Ukushayela Welding inverter. Umdwebo wokuhlelwa kwendikimba inverter we Welding

Isihloko ezocatshangelwa isikimu zakudala zokushisela inverter. Kuze kube manje, nje ithandwa kakhulu, intengo Kwanele zitholakale. Sinenkosi eziningi izimfanelo ezinhle, njengothando kalula ukusebenza nesisindo ongaphakeme. Kodwa, njengabanye izimpahla ezisebenza ngogesi, umshini Welding kungenzeka lilimele. Futhi ukuze afeze ukulungisa izinga, kubalulekile okungenani Imibandela, unombono yokulandelana kwayo ngokohlu, yini izakhi sakhiwa wesifunda inverter. Ngaphandle kwayo, ngeke bakwazi ukulungisa svarochniki kule scheme esebenzisa inverter transformers. Ngakho-ke, kumelwe ufunde okuningi unokuthile akucabangayo mayelana nokuthi kule divayisi.

ulwazi oluyisisekelo mayelana apharathasi inverter

Empeleni, wona lo mbuso iyunithi, yokusebenza yayo isimiso siyafana elisetshenziswa computer. Ukuguqulwa energy kagesi kwenzeka ku izimiso ezifanayo, naphezu kweqiniso lokuthi ubukhulu nokusebenza kwalezi zici kumadivayisi ahlukahlukene. Kunezinyathelo eziningana ezenzeka inverter Welding. Okokuqala kukhona kushintshana voltage nguquko ihlinzekwa elayinini 220 ibe DC. Mayelana lokhu kwenzeka kanjani, uyofunda kancane ngezansi, kanye ikhombisa umdwebo wesifunda we inverter Welding.

Khona-ke ukuguqulela le voltage kwenzeka esikhathini variable, kodwa imvamisa ephakeme. Uyazi ukuthi amapayipi ifrikhwensi 50 Hz. I inverter Welding apharathasi kuwukwanda afinyelela ku-80 Hz tysyach. Khona-ke kubalulekile ukunciphisa ukubaluleka voltage at a imvamisa eliphezulu. Ngesikhathi isinyathelo sokugcina kuyinto ekuguquleni voltage low nge imvamisa labangaba ngu-80 Hz tysyach. is, eqinisweni, zonke izigaba kungaba ngobugebengu Lokhu isifinyezo zingahlukaniswa ngalezindlela izingxenye ezincane. Kodwa ukuqonda isimiso ukusebenza okwanele.

Ngaleyo ndlela kuncishiswe isisindo umshini Welding

Manje, wesifunda kungani sikhethwe kuyinto uhlobo inverter. Bheka yemishini Welding okuyinto ziye zasetshenziswa ngaphambilini, kuhlanganise okuzenzela. injongo yabo eyinhloko - ukunciphisa AC voltage ukuthi ihlinzekwa ovela endlini zikagesi kunani ephephile, kodwa nge zamanje esikhulu yesibili. Ngenxa yalesi sizathu, eyinhloko izinkampani is nilimaza wire ohlabayo kuka yesibili. I ukushuba we wire kuncike kangakanani zamanje uthola e emazombezombe. Ngezansi Umdwebo olotshiwe a inverter Welding esihlokweni. silitadishe ngokucophelela, ukuba umbono walokho izakhi angena kuwo. ngezinye izikhathi zokushisela yazithandela amperes angamakhulu amaningana. Ngenxa yokuthi amandla transformers enjalo ephakeme kakhulu, kodwa asebenza kuphela uma ifrikhwensi 50 Hz, ngaphezu, banalo usayizi esikhulu kakhulu. Njengoba ungase ucabange, ukuvama wamanje input bese okukhipha uyefana. Ngamanye amazwi, uma isetshenziswa eyinhloko izinkampani 50 Hz, secondary ukususa kagesi ne nemingcele efanayo.

