JPH042328Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a dew condensation prevention structure for a ceiling-mounted air conditioner. This invention relates to a condensation prevention structure for a ceiling-mounted air conditioner equipped with a decorative panel having an outlet.

(Conventional technology) Generally, when an air conditioner is in cooling operation, condensation occurs around the outlet grille, and a dew condensation prevention structure is applied to a ceiling-suspended air conditioner to prevent this condensation from occurring. 1985-
This is already known from Publication No. 49461.

However, the ceiling-suspended air conditioner described in the above publication has a main body casing 1
A fan 2 and a heat exchanger 3 are provided inside the casing 1 to face each other, a drain pan 4 is provided below the heat exchanger 3, and a drain pan 4 is provided at the front side of the casing 1 in the blowing direction of the fan 2. A blow-off grill G is provided so that the air cooled by the heat exchanger 3 is blown out from the grill G toward the indoor side, and air is discharged between the lower wall of the casing 1 and the bottom wall of the drain pan 4. A passage T is formed, and one side of the air passage T is opened to the inlet side of the heat exchanger 3, and the other side is opened near the grille G.

Thus, during cooling operation by the air conditioner,
A portion of the indoor air blown from the fan 2 and before passing through the heat exchanger 3, that is, the warm indoor air before being cooled by the heat exchanger 3,
The air is blown out to the vicinity of the grille G through the air passage T and warms the grille G, thereby preventing dew condensation from forming around the grille G.

(Problem to be solved by the invention) By the way, the condensation prevention structure explained above was applied to a ceiling-suspended air conditioner, but this ceiling-suspended type air conditioner and a ceiling-embedded type are different from each other. The various parts and their mounting structures are fundamentally different from air conditioners.In other words, in ceiling-mounted air conditioners, a thin decorative panel is attached to the lower side of the main body casing, and the decorative panel is attached to the lower side of the main body casing. The air inlet and outlet are formed in the panel, so the conventional condensation prevention structure described above cannot be applied to such ceiling-mounted air conditioners. It is.

The purpose of the present invention is to utilize the internal space of the decorative panel in a ceiling-mounted air conditioner to form part of the warm indoor air blown from the fan and before passing through the heat exchanger onto the decorative panel. By detouring around the air outlet and blowing out to the outside,
It is an object of the present invention to provide a dew condensation prevention structure for a ceiling-embedded air conditioner that can reliably prevent dew condensation from occurring all around the air outlet.

(Means for solving the problem) The dew condensation prevention structure of the ceiling-mounted air conditioner according to the present invention is as shown in the drawing.
and a ceiling-embedded air conditioner in which a decorative panel 5 having an inlet 51 and an outlet 52 is attached to the lower part of the main casing 1 in which the fan 2 is installed,
Both sides in the width direction of the air outlet 52 in the decorative panel 5 are hollow to form first and second air passages 6 and 7 along the length direction of the air outlet 52. , said fan 2
The first air passage 6 located on the side is connected to the air inlet side of the indoor heat exchanger 3 via the communication passage 8, while one longitudinal side of the first air passage 6 is connected to the air inlet side of the indoor heat exchanger 3 through the communication passage 8.
It is characterized in that an air outlet 9 is provided in communication with one longitudinal side of the second air passage 7 and on the other longitudinal side of the second air passage 7.

(Function) During the cooling operation of the ceiling-mounted air conditioner, part of the warm indoor air blown out from the fan 2 and before passing through the heat exchanger 3,
introduced into the first air passage 6 formed on one side in the width direction of the air outlet 52 via the communication passage 8;
The air is blown from the first air passage 6 to the air outlet 9 through the second air passage 7 formed on the other side of the air outlet 52. That is, the warm air before passing through the heat exchanger 3 is blown out. Indoor air is advected through each of the air passages 6 and 7 so as to bypass the outlet 52, so that the outlet 52 is warmed by the indoor air, and the outlet 52 is heated by the indoor air.
This prevents dew condensation from occurring over the entire area.

(Example) The dew condensation prevention structure of a ceiling-mounted air conditioner according to the present invention will be explained below with reference to an example shown in the drawings.

Figure 1 shows the overall structure of a ceiling-mounted air conditioner.
and an indoor heat exchanger 3 are provided facing each other, and a drain pan 4 is provided at a lower position of the heat exchanger 3,
A decorative panel 5 is attached to the lower side of the main body casing 1, and the fan 2 is mounted on one side of the decorative panel 5.
A suction port 51 for indoor air is formed at a position opposite to the decorative panel 5, while a cooling air cooled by the heat exchanger 3 is formed at the front side of the heat exchanger 3 in the air blowing direction on the other side of the decorative panel 5. An air outlet 52 is formed to blow out the air to the indoor side.

Therefore, the dew condensation prevention structure of the above-described ceiling-mounted air conditioner was constructed as follows.

