Angled Coaxial Cable Solder Joint for Flexible PCB Mounting
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Solution Overview
Problem
Conventional connection methods between coaxial cables and printed circuit boards require additional elements like connectors and are limited to connections near the edge of the board.
Innovation Solution
A solder connection between a coaxial cable and a printed circuit board arrangement that allows for direct, galvanic contact of the inner and outer conductors without the need for connectors, enabling connection at any part of the board, including the use of angled connections and metallized areas for reliable solder joints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connectors are used to connect coaxial cable to printed circuit board, then connection reliability is improved, but device complexity and cost increase
Solution Approach 1:
The invention extracts and eliminates the connector component from the connection system. Instead of using a separate connector element, the coaxial cable is directly soldered to the printed circuit board through through-holes, removing the intermediary connector and simplifying the overall device structure while maintaining reliable electrical connection
Solution Approach 2:
The invention merges the functions of the connector, cable interface, and board mounting into a single integrated solder connection structure. The coaxial cable passes through the PCB and is soldered directly to contact pads, combining multiple functions (cable support, electrical connection, mechanical fixation) into one unified solution
2Reliability
If connectors are used to connect coaxial cable to printed circuit board, then connection stability is improved, but manufacturing cost increases
Solution Approach 1:
The connector component is extracted and removed from the assembly, eliminating its manufacturing cost while the solder connection process itself is simplified to direct soldering of cable conductors to PCB pads through through-holes, reducing overall manufacturing complexity and cost
Solution Approach 2:
The invention replaces expensive reusable connectors with a simple, cost-effective solder joint solution. The through-hole solder connection provides stable, long-lasting electrical connection without requiring expensive connector components, making the manufacturing process more economical
3Ease of manufacture
If coaxial cable is connected only at the edge of printed circuit board, then manufacturing simplicity is maintained, but adaptability and space efficiency deteriorate
Solution Approach 1:
The through-hole solder connection method creates a universal mounting solution that can be applied at any location on the printed circuit board. The same basic structure (through-hole with solder contacts) works regardless of position, enabling flexible placement to optimize space utilization and adapt to different design requirements while maintaining manufacturing simplicity
Solution Approach 2:
The invention transitions from edge-only (1D constraint) to multi-location (2D/3D flexibility) cable connection. By using through-holes that can be positioned anywhere on the PCB surface, the connection freedom is extended from the board edge to the entire board area, enabling better space management and component layout
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
Enables flexible, cost-effective, and reliable connections of coaxial cables to printed circuit boards without bending, reducing material and time costs, and allowing for space-efficient wiring with low resistance.
Implementation Method 1
The outer conductor contact area is configured to contact the outer conductor galvanically. The inner conductor contact area is configured to contact the inner conductor galvanically.
Implementation Method 2
A first solder joint galvanically connects a part of the outer conductor to the outer conductor contact area, wherein a second solder joint galvanically connects at least a part of the inner conductor to the inner conductor contact area.
Data Source
Figure 1
Figure 2~3
Figure 4A~4D
AI summary
A solder connection (1) between a coaxial cable (2) and a printed circuit board arrangement (3). The coaxial cable (2) comprises an inner conductor (4), an outer conductor (6) and a dielectric (5) arranged in between. The printed circuit board arrangement (3) comprises an outer conductor contact area (8) and an inner conductor contact area (9). The outer conductor contact area (8) comprises an outer conductor receiving opening (12). The coaxial cable (2) runs at an angle to the printed circuit board arrangement (3), wherein a part of the outer conductor (6) is arranged in the outer conductor receiving opening (12) and wherein the inner conductor (4) is arranged at the inner conductor contact area (9). A first solder joint (10) connects the outer conductor (6) to the outer conductor contact area (8). A second solder joint (11) connects the inner conductor (4) to the inner conductor contact area (9).