CN216924547U - Air outlet switching component and air conditioner indoor unit - Google Patents

Abstract

The present application relates to the technical field of air conditioners, and discloses an air outlet switching assembly and an air conditioner indoor unit. The air outlet switching assembly provided by the present application includes a centrifugal fan, a sealing baffle, a connecting plate and a power assembly. The centrifugal fan includes a volute and a wind wheel in the volute; the sealing baffle is fixedly connected to the volute; the sealing baffle and the connecting plate are rotated and connected to the volute through bearings. The air inlet and outlet air are located on both sides of the sealing baffle; The power assembly is used to drive the sealing baffle to drive the volute to rotate axially relative to the connecting plate; wherein, the ratio x of the diameter of the wind wheel to the height of the volute is in the range of 0.6≤x≤0.9. Driven by the power assembly, the sealing baffle drives the volute to rotate axially around the axis of the bearing, so that the air outlet switching assembly can switch the air outlet direction without adding a space for avoidance. On the premise of ensuring the air supply performance, the problem that the air-conditioning indoor unit with a thickness of 200mm in the space cannot be switched to the wind direction is solved.

Description

Air outlet switching assembly and air conditioner indoor unit

technical field

The present application relates to the technical field of air conditioners, for example, to an air outlet switching assembly and an air conditioner indoor unit.

Background technique

With the improvement of living standards, air conditioners have become indispensable household appliances for improving the quality of life, and are widely used. The air conditioner indoor units installed on the wall above the room or on the ceiling of the room are mostly sideways. When heating, the density of hot air is low. The uneven distribution causes the problem of hot on the top and cold on the bottom, especially for users whose hands and feet are cold, the experience is poor.

In the prior art, in order to realize the switching of the airflow direction of the air conditioner indoor unit, the air conditioner indoor unit can have different air outlet forms in different modes. An air conditioner indoor unit is disclosed, which includes a casing and a rotating air duct assembly. The casing has a first air outlet and a second air outlet; the rotating air duct assembly is arranged in the casing, and the rotating air duct assembly is rotatable relative to the casing to enable the air conditioner indoor unit to switch between the first air outlet mode and the second air outlet mode , when the air conditioner indoor unit is in the first air outlet mode, the air outside the casing enters from the first air outlet and is sent out from the second air outlet after flowing through the rotating air duct assembly. When the air conditioner indoor unit is in the second air outlet mode, the air outside the casing The wind enters from the second tuyere and is sent out from the first tuyere after passing through the rotating air duct assembly. The casing includes a fixed casing part and a movable casing part, the movable casing part can move in a direction away from the fixed casing part, and the moving stroke allows the rotating air duct assembly to rotate freely in the casing. The bottom of the fixed shell part is opened to form an open port, the movable shell part closes the open port, and the movable shell part can move downward relative to the open port to form an escape space between the open port and the movable shell part, and the escape space allows the rotation of the air duct The assembly penetrates at least partially into the clearance space when rotated.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

In the process of switching the air outlet of the existing rotating air duct assembly, it is necessary to provide a certain avoidance space for the rotation of the rotating air duct assembly, resulting in a large space occupied by the air conditioner indoor unit, which cannot meet the user's requirements for the air conditioner indoor unit that can supply air in a reverse direction. Small size needs.

Utility model content

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be an extensive review, nor to identify key/critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide an air outlet switching assembly and an indoor unit of an air conditioner. The sealing partition is driven by the power assembly to drive the volute to rotate axially around the axis of the bearing, so that the air outlet switching assembly can be performed without adding a space for avoidance. Switching the direction of the wind. On the premise of ensuring the air supply performance, the problem that the air-conditioning indoor unit with a thickness of 200mm in the space cannot be switched to the wind direction is solved.

In some embodiments, the air outlet switching assembly includes a centrifugal fan, a sealing baffle, a connecting plate and a power assembly. The centrifugal fan includes a volute and a wind wheel in the volute; the sealing baffle is fixedly connected to the volute; the sealing baffle and the connecting plate are rotatably connected through a bearing; the power component is used to drive the sealing baffle to drive the volute to rotate axially relative to the connecting plate ; Among them, the range of the ratio x of the diameter of the wind wheel to the height of the volute is: 0.6≤x≤0.9.

