Aikace-aikacen na'urorin peltier, na'urorin thermoelectric a cikin masu sarrafa zafin jiki

Aikace-aikacen na'urorin peltier, na'urorin thermoelectric a cikin masu sarrafa zafin jiki

Module ɗin sanyaya na Thermoelectric (peltier element)—wanda aka fi sani da masu sanyaya na thermoelectric (TECs)—sune muhimman abubuwa a cikin tsarin sarrafa zafin jiki mai inganci. Aikinsu yana ƙarƙashin tasirin Peltier: lokacin da wutar lantarki kai tsaye ta ratsa thermocouple da aka samar ta hanyar kayan semiconductor guda biyu daban-daban, zafi yana sha a mahaɗi ɗaya (gefen sanyi) kuma a lokaci guda ana ƙin shi a mahaɗin da ke akasin haka (gefen zafi).

A cikin tsarin kula da zafin jiki da aka haɗa, na'urorin thermoelectric, na'urorin peltier, an haɗa TECs tare da masu sarrafa zafin jiki masu hankali (watau, na'urorin thermostats) don ba da damar daidaita yanayin zafi mai kusurwa biyu, mai aiki, da kuma madauri mai rufewa tare da daidaito na musamman. Ga wani tsari na nazarin ƙa'idodin aikinsu da aiwatarwa a aikace:

1. Babban ƙa'idar aiki: Tsarin kula da zafi mai kusurwa biyu a rufe

Na'urar sanyaya zafi ta Thermoelectric, TEC tana aiki ne kawai a matsayin na'urar canja wurin zafi kuma ba za ta iya tantance ko za ta sanyaya ko za ta yi zafi ba; wannan ikon yanke shawara yana nan gaba ɗaya a cikin mai sarrafa zafin jiki—“sashin sarrafawa na tsakiya” na tsarin. Tare da na'urar firikwensin zafin jiki mai inganci, mai sarrafa yana ci gaba da sa ido kan ainihin zafin jiki kuma yana kwatanta shi da wuraren da mai amfani ya ƙayyade:

• Yanayin sanyaya: Idan zafin da aka auna ya wuce wurin da aka saita a sama, mai sarrafawa yana amfani da wutar lantarki mai son gaba, wanda ke ƙara yawan fitar da zafi a gefen sanyi.

• Yanayin dumama: Lokacin da zafin jiki ya faɗi ƙasa da ƙasan wurin saitawa, mai sarrafawa yana juya yanayin wutar lantarki, ta haka yana canza rawar zafi na mahaɗa biyu kuma yana fara dumama mai aiki.

Wannan tsarin juyawar yanayi yana ba da damar sauya yanayin zafi nan take - ba tare da latency na inji ko inertia na thermal ba - ta haka yana ba da amsa mai ƙarfi idan aka kwatanta da tsarin sanyaya na gargajiya waɗanda suka dogara da abubuwan dumama daban-daban kuma suna nuna jinkiri na inji.

2. Wakilan aikace-aikacen wakilci

Saboda ƙarancin sawun ƙafarsu, aikinsu na shiru, aikin da ba ya girgiza, da kuma yanayin zafin jiki (cimma daidaiton sarrafawa na ±0.1 °C, da kuma ƙasa zuwa ±0.01 °C a cikin tsare-tsare masu inganci), tsarin sarrafa zafi na Thermoelectric module (mai sanyaya peltier) na TEC ana amfani da shi sosai a sassa daban-daban na aiki:

• Kimiyyar lafiya da rayuwa: Na'urorin zagaya yanayi na polymerase chain reaction (PCR), na'urorin zagaya kwayoyin halitta na zamani, na'urorin nazarin halittu na asibiti, da kuma kwantena masu jigilar allurar rigakafi masu saurin kamuwa da zafin jiki—dukkan suna buƙatar daidaiton zafi mai tsauri don tabbatar da ingancin gwaji da amincin marasa lafiya.

• Tsarin gani da na gani: Na'urorin hangen nesa na Laser, na'urori masu auna haske, da na'urorin gano haske na infrared, inda canjin yanayin zafi na mintuna ke haifar da karkacewar raƙuman ruwa ko karkacewar hanyar gani; don haka daidaita TEC daidai yana da mahimmanci don kiyaye amincin sigina a cikin sadarwa ta gani da kuma nazarin yanayin saman na'urorin hangen nesa masu inganci.

• Masana'antu da masana'antu masu samar da semiconductor: Matakai na ɗaukar hoto, kayan aikin sassaka plasma, kayan aikin daukar hoto na ADAS, da kuma na'urorin watsa bayanai na LiDAR - inda kwanciyar hankali na zafi ke jagorantar maimaita aiki, yawan amfanin ƙasa, da kuma amincin kayan aiki na dogon lokaci a ƙarƙashin yanayi mai canzawa.

