Keyed High-Current Connector Layout to Prevent PCB Short Circuits
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Solution Overview
Problem
Traditional connectors face challenges in providing stable and reliable high-current transmission from wires to printed circuit boards, often resulting in improper connections like short circuits due to lack of differentiation between electrodes.
Innovation Solution
A connector design featuring a housing with distinct foolproof key positions and current divider pins, along with reinforcing ribs and extension pieces, to ensure proper alignment and secure fixing, preventing short circuits and enhancing heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If traditional connectors are used for high-current transmission, then current transmission capability is improved, but connection reliability deteriorates due to improper connections and short circuits
Solution Approach 1:
The patent applies asymmetry by creating a height difference between the first opening and the second opening in the housing. This asymmetric design ensures that electrodes with different heights can be properly distinguished and connected to corresponding solder holes, preventing improper connections and short circuits while maintaining high-current transmission capability
Solution Approach 2:
The patent implements preliminary action by providing foolproof key positions on the housing that guide the insertion of the wire end connector. These key positions are prepared in advance to ensure correct alignment and orientation of the electrodes before connection, preventing improper connections and ensuring reliable high-current transmission
2Volume of moving object
If electrodes are closely arranged for compact design, then device size is reduced, but risk of short circuit increases due to lack of differentiation
Solution Approach 1:
The patent uses asymmetry by designing the first opening and second opening at different heights. This height differentiation allows electrodes to be closely arranged while maintaining clear distinction between them, preventing short circuits even in a compact connector design
Solution Approach 2:
The patent applies dimensionality change by utilizing the vertical height dimension to differentiate between the first opening and second opening. Instead of only horizontal separation, the height difference provides an additional dimensional cue for proper electrode alignment and connection, reducing short circuit risk in compact designs
3Device complexity
If single electrode design is used for simplicity, then device complexity is reduced, but heat dissipation capability deteriorates for high-current applications
Solution Approach 1:
The patent applies segmentation by dividing the electrode structure into multiple separate electrodes (first electrode and second electrode). Each electrode can be independently connected to solder holes, distributing the current path and improving heat dissipation capability for high-current applications while maintaining relatively simple overall structure
Data Source
AI summary
A connector includes a housing, a first electrode and a second electrode. The housing further includes a first body, bending parts, foolproof key positions, a second buckle, a first opening and a second opening. The first body forms a first accommodating space and a second accommodating space. The first accommodating space is provided with the foolproof key positions, the first opening, the second opening and the second buckle. The second buckle can be arranged corresponding to a first buckle of the wire end connector to buckle the wire end connector in the first accommodating space and the second accommodating space. The first electrode includes a first end and a third end, and the third end forms first current divider pins. The second electrode includes a second end and a fourth end, and the fourth end forms second current divider pins.