Mefuta e tloaelehileng ea li-pin PCB boqapi ba bona

Ka moralo oa PCB o hlokang ho hokahana le mekhoa ea kantle, o hloka ho nahana ka li-pin le li-sockets. Moralo oa PCB ka kotloloho kapa ka mokhoa o sa tobang o kenyelletsa mefuta e fapaneng ea likhoele.

Kamora ho bala likhatiso tse ngata tsa bahlahisi, u tla fumana hore mefuta ea lipini hangata e arotsoe ka mekhahlelo e latelang:

1. Nale ea mola o le mong/habeli

2. Turret slotted Pin

3. Lithakhisa tsa PCB tsa soldering

4. Lithakhisa tse tsoelipanang

5. Soldering cup terminal pin

6. Lithakhisa tse koetsoeng

7. Pin ea terminal

Bongata ba lithakhisa tsena li kopantsoe le li-sockets ‘me li entsoe ka thepa e fapaneng. Lisebelisoa tse tloaelehileng tse sebelisetsoang ho hlahisa lithapo tsena ke koporo ea beryllium, nickel ea beryllium, li-alloys tsa koporo, bronze ea phosphor, le copper tellurium. Lithakhisa li na le lisebelisoa tse fapaneng tsa phekolo ea holim’a metsi, tse kang koporo, loto, thini, silevera, khauta le nickel.

Lithakhisa tse ling lia rekisoa kapa li khoeuoe lithapong, empa lithakhisa (tse kang li-plug, li-solder mounts, li-press fit, le lisampole tsa turret) li kentsoe ho PCB.

U ka khetha mofuta o nepahetseng oa phini joang bakeng sa moralo oa PCB?

Ho khetha li-PCB ho hloka lintlha tse fokolang haholo ho feta likarolo tse ling tsa elektroniki. Tlhokomelo ea lintlha tsa mochini kapa tsa motlakase li ka lebisa mathateng a ts’ebetso ho prototype kapa li-PCB tsa tlhahiso.

Ha u khetha PCB Pins, u lokela ho nahana ka lintlha tse latelang.

1. Tšoaea

Ho hlakile hore, o hloka ho tseba mofuta oa phini oa PCB o lumellanang le moralo oa hau. Haeba u batla li-terminal pins bakeng sa likhokahano tsa board-to-board, lihlooho ke khetho e nepahetseng. Hangata lihlooho tsa phini li kenngoa ka likoti, empa ho boetse ho na le liphetolelo tse holimo, tse loketseng haholo bakeng sa kopano e itekanetseng.

Lilemong tsa morao tjena, thekenoloji e se nang solderless e fane ka likhetho tse ngata bakeng sa lithakhisa tsa PCB. Lithapa tse lekanang tsa khatiso li loketse bakeng sa ho tlosa welding. Li etselitsoe ho lekana masoba a PCB a padiloeng le ho fana ka ts’ebetso e sireletsehileng ea mochini le motlakase. Lihlooho tsa phini tsa mola o le mong li sebelisoa bakeng sa boto-to-board le terata-to-board.

2. Pitch

Lithapa tse ling tsa PCB li fana ka boholo bo fapaneng ba molumo. Mohlala, lihlooho tsa phini tsa mela e ‘meli hangata ke 2.54mm, 2mm le 1.27mm. Ho phaella ho boholo ba molumo, boholo le tekanyo ea hona joale ea pinana ka ‘ngoe le eona e fapane.

3. Boitsebiso

Lisebelisoa tse sebelisetsoang ho pata lithakhisa li ka baka phapang ea theko le conductivity. Lithako tse entsoeng ka khauta hangata li theko e boima ho feta lithapo tse entsoeng ka thini, empa li na le mekhoa e metle.

Moralo oa PCB o nang le mefuta e fapaneng ea likhoele

Joalo ka kopano efe kapa efe ea PCB, ho na le maqheka a ka u pholosang ho tsoa matšoenyehong ha u sebelisa lithakhisa tsa terminal le meralo ea sehokelo. E ‘ngoe ea melao ea bohlokoa ka ho fetisisa ke ho beha boholo ba sekoti sa ho tlatsa ka nepo. Ka kopo, sheba boholo bo nepahetseng bo khothalelitsoeng ke moetsi. Ho tlatsa likoti tse nyane haholo kapa tse kholo haholo ho ka baka mathata a kopano.

Litšobotsi tsa motlakase tsa li-terminal pins le tsona li bohlokoa haholo, haholo-holo ha ho e-na le motlakase o moholo o phallang ho eona. U hloka ho fana ka palo e lekaneng ea lithakhisa ho etsa bonnete ba hore motlakase o hlokahalang hona joale ntle le ho baka mathata a mocheso.

Tlhokomelo ea mochini le ho beoa ke tsa bohlokoa bakeng sa lithapo tsa hlooho tsa PCB tsa sephutheloana.

Ho sebelisa li-plug pin bakeng sa likhokahano tsa board-to-board ho ka ba thata. Ntle le tlhophiso e nepahetseng, ho tlameha ho netefatsoe hore ha ho likarolo tsa boemo bo holimo joalo ka likoahelo tsa electrolytic tse thibelang lekhalo lipakeng tsa li-PCB tse peli. Ho joalo le ka lithakhisa tsa sephutheloana tse fetelang ka nģ’ane ho moeli oa PCB.

Haeba u sebelisa lithapo tsa lesoba kapa holim’a holim’a metsi, u lokela ho etsa bonnete ba hore pholiso ea mocheso e sebelisoa ho polygon ea fatše e hokahaneng le phini eo. Sena se etsa bonnete ba hore mocheso o sebelisoang nakong ea ts’ebetso ea solder o ke ke oa fela kapele ‘me ka mor’a moo o ama manonyeletso a solder.