Coaxial Connector Wave Spring Grounding

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Solution Overview

Problem

Existing coaxial cable connectors often fail to maintain a secure ground connection and efficient signal transmission due to poor contact between the outer conductor and the coupler, especially when the coupler is loosely coupled or not fully tightened to the interface port.

Innovation Solution

A coaxial cable connector featuring a wave-shaped biasing portion that provides an electrical ground path between the nose portion and the coupler, improving conductivity regardless of the coupler's connection status to the interface port, utilizing a wave spring design to ensure a secure and conductive connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a threaded swivel cable connector is used to connect cable to interface port, then the cable can be connected without introducing a twist, but the electrically conductive connection between outer conductor and coupler is compromised due to poor contact

Engineering Contradiction:
Improvecable connection without twistVSAvoidelectrically conductive connection
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A wave-shaped biasing portion (intermediary element) is introduced between the coupler and nose portion to establish and maintain electrical contact. This biasing portion acts as a mediator that ensures continuous electrical connection regardless of the coupler's position, solving the reliability issue while preserving the threaded swivel connection's operational ease

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The biasing portion changes its physical state (compressed vs. uncompressed) based on coupler position, maintaining electrical conductivity across different connection states. The wave-shaped structure allows it to deform elastically, adapting its parameters to ensure contact in all coupling scenarios

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the coupler is loosely coupled or not fully tightened to the interface port, then the connector can be easily installed or removed, but the ground connection becomes poor and signal transmission is disrupted

Engineering Contradiction:
Improveeasy installation and removalVSAvoidground connection quality
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The biasing portion is self-activating based on coupler position. When the coupler moves from loose to tight coupling, the biasing portion automatically compresses and maintains electrical contact without requiring external intervention or additional components, ensuring reliable ground connection throughout the operation range

Inventive Principle:
Principle #25Self-service

3Reliability

If a rigid electrical connection is used between nose portion and coupler, then the ground connection is secure, but the connector cannot accommodate coupling variations and may introduce stress

Engineering Contradiction:
Improveground connection securityVSAvoidaccommodation of coupling variations
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The biasing portion transforms a rigid connection into a dynamic one. It can compress and expand elastically to accommodate different coupling states (loose, partial, full tightening) while maintaining electrical contact, providing both adaptability and secure ground connection

Inventive Principle:
Principle #15Dynamics

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 wave-shaped biasing portion enhances the electrically conductive connection between the coaxial cable's outer conductor and the coupler, maintaining signal integrity and preventing signal loss across various coupling states, while allowing connection without introducing a twist in the cable.

Implementation Method 1

a wave shaped biasing portion configured to provide an electrical ground path between a nose portion and a coupler

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

utilizing a wave spring design to ensure a secure and conductive connection

Methodology Applied
Scientific EffectSpring: Spring

Data Source

PatentUS20230246350A1Coaxial connector with grounding and retention
Publication Date: 2023.08.03 PPC BROADBAND INC
  • US20230246350A1 patent drawing
  • US20230246350A1 patent drawing
  • US20230246350A1 patent drawing

AI summary

A cable connector including: a body; a nose having a forward nose portion, a rearward nose portion that is configured to be coupled with the body, and a recessed nose portion; a coupler configured to be coupled with the forward nose portion; a conductor configured to be supported in the body and the nose portion; and a biasing portion configured to be received in the recessed nose portion. The coupler is configured to be rotatably coupled to the nose; and the biasing portion is configured to biasingly provide an electrical ground path between the nose and the coupler so as to improve an electrically conductive connection between an outer conductor of a coaxial cable and the coupler when the coupler is not connected to an interface port, when the coupler is loosely coupled to the interface port, and when the coupler is fully tightened to the interface port.