Suspension device for charging and storing batteries

• US 8,508,189 B2
• Filed: 12/02/2010
• Issued: 08/13/2013
• Est. Priority Date: 12/15/2009
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Osswald, Alexander, Glauning, Rainer
• Primary Examiner(s): TSO, EDWARD H
• Application Number:
  US12/959,018
• Publication Number:
  US 20110140654A1
• Time in Patent Office: 985 Days
• Field of Search: 320/103, 320/107, 320/108, 320/114, 320/115
• US Class Current: 320/114
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A handheld power tool charger, having at least one battery contact device is proposed, which is provided for charging at least one nondiscretely positioned handheld power tool battery. According to the invention, the battery contact device has at least one contact region which is embodied as elongated.

Claims

1. A handheld power tool charger comprising:

a suspension device extending in a main extension direction between at least two supports of the handheld power tool charger provided for charging at least one nondiscretely positioned handheld power tool battery suspended from the suspension device; and

a plurality of energy transmission sources electrically isolated from each other and disposed in an elongated manner along the main extension direction of the suspension device in a contact region contacting the battery suspended from the suspension device.

2. The handheld power tool charger as defined by claim 1, wherein the contact region is provided for movably contacting a handheld power tool battery perpendicular to a main extension direction of the contact region.

3. The handheld power tool charger as defined by claim 1, wherein the suspension device is configured to charge at least two handheld power tool batteries simultaneously.

4. The handheld power tool charger as defined by claim 1, further having a voltage converter coupled to the energy transmission sources, which in at least one operating state furnishes an alternating voltage at least for charging handheld power tool batteries.

5. The handheld power tool charger as defined by claim 1, wherein the energy transmission sources transmit charging energy wirelessly.

6. A handheld power tool battery, having a charging interface which is provided for contacting a handheld power tool charger as defined by claim 1.

7. A handheld power tool, having a handheld power tool battery interface, and having a charging interface provided for contacting a handheld power tool battery charger as defined by claim 1.

8. A tool belt comprising:

a handheld power tool battery interface affixed to the tool belt; and

a charging interface contacting the handheld power tool battery charger as defined by claim 1.

9. A system comprising:

the handheld power tool battery charger as defined by claim 1; and

a handheld power tool battery having a charging interface contacting the contacting region of the handheld power tool charger while suspended from the suspension device.

10. The handheld power tool charger as defined by claim 1, wherein:

the suspension device is rod-shaped and includes two parallel-extending contact regions having the energy transmission sources embodied as two metal strips extending along the main extension direction; and

the battery suspended from the suspension device has a concave suspension region with two spring mounted contacts contacting the respective two parallel-extending contact regions when the battery is suspended from the suspension device at the concave suspension region.

11. The handheld power tool charger as defined by claim 1, wherein the battery includes a a hatchet-shaped suspension means that includes the concave suspension region.

12. The handheld power tool charger as defined by claim 1, wherein the suspension device is rod-shaped and the energy transmission sources are embodied as coils transmitting a charging energy wirelessly through the contact region to respective coils of the battery.