Cable Structure Antenna Integration for Interference Shielding

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Solution Overview

Problem

Existing communication modules in electrical devices are vulnerable to shielding by metal shells, interference from other electronic components, and high temperatures, leading to reduced communication ability and aesthetic issues due to the need for external antennas and increased device size.

Innovation Solution

A cable structure with a power cord and a detachable shell that houses the antenna and communication module, protecting them from damage and interference while maintaining the device's appearance and functionality, and allowing for flexible positioning and easy maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the communication module is designed inside the electrical device, then the device structure is compact, but the communication module is shielded by the metal shell and interfered by other electronic components

Engineering Contradiction:
Improvedevice sizeVSAvoidcommunication ability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The communication module is separated from the main electrical device body and integrated into the power cord assembly. This segmentation allows the communication module to be positioned outside the metal shell's interference zone while maintaining a compact overall structure through the cord's flexible connection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The power cord acts as an intermediary carrier for the communication module. By placing the module in the cord rather than directly in the device housing, the cord serves as a buffer that isolates the sensitive communication components from both the metal shell shielding and internal electronic interference while maintaining structural compactness.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the communication module is designed on the shell of the electrical device, then the communication module is accessible, but the communication ability is influenced by the metal shell and affected by high temperature

Engineering Contradiction:
Improvemodule accessibilityVSAvoidcommunication stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The communication module is extracted from both the device interior and the shell surface, and relocated to the power cord. This extraction removes the module from environments with metal shell shielding and high temperature exposure, while the cord provides a protected pathway that maintains accessibility without compromising communication stability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of placing the communication module in the traditional two-dimensional plane of the device shell surface or interior, the module is positioned in a different spatial dimension along the power cord extension. This dimensional relocation allows the module to be outside the harmful electromagnetic and thermal zones while remaining functionally connected.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If the antenna is led out alone and designed at the outside of the electrical device, then the communication module can work outside the device, but the appearance consistency is affected and the device size is increased

Engineering Contradiction:
Improvecommunication functionVSAvoidappearance consistency
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The antenna and communication module are merged into a single integrated assembly that is combined with the power cord. This merging allows the communication components to work together outside the device body without requiring separate external antenna structures, thereby maintaining appearance consistency while ensuring communication functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The power cord is given multiple functions: it serves both as the power supply connection and as the mounting structure for the communication module and antenna. This multi-functionality eliminates the need for separate external communication components that would compromise appearance, while still providing reliable external communication capability.

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

4Reliability

If the antenna is mounted at the outside of the electrical device, then the antenna can transmit signals, but the antenna is liable to damage

Engineering Contradiction:
Improvesignal transmissionVSAvoidantenna durability
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The antenna is nested within the power cord assembly rather than being exposed externally. The cord's insulation and structural layers protect the antenna from physical damage, environmental factors, and accidental contact, while the antenna remains positioned to transmit signals effectively for communication functionality.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP3429034B1Cable structure, power cord structure, and electrical device
Publication Date: 2022.06.22 GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD
  • EP3429034B1 patent drawingFigure 1~3
  • EP3429034B1 patent drawingFigure 4

AI summary

The present invention provides a cable structure, a power cord structure and an electrical device, wherein the cable structure includes: a power cord, a shell arranged on the power cord, and an antenna arranged in the shell. According to the cable structure provided by the present invention, as the antenna is arranged in the shell and does not need to be exposed to the outside, so that the antenna can be protected from being damaged easily, and the antenna works in a good environment, thereby guaranteeing the working reliability and stability of the antenna; meanwhile, the shell is arranged on the power cord, so the electrical device does not need to be provided with additional antenna devices, thereby guaranteeing the beauty of the overall appearance, guaranteeing convenience for carrying and improving the user experience. Further, the shell is arranged on the power cord, the position of the shell can be at the middle, the front or different positions satisfying requirements of the power cord, therefore different needs of a user can be satisfied, and the application range is wide.