Cross-Flow Fan, Electronic Device, and Impeller

摘要

A cross-flow fan includes a shaft, a plurality of impellers, and a regulation portion. Each impeller has: an opening into which the shaft is inserted; fitting portions provided at a first end portion and a second end portion in an axial direction of the shaft such that the fitting portions at the first end portion and the fitting portions at the second end portion are fittable into each other; and a blade portion provided between the first end portion and the second end portion. The regulation portion is configured to regulate movement, in the axial direction, of each of the plurality of impellers connected in the axial direction by the shaft being inserted into the opening and the fitting portions being provided, the regulation portion regulating the movement of each impeller on both ends, in the axial direction, of the plurality of impellers. Thus, assembling process is simplified.

主权项

1. A cross-flow fan comprising:
a shaft; a plurality of impellers each having an opening into which the shaft is inserted, the plurality of impellers each having fitting portions provided at a first end portion and a second end portion in an axial direction of the shaft such that, in the plurality of impellers, the fitting portions at the first end portion and the fitting portions at the second end portion are fittable into each other, the plurality of impellers each having a blade portion provided between the first end portion and the second end portion; and a regulation portion configured to regulate movement, in the axial direction, of each of the plurality of impellers connected in the axial direction by the shaft being inserted into the opening and the fitting portions being provided, the regulation portion regulating the movement of each impeller on both ends, in the axial direction, of the plurality of impellers, wherein the fitting portion at the first end portion is a projection that projects in a direction perpendicular to the axial direction, and the fitting portion at the second end portion is a recess that is fitted onto the projection.