Importance

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Abstract

The present application provides a fan assembly for a reflow oven, the fan assembly comprises: a motor, an impeller, an insulation device, and an isolation sleeve. The motor has a motor body and a motor shaft extending from the motor body. The impeller is connected to the motor. The insulation device is disposed between the motor body and the impeller. The insulation device comprises an insulation device rear side surface facing the motor body, and an insulation device center bore. A front side surface of the insulation device has a distance from the impeller to form a gap. The isolation sleeve is sleeved on the motor shaft and at least partially located in the insulation device center bore, where a distal end of the isolation sleeve protrudes from one end of the insulation device center bore near the front side surface, so that the isolation sleeve isolates the motor shaft from the gap in a radial direction of the motor shaft, and the isolation sleeve is connected to the insulation device to limit rotation of the isolation sleeve relative to the insulation device. The isolation sleeve in the present application is capable of blocking adhesion of a flux to the motor shaft.

First Claim