Arc-Shaped Behind-Ear Hearing Aid for Stable Earplug Fit
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Solution Overview
Problem
Existing behind-the-ear hearing aids suffer from frequent dislodging of the earplug due to the thin and soft wire connection, leading to inconvenience and discomfort.
Innovation Solution
A behind-the-ear hearing aid design featuring an arc-shaped hanging rod with a sound tube and a detachable battery module, combined with a charging box that includes a storage and charging slot system, along with a wireless communication unit and a display screen, enhances stability and convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a thin and soft wire is used to connect the earplug to the main unit, then the hearing aid is flexible and comfortable to wear, but the earplug frequently dislodges and cannot be effectively restricted
Solution Approach 1:
The patent employs an arc-shaped hanging rod with a specific curvature radius to match the contour of the human ear. This curved structure allows the hearing aid to conform to the ear's shape, providing both comfort and stable positioning. The arc-shaped design replaces the traditional thin wire connection, maintaining flexibility while preventing earplug dislodging through geometric conformity to the ear's natural curve.
2Reliability
If the hanging rod is made rigid to prevent dislodging, then the earplug stability improves, but the comfort and ease of wearing decreases
Solution Approach 1:
The patent optimizes the curvature radius of the arc-shaped hanging rod as a key parameter. By carefully selecting the radius value, the design achieves a balance between rigidity for stability and flexibility for comfort. The specific curvature parameter allows the rod to maintain its shape for secure positioning while remaining adaptable to the ear's contours, resolving the contradiction between stability and comfort.
3Reliability
If the wire connection is made stronger to restrict the earplug, then the earplug stability improves, but the flexibility and comfort deteriorates
Solution Approach 1:
The arc-shaped hanging rod with optimized curvature radius provides structural strength without requiring a thick or rigid wire. The curved geometry distributes mechanical stresses efficiently, allowing the rod to maintain earplug stability while remaining flexible and comfortable. This geometric solution replaces the need for stronger wire materials, achieving stability through shape rather than material strength.
Data Source
AI summary
A behind-the-ear hearing aid includes a right ear hearing aid and a left ear hearing aid, each of which includes a hanging rod and a battery module. The hanging rod has an arc-shaped structure, and a top of the battery module is provided with an output port. The bottom of the hanging rod has a first guiding rod that is inserted into the output port. Arranged inside the hanging rod are a main control circuit board and a sound adjustment button. The arc-shaped structure of the hanging rod facilitates hanging of the right and left ear hearing aids on the ears of a user, with the sound tube being inserted into the ear auricle of the user. The arc-shaped structure of the hanging rod increases the stability of the hearing aids on the ears, preventing them from falling out easily.