Flush Toilet Controller Positioning for Tank Reliability
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Solution Overview
Problem
Conventional flush toilets face challenges in achieving a low silhouette design while maintaining adequate tank capacity and ensuring the reliability of the controller, which is prone to water exposure and excessive weight loads due to limited installation space behind the toilet main body.
Innovation Solution
The flush toilet design includes a controller positioned on the outer upper surface of the storage tank, allowing for reduced overall size and enhanced protection from water and weight loads, with a left-right asymmetrical storage tank configuration to optimize space usage and a holding member to house the controller effectively, preventing water exposure and facilitating maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the storage tank is disposed behind the toilet main body to achieve low silhouette design, then the overall size of the flush toilet is reduced, but the tank capacity is insufficient
Solution Approach 1:
The storage tank is positioned above the floor surface and behind the private part washing device, utilizing vertical space rather than only horizontal space. This three-dimensional positioning allows the tank to occupy the upper rear portion of the installation space, effectively increasing tank capacity while maintaining a compact overall footprint and achieving low silhouette design.
Solution Approach 2:
The storage tank is nested within the limited installation space behind the toilet main body, specifically positioned above the floor surface and behind the private part washing device. This nested arrangement allows the tank to fit into the available space efficiently, maximizing tank capacity within the constrained rear installation area without increasing the overall toilet size.
2Device complexity
If the controller is disposed inside the storage tank to save space, then the device complexity is reduced, but the reliability of the controller is compromised due to water exposure and weight loads
Solution Approach 1:
The controller is extracted from the interior of the storage tank and disposed on the outer upper surface of the storage tank. This separation removes the controller from the water-containing environment inside the tank, protecting it from water exposure and excessive weight loads while maintaining compact overall design and not significantly increasing device complexity.
3Quantity of substance
If the storage tank is positioned to maximize capacity in the limited rear space, then the tank capacity is increased, but the controller becomes vulnerable to water leakage and weight loads
Solution Approach 1:
The outer upper surface of the storage tank serves as an intermediary location for the controller, separating it from the harmful environment inside the tank. This positioning allows the controller to be close to the tank for space efficiency while being protected from water leakage and weight loads that would affect reliability.
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 design reduces the overall size of the flush toilet while securing a larger tank capacity and improving the reliability of the controller by preventing water exposure and protecting it from external loads, making it easier to access and maintain.
Implementation Method 1
a pump configured to feed the flush water in the storage tank to the toilet main body
Data Source
AI summary
A flush toilet includes a toilet main body, a tank device provided behind the toilet main body, and a private part washing device configured to wash a private part of a user, the private part washing device being provided on a rear upper surface of the toilet main body behind the bowl. The tank device includes a water supply part configured to supply flush water supplied from a water supply source, a storage tank for storing the flush water supplied from the water supply part, the storage tank being located behind the private part washing device and above a floor surface, a pump configured to feed the flush water in the storage tank to the toilet main body, and a controller configured to control operation of the water supply part and the pump, and the controller is disposed on an outer upper surface of the storage tank.