Te Mahi a ngā Mōta Hiko: He Aratohu Katoa, Taipitopito hoki
Ko te mōtini hiko tētahi o ngā mea hou rawa atu i roto i te hītori o te hangarau tangata. Mai i ngā waka hiko ki ngā taputapu o te whare, he mahi nui tā ngā mōtini hiko. Engari me pēhea te mahi a ngā mōtini hiko? Mā tēnei tuhinga ka whakaratohia he aratohu whānui me te taipitopito mō te mahi a ngā mōtini hiko, e ruku hohonu ana ki ngā mātāpono taketake, ngā wāhanga nui, me ngā tikanga whakahaere e āhei ai rātou ki te mahi.
1. Ngā Mātāpono Taketake o ngā Mōta Hiko
Ka mahi ngā motuka hiko i runga i ngā mātāpono taketake o te aukume hiko. Ina rere te iahiko i roto i tētahi waea i roto i tētahi papa aukume, ka tukuna he kaha aukume hiko, e mōhiotia ana ko te kaha Lorentz, ki runga i te waea. Mā tēnei kaha ka neke te waea, ā, ka taea te huri i tēnei nekehanga hei nekehanga miihini ka taea te whakamahi mō ngā kaupapa maha.
Ko te ture a Faraday mō te whakapūngao hikohiko me te ture a Ampere ngā mātāpono matua e rua e whakahaere ana i te whakahaere o ngā motuka hiko. E kī ana te ture a Faraday ka puta he kaha hikohiko (EMF) i roto i taua ara iahiko mēnā ka huri te papa aukume i roto i tētahi ara iahiko. I tētahi atu taha, e kī ana te ture a Ampere ka pāngia te iahiko e rere ana i roto i tētahi kaiārahi kua whakanohoia ki roto i tētahi papa aukume.
2. Ngā Wāhanga Matua o te Mōta Hiko
Hei mārama ake ki te mahi a te motuka hiko, he mea nui kia mārama ki ōna wāhanga matua:
a. Rotor
Ko te rotor te wāhanga hurihuri o te motuka hiko. Ko te tikanga he koiri waea e hurihuri ana i roto i te papa aukume. Ko te papa aukume e hangaia ana e te ia e rere ana i roto i tēnei koiri waea ka puta he kaha e huri ai te rotor.
b. Pūmau
Ko te stator te wāhanga tūmau o te motuka hiko e hanga ana i tētahi papa aukume e taunekeneke ana me te rotor. Ko te stator he mea hanga i ngā aukume tūturu, i ngā koiri hikohiko rānei. Koinei te wāhi e puta ai te taunekeneke hikohiko tuatahi e whakaputa ana i te hurihanga i roto i te rotor.
c. Mowhiti Whakapā me te Paraihe
I roto i ētahi motuka hiko, inā koa ngā motuka DC, ka whakamahia ngā mowhiti whakapā me ngā paraihe hei tuku i te iahiko hiko ki te rotor. Ka huri ngā mowhiti whakapā me te rotor, i te mea kei te piri tonu ngā paraihe ki ngā mowhiti whakapā, ka taea ai te rere o te iahiko ki ngā koiri rotor.
d. Whakawhitiwhiti
Ko te commutator he wāhanga e whakarerekē ana i te ahunga o te iahiko i roto i te rotor, kia mau tonu ai te hurihanga o te rotor e te kaha hikohiko. He mea nui tēnei i roto i ngā motuka DC.
3. Ngā momo mōtini hiko
He maha ngā momo motuka hiko, he rerekē te tikanga whakahaere o ia momo. Anei ētahi o ngā momo matua:
a. Mōta DC (Auaha Tika)
Ka whakamahia e ngā motuka DC te au tika hei taraiwa i te rotor. Ka pupuri te commutator me ngā paraihe i roto i te motuka DC i te ahunga au tika i roto i ngā koiri rotor, ka hua ake he hurihuri tonu. He whānuitia te whakamahinga o ngā motuka DC i roto i ngā tono e hiahia ana ki te whakahaere tere tika, pērā i ngā waka hiko me ngā taputapu ahumahi.
b. Ngā Mōta AC (Au Hurihuri)
Ka whakamahia te auhiko whakawhiti hei whakahaere i ngā motuka AC. E rua ngā momo matua o ngā motuka AC: ngā motuka whakapūmau me ngā motuka tukutahi. I roto i ngā motuka whakapūmau, ka whakapūmauhia he auhiko hiko ki roto i te rotor, ka puta he papa aukume e taunekeneke ana ki te stator. I roto i ngā motuka tukutahi, ka huri te rotor i te tere ōrite ki te auhiko e tukuna ana.
c. Mōta DC Kore Paraihe (BLDC)
Ka whakamahia e ngā motuka BLDC ngā aukume tuturu i roto i te rotor me ngā koiri hikohiko i roto i te stator. Ka tangohia e rātou ngā paraihe me ngā commutator hei tuku i te iahiko ki te rotor, kia roa ake ai, kia pai ake ai hoki.
