High-Voltage Tire Test Panel With Toroid Transformer Arc Detection
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Solution Overview
Problem
Existing tire inspection methods, particularly visual inspection and high-voltage electrical potential systems, are unreliable and inefficient in detecting tire defects, leading to potential hazards and increased maintenance costs.
Innovation Solution
A high-voltage panel for tire flaw detection systems, incorporating a solid toroid transformer, thyristor-based switch, and precise voltage and current monitoring, ensures reliable and consistent detection of tire defects by generating controlled high-voltage pulses and accurately measuring arc-overs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual inspection is used to detect tire defects, then the inspection process is simple and low-cost, but the detection reliability is poor and minute defects escape detection
Solution Approach 1:
The patent replaces the mechanical visual inspection method with an electrical field-based detection system. High-voltage electrodes generate an electrical field that interacts with tire defects, causing arcing or current changes that can be detected electronically, thereby overcoming the limitations of human visual inspection in detecting minute defects.
Solution Approach 2:
The patent changes the detection parameter from visual observation to electrical property measurement. By applying high voltage and measuring electrical current, voltage, or arc characteristics, the system can detect defects that are invisible to the human eye, improving detection reliability without requiring complex mechanical inspection equipment.
2Reliability
If high voltage electrical potential is applied to detect defects, then detection capability improves, but system reliability and consistency of defect detection deteriorate
Solution Approach 1:
The patent incorporates feedback mechanisms where the system continuously monitors electrical current, voltage, or arc characteristics during the high-voltage testing process. When anomalies are detected that may indicate false positives, the feedback system allows for real-time adjustment or rejection of erroneous detections, improving overall system reliability and reducing false positive rates.
Solution Approach 2:
The patent replaces unreliable mechanical or simple electrical detection with a multi-parameter electrical measurement system. By monitoring multiple electrical parameters simultaneously (current, voltage, arc duration, arc intensity) and comparing them against established thresholds, the system achieves more consistent and reliable defect detection while reducing false positives.
3Productivity
If visual inspection is performed manually, then the equipment required is minimal, but inspection speed and productivity are low
Solution Approach 1:
The patent replaces manual visual inspection with an automated electrical detection system that can rapidly scan entire tire surfaces. The high-voltage electrodes can be moved along the tire tread by a simple mechanical conveyor, enabling automated high-speed inspection without requiring complex robotic manipulation systems.
Solution Approach 2:
The patent employs periodic application of high voltage in a systematic manner across the tire surface. The inspection process involves sequential activation of detection zones, allowing the system to maintain high inspection speed while using relatively simple equipment by leveraging time-division multiplexing of the detection zones.
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 system provides enhanced reliability and repeatability in detecting tire flaws, including those in buffed tires, reducing false positives and enabling faster, more accurate tire inspection processes.
Implementation Method 1
The transformer is a solid toroid transformer configured to receive the high voltage from the high-voltage power supply and provide a high voltage to a detection head
Implementation Method 2
The switch includes a thyristor configured to facilitate discharge of the high voltage from the high-voltage power supply
Implementation Method 3
if objects such as nails are embedded in the tread portion of the tire or if defects such as orifices or fissures exist, the voltage applied across the electrodes may cause arcing at the point of foreign object or defect
Data Source
AI summary
A high-voltage panel in a tire defect detection system is provided. The panel includes a high-voltage power supply, a switch, and a transformer. The high-voltage power supply is configured to receive a low voltage from a low-voltage power supply and convert the low voltage to a high voltage. The switch is a thyristor-based device that is configured to facilitate the discharge of the high voltage from the high-voltage power supply. The transformer is a solid toroid transformer configured to receive the high voltage from the high-voltage power supply and provide the high voltage to a detection head of a defect detector system.