the edge region. The second and third trace portions are arranged on opposite surfaces of the edge region.