Air pipe type air conditioner

Abstract

The utility model discloses an air pipe type air conditioner which comprises a shell, a fan cavity and a heat exchange cavity are defined by the shell, the shell is provided with an air inlet and an air outlet, the air inlet is communicated with the fan cavity, and the air outlet is communicated with the heat exchange cavity; a fan assembly; a heat exchanger; the flow guide part is rotatably arranged in the heat exchange cavity, the flow guide part is located between the air outlet side of the heat exchanger and the air outlet in the air flowing direction, the flow guide part is provided with a first noise reduction structure, the first noise reduction structure comprises a first noise reduction cavity and a first noise reduction hole, and the first noise reduction hole communicates with the first noise reduction cavity and the heat exchange cavity; the air outlet is located in the side portion of the shell, and when the air pipe type air conditioner is in a heating mode, the flow guide piece gradually extends downwards from the heat exchanger to the air outlet. According to the air pipe type air conditioner, the flow direction of the hot air is guided through the flow guiding piece, the flow direction of the hot air can be changed, then the hot air can be guided to the area with the lower position conveniently, the heating effect is improved, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner technical field, specifically, a kind of ducted air conditioner. BACKGROUND

[0002] Since hot air will concentrate in upper area, the ducted air conditioner in the related art cannot effectively heat specified area when heating, and the heating effect is poor. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art is solved.For this purpose, the utility model provides a kind of ducted air conditioner, the ducted air conditioner utilizes flow guide piece to guide the flow direction of hot air, can change the flow direction of hot air, and then it is convenient to guide hot air to the area of lower position, improve heating effect, improve user's use experience.

[0004] The ducted air conditioner according to the utility model embodiment includes: shell, the shell defines the fan cavity and heat exchange cavity arranged in transverse direction, the shell has air inlet and air outlet, the air inlet is communicated with the fan cavity, the air outlet is communicated with the heat exchange cavity;Fan assembly, the fan assembly is located in the fan cavity;Heat exchanger, the heat exchanger is located in the heat exchange cavity;Flow guide piece, the flow guide piece is rotatably located in the heat exchange cavity, in the direction of air flow, the flow guide piece is located between the air outlet side of the heat exchanger and the air outlet, the flow guide piece is equipped with first noise reduction structure, and the first noise reduction structure includes first noise reduction cavity and first noise reduction hole, and the first noise reduction hole is communicated with the first noise reduction cavity and the heat exchange cavity;Wherein, the air outlet is located in the side of the shell, in the heating mode of the ducted air conditioner, the flow guide piece gradually extends downward from the heat exchanger to the air outlet.

[0005] The ducted air conditioner according to the utility model embodiment utilizes flow guide piece to guide the flow direction of hot air, can change the flow direction of hot air, and then it is convenient to guide hot air to the area of lower position, improve heating effect, improve user's use experience.

[0006] In addition, the ducted air conditioner according to the above embodiment of the utility model can also have the following additional technical features:

[0007] According to some embodiments of the utility model, in the initial state of the ducted air conditioner after starting, the flow guide piece extends along horizontal direction.

[0008] According to some embodiments of the utility model, the cross-sectional shape of the flow guide piece is wing type.

[0009] According to some embodiments of the utility model, the length direction of the flow guide piece extends along the length direction of the air outlet, the width direction of the flow guide piece extends from the heat exchanger to the air outlet, and the thickness of the flow guide piece increases first and then decreases in the width direction of the flow guide piece.

[0010] According to some optional embodiments of the utility model, the two sides of the thickness direction of the flow guide piece are respectively provided with a first flow guide surface and a second flow guide surface, and the first flow guide surface and the second flow guide surface both gradually extend downward from the heat exchanger to the air outlet when the duct type air conditioner is in the heating mode, and the first flow guide surface is located above the second flow guide surface.

[0011] According to some specific embodiments of the utility model, the first noise reduction hole is arranged on the first flow guide surface and / or the second flow guide surface.

[0012] According to some specific embodiments of the utility model, there is a gap between the second flow guide surface and the lower edge of the air outlet when the duct type air conditioner is in the heating mode.

[0013] According to some specific embodiments of the utility model, one end of the width direction of the flow guide piece is provided with a first arc surface and the other end is provided with a second arc surface, one end of the first flow guide surface and one end of the second flow guide surface are connected through the first arc surface, and the other end of the first flow guide surface and the other end of the second flow guide surface are connected through the second arc surface; wherein the radius of the first arc surface is greater than the radius of the second arc surface, the first arc surface is close to the air outlet side of the heat exchanger, and the second arc surface is close to the air outlet.

[0014] According to some embodiments of the utility model, the duct type air conditioner further comprises a driving motor, the driving motor is arranged in the shell and connected with the flow guide piece, and is used for driving the flow guide piece to rotate.

[0015] According to some optional embodiments of the utility model, one end of the length direction of the flow guide piece is provided with a connecting column, the connecting column defines a first shaft hole, and the driving motor is inserted and matched with the first shaft hole through a first connecting shaft.

[0016] According to some specific embodiments of the utility model, a first support is arranged in the shell, and the driving motor and the flow guide piece are located on the two sides of the first support; wherein the first support is provided with a through hole, and the connecting column is arranged in the through hole to be inserted and matched with the first connecting shaft.

[0017] According to some embodiments of the present application, the shell is internally provided with a second support, the second support is provided with a second shaft hole, the other end of the length direction of the flow guide is provided with a second connecting shaft, and the second connecting shaft is rotationally matched with the second shaft hole.

[0018] According to some embodiments of the present application, the shell is internally provided with a partition, the partition divides the inner cavity of the shell into the heat exchange cavity and the fan cavity, and the partition defines a communication port.

[0019] According to some optional embodiments of the present application, the volute includes oppositely arranged volute tongues and a first air duct wall, the volute tongues and the first air duct wall are located on the circumferential side of the communication port and are connected with the partition, and the outlet of the air duct is located between the volute tongues and the first air duct wall.

[0020] According to some optional embodiments of the present application, the volute includes a first shell and a second shell, the first shell and the second shell are oppositely arranged and define the air duct therebetween, and the first shell at least partially forms the volute tongue of the volute.

