LED Hloov Cov Hluav Taws Xob Tube: 8 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:31

Hauv cov lus qhia no, kuv yuav sim thiab piav qhia txhua yam ntawm cov kauj ruam uas yuav tsum tau los tsim lub raj hloov roj fluorescent. Cov lus qhia no tau muab ntxiv raws li cov lus qhia, koj tuaj yeem hloov yuav luag txhua yam hauv no kom haum rau koj cov kev xav tau. Lub teeb kuv tsim muaj 87 LEDs, thiab phau ntawv qhia no qhia rau ntau tus. Cov lus qhia no muaj cov ntaub ntawv hais txog yuav tsim lub teeb li cas, tab sis muaj ntau cov ntaub ntawv hais txog yuav ua li cas thiaj ua haujlwm tau suav nrog ntawm no. Tus nqi kwv yees yog $ 25.00 toj ib lub teeb. Yog koj xav tau cov ntaub ntawv ntau dua li cov lus qhia no tuaj yeem muab, tshawb xyuas lub vev xaib rau qhov project no. Thaum kuv ua tiav txoj haujlwm no, kuv txaus siab heev nrog cov txiaj ntsig. Lub teeb tsim los ntawm 87 LEDs yog siv tau heev. Koj tuaj yeem pom cov duab ci ci yog tias koj txaus siab ntawm lub vev xaib saum toj no. Qhov zoo tshaj plaws txog txoj haujlwm no yog txuag hluav taws xob. Lub 87 LED teeb siv tsuas yog 8.4 watts! (0.7 amps @ 12VDC) Txoj haujlwm no tau pom ntawm Intel International Science thiab Engineering Fair (IISEF) thiab Bay Area Science thiab Engineering Fair (BASEF). Pab peb tawm thiab digg zaj dab neeg no!

Kauj Ruam 1: Cov Ntaub Ntawv Yuav Tsum Tau

Koj yuav xav tau cov khoom siv rau txoj haujlwm no. T12 Fluorescent Tube Protector48 "x 1.5" x 0.25 "Plexiglass87 Super Bright White LEDs29 2.7 ohm 1/4 watt Resistors2.5m 18 AWG Bare Copper Wire20cm 14 AWG Bare Copper WireSolder/FluxLM334TIP32CZTX9481k ohm 1 /4 watt Resistor100 ohm 1/4 watt Resistor0.2 microfarad Ceramic CapacitorSuggested Suppliers: Rau cov LEDs, yog tias koj tab tom tsim koj thawj buib, Kuv pom zoo LED Shoppe. Lawv muaj kev cog lus qab zib ntawm LEDs. Qhov ua tau zoo tshaj plaws lossis tsis ntev los no. Rau cov tooj liab liab liab, 18 AWG tuaj yeem los ntawm cov khoom qub ntawm RG6 thiab 14 AWG tuaj yeem los ntawm Romex Lub Tsev Hluav Taws Xob. Lub raj tiv thaiv los ntawm ntau lub khw muag khoom kho vajtse. xaj los ntawm Digikey lossis Mouser

