Coaxial Cable Connector Alignment and Compression Mechanism
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Solution Overview
Problem
Coaxial cable connectors often result in signal degradation due to leakage and interference, and can be difficult to mount securely on electrical devices, leading to poor grounding and disrupted connections.
Innovation Solution
A coaxial cable connector design featuring a cylindrical body with a compression collar and alignment mechanism, including a quasi-annular leaf spring, which applies axial force to maintain contact between the fitting and the body, ensuring secure engagement and preventing signal leakage while allowing for easy rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connectors are crimped onto coaxial cable to secure connection, then connection security is improved, but cable may be crushed resulting in signal degradation
Solution Approach 1:
The connector is divided into multiple functional components: a compression collar for securing the cable, an outer barrel with compression bands for gentle cable compression, and an inner post for electrical connection. This segmentation allows each component to perform its function without crushing the cable, resolving the contradiction between connection security and signal integrity.
Solution Approach 2:
Different parts of the connector have different mechanical properties tailored to their functions: the compression collar provides localized securing force, the compression bands provide distributed gentle compression, and the inner post provides rigid electrical connection. This local differentiation prevents overall cable crushing while maintaining secure connection.
2Reliability
If fittings are mounted tightly on connector body, then connection stability is improved, but threading onto electrical device becomes difficult
Solution Approach 1:
The fitting is mounted for rotation on the connector body rather than being rigidly fixed, allowing dynamic adjustment during threading operations. This rotational freedom reduces friction and makes installation easier while maintaining stable connection when engaged.
3Ease of operation
If fittings are mounted loosely on connector body, then threading becomes easy, but electrical connection can be disrupted when fitting moves
Solution Approach 1:
The alignment mechanism acts as a counterbalancing force that opposes the loosening tendency of the fitting. It applies continuous axial force to maintain contact between the fitting and inner post, preventing connection disruption while allowing easy installation.
Solution Approach 2:
The alignment mechanism automatically maintains proper fitting position through its spring-loaded design, eliminating the need for precise manual alignment during installation while ensuring continuous electrical contact. The system self-regulates to maintain connection stability.
4Reliability
If compression bands are made rigid for strong compression, then cable securing is improved, but cable may be damaged
Solution Approach 1:
The compression bands are designed with controlled flexibility parameters that allow them to deform elastically under compression. This enables them to apply sufficient securing force while remaining within elastic limits to prevent permanent cable damage, resolving the contradiction between securing strength and cable integrity.
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 design provides a secure, low-friction connection that maintains signal integrity by preventing leakage and interference, while allowing for easy mounting and rotation, ensuring reliable electrical communication.
Implementation Method 1
The alignment mechanism includes a quasi-annular leaf spring formed integrally to the body
Implementation Method 2
The inner and outer compression bands moved between uncompressed and compressed positions in response to axial compression of the connector. In the compressed condition, the outer compression band bears against the inner compression band to deform the inner compression band radially inward.
Data Source
AI summary
A coaxial cable connector for coupling a coaxial cable to an electrical device includes a body, a threaded fitting, and an alignment mechanism carried and compressed between the body and the fitting so as to exert an axial force against the fitting to maintain electrical contact between the fitting and the body. The body of the connector includes an outer barrel formed with an inner compression band, and a compression collar carried on the outer barrel and formed with an inner compression band. In response to compression of the connector by a compression tool, the inner and outer compression bands deform and move from an uncompressed condition to a compressed condition crimped onto the coaxial cable so as to securely apply the connector to the coaxial cable.