[0021] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of embodiments, taken in conjunction with the accompanying drawings, in which:

[0023] Figure 1 is a structural schematic diagram of a duct type air conditioner according to embodiments of the present application;

[0024] Figure 2is a sectional view of the ducted air conditioner according to the embodiment of the utility model, at this time the flow guide piece extends along the horizontal direction;

[0025] Figure 3 is a sectional view of the ducted air conditioner according to the embodiment of the utility model, at this time the flow guide piece extends downwardly and obliquely;

[0026] Figure 4 is a front view of the ducted air conditioner according to the embodiment of the utility model;

[0027] Figure 5 is Figure 4 a sectional view at A-A;

[0028] Figure 6 is a partial sectional view of the ducted air conditioner according to the embodiment of the utility model;

[0029] Figure 7 is a partial sectional view of the ducted air conditioner according to the embodiment of the utility model;

[0030] Figure 8 is a structural schematic view of the flow guide piece according to the embodiment of the utility model;

[0031] Figure 9 is a top view of the flow guide piece according to the embodiment of the utility model;

[0032] Figure 10 is a bottom view of the flow guide piece according to the embodiment of the utility model;

[0033] Figure 11 is Figure 10 a sectional view at B-B;

[0034] Figure 12 is Figure 10 a sectional view at C-C;

[0035] Figure 13 is a structural exploded view of the flow guide piece according to the embodiment of the utility model;

[0036] Figure 14 is Figure 13 an enlarged view at D;

[0037] Figure 15 is a schematic view showing the principle of the Helmholtz resonator.

[0038] Reference signs: 1, ducted air conditioner;

[0039] 10, shell; 11, fan cavity; 12, heat exchange cavity; 13, air inlet; 14, air outlet; 15, first support; 151, via hole; 16, second support; 161, second shaft hole; 17, partition; 171, communication port; 172, third noise reduction cavity;

[0040] 20. Fan assembly; 21. Volute; 2101. First housing; 2102. Second housing; 211. Air duct; 213. Outlet; 215. Volute tongue; 216. First air duct wall; 22. Fan wheel; 30. Heat exchanger;

[0041] 60. Airflow guide;

[0042] 601, First guide plate; 6011, Limiting protrusion; 6012, First connecting hole; 6013, Fixing post;

[0043] 602. Second guide plate; 6022. Second connecting hole; 6023. Positioning protrusion; 6024. Mounting recess;

[0044] 611. First guide surface; 612. Second guide surface; 621. First arc surface; 622. Second arc surface; 63. Separating rib; 631. First rib; 632. Second rib;

[0045] 641. Slot; 642. Protrusion; 66. Connecting post; 661. First shaft hole; 67. Second connecting shaft;

[0046] 711. First noise reduction cavity; 712. First noise reduction aperture;

[0047] 80. Drive motor; 81. First connecting shaft. Detailed Implementation

[0048] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0049] The following description, with reference to the accompanying drawings, describes a ducted air conditioner according to an embodiment of the present invention.

[0050] like Figures 1-5 As shown, the duct-type air conditioner 1 according to an embodiment of the present utility model includes a housing 10, a fan assembly 20, a heat exchanger 30, and a flow guide 60.

[0051] The shell 10 defines a fan cavity 11 and a heat exchange cavity 12 arranged in the transverse direction, and has an air inlet 13 and an air outlet 14, the air inlet 13 communicates with the fan cavity 11, and the air outlet 14 communicates with the heat exchange cavity 12, the fan assembly 20 is arranged in the fan cavity 11, and the heat exchanger 30 is arranged in the heat exchange cavity 12, the fan assembly 20 can drive external air to enter the fan cavity 11 and the heat exchange cavity 12 from the air inlet 13, and the air flows to a designated area from the air outlet 14 after being heat exchanged by the heat exchanger 30 in the heat exchange cavity 12, so as to cool or heat the designated area.

[0052] The flow guide 60 is rotatably arranged in the heat exchange cavity 12, and is located between the heat exchanger 30 and the air outlet 14 in the air flow direction, so that the flow guide 60 can rotate and change the extension direction of the flow guide 60, and then the flow guide 60 can guide the flow direction of the air heat-exchanged by the heat exchanger 30, so that the air can flow to the designated area in the designated direction along the flow guide 60.

[0053] The air outlet 14 is located on the side of the shell 10, and when the duct type air conditioner 1 is in the heating mode, the flow guide 60 gradually extends downward from the heat exchanger 30 to the air outlet 14, so that the air can flow downward along the flow guide 60.

[0054] Specifically, the hot air has a small density and a tendency to float upward, and the flow guide 60 can make the hot air flow downward, so that the hot air can flow to the lower area, so as to heat the lower area and meet the heating demand.

[0055] The flow guide 60 is provided with a first noise reduction structure, and the first noise reduction structure includes a first noise reduction cavity 711 and a first noise reduction hole 712, the first noise reduction hole 712 communicates the first noise reduction cavity 711 and the heat exchange cavity 12, and the sound waves in the heat exchange cavity 12 can enter the first noise reduction cavity 711 through the first noise reduction hole 712, and the sound waves resonate in the first noise reduction cavity 711 to consume the energy of the sound waves, thereby playing a noise reduction effect.

[0056] Specifically, the first noise reduction structure arranged on the flow guide 60 is close to the air outlet 14 of the duct type air conditioner 1, and the first noise reduction structure can sufficiently reduce the noise transmitted to the outside from the air outlet 14, thereby improving the user experience.

[0057] The first noise reduction hole 712 has a smaller flow area than the first noise reduction cavity 711. When air flows from the first noise reduction hole 712 into the first noise reduction cavity 711, the flow speed of the air in the first noise reduction cavity 711 is much smaller than the flow speed of the air in the central part of the first noise reduction cavity 711, so that a more intense shear flow is formed in the first noise reduction cavity 711, accompanied by unstable disturbance waves. At the same time, if the air column in the first noise reduction hole 712 is disturbed to move into the first noise reduction cavity 711, the gas in the first noise reduction cavity 711 is compressed, the pressure increases, and at this time the air in the first noise reduction hole 712 is blocked and moves outward, and after passing through the equilibrium position, it continues to move outward due to inertia, so that the pressure in the first noise reduction cavity 711 decreases, and then the air column in the first noise reduction hole 712 stops moving outward and moves inward, and the process repeats. When the frequency of the disturbance wave matches the incoming air frequency, resonance occurs, thereby reducing or eliminating noise to achieve the purpose of noise reduction.

