Air duct assembly and air conditioner having the same

Abstract

The application discloses a kind of air duct assemblies and the air conditioner with it, air duct assembly includes: shell, fan assembly and at least one air guide piece.Wall is formed in the shell and is communicated with containing cavity air duct import, the end of rectification cavity away from containing cavity is formed with the air outlet of slit shape, fan assembly includes wind wheel and the motor for driving wind wheel rotation, wind wheel is arranged in containing cavity, containing cavity and rectification cavity are arranged in the axial direction of wind wheel, air guide piece is arranged on the shell, air guide piece includes air guide part, air guide part is located downstream of air outlet and is arranged opposite air outlet, air guide part is movable along the length direction of air outlet.According to the air duct assembly of the embodiment of the application, the air supply distance is far, the energy consumption is low and the noise is low, and the air outlet direction of different positions of air outlet can be adjusted, to meet the more air outlet demand of user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air treatment equipment, in particular to an air duct assembly and an air conditioner with the same. BACKGROUND

[0002] As a common device for indoor air conditioning, the air supply distance of an air conditioner affects the cooling / heating performance of the air conditioner. In the related art, the air outlet distance of the air conditioner is short, which affects the cooling / heating performance of the air conditioner. In order to increase the air supply distance, the power or rotating speed of the air wheel is usually increased, which however increases the energy consumption and working noise. SUMMARY

[0003] The present application aims to at least solve one of the problems in the prior art. To this end, one object of the present application is to provide an air duct assembly with a long air supply distance, low energy consumption and low noise, and capable of adjusting the air outlet direction at different positions of the air outlet.

[0004] The present application also provides an air conditioner with the above air duct assembly.

[0005] According to the air duct assembly of the first aspect of the present application, the air duct assembly comprises a housing, the housing defines a containing cavity and a rectifying cavity which are in communication with each other, the housing is formed with an air duct inlet which is in communication with the containing cavity, and the wall of the rectifying cavity away from the containing cavity is formed with an air outlet in the form of a slit; a fan assembly comprising an air wheel and a motor for driving the air wheel to rotate, the air wheel is arranged in the containing cavity, and the containing cavity and the rectifying cavity are arranged in the axial direction of the air wheel; at least one air guide member, the air guide member is arranged on the housing, the air guide member comprises an air guide part, the air guide part is arranged downstream of the air outlet and opposite to the air outlet, and the air guide part is movable along the length direction of the air outlet.

[0006] According to the air duct assembly of the present application, the air outlet is in the form of a slit, the airflow is ejected through the air outlet to a farther place, better cooling / heating effect is achieved, and the energy consumption and noise are low; meanwhile, the air guide part of the air guide member is movable along the length direction of the air outlet, the air outlet direction at different positions of the air outlet can be adjusted by moving the air guide part of the air guide member, and more air outlet requirements of users are met.

[0007] According to some embodiments of the present application, the sum of the lengths of the air guide parts of all the air guide members in the length direction of the air outlet is less than the length of the air outlet.

[0008] According to some embodiments of the present application, the air guide members are multiple and arranged along the length direction of the air outlet.

[0009] Optionally, at least two of the plurality of air guiding members are connected.

[0010] Further, the at least two connected air guiding members are integrally formed.

[0011] Optionally, the plurality of air guiding members are divided into at least one group, each group including two air guiding members, and the two air guiding members in each group are connected.

[0012] According to some embodiments of the present application, the distance between the air outlet and the air guiding portion is L, and the L ranges from 3 to 15 mm.

[0013] According to some embodiments of the present application, the air outlet extends along the circumferential direction of the fan wheel and air is discharged from the air outlet along the axial direction of the fan wheel, and the outer periphery of the air guiding portion is located on the side of the outer periphery of the air outlet away from the central axis of the fan wheel.

[0014] Optionally, the projection of the air outlet on a reference surface is an air outlet projection, the projection of the air guiding portion on the reference surface is an air guiding portion projection, the distance between the outer periphery of the air outlet projection and the outer periphery of the air guiding portion projection is not greater than 0.5D, the reference surface is perpendicular to the central axis of the fan wheel, and the D is the diameter of the fan wheel.

[0015] According to some embodiments of the present application, the included angle between the end surface of the air outlet and the air guiding portion ranges from 20 to 70°.

[0016] According to some embodiments of the present application, the air guiding member is rotatably arranged on the shell, and when the air guiding member is rotated, the air guiding portion moves along the length direction of the air outlet.

[0017] Optionally, the rotation axis of the air guiding member is collinear with the rotation axis of the fan wheel.

[0018] Optionally, the air outlet extends along the circumferential direction of the fan wheel, the air guiding member is a plurality of air guiding members, and the rotation axes of the plurality of air guiding members are collinear.

[0019] Optionally, the air guiding member includes a connecting portion connected with the air guiding portion, the connecting portion is rotatably connected with the shell, the front side wall of the shell is recessed towards the back to form a recessed cavity, and the connecting portion is accommodated in the recessed cavity.

[0020] In some alternative embodiments of the present application, the air outlet extends along the circumference of the air wheel and is annular, and the air guide members are arranged in plurality along the circumference of the air outlet, at least one of the air guide members is arranged in a staggered manner with at least one portion of the air outlet in the radial direction when rotated to a position corresponding to the air guide portion and the lower portion of the air outlet.

[0021] Alternatively, the air outlet is circular annular, each of the air guide members comprises a connecting portion connected with the air guide portion, the connecting portion is rotatably connected with the shell, the rotation axes of the plurality of air guide members are all collinear with the central axis of the air outlet, and the radial lengths of the connecting portions of at least two of the air guide members are different.

[0022] Alternatively, the air outlet comprises an upper air outlet segment and a lower air outlet segment connected in series, the upper air outlet segment is semicircular arc-shaped, the lower air outlet segment is semieliptical arc-shaped, the major axis of the lower air outlet segment extends along the up-down direction, the major axis of the lower air outlet segment is greater than the diameter of the upper air outlet segment, the rotation centers of the plurality of air guide members are all arranged concentrically with the center of the upper air outlet segment and the center of the lower air outlet segment, and the radial lengths of the plurality of air guide members are all the same.

[0023] According to some embodiments of the present application, a guide rail extending along the length direction of the air outlet is formed on the shell, and the air guide member is slidably arranged on the guide rail along the length direction of the guide rail, and the air guide portion moves along the length direction of the air outlet when the air guide member slides along the length direction of the guide rail.

[0024] According to some embodiments of the present application, the shell comprises a first shell and a second shell connected in series, the first shell comprises a first rectifying shell, a second rectifying shell and a baffle, the first rectifying shell is arranged around the outer periphery of the baffle and is connected with the baffle, the baffle is located at one end of the first rectifying shell adjacent to the second shell, the second rectifying shell is arranged around the outer periphery of the first rectifying shell, a support is arranged between the second rectifying shell and the first rectifying shell to space the second rectifying shell and the first rectifying shell apart, the first rectifying shell, the second rectifying shell and the baffle jointly define the rectifying cavity, the second shell is cylindrical and defines the containing cavity, and the second rectifying shell is connected with the second shell.

