Air duct structure, duct type air conditioner and air conditioning equipment

Abstract

The invention provides an air duct structure, an air duct machine and air conditioning equipment. The air duct structure comprises an air duct assembly, the air duct assembly is provided with an auxiliary air duct, the auxiliary air duct is provided with an air inlet and an air outlet, and the air inlet is arranged to be capable of communicating with an outlet of a draught fan of the duct type air conditioner so that airflow output by the draught fan can be exhausted through the auxiliary air duct; the air duct assembly is further provided with a water receiving tank located on one side of the auxiliary air duct, the water receiving tank and the auxiliary air duct are arranged in a stacked mode in the depth direction of the water receiving tank and separated from each other, and the water receiving tank can be used for receiving condensate water generated by a heat exchanger of the duct type air conditioner so that the air duct assembly can be used as a water receiving disc of the duct type air conditioner. According to the scheme, the air duct structure has the functions of the auxiliary air duct and the water pan, the auxiliary air duct can serve as a heat preservation layer to restrain cold energy of the water pan from being transmitted to the bottom plate so as to reduce the risk of condensation of the bottom plate, in this way, it can be avoided that heat preservation is conducted on the water pan additionally in a foam or sponge pasting mode, and the heat preservation effect of the scheme is better.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of air conditioning technology, and specifically refers to an air duct structure, an air duct machine, and an air conditioning device. Background Art

[0002] In the related art, the water receiving tray of the air duct machine is in contact with the bottom plate of the housing. In the cooling mode, the temperature of the condensed water in the water receiving tray is relatively low, which will cause the temperature of the bottom plate of the housing to be relatively low. When water vapor in the air encounters the low-temperature bottom plate, it will condense into water on the lower surface of the bottom plate, forming condensation. The condensation dripping on the floor will cause the floor to be dirty or even damaged. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide an air duct structure, an air duct machine, and an air conditioning device, which can reduce the risk of condensation on the bottom plate of the air duct machine.

[0004] An embodiment of this application provides an air duct structure, including an air duct assembly. The air duct assembly is provided with an auxiliary air duct. The auxiliary air duct has an air inlet and an air outlet. The air inlet is arranged to be able to communicate with the outlet of the fan of the air duct machine, so that the air flow output by the fan can be discharged through the auxiliary air duct; and the air duct assembly is also provided with a water receiving groove located on one side of the auxiliary air duct. The water receiving groove is stacked and separated from the auxiliary air duct along the depth direction of the water receiving groove, and can be used to receive the condensed water generated by the heat exchanger of the air duct machine, so that the air duct assembly can also be used as the water receiving tray of the air duct machine.

[0005] The air duct structure provided by the embodiment of this application has the functions of both an auxiliary air duct and a water receiving tray. After applying this air duct structure to the air duct machine, the air duct structure can be located below the heat exchanger and also be used as a water receiving tray. The opening of the water receiving groove faces upward, and the water receiving groove can be used to hold the condensed water dripping from the heat exchanger. The auxiliary air duct is located below the water receiving groove, separating the water receiving groove from the bottom plate of the housing. This can reduce the heat transfer between the water receiving tray and the bottom plate, thereby reducing the risk of condensation on the bottom plate of the air duct machine. Moreover, air can flow in the auxiliary air duct, and the cold air of the water receiving tray can be quickly discharged by using the air flow, thereby further reducing the risk of condensation on the bottom plate. Therefore, the auxiliary air duct can act as a heat insulation layer to inhibit the cold of the water receiving tray from being transmitted to the bottom plate to reduce the risk of condensation on the bottom plate. This can avoid additionally insulating the water receiving tray by means of foam or pasting sponge, and the heat insulation effect of this solution is better.

[0006] Based on the above technical solutions, this application can also be improved as follows.

[0007] In an exemplary embodiment, the water receiving groove is provided with a low-lying portion. The low-lying portion is recessed in the direction close to the auxiliary air duct. The low-lying portion is provided with a drain port, and the drain port is arranged on the side wall of the low-lying portion.

[0008] In an exemplary embodiment, the air inlet is located on a side of the low-lying portion away from the air outlet, and a diversion inclined surface is provided on the bottom wall of the water receiving tank; the diversion inclined surface is located between the air inlet and the low-lying portion and is configured to divert liquid to the low-lying portion; a water retaining rib is provided on the diversion inclined surface, and the water retaining rib is located between an end of the diversion inclined surface close to the air inlet and the air inlet; and / or, a heat conducting layer is provided at the low-lying place.

[0009] In an exemplary embodiment, the air duct assembly includes an air duct partition, an air duct wall plate, and two air duct side plates. The air duct partition and the air duct wall plate are arranged at intervals relative to each other in the depth direction of the water receiving tank; the two air duct side plates are located on both sides of the air duct partition along the length direction of the water receiving tank and are connected to the air duct partition and the air duct wall plate; wherein, the air duct partition, the air duct wall plate, and the two air duct side plates enclose the auxiliary air duct; the two air duct side plates protrude from the air duct partition in a direction away from the auxiliary air duct and enclose the water receiving tank with the air duct partition.

[0010] In an exemplary embodiment, a wind guiding portion is provided at an end of the air duct wall plate away from the air outlet; an end of the wind guiding portion away from the air outlet is located on a side of the air duct partition away from the air outlet and encloses the air inlet with the air duct partition.

[0011] In an exemplary embodiment, the auxiliary air duct is provided with a variable cross-section channel whose flow cross-sectional area gradually decreases along the air flow direction, so that the flow cross-sectional area of the air inlet is larger than that of the air outlet.

[0012] In an exemplary embodiment, the auxiliary air duct includes an air inlet section and an acceleration section. The acceleration section is located on the downstream side of the air inlet section and is communicated with the air inlet section. The variable cross-section channel is arranged in the acceleration section; the air inlet is arranged in the air inlet section; the auxiliary air duct further includes a turning section. The turning section is located on the downstream side of the acceleration section and is communicated with the acceleration section, and the turning section extends obliquely in a direction close to the water receiving tank along the air flow direction. The air outlet is arranged at the end of the turning section.

[0013] In an exemplary embodiment, the air duct structure further includes: an air inlet valve and a first driving member; the air inlet valve is arranged at the air inlet and is configured to control the opening and closing and the opening degree of the air inlet; the first driving member is connected to the air inlet valve and is configured to drive the air inlet valve to move relative to the auxiliary air duct.

[0014] In an exemplary embodiment, the air duct structure further includes: a wind guiding structure disposed at the air outlet and configured to be rotatable relative to the auxiliary air duct to adjust the air outlet direction of the auxiliary air duct.

[0015] In an exemplary embodiment, the wind guiding structure is provided with an air outlet channel communicating with the air outlet.

[0016] In an exemplary embodiment, a limiting shell protrudes at the air outlet, and at least a part of the wind guiding structure is located within the limiting shell and is rotatably engaged with the inner wall surface of the limiting shell.

