Photovoltaic microgrid energy storage device

The utility model provides a photovoltaic micro-grid energy storage device, the inner side end of a protection box is fixedly provided with a conical pipe corresponding to the side end of each ventilation opening, the outer side end of the protection box is provided with a first dustproof mechanism close to the ventilation opening, and a plurality of limiting assemblies are arranged at the side ends of the dustproof assemblies. Through the arrangement of the ventilation opening and the conical pipe, when the heat dissipation mechanism sucks air into the energy storage box through the ventilation opening, the air passes through a small opening of the conical pipe, the air pressure is increased, the temperature is reduced, and after the air enters the energy storage box through the small opening of the conical pipe, the air pressure is increased, and the temperature is reduced. And the cooled cold air can dissipate and cool the heat generated by the energy storage battery, so that when the exhaust fan exhausts