Connector Housing Legs With Conical Guides to Prevent PCB Tilting
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Solution Overview
Problem
Existing electrical connectors face challenges in maintaining horizontal orientation during insertion into printed circuit boards due to guiding inclined surfaces, leading to potential misalignment and tilting in both length and width directions.
Innovation Solution
The connector design features legs with conical guides and positioning ends that contact the circuit board's inner wall, preventing tilting by using conical guides to ensure correct alignment and positioning protrusions to secure the connector in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an elongated inclined surface is used to guide the leg during insertion, then insertion is facilitated, but the connector housing may tilt in the length direction
Solution Approach 1:
The patent replaces the traditional elongated inclined surface with a conical guide structure. The conical shape provides curved guiding surfaces that gradually guide the leg into the hole while maintaining horizontal orientation of the housing, preventing tilting in the length direction during insertion.
2Ease of operation
If there is a gap between the leg and the hole of the circuit board, then insertion is easier, but the housing may tilt in the width direction
Solution Approach 1:
The conical guide structure with its curved surfaces provides gradual guidance while the positioning protrusions extend laterally to contact the inner wall of the hole, preventing horizontal tilting in the width direction. This combination allows easy insertion while maintaining precise alignment.
Solution Approach 2:
The patent adds positioning protrusions that extend from the legs in the width direction to contact the inner wall of the hole. This additional dimensional constraint prevents horizontal tilting while maintaining the gap for easy insertion.
Data Source
AI summary
A connector comprises a housing having at least a pair of legs extending from a bottom thereof, and at least one conductive terminal arranged in the housing. Each of the legs includes a body connected to the bottom of the housing and extending downward in a height direction of the housing. A conical guide is connected to a lower end of the body of each leg for guiding the leg into a hole formed in a circuit board. A positioning end is connected to a lower end of the conical guide of each leg and includes a positioning surface extending in the height direction for contacting an inner wall of the hole.