Inductive charging unit

• US 9,935,483 B2
• Filed: 12/18/2013
• Issued: 04/03/2018
• Est. Priority Date: 12/21/2012
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Krupezevic, Dragan, Mack, Juergen, Breitenbach, Jan, Lohr, Guenter, Rejman, Marcin
• Primary Examiner(s): Diao, M'Baye
• Application Number:
  US14/653,981
• Publication Number:
  US 20150349576A1
• Time in Patent Office: 1,567 Days
• Field of Search: 320108
• 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: B25H 3/00 Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments containers or packages with special means for dispensing contents B65D83/00; nail dispensers B25C3/00
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries

Abstract

An inductive charging unit is provided, in particular a hand-held power tool inductive charging unit, which is provided for transferring energy in a coupled state with an induction battery, including at least one charging coil and a housing which includes at least one receiving area for accommodating the induction battery in a coupled state. It is provided that the at least one receiving area has at least one recess.

Claims

1. An inductive charging unit for transferring energy in a coupled state with an induction battery, comprising:

at least one charging coil; and

a housing that includes at least one receiving area for accommodating the induction battery in a coupled state, wherein the at least one receiving area includes at least two recesses,

wherein the at least two recesses form, at least in part, a positioning element for positioning the induction battery, wherein the receiving area includes the positioning element,

wherein at least one of the at least two recesses forms a dirt removal element.

2. The inductive charging unit as recited in claim 1, wherein the inductive charging unit is a hand-held power tool inductive charging unit.

3. The inductive charging unit as recited in claim 1, wherein each of the at least two recesses has, at least in part, a shoulder height of at least 0.5 mm.

4. The inductive charging unit as recited in claim 1, wherein the at least one positioning element has an at least partially curved outer contour.

5. The inductive charging unit as recited in claim 1, wherein the at least one positioning element has, at least in part, a shoulder height of at least 0.5 mm.

6. The inductive charging unit as recited in claim 1, wherein the at least one positioning element has, at least in part, a shoulder height of 3 mm maximum.

7. The inductive charging unit as recited in claim 1, wherein the at least one dirt removal element has, at least in part, a channel-shaped design.

8. The inductive charging unit as recited in claim 1, wherein the dirt removal element has a channel-shaped design and is open at a side of the dirt removal element.

9. The inductive charging unit as recited in claim 1, wherein a shoulder height of the dirt removal element is greater with respect to a surface of the housing of the inductive charging unit than with respect to the positioning element.

10. The inductive charging unit as recited in claim 1, wherein the induction battery includes a housing with a positioning element for coupling the induction battery to the receiving area of the inductive charging unit, wherein the positioning element of the induction battery forms a charge interface.

11. The inductive charging unit as recited in claim 1, wherein a diameter of the positioning element of the inductive charging unit corresponds at least approximately to a diagonal length of the positioning element of the induction battery.

12. The inductive charging unit as recited in claim 1, wherein the positioning element of the induction battery has a partially curved outer contour.

13. The inductive charging unit as recited in claim 1, wherein the positioning element of the induction battery is designed as a platform, which rises above an outer surface of the adjoining housing of the induction battery.

14. The inductive charging unit as recited in claim 1, wherein the positioning element of the inductive charging unit is designed as a platform and the positioning element of the induction battery is designed as a recess.

15. The inductive charging unit as recited in claim 1, wherein the inductive charging unit includes a fastening unit with at least one fastening element, which in a coupled state is fixedly mounted on the housing of the inductive charging unit.

16. The inductive charging unit as recited in claim 1, wherein the inductive charging unit includes a fastening unit with at least two fastening elements, which are designed as retaining tabs and which are detachably connected to the housing of the inductive charging unit.

17. The inductive charging unit as recited in claim 1, wherein each fastening element has a first area, which in an installed state extends in parallel to the side of the housing of the inductive charging unit on which the fastening element is situated.

18. The inductive charging unit as recited in claim 17, wherein each fastening element has a further area which extends perpendicularly with respect to the first area and in parallel to the receiving area of the inductive charging unit.

19. A system, comprising:

an inductive charging unit for transferring energy in a coupled state with an induction battery, the charging unit including;

at least one charging coil, and

a housing that includes at least one receiving area for accommodating the induction battery in a coupled state, wherein the at least one receiving area includes at least two recesses, wherein the at least two recesses form, at least in part, a positioning element for positioning the induction battery, wherein the receiving area includes the positioning element; and

at least one induction battery that is inductively chargeable with the aid of the inductive charging unit,

wherein at least one of the at least two recesses forms a dirt removal element.

20. The system as recited in claim 19, wherein the induction battery is a hand-held power tool induction battery.

21. The system as recited in claim 19, wherein the at least one induction battery includes a housing that includes at least one positioning element for coupling to the receiving area of the inductive charging unit in a coupled state.

22. The system as recited in claim 21, wherein the at least one positioning element has, at least in part, a shoulder height of at least 0.5 mm.

23. The system as recited in claim 21, wherein the at least one positioning element has, at least in part, a shoulder height of 3 mm maximum.

24. The system as recited in claim 21, wherein the at least one positioning element has an at least partially curved outer contour.