Modular Computing Device Backplane with Capacitive Interface

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Solution Overview

Problem

Existing mobile devices lack a modular and flexible architecture that allows for easy customization and integration of various components without the need for a physical enclosure, limiting their functionality and versatility.

Innovation Solution

A computing device with a backplane that supports user-removable modules, enabling power transfer and communication between modules, and allowing for modular configurations without a physical housing, using a grid system with rails to accommodate different module sizes and orientations, and securing modules via electro-permanent magnets or mechanical mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a physical enclosure is used to house components, then device structure is stable and protected, but device flexibility and customization capability deteriorate

Engineering Contradiction:
Improvecustomization capabilityVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The device is divided into separate functional modules (display module, camera module, battery module, etc.) that can be independently selected and configured. Each module has standardized interface blocks with capacitive pads for data transfer and power contact pads, allowing modular assembly without a fixed physical enclosure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The interface blocks are designed with universal capacitive pads and contact pads that can work with different module types. The same interface structure supports various functionalities (display, camera, power) through different module configurations, eliminating the need for custom enclosures for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If ground contact pad is positioned closer to insertion contact surface, then grounding is established first for safety, but manufacturing precision requirements increase

Engineering Contradiction:
Improvegrounding safetyVSAvoidcontact alignment precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The ground contact pad is positioned closer to the insertion contact surface so that grounding is established before power contact during module insertion. This preliminary grounding ensures safety by preventing electrostatic discharge or power surges before the module is fully connected.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The ground contact pad is made larger than the power contact pad and positioned asymmetrically closer to the insertion surface. This asymmetric design provides both safety (earlier grounding) and manufacturing tolerance compensation, as the larger ground pad area allows for greater alignment variation.

Inventive Principle:
Principle #4Asymmetry

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables modular customization of devices, providing a flexible and versatile platform for integrating various functionalities, such as display, communication, and power modules, while maintaining a compact form factor and efficient power management.

Implementation Method 1

securing modules via electro-permanent magnets or mechanical mechanisms

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

multiple capacitive pads that each include data contacts to enable data transfer

Methodology Applied
Scientific EffectCapacitive coupling: Capacitance

Implementation Method 3

a power contact pad to provide or receive power

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS10162388B2Modules and connections for modules to couple to a computing device
Publication Date: 2018.12.25 GOOGLE LLC
  • US10162388B2 patent drawing
  • US10162388B2 patent drawing
  • US10162388B2 patent drawing

AI summary

Examples herein include modules and connections for modules to couple to a computing device. An example module includes a housing comprising an end to couple to a computing device, multiple capacitive pads that each include data contacts to enable data transfer, a power contact pad to provide or receive power, and a ground contact pad to couple to ground. The ground contact pad is larger in size than the power contact pad, and the ground contact pad is positioned closer than the power contact pad to the end of the housing configured to couple to the computing device.