Air conditioner

Abstract

The utility model discloses an air conditioner, which relates to the technical field of air conditioning, and comprises a casing, an air inlet, an air outlet, a first air inlet, a second air outlet, a first air outlet and a second air outlet, the air duct shell is rotatably arranged in the machine shell, an air duct is formed in the air duct shell, the air duct is provided with an air duct inlet and an air duct outlet, the air duct shell is provided with a limiting part, and the limiting part is used for being matched with a stop structure of the machine shell so as to limit the rotation angle of the air duct shell; the fan assembly is used for driving airflow to flow from the air inlet to the air outlet through the air duct; and the driving assembly is in driving connection with the air duct shell and used for driving the air duct shell to rotate so that the air duct outlet can selectively face the first air outlet area and / or the second air outlet area. According to the technical scheme, the air supply direction can be adjusted, when the direction of airflow is changed, local pressure loss at the air outlet can be reduced, the air supply volume of the air conditioner can be increased, long-distance air supply can be achieved, airflow vortex at the air outlet can be eliminated, and air supply noise can be lowered.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an air conditioner. Background Technology

[0002] Traditional air conditioners typically change the direction of airflow by installing rotating deflectors or grilles at the air outlet. This method of changing the airflow direction has the following drawbacks: First, it creates localized pressure loss at the air outlet, increasing airflow resistance and reducing the airflow volume. Second, it creates vortices at the air outlet, increasing the noise of the air conditioner and affecting the user experience. Third, due to the airflow loss, the air delivery distance is shortened, especially during heating. The loss of airflow, coupled with the distance between the air outlet and the wall, prevents a strong Coanda response, resulting in poor hot air landing and a short rolling distance along the ground, thus affecting heating efficiency. Utility Model Content

[0003] The main purpose of this utility model is to propose an air conditioner that can adjust the air supply direction, reduce local pressure loss at the air outlet when the airflow changes direction, increase the air supply volume, achieve long-distance air supply, eliminate airflow vortices at the air outlet, and reduce air supply noise.

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

[0005] The casing is provided with an air inlet and an air outlet, wherein the air outlet has at least a first air outlet area and a second air outlet area;

[0006] The air duct shell is rotatably disposed inside the housing. An air duct is formed inside the air duct shell. The air duct has an air duct inlet that connects to the air inlet and an air duct outlet that connects to the air outlet. The air duct shell has a limiting part that is used to cooperate with a stop structure on the housing to limit the rotation angle of the air duct shell.

[0007] A fan assembly, disposed within the housing, is used to drive airflow from the air inlet through the air duct to the air outlet; and

[0008] A drive assembly is driven to the duct housing, the drive assembly being used to drive the duct housing to rotate so that the duct outlet can selectively face the first air outlet area and / or the second air outlet area.

[0009] In one embodiment, the air conditioner further includes a heat exchange assembly disposed within the casing. The heat exchange assembly includes a heat exchanger and a frame disposed at one end of the heat exchanger. The drive assembly is fixed to the frame. The duct housing includes a housing body and a transmission part disposed on the housing body near the frame. The drive assembly and the transmission part are in a transmission engagement to drive the duct housing to rotate.

[0010] In one embodiment, the drive assembly includes a drive member fixed to the frame and a drive gear connected to the output shaft of the drive member. The transmission part and the shell body enclose a hollow cavity. The transmission part has multiple transmission teeth on the side near the hollow cavity. The multiple transmission teeth are arranged along the rotation direction of the air duct shell. The drive gear is located in the hollow cavity and meshes with the transmission teeth. The drive member is used to drive the drive gear and the transmission part to rotate, thereby driving the air duct shell to rotate.

[0011] In one embodiment, the housing has a chassis with a receiving cavity for accommodating the air duct shell. The chassis has a first sidewall and a second sidewall located on both sides of the receiving cavity. The air duct shell is rotatably connected to the first sidewall and the second sidewall at both ends along its axis of rotation.

[0012] In one embodiment, the stop structure is disposed on the chassis, and the stop structure includes a first stop portion and a second stop portion that are disposed opposite to and spaced apart along the rotation direction of the air duct shell, and the limiting portion is located between the first stop portion and the second stop portion. The first stop portion and the second stop portion are respectively used to limit the rotation angle of the air duct shell by engaging with the limiting portion.

[0013] In one embodiment, the first sidewall and / or the second sidewall are provided with an arc-shaped guide groove, and the end of the air duct shell is slidably disposed in the guide groove and can rotate around the arc center of the guide groove.

[0014] In one embodiment, the side of the first sidewall facing the second sidewall is provided with a concentrically arranged inner ring bearing support and an outer ring bearing support, and the guide groove is defined between the inner ring bearing support and the outer ring bearing support. The end of the air duct shell facing the first sidewall has a concentrically arranged inner ring arc surface and an outer ring arc surface. The inner ring arc surface slides in fit with the circumferential surface of the inner ring bearing support, and the outer ring arc surface slides in fit with the circumferential surface of the outer ring bearing support.

[0015] In one embodiment, the wind turbine assembly includes a wind turbine and a power component for driving the wind turbine to rotate. The wind turbine is rotatably mounted on the chassis, and the power component is fixed to the chassis. The power component has a power component end cap that mates with a second sidewall. The power component end cap forms a first half-hole bearing, and the second sidewall forms a second half-hole bearing. The first half-hole bearing and the second half-hole bearing together form a bearing hole. The end of the duct housing near the second sidewall is provided with an end shaft, which is rotatably inserted into the bearing hole.

[0016] In one embodiment, the end shaft is provided with a through hole, through which the shaft of the wind turbine passes to connect with the output shaft of the power component, and a notch communicating with the through hole is provided on the periphery of the end shaft.

[0017] In one embodiment, the duct housing includes a volute, a volute tongue, and a diffuser structure arranged sequentially along the airflow path. The volute has the duct inlet, and the diffuser structure has the duct outlet at one end away from the volute. The fan assembly is arranged corresponding to the duct inlet.