In some alternative embodiments, the volute includes an upper volute portion and a lower volute portion. The upper volute part includes an air outlet of the volute; the lower volute part is connected with the upper volute part by clamping; wherein, the range of the height h of the volute is: 160mm≤h≤195mm.

In some optional embodiments, the sealing baffle is rotatably connected to the connecting plate, and the sealing baffle includes a plurality of avoidance notches; wherein the number of centrifugal fans is multiple, and the plurality of volutes are fixed on the plurality of avoidance notches in a one-to-one correspondence. .

In some optional embodiments, the seal further includes a baffle, which is pivotally connected to the sealing baffle through a pivot; wherein the baffle is used to cooperate with the sealing baffle to isolate the inlet air flow and the outlet air flow of the centrifugal fan.

In some alternative embodiments, the power assembly includes a drive gear, a driven gear, and a first drive. The driven gear is meshed with the driving gear, and the driven gear is fixedly connected with the sealing baffle; the driving output end of the first driving device is connected with the driving gear to drive the driving gear to rotate, and then drive the driven gear to rotate, so that the driven gear Drive the sealing baffle to rotate relative to the connecting plate.

In some optional embodiments, the tooth surface of the driven gear is an arc tooth surface, and the range of the arc angle θ of the arc tooth surface is: 55°≤θ≤75°.

In some optional embodiments, the air outlet switching assembly further includes a rotating shaft; the rotating shaft is fixed through the wind wheels of a plurality of centrifugal fans, and the axial rotation of the rotating shaft can drive the plurality of wind wheels to rotate.

In some embodiments, the air-conditioning indoor unit includes the above-mentioned air outlet switching component, the air-conditioning indoor unit is provided with a side air outlet and a downward air outlet, the air-conditioning indoor unit can be switched between the first air outlet mode and the second air outlet mode, and the air-conditioning indoor unit In the first air outlet mode, the air enters from the side air vents and the air comes out from the lower air vents; when the air conditioner indoor unit is in the second air outlet mode, the wind enters the air from the lower air vents and exits from the side air vents.

In some optional embodiments, the plane where the side air vents are located is a first side surface, and the first side surface is a vertical surface; the plane where the downwind vents are located is a first bottom surface, and the first bottom surface is a horizontal plane; wherein, in the first air outlet mode , the range of the offset angle α between the plane where the air outlet of the volute is located and the first bottom surface is: 5°≤α≤15°. In the second air outlet mode, the plane where the air outlet of the volute is located is offset from the first side. The range of the angle β is: 10°≤β≤20°.

In some optional embodiments, the air conditioner indoor unit further includes a control unit, and the control unit is configured to: during the process of switching from the first air outlet mode to the second air outlet mode, first control the rotation of the volute, and then control the rotation of the baffle; and /or, during the process of switching from the second air outlet mode to the first air outlet mode, the baffle plate is controlled to rotate first, and then the volute is controlled to rotate.

The air outlet switching assembly and the air conditioner indoor unit provided by the embodiments of the present disclosure can achieve the following technical effects:

The air outlet switching assembly includes a centrifugal fan, a sealing baffle, a connecting plate and a power assembly. The centrifugal fan includes a volute and a wind wheel in the volute; the sealing baffle is fixedly connected to the volute; the connecting plate is fixed in the housing of the air conditioner indoor unit, and the sealing baffle and the connecting plate are rotatably connected through bearings; the power component is used to drive the seal The partition plate drives the volute to rotate axially relative to the connecting plate; wherein, the ratio x of the diameter of the wind wheel to the height of the volute is in the range of 0.6≤x≤0.9. Driven by the power assembly, the sealing baffle drives the volute to rotate axially around the axis of the bearing, so that the air outlet switching assembly can switch the air outlet direction without adding a space for avoidance. On the premise of ensuring the air supply performance, the problem that the air-conditioning indoor unit with a thickness of 200mm in the space cannot be switched to the wind direction is solved.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the accompanying drawings, which are not intended to limit the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings do not constitute a limitation of scale, and in which:

1 is a schematic diagram of the overall structure of an air conditioner indoor unit provided by an embodiment of the present disclosure;

