Air cooling device

Abstract

The utility model discloses an air cooling device which comprises a box body provided with an air inlet cavity and an air exhaust cavity, one side of the air inlet cavity is open, the top of the box body is provided with an exhaust port, and the bottom of the box body is provided with an air inlet and an air exhaust port; the fan is arranged in the air exhaust cavity; the filter assembly comprises a filter cartridge which passes through the top end, and the bottom end of the inner cavity is communicated with the air inlet; the rotating assembly drives the filter cartridge to rotate; the cleaning assembly comprises a cleaning pump and nozzles, the nozzles are distributed in the filter cartridge in the vertical direction, nozzles are adjacent to the inner wall of the filter cartridge, and the cleaning pump is communicated with the nozzles. According to the air cooling device, the cleaning liquid is regularly pumped through the cleaning pump and conveyed to the spray head, so that the spray head cleans the inner side of the filter cartridge, the filter cartridge is driven to rotate in cooperation with the rotating assembly, the cleaning range is expanded, the filter cartridge does not need to be disassembled and reinstalled, and the fan can continuously operate to filter air through the filter cartridge; and clean cold air is continuously conveyed to the heat exchange device from the air inlet.

Description

Technical Field

[0001] The utility model relates to the technical field of air cooling, in particular to an air cooling device. Background Art

[0002] The air-cooled box adopts air cooling technology, absorbing external air into the heat exchange device and then discharging it. The air exchanges heat with the high-temperature fluid in the heat exchange device to achieve the cooling effect. Due to its efficient and uniform cooling performance, it is widely used in various fields of modern industry, providing convenience and protection for industrial production.

[0003] Before the air-cooling device introduces external air into the heat exchange device, it needs to filter out particulate impurities in the air through a filter to ensure that clean air is input into the heat exchange device. However, after long-term use, the filter is prone to clogging, resulting in a decrease in ventilation volume. The filter needs to be removed for cleaning and then reinstalled, which is troublesome to operate. During the cleaning process, the air-cooling device needs to be shut down and cannot continuously supply clean cold air to the heat exchange device. In addition, for the air-cooling device installed on the top of the heat exchange device, it is difficult to remove and clean the filter because it is located at a high place.

[0004] Therefore, it is necessary to improve the air cooling device in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art and provide an air cooling device that is easy to clean and can continuously provide clean cold air to a heat exchange device.

[0006] In order to achieve the above technical effects, the technical solution of the utility model is: an air cooling device, comprising:

[0007] A box body, the box body having a horizontally distributed air inlet cavity and an air extraction cavity, one side of the air inlet cavity is open, the top of the box body is provided with an exhaust port connected to the air extraction cavity, and the bottom of the box body is provided with an air inlet and an air extraction port connected to the air extraction cavity, the air inlet and the air extraction port are respectively used to communicate with the refrigerant inlet and the refrigerant outlet of the heat exchange device;

[0008] a fan, the fan being arranged in the air extraction cavity;

[0009] A filter assembly, the filter assembly comprising a filter cartridge axially vertical and rotatable about an axis within the air inlet cavity, the top end of the filter cartridge being sealed, and the bottom end of the inner cavity being in communication with the air inlet;

[0010] A rotating assembly, wherein the rotating assembly drives the filter cartridge to rotate around its own axis;

[0011] A cleaning component includes a cleaning pump and a nozzle. The nozzle is distributed in the filter cartridge along the vertical direction and the nozzle is adjacent to the inner wall of the filter cartridge. The input end of the cleaning pump is used to connect to the cleaning liquid source, and the output end is connected to the nozzle.

[0012] Preferably, in order to avoid pollution to the surrounding environment after the cleaning liquid is sprayed out, the nozzle is arranged with its back facing the open side of the air inlet cavity, the circumferential outer edge of the filter cylinder is sealed with the side wall of the air inlet cavity, and the box body is also provided with a drain port connected to the air inlet cavity.

[0013] Preferably, in order to prevent the cleaning liquid from flowing into the heat exchange device, the cleaning component also includes a sealing groove extending in the vertical direction and facing away from the open side of the air inlet cavity, the two ends of the sealing groove are closed, the nozzle is arranged in the sealing groove, and the side wall of the sealing groove is sealedly connected to the circumferential inner wall of the filter cartridge at one end away from the bottom of the sealing groove.

