Non-Contact Power Reception Apparatus and Jig for Fabricating Core for Non-Contact Power Reception Apparatus

• US 20110316475A1
• Filed: 12/11/2009
• Published: 12/29/2011
• Est. Priority Date: 12/12/2008
• Status: Active Grant

• Current Assignee: GE Hybrid Technologies, LLC (General Electric Company)
• Original Assignee: Hanrim Postech Co., Ltd.
• Inventors: Jung, Chun-Kil, Kuk, Yoon-Sang
• Granted Patent: US 8,624,546 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H01F 27/2871 Pancake coils
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H01F 41/098 Mandrels; Formers
• 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 50/10 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 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/00304 Overcurrent protection
• CPC Class Codes: H02J 7/00308 Overvoltage protection
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y10T 29/49071 by winding or coiling
• CPC Class Codes: Y10T 29/53265 with work-holder for assembly

Abstract

A non-contact power reception apparatus is provided, in which a power reception coil for a charging system and a loop antenna for an electronic settlement system are mounted on a battery pack and a cover case of a portable terminal such that the power reception coil is arranged in the center thereof and the loop antenna is disposed outside the power reception coil, so that a mode of receiving a wireless power signal and a mode of transmitting and receiving data are selectively performed, thereby preventing interference from harmonic components and enabling non-contact charging and electronic settlement using a single portable terminal. A jig for fabricating a core to be mounted to the non-contact power reception apparatus is provided.

Claims

1. A non-contact power reception apparatus comprising:

a common transmission and reception block selectively performing a mode of receiving a wireless power signal and a mode of transmitting and receiving data;

a rectification block rectifying the power signal received by the common transmission and reception block in the mode of receiving the wireless power signal;

a received-power control block controlling the power signal rectified by the rectification block, a charging control block controlling charging of a battery pack using electric energy of the power signal controlled by the received-power control block; and

a data processing block transmitting and receiving data for electronic settlement with an external electronic device via the common transmission and reception block in the mode of transmitting and receiving data.

2. The non-contact power reception apparatus according to claim 1, wherein the common transmission and reception block includes:

a power reception coil receiving the wireless power signal;

a loop antenna for the transmission and reception of data;

a mode switching unit selecting either one of the power reception coil and the loop antenna and allowing electrical connection to either one of the rectification block and the data processing block; and

a mode control unit detecting a received-voltage of the power reception coil and controlling a switching operation of the mode switching unit.

3. The non-contact power reception apparatus according to claim 2, wherein the mode control unit performs a control operation so that,

if the detected received-voltage is higher than a reference voltage, the mode switching unit performs the switching operation to electrically connect the power reception coil and the rectification block, and

if the detected received-voltage is lower than the reference voltage, the mode switching unit performs the switching operation to electrically connect the loop antenna and the data processing block.

4. The non-contact power reception apparatus according to claim 3, wherein the mode control unit includes a voltage detector for detecting the received-voltage of the power reception coil, comparing the detected received-voltage with the reference voltage and outputting the comparison result.

5. A non-contact power reception apparatus comprising, in a portable terminal:

a common transmission and reception block selectively performing a mode of receiving a wireless power signal and a mode of transmitting and receiving data;

a rectification block rectifying the power signal received by the common transmission and reception block in the mode of receiving the wireless power signal;

a received-power control block controlling the power signal rectified by the rectification block;

a charging control block controlling charging of a battery pack using electric energy of the power signal controlled by the received-power control block; and

a data processing block transmitting and receiving data for electronic settlement with an external electronic device via the common transmission and reception block in the mode of transmitting and receiving data,

wherein the portable terminal includes;

a terminal body capable of performing wireless communication;

a rechargeable battery pack supplying electric energy to the terminal body;

a cover case for protection of the battery pack; and

at least one connector module electrically connecting the respective terminal body, the battery pack and the cover case,

wherein a first connector module of the battery pack is connected with a second connector module of the terminal body, wherein the common transmission and reception block is arranged in the battery pack in such a manner as to be connected with the first connector module of the battery pack and a third connector module of the terminal body, wherein the rectification block, the reception power control block and the charging block are sequentially arranged in the terminal body to extend from the third connector module to the second connector module, and wherein the data processing block is arranged between the third connector module and the received-power control module.

