A self-triggering ventilation valve for automatically self-opening after a pre-set time, actuator unit for retrofitting a ventilation valve, window and method for self-opening a ventilation valve
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Solution Overview
Problem
Residences often suffer from inadequate ventilation due to forgotten closed ventilation valves, leading to discomfort and increased risk of moisture damage, as users may close valves during storms or fires and forget to reopen them.
Innovation Solution
A self-triggering ventilation valve with an actuator unit that automatically opens after a pre-set time, comprising a displacement member, trigger member, and controller, which detects the block member's closed position and activates the displacement member to revert it to the open position after a specified period, typically between 1-24 hours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a ventilation valve is closed to prevent moisture ingress during storms or fires, then protection against harmful external factors is improved, but ventilation function deteriorates due to user forgetfulness
Solution Approach 1:
The controller is pre-programmed with a timer that automatically triggers the displacement member to open the valve after a predetermined period, eliminating the need for user intervention and ensuring ventilation resumes without forgetfulness
Solution Approach 2:
The trigger member detects the closed position of the block member and provides feedback to the controller, which then activates the displacement member after the preset time, creating a closed-loop system that ensures automatic reopening
2Reliability
If an automatic reopening mechanism is added to the ventilation valve, then reliability of ventilation function is improved, but device complexity increases
Solution Approach 1:
The automatic reopening function is segmented into separate functional components: a trigger member for detection, a controller for timing logic, and a displacement member for actuation, allowing independent optimization and simplified installation
Solution Approach 2:
The controller serves as an intermediary between the trigger member's detection signal and the displacement member's actuation, coordinating the timing and sequence of operations to achieve automatic reopening without direct mechanical coupling
3Ease of manufacture
If the actuator unit is designed as a separate retrofit component, then ease of installation is improved, but device complexity increases
Solution Approach 1:
The actuator unit is segmented as a separate modular assembly containing the trigger member, controller, and displacement member, which can be independently manufactured and then installed as a complete unit into existing ventilation valves
Solution Approach 2:
The separate actuator unit is designed with universal mounting features that can be adapted to different ventilation valve types, allowing a single design to serve multiple applications and simplifying manufacturing while maintaining ease of retrofit installation
Data Source
Figure 1A~1C
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AI summary
A self-triggering ventilation valve (10) for automatically self-opening after a pre-set time, the ventilation valve (10) comprises: - a body (20) having a body shape (22) for engaging a channel opening (110) of a window (100), the body (20) comprising a body channel (24) for allowing passage of an air flow from the channel opening (110) and through the body (20); - a block member (30) connected to the body (20) and being displaceable between an open position (32) and a closed position (34) blocking the body channel (24); and - an actuator unit (50) comprising: - a displacement member (60) being adapted for displacing the block member (30) from the closed position (34) to the open position (32); - a trigger member (70) configured for detecting the block member (30) being displaced to the closed position (34); and - a controller (90) configured for activating the displacement member (60) af- ter a pre-set time of detecting the block member (30) being in the closed position (34).