4. Te Mahi a te Mōta Hiko
Ka taea te wehewehe i te tukanga mahi a te motuka hiko ki ētahi wāhanga matua:
a. Te Whakarato i te Iahiko Hiko
Ko te taahiraa tuatahi i roto i te whakahaere i te motuka hiko ko te tuku i te iahiko hiko ki ngā koiri waea. Ka taea tēnei te iahiko tika (DC) te iahiko tauutuutu rānei (AC), i runga i te momo motuka.
b. Te Hanganga o te Papa Aukume
Ka puta he papa aukume i te iahiko e rere ana i roto i te koiri waea i roto i te rotor, i te stator rānei. I roto i te motuka AC, ka taea hoki te whakaputa i te papa aukume mā te iahiko e rere ana i roto i te stator anake.
c. Te Taunekeneke o te Papa Aukume
Ka taunekeneke te papa aukume i hangaia e te iahiko hiko i roto i te koiri ki te papa aukume o nāianei (mai i ngā aukume tuturu i roto i te stator, mai i te papa aukume rānei i hangaia e ngā koiri stator). Mā tēnei taunekeneke ka hangaia he kaha aukume ki runga i te rotor.
d. Te Hurihanga o te Rotor
Ko te kaha hikohiko e puta mai ana ka huri te rotor. I roto i te motuka DC, he mahi nui tā te commutator ki te whakarite kia rere te iahiko i te huarahi tika, kia mau tonu ai te hurihanga o te rotor. I roto i te motuka AC, ko te auau o te iahiko hurihuri te mea e whakatau ana i te tere hurihanga o te rotor.
5. Ngā Whakamahinga Mōta Hiko
He whānuitia ngā whakamahinga o ngā motuka hiko i roto i ngā ahumahi me te oranga o ia rā:
a. Ahumahi Motuka
I roto i te umanga motuka, ka whakamahia ngā motuka hiko i roto i ngā waka hiko (EV). He wāhanga matua ēnei o te ia o te ao ki te whakaiti i ngā tukunga waro me te whakawhirinaki ki ngā wahie pūmua.
b. Ngā Taputapu o te Whare
E whakamahia ana ngā mōtini hiko i roto i ngā taputapu whare maha pērā i ngā mīhini horoi kakahu, ngā mīhini whakaranu, ngā pā hau, me ngā taputapu kai hiko, ā, e āwhina ana ki te whakahaere i ngā mahi o te whare.
c. Ahumahi Hanga
I roto i te umanga hanga, ka whakamahia ngā motuka hiko i roto i ngā mīhini hanga, i ngā karetao ahumahi, me ngā kaikawe. E kiia ana ko rātou te pou tuara whakahaere o ngā whare hanga maha.
d. Hauora me te Hauora
I roto i te hauora, ka whakamahia ngā motuka hiko i roto i ngā taputapu hauora pēnei i ngā MRI, ngā taputapu whakarongo, me ngā taputapu whakaora, hei whakapai ake i te kounga o te tautuhi mate me te tiaki tūroro.
6. Whakamutunga
Kua hurihia e ngā motuka hiko te ao hangarau me ō tātou oranga o ia rā i roto i ngā huarahi maha. I runga i ngā mātāpono taketake o te hiko aukume, ngā wāhanga nui e mahi tahi ana, me ngā tikanga kua whakaritea pai, ka taea e ngā motuka hiko te whakaputa i te mana miihini pono. Mā te mārama ki te mahi a ngā motuka hiko, ehara i te mea ka homai he māramatanga hohonu ake ki a tātou mō ngā taputapu e whakamahia ana e tātou i ia rā, engari ka whakatakoto hoki i te ara mō ngā mahi auaha nui ake i te heke mai. I te haere tonu o te whanaketanga o te hangarau motuka hiko, ko wai ka mōhio he aha ngā kitenga me ngā tono ka kitea e tātou i ngā tau e haere ake nei?
