PROTECTION STRUCTURE OF MOTOR FOR COOLING-FAN

摘要

The present invention relates to a motor protection structure of a cooling fan including a motor connected to a power line to receive electricity and a hub rotating in connection with the motor. The hub comprises an outer part having blades formed along the outer edge and a central hole formed in the center; a center part positioned in the central hole and connected to a rotary shaft of the motor; and supporting members connecting the outer part and the center part. The motor protection structure of a cooling fan is characterized in that supporting members are disconnected in rotation of the motor when detention occurs in blades. The motor protection structure of a cooling fan of the present invention is an effect of preventing fire occurrence in advance by preventing overload of the motor as the supporting member is physically disconnected when the detention of the motor occurs. Further, the power line is configured to pass through the supporting member so that the unnecessary rotation of the motor is prevented as the power line is also disconnected in disconnection of the supporting member. The motor protection structure of the present invention has effects that the separation of the outer part separated from the center part is prevented as a holding cap is provided, and that the supporting member is easily disconnected if pressure occurs between the center part and the outer part as multiple supporting members are arranged to form a spiral shape.