[0025] Alternatively, the side of the rectifying cavity facing the containing cavity is open to communicate with the containing cavity, the airflow flows out of the air wheel in the radial direction after flowing through the air wheel, and the flow direction of the airflow is changed from the radial direction of the air wheel to the axial direction of the air wheel during the process of flowing from the containing cavity into the rectifying cavity, and the airflow is blown out of the air outlet after flowing through the rectifying cavity.

[0026] According to the air conditioner of the second aspect of the embodiments of the present application, the air duct assembly of the first aspect of the embodiments of the present application is provided.

[0027] According to the air conditioner of the embodiments of the present application, the air duct assembly is provided, so that the air supply distance of the air conditioner is long, the cooling / heating effect is better, and the energy consumption and noise are low; meanwhile, by moving the air guiding part of the air guiding member, the air outlet direction of different positions of the air outlet can be adjusted, so as to meet more air outlet requirements of the user.

[0028] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0030] Figure 1 is a perspective view of the partial structure of the air conditioner according to some embodiments of the present application, in which the air guiding part of the air guiding member is located at a position of the air outlet;

[0031] Figure 2 is a front view of the partial structure of the air conditioner in Figure 1

[0032] Figure 3 is a sectional view along the line A-A in Figure 2

[0033] Figure 4 is a side view of the partial structure of the air conditioner in Figure 1

[0034] Figure 5 is a perspective view of the partial structure of the air conditioner according to some embodiments of the present application, in which the air guiding part of the air guiding member is located at another position of the air outlet;

[0035] Figure 6 is a front view of the partial structure of the air conditioner in Figure 5

[0036] Figure 7 is a sectional view along the line B-B in Figure 6

[0037] Figure 8 is a side view of the partial structure of the air conditioner in Figure 5

[0038] Reference Signs:

[0039] ​​​​​​First housing 1a; rectifying cavity 11a; air outlet 111; upper air outlet section 111a; lower air outlet section 111e; first side wall 111b; second side wall 112b; first rectifying shell 111c; second rectifying shell 112c; baffle 113c; motor cavity 12a; guide vane 13a; matching protrusion 14a; concave cavity 15a; air duct inlet 113;

[0040] Second housing 2a; accommodating cavity 21a;

[0041] Impeller 211; motor 212;

[0042] Third housing 3c; heat exchange cavity 31c;

[0043] Heat exchanger 4a; partition 5a;

[0044] Air guide 6a; air guide part 61a; connecting part 62a; matching hole 63a. DETAILED DESCRIPTION

[0045] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0046] A wind duct assembly according to embodiments of the present application is described below with reference to the drawings. The wind duct assembly can be used in an air conditioner.

[0047] Referring to Figure 3 and Figure 7 The wind duct assembly according to the first aspect embodiment of the present application comprises a housing, a fan assembly and at least one air guide 6a.

[0048] Continuing to refer to Figure 3 and Figure 7 The housing defines an accommodating cavity 21a and a rectifying cavity 11a in communication with each other, and the housing is formed with an air duct inlet 113 in communication with the accommodating cavity 21a, and the wall of the rectifying cavity 11a away from the accommodating cavity 21a is formed with a slit-shaped air outlet 111. The fan assembly comprises an impeller 211 and a motor 212 for driving the impeller 211 to rotate, the impeller 211 is arranged in the accommodating cavity 21a, and the accommodating cavity 21a and the rectifying cavity 11a are arranged in the axial direction of the impeller 211.

[0049] When the air duct assembly is in operation, the motor 212 drives the fan wheel 211 to rotate, and air flows into the housing from the air duct inlet 113, sequentially flows through the accommodating cavity 21a and the rectifying cavity 11a, and is discharged from the air outlet 111 to the indoor environment. When the air duct assembly is used in an air conditioner, the indoor environment temperature can be improved. During the air flow through the rectifying cavity 11a, the air flow can be rectified to make the air flow more orderly. After the air flow is rectified by the rectifying cavity 11a, the air flow is discharged from the air outlet 111 in the form of a slit to the indoor environment. In the case that the power and the rotating speed of the fan wheel 211 are the same, the air supply distance can be increased, the air supply is farther, the cooling / heating effect is better, and the energy consumption and the noise are lower.

[0050] The air outlet 111 can be oriented to discharge air to the front, or the air outlet 111 can be oriented to discharge air to the front and upward.

[0051] Optionally, the air outlet 111 can extend in a straight line or in a curve. For example, the air outlet 111 can be in the form of a strip, an arc, or a ring (for example, a circular ring, an elliptical ring, a polygonal ring, etc.).

[0052] For example, the air outlet 111 is in the form of a ring, and the air outlet 111 can be arranged around the central axis of the fan wheel 211. In this way, the air outlet range can be large, and when the air outlet speed is increased to increase the air outlet distance, the air conditioner can have a large air outlet range, and the cooling / heating performance of the air conditioner can be further improved.

[0053] According to Q (air volume) = S (air outlet area) · V (air speed), under the same air volume, the smaller the air outlet area, the greater the air outlet speed, so the air can be sent farther under the same air volume, and the cooling / heating effect is better. At the same time, according to Bernoulli's equation, for incompressible fluid, there is: ρgh + 0.5ρv 2 + p = C, that is, gravitational potential energy + kinetic energy + pressure potential energy = constant. For a gas, the gravitational potential energy can be ignored, so the greater the kinetic energy, the smaller the pressure. Therefore, for high-speed jets, a significant low pressure will be formed in the jet area, which will form a suction traction effect on the surrounding air, thereby increasing the total air flow rate, and further improving the effect of long-distance air supply.

[0054] Optionally, the wind wheel 211 can be a centrifugal wind wheel, so that the air supply distance can be further increased. When the wind wheel 211 is a centrifugal wind wheel, the air outlet 111 can be arranged in the axial direction of the wind wheel 211. Specifically, when the air duct assembly is used in an air conditioner, the casing of the air conditioner is provided with an air inlet opposite the air duct inlet 113 in the axial direction of the wind wheel 211, so that the external air flow enters the casing through the air inlet, and then enters the casing through the air duct inlet 113 and exchanges heat with the heat exchanger 4a. After being pressurized by the wind wheel 211, the high-pressure air flow is radially thrown out of the wind wheel 211, and then changes direction through the accommodating cavity 21a and the flow regulating cavity 11a, and is finally ejected from the air outlet 111. During the process of the air flow flowing from the accommodating cavity 21a to the flow regulating cavity 11a, the air flow changes from the radial direction of the wind wheel 211 to the axial direction of the wind wheel 211, and the axial direction of the wind wheel 211 can extend in the front-rear direction. At this time, the air flow can be sent forward, and the air flow after the change of direction can be made more orderly through the flow regulating effect of the flow regulating cavity 11a, so that the air flow loss is reduced.

[0055] Optionally, the casing can be arranged in the casing, and the part of the casing adjacent to the air outlet 111 can be arranged outside the casing.

[0056] Optionally, when the wind wheel 211 is a centrifugal wind wheel 211, at least the part of the flow regulating cavity 11a adjacent to the accommodating cavity 21a can extend around the central axis of the wind wheel 211, so that the air flow pressurized by the wind wheel 211 can be radially thrown out of the wind wheel 211 and changed direction, so that the air flow in each part of the circumferential direction of the wind wheel 211 can directly flow into the flow regulating cavity 11a, thereby reducing the flow loss.

