Inductive Switching Valve With Magnetic Status Feedback

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Solution Overview

Problem

Conventional mechanical switching valves in faucets cannot automatically feed back their switching status, limiting the control and coordination with solenoid valves and luminous components, which hampers user experience.

Innovation Solution

An inductive switching valve is designed with a valve body, valve core assembly, rocker arm, and a switching feedback unit that includes a magnetic assembly and sensor, allowing the valve to automatically detect its switching state through changes in magnetic field intensity as the rocker arm moves between positions, generating a corresponding signal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a conventional mechanical switching valve is used, then the structure is simple and easy to manufacture, but it cannot automatically feed back its switching status

Engineering Contradiction:
Improveswitching status feedbackVSAvoidvalve structure
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent introduces a feedback mechanism by mounting a magnetic assembly on the rocker arm and a magnetic sensor on the valve body. When the rocker arm moves between open and closed positions, the magnetic field intensity detected by the sensor changes, generating a feedback signal that automatically indicates the switching status. This resolves the information loss problem without requiring complex mechanical feedback linkages.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces traditional mechanical feedback mechanisms with a magnetic field-based detection system. Instead of using mechanical linkages or electrical contacts to transmit switching status, the invention uses magnetic field intensity changes to generate feedback signals, simplifying the overall structure while enabling automatic status detection.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Extent of automation

If a magnetic sensor and magnetic assembly are added to enable automatic feedback, then switching status can be detected automatically, but the device complexity increases

Engineering Contradiction:
Improveswitching status detectionVSAvoidvalve structure
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The patent uses a magnetic field as an intermediary between the mechanical movement of the rocker arm and the electrical detection system. The magnetic assembly converts mechanical position into magnetic field intensity changes, which the magnetic sensor then detects. This intermediary approach enables automatic detection while keeping the mechanical and electrical systems independently simple.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent exploits changes in magnetic field intensity as a parameter to indicate switching status. By positioning the magnetic assembly and sensor such that their relative distance or orientation changes with rocker arm position, the system converts mechanical displacement into detectable magnetic parameter changes, enabling automatic feedback without complex mechanisms.

Inventive Principle:
Principle #35Parameter changes

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 automatic feedback of the switching state, enhancing user experience by facilitating coordinated control with other components like solenoid valves and luminous members.

Implementation Method 1

The switching feedback unit includes a magnetic assembly with magnetism and a magnetic sensor for sensing a magnetic field of the magnetic assembly

Methodology Applied
Scientific EffectMagnetic field sensing: Magnetic Field

Data Source

PatentUS11346459B1Inductive switching valve
Publication Date: 2022.05.31 HARDA INTELLIGENT TECH CO LTD
  • US11346459B1 patent drawing
  • US11346459B1 patent drawing
  • US11346459B1 patent drawing

AI summary

An inductive switching valve includes a valve body, a valve core assembly that is mounted in the valve body, a rocker arm that is movably connected to the valve body and matched with the valve core assembly, and a switching feedback unit. A magnetic assembly and a magnetic sensor of the switching feedback assembly are mounted to the rocker arm and the valve body, respectively. The switching feedback unit can automatically generate a corresponding switching signal according to the switching state of the inductive switching valve, so that the present invention can automatically feed back the switching state of the inductive switching valve.