Protective Cover Elastic Cushioning Impact Absorption
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Solution Overview
Problem
Existing protective covers for portable electronic devices do not adequately cushion the impact of drops, potentially causing damage to the device's electronic components.
Innovation Solution
A protective cover with integrally formed elastic cushioning structures, made of thermoplastic polyurethane, featuring wedge-shaped elastic bodies and deformable clearances that absorb impact by deforming towards a through hole or blind hole, reducing concussion force on the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a protective cover is used to protect the portable electronic device, then the device is protected from staining or scraping, but the protective cover cannot completely cushion the impact when the device is dropped
Solution Approach 1:
The protective cover is divided into different functional regions: a main body portion for general protection and separate cushioning structures positioned at corners and edges. This segmentation allows each region to specialize in its specific protective function, with corners and edges receiving enhanced impact absorption structures.
Solution Approach 2:
Cushioning structures are pre-positioned at corners and edges of the protective cover, which are the most vulnerable areas during drops. These structures are designed in advance to deform and absorb impact energy before the device contacts the ground, protecting electronic components from shock damage.
2Reliability
If cushioning structures are added to protect against drops, then impact cushioning capability is improved, but the device complexity increases
Solution Approach 1:
The cushioning structures are integrally formed with the main body of the protective cover as a single piece, eliminating the need for separate assembly steps. This merging of components simplifies manufacturing while providing enhanced impact protection at critical areas.
Solution Approach 2:
The material of the protective cover is selected to have specific elastic properties that enable the cushioning structures to deform under impact and return to their original shape. By changing the material parameters (elasticity, hardness), the cover provides effective cushioning without requiring complex mechanical mechanisms.
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
Effectively cushions the impact of drops, protecting the electronic components of portable devices by distributing and reducing the force of the impact through the use of deformable elastic materials.
Implementation Method 1
The elastic body 21 can be deformed toward the clearance 23 when the elastic body 21 is impacted, such that a concussion force to the portable electronic device which is received in the protective cover 100 is decreased
Data Source
AI summary
A protective cover for a portable electronic device includes a main body and a plurality of cushioning structures. The main body is configured to receive the portable electronic device. Each cushioning structure includes an elastic body protruding from the main body and a clearance defined between the main body and the elastic body. The elastic body is deformed toward the clearance when the elastic body is impacted.