Noise Suppression Sheet Layout With Clearance Area for Device Placement

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Solution Overview

Problem

Existing noise suppression shields, such as those described in JP 2013-214705A, have high-density comb-like conductors that prevent other devices from being disposed in the same area, leading to interference issues.

Innovation Solution

A noise suppression sheet with a substrate featuring a conductor pattern of linear patterns and connection patterns, including a clearance area with a through hole, allowing for reduced interference by enhancing noise suppression while accommodating other devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If comb-like conductors are arranged in high density to improve noise suppression, then noise suppression performance is improved, but other devices cannot be disposed in this area

Engineering Contradiction:

Improvenoise suppression performanceVSAvoiddevice placement flexibility

Core Design Contradiction:

Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The conductor pattern is segmented into multiple linear patterns arranged in parallel, creating distinct regions. The clearance area is formed by the spacing between these linear patterns, allowing functional separation between noise suppression zones and device placement zones within the same shield structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the shield have different properties: the linear pattern regions provide noise suppression functionality, while the clearance area provides space for other devices. This local differentiation allows each region to serve its specific purpose while contributing to the overall system performance.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If clearance area is created to accommodate other devices, then device placement flexibility is improved, but noise suppression effectiveness may be reduced

Engineering Contradiction:

Improvedevice placement flexibilityVSAvoidnoise suppression effectiveness

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The shield structure achieves multi-functionality by integrating both noise suppression and device accommodation capabilities within a single configuration. The conductor pattern provides electromagnetic shielding while the clearance area simultaneously provides space for other devices, making the structure universally applicable to diverse electronic assembly requirements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20230307963A1Noise suppression sheet and electric circuit device having the same

Publication Date: 2023.09.28 TDK CORP

AI summary

Disclosed herein is a noise suppression sheet that includes a substrate having a first through hole, and a conductor pattern provided on one surface of the substrate. The conductor pattern has a plurality of linear patterns extending in a first direction and a connection pattern connecting the plurality of linear patterns. The one surface of the substrate has a clearance area surrounded by the plurality of linear patterns and having no conductor pattern. The size of the clearance area in a second direction different from the first direction is larger than an arrangement pitch between the plurality of linear patterns in the second direction. The first through hole is formed in the clearance area.