Motor, fan and air conditioner

Abstract

The utility model discloses a motor, a fan and an air conditioner. The motor comprises a stator, a supporting shaft, a rotor and a waterproof structure. The stator comprises a cylinder part and an end part, the two axial ends of the cylinder part are a first end and a second end respectively, the end part is arranged at the first end, the end part and the cylinder part jointly define a containing cavity, and the second end is open to define a mounting opening. The supporting shaft penetrates through the containing cavity in the axial direction of the cylinder part and is supported at the end part. The rotor is installed in the containing cavity through the installation opening and arranged outside the supporting shaft in a sleeving mode. The waterproof structure is arranged at the second end and defines a water guide groove, at least part of the water guide groove protrudes to the side, away from the first end, of the second end, and the water guide groove extends downwards from the upper end of the installation opening and avoids the rotor. According to the motor, liquid can be reduced or prevented from entering the containing cavity, and installation of the rotor towards the interior of the containing cavity is simple.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a motor, a fan and an air conditioner. Background Art

[0002] The air conditioner outdoor unit is generally installed outdoors, and water may splash near the air conditioner fan motor. In some related technologies, water easily enters the motor, causing an internal short circuit in the motor and causing motor failure. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application is to propose a motor, which can reduce or prevent liquid from entering the accommodating chamber, and the installation of the rotor in the accommodating chamber is relatively simple.

[0004] The present application also proposes a fan having the above motor.

[0005] The present application also proposes an air conditioner having the above-mentioned fan.

[0006] According to the embodiment of the present application, the motor includes: a stator, the stator includes a barrel and an end, the axial ends of the barrel are respectively a first end and a second end, the end is arranged at the first end, and together with the barrel defines a accommodating cavity, and the second end is open to define a mounting opening; a support shaft, the support shaft is passed through the accommodating cavity along the axial direction of the barrel and supported by the end; a rotor, the rotor is installed in the accommodating cavity through the mounting opening and is sleeved outside the support shaft; a waterproof structure, the waterproof structure is arranged at the second end and defines a water guide groove, at least a part of the water guide groove protrudes to a side of the second end away from the first end, and the water guide groove extends from the upper end of the mounting opening downward and avoids the rotor.

[0007] According to the motor of the embodiment of the present application, by setting the stator in the form of one end open, the installation of the rotor into the accommodating cavity is relatively simple. The first end of the barrel is closed by setting the end, and the second end of the barrel is provided with a waterproof structure. When the liquid flows to the second end, the liquid can flow into the water guide groove at the second end, and the liquid in the guide groove can flow along the extension direction of the guide groove, that is, the liquid flows downward from the upper end of the installation opening along the water guide groove, so that the guide groove has a guiding effect on the liquid, so as to reduce or avoid the liquid from flowing into the accommodating cavity through the installation opening, thereby improving the reliability of the motor.

[0008] In some embodiments, the waterproof structure is disposed around the installation opening, and the water guide groove is an annular groove that surrounds the installation opening and opens in a direction away from the installation opening.

[0009] In some embodiments, the waterproof structure includes a first baffle and a second baffle which are arranged at intervals along the axial direction of the cylindrical portion, and an edge of the first baffle close to the mounting opening is connected to an edge of the second baffle close to the mounting opening, so as to form the water guide groove between the first baffle and the second baffle.

[0010] Further, an inlay groove which opens in a direction away from the first end is formed on the second end, the first baffle is embedded in the inlay groove, a plate thickness of the first baffle is less than or equal to a groove depth of the inlay groove, and the stator includes a solid portion which blocks a side of the first baffle away from the mounting opening.

[0011] Further, a stop portion is provided at a position of the inlay groove away from the first end and the mounting opening, a sinking groove is formed on the first baffle corresponding to the stop portion, and the stop portion is arranged in the sinking groove to block the first baffle from moving in a direction away from the first end.

[0012] In some embodiments, the waterproof structure is integrally injection-molded and connected with the stator.

[0013] In some embodiments, a connection portion between a peripheral wall surface of the cylindrical portion and an end surface of the second end is connected through a diversion inclined surface, and the diversion inclined surface is used for diverting water from the peripheral wall surface to the water guide groove.

