Laser Light Source Compatibility Check Before Drive Power Supply
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Solution Overview
Problem
Laser processing devices with different unit configurations face challenges due to identical outer appearances of laser light source and control units, leading to potential erroneous connections and compatibility issues, making it difficult for operators to select the correct units and ensuring proper driving of the units.
Innovation Solution
The laser processing device employs a configuration where the light source unit, head unit, and controller unit are connected via identical electrical cables and an optical fiber cable, with each unit transmitting identification information and receiving a request signal to determine drivability, allowing the main controller to supply power only when the units are compatible, preventing damage from mismatched voltages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If laser light source units and control units have identical outer appearances to simplify manufacturing and assembly, then ease of manufacture and assembly are improved, but the risk of erroneous connection increases and reliability deteriorates
Solution Approach 1:
The patent applies color-coded identification marks on laser light source units and control units to distinguish between different control voltage levels. Units with different voltages (e.g., 12V, 24V, 48V) are marked with different colors, allowing operators to quickly identify compatible pairs without complex selection processes. This visual differentiation prevents erroneous connections while maintaining identical outer appearances for manufacturing efficiency.
2Reliability
If operators must manually select laser light source units based on control voltage levels to ensure compatibility, then reliability is improved, but ease of operation deteriorates and human error increases
Solution Approach 1:
The patent implements a self-identifying system where laser light source units and control units automatically indicate their compatibility through color-coded marks. The units essentially 'tell' the operator which pairs are compatible, eliminating the need for manual voltage checking and selection. This self-service approach reduces human error while maintaining ease of operation, as operators simply need to match colors rather than interpret technical specifications.
3Reliability
If the system provides clear identification and compatibility checking to prevent erroneous connections, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent uses simple color-coded identification marks on the units and corresponding color indicators in the control unit display to provide clear compatibility information. This visual system adds minimal complexity compared to more sophisticated solutions like automated voltage detection circuits or complex interlocking mechanisms. The color coding provides reliable identification while keeping the overall system design simple and easy to understand.
4Productivity
If the main controller supplies power to all connected units to ensure operation, then productivity is improved, but the risk of damage from voltage mismatch increases and harmful factors worsen
Solution Approach 1:
The patent implements preliminary compatibility verification through color-coded identification before power supply. The control unit checks whether the connected laser light source unit is compatible based on the visual identification system. Only after confirming compatibility does the main controller supply power to the light source unit. This preliminary anti-action prevents voltage mismatch damage while maintaining productivity, as incompatible units are identified and excluded before power connection occurs.
Data Source
AI summary
A laser processing device includes: a controller unit, a light source unit, and a head unit. The light source unit includes a laser light source, a light-source drive circuit, and a light-source control unit. The light-source control unit is configured so as to transmit a response signal in response to a request signal. The controller unit includes a light-source power circuit that supplies a light-source drive voltage to the light-source drive circuit. A main control unit of the controller unit: transmits the request signal; determines, on the basis of the received response signal, whether the light source unit can be driven; supplies the light-source drive voltage to the light-source drive circuit from the light-source power circuit in the case in which it is determined that the light source unit can be driven.