[0018] In one embodiment, the diffuser structure includes a first diffuser section and a second diffuser section that are arranged opposite to and spaced apart in the rotation direction of the air duct shell, and the distance between the first diffuser section and the second diffuser section increases from the side closer to the volute tongue toward the air duct outlet.

[0019] In one embodiment, the housing includes a chassis, a front frame, and a panel. The chassis and the panel are respectively disposed on opposite sides of the front frame. The air outlet is disposed at the bottom of the housing. The first air outlet area is located on the bottom side of the panel, and the second air outlet area is located between the bottom side of the first air outlet area and the chassis.

[0020] And / or, the air conditioner is configured as a split-type air conditioner or an integrated air conditioner with a wall-mounted indoor unit; or, the air conditioner is configured as a wall-mounted indoor unit.

[0021] The technical solution of this utility model involves incorporating a duct shell, a fan assembly, and a drive assembly within the housing. The duct shell forms a duct connecting the air inlet and outlet of the housing. The fan assembly drives airflow from the air inlet into the housing and then through the duct to the air outlet, achieving long-distance air delivery. The duct shell is rotatably mounted within the housing. A limiting part of the duct shell engages with a stop structure on the housing to limit the rotation angle of the duct shell, ensuring that it can rotate within a preset stroke and will not continue rotating after reaching a preset position. The drive assembly drives the duct shell to rotate, allowing the duct outlet to selectively face a first air outlet area and / or a second air outlet area, thereby adjusting the air delivery direction of the air conditioner. Therefore, there's no need for rotating guide vanes or grilles at the air outlet. Airflow direction can be adjusted simply by changing the rotation position of the duct housing. This reduces local pressure loss at the outlet, decreases airflow resistance, and increases the air volume delivered by the air conditioner. Furthermore, eliminating the need for rotating guide vanes or grilles at the outlet prevents vortex formation, reducing air conditioning noise and improving the user experience. Additionally, the fan-driven airflow is directed directly from the duct outlet to the air outlet, resulting in lower airflow resistance and minimizing airflow loss, enabling longer-distance air delivery. This solution allows for adjustment of the airflow direction, reduces local pressure loss at the outlet when the airflow changes direction, increases the air volume delivered by the air conditioner, achieves long-distance air delivery, and eliminates airflow vortices at the outlet, reducing noise. Attached Figure Description

[0022] 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.

[0023] Figure 1 A schematic diagram of the air outlet of the air conditioner in cooling mode provided by this utility model;

[0024] Figure 2 A schematic diagram of the air outlet of the air conditioner in heating mode provided by this utility model;

[0025] Figure 3 A cross-sectional structural schematic diagram of an embodiment of the air conditioner provided by this utility model;

[0026] Figure 4 for Figure 3 A cross-sectional structural diagram of another state of the central air conditioner;

[0027] Figure 5 for Figure 3 A cross-sectional structural diagram of another state of the central air conditioner;

[0028] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0029] Figure 7 A schematic diagram of the assembly structure of an embodiment of the chassis and air duct shell provided by this utility model;

[0030] Figure 8 for Figure 7 A magnified view of a section at point B in the middle;

[0031] Figure 9 for Figure 7 A magnified view of a section at point C;

[0032] Figure 10 A schematic diagram of a chassis embodiment provided by this utility model;

[0033] Figure 11 for Figure 10 A magnified view of a section at point D;

[0034] Figure 12 for Figure 10 A structural schematic diagram of the chassis from another perspective;

[0035] Figure 13 for Figure 12 A magnified view of a section at point E in the middle.

[0036] Explanation of icon numbers:

[0037] 100. Air conditioner; 10. Housing; 101. Air inlet; 102. Air outlet; 102a. First air outlet area; 102b. Second air outlet area; 11. Chassis; 111. Receiving cavity; 112. First side wall; 1121. Guide groove; 113. Second side wall; 1131. Second half-hole bearing; 114. Clearance hole; 115. First stop; 116. Second stop; 117. Inner ring bearing support; 118. Outer ring bearing support; 12. Face frame; 13. Panel; 14. Support frame; 20. Duct housing; 201. Duct; 202. Duct inlet; 203. Duct outlet; 204. Hollow cavity; 21. Housing body ; 211, volute; 2111, inner arc surface; 2112, outer arc surface; 212, volute tongue; 213, diffuser structure; 2131, first diffuser section; 2132, second diffuser section; 22, transmission part; 221, transmission gear; 23, limiting part; 24, end shaft; 241, perforation; 31, impeller; 32, power component end cover; 321, first half-hole bearing; 33, impeller bearing; 40, heat exchange assembly; 41, heat exchanger; 411, first front heat exchanger; 412, second front heat exchanger; 413, third front heat exchanger; 414, rear heat exchanger; 42, frame; 50, drive assembly; 51, drive component; 52, drive gear.

[0038] 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

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Traditional air conditioners typically change the direction of airflow by installing rotating deflectors or grilles at the air outlet. This method of changing the airflow direction has the following drawbacks: First, it creates localized pressure loss at the air outlet, increasing airflow resistance and reducing the airflow volume. Second, it creates vortices at the air outlet, increasing the noise of the air conditioner and affecting the user experience. Third, due to the airflow loss, the air delivery distance is shortened, especially during heating. The loss of airflow, coupled with the distance between the air outlet and the wall, prevents a strong Coanda response, resulting in poor hot air landing and a short rolling distance along the ground, thus affecting heating efficiency.

[0043] This utility model proposes an air conditioner 100 that can adjust the air supply direction, reduce the local pressure loss at the air outlet 102 when the airflow changes direction, increase the air supply volume of the air conditioner, achieve long-distance air supply, and eliminate airflow vortices at the air outlet 102, thereby reducing air supply noise.

