Air duct assembly, cabinet air conditioner and control method thereof

Abstract

The application provides a kind of air duct assembly, cabinet air conditioner and its control method, wherein air duct assembly, including: air duct shell, air duct shell is configured with air inlet and four upper and lower left and right air outlets;Air port switching assembly includes air port switching cylinder and driving device, the first air port and the second air port are oppositely arranged on the cylinder wall of air port switching cylinder, when air port switching cylinder is in the first air supply state, the first air port is communicated with the upper air outlet, the second air port is communicated with the lower air outlet, when air port switching cylinder is in the second air supply state, the first air port is communicated with one of left air outlet and right air outlet, and the second air port is communicated with the other of left air outlet and right air outlet, and the driving device can drive air port switching cylinder to switch between the first air supply state and the second air supply state.The application improves the left and right air supply range and air supply distance of air conditioner by the flexible selection of up and down air supply and left and right air supply, realizes the rapid reduction of room temperature and the large-area air sweeping function.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, specifically relating to an air duct assembly, a cabinet air conditioner, and its control method. Background Technology

[0002] To achieve sufficient cooling and heating exchange and user comfort, floor-standing air conditioners with top and bottom air outlets have become the mainstream air conditioning products. The dual top and bottom air outlets realize distributed air supply, ensuring sufficient exchange of hot and cold air and improving the heat exchange efficiency of the air conditioner. However, due to the limitation of the top and bottom air outlets, the left and right air supply range and air supply distance of the air conditioner are also limited, making it impossible to achieve rapid cooling of indoor air, and also unable to achieve a large area sweeping function. Summary of the Invention

[0003] Therefore, the present invention provides an air duct assembly, a cabinet air conditioner and its control method, which can solve the technical problems in the prior art where the air duct assembly with top and bottom air outlets limits the left and right air supply range and air supply distance of the air conditioner, making it impossible to achieve rapid cooling of indoor air, and also unable to achieve large-area air sweeping function.

[0004] To address the above problems, the present invention provides an air duct assembly, comprising:

[0005] The air duct housing has an air inlet, an upper air outlet and a lower air outlet arranged opposite each other, and a left air outlet and a right air outlet arranged opposite each other, wherein the upper air outlet, the lower air outlet, the left air outlet and the right air outlet are located around the air inlet;

[0006] An air outlet switching assembly includes an air outlet switching cylinder and a driving device. The cylinder wall of the air outlet switching cylinder is constructed with a first air outlet and a second air outlet arranged opposite to each other. The air outlet switching cylinder has a first air supply state and a second air supply state. When the air outlet switching cylinder is in the first air supply state, the first air outlet is connected to the upper air outlet and the second air outlet is connected to the lower air outlet. When the air outlet switching cylinder is in the second air supply state, the first air outlet is connected to one of the left air outlet and the right air outlet, and the second air outlet is connected to the other of the left air outlet and the right air outlet. The driving device can drive the air outlet switching cylinder to switch between the first air supply state and the second air supply state.

[0007] In some implementations...

[0008] The first end of the air outlet switching cylinder has a guide ring coaxially matched with the air inlet, and the diameter of the guide ring gradually expands along the flow direction of the airflow exiting the air inlet; and / or,

[0009] The cross-section of the air outlet switching cylinder is circular at any position.

[0010] In some implementations...

[0011] The first air vent and the second air vent extend from the first end to the second end of the air vent switching cylinder and pass through the second end. The width of the first air vent and the second air vent in the circumferential direction of the air vent switching cylinder is not less than the corresponding width of the upper air vent, lower air vent, left air vent and right air vent that correspond to them.

[0012] In some implementations...

[0013] The driving device is a rotary driving device, which can drive the air outlet switching cylinder to rotate so as to switch it between the first air supply state and the second air supply state.

[0014] In some implementations...

[0015] The rotary drive device includes a first rotary motor and a drive gear. The drive gear is connected to the rotating shaft of the first rotary motor. The outer peripheral wall of the air outlet switching cylinder has a toothed ring. The toothed ring is coaxial with the air outlet switching cylinder. The drive gear meshes with the toothed ring.

