Air cooler

Abstract

The air cooler comprises a box body assembly, the box body assembly is provided with a first air duct and a second air duct, the first air duct is provided with a first air inlet and a first air outlet, and the second air duct is provided with a second air inlet and a second air outlet; the first heat exchange mechanism comprises at least three water curtain assemblies and a first air supply assembly, the first air supply assembly is arranged in the first air duct, the air inlet side of the first air supply assembly faces at least one water curtain assembly, and the air outlet side of the first air supply assembly faces the first air outlet; the second heat exchange mechanism comprises an evaporator and a second air supply assembly, the evaporator and the second air supply assembly are both arranged in the second air duct, the air inlet side of the second air supply assembly faces the second air inlet, the air outlet side of the second air supply assembly faces the second air outlet, and the evaporator is located between the second air supply assembly and the second air inlet. According to the technical scheme, the multi-cooling effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of air coolers, and in particular to an air cooler. Background Art

[0002] At present, air coolers are a mild cooling device, which mainly achieves air cooling by absorbing heat during the evaporation process of water. Traditional air coolers usually only use a single cooling method, such as only using wet curtain cooling or only using mechanical refrigeration. The adaptability of a single cooling method under different environmental conditions is poor, and the cooling effect is limited. The heat exchanger design of existing air coolers is relatively simple, and the contact area between air and cooling medium is limited, resulting in low heat exchange efficiency. Summary of the invention

[0003] The main purpose of the present invention is to provide an air cooler, and the technical solution of the present invention aims to improve the multiple cooling effects.

[0004] To achieve the above object, the present invention provides an air cooler, comprising:

[0005] The box assembly is provided with a first air duct and a second air duct, the first air duct and the second air duct are arranged adjacent to each other, the first air duct is formed with a first air inlet and a first air outlet, and the second air duct is formed with a second air inlet and a second air outlet;

[0006] A first heat exchange mechanism includes at least three water curtain assemblies and a first air supply assembly, wherein the first air supply assembly is arranged in the first air duct, an air inlet side of the first air supply assembly faces at least one of the water curtain assemblies, and an air outlet side of the first air supply assembly faces the first air outlet;

[0007] The first air supply component is used to drive external air to enter the first air duct from the first air inlet and pass through the at least three water curtain components before being delivered from the first air outlet;

[0008] The second heat exchange mechanism includes an evaporator and a second air supply component, wherein the evaporator and the second air supply component are both arranged in the second air duct, the air inlet side of the second air supply component faces the second air inlet, the air outlet side of the second air supply component faces the second air outlet, and the evaporator is located between the second air supply component and the second air inlet.

[0009] In one embodiment, the box assembly includes a partition plate and a box body, the partition plate is arranged in the box body, and the box body is divided into a first box body and a second box body by the partition plate. The first box body and the second box body are adjacently arranged along a first direction, the first box body is provided with the first air duct, and the second box body is provided with the second air duct.

[0010] In one embodiment, the first box body has a first side wall and a second side wall that are arranged opposite to each other, and a third side wall and a first top plate that are arranged between the first side wall and the second side wall, the third side wall is arranged opposite to the partition plate, the first side wall, the second side wall, the third side wall, the first top plate and the partition plate enclose the first air duct, the inner sides of the first side wall, the second side wall and the third side wall are respectively provided with the water curtain assembly, at least one of the first side wall, the second side wall and the third side wall is provided with the first air inlet, and the first top plate is provided with the first air outlet.

[0011] In one embodiment, the first air supply assembly includes a first volute and a centrifugal wind wheel rotatably disposed in the first volute, and the first volute is provided with air inlets on a side facing the first side wall and a side facing the second side wall, and the air outlet of the volute is connected to the first air outlet.

[0012] In one embodiment, the first heat exchange mechanism further includes a coil assembly, the air cooler further includes a water supply assembly and a water receiving pan, the water supply assembly is arranged in the second housing, the water receiving pan has a cooling groove extending from the first direction, the coil assembly is arranged in the cooling groove, the coil assembly is extended in the direction of the cooling groove, the evaporator is located above the water receiving pan, the water supply assembly is used to supply water to the at least three water curtain assemblies, the water supply assembly includes a water tank, a water adding valve and a partition plate, the partition plate is arranged in the water tank so that the water tank forms a first accommodating chamber and a second accommodating chamber, the water adding valve is arranged in the second accommodating chamber, the water inlet end of the water adding pump is connected to the water source, the water outlet end of the water adding pump is connected to the first accommodating chamber, the water inlet side of the water curtain assembly is connected to the first accommodating chamber so that the liquid in the first accommodating chamber is transported to the water curtain assembly, the cooling groove is connected to the second accommodating chamber so that the condensed water generated by the coil assembly flows back to the second accommodating chamber, and the second accommodating chamber is provided with a water outlet.

[0013] In one embodiment, the evaporator is disposed in the second air duct in a manner inclined toward the second air inlet.

[0014] In one embodiment, the second air supply assembly includes a second volute and a centrifugal wind wheel installed in the second volute, the second volute is arranged in the second air duct near the second air outlet, the second volute is located above the evaporator, the air inlet of the volute is arranged opposite to the rear end of the evaporator, the front end of the evaporator is arranged opposite to the second air inlet, and the air outlet of the volute is connected to the second air outlet.