[0044] The air conditioner 100 can be a split-type air conditioner (such as a split-type floor-standing unit, a split-type wall-mounted unit, etc.), an integrated air conditioner (such as a window unit, a portable air conditioner, etc.), or simply the indoor unit of a split-type air conditioner. In one embodiment, the air conditioner 100 is configured as a split-type air conditioner or an integrated air conditioner with a wall-mounted indoor unit; or, the air conditioner 100 is configured as a wall-mounted indoor unit.

[0045] The following example mainly uses the indoor unit of the wall-mounted air conditioner 100.

[0046] Please see Figures 1 to 4In one embodiment of this utility model, the air conditioner 100 includes a housing 10, a duct housing 20, a fan assembly, and a drive assembly 50. The housing 10 has an air inlet 101 and an air outlet 102, the air outlet 102 having at least a first air outlet region 102a and a second air outlet region 102b. The duct housing 20 is rotatably disposed within the housing 10, and an air duct 201 is formed inside the duct housing 20. The air duct 201 has an air inlet 202 communicating with the air inlet 101 and an air outlet 203 communicating with the air outlet 102. The duct housing 20 has a limiting portion 23 for engaging with the upper part of the housing 10. The stop structure cooperates to limit the rotation angle of the air duct shell 20; the fan assembly is located inside the housing 10 and is used to drive the airflow from the air inlet 101 through the air duct 201 to the air outlet 102; the drive assembly 50 is located inside the housing 10 and is drivenly connected to the air duct shell 20. The drive assembly 50 is used to drive the air duct shell 20 to rotate so that the air duct outlet 203 can selectively face the first air outlet area 102a and / or the second air outlet area 102b.

[0047] In this embodiment, the housing 10 provides an installation space for accommodating the air duct housing 20, the fan assembly, and the drive assembly 50. The heat exchange assembly 40 and the electrical control assembly of the air conditioner 100 can also be located within the installation space of the housing 10. The air inlet 101 is used to allow indoor air intake or introduce fresh outdoor air, and the air outlet 102 is used to allow indoor air exhaust. The positions of the air inlet 101 and the air outlet 102 can be designed according to the actual structure of the air conditioner 100, and can be located at the top, bottom, or at least one side of the housing 10. Optionally, the air inlet 101 is also provided with an air intake grille to prevent foreign objects from entering the housing 10 through the air inlet 101. The air outlet 102 has at least a first air outlet area 102a and a second air outlet area 102b, wherein the first air outlet area 102a and the second air outlet area 102b can be arranged side-by-side vertically or horizontally. It is worth noting that in some embodiments, the first air outlet area 102a and the second air outlet area 102b are completely connected to form a large-area air outlet 102, that is, there is no clear dividing line between the first air outlet area 102a and the second air outlet area 102b; in other embodiments, the air outlet 102 may include two mutually separated sub-air outlets 102, each sub-air outlet 102 forming an air outlet area, in which case there is a clear dividing line between the first air outlet area 102a and the second air outlet area 102b.

[0048] The duct housing 20 is rotatably disposed within the casing 10, and the duct housing 20 forms a duct 201 for connecting the air inlet 101 and the air outlet 102. The air inlet 202 of the duct 201 faces the side of the casing 10 where the air inlet 101 is located, and the air outlet 203 of the duct 201 faces the side of the casing 10 where the air outlet 102 is located. The fan assembly is disposed within the casing 10. The fan assembly can be completely disposed outside the duct housing 20 and opposite the air inlet 101, or it can be partially or completely housed within the duct housing 20, as long as it can drive the airflow at the air inlet 101 to flow along the duct 201 for a certain distance and then be discharged from the air outlet 102. The fan assembly includes, but is not limited to, cross-flow fans and centrifugal fans. For example, the fan assembly uses a cross-flow fan, and the extension direction of the duct housing 20 is consistent with the axial direction of the cross-flow fan, so that the portion of the duct housing 20 near the duct inlet 202 is constructed to form a cavity suitable for partially accommodating the cross-flow fan. The duct housing 20 can rotate around the axis of the impeller 31 of the fan assembly. The limiting portion 23 of the duct housing 20 cooperates with the stop structure on the housing 10 to limit the rotation angle of the duct housing 20, ensuring that the duct housing 20 can rotate within a preset stroke and will not continue to rotate after reaching a preset position.

[0049] The drive assembly 50 is driven to connect with the duct housing 20. The drive assembly 50 can be mounted on the housing 10 or on other components of the air conditioner 100 (such as the heat exchange assembly 50), as long as it allows for a drive connection between the drive assembly 50 and the duct housing 20. In practical applications, the rotation angle of the duct housing 20 can be adjusted according to the operating mode of the air conditioner 100, so that the duct outlet 203 of the duct housing 20 can selectively face the first air outlet area 102a and / or the second air outlet area 102b, thereby achieving adjustment of the airflow direction of the air conditioner 100. For example, when the duct outlet 203 of the duct housing 20 faces the first air outlet area 102a, the air outlet 102 delivers air through the first air outlet area 102a; when the duct outlet 203 of the duct housing 20 faces the second air outlet area 102b, the air outlet 102 delivers air through the second air outlet area 102b; when part of the duct outlet 203 of the duct housing 20 faces the first air outlet area 102a and part faces the second air outlet area 102b, the air outlet 102 can deliver air to both the first air outlet area 102a and the second air outlet area 102b. In some air outlet modes, the duct housing 20 can also be driven by the drive component 50 to continuously reciprocate for a period of time, so that the airflow of the air outlet 102 can oscillate back and forth, achieving oscillating air delivery.