[0014] Preferably, in order to ensure the sealed connection between the sealing groove and the filter cartridge, a sponge strip is provided between the two side walls of the sealing groove and the axial inner wall of the filter cartridge. The sponge strip extends along the length direction of the sealing groove, and the two ends of the sponge strip are flush with the two ends of the sealing groove.

[0015] Preferably, in order to ensure the sealing of the bottom of the filter cartridge, the filter assembly also includes a bottom ring coaxially fixed to the bottom end of the filter cartridge, and a sealing ring is provided on the box body, and the sealing ring is sealed to the bottom surface and circumferential outer edge of the bottom ring.

[0016] Preferably, in order to facilitate the discharge of the cleaning liquid at the bottom inner side of the filter cartridge to the outside, the bottom ring is provided with drainage holes, and the drainage holes are distributed at intervals along the circumference of the bottom ring. The sealing ring is provided with a liquid outlet hole connected to the air inlet cavity, and the movable path of the drainage hole includes a connecting station, and the drainage hole of the connecting station is combined with the liquid outlet hole to form a channel, and the two ends of the channel are respectively connected to the bottom of the air inlet cavity and the bottom of the inner cavity of the filter cartridge.

[0017] Preferably, in order to facilitate the delivery of the cleaning liquid to the nozzle, a cover is connected to the top of the filter cartridge, and the cleaning assembly includes an infusion tube that is coaxial with the filter cartridge and seals through the cover, and the output end of the cleaning liquid is connected to the nozzle through the infusion tube.

[0018] Preferably, in order to realize the rotation of the filter cartridge around its own axis, the rotating assembly includes a rotating motor, the output end of the rotating motor is connected to a driving wheel coaxially, the driving wheel is connected to a driven wheel through a synchronous belt drive, the driven wheel is fixedly connected to the filter cartridge coaxially, and the infusion tube passes through the driven wheel.

[0019] Preferably, in order to protect the driving wheel, the driven wheel and the synchronous belt, the rotating assembly further includes a protective shell, and the driving wheel, the driven wheel and the synchronous belt are all arranged in the protective shell.

[0020] Preferably, in order to ensure the ventilation volume, two air inlet cavities are provided and the open sides are arranged back to back, and the air exhaust cavity is provided between the two air inlet cavities.

[0021] To sum up, compared with the existing technology, the air cooling device of the utility model uses a cleaning pump to regularly draw cleaning liquid and transport it to the nozzle, so that the nozzle can clean the inside of the filter cartridge, and cooperates with the rotating component to drive the filter cartridge to rotate, thereby expanding the cleaning range. There is no need to remove and reinstall the filter cartridge. The fan can operate continuously to filter the air through the filter cartridge and continuously transport clean cold air from the air inlet to the heat exchange device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0024] Figure 3 yes Figure 1 Schematic diagram of part of the structure;

[0025] Figure 4 yes Figure 3 Schematic diagram of the cross-section structure;

[0026] Figure 5 yes Figure 4 A magnified view of part A;

[0027] Figure 6 yes Figure 3 Explosion diagram of

[0028] Figure 7 This is a schematic diagram of the connection structure between the filter component and the cleaning component of the utility model;

[0029] Figure 8 yes Figure 7 Explosion diagram of

[0030] Figure 9 yes Figure 7 Explosion diagram from another perspective;

[0031] In the figure: 1. Box body; 11. Bottom plate; 111. Air inlet; 112. Air exhaust port; 113. Filter; 12. Top plate; 121. Exhaust port; 13. Partition plate; 131. Drain port; 132. Sealing strip; 14. Connecting plate; 15. Dust cover; 16. Pillar; 2. Fan; 3. Filter assembly; 31. Filter cartridge; 32. Bottom ring; 321. Drain hole; 33. Sealing ring; 331. Liquid outlet hole; 34. Cover; 4. Rotating assembly; 41. Rotating motor; 42. Driving wheel; 43. Synchronous belt; 44. Driven wheel; 45. Protective shell; 46. Bearing; 5. Cleaning assembly; 51. Cleaning pump; 52. Nozzle; 53. Sealing groove; 54. Sponge strip; 55. Infusion tube; 56. Extension tube; 57. Cleaning cover. DETAILED DESCRIPTION

[0032] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0033] like Figures 1-9 As shown, the air cooling device of the utility model includes:

[0034] The box body 1 has a horizontally distributed air inlet cavity and an air extraction cavity. One side of the air inlet cavity is open. The top of the box body 1 is provided with an exhaust port 121 communicating with the air extraction cavity. The bottom of the box body 1 is provided with an air inlet 111 and an air extraction port 112 communicating with the air extraction cavity. The air inlet 111 and the air extraction port 112 are respectively used to communicate with the refrigerant inlet and the refrigerant outlet of the heat exchange device;

[0035] Fan 2, fan 2 is arranged in the air extraction chamber;

[0036] The filter assembly 3 includes a filter cartridge 31 that is axially vertical and rotates around the axis in the air inlet cavity. The top end of the filter cartridge 31 is sealed, and the bottom end of the inner cavity is connected to the air inlet 111.

