JPS5825206Y2 - cooling coil - Google Patents

Description

[Detailed description of the invention] This invention relates to a cooling coil in which multiple split coils are stacked one above the other. It is an object of the present invention to provide a cooling coil that can extremely easily process drain.

Generally, when cooling a large room, it is necessary to make the cooling coil large to obtain sufficient cold air.

However, if the size of the cooling coil is increased, the number of stages of coils increases, which makes manufacturing difficult, and also makes it difficult to transport the coil and to attach it to the casing of the air conditioner.

Conventionally, this problem was solved by dividing the cooling coil into a plurality of parts and stacking them one above the other.

However, in this split configuration, as a method of processing the drain generated in the upper coil, a drain tray is provided above the lower split coil, and a drain pipe is attached to this drain tray to treat the drain generated in the upper split coil. However, with this structure, large air conditioners require a large drain tray, which increases the manufacturing cost.Furthermore, since the drain pipe is installed inside the main casing of the air conditioner, clamping materials and A connecting member is required, and installation work within a limited space within the casing is extremely difficult and troublesome.

Therefore, the present invention focuses on the fact that the cooling coil is provided with upper and lower frame plates, and among these upper and lower frame plates, especially the upper plate of the lower divided coil is formed into a dish shape, and this upper plate is also used as a drain tray. By interposing a hollow pipe between the upper and lower frame plates, and fixing both ends of the pipe to the upper and lower frame plates and opening them to dispose of the drain generated in the upper coil, manufacturing costs can be reduced, and the drain can be removed. This ensures that the process can be carried out reliably.

The embodiment of the cooling coil of the present invention will be described in detail below based on the drawings.The air conditioner shown in FIG. , 4a are stacked vertically, and a centrifugal fan 5 and an electric motor 6 are provided on the back side. A suction port 8 is provided, and an air outlet 10 is provided in the upper portion, that is, the top plate 9.

Then, the refrigerant is passed through each of the divided coils 4゜4a, and the indoor air introduced into the main body casing 1 from the suction port 8 by rotating the fan 5 is cooled by the divided coil 4 and blown into the room from the outlet 10. That's why.

Each of the divided coils 4, 4a has tube plates 13, 1 having a U-shaped cross section at the inner ends of the rectangular upper frame plate 11 and lower frame plate 12.
4 are mounted facing each other, a plurality of cooling pipes 15 are supported on the tube plates 13 and 14, and these cooling pipes 15 are connected to each other by a header 16. Each cooling pipe 15 is formed by providing a plurality of fins 17 at predetermined intervals, and two or more divided coils may be provided and stacked one above the other. It's good.

According to the present invention, in the air conditioner as described above, among the divided coils 4 and 4a, especially the lower divided coil 4 is formed as shown in the figure.

That is, the upper frame plate 11 of the split coil 4 is formed into a dish shape, and the width of the upper frame plate 11 and the lower frame plate 12 is made larger than the width of the fins 17 provided perpendicularly to the upper and lower frame plates 11 and 12. Through holes 18 and 19 are provided in the protruding portions of the upper frame plate 11 and the lower frame plate 12 that are formed to be large and protrude outward from the fins 17 and at the intermediate portions in the length direction, and each of the through holes 18,
A hollow pipe 20 is attached to 19, and both ends of the pipe 20 are opened to the through holes 18 and 19.

Then, the drain generated by the split coil 4a disposed above the split coil 4 is dripped into the upper frame plate 11 of the split coil 4, and this drain is guided to the through hole 18 and the hollow pipe 2.
0 from the through hole 19 of the lower frame plate 12 to the main body casing 1
The drain generated by the split coil 4 is directly dripped onto the bottom plate of the main body casing 1.

The drain dripping onto the bottom plate is discharged from the bottom frame 21 to the outside through a hole provided in the bottom plate.

Further, a drain splash receiving plate 22 whose one end projects into the upper frame plate 11 of the split coil 4 is provided on the front side and the back side of the lower part of the split coil 4a. The drain blown away by the indoor air passing between the cooling pipe 15 and the fins 17 is received and dripped into the upper frame plate 11 of the split coil 4.

The drain splash receiving plate 22 is the upper frame plate 1 of the lower divided coil 4.
1 may be extended.

Also, the size of the upper divided coil 4a is the same as that of the lower divided coil 4.
, and drain is dripped into the upper frame plate 11 of the lower divided coil 4 along the side edge of the lower frame plate of the upper divided coil 4a, or the lower frame of the upper divided coil 4 is The plate may also be formed into a dish shape, with through holes formed at appropriate locations, and the drain may be dripped into the upper frame plate 11 of the lower divided coil 4 through the through holes.

As described above, in the present invention, the width of the rectangular upper and lower frame plates of the lower divided coil, which are stacked vertically, is made larger than the width of the fin, and the upper plate is formed into a dish shape, and the drain receiving plate is formed. Because it can be used as a drain tray, there is no need to separately install a drain tray between each divided coil, and the upper plate, which is a component of the divided coil, can be used as a drain tray, especially in large air conditioners. There is no need to manufacture each of the coils from a separate member, and the manufacturing cost can be reduced, and the gap between each divided coil can be reduced, allowing the height of the entire air conditioner to be reduced.

Furthermore, the present invention has a hollow pipe that serves as a drain pipe fixed between the through holes provided in the longitudinally intermediate portion of the upper and lower frame plates in the portion that protrudes outward from the fin width of the lower divided coil. Since the drain pipe is integrally formed with the lower divided coil, there is no need for clamping materials or connecting members for arranging the drain pipe, and there is also no need for installation work in a limited space. The lower divided coil can be reinforced by the drain pipe.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view showing the state of use, and FIG. 2 is a perspective view of the cooling coil. 4.4a...Split coil, 11...Upper frame plate, 20...Hollow pipe, 12...
Lower frame board.

Claims (1)

[Scope of utility model registration request] In the cooling coils 4, 4a in which a plurality of divided coils 4, 4a are stacked vertically, the width of the rectangular upper and lower frame plates 11.12 of the lower divided coil 4 is defined as the width of the upper and lower frame plates 11.1.
The upper and lower frame plates have a shape larger than the width of the fins 17 provided perpendicularly to the fins 17, and the upper and lower frame plates 11 are formed into a dish shape to double as a drain tray, and the upper and lower frame plates protrude outward beyond the width of the fins 17. Through holes 18 and 19 are provided in the protruding portion of 11.12 and at the intermediate portion in the length direction, and each of these through holes 1
A cooling coil characterized in that a hollow pipe 20 is fixedly provided between 8 and 19.