[0016] In some implementations...

[0017] The toothed ring is provided with axial limiting protrusions at both ends of the axial direction.

[0018] In some implementations...

[0019] The rotary drive device is provided in two sets, and the two sets of rotary drive devices are respectively located on opposite sides of the air outlet switching cylinder.

[0020] In some implementations...

[0021] The rotary drive device is assembled on the air duct housing; and / or

[0022] A limiting gear can also be rotatably connected to the air duct housing. The limiting gear meshes with the toothed ring, and the limiting gear and the rotary drive device are evenly spaced around the toothed ring.

[0023] In some embodiments, the duct assembly further includes:

[0024] A centrifugal fan is located in the hollow cylindrical space of the air outlet switching cylinder. The centrifugal fan includes a second rotary motor and a fan wheel that is driven and connected to the shaft of the second rotary motor. The air inlet side of the fan wheel is matched with the air inlet. The second rotary motor is assembled on the air duct housing.

[0025] The present invention also provides a cabinet air conditioner, including an air duct component, wherein the air duct component is the air duct assembly described above.

[0026] The present invention also provides a control method for a cabinet air conditioner, comprising the following steps:

[0027] Obtain control commands.

[0028] When the control command is to operate the up and down air supply mode, the air outlet switching cylinder is controlled to be in the first air supply state;

[0029] When the control command is to run the left and right air supply mode, the air outlet switching cylinder is controlled to be in the second air supply state.

[0030] The present invention provides an air duct assembly, a cabinet air conditioner, and a control method thereof, which have the following beneficial effects:

[0031] By switching the state of the air outlet switching tube, the air supply of the air conditioner using the present invention can be switched between the up-down air supply mode and the left-right air supply mode. This allows the air duct component and the corresponding air conditioner in the present invention to improve the left-right air supply range and air supply distance of the air conditioner through the flexible selection of up-down air supply and left-right air supply, thereby achieving rapid reduction of room temperature and large-area air sweeping function.

[0032] Four air outlets are constructed simultaneously at four positions on the top, bottom, left, and right of the same air duct shell, and the two sets of air outlets in different directions can be selected through the air outlet switching cylinder. There is no need to design two sets of air ducts separately, which makes the air conditioner structure more compact and the overall volume occupied is relatively small, while also reducing the assembly difficulty.

[0033] The air outlet switching tube is located closer to the air inlet, thus effectively preventing airflow loss at the corresponding air duct position caused by setting a separate damper at the corresponding air outlet to control its opening and closing, and ensuring the utilization rate of air volume. Attached Figure Description

[0034] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0035] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0036] Figure 1 This is a schematic diagram of the external structure of an air duct assembly according to an embodiment of the present invention;

[0037] Figure 2 This is an exploded structural diagram of a duct assembly according to an embodiment of the present invention;

[0038] Figure 3 for Figure 2 A front view of the air duct casing in the middle;

[0039] Figure 4 for Figure 2 A three-dimensional structural diagram of the air outlet switching cylinder;

[0040] Figure 5 for Figure 4 Side view of the air vent switching cylinder;

[0041] Figure 6 This is a schematic diagram of the air duct assembly in the first air supply state in an embodiment of the present invention. The arrows in the diagram indicate the direction of airflow.

[0042] Figure 7 This is a schematic diagram of the air duct assembly in the second air supply state in an embodiment of the present invention. The arrows in the diagram indicate the direction of airflow.

[0043] Figure 8 This is an exploded structural diagram of a cabinet air conditioner according to another embodiment of the present invention.

