JPH042341Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to an outdoor unit for balcony installation, and more specifically, to an outdoor unit for balcony installation that is mainly installed on a balcony provided on each floor of a building.

(Prior art) Conventionally, an outdoor unit that takes outdoor air into the outdoors and exchanges heat with the outdoor air has, for example,
-22665, and as shown in Fig. 9, an air outlet B is provided on the upper surface of the main casing A, and a suction port C is provided on the side surface of the main body casing A. An exchanger E is provided, and a fan F is disposed inside the air outlet B so that the outdoor air sucked in from the air inlet C is exchanged with heat through the heat exchanger E, and then blown upward. It is configured.

On the other hand, a veranda V installed on each floor of a building generally includes an exterior wall W ₁ of the building, a floor wall W ₂ extending outward from the exterior wall W ₁ , and a ceiling wall W ₃ formed by the lower surface of the floor wall of the upper floor. It is defined by three walls,
In some cases, a veranda wall _W4 is erected on the outer edge of the floor wall _W2 , and together with the three walls mentioned above, a veranda space D is formed.

When installing the outdoor unit described above on the balcony V, the suction port C of the outdoor unit is connected to the outer wall.
In contrast to W ₁ , if a balcony wall W ₄ is provided, it is installed at a predetermined distance from the balcony wall W ₄ .

(Problem to be solved by the invention) When the outdoor unit configured as described above is installed and operated on the balcony V, the air outlet B is located in the space D of the balcony V defined by each of the walls.
It is open to the veranda space D, and the blown air is
Firstly, there is a problem in that the fan F generates a large amount of noise not only indoors but also outdoors, and secondly, the air blown from the outlet B is inhaled. There was a problem in which a so-called short circuit, which is a short circuit as shown by the dotted line arrow in FIG. 9, was likely to occur at the port C.

The purpose of the present invention is to ensure soundproofing by improving the blowout structure, improve the comfort of the surrounding environment, and also solve problems caused by short circuits.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a suction port on the outer periphery of the inner part of the main body casing 1 that houses the outdoor heat exchanger 2 when installed on the balcony V. 11, and an axial fan 3 having a blowing hood 4 is disposed on the outside of the heat exchanger 2 to blow the air that has passed through the heat exchanger 2 toward the outside of the balcony V. While accomplishing as much as possible,
A muffling tube 5 having a rectifying tube 8 disposed inside is connected to the outside of the blow-off hood 4, and an air outlet 20 is provided outside the muffling tube 5, so that the space D of the balcony V is exposed to the outside. It is characterized in that a blow-off wall W ₄ , 10 is provided to define the space.

(Function) When operating by driving the fan 3,
The air blown out through the heat exchanger 2 passes from the blow-off hood 4 through the muffler 5, and from the blow-off port 20 of the blow-off wall W ₄ , 10 defining the space D of the balcony V to the outside, to the balcony. The air will be blown out of the space D of V, and the fan 3
The noise caused by the air blowing noise can be reduced, the comfort of the surrounding environment can be improved, and the problem of the short circuit can also be solved because the outdoor air taken in from the outside into the space D of the balcony V can be sucked in for heat exchange. It is.

(Embodiment) The first embodiment shown in FIG. 1 is mainly for installation on a balcony V provided on each floor of a building, and the balcony V shown in FIG.
W ₁ , a floor wall W ₂ extending outward with respect to the outer wall W ₁ , a ceiling wall W ₃ formed by the lower surface of the floor wall W ₂ on the upper floor, and a veranda wall erected at the outer edge of the floor wall W ₂ W ₄ , and the outer wall
The space D of the balcony V is defined from the outside by the wall surfaces W ₁ , the floor wall W ₂ , the ceiling wall W ₃ and the balcony wall W ₄ .

Therefore, the outdoor unit of the present invention is used by being installed on the floor wall _W2 of the balcony V configured as described above, and includes a main body casing 1 in which the outdoor heat exchanger 2 is installed, and an axial flow fan 3. It consists of a blow-off hood 4, a muffling cylinder 5, and a blow-off wall.

The main body casing 1 has a suction port 1 on its upper surface.
1, and the heat exchanger 2 is located outside the suction port 11 in the main body casing 1.
That is, when the main body casing 1 is installed on the balcony V, it is disposed on the inner side of the outer side.

The blow-off hood 4 is provided on the outside of the main casing 1, that is, on the outside of the heat exchanger 2, and the axial fan 3 is installed inside the blow-off hood 4 so that the upper end thereof is The fan mounting table 7 is fixed to the tube plate of the heat exchanger 2, and its lower end is fixed to the base 6 on which the main body casing 1 is placed and fixed. The air that has passed through the heat exchanger 2 is blown out toward the outside of the balcony V.

