Abstract: A self-balancing scooter and a main frame assembly thereof are provided. The self-balancing scooter includes a first main frame and a cooperated second main frame. The first main frame includes a first connecting portion, the first connecting portion includes a first end surface, the first end surface defines a guide hole, and the guide hole is positioned between a center and an edge of the first end surface. The second main frame includes a second connecting portion, the second connecting portion includes a second end surface corresponding to the first end surface of the first connecting portion, the second end surface defines a conduit, the conduit is positioned between a center and an edge of the second end surface, the conduit is accommodated in the guide hole, and the first connecting portion is assembled and connected to the second connecting portion.

Abstract: A self-balancing scooter and a main frame assembly thereof are provided. The self-balancing scooter includes a first main frame and a cooperated second main frame. The first main frame includes a first connecting portion, the first connecting portion includes a first end surface, the first end surface defines a guide hole, and the guide hole is positioned between a center and an edge of the first end surface. The second main frame includes a second connecting portion, the second connecting portion includes a second end surface corresponding to the first end surface of the first connecting portion, the second end surface defines a conduit, the conduit is positioned between a center and an edge of the second end surface, the conduit is accommodated in the guide hole, and the first connecting portion is assembled and connected to the second connecting portion.

Abstract: A surface light source includes a light emitting unit and an optical plate. The optical plate has a light input surface and a light output surface. A side of the optical plate where the light input surface is located have grooves arranged thereon and spaced from one another. A quantum layer is arranged in each of the grooves and includes a colloid and multiple quantum dot nanostructures dispersed in the colloid. Each the quantum dot nanostructure includes an inner core, a ligand layer, a hydrophobic layer, an encapsulation layer and a barrier layer. The light emitting unit includes light sources respectively arranged in the grooves, and a light emitting surface of each the light source is close to the quantum layer so that at least a part of the light rays emitted from the light source is struck onto the quantum layer.

Abstract: The present application relates to a self-balancing scooter and a main frame assembly thereof. The self-balancing scooter includes a first main frame and a cooperated second main frame. The first main frame includes a first connecting portion, the first connecting portion includes a first end surface, the first end surface defines a guide hole, and the guide hole is positioned between the center and the edge of the first end surface. The second main frame includes a second connecting portion, the second connecting portion includes a second end surface corresponding to the first end surface of the first connecting portion, the second end surface defines a conduit, the conduit is positioned between the center and the edge of the second end surface, the conduit is accommodated in the guide hole when the first connecting portion is assembled and connected to the second connecting portion.