Module maintenance system

• US 10,063,069 B1
• Filed: 05/26/2015
• Issued: 08/28/2018
• Est. Priority Date: 05/23/2014
• Status: Active Grant

• Current Assignee: Artisan Vehicle Systems Inc. (Sandvik AB)
• Original Assignee: Artisan Vehicle Systems Inc. (Sandvik AB)
• Inventors: Huff, Brian R., Kasaba, Mike, Davis, Russell
• Primary Examiner(s): Pacheco, Alexis
• Application Number:
  US14/721,726
• Time in Patent Office: 1,190 Days
• Field of Search: 320104, 320116, 320128, 320134, 320162, 320101, 320107, 320118, 320127, 320136, 320150
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/441 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 2010/4271 Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• CPC Class Codes: H01M 50/271 Lids or covers for the racks or secondary casings
• CPC Class Codes: H01M 50/51 Connection only in series
• CPC Class Codes: H01M 50/522 Inorganic material
• CPC Class Codes: H02J 2310/18 The network being internal to a power source or plant
• CPC Class Codes: H02J 7/0014 Circuits for equalisation of charge between batteries
• CPC Class Codes: H02J 7/0019 using switched or multiplexed charge circuits
• CPC Class Codes: H02J 7/0024 Parallel/serial switching of connection of batteries to charge or load circuit
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A module maintenance system includes a battery module, a charging device, and a rig. The battery module has a series configuration and a parallel configuration. In the parallel configuration, the rig connects each battery cell of the battery module in parallel and the charging device charges each battery cell of the battery module using the rig. In the series configuration, the battery module serially connects each battery cell of the battery module to a first terminal and a second terminal and the charging device charges each battery cell of the battery module using the first terminal and the second terminal.

Claims

1. A module maintenance system comprising:

a battery module comprising an enclosure and at least a first battery cell and a second battery cell, the first and second battery cells being disposed in a cavity of the enclosure;

a rig comprising a lid and a set of buses, the set of buses being attached to the lid;

a charging device for charging the first and second battery cells;

wherein the battery module has a series configuration and a parallel configuration;

wherein, in the series configuration, the lid of the rig is spaced apart from the enclosure and the set of buses of the rig is spaced apart and unattached from the first and second battery cells such that the set of buses of the rig does not couple to the first and second battery cells;

wherein, in the series configuration, one or more bus bars couple the first and second battery cells in series and the charging device modifies charge levels of the first and second battery cells using the one or more bus bars; and

wherein, in the parallel configuration, the lid of the rig attaches to the enclosure of the battery module such that the set of buses of the rig couples to the first and second battery cells and the charging device modifies charge levels of the first and second battery cells using the set of buses.

2. The module maintenance system according to claim 1, wherein the charging device includes an equalization output having a first connector and a second connector;

wherein the set of buses of the rig comprises a first bus and a second bus;

wherein the first battery cell has a first anode and a first cathode and the second battery cell has a second anode and a second cathode; and

wherein, in the parallel configuration, the first bus couples the first connector of the equalization output, the first cathode, and the second cathode and wherein, in the parallel configuration, the second bus couples the second connector of the equalization output to the first anode and the second anode.

3. The module maintenance system according to claim 2, wherein the charging device includes a bulk output having a first connector and a second connector;

wherein the one or more bus bars comprises at least a first bus bar; and

wherein, in the series configuration, the first bus bar couples the first anode and the second cathode, the first cathode is coupled to the first connector of the bulk output, and the second anode is coupled to the second connector of the bulk output.

4. The module maintenance system according to claim 3, wherein the first bus comprises a first set of contact elements extending away from a bottom surface of the lid of the rig and the second bus comprises a second set of contact elements extending away from the bottom surface of the lid of the rig;

wherein, in the parallel configuration, a first cathode contact element of the first set of contact elements is coupled to the first cathode and a second cathode contact element of the first set of contact elements is coupled to the second cathode; and

wherein, in the parallel configuration, a first anode contact element of the second set of contact elements is coupled to the first anode and a second anode contact element of the second set of contact elements is coupled to the second anode.

5. The module maintenance system according to claim 4, wherein, in the parallel configuration, the charging device outputs a first voltage on the equalization output;

wherein, in the series configuration, the charging device outputs a second voltage on the bulk output; and

wherein the second voltage is greater than the first voltage.

6. The module maintenance system according to claim 1, wherein the lid of the rig comprises a top surface, the bottom surface and the top surface being on opposite sides of the lid;

wherein the rig comprises a hand screw disposed on the top surface of the lid; and

wherein the hand screw secures the lid of the rig to the enclosure of the battery module.