[0058] Specifically, when the sound wave resonates in the first noise reduction cavity 711, the sound energy is consumed in three ways.

[0059] First, when the sound wave resonates, the air column moves violently, and the air column rubs against the inner wall of the first noise reduction cavity 711, causing the local sound energy to be converted into heat energy, thereby consuming sound energy.

[0060] Second, the incident sound wave will diffuse at the first noise reduction hole 712, causing the sound wave energy to be dispersed to a wider area, thereby reducing the concentrated propagation of the sound wave and reducing the impact of noise on a specific area.

[0061] Third, when the air in the first noise reduction cavity 711 vibrates, it causes the pressure of the air in the first noise reduction cavity 711 to change, thereby storing energy. This energy storage allows the Helmholtz resonator to continue to vibrate for a period of time after the sound wave stops, prolonging the noise reduction time.

[0062] It should be noted that the resonance frequency of the Helmholtz resonator depends on the geometry and volume of the resonator, so the flow area of the first noise reduction hole 712 and / or the flow area of the first noise reduction cavity 711 can be adjusted according to the noise frequency to be eliminated. That is, the form of cooperation between the first noise reduction hole 712 and the first noise reduction cavity 711 can achieve the purpose of absorbing noise of a specific frequency and reducing noise in the heat exchange cavity 12 to some extent, thereby improving the user experience.

[0063] wherein the noise frequency to be eliminated S is the cross-sectional area of the first noise reduction hole 712, S = πD 2 / 4, V is the volume of the first noise reduction cavity 711, and L is the length of the first noise reduction hole 712 (for details, see Figure 15 ).

[0064] Based on this, in specific examples, the absorption of noise of a specific frequency by the first noise reduction hole 712 and the first noise reduction cavity 711 can be achieved by adjusting the cross-sectional area of the first noise reduction hole 712, the volume of the first noise reduction cavity 711, or the length of the first noise reduction hole 712.

[0065] Therefore, the duct type air conditioner 1 according to the embodiments of the present application guides the flow direction of hot air by the flow guide 60, can change the flow direction of hot air, and then facilitates guiding hot air to a region with a lower position, improves the heating effect, and improves the user experience.

[0066] The duct type air conditioner 1 according to the embodiments of the present application will be described below with reference to the accompanying drawings.

[0067] In some embodiments of the present application, as shown in Figures 1-5 , the duct type air conditioner 1 includes a shell 10, a fan assembly 20, a heat exchanger 30, and a flow guide 60.

[0068] In some embodiments of the present application, as shown in Figure 2 , Figure 3 , in the initial state after the duct type air conditioner 1 is powered on, the flow guide 60 extends in the horizontal direction, and after the duct type air conditioner 1 is started for a period of time, the flow guide 60 can be rotated, and then the extension direction of the flow guide 60 is changed to adjust the direction of the air flowing out of the air outlet 14 according to the requirements.

[0069] In some embodiments of the present application, as shown in Figure 8 , Figure 11 , the cross-sectional shape of the flow guide 60 is wing-shaped, so that when the air flows through the flow guide 60, the resistance of the flow guide 60 to the air can be reduced, and then the influence of the flow guide 60 on the wind speed is reduced to ensure the air volume of the duct type air conditioner 1, so that the air can smoothly flow to the designated area along the flow guide 60.

[0070] In some embodiments of the present application, as shown in Figure 4 , Figure 5 , the length direction of the flow guide 60 extends along the length direction of the air outlet 14, and the width direction of the flow guide 60 extends from the heat exchanger 30 to the air outlet 14 to sufficiently guide the air flowing out of the air outlet 14, so that the air flowing through the heat exchanger 30 can smoothly flow to the designated area along the flow guide 60.

[0071] wherein, as shown in Figure 8 , Figure 11 In the width direction of the flow guide 60, the thickness of the flow guide 60 increases first and then decreases, so that when the air flows along the flow guide 60 to the air outlet 14, the air flows from the thicker area of the flow guide 60 to the thinner area, thereby reducing the resistance of the flow guide 60 to the air and reducing the influence of the flow guide 60 on the air speed, so that the air can flow smoothly along the flow guide 60 to the designated area.

[0072] In some optional embodiments of the present application, as shown in Figures 8-12 The two sides of the thickness direction of the flow guide 60 are respectively provided with a first flow guide surface 611 and a second flow guide surface 612, and in the heating mode of the air pipe type air conditioner 1, the first flow guide surface 611 and the second flow guide surface 612 are gradually extended downward from the heat exchanger 30 to the air outlet 14, and the first flow guide surface 611 is located above the second flow guide surface 612, so that when the air conditioner heats the designated area, the hot air can flow along the first flow guide surface 611 and the second flow guide surface 612 to the lower area, thereby heating the designated area.

[0073] Specifically, the air located on the upper part of the flow guide 60 can flow along the first flow guide surface 611 to the lower area, and the air located on the lower part of the flow guide 60 can flow along the second flow guide surface 612 to the lower area, so as to guide the flow direction of the air flowing through the heat exchanger 30, so that the hot air can flow along the first flow guide surface 611 and the second flow guide surface 612 to the lower area, thereby heating the designated area.

[0074] In some specific embodiments of the present application, as shown in Figure 8 , Figure 9 The first noise reduction hole 712 is arranged on the first flow guide surface 611 and / or the second flow guide surface 612, so that when the air flows along the first flow guide surface 611 and the second flow guide surface 612, the sound waves in the air can smoothly pass through the first noise reduction hole 712 into the first noise reduction cavity 711, so that the sound waves can resonate in the first noise reduction cavity 711, thereby consuming the energy in the sound waves and achieving the noise reduction effect.

[0075] As shown in Figures 8-10 In the present embodiment, the first flow guide surface 611 is located above the second flow guide surface 612, and the first noise reduction hole 712 is arranged on the first flow guide surface 611, so that the sound waves in the heat exchanger cavity 12 and the fan cavity 11 can pass through the first noise reduction hole 712 on the first flow guide surface 611 into the first noise reduction cavity 711, and the sound waves resonate in the first noise reduction cavity 711, thereby consuming the energy in the sound waves and achieving the noise reduction effect.

