Conductive Cable Fixing Member for Grounding in Compact Electronics
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Solution Overview
Problem
It is challenging to provide a stable operating environment in downsized electronic devices, such as mobile communication terminals or tablet PCs, due to issues like static electricity causing malfunctions or damage to integrated circuit chips and discomfort to users.
Innovation Solution
Incorporating a conductive fixing member made of conductive material to electrically connect coaxial cables and flexible printed circuit boards with the device housing, providing a stable grounding environment and mitigating static electricity effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electronic device is downsized to enhance portability, then the device size is reduced, but the stability of the operating environment deteriorates due to static electricity and electromagnetic interference
Solution Approach 1:
A conductive fixing member is introduced as an intermediary component between the coaxial cable and the housing. This fixing member provides a dedicated grounding path that mediates the electrical connection, ensuring stable grounding for the coaxial cable even in the compact device structure. The fixing member acts as a bridge that maintains reliable electrical connectivity without requiring additional space.
Solution Approach 2:
The conductive fixing member is electrically connected to both the coaxial cable and the housing, creating an equipotential connection. This ensures that the coaxial cable and housing are at the same electrical potential, preventing static electricity accumulation and electromagnetic interference. The equipotential connection stabilizes the operating environment by eliminating potential differences that could cause electrical issues.
2Device complexity
If conventional insulating fixing members are used, then the device structure is simple, but electromagnetic interference and noise generation increase due to lack of grounding
Solution Approach 1:
The fixing member's material parameter is changed from insulating to conductive. This parameter change transforms the fixing member's function from merely mechanical support to simultaneous mechanical support and electrical grounding. The conductive property enables the fixing member to provide a grounding path, thereby reducing electromagnetic interference and noise without adding structural complexity.
Solution Approach 2:
The conductive fixing member serves multiple functions: it provides mechanical support for the coaxial cable, ensures electrical grounding, and reduces electromagnetic interference. By combining these functions into a single component, the design achieves effective EMI suppression without increasing device complexity. The fixing member becomes a multi-functional element that addresses both mechanical and electrical requirements.
3Object-generated harmful factors
If complex grounding structures are implemented, then electromagnetic interference is suppressed, but the ease of installation and repair deteriorates
Solution Approach 1:
The grounding function is merged with the mechanical fixing function into a single conductive fixing member. Instead of having separate grounding components and fixing components, the patent combines them into one element. This merging simplifies the installation process as only one component needs to be installed, and it also simplifies repair as the same component can be easily replaced without complex grounding procedures.
Solution Approach 2:
The conductive fixing member automatically provides grounding functionality as part of its inherent structure, without requiring additional grounding wires or complex connections. The fixing member itself serves the grounding purpose through its conductive material and contact with the housing, making the system self-sufficient and easier to manufacture and maintain.
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
The conductive fixing member suppresses electromagnetic interference, noise generation, and ensures a stable operating environment by grounding adjacent components, while being easily installable and repairable even in narrow spaces.
Implementation Method 1
a fixing member comprising a conductive material having electrical conductivity and disposed in the housing surrounding at least a portion of the coaxial cable, and configured to electrically connect the coaxial cable and the flexible printed circuit board with the housing
Implementation Method 2
The fixing member may be configured to electrically connect the coaxial cable and the flexible printed circuit board with the housing... suppress electromagnetic interference or noise generation and provide a stable operating environment by providing a stable grounding environment
Data Source
AI summary
According to an embodiment of the disclosure, an electronic device may comprise: a housing including a front surface facing a first direction, a rear surface facing in a second direction opposite to the first direction, and a side structure including a side surface at least partially surrounding a space between the front surface and the rear surface, a coaxial cable at least partially disposed in the housing, a fixing member comprising a conductive material having electrical conductivity and disposed in the housing surrounding at least a portion of the coaxial cable, and an electrical/electronic component disposed in the housing and including a body portion at least partially disposed in the housing and a flexible printed circuit board extending from the body portion. The fixing member may be configured to electrically connect the coaxial cable and the flexible printed circuit board with the housing.