Kauj ruam 2: Txiav thiab Kos

Lub raj roj fluorescent txheem yog kwv yees li 48 ntiv tes ntev thiab 1.5 nti dav (T12 = 12 * 1/8 nti dav). Nqa koj daim ntawv plexi-iav thiab txiav ib daim uas yog 1.5 nti dav los ntawm 44 ntiv tes ntev. 4 ntiv tes yog sab laug hauv lub raj rau tus tswj hwm tam sim no thiab thaiv qhov kawg. Qhov no yog qhov ua tau zoo tshaj plaws ntawm lub rooj pom thaum hnav txhua yam khoom siv nyab xeeb tsim nyog. Yog tias koj tsis nkag mus rau lub rooj pom, txiav txim siab siv rab riam yas laminate ntsuas koj. Koj yuav xav tau kho cov kauj ruam no me ntsis kom haum cov cuab yeej uas koj muaj rau koj. Txhawm rau kos lub ntsej muag ntawm iav, kab plexi-iav tau muab qhwv rau ntawm phab ntsa qhuav "T" raws li qhia hauv qab no. Tom qab ntawd siv rab riam siv hluav taws xob thiab cov phiaj xwm dav dav, cov cim tau tsim. Cov phab ntsa qhuav "T" siv muaj feem me me ntiv tes cim rau nws, yog li lawv tau siv los ua cov lus qhia txog qhov tsim cov cim. Thawj kauj ruam hauv kev khij lub khob yog hla hla qhov luv tshaj plaws ntawm cov yas, kos rau ntawm ib ntus tsis tu ncua. Tom qab ntawd cov cim tau tsim qhov ntev. Cov cim qhov ntev thib ob no tuaj yeem raug rho tawm yog tias siv lub tsheb ntxiv hauv cov kauj ruam tom ntej yog tias koj xav ua kom koj cov yas tsis muaj cim raws li qhov ua tau. Cov khoom kawg yog qhia hauv qab no. Cov kauj ruam no yog ntau dua ntawm cov lus qhia dav dav. Koj cov txheej txheem yuav luag sib txawv. Yog tias koj tab tom kos lub qhov rau 87 LEDs, koj yuav tsim 29 kab. Qhov no ua haujlwm kwv yees li 1 3/8 ntiv tes ntawm pab pawg yog tias pib 1 1/2 ntiv tes los ntawm qhov kawg.

Kauj ruam 3: Laum

Cov txheej txheem no yog ua tau zoo tshaj plaws nrog lub laum xovxwm. Yog tias koj tab tom tsim 87 lub teeb LED zoo li qhov tsim, nws yuav siv sijhawm kwv yees li 20 feeb los laum txhua qhov. Lob ib qho ntawm cov ntoo ntoo thiab kaw nws mus rau koj cov xovxwm laum theem. Teem nws kom yog xwmfab rau theem laum xovxwm, thiab qhov raug kom raug kom ntseeg tau tias txhua qhov ntawm qhov drilled poob hauv tib lub dav hlau thiab ntawm cov qhab nias. Qhov zoo tshaj qhov me ntsis siv me me yog 3/16 ntiv tes. Qhov loj me me me dua qhov xav tau tab sis tso cai rau LEDs teeb tsa yam tsis muaj kua nplaum. Nov yog qhov uas koj tuaj yeem tshem tawm cov qhab nia ntsuas qhov ntev los ntawm kev ua kom lub jig raug kaw hauv qhov chaw raug.

Kauj Ruam 4: Mount LEDs

Nws yog lub sijhawm tam sim no los teeb LEDs. Lob koj lub hnab ntawm LEDs, thiab ntxig peb rau hauv kab. Xyuas kom meej tias qhov polarity raug khaws cia tas li. Txhua qhov zoo (sab ntev) yuav tsum nyob ib sab ntawm lub plexi iav. Tom ntej no siv rab rab qhov ntswg, khoov txoj hauv kev ua plaub fab raws li qhia hauv daim duab hauv qab no. Tom ntej no, muab cov hmoov txhuas ua ke. Rov ua cov txheej txheem no rau lwm qhov kov. Qhov ua tau zoo txuas txuas yuav tsum txaus los tuav cov LEDs nyob rau hauv qhov chaw. Txiav tawm ib qho txhuas dhau, tab sis tawm lub ntsiab (+) thiab (-) ntev li muaj nyob hauv daim duab hauv qab no.

