Tilt Window Ventilation Duct with Sealed Openings
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Solution Overview
Problem
Conventional soundproof windows in high-noise urban areas fail to provide effective ventilation and acoustic insulation simultaneously, as they either prevent acoustic contact with the outside world or compromise soundproofing when opened for ventilation.
Innovation Solution
A window design featuring a ventilation duct with sealed openings that only expose when tilted or turned, using sound-absorbing materials and seals to minimize sound transmission and ventilation when closed, allowing for both soundproofing and ventilation when the window is operated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional soundproof window is used, then sound insulation is improved, but ventilation capability deteriorates
Solution Approach 1:
The window system is segmented into separate functional components: a fixed soundproof window frame and a movable casement with ventilation duct. The ventilation duct is integrated into the casement structure, allowing ventilation function to be separated from the main window opening mechanism, enabling soundproofing when closed while providing dedicated ventilation path when opened.
Solution Approach 2:
The ventilation duct acts as an intermediary structure that provides a controlled air passage independent of the main window opening. When the casement is closed, the ventilation duct remains sealed by the closure means, maintaining soundproofing. When the casement opens, the closure means releases, allowing air to flow through the ventilation duct while the casement blocks external noise.
2Ease of operation
If the window is opened for ventilation, then ventilation capability is improved, but sound insulation deteriorates
Solution Approach 1:
The closure means is designed to dynamically change its function based on casement position. When the casement is closed, the closure means seals the ventilation duct openings to maintain soundproofing. When the casement opens to a predetermined angle, the closure means automatically releases to allow air flow through the ventilation duct, providing dynamic adaptation to different operational states.
Solution Approach 2:
The system changes the operational parameters of the ventilation duct based on casement position. The closure means transitions from a sealed state (when casement is closed) to an open state (when casement is opened), changing the flow characteristics from blocked to allowing air passage, while the sound-absorbing material continuously attenuates noise transmission.
3Ease of operation
If a ventilation duct is added to enable ventilation, then ventilation capability is improved, but device complexity increases
Solution Approach 1:
The ventilation duct is merged with the casement structure, integrating the ventilation function into the existing window assembly. The closure means is integrated into the casement, and the sound-absorbing material is incorporated within the ventilation duct structure, combining multiple functions (ventilation, sealing, sound absorption) into a unified system rather than adding separate independent components.
Solution Approach 2:
The casement structure serves multiple functions: it provides the main window opening mechanism, houses the ventilation duct, contains the closure means for controlling ventilation, and works with the sound-absorbing material for noise attenuation. This multi-functionality reduces the need for separate dedicated components for each function, thereby limiting the increase in overall device complexity.
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 enables effective sound insulation while allowing ventilation, maintaining user contact with the outside environment without excessive noise exposure, by using a ventilation duct lined with sound-absorbing materials and strategically placed seals to manage noise and airflow.
Implementation Method 1
The ventilation duct is preferably lined with sound-absorbing material
Implementation Method 2
The gap between the sash frame and the outer frame that occurs when the sash is opened by tilting or turning is closed by means of a seal and an effective reduction in sound transmission
Data Source
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AI summary
A window, in particular a tilt window or casement window or tilt-and-turn window, comprising at least one frame (1) and a sash (2) with a surface element (22), wherein the sash is rotatably and/or tiltably received in the frame at least between a first position and a second position, wherein the frame (1) is equipped with at least one ventilation channel (12) having a first ventilation channel opening (121) and a second ventilation channel opening (122), wherein the frame (1) is equipped at least partially, preferably completely, with a seal (114), wherein the sash (2) is equipped with a closing means (214) which in the first position is configured to close at least one, preferably both, ventilation channel openings (121, 122), wherein the sash (2) in the second position is configured to open the ventilation channel openings (121,122) to release and to rest against the seal (114).