Charging Stand Multi-Height Contact Pins
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Solution Overview
Problem
Existing charging systems for portable electronic devices are inconvenient, often requiring two hands to use and can fail to recharge due to slight misalignment of electrical contacts between the device and the charging stand.
Innovation Solution
A charging stand with a unique design featuring base contact pins and a raised portion contact pin, where the raised portion contact pin is electrically isolated and positioned to prevent short circuits, allowing for easy alignment and reliable charging without the need for precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a charging stand with multiple contact pins is used, then charging reliability is improved, but device complexity increases
Solution Approach 1:
The charging stand contacts are segmented into multiple independent contact pins (first contact pin, second contact pin, third contact pin) with different heights. This segmentation allows each pin to independently make contact with corresponding pins on the charging cable connector, improving charging reliability while maintaining manageable complexity through modular contact design.
Solution Approach 2:
The contact pins are arranged in a three-dimensional configuration with varying heights (first height, second height, third height) rather than a flat two-dimensional arrangement. This vertical dimensionality allows multiple contact points at different elevations, enabling reliable charging connection without requiring complex lateral alignment mechanisms.
2Reliability
If precise alignment of electrical contacts is required, then charging reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The charging stand contacts are designed with varying heights to create a dynamic contact sequence. When the charging cable connector is placed on the stand, the taller contact pins make contact first, followed by shorter pins as the connector settles. This dynamic contact progression ensures reliable charging connection without requiring precise initial alignment by the user.
Solution Approach 2:
The multi-height contact pin design provides a cushioning effect against misalignment. The varying heights create tolerance zones that absorb positioning errors, ensuring that even if the connector is not perfectly aligned, sufficient contact pins will still make reliable connection to enable charging.
3Volume of moving object
If electrical contacts are positioned closer together, then device compactness is improved, but risk of short circuit increases
Solution Approach 1:
The contact pins are arranged in a three-dimensional space with varying heights rather than being confined to a single plane. This vertical separation provides additional spatial dimension for electrical isolation, allowing compact horizontal arrangement while maintaining safe electrical distances through height differentiation and isolated mounting structures.
Solution Approach 2:
The charging stand structure acts as an intermediary between the contact pins, providing isolated mounting points and structural separation. The stand's body serves as a dielectric medium that electrically isolates the contact pins from each other and from the grounding surface, enabling compact pin arrangement without short circuit risk.
Data Source
AI summary
A charging stand is provided including a body having a first surface, and a bump having a top region and one or more sides. The one or more sides extend between the first surface and the top region. The charging stand further includes one or more base contact pins that are coupled to the body. Each base contact pin has an exposed end disposed at a first distance in a first direction from the first surface. The charging stand further includes a bump contact pin extending from the top region of the bump. The bump contact pin has an exposed end disposed a second distance in the first direction from the first surface, the second distance is greater than the first distance, and the first direction is perpendicular to the first surface.