[0057] Optionally, the air duct inlet 113 and the air outlet 111 are arranged on both sides of the axial direction of the wind wheel 211, and the casing of the air conditioner is provided with an air inlet opposite the air duct inlet 113 and communicating with the air duct inlet 113. Therefore, the air inlet and the air outlet 111 are arranged on both sides of the axial direction of the wind wheel 211, so that the air flow can generally flow in the axial direction of the wind wheel 211 during the process of flowing through the internal space of the air conditioner, so that the flow path of the air flow is simple and the flow path of the air flow is reduced, the flow loss of the air flow is reduced, the air flow is blown further, and the mutual interference and influence of the air flow between the air inlet and the air outlet 111 are reduced.

[0058] The air guide 6a is arranged on the housing and includes an air guide portion 61a arranged downstream of and opposite to the air outlet 111. In operation of the air duct assembly, the air guide portion 61a of the air guide 6a can guide air flowing out of the air outlet 111 corresponding to the air guide portion 61a, and adjust the air flowing direction of the air outlet 111 corresponding to the air guide portion 61a. Further, the air guide portion 61a is movable along the length direction of the air outlet 111. Thus, by moving the air guide portion 61a, the air guide portion 61a can be moved to different positions of the air outlet 111, so as to adjust the air flowing direction of different positions of the air outlet 111, and meet more air flowing demands of the user.

[0059] It should be noted that, when the air outlet 111 is annular, the length direction of the air outlet 111 is the circumferential direction of the air outlet 111; when the air outlet 111 is long strip-shaped, the length direction of the air outlet 111 is the length direction of the air outlet 111.

[0060] In addition, when the air duct assembly is in operation, the part of the air outlet 111 not covered by the air guide portion 61a flows out along the normal air flowing direction of the air outlet 111, and the part of the air outlet 111 covered by the air guide portion 61a changes the air flowing direction by the air guide of the air guide portion 61a, so that different parts of the air outlet 111 have different air flowing directions, and the air flowing range and the air flowing direction diversity of the air outlet 111 are expanded.

[0061] For example, in the example of Figures 1-3 , the air guide portion 61a of the air guide 6a is moved to correspond to the upper part and the lower part of the air outlet 111, and at this time, the air flowing direction of the part of the air outlet 111 corresponding to the air guide portion 61a can be adjusted by the air guide of the air guide portion 61a. For example, the upper part of the air outlet 111 can flow out obliquely upward, the lower part of the air outlet 111 can flow out obliquely downward, and the other part of the air outlet 111 not covered by the air guide portion 61a can flow out straight forward.

[0062] For another example, in the example of Figures 5-8 , the air guide portion 61a of the air guide 6a is moved to correspond to the left part and the right part of the air outlet 111, and at this time, the air flowing direction of the part of the air outlet 111 corresponding to the air guide portion 61a can be adjusted by the air guide of the air guide portion 61a. For example, the left part of the air outlet 111 can flow out to the left front, the right part of the air outlet 111 can flow out to the right front, and the other part of the air outlet 111 not covered by the air guide portion 61a can flow out straight forward.

[0063] And, when the air guide 6a is multiple, the air guide directions of at least two air guide parts 61a in the multiple air guides 6a can be different, so that the air outlet directions of the parts of the air outlet 111 corresponding to the air guide parts 61a with different air guide directions are also different, so that the air outlet direction can be further diversified, and the refrigeration / heating performance is further improved. When the air guide directions of at least two air guide parts 61a in the multiple air guides 6a are different, the air guide parts 61a of the multiple air guides 6a can be made to collectively cover the entire air outlet 111.

[0064] According to the air duct assembly of the embodiment of the present application, by setting the air outlet 111 as a slit, the airflow is ejected out through the air outlet 111, which can be blown to a farther place, has a better refrigeration / heating effect, and has lower energy consumption and noise; at the same time, by setting the air guide 6a and making the air guide part 61a of the air guide 6a movable along the length direction of the air outlet 111, by moving the air guide part 61a of the air guide 6a, the air outlet directions of different positions of the air outlet 111 can be adjusted, and more air outlet requirements of the user can be met.

[0065] According to some embodiments of the present application, referring to Figure 3 and Figure 7 The rectification cavity 11a includes a first side wall 111b and a second side wall 112b extending along the length direction of the air outlet 111, the first side wall 111b and the second side wall 112b are oppositely and spacedly arranged, the air outlet 111 is defined between the free end of the first side wall 111b and the free end of the second side wall 112b, and the spacing W of the first side wall 111b and the second side wall 112b at the air outlet 111 is not greater than 0.05D, wherein the D is the diameter of the fan wheel 211. Thus, the air outlet speed of the air outlet 111 can be ensured to be large, so that the air conditioner can send air to a farther place.

[0066] According to some embodiments of the present application, the length of the air outlet 111 ranges from 0.5D to 8D, wherein the D is the diameter of the fan wheel 211. For example, when the air outlet 111 is annular, the length of the air outlet 111 is the circumference of the air outlet 111; when the air outlet 111 is long strip-shaped, the length of the air outlet 111 is the extension length of the air outlet 111. Thus, while the air outlet speed of the air outlet 111 is made to be large, the air outlet area can be ensured, so that the air conditioner has a large air outlet range, and the refrigeration / heating performance of the air conditioner is further improved.

[0067] According to some embodiments of the present application, referring to Figure 3 and Figure 7In the axial direction of the wind wheel 211, the distance between the trailing edge of the blade of the wind wheel 211 and the air outlet 111 is d, and the value of d is in the range of 0.1D-1.5D, where D is the diameter of the wind wheel 211. In this way, after the airflow flows through the wind wheel 211 and before the airflow flows out of the air outlet 111, the airflow is given a sufficient flow distance to adjust the flow direction of the airflow and to make the airflow more orderly, thereby reducing flow loss. Moreover, while the airflow becomes more orderly in the rectifying cavity 11a, the flow path of the airflow in the rectifying cavity 11a can be made shorter, so that the flow resistance and flow loss are smaller.

[0068] According to some embodiments of the present application, with reference to Figure 3 and Figure 7 , the shell comprises a first shell 1a and a second shell 2a connected together, the first shell 1a comprises a first rectifying shell 111c, a second rectifying shell 112c, and a baffle 113c, the first rectifying shell 111c and the second rectifying shell 112c can be cylindrical or conical, and the baffle 113c can be substantially perpendicular to the rotation axis of the wind wheel 211. The first rectifying shell 111c is arranged around the outer periphery of the baffle 113c and is connected to the baffle 113c, the baffle 113c is located at one end of the first rectifying shell 111c adjacent to the second shell 2a, the second rectifying shell 112c is arranged around the outer periphery of the first rectifying shell 111c, a support is arranged between the second rectifying shell 112c and the first rectifying shell 111c to space the second rectifying shell 112c and the first rectifying shell 111c apart, and the two ends of the support are connected to the second rectifying shell 112c and the first rectifying shell 111c respectively, the first rectifying shell 111c, the second rectifying shell 112c, and the baffle 113c together define the rectifying cavity 11a, the second shell 2a is cylindrical and defines a containing cavity 21a, the second shell 2a can be cylindrical, and the second rectifying shell 112c is connected to the second shell 2a. After the airflow flows into the containing cavity 21a and is pressurized by the wind wheel 211, the airflow can be thrown radially out of the wind wheel 211, and the baffle 113c can prevent the airflow from diverging in the axial direction when the airflow flows through the wind wheel 211, facilitating the formation of the rectifying cavity 11a and the containing cavity 21a, and making the structure of the shell simple.

