Substrate Mounting Structure for Stable Ground Plate Grounding

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Solution Overview

Problem

Existing mounting structures for substrates such as amplifier substrates to ground plates, like vehicle frames, require improved stability and ease of attachment, while ensuring reliable electrical grounding.

Innovation Solution

A mounting structure with an accommodation portion, fastening portion, locking portion, and restricting portion that stabilizes the substrate to the ground plate through a locking mechanism and restricts movement during fastening, enhancing electrical connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the accommodation portion and ground plate are fastened using conventional fastening portions, then the mounting work can be completed, but the grounding stability is insufficient

Engineering Contradiction:

Improvegrounding stabilityVSAvoidmounting work difficulty

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The fastening portion is divided into a locking portion and a restricting portion. The locking portion engages with the ground plate to provide stable grounding, while the restricting portion limits the movement direction during fastening operations, ensuring both reliability and ease of operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The locking portion acts as an intermediary element between the accommodation portion and the ground plate. It transfers and stabilizes the grounding connection while the restricting portion mediates the fastening operation by controlling movement directions.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the locking portion is allowed to move freely during fastening operation, then the assembly is flexible, but the grounding stability deteriorates

Engineering Contradiction:

Improvegrounding stabilityVSAvoidmovement restriction mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The locking portion is segmented with a restricting portion that specifically limits movement in certain directions while allowing engagement with the ground plate. This segmentation provides grounding stability without requiring complex overall device structures.

Inventive Principle:

Principle #1Segmentation

3Manufacturing precision

If multiple fastening operations are performed without movement restriction, then the assembly process is simple, but the contact point variation increases

Engineering Contradiction:

Improvecontact point consistencyVSAvoidassembly process complexity

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The fastening portion is segmented into locking and restricting functions. The restricting portion ensures consistent contact points by limiting movement directions during fastening operations, achieving manufacturing precision without significantly complicating the assembly process.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The restricting portion automatically limits movement directions during the fastening operation itself, providing self-service functionality that ensures contact point consistency without requiring additional external constraints or complex assembly procedures.

Inventive Principle:

Principle #25Self-service

Data Source

PatentEP4685358A1Mounting structure and antenna device

Publication Date: 2026.01.28 YOKOWO CO LTD

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AI summary

A mounting structure including an accommodation portion accommodating a substrate, a fastening portion to fasten the accommodation portion and a ground plate to each other, a locking portion to be locked to the ground plate by a fastening operation of the fastening portion, and a restricting portion to restrict a movement direction of the locking portion during the fastening operation of the fastening portion.