Wireless power supply device, electronic device capable of receiving wireless power, and method for controlling transmission of wireless power

• US 9,525,464 B2
• Filed: 12/16/2010
• Issued: 12/20/2016
• Est. Priority Date: 12/16/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Jaehong, Lee, Haesoo
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Pham, Duc M
• Application Number:
  US13/993,481
• Publication Number:
  US 20130264880A1
• Time in Patent Office: 2,196 Days
• Field of Search: 307/104
• US Class Current: 1/1
• CPC Class Codes: H02J 13/00001 characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
• CPC Class Codes: H02J 13/00002 characterised by monitoring
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00022 using wireless data transmission
• CPC Class Codes: H02J 2310/14 The load or loads being home appliances
• CPC Class Codes: H02J 2310/64 The condition being economic, e.g. tariff based load management
• CPC Class Codes: H02J 50/00 Circuit arrangements or systems for wireless supply or distribution of electric power
• 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 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 9/005 using a power saving mode for copiers G03G15/5004
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/20 End-user application control systems
• CPC Class Codes: Y04S 20/221 General power management systems
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/242 Home appliances
• CPC Class Codes: Y04S 40/121 using the power network as support for the transmission
• CPC Class Codes: Y04S 40/126 using wireless data transmission
• CPC Class Codes: Y04S 50/10 : Energy trading, including energy flowing from end-user application to grid

Abstract

The present application relates to a wireless power supply device and wireless power transmission control in an electronic device capable of receiving wireless power. According to an embodiment of the present application, the electronic device capable of receiving wireless power comprises a communication unit which receives power information including at least one piece of electricity bill information and power demand information. Also, the electronic device comprises a wireless power receiving unit which receives wireless power wirelessly supplied from a wireless power supply device, and a power converting unit which converts the wireless power received into power that can be used in the electronic device. By using various embodiments suggested by the present application, use of power wirelessly supplied can be efficiently controlled, and accordingly, electric power can be economically and efficiently used.

Claims

1. An electronic device for receiving wireless power, the electronic device comprising:

a communication unit configured to receive power information including at least one of electricity bill information and power demand information;

a wireless power receiving unit configured to receive wireless power from a wireless power supplying device;

a power converting unit configured to convert the received wireless power to power usable for the electronic device;

a controller configured to determine a power saving period based on the received power information and control the electronic device such that a request for aborting wireless power transmission is sent to the wireless power supplying device through the communication unit during the power saving period and a request for wireless power transmission is sent to the wireless power supplying device through the communication unit during a non-power saving period;

a supplemental power storage configured to store supplemental power, wherein the supplemental power of the supplemental power storage is used for operation of the electronic device and is rechargeable; and

a supplemental power assuring unit configured to determine an amount of the supplemental power stored in the supplemental power storage.

2. The electronic device of claim 1, wherein the controller is further configured to determine that a high-priced period determined from the electricity bill information or an over-demanding period determined from the power demand information is the power saving period.

3. The electronic device of claim 2, wherein the high-priced period or the over-demanding period is settable by a user.

4. The electronic device of claim 1, further comprising a supplemental power unit configured to supply supplemental power, wherein the supplemental power of the supplemental power unit is used for minimum operations of the electronic device.

5. The electronic device of claim 4, further comprising a display unit configured to provide a display screen, wherein the controller is further configured to control the electronic device such that a user notification message is provided to one side of the display unit based on whether or not the user notification message is provided during the power saving period.

6. The electronic device of claim 1, further comprising a display unit configured to provide a display screen, wherein the controller is further configured to control the electronic device such that a user notification message is provided to one side of the display unit based on whether or not the user notification message is provided during the power saving period and indicates an amount of the supplemental power.

7. The electronic device of claim 6, wherein if a user'"'"'s wireless power transmission command or a user'"'"'s wireless power transmission abortion command is inputted to the electronic device after the user notification message is provided, the controller is further configured to control the electronic device such that a wireless power transmission request or a wireless power transmission abortion request is transmitted to the wireless power supplying device through the communication unit.

8. The electronic device of claim 6, wherein the controller is further configured to provide different notification messages based on whether or not respective ones of the different user notification messages are provided during the power saving period and indicate sufficient supplemental power, during the power saving period and indicate insufficient supplemental power, during a non-power saving period and indicate sufficient supplemental power, and during a non-power saving period and indicate insufficient supplemental power.

9. A wireless power transmission control method for an electronic device that receives wireless power supplied from a wireless power supplying device, the method comprising:

receiving power information including at least one of electricity bill information and power demand information;

determining a power saving period based on the received power information;

sending a request for aborting wireless power transmission to the wireless power supplying device during the power saving period;

sending a request for wireless power transmission to the wireless power supplying device during a non-power saving period;

storing supplemental power in a supplemental power storage of the electronic device, wherein the supplemental power is used for operation of the electronic device and is rechargeable; and

determining an amount of the supplemental power stored in the supplemental power storage.

10. The method of claim 9, further comprising providing a notification message on one side of a display unit based on the determination of the power saving period.

11. The method of claim 9, further comprising:

providing a notification message on one side of a display unit based on the determination of the power saving period and the amount of supplemental power that is rechargeable in the electronic device; and

executing one of a wireless power transmission request and a wireless power transmission abortion request based on the notification message.

12. A wireless power supplying system comprising:

an electronic device; and

a wireless power supplying device configured to transmit wireless power, wherein the wireless power supplying device comprises a wireless power pad for supplying wireless power to the electronic device,

wherein the electronic device is configured to receive the transmitted wireless power on the wireless power pad and further comprises;

a communication unit configured to receive power information including at least one of electricity bill information and power demand information;

a wireless power receiving unit configured to receive the wireless power from the wireless power supplying device;

a power converting unit configured to convert the received wireless power to power usable for the electronic device;

a supplemental power storage configured to store supplemental power in the electronic device, wherein the supplemental power of the supplemental power storage is used for operation of the electronic device and is rechargeable;

a supplemental power assuring unit configured to determine an amount of the supplemental power stored in the supplemental power storage; and

a controller configured to determine a power saving period based on the received power information and control the electronic device such that a request for aborting wireless power transmission is sent to the wireless power supplying device through the communication unit during the power saving period and a request for wireless power transmission is sent to the wireless power supplying device through the communication unit during a non-power saving period.