wherein each of the plurality of cover assemblies comprises a photovoltaic panel and a substrate configured to support the photovoltaic panel, the photovoltaic panel of each of the plurality of cover assemblies is arranged on an associated substrate, the photovoltaic panel of each of the plurality of cover assemblies is configured to absorb light energy and convert the light energy to electrical energy; any two adjacent cover assemblies of the plurality of cover assemblies are electrically connected to each other; and in a connection direction of the plurality of cover assemblies, a one-end cover assembly of the plurality of cover assemblies is configured to be electrically connected to an energy storage device removably arranged in the tailstock and away from a cockpit of the movable device to charge the energy storage device;

wherein the connection direction of the plurality of cover assemblies is defined as an arrangement direction of the cockpit and the tailstock, and the one-end cover assembly of the plurality of cover assemblies is arranged at an end away from the cockpit, and configured to be electrically connected to the energy storage device, an another-end cover assembly of the plurality of cover assemblies arranged at an end adjacent to the cockpit is configured to be electrically connected to a movable solar panel; one side surface of the substrate of each of the plurality of cover assemblies is provided with an associated photovoltaic panel, and an another side surface of the substrate of each of the plurality of cover assemblies faces away from the associated photovoltaic panel and is provided with an interface electrically connected to the associated photovoltaic panel, the foldable cover plate further comprises at least one first conductor component, an second conductor component, and a third conductor component, two opposite ends of each of the at least one first conductor component are configured to be electrically connected to two associated interfaces of the any two adjacent cover assemblies, respectively; one end of the second conductor component is electrically connected to the interface of the one-end cover assembly, and an another end of the second conductor component is configured to be electrically connected to the energy storage device; one end of the third conductor component is electrically connected to the interface of the another-end cover assembly, an another end of the third conductor component is electrically connected to the movable solar panel;

wherein each of the at least one first conductor component comprises a first conductor and a second conductor, one end of the first conductor is connected to the interface of one of the any two adjacent cover assemblies, an another end of the first conductor is connected to the second conductor, and one end of the second conductor away from the first conductor is connected to the interface of an another one of the any two adjacent cover assemblies;

wherein the second conductor component comprises a third conductor and a fourth conductor, one end of the third conductor is electrically connected to the interface of the one-end cover assembly, an another end of the third conductor is electrically connected to the fourth conductor, and one end of the fourth conductor away from the third conductor is configured to be electrically connected to the energy storage device;

wherein the third conductor component is configured to be electrically connected to the movable solar panel by an electrical connecting line, and the third conductor component is configured to be detachably connected to the electrical connecting line;

wherein the first conductor and the second conductor are removably plugged together by two 50 A anderson plugs; the third conductor component and the electrical connecting line are removably plugged together by two 50 A anderson plugs, and the third conductor and the fourth conductor are removably plugged together by two 50 A anderson plugs; and

wherein the first conductor of each of the at least one first conductor component comprises two cables, and the two cables of the first conductor of each of the at least one first conductor component are connected to positive and negative poles of the interface of the one of the any two adjacent cover assemblies, respectively, the second conductor of each of the at least one first conductor component comprises two cables, and the two cables of the second conductor of each of the at least one first conductor component are connected to positive and negative poles of the interface of the another one of the any two adjacent cover assemblies, respectively, the third conductor of the second conductor component comprises two cables, and the two cables of the third conductor of each of the second conductor component are connected to positive and negative poles of the interface of the one-end cover assembly, respectively, and the third conductor component comprises two cables, and the two cables of the third conductor component are connected to positive and negative poles of the interface of the another-end cover assembly, respectively.