Refrigeration – Structural installation – Window connected or mounted
Reexamination Certificate
1999-01-20
2001-03-06
Doerrler, William (Department: 3744)
Refrigeration
Structural installation
Window connected or mounted
C062S296000, C062S428000
Reexamination Certificate
active
06196013
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a window-type air conditioner, and more particularly to a fan casing for a window-type air conditioner adapted to improve the flow of external air sucked through the fan.
2. Description of the Prior Art
A window-type air conditioner according to the prior art includes, as illustrated in FIGS.
1
and
2
: a base panel
10
, an evaporator
20
, a blade frame
30
, and a control casing
40
. The evaporator
20
and blade frame
30
are connected by an indoor casing
50
, control casing
40
is screwed to a side of evaporator
20
and to a bottom surface (not shown) of blade frame
30
. Blade frame
30
has a plurality of vertical blades
60
for horizontal control of air flow.
Base panel
10
is connected at an upper surface thereof to an outer panel
70
which has at both sides thereof a plurality of draft holes
71
. Outer panel
70
is attached to a front panel
80
for forming an exterior appearance of the air conditioner and for concurrently sucking and discharging the room air.
Front panel
80
includes a suction grille
81
, a discharge grille
82
and a plurality of horizontal blades
90
for controlling the flow. Base panel
10
supports a compressor
100
and an outdoor casing
110
. Between outdoor casing
110
and indoor casing
50
are a plurality of gap brackets
120
.
Referring to
FIG. 2
, between indoor casing
50
and outdoor casing
120
is located a fan
150
for sucking the room air and external air into an inner space
145
and an outer space
140
, circulating the interiors thereof and discharging the same outside. A condenser
130
is located in interior space
145
.
Fan
150
includes a motor
151
, having attached thereto an inner fan blade
152
, and an outer fan blade
153
disposed at through-hole
111
of outdoor casing
110
.
A problem exists in conventional window-type air conditioners thus constructed, in that the plurality of draft holes
71
arranged at both walls of the outer panel
70
are formed shortened at lengths (La) thereof to limit influx of external air through the plurality of draft holes
71
and this may result in an insufficient amount of air passing therethrough, thereby leading to insufficient cooling of condenser
130
. Another problem is that the air sucked through the outer space
140
becomes vertical by being resisted and disturbed in flow thereof by corners of outdoor casing
110
, thereby generating noise.
SUMMARY OF THE INVENTION
The present invention is intended to solve the aforementioned problems. It is therefore an object of the present invention to provide a fan casing for a window-type air conditioner, that is adapted to smooth and form corners of outdoor casing in slow curvatures and to increase the length of the draft holes, thereby improving flow of external air, and reducing disturbance and resistance of air flow, decreasing eddy currents and decreasing noises.
To accomplish these objects of the invention, a fan casing is provided for a window-type air conditioner. The casing has an outer panel formed with a plurality of draft holes for suction of external air, and an outdoor casing disposed at an external space of the air conditioner for sucked air to be dispersed and discharged into a condenser according to rotation of an outdoor fan. The outdoor casing is so formed as to be smoothened in the corners thereof in slow curvatures and to increase the length of draft holes, thereby increasing the sucked amount of external air, reducing disturbance and resistance of air flow, decreasing eddy currents, and decreasing noise.
REFERENCES:
patent: 3756039 (1973-09-01), Riello
patent: 3805542 (1974-04-01), Hosoda et al.
patent: 3906741 (1975-09-01), Terry
patent: 5329784 (1994-07-01), Kennedy et al.
patent: 62530 (1985-04-01), None
patent: 134129 (1985-07-01), None
Bushnell , Esq. Robert E.
Doerrler William
Samsung Electronics Co,. Ltd.
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