Off-grid type photovoltaic energy storage and heating integrated device

The utility model discloses an off-grid photovoltaic energy storage and heating integrated device, and belongs to the field of solar energy. According to the device, an electric heater is arranged ina heat storage water tank; the photovoltaic module is connected with the direct-current combiner box, the output end of the direct-current combiner box is connected with an energy storage battery andan alternating-current distribution box, and the output end of the alternating-current distribution box is connected with the electric heater; the direct-current combiner box, the alternating-currentdistribution box and the energy storage battery are respectively communicated with the photovoltaic energy storage controller through an RS485 interface; the photovoltaic energy storage controller isused for controlling charging and discharging of the energy storage battery; and the heat storage water tank is communicated with the solar heat collector and the fan coil. The photovoltaic energy storage module is additionally