What is the difference between outdoor motors and regular motors

Outdoor motors have specific requirements in the design and manufacturing process; The pricing of motors is slightly higher than that of ordinary motors (based on motor cost)

Hengli Motor's protection for outdoor motors mainly focuses on structural protection to prevent the invasion of small animals, rain, snow, and sandstorms. The quality of the sealing degree of the shell depends on the treatment of the shaft extension and outlet. The outdoor motor bearing part should be equipped with a splash ring, and the joint surface between the junction box and the machine base should be wide and flat, with a sealing gasket in between. The incoming line should have a sealing sleeve, and the end cap stopper and lifting ring hole should have rubber gaskets. The fastening screws should use countersunk screws with encrypted sealing gaskets. Outdoor motor ventilation should adopt a structure that prevents wind, snow, or foreign objects from entering. You can use ventilation ducts or install baffles in the air ducts to separate rain, snow, and sand particles. Dust filters can be installed in dusty areas.

Insulation measures for outdoor motors

In addition to selecting appropriate insulation materials, Hengli motors adopt the correct insulation treatment process to form a complete protective layer on the insulation surface. To protect against sunlight, a sun visor can be installed on the top of the shell, and there should be a certain distance between the sun visor and the shell to avoid direct heat transfer. In recent years, cooling boxes are often placed on top of the stator. To avoid condensation in the motor, a moisture-proof heater can be installed.

Outdoor motors can be treated similarly to tropical motor insulation. In recent years, the development of new insulation materials and insulation processes has enabled reliable sealing of motor winding parts without the need to seal the entire motor. Many countries use protective type instead of fully enclosed type. Protective outdoor motors can use sealed windings. The winding is made of non hygroscopic insulation material and electromagnetic wire. After the stator winding is loose, it can be soaked with drops or coated with integral paint. The winding and joints are all sealed, and the constant force motor can prevent pollution and adapt to outdoor environmental conditions.

Outdoor motors should be coated with surface paint that is resistant to light aging, with white being the best and silver white being the second best. Plastic used outdoors should pay special attention to its light aging performance. At low temperatures, plastics and lubricants are prone to brittleness or solidification, and materials with good cold resistance should be selected.