Dab tsi ua rau tam sim no los ntawm kev ntws los ntawm koj lub cev muaj zog Windings?
Hauv txhua lub tshuab hluav taws xob, tooj liab windings nqa tam sim no. Lawv zaum hauv cov qhov rooj steel. Steel ua hluav taws xob. Tooj liab ua hluav taws xob. Yog tias lawv kov, tam sim no xau. Lub cev muaj zog luv. Kev ua haujlwm poob qis. Thaum kawg, lub cev muaj zog tsis ua haujlwm.
Qhov tsuas yog qhov sawv ntawm cov tooj liab thiab cov hlau yog ib daim ntawv nyias ntawm cov khoom hu uahluav taws xob rwb thaiv tsev ntawv.
Nws tsis zoo li ntau. Ib feem ntawm ib millimeter tuab. Txiav rau hauv cov duab meej. Txav mus rau hauv lub qhov ua ntej lub windings mus rau hauv. Tab sis tsis muaj nws, lub cev muaj zog tsis ua hauj lwm.
Daim ntawv rwb thaiv tsev ua tau dab tsi
Lub stator core yog ua los ntawm stacked steel laminations. Cov slots yog punched rau hauv lawv. Tus kws ua haujlwm ntxig ib daim ntawv rwb thaiv tsev rau hauv txhua qhov, folded rau kab phab ntsa. Tom qab ntawd cov windings nkag mus rau hauv. Ces lub qhov wedge kaw qhov qhib.
Daim ntawv muaj peb txoj haujlwm. Ua ntej, hluav taws xob rwb thaiv tsev - nres tam sim no los ntawm kev dhia ntawm tooj liab mus rau cov hlau. Thib ob, kev tiv thaiv txhua yam - cushion lub windings tiv thaiv cov npoo tawv ntawm cov hlau laminations. Thib peb, kev tswj xyuas thermal - qee cov qib pab ua kom sov kom deb ntawm cov windings.
Yog tias daim ntawv ua tsis tiav ntawm ib qho ntawm cov no, lub cev muaj zog tsis ua haujlwm.
Cov Tsev Neeg Khoom
Tsis yog txhua daim ntawv rwb thaiv tsev yog tib yam. Cov motors sib txawv xav tau cov khoom sib txawv. Qhov kev xaiv nyob ntawm qhov kub thiab txias, voltage, mechanical stress, thiab nqi.
Cov lus hauv qab no qhia txog hom kev siv ntau tshaj plaws hauv kev tsim lub cev muaj zog niaj hnub no.
| Khoom siv code | Kev tsim kho | Chav ntsuas kub | Hom tuab | Zoo tshaj rau |
|---|---|---|---|---|
| DMD | Polyester zaj duab xis + polyester nonwoven ob sab | Chav Kawm F (155 ° C) | 0.15-0.35 hli | General motors, cov cuab yeej hluav taws xob, khoom siv hauv tsev |
| NMN | Polyester zaj duab xis + polyamide nonwoven ob sab | Chav Kawm F (155 ° C) | 0.20-0.40 hli | Ntau dua txhua yam muaj zog, automotive motors |
| NHN | Polyimide zaj duab xis + polyamide nonwoven ob sab | Chav Kawm H (180 ° C) | 0.20-0.35 hli | High-temperature motors, EV traction motors |
| Aramid ntawv | 100% aramid fibers (Nomex hom) | Chav Kawm H (180 ° C) rau Chav Kawm C (220 ° C) | 0.18-0.50 hli | Muaj kev ntseeg siab, transformers, hnyav-lub cev muaj zog |
| Polyimide zaj duab xis | Ib txheej polyimide (Kapton hom) | Chav Kawm H (180 ° C) rau Chav Kawm C (220 ° C) | 0.05-0.15 hli | Nyias-wall applications, aerospace |
DMD yog tus neeg ua haujlwm. Nws npog feem ntau cov qauv motors ntawm tus nqi tsim nyog. NMN ntxiv mechanical toughness. NHN ntxiv cov cua sov. Aramid ntawv ntxiv ob qho tib si ntxiv rau lub zog dielectric zog. Polyimide zaj duab xis yog rau qhov chaw nruj.
