Welding Power Supply Interface for Input Power Feedback

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Solution Overview

Problem

Welding operators, especially novices, face challenges in selecting appropriate voltage and wire feed settings due to insufficient information about input power characteristics, leading to subpar weld quality and potential damage to the welding power supply and power source.

Innovation Solution

The implementation of welding power supplies and user interfaces that monitor, analyze, and present input power characteristics, such as voltage, current, and power, through graphical interfaces, providing operators with real-time feedback and enabling informed decisions to maintain optimal welding conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If welding operators rely on their own knowledge and acumen to select voltage and wire feed settings, then the operation complexity is reduced, but the weld quality and reliability deteriorate when operators are novices or when input power characteristics are not fully understood

Engineering Contradiction:
Improveease of setting selectionVSAvoidweld quality consistency
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system continuously monitors input power characteristics (voltage, current, frequency) and provides real-time feedback to the operator through the user interface. This feedback loop enables operators to see the actual power characteristics and adjust settings accordingly, ensuring reliable weld quality without requiring extensive expertise.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control circuitry acts as an intermediary between the power source and the welding process. It analyzes input power characteristics and automatically adjusts welding parameters or alerts the operator, bridging the gap between complex power characteristics and simple operator interaction.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the welding power supply operates without monitoring input power characteristics, then the device complexity is reduced, but harmful effects increase due to voltage drops, circuit breaker tripping, and potential damage to equipment

Engineering Contradiction:
Improvemonitoring system complexityVSAvoidvoltage drop and equipment damage
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary monitoring of input power characteristics before welding operations begin and during the process. By detecting potential issues like voltage drops or unstable power supply in advance, the system can alert operators or automatically adjust parameters to prevent harmful effects before they occur.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system provides a buffer against harmful effects by continuously monitoring power characteristics and preparing compensatory actions. When abnormal conditions are detected, the control circuitry can pre-adjust welding parameters or warn operators, cushioning against potential equipment damage before it occurs.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Loss of information

If real-time monitoring and presentation of input power characteristics is implemented, then information availability for operators is improved, but the device complexity and cost increase

Engineering Contradiction:
Improveinput power characteristics informationVSAvoiduser interface and control system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The system extracts only the most relevant input power characteristics (voltage, current, frequency) and presents them through the user interface, rather than displaying all possible parameters. This selective extraction provides necessary information to operators without overwhelming them with excessive data.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The control circuitry performs multiple functions: it monitors power characteristics, analyzes data, controls welding parameters, and provides user interface updates, all within a single integrated system. This multi-functionality reduces overall system complexity compared to having separate dedicated components for each function.

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

Data Source

PatentUS20250091153A1Input power user interfaces for welding power supplies
Publication Date: 2025.03.20 ILLINOIS TOOL WORKS INC
  • US20250091153A1 patent drawing
  • US20250091153A1 patent drawing
  • US20250091153A1 patent drawing

AI summary

Disclosed example power supplies, user interfaces, and methods provide for monitoring, analysis and/or presentation of input power characteristics for a welding-type power supply and/or wire feeder. A welding system includes a power supply to deliver power to a welding torch based on one or more input power characteristics. The input power characteristics may correspond to received input power characteristics values during a welding procedure. The input power characteristics are responsive to the power demanded during the welding operation and may change accordingly. To maintain an accounting of the input power characteristics and their values as they change during the welding operation, control circuitry may receive information regarding the input characteristics, analyze the information, and/or generate presentable indicators for display on one or more graphical interfaces.