2 is a schematic diagram of a partial structure of an air conditioner indoor unit provided by an embodiment of the present disclosure;

3 is another partial structural schematic diagram of the air conditioner indoor unit provided by the embodiment of the present disclosure;

4 is a schematic partial structure diagram of another air conditioner indoor unit provided by an embodiment of the present disclosure;

5 is a schematic diagram of the overall structure of a volute provided by an embodiment of the present disclosure;

FIG. 6 is a partial structural schematic diagram of a connecting plate and a power assembly provided by an embodiment of the present disclosure;

7 is a partial structural schematic diagram of a connecting plate and a sealing baffle provided by an embodiment of the present disclosure;

FIG. 8 is a partial structural schematic diagram of a housing and a centrifugal fan provided by an embodiment of the present disclosure.

Reference number:

1: shell; 101: side air outlet; 102: lower air outlet; 2: sealing baffle; 21: avoidance gap; 3: volute; 31: volute outlet; 32: upper volute; 33: lower volute part; 4: connecting plate; 5: power assembly; 51: driven gear; 52: first drive device; 53: driving gear; 6: rotating shaft; 7: wind wheel; 8: baffle plate; 81: pivot shaft; 9 : second driving device; 10: heat exchanger; 11: fixing base; 12: fixing frame.

Detailed ways

In order to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the purposes of implementing the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientations shown in the drawings or Positional relationship. These terms are primarily used to better describe the embodiments of the present disclosure and embodiments thereof, and are not intended to limit the fact that the indicated device, element, or component must have a particular orientation, or be constructed and operated in a particular orientation. In addition, some of the above-mentioned terms may be used to express other meanings besides orientation or positional relationship. For example, the term "on" may also be used to express a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific situations.

In addition, the terms "arranged", "connected" and "fixed" should be construed broadly. For example, "connection" may be a fixed connection, a detachable connection, or a unitary construction; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection through an intermediary, or two devices, elements or Internal connectivity between components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific situations.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that three relationships can exist. For example, A and/or B, means: A or B, or, A and B three relationships.

It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments may be combined with each other in the case of no conflict.

The air conditioner indoor unit in the present application includes a wall-mounted air conditioner indoor unit and a duct type air conditioner indoor unit. The embodiments of the present disclosure will be described in detail by taking a duct type air conditioner indoor unit as an example.

The traditional single-outlet ducted air conditioner indoor unit includes side air vents and downwind vents, usually the lower air inlet and the side air outlet. The air duct in the ducted air conditioner indoor unit housing is composed of fans and air duct components. , the air duct assembly is fixed in the shell to form a fixed air duct, so that the air is drawn in from the lower air outlet, passes through the fan and the heat exchanger, and then exits from the side air outlet. The traditional single-outlet ducted air conditioner indoor unit cannot meet the user's demand for the heating process. Although some of the existing ducted air conditioner indoor units can take in the air through the side air vents and discharge the air through the lower air vents, when the air conditioner indoor unit is switched between modes, the wind wheel assembly needs to be largely rotated relative to the housing, so that the air can be supplied in a reverse direction. The indoor unit of the air conditioner cannot be in a space with a thickness of 200mm, which can not only ensure the air supply performance but also realize the reversing air supply.

With reference to FIGS. 1-8 , embodiments of the present disclosure provide an air outlet switching assembly and an air conditioner indoor unit.

The air outlet switching assembly provided by the embodiment of the present disclosure includes a centrifugal fan, a sealing baffle 2 , a connecting plate 4 and a power assembly 5 . The centrifugal fan includes a volute 3 and a wind wheel 7 in the volute 3; the sealing baffle 2 is fixedly connected with the volute 3, and the inlet air flow and the outlet air flow of the volute 3 are located on both sides of the sealing baffle 2; the sealing baffle 2 and the connecting plate 4 are rotatably connected by bearings; the power assembly 5 is used to drive the sealing baffle 2 to drive the volute 3 to rotate axially relative to the connecting plate 4; wherein, the ratio x of the diameter of the wind wheel 7 to the height of the volute 3 is in the range of 0.6 ≤x≤0.9. The sealing baffle 2 drives the volute 3 to rotate axially around the axis of the bearing under the driving of the power assembly 5, so that the air outlet switching assembly can switch the air outlet direction without adding a space for avoidance. By setting the ratio of the diameter of the wind wheel 7 to the height of the volute 3, the air supply performance of the indoor unit of the air conditioner is guaranteed. The volute 3 rotates axially without providing additional space for avoidance, thus solving the problem that the air conditioner indoor unit with a thickness of 200mm cannot switch the wind direction on the premise of ensuring the air supply performance.

