Air duct device and air conditioner

Abstract

The utility model discloses an air duct device and an air conditioner, and relates to the technical field of household appliances, and the air duct device comprises a main air duct shell and an air outlet air duct shell; a main air duct is formed in the main air duct shell, an air outlet duct is formed in the air outlet duct shell, and the air outlet duct shell is connected with the main air duct shell in a swing switching mode between a first swing position and a second swing position so that the air outlet duct can be communicated with the air outlet portion of the main air duct. The air outlet duct shell is provided with a plurality of air outlet positions between the first swing position and the second swing position, and the air outlet directions of the air outlet positions are different. The air outlet angle is adjusted through movement of the air channel, the air supply requirements of the air conditioner in different operation modes are met, and the air supply amount of the air conditioner in each operation mode is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of home appliance technology, and in particular to a duct device and an air conditioner. Background Technology

[0002] Wall-mounted air conditioner indoor units mostly use cross-flow ducts for air delivery. The position and angle of the duct outlet are usually fixed. When the duct outlet cannot be rotated and the position and angle of the duct outlet remain unchanged, the air delivery direction can only be adjusted by the baffle in the duct. The adjustable range of the duct air delivery angle is limited, and it cannot simultaneously meet the cooling and heating requirements of delivering cooling air at the maximum upward angle and delivering hot air at the maximum downward angle. The cooling or heating air delivery experience is poor. Utility Model Content

[0003] The main purpose of this utility model is to propose a duct device and an air conditioner, which aims to enable the air conditioner to meet the requirements of air supply angle adjustment in different operating modes.

[0004] To achieve the above objectives, the air conditioner proposed in this utility model includes:

[0005] The main air duct shell forms the main air duct;

[0006] An air outlet duct shell is formed to form an air outlet duct; the air outlet duct shell is swayably connected to the main air duct shell between a first swing position and a second swing position, so that the air outlet duct is connected to the air outlet part of the main air duct. The air outlet duct shell has multiple air outlet positions between the first swing position and the second swing position, and the air outlet direction of each air outlet position is different.

[0007] In one embodiment, the main air duct shell has a first limiting part and a second limiting part disposed opposite to each other, and the air outlet air duct shell has a third limiting part and a fourth limiting part disposed opposite to each other;

[0008] When the air outlet duct housing is in the first swing position, the second limiting part abuts against the fourth limiting part; when the air supply part is in the second swing position, the first limiting part abuts against the third limiting part.

[0009] In one embodiment, the main air duct shell includes a first sidewall and a second sidewall that are radially opposite to each other along the air outlet air duct shell. The first sidewall protrudes outward from the main air duct shell and is provided with a first limiting portion. The second sidewall protrudes outward from the main air duct shell and is provided with a second limiting portion. The first limiting portion and the second limiting portion are located inside the air outlet air duct shell.

[0010] The air outlet duct housing includes a third sidewall and a fourth sidewall that are radially opposite to each other along the air outlet duct housing. The third sidewall is recessed inward toward the air outlet duct housing and the fourth sidewall is recessed outward toward the main air duct housing and the fourth limiting part is provided.

[0011] In one embodiment, the air duct device further includes a pin, which is fixed to the main air duct shell and rotatably connected to the outlet air duct shell.

[0012] In one embodiment, the air duct device further includes a rotary drive assembly, which drives the outlet air duct housing to rotate relative to the main air duct housing.

[0013] In one embodiment, the air outlet duct housing further includes two second end walls disposed opposite to each other along the axial direction of the air outlet duct housing;

[0014] The main air duct shell also includes two first end walls that are arranged opposite each other along the axial direction of the air outlet air duct shell. The two first end walls are located between the two second end walls. Each first end wall is provided with the pin. At least one of the two first end walls is provided with the rotary drive assembly.

[0015] In one embodiment, the rotary drive assembly includes a drive member, a first gear, and a second gear. The drive member is disposed on the first end wall, and the first gear and the second gear are connected in a transmission connection. The first gear is connected to the output end of the drive member, and the second gear is disposed on the second end wall and is rotatably connected to the pin.

[0016] In one embodiment, the first end wall is provided with a first shaft hole, the side of the first end wall away from the second end wall is provided with a limiting groove, and the second end wall is provided with a second shaft hole, which extends out from the rotation center of the second gear.

[0017] The pin includes a first positioning part, a first shaft part, and a second positioning part. The first shaft part passes through the first shaft hole to the second shaft hole. The first positioning part is engaged with the limiting groove. The second positioning part is engaged with the side of the second gear opposite to the second end wall.

