Air guide type cooling system of air conditioner outdoor unit

By introducing a water curtain, fan, water spray nozzles, and water tank system into the outdoor unit of the air conditioner, combined with tap water input and fan exhaust, the problem of insufficient cooling efficiency and dirt accumulation of the outdoor unit in high-temperature environments is solved, achieving efficient heat dissipation and energy saving.

CN224680885UActive Publication Date: 2026-08-25ZHEJIANG HAOLI TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522121903.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-08
Publication Date
2026-08-25
Estimated Expiration
2035-10-08

AI Technical Summary

Technical Problem

Existing air conditioner outdoor units produce limited condensate in high-temperature environments, resulting in insufficient cooling efficiency. Furthermore, the condensate circulation is slow, making it easy for dirt to accumulate at the bottom of the outdoor unit, which is inconvenient to clean.

Method used

The outdoor unit of the air conditioner is equipped with a water curtain, fan, water spray nozzle, water tank and water pump. The condensate is guided to the outdoor unit through a second water pipe. Combined with the tap water input and the fan exhaust, convection is formed to accelerate the cooling of the condenser. The U-shaped condenser and air duct design enhance the heat exchange between the condenser and the low temperature air.

Benefits of technology

It improves the heat dissipation effect of the condenser, reduces the internal air temperature of the outdoor unit of the air conditioner, saves energy, reduces dirt accumulation, and improves the stability and energy-saving performance of the air conditioner.

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Abstract

The utility model discloses an air -cooled type cooling system of air conditioner outdoor unit, it includes water screen, fan, install in air conditioner outdoor unit side, be used for continuously with low temperature air of water screen entrance, after the air -cooled port on U -shaped condenser extraction to outside, a plurality of water spraying head, arrange respectively in water screen and condenser right above, water tank, install in the inside of air conditioner outdoor unit, arrange in the below of water screen and condenser, water pump, set up in the bottom in water tank, be equipped with first water pipe between water pump and water spraying head, third water pipe, one end is connected to the water inlet of water tank, the other end is connected to the water supply pipeline, three air inlet surfaces of the utility model are all installed water screen, and the remaining one side sets up fan, adopts U -shaped condenser, and installs it in the inside of fan, and the fan continuous work can export to the outside after the air that preliminary cooling through water screen through the air -cooled port, all low temperature air all will pass through condenser, and based on water circulation system, the heat dissipation effect of condenser is good.
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Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, and in particular to a wind-guiding cooling system for an outdoor unit of an air conditioner. Background Technology

[0002] Air conditioning generally includes several major parts such as cold / heat source equipment, cold / heat medium distribution system, terminal devices, and other auxiliary equipment; the main components include: refrigeration unit, water pump, fan and piping system, while the terminal devices are responsible for using the distributed cold and heat to specifically process the air condition so that the air parameters of the target environment meet certain requirements.

[0003] In related technologies, to achieve intelligent energy-saving and cooling functions in air conditioners, patent CN217357298U provides an intelligent cooling and energy-saving device and air conditioner. In this solution, a condensate collection unit collects and reuses the condensate generated by the air conditioner itself, using it to cool the air conditioner, thereby reducing the operating temperature of the outdoor unit and the temperature of the heat sink. This enables stable operation of the air conditioner, reduces its failure rate, and also saves water and lowers costs. However, in practical applications, the amount of condensate generated is limited, especially in high-temperature environments where the condensate itself contains heat, resulting in limited cooling effect on the condenser of the outdoor unit. Furthermore, due to the slow circulation of condensate, dirt easily accumulates at the bottom of the outdoor unit, requiring regular cleaning, which is inconvenient. To address the aforementioned technical issues, I previously filed a utility model patent application with application number 2025214940552, entitled "A Cooling System for an Air Conditioner Outdoor Unit." However, I have found that while the aforementioned structure can effectively improve the cooling effect on the condenser, its cooling efficiency is still not very high in hot weather and further improvements are needed. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a wind-guiding cooling system for an outdoor unit of an air conditioner.

