Ducted air conditioner and air conditioning equipment

Abstract

The invention provides a duct type air conditioner and air conditioning equipment. The duct type air conditioner comprises a shell provided with a fan cavity and a heat exchange cavity, the heat exchange cavity is internally provided with a main air duct and an auxiliary air duct which are separated from each other and arranged in parallel in the first direction, and the auxiliary air duct is provided with an air inlet and an air outlet; the auxiliary air duct is provided with a variable cross-section channel of which the circulation cross-section area is gradually reduced in the airflow direction, so that the circulation cross-section area of the air inlet is larger than that of the air outlet; at least part of the fan is arranged in the fan cavity, the air outlet end of the fan communicates with the heat exchange cavity, and the fan is arranged to supply air to the main air duct and the auxiliary air duct; and the heat exchanger is at least partially arranged in the main air duct and is arranged to exchange heat with the air flow flowing through the main air duct. Due to the fact that the auxiliary air channel has the variable cross-section design, the circulation sectional area of the air inlet is larger than that of the air outlet, the auxiliary air channel can output high-speed airflow, the air supply distance of the duct type air conditioner can be increased, the uniformity of the indoor temperature can be improved, and the use experience of a user can be improved.

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 machine and an air conditioning device. Background Art

[0002] For traditional air duct machines, the air supply distance is relatively small, resulting in poor uniformity of indoor temperature and bringing an unpleasant user experience. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide an air duct machine and an air conditioning device, which are beneficial to increasing the air supply distance of the air duct machine and improving the uniformity of indoor temperature, thereby being beneficial to improving the user experience.

[0004] An embodiment of this application provides an air duct machine, including: a housing, a blower chamber and a heat exchange chamber are arranged in the housing, a main air duct and an auxiliary air duct which are separated from each other and arranged side by side along a first direction are arranged in the heat exchange chamber, and the auxiliary air duct has an air inlet and an air outlet; a variable cross-section channel with a gradually decreasing flow cross-section area along the air flow direction is arranged in the auxiliary air duct, so that the flow cross-section area of the air inlet is larger than that of the air outlet; a blower, at least part of which is arranged in the blower chamber, and the air outlet end of the blower is communicated with the heat exchange chamber and is configured to supply air to the main air duct and the auxiliary air duct; and a heat exchanger, at least part of which is arranged in the main air duct and is configured to perform heat exchange with the air flowing through the main air duct.

[0005] For the air duct machine provided by the embodiment of this application, on the basis of the main air duct, an auxiliary air duct is additionally provided. Since the auxiliary air duct has a variable cross-section design such that the flow cross-section area of the air inlet is larger than that of the air outlet, the auxiliary air duct can output high-speed air flow, which is beneficial to increasing the air supply distance of the air duct machine, thereby being beneficial to improving the uniformity of indoor temperature and being beneficial to improving the user experience.

[0006] Moreover, the air flow output by the auxiliary air duct is located on one side of the air flow output by the main air duct, which can change the flow field on this side of the main air duct, thereby being able to affect the air flow direction of the main air duct and playing a role in adjusting the air outlet direction of the main air duct. In this way, by reasonably arranging the relative positions of the auxiliary air duct and the main air duct, the air outlet of the main air duct can bring a better user experience to the user. For example: setting the auxiliary air duct above the main air duct can use the air flow of the auxiliary air duct to press down the air flow of the main air duct to improve the problem that hot air is difficult to reach the ground in the heating mode.

[0007] Based on the above technical solution, the following improvements can be made to this application.

[0008] In an exemplary embodiment, the auxiliary air duct includes an air intake section and an acceleration section. The acceleration section is located on the downstream side of the air intake section and is in communication with the air intake section. The variable cross-section channel is provided in the acceleration section. The air intake section is arranged offset from the output end of the fan along the first direction, and the air inlet is provided on the wall surface of the air intake section close to the main air duct.

[0009] In an exemplary embodiment, the auxiliary air duct further includes a turning section. The turning section is located on the downstream side of the acceleration section and is in communication with the acceleration section. The turning section extends obliquely in a direction approaching the main air duct along the air flow direction, and the air outlet is provided at the end of the turning section.

[0010] In an exemplary embodiment, along the air flow direction, the wall surface of the acceleration section close to the main air duct extends obliquely away from the main air duct, so that the thickness of the acceleration section along the first direction gradually decreases.

[0011] In an exemplary embodiment, along the air flow direction, the length of the acceleration section along the second direction gradually increases. The second direction is perpendicular to the first direction and perpendicular to the air flow direction.

[0012] In an exemplary embodiment, the fan includes a plurality of volutes arranged at intervals along the second direction. The air intake section includes a plurality of sub-air intake sections arranged at intervals along the second direction. The plurality of sub-air intake sections correspond to the plurality of volutes one by one. The air inlet includes a plurality of sub-air inlets arranged at intervals along the second direction. The plurality of sub-air inlets are arranged corresponding to the plurality of sub-air intake sections one by one. The acceleration section includes a plurality of sub-acceleration sections arranged at intervals along the second direction. The plurality of sub-acceleration sections are in communication with the plurality of sub-air intake sections one by one. Along the air flow direction, the thickness of each sub-acceleration section along the first direction gradually decreases, the width along the second direction gradually increases, and the flow cross-sectional area gradually decreases.

