Humidifier Water Outlet Valve Assembly With Weighted Pre-Tightening
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Solution Overview
Problem
Existing water tank sealing valves in humidifiers rely solely on spring force for sealing, which can fail if the spring loses tension, and the force required to turn the valve cannot be adjusted, leading to unreliable sealing.
Innovation Solution
A water outlet valve assembly with a pressure limiting portion that applies a weight to the valve core assembly, providing a downward pre-tightening force to block the flow passage, allowing for adjustable thrust and improved reliability through the use of different weighted pressure limiting portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spring force is used to drive the valve core assembly to move for sealing, then the sealing mode can be achieved, but the sealing reliability deteriorates when the spring fails or loses tension
Solution Approach 1:
The patent extracts and removes the spring component from the sealing mechanism, replacing it with a pressure limiting portion that uses water pressure directly to drive the valve core assembly. This eliminates the reliability issue of spring failure while maintaining the sealing function.
Solution Approach 2:
The patent replaces the mechanical spring-based sealing system with a water pressure-based sealing system. The pressure limiting portion converts water pressure into driving force for the valve core assembly, substituting the mechanical spring mechanism with a fluid pressure mechanism that is more reliable and maintenance-free.
2Adaptability or versatility
If fixed spring force is used for sealing, then the sealing mode is simple, but the force required for turning the valve cannot be adjusted
Solution Approach 1:
The patent enables adjustment of the sealing force parameter by changing the weight of the pressure limiting portion. Different weights can be selected to provide different downward forces on the valve core assembly, allowing the valve to adapt to different water pressure conditions and application requirements without complex adjustment 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 solution enhances the reliability of the sealing mechanism by providing a consistent pre-tightening force and allowing adjustable thrust, preventing failure due to spring tension loss and enabling the valve to effectively block the flow passage.
Implementation Method 1
The pressure limiting portion is disposed on the valve core assembly and applies a weight of the pressure limiting portion to the valve core assembly
Data Source
AI summary
A water outlet valve assembly and a humidifier including the water outlet valve assembly are provided. The water outlet valve assembly is disposed at a water outlet of a water tank and includes a body and a pressure limiting portion. The body includes a housing and a valve core assembly. A flow passage is formed in the housing. The valve core assembly is capable of blocking the flow passage. The pressure limiting portion is disposed on the valve core assembly and applies a weight of the pressure limiting portion to the valve core assembly, and the pressure limiting portion provides the valve core assembly with a downward pre-tightening force, thus allowing the valve core assembly to block the flow passage.