The air conditioner indoor unit provided by the embodiment of the present disclosure includes the above-mentioned air outlet switching component, the air conditioner indoor unit is provided with a side air outlet 101 and a down air outlet 102, and the air conditioner indoor unit can switch between the first air outlet mode and the second air outlet mode, When the indoor unit of the air conditioner is in the first air outlet mode, the air enters from the side air vent 101 and the air comes out from the lower air outlet 102; when the indoor unit of the air conditioner is in the second air outlet mode, the air enters the air from the lower air outlet 102 and exits from the side air outlet 101. wind.

Optionally, the plane where the side air vents 101 are located is the first side surface, and the first side surface is a vertical surface; the plane where the lower air vents 102 are located is the first bottom surface, and the first bottom surface is a horizontal plane; wherein, in the first air outlet mode, the scroll The range of the offset angle α between the plane where the air outlet of the casing 3 is located and the first bottom surface is: 5°≤α≤15°. In the second air outlet mode, the plane where the air outlet of the volute 3 is located is offset from the first side. The range of the angle β is: 10°≤β≤20°.

Specifically, when the ducted air conditioner indoor unit is operating in the heating condition, it is the first air outlet mode, and the air is taken in from the side air vents 101 , and the air is discharged from the down air vents 102 . The air outlet direction of the ducted air conditioner indoor unit is downward. Because the hot air is lighter, it is easy to float on the top of the room. better comfort. When the indoor unit of the ducted air conditioner operates in the cooling condition, it is the second air outlet mode, and the air enters the air from the lower air outlet 102 and the side air outlet 101 discharges the air. The air outlet direction of the ducted air conditioner indoor unit is lateral air outlet. During cooling, the cold air falls from top to bottom, and the cooling air supply is more uniform.

Because in the first air outlet mode, the range of the offset angle α between the plane where the air outlet of the volute 3 is located and the first bottom surface is: 5°≤α≤15°, in the second air outlet mode, the air outlet of the volute 3 The range of the offset angle β between the plane and the first side surface is: 10°≤β≤20°. Therefore, when switching between different air outlet modes, the rotation angle of the volute 3 does not need to reach 90°, so that the outlet air direction switching between the down air outlet and the side air outlet can be realized. Preferably, the rotation angle of the sealing baffle 2 is 65°, so that the ducted air conditioner indoor unit can have better air outlet performance within a space of 200 mm in thickness of the whole unit.

Optionally, the sealing baffle 2 is rotatably connected with the connecting plate 4, and the sealing baffle 2 includes a plurality of avoidance notches 21; wherein, the number of centrifugal fans is multiple, and the plurality of volutes 3 are fixed in a one-to-one correspondence with the plurality of avoidance notches. 21 on. Specifically, the sealing partition 2 includes a first partition and a second partition. The first partition is provided with an escape gap 21, and the volute outlet 31 is fixed on the avoidance gap 21; the second partition is vertically and fixedly connected to the first partition; wherein, the number of the second partition is two, which are respectively located in the volute. 3 On both sides of the air inlet, the first partition is located between the two second partitions. In this way, the connection between the first partition plate and the second partition plate can be made more reliable, and the positioning can be more accurate. The sealing partition 2 not only plays a certain bearing and supporting role for the multiple volutes 3 , but also prevents the casing 1 from being deformed. Moreover, the volute 3 can be driven to rotate, so that the air conditioner indoor unit can switch the air outlet without additional air duct switching element.

Optionally, the volute 3 is detachably connected to the sealing baffle 2 . When the ducted air conditioner indoor unit is being repaired and cleaned, the connection between the volute 3 and the sealing partition 2 can be disassembled, and the volute 3 can be disassembled from the downwind port 102 of the casing 1, which improves the convenience of component disassembly. .