[0018] In one embodiment, the first end wall is provided with a third shaft hole;

[0019] The first gear includes a second shaft portion, a gear body, and a drive connection portion. The second shaft portion, the gear body, and the drive connection portion are arranged sequentially along the axial direction of the air outlet duct shell. The second shaft portion is rotatably mounted in the third shaft hole. The gear body is drivenly connected to the second gear. The drive connection portion is connected to the output end of the drive component.

[0020] In one embodiment, the drive element is configured as a motor, and the rotary drive assembly further includes a motor cover on which the motor is mounted, and the motor cover is mounted to the first end wall by fasteners.

[0021] This utility model also proposes an air conditioner, comprising:

[0022] The air conditioner body includes a casing, the casing having an air inlet and an air outlet; and

[0023] The air duct device described above is disposed within the housing and is used to guide airflow from the air inlet to the air outlet. The main air duct housing and the outlet air duct housing of the air duct device are arranged sequentially from the air inlet to the air outlet. The first swing position of the air duct device is close to the lower end of the air inlet, and the second swing position of the air duct device is close to the upper end of the air inlet. 。

[0024] In one embodiment, the air conditioner further includes a fan and an indoor heat exchanger. The fan is disposed in the main air duct housing of the air duct device and is used to drive airflow from the air inlet to the air outlet. The indoor heat exchanger is disposed inside the housing and located between the air inlet and the fan.

[0025] The technical solution of this utility model includes a main air duct shell and an outlet air duct shell in the air duct device. The outlet air duct shell is swayably connected to the main air duct shell between a first swing position and a second swing position. The outlet air duct shell has multiple air outlet positions between the first and second swing positions, and the air outlet direction of each position is different. When this air duct device is applied to the indoor unit of an air conditioner, and the air outlet of the outlet air duct shell faces the air outlet of the indoor unit, air can be generated at multiple positions of the air outlet of the indoor unit, achieving a large variation in the air supply range. Furthermore, when the first swing position is... When the second swing position adopts a height difference design, when the air conditioner is cooling, the air outlet duct shell swings to a higher swing position, causing the air outlet to tilt upwards and send air. When the air conditioner is heating, the air outlet duct shell swings to a lower swing position, causing the air outlet to tilt downwards and send air. This meets the air supply needs of the air conditioner in different operating modes. Compared with the method of setting an air guide plate at the air outlet and sending air downwards by pressing down the air guide plate, and sending air upwards by raising the air guide plate, the air supply caused by changing the position of the duct shell is less of a loss of air volume and will not affect the air volume of the air conditioner. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of an embodiment of the air conditioner provided by this utility model;

[0028] Figure 2 for Figure 1 Exploded view of the structure of a central air conditioner;

[0029] Figure 3 for Figure 1 A schematic diagram of the air-sweeping mode of a central air conditioner;

[0030] Figure 4 for Figure 1 A schematic diagram of the cooling mode operation of a central air conditioner;

[0031] Figure 5 for Figure 1 A schematic diagram of the heating mode operation of a central air conditioner;

[0032] Figure 6 A schematic diagram of a structural embodiment of the air duct device provided by this utility model;

[0033] Figure 7 for Figure 6 Exploded view of the rotating drive component;

[0034] Figure 8 for Figure 2 Schematic diagram of the structure of the main air duct shell;

[0035] Figure 9 for Figure 2 Schematic diagram of the structure of the central air outlet duct shell;

[0036] Figure 10 for Figure 2 Schematic diagram showing the connection between the main air duct shell and the outlet air duct shell;

[0037] Figure 11 for Figure 6 A partial sectional view of the rotary drive component;

[0038] Figure 12 for Figure 2 Structural sectional view of the center pin;

[0039] Figure 13 for Figure 2 A cross-sectional view of the structure of the first gear.

[0040] Explanation of icon numbers:

[0041] 100. Air conditioner main body; 10. Housing; 101. Air inlet; 102. Air outlet; 102a. First swing position; 102b. Second swing position; 11. Face frame; 12. Chassis; 13. Panel; 20. Rotary drive assembly; 21. Drive component; 221. First gear; 2211. Gear body; 2212. Second shaft; 2213. Drive connection part; 222. Second gear; 23. Motor cover; 30. Air duct device; 31. Main air duct shell; 31a. First side wall; 31b. Second side wall; 31c. First end wall; 311. First limiting part; 312. Second limiting part; 313. First shaft hole; 314. Limiting groove; 315. Third shaft hole; 32. Air outlet duct shell; 32a. Third side wall; 32b. Fourth side wall; 32c. Second end wall; 321. Air supply part; 322. Third limiting part; 323. Fourth limiting part; 324. Second shaft hole; 325. First mating part; 326. Second mating part; 33. Pin; 331. First positioning part; 332. First shaft part; 333. Second positioning part; 40. Fan; 50. Indoor heat exchanger.

