| 摘要 |
<p>PURPOSE: To prevent the overheat of a moving and a stationary elements radiating heat which is generated in a moving element and a stationary element by the travelling of the moving element in a linear motor device for driving to travel the moving element along a fixed axial line by a driving power source supplied to a primary side conductor. CONSTITUTION: In order to prevent the overheat of a coil unit 1, a cooling fin 1b extending in the circumferential direction in the outer surface of a cover member 1a for covering a coil and projecting in the direction of perpendicularly crossing the axial line of the coil is disposed at a predetermined interval to radiate the heat of the coil unit 1 through the cooling fin 1b by using a current of air generated during the travelling of a counterweight unit. Therefore, since the coil unit and the column are efficiently cooled, the overheat can be prevented, the performance of the column and the coil of the linear motor device can be prevented from being lowered, and the elevator operation can be always made with constant power performance.</p> |
