Conductive Power Pack Surface for Electromagnetic Shielding

Solution Overview

Problem

Electric shielding enclosures in electronic devices increase size and weight, limiting design flexibility and manufacturability, while also failing to effectively protect against electromagnetic interference and electrostatic discharge.

Innovation Solution

Incorporating a conductive power pack surface as part of the electric shielding enclosure, which provides electrical isolation and shields against electromagnetic interference by being electrically coupled to the ground potential, thereby reducing the need for additional shielding components and enhancing protection against electrostatic discharge.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional electric shielding enclosures are used to protect sensitive components, then protection against electromagnetic interference and electrostatic discharge is improved, but device size and weight increase

Engineering Contradiction:

Improveprotection against electromagnetic interference and electrostatic dischargeVSAvoiddevice weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent merges the power pack housing with the electric shielding enclosure, making the power pack housing itself serve as the shielding enclosure. This eliminates the need for a separate shielding enclosure, thereby reducing device weight while maintaining protection against electromagnetic interference and electrostatic discharge.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The power pack housing is designed to perform multiple functions: it serves as both the protective housing for the power pack and as the electric shielding enclosure for sensitive components. This multi-functionality reduces the number of separate components needed, decreasing overall device weight.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If traditional electric shielding enclosures are used to protect sensitive components, then protection against electromagnetic interference and electrostatic discharge is improved, but device volume increases

Engineering Contradiction:

Improveprotection against electromagnetic interference and electrostatic dischargeVSAvoiddevice volume

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The patent merges the power pack housing with the electric shielding enclosure, making the power pack housing itself serve as the shielding enclosure. This eliminates the need for a separate shielding enclosure, thereby reducing device volume while maintaining protection against electromagnetic interference and electrostatic discharge.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The power pack housing is designed to perform multiple functions: it serves as both the protective housing for the power pack and as the electric shielding enclosure for sensitive components. This multi-functionality reduces the number of separate components needed, decreasing overall device volume.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If separate shielding components are added to protect against electromagnetic interference, then protection effectiveness is improved, but device complexity increases

Engineering Contradiction:

Improveprotection against electromagnetic interferenceVSAvoidshielding structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the power pack housing with the electric shielding enclosure, eliminating the need for separate shielding components. This simplification reduces device complexity while maintaining protection effectiveness through the inherent conductive properties of the power pack housing material.

Inventive Principle:

Principle #5Merging (Combining)

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 approach allows for more compact and lightweight device designs, effectively shielding sensitive components from electromagnetic interference and electrostatic discharge, while reducing the Specific Absorption Rate and improving hearing-aid compatibility.

Implementation Method 1

Incorporating a conductive power pack surface as part of the electric shielding enclosure, which provides electrical isolation and shields against electromagnetic interference by being electrically coupled to the ground potential

Methodology Applied

Scientific EffectElectromagnetic shielding: Faraday Cage

Implementation Method 2

enhancing protection against electrostatic discharge

Methodology Applied

Scientific EffectElectrostatic discharge protection: Electrostatic Discharge

Data Source

PatentUS9247681B2Electric shielding enclosure including power pack

Publication Date: 2016.01.26 MALIKIE INNOVATIONS LTD

AI summary

An electric shielding enclosure that encloses a volume. The electric shielding enclosure includes a conductive structure that partially encloses the volume and that has an edge defining an opening into the volume. A conductive power pack surface is configured to fill at least a part of the opening and has a number of conductive connections. The conductive connections include a first conductive connection located in proximity to a first point of the edge, and a second conductive connection located in proximity to a second point of the edge, where the second point is across the opening from the first point. Each of the conductive connections within the conductive connections is electrically coupled to the conductive structure.