Antenna Bracket Design for Vertical Set Top Box Assembly

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Solution Overview

Problem

Vertically oriented electronic devices face challenges in assembling and maintaining multiple antennas due to spatial constraints and the risk of electrostatic discharge, requiring efficient screwless attachment and secure mounting solutions that do not interfere with locking mechanisms and other components.

Innovation Solution

A vertically oriented electronic device design featuring staging slots for perpendicularly positioning printed circuit boards, a polygonal antenna bracket with pockets to support multiple antennas, and screwless engagement structures that allow for easy access and connection of antennas without risking electrostatic discharge, using retention clips and spring mechanisms for secure assembly and disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple antennas are installed in vertically oriented devices, then antenna coverage and functionality are improved, but device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improveantenna coverageVSAvoidassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple antenna mounting functions into a single integrated antenna bracket structure. The bracket includes multiple mounting positions and integrated cable management features, allowing multiple antennas to be installed through one unified component rather than separate mounting mechanisms for each antenna.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The antenna bracket serves multiple functions simultaneously: it provides structural support for multiple antennas, includes integrated cable routing channels, incorporates ESD protection features, and enables easy installation and removal. This multi-functional design reduces the number of separate components needed.

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

2Ease of operation

If screwless attachment concepts are used, then ease of operation and field access are improved, but manufacturing precision and component security worsen

Engineering Contradiction:
Improvefield accessVSAvoidcomponent security
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The antenna bracket is designed as a separate, removable component that can be independently installed and removed from the device housing. This segmentation allows the bracket to be pre-assembled with antennas and cables in a controlled manufacturing environment, ensuring precision, while still enabling easy field access by simply removing the bracket without affecting other components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The antenna bracket acts as an intermediary component between the device housing and the antennas/cables. It provides a standardized interface with features like snap-fit mounting to the housing and integrated cable clamps, ensuring secure assembly during manufacturing while allowing simple removal in the field using basic tools.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Volume of moving object

If antennas are densely packed to save space, then device volume is reduced, but electrostatic discharge risk and component interference increase

Engineering Contradiction:
Improvedevice volumeVSAvoidESD risk
Core Design Contradiction:
Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The antenna bracket serves as a protective intermediary between antennas and the device interior. It includes integrated ESD protection features such as conductive pathways and grounding contacts that safely dissipate electrostatic charges. The bracket physically separates antennas from other sensitive components while maintaining compact positioning through its optimized geometry.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The antenna bracket incorporates thin conductive shielding elements and flexible cable management features that provide ESD protection without adding significant bulk. These thin-film conductive layers are integrated into the bracket structure, providing protection while maintaining a compact design.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP3286925B1Antenna mounting in an electronic device
Publication Date: 2022.12.07 INTERDIGITAL MADISON PATENT HLDG
  • EP3286925B1 patent drawingFigure 1
  • EP3286925B1 patent drawingFigure 2
  • EP3286925B1 patent drawingFigure 3

AI summary

A vertically oriented set top box is provided that includes a plurality of vertically oriented walls; a plurality of antennas adjacent to the vertically oriented walls; an antenna bracket being a polygonal structure having sides with antenna pocket that support the antennas; a printed circuit board having antenna connectors; and staging slots on one of the vertically oriented walls for temporarily holding the printed circuit board during assembly of the set top box, allowing antenna wires of the antennas to connect with the antenna connectors.