[0042] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0044] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0046] Wall-mounted air conditioner indoor units mostly use cross-flow ducts for air delivery. The position and angle of the duct outlet are usually fixed. When the duct outlet cannot be rotated and the position and angle of the duct outlet remain unchanged, the air delivery direction can only be adjusted by the baffle in the duct. The adjustable range of the duct air delivery angle is limited, and it cannot simultaneously meet the cooling and heating requirements of delivering cooling air at the maximum upward angle and delivering hot air at the maximum downward angle. The cooling or heating air delivery experience is poor.

[0047] This utility model proposes an air duct device for use in the indoor unit of an air conditioner, which aims to enable the air conditioner to meet the air supply angle adjustment requirements in different operating modes.

[0048] Please see Figures 1 to 13 In one embodiment of the present invention, the air duct device 30 includes a main air duct shell 31 and an outlet air duct shell 32. The main air duct shell 31 forms a main air duct, and the outlet air duct shell 32 forms an outlet air duct. The outlet air duct shell is swayably connected to the main air duct shell 31 between a first swing position 102a and a second swing position 102b, so that the outlet air duct is connected to the outlet part of the main air duct. The outlet air duct shell 32 has multiple outlet positions between the first swing position 102a and the second swing position 102b, and the outlet direction of each outlet position is different.

[0049] In this invention, the air duct device can be applied to an air conditioner. Specifically, the air duct device can be applied to the indoor unit of an air conditioner to guide the airflow within the indoor unit. The main air duct housing 31 may be provided with a first air intake and a first air supply. The first air supply is the air outlet of the main air duct housing 31, and the first air intake is the air inlet of the air outlet duct housing 32. The main air duct housing 31 may be provided with a second air intake and a second air supply. The second air intake is the air inlet of the air outlet duct housing 32, and the second air supply is the air outlet of the air outlet duct housing 32. One end of the air outlet duct housing 32, which has a first air supply port, can be inserted into the air outlet duct housing 32 through the second air intake port of the air outlet duct housing 32 to achieve the connection between the main air duct housing 31 and the air outlet duct housing 32. When the air outlet duct housing 32 swings relative to the main air duct housing 31, the main air duct housing 31 and the air outlet duct housing 32 are always connected, and the main air duct and the air outlet duct are always connected. In this way, the airflow can be guided from the first air intake port to the second air supply port.

[0050] Since the outlet duct housing 32 is swayable within the main duct housing 31, when the outlet duct housing 32 sways between the first sway position 102a and the second sway position 102b, the position of the second air outlet changes accordingly, allowing the second air outlet of the outlet duct housing 32 to discharge air at multiple positions between the first sway position 102a and the second sway position 102b. When this duct device 30 is applied to the indoor unit of an air conditioner, the first sway position 102a can be positioned close to the lower end of the indoor unit's air outlet 102, and the second sway position 102b can be positioned close to the upper end of the indoor unit's air outlet 102. The second air outlet of the outlet duct housing 32 can reciprocate between the upper position near the air conditioner's air outlet and the lower position near the air conditioner's air outlet, giving the air conditioner a larger air supply adjustment range. When the air conditioner is cooling, the air outlet duct housing 32 can be rotated to the second swing position 102b to guide the airflow upwards towards the upper end of the air outlet 102. When the air conditioner is cooling, the air outlet duct housing 32 can be rotated to the first swing position 102a, and the duct device 30 can guide the airflow downwards towards the lower end of the air outlet 102, thus meeting the different air supply requirements of the air conditioner in cooling and heating modes. Compared to using a guide vane at the air outlet 102, which either pushes the air outlet 102 downwards or upwards by pushing it down, changing the position of the duct housing results in less airflow loss and does not affect the air volume of the air conditioner.

