Fan assembly, air duct assembly and air conditioner having the same

Abstract

The utility model discloses a fan assembly, air duct subassembly and air conditioner with it, fan assembly includes: motor cover, motor cover includes body and first flanging, and first flanging is connected in the lower end of body and extends along the width direction of body, motor is located on the body, wind wheel, wind wheel is fixed on the output shaft of motor and is spaced apart with motor cover, in the direction from top to bottom, and first flanging is inclined to the side of wind wheel. According to the fan assembly of the utility model, the condensate water in the fan assembly can be guided, so that the condensate water flows to the water pan of air conditioner along the inclined direction of first flanging, the probability that the condensate water in the fan assembly flows to the area outside the water pan can be reduced, the situation that the shell of air conditioner drips water or the situation that the components in the shell short circuit can be avoided, the maintenance frequency of air conditioner is reduced, the use experience of user is improved, and the motor cover can be conveniently self-stacked, which is beneficial to incoming material and automation.

Description

Technical Field

[0001] This utility model relates to the field of air handling equipment technology, and in particular to a fan assembly, an air duct assembly, and an air conditioner having the same. Background Technology

[0002] In air conditioners of the relevant technology, when the fan wheel rotates at high speed, the airflow disturbance can easily cause the condensate adhering to the inner wall of the evaporator or volute to be swept up by the airflow, forming splashes or secondary evaporation. Some of the condensate may not be effectively guided to the drip tray, but instead drip directly into the fan or overflow onto the air conditioner casing, resulting in the risk of leakage or damage to electrical components. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a fan assembly that can guide condensate water, reducing the probability of condensate water flowing outside the drip tray, preventing dripping from the air conditioner or short circuits in internal components, and reducing the frequency of air conditioner maintenance.

[0004] This utility model also proposes an air duct assembly, which includes the above-mentioned fan assembly.

[0005] This utility model also proposes an air conditioner, which includes the above-mentioned air duct assembly.

[0006] According to an embodiment of the present utility model, the fan assembly includes: a motor cover plate, the motor cover plate including a body and a first flange, the first flange being connected to the lower end of the body and extending along the width direction of the body; a motor, the motor being disposed on the body; and a fan wheel, the fan wheel being fixed on the output shaft of the motor and spaced apart from the motor cover plate, wherein the first flange is inclined toward the fan wheel in the direction from top to bottom.

[0007] According to an embodiment of the present invention, the fan assembly includes a main body and a first flange via a motor cover plate. The first flange is connected to the lower end of the main body and is inclined towards the impeller side in the top-to-bottom direction. On the one hand, the inclined first flange can guide the condensate in the fan assembly, allowing the condensate to flow along the inclined direction of the first flange into the guide groove of the lower volute and then into the water collection tray of the air conditioner. This reduces the probability of condensate flowing outside the water collection tray, preventing water dripping from the air conditioner casing or short circuits in the components inside the casing, reducing the maintenance frequency of the air conditioner, and improving the user experience. On the other hand, the inclined first flange facilitates the self-stacking of the motor cover plate, which is beneficial for material handling and automation.

[0008] In addition, the fan assembly according to this utility model may also have the following additional technical features:

[0009] In some embodiments, the upper surface of the first flange is provided with two water guide ribs, which are located at opposite ends of the width direction of the first flange and spaced apart. In the direction from the body to the impeller, the two water guide ribs extend toward each other.

[0010] In some embodiments, the motor cover further includes two second flanges, which are respectively connected to both ends of the body in the width direction. The second flanges extend in the vertical direction, and in the direction from the body to the wind turbine, the two second flanges are inclined in a direction away from each other.

[0011] In some embodiments, the angle between the first flange and the horizontal direction is A, and satisfies: 2°≤A≤10°; and / or, the angle between the arrangement direction of the body and the wind turbine and the second flange is B, and satisfies: 2°≤B≤10°.

[0012] In some embodiments, a first reinforcing structure is provided at the connection position between the body and the second flange; and / or, a third flange is provided at the end of the second flange away from the body, the third flange extending in the vertical direction, and a second reinforcing structure is provided at the connection position between the third flange and the second flange.

[0013] In some embodiments, a third reinforcing structure is provided at the connection position between the body and the first flange; and / or, a fourth reinforcing structure is provided at the upper end and / or lower end of the body, the fourth reinforcing structure extending along the width direction of the body.

[0014] In some embodiments, the body has a first boss protruding toward a side away from the wind turbine, the first boss has a fixing hole, the motor passes through the fixing hole, and along the radial direction of the wind turbine, the outer edge of the bottom wall of the first boss is located outside the outer edge of the wind turbine.

[0015] In some embodiments, along the arrangement direction of the body and the impeller, the minimum gap between the impeller and the bottom wall of the first boss is C, and satisfies: 10mm≤C≤25mm.

[0016] In some embodiments, the first boss is provided with a first reinforcing rib, which extends along the circumferential direction of the fixing hole; and / or, the first boss is provided with a plurality of second reinforcing ribs, which all extend along the radial direction of the fixing hole and are spaced apart in the circumferential direction of the fixing hole.

[0017] In some embodiments, the first protrusion has a recessed platform facing toward the side near the wind turbine, and the fixing hole is provided on the recessed platform.

[0018] In some embodiments, the recessed platform is provided with a third reinforcing rib, which extends along the circumferential direction of the fixing hole; and / or, the recessed platform is provided with a plurality of second protrusions protruding toward the side opposite to the wind turbine, the plurality of second protrusions being spaced apart in the circumferential direction of the fixing hole.

[0019] In some embodiments, a fixing plate is provided on the side of the platform facing away from the wind turbine. The fixing plate surrounds the fixing hole. A radially outwardly recessed wiring groove is provided on the inner wall of the fixing hole. A folded edge is provided at the end of the fixing plate facing away from the wind turbine. Along the extension direction of the fixing plate, the folded edge is arranged opposite to the wiring groove. The folded edge bends and extends in a direction away from the center line of the fixing hole.

[0020] In some embodiments, the body has a fixing hole, the motor passes through the fixing hole, and the fan assembly further includes a motor sealing plate, the motor sealing plate is disposed on the side of the body away from the impeller, for sealing the fixing hole, and the motor sealing plate is connected to the motor cover plate by a first fastener and / or snap-fit ​​connection.

[0021] In some embodiments, the motor sealing plate and the motor cover plate are connected and snap-fitted together by the first fastener, and the number of the first fastener is less than 3.

[0022] In some embodiments, the motor sealing plate is provided with a plurality of buckles, which are spaced apart in the circumferential direction of the motor sealing plate. The body is provided with a plurality of mounting holes corresponding one-to-one with the plurality of buckles. The mounting holes include a first hole segment and a second hole segment arranged and connected along a first direction. Along the radial direction of the fixing hole, the size of the first hole segment is larger than the size of the second hole segment. The buckles are fitted in the second hole segment, and at least a portion of the buckles is located on the side of the body facing the wind turbine.

[0023] In some embodiments, the lower end of the motor sealing plate is provided with a pin, the surface of the body facing away from the wind turbine is provided with a protrusion, the body has a socket, the protrusion is opposite to the socket in the arrangement direction of the body and the wind turbine, the pin is inserted into the socket, and at least a portion of the pin is located on the side of the protrusion facing the wind turbine.

[0024] In some embodiments, the motor sealing plate is provided with a plurality of buckles, which are spaced apart in the circumferential direction of the motor sealing plate. The main body is provided with a plurality of locking holes, which correspond one-to-one with the plurality of buckles.

[0025] In some embodiments, the motor sealing plate and the motor cover plate are connected by the first fastener. The motor sealing plate is provided with a plurality of mounting grooves, and the body is provided with a plurality of mounting protrusions corresponding one-to-one with the plurality of mounting grooves. The mounting protrusions are located in the mounting grooves.

[0026] In some embodiments, the motor sealing plate is a plastic or foam component.

[0027] According to an embodiment of the present invention, the duct assembly includes: a volute housing having a fan cavity; the aforementioned fan assembly, wherein a motor cover is disposed on the front end of the fan cavity, and the motor cover further includes a fourth flange, the fourth flange including a first segment, a second segment and a third segment; on a cross-section perpendicular to the width direction of the body, the first segment is connected to the upper end of the body and extends in a direction away from the impeller, the second segment is connected to the end of the first segment away from the impeller and extends upward, and the third segment is connected to the upper end of the second segment and extends in a direction away from the impeller.

