Motor assembly for driving a fan of a gas boiler

Details Motor assembly for driving a fan of a gas boiler Motor assembly for driving a fan of a gas boiler

1998-08-12

1999-11-02

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310101, 310 91, 310 43, 310216, H02K 500

Patent

active

059776714

ABSTRACT:
An fan motor assembly for driving a fan of a gas boiler. The motor assembly has a core having a hollow portion at a center thereof, a coil assembly for magnetizing the core by applying an electric current to the core, a rotor rotatably disposed in the hollow portion of the core and having a rotating shaft including a first shaft which extends towards a fan so as to be coupled with the fan and a second shaft which extends opposite to the first shaft, a first cover attached to a front surface of the core and having a first bearing therein for rotatably supporting the first shaft of the rotating shaft, and a second cover attached to a rear surface of the core and formed at an inner portion thereof with a first recess for installing a second bearing for rotatably supporting the second shaft of the rotating shaft and a second recess for installing a printed circuit board on which a sensor for detecting revolutions per minute of the rotor is mounted. The motor assembly has a simple construction and can be easily assembled so that not only are the assembling steps and assembling time reduced, but also the manufacturing cost is saved.

REFERENCES:
patent: 4928029 (1990-05-01), Wright
patent: 4955128 (1990-09-01), Sogabe et al.
patent: 4982125 (1991-01-01), Shirakawa
patent: 5053664 (1991-10-01), Kikuta et al.
patent: 5780951 (1998-07-01), Stephens

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