[0014] In some embodiments, one end of the support shaft is fixed to the end portion, the other end is suspended, the motor further includes a bearing embedded in the rotor, and the bearing is sleeved on the support shaft so that the rotor can rotate around the support shaft.

[0015] Further, bearings are respectively sleeved at two axial ends of the support shaft.

[0016] In some embodiments, the rotor includes a plurality of split rotor cores and a plurality of magnets, and the stator includes a stator core and a stator winding.

[0017] According to the fan of the embodiment of the present application, it includes: the motor and the wind wheel described in the above embodiment, and the wind wheel is arranged at one axial end of the rotor and is drivingly connected with the rotor.

[0018] The fan according to the embodiment of the present application, by adopting the motor of the above embodiment, the stator is closed at the first end of the cylindrical part through setting. A waterproof structure is arranged at the second end of the cylindrical part. When the liquid flows to the second end, the liquid can flow into the water guide groove at the second end, and the liquid in the diversion groove can flow along the extension direction of the diversion groove, that is, the liquid flows downward from the upper end of the installation port in the water guide groove, so that the diversion groove plays a guiding effect on the liquid, so as to reduce or avoid the liquid flowing into the accommodating cavity through the installation port, improve the stability of the cooperation between the stator, the rotor and the support shaft, improve the reliability of the motor, and thus improve the reliability of the fan.

[0019] In some embodiments, the wind wheel is formed with a receiving groove recessed in a direction away from the motor, at least a part of the motor is embedded in the receiving groove, and one end face of the wind wheel facing the motor is attached to one end face of the rotor facing the wind wheel.

[0020] In some embodiments, one side of the rotor facing the wind wheel has a driving part, and the rotor is fixedly connected to the wind wheel through the driving part. The driving parts are multiple and spaced around the support shaft.

[0021] In some embodiments, one side of the rotor facing the wind wheel has a first positioning structure, and one side of the wind wheel facing the rotor has a second positioning structure. The first positioning structure and the second positioning structure are inserted and matched along the axial direction of the support shaft. The first positioning structures are multiple and spaced around the support shaft.

[0022] The air conditioner according to the embodiment of the present application includes the motor of the above embodiment or includes the fan of the above embodiment.

[0023] The air conditioner according to the embodiment of the present application, by adopting the motor of the above embodiment or the fan of the above embodiment, the end is closed at the first end of the cylindrical part through setting. A waterproof structure is arranged at the second end of the cylindrical part. When the liquid flows to the second end, the liquid can flow into the water guide groove at the second end, and the liquid in the diversion groove can flow along the extension direction of the diversion groove, that is, the liquid flows downward from the upper end of the installation port in the water guide groove, so that the diversion groove plays a guiding effect on the liquid, so as to reduce or avoid the liquid flowing into the accommodating cavity through the installation port, improve the stability of the cooperation between the stator, the rotor and the support shaft, improve the reliability of the motor, and thus improve the reliability of the air conditioner.

[0024] The additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present application. Description of the Drawings

[0025] Figure 1 It is a cross-sectional structure diagram of a motor according to an embodiment of the present application;

[0026] Figure 2 is a cross-sectional view of a stator and a waterproof structure according to an embodiment of the present application;

[0027] Figure 3 is Figure 2 a partial enlarged view of the stator and the waterproof structure shown at the embedding groove;

[0028] Figure 4 is a cross-sectional view of a stator according to an embodiment of the present application;

[0029] Figure 5 is Figure 4 a three-dimensional structure view of the stator shown;

[0030] Figure 6 is a cross-sectional view of a waterproof structure according to an embodiment of the present application;

[0031] Figure 7 is Figure 6 a three-dimensional structure view of the waterproof structure shown;

[0032] Figure 8 is a cross-sectional view of a fan according to an embodiment of the present application;

[0033] Figure 9 is a structural schematic diagram of a rotor according to an embodiment of the present application;

[0034] Figure 10 is a structural schematic diagram of a rotor according to another embodiment of the present application;

[0035] Figure 11 is a structural schematic diagram of a wind wheel according to an embodiment of the present application;

[0036] Figure 12 is Figure 11 a partial structure diagram of the wind wheel shown at the second positioning structure;

[0037] Figure 13 is an exploded view of a fan according to an embodiment of the present application.