[0069] In the above, the first side wall 111b can be a part of the first rectifying shell 111c, and the second side wall 112b can be a part of the second rectifying shell 112c (see Figures 1-8 ); or the first side wall 111b and the second side wall 112b can both be a part of the second rectifying shell 112c.

[0070] Optionally, with reference to Figure 3 and Figure 7The side of the rectifying cavity 11a facing the containing cavity 21a is open to communicate with the containing cavity 21a, the airflow flows out of the wind wheel 211 in the radial direction of the wind wheel 211, and in the process of flowing from the containing cavity 21a into the rectifying cavity 11a, the flow direction of the airflow is changed from the radial direction of the wind wheel 211 to the axial direction of the wind wheel 211, and the airflow blows out of the air outlet 111 after flowing through the rectifying cavity 11a. Therefore, the air inlet of the rectifying cavity 11a has a large space and area, and the airflow can directly flow into the rectifying cavity 11a through the containing cavity 21a after flowing through the wind wheel 211, thereby reducing the flow loss of the airflow.

[0071] According to some embodiments of the present application, referring to Figure 3 and Figure 7 The flow area of the rectifying cavity 11a gradually decreases in the flow direction of the airflow. Therefore, in the process of rectifying the airflow flowing through the rectifying cavity 11a, the flow rate of the airflow can gradually increase in the flow direction of the airflow, so that the airflow flows out of the air outlet 111 at a high speed, thereby increasing the blowing distance of the air conditioner.

[0072] According to some embodiments of the present application, at least one group of guide vanes is arranged in the rectifying cavity 11a, for example, one group of guide vanes or multiple groups of guide vanes can be arranged. Each group of guide vanes includes multiple guide vanes 13a, and each group of multiple guide vanes 13a is arranged in the circumferential direction of the rectifying cavity 11a. Each guide vane 13a can be connected to the inner wall of the rectifying cavity 11a to fix the guide vane 13a in the rectifying cavity 11a. When there are multiple groups of guide vanes 13a, the multiple groups of guide vanes 13a are arranged in the flow direction of the airflow. Therefore, by arranging the guide vanes 13a, the guide vanes 13a can further rectify the airflow in the process of the airflow flowing through the rectifying cavity 11a, so that the airflow becomes more orderly and the flow loss is reduced. The number of groups of guide vanes 13a can be determined according to the size of the rectifying cavity 11a and the distance of the airflow flowing through the rectifying cavity 11a. When the guide vanes 13a can better rectify the airflow, the flow resistance of the guide vanes 13a to the airflow is relatively small, thereby achieving a better comprehensive effect.

[0073] In the shell including the first shell 1a and the second shell 2a connected as described above, and the first shell 1a including the first rectifying shell 111c, the second rectifying shell 112c, and the baffle 113c as described above, the guide vanes 13a arranged in the rectifying cavity 11a are connected to the second rectifying shell 112c and the first rectifying shell 111c at both ends, and the guide vanes 13a can serve as the support at this time. Therefore, the guide vanes 13a can not only rectify the airflow, but also can separate the second rectifying shell 112c and the first rectifying shell 111c.

[0074] It should be noted that the "multiple" in the present application refers to two or more.

[0075] According to some embodiments of the present application, with reference to Figure 1 , Figure 3 , Figure 5 and Figure 7 , the shell comprises a first shell 1a and a second shell 2a which are detachably connected, the first shell 1a defines a rectifying cavity 11a therein, and the second shell 2a defines a containing cavity 21a therein. Thus, by making the rectifying cavity 11a and the containing cavity 21a defined by two detachable parts respectively, the maintenance, replacement, etc. of the internal components of the air conditioner such as the fan wheel 211 and the motor 212 are facilitated, and the same specification of the second shell 2a can be matched with the first shell 1a having different rectifying cavities 11a or air outlets 111 according to the air outlet requirements, so that air conditioners having different air outlet effects can be produced under the condition that only the structure of the first shell 1a is changed and the other structures of the air conditioner remain unchanged, thereby reducing the types of materials and saving production costs.

[0076] Optionally, the first shell 1a and the second shell 2a can be detachably connected through a buckle structure; or, the first shell 1a and the second shell 2a can also be detachably connected through fasteners such as screws; or, the first shell 1a and the second shell 2a are detachably connected through the buckle structure and the fasteners.

[0077] It should be noted that the "front", "rear", "left" and "right" directions described in the present application are relative to the direction of the air conditioner when in use, wherein the direction of the air conditioner facing the user is the front.

[0078] According to some embodiments of the present application, the sum of the lengths of the air guiding portions 61a of all the air guiding members 6a in the length direction of the air outlet 111 is less than the length of the air outlet 111. Thus, when the air duct assembly is air outletting, a part of the air outlet 111 can not be covered by the air guiding portion 61a, so that a part of the air outlet 111 is air outletted according to the normal air outlet direction of the air outlet 111, and another part of the air outlet 111 changes the air outlet direction through the air guiding effect of the air guiding portion 61a, that is, even in the case that the air guiding directions of the air guiding portions 61a are the same, different parts of the air outlet 111 can have different air outlet directions, thereby expanding the air outlet range of the air outlet 111 and the diversity of the air outlet direction. In addition, the part of the air outlet 111 which is not covered by the air guiding portion 61a can be air outletted towards the front, and the part of the air outlet 111 which is covered by the air guiding portion 61a can be air outletted towards the direction away from the center of the air duct assembly (for example, air outletted towards left, right, up or down), so that the air outlet is more diversified and three-dimensional.

[0079] According to some embodiments of the present application, with reference to Figure 1 , Figure 2 , Figure 5 andFigure 6 The plurality of air guiding members 6a are arranged along the length direction of the air outlet 111. In this way, the plurality of air guiding members 6a are arranged to make the air outlet 111 more flexible in adjusting the air outlet direction. For example, the air guiding portions 61a of the plurality of air guiding members 6a can be moved to concentrate on a certain part of the air outlet 111. The air guiding portions 61a of the plurality of air guiding members 6a are arranged in sequence along the length direction of the air outlet 111, and the adjacent two air guiding portions 61a abut each other, so that the part of the air outlet 111 covered by the air guiding portions 61a is continuous. For another example, the air guiding portions 61a of the plurality of air guiding members 6a can be arranged at intervals along the length direction of the air outlet 111, and the adjacent two air guiding portions 61a are spaced apart to make the part of the air outlet 111 between the adjacent two air guiding portions 61a uncovered by the air guiding portions 61a, so that the part of the air outlet 111 covered by the air guiding portions 61a and the part of the air outlet 111 uncovered by the air guiding portions 61a are arranged alternately along the length direction of the air outlet 111. In addition, when there are a plurality of air guiding members 6a, the air guiding directions of at least two air guiding portions 61a of the plurality of air guiding members 6a can be different, so that the air outlet directions of the parts of the air outlet 111 corresponding to the air guiding portions 61a with different air guiding directions are also different, thereby further diversifying the air outlet direction and further improving the refrigeration / heating performance.

