The invention discloses a spliced magnetic core. The spliced magnetic core is used for a wireless charging coil, and comprises: a first sub-magnetic core arranged in the center of the spliced magnetic core, wherein the geometric center of the first sub-magnetic core coincides with the geometric center of the spliced magnetic core; and a plurality of second sub-magnetic cores arranged around the first sub-magnetic core by taking the geometric center of the first sub-magnetic core as the center, wherein gaps among the second sub-magnetic cores are vertical to the winding of a wireless charging transceiving coil. The first sub-magnetic core is made of a first material, the second sub-magnetic cores are made of a second material, and the relative permeability of the first material is larger than or equal to that of the second material. The invention further discloses a wireless charging receiving and transmitting coil with the spliced magnetic core. According to the spliced magnetic core and the wireless charging transceiving coil, the inductance value, the mutual inductance and the coupling coefficient can be improved, and then the transmission efficiency of wireless charging is improved.
本发明公开了一种拼接式磁芯,其用于无线充电线圈,包括:第一子磁芯布置在该拼接式磁芯的中心,且其几何中心与该拼接式磁芯的几何中心重合;多个第二子磁芯以第一子磁芯的几何中心为中心围绕第一子磁芯布置,各第二子磁芯之间的间隙与无线充电收发线圈绕阻垂直;第一子磁芯采用第一材料制造,第二子磁芯采用第二材料制造,第一材料相对磁导率大于等于第二种材料相对磁导率。本发明还公开了一种具有所述拼接式磁芯的无线充电收发线圈。本发明拼接式磁芯和无线充电收发线圈能提高电感量、互感和耦合系数,进而提升无线充电的传输效率。
Spliced magnetic core and wireless charging transceiving coil
拼接式磁芯和无线充电收发线圈
30.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | H01F MAGNETS , Magnete / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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