PORTABLE APPARATUS OF EMERGENCY POWER SUPPLY AND BATTERY CHARGER

• US 20090026843A1
• Filed: 12/13/2005
• Published: 01/29/2009
• Est. Priority Date: 11/16/2005
• Status: Active Grant

• Current Assignee: Smart Power Solutions, Inc.
• Original Assignee: Smart Power Solutions, Inc.
• Inventors: Kim, Sang- Min, Noh, Suck, Youn, Dae-Young, Kim, Hyun-June
• Granted Patent: US 7,859,133 B2
• Time in Patent Office: Days
• US Class Current: 307/66
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 9/061 for DC powered loads

Abstract

The present invention relates to a portable apparatus combining a battery charger with an emergency power supply, including: a hand-held body; an AC input section, a battery section; a DC output section; an LED display section; and a control circuit section. Accordingly, the inventive portable apparatus combining a battery charger with an emergency power supply functions as an adapter for supplying electric power to an electronic device and a charger for charging a battery contained therein when being applied with an external power supply, and functions as an emergency power supply for supplying proper electric power to the electric device using a built-in charged battery when being not applied with the external electric power supply.

Claims

1. A portable apparatus of emergency power supply and battery charger comprises:

a hand-held body (600);

an AC input section (100) mounted at one side of the rear surface of the rectangular parallelepiped body (600) for being supplied with AC power supply from the outside;

a battery section (210) formed inside the body (600) for accommodating a battery (200), the battery accommodating section (210) being adapted to charge or discharge the battery accommodated therein using the AC power supply applied thereto from the AC input section (100);

a DC output section (300) for outputting the AC power supply applied thereto from the AC input section (100) or the power supply of the battery discharged from the battery accommodating section (210) to the outside;

an LED display section (400) formed on the front surface of the body (600) for displaying the operating state of the DC output section (300) and the charge state of the battery (200) received in the battery accommodating section (210); and

a control circuit section (500) for converting the AC power supply into DC power supply for application to the DC output section (300) when the AC power supply is applied thereto from the AC input section (100), and for applying the power supply of the battery (200) to DC output section (300) when the AC power supply is not applied thereto from the AC input section (100).

2. The portable apparatus combining a battery charger with an emergency power supply as set forth in claim 1, wherein the control circuit section (500) comprises:

an AC-to-DC converter (510) for converting the AC power supply applied thereto from the AC input section (100) into DC power supply for application to the DC output section (300);

a charge controller for charging the battery (200) with the power supply applied thereto from the AC-to-DC converter (510);

a DC-to-DC converter (530) for applying the power supply of the battery to the DC output section (300); and

a current limit (540) for interrupting the overcurrent of the power supply applied thereto from the AC-to-DC converter (510) and the DC-to-DC converter (530).

3. The portable apparatus combining a battery charger with an emergency power supply as set forth in claim 1, wherein the AC input section (100) is formed of a flip-type plug so that it can be retracted inwardly from the body (600) and received in the body when not being used.

4. The portable apparatus combining a battery charger with an emergency power supply as set forth in claim 1, wherein the battery (200) is an AA or AAA sized battery that is two to four in number.

5. The portable apparatus combining a battery charger with an emergency power supply as set forth in claim 1, wherein the DC output section (300) is a USB connector.

6. The portable apparatus combining a battery charger with an emergency power supply as set forth in claim 1, wherein the LED display section (400) includes a first display portion (410) for displaying the charge state of the battery (200) received in the battery accommodating section (210) and a second display portion (420) for displaying the operating state of the DC output section (300).