Toilet Seat Hinge Venting for Low-Energy Odor Removal
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Solution Overview
Problem
Conventional bathroom exhaust fans are energy inefficient and noisy, and they do not effectively target odors from toilets and portable commodes, especially in situations where a dedicated exhaust fan is not available.
Innovation Solution
An odor-removing hinge system that includes an integrated housing acting as a conduit to exhaust air and noxious gases from toilet bowls, using hollow bolts, connective tubing, and a brushless fan motor, which can be powered by minimal electrical energy and automatically activated by a magnetic switch or remote control, with an optional air filter assembly for enhanced odor removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional exhaust fan is used to ventilate a bathroom, then odors can be removed from the entire bathroom volume, but substantial electrical power is consumed and energy efficiency deteriorates
Solution Approach 1:
The invention extracts the odor removal function from the general bathroom ventilation system. Instead of ventilating the entire bathroom volume, the system specifically targets and removes odors only from the toilet bowl area, thereby achieving effective odor control with minimal energy consumption.
Solution Approach 2:
The system applies local quality by creating a focused airflow path that specifically addresses the odor source at the toilet bowl. The exhaust fan is positioned to create a localized negative pressure zone around the toilet bowl, directing airflow specifically at the odor source rather than treating the entire bathroom space uniformly.
2Object-affected harmful factors
If a conventional exhaust fan operates for several minutes to remove entire bathroom air volume, then odors are eliminated, but operation time increases and noise is generated
Solution Approach 1:
The system extracts the odor removal function from general bathroom ventilation, targeting only the toilet bowl area. This focused approach eliminates odors rapidly without requiring prolonged operation to ventilate the entire bathroom volume.
Solution Approach 2:
The system employs periodic action by activating the exhaust fan only during specific periods - when the toilet is in use or immediately after use. The magnetic switch automatically activates the fan when the toilet seat is raised and deactivates it when the seat is lowered, avoiding continuous operation and reducing noise exposure.
3Object-affected harmful factors
If a conventional exhaust fan is installed in the ceiling, then bathroom ventilation is achieved, but the fan is positioned far from the toilet and cannot generate specific airflow to carry away odors from the toilet area
Solution Approach 1:
The system changes the spatial dimension of odor removal by positioning the exhaust fan in the vertical plane above the toilet bowl rather than in the horizontal ceiling plane. This vertical positioning creates a direct upward airflow path that efficiently captures and removes odors from the toilet bowl area.
Solution Approach 2:
The exhaust fan is positioned to create a localized negative pressure zone specifically around the toilet bowl, directing airflow specifically at the odor source. This localized approach ensures effective odor removal without requiring complex ductwork or remote positioning.
4Object-affected harmful factors
If a ceiling exhaust fan is used to remove odors, then odor elimination is achieved, but heated or cooled air is exhausted to the exterior and energy efficiency deteriorates
Solution Approach 1:
The system extracts odor removal from general bathroom ventilation, targeting only the toilet bowl area. This focused approach removes odors without requiring the removal of large volumes of conditioned air from the entire bathroom, thereby reducing energy loss.
Solution Approach 2:
The fan operates periodically only during toilet use rather than continuously, reducing the total volume of conditioned air that is exhausted. The magnetic switch controls operation based on actual need, minimizing energy waste from unnecessary ventilation.
5Ease of operation
If a portable commode is used by elderly or disabled persons, then toilet accessibility is improved, but odors cannot be flushed away and odor control becomes more problematic
Solution Approach 1:
The system extracts the exhaust function directly to the portable commode unit, positioning the exhaust fan and housing on the commode itself. This allows odors to be removed at the source without requiring connection to building ventilation infrastructure, making it ideal for portable commodes used in bedrooms or living areas.
Solution Approach 2:
The system introduces an intermediary exhaust mechanism between the portable commode and the room environment. The exhaust fan creates a controlled airflow path that captures odors at the commode opening and directs them away from the living space, mediating the interaction between the commode and the surrounding environment.
6Object-affected harmful factors
If a Shay apparatus is installed by disassembling the flush tank and interposing the apparatus between the flush tank and toilet base, then ventilation is achieved, but installation complexity increases and ease of installation deteriorates
Solution Approach 1:
The system merges the exhaust fan, housing, and magnetic switch into a single integrated assembly that attaches to the toilet seat hinge mechanism. This unified design eliminates the need to disassemble the flush tank or modify the toilet base, allowing simple installation by replacing the hinge assembly.
Solution Approach 2:
The hinge assembly serves multiple functions: it provides the mechanical hinge connection between seat and bowl, houses the exhaust fan, contains the magnetic switch, and directs airflow. This multi-functional design consolidates several components into one universal assembly that works with standard toilet configurations.
7Object-affected harmful factors
If a Quaintance apparatus with battery pack, timer circuit, and activated charcoal filter is used, then odor removal is achieved, but the apparatus lacks hinge plate segments to adjust to toilet seats of different sizes and adaptability deteriorates
Solution Approach 1:
The hinge assembly is segmented into multiple adjustable components, including hinge plates with multiple mounting positions and adjustable arm lengths. This segmentation allows the system to be configured to fit various toilet seat sizes and shapes, providing adaptability across different toilet models.
Solution Approach 2:
The system incorporates dynamic adjustment capabilities through movable hinge plates and adjustable mounting positions. Users can reconfigure the hinge assembly to match different toilet seat geometries, making the system adaptable rather than fixed in a single configuration.
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 provides efficient and quiet odor removal with significantly reduced energy consumption compared to traditional exhaust fans, suitable for both standard toilets and portable commodes, and can be easily installed or retrofitted.
Implementation Method 1
a brushless fan motor, which can be powered by minimal electrical energy
Implementation Method 2
automatically activated by a magnetic switch
Implementation Method 3
using hollow bolts, connective tubing, and a brushless fan motor
Data Source
AI summary
An odor-removing hinge system and method of use for withdrawing noxious odors from toilets and portable commodes is disclosed. The present seat hinge system includes an integrated housing that functions as a portion of an exhaust pathway for noxious gases expelled within the toilet bowl. The present hinge system includes at least one hollow bolt disposed in fluid communication with the housing, which is used to secure the toilet seat to the toilet. In one embodiment the noxious gases within the toilet bowl are carried by convection or vacuum via connective tubing to an exhaust conduit installed in an adjacent wall. In other embodiments the noxious gases are directed through a detachable air filter assembly secured to the housing and the odorless filtered air is recirculated. In a method of use the present hinge system is retrofitted to existing toilets and portables commodes in replacement of standard toilet seat hinges.