Valve element assembly and built-in electric control shock absorber comprising same

The invention provides a valve element assembly for a built-in electric control shock absorber and the built-in electric control shock absorber comprising the valve element assembly. The valve element assembly comprises a valve element sheath, an electromagnetic valve assembly, a through-flow assembly and a piston assembly. The through-flow assembly includes a floating piston and a valve body that receives and permits movement thereof in an axial direction. And the opposite thrust of the working fluid filled with the valve core assembly on the floating piston in the axial direction is zero. A fluid channel arranged in the valve body and a circumferential groove of the floating piston form a flow path for working fluid to flow. Axial movement of the floating piston may simultaneously vary the size of the flow cross-section of the flow path at the interface of the valve body and the floating piston. The working fluid flows through the same flow path during both the return stroke and the compression stroke of th