Modular Toothbrush with Capacitive Sensor and Micro-Suction Storage

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Solution Overview

Problem

Conventional toothbrushes lack customization options for design, motor modes, and storage, with limited user control over brushing time, motor speed, and exposure to water and contaminants due to mechanical switches.

Innovation Solution

A modular toothbrush design with customizable exterior, touchless motor activation using capacitive sensors or accelerometers, and micro-suction tape for vertical storage, allowing users to personalize features like RPM, brushing duration, and mounting on surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a mechanical switch is used to activate the motor, then the toothbrush can be turned on and off, but moving parts create weaknesses that allow water and contaminants to infiltrate the motor

Engineering Contradiction:

Improvesealing against water and contaminantsVSAvoidmechanical switch with moving parts

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical switch with a capacitive touch sensor that has no moving parts. The capacitive sensor detects user input through changes in electrical capacitance when touched, activating the motor without requiring any mechanical components that could compromise the seal. This eliminates the vulnerability point where water and contaminants could infiltrate the motor.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If conventional electric toothbrushes offer fixed motor speed levels, then the toothbrush can operate at predetermined speeds, but users cannot customize the motor speed to their exact preference

Engineering Contradiction:

Improvemotor speed customizationVSAvoiduser interface for speed selection

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a dynamic motor speed control system where the motor speed can be adjusted in real-time based on user input. The capacitive touch sensor allows users to cycle through different speed levels during operation, and the system dynamically adjusts the motor RPM to match user preference. This creates an adaptive brushing experience rather than a fixed one.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent allows users to change the operational parameters of the toothbrush, specifically the motor speed (RPM), to suit their preferences. The system stores and recalls different speed settings, enabling users to select from multiple predetermined speed levels or customize their preferred speed for different brushing scenarios.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If conventional toothbrushes have a fixed timer duration, then the toothbrush automatically turns off after a predetermined time, but users cannot customize the brushing duration to their needs

Engineering Contradiction:

Improvebrushing duration customizationVSAvoidtimer customization interface

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a dynamic timer system where the brushing duration can be adjusted by the user. The capacitive touch sensor enables users to select from multiple timer duration options (e.g., 30 seconds, 1 minute, 2 minutes) or customize their preferred duration. The system dynamically adapts the automatic shut-off time based on user selection, allowing flexibility in brushing habits.

Inventive Principle:

Principle #15Dynamics

4Adaptability or versatility

If the toothbrush head is permanently attached to the handle, then the structure is simple, but the handle cannot be removed and replaced with different designs

Engineering Contradiction:

Improvehandle replacement capabilityVSAvoidlocking mechanism

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the toothbrush into separable components: a head portion and a handle portion, connected by a locking mechanism. This segmentation allows the handle to be removed and replaced with different designs while keeping the head portion intact. The locking mechanism enables secure attachment during use but allows easy separation for handle replacement, providing customization options without excessive complexity.

Inventive Principle:

Principle #1Segmentation

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

Enhances user experience with customizable aesthetics and functionality, improved sealing against water and contaminants, and efficient storage, reducing clutter and promoting hygiene.

Implementation Method 1

micro-suction tape for vertical storage, allowing users to personalize features like RPM, brushing duration, and mounting on surfaces

Methodology Applied

Scientific EffectSuction: Suction

Implementation Method 2

touchless motor activation using capacitive sensors or accelerometers

Methodology Applied

Scientific EffectCapacitive sensing: Capacitance

Implementation Method 3

touchless motor activation using capacitive sensors or accelerometers

Methodology Applied

Scientific EffectAcceleration detection: Accelerometer

Data Source

PatentUS12150827B2Toothbrush

Publication Date: 2024.11.26 QUIP NYC INC

AI summary

A toothbrush, including a head portion, a handle portion, a locking mechanism configured to lock said head portion to said handle portion, a capsule including a motor assembly and power supply, the capsule being configured to be received within said handle portion, and at least one communication connection configured to enable said toothbrush to communicate with one or more external computing devices.