Photovoltaic connector is a key part for interconnecting components, combiner box, controller and inverter in photovoltaic power generation system. In a photovoltaic power station, cables and connectors must be relied on to gather the electrical energy of a large number of components and enter the inverter. The photovoltaic system is exposed to the wind, sun and extreme temperature changes for a long time, which requires that the connector must be able to adapt to these harsh environments.