Scheme ntawm photorelay thiab cov cai sib txuas

Cov txheej txheem:

Scheme ntawm photorelay thiab cov cai sib txuas
Scheme ntawm photorelay thiab cov cai sib txuas

Video: Scheme ntawm photorelay thiab cov cai sib txuas

Video: Scheme ntawm photorelay thiab cov cai sib txuas
Video: ib sim hawj kev hlub tag lawm tiag tiag 2020 2024, Plaub Hlis Ntuj
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Kev siv lub teeb pom kev zoo hauv chav tsev, hauv tsev lossis ntawm txoj kev yog ua tiav los ntawm kev siv photorelay. Thaum teeb tsa kom raug, nws yuav qhib lub teeb thaum nws tsaus ntuj thiab tua nws thaum nruab hnub. Cov khoom siv niaj hnub no muaj qhov chaw uas koj tuaj yeem teeb tsa cov lus teb nyob ntawm qhov teeb pom kev zoo. Lawv yog ib feem tseem ceeb ntawm "smart home" system, uas yog ib feem tseem ceeb ntawm lub luag haujlwm ntawm cov tswv. Diam duab relay Circuit Court, ua ntej ntawm tag nrho cov, muaj ib tug resistor uas hloov kuj nyob rau hauv qhov kev txiav txim ntawm lub teeb. Nws yog ib qho yooj yim los dhos thiab kho los ntawm tes.

photorelay Circuit Court
photorelay Circuit Court

Txoj Cai Ua Haujlwm

Txoj kev rau kev txuas lub photorelay rau txoj kev teeb pom kev zoo suav nrog lub sensor, amplifier thiab actuator. Photoconductor PR1 nyob rau hauv qhov kev txiav txim ntawm lub teeb hloov tsis kam. Qhov no hloov tus nqi hluav taws xob tam sim no dhau los ntawm nws. Lub teeb liab yog amplified los ntawm composite transistor VT1, VT2 (Darlington circuit), thiab los ntawm nws mus rau lub actuator, uas yog lub electromagnetic relay K1.

Nyob hauv qhov tsaus ntujphotocell yog ob peb mOhm. Nyob rau hauv qhov kev txiav txim ntawm lub teeb, nws raug txo mus rau ob peb kOhm. Nyob rau tib lub sij hawm, transistors VT1, VT2 qhib, tig rau relay K1, uas tswj lub load Circuit Court los ntawm kev tiv tauj K1.1. Diode VD1 tsis dhau tus kheej-induction tam sim no thaum lub relay raug kaw.

Txawm hais tias nws qhov yooj yim, lub photorelay Circuit Court yog rhiab heev. Txhawm rau teeb tsa rau qib uas xav tau, siv tus resistor R1.

Cov khoom siv hluav taws xob raug xaiv raws li qhov tsis muaj ntawm cov relay thiab yog 5-15 V. Lub winding tam sim no tsis pub tshaj 50 mA. Yog tias koj xav tau nce nws, koj tuaj yeem siv cov transistors muaj zog dua thiab cov relays. Lub rhiab heev ntawm daim duab relay nce nrog nce voltage.

Hloov lub photoresistor, koj tuaj yeem nruab ib lub photodiode. Yog tias xav tau ib lub sensor uas muaj qhov xav tau ntau ntxiv, circuits nrog phototransistors yog siv. Lawv txoj kev siv yog pom zoo kom txuag hluav taws xob, txij li qhov tsawg kawg nkaus ntawm kev ua haujlwm ntawm cov cuab yeej siv yog 5 lux, thaum cov khoom nyob ib puag ncig tseem txawv. Qhov chaw pib ntawm 2 lux sib haum mus rau twilight sib sib zog nqus, tom qab uas qhov tsaus ntuj teev nyob rau hauv 10 feeb tom qab.

Nws raug nquahu kom siv lub photorelay txawm tias muaj kev tswj lub teeb pom kev zoo, vim koj tuaj yeem hnov qab kaw lub teeb, thiab lub sensor yuav "kho" ntawm nws tus kheej. Yooj yim rau nruab thiab pheej yig.

Photocell specifications

Kev xaiv ntawm photorelay yog txiav txim siab los ntawm cov hauv qab no:

  • photocell rhiab heev;
  • khoom siv hluav taws xob;
  • switched power;
  • ib puag ncig sab nraud.

Kev xavyog tus cwj pwm raws li qhov piv ntawm qhov tshwm sim photocurrent rau qhov loj ntawm lub teeb sab nraud thiab ntsuas hauv µA / lm. Nws nyob ntawm qhov zaus (spectral) thiab lub teeb siv (integral). Txhawm rau tswj cov teeb pom kev zoo hauv lub neej txhua hnub, tus yam ntxwv kawg yog qhov tseem ceeb, nyob ntawm tag nrho cov luminous flux.

Cov ntsuas hluav taws xob tuaj yeem pom ntawm cov khoom siv lossis hauv cov ntaub ntawv nrog. Cov khoom siv txawv teb chaws tuaj yeem muaj cov qauv hluav taws xob sib txawv.