[0080] Optionally, at least two of the plurality of air guiding members 6a are connected, for example, only two of the plurality of air guiding members 6a can be connected, or all of the plurality of air guiding members 6a can be connected to each other. In this way, at least two of the plurality of air guiding members 6a can be connected as a whole, and when one of the air guiding members 6a moves, the other air guiding members 6a connected thereto can also move simultaneously.

[0081] Further, the at least two connected air guiding members 6a are integrally formed. In this way, the processing and forming process of the at least two connected air guiding members 6a is simple, and the assembly process of the air guiding members 6a is simplified. When all of the plurality of air guiding members 6a are connected to each other, the plurality of air guiding members 6a are integrally formed.

[0082] In other embodiments, when there are a plurality of air guiding members 6a, the movement of the air guiding portions 61a of each air guiding member 6a can be independent of each other.

[0083] In some optional embodiments of the present application, the plurality of air guiding members 6a are divided into at least one group, each group including two air guiding members 6a, and the two air guiding members 6a in each group are connected, for example, the two air guiding members 6a in each group can be integrally formed, and the two air guiding members 6a in each group can be arranged opposite to each other along the radial direction of the air outlet 111. In this way, when each group of air guiding members 6a is rotated, rotating one of the air guiding members 6a in each group can make the other air guiding member 6a in each group rotate synchronously, so that the rotation operation of the plurality of air guiding members 6a is simple.

[0084] According to some embodiments of the present application, referring to Figure 7 , the distance between the air outlet 111 and the air guide part 61a is L, and the value of L ranges from 3 to 15 mm. When the distance between the air outlet 111 and the air guide part 61a is less than 3 mm, the air resistance is relatively large, and obvious noise is generated. When the distance between the air outlet 111 and the air guide part 61a is greater than 15 mm, the airflow has already been dispersed, and the air guide part 61a cannot play the air guide effect. Therefore, by setting the distance L between the air outlet 111 and the air guide part 61a to be between 3 and 15 mm, the air guide effect can be achieved, and the air resistance and noise can be reduced.

[0085] According to some embodiments of the present application, referring to Figure 2 , Figure 6 and Figure 7 , the air outlet 111 extends along the circumferential direction of the fan wheel 211, the air outlet 111 blows air along the axial direction of the fan wheel 211, and the outer periphery of the air guide part 61a is located on the side of the outer periphery of the air outlet 111 away from the central axis of the fan wheel 211. Therefore, by locating the outer periphery of the air guide part 61a on the side of the outer periphery of the air outlet 111 away from the central axis of the fan wheel 211, the air guide effect of the air guide part 61a can be ensured.

[0086] Optionally, the projection of the air outlet 111 on a reference surface is an air outlet projection, the projection of the air guide part 61a on the reference surface is an air guide part projection, the distance between the outer periphery of the air outlet projection and the outer periphery of the air guide part projection (which can be the difference between h2 and h1 in Figure 7 ) is not greater than 0.5D, the reference surface is perpendicular to the central axis of the fan wheel 211, and D is the diameter of the fan wheel 211. Therefore, by setting the distance between the outer periphery of the air outlet projection and the outer periphery of the air guide part projection to be not greater than 0.5D, the air resistance and the wind speed loss can be reduced while ensuring the air guide effect of the air guide part 61a.

[0087] According to some embodiments of the present application, referring to Figure 7 , the angle between the end surface of the air outlet 111 and the air guide part 61a is α, and the value of α ranges from 20 to 70°. If the above angle α is too large, the air guide part 61a cannot play the air guide effect. If the above angle α is too small, the airflow loss is too large, the wind speed decays quickly, and the air supply distance is affected. Therefore, by setting the angle α between the end surface of the air outlet 111 and the air guide part 61a to be between 20 and 70°, the airflow loss can be reduced while ensuring the air guide effect of the air guide part 61a, the air supply speed is ensured to be relatively large, and the air supply distance is ensured to be relatively large.

[0088] According to some embodiments of the present application, referring to Figure 1 , Figure 3 ,Figure 5 and Figure 7 The air guide 6a is rotatably arranged on the housing, and when the air guide 6a is rotated, the air guide part 61a moves along the length direction of the air outlet 111. Thus, by rotatably arranging the air guide 6a on the housing, the air guide part 61a can be conveniently moved along the length direction of the air outlet 111. The rotation of the air guide 6a can be automatically driven by a driving mechanism, or manually rotated. When the air guide 6a is manually rotated, the air guide 6a can be positioned at a certain position by the friction between the air guide 6a and the housing, or positioned at a certain position by a positioning member.

[0089] For example, in the example of Figure 3 and Figure 7 , the housing is formed with a matching protrusion 14a, and the air guide 6a is provided with a matching hole 63a which matches the matching protrusion 14a. The rotation of the air guide 6a can be realized by matching the matching hole 63a on the air guide 6a with the matching protrusion 14a on the housing. When the air guide 6a is driven to rotate by a driving mechanism, the driving mechanism can be connected with the air guide 6a. When the air guide 6a is manually rotated, the air guide 6a can be positioned at a certain position by the friction between the outer peripheral wall of the matching protrusion 14a and the inner peripheral wall of the matching hole 63a.

[0090] Optionally, referring to Figure 3 and Figure 7 , the rotation axis of the air guide 6a is collinear with the rotation axis of the fan 211. Thus, the structure of the air duct assembly is simple, compact and symmetrical.

[0091] In other embodiments, the rotation axis of the air guide 6a can also be parallel to and not collinear with the rotation axis of the fan 211, so that the air guide 6a is more flexible to arrange.

[0092] Optionally, referring to Figure 2 and Figure 6 , the air outlet 111 extends along the circumferential direction of the fan 211, the air guide 6a is a plurality of air guides 6a which are arranged along the length direction of the air outlet 111, and the rotation axes of the plurality of air guides 6a are collinear. Thus, the arrangement of the plurality of air guides 6a is more regular, and the structure of the air duct assembly is simple and compact. The rotation of the plurality of air guides 6a can be associated with each other, for example, the plurality of air guides 6a are connected as a whole, and the rotation of one air guide 6a can drive the remaining air guides 6a to rotate synchronously. The rotation of the plurality of air guides 6a can also be independent of each other, for example, when one air guide 6a is rotated, the remaining air guides 6a are not rotated.

[0093] Optionally, referring to Figures 1-3 and Figures 5-7The air guide member 6a comprises a connecting portion 62a connected with the air guide portion 61a, and the connecting portion 62a is rotatably connected with the shell. The front side wall of the shell is recessed towards the back to form a recessed cavity 15a, and the connecting portion 62a is accommodated in the recessed cavity 15a. Thus, the rotation of the air guide member 6a can be conveniently realized through the connecting portion 62a, and the connecting portion 62a is accommodated in the recessed cavity 15a of the shell, so that the air duct assembly has a compact structure and a small volume.

