Cov Cheebtsam tseem ceeb ntawm DC Tsav

Nws muaj ob ntu: stator thiab rotor. Nco tseg: Tsis txhob cuam tshuam cov ncej sib txuas nrog lub commutator.

Lub stator muaj xws li: lub ntsiab sib nqus ncej, ncej, commutating ncej, txhuam los ua ke, thiab lwm yam.

Lub rotor muaj xws li: tub ntxhais armature, armature winding, commutator, ncej, thiab kiv cua, thiab lwm yam.

Rotor Composition
Lub rotor ntawm DC lub cev muaj zog muaj cov tub ntxhais armature, armature, commutator, thiab lwm yam. Cov hauv qab no yog cov lus piav qhia ntxaws ntxaws ntawm txhua yam:

1. Armature Core: Nws muaj nuj nqi yog tuav lub armature winding thiab kis magnetic flux, txo eddy tam sim no losses thiab hysteresis poob generated nyob rau hauv lub armature tub ntxhais thaum lub sij hawm lub cev muaj zog ua hauj lwm.

2. Armature: Nws muaj nuj nqi yog los tsim electromagnetic torque thiab induced electromotive quab yuam, yog li ua lub zog hloov dua siab tshiab. Lub armature winding muaj ntau coils los yog iav - insulated tiaj tus hlau tooj liab hlau los yog siab - lub zog enameled hlau.

3. Lub commutator, tseem hu ua rectifier, nyob rau hauv DC lub cev muaj zog, converts DC tam sim no los ntawm cov txhuam hniav mus rau AC tam sim no nyob rau hauv armature winding, stabilizing lub electromagnetic torque. Hauv DC lub tshuab hluav taws xob, nws hloov AC electromotive force (EMF) ntawm armature winding rau hauv DC EMF tso tawm los ntawm txhuam.

Lub commutator muaj ntau ntu cylindrical insulated nrog mica. Txhua coil ntawm armature winding yog txuas nrog ob ntu commutator. Hauv DC lub tshuab hluav taws xob, lub tshuab hluav taws xob hloov pauv hloov hluav taws xob hloov hluav taws xob nyob rau hauv armature winding rau hauv DC EMF ntawm cov txhuam hniav, tso cai rau tam sim no ntws los ntawm kev thauj khoom. Lub tshuab hluav taws xob DC tso tawm hluav taws xob hluav taws xob rau lub nra, thiab ib txhij, tam sim no ntws los ntawm armature coils. Qhov no electromagnetic torque, generated los ntawm kev sib cuam tshuam nrog lub magnetic teb, muaj ib tug opposite nyiam rau lub tshuab hluav taws xob cov kev taw qhia. Tus thawj mover yuav tsum kov yeej no electromagnetic torque tsav lub armature tig. Yog li ntawd, thaum tso tawm hluav taws xob hluav taws xob mus rau lub nra, lub tshuab hluav taws xob kuj absorbs lub zog siv hluav taws xob los ntawm lub tshuab hluav taws xob, yog li paub txog DC lub tshuab hluav taws xob ua haujlwm ntawm kev hloov hluav taws xob rau hauv hluav taws xob.