電機的能量轉換 Motor as an energy converter
電機的功能就是將電能轉化為機械能,為機械的運轉產生推動力
The function of the motor is converting electrical power to mechanical power.it provides motion force to a mechanical device.
電機的損耗 Losses
電機在能量轉換過程中會產生能量損耗,例如:摩擦損耗、繞組發熱損耗、鐵磁損耗。
※空心杯電機不會產生鐵磁損耗。
There will be power losses in the power conversion process e.g.frictional losses,power losses of winding,iron losses.
※lron losses do not occur in the coreless motor.
電機的特性曲線 Performance curve
特性曲線由以下4個關鍵參數構成:
1、空載轉速(No):指電機在額定電壓下不連接任何負載時,在輸出軸端測得的轉速,單位為RPM(轉每分鐘)。
2、空載電流(Io):指電機在額定電壓下不連接任何負載時,在電機兩端子上測得的輸入電流量,單位為A(安培)。
3、堵轉轉矩(Ts):指電機在額定電壓下,因加載引致電機停止旋轉時,測得的最大轉矩,單位為g.cm(克.厘米)。
4、堵轉電流(Is):指電機在額定電壓下,因加載引致電機停止旋轉時,測得的電流,單位為A(安培)。
※建議您不要對電機進行堵轉操作,因為此操作有可能導致電機“退磁”甚至造成燒損。
It consiss of 4 major parameters:
1、No-load speed(No):Motor with no load under rated voltage,speed is measured in the output shaftside.Unit:RPM(rotation per minute)
2、No-load current (Io):Motor wifh no-load under rated voltage,input ourrent is measured in the morot teminals.Unit:A(Ampere)
3、Stall torque(Ts):Motor with rated voltage,maximum torque is measured when motor stop rotation under load,Unit:g.cm(gram.centimeter)
4、Stall current (Is):Motorwith rated voltage,current is measured when motor stop rotation under load,Unit:A(Ampere)
※It is recommended to operate the motor in stall position.It will result in de-magnetization or even damage to the motor.