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How is heat dissipation handled for naked motors?
Release date:
2025-10-14
Forced air-cooling散热
1. In practical applications, multiple cooling methods are often combined to enhance heat dissipation. For example, heat sinks and a fan can be used simultaneously on bare motors, or heat sinks can be integrated into liquid-cooling systems to further improve cooling efficiency.
Natural convection cooling works by leveraging the temperature difference between the motor’s surface and the surrounding air to dissipate heat. In a bare motor, components like the stator and rotor are directly exposed to the air, allowing heat to escape through natural air circulation. While this method is simple and requires no additional equipment, it offers relatively low cooling efficiency and is best suited for motors with lower power ratings or in environments where ambient temperatures remain cool.
2. Forced air-cooling散热
Forced air cooling accelerates airflow using fans or other air-moving devices, significantly enhancing heat dissipation efficiency. In the case of bare motors, a fan can be directly mounted onto the motor shaft, or ventilation channels can be strategically placed around the motor to guide hot air away via a fan. While this method offers excellent cooling performance, it requires additional fan equipment, thereby increasing both the complexity and cost of the motor design.
3. Liquid-cooled cooling
Liquid cooling dissipates heat generated by the motor by using a liquid—such as water or oil—as the cooling medium. In bare-motor designs, coolant channels can be integrated directly into or around the motor housing, allowing the circulating coolant to efficiently carry away heat. Liquid cooling is highly efficient and ideal for high-power, high-heat applications, though it requires addressing the complexities of sealing and managing the coolant circulation system.
4. Heat sink cooling
Heat sinks are an effective method for enhancing heat dissipation efficiency by increasing the surface area available for cooling. In bare motors, heat sinks can be attached to the stator, rotor, or other motor components, where they efficiently transfer heat into the air via conduction and convection. While this approach is straightforward and reliable, the shape and layout of the heat sinks must be carefully optimized based on the specific design of the motor.
5. Combined cooling method
In practical applications, multiple cooling methods are often combined to enhance heat dissipation. For instance,散热片 and a fan can be used simultaneously on bare motors, or散热片 can be integrated into liquid-cooling systems to further improve cooling efficiency.
What should I do if the 80 reducer motor makes loud noise during operation?
Summary: Check the bearings: Wear or damage to the bearings can cause noise during motor operation. Inspect the bearings for any signs of abnormal wear or looseness, and replace them if necessary.
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How is the insulation performance of the elevator door operator motor ensured?
Summary: Regularly perform insulation resistance tests on elevator door operator motors to ensure their insulation performance meets standard requirements.
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Summary: Confirm whether the power voltage is normal and check for any voltage drops or abnormal power frequency.
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