Card Connector Common Housing via Asymmetric Cranked Hooks
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Solution Overview
Problem
Existing card connectors that allow cards to be loaded on both surfaces of a printed circuit board face challenges in creating a common housing due to the coupled structure of the housing and cover, leading to increased production costs and component complexity.
Innovation Solution
A card connector design featuring projections and openings on the lateral surfaces of the housing and cover, allowing for the use of common components and enabling the connectors to be mounted on both surfaces of the printed circuit board, with the projections and openings forming cranked hooks or H-shapes for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a card connector is designed to be mounted on both surfaces of a printed circuit board with cards and ejection buttons oriented in the same direction, then the adapter can be loaded on both surfaces of the printed circuit board, but it has been difficult to make a common housing due to the coupled structure of housing and cover
Solution Approach 1:
The housing is designed with asymmetric features including a projection on one lateral surface and a recess on the opposite lateral surface. This asymmetric configuration allows the same housing structure to accommodate different mounting orientations on both surfaces of the printed circuit board while maintaining proper card and ejection button alignment, thereby enabling versatility without increasing structural complexity
Solution Approach 2:
The housing and cover are designed as universal components that can serve multiple functions and mounting configurations. The coupled structure incorporates standardized engagement features that allow the same housing assembly to be mounted on either surface of the printed circuit board, eliminating the need for separate housing designs for different orientations and reducing overall device complexity
2Reliability
If components having different shapes are used for connectors mounted on both surfaces, then the connectors can function properly on each surface, but components having different shapes increase production cost
Solution Approach 1:
The housing, cover, and internal components are designed as universal parts that maintain their shape and structure while serving both mounting surfaces. The coupled structure with standardized projections and recesses allows a single component design to be used for both top and bottom surface connectors, eliminating the need to manufacture different-shaped components and thereby reducing production costs while preserving proper connector functionality
Solution Approach 2:
The connector is segmented into modular components (housing, cover, contacts, ejection mechanism) that can be independently manufactured and then assembled. This segmentation allows each component to be optimized for its specific function while maintaining compatibility across both mounting surfaces, reducing the need for different-shaped components and lowering manufacturing costs
Data Source
AI summary
The present invention provides a card connector that can be loaded on a double-sided printed circuit board and allows intergration of components using common components. A first and a second housing 1, 2 have a pair of cranked hook-shaped projections 17. A first and a second covering plate 5, 6 have a cranked hook-shaped opening 57. The first covering plate 5 can be joined to the second housing 2 by reversing in a left-right direction the first covering plate 5. The second covering plate 6 can be joined to the first housing 1 by reversing in a left-right direction the second covering plate 6. The first and the second housings 1, 2, and the first and the second covering plates 5, 6 can be used as common parts, respectively.