Mounting Bracket Enclosure for UV-Protected Roof Sealing
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Solution Overview
Problem
Current mounting brackets for devices like solar collectors and satellite antennae on roofs face issues such as water damage from poor sealing, corrosion of metallic brackets, degradation of plastic brackets due to UV exposure, and increased roof penetrations required for plastic brackets, leading to potential premature failure and aesthetic degradation.
Innovation Solution
A mounting bracket protection device featuring a U-shaped polymeric base with a metallic mounting bracket and a protective cover that creates a contained area for sealant, includes drainage channels, and uses a standoff to allow continuous sealant injection, providing enhanced sealing and stability without increasing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metallic mounting bracket is used, then strength and durability are improved, but corrosion and rusting occur due to exposure to elements
Solution Approach 1:
The invention combines a metallic mounting bracket with a polymeric protective cover and base member to create a composite structure. The metal bracket provides structural strength while the polymeric materials provide corrosion protection, effectively combining the advantages of both material types to resolve the contradiction between strength and corrosion resistance.
Solution Approach 2:
The polymeric protective cover and base member act as intermediary protective layers between the metallic bracket and the external environment. These intermediaries shield the metal from direct exposure to moisture and oxygen, preventing corrosion while allowing the metal to maintain its structural function.
2Object-affected harmful factors
If a plastic mounting bracket is used, then corrosion resistance is improved, but strength is reduced requiring more brackets and penetrations
Solution Approach 1:
The invention creates a composite system where plastic components (protective cover and base member) are combined with a metal bracket. This allows the structure to achieve both the corrosion resistance of plastic and the strength of metal, eliminating the need to choose one material over the other.
Solution Approach 2:
The mounting system is divided into functional segments: the metal bracket handles load-bearing functions, while the polymeric cover and base member handle environmental protection and sealing functions. This segmentation allows each component to be optimized for its specific purpose.
3Reliability
If sealant is exposed to ultraviolet light, then sealing function is maintained initially, but degradation occurs over time leading to water damage
Solution Approach 1:
The polymeric protective cover serves as an intermediary shield between the sealant and ultraviolet light. By blocking UV radiation from reaching the sealant, the cover prevents photo-degradation and extends the sealant's functional lifespan, maintaining the sealing function over time.
Solution Approach 2:
The protective cover provides beforehand protection by shielding the sealant from UV exposure before degradation can occur. This preventive measure cushions the sealant against environmental damage, ensuring long-term reliability of the sealing function.
4Strength
If multiple plastic brackets are used to compensate for weakness, then individual bracket strength is insufficient, but the number of roof penetrations increases
Solution Approach 1:
By combining metal and plastic materials in a single bracket assembly, the invention achieves high strength in one component rather than requiring multiple weaker plastic brackets. This reduces the total number of brackets and roof penetrations needed while maintaining or improving overall structural strength.
Data Source
AI summary
A protective device for a mounting bracket suitable for installation of solar collectors. The device includes a U-shaped polymeric base member having a substantially rectangular bottom joined to two opposed upwardly-projecting side walls, the bottom having at least one aperture adapted to receive a mounting fastener capable of attaching the base member to a substrate. A substantially rectangular polymeric cover having substantially the same dimensions as the base member bottom is attached to the base member's side walls. The protective device also includes a metallic mounting bracket adapted to receive a mounting strap. The base member and cover define a partial enclosure having at least one opening through which the mounting strap or a portion of the metallic mounting bracket can pass, and which can retain and protect sealant placed over the mounting fastener.