[0013] In an exemplary embodiment, the fan includes a volute, and a diffuser plate is provided at the air outlet end of the volute. The air duct machine further includes: an air intake valve, provided at the air inlet and configured to control the opening and closing of the air inlet. Based on the air intake valve being in a position to close the air inlet, the air intake valve is flush with the diffuser plate.

[0014] The air duct machine further includes: an air intake valve and a first driving member. The air intake valve is provided at the air inlet and configured to control the opening and closing and the opening degree of the air inlet. The first driving member is connected to the air intake valve and configured to drive the air intake valve to move relative to the housing.

[0015] In an exemplary embodiment, a rotating connection part is provided at one end of the intake valve away from the blower, and the rotating connection part is connected to the first driving member and is configured to drive the intake valve to rotate relative to the housing under the drive of the first driving member; and / or, at least part of the first driving member is located outside the auxiliary air duct and on one side where the input and output pipes of the heat exchanger are located.

[0016] In an exemplary embodiment, the end of the heat exchanger close to the auxiliary air duct is inserted into the auxiliary air duct to perform heat exchange with the air flow flowing through the auxiliary air duct.

[0017] In an exemplary embodiment, a jack for the end of the heat exchanger to pass through is provided on the wall surface of the auxiliary air duct close to the main air duct; first sealing members are provided between the two ends of the heat exchanger in the thickness direction and the wall of the jack, and a second sealing member is provided between the heat exchanger and the wall surface of the auxiliary air duct away from the main air duct.

[0018] In an exemplary embodiment, the first direction is the height direction of the housing, and the auxiliary air duct is provided above the main air duct.

[0019] In an exemplary embodiment, an air duct assembly is provided in the housing, and the air duct assembly includes an air duct partition, an air duct wall plate and an air duct side plate, and the air duct side plate is connected to the air duct partition and the air duct wall plate; the air duct partition and the air duct wall plate are relatively spaced apart along the height direction of the housing and enclose the auxiliary air duct with the air duct side plate; the air duct partition separates the main air duct from the auxiliary air duct.

[0020] In an exemplary embodiment, the air duct machine further includes: a wind guiding structure, which is provided at the air outlet and is configured to be able to rotate relative to the housing to adjust the air outlet direction of the auxiliary air duct.

[0021] The embodiment of the present application also provides an air conditioning device, including the air duct machine according to any one of the above embodiments. Description of the Drawings

[0022] Figure 1 It is a partial three-dimensional structural schematic diagram of the air duct machine provided by some embodiments of the present application;

[0023] Figure 2 It is a sectional structural schematic diagram of the air duct machine provided by some embodiments of the present application;

[0024] Figure 3 It is a partial three-dimensional structural schematic diagram of the air duct machine provided by some embodiments of the present application;

[0025] Figure 4Schematic cross-sectional structure diagram of the first state of the air duct machine provided by some embodiments of the present application. The arrows in the figure indicate the air flow direction;

[0026] Figure 5 Schematic cross-sectional structure diagram of the second state of the air duct machine provided by some embodiments of the present application. The arrows in the figure indicate the air flow direction;

[0027] Figure 6 Schematic partial three-dimensional structure diagram of the air duct machine provided by some embodiments of the present application;

[0028] Figure 7 Schematic partial three-dimensional structure diagram of the air duct machine provided by some embodiments of the present application;

[0029] Figure 8 Schematic partial enlarged structure diagram of the air duct machine provided by some embodiments of the present application, showing the schematic diagrams of different opening angles of the intake valve;

[0030] Figure 9 Schematic partial three-dimensional structure diagram of the air duct machine provided by some embodiments of the present application;

[0031] Figure 10 For Figure 9 Enlarged structure diagram of part A in;

[0032] Figure 11 For Figure 9 Bottom view structure diagram of the structure shown;

[0033] Figure 12 For Figure 11 Cross-sectional structure diagram of the structure shown in the B-B direction;

[0034] Figure 13 For Figure 11 Cross-sectional structure diagram of the structure shown in the C-C direction;

[0035] Figure 14 For Figure 9 Right view structure diagram of the structure shown;

[0036] Figure 15 Schematic cross-sectional structure diagram of the air duct machine in the cooling mode provided by some embodiments of the present application, with the air guiding structure in the first position;

[0037] Figure 16 For Figure 15 Enlarged structure diagram of part D in;

[0038] Figure 17 Schematic cross-sectional structure diagram of the air duct machine in the heating mode provided by some embodiments of the present application, with the air guiding structure in the second position;

[0039] Figure 18 ForFigure 17 Schematic diagram of the enlarged structure of part E;

[0040] Figure 19 is Figure 15 Schematic diagram of the usage scenario of the air duct machine in the refrigeration mode shown, with the air guiding structure in the first position;

[0041] Figure 20 is Figure 17 Schematic diagram of the usage scenario of the air duct machine in the heating mode shown, with the air guiding structure in the second position.

