PTC fuse, inozivikanwawo sepolyswitches, yakashandura dziviriro yedunhu mumagetsi emazuva ano, ichipa mhinduro inoshanda kune overcurrents. Mienzaniso yakafanana MF-R050 and the MF-R185 Izvo zvave zvakajairika mumagadzirirwo emagetsi uko kuchengetedza uye kusimba kuri pamberi. Kunyangwe zvakajairika, vashoma vashandisi vanonyatsonzwisisa mashandiro avanoita kana kuti mabhenefiti api avanopa pamusoro pechinyakare fuse.
Muchinyorwa chino chese, tichatsanangura zvakadzama kuti PTC fuse chii, kuti inoshanda sei, kuti mamodheru akajairika anosiyana sei, uye nei ari sarudzo yakanaka kwazvo yekuchengetedza zvishandiso zvako. Pamusoro pezvo, isu tinopa tarisiro yakazara yeruzivo rwehunyanzvi, mirairo yekushandisa, uye mamiriro anoshanda kuitira kuti, kana wapedza kuverenga, iwe uve nechivimbo chekusarudza nekushandisa zvikamu izvi mumapurojekiti ako.
Chii chinonzi PTC fuse kana Polyswitch?
Izwi rekuti PTC rinoreva mhando yechipopori inowedzera kukosha kwayo kana tembiricha yakwira, ndosaka ichinzi: Positive Temperature Coefficient. Muchirevo chekuchengetedzwa kwedunhu, izvi zvikamu zvinowanzonzi PTC fuses o polyswitch. Basa rayo guru ndere kukanganisa kuyerera kwezvino kana ichipfuura mamwe mazinga akatemerwa, nokudaro kudzivisa kumwe kukanganisa kudunhu.
Kusiyana nemafusi echinyakare ekushandisa kamwe chete, maPTC kana mapolyswitches "anogoneka patsva". Ndiko kuti, kana vaona overcurrent, vanoita nekuwedzera kupikisa kwavo uye kuderedza kuyerera kwemagetsi. Kana mamiriro ane njodzi angonyangarika uye chikamu chinotonhora, Kupikisa kunodzokera kumamiriro ayo epakutanga uye fuse inobvumira ikozvino kuyerera zvakare.
Uyu hunhu, kunze kwekudzivirira zvakavimbika, inochengetedza mari uye kugadzirisa sezvo chikamu chisingadi kuchinjwa mushure mechiitiko chega chega.
Kushanda musimboti wePTC fuse
Iko kushanda kwe a PTC fuse Iyo yakavakirwa pane polymeric zvinhu zvine embedded conductive particles. Under normal conditions, Iyo nyaya inoitisa ikozvino nekuderera kushomaZvisinei, kana ikozvino inowedzera zvakanyanya (somuenzaniso, munyaya yepfupi pfupi), zvinhu zvinopisa nekuda kweJoule effect.
Pakusvika pakupisa kwakanyanya, iyo polymer inowedzera, ichiparadzanisa conductive particles uye kuwedzera kuramba.Mhedzisiro yazvino ndeye kuganhurirwa kwazvino kune mazinga akachengeteka kana kupotsa-kuperera kwekuyerera. Nokufamba kwenguva, kana chikonzero chekudyisa zvakanyanya chikabviswa, chikamu chinotonhora, zvinhu zvinowanazve chimiro chayo, uye kuyerera kwemazuva ano kunodzorerwa.
- Maitiro acho akazara otomatiki uye anodzoreredzwa.
- Izvi zvinovaita mhinduro yakakwana yemidziyo yakaoma kuwana kana inoda kuvimbika kwakanyanya.
Zvakanakira pamusoro pemamwe masisitimu ekudzivirira
Kusarudza fuse yePTC kunopa huwandu hwezvakanakira zvakajeka pane zvakajairwa fuse:
- Reusability: Iyo PTC fuse haidi kuchinjwa mushure mekupfuura. Inozvigadzirisa yega kana mamiriro adzokera kune zvakajairika.
- Kurumidza uye otomatiki mhinduro: Shanduko yehurumende inokurumidza kana iyo overcurrent ikaitika.
- Kuramba Kudzivirirwa: Kunyange kana dambudziko rikaramba riripo, fuse inogadzirisa ikozvino uye inodzivirira mamwe ose edunhu.
- Kuchengeta mari: Inoderedza kudiwa kwekugara kuchitsiviwa, kunyanya mumidziyo yakaoma-ku-kuwana.
