Dab tsi yog carbon txhuam rau?

Cov pa roj carbon txhuam yog ib qho khoom siv uas xa cov teeb liab lossis lub zog ntawm qhov chaw ruaj khov thiab qhov sib hloov ntawm qee lub cav lossis lub tshuab hluav taws xob. Lub hom phiaj ntawm cov pa roj carbon txhuam yog los ua qhov tam sim no ntawm qhov txav ntawm lub cev muaj zog, thiab muaj peev xwm hloov tau qhov tam sim no los ntawm qhov kawg ruaj mus rau qhov tig ntawm lub tshuab hluav taws xob lossis lub cev muaj zog. Nyob rau hauv DC motors, nws kuj yog lub luag hauj lwm rau commutation (rectification) ntawm alternating electromotive quab yuam nyob rau hauv lub armature winding.
(1) Nyob rau hauv lub commutator lub cev muaj zog, tus txhuam hniav kuj plays lub luag hauj lwm commutation, uas yuav hloov tau cov kev taw qhia ntawm tam sim no;
(2) Grounding carbon txhuam, uas tuaj yeem tso tawm tam sim no thiab qhia cov nqi hluav taws xob ntawm cov ncej loj rau hauv av los ntawm cov txhuam hniav;
(3) Sab nraud tam sim no (excitation tam sim no) yog ntxiv rau lub rotor rotor (input tam sim no) los ntawm cov pa roj carbon txhuam, thiab lub cev muaj zog carbon txhuam ntxiv;
(4) Cov ncej loj (hauv av) yog coj mus rau cov cuab yeej tiv thaiv rau lub rotor grounding tiv thaiv thiab ntsuas qhov zoo thiab qhov tsis zoo ntawm lub rotor, thiab lub commutator ntawm av voltage yog tsim los ntawm txhuam thiab commutation rings, thiab cov pa roj carbon txhuam yog ib hom txhuam.
Txhawm rau muab nws yooj yim, cov pa roj carbon txhuam yog siv los tig lub cev muaj zog, nkag mus rau lub zog hluav taws xob rau lub kauj los ntawm kev sib hloov, thiab hloov cov kev taw qhia ntawm qhov tam sim no.