Motor unit for sunroof

A motor unit for a sunroof, the motor unit comprising:

• a lower housing configured as a box body having an open upper surface and having a drive motor provided therein, the drive motor driving a motor shaft having a worm gear provided thereon;
• an upper housing configured as a box body having an open lower surface so as to cover the open upper surface of the lower housing, the upper housing having a protruding hub formed at a center portion thereof;
• a bush provided in the protruding hub of the upper housing;
• a worm wheel having a circumference configured to be rotated in engagement with the worm gear and having a hub part formed at a center of the worm wheel by protruding therefrom, the hub part being rotatably installed by passing through an inside of the bush;
• a drive shaft installed to be fixed to the worm wheel by passing through the hub part of the worm wheel;
• a pinion gear coupled to an upper end part of the drive shaft such that power is transmitted therebetween;
• a washer located between the pinion gear and the hub part of the worm wheel;
• and
• a bottom cover allowing the worm wheel to be rotatably mounted thereto,
• wherein a bent part is formed at an upper end of the drive shaft, the bent part covering a portion of an upper surface of the pinion gear, and
• a contact part is formed at an upper surface of the worm wheel, the contact part configured to be in contact with a lower surface of the bush.