Ring-Shaped Wireless Charging Module in Headphones
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Solution Overview
Problem
Current wireless headphones with wireless charging functionality are restricted by the need for a flat, interference-free surface for the induction coil, limiting design flexibility and preventing the installation of electronic components like indicator lights or buttons on the rear housing.
Innovation Solution
A ring-shaped wireless charging module is positioned between the front housing and the speaker module, allowing for stable operation and design flexibility without interfering with adjacent components, using magnetic resonance for charging efficiency and design integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the induction coil is secured at the central area of the rear housing to achieve stable electromagnetic induction, then the wireless charging function operates reliably, but the rear housing cannot adopt curved or slanted surface designs and cannot have other electronic components installed
Solution Approach 1:
The induction coil is relocated from the traditional rear housing central area to the front housing inner side, positioned adjacent to the acoustic holes. This spatial reconfiguration in a different dimension (from rear to front) resolves the conflict by providing a new location that satisfies both electromagnetic induction requirements and design flexibility needs
Solution Approach 2:
The front housing inner side adjacent to the acoustic holes is selected as a specialized zone for placing the induction coil. This local area provides the necessary characteristics for stable electromagnetic induction while being spatially separated from the rear housing design constraints, allowing curved or slanted surfaces and additional electronic components to be installed elsewhere
2Reliability
If the induction coil requires a flat and uniform attachment surface for stable electromagnetic induction, then charging efficiency is maintained, but the rear housing design is constrained and cannot use curved or slanted surfaces
Solution Approach 1:
The induction coil placement is moved from the rear housing dimension to the front housing dimension, specifically at the inner side adjacent to acoustic holes. This dimensional shift allows the rear housing to adopt curved or slanted surfaces without affecting the flat surface requirement for the induction coil
Solution Approach 2:
A specific local area in the front housing inner side adjacent to the acoustic holes is designated for the induction coil, providing the necessary flat surface for stable electromagnetic induction. This localized solution does not constrain the overall housing shape design
3Reliability
If the induction coil is placed in the rear housing to avoid interference from other components, then electromagnetic induction is stable, but the design appearance and electronic components cannot be changed
Solution Approach 1:
The induction coil is relocated from the rear housing to the front housing inner side, utilizing a different spatial dimension. This relocation provides adequate separation from other electronic components while allowing the rear housing design and appearance to remain flexible and unchanged
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
Enhances design, assembly, and operational stability of wireless headphones by enabling curved or slanted designs and the inclusion of electronic components without altering the appearance or functionality, while achieving efficient wireless charging through magnetic resonance.
Implementation Method 1
A ring-shaped wireless charging module is positioned between the front housing and the speaker module, allowing for stable operation and design flexibility without interfering with adjacent components, using magnetic resonance for charging efficiency and design integration
Data Source
AI summary
A wireless charging headphone (10) includes a headphone housing (1), a speaker module (2) and a ring-shaped wireless charging module (3). The headphone housing (1) includes a front housing (11) and a cavity (s), and the front housing (11) includes a plurality of acoustic holes (111). The speaker module (2) is received inside the cavity (s) and arranged corresponding to the plurality of acoustic holes (111). The ring-shaped wireless charging module (3) is received inside the cavity (s), and the ring-shaped wireless charging module (3) is arranged between the front housing (11) and the speaker module (2). Accordingly, the wireless charging headphone (10) is able to achieve the effects of excellent design, facilitated assembly and operation stability.