Why pure copper wire motor is better than aluminum wire motor?

Pure copper wire motor and aluminum wire motor are two common types of motors on the market at present, and there are some differences in material and structure.
First of all, the pure copper wire motor uses copper as the cable material, and the aluminum wire motor uses aluminum wire as the conductor. In contrast, pure copper wire has better electrical conductivity and can provide a more stable and efficient current supply, thus ensuring the efficiency and reliability of the motor. Second, there is a big difference in the density of pure copper wire and aluminum wire, and pure copper wire has a higher density, which makes it more durable and strong in the manufacture of motors. At the same time, the pure copper wire also has better thermal conductivity and corrosion resistance, and can better adapt to the harsh working environment. In addition, compared with the aluminum motor, the loss of the pure copper motor under the current load will be smaller, and its heat output will be lower, thus avoiding the problem of reducing the life of the motor due to high temperature.

1.The electrical conductivity of copper is better than that of aluminum, the current carrying capacity of copper wire is 6 amps per square, and the aluminum wire is 5 amps, which has a high electrical conductivity and thermal conductivity, which is determined by the electron arrangement of copper atoms. The electron configuration of copper atoms is very special, and its outer shell electron is only one, and this electron is very easy to break away from the nucleus, forming a free electron. As a result, electrons are transferred very quickly in copper, resulting in good electrical conductivity. In contrast, aluminum has more electrons in its outer layer, and its electron arrangement is relatively loose, resulting in a slower transmission speed of electrons. As a result, aluminum's electrical conductivity is relatively weak. The overall performance is not as stable as the copper wire motor, and a penny is a penny. The power of the aluminum motor is much smaller than that of the copper core, and the carrying capacity is small, so it is easy to heat. Generally, aluminum wire is about 20 percent less powerful than copper wire.

2.Pure copper coil motor is of course more durable. Under the conditions of high load and long working time, the wire of the copper wire motor will not generate overheating, which can better protect the motor, but also extend the service life of the motor. Second, copper has a higher heat capacity, which means it can absorb and release more heat without causing damage. During operation, the motor generates a lot of heat, and if the heat capacity of the motor is insufficient, it will be damaged by overheating. In contrast, the high thermal capacity of copper can better protect the motor, thus extending its service life.

3.Pure copper motor noise is less. Copper is denser and harder than aluminum, which makes the copper wire produce less vibration and noise when the motor is running. In addition, copper is also better conductive, which can reduce the leakage of electrons and electromagnetic field interference when the current flows, thus further reducing noise generation.

4.For example, the resistivity of the copper wire of the vibration motor is 0.017, and the resistivity of the aluminum wire of the vibration motor is 0.028. Copper wire copper aluminum wire exchange section ratio of 0.79:1, six square copper wire is about equivalent to ten square aluminum wire, aluminum wire diameter will be thicker than copper wire, the same stator wire slot aluminum wire often can not be put down, the unit area of the current is not the same, copper wire is about per square millimeter can pass 5-8 amperage, aluminum wire is much less.

5.The quality of the aluminum wire will be lighter, relatively cheaper, but the mechanical strength is poor, the aluminum wire and the connecting line end of the place easy to oxidize, the connecting line end oxidation will cause the temperature rise, cause poor contact, is the cause of failure to power off or break the line of the multiple points, in addition, the aluminum wire is not easy to weld, the strength is small and the melting point is low, it is easy to oxidize, resulting in high temperature rise and loss.

6.The strength and toughness of pure motor winding copper is better than that of pure aluminum core motor. Copper is a metal with very high ductility and plasticity. This means that the pure copper core motor can withstand greater forces during use, without cracking, breaking and other accidents. In contrast, the ductility and plasticity of pure aluminum core motors are relatively poor, and they are prone to deformation or fracture when subjected to the pressure of large forces. Secondly, copper's chemical properties are also more stable and durable than aluminum. Copper is not easy to oxidize and corrode, while aluminum is easy to oxidize, resulting in the destruction of the surface film, which affects the service life of the motor. In addition, the electrical conductivity of pure copper core motors is higher, and they can transmit electrical energy more stably, making the motor run more smoothly.

The use of pure copper motor has many advantages, first of all, its electrical conductivity is very good, can be more efficient transfer of electrical energy, so that the operation of the motor is more stable and reliable. At the same time, the heat conduction performance of pure copper core motor is also very high, which can better heat dissipation in high temperature environment and extend the service life of the motor. In addition, the pure aluminum core motor needs to use more additives and chemicals in the manufacturing process, which causes certain pollution to the environment. The manufacturing process of pure copper core motors is relatively simple, and the materials used are more environmentally friendly.

So, in practical applications, how to choose the right motor? First of all, we need to choose the motor according to the specific use needs. If it is used for long-term, high frequency use, such as industrial production and other fields, it is recommended to choose pure copper core motor. Because the pure copper core motor has strong conductivity, less heat during operation and relatively long life, it can meet the needs of high load, long time and high frequency of use to ensure safe and reliable operation. If it is only occasionally used or the load is small, such as household appliances, office equipment and other fields, you can choose pure aluminum core motor to meet the economic and practical requirements.

The above are some professional knowledges on pure copper wire motor is better than aluminum wire motor by VSD Motors. For more relevant information, please contact us.