[0051] The technical solution of this utility model is achieved by making the air duct device 30 include a main air duct shell 31 and an air outlet air duct shell 32, so that the air outlet air duct shell can be oscillatingly switched between a first swing position 102a and a second swing position 102b and connected to the main air duct shell 31, and the air outlet air duct shell 32 has multiple air outlet positions between the first swing position 102a and the second swing position 102b, and the air outlet direction of each air outlet position is different. When this air duct device is applied to the indoor unit of an air conditioner, and the air outlet part of the air outlet air duct shell 32 faces the air outlet of the indoor unit of the air conditioner... When the air outlet 102 is in operation, air can be generated at multiple positions of the air outlet 102 of the indoor unit of the air conditioner, achieving a large variation in the air supply range. When the first swing position 102a and the second swing position 102b adopt a height difference design, when the air conditioner is cooling, the air outlet duct shell 32 swings to the higher swing position, causing the air outlet 102 to tilt upward and supply air. When the air conditioner is heating, the air outlet duct shell 32 swings to the lower swing position, causing the air outlet 102 to tilt downward and supply air, thus meeting the air supply needs of the air conditioner in different operating modes.

[0052] When the outlet duct housing 32 rotates relative to the main duct housing 31, in order to ensure that the air supply part 321 of the outlet duct housing 32 can be accurately positioned with the first swing position 102a and the second swing position 102b of the outlet 102, such as... Figures 3 to 5 As shown, in one embodiment, the main air duct shell 31 has a first limiting part 311 and a second limiting part 312 disposed opposite to each other, and the air outlet duct shell 32 has a third limiting part 322 and a fourth limiting part 323 disposed opposite to each other.

[0053] When the air outlet duct housing 32 is in the first swing position 102a, the second limiting part 312 abuts against the fourth limiting part 323. When the air supply part 321 is in the second swing position 102b, the first limiting part 311 abuts against the third limiting part 322.

[0054] With this configuration, when the second limiting part 312 abuts against the fourth limiting part 323, the air supply part 321 is located in the first swing position 102a. When the first limiting part 311 abuts against the third limiting part 322, the air supply part 321 is located in the second swing position 102b. This achieves the limitation of the rotation stroke of the air outlet duct shell 32, preventing the air outlet duct shell 32 from rotating excessively, which would cause the air outlet duct shell 32 to detach from the main air duct shell 31 and result in air leakage in the duct device 30.

[0055] The following section further explains the positions of the first limiting part 311 and the second limiting part 312 on the main air duct housing 31, and the positions of the third limiting part 322 and the fourth limiting part 323 on the outlet air duct housing 31. Please refer to the following for further details. Figures 3 to 5In one embodiment, the main air duct shell 31 includes a first sidewall 31a and a second sidewall 31b arranged radially opposite to each other along the air outlet air duct shell 32. The first sidewall 31a is provided with a first limiting portion 311 protruding outward toward the main air duct shell 31, and the second sidewall 31b is provided with a second limiting portion 312 protruding outward toward the main air duct shell 31. The first limiting portion 311 and the second limiting portion 312 are located inside the air outlet air duct shell 32.

[0056] The air outlet duct shell 32 includes a third sidewall 32a and a fourth sidewall 32b arranged radially opposite to each other. The third sidewall 32a is recessed inward toward the air outlet duct shell 32 and the fourth sidewall 32b is recessed outward toward the main air duct shell 31 and the fourth limiting part 323 is recessed outward.

[0057] The third sidewall 32a has a first mating portion 325 near the main air duct shell 31, and the fourth sidewall 32b has a second mating portion 326 near the main air duct shell 31. The first limiting portion 311 is slidably engaged with the first mating portion 325, and the second limiting portion 312 is slidably engaged with the second mating portion 326. The third limiting portion 322 is located at the free end of the first mating portion 325, and the fourth limiting portion 323 is located at the free end of the second mating portion 326. The first mating portion 325 and the second mating portion 326 may be arc-shaped, and both are located on the outer circumference of the rotation center of the air outlet duct shell 32. With this configuration, when the outlet air duct housing 32 rotates relative to the main air duct housing 31, the first limiting part 311 can maintain a relatively sealed engagement with the first mating part 325, and the second limiting part 312 can maintain a relatively sealed engagement with the second mating part 326. Thus, during the rotation of the outlet air duct housing 32, the sealing at the connection between the main air duct housing 31 and the outlet air duct housing 32 can be guaranteed.

[0058] The following section provides a further explanation of how the outlet air duct housing 32 is rotatably mounted on the main air duct housing 31. (See reference...) Figure 6 , Figure 7 , Figure 10 As shown, in one embodiment, the air duct device 30 further includes a pin 33, which is fixed to the main air duct shell 31 and rotatably connected to the outlet air duct shell 32. One end of the pin 33 can be fixedly connected to the main air duct shell 31 by snap-fit, by screws or other fasteners, or by a threaded connection; no limitation is made here. The outlet air duct shell 32 can rotate relative to the other end of the pin 33. This arrangement allows the outlet air duct shell 32 to be rotatably connected to the main air duct shell 31 by rotating around the pin 33.

