Pyramidal Rear Housing Facets for Impact Force Distribution
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Solution Overview
Problem
Portable electronic devices with flat housing bodies are prone to damage from impacts, which can harm internal components like camera modules due to insufficient rigidity and strength.
Innovation Solution
A portable electronic apparatus with a rear side featuring at least three facets forming a peak, such as a pyramid, to distribute impact forces and enhance mechanical properties like rigidity and strength, thereby protecting embedded devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a flat housing body is used, then the device structure is simple and easy to manufacture, but the rigidity and strength are insufficient, making the device prone to damage from impacts
Solution Approach 1:
The housing rear surface is transformed from a flat two-dimensional plane to a three-dimensional pyramidal structure with facets and a peak. This dimensional change allows the structure to distribute impact forces across multiple surfaces, significantly improving rigidity and strength while maintaining manufacturing feasibility through standard forming processes.
Solution Approach 2:
The rear housing surface is segmented into multiple triangular facets that converge at a central peak. This segmentation divides the impact force into multiple vectors distributed across different facets, preventing concentration of stress at any single point and thereby enhancing overall structural strength.
2Strength
If the housing structure is simplified for ease of manufacture, then production is easier, but the housing cannot effectively withstand impact forces
Solution Approach 1:
By forming the rear housing in a pyramidal shape with elevated manufacturing processes, the design achieves superior impact resistance. The three-dimensional structure can be manufactured using conventional techniques such as injection molding or stamping, balancing enhanced strength with manufacturing feasibility.
Solution Approach 2:
The housing geometry parameters are changed from a flat plane to a pyramidal structure with specific facet angles and peak height. These parameter changes optimize the distribution of impact forces while remaining within the capabilities of standard manufacturing processes for portable electronic devices.
3Reliability
If a flat housing design is used, then the device is compact and simple, but internal components are vulnerable to damage during drops
Solution Approach 1:
The pyramidal rear surface creates a three-dimensional structure that provides passive protection to embedded components. When the device is dropped, the peak and facets absorb and distribute impact forces, reducing the transmission of shock to internal components like camera modules, thereby improving reliability without adding active protection mechanisms.
Solution Approach 2:
The pyramidal structure serves as a pre-designed protective feature that cushions impacts before they reach internal components. The geometric structure is built into the housing from the beginning, providing inherent shock absorption and force distribution that protects embedded devices during accidental drops.
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 design effectively disperses impact forces across multiple facets, significantly improving the device's ability to withstand drops and other impacts, reducing the likelihood of damage to internal components.
Implementation Method 1
According to force equilibrium of static mechanics, a force applied to the peak of the rear side will be withstood by plural forces each with a small amount
Data Source
AI summary
A portable electronic apparatus comprises one or more protrusion structures on a surface of the portable electronic apparatus. The protrusion structure comprises a plurality of facets, and one or more peaks are formed on the junctions of the facets. The facets are preferably in the form of triangles or quadrangles, and the protrusion structure is in the form of a pyramid of a triangular base or a quadrangular base. In an embodiment, the protrusion structure is formed on the back housing of the portable electronic apparatus, so that an electronic device, e.g., a digital camera module, embedded in the back housing can be protected to minimize the likelihood of damage.