Electrical Connector Adhesive Contact Positioning

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Solution Overview

Problem

Existing electrical connectors deform the insulating housing due to the interference of barb portions on the contacts, which causes distortion.

Innovation Solution

The use of adhesive on the inner surface of the insulating housing's passageways to securely position the contacts, eliminating the need for barb portions and preventing distortion by supporting the contacts with blocks and positioning portions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If barb portions are used to position contacts on the insulating housing, then the contacts can be mechanically secured, but the insulating housing becomes deformed

Engineering Contradiction:
Improvecontact positioning reliabilityVSAvoidinsulating housing shape
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The patent replaces the mechanical barb portion system with a chemical adhesive bonding system. Instead of using barb portions that mechanically interfere with and deform the insulating housing, the invention applies adhesive to bond the contacts to the housing, eliminating the harmful mechanical interference while maintaining secure positioning.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent removes the barb portions from the contact structure entirely. By extracting the harmful barb portion element, the invention eliminates the source of deformation to the insulating housing while retaining the essential function of contact positioning through adhesive bonding alone.

Inventive Principle:
Principle #2Taking out (Extraction)

2Shape

If adhesive is used to position contacts, then the insulating housing remains undistorted, but additional assembly steps are required

Engineering Contradiction:
Improveinsulating housing integrityVSAvoidassembly process complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent applies the adhesive to the insulating housing before assembling the contacts. This preliminary action allows the adhesive to be properly positioned and distributed on the housing surface, simplifying the subsequent contact assembly process and ensuring optimal bonding without requiring complex alignment steps during final assembly.

Inventive Principle:
Principle #10Preliminary action

3Shape

If barb portions are removed, then contact positioning reliability improves, but contact stability may be compromised

Engineering Contradiction:
Improveinsulating housing integrityVSAvoidcontact positioning reliability
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The patent substitutes the mechanical barb portion positioning system with an adhesive bonding system. The adhesive provides reliable contact positioning without the deformation issues caused by barb portions, achieving both housing integrity and contact reliability simultaneously.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 adhesive securely positions the contacts without distorting the insulating housing, ensuring reliable assembly and preventing the contacts from breaking away, thus maintaining the housing's integrity.

Implementation Method 1

the electrical connector further has adhesive pasted on the inner surface of the passageway, after the electrical contacts are assembled to the insulating housing, the electrical contacts touch with the adhesive and be positioned on the insulating housing by the adhesive

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Data Source

PatentUS9401557B2Electrical connector and the assembling method thereof
Publication Date: 2016.07.26 FOXCONN INTERCONNECT TECHNOLOGY LTD
  • US9401557B2 patent drawing
  • US9401557B2 patent drawing
  • US9401557B2 patent drawing

AI summary

An electrical connector (100) includes an insulating housing (1) and a plurality of electrical contacts (2) received therein, the insulating housing (1) includes a top surface (11), a bottom surface (10), a plurality of passageways (110) and a pair of blocks (12) extending toward each other from the inner surface of the passageway (110), each of the electrical contacts (2) includes a body portion (20) positioned in the insulating housing (1), the blocks (12) locate under the body portion (20) of the electrical contact (2), the electrical connector (100) further includes adhesive (3) pasted on the inner surface of the passageway (110), after the electrical contacts (2) are assembled to the insulating housing (1), the electrical contacts (2) touch with the adhesive (3) to position the electrical contacts (2) on the insulating housing (1).