Air guide assembly for an electric motor and methods of making

Details Air guide assembly for an electric motor and methods of making Air guide assembly for an electric motor and methods of making

1992-01-24

1994-03-22

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 89, 310 58, 310 62, 4174232, 4152112, 4152081, H02K 516, H02K 515, H02K 906, F04B 3912

Patent

active

052967697

ABSTRACT:
An air guide and motor housing assembly for use in domestic and commercial vacuum cleaners is described wherein the assembly comprises an air guide having a center detail for engaging the motor housing to facilitate assembly of the components, and reduce creep, turbulence and vibration-induced noise. An air guide for use with a centrifugal fan is described wherein the air guide is mounted on a motor bracket using the same rivets that fasten a bearing assembly to the motor bracket. Alternative embodiments of the device are also described in which a step in an inner fan housing cooperates with a step projecting from the air guide to securely fasten the air guide to the motor assembly, and a center detail on the air guide engages the motor housing to secure the air guide thereto, thereby providing the same advantages. Methods are provided for assembling an air guide and a motor housing together using fewer parts and assembly steps than conventional arrangements, and which permit reduction in the overall noise level of the finished appliance.

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