[0076] In some optional embodiments of the present application, as shown in Figure 3As shown, when the ducted air conditioner 1 is in heating mode, there is a gap between the second guide surface 612 and the lower edge of the air outlet 14 to prevent the guide component 60 from completely blocking the lower part of the air outlet 14, so that air can flow out from the gap between the second guide surface 612 and the lower edge of the air outlet 14, thereby reducing the influence of the guide component 60 on the air volume of the ducted air conditioner 1.

[0077] In some optional embodiments of this utility model, such as Figure 8 As shown, one end of the guide member 60 in the width direction has a first arc surface 621, and the other end of the guide member 60 in the width direction has a second arc surface 622. One end of the first guide surface 611 and one end of the second guide surface 612 are connected by the first arc surface 621, and the other end of the first guide surface 611 and the other end of the second guide surface 612 are connected by the second arc surface 622, so that the ends of the first guide surface 611 and the ends of the second guide surface 612 are connected by an arc. In this way, when air flows along the first guide surface 611 and the second guide surface 612, the resistance encountered by the air at the connection position of the first guide surface 611 and the second guide surface 612 can be reduced, and eddies can be avoided at the connection position of the first guide surface 611 and the second guide surface 612, thereby reducing noise.

[0078] The radius of the first arc surface 621 is larger than that of the second arc surface 622. The first arc surface 621 is closer to the air outlet side of the heat exchanger 30, and the second arc surface 622 is closer to the air outlet 14. The second arc surface 622 with a smaller radius is positioned closer to the air outlet 14. In this way, when the air is guided by the guide member 60, the air flows from the first arc surface 621 to the second arc surface 622. When the air flows along the first guide surface 611 and the second guide surface 612 to the second arc surface 622, the air on both sides of the guide member 60 in the thickness direction flows towards each other, so that the air can converge after flowing through the guide member 60 to concentrate on cooling or heating the designated area, thereby improving the cooling or heating effect of the duct air conditioner 1.

[0079] In some specific embodiments of this utility model, such as Figure 13 As shown, a partition rib 63 is provided between the first guide plate 601 and the second guide plate 602 to divide the space between the first guide plate 601 and the second guide plate 602 into a plurality of first noise reduction cavities 711. Each first noise reduction cavity 711 is connected to the heat exchange cavity 12 through at least one first noise reduction hole 712, so that the sound waves in the heat exchange cavity 12 can enter the first noise reduction cavity 711 through the first noise reduction hole 712, thereby using the plurality of first noise reduction cavities 711 to achieve the effect of noise reduction.

[0080] In some embodiments, the number of the partitioning ribs 63 is multiple, and the multiple partitioning ribs 63 are arranged at intervals in the length direction or the width direction of the flow guide 60,

[0081] In some embodiments, as shown in Figure 13 the multiple partitioning ribs 63 include first ribs 631 and second ribs 632, and the first ribs 631 and the second ribs 632 are arranged in a cross manner to divide the chamber between the first flow guide plate 601 and the second flow guide plate 602 into multiple first noise reduction cavities 711, so that the multiple first noise reduction cavities 711 play a noise reduction effect.

[0082] In some examples, the first ribs 631 extend in the length direction of the flow guide 60, the multiple first ribs 631 are arranged at intervals in the width direction of the flow guide 60, the second ribs 632 extend in the width direction of the flow guide 60, and the multiple second ribs 632 are arranged at intervals in the length direction of the flow guide 60, so that the multiple first ribs 631 and the multiple second ribs 632 divide the chamber between the first flow guide plate 601 and the second flow guide plate 602 into multiple first noise reduction cavities 711, and the multiple first noise reduction cavities 711 play a noise reduction effect.

[0083] In some embodiments, the partitioning ribs 63 are integrally formed with the first flow guide plate 601, so that the number of connection steps is reduced, and the installation difficulty is reduced.

[0084] In some embodiments, by arranging the first noise reduction cavities 711 on the flow guide 60, the noise can be reduced by about 2db without changing the size of the duct type air conditioner 1, without affecting the original structure and performance of the duct type air conditioner 1.

[0085] In some optional embodiments of the utility model, as shown in Figure 13 , Figure 14 one of the first flow guide plate 601 and the second flow guide plate 602 is provided with a clamping groove 641 at one end in the first direction, and the other of the first flow guide plate 601 and the second flow guide plate 602 is provided with a clamping convex 642 extending in the first direction, and the clamping convex 642 cooperates with the clamping groove 641 to facilitate positioning and connecting the first flow guide plate 601 and the second flow guide plate 602 together, and this way of fixing and connecting the first flow guide plate 601 and the second flow guide plate 602 together by using the clamping convex 642 and the clamping groove 641 is relatively simple and convenient to operate.

[0086] In some specific embodiments of the utility model, the number of the clamping grooves 641 is multiple, and the multiple clamping grooves 641 are arranged in the second direction, and the second direction is arranged at an angle with the first direction, so that the first flow guide plate 601 and the second flow guide plate 602 are fixedly connected together by cooperation of the multiple clamping convexes 642 and the multiple clamping grooves 641.

[0087] In some embodiments, the first direction is a width direction of the flow guide 60, and the second direction is a length direction of the flow guide 60.

[0088] As shown in the drawings, Figure 14 In the embodiment, the first flow guide plate 601 defines a plurality of clamping grooves 641 at one end in the width direction, the plurality of clamping grooves 641 are arranged at intervals along the length direction of the first flow guide plate 601, the second flow guide plate 602 is provided with a plurality of clamping protrusions 642 at one end in the width direction, the plurality of clamping protrusions 642 are arranged at intervals along the length direction of the second flow guide plate 602, and the plurality of clamping protrusions 642 are matched with the plurality of clamping grooves 641 one by one to facilitate positioning and connecting the first flow guide plate 601 and the second flow guide plate 602 together.

[0089] In some specific embodiments of the utility model, as shown in the drawings, Figure 13 , Figure 14 The first flow guide plate 601 has a limiting protrusion 6011 extending towards the second flow guide plate 602 at one end in the first direction, the clamping groove 641 is arranged on the limiting protrusion 6011, the first noise reduction hole 712 is arranged on the first flow guide plate 601, and the limiting protrusion 6011 is matched with the edge of the second flow guide plate 602 to ensure the airtightness of the first noise reduction cavity 711 while the clamping groove 641 is matched with the clamping protrusion 642.

