Coaxial Connector Terminal Locking for Stable Impedance
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Solution Overview
Problem
The inner conductor terminal in existing connectors can incline after being locked to the dielectric, leading to changes in impedance between the inner and outer conductor terminals.
Innovation Solution
The inner conductor terminal includes a tubular terminal body with projections at intervals in the front-rear direction, which are locked to the dielectric at multiple positions, preventing inclination and allowing for press-fitting with a rear projection acting as a pressing surface, simplifying the configuration and stabilizing the terminal's posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single projection is provided on the inner conductor terminal to lock it to the dielectric, then the locking function is achieved, but the inner conductor terminal may incline after being locked, causing impedance changes
Solution Approach 1:
The single projection is divided into multiple projections (first projection and second projection) arranged at intervals in the front-rear direction. This segmentation allows the terminal body to be locked at multiple positions, preventing inclination while maintaining the locking function. The multiple projections distribute the locking force along the length of the terminal, stabilizing its posture within the dielectric.
2Stability of the object's composition
If multiple projections are provided at intervals in the front-rear direction, then terminal inclination is suppressed, but the device complexity increases
Solution Approach 1:
The multiple projections serve dual functions: they provide locking at multiple positions to prevent inclination, and they act as pressing surfaces for press-fitting the terminal into the dielectric. The rear projection specifically serves as a pressing surface during assembly. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity.
3Ease of operation
If the inner conductor terminal is inclined, then assembly may be easier, but impedance between inner and outer conductor terminals changes
Solution Approach 1:
The multiple projections are pre-configured to engage with the dielectric at specific positions, creating preliminary resistance against inclination before assembly is complete. This preliminary anti-action prevents the terminal from inclining during and after assembly, thereby maintaining impedance consistency while still allowing for ease of assembly through the press-fitting function of the rear projection.
Data Source
AI summary
A connector 10 includes an inner conductor terminal 11, an outer conductor terminal 13 for covering an outer periphery of the inner conductor terminal 11, and a dielectric 12 arranged between the inner conductor terminal 11 and the outer conductor terminal 13. The inner conductor terminal 11 includes a tubular terminal body 20 extending in a front-rear direction and projections (e.g. front projections 21 and rear projections 22) provided on the terminal body and to be locked to the dielectric 12. A plurality of the projections are provided at an interval in the front-rear direction.