[0037] The rotating assembly 4 drives the filter cartridge 31 to rotate around its own axis;

[0038] The cleaning component 5 includes a cleaning pump 51 and a nozzle 52. The nozzle 52 is distributed in the filter cartridge 31 along the vertical direction and the nozzle is adjacent to the inner wall of the filter cartridge 31. The input end of the cleaning pump 51 is used to connect to the cleaning liquid source, and the output end is connected to the nozzle 52.

[0039] The air cooling device is usually installed on the top of the heat exchange device, and the air inlet 111 and the air exhaust port 112 at the bottom of the box body 1 are respectively connected to the refrigerant inlet and the refrigerant outlet of the heat exchange device; the heat exchange device and the air cooling device operate at the same time. When in use, the fan 2 is started to transport the air in the exhaust chamber to the outside. At the same time, the external cold air is filtered through the filter cartridge 31 to form clean cold air, which is discharged from the air inlet 111. The clean cold air enters the heat exchange device as a refrigerant, absorbs the heat of the fluid, and the temperature rises. Then, it enters the exhaust chamber from the air exhaust port 112 and is discharged through the exhaust port 121. In this way, the heat of the fluid in the heat exchange device is absorbed by the continuous flow of air to achieve cooling.

[0040] Before the external cold air enters the air intake chamber, it first contacts the filter cartridge 31. The filter cartridge 31 is a cylinder. The filter cartridge 31 filters out particulate impurities in the air. After long-term use, particulate impurities accumulate on the filter cartridge 31, affecting the ventilation volume. At this time, the cleaning pump 51 in the cleaning component 5 is started to extract cleaning liquid (usually water) and transport it to the nozzle 52 inside the filter cartridge 31. The nozzle of the nozzle 52 is directed towards and close to the inner wall of the filter cartridge 31, so that the nozzle 52 sprays the cleaning liquid towards the inner wall of the filter cartridge 31. At the same time, the rotating component 4 is started, driving the filter cartridge 31 to rotate around its own axis. Since the nozzles 52 are distributed in the vertical direction, the rotating component 4 and the cleaning component 5 cooperate with each other to achieve comprehensive cleaning of the filter cartridge 31, thereby ensuring the cleaning effect without removing the filter cartridge 31, and thus ensuring the ventilation volume, so that the air cooling device can continuously transport clean cold air to the heat exchange device as a refrigerant to absorb heat and cool the fluid.

[0041] The box body 1 includes a bottom plate 11 and a top plate 12 arranged directly above the bottom plate 11. The bottom plate 11 and the top plate 12 are both arranged horizontally and are both waist-shaped. There are two air inlets 111, which are adjacent to the two ends of the bottom plate 11. The air extraction port 112 is arranged between the two air inlets 111. The exhaust port 121 is arranged on the top plate 12 and is located directly above the air extraction port 112. The bottom plate 11 and the top plate 12 are fixedly connected by two partition plates 13 and two connecting plates 14. The partition plates 13 and the connecting plates 14 are both arranged vertically. The cross-sections of the two partition plates 13 are U-shaped with their backs facing each other. The two sides of the connecting plate 14 are respectively on the two sides. The partition plate 13 is fixedly connected, so that the exhaust chamber of the box body 1 is formed by the bottom plate 11, the top plate 12, the two partition plates 13 and the two connecting plates 14, and the fan 2 is fixed in the exhaust chamber, and the air intake chamber is formed by the bottom plate 11, the top plate 12 and any one of the partition plates 13. One side of the air intake chamber is open and the open side is facing away from the exhaust chamber. The air cooling device has two exhaust chambers, which can simultaneously inhale external air from both ends of the box body 1 as a refrigerant, increase the ventilation volume, and improve the air cooling effect. A filter 113 is also provided below the air inlet 111, which can further ensure the cleanliness of the cold air entering the heat exchange device.