[0015] In one embodiment, the second box body includes a fourth side wall and a fifth side wall that are relatively arranged, and a sixth side wall that is arranged between the fourth side wall and the fifth side wall, the sixth side wall is arranged opposite to the partition plate, the fourth side wall, the fifth side wall, the sixth side wall and the partition plate enclose the second air duct, the second air inlet and the second air outlet are provided on the sixth side wall, the second air outlet is located above the second air inlet, the upper end of the evaporator is close to or against the sixth side wall, and the lower end of the evaporator is close to or against the partition plate and is inclined.

[0016] In one embodiment, the water curtain assembly is provided at the sixth side wall, and the second air supply assembly is used to drive external air into the second air duct from the second air inlet and pass through the water curtain assembly to be delivered from the second air outlet.

[0017] In one embodiment, the air cooler also includes a compressor, which is arranged in the first box body, the coil assembly includes at least two coils, the cooling tank includes a first cooling tank and a second cooling tank arranged adjacent to the first cooling tank, the first cooling tank and the second cooling tank are both provided with the coil, the coil includes a tube body and a liquid inlet section and a liquid outlet section arranged at both ends of the tube body, the liquid inlet section is used to connect to the compressor, and the liquid outlet section is used to connect to the evaporator.

[0018] The technical solution of the present invention discloses a cold air machine, and the solution focuses on describing a design of a cold air machine, which integrates two different cooling mechanisms, namely, a wet curtain (or water curtain) cooling system and an evaporative cooling system. The solution discloses a box assembly as the basic framework of the entire cold air machine, which includes two independent air ducts, a first air duct and a second air duct. The two air ducts respectively undertake different cooling tasks. The first air duct is equipped with a first air inlet and a first air outlet for the wet curtain cooling system. The second air duct is provided with a second air inlet and a second air outlet, serving the mechanical refrigeration system. The first heat exchange mechanism uses the evaporative cooling principle of the water curtain to reduce the temperature of the air passing through the first air duct. The first heat exchange mechanism is mainly composed of a plurality of water curtain assemblies and an air supply assembly, which is installed in the first air duct. At least three water curtain assemblies reduce the temperature of the passing air by evaporation of water to achieve the effect of natural cooling. The first air supply mechanism is responsible for sucking in the outside air and passing it through the water curtain assembly, and finally discharging the cooled air. The second heat exchange mechanism adopts a traditional refrigerant circulation system to further reduce the temperature of the air passing through the second air duct. The second heat exchange mechanism consists of an evaporator and another air supply component, which is placed in the second air duct. The evaporator contains refrigerant, which absorbs heat through the evaporation process of the refrigerant to cool the air. The evaporator is a device that uses the phase change of the refrigerant (from liquid to gas) to absorb heat to achieve the purpose of cooling, and is a mechanical refrigeration method. The second air supply component is responsible for guiding the air through the evaporator and delivering the cooled air to the target area. The dual-duct design, the first duct and the second duct operate independently without interfering with each other, ensuring that each cooling method can achieve the best effect. Multi-stage cooling, in extremely high temperature environments, wet curtain cooling and mechanical refrigeration can be enabled at the same time to achieve double cooling and improve overall cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of an embodiment of a cooling air machine provided by the present invention;

[0021] Figure 2 A schematic structural diagram of another embodiment of the air cooler provided by the present invention;

[0022] Figure 3 A schematic diagram of the structural decomposition of an embodiment of an air cooler provided by the present invention;

[0023] Figure 4A schematic structural diagram of another embodiment of the air cooler provided by the present invention;

[0024] Figure 5 A schematic structural diagram of another embodiment of the air cooler provided by the present invention;

[0025] Figure 6 A partial structural schematic diagram of an embodiment of an air cooler provided by the present invention;

[0026] Figure 7 This is a schematic structural diagram of an embodiment of a water curtain assembly provided by the present invention.

[0027] Description of Figure Numbers:

[0028] 10. Box assembly; 11. First air inlet; 12. First air outlet; 13. Second air inlet; 14. Second air outlet; 15. Partition plate; 16. Box body; 17. First box; 171. First side wall; 172. Second side wall; 173. Third side wall; 174. First top plate; 18. Second box; 181. Fourth side wall; 182. Fifth side wall; 183. Sixth side wall; 20. First heat exchange mechanism; 21. Water curtain assembly; 211. Wet curtain; 212. Water curtain frame; 2121. Water inlet side; 2122. Water outlet side; 213. Frame body; 2131. Water storage tank; 2132. Diversion trough; 2133, drainage hole; 2134, first air guide; 2135, second air guide; 214, water inlet pipe; 215, clamping part; 216, guide part; 217, blocking part; 218, installation station; 22, first air supply assembly; 221, air inlet; 23, coil assembly; 30, second heat exchange mechanism; 31, evaporator; 32, second air supply assembly; 40, water supply assembly; 41, water tank; 411, first accommodating chamber; 412, second accommodating chamber; 42, water adding valve; 43, partition plate; 50, water receiving tray; 51, cooling trough; 511, first cooling trough; 512, second cooling trough; 60, compressor.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The invention provides a cooling fan.

