Thin film coil and electronic device having the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsDae Ki LIM, Tae Sung KIM, Hyeon Gil NAM, Chan Gwang AN, Hyun Seok LEE, Ki Won CHANG, Chang Mok HAN, Sang Woo BAE, Sung Eun CHO, Jae Suk SUNG
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Abstract
There are provided a thin film coil and an electronic device having the same, the thin film coil including a substrate; and a coil pattern including a first coil strand and a second coil strand formed on both surfaces of the substrate, respectively, wherein the first coil strand formed on one surface of the substrate includes at least one gyration path that passes through the other surface of the substrate and gyrates.
Claims9
A thin film coil provided in a wireless power transmitter, wirelessly transmitting power, or in a wireless power receiver, wirelessly receiving power transmitted from the wireless power transmitter, the thin film coil comprising:
- a substrate having a first surface and a second surface, and formed of an insulating layer;
- a first coil strand disposed on the first surface of the substrate, and including a spiral pattern and a lead-out pattern, the lead-out pattern having an end disposed inside the spiral pattern to be led out from the end, outwardly of the spiral pattern;
- a second coil strand disposed on the second surface of the substrate;
- and
- a plurality of detour vias connecting the first coil strand and the second coil strand to each other, while penetrating through the substrate in a position adjacent to the lead out pattern,
- wherein the spiral pattern is short-circuited in a position adjacent to the lead out pattern to be connected to the second coil strand through at least one of the plurality of detour vias.
A wireless power receiver wirelessly receiving power transmitted from a wireless power transmitter and storing the received power in a battery, the wireless power receiver comprising:
- a substrate having a first surface and a second surface, and formed of an insulating layer;
- a first coil strand disposed on the first surface of the substrate, and including a spiral pattern and a lead-out pattern, the lead-out pattern having an end disposed inside the spiral pattern to be led out from the end, outwardly of the spiral pattern;
- a second coil strand disposed on the second surface of the substrate;
- and
- a plurality of detour vias connecting the first coil strand and the second coil strand to each other, while penetrating through the substrate in a position adjacent to the lead out pattern,
- wherein the spiral pattern is short-circuited in a position adjacent to the lead out pattern to be connected to the second coil strand through at least one of the plurality of detour vias.
An electronic device comprising:
- a wireless power receiver;
- a battery storing power received by the wireless power receiver;
- and
- a case accommodating the wireless power receiver and the battery therein,
- wherein the wireless power receiver includes:
- a substrate having a first surface and a second surface, and formed of an insulating layer;
- a first coil strand disposed on the first surface of the substrate, and including a spiral pattern and a lead-out pattern, the lead-out pattern having an end disposed inside the spiral pattern to be led out from the end, outwardly of the spiral pattern;
- a second coil strand disposed on the second surface of the substrate;
- and
- a plurality of detour vias connecting the first coil strand and the second coil strand to each other, while penetrating through the substrate in a position adjacent to the lead out pattern,
- wherein the spiral pattern is short-circuited in a position adjacent to the lead out pattern to be connected to the second coil strand through at least one of the plurality of detour vias.
A case assembly for a portable device receiving power wirelessly, the case assembly comprising:
- a thin film coil;
- and
- a case of the portable device, disposed on the other side of the thin film coil,
- wherein the thin film coil includes:
- a substrate having a first surface and a second surface, and formed of an insulating layer;
- a first coil strand disposed on the first surface of the substrate, and including a spiral pattern and a lead-out pattern, the lead-out pattern having an end disposed inside the spiral pattern to be led out from the end, outwardly of the spiral pattern;
- a second coil strand disposed on the second surface of the substrate;
- and
- a plurality of detour vias connecting the first coil strand and the second coil strand to each other, while penetrating through the substrate in a position adjacent to the lead out pattern,
- wherein the spiral pattern is short-circuited in a position adjacent to the lead out pattern to be connected to the second coil strand through at least one of the plurality of detour vias.
Dependencies are inferred from the claim text.