Fiber-Reinforced Laminate Shutter with Metal Light Shielding
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Solution Overview
Problem
Shutter blades made of carbon fiber-reinforced plastic film face issues with poor thickness uniformity and insufficient light shielding properties, leading to high failure rates and increased weight when attempting to improve light shielding, resulting in high costs and reduced durability.
Innovation Solution
A fiber-reinforced laminate comprising a first fiber-reinforced layer, a second fiber-reinforced layer, and a metal layer interposed between them, with the metal layer ensuring sufficient light shielding properties while maintaining a lightweight structure, and connecting layers that bond the fiber-reinforced layers with the metal layer using the same resin composition, enhancing adhesion strength and planarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the thickness of carbon fiber-reinforced plastic film shutter blades is increased to improve light shielding properties, then light shielding performance is improved, but weight increases and manufacturing precision deteriorates due to poor thickness uniformity
Solution Approach 1:
The patent uses a composite structure consisting of a metal layer (aluminum or aluminum alloy) combined with fiber-reinforced plastic layers. The metal layer provides excellent light shielding properties with thin thickness, while the fiber-reinforced plastic layers provide structural strength and rigidity. This composite approach allows achieving sufficient light shielding without increasing overall thickness and weight, as the metal layer is more effective at blocking light per unit thickness compared to plastic materials alone.
Solution Approach 2:
The invention applies different materials to different functional requirements: the metal layer is positioned to specifically address light shielding requirements, while the fiber-reinforced plastic layers address structural requirements. This local differentiation of material properties allows optimization of each function independently, achieving light shielding without proportionally increasing weight.
2Object-affected harmful factors
If the thickness of carbon fiber-reinforced plastic film shutter blades is increased to improve light shielding properties, then light shielding performance is improved, but manufacturing precision deteriorates due to poor thickness uniformity
Solution Approach 1:
By using a metal layer combined with fiber-reinforced plastic layers, the patent achieves light shielding properties without relying on increased thickness of plastic material alone. The metal layer provides consistent light blocking performance with uniform thickness, overcoming the thickness uniformity issues inherent in thick plastic films.
3Weight of moving object
If conventional carbon fiber-reinforced plastic film is used for shutter blades, then lightweight structure is achieved, but durability is reduced due to insufficient light shielding properties leading to higher failure rates
Solution Approach 1:
The patent combines metal layers with fiber-reinforced plastic layers to create a composite shutter blade that maintains lightweight properties while achieving sufficient light shielding. The metal layer prevents the insufficient light shielding that causes failure in conventional plastic blades, thereby improving durability without sacrificing the lightweight advantage.
Solution Approach 2:
The metal layer is specifically positioned to address the light shielding function that was insufficient in conventional plastic blades. This localized improvement in material selection at the critical light-blocking interface enhances overall blade reliability without requiring throughout the entire blade structure.
4Strength
If multiple fiber-reinforced layers are laminated to improve strength and rigidity, then mechanical properties are improved, but planarity deteriorates and manufacturing complexity increases
Solution Approach 1:
The patent uses a metal layer as a rigid substrate that inherently maintains planarity, upon which fiber-reinforced plastic layers are laminated. The metal layer serves as a stable base that prevents warping and maintains flatness, while the plastic layers provide additional strength and rigidity without compromising the planar shape.
Solution Approach 2:
The fiber-reinforced plastic layers are applied as thin films on the metal substrate. These thin reinforced layers provide necessary mechanical strength while maintaining flexibility in manufacturing and adhering closely to the planar metal surface, thereby preserving good planarity even with multiple layers.
Data Source
AI summary
There is provided with a fiber-reinforced laminate. The fiber-reinforced laminate has a first fiber-reinforced layer and a second fiber-reinforced layer. The fiber-reinforced laminate also has a metal layer provided between the first fiber-reinforced layer and the second fiber-reinforced layer.