[0094] In some embodiments of the present application, referring to Figures 1-8 The air outlet 111 extends along the circumference of the fan wheel 211 and is annular, and the central axis of the fan wheel 211 extends in the front-rear direction. The air outlet 111 faces forward. The air guide member 6a is two, and the two air guide members 6a are arranged along the circumference of the air outlet 111. Each air guide member 6a comprises an air guide portion 61a and a connecting portion 62a connected with each other. The air guide portion 61a of each air guide member 6a is located downstream of the air outlet 111 and is arranged opposite to the air outlet 111. The connecting portion 62a of each air guide member 6a is rotatably connected with the shell. The two air guide members 6a are integrally formed, and the connecting portions 62a of the two air guide members 6a jointly define a matching hole 63a. A matching protrusion 14a that matches the matching hole 63a is formed on the shell. The air guide member 6a is rotatable around the matching protrusion 14a. The rotation axes of the two air guide members 6a are collinear with the rotation axis of the fan wheel 211. The air guide portions 61a of the two air guide members 6a are each arc-shaped. The lengths of the air guide portions 61a of the two air guide members 6a can be the same. The sum of the central angles of the air guide portions 61a of the two air guide members 6a is less than 360 degrees. For example, the sum of the central angles of the air guide portions 61a of the two air guide members 6a can be 90 degrees, and the central angle of the air guide portion 61a of each air guide member 6a can be 45 degrees. The air guide portion 61a of each air guide member 6a extends forwardly in a direction away from the rotation center of the air guide member 6a.

[0095] Referring to Figure 1 and Figure 2 When the two air guide members 6a are rotated to cover the left and right portions of the air outlet 111 with the air guide portions 61a of the two air guide members 6a, respectively, the left portion of the air outlet 111 faces left and front to blow air, the right portion of the air outlet 111 faces right and front to blow air, and the upper and lower portions of the air outlet 111 face front to blow air.

[0096] Referring to Figure 5 and Figure 6 When the two air guide members 6a are rotated to cover the upper and lower portions of the air outlet 111 with the air guide portions 61a of the two air guide members 6a, respectively, the upper portion of the air outlet 111 faces obliquely upward to blow air, the lower portion of the air outlet 111 faces downwardly and obliquely to blow air, and the left and right portions of the air outlet 111 face front to blow air.

[0097] Referring to Figure 7The air outlet 111 extends along the circumferential direction of the fan wheel 211, and the air outlet 111 blows air along the axial direction of the fan wheel 211. The outer periphery of the air guide part 61a is located on the side of the air outlet 111 away from the central axis of the fan wheel 211. In the cross section of the central axis of the fan wheel 211, the distance between the outer periphery of the air outlet 111 and the central axis of the fan wheel 211 is h1, and the distance between the outer periphery of the air guide part 61a and the central axis of the fan wheel 211 is h2, and h2 is greater than h1, so that the air guide part 61a has a certain air guide effect. Further, the difference between h2 and h1 is not greater than 0.5D, and D is the diameter of the fan wheel 211. Thus, while ensuring that the air guide part 61a has an air guide effect, the air resistance is low and the wind speed loss is small.

[0098] According to some embodiments of the present application, the air outlet extends along the circumferential direction of the fan wheel 211, and the air outlet 111 is annular. The air guide part 61a is a plurality of air guide parts arranged along the circumferential direction of the air outlet 111. At least one air guide part 61a is arranged in the radial direction away from at least a part of the air outlet 111 when the air guide part 61a corresponds to the lower part of the air outlet 111. For example, only one air guide part 61a can be arranged in the radial direction away from at least a part of the air outlet 111 when the air guide part 61a corresponds to the lower part of the air outlet 111. Alternatively, each air guide part 61a can be arranged in the radial direction away from at least a part of the air outlet 111 when the air guide part 61a corresponds to the lower part of the air outlet 111.

[0099] The air guide part 61a can be arranged in the radial direction away from at least a part of the air outlet 111 when the air guide part 61a corresponds to the lower part of the air outlet 111. For example, the air guide part 61a can be arranged in the radial direction away from at least a part of the air outlet 111 when the air guide part 61a corresponds to the lower part of the air outlet 111. Alternatively, each air guide part 61a can be arranged in the radial direction away from at least a part of the air outlet 111 when the air guide part 61a corresponds to the lower part of the air outlet 111.

[0100] Therefore, when at least one air guide 6a is rotated to a position corresponding to the lower part of the air guide 61a and the air outlet 111, since at least a portion of the air guide 61a is offset from at least a portion of the air outlet 111 in the radial direction, the air duct assembly can be used in an air conditioner to ensure good performance in both cooling and heating conditions. For example, when the air conditioner is a portable air conditioner, the overall position of the air outlet 111 is relatively low. Especially when the air conditioner is cooling, the downward air guiding effect of the air guide 6a on the lower part of the air outlet 111 can be reduced, reducing the direct airflow onto the ground and improving the performance of the air conditioner.

[0101] For example, in some specific embodiments of the present invention, the air outlet 111 extends circumferentially along the impeller 211 and is annular. Multiple air guides 6a are arranged circumferentially along the air outlet 111. Each air guide 6a includes a connecting portion 62a connected to the air guide section 61a. The connecting portion 62a is rotatably connected to the housing. The rotation axes of the multiple air guides 6a are all collinear with the central axis of the air outlet 111. The radial lengths of the connecting portions 62a of at least two air guides 6a (the radial length of the connecting portion 62a refers to its length in the radial direction of the air outlet 111) are different. Therefore, when the air duct assembly is used in an air conditioner, the air conditioner can have good performance in both cooling and heating conditions. For example, when the air conditioner is a portable air conditioner, the overall position of the air outlet 111 is relatively low. Especially when the air conditioner is cooling, the air guide 6a with the shortest radial length of the connecting part 62a can be moved so that the air guide part 61a of the air guide 6a corresponds to the lower part of the air outlet 111. This reduces the downward air guiding effect of the air guide 6a on the lower part of the air outlet 111, reduces the airflow blowing directly to the ground, and improves the performance of the air conditioner.

[0102] For example, when there are two air guides 6a, the two air guides 6a are connected and arranged opposite each other in the radial direction of the air outlet 111. The radial lengths of the connecting parts 62a of the two air guides 6a are different, and the radial lengths of the air guide parts 61a of the two air guides 6a are the same. When the air conditioner is cooling, the two air guides 6a can be rotated so that when the two air guides 6a are located in the upper and lower parts of the air outlet 111, the air guide 6a with the shortest radial length of the connecting part 62a can be moved so that the air guide part 61a of the air guide 6a corresponds to the lower part of the air outlet 111, thereby reducing the downward air guiding effect of the air guide 6a on the lower part of the air outlet 111 and reducing the airflow blowing directly to the ground. The air guide part 61a of the other air guide 6a with a relatively larger radial length of the connecting part 62a corresponds to the upper part of the air outlet 111, so that the cold air blows upward and improves the performance of the air conditioner.