[0017] In an exemplary embodiment, the inner wall surface of the limiting shell includes a first wall surface and a second wall surface that are relatively spaced apart in the depth direction of the water receiving tank; first arc surfaces are provided at the upstream ends of the first wall surface and the second wall surface, and a second arc surface is provided at the upstream end of the outer wall surface of the wind guiding structure, and the first arc surface is adapted to the second arc surface so that the wind guiding structure can rotate relative to the limiting shell.

[0018] In an exemplary embodiment, a first limiting surface is provided at the downstream end of the first wall surface, and a second limiting surface is provided at the downstream end of the second wall surface; the wind guiding structure is configured to be rotatable between a first position and a second position; based on the wind guiding structure rotating to the first position, the wind guiding structure is in abutting engagement with the first limiting surface; based on the wind guiding structure rotating to the second position, the wind guiding structure is in abutting engagement with the second limiting surface.

[0019] In an exemplary embodiment, the air duct structure further includes: a second driving member connected to the wind guiding structure and configured to drive the wind guiding structure to rotate.

[0020] The embodiment of the present application further provides an air duct machine, including: a housing, a fan chamber and a heat exchange chamber are provided in the housing, and a main air duct is provided in the heat exchange chamber; a heat exchanger, at least partially disposed in the main air duct and configured to perform heat exchange with the air flowing through the main air duct. At least one air duct structure as described in any one of the above embodiments, one of the air duct structures is denoted as the first air duct structure, the first air duct structure is disposed in the heat exchange chamber and is located below the heat exchanger, and the water receiving tank of the first air duct structure faces the heat exchanger to serve as a water receiving tray, and the main air duct and the auxiliary air duct of the first air duct structure are separated from each other and are arranged side by side in the vertical direction; and a fan, at least partially disposed in the fan chamber, and the air outlet end of the fan communicates with the heat exchange chamber and is configured to supply air to the main air duct and the auxiliary air duct.

[0021] In an exemplary embodiment, the blower includes a volute, and a volute tongue is provided at the air outlet end of the volute; the first air duct structure includes an intake valve. Based on the fact that the intake valve of the first air duct structure is in a position where it closes the air inlet of the first air duct structure, the intake valve of the first air duct structure is flush with the volute tongue.

[0022] In an exemplary embodiment, the number of the air duct structures is two. Another air duct structure is denoted as the second air duct structure. The second air duct structure is disposed in the heat exchange chamber and is located above the heat exchanger. Moreover, the water receiving tank of the second air duct structure faces the heat exchanger, and the main air duct and the auxiliary air duct of the second air duct structure are separated from each other and are arranged side by side in the up-down direction.

[0023] In an exemplary embodiment, the blower includes a volute, and a diffuser plate is provided at the air outlet end of the volute; the second air duct structure includes an intake valve. Based on the fact that the intake valve of the second air duct structure is in a position where it closes the air inlet of the second air duct structure, the intake valve of the second air duct structure is flush with the diffuser plate.

[0024] The embodiment of the present application further provides an air conditioning device, including the air duct machine according to any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic cross-sectional structure view of an air duct machine provided by some embodiments of the present application;

[0026] Figure 2 It is a schematic partial cross-sectional structure view of an air duct machine provided by some embodiments of the present application;

[0027] Figure 3 It is a schematic three-dimensional structure view of an air duct structure and a heat exchanger provided by some embodiments of the present application;

[0028] Figure 4 It is a schematic partial cross-sectional structure view of an air duct machine provided by some embodiments of the present application;

[0029] Figure 5 It is a schematic three-dimensional structure view of an air duct structure provided by some embodiments of the present application;

[0030] Figure 6 It is a schematic enlarged partial structure view of a second air duct structure provided by some embodiments of the present application;

[0031] Figure 7 It is a schematic enlarged partial cross-sectional structure view of a second air duct structure provided by some embodiments of the present application;

[0032] Figure 8Schematic cross-sectional structure diagram of an air duct machine provided for some other embodiments of the present application, in which the intake valve is shown in different positions;

[0033] Figure 9 Partial cross-sectional structure diagram of the air duct machine in the first state provided for some embodiments of the present application;

[0034] Figure 10 Partial cross-sectional structure diagram of the air duct machine in the second state provided for some embodiments of the present application;

[0035] Figure 11 Partial cross-sectional structure diagram of the air duct machine in the third state provided for some embodiments of the present application;

[0036] Figure 12 Schematic cross-sectional structure diagram of an air duct machine provided for some other embodiments of the present application;

[0037] Figure 13 For Figure 12 Schematic cross-sectional structure diagram of another state of the air duct machine shown;

[0038] Figure 14 For Figure 13 Schematic diagram of the usage scenario of the air duct shown, in which the dashed arrow on the left side of the air duct machine indicates the air flow output from the auxiliary flow channel, the solid arrow indicates the air flow output from the main air duct, and the solid arrow at the lower left side of the air duct machine indicates the air flow that scatters and falls;

[0039] Figure 15 Schematic structure diagram of the auxiliary air duct provided for some embodiments of the present application.

[0040] In the drawings, the list of components represented by each reference numeral is as follows:

[0041] 1 Housing, 11 Fan chamber, 12 Heat exchange chamber, 121 Main air duct, 122 Auxiliary air duct, 1221 Intake section, 1222 Acceleration section, 1223 Turning section, 1224 Intake port, 1225 Outlet port, 1226 Sub-intake section, 1227 Sub-acceleration section, 1228 Sub-intake port, 1229 Air guiding part, 13 Air duct assembly, 131 Air duct partition, 132 Air duct wall plate, 133 Air duct side plate, 134 Water receiving tank, 1341 Low-lying part, 1342 Drainage port, 1343 Flow guiding slope, 1344 Water blocking rib, 14 Limiting shell, 141 First wall surface, 1411 First limiting surface, 142 Second wall surface, 1421 Second limiting surface, 143 First arc surface, 15 Middle partition, 16 Air outlet flange;

[0042] 2 Fan, 21 Volute, 211 Diffuser plate, 212 Volute tongue, 22 Impeller;

[0043] 3 Heat exchanger; 4 Intake valve;

[0044] 5 Air guide structure, 51 First baffle, 52 Second baffle, 53 First partition, 54 Second partition, 55 Rotating shaft, 551 First engagement part, 56 Air outlet channel, 57 Second arc surface;

[0045] 61 First driving member, 62 Second driving member, 621 Output shaft, 622 Second engagement part;

[0046] 71 First air duct structure, 72 Second air duct structure. Specific embodiments

[0047] The principles and features of the present application will be described below with reference to the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0048] An embodiment of the present application provides an air duct structure, which can be used in an air duct machine. The air duct structure includes an air duct assembly 13, as Figure 5 shown. The air duct assembly 13 is provided with an auxiliary air duct 122, as Figure 1 shown. The auxiliary air duct 122 has an air inlet 1224 and an air outlet 1225, as Figure 8 shown. The air inlet 1224 is arranged to be able to communicate with the outlet of the fan 2 of the air duct machine, so that the air flow output by the fan 2 can be discharged through the auxiliary air duct 122.