[0042] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0043] 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, 13. Air duct assembly, 131. Air duct partition, 1311. Jack, 132. Air duct wall plate, 133. Air duct side plate, 14. Limit housing, 141. First wall surface, 1411. First limit surface, 142. Second wall surface, 1421. Second limit surface, 143. First arc surface, 15. Middle partition, 16. Air outlet flange, 171. First seal, 172. Second seal;

[0044] 2. Fan, 21. Volute, 211. Diffuser plate;

[0045] 3. Heat exchanger; 4. Intake valve;

[0046] 5. Air guiding structure, 51. First baffle, 52. Second baffle, 53. First partition, 54. Second partition, 55. Rotating shaft, 551. First engaging portion, 56. Air outlet channel, 57. Second arc surface;

[0047] 61. First driving member, 62. Second driving member, 621. Output shaft, 622. Second engaging portion. Detailed implementation manners

[0048] The principles and features of the present application will be described below with reference to the accompanying drawings. The examples given are only for explaining the present application and are not intended to limit the scope of the present application.

[0049] The example of the present application provides an air duct machine, which can be installed in a suspended manner and hidden in the ceiling. The air duct machine includes: a housing 1, a fan 2, and a heat exchanger 3, as Figure 1 and Figure 2 shown.

[0050] A fan chamber 11 and a heat exchange chamber 12 are provided inside the housing 1, as Figure 4 shown. Inside the heat exchange chamber 12, a main air duct 121 and an auxiliary air duct 122 that are separated from each other and arranged side by side in the first direction are provided, asFigure 2 As shown. The auxiliary air duct 122 has an air inlet 1224 and an air outlet 1225, as Figure 4 shown. The auxiliary air duct 122 is provided with a variable cross-section channel whose flow-through cross-sectional area gradually decreases along the air flow direction (i.e., the air flow direction from the air inlet 1224 of the auxiliary air duct 122 to the air outlet 1225), so that the flow-through cross-sectional area of the air inlet 1224 is larger than that of the air outlet 1225, as Figure 4 shown. According to the fluid continuity equation, the mass of the fluid passing through the two variable cross-sections per unit time is the same. Therefore, 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.

[0051] As Figure 2 and Figure 4 shown, the blower 2 is at least partially disposed in the blower cavity 11, and the air outlet end of the blower 2 is communicated with the heat exchange cavity 12, and is arranged to supply air to the main air duct 121 and the auxiliary air duct 122. The heat exchanger 3 is at least partially disposed in the main air duct 121 and is arranged to perform heat exchange with the air flow passing through the main air duct 121.

[0052] A middle partition 15 may be provided in the housing 1, as Figure 3 shown. The middle partition 15 divides the internal space of the housing 1 into a blower cavity 11 and a heat exchange cavity 12. The air outlet end of the blower 2 may penetrate through the middle partition 15 to communicate with the heat exchange cavity 12. The housing 1 is provided with an air inlet communicated with the blower cavity 11, and the air inlet is for indoor air to enter the blower cavity 11. The housing 1 is provided with an air outlet communicated with the main air duct 121, and the air outlet is for the air flow in the main air duct 121 to be discharged to the indoor space. The air inlet end of the main air duct 121 is directly communicated with the output end of the blower 2, and the air flow output by the blower 2 enters the main air duct 121 to exchange heat with the heat exchanger 3 and is then discharged to 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 to the indoor space through the air outlet flange 16, as Figure 4 shown.

[0053] For the air duct machine provided by the embodiment of the present application, on the basis of the main air duct 121, an auxiliary air duct 122 is added. Since the auxiliary air duct 122 has a variable cross-section design such that the flow-through cross-sectional area of the air inlet 1224 is larger than that of the air outlet 1225, the auxiliary air duct 122 can output high-speed air flow, which is beneficial to improving 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.

[0054] Moreover, the air flow output by the auxiliary air duct 122 is located on one side of the air flow output by the main air duct 121, which can change the flow field on this side of the main air duct 121, thereby being able to affect the air flow direction of the main air duct 121 and playing a role in adjusting the air outlet direction of the main air duct 121. In this way, by reasonably arranging the relative positions of the auxiliary air duct 122 and the main air duct 121, the air outlet of the main air duct 121 can bring a better user experience to the user. For example: by arranging the auxiliary air duct 122 above the main air duct 121, the air flow of the auxiliary air duct 122 can be used to press down the air flow of the main air duct 121 to improve the problem that hot air is difficult to reach the ground in the heating mode.

[0055] In some exemplary embodiments, the auxiliary air duct 122 includes an intake section 1221 and an acceleration section 1222, as Figure 4 shown. 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. 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.

[0056] As Figure 4 shown, the intake section 1221 is arranged offset from the output end of the fan 2 in the first direction, and the air inlet 1224 is provided on the wall surface of the intake section 1221 close to the main air duct 121. In this way, the intake section 1221 does not block the air outlet end of the fan 2, which is beneficial to reducing wind resistance, and the air flow output by the output end of the fan 2 can be divided into two paths, one path directly enters the main air duct 121, and the other path enters the auxiliary air duct 122 through the air inlet 1224.

[0057] In some exemplary embodiments, the auxiliary air duct 122 further includes a turning section 1223, as Figure 4 shown. 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 of the air flow towards the main air duct 121, and the air outlet 1225 is provided at the end of the turning section 1223.