[0090] In some optional embodiments of the utility model, as shown in the drawings, Figures 12-14 The first flow guide plate 601 has a first connecting hole 6012, the second flow guide plate 602 has a second connecting hole 6022, the first flow guide plate 601 and the second flow guide plate 602 are connected through a fastener, the fastener extends along a third direction and is arranged through the first connecting hole 6012 and the second connecting hole 6022 to fixedly connect the first flow guide plate 601 and the second flow guide plate 602 together, and the third direction is arranged at an angle with the first direction.

[0091] In some specific embodiments of the utility model, the third direction is a thickness direction of the flow guide 60, the axial directions of the first connecting hole 6012 and the second connecting hole 6022 extend along the thickness direction of the flow guide 60, and the fastener is arranged through the first connecting hole 6012 and the second connecting hole 6022 along the third direction to fixedly connect the first flow guide plate 601 and the second flow guide plate 602 together.

[0092] In some specific embodiments of the utility model, as shown in the drawings, Figure 12 , Figure 14As shown, the first noise reduction hole 712 is arranged on the first guide plate 601, the first guide plate 601 is provided with a fixed column 6013 on the side facing the second guide plate 602, the first connecting hole 6012 is a blind hole and is arranged on the fixed column 6013, and the fastener is matched with the first connecting hole 6012 through the second connecting hole 6022, so as to fixedly connect the first guide plate 601 and the second guide plate 602 together.

[0093] In some embodiments, the first connecting hole 6012 has an internal thread, and the fastener is threadedly connected with the first connecting hole 6012 through the second connecting hole 6022, so as to fixedly connect the first guide plate 601 and the second guide plate 602 together.

[0094] In some embodiments, as shown, Figure 13 the first guide plate 601 and the second guide plate 602 are provided with a partition rib 63, and the partition rib 63 divides the space between the first guide plate 601 and the second guide plate 602 into a plurality of first noise reduction cavities 711.

[0095] Wherein, the peripheral wall of the fixed column 6013 is connected with the partition rib 63, a part of the second guide plate 602 extends towards the first guide plate 601 to form a positioning convex part 6023 on the side of the second guide plate 602 facing the first guide plate 601 and form a mounting recessed part 6024 on the side of the second guide plate 602 away from the first guide plate 601, the positioning convex part 6023 is inserted into the space surrounded by the partition rib 63 and abuts against the fixed column 6013, so as to limit the relative position of the first guide plate 601 and the second guide plate 602, and one end of the fastener is accommodated in the mounting recessed part 6024, so as to avoid the end of the fastener protruding from the second guide surface 612.

[0096] In some examples, as shown, Figure 13 the fastener is a screw, the screw head of the screw is accommodated in the mounting recessed part 6024, so as to avoid the fastener protruding from the second guide surface 612.

[0097] In some optional embodiments of the utility model, as shown, Figure 8 , Figure 12 the fastener is close to the other end of the first guide plate 601 and the second guide plate 602 in the first direction, so that in the width direction, one end of the first guide plate 601 and the second guide plate 602 can be fixed by the cooperation of the clamping convex part 642 and the clamping groove 641, and the other end of the first guide plate 601 and the second guide plate 602 can be fixed by the fastener, and then the first guide plate 601 and the second guide plate 602 are fixedly connected together.

[0098] In some embodiments of the utility model, as shown, Figure 6As shown, the ducted air conditioner 1 further comprises a driving motor 80, which is arranged on the housing 10 and connected with the flow guide 60. The driving motor 80 is used to drive the flow guide 60 to rotate, so as to change the extension direction of the flow guide 60, and then change the direction of the air flowing out of the air outlet 14 according to the requirement by using the flow guide 60, so as to guide the air to the specified position.

[0099] Specifically, by rotating the flow guide 60, the air can be guided to a higher or lower position by using the flow guide 60, so as to cool or heat the specified area and improve the cooling or heating effect.

[0100] In some optional embodiments of the utility model, as shown in Figure 6 , Figure 8 As shown, one end of the length direction of the flow guide 60 is provided with a connecting column 66, the connecting column 66 defines a first shaft hole 661, and the driving motor 80 is inserted and matched with the first shaft hole 661 through a first connecting shaft 81, so as to drive the flow guide 60 to rotate, and then change the extension direction of the flow guide 60 and the direction of the air flowing out of the air outlet 14.

[0101] In some embodiments, as shown in Figure 8 The first shaft hole 661 is a non-circular shaft hole, for example, a triangular shaft hole, a quadrilateral shaft hole, a pentagonal shaft hole or a hexagonal shaft hole, and correspondingly, the projection of the outer periphery of the first connecting shaft 81 on the length direction of the flow guide 60 is a triangle, a quadrilateral, a pentagon or a hexagon, so as to limit the relative rotation of the first connecting shaft 81 and the first shaft hole 661, and then make the driving motor 80 drive the connecting column 66 and the flow guide 60 to rotate smoothly through the first connecting shaft 81, so as to change the extension direction of the flow guide 60 and then change the flow direction of the air at the air outlet 14 by using the flow guide 60.

[0102] Alternatively, the inner peripheral wall of the first shaft hole 661 is a non-cylindrical surface, for example, the inner peripheral wall of the first shaft hole 661 is provided with a notch or a protrusion, and correspondingly, the outer peripheral wall of the first connecting shaft 81 is provided with the protrusion or the notch, so as to limit the relative rotation of the first connecting shaft 81 and the first shaft hole 661, and then make the driving motor 80 drive the connecting column 66 and the flow guide 60 to rotate smoothly through the first connecting shaft 81, so as to change the extension direction of the flow guide 60 and then change the flow direction of the air at the air outlet 14 by using the flow guide 60.

[0103] In some specific embodiments of the utility model, as shown in Figure 6As shown, the first support 15 is arranged in the shell 10, the driving motor 80 and the flow guide 60 are located on two sides of the first support 15, the first support 15 is provided with a through hole 151, the connecting column 66 is arranged in the through hole 151 to be inserted and matched with the first connecting shaft 81, so that the connecting column 66 and the first connecting shaft 81 are matched, and then the driving motor 80 can drive the flow guide 60 to rotate smoothly through the matching of the first connecting shaft 81 and the connecting column 66, so as to change the extension direction of the flow guide 60.

[0104] The connecting column 66 is arranged in the through hole 151 of the first support 15, so that the rotation of the flow guide 60 is supported by the first support 15, and when the flow guide 60 shakes, the inner wall of the through hole 151 can limit the shaking amplitude of the flow guide 60, so as to reduce the collision force of the connecting column 66 on the first connecting shaft 81 and the collision force received by the driving motor 80.