[0049] And, as Figure 1 shown, the air duct assembly 13 is also provided with a water receiving tank 134 located on one side of the auxiliary air duct 122. The water receiving tank 134 and the auxiliary air duct 122 are stacked and separated along the depth direction of the water receiving tank 134 (i.e., the up and down direction), and can be used to receive the condensed water generated by the heat exchanger 3 of the air duct machine, so that the air duct assembly 13 can also be used as a water receiving tray of the air duct machine.

[0050] Therefore, the air duct structure provided by the embodiment of the present application combines the functions of the auxiliary air duct 122 and the water receiving tray. After applying this air duct structure to the air duct machine, the air duct structure can be located below the heat exchanger 3 and also be used as a water receiving tray. The opening of the water receiving tank 134 faces upward, and the water receiving tank 134 can be used to hold the condensed water dripping from the heat exchanger 3. The auxiliary air duct 122 is located below the water receiving tank 134, separating the water receiving tank 134 from the bottom plate of the housing 1. Thereby, the heat transfer between the water receiving tray and the bottom plate can be reduced, thus reducing the risk of condensation on the bottom plate of the air duct machine. And, air can flow in the auxiliary air duct 122, and the cold air of the water receiving tray can be quickly discharged by using the air flow, thereby further reducing the risk of condensation on the bottom plate. Therefore, the auxiliary air duct 122 can act as a heat insulation layer to inhibit the cold air of the water receiving tray from transferring to the bottom plate to reduce the risk of condensation on the bottom plate. In this way, it is possible to avoid additionally insulating the water receiving tray by means of foam or pasting sponge, and the heat insulation effect of this solution is better.

[0051] Since the water receiving tank 134 and the auxiliary air duct 122 form a double-layer structure, the air duct structure can also be understood as a water receiving tray with a double-layer structure integrating the auxiliary air duct 122.

[0052] In some exemplary embodiments, the water receiving tank 134 is provided with a low-lying portion 1341. As Figure 4 shown, the low-lying portion 1341 is recessed in the direction close to the auxiliary air duct 122, which facilitates the collection and discharge of condensed water to the low-lying portion 1341 to avoid the accumulation of condensed water in the water receiving tank 134. The low-lying portion 1341 is provided with a drain port 1342. As Figure 3 and Figure 4 shown, the drain port 1342 is provided on the side wall of the low-lying portion 1341, which can prevent the discharged condensed water from entering the auxiliary air duct 122 below the water receiving tank 134. The low-lying portion 1341 can extend along the length direction of the water receiving tray, and the water inlet is located at the end wall in the length direction of the low-lying portion 1341.

[0053] In some exemplary embodiments, the air inlet 1224 is located on the side of the low-lying portion 1341 away from the air outlet 1225, and the bottom wall of the water receiving tank 134 is provided with a diversion inclined surface 1343. As Figure 2 、 Figure 4 shown. The diversion inclined surface 1343 is located between the air inlet 1224 and the low-lying portion 1341, and is configured to drain liquid towards the low-lying portion 1341, facilitating the collection and discharge of condensed water to the low-lying portion 1341 to avoid the accumulation of condensed water in the water receiving tank 134. The diversion inclined surface 1343 is provided with a water retaining rib 1344. As Figure 2 、 Figure 4 shown, the water retaining rib 1344 is located between the end of the diversion inclined surface 1343 close to the air inlet 1224 and the air inlet 1224, which can prevent condensed water from entering the auxiliary air duct 122 through the air inlet 1224 of the auxiliary air duct 122.

[0054] In some exemplary embodiments, a heat conducting layer is provided at the low-lying portion 1341. The material of the heat conducting layer is not limited. For example, it can be a heat conducting metal layer (such as an aluminum layer, a copper layer), etc., which facilitates the rapid transfer of the heat in the water receiving tank 134 to the air flow in the auxiliary air duct 122 to reduce the risk of condensation. On the other hand, it also plays a role in adjusting the temperature of the air flow in the auxiliary air duct 122, making its temperature close to the temperature of the air flow output by the main air duct 121, thereby facilitating the improvement of the temperature uniformity of the air flow output by the air duct machine.

[0055] In some exemplary embodiments, as Figure 4As shown in the figure, the air duct assembly 13 includes an air duct partition 131, an air duct wall panel 132, and two air duct side panels 133. The air duct partition 131 and the air duct wall panel 132 are spaced apart from each other in the depth direction of the water receiving tank 134. The two air duct side panels 133 are located on both sides of the air duct partition 131 along the length direction of the water receiving tank 134, and are connected to the air duct partition 131 and the air duct wall panel 132.

[0056] Among them, the air duct partition 131, the air duct wall panel 132, and the two air duct side panels 133 enclose an auxiliary air duct 122. The two air duct side panels 133 protrude from the air duct partition 131 in a direction away from the auxiliary air duct 122, and enclose a water receiving tank 134 with the air duct partition 131.

[0057] Therefore, by reasonably designing the shapes of the air duct partition 131 and the air duct wall panel 132, the shapes of the water receiving tank 134 and the auxiliary air duct 122 can be adjusted to optimize the performance of the water receiving tray and the performance of the auxiliary air duct 122.

[0058] In some exemplary embodiments, as Figure 4 shown, a wind guiding portion 1229 is provided at one end of the air duct wall panel 132 away from the air outlet 1225. One end of the wind guiding portion 1229 away from the air outlet 1225 is located on the side of the air duct partition 131 away from the air outlet 1225, and encloses an air inlet 1224 with the air duct partition 131. This can increase the position of the air inlet 1224, facilitating the smooth entry of the air flow output by the fan 2 into the auxiliary air duct 122.

[0059] In some exemplary embodiments, as Figure 4 shown, the auxiliary air duct 122 is provided with a variable cross-section channel whose flow cross-sectional area gradually decreases along the air flow direction, so that the flow cross-sectional area of the air inlet 1224 is larger than that of the air outlet 1225. According to the fluid continuity equation, the mass of the fluid passing through the two variable cross-sections per unit time is the same, so the fluid will be accelerated when passing through the contraction channel. According to Bernoulli's equation, the acceleration of the fluid will generate a pressure drop.

[0060] Due to the variable cross-section design of the auxiliary air duct 122, the flow cross-sectional area of the air inlet 1224 is larger than that of the air outlet 1225. Therefore, the auxiliary air duct 122 can output a high-speed air flow, which is beneficial to improving the heat dissipation efficiency of the water receiving tray. Moreover, the high-speed air flow output by the auxiliary air duct 122 can affect the air supply distance of the main air duct 121 of the air duct machine, which is beneficial to increasing the air supply distance of the air duct machine, thereby being beneficial to improving the uniformity of the indoor temperature and improving the user experience.