[0034] Reference Figure 1 to Figure 7 In an embodiment of the present invention, a cooling fan includes:

[0035] The box assembly 10 is provided with a first air duct and a second air duct, wherein the first air duct and the second air duct are arranged adjacent to each other, the first air duct is formed with a first air inlet 11 and a first air outlet 12, and the second air duct is formed with a second air inlet 13 and a second air outlet 14;

[0036] The first heat exchange mechanism 20 includes at least three water curtain assemblies 21 and a first air supply assembly 22, wherein the first air supply assembly 22 is disposed in the first air duct, the air inlet side of the first air supply assembly 22 faces at least one of the water curtain assemblies 21, and the air outlet side of the first air supply assembly 22 faces the first air outlet 12;

[0037] The first air supply component 22 is used to drive external air from the first air inlet 11 into the first air duct and pass through the at least three water curtain components 21 before being delivered from the first air outlet 12;

[0038] The second heat exchange mechanism 30 includes an evaporator 31 and a second air supply component 32. The evaporator 31 and the second air supply component 32 are both arranged in the second air duct. The air inlet side of the second air supply component 32 faces the second air inlet 13, and the air outlet side of the second air supply component 32 faces the second air outlet 14. The evaporator 31 is located between the second air supply component 32 and the second air inlet 13.

[0039] The present invention application scheme describes a design of an air cooler, which integrates two different cooling mechanisms, namely a wet curtain (or water curtain) cooling system and an evaporative cooling system. The scheme discloses a box assembly 10 as the basic framework of the entire air cooler, which includes two independent air ducts, a first air duct and a second air duct. The two air ducts respectively undertake different cooling tasks. The first air duct is equipped with a first air inlet 11 and a first air outlet 12, which are used for the wet curtain cooling system. The second air duct is provided with a second air inlet 13 and a second air outlet 14, which serves the mechanical refrigeration system. The first heat exchange mechanism 20 uses the evaporative cooling principle of the water curtain to reduce the temperature of the air passing through the first air duct. The first heat exchange mechanism 20 is mainly composed of a plurality of water curtain assemblies 21 and an air supply structure 22, and is installed in the first air duct. At least three water curtain assemblies 21 reduce the temperature of the passing air by evaporating water to achieve the effect of natural cooling. The first air supply assembly 22, which can usually be one or more fans, is responsible for inhaling the outside air and passing it through the water curtain assembly, and finally discharging the cooled air. The second heat exchange mechanism 30 adopts a traditional refrigerant circulation system to further reduce the temperature of the air passing through the second air duct. The second heat exchange mechanism 30 is composed of an evaporator 31 and another air supply structure 32, and is placed in the second air duct. The evaporator 31 contains refrigerant inside, which absorbs heat through the evaporation process of the refrigerant, thereby cooling the air. The evaporator 31 is a device that uses the phase change of the refrigerant (from liquid to gas) to absorb heat to achieve the purpose of cooling, and belongs to a mechanical refrigeration method. The second air supply component 32 can also be a group of fans, which is responsible for guiding the air through the evaporator and delivering the cooled air to the target area. Specifically, in the first air duct (wet curtain cooling), the outside air is sucked into the first air duct through the first air inlet 11. The air flows through at least three water curtain components 21. During this process, the moisture on the surface of the water curtain evaporates, taking away the heat in the air, thereby reducing the air temperature. The cooled air is pushed by the first air supply component 22 and discharged through the first air outlet 12 to cool the environment. In the second air duct (mechanical refrigeration), another air enters the second air duct through the second air inlet 13. This air first passes through the evaporator 31, where the refrigerant evaporates and absorbs a large amount of heat, causing the air temperature to drop significantly. The air cooled by the evaporator is then pushed by the second air supply component 32 and finally discharged from the second air outlet 14, providing additional cooling effect for the environment. In practical applications, the cooling system of any air duct can be turned on separately, or both systems can be enabled at the same time according to the temperature and humidity conditions indoors and outdoors to achieve the best cooling effect. When the environment is relatively dry, wet curtain cooling of the first air duct is used first, because the evaporative cooling efficiency is the highest at this time; in the case of high humidity, it relies more on the mechanical refrigeration system of the second air duct. This design combines the advantages of both wet curtain cooling and mechanical refrigeration. In the dual-duct design, the first and second air ducts operate independently without interfering with each other, ensuring that each cooling method can achieve the best effect.Multi-stage cooling: In extremely high temperature environments, wet curtain cooling and mechanical refrigeration can be enabled at the same time to achieve dual cooling and improve overall cooling efficiency. By combining wet curtain cooling and mechanical refrigeration, the comfort level of indoor temperature and humidity can be maintained under different conditions. For example, in dry areas, wet curtain cooling can not only reduce the temperature, but also increase the indoor humidity and improve comfort; in humid areas, mechanical refrigeration can effectively dehumidify and avoid excessive humidity. By integrating these two technologies in the same device, the air cooler can automatically select the most appropriate cooling mode according to the actual use environment, or enable both at the same time to achieve the best cooling effect.

[0040] Reference Figure 1 to Figure 7 In the embodiment of the present invention, the box assembly 10 includes a partition plate 15 and a box body 16, the partition plate 15 is arranged in the box body 16, the box body 16 is divided into a first box body 17 and a second box body 18 by the partition plate 15, the first box body 15 and the second box body 16 are adjacently arranged along a first direction, the first box body 17 is provided with the first air duct, and the second box body 18 is provided with the second air duct.

