Replaceable Brush Head With Piezoelectric Audio Diaphragm
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Solution Overview
Problem
Conventional electric toothbrushes lack innovative designs for maintaining effectiveness and environmental sustainability, particularly in replacing worn-out components and providing enhanced brushing experiences through integrated audio features.
Innovation Solution
A brush design featuring a head with bristles, a diaphragm, and a piezoelectric element that vibrates upon a non-discrete signal in the audible range, allowing for replaceable components and integrated music playback, enhancing brushing efficacy and user engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire toothbrush is replaced when bristles wear out, then cleaning effectiveness is maintained, but material waste increases and environmental sustainability deteriorates
Solution Approach 1:
The toothbrush is divided into separable components: a reusable body containing the circuit and vibration source, and a replaceable head containing the bristles. This segmentation allows only the worn bristle portion to be discarded while the main body is retained and reused, directly reducing material waste while maintaining cleaning effectiveness through replacement of the functional brush head assembly
2Ease of manufacture
If conventional electric toothbrushes are designed as single integrated units, then manufacturing is simple, but adaptability and user engagement are limited
Solution Approach 1:
The toothbrush body is designed as a universal platform that can accommodate different brush head assemblies through standardized attachment mechanisms. The integrated circuit and vibration source serve multiple functions: driving the bristles for cleaning and playing audible range signals for user engagement. This multi-functionality approach enhances adaptability without significantly complicating manufacturing
Solution Approach 2:
The system transitions from static, fixed functionality to dynamic, adaptable functionality by enabling easy replacement of brush heads and integration of audio feedback. The vibration source can dynamically adjust its operation based on the attached brush head type, and the audible signal provision dynamically responds to user interaction, creating a more versatile and engaging user experience
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 design provides a durable, environmentally friendly toothbrush with improved brushing efficiency and user experience through replaceable parts and integrated audio features, enhancing both functionality and sustainability.
Implementation Method 1
a vibration source that is attached to the diaphragm and vibrates in accordance with a non-discrete signal in an audible range
Data Source
AI summary
A brush includes a head and a body. The head includes bristles, a diaphragm, and a vibration source attached to the diaphragm. The head is attached to the body. The body includes a circuit configured to supply to the vibration source a supply signal including a non-discrete signal in the audible range.