Wuxi Shiyuan Motor Co., LTD
Add:Tianxi Intelligent Manufacturing Park, No. 123,
Xinzhuang Road, Zhutang Town, Jiangyin City
Contact：Miss Lv
Mob:13373630089
18068255610
Tel：0510-83741758
Fax:0510-83570758
Email:sale@wxsymotor.com
Website:www.wxsymotor.com
AC/DC dual-purpose motors, due to their relatively small starting current and large starting torque, are often used in places where starting is difficult or in mechanisms that require large starting torque and instantaneous intermittent operation for transmission purposes, such as operating control switches, etc. In this way, a large starting torque can be provided and a much smaller external dimension can be selected compared to other types of motors.
In addition, the AC/DC dual-purpose motor has a wide speed regulation range and can achieve high speed. The rotational speed of a general asynchronous motor depends on the number of poles of the motor and the power supply frequency. The maximum rotational speed of a one-pole motor powered by 50Hz is less than 30,000 or/min. Of course, variable-frequency motors can increase the rotational speed, but a dedicated power supply is required. In terms of design, the speed can be increased by reducing the number of armature conductors. For instance, the speed of AC/DC dual-purpose motors used in power tools can reach 9,900 to 145 revolutions per minute, and the maximum speed of high-speed centrifuges used in medical devices can reach 20,000 r/min. Therefore, this type of motor can be selected in places where high rotational speed is required. For instance, dental drill bits are driven by AC/DC dual-purpose motors.
The mechanical characteristics of AC/DC dual-purpose motors are relatively soft. When the torque increases, the speed drops rapidly, resulting in a limited increase in output power. They are less likely to overload due to increased load and are suitable for constant power control applications or places where the load torque frequently changes significantly. For instance, in the constant tension structure of tape recorders and the transmission mechanism of bicycles, this type of motor can replace permanent magnet DC motors.
When the load is very small, the speed of an AC/DC dual-purpose motor will be very high, so it cannot operate at full voltage or no-load. Under normal circumstances, when operating at full pressure. The minimum load should not be less than 25% to 30% of the rated value.
AC/DC dual-purpose motors, due to their relatively small starting current and large starting torque, are often used in places where starting is difficult or in mechanisms that require large starting torque and instantaneous intermittent operation for transmission purposes, such as operating control switches, etc. In this way, a large starting torque can be provided and a much smaller external dimension can be selected compared to other types of motors.
In addition, the AC/DC dual-purpose motor has a wide speed regulation range and can achieve high speed. The rotational speed of a general asynchronous motor depends on the number of poles of the motor and the power supply frequency. The maximum rotational speed of a one-pole motor powered by 50Hz is less than 30,000 or/min. Of course, variable-frequency motors can increase the rotational speed, but a dedicated power supply is required. In terms of design, the speed can be increased by reducing the number of armature conductors. For instance, the speed of AC/DC dual-purpose motors used in power tools can reach 9,900 to 145 revolutions per minute, and the maximum speed of high-speed centrifuges used in medical devices can reach 20,000 r/min. Therefore, this type of motor can be selected in places where high rotational speed is required. For instance, dental drill bits are driven by AC/DC dual-purpose motors.
The mechanical characteristics of AC/DC dual-purpose motors are relatively soft. When the torque increases, the speed drops rapidly, resulting in a limited increase in output power. They are less likely to overload due to increased load and are suitable for constant power control applications or places where the load torque frequently changes significantly. For instance, in the constant tension structure of tape recorders and the transmission mechanism of bicycles, this type of motor can replace permanent magnet DC motors.
When the load is very small, the speed of an AC/DC dual-purpose motor will be very high, so it cannot operate at full voltage or no-load. Under normal circumstances, when operating at full pressure. The minimum load should not be less than 25% to 30% of the rated value.