Mobile Device USB Hub Attachment Apparatus

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Solution Overview

Problem

USB hubs connected to mobile devices via limited connectors often flex and disconnect due to weight, especially with newer USB-C hubs that have a smaller shape and size, limiting power delivery and data transfer capabilities.

Innovation Solution

A U-shape or L-shape attachment apparatus that grips the side of a mobile device, using materials like aluminum, steel, or ABS plastic, with screws, magnets, or snap-fit mechanisms to securely attach and support the weight of USB hubs, preventing flexing and disconnection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If USB hubs are connected to mobile devices through limited connectors, then the mobile device can support additional components and functions, but the connector and port flex and disconnect due to the weight of the hub

Engineering Contradiction:

Improveability to support additional componentsVSAvoidconnector connection stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The support function is segmented from the connector itself. The attachment apparatus includes a separate support structure (first support member) that is connected to the mobile device body, distinct from the connector assembly. This segmentation allows the connector to remain lightweight while the support structure bears the hub's weight, resolving the contradiction between versatility and connection reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The attachment apparatus acts as an intermediary between the mobile device and the USB hub. It includes a first connection interface that connects to the mobile device and a second connection interface that connects to the USB hub, with a support structure in between. This intermediary structure distributes the hub's weight through the mobile device body rather than concentrating it on the connector, maintaining both versatility and reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Power

If USB-C hubs with smaller shape and size are used, then power delivery and data transfer capabilities are enhanced, but the smaller surface area limits weight force distribution causing increased flexing

Engineering Contradiction:

Improvepower delivery capabilityVSAvoidport surface area for weight distribution

Core Design Contradiction:

PowerVSArea of stationary object

Solution Approach 1:

The solution moves the weight distribution function from the two-dimensional port surface to a three-dimensional structural support system. The attachment apparatus extends into the space between the mobile device and the hub, creating a rigid support framework that distributes weight forces through multiple points and structural elements rather than relying solely on the small port surface area. This dimensional transition enables USB-C hubs to maintain high power delivery capabilities while preventing connector flexing.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS10971875B2Apparatus and method of securing adapters to a mobile device

Publication Date: 2021.04.06 TARGUS INTERNATIONAL LLC

AI summary

A novel apparatus for securing a USB hub to a mobile device that comprises a vertical plate; a top horizontal plate and a bottom horizontal plate; the vertical plate and the top and bottom horizontal plates are fused together to form an elongated channel; three through holes on the vertical plate; and at least two screws for attaching said apparatus to a side of a mobile device.