servo motor is mainly in the national economy and power-hungry

As is known to all,servo motor is mainly in the national economy and power-hungry,and energy saving is the motor industry an eternal theme.Some experts said,China's energy shortage is mostly caused by three phase induction motor energy waste and improper use.At present,the industrial energy consumption accounts for about 70% of the total energy consumption of electrical energy consumption accounted for about 60%~70% of the industrial energy consumption according to the survey,the level of IE1 motor market share of nearly 90% market share,while firms achieve IE2 above 8% high efficiency and energy saving motor that happened to the entire social resources enormous waste.So,to develop efficient motor is one of the important measures to improve energy efficiency,meet the needs magnet prices of the development of our country,is also very necessary. 

Servo motor rotor squirrel-cage often make it,but in order to make the servo motor has a wide speed range,linear mechanical properties.No "rotation" phenomenon and fast response performance,compared with the ordinary motor,should have the characteristics of small rotor resistance and moment of inertia of the two.The rotor current is widely applied structure has two forms: one is high resistivity of conductive materials made of high resistivity of the conducting bar cage rotor,in order to reduce the rotational inertia of the rotor,the rotor doing long and thin;Another kind is made of aluminum alloy hollow cup induction motor price rotor,glass is very thin,only 0.2 0.3 mm in order to reduce the magnetic resistance of magnetic circuit,should be placed in the hollow cup rotor stator fixed.The hollow cup rotor moment of inertia is small,responsive,and stable running,so widely used. According to our country attaches great importance to enhance the efficiency of the motor,it is enough to illustrate points: one is that in countries currently use less efficient motor,secondly,still have a lot of similar support measures for efficient servo motor.In addition,a good efficient motor mainly rely on import,prices high.In addition,most of domestic enterprises for production of high cost and high efficient motor data "forget and stop" this requires countries increase support for domestic motor manufacturing enterprises,the domestic product market competitive power as soon as possible.