Optionally, the air outlet switching assembly further includes a rotating shaft 6, which can be driven to rotate; the rotating shaft 6 is fixed through a plurality of wind wheels 7 of centrifugal fans, and the axial rotation of the rotating shaft 6 can drive the plurality of wind wheels 7 to rotate. The rotating shaft 6 and the sealing baffle 2 are independent of each other, so that the volute 3 and the wind wheel 7 can work independently, so as to realize various air outlet modes.

Optionally, the volute 3 includes an upper volute portion 32 and a lower volute portion 33 . The upper volute part 32 includes a volute air outlet 31; the lower volute part 33 is connected to the upper volute part 32 by clamping; the range of the height h of the volute 3 is: 160mm≤h≤195mm. The lower volute portion 33 and the upper volute portion 32 may be connected in the form of a bayonet snap, or other detachable connection forms, which are not limited herein. In order to strengthen the strength of the upper volute portion 32 , an L-shaped fixing plate can be added, and the two sides of the L-shaped fixing plate are respectively fixed on the air outlet position of the upper volute portion 32 and the sealing baffle 2 . Among them, the range of the height h of the volute 3 is: 160mm≤h≤195mm, which can realize the rotation of the volute 33 in the space of the thickness of 200mm of the whole machine, and at the same time ensure the air supply performance.

Optionally, the air outlet switching assembly also includes a baffle plate 8, which is pivotally connected to the sealing baffle plate 2 through a pivot; wherein, the baffle plate 8 is used to cooperate with the sealing baffle plate 2 to isolate the inlet air flow and the air outlet air of the centrifugal fan. flow. The volute outlet 31 is fixed on the avoidance gap 21 of the sealing partition 2, and the sealing partition 2 separates the volute outlet 31 from the air inlets on both sides of the volute 3, and the lower part of the sealing partition 2 can pass through the pivot shaft 81. The plate 8 is pivotally connected. When the ducted air conditioner indoor unit is switched from the first air outlet mode to the second air outlet mode, the sealing baffle 2 drives the volute 3 to rotate, so that the air outlet direction of the volute outlet 31 is switched from the lower air outlet 102 to the side The tuyere 101, then by adjusting the rotation angle of the baffle 8, the air duct forms a complete air duct curve, and then separates the air inlet air duct and the air outlet air duct, avoiding the mutual relationship between the air inlet air duct and the air outlet air duct The problems of turbulence and turbulence caused by interference are beneficial to reduce the noise in the indoor unit of the air conditioner and improve the air supply performance of the indoor unit of the air conditioner.

Optionally, the sealing baffle 2 includes a first end plate and a second end plate. The first end plate is located on the side of the volute 3 ; the second end plate is vertically and fixedly connected to the first end plate, and the second end plate is provided with a plurality of escape ports, and the escape ports are used for clamping the air outlet of the volute 3 . The first end plate and the connecting plate 4 are arranged in parallel, and both sides of the second end plate are connected with the first end plate. Two opposite first end plates are respectively penetrated at both ends of the pivot shaft 81 to improve the rotational stability of the baffle 8 .

Optionally, the power assembly 5 includes a driving gear 53 , a driven gear 51 and a first driving device 52 . The driving gear 53 is rotatably arranged on the connecting plate 4; the driven gear 51 is engaged with the driving gear 53, and the driven gear 51 is fixedly connected with the sealing partition 2; the driving output end of the first driving device 52 is connected with the driving gear 53, The driving gear 53 is driven to rotate, thereby driving the driven gear 51 to rotate, so that the driven gear 51 drives the sealing partition 2 to rotate relative to the connecting plate 4 . Specifically, a connecting plate 4 is fixed in the housing 1 of the indoor unit of the air conditioner, and a bearing is fixed through the connecting plate 4 . The driven gear 51 and the sealing partition 2 are located on both sides of the connecting plate 4, and the driven gear 51 and the sealing partition 2 are fixedly connected by bearings. By rotating the driven gear 51 , the sealing spacer 2 can be rotated relative to the connecting plate 4 . The arrangement of the bearing ensures that there is no problem that the components are damaged due to rotational friction between the sealing diaphragm 2 and the connecting plate 4 .

