Mfundo yogwirira ntchito yolimbana ndi mafani amagetsi, kukana kwa mafani amagetsi ndi zizindikiro zosweka.
Sinthani magetsi kukhala kutentha
Kukana kwa magetsi kwa fan yamagetsi kumagwira ntchito makamaka posintha mphamvu yamagetsi kukhala mphamvu ya kutentha.
Choletsa mu fan yamagetsi, chomwe chimadziwikanso kuti thermistor, chili ndi gawo lalikulu pakuwunika kutentha kwa ma windings a mota. Kutentha kwa ma windings a mota kukakwera, mtengo wotsutsa wa thermistor udzachepa. Kusinthaku kumachitika chifukwa cha ubale wosagwirizana ndi kutentha pakati pa mtengo wotsutsa wa thermistor ndi kutentha, ndiko kuti, kutentha kukakwera, mtengo wotsutsa udzachepa. Mtengo wotsutsa ukafika kutentha kwina, udzatsika kufika pamtengo winawake, zomwe zimapangitsa kuti dera loyambirira la mtengo lizimitse ntchito, kotero kuti fan yamagetsi imasiya kugwira ntchito. Njirayi kwenikweni ndi yoteteza fan yamagetsi, kuteteza kuwonongeka chifukwa cha kutentha kwambiri.
Kuphatikiza apo, mfundo yogwirira ntchito yolimbana imakhudzanso kusintha kwa mphamvu yamagetsi. Mphamvu yamagetsi ikadutsa mu resistor, chifukwa cha mphamvu ya thermoelectric ya resistor, kutentha kwa pamwamba pa resistor kudzakwera, ndipo mtengo wamagetsi udzasinthanso. Mwa kusintha mphamvu yamagetsi, magawo a kukana amatha kusinthidwa, monga mtengo wa kukana ndi mtengo wamagetsi, kuti akwaniritse kukhazikika kwa dera ndikuletsa zochitika zamphamvu zamagetsi.
Pogwiritsa ntchito mafani amagetsi, kukana sikuti kumangoteteza kokha, komanso kumatenga nawo mbali pakulamulira liwiro ndi njira yowongolera kutentha kwa fan yamagetsi. Mwachitsanzo, mu fan yoziziritsira yamagetsi yamagalimoto, magwiridwe antchito a fan amayendetsedwa ndi njira zosiyanasiyana zowongolera (monga "thermistor switch + relay" control mode), ndipo liwiro la fan limasinthidwa lokha malinga ndi kutentha kwa madzi kapena liwiro. Njira yowongolera iyi sikuti imangowonjezera magwiridwe antchito a fan yamagetsi, komanso imatsimikizira kuti ikugwira ntchito bwino.
Zizindikiro zazikulu za kulephera kwa mphamvu ya mafani amagetsi ndi izi:
Mpweya wotuluka sungathe kusinthidwa, ndiko kuti, mpweya wotuluka wa fan sungathe kusinthidwa momwe mukufunira.
Palibe giya ya 1234, pali chotulutsira chimodzi chokha, kapena sichigwira ntchito.
Zizindikiro izi zikusonyeza kuti choletsa cha fan yamagetsi chikhoza kukhala kuti chawonongeka, zomwe zimapangitsa kuti chisagwire bwino ntchito. Choletsa chimagwira ntchito ngati choletsa mphamvu zamagetsi komanso choteteza mphamvu zamagetsi kupita ku mphamvu zamagetsi, ndipo chikawonongeka, chingapangitse kuti mpweya wotuluka wa fan usathe kusinthidwa, kapena sichingagwire ntchito konse. Kuphatikiza apo, choletsa chikagwira ntchito bwino, kukana kwake kumakhala kopanda malire, pamene mphamvu yolowera ipitirira mtengo winawake, kukana kwake kudzakhala kochepa mwadzidzidzi, kotero kuti dera limakhala lafupifupi, zomwe zimapangitsa kuti fuse ichepe, ndipo zimathandiza kuteteza chipangizocho.
Momwe mungayezere molondola kukana kwa fan yamagetsi
Choyamba, udindo wa kukana kwa mafani amagetsi ndi zolakwika zofala
Kukana kwa fan yamagetsi ndi chimodzi mwazinthu zofunika kwambiri pakulamulira liwiro la injini, lomwe limapezeka posintha magetsi. Zolakwika zomwe zimachitika nthawi zambiri zimaphatikizapo kuwonongeka kwa kukana, kukhudzana koyipa kapena kutseguka kwa magetsi, ndi zina zotero, zomwe zimapangitsa kuti injini isagwire ntchito bwino.
Chachiwiri, njira ndi njira zoyezera kukana
1. Chotsani magetsi ndikuchotsa chivundikiro cha fan kuti muwone ngati pali kukana.
2. Gwiritsani ntchito multimeter kuti mugwire ndodo yoyezera kumapeto onse awiri a resistance. Multimeter iyenera kuyikidwa pa resistance measurer gear. Ngati resistance ingathe kusinthidwa, ikani multimeter pa rheostat gear kuti resistance iwerengedwe bwino.
3. Werengani mtengo wotsutsa ndikuyerekeza ndi mtengo wotsimikizira wa choyezera kukana. Ngati kuwerenga kuli pafupi ndi mtengo wotsimikizira, kukana kumakhala kwabwinobwino; Apo ayi kukana kumawonongeka.
Chachitatu, njira zodzitetezera
1. Poyesa kukana, magetsi ayenera kuchotsedwa kaye kuti apewe ngozi.
2. Ngati multimeter ikugwiritsidwa ntchito poyesa kukana kosinthika, potozani resistor kufika pamlingo wapamwamba musanayese kuti mupewe kuwonongeka kwa resistor.
3. Ngati kukana kwa chipangizocho sikuli bwino, gwiritsani ntchito sopo wotsukira kuti muyeretse ziwalo zolumikizira ndikuwona ngati zomangirazo zalumikizidwa.
Iv. Mapeto
Pogwiritsa ntchito njira yomwe ili pamwambapa yoyezera kukana, titha kudziwa mwachangu komanso molondola ngati kukana kwa fan yamagetsi kwawonongeka, kuti tithe kuisintha pakapita nthawi ndikuwonetsetsa kuti fan yamagetsi ikugwira ntchito bwino. Nthawi yomweyo, tikulimbikitsidwa kusamala za chitetezo mukamagwiritsa ntchito mafani amagetsi komanso osawagwiritsa ntchito mopitirira muyeso kwa nthawi yayitali.
Chonde tiimbireni foni ngati mukufuna zinthu zotere.
Zhuo Meng Shanghai Auto Co., Ltd. yadzipereka kugulitsa zida zamagalimoto za MG&MAUXS zomwe zikulandiridwa kugula.