Featured Models: MF-R050 uye MF-R185
Pakati pe anonyanya kufarirwa PTC fuse Isu tinonyanya kusimbisa mienzaniso MF-R050 y MF-R185Vese vari vemhuri yeBourns brand's MF-R, inowanikwa zvakanyanya muzvitoro zvemagetsi.
MF-R050: Zvimiro uye kushandiswa
Iyo MF-R050 ifuse yepolymer PTC yakagadzirirwa macurrents anosvika 0,5A uye yakanyanya voltage ye60V. Iyo inopihwa mune radial package yechinyakare yakadhindwa yedunhu bhodhi mounting. Yayo yakajairika yekutsika ikozvino ingangoita 1 A; ndiko kuti, kana dunhu richipfuura iri ikozvino, fuse inofamba.
- Zvishandiso zvinonyanya kushandiswa: Shandisa mumidziyo yemagetsi inotakurika, majaja, mota diki, matoyi, uye yakaderera-voltage control system. Saizi yaro compact inoita kuti ive yakakodzera kune zvemagetsi zvevatengi.
- Nguva dzekupindura: Inopindura mukati memasekonzi, ichidzikamisa kuyerera kwemagetsi kusvika kumazinga akachengeteka.
MF-R185: Zvimiro uye kushandiswa
Kune chikamu chayo, the MF-R185 inoshandiswa mumashandisirwo anoda huwandu hwepamusoro ikozvino, neyakajairwa chikumbaridzo che1,85A (naizvozvo zita). Iyo zvakare inotsigira akati wandei anokonzeresa uye kusetazve ma cycle, uye anowanzo kuwanikwa mumagetsi emagetsi, maindasitiri controller, uye zvishandiso zvine zvepakati-yepamusoro simba zvinodiwa.
- Mafomu: Maindasitiri anodzora midziyo, kushandura magetsi ekushandisa uye midziyo yekutaurirana.
- Kusimba kukuru: Kugona kwayo kubata makwikwi akakwira kunoita kuti ive yakakodzera kune masisitimu ayo, kunyangwe achiwanzo shanda pane yakaderera ikozvino, anogona kusangana akakomba maspikes kana mapfupi maseketi.
Ndinoisa sei fuse yePTC uye chii chandinofanira kutarisa?
Iyo PTC fuse Inoiswa mumutsara nedunhu kana mutoro unochengetedzwa. Mamodheru akajairika, akadai seMF-R050 neMF-R185, ane mapini terminals akakodzera kuiswa mumabhodhi edunhu akadhindwa (PCBs). Zvakakosha kuti:
- Sarudza yakakodzera yakayerwa ikozvino: Kana mudziyo wako uchiwanzo dhirowa 400mA, semuenzaniso, sarudza PTC inofamba pamusoro peiyo kukosha.
- Chengetedza chengetedzo margin: Sarudza mamodheru ane huwandu hunobvumidzwa voltage inodarika iyo yedunhu.
- Nzvimbo iripo: Inokurudzirwa kuisa chikamu pedyo nemagetsi emagetsi kana panzvimbo dzakakosha dzekupinda.
Kana usina chokwadi, gara uchitarisa bepa remugadziri, iro rine ruzivo rwekufamba ikozvino, kubata ikozvino, uye mamwe ma paramita, kusanganisira kutenderera kwehupenyu uye tembiricha yekushandisa.
Kushanda kwekupisa: mwoyo wePTC
Imwe yemakiyi ekugadzira a polyswitch ndewako mhinduro inopisaKana yakawandisa ikozvino inoyerera, iyo PTC inova inopisa zvakanyanya. Miedzo yeLabhoritari inowanzoratidza mifananidzo inopisa umo, mushure menguva pfupi, tembiricha yePTC inogona kusvika 100 ° C kana kupfuura. Ichi chivakwa chinovimbisa kukurumidza uye kwakavimbika kufamba.
Mumamiriro akajairika, chikamu chacho hachimbopisa uye chinobvumira kuyerera kwazvino kusingabvumirwe. Zvisinei, kana ikozvino ikawedzera kamwe kamwe (somuenzaniso, nekuda kwekutadza kwemutongi kana kuti pfupi pfupi mumutoro), PTC inopisa, inowedzera kupikisa kwayo, uye inobudirira inogadzirisa kuyerera kwemagetsi. Musiyano wetembiricha pakati penzvimbo dzakajairwa nedzakagumburwa unogona kuita mazana emadhigirii, izvo zvinoratidza kusimba kwedziviriro.
