POWER ADAPTER FOR CORDLESS POWER TOOLS

• US 20170179742A1
• Filed: 03/08/2017
• Published: 06/22/2017
• Est. Priority Date: 03/19/2012
• Status: Active Grant

• Current Assignee: Husqvarna AB (HUSQVARNA)
• Original Assignee: Husqvarna AB (HUSQVARNA)
• Inventors: Rief, Joachim, Mnch, Corinna, Laible, Fritz, Rudolf, Peter, Zeller, Tobias
• Granted Patent: US 10,892,626 B2
• Time in Patent Office: Days
• CPC Class Codes: B25F 5/02 Construction of casings, bodies or handles B25F5/006, B25F5/008 take precedence
• CPC Class Codes: H01M 10/488 Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
• CPC Class Codes: H01M 50/20 Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders structural combination of accumulators with charging apparatus H01M10/46
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

The present application is directed in particular to a power adapter, adapted to be connected on the one hand to a power interface of a cordless power tool and adapted to be connected on the other hand to an energy source, in particular mobile energy source, for electrically power the power tool via the power adapter.

Claims

1. Energy source and power tool combination comprising a power tool, the combination comprising:

a backpack battery assembly;

a power adapter; and

an electrical cable interconnecting the backpack battery assembly and the power adapter,

wherein the power adapter is configured to be connected to the power tool.

2. Combination according to claim 1, wherein the combination further comprises a rechargeable battery pack with the design and dimensions corresponding to a housing of the power adapter.

3. Combination according to claim 2, wherein the power adapter comprises a removable balance weight providing the ordinary weight distribution of the rechargeable battery pack.

4. Combination according to claim 1, wherein the combination further comprises an electrical connector disposed between the rechargeable battery pack and the power adapter.

5. Combination according to claim 4, wherein the electrical connector is configured to connect an electrical cable of the power adapter to an electrical cable of the backpack battery assembly.

6. Combination according to claim 1, wherein the power adapter comprises a display unit configured to display a charging condition and/or other parameter of the energy source.

7. Combination according to claim 1, wherein the combination further comprises a charging device, wherein the power adapter is connectable to the charging device for charging the backpack battery assembly.

8. Combination according to claim 1, wherein a housing of the power adapter comprises air vents allowing a flow of air through the housing for cooling the power tool.

9. Combination according to claim 1, wherein the power tool is a tool in a group consisting of hedge trimmers, clearing saws, chain saws, brush cutters, trimmers, and blowers.