[0061] In some exemplary embodiments, as Figure 4As shown, the auxiliary air duct 122 includes an intake section 1221 and an acceleration section 1222. The acceleration section 1222 is located on the downstream side of the intake section 1221 and is in communication with the intake section 1221. A variable cross-section channel is provided in the acceleration section 1222. An air inlet 1224 is provided in the intake section 1221. Among them, the acceleration section 1222 can be entirely set as a variable cross-section channel or partially set as a variable cross-section channel.

[0062] In some exemplary embodiments, as Figure 4 shown, the auxiliary air duct 122 further includes a turning section 1223. The turning section 1223 is located on the downstream side of the acceleration section 1222 and is in communication with the acceleration section 1222. And the turning section 1223 extends obliquely in the direction close to the water receiving tank 134 along the air flow direction. An air outlet 1225 is provided at the end of the turning section 1223.

[0063] This facilitates reducing the distance between the air outlet 1225 of the auxiliary air duct 122 and the air outlet of the main air duct 121, which is beneficial to improving the influence of the air flow output by the auxiliary air duct 122 on the air flow output by the main air duct 121. And, this also facilitates introducing the air flow output by the auxiliary air duct 122 into the original air outlet flange 16 without increasing the size of the air outlet flange 16.

[0064] In some exemplary embodiments, as Figure 4 shown, along the air flow direction, the wall surface of the acceleration section 1222 close to the water receiving tank 134 extends obliquely away from the water receiving tank 134, so that the thickness of the acceleration section 1222 in the depth direction of the water receiving tank 134 gradually decreases, which serves to reduce the flow cross-sectional area of the acceleration section 1222 and thus increase the air flow speed. And the wall surface of the acceleration section 1222 far from the water receiving tank 134 can extend linearly in the horizontal direction, with regular structure and convenient installation.

[0065] In some exemplary embodiments, as Figure 4 shown, along the air flow direction, the length of the acceleration section 1222 in the length direction of the water receiving tank 134 gradually increases. In other words, along the air flow direction, the thickness of the acceleration section 1222 gradually decreases but the length gradually increases, and overall the flow cross-sectional area of the acceleration section 1222 still gradually decreases. This is beneficial to reducing wind resistance and avoiding too rapid decrease in air flow pressure to ensure the air flow rate and air flow speed output by the auxiliary air duct 122.

[0066] In the embodiments of the present application, as Figure 1As shown, the depth direction of the water receiving tank 134 is consistent with the height direction of the housing 1 of the air duct machine, which can be denoted as the first direction, i.e., the up and down direction. The length direction of the water receiving tank 134 is consistent with the length direction of the housing 1 of the air duct machine, which can be denoted as the second direction, i.e., the left and right direction. The width direction of the water receiving tank 134 is consistent with the width direction of the housing 1 of the air duct machine, which can be denoted as the third direction, i.e., the front and back direction. The third direction, the second direction, and the first direction are perpendicular to each other in pairs.

[0067] In some exemplary embodiments, the blower 2 includes a plurality of volutes 21 spaced apart along the second direction. A wind wheel 22 is provided in each volute 21, so that the blower 2 can generate a relatively large air volume.

[0068] As Figure 15 shown, the intake section 1221 includes a plurality of sub-intake sections 1226 spaced apart along the second direction. The plurality of sub-intake sections 1226 correspond to the plurality of volutes 21 one by one. The air inlet 1224 includes a plurality of sub-air inlets 1228 spaced apart along the second direction. The plurality of sub-air inlets 1228 are arranged corresponding to the plurality of sub-intake sections 1226 one by one. In this way, the air flow output by each volute 21 can enter the corresponding sub-intake section 1226 through the respective corresponding sub-air inlet 1228, which is beneficial to reducing air flow loss and beneficial to increasing the air flow rate entering the auxiliary air duct 122.

[0069] As Figure 15 shown, the acceleration section 1222 includes a plurality of sub-acceleration sections 1222 spaced apart along the second direction. The plurality of sub-acceleration sections 1222 are in one-to-one communication with the plurality of sub-intake sections 1226. Along the air flow direction, the thickness of each sub-acceleration section 1222 in the first direction gradually decreases, the width in the second direction gradually increases, and the flow cross-sectional area gradually decreases. In this way, the air flow in each sub-acceleration section 1222 can be effectively accelerated to ensure that the air flow finally output by the auxiliary air duct 122 has a relatively high speed.

[0070] Among them, as Figure 15 shown, the sizes and shapes of the plurality of sub-acceleration sections 1222 can be exactly the same, can be completely different, or can be partially different, and can be specifically adjusted according to the distribution form of the plurality of volutes 21. For example: when the distance between two adjacent volutes 21 is relatively large, the inclination degree of the adjacent walls of the corresponding two sub-acceleration sections 1222 can be relatively large; when the distance between two adjacent volutes 21 is relatively small, the inclination degree of the adjacent walls of the corresponding two sub-acceleration sections 1222 can be relatively small.

[0071] In some exemplary embodiments, as Figure 15As shown, the number of turning sections 1223 is one, and the turning section 1223 is connected to a plurality of sub-acceleration sections 1222. Therefore, the airflows output from the plurality of sub-acceleration sections 1222 converge within the turning section 1223 and are then output through the air outlet 1225, which is beneficial to improving the uniformity of the airflow output from the auxiliary air duct 122.

[0072] In some exemplary embodiments, as Figures 1 to 3 shown, the air duct structure further includes: an intake valve 4 and a first driving member 61. The intake valve 4 is disposed at the intake port 1224 and is configured to control the opening and closing as well as the opening degree of the intake port 1224. The first driving member 61 is connected to the intake valve 4 and is configured to drive the intake valve 4 to move relative to the auxiliary air duct 122.

[0073] In this way, when the auxiliary air duct 122 is not needed, the auxiliary air duct 122 can be closed, as Figure 1 and Figure 2 shown. Moreover, by controlling the opening degree of the intake port 1224 (as Figure 8 shown), the flow rate of the airflow entering the auxiliary air duct 122 can be controlled, thereby adjusting the wind speed and flow rate of the air outlet 1225 of the auxiliary air duct 122, being able to adjust the air supply distance of the auxiliary air duct 122, and also being able to adjust the influence on the airflow of the main air duct 121.

[0074] In some exemplary embodiments, a rotating connection portion is provided at one end of the intake valve 4 away from the blower 2. The rotating connection portion is connected to the first driving member 61 and is configured to drive the intake valve 4 to rotate relative to the housing 1 under the drive of the first driving member 61. The first driving member 61 can be, but is not limited to, a stepper motor. The rotating connection portion can be, but is not limited to, a rotating shaft or a shaft hole.

[0075] In this way, when the intake valve 4 is opened, it can play a guiding role for the airflow, facilitating the airflow to enter the auxiliary air duct 122 along the intake valve 4. Moreover, by adjusting the opening angle of the intake valve 4 (as Figure 8 shown), the function of adjusting the opening degree of the intake port 1224 can be achieved, and further the air flow rate entering the auxiliary air duct 122 can be adjusted.

