Heavy-Duty Hand-Held Power Tool

• US 20160036089A1
• Filed: 07/31/2015
• Published: 02/04/2016
• Est. Priority Date: 07/31/2014
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Lutz, Manfred, Esenwein, Florian, Stock, Joern, Maute, Joerg, Schadow, Joachim, Barth, Daniel, Boeck, Cornelius
• Application Number:
  US14/815,128
• Publication Number:
  US 20160036089A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B24B 23/028 Angle tools
• 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: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 12/08 composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A heavy-duty hand-held power tool appliance includes at least one electric motor configured to drive a working tool and an energy storage unit configured to supply electricity to the at least one electric motor.

Claims

1. A heavy-duty hand-held power tool appliance, comprising:

at least one electric motor configured to drive a working tool; and

an energy storage unit configured to supply electricity to the at least one electric motor.

2. The heavy-duty hand-held power tool appliance according to claim 1, wherein the energy storage unit includes at least one lithium-air cell.

3. The heavy-duty hand-held power tool appliance according to claim 1, wherein the energy storage unit includes at least one lithium-sulfur cell.

4. The heavy-duty hand-held power tool appliance according to claim 1, wherein the at least one electric motor has an output power of at least 1,400 W.

5. The heavy-duty hand-held power tool appliance according to claim 1, wherein the energy storage unit has a mass-energy density of at least 350 Wh/kg.

6. The heavy-duty hand-held power tool appliance according to claim 1, wherein the energy storage unit has a volume-energy density of at least 700 Wh/l.

7. The heavy-duty hand-held power tool appliance according to claim 1, wherein the energy storage unit has an energy quantity of at least 270 Wh.

8. The heavy-duty hand-held power tool appliance according to claim 1, wherein the heavy-duty hand-held power tool appliance has a total weight of less than 5.5 kg.

9. The heavy-duty hand-held power tool appliance according to claim 1, further comprising an angle-grinding unit that includes a tool carrier shaft that, in at least one operating state, is configured to be connected in a rotationally fixed manner to the working tool.

10. An energy storage unit of a heavy-duty hand-held power tool appliance, wherein the energy storage unit is configured to supply electrical energy to at least one electric motor of the heavy-duty hand-help power tool applicant which is configured to drive a working tool.