[0058] This is convenient for 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. Moreover, this is also convenient for 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.

[0059] In some exemplary embodiments, as Figure 4As shown, along the air flow direction, the acceleration section 1222 extends obliquely away from the wall of the main air duct 121 towards the wall of the main air duct 121, so that the thickness of the acceleration section 1222 in the first direction gradually decreases, which plays a role in reducing the flow cross-sectional area of the acceleration section 1222 and thus increasing the air flow velocity. The wall of the acceleration section 1222 away from the main air duct 121 can extend linearly in the horizontal direction, with regular structure and convenient installation.

[0060] In some exemplary embodiments, as Figure 3 shown, along the air flow direction, the length of the acceleration section 1222 in the second direction gradually increases, and the second direction is perpendicular to the first direction and perpendicular to the air flow direction. 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 velocity output by the auxiliary air duct 122.

[0061] In some exemplary embodiments, as Figure 3 、 Figure 6 shown, the fan 2 includes a plurality of volutes 21 arranged at intervals in the second direction. A wind wheel is provided in each volute 21, so that the fan 2 can generate a large air volume.

[0062] As Figure 3 shown, the intake section 1221 includes a plurality of sub-intake sections 1226 arranged at intervals in the second direction. The plurality of sub-intake sections 1226 correspond to the plurality of volutes 21 one by one. The intake port 1224 includes a plurality of sub-intake ports 1228 arranged at intervals in the second direction, as Figure 7 and Figure 11 shown. The plurality of sub-intake ports 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 its corresponding sub-intake port 1228, which is beneficial to reducing air flow loss and beneficial to increasing the air flow rate entering the auxiliary air duct 122.

[0063] As Figure 3 shown, the acceleration section 1222 includes a plurality of sub-acceleration sections 1227 arranged at intervals in the second direction. The plurality of sub-acceleration sections 1227 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 1227 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 1227 can be effectively accelerated to ensure that the air flow finally output by the auxiliary air duct 122 has a high speed.

[0064] The sizes and shapes of the multiple acceleration sub-segments 1227 may be completely consistent, completely inconsistent, or inconsistent, and may be adjusted accordingly according to the distribution of the multiple volutes 21. Figure 3 As shown, when the distance between two adjacent volutes 21 is large, the inclination degree of the adjacent walls of the corresponding two sub-acceleration sections 1227 can be relatively large; when the distance between two adjacent volutes 21 is small, the inclination degree of the adjacent walls of the corresponding two sub-acceleration sections 1227 can be relatively small.

[0065] In some exemplary embodiments, Figure 3 As shown, there is one turning section 1223, which is connected to a plurality of sub-acceleration sections 1227. Therefore, the airflows output by the plurality of sub-acceleration sections 1227 are combined in the turning section 1223 and then output through the air outlet 1225, which is conducive to improving the uniformity of the airflow output by the auxiliary air duct 122.

[0066] 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. Figure 5 As shown, the diffuser plate 211 is located on the opposite side of the volute tongue. The duct machine also includes: an air inlet valve 4, which is arranged at the air inlet 1224, such as Figure 4 and Figure 5 As shown, it is configured to control the opening and closing of the air inlet 1224. Based on the air inlet valve 4 being in a position to close the air inlet 1224, the air inlet valve 4 is flush with the diffuser plate 211, as shown in FIG. Figure 5 In this way, when the auxiliary air duct 122 is not needed, the auxiliary air duct 122 can be closed, and the auxiliary air duct 122 and the air inlet valve 4 will not generate resistance to the airflow of the main air duct 121.

[0067] When the air inlet 1224 includes a plurality of sub-inlet ports 1228, the number of the air inlet valves 4 may be equal to and correspond to the number of the sub-inlet ports 1228, and the plurality of air inlet valves 4 may be linked (e.g., forming an integrated structure, or connected via a linkage structure) to facilitate driving via a first driving member 61. Alternatively, the air inlet valve 4 may be one, which can simultaneously control the opening and closing of all the sub-inlet ports 1228, such as Figure 7 and Figure 11 shown.

[0068] In some exemplary embodiments, the duct machine further includes: an air inlet valve 4 (such as Figure 4 and Figure 5 As shown) and the first driving member 61 (as Figure 3 , Figure 7 and Figure 9The air intake valve 4 is disposed at the air intake port 1224, and is configured to control the opening and closing and the opening degree of the air intake port 1224. The first driving member 61 is connected to the air intake valve 4, and is configured to drive the air intake valve 4 to move relative to the housing 1.

[0069] In this way, when the auxiliary air duct 122 is not needed, the auxiliary air duct 122 can be closed. In addition, by controlling the opening of the air inlet 1224, 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, and also adjusting the air supply distance of the auxiliary air duct 122, and also adjusting the influence on the airflow of the main air duct 121.

[0070] In some exemplary embodiments, a rotating connection portion is provided at one end of the air intake valve 4 away from the fan 2, and the rotating connection portion is connected to the first driving member 61, and is configured to drive the air intake valve 4 to rotate relative to the housing 1 under the drive of the first driving member 61. The first driving member 61 may be, but is not limited to, a stepping motor. The rotating connection portion may be, but is not limited to, a rotating shaft 55 or a shaft hole.