[0059] Continue reading Figure 6 , Figure 7 , Figure 10 As shown, the air duct device 30 further includes a rotary drive assembly 20, which drives the outlet air duct shell 32 to rotate relative to the main air duct shell 31. The rotary drive assembly 20 can be configured as a belt drive mechanism or a gear drive structure. When the rotary drive assembly 20 is configured as a belt drive structure, it can include at least two pulleys, a belt, and a motor. The belt is fitted onto the two pulleys, and the motor drives one pulley to rotate, thereby driving the other pulley to rotate. The motor and the driving belt can be mounted on the main air duct shell 31 or on the inner wall of the housing 10, while the driven belt can be mounted on the pin 33. Alternatively, the rotary drive assembly 20 can also include a geared motor, which is fixed to the inner wall of the main air duct shell 31 or the housing 10. The output end of the geared motor is directly connected to the pin 33; this is not limited here.

[0060] The structure of the outlet air duct shell 32 and the main air duct shell 31 is further described below. (See reference...) Figure 8 , Figure 9 As shown, the air outlet duct housing 32 also includes two second end walls 32c arranged opposite each other along the axial direction of the air outlet duct housing 32;

[0061] The main air duct shell 31 also includes two first end walls 31c arranged opposite each other along the axial direction of the air outlet air duct shell 32. The two first end walls 31c are located between the two second end walls 32c. Each first end wall 31c is provided with the pin 33. At least one of the two first end walls 31c is provided with the rotary drive assembly 20.

[0062] Two first end walls 31c are located between the first side wall 31a and the second side wall 31b, respectively. The two first end walls 31c, the first side wall 31a and the second side wall 31b are connected to form an air outlet duct shell 32 and enclose a first air duct. Two second end walls 32c are located between the third side wall 32a and the fourth side wall 32b, respectively. The two second end walls 32c, the third side wall 32a and the fourth side wall 32b are connected to form an air outlet duct shell 32 and enclose a second air duct. Since the two first end walls 31c are located between the two second end walls 32c, the two first end walls 31c are located in the second air duct formed inside the air outlet duct shell 32. When the first limiting part 311 and the second limiting part 312 are located inside the air outlet duct shell 32, the air outlet duct shell 32 can fit the air outlet end of the main air duct shell 31, thereby ensuring the docking and communication between the main air duct shell 31 and the air outlet duct shell 32.

[0063] See Figure 10 , Figure 11 As shown, in one embodiment, the rotary drive assembly 20 includes a drive member 21, a first gear 221 and a second gear 222. The drive member 21 is disposed on the first end wall 31c. The first gear 221 and the second gear 222 are connected in a transmission manner. The first gear 221 is connected to the output end of the drive member 21. The second gear 222 is disposed on the second end wall 32c and is rotatably connected to the pin 33.

[0064] The second gear 222 can be integrally formed with the second end wall 32c and protrude from the side of the second end wall 32c opposite to the first end wall 31c. The number of tooth grooves on the second gear 222 can be set according to the maximum rotatable angle of the air outlet duct shell 32. For example, when the maximum rotatable angle of the air outlet duct shell 32 is 60 degrees, the angle between the part of the second gear 222 with the tooth grooves and the rotation center of the second gear 222 can be 60 degrees. This setting can save processing materials when manufacturing the air outlet duct shell 32. In addition, the disk surface of the second gear 222 can be hollowed out, which can reduce the weight of the part of the air outlet duct shell 32 where the second gear 222 is located and further achieve the purpose of saving materials.

[0065] The following describes how the pin 33 is rotatably connected to the second gear 222 and the air outlet duct housing 32, and how it is fixedly connected to the main air duct housing 31. (See attached document.) Figure 10 , Figure 11 , Figure 12 As shown, in one embodiment, the first end wall 31c is provided with a first shaft hole 313, the side of the first end wall 31c away from the second end wall 32c is provided with a limiting groove 314, the second end wall 32c is provided with a second shaft hole 324, and the second shaft hole 324 passes through the rotation center of the second gear 222.

