Integrated Shielding Member in Mobile Terminal Case
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile terminals face interference from electromagnetic waves, which can distort signals and affect electronic components, and existing shielding solutions are not effectively integrated into the terminal's structure, impacting rigidity and assembly complexity.
Innovation Solution
A shielding member is integrated into the mobile terminal's case, formed of metal with a base and extending ribs that contact the printed circuit board, defining shielding regions and preventing electromagnetic wave interference, and is formed together with the case using injection molding, enhancing rigidity and simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a separate shielding shield is mounted on the printed circuit board, then electromagnetic wave shielding is achieved, but device complexity and assembly complexity increase
Solution Approach 1:
The shielding member is integrated into the intermediate case structure, merging the shielding function with the case structure. The intermediate case includes a shielding groove that receives a shielding plate, combining structural support and electromagnetic shielding into a single integrated component, thereby reducing assembly complexity while maintaining shielding effectiveness
Solution Approach 2:
The intermediate case serves multiple functions: it provides structural support between front and rear cases, incorporates electromagnetic shielding through the shielding groove and plate, and integrates with the printed circuit board mounting structure. This multi-functionality eliminates the need for separate shielding components
2Object-affected harmful factors
If a metal shielding member is added to block electromagnetic waves, then shielding effectiveness is improved, but terminal thickness increases
Solution Approach 1:
The shielding plate is nested within the shielding groove of the intermediate case, with the groove receiving the plate in a nested arrangement. This nesting allows the shielding member to be accommodated within the existing case thickness without increasing the overall terminal thickness
3Object-affected harmful factors
If traditional separate shielding components are used, then electromagnetic shielding is achieved, but manufacturing complexity increases
Solution Approach 1:
The shielding member is manufactured as an integrated part of the intermediate case through injection molding, merging the shielding function with the case structure. This integration simplifies manufacturing by reducing the number of separate components and assembly steps while maintaining shielding effectiveness
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 solution effectively blocks electromagnetic waves, reduces terminal thickness, and improves the structural rigidity of the mobile terminal while simplifying the assembly process compared to traditional shielding methods.
Implementation Method 1
A shielding member 220 for electrically shielding the electric devices 211 may be provided in or on the intermediate case 103
Data Source
AI summary
A mobile terminal is provided that includes front and rear cases, an intermediate case between the front and rear cases, and a printed circuit board between the intermediate cases and at least one of the front and rear cases. A shielding member having a first width, length and thickness, and being formed of a metal. Non-conductive material may have a second thickness attached to at least two edges of the shielding member.