Nkag siab cov chav kawm kub
Txhua yam khoom siv rwb thaiv tsev yog ntsuas qhov ntsuas kub. Qhov no tsis yog kev lag luam. Nws yog ib qho kev sim txwv.
| Chav kawm | Ua haujlwm kub siab tshaj plaws | Tej kev siv |
|---|---|---|
| Chav Kawm A | 105 ° C | Cov qauv qub qub, cov tshuab ua haujlwm qis |
| Chav Kawm E | 120 ° C | Me kiv cua, twj tso kua mis |
| Chav B | 130 ° C | General hom phiaj motors |
| Chav F | 155 ° C | Cov cuab yeej fais fab, cov tshuab muaj zog |
| Chav Kawm H | 180 ° C | EV motors, servo motors |
| Chav Kawm C | 220 ° C | Kev ua haujlwm siab, aerospace, kev ua haujlwm siab heev |
Xaiv cov chav kawm tsis raug yog ib qho yuam kev. Yog hais tias lub cev muaj zog khiav ntawm 140 ° C tas mus li, Chav B (130 ° C) yuav poob. Chav F (155 ° C) yog qhov tsawg kawg nkaus kev xaiv.
Tab sis nco ntsoov: qhov ntsuas kub yog siv rau kev ua haujlwm tas mus li. Peak kub tej zaum yuav siab dua. Cov engineers zoo ntxiv cov paj. Lub cev muaj zog uas khiav ntawm 140 ° C txuas ntxiv yuav tsum tau txais Class H rwb thaiv tsev, tsis yog Class F xwb.
Cov Ntsiab Lus Tseem Ceeb: Daim Ntawv Qhia tshwj xeeb txhais tau li cas
Thaum twgntsuam xyuas daim ntawv rwb thaiv tsev, ob peb technical parameter tseem ceeb. Nov yog qhov lawv txhais li cas.
Thickness.Ntsuas hauv millimeters. Feem ntau yog 0.15mm txog 0.40mm rau cov kab hauv kab. Thicker daim ntawv muab ntau dua dielectric zog thiab zoo dua mechanical tiv thaiv. Cov ntawv nyias nyias tawm ntau chav rau tooj liab, ua kom lub cev muaj zog ceev ceev. Kev sib pauv yog kev txiav txim siab engineering.
Dielectric zog.Ntsuas hauv kilovolts ib millimeter. Qhov no qhia koj tias qhov hluav taws xob ntau npaum li cas ntawm daim ntawv tuaj yeem thaiv ua ntej tawg. Tus nqi raug rau DMD yog 5-8 kV rau ib daim ntawv 0.2mm. Siab dua yog zoo dua, tab sis qhov yuav tsum tau tiag tiag nyob ntawm lub cev muaj zog voltage. Rau 400V EV lub cev muaj zog, 3-5 kV yog txaus. Rau 800V systems, 6-8 kV muaj kev nyab xeeb dua.
Tensile zog.Ntsuas hauv Newtons rau 15mm dav. Qhov no qhia koj ntau npaum li cas rub cov ntawv tuaj yeem siv ua ntej tearing. Qhov tseem ceeb vim tias daim ntawv yog folded thiab muab tso rau ntawm lub tshuab. Cov ntawv tsis muaj kua muag thaum sib dhos. Lub sijhawm poob raws li.
Elongation thaum so.Feem pua ntawm stretch ua ntej tearing. Daim ntawv uas stretches 10-15% yog ntau zam txim thaum folding. Brittle daim ntawv tawg ntawm cov ces kaum ntse.
Ntug tsim kua muag.Ntsuas hauv Newtons. Daim ntawv tau folded. Folds tsim cov ntsiab lus kev ntxhov siab. Yog tias ntug tsim kua muag tsis tshua muaj, daim ntawv sib cais ntawm txoj kab folds thaum muab tso rau.
Ib tus neeg muag khoom zoo muab cov lej no rau ntawm daim ntawv pov thawj khoom. Tus neeg muag khoom tsis zoo hais tias "nws ua tau raws li cov qauv kev lag luam" yam tsis tau muab qhov ntsuas qhov tseeb.
Vim li cas EV Motors txawv
Fais tsheb motors tau hloov cov ntaub ntawv rwb thaiv tsev lag luam. Cov kev cai yog nruj dua.
Kub siab dua.EV motors khiav kub dua li muaj motors. Ua kua txias pab, tab sis hotspots tseem ncav cuag 160-180 ° C. Cov ntaub ntawv H (180 ° C) yog tus qauv. Qee cov tuam txhab lag luam tab tom hloov mus rau Chav C (220 ° C) rau cov qauv tsim tom ntej.
Siab dua voltages.Thaum ntxov EV motors khiav ntawm 300-400V. Cov tshuab tshiab tshiab khiav ntawm 800V. Cov tshuab tuaj yuav khiav ntawm 1200V lossis siab dua. Dielectric zog yuav tsum tau ob npaug. Daim ntawv ua haujlwm rau 400V yuav tsis muaj kev nyab xeeb rau 800V.
