Fan and air conditioner with same

Abstract

The fan comprises a wind wheel and a motor, the wind wheel is a cross-flow wind wheel and comprises a wind wheel body, a first end cover and a second end cover, the first end cover and the second end cover are arranged at the two axial ends of the wind wheel body, and the motor is arranged on the side, away from the first end cover, of the second end cover. The motor is an outer rotor motor and comprises a stator and a rotor in running fit with the stator, the rotor comprises a rotor magnetic ring and a mounting plate, the rotor magnetic ring and the wind wheel are coaxially arranged, the mounting plate is located between the rotor magnetic ring and the second end cover, and the mounting plate is stacked on the second end cover and connected with the rotor magnetic ring and the second end cover. According to the fan provided by the utility model, the rotor magnetic ring is connected with the second end cover by arranging the mounting plate, and the motor can be adapted to wind wheels with various shapes and specifications through the mounting plate, so that the axial length of the fan can be reduced, the standardized production of the rotor magnetic ring can be realized, and the manufacturing cost of the motor can be reduced.

Description

Technical Field

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

[0002] Some fans in related technologies include a cross-flow impeller and a drive motor. The drive motor is located at one axial end of the cross-flow impeller, and the drive motor extends a rotating shaft towards the cross-flow impeller. The end of the rotating shaft is connected to the cross-flow impeller to drive the cross-flow impeller to rotate. This type of fan has a large overall axial length and occupies a lot of space. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a fan in which the rotor magnetic ring of the fan is connected to the second end cover via a mounting plate stacked on top of the second end cover, thereby reducing the axial length of the fan and enabling standardized production of the rotor magnetic ring, thus saving manufacturing costs.

[0004] This utility model also proposes an air conditioner having the above-mentioned fan.

[0005] According to a first aspect of the present invention, a fan includes: a wind turbine, which is a cross-flow wind turbine and includes a wind turbine body and a first end cover and a second end cover disposed at both axial ends of the wind turbine body; a motor, which is disposed on the side of the second end cover away from the first end cover, the motor is an external rotor motor and includes a stator and a rotor rotatably engaged with the stator, the rotor including a rotor magnetic ring coaxially disposed with the wind turbine, and a mounting plate located between the rotor magnetic ring and the second end cover, the mounting plate being stacked on the second end cover and respectively connected to the rotor magnetic ring and the second end cover.

[0006] According to this utility model, the rotor magnetic ring is connected to the second end cover by a mounting plate. The motor can be adapted to various shapes and specifications of impellers through the mounting plate, thereby reducing the axial length of the fan and enabling standardized production of the rotor magnetic ring, which helps to reduce the manufacturing cost of the motor. Furthermore, since the mounting plate and the second end cover are stacked, the rotor magnetic ring and the impeller are coaxially arranged and together with the second end cover clamp the mounting plate, thereby shortening the axial distance between the impeller and the motor, and thus reducing the axial length of the fan.

[0007] In some embodiments, the second end cap and the mounting plate are integrally connected.

[0008] In some embodiments, the second end cap is detachably connected to the mounting plate.

[0009] In some embodiments, the second end cap and the mounting plate are engaged by an insertion structure that engages along the axial direction of the impeller.

[0010] In some embodiments, the plug-in structure includes a hollow shaft and a central hole. The hollow shaft is located at the center of the mounting plate, the central hole penetrates the second end cap, the hollow shaft is plugged into the central hole, a rotating shaft passes through the hollow shaft, a bearing is provided inside the stator, and the rotating shaft and the bearing are rotatably engaged.

[0011] In some embodiments, the bearing is a sliding bearing, and the rotating shaft is inserted into the sliding bearing and has a clearance fit with the sliding bearing.

[0012] In some embodiments, the plug-in structure includes an eccentric protrusion and an eccentric slot. The eccentric protrusion is disposed on one of the mounting plate and the second end cover and is eccentrically disposed with respect to the axis of the wind turbine. The eccentric slot is disposed on the other of the mounting plate and the second end cover and is plugged into correspondingly with the eccentric protrusion.

[0013] In some embodiments, the eccentric protrusions are multiple and spaced apart circumferentially along the wind turbine.

[0014] In some embodiments, the mounting plate is integrally connected to the rotor magnetic ring.

[0015] In some embodiments, the mounting plate has a mounting base protruding in a direction away from the cross-flow impeller, and the mounting plate is integrally connected to the rotor magnetic ring via the mounting base.

