Valve Core Seat With Manual Bypass After Switch Failure

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Solution Overview

Problem

Existing induction taps with solenoid valve switches face issues where damage to the switch results in constant water flow or inability to control water outlet, necessitating replacement and increased costs.

Innovation Solution

A valve core module with a water path switching mechanism that allows a tap to function as an ordinary tap after the electric control switch is damaged, featuring a compact design with integrated water inlet and outlet passages, and a movable plate for water mixing and distribution, enabling manual operation when the electric control fails.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a solenoid valve switch is used for induction water outlet control, then automatic water outlet control is achieved, but the system reliability deteriorates when the switch is damaged

Engineering Contradiction:
Improveautomatic water outlet controlVSAvoidsystem functionality when switch is damaged
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The water outlet control system is segmented into two independent paths: an automatic control path (first water outlet passage controlled by solenoid valve) and a manual control path (second water outlet passage). This segmentation allows the manual path to function independently when the automatic control fails, resolving the reliability issue while maintaining automation capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The valve core structure is designed to change its position parameter between different states: normally positioned to block the second water outlet passage, and rotatable to open it. This parameter change enables switching between automatic and manual control modes, allowing the system to maintain functionality when the solenoid valve fails.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If a multi-functional valve core is used to adjust water temperature and control water path, then the device complexity increases, but the ease of operation improves

Engineering Contradiction:
Improvewater temperature adjustment and water path controlVSAvoidvalve core structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The valve core is designed as a multi-functional component that simultaneously performs water temperature adjustment (by rotating to mix hot and cold water) and water path control (by blocking or opening different passages). This multi-functionality consolidates multiple operations into a single component, improving ease of operation while the modular design keeps complexity manageable.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention merges the water temperature control function and water path distribution function into a single integrated valve core structure. The valve core combines a rotor for temperature adjustment and a plunger for path control, merging multiple functions that would traditionally require separate components, thus improving operational efficiency.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If the first and second water outlets are controlled only by a ceramic rotor, then the device complexity is reduced, but the adaptability deteriorates

Engineering Contradiction:
Improveceramic rotor control mechanismVSAvoidwater circulation control options
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The system introduces dynamic adaptability through the rotatable valve core with plunger mechanism, which can dynamically switch between different water path configurations. While the ceramic rotor provides static positioning, the added plunger mechanism enables dynamic adaptation to different operational needs (normal mode, emergency mode, temperature adjustment), significantly improving versatility without excessive complexity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4148306B1Valve core seat and valve core module set
Publication Date: 2025.07.23 NINGBO WANHAI VALVE TECH CO LTD
  • EP4148306B1 patent drawingFigure 1~2
  • EP4148306B1 patent drawingFigure 3
  • EP4148306B1 patent drawingFigure 4

AI summary

The present invention disclosed a core seat for a valve core, the core seat comprises a base (9) with a total water outlet passage (9a), a first transition water outlet passage (9b) and a second transition water outlet passage (9c); and an electric control switch (13), the second transition water outlet passage (9c) is in communication with the total water outlet passage (9a), the electric control switch (13) controls communication between the first transition water outlet passage (9b) and the total water outlet passage (9a); the core seat provides the possibility that a tap using the core seat can be switched into an ordinary tap for use after an electric control switch is damaged. The present invention disclosed a valve core module which comprises a water path switching valve core and the core seat, a tap using the valve core module can be switched to an ordinary tap for use after the electric control switch is damaged.