Vehicular Antenna Pad with Postural Adjusting Member
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Solution Overview
Problem
Conventional vehicular shark fin antenna devices attached to vehicle roofs often result in a clearance gap between the antenna cover and the roof due to uneven pressure distribution, leading to an inferior appearance and potential roof deformation.
Innovation Solution
Incorporating a postural adjusting member in the elastomer pad between the antenna unit and cover, which compresses elastically to adjust the antenna's position, ensuring proper attachment without gaps and maintaining a sleek appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional elastomer pad is used to attach the antenna device to the roof, then the antenna device can be securely attached, but clearance gaps appear between the antenna cover and the roof due to uneven pressure distribution
Solution Approach 1:
The pad is designed with locally differentiated properties through the postural adjusting member, which has varying compression characteristics at different locations. This allows the pad to provide different levels of support and pressure distribution across the attachment interface, preventing clearance gaps while maintaining secure attachment.
Solution Approach 2:
The postural adjusting member changes the physical parameters of the pad by introducing variable elasticity and compression resistance. When compressed during attachment, it modifies the pressure distribution profile, enabling the antenna cover to maintain full contact with the roof surface without gaps.
2Shape
If the antenna device is attached tightly to prevent gaps, then the appearance is improved, but the roof may deform due to concentrated pressure
Solution Approach 1:
The postural adjusting member acts as a pre-designed cushioning element within the pad structure. It is configured to compress and absorb excess pressure before it can be transmitted to the roof, thereby preventing roof deformation while still achieving tight contact between the antenna cover and roof for improved appearance.
3Device complexity
If a simple elastomer pad structure is used, then the device complexity is reduced, but the ability to adjust antenna posture and prevent gaps is insufficient
Solution Approach 1:
The postural adjusting member is designed to automatically perform posture adjustment functionality through its elastic compression characteristics. When the antenna device is installed, the member self-adjusts by compressing and exerting restoring force, eliminating the need for manual adjustment mechanisms while preventing clearance gaps.
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 solution effectively prevents clearance gaps between the antenna cover and the roof, enhancing the appearance and stability of the antenna device while maintaining secure attachment.
Implementation Method 1
The postural adjusting member is arranged and constructed to be elastically compressed in a condition in which the antenna device is attached to a roof of a vehicle
Data Source
AI summary
A vehicular antenna device includes an antenna unit transmitting and receiving various electromagnetic waves or signals, an antenna cover configured to cover the antenna unit, and a pad attached to an inner peripheral surface of the antenna cover. The antenna unit is attached to the antenna cover with the pad disposed therebetween. The pad includes a postural adjusting member formed therein. The postural adjusting member is configured to be elastically compressed in a condition in which the antenna device is attached to a roof of a vehicle.