Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
1999-05-27
2001-04-17
Ramirez, Nestor (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C062S508000, C248S638000, C248S674000, C248S676000
Reexamination Certificate
active
06218752
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a motor mount assembly for an air conditioner; more particularly, to a motor mount assembly integrated into an air conditioner housing.
In an air conditioner including an indoor machine portion and an outdoor machine portion, both of indoor and outdoor fans are connected to a common motor shaft.
FIG. 1
is a drawing showing a conventional motor mount assembly for an integrated air conditioner.
As shown in
FIG. 1
, the conventional assembly includes a base panel
1
, and a motor mount
2
for mounting a motor
3
, wherein a base plate
2
a
of the motor mount
2
is attached to the base panel
1
by four screws, and side plates
2
c
having two holes
2
b
for ventilation of the motor mount
2
are bent toward an upper direction. The motor
3
is mounted on the side plates
2
c
and attached perpendicular by four screws.
Further,
FIG. 2
is a drawing showing another conventional motor mount assembly for an integrated air conditioner.
As shown in
FIG. 2
, a conventional assembly includes a base panel
1
, a barrier
6
and a supporter
7
provided on the base panel
1
, a motor mount
8
for mounting the motor
3
electrically welded to the supporter
7
, and an indoor fan and an outdoor fan connected to a motor shaft
3
a.
In addition,
FIG. 3
is a drawing showing another conventional motor mount assembly for an integrated air conditioner.
As shown in
FIG. 3
, the conventional assembly includes a base panel
1
, and a barrier
6
for mounting a motor
3
provided on the base panel
1
, wherein vibroisolating rubber (not shown) is provided between the motor
3
and the barrier
6
.
In the above-described conventional air conditioners, however, it is hard to support the motor on the motor mount due to its heavy weight. As a result that, a noise and vibrations are generated by the imbalance of the motor. This vibration from the motor amplifies noise from the parts by resonance. Further, the lives of bearings and elements, which are engaged with the motor shaft, are reduced by wear of the bearings, thereby generating increased noise.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a motor mount assembly for an integrated air conditioner in which a strong support of the motor mount is achieved by forming the motor mount as a U-shaped steel channel.
It is another object of the present invention to provide a quieter air conditioner by preventing vibration on the motor mount assembly.
In order to achieve the above-mentioned objects, the motor mount assembly according to the present invention comprises a motor mount assembly for an air conditioner comprising; a base panel; and a motor frame connectable to said base panel, said motor frame including, an upstanding bracket having opposed upstanding, parallel sidewalls connected by an upstanding center wall, the upstanding walls defining a substantially U-shaped chamber for accommodating a housing of the motor with a shaft of the motor extending between and parallel to said sidewalls; each of said sidewalls having a base section and a top section, a front edge of the top section being offset toward the center wall from a front edge of the base section providing a horizontal step at a top of the base section; and fasteners connecting the motor housing to said motor support.
REFERENCES:
patent: 852678 (1907-05-01), Reist
patent: 3395594 (1968-08-01), Blair
patent: 3983429 (1976-09-01), Allardice
patent: 4033531 (1977-07-01), Levine
patent: 5417401 (1995-05-01), Thompson et al.
patent: 5437164 (1995-08-01), Consiglio
patent: 5488259 (1996-01-01), Cho
patent: 5629575 (1997-05-01), Cazal et al.
Chang Woo Sung
Choi Nam Kyu
Dinh Le Dang
LG Electronics Inc.
Ramirez Nestor
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