[0076] In some exemplary embodiments, as Figure 3As shown, the first driving member 61 is at least partially located outside the auxiliary air duct 122, which can prevent the first driving member 61 from blocking the airflow of the auxiliary air duct 122, which is beneficial to reducing wind resistance. In addition, the first driving member 61 is located on the side where the input and output pipes of the heat exchanger 3 are located, which is convenient for the routing of the first driving member 61. In addition, the input and output pipes of the heat exchanger 3 are usually staggered with the air outlet flange 16 of the air duct machine, so the first driving member 61 is located on the side where the input and output pipes of the heat exchanger 3 are located, which can also prevent the first driving member 61 from blocking the airflow entering the air outlet flange 16, which is beneficial to reducing wind resistance. It can be that the first driving member 61 and the auxiliary air duct 122 are arranged along the length direction of the water receiving tank 134, and are located on the side where the input and output pipes of the heat exchanger 3 are located.

[0077] In some exemplary embodiments, Figure 1 and Figure 2 As shown, the air duct structure also includes: an air guide structure 5, which is arranged at the air outlet 1225 and is arranged to be able to rotate relative to the auxiliary air duct 122 to adjust the air outlet direction of the auxiliary air duct 122, such as Figures 9 to 11 shown.

[0078] Since a rotatable air guide structure 5 is provided at the air outlet of the auxiliary air duct 122, the air outlet direction of the auxiliary air duct 122 can be adjusted. The airflow output by the auxiliary air duct 122 is located on one side of the airflow output by the main air duct 121, which can more effectively change the flow field on this side of the main air duct 121, thereby more effectively affecting the airflow direction of the main air duct 121 and playing a role in adjusting the air outlet direction of the main air duct 121. As a result, the air outlet of the ducted air conditioner has the ability to adjust the wind direction, and does not need to install a complex 3D panel, which will not affect the interior decoration style.

[0079] The structural form of the air guide structure 5 is not limited, for example, it can be an ordinary single-layer air guide plate.

[0080] In some exemplary embodiments, the air guide structure 5 is provided with an air outlet channel 56 connected to the air outlet 1225, such as Figure 9 shown.

[0081] Setting an air guide plate at the air outlet 1225 can also adjust the air outlet direction, but only the part of the airflow close to the air guide plate can be effectively turned, while the airflow far from the air guide plate cannot be effectively turned, and a large degree of escape will occur. Compared with the above-mentioned solution of setting an air guide plate at the air outlet 1225 to adjust the air outlet direction, the air guide structure 5 of this solution is provided with an air outlet channel 56 connected to the air outlet 1225. The airflow at the air outlet 1225 needs to be discharged through the air outlet channel 56. When the air guide structure 5 rotates, the entire air outlet channel 56 also rotates synchronously, so the airflow in the air outlet channel 56 can also be turned as a whole, and no escape will occur, which is equivalent to playing a good sealing role, so the wind direction adjustment ability is better, which is conducive to accurately controlling the air outlet direction.

[0082] In some exemplary embodiments, a limiting shell 14 protrudes at the air outlet 1225, as Figure 4 shown. The air guiding structure 5 is at least partially located inside the limiting shell 14 and is rotatably matched with the inner wall surface of the limiting shell 14. This helps to avoid air leakage between the air guiding structure 5 and the limiting shell 14, so that the air flow output from the auxiliary air duct 122 is discharged through the air outlet channel 56 as much as possible, facilitating the accurate control of the air outlet direction. Moreover, the limiting shell 14 can limit the air guiding structure 5, which helps to improve the position stability and use reliability of the air guiding structure 5 during use.

[0083] In some exemplary embodiments, the inner wall surface of the limiting shell 14 includes a first wall surface 141 and a second wall surface 142 that are relatively spaced apart along the depth direction of the water receiving tank 134, as Figure 9 shown.

[0084] As Figure 10 and Figure 11 shown, first arc surfaces 143 are provided at the upstream ends of both the first wall surface 141 and the second wall surface 142, and a second arc surface 57 is provided at the upstream end of the outer wall surface of the air guiding structure 5. The first arc surface 143 is adapted to the second arc surface 57 so that the air guiding structure 5 can rotate relative to the limiting shell 14. In the embodiments of the present application, "upstream" and "downstream" are based on the air flow direction.

[0085] This helps to increase the contact area between the air guiding structure 5 and the limiting shell 14, and helps to improve the position stability and use reliability of the air guiding structure 5 during use.

[0086] In some exemplary embodiments, as Figure 10 and Figure 11 shown, a first limiting surface 1411 is provided at the downstream end of the first wall surface 141, and a second limiting surface 1421 is provided at the downstream end of the second wall surface 142. The air guiding structure 5 is arranged to be rotatable between a first position and a second position. Based on the air guiding structure 5 rotating to the first position, the air guiding structure 5 is in abutting cooperation with the first limiting surface 1411, as Figure 11 shown. Based on the air guiding structure 5 rotating to the second position, the air guiding structure 5 is in abutting cooperation with the second limiting surface 1421, as Figure 9 shown.

[0087] Therefore, the first limiting surface 1411 and the second limiting surface 1421 can limit the rotation amplitude of the air guiding structure 5, facilitating the reliable positioning of the air guiding structure 5 at the first position or the second position.

[0088] In some exemplary embodiments, as Figure 8As shown, the second wall surface 142 is located between the first wall surface 141 and the main air duct 121. Therefore, the second wall surface 142 is relatively close to the main air duct 121, while the first wall surface 141 is relatively far from the main air duct 121. The inner wall surface of the air outlet channel 56 extends along a straight line parallel to the central axis of the air outlet channel 56. Therefore, the air outlet channel 56 is a straight channel with a constant flow cross-sectional area, which is convenient for outputting high-speed air flow and avoiding air flow dispersion. The flow cross-sectional area of the air outlet channel 56 is equal to that of the air outlet 1225.

[0089] As Figure 8 shown, along the air flow direction, the first limiting surface 1411 extends obliquely in a straight line away from the second wall surface 142. For example, when the air duct structure is located below the heat exchanger 3, this solution can be adopted, that is, the following first air duct structure 71. Or, along the air flow direction, the first limiting surface 1411 extends along a straight line parallel to the central axis of the air outlet 1225. For example, when the air duct structure is located above the heat exchanger 3, this solution can be adopted, that is, the following second air duct structure 72.

[0090] Along the air flow direction, the second limiting surface 1421 extends obliquely in a straight line away from the first wall surface 141, as Figure 8 shown.

