Patent ID: 7615902
Filing Date: 2009-11-10
Classification: E05F,E05Y,H02K,Y10T

Abstract:
1. A motor comprising: a motor element including a rotation shaft; a speed reduction element including a rotation speed reduction device and a gear housing, wherein the rotation speed reduction device reduces a rotation speed of the rotation shaft, wherein the gear housing accommodates the rotation speed reduction device, and wherein the speed reduction element is coupled with the motor element; and a water proof sheet, wherein the gear housing includes an accommodation portion and a cover, the accommodation portion includes a communication passage and an accommodation concavity, the communication passage is coupled with an inside of the motor element, the communication passage has an accommodation side opening, the accommodation concavity accommodates the rotation speed reduction device, the cover includes a breathing hole, the breathing hole has a cover side opening connecting to the accommodation side opening, the breathing hole couples between the communication passage and an outside of the gear housing, the cover seals an opening of the accommodation concavity, the water proof sheet is disposed between the accommodation side opening and the cover side opening, and the water proof sheet has water proof property and gas permeability.