CHARGING DEVICE, AND PORTABLE ELECTRONIC DEVICE EMPLOYING THE SAME, AND CHARGING SYSTEM

• US 20100264872A1
• Filed: 09/22/2009
• Published: 10/21/2010
• Est. Priority Date: 04/16/2009
• Status: Active Grant

• Current Assignee: Chi Mei Communication Systems Incorporated (Hon Hai Precision Industry Co., Ltd.), Shenzhen Futaihong Precision Industrial Company Limited (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Chi Mei Communication Systems Incorporated (Hon Hai Precision Industry Co., Ltd.), Shenzhen Futaihong Precision Industrial Company Limited (Hon Hai Precision Industry Co., Ltd.)
• Inventors: KWONG, Pao-Lam
• Granted Patent: US 8,350,524 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• 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 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction

Abstract

A charging device for charging a portable electronic device includes a voltage regulating unit and a charger body electrically connected to the voltage regulating unit. The voltage regulating unit is configured for receiving electric energy from an external power source and converting the external power into a stable power. The charger body receives the stable voltage and transfers the electric energy to the portable electronic device via inductive coupling to charge the portable electronic device.

Claims

1. A charging device for charging a portable electronic device, comprising:

a voltage regulating unit configured for converting an external voltage into a stable voltage; and

a charger body electrically connected to the voltage regulating unit, wherein the charger body receives the stable voltage and charges the portable electronic device via inductive coupling.

2. The charging device as claimed in claim 1, wherein the charger body comprises a first magnetic core and a primary coil wrapped on the first magnetic core, the primary coil electrically connected to the voltage regulating unit.

3. The charging device as claimed in claim 2, wherein the charger body further comprises a first shielding portion for isolating electromagnetic waves, the first magnetic core is located in the first shielding portion, and the charging device is attached on the portable electronic device via a magnetic force generated by the first shielding portion.

4. The charging device as claimed in claim 3, wherein the charger body further comprises an insulation layer located between the first magnetic core and the first shielding portion.

5. The charging device as claimed in claim 1, wherein the charger body further comprises a housing, the first shielding portion, the first magnetic core, the insulation layer, the primary coil are located inside the housing, the housing defines a concave section therein, the concave section is used to accommodate one part of the portable electronic device.

6. A portable electronic device, comprising:

a main body;

an electric energy receiving unit mounted in the main body, the electric energy receiving unit configured for receiving electric energy and generating an induced current via inductive coupling;

a current converting unit mounted in the main body and electrically connected to the electric energy receiving unit, the current converting unit configured for converting the induced current into DC, a constant voltage and a constant current; and

a power management unit mounted in the main body and electrically connected to the current converting unit, the power management unit being configured for processing the constant voltage and the constant current, wherein the constant voltage and the constant current are configured for charging a battery and supplying electric energy for the portable electronic device.

7. The portable electronic device as claimed in claim 6, wherein the electric energy receiving unit comprises a secondary coil and a second magnetic core wrapped by the secondary coil, the secondary coil is electrically connected to the current converting unit, and converts an AC into the induced current via the inductive coupling.

8. The portable electronic device as claimed in claim 7, wherein the electric energy receiving unit further comprises a second shielding portion for insolating electromagnetic waves, the second magnetic core is located in the second shielding portion.

9. The portable electronic device as claimed in claim 8, wherein the electric energy receiving unit further comprises an insulation layer located between the second magnetic core and the second shielding portion.

10. The portable electronic device as claimed in claim 6, wherein the main body defines a convex section thereon, the convex section is formed at one end of the main body.

11. A charging system, comprising:

a charging device comprising;

a charger body configured for generating an induced current; and

a portable electronic device comprising;

an electric energy receiving unit configured for receiving electric energy from the charger body via inductive coupling and inducing an induced current to charge a battery.

12. The charging system as claimed in claim 11, wherein the charging device further comprises a voltage regulating unit for receiving electric energy from an external power source and converting the external power into a the stable voltage.

13. The charging system as claimed in claim 12, wherein the charger body further comprises a first magnetic core and a primary coil wrapped on the first magnetic core and electrically connected to the voltage regulating unit, the primary coil is configured for receiving the electric energy from the voltage regulating unit and generating the induced current.

14. The charging system as claimed in claim 13, wherein the charger body further comprises a first shielding portion for insolating electromagnetic waves and an insulation layer mounted in the first shielding portion, the first magnetic core is located in the first shielding portion, the charging device is attached on the portable electronic device via magnetic force generated by the first shielding portion.

15. The charging system as claimed in claim 12, wherein the electric energy receiving unit comprises a secondary coil electrically connected to the current converting unit and a second magnetic core wrapped by the secondary coil, the primary coil is coupled with the secondary coil due to inductive coupling to induce the induced current in the secondary coil.

16. The charging system as claimed in claim 15, wherein the electric energy receiving unit further comprises a second shielding portion for insolating electromagnetic waves and an insulation layer located between the second magnetic core and the second shielding portion, the second magnetic core is located in the second shielding portion.

17. The charging system as claimed in claim 14, wherein the charger body further comprise a housing, the first shielding portion, the first magnetic core, the insulation layer, and the primary coil are located inside the housing, the housing defines a concave section therein.

18. The charging system as claimed in claim 17, wherein the main body defines a convex section thereon, the convex section is formed at one end of the main body, the convex section is use to engage with the concave section to secure the charging device.

19. The charging system as claimed in claim 11, wherein the portable electronic device further comprises a current converting unit electrically connected to the electric energy receiving unit, the current converting unit is configured for converting the induced current into DC, a constant voltage and a constant current.

20. The charging system as claimed in claim 19, wherein the portable electronic device further comprises a power management unit electrically connected to the current converting unit, the power management unit is configured for processing the constant voltage and the constant current to charge the battery.