[0041] The design of the air cooler is to set a partition plate 15 inside the box assembly 10 to separate the box body 16 into a first box 17 and a second box 18, each of which is provided with an independent air duct. Among them, the first box 17 contains a first air duct for the wet curtain cooling system. The second box 18 contains a second air duct for the mechanical refrigeration system. The box is divided into two independent air ducts by the partition plate 15 to ensure that the wet curtain cooling and the mechanical refrigeration system do not interfere with each other, and each operates independently to improve the cooling efficiency. Users can choose to use wet curtain cooling, mechanical refrigeration or both at the same time according to environmental conditions and needs to enhance the adaptability and flexibility of the equipment. The two cooling systems are integrated in one box, and the space is reasonably allocated by the partition plate 15, making the equipment more compact and saving installation space. The components in each box can be independently designed and maintained, which is convenient for production and maintenance. In a dry environment, wet curtain cooling is preferred to reduce energy consumption; in a high humidity environment, mechanical refrigeration is used to ensure the cooling effect. Through the intelligent control system, it can be enabled on demand and optimize energy utilization. Specifically, in the first air duct (wet curtain cooling), outside air enters the first box 17 through the first air inlet 11. The air flows through at least three water curtain assemblies 21, and the moisture on the surface of the water curtain evaporates, taking away the heat in the air and lowering the air temperature. The first air supply assembly 22 discharges the cooled air from the first air outlet 12 to cool the environment. In the second air duct (mechanical refrigeration), outside air enters the second box 18 through the second air inlet 13. The air passes through the evaporator 31, and the refrigerant evaporates in the evaporator, absorbing a large amount of heat, which significantly reduces the air temperature. The second air supply assembly 32 discharges the cooled air from the second air outlet 14 to provide additional cooling effect for the environment.

[0042] It can be understood that the water curtain assembly 21 includes a wet curtain 211 and a water curtain frame 212, the water curtain frame 212 is connected to the first box 17, the wet curtain 211 is connected to the water curtain frame 212, the water curtain frame 212 has a water inlet side 2121 and a water outlet side 2122, the water supply assembly 40 is used to supply water to the water inlet side 2121 of the water curtain frame 212, and the water outlet side 2122 of the water curtain frame 212 faces the wet curtain 211.

[0043] The water curtain frame 212 includes a frame body 213 and a water inlet pipe 214 disposed on the frame body. The water inlet pipe 214 is disposed on the water inlet side 2121 , and the water inlet pipe 214 is located in the middle of the frame body 213 .

[0044] The frame body 213 has a water storage tank 2131 and a guide groove 2132 connected to the water storage tank 2131, the guide groove 2132 is arranged in the water storage tank 2131, the water outlet end of the water inlet pipe 214 is connected to the middle part of the guide groove 2132, the frame body 213 has a drainage hole 2133, and the drainage hole 2133 is arranged on the water outlet side 2122. The water outlet end of the drainage hole 2133 faces the wet curtain 211, and the drainage hole 2133 is used to transport the water in the water storage tank 2131 to the wet curtain 211.

[0045] A clamping portion 215 is provided on one side of the frame body 213 away from the water outlet side 2122 , and the clamping portion 215 and the outer peripheral wall at the bottom of the frame body 213 are surrounded to form an installation station 218 for installing the wet curtain 211 .

[0046] The guide groove 2132 has a first guide portion 2134 and a second guide portion 2135 spaced apart along a first direction, and both the first guide portion 2134 and the second guide portion 2135 have an inclined surface inclined from a side close to the water inlet side 2121 toward the water outlet side 2122 .

[0047] The frame body 213 also includes a guide portion 216 arranged on both sides of the water inlet pipe 214, and a blocking portion 217 spaced apart relative to the water outlet end of the water inlet pipe 214. The guide portion 216 and the blocking portion 217 are both arranged in the guide groove 2132. The guide portion 216 is used to guide water to flow out from both sides of the guide groove 2132, and the blocking portion 217 is used to limit water from flowing out from both sides of the guide groove 2132.

[0048] Reference Figure 1 to Figure 7In the embodiment of the present invention, the first box body 17 has a first side wall 171 and a second side wall 172 that are arranged opposite to each other, and a third side wall 173 and a first top plate 174 that are arranged between the first side wall 171 and the second side wall 172, the third side wall 173 is arranged opposite to the partition plate 15, the first side wall 171, the second side wall 172, the third side wall 173, the first top plate 174 and the partition plate 15 enclose the first air duct, the inner sides of the first side wall 171, the second side wall 172 and the third side wall 173 are respectively provided with the water curtain assembly 21, at least one of the first side wall 171, the second side wall 172 and the third side wall 173 is provided with the first air inlet 11, and the first top plate 174 is provided with the first air outlet 12.

[0049] In the design of the air cooler, the specific structure of the first box body 17 is as follows: the first box body 17 is enclosed by the first side wall 171, the second side wall 172, the third side wall 173, the first top plate 174 and the partition plate 15. The first air duct is formed by the above five wall surfaces and is used for the wet curtain cooling system. The water curtain assembly 21 is respectively arranged on the inner side of the first side wall 171, the second side wall 172 and the third side wall 173. The first air inlet 11 is arranged on at least one of the first side wall 171, the second side wall 172 and the third side wall 173. The first air outlet 12 is arranged on the first top plate 174. The first air inlet 11 can be arranged on multiple side walls, which allows air to enter the first air duct from multiple directions, increases the air inlet area, increases the air circulation, and thus improves the cooling efficiency. The water curtain assembly 21 is arranged on the inner side of the first side wall 171, the second side wall 172 and the third side wall 173, forming a multi-faceted water curtain cooling path, increasing the area of ​​contact between the air and the water curtain, improving the evaporation efficiency of water, and thus improving the cooling effect. The multi-directional air inlet design increases the air inlet area, increases the air flow, and further improves the cooling efficiency. The multi-faceted water curtain and multi-directional air inlet design allow the air entering the first air duct to be evenly distributed in all directions, avoiding the problem of uneven local cooling. The first air outlet 12 is arranged on the first top plate 174, which is conducive to evenly delivering the cooled air into the room and improving the uniformity of the indoor temperature. Specifically, the outside air enters the first box 17 through the first air inlet 11. Since the first air inlet 11 can be arranged on at least one of the first side wall 171, the second side wall 172 and the third side wall 173, air can enter the first air duct from multiple directions. The air entering the first air duct flows through the water curtain assembly 21 on the inner side of the first side wall 171, the second side wall 172 and the third side wall 173. The water on the surface of the water curtain evaporates, taking away the heat in the air and reducing the air temperature. The first air supply assembly 22 (usually a fan) discharges the cooled air from the first air outlet 12 (set on the first top plate 174) to cool the environment.