[0105] Specifically, the motor has a transmission gear, and when the transmission gear is impacted, the transmission gear is easy to be damaged. The rotation of the connecting column 66 is supported by the through hole 151, so that when the flow guide 60 and the connecting column 66 shake, the inner wall of the through hole 151 limits the shaking amplitude of the flow guide 60 and the connecting column 66, so as to reduce the impact force of the connecting column 66 transmitted to the first connecting shaft 81 and the impact force received by the transmission gear.

[0106] In some embodiments of the utility model, as shown in Figure 7 The second support 16 is arranged in the shell 10, the support is provided with a second shaft hole 161, the other end of the length direction of the flow guide 60 is provided with a second connecting shaft 67, the second connecting shaft 67 is rotationally matched with the second shaft hole 161, so as to support the rotation of the second connecting shaft 67 and the flow guide 60 by the second support 16, and the shaking amplitude of the second connecting shaft 67 and the flow guide 60 is limited by the inner wall of the second shaft hole 161, so that the flow guide 60 can rotate smoothly, and the noise generated when the flow guide 60 is driven to rotate is reduced.

[0107] In some embodiments of the utility model, as shown in Figure 2 , Figure 3 The divider 17 divides the inner cavity of the shell 10 into the heat exchange cavity 12 and the fan cavity 11, the divider 17 defines a communication port 171, the fan assembly 20 comprises a volute 21 and a fan wheel 22, the volute 21 defines an air duct 211, the fan wheel 22 is rotatably arranged in the air duct 211, the inlet of the air duct 211 is communicated with the fan cavity 11, and the communication port 171 communicates the outlet 213 of the air duct 211 and the heat exchange cavity 12.

[0108] Specifically, when the wind wheel 22 rotates, the wind wheel 22 can drive air to enter the fan cavity 11 from the air inlet 13, the air in the fan cavity 11 enters the air duct 211 from the inlet of the air duct 211, flows to the communication port 171 from the outlet 213 of the air duct 211, flows to the heat exchange cavity 12 through the communication port 171, and flows to the designated area from the air outlet 14 after heat exchange in the heat exchange cavity 12.

[0109] In some embodiments, as shown in Figure 2 the wind wheel 22 is a centrifugal wind wheel, the air inlet 13 is located below the volute 21, the air outlet 14 is located on the front side of the shell 10, the inlet of the air duct 211 is located on one side of the axial direction of the wind wheel 22, and when the wind wheel 22 rotates, the wind wheel 22 drives the air below the air pipe type air conditioner 1 to enter the fan cavity 11 from the air inlet 13, enter the air duct 211 from the inlet of the air duct 211, flow to the heat exchange cavity 12 from the outlet 213 of the air duct 211 along the circumferential direction of the wind wheel 22, and flow to the outside from the air outlet 14 after heat exchange in the heat exchange cavity 12. 12, to cool or heat the designated area.

[0110] In some optional embodiments of the utility model, as shown in Figure 3 the volute 21 includes a volute tongue 215 and a first air duct wall 216 arranged oppositely, the volute tongue 215 and the first air duct wall 216 are located on the circumferential side of the communication port 171 and are connected with the partition 17, the outlet 213 of the air duct 211 is located between the volute tongue 215 and the first air duct wall 216, and the volute tongue 215 and the first air duct wall 216 have the function of guiding air to the communication port 171, so that the air in the air duct 211 can flow through the communication port 171 to reach the heat exchange cavity 12 smoothly, and then flow to the designated area from the air outlet 14 after heat exchange with the heat exchanger 30 in the heat exchange cavity 12.

[0111] In some embodiments, the first air duct wall 216 is adapted to define a second noise reduction cavity, the first air duct wall 216 is provided with a second noise reduction hole, the second noise reduction hole communicates the second noise reduction cavity and the air duct 211, so that the sound waves in the air duct 211 can enter the second noise reduction cavity through the second noise reduction hole, the sound waves can resonate in the second noise reduction cavity, and then consume the energy in the sound waves, so as to achieve the effect of noise reduction.

[0112] Specifically, since the wind wheel 22 sucks air into the air duct 211 when working, and sends out the air after being pressurized by the wind wheel 22, the high-speed rotation of the wind wheel 22 causes the airflow to interact with the airflow that is relatively static behind the wind wheel 22 due to the influence of air molecular viscous friction, forming airflow with vortexes in the downstream area of the wind wheel 22, and these vortexes change and fall off constantly. The pressure at the center of each vortex is lower than the surrounding medium pressure, and when a vortex falls off, a pressure jump occurs in the turbulent airflow, and these jumping pressures propagate outward through the surrounding medium and act on the wind wheel 22. When the pressure pulsation in the turbulent flow contains audible frequency components and is strong enough, noise is radiated, forming turbulent flow noise. At the same time, when the wind wheel 22 rotates, the wind wheel 22 sweeps the air at the adjacent position, and due to the mutual force, the gas medium is affected by the wind wheel 22, generating a periodic pressure field and emitting noise; when the airflow flows through the wind wheel 22, the suction surface and the pressure surface of the trailing edge form a wake zone. In the wake zone, the pressure and velocity of the airflow are much lower than those in the main flow zone. When the wind wheel 22 rotates, the airflow in the outlet 213 area of the air duct 211 has great unevenness. The potential flow field of this unevenness acts periodically on the surrounding obstacles, which produces noise similar to plucking a string to make an object produce sound.

[0113] Therefore, it can be known that when the wind wheel 22 rotates, a large noise will be formed at the outlet 213 of the air duct 211. The second noise reduction cavity is arranged on the first air duct wall 216, so that the sound waves can enter the second noise reduction cavity through the second noise reduction holes on the first air duct wall 216, and resonance occurs in the second noise reduction cavity to consume the energy of the sound waves, thereby reducing the noise.

[0114] The principle of noise reduction at the second noise reduction cavity is the same as the principle of noise reduction at the first noise reduction cavity 711, which will not be described in detail here.