Optionally, the tooth surface of the driven gear 51 is an arc tooth surface, and the range of the radian angle θ of the arc tooth surface is: 55°≤θ≤75°. The driving gear 53 is driven to rotate by the first driving device 52 , and the driven gear 51 meshes with the driving gear 53 for transmission, thereby driving the driven gear 51 to rotate. Preferably, the sector angle of the driven gear 51 is 65°. When it is necessary to switch between different air outlet modes, by rotating the driven gear 51 by 65°, the air outlet can be switched between two mutually perpendicular air outlets. In the first air outlet mode, the driving gear 53 is located at one end of the sector tooth surface; in the second air outlet mode, the driving gear 53 is located at the other end of the sector tooth surface. Therefore, the indoor unit of the air conditioner can accurately connect the air outlet 31 of the volute to the preset position corresponding to the air outlet mode without additionally disposing other components, such as a micro-control switch.

Optionally, the air conditioner indoor unit further includes a heat exchanger 10, the heat exchanger 10 is located between the first side surface and the volute 3, and the heat exchanger 10 includes a plurality of fins; wherein, the plurality of fins are opposite to the first side surface vertical. In the first air outlet mode, the volute 3 is discharged obliquely downward from the lower air outlet 102; in the second air outlet mode, since the rotation angle of the volute 3 is an acute angle, the air outlet direction at the volute outlet 31 is further caused. The wind blows out from the side, which is easy to make the cold wind blow directly to the user, and the experience is poor. By slanting the fins of the heat exchanger 10 on the surface of the base plate of the heat exchanger 10, and making the fins perpendicular to the first side surface, the cold air can be horizontally discharged from the side air vents 101, and the air flow rate is increased. The distance from the air flow at the side air outlet 101 to the human body prevents the air from the ducted air conditioner indoor unit from directly facing the user.

Optionally, the air inlet spacing l of the wind wheel 7 is greater than or equal to 30 mm. In this way, the volute 3 can be rotated in a space with a thickness of 200 mm of the whole machine, and the air supply performance can be ensured at the same time. Preferably, the distance between the wind rotors 7 is 60mm, and the distance between the wind rotors 7 and the sealing baffle 2 is 30mm, so as to improve the air supply air volume and air intake uniformity of the ducted air conditioner indoor unit.

Optionally, the air conditioner indoor unit further includes a fixing base 11 and a second driving device 9 . The fixing base 11 is fixed on the upper wall surface of the housing 1 ; the second driving device 9 is located on the fixing base 11 , wherein the rotating shaft 6 passes through the fixing base 11 , and the second driving device 9 is used to drive the rotating shaft 6 to rotate axially. The fixed seat 11 is located between two adjacent volutes 3 , and the fixed seat 11 plays a certain bearing role on the rotating shaft 6 . The driving output end of the second driving device 9 is connected with the rotating shaft 6 to drive the rotating shaft 6 to rotate axially, thereby driving the plurality of wind wheels 7 to rotate. The fan wheel 7 and the volute 3 in this application can move independently, so as to meet the demands of more air supply modes.

Optionally, the air conditioner indoor unit further includes a fixing frame 12 . The fixing frame 12 is fixed on the upper wall surface of the housing 1 , the fixing frame 12 is embedded with a bearing, the outer ring of the bearing is fixedly connected with the fixing frame 12 , and the inner ring of the bearing is fixedly connected with the rotating shaft 6 . The fixed frame 12 and the fixed base 11 share the load of the rotating shaft 6, so that the rotating shaft 6 can run more stably.

Optionally, the air conditioner indoor unit further includes a control unit, and the control unit is configured to: in the process of switching from the first air outlet mode to the second air outlet mode, firstly control the volute 3 to rotate, and then control the baffle 8 to rotate; and/or , During the process of switching from the second air outlet mode to the first air outlet mode, the baffle 8 is first controlled to rotate, and then the volute 3 is controlled to rotate. The ducted air conditioner indoor unit of the present application is provided with a rotatable baffle 8, which can play a certain guiding role in the airflow under different working conditions, and whether it is a cooling working condition or a heating working condition, the baffle 8 rotates through the baffle 8. At a certain angle, a complete air duct curve can be formed to avoid airflow turbulence and turbulence in the air duct, thereby increasing the air supply air volume and reducing the air duct noise.

