Non-contact capacitive coupling type power charging apparatus and non-contact capacitive coupling type battery apparatus

• US 9,673,658 B2
• Filed: 02/10/2015
• Issued: 06/06/2017
• Est. Priority Date: 03/06/2014
• Status: Active Grant

• Current Assignee: Wit Co., Ltd.
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: Sung, Jae Suk, Jeong, In Wha, Kim, Hugh
• Primary Examiner(s): Grant, Robert
• Assistant Examiner(s): TRISCHLER, JOHN T
• Application Number:
  US14/618,828
• Publication Number:
  US 20150256022A1
• Time in Patent Office: 847 Days
• Field of Search: 320108, 307104
• 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 50/05 using capacitive coupling
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 7/0014 Circuits for equalisation of charge between batteries
• CPC Class Codes: H02J 7/0018 using separate charge circuits

Abstract

A non-contact type power charging apparatus and a non-contact type battery apparatus may transmit power to each of a plurality of battery cells in a capacitive coupling scheme. The non-contact type power charging apparatus may include a power transmitting apparatus transmitting power in a capacitive coupling scheme, and a power receiving apparatus receiving the power transmitted from the power transmitting apparatus to charge each of a plurality of battery cells with the power. The non-contact type battery apparatus may include a plurality of power receiving electrodes each receiving power transmitted in a capacitive coupling scheme, and a plurality of battery cells each charged with the power transmitted to the plurality of power receiving electrodes.

Claims

1. A non-contact type power charging apparatus having a power receiver receiving power transmitted from a power transmitter that is transmitting the power in a capacitive coupling scheme, and charging at least three battery cells with the power, the power receiver, comprising:

power receiving electrodes receiving the power transmitted from the power transmitter for each corresponding battery cell among the at least three battery cells; and

switches positioned between each battery cell of the at least three battery cells,

wherein the power receiving electrodes correspond to the at least three battery cells in a one-to-one manner to receive power for each corresponding battery cell, and

wherein one end of each of the switches is directly connected to one end of the corresponding battery cell, respectively, and the other end is directly connected to an other end of an adjacent battery cell of the corresponding battery cell or a ground, selectively.

2. The apparatus of claim 1, wherein the power receiving apparatus further comprises:

rectifying units rectifying the power received from the power receiving electrodes, respectively; and

converting units converting the rectified power from the rectifying units into charging power, respectively.

3. The apparatus of claim 1, wherein the power transmitter further comprises:

a power transmitting circuit unit applying the power to a power transmitting electrode; and

the power transmitting electrode transmitting the power applied by the power transmitting circuit unit to the power receiver in the capacitive coupling scheme.

4. A battery apparatus, comprising:

power receiving electrodes each receiving power transmitted in a non-contact type capacitive coupling scheme;

at least three battery cells respectively charged with the power transmitted to the plurality of power receiving electrodes;

switches positioned between respective battery cells of the at least three battery cells;

wherein the power receiving electrodes correspond to the at least three battery cells in a one-to-one manner to receive power for each corresponding battery cell, and

wherein one end of each of the switches is directly connected to one end of the corresponding battery cell, respectively, and the other end is connected to an other end of an adjacent battery cell of the corresponding battery cell or a around, selectively.

5. The battery apparatus of claim 4, further comprising power charging units converting the power received from the power receiving electrodes into charging power to charge each corresponding battery cell with the charging power.

6. The battery apparatus of claim 5, wherein each of the plurality of power charging units comprises:

a rectifying unit rectifying the power received from each of the corresponding power receiving electrodes; and

a converting unit converting the rectified power from each rectifying unit into charging power.