Envejecimiento y Fiabilidad

Coil aging accumulates from thermal cycling of enamel and potting, moisture ingress, ferrite micro-cracking, and terminal corrosion. AGV fleets targeting 5–10 year life need reliability models tying operating temperature, duty cycle, and environmental class to failure rates.

Silent degradation — rising Rac or falling insulation resistance — precedes catastrophic failure. Trending coil Q or charge session efficiency in telemetry catches drift early.

01Aging drivers

• Temperature: inner turn hot spots accelerate enamel crack.
• Humidity: outdoor pads and wash-down zones.
• Mechanical: vibration and docking impact cumulative.
• Chemical: oil mist, battery electrolyte mist in battery-change areas.

02Reliability practices

Accelerated thermal aging on samples before release. Weibull or similar life data from pilot fleets. Define end-of-life as Rac or L out of band, not only open circuit.

03Spares and rework

• Stock coil assemblies, not only full pads, if modular.
• Field replacement recalibration procedure for FOD and power limits.
• Avoid mixing old and new ferrite lot on same pad without retest.