| 摘要 |
The present invention relates to a height driving unit of an electric seat for a vehicle and, more specifically, to a height driving unit of an electric seat for a vehicle, including an elevation driving motor; a worm gear; a horizontal movable member; a variable resistor; and a seat memory ECU. The elevation driving motor is fixed and installed on a fixed bracket fixed on one lower side of a seat frame. The worm gear is joined to the front end of a rotary shaft of the elevation driving motor and is rotated. The horizontal movable member joined to the worm gear includes a movable groove on the outer circumference of one end to be horizontally moved in a direction perpendicular with respect to the rotary shaft of the elevation driving motor. The other end of the horizontal movable member is fixed to the lower part of a connection link fixed to the lower part of the seat frame to be rotated so that the horizontal movable member can adjust the height of a seat cushion by adjusting a radius of the rotation of the connection link according to the horizontal movement. The variable resistor is joined to the end of the horizontal movable member, and a resistance value of the variable resistor varies according to the variable length of the horizontal movable member which is moved back and forth according to a rotational direction of the elevation driving motor. The seat memory ECU reads, records, compares the resistance value varies by the variable resistor, and transmits driving signals necessary to the elevation driving motor according to the operation of a power switch or the seat memory switch. |
