Sensor mai kunna fan

datchik_vklyucheniya_ventilatora_1

A cikin tsarin sanyaya mota tare da injin fan ɗin lantarki, ana kunna fanka ta atomatik lokacin da zafin jiki ya canza.Babban rawa a cikin tsarin yana kunna fan kunna firikwensin - zaku iya koyan komai game da wannan bangaren daga wannan labarin.

 

Menene firikwensin kunna kunna fan?

Na'urar firikwensin kunna fan shine na'urar lantarki ko na'urar lantarki tare da ƙungiyar tuntuɓar (ƙungiyoyi) waɗanda ke rufe ko buɗe da'irar lantarki dangane da zafin jiki.Ana haɗa firikwensin a cikin da'irar samar da wutar lantarki ko sarrafa motar fan ɗin lantarki na tsarin sanyaya injin, wani abu ne mai mahimmanci wanda ke ba da sigina don kunna ko kashe fan ɗin dangane da zazzabi na coolant (sanyi) .

Waɗannan na'urori masu auna firikwensin ana amfani da su ne kawai a cikin motocin da aka sanye da injinan sanyaya wutar lantarki.Ana kunna da kashe magoya bayan injin crankshaft ta hanyar kama mai danko ko kuma ta wasu hanyoyin da ba a la'akari da su a nan.

Nau'in na'urori masu auna firikwensin fan

Dukkan na'urori masu auna firikwensin fan sun kasu kashi biyu bisa ka'idar aiki:

•Electromechanical;
•Electronic.

Bi da bi, na'urorin lantarki sun kasu kashi biyu:

• Tare da nau'i mai mahimmanci dangane da ruwa mai aiki tare da babban haɓakar haɓakawa (kakin zuma);
• Tare da nau'in ganewa bisa farantin bimetallic.

datchik_vklyucheniya_ventilatora_2

Saboda fasalulluka na ƙira, ana iya haɗa na'urori masu auna firikwensin lantarki kai tsaye zuwa da'irar samar da wutar lantarki ta fan (kodayake galibi ana haɗa firikwensin a cikin da'irar relay na fan), kuma na'urori masu auna firikwensin lantarki za a iya haɗa su da da'irar sarrafa fan.

Har ila yau, na'urori masu auna firikwensin lantarki sun kasu kashi biyu bisa ga adadin lambobin sadarwa:

• Gudun-gudu ɗaya - suna da rukunin lamba ɗaya, wanda ke rufewa a cikin takamaiman yanayin zafi;
• Gudun guda biyu - suna da ƙungiyoyin tuntuɓar guda biyu waɗanda ke rufe a yanayin zafi daban-daban, wanda ke ba ku damar canza saurin fan gwargwadon yanayin sanyi.

A wannan yanayin, ƙungiyoyin tuntuɓar na iya kasancewa cikin ɗaya daga cikin jihohi biyu: a buɗe a buɗe kuma yawanci rufe.A cikin akwati na farko, fan yana kunna lokacin da aka rufe lambobin sadarwa, a cikin na biyu - lokacin da suka buɗe (ana iya amfani da ƙarin da'irar sarrafawa a nan).

A ƙarshe, na'urori masu auna firikwensin sun bambanta a yanayin kunnawa / kashewa na magoya baya.A cikin na'urori na gida, ana ba da tazara na 82-87, 87-92 da 94-99 ° C, a cikin na'urorin waje ma'aunin zafin jiki yana kusan tsakanin iyakoki iri ɗaya, ya bambanta da digiri ɗaya zuwa biyu.

 

Zane da ƙa'idar aiki na firikwensin lantarki tare da kakin zuma

datchik_vklyucheniya_ventilatora_4

Wannan shine nau'in firikwensin fan.Tushen firikwensin akwati ne mai cike da kakin man fetur (ceresite, ya ƙunshi paraffins) tare da haɗakar foda na jan karfe.An rufe akwati tare da kakin zuma tare da membrane mai sassauƙa wanda mai turawa yake, an haɗa shi da injin tuƙi na lamba mai motsi.Tushen tuntuɓar na iya zama kai tsaye (ta amfani da mai turawa iri ɗaya) ko kai tsaye, ta amfani da lefa da bazara (a wannan yanayin, an sami ƙarin abin dogaro da ƙulli da buɗewar kewaye).Dukkanin sassa an rufe su a cikin akwati mai kauri mai kauri (wannan yana ba da ƙarin dumama ruwan aiki) tare da zare da mai haɗin lantarki.

