In-Vehicle Antenna Elastic Clamping for Stable Ground Contact
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Solution Overview
Problem
Existing in-vehicle antennas face challenges in easy installation and maintaining a stable ground contact during vehicle vibrations and impacts, as they typically require complex screwing methods and may not securely clamp the ground parts.
Innovation Solution
An in-vehicle antenna design featuring a ground part integrally connected to an element part with a clamping mechanism using elastic spring pieces that clamp the installation counterpart, allowing for simplified installation and stable ground contact through elastic force, preventing slipping and maintaining contact during vibrations and impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screwing method is used to fix the sheet metal antenna to the casing, then the antenna can be securely fixed, but the installation process becomes complex and time-consuming
Solution Approach 1:
The antenna structure is divided into separate functional parts: the sheet metal antenna element and the ground part with clamping mechanism. This segmentation allows the ground part to be independently designed with clamping functionality, separating the radiation function from the mounting function, thereby enabling simpler installation while maintaining secure fixation.
Solution Approach 2:
The clamping mechanism is designed to automatically clamp the ground part of the installation counterpart through elastic force without requiring external fastening operations. The elastic deformation of the ground part creates self-clamping action that secures the antenna to the casing, eliminating the need for screws or other complex fastening systems.
2Productivity
If simple installation method is used, then installation time is reduced, but the ground contact stability during vibration and impact deteriorates
Solution Approach 1:
The ground part is designed with elastic properties that allow it to deform under compression and maintain continuous contact pressure. By changing the mechanical parameter of the ground part from rigid to elastic, the system can accommodate vibrations and impacts while maintaining stable electrical contact, thus achieving both simple installation and reliable ground contact.
Solution Approach 2:
The clamping mechanism utilizes dynamic elastic deformation rather than static rigid connection. The ground part can dynamically adjust its clamping force in response to external vibrations and impacts, maintaining stable contact through continuous elastic adaptation, which ensures reliability while keeping the installation simple.
3Force
If elastic force is used for clamping, then the clamping force is enhanced and contact stability is improved, but the structural complexity of the antenna increases
Solution Approach 1:
The clamping function and ground function are merged into a single integrated ground part structure. The ground part simultaneously provides electrical grounding and mechanical clamping through its elastic deformation, eliminating the need for separate clamping components. This merging achieves enhanced clamping force without significantly increasing structural complexity.
Solution Approach 2:
The ground part is designed to perform multiple functions: providing electrical ground connection, generating clamping force through elastic deformation, and maintaining contact stability during vibrations. This multi-functionality allows a single component to achieve enhanced clamping force without adding separate specialized components, thus avoiding excessive structural complexity.
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 antenna simplifies installation, enhances clamping force, ensures stable ground contact, and prevents slipping, even under vibration and impact, while reducing the complexity of installation steps and material usage.
Implementation Method 1
a clamping part configured to clamp the installation counterpart together with the ground part with elastic force
Data Source
AI summary
An in-vehicle antenna is disclosed. The in-vehicle antenna is configured to be installed with an installation counterpart having a ground surface. The in-vehicle antenna has an element part, a ground part integrally connected to the element part, and a clamping part configured to clamp the installation counterpart together with the ground part with elastic force.