Box Window Ventilation and Sound Insulation

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Solution Overview

Problem

Existing box windows face deficits in user-independent ventilation, condensate drainage, driving rain drainage, insect protection, fire protection, sound insulation, and ergonomics, and their installation into building structures is complex due to numerous individual parts, leading to overheating issues in summer.

Innovation Solution

A box window design featuring an outer and inner window level connected by a box frame, with ventilation openings in the box frame for independent ventilation, a self-supporting structure for easy installation, and a configuration that allows high light transmission and sound insulation, including a condensate drain integrated into the ventilation opening for efficient drainage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If closed box window system is used without ventilation openings, then sound insulation is improved, but overheating occurs in summer sunshine

Engineering Contradiction:

Improvesound insulationVSAvoidoverheating

Core Design Contradiction:

Object-affected harmful factorsVSTemperature

Solution Approach 1:

The box frame is segmented into multiple sections with strategically placed ventilation openings that can be independently controlled. The frame is divided into regions for ventilation, sun protection, and sound insulation, allowing each segment to perform its specific function without compromising the others.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The ventilation openings are designed to be dynamically adjustable rather than fixed. They can be opened or closed based on environmental conditions (temperature, humidity, air quality) and user needs, enabling the system to adapt between maximizing sound insulation and providing ventilation to prevent overheating.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If multiple individual parts are used in box window construction, then functional requirements are met, but installation complexity increases

Engineering Contradiction:

Improvefunctional requirementsVSAvoidinstallation complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple functional components (frame, ventilation openings, sun protection elements, sound insulation layers) are merged into an integrated box frame structure. The ventilated box frame serves as a unified assembly that combines structural support, ventilation channels, and sun protection features, reducing the number of separate parts and simplifying installation while maintaining all required functions.

Inventive Principle:

Principle #5Merging (Combining)

3Temperature

If ventilation openings are added to box frame, then overheating is prevented, but sound insulation is reduced

Engineering Contradiction:

Improveoverheating preventionVSAvoidsound insulation

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

Ventilation openings are strategically positioned in specific local areas of the box frame where they provide effective airflow while minimizing impact on sound insulation. The openings are located in regions optimized for ventilation performance, while other critical sound insulation zones remain sealed or use different construction methods.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The box frame employs composite construction combining materials with different properties - acoustic insulation materials in sound-sensitive areas, and ventilated structures in thermal management areas. This composite approach allows simultaneous achievement of sound insulation and heat dissipation functions.

Inventive Principle:

Principle #40Composite materials

4Extent of automation

If permanently open ventilation openings are provided, then user-independent ventilation is achieved, but fire protection is compromised

Engineering Contradiction:

Improveuser-independent ventilationVSAvoidfire protection

Core Design Contradiction:

Extent of automationVSReliability

Solution Approach 1:

Fire protection elements (screens, grilles, or protective structures) are introduced as intermediary components in the ventilation openings. These intermediaries allow air to pass through for ventilation purposes while physically blocking the passage of flames and embers, thus enabling user-independent ventilation without compromising fire safety.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 provides effective ventilation, sound insulation, and condensate management, reducing overheating and installation complexity, while maintaining high light transmission and compliance with fire and noise regulations, making it suitable for various noise and traffic environments.

Implementation Method 1

a sound absorber (24) arranged on an inner surface (27a, 27b, 27c, 27d) of a box frame element (10, 11a, 11b, 12) of the box frame (8)

Methodology Applied

Scientific EffectSound absorption: Acoustic Absorption

Implementation Method 2

at least one inner surface (27a, 27b, 27c, 27d) of the box frame (8) can have a white and light-reflecting coating

Methodology Applied

Scientific EffectLight reflection: Reflection

Data Source

PatentEP3936694B1Double window

Publication Date: 2023.09.27 VONOVIA SE

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AI summary

The invention relates to a box window 1, which has an outer window plane 2 with at least one outer window 4 arranged in an outer window frame 3, an inner window plane 5 with at least one inner window 7 arranged in an inner window frame 6, a box frame 8 connecting the outer window frame 3 and the inner window frame 6, and a ventilation opening 9a, 9b, 9c arranged in the box frame 8.