JPH0289931A - Drain pan structure of air conditioner - Google Patents

Abstract

PURPOSE:To prevent a splashing of drain water caused by a sucking of air into a drain pipe from being carried out by a method wherein a drain splashing preventing fitting is arranged at an upper part of a drain port of a drain pan. CONSTITUTION:A drain splashing preventing fitting 1 is arranged on a drain pan 2 and a water discharging port 10. The drain splashing preventing fitting 1 is comprised of, for example, a plate closing a rear side of the water discharg ing port 10 and another plate covering an upper side. A removable closing plate 5 is fixed to a right side. A left side becomes an opening 11 to act as air and drain water inlet or outlet port. A longitudinal recess hole of the fixing plate 6 is fitted to a welding nut of the drain pan 2 so as to eliminate a right and left vibration. The upper plate of the drain splashing preventing fitting 1 is bent in compliance with an angle of the drain pan so as to prevent its forward are rearward movement. With this arrangement as above, much of the drain water splashed by an inverse flow of air may strike against a rear surface plate of the splash preventing fitting 1, the upper plate and the closing plate near the discharging port 10 and then the water drops onto the drain pan 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to prevention of water scattering due to backflow of air from the drain port of the BAri drain pan.

[Conventional technology]

In the conventional equipment, as described in Hitachi Scroll Air Conditioner Neattopia Yukao Urgent Service Mania # (PAH-8604) P2O, a drain trap of about 100 fl is installed at the final outlet of the drain distribution outside the drain unit. has become common. But drain trap ri
There was a problem in that the construction contractor did not always install the drain trap reliably because it was done during installation work.

[Invention tries to solve! [wA] Due to the above-mentioned conventional technology rtJJL site, there were many cases in which the local contractor sometimes forgot to install the drain trap or did not know about it.

The purpose of the present invention is to eliminate the need for a drain trap ert on site and prevent water leakage due to water splashing, and furthermore, to eliminate the need for a drain trap, thereby reducing the need for on-site work. shall be.

[Means to solve the problem]

In order to achieve the above object, the present invention installs a drain splash prevention fitting for preventing water from splashing above the drain port of a drain pan.

That is, in order to prevent water scattering due to backflow of drain water caused by air being sucked into the drain pipe, a drain failure prevention fitting is installed to surround the drain port of the drain pan.

At this time, only one direction toward the center of the drain bar serves as an opening for draining the drain.

[Effect]

In order to prevent water from scattering due to backflow of drain water caused by air being sucked into the drain pipe J, place a drain pipe around the drain opening of the drain pan! Install L-prevention fittings.

At this time, make sure that the center of the drain pan is the same (λ) as only one direction will serve as an opening for draining the drain.

By installing something with the above structure, even if a full backflow occurs and the drain water is splashed, the drain water can be protected from above and around the drain by using the four drain splinter prevention devices. It will hit so that it will fall downwards.

9. On the other hand, by increasing the area of the opening to create a source of water splashing, the wind speed can be increased and the distance and distance for water splashing can be reduced. The end of the opening on the back cover side is bent to prevent water from getting stuck to the surface cover. By setting the distance between the drain port and the opening at least a certain length, water splashing from the opening can be further suppressed, so that the splashed water does not directly splash on the woven net, etc., thereby preventing water leakage. Also,
Regarding drain water falling from the heat exchanger, since the upper plate is tilted forward, there is no splashing of water back onto the back cover of the air conditioner.

Also, since the side with no side plate opposite to the opening is higher than the top plate, water splashes onto the side plate, causing
4.Since it does not adhere to the side cover of the rock, water leakage can be prevented.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

FIG. 1 shows the structure of a drain pan of an air conditioner equipped with a drain water scattering preventer according to the present invention.

