The srew terminal mtundu wa high voltage ceramic capacitor amatchedwanso "Doorknob Capacitor"mu Chingerezi kapena  High Voltage Screw Terminal Ceramic Capacitor. Kampani yotchuka yaku Japan TDK (Tokyo Denkikagaku Kogyo) imatchula kuti "Ultra High Voltage Ceramic capacitor." Popeza chimphona chamagetsi ku Japan Murata adalengeza kuthetsedwa kwa ma capacitor apamwamba kwambiri a voltage mu autumn 2018, gawo lalikulu kwambiri pamsika ku China limakhala ndi mtundu waku Japan TDK. TDK ili ndi zaka zopitilira 40 pakupanga ndi kutsatsa ma ultra-high voltage ceramic capacitors, omwe amagwiritsidwa ntchito kwambiri ku China ma transfoma amagetsi apanyumba, ophwanya madera, makina apamwamba kwambiri azachipatala a CT, mafakitale a NDT kuyesa osawononga, laser yamphamvu kwambiri. zida, high-voltage electrostatic precipitators, etc. TDK a malonda amayang'ana makamaka Japan, Korea South, Russia, ndi Asia-Pacific dera, ndi kupezeka zochepa mu misika European ndi America.

 

Kuyambira nthawi ya Purezidenti wakale wa US a Trump, zoletsa zakhazikitsidwa kumakampani aku China zokhudzana ndi zida zapamwamba kwambiri monga tchipisi tapamwamba komanso zida zamagetsi. Makampani ambiri omwe adatchulidwa, mabizinesi aboma, komanso opanga zida zazikulu ku China ayamba kuganiziranso njira zina zapakhomo zamagulu akuluakulu. Njira ina ndikusintha ma TDK's ultra-high voltage ceramic capacitors yayikidwanso pa ndandanda.

 

M'malo mwake, opanga ena abwino kwambiri aku China opangira ma ceramic capacitor monga HVC Capacitor asintha bwino ma capacitor a ceramic otsika kwambiri kuchokera ku mtundu wodziwika bwino waku Japan MURATA ndi mtundu waku America Vishay. Ma capacitor a HVC adadziwika kwa nthawi yayitali kuchokera kumakampani ambiri aku Europe ndi America omwe adatchulidwa ndi makampani a Fortune 500. Chifukwa cha kuchepa kwa zinthu ndi zopangira, zinthu za TDK sizipereka mwayi wofanana kwa makasitomala aku Europe ndi America monga MURATA waku Japan ndi Vishay waku United States. Posachedwapa, pakhala ndemanga kuchokera ku mabungwe ofufuza a ku Ulaya ndi ku China ndi makasitomala otsiriza akuwonetsa kuti malonda a TDK ndi otsika kwambiri mu khalidwe ndi magawo ena poyerekeza ndi ma capacitor a HVC. Zotsatira zake, makasitomala asankha kugwiritsa ntchito ma capacitor a HVC m'malo mwa zinthu za ku Japan za TDK. 

1) Mphamvu ya Voltage ndi Capacitance Range: TDK kopitilira muyeso-mkulu voteji ceramic capacitors: 20KV-50KV (Z5T, Y5P, Y5S zipangizo); HVC doorknob mtundu mkulu-voltage ceramic capacitors: 10KV kuti 150KV (zida zazikulu ndi N4700, Y5U, Y5T, etc.). Mtundu wapamwamba kwambiri wamagetsi opangidwa ndi TDK pano ndi FHV-12AN 50KV 2100PF, Y5S zakuthupi. HVC imapereka zinthu zokhazikika kwa makasitomala monga 50KV 8000PF N4700, 60KV 2000PF N4700, 150KV 1000PF N4700, ndi zina zambiri. Makasitomala akafuna voteji yogwira ntchito kuposa 50KV, ma capacitor a HVC amatha kupereka ma voltages ochulukirapo komanso ma capacitance akulu kwambiri.



2) Mulingo wabwino bwanji waukadaulo wa TDK's Z5T, Y5P, Y5S dielectric material capacitors?