Kauj Ruam 5: Ntxiv Cov Hluav Taws Xob thiab Cov Hluav Taws Xob

Tom ntej no, lob koj lub hnab ntawm 2.7 ohm 1/4 watt resistors. Txiav ib sab ntawm tus tiv thaiv mus rau 1/4 "thiab txiav (() sab ntawm LED triplet mus rau 1/4". Muab ob txoj hauv kev luv ua ke ua ke. Rov ua dua kom txog rau thaum tag nrho cov LEDs triplets muaj lub zog tiv thaiv. Yog vim li cas qhov resistor no yog 2.7 ohms yog vim qhov kev tswj hwm tam sim no. LM334 (cov khoom tseem ceeb hauv tus tswj hwm tam sim no) muaj qhov ntsuas hluav taws xob ntawm 64 mV. Ib qho yooj yim ohm txoj cai laij lej tuaj yeem txiav txim siab tus nqi tiv thaiv no. 2.7 ohms ua kom ntseeg tau tias txhua lub LED tau txais 23.5 mA. Tawm kwv yees li 4 ntiv tes ntawm cov xaim ntxiv ntawm txhua qhov kawg los ua haujlwm nrog qhov kawg. Piv txwv tias koj tab tom pib nrog txoj kev tsheb nqaj hlau zoo, tuav tooj liab tooj liab tiv thaiv cov hlau lead tsuas yog me ntsis saum toj ntawm qhov tiaj tiaj. Qhov chaw tiaj tus no yog qhov "ceeb toom" me me uas siv hauv qab nws tuaj yeem ua rau LED puas, yog li sim thiab nyob saum nws. Tam sim no tias tooj liab tau tuav tawm tsam qhov chaw no, quav cov hlau lead hla cov tooj liab hlau thiab cov laug. Yog tias koj tab tom thawb 87 tus qauv LED, rov ua cov txheej txheem no 29 zaug kom txog rau thaum tag nrho cov LED triplets muaj kev khi rau txoj kab tsheb ciav hlau. Tom qab ntawd rov ua cov txheej txheem no rau cov resistors. Cov neeg tawm tsam tsis muaj "cim kev nyab xeeb", yog li sim thiab nyob twj ywm yam tsawg 1/4 nti ntawm tus tiv thaiv thaum siv tshuaj txhuam. Koj yuav pom lub kaum sab xis 10 degree ntawm LEDs hauv ntu ntu no. Qhov no yuav yog qhov kev tsim qauv zoo tshaj plaws uas tuaj yeem ua rau lub teeb siv tau yam tsis muaj lub diffuser. Txawm li cas los xij, lub kaum sab xis no tsis yog qhov xav tau. Nws nyuaj rau laum cov ces kaum raug nyob rau hauv plexi-iav. Hauv qhov muag teev uas tau tsim, lub kaum sab xis tau tso tseg thiab lub qhov tsuas yog siv ncaj ncaj los ntawm.

Kauj Ruam 6: Tsim Tus Pin-Pin Txuas

Bi-Pin Connector yog hom sib txuas uas nquag siv hauv cov teeb roj fluorescent. Qhov ob-pins feem ntau siv muaj 12.5mm nruab nrab ntawm ob txoj hlua tawv. Txhawm rau tsim cov kab sib txuas no, nqa ib daim ntoo seem thiab laum ob qhov kwv yees li 12.5mm sib nrug. Nws pab siv lub laum xovxwm thiab lub caliper digital, tab sis nws tuaj yeem ua tiav nrog tus pas ntsuas thiab tes siv tes. Qhov tob ntawm cov qhov no tsis tseem ceeb, ua rau lawv tsawg kawg 1/2 ntiv tes tob. Cov qhov yuav tsum yog 1/16 ntiv tes hauv kab taub. Txiav ob 5 cm daim ntawm 14 AWG liab qab tooj liab hlau. Ntxig ob daim rau hauv qhov drilled qhov. Hlais qhov kawg ntawm lub raj tiv thaiv hla ob lub xov tooj tam sim no tau tsau rau hauv cov ntoo ntoo. Twist ob txoj hlua xoob xaim ua ke kom ntseeg tau tias lwm qhov kawg nyob hauv seem ntoo. Npaj qee qhov kub-txias melting yas. Qhov no feem ntau yog ua los ntawm kev yaug qee cov dej thiab nchuav cov granules rau hauv. Ncuav cov yas yaj rau hauv lub hau kawg kom paub tseeb tias yas yog tsawg kawg 3/8 ntiv tes sib sib zog nqus thiab muab faib sib npaug thoob lub hau. Cia lub thooj kom txias thiab thaum cov yas txias tag thiab tawv, tshem nws tawm ntawm cov ntoo. Txiav ob lub xov hlau tawm ntawm lub hau kawg kom kwv yees li 3/8 ntiv tes. Tam sim no koj yuav tsum muaj qhov sib txuas sib txuas ob tus pin uas tuaj yeem xaub mus rau qhov kawg ntawm lub raj tiv thaiv uas tsis muaj kev siv zog hlo li. Rov ua cov txheej txheem no los tsim lwm qhov kawg. Thaum koj muaj ob qhov ua tiav, kos ib qho ua qhov zoo thiab lwm qhov tsis zoo siv tus cim.

