Portable Power Supply

• US 20160099575A1
• Filed: 10/06/2015
• Published: 04/07/2016
• Est. Priority Date: 10/06/2014
• Status: Active Grant

• Current Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Original Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Inventors: Velderman, Matthew J., Cox, John D., Seman, Andrew E. Jr., White, Daniel J.
• Granted Patent: US 10,389,139 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B25F 5/00 Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 3/36 Arrangements for transfer of electric power between ac networks via a high-tension dc link
• CPC Class Codes: H02J 5/00 Circuit arrangements for transfer of electric power between ac networks and dc networks H02J3/36 takes precedence
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/34 Parallel operation in networks using both storage and other dc sources, e.g. providing buffering H02J7/14 takes precedence
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034

Abstract

The present disclosure is directed to a portable power supply system for providing power to corded power tools. The portable power supply is configured to receive AC power through an AC power connector from an AC power source and DC power through a DC power connector from a DC power source. The portable power supply is configured to selectively provide the AC power and the DC power to a power supply output. The AC power and the DC power may be provided simultaneously or alternately to the power supply output.

Claims

1. A portable power supply, comprising:

a direct current (DC) voltage supply input connector configured to receive DC voltage from a DC voltage supply;

an alternating current (AC) voltage supply input connector configured to receive AC voltage from an AC voltage supply;

an output connector configured to couple to an electrical device to provide power to the electrical device;

a voltage controller having a first input coupled to the DC voltage supply input connector and a second input coupled to the AC voltage supply input connector, an output coupled to the output connector, a switch controller, a first switch for connecting and disconnecting the first input to the output, and a second switch connecting and disconnecting the second input to the output, wherein the switch controller selectively closes and opens the first and second switches to connect and disconnect the first and second inputs to the output.

2. A portable power supply, as recited in claim 1, wherein the switch controller alternates between coupling the first input to the output and coupling the second input to the output.

3. A portable power supply, as recited in claim 1, wherein the switch controller simultaneously couples the first input and the second input to the output.

4. A portable power supply, as recited in claim 1, wherein the DC voltage supply input connector comprises an interface configured to electromechanically mate with a battery pack.

5. A portable power supply, as recited in claim 4, wherein the portable power supply interface is substantially identical to a cordless power tool interface configured to electromechanically mate with the battery pack.

6. A portable power supply, comprising:

a housing, the housing comprising (1) an electromechanical interface configured to removably couple with an electromechanical interface of a battery pack wherein the battery pack electromechanical interface is configured to removably couple with an electromechanical interface of a first electrical device, (2) an input configured to receive an alternating current (AC) power source, (3) an output configured to couple to a second electrical device to provide power to the second electrical device;

a voltage controller coupled to the housing electromechanical interface, coupled to the input, and coupled to the output, wherein the voltage controller is configured (1) to couple the input or the electromechanical interface to the output and (2) to couple the input and the electromechanical interface to the output.

7. A portable power supply, as recited in claim 6, further comprising a rectifier coupled to the input.

8. A portable power supply, as recited in claim 6, further comprising an inverter coupled to the housing electromechanical interface.

9. A portable power supply, as recited in claim 6, further comprising a booster coupled to the housing electromechanical interface.

10. A portable power supply, as recited in claim 6, wherein the voltage controller alternates coupling the input and the electromechanical interface to the output during a cycle of an AC power signal received from the AC power source.

11. A portable power supply system, comprising:

a battery pack;

a first electrical device;

a second electrical device; and

a charging and discharging container having a housing with a receptacle, the receptacle configured to removably receive and electrically connect to the battery pack, a power input connector configured to receive input power from an external power supply, a power output connector configured to deliver an output power from the battery pack, wherein the power output connector is electrically coupleable to the first electrical device to power the first electrical device when the battery pack is received in the receptacle, and wherein the battery pack is electrically coupleable to the second electrical device to power the second electrical device when the battery pack is removed from the receptacle.

12. A portable power supply system, as recited in claim 11, further comprising a charging circuit configured to control charging of the battery pack with the input power when the battery pack is received in the receptacle, and a discharging circuit configured to control discharging of output power from the battery pack to the power output connector.

13. A portable power supply system, as recited in claim 11, wherein the power input connector is configured to receive a source of AC input power.

14. A portable power supply system, as recited in claim 11, wherein the power input connector comprises a first connector configured to receive a source of AC input power and a second connector configured to receive a source of DC input power.

15. A portable power supply system, as recited in claim 14, further comprising an inverter circuit configured to convert DC power output from the battery pack to AC power that is delivered to the power output connector.

16. A portable power supply system, as recited in claim 11, wherein the power input connector is configured to receive AC input power and the receptacle is configured to receive DC input power from the battery pack and the received DC input power is combined with the AC input power and the combined DC input power and AC input power is delivered to the power output connector.

17. A portable power supply system, as recited in claim 16, further comprising a switch network configured to selectively connect the DC input power and the AC input power to the power output connector.

18. A portable power supply system, as recited in claim 17, wherein the DC input power and the AC input power are coupled to the power output connector in parallel.

19. A portable power supply system, as recited in claim 17, wherein the DC input power and the AC input power are coupled to the power output connector in series.

20. A portable power supply system, as recited in claim 17, wherein the DC input power and the AC input power are coupled to the power output connector in an alternating manner.

21. A portable power supply system, as recited in claim 17, wherein the DC input power and the AC input power are coupled to the power output connector in a simultaneous manner.

22. A portable power supply system, as recited in claim 16, further comprising a rectifier, wherein the AC input power is coupled to an input of the rectifier and the rectifier outputs rectified AC input power to the power output connector.