Transportation safe battery

Patent metadata

Field	Value
Publication number	US-10707459-B2
Application number	US-201715655261-A
Country	US
Kind code	B2
Filing date	Jul 20, 2017
Priority date	Jul 20, 2017
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

A battery includes a housing, a plurality of battery cells, a first part, and a second part. The plurality of battery cells is disposed in the housing. The first part includes a first contact. The first contact has a first connection to at least one battery cell of the plurality of battery cells. The second part includes a second contact. The second contact has a second connection to at least one battery cell of the plurality of battery cells. The second part is movable to a first position to provide electrical separation between the second contact and the first contact such that the plurality of battery cells is disconnected from each other. In addition, the second part is movable to a second position to provide electrical connection between the second contact and the first contact such that the plurality of battery cells is connected to each other.

First claim

What is claimed is:

1. A battery comprising:
a housing;
a plurality of battery cells disposed in the housing;
a first part with a first contact, the first contact electrically connected to at least one battery cell of the plurality of battery cells; and
a second part with a second contact, the second contact electrically connected to at least one battery cell of the plurality of battery cells;
wherein the second part and second contact are repeatably movable between (a) a first position whereat the second contact and the first contact are physically and electrically separated so as to disconnect the plurality of battery cells and (b) a second position whereat the second contact and the first contact are physically and electrically connected so as to connect the plurality of battery cells together;
wherein the battery is movable between (a) a connected position in which the battery is fully engaged with an electrical device and (b) a disconnected position in which the battery is not fully engaged with the electrical device; and
wherein the battery is configured so that moving the battery between the connected position and the disconnected position causes the second part and second contact to move between the second position and the first position, respectively, such that the plurality of battery cells are connected when the battery is in the connected position and are disconnected when the battery is in the disconnected position;
wherein the second part further comprises a battery terminal via which, in the connected position, the first and second contacts are electrically connected to the electrical device.

2. The battery of claim 1 , wherein the second part includes an electrical connection section that includes at least a positive terminal of the battery and a negative terminal of the battery.

3. The battery of claim 1 , wherein:
when the second part is in the first position, the battery has a low energy capacity; and
when the second part is in the second position, the battery has a high energy capacity, the high energy capacity being greater than the low energy capacity.

4. The battery of claim 1 , wherein the plurality of battery cells are lithium-based battery cells.

5. The battery of claim 1 , wherein:
the plurality of battery cells is organized into at least a first battery module and a second battery module;
the first battery module includes the first connection and at least two battery cells; and
the second battery module includes the second connection and at least two battery cells.

6. The battery of claim 1 , further comprising:
at least one locking member that is configured to establish a locking relationship with a locking member of the electrical device;
wherein, establishing the locking relationship between the locking member of the battery and the locking member of the electrical device causes the battery to move to the connected position, such that the second part is in the second position when the battery establishes a locking relationship with the electrical device.

7. The battery of claim 1 , further comprising:
at least one spring including:
a first end portion operatively engaged with a portion of the first part spaced apart from the first contact; and
a second end portion operatively engaged with a portion of the second part spaced apart from the second contact;

wherein the at least one spring is configured to bias the second part toward the first position.

8. An apparatus comprising:
an electrical device; and
a battery including:
a housing;
a plurality of battery cells disposed in the housing;
a first part with a first contact, the first contact electrically connected to at least one battery cell of the plurality of battery cells; and
a second part with a second contact, the second contact electrically connected to at least one battery cell of the plurality of battery cells;
wherein the second part and second contact are repeatably movable between (a) a first position whereat the second contact and the first contact are physically and electrically separated so as to disconnect the plurality of battery cells and (b) a second position whereat the second contact and the first contact are physically and electrically connected so as to connect the plurality of battery cells together;

wherein the battery is movable between (a) a connected position in which the battery is fully engaged with the electrical device and (b) a disconnected position in which the battery is not fully engaged with the electrical device; and
wherein the battery is configured so that moving the battery between the connected position and the disconnected position causes the second part and second contact to move between the second position and the first position, respectively, such that the plurality of battery cells are connected when the battery is in the connected position and are disconnected when the battery is in the disconnected position;
wherein the second part further comprises a battery terminal via which, in the connected position, the first and second contacts are electrically connected to the electrical device.

9. The apparatus of claim 8 , wherein:
the second part includes an electrical connection section that includes at least a positive terminal of the battery and a negative terminal of the battery;
the electrical connection section of the second part is configured to electrically connect to an electrical connection section of the electrical device.

10. The apparatus of claim 8 , wherein:
when the second part is in the first position, the battery has a low energy capacity; and
when the second part is in the second position, the battery has a high energy capacity, the high energy capacity being greater than the low energy capacity.

11. The apparatus of claim 8 , wherein the plurality of battery cells are lithium-based battery cells.

12. The apparatus of claim 8 , wherein:
the plurality of battery cells is organized into at least a first battery module and a second battery module;
the first battery module includes the first connection and at least two battery cells; and
the second battery module includes the second connection and at least two battery cells.

13. The apparatus of claim 8 , further comprising:
at least one locking member that is configured to establish a locking relationship with a locking member of the electrical device;
wherein establishing the locking relationship between the locking member of the battery and the locking member of the electrical device causes the battery to move to the connected position, such that the second part is in the second position when the battery establishes a locking relationship with the electrical device.

14. The apparatus of claim 8 , wherein the electrical device is a battery-powered device or a battery charger.

15. The apparatus of claim 8 , wherein the battery further includes:
at least one spring having:
a first end portion operatively engaged with a portion of the first part spaced apart from the first contact; and
a second end portion operatively engaged with a portion of the second part spaced apart from the second contact;

wherein the at least one spring is configured to bias the second part toward the first position.

16. The apparatus of claim 8 , wherein the housing includes an interface side from which the first and second parts project, and the second part moves laterally across the interface side when moved between the first and second positons.

17. A battery comprising:
a housing;
a plurality of battery cells disposed in the housing;
a first

Assignees

• Bosch Tool Corp
• Bosch Gmbh Robert

Inventors

• Marinov Plamen

Classifications

• B25F5/024 Primary

  as part of an auxiliary handle · CPC title

• H01M50/269

  Mechanical means for varying the arrangement of batteries or cells for different uses, e.g. for changing the number of batteries or for switching between series and parallel wiring (methods or arrangements for servicing or maintenance H01M6/50, H01M10/42) · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• H01M50/296

  characterised by terminals of battery packs (terminals of batteries H01M50/543) · CPC title

• H01M50/244

  Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method · CPC title