[0042] In order to prevent external dust from falling into the heat exchange device through the exhaust port 121, the exhaust cavity and the exhaust port 112 when the air cooling device is shut down, an umbrella-shaped dust cover 15 is provided directly above the exhaust port 121, and the dust cover 15 is fixed above the top plate 12 by a support 16.

[0043] A further improvement is that the nozzle 52 is arranged opposite to the open side of the air inlet cavity, the circumferential outer edge of the filter cartridge 31 is sealed to the side wall of the air inlet cavity, and the box body 1 is further provided with a liquid discharge port 131 communicating with the air inlet cavity.

[0044] In order to achieve a sealed connection between the side wall of the air inlet chamber and the circumferential outer edge of the filter cartridge 31, in the utility model, elastic sealing strips 132 extending in the vertical direction are fixed at both ends of the U-shaped notch of the partition plate 13. The two sealing strips 132 are arranged opposite each other and are both sealed with the circumferential outer edge of the filter cartridge 31. The sealing strips 132 are preferably sponges, which ensure that the sealing strips 132 can be elastically deformed while achieving a sealed connection with the circumferential outer edge of the filter cartridge 31. The drain port 131 is arranged at the bottom of both sides of the partition plate 13, and the nozzle 52 is arranged close to the bottom of the groove of the partition plate 13 and the nozzle of the nozzle 52 is facing the vacuum chamber.

[0045] After adopting the rising design, when the cleaning pump 51 draws the cleaning liquid and transports it to the nozzle 52, the nozzle 52 sprays a high-speed water flow from the inside of the filter cartridge 31 toward the side wall of the filter cartridge 31, and after washing off the dust particles accumulated on the filter cartridge 31, the cleaning liquid and dust particles fall into between the bottom plate 11 and the partition plate 13 of the air inlet cavity, and then are discharged downward through the drain ports 131 on both sides, so that the cleaning liquid mixed with dust particles is discharged from a fixed place, which is convenient for collection, and prevents dust particles and cleaning liquid from flowing to other locations and polluting the surrounding environment.

[0046] A further improvement is that the cleaning component 5 also includes a sealing groove 53 extending in the vertical direction and facing away from the open side of the air inlet cavity. The two ends of the sealing groove 53 are closed, and the nozzle 52 is arranged in the sealing groove 53. The side wall of the sealing groove 53 is sealedly connected to the circumferential inner wall of the filter cartridge 31 at one end away from the bottom of the sealing groove 53.

[0047] In order to achieve a sealed connection between the end of the side wall of the sealing groove 53 away from the bottom of the groove and the circumferential inner wall of the filter cartridge 31, a sponge strip 54 is provided between the two side walls of the sealing groove 53 and the axial inner wall of the filter cartridge 31. The sponge strip 54 extends along the length direction of the sealing groove 53, and the two ends of the sponge strip 54 are flush with the two ends of the sealing groove 53.

[0048] After adopting the above design, during the process of cleaning the filter cartridge 31, the cleaning liquid sprayed from the nozzle 52 hits the filter cartridge 31, and part of the cleaning liquid rebounds and splashes into the sealing groove 53. The sponge strip 54 can absorb the cleaning liquid in the gap between the side wall of the sealing groove 53 and the circumferential inner wall of the filter cartridge 31, thereby preventing the cleaning liquid from entering the interior of the heat exchange device through the air inlet 111.

[0049] To achieve a sealed connection between the bottom of the filter cartridge 31 and the bottom plate 11, the filter assembly 3 also includes a bottom ring 32 coaxially fixed to the bottom end of the filter cartridge 31. A sealing ring 33 is provided on the housing 1. The sealing ring 33 is sealed to the bottom surface and circumferential outer edge of the bottom ring 32. The sealing ring 33 is fixed above the bottom plate 11, and the air inlet 111 is located above the sealing ring 33. This prevents the cleaning fluid from leaking through the gap between the bottom of the filter cartridge 31 and the bottom plate 11 after flushing, which could cause the cleaning fluid to contaminate the surrounding environment.

[0050] A further improvement is that the bottom ring 32 is provided with drainage holes 321, which are distributed at intervals along the circumference of the bottom ring 32, and the sealing ring 33 is provided with liquid outlet holes 331 connected to the air inlet cavity. The movable path of the drainage holes 321 includes a connecting station, and the drainage holes 321 of the connecting station are combined with the liquid outlet holes 331 to form a channel, and the two ends of the channel are respectively connected to the bottom of the air inlet cavity and the bottom of the inner cavity of the filter cylinder 31.

