Portable Power Analyzer Insulating-Shielding-Insulating Structure
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Solution Overview
Problem
Conventional power analyzers are large due to safety insulation requirements, making them desktop devices rather than portable, and lack desirable electromagnetic compatibility.
Innovation Solution
A portable power analyzer design with insulating-shielding-insulating structures and conductive shielding frames that maintain safe electrical distances and reduce electromagnetic interference, allowing for compact size while meeting insulation performance and electromagnetic compatibility standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sufficient distance and space are maintained between different channels to meet insulation rating requirements, then safety insulation performance is improved, but device size increases making it non-portable
Solution Approach 1:
The patent applies nesting by placing conductive shielding frames inside insulating housings, and positioning multiple channels in a stacked configuration where each channel is enclosed within its own insulating housing. This nested structure allows channels to be closely spaced while maintaining insulation barriers, enabling compact device size without compromising safety insulation performance.
Solution Approach 2:
The patent introduces conductive shielding frames as intermediary elements between different channels. These shielding frames act as mediators that provide both electromagnetic shielding and contribute to the insulation structure, allowing channels to be positioned closer together while maintaining required insulation ratings through the intermediary shielding and insulating layers.
2Volume of moving object
If channels are positioned closely together to reduce device size, then portability is improved, but electromagnetic interference between channels increases
Solution Approach 1:
Each channel is nested within its own conductive shielding frame that is enclosed by an insulating housing. This nested shielding structure contains electromagnetic fields within each channel, preventing interference with adjacent channels even when positioned closely together, thus enabling compact device size while maintaining electromagnetic compatibility.
Solution Approach 2:
Conductive shielding frames serve as intermediary shielding structures between adjacent channels. These shielding frames intercept and redirect electromagnetic fields, acting as mediators that prevent direct electromagnetic coupling between closely-spaced channels, thereby reducing interference while allowing compact channel positioning.
3Ease of operation
If distance between channels is reduced for compact design, then device portability is improved, but safe electrical distance requirements may be compromised
Solution Approach 1:
The patent implements a nested structure where conductive shielding frames are enclosed within insulating housings for each channel. This nested configuration provides multiple layers of protection (shielding frame + insulating housing) that maintain safe electrical isolation between channels even when the overall device size is reduced for portability.
Solution Approach 2:
The patent employs composite insulation structures combining conductive shielding materials and insulating housing materials. This composite approach provides both electromagnetic shielding and electrical insulation in a compact integrated structure, maintaining safe electrical distances while enabling portable device size through the synergistic combination of different material properties.
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 enables a smaller, portable power analyzer that meets safety and electromagnetic compatibility requirements, providing efficient measurement capabilities in a compact form factor.
Implementation Method 1
Each channel may include a conductive shielding frame surrounded by an insulating housing
Implementation Method 2
Each channel may include a conductive shielding frame surrounded by an insulating housing
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
The present application relates to an electronic measuring device comprising a main printed circuit assembly and one or a plurality of channel modules. At least one channel module comprises: a channel printed circuit board; a first insulating housing disposed on the channel printed circuit board, the first insulating housing defining a cavity covering at least part of electrical elements mounted on the channel printed circuit board; a first conductive shielding frame at least partially disposed on the first insulating housing and separated from the channel printed circuit board via the first insulating housing, the first conductive shielding frame covering the at least part of electrical elements mounted on the channel printed circuit board; and a second insulating housing disposed on the first conductive shielding frame and configured to sandwich the first conductive shielding frame between the second insulating housing and the first insulating housing, so as to lengthen an electrical path from the first conductive shielding frame to the channel printed circuit board.