Car seat headrest mounting structure

A headrest apparatus for vehicle seats, comprising coupling holders (40) coupled to a seat main body (10) of a vehicle, a support (30) coupled to an upper portion of the seat main body (10) so as to be raised and lowered through the coupling holders (40), a headrest (20) coupled to an upper portion of the support (30), and an actuating unit provided in the headrest (20) and connected to a power supply unit of the vehicle via power lines to perform a predetermined function, wherein the headrest apparatus further comprises:

• a connector body (100) mounted outside any one of the coupling holders (40), and configured to have guide rails (101) that extend from the connector body (100) in an ascending and descending direction of the support (30);
• a slider (110) coupled to the connector body (100) so as to be moved along the guide rails (101);
• and connectors (131, 133) configured to be respectively mounted to a lower end of the support (30) and the slider (110), to be coupled to or separated from each other according to ascent and descent of the support (30), and to be respectively connected with the power line (135), which is connected to the actuating unit of the headrest (20), and the power line (137), which is connected to the power supply unit of the vehicle via the seat main body (10).