| 摘要 |
<p>The present invention relates to a motor assembly for automatic transfer switches, which generates a driving force and delivers the driving force to a driving part installed in a base through a handle. The motor assembly comprises: a motor box whose lower part has a hemispherical cross-section and whose upper part is opened in order to be assembled stably to a motor mounting part of the base; a shaft holding plate which divides the space of the motor box at the front portion as long as the length of a motor shaft, and has a motor shaft hole into which the motor shaft of an electric motor can be inserted; an electric motor which is assembled while the motor shaft is inserted in the motor shaft hole; a first cam which is formed on the motor shaft in order to be rotated integrally with the motor shaft; and a second cam which is formed on the same axis as the motor shaft equipped with the first cam, and has a phase difference of a specific angle in the circumferential direction with respect to the first cam.</p> |
