Antenna Mounting Assembly for Sloped Vehicle Panels
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Solution Overview
Problem
Vehicle manufacturers face challenges in designing antenna mounting assemblies that effectively manage lateral forces on mast-type antennas due to non-normal orientations of vehicle body panels, particularly from strong winds, precipitation, and car wash elements.
Innovation Solution
The proposed antenna mounting assemblies include a base with a flange and tabs that mateably engage with the vehicle body panel, providing a sturdy mounting point and managing lateral forces through a recess configuration that secures the antenna in place, even on sloped surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a mast type antenna is mounted on a sloped body panel, then the antenna can extend in vertical orientation with respect to the vehicle, but lateral forces from wind, precipitation, and car wash elements act on the antenna mounting assembly
Solution Approach 1:
The mounting assembly is divided into distinct functional segments: the shaft portion for vertical extension, the flange for lateral force distribution, and the tabs for localized panel engagement. This segmentation allows each component to specialize in managing specific forces, with the flange handling broad lateral loads and tabs providing focused anchoring points.
Solution Approach 2:
The design transitions from a simple vertical mounting to a multi-dimensional force management system. The flange extends radially outward to distribute forces in the lateral dimension, while tabs engage the panel at specific points to anchor against lateral movement. This adds dimensional complexity to force distribution without compromising the vertical antenna orientation.
2Adaptability or versatility
If the body panel is not normal to the antenna axis, then the antenna can be mounted on sloped surfaces, but the mounting assembly experiences increased lateral forces
Solution Approach 1:
The mounting assembly serves multiple functions simultaneously: it provides vertical antenna support, distributes lateral forces across the flange, anchors to the panel through tabs, and adapts to sloped surfaces. This multi-functionality allows a single design to handle both the adaptability requirement for various panel orientations and the force management challenge.
Solution Approach 2:
The flange acts as an intermediary between the vertical shaft and the sloped panel surface. It transfers and distributes lateral forces from the shaft across a broader area of the panel, while the tabs provide intermediate anchoring points. This intermediary structure mediates the force transfer between the antenna and the panel, reducing concentrated stresses.
3Reliability
If a flange with tabs is used to manage lateral forces, then the antenna mounting assembly can securely engage the body panel, but the device complexity increases
Solution Approach 1:
The design merges multiple force management functions into a single integrated flange-tab assembly. Rather than using separate components for lateral force distribution and panel anchoring, the flange and tabs are combined into one structure that performs both functions simultaneously, reducing the number of parts while maintaining reliability.
Solution Approach 2:
The tabs provide localized engagement points with the panel, concentrating anchoring forces at specific positions around the aperture perimeter. This local quality approach allows the mounting assembly to achieve secure engagement through focused contact points rather than requiring a complex distributed fastening system across the entire flange area.
Data Source
AI summary
Embodiments are provided of antenna mounting assemblies and vehicles that include such assemblies. In one aspect, an antenna mounting base for supporting a vehicle antenna with respect to a vehicle body panel that defines a panel aperture comprises: an antenna mounting portion; a flange extending from a surface of the antenna mounting base; and at least one tab defining a recess with the flange, the recess being sized and configured to mateably engage at least a portion of the body panel that borders the panel aperture.