Roj raug.Ntau lub EV motors siv roj kom txias thiab lubrication. Daim ntawv rwb thaiv tsev zaum hauv cov roj ntawd. Qee cov ntaub ntawv swell lossis degrade hauv cov roj. Cov ntaub ntawv polyimide ua tau zoo. Polyester cov ntaub ntawv tuaj yeem muaj kev txwv. Nug cov ntaub ntawv ntsuas roj sib xws.
Automation.EV motor ntau lawm kab khiav ntawm kev kub ceev. Daim ntawv yog pub los ntawm yob, txiav, folded, thiab muab tso rau hauv. Cov khoom sib xws tseem ceeb. Thickness variation ntawm ± 0.01mm tuaj yeem ua rau lub tshuab ntxig ntxig.
Peb qhov teeb meem tiag tiag uas tshwm sim ntawm cov kab ntau lawm
Cov khoom siv theoretical yog ib yam. Dab tsi ua tsis ncaj ncees lawm ntawm lub Hoobkas hauv pem teb yog lwm qhov.
Teeb meem ib: ntawv kua muag thaum folding.Lub tshuab folds daim ntawv rau hauv U-zoo li kab rau kab. Yog tias daim ntawv muaj qhov qis qis dua lub zog, nws tawg ntawm txoj kab quav. Txoj kab nres. Tus neeg teb xov tooj clears lub jam. Kev tsim khoom rov pib dua. Qhov no tshwm sim kaum ob zaug ib zaug nrog cov khoom tsis zoo.
Teeb meem ob: daim ntawv qhov ntev hloov nrog cov av noo.Aramid ntawv absorbs noo noo los ntawm huab cua. Nyob rau hauv high humidity, nws expands. Nyob rau hauv tsawg humidity, nws shrinks. Lub tshuab yog calibrated rau ib tug loj. Thaum daim ntawv hloov qhov loj me, lub folded duab hloov. Lub insert ua tsis tiav. Cov neeg muag khoom zoo xa ntawv hauv cov ntawv ntim dej noo. Cov chaw tsim khoom zoo khaws cia hauv cov chav tswj kev nyab xeeb.
Teeb meem peb: adhesive contamination.Qee daim ntawv rwb thaiv tsev muaj cov nplaum nplaum rau ntawm ib sab. Tom qab muab tso rau, tshav kub daim ntawv mus rau lub qhov rooj phab ntsa. Yog hais tias cov nplaum oozes tawm thaum lub sij hawm cia los yog hloov mus, nws sticks rau lub tshuab qhia. Plua plav sau. Alignment drifts. Qhov kev daws teeb meem yog kev tsim khoom huv si thiab cov khoom tso tawm kom raug.
Yuav ua li cas qhia cov ntawv rwb thaiv tsev kom raug
Nov yog qhov piv txwv tiag tiag rau EV lub cev muaj zog traction tsav.
| Parameter | Kev xav tau |
|---|---|
| Khoom siv | NHN los yog aramid ntawv |
| Chav ntsuas kub | Chav H (180 ° C) yam tsawg kawg nkaus |
| Thickness | 0.25mm ± 0.02 hli |
| Dav | Raws li kev kos duab (qhov dav dav + 2x overhang) |
| Dielectric zog | ≥6kV rau 0.25mm thickness |
| Lub zog tensile | ≥150 N / 15mm hauv tshuab kev taw qhia |
| Elongation | ≥10% |
| Roj compatibility | Tsis muaj qhov o lossis delamination tom qab 1000 teev hauv cov kua xa tawm ntawm 120 ° C |
| Ntim | Moisture-proof, humidity indicator suav nrog |
| Daim ntawv pov thawj | UL94 V-0 flammability, RoHS raws |
Xa qhov no mus rau peb tus neeg xa khoom. Sib piv cov ntawv xeem uas lawv muab. Nug txog kev hloov pauv - batch rau batch, yob rau yob. Tus neeg muag khoom uas teb nrog cov ntaub ntawv yog tus ntseeg.
Rau nqe lus nug Cov neeg yuav khoom nug
Kuv puas tuaj yeem siv tib daim ntawv rwb thaiv tsev rau tag nrho kuv lub cev muaj zog?
