Self-generating bidet with integrated power generation and control
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Solution Overview
Problem
Conventional self-generating bidets face challenges such as insufficient power generation, exposure of wiring, high standby power consumption, and inability to function without a water tank, leading to inefficiencies and limited adoption.
Innovation Solution
A self-generating bidet design that includes a generator and charging unit within a bidet housing, using water flow to generate power, with a controller managing power distribution and valve operation to minimize consumption and ensure functionality without external power, and capable of operating with or without a water tank.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a generator is directly installed at a pipe connecting a water tank to a water inlet, then power can be generated using water pressure, but many efforts and difficulties are caused in installing the generator and connecting wiring to a charging unit
Solution Approach 1:
The patent combines the generator, charging unit, and control unit into an integrated assembly that is pre-mounted on the bidet seat. This merging of components eliminates the need for complex field installation and wiring connections, as the entire power generation system is installed as a single unit during bidet seat installation.
Solution Approach 2:
The system automatically generates power using water flow from the water inlet and stores it in the charging unit without requiring external intervention. The control unit automatically manages the power generation process, making the system self-sufficient and eliminating complex installation procedures for wiring and connections.
2Power
If the charging unit storing electricity generated from the generator is disposed in the main body of the bidet, then power can be stored, but the wiring electrically connecting the generator to the charging unit is exposed to the outside
Solution Approach 1:
The generator and charging unit are nested within the bidet seat housing, with the generator positioned to receive water flow and the charging unit embedded in the seat structure. This nesting arrangement conceals all wiring connections inside the bidet seat, preventing exposure to the outside environment and eliminating safety hazards.
3Ease of operation
If standby power is supplied to various kinds of electric devices, then the bidet can be operated, but considerable amounts of power are wasted since the overall time taken in the use of the bidet is very small
Solution Approach 1:
The control unit implements periodic action by supplying power to electric devices only during actual bidet usage periods. The system activates components such as the water injection mechanism and heating elements only when needed, and shuts them off during non-usage periods, thereby eliminating continuous standby power consumption while maintaining full operability during use.
4Stress or pressure
If the flux control valve controls the opening and closing rate of the valve by driving a motor, then water injecting pressure can be controlled, but a considerable amount of power is consumed
Solution Approach 1:
The patent replaces the motor-driven flux control valve with a passive mechanical valve system that utilizes water pressure differential and elastic elements to automatically regulate flow rate and injection pressure. This mechanical substitution eliminates the need for continuous motor power while maintaining precise control over water injection parameters through pressure-based regulation.
5Device complexity
If power is generated using only the water supplied to the water tank, then the system is simple, but the generating capacity is insufficient
Solution Approach 1:
The generator is designed to serve multiple functions: it generates power not only from water supplied to the water tank but also from water flow during bidet operation. This multi-functionality allows the same generator component to contribute to power generation in various operational modes, increasing overall generating capacity without adding separate power generation systems.
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 bidet achieves stable operation with sufficient power generation, reduced wiring exposure, minimized power consumption, and compatibility with toilets lacking a water tank, enhancing usability and efficiency.
Implementation Method 1
a generator generating power through the water introduced into the water inlet
Data Source
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AI summary
There is provided a self-generating bidet that can perform power-generation using water supplied to the bidet or a water tank. The self-generating bidet, injecting water through a nozzle part, includes a water inlet into which water is introduced; a generator generating power through the water introduced by the water inlet; a charging unit storing electricity generated from the generator; and a nozzle passage part provided between the generator and the nozzle part to supply the water passing through the generator to the nozzle part. The self-generating bidet further includes a controller controlling the generator to be driven by opening a passage of the nozzle passage part in order to allow the water to be discharged through the nozzle part when a voltage of the charging unit is lower than a predetermined reference voltage.