METHOD AND SYSTEM FOR MULTI WIRELESS CHARGING

• US 20130278206A1
• Filed: 04/24/2012
• Published: 10/24/2013
• Est. Priority Date: 04/20/2012
• Status: Active Grant

• Current Assignee: Hyundai Mobis Co., Ltd.
• Original Assignee: Korea Electronics Technology Institute (Government of South Korea)
• Inventors: WON, Yun Jae, LIM, Seung Ok, MOON, Yeon Kug, KIM, Young Han, LIM, Yong Seok
• Granted Patent: US 9,059,599 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/50 using additional energy repeaters between transmitting devices and receiving devices
• 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 50/90 involving detection or optimisation of position, e.g. alignment
• 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: Y02E 60/10 Energy storage using batteries

Abstract

A wireless multi charging method and system are disclosed. The wireless charging method selects a portion of mobile devices located in a charging region as a group, and provides energy for wireless charging to the selected group of mobile devices. Accordingly, group charging is possible, and thus it is also possible to selectively charge mobile devices which allow charging.

Claims

1. A wireless charging method comprising:

selecting a portion of mobile devices located in a charging region as a group; and

providing energy intended to wirelessly charge the mobile devices in the group to the mobile devices in the group.

2. The method according to claim 1, wherein the providing provides magnetic field energy to a frequency band including resonant frequencies of the mobile devices of the group.

3. The method according to claim 1, wherein the selecting comprises:

selecting a portion of the mobile devices as a first group; and

selecting another portion of the mobile devices as a second group,

wherein the providing provides energy intended to wirelessly charge the mobile devices in the first group and energy intended to wirelessly charge the mobile devices in the second group in a time division method.

4. The method according to claim 1 further comprising:

granting a charging order of priority to the mobile devices located in the charging region; and

providing energy to the mobile devices, according to the granted charging order of priority.

5. The method according to claim 4, wherein the charging order of priority is determined considering at least one of type, state of battery charge, remaining battery time and distance to the charging base station.

6. The method according to claim 1 further comprising selecting a portion of the mobile devices located in the charging region as energy relays which relay magnetic field energy wirelessly.

7. The method according to claim 6, wherein the selecting selects a portion of the mobile devices as the energy relays, considering locations and states of battery charge of the mobile devices.

8. A wireless charging system comprising:

mobile devices; and

a charging device which selects a portion of mobile devices located in a charging region as a group, and provides energy intended to wirelessly charge the mobile devices in the group to the mobile devices of the group.