Toilet Seat Ventilation System with Integrated Odor Processing Unit

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Solution Overview

Problem

Existing toilet seat ventilation systems lack a compact, integrated solution that provides high-performance odor removal without requiring external exhaust systems or modifications to the toilet bowl, often failing to effectively manage odors and vapors.

Innovation Solution

A compact integrated toilet seat ventilation system comprising a toilet seat, lid, and an odor processing unit with a fan, filters, and sensors, where the odor processing unit is integrated into the lid, featuring suction points and exhaust mouths strategically located to optimize airflow within the toilet bowl, and includes antimicrobial means, sensors, and a battery-operated design for self-sufficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a conventional ventilation system connected to external room exhaust systems is used, then sufficient power for odor extraction is achieved, but device complexity and installation requirements increase

Engineering Contradiction:
Improveextraction powerVSAvoidsystem complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The patent combines the ventilation system components (fan, extraction channels, exhaust mouths, suction points) directly into the toilet seat assembly, merging previously separate ventilation infrastructure with the toilet seat itself. This integration eliminates the need for external exhaust system connections while maintaining effective odor extraction capability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The toilet seat is designed to perform multiple functions: it provides the primary seating function while simultaneously serving as the housing and operational components for the ventilation system. The seat structure itself becomes both the user interface and the ventilation system boundary, eliminating separate ventilation infrastructure

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Device complexity

If ventilation systems are integrated into the toilet seat, then device complexity is reduced, but extraction power decreases

Engineering Contradiction:
Improvesystem integrationVSAvoidextraction power
Core Design Contradiction:
Device complexityVSPower

Solution Approach 1:

The patent employs dynamic control of the fan operation, allowing it to adjust its extraction power based on operational conditions. The system can operate at higher power levels when needed (such as during toilet usage) while maintaining integration within the seat structure, thus achieving both compact integration and sufficient extraction capability

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If existing toilet bowls are used without modifications, then ease of installation is improved, but ventilation effectiveness may be compromised

Engineering Contradiction:
Improveinstallation easeVSAvoidventilation effectiveness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The ventilation system is designed to be self-contained within the toilet seat assembly, requiring no external modifications to the toilet bowl or plumbing infrastructure. The system serves itself by using the seat's own structure to define the ventilation boundaries and contain the airflow paths, eliminating installation complexity while maintaining effectiveness

Inventive Principle:
Principle #25Self-service

4Productivity

If suction points and exhaust mouths are strategically positioned, then airflow optimization is achieved, but device complexity increases

Engineering Contradiction:
Improveairflow efficiencyVSAvoidstructural complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements different functional zones within the toilet seat structure: suction points are positioned at specific locations to capture odors, while exhaust mouths are positioned elsewhere to release filtered air. Each region of the seat is optimized for its specific function, creating effective airflow patterns through localized functional differentiation rather than complex overall structure

Inventive Principle:
Principle #3Local quality

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 system effectively removes odors and vapors from the toilet bowl area, maintaining a clean environment without external exhaust systems and allowing for easy retrofitting onto existing toilets, with optimized airflow and antimicrobial properties enhancing odor elimination.

Implementation Method 1

a fan configured to couple in air seal communication with the extraction channel and to draw odorous air released when a person uses the toilet via the filter into an exhaust

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Implementation Method 2

the odor processing unit comprises at least one filter and a fan configured to couple in air seal communication with the extraction channel and to draw odorous air released when a person uses the toilet via the filter into an exhaust

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP3903656B1Toilet seat ventilation system
Publication Date: 2023.09.20 GODDERIE PATRICK
  • EP3903656B1 patent drawingFigure 1
  • EP3903656B1 patent drawingFigure 2
  • EP3903656B1 patent drawingFigure 3A

AI summary

The present invention relates to the field of toilet seats. More specifically it concerns a replacement to a conventional toilet seat with enhanced functionalities. The toilet seat has an odor processing unit (24) integrated in the toilet lid, with suction points and exhausts in the toilet seat.