Design of Cordless Electric Leaf Blower: Optimization of Motor Performance and Core Material Selection

In the modern gardening and cleaning tool market, cordless electric leaf blowers have been widely welcomed for their convenience and efficiency. This type of equipment not only greatly reduces the workload of manually cleaning up fallen leaves, debris and other debris, but also improves work efficiency, making gardening maintenance easier. However, in the design of cordless electric leaf blowers, the performance of the motor is undoubtedly a crucial core element. The quality of the motor directly affects the wind force, endurance and service life of the leaf blower.

As the power source of the cordless electric leaf blower, the working efficiency and energy consumption performance of the motor are the aspects that designers need to focus on. During the operation of high-speed motors, iron loss is one of the main losses, which has a significant impact on the overall performance of the motor. In short, iron loss is the energy loss generated by the motor core under the action of the alternating magnetic field. This loss not only reduces the efficiency of the motor, but also causes the motor to heat up, thereby affecting its service life.

The generation of iron loss is closely related to the power supply frequency and the core material. The higher the power supply frequency, the faster the magnetic field in the core changes, and the greater the iron loss. Therefore, in the design of cordless electric leaf blowers, the reasonable selection of power supply frequency is one of the important means to control iron loss. However, simply adjusting the power supply frequency is not enough to completely solve the iron loss problem, and the selection of core material is also crucial.

As the core part of the motor structure, the performance of the core material directly affects the iron loss level of the motor. Traditional core materials have limited magnetic conductivity and large losses under high-frequency magnetic fields, which can hardly meet the requirements of modern high-speed motors for high efficiency and low loss. Therefore, the use of high magnetic conductivity and low loss core materials has become a key way to improve motor performance.

Ultra-thin electrical steel sheets are an ideal high magnetic conductivity and low loss core material. This material has extremely high magnetic permeability and can generate greater magnetic flux under the same magnetic field strength, thereby improving the output efficiency of the motor. At the same time, ultra-thin electrical steel sheets also have good insulation properties, which can effectively reduce eddy current losses and further reduce iron loss. In addition, the processing performance of this material is also very superior, and it can be easily processed into various complex shapes to meet the diverse needs of motor design.

In the design of the motor of the cordless electric leaf blower, the use of ultra-thin electrical steel sheets as the core material can significantly reduce iron loss and improve the efficiency of the motor. This not only means that the leaf blower can generate more wind at the same power, but also means that the endurance of the equipment will be significantly improved. Because the reduction in iron loss means that the motor generates less heat during operation, which reduces energy waste and improves the utilization rate of electrical energy.

In addition to improving motor efficiency and endurance, the use of high magnetic permeability and low loss core materials can also help extend the service life of the cordless electric leaf blower. Because the reduction in iron loss reduces the heat generated by the motor and reduces the thermal stress of the internal components of the motor, thereby reducing failures and damage caused by overheating.