[0050] Reference Figure 1 to Figure 7 In an embodiment of the present invention, the air supply structure 22 includes a first volute and a centrifugal wind wheel rotatably disposed in the first volute, and the first volute is provided with an air inlet 221 on the side facing the first side wall 171 and the side facing the second side wall 172, and the air outlet of the volute is connected to the first air outlet 12.

[0051] Air inlets 221 are provided on both sides of the first volute, which can simultaneously introduce air from the first side wall 171 and the second side wall 172, thereby increasing the air inlet area, improving the air flow rate, and thus improving the cooling efficiency. The multi-directional air inlet design allows the air entering the first volute to be evenly distributed in all directions, thus avoiding the problem of uneven local cooling. The design of the centrifugal wind wheel can inhale air from the radial direction and then discharge it in the tangential direction, thus forming a strong airflow, thereby increasing the air delivery distance and speed. The volute structure can effectively collect and guide air, reduce airflow loss, increase wind pressure and air volume, ensure that air smoothly enters from the air inlet 221, and is discharged from the air outlet after being accelerated by the centrifugal wind wheel. The combined design of the centrifugal wind wheel and the volute can generate a strong airflow, ensuring that the cooled air can be quickly and evenly delivered to the room, thereby improving the cooling effect. The volute structure can reduce the turbulence of the airflow, reduce noise, and improve the stability of air supply. The combined design of the volute and the centrifugal wind wheel makes the structure of the first air supply assembly 22 compact, saves space, and is easy to install and maintain. The air supply structure 22 can be independently designed and installed, which is convenient for production and maintenance. Specifically, the outside air enters the first box body 17 through the first air inlet 11. The air flows through the water curtain assembly 21 inside the first side wall 171, the second side wall 172 and the third side wall 173, and the moisture on the surface of the water curtain evaporates, taking away the heat in the air and reducing the air temperature. The cooled air enters the first volute through the air inlet 221 on both sides of the first volute. The design of the air inlet 221 allows air to enter the first volute from multiple directions, increasing the air inlet area and improving the air circulation. The centrifugal impeller rotates under the drive of the motor, sucking in the air entering the first volute from the radial direction and then discharging it in the tangential direction to form a strong airflow. The volute structure effectively collects and guides the air, reduces airflow loss, and increases wind pressure and air volume. The cooled air is discharged from the air outlet of the first volute and sent into the room through the first air outlet 12 to cool the environment.

[0052] Reference Figure 1 to Figure 7In the embodiment of the present invention, the first heat exchange mechanism 20 further includes a coil assembly 23, the air cooler further includes a water supply assembly 40 and a water receiving pan 50, the water supply assembly 40 is arranged in the second box body 21, the water receiving pan 50 has a cooling groove 51 extending from the first direction, the coil assembly 23 is arranged in the cooling groove 51, the coil assembly 23 is extended in the direction of the cooling groove 51, the evaporator 31 is located above the water receiving pan 50, the water supply assembly 40 is used to supply water to the at least three water curtain assemblies 21, the water supply assembly 40 includes a water tank 41, a water adding valve 42 and a partition plate 43, the partition plate 43 is arranged at The water tank 41 is formed with a first accommodating chamber 411 and a second accommodating chamber 412, the water adding valve 42 is arranged in the second accommodating chamber 412, the water inlet end of the water adding pump 42 is connected to the water source, the water outlet end of the water adding pump 42 is connected to the first accommodating chamber 411, the water inlet side of the water curtain assembly 21 is connected to the first accommodating chamber 411, so that the liquid in the first accommodating chamber 411 is transported to the water curtain assembly 21, the cooling groove 51 is connected to the second accommodating chamber 412, so that the condensed water generated by the coil assembly 23 flows back to the second accommodating chamber 412, and the second accommodating chamber 412 is provided with a water outlet.

[0053] Multi-stage cooling is achieved by combining the water curtain assembly 21 and the coil assembly 23. The water curtain assembly 21 lowers the air temperature by evaporation of water, and the coil assembly 23 further cools the air by circulating condensed water, thereby improving the overall cooling efficiency. The condensed water generated by the coil assembly 23 flows back to the second accommodating chamber 412, and can be used again for water supply to the water curtain assembly 21, thereby reducing the waste of water resources. The water tank 41 is divided into a first accommodating chamber 411 and a second accommodating chamber 412. The first accommodating chamber 411 is used to store water for supplying water to the water curtain assembly 21, and the second accommodating chamber 412 is used to store condensed water. This design ensures the separation of water supply and condensed water, thereby avoiding water pollution. Water from an external water source is transported to the first accommodating chamber 411 through the water adding valve 42, thereby ensuring continuous water supply to the water curtain assembly 21, and the water flows into the second accommodating chamber 412 through the partition plate 43. The water in the first accommodating chamber 411 is transported to the water inlet side of the water curtain assembly 21 through a pipeline, and the water curtain assembly 21 sprays water mist to cool the air by evaporation. The coil assembly 23 will produce condensed water during the cooling process. The condensed water flows into the cooling groove 51 of the water receiving tray 50. The cooling groove 51 is connected to the second accommodating chamber 412, and the condensed water flows back into the second accommodating chamber 412. The condensed water flows back to the second accommodating chamber 412 through the cooling groove 51 and can be discharged regularly through the water outlet to ensure the smooth flow of the waterway and the stable operation of the system. The water outlet can discharge excess condensed water in time to prevent excessive water accumulation from overflowing or affecting the normal operation of the equipment. Condensed water can be discharged regularly through the water outlet to keep the water tank clean, prevent the accumulation of bacteria and dirt, and extend the service life of the equipment.