[0005] The technical solution adopted in this utility model is: a ducted cooling system for an outdoor unit of an air conditioner, wherein a second water pipe is provided between the outdoor unit and the indoor unit of the air conditioner, the second water pipe being used to guide condensate water located in the indoor unit to the outdoor unit, the outdoor unit being provided with a U-shaped condenser, and an air vent being provided on the inner side of the condenser, the ducted cooling system comprising: At least one water curtain is arranged on the side of the outdoor unit of the air conditioner; A fan is installed on one side of the outdoor unit of the air conditioner to continuously draw the low-temperature air that enters from the water curtain to the outside through the air duct. Several water spray nozzles are fixed inside the outdoor unit of the air conditioner and are respectively arranged directly above the water curtain and the condenser; An upward-opening water tank is installed inside the outdoor unit of the air conditioner and is positioned below the water curtain and the condenser. A water pump is installed at the bottom of the water tank, and a first water pipe is provided between the water pump and the water spray head; The third water pipe is connected at one end to the water inlet of the water tank and at the other end to the tap water pipeline.

[0006] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0007] Preferably, there are three water curtains, which are respectively arranged on three sides of the outdoor unit of the air conditioner, and the fan is arranged on the remaining side.

[0008] Preferably, there are four water spray nozzles, three of which are arranged directly above the water curtain, and the remaining one is arranged directly above the condenser.

[0009] Preferably, the air vent faces the fan, and both the upper and lower ends of the condenser extend towards the side closer to the fan, forming an air outlet chamber between the condenser and the fan.

[0010] Preferably, the air vent is provided with a number of fins arranged at intervals.

[0011] Preferably, the first water pipe includes a first main pipe, a first multi-way connector, and several first branch pipes, wherein the first main pipe is connected between the water pump and the first multi-way connector, and the first branch pipes are disposed between the first multi-way connector and the water spray head.

[0012] Preferably, the second water pipe includes a second main pipe, a second multi-way connector, and several second branch pipes, wherein the second main pipe is connected between the indoor unit of the air conditioner and the second multi-way connector, and the second branch pipes are disposed between the second multi-way connector and the water spray head.

[0013] Preferably, the indoor unit of the air conditioner is provided with a water tank for holding the condensate, and the indoor unit of the air conditioner is provided with a drain outlet corresponding to the water tank, and one end of the second main pipe is connected to the drain outlet.

[0014] Preferably, the water tank is also provided with an overflow port, which is located above the water inlet. The overflow port is used to connect a fourth water pipe, one end of which extends to the outside of the air conditioner outdoor unit.

[0015] More preferably, the bottom of the water tank is provided with a drain outlet, which is used to connect to a drain pipe. The fourth water pipe and the drain pipe are both connected to the main drain pipe. An automatic drain pump is provided on the extension path of the drain pipe. The automatic drain pump is located inside the outdoor unit of the air conditioner. A liquid level float is installed in the water tank. A booster pump is provided on the extension path of the second water pipe.

[0016] Compared with the prior art, this utility model has the following advantages: 1. Of the four sides of the outdoor unit of the air conditioner, three are air intakes, each equipped with a water curtain. The remaining side is equipped with a fan and a U-shaped condenser, which is installed inside the fan. The fan operates continuously, drawing the air that has entered the outdoor unit from the water curtain and has already undergone preliminary cooling. This air is then drawn through the condenser's air vents into the air outlet chamber and finally discharged to the outside of the outdoor unit. During this process, all the low-temperature air passes through the condenser, resulting in good heat dissipation for the condenser. 2. By installing a water tank, spray nozzles, and a water pump inside the outdoor unit of the air conditioner, and connecting the water tank to an external tap, external tap water will continuously enter the water tank and be pumped to the spray nozzles. Condensate formed in the indoor unit of the air conditioner will also enter the spray nozzles. Each spray nozzle will continuously spray water onto the condenser and the water curtain paper. Combined with the continuous outward exhaust of the internal fan, the air inside the outdoor unit will be accelerated by convection, with a relatively high air volume and speed. The water on the water curtain paper will evaporate faster, thus lowering the temperature of the air entering the outdoor unit and lowering or maintaining the water temperature. This will better cool the condenser (the water on the condenser evaporates very quickly under the blowing of a large amount of low-temperature air), resulting in good heat dissipation. 3. After the water level in the water tank rises to the overflow port, the water inside will overflow into the main drain pipe through the fourth water pipe, thus ensuring that the water in the water tank continues to circulate and will not be too hot. In conjunction with the water curtain and fan, it can accelerate the cooling of the condenser and help save energy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the connection structure between the indoor unit and the outdoor unit of a cabinet-type air conditioner in one embodiment of this application; Figure 2 for Figure 1 Enlarged view of part A in the image; Figure 3 This is a schematic diagram of the top-view distribution of the condenser, fan, and water curtain in an outdoor unit of an air conditioner according to one embodiment of this application; Figure 4 This is a schematic diagram of the inner surface of the condenser in one embodiment of this application; Figure 5 This is a schematic diagram of the connection structure of a wall-mounted air conditioner indoor unit and an air conditioner outdoor unit in one embodiment of this application.