[0115] In some embodiments, as shown in Figure 3 The partition 17 is adapted to define a third noise reduction cavity 172, and the partition 17 is provided with a third noise reduction hole that communicates the third noise reduction cavity 172 and the communication port 171. The third noise reduction hole is arranged close to the first air duct wall 216. The sound waves at the communication port 171 can enter the third noise reduction cavity 172 through the third noise reduction hole, and the sound waves can resonate in the third noise reduction cavity 172 to consume the energy of the sound waves, thereby achieving the effect of noise reduction.

[0116] Specifically, the first air duct wall 216 has a flow guiding effect on the flow direction of the air, so that the third noise reduction hole is arranged close to the first air duct wall 216, and when the air flows along the first air duct wall 216 to the air vent, the sound waves in the air can smoothly pass through the second noise reduction hole on the first air duct wall 216 into the second noise reduction cavity, the sound waves can pass through the third noise reduction hole into the third noise reduction cavity 172, and then the energy of the sound waves is consumed by the second noise reduction cavity and the third noise reduction cavity 172, so that the noise reduction effect is achieved.

[0117] The principle of noise reduction at the third noise reduction cavity 172 is the same as that of noise reduction at the first noise reduction cavity 711, which will not be described in detail here.

[0118] In some optional embodiments of the present application, as shown in Figure 2 、 Figure 3 The volute 21 includes a first shell 2101 and a second shell 2102, the first shell 2101 and the second shell 2102 are oppositely arranged and define an air duct 211 therebetween, so that the fan wheel 22 can be conveniently arranged in the air duct 211, and the first shell 2101 at least partially forms a volute tongue 215 of the volute 21.

[0119] In some embodiments, the first shell 2101 and / or the second shell 2102 are adapted to define a fourth noise reduction cavity, the fourth noise reduction cavity is communicated with the air duct 211 through a fourth noise reduction hole, and the sound waves in the air duct 211 can pass through the fourth noise reduction hole into the fourth noise reduction cavity, and the sound waves can resonate in the fourth noise reduction cavity to consume the energy of the sound waves, thereby achieving the noise reduction effect.

[0120] In some examples, the first shell 2101 is provided with a cover on the outer side, the cover and the first shell 2101 define a fourth noise reduction cavity therebetween, the first shell 2101 is provided with a fourth noise reduction hole, the fourth noise reduction hole communicates the fourth noise reduction cavity and the air duct 211, so that the sound waves in the air duct 211 can pass through the fourth noise reduction hole into the fourth noise reduction cavity, and the sound waves will resonate in the fourth noise reduction cavity to consume the energy of the sound waves, thereby achieving the noise reduction effect.

[0121] In some examples, the first shell 2101 is provided with a cover on the outer side, the cover and the first shell 2101 define a fourth noise reduction cavity therebetween, the first shell 2101 is provided with a fourth noise reduction hole, the fourth noise reduction hole communicates the fourth noise reduction cavity and the air duct 211, so that the sound waves in the air duct 211 can pass through the fourth noise reduction hole into the fourth noise reduction cavity, and the sound waves will resonate in the fourth noise reduction cavity to consume the energy of the sound waves, thereby achieving the noise reduction effect.

[0122] In some embodiments, the second shell 2102 is provided with a cover on the inner side or the outer side, and the cover and the second shell 2102 define a fourth noise reduction cavity.

[0123] In some specific embodiments of the utility model, first shell 2101 and partition 17 are mechanically connected, second shell 2102 is integrally formed with partition 17, so as to facilitate disassembly and installation of first shell 2101 and second shell 2102, and then facilitate the arrangement of wind wheel 22 in air duct 211.

[0124] In some specific embodiments of the utility model, the noise reduction principles of the first noise reduction cavity 711, the second noise reduction cavity, the third noise reduction cavity 172 and the fourth noise reduction cavity are the same, which are collectively referred to as the first noise reduction cavity 711, the second noise reduction cavity, the third noise reduction cavity 172 and the fourth noise reduction cavity, and the first noise reduction hole 712, the second noise reduction hole, the third noise reduction hole and the fourth noise reduction hole are referred to as the noise reduction hole.

[0125] Specifically, the plurality of noise reduction cavities form a complete sound absorption structure, that is, the plurality of first noise reduction cavities 711 form a sound absorption structure, the plurality of second noise reduction cavities form a sound absorption structure, the plurality of third noise reduction cavities 172 form a sound absorption structure, and the plurality of fourth noise reduction cavities form a sound absorption structure.

[0126] Wherein Z HH represents the acoustic impedance of a single noise reduction cavity, and n represents the serial number of the noise reduction cavity. HH satisfies:

[0127]

[0128] Wherein, the volume of the noise reduction cavity is V, the hole cross-sectional area of the single noise reduction hole is S, the surface area of the inner side of the opening side of the noise reduction cavity is S ca , the depth of the noise reduction hole is L, the number of noise reduction holes communicating with a single noise reduction cavity is x, and the thickness of the volute wall is l u .

[0129] j represents the imaginary part of a complex number, j=sqrt(-1), ρ0 is the air density, c0 is the sound speed in air, ω is the noise circular frequency, and η is the air dynamic viscosity.

[0130] A is the surface area of the surface on which the noise reduction cavity is arranged. For example, for the first noise reduction cavity 711, A is the surface area of the surface on which the first noise reduction hole 712 of the flow guide 60 is arranged. For the second noise reduction cavity, A is the surface area of the surface on which the first air duct wall 216 is provided with the second noise reduction cavity; for the third noise reduction cavity 172, A is the surface area of the surface on which the partition 17 is provided with the third noise reduction cavity 172, and for the fourth noise reduction cavity, A is the surface area of the surface on which the first shell 2101 and / or the second shell 2102 is provided with the fourth noise reduction cavity.

[0131] p ca , c ca and k ca represent the density, sound speed and wave number of air in the noise reduction cavity respectively, k ap , Ψ va and Ψ ha represent the wave number, viscosity term and thermal term of the circular ring-shaped narrow hole under narrow acoustic, γ represents the specific heat of air, δ represents the sound mass correction coefficient, and τ represents the sound capacity correction coefficient.

[0132] The normal incidence sound absorption rate a of the sound absorption structure can be calculated by the following formula:

[0133]

[0134] Among them, through data simulation, it can be obtained that for a certain frequency sound, by taking the hole cross-sectional area S of the single noise reduction hole of the noise reduction cavity, the depth L of the noise reduction hole and the number x of the noise reduction holes communicated with the single noise reduction cavity, a larger incident sound absorption rate a can be obtained, and then the effective rate of the noise reduction of the sound absorption structure is higher.

