Discharging test device for full online storage battery
A battery pack and discharge test technology, applied in the direction of battery circuit devices, measuring electricity, collectors, etc., can solve the problems of energy waste, high risk, interruption accidents, etc., and achieve offline discharge operation, wide range of use, flexible and safe use Effect
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Embodiment 1
[0054] see figure 1 As shown, the all-on-line battery pack discharge test equipment in this embodiment includes: a DC-DC host power supply 1, a control unit 2, a safety protection circuit 3, an automatic current-limiting charging and equipotential connection safety control circuit 4, And various circuit modules such as a constant current discharge load intelligent control circuit 5 and a discharge load circuit 6. The control unit 2 further includes an MCU unit 21, and a current / voltage data acquisition and conversion control circuit 22 connected to the MCU unit 21, a battery unit voltage detection device 23, a data memory 24, and a remote communication circuit. 25. LCD display and keyboard input 26.
[0055] The safety protection circuit 3, the automatic current limiting charging and equipotential connection safety control circuit 4 are connected in parallel, and the constant current discharge load intelligent control circuit 5 and the discharge load circuit 6 are connected i...
Embodiment 2
[0070] Such as figure 2 As shown, the all-on-line battery pack discharge test equipment of this embodiment is further improved on the basis of the first embodiment, and its difference from the first embodiment is only: automatic current-limiting charging in parallel and equipotential connection safety control circuit 4 1. On the common points of the output terminals D-1 and D+1 of the safety protection circuit 3, a power output line is drawn respectively, one of the power output lines has a third terminal D, and the other power output line passes through the current detection circuit 8 Connect the second terminal B.
[0071] The input terminals A (positive pole) and B (negative pole) of the all-on-line storage battery pack discharge test equipment in this embodiment are used as the working power supply of the battery pack online test equipment. The output of the third terminal D (negative pole) and the two ends of the second terminal B are connected in series between the bat...
Embodiment 3
[0073] Another example figure 2 As shown, the all-on-line battery pack discharge test equipment of this embodiment is further improved on the basis of Embodiment 1, and its difference from Embodiment 1 is as follows:
[0074] The all-on-line battery pack discharge test equipment of the present embodiment also includes a power supply forward and reverse polarity protection circuit 9, a second safety protection circuit 10, and a positive and negative polarity conversion switch 11; the power supply forward and reverse polarity The output of the work protection circuit 9 is respectively connected with the intelligent control circuit 5 of the constant current discharge load and the DC-DC host operating power supply 1; Current-limiting charging and equipotential connection safety control circuit 4, the output is connected to the second safety protection circuit 10 in parallel, and the second safety protection circuit 10 includes a large-power bidirectional power supply static switc...
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