[0038] Reference numerals:

[0039] fan 1000,

[0040] motor 100,

[0041] stator 10, cylindrical part 11, first end 111, second end 112, end part 12, accommodation cavity 13, installation opening 14, embedding groove 15, stop part 151, solid part 16, guide inclined surface 17, peripheral wall surface 18, stator core 191, stator winding 192,

[0042] Support shaft 20,

[0043] rotor 30, split rotor core 31, magnet 32, drive unit 33, first positioning structure 34, shaft hole 35, rib plate 36, waterproof structure 40, water guide groove 41, first baffle 42, second baffle 43, sinking groove 44,

[0044] bearing 50,

[0045] wind wheel 200, accommodation groove 210, second positioning structure 220, hub 240, blade 250. Specific embodiments

[0046] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where 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 drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application.

[0047] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the applicability of other processes and / or the use of other materials.

[0048] The motor 100, the fan 1000 and the air conditioner according to the embodiments of the present application will be described below with reference to the drawings.

[0049] As Figure 1 , Figure 2 shown, the motor 100 according to the embodiment of the present application includes: a stator 10, a support shaft 20, a rotor 30 and a waterproof structure 40.

[0050] The stator 10 includes a cylindrical portion 11 and end portions 12. The two axial ends of the cylindrical portion 11 are a first end 111 and a second end 112 respectively. The end portion 12 is provided at the first end 111 and together with the cylindrical portion 11 defines a receiving cavity 13. The second end 112 is open to define an installation opening 14. The support shaft 20 is axially disposed through the receiving cavity 13 along the cylindrical portion 11 and supported by the end portion 12. The rotor 30 is installed in the receiving cavity 13 through the installation opening 14 and sleeved outside the support shaft 20, which facilitates the installation of the rotor 30 in the receiving cavity 13. The waterproof structure 40 is provided at the second end 112 and defines a water guide groove 41. At least a part of the water guide groove 41 protrudes to the side of the second end 112 away from the first end 111. The water guide groove 41 extends downward from the upper end of the installation opening 14 while avoiding the rotor 30, so as to reduce or avoid interference of the water guide groove 41 with the rotation of the rotor 30 relative to the stator 10.

[0051] Thus, by setting the stator 10 in the above-mentioned form with one end open, the installation of the rotor 30 into the receiving cavity 13 is relatively simple. Moreover, the first end 111 of the cylindrical portion 11 is closed by providing the end portion 12, and the waterproof structure 40 is provided at the second end 112 of the cylindrical portion 11. When liquid flows to the second end 112, the liquid can flow into the water guide groove 41 at the second end 112, and the liquid in the diversion groove can flow along the extension direction of the diversion groove, that is, the liquid flows downward in the water guide groove 41 from the upper end of the installation opening 14, so that the diversion groove has a diversion effect on the liquid, to reduce or avoid the liquid flowing into the receiving cavity 13 through the installation opening 14, and improve the reliability of the motor 100.

[0052] In this application, the connection relationship between the support shaft 20, the rotor 30 and the stator 10 is not limited. For example, the support shaft 20 is fixed to the stator 10, and the rotor 30 is rotatably sleeved on the support shaft 20.

[0053] In some embodiments, such as Figure 1 、 Figure 6 and Figure 7 shown, the waterproof structure 40 is arranged around the installation opening 14, and the water guide groove 41 is an annular groove that surrounds the installation opening 14 and opens in a direction away from the installation opening 14.

[0054] Thus, the liquid surrounding the installation opening 14 at the second end 112 can flow into the water guide groove 41, and the liquid in the water guide groove 41 can flow around the installation opening 14 and downward under the guidance of the water guide groove 41, so that the liquid flows to the lower part of the installation opening 14 under the action of gravity and the guidance of the water guide groove 41. Thus, the water guide groove 41 can guide the liquid around the circumference of the installation opening 14 to avoid flowing through the installation opening 14, further reducing or avoiding the liquid flowing into the receiving cavity 13 through the installation opening 14, and further improving the reliability of the motor 100.

[0055] In some embodiments, such as Figure 2 、Figure 6 and Figure 7 As shown in Figure 7 , the waterproof structure 40 includes a first baffle 42 and a second baffle 43 that are axially spaced along the barrel portion 11. The edge of the first baffle 42 close to the mounting opening 14 is connected to the edge of the second baffle 43 close to the mounting opening 14 to form a water guide groove 41 between the first baffle 42 and the second baffle 43.