That is, the air outlet 5 in the decorative panel 5
Both sides of the air outlet 52 in the width direction are hollow, and the hollow portions form first and second air passages 6, 7 extending along the length direction on both sides of the air outlet 52 in the width direction. Air passage 6, 7
Among them, the first air passage 6 located on the fan 2 side is communicated with the air inlet side on the back side of the heat exchanger 3 via the communication passage 8, while the length of the first air passage 6 is One side in the direction is the second air passage 7.
The second air passage 7 is connected to the second air passage 7 on one side in the length direction, and the second air passage 7 is provided with an air outlet 9 opening to the outside on the other side in the length direction.

Specifically, as shown in FIGS. 2 to 4, two air outlets 52 are arranged in parallel on both left and right sides of the decorative panel 5, and an air outlet grill 52 is attached to each air outlet 52, respectively. Each of the air outlets 52
The first air passage 6 is formed on the side of the fan 2 to extend continuously in the left-right direction along each outlet 52, while the first air passage 6 is formed on the other side of each outlet 52. While the second air passage 7 is formed in parallel, a first communication passage 10a is formed on the right end side in the length direction of each of the air passages 6 and 7, and a first communication passage 10a is formed in the middle part of each of the air passages 6 and 7. A second communication passage 10b is provided inside the partition wall defining the outlet 52, and the air passages 6 and 7 are communicated with each other via the communication passages 10a and 10b.

One end in the width direction is opened to the air inlet side of the heat exchanger 3 in a part of the back side of the drain pan 4, and three first to third branch passages 8a, 8b extend radially from this opening side. , 8c is formed, and this communication passage 8 is made to communicate with the first air passage 6.

Further, mounting frames 5a are attached to the left and right ends of the decorative panel 5, respectively, and a plurality of air outlets 9 are opened in the left mounting frame 5a, and these air outlets 9 are clearly shown in FIG. It is connected to the left end side in the length direction of the second air passage 6 in a straight line.

By doing so, during the cooling operation of the air conditioner, a part of the warm indoor air blown out from the fan 2 and before passing through the heat exchanger 3,
As shown by the dotted line arrows in FIG. Second communication path 10a, 10
b to the second air passage 7, and then blown out through the air passage 7 to the air outlet 9. That is, the warm indoor air before passing through the heat exchanger 3 is , each of the air passages 6, 7
The air is then blown out from the air outlet 9 to the outside, bypassing the surroundings of each air outlet 52. Therefore, during cooling operation of the air conditioner, the entire area around each outlet 52 is warmed by the indoor air, and dew condensation is prevented from forming over the entire area of each outlet 52.

(Effect of the invention) As explained above, in the dew condensation prevention structure of the ceiling-embedded air conditioner according to the present invention, both sides of the air outlet 52 in the decorative panel 5 in the width direction are hollow, and the length of the air outlet 52 is First and second air passages 6 and 7 are formed along the direction, and among the air passages 6 and 7, the first air passage 6 located on the side of the fan 2 is connected to the interior of the room via a communication passage 8. It communicates with the air inlet side of the heat exchanger 3, and one lengthwise side of the first air passageway 6 communicates with one lengthwise side of the second air passageway 7. Since the air outlet 9 is provided on the other side in the length direction, it is possible to reliably prevent dew condensation from occurring all around the air outlet 52.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view of a ceiling-embedded air conditioner equipped with the dew condensation prevention structure of the present invention, Figure 2 is a front view of a decorative panel, Figures 3 and 4 are Figures 2-X, Y
5 is an enlarged sectional view taken along line Z-Z in FIG. 2, and FIG. 6 is a sectional view showing a conventional example. 1... Body casing, 2... Fan, 3...
Heat exchanger, 5... Decorative panel, 51... Suction port,
52... Air outlet, 6... First air passage, 7... Second air passage, 8... Communication passage, 9... Air outlet.

Claims (1)

[Scope of utility model registration request] A suction port 51 and a blowout port 52 are provided at the bottom of the main body casing 1 in which the indoor heat exchanger 3 and the fan 2 are installed.
In the ceiling-embedded air conditioner equipped with a decorative panel 5 having a structure, both sides of the air outlet 52 in the decorative panel 5 in the width direction are hollow, and first and second air outlets 52 are arranged along the length direction of the air outlet 52. A first air passage 6 that forms air passages 6 and 7 and is located on the fan 2 side among the air passages 6 and 7;
communicates with the air inlet side of the indoor heat exchanger 3 via the communication passage 8, while the first air passage 6
One lengthwise side of the ceiling-embedded ceiling mount is connected to one lengthwise side of the second air passage 7, and an air outlet 9 is provided on the other lengthwise side of the second air passageway 7. Condensation prevention structure for built-in air conditioners.