[0016] In some embodiments, the mounting base is formed as an annulus extending circumferentially along the rotor magnetic ring, and the rotor magnetic ring is connected to the mounting base throughout the entire circumferential direction.

[0017] In some embodiments, the mounting base includes a base portion, a seat end face of the base portion facing the motor, a rotor end face of the rotor magnetic ring near the wind turbine body, and the seat end face connected to the rotor end face; and / or, the mounting base includes a base portion and a seat flange, the seat flange protruding from the base portion in a direction away from the wind turbine body, the seat flange being located in the outer peripheral region of the rotor magnetic ring and connected to the outer peripheral surface of the rotor magnetic ring.

[0018] In some embodiments, at least one of the rotor magnetic ring and the fixed base has a positioning structure that mates with the other to limit the relative movement of the rotor magnetic ring and the fixed base along the radial direction of the rotor magnetic ring.

[0019] In some embodiments, the positioning structure includes a protrusion disposed on the rotor magnetic ring and extending toward the direction close to the wind turbine body, wherein the protrusion is embedded in the fixing seat; or, the protrusion extends to the side of the fixing seat close to the central axis of the rotor magnetic ring; or, the protrusion extends to the side of the fixing seat away from the central axis of the rotor magnetic ring.

[0020] In some embodiments, the protrusion is annular, or the protrusion is a plurality of protrusions spaced apart circumferentially along the rotor magnetic ring.

[0021] In some embodiments, the second end cap is integrally connected to the wind turbine body.

[0022] In some embodiments, the second end cover is provided with a plurality of insertion holes, which are spaced apart along the circumference of the wind turbine body. The wind turbine body includes a plurality of blades, which are inserted into and engaged with the plurality of insertion holes. The wind turbine body is integrally connected to the second end cover through the blades.

[0023] In some embodiments, the rotor further includes a rotor retainer ring disposed on the side of the mounting plate away from the wind turbine body and connected to the mounting plate, the rotor retainer ring surrounding the rotor magnetic ring circumferentially.

[0024] In some embodiments, the rotor retaining ring is integrally connected to the mounting plate, or the rotor retaining ring is detachably connected to the mounting plate.

[0025] An air conditioner according to a second aspect of the present invention includes: a chassis and a fan, wherein the fan is the same as the fan according to a first aspect of the present invention, a first end cover is rotatably supported on the chassis by a fan bearing, and the motor further includes a stator cover, wherein the stator is fixedly mounted on the chassis by the stator cover.

[0026] According to the air conditioner of this utility model, by incorporating the fan of the first aspect of this utility model, the rotor is connected to the impeller via a mounting plate, thereby enabling standardized rotor production and reducing motor manufacturing costs. The stator is fixedly connected to the chassis, which improves the coaxiality of the rotor and stator, enhances the reliability of their rotational engagement, reduces friction between the rotor and stator, reduces stator oscillation, and improves the operational stability of the air conditioner.

[0027] In some embodiments, the air conditioner is a wall-mounted air conditioner, and the axis of the cross-flow fan is in the left-right direction.

[0028] 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

[0029] Figure 1 This is an exploded view of a portion of the structure of a wind turbine according to an embodiment of the present invention;

[0030] Figure 2 This is an exploded view of another part of the structure of the wind turbine according to one embodiment of the present invention;

[0031] Figure 3 This is a partial cross-sectional view of a wind turbine according to an embodiment of the present invention;

[0032] Figure 4 It is based on Figure 3 A magnified view of region A in the example shown;

[0033] Figure 5 This is a partial cross-sectional view of a fan according to an embodiment of the present invention;

[0034] Figure 6 This is a cross-sectional view of the wind turbine according to another embodiment of the present invention;

[0035] Figure 7 It is based on Figure 6 A magnified view of region B in the example shown;

[0036] Figure 8 This is a schematic diagram of the rotor according to Embodiment 1 of the present utility model;

[0037] Figure 9 It is based on Figure 8 The cross-sectional view of the rotor shown in the example;

[0038] Figure 10 This is a schematic diagram of the rotor according to Embodiment 2 of this utility model;

[0039] Figure 11 It is based on Figure 10 The cross-sectional view of the rotor shown in the example;

[0040] Figure 12 This is a schematic diagram of the rotor according to Embodiment 3 of this utility model;

[0041] Figure 13 It is based on Figure 12 The cross-sectional view of the rotor shown in the example;

[0042] Figure 14 This is a schematic diagram of the rotor according to Embodiment 4 of this utility model;

[0043] Figure 15 It is based on Figure 14 The cross-sectional view of the rotor shown in the example;

[0044] Figure 16 This is a schematic diagram of the rotor according to Embodiment 5 of this utility model;

[0045] Figure 17 It is based on Figure 16 The cross-sectional view of the rotor shown in the example;

[0046] Figure 18 This is a partial structural schematic diagram of an air conditioner according to an embodiment of the present utility model;

[0047] Figure 19 This is an exploded view of a portion of the structure of an air conditioner according to an embodiment of the present invention.