[0044] The reference numerals in the attached figures are as follows:

[0045] 11. Upper air outlet; 12. Lower air outlet; 13. Left air outlet; 14. Right air outlet; 15. Air inlet; 161. Duct housing; 1611. Motor mounting bracket; 1612. Gear housing; 162. Duct cover;

[0046] 21. Air outlet switching tube; 211. First air outlet; 212. Second air outlet; 213. Guide

[0047] Flow ring; 214, gear ring; 215, axial limiting protrusion ring;

[0048] 221. First rotary motor; 222. Drive gear; 23. Limit gear;

[0049] 31. Second rotary motor; 32. Wind turbine;

[0050] 100. Front decorative panel; 101. Middle frame decorative panel; 1011. Left air outlet; 1012. Right air outlet; 103. Air inlet panel; 201. Air duct component; 202. Upper air outlet component; 203. Lower air outlet component; 204. Base; 205. Heat exchanger component. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0054] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0055] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0056] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0057] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0058] See also Figure 1and Figure 8 As shown, according to an embodiment of the present invention, a duct assembly is provided, comprising:

[0059] The air duct housing (not labeled in the figure) has an air inlet 15, an upper air outlet 11 and a lower air outlet 12 arranged opposite each other, and a left air outlet 13 and a right air outlet 14 arranged opposite each other. The upper air outlet 11, lower air outlet 12, left air outlet 13, and right air outlet 14 are located around the air inlet 15. See details [link to figure]. Figure 2 As shown, the aforementioned air duct housing specifically includes an air duct volute 161 and an air duct cover 162 assembled therewith, so as to facilitate the assembly of the various components inside.

[0060] The air vent switching assembly (not labeled in the figure) includes the air vent switching cylinder 21 and the drive device (not labeled in the figure), see details. Figure 4 The air outlet switching cylinder 21 has a first air outlet 211 and a second air outlet 212 arranged opposite to each other on its cylinder wall. The air outlet switching cylinder 21 has a first air supply state and a second air supply state. When the air outlet switching cylinder 21 is in the first air supply state, the first air outlet 211 is connected to the upper air outlet 11 and the second air outlet 212 is connected to the lower air outlet 12, thereby realizing the upper and lower air supply mode of the corresponding air conditioner. When the air outlet switching cylinder 21 is in the second air supply state, the first air outlet 211 is connected to one of the left air outlet 13 and the right air outlet 14, and the second air outlet 212 is connected to the other of the left air outlet 13 and the right air outlet 14, thereby realizing the left and right air supply mode of the corresponding air conditioner. The driving device can drive the air outlet switching cylinder 21 to switch between the first air supply state and the second air supply state. It can be understood that the air duct assembly is also equipped with a corresponding airflow driving component to drive the external airflow into the air conditioner and send it out after heat exchange at the heat exchanger.

[0061] In this technical solution, the air outlet switching cylinder 21 allows the air supply of the air conditioner using this invention to switch between up-and-down air supply mode and left-and-right air supply mode. This enables the air duct assembly and the corresponding air conditioner to flexibly select between up-and-down and left-and-right air supply, increasing the left-and-right air supply range and distance, achieving rapid temperature reduction and large-area air sweeping function. Furthermore, it should be noted that this invention simultaneously constructs four air outlets at four positions (up, down, left, and right) on the same air duct housing, and uses the air outlet switching cylinder 21 to select between two sets of air outlets in different directions. This eliminates the need for separate design of two sets of air ducts, resulting in a more compact air conditioner structure, a smaller overall volume, and reduced assembly difficulty.

[0062] See details Figure 4As shown, in some embodiments, the cross-section of the air outlet switching cylinder 21 at any position is circular, that is, the air outlet switching cylinder 21 is roughly cylindrical in appearance. This allows for switching between the first and second air supply states by rotating the air outlet switching cylinder 21, resulting in a simpler and more compact structural design. More importantly, the cylindrical shape of the air outlet switching cylinder 21 in this invention conforms to the volute profile of the fan, thereby helping to reduce airflow noise. It is understood that while using a conventional air guide plate can selectively open and close the air outlet, it disrupts the volute profile and increases airflow noise.

[0063] In addition, it should be noted that the air outlet switching cylinder 21 in this invention is located closer to the air inlet 15. Therefore, it can effectively prevent the loss of airflow at the corresponding air duct position caused by setting a separate air damper at the corresponding air outlet to control its opening and closing, thus ensuring the utilization rate of air volume.

