Sterilizing filter device and air conditioning cabinet

Abstract

This invention discloses a sterilization and filtration device and an air conditioning unit, relating to the field of air conditioning and dust removal in tobacco workshops, for achieving gas sterilization within the air conditioning unit. The sterilization and filtration device includes a filter, a mounting part, and a drying device. The filter includes a conical surface with multiple filter holes, and the bottom of the conical surface is open. The filter is rotatably mounted on the mounting part; the rotation center line of the filter is the axis of the conical surface. The drying device is installed on the outside of the conical surface to heat a portion of the conical surface. This technical solution simultaneously dries a localized area of ​​the filter during normal airflow filtration, achieving sterilization in that area.

Description

Technical Field

[0001] This invention relates to the field of air conditioning and dust removal in tobacco workshops, specifically to a sterilization and filtration device and an air conditioning unit. Background Technology

[0002] During air conditioning operation, return air flows from the workshop through return air ducts back into the air conditioning unit. This return air carries a significant amount of dust. A filter is installed inside the air conditioning unit to filter and trap this dust. The trapped dust is then adsorbed onto the filter screen.

[0003] The inventors discovered that the existing technology has at least the following problems: the dust contains a lot of bacteria and other pollutants, and because this dust is adsorbed on the filter screen, it will be sent back into the workshop through the air conditioning, posing a risk of infection to the personnel in the workshop. Summary of the Invention

[0004] This invention proposes a sterilization and filtration device and an air conditioning unit to achieve gas sterilization inside the air conditioning unit.

[0005] This invention provides a sterilization and filtration device, comprising:

[0006] A filter includes a conical surface comprising a plurality of filter holes, the bottom of the conical surface being open;

[0007] Mounting portion, wherein the filter is rotatably mounted; the rotation center line of the filter is the axis of the conical surface; and

[0008] A drying device is installed on the outside of the conical surface to heat a portion of the conical surface.

[0009] In some embodiments, the apex of the cone is located upstream of the rest of the cone.

[0010] In some embodiments, the sterilization filtration device further includes:

[0011] The driving component has one end fixedly installed at the center of the bottom opening of the conical surface, and the other end fixedly connected to the bottom edge of the conical surface; the driving component is configured to use airflow to drive the conical surface to rotate.

[0012] In some embodiments, the mounting portion includes:

[0013] The first bearing is installed at the cone apex of the filter;

[0014] The second bearing is located at the center of the cone bottom of the filter; and

[0015] The rotating shaft has one end rotatably connected to the cone apex of the conical surface via the first bearing, and the other end rotatably connected to the other end of the driving component via the second bearing.

[0016] In some embodiments, a seal is provided between one end of the drive member and the bottom of the conical surface to achieve a seal between the conical surface and the drive member.

[0017] In some embodiments, the drive element includes a guide vane.

[0018] In some embodiments, the drying device is installed on the leeward side of the filter.

[0019] In some embodiments, the drying apparatus includes:

[0020] The drying body includes a gas chamber, a fluid inlet, and a fluid outlet; both the fluid inlet and the fluid outlet are in fluid communication with the gas chamber.

[0021] A pipe, located upstream of the drying body and in communication with the fluid inlet; and

[0022] A first control valve is installed in the pipeline to control the air flow rate in the pipeline.

[0023] In some embodiments, the sterilization filtration device further includes:

[0024] A dust collection device is installed at the lowest point of the windward side of the cone surface, and the dust collection device is configured to adsorb dust adhering to the outside of the cone surface.

[0025] In some embodiments, the vacuuming device includes:

[0026] The negative pressure body includes a negative pressure cavity, an adsorption port communicating with the negative pressure cavity, and a vacuum port located upstream of the negative pressure cavity; the adsorption port is located on the surface of the negative pressure body facing the conical surface;

[0027] A vacuum tube, connected to the vacuum port, is located upstream of the negative pressure chamber;

[0028] A second control valve, installed in the vacuum tube, controls the opening degree of the vacuum tube; and

[0029] A brush strip is installed on the surface of the negative pressure body facing the conical surface.

[0030] In some embodiments, the adsorption port is configured as a strip, and the number of adsorption ports is at least two; each of the adsorption ports is located in the edge region of the negative pressure body; the brush strip is located in the middle region of the negative pressure body.

