Battery thermal runaway monitor

Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

320 48, 328132, 340636, 361 98, H02J 700, H02H 308

Patent

active

041140834

ABSTRACT:
A device for determining a thermal runaway condition in a nickel-cadmium tery. A current sensor develops a DC voltage proportional to battery current and a converter converts the voltage to a pulse train whose frequency is directly proportional to battery current. The pulse train frequency is monitored for fixed periods of time and changes of frequencies are used to determine the slope of the charge current. A maximum allowable slope is specified and fed into a binary up/down counter which also counts the pulse train frequency. When the difference between two pulse train frequency readings is greater than the maximum allowable, a possible thermal runaway condition is indicated and after a predetermined number of consecutive indications, an indicator is energized to provide a warning.

REFERENCES:
patent: 3017570 (1962-01-01), Floyd
patent: 3116451 (1963-12-01), Hatterschide
patent: 3230452 (1966-01-01), Angello
patent: 3500167 (1970-03-01), Applegate et al.
patent: 3703675 (1972-11-01), Alric et al.
patent: 3889172 (1975-06-01), Lelaidier et al.
patent: 3899732 (1975-08-01), Staby
patent: 3900785 (1975-08-01), Alric et al.
patent: 3940679 (1976-02-01), Brandwein et al.
patent: 4041404 (1977-08-01), Lewis, Jr.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Battery thermal runaway monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Battery thermal runaway monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery thermal runaway monitor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2386245

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.