[0064] The first end of the air outlet switching cylinder 21 has a guide ring 213 coaxially matched with the air inlet 15. The diameter of the guide ring 213 gradually expands along the flow direction of the airflow exiting the air inlet 15. The aforementioned guide ring 213 forms a frustum structure. During specific assembly, the small diameter end of the frustum structure is positioned opposite to the aforementioned air inlet 15, which can guide the airflow entering the air duct, ensure the smoothness of air intake, and thereby reduce the generation of airflow noise.

[0065] See also Figure 4 As shown, in some embodiments, the first air vent 211 and the second air vent 212 extend from the first end to the second end of the air vent switching cylinder 21 and penetrate the second end. The width of each of the first air vent 211 and the second air vent 212 in the circumferential direction of the air vent switching cylinder 21 is not less than the corresponding width of the upper air outlet 11, lower air outlet 12, left air outlet 13, and right air outlet 14. That is, when the aforementioned air vent switching cylinder 21 is switched to… In the first air supply state, the first air outlet 211 and the upper air outlet 11 are aligned vertically. At this time, the circumferential width of the air outlet switching cylinder 21 is greater than the circumferential width of the air outlet switching cylinder 21, so that the first air outlet 211 and the second air outlet 212 in this invention will not obstruct the airflow direction of the air inlet 15 into the air duct to the air outlet connected to it, such as the upper air outlet 11 and the lower air outlet 12 in the first air supply state, and the left air outlet 13 and the right air outlet 14 in the second air supply state.

[0066] That is, in this technical solution, by designing the first air outlet 211 and the second air outlet 212 to extend through the second end of the air outlet switching cylinder 21 along its axial direction and limiting its circumferential width, it is possible to ensure that the airflow is smoothly delivered from the corresponding air outlet, thereby reducing wind resistance and airflow noise.

[0067] As mentioned above, the cylindrical air outlet switching cylinder 21 is advantageous for switching its state by rotation. Accordingly, the driving device is a rotary driving device, which can drive the air outlet switching cylinder 21 to rotate to switch between the first air supply state and the second air supply state. Driving the air outlet switching cylinder 21 to rotate by rotation is simple in structure and convenient in control.

[0068] In one specific embodiment, the rotary drive device includes a first rotary motor 221 and a drive gear 222. The drive gear 222 is connected to the rotating shaft of the first rotary motor 221. The outer peripheral wall of the air outlet switching cylinder 21 has a toothed ring 214. The toothed ring 214 is coaxial with the air outlet switching cylinder 21. The drive gear 222 meshes with the toothed ring 214. The aforementioned first rotary motor 221 can specifically be a rotary motor, which can be controlled to rotate forward or in reverse.

[0069] In this technical solution, the first rotary motor 221 drives the drive gear 222 to rotate, which in turn drives the air outlet switching cylinder 21 that meshes with it to rotate. The structure is simple and the control is convenient.

[0070] The rotary drive device is provided in two sets, which are respectively located on opposite sides of the air outlet switching cylinder 21. While realizing the rotary drive of the air outlet switching cylinder 21, the two sets of rotary drive devices can also form a radial centering limit on the air outlet switching cylinder 21, ensuring the smooth rotation of the air outlet switching cylinder 21.

[0071] As a preferred embodiment, a limiting gear 23 can also be rotatably connected to the air duct housing. The limiting gear 23 meshes with the gear ring 214, and the limiting gear 23 and the rotary drive device are evenly spaced around the gear ring 214. That is, in this invention, the radial limit of the air outlet switching cylinder 21 is achieved through each rotary drive device and the limiting gear 23, making the rotation operation of the air outlet switching cylinder 21 more stable and reliable.

[0072] See also Figure 4 and Figure 5As shown, in some embodiments, the toothed ring 214 has axial limiting protrusions 215 at both axial ends, and the drive gear 222 and the limiting gear 23 both mesh with the two axial limiting protrusions 215. Specifically, the aforementioned axial limiting protrusions 215 are arranged around the toothed ring 214, and can protrude from the end opening of the tooth valley between two adjacent tooth peaks, thereby reliably limiting the axial displacement of the air outlet switching cylinder 21 and preventing the air outlet switching cylinder 21 from axially moving. The minimum axial distance between the two axial limiting protrusions 215 can be the same as or slightly greater than the axial thickness of the drive gear 222.

[0073] In this technical solution, by setting axial limiting protrusions 215 at both ends of the toothed ring 214, the axial displacement of the air outlet switching cylinder 21 can be reliably limited. There is no need to set other axial limiting structures separately. The structure is simple and does not require separate assembly.

[0074] In one specific embodiment, the rotary drive device is assembled on the air duct housing. Specifically, a corresponding motor mounting base 1611 and a gear receiving box 1612 are formed on the outer side wall of the air duct volute 161. The aforementioned first rotary motor 221 is fixedly mounted on the aforementioned motor mounting base 1611, while each limiting gear 23 is set in the corresponding gear receiving box 1612 through a corresponding rotating shaft.

[0075] In some embodiments, the aforementioned airflow driving component may specifically include a centrifugal fan located within the hollow cylindrical space of the air outlet switching cylinder 21. The centrifugal fan includes a second rotary motor 31 and a fan wheel 32 drivenly connected to the shaft of the second rotary motor 31. The air inlet side of the fan wheel 32 is matched with the air inlet 15 (i.e., the two are correspondingly arranged). The second rotary motor 31 is also assembled on the duct housing, specifically, it is assembled on the inner side of the duct cover plate 162. In this technical solution, the fan wheel 32 and the second rotary motor 31 are located within the air outlet switching cylinder 21, making the overall structure of the entire duct more compact. At the same time, the cylindrical air outlet switching cylinder 21, while serving as the air outlet switching component, can also act as a volute, using its smooth profile to guide the airflow, reduce flow resistance and noise, and improve air outlet efficiency.

[0076] According to an embodiment of the present invention, a cabinet-type air conditioner is also provided, including an air duct component 201, wherein the air duct component 201 is the air duct assembly described above.

[0077] See details Figure 8As shown, the cabinet air conditioner includes an air conditioner casing composed of a front decorative panel 100, a middle frame decorative panel 101, and an air inlet panel 103. A base 204 is provided at the bottom. The air duct component 201 and the heat exchanger component 205 are assembled inside the air conditioner casing. A left air outlet 1011 and a right air outlet 1012 are respectively constructed on the left and right sides of the middle frame decorative panel 101. The left air outlet 1011 corresponds to the left air outlet 13, and the right air outlet 1012 corresponds to the right air outlet 14. Air guide plates can be installed at the left and right air outlets 1011 and 1012 to guide the airflow and seal the corresponding air outlets when no air is being supplied. An upper air outlet component 202 corresponding to the upper air outlet 11 is provided at the top of the air conditioner casing, and a lower air outlet component 203 corresponding to the lower air outlet 12 is provided at the bottom.

[0078] According to an embodiment of the present invention, a control method for a cabinet air conditioner is also provided, comprising the following steps:

[0079] Obtain control commands.

[0080] When the control command is to run the up and down air supply mode, the air outlet switching cylinder 21 is controlled to be in the first air supply state, that is, the first rotary motor 221 is controlled to rotate and drive the air outlet switching cylinder 21 to rotate to the first air supply state.

[0081] When the control command is to run the left and right air supply mode, the air outlet switching cylinder 21 is controlled to be in the second air supply state, that is, the first rotary motor 221 is controlled to rotate and drive the air outlet switching cylinder 21 to rotate to the first and second air supply states.