Akatswiri a HVC anayeza TDK's 30KV 2700PF ndi 50KV 2100PF screw capacitors ndipo adapeza kuti ngakhale TDK imagwiritsa ntchito Class 2 ceramics Y5S, Z5T, ndi zida zokhala ndi lead (zomwe zimanenedwa kuti zili pansi pa pulogalamu ya ROHS pa tsamba lawo), DF (dissipation) Makhalidwe amafika pamlingo wa Class 1 ceramic N4700. Izi zimaposa zopangidwa ndi anzawo aku China pankhaniyi.
 

 

3) Mapangidwe amkati a capacitors: Ma TDK's Ultra-high voltage ceramic capacitors amagwiritsa ntchito kachipangizo kakang'ono ka ceramic, ndipo nkhungu ya epoxy resin encapsulation ili ndi kukula kwake kwa 60mm, monga tafotokozera pamwambapa, zomwe zimalepheretsa kapangidwe kake mpaka 50KV 2100PF Y5S capacitor. HVC imagwiritsa ntchito kachipangizo ka mkati kamene kamakhala ndi zida zapawiri-chip kapena kulumikizana kofananira, zomwe zimathandizira kupanga mawonekedwe a capacitor kuposa omwe amapanga odziwika bwino. Ma capacitor okhala ndi ma voltages apamwamba monga 80KV, 100KV, ndi 150KV amachokera ku kulumikizana kwapawiri-chip, pomwe ma capacitance a Class 1 ceramic 5000PF ngakhale 8000PF amakwaniritsidwa kudzera mu kulumikizana kwapawiri-chip.


4)Kupaka ma disc ndi zina zambiri: TDK Ceramic Chip pamwamba pachikhalidwe chophimba mphamvu kudzera "silver plating." Silver ions ndi ma conductor abwino kwambiri koma amakondanso kusamuka. Mosiyana ndi izi, ma HVC screw capacitors mkati amavala chip ceramic ndi maelekitirodi amkuwa, zomwe zimapereka kukana bwino kwamagetsi apamwamba komanso kuthekera kwakukulu komweko poyerekeza ndi zokutira wamba zasiliva. (The chithunzi pamwambapa ikuwonetsa ma capacitor a TDK opanda wosanjikiza wa epoxy resin, wochotsedwa kuti awulule tchipisi ta ceramic ndi plating ya siliva ndi ma terminals achitsulo, ndi chithunzi pansipa onetsani ukadaulo wapadera wopaka mkuwa pamwamba pa ma capacitor a HVC.)






Pomaliza, TDK ndi HVC's screw terminal type ceramic capacitors iliyonse ili ndi zabwino zake zaukadaulo, zomwe zimawapangitsa kukhala opikisana nawo mofanana. Mwa zina, HVC imaposa kampani yaku Japan ya TDK. Komabe, poganizira zinthu monga nthawi yobweretsera komanso mitengo yomwe ogula amaganizira nthawi zonse, kukongola kwa ma TDK's ultra-high voltage ceramic capacitors sikuchepa poyerekeza ndi HVC.

Mtundu woyamba padziko lonse wa ma high-voltage screw-type ceramic capacitors ndi Japanese Murata. Mu 2018, Murata atalengeza kuti asiya kupanga, kampani yaku America ya VISHAY ndi kampani yaku Japan TDK adayesetsa kudzaza msika womwe Murata adasiya potulutsa zofalitsa ndikulemba "zambiri" pamasamba ovomerezeka a TDK.



Poyerekeza Japanese TDK ndi American Vishay, HVC Capacitor akadali njira yabwinoko kwa Murata.

1) Tingaone kuti TDK m'malo mwa Murata ndi m'malo movutikira. Mwachitsanzo, DHS4E4C532KT2B 15KV 5300PF N4700 ya Murata ikugwirizana ndi TDK ndi cholowa m'malo cha 15KV 7000PF, Y5S. Tikudziwa kuti ngakhale zinthu za TDK za Y5S zimawonetsa kutayika kochepa, miyeso yeniyeni imawonetsa milingo yofanana ndi mulingo wa N4700. Komabe, zoumba za Class 2 ngati Y5S sizitha kuchita komanso zoumba za Class 1 m'malo okwera kwambiri. Kuphatikiza apo, mphamvu ya 7000PF yochokera ku TDK ikhoza kukhala yayikulu kwambiri kwa makasitomala omwe amakonda kugwiritsa ntchito ma capacitor a Murata, ndipo magawo ake sangagwirizane ndi zinthu zoyambirira za Murata. Poganizira kuti TDK ndiwopanganso padziko lonse lapansi, pokhapokha ngati makasitomala ali ogula amphamvu kwambiri, TDK sangakhale wokonzeka kupanganso zisankho ndikugwiritsa ntchito mulingo womwewo wa zinthu zadothi kuti zilowe m'malo mwa Murata.