[0103] For example, in some other specific embodiments of the present invention, reference is made to... Figure 2 andFigure 6 The air outlet 111 extends along the circumferential direction of the fan wheel 211 and is annular. The air outlet 111 comprises an upper air outlet section 111a and a lower air outlet section 111e connected in sequence. The upper air outlet section 111a is semicircular arc-shaped, and the lower air outlet section 111e is semioval arc-shaped. The long axis of the lower air outlet section 111e extends along the up-down direction, and the long axis of the lower air outlet section 111e is greater than the diameter of the upper air outlet section 111a. The air guide member 6a is arranged in plurality along the circumferential direction of the air outlet 111. The rotation center of each of the plurality of air guide members 6a is arranged concentrically with the center of the upper air outlet section 111a and the center of the lower air outlet section 111e. The radial length of each of the plurality of air guide members 6a is the same. Thus, when the air duct assembly is used in a mobile air conditioner, the overall position of the air outlet 111 is relatively low compared to other types of air conditioners. When any one of the plurality of air guide members 6a rotates to a position corresponding to the lower part of the air outlet 111, the downward air guiding effect of the air guide member 6a on the lower part of the air outlet 111 is weakened, the airflow directly blowing to the ground is reduced, and the performance of the air conditioner is improved.

[0104] Optionally, the diameter of the upper air outlet section 111a can be the same as the minor axis of the lower air outlet section 111e. Thus, the shape of the air outlet 111 is simple and beautiful, and the processing of the air outlet 111 is facilitated.

[0105] For example, when the air guide member 6a is two, the two air guide members 6a are connected and arranged opposite in the radial direction of the air outlet 111. The radial length of the connecting part 62a of the two air guide members 6a is the same, and the radial length of the air guiding part 61a of the two air guide members 6a is the same. When the air conditioner is cooling, the two air guide members 6a can be rotated so that the two air guide members 6a are located in the upper and lower parts of the air outlet 111. When the air guiding part 61a of any one of the air guide members 6a corresponds to the lower part of the air outlet 111, the downward air guiding effect of the air guide member 6a on the lower part of the air outlet 111 is weakened, the airflow directly blowing to the ground is reduced, the air guiding part 61a of the other air guide member 6a corresponds to the upper part of the air outlet 111, the cold air is blown upward, and the performance of the air conditioner is improved.

[0106] In some embodiments of the present application, a guide rail is formed on the shell along the length direction of the air outlet 111. The guide rail can be a guide groove formed on the shell. The guide rail can be arranged on either side of the air outlet 111 in the width direction of the air outlet 111. For example, when the air outlet 111 extends in an arc shape or a ring shape, the guide rail can be arranged on the inner circumferential side of the air outlet 111. The air guide 6a is slidably arranged in the guide rail along the length direction of the guide rail. When the air guide 6a slides along the length direction of the guide rail, the air guide portion 61a moves along the length direction of the air outlet 111. Thus, by arranging the guide rail and slidably arranging the air guide 6a in the guide rail, the air guide portion 61a can be conveniently moved along the length direction of the air outlet 111. The sliding of the air guide 6a can be driven by a driving mechanism, or the sliding of the air guide 6a can be achieved by manual operation. When the sliding of the air guide 6a is achieved by manual operation, the air guide 6a can be positioned at a certain position by friction between the air guide 6a and the guide rail or by a positioning member.

[0107] According to the air conditioner of the second aspect of the present application, the air duct assembly of the first aspect of the present application is arranged in the shell, and the air inlet is formed on the shell. Optionally, the air conditioner can be a mobile air conditioner.

[0108] When the air conditioner is in operation, the motor 212 drives the fan wheel 211 to rotate. Air flows into the shell from the air inlet, enters the shell through the air duct inlet 113, exchanges heat with the heat exchanger 4a, sequentially flows through the accommodating cavity 21a and the rectifying cavity 11a, and is discharged from the air outlet 111 to the indoor environment, so as to improve the indoor temperature. In the process of flowing through the rectifying cavity 11a, the air flow is rectified, so that the air flow is more orderly. After the air flow is rectified by the rectifying cavity 11a, it is discharged from the air outlet 111 in a slit shape to the indoor environment. In the case that the power and the rotating speed of the fan wheel 211 are the same, the air supply distance can be increased, the air supply is farther, a better cooling / heating effect is achieved, and the energy consumption and the noise are lower.

[0109] According to the air conditioner of the present application, by arranging the above-mentioned air duct assembly, the air supply distance of the air conditioner is farther, a better cooling / heating effect is achieved, and the energy consumption and the noise are lower. At the same time, by moving the air guide portion 61a of the air guide 6a, the air outlet direction of different positions of the air outlet 111 can be adjusted, so as to meet more air outlet requirements of the user.

[0110] Optionally, with reference to Figure 3 , Figure 8The heat exchanger 4a of the air conditioner can be flat, thereby making the structure of the heat exchanger 4a simple and easy to manufacture, and ensuring that the heat exchanger 4a has a large heat exchange area, ensuring the heat exchange capacity and heat exchange effect, and making the overall structure of the air conditioner simple and compact. For example, the heat exchanger 4a can be arranged substantially perpendicular to the central axis of the fan wheel 211. When the air conditioner is in operation, the airflow enters the casing from the air inlet and exchanges heat with the flat heat exchanger 4a, and the airflow passes through the heat exchanger 4a and fully exchanges heat with the heat exchanger 4a, so that the airflow and the heat exchanger 4a have a large heat exchange area, ensuring the heat exchange effect.

[0111] For example, in the example of Figure 1 and Figure 3 , the air conditioner is a mobile air conditioner, and the air conditioner comprises an upper air duct system and a lower air duct system arranged vertically, the upper air duct system comprises the air duct assembly and the heat exchanger 4a, and the upper air duct system and the lower air duct system are separated by a partition 5a. The casing comprises a first shell 1a, a second shell 2a and a third shell 3c, which are arranged in sequence along the axial direction of the fan wheel 211, and the first shell 1a, the second shell 2a and the third shell 3c are arranged on the partition 5a. The first shell 1a and the second shell 2a are detachably adjacent, and the second shell 2a and the third shell 3c are connected. For example, the second shell 2a and the third shell 3c can be detachably connected, and the second shell 2a and the third shell 3c can also be integrally formed. The first shell 1a defines a flow regulating cavity 11a, and the front side wall of the first shell 1a forms an air outlet 111. The second shell 2a defines a receiving cavity 21a, and the fan wheel 211 is received in the receiving cavity 21a. The fan wheel 211 is a centrifugal fan wheel, and the rotational axis of the fan wheel 211 extends in the front-rear direction. The third shell 3c defines a heat exchange cavity 31c, and the heat exchanger 4a is received in the heat exchange cavity 31c. The heat exchange cavity 31c communicates with the receiving cavity 21a, and the rear wall of the third shell 3c forms an air duct inlet 113. The casing of the air conditioner forms an air inlet opposite the air duct inlet 113 in the axial direction. The heat exchanger 4a is flat and arranged opposite the air inlet.

