NON-CONTACT POWER CHARGING SYSTEM AND CONTROL METHOD THEREOF

• US 20130335016A1
• Filed: 08/19/2013
• Published: 12/19/2013
• Est. Priority Date: 02/20/2008
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Spacon Co., Ltd.
• Inventors: JUNG, Chun-Kil
• Granted Patent: US 11,387,677 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/60 responsive to the presence of foreign objects, e.g. detection of living beings
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices

Abstract

A non-contact power charging, in which power transmission can be interrupted when foreign materials are deposited on a charge plate of the non-contact power charging system. A charging operation can be continuously maintained at a stable voltage even if a non-contact power receiving apparatus moves by touching or displacement on the charge plate of the non-contact power charging system in the charging operation. Charging efficiency is improved.

Claims

1. A non-contact power transmitting apparatus comprising:

a primary charge core which generates a magnetic field to wirelessly transmit a power signal to a power receiving apparatus;

a received signal processing module which processes a signal transmitted from the power receiving apparatus and sends the processed signal to a central control unit, the signal including information on a received power of the power receiving apparatus; and

a central control unit which interrupts or suspends charging operation of the non-contract power transmitting apparatus if a loss in the power signal is detected, due to changes of the magnetic field by a foreign substance.

2. The apparatus of claim 1, wherein the central control unit determines the loss based on the information on the received power.

3. The apparatus of claim 1, wherein the central control unit further interrupts or suspends the charging operation based on a temperature in the non-contract power transmitting apparatus.

4. The apparatus of claim 1, further comprising:

a display module which display a foreign substance error.

5. The apparatus of claim 1, wherein when the charging operation is interrupted or suspended, the non-contact power transmitting apparatus remains in a standby mode.

6. The apparatus of claim 5, wherein the non-contact power transmitting apparatus remains in a standby mode until a restarting signal is inputted from a user.

7. A method of controlling a non-contact power transmission apparatus, the method comprising:

generating a magnetic field to wirelessly transmit a power signal to a power receiving apparatus;

processing a signal transmitted from the power receiving apparatus, the signal including information on a received power of the power receiving apparatus; and

interrupting or suspending charging operation of the non-contact power transmission apparatus if a loss in the power signal is detected, due to changes of the magnetic field by a foreign substance.

8. The method of claim 7, further comprising:

determining the loss based on the information on received power.

9. The method of claim 7, wherein the charging operation is further interrupted or suspended based on a temperature in the non-contact power transmission apparatus.

10. The method of claim 7, further comprising:

displaying a foreign substance error.

11. The method of claim 7, wherein when the charging operation is interrupted or suspended, the non-contact power transmitting apparatus remains in a standby mode.

12. The method of claim 11, wherein the non-contact power transmitting apparatus remains in a standby mode until a restarting signal is inputted from a user.