[0031] In some embodiments, the surface shape of the negative pressure body facing the conical surface at least partially matches the shape of the conical surface, and a gap is provided between the negative pressure body and the conical surface to prevent the negative pressure body from hindering the movement of the conical surface.

[0032] In some embodiments, the surface shape of the negative pressure body facing the conical surface is at least partially configured to be concave, and the brush strip is located in the concavity.

[0033] This invention also provides an air conditioning unit, comprising:

[0034] The housing includes a cavity, an inlet, and an outlet; and

[0035] The sterilization and filtration device provided by any technical solution of the present invention has a conical surface rotatably installed in the cavity, with the apex of the conical surface facing the inlet of the housing and the bottom of the conical surface facing the outlet of the housing.

[0036] In some embodiments, the bottom edge of the conical surface and the inner wall of the housing are airtightly connected.

[0037] The sterilization and filtration device provided by the above technical solution includes a filter, an installation part, and a drying device. The conical surface of the filter serves as the filtration surface, and the airflow entering the air conditioning unit is completely filtered before exiting. The drying device is located on the outside of the conical surface to heat at least a portion of the conical surface. The drying device can dry a localized area of ​​the conical surface to reduce the stickiness of dust adhering there. The size of the drying device is smaller than the size of the conical surface, and the drying device heats only a portion of the conical surface at a time, thus not affecting the normal passage of the airflow to be filtered through the filter. Therefore, the above technical solution simultaneously achieves the drying of a localized area of ​​the filter during the normal airflow filtration process, thereby achieving a sterilization effect in that area. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0039] Figure 1 This is a top-view cross-sectional view of the air conditioning unit provided in an embodiment of the present invention.

[0040] Figure 2 This is a front view sectional view of the air conditioning unit excluding the unit body, provided in an embodiment of the present invention.

[0041] Figure 3 for Figure 2 A schematic diagram of the AA section.

[0042] Figure 4 This is a schematic diagram of the drying device structure of the sterilization and filtration device.

[0043] Figure 5 This is a schematic diagram of the structure where dust adheres to the cone surface.

[0044] Figure 6 This is a top view of the dust collection device of the sterilization and filtration device provided in an embodiment of the present invention.

[0045] Figure 7 This is a right-side view of the vacuum cleaner device provided in an embodiment of the present invention.

[0046] Figure label:

[0047] 100. Cabinet body; 200. Sterilization and filtration device;

[0048] 101. Cavity; 102. Inlet; 103. Outlet;

[0049] 1. Filter; 2. Mounting unit; 3. Drying device; 4. Drive unit; 5. Dust collection device; 6. Sealing unit;

[0050] 21. First bearing; 22. Second bearing; 23. Shaft;

[0051] 31. Drying body; 32. Pipeline; 33. First control valve;

[0052] 311. Gas chamber; 312. Fluid inlet; 313. Fluid outlet;

[0053] 51. Negative pressure body; 52. Vacuum tube; 53. Second control valve; 54. Brush strip;

[0054] 511. Negative pressure chamber; 512. Adsorption port; 513. Vacuum port; 514. Arc surface. Detailed Implementation

[0055] The following is combined Figures 1 to 7 The technical solution provided by this invention will be described in more detail below.

[0056] The inventors discovered through research that high-temperature baking of dust adsorbed on the filter screen, raising the dust temperature to above 65°C, can kill most bacteria and reduce the bacterial content in the air conditioning system. Therefore, the embodiments of this invention provide the following technical solution.

[0057] See Figures 1 to 3This invention provides an air conditioning unit, which includes a housing 100 and a sterilization and filtration device 200 installed inside the housing 100. The sterilization and filtration device 200 is used to filter the airflow that flows in through the inlet 102 of the housing 100, and the filtered airflow flows out of the housing 100 through the outlet 103 of the housing 100.

[0058] The housing 100 is generally rectangular or cylindrical, with its axis parallel to the horizontal. The inlet 102 is located on one of the bottom surfaces of the housing 100, and the outlet 103 is located on the other bottom surface. Air enters the housing 100 through the inlet 102, and after being sterilized and filtered by the sterilization and filtration device 200, it exits through the outlet 103. Dust in the airflow is filtered out by the sterilization and filtration device 200, so the airflow exiting through the outlet 103 is pure.

