HF Cable Connecting Device with Grooved Sleeve for Angular Adjustment
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Solution Overview
Problem
Existing connection methods between radio frequency (HF) cables and interfaces, such as waveguide flanges or connectors, face issues with torsional moments that can lead to loosening, damage, or shear, making it difficult to achieve a stable and adjustable angular position without compromising electrical and mechanical integrity.
Innovation Solution
A connection device featuring a sleeve with axial grooves and a cylindrical pin that allows for adjustable angular positioning between the HF cable and interface, ensuring a torsionally rigid and detachable connection, with additional grooves on the interface for fine adjustment and a cap nut for axial fixation, allowing for easy reconfiguration without impairing HF properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the HF cable is rigidly connected to the HF interface using traditional methods (soldering, gluing, or clamping), then the connection is mechanically strong and electrically stable, but the connection cannot be adjusted for angular position and is susceptible to torsional damage
Solution Approach 1:
The connection device is divided into three main segments: the HF cable, the adjustable sleeve, and the HF interface. The sleeve acts as an independent intermediate component that can rotate and be positioned at different angles relative to both the cable and the interface, allowing angular adjustment while maintaining stable connections at both ends.
Solution Approach 2:
The sleeve serves as an intermediary component between the HF cable and the HF interface. It absorbs and accommodates angular misalignments and torsional moments through its rotational degrees of freedom, protecting the actual electrical connection points from mechanical stress while enabling angular adjustment.
2Strength
If the HF cable is rigidly connected to the HF interface, then the connection is torsionally rigid, but torsional moments can loosen, damage, or shear the connection
Solution Approach 1:
The sleeve's rotational capability, which initially appears to reduce torsional rigidity, actually converts harmful torsional moments into beneficial rotational adjustment. The sleeve can rotate to align the cable and interface optimally, eliminating torsional stress from the electrical connection while maintaining sufficient mechanical strength through proper mounting.
3Stability of the object's composition
If traditional rigid connection methods are used, then the connection is mechanically stable, but the connection cannot be easily detached or repositioned
Solution Approach 1:
The connection device transitions from a static rigid connection to a dynamic adjustable connection. The sleeve can be rotated to different angular positions and locked in place, allowing the connection to be detached, repositioned, and reconnected while maintaining mechanical stability at each positioned state.
4Adaptability or versatility
If the sleeve allows rotational adjustment, then angular position can be optimized, but the connection may develop play or looseness
Solution Approach 1:
The sleeve is pre-equipped with circumferential grooves that guide the cylindrical pin during assembly. This preliminary structural arrangement ensures that when the pin is inserted, it automatically engages with the grooves to define the angular position precisely, preventing any play or looseness while maintaining the ability to adjust to different angular positions.
Data Source
Figure 1
Figure 2~4
AI summary
The invention relates to a connecting device for connecting a high-frequency (HF) cable (12), in particular a coaxial cable, to an HF interface (10), in particular a coaxial plug-in connector or hollow conductor, wherein the connecting device comprises a sleeve (14), which is formed at a first axial end for plugging with a connection part (22) of the HF interface (10) and at a second end axially opposite the first end for connecting to the HF cable (12), wherein a surface of the sleeve (14), which faces the connection part (22) of the HF interface (10) in the plugged state of the sleeve (14) and the connection part (22) of the HF interface (10), is provided with at least one first groove (30) in the axial direction, wherein at least one cylindrical pin (20) is provided for engaging in at least one first groove (30).