[0091] Therefore, when the air guiding structure 5 rotates to the first position, the air outlet channel 56 is parallel to the first limiting surface 1411, so the air outlet direction of the auxiliary air duct 122 is parallel to the first limiting surface 1411. When the air guiding structure 5 rotates to the second position, the air outlet channel 56 is parallel to the second limiting surface 1421, and the air outlet direction of the auxiliary air duct 122 is parallel to the second limiting surface 1421. However, due to the different positions of the air duct structure, the rotatable range of the air guiding structure 5 is different. For the second air duct structure 72 (located above the heat exchanger 3), since it is generally not necessary to supply air to the ceiling, the first limiting surface 1411 can be set as a horizontal plane. For the first air duct structure 71 (located below the heat exchanger 3), it can supply air upward to disperse the air flow in the main air duct 121 to achieve draft-free air supply. Therefore, the first limiting surface 1411 is set as an upward-inclined inclined plane to expand the air supply range.

[0092] Figures 9 to 11 Schematically shows three working states of the air guiding structure 5 of the first air duct structure 71. Among them, Figure 9 (upward air supply) and Figure 10 (horizontal air supply) working states are suitable for long-distance air supply in the cooling mode or the air supply mode to achieve air flow settlement. Figure 11 (downward air supply) working state is suitable for the heating mode. By forming a negative pressure on the lower side of the air flow output from the main air duct 121 through the high-speed air flow, it drives the air flow downward to achieve hot air sinking.

[0093] In some exemplary embodiments, the air duct machine further includes a second driving member 62, such as Figure 5 and Figure 7 As shown, the second driving member 62 is connected to the air guiding structure 5 and is configured to drive the air guiding structure 5 to rotate relative to the housing 1, so as to automatically adjust the air outlet direction of the auxiliary air duct 122 through a program.

[0094] In some exemplary embodiments, the fan 2 includes a plurality of volutes 21 spaced apart along the length of the water receiving trough 134. A wind wheel 22 is disposed in each volute 21, so that the fan 2 can generate a larger air volume. The fan cavity 11 and the heat exchange cavity 12 are arranged along the third direction.

[0095] The connection part between the second driving member 62 and the air guide structure 5 is staggered with the plurality of volutes 21 in the third direction. This can avoid the connection part between the second driving member 62 and the air guide structure 5 facing the air outlet end of the volute 21 to generate a large wind resistance, thereby helping to reduce wind resistance and increase air output.

[0096] In some exemplary embodiments, the rotation axis of the air guide structure 5 extends along the second direction, so the air guide structure 5 can rotate around its rotation axis toward or away from the main air duct 121 to effectively adjust the airflow direction of the main air duct 121.

[0097] In some exemplary embodiments, the second driving member 62 is at least partially located outside the auxiliary air duct 122 and fixed to the air duct wall plate 132, such as Figure 5 As shown, this can prevent the second driving member 62 from occupying the internal space of the main air duct 121 or the auxiliary air duct 122, which is beneficial to reducing wind resistance.

[0098] In some exemplary embodiments, the air guide structure 5 includes a first baffle 51 and a second baffle 52 that are arranged relatively spaced apart along a first direction. Figure 6 As shown, an air outlet channel 56 is defined between the first baffle plate 51 and the second baffle plate 52. The first baffle plate 51 and the second baffle plate 52 are provided with the second arc surface 57, as shown in FIG. Figure 9 shown.

[0099] like Figure 6As shown, the air guiding structure 5 further includes a first partition 53 and a second partition 54 that are spaced apart and arranged in the air outlet passage 56. A rotating shaft 55 is connected between the first partition 53 and the second partition 54. A first engaging portion 551 is provided on the outer sidewall of the rotating shaft 55. A second engaging portion 622 is provided on the output shaft 621 of the second driving member 62. The output shaft 621 is perpendicular to the rotating shaft 55 and the first engaging portion 551 meshes with the second engaging portion 622. Among them, the first engaging portion 551 can be, but is not limited to, a thread or a rack, and the second engaging portion 622 can be, but is not limited to, a tooth. The second engaging portion 622 and the output shaft 621 can be an integral structure or a split assembly structure (such as Figure 7 shown).

[0100] When the first engaging portion 551 is a thread, as Figure 7 shown, the second driving member 62 can be, but is not limited to, a stepping motor. When the output shaft 621 of the second driving member 62 rotates, it can drive the rotating shaft 55 of the air guiding structure 5 to rotate, and further drive the air guiding structure 5 to rotate. When the first engaging portion 551 is a rack, the second driving member 62 can be, but is not limited to, a linear motor. When the output shaft 621 of the second driving member 62 moves linearly, it can drive the rotating shaft 55 of the air guiding structure 5 to rotate, and further drive the air guiding structure 5 to rotate.

[0101] Of course, the connection manner between the second driving member 62 and the air guiding structure 5 is not limited to the above manner, and other transmission structures can also be provided to achieve indirect connection.

[0102] Such as Figure 1 , Figure 2 , Figure 4 , Figure 8 , Figure 12 shown, an air duct machine is further provided in an embodiment of the present application, including: a housing 1, a heat exchanger 3, at least one of the above air duct structures, and a fan 2.

[0103] Among them, a fan cavity 11 and a heat exchange cavity 12 are provided in the housing 1, and a main air duct 121 is provided in the heat exchange cavity 12.

[0104] At least a part of the heat exchanger 3 is arranged in the main air duct 121 and is configured to perform heat exchange with the air flowing through the main air duct 121.

[0105] At least a part of the fan 2 is arranged in the fan cavity 11, and the air outlet end of the fan 2 communicates with the heat exchange cavity 12 and is configured to send air to the main air duct 121 and the auxiliary air duct 122.

[0106] One of the air duct structures is denoted as the first air duct structure 71. The first air duct structure 71 is arranged in the heat exchange chamber 12 and is located below the heat exchanger 3. Moreover, the water receiving tank 134 of the first air duct structure 71 faces the heat exchanger 3 and is used as a water receiving tray at the same time. The main air duct 121 and the auxiliary air duct 122 of the first air duct structure 71 are separated from each other and are arranged side by side in the vertical direction.

[0107] A middle partition 15 may be provided in the housing 1, as Figure 1 shown. The middle partition 15 divides the internal space of the housing 1 into a fan chamber 11 and a heat exchange chamber 12. The air outlet end of the fan 2 may penetrate through the middle partition 15 to communicate with the heat exchange chamber 12. The housing 1 is provided with an air inlet communicating with the fan chamber 11, and the air inlet is for indoor air to enter the fan chamber 11. The housing 1 is provided with an air outlet communicating with the main air duct 121, and the air outlet is for the air flow in the main air duct 121 to be discharged into the indoor space. The air inlet end of the main air duct 121 is directly communicated with the output end of the fan 2, and the air flow output by the fan 2 enters the main air duct 121, exchanges heat with the heat exchanger 3, and then is discharged into the indoor space through the air outlet. The housing 1 may be provided with an air outlet flange 16, and the air flows output from the air inlet 1224 and the air outlet are output into the indoor space through the air outlet flange 16, as Figure 1 shown.

[0108] The air duct machine provided by the embodiment of the present application includes the air duct structure in any one of the above embodiments, so it has all the above beneficial effects and will not be elaborated here.