Normally, the drain pipe has a negative pressure at the upper part of the drain pan 2, so a drain trap is provided to prevent drained water from flowing back. However, the installation of a drain trap!
Since iri is a local work unit, some workers may forget to install it or lack the knowledge from the beginning, resulting in complaints of water leakage after operation. For the above reasons, a drain scattering prevention fitting l was installed on the drain pan 2 and above the drain port 10 as shown in FIG. A detailed view as seen from Pfli is shown in Fig. 2, a detailed view as seen from the Q side is shown in Fig. 88, and a detailed view as seen from the R side is shown in Fig. 4. Further, FIG. 45 shows a rear view of the drain scattering prevention fitting 1 seen from the side 8 in FIG. 4. As shown in FIGS. 2 and 4, the structure of the drain scattering prevention fitting 1 includes a plate that blocks the rear side of the water inlet IO and a plate that covers the upper side, and a removable stopper 5 is attached to the right side. There is. The left side is an opening fls11, which serves as an inlet and outlet for air 2 and drain water. The installation method is to fit the long notch of the fixing plate 6 into the weld nut of the drain pan 2, as shown in Figure 5, to eliminate the right and left misalignment, and then bend the upper plate of the drain scattering prevention fitting l to match the angle of the drain pan. This prevents forward and backward movement.

Next, the water scattering prevention effect will be explained. Water splashing from drain water is
The drain can be blown away by the backflow of air, but most of the blown water is removed from the drain splash prevention fitting l near the drain port 10.
It hits the back plate, top plate, and fender 5, and falls onto the drain pan 2. This prevents water from splashing onto the back cover and the right inner cover 8. By setting the distance between the opening 11 of the drain scattering prevention fitting 1 and the drain port to be more than a certain distance, more water will hit the inner surface of the drain scattering prevention fitting AI and flow onto the drain pan 2. By increasing the opening area of the drain/flying prevention fitting l, it is possible to reduce the wind speed and the distance of water splashing.

The back cover 411 of the opening 11 is provided with a fold back to stop most of the water splashing there, thereby reducing the risk of water leakage.

Next, the drain water that falls onto the drain scattering prevention fitting 1 is placed on the drain pan 2 diagonally, so that it is easy for the drain water to splash forward due to the falling drain water. It is becoming difficult to attach. Drain pan 2 without accumulating again V? -Flows. As shown in Fig. 2, by making the bulge 5 larger than the upper plate, water splashed onto the 7-length plate 5 is prevented from splashing onto the 7-length holder 5, and from directly hitting the cabinet. do. Figures 1 to 5 show the drain outlet 10 on the right side.
Although the case shown is that the crystal is mounted with pressure on the right side, consideration should be given to the case. Even if it is installed on the left side, the installation method is the same, and it is only necessary to attach the bulge 5 to the pressure side of the drain scattering prevention fitting 1.

As described above, according to this embodiment, the effect of preventing water scattering can be seen.

〔Effect of the invention〕

According to the present invention, since it is possible to prevent water from scattering from the drain pan, there is an effect of preventing water leakage from the unit.

[Brief explanation of drawings]

FIG. 1 shows an overall view of a drenovan structure in which a water-scattering prevention fitting according to an embodiment of the present invention is installed. Figure 2 shows a side view as seen from the P side in Figure 1, Figure 8 is a comparative top view seen from the Q side in Figure 1, and Figure 4 is a side view from the P side in Figure 1. Show the diagram. FIG. 5 shows a rear view seen from the S side of FIG. 4. l...Drain scattering prevention fitting 2...Drain bar/8
...Right armpit cover 4...Back cover 5...Full length gear 6...Fixing plate. Gi 4 diagram pole diagram 1 Doshin $lache J force lL- Kim robbing Kim hard busy ALL Fusungi tree (

Claims (1)

[Claims] A drain pan structure for an air conditioner, characterized in that the air conditioner has a blower and an evaporator upstream thereof, and a drain pan below the evaporator, and is equipped with a water splash prevention device due to backflow of drain water.