Adaptive Toothbrush Motion Range to Prevent Tooth Hitting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electric toothbrushes often hit the teeth due to a fixed maximum rotation angle of the brush head, affecting oral health and user experience.
Innovation Solution
A toothbrush with a motor that adjusts the rotation range of the brush head based on oral health data and real-time brushing data, using an electric limit method to prevent hitting and enhance cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the brush head uses a fixed maximum rotation angle, then the structure is simple and easy to manufacture, but the brush head hits the teeth causing harm to oral health
Solution Approach 1:
The patent applies the dynamics principle by replacing the fixed rotation angle mechanism with an adjustable one. The control module dynamically modifies the rotation angle of the brush head based on real-time detection of oral health conditions and brushing data, allowing the system to adapt its motion characteristics to prevent tooth hitting while maintaining cleaning effectiveness.
Solution Approach 2:
The patent implements parameter changes by varying the rotation angle parameter of the brush head according to detected oral health conditions. When conditions indicate sensitivity or risk of tooth hitting, the control module reduces the rotation angle. When cleaning needs are identified, the rotation angle is increased, thus optimizing the balance between safety and cleaning performance.
2Object-affected harmful factors
If the brush head rotation angle is reduced to prevent hitting teeth, then oral health is protected, but cleaning effectiveness decreases
Solution Approach 1:
The system dynamically adjusts the rotation angle based on real-time feedback from oral health detection and brushing data analysis. When the brush head approaches areas prone to tooth hitting, the control module reduces the rotation angle to prevent damage. When the brush head is in safer zones or when cleaning needs are identified, the rotation angle is increased to maintain cleaning effectiveness.
Solution Approach 2:
The patent employs feedback mechanisms where the control module continuously monitors oral health conditions and brushing data, then uses this information to adjust the brush head's rotation angle in real-time. This closed-loop control ensures that the rotation angle is optimized at each moment to balance tooth protection and cleaning performance based on actual usage conditions.
3Object-affected harmful factors
If the rotation angle is adjusted based on oral health data, then tooth hitting is prevented, but the control system becomes more complex
Solution Approach 1:
The control module is designed to perform multiple functions: it processes oral health detection data, analyzes brushing data, determines appropriate rotation angles, and controls the brush head motor. By consolidating these functions into a single integrated control module, the patent reduces overall system complexity compared to having separate dedicated components for each function, while still achieving adaptive tooth protection.
Data Source
AI summary
A control method of a toothbrush, a control device of the toothbrush, the toothbrush and a computer-readable storage medium are provided. The toothbrush includes a brush head and a handle. A motor is disposed in the handle. The motor includes a rotor. The control method includes obtaining oral health data and/or real-time brushing data; determining a target motion range corresponding to the rotor of the motor according to the oral health data and/or the real-time brushing data; and controlling the rotor to reciprocate in a circumferential direction within the target motion range to drive the brush head to brush teeth.