[0054] It is understandable that the outer surface of the water pump 42 is provided with a first scale line and a second scale line at intervals, the first scale line is used to indicate the lowest level of the liquid in the first accommodating chamber 411, and the second scale line is used to indicate the highest level of the liquid in the second accommodating chamber 412.

[0055] The water adding pump 42 includes a water pump body and a liquid level sensor, wherein the liquid level sensor is used to sense the water level of the second containing chamber 412; the liquid level sensor and the water pump body are both electrically connected to a control device, and the control device receives communication data from the liquid level sensor and regulates the opening and closing of the water pump body to replenish water for the first water tank; when the water level of the second containing chamber 412 is lower than the detection position of the liquid level sensor, the water pump body replenishes water for the first containing chamber 411.

[0056] It is understood that the water tray 50 can be a flat plate water tray, a rectangular or oblong plate with a flat bottom, usually made of corrosion-resistant metal (such as stainless steel) or plastic, with high edges around to prevent condensed water from overflowing; it can also be an inclined water tray, a rectangular or oblong plate with a bottom at a certain inclination angle, usually made of corrosion-resistant metal (such as stainless steel) or plastic. There are high edges around to prevent condensed water from overflowing, and a drain port is set at the lowest point to ensure smooth discharge of condensed water; it can also be a segmented water tray, a water tray composed of multiple segments, each of which can be designed independently. It is usually made of corrosion-resistant metal (such as stainless steel) or plastic. Each segment has high edges around to prevent condensed water from overflowing, and a drain port is set at the lowest point of each segment to ensure smooth discharge of condensed water; it can also be a trough water tray, a long strip of trough-like structure, usually set along the length direction of the device. It is usually made of corrosion-resistant metal (such as stainless steel) or plastic. There are high edges on both sides to prevent condensed water from overflowing, and a drain port is set at the lowest point of the trough to ensure smooth discharge of condensed water.

[0057] Reference Figure 1 to Figure 7 In the embodiment of the present invention, the evaporator 31 is arranged in the second air duct in a manner inclined toward the second air inlet 13 .

[0058] The inclined setting of the evaporator 31 can reduce the resistance when air passes through, making it easier for air to pass through the evaporator and improving the air circulation efficiency. The inclined setting of the evaporator can increase the contact area between the air and the surface of the evaporator, improve the heat exchange efficiency, and thus improve the cooling effect. The inclined setting of the evaporator can better guide the air flow, so that the air is more evenly distributed when passing through the evaporator, avoiding the problem of uneven local cooling. The inclined setting can reduce turbulence when air passes through, reduce noise, and improve the smoothness of air supply. The inclined setting of the evaporator helps the condensed water to flow smoothly along the surface of the evaporator to the water receiving tray 50, reduce the accumulation of condensed water on the surface of the evaporator, prevent dripping, and keep the equipment clean and hygienic. The inclined setting can reduce the accumulation of condensed water on the surface of the evaporator, prevent the condensed water from clogging the evaporator and affecting the normal operation of the system. Reducing the accumulation of condensed water can prevent corrosion and rust, and extend the service life of the evaporator.

[0059] Reference Figure 1 to Figure 7 In the embodiment of the present invention, the second air supply component 32 includes a second volute and a centrifugal wind wheel installed in the second volute, the second volute is arranged in the second air duct near the second air outlet 14, the second volute is located above the evaporator 31, the air inlet of the volute is arranged opposite to the rear end of the evaporator 31, the front end of the evaporator 31 is arranged opposite to the second air inlet 13, and the air outlet of the volute is connected to the second air outlet 14.

[0060] The air inlet of the second volute is arranged opposite to the rear end of the evaporator 31, which can reduce the resistance of air passing through, make it easier for air to pass through the evaporator, and improve the air circulation efficiency. This design can increase the contact area between the air and the surface of the evaporator, improve the heat exchange efficiency, and thus improve the cooling effect. The position design of the second volute can better guide the air flow, so that the air is more evenly distributed after passing through the evaporator, avoiding the problem of uneven local cooling. The second volute can reduce the turbulence when the air passes through, reduce noise, and improve the stability of air supply. The design of the centrifugal wind wheel can inhale air from the radial direction and then discharge it in the tangential direction to form a strong airflow, ensuring that the cooled air can be quickly and evenly delivered to the room, improving the cooling effect. The second volute is located above the evaporator 31, which helps the condensed water to flow smoothly along the surface of the evaporator to the water receiving tray 50, reduce the accumulation of condensed water on the surface of the evaporator, prevent dripping, and keep the equipment clean and hygienic. Reducing the accumulation of condensed water can prevent the condensed water from clogging the evaporator and affecting the normal operation of the system. Reducing the accumulation of condensed water can prevent corrosion and rust, and extend the service life of the evaporator and the air supply structure. Specifically, outside air enters the second housing 18 through the second air inlet 13. The air passes through the tilted evaporator 31, and the refrigerant evaporates in the evaporator, absorbing a large amount of heat, causing the air temperature to drop significantly. The cooled air enters the second volute through the air inlet of the second volute. The centrifugal impeller rotates under the drive of the motor, sucking the air entering the second volute from the radial direction and then discharging it in the tangential direction, forming a strong airflow. The air outlet of the second volute is connected to the second air outlet 14, and the cooled air is discharged from the second air outlet 14, providing an additional cooling effect for the environment.

