Window Frame Sealing Device with Composite Insulating and Moisture-Resistant Layers
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Solution Overview
Problem
The existing methods for sealing the lower corner areas of window frames in wall openings are not reliable and often result in moisture penetration, leading to a loss of insulating effect and potential damage, particularly due to water entering the grooves between the window frame and sill.
Innovation Solution
A sealing device composed of a base body made of insulating material and a thin-walled panel of greater hardness, designed to form a shaped body that seals the corner area predictably, with features such as reinforcement elements and water-draining structures to prevent moisture penetration and ensure durable sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional sealing methods are used for lower corner areas of window frames, then sealing can be performed with simple materials, but the sealing reliability is insufficient and moisture penetration occurs
Solution Approach 1:
The sealing device uses a composite structure combining insulating material (such as expanded polystyrene) with a water-resistant outer layer (such as bitumen sheet or waterproof membrane). This composite material approach provides both insulation and reliable moisture protection, resolving the contradiction between sealing reliability and material simplicity by integrating multiple material functions into a single composite component.
Solution Approach 2:
The invention merges the sealing function, insulation function, and water drainage function into a single integrated molded body. The sealing device combines the base body made of insulating material with the thin-walled sheet material of greater hardness to form a unified structure that performs multiple functions simultaneously, thereby improving sealing reliability without requiring multiple separate components.
2Reliability
If adequate sealing of grooves is attempted with traditional materials, then sealing coverage can be improved, but the sealing process becomes time-consuming and material consumption increases
Solution Approach 1:
The sealing device is pre-formed as a molded body with the exact shape and dimensions needed for the lower corner area of the window frame. The insulating material and water-resistant layer are combined in advance during manufacturing, so that during installation, the worker only needs to place the pre-configured component into position, significantly reducing installation time while maintaining comprehensive sealing coverage.
Solution Approach 2:
The sealing device is designed as a segmented molded body with specific geometric features including the base body and thin-walled sheet material portions that fit into different spaces. This segmentation allows the single component to cover multiple sealing surfaces (grooves, corners, and interfaces) simultaneously, providing comprehensive sealing in one installation action rather than requiring multiple separate sealing operations.
3Loss of energy
If insulating material is placed directly in contact with water, then insulation performance is maintained, but water penetration occurs and insulation effectiveness is lost
Solution Approach 1:
The thin-walled sheet material of greater hardness serves as an intermediary layer between the water environment and the insulating material. This intermediate water-resistant barrier (made of materials such as bitumen sheet, waterproof membrane, or plastic) prevents direct contact between water and the insulating material, thereby protecting the insulation effectiveness while maintaining the thermal performance of the base body.
Solution Approach 2:
The invention uses a thin-walled sheet material that forms a flexible but water-tight shell around the insulating material. This thin film structure provides effective moisture protection while minimizing the additional thickness and maintaining the insulating performance of the base body, preventing water penetration that would otherwise compromise insulation effectiveness.
Data Source
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AI summary
The present invention relates to a sealing device for sealing a window frame in the lower region of a wall opening. To reliably and permanently solve the problem of sealing the lower region of a window frame in a wall opening with predictable sealing success, the sealing device according to the invention has first, second, and third sealing surfaces designed to seal against a bottom, an outer, and a longitudinal edge of the window frame with at least one seal interposed. The sealing device has at least one support section comprising the first sealing surface and designed to support the window frame on its underside.The sealing device further comprises a first side section, which has the second sealing surface and connects to the support section on the outside, and at least a second side section, which has the third sealing surface and connects to the side of the support section. The first, second, and third sealing surfaces meet at a common corner point. The support section and the first side section consist essentially of insulating material, and the second side section consists of a moisture-resistant plastic.