[0056] Thus, the water guide groove 41 and the mounting opening 14 are spaced apart by the edges of the first baffle 42 and the second baffle 43, so that the liquid in the water guide groove 41 and the mounting opening 14 are spaced apart by the edges of the first baffle 42 and the second baffle 43, thereby reducing or avoiding the liquid in the water guide groove 41 from flowing to the mounting opening 14.

[0057] At the same time, the first baffle 42 and the second baffle are axially spaced, so that the extending direction of the water guide groove 41 is perpendicular to the axial direction, thereby reducing the axial movement of the liquid in the water guide groove 41 and reducing or avoiding the liquid from flowing out of the water guide groove 41 along the axial direction and flowing to the mounting opening 14.

[0058] Furthermore, as shown in Figures 3 - 5 Figures 3 - 5 a fitting groove 15 that opens in a direction away from the first end 111 is formed on the second end 112. The first baffle 42 is embedded in the fitting groove 15. The plate thickness t1 of the first baffle 42 is less than or equal to the groove depth t2 of the fitting groove 15. The stator 10 includes a solid portion 16 that blocks the side of the first baffle 42 away from the mounting opening 14. The solid portion 16 can prevent the waterproof structure 40 from leaving the stator 10 in a direction away from the mounting opening 14.

[0059] It can be understood that the plate thickness t1 of the first baffle 42 is less than or equal to the groove depth t2 of the fitting groove 15, so that the surface of the first baffle 42 away from the first end 111 can be flush with the surface of the second end 112 away from the first end 111, or the surface of the first baffle 42 away from the first end 111 is recessed relative to the surface of the second end 112 away from the first end 111.

[0060] Thus, when the liquid flows along the end face of the second end 112 to the water guide groove 41, it can directly flow through the surface of the first baffle 42 away from the first end 111 to between the first baffle 42 and the second baffle 43, reducing or avoiding the blockage of the first baffle 42 when the liquid flows from the end of the second end 112 to the water guide groove 41. Thereby, the smoothness of the liquid flowing to the water guide groove 41 can be improved, and the splashing of the liquid caused by the blockage of the first baffle 42 can be reduced or avoided, so as to reduce or avoid the risk of the liquid splashing and entering the accommodation cavity 13 from the mounting opening 14.

[0061] In addition, the inlay groove 15 can define the connection position of the waterproof structure 40 at the second end 112, and the first baffle 42 and the inner wall of the inlay groove 15 cooperate to form a labyrinth seal, which can reduce or prevent liquid from flowing from between the first baffle 42 and the inner wall of the inlay groove 15 to the mounting opening 14.

[0062] Furthermore, as Figure 3 shown, the inlay groove 15 is provided with a stop portion 151 at a position away from the first end 111 and the mounting opening 14. The first baffle 42 is formed with a sunk groove 44 corresponding to the stop portion 151, and the stop portion 151 is disposed in the sunk groove 44 to block the first baffle 42 from moving in a direction away from the first end 111.

[0063] Thus, the stop portion 151 can define the axial position of the first baffle 42 in the inlay groove 15, improve the stability of the relative axial position of the waterproof structure 40 with respect to the stator 10, and thereby improve the reliability of the liquid guiding effect of the water guiding groove 41. At the same time, the stop portion 151 can increase the contact area between the first baffle 42 and the inner wall of the inlay groove 15, and improve the sealing performance between the first baffle 42 and the inner wall of the inlay groove 15. Thereby further improving the effect of the water guiding groove 41 to guide liquid away from the mounting opening 14.

[0064] In some embodiments, the waterproof structure 40 and the stator 10 are integrally injection-molded and connected, which can reduce the number of molds required for manufacturing the waterproof structure 40 and the stator 10, and simplify the manufacturing process of the stator 10 and the waterproof structure 40. At the same time, it can reduce or avoid the generation of gaps between the waterproof structure 40 and the stator 10, and reduce or avoid liquid from flowing from the gap at the connection between the waterproof structure 40 and the stator 10 to the mounting opening 14.

[0065] In this application, there is no limitation on the material of the waterproof structure 40. Preferably, the waterproof structure 40 is a bulk molding compound part.

