Magnetic Induction Earphone Charging for Continuous Use
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless earphones face challenges with battery life and power management, requiring frequent charging and often necessitating removal from use, which can be inconvenient, especially when on the move.
Innovation Solution
A wireless, magnetic-induction charging system with a cable having two ends, one for power input (USB-C or Thunderbolt) and the other with magnetic tips for securement to earphones, allowing charging while in use, eliminating the need for carrying cases and extending earphone life with onboard rechargeable batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless earphones use rechargeable batteries to provide power source, then portability and wireless freedom are improved, but battery life becomes limited and frequent charging is required
Solution Approach 1:
The charging system performs preliminary action by enabling charging to occur during the earphones' usage period. The magnetic charging cable allows power transfer while the earphones remain in use, so that charging is done in advance of battery depletion rather than after usage stops.
Solution Approach 2:
The system maintains continuity of useful action by allowing both charging and usage to occur simultaneously. The magnetic cable enables continuous power supply to the earphones during playback, eliminating idle charging time and ensuring the charging action continues alongside the useful listening action.
2Use of energy by moving object
If earphones are removed for charging, then battery can be recharged, but earphones become unusable during charging time
Solution Approach 1:
The system performs preliminary action by initiating charging before the battery is depleted. The magnetic cable enables power transfer to start immediately, so charging begins in advance of when the battery would otherwise run out, preventing any loss of usage time.
Solution Approach 2:
The system ensures continuity of useful action by allowing the earphones to remain in use while charging. The magnetic cable design permits simultaneous charging and playback, so the useful action of listening continues without interruption while energy is being replenished.
3Ease of manufacture
If traditional charging cables are used, then earphones can be charged, but magnetic securement and alignment are not achieved
Solution Approach 1:
The system replaces the traditional mechanical plug-and-socket charging connection with a magnetic field-based connection. The magnetic cable uses magnetic attraction to automatically align and secure the earphones to the charging case, eliminating the need for precise manual alignment and providing easier operation.
Solution Approach 2:
The system changes the physical parameter of connection from mechanical insertion to magnetic attraction. By utilizing magnetic field strength and polarity as the connecting parameter instead of physical fit, the system achieves automatic alignment and securement that is both easier to manufacture and operate.
4Volume of moving object
If earphones are small in size, then portability is improved, but battery power and capacity are reduced
Solution Approach 1:
The system performs preliminary action by continuously top-up charging the small battery during usage. The magnetic cable enables power transfer to begin before battery depletion, so that despite the small battery capacity, the earphones receive power in advance and maintain operation throughout the intended usage period.
Solution Approach 2:
The system ensures continuity of useful action by maintaining simultaneous charging and usage. The small battery is continuously replenished during playback through the magnetic cable connection, allowing the earphones to maintain power levels throughout extended use without requiring larger battery capacity.
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 continuous use of earphones during charging, extends battery life, and prevents downtime by providing an ongoing power source, optimizing charge levels based on earphone type, and offering convenience through magnetic securement and versatile charging connections.
Implementation Method 1
A wireless, magnetic-induction charging system with a cable having two ends, one for power input (USB-C or Thunderbolt) and the other with magnetic tips for securement to earphones
Implementation Method 2
A wireless, magnetic-induction charging system with a cable having two ends, one for power input (USB-C or Thunderbolt) and the other with magnetic tips for securement to earphones
Data Source
AI summary
A charging system, a device for charging earphones while the earphones are in use, process, and method of use are presented. The present disclosure is configured to provide a wireless, magnetic-induction charging cable for charging and/or recharging headphones and/or wireless headphones and/or earphones. In the arrangement shown, as one example, system 10 is generally configured of a cable having two ends. One end, a plug end (to be further described herein), accepts power from a power source. This end may be formed of a USB-C type connection, a Thunderbolt® connection, or the like. The charging end is configured to connect and accept wireless headphones therein, such as Airpods®, for example. Another example, and in an alternative embodiment, the charging end is configured to accept with close and tight tolerances, as well as through magnetic securement, Pixel Buds® for charging through inductance.