Hand-held power tool rechargeable battery having molded housing projection

• US 9,721,723 B2
• Filed: 12/18/2013
• Issued: 08/01/2017
• Est. Priority Date: 12/21/2012
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Lohr, Guenter, Krupezevic, Dragan, Mack, Juergen, Rejman, Marcin, Breitenbach, Jan
• Primary Examiner(s): Tso, Edward
• Application Number:
  US14/654,169
• Publication Number:
  US 20150318734A1
• Time in Patent Office: 1,322 Days
• Field of Search: 320107, 320108, 320114, 320115, 307104, 429 96, 429 99, 429100, D13103, D13104
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 50/213 adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: H01M 50/247 specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• 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
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A hand-held power tool rechargeable battery is provided, including at least one rechargeable battery housing, at least one rechargeable battery cell and at least one inductive charging unit, which includes at least one inductive charging coil for charging the at least one rechargeable battery cell. It is provided that the rechargeable battery housing has at least one molded housing projection, which is delimited at least partially by an area of an inductive charging side of the rechargeable battery housing.

Claims

1. A hand-held power tool rechargeable battery, comprising:

at least one rechargeable battery housing;

at least one rechargeable battery cell; and

at least one inductive charging unit that includes at least one inductive charging coil for charging the at least one rechargeable battery cell, wherein the rechargeable battery housing includes at least two molded housing projections that are delimited at least partially by an area of an inductive charging side of the rechargeable battery housing, wherein a first molded housing projection fastens in a direction parallel to a winding axis of the inductive charging coil, and a second molded housing projection fastens in at least one direction perpendicular to the winding axis of the inductive charging coil.

2. The hand-held power tool rechargeable battery as recited in claim 1, wherein the molded housing projection fastens to an inductive charging device.

3. The hand-held power tool rechargeable battery as recited in claim 1, wherein the rechargeable battery housing includes the first molded housing projection and the second molded housing projection.

4. The hand-held power tool rechargeable battery as recited in claim 1, wherein the inductive charging coil is situated at least partially within the first molded housing projection.

5. The hand-held power tool rechargeable battery as recited in claim 1, wherein the first molded housing projection includes at least one first fastening area and one second fastening area, the first and second fastening areas being situated on opposite sides of an inductive charging side of the rechargeable battery housing.

6. The hand-held power tool rechargeable battery as recited in claim 5, wherein at least one of the first fastening area and the second fastening area is designed as a receiving shoulder.

7. The hand-held power tool rechargeable battery as recited in claim 1, wherein the second molded housing projection positions at least the inductive charging coil for a charging.

8. The hand-held power tool rechargeable battery as recited in claim 1, wherein the second molded housing projection includes at least one form-locking surface that extends at least essentially along a lateral surface.

9. The hand-held power tool rechargeable battery as recited in claim 1, wherein the second molded housing projection includes at least one foreign body receiving recess that reduces an induction charging space.

10. A system, comprising:

an inductive charging device; and

a hand-held power tool rechargeable battery, including;

at least one rechargeable battery housing;

at least one rechargeable battery cell; and

at least one inductive charging unit that includes at least one inductive charging coil for charging the at least one rechargeable battery cell, wherein the rechargeable battery housing includes at least two molded housing projections that are delimited at least partially by an area of an inductive charging side of the rechargeable battery housing, wherein a first molded housing projection fastens in a direction parallel to a winding axis of the inductive charging coil, and a second molded housing projection fastens in at least one direction perpendicular to the winding axis of the inductive charging coil.

11. The system as recited in claim 10, wherein the inductive charging device includes at least one fastening arrangement for fastening the molded housing projection of the hand-held power tool rechargeable battery at least one of in a force-locking manner and a form-locking manner.

12. The system as recited in claim 10, wherein the inductive charging device includes at least one fastening arrangement for positioning the hand-held power tool rechargeable battery for the charging with the aid of the molded housing projection.

13. The system as recited in claim 12, wherein the molded housing projection of the hand-held power tool rechargeable battery and the second fastening arrangement of the inductive charging device have basic shapes which differ from one another.

14. A hand-held power tool rechargeable battery, comprising:

at least one rechargeable battery housing;

at least one rechargeable battery cell; and

at least one inductive charging unit that includes at least one inductive charging coil for charging the at least one rechargeable battery cell, wherein the rechargeable battery housing includes at least one molded housing projection that is delimited at least partially by an area of an inductive charging side of the rechargeable battery housing,

wherein the molded housing projection is one of;

a first molded housing projection that fastens in a direction parallel to a winding axis of the inductive charging coil, and

a second molded housing projection that is fastens in at least one direction perpendicular to the winding axis of the inductive charging coil,

wherein the second molded housing projection includes at least one foreign body receiving recess that reduces an induction charging space.