Antenna Module Bracket for Thin Electronic Chassis

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Electronic apparatuses with high-frequency antennas face challenges in maintaining satisfactory communication quality and thermal radiation due to shielding of radio waves by conductive display components and limited space in thin display chassis.

Innovation Solution

A box-like chassis configuration with a metal-made bracket and resin-made holding tool that securely positions the antenna module, utilizing a thermal conductive sheet for heat dissipation and ensuring radio wave transmission across a wide range, while minimizing interference from conductive components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the antenna module is equipped in the display chassis, then wireless communication function is achieved, but radio waves are shielded by the display and thermal radiation is insufficient

Engineering Contradiction:
Improvecommunication qualityVSAvoidradio wave shielding
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent divides the chassis into separate functional zones: the display chassis contains only the display, while the antenna module is mounted on a dedicated bracket attached to the case chassis. This segmentation prevents the display from shielding the antenna and ensures proper thermal radiation pathways.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a resin-made holding tool as an intermediary component between the metal bracket and the antenna module. This holding tool provides a non-conductive path that prevents radio wave shielding while maintaining mechanical support and thermal management.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a predetermined interval is secured between the display and the antenna module, then radio wave transmission is improved, but the chassis structure becomes complex and appearance quality deteriorates

Engineering Contradiction:
Improveradio wave transmissionVSAvoidchassis structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the mounting function and the radio wave transmission function into a single integrated bracket structure. The metal bracket provides mechanical support while the resin-made holding tool attached to it provides both positioning and radio wave transmission, eliminating the need for separate structural components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The bracket structure serves multiple functions simultaneously: it provides mechanical support for the antenna module, maintains the required interval from the display, enables thermal radiation, and ensures radio wave transmission. This multi-functionality reduces overall structural complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Temperature

If radiating components are installed within the thin display chassis, then thermal radiation is improved, but the available space is insufficient and structural complexity increases

Engineering Contradiction:
Improvethermal radiationVSAvoidchassis space
Core Design Contradiction:
TemperatureVSVolume of moving object

Solution Approach 1:

The patent moves the thermal radiation function from the two-dimensional plane of the display chassis to the three-dimensional space of the case chassis. The antenna module mounted on the bracket extends into the depth of the device, utilizing unused vertical space for heat dissipation without interfering with the thin display profile.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent extracts the thermal radiation function from the display chassis and relocates it to the case chassis. By separating the display function from the antenna and thermal management functions, the display chassis can remain thin while the case chassis provides the necessary volume for heat dissipation.

Inventive Principle:
Principle #2Taking out (Extraction)

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 configuration ensures effective communication quality and thermal radiation for the antenna module, enhancing both performance and appearance by allowing unobstructed radio wave transmission and efficient heat dissipation.

Implementation Method 1

a sheet-like member having a thermal conductive property is provided between the antenna placement surface and the antenna module

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS10403961B2Electronic apparatus
Publication Date: 2019.09.03 LENOVO SWITZERLAND INTERNATIONAL GMBH
  • US10403961B2 patent drawing
  • US10403961B2 patent drawing
  • US10403961B2 patent drawing

AI summary

The present invention provides an electronic apparatus capable of securing satisfactory communication quality and thermal radiation in an antenna module. An electronic apparatus is equipped with a box-like body chassis in which an opening of a first chassis member is closed by a second chassis member. Further, the electronic apparatus is equipped with a metal-made bracket which has an antenna placement surface on which an antenna module transmitting and receiving radio waves is placed, and is fixed to an inner surface of the first chassis member, and a resin-made holding tool which holds the antenna module on the antenna placement surface.