[0066] In some embodiments, as Figure 2 shown, the connection between the peripheral wall surface 18 of the cylindrical portion 11 and the end surface of the second end 112 is connected by a guiding slope 17, and the guiding slope 17 is used for guiding liquid from the peripheral wall surface 18 to the water guiding groove 41.

[0067] Thus, the liquid on the peripheral wall surface 18 of the cylindrical portion 11 can flow through the guiding slope 17 into the water guiding groove 41, improving the smoothness of the liquid flowing from the peripheral wall surface 18 of the cylindrical portion 11 to the water guiding groove 41, and reducing or avoiding the generation of splashing of the liquid during the process of flowing from the peripheral wall surface 18 of the cylindrical portion 11 to the water guiding groove 41, and further reducing or avoiding the risk of the liquid splashing and entering the accommodation cavity 13 from the mounting opening 14.

[0068] In some embodiments, as Figure 1As shown, one end of the support shaft 20 is fixed to the end portion 12 to stabilize the setting position of the support shaft 20 in the stator 10, and the other end is suspended so that the support shaft 20 can be axially spaced apart from the wind turbine 200 to prevent the support shaft 20 from affecting the rotation of the wind turbine 200.

[0069] The motor 100 further includes a bearing 50 embedded in the rotor 30. The bearing 50 is sleeved on the support shaft 20 so that the rotor 30 can rotate around the support shaft 20. Thus, the rotation axis of the rotor 30 extends along the support shaft 20, and the setting position of the support shaft 20 in the stator 10 is stable, making the rotation axis stable when the rotor 30 is sleeved on the support shaft 20, so as to achieve the stable rotation of the rotor 30 relative to the stator 10 with a fixed rotation axis.

[0070] Furthermore, as Figure 1 shown, bearings 50 are respectively sleeved on both axial ends of the support shaft 20. Thus, the rotor 30 can be supported by the support shaft 20 at different axial positions through the bearings 50 at both ends of the support shaft 20, so as to improve the stability of the position of the rotor 30 relative to the support shaft 20, thereby improving the stability of the rotation axis of the rotor 30, that is, improving the stability of the rotation of the rotor 30.

[0071] In some embodiments, as Figure 1 、 Figure 4 、 Figure 9 and Figure 10 shown, the rotor 30 includes a plurality of split rotor cores 31 and a plurality of magnets 32, and the stator 10 includes a stator core 191 and a stator winding 192. To achieve driving the rotor 30 to rotate relative to the stator 10. Among them, using a plurality of split rotor cores 31 can reduce the magnetic leakage effect of the magnetic field conduction on the split rotor cores 31.

[0072] Preferably, the plurality of split rotor cores 31 and the plurality of magnets 32 are axially encapsulated by a polymer composite, which can reduce or avoid the axial movement of the magnets 32, reduce or avoid the axial detachment of the split rotor cores 31 from the rotor 30, and improve the structural stability and rotation stability of the rotor 30. Among them, the material of the polymer composite is preferably polybutylene terephthalate (PBT).

[0073] Preferably, when the stator 10 includes a cylindrical portion 11 and an end portion 12, the stator core 191 and the stator winding 192 are integrally injection molded in the cylindrical portion 11, so as to insulate and waterproof the stator core 191 and the stator winding 192. Among them, the cylindrical portion 11 and the end portion 12 are preferably bulk molding compound parts.

[0074] As Figure 8As shown, a wind turbine 1000 according to an embodiment of the present application includes a wind wheel 200 and the motor 100 of the above embodiment. The wind wheel 200 is arranged at one axial end of the rotor 30 and is drivingly connected to the rotor 30 so that the rotor 30 drives the wind wheel 200 to rotate.

[0075] The fan 1000 of the present application adopts the motor 100 of the above embodiment, and the stator 10 is closed at the first end 111 of the barrel 11 by setting the end 12. The second end 112 of the barrel 11 is provided with a waterproof structure 40, and when the liquid flows to the second end 112, the liquid can flow into the water guide groove 41 at the second end 112, and the liquid in the guide groove can flow along the extension direction of the guide groove, that is, the liquid flows downward from the upper end of the installation opening 14 along the water guide groove 41, so that the guide groove has a guiding effect on the liquid, so as to reduce or avoid the liquid from flowing into the accommodating cavity 13 through the installation opening 14, improve the stability of the coordination between the stator 10, the rotor 30 and the support shaft 20, improve the reliability of the motor 100, and thus improve the reliability of the fan 1000.

