PORTABLE ELECTRONIC DEVICE AND WIRELESS CHARGING DEVICE

• US 20130127408A1
• Filed: 10/19/2012
• Published: 05/23/2013
• Est. Priority Date: 11/18/2011
• Status: Active Grant

• Current Assignee: FIH (Hong Kong) Limited (Hon Hai Precision Industry Co., Ltd.), Shenzhen Futaihong Precision Industrial Company Limited (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Chih-Wei Chang, Guo-Liang Wan
• Inventors: CHANG, CHIH-WEI, WAN, GUO-LIANG
• Granted Patent: US 9,172,268 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• 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 50/402 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 50/90 involving detection or optimisation of position, e.g. alignment

Abstract

A portable electronic device includes a housing and at least one charging module installed in the housing. The at least one charging module includes a magnetic induction block and a coil unit positioned beside the magnetic induction block. The coil unit includes a base block and an induction coil coiled around the base block. The induction coil is configured for generating induction current under the action of a charging magnetic filed outside the housing. The magnetic induction block enhances the magnetic filed intensity acting on the induction coil.

Claims

1. A portable electronic device, comprising:

a housing; and

at least one charging module installed in the housing, each of the at least one charging module comprising a magnetic induction block and a coil unit positioned beside the magnetic induction block;

the coil unit comprising a base block and an induction coil coiled around the base block, the induction coil configured for generating induction current under the action of a charging magnetic filed outside the housing, the magnetic induction block enhancing the magnetic filed intensity acting on the induction coil.

2. The portable electronic device of claim 1, wherein the coil unit further comprises a protective cover sleeved outside the induction coil to protect the induction coil.

3. The portable electronic device of claim 2, wherein the coil unit further comprises two contact pads positioned on the protective cover and configured for electrically connecting the induction coil to a circuit board.

4. The portable electronic device of claim 1, wherein the housing defines at least one receiving chamber corresponding to the at least one charging module, the at least one charging module is received in the at least one receiving chamber with the magnetic induction block aligning with the coil unit and two opposite ends of the magnetic induction block and the coil unit respectively attaching to the housing.

5. The portable electronic device of claim 1, wherein the portable electronic device comprises two charging modules installed in the housing, each charging module comprises a magnetic induction block and a coil unit positioned beside the magnetic induction block;

the coil unit comprises a base block and an induction coil coiled around the base block, the induction coil is configured for generating induction current under the action of a charging magnetic filed outside the housing, the magnetic induction block enhances the magnetic filed intensity acting on the induction coil.

6. The portable electronic device of claim 5, wherein the housing defines two receiving chambers corresponding to the two charging modules, the two receiving chambers are spaced apart by a spacer;

each charging module is received in one of the receiving chambers, one end of each magnetic induction block attaches to the sidewall, another end of each magnetic induction block abuts against one end of its corresponding coil unit, another end of each coil unit attaches to the spacer.

7. A wireless charging device for charging a portable electronic device, comprising:

a charging candle defining a positioning slot configured for positioning the portable electronic device and forming two protruding blocks positioned at two sides of the positioning slot; and

at least one charging coil received in one of the protrusions, the at least one charging coil generating a changing magnetic field for charging the portable electronic device when a changing power supply is applied to the charging coils.

8. The wireless charging device of claim 7, wherein the wireless charging device comprises two charging coils, each charging coil received in one of the protruding blocks.

9. The wireless charging device of claim 8, wherein the two charging coils are selected from one of two coils formed by coiling two separate lines and two coils formed by coiling a line.

10. The wireless charging device of claim 8, wherein the changing power supply is selected from one of an alternating current power supply and a direct current power supply with changing current values.