[0066] The pin 33 includes a first positioning part 331, a first shaft part 332, and a second positioning part 333. The first shaft part 332 passes through the first shaft hole 313 to the second shaft hole 324. The first positioning part 331 is engaged with the limiting groove 314. The second positioning part 333 is engaged with the side of the second gear 222 that is away from the second end wall 32c.

[0067] The first positioning part 331 engages with the limiting groove 314 to limit the deflection of the pin 33 relative to the main air duct shell 31. The first positioning part 331 can be configured as a boss with an outer diameter larger than that of the first shaft part 332. Multiple spaced ribs can be provided on the outer periphery of the boss. The groove wall of the limiting groove 314 can be inserted into the ribs. When the pin 33 is subjected to rotational torque, the ribs abut against the groove wall of the limiting groove 314, thereby limiting the deflection of the pin 33 relative to the main air duct shell 31. Of course, the first positioning part 331 can also be configured in other forms. For example, the first positioning part 331 can be directly configured as a non-circular boss. When the boss is inserted into the limiting groove 314, the boss abuts against the inner wall of the limiting groove 314, which can directly limit the deflection of the pin 33. This is not limited here.

[0068] The second positioning part 333 can be configured as multiple spaced elastic protrusions. In its natural state, the maximum outer diameter of the multiple elastic protrusions is greater than the outer diameter of the first shaft part 332. When the multiple elastic protrusions are pressed, they can converge toward the center line of the pin shaft, so that the maximum outer diameter of the second positioning part 333 formed by the multiple elastic protrusions is equal to or less than the diameter of the first shaft hole 313 and the second shaft hole 324. This allows the second positioning part 333 to pass through the first shaft hole 313 and the second shaft hole 324, and the first shaft part 332 to pass through the first shaft hole 313 and the second shaft hole 324. When the second positioning part 333 passes through, the multiple elastic protrusions reset, so that the first shaft part 332 returns to its natural state and forms a snap-fit ​​with the side of the second gear 222 that is away from the second end wall 32c. Thus, the connection between the air outlet duct shell 32 and the main air duct shell 31 is realized through the pin shaft 33. Alternatively, in other embodiments, the second positioning part 333 may be configured as a boss detachably connected to the first shaft part 332. The outer diameter of the boss is larger than that of the first shaft part 332. After the first shaft part 332 passes through the first shaft hole 313 and the second shaft hole 324, the boss is threaded onto the first shaft part 332, forming a snap-fit ​​engagement with the side of the second gear 222 facing away from the second end wall 32c. No limitation is made here.

[0069] The installation of the first gear 221 and the drive component 21 will be further described below. Please refer to [link / reference]. Figure 10 , Figure 11 , Figure 13 As shown, in one embodiment, the first end wall 31c has a third shaft hole 315;

[0070] The first gear 221 includes a second shaft portion 2212, a gear body 2211, and a drive connection portion 2213. The second shaft portion 2212, the gear body 2211, and the drive connection portion 2213 are arranged sequentially along the axial direction of the air outlet duct shell 32. The second shaft portion 2212 is rotatably mounted in the third shaft hole 315. The gear body 2211 is connected to the second gear 222. The drive connection portion 2213 is connected to the output end of the drive member 21.

[0071] The first gear 221 can be manufactured by integral injection molding. Since the first gear 221 itself can be rotatably connected to the third shaft hole 315 through the second shaft part 2212 and connected to the output end of the drive member 21 through the drive connection part 2213, the connection between the first gear 221, the drive member 21, and the main air duct shell 31 can be achieved without adding an additional rotating connecting part to the first gear 221. The gear body 2211 is provided with teeth that mesh with the second gear 222. When the drive member 21 is a motor, the drive connection part 2213 can be a keyway structure that plugs into the output shaft of the motor to achieve connection, or the drive connection part 2213 can be a boss structure that connects to the output shaft of the motor through a coupling. There is no limitation here. To prevent the first gear 221 from interfering with the first end wall 31c during rotation, a protrusion can be provided on the part of the first end wall 31c located on the outer periphery of the third shaft hole 315, so that there is a gap between the first gear 221 and the first end wall 31c after installation, thus preventing motion interference between the first gear 221 and the first end wall 31c.

[0072] See Figure 7 As shown, in one embodiment, the drive element 21 is configured as a motor, and the rotary drive assembly 20 further includes a motor cover 23, which mounts the motor and is mounted to the first end wall 31c by fasteners.

