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Stacked coil structure and electronic device including the same

專利號
US11177666B2
公開日期
2021-11-16
申請人
Samsung Electronics Co., Ltd.（KR Suwon-si）
發(fā)明人
Keumsu Song; Kwangseob Kim; Kihyun Kim; Dongzo Kim; Jiwon Kim; Jihye Kim; Yunjeong Noh; Changhak O; Hyungkoo Chung; Mincheol Ha; Jongchul Hong; Yongsang Yun
IPC分類
H01F17/00; H01F38/14; H02J5/00; H02J50/12; H02J50/40; H02J50/70; H02J7/02; H04B5/00
技術(shù)領(lǐng)域
coil,layer,may,power,first,turns,circuit,electronic,second,device
地域： Suwon-si

摘要

An electronic device is provided. The electronic device includes a coil unit, a power transmission circuit electrically connected to the coil unit, and a control circuit configured to wirelessly transmit power using the coil unit, and the coil unit may include a first coil. The first coil may include a first layer wound in a first shape by a first number of turns, and a second layer extending from the first layer and wound in a second shape by a second number of turns, and the second layer may be disposed above the first layer to overlap the first layer.

說明書

According to various embodiments, in the third coil 230, at least a portion of the fifth layer 231 may be exposed to the outside of the sixth layer 232 when viewed from above the sixth layer 232 (in the second direction (?Z)). The outer diameter D5 of the fifth layer 231 may be equal to or larger than the outer diameter D6 of the sixth layer 232. When the outer diameter D5 of the fifth layer 231 is larger than the outer diameter D6 of the sixth layer 232, the wire of the fifth layer 231 deposed in the region adjacent to the outer diameter D6 of the sixth layer 232 may be exposed to the top face and the rear face of the third coil 230.

According to various embodiments, it is possible to improve wireless power transmission efficiency through a transmission coil having a multi-layer structure according to the first coil 210, the second coil 220, and the third coil 230.

FIG. 14 is a block diagram of a wireless charging system according to various embodiments of the disclosure.

Referring to FIG. 14, a wireless charging system according to an embodiment may include an electronic device 10 configured to transmit wireless power and an external wireless power reception device 21 or 22 (e.g., the wireless power reception device of FIG. 1). The electronic device 10 may include all or part of the electronic device 10 illustrated in FIGS. 1 and 2.

權(quán)利要求

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