| 摘要 |
PURPOSE: A disc and a hub assembly for an electronic clutch are provided to reduce the number of workers and cost by reducing the number of components, to buffer noise when a clutch operates, to improve compressing performance of a compressor by elevating the performance of a clutch and by reducing the loss of power transmission. CONSTITUTION: While the coil is inserted to a pulley(6) fixed to a compressor, power supply is fed to an excitation coil(63) composing a clutch(61). A friction face of a disc(4) is closely adhered to a friction face of the pulley by the elastic movement of the disc to the friction face of the pulley by the magnetic suction force according to the magnetic flux generating by the excitation coil. The disc rotates with the pulley rotating by being transmitted with the power of an engine via a belt. Thereby, a drive shaft of a compressor rotates via a stopper plate(2) and a hub(1) combined to the disc, and compresses coolant. If the feed of power supply to the excitation coil is stopped, the disc moves to opposite of the friction face of the pulley by the rebounding force of the stopper plate and a weight spider spring(3). The friction face of the disc is separated from the friction force of the pulley. Thereby, power is not transmitted to the drive shaft of a compressor.
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