Micro Power Connector Ground Terminal Side Wall Creepage
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Solution Overview
Problem
Existing micro power connectors without a ground terminal pose safety risks due to insufficient creepage distance, and adding a ground terminal increases the connector's volume, making it unsuitable for high-density arrangements in narrow spaces.
Innovation Solution
A micro power connector design featuring a ground terminal with resilient protrusions on the side walls and recesses on the power terminals to maintain a safe creepage distance without increasing the connector's size, ensuring the ground terminal is positioned on the side walls and the power terminals have recesses to enhance spacing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a ground terminal is added to improve electrical security, then the creepage distance increases, but the volume of the connector increases
Solution Approach 1:
The ground terminal is disposed on the side wall of the insulation body rather than inside the main body, utilizing the lateral dimension to achieve proper creepage distance without increasing the overall connector volume. This dimensional repositioning allows the ground terminal to be electrically isolated from power terminals while maintaining compact dimensions.
2Volume of stationary object
If the ground terminal is disposed inside the insulation body, then the creepage distance is reduced, but the electrical security deteriorates
Solution Approach 1:
The ground terminal is repositioned from the internal space to the side wall surface, utilizing the lateral dimension to achieve the required 1.2mm creepage distance while maintaining the same connector volume. This dimensional relocation resolves the conflict between compact size and electrical safety.
3Reliability
If the ground terminal is placed on the side wall, then the creepage distance is maintained, but the resilient protrusion may contact the power terminal
Solution Approach 1:
A recess is created locally on the power terminal at the position facing the resilient protrusion. This local structural modification increases the spacing between the resilient protrusion and power terminal, preventing harmful contact while maintaining the overall compact design and required creepage distance.
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
This design maintains a safe creepage distance of at least 1.2 mm between terminals while allowing the micro power connector to be compact enough for high-density arrangements in narrow spaces, enhancing electrical security and usability.
Implementation Method 1
The ground terminal has resilient protrusions
Data Source
AI summary
A power connector is disclosed. The power connector has an insulation body, a ground terminal disposed on a side wall of the insulation body, and a power terminal disposed in the insulation body. The ground terminal has a resilient protrusion. A side surface of the power terminal has a recess facing the resilient protrusion, increasing a spacing between the resilient protrusion and the power terminal.