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
The structure of an AC/DC dual-purpose motor is basically the same as that of a DC motor, but it has different armature structures and excitation methods. In fact, the armature structure with a grooved core is often adopted. The electromagnetic force acting on the conductors placed in the armature slots is relatively small, making it easier to meet the mechanical strength requirements for insulating materials during high-speed operation. Although excitation methods can be made into series-excited and shunt excited types, the torque of shunt excited motors is much lower than that of series-excited ones. Therefore, it is usually made into a series-excited, grooved armature DC motor.
The stator of an AC/DC dual-purpose motor is equipped with a main pole with embedded series-excited windings. The rotor, like the grooved armature of a DC motor, has a magnetic circuit composed of laminated cores. Stator laminals are often made into the integral shape as shown in (c) of Figure 1 to facilitate manufacturing and reduce costs.
Armature cores are generally in the form of inclined grooves. The air gap between the stator and rotor is larger than that of a DC motor and is uneven. The maximum air gap at the tip is 3 to 4 times that of the main air gap. Other components such as the brush holder and end cover of the electric brush are similar to those of a common DC motor.
AC/DC dual-purpose motors have different structural forms and are sometimes made into split types. The split type structure is similar to that of torque type motors. For large-capacity, high-speed or AC/DC dual-purpose motors with special requirements, commutation poles also need to be adopted to improve commutation, suppress sparks and reduce radio interference.
The structure of an AC/DC dual-purpose motor is basically the same as that of a DC motor, but it has different armature structures and excitation methods. In fact, the armature structure with a grooved core is often adopted. The electromagnetic force acting on the conductors placed in the armature slots is relatively small, making it easier to meet the mechanical strength requirements for insulating materials during high-speed operation. Although excitation methods can be made into series-excited and shunt excited types, the torque of shunt excited motors is much lower than that of series-excited ones. Therefore, it is usually made into a series-excited, grooved armature DC motor.
The stator of an AC/DC dual-purpose motor is equipped with a main pole with embedded series-excited windings. The rotor, like the grooved armature of a DC motor, has a magnetic circuit composed of laminated cores. Stator laminals are often made into the integral shape as shown in (c) of Figure 1 to facilitate manufacturing and reduce costs.
Armature cores are generally in the form of inclined grooves. The air gap between the stator and rotor is larger than that of a DC motor and is uneven. The maximum air gap at the tip is 3 to 4 times that of the main air gap. Other components such as the brush holder and end cover of the electric brush are similar to those of a common DC motor.
AC/DC dual-purpose motors have different structural forms and are sometimes made into split types. The split type structure is similar to that of torque type motors. For large-capacity, high-speed or AC/DC dual-purpose motors with special requirements, commutation poles also need to be adopted to improve commutation, suppress sparks and reduce radio interference.