[0048] Figure label:

[0049] Air conditioner 100;

[0050] Chassis 10;

[0051] Fan 20;

[0052] 2. Wind turbine; 2a. Wind turbine body; 21. Wind blade; 211. First end cover; 22. Second end cover; 23. Insertion hole; 231. Insertion structure; 24. Hollow shaft; 241. Center hole; 242. Eccentric protrusion; 243. Eccentric slot; 244. Fan bearing; 25. Motor; 3. Rotor; 311. Rotor magnetic ring; 311b. Rotor end face; 311a. Positioning structure; 3111. Protrusion; 3111. Shaft; 312. Mounting plate; 313. Fixed seat; 3131. Base part; 31311. Seat end face; 31311a. Seat flange; 31312. Rotor retaining ring; 314. Stator; 32. Stator cover; 34. Bearing; 37. Sliding bearing; 37a. Ball bearing; 371. Bearing seat; 372.

[0053] Fastener 40;

[0054] Motor cover 50. Detailed Implementation

[0055] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0056] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0057] The fan 20 of the first aspect of this utility model is described below with reference to the accompanying drawings.

[0058] According to the embodiment of the present utility model, the fan 20, such as Figure 1 and Figure 2 As shown, the fan 20 includes: a wind turbine 2 and a motor 3. The wind turbine 2 is a cross-flow wind turbine 2a, and includes a wind turbine body 21 and a first end cover 22 and a second end cover 23 disposed at both axial ends of the wind turbine body 21. The motor 3 is disposed on the side of the second end cover 23 away from the first end cover 22. The motor 3 is an external rotor motor and includes a stator 32 and a rotor 31 rotatably engaged with the stator 32. The rotor 31 includes a rotor magnetic ring 311 coaxially disposed with the wind turbine 2, and a mounting plate 313 located between the rotor magnetic ring 311 and the second end cover 23. The mounting plate 313 is stacked with the second end cover 23 and is respectively connected to the rotor magnetic ring 311 and the second end cover 23.

[0059] Motor 3 is the driving component, which drives the cross-flow fan wheel 2a to rotate along its axis, thereby generating airflow. Motor 3 is an external rotor motor. Compared with traditional internal rotor motors, the axial dimension of motor 3 in this embodiment of the invention is shorter, which facilitates the assembly and use of the fan 20.

[0060] The motor 3 includes a rotor 31 and a stator 32. When the motor 3 is energized, the magnetic field generated by the stator 32 and the magnetic field generated by the rotor magnetic ring 311 interact, so that the rotor 31 can rotate relative to the stator 32. The rotor magnetic ring 311 is connected to the second end cover 23 of the impeller 2. When the rotor 31 rotates relative to the stator 32, it can drive the impeller 2 to rotate.

[0061] The rotor 31 also includes a mounting plate 313, which is disposed between the rotor magnetic ring 311 and the impeller 2. The mounting plate 313 is connected to the rotor magnetic ring 311 and the second end cover 23 respectively. The mounting plate 313 connects the rotor magnetic ring 311 and the impeller 2, thereby causing the rotor 31 to drive the impeller 2 to rotate.

[0062] By setting the mounting plate 313 to connect the rotor magnetic ring 311 to the second end cover 23, the design of the mounting plate 313 mainly considers the cooperation with the rotor magnetic ring 311, without considering the cooperation with the impeller 2. Similarly, the design of the second end cover 23 mainly considers the cooperation with the impeller 2, without considering the cooperation with the rotor magnetic ring 311. Thus, the rotor magnetic ring 311 of this utility model embodiment can be adapted to impellers 2 of various shapes and specifications through the mounting plate 313, thereby realizing the standardized production of rotor 31 and helping to reduce the manufacturing cost of motor 3.

[0063] Furthermore, the mounting plate 313 and the second end cover 23 are stacked together, and the mounting plate 313 and the second end cover 23 are in the same thickness direction and are set close together, which can save space and thus shorten the axial distance between the impeller 2 and the motor 3.

