Air supply device and cabinet air conditioner

Abstract

The utility model provides a kind of air supply device and air conditioner cabinet, it is related to air conditioner technical field, to solve the problem that existing air conditioner cabinet cannot be under the premise of guaranteeing diversified air supply, realizes the large air volume air supply.The air supply device includes mixed flow fan, outer sleeve and inner sleeve, mixed flow fan has annular air outlet, outer sleeve is abutted to the outer boundary of annular air outlet, the inner wall of outer sleeve is provided with the annular separation edge that protrudes towards its center direction;Inner sleeve is movably arranged in the inside of outer sleeve along the axial direction, the inner cavity of inner sleeve forms inner passage, the end of inner sleeve away from annular air outlet forms end air outlet, inner sleeve and outer sleeve are used to form outer passage between;In first mode, outer passage and annular air outlet are communicated, and inner passage and annular air outlet are blocked;In second mode, inner passage and annular air outlet are communicated, and outer passage and annular air outlet are blocked.The utility model can realize large air volume air supply under the premise of guaranteeing diversified air supply.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and more specifically, to an air supply device and an air conditioner cabinet unit. Background Technology

[0002] Currently, air conditioning units typically use cross-flow fans for air delivery. These fans are placed vertically, and when activated, outside air is drawn in from the rear or rear-side of the unit, where it exchanges heat with the indoor heat exchanger. The air that has completed the heat exchange is then expelled from the front vents of the unit, resulting in a relatively monotonous air delivery method.

[0003] Furthermore, using cross-flow fans occupies a significant amount of internal space, reducing the utilization rate of the internal space. Additionally, cross-flow fans have a relatively small airflow volume. Therefore, achieving high-volume air delivery while ensuring diverse air supply options has become a pressing issue. Utility Model Content

[0004] The first objective of this utility model is to provide an air supply device to solve the technical problem that existing air conditioning cabinet units cannot achieve large air volume air supply while ensuring diversified air supply.

[0005] The air supply device provided by this utility model includes a mixed-flow fan, an outer sleeve, and an inner sleeve. The mixed-flow fan has an annular air outlet. The outer sleeve is supported on the outer boundary of the annular air outlet, and the inner wall of the outer sleeve is provided with an annular dividing ridge protruding towards its center. The inner sleeve is axially movable inside the outer sleeve, and the inner cavity of the inner sleeve forms an inner channel. The end of the inner sleeve away from the annular air outlet forms an end air outlet, and the inner sleeve and the outer sleeve are used to form an outer channel. The air supply device has a first mode in which the inner sleeve abuts against the inner boundary of the annular air outlet, and a second mode in which the inner sleeve abuts against the annular dividing ridge. In the first mode, the outer channel is connected to the annular air outlet and blocks the inner channel from the annular air outlet. In the second mode, the inner channel is connected to the annular air outlet and blocks the outer channel from the annular air outlet.

[0006] The application of the air supply device in a cabinet air conditioner will be explained as an example. During use, the outer sleeve and inner sleeve are placed vertically, with the annular air outlet facing upwards or downwards. Here, we take the example of the annular air outlet facing upwards. In this case, both the outer sleeve and the inner sleeve are located above the annular air outlet, and the end air supply outlet is located at the top of the inner sleeve.

[0007] When it is necessary for the air conditioner unit to deliver air within its height range, the air delivery device can be switched to the first mode, so that the inner sleeve abuts against the inner boundary of the annular air outlet. At this time, the outer channel formed between the inner sleeve and the outer sleeve is connected to the annular air outlet, while the inner channel is blocked from the annular air outlet by the inner sleeve. This allows the airflow blown out of the annular air outlet to enter the outer channel and be further discharged outward, thus achieving air delivery within the height range of the air conditioner unit.

[0008] When it is necessary for the air conditioner unit to deliver air outside its height range, the air supply device can be switched to the second mode, so that the inner sleeve abuts against the annular partition ridge. At this time, the inner channel formed in the inner sleeve is connected to the annular air outlet, while the outer channel formed between the inner sleeve and the outer sleeve is blocked as the inner sleeve abuts against the annular partition ridge. This allows the airflow blown out of the annular air outlet to enter the inner channel and further flow to the end air outlet located at the top, realizing top air supply. By delivering the airflow to a higher space, the cooling effect on the overall indoor space is improved.

[0009] Therefore, this air supply device, by switching the inner sleeve at different positions, can provide different air supply modes. This not only allows the air conditioning air to be blown horizontally within the height range of the air conditioner unit, but also allows it to be blown out beyond that height range, resulting in a wide air supply range. Furthermore, the mixed-flow fan, compared to the cross-flow fan used in traditional air conditioners, offers faster airflow and a longer air delivery distance, thus increasing air volume. This effectively solves the problem that existing air conditioner units cannot simultaneously handle diverse air supply and large air volume. In addition, using a mixed-flow fan instead of a cross-flow fan reduces the space occupied inside the unit casing, improving the utilization rate of the internal space.

[0010] Furthermore, the inner wall of the outer sleeve includes an angled guide wall and a flow-guiding wall, with the annular dividing ridge located between the guide wall and the flow-guiding wall. In the first mode, the outer channel is formed between the inner wall of the outer sleeve and the inner sleeve; in the second mode, the outer channel is formed between the flow-guiding wall and the inner sleeve. This configuration allows the outer channel to be a variable design. In the first mode, the outer channel is formed between the inner wall of the outer sleeve and the inner sleeve, allowing it to communicate with the annular air outlet. In the second mode, the outer channel is formed only between the flow-guiding wall of the outer sleeve and the inner sleeve, so that the annular dividing ridge blocks the flow from the outer channel to the annular air outlet, preventing airflow from exiting through the outer channel.

[0011] Furthermore, the inner sleeve includes a fixed sleeve and a movable sleeve, wherein the movable sleeve is movably disposed; the fixed sleeve is movably fitted with the movable sleeve, and the end of the fixed sleeve away from the movable sleeve forms the end air outlet; the fixed sleeve and the movable sleeve always have a circumferential overlap section at the fitting part. Through the above arrangement, during the switching process between the first mode and the second mode of the air supply device, the fixed sleeve remains stationary, while only the movable sleeve moves up and down to change its position, thereby fixing the position of the end air outlet located at the top and preventing it from moving during mode switching. This ensures the fixed position of the end air outlet, which is beneficial for the installation of the air supply device inside the housing.

[0012] Furthermore, the movable sleeve has an annular slot on its end face facing the fixed sleeve, and one end of the fixed sleeve facing the movable sleeve is inserted into the annular slot; or, the fixed sleeve has an annular slot on its end face facing the movable sleeve, and one end of the movable sleeve facing the fixed sleeve is inserted into the annular slot. This method of connecting the fixed sleeve and the movable sleeve using an annular slot can, on the one hand, provide relative movement between the fixed sleeve and the movable sleeve using the depth of the annular slot, and on the other hand, form a labyrinth seal structure at the connection point between the fixed sleeve and the movable sleeve to further reduce the risk of airflow leakage in the internal channel.

[0013] Furthermore, the movable sleeve includes a conical section and a straight section, wherein the straight section is located at the small-diameter end of the conical section, and the movable sleeve is inserted into the fixed sleeve through the straight section; the large-diameter end of the movable sleeve faces the annular air outlet. This arrangement makes the outer channel formed between the inner and outer sleeves a variable-diameter channel. Specifically, the flow area of ​​the outer channel increases after passing the annular dividing ridge, thereby reducing the flow velocity and kinetic energy loss of the airflow. Simultaneously, it also reduces the degree of turbulence in the airflow, improving flow stability.

[0014] Furthermore, the air supply device also includes a mounting groove, a protective cover, and a drive assembly. The mounting groove is fixedly disposed on the housing of the mixed-flow fan and surrounded by the annular air outlet, with the groove opening facing the outer sleeve. The protective cover is abutted against the mounting groove to form a mounting cavity, and the protective cover has a drive port. The drive assembly is disposed in the mounting cavity, and the drive end of the drive assembly passes through the drive port and connects to the movable sleeve. The drive assembly is used to drive the movable sleeve to move. The edge of the protective cover abuts against the inner boundary of the annular air outlet. In the first mode, the edge of the movable sleeve abuts against the protective cover. The above-mentioned drive assembly enables the movement of the movable sleeve, thereby realizing the automatic switching of the air supply device between the first mode and the second mode.

[0015] Furthermore, the drive assembly includes a rotary motor, a rotary gear, and a movable plate. The rotary motor drives the rotary gear to rotate. The movable plate is movably disposed in the mounting cavity along the moving direction of the movable sleeve. The movable plate has toothed portions extending along the moving direction of the movable sleeve, and the toothed portions mesh with the rotary gear. This configuration of the drive assembly not only ensures smooth transmission but also provides high movement accuracy for the movable plate.

[0016] Furthermore, the drive assembly also includes a first side plate and a second side plate, which are respectively disposed on both sides of the movable plate and fixed relative to the mounting groove. The movable plate has a clearance notch connecting the first side plate and the second side plate. The rotary motor is accommodated in the clearance notch and mounted on the first side plate. The second side plate has a clearance groove for avoiding the rotary motor and the rotary gear. This arrangement allows the rotary motor to be embedded in the clearance notch, effectively utilizing the thickness of the movable plate, thus facilitating a compact design of the drive assembly. Additionally, by providing a clearance groove on the second side plate for avoiding the rotary motor and the rotary gear, the second side plate only provides structural clearance at the location of the rotary motor and the rotary gear, which helps reduce the thickness of the second side plate at other locations.

[0017] Furthermore, a first roller is mounted on the surface of the first side plate facing the movable plate, and a second roller is mounted on the surface of the second side plate facing the movable plate. The first roller and the second roller are positioned correspondingly, and their rolling directions are both along the moving direction of the movable sleeve. The movable plate has a limiting groove extending along the moving direction of the movable sleeve, and the first roller and the second roller are respectively embedded in the limiting groove from both sides of the movable plate. This design converts the sliding friction between the movable plate and the first side plate, and between the movable plate and the second side plate, into rolling friction, reducing resistance and noise during the up-and-down movement of the movable plate. Furthermore, the cooperation of the first roller and the second roller with the limiting groove allows for horizontal limiting of the movable plate, further preventing wobbling during up-and-down movement. And / or, the mounting cavity has a guide groove extending along the moving direction of the movable sleeve, and the movable plate slides in cooperation with the guide groove. This design allows the guide groove to guide the movable plate during up-and-down movement, indirectly guiding the movable sleeve. This design ensures the stability of the slipcover during movement and prevents it from wobbling.

[0018] Furthermore, the drive assembly includes a linear drive element, which is mounted in the mounting slot, and the linear output end of the linear drive element forms the drive end of the drive assembly. This configuration of the drive assembly is simple in structure, reliable in drive, and occupies little space. And / or, one of the mounting slot and the protective cover is provided with a positioning post, and the other of the mounting slot and the protective cover is provided with a positioning groove, with the positioning post and the positioning groove engaging. This configuration enables positioning of the protective cover and the mounting slot during assembly, thereby improving assembly efficiency.

[0019] The second objective of this utility model is to provide an air conditioning unit that solves the technical problem that existing air conditioning units cannot achieve large-volume air delivery while ensuring diverse air delivery methods.

[0020] The air conditioner cabinet unit provided by this utility model includes a casing and the aforementioned air supply device. The air supply device is disposed inside the casing, with the annular air outlet facing upward. The outer sleeve and the inner sleeve are located above the annular air outlet. The casing has an air inlet and a side air outlet. The air inlet is connected to the air inlet side of the mixed flow fan, and the side air outlet is opposite to the inner sleeve.

[0021] When this air conditioner unit is in operation, the mixed-flow fan starts, drawing outside air into the interior of the casing through the air inlet, and then further flowing through the inlet side to the annular air outlet. By pointing the annular air outlet upwards and positioning the outer and inner sleeves above the annular air outlet, the end air outlet is located at the top of the inner sleeve. Therefore, in the second mode of the air supply device, the air conditioner air can be delivered from the top. When the user has a cooling need, this arrangement can blow cool air upwards, providing a wide air delivery range.

[0022] By installing the aforementioned air supply device in the air conditioning unit, the air conditioning unit accordingly possesses all the advantages of the aforementioned air supply device, which will not be elaborated upon here. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of the air conditioner cabinet unit provided in Embodiment 1 of this utility model;

[0025] Figure 2 This is an exploded view of the air conditioner cabinet unit provided in Embodiment 1 of this utility model;

[0026] Figure 3 This is a longitudinal sectional view of the air conditioner cabinet unit provided in Embodiment 1 of this utility model when the air supply device is in the first mode;

[0027] Figure 4 for Figure 3 Enlarged view of the local structure at point A;

[0028] Figure 5 This is a longitudinal sectional view of the air conditioner unit provided in Embodiment 1 of the present invention when the air supply device is in the second mode.

[0029] Figure 6 for Figure 5 Enlarged view of the local structure at point B;

[0030] Figure 7 A schematic diagram of the air supply principle of the air conditioner cabinet unit provided in Embodiment 1 of this utility model;

[0031] Figure 8 This is one of the exploded views of the structure of the air conditioner cabinet unit between the mixed flow fan and the movable sleeve provided in Embodiment 1 of this utility model;

[0032] Figure 9 This is the second exploded view of the structure of the air conditioner cabinet unit provided in Embodiment 1 of this utility model between the mixed flow fan and the movable sleeve;

[0033] Figure 10 This is one of the exploded views of the structure of the air conditioner cabinet unit between the mixed flow fan and the movable sleeve provided in Embodiment 2 of this utility model;

[0034] Figure 11 This is the second exploded view of the structure of the air conditioner cabinet unit provided in Embodiment 2 of this utility model, between the mixed flow fan and the movable sleeve.

[0035] Explanation of reference numerals in the attached figures:

[0036] 010-Air supply device; 020-Casing; 021-Air inlet; 022-Side air outlet; 030-Mixed flow fan; 031-Air inlet side; 032-Annular air outlet; 0321-Outer boundary; 0322-Inner boundary; 040-Air outlet grille; 050-Diffuser; 060-Decorative parts;

[0037] 100-Outer sleeve; 200-Inner sleeve; 300-Outer channel; 400-Annular blade; 400a-Lower annular blade; 400b-Upper annular blade; 500-Air supply interval; 600-Mounting slot; 700-Shield; 800-Drive assembly;

[0038] 110 - Annular dividing ridge; 120 - Guide wall; 130 - Drainage wall;

[0039] 210 - Inner channel; 220 - End air outlet; 230 - Fixed sleeve; 240 - Movable sleeve; 241 - Annular slot;

[0040] 410 - First air guide surface; 420 - Second air guide surface;

[0041] 610 - Guide groove; 620 - Positioning post;

[0042] 710 - Drive port; 720 - Positioning groove; 730 - First stop; 740 - Second stop; 750 - Arc-shaped air guide surface;

[0043] 810 - Rotary motor; 820 - Rotary gear; 830 - Movable plate; 831 - Toothed part; 832 - Relief notch; 833 - Limiting groove; 840 - First side plate; 841 - First roller; 842 - Wheel groove; 850 - Second side plate; 851 - Relief groove; 852 - Second roller; 860 - Linear drive component. Detailed Implementation

[0044] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0045] Example 1

[0046] Figure 1 This is a structural schematic diagram of the air conditioner cabinet unit provided in Embodiment 1; Figure 2 This is an exploded view of the air conditioner unit provided in Embodiment 1. Figure 1 and Figure 2 As shown, this embodiment provides an air conditioning unit, including a housing 020 and an air supply device 010. Specifically, the air supply device 010 is disposed inside the housing 020, and the annular air outlet 032 of the mixed flow fan 030 faces upward. The housing 020 has an air inlet 021 and a side air outlet 022, wherein the air inlet 021 is connected to the air inlet side 031 of the mixed flow fan 030, and the side air outlet 022 is opposite to the inner sleeve 200 of the air supply device 010.

[0047] When the air conditioner unit is in operation, the mixed-flow fan 030 starts, drawing outside air into the interior of the casing 020 through the air inlet 021, and then further flowing through the air inlet side 031 to the annular air outlet 032. By pointing the annular air outlet 032 upwards and positioning the outer sleeve 100 and inner sleeve 200 above the annular air outlet 032, the end air outlet 220 of the air supply device 010 is located at the top, allowing the air conditioning air to be delivered from the top under the action of the air supply device 010. When the user has a cooling need, the above arrangement can blow cold air upwards, providing a wide air delivery range.

[0048] In addition, this type of air conditioning unit that uses a mixed-flow fan 030 to provide airflow power not only has a faster wind speed and a longer air delivery distance compared to the cross-flow fan used in traditional unit units, but also reduces the space occupied inside the casing 020, thereby improving the utilization rate of the internal space of the casing 020.

[0049] It should be noted that the mixed-flow fan is equipped with a high-speed motor, and a conical diffuser is formed in the center of the air duct, with a guide ring on the outer ring, thus forming an annular accelerating air outlet. A ring of ribs is also provided at the air outlet of the mixed-flow fan to achieve a spiral high-speed air outlet.

[0050] It should also be noted that in other embodiments, the mixed-flow fan 030 can be positioned above the outer sleeve 100 and the inner sleeve 200, in which case the annular air outlet 032 faces downwards. This embodiment is merely an example of the mixed-flow fan 030 having its annular air outlet 032 facing upwards, and is not intended to limit the scope of this application.

[0051] Generally, one side of an air conditioner unit faces the room or the user's activity area; this side is the front of the unit. The side facing a corner or a wall is the rear. When a user is facing the air conditioner unit, the user's left side is the left side of the unit, and the user's right side is the right side. Specifically, in this embodiment, the front-back, up-down, and left-right directions of the air conditioner unit are as follows: Figure 2 The corresponding arrows are shown in the diagram.

[0052] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the air conditioner unit may further include a diffuser plate 050. The diffuser plate 050 is positioned at the side air outlet 022. Using the diffuser plate 050, the airflow delivered through the side air outlet 022 can be dispersed, achieving a zero-wind-feel function and preventing direct airflow from blowing directly on the user.

[0053] Please continue to refer to Figure 2 In this embodiment, the air conditioner unit may further include an air outlet grille 040. The air outlet grille 040 is disposed at the position of the side air outlet 022 and is located between the air diffuser 050 and the side air outlet 022, serving as a structural support at the side air outlet 022.

[0054] In this embodiment, the air diffuser 050 can be magnetically attached to the air outlet grille 040.

[0055] Please continue to refer to Figure 1 and Figure 2In this embodiment, the air conditioner cabinet unit may also include a decorative component 060, wherein the decorative component 060 is located between the upper and lower air diffuser plates 050 and is used to cover the mixed flow fan 030 inside the casing 020.

[0056] The following text will provide a detailed description of the specific structure and working principle of the air supply device 010.

[0057] Figure 3 This is a longitudinal sectional view of the air conditioner unit provided in this embodiment when the air supply device 010 is in the first mode. Figure 4 for Figure 3 Enlarged view of the local structure at point A; Figure 5 This is a longitudinal sectional view of the air conditioner unit provided in this embodiment when the air supply device 010 is in the second mode; Figure 6 for Figure 5 Enlarged view of the local structure at point B.

[0058] like Figures 3 to 6 As shown, the air supply device 010 provided in this embodiment includes a mixed-flow fan 030, an outer sleeve 100, and an inner sleeve 200. Specifically, the mixed-flow fan 030 has an annular air outlet 032, the outer sleeve 100 abuts against the outer boundary 0321 of the annular air outlet 032, and the inner wall of the outer sleeve 100 is provided with an annular dividing ridge 110 protruding towards its center. The inner sleeve 200 is axially movable inside the outer sleeve 100, the inner cavity of the inner sleeve 200 forms an inner channel 210, the end of the inner sleeve 200 away from the annular air outlet 032 forms an end air outlet 220, and the inner sleeve 200 and the outer sleeve 100 are used to form an outer channel 300.

[0059] Please continue to refer to Figure 4 The air supply device 010 has a first mode in which the inner sleeve 200 abuts against the inner boundary 0322 of the annular air outlet 032. In the first mode, the outer channel 300 is connected to the annular air outlet 032 and blocks the inner channel 210 from the annular air outlet 032. Please continue to refer to Figure 6 The air supply device 010 also has a second mode in which the inner sleeve 200 abuts against the annular dividing ridge 110. In the second mode, the inner channel 210 is connected to the annular air outlet 032 and blocks the outer channel 300 from the annular air outlet 032.

[0060] During use, the outer sleeve 100 and the inner sleeve 200 are placed vertically, with the annular air outlet 032 facing upwards or downwards. Here, taking the annular air outlet 032 facing upwards as an example, at this time, both the outer sleeve 100 and the inner sleeve 200 are located above the annular air outlet 032, and the end air outlet 220 is located at the top of the inner sleeve 200.

[0061] When it is necessary for the air conditioner unit to supply air within its height range, the air supply device 010 can be switched to the first mode, so that the inner sleeve 200 abuts against the inner boundary 0322 of the annular air outlet 032. At this time, the outer channel 300 formed between the inner sleeve 200 and the outer sleeve 100 is connected to the annular air outlet 032, while the inner channel 210 is blocked from the annular air outlet 032 by the inner sleeve 200. This allows the airflow blown out of the annular air outlet 032 to enter the outer channel 300 and be further discharged outward, thereby achieving air supply within the height range of the air conditioner unit.

[0062] When it is necessary for the air conditioner unit to deliver air outside its height range, the air supply device 010 can be switched to the second mode, so that the inner sleeve 200 abuts against the annular partition 110. At this time, the inner channel 210 formed in the inner sleeve 200 is connected to the annular air outlet 032, while the outer channel 300 formed between the inner sleeve 200 and the outer sleeve 100 is blocked as the inner sleeve 200 abuts against the annular partition 110. This allows the airflow blown out of the annular air outlet 032 to enter the inner channel 210 and further flow to the end air outlet 220 located at the top, realizing top air supply. By delivering the airflow to a higher space, the cooling effect on the overall indoor space is improved.

[0063] As can be seen, the air supply device 010 can switch between different positions of the inner sleeve 200 to produce different air supply modes. This not only allows the air conditioning air to be blown horizontally within the height range of the air conditioning unit, but also allows the air conditioning air to be blown out beyond the height range of the air conditioning unit, resulting in a wide air supply range. At the same time, the mixed flow fan 030, compared with the cross flow fan used in traditional air conditioning units, has a faster wind speed and a longer air supply distance, thus increasing the air volume. This effectively solves the problem that existing air conditioning units cannot simultaneously handle diverse air supply and large air volume.

[0064] Please continue to refer to Figure 4 and Figure 6 In this embodiment, the inner wall of the outer sleeve 100 includes a flow-guiding wall 130 and a flow-directing wall 120 arranged at an angle, and an annular dividing ridge 110 is located between the flow-guiding wall 130 and the flow-directing wall 120. In the first mode, the outer channel 300 is formed between the inner wall of the outer sleeve 100 and the inner sleeve 200; in the second mode, the outer channel 300 is formed between the flow-directing wall 120 and the inner sleeve 200.

[0065] This configuration allows the outer channel 300 to be a variable design. In the first mode, the outer channel 300 is formed between the entire inner wall of the outer sleeve 100 and the inner sleeve 200, so that the outer channel 300 can communicate with the annular air outlet 032. In the second mode, the outer channel 300 is only formed between the guide wall 120 of the outer sleeve 100 and the inner sleeve 200, so that the outer channel 300 and the annular air outlet 032 are blocked by the annular partition 110, so that the airflow cannot flow out from the outer channel 300.

[0066] In this embodiment, the flow-guiding wall 130 and the flow-directing wall 120 are arranged in a roughly V-shape. The flow-guiding wall 130 is used to guide the airflow blown out of the annular air outlet 032 into the interior of the outer sleeve 100, and the flow-directing wall 120 is used to guide the airflow of the outer channel 300 outward in a roughly radial direction along the outer sleeve 100. The annular dividing rib 110 is located in the approximate middle position of the outer sleeve 100, that is, the flow-guiding wall 130 and the flow-directing wall 120 are respectively located at both ends of the annular dividing rib 110.

[0067] Please continue to refer to Figure 4 and Figure 6 In this embodiment, the outer sleeve 100 has a partial arched wall towards its center to form an annular dividing ridge 110.

[0068] This form of forming the annular dividing rib 110 has two advantages: firstly, it makes the inner wall of the outer sleeve 100 a smooth surface, ensuring the smoothness of airflow when passing through the annular dividing rib 110; secondly, it eliminates the need for additional structures to form the annular dividing rib 110, reducing the number of parts and improving assembly efficiency.

[0069] Please continue to refer to Figure 4 and Figure 6 In this embodiment, the inner sleeve 200 may include a fixed sleeve 230 and a movable sleeve 240, wherein the movable sleeve 240 is movably disposed; the fixed sleeve 230 and the movable sleeve 240 are movably sleeved together, and the end of the fixed sleeve 230 away from the movable sleeve 240 forms an end air outlet 220; the fixed sleeve 230 and the movable sleeve 240 always have a circumferentially overlapping section at the sleeved part.

[0070] With the above settings, the fixed sleeve 230 remains stationary during the switching process between the first mode and the second mode of the air supply device 010, while only the movable sleeve 240 moves up and down to change its position. This ensures that the position of the end air outlet 220 located at the top is fixed and will not move during the mode switching process, thus guaranteeing the fixed position of the end air outlet 220. This facilitates the installation of the air supply device 010 inside the housing 020.

[0071] In addition, by ensuring that the fixed sleeve 230 and the movable sleeve 240 always have a circumferential overlap section at the joint, the inner sleeve 200 is kept closed on the side wall, thus preventing airflow leakage from the inner channel 210.

[0072] In this embodiment, the housing 020 is provided with a grille outlet at a position opposite to the end air outlet 220, which is used to discharge the airflow sent out through the end air outlet 220.

[0073] Please continue to refer to Figure 4 and Figure 6 In this embodiment, the end face of the movable sleeve 240 facing the fixed sleeve 230 is provided with an annular slot 241, and one end of the fixed sleeve 230 facing the movable sleeve 240 is inserted into the annular slot 241.

[0074] This method of connecting the fixed sleeve 230 and the movable sleeve 240 by inserting them into the annular slot 241 on their end faces has two advantages. First, the depth of the annular slot 241 can provide relative movement between the fixed sleeve 230 and the movable sleeve 240. Second, the insertion of the fixed sleeve 230 into the annular slot 241 can also form a labyrinth seal structure at the connection between the fixed sleeve 230 and the movable sleeve 240, thereby further reducing the risk of airflow leakage in the inner channel 210.

[0075] It is understood that in other embodiments, the annular slot 241 can also be disposed on the end face of the fixed sleeve 230 facing the movable sleeve 240, and the end of the movable sleeve 240 facing the fixed sleeve 230 can be inserted into the annular slot 241. This arrangement can also utilize the depth of the annular slot 241 to provide relative movement travel between the fixed sleeve 230 and the movable sleeve 240, and achieve a labyrinth seal at the connection between the fixed sleeve 230 and the movable sleeve 240.

[0076] Please continue to refer to Figure 4 In this embodiment, the movable sleeve 240 includes a conical section and a straight section. The straight section is located at the small diameter end of the conical section. The movable sleeve 240 is inserted into the fixed sleeve 230 through the straight section. The large diameter end of the movable sleeve 240 faces the annular air outlet 032.

[0077] This configuration makes the outer channel 300 formed between the inner sleeve 200 and the outer sleeve 100 a variable diameter channel. Specifically, the flow area of ​​the outer channel 300 increases after passing the annular dividing ridge 110, thereby reducing the flow velocity and reducing the kinetic energy loss of the airflow. At the same time, it can also reduce the degree of turbulence of the airflow and improve the flow stability.

[0078] Figure 7 This is a schematic diagram illustrating the air supply principle of the air conditioning unit provided in Embodiment 1. Please continue to refer to... Figure 3 and Figure 5 and combined Figure 7 In this embodiment, the air supply device 010 may further include a plurality of annular blades 400 spaced axially within the inner sleeve 200. Specifically, each annular blade 400 forms an air supply interval 500 with the inner sleeve 200. Each annular blade 400 includes a first guide surface 410 and a second guide surface 420, both facing the annular air outlet 032. Extending radially outward from the inner sleeve 200, the first guide surface 410 extends obliquely in a first direction, and the second guide surface 420 extends obliquely in a second direction. Both the first and second directions are parallel to the movement direction of the movable sleeve 240, with the first direction being the air outlet direction of the annular air outlet 032. Along the first direction, the first guide surface 410 is opposite to the guide wall 120. The movement direction of the movable sleeve 240 is also the axial direction of the inner sleeve 200.

[0079] In this embodiment, the first air guide surface 410 is located above the air guide wall 120 and is positioned near the front of the air conditioner unit; the second air guide surface 420 is positioned near the rear of the air conditioner unit.

[0080] In this embodiment, "first direction" and "second direction" can be referred to as Figure 7 As indicated by the corresponding arrow.

[0081] When the air supply device 010 is in the first mode, the airflow blown out of the annular air outlet 032 flows upward through the outer channel 300 between the inner sleeve 200 and the outer sleeve 100. By setting the first air guide surface 410 to extend outward along the radial direction of the inner sleeve 200 in the direction of airflow, and setting the second air guide surface 420 to extend outward along the radial direction of the inner sleeve 200 in the opposite direction to the direction of airflow, when the airflow flows upward along the axial direction of the inner sleeve 200, the first air guide surface 410 is in an upward posture, and the second air guide surface 420 is in an inverted posture.

[0082] The following explanation will focus on the airflow between the lower annular blade 400a and the upper annular blade 400b. When the airflow from the annular outlet 032 flows upward to the position of the lower annular blade 400a, on the one hand, the airflow will flow along the first guide surface 410 of the lower annular blade 400a towards the front of the air conditioning unit, achieving forward air delivery. (Refer to...) Figure 5 As indicated by the black arrow in the middle. On the other hand, under the action of the second air guide surface 420 of the lower annular blade 400a, the airflow is compressed. A portion of the airflow compressed by the second air guide surface 420 can flow upwards through the air supply interval 500 to the top of the lower annular blade 400a, and further, under the action of the first air guide surface 410 of the upper annular blade 400b, is guided to the lateral air outlet 022 at the front of the air conditioning unit and discharged. (Refer to...) Figure 5The blue arrow indicates that another portion of the airflow, compressed by the second guide surface 420, is blocked by the lower annular blade 400a and will not pass through the air supply interval 500. At this point, this portion of the airflow will flow forward along the lower surface of the lower annular blade 400a to the first guide surface 410 of the lower annular blade 400a, where it will be guided forward and delivered. (Refer to...) Figure 5 The green arrow in the middle.

[0083] During the above process, as the airflow flows upward along the inner sleeve 200, a small portion of the airflow will flow directly upward through the air supply gap 500 between the lower annular blade 400a and the inner sleeve 200, as shown in the reference. Figure 5 The red arrow indicates that when this airflow reaches above the lower annular blade 400a, it will be guided by the first air guide surface 410 of the upper annular blade 400b to the side air outlet 022 at the front of the air conditioning unit, thereby dividing the airflow into multiple segments along the inner sleeve 200 axially to ensure uniform airflow in the vertical direction.

[0084] Please continue to refer to Figure 4 and Figure 6 In this embodiment, the air supply device 010 may further include a mounting groove 600, a protective cover 700, and a drive assembly 800. Specifically, the mounting groove 600 is fixedly disposed on the housing of the mixed flow fan 030 and surrounded by the annular air outlet 032, and the groove opening of the mounting groove 600 faces the outer sleeve 100; the protective cover 700 is connected to the mounting groove 600 to form a mounting cavity, and the protective cover 700 has a drive port 710; the drive assembly 800 is disposed in the mounting cavity, and the drive end of the drive assembly 800 passes through the drive port 710 and is connected to the movable sleeve 240. The drive assembly 800 is used to drive the movable sleeve 240 to move; the edge of the protective cover 700 abuts against the inner boundary 0322 of the annular air outlet 032. In the first mode, the edge of the movable sleeve 240 abuts against the protective cover 700.

[0085] The aforementioned drive assembly 800 enables the movement of the movable sleeve 240, facilitating automatic switching of the air supply device 010 between the first and second modes. Furthermore, by placing the drive assembly 800 within the mounting cavity formed by the mating of the protective cover 700 and the mounting groove 600, and connecting the drive end of the drive assembly 800 to the movable sleeve 240 via the drive port 710, the relative enclosure of the space accommodating the drive assembly 800 is ensured, reducing contamination of the drive assembly 800 by impurities. Additionally, because the edge of the protective cover 700 abuts against the inner boundary 0322 of the annular air outlet 032, the airflow path formed between the annular air outlet 032 and the inner channel 210 is relatively smooth when the air supply device 010 switches to the second mode. Figure 6 This ensures smooth gas flow while also reducing noise.

[0086] Please continue to refer to Figure 6 In this embodiment, a first stop 730 is provided at the lower part of the edge of the protective cover 700, and the protective cover 700 abuts against the inner boundary 0322 of the annular air outlet 032 through the first stop 730; a second stop 740 is provided at the upper part of the edge of the protective cover 700, which is used when the air supply device 010 is in the first mode. Figure 4 The edge of the active sleeve 240 abuts against the second stop 740.

[0087] Please continue to refer to Figure 6 In this embodiment, the side of the protective cover 700 facing the inner channel 210 is an arc-shaped air guide surface 750.

[0088] Figure 8 This is one of the exploded views of the structure of the air conditioner cabinet unit provided in this embodiment between the mixed flow fan 030 and the movable sleeve 240; Figure 9 This is the second exploded view of the air conditioner unit provided in Embodiment 1, showing the structure between the mixed-flow fan 030 and the movable sleeve 240. Please continue to refer to... Figure 4 and Figure 6 and combined Figure 8 and Figure 9 In this embodiment, the drive assembly 800 includes a linear drive 860. Specifically, the linear drive 860 is mounted in the mounting slot 600, and the linear output end of the linear drive 860 forms the drive end of the drive assembly 800.

[0089] When the movable sleeve 240 needs to move upward, the linear drive 860 can generate an upward stroke to drive the movable sleeve 240 upward, thereby switching the air supply device 010 to the second mode; similarly, when the movable sleeve 240 needs to move downward, the linear drive 860 can generate a downward stroke to drive the movable sleeve 240 downward, thereby switching the air supply device 010 to the first mode.

[0090] The configuration of the driver component 800 is simple in structure, reliable in driving, and occupies little space.

[0091] Specifically, the linear drive 860 can be a linear motor or a hydraulic cylinder.

[0092] Please continue to refer to Figure 8 and Figure 9 In this embodiment, the mounting groove 600 is provided with a positioning post 620, and the protective cover 700 is provided with a positioning groove 720. The positioning post 620 and the positioning groove 720 are inserted and engaged.

[0093] This setup enables the positioning of the cover 700 and the mounting slot 600 during assembly, thereby improving assembly efficiency.

[0094] Example 2

[0095] This embodiment provides another type of air conditioner cabinet unit, which differs from the air conditioner cabinet unit provided in Embodiment 1 above in the following ways.

[0096] Figure 10 This is one of the exploded views of the structure of the air conditioning unit between the mixed flow fan 030 and the movable sleeve 240 provided in this embodiment 2; Figure 11 This is the second exploded view of the structure of the air conditioner cabinet unit provided in this embodiment, between the mixed-flow fan 030 and the movable sleeve 240. Figure 10 and Figure 11 As shown, in this air conditioner unit, the drive assembly 800 includes a rotary motor 810, a rotary gear 820, and a movable plate 830. Specifically, the housing of the rotary motor 810 is fixedly disposed relative to the mounting groove 600, and the rotary motor 810 is used to drive the rotary gear 820 to rotate. The movable plate 830 is disposed vertically in the mounting cavity, and the movable plate 830 is provided with a toothed portion 831 extending in the vertical direction, wherein the toothed portion 831 meshes with the rotary gear 820, and the movable plate 830 forms the drive end of the drive assembly 800.

[0097] When the air supply device 010 needs to switch between the first mode and the second mode, the rotary motor 810 can be started, which drives the rotary gear 820 to rotate. Since the housing of the rotary motor 810 is fixed relative to the mounting groove 600, and the toothed portion 831 of the movable plate 830 meshes with the rotary gear 820, the rotation of the rotary gear 820 is converted into the up-and-down movement of the toothed portion 831, thereby realizing the up-and-down movement of the movable plate 830, and thus the up-and-down movement of the movable sleeve 240.

[0098] This configuration of the drive assembly 800 not only ensures smooth transmission, but also provides high motion precision for the movable plate 830.

[0099] It should be noted that in this embodiment, the upward and downward movement of the movable plate 830 can be achieved by the forward and reverse rotation of the rotary motor 810.

[0100] Please continue to refer to Figure 10 and Figure 11 In this embodiment, the drive assembly 800 may further include a first side plate 840 and a second side plate 850. Specifically, the first side plate 840 and the second side plate 850 are respectively disposed on both sides of the movable plate 830 and are fixed relative to the mounting groove 600. The movable plate 830 has a clearance notch 832 that connects the first side plate 840 and the second side plate 850. The rotary motor 810 is accommodated in the clearance notch 832 and installed on the first side plate 840. The second side plate 850 is provided with a clearance groove 851 for avoiding the rotary motor 810 and the rotary gear 820.

[0101] With the above arrangement, the rotary motor 810 is embedded in the clearance notch 832, effectively utilizing the thickness dimension of the movable plate 830, which is beneficial for the compact design of the drive assembly 800. Furthermore, by providing a clearance groove 851 in the second side plate 850 to accommodate the rotary motor 810 and the rotary gear 820, the second side plate 850 only provides structural clearance at the location of the rotary motor 810 and the rotary gear 820, which helps to reduce the thickness of the second side plate 850 at other locations.

[0102] Please continue to refer to Figure 11 In this embodiment, the mounting cavity is provided with a guide groove 610 extending in the vertical direction, and the movable plate 830 slides in cooperation with the guide groove 610.

[0103] By providing a guide groove 610 in the mounting cavity for sliding engagement with the movable plate 830 in the vertical direction, the movable plate 830 can be guided during its vertical movement, thereby indirectly guiding the movable sleeve 240. This design ensures the stability of the movable sleeve 240 during movement and prevents it from shaking.

[0104] Specifically, the guide groove 610 is provided on the inner wall of the mounting groove 600.

[0105] Please continue to refer to Figure 11 In this embodiment, a first roller 841 is installed on the surface of the first side plate 840 facing the movable plate 830, and a second roller 852 is installed on the surface of the second side plate 850 facing the movable plate 830. The positions of the first roller 841 and the second roller 852 are corresponding, and their rolling directions are both along the moving direction of the movable sleeve 240. The movable plate 830 has a limiting groove 833 extending along the moving direction of the movable sleeve 240. The first roller 841 and the second roller 852 are respectively embedded in the limiting groove 833 from both sides of the movable plate 830.

[0106] When the movable plate 830 moves vertically, the first roller 841 and the second roller 852 will roll in the limiting groove 833 on both sides of the movable plate 830. This arrangement converts the sliding friction between the movable plate 830 and the first side plate 840, and between the movable plate 830 and the second side plate 850, into rolling friction, reducing resistance and noise during the vertical movement of the movable plate 830. Furthermore, the cooperation of the first roller 841 and the second roller 852 with the limiting groove 833 further limits the horizontal movement of the movable plate 830, preventing it from wobbling during vertical movement.

[0107] In this embodiment, both the first side plate 840 and the second side plate 850 have wheel grooves 842 on their surfaces facing the movable plate 830. The first roller 841 is engaged in the wheel groove 842 of the first side plate 840, and the second roller 852 is engaged in the wheel groove 842 of the second side plate 850.

[0108] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0109] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0110] In the above embodiments, descriptions of directions such as "up", "down", "front", "back", "left", "right", and "side" are all based on the accompanying drawings.

[0111] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air supply device, characterized in that, The system includes a mixed-flow fan (030), an outer sleeve (100), and an inner sleeve (200). The mixed-flow fan (030) has an annular outlet (032). The outer sleeve (100) abuts against the outer boundary (0321) of the annular outlet (032). The inner wall of the outer sleeve (100) is provided with an annular dividing ridge (110) protruding towards its center. The inner sleeve (200) is axially movable inside the outer sleeve (100). The inner cavity of the inner sleeve (200) forms an inner channel (210). The end of the inner sleeve (200) away from the annular outlet (032) forms an end air outlet (220). The air supply device has a first mode in which the inner sleeve (200) abuts against the inner boundary (0322) of the annular air outlet (032), and a second mode in which the inner sleeve (200) abuts against the annular dividing ridge (110), wherein, in the first mode, the outer channel (300) is connected to the annular air outlet (032) and blocks the inner channel (210) from the annular air outlet (032); in the second mode, the inner channel (210) is connected to the annular air outlet (032) and blocks the outer channel (300) from the annular air outlet (032).

2. The air supply device according to claim 1, characterized in that, The inner wall of the outer sleeve (100) includes an angled drainage wall (130) and a guide wall (120), and the annular dividing ridge (110) is located between the drainage wall (130) and the guide wall (120). In the first mode, the outer channel (300) is formed between the inner wall of the outer sleeve (100) and the inner sleeve (200); in the second mode, the outer channel (300) is formed between the guide wall (120) and the inner sleeve (200).

3. The air supply device according to claim 1, characterized in that, The inner sleeve (200) includes a fixed sleeve (230) and a movable sleeve (240), wherein the movable sleeve (240) is movably disposed; the fixed sleeve (230) is movably sleeved with the movable sleeve (240), and the end of the fixed sleeve (230) away from the movable sleeve (240) forms the end air outlet (220); the fixed sleeve (230) and the movable sleeve (240) always have a circumferential overlap section at the sleeved part.

4. The air supply device according to claim 3, characterized in that, The movable sleeve (240) has an annular slot (241) on its end face facing the fixed sleeve (230), and one end of the fixed sleeve (230) facing the movable sleeve (240) is inserted into the annular slot (241); or, the fixed sleeve (230) has an annular slot (241) on its end face facing the movable sleeve (240), and one end of the movable sleeve (240) facing the fixed sleeve (230) is inserted into the annular slot (241).

5. The air supply device according to claim 3, characterized in that, The movable sleeve (240) includes a conical section and a straight section, wherein the straight section is located at the small diameter end of the conical section, and the movable sleeve (240) is inserted into the fixed sleeve (230) through the straight section; the large diameter end of the movable sleeve (240) faces the annular air outlet (032).

6. The air supply device according to any one of claims 3-5, characterized in that, The air supply device further includes a mounting groove (600), a protective cover (700), and a drive assembly (800). The mounting groove (600) is fixedly disposed on the casing of the mixed-flow fan (030) and surrounded by the annular air outlet (032), with the groove opening facing the outer sleeve (100). The protective cover (700) is connected to the mounting groove (600) to form a mounting cavity, and the protective cover (700) has a drive port (710). The drive assembly (800) is disposed in the mounting cavity. The drive end of the drive assembly (800) passes through the drive port (710) and is connected to the movable sleeve (240). The drive assembly (800) is used to drive the movable sleeve (240) to move. The edge of the protective cover (700) abuts against the inner boundary (0322) of the annular air outlet (032). In the first mode, the edge of the movable sleeve (240) abuts against the protective cover (700).

7. The air supply device according to claim 6, characterized in that, The drive assembly (800) includes a rotary motor (810), a rotary gear (820), and a movable plate (830). The rotary motor (810) is used to drive the rotary gear (820) to rotate. The movable plate (830) is movably disposed in the mounting cavity along the moving direction of the movable sleeve (240). The movable plate (830) is provided with a toothed portion (831) extending along the moving direction of the movable sleeve (240), and the toothed portion (831) meshes with the rotary gear (820).

8. The air supply device according to claim 7, characterized in that, The drive assembly (800) further includes a first side plate (840) and a second side plate (850), the first side plate (840) and the second side plate (850) being respectively disposed on both sides of the movable plate (830) and both being fixed relative to the mounting groove (600); the movable plate (830) has a clearance notch (832) connecting the first side plate (840) and the second side plate (850), the rotary motor (810) being accommodated in the clearance notch (832) and mounted on the first side plate (840), and the second side plate (850) having a clearance groove (851) for avoiding the rotary motor (810) and the rotary gear (820).

9. The air supply device according to claim 8, characterized in that, A first roller (841) is mounted on the surface of the first side plate (840) facing the movable plate (830), and a second roller (852) is mounted on the surface of the second side plate (850) facing the movable plate (830). The first roller (841) and the second roller (852) are positioned correspondingly and their rolling directions are both along the moving direction of the movable sleeve (240). The movable plate (830) has a limiting groove (833) extending along the moving direction of the movable sleeve (240). The first roller (841) and the second roller (852) are respectively embedded in the limiting groove (833) from both sides of the movable plate (830). And / or, the mounting cavity is provided with a guide groove (610) extending along the moving direction of the movable sleeve (240), and the movable plate (830) slides in cooperation with the guide groove (610).

10. A cabinet air conditioner, characterized in that, The device includes a housing (020) and an air supply device as described in any one of claims 1-9. The air supply device is disposed inside the housing (020), with the annular air outlet (032) facing upward. The outer sleeve (100) and the inner sleeve (200) are located above the annular air outlet (032). The housing (020) has an air inlet (021) and a side air outlet (022). The air inlet (021) is connected to the air inlet side (031) of the mixed-flow fan (030), and the side air outlet (022) is opposite to the inner sleeve (200).

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