In modern technology, motors are widely used in various home appliances, industrial equipment, and automobiles as core drive components. There are many types of motors, the two most common of which are brushed motors and brushless motors. Whether in home appliances, automobiles or high-tech products such as robots, these two motors play an important role. They have their own characteristics and are applicable to different scenarios. Consumers often fall into the question of “which is better, brushless motor or brushed motor” when choosing. X-TEAM will deeply analyze the difference between these two motors and help you make a more appropriate choice.
- Introduction to brushed motors
The brushed motor is the earliest widely used type of motor. It consists of a stator, a rotor, a brush (carbon brush) and a commutator. The brush is responsible for contacting the commutator to switch the current, thereby rotating the rotor. The brushed motor has a relatively simple structure, low manufacturing cost, and mature technology, so it is still widely used in some low-cost, low-power applications.
- Introduction to brushless motors
As the name implies, brushless motors do not have carbon brushes. Its rotor is usually made of permanent magnet material, while the stator generates a magnetic field through the change of current to drive the rotor to rotate. Brushless motors use electronic commutators to replace the mechanical brushes of traditional brushed motors, which greatly reduces the internal friction of the motor and makes it more efficient and durable.
- The main differences between brushed motors and brushless motors
1) Structural differences
Brushed motors change the direction of current and realize rotor rotation by contacting carbon brushes with commutators, while brushless motors realize current commutation through electronic control systems (usually electronic speed regulators). Brushless motors eliminate carbon brushes and commutators, thereby avoiding mechanical friction and reducing wear.
2) Maintenance requirements
Brushed motors need to replace brushes regularly due to the wear of carbon brushes, and the wear of brushes may also cause the motor efficiency to decrease. Brushless motors do not have carbon brushes, so they do not require maintenance and replacement of parts, and have a relatively long service life.
3) Efficiency and performance
Brushless motors are generally more efficient than brushed motors. Since there is no friction between the carbon brush and the commutator, the process of converting electrical energy into mechanical energy is more efficient, and the energy loss during operation is smaller. In addition, the speed control of the brushless motor is more precise, and it can maintain a stable output power under different loads.
4) Noise and vibration
The brushed motor generates friction due to the contact between the carbon brush and the commutator, so it will produce greater noise and vibration during operation. However, the brushless motor does not have these mechanical frictions, so the noise and vibration are relatively small, and the operation is smoother.
5) Life and durability
The brushless motor has a much higher working life than the brushed motor due to the reduction of friction parts. Generally speaking, the service life of the brushless motor is 2 to 3 times that of the brushed motor, which makes the brushless motor particularly suitable for applications that run continuously for a long time, such as drones, power tools, etc.
6) Cost difference
The brushed motor has a simple structure and low cost, so it is suitable for applications with limited budgets or low requirements. However, the brushless motor has a higher cost due to the need for a more complex electronic control system, and is mainly used in high-end equipment with high requirements for efficiency, performance and life.
- Which motor is more suitable?
1) Brushed motor: Applicable scenarios
Brushed motors are suitable for some low-power, low-cost devices, such as household appliances (fans, vacuum cleaners, etc.), toys, portable tools, etc. They have low manufacturing costs and are suitable for applications that do not require high efficiency and high durability.
2) Brushless motor: Applicable scenarios
Brushless motors are more suitable for high-performance and high-efficiency applications, especially those that require long-term continuous operation. For example, electric vehicles, power tools, robots, drones and other fields. Due to their long life, low noise and high efficiency, brushless motors have been widely used in high-end consumer products and industrial fields.
Brushless motors and brushed motors have their own advantages and disadvantages, and there is no absolute “good” or “bad”. When choosing, you should decide according to the specific application requirements. If you need a motor device with high cost performance and simple maintenance, a brushed motor is undoubtedly a good choice; and if you have higher requirements for the efficiency, durability and quietness of the motor, then a brushless motor will be a better choice. Understanding the difference between the two motors and choosing the most suitable product can maximize the use needs.
If you want to know more about “brushless motor”, please contact online customer service. X-TEAM brushless motor provides OEM and ODM services for a long time to meet the different needs of different customers.