[0064] According to the embodiment of the present invention, the fan 20 connects the rotor magnetic ring 311 to the second end cover 23 by setting an mounting plate 313. The motor 3 can be adapted to various shapes and specifications of impellers 2 through the mounting plate 313, thereby reducing the axial length of the fan 20 and enabling standardized production of the rotor magnetic ring 311, which helps to reduce the manufacturing cost of the motor 3. Furthermore, since the mounting plate 313 and the second end cover 23 are stacked, the rotor magnetic ring 311 is coaxially arranged with the impeller 2 and together with the second end cover 23 clamps the mounting plate 313, thereby shortening the axial distance between the impeller 2 and the motor 3, and thus reducing the axial length of the fan 20.

[0065] In some embodiments of this utility model, the second end cap 23 and the mounting plate 313 are integrally connected.

[0066] The second end cover 23 and the mounting plate 313 are integrated, which can improve the connection stability between the second end cover 23 and the mounting plate 313 and improve the overall integrity of the impeller 2.

[0067] It is worth noting that the integrated connection between the second end cap 23 and the mounting plate 313 refers to a non-detachable connection. For example, metal can be riveted or welded; plastic can be injection molded, bonded, or ultrasonically welded.

[0068] In some other embodiments of this utility model, the second end cap 23 is detachably connected to the mounting plate 313. The mounting plate 313 can be replaced and connected to second end caps 23 of different specifications and shapes, allowing for repeated use.

[0069] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the second end cap 23 and the mounting plate 313 are engaged by a plug-in structure 24 that is inserted along the axial direction of the impeller 2.

[0070] It is understandable that the rotor 31 drives the wind turbine 2 to rotate together, so it is necessary to ensure the coaxiality of the rotor 31 and the wind turbine 2. The mounting plate 313 connected between the rotor 31 and the second end cover 23 must also ensure the concentricity with the second end cover 23, thereby improving the rotational stability of the wind turbine 2.

[0071] The second end cap 23 and the mounting plate 313 are connected by a plug-in structure 24. The plug-in structure 24 can play a positioning role, ensuring the concentricity of the second end cap 23 and the mounting plate 313, and improving the assembly efficiency and finished product qualification rate of the mounting plate 313 and the second end cap 23.

[0072] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the plug-in structure 24 includes a hollow shaft 241 and a central hole 242. The hollow shaft 241 is located at the center of the mounting plate 313, and the central hole 242 passes through the second end cover 23. The hollow shaft 241 is plugged into the central hole 242. A rotating shaft 312 is installed inside the hollow shaft 241, and a bearing 37 is installed inside the stator 32. The rotating shaft 312 and the bearing 37 are rotatably engaged.

[0073] The mounting plate 313 has a hollow shaft 241 protruding towards the wind turbine 2 at its center, and the second end cover 23 has a central hole 242 at its center. The hollow shaft 241 is inserted into the central hole 242 to connect the mounting plate 313 and the second end cover 23.

[0074] The rotor 31 is inserted into the bearing 37 in the shaft hole of the stator 32 via the rotating shaft 312. The rotor 31 is connected to the impeller 2, so that the impeller 2 and the stator 32 can be rotatably engaged. The rotating shaft 312 is set in the shaft hole defined by the hollow shaft 241. By setting the hollow shaft 241 at the center of the mounting plate 313, it can not only be inserted and engaged with the second end cover 23, but also meet the installation of the rotating shaft 312, reducing the structural complexity of the mounting plate 313.

[0075] In some embodiments of the present invention, Figure 5 As shown, the rotating shaft 37 is a sliding bearing 37a, and the rotating shaft 312 is inserted into the sliding bearing 37a and has a clearance fit with the sliding bearing 37a.

[0076] Compared to setting a rolling bearing 37, the assembly of the rotating shaft 312 and the sliding bearing 37a is faster and easier, which helps to improve assembly efficiency, increase production efficiency, and reduce manufacturing costs.

[0077] In some embodiments of the present invention, Figure 5 As shown, the sliding bearing 37a includes a ball bearing 371 and a bearing housing 372. The bearing housing 372 is sleeved outside the ball bearing 371, and the rotating shaft 312 passes through the ball bearing 371. The bearing housing 372 is made of vibration damping material.

