Die-Cast Metallic Housing with Embedded Alloy Core
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Solution Overview
Problem
Existing electronic device housings made from magnesium, aluminum, or zinc alloys require a metallic coating to achieve an attractive appearance, which adds complexity and cost, while also not fully utilizing the structural strength of these metals.
Innovation Solution
A metallic housing design where a stainless steel, aluminum, or titanium outer case is die-cast to include latching hooks and receiving grooves, allowing an inner structural member made of magnesium, aluminum, or zinc alloy to be embedded, eliminating the need for a coating process and simplifying manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a metallic layer is coated onto the outer surface of the housing to enhance metallic appearance, then the appearance quality is improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent extracts the metallic appearance requirement from the coating process and integrates it into the base material selection. By choosing aluminum alloy as the base material, which inherently provides metallic appearance, the patent eliminates the need for additional metallic coating layers, thereby reducing manufacturing complexity while maintaining the desired aesthetic quality.
Solution Approach 2:
The patent merges the structural function and aesthetic function into a single component. The aluminum alloy housing simultaneously provides structural strength and metallic appearance, eliminating the need for separate coating layers. This consolidation reduces the number of manufacturing steps and simplifies the overall production process.
2Shape
If a metallic layer is coated onto the outer surface of the housing, then the metallic appearance is enhanced, but the manufacturing cost increases
Solution Approach 1:
The patent removes the costly metallic coating step from the manufacturing process by selecting aluminum alloy as the base material. This extraction of the coating requirement eliminates material costs, labor costs for coating application, and quality control costs associated with coating inspection, thereby significantly reducing overall manufacturing cost while preserving metallic appearance.
Solution Approach 2:
The patent utilizes aluminum alloy's inherent properties to provide metallic appearance without requiring expensive protective or decorative coatings. The base material itself serves the dual purpose of structural component and aesthetic finish, eliminating the need for additional costly coating materials and application processes.
3Strength
If metal-alloys are used to make housings, then weight is reduced and structural strength is improved, but the attractive metallic appearance of pure metals is lost
Solution Approach 1:
The patent applies local quality by selecting aluminum alloy specifically for its optimal balance of structural strength and inherent metallic appearance. Rather than using pure metals that provide appearance but lack strength, or using other alloys that provide strength but lose appearance, the patent locally optimizes the material selection to achieve both structural performance and aesthetic quality simultaneously.
Solution Approach 2:
The patent utilizes aluminum alloy as a composite material that combines the advantages of pure aluminum (metallic appearance) with the strength-enhancing properties of alloying elements. This composite material approach allows the housing to achieve both the desired structural strength and the attractive metallic appearance without requiring additional coating layers.
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
This design achieves a metallic appearance without coatings, reduces weight, and simplifies manufacturing by integrating the inner structural member within the outer case, thereby enhancing structural strength and reducing costs.
Implementation Method 1
preheating the die-casting mold to a predetermined temperature
Data Source
AI summary
A manufacturing method for a metallic housing of an electronic device is provided. The method includes providing a die-casting mold, including a male die and a female die engaging with the male die, the male die defining a pouring gate therein, and the female die defining a cavity therein corresponding to the pouring gate; positioning a metallic outer case in the cavity of the female die as an insert; assembling the male die to the female die to cover the cavity, thereby communicating the pouring gate with the cavity; casting pressured molten metal-alloy into the cavity via the pouring gate to form an inner structural member embedded in an inner side of the outer case; dissembling the male die from the female die to expose the cavity, and removing the outer case and the inner structural member from the female die.