Connector assembly with pivotable operating element

A connector assembly, comprising:

• a board end connector including a base and an extending tube body, wherein the extending tube body is disposed on the base and has a protrusion being laterally formed;
• a wire end connector including:
• a main body sleeved on the extending tube body and having a shell, wherein the shell has an inner guide groove and a side opening, the inner guide groove is formed on an inner side of the shell, and the side opening has a pivoting area and an operating area;
• and
• a wire connecting portion extending outward from the main body;
• and
• an operating element pivotally arranged on the wire end connector and capable of switching between a locked position and an unlocked position, wherein the operating element includes a pivoting portion, a first extension arm and a second extension arm, the pivoting portion is disposed at the pivoting area, and the first extension arm and the second extension arm are disposed at the operating area and jointly define an accommodating space,
• wherein when the board end connector and the wire end connector are in an initial state and the operating element is in the unlocked position, the second extension arm is away from the inner guide groove to allow the protrusion to enter the accommodating space, and wherein when the board end connector and the wire end connector are switched from the initial state to a mating state, the protrusion contacts the first extension arm, so that the operating element is rotated from the unlocking position to the locking position about the pivoting portion.