[0078] The sliding bearing 37a includes a bearing housing 372 fixedly installed in the shaft hole and a ball bearing 371 that mates with the rotating shaft 312. The ball bearing 371 is disposed in the bearing housing 372, and the rotating shaft 312 passes through the ball bearing 371 and is clearance-fitted with the ball bearing 371.

[0079] The sliding bearing 37 comprises two parts, allowing the ball bearing 371 and the bearing housing 372 to be made of different materials, facilitating flexible design. The bearing housing 372 is made of vibration-damping material, which reduces vibration and wear. When the rotating shaft 312 is inserted into the sliding bearing 37a, the ball bearing 371 can be rotated to finely adjust its angle, enabling the rotating shaft 312 to be inserted quickly, improving assembly efficiency and reducing assembly difficulty.

[0080] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, the plug-in structure 24 includes an eccentric protrusion 243 and an eccentric slot 244. The eccentric protrusion 243 is provided on one of the mounting plate 313 and the second end cover 23 and is eccentrically set with respect to the axis of the impeller 2. The eccentric slot 244 is provided on the other of the mounting plate 313 and the second end cover 23 and is plugged into the eccentric protrusion 243.

[0081] By setting the eccentric protrusion 243 and the eccentric slot 244 for interlocking, not only can the mounting plate 313 and the second end cover 23 be positioned and connected, but the eccentric interlocking also facilitates the transmission of torque.

[0082] In some embodiments of the present invention, Figure 7 As shown, there are multiple eccentric protrusions 243, which are spaced apart along the circumference of the impeller 2.

[0083] By setting multiple eccentric protrusions 243, the connection stability can be improved, and the multiple eccentric protrusions 243 set eccentrically to the axis of the wind turbine 2 can reduce the occurrence of installation misalignment and improve the product qualification rate.

[0084] In some embodiments of the present invention, Figure 4 and Figure 7 As shown, the mounting plate 313 is integrally connected with the rotor magnetic ring 311.

[0085] By integrating the mounting plate 313 and the rotor magnetic ring 311, the overall integrity of the rotor 31 can be improved. Furthermore, the mounting plate 313 and the rotor magnetic ring 311 can be disassembled and replaced together to replace the connected second end cover 23, thereby adapting to wind turbines 2 of various shapes and specifications.

[0086] In some embodiments of the present invention, Figure 3 and Figure 4As shown, the mounting plate 313 has a mounting base 3131 protruding in a direction away from the cross-flow impeller 2a, and the mounting plate 313 is integrally connected to the rotor magnetic ring 311 through the mounting base 3131.

[0087] It is understandable that the rotor magnetic ring 311 is concentrically connected with the impeller 2 and the mounting plate 313 to improve the stability of the impeller 2 rotation. Therefore, by setting the fixing seat 3131, the installation position of the rotor magnetic ring 311 can be clearly given, which can improve the assembly efficiency of the impeller 2 and the finished product qualification rate.

[0088] Furthermore, by setting the fixing seat 3131 to connect with the rotor magnetic ring 311, it is also beneficial to improve the connection stability between the rotor magnetic ring 311 and the mounting plate 313. For example, the rotor magnetic ring 311 is welded to the mounting plate 313. By setting the fixing seat 3131 to protrude in a direction away from the cross-flow impeller 2a, the welding operation is facilitated, the assembly efficiency is improved, and the connection stability is enhanced.

[0089] In some embodiments of the present invention, Figure 4 As shown, the fixed base 3131 is formed as an annulus extending circumferentially along the rotor magnetic ring 311, and the rotor magnetic ring 311 is connected to the fixed base 3131 throughout the entire circumferential direction.

[0090] The mounting base 3131 is annular and is connected to the entire end face of the rotor magnetic ring 311 facing the mounting plate 313, which can increase the contact area and help improve the connection stability between the rotor magnetic ring 311 and the mounting plate 313.

[0091] In some embodiments of the present invention, Figure 4 As shown, the fixed base 3131 includes a base portion 31311, a seat end face 31311a on the side of the base portion 31311 facing the motor 3, and a rotor end face 311b on the side of the rotor magnetic ring 311 near the impeller body 21. The seat end face 31311a is connected to the rotor end face 311b.

[0092] The base portion 31311 is also an annular shape extending circumferentially along the rotor 31. The rotor magnetic ring 311 is connected to the entire base end face 31311a at least through the rotor end face 311b on the side close to the wind turbine body 21. The connection stability between the rotor magnetic ring 311 and the mounting plate 313 is relatively strong.

