Kungani kuqashwa i-commutator emishinini ye-DC?

A umhambisiisetshenziswa emishinini ye-DC (yamanje eqondile), njengama-DC motors kanye namajeneretha e-DC, ngezizathu ezimbalwa ezibalulekile:

Ukuguqulwa kwe-AC ibe yi-DC: Kumajeneretha e-DC, umgibeli usebenzela ukuguqula i-alternating current (AC) efakwe kumawindi e-armature ibe okukhiphayo kwamanje (DC). Njengoba i-armature ijikeleza ngaphakathi kwendawo kazibuthe, umgibeli uhlehlisa isiqondiso samanje kukhoyili ngayinye ye-armature ngesikhathi esifanele, eqinisekisa ukuthi okukhiphayo okukhiqizwayo kwamanje kugeleza ngokuqhubekayo ohlangothini olulodwa.

Ukugcinwa Kwezikhombisi-ndlela Zamanje: Kumamotho e-DC, umgibeli uqinisekisa ukuthi isiqondiso samanje ngama-windings e-armature sihlala singashintshile njengoba i-rotor izungeza ngaphakathi kwendawo kazibuthe. Lokhu kugeleza kwe-unidirectional yamanje kukhiqiza i-torque eqhubekayo eshayela ukujikeleza kwemoto.

Isizukulwane Se-Torque: Ngokuhlehlisa ngezikhathi ezithile isiqondiso samanje kumawindi e-armature, isihambisi sikhiqiza i-torque engaguquki kumamotho e-DC. Le torque yenza injini ikwazi ukunqoba inertia nemithwalo yangaphandle, okuholela ekujikelezeni okubushelelezi nokuqhubekayo.

Ukuvimbela Okufushane Kwezikhali: Amasegimenti abagibeli, avaleleke ukusuka kwenye, avimbela amasekhethi amafushane phakathi kwamakhoyili ezikhali eziseduze. Njengoba umshayeli ezungeza, uqinisekisa ukuthi ikhoyili ngayinye yezikhali igcina ukuxhumana kukagesi nesekhethi yangaphandle ngamabhulashi kuyilapho igwema ukuthintana namakhoyili angomakhelwane.

Ukulawulwa Kwesivinini kanye neTorque: Idizayini yesihambisi, kanye nenani lamasegimenti nokucushwa kwamajika, kuvumela ukulawula isivinini kanye nezici zetorque zemishini ye-DC. Ngezici ezihlukene ezifana ne-voltage esetshenziswayo namandla wenkundla kazibuthe, opharetha bangalungisa isivinini kanye nokuphuma kwe-torque yenjini noma ijeneretha ukuze ivumelane nezidingo ezithile.

Sekukonke, iumhambisiidlala indima ebalulekile ekusebenzeni kwemishini ye-DC ngokwenza lula ukuguqulwa kwamandla kagesi abe amandla emishini (kumamotho) noma ngokuphambene nalokho (kumajeneretha) kuyilapho kugcinwa ukuxhumana okuthembekile kukagesi nokulawula isiqondiso nobukhulu bokugeleza kwamanje.