Wireless USB Data Transfer for Holeless Corrosion-Resistant Devices

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Solution Overview

Problem

Electronic devices with USB Type-C ports are prone to electrochemical corrosion due to liquid ingress, leading to high failure rates and affecting performance.

Innovation Solution

Implement a wireless communication module within the device to establish a wireless connection channel for data transmission, eliminating the need for a physical data transmission interface and preventing corrosion-related failures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If USB Type-C ports are used for data transmission, then data transmission capability is improved, but corrosion failure rate increases due to liquid ingress

Engineering Contradiction:

Improvedata transmission capabilityVSAvoidcorrosion failure rate

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent removes the physical USB Type-C data transmission interface from the electronic device housing. By extracting this interface, the device eliminates the vulnerability to liquid ingress while maintaining data transmission capability through wireless communication modules that establish connection channels without requiring physical openings in the housing.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical USB Type-C physical interface with a wireless communication system. Instead of using a physical connector that can be exposed to liquids, the device uses wireless communication modules to establish data transmission channels through electromagnetic fields, thereby substituting a mechanical system with a non-contact electromagnetic system that is immune to corrosion.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If USB Type-C ports are provided on housing, then data transmission interface is available, but interface corrosion affects usage experience

Engineering Contradiction:

Improvedata transmission interface availabilityVSAvoidinterface corrosion

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and removes the USB Type-C data transmission interface from the housing structure. This elimination of the physical interface prevents liquid from entering through the port while wireless communication modules provide alternative data transmission capability without requiring exposed openings in the housing.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements a holeless housing design where the housing acts as a protective shell that completely encloses the internal components including wireless communication modules. This sealed housing structure prevents liquid ingress while maintaining aesthetic appearance and structural integrity, replacing the need for physical data transmission openings.

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If wireless communication module is implemented without data transmission interface, then corrosion is prevented, but device complexity increases

Engineering Contradiction:

Improvecorrosion preventionVSAvoidwireless communication module integration

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates wireless communication modules that serve multiple functions: they enable both data transmission and charging capabilities without requiring separate physical interfaces. This multi-functionality reduces the need for additional components and simplifies the overall device structure while maintaining corrosion prevention through the holeless design.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines data transmission and charging functions into a unified wireless communication system. By merging these functions and implementing them within the existing housing structure without additional openings, the device reduces complexity compared to having separate wired interfaces for each function while maintaining reliable corrosion prevention.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4645103A1Data transmission methods, electronic devices, and wireless communication devices

Publication Date: 2025.11.05 BEIJING XIAOMI MOBILE SOFTWARE CO LTD

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AI summary

The present disclosure provides a data transmission method, an electronic device, and a wireless communication device. The electronic device includes a housing and a wireless communication module, the housing being provided with no data transmission interface, where the wireless communication module is configured to establish a wireless connection channel with an external wireless communication device, the wireless connection channel being configured to transmit signals for a signal line of the electronic device and a signal line of the wireless communication device; the wireless communication module is further configured to establish a USB transmission channel upon successful establishment of the wireless connection channel; and the wireless communication module is further configured to transmit USB data via the USB transmission channel.