Chengetedzo kufunga uye zvinobvira miganhu
Kunyange PTC fuse inopa dziviriro huru, pane zvimwe zvinhu zvinofanirwa kutariswa:
- Corriente de fuga: Kunyange kana vakagumburwa, vanongobvumira kamhepo kanenge kasara kupfuura. Iri harisi dambudziko kune mazhinji maapplication, asi zvimwe zvakatetepa zvikamu zvinogona kukuvara kana kuvuza kwakakosha.
- Kukurumidza kudzoreredza Iyo nguva inotora kutonhora pasi uye kudzokera kune "yakajairika" mamiriro zvinoenderana neambient tembiricha uye dhizaini yedunhu.
- Ivo havasi kutsiva zvachose kune ese ekudzivirira masisitimu: Mumaseketi akakosha, zvakajairika kubatanidza PTC nemafizi echinyakare kana masystem ekucheka emagetsi.
Zvishandiso zvakajairika zvehupenyu chaihwo
Kushandiswa kwe PTC resettable fuse Zviri kuwedzera kuwanda mu:
- Consumer electronics: Kuchengetedza masekete mumachaja, matoyi, midziyo midiki, uye midziyo inotakurika.
- Motokari: Inoshandiswa zvakanyanya mumamodule emagetsi, kunyanya mumotokari dzemagetsi uye dzakasanganiswa.
- Nhaurirano uye network: Kuchengetedza midziyo yekutapurirana, modem, uye marouters kubva netsaona magetsi ekuwedzera.
- Simba masosi: Vanovimbisa kutendeseka kwesimba rekupa uye zvishandiso zvakabatana zvinopesana nekukwira kwemagetsi kusingatarisirwe.
Pamusoro pezvo, ivo vari kuisirwa mumasensa, ma LED ekuvhenekesa masisitimu, uye chero midziyo inoda kuchengetedza kuenderera kwesevhisi pasina nguva yekudzikira nekuda kwemafusi anoputika.
Mazano anoshanda ekusarudza nekuchengetedza fuse yePTC
- Nguva dzose tarisa kune technical sheet: Ikoko iwe unowana iyo chaiyo data yekubata ikozvino (bata ikozvino) uye rwendo rwazvino (rwendo rwazvino).
- Rangarira mwero wekuchengetedza: Usashandise PTC ine muganho wakanyanya kuderera kana uchienzaniswa neyakajairwa ikozvino. Kana mudziyo wako uchiwanzo shanda pa450mA, sarudza yemhando yepamusoro inokonzeresa.
- Tarisa zvakatipoteredza: Mumakamuri ane tembiricha yakakwira, iyo PTC inogona kukurumidza kupfuura zvaitarisirwa.
- Ita bvunzo: Usati waita mukugadzira, isa dunhu kumamiriro epasirese kuti uone kushanda kwefuse.
Chekupedzisira, kana uine chero kusahadzika nezve modhi yekusarudza, vagadziri uye vagovani vanopa kurudziro uye zviyero zvekushandisa kumhuri yega yega yePTC. Unogonawo kuwana ruzivo pa Nzira yekugadzira simbi yakagadzirwa kumba kupa dziviriro yakakura uye insulation kune zvikamu mune mamwe mapurojekiti akasarudzika.
Kushanda kwekupisa: mwoyo wePTC
Imwe yemakiyi ekugadzira a polyswitch ndewako mhinduro inopisaKana yakawandisa ikozvino inoyerera, iyo PTC inova inopisa zvakanyanya. Miedzo yeLabhoritari inowanzoratidza mifananidzo inopisa umo, mushure menguva pfupi, tembiricha yePTC inogona kusvika 100 ° C kana kupfuura. Ichi chivakwa chinovimbisa kukurumidza uye kwakavimbika kufamba.
Mumamiriro akajairika, chikamu chacho hachimbopisa uye chinobvumira kuyerera kwazvino kusingabvumirwe. Zvisinei, kana ikozvino ikawedzera kamwe kamwe (somuenzaniso, nekuda kwekutadza kwemutongi kana kuti pfupi pfupi mumutoro), PTC inopisa, inowedzera kupikisa kwayo, uye inobudirira inogadzirisa kuyerera kwemagetsi. Musiyano wetembiricha pakati penzvimbo dzakajairwa nedzakagumburwa unogona kuita mazana emadhigirii, izvo zvinoratidza kusimba kwedziviriro.
