Temperature rise is a very critical performance indicator for the motor. If the temperature rise performance is poor, the service life and operating reliability of the motor will inevitably be greatly reduced. Influencing the motor temperature rise, in addition to the selection of the motor’s design parameters, many factors in the manufacturing process will cause the motor temperature rise to fail to meet the requirements of safe operation of the motor.
To test the motor temperature rise, a motor thermal stability temperature rise test must be carried out. It is impossible to find a problem with the motor temperature rise in a simple factory test. A large number of actual thermal stability temperature rise tests of motors show that the fan selection is not suitable and the thermal conductivity element is not suitable for a great impact on temperature rise, but the temperature rise caused by the paint immersion factor is also often encountered. The usual remedy is to re-immerse. Once painted.
In order to improve production efficiency, most small and medium-sized motors do not have the machine base immersion paint. In addition to the immersion and drying quality of the winding itself, the tightness of the iron core and the base also directly affects the final temperature rise of the motor. From a theoretical analysis, the mating surfaces between the base and the iron core should be closely coordinated, but due to factors such as deformation of the base and not only iron core, an air gap between the two mating surfaces will appear, which is not conducive to the motor. Heat insulation layer for dissipation. The use of a mattress immersion paint not only fills the air gap between the mating surfaces, but also avoids the possible factors that damage the motor winding during the manufacturing process, so as to enhance the insulation performance of the winding while the motor temperature is The upgrade control has certain improvement effects.
Post time: Feb-06-2025