[0093] In other embodiments of this utility model, such as Figure 7 As shown, the fixed seat 3131 includes a base portion 31311 and a seat flange 31312. The seat flange 31312 protrudes from the base portion 31311 in a direction away from the wind turbine body 21. The seat flange 31312 is located in the outer peripheral region of the rotor magnetic ring 311 and is connected to the outer peripheral surface of the rotor magnetic ring 311.

[0094] The seat flange 31312 is formed as an annulus extending circumferentially along the rotor magnetic ring 311. The rotor magnetic ring 311 is connected to the seat flange 31312 at least through its outer peripheral surface. The connection stability between the rotor magnetic ring 311 and the fixed seat 3131 is relatively strong.

[0095] In other embodiments of this utility model, such as Figure 6 and Figure 7 As shown, the fixed base 3131 includes a base portion 31311 and a seat flange 31312. The seat flange 31312 protrudes from the base portion 31311 in a direction away from the wind turbine body 21. The side surface of the rotor magnetic ring 311 near the wind turbine body 21 is connected to the base portion 31311, and the outer peripheral surface of the rotor magnetic ring 311 is connected to the seat flange 31312.

[0096] The side surface of the rotor magnetic ring 311 closest to the wind turbine body 21 and the outer peripheral surface of the rotor magnetic ring 311 are both in contact with the fixed base 3131, which can further improve the connection stability between the rotor magnetic ring 311 and the fixed base 3131.

[0097] In some embodiments of the present invention, Figure 8 As shown, at least one of the rotor magnetic ring 311 and the fixed seat 3131 has a positioning structure 311a that cooperates with the other to limit the relative movement of the rotor magnetic ring 311 and the fixed seat 3131 along the radial direction of the rotor magnetic ring 311.

[0098] By setting the positioning structure 311a to position the rotor magnetic ring 311 and the fixed base 3131, the assembly efficiency and connection accuracy can be improved. Furthermore, the rotor magnetic ring 311 can transmit torque through the positioning structure 311a, thereby improving the working reliability of the wind turbine 2.

[0099] In some embodiments of the present invention, Figure 8 and Figure 9 As shown, the positioning structure 311a includes a protrusion 3111 disposed on the rotor magnetic ring 311 and extending toward the direction close to the wind turbine body 21, and the protrusion 3111 is embedded in the fixing seat 3131.

[0100] The mounting base 3131 is formed as an annular ring extending circumferentially along the rotor magnetic ring 311. The protrusion 3111 on the rotor magnetic ring 311 is embedded into the mounting base 3131 from the end face of the mounting base 3131 facing the rotor magnetic ring 311, so that the rotor magnetic ring 311 and the mounting base 3131 are embedded and connected, thereby improving the connection stability between the rotor magnetic ring 311 and the mounting plate 313.

[0101] In other embodiments of this utility model, such as Figure 10 and Figure 11As shown, the positioning structure 311a includes a protrusion 3111 disposed on the rotor magnetic ring 311 and extending toward the direction close to the wind turbine body 21. The protrusion 3111 extends to the side of the fixing seat 3131 near the central axis of the rotor magnetic ring 311.

[0102] The mounting base 3131 is formed as an annulus extending circumferentially along the rotor magnetic ring 311. The protrusion 3111 on the rotor magnetic ring 311 extends to the radial inner side of the mounting base 3131 so that the protrusion 3111 connects with the inner circumferential surface of the mounting base 3131, thereby improving the connection stability between the rotor magnetic ring 311 and the mounting plate 313.

[0103] In some other embodiments of this utility model, such as Figure 12 and Figure 13 As shown, the positioning structure 311a includes a protrusion 3111 provided on the rotor magnetic ring 311 and extending toward the direction close to the wind turbine body 21. The protrusion 3111 extends to the side of the fixed seat 3131 away from the central axis of the rotor magnetic ring 311.

[0104] The mounting base 3131 is formed as an annulus extending circumferentially along the rotor magnetic ring 311. The protrusion 3111 on the rotor magnetic ring 311 extends to the radial outer side of the mounting base 3131 so that the protrusion 3111 connects with the outer peripheral surface of the mounting base 3131, thereby improving the connection stability between the rotor magnetic ring 311 and the mounting plate 313.

[0105] In some embodiments of the present invention, Figures 8-13 As shown, the protrusion 3111 is annular. By setting the protrusion 3111 to be annular, the contact area between the protrusion 3111 and the fixed base 3131 can be increased, thereby improving the connection stability between the rotor magnetic ring 311 and the fixed base 3131.