Kauj Ruam 7: Tsim Tus Tswj Tam Sim No thiab Bi-Pin Txuas Txuas

Tsim tus tswj hwm tam sim no raws li cov txheej txheem qhia hauv qab no. Koj tuaj yeem tsim PCB daim duab lossis tsim nws ntawm qee qhov kev sib tham. Tam sim no cov phaj mounting LED yuav tsum muaj cov LEDs, cov neeg tawm tsam thiab cov ntsia hluav taws xob. Xaub lub phaj teeb nrog txhua yam ntawm nws cov khoom siv rau hauv lub raj tiv thaiv kom pom tseeb. Muaj peb lub davhlau ya nyob twg ntawm tus tswj hwm tam sim no: (+), (-) thiab tus kais. Txuas qhov xoob xoob ntawm ib sab ntawm txoj kab hluav taws xob mus rau (+) thiab (-) qhov ntawm PCB kom ntseeg tau tias qhov tseeb yog qhov tseeb. Nqa ib daim hlau luv ntawm txhua qhov ntsuas thiab txuas nws mus rau thawj LED triplet ntawm tus tiv thaiv thiab (-) sab ntawm LED. Txuas lwm qhov kawg ntawm cov xaim no mus rau lub kais ntawm PCB rau tus tswj hwm tam sim no. Nov yog "kais" siv los tswj hwm tam sim no. Cov kauj ruam tom ntej yog siv ib daim luv ntawm 18 AWG xaim thiab txuas qhov zoo ob-tus pin txuas rau kab ntawv nkag. Siv qhov tsis zoo ntawm tus pin txuas thiab txuas nws mus rau txoj kab hluav taws xob tsis zoo ntawm qhov kawg ntawm lub raj. Qhov no yog txoj kev tsheb nqaj hlau nrog cov resistors tau teeb tsa. Txiav tag nrho cov xov hlau kom luv li sai tau. Kauj ruam kawg hauv kev tsim lub teeb LED yog ua kom swb txhua yam rau hauv lub raj thiab xaub qhov txuas ob-tus pin mus rau qhov kawg. Ua kom ntseeg tau tias lawv tau koom ua ke nrog ib leeg. Nws tsis yog qhov yuav tsum tau siv ob tus pin txuas. Koj tuaj yeem xaim xov tooj yooj yim DC lub qhov (socket). mus rau + thiab tsis zoo ntawm lub Circuit Court. (Ib qho tshiab, pom meej dua schematic yuav los sai sai no.)

Kauj Ruam 8: Kev hloov pauv: DC Qhov Ncauj Tsis Siv Bi-Pin

Koj tuaj yeem siv DC lub qhov (socket) yooj yim dua li txuas ob tus pin. Cov duab hauv qab no piav qhia nws zoo dua li cov lus tuaj yeem ua tau. Cias txuas qhov zoo thiab qhov tsis zoo txuas hauv Circuit Court rau koj lub thoob ntsaws.