In-Vehicle Fixation Guide for Card PC Vibration Resistance

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Solution Overview

Problem

Existing in-vehicle fixation structures for small information terminal devices are complex to attach/detach and lack sufficient vibration resistance, leading to potential contact failures and disengagement due to vehicle vibrations.

Innovation Solution

An in-vehicle fixation structure featuring a detection sensor, a fixation guide, and a controller that presses and holds the device from multiple sides, and connects it to an external device via a guided connector engagement, ensuring secure attachment and vibration resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a vibration attenuating means is used to mount the information terminal device, then vibration resistance is improved, but the attachment and detachment process becomes complicated

Engineering Contradiction:

Improvevibration resistanceVSAvoidattachment and detachment process

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The fixation guide is divided into multiple pressing portions that independently press opposite side surfaces of the information terminal device. This segmentation allows the system to achieve stable fixation through multiple distributed contact points, improving vibration resistance while maintaining a simple attachment process where the device is merely placed on the mounting stage.

Inventive Principle:

Principle #1Segmentation

2Reliability

If the information terminal device is securely fixed to prevent disengagement, then connection reliability is improved, but the device complexity increases

Engineering Contradiction:

Improveconnection stabilityVSAvoidfixation structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The fixation guide automatically performs the fixation function when the information terminal device is placed on the mounting stage. The pressing portions naturally press the side surfaces of the device, and the connectors automatically engage without requiring additional manual operations. This self-service mechanism achieves secure fixation while keeping the structure simple.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The fixation guide integrates multiple functions into a single component: it provides pressing force through multiple pressing portions, guides the position of the information terminal device, and facilitates connector engagement. This merging of functions reduces overall device complexity while maintaining connection stability.

Inventive Principle:

Principle #5Merging (Combining)

3Stability of the object's composition

If multiple pressing portions are used to press opposite side surfaces, then fixation stability is improved, but the manufacturing complexity increases

Engineering Contradiction:

Improvefixation stabilityVSAvoidfixation guide manufacturing

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The fixation guide can be implemented as a flexible or elastic component that naturally forms multiple pressing portions. This allows the complex multi-point pressing structure to be manufactured as a single integrated piece using molding or forming processes, rather than requiring assembly of multiple rigid components, thereby simplifying manufacturing while maintaining fixation stability.

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentUS10673196B2In-vehicle fixation structure

Publication Date: 2020.06.02 TOYOTA JIDOSHA KK

AI summary

A card PC is pressed and held with a fixation guide from right and left sides and from the top, so that the card PC is securely fixed at a normal position, with reduced influence of vibration. After the card PC is placed at a normal position, a connector of an external device is moved to a connector of the card PC, so as to securely connect the card PC to the external device. This accordingly prevents disengagement of the connectors or other similar problems that would otherwise occur due to imperfect connection between the connectors.