Feem ntau tsis yog. Cov motors sib txawv khiav ntawm qhov sib txawv ntawm qhov kub thiab qhov hluav taws xob. Kev tsim qauv ntawm ib qho khoom siv yooj yim rau cov khoom muag tab sis yuam koj siv cov khoom siv qib siab dua li qhov tsim nyog rau qee lub cav, nce nqi. Los yog koj siv cov khoom siv qis dua thiab pheej hmoo ua tsis tiav. Zoo dua kom tsim nyog ob lossis peb cov ntaub ntawv thiab phim rau cov ntawv thov.
Qhov txawv ntawm NMN thiab NHN yog dab tsi?
Nruab nrab txheej. NMN siv polyester zaj duab xis. NHN siv polyimide zaj duab xis. Polyimide tiv taus kub dua. Rau cov motors khiav qis dua 155 ° C, NMN yog qhov zoo. Rau 155-180 ° C, xaiv NHN. Tus nqi sib txawv yog me ntsis.
Puas yog daim ntawv tuab ib txwm txhais tau tias kev rwb thaiv tsev zoo dua?
Tsis tas li. Lub zog dielectric nce nrog thickness, tab sis txhua yam haum yuav nyuaj. Cov ntawv tuab yuav siv qhov chaw hauv lub qhov. Qhov chaw ntawd tuaj yeem tuav tau tooj liab ntau dua. Motor designers pauv tawm rwb thaiv tsev thickness tiv thaiv tooj liab sau. Cov ntawv nyias nyias tso cai rau tooj liab ntau dua, muaj zog dua, tab sis yuav tsum tau tswj cov txheej txheem zoo dua.
Lub txee lub neej ntawm cov ntawv rwb thaiv tsev yog dab tsi?
Nyob ntawm qhov chaw cia khoom. Nyob rau hauv thawj ntim, huab cua-tswj, aramid ntawv kav ntev xyoo. Polyester-based cov ntaub ntawv yuav degrade sai dua. Cov kev pheej hmoo tseem ceeb yog kev nqus dej noo thiab nplaum nplaum. Yog tias daim ntawv tau khaws cia rau ntau tshaj ob xyoos, sim ib qho qauv ua ntej siv.
Kuv yuav ua li cas thiaj paub yog tias tus neeg muag khoom daim ntawv zoo sib xws?
Nug Cpk cov ntaub ntawv ntawm tuab. Ib Cpk ntawm 1.33 lossis siab dua txhais tau tias cov txheej txheem muaj peev xwm. Kuj nug rau batch-to-batch test reports. Yog tias tus neeg muag khoom tsis tuaj yeem tsim cov khoom no, lawv tsis tswj lawv cov txheej txheem.
Cov ntawv rwb thaiv tsev puas tuaj yeem rov siv dua?
Feem ntau yog cov thermoset los yog kev ua haujlwm siab thermoplastic. Kev rov ua dua tshiab yog qhov nyuaj. Qee cov ntaub ntawv aramid tuaj yeem hloov pauv, tab sis cov txheej txheem tsis muaj dav. Kev lag luam tsom mus rau kev txo cov khib nyiab hauv kev txiav thiab ntxig, tsis yog tom qab cov neeg siv khoom siv rov ua dua tshiab.
Daim ntawv ceeb toom ntawm Compatibility nrog Slot Wedges
Rwb thaiv tsev ntawvkab cov phab ntsa. Lub qhov qhib kaw kaw qhov qhib. Lawv yuav tsum ua haujlwm ua ke.
Lub wedge presses tiv thaiv daim ntawv ntawm lub qhov qhib. Yog tias daim ntawv mos dhau lawm, lub npoo yuav khawb rau hauv nws. Yog tias daim ntawv yog nkig dhau lawm, nws yuav tawg ntawm qhov sib chwv qhov taw tes.
Rau EV motors, ntau tus engineers khub aramid ntawv nrog aramid wedges. Ib yam khoom siv tsev neeg, zoo sib xws thermal expansion thiab mechanical cwj pwm. Rau cov motors dav dav, DMD ntawv nrog iav-fiber wedges yog ib qho pov thawj ua ke.
Thaum txiav txim los ntawm tus neeg muag khoom, qhia ob qho khoom ua ke. Tom qab ntawd tus neeg muag khoom tuaj yeem phim cov khoom siv.
Xa lus nug
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Peb siv cov ncuav qab zib los muab koj cov kev tshawb fawb zoo dua, txheeb xyuas qhov chaw khiav tsheb thiab kho cov ntsiab lus tus kheej. Los ntawm kev siv lub xaib no, koj pom zoo rau peb siv cov ncuav qab zib.
Txoj Cai Tswjfwm Ntiag Tug