Wireless Hearing Device Charging With Feedback Power Control
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Solution Overview
Problem
Charging of hearing devices can lead to excessive energy output, causing damage to the device and its components or the user, and existing technologies do not effectively regulate this energy to prevent overheating and prolong device lifespan.
Innovation Solution
A hearing device with a charging controller that regulates energy delivery through a data connection with a charger, using sensors to monitor temperature and other parameters to adjust charging schemes and request specific energy levels from the charger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless charging provides high energy output to charge the hearing device quickly, then charging speed is improved, but the device may overheat and suffer damage
Solution Approach 1:
The hearing device monitors its own temperature and charging state, then communicates this information back to the charging device via wireless data transmission. The charging device adjusts its energy output based on this feedback, reducing power when overheating is detected and maintaining optimal charging speed when safe, thus resolving the contradiction between fast charging and overheating prevention
Solution Approach 2:
The charging system dynamically adjusts the energy transfer rate based on real-time conditions. The charging device modifies its output power level according to the hearing device's current state (temperature, battery level, charging phase), transitioning between different charging modes (fast charging, normal charging, cooling mode) to balance speed and safety
2Reliability
If the charging system uses complex regulation mechanisms to control energy delivery, then device safety is improved, but the charging system complexity increases
Solution Approach 1:
The hearing device autonomously monitors its own charging state and temperature, then independently communicates its needs to the charging device. This self-service approach eliminates the need for complex regulation circuits within the hearing device, as the device itself manages its charging requirements through wireless communication, simplifying the overall system while maintaining safety
Solution Approach 2:
Wireless data transmission acts as an intermediary between the hearing device and charging device, allowing complex regulation logic to be implemented in the charging device rather than the hearing device. The communication channel carries control data that enables precise energy delivery without requiring complex hardware regulation in the small hearing device
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
This solution prevents overheating and damage to the hearing device, extends its lifespan, and allows for simplified charging compatibility across different models.
Implementation Method 1
a receiving coil for wireless charging of a battery in the hearing device
Data Source
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AI summary
A hearing device and a method for charging a hearing device is provided, the hearing device comprising an interface comprising a wireless transceiver configured for wireless communication with a charging device; and a power module comprising a charging controller and a receiving coil for wireless charging of a battery positioned in the hearing device; wherein the charging controller is configured to: obtain a first charging parameter; determine a primary charging scheme based on the first charging parameter; and transmit a primary charging indicator indicative of the primary charging scheme via the wireless transceiver