Electronic device and method for controlling fan of electronic device

Patent metadata

Field	Value
Publication number	US-2017047784-A1
Application number	US-201615233130-A
Country	US
Kind code	A1
Filing date	Aug 10, 2016
Priority date	Aug 12, 2015
Publication date	Feb 16, 2017
Grant date	—

Abstract

According to various embodiments, an electronic device for charging a battery of an external device may include a coil and a first circuit configured to wirelessly transmit power to the external device through the coil. A second circuit may be configured to wirelessly receive information from the external device. A fan may be disposed adjacent to the coil to discharge heat to the exterior of the electronic device. A control circuit may adjust the driving speed of the fan based at least in part on the received information.

First claim

What is claimed is:

1 . An electronic device comprising:
a coil; a first circuit configured to wirelessly transmit power to an external device through the coil; a second circuit configured to wirelessly receive information from the external device; a fan disposed adjacent to the coil and operable to discharge heat to the exterior of the electronic device; and a control circuit configured to adjust a driving speed of the fan based at least in part on the received information.

2 . The electronic device according to claim 1 , wherein the control circuit is further configured to adjust a transmit power level based at least in part on the received information.

3 . The electronic device according to claim 2 , wherein the control circuit is configured to change the driving speed of the fan based on the adjusted transmit power level.

4 . The electronic device according to claim 1 , wherein the second circuit is configured to wirelessly receive the information through the coil.

5 . The electronic device according to claim 1 , further comprising a wireless communication circuit, wherein the second circuit is configured to wirelessly receive the information through the wireless communication circuit.

6 . The electronic device according to claim 1 , wherein the information includes at least one of: charging configuration information related to a charge level of a battery of the external device, power control information related to an adjustment of a transmit power level, environment information related to a charging environment of the external device, or time information of the external device.

7 . The electronic device according to claim 6 , wherein the information includes the charging configuration information, and the charging configuration information includes at least one of a total capacity of a battery, a remaining capacity of the battery, the number of times the battery has been charged, the amount of battery usage, a charging mode, a charging method, or a wireless reception frequency band in the external device.

8 . The electronic device according to claim 6 , wherein the information includes the power control information, and the power control information includes at least one of: a requested amount of power according to a change in the charge level of the battery, a requested amount of power according to a conversion of a charging mode of the external device, or a requested amount of power according to a conversion of a charging method of the external device.

9 . The electronic device according to claim 8 , wherein the control circuit readjusts the adjusted driving speed of the fan based on a result of comparing the requested amount of power included in the received information with the transmit power level.

10 . The electronic device according to claim 9 , wherein if the requested amount of power is equal to, or less than an amount related to the transmit power level, the control circuit reduces the transmit power level and reduces the fan driving speed according to the reduced transmit power level, and if the requested amount of power exceeds the amount related to the transmit power level, the control circuit increases the transmit power level and increases fan driving speed according to the increased transmit power.

11 . The electronic device according to claim 6 , wherein the environment information includes at least one of temperature data, illuminance data, or sound data, measured by the external device.

12 . The electronic device according to claim 11 , wherein if the received temperature data value is equal to, or more than, a predetermined temperature data value, the control circuit reduces the transmit power level and reduces the fan driving speed according to the reduced transmit power level.

13 . The electronic device according to claim 11 , wherein if the received illuminance data value is equal to, or less than, a predetermined illuminance data value, the control circuit reduces the transmit power level and reduces the fan driving speed according to the reduced transmit power level.

14 . The electronic device according to claim 11 , wherein if the received sound level data value is equal to, or more than, a predetermined sound level data value, the control circuit reduces the transmit power level and reduces the fan driving speed according to the reduced transmit power level.

15 . The electronic device according to claim 6 , wherein if time data of the received time information corresponds to a predetermined period of time, the control circuit reduces the transmit power level and reduces the fan driving speed according to the reduced transmit power level.

16 . A control method of an electronic device having a fan, the method comprising:
wirelessly transmitting power to an external device through a coil of the electronic device; wirelessly receiving information from the external device; and adjusting a driving speed of the fan based at least in part on the received information.

17 . The method according to claim 16 , further comprising adjusting a transmit power level based at least in part on the received information.

18 . The method according to claim 17 , wherein the adjusting of the driving speed of a fan comprises changing the driving speed of the fan based on the adjusted transmit power level.

19 . An electronic device comprising:
a coil; a battery; a first circuit electrically connected to the battery and configured to wirelessly receive power from a wireless charging device through the coil; a second circuit configured to wirelessly transmit information to the wireless charging device; a memory; and a processor operably coupled to the first circuit, the second circuit, and the memory; wherein the memory stores instructions that, when executed by the processor, cause the processor to transmit, to the wireless charging device via the second circuit, information related to a battery state of the electronic device or an external environment of the electronic device, or time information, when the wireless charging device is positioned adjacent to the coil.

20 . The device according to claim 19 , further comprising a control circuit configured to change a driving speed of a fan therein based at least in part on the received information.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jung Ku-Chul
• Koo Kyung-Ha
• Park Chul-Woo
• Jang Ki-Youn
• Yun Yong-Sang
• Cho Chi-Hyun

Classifications

• G06F1/26

  Power supply means, e.g. regulation thereof (for memories G11C) · CPC title

• H02J50/80

  involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices · CPC title

• H02J50/12 Primary

  of the resonant type · CPC title

• G06F1/206

  comprising thermal management · CPC title

• H02J50/00

  Circuit arrangements or systems for wireless supply or distribution of electric power · CPC title