Connector Metal Fixing Element Welded Circuit Board

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Solution Overview

Problem

Conventional connectors with plastic fixing poles are prone to deformation and displacement on circuit boards under external forces, leading to signal disruption and device malfunction during transportation or impact.

Innovation Solution

A connector design featuring a metal fixing element with a bending resilient plate and harpoon-shaped fixing parts that are welded onto the circuit board, providing stable fixation and preventing floating or leaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If plastic fixing poles are used to fix the connector on the circuit board, then the connector can be easily assembled, but the fixing poles deform and displace under external forces causing the connector to float and lean

Engineering Contradiction:
Improveassembly easeVSAvoidfixing stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent changes the material parameter of the fixing element from plastic to metal, which fundamentally alters the mechanical properties including elasticity, strength, and resistance to deformation. This material parameter change enables the fixing element to maintain structural integrity under external forces while still allowing for assembly operations.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs a hybrid fixing system that combines metal fixing elements with the existing plastic insulating housing structure. The metal fixing elements provide the necessary mechanical strength and stability, while the plastic housing maintains its insulating and structural functions, creating a composite fixing solution that addresses both assembly ease and fixing reliability.

Inventive Principle:
Principle #40Composite materials

2Device complexity

If plastic fixing poles are used, then the connector structure remains simple, but the signal terminals break when the circuit board is impacted during transportation or drop tests

Engineering Contradiction:
Improvestructure simplicityVSAvoidimpact resistance
Core Design Contradiction:
Device complexityVSStrength

Solution Approach 1:

The patent changes the material parameter of the fixing element from plastic to metal, which fundamentally alters the mechanical properties including elasticity, strength, and resistance to deformation. This material parameter change enables the fixing element to maintain structural integrity under external forces while still allowing for assembly operations.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The metal fixing elements are designed with specific geometric features including bent configurations and harpoon-shaped structures that provide mechanical interlocking with the circuit board. These curved and shaped features enhance the fixing strength and impact resistance while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Reliability

If metal fixing elements are used instead of plastic fixing poles, then the fixing stability and impact resistance are improved, but the manufacturing process becomes more complex

Engineering Contradiction:
Improvefixing stabilityVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent divides the connector assembly into distinct functional components: the insulating housing, the signal terminals, and the metal fixing elements. This segmentation allows each component to be manufactured and processed independently, with the metal fixing elements being separately attached to the housing, thereby managing manufacturing complexity through modular assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines the metal fixing elements with the plastic insulating housing to create a hybrid structure that leverages the advantages of both materials. The metal fixing elements are integrated into the housing structure, merging the structural support function with the fixing function, which simplifies the overall assembly process while maintaining high reliability.

Inventive Principle:
Principle #5Merging (Combining)

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

Ensures stable connection and normal operation of the connector even under impact, enhancing production yield and lifespan by preventing signal disruption and ensuring secure attachment.

Implementation Method 1

the first fixing part is suitable for being welded on a circuit board

Methodology Applied
Scientific EffectWelding: Welding

Data Source

PatentUS7775830B2Connector with metal fixing element and electronic device having the same
Publication Date: 2010.08.17 ASUSTEK COMPUTER INC
  • US7775830B2 patent drawing
  • US7775830B2 patent drawing
  • US7775830B2 patent drawing

AI summary

A connector including an insulating housing, a plurality of signal terminals, and at least a metal fixing element is provided. The signal terminals are disposed in the insulating housing, wherein a portion of each signal terminal is protruding out from the insulating housing. The metal fixing element has an inserting part and a fixing part connected to the inserting part. The inserting part is inserted in the insulating housing, and the fixing part is protruding out from the insulating housing at a same side with the signal terminals. The connector is suitable for welding on a circuit board through the fixing part.