[0112] The motor 212 can be arranged on the side of the fan wheel 211 away from the air duct inlet 113, for example, a portion of the wall of the flow regulating cavity 11a protrudes towards the direction away from the fan wheel 211 to form a motor cavity 12a, and the motor 212 is arranged in the motor cavity 12a. The motor 212 can also be arranged on the side of the fan wheel 211 adjacent to the air duct inlet 113, in which case the motor 212 is located between the heat exchanger 4a and the fan wheel 211. The motor 212 can be arranged in the receiving cavity 21a, or the motor 212 can be arranged in the heat exchange cavity 31c, or part of the motor 212 is arranged in the receiving cavity 21a and the other part is arranged in the heat exchange cavity 31c.

[0113] When the air conditioner is working, the air flow enters the heat exchange cavity 31c from the air duct inlet 113, exchanges heat with the heat exchanger 4a, and then flows into the containing cavity 21a, is accelerated by the fan wheel 211, and then flows into the rectifying cavity 11a for rectification, and finally is blown out from the air outlet 111 to the indoor. During the air flow flows through the inside of the air conditioner, the air flow flows from back to front, so that the air flow path is simple and short. In addition, the air outlet 111 is in the form of a slit, so that the air outlet 111 has a large air outlet speed, the air supply distance of the air conditioner is long, and the cooling / heating performance of the air conditioner is improved.

[0114] In addition, the air guide part 61a is moved to a certain position of the air outlet 111 according to needs by rotating or sliding, and the air outlet direction of the air outlet 111 corresponding to the air guide part 61a is adjusted, so that the air outlet 111 can be adjusted according to needs, and more air outlet needs of the user can be met.

[0115] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0116] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0117] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An air duct assembly, characterized by, The application relates to a shell, a fan assembly and at least one air guide piece. The shell comprises a containing cavity and a rectifying cavity which are in communication with each other, a wind channel inlet is formed on the shell and communicates with the containing cavity, a slit-shaped air outlet is formed on the wall of the rectifying cavity which is away from the containing cavity; The fan assembly comprises a fan wheel and a motor for driving the fan wheel to rotate, the fan wheel is arranged in the containing cavity, the containing cavity and the rectifying cavity are arranged in the axial direction of the fan wheel, the air outlet extends along the circumference of the fan wheel and is annular, and the air outlet is downstream of the air guide part. The air guide piece is arranged on the shell, a plurality of air guide pieces are arranged along the circumference of the air outlet, the air guide piece comprises an air guide part which is arranged downstream of the air outlet and opposite to the air outlet, the air guide part is movable along the length direction of the air outlet, the air guide part is arranged rotatably on the shell, when the air guide part is rotated, the air guide part moves along the length direction of the air outlet, and when the air guide part is rotated to a position corresponding to the lower part of the air outlet, at least a part of the air guide part is arranged radially offset from at least a part of the air outlet.

2. The air duct assembly of claim 1, wherein, The sum of the lengths of the air guide parts of all the air guide pieces in the length direction of the air outlet is less than the length of the air outlet.

3. The air duct assembly of claim 1, wherein, The air guide piece is a plurality of air guide pieces which are arranged along the length direction of the air outlet.

4. The air duct assembly of claim 3, wherein, At least two of the plurality of air guide pieces are connected.

5. The air duct assembly of claim 4, wherein, The at least two connected air guide pieces are integrally formed.

6. The air duct assembly of claim 4, wherein, The plurality of air guide pieces are divided into at least one group, each group comprises two air guide pieces, and the two air guide pieces in each group are connected.

7. The air duct assembly of claim 1, wherein, The distance between the air outlet and the air guide part is L, and the value range of the L is 3-15 mm.

8. The air duct assembly of claim 1, wherein, The air outlet extends along the circumference of the fan wheel and the air outlet blows air in the axial direction of the fan wheel, the outer periphery of the air guide part is located on the side of the outer periphery of the air outlet which is away from the central axis of the fan wheel.

9. The air duct assembly of claim 8, wherein, The projection of the air outlet on a reference surface is an air outlet projection, the projection of the air guide part on the reference surface is an air guide part projection, the distance between the outer periphery of the air outlet projection and the outer periphery of the air guide part projection is not greater than 0.5D, the reference surface is perpendicular to the central axis of the fan wheel, and the D is the diameter of the fan wheel.

10. The air duct assembly of claim 1, wherein, The included angle between the end surface of the air outlet and the air guide part ranges from 20 to 70 degrees.

11. The air duct assembly of claim 1, wherein, The rotation axis of the air guide piece is collinear with the rotation axis of the fan wheel.

12. The air duct assembly of claim 1, wherein, The air outlet extends along the circumference of the fan wheel, the air guide piece is a plurality of air guide pieces which are arranged along the length direction of the air outlet, and the rotation axes of the plurality of air guide pieces are collinear.

13. The air duct assembly of claim 1, wherein, The air guide piece comprises a connecting part which is connected with the air guide part, the connecting part is rotatably connected with the shell, the front side wall of the shell is recessed towards the back to form a recessed cavity, and the connecting part is arranged in the recessed cavity.

14. The air duct assembly of claim 1, wherein, The air outlet is circular, each of the air guiding members comprises a connecting portion connected to the air guiding portion, the connecting portion is rotatably connected to the shell, the rotation axes of the air guiding members are collinear with the central axis of the air outlet, and the radial lengths of the connecting portions of the air guiding members are different.

15. The air duct assembly of claim 1, wherein, The air outlet comprises an upper air outlet section and a lower air outlet section connected in sequence, the upper air outlet section is semicircular, the lower air outlet section is semieliptical, the major axis of the lower air outlet section extends in the up-down direction, the major axis of the lower air outlet section is longer than the diameter of the upper air outlet section, the rotation centers of the air guiding members are concentrically arranged with the center of the upper air outlet section and the center of the lower air outlet section, and the radial lengths of the air guiding members are the same.

16. The air duct assembly of claim 1, wherein, The shell is provided with a guide rail extending along the length direction of the air outlet, the air guiding members are slidably arranged on the guide rail along the length direction of the guide rail, and the air guiding portions move along the length direction of the air outlet when the air guiding members slide along the length direction of the guide rail.

17. The air duct assembly of any one of claims 1-16, wherein, The shell comprises a first shell and a second shell connected in sequence, the first shell comprises a first rectifying shell, a second rectifying shell and a baffle, the first rectifying shell is arranged around the outer periphery of the baffle and is connected to the baffle, the baffle is located at one end of the first rectifying shell adjacent to the second shell, the second rectifying shell is arranged around the outer periphery of the first rectifying shell, a support is arranged between the second rectifying shell and the first rectifying shell to space the second rectifying shell and the first rectifying shell apart, the first rectifying shell, the second rectifying shell and the baffle jointly define the rectifying cavity, the second shell is cylindrical and defines the accommodating cavity, and the second rectifying shell is connected to the second shell.

18. The air duct assembly of claim 17, wherein, The side of the rectifying cavity facing the accommodating cavity is open to communicate with the accommodating cavity, the airflow flows out of the wind wheel in the radial direction after flowing through the wind wheel, the airflow changes its flow direction from the radial direction of the wind wheel to the axial direction of the wind wheel during the process of flowing from the accommodating cavity into the rectifying cavity, and the airflow is blown out of the air outlet after flowing through the rectifying cavity.

19. An air conditioner characterized by comprising: The air duct assembly comprises: The air duct assembly according to any one of claims 1-18.

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