Refrigeration – Structural installation
Patent
1997-04-23
1998-07-07
Doerrler, William
Refrigeration
Structural installation
62428, 62298, F24F 500
Patent
active
057751200
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an outdoor unit of a separate type air conditioner of which indoor unit and outdoor unit are connected with each other by means of piping.
BACKGROUND ART
A prior art air conditioner outdoor unit has been generally constructed by a heat exchange unit and a machine room unit, the heat exchange unit having a heat exchanger bent in a L-like shape in a generally box-shaped casing, and a propeller fan at a rear surface side corner portion of the heat exchanger, and the machine room unit having a compressor and electric components adjacently on a side of the heat exchange unit via a partition wall.
There is another outdoor unit employing a cross flow fan in place of the propeller fan.
In the outdoor unit employing a cross flow fan, an approximately L-shaped heat exchanger extending from a front surface side to one side surface side is provided in a casing, a cross flow fan is provided on the other side portion side to form a lateral wind passage for taking in air from an air inlet formed at the one side portion side of the casing and discharging the air through an air outlet formed at the other side portion side, and a machine room is further provided at a rear surface side of the air passage via a partition wall (Japanese patent publication No. HEI 6-63655).
In yet another outdoor unit, a heat exchanger having a flat configuration is provided only at a front surface side of a casing, and a cross flow fan is provided behind the heat exchanger with interposition of a scroll section so as to discharge air blown from the cross flow fan through an air outlet formed at the side of a casing (Japanese Patent Laid-Open Publication No. SHO 55-118562).
However, there is a limitation in compacting any of the above prior arts, and if it is attempted to compact the outdoor unit itself, it causes a disadvantage that the heat exchange area itself of the heat exchanger is inevitably reduced in accordance with the compact and the air delivery capacity of the fan is reduced, thus lowering the heat exchanging ability.
There is another one in which a heat exchange unit and a machine room unit are simply stacked vertically to provide a slim configuration. However, according to such a simple vertical stack configuration achieved without changing the structures of the unit sections, its dimensions in the lateral direction and the depthwise direction can be reduced in outline in comparison with the aforementioned prior arts. However, it extends only in the vertical direction, and any further achievement in slimming and thinning of the configuration is impossible. Furthermore, if it is attempted to adopt a top joint structure capable of easily performing a pipe connecting work in the same construction, there emerges another problem of how to arrange in an upper place a communication pipe (refrigerant pipe) extending from the machine room at the lower side.
Accordingly, it is an object of the present invention to provide an air conditioner outdoor unit which has a high heat exchanging ability and a compact configuration capable of allowing its installation area to be reduced.
Another object of the present invention is to provide an air conditioner outdoor unit capable of reducing its installation space and achieving an improved stability and an improved aesthetic performance in the installed state.
DISCLOSURE OF THE INVENTION
The present invention provides an air conditioner outdoor unit comprising a compressor, a heat exchanger and a fan, wherein the heat exchanger is arranged on the periphery of the fan and bent substantially in a U-like or J-like shape so that it encloses a specified portion of the fan.
According to the above construction, the heat exchanger is bent in a U-like or J-like shape so as to enclose the specified portion of the fan, and therefore, it is allowed to be totally compacted as far as possible while securing a sufficient heat exchange area. Therefore, the whole outdoor unit is compacted and made thin.
Furthermore, the specified portion of the fan is enclosed b
REFERENCES:
patent: 4132088 (1979-01-01), Grosskopf
patent: 4138859 (1979-02-01), Pietsch
patent: 4475585 (1984-10-01), Hoeffken
patent: 4736598 (1988-04-01), Sameshima et al.
patent: 5582026 (1996-12-01), Barto
patent: 5619863 (1997-04-01), Kil
Inazuka Toru
Nagao Mitsuhisa
Takenaka Takahiro
Daikin Industries Ltd.
Doerrler William
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