ACCUMULATOR BATTERY HEATING CIRCUIT Russian patent published in 2014 - IPC H01M10/42 

FIELD: electricity.

SUBSTANCE: invention relates to accumulator batteries. Present invention provides for a heating circuit for an accumulator battery comprising switching units, a switching control module, a damping element R1, an energy accumulation circuit and a polarity inversion unit; the energy accumulation circuit is connected with the accumulator battery and includes a current accumulation element L1 and charge accumulation elements C1, the charge accumulation elements C1 are connected to the switching units in series with exact matching to form branches, the branches are interconnected in parallel and then in series with the current accumulation element L1 and the damping element R1, the switching control module is connected to the switching units and is able of controlling the activation/deactivation of switching units so that energy flows to one side and the other side between the accumulator battery and the energy accumulation circuit at the activation of the switching units, the polarity inversion unit is connected to the energy accumulation circuit and is able of changing the direction of polarity of voltage at the charge accumulation elements C1 after the switching units are switched from the "ON" position into the "OFF" position.

EFFECT: improved efficiency of charging/discharging of an accumulator battery as well as increased safety and operability in the course of accumulator battery heating.

12 cl, 14 dwg