[0135] In addition, the volume V of the noise reduction cavity, the hole cross-sectional area S of the single noise reduction hole, the surface area S ca inside the opening side of the noise reduction cavity and the number x of the noise reduction holes communicated with the single noise reduction cavity can be valued in the following ranges to effectively reduce the noise of 400hz-2000hz.

[0136] 500mm 3 ≤V≦64000mm 3

[0137] 1.44mm 2 ≤S≤100mm 2

[0138] 100mm 2 ≦S ca ≦1600mm 2

[0139] 1≤x≤9

[0140] The values of the thickness l u of the volute wall, the depth L of the noise reduction hole, the volume V of the noise reduction cavity and the hole cross-sectional area S of the single noise reduction hole can follow the following formula to effectively reduce the noise of 400hz-2000hz.

[0141] l u ≦L≦V / S ca *0.5

[0142] Other configurations and operations of the air duct type air conditioner according to the embodiments of the present application are known to those skilled in the art, and thus will not be described in detail herein.

[0143] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features limited as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, "a plurality of" means two or more. In the description of the present application, the first feature "above" or "below" the second feature can include the first and second features in direct contact, or can include the first and second features not in direct contact but in contact through another feature therebetween.

[0144] In the description of the present application, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature.

[0145] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected 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.

[0146] 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 conjunction 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.

[0147] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A ducted air conditioner characterized by comprising: include: The housing defines a fan chamber and a heat exchange chamber arranged in a transverse direction. The housing has an air inlet and an air outlet, the air inlet communicating with the fan chamber and the air outlet communicating with the heat exchange chamber. A fan assembly, wherein the fan assembly is disposed within the fan cavity; A heat exchanger, wherein the heat exchanger is disposed within the heat exchange chamber; A flow guide is rotatably disposed in the heat exchange cavity. In the air flow direction, the flow guide is located between the air outlet side of the heat exchanger and the air outlet. The flow guide is provided with a first noise reduction structure, which includes a first noise reduction cavity and a first noise reduction hole. The first noise reduction hole connects the first noise reduction cavity and the heat exchange cavity. The air outlet is located on the side of the outer casing. When the ducted air conditioner is in heating mode, the air guide extends gradually downward from the heat exchanger to the air outlet.

2. The duct type air conditioner according to claim 1, wherein In the initial state after the ducted air conditioner is turned on, the air guide extends in the horizontal direction.

3. The ducted air conditioner according to claim 1, wherein The cross-sectional shape of the guide element is airfoil.

4. The duct type air conditioner according to claim 1, wherein The length of the guide extends along the length of the air outlet, and the width of the guide extends from the heat exchanger to the air outlet. In the width direction of the guide, the thickness of the guide first increases and then decreases.

5. The ducted air conditioner according to claim 4, wherein The guide member has a first guide surface and a second guide surface on both sides in the thickness direction. When the duct air conditioner is in the heating mode, both the first guide surface and the second guide surface extend gradually downward from the heat exchanger to the air outlet, and the first guide surface is located above the second guide surface.

6. The ducted air conditioner according to claim 5, wherein The first noise reduction hole is disposed on the first guide surface and / or the second guide surface.

7. The ducted air conditioner according to claim 5, wherein When the ducted air conditioner is in the heating mode, there is a gap between the second air guide surface and the lower edge of the air outlet.

8. The ducted air conditioner according to claim 5, wherein The guide has a first arc surface at one end and a second arc surface at the other end in the width direction. One end of the first guide surface and one end of the second guide surface are connected by the first arc surface, and the other end of the first guide surface and the other end of the second guide surface are connected by the second arc surface. Wherein, the radius of the first arc surface is greater than the radius of the second arc surface, the first arc surface is closer to the air outlet side of the heat exchanger and the second arc surface is closer to the air outlet.

9. The ducted air conditioner according to claim 1, wherein It also includes a drive motor, which is located in the housing and connected to the flow guide, and is used to drive the flow guide to rotate.

10. The ducted air conditioner according to claim 9, wherein One end of the guide member along its length is provided with a connecting post, which defines a first shaft hole. The drive motor is inserted into the first shaft hole via a first connecting shaft.

11. The ducted air conditioner according to claim 10, wherein The housing is provided with a first bracket, and the drive motor and the flow guide are located on both sides of the first bracket; The first bracket has a through hole, and the connecting post passes through the through hole to be inserted and engaged with the first connecting shaft.

12. The ducted air conditioner according to claim 1, wherein The outer casing is provided with a second bracket, the second bracket is provided with a second shaft hole, and the other end of the guide member in the length direction is provided with a second connecting shaft, the second connecting shaft and the second shaft hole are rotatably engaged.

13. The ducted air conditioner according to any one of claims 1-12, wherein, The housing is provided with a partition, which divides the inner cavity of the housing into the heat exchange cavity and the fan cavity, and defines a communication port; The fan assembly comprises a volute and a fan wheel, the volute defines an air duct, the fan wheel is rotatably arranged in the air duct, the inlet of the air duct is communicated with the fan cavity, and the communication port is communicated with the outlet of the air duct and the heat exchange cavity.

14. The ducted air conditioner according to claim 13, wherein The volute comprises oppositely arranged volute tongues and a first air duct wall, the volute tongues and the first air duct wall are located at the circumferential side of the communication port and are connected with the partition, and the outlet of the air duct is located between the volute tongues and the first air duct wall. The first air duct wall is adapted to define a second noise reduction cavity, the first air duct wall is provided with a second noise reduction hole, and the second noise reduction hole is communicated with the second noise reduction cavity and the air duct. The partition is adapted to define a third noise reduction cavity, the partition is provided with a third noise reduction hole, the third noise reduction hole is communicated with the third noise reduction cavity and the communication port, and the third noise reduction hole is arranged close to the first air duct wall.

15. The ducted air conditioner according to claim 13, wherein The volute comprises a first shell and a second shell, the first shell and the second shell are oppositely arranged and define the air duct therebetween, and the first shell at least partially forms the volute tongue of the volute; The first shell and / or the second shell are adapted to define a fourth noise reduction cavity, and the fourth noise reduction cavity is communicated with the air duct through a fourth noise reduction hole. The first shell is mechanically connected with the partition, and the second shell is integrally formed with the partition.

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