Reversing Direction & Overheating Solutions for Single Phase AC Motor

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SUMMARY

The discussion focuses on reversing the direction and addressing overheating issues of a shaded pole AC Gearmotor with specifications of 100 RPM and 7 in-lbs torque. To reverse the motor's direction, the only solution is to disassemble the motor and reposition the armature, as a DPDT switch is not applicable for this type of motor. For overheating, increasing forced air ventilation is essential, as adding heatsinks or fans is recommended to enhance cooling. The motor's RPM is fixed and cannot be altered.

PREREQUISITES
  • Understanding of shaded pole motors
  • Basic knowledge of motor assembly and disassembly
  • Familiarity with forced air ventilation techniques
  • Awareness of cooling solutions for electrical components
NEXT STEPS
  • Research methods for disassembling shaded pole motors
  • Explore forced air ventilation options for motor cooling
  • Investigate the use of heatsinks and fans for electrical components
  • Learn about the limitations of fixed RPM motors
USEFUL FOR

This discussion is beneficial for hobbyists, DIY enthusiasts, and individuals working with AC motors, particularly those seeking solutions for reversing motor direction and managing overheating issues.

abhipatel
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I have an AC Gearmotor W/Fan, Base Mnt, 100 rpm, 7 in-lbs Torque, 115 VAC - I need to achieve 2 purposes with it:

1. Need to able to reverse directions - can I do it with a DPDT?

2. It is overheating - how can I solve it -- heatsinks or fans? Any recommended ones -- I have never done that in my life...

Just for the purpose of the motor - it is attached to a shaft (stirrer) and needs to be rotated on a 1+ hr basis for mixture stirring...I believe this one only rotates at 1 specified RPM...how would I be able to change it if required?

btw am not an electrical guy so do not have much experience so I would prefer the easiest and cheapest way around :biggrin:...
 
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Your motor is probably a shaded pole motor. Does it look anything like this?

http://en.wikipedia.org/wiki/Shaded-pole_motor

If it does, the only way to keep it cool is to provide more forced air ventilation. The only way to reverse it is to disassemble it and turn the armature around so the axle is pointing in the opposite direction. The motor RPM cannot be changed.

Bob S
 

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