Humidifier Water-Level Trigger for Dry-Run Safety Control
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Solution Overview
Problem
Conventional humidifiers can operate in a state of water shortage, posing safety hazards and leading to unsafe accidents.
Innovation Solution
A humidifier design featuring a water reservoir cavity with a trigger switch and waterproof protective cover, where the trigger component pushes the protective cover upward when the water level reaches a predetermined line, triggering the humidifier to work, ensuring operation only when the water level is sufficient, and incorporating a heating component that turns on and off based on water level changes to prevent overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the humidifier operates without water level detection, then the device complexity is reduced, but safety hazards occur due to water shortage operation
Solution Approach 1:
The humidifier automatically detects water level and controls heating operation without user intervention. The trigger component and trigger switch enable the system to self-monitor water levels and self-regulate operation, eliminating the need for manual water level checking while ensuring safety.
Solution Approach 2:
The patent replaces complex electronic water level sensors with a simple mechanical trigger switch system. The trigger component mechanically pushes the trigger switch to detect water level, providing a reliable and safe operation control mechanism with minimal device complexity.
2Reliability
If the waterproof protective cover has uniform wall thickness, then manufacturing precision is improved, but trigger sensitivity decreases
Solution Approach 1:
The waterproof protective cover features non-uniform wall thickness with different regions optimized for different functions: the first wall thickness in the trigger region enables sensitive trigger activation, while the second wall thickness in other regions provides adequate structural strength and waterproofing. This local differentiation resolves the contradiction between trigger sensitivity and manufacturing simplicity.
3Productivity
If the trigger component is positioned higher, then the humidifier can operate at lower water levels, but water shortage safety hazards increase
Solution Approach 1:
The trigger component provides continuous feedback about water level status to the trigger switch. When the water level drops below the trigger component's position, the trigger switch automatically stops the heating operation, creating a feedback control system that prevents water shortage operation and ensures safety while maximizing operational efficiency.
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
This design prevents unsafe operation due to water shortage, enhances user safety, and improves the humidifier's performance by controlling operation based on water level, ensuring efficient and safe mist formation.
Implementation Method 1
the trigger component is used to push upward the waterproof protective cover when a water level of the water reservoir cavity rises to a first predetermined water level line
Implementation Method 2
the heating component is used to heat the water in the water trough for forming mist
Data Source
AI summary
A humidifier includes a base including a water reservoir cavity, a trigger switch provided at the base, and a trigger component located in the water reservoir cavity. An outer side of the trigger switch is provided with a waterproof protective cover. The trigger component is configured to, in response to a water level in the water reservoir cavity rising to a predetermined water level line, push the waterproof protective cover to trigger the trigger switch to control the humidifier to work. A wall thickness the waterproof protective cover at a position where the waterproof protective cover contacts the trigger component is less than a wall thickness of the waterproof protective cover at other positions of the waterproof protective cover.