8. The non-contact power reception apparatus according to any one of claims 5 to 7, wherein the common transmission and reception block includes:

a power reception coil receiving the wireless power signal;

a loop antenna for transmission and reception of data;

a mode switching unit selecting any one of the power reception coil and the loop antenna and allowing electrical connection to either one of the rectification block and the data processing block; and

a mode control unit detecting a received-voltage of the power reception coil and controlling a switching operation of the mode switching unit.

9. The non-contact power reception apparatus according to claim 8, wherein the mode control unit performs a control operation so that,

if the detected received-voltage is higher than a reference voltage, the mode switching unit performs the switching operation to electrically connect the power reception coil and the rectification block, and

if the detected received-voltage is lower than the reference voltage, the mode switching unit performs the switching operation to electrically connect the loop antenna and the data processing block.

10. The non-contact power reception apparatus according to claim 9, wherein the mode control unit includes a voltage detector for detecting the received-voltage of the power reception coil, comparing the detected received-voltage with the reference voltage and outputting the comparison result.

6. A non-contact power reception apparatus comprising, in a portable terminal:

a common transmission and reception block selectively performing a mode of receiving a wireless power signal and a mode of transmitting and receiving data;

a rectification block rectifying the power signal received by the common transmission and reception block in the mode of receiving the wireless power signal;

a received-power control block controlling the power signal rectified by the rectification block;

a charging control block controlling charging of a battery pack using electric energy of the power signal controlled by the received-power control block; and

a data processing block transmitting and receiving data for electronic settlement with an external electronic device via the common transmission and reception block in the mode of transmitting and receiving data,

wherein the portable terminal includes;

a terminal body capable of performing wireless communication;

a rechargeable battery pack supplying electric energy to the terminal body;

a cover case for protection of the battery pack; and

at least one connector module electrically connecting the terminal body, the battery pack and the cover case,

wherein a first connector module of the battery pack is connected with a second connector module of the terminal body, wherein the common transmission and reception block is arranged in the cover case in such a manner as to be connected with a fourth connector module of the cover case, the fourth connector module being connected with a third connector of the terminal body, wherein the rectification block, the reception power control block and the charging block are sequentially arranged in the terminal body to extend from the third connector module to a second connector module, and wherein the data processing block is arranged between the third connector module and the received-power control module, the second connector module being connected with a first connector module of the battery pack.

7. The non-contact power reception apparatus according to claim 6, wherein a connector of the fourth connector module, which is connected with the common transmission and reception block arranged in the cover case, is configured in a shape of a leaf spring, and is electrically connected with a connector of the first connector module of the battery pack via a through-hole provided in a cover of the cover case.

11. A jig for fabricating a core for a non-contact power reception apparatus, comprising:

a lower planar disk having a center winding protrusion thereon;

an upper planar disk placed on the lower disk and having at least one slide hole therein; and

at least one guide unit inserted into the slide hole so as to be vertically movable.

12. The jig according to claim 11, wherein the lower disk has a through-hole adjacent to the winding protrusion.

13. The jig according to claim 12, wherein the guide unit has a shape corresponding to a rectangular corner and an inner curved section.

14. A method of fabricating a double-structure core using the jig for a non-contact power reception apparatus according to claim 13, the method comprising:

a) inserting a coil wire into the through-hole of the lower disk from a lower side thereof and drawing the coil wire upwards;

b) winding the drawn coil wire about the winding protrusion to form a first coil;

c) after the completion of formation of the first coil, sliding and lowering a plurality of guide units disposed in the upper disk;

d) winding a coil wire around an outer surface of the guide unit to form a second coil; and

e) separating the first and second coils from a jig for winding a coil.

15. The method according to claim 14, wherein the winding b) comprises:

b-1) winding the coil wire about the winding protrusion to extend the diameter of the first coil; and

b-2) if the diameter of the first coil matches that of an imaginary circle formed by the curved surface of the guide unit, completing formation of the first coil.

16. The method according to claim 15, wherein the winding d) comprises:

d-1) winding the coil wire extending from the first coil about an imaginary rectangle defined by the outer surface of the guide unit to form the second coil; and

d-2) if the size of the second coil matches the size of the lower or upper disk, completing the formation of the second coil.