Imvamisa yokusebenza ye inverter

Kodwa manje sibonga umshini inverter Welding, okwandisa imvamisa yokusebenza ku-oda hertz abayizinkulungwane ezingamashumi ayisishiyagalombili, futhi kwezinye amadivaysi nokuningi, kungaba izikhathi eziningi ukuze sinciphise ubukhulu Transformers, ezisetshenziswa ukuguquka kagesi. Uma ukwandisa imvamisa yokusebenza, transformer zingancishiswa okungenani izikhathi ezine. Ngakho-ke, isisindo ingqikithi yazo zonke svarochnika kuyoba encane kakhulu. Intengo izindleko kule divayisi nayo iyancishiswa, njengoba kukhona wokusindisa zethusi nensimbi, ezisetshenziswa ekwakheni ama-transformers. Kodwa ukuze uthole imvamisa enjalo, kufanele usebenzise inverter izifunda. Zakhiwa ephezulu amandla emkhakheni-umphumela transistors ukuthi usebenze kwimodi ukhiye. Ngosizo lwabo, lamanje esitshalweni kusukela imvamisa adingekayo ukusebenza. Sicela uqaphele ukuthi umsebenzi ungenziwa kuphela FET ngesikhathi voltage njalo. Kuyaphawuleka ukuthi "Resanta" isikimu Welding inverter kakhulu efana nalowo owasetshenziswa kwamanye amadivayisi.

Isimiso ezisebenza we rectifier

Ngakho-ke, ngaphambi kokuba ubhalise amandla kubo, kubalulekile ukuze uqondise zamanje engenayo. Ngenxa yale njongo a rectifier, lapho diodes zinamandla. Basuke exhunywe ngesimiso somshini ibhuloho. Ngemva kwalokho ingxenye cutoff variable usebenzisa capacitors electrolytic. Lokhu kwenzeka ngesikhathi ukuguqulwa esigabeni sokuqala. Field umphumela transistors uxhumeke kwi-transformer. Ngosizo etholwe voltage aphansi. Njengoba kushiwo ngenhla, lezi transistors ukukhiqiza usuke zamanje imvamisa ngezinye izikhathi ngisho ezingaphezu kuka-80 tysyach Hz. Kuyacaca ukuthi transformer futhi kufanele yakhelwe usebenze ngaphansi lezi nemingcele. Ubukhulu zedivayisi incane kakhulu, hhayi ukuqhathanise nalezo ezazisetshenziselwa ukwenza ezivamile imishini transformer Welding. Kodwa amandla anakho okufanayo. Kusobala ukuthi kukhona izakhi eziningi ezahlukene ukuthi zibalulekile ukwenza operation esitebeleni of umshini Welding. Futhi manje kabanzi mayelana nendlela block ezivamile Welding inverter ngasinye. It has izingxenye ezimbili eziyinhloko - amandla nokulawula wesifunda.

rectifier esiteji

Lokhu block kwenzeka AC ukuguqulwa okuyinto ifika kunethiwekhi 220 volts. Kuyo, zikhona eziningana diodes Semiconductor ngamandla okusezingeni eliphezulu, kanye capacitors electrolytic futhi inductor. Lokhu kuhambisana anikeza lokho uhlelo lokwabelana ngamafayela nge imvamisa yokusebenza 50 Hz kuba njalo. Capacitors kudingeka ukusika ingxenye variable, okuyinto namanje voltage kuyalungiswa. Sicela uqaphele ukuthi kukhona izinketho eziningana for ekulungiseni izifunda voltage ukuphi. Uma uxhumano kumele kwenziwe kunethiwekhi ezintathu okhombisa, umdvwebo wesifunda Semiconductor diodes kuyoba ukuhluka. Ngakho-ke kubalulekile ukuba sithole oda okudingayo Welding inverter wesifunda. Ngezandla zabo, leli thuluzi kungaba uhlanganiswe nje.