[0028] According to the embodiment of the present utility model, the air duct assembly includes the aforementioned fan assembly, a fan cavity is formed by the volute, and a motor cover is placed on the front end of the fan cavity. The motor cover also includes a fourth flange, which includes a first section, a second section, and a third section. In a cross-section perpendicular to the width direction of the body, the first section is connected to the upper end of the body and extends in a direction away from the impeller, the second section is connected to the end of the first section away from the impeller and extends upward, and the third section is connected to the upper end of the second section and extends in a direction away from the impeller. In a cross-section perpendicular to the width direction of the body, the fourth flange is stepped, thereby forming a labyrinth seal between the fourth flange and the fan cavity, ensuring the sealing between the motor cover and the volute, and preventing air leakage.

[0029] An air conditioner according to an embodiment of the present invention includes: a housing, the housing including two side plates spaced apart in the width direction of the housing, the two side plates defining a heat exchange air duct; the aforementioned air duct assembly, the air duct assembly disposed within the heat exchange air duct, a motor cover plate located on the front side of the two side plates, the motor cover plate further including two second flanges and two third flanges, the two second flanges respectively connected to both ends in the width direction of the body, the two third flanges respectively connected to the ends of the two second flanges away from the body, the second flanges and the third flanges both extending in the vertical direction, each of the two third flanges having a plurality of mounting holes for a second fastener to pass through and connect the motor cover plate to the side plate, at least one of the plurality of mounting holes of the third flanges being a gourd hole, the gourd hole including a third hole segment and a fourth hole segment arranged vertically, the third hole segment being connected to the upper end of the fourth hole segment, the diameter of the third hole segment being larger than the diameter of the fourth hole segment, the second fastener fitting within the fourth hole segment.

[0030] According to the embodiment of this utility model, the air conditioner is equipped with the aforementioned air duct assembly. Multiple mounting holes are provided on both third flanges of the motor cover for the passage of second fasteners to connect the motor cover to the side plate. At least one of the mounting holes on the third flange is a gourd hole, comprising a third segment and a fourth segment arranged vertically. The third segment is connected to the upper end of the fourth segment, and the diameter of the third segment is larger than that of the fourth segment. The second fastener is fitted within the fourth segment. During air conditioner maintenance, when the maintenance personnel remove the motor cover, the second fasteners in the mounting holes other than the gourd hole are completely loosened, causing the motor cover to slide downwards. However, due to the existence of the gourd hole, the second fastener within the gourd hole is fitted within the third segment of the gourd hole, and the motor cover hangs on the second fastener within the gourd hole. This prevents the motor cover from falling directly and injuring someone. Finally, the second fastener within the gourd hole is removed, achieving complete removal of the motor cover and ensuring convenient after-sales installation of the air conditioner.

[0031] In addition, the air conditioner according to this utility model may also have the following additional technical features:

[0032] In some embodiments, the side plate has a plurality of first positioning holes, and each of the two third flanges has a plurality of second positioning holes. The second positioning holes are spaced apart from the mounting holes and are arranged opposite to the first positioning holes one by one. The inner top wall of the second positioning hole has a folded edge, which is inclined toward the wind turbine side in the direction from top to bottom, and the folded edge passes through the first positioning hole.

[0033] In some embodiments, on a cross section perpendicular to the width direction of the housing, the angle between the extension direction of the folded edge and the up-down direction is D, and satisfies: 10°≤D≤50°.

[0034] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0036] Figure 1 This is a front view of an air conditioner according to an embodiment of the present utility model;

[0037] Figure 2 This is a left view of an air conditioner according to an embodiment of the present utility model;

[0038] Figure 3 This is a rear view of an air conditioner according to an embodiment of the present utility model;

[0039] Figure 4 This is a cross-sectional view of a fan assembly according to an embodiment of the present utility model;

[0040] Figure 5 This is a front view of the motor cover plate of the fan assembly according to an embodiment of the present utility model;

[0041] Figure 6 This is a perspective view of the motor cover plate of the fan assembly according to an embodiment of the present utility model from a first angle;

[0042] Figure 7 This is a perspective view of a fan assembly according to an embodiment of the present utility model;

[0043] Figure 8 This is a first partial sectional view of a fan assembly according to an embodiment of the present utility model;

[0044] Figure 9 This is a perspective view of a fan assembly according to an embodiment of the present utility model, wherein the fan wheel is not shown;

[0045] Figure 10 This is a first partial perspective view of the motor cover plate of the fan assembly according to an embodiment of the present utility model;

[0046] Figure 11 This is a second partial sectional view of a fan assembly according to an embodiment of the present utility model;

[0047] Figure 12This is a second partial perspective view of the motor cover plate of the fan assembly according to an embodiment of the present utility model;

[0048] Figure 13 This is a left view of the motor cover plate of the fan assembly according to an embodiment of the present utility model;

[0049] Figure 14 This is a top view of the motor cover plate of the fan assembly according to an embodiment of the present utility model;

[0050] Figure 15 This is a first partial cross-sectional view of the air duct assembly according to an embodiment of the present utility model;

[0051] Figure 16 This is a cross-sectional view of the air duct assembly according to an embodiment of the present utility model;

[0052] Figure 17 This is a second partial cross-sectional view of the air duct assembly according to an embodiment of the present utility model;

[0053] Figure 18 This is a first partial perspective view of an air conditioner according to an embodiment of the present utility model, wherein the panel assembly is not shown;

[0054] Figure 19 This is a partial front view of an air conditioner according to an embodiment of the present utility model, wherein the panel assembly is not shown;

[0055] Figure 20 This is a second partial perspective view of an air conditioner according to an embodiment of the present utility model, wherein the panel assembly is not shown;

[0056] Figure 21 This is a partial left view of the motor cover plate of the fan assembly according to an embodiment of the present utility model;

[0057] Figure 22 This is a front view of the motor cover plate and motor sealing plate of the fan assembly according to the first embodiment of the present utility model.

[0058] Figure 23 This is a rear view of the motor cover plate and motor sealing plate of the fan assembly according to the first embodiment of the present utility model.

[0059] Figure 24 This is a partial rear view of the motor cover plate and the motor sealing plate of the fan assembly according to the first embodiment of the present utility model.

[0060] Figure 25 This is a partial side view of the motor cover plate of the fan assembly according to the first embodiment of the present utility model;

[0061] Figure 26This is a front view of the motor cover plate and motor sealing plate of the fan assembly according to the second embodiment of the present utility model.

[0062] Figure 27 This is a rear view of the motor cover plate and motor sealing plate of the fan assembly according to the second embodiment of the present utility model.

[0063] Figure 28 This is a partial rear view of the motor cover plate and the motor sealing plate of the fan assembly according to the second embodiment of the present utility model.

[0064] Figure 29 This is a partial perspective view of the motor cover plate of the fan assembly according to the second embodiment of the present utility model;

[0065] Figure 30 This is a front view of the motor cover plate and motor sealing plate of the fan assembly according to the third embodiment of the present utility model;

[0066] Figure 31 This is a rear view of the motor cover plate and motor sealing plate of the fan assembly according to the third embodiment of the present utility model.

[0067] Figure 32 This is a partial rear view of the motor cover plate and the motor sealing plate of the fan assembly according to the third embodiment of the present utility model.

[0068] Figure 33 This is a partial perspective view of the motor cover plate of the fan assembly according to the third embodiment of the present utility model;

[0069] Figure 34 This is a front view of the motor cover plate and motor sealing plate of the fan assembly according to the fourth embodiment of the present utility model;

[0070] Figure 35 This is an exploded view of the motor cover plate and motor sealing plate of the fan assembly according to the fourth embodiment of the present utility model.

[0071] Figure 36 This is a front view of a portion of the motor cover plate of the fan assembly according to the fourth embodiment of the present utility model;

[0072] Figure 37 This is a perspective view of the motor sealing plate of the fan assembly according to the fourth embodiment of the present utility model.

[0073] Figure label:

[0074] 1000. Air conditioner;

[0075] 100. Air duct components;

[0076] 10. Fan components;

[0077] 1. Motor cover plate; 11. Body; 111. Fourth reinforcing structure; 112. First boss; 1121. First reinforcing rib; 1122. Second reinforcing rib; 113. Fixing hole; 1131. Cable routing groove; 114. Recessed platform; 1141. Third reinforcing rib; 1142. Fixing plate; 1143. Folded edge; 115. Second boss; 116. Notch; 12. First folded edge; 121. Water guide rib; 122. Third reinforcing structure; 13. Second folded edge; 131. The first... 14. Third flange; 141. Second reinforcing structure; 142. Mounting hole; 143. Hoop hole; 1431. Third hole section; 1432. Fourth hole section; 144. Second positioning hole; 1441. Folded edge; 15. Assembly hole; 151. First hole section; 152. Second hole section; 16. Protrusion; 161. Insertion; 17. Locking hole; 18. Assembly protrusion; 19. Fourth flange; 191. First section; 192. Second section; 193. Third section;

[0078] 2. Motor; 21. Output shaft; 22. Foot pads;

[0079] 3. Wind turbine;

[0080] 4. Motor sealing plate; 41. Rotary buckle; 411. First guide slope; 412. First guide rib; 42. Pin; 421. Second guide slope; 422. Second guide rib; 43. Buckle; 431. Third guide slope; 44. Assembly groove; 45. First fastener; 46. Second wiring groove;

[0081] 20. Volute; 201. Fan cavity; 202. Upper volute; 203. Lower volute; 204. Guide channel;

[0082] 200. Shell;

[0083] 51. Side panel; 511. First positioning hole; 512. Second fastener; 52. Panel assembly; 521. Top panel; 522. Lower panel; 53. Top cover; 54. Chassis component; 55. Outer casing bottom plate component; 56. Air inlet; 561. Air inlet grille; 57. Air outlet; 571. Louver. Detailed Implementation

[0084] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0085] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0087] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0088] The fan assembly 10 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0089] like Figure 4 As shown, the fan assembly 10 according to an embodiment of the present invention includes a motor cover plate 1, a motor 2 and a fan wheel 3.