Ka'idar aiki na irin wannan firikwensin yana dogara ne akan tasirin canza ƙarar ruwa mai aiki lokacin da yanayin zafi ya canza (kuma ana amfani dashi a cikin ma'aunin zafi na mota).Wax, wanda ke taka rawar ruwa mai aiki a cikin firikwensin, yana da babban haɓakar haɓakar thermal, lokacin da mai zafi, yana faɗaɗa kuma an cire shi daga akwati.Ƙwaƙwalwar faɗaɗawa yana dogara da membrane kuma yana sa shi ya tashi - wanda, bi da bi, motsa mai turawa ya rufe lambobin sadarwa - fan yana kunna.Lokacin da zafin jiki ya faɗi, membrane yana raguwa kuma lambobin sadarwa suna buɗe - fan yana kashe.

Na'urori masu saurin gudu biyu suna amfani, bi da bi, membranes biyu da lambobi masu motsi guda biyu, waɗanda ake kunna su a tsaka-tsakin yanayi daban-daban.

Ana ɗora firikwensin akan radiator na sanyaya (ta hanyar gasket ɗin rufewa), sashin aikin sa yana cikin hulɗa kai tsaye tare da sanyaya, wanda ruwan aiki ke yin zafi.Yawancin lokaci, mota tana amfani da firikwensin fan guda ɗaya, amma a yau kuma kuna iya samun mafita tare da na'urori masu saurin gudu guda biyu waɗanda aka saita zuwa yanayin zafi daban-daban.

 

Zane da ka'idar aiki na firikwensin tare da farantin bimetallic

datchik_vklyucheniya_ventilatora_5

Akwai nau'ikan na'urori masu auna firikwensin irin wannan nau'in, amma gabaɗaya, ƙirar su abu ne mai sauƙi.Tushen firikwensin shine farantin bimetallic na nau'i ɗaya ko wani, wanda aka samo lambar sadarwa mai motsi.Hakanan ana iya samun abubuwan haɗin gwiwa a cikin firikwensin don ƙarin amintaccen rufewar lamba.Ana sanya farantin a cikin akwati da aka rufe, wanda ke ba da zare da haɗin wutar lantarki don haɗi zuwa tsarin kula da fan.

Ka'idar aiki na firikwensin ya dogara ne akan abin da ya faru na nakasar farantin bimetallic lokacin da yanayin zafi ya canza.Farantin bimetallic faranti biyu ne na karafa da ke haɗe da juna waɗanda ke da nau'i daban-daban na faɗaɗa thermal.Yayin da zafin jiki ya tashi, ƙananan ƙarfe suna faɗaɗa ta hanyoyi daban-daban, sakamakon haka, farantin bimetallic yana tanƙwara kuma yana motsa lamba mai motsi - kewayawa yana rufe (ko yana buɗewa tare da lambobin da aka rufe kullum), fan ya fara juyawa.

Haɗin firikwensin yayi kama da wanda aka kwatanta a sama.Na'urori masu auna firikwensin wannan nau'in sune mafi ƙanƙanta saboda girman farashi da rikitarwa.

 

Zane da ka'idar aiki na firikwensin lantarki

datchik_vklyucheniya_ventilatora_6

A tsari, wannan firikwensin kuma yana da sauƙin gaske: yana dogara ne akan ma'aunin zafi da sanyio da aka sanya a cikin babban akwati na ƙarfe tare da zaren don murɗawa cikin radiyo da haɗin lantarki.

Ka'idar aiki na firikwensin ya dogara ne akan tasirin canza juriyar wutar lantarki na thermistor lokacin da yanayin zafi ya canza.Dangane da nau'in thermistor, juriyarsa na iya raguwa ko haɓaka tare da ƙara yawan zafin jiki.Ana lura da canjin juriya na thermistor ta hanyar lantarki, wanda, lokacin da wani yanayi ya kai, aika siginar sarrafawa don kunnawa, canza saurin juyawa ko kashe fan.

A tsari, wannan firikwensin kuma yana da sauƙin gaske: yana dogara ne akan ma'aunin zafi da sanyio da aka sanya a cikin babban akwati na ƙarfe tare da zaren don murɗawa cikin radiyo da haɗin lantarki.

Ka'idar aiki na firikwensin ya dogara ne akan tasirin canza juriyar wutar lantarki na thermistor lokacin da yanayin zafi ya canza.Dangane da nau'in thermistor, juriyarsa na iya raguwa ko haɓaka tare da ƙara yawan zafin jiki.Ana lura da canjin juriya na thermistor ta hanyar lantarki, wanda, lokacin da wani yanayi ya kai, aika siginar sarrafawa don kunnawa, canza saurin juyawa ko kashe fan.


Lokacin aikawa: Agusta-24-2023