Cooling system of air conditioner outdoor unit

By installing a water tank, spray nozzles, a water pump, and a fan inside the outdoor unit of the air conditioner, and using tap water and condensate water to spray the condenser, the problems of insufficient condensate water and dirt accumulation are solved, achieving efficient cooling and energy-saving effects.

CN224284812UActive Publication Date: 2026-05-26ZHEJIANG HAOLI TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HAOLI TECHNOLOGY CO LTD
Filing Date
2025-07-17
Publication Date
2026-05-26

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    Figure CN224284812U_ABST
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Abstract

The utility model discloses a cooling system of an air conditioner outdoor unit, which comprises a water spraying nozzle fixed in the air conditioner outdoor unit, and condensate water formed in an air conditioner indoor unit is conveyed to the water spraying nozzle from a second water pipe; the water tank with an upward opening is installed in the air conditioner outdoor unit and arranged under the water spraying nozzle, and the condenser is arranged between the water spraying nozzle and the water tank; the water suction pump is arranged at the bottom in the water tank, and a first water pipe is arranged between the water suction pump and the water spraying nozzle; one end of the third water pipe is connected to the water inlet of the water tank, and the other end of the third water pipe is externally connected to a tap water pipeline. Tap water and condensate water jointly cool the condenser in a spraying manner, and when the water level in the water tank rises to the overflow port, water in the water tank overflows into the main sewer pipe through the fourth water pipe; therefore, continuous circulation of water in the water tank can be guaranteed, high temperature is avoided, the condenser is cooled in cooperation with the fan located in the air conditioner outdoor unit, the cooling effect is good, and energy saving is facilitated.
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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 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 allows for stable operation of the air conditioner, reduces its failure rate, and saves water, lowering 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 a 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. Utility Model Content

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

[0005] The technical solution adopted by this utility model is: a 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 fan and a condenser, and the cooling system comprising:

[0006] A water spray nozzle is fixed inside the outdoor unit of the air conditioner, and the outlet end of the second water pipe is connected to the water spray nozzle;

[0007] An upward-opening water tank is installed inside the outdoor unit of the air conditioner and is positioned directly below the water spray nozzle. The condenser is positioned between the water spray nozzle and the water tank, and the fan is used to continuously blow air onto the condenser.

[0008] 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;

[0009] 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.

[0010] 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.

[0011] 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.

[0012] Preferably, the bottom of the water tank is provided with a drain outlet, which is used to connect to a drain pipe. Both the fourth water pipe and the drain pipe are connected to the main sewer pipe.

[0013] Preferably, an automatic sewage pump is provided along the extension path of the sewage pipe, and the automatic sewage pump is installed inside the outdoor unit of the air conditioner.

[0014] Preferably, the water tank is equipped with a liquid level float.

[0015] 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 water pipe is connected to the drain outlet.

[0016] More preferably, a booster pump is provided along the extension path of the second water pipe.

[0017] Compared with the prior art, this utility model has the following beneficial effects:

[0018] 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, the external tap water continuously flows into the water tank and is pumped to the spray nozzles. Condensate formed in the indoor unit of the air conditioner also enters the spray nozzles. This effectively uses tap water and condensate to cool the condenser through a spraying method. After the water level in the tank rises to the overflow port, the water inside overflows into the main drain pipe through a fourth water pipe, ensuring continuous water circulation in the tank and preventing it from getting too hot. This, combined with the fan located in the outdoor unit, effectively cools the condenser, resulting in good cooling performance and energy savings. Attached Figure Description

[0019] 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.

[0020] 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;

[0021] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0022] Figure 3 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.

[0023] The attached diagram is labeled as follows: 1-Indoor air conditioner unit, 11-Water tank, 2-Outdoor air conditioner unit, 21-Condenser, 22-Sprinkler head, 23-Water tank, 231-Inlet, 232-Overflow outlet, 24-First water pipe, 241-Water pump, 25-Fan, 26-Level float, 3-Second water pipe, 31-Booster pump, 4-Third water pipe, 5-Fourth water pipe, 6-Sewage pipe, 61-Automatic sewage pump, 7-Main drain pipe.

[0024] 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

[0025] 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.

[0026] 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.

[0027] 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 those features. 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. If 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.

[0028] Detailed implementation plan: See below Figures 1-3 This utility model relates to a 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 equipped with a fan 25 and a condenser 21. The cooling system includes:

[0029] The water spray nozzle 22 is fixed inside the outdoor unit 2 of the air conditioner, and the outlet end of the second water pipe 3 is connected to the water spray nozzle 22.

[0030] The water tank 23 with its opening facing upward is installed inside the outdoor unit 2 of the air conditioner and is located directly below the water spray nozzle 22. The condenser 21 is located between the water spray nozzle 22 and the water tank 23. The fan 25 is used to continuously blow air onto the condenser 21.