[0050] The technical solution of this utility model involves providing an air duct shell 20, a fan assembly, and a drive assembly 50 within the housing 10. The air duct shell 20 forms an air duct 201 connecting the air inlet 101 and the air outlet 102 of the housing 10. The fan assembly drives airflow from the air inlet 101 into the housing 10 and then through the air duct 201 to the air outlet 102, achieving long-distance air delivery. The air duct shell 20 is rotatably disposed within the housing 10. A limiting part 23 of the air duct shell 20 cooperates with a stop structure on the housing 10 to limit the rotation angle of the air duct shell 20, ensuring that the air duct shell 20 can rotate within a preset stroke and will not continue to rotate after reaching a preset position. The drive assembly 50 drives the air duct shell 20 to rotate, allowing the air outlet 203 of the air duct shell 20 to selectively face the first air outlet area 102a and / or the second air outlet area 102b, thereby achieving air delivery direction adjustment of the air conditioner 100. Therefore, there is no need to install a rotating air guide plate or air guide grille at the air outlet 102. The air supply direction can be adjusted simply by adjusting the rotation position of the air duct housing 20. This reduces local pressure loss at the air outlet 102, reduces airflow resistance, and increases the air volume delivered by the air conditioner. Furthermore, eliminating the need for a rotating air guide plate or air guide grille at the air outlet 102 prevents the formation of vortices, reducing air conditioning noise and improving the user experience. Additionally, the fan assembly drives the airflow directly from the air outlet 203 of the air duct housing 20 to the air outlet 102, where air resistance is low, preventing airflow loss and enabling longer-distance air delivery. This solution allows for adjustment of the air supply direction, reduces local pressure loss at the air outlet 102 when the airflow changes direction, increases the air volume delivered by the air conditioner, achieves long-distance air delivery, and eliminates airflow vortices at the air outlet 102, reducing air supply noise.

[0051] like Figures 1 to 3As shown, taking the indoor unit of a wall-mounted air conditioner 100 as an example, the casing 10 can be formed by a chassis 11, a front frame 12, and a panel 13. The top of the casing 10 has an air inlet 101, and the bottom of the casing 10 has an air outlet 102. The air outlet 102 has a first air outlet area 102a and a second air outlet area 102b. The first air outlet area 102a is located above the second air outlet area 102b and is closer to the panel 12 of the casing 10 than the second air outlet area 102b. The second air outlet area 102b is located on the bottom side of the casing 10. A heat exchange assembly 40 is also provided inside the casing 10. The heat exchange assembly 40 is located between the air inlet 101 and the fan assembly, which can be configured as a cross-flow fan. The heat exchange assembly 40 is disposed between the air inlet 101 and the fan assembly. When the fan assembly is running, the airflow enters the casing 10 from the air inlet 101 and exchanges heat with the heat exchange assembly 40, then is blown by the fan assembly to the duct shell 20, and then guided by the duct 201 of the duct shell 20 to the air outlet 102 for discharge. The heat exchange assembly 40 includes a heat exchanger 41 for achieving heat exchange. Optionally, the heat exchanger 41 includes a front heat exchanger disposed opposite to the front side of the fan assembly, and a rear heat exchanger 414 disposed opposite to the rear side of the fan assembly. The front heat exchanger and the rear heat exchanger 414 are arranged at an angle so that the fan assembly can be completely accommodated within the area enclosed by the heat exchange assembly 40 and the duct shell 20, thereby improving heat exchange efficiency. Optionally, as Figure 5 As shown, the front heat exchanger may include a first front heat exchanger 411, a second front heat exchanger 412, and a third front heat exchanger 413 arranged sequentially from top to bottom, so that the front heat exchanger has a larger heat exchange area. Optionally, the housing 10 also includes a support frame 14 disposed inside the panel 13, which can support the heat exchange assembly 40.

[0052] Taking this air conditioner 100 as an example, which is a cooling and heating type air conditioner, such as Figure 1 As shown, in cooling mode, the drive assembly 50 drives the air duct housing 20 to rotate to the first position. At this time, the air duct outlet 203 of the air duct housing 20 faces the first air outlet area 102a, which can realize air supply to the first air outlet area 102a. In this way, the cold air can be sent out from a relatively high position, which is beneficial to make the cold air sink downward after being blown out from a high position for a certain distance, so as to achieve a rapid cooling effect. Figure 2As shown, in heating mode, the drive component 50 drives the duct housing 20 to rotate to the second position. At this time, the duct outlet 203 of the duct housing 20 faces the second air outlet area 102b, which can realize air supply to the second air outlet area 102b. In this way, the hot airflow can be sent downward vertically or obliquely, which is conducive to the hot airflow being blown to a lower position and then rising again to achieve a rapid heating effect. In addition, in heating mode, due to the reduced airflow loss of the air outlet 102, the airflow is increased and the air delivery distance is longer. Moreover, the duct outlet 203 of the duct housing 20 is closer to the wall, so that the airflow sent from the air outlet 102 can reach the wall, forming a strong Coanda effect. The hot air jet is more convergent, the hot air landing is better, the hot air rolls a longer distance along the ground, and the indoor temperature rise rate and temperature uniformity are significantly improved. The good landing of the hot air alleviates the feeling of dryness in the room to a certain extent, which can further improve the user experience.

[0053] like Figures 4 to 6 As shown, in one embodiment, the air conditioner 100 further includes a heat exchange assembly 40 disposed in the casing 10. The heat exchange assembly 40 includes a heat exchanger 41 and a frame 42 disposed at one end of the heat exchanger 41. A drive assembly 50 is fixed to the frame 42. The air duct shell 20 includes a shell body 21 and a transmission part 22 disposed on the side of the shell body 21 near the frame 42. The drive assembly 50 and the transmission part 22 are in a transmission cooperation to drive the air duct shell 20 to rotate.

[0054] In this embodiment, the frame 42 serves to fix and support the heat exchanger 41, and also acts as a mounting carrier for the drive assembly 50, allowing it to be installed in a more suitable position for driving and engaging with the duct shell 20, resulting in a more compact overall structure. The duct shell 20 includes a shell body 21 and a transmission part 22 disposed on the shell body 21. An air duct 201 is formed inside the shell body 21. The transmission part 22 transmits the power output from the drive assembly 50 to the shell body 21, causing the duct shell 20 to rotate. The power transmission between the drive assembly 50 and the transmission part 22 can be achieved through, but is not limited to, a gear set structure, a synchronous belt pulley structure, or a connecting rod structure. The transmission part 22 and the shell body 21 can be an integral structure or separate structures assembled later. Optionally, the transmission part 22 is integrally formed into the shell body 21, which simplifies the manufacturing process and makes the overall structure more stable and reliable.

