Impeller cap of dynamo for duster

Abstract

Impeller cap in cylinder shape opened at one side includes following parts: sucking hole penetrating plated surface formed at central part; guiding part formed on inner edge of sucking hole and extruded out toward sucking portion, liquid passing through sucking hole is guided to sucking portion by the guiding part; sealing part connected to outer ring of guiding part and one end of the sealing part is contacted to sucking portion of impeller so as to prevent liquid sucked into the sucking portion from leaking out. Features are: fewer parts, easy of assembling.

Description

technical field [0001] The present invention relates to a vacuum cleaner, in particular to the impeller cover of its motor. Background technique [0002] Such as figure 1 , 2 As shown in , 3, the vacuum cleaner motor has the following components, namely the stator 11; the rotor 13, its shaft is located inside the stator 11 and can rotate; the rotating shaft 15, which is assembled on the axis of the rotor 13, can Rotation; the impeller 21, which is connected to one end of the rotating shaft 15, can rotate together with the rotating shaft 15, thereby generating suction force. [0003] A housing 12 is connected to the outer surface of the stator 11 , and a commutator 17 is provided on one side of the rotating shaft 15 . Brushes 19 are respectively provided along the radial direction of the commutator 17 , and one end of these brushes is in contact with the commutator 17 . [0004] One side of the rotating shaft 15 is connected with an impeller 21 that can rotate together wi...

AI Technical Summary

Problems solved by technology

[0007] But, there is following problem in the above-mentioned existing vacuum cleaner motor: for the seal member 35 that is connected on the guide portion 34, need to make the surface of the ring-shaped seal member 35 made of soft rubber material. Teflon coating treatment, so the cost of the sealing member 35 itself is relatively high

And in order to fix the sealing member 35, it is also necessary to use another fixing member 37, so the number of parts and the assembly process will increase, thereby increasing the overall production cost.

[0008] In addition, since the operation of fixing the sealing member 35 made of soft rubber with the fixing member 37 made of metal is not easy to realize, there is a problem of low production efficiency.

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