The foregoing description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples are only representative of possible variations. Unless expressly required, individual components and functions are optional and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Embodiments of the present disclosure are not limited to the structures that have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An air outlet switching assembly, applied to an air conditioner indoor unit, is characterized in that, comprising: a centrifugal fan, including a volute and a wind wheel in the volute; connection board, a sealing baffle, on which a volute is fixedly arranged, the sealing baffle is rotatably connected with the connecting plate, and the air inlet air flow and the air outlet air flow of the volute are located on both sides of the sealing baffle; and, a power assembly, used for driving the sealing baffle to rotate relative to the connecting plate, thereby driving the volute to rotate, so as to change the air outlet direction of the air outlet of the volute; Wherein, the ratio x of the diameter of the wind wheel to the height of the volute is in the range of 0.6≤x≤0.9. 2. The air outlet switching assembly according to claim 1, wherein the volute comprises: an upper volute portion, including a volute outlet; and, the lower volute part is connected with the upper volute part by clamping; Wherein, the range of the height h of the volute is: 160mm≤h≤195mm. 3. The air outlet switching assembly according to any one of claims 1 and 2, wherein, The sealing baffle is rotatably connected with the connecting plate, and the sealing baffle includes a plurality of avoidance gaps; Wherein, the number of the centrifugal fans is multiple, and the multiple volutes are fixed on the multiple avoidance notches in a one-to-one correspondence. 4. The air outlet switching assembly according to claim 3, further comprising: a baffle, which is pivotally connected to the sealing baffle through a pivot; Wherein, the baffle is used to cooperate with the sealing baffle to isolate the air inlet air flow and the air outlet air flow of the centrifugal fan. 5. The air outlet switching assembly according to claim 1, wherein the power assembly comprises: a first drive device, including a drive output end; a driving gear; disposed on the drive output; and, A driven gear meshes with the driving gear, and the driven gear is fixedly connected with the sealing baffle; Wherein, the driving output end of the first driving device drives the driving gear to rotate, and then drives the driven gear to rotate, so that the driven gear drives the sealing baffle to rotate relative to the connecting plate. 6. The air outlet switching assembly according to claim 5, wherein, The tooth surface of the driven gear is an arc tooth surface, and the range of the arc angle θ of the arc tooth surface is: 55°≤θ≤75°. 7. The air outlet switching assembly of claim 3, further comprising: The rotating shaft can be driven to rotate, the rotating shaft is fixed through the wind wheels of a plurality of centrifugal fans, and the axial rotation of the rotating shaft can drive the plurality of wind wheels to rotate. 8. An air conditioner indoor unit, the casing of which is provided with a side air outlet and a down air outlet, characterized in that it comprises the air outlet switching assembly as claimed in claim 4, The air conditioner indoor unit can be switched between the first air outlet mode and the second air outlet mode, and the air conditioner indoor unit is in the first air outlet mode, and the air enters the air from the side air outlet and exits the air from the lower air outlet; the air conditioner indoor unit is in the first air outlet mode. In the second air outlet mode, the wind enters from the lower air outlet and exits from the side air outlet. 9. The air conditioner indoor unit according to claim 8, wherein The plane where the side air outlet is located is a first side surface, and the first side surface is a vertical surface; The plane where the downwind port is located is a first bottom surface, and the first bottom surface is a horizontal plane; Wherein, in the first air outlet mode, the range of the offset angle α between the plane where the air outlet of the volute is located and the first bottom surface is: 5°≤α≤15°, the second air outlet mode Below, the range of the offset angle β between the plane where the air outlet of the volute is located and the first side surface is: 10°≤β≤20°. 10. The air conditioner indoor unit according to claim 8, further comprising a control unit configured to: During the process of switching from the first air outlet mode to the second air outlet mode, first control the rotation of the volute, and then control the rotation of the baffle; or, During the process of switching from the second air outlet mode to the first air outlet mode, the baffle is controlled to rotate first, and then the volute is controlled to rotate.

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