[0090] Specifically, see the attached document. Figure 4 As shown, the motor cover 1 includes a body 11 and a first flange 12. The first flange 12 is connected to the lower end of the body 11 and extends along the width direction of the body 11 (see attached figure). Figure 5Extending in the second direction shown, the motor 2 is mounted on the body 11, which can fix the motor 2, ensuring the stability and reliability of the motor 2 installation. Furthermore, the impeller 3 is fixed to the output shaft 21 of the motor 2 and spaced apart from the motor cover plate 1. The impeller 3 can drive airflow from the air inlet 56 of the air conditioner 1000 into the heat exchange duct and out through the air outlet 57. By limiting the distance between the impeller 3 and the motor cover plate 1, collisions between the impeller 3 and the motor cover plate 1 during rotation can be avoided, ensuring the reliability and stability of both the impeller 3 and the motor cover plate 1, and extending the service life of the motor cover plate 1.

[0091] Further, see attached document. Figure 4 and attached Figure 15 As shown, in the direction from top to bottom (such as...) Figure 4 As shown, the first flange 12 is inclined toward the impeller 3. On the one hand, the inclined first flange 12 can guide the condensate in the fan assembly 10, so that the condensate flows along the inclined direction of the first flange 12 into the guide groove 204 of the volute 203, and then into the water collection tray of the air conditioner 1000. This reduces the probability of the condensate in the fan assembly 10 flowing to areas other than the water collection tray, avoids water dripping from the housing 200 of the air conditioner 1000 or short circuits in the components inside the housing 200, reduces the maintenance frequency of the air conditioner 1000, and improves the user experience. On the other hand, the inclined first flange 12 can facilitate the self-stacking of the motor cover 1, which is beneficial for material handling and automation.

[0092] According to an embodiment of the present invention, the fan assembly 10 includes a body 11 and a first flange 12 via a motor cover plate 1. The first flange 12 is connected to the lower end of the body 11. In the direction from top to bottom, the first flange 12 is inclined toward the impeller 3. On the one hand, the inclined first flange 12 can guide the condensate in the fan assembly 10, so that the condensate flows along the inclined direction of the first flange 12 into the guide groove 204 of the volute 203, and then flows to the water receiving tray of the air conditioner 1000. This reduces the probability of the condensate in the fan assembly 10 flowing to areas other than the water receiving tray, avoids water dripping from the housing 200 of the air conditioner 1000 or short circuits in the components inside the housing 200, reduces the maintenance frequency of the air conditioner 1000, and improves the user experience. On the other hand, the inclined first flange 12 can facilitate the self-stacking of the motor cover plate 1, which is beneficial for material handling and automation.

[0093] In some embodiments of this utility model, reference is made to the appendix. Figure 14 As shown, the upper surface of the first flange 12 is provided with two water-guiding ribs 121, which are located in the width direction of the first flange 12 (see attached figure). Figure 14Two water guide ribs 121 extend toward each other in the direction from the body 11 to the impeller 3, spaced apart at both ends (second direction shown). Since the first flange 12 is inclined toward the impeller 3 in the direction from top to bottom, the condensate on the first flange 12 will flow along the extension direction of the water guide ribs 121 toward the gap between the two water guide ribs 121, and then flow from the gap between the two water guide ribs 121 to the guide groove 204 of the lower volute 203, and then to the water collection tray of the air conditioner 1000. This can further reduce the probability of condensate in the fan assembly 10 flowing to areas other than the water collection tray, avoid water dripping from the housing 200 of the air conditioner 1000 or short circuits in the components inside the housing 200, reduce the maintenance frequency of the air conditioner 1000, and improve the user experience.

[0094] In some embodiments of this utility model, reference is made to the appendix. Figure 6 As shown, the motor cover 1 also includes two second flanges 13, which are respectively connected to both ends of the body 11 in the width direction. The second flanges 13 are located along the vertical direction (e.g., Figure 4 As shown, in the direction from the body 11 to the impeller 3, the two second flanges 13 are inclined in the direction away from each other. By setting the first flange 12 and the two second flanges 13 at an incline, the outer contour of the motor cover plate 1 gradually increases in the direction from the body 11 to the impeller 3, which facilitates the self-stacking of the motor cover plate 1 and is beneficial for material handling and automation.

[0095] In a further embodiment of this utility model, reference is made to the appendix. Figure 13 As shown, the angle between the first flange 12 and the horizontal direction is A, and satisfies: 2°≤A≤10°. On the one hand, this avoids the first flange 12 from having an excessively steep tilt angle, relatively reducing the flow rate of condensate on the first flange 12, preventing the condensate from splashing everywhere due to excessive flow, preventing condensate in the fan assembly 10 from flowing to areas outside the drip tray, and preventing water dripping from the housing 200 of the air conditioner 1000 or short circuits in the components inside the housing 200, thus reducing the maintenance frequency of the air conditioner 1000 and improving the user experience. On the other hand, this avoids the angle between the first flange 12 and the body 11 from being too large, thus avoiding affecting the structural reliability of the motor cover 1. For example, the angle A between the first flange 12 and the horizontal direction can be 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, or 10°.

[0096] Further, see attached document. Figure 14As shown, the angle between the arrangement direction of the main body 11 and the impeller 3 and the second flange 13 is B, and satisfies: 2°≤B≤10°. This avoids the angle between the second flange 13 and the main body 11 being too large, thus preventing any impact on the structural reliability of the motor cover plate 1. For example, the angle B between the arrangement direction of the main body 11 and the impeller 3 and the second flange 13 can be 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, or 10°.

[0097] In a further embodiment of this utility model, reference is made to the appendix. Figure 5 and attached Figure 6 As shown, a first reinforcing structure 131 is provided at the connection position between the main body 11 and the second flange 13. During the operation of the air conditioner 1000, the motor 2 will generate vibration, thermal stress or mechanical load, and the motor cover plate 1 needs to withstand these external forces. By providing the first reinforcing structure 131, the connection strength between the main body 11 and the second flange 13 can be improved, significantly enhancing the bending and torsional resistance of the motor cover plate 1, improving the structural strength of the motor cover plate 1, and preventing cracking or deformation caused by stress concentration.

[0098] Further, see attached document. Figure 6 As shown, the first reinforcing structure 131 can be along the extending direction of the second flange 13 (see attached diagram). Figure 5 Multiple reinforcement structures 131 (as shown in the vertical direction) are spaced apart, which can improve the connection strength between the main body 11 and the second flange 13 from multiple spaced points, and further improve the structural strength of the motor cover 1. For example, the first reinforcement structure 131 can be two, three, four, five, six, seven, eight, nine or ten spaced apart along the extension direction of the second flange 13, without much limitation here.

[0099] Optionally, such as Figure 6 As shown, the first reinforcing structure 131 can be a triangular rib. Since triangles are stable, when the motor cover 1 is subjected to external forces (such as vibration, impact, or thermal stress), the triangular rib can effectively disperse the stress and reduce the risk of local deformation or cracking. The first reinforcing structure 131 can also be a two-section reinforcing rib, with one section located on the body 11 and extending along the width of the body 11, and the other section located on the second flange 13 and extending along the width of the second flange 13. The two-section reinforcing rib structure is simple, covers a larger area, and can extend vertically (see attached diagram). Figure 5 Supporting the motor cover plate 1 in the vertical direction (as shown) can also improve the connection strength between the main body 11 and the second flange 13, prevent the motor cover plate 1 from deforming in the vertical direction, and ensure the structural strength of the motor cover plate 1.

[0100] In a specific example, see Appendix Figure 6As shown, the first reinforcing structure 131 consists of nine spaced-apart structures along the extension direction of the second flange 13. The three middle first reinforcing structures 131 are two-segment reinforcing ribs, and the remaining first reinforcing structures 131 are triangular ribs.

