How to Judge the Quality of the Motor?
Sep 03, 2021
How to judge the quality of the motor?
Motors play an important role in our daily life and social production. A good motor can solve many troubles for us. The motor is a product with relatively mature technology. We must be optimistic about the quality of the motor when selecting the motor, and ensuring the quality of the motor is the top priority.
From the point of view of the motor winding
Windings are part of what is prone to damage to motors. After long-term operation, the insulation system, including the enamelled copper wire of the winding, begins to be damaged and a short circuit occurs. A good quality motor can be rewound without seriously reducing the efficiency of the motor. Colaiway motor windings are F-class insulation 155°C. The lower the operating temperature of the motor, the longer the life of the insulation system. Typically when the motor is running at full load, the temperature can drop to 60-80°C, while low quality motors can exceed 90°C. Theoretically, a 10-15°C lower operating temperature can double the winding life and refueling time.
Judging from the length of the motor core
The stator of the motor is made of die-cast silicon steel plate. The die-casting length and die-casting density have a great influence on the performance of the motor. The longer the die-casting length of the iron core, the better the adhesion performance. Some companies reduce the cost by shortening the length of the iron core and reducing the brand of the silicon steel plate, and the price of the motor is very low.
From the point of view of full
The copper wire slot full rate is the amount of copper wire used, the longer the core, the more copper wire is used, the higher the slot full rate, the more copper wire is used, the copper wire is sufficient, and the motor performance is improved. By reducing the stator slot without changing the core length, the copper wire usage is reduced and the cost is reduced.
From the perspective of motor bearings
The bearing is the carrier that bears the high-speed operation of the motor rotor, and the most prone to failure of the motor, which affects the quality of the bearing, the running noise and heat of the motor. Kelaiwei's bearings are purchased from well-known domestic bearing manufacturers. The reliability of the bearing is guaranteed. Improve product quality and reduce motor failure.
From the point of view of the motor silicon steel sheet
The stator of the motor is made of silicon steel sheets, which are low-loss thin steel sheets with insulation. The silicon steel sheets must have consistent performance and be as thin as possible to maximize the magnetic field strength. The quality of the silicon steel sheet affects the quality of the motor.
From the perspective of motor manufacturing process
Including parts machining accuracy, rotor die-casting technology, assembly technology, insulation coating, etc., affect the performance and quality stability of the motor. Kelaiwei Electromechanical has strict management on the production process of the motor, and the quality has been further guaranteed.