[0076] In some embodiments, Figure 8 As shown, the wind wheel 200 is formed with a receiving groove 210 which is recessed in a direction away from the motor 100, and at least a portion of the motor 100 is embedded in the receiving groove 210. It can be understood that the receiving groove 210 is recessed in a direction away from the motor 100, that is, the receiving groove 210 is recessed axially away from the motor 100.

[0077] Thus, the motor 100 can be partially embedded in the receiving groove 210 along the axial direction, which can reduce the overall axial size of the fan 1000. At the same time, the receiving groove 210 can limit the connection position of the motor 100 to the wind wheel 200, simplify the connection operation between the wind wheel 200 and the motor 100, reduce or avoid installation errors between the motor 100 and the wind wheel 200, and play a fool-proof role.

[0078] In addition, the end surface of the wind wheel 200 facing the motor 100 is in contact with the end surface of the rotor 30 facing the wind wheel 200. As a result, the rotor 30 can stop against the wind wheel 200 at different positions outside the rotation axis, thereby reducing or avoiding the shaking of the wind wheel 200 relative to the rotor 30 along the axis, and improving the stability of the rotor 30 driving the wind wheel 200 to rotate.

[0079] At the same time, the relative position of the rotor 30 and the wind wheel 200 along the axial direction can be limited, the axial movement of the wind wheel 200 relative to the rotor 30 can be reduced or avoided, the stability of the connection between the rotor 30 and the wind wheel 200 can be improved, and the stability of the motor 100 driving the wind wheel 200 to rotate can be improved. In addition, the relative position of the rotor 30 and the wind wheel 200 along the axial direction can be easily positioned, simplifying the connection operation between the wind wheel 200 and the rotor 30.

[0080] In some embodiments, such as Figure 9 , Figure 10 shown, one side of the rotor 30 facing the wind wheel 200 has a driving portion 33. The rotor 30 is fixedly connected to the wind wheel 200 through the driving portion 33 to define the axial position of the rotor 30 relative to the wind wheel 200, and the rotor 30 can apply a driving force tangential to the rotation axis to the wind wheel 200 through the driving portion 33, so that the rotor 30 drives the wind wheel 200 to rotate through the driving portion 33.

[0081] Meanwhile, there are multiple driving portions 33 which are spaced apart and surround the support shaft 20. Thus, the rotor 30 is fixedly connected to the wind wheel 200 at multiple positions around the rotation axis, which can reduce or avoid the axial sway of the wind wheel 200 relative to the rotor 30. And the rotor 30 can apply a driving force to rotate the wind wheel 200 at multiple positions around the rotation axis, so that the rotor 30 can disperse the driving force on the wind wheel 200 at multiple driving portions 33 around the rotation axis, improving the stability of the rotor 30 driving the wind wheel 200 to rotate.

[0082] Preferably, the driving portion 33 is eccentrically arranged relative to the support shaft 20.

[0083] In this application, the structure of the driving portion 33 is not limited. For example, in the example of Figure 9 , the driving portion 33 is formed as a connecting hole, and the rotor 30 is fixedly connected to the wind wheel 200 through a fastener passing through the wind wheel 200 and the connecting hole. Another example is that in the example of Figure 10 , the driving portion 33 is formed as a hot melt column, and the wind wheel 200 has a mounting hole corresponding to the hot melt column. The hot melt column passes through the mounting hole, and the rotor 30 is fixedly connected to the wind wheel 200 through the hot melting of the hot melt column.

[0084] In some embodiments, such as Figure 9 , Figure 10 and Figure 12 shown, one side of the rotor 30 facing the wind wheel 200 has a first positioning structure 34, and one side of the wind wheel 200 facing the rotor 30 has a second positioning structure 220. The first positioning structure 34 and the second positioning structure 220 are inserted and matched along the axial direction of the support shaft 20.