[0106] In other embodiments of this utility model, such as Figures 14-17 As shown, there are multiple protrusions 3111, which are spaced apart circumferentially along the rotor magnetic ring 311. By setting multiple protrusions 3111, the connection stability between the rotor magnetic ring 311 and the fixed base 3131 can be improved, and the rotor magnetic ring 311 can transmit torque through multiple protrusions 3111, thereby improving the working reliability of the wind turbine 2.

[0107] In Example 1, as Figure 8 and Figure 9 As shown, the rotor magnetic ring 311 is provided with an annular protrusion 3111, which is located at the radial center of the end face of the rotor magnetic ring 311 near the impeller body 21. Optionally, the protrusion 3111 is embedded in the fixing seat 3131.

[0108] In Example 2, as Figure 10 and Figure 11As shown, the rotor magnetic ring 311 is provided with an annular protrusion 3111. The protrusion 3111 is located radially inward on the end face of the rotor magnetic ring 311 near the impeller body 21, and the inner circumferential surface of the protrusion 3111 and the inner circumferential surface of the rotor magnetic ring 311 are on the same plane. Optionally, the protrusion 3111 extends to the side of the fixed seat 3131 near the central axis of the rotor magnetic ring 311.

[0109] In Example 3, as Figure 12 and Figure 13 As shown, the rotor magnetic ring 311 is provided with an annular protrusion 3111. The protrusion 3111 is located radially outward on the side end face of the rotor magnetic ring 311 near the impeller body 21, and the outer peripheral surface of the protrusion 3111 and the outer peripheral surface of the rotor 31 are on the same plane. Optionally, the protrusion 3111 extends to the side of the fixed seat 3131 away from the central axis of the rotor magnetic ring 311.

[0110] In Example 4, as Figure 14 and Figure 15 As shown, the rotor magnetic ring 311 is provided with a plurality of columnar protrusions 3111, which are spaced apart along the circumference of the rotor magnetic ring 311. Optionally, the protrusions 3111 are embedded in the fixing seat 3131.

[0111] In Example 5, as Figure 16 and Figure 17 As shown, the rotor magnetic ring 311 is provided with a plurality of rectangular protrusions 3111, which are spaced apart circumferentially along the rotor magnetic ring 311. Optionally, the protrusions 3111 are embedded in the fixing seat 3131.

[0112] In some embodiments of this utility model, the second end cap 23 is integrally connected with the wind turbine body 21.

[0113] By integrating the second end cap 23 with the wind turbine body 21, the connection stability of the rotor 31, the second end cap 23 and the wind turbine body 21 can be improved, which is beneficial to improving the structural stability of the wind turbine 2.

[0114] Optionally, the second end cap 23 is welded to the impeller body 21.

[0115] In some embodiments of the present invention, Figure 2 As shown, the second end cover 23 has a plurality of insertion holes 231, which are spaced apart along the circumference of the impeller body 21. The impeller body 21 includes a plurality of blades 211, which are inserted into and engaged with the plurality of insertion holes 231. The impeller body 21 is integrally connected to the second end cover 23 through the blades 211.

[0116] The wind turbine body 21 includes multiple wind blades 211 arranged circumferentially. When the wind turbine 2 rotates, the wind blades 211 can drive the airflow. The wind blades 211 located near the second end cover 23 are inserted and matched with the insertion holes 231 on the second end cover 23, which can improve the structural stability of the wind blades 211 and reduce the airflow noise generated when the wind turbine 2 rotates.

[0117] After multiple blades 211 are inserted and positioned into multiple insertion holes 231, they are then integrated with the second end cover 23 to fix the impeller body 21 and the second end cover 23 together.

[0118] In some embodiments of the present invention, Figure 2 As shown, the wind turbine body 21 also includes multiple intermediate sections, which are spaced apart along the axial direction of the wind turbine 2, and multiple wind blades 211 are sandwiched between two adjacent intermediate sections.

[0119] In some embodiments of this utility model, multiple middle sections and multiple fan blades 211 are integrally injection molded.

[0120] In some embodiments of the present invention, Figure 1 As shown, the rotor 31 also includes a rotor retaining ring 314, which is located on the side of the mounting plate 313 away from the wind turbine body 21 and is connected to the mounting plate 313. The rotor retaining ring 314 surrounds the rotor magnetic ring 311 around the rotor magnetic ring 311 in the circumferential direction.