[0101] Further, see attached document. Figure 6 and attached Figure 20 As shown, a third flange 14 is provided at the end of the second flange 13 away from the body 11. The third flange 14 extends in the vertical direction and is used to connect the motor cover plate 1 to the side plate 51 of the air conditioner 1000. A second reinforcing structure 141 is provided at the connection position between the third flange 14 and the second flange 13. During the operation of the air conditioner 1000, the motor 2 will generate vibration, thermal stress or mechanical load, and the motor cover plate 1 needs to withstand these external forces. By providing the second reinforcing structure 141, the connection strength between the third flange 14 and the second flange 13 can be improved, significantly improving the bending and torsional resistance of the motor cover plate 1, improving the structural strength of the motor cover plate 1, and preventing cracking or deformation caused by stress concentration.

[0102] Further, see attached document. Figure 6 As shown, the second reinforcing structure 141 can be multiple structures spaced apart along the extending direction of the second flange 13, which can improve the connection strength between the third flange 14 and the second flange 13 from multiple spaced points, further improving the structural strength of the motor cover 1. For example, the second reinforcing structure 141 can be two, three, four, five, six, seven, eight, nine, or ten structures spaced apart along the extending direction of the second flange 13; no further limitation is made here. In a specific example, refer to the attached diagram. Figure 6 As shown, the second reinforcing structure 141 consists of three spaced-apart structures along the extension direction of the second flange 13.

[0103] Optionally, such as Figure 6 As shown, the second reinforcing structure 141 can be a triangular rib. Since triangles have stability, when the motor cover 1 is subjected to external forces (such as vibration, impact or thermal stress), the triangular rib can effectively disperse the stress and reduce the risk of local deformation or cracking.

[0104] In some embodiments of this utility model, reference is made to the appendix. Figure 6 As shown, a third reinforcing structure 122 is provided at the connection position between the main body 11 and the first flange 12. During the operation of the air conditioner 1000, the motor 2 will generate vibration, thermal stress or mechanical load, and the motor cover plate 1 needs to withstand these external forces. By providing the third reinforcing structure 122, the connection strength between the main body 11 and the first flange 12 can be improved, significantly enhancing the bending and torsional resistance of the motor cover plate 1, improving the structural strength of the motor cover plate 1, and preventing cracking or deformation caused by stress concentration.

[0105] Further, see attached document. Figure 6 As shown, the third reinforcing structure 122 can be along the extending direction of the first flange 12 (see attached diagram). Figure 5 The multiple third reinforcing structures 122 (as shown in the second direction) spaced apart can improve the connection strength between the body 11 and the first flange 12 from multiple intervals, further improving the structural strength of the motor cover 1. For example, the third reinforcing structures 122 can be two, three, four, five, six, seven, eight, nine, or ten spaced apart along the extension direction of the first flange 12; no further limitation is made here. In a specific example, refer to the attached diagram. Figure 6 As shown, the third reinforcing structure 122 consists of six structures spaced apart along the extension direction of the first flange 12.

[0106] Optionally, such as Figure 6 As shown, the third reinforcing structure 122 can be a triangular rib. Since triangles have stability, when the motor cover 1 is subjected to external forces (such as vibration, impact or thermal stress), the triangular rib can effectively disperse the stress and reduce the risk of local deformation or cracking.

[0107] Further, see attached document. Figure 6 As shown, a fourth reinforcing structure 111 is provided at the upper and / or lower ends of the main body 11. The fourth reinforcing structure 111 extends along the width direction of the main body 11. During the operation of the air conditioner 1000, the motor 2 will generate vibration, thermal stress, or mechanical load, and the motor cover plate 1 needs to withstand these external forces. By providing the fourth reinforcing structure 111, the structural strength of the main body 11 can be improved, significantly enhancing the bending and torsional resistance of the motor cover plate 1, thus preventing cracking or deformation caused by stress concentration. Furthermore, the fourth reinforcing structure 111 extends along the width direction of the main body 11, has a simple structure, covers a larger area, and can provide vertical support, further improving the connection strength of the main body 11, preventing the motor cover plate 1 from deforming in the vertical direction, and ensuring the structural strength of the motor cover plate 1.

[0108] Optionally, the fourth reinforcing structure 111 may be provided only at the upper end of the main body 11, or only at the lower end of the main body 11, or both the upper and lower ends of the main body 11 may be provided with the fourth reinforcing structure 111.

[0109] In some embodiments of this utility model, reference is made to the appendix. Figure 5As shown, the main body 11 has a notch 116, which is roughly triangular in shape. Production personnel can reach into the notch 116 to remove the motor cover 1, facilitating after-sales maintenance of the fan assembly 10. It should be noted that on a projection plane perpendicular to the arrangement direction of the main body 11 and the impeller 3, the main body 11 is roughly rectangular in shape. The notch 116 is located at the corner of the rectangle, which avoids the notch 116 affecting the installation and fixation of the motor 2 and reduces the impact of the notch 116 on the structural strength of the motor cover 1.

[0110] Further, see attached document. Figure 5 As shown, the notch at point 116 is edge-folded to prevent it from scratching the hands of maintenance personnel and avoid accidental injury.

[0111] In some embodiments of this utility model, reference is made to the appendix. Figure 4 Appendix Figure 7 and attached Figure 9 As shown, the main body 11 has a first boss 112 protruding towards the side opposite to the impeller 3. The first boss 112 is provided with a fixing hole 113. The motor 2 passes through the fixing hole 113. Along the radial direction of the impeller 3, the outer edge of the bottom wall of the first boss 112 is located outside the outer edge of the impeller 3, so that the impeller 3 and the motor cover plate 1 are separated, avoiding the impeller 3 from colliding with the motor cover plate 1 during rotation, ensuring the reliability and stability of the impeller 3 and the motor cover plate 1, and extending the service life of the motor cover plate 1.

[0112] In a further embodiment of this utility model, reference is made to the appendix. Figure 8 As shown, along the arrangement direction of the body 11 and the impeller 3, the minimum gap between the impeller 3 and the bottom wall of the first protrusion 112 is C, and satisfies: 10mm≤C≤25mm. If C<10mm, the distance between the impeller 3 and the bottom wall of the first protrusion 112 will be too close, and during the rotation of the impeller 3, it is easy to collide with the motor cover plate 1, affecting the service life of the impeller 3 and the motor cover plate 1. If C>25mm, the distance between the impeller 3 and the bottom wall of the first protrusion 112 will be too far, affecting the air intake of the air conditioner 1000. By limiting 10mm≤C≤25mm, the air intake of the air conditioner 1000 can be increased as much as possible while avoiding collision between the impeller 3 and the motor cover plate 1, thus ensuring the performance of the fan assembly 10. For example, the minimum gap C between the impeller 3 and the bottom wall of the first protrusion 112 can be 10mm, 12mm, 15mm, 18mm, 20mm, 23mm or 25mm.

[0113] In a further embodiment of this utility model, reference is made to the appendix. Figure 5As shown, the first boss 112 is provided with a first reinforcing rib 1121, which extends along the circumferential direction of the fixing hole 113. During the operation of the air conditioner 1000, the motor 2 will generate vibration, thermal stress or mechanical load, and the motor cover plate 1 needs to withstand these external forces. By providing the first reinforcing rib 1121 on the first boss 112, the structural strength of the first boss 112 can be improved, the bending and torsional resistance of the motor cover plate 1 can be significantly improved, the structural strength of the motor cover plate 1 can be improved, and cracking or deformation caused by stress concentration can be prevented.

[0114] Further, see attached document. Figure 5 As shown, the first boss 112 is provided with a plurality of second reinforcing ribs 1122. These second reinforcing ribs 1122 extend radially along the fixing hole 113 and are spaced apart circumferentially along the fixing hole 113. During the operation of the air conditioner 1000, the motor 2 will generate vibration, thermal stress, or mechanical load, and the motor cover 1 needs to withstand these external forces. By providing a plurality of second reinforcing ribs 1122 on the first boss 112, the structural strength of the first boss 112 can be improved, significantly enhancing the bending and torsional resistance of the motor cover 1, thus preventing cracking or deformation caused by stress concentration. For example, the second reinforcing ribs 1122 can be two, three, four, five, ten, or fifteen spaced apart along the circumferential direction of the fixing hole 113.

[0115] Preferably, refer to the appendix Figure 5 As shown, the first boss 112 is provided with a first reinforcing rib 1121 and a plurality of second reinforcing ribs 1122 on the annular surface. The end of the second reinforcing rib 1122 near the center of the fixing hole 113 is connected to the first reinforcing rib 1121, which can realize the transmission of force between the first reinforcing rib 1121 and the second reinforcing rib 1122, better disperse the external force on the motor cover plate 1, further improve the structural strength of the motor cover plate 1, and prevent cracking or deformation caused by stress concentration.

