vacuum pump of aluminum wire motor and copper wire motor difference between of comparison

The current vacuum pump motor is on the market. Due to cost control and other conditions, some businesses use aluminum wire motor instead of traditional copper wire motor to drive the operation of the vacuum pump.

1、 Advantages of aluminum wire motor over copper wire motor: compared with copper wire motor, aluminum wire motor for vacuum pump will be lighter in quality and cheaper in price, which will be favored by some consumers.

2、 Disadvantages of aluminum wire motor compared with copper wire motor:

1. Analysis from the aspects of energy conservation and life: because the resistance of pure aluminum wire motor is larger than that of pure copper wire motor, the current carrying capacity of aluminum wire is only 60% of that of copper wire with the same cross section, that is, the resistivity of aluminum wire is much higher than that of copper wire. Moreover, the motor is easy to burn out due to temperature rise, resulting in short motor life. Generally, the overall life of aluminum wire motor is only 1/3 or 1/2 of that of copper wire motor. In the application of vacuum pump motor, copper wire motor is more energy-saving and durable than aluminum wire motor.

2. Analysis of motor coil quality: aluminum wire is very easy to deform during motor shaping and winding, and there are difficulties in crimping process.
There are many wires from the aluminum wire motor. Once it is lower than 0.21, the wire breaking rate is also very high and easy to break;, The wire break rate is very high. Aluminum wire motor has unstable performance and short service life.

3. Analysis of motor running noise: the noise energy will be doubled for every 3 dB increase in noise. For motors with the same power, the noise of aluminum wire motor is about 7 decibels higher than that of copper wire motor during operation, and the noise of aluminum wire motor is more than twice that of copper wire motor.