[0019] The attached diagram is labeled as follows: 1-Indoor air conditioner unit, 11-Water tank, 2-Outdoor air conditioner unit, 21-Condenser, 211-Air vent, 212-Fins, 22-Water curtain, 23-Sprayer head, 24-Water tank, 241-Inlet, 242-Overflow outlet, 25-First water pipe, 251-Water pump, 252-First main pipe, 253-First multi-way connector, 254-First branch pipe, 26-Fan, 27-Level float, 3-Second water pipe, 31-Booster pump, 32-Second main pipe, 33-Second multi-way connector, 34-Second branch pipe, 4-Third water pipe, 5-Fourth water pipe, 6-Sewage pipe, 61-Automatic sewage pump, 7-Main drain pipe.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0024] Detailed implementation plan: See below Figures 1-5 This utility model is a ducted cooling system for an air conditioner outdoor unit. A second water pipe 3 is provided between the air conditioner outdoor unit 2 and the air conditioner indoor unit 1. The second water pipe 3 is used to guide the condensate in the air conditioner indoor unit 1 to the air conditioner outdoor unit 2. The air conditioner outdoor unit 2 is provided with a U-shaped condenser 21. An air guide vent 211 is provided on the inner side of the condenser 21. The ducted cooling system includes: At least one water curtain 22 is arranged on the side of the outdoor unit 2 of the air conditioner; Fan 26 is installed on one side of the outdoor unit 2 of the air conditioner and is used to continuously draw the low-temperature air that enters from the water curtain 22 to the outside through the air duct 211. Several water spray nozzles 23 are fixed inside the outdoor unit 2 of the air conditioner and are respectively arranged above the water curtain 22 and the condenser 21; The water tank 24 with its opening facing upward is installed inside the outdoor unit 2 of the air conditioner and is located below the water curtain 22 and the condenser 21. A water pump 251 is installed at the bottom of the water tank 24, and a first water pipe 25 is provided between the water pump 251 and the water spray head 23. The third water pipe 4 is connected at one end to the inlet 241 of the water tank 24, and at the other end to the tap water pipeline.

[0025] In a preferred embodiment of this invention, there are three water curtains 22, which are respectively arranged on three sides of the outdoor unit 2 of the air conditioner, and the fan 26 is arranged on the remaining side.

[0026] Here, since the outdoor unit 2 of the air conditioner is generally rectangular, it has a top surface, a bottom surface and four sides. Therefore, by setting water curtains 22 on three of the sides and in conjunction with a filter screen, outside air can enter the outdoor unit 2 of the air conditioner through the water curtains 22.

[0027] Note that in this embodiment, by setting a fan 26 on the remaining side and installing a U-shaped condenser 21 inside the fan 26, the fan 26 works continuously. It can draw the air that has passed through the water curtain 22 and completed the initial cooling through the air guide 211 of the condenser 21 into the air outlet chamber, and then discharge it to the outside of the air conditioner outdoor unit 2. In this process, all the low-temperature air will pass through the condenser 21, which has a good heat dissipation effect on the condenser 21.

[0028] In this embodiment, there are four water spray nozzles 23, three of which are arranged directly above the water curtain 22, and the remaining one is arranged directly above the condenser 21.

[0029] Next, please refer to Figure 1 and Figure 3 As can be seen, in this embodiment, the air vent 211 faces the fan 26, and both the upper and lower ends of the condenser 21 extend towards the side closer to the fan 26, forming an air outlet chamber between the condenser 21 and the fan 26.

[0030] Here, a U-shaped condenser 21 is used, which can better enclose all the low-temperature air entering the air outlet chamber, thereby allowing the low-temperature air and the condenser 21 to have full contact and high heat exchange efficiency.

[0031] In addition, please see Figure 4 In order to ensure that the low-temperature air and the condenser 21 are in full contact during the process of guiding the low-temperature air, so as to better cool the condenser 21, in this embodiment, a number of fins 212 are arranged at intervals at the air guide 211.

[0032] Please see Figure 1 As can be seen, in this embodiment, the first water pipe 25 includes a first main pipe 252, a first multi-way connector 253 and several first branch pipes 254, wherein the first main pipe 252 is connected between the water pump 251 and the first multi-way connector 253, and the first branch pipes 254 are disposed between the first multi-way connector 253 and the water spray nozzle 23.