[0109] In addition, the auxiliary air duct 122 of the first air duct structure 71 is located below the main air duct 121. Since the contact area between the air flow in the auxiliary air duct 122 and the heat exchanger 3 of the air duct machine is small (or there is no contact), the temperature of the air flow output from the auxiliary air duct 122 will be higher than the temperature of the air flow output from the main air duct 121 of the air duct machine in the cooling mode. Therefore, the floating effect of the high-temperature air flow output from the auxiliary air duct 122 can be used to inhibit the sinking of the low-temperature air flow output from the main air duct 121, promoting the cold air to be transported to a farther distance and improving the problem that the cold air of the air duct machine blows directly on people. Moreover, by adjusting the air intake volume of the auxiliary air duct 122, the air supply distance can be adjusted, and then the cold air landing point can be adjusted, which is beneficial to meeting different needs of users.

[0110] Among them, the heat exchanger 3 can be set as a bent heat exchanger 3, such as a heat exchanger 3 that is bent up and down twice to form a V shape (as Figure 1 , Figure 2 , Figure 4 shown). Of course, it can also be set as a heat exchanger 3 with one bend (as Figure 12 shown) or a heat exchanger 3 with other shapes.

[0111] In some exemplary embodiments, the air blower 2 includes a volute 21, and a volute tongue 212 is provided at the air outlet end of the volute 21. The first air duct structure 71 includes an intake valve 4. Based on the intake valve 4 of the first air duct structure 71 being in a position where it closes the air inlet 1224 of the first air duct structure 71, the intake valve 4 of the first air duct structure 71 is flush with the volute tongue 212, as Figure 1 shown.

[0112] In this way, when the auxiliary air duct 122 of the first air duct structure 71 is not needed, the auxiliary air duct 122 can be closed, and the auxiliary air duct 122 and the intake valve 4 will not cause resistance to the air flow in the main air duct 121.

[0113] In some exemplary embodiments, as Figure 13 shown, the number of air duct structures is two. The other air duct structure is denoted as the second air duct structure 72. The second air duct structure 72 is provided in the heat exchange chamber 12 and is located above the heat exchanger 3, and the water receiving tank 134 of the second air duct structure 72 faces the heat exchanger 3. The main air duct 121 and the auxiliary air duct 122 of the second air duct structure 72 are separated from each other and are arranged side by side in the up-down direction.

[0114] In this way, an auxiliary air duct 122 is also provided above the main air duct 121. When the upper auxiliary air duct 122 is opened alone, since the contact area between the air flow in the auxiliary air duct 122 and the heat exchanger 3 is small (or there is no contact), the temperature of the air flow output by the upper auxiliary air duct 122 will be lower than the temperature of the air flow output by the main air duct 121 in the heating mode. Therefore, the sinking effect of the low-temperature air flow output by the upper auxiliary air duct 122 can be used to press down the high-temperature air flow output by the main air duct 121, so as to make the hot air fall to the ground and improve the problem that it is difficult for the hot air of the air duct machine to reach the ground.

[0115] Among them, one side of the upper and lower auxiliary air ducts 122 can be opened alone, or both can be opened together, which is convenient to customize the appropriate air flow direction according to different modes and different scenarios to optimize the user experience. For example: In the heating mode: the upper auxiliary air duct 122 can be opened, and the upper auxiliary air duct 122 outputs a high-speed air flow obliquely downward to make the hot air fall to the ground and improve the problem that it is difficult for the hot air of the air duct machine to reach the ground. In the cooling mode, the lower auxiliary air duct 122 can be opened, and the lower auxiliary air duct 122 outputs a high-speed air flow horizontally. The floating effect of the high-temperature air flow output by the lower auxiliary air duct 122 is used to inhibit the sinking of the low-temperature air flow output by the main air duct 121, so as to make the cold air be transported to a farther distance and improve the problem that the cold air of the air duct machine blows directly on people. Of course, when the air duct machine is used, it is not limited to the above two application scenarios, and there can be more application scenarios, which will not be listed one by one here.

[0116] Moreover, auxiliary air ducts 122 are provided on both the upper and lower sides of the main air duct 121. Thus, high-speed airflows can be output from both the upper and lower sides of the main air duct 121, while a low-speed airflow is output from the middle main air duct 121. The high-speed airflows on both the upper and lower sides can effectively control the direction and landing point of the overall airflow of the machine, with a wider adjustment range and higher comfort. In addition, the air guiding structures 5 of the auxiliary air ducts 122 on both the upper and lower sides can be rotated to the angle where the airflows cross (i.e., the auxiliary air duct 122 on the upper side blows air obliquely downward, and the auxiliary air duct 122 on the lower side blows air obliquely upward), as Figure 14 shown, high-speed airflow collisions can be achieved at the top of the room. In this way, in the cooling mode, the high-speed airflows on the upper and lower sides can be used to collide and disperse the cold air, achieving the effect of curtain settlement cooling and a cool feeling without wind in the cooling process.

[0117] Furthermore, since both of the two air duct structures can also be used as water receiving trays, the up-and-down direction of the housing 1 can be reversed during installation. Thus, two installation methods of the air duct machine can be realized, with a wider range of applicable scenarios. The installation positions of the electronic control modules can also be reversed up and down, and can be installed on both the upper and lower sides, making after-sales maintenance more convenient.

[0118] The auxiliary air ducts 122 on both the upper and lower sides can also provide better heat preservation for the overall machine, making it less likely for the housing 1 to generate condensation.

[0119] In some exemplary embodiments, the fan 2 includes a volute 21, and a diffuser plate 211 is provided at the air outlet end of the volute 21. The second air duct structure 72 includes an intake valve 4. Based on the intake valve 4 of the second air duct structure 72 being in the position of closing the air inlet 1224 of the second air duct structure 72, the intake valve 4 of the second air duct structure 72 is flush with the diffuser plate 211, as Figure 13 shown.

[0120] In this way, when the auxiliary air duct 122 of the second air duct structure 72 is not needed, the auxiliary air duct 122 can be closed, and the auxiliary air duct 122 and the intake valve 4 will not generate resistance to the airflow in the main air duct 121.

[0121] In some exemplary embodiments, the air duct machine further includes a health module (not shown in the figure), which is provided at the air outlet 1225 and is configured to cause the auxiliary air duct 122 to release health factors outward, facilitating the release of more health factors into the indoor space by the high-speed airflow output from the auxiliary air duct 122 to improve the indoor air quality.

[0122] Among them, the health module can be, but is not limited to, a plasma generator, a negative ion generator, etc. The health factors can include, but are not limited to, negative ions, plasma, free radicals, strongly oxidizing active substances, etc.

[0123] An embodiment of the present application also provides an air conditioning device, which includes the air duct machine in any one of the above embodiments, and thus has all the above beneficial effects, which will not be elaborated herein.