Ngati HVC ikanati ilowe m'malo mwa mtundu uwu wa Murata, choyamba mndandanda wazinthu zamtundu wa HVC zapakhomo ndizomwe zimagulitsidwa kwambiri pamsika wamagetsi opangira ma voltage, ophatikiza mitundu yonse yamagulu amtundu wapamwamba komanso wachiwiri wapanyumba komanso wachiwiri. padziko lonse lapansi, monga Murata, TDK, Vishay, HVCA, etc. Kwenikweni, mtundu uliwonse wa Murata umene watulutsidwa poyera pa intaneti uli ndi yankho lokonzekera kuchokera ku HVC. Ngakhale ma capacitor a Murata okhala ndi miyeso yokhazikika komanso zotengera zitsulo kwamakasitomala ena akuluakulu omwe sangawoneke pa intaneti (mwachitsanzo, 40KV 3000PF N4700 capacitor yochokera kumakampani owunikira omwe ali pansi pa Sumitomo Electric yaku Japan), HVC ikhoza kupereka yankho la 1: 1 nthawi zambiri. mtengo wotsika wa nkhungu. Kuphatikiza apo, mphamvu, kulolerana, zinthu, ndi zina, ndizofanana ndi zomwe Murata adazipanga, ndipo nthawi zina, HVC ngakhale kugwiritsa ntchito Class 1 "N4700" za ceramic m'malo mwa Murata's Class 2 "Z5U" zoumba za ceramic, zofanana kwambiri Nkhani yakale yaku China ya "Race of the Swift Horse." (田忌赛马)
 

2) Kuphatikiza apo, ngakhale TDK ndi kampani yotchuka padziko lonse lapansi yopanga zida zamagetsi ku Japan, kulumikizana kwaukadaulo ndi magwiridwe antchito anthambi za TDK ndi othandizira kunja kwa Japan sizolimba ngati za othandizira a HVC. Pakhala pali nthawi pomwe kasitomala wa kampani yamagetsi yaku Germany adanenanso kuti poyesa ndi ma capacitor a TDK ndi HVC, wothandizira wa TDK sanapereke chithandizo chokwanira chaukadaulo. Mosiyana ndi izi, wothandizira wa HVC waku Germany, AMEC, adayendera mwachangu makasitomala ofunikira, adatsimikizira kukhutitsidwa kwamakasitomala kudzera mukulankhulana kwaukadaulo, ndikuwonetsa kusinthasintha kwa magwiridwe antchito, ndikusiya chidwi kwa makasitomala. M'mafakitale monga zida zazikulu monga zosinthira mphamvu, chithandizo chaukadaulo chimayamikiridwa kwambiri ndi makasitomala omaliza.

3) Pambuyo pa khama la zaka zambiri, HVC Capacitor yadziwikiratu ndikukwaniritsa zotumiza zambiri kuchokera kwa makasitomala apamwamba kwambiri a voltage screw capacitor monga Nikon, Konica Minolta, GE Healthcare, Johnson & Johnson, Baker Hughes, ndi ena. Kuchita kwa bizinesi ndi makasitomala aku Japan ndi makampani a Fortune 500 kukuwonetsa kuti HVC Capacitor imakwaniritsa zofunikira zaukadaulo zamakasitomala ovuta kwambiri pamsika.




Mwachidule, HVC Capacitor ndi yoyenera m'malo mwa ma screw capacitor okwera kwambiri kuchokera ku mtundu waku Japan Murata poyerekeza ndi TDK. Kumlingo wina, zinthu za HVC zimatha kupatsa makasitomala omwe alipo a TDK ultra-high voltage capacitor luso losiyana laukadaulo.

Pansipa pali mitundu yofananira yamitundu yonse ya ma screw capacitor okwera kwambiri kuchokera ku TDK ndi HVC: