Ducted fan

Abstract

The application relates to the technical field of air conditioners, and discloses a ducted air conditioner. The ducted air conditioner provided by the application comprises a shell and a volute assembly. The shell comprises a side air outlet and a lower air outlet, and a connecting plate is fixed in the shell; the volute assembly comprises a volute and a sealing partition plate fixedly connected, the sealing partition plate is rotationally connected with the connecting plate, a sealing strip is arranged on the side wall of the sealing partition plate, a convex rib is arranged on the side wall of the connecting plate, and the sealing strip cooperates with the convex rib to close the gap between the sealing partition plate and the connecting plate in a side air outlet state of the ducted air conditioner. The application can leave a movement space for the rotation of the sealing partition plate between the sealing partition plate and the connecting plate during the rotation of the volute; in an air outlet mode of the ducted air conditioner, the movement space is blocked through the cooperation of the sealing strip and the convex rib, so that the problem of air leakage is avoided.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, for example to a ducted air conditioner. Background Technology

[0002] With the improvement of living standards, air conditioners have become an indispensable household appliance for improving the quality of life and are widely used. Air conditioner indoor units installed on the upper wall or ceiling of a room often have side-discharge airflow. When heating, the density of hot air is low, and the side-discharge airflow causes the hot air to rise, failing to reach users in the lower part of the room. This results in uneven temperature distribution within the room, causing the upper part to be hot and the lower part cold, which is particularly unpleasant for users who are prone to cold hands and feet.

[0003] In related technologies, to enable the switching of airflow direction in an air conditioning indoor unit, an air conditioning indoor unit and an air conditioner are disclosed. The air conditioning indoor unit includes a housing and a rotating air duct assembly. The housing has a first air outlet and a second air outlet; the rotating air duct assembly is disposed within the housing and is rotatable relative to the housing to allow the air conditioning indoor unit to switch between a first air outlet mode and a second air outlet mode. When the air conditioning indoor unit is in the first air outlet mode, air from outside the housing enters through the first air outlet and exits through the second air outlet after flowing through the rotating air duct assembly. When the air conditioning indoor unit is in the second air outlet mode, air from outside the housing enters through the second air outlet and exits through the first air outlet after flowing through the rotating air duct assembly. The housing includes a fixed housing portion and a movable housing portion. The movable housing portion can move away from the fixed housing portion, and the movement stroke allows the rotating air duct assembly to rotate freely within the housing. The rotating air duct assembly includes a centrifugal impeller assembly or an axial flow impeller assembly.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] During the rotation of the centrifugal fan assembly, a certain gap needs to be reserved to avoid interference between the centrifugal fan assembly and adjacent components, which could cause malfunctions in the indoor unit of the air conditioner. However, during the air outlet process of the indoor unit, airflow can easily enter the gap, causing air leakage, which in turn leads to low air volume, high noise, and affects the user experience. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a ducted air conditioner, which includes a housing and a volute assembly. The housing includes a side air outlet and a bottom air outlet, and a connecting plate is fixed inside the housing. The volute assembly includes a fixedly connected volute and a sealing partition, which is rotatably connected to the connecting plate. A sealing strip is provided on the side wall of the sealing partition, and a rib is provided on the side wall of the connecting plate. In the side air outlet mode of the ducted air conditioner, the sealing strip and the rib cooperate to seal the gap between the sealing partition and the connecting plate. This application can provide movement space for the rotation of the sealing partition between the sealing partition and the connecting plate during the rotation of the volute; in the air outlet mode of the ducted air conditioner, the movement space is sealed by the cooperation of the sealing strip and the rib, thereby avoiding the problem of air leakage.

[0008] In some embodiments, the ducted air conditioner includes a housing and a volute assembly. The housing includes a side air outlet and a bottom air outlet, and a connecting plate is fixed inside the housing; the volute assembly includes a volute and a sealing partition that are fixedly connected, the sealing partition is rotatably connected to the connecting plate, a sealing strip is provided on the left side wall of the sealing partition, and a rib is provided on the right side wall of the connecting plate. When the ducted air conditioner is in the side air outlet state, a gap is left between the sealing strip and the rib.

[0009] In some alternative embodiments, the sealing partition rotates to drive the volute to rotate, so that the duct air conditioner switches between a first air outlet mode and a second air outlet mode. The first air outlet mode is through the side air outlet, and the second air outlet mode is through the down air outlet. The connecting plate is also provided with a boss, and the sealing strip cooperates with the boss to seal the gap between the sealing partition and the connecting plate during the switching of the air outlet mode of the duct air conditioner.

[0010] In some alternative embodiments, a first movable space is included between the rib and the left side wall of the sealing partition, and a second movable space is included between the boss and the sealing strip. The first and second movable spaces provide movable space for the sealing partition to rotate.

[0011] In some alternative embodiments, the first active space width and / or the second active space width a ranges from [3mm, 4mm].

[0012] In some alternative embodiments, the height of the rib is higher than the height of the boss, so that the rib and the boss enclose a recess, which is used to abut the sealing strip.

[0013] In some alternative embodiments, d1 = d3 - d2, d1 > a; or, d3 + d1 > d > d3; where d is the width between the sealing partition and the connecting plate, d1 is the height of the sealing strip, d4 is the width of the space for the sealing partition to rotate relative to the connecting plate, d2 is the height of the boss, and d3 is the height of the rib.

[0014] In some alternative embodiments, the sealing strip includes a first side edge and a second side edge. The first side edge is used to abut against the protruding rib to close the gap between the sealing partition and the connecting plate; the second side edge is adjacent to the first side edge, and a second movable space is enclosed between the second side edge and the protrusion.

[0015] In some alternative embodiments, the sealing partition includes a first partition and a second partition. The first partition has a clearance opening, and the air outlet of the volute is engaged with the clearance opening; the second partition is vertically fixedly connected to the first partition, and the second partition has a sealing strip.

[0016] In some alternative embodiments, the duct unit further includes a baffle, which includes a pivot shaft and is pivotally connected to a first partition via the pivot shaft. The pivot shaft rotates axially to drive the baffle to rotate. The baffle is used to isolate the inlet airflow and outlet airflow of the volute.

[0017] In some alternative embodiments, the boss includes a blocking surface, which is an arc-shaped surface with the same curvature as the baffle. In the first air outlet mode, the side edge of the baffle overlaps the blocking surface to close the gap between the connecting plate and the baffle.

[0018] The duct air handling unit provided in this disclosure can achieve the following technical effects:

[0019] The ducted air conditioner includes a housing and a volute assembly. The housing includes a side air outlet and a bottom air outlet, and a connecting plate is fixed inside the housing. The volute assembly includes a fixedly connected volute and a sealing partition. The sealing partition is rotatably connected to the connecting plate. A sealing strip is provided on the side wall of the sealing partition, and a rib is provided on the side wall of the connecting plate. In the side air outlet mode of the ducted air conditioner, the sealing strip and the rib cooperate to seal the gap between the sealing partition and the connecting plate. This application allows for movement space for the sealing partition to rotate on the connecting plate side during the rotation of the volute. In the air outlet mode of the ducted air conditioner, the cooperation of the sealing strip and the rib seals the movement space, thereby preventing air leakage.

[0020] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0022] Figure 1 This is a partial structural schematic diagram of the duct air conditioner provided in an embodiment of this disclosure;

[0023] Figure 2 This is another partial structural schematic diagram of the duct machine provided in this embodiment of the disclosure;

[0024] Figure 3 This is another partial structural schematic diagram of the duct machine provided in this embodiment of the disclosure;

[0025] Figure 4 This is a partial structural schematic diagram of the connecting plate, sealing partition, and baffle provided in the embodiments of this disclosure;

[0026] Figure 5 This is a schematic diagram of the overall structure of the connecting plate provided in the embodiments of this disclosure;

[0027] Figure 6 This is a partial structural schematic diagram of the sealing partition and baffle provided in the embodiments of this disclosure;

[0028] Figure 7 This is a partial structural diagram of the sealing partition and connecting plate provided in the embodiments of this disclosure.

[0029] Figure label:

[0030] 1: Housing; 11: Side air vent; 12: Downward air vent; 2: Sealing partition; 21: First partition; 22: Second partition; 221: Sealing strip; 2211: First side edge; 2212: Second side edge; 3: Connecting plate; 31: Boss; 32: Rib; 4: Baffle; 41: Pivot shaft; 5: Volute; 6: Driving gear; 7: Driven gear; 8: Rotating shaft; 9: Drive unit. Detailed Implementation

[0031] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0032] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0033] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0034] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0035] Unless otherwise stated, the term "multiple" means two or more.

[0036] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0037] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0039] Combination Figure 1-7 As shown in the figure, this disclosure provides a duct air conditioner.

[0040] Traditional ducted air conditioners can achieve two air outlet modes by adding a rotating duct assembly: one mode allows air to enter through the lower air inlet 12 and exit through the side air inlet 11; the other mode allows air to enter through the side air inlet 11 and exit through the lower air inlet 12. The housing 1 includes a fixed housing and a movable housing. The movable housing can move away from the fixed housing, and its movement allows the rotating duct assembly to rotate freely within the housing 1. The rotating duct assembly includes a centrifugal impeller assembly. Although existing ducted air conditioners can switch air outlets, the centrifugal impeller assembly requires a certain amount of space to rotate, which prevents the airflow from being separated between the inlet and outlet of the volute 5, causing air leakage in the duct.

[0041] The ducted air conditioner provided in this embodiment includes a housing 1 and a volute 5 assembly. The housing 1 includes a side air outlet 11 and a bottom air outlet 12, and a connecting plate 3 is fixed inside the housing 1. The volute 5 assembly includes a fixedly connected volute 5 and a sealing partition 2. The sealing partition 2 is rotatably connected to the connecting plate 3. A sealing strip 221 is provided on the side wall of the sealing partition 2, and a rib 32 is provided on the side wall of the connecting plate 3. When the ducted air conditioner is in the side air outlet state, the sealing strip 221 and the rib 32 cooperate to seal the gap between the sealing partition 2 and the connecting plate 3.

[0042] The sealing partition 2 and connecting plate 3 inside the duct unit are rotatably connected, with the connecting plate 3 fixed inside the housing 1, allowing the sealing partition 2 to rotate within the housing 1. The volute 5 is fixed to the sealing partition 2, and rotation of the sealing partition 2 drives the volute 5 to rotate. Rotation of the volute 5 changes the airflow direction of its outlet, thus achieving reversible airflow from different outlets. When the sealing partition 2 and volute 5 rotate between different airflow modes, the sealing strip 221 and the rib 32 have no mating relationship, creating a movement space between the sealing partition 2 and the connecting plate 3 to avoid movement interference. When switching to a specific airflow mode, the sealing strip 221 overlaps the rib 32, sealing the gap used to create the movement space and preventing air leakage in the duct.

[0043] Optionally, the sealing partition 2 rotates to drive the volute 5 to rotate, so that the duct air conditioner switches between the first air outlet mode and the second air outlet mode. In the first air outlet mode, air is discharged from the side air outlet 11, and in the second air outlet mode, air is discharged from the down air outlet 12. The connecting plate 3 is also provided with a boss 31, and a gap is left between the sealing strip 221 and the boss 31.

[0044] Ducted air conditioners installed on the upper wall or ceiling of a room typically have side-discharge airflow. When heating, the low density of hot air causes it to rise, failing to reach users in the lower part of the room. This results in uneven temperature distribution, creating a problem of warmer upper areas and colder lower areas, particularly affecting users prone to cold hands and feet, leading to a poor user experience. By incorporating a rotatable casing 5 within the ducted air conditioner, different airflow modes can be achieved to meet the needs of different environments and specific users. Specifically, when the indoor temperature is too high, in cooling mode, corresponding to the first airflow mode, the casing 5 rotates so that its outlet aligns with the side air outlet 11 of the casing 1. Air enters through the lower air outlet 12 and exits through the side air outlet 11. With the ducted air conditioner discharging air laterally, the cool air descends from top to bottom during cooling, resulting in more even cooling and air distribution. When the indoor temperature is too low, the heating mode is activated, corresponding to the second air outlet mode. The volute 5 rotates so that its air outlet aligns with the lower air outlet 12 of the casing 1. Air is drawn in through the side air outlet 11 of the duct unit and exited through the lower air outlet 12. The duct unit's air outlet direction is downward. Since hot air is lighter, it tends to float at the top of the room. By using a downward air outlet, hot air can be delivered to the area where people live, improving the comfort of the space where the user is located.

[0045] For bidirectional air supply duct units, there is an issue of balancing noise and airflow. To prevent air leakage, the inlet and outlet ducts are separated, requiring a sealed space. However, during vent switching, interference and friction occur between components, affecting their lifespan and causing noise. The gap between the sealing strip 221 and the boss 31 provides space for the rotation of the sealing partition 2, preventing interference.

[0046] Optionally, a first movable space is provided between the rib 32 and the left side wall of the sealing partition 2, and a second movable space is provided between the boss 31 and the sealing strip 221. The first and second movable spaces provide space for the sealing partition 2 to rotate. When the ducted air conditioner is in the air outlet state, the rib 32 overlaps with the sealing strip 221, which can block the first movable space and prevent airflow turbulence. During the switching process of the ducted air conditioner, the boss 31 and the sealing partition 2 have a reserved second movable space, thereby avoiding the problem of motion interference between the sealing partition 2 and the connecting plate 3 during the rotation. In this way, through the cooperation of the rib 32, the boss 31 and the sealing strip 221, the air conditioner can achieve isolation between the air inlet and outlet ducts in the air outlet state, and can also avoid motion interference during the switching of the air outlet of the ducted air conditioner.

[0047] Optionally, the height of the rib 32 is higher than the height of the boss 31, so that the rib 32 and the boss 31 enclose a recess, which is used to abut the sealing strip 221. The heights of both the rib 32 and the boss 31 are the heights of the connecting plate 3 towards the sealing partition 2. The rib 32 is connected to the boss 31, and the recess between the rib 32 and the boss 31 allows the sealing strip 221 to abut against the recess, which on the one hand can block the first active space; on the other hand, when the sealing strip 221 abuts against the recess, it is in the first air outlet mode to avoid excessive rotation of the volute 5.

[0048] Optionally, d1 = d3 - d2, d1 > a; or d3 + d1 > d > d3; where d is the width between the sealing partition 2 and the connecting plate 3, d1 is the height of the sealing strip 221, d4 is the width of the movable space for the sealing partition 2 to rotate relative to the connecting plate 3, d2 is the height of the boss 31, and d3 is the height of the rib 32. This ensures that, while preventing motion interference during the rotation of the sealing partition 2, it also ensures that when the duct unit is discharging air, the first movable space is blocked, isolating the inlet and outlet airflows and preventing airflow turbulence.

[0049] Optionally, the sealing strip 221 includes a first side edge 2211 and a second side edge 2212. The first side edge 2211 is used to abut against the protruding rib 32 to close the gap between the sealing partition 2 and the connecting plate 3; the second side edge 2212 is adjacent to the first side edge 2211, and a second movable space is enclosed between the second side edge 2212 and the boss 31. The first side edge 2211 and the second side edge 2212 are two mutually perpendicular sides. The first side edge 2211 is used to block the first movable space, and the gap between the second side edge 2212 and the boss 31 is used to provide rotation space for the sealing partition 2, avoiding friction between the sealing partition 2 and the connecting plate 3, which would affect the service life of the component.

[0050] Optionally, the sealing partition 2 includes a first partition 21 and a second partition 22. The first partition 21 has an opening for clearance, and the air outlet of the volute 5 is snapped onto the opening for clearance; the second partition 22 is vertically fixedly connected to the first partition 21, and the second partition 22 is provided with a sealing strip 221.

[0051] Specifically, there are two second partitions 22, located on both sides of the air inlet of the volute 5, with a first partition 21 positioned between the two second partitions 22. This ensures a more reliable connection and more accurate positioning between the first partition 21 and the second partition 22. The sealing partition 2 not only provides load-bearing and support for the multiple volutes 5, preventing deformation of the duct unit housing 1, but also drives the volutes 5 to rotate, allowing the duct unit to switch air outlets without the need for additional duct switching components. Understandably, there are also two connecting plates 3, located on both sides of the two second partitions 22. The connecting plates 3 on the same side are rotatably connected to the second partitions 22, thus avoiding turbulent airflow on both sides of the volute 5.

[0052] Optionally, the width of the first active space and / or the width 'a' of the second active space are within the range of [3mm, 4mm]. The first partition 21 of the sealing partition 2 is made of aluminum alloy, the second partition 22 is made of ABS plastic, and the baffle 4 is made of ABS plastic. When the ducted air conditioner is operating in cooling and heating modes, different materials have different coefficients of thermal expansion and contraction, resulting in different widths of the first and second active spaces under different operating conditions. By controlling the width of the first and / or second active spaces between 3mm and 4mm, it is possible to ensure that the first active space is blocked when the air is being ventilated, while also ensuring the width of the second active space during air vent switching, thus preventing movement interference.

[0053] Optionally, the ducted air conditioner also includes a baffle 4, which includes a pivot shaft 41. The baffle 4 is pivotally connected to the first partition 21 via the pivot shaft 41. The pivot shaft 41 rotates axially to drive the baffle 4 to rotate. The baffle 4 is used to isolate the inlet and outlet airflows of the volute 5. The baffle 4 is rotatable relative to the sealing partition 2, so that the ducted air conditioner can separate the inlet and outlet airflows in both the first and second outlet modes. By rotating the baffle 4, the ducted air conditioner forms a complete airflow curve. The inlet and outlet airflows do not affect each other, avoiding airflow loss and turbulence caused by airflow interference. This helps to reduce noise within the ducted air conditioner and improve its air delivery performance.

[0054] Optionally, the boss 31 includes a blocking surface, which is an arc-shaped surface with the same curvature as the baffle 4. In the first air outlet mode, the side edge of the baffle 4 overlaps with the blocking surface to close the gap between the connecting plate 3 and the baffle 4. In this way, the area below the volute 5 can be separated to separate the inlet airflow and the outlet airflow.

[0055] While ducted air conditioners in related technologies can achieve reversible airflow, their high noise levels and low air volume prevent mass production and market entry. Reversible ducted air conditioners require a rotating duct assembly. This rotating assembly necessitates a certain amount of space, making it impossible to completely isolate the inlet and outlet airflows, thus affecting the outlet airflow. The cooperation of the ribs 32, bosses 31, and sealing strips 221 between the sealing partition 2 and the connecting plate 3 avoids sealing problems on both sides of the volute 5, preventing turbulent airflow on both sides. The cooperation of the arc-shaped surface of the baffle 4 with the blocking surface on the connecting plate 3 avoids sealing problems at the bottom of the volute 5, thus completely separating the inlet and outlet air ducts, preventing airflow turbulence, ensuring outlet airflow, and keeping noise within a reasonable range.

[0056] Optionally, the duct unit also includes a fan assembly and an adjustment assembly. The fan assembly includes a rotating shaft 8 and a fan. The rotating shaft 8 is fixedly mounted through the fan and is rotatably disposed within the housing 1. Rotation of the rotating shaft 8 drives the fan to rotate around a first rotation center. The volute 5 is fixedly connected to the sealing partition 2. The sealing partition 2 is rotatably connected to the connecting plate 3 and can move along a first direction. Rotation of the sealing partition 2 drives the volute 5 to rotate around a second rotation center. An adjustment mechanism is disposed on the connecting plate 3. During the rotation of the sealing partition 2, the adjustment mechanism can drive the sealing partition 2 to generate displacement relative to the connecting plate 3 in the first direction to adjust the distance between the second rotation center and the first rotation center. The first direction is the direction away from the interference between the volute 5 and the housing 1.

[0057] Specifically, the rotating shaft 8 drives the impeller to rotate around the first rotation center, which is the axis where the shaft of the rotating shaft 8 is located, and the position of the first rotation center is fixed. In standby mode, the second rotation center coincides with the first rotation center; that is, the rotation center point of the impeller is the rotation center point of the volute 5. The ducted air conditioner needs to switch between different air outlet modes. During the switching process, the position of the second rotation center continuously changes to adapt to the needs of small-sized ducted air conditioners. Understandably, as rotation begins, the outer contour of the top of the volute 5 gradually decreases, while the top space increases. Therefore, a variable rotation center scheme is adopted, with the volute 5 rotating and moving upwards simultaneously, thus fully utilizing the internal space of the unit and ensuring the fan size and air delivery performance of the unit. Understandably, the ducted air conditioner can also move upwards first and then rotate. When it is necessary to set the volute 5 to rotate while moving upward, an adjustable gear system can be used as the adjustment mechanism; when it is necessary to set the volute 5 to move upward first and then rotate, a gear set and push rod can be used to achieve this. There are no specific limitations on the adjustment mechanism, as long as it can adjust the distance between the first rotation center and the second rotation center.

