US 2010/0074761 A1Published application

Impeller assembly

OwnerSheng-An Yanginventor

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Abstract

An impeller assembly is revealed. The impeller assembly includes a base arranged with at least one impeller. The base has a flow guide surface disposed with at least one mount location set thereof. The mount location set is composed of a plurality of locking slots and a mounting region while each locking slot connects the mounting region with the flow guide surface. The impeller includes a mounting part mounted into the mounting region of the base and a plurality of blades is arranged around the mounting part. A reinforcing piece is disposed between the inner edge of the blade and the mounting part for connection, and is mounted into the locking slot correspondingly. By such design, the structural strength of the weak region between the mounting part and the blade is increased and this favors precise location and assembly of the impeller with the base.

Claims12

Dependent claims

An impeller assembly comprising:

a base having a flow guide surface and being disposed with at least one mount location set;
wherein the mount location set includes a plurality of locking slots and a mounting region while each locking slot connects the mounting region with the flow guide surface;
and
at least one impeller having a mounting part in a center thereof to be mounted in the mounting region of the base correspondingly and a plurality of blades arranged around a periphery of the mounting part and corresponding to each locking slot of the base;
wherein the blade includes a front edge that is an air inlet end and a rear edge while a region between an inner edge of the blade and the periphery of the mounting part is arranged with a reinforcing piece;
the reinforcing piece connects the mounting part and the inner edge of the blade and being mounted in the locking slot of the base correspondingly;
a region among the two adjacent blades and the flow guide surface of the base forms an air channel.

4 more elements

Dependencies are inferred from the claim text.