Pull-out Wand with Capacitive Sensor for Water Control
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Solution Overview
Problem
Conventional pull-out wands for faucets lack efficient control mechanisms for managing water flow and temperature, particularly in residential settings, and do not effectively utilize sensors to optimize user interaction.
Innovation Solution
A pull-out wand system integrated with sensors and a controller that allows for ON/OFF control, flow regulation, and temperature regulation, featuring a housing with moveable components, internal waterways, and sensors such as proximity and touch sensors to detect user presence and interaction, enabling intelligent water management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional pull-out wands are used without integrated sensors, then the device structure remains simple, but user interaction control and water management efficiency are insufficient
Solution Approach 1:
The patent combines multiple functions (proximity sensing, touch sensing, water flow control, temperature control) into a single integrated pull-out wand system. The sensor module is embedded within the wand housing, merging detection and control functions that were previously separate, thereby improving ease of operation while managing device complexity through functional integration.
Solution Approach 2:
The pull-out wand is designed as a multi-functional device that can detect user presence via proximity sensors, detect touch interactions via touch sensors, regulate water flow through integrated valves, and control water temperature. This universal design allows one device to perform multiple functions, improving ease of operation without requiring separate devices for each function.
2Productivity
If sensors are integrated into the pull-out wand, then water flow and temperature control is optimized, but device complexity increases
Solution Approach 1:
The system incorporates automatic detection and response mechanisms where sensors detect user presence and touch, and the controller automatically adjusts water flow and temperature without manual intervention. This self-service capability optimizes water management efficiency by responding dynamically to user needs while reducing the complexity of manual control mechanisms.
Solution Approach 2:
The patent implements feedback loops where sensors continuously monitor user presence and interaction, and the controller adjusts water flow and temperature based on this real-time feedback. This feedback mechanism optimizes water management efficiency by ensuring water is delivered only when needed and at the appropriate temperature, while the electronic feedback system is more space-efficient than mechanical alternatives.
3Loss of substance
If manual control mechanisms are used, then device structure remains simple, but water usage optimization and user experience are limited
Solution Approach 1:
The system automatically detects when a user needs water through proximity and touch sensors, and the controller automatically activates and regulates water flow accordingly. This self-service capability optimizes water usage by ensuring water is delivered only when and where needed, eliminating waste from manual control errors or delays, while the automatic control system replaces complex manual mechanisms.
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 provides enhanced user interaction and control over water flow and temperature, optimizing water usage and user experience by automatically adjusting based on sensor inputs, ensuring efficient and convenient operation.
Implementation Method 1
a capacitive sensor in communication with the controller and positioned to provide a capacitance signal in response to contact by a user with the water stream
Data Source
AI summary
A pull-out wand is disclosed for use with a water delivery device. The pull-out wand may include one or more sensors, such as a touch sensor and/or a proximity sensor.