Patent ID: 8678774

Claim:
A scroll compressor, comprising: a hermetic container; a drive motor installed in an inner space of the hermetric container, the drive motor having a variable speed and being provided with a rotational shaft; a fixed scroll fixedly-coupled to an inner circumferential surface of the hermetic container at one side of the drive motor, and having a wrap of a predetermined height at one side surface thereof; an orbiting scroll having a wrap of a predetermined height at one side surface thereof, so as to be engaged with the wrap of the fixed scroll, eccentrically coupled to the rotational shaft of the drive motor, and forming a compression chamber which is consecutively moved between the wraps while performing an orbiting motion with respect to the fixed scroll; and a controller configured to control a value obtained by multiplying a wrap height (H) of the fixed scroll or the orbiting scroll by a driving speed (V) of the drive motor to be within a range of approximately 500˜1000 mmHz when the orbiting scroll performs the orbiting motion at a speed less than approximately 35 Hz, wherein the controller comprises: an input device configured to receive the driving speed (V) of the drive motor; a determination device configured to check whether the calculated value (H×V) obtained by multiplying the driving speed (V) of the drive motor by the wrap height (H) is within the range, and determine whether the current driving speed is optimum; and a command device configured to control the driving speed of the drive motor based on the determination result by the determination device.