Induction Faucet Mode Switching During Sensor or Power Failure
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Solution Overview
Problem
Infrared induction control boxes for faucets require manual switching to a mechanical mode when batteries are discharged, leading to a complex structure and increased costs due to the need for additional switch valves, and they cannot function without power.
Innovation Solution
An induction faucet with a switch that automatically or manually transitions from an automatic switch mode to a manual mechanical mode when the sensor or solenoid valve detects insufficient voltage, using a control program and indicator light to manage power levels and switch modes, eliminating the need for a separate switch valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a manual switch valve is added to enable manual mechanical mode when power is lost, then the faucet can function without power, but the structure becomes complex and cost increases
Solution Approach 1:
The patent combines the manual switch valve with the existing solenoid valve assembly, integrating both automatic and manual control functions into a single unified structure. The manual switch valve is positioned to work in conjunction with the solenoid valve, allowing the same valve body to serve both automated and manual operation modes, thereby avoiding the need for completely separate valve systems.
Solution Approach 2:
The solenoid valve assembly is designed to perform multiple functions: it operates automatically when powered (controlled by the sensor system) and manually when power is lost (controlled by the manual switch valve). This multi-functional design allows a single valve system to handle both induction control and traditional manual operation, reducing overall system complexity despite adding manual capability.
2Reliability
If a manual switch valve is added to enable manual mechanical mode when power is lost, then the faucet can function without power, but the cost increases due to additional components
Solution Approach 1:
The manual switch valve is integrated with the solenoid valve assembly, sharing common components such as the valve body, seat, and sealing elements. This merging approach reduces the total number of parts that need to be manufactured and assembled, thereby lowering manufacturing costs despite adding manual operation capability.
Solution Approach 2:
The unified valve assembly serves dual purposes (automatic and manual control), maximizing the utilization of each component. By designing the manual switch valve to work within the existing solenoid valve framework, the patent avoids duplicating expensive components, thus controlling manufacturing costs while ensuring reliability during power outages.
3Device complexity
If the faucet operates in automatic switch mode only, then the structure is simple, but the faucet cannot supply water when power is lost
Solution Approach 1:
The control system is designed to be dynamic, automatically adapting its operation mode based on power availability. When power is present, the system operates in automatic switch mode with the solenoid valve controlled by the sensor. When power is lost, the system dynamically transitions to manual mode, allowing the manual switch valve to take over control, thus maintaining water supply capability throughout.
Solution Approach 2:
The system changes its operational parameters based on power status. In powered mode, the solenoid valve is electrically actuated for automatic control. In power-loss mode, the manual switch valve is mechanically actuated for manual control. This parameter change approach allows the same physical infrastructure to support both automated and manual operation without requiring completely separate 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
Enables the induction faucet to function as a traditional faucet even without power, reducing costs and complexity by allowing a simple switch to manual mode when batteries are discharged, ensuring continuous water supply.
Implementation Method 1
a solenoid valve, which is arranged on a water outlet path of the faucet, and is connected with the sensor
Implementation Method 2
An induction control box is a control box that is electrically connected to a sensor to realize non-contact induction control
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The disclosure discloses a switch (215) configured to switch an on-off state of a liquid flow conduit to a working mode controlled by a mechanical valve when an induction control component is detected not to be in a working state. The disclosure further discloses an induction control box (200) including the switch (215), and an induction faucet (100) including: a faucet (100) having a automatic switch mode and a manual switch mode; a sensor (102) arranged on the faucet (100); a solenoid valve (206) arranged on a water output path and connected with the sensor (102), wherein when the sensor (102) and solenoid valve (206) are in a working state, the faucet (100) supplies water by automatic switch mode; and a switch (215) configured to switch the faucet (100) from the automatic switch mode to manual switch mode when the sensor (102) and/or the solenoid valve (206) are detected not to be in the working state.