Receiver for wireless charging system for portable electronic device
A receiver for a wireless charging system, capable of receiving power energy using non-contact type magnetic induction, includes a coil capable of receiving the power energy and a part for generating a predetermined output power from the power energy received by the coil, a portable terminal, an NFC coil further provided outside of the coil, and a ferrite sheet further provided at the coil and the NFC coil.
1. A cellular phone having a lower case, an upper case, a charging battery, a controller, a an NFC module, a circuit for communication, and a receiver which receives a wireless charging energy, transfers the charging energy to the charging battery,
the receiver comprises
at least three coils which includes an NFC coil and a wireless charging coil;
the wireless charging coil which receives the wireless charging energy and is provided in a separated space apart from the NFC coil,
a first ferrite sheet which mounts the NFC coil;
a second ferrite sheet which mounts the wireless charging coil; and
an insulation film which wraps the wireless charging coil;
wherein the controller is connected to the wireless charging coil through a first connection line and the NFC module is connected to the NFC coil through a second connection line,
wherein the first connection line and the second connection line are electrically separated each other and connected to the controller and to the NFC module respectively,
and wherein an area where the wireless charging coil occupies is 20% to 80% of an area of the surface of the lower case.
2. The cellular phone according to claim 1 , wherein the distance between the wireless charging coil and the NFC coil is 1 millimeter to 10 millimeters.
3. The cellular phone according to claim 1 , wherein the first ferrite sheet and the second ferrite sheet are different kinds of ferrite sheet.
4. The cellular phone according to claim 1 , wherein the insulation film is disposed between the lower case and the circuit for communication and unattached to either the lower case or the circuit for communication.
5. The cellular phone according to claim 1 , wherein at least a part of the wireless charging coil is placed above the charging battery.
6. The cellular phone according to claim 1 , wherein the insulation film is provided on a surface of the charging battery.
7. The cellular phone according to claim 5 , further comprising a PCB which mounts the controller and is provided on a side of the charging battery.
8. The cellular phone according to claim 1 , wherein the insulation film is provided on a surface of the lower case.
9. The cellular phone according to claim 1 , wherein the NFC coil is provided in an inside space surrounded by the wireless charging coil.
10. The cellular phone according to claim 1 , wherein the first ferrite sheet has a groove and the NFC coil are provided in the groove.
11. The cellular phone according to claim 1 , wherein another wireless coil is included and the wireless charging coil and another wireless charging coil have different charging mode each other.
12. The cellular phone according to claim 11 , wherein another wireless coil is inactive while the wireless charging coil is active.
13. The cellular phone according to claim 1 , wherein the NFC coil is inactive while the wireless charging coil is active.
14. The cellular phone according to claim 1 , wherein the ferrite sheet, the wireless charging coil and the NFC coil are provided as one set.
15. A cellular phone having a lower case, an upper case, a charging battery, a controller, a an NFC module, a circuit for communication, and a receiver which receives a wireless charging energy, transfers the charging energy to the charging battery,
the receiver comprises
three coils which includes an NFC coil, a wireless charging coil and the other coil;
the wireless charging coil which receives the wireless charging energy and is provided in a separated space apart from the NFC coil,
a first ferrite sheet which mounts the NFC coil;
a second ferrite sheet which mounts the wireless charging coil; and
an insulation film which wraps the wireless charging coil;
wherein the controller is connected to the wireless charging coil through a first connection line and the NFC module is connected to the NFC coil through a second connection line,
wherein the first connection line and the second connection line are electrically separated each other and connected to the controller and to the NFC module respectively,
wherein an area where the wireless charging coil occupies is 20% to 80% of an area of the surface of the lower case,
and wherein the distance between the NFC coils and the wireless charging coil is larger than the distance between the NFC coils and the other coil.
16. The cellular phone according to claim 15 , wherein the distance between the wireless charging coil and the NFC coil is 1 millimeter to 10 millimeters.
17. The cellular phone according to claim 15 , wherein the first ferrite sheet and the second ferrite sheet are different kinds of ferrite sheet.
18. The cellular phone according to claim 15 , wherein at least a part of the wireless charging coil is placed above the charging battery.
19. The cellular phone according to claim 15 , wherein at least a part of the NFC coil is provided in an inside space surrounded by the wireless charging coil.
20. A cellular phone having a lower case, an upper case, a charging battery, a controller, a an NFC module, a circuit for communication, and a receiver which receives a wireless charging energy, transfers the charging energy to the charging battery,
the receiver comprises
three coils which includes an NFC coil, a wireless charging coil and the other coil;
the wireless charging coil which receives the wireless charging energy and is provided in a separated space apart from the NFC coil,
a ferrite sheet which mounts the NFC coil; and
the wireless charging coil; and
an insulation film which wraps the wireless charging coil;
wherein an area where the wireless charging coil occupies is 20% to 80% of an area of the surface of the lower case,
wherein the wireless charging coil is provided in an inside space surrounded by the NFC coil,
and wherein the distance between the NFC coils and the wireless charging coil is larger than the distance between the NFC coils and the other coil.