[0061] Reference Figure 1 to Figure 7 In the embodiment of the present invention, the second box body 18 includes a fourth side wall 181 and a fifth side wall 182 which are relatively arranged, and a sixth side wall 183 arranged between the fourth side wall 181 and the fifth side wall 182, the sixth side wall 183 is arranged opposite to the partition plate 15, the fourth side wall 181, the fifth side wall 182, the sixth side wall 183 and the partition plate 15 enclose the second air duct, the sixth side wall 183 is provided with the second air inlet 13 and the second air outlet 14, the second air outlet 14 is located above the second air inlet 13, the upper end of the evaporator 31 is close to or against the sixth side wall 183, and the lower end of the evaporator 31 is close to or against the direction of the partition plate 15 and is inclined.

[0062] The tilted setting of the evaporator 31 can reduce the resistance of air passing through, making it easier for air to pass through the evaporator and improving the air circulation efficiency. The second air inlet 13 and the second air outlet 14 are respectively arranged at different positions of the sixth side wall 183, with the air inlet at the bottom and the air outlet at the top. This design can form a natural air flow path and reduce the resistance of air flow. The tilted evaporator can better guide the air flow, so that the air is more evenly distributed when passing through the evaporator, avoiding the problem of uneven local cooling. By tilting the evaporator 31 of the second box body 18 and setting the second air inlet 13 and the second air outlet 14 at different positions of the sixth side wall 183, this air cooler not only improves the air circulation efficiency and cooling effect, but also optimizes the air flow path, improves the condensate discharge efficiency, and enhances the reliability of the system and the user experience.

[0063] Reference Figure 1 to Figure 7 In the embodiment of the present invention, the water curtain assembly 21 is provided at the sixth side wall 183 , and the second air supply assembly 32 is used to drive the outside air into the second air duct from the second air inlet 13 and pass through the water curtain assembly 21 and then be delivered from the second air outlet 14 .

[0064] In the design of the air cooler, a water curtain assembly 21 is provided at the sixth side wall 183, and the second air supply assembly 32 is used to drive the outside air into the second air duct from the second air inlet 13, and then pass through the water curtain assembly 21 and be sent out from the second air outlet 14. The sixth side wall 183 is provided with a second air inlet 13 and a second air outlet 14, and the second air outlet 14 is located above the second air inlet 13. The water curtain assembly 21 is provided at the sixth side wall 183. The evaporator 31 is tiltedly arranged in the second air duct, with the upper end close to or against the sixth side wall 183, and the lower end close to or against the partition plate 15. The second air supply assembly 32 includes a second volute and a centrifugal wind wheel installed in the second volute, the second volute is located above the evaporator 31, the air inlet of the volute is arranged opposite to the rear end of the evaporator 31, and the air outlet of the volute is connected to the second air outlet 14. The water curtain assembly 21 and the evaporator 31 are simultaneously arranged in the second air duct, so as to realize multi-stage cooling. The air is first cooled by the water curtain assembly 21, and then cooled by the evaporator 31, which improves the overall cooling effect. The combined design of the water curtain assembly 21 and the evaporator 31 increases the contact area between the air and the cooling medium, and improves the heat exchange efficiency.

[0065] Reference Figure 1 to Figure 7In an embodiment of the present invention, the air cooler also includes a compressor 60, which is arranged in the first box body 17. The coil assembly 23 includes at least two coils. The cooling groove 51 includes a first cooling groove 511 and a second cooling groove 512 arranged adjacent to the first cooling groove 511. The first cooling groove 511 and the second cooling groove 512 are both provided with the coil. The coil includes a tube body and a liquid inlet section and a liquid outlet section arranged at both ends of the tube body. The liquid inlet section is used to connect to the compressor 60, and the liquid outlet section is used to connect to the evaporator 31.

[0066] The compressor 60 compresses the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas. The high-temperature and high-pressure refrigerant gas enters the coil through the liquid inlet section, and the coil is cooled by cold water in the cooling tank 51, and the refrigerant gas gradually condenses into liquid. The condensed refrigerant liquid enters the evaporator 31 through the liquid outlet section, evaporates in the evaporator 31, absorbs heat in the air, and reduces the air temperature. The evaporated refrigerant gas returns to the compressor 60 again to complete a refrigeration cycle. Specifically, the outside air enters the second box 18 through the second air inlet 13. The air first passes through the water curtain assembly 21 at the sixth side wall 183, and the water on the surface of the water curtain evaporates, taking away the heat in the air, and performing preliminary cooling. The air after preliminary cooling continues to pass through the inclined evaporator 31, and the refrigerant evaporates in the evaporator, absorbing a large amount of heat, and further reducing the air temperature. Among them, the coil in the cooling tank 51 can effectively cool the condensed water, so that it flows more smoothly to the water receiving tray 50, reduce the accumulation of condensed water on the surface of the evaporator, prevent dripping, and keep the equipment clean and hygienic. The coil in the cooling tank 51 can reduce the accumulation of condensed water on the surface of the evaporator, prevent the condensed water from clogging the evaporator and affecting the normal operation of the system. The combined design of the compressor 60 and the coil can reduce the turbulence when the air passes through, reduce noise, improve the smoothness of air supply, and enhance the user experience. The coil in the cooling tank 51 helps the condensed water to be discharged smoothly, reduces dripping, keeps the equipment clean and sanitary, and improves the indoor air quality.

