Inductive Hearing Aid Charging for Waterproof Sealed Housing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hearing aids with wired charging interfaces face issues such as inadequate sealing, reduced flexibility in design, increased mechanical wear, and limited usability in noisy or dusty environments due to the need for a mechanical charging interface.
Innovation Solution
A wireless charging hearing aid utilizing electromagnetic induction with a magnetic conductive sheet and receiving coil for non-contact charging, allowing for improved sealing, flexibility in design, and reduced mechanical wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical charging interface is used, then charging function is achieved, but sealing performance deteriorates and waterproofing is compromised
Solution Approach 1:
The patent removes the mechanical charging interface from the hearing aid body, extracting the problematic component that compromised sealing. Instead, a wireless charging coil is embedded in the housing, allowing charging without physical openings, thus maintaining complete waterproofing and dustproofing while preserving the charging function
Solution Approach 2:
The patent replaces the mechanical charging interface with an electromagnetic field-based wireless charging system. The mechanical plug and socket connection is substituted by electromagnetic induction between the hearing aid's receiving coil and an external charging device, eliminating mechanical wear and sealing vulnerabilities
2Reliability
If a charging interface is embedded in depth for fixing, then charging stability is improved, but design flexibility and volume optimization deteriorate
Solution Approach 1:
The patent extracts the deep-embedded charging interface structure and replaces it with a flat wireless charging coil embedded in the housing surface. This eliminates the need for deep cavities and complex internal routing, simplifying the internal structure while maintaining charging functionality
Solution Approach 2:
The patent transitions from a three-dimensional deep-embedded interface structure to a two-dimensional surface-mounted wireless coil. This dimensional change allows the charging function to be integrated into the housing surface without requiring deep internal spaces, thereby simplifying internal element arrangement
3Reliability
If a mechanical charging interface is used, then charging connection is achieved, but mechanical wear increases and service life deteriorates
Solution Approach 1:
The patent replaces the mechanical plug-and-socket charging connection with a wireless electromagnetic induction system. The receiving coil inductively couples with an external transmitting coil, transferring energy without physical contact, thereby eliminating mechanical wear on contacts and plugs while maintaining reliable charging connection
Solution Approach 2:
The patent introduces an electromagnetic field as an intermediary between the hearing aid and the external charging device. This field-based mediation enables energy transfer without direct mechanical contact, eliminating wear on physical interfaces while maintaining efficient power transfer
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
The wireless charging hearing aid achieves complete waterproofing and dustproofing, enhances usability in various environments, and extends the service life by eliminating the need for a physical charging interface, while allowing for more flexible and aesthetically pleasing design options.
Implementation Method 1
The electromagnetic induction technology is utilized in the wireless charging hearing aid to obtain an inductive current for charging a built-in battery
Implementation Method 2
a magnetic conductive sheet is used to shield an inductive magnetic field to prevent the inductive magnetic field negatively influencing other elements
Data Source
AI summary
A wireless charging hearing aid is disclosed, comprising a housing, an inner housing, a power management module, a circuit board and a control button. An electromagnetic induction technology is utilized in the disclosed to obtain an inductive current for charging a built-in battery. Elements within the housing do not need to be in contact with an external charging joint, the sealing of the housing is better, thereby achieving complete waterproofing and dustproofing, and improving the adaptability when using the disclosed. Besides, shapes and the number of layers of a receiving coil are flexibly designed according to requirements, and a magnetic conductive sheet is used to shield an inductive magnetic field to prevent the inductive magnetic field negatively influencing other elements. The elements within the housing can be arranged arbitrarily, which improves the flexibility in designing an overall appearance, and facilitates to incorporate artistic designs while reduces the design difficulties.