[0059] See Figure 2 The sterilization and filtration device 200 includes a filter 1, a mounting part 2, and a drying device 3. The filter 1 includes a conical surface with multiple filter holes (not shown), and the bottom of the conical surface is open. The filter 1 is rotatably mounted on the mounting part 2; the rotation center line of the filter 1 is the axis of the conical surface. The drying device 3 is mounted on the outside of the conical surface to heat at least a portion of the conical surface. If the housing 100 is rectangular, a seal with an outer square and inner circle shape can be provided between the filter 1 and the housing 100 to achieve an airtight connection between the inner wall of the housing 100 and the outer wall of the bottom edge of the filter 1. If the housing 100 is cylindrical, a seal can be provided between the filter 1 and the housing 100 to achieve an airtight connection between the inner wall of the housing 100 and the bottom edge of the filter 1.

[0060] The conical surface of the sterilization and filtration device 200 is placed horizontally, meaning that the central axis of the conical surface of the sterilization and filtration device 200 is also parallel to the horizontal line.

[0061] In some embodiments, the apex of the cone is located upstream of the rest of the cone. Airflow passes through the cone from the side where the apex is located, is filtered, and then exits from the opening at the bottom of the cone. The entire cone is considered a cone. The outer surface of the cone is the windward side, and the inner surface is the leeward side. Air enters the inner cavity of the cone after passing through the outer side of the cone and being filtered by the cone filter media. The filter material is a high-temperature resistant material. The cone surface can also be made of other high-temperature resistant materials such as wire mesh.

[0062] See Figures 2 to 3 In some embodiments, the sterilization and filtration device 200 further includes a drive member 4. One end of the drive member 4 is fixedly mounted to the bottom opening of the conical surface, and the drive member 4 is configured to use airflow to drive the conical surface to rotate.

[0063] Mounting part 2 includes a first bearing 21, a second bearing 22, and a rotating shaft 23. The first bearing 21 is mounted at the cone top of the filter 1. The second bearing 22 is located at the center of the cone bottom of the filter 1. One end of the rotating shaft 23 is rotatably connected to the cone top of the cone surface through the first bearing 21, and the other end of the rotating shaft 23 is rotatably connected to the other end of the driving member 4 through the second bearing 22.

[0064] In some embodiments, a sealing element 6 is provided between the inner wall of the housing 100 and the bottom of the conical surface to achieve a seal between the inner wall of the housing 100 and the conical surface 4.

[0065] See Figure 3 The drive component 4 includes guide vanes. The guide vanes are shaped similarly to fan blades. One end of the guide vane is mounted on the rotating shaft 23, and the other end is mounted on the bottom of the filter 1. Since the bottom of the filter 1 is an open airflow channel, the guide vanes provide support to the bottom of the filter 1. There are two or more guide vanes. During operation, the rotating shaft 23 does not need to rotate; the guide vanes are automatically rotated by the filtered air, and the filter 1 rotates synchronously with the guide vanes.

[0066] Specifically, when airflow passes through the guide vanes, the wind force causes the guide vanes to rotate, which in turn drives the filter 1 to rotate synchronously. When the filtered airflow is large, the guide vanes rotate faster, and the filter 1 rotates at a higher speed; conversely, it rotates slower. The guide vanes automatically adjust the speed of the filter 1 according to the amount of air being filtered. This technical solution requires no power source; it utilizes the airflow itself to rotate the filter 1. The overall structure is very ingenious, highly efficient, and energy-saving.

[0067] In some embodiments, the angle of the guide vane relative to rotation is adjustable. Under certain air conditioning airflow speed conditions, adjusting the installation angle of the guide vane can adjust the rotation speed of the filter 1, thereby adjusting the drying speed of the drying device 3 and the dust collection speed of the dust collection device 5, which will be described later.

[0068] See Figure 2 and Figure 4 In some embodiments, the drying device 3 is installed on the leeward side of the filter 1. The drying area of ​​the drying device 3 in a single operation is smaller than the filtration area of ​​the filter 1, and the drying device 3 is used to dry a portion of the filter 1.

[0069] See Figure 4In some embodiments, the drying device 3 includes a drying body 31, a pipe 32, and a first control valve 33. The drying body 31 includes a gas chamber 311, a fluid inlet 312, and a fluid outlet 313. Both the fluid inlet 312 and the fluid outlet 313 are in fluid communication with the gas chamber 311. The pipe 32 is located upstream of the drying body 31 and is in communication with the fluid inlet 312. The first control valve 33 is installed on the pipe 32, and by adjusting the opening degree of the first control valve 33, the air flow rate in the pipe 32 is controlled to adjust the drying intensity of the drying device 3.