[0085] Thus, the first positioning structure 34 and the second positioning structure 220 are inserted and matched at a position far from the rotation axis of the wind wheel 200 and the rotor 30, which can define the relative position of the wind wheel 200 and the rotor 30 in the tangential direction of the rotation axis to ensure the synchronous rotation of the wind wheel 200 with the rotor 30. At the same time, the insertion and matching of the first positioning structure 34 and the second positioning structure 220 can play a guiding role in the connection position of the rotor 30 on the wind wheel 200, facilitating the connection of the rotor 30 and the wind wheel 200 at the correct position, and the installation method is relatively simple, which can reduce the operation difficulty of installing the rotor 30 and the wind wheel 200.

[0086] Preferably, the first positioning structure 34 abuts against the second positioning structure 220 along the tangential direction of the rotation axis, so that the rotor 30 can apply a driving force tangential to the rotation axis to the second positioning structure 220 through the first positioning structure 34, so as to drive the wind wheel 200 to rotate synchronously with the rotor 30.

[0087] Furthermore, there are multiple first positioning structures 34 which are spaced apart and surround the support shaft 20. Correspondingly, there are multiple second positioning structures 220 on the side of the wind wheel 200 facing the rotor 30 which are spaced apart and surround the support shaft 20.

[0088] Thus, the first positioning structure 34 and the second positioning structure 220 can be inserted and matched at different positions around the rotation axis of the rotor 30 and the wind wheel 200, so as to define the relative positions between the rotor 30 and the wind wheel 200 at multiple positions around the rotation axis, improve the stability of the relative positions of the rotor 30 and the wind wheel 200 around the rotation axis, and improve the stability of the synchronous rotation of the wind wheel 200 with the rotor 30.

[0089] Furthermore, one of the first positioning structure 34 and the second positioning structure 220 is a groove, and the other is a convex block. The convex block can be axially inserted into the groove to realize the insertion and matching of the first positioning structure 34 and the second positioning structure 220.

[0090] Preferably, as Figure 9 , Figure 10 shown, the rotor 30 is formed with a shaft hole 35 passing through the support shaft 20. The rotor 30 includes a plurality of rib plates 36 spaced around the shaft hole 35. The rib plates 36 extend radially along the shaft hole 35, and a groove is formed between two adjacent rib plates 36.

[0091] Preferably, as Figure 9 , Figure 10 shown, the rib plate 36 is formed with a driving portion 33 at one end away from the shaft hole 35 in the radial direction of the shaft hole 35. The rotor 30 is fixedly connected to the wind wheel 200 through the driving portion 33.

[0092] In some embodiments, as Figure 11 and Figure 13 shown, the wind wheel 200 is an axial flow wind wheel which includes a hub 240 and blades 250 arranged on the circumferential side of the hub 240. The hub 240 is drivingly connected to the rotor 11, and the rotor 11 drives the hub 240 to rotate to realize the rotation of the blades 250.

[0093] Exemplarily, the axial flow impeller 200 includes a plurality of blades 250 disposed on a hub 240. The trailing edge region of the blade 250 is recessed toward the intake direction of the leading edge of the blade 250. The plurality of blades 250 are centered on the rotation central axis of the impeller 200. The axial flow impeller 200 can reduce air flow noise and increase the air volume. The specific structure and principle of the axial flow impeller 200 are well known to those skilled in the art and will not be elaborated herein.

[0094] Of course, the present application is not limited thereto. In other embodiments of the present application, the impeller 200 can also be of other types, such as cross-flow impellers, centrifugal impellers, etc.

[0095] The air conditioner according to the embodiment of the present application includes the motor 100 of the above embodiment or the blower 1000 of the above embodiment. Among them, the type of the air conditioner is not limited and can be an integrated air conditioner (such as a kitchen air conditioner, a window air conditioner, etc.), or a split air conditioner (such as a split cabinet air conditioner, a split wall-mounted air conditioner, etc.), or a ceiling-mounted air conditioner, a duct air conditioner, and so on.

[0096] In the air conditioner of the present application, by adopting the motor 100 of the above embodiment or the blower 1000 of the above embodiment, the first end 111 of the cylindrical portion 11 is closed by providing an end portion 12. A waterproof structure 40 is provided at the second end 112 of the cylindrical portion 11. When the liquid flows to the second end 112, the liquid can flow into the water guide groove 41 at the second end 112. The liquid in the diversion groove can flow along the extension direction of the diversion groove, that is, the liquid flows downward from the upper end of the installation port 14 along the water guide groove 41, so that the diversion groove plays a guiding effect on the liquid, so as to reduce or avoid the liquid flowing into the accommodation cavity 13 through the installation port 14, improve the stability of the cooperation between the stator 10, the rotor 30 and the support shaft 20, improve the reliability of the motor 100, and thus improve the reliability of the air conditioner.