[0073] When the motor is mounted on the first end wall 31c of the main air duct housing 31 via the motor cover 23, multiple mounting posts can be provided on the side of the first end wall 31c located outside the main air duct housing 31. The motor cover 23 is fixed to the multiple mounting posts by fasteners, thereby connecting the motor cover 23 to the first end wall 31c. The motor can be mounted and fixed on the motor cover 23 via its own mounting part, thus achieving the installation and fixation of the motor on the main air duct housing 31 through the motor cover 23. In addition, when the motor cover 23 is provided, it can not only be used to fix the motor, but also to accommodate the motor, the first gear 221 and the second gear 222, so that the drive and transmission components in the rotary drive assembly 20 are all housed within the motor cover 23, achieving safe protection for the drive and transmission components in the rotary drive assembly 20.

[0074] This utility model also proposes an air conditioner, which includes an air conditioning body 100 and an air duct device 30. The specific structure of the air duct device 30 is as described in the above embodiments. Since this air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The air conditioner includes an air conditioning body 100, which includes a housing 10. The housing 10 has an air inlet 101 and an air outlet 102. The air duct device 30 is disposed in the housing 10 and is used to guide airflow from the air inlet 101 to the air outlet 102. The main air duct shell 31 and the air outlet air duct shell 32 of the air duct device 30 are arranged sequentially from the air inlet 101 to the air outlet 102. The first swing position 102a of the air duct device 30 is close to the lower end of the air inlet, and the second swing position 102b of the air duct device 30 is close to the upper end of the air inlet.

[0075] The air conditioner can be a wall-mounted air conditioner, which includes an indoor unit and an outdoor unit. The main body 100 can be the indoor unit, and the casing 10 can be the outer shell of the indoor unit. The casing 10 can include a chassis 12, a front frame 11, and a panel 13. The air inlet 101 can be located at the top of the front frame 11, and the air outlet 102 can be located at the bottom of the front frame 11. The duct device 30 can be mounted on the chassis 12, and the main duct shell 31 of the duct device 30 can be fixedly mounted on the chassis 12. In addition, the indoor unit can also include a fan 40 and an indoor heat exchanger 50 disposed within the casing 10. The fan 40 is disposed within the main duct shell 31 and drives airflow from the air inlet 101 to the air outlet 102. The indoor heat exchanger 50 is disposed within the casing 10 and located between the air inlet 101 and the fan 40. The fan 40 operates, guiding airflow from the air inlet 101 into the casing 10. After exchanging heat with the indoor heat exchanger 50, the air flows into the air duct device 30, where it guides the airflow and exits from the air outlet 102, thus achieving heat exchange. The fan 40 can be a cross-flow fan, which includes a cross-flow impeller and a drive motor. The drive motor can be located on one or both sides of the cross-flow impeller along its axial direction, and the cross-flow impeller is connected to the drive motor via a bearing housing.

[0076] When the air conditioner of this utility model is in operation, it has at least a cooling mode, a heating mode and a swing mode.

[0077] When the air conditioner is in cooling mode, the rotary drive assembly 20 drives the outlet air duct housing 32 to rotate on the main air duct housing 31, so that the outlet air duct housing 32 moves to the second swing position 102b. The fan 40 works to introduce the external airflow into the housing 10. After exchanging heat with the indoor heat exchanger 50, the airflow flows into the air duct device 30. Guided by the air duct device 30, the airflow is sent out obliquely upward from the air outlet 102.

[0078] When the air conditioner is in heating mode, the rotary drive assembly 20 drives the outlet air duct shell 32 to rotate on the main air duct shell 31, so that the outlet air duct shell 32 moves to the first swing position 102a, the fan 40 works, introduces the external airflow into the casing 10, exchanges heat with the indoor heat exchanger 50, and then flows into the air duct device 30. Guided by the air duct device 30, the airflow is sent out obliquely downward from the air outlet 102 to achieve downward air delivery.

[0079] When the air conditioner is in swing mode, the rotary drive assembly 20 drives the outlet air duct housing 32 to rotate back and forth on the main air duct housing 31, causing the outlet air duct housing 32 to swing back and forth between the first swing position 102a and the second swing position 102b. When the fan 40 and the indoor heat exchanger 50 are working, the air after heat exchange is sent out from the air outlet 102. The air can swing back and forth between the air outlet 102 and the first swing position 102a and the second swing position 102b, thus realizing reciprocating rotation air delivery.

[0080] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An air duct arrangement, characterized in that The air duct device comprises: a main air duct shell formed with a main air duct; an air outlet air duct shell formed with an air outlet air duct; the air outlet air duct shell is swingably connected with the main air duct shell between a first swing position and a second swing position, so that the air outlet air duct is communicated with an air outlet part of the main air duct, the air outlet air duct shell has a plurality of air outlet positions between the first swing position and the second swing position, and air outlet directions of the air outlet positions are different.