Further, as shown in FIGS. 3 and 4, the blow-off hood 4 is composed of a rectangular cylindrical connection portion 41 that covers the entire outer surface of the main body casing 1 and a cylindrical hood main body 42, and the An upper hook piece 43 that engages with the locking hole 12 provided on the upper surface of the main body casing 1 on the upper part of the portion 41 and is fixed with screws.
At the same time, a lower hooking piece 44 that engages with an engaging piece 61 provided on the base 6 on which the main body casing 1 is placed is extended at the lower part of the connecting portion 41, and each of the hooking pieces 43 and 44 are engaged with the locking hole 12 and the engagement piece 61, and the upper hook piece 43 is screwed to the main body casing 1, thereby attaching and detaching the blow-off hood 4 to the main body casing 1 freely.

Further, as shown in FIG. 3, a rectangular mounting flange 45 is provided on the outside of the hood main body 42, and the muffling cylinder 5 is mounted via this flange 45.

As shown in FIGS. 5 and 6, this muffling cylinder 5 has a rectangular cylindrical shape and is composed of an outer panel 51 made of a steel plate and a cylindrical inner panel 52 made of punched metal.
A sound-absorbing material 53 mainly made of rock wool is installed between the noise-absorbing tube 5 and the sound-absorbing tube 5. A rectifying tube 8 for rectifying the airflow from the fan 3 is attached to the center of the muffling tube 5.

This rectifier tube 8 has attachment portions 8 at both ends in the length direction.
An inner cylinder 83 made of a steel plate with holes 1 and 82, an outer cylinder 84 made of punched metal, and these inner cylinders 83
and a sound-absorbing material 85 interposed between the sound-absorbing member 84 and the outer cylinder 84, and is attached to the center of the muffler cylinder 5 via a stay 86.

Furthermore, an inner mounting flange 54 that is coupled to the mounting flange 45 of the outlet hood 4 is provided at the inner end of the muffling tube 5, and an outer mounting flange 55 that is coupled to the outlet wall is provided at the outer end. The fan 3 can be freely attached to and detached from the blow-off hood 4 via the inside mounting flange 55, and the blow-off hood 4 can be removed to perform maintenance and inspection of the fan 3 by detaching the noise-reducing cylinder 5 from the blow-off hood 4 and the blow-off wall. I try to do that.

Further, the blowing wall is a space D of the balcony V.
In the embodiment shown in FIG.
It is formed using W ₄ .

By doing so, there is no need to provide a special air outlet wall in addition to the balcony wall W ₄ , and the number of parts can be reduced accordingly. In this case, however, the air outlet 20 is formed in the balcony wall W ₄ . The outer mounting flange 55 of the muffler cylinder 5 is fixed around the air outlet 20.

In FIG. 1, reference numeral 13 is a refrigerant pipe that is continuous with the indoor unit installed indoors, and is connected to the compressor 14 and the outdoor heat exchanger 2 housed in the main body casing 1.

However, in the above configuration, the fan 3
When operating by driving the main body casing 1
, a suction port 11 provided on the upper surface of the casing 1.
The outdoor air from the space D of the balcony V is taken in from the space D, and the air that has passed through the heat exchanger 2 and exchanged heat with the heat exchanger 2 passes from the blow-off hood 4 to the muffling tube 5 and then to the balcony wall W. ₄ That is, the air is blown out to the outside into the space D of the balcony V through the air outlet 20 of the air outlet wall.

In this way, the air passing through the muffling tube 5 is rectified by the straightening tube 8, and the sound is absorbed by the sound absorbing material 53 of the muffling tube 5 and the sound absorbing material 85 provided on the straightening tube 5, so that the sound of the fan operation is not transmitted to the outside. This means that the amount of noise emitted can be reduced, and the noise emitted indoors as well as outdoors can be reduced.

In addition, the blowing air rectified by the straightening tube 8 is smoothly blown out with minimum ventilation resistance, and the blowing air blown out to the outside of the balcony wall W ₄ , that is, the blowing wall is Suction port 11
This also solves the so-called short circuit that causes a short circuit.

The first embodiment described above utilizes the balcony wall W ₄ as a blow-out wall, but the balcony wall W ₄ is not provided and the outer edge of the balcony V is made of, for example, a lattice frame or vertical frame. When a fence K is used, a blowout wall 10 is specially formed as in the second embodiment shown in FIG. It is installed through.

In this case, the blow-off wall 10 may simply be placed with its lower surface on the floor wall W ₂ of the balcony V, but it is preferable to fix it to the floor wall W ₂ .

Further, in the third embodiment shown in FIG. 7, a flexible material such as a canvas made of nylon or tarpaulin is used between the sound deadening tube 5 and the blowout wall _W4 , and mounting flanges 91 are provided at both ends. , 92, and a relay tube 9 having a bellows-like shape as a whole is interposed therebetween.