[0082] The air outlet switching tube 21 allows the air supply of the air conditioner using the present invention to switch between up-and-down air supply mode and left-and-right air supply mode. This enables the air duct component and the corresponding air conditioner in the present invention to improve the left-and-right air supply range and air supply distance of the air conditioner through the flexible selection of up-and-down air supply and left-and-right air supply, thereby achieving rapid reduction of room temperature and large-area air sweeping function.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A cabinet-type air conditioner, comprising an air duct component (201), characterized in that, The air duct component (201) includes: The air duct housing has an air inlet (15), an upper air outlet (11) and a lower air outlet (12) arranged opposite to each other, and a left air outlet (13) and a right air outlet (14) arranged opposite to each other. The upper air outlet (11), the lower air outlet (12), the left air outlet (13), and the right air outlet (14) are located around the air inlet (15). The air outlet switching assembly includes an air outlet switching cylinder (21) and a driving device. The cylinder wall of the air outlet switching cylinder (21) is constructed with a first air outlet (211) and a second air outlet (212) arranged opposite to each other. The air outlet switching cylinder (21) has a first air supply state and a second air supply state. When the air outlet switching cylinder (21) is in the first air supply state, the first air outlet (211) is connected to the upper air outlet (11), and the second air outlet (212) is connected to the lower air outlet (12). When the air outlet switching cylinder (21) is in the second air supply state, the first air outlet (211) is connected to one of the left air outlet (13) and the right air outlet (14), and the second air outlet (212) is connected to the other of the left air outlet (13) and the right air outlet (14). The driving device can drive the air outlet switching cylinder (21) to switch between the first air supply state and the second air supply state. The first end of the air outlet switching cylinder (21) has a guide ring (213) coaxially matched with the air inlet (15). The diameter of the guide ring (213) gradually expands along the flow direction of the airflow exiting the air inlet (15). The driving device is a rotary driving device. The rotary driving device can drive the air outlet switching cylinder (21) to rotate to realize its switching between the first air supply state and the second air supply state. The rotary driving device includes a first rotary motor (221) and a drive gear (222). The drive gear (222) is connected to... On the rotating shaft of the first rotary motor (221), the outer peripheral wall of the air outlet switching cylinder (21) has a toothed ring (214), the toothed ring (214) is coaxial with the air outlet switching cylinder (21), the driving gear (222) meshes with the toothed ring (214), and the axial ends of the toothed ring (214) are respectively provided with axial limiting protrusions (215). The rotary driving device is provided in two sets, and the two sets of rotary driving devices are respectively located on opposite sides of the air outlet switching cylinder (21).

2. The cabinet-type air conditioner according to claim 1, characterized in that, The cross-section of the air outlet switching cylinder (21) at any position is circular.

3. The cabinet-type air conditioner according to claim 2, characterized in that, The first air vent (211) and the second air vent (212) extend from the first end to the second end of the air vent switching cylinder (21) and pass through the second end. The width of the first air vent (211) and the second air vent (212) in the circumferential direction of the air vent switching cylinder (21) is not less than the corresponding width of the upper air outlet (11), lower air outlet (12), left air outlet (13) and right air outlet (14) that correspond to them.

4. The cabinet-type air conditioner according to claim 1, characterized in that, The rotary drive device is assembled on the air duct housing; and / or A limiting gear (23) can also be rotatably connected to the air duct housing. The limiting gear (23) meshes with the toothed ring (214), and the limiting gear (23) and the rotary drive device are evenly spaced around the toothed ring (214).

5. The cabinet-type air conditioner according to claim 1, wherein The air duct component also includes: The centrifugal fan is located in the hollow cylindrical space of the air outlet switching cylinder (21). The centrifugal fan includes a second rotary motor (31) and a fan wheel (32) driven and connected to the shaft of the second rotary motor (31). The air inlet side of the fan wheel (32) is matched with the air inlet (15). The second rotary motor (31) is assembled on the air duct housing.

6. A control method for controlling the cabinet-type air conditioner as set forth in claim 5, characterized by, Includes the following steps: Obtain control commands; When the control command is to run the up and down air supply mode, the air outlet switching cylinder (21) is controlled to be in the first air supply state; When the control command is to run the left and right air supply mode, the air outlet switching cylinder (21) is controlled to be in the second air supply state.

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