Lub thauj khoom ntawm nws cov neeg sib cuag nyob ntawm lub zog ntawm lub teeb uas lub photorelay txuas nrog. Teeb pom kev zoo photorelay circuits tuaj yeem muab kev hloov pauv ntawm lub teeb los ntawm kev sib cuag sensor lossis los ntawm kev pib thaum lub load siab.

teeb pom kev yees duab relay circuits
teeb pom kev yees duab relay circuits

Sab nraum zoov, lub twilight hloov tau muab tso rau hauv lub npog pob tshab. Nws tiv thaiv los ntawm noo noo thiab nag lossis daus. Thaum ua hauj lwm hauv lub caij txias, cua sov yog siv.

Hoobkas ua qauv

Thaum ntxov, lub photorelay circuit tau sib sau ua ke ntawm tes. Tam sim no qhov no tsis tsim nyog, vim tias cov khoom siv tau pheej yig dua, thiab kev ua haujlwm tau nthuav dav. Lawv siv tsis yog rau sab nraud lossis sab hauv teeb pom kev zoo, tab sis kuj tseem siv rau kev tswj cov nroj tsuag dej, cua tshuab, thiab lwm yam.

1. Photorelay FR-2

Cov qauv Prefabricated tau siv dav hauv cov khoom siv hluav taws xob, piv txwv li, tswj kev teeb pom kev zoo. Koj tuaj yeem pom cov teeb ci ntsa iab thaum nruab hnub uas koj tsis nco qab tua. Nrog cov duab sensors tsis xav tau kev tswj teeb pom kev zoo.

Lub fr-2 photorelay Circuit Court ntawm kev tsim khoom yog siv rau kev tswj tsis siv neeg ntawm txoj kev teeb pom kev zoo. Ntawm no, ib yam nkaus, lub tshuab hloov pauv yog relay K1. Lub photoresistor FSK-G1 nrog resistors R4 thiab R5 txuas nrog lub hauv paus ntawm transistor VT1.

photorelay circuit fr
photorelay circuit fr

Fais fab yog muab los ntawm ib theem 220 V network. Thaum lub teeb pom kev tsawg, qhov tsis kam ntawm FSK-G1 yog qhov loj thiab lub teeb liab raws li VT1 tsis txaus los qhib nws. Raws li, transistor VT2 kuj raug kaw. Relay K1 muaj zog thiab nws cov neeg ua haujlwm raug kaw, ua kom lub teeb rau.

Thaum lub teeb pom kev nce mus rau qhov pib ua haujlwm, qhov kev tiv thaiv ntawm photoresistor txo qis thiab lub transistor hloov qhib, tom qab uas relay K1 tig tawm, qhib lub teeb ci hluav taws xob.

2. Hom photorelays

Kev xaiv ntawm cov qauv yog qhov loj txaus kom tuaj yeem xaiv qhov yog:

  • nrog cov chaw taws teeb tswj nyob sab nraum lub cev ntawm cov khoom, uas 2 xov hlau txuas;
  • lux 2 - ib qho khoom siv nrog kev ntseeg siab thiab qib zoo;
  • photorelay nrog 12 V muab thiab thauj khoom tsis siab tshaj 10 A;
  • DIN-rail mounted timer module;
  • IEC cov khoom siv ntawm cov chaw tsim khoom hauv tsev nrog kev ua haujlwm zoo thiab ua haujlwm;
  • AZ 112 - siab rhiab heev tshuab;
  • ABB, LPX yog cov tuam txhab txhim khu kev qha ntawm European cov khoom siv zoo.

Txoj kev txuas lub photorelay

Ua ntej yuav ib lub sensor, nws yog ib qho tsim nyog los xam lub hwj chim siv los ntawm lub teeb thiab coj nws nrog cov npoo ntawm 20%. Nrog rau kev thauj khoom tseem ceeb, txoj kev yees duab relay Circuit Court muab rau kev teeb tsa ntxiv ntawm lub tshuab hluav taws xob hluav taws xob, lub winding uas yuav tsum tau hloov los ntawm kev sib cuag ntawm cov duab relay, thiab lub load yuav tsum tau hloov nrog lub zog tiv tauj.

txoj kev teeb hloov daim duab
txoj kev teeb hloov daim duab

Rau tsev, txoj kev no tsis tshua siv.

Ua ntej kev teeb tsa, qhov ntsuas hluav taws xob tseem ceeb ~ 220 V raug kuaj xyuas. Lub photosensor tau nruab rau hauv txoj kev uas lub teeb ntawm lub teeb nyem tsis poob rau nws.

Cov cuab yeej siv terminals rau txuas cov xov hlau, uas ua rau kev txhim kho yooj yim dua. Yog tias lawv ploj lawm, siv lub thawv sib txuas.

