Brushless motor customization is mainly for some of the product functions and use requirements are more stringent, or want to develop independent brushless motor with independent property rights of the company. At present, in the application of UAV products, many enterprises will choose customized brushless DC motor. Today, I will introduce to you the problems that need to be paid attention to customized bldc motor.
These issues need to be paid attention to when uav customized bldc motor:
First of all, we need to know that brushless motor customized development, in addition to the service life of the product base, power, noise and other issues, the most critical is efficiency and power.
Efficiency is the ratio of output power to input power of the UAV brushless motor scheme. The output power is the mechanical energy that the motor effectively converts into electric energy, and the input power is the electric energy that the power supply inputs. Thus, the efficiency of a motor essentially represents the conversion rate of electrical energy into machinery.
The efficiency of the motor depends on the loss of the motor during operation. The greater the loss, the lower the efficiency of the motor. The size of the loss is closely related to the electromagnetic load selected by the motor. When the motor needs to reduce losses, it needs to choose a lower electromagnetic load and current density. But this will inevitably increase the size and material consumption of the motor, thus increasing the volume and weight of the motor, and increasing the manufacturing cost of the motor. Therefore, to a certain extent, motor loss and motor volume and weight can not balance. In addition, loss is closely related to material properties, winding form and motor structure. In order to design high speed dc motors with good performance and economy, the designer must be familiar with the relationship between motor loss and these factors.
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