[0071] In this way, when the air intake valve 4 is opened, it can guide the airflow, so that the airflow can enter the auxiliary air duct 122 along the air intake valve 4. Figure 8 As shown), the opening of the air inlet 1224 can be adjusted, thereby adjusting the amount of air entering the auxiliary air duct 122.

[0072] In some exemplary embodiments, Figure 3 , Figure 7 and Figure 9 As 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, such as Figure 3 As shown, it is convenient for the first driving member 61 to be routed. 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, and it can also avoid the first driving member 61 blocking the air flow entering the air outlet flange 16, which is conducive to reducing wind resistance. It can be that the first driving member 61 and the auxiliary air duct 122 are arranged along the second direction and are located on the side where the input and output pipes of the heat exchanger 3 are located.

[0073] In some exemplary embodiments, Figure 4 and Figure 5 As shown, the heat exchanger 3 is inserted into the auxiliary air duct 122 at an end portion close to the auxiliary air duct 122 to perform heat exchange with the airflow flowing through the auxiliary air duct 122 .

[0074] In this way, the air flow passing through the auxiliary air duct 122 can also exchange heat with the heat exchanger 3, which is beneficial to reducing the temperature difference between the air flow output from the auxiliary air duct 122 and the air flow output from the main air duct 121, reducing the temperature difference distribution of the air flow output by the air duct machine, and being beneficial to improving the air supply comfort of the air duct machine.

[0075] Of course, the heat exchanger 3 can also be completely located in the main air duct 121 without exchanging heat with the air flow in the auxiliary air duct 122.

[0076] In some exemplary embodiments, a jack 1311 for the end of the heat exchanger 3 to pass through is provided on the wall surface of the auxiliary air duct 122 close to the main air duct 121, as Figure 7 、 Figure 13 and Figure 14 shown. The jack 1311 can extend into the main air duct 121 to form a flange, as Figure 13 shown. A first seal 171 is provided between the two ends of the heat exchanger 3 in the thickness direction and the wall of the jack 1311, as Figure 7 and Figure 13 shown. A second seal 172 is provided between the heat exchanger 3 and the wall surface of the auxiliary air duct 122 away from the main air duct 121, as Figure 7 and Figure 13 shown. This is beneficial to avoiding air leakage between the auxiliary air duct 122 and the main air duct 121, and is also beneficial to improving the position stability of the heat exchanger 3.

[0077] Among them, the first seal 171 can be, but is not limited to, sponge. The second seal 172 can be, but is not limited to, sponge. The heat exchanger 3 can be, but is not limited to, a finned heat exchanger 3, and part of the fins of the heat exchanger 3 are embedded in the auxiliary air duct 122.

[0078] In some exemplary embodiments, as Figure 1 shown, the first direction is the height direction (i.e., the up and down direction) of the housing 1. The auxiliary air duct 122 is provided on the upper side of the main air duct 121. The second direction is the length direction (i.e., the left and right direction) of the housing 1.

[0079] When the auxiliary air duct 122 is provided on the upper side of the main air duct 121, as Figure 2 、 Figure 4 and Figure 5 shown, 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 from the auxiliary air duct 122 in the heating mode will be lower than the temperature of the air flow output from the main air duct 121. Therefore, the sinking effect of the low-temperature air flow output from the auxiliary air duct 122 can be used to press down the high-temperature air flow output from the main air duct 121, prompting the hot air to fall to the ground, as Figure 20 shown, to improve the problem that the hot air of the air duct machine is difficult to reach the ground.

[0080] In some exemplary embodiments, an air duct assembly 13 is provided inside the housing 1, as shown in Figure 1 . The air duct assembly 13 includes an air duct partition 131, an air duct wall panel 132, and an air duct side panel 133, as shown in Figure 13 and Figure 14 . The air duct side panel 133 is connected to the air duct partition 131 and the air duct wall panel 132. The air duct partition 131 and the air duct wall panel 132 are relatively spaced apart along the height direction of the housing 1, and together with the air duct side panel 133, they enclose an auxiliary air duct 122. The air duct partition 131 separates the main air duct 121 from the auxiliary air duct 122. The first driving member 61 can be fixed to the air duct side panel 133, as shown in Figure 14 , and is located on the side where the input and output pipes of the heat exchanger 3 are located.

[0081] In some exemplary embodiments, the ratio of the flow cross-sectional area of the air inlet 1224 to the air outlet 1225 is 4:1. Through testing, the air outlet speed can be increased by about 300%. Of course, the ratio of the flow cross-sectional area of the air inlet 1224 to the air outlet 1225 is not limited to this ratio and can also be other ratios.

[0082] In some exemplary embodiments, the air duct machine further includes: a wind guiding structure 5, which is provided at the air outlet 1225 and is configured to be able to rotate relative to the housing 1 to adjust the air outlet direction of the auxiliary air duct 122.