[0055] like Figure 6 and Figure 8As shown, in one embodiment, the drive assembly 50 includes a drive member 51 fixed to the frame 42 and a drive gear 52 connected to the output shaft of the drive member 51. The transmission part 22 and the shell body 21 enclose to form a hollow cavity 204. The transmission part 22 has a plurality of transmission teeth 221 on the side near the hollow cavity 204. The plurality of transmission teeth 221 are arranged along the rotation direction of the air duct shell 20. The drive gear 52 is located inside the hollow cavity 204 and meshes with the transmission teeth 221. The drive member 51 is used to drive the drive gear 52 and the transmission part 22 to rotate, so as to drive the air duct shell 20 to rotate.

[0056] In this embodiment, the driving component 51 is a power source capable of outputting rotational torque, including but not limited to a drive motor or a rotary cylinder. Optionally, the driving component 51 is a drive motor, which is easy to control, occupies little space, and has low cost. The transmission part 22 has an arc-shaped rack and pinion structure, with both ends of the transmission part 22 connected to the shell body 21, forming a hollow cavity 204 between the transmission part 22 and the shell body 21. The inner edge of the transmission part 22 is provided with multiple transmission teeth 221 along the circumferential direction, and the drive gear 52 is located in the hollow cavity 204 and meshes with the transmission teeth 221 to achieve transmission. When it is necessary to adjust the rotation angle of the air duct shell 20, the driving component 51 drives the drive gear 52 to rotate, which in turn drives the transmission part 22 with transmission teeth 221 to rotate, and the transmission part 22 drives the air duct shell 20 to rotate as a whole. The entire drive structure is simple, stable, and reliable.

[0057] like Figure 7 and Figure 10 As shown, in one embodiment, the housing 10 has a chassis 11, the chassis 11 is provided with a receiving cavity 111 for accommodating the air duct housing 20, the chassis 11 has a first sidewall 112 and a second sidewall 113 located on both sides of the receiving cavity 111, and the two ends of the air duct housing 20 along its rotation axis are rotatably connected to the first sidewall 112 and the second sidewall 113 respectively.

[0058] In this embodiment, the housing 10 includes a chassis 11 and a face frame 12 disposed on one side of the chassis 11. The air duct shell 20, the fan assembly, and the heat exchange assembly 40 are located within the area enclosed by the chassis 11 and the face frame 12. The chassis 11 is located behind the face frame 12. The top of the face frame 12 is provided with an air inlet 101, and the bottom of the face frame 12 is provided with an air outlet 102. The chassis 11 is generally V-shaped with an open top. An accommodating cavity 111 is constructed inside the chassis 11. The air duct shell 20 is rotatably accommodated in the accommodating cavity 111. In this way, the internal space of the chassis 11 can be fully utilized. The bottom of the chassis 11 is also provided with a clearance opening for the expansion and swing of the diffuser structure 213 of the air duct shell 20. The rotation axis of the duct housing 20 is consistent with the rotation axis of the fan assembly. The two ends of the duct housing 20 along its rotation axis are rotatably connected to the first side wall 112 and the second side wall 113 of the chassis 11, respectively. The two side walls of the chassis 11 can provide more stable support for the duct housing 20, so that the rotation of the duct housing 20 is more stable and reliable.

[0059] like Figure 5 and Figure 6 As shown, in one embodiment, a stop structure is provided on the chassis 11. The stop structure includes a first stop portion 115 and a second stop portion 116 that are opposite to and spaced apart along the rotation direction of the air duct shell 20. A limiting portion 23 is located between the first stop portion 115 and the second stop portion 116. The first stop portion 115 and the second stop portion 116 are respectively used to limit the rotation angle of the air duct shell 20 by engaging with the limiting portion 23.

[0060] In this embodiment, the duct housing 20 includes a housing body 21 and a limiting portion 23 disposed on the housing body 21. The limiting portion 23 and the housing body 21 can be integrally formed or they can be separate structures that are then assembled. Optionally, the limiting portion 23 is integrally formed on the housing body 21, which simplifies the manufacturing process and makes the overall structure more stable and reliable. The limiting portion 23 has a first limiting surface facing the first stop portion 115 and a second limiting surface facing the second stop portion 116. When the duct housing 20 is in a first position, the first limiting surface engages with the first stop portion 115; when the duct housing 20 is in a second position, the second limiting surface engages with the second stop portion 116. In this way, the rotation angle of the duct housing 20 can be limited so that the duct outlet 203 of the duct housing 20 can accurately face the preset air outlet area. The chassis 11 may be provided with a clearance hole 114 through which the limiting part 23 passes. The clearance hole 114 is an elongated hole extending along the rotation direction of the air duct shell 20, so that the limiting part 23 has a certain degree of freedom of movement within the clearance hole 114. The chassis 11 is provided with a first stop part 115 and a second stop part 116 on opposite sides of the clearance hole 114. The first stop part 115 and the second stop part 116 are respectively used to limit the movement of the limiting part 23 to limit the rotation angle of the air duct shell 20. In one embodiment, the air duct shell 20 includes a shell body 21 and a transmission part 22 disposed in the shell body 21. The shell body 21 is housed in the receiving cavity 111 of the chassis 11, and the transmission part 22 is disposed on the side of the shell body 21 near the first side wall 112 and located at the top of the shell body 21.

[0061] like Figure 10 and Figure 11 As shown, in one embodiment, the first sidewall 112 and / or the second sidewall 113 are provided with an arc-shaped guide groove 1121, and the end of the air duct shell 20 is slidably disposed in the guide groove 1121 and can rotate around the arc center of the guide groove 1121.

