25 Swg Enameled Magnet Wire Aluminium Wire for Ceiling Fan Motor Winding

• Customization: Available
• Insulation Level: C, R, N, H, F, B, E, A, Y
• Certification: ISO9001, RoHS, VDE
• Model NO.: QZY
• Application: Transformer, Instrument, Electrical Equipment, Motor
• Shape: Round Wire
• Conductor Material: Aluminium Wire
• Transport Package: Pallet
• Specification: 0.01-6.00
• Trademark: windoo
• Origin: China
• HS Code: 85441900
• Production Capacity: 2500t/Year

Product Description

Using aluminium winding wire in fan motors involves several considerations and adjustments due to its different properties compared to copper. Here's a structured overview:

1. Electrical Adjustments
Conductivity Compensation: Aluminium has 61% of copper's conductivity. To achieve equivalent resistance, increase the wire cross-sectional area by ~1.64 times. For example, replace a 24 AWG copper wire with a 20 AWG aluminium wire.
Gauge Selection: Use thicker gauges to maintain current capacity, ensuring it fits within stator slots. This may require redesigning slot dimensions.

2. Mechanical Handling
Ductility and Strength: Aluminium is softer and more brittle. Adjust winding machinery to reduce tension and prevent breakage. Consider slower winding speeds or manual processes.

 

3. Termination and Connections
Oxidation Prevention: Aluminium forms a resistive oxide layer. Use ultrasonic welding, antioxidant compounds, or specialized connectors (e.g., tin-plated lugs) for reliable terminations.
Avoid Soldering: Opt for mechanical connections due to soldering difficulties with aluminium.
4. Thermal Management
Heat Dissipation: Higher I²R losses necessitate improved cooling. Ensure proper varnish impregnation to secure windings and mitigate thermal expansion issues.
Thermal Expansion: Use high-quality insulation and varnish to prevent loosening from repeated heating/cooling cycles.

5. Design Considerations
Slot Redesign: Accommodate thicker wires by enlarging stator slots if retrofitting. Consider bulkier end turns affecting motor size and airflow.
Efficiency Trade-offs: Accept slightly lower efficiency (higher losses) for cost savings, suitable for moderate-duty applications like household fans.

6. Environmental and Lifespan
Corrosion Resistance: Apply conformal coatings or moisture-resistant insulation, especially in humid environments.
Durability Testing: Validate lifespan under operational conditions to ensure reliability despite material fatigue risks.

7. Cost and Application
Cost-Benefit Analysis: Leverage aluminium's lower cost and weight for mass production, particularly in cost-sensitive applications.
Common Uses: Found in small appliances or fans where high torque and efficiency are less critical.