Coaxial Cable Connector CID Assembly Mechanism

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Solution Overview

Problem

The production of coaxial cable connectors is inefficient due to multiple assembly steps and parts, making automation challenging and increasing costs.

Innovation Solution

A contact subassembly for electrical cable connectors is designed with a center contact, dielectric holder, and outer contact, featuring cable insulation displacement (CID) features that allow for a one-step press termination, reducing the number of assembly steps and parts by engaging the core conductor and shield layer of the cable simultaneously.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple pressing operations with different applicators are used to assemble the connector, then reliable electrical connections are achieved, but the assembly process complexity increases and production efficiency decreases

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidassembly process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple pressing operations into a single integrated tool that performs both the first pressing operation (attaching center contact to core conductor) and the second pressing operation (attaching outer contact to shield layer) simultaneously. This merging of operations reduces assembly complexity while maintaining connection reliability through dedicated pressing features for each contact type.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The pressing tool is designed with universal functionality to perform multiple pressing operations on different components (center contact and outer contact) using a single tool. The tool includes different pressing features (first pressing feature for center contact, second pressing feature for outer contact) that can accommodate various pressing requirements within one device, reducing the need for multiple specialized applicators.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple pressing operations with different applicators are used to assemble the connector, then reliable electrical connections are achieved, but production costs increase

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines multiple pressing operations into a single integrated tool that performs both the first pressing operation (attaching center contact to core conductor) and the second pressing operation (attaching outer contact to shield layer) simultaneously. This merging of operations reduces assembly complexity while maintaining connection reliability through dedicated pressing features for each contact type.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The pressing tool is designed with universal functionality to perform multiple pressing operations on different components (center contact and outer contact) using a single tool. The tool includes different pressing features (first pressing feature for center contact, second pressing feature for outer contact) that can accommodate various pressing requirements within one device, reducing the need for multiple specialized applicators.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If multiple pressing operations with different applicators are used to assemble the connector, then reliable electrical connections are achieved, but automation suitability decreases

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidassembly automation suitability
Core Design Contradiction:
ReliabilityVSExtent of automation

Solution Approach 1:

The patent combines multiple pressing operations into a single integrated tool that performs both the first pressing operation (attaching center contact to core conductor) and the second pressing operation (attaching outer contact to shield layer) simultaneously. This merging of operations reduces assembly complexity while maintaining connection reliability through dedicated pressing features for each contact type.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The pressing tool is designed with universal functionality to perform multiple pressing operations on different components (center contact and outer contact) using a single tool. The tool includes different pressing features (first pressing feature for center contact, second pressing feature for outer contact) that can accommodate various pressing requirements within one device, reducing the need for multiple specialized applicators.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

This solution enhances production efficiency by reducing time and costs, simplifying the assembly process, and improving automation suitability, while maintaining reliable electrical connections.

Implementation Method 1

The termination region includes a first cable insulation displacement (CID) feature defining a core slot sized to receive and engage a core conductor of a cable therein

Methodology Applied
Scientific EffectCable insulation displacement (CID): Mechanical Force

Data Source

PatentUS9929519B1Electrical cable connector and method of assembling the same
Publication Date: 2018.03.27 TE CONNECTIVITY SOLUTIONS GMBH
  • US9929519B1 patent drawing
  • US9929519B1 patent drawing
  • US9929519B1 patent drawing

AI summary

An electrical cable connector includes a contact subassembly having a center contact, a dielectric holder, and an outer contact. The dielectric holder defines a channel that is open at a top side of the dielectric holder. The center contact has a termination region that is held in the channel. The termination region includes a first cable insulation displacement (CID) feature. The outer contact includes a second CID feature extending from a base wall of the outer contact outside of the dielectric holder. The second CID feature extends into the channel through an aperture in the dielectric holder. The first CID feature engages a core conductor of a cable and the second CID feature engages a shield layer of the cable as the cable is loaded into the channel from above the top side of the dielectric holder.