[0051] like Figure 5 、 Figure 8 and Figure 9 As shown, the drainage holes 321 are distributed in a circular array on the bottom ring 32, and the two ends of the drainage holes 321 extend to the circumferential inner wall of the bottom ring 32 and the axial outer edge of the bottom ring 32 respectively, and the liquid outlet hole 331 on the sealing ring 33 is located in the groove of the partition plate 13. In this way, when the filter cartridge 31 is driven to rotate by the rotating component 4, when the filter cartridge 31 rotates to the connecting position, the drainage holes 321 and the liquid outlet holes 331 are coaxial and connected to each other, forming a channel, so that the cleaning liquid at the bottom of the inner cavity of the filter cartridge 31 can enter the inner side of the partition plate 13 through the drainage holes 321 and the liquid outlet holes 331 in turn, and then be discharged from the drainage ports 131 on both sides of the bottom of the partition plate 13, thereby avoiding the accumulation of cleaning liquid on the inner side of the filter cartridge 31.

[0052] A further improvement is that a cover 34 is connected to the top of the filter cartridge 31 , and the cleaning assembly 5 includes an infusion tube 55 that is coaxial with the filter cartridge 31 and seals through the cover 34 , and the output end of the cleaning liquid is connected to the nozzle 52 through the infusion tube 55 .

[0053] The cleaning assembly 5 also includes an extension tube 56 and a cleaning cover 57. The infusion tube 55 is integrally connected to the extension tube 56. The extension tube 56 and the cleaning cover 57 are both arranged in the filter cartridge 31. The cleaning cover 57 extends in the vertical direction. The cleaning cover 57 is fixedly connected to the inner bottom wall of the sealing groove 53 to enclose and form a cleaning cavity connected between the nozzle 52 and the extension tube 56. The infusion tube 55 is fixedly passed through the top plate 12.

[0054] After adopting the above structure, the cleaning liquid is extracted by the cleaning pump 51, and the cleaning liquid enters the cleaning chamber through the lumen of the infusion tube 55 and the lumen of the extension tube 56, and then enters the nozzle 52, and is ejected from the nozzle of the nozzle 52 to clean the filter cartridge 31.

[0055] A further improvement is that the rotating component 4 includes a rotating motor 41, the output end of the rotating motor 41 is connected to the driving wheel 42 coaxially, the driving wheel 42 is connected to the driven wheel 44 through a synchronous belt 43, the driven wheel 44 is fixedly connected to the filter cartridge 31 coaxially, and the infusion tube 55 passes through the driven wheel 44; the rotating component 4 also includes a protective shell 45 and a bearing 46, and the driving wheel 42, the driven wheel 44 and the synchronous belt 43 are all arranged in the protective shell 45.

[0056] Specifically, such as Figure 3 、 Figure 4 and Figure 6 As shown, the protective shell 45 is a protective cover fixed on the top plate 12, the outer ring and the inner ring of the bearing 46 are fixedly connected to the cover 34 and the top plate 12 respectively, the upper part of the driven wheel 44 is arranged in the protective cover, and the lower part is located on the inner side of the bearing 46 and is fixedly connected to the cover 34 coaxially. The driven wheel 44 sealing sleeve is arranged outside the infusion tube 55, the casing of the rotating motor 41 is fixed on the top of the protective shell 45, and the output end is downward and fixedly connected to the driven wheel 44 coaxially. The cleaning pump 51 is fixed on the top of the protective shell 45, and the output end is fixed through the top of the protective shell 45 and communicates with the top of the infusion tube 55.

