WIRELESS CHARGING METHOD AND APPARATUS THEREOF

• US 20170047769A1
• Filed: 07/05/2016
• Published: 02/16/2017
• Est. Priority Date: 08/13/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KOO, Kyungha, LEE, Changhyung, KIM, Jihong, LEE, Ju-Hyang, KIM, Kihyun, LEE, Wooram, KIM, Jihye, NOH, Yunjeong, PARK, Seho, SUN, Kumjong, HA, Mincheol, HWANGBO, Sangmoo
• Granted Patent: US 10,270,276 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/0029 with safety or protection devices or circuits
• CPC Class Codes: H02J 7/00309 Overheat or overtemperature protection
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations

Abstract

An electronic device is provided. The electronic device includes a housing, a wireless charging coil disposed inside the housing, a fan disposed inside the housing and in proximity to the coil, a temperature sensor disposed inside the housing and in proximity to the coil, a wireless charging circuit having the coil and configured to transmit power wirelessly to an external device via the coil, and a control circuit electrically connected to the fan, the temperature sensor, and the wireless charging circuit. The control circuit may be configured to receive a signal from the external device, receive data related to a temperature of the coil from the temperature sensor, and control the fan at least partially on the basis of at least one of the signal and the data.

Claims

1. An electronic device comprising:

a housing;

a wireless charging coil disposed inside the housing;

a fan disposed inside the housing and in proximity to the wireless charging coil;

a temperature sensor disposed inside the housing and in proximity to the wireless charging coil;

a wireless charging circuit having the wireless charging coil and configured to transmit power wirelessly to an external device via the wireless charging coil; and

a control circuit electrically connected to the fan, the temperature sensor, and the wireless charging circuit,

wherein the control circuit is configured to;

receive a signal from the external device,

receive data related to a temperature of the wireless charging coil from the temperature sensor, and

control the fan at least partially on a basis of at least one of the signal and the data.

2. The electronic device of claim 1, wherein the wireless charging circuit is capable of operating in a first mode for transmitting the power with a first power source or a second mode for transmitting the power with a second power source having higher power than the first power source, and

wherein the control circuit is configured to select the first mode or the second mode at least partially on the basis of at least one of the signal and the data.

3. The electronic device of claim 2, wherein the control circuit further comprises a circuit for interfacing with an external power source, and is configured to receive power of a different level from the external power source via the circuit for interfacing on the basis of the first mode or the second mode.

4. The electronic device of claim 1, wherein the control circuit is configured to turn on or turn off the fan at least partially on the basis of at least one of the signal and the data.

5. The electronic device of claim 1, wherein the control circuit is configured to adjust a rotation speed of the fan at least partially on the basis of at least one of the signal and the data.

6. The electronic device of claim 1, wherein the control circuit is configured to receive a signal from the external device via the wireless charging circuit.

7. The electronic device of claim 6, wherein the signal from the external device includes an indication for requesting control of the fan.

8. The electronic device of claim 6, wherein the signal from the external device includes an indication regarding a level of power transmitted wirelessly to the external device via the wireless charging coil.

9. The electronic device of claim 1, wherein the electronic device constitutes a part of furniture, a building structure, a vehicle, and a white appliance.

10. A method for performing wireless charging in an electronic device, the method comprising:

receiving a signal from an external device;

receiving data related to a temperature of a wireless charging coil from a temperature sensor, the temperature sensor disposed inside housing of the electronic device and in proximity to the wireless charging coil; and

controlling a fan, the fan disposed inside the housing and in proximity to the wireless charging coil, at least partially on a basis of at least one of the signal and the data.

11. The method of claim 10, further comprising:

operating, using a wireless charging circuit having the wireless charging coil and disposed inside the housing, in a first mode for transmitting the power to a first power source, or

operating, using the wireless charging circuit, in a second mode for transmitting the power to a second power source having higher power than the first power source, and

wherein the controlling of the fan further comprises selecting the first mode or the second mode at least partially on the basis of at least one of the signal and the data.

12. The method of claim 11, further comprising interfacing, using an interface circuit, with an external power source,

wherein the controlling of the fan comprises receiving power of a different level from the external power source via the interface circuit on the basis of the first mode or the second mode.

13. The method of claim 10, wherein the controlling of the fan comprises turning on or turning off the fan at least partially on the basis of at least one of the signal and the data.

14. The method of claim 10, wherein the controlling of the fan comprises adjusting a rotation speed of the fan at least partially on the basis of at least one of the signal and the data.

15. The method of claim 10, wherein the controlling of the fan further comprises receiving a signal from the external device via a wireless charging circuit having the wireless charging coil.

16. The method of claim 15, wherein the signal from the external device includes an indication requesting control of the fan.

17. The method of claim 15, wherein the signal from the external device includes an indication regarding a level of power transmitted wirelessly to the external device via the wireless charging coil.

18. The method of claim 10, wherein the electronic device constitutes at least one of a part of furniture, a building structure, a vehicle, and a white appliance.

19. The method of claim 10, further comprising:

operating, using a wireless charging circuit having the wireless charging coil and disposed inside the housing, in a first mode for transmitting the power at a first power level, or

operating, using the wireless charging circuit, in a second mode for transmitting the power at a second power source having higher power than the first power level,

wherein selection of the first power level or the second power level is based at least in part on a time.