Refrigeration – Structural installation – Window connected or mounted
Reexamination Certificate
1999-08-17
2001-08-21
Bennett, Henry (Department: 3744)
Refrigeration
Structural installation
Window connected or mounted
C062S298000
Reexamination Certificate
active
06276156
ABSTRACT:
TECHNICAL FIELD
The present invention is directed to a room air conditioner and, more particularly, to a room air conditioner having foamed insulation walls forming the evaporator air flow path within the air conditioner.
BACKGROUND ART
Room air conditioners generally have an air inlet and an air outlet at a front side of the air conditioner which faces the interior of the room when the air conditioner is placed in a window opening or in a through-the-wall sleeve. Usually warm air is drawn in through a portion of the front grill to pass through a filter and through the evaporator coil to be cooled and then is directed by a blower or a fan to an outlet also in the front grill.
Prior art air conditioners have included a variety of sheet metal and plastic wall sections for defining the air flow path through such an air conditioner. Also, it is known to use a foamed insulation material to define a portion of the air passage within the air conditioner. U.S. Pat. No. 5,085,057 is representative of such prior arrangements.
Due to the complexity and the number of parts associated with a room air conditioner, assembly of such a device often times includes complicated and time intensive assembly steps and requires intricate manipulation of parts and tools. Such a process results in an increased cost of the room air conditioner due to increased manufacturing costs. Accordingly, it is desirable to design and fabricate components for a window room air conditioner which are as simple as possible and which perform as many functions as possible within the air conditioner while requiring a minimum of cost and labor to install.
DISCLOSURE OF THE INVENTION
According to the present invention, an air directing housing is provided for an air conditioning unit of the type having a basepan which supports indoor and outdoor sections. The basepan includes a vertical wall extending upwardly for a part of the height of the unit to define a lower portion of a partition which separates the unit into the indoor and outdoor sections. The indoor section includes an evaporator disposed in the basepan generally forwardly of the partition. A centrifugal fan is mounted between the evaporator coil and the vertical wall for rotation about an axis extending from front to back of the air conditioning unit. The fan is a centrifugal flow fan which has a circular inlet at the front thereof. The air directing housing is adapted to be mounted in the basepan rearwardly of the evaporator coil and surrounding the fan. The housing includes a lower section having a front wall which has a circular opening formed therein which is substantially coextensive with the circular inlet of the fan. The lower section also includes an interior scroll section for receiving the fan, and an open back. The air directing housing further includes an upper section defining an enclosed top structure for cooperation with the upper discharge structure of the lower section to define the air discharge opening of the air conditioner. The upper section further includes a rear wall having a lower edge adapted to engage the vertically extending wall of the basepan to define the upper portion of the partition. As a result, when the lower and upper air directing housing sections are installed in the housing, they cooperate with one another, the basepan, and the vertically extending wall to define the fan housing, the air intake and air discharge of the air conditioner.
REFERENCES:
patent: 4683370 (1987-07-01), Petersen et al.
patent: 4800734 (1989-01-01), Sauber et al.
patent: 5085057 (1992-02-01), Thompson et al.
patent: 5222374 (1993-06-01), Thompson et al.
patent: 5295531 (1994-03-01), Tsunekawa et al.
patent: 5638693 (1997-06-01), Baek
patent: 5943873 (1999-08-01), Chung
patent: 54-51236 (1979-04-01), None
Brisola Rogerio Soares
da Silva Regis Batista
Bennett Henry
Carrier Corporation
Jones Melvin
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