Capacitive Touch Toy Overlay for Seamless Cleanable Input

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing interactive children's toys with capacitive touch sensing technologies face challenges in providing a seamless and easy-to-clean user input surface that minimizes interference from dirt and debris, while also offering engaging and educational experiences.

Innovation Solution

The integration of capacitive touch sensors with a smooth, continuous, and seamless user input surface made from natural or synthetic wood, which eliminates crevices and recesses, combined with an electronic processing system that generates responsive outputs such as sound, light, or motor activation, allowing for intuitive user interaction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional button or switch interface is used, then user input functionality is provided, but the surface has crevices and recesses where dirt and debris collect, making cleaning difficult

Engineering Contradiction:

Improveease of cleaningVSAvoiddirt and debris accumulation

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent replaces mechanical buttons and switches with capacitive touch sensors that detect changes in electrical capacitance when touched. This allows the surface to be completely smooth and seamless, eliminating physical crevices where dirt could accumulate, while still providing functional user input capability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent uses a thin, flexible overlay layer containing the capacitive touch sensor elements that can be applied over the smooth surface. This thin film structure maintains the seamless appearance and easy-clean properties while enabling touch sensitivity throughout the surface area.

Inventive Principle:

Principle #30Flexible shells and thin films

2Object-affected harmful factors

If capacitive touch sensors are integrated into the surface, then a seamless and easy-to-clean surface is achieved, but interference from dirt and debris may affect sensor performance

Engineering Contradiction:

Improvesurface smoothnessVSAvoidsensor accuracy

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The capacitive touch sensors are implemented as thin flexible films that can be applied directly to the smooth surface. This integration method ensures the sensors remain flush with the surface, preventing debris accumulation while maintaining sensor functionality through the thin film barrier.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The thin overlay layer acts as an intermediary between the smooth surface and the capacitive sensors. It protects the sensors from direct exposure to dirt and debris while still allowing capacitive coupling to occur, thus maintaining both surface smoothness and sensor reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If multiple layers (overlay, sensor, base) are used, then the capacitive touch device can be customized to various shapes and arrangements, but the device complexity increases

Engineering Contradiction:

Improvecustomization flexibilityVSAvoidlayer structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the overlay layer and sensor layer into a single integrated capacitive touch assembly that can be manufactured as one unit or pre-assembled module. This merging reduces the practical complexity of handling multiple separate layers while maintaining the versatility of customization for different shapes and arrangements.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The multi-layer structure is designed as a universal platform that can be adapted to various toy shapes and configurations. The same basic layer architecture (overlay, sensor, base) serves multiple customization purposes through different patterns, sizes, and arrangements of the capacitive sensor elements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

This solution provides a durable and easy-to-clean interactive surface that enhances user engagement and educational experiences by allowing seamless capacitive touch input, reducing interference from debris and improving the overall functionality and durability of the toys.

Implementation Method 1

capacitive touch sensors configured to sense user input through the user input panel

Methodology Applied

Scientific EffectCapacitance: Capacitance

Data Source

PatentUS11182030B2Toys with capacitive touch features

Publication Date: 2021.11.23 KIDS II HAPE JOINT VENTURE LTD

AI summary

A children's toy with capacitive touch interactivity. The children's toy generally includes a user input overlay panel and one or more capacitive touch sensors. The overlay panel may be formed from a capacitive touch conductive natural organic material such as wood. The toy can be shaped and ornamented to resemble a musical instrument, and configured to play music in response to user input applied to the user input overlay panel and sensed by the capacitive touch sensors.