[0124] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0125] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0126] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0127] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0128] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. 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 this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0129] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. An air duct structure, characterized in that, It includes an air duct assembly. The air duct assembly is provided with an auxiliary air duct which has an air inlet and an air outlet. The air inlet is arranged to be able to communicate with the outlet of the fan of the air duct machine, so that the air flow output by the fan can be discharged through the auxiliary air duct. And the air duct assembly is also provided with a water receiving trough located on one side of the auxiliary air duct. The water receiving trough and the auxiliary air duct are stacked and spaced apart along the depth direction of the water receiving trough, and can be used to receive the condensed water generated by the heat exchanger of the air duct machine, so that the air duct assembly can also be used as the water receiving tray of the air duct machine.

2. The air duct structure according to claim 1, wherein The water receiving trough is provided with a low-lying part which is recessed towards the direction close to the auxiliary air duct. The low-lying part is provided with a drain port which is arranged on the side wall of the low-lying part.

3. The air duct structure according to claim 2, characterized in that, The air inlet is located on the side of the low-lying part away from the air outlet. The bottom wall of the water receiving trough is provided with a diversion slope. The diversion slope is located between the air inlet and the low-lying part and is arranged to drain liquid towards the low-lying part. The diversion slope is provided with a water retaining rib which is located between the end of the diversion slope close to the air inlet and the air inlet. And / or The low-lying part is provided with a heat conduction layer.

4. The air duct structure according to any one of claims 1 to 3, characterized in that, The air duct assembly includes an air duct partition board, an air duct wall board and two air duct side boards. The air duct partition board and the air duct wall board are relatively spaced apart along the depth direction of the water receiving trough. The two air duct side boards are located on both sides of the air duct partition board along the length direction of the water receiving trough and are connected to the air duct partition board and the air duct wall board. Among them, the air duct partition board, the air duct wall board and the two air duct side boards enclose the auxiliary air duct. The two air duct side boards protrude from the air duct partition board towards the direction away from the auxiliary air duct and enclose the water receiving trough with the air duct partition board.

5. The air duct structure according to claim 4, characterized in that, One end of the air duct wall board away from the air outlet is provided with a wind guiding part. One end of the wind guiding part away from the air outlet is located on the side of the air duct partition board away from the air outlet and encloses the air inlet with the air duct partition board.

6. The air duct structure according to any one of claims 1 to 3, characterized in that The auxiliary air duct is provided with a variable cross-section channel with a gradually decreasing flow cross-section area along the air flow direction, so that the flow cross-section area of the air inlet is larger than that of the air outlet.

7. The air duct structure according to claim 6, characterized in that, The auxiliary air duct includes an air inlet section and an acceleration section. The acceleration section is located on the downstream side of the air inlet section and is connected to the air inlet section. The variable cross-section channel is arranged in the acceleration section. The air inlet is arranged in the air inlet section. The auxiliary air duct further includes a turning section. The turning section is located on the downstream side of the acceleration section and is connected to the acceleration section. And the turning section extends obliquely towards the direction close to the water receiving trough along the air flow direction. The air outlet is arranged at the end of the turning section.

8. The air duct structure according to any one of claims 1 to 3, characterized in that It further includes: An air inlet valve and a first driving member. The air inlet valve is arranged at the air inlet and is configured to control the opening and closing and the opening degree of the air inlet. The first driving member is connected to the air inlet valve and is configured to drive the air inlet valve to move relative to the auxiliary air duct.

9. The air duct structure according to any one of claims 1 to 3, characterized in that, It further includes: A wind guiding structure which is arranged at the air outlet and is configured to be able to rotate relative to the auxiliary air duct to adjust the air outlet direction of the auxiliary air duct.

10. The air duct structure according to claim 9, characterized in that The air guiding structure is provided with an air outlet channel communicating with the air outlet.

11. The air duct structure according to claim 10, wherein, A limiting shell protrudes at the air outlet, and at least a part of the air guiding structure is located in the limiting shell and is rotatably matched with the inner wall surface of the limiting shell.

12. The air duct structure according to claim 11, wherein, The inner wall surface of the limiting shell includes a first wall surface and a second wall surface that are relatively spaced apart along the depth direction of the water receiving tank; First arc surfaces are provided at the upstream ends of the first wall surface and the second wall surface, and a second arc surface is provided at the upstream end of the outer wall surface of the air guiding structure. The first arc surface is adapted to the second arc surface so that the air guiding structure can rotate relative to the limiting shell.

13. The air duct structure according to claim 12, characterized in that, A first limiting surface is provided at the downstream end of the first wall surface, and a second limiting surface is provided at the downstream end of the second wall surface; the air guiding structure is arranged to be able to rotate between a first position and a second position; Based on the air guiding structure rotating to the first position, the air guiding structure is in abutting fit with the first limiting surface; Based on the air guiding structure rotating to the second position, the air guiding structure is in abutting fit with the second limiting surface.

14. The air duct structure according to claim 10, wherein, Further comprising: A second driving member, connected to the air guiding structure and arranged to drive the air guiding structure to rotate.

15. An air duct machine, characterized in that, Comprising: A housing, in which a fan chamber and a heat exchange chamber are provided, and a main air duct is provided in the heat exchange chamber; A heat exchanger, at least partially arranged in the main air duct and arranged to perform heat exchange with the air flowing through the main air duct; At least one air duct structure according to any one of claims 1 to 14, one of the air duct structures is denoted as the first air duct structure, the first air duct structure is arranged in the heat exchange chamber and is located below the heat exchanger, and the water receiving tank of the first air duct structure faces the heat exchanger to be used as a water receiving tray, and the main air duct and the auxiliary air duct of the first air duct structure are separated from each other and are arranged side by side in the up-down direction; And A fan, at least partially arranged in the fan chamber, and the air outlet end of the fan communicates with the heat exchange chamber and is arranged to supply air to the main air duct and the auxiliary air duct.

16. The air duct machine according to claim 15, characterized in that, The fan includes a volute, and a volute tongue is provided at the air outlet end of the volute; the first air duct structure includes an intake valve. Based on the intake valve of the first air duct structure being in a position where it closes the air inlet of the first air duct structure, the intake valve of the first air duct structure is flush with the volute tongue.

17. The air duct machine according to claim 15, characterized in that, The number of the air duct structures is two, and the other air duct structure is denoted as the second air duct structure. The second air duct structure is arranged in the heat exchange chamber and is located above the heat exchanger, and the water receiving tank of the second air duct structure faces the heat exchanger, and the main air duct and the auxiliary air duct of the second air duct structure are separated from each other and are arranged side by side in the up-down direction.

18. The air duct machine according to claim 17, characterized in that, The fan includes a volute, and a diffuser plate is provided at the air outlet end of the volute; the second air duct structure includes an intake valve. Based on the intake valve of the second air duct structure being in a position where it closes the air inlet of the second air duct structure, the intake valve of the second air duct structure is flush with the diffuser plate.

19. An air conditioning device, characterized in that, Including an air duct machine according to any one of claims 15 to 18.

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