[0062] In this embodiment, by providing an arc-shaped guide groove 1121 on the first sidewall 112 and / or the second sidewall 113, the end of the air duct shell 20 is configured to fit the shape of the guide groove 1121, and the end of the air duct shell 20 is accommodated in the guide groove 1121. When the drive assembly 50 drives the air duct shell 20 to rotate, the rotation of the air duct shell 20 can be guided by the guide groove 1121, so that the air duct shell 20 rotates around the arc center of the guide groove 1121 along the arc trajectory defined by the guide groove 1121, so as to prevent the air duct shell 20 from deflecting during the rotation. For example, a guide groove 1121 can be provided on the side of the first sidewall 112 facing the second sidewall 113, and the end of the duct shell 20 facing the first sidewall 112 can be slidably accommodated in the guide groove 1121 of the first sidewall 112; or, a guide groove 1121 can be provided on the side of the second sidewall 113 facing the first sidewall 112, and the end of the duct shell 20 facing the second sidewall 113 can be slidably accommodated in the guide groove 1121 of the second sidewall 113; or, both the first sidewall 112 and the second sidewall 113 can be provided with guide grooves 1121, and both ends of the duct shell 20 can be slidably accommodated in the guide grooves 1121 on both sides.

[0063] like Figure 6 and Figure 11 As shown, in one embodiment, the side of the first sidewall 112 facing the second sidewall 113 is provided with a concentrically arranged inner ring bearing support 117 and an outer ring bearing support 118. A guide groove 1121 is defined between the inner ring bearing support 117 and the outer ring bearing support 118. The end of the air duct shell 20 facing the first sidewall 112 has a concentrically arranged inner ring arcuate surface 2111 and an outer ring arcuate surface 2112. The inner ring arcuate surface 2111 slides with the circumferential surface of the inner ring bearing support 117, and the outer ring arcuate surface 2112 slides with the circumferential surface of the outer ring bearing support 118.

[0064] In this embodiment, the inner ring bearing support 117 and the outer ring bearing support 118 are arranged in a semi-circular shape with an open top facing the first sidewall 112. The inner ring bearing support 117 is arranged around the outer periphery of the impeller bearing 33 of the wind turbine assembly to support the impeller bearing 33. The outer ring bearing support 118 is arranged around the outer periphery of the inner ring bearing (i.e., the side away from the impeller bearing 33). An arc-shaped guide groove 1121 is formed between the inner ring bearing support 117 and the outer ring bearing support 118. The end of the duct shell 20 facing the first sidewall 112 is shaped to fit the guide groove 1121, so that the duct shell 20 has an inner arc-shaped surface 2111 facing the inner ring bearing support 117 and an outer arc-shaped surface 2112 facing the outer ring bearing support 118. The inner ring arc-shaped surface 2111 is adapted to the outer peripheral surface of the inner ring bearing support 117 to form a sliding fit, and the outer ring arc-shaped surface 2112 is adapted to the inner peripheral surface of the outer ring bearing support 118 to form a sliding fit. Thus, the inner and outer ring support bearings can support the end of the duct housing 20 and limit its axial movement. Simultaneously, the constructed guide groove 1121 guides the rotation of the duct housing 20, allowing it to rotate along a preset trajectory without axial movement, making the installation and rotation of the duct housing 20 more stable and reliable.

[0065] like Figure 3 , Figure 9 , Figure 12 and Figure 13 As shown, in one embodiment, the fan assembly includes a fan wheel 31 and a power component for driving the fan wheel 31 to rotate. The fan wheel 31 is rotatably mounted on the chassis 11, and the power component is fixed to the chassis 11. The power component has a power component end cap 32 that cooperates with the second side wall 113. The power component end cap 32 forms a first half-hole bearing 321, and the second side wall 113 forms a second half-hole bearing 1131. The first half-hole bearing 321 and the second half-hole bearing 1131 surround to form a bearing hole. The end of the air duct shell 20 near the second side wall 113 is provided with an end shaft 24, which is rotatably inserted into the bearing hole.

[0066] In this embodiment, both the impeller 31 and the duct shell 20 are rotatably connected to the chassis 11. The duct shell 20 is at least partially surrounding the outer periphery of the impeller 31, and the drive assembly 40 is used to drive the duct shell 20 to rotate around the axis of the impeller 31. During air conditioning operation, the impeller 31 can rotate around its own axis, and the duct shell 20 can rotate around the impeller 31 to adjust the airflow direction. Because the duct shell 20 rotates entirely around the axis of the impeller 31, the relative distance between the inner wall of the duct 201 and the impeller 31 remains unchanged, thus ensuring that the duct 201 maintains a good airflow guiding effect and that the movement of the duct shell 20 does not interfere with or affect the operation of the impeller 31. Optionally, the impeller 31 is a cross-flow impeller 31 extending along the length of the casing 10. The power unit can be a drive motor fixed to the chassis 11. The output shaft of the power unit is driven and connected to the impeller 31. The power unit drives the impeller 31 to rotate, thereby driving the airflow along the air duct shell 20 to the air outlet 102. The power unit can be fixed to the second side wall 113 by the power unit end cover 32 to fix the power unit to the chassis 11. The power component end cap 32 can be located on the top of the second side wall 113. The bottom side of the power component end cap 32 forms a downward-opening first half-hole bearing 321, and the top side of the second side wall 113 forms an upward-opening second half-hole bearing 1131. When the power component end cap 32 and the second side wall 113 are assembled in place, the open side of the first half-hole bearing 321 and the open side of the second half-hole bearing 1131 are connected and surround to form a bearing hole. The end shaft 24 of the air duct shell 20 is housed in the bearing hole. The first half-hole bearing 321 and the second half-hole bearing 1131 can provide stable support for the end shaft 24 and limit the radial movement of the end shaft 24, making the installation and rotation of the air duct shell 20 more stable and reliable. Furthermore, the first half-bore bearing 321 and the second half-bore bearing 1131 are constructed by the structure of the motor end cover 32 and the second side wall 113, respectively. There is no need to set up other bearing structures for supporting the air duct shell 20, which makes the installation structure of the air duct shell 20 simpler and more compact, which helps to reduce the space occupied and reduce costs.

