Backlight module and connecting device thereof

A backlight module, comprising a first component, a second component and a connecting device for connecting the first component with the second component, the first component being formed with a first through-hole, the second component being formed with a second through-hole, the connecting device being made of plastic, and the connecting device comprising:

• a first connecting element, comprising a stopping portion and at least two elastic cantilevers disposed at two ends of the stopping portion, a via hole being formed in the stopping portion between the two elastic cantilevers, each of the elastic cantilevers comprising a snap-fit portion, a fixed end connected with the stopping portion and a free end, and a distance between the fixed ends of the two elastic cantilevers being smaller than a distance between the free ends of the two elastic cantilevers;
• and
• a second connecting element, comprising an abutting portion and a push-pull portion perpendicularly connected with the abutting portion, positioning rings being disposed at both ends of the abutting portion respectively;
• the push-pull portion of the second connecting element being inserted through the via hole of the first connecting element, the elastic cantilevers being inserted into the positioning rings respectively, and the first connecting element and the second connecting element assembled together being inserted through the first through-hole and the second through-hole with the first component abutting against the stopping portion and the second component being snap-fitted with the snap-fit portion;
• wherein the at least two elastic cantilevers extend along a first linear direction, the push-pull portion extends along a second linear direction opposite to the first linear direction, when the second connecting element is assembled with the first connecting element, pulling of the push-pull portion allows the second connecting element to move closer relative to the first connecting element in the second linear direction;
• during the process of detaching the first connecting element from the second connecting element, the push-pull portion is pushed, thereby the second connecting element moves apart relative to the first connecting element in the firs linear direction.