Hauv peb daim ntawv thov lab ntawm Wuxi Huipu Electronics Co., Ltd., peb tau daws teeb meem txaus siab txaus -frequency transformer teeb meem kom paub txog tus qauv: feem ntau qhov kev ua tsis tiav tsis yog los ntawm cov qauv tsim tsis zoo, tab sis los ntawm peb qhov kev sib tw rov ua dua - suab nrov, tsis xav tau cua sov, thiab kev ua tau zoo ntawm kev poob siab {4} hauv ntiaj teb. Ntawm no yog li cas peb los daws lawv, raws li cov haujlwm tiag tiag es tsis yog kev xav.
Suab nrov Acoustic: Thaum Koj Hloov Pauv Pib "Singing"
Ob peb lub hlis dhau los, tus neeg siv khoom tsim kho hluav taws xob kho mob tau tshaj tawm tias muaj kev ntxhov siab siab - suab qw nrov nrov ntawm lub teeb. Lub schematic yog huv si, cov khoom nyob rau hauv spec, tab sis lub transformer emissions 12kHz suab uas ua tsis tau tejyam acoustic. Peb taug qab nws mus rau magnetostriction nyob rau hauv lub ferrite core ua ke nrog intermittent discontinuous conduction hom (DCM) ua hauj lwm.
Peb cov tshuaj tsis yog "ntxiv kua nplaum." Peb tau kho cov qauv gapping kom txo tau flux ceev viav vias ntawm lub teeb load, hloov lub voj tswj kom tswj tau qhov txuas txuas ntxiv yog qhov ua tau, thiab siv cov txheej txheem tswj impregnation los ua kom cov neeg kho tshuab kev co. Lub suab nrov poob qis dua 25dB(A)- tsis hnov tsw hauv qhov chaw kho mob. Cov ntsiab lus tseem ceeb: acoustic suab nrov feem ntau yog ib qho kab ke - theem cov tsos mob, tsis yog ib qho teeb meem xwb.
Overheating: Thaum "sov" dhau los ua "kub dhau"
Cov teeb meem cua sov yog qhov feem ntau yog vim li cas peb tau txais daim teb - rov qab cov qauv. Peb lub hlis dhau los, cov chaw tsim khoom lag luam IoT qhov rooj xa peb cov tshuab hloov pauv uas tau khiav 30℃kub dua hauv kev sib dhos zaum kawg tshaj li hauv peb qhov kev sim kuaj. Tus neeg ua txhaum? Tsis zoo thermal coupling ntawm lub transformer thiab lub enclosure, ua ke nrog underestimated nyob ze poob nyob rau hauv nruj packed windings.
Peb tau hais txog qhov no los ntawm peb cov kauj ruam ua tau zoo:
1. Poob rov-kev ua yam ntxwv: Ntsuas AC tsis kam ntawm qhov ua haujlwm zaus thiab qhov kub thiab txias, tsis yog DC qhov tseem ceeb xwb.
2. Thermal path optimization: Ntxiv cov khoom siv thermal interface ntawm cov tub ntxhais thiab cov chassis, thiab hloov cov windings los txhim kho airflow.
3. Derating kev taw qhia: Muab meej lub zog derating nkhaus rau siab ambient tej yam kev mob.
Tom qab- hloov kho, qhov kub ntawm hotspot poob los ntawm 22℃, thiab qhov chaw ua haujlwm tsis ua haujlwm tau poob rau zero.
Nkaum Losses: Yog vim li cas Efficiency poob rau hauv Load
Cov hom phiaj ua tau zoo feem ntau zoo li ua tiav ntawm daim ntawv-kom txog rau thaum cov ntaub ntawv thauj khoom tiag tiag qhia txog qhov poob. Peb tsis ntev los no tau pab tus neeg siv khoom uas nws 200kHz flyback converter poob 4% kev ua haujlwm ntawm qhov siab tshaj plaws txawm tias siv hwm ferrite thiab litz hlau. Kev tshawb nrhiav pom ob yam uas tsis tau pom dua: cov tub ntxhais poob tau nce tsis muaj qhov kub thiab txias, thiab winding capacitance ua rau resonant ringing uas dissipated zog li cua sov.
Peb cov txheej txheem optimization tsom mus rau kev ntsuas kev txhim kho:
- Xaiv ib qib ferrite nrog flatter poob vs. kub yam ntxwv
- Kho cov txheej txheej winding suav kom sib npaug ntawm cov xau inductance thiab interwinding capacitance
- Ntxiv ib qho yooj yim snubber circuit tuned kom dampen siab - zaus ringing
Cov txiaj ntsig: kev ua haujlwm tau zoo rov qab los rau lub hom phiaj thoob plaws qhov kev thauj khoom tag nrho, tsis muaj cov nqi nce ntxiv.
Peb Txoj Kev Ua Tau Zoo ntawm Wuxi Huipu Electronics
Thaum cov neeg siv khoom coj peb cov kev sib tw transformer, peb tsis pib nrog kev xav. Peb thov cov qauv ua haujlwm tiag tiag, cov duab thermal, thiab cov qauv tsis ua haujlwm thaum muaj. Tom qab ntawd peb:
1. Rov tsim qhov teeb meem hauv peb lub chaw kuaj mob raws li kev tswj hwm
2. Cais seb lub hauv paus yog electromagnetic, thermal, lossis mechanical
3. Tus qauv tsom cov kev daws teeb meem nrog nrawm - tig rov ua dua
4. Siv tau cov kev txhim kho nyob rau hauv tiag tiag load / kab / kub ces kaum
Kab hauv qab
Suab nrov, cua sov, thiab poob hauv siab - zaus transformers tsis tshua muaj kev daws teeb meem los ntawm ib qho kev sib pauv. Lawv xav tau qhov system- paub debugging thiab rov ua kom zoo dua qub. Yog tias koj tab tom ntsib cov teeb meem no hauv koj tus qauv tsim, qhia koj cov kev ua haujlwm tshwj xeeb nrog peb. Ntawm Wuxi Huipu Electronics, peb tsis muab cov kev kho dav dav-peb cov kev daws teeb meem raws li cov ntaub ntawv ntsuas thiab teb- cov txheej txheem pov thawj. Vim hais tias hauv hluav taws xob hluav taws xob, kev ntseeg siab tsis yog tsim los ntawm qhov kawg - nws tau tsim los ntawm thawj tus qauv.