[0067] like Figure 9 As shown, in one embodiment, the end shaft 24 has a through hole 241 through which the rotating shaft of the impeller 31 passes to connect with the output shaft of the power component. The circumference of the end shaft 24 has a notch communicating with the through hole 241. This allows the end shaft 24 to have a certain deformability, facilitating the assembly of the impeller 31's rotating shaft into the through hole 241, enabling the power component to drive the impeller 31 to rotate. Furthermore, the end shaft 24 also functions as a bearing to support the impeller 31, making the installation structure of the impeller 31 simpler and more compact, thus reducing space requirements and costs.

[0068] like Figure 3As shown, in one embodiment, the air duct housing 20 includes a volute 211, a volute tongue 212 and a diffuser structure 213 arranged sequentially along the airflow path. The volute 211 is provided with an air duct inlet 202, and the diffuser structure 213 is provided with an air duct outlet 203 at one end away from the volute 211. The fan assembly is provided corresponding to the air duct inlet 202.

[0069] In this embodiment, the volute 211, volute tongue 212, and diffuser structure 213 together form the shell body 21 of the duct shell 20. The fan assembly can be partially housed within the volute 211 and is positioned corresponding to the duct inlet 202. Optionally, the volute 211, volute tongue 212, and diffuser structure 213 are integrally formed, facilitating manufacturing. When the duct shell 20 moves, the volute 211, volute tongue 212, and diffuser structure 213 can move together. Thus, when adjusting the airflow direction, the overall structure of the duct 201 remains unchanged, ensuring that the duct 201 always achieves optimal airflow guidance and diffusion effects, avoiding localized pressure loss and eddies caused by only the volute tongue 212 or the diffuser structure 213 rotating.

[0070] like Figure 3 As shown, in one embodiment, the diffuser structure 213 includes a first diffuser section 2131 and a second diffuser section 2132 that are arranged opposite to and spaced apart in the rotation direction of the duct shell 20. The distance between the first diffuser section 2131 and the second diffuser section 2132 increases from the side closer to the volute tongue 212 toward the duct outlet 203.

[0071] In this embodiment, the end of the first diffuser section 2131 furthest from the air duct outlet 203 is connected to the volute tongue 212, and the end of the second diffuser section 2132 furthest from the air duct outlet 203 is connected to the volute 211. A diffuser duct is formed between the first diffuser section 2131 and the second diffuser section 2132. The air passage area of ​​the diffuser duct gradually increases from the side closer to the volute tongue 212 toward the air duct outlet 203, which can achieve a better diffuser effect, thereby realizing air delivery over a longer distance. Furthermore, the first diffuser section 2131 and the second diffuser section 2132 have a certain tilt angle, which can guide the airflow to a certain tilt angle, which is beneficial to achieving oblique air delivery. For example, in heating mode, the air duct housing 20 rotates downward at a certain angle, allowing the airflow to blow obliquely along the air duct 201 toward the bottom of the air conditioner 100, so that the airflow delivered from the air outlet 102 can reach the wall, forming a strong Coanda effect. The hot air stream is more convergent, the hot air falls to the ground better, the hot air rolls a longer distance along the ground, and the indoor temperature rise rate and temperature uniformity are significantly improved. The good hot air falls to the ground, which to some extent alleviates the feeling of dryness in the room and can further improve the user experience.

[0072] Based on the above embodiments, such as Figures 1 to 3As shown, in one embodiment, the housing 10 includes a chassis 11, a front frame 12, and a panel 13. The chassis 11 and the panel 13 are respectively located on opposite sides of the front frame 12. The air outlet 102 is located at the bottom of the housing 10. The first air outlet area 102a is located on the bottom side of the panel 13, and the second air outlet area 102b is located between the bottom side of the first air outlet area 102a and the chassis 11.

[0073] In this embodiment, the panel 13 is located on the front side of the frame 12, and the chassis 11 is located on the side of the frame 12 opposite to the panel 13. The first air outlet area 102a is located on the bottom side of the panel 13. The first air outlet area 102a can be an arc-shaped area extending downward from the bottom side of the panel 13 and then extending towards the chassis 11. In cooling mode, the air outlet 203 of the air duct housing 20 can be directed towards the first air outlet area 102a so that the cold air is sent out from the first air outlet area 102a, achieving air outlet at a higher position. In this way, the cold air can be sent out from a relatively high position, which is beneficial for the cold air to fall downward after being blown out a certain distance from a high position, so as to achieve a better cooling effect. The second air outlet area 102b is located between the bottom side of the first air outlet area 102a and the chassis 11, so that the second air outlet area 102b is closer to the bottom of the housing 10 than the first air outlet area 102a. In heating mode, the air outlet 203 of the duct housing 20 can be oriented towards the second air outlet area 102b, so that the hot airflow is sent out from the second air outlet area 102b. In this way, the hot airflow can be sent downward, which is conducive to the hot airflow blowing to a lower position and then rising, so as to achieve a rapid heating effect. In addition, in heating mode, due to the reduced air volume loss of the air outlet 102, the air volume is increased and the air delivery distance is longer. Moreover, the air outlet 203 of the duct housing 20 is closer to the wall, so that the airflow sent out by the air outlet 102 can reach the wall, forming a strong Coanda effect. The hot air jet is more convergent, the hot air landing is better, the hot air rolls a longer distance along the ground, and the indoor temperature rise rate and temperature uniformity are significantly improved. The good landing of the hot air alleviates the feeling of dryness in the room to a certain extent, which can further improve the user experience.

