Vim li cas commutator ua haujlwm hauv DC tshuab?

A commuatoryog ua hauj lwm nyob rau hauv DC (direct tam sim no) cov cav tov, xws li DC motors thiab DC generators, rau ob peb yam tseem ceeb:

Kev hloov pauv ntawm AC rau DC: Hauv DC lub tshuab hluav taws xob, lub tshuab hluav taws xob ua haujlwm hloov pauv tam sim no (AC) induced hauv armature windings rau hauv cov zis tam sim no (DC). Raws li lub armature rotates nyob rau hauv lub magnetic teb, lub commutator reverses cov kev taw qhia ntawm tam sim no nyob rau hauv txhua lub armature coil ntawm lub sij hawm tsim nyog, xyuas kom meej tias cov generated tso zis tam sim no ntws tsis tu ncua nyob rau hauv ib qho kev taw qhia.

Kev saib xyuas ntawm kev taw qhia tam sim no: Hauv DC motors, lub commutator xyuas kom meej tias cov kev taw qhia ntawm tam sim no los ntawm armature windings tseem nyob tas li thaum lub rotor rotates nyob rau hauv lub magnetic teb. Qhov no unidirectional ntws ntawm tam sim no ua ib tug nruam torque uas tsav lub cev muaj zog tig.

Generation ntawm Torque: Los ntawm ib ntus thim rov qab cov kev taw qhia ntawm tam sim no nyob rau hauv armature windings, lub commutator generates ib tug tas li torque nyob rau hauv DC motors. Qhov torque no ua rau lub cev muaj zog los kov yeej inertia thiab cov khoom siv sab nraud, ua rau kev sib hloov mus tas li.

Kev tiv thaiv ntawm Armature Shorts: Cov commutator ntu, insulated los ntawm ib leeg, tiv thaiv luv luv ntawm armature coils uas nyob ib sab. Raws li lub commutator tig, nws ua kom ntseeg tau tias txhua lub armature coil tswj hluav taws xob tiv tauj nrog rau sab nraud Circuit Court los ntawm cov txhuam hniav thaum tsis txhob sib cuag nrog cov coils nyob sib ze.

Tswj kev ceev thiab torque: Tus tsim ntawm lub commutator, nrog rau cov naj npawb ntawm ntu thiab winding configuration, tso cai rau kev tswj ntawm qhov ceev thiab torque yam ntxwv ntawm DC tshuab. Los ntawm qhov sib txawv xws li qhov siv hluav taws xob thiab lub zog ntawm cov hlau nplaum, cov neeg ua haujlwm tuaj yeem kho qhov ceev thiab lub zog tawm ntawm lub cev muaj zog lossis lub tshuab hluav taws xob kom haum rau cov kev xav tau tshwj xeeb.

Zuag qhia tag nrho, lubcommuatorplays lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm DC cov cav tov los ntawm kev pab txhawb kev hloov hluav taws xob rau hauv lub zog siv tshuab (hauv motors) lossis vice versa (hauv cov tshuab hluav taws xob) thaum tswj kev sib txuas hluav taws xob txhim khu kev qha thiab tswj cov kev taw qhia thiab qhov loj ntawm cov dej ntws tam sim no.