[0070] See Figure 4 To concentrate drying heat, the drying body 31 is roughly strip-shaped, with a width of approximately 10 cm. The drying device 3 is a sealed cavity, not exchanging fluid with the gas to be filtered. The drying body 31 is installed at the bottom of the inner cavity of the cone, from the top to the bottom. The bottom of the inner cavity of the cone refers to the area near the lowest point of the drying body 31 during actual operation. The drying device 3 dries a small area of ​​the filter 1, reducing the stickiness of the adhering dust, allowing the drying body 31 and the adhering dust, bacteria, etc., to reach a higher temperature in a shorter time. Most toxic and harmful bacteria use dust as a carrier and are adsorbed onto the dust. As the temperature rises, the bacterial activity decreases, and they may even die. The drying device 3 can increase the temperature of the dust, for example, locally reaching above 100°C, thus eliminating bacteria.

[0071] See Figure 2 ,and Figure 4 The drying device 3 is small in size and will not affect the normal airflow through the filter 1. The drying device 3 can operate online while the air conditioning unit is running, and reduces the impact on the temperature and humidity control of the air conditioning unit.

[0072] Drying device 3 can use an electric heat source or a steam heat source. Drying device 3 has a good drying effect on the wet part of the dust. Specifically, drying device 3 uses steam to dry the dust. The drying temperature can be adjusted by regulating the opening of the heating valve. See also... Figure 5 Dust adheres to the outer surface of the cone, i.e., the windward side. The dust particles are dried by the blowing airflow; the dust at the contact point with the cone surface has high moisture content, forming the wet portion of the dust, which has strong adhesion. The remaining parts of the dust are dried by the blowing airflow, forming the dry portion of the dust, which has less adhesion. Therefore, drying the inner surface of the cone surface with steam or similar agents can quickly increase the dryness of the wet portion of the dust adhering to the outer surface, facilitating dust removal. In other embodiments, condensed water can be used instead of steam as a heat source, thereby reducing steam energy consumption. The drying temperature is adjustable to achieve sterilization as needed.

[0073] See Figure 2 and Figure 6 In some embodiments, the sterilization filter device 200 further includes a dust collection device 5, which is configured to adsorb dust adhering to the exterior of the cone surface. The dust collection device 5 is installed at the lowest point of the windward side of the cone surface to facilitate the adsorption of falling dust.

[0074] The dust collection device 5 is installed on the outer side of the cone surface, and the drying device 3 is installed on the inner side of the cone surface. The drying device 3 and the dust collection device 5 are installed opposite each other. The installation position, adsorption area, and operating time of the dust collection device 5 are similar to or synchronized with those of the drying device 3.

[0075] The single-pass suction area of ​​the vacuuming device 5 is smaller than the filtration area of ​​the filter 1, and the vacuuming device 5 is used to perform localized suction on the filter 1. As the filter 1 rotates, the vacuuming device 5 automatically suctions dust from other areas, so that the filter surface of the filter 1 is thoroughly cleaned.

[0076] See Figure 6 In some embodiments, the vacuuming device 5 includes a negative pressure body 51, a vacuum tube 52, a second control valve 53, and a brush strip 54. The negative pressure body 51 includes a negative pressure chamber 511, an adsorption port 512 communicating with the negative pressure chamber 511, and a vacuum port 513 located upstream of the negative pressure chamber 511. The negative pressure chamber 511 facilitates the stability of the negative pressure. The adsorption port 512 is located on the surface of the negative pressure body 51 facing the conical surface. The vacuum tube 52 communicates with the vacuum port 513 and is located upstream of the negative pressure chamber 511. The second control valve 53 is installed on the vacuum tube 52 to control the opening degree of the vacuum tube 52, thereby adjusting the adsorption pressure and adsorption effect of the vacuuming device 5. The brush strip 54 is installed on the surface of the negative pressure body 51 facing the conical surface, and the brush strip 54 is in contact with the surface of the negative pressure body 51 facing the conical surface. The brush strip 54 is interference-fitted with the conical surface and is made of a soft material, such as rubber.

