Electric device

• US 20030011245A1
• Filed: 08/20/2002
• Published: 01/16/2003
• Est. Priority Date: 03/28/2000
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Fiebig, Arnim
• Application Number:
  US10/204,372
• Publication Number:
  US 20030011245A1
• Time in Patent Office: Days
• US Class Current: 307/48
• 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 2310/22 The load being a portable electronic device
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• 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

Abstract

The invention is based on an electrical device, in particular a power tool, having a connection point (10) to which at least one power supply unit (12) can be coupled.

It is proposed that via an information connection (14) at least from the connection point (10), information can be forward to the power supply unit (12), and the information can be utilized in a unit (16) in the power supply unit (12).

Claims

1. An electrical device, in particular a power tool, having a connection point (10) to which at least one power supply unit (12) can be coupled, characterized in that via an information connection (14) at least from the connection point (10), information can be forward to the power supply unit (12), and the information can be utilized in a unit (16) in the power supply unit (12).

2. The electrical device of claim 1, characterized in that via the information connection (14), the voltage and/or current intensity picked up from the power supply unit (12) can be adjusted.

3. The electrical device of claim 1 or 2,

characterized in that via the information connection (14), information for avoiding an overload can be forwarded.

4. The electrical device of claim 3, characterized in that via the information connection (14), temperature parameters can be forwarded.

5. The electrical device of one of the foregoing claims, characterized in that the connection point (10) and the power supply unit (12) each have at least one contact point (18, 20, 22, 24), which upon coupling of the power supply unit (12) are mechanically connectable and by way of which the information can be forwarded.

6. A power supply unit, having at least one connection point (26) for coupling to an electrical device, in particular to a power tool, characterized in that via an information connection (14) at least via the connection point (26), information can be forward to the power supply unit (12), and the information can be utilized in a unit (16).

7. The power supply unit of claim 6, characterized in that via the information connection (14), the voltage and/or current intensity picked up via the connection point (26) can be adjusted.

8. The power supply unit of claim 6 or 7,

characterized in that via the information connection (14), information for avoiding an overload of the electrical device can be forwarded.

9. The power supply unit of one of claims 6-8,

characterized in that a battery (28, 30, 32) for charging can be operatively connected to the connection point (26) or to a second connection point.

10. A battery charger of an electrical device, in particular of a power tool, which can be selectively supplied with current via a coupleable battery (28, 30, 32) or via a coupleable power supply unit (12), characterized in that the power supply unit (12) and the battery (28, 30, 32) are connectable via an adapter (34, 36), and from the adapter (34, 36) via an information connection, information can be forwarded to the power supply unit (12), and the information can be utilized in a unit (16) in the power supply unit (12).

11. The battery charger of claim 10, characterized in that a regulating unit (38) is integrated with the adapter (34, 36).

12. The battery charger of claim 10 or 11,

characterized in that the adapter (34, 36) has at least two connection points (40, 42, 44) for simultaneously charging two batteries (28, 30, 32).

13. The battery charger of one of claims 10-12,

characterized in that the adapter (34, 36) has one connection point (46), via which the adapter (34, 36) can be supplied with current via a cigarette lighter of a motor vehicle.

14. The battery charger of one of claims 10-13,

characterized in that the adaptor (36) is integrated in a case (48) of the electrical device.

15. The battery charger of claim 14, characterized in that the adapter (36) is embodied at least partly integrally with the case (48) of the electrical device.