Free-standing Wireless Charging Headset with Balancing Mechanism
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Solution Overview
Problem
Existing audio headsets lack effective integration of wireless charging capabilities, particularly for headsets that balance on an earcup, as previous solutions either compromise user comfort or fail to provide stability when resting on a surface for charging.
Innovation Solution
A wireless charging headset design featuring a headband coupled with a fork body and earcup, utilizing a holding mechanism with a shaft and spring-loaded ball bearings to maintain alignment and prevent falling, while allowing rotation for comfort, and incorporating wireless charging coils for efficient power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a headset incorporates wireless charging coils in the earcup, then wireless charging capability is achieved, but the headset becomes unstable and falls when resting on a surface
Solution Approach 1:
The headset is divided into functionally independent segments: the earcup containing wireless charging coils for charging function, and the headband with balancing weight for stability function. This segmentation allows each part to optimize its specific function without compromising the other.
Solution Approach 2:
The density distribution parameter of the headset is changed by adding a balancing weight to the headband. This parameter modification shifts the center of gravity to achieve stable equilibrium when the headset rests on an earcup surface, directly resolving the stability issue.
2Ease of operation
If the headset design allows rotation for user comfort, then ease of operation is improved, but alignment with charging coils becomes inconsistent
Solution Approach 1:
The balancing weight is pre-positioned in the headband during manufacturing to establish a predetermined center of gravity. This preliminary action ensures that when the headset rests on an earcup, it automatically achieves both stable balance and proper coil alignment without requiring user adjustment.
Solution Approach 2:
The design creates a geometric relationship where the earcup's outer surface geometry mirrors the intended resting position, and the balancing weight is positioned to complement this geometry. This copying approach ensures consistent alignment across different headset units.
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 stable and efficient wireless charging of headsets when resting on an earcup surface, maintaining user comfort and durability by preventing the headset from falling and ensuring proper alignment with charging coils.
Implementation Method 1
Wireless charging is often achieved in consumer electronics by inducing magnetic induction, i.e., a time-varying magnetic field that generates an electromotive force in a complementary inductor
Implementation Method 2
The holding mechanism includes a shaft to couple the headband with the fork body, at least one ball bearing mechanism comprising a spring-loaded ball bearing
Data Source
AI summary
Headsets of the inventive subject matter are configured to stand freely on an outer surface of an earcup, and they incorporate wireless charging in one or more earcups so that the headset can be wirelessly charged while resting on an outer surface of an earcup. To make this charging configuration possible, one or more holding mechanisms are implemented to couple one or both of the fork bodies (e.g., the structure to which an earcup is coupled) to the headband of a headset. Holding mechanisms of the inventive subject matter prevent the headset from toppling over while charging due to rotation of the headband relative to the earcup that the headset is resting on.