izihlungi

Qaphela futhi ukuthi cishe isigamu salesi inyuka voltage ngemva iya lemifanekiso, eqoqwe kuma capacitors electrolytic. Ngamanye amazwi, uma kukhona supply amapayipi 220 volts ke terminals capacitor, uma wenza nesilinganiso, kuyinto 310 V Ukuze lungisani yezwakala zamanje ukuba sigweme noma yikuphi umsindo ephezulu imvamisa, kanye sigweme bangene samandla, kuyadingeka ukuze ufake isihlungi ekhethekile. Ngokuvamile-ke uya mpintsha ukuthi nilimaza phezu ring core kanye isifunda sihlanganisa iSifundazwe capacitors eziningana.

inverter esiteji

Ngokuvamile, i-ukuqaliswa kwe-inverter isebenzisa i-transistors ezimbili ngamandla ukuthi usebenze kwimodi ukhiye. Kuyaphawuleka ukuthi uzobe ogibele i echibini aluminium ukushisa. Futhi, kukhona indlu eyengeziwe ngempoqo fan. Ngenxa yalezi transistors Ungaxhuma DC voltage, okuyinto ke fed a transformer ishayela. Ngaphezu kwalokho, le usuke kwenzeka nge imvamisa labangaba ngu-80 kHz. Kodwa kunomehluko kusukela wamanje kushintshana agelezela esokhethini amandla yasendlini. Okokuqala, inani imvamisa ngokwayo izikhathi eziningi phezu okudlula kuso. Okwesibili, ukuma pulse voltage kushintshana okuyinto elakhiwe FETs unxande kunokuba a sinusoid. Ukuvikela transistors kusukela overvoltage ngokweqile, kubalulekile ukusebenzisa wesifunda ehlanganisa resistors futhi capacitors. Kumele kuqashelwe ukuthi umdwebo ukujikeleza + inverter we Welding akuyona ngaphandle kulezi zinto.

RF transformer

High-imvamisa transformer, lapho zihlala zinamandla kusukela transistors ezisebenza mode usuke, lokho kukunciphisa ngokuphawulekayo ukudleka yayo 65 volts ngokwesilinganiso. Kodwa lokhu kungenzeka babe ku-oda 130 A. Kungenzeka ngisho ukudweba isifaniso ikhoyili ukuthungela, okuyinto esetshenziswa izimoto. I inverters Welding kuya eyinhloko izinkampani we voltage high, kodwa lamanje has nesincane kakhulu. It esuswa yesibili voltage emazombezombe kunani ephansi, kodwa lamanje luyanda. Sicela uqaphele ukuthi ikhoyili imoto isebenza isimiso reverse. Okungukuthi, low voltage wamanje elikhulu yanikezwa eyinhloko emazombezombe. A esuswa yesibili voltage high, kodwa nge ezincane Inani lamanje.

I rectifier okukhipha

Kodwa kubalulekile ukuba sibheke ukuthi izingxenye e-mail olwengeziwe. Welding inverter wesifunda. Ngesikhathi ekhishwa rectifier is futhi usethe, okuyinto eqoqwe kusukela ephezulu amandla Semiconductor diodes. Sinenkosi ngesivinini kakhulu, ezivuliwe futhi ivalwe ngesikhathi isikhathi ngamancozuncozu, okuyinto kancane kakhulu kunalokho nanoseconds 50. Phawula umklamo zokushisela inverters ukuthi kudingeka sithathe izakhi Semiconductor ngendlela ukuthi ukwanelisa nemingcele wokusebenza. diodes Simple ngeke lapho zibhekene nomsebenzi, njengoba ngeke ukwazi ukuvula naseduze ngendlela esifike ngesikhathi. Ngokushesha ziqala Ukushisa ngokweqile futhi ngenxa yalokho, ukwehluleka. Ngenxa yalesi sizathu, umklamo noma ukufakwa kule ukulungisa ukukhiqiza diodes, okuyinto abe izikhathi ezimfushane kakhulu usuke.