[0067] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cooling fan, characterized in that: include: The box assembly is provided with a first air duct and a second air duct, the first air duct and the second air duct are arranged adjacent to each other, the first air duct is formed with a first air inlet and a first air outlet, and the second air duct is formed with a second air inlet and a second air outlet; A first heat exchange mechanism includes at least three water curtain assemblies and a first air supply assembly, wherein the first air supply assembly is arranged in the first air duct, an air inlet side of the first air supply assembly faces at least one of the water curtain assemblies, and an air outlet side of the first air supply assembly faces the first air outlet; The first air supply component is used to drive external air to enter the first air duct from the first air inlet and pass through the at least three water curtain components before being delivered from the first air outlet; The second heat exchange mechanism includes an evaporator and a second air supply component, wherein the evaporator and the second air supply component are both arranged in the second air duct, the air inlet side of the second air supply component faces the second air inlet, the air outlet side of the second air supply component faces the second air outlet, and the evaporator is located between the second air supply component and the second air inlet.

2. The air cooler according to claim 1, characterized in that: The box assembly includes a partition plate and a box body, the partition plate is arranged in the box body, and the box body is divided into a first box and a second box by the partition plate. The first box and the second box are adjacently arranged along a first direction, the first box is provided with the first air duct, and the second box is provided with the second air duct.

3. The air cooler according to claim 2, characterized in that: The first box body has a first side wall and a second side wall that are arranged opposite to each other, and a third side wall and a first top plate that are arranged between the first side wall and the second side wall, the third side wall is arranged opposite to the partition plate, the first side wall, the second side wall, the third side wall, the first top plate and the partition plate enclose the first air duct, the inner sides of the first side wall, the second side wall and the third side wall are respectively provided with the water curtain assembly, at least one of the first side wall, the second side wall and the third side wall is provided with the first air inlet, and the first top plate is provided with the first air outlet.

4. The air cooler according to claim 3, characterized in that: The air supply structure includes a first volute and a centrifugal wind wheel rotatably arranged in the first volute. The first volute is provided with air inlets on a side facing the first side wall and a side facing the second side wall. The air outlet of the volute is connected to the first air outlet.

5. The air cooler according to claim 4, characterized in that: The first heat exchange mechanism also includes a coil assembly, and the air cooler also includes a water supply assembly and a water receiving pan. The water supply assembly is arranged in the second box body, and the water receiving pan has a cooling groove extending from the first direction. The coil assembly is arranged in the cooling groove, and the coil assembly is extended in the direction of the cooling groove. The evaporator is located above the water receiving pan. The water supply assembly is used to supply water to the at least three water curtain assemblies. The water supply assembly includes a water tank, a water adding valve and a partition plate. The partition plate is arranged in the water tank so that the water tank forms a first accommodating chamber and a second accommodating chamber. The water adding valve is arranged in the second accommodating chamber. The water inlet end of the water adding pump is connected to the water source, and the water outlet end of the water adding pump is connected to the first accommodating chamber. The water inlet side of the water curtain assembly is connected to the first accommodating chamber so that the liquid in the first accommodating chamber is transported to the water curtain assembly. The cooling groove is connected to the second accommodating chamber so that the condensed water generated by the coil assembly flows back to the second accommodating chamber. The second accommodating chamber is provided with a water outlet.

6. The air cooler according to claim 5, characterized in that: The evaporator is arranged in the second air duct in a manner inclined toward the second air inlet.

7. The air cooler according to claim 6, characterized in that: The second air supply assembly includes a second volute and a centrifugal wind wheel installed in the second volute. The second volute is arranged in the second air duct near the second air outlet. The second volute is located above the evaporator. The air inlet of the volute is arranged opposite to the rear end of the evaporator, the front end of the evaporator is arranged opposite to the second air inlet, and the air outlet of the volute is connected to the second air outlet.

8. The air cooler according to claim 6, characterized in that: The second box body includes a fourth side wall and a fifth side wall that are relatively arranged, and a sixth side wall that is arranged between the fourth side wall and the fifth side wall, the sixth side wall is arranged opposite to the partition plate, the fourth side wall, the fifth side wall, the sixth side wall and the partition plate enclose the second air duct, the second air inlet and the second air outlet are provided on the sixth side wall, the second air outlet is located above the second air inlet, the upper end of the evaporator is close to or against the sixth side wall, and the lower end of the evaporator is close to or against the direction of the partition plate and is inclined.

9. The air cooler according to claim 6, characterized in that: The water curtain assembly is provided at the sixth side wall, and the second air supply assembly is used to drive external air to enter the second air duct from the second air inlet and pass through the water curtain assembly before being delivered from the second air outlet.

10. The air cooler according to claim 6, characterized in that: The air cooler also includes a compressor, which is arranged in the first box body. The coil assembly includes at least two coils. The cooling groove includes a first cooling groove and a second cooling groove arranged adjacent to the first cooling groove. The first cooling groove and the second cooling groove are both provided with the coil. The coil includes a tube body and a liquid inlet section and a liquid outlet section arranged at both ends of the tube body. The liquid inlet section is used to connect to the compressor, and the liquid outlet section is used to connect to the evaporator.

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