• Na'urorin lantarki na masu amfani da kayayyaki da na'urori masu ɗaukuwa: Na'urorin sarrafa zafi na wayar salula, ƙananan na'urorin cire danshi daga ruwa, ƙananan na'urorin sanyaya sanyi, da na'urorin matse sanyi na fata—suna samar da mafita mai natsuwa, marasa sanyaya, kuma masu dorewa ga muhalli.

3. Tsarin ƙasa mai mahimmanci wanda ke ba da damar ingantaccen aikin TEC na thermoelectric

Domin cikakken amfani da ƙarfin na'urorin peltier, na'urorin peltier, TECs a cikin tsarin sarrafa zafin jiki, dole ne a tsara wasu ƙananan tsarin da suka dogara da juna sosai kuma a haɗa su tare:

• Kula da martani bisa ga PID: Ganin yadda yanayin zafi da kuma yanayin canja wurin zafi mara layi na TECs, masu sanyaya peltier, ana amfani da tsarin PID na zamani don daidaita yanayin tuƙi, kawar da kuskuren yanayin da ba shi da tsauri, da kuma ci gaba da aiki da yanayin isothermal na gaske.

• Gudanar da zafi mai inganci a gefen zafi: Ganin cewa TECs suna aiki a matsayin famfunan zafi - ba wurin nutsewa na zafi ba - watsar da zafi mai kyau daga gefen zafi shine babban abin da ke haifar da shi. Rashin aiki na tsarin galibi yana faruwa ne sakamakon rashin isasshen sanyaya gefen zafi; saboda haka, na'urorin rage zafi na aluminum ko jan ƙarfe masu yawan aiki, waɗanda aka ƙara ta hanyar amfani da iska mai ƙarfi ko madaukai masu sanyaya ruwa, su ne aikin da aka saba yi.

• Na'urar auna zafin jiki mai inganci: Ma'aunin daidaito ya dogara ne akan na'urori masu auna zafin jiki kamar NTC thermistors ko na'urorin auna zafin jiki na platinum na PT100. Don rage juriyar haɗin zafi da kuma tabbatar da amsawar da aka bayar, dole ne a sanya na'urori masu auna zafin jiki a cikin hulɗar zafi mai zurfi tare da saman da aka sarrafa - galibi ana ɗaure su ta amfani da man shafawa na silicone mai sarrafa zafi kuma an daidaita su ta hanyar injiniya.

• Cikakken tsarin kariya: Masu sarrafa zafin jiki masu ƙarfi sun haɗa da kariya mai matakai da yawa - gami da kan wutar lantarki, ƙarfin lantarki mai yawa, zafin jiki mai yawa, da kariyar gajeriyar hanya - don rage haɗarin da ke tattare da abubuwan da ke faruwa na ɗan lokaci na ƙarfin lantarki mai juyawa, guduwar zafi, ko yanayin aiki mara kyau wanda zai iya yin illa ga tsarin Thermoelectric, tsarin TEC, tsawon rai na TEC ko amincin tsarin.

4. Kimantawa ta Kwatantawa: Fa'idodi da ƙuntatawa

Fa'idodi:

• Gina-gine mai ƙarfi yana kawar da sassan motsi, yana tabbatar da aiki cikin shiru, babu gyara, da tsawaita tsawon rai;

• Tsarin da ke da saurin girma yana tallafawa haɗakarwa cikin dandamali masu iyaka ga sararin samaniya;

• Saurin juyawar polarity na zafi yana ba da damar yin aiki a hankali a fadin faɗin zafin jiki (misali, −50 °C zuwa +80 °C);

• Tsarin da ba ya dauke da injin daskarewa ya yi daidai da ƙa'idodin muhalli na duniya da manufofin dorewa.

Iyakoki:

• Ƙananan ma'aunin aiki (COP), musamman a ƙarƙashin manyan bambance-bambancen zafin jiki;

• Matsakaicin ƙarfin sanyaya yana da iyaka ta asali saboda ingancin ƙin zafi a gefen zafi;

• Yawan amfani da wutar lantarki yana ƙaruwa sosai a yanayin ΔT mai tsanani;

• Na'urorin TEC masu ƙarfi (na'urorin thermoelectric) suna haifar da hauhawar farashin kayan aiki da ƙera su, wanda ke shafar tattalin arzikin tsarin gabaɗaya.

Bayanin TES1-12106T125

Zafin zafi a gefen yana da digiri 30 na Celsius,

Imax: 6A,

Babban ƙarfin lantarki: 14.2V

Qmax：50.8 W

Delta T max： 67 C

Girman: 15X60X3.4mm, diamita na rami: 6.2

Farantin yumbu: 96%Al2O3

An rufe: An rufe ta da 704 RTV (launi fari)

Waya: 22AWG PVC, juriya ga zafin jiki 80℃.

Tsawon waya: 150mm

Kayan lantarki: Bismuth Telluride