Bidet Warm Water Temperature Control With Stepped Heating Power
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Solution Overview
Problem
Conventional bidet systems struggle to precisely control the temperature of warm water, often resulting in overheating due to full power application or sudden power cutoffs, making it difficult to maintain the water at a set temperature for effective cleaning and user safety.
Innovation Solution
A method that involves detecting the current temperature of the warm water in the storage tank and gradually adjusting the power supplied to the heating unit based on the temperature difference from the target temperature, using stepped power adjustments (e.g., 60%, 80%, and 100%) to maintain the water at the desired temperature, and cutting power once the target is reached.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If full power is applied to the heating means when the current temperature is lower than the target temperature, then the heating speed is improved, but the temperature control precision deteriorates and overheating occurs
Solution Approach 1:
The patent applies dynamic control by adjusting the power supply intensity to the heating means based on real-time temperature feedback. Instead of using fixed full power or complete cutoff, the system dynamically modulates power levels (e.g., 60%, 80%, 100%) according to the temperature difference between current and target values, enabling both rapid heating and precise temperature maintenance
Solution Approach 2:
The patent implements a feedback control mechanism where the temperature sensor continuously monitors the water temperature and feeds this information back to the controller. The controller then adjusts the power supply to the heating means based on this feedback, creating a closed-loop system that prevents overheating while maintaining heating efficiency
2Object-affected harmful factors
If power is completely cut off when the current temperature exceeds the target temperature, then overheating is prevented, but the temperature stability deteriorates
Solution Approach 1:
The patent applies partial power cutoff rather than complete power interruption. When the temperature reaches or exceeds the target, the system cuts power completely, but when the temperature is close to the target (within a predetermined range), it applies reduced power levels (e.g., 60% or 80%) to maintain temperature stability and prevent excessive temperature fluctuations
Solution Approach 2:
The patent implements anticipatory control by monitoring when the temperature approaches the target value and preemptively adjusting power levels before the temperature can overshoot significantly. This cushioning effect prevents large temperature swings by preparing the system in advance for the upcoming temperature condition
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 approach allows for precise temperature control of the warm water, minimizing temperature deviations and preventing overheating, ensuring the water remains close to the set temperature for optimal performance and user safety.
Implementation Method 1
a heating means 3 for heating the water in the storage tank 2 to maintain the water at a certain temperature
Implementation Method 2
a temperature sensor 9 for detecting current temperature of the cleaning water stored in the storage tank 2
Data Source
AI summary
Provided is a method of controlling temperature of warm water of a bidet. The method includes: a first step of detecting a current temperature of warm water stored in a storage tank; a second step of gradually adjusting intensity of power supplied to a heating means depending on a difference when the current temperature of the warm water is lower than a target temperature; and a third step of cutting the power supplied to the heating means when the current temperature of the warm water is equal to the target temperature after the second step. Therefore, the warm water can be precisely maintained at a set temperature by checking a temperature of cleaning water in a storage tank using a sensor in real time, and gradually controlling intensity of power supplied to a heating means on the basis of the checked water temperature.