[0058] Optionally, the duct unit also includes a power assembly. The power assembly includes a drive unit 9, a drive gear 6, and a driven gear 7. The drive unit 9 is fixed to the connecting plate 3 and includes a drive output end; the drive gear 6 is disposed on the drive output end; the driven gear 7 meshes with the drive gear 6 and passes through the connecting plate 3, being fixedly connected to the sealing partition 2. Specifically, the drive unit 9 drives the drive gear 6 to rotate, which in turn drives the driven gear 7 to rotate, causing the driven gear 7 to rotate relative to the connecting plate 3. Specifically, connecting plates 3 are fixed to both sides of the duct unit housing 1, and the sealing partition 2 is rotatably disposed between the two connecting plates 3. The driven gear 7 and the sealing partition 2 are located on opposite sides of one of the connecting plates 3 and are fixedly connected. The drive unit 9 drives the drive gear 6 to rotate, which in turn drives the driven gear 7 to rotate, causing the sealing partition 2 to rotate relative to the connecting plate 3.

[0059] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A ducted air conditioner, characterized in that, include: The housing includes a side air vent and a downwind air vent, and a connecting plate is fixed inside the housing; The volute assembly includes a fixedly connected volute and a sealing partition. The sealing partition is rotatably connected to the connecting plate. A sealing strip is provided on the side wall of the sealing partition, and a rib is provided on the side wall of the connecting plate. When the duct unit is in the side air outlet state, the sealing strip and the rib cooperate to seal the gap between the sealing partition and the connecting plate. The connecting plate is also provided with a boss. There is a first movable space between the rib and the left side wall of the sealing partition, and a second movable space between the boss and the sealing strip. The first and second movable spaces provide movable space for the sealing partition to rotate. The height of the rib is higher than the height of the boss, so that the rib and the boss enclose a recess, which is used to abut the sealing strip.

2. The duct air conditioner according to claim 1, characterized in that, The sealing partition rotates to drive the volute to rotate, so that the duct air conditioner switches between a first air outlet mode and a second air outlet mode. In the first air outlet mode, air is discharged from the side air outlet, and in the second air outlet mode, air is discharged from the down air outlet. There is a gap between the sealing strip and the boss.

3. The duct air conditioner according to claim 1, characterized in that, The first active space width and / or the second active space width a ranges from [3mm, 4mm].

4. The duct air conditioner according to claim 1, characterized in that, d1=d3-d2, d1>a; or, d3+d1>d>d3; Wherein, d is the width between the sealing partition and the connecting plate, d1 is the height of the sealing strip, a is the width of the movable space for the sealing partition to rotate relative to the connecting plate, d2 is the height of the boss, and d3 is the height of the rib.

5. The duct air conditioner according to claim 2, characterized in that, The sealing strip includes: The first side edge is used to abut against the protruding rib to close the gap between the sealing partition and the connecting plate; and, The second side edge is adjacent to the first side edge, and a second movable space is enclosed between the second side edge and the boss.

6. The duct air conditioner according to claim 2, characterized in that, The sealing partition includes: The first partition has a clearance opening thereon, and the air outlet of the volute is engaged with the clearance opening; and, The second partition is vertically fixed to the first partition, and the second partition is provided with the sealing strip.

7. The duct air conditioner according to claim 6, characterized in that, Also includes: A baffle, including a pivot shaft, is pivotally connected to the first partition via the pivot shaft. The pivot shaft rotates axially to drive the baffle to rotate. The baffle is used to isolate the inlet airflow and outlet airflow of the volute.

8. The duct air conditioner according to claim 7, characterized in that, The boss includes a blocking surface, which is an arc-shaped surface with the same curvature as the baffle. In the first air outlet mode, the side edge of the baffle overlaps the blocking surface to close the gap between the connecting plate and the baffle.

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