[0077] See Figure 6 In some embodiments, the adsorption port 512 is constructed as a strip, and the number of adsorption ports 512 is at least two; each adsorption port 512 is located in the edge region of the negative pressure body 51; the brush strip 54 is located in the middle region of the negative pressure body 51. The two adsorption ports 512 are respectively: a first adsorption port 512a located upstream and a second adsorption port 512b located downstream.

[0078] See Figure 6 and Figure 7 In some embodiments, the surface shape of the negative pressure body 51 facing the conical surface at least partially matches the shape of the conical surface, and there is a gap between the negative pressure body 51 and the conical surface to prevent the negative pressure body 51 from hindering the movement of the conical surface.

[0079] See Figure 7Specifically, the surface of the negative pressure body 51 facing the conical surface includes two arc-shaped surfaces 514. The curvature of the two arc-shaped surfaces 514 is the same as the curvature of the filter 1 surface. The two arc-shaped surfaces 514 are installed as close as possible to the filter 1 to increase the dust collection effect. There is a gap between the arc-shaped surfaces 514 and the surface of the filter 1. The gap size is as small as possible, for example, 1mm to 2mm, without affecting the normal rotation of the filter 1, to improve the adsorption effect. The length and width of each arc-shaped surface 514 are basically the same as the length and width of the brush strip 54.

[0080] See Figure 7 In some embodiments, the surface shape of the negative pressure body 51 facing the conical surface is at least partially configured to be concave, and the brush strip 54 is located in the concave area.

[0081] See Figure 6 and Figure 7 The brush strip 54 has an internal cavity that is connected to the negative pressure chamber 511. This structure can prevent secondary dust generation when the brush strip 54 is brushing away dust.

[0082] During the rotation of filter 1, the dust collection device 5 does not rotate with filter 1. Both suction ports 512 of the negative pressure body 51 are under negative pressure.

[0083] The entire adsorption process is as follows: First, the first adsorption port 512 located upstream uses negative pressure to initially adsorb the dust a adhering to the surface of filter 1. This operation can adsorb a large amount of dust, especially the dry part a1 of dust a, to reduce the drying load of drying device 3. See [link to relevant documentation]. Figure 5 .

[0084] Then, as the filter 1 rotates relative to the dust collection device 5, the drying device 3 continuously dries the remaining dust. At the same time, the brush strip 54 scrapes the wet part a2 of the exposed dust a, which can remove some of the dust. The brush strip 54 makes interference contact with the conical surface, which can achieve a good brushing effect.

[0085] Subsequently, the second adsorption port 512 located downstream performs a secondary adsorption on the filter media dust loosened by the brush strip 54 on the surface of filter 1. This primarily adsorbs the wet portion of the dust. (See [link]). Figure 5 The above technical solution involves two adsorptions and one loosening of dust on the surface of filter 1, with one adsorption occurring before the loosening operation and the other after the loosening operation. The adsorption effect is excellent and can effectively remove dust adhering to the surface of filter 1.

[0086] The above technical solution allows for the activation of the drying device 3 and the dust collection device 5 as needed, enabling periodic or intermittent high-temperature heating of the filter 1 to eliminate or reduce bacteria in the filter dust. The rotational speed of the filter 1, the drying temperature of the drying device 3, and the vacuum pressure of the adsorption device can be adjusted to regulate the dust removal and sterilization effects of the filter 1.

[0087] See Figure 1 This invention also provides an air conditioning unit, including a housing 100 and a sterilization and filtration device 200 provided by any of the technical solutions of this invention. The housing 100 includes a cavity 101, an inlet 102, and an outlet 103. The conical surface of the sterilization and filtration device 200 is rotatably mounted in the cavity 101, with the apex of the conical surface facing the inlet 102 of the housing 100 and the bottom of the conical surface facing the outlet 103 of the housing 100.

[0088] The number of sterilization and filtration devices 200 installed inside the housing 100 is one or more, and the central axes of the multiple sterilization and filtration devices 200 are parallel. Each sterilization and filtration device 200 is installed horizontally, and its respective rotating shaft 23 is parallel to the airflow of the air conditioner, with the airflow blowing from the top of the cone to the bottom of the cone.

[0089] In some embodiments, the bottom edge of the conical surface is airtightly connected to the inner wall of the housing 100.