[0033] In addition, in this embodiment, the second water pipe 3 includes a second main pipe 32, a second multi-way connector 33 and several second branch pipes 34, wherein the second main pipe 32 is connected between the air conditioner indoor unit 1 and the second multi-way connector 33, and the second branch pipes 34 are disposed between the second multi-way connector 33 and the water spray head 23.

[0034] Next, please refer to Figure 1 and Figure 5 In this embodiment, the indoor unit 1 of the air conditioner (cabinet type or wall-mounted type) is provided with a water tank 11 for holding condensate, and the indoor unit 1 of the air conditioner is provided with a drain outlet corresponding to the water tank 11, and one end of the second main pipe 32 is connected to the drain outlet.

[0035] Next, please refer to Figure 1 and Figure 2 As can be seen, in this embodiment, the water tank 24 is also provided with an overflow port 242. The overflow port 242 is located above the water inlet 241. The overflow port 242 is used to connect the fourth water pipe 5. One end of the fourth water pipe 5 extends to the outside of the air conditioner outdoor unit 2.

[0036] Then, please see Figure 1 As can be seen, the bottom of the water tank 24 is provided with a drain outlet, which is used to connect to the drain pipe 6. The fourth water pipe 5 and the drain pipe 6 are both connected to the main drain pipe 7. An automatic drain pump 61 is provided on the extension path of the drain pipe 6. The automatic drain pump 61 is installed inside the air conditioner outdoor unit 2.

[0037] The automatic sewage pump 61 and sewage pipe 6 are installed here to periodically drain the dirt remaining at the bottom of the water tank 24. The working principle of the automatic sewage pump 61 is existing technology and will not be explained in detail here. The automatic sewage pump 61 can be operated remotely via a remote control.

[0038] Please see Figure 1 and Figure 2 In order to better see the water level in the water tank 24, a liquid level float ball 27 is installed in the water tank 24 in this embodiment.

[0039] More specifically, in order to more efficiently transport the condensate in the indoor unit 1 of the air conditioner to the spray nozzle 23, in this embodiment, a booster pump 31 is provided on the extension path of the second water pipe 3.

[0040] In addition, the booster pump 31 ensures that when the outdoor unit 2 is installed at a higher height than the indoor unit 1, the condensate formed in the indoor unit 1 can be smoothly delivered to the spray nozzle 23.

[0041] The working principle of the air-guided cooling system: When it is necessary to enhance the cooling effect of the condenser 21 in the outdoor unit of the air conditioner, the third water pipe 4 is connected to the outdoor unit 2, and one end of the third water pipe 4 is connected to a tap. Tap water is continuously supplied to the water tank 24. The water pump 251 located in the water tank 24 draws water from the water tank 24 to the spray nozzles 23. The condensate in the water tank 11 is also continuously supplied to the spray nozzles 23. Each spray nozzle 23 receives the condensate and tap water and sprays it downwards, cooling the condenser 21 and the water curtain paper located directly below the spray nozzles 23. The water flowing down from the spray will fall into the water tank 24. Since it is necessary to keep the water temperature in the water tank 24 low, the water in the water tank 24 needs to be drained in time. When the water level in the water tank 24 reaches the height of the overflow port 242, the water is discharged through the overflow port 242 into the fourth water pipe 5 and continues to be discharged to the outside of the outdoor unit 2 of the air conditioner.

[0042] Here, the outdoor unit 2 of the air conditioner has air intakes on three sides, with water curtains 22 installed on three sides and a fan 26 installed on the remaining side. A U-shaped condenser 21 is used, and the condenser 21 is installed inside the fan 26. The fan 26 works continuously, drawing the air that has entered the outdoor unit 2 from the water curtain 22 and has undergone preliminary cooling. After passing through the air guide 211 of the condenser 21, the air is drawn into the air outlet chamber and then discharged to the outside of the outdoor unit 2. During this process, all the low-temperature air passes through the condenser 21, which has a good heat dissipation effect on the condenser 21. In addition, by installing a water tank 24, a water spray nozzle 23, and a water pump 251 inside the outdoor unit 2 of the air conditioner, and connecting the water tank 24 to tap water, the external tap water will continuously enter the water tank 24 and be pumped to the water spray nozzle 23 by the water pump 251. The condensate formed at the indoor unit 1 of the air conditioner will also enter the water spray nozzle 23. Each water spray nozzle 23 will continuously spray water onto the condenser 21 and the water curtain 22 paper. With the continuous outward exhaust of the internal fan 26, the air inside the outdoor unit 2 of the air conditioner will be accelerated by convection, and the air volume and wind speed will be faster. The water on the water curtain 22 paper will evaporate faster, which will lower the temperature of the air entering the outdoor unit 2 of the air conditioner, and the water temperature will also be lowered or maintained at a low temperature. This will help to better cool the condenser 21.

