Integral refrigerator motor fan blades

Details Integral refrigerator motor fan blades Integral refrigerator motor fan blades

1994-05-04

1996-11-12

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68R, 310 62, 310 63, 310 42, H02K 714, H02K 1100

Patent

active

055743218

ABSTRACT:
A dynamoelectric machine in the preferred form of a permanent magnet motor has an integral blade assembly associated with the rotor for the motor. The motor includes an enclosure with which the blade assembly mates. The blade structure/housing combination provides a labyrinth moving seal to protect the motor and associated motor control. The blade assembly and enclosure preferably are constructed from nonconductive material and provide a fully electrically insulated motor-fan assembly, which eliminates the need for certain grounding requirements. Blade construction is optimized easily to reduce audible sound in operation use. A method of assembly for a motor provides an integral blade assembly housing arrangement.

REFERENCES:
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patent: 4459519 (1984-07-01), Erdman
patent: 4668898 (1987-05-01), Harms et al.
patent: 4883982 (1989-11-01), Forbes et al.
patent: 4955791 (1990-09-01), Wrobel
patent: 5278468 (1994-01-01), Escaravage et al.
patent: 5281886 (1994-01-01), Ohta
patent: 5363003 (1994-11-01), Harada et al.
Mitsubishi Axial-Flow Fans, Setting New Standards of Performance and Quietness, E-C4615-F NK-9107 printed in Japan (ROD), Revised publication, effective Jul. 1991.
Papst Cooling Fans and Blowers, Papst Mechatronics Innovative motors and fans, L500a USA, printed in Germany, 1990/1991.
Tubeaxial Fans Catalog T9/3, ebm Industries, Inc., .COPYRGT.ebm Industries, Inc. 1989USA.

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