[0083] Since a rotatable wind guiding 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 air flow output by the auxiliary air duct 122 is located on one side of the air flow output by the main air duct 121, and can more effectively change the flow field on this side of the main air duct 121, thereby being able to more effectively affect the air flow direction of the main air duct 121 and playing a role in adjusting the air outlet direction of the main air duct 121. Thus, the air outlet of the air duct machine has the ability to adjust the wind direction, and there is no need to install a complex 3D panel, which will not affect the indoor decoration style.

[0084] Among them, the structural form of the wind guiding structure 5 is not limited. For example, it can be an ordinary single-layer wind guiding plate.

[0085] In some exemplary embodiments, the wind guiding structure 5 is provided with an air outlet channel 56 communicating with the air outlet 1225 (as shown in Figure 16 ).

[0086] Setting a wind deflector at the air outlet 1225 can also adjust the air outlet direction. However, only the part of the air flow close to the wind deflector can be effectively redirected, while the air flow far from the wind deflector cannot be effectively redirected and will disperse to a large extent. Compared with the scheme of setting a wind deflector at the air outlet 1225 to adjust the air outlet direction, the wind guiding structure 5 of this scheme is provided with an air outlet channel 56 communicating with the air outlet 1225. The air flow at the air outlet 1225 needs to be discharged through the air outlet channel 56. When the wind guiding structure 5 rotates, the entire air outlet channel 56 also rotates synchronously. Therefore, the air flow in the air outlet channel 56 can be redirected as a whole without dispersion, which is equivalent to playing a good sealing role. Therefore, the wind direction adjustment ability is better, which is beneficial to accurately control the air outlet direction.

[0087] In some exemplary embodiments, a limiting shell 14 protrudes at the air outlet 1225, as Figure 2 and Figure 4 shown. At least a part of the wind guiding structure 5 is located in the limiting shell 14 and is rotatably matched with the inner wall surface of the limiting shell 14. This is beneficial to avoid air leakage between the wind guiding structure 5 and the limiting shell 14, so that the air flow output by the auxiliary air duct 122 is discharged through the air outlet channel 56 as much as possible, in order to accurately control the air outlet direction. Moreover, the limiting shell 14 can limit the wind guiding structure 5, which is beneficial to improving the position stability and use reliability of the wind guiding structure 5 during use.

[0088] In some exemplary embodiments, as Figure 16 and Figure 18 shown, 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 in a first direction. First arc surfaces 143 are provided at the upstream ends of both the first wall surface 141 and the second wall surface 142. A second arc surface 57 is provided at the upstream end of the outer wall surface of the wind guiding structure 5. The first arc surface 143 is adapted to the second arc surface 57 so that the wind guiding structure 5 can rotate relative to the limiting shell 14.

[0089] This is beneficial to increasing the contact area between the wind guiding structure 5 and the limiting shell 14, and is beneficial to improving the position stability and use reliability of the wind guiding structure 5 during use.

[0090] In some exemplary embodiments, as Figure 16 and Figure 18 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 wind guiding structure 5 is arranged to be rotatable between a first position and a second position. Based on the wind guiding structure 5 rotating to the first position, as Figure 16 shown, the wind guiding structure 5 is in abutting fit with the first limiting surface 1411. Based on the wind guiding structure 5 rotating to the second position, as Figure 18As shown, the wind guiding structure 5 is in abutment with the second limiting surface 1421 .

[0091] Therefore, the first limiting surface 1411 and the second limiting surface 1421 can limit the rotation range of the air guiding structure 5, so that the air guiding structure 5 can be reliably positioned at the first position or the second position.

[0092] In some exemplary embodiments, Figure 16 and Figure 18 As shown, the second wall surface 142 is located between the first wall surface 141 and the main air duct 121, so the second wall surface 142 is close to the main air duct 121, and the first wall surface 141 is far from the main air duct 121. The inner wall surface of the outlet channel 56 extends in a straight line parallel to the central axis of the outlet channel 56, so the outlet channel 56 is a straight line channel with a constant flow cross-sectional area, which is convenient for outputting high-speed airflow and preventing airflow from escaping. The flow cross-sectional area of ​​the outlet channel 56 is equal to the flow cross-sectional area of ​​the outlet port 1225.

[0093] like Figure 16 and Figure 18 As shown, the first limiting surface 1411 extends in a straight line direction parallel to the central axis of the air outlet 1225. Along the airflow direction, the second limiting surface 1421 extends obliquely in a straight line direction away from the first wall surface 141. Therefore, when the air guide 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 guide 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.

[0094] In some exemplary embodiments, the air duct machine further includes a second driving member 62, such as Figure 9 and Figure 10 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.

[0095] In some exemplary embodiments, the fan 2 includes a plurality of volutes 21 spaced apart along the second direction, such as Figure 3 , Figure 6 As shown. A wind wheel is arranged in each volute 21, so that the fan 2 can generate a large air volume. The fan cavity 11 and the heat exchange cavity 12 are arranged along the third direction. The third direction, the second direction and the first direction are perpendicular to each other.

[0096] The connection portion between the second driving member 62 and the air guide structure 5 is staggered with the plurality of volutes 21 in the third direction, such as Figure 3As shown in the figure, this can avoid a large air resistance caused by the connection part of the second driving member 62 and the air guiding structure 5 facing the air outlet end of the volute 21, which is beneficial to reducing the air resistance and improving the air output volume.