[0043] It should be noted that, since a large amount of low-temperature air passes through the condenser 21 (please refer to the above for detailed principles), and with the low-temperature water continuously sprayed down by the self-spraying water nozzle 23, the water on the condenser 21 evaporates very quickly under the blowing of a large amount of low-temperature air, resulting in good heat dissipation.

[0044] The above description of the air-guiding cooling system for an outdoor unit of an air conditioner is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the inventive concept of the present invention and the contents of the present invention's specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A ducted cooling system for an outdoor unit of an air conditioner, characterized in that, A second water pipe is provided between the outdoor unit and the indoor unit of the air conditioner. The second water pipe is used to guide the condensate in the indoor unit to the outdoor unit. The outdoor unit is equipped with a U-shaped condenser, and an air vent is provided on the inner side of the condenser. The air-guided cooling system includes: At least one water curtain is arranged on the side of the outdoor unit of the air conditioner; A fan is installed on one side of the outdoor unit of the air conditioner to continuously draw the low-temperature air that enters from the water curtain to the outside through the air duct. Several water spray nozzles are fixed inside the outdoor unit of the air conditioner and are respectively arranged directly above the water curtain and the condenser; An upward-opening water tank is installed inside the outdoor unit of the air conditioner and is positioned below the water curtain and the condenser. A water pump is installed at the bottom of the water tank, and a first water pipe is provided between the water pump and the water spray head; The third water pipe is connected at one end to the water inlet of the water tank and at the other end to the tap water pipeline.

2. The air-guiding cooling system for an outdoor unit of an air conditioner according to claim 1, characterized in that, There are three water curtains, which are respectively arranged on three sides of the outdoor unit of the air conditioner, and the fan is arranged on the remaining side.

3. The air-guiding cooling system for an outdoor unit of an air conditioner according to claim 2, characterized in that, There are four water spray nozzles, three of which are arranged directly above the water curtain, and the remaining one is arranged directly above the condenser.

4. The air-guiding cooling system for an outdoor unit of an air conditioner according to claim 3, characterized in that, The air duct is directly opposite the fan, and both the upper and lower ends of the condenser extend towards the side closer to the fan, forming an air outlet chamber between the condenser and the fan.

5. The air-guiding cooling system for an outdoor unit of an air conditioner according to claim 4, characterized in that, The air vent is provided with several fins arranged at intervals.

6. A ducted cooling system for an outdoor unit of an air conditioner according to any one of claims 1-5, characterized in that, The first water pipe includes a first main pipe, a first multi-way connector, and several first branch pipes, wherein the first main pipe is connected between the water pump and the first multi-way connector, and the first branch pipes are disposed between the first multi-way connector and the water spray head.

7. The air-guiding cooling system for an outdoor unit of an air conditioner according to claim 6, characterized in that, The second water pipe includes a second main pipe, a second multi-way connector, and several second branch pipes, wherein the second main pipe is connected between the indoor unit of the air conditioner and the second multi-way connector, and the second branch pipes are disposed between the second multi-way connector and the water spray head.

8. The air-guiding cooling system for an outdoor unit of an air conditioner according to claim 7, characterized in that, The indoor unit of the air conditioner is provided with a water tank for holding the condensate, and the indoor unit of the air conditioner is provided with a drain outlet corresponding to the water tank. One end of the second main pipe is connected to the drain outlet.

9. The air-guiding cooling system for an outdoor unit of an air conditioner according to claim 6, characterized in that, The water tank is also provided with an overflow port, which is located above the water inlet. The overflow port is used to connect a fourth water pipe, one end of which extends to the outside of the air conditioner outdoor unit.

10. The air-guiding cooling system for an outdoor unit of an air conditioner according to claim 9, characterized in that, The bottom of the water tank is provided with a drain outlet, which is used to connect to a drain pipe. The fourth water pipe and the drain pipe are both connected to the main drain pipe. An automatic drain pump is provided on the extension path of the drain pipe. The automatic drain pump is located inside the outdoor unit of the air conditioner. A liquid level float is installed in the water tank. A booster pump is provided on the extension path of the second water pipe.

Citation Information

Patent Citations

  • Intelligent cooling and energy-saving device of air conditioner and air conditioner

    CN217357298U