[0031] A water pump 241 is installed at the bottom of the water tank 23, and a first water pipe 24 is provided between the water pump 241 and the water spray head 22.

[0032] The third water pipe 4 is connected at one end to the inlet 231 of the water tank 23, and at the other end to the tap water pipe.

[0033] As a preferred embodiment of this example, please refer to Figure 1 and Figure 2 As can be seen, the water tank 23 is also equipped with an overflow port 232, which is located above the water inlet 231. The overflow port 232 is used to connect the fourth water pipe 5, one end of which extends to the outside of the air conditioner outdoor unit 2.

[0034] Note that in this embodiment, for ease of installation, the outdoor unit 2 of the air conditioner is provided with an interface for connecting the first water pipe 24 and the third water pipe 4.

[0035] Then, in this embodiment, it can be seen that the indoor unit 1 of the air conditioner 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 water pipe 3 is connected to the drain outlet.

[0036] Working principle of the cooling system: When it is necessary to enhance the cooling effect of the condenser 21 in the outdoor unit 2 of the air conditioner, the third water pipe 4 is connected to the outdoor unit 2 of the air conditioner, and one end of the third water pipe 4 is connected to a tap. Tap water is continuously supplied to the water tank 23. The water pump 241 located in the water tank 23 draws water from the water tank 23 to the spray nozzle 22. The condensate in the water tank 1 is also continuously supplied to the spray nozzle 22. The spray nozzle 22 continuously sprays the condensate and tap water downwards, cooling the condenser 21 located directly below the spray nozzle 22. The water flowing down from the spray will fall into the water tank 23. Since it is necessary to keep the water temperature in the water tank 23 low, the water in the water tank 23 needs to be drained in time. When the water level in the water tank 23 reaches the height of the overflow port 232, the water is discharged through the overflow port 232 into the fourth water pipe 5, and continues to be discharged to the outside of the outdoor unit 2 of the air conditioner.

[0037] Next, please refer to Figure 1 As can be seen, the bottom of the water tank 23 is equipped 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.

[0038] In addition, in this embodiment, an automatic sewage pump 61 is provided on the extension path of the sewage pipe 6, and the automatic sewage pump 61 is installed inside the air conditioner outdoor unit 2.

[0039] Here, the automatic sewage pump 61 and sewage pipe 6 are installed to periodically drain the dirt remaining at the bottom of the water tank 23. 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.

[0040] Please see Figure 1 and Figure 2 In order to better see the water level in the water tank 23, a liquid level float ball 26 is installed in the water tank 23 in this embodiment.

[0041] More specifically, in order to more efficiently deliver the condensate in the indoor unit 1 of the air conditioner to the spray nozzle 22, in this embodiment, a booster pump 31 is provided on the extension path of the second water pipe 3.

[0042] 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 22.

[0043] Note that in this embodiment, the fan 25 needs to continuously blow air onto the condenser 21. After the fan 25 draws in outside air, it blows air onto the condenser 21 and the heat dissipation fins, causing the water that drips onto the condenser 21 to vaporize. When there is a lot of water dripping onto the condenser 21, the fan 25 can greatly improve the heat dissipation effect on the condenser 21, which is beneficial to saving energy.

[0044] The cooling system for an outdoor unit of an air conditioner according to this utility model is described above as a preferred embodiment of this utility model and is not intended to limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A 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, 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 fan and a condenser, characterized in that, The cooling system includes: A water spray nozzle is fixed inside the outdoor unit of the air conditioner, and the outlet end of the second water pipe is connected to the water spray nozzle; An upward-opening water tank is installed inside the outdoor unit of the air conditioner and is positioned directly below the water spray nozzle. The condenser is positioned between the water spray nozzle and the water tank, and the fan is used to continuously blow air onto 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 cooling system for an outdoor unit of an air conditioner according to claim 1, 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.

3. The cooling system for an outdoor unit of an air conditioner according to claim 2, characterized in that, The bottom of the water tank is provided with a drain outlet, which is used to connect to a drain pipe. Both the fourth water pipe and the drain pipe are connected to the main sewer pipe.

4. The cooling system for an outdoor unit of an air conditioner according to claim 3, characterized in that, An automatic sewage pump is installed along the extension path of the sewage pipe, and the automatic sewage pump is located inside the outdoor unit of the air conditioner.

5. A cooling system for an outdoor unit of an air conditioner according to any one of claims 1-4, characterized in that, The water tank is equipped with a level float.

6. The cooling system for an outdoor unit of an air conditioner according to claim 5, 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 water pipe is connected to the drain outlet.

7. A cooling system for an outdoor unit of an air conditioner according to claim 6, characterized in that, A booster pump is installed along the extension path of the second water pipe.