NON-CONTACT POWER SUPPLY APPARATUS, CHARGING APPARATUS, AND BATTERY APPARATUS

• US 20150188358A1
• Filed: 12/30/2014
• Published: 07/02/2015
• Est. Priority Date: 12/30/2013
• Status: Active Grant

• Current Assignee: Wit Co., Ltd.
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: JEONG, In Wha, Kim, Hugh, Choi, Sung Youl
• Granted Patent: US 9,735,607 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• 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 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/0014 Circuits for equalisation of charge between batteries

Abstract

A charging apparatus maintains a balance in power between battery cells by respectively charging the battery cells with power, and rapidly charges the battery cells with power. The charging apparatus supplying unit wirelessly supplying power, and the battery apparatus includes a plurality of charging units corresponding to a plurality of battery cells in a one-to-one scheme. Each of the plurality of charging units respectively includes a charging unit charging a corresponding battery cell with power wirelessly received from the power supplying unit.

Claims

1. A non-contact power supply apparatus comprising:

a power conversion unit, converting input power into output power; and

a power transmitting coil unit transmitting the output power to a plurality of battery cells in a non-contact manner, respectively,

wherein the power conversion unit adjusts a level of the output power such that a voltage level of power received by at least one battery cell, among the plurality of battery cells, is within a reference voltage range.

2. The non-contact power supply apparatus of claim 1, wherein the power conversion unit adjusts the level of the output power such that among voltage levels respectively received by the plurality of battery cells, one of a minimum voltage level, a maximum voltage level, and an intermediate voltage level, is within the reference voltage range.

3. The non-contact power supply apparatus of claim 1, wherein the plurality of battery cells are provided in a single target charging device.

4. The non-contact power supply apparatus of claim 1, wherein the plurality of battery cells are provided in a plurality of target charging devices.

5. The non-contact power supply apparatus of claim 1, wherein the power conversion unit adjusts the level of the output power in response to power state signals transmitted by a plurality of respective charging units respectively charging the plurality of battery cells.

6. The non-contact power supply apparatus of claim 5, wherein the power conversion unit adjusts the level of the output power, based on a power state signal, provided by a charging unit having a minimum power level, from among the power state signals transmitted by the plurality of respective charging units.

7. The non-contact power supply apparatus of claim 1, wherein the power conversion unit adjusts at least one of a power switching duty and a switching dead time.

8. The non-contact power supply apparatus of claim 1, wherein the power transmitting coil unit includes a plurality of power transmitting coils.

9. A charging apparatus comprising:

a plurality of charging units,

wherein each of the plurality of charging units comprises;

a power receiving coil receiving output power transmitted from a power transmitting side in a non-contact manner;

a rectifying unit rectifying the received output power; and

a controlling unit controlling power charging by converting the rectified power into a charging power having a level appropriate for a corresponding battery cell,

wherein, among the plurality of charging units, at least one charging unit wirelessly transmits power state information to the power transmitting side so that a voltage level of the received output power is within a reference voltage range.

10. The charging apparatus of claim 9, wherein each of the plurality of charging units further comprises a communications unit detecting a state of the received output power and transmitting the power state information to the power transmitting side.

11. The charging apparatus of claim 9, wherein the plurality of charging units are included in a single target charging device.

12. The charging apparatus of claim 9, wherein the charging apparatus is a battery of an electronic device.

13. A battery apparatus comprising:

at least one battery cell group, each including a plurality of battery cells; and

a plurality of charging units, each being coupled to a corresponding one of the plurality of battery cells of the at least one battery cell group in a one-to-one scheme, receiving power transmitted from a power transmitting side in a non-contact manner, and charging a corresponding battery cell with the received power,

wherein, among the plurality of charging units, at least one charging unit wirelessly transmits power state information to the power transmitting side such that a voltage level of the received power is within a reference voltage range.

14. The battery apparatus of claim 13, wherein each of the plurality of charging units comprises:

a power receiving coil receiving the received power;

a rectifying unit rectifying the received power; and

a controlling unit controlling power charging by converting the rectified power into a charging power having a level appropriate for a corresponding battery cell.

15. The battery apparatus of claim 13, wherein the battery cell group is provided as a plurality of battery cell groups connected to one another in parallel.

16. The battery apparatus of claim 13, wherein the battery cell group and the plurality of charging units are included in a single target charging device.