[0074] 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 conditioner (100), characterized in that, include: The housing (10) is provided with an air inlet (101) and an air outlet (102), wherein the air outlet (102) has at least a first air outlet area (102a) and a second air outlet area (102b). The air duct shell (20) is rotatably disposed inside the housing (10). An air duct (201) is formed inside the air duct shell (201). The air duct (201) has an air duct inlet (202) that connects to the air inlet (101) and an air duct outlet (203) that connects to the air outlet (102). The air duct shell (20) has a limiting part (23). The limiting part (23) is used to cooperate with the stop structure on the housing (10) to limit the rotation angle of the air duct shell (20). A fan assembly, disposed within the housing (10), is used to drive airflow from the air inlet (101) through the air duct (201) to the air outlet (102); and A drive assembly (50) is driven to the duct housing (20) and is used to drive the duct housing (20) to rotate so that the duct outlet (203) can selectively face the first air outlet area (102a) and / or the second air outlet area (102b).

2. The air conditioner (100) as described in claim 1, characterized in that, The air conditioner (100) further includes a heat exchange assembly (40) disposed in the housing (10). The heat exchange assembly (40) includes a heat exchanger (41) and a frame (42) disposed at one end of the heat exchanger (41). The drive assembly (50) is fixed to the frame (42). The air duct housing (20) includes a housing body (21) and a transmission part (22) disposed on the side of the housing body (21) near the frame (42). The drive assembly (50) and the transmission part (22) are in a transmission cooperation to drive the air duct housing (20) to rotate.

3. The air conditioner (100) as described in claim 2, characterized in that, The drive assembly (50) includes a drive member (51) fixed to the frame (42) and a drive gear (52) connected to the output shaft of the drive member (51). The transmission part (22) and the shell body (21) enclose to form a hollow cavity (204). The transmission part (22) has multiple transmission teeth (221) on the side near the hollow cavity (204). The multiple transmission teeth (221) are arranged along the rotation direction of the air duct shell (20). The drive gear (52) is located inside the hollow cavity (204) and meshes with the transmission teeth (221). The drive member (51) is used to drive the drive gear (52) and the transmission part (22) to rotate, so as to drive the air duct shell (20) to rotate.

4. The air conditioner (100) as described in claim 1, characterized in that, The housing (10) has a chassis (11) with a receiving cavity (111) for accommodating the air duct housing (20). The chassis (11) has a first sidewall (112) and a second sidewall (113) located on both sides of the receiving cavity (111). The air duct housing (20) is rotatably connected to the first sidewall (112) and the second sidewall (113) at both ends along its rotation axis.

5. The air conditioner (100) as described in claim 4, characterized in that, The stop structure is provided on the chassis (11). The stop structure includes a first stop part (115) and a second stop part (116) that are arranged opposite to each other and spaced apart along the rotation direction of the air duct shell (20). The limiting part (23) is located between the first stop part (115) and the second stop part (116). The first stop part (115) and the second stop part (116) are respectively used to limit the rotation angle of the air duct shell (20) by limiting the limiting part (23).

6. The air conditioner (100) as described in claim 4, characterized in that, The first sidewall (112) and / or the second sidewall (113) are provided with an arc-shaped guide groove (1121), and the end of the air duct shell (20) is slidably disposed in the guide groove (1121) and can rotate around the arc center of the guide groove (1121).

7. The air conditioner (100) as described in claim 6, characterized in that, The first sidewall (112) facing the second sidewall (113) is provided with a concentric inner ring bearing support (117) and an outer ring bearing support (118). The guide groove (1121) is defined between the inner ring bearing support (117) and the outer ring bearing support (118). The end of the air duct shell (20) facing the first sidewall (112) has a concentric inner ring arc surface (2111) and an outer ring arc surface (2112). The inner ring arc surface (2111) slides with the circumferential surface of the inner ring bearing support (117), and the outer ring arc surface (2112) slides with the circumferential surface of the outer ring bearing support (118).

8. The air conditioner (100) as described in claim 4, characterized in that, The fan assembly includes a fan wheel (31) and a power component for driving the fan wheel (31) to rotate. The fan wheel (31) is rotatably mounted on the chassis (11). The power component is fixed to the chassis (11). The power component has a power component end cap (32) that cooperates with the second side wall (113). The power component end cap (32) forms a first half-hole bearing (321). The second side wall (113) forms a second half-hole bearing (1131). The first half-hole bearing (321) and the second half-hole bearing (1131) surround to form a bearing hole. The air duct shell (20) has an end shaft (24) at one end near the second side wall (113). The end shaft (24) is rotatably inserted into the bearing hole.

9. The air conditioner (100) as described in claim 8, characterized in that, The end shaft (24) is provided with a through hole (241), and the rotating shaft of the wind turbine (31) passes through the through hole (241) to connect with the output shaft of the power component. The circumference of the end shaft (24) is provided with a notch that communicates with the through hole (241).

10. The air conditioner (100) as claimed in claim 1, characterized in that, The air duct housing (20) includes a volute (211), a volute tongue (212), and a diffuser structure (213) arranged sequentially along the airflow path. The volute (211) is provided with the air duct inlet (202), and the diffuser structure (213) is provided with the air duct outlet (203) at one end away from the volute (211). The fan assembly is provided corresponding to the air duct inlet (202).

11. The air conditioner (100) as claimed in claim 10, characterized in that, The diffuser structure (213) includes a first diffuser section (2131) and a second diffuser section (2132) that are arranged opposite to and spaced apart in the rotation direction of the air duct shell (20). The distance between the first diffuser section (2131) and the second diffuser section (2132) increases from the side closer to the volute tongue (212) toward the air duct outlet (203).

12. The air conditioner (100) as claimed in any one of claims 1 to 11, characterized in that, The housing (10) includes a chassis (11), a front frame (12), and a panel (13). The chassis (11) and the panel (13) are respectively located on opposite sides of the front frame (12). The air outlet (102) is located at the bottom of the housing (10). The first air outlet area (102a) is located on the bottom side of the panel (13), and the second air outlet area (102b) is located between the bottom side of the first air outlet area (102a) and the chassis (11). And / or, the air conditioner (100) is configured as a split air conditioner (100) with a wall-mounted indoor unit or an integrated air conditioner (100); or, the air conditioner (100) is configured as a wall-mounted indoor unit.

Images