Vehicle-mounted shunt-wound storage battery pack monitoring apparatus
A battery pack and monitoring device technology, applied in battery circuit devices, circuit devices, secondary batteries, etc., can solve problems such as the increase in the number of battery cells, the inability to monitor and manage battery cells, the safety of power systems, and the hidden dangers of reliability. , to achieve the effect of a wide range of monitoring
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[0023] Examples:
[0024] Such as figure 1 As shown, the battery pack is formed by connecting two parallel battery modules 102 in series, and each parallel battery module 102 is formed by connecting 6 battery cells in parallel. The battery cell size given in the example is a cylindrical ternary material battery of 18650 type. After the positive electrode of each battery cell in the parallel battery module 102 is connected in series with a shunt resistor 130 with a known resistance value, the positive electrode is connected together through the positive current collecting plate, and the negative electrode is directly connected through the current collecting plate. According to the requirements of the system design, only the pole temperatures of the two battery cells are measured, and in some embodiments, there may be more measurement temperature points. The measuring gating unit is used for gating to measure the temperature at each temperature point or the voltage across the shun...
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