Bidet Flow Path Guide Tank Design for Even Water Heating
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Solution Overview
Problem
Conventional bidet heating systems suffer from uneven water heating and low heating efficiency due to limited contact area and time between water and the heating element, leading to unheated water being supplied when not all water passes through the heater.
Innovation Solution
A hot water system for a bidet featuring a flow path guide tank with a slope portion and flow path guide hole to increase contact area and time between water and a sheath heater, along with a control unit to manage temperature and a safety device for protection, ensuring efficient heating and safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If water is heated only around a heater provided inside the tank, then the heating structure is simple, but the water inside the tank is not heated evenly and heating efficiency is low
Solution Approach 1:
The tank is divided into a water inlet space and a heating space, with water flowing through a defined path that passes by the heater. This segmentation ensures all water contacts the heater while maintaining a simple heating structure.
Solution Approach 2:
A flow path guide hole is introduced as an intermediary structure to direct water flow through the heating space. This mediator ensures even heating by guiding water to contact the heater uniformly without complicating the overall heating structure.
2Device complexity
If a plate-shaped electrode is used to heat water by direct contact, then the heating structure is simple, but the contact area between water and electrode is significantly low and heating efficiency is remarkably lowered
Solution Approach 1:
The electrode is changed from a flat plate shape to a curved or cylindrical shape that wraps around or extends into the water flow path. This curvature increases the surface area contact between the electrode and water, improving heating efficiency while keeping the structure relatively simple.
Solution Approach 2:
The electrode is extended into the third dimension by creating a three-dimensional structure (such as a cylindrical or spiral shape) rather than a two-dimensional plate. This dimensional change significantly increases the contact area with water flowing through the tank.
3Device complexity
If water flows directly through the heating device without passing through the heater, then the flow path is simple, but water is supplied in an unheated state
Solution Approach 1:
The flow path is designed so that water specifically passes through a localized heating zone where the heater is positioned. This localized quality control ensures water is heated reliably while maintaining a simple overall flow path structure through strategic placement of heating elements.
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 reduces hot water waiting time by ensuring all water is heated efficiently and safely, with the ability to preheat and maintain user-set temperatures, enhancing user experience and reducing installation and maintenance costs.
Implementation Method 1
a sheath heater (140) provided in the housing (110) and configured to heat water discharged from the flow path guide tank (130)
Implementation Method 2
a flow path guide hole (135) formed through in an upward direction so that water introduced into the water inlet pipe (112) flows into an upper portion inside the housing (110) and exchanges heat with the sheath heater (140)
Data Source
AI summary
A hot water system for a bidet having a housing is provided. The hot water system includes: a water inlet pipe connected to a faucet; a flow path guide tank located at a lower portion in the housing so that water introduced into the water inlet pipe flows; a sheath heater provided in the housing and configured to heat water discharged from the flow path guide tank; and a water outlet pipe configured to supply water heated by the sheath heater to the outside. The flow path guide tank has a flow path guide hole formed through in an upward direction so that water introduced into the water inlet pipe flows into an upper portion inside the housing and exchanges heat with the sheath heater.