2. The air duct arrangement of claim 1, wherein the main air duct shell is provided with a first limiting part and a second limiting part in opposite positions, and the air outlet air duct shell is provided with a third limiting part and a fourth limiting part in opposite positions; when the air outlet air duct shell is located at the first swing position, the second limiting part is in abutment with the fourth limiting part, and when the air outlet air duct shell is located at the second swing position, the first limiting part is in abutment with the third limiting part.

3. The air duct arrangement of claim 2, wherein, the main air duct shell comprises a first side wall and a second side wall arranged in opposite positions in a radial direction of the air outlet air duct shell, the first side wall is provided with the first limiting part outwardly protruding towards the main air duct shell, the second side wall is provided with the second limiting part outwardly protruding towards the main air duct shell, and the first limiting part and the second limiting part are located in the air outlet air duct shell; the air outlet air duct shell comprises a third side wall and a fourth side wall arranged in opposite positions in a radial direction of the air outlet air duct shell, the third side wall is provided with the third limiting part inwardly recessed towards the air outlet air duct shell, and the fourth side wall is provided with the fourth limiting part outwardly recessed towards the main air duct shell.

4. The air duct arrangement of claim 1, wherein, the air duct device further comprises a pin shaft fixed to the main air duct shell and rotationally connected with the air outlet air duct shell.

5. The air duct arrangement of claim 4, wherein the air duct device further comprises a rotation driving assembly drivingly connected with the air outlet air duct shell and used for driving the air outlet air duct shell to rotate relative to the main air duct shell.

6. The air duct arrangement of claim 5, wherein the air outlet air duct shell further comprises two second end walls arranged in opposite positions in an axial direction of the air outlet air duct shell; the main air duct shell further comprises two first end walls arranged in opposite positions in an axial direction of the air outlet air duct shell, the two first end walls are located between the two second end walls, each of the first end walls is provided with the pin shaft, and at least one of the two first end walls is provided with the rotation driving assembly.

7. The air duct arrangement of claim 6, wherein the rotation driving assembly comprises a driving member, a first gear and a second gear, the driving member is arranged on the first end wall, the first gear and the second gear are drivingly connected, the first gear is connected with an output end of the driving member, the second gear is arranged on the second end wall and rotationally connected with the pin shaft.

8. The air duct arrangement of claim 7, wherein the first end wall is provided with a first shaft hole, one side of the first end wall away from the second end wall is provided with a limiting groove, the second end wall is provided with a second shaft hole, and the second shaft hole passes through the rotation center of the second gear; the pin shaft comprises a first positioning part, a first shaft part and a second positioning part, the first shaft part passes through the first shaft hole to the second shaft hole, the first positioning part is in clamping connection with the limiting groove, and the second positioning part is in clamping connection with one side of the second gear away from the second end wall.

9. The air duct arrangement of claim 7, wherein, the first end wall is provided with a third shaft hole; The first gear includes a second shaft part, a gear body and a driving connection part, the second shaft part, the gear body and the driving connection part are sequentially arranged along the axial direction of the air outlet air duct shell, the second shaft part is rotatably installed in the third shaft hole, the gear body is in transmission connection with the second gear, and the driving connection part is connected with the output end of the driving member.

10. The air duct arrangement of claim 7, wherein, The driving member is configured as an electric motor, and the rotating driving assembly further includes a motor cover, the motor cover is installed on the electric motor, and the motor cover is installed on the first end wall through fasteners.

11. An air conditioner characterized by comprising: Comprise: An air conditioner main body comprising a shell, the shell having an air inlet and an air outlet; And The air duct device according to any one of claims 1 to 10, which is arranged in the cabinet to guide air flow from the air inlet to the air outlet, wherein a main air duct housing and an air outlet air duct housing of the air duct device are arranged in sequence from the air inlet to the air outlet, wherein a first swing position of the air duct device is close to a lower end of the air inlet, and wherein a second swing position of the air duct device is close to an upper end of the air inlet 。 12. The air conditioner of claim 11, wherein The air conditioner further comprises a fan and an indoor side heat exchanger, the fan is arranged in the main air duct shell of the air duct device, the fan is used to drive airflow to flow from the air inlet to the air outlet, and the indoor side heat exchanger is arranged in the shell and located between the air inlet and the fan.

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