Board-to-Board Connector Grip Member for Damage-Free Insertion

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Solution Overview

Problem

The existing printed wiring board connection structures risk damaging the boards during connection and disconnection operations due to the mechanical stress applied.

Innovation Solution

A board-to-board connector system with a grip member and spacers that allows for controlled insertion and withdrawal of terminals, preventing damage by distributing the force efficiently and ensuring accurate alignment and depth of insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If boards are pushed downward to make connection via interboard connector or lifted upward to break connection, then connection and disconnection operations can be performed, but boards may be bent and damaged during these operations

Engineering Contradiction:
Improveconnection and disconnection operationVSAvoidboard integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The grip member serves as an intermediary tool between the operator and the board. Instead of directly pushing or lifting the board, the operator grips the grip member which transmits the force to the board through the connector assembly. This intermediary structure distributes the mechanical stress and provides better control, preventing board damage during connection and disconnection operations

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If force is applied directly to the board for connection operations, then connection can be made, but the board may be damaged due to concentrated stress

Engineering Contradiction:
Improveassembly speedVSAvoidboard structural strength
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

The grip member is divided into multiple functional segments: a grip portion for operator handling, connection portions for engaging the connector, and an extension portion for force transmission. This segmentation allows each part to perform its specific function efficiently - the grip portion provides leverage, the connection portions engage the connector terminals, and the extension portion transmits force along the connector axis, distributing stress away from the board

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3589088B1Electronic device and robot controller
Publication Date: 2023.04.12 KAWASAKI JUKOGYO KK
  • EP3589088B1 patent drawingFigure 1~2
  • EP3589088B1 patent drawingFigure 3
  • EP3589088B1 patent drawingFigure 4~5

AI summary

Provided is an electronic device including: a first board (1) configured as a printed circuit board having an electronic circuit component mounted thereon; a second board (2) configured as a printed circuit board having an electronic circuit component mounted thereon; a board-to-board connector (3) configured to electrically connect the first board and the second board, the board-to-board connector including a first terminal (31) provided on the first board and a second terminal (32) provided on the second board, the second terminal being configured to be connected to the first terminal; and a grip member (4) provided on the second board.