In this case, even if the shape of the balcony V has an arcuate outer edge as shown in FIG. 8, or if the depth dimension of the balcony V changes somewhat,
With the casing body 1 installed at a predetermined position with respect to the balcony V, the balcony wall W ₄ (blowout wall) erected along the outer edge of the balcony V is installed without changing the length of the sound deadening cylinder 5. Since the outside of the muffler 5 can be connected to the outlet 20, the muffler 5 can be used in common.

In the third embodiment described above, the relay tube 9 is used in the first embodiment shown in FIG. 1, but the relay tube 9 can also be used in the second embodiment shown in FIG.

In addition, in FIG. 7, 30 is a bird net,
This is to prevent insects, small birds, etc. from entering the inside of the muffling cylinder 5.

Further, when the outdoor unit configured as described above is installed on the balcony V, a plurality of outdoor units are installed in parallel as shown in FIG. 8, for example, but the installation method is not particularly limited.

(Effect of the invention) As described above, the present invention provides the suction port 11 on the outer periphery of the inner part that becomes the inside when the main body casing 1 containing the outdoor heat exchanger 2 is installed on the balcony V, and
An axial fan 3 having a blow-off hood 4 is disposed on the outside of the heat exchanger 2 so as to blow out the air that has passed through the heat exchanger 2 toward the outside of the balcony V, A muffling tube 5 having a rectifying tube 8 disposed inside is connected to the outside of the blow-off hood 4, and an air outlet 20 is connected to the outside of the muffling tube 5, so that the space D of the balcony V is exposed to the outside. Since the device is characterized in that a blowout wall W ₄ , 10 is provided to define the air, the air discharged through the heat exchanger 2 passes through the muffler cylinder 5 and is sound-absorbed by the muffler cylinder 5. The air is discharged to the outside from the air outlet 20 of the air outlet wall W ₄ , 10 into the space of the balcony V, so that the emission of operating noise from the fan 3 to the outside can be reduced, and it can be used not only indoors but also outdoors. It is also possible to reduce noise and improve the comfort of the surrounding environment. Moreover, the air discharged from the air outlet 20 is not short-circuited and sucked into the suction port 11, and therefore, it is possible to eliminate a decrease in heat exchange performance in the outdoor heat exchanger 2 due to the short circuit. It is.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing a first embodiment of the present invention, FIG. 2 is a schematic sectional view corresponding to FIG. 1 showing a second embodiment, and FIG. 3 is a front view showing an example of a blow-off hood. FIG. 4 is a partially cutaway side view of the blow-off hood, FIG. 5 is a front view showing an example of the muffling tube, FIG. 6 is a schematic cross-sectional view of the muffling tube, and FIG. 7 is a cross-sectional view showing the third embodiment. 1 is a schematic sectional view corresponding to FIG. 1, FIG. 8 is a plan view showing an example of use, and FIG. 9 is a schematic sectional view showing a conventional example. 1... Body casing, 2... Outdoor heat exchanger,
3... Axial fan, 4... Outlet hood, 5... Silence tube, 8... Rectifying tube, 9... Relay tube, 10... Outlet wall, 11... Suction port, 20... Outlet, D …
...Space, V...Balcony, W ₄ ...Balcony wall (blowout wall).

Claims (1)

[Scope of claims for utility model registration] (1) Main body casing 1 with outdoor heat exchanger 2 inside
A suction port 11 is provided on the outer periphery of the inner part that becomes the inner side when installed on the balcony V of the heat exchanger 2, and an axial flow fan 3 having a blow-off hood 4 is disposed on the outer side of the heat exchanger 2. While the air passing through the container 2 is blown out toward the outside of the balcony V, a muffling cylinder 5 having a rectifying cylinder 8 disposed inside is connected to the outside of the blow-off hood 4, and this muffling cylinder An outdoor unit for balcony installation, characterized in that an air outlet wall W ₄ , 10 having an air outlet 20 and defining a space D of the balcony V to the outside is disposed on the outside of the balcony V. (2) The outdoor unit for balcony installation according to claim 1 of the utility model registration claim, in which the muffling cylinder 5 is freely attachable to and detachable from the outlet hood 4. (3) The outdoor unit for balcony installation according to claim 1 or 2 of the utility model registration claim, in which a relay tube 9 made of a flexible material is interposed between the muffling tube 5 and the outlet walls W ₄ , 10. . (4) The outdoor unit for balcony installation according to claim 1, 2, or 3 of the utility model registration claim, in which the outlet wall is comprised of a balcony wall W ₄ that extends from the floor wall W ₂ of the balcony V.