[0116] In a further embodiment of this utility model, reference is made to the appendix. Figure 9 and attached Figure 10 As shown, the first protrusion 112 has a recessed platform 114 facing the side close to the impeller 3. The fixing hole 113 is provided on the recessed platform 114. It can be understood that since the side of the motor cover plate 1 away from the impeller 3 needs to be provided with a motor sealing plate 4 to block the fixing hole 113, the setting of the recessed platform 114 can facilitate the fixing of the motor 2 on the motor cover plate 1, and prevent the end of the motor 2 facing the motor sealing plate 4 from extending beyond the motor cover plate 1. This can ensure the normal sealing of the fixing hole 113 by the motor sealing plate 4, prevent air leakage of the fan assembly 10, and thus prevent condensation and ensure the performance of the air conditioner 1000.

[0117] It should be noted that when the first protrusion 112 is provided with a recessed platform 114, the minimum gap C between the impeller 3 and the bottom wall of the first protrusion 112 is the minimum distance from the bottom wall of the first protrusion 112 other than the recessed platform 114 to the impeller 3.

[0118] In a further embodiment of this utility model, reference is made to the appendix. Figure 10 As shown, the recessed platform 114 is provided with a third reinforcing rib 1141, which extends along the circumferential direction of the fixing hole 113. During the operation of the air conditioner 1000, the motor 2 will generate vibration, thermal stress or mechanical load, and the motor cover plate 1 needs to withstand these external forces. By providing a third reinforcing rib 1141 on the recessed platform 114, the structural strength of the recessed platform 114 can be improved, the bending and torsional resistance of the motor cover plate 1 can be significantly improved, the structural strength of the motor cover plate 1 can be improved, and cracking or deformation caused by stress concentration can be prevented.

[0119] Further, see attached document. Figure 10 and attached Figure 11 As shown, the mounting platform 114 is provided with a plurality of second protrusions 115 protruding toward the side opposite to the impeller 3. The plurality of second protrusions 115 are spaced apart in the circumferential direction of the fixing hole 113. The arrangement of the second protrusions 115 can cooperate with the foot pads 22 of the motor 2 to pre-position the motor 2, reduce the assembly difficulty of the motor 2 and the motor cover plate 1, and facilitate automation.

[0120] Furthermore, see the attached document. Figure 11 As shown, along the arrangement direction of the body 11 and the impeller 3, the depth of the second boss 115 is E, and satisfies: 1.5mm≤E≤3.5mm. On the one hand, this can avoid the second boss 115 being too shallow, which would cause the pre-positioning to be ineffective, and ensure the positioning effect of the second boss 115 on the motor 2 foot pad 22, reducing the assembly difficulty of the motor 2 and the motor cover plate 1, and facilitating automation. On the other hand, this can avoid the second boss 115 being too deep, which would cause the bottom surface of the motor 2 to directly abut against the motor cover plate 1, thus avoiding affecting the normal installation of the motor 2.

[0121] In a specific example, see Appendix Figure 10 As shown, there are three third reinforcing ribs 1141 spaced apart along the circumferential direction of the fixing hole 113. Along the circumferential direction of the fixing hole 113, there is at least one second boss 115 between two adjacent third reinforcing ribs 1141.

[0122] In a further embodiment of this utility model, reference is made to the appendix. Figure 12As shown, a fixing plate 1142 is provided on the side of the platform 114 away from the impeller 3. The fixing plate 1142 surrounds the fixing hole 113. The inner wall of the fixing hole 113 is provided with a radially outward recessed wiring groove 1131. The wiring groove 1131 allows the motor 2 wires to pass through. The end of the fixing plate 1142 away from the impeller 3 is provided with a folded edge 1143. Along the extension direction of the fixing plate 1142, the folded edge 1143 is arranged opposite to the wiring groove 1131. The folded edge 1143 bends and extends in the direction away from the center line of the fixing hole 113. The design of the folded edge 1143 can prevent the motor 2 wires from being scratched at the wiring groove 1131, ensuring the service life of the motor 2 wires and improving the safety of the fan assembly 10.

[0123] Preferably, the plane where the folded edge 1143 is located is parallel to the plane where the recessed platform 114 is located, which can further improve the anti-scratching effect of the folded edge 1143 and reduce the manufacturing difficulty of the motor cover plate 1.

[0124] In some embodiments of this utility model, reference is made to the appendix. Figure 4 As shown, the main body 11 has a fixing hole 113, and the motor 2 passes through the fixing hole 113. The fan assembly 10 also includes a motor sealing plate 4, which is located on the side of the main body 11 away from the impeller 3. It is used to seal the fixing hole 113, thereby preventing air leakage from the fan assembly 10, preventing condensation, and ensuring the performance of the air conditioner 1000.

[0125] Further, see attached document. Figure 30 and attached Figure 31 As shown, the motor sealing plate 4 and the motor cover plate 1 are connected and / or snap-fitted together by the first fastener 45, which can ensure the sealing performance of the fan assembly 10 and improve the heat exchange efficiency of the air conditioner 1000. Connecting the motor sealing plate 4 and the motor cover plate 1 by the first fastener 45 can ensure the reliability of the connection between the motor sealing plate 4 and the motor cover plate 1 and reduce the assembly cost of the motor sealing plate 4 and the motor cover plate 1; the snap-fit ​​connection between the motor sealing plate 4 and the motor cover plate 1 can facilitate the disassembly and assembly of the motor sealing plate 4 and the motor cover plate 1 and shorten the disassembly and assembly time of the motor sealing plate 4 and the motor cover plate 1.

[0126] Optionally, the motor sealing plate 4 and the motor cover plate 1 may be connected only by the first fastener 45, or the motor sealing plate 4 and the motor cover plate 1 may be connected only by snap-fit, or the motor sealing plate 4 and the motor cover plate 1 may be connected by both the first fastener 45 and snap-fit.

[0127] In a further embodiment of this utility model, reference is made to the appendix. Figure 22 Appendix Figure 26 and attached Figure 30As shown, the motor sealing plate 4 and the motor cover plate 1 are connected and snap-fitted together by the first fastener 45. The number of the first fasteners 45 is less than 3. It can be understood that since the snap-fit ​​connection is simpler to assemble and disassemble, after snapping the motor sealing plate 4 and the motor cover plate 1 together, the motor sealing plate 4 and the motor cover plate 1 can be positioned and initially connected. Then, the motor sealing plate 4 and the motor cover plate 1 are connected together by the first fastener 45, which can ensure the reliability of the connection between the motor sealing plate 4 and the motor cover plate 1. Since the motor sealing plate 4 and the motor cover plate 1 are both snap-fitted together and connected by the first fastener 45, the number of the first fasteners 45 can be reduced while ensuring the reliability of the connection between the motor sealing plate 4 and the motor cover plate 1. This reduces the number of parts in the fan assembly 10, reduces the assembly steps of the fan assembly 10, and lowers the assembly difficulty of the fan assembly 10.

[0128] In a further embodiment of this utility model, reference is made to the appendix. Figure 23 and attached Figure 24 As shown, the motor sealing plate 4 is provided with multiple screw fasteners 41, which are spaced apart in the circumferential direction of the motor sealing plate 4. The body 11 is provided with multiple mounting holes 15 corresponding to the screw fasteners 41. The mounting holes 15 include those along a first direction (e.g., Figure 23 The first hole segment 151 and the second hole segment 152, arranged and connected in a counterclockwise direction as shown, are in the radial direction of the fixing hole 113. The size of the first hole segment 151 is larger than that of the second hole segment 152. The swivel 41 fits in the second hole segment 152, and at least a portion of the swivel 41 is located on the side of the body 11 facing the wind turbine 3.

[0129] Understandably, the first hole 151 facilitates the insertion and engagement of the buckle 41 into the mounting hole 15, enabling initial positioning of the motor sealing plate 4. When assembling the motor sealing plate 4 with the motor cover plate 1, the buckle 41 is first positioned opposite the mounting hole 15, and then the motor sealing plate 4 is rotated so that the buckle 41 engages within the second hole 152, ensuring the proper assembly gap between the motor sealing plate 4 and the motor cover plate 1, thus achieving pre-positioning between them. After the buckle 41 engages with the second hole 152, only one first fastener 45 is needed to secure the motor sealing plate 4 to the motor cover plate 1.

[0130] Further, see attached document. Figure 25 As shown, the front end of the swivel buckle 41 along the first direction is provided with a first guide slope 411, which can play a rotational guiding role, making it easy to install the swivel buckle 41 into the assembly hole 15. The two side walls of the swivel buckle 41 along the radial direction of the fixing hole 113 are provided with first guide ribs 412. On the one hand, it can make it easy to install the swivel buckle 41 into the assembly hole 15. On the other hand, it can improve the structural strength of the swivel buckle 41 and ensure the reliability of the fit between the motor sealing plate 4 and the motor cover plate 1.

