Composite Mobile Device Shell Resolving Signal Interference
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Solution Overview
Problem
Mobile devices with metal bodies and internal antennas face aesthetic and signal intensity issues due to the need for grooves or partitions to prevent signal interference, limiting their metallic appearance and data transmission quality.
Innovation Solution
A composite material comprising a metal substrate, resin fibre plates, and an antenna layer, where the resin fibre plates prevent electric conduction and enhance data transmission, allowing for a metallic appearance and improved signal strength without the need for a built-in antenna, achieved through hot-pressure treatment and specific processing of metal sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If an internal antenna is formed by electroplating or printing on a plastic substrate within a metal body, then the mobile device can have a metallic appearance, but the signal intensity is reduced and data transmission quality deteriorates due to signal interference from the metal body
Solution Approach 1:
The patent segments the mobile device structure into a metal shell and a separate antenna module. The antenna is positioned in a dedicated cavity within the metal shell, electrically isolated from the metal body through insulating structures. This segmentation allows the metal shell to provide aesthetic appearance while the isolated antenna maintains signal integrity without interference.
2Reliability
If grooves or partitions are arranged in the metal body to allow signal export and prevent signal interference, then data transmission function is improved, but the metallic appearance is compromised and aesthetics deteriorate
Solution Approach 1:
The patent implements a nested structure where the antenna module is housed within a cavity inside the metal shell. The antenna is electrically connected to external interfaces through conductive paths that are insulated from the metal shell walls. This nesting approach allows the antenna to be embedded within the metal body without requiring external grooves or partitions, thereby maintaining the continuous metallic appearance while ensuring proper signal transmission.
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 composite material enables mobile devices to maintain a metallic appearance while enhancing data transmission quality and aesthetics, eliminating the need for internal antennas and improving overall device performance.
Implementation Method 1
the first resin fibre plate and the second resin fibre plate are disposed at the upper and lower surfaces of the antenna layer, so as to prevent electric conduction
Implementation Method 2
subjecting the first metal substrate, the second metal substrate, the first resin fibre plate, the second fibre plate and the antenna layer to hot-pressure treatment in accordance with a predetermined order
Data Source
AI summary
Disclosed are a composite material, a shell for a mobile device, their manufacturing methods, and a mobile device. The composite material includes: a first metal substrate (100); a first resin fiber plate (200) disposed on an upper surface of the first metal substrate; an antenna layer (300) disposed on an upper surface of the first resin fiber plate; a second resin fiber plate (400) disposed on an upper surface of the antenna layer; and a second metal substrate (500) disposed on an upper surface of the second resin fiber plate.