Window Frame Ventilation Passage With Integrated Noise Absorber
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Solution Overview
Problem
Existing ventilation systems for natural ventilation in rooms, such as those described in US2014/0113541 and WO 2004/070155, are complex to install, require substantial modifications to door or window frames, and suffer from thermal leakage and accessibility issues, especially for the elderly.
Innovation Solution
A ventilation system where the opening frame is movably mounted in a fixed frame, allowing for an intermediate open position that creates a ventilation passage without the need for a hatch, with an active noise damper integrated into the frame sections, which can be easily activated or deactivated by moving the window or door, and includes soundproofing materials to reduce thermal losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hatch is installed in the ventilation passage to initiate natural ventilation, then ventilation can be controlled, but accessibility becomes difficult for some people and thermal leakage increases
Solution Approach 1:
The invention removes the hatch element from the ventilation passage design. Instead of requiring a hatch to be opened for ventilation, the system uses the window or door itself as the ventilation control mechanism. The window/door frame integrates the ventilation passage, and opening the window/door directly enables ventilation without needing to access or manipulate a separate hatch, thereby eliminating accessibility issues and thermal leakage associated with hatches.
Solution Approach 2:
The window or door serves multiple functions: it provides natural ventilation when opened, maintains thermal insulation when closed, and eliminates the need for separate ventilation control mechanisms like hatches. The opening frame and fixed frame structure allows the same component to serve both as an access point and a ventilation passage, reducing the number of separate elements and their associated problems.
2Reliability
If the ventilation passage is installed in the opening frame or between fixed frame and masonry wall, then ventilation is achieved, but substantial modifications to opening frames and masonry work are required
Solution Approach 1:
The invention merges the ventilation passage installation with the existing window or door frame structure. The opening frame and fixed frame are designed to incorporate the ventilation passage as an integrated feature, eliminating the need for separate masonry work or substantial modifications to the opening frames. The ventilation passage is created within the space between the opening frame and fixed frame, combining structural and ventilation functions.
Solution Approach 2:
The system allows the opening frame to move between closed and open positions relative to the fixed frame, creating a dynamic ventilation passage. When the window or door is opened, the space between the frames enables ventilation; when closed, the passage is sealed. This dynamic approach allows ventilation functionality without requiring permanent structural modifications.
3Productivity
If the opening frame is moved away from the fixed frame to create ventilation passage, then natural ventilation is enabled, but the ventilation passage must be hermetically sealed when closed
Solution Approach 1:
The system uses the dynamic movement of the opening frame relative to the fixed frame to control ventilation. When opened, the space between frames creates the ventilation passage; when closed, the frames come together to seal the passage. The sealing is achieved through the natural contact between the opening frame and fixed frame profiles, eliminating the need for complex sealing mechanisms while maintaining both ventilation efficiency and sealing precision.
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
Simplifies the design and installation of the ventilation system, reduces thermal leakage, and allows easy access for natural ventilation while effectively attenuating noise through the integrated active noise damper, maintaining the integrity of the window's glazed surface and illumination.
Implementation Method 1
an active noise absorber suitable for attenuate the sound waves propagating in the ventilation passage by the generation of a counter-noise which is superimposed on said sound waves
Data Source
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AI summary
The invention relates to an apparatus for natural ventilation of a room, comprising: - a room, - at least one door or one window that comprises an opening frame produced by profiles supporting at least one glass panel, which opening frame is mounted so as to move in a fixed stationary frame formed by profiles surrounding said opening frame, - a ventilation passage which communicates between the outside of the room and the inside of the room in such a way as to allow natural ventilation between the outside and inside of said room, - a noise absorber capable of attenuating sound waves propagating in the ventilation passage, - the opening frame is mounted movably in the stationary frame between a closed position in which a first opening-frame profile engages with a first corresponding stationary-frame profile and an intermediate opening position in which the first opening-frame profile is opened from the first stationary-frame profile by a predetermined distance, - the ventilation passage is delimited by the space separating the first opening-frame profile from the first stationary-frame profile when said opening frame is in the intermediate open position, - the noise absorber is installed directly in the first opening-frame profile and/or in the first stationary-frame profile, - when the opening frame is in the closed position, the first profiles engage in such a way that the ventilation passage is hermetically closed.