Vim yog siv cov microprocessors, photorelay txuas circuit nrog lwm cov ntsiab lus tau txais cov haujlwm tshiab. Lub timer thiab lub suab sensor tau raug ntxiv rau cov txheej txheem ntawm kev ua.

photorelay txuas daim duab
photorelay txuas daim duab

Nws yog qhov yooj yim thaum lub teeb cia li tig rau thaum tus neeg hla kev tsaws lossis taug kev ntawm lub vaj. Ntxiv mus, kev ua haujlwm tsuas yog tshwm sim hauv qhov tsaus ntuj. Vim yog siv lub timer, lub photorelay tsis hnov mob rau lub taub hau ntawm lub tsheb dhau.

Lub tswv yim yooj yim tshaj plaws rau kev txuas lub sijhawm nrog lub suab sensor yog serial. Rau cov qauv kim, tshwj xeeb programmable circuits tau tsim los rau hauv tus account ntau yam kev ua haujlwm.

Yees duab relay rau txoj kev teeb pom kev zoo

Txuas txuas lub photorelay, lub voj voog siv rau nws lub cev. Nws tuaj yeem pom hauv cov ntaub ntawv ntsuas.

photorelay Circuit Court
photorelay Circuit Court

Los ntawmpeb xaim tawm ntawm lub cuab yeej.

  1. Neutral conductor - ib qho rau cov teeb thiab photorelay (liab).
  2. Phase - txuas nrog lub tswv yim ntawm lub cuab yeej (xim av).
  3. Muaj peev xwm tus neeg xyuas pib muab qhov hluav taws xob los ntawm photorelay rau cov teeb (xiav).

Lub cuab yeej ua haujlwm ntawm lub hauv paus ntsiab lus ntawm theem cuam tshuam lossis suav nrog. Xim coding yuav txawv ntawm cov chaw tsim khoom rau cov chaw tsim khoom. Yog tias muaj tus neeg xyuas pib hauv av hauv lub network, nws tsis txuas nrog lub cuab yeej.

Nyob rau hauv cov qauv nrog lub sensor built-in, uas yog nyob rau hauv cov ntaub ntawv pob tshab, lub lag luam ntawm txoj kev teeb pom kev zoo yog autonomous. Nws tsuas yog yuav tsum tau siv zog xwb.

Cov kev xaiv nrog kev tshem tawm ntawm lub sensor yog siv thaum lub tshuab hluav taws xob txhaws ntawm photorelay tau yooj yim muab tso rau hauv cov tswj vaj huam sib luag nrog lwm cov khoom siv. Tom qab ntawd tsis tas yuav tsum muaj kev teeb tsa ib leeg, rub cov hlua hluav taws xob thiab kev saib xyuas ntawm qhov siab. Lub tshuab hluav taws xob tau muab tso rau hauv chav tsev, thiab lub sensor raug tshem tawm.

Txoj kev ntawm photorelay rau txoj kev teeb pom kev zoo: daim duab

Thaum txhim kho daim duab xa tawm sab nraum zoov, muaj qee yam los xav txog.

  1. Muaj peev xwm ntawm ~ 220 V muab qhov hluav taws xob thiab sib txuam ntawm kev sib cuag thiab lub zog thauj khoom.
  2. Tsis txhob nruab cov khoom siv ze ntawm cov khoom siv hluav taws xob thiab hauv qhov chaw muaj kev kub ntxhov.
  3. Lub hauv paus ntawm lub cuab yeej muab tso rau hauv qab.
  4. Swinging khoom xws li tsob ntoo yuav tsum tsis txhob muab tso rau pem hauv ntej ntawm lub sensor.

Kev xaim yog ua tiav los ntawm lub thawv sib txuas sab nraum zoov. Nws yog kho ntawm ib sab ntawm daim duab relay.

photorelay rau txoj kev teeb pom kev zoo Circuit Court
photorelay rau txoj kev teeb pom kev zoo Circuit Court

Select photocell

  1. Lub peev xwm los kho cov lus teb pib tso cai rau koj los kho qhov rhiab heev ntawm lub sensor nyob ntawm lub sijhawm xyoo lossis huab cua huab cua. Qhov tshwm sim yog kev txuag hluav taws xob.
  2. Tsawg kawg yuav tsum ua haujlwm thaum mounting ib daim duab relay nrog lub hauv paus sensing. Nws tsis tas yuav muaj kev txawj tshwj xeeb.
  3. Lub timer relay yog programmed zoo rau nws cov kev xav tau thiab kev ua haujlwm hauv hom teeb tsa. Koj tuaj yeem teem lub tshuab kom tua thaum hmo ntuj. Qhov taw qhia ntawm lub cev ntawm lub cuab yeej thiab lub khawm khawm tswj ua kom yooj yim rau kev teeb tsa.

Zaj lus

Kev siv lub photorelay tso cai rau koj tswj tau lub sijhawm hloov ntawm lub teeb. Tam sim no tsis muaj kev xav tau rau kev ua haujlwm ntawm lub teeb ci. Lub photorelay Circuit Court yam tsis muaj kev cuam tshuam tib neeg thaum yav tsaus ntuj tig rau lub teeb ntawm txoj kev thiab tig tawm thaum sawv ntxov. Cov cuab yeej tuaj yeem tswj tau lub teeb pom kev zoo, uas ua rau nws lub neej thiab ua haujlwm yooj yim dua.

Pom zoo: