JPH0710175Y2 - Integrated air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an integrated air conditioner installed outdoors or on a rooftop.

[Prior Art] FIG. 4 is a vertical cross-sectional view of an integrated air conditioner filed by the present applicant in a utility model registration application No. 128762 in 1991, and FIG. 5 is a perspective view of main parts of the air conditioner. , FIG. 6 is a rear view of the air conditioner. As shown in the figure, in this integrated air conditioner, the utilization side chamber 3 is provided above the partition plate 2 by partitioning the interior of the vertically elongated container casing 1 into upper and lower parts by a partition plate 2 also serving as a drain pan. The heat source side chamber 6 is formed below the partition plate 2.

An indoor heat exchanger 7 made of a plate fin type or a finch tube or the like and an indoor blower 8 made of Shirotsuko Juan or the like are housed in the utilization side chamber 3. The indoor heat exchanger 7 is erected so as to face the return air port 9 formed in the back plate 1a of the housing 1. The indoor blower 8 is attached so that the indoor air that has passed through the indoor heat exchanger 7 can be sucked and blown to the air outlet 10 formed in the top plate 1b of the device casing 1. Then, when the indoor blower 8 is driven, the indoor air in the room 21 flows into the indoor heat exchanger 7 through the suction duct 22 and the return air port 9 as shown by the white arrow, and passes through it. It becomes conditioned air by being cooled or heated in the process,
Next, it is sucked into the indoor blower 8 and is energized to
10. The air is blown from the ceiling into the room 21 through the conditioned air duct 23.

Inside the heat source side chamber 6, a compressor 11, outdoor heat exchangers 12a and 12b of a plate fin type or a finch type, an outdoor blower 13 of a propeller fan, and the like are housed. The compressor 11 is a bottom plate of the device casing 1 in a state in which glass wool 14 is shielded by a sound insulation box 15 attached to the inner surface.
Fixed on 1c. The outdoor heat exchanger 12a is erected so as to face the intake port 16a formed in the back plate 1a, and the outdoor heat exchanger 12b faces the intake port 16b formed in the front plate 1d of the housing 1. Is erected.

The outdoor blower 13 is arranged so that the outside air flowing through the outdoor heat exchangers 12a and 12b can be blown toward the exhaust port 17 formed in the front plate 1d. In addition, 18 is the outdoor heat exchanger 12a, 12b
A drain pan that receives the drain that is dripped from, 19 is a wind shield that prevents the outside air from bypassing the exhaust port 17 without passing through the outdoor heat exchangers 12a and 12b, and 20 is the intake air formed under the rear plate 1a The mouth, 24 is the floor, and 25 is the outer wall of the building.

Then, when the outdoor blower 13 is rotated, the outside air is drawn into the heat source side chamber 6 through the intake ports 16a, 16b and 20 as indicated by the black arrow. The outside air taken in through the intake port 20 is cooled in the process of flowing around the compressor 11, and then is combined with the outside air taken in through the intake port 16b to be heated by passing through the outdoor heat exchanger 12b. Or it is cooled. Inlet port 16a
The outside air sucked in from is heated or cooled by passing through the outdoor heat exchanger 12a. And the outdoor heat exchanger 12
The outside air that has flowed through the a and 12b merges, is sucked into the outdoor blower 13, is energized there, and is then discharged from the exhaust port 17 into the atmosphere.

During the cooling operation of this integrated air conditioner, the refrigerant discharged from the compressor 11 is condensed and liquefied by the outdoor heat exchangers 12a and 12b,
It is adiabatically expanded by an expansion valve (not shown), then evaporated and vaporized by the indoor heat exchanger 7, and then sucked into the compressor 11 again.

By switching a four-way switching valve (not shown) during the heating operation, the refrigerant circulates in the direction opposite to that during the cooling operation.

[Problems to be solved by the device]

In order to secure an air passage on the downstream side of the indoor blower 8 as shown in FIGS. 4 to 6, the integrated air conditioner has a large opening fan that substantially matches the longitudinal dimension of the indoor blower 8. An air outlet 10 is provided, and a conditioned air duct 23 having the same cross-sectional shape as the air outlet 10 is connected to the air outlet 10, and after passing through the outer wall 25 of the building, the interior 21 is reduced to a proper size. As a result, the construction cost of the conditioned air duct 23 is high and the outer wall 25
Due to the large size of the through hole, the outer wall strength was reduced and the risk of rainwater intrusion increased.

Further, since the air supply port 10 and the return air port 9 overlap each other in the vertical direction of the device casing 1, a suction duct connected to the return air port 9
In No. 22, the duct 23 for conditioned air was an obstacle, and it was impossible to directly start up and construct in the room 21, and as a result, the space inside the room 21 was narrowed.

In view of the above circumstances, the present invention intends to provide means for reducing the size of the air supply port and for avoiding mutual interference when the conditioned air duct 23 and the suction duct are installed.

[Means for Solving the Problems]

The present invention is to solve the above-mentioned problems, in which a use-side chamber for accommodating an indoor heat exchanger and an indoor blower is formed above the inside of the device casing, and an outdoor heat exchanger and an outdoor blower are provided below the inside of the device casing. In an integrated air conditioner in which a heat source side chamber to be housed is formed, a box-shaped discharge chamber is formed on the top of the top plate of the housing, and an air supply port is provided on the rear plate or upper plate of the discharge chamber. An integrated air conditioner characterized in that the air supply port and the return air port provided on the back plate of the device casing are provided at positions that do not overlap each other in the vertical direction.

[Action]

In the integrated air conditioner of the present invention, the discharge chamber is provided above the top plate of the casing, and the air supply port is formed in the rear plate or the upper plate of the discharge chamber. The opening area of the air supply port can be reduced and the cross-sectional area of the conditioned air duct connected to the air supply port can be reduced without increasing the temperature of the air supply port. Further, since the air supply port and the return air port are formed at positions that do not overlap each other in the vertical direction, the ducts connected to the air supply port and the return air port can be started and lowered without interfering with each other. Construction is possible.

〔Example〕

FIG. 1 is a rear view of the first embodiment of the present invention, and FIG. 2 is a perspective view of an essential part of the same embodiment. In FIG. 1, 1 is a unit casing of an integrated air conditioner having the same internal structure as the conventional one, 1b is a top plate of the unit casing, and 40 is a box type provided on the top plate 1b of the unit casing. Discharge chamber, 40a is the rear plate of discharge chamber 40, 42A
Is an air supply port formed in the rear plate 40a. The back plate 1a of the housing 1 is provided with a return port 9 as in the conventional case. In FIG. 2, 43 is an opening provided in the top plate 1b,
This is a part that communicates the discharge side chamber with the use side chamber where the indoor blower is housed. The size of the opening 43 in the longitudinal direction is substantially the same as the longitudinal direction of the indoor blower 8. Reference numeral 23A is a conditioned air duct connected to the air supply port 42A of the discharge chamber, and has a width smaller than that of the conventional duct 23. 22A is a suction duct connected to the return air port 9 on the back plate of the casing, and unlike the conventional duct 22, is raised upward at a position away from the casing.

In the integrated air conditioner having the above structure, the air blown by the indoor blower 8 is once collected in the discharge chamber 40 through the opening 43 and blown to the air blow port 42A. As a result of the downstream air passage being secured, the opening area of the air supply port 42A can be reduced without causing an increase in the air flow resistance of the indoor blower 8, and the conditioned air duct 23A connected to the air supply port 42A. Since the cross-sectional area of the building is reduced, it is possible to reduce the through hole of the building outdoor wall (not shown). Further, the air supply port 42A, which has been reduced in size as described above, and the return air port 9 formed on the rear plate are at positions where they do not overlap with each other in the vertical direction of the device casing 1, that is, the distance l in FIG. Can be provided in an isolated position by keeping the above. Therefore, as shown in FIG. 2, since the air conditioning duct 23A and the suction duct 22A do not overlap each other when projected on a horizontal plane, the respective ducts should be vertically raised or lowered indoors. If you do, they will not interfere with each other.

FIG. 3 is a perspective view of an essential part of the second embodiment of the present invention. In the figure, 40b is the upper plate of the discharge chamber 40, and 42B is the upper plate 40.
An air supply port 23B provided in b is a conditioned air duct connected to the air supply port 42B. The positions of the air supply port 42B and the conditioned air duct 42B are different from those of the first embodiment. For this reason, the duct 42B is vertically raised and then bent in the lateral direction. 22B is a suction duct connected to the return port 9, which is the first
The shape is the same as that of the embodiment. The parts other than the above are the same as those in the first embodiment.

Also in this embodiment, as in the first embodiment, the air supply port 42B.
The cross section of the conditioned air duct 23B can be reduced, and the conditioned air duct 23B and the suction duct 22B can be reduced.
Do not overlap each other when projected on a horizontal plane, and do not interfere with each other even when the ducts are raised or lowered.

Although the air supply port and the return air port have a rectangular cross section in FIGS. 1 to 3, one or both of them may have a circular cross section. Also, when viewed from the back plate direction, the air supply port is formed on the left side and the return air port is formed on the right side, but by forming the air supply port on the right side and the return air port on the left side. Good.

[Effect of device]

In the integrated air conditioner of the present invention, by providing the discharge chamber above the top plate of the casing, it is possible to shorten the air supply port formed on the rear plate or upper plate of the discharge chamber. Since the sectional area of the conditioned air duct is reduced, the construction cost of the air conditioned duct can be saved. In addition, the through holes in the outer wall of the building can be made smaller, so that the reduction in strength of the outer wall can be avoided and the risk of rainwater intrusion can be reduced. In addition, the air supply port and the return air port are formed so that they do not overlap each other in the vertical direction, so that the ducts may interfere with each other even if the ducts are built up or down vertically indoors. Is eliminated, and indoor space availability is improved.

[Brief description of drawings]

FIG. 1 is a rear view of the first embodiment of the present invention, FIG. 2 is a perspective view of an essential part of the same embodiment, FIG. 3 is a perspective view of an essential part of the second embodiment, and FIG. FIG. 5 is a longitudinal sectional view of the air conditioner, FIG. 5 is a perspective view of a main part of the air conditioner, and FIG. 6 is a rear view of the air conditioner. 1 ... instrument casing, 1a ... instrument casing back plate, 1b ... instrument casing top plate,
8: Indoor blower, 9: Return air port, 22A, 22B: Suction duct, 23A, 23B: Conditioned air duct, 40: Discharge chamber, 40a: Discharge chamber rear plate, 40b: Discharge Upper plate of the chamber, 42A, 42B ... air supply port, 43 ... opening.

Claims (1)

[Scope of utility model registration request] 1. A use-side chamber for accommodating an indoor heat exchanger and an indoor blower is formed above the inside of a device casing, and a heat source-side chamber for accommodating an outdoor heat exchanger, an outdoor blower, etc. is formed below the inside of the device casing. In the integrated air conditioner, a box-shaped discharge chamber is formed in the upper part of the top plate of the device casing, and an air supply port is provided in the rear plate or upper plate of the discharge chamber, and the air supply port and the device An integrated air conditioner characterized in that a return air port provided on a back plate of a casing is provided at a position where they do not overlap each other in the vertical direction.