[0097] The other constitutions and operations of the motor 100, the blower 1000 and the air conditioner according to the embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail here.

[0098] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0099] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0100] In the present application, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal connection or interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0101] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0102] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0103] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A motor, characterized in that: include: A stator, the stator comprising a barrel and an end portion, the two axial ends of the barrel being respectively a first end and a second end, the end portion being arranged at the first end and defining a containing cavity together with the barrel portion, and the second end being open to define a mounting opening; A support shaft, the support shaft is arranged in the accommodating cavity along the axial direction of the cylinder and is supported at the end; A rotor, the rotor is installed in the accommodating cavity through the installation opening and is sleeved outside the supporting shaft; A waterproof structure is provided at the second end and defines a water guide groove, at least part of the water guide groove protrudes to a side of the second end away from the first end, and the water guide groove extends downward from the upper end of the installation opening and avoids the rotor.

2. The motor according to claim 1, characterized in that The waterproof structure is arranged around the installation opening, and the water guide groove is an annular groove that surrounds the installation opening and opens in a direction away from the installation opening.

3. The motor according to claim 1, characterized in that The waterproof structure includes a first baffle and a second baffle arranged at intervals along the axial direction of the cylinder, and an edge of the first baffle close to the installation opening is connected to an edge of the second baffle close to the installation opening to form the water guide groove between the first baffle and the second baffle.

4. The motor according to claim 3, characterized in that The second end is formed with an embedding groove which is open toward the direction away from the first end, the first baffle is embedded in the embedding groove, the thickness of the first baffle is less than or equal to the groove depth of the embedding groove, and the stator includes a solid portion which blocks the side of the first baffle away from the installation port.

5. The motor according to claim 4, characterized in that The embedding groove is provided with a stopper at a position away from the first end and the installation opening, the first baffle is formed with a recessed groove corresponding to the stopper, and the stopper is provided in the recessed groove to prevent the first baffle from moving in a direction away from the first end.

6. The motor according to claim 1, characterized in that The waterproof structure is integrally connected to the stator by injection molding.

7. The motor according to claim 1, characterized in that The connection between the peripheral wall surface of the cylinder portion and the end surface of the second end is connected via a guide slope, and the guide slope is used to guide water from the peripheral wall surface to the water guide groove.

8. The motor according to any one of claims 1 to 7, characterized in that One end of the support shaft is fixed to the end portion, and the other end is suspended. The motor further comprises a bearing embedded in the rotor, and the bearing is sleeved on the support shaft so that the rotor can rotate around the support shaft.

9. The motor according to claim 8, characterized in that The bearings are respectively sleeved on both axial ends of the support shaft.

10. The motor according to claim 8, characterized in that The rotor includes a plurality of segment rotor cores and a plurality of magnets, and the stator includes a stator core and a stator winding.

11. A fan, characterized in that: include: The motor and wind wheel according to any one of claims 8 to 10, wherein the wind wheel is arranged at one axial end of the rotor and is drivingly connected to the rotor.

12. The fan according to claim 11, characterized in that The wind wheel is formed with a receiving groove which is recessed in a direction away from the motor, and at least a portion of the motor is embedded in the receiving groove. An end face of the wind wheel facing the motor is fitted with an end face of the rotor facing the wind wheel.

13. The fan according to claim 11, characterized in that: The rotor has a driving part on one side facing the wind wheel, and the rotor is fixedly connected to the wind wheel via the driving part. There are a plurality of driving parts that surround the support shaft at intervals.

14. The fan according to claim 11, characterized in that: The side of the rotor facing the wind wheel has a first positioning structure, and the side of the wind wheel facing the rotor has a second positioning structure. The first positioning structure and the second positioning structure are plugged together along the axial direction of the support shaft. There are multiple first positioning structures and they are spaced around the support shaft.

15. An air conditioner, characterized in that: It comprises a motor according to any one of claims 1-10, or a fan according to any one of claims 11-14.

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