[0131] In a further embodiment of this utility model, reference is made to the appendix. Figure 27 and attached Figure 28 As shown, the lower end of the motor sealing plate 4 is provided with a pin 42, and the surface of the body 11 facing away from the impeller 3 is provided with a protrusion 16. The body 11 has a socket 161. The protrusion 16 is opposite to the socket 161 in the arrangement direction of the body 11 and the impeller 3. The pin 42 is inserted into the socket 161, and at least a part of the pin 42 is located on the side of the protrusion 16 facing the impeller 3.

[0132] It is understandable that by inserting the pin 42 into the socket 161, the pre-positioning between the motor sealing plate 4 and the motor cover plate 1 can be achieved. After the pin 42 and the socket 161 are engaged, only one first fastener 45 is needed to fix the motor sealing plate 4 and the motor cover plate 1.

[0133] Preferably, the pin 42 is along the width direction of the motor cover plate 1 (see attached figure). Figure 27 The multiple spacings (as shown in the second direction) allow the motor sealing plate 4 to engage with the motor cover plate 1 from multiple points, ensuring the pre-positioning effect of the pin 42 and the socket 161. In a specific example, such as... Figure 27 As shown, there are two pins 42 spaced apart along the width of the motor cover plate 1, which can engage the motor sealing plate 4 with the motor cover plate 1 from two points, ensuring the pre-positioning effect of the pins 42 and the socket 161.

[0134] Further, see attached document. Figure 29 As shown, the lower end of the pin 42 is provided with a second guide slope 421, which can play a guiding role and facilitate the insertion of the pin 42 into the socket 161. The pin 42 is provided with a second guide rib 422 on both sides of the side wall along the arrangement direction of the body 11 and the impeller 3. On the one hand, it can facilitate the insertion of the pin 42 into the socket 161. On the other hand, it can improve the structural strength of the pin 42 and ensure the reliability of the fit between the motor sealing plate 4 and the motor cover plate 1.

[0135] In a further embodiment of this utility model, reference is made to the appendix. Figure 31 and attached Figure 32 As shown, the motor sealing plate 4 is provided with multiple buckles 43, which are spaced apart in the circumferential direction of the motor sealing plate 4. The body 11 is provided with multiple locking holes 17, which correspond to and cooperate with the multiple buckles 43 one by one.

[0136] Understandably, by having multiple locking holes 17 and multiple locking buckles 43 engage one-to-one, pre-positioning between the motor sealing plate 4 and the motor cover plate 1 can be achieved. After the locking holes 17 and locking buckles 43 are engaged, the motor sealing plate 4 and the motor cover plate 1 can be fixed by two first fasteners 45. For example, there can be two, three, four, or five locking buckles 43 spaced apart in the circumferential direction of the motor sealing plate 4, and two, three, four, or five locking holes 17 corresponding one-to-one with multiple locking buckles 43, enabling positioning from multiple points and improving the accuracy of the engagement between the locking buckles 43 and the locking holes 17.

[0137] Further, see attached document. Figure 33 As shown, the free end of the buckle 43 is provided with a third guide slope 431, which can play a guiding role and facilitate the insertion of the buckle 43 into the buckle hole 17.

[0138] In a further embodiment of this utility model, reference is made to the appendix. Figure 34 and attached Figure 35 As shown, in conjunction with the reference appendix Figure 36 and attached Figure 37 The motor sealing plate 4 and the motor cover plate 1 are connected by the first fastener 45. The motor sealing plate 4 is provided with multiple mounting grooves 44, and the body 11 is provided with multiple mounting protrusions 18 corresponding to the multiple mounting grooves 44. The mounting protrusions 18 are located in the mounting grooves 44.

[0139] It is understandable that by having multiple mounting grooves 44 and multiple mounting protrusions 18 cooperate one-to-one, the pre-positioning between the motor sealing plate 4 and the motor cover plate 1 can be achieved. After the multiple mounting grooves 44 and multiple mounting protrusions 18 are cooperated, the motor sealing plate 4 and the motor cover plate 1 can be fixed by multiple first fasteners 45.

[0140] For example, the mounting grooves 44 can be two, three, four, or five spaced apart in the circumferential direction of the motor sealing plate 4, and the mounting protrusions 18 can be two, three, four, or five corresponding to the multiple mounting grooves 44, enabling positioning from multiple points and improving the accuracy of the fit between the mounting protrusions 18 and the mounting grooves 44. It should be noted that the first fasteners 45 are fixed on the mounting protrusions 18, and the number of the first fasteners 45 corresponds one-to-one with the number of mounting protrusions 18.

[0141] In a further embodiment of this utility model, the motor sealing plate 4 is a plastic part or a foam part. When the motor sealing plate 4 is a plastic part, it is convenient to design a snap-fit ​​structure on the motor sealing plate 4, and the structural strength of the motor sealing plate 4 is also relatively strong. When the motor sealing plate 4 is a foam part, the foam material can play a role in heat insulation and heat preservation, and there is no need to attach heat insulation sponge to the motor sealing plate 4, which can reduce the number of parts of the fan assembly 10.

[0142] It should be noted that the motor sealing plate 4 is designed with a second wiring groove 46 that is connected to the wiring groove 1131. The motor 2 wire is located in both the wiring groove 1131 and the second wiring groove 46. When the motor sealing plate 4 is a foam part, the second wiring groove 46 extends along the radial direction of the motor sealing plate 4, which can guide the motor 2 wire and better protect the motor 2 wire.

[0143] This utility model also proposes a duct assembly 100 having the fan assembly 10 of the above embodiments.

[0144] like Figure 16 As shown, the air duct assembly 100 according to an embodiment of the present invention includes a volute 20 and the aforementioned fan assembly 10.

[0145] Specifically, see the attached document. Figure 16 and attached Figure 17 As shown, the volute 20 has a fan cavity 201, and the motor cover 1 is installed on the front end of the fan cavity 201. The motor cover 1 also includes a fourth flange 19, which includes a first section 191, a second section 192, and a third section 193. In the cross-section perpendicular to the width direction of the body 11, the first section 191 is connected to the upper end of the body 11 and extends in the direction away from the impeller 3. The second section 192 is connected to the end of the first section 191 away from the impeller 3 and extends upward. The third section 193 is connected to the upper end of the second section 192 and extends in the direction away from the impeller 3. In the cross-section perpendicular to the width direction of the body 11, the fourth flange 19 is stepped, thereby forming a labyrinth seal between the fourth flange 19 and the fan cavity 201, ensuring the sealing between the motor cover 1 and the volute 20, and preventing air leakage.

[0146] In a specific example, see Appendix Figure 16 As shown, the volute 20 includes an upper volute 202 and a lower volute 203 arranged and connected in the vertical direction. The upper volute 202 is located above the lower volute 203. Both the upper volute 202 and the lower volute 203 are connected to the outer casing bottom plate component 55 of the air conditioner 1000 housing 200. The upper volute 202 and the lower volute 203 together define the air outlet cavity 201. The shape of the fourth flange 19 matches the shape of the upper volute 202.

[0147] According to the embodiment of the present utility model, the air duct assembly 100 is provided with the above-mentioned fan assembly 10, and the volute 20 has a fan cavity 201. The motor cover 1 is covered on the front end of the fan cavity 201. The motor cover 1 also includes a fourth flange 19, which includes a first segment 191, a second segment 192 and a third segment 193. In the cross-section perpendicular to the width direction of the body 11, the first segment 191 is connected to the upper end of the body 11 and extends in the direction away from the impeller 3. The second segment 192 is connected to the end of the first segment 191 away from the impeller 3 and extends upward. The third segment 193 is connected to the upper end of the second segment 192 and extends in the direction away from the impeller 3. In the cross-section perpendicular to the width direction of the body 11, the fourth flange 19 is stepped, thereby forming a labyrinth seal between the fourth flange 19 and the fan cavity 201, ensuring the sealing between the motor cover 1 and the volute 20 and preventing air leakage.

[0148] This utility model also proposes an air conditioner 1000 having the air duct assembly 100 of the above embodiments.

[0149] like Figure 18 As shown, the air conditioner 1000 according to an embodiment of the present utility model includes a housing 200 and the aforementioned air duct assembly 100.

[0150] For details, please refer to the appendix. Figure 1 As shown, the housing 200 can protect the internal structure of the air conditioner 1000, preventing the internal structure of the air conditioner 1000 from being exposed and damaged, which helps to extend the service life of the air conditioner 1000, and also has a better appearance.

