JPS631131Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an outdoor drain pan for an air conditioner.

In an integrated air conditioner equipped with a conventional complete drain water treatment device, as shown in the longitudinal cross-sectional view in Fig. 1 and the side view in Fig. 2, during cooling operation, the refrigerant evaporated in the evaporator 4 and the arrow E are Moisture in the air passing through the evaporator 4 is removed by exchanging heat with the indoor air flowing as shown in FIG. Outdoor air heated by exchanging heat between the high temperature refrigerant discharged from the compressor 5 and outdoor air in the condenser 3 is caused to flow as shown by arrow F. At this time, the disc 11 is rotated by the splash motor 12 at a position slightly above the bottom 16a in the outdoor drain pan 16, and splashes drain water into the gap 3a of the condensers 3 arranged in parallel with a gap. Then, the drain water is evaporated in the condenser 3, and the drain water is completely treated.

Complete treatment of drain water involves attaching water droplets of drain water to the fins 3b of the condenser 3 and evaporating the water droplets.
The structure is such that the drain water that is partially evaporated and falls down the fin 3b and falls into the drain pan 16 is collected, so during cooling operation in the case of rain, rain from the outside flows down the fin 3b and falls into the outdoor drain pan 16.
The water level is balanced at the depth at which it overflows from the overflow port 16d.

Normally, there is no need to treat rainwater that flows into the air conditioner when it rains, so the splasher devices 11 to 1
The processing capacity in step 2 is sufficient if it can handle the amount of drain water generated inside the air conditioner unit, but if rainwater accumulates in the outdoor drain pan, the water level will rise and the water level will rise even after the rain has stopped. The rotational speed of the disk 11 decreases, and processing capacity is lost.

Therefore, in order to improve this point, if a splash motor 12 is used that does not reduce the number of revolutions of the disc 11 even when the water level is high, a motor with much higher torque than the motor required for normal drain water treatment will be used. , which consumes extra power, requires extra space for the motor, and is expensive in terms of cost.

This invention was proposed in view of these circumstances, and uses a small, low-torque splasher motor that is sufficient to treat the drain water generated inside the air conditioner unit, and temporarily lowers the water level in the outdoor drain pan. The purpose of the present invention is to provide an outdoor drain pan for an air conditioner in which the splasher disc does not fall below the rotation speed that can be used for drain water treatment even when the water rises. In an outdoor drain pan comprising a splasher disk whose lower end is immersed in water and splashes drain water to an upper condenser, the splasher disk surrounds the lower end of the splasher disk and is aligned in the rotational direction of the splasher disk. A rectangular U-shaped embankment with an open short side is provided, and the height of three sides of the U-shaped embankment is the same as or slightly higher than the height of the side wall of the drain pan.

An embodiment of the present invention will be explained with reference to the drawings.
FIG. 3 is a plan view thereof, and FIGS. 4 and 5 are sectional views taken along lines - and - in FIG. 3, respectively.

In the above figure, 20 is a U-shaped embankment that is provided in the outdoor drain pan 16 so as to surround the lower part of the disc 11 and has an opening 21 that opens in the rotational direction of the disc 11, and its height is equal to the side wall of the outdoor drain pan 16. Outdoor drain pan 16
An overflow port such as the overflow port 16d shown in FIG. 2 is provided to maintain the maximum water level h.

In such a structure, the outdoor drain pan 16
When water accumulates inside and the water level becomes high, first, unless the disk 11 is rotating, the water level h is approximately the same since the inside and outside of the embankment 20 are communicated through the opening 21.

Next, when the disc 11 begins to rotate in the direction of the arrow by the motor 12, the embankment 20
The water inside the embankment is discharged and the water level decreases, but when it reaches a certain water level l, it enters the embankment through the opening 21 due to the pressure caused by the amount of water discharged by the disc 11 and the water level difference h - l inside and outside the embankment. The amount of water is balanced.

At that time, the height of the embankment 20 is the outdoor drain pan 16.
Since the height is not lower than the height of the opening 21, water will not enter from other than the opening 21.

In this way, when the water level around the disk 11 decreases, the resistance of the water that the disk 11 receives decreases, so the rotation speed of the disk 11 increases, and the water is splashed up and sprinkled onto the condenser 3. The water is evaporated by the heat of the condenser 3, and the water is sequentially treated.

If the embankment 20 were not present, the water level around the disk would be approximately h, and at this time the disk 11 could not reach the rotation speed that would allow water to be sprinkled onto the condenser 3. , embankment 20 and disk 11
Due to the drainage function, the water level inside the embankment is lowered to l, the disc 11 can rotate at high speed, the water inside the embankment is treated by the high speed rotating disc 11, and water is sequentially replenished from the opening 21. Therefore, water outside the embankment is also treated, and therefore drain water can be treated even when the water level is high with a small, low torque motor that can only be used when the water level is low.

In short, according to the present invention, an outdoor drain pan is provided with a splasher disk having a horizontal rotation axis, rotating at high speed in a vertical plane, and having a lower end immersed in drain water that splashes drain water to an upper condenser. A rectangular U-shaped embankment with one short side open in the direction of rotation of the splasher disc is provided surrounding the lower end of the disc, and three of the U-shaped embankments are
By making the side height the same as or slightly higher than the side wall height of the drain pan, it is small and lightweight.
The present invention is extremely useful industrially because it provides a low-cost and energy-saving outdoor drain pan for an air conditioner.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view showing an integrated air conditioner equipped with a known complete drain water treatment device, and Fig.
3 is a plan view showing an embodiment of the present invention, and FIGS. 4 and 5 are sectional views taken along lines - and - in FIG. 3, respectively. DESCRIPTION OF SYMBOLS 1...Disc plate, 2...Splatter motor, 16...Outdoor drain pan, 16a...Bottom plate, 20...Dike, 21
…Aperture.

Claims (1)

[Scope of utility model registration request] An outdoor drain pan for an air conditioner comprising a splashback disk having a horizontal axis of rotation, rotating at high speed within a vertical plane, with its lower end immersed in drain water and splashing the drain water into a condenser above, characterized in that a rectangular U-shaped embankment is provided surrounding the lower end of the splashback disk and with one short side open in the direction of rotation of the splashback disk, and the height of the three sides of the U-shaped embankment is the same as or slightly higher than the height of the side walls of the drain pan.