Electrical Connector Terminal Positioning and Stability

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Solution Overview

Problem

Existing audio jack electrical connectors suffer from instability due to terminals that are not effectively positioned, leading to swaying under forces, which affects the connector's stability and functionality.

Innovation Solution

The electrical connector features an insulative body with receiving holes containing terminals with horizontal and vertical portions, a fixing portion between adjacent holes for positioning, and a base that mates with the positioning structure to firmly secure the terminals, ensuring stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If terminals are extended through the base without positioning structures, then the terminals can be easily soldered to the circuit board, but the terminals cannot be effectively positioned and can easily sway under forces, affecting the stability of the electrical connector

Engineering Contradiction:
Improveease of solderingVSAvoidterminal stability
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The insulative body includes positioning structures (such as positioning holes or protrusions) that are pre-formed during the insulative body manufacturing process. These positioning structures are prepared in advance to receive and locate the terminals before soldering occurs, preventing terminal sway during assembly and soldering operations while maintaining manufacturing efficiency

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The positioning structures act as intermediary elements between the insulative body and the terminals. These structures provide a mechanical interface that secures the terminals in precise positions, enabling both easy attachment and stable positioning without requiring complex soldering procedures

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If terminals are securely fixed in position, then the stability of the electrical connector is improved, but the complexity of the insulative body structure increases due to additional positioning structures

Engineering Contradiction:
Improveconnector stabilityVSAvoidinsulative body structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The positioning structures serve multiple functions simultaneously: they locate the terminals during assembly, provide mechanical support to prevent terminal sway, and guide the insertion of terminals into the insulative body. This multi-functionality achieves stable terminal fixation without requiring separate dedicated components for each function, thereby avoiding excessive structural complexity

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

Solution Approach 2:

The positioning structures are integrated directly into the insulative body as a unified component rather than being separate parts. This merging of the positioning function into the main insulative body structure eliminates the need for additional separate positioning components, achieving stable terminal fixation while maintaining structural simplicity

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS7484996B2Electrical connector
Publication Date: 2009.02.03 LOTES
  • US7484996B2 patent drawing
  • US7484996B2 patent drawing
  • US7484996B2 patent drawing

AI summary

The present invention provides an electrical connector which includes an insulative body and a plurality of terminals. In addition, the insulative body has at least a receiving hole for the insertion of an electrical device, and each receiving hole has a plurality of terminals. Moreover, the plurality of terminals has a horizontal portion and a vertical portion perpendicular to one another; the horizontal portion has a contact portion, and the bottom of the vertical portion has a conductive portion. Furthermore, the insulative body has a fixing portion protruding from an end opposite to the receiving hole, and the fixing portion has a positioning structure for locating the vertical portion of the terminal, and the electrical connector has a base for mate with the positioning structure to fix the terminals in the positioning structure.