Vehicle Door Antenna Mounting Bracket and Adhesive Fixation
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Solution Overview
Problem
Antennas attached to vehicle door frames are prone to loosening due to shock and vibrations, leading to reduced sensitivity, especially when the door frame obstructs radio waves, and securing fixing devices is challenging in limited space, increasing manufacturing costs.
Innovation Solution
The antenna is fixed to the door frame using double-sided adhesive tape, and a bracket with a cable opening that prevents the antenna from passing through is used to catch the antenna if it loosens, preventing it from falling and maintaining stability with a counterface for support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna is attached to the door frame, then the antenna sensitivity is improved, but the antenna is likely to come loose due to shock and vibrations from door opening and closing
Solution Approach 1:
The bracket is installed beforehand on the door frame to create a protective structure that prevents the antenna from falling if the adhesive tape fails. This prior cushioning measure ensures that even when the primary attachment method deteriorates, the antenna remains contained within the bracket structure, maintaining its functional position and sensitivity.
2Stability of the object's composition
If fixing devices such as attaching parts or bolts are used to firmly attach the antenna, then the antenna attachment stability is improved, but the manufacturing complexity and costs increase
Solution Approach 1:
The bracket serves multiple functions simultaneously: it acts as a structural support element, a protective enclosure for the antenna, and a manufacturing fixture. By merging these functions into a single component that can be pre-installed on the door frame, the invention eliminates the need for separate fixing devices like bolts or attaching parts, thereby reducing manufacturing complexity while maintaining attachment stability.
3Stability of the object's composition
If fixing devices such as attaching parts or bolts are used to firmly attach the antenna, then the antenna attachment stability is improved, but the manufacturing costs increase
Solution Approach 1:
The bracket is pre-installed on the door frame during the door assembly manufacturing process, before the antenna is attached. This preliminary action allows the antenna to be simply affixed to the existing bracket structure using minimal fixation methods, significantly reducing the complexity and cost of the final assembly process while ensuring stable antenna attachment.
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
This configuration ensures the antenna remains firmly attached even in limited space, preventing it from falling and maintaining communication range while reducing manufacturing complexity and costs.
Implementation Method 1
The antenna is fixed by double-sided adhesive tape on an outer face of a section of the door frame that extends in the up-down direction.
Data Source
AI summary
The vehicle includes a side door with a window, an antenna, and a bracket. The side door includes an outer panel located downward from the window and a door frame extending along the perimeter of the window. The antenna is fixed by double-sided adhesive tape on an outer face of a section of the door frame that extends in the up-down direction. The bracket is attached to the side door, and faces a cable extending downward from the antenna. The bracket has a cable opening through which the cable passes, between the bracket and the door frame. The cable opening has a shape through which the antenna cannot pass.