Elevator Clutch Air-Core Coil - Project Details

The elevator clutch air-core coil is a critical electromagnetic component utilized within elevator drive systems; its primary function is to facilitate the transmission or disengagement of power through electromagnetic action.

Video

Features

❖ Coreless winding structure (utilizing high-purity copper or aluminum conductors)

❖ Epoxy resin composite bobbin

❖ Multi-layer insulation treatment (typical interlayer withstand voltage ≥ 3kV)

❖ Integrated cooling channel design

Parameters

❖ Response Time: < 10ms (compared to approx. 20–30ms for traditional iron-core types)

❖ Operating Frequency: 50Hz – 5kHz

❖ Rated Current Density: 6 – 15A/mm²

Applications

❖ Smart Clutch Coils: Integrated temperature/vibration sensors, support for IoT remote monitoring, and self-diagnostic capabilities (providing fault warnings up to 30 days in advance)

❖ Superconducting Material Applications: High-temperature superconducting tapes (critical temperature > 77K), current density boosted to 300A/mm², and 60% reduction in energy consumption (currently in the experimental phase)

Winding Process Considerations

❖ Precision Winding Technology:

Utilizes CNC winding machines (positioning accuracy: ±0.01mm)

Tension control range: 3–8N (automatically adjusted based on wire diameter)

Interlayer insulation treatment (Polyimide film thickness: 50 ± 5μm)

❖ Special Process Requirements:

Vacuum Pressure Impregnation (VPI) Process:

Vacuum level: < 5Pa

Impregnation pressure: 0.6 – 0.8MPa

Curing temperature: 150 ± 5°C

❖ Quality Inspection Standards:

100% Inter-turn testing (2500V/1ms pulse)

Partial discharge level: < 5pC (measured at 1.5 times the rated voltage)

3D Magnetic Field Scanning (uniformity deviation: < 3%)