[0090] A sealing assembly 6 is installed between the filter 1 and the wall panel of the air conditioning unit. The sealing assembly 6 can be a labyrinth seal assembly made of a soft material to minimize the size of the gaps. When the filter 1 rotates, the labyrinth seal assembly can provide a good dynamic seal, reducing the leakage of unfiltered airflow from the joints.

[0091] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air conditioning unit, characterized in that, include: The housing (100) includes a cavity (101), an inlet (102), and an outlet (103); and A sterilization and filtration device (200) is provided, wherein the conical surface of the sterilization and filtration device (200) is rotatably mounted in the cavity (101), the apex of the conical surface faces the inlet (102) of the cavity (100), and the bottom of the conical surface faces the outlet (103) of the cavity (100). The sterilization and filtration device (200) includes: The filter (1) includes a conical surface, the conical surface including a plurality of filter holes, the bottom of the conical surface being open; Mounting part (2), the filter (1) is rotatably mounted on the mounting part (2); the rotation center line of the filter (1) is the axis of the conical surface; A drying device (3) is installed on the outside of the conical surface to heat a portion of the conical surface; and The driving component (4) is fixedly installed at one end at the center of the bottom opening of the cone surface, and the other end is fixedly connected to the bottom edge of the cone surface; the driving component (4) is configured to drive the cone surface to rotate by airflow; the driving component (4) includes a guide vane, which is configured to automatically adjust the rotation speed of the filter (1) according to the amount of airflow being filtered, without the need for a power source; The sterilization and filtration device (200) further includes: A dust collection device (5) is installed at the lowest point of the windward side of the cone surface, and the dust collection device (5) is configured to adsorb dust adhering to the outside of the cone surface; The vacuuming device (5) includes: The negative pressure body (51) includes a negative pressure cavity (511), an adsorption port (512) communicating with the negative pressure cavity (511), and a vacuum port (513) located upstream of the negative pressure cavity (511); the adsorption port (512) is located on the surface of the negative pressure body (51) facing the conical surface; A vacuum tube (52) is connected to the vacuum port (513) and is located upstream of the negative pressure chamber (511); A second control valve (53) is installed in the vacuum tube (52) to control the opening degree of the vacuum tube (52); and A brush strip (54) is installed on the surface of the negative pressure body (51) facing the conical surface.

2. The air conditioning unit according to claim 1, characterized in that, The apex of the cone is located upstream of the rest of the cone.

3. The air conditioning unit according to claim 1, characterized in that, The mounting part (2) includes: The first bearing (21) is installed at the cone top of the filter (1); The second bearing (22) is located at the center of the cone bottom of the filter (1); and The rotating shaft (23) is rotatably connected at one end to the cone top of the cone surface via the first bearing (21), and at the other end to the other end of the driving member (4) via the second bearing (22).

4. The air conditioning unit according to claim 1, characterized in that, The drying device (3) is installed on the leeward side of the filter (1).

5. The air conditioning unit according to claim 1, characterized in that, The drying device (3) includes: The drying body (31) includes a gas chamber (311), a fluid inlet (312), and a fluid outlet (313); the fluid inlet (312) and the fluid outlet (313) are both in fluid communication with the gas chamber (311); The conduit (32), located upstream of the drying body (31) and in communication with the fluid inlet (312); and A first control valve (33) is installed in the pipeline (32) to control the air flow rate in the pipeline (32).

6. The air conditioning unit according to claim 1, characterized in that, The adsorption port (512) is constructed in a strip shape, and the number of adsorption ports (512) is at least two; each of the adsorption ports (512) is located in the edge region of the negative pressure body (51); the brush strip (54) is located in the middle region of the negative pressure body (51).

7. The air conditioning unit according to claim 1, characterized in that, The surface shape of the negative pressure body (51) facing the cone surface is at least partially matched with the shape of the cone surface, and there is a gap between the negative pressure body (51) and the cone surface to prevent the negative pressure body (51) from hindering the movement of the cone surface.

8. The air conditioning unit according to claim 1, characterized in that, The surface shape of the negative pressure body (51) facing the conical surface is at least partially constructed to be concave, and the brush strip (54) is located in the concavity.

9. The air conditioning unit according to claim 1, characterized in that, The bottom edge of the cone surface is airtightly connected to the inner wall of the box (100).

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