[0151] Further, see attached document. Figure 2 and attached Figure 18 As shown, in conjunction with the reference appendix Figure 19 and attached Figure 20 The housing 200 includes the housing 200 in the width direction (see attached figure). Figure 1Two side plates 51 spaced apart in the second direction (as shown) define a heat exchange air duct between them. An air duct assembly 100 is disposed within the heat exchange air duct. A motor cover 1 is located in front of the two side plates 51. The motor cover 1 also includes two second flanges 13 and two third flanges 14. The two second flanges 13 are respectively connected to both ends of the body 11 in the width direction, and the two third flanges 14 are respectively connected to the ends of the two second flanges 13 away from the body 11. Both the second flanges 13 and the third flanges 14 extend in the vertical direction. Each edge 14 has multiple mounting holes 142 for the second fastener 512 to pass through and connect the motor cover 1 to the side plate 51. At least one of the mounting holes 142 in the third flange 14 is a gourd hole 143. The gourd hole 143 includes a third hole segment 1431 and a fourth hole segment 1432 arranged vertically. The third hole segment 1431 is connected to the upper end of the fourth hole segment 1432. The diameter of the third hole segment 1431 is larger than the diameter of the fourth hole segment 1432. The second fastener 512 fits into the fourth hole segment 1432.

[0152] Understandably, during the repair of air conditioner 1000, when the repairman removes the motor cover 1, the second fastener 512 in the mounting holes 142 (excluding the hoist hole 143) will be completely loosened, causing the motor cover 1 to slide downwards. However, due to the presence of the hoist hole 143, the second fastener 512 in the hoist hole 143 engages with the third hole section 1431 of the hoist hole 143, and the motor cover 1 will be hung on the second fastener 512 in the hoist hole 143. This prevents the motor cover 1 from falling directly and hitting someone. Finally, the second fastener 512 in the hoist hole 143 is removed to completely remove the motor cover 1, ensuring convenient after-sales installation of air conditioner 1000.

[0153] Preferably, each of the two third flanges 14 has only one gourd hole 143, and the gourd hole 143 is located in the middle area of ​​the third flange 14 in the vertical direction. This can minimize the impact on the difficulty of disassembling the motor cover 1 while preventing the motor cover 1 from falling directly and hitting people.

[0154] Furthermore, in conjunction with the reference appendix Figure 1 Appendix Figure 2 and attached Figure 3As shown, the housing 200 also includes a panel assembly 52, a top cover 53, a chassis component 54, and an outer casing bottom plate component 55. The panel assembly 52 includes an upper panel 521 and a lower panel 522, which are connected to each other, thus reducing the production and maintenance costs of the air conditioner 1000. Two side plates 51 are respectively connected to both ends of the outer casing bottom plate component 55 along the width direction of the housing 200 and extend towards the panel assembly 52. ​​Parts of the side plates 51 are connected to the upper panel 521, and parts are connected to the lower panel 522. The lower ends of the lower panel 522, the outer casing bottom plate component 55, and the two side plates 51 are all connected to the chassis component 54, and the upper ends of the upper panel 521, the outer casing bottom plate component 55, and the two side plates 51 are all connected to the top cover 53, thereby forming an integral structure that protects the internal structure of the air conditioner 1000 and prevents users from contacting the interior and causing injury.

[0155] Furthermore, see the attached document. Figure 1 and attached Figure 3 As shown, the housing 200 has an air inlet 56 and an air outlet 57 that communicate with the heat exchange air duct. The air inlet 56 is located on the bottom plate component 55 of the outer casing and extends along the length of the bottom plate component 55 (see attached diagram). Figure 3 Extending in the vertical direction shown, the air outlet 57 is located on the upper panel 521. Airflow outside the air conditioner 1000 can enter the heat exchange duct through the air inlet 56, and airflow in the heat exchange duct can flow out of the air conditioner 1000 through the air outlet 57.

[0156] Further, see attached document. Figure 3 As shown, an air inlet grille 561 is provided at the air inlet 56. On the one hand, the air inlet grille 561 can prevent hands or other foreign objects from entering the air conditioner 1000, protecting the safety of the user and ensuring the normal operation of the air conditioner 1000. On the other hand, the air inlet grille 561 can prevent insects, rodents, etc. from entering the casing 200 of the air conditioner 1000 and causing damage to the air conditioner 1000, ensuring the normal operation of the air conditioner 1000 and ensuring the aesthetic appearance of the air conditioner 1000.

[0157] Optionally, the air intake grille 561 is detachably connected to the outer casing bottom plate component 55. The air intake grille 561 can ensure the aesthetic appearance of the housing 200. After the air intake grille 561 is removed, it is convenient to repair and replace the components inside the air conditioner 1000. At the same time, it is convenient to clean the air intake grille 561, avoiding dust accumulation caused by prolonged use.

[0158] Further, see attached document. Figure 1As shown, the air outlet 57 is provided with multiple louvers 571 arranged in the vertical direction. The louvers 571 can rotate, and the rotation center line of the louvers 571 is parallel to the width direction of the housing 200, so that the louvers 571 can open or close the air outlet 57 to cooperate with the opening or closing of the air conditioner 1000.

[0159] Understandably, when the air conditioner 1000 is in use, the louvers 571 can open the air outlet 57, allowing airflow to pass through the air outlet 57 into the room; when the air conditioner 1000 is turned off, the louvers 571 can close the air outlet 57, preventing dust, insects, etc. from entering the air conditioner 1000, ensuring the normal operation of the air conditioner 1000, and giving the air conditioner 1000 a better appearance.

[0160] Furthermore, the air conditioner 1000 also includes a heat exchange component, which is located in a heat exchange duct. The duct component 100 can drive the airflow outside the air conditioner 1000 to enter the heat exchange duct through the air inlet 56. The airflow in the heat exchange duct can exchange heat with the heat exchange component. The airflow after heat exchange can be blown into the room through the air outlet 57, thereby achieving the effect of regulating the indoor temperature and meeting the user's usage needs.

[0161] Furthermore, the air conditioner 1000 also includes a drip tray located below the heat exchange components. This drip tray collects condensate generated during the operation of the heat exchange components, preventing condensate from flowing into the housing 200 and causing dripping or short circuits in the components within the housing 200. Additionally, a drain pipe is connected to the drip tray to drain the condensate from the drip tray to the outside of the air conditioner 1000.

[0162] According to the embodiment of the present utility model, the air conditioner 1000 is provided with the above-mentioned air duct assembly 100. The motor cover plate 1 has multiple mounting holes 142 on each of its two third flanges 14 for the second fastener 512 to pass through and connect the motor cover plate 1 to the side plate 51. At least one of the mounting holes 142 on the third flange 14 is a gourd hole 143, which includes a third hole segment 1431 and a fourth hole segment 1432 arranged vertically. The third hole segment 1431 is connected to the upper end of the fourth hole segment 1432, and the diameter of the third hole segment 1431 is larger than the diameter of the fourth hole segment 1432. The second fastener 512 fits into the fourth hole segment 1432. During the repair of air conditioner 1000, when the repairman removes the motor cover 1, the second fastener 512 in the mounting holes 142 other than the hoist hole 143 is completely loosened, causing the motor cover 1 to slide downwards. Due to the presence of the hoist hole 143, the second fastener 512 in the hoist hole 143 fits into the third hole section 1431 of the hoist hole 143, and the motor cover 1 will be hung on the second fastener 512 in the hoist hole 143, thus preventing the motor cover 1 from falling directly and hitting people. Finally, the second fastener 512 in the hoist hole 143 is removed to completely remove the motor cover 1, ensuring convenient after-sales installation of air conditioner 1000.

[0163] In some embodiments of this utility model, reference is made to the appendix. Figure 20 and attached Figure 21 As shown, the side plate 51 has multiple first positioning holes 511, and each of the two third flanges 14 has multiple second positioning holes 144. The second positioning holes 144 and the mounting holes 142 are spaced apart, and the second positioning holes 144 and the first positioning holes 511 are arranged opposite to each other. The inner top wall of the second positioning hole 144 has a folded edge 1441. In the direction from top to bottom, the folded edge 1441 is inclined towards the side of the impeller 3. The folded edge 1441 passes through the first positioning hole 511. The setting of the folded edge 1441 can limit and pre-position the side plate 51, ensuring that after the motor cover plate 1 is installed on the side plate 51, the second positioning hole 144 can be aligned with the first positioning hole 511, which facilitates the installation of the second fastener 512, reduces the connection difficulty between the motor cover plate 1 and the side plate 51, improves the assembly efficiency of the motor cover plate 1 and the side plate 51, and can prevent the two side plates 51 from tilting in opposite directions, further ensuring the normal assembly of the motor cover plate 1.

[0164] In a further embodiment of this utility model, reference is made to the appendix. Figure 21As shown, on the cross-section perpendicular to the width direction of the housing 200, the angle between the extension direction of the folded edge 1441 and the up and down direction is D, and satisfies: 10°≤D≤50°. This allows the motor cover plate 1 to be mounted onto the side plate 51 along the extension direction of the folded edge 1441, further ensuring that the second positioning hole 144 is aligned with the first positioning hole 511, facilitating the installation of the second fastener 512, reducing the difficulty of connecting the motor cover plate 1 and the side plate 51, and improving the assembly efficiency of the motor cover plate 1 and the side plate 51.

[0165] It should be noted that the gap between the folded edge 1441 and the inner edge of the first positioning hole 511 of the side plate 51 is less than or equal to 0.5mm, which facilitates the assembly of the motor cover plate 1.

[0166] Other configurations and operations of the fan assembly 10, the duct assembly 100, and the air conditioner 1000 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0167] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0168] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fan assembly, characterized in that, include: A motor cover plate, the motor cover plate including a body and a first flange, the first flange being connected to the lower end of the body and extending along the width direction of the body; An electric motor, which is mounted on the main body; The wind turbine is fixed to the output shaft of the motor and spaced apart from the motor cover plate. In the direction from top to bottom, the first flange is inclined toward the side of the wind turbine.

2. The wind turbine assembly according to claim 1, characterized in that, The upper surface of the first flange is provided with two water guide ribs. The two water guide ribs are located at both ends of the width direction of the first flange and are spaced apart. In the direction from the body to the wind turbine, the two water guide ribs extend toward each other.

3. The wind turbine assembly according to claim 1, characterized in that, The motor cover also includes two second flanges, which are respectively connected to both ends of the body in the width direction. The second flanges extend in the vertical direction, and in the direction from the body to the wind turbine, the two second flanges are inclined in a direction away from each other.

4. The wind turbine assembly according to claim 3, characterized in that, The angle between the first flange and the horizontal direction is A, and satisfies: 2°≤A≤10°; And / or, the angle between the arrangement direction of the body and the wind turbine and the second flange is B, and satisfies: 2°≤B≤10°.

5. The wind turbine assembly according to claim 3, characterized in that, The connection between the main body and the second flange is provided with a first reinforcing structure; And / or, a third flange is provided at the end of the second flange away from the body, the third flange extends in the vertical direction, and a second reinforcing structure is provided at the connection position between the third flange and the second flange.

6. The wind turbine assembly according to claim 1, characterized in that, The connection between the main body and the first flange is provided with a third reinforcing structure; And / or, the upper end and / or lower end of the body is provided with a fourth reinforcing structure, the fourth reinforcing structure extending along the width direction of the body.

7. The wind turbine assembly according to claim 1, characterized in that, The main body has a first boss protruding toward the side opposite to the wind turbine. The first boss has a fixing hole, and the motor passes through the fixing hole. Along the radial direction of the wind turbine, the outer edge of the bottom wall of the first boss is located outside the outer edge of the wind turbine.

8. The wind turbine assembly according to claim 7, characterized in that, Along the arrangement direction of the body and the wind turbine, the minimum gap between the wind turbine and the bottom wall of the first boss is C, and satisfies: 10mm≤C≤25mm.

9. The wind turbine assembly according to claim 7, characterized in that, The first protrusion is provided with a first reinforcing rib, which extends along the circumferential direction of the fixing hole; And / or, the first boss is provided with a plurality of second reinforcing ribs, the plurality of second reinforcing ribs extending along the radial direction of the fixing hole and spaced apart in the circumferential direction of the fixing hole.

10. The wind turbine assembly according to claim 7, characterized in that, The first protrusion has a recessed platform facing towards the side close to the wind turbine, and the fixing hole is provided on the recessed platform.

11. The wind turbine assembly according to claim 10, characterized in that, The recessed platform is provided with a third reinforcing rib, which extends along the circumferential direction of the fixing hole; And / or, the sinking platform is provided with a plurality of second protrusions protruding toward the side opposite to the wind turbine, and the plurality of second protrusions are spaced apart in the circumferential direction of the fixing hole.

12. The wind turbine assembly according to claim 10, characterized in that, The surface of the settling platform facing away from the wind turbine is provided with a fixing plate. The fixing plate surrounds the fixing hole. The inner wall of the fixing hole is provided with a radially outward recessed wiring groove. The end of the fixing plate facing away from the wind turbine is provided with a folded edge. Along the extension direction of the fixing plate, the folded edge is arranged opposite to the wiring groove. The folded edge bends and extends in a direction away from the center line of the fixing hole.

13. The wind turbine assembly according to claim 1, characterized in that, The main body has a fixing hole, the motor passes through the fixing hole, and the fan assembly further includes: A motor sealing plate is provided on the side of the body away from the impeller and is used to seal the fixing hole. The motor sealing plate is connected to the motor cover plate by a first fastener and / or snap-fit ​​connection.

14. The wind turbine assembly according to claim 13, characterized in that, The motor sealing plate and the motor cover plate are connected and snapped together by the first fastener, and the number of the first fastener is less than 3.

15. The wind turbine assembly according to claim 14, characterized in that, The motor sealing plate is provided with a plurality of buckles, which are spaced apart in the circumferential direction of the motor sealing plate. The body is provided with a plurality of mounting holes corresponding one-to-one with the plurality of buckles. The mounting holes include a first hole segment and a second hole segment arranged and connected along a first direction. Along the radial direction of the fixing hole, the size of the first hole segment is larger than the size of the second hole segment. The buckles are fitted in the second hole segment, and at least a portion of the buckles is located on the side of the body facing the wind turbine.

16. The wind turbine assembly according to claim 14, characterized in that, The lower end of the motor sealing plate is provided with a pin, the surface of the body facing away from the wind turbine is provided with a protrusion, the body is provided with a socket, the protrusion is opposite to the socket in the arrangement direction of the body and the wind turbine, the pin is inserted into the socket, and at least a portion of the pin is located on the side of the protrusion facing the wind turbine.

17. The wind turbine assembly according to claim 14, characterized in that, The motor sealing plate is provided with multiple buckles, which are spaced apart in the circumferential direction of the motor sealing plate. The main body is provided with multiple locking holes, which correspond one-to-one with the multiple buckles.

18. The wind turbine assembly according to claim 13, characterized in that, The motor sealing plate and the motor cover plate are connected by the first fastener. The motor sealing plate is provided with a plurality of mounting grooves, and the main body is provided with a plurality of mounting protrusions corresponding one-to-one with the plurality of mounting grooves. The mounting protrusions are located in the mounting grooves.

19. The wind turbine assembly according to claim 13, characterized in that, The motor sealing plate is made of plastic or foam.

20. A duct assembly, characterized in that, include: volute, the volute having a fan cavity ； According to any one of claims 1-19, the motor cover is disposed on the front end of the fan cavity, and the motor cover further includes a fourth flange, the fourth flange including a first segment, a second segment and a third segment. On a cross-section perpendicular to the width direction of the body, the first segment is connected to the upper end of the body and extends in a direction away from the wind turbine, the second segment is connected to the end of the first segment away from the wind turbine and extends upward, and the third segment is connected to the upper end of the second segment and extends in a direction away from the wind turbine.

21. An air conditioner, characterized in that, include: A housing, the housing including two side plates spaced apart in the width direction of the housing, the two side plates defining a heat exchange air duct; According to claim 20, the air duct assembly is disposed within the heat exchange air duct, the motor cover is located on the front side of the two side plates, the motor cover further includes two second flanges and two third flanges, the two second flanges are respectively connected to both ends in the width direction of the body, the two third flanges are respectively connected to the ends of the two second flanges away from the body, the second flanges and the third flanges both extend in the vertical direction, each of the two third flanges has a plurality of mounting holes for the second fastener to pass through and connect the motor cover to the side plate, at least one of the plurality of mounting holes of the third flange is a gourd hole, the gourd hole includes a third hole segment and a fourth hole segment arranged vertically, the third hole segment is connected to the upper end of the fourth hole segment, the diameter of the third hole segment is larger than the diameter of the fourth hole segment, and the second fastener fits in the fourth hole segment.

22. The air conditioner according to claim 21, characterized in that, The side plate has multiple first positioning holes, and each of the two third flanges has multiple second positioning holes. The second positioning holes are spaced apart from the mounting holes and are arranged opposite to the first positioning holes one by one. The inner top wall of the second positioning hole has a folded edge. In the direction from top to bottom, the folded edge is inclined toward the wind turbine side and passes through the first positioning hole.

23. The air conditioner according to claim 22, characterized in that, On a cross section perpendicular to the width of the shell, the angle between the extension direction of the folded edge and the up-down direction is D, and satisfies: 10°≤D≤50°.

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