[0097] In some exemplary embodiments, as Figure 1 shown, the first direction is the height direction of the housing 1, that is, the up and down direction. The second direction is the length direction of the housing 1, that is, the left and right direction. The third direction is the width direction of the housing 1, that is, the front and back direction.

[0098] In some exemplary embodiments, the rotation axis of the air guiding structure 5 extends along the second direction, so the air guiding structure 5 can rotate around its rotation axis towards or away from the main air duct 121 to effectively adjust the air flow direction of the main air duct 121.

[0099] In some exemplary embodiments, the second driving member 62 is at least partially located outside the auxiliary air duct 122 and is fixed to the air duct wall plate 132, as Figure 3 and Figure 10 shown, this can avoid the second driving member 62 occupying the internal space of the main air duct 121 or the auxiliary air duct 122, which is beneficial to reducing the air resistance.

[0100] In some exemplary embodiments, the air guiding structure 5 includes a first baffle 51 and a second baffle 52 that are spaced apart from each other along the first direction, as Figure 16 shown. An air outlet channel 56 is defined between the first baffle 51 and the second baffle 52. The first baffle 51 and the second baffle 52 are provided with the above-mentioned second arc surface 57.

[0101] As Figure 10 shown, the air guiding structure 5 further includes a first partition 53 and a second partition 54 that are spaced in the air outlet channel 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 side wall of the rotating shaft 55. The output shaft 621 of the second driving member 62 is provided with a second engaging portion 622. 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 (as Figure 12 shown).

[0102] When the first engaging portion 551 is a thread, as Figure 10As shown, the second driving member 62 may be, but is not limited to, a stepper 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 may 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.

[0103] 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 may also be provided to achieve indirect connection.

[0104] In some exemplary embodiments, the air duct machine further includes: a health module (not shown in the figure), which is disposed at the air outlet 1225 and is configured to cause the auxiliary air duct 122 to release health factors outward, so as to facilitate using the high-speed air flow output by the auxiliary air duct 122 to release more health factors into the indoor space to improve the indoor air quality.

[0105] Among them, the health module may be, but is not limited to, a plasma generator, a negative ion generator, etc. The health factors may include, but are not limited to: negative ions, plasma, free radicals, strongly oxidizing active substances, etc.

[0106] In some exemplary embodiments, the first direction is the height direction of the housing 1. The auxiliary air duct 122 is located above the main air duct 121. The air guiding structure 5 is configured to rotate between a first position and a second position. Based on the air guiding structure 5 being in the first position, the air outlet passage 56 blows air horizontally. Based on the air guiding structure 5 being in the second position, the air outlet passage 56 blows air obliquely downward. In the cooling mode, the air supply mode, when the auxiliary air duct 122 is in the closed state or the whole machine is in the shutdown state, the air guiding structure 5 may be in the first position. In the heating mode, the air guiding structure 5 may be in the second position.

[0107] And, in the cooling mode, when the air guiding structure 5 is in the first position, as Figure 15 and Figure 19 shown, the auxiliary air duct 122 outputs a high-speed air flow horizontally, having a relatively large air supply distance, and the high-speed air flow generates a negative pressure effect above the main air duct 121, so that the upper air flow output by the main air duct 121 can also obtain a farther air supply distance (increasing L). In this way, the whole air duct machine can obtain a farther air supply distance, and the cold air landing range can cover a larger range, realizing air curtain type air supply. By adjusting the opening degree of the air inlet 1224, the air flow rate and air flow speed of the auxiliary air duct 122 can be changed, so as to obtain different air supply distances. By changing the air outlet direction of the air guiding structure 5, different air supply distances can also be obtained.

[0108] In the heating mode, when the air guiding structure 5 is in the second position, asFigure 17 and Figure 20 As shown in Figure 20 , the auxiliary air duct 122 outputs high-speed air flow downward to form an air curtain, which restricts the upward floating hot air output by the main air duct 121 below, making the hot air close to the ground and achieving the effect of warm-foot air supply. By adjusting the opening degree of the air inlet 1224, the air flow rate and air flow speed of the auxiliary air duct 122 can be changed, thereby obtaining different air supply distances. By changing the air outlet direction of the air guiding structure 5, different air supply distances can also be obtained.

[0109] The embodiment of the present application also provides an air conditioning device, including an outdoor unit and the air duct machine in any one of the above embodiments, and thus has all the above beneficial effects, which will not be repeated here.

[0110] In the description of the present application, it should be understood that the orientation or positional relationship indicated by 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. is based on the orientation or positional relationship shown in the drawings, and 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 therefore cannot be understood as a limitation to the present application.

[0111] 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 such 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.

[0112] In the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can 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.

[0113] In this application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean 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 top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0114] In the description of this specification, the description of reference terms such as "an embodiment", "some embodiments", "exemplifications", "specific exemplifications", or "some exemplifications", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or exemplification are included in at least one embodiment or exemplification of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or exemplification. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or exemplifications in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or exemplifications described in this specification and the features of different embodiments or exemplifications.

