Smart Watch Strap Integrated Charging via Rotatable USB Plug
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Solution Overview
Problem
Smart watches require separate, non-standard charging cables from different manufacturers, making it inconvenient for users to carry a specific cable for charging on the go.
Innovation Solution
Integration of charging contacts and a universal USB plug within the watch strap, with embedded cables and rotatable design allowing contact with charging terminals on the watch body for charging without a specific cable, utilizing flexible circuit boards and elastic conductive terminals for secure connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate non-standard charging cables are designed for each smart watch, then charging function is achieved, but user convenience deteriorates due to needing to carry specific cables
Solution Approach 1:
The charging cable is merged with the watch strap structure. The strap contains embedded cables and charging contacts that integrate the charging function into the strap itself, eliminating the need for separate charging cables. This allows the strap to serve dual purposes: wearing and charging.
Solution Approach 2:
The watch strap is designed with universal charging capability through standardized USB plugs and contacts. The strap can function as both a wearable component and a charging device, allowing it to charge the watch body without requiring manufacturer-specific cables. This multi-functional design improves adaptability while maintaining ease of use.
2Ease of operation
If charging cable is integrated into watch strap, then user convenience is improved, but device complexity increases
Solution Approach 1:
The charging system is segmented into distinct functional components: USB plug, cables, charging contacts, and charging terminals. Each component has a specific function and can be independently manufactured and assembled. The strap contains the cables and contacts, while the watch body contains the terminals, allowing modular production and simplifying the overall integration process.
Solution Approach 2:
The watch strap is designed with rotatable connection to the watch body, allowing dynamic adjustment of the strap position. This rotational mechanism enables the charging contacts on the strap to align and contact the charging terminals on the watch body, providing a flexible and adaptable connection that simplifies the charging process while managing structural complexity through controlled movement.
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
Enables convenient charging of smart watches without the need for a specific charging cable, as the integrated USB plug and cables allow charging through standard USB connections, improving user experience by eliminating the need for carrying additional accessories.
Implementation Method 1
cables connected to the charging contacts and the USB plug... the cables are embedded in the watch strap... each of the cables is a flexible circuit board
Implementation Method 2
the charging contact is a movable ejector pin, the charging terminal is a conductive terminal of a V-shaped elastic sheet or a conductive terminal having a recess at its end portion
Data Source
AI summary
A smart watch includes a watch body and watch straps respectively connected to two sides of the watch body. At least one watch strap includes charging contacts, a USB plug, and cables connected to the charging contacts and the USB plug, and the charging contacts are disposed on a back of the watch strap. Charging terminals configured to cooperate with the charging contacts are disposed on a back of the watch body. The charging contacts and the charging terminals are electrically contacted to charge the smart watch after the watch strap disposed with the USB plug is attach to the back of the watch body.