7. A module maintenance system comprising:

a battery module comprising at least a first battery cell and a second battery cell;

a rig comprising a set of buses for connecting with the first and second battery cells;

one or more bus bars;

a charging device comprising a bulk output and an equalization output;

wherein the battery module has a series configuration and a parallel configuration;

wherein, in the parallel configuration, the rig is disposed onto the battery module such that the set of buses couples the first and second battery cells in parallel;

wherein, in the parallel configuration, the equalization output is coupled to the set of buses and the charging device outputs a first voltage to the equalization output to equalize charge levels of the first and second battery cells;

wherein, in the series configuration, the one or more bus bars couple the first and second battery cells in series with the bulk output and the charging device outputs a second voltage to the bulk output to modify charge levels of the first and second battery cells;

wherein, in the series configuration, the set of buses of the rig does not couple the first and second battery cells; and

wherein the second voltage is greater than the first voltage.

8. The module maintenance system according to claim 7, wherein, in the series configuration, the charging device is configured to selectively switch between a charging state and a discharging state;

wherein, in the charging state of the charging device, the charging device outputs the second voltage on the bulk output; and

wherein, in the discharging state of the charging device, the charging device switches a discharging circuit to the bulk output for discharging the first battery, the second battery cell, or a combination thereof.

9. The module maintenance system according to claim 8, wherein the discharge circuit includes a resistive element;

and

wherein, in the discharging state of the charging device, the charging device switches the resistive element in series with the first and second battery cells.

10. The module maintenance system according to claim 8, wherein, in the discharging state of the charging device, the charging device transfers energy from the first and second battery cells to an electric grid connection.

11. The module maintenance system according to claim 8, wherein the first battery cell has a first anode and a first cathode and the second battery cell has a second anode and a second cathode;

wherein the one or more bus bars comprises at least a first bus bar; and

wherein, in the series configuration of the battery module the first bus bar couples the first anode and the second cathode, the first cathode is coupled to the first connector of the bulk output, and the second anode is coupled to the second connector of the bulk output.

12. The module maintenance system according to claim 8, wherein, in the discharging state of the charging device, the charging device measures a discharge rate of the first battery cell;

wherein, in the charging state of the charging device, the charging device measures a first charge rate of the first battery cell; and

wherein, in the parallel configuration, the charging device measures a second charge rate of the first battery cell.

13. The module maintenance system according to claim 12, wherein the charging device includes a computing device, the computing device including a data store;

and

wherein the computing device stores the discharge rate, the first charge rate, and the second charge rate in the data store.

14. The module maintenance system according to claim 13, wherein the charging device transmits the discharge rate, the first charge rate, and the second charge rate to a remote data store using one or more networks.

15. A module maintenance system comprising:

a battery module comprising an enclosure and at least a first battery cell and a second battery cell both disposed in a cavity of the enclosure, wherein the first battery cell has a first anode and a second anode, and wherein the second battery cell has a second anode and a second cathode;

a rig comprising a lid, a first bus attached to the lid, and a second bus attached to the lid;

a charging device for charging the first and second battery cells, wherein the charging device comprises a bulk output and an equalization output;

wherein the battery module has a series configuration and a parallel configuration;

wherein, in the series configuration, the lid of the rig is spaced apart from the enclosure and the first bus and the second bus are spaced apart and unattached from the first and second battery cells such that the first bus and the second bus do not couple to the first and second battery cells;

wherein, in the series configuration, one or more bus bars couple the first and second battery cells in series and the charging device modifies charge levels of the first and second battery cells using the one or more bus bars; and

wherein, in the parallel configuration, the lid of the rig attaches to the enclosure of the battery module such that the first bus couples the first connector of the equalization output to the first cathode and the second cathode, and the second bus couples the second connector of the equalization output to the first anode and the second anode and the charging device modifies charge levels of the first and second battery cells using the first bus and the second bus.

16. The module maintenance system according to claim 15, wherein the first bus has a first spine extending along a first longitudinal axis and a first set of contact elements extending perpendicularly from the first spine;

wherein the second bus has a second spine extending along a second longitudinal axis and a second set of contact elements extending perpendicularly from the second spine; and

wherein an insulating layer is disposed between the first bus and the second bus, wherein the insulating layer extends along a third longitudinal axis.

17. The module maintenance system according to claim 16, wherein the bulk output has a first connector and a second connector;

wherein the one or more bus bars comprises at least a first bus bar; and

wherein, in the series configuration, the first bus bar couples the first anode and the second cathode, the first cathode being coupled to the first connector of the bulk output, and the second anode being coupled to the second connector of the bulk output.

18. The module maintenance system according to claim 15, wherein, in the parallel configuration, the charging device outputs a first voltage on the equalization output;

wherein, in the series configuration, the charging device outputs a second voltage on the bulk output; and

wherein the second voltage is greater than the first voltage.

19. The module maintenance system according to claim 15, wherein, in the series configuration, the charging device is configured to selectively switch between a charging state and a discharging state;

wherein, in the charging state of the charging device, the charging device outputs the second voltage on the bulk output; and

wherein, in the discharging state of the charging device, the charging device switches a discharging circuit to the bulk output for discharging the first battery, the second battery cell, or a combination thereof.

20. The module maintenance system according to claim 19, wherein the discharge circuit includes a resistive element;

and

wherein, in the discharging state of the charging device, the charging device switches the resistive element in series with the first and second battery cells.