Battery test module

• US 20030124417A1
• Filed: 12/05/2002
• Published: 07/03/2003
• Est. Priority Date: 04/08/1999
• Status: Active Grant

• Current Assignee: Midtronics Incorporated
• Original Assignee: Midtronics Incorporated
• Inventors: Bertness, Kevin I., Butteris, Jamey L., Fritsch, Michael J.
• Granted Patent: US 7,039,533 B2
• Time in Patent Office: Days
• US Class Current: 429/90
• CPC Class Codes: G01R 31/3648 comprising digital calculation means, e.g. for performing an algorithm
• CPC Class Codes: G01R 31/374 with means for correcting the measurement for temperature or ageing
• CPC Class Codes: G01R 31/379 for lead-acid batteries
• CPC Class Codes: G01R 31/385 Arrangements for measuring battery or accumulator variables for monitoring G01R31/382
• CPC Class Codes: G01R 35/005 Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references G01R33/0035, G01R35/002 take precedence
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 6/5044 Cells or batteries structurally combined with cell condition indicating means
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A storage battery includes a battery housing and a plurality of electrochemical cells in the battery housing electrically connected to terminals of the battery. A battery test module is mounted to the battery housing and electrically coupled to the terminals through Kelvin connections. A display or other output is configured to output battery condition information from the battery test module. Battery post extensions couple the battery test module to terminals of the battery.

Claims

1. A storage battery comprising:

a battery housing supporting a positive post of the battery and a negative post of the battery;

at least one electrochemical cell in the battery housing electrically connected between to the positive post of the battery and the negative post of the battery;

a first post extension coupled to the positive post of the battery;

a second post extension coupled to the negative post of the battery;

a battery test module coupled to the first and second post extensions to form a first Kelvin connection between the battery test module and the first post extension and a second Kelvin connection between the battery test module and the second post extension; and

an output from the battery test module configured to output battery condition information.

2. The storage battery of claim 1 wherein the first post extension is formed integral with the positive post and the second post extension is formed integral with the negative post.

3. The storage battery of claim 1 wherein the first post extension and the second post extension are formed separate from the positive and negative battery posts, and wherein a proximal end of the first post extension is configured to fit onto the positive post and a proximal end of the second post extension is configured to fit onto the negative post.

4. The storage battery of claim 3 wherein the proximal end of the first post extension including a first ring configured to fit onto the positive post, and wherein the proximal end of the second post extension including a second ring configured to fit onto the negative post.

5. The storage battery of claim 1 wherein a distal portion of the first post extension including a first raised member and a distal portion of the second post extension including a second raised member, and wherein each the first raised member and the second raised member are configured to fit into a corresponding grooves in the battery test module.

6. The storage battery of claim 5 wherein the first raised member and the second raised member are configured to be melted and cooled to provide secure coupling between the battery test module and the first and second post extensions after the first raised member and the second raised member are fit into the corresponding grooves.

7. The storage battery of claim 1 wherein the first post extension and the second post extension are recessed in the battery housing.

8. The storage battery of claim 1 wherein the first post extension and the second post extension are external to the battery housing.

9. The storage battery of claim 1 wherein a proximal end of each of the first post extension and the second post extension comprises copper, and wherein a distal portion of each of the first post extension and the second post extension comprises lead.

10. The storage battery of claim 1 wherein a proximal end of each of the first post extension and the second post extension comprises brass, and wherein a distal portion of each of the first post extension and the second post extension comprises lead.

11. The storage battery of claim 1 wherein a distal portion of each of the first post extension and the second post extension comprises a single plate member.

12. The storage battery of claim 1 wherein a distal portion of each of the first post extension and the second post extension comprises a pair of arms.

13. The storage battery of claim 1 wherein the battery test module comprises a first pair of contact pads that electrically couple to a distal portion of the first post extension and a second pair of contact pads that electrically couple to a distal portion of the second post extension.

14. The storage battery of claim 1 further comprising a plurality of fasteners attached to the battery housing and extending in an upward direction from the battery housing, wherein each fastener of the plurality of fasteners is configured to fit into corresponding grooves in the battery test module.

15. The storage battery of claim 14 wherein each fastener of the plurality of fasteners includes a screw standoff configured to receive a screw.

16. The storage battery of claim 14 wherein each fastener of the plurality of fasteners is a snap tab.

17. The storage battery of claim 14 wherein each fastener of the plurality of fasteners is a melt cap.

18. The storage battery of claim 17 wherein an extended portion of the melt cap is configured to be melted and cooled to provide secure coupling between the battery housing and the battery test module when the melt cap is fit into a groove of the corresponding grooves.

19. The storage battery of claim 1 wherein the first post extension and the second post extension are formed integral with the battery test module and configured to couple to the positive post and the negative post.

20. A apparatus for testing a storage battery, comprising:

a first Kelvin connection coupled to a first post extension that couples to a positive post of the battery;

a second Kelvin connection coupled to a second post extension that couples at a negative post of the battery;

a battery test module affixed to a battery housing of the storage battery and electrically coupled to the first and second post extensions through the respective first and second Kelvin connections; and

an output from the battery test module configured to output battery condition information.

21. The storage battery of claim 20 wherein the first post extension and the second post extension are recessed in the battery housing.

22. The storage battery of claim 20 wherein the first post extension and the second post extension are formed separate from the positive and negative battery posts, and wherein a proximal end of the first post extension is configured to fit onto the positive post and a proximal end of the second post extension is configured to fit onto the negative post.

23. An auxiliary power system, comprising:

an auxiliary battery having a positive post and a negative post;

a first post extension coupled to the positive post of the auxiliary battery;

a second post extension coupled to the negative post of the auxiliary battery;

a battery test module electrically coupled to the auxiliary battery through the positive post extension and the negative post extension and configured to perform a battery test on the auxiliary battery and responsively provide a battery test output; and

an output configured to output results of the battery test output.