[0115] 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 machine, characterized in that, Comprising: A housing, within which a blower chamber and a heat exchange chamber are provided. In the heat exchange chamber, a main air duct and an auxiliary air duct are provided, separated from each other and arranged side by side in a first direction. The auxiliary air duct has an air inlet and an air outlet; the auxiliary air duct is provided with a variable cross-section channel whose cross-sectional area in the air flow direction gradually decreases, so that the cross-sectional area of the air inlet is larger than that of the air outlet. A blower, at least partially arranged in the blower chamber, and the air outlet end of the blower communicates with the heat exchange chamber, configured to supply air to the main air duct and the auxiliary air duct. And A heat exchanger, at least partially arranged in the main air duct, configured to perform heat exchange with the air flowing through the main air duct.

2. The air duct machine according to claim 1, characterized in that The auxiliary air duct includes an air inlet section and an acceleration section. The acceleration section is located downstream of the air inlet section and communicates with the air inlet section. The variable cross-section channel is arranged in the acceleration section; the air inlet section is arranged offset from the output end of the blower in the first direction, and the air inlet is arranged on the wall surface of the air inlet section close to the main air duct.

3. The air duct machine according to claim 2, wherein The auxiliary air duct further includes a turning section. The turning section is located downstream of the acceleration section and communicates with the acceleration section, and the turning section extends obliquely in the direction close to the main air duct along the air flow direction. The air outlet is arranged at the end of the turning section.

4. The air duct machine according to claim 2, wherein Along the air flow direction, the wall surface of the acceleration section close to the main air duct extends obliquely away from the main air duct, so that the thickness of the acceleration section in the first direction gradually decreases.

5. The air duct machine according to claim 4, characterized in that, Along the air flow direction, the length of the acceleration section in a second direction gradually increases. The second direction is perpendicular to the first direction and perpendicular to the air flow direction.

6. The air duct machine according to claim 5, characterized in that, The blower includes a plurality of volutes arranged at intervals in the second direction. The air inlet section includes a plurality of sub-air inlet sections arranged at intervals in the second direction. The plurality of sub-air inlet sections correspond to the plurality of volutes one by one; the air inlet includes a plurality of sub-air inlets arranged at intervals in the second direction. The plurality of sub-air inlets are arranged corresponding to the plurality of sub-air inlet sections one by one. The acceleration section includes a plurality of sub-acceleration sections arranged at intervals in the second direction. The plurality of sub-acceleration sections communicate with the plurality of sub-air inlet sections one by one; along the air flow direction, the thickness of each sub-acceleration section in the first direction gradually decreases, the width in the second direction gradually increases, and the cross-sectional area gradually decreases.

7. The air duct machine according to any one of claims 2 to 6, characterized in that The blower includes a volute, and a diffuser plate is provided at the air outlet end of the volute. The air duct machine further includes: an intake valve, arranged at the air inlet, configured to control the opening and closing of the air inlet; based on the intake valve being in a position to close the air inlet, the intake valve is flush with the diffuser plate.

8. The air duct machine according to any one of claims 1 to 6, characterized in that, The air duct machine further includes: an intake valve and a first driving member; the intake valve is arranged at the air inlet, configured to control the opening and closing and the opening degree of the air inlet; the first driving member is connected to the intake valve, configured to drive the intake valve to move relative to the housing.

9. The air duct machine according to claim 8, characterized in that, One end of the intake valve away from the blower is provided with a rotational connection portion, and the rotational connection portion is connected to the first driving member and configured to drive the intake valve to rotate relative to the housing under the drive of the first driving member; and / or At least a part of the first driving member is located outside the auxiliary air duct and on the side where the input and output pipes of the heat exchanger are located.

10. The air duct machine according to any one of claims 1 to 6, characterized in that, The end of the heat exchanger close to the auxiliary air duct is inserted into the auxiliary air duct to exchange heat with the air flow flowing through the auxiliary air duct.

11. The air duct machine according to claim 10, characterized in that, A jack for the end of the heat exchanger to pass through is provided on the wall surface of the auxiliary air duct close to the main air duct; First sealing members are provided between the two ends of the heat exchanger in the thickness direction and the wall of the jack, and a second sealing member is provided between the heat exchanger and the wall surface of the auxiliary air duct away from the main air duct.

12. The air duct machine according to any one of claims 1 to 6, characterized in that, The first direction is the height direction of the housing, and the auxiliary air duct is provided above the main air duct.

13. The air duct machine according to any one of claims 1 to 6, characterized in that, An air duct assembly is provided in the housing. The air duct assembly includes an air duct partition, an air duct wall plate and an air duct side plate. The air duct side plate is connected to the air duct partition and the air duct wall plate; the air duct partition and the air duct wall plate are relatively spaced apart along the height direction of the housing and enclose the auxiliary air duct with the air duct side plate; the air duct partition separates the main air duct from the auxiliary air duct.

14. The air duct machine according to any one of claims 1 to 6, characterized in that, The air duct machine further includes: a wind guiding structure provided at the air outlet and configured to be able to rotate relative to the housing to adjust the air outlet direction of the auxiliary air duct.

15. An air conditioning device, characterized in that, An air duct machine according to any one of claims 1 to 14 is included.

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