[0057] After adopting the above structure, the protective shell 45 is used to protect the driven wheel 44, the synchronous belt 43 and the driving wheel 42. During the cleaning process of the filter cartridge 31, the rotating motor 41 is started to drive the driving wheel 42 in the protective shell 45 to rotate. The driving wheel 42 acts on the driven wheel 44 through the synchronous belt 43, so that the cover 34 fixedly connected to the driven wheel 44 coaxially rotates, and then under the action of the bearing 46, the cover 34 and the filter cartridge 31 rotate stably around their own center line, and cooperate with the cleaning pump 51 to extract the cleaning liquid. After passing through the infusion tube 55, the extension tube 56 and the cleaning cover 57 in turn, the cleaning liquid enters the nozzle 52 and is sprayed out from the nozzle 52 to achieve comprehensive cleaning of the rotating filter cartridge 31, so as to ensure the ventilation volume and facilitate the heat exchange device to achieve continuous heat exchange and cooling of the high-temperature fluid.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An air cooling device, characterized in that: include: A box body (1), wherein the box body (1) has an air inlet cavity and an air extraction cavity distributed horizontally, one side of the air inlet cavity is open, the top of the box body (1) is provided with an exhaust port (121) communicating with the air extraction cavity, and the bottom of the box body (1) is provided with an air inlet (111) and an air extraction port (112) communicating with the air extraction cavity, the air inlet (111) and the air extraction port (112) being respectively used to communicate with a refrigerant inlet and a refrigerant outlet of a heat exchange device; A fan (2), the fan (2) being arranged in the air extraction cavity; A filter assembly (3), the filter assembly (3) comprising a filter cartridge (31) axially vertical and rotatable about an axis in the air inlet cavity, the top end of the filter cartridge (31) being sealed, and the bottom end of the inner cavity being in communication with the air inlet (111); A rotating assembly (4), wherein the rotating assembly (4) drives the filter cartridge (31) to rotate around its own axis; A cleaning assembly (5), the cleaning assembly (5) comprising a cleaning pump (51) and a nozzle (52), the nozzle (52) being distributed in the filter cartridge (31) along a vertical direction and having a nozzle adjacent to the inner wall of the filter cartridge (31), the input end of the cleaning pump (51) being used for connecting to a cleaning liquid source, and the output end being in communication with the nozzle (52).

2. The air cooling device according to claim 1, characterized in that: The nozzle (52) is arranged opposite to the open side of the air inlet cavity, the circumferential outer edge of the filter cartridge (31) is sealed to the side wall of the air inlet cavity, and the box body (1) is also provided with a liquid discharge port (131) in communication with the air inlet cavity.

3. The air cooling device according to claim 2, characterized in that: The cleaning assembly (5) further comprises a sealing groove (53) extending in a vertical direction and facing away from the open side of the air inlet cavity, wherein both ends of the sealing groove (53) are closed, the nozzle (52) is arranged in the sealing groove (53), and an end of the side wall of the sealing groove (53) away from the bottom of the sealing groove (53) is sealedly connected to the circumferential inner wall of the filter cartridge (31).

4. The air cooling device according to claim 3, characterized in that: A sponge strip (54) is provided between the two side walls of the sealing groove (53) and the axial inner wall of the filter cartridge (31). The sponge strip (54) extends along the length direction of the sealing groove (53), and the two ends of the sponge strip (54) are flush with the two ends of the sealing groove (53).

5. The air cooling device according to claim 4, characterized in that: The filter assembly (3) further comprises a bottom ring (32) coaxially fixed to the bottom end of the filter cartridge (31), and a sealing ring (33) is provided on the housing (1), wherein the sealing ring (33) is sealedly connected to the bottom surface and circumferential outer edge of the bottom ring (32).

6. The air cooling device according to claim 5, characterized in that: The bottom ring (32) is provided with drainage holes (321), and the drainage holes (321) are spaced apart along the circumference of the bottom ring (32). The sealing ring (33) is provided with a liquid outlet hole (331) connected to the air inlet cavity. The movable path of the drainage hole (321) includes a connecting station. The drainage hole (321) of the connecting station and the liquid outlet hole (331) are combined to form a channel. The two ends of the channel are respectively connected to the bottom of the air inlet cavity and the bottom of the inner cavity of the filter cartridge (31).

7. The air cooling device according to claim 1, characterized in that: The top of the filter cartridge (31) is connected to a sealing cover (34). The cleaning assembly (5) includes a liquid infusion tube (55) coaxial with the filter cartridge (31) and sealingly passing through the sealing cover (34). The output end of the cleaning liquid is connected to the nozzle (52) through the liquid infusion tube (55).

8. The air cooling device according to claim 7, characterized in that: The rotating assembly (4) includes a rotating motor (41), the output end of the rotating motor (41) is coaxially connected to a driving wheel (42), the driving wheel (42) is connected to a driven wheel (44) via a synchronous belt (43), the driven wheel (44) is coaxially fixedly connected to the filter cartridge (31), and the infusion tube (55) passes through the driven wheel (44).

9. The air cooling device according to claim 8, characterized in that: The rotating assembly (4) further includes a protective shell (45), and the driving wheel (42), the driven wheel (44) and the synchronous belt (43) are all arranged in the protective shell (45).

10. The air cooling device according to any one of claims 1 to 9, characterized in that: The air inlet cavities are provided with two and the open sides are arranged back to back, and the air extraction cavity is arranged between the two air inlet cavities.

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