[0121] The rotor retaining ring 314 is located on the outside of the rotor magnetic ring 311. The rotor retaining ring 314 protects the inner rotor magnetic ring 311 and improves the situation where the rotor magnetic ring 311 is damaged during transportation and movement.

[0122] In some embodiments of the present invention, Figure 2 and Figure 4 As shown, the rotor retaining ring 314 is integrally connected to the mounting plate 313. This improves the structural stability of the rotor retaining ring 314, better protects the inner rotor magnetic ring 311, and reduces the manufacturing cost of separately manufacturing the rotor retaining ring 314.

[0123] In some embodiments of this utility model, the rotor retaining ring 314, which is integrally connected with the mounting plate 313, is circular. The circular rotor retaining ring 314 occupies less space and is easy to dynamically balance, which is beneficial to the rotation of the impeller 2.

[0124] In some other embodiments of this utility model, the rotor retaining ring 314 is detachably connected to the mounting plate 313.

[0125] During transportation, the rotor retaining ring 314 is connected to the mounting plate 313 to protect the inner rotor magnetic ring 311. When assembling the impeller 2, the rotor retaining ring 314 can be removed from the mounting plate 313 to reduce the space occupied.

[0126] The air conditioner 100 of the second aspect of this utility model is described below with reference to the accompanying drawings.

[0127] According to the second aspect of the present invention, the air conditioner 100, such as Figure 18 and Figure 19 As shown, the air conditioner 100 includes: a chassis 10 and a fan 20. The fan 20 is the fan 20 of the first aspect of this utility model. The first end cover 22 is rotatably supported on the chassis 10 by the fan bearing 25. The motor 3 also includes a stator cover 34. The stator 32 is fixedly installed on the chassis 10 by the stator cover 34.

[0128] The stator 32 is fixedly mounted on the stator cover 34, which is fixedly connected to the chassis 10, thereby fixing the stator 32 and the chassis 10 relatively. Stable mounting of the stator 32 and the chassis 10 helps improve the coaxiality of the rotor 31 and the stator 32, enhances the reliability of their rotational engagement, reduces friction between the rotor 31 and the stator 32, reduces stator 32 oscillation, and improves the operational stability of the air conditioner 100.

[0129] According to the embodiment of the present invention, the air conditioner 100, by incorporating the fan 20 of the first aspect of the present invention, allows for the standardized production of the rotor 31 via a mounting plate 313 connected to the impeller 2, thereby reducing the manufacturing cost of the motor 3. The stator 32 is fixedly connected to the chassis 10, which improves the coaxiality of the rotor 31 and stator 32, enhances the reliability of the rotational engagement between the rotor 31 and stator 32, reduces friction between the rotor 31 and stator 32, reduces stator 32 oscillation, and improves the operational stability of the air conditioner 100.

[0130] According to the second aspect of the present invention, the air conditioner 100, such as Figure 18 and Figure 19 As shown, the air conditioner 100 also includes a motor cover 50, which cooperates with the chassis 10 to surround the stator cover 34, and the motor cover 50 is fixed to the stator cover 34 and / or the chassis 10 by fasteners 40.

[0131] After the stator cover 34 secures the stator 32 to the chassis 10, the motor cover 50 is installed outside the stator cover 34, further enhancing the installation stability of the stator cover 34 and the chassis 10. Furthermore, the motor cover 50 also improves the operational safety of the stator 32, protecting the internal stator 32 and preventing external contaminants from directly contacting it. It is understandable that since the motor 3 is a live component, the motor cover 50 surrounding the stator cover 34 also prevents users from directly contacting the internal stator 32, thus improving operational safety.

[0132] In some embodiments of this utility model, a bearing chamber is provided on the chassis 10 on the axial side of the air duct cavity away from the motor 3. The fan bearing 25 is connected to the first end of the impeller 2. The fan bearing 25 is rotatably arranged in the bearing chamber. The impeller 2 can be rotatably arranged in the air duct cavity through the fan bearing 25 at the first end.

[0133] When assembling the fan 20 onto the chassis 10, firstly, the stator 32 is fixedly installed inside the stator cover 34; then, the stator cover 34 is fixedly installed onto the chassis 10; next, the rotating shaft 312 on the mounting plate 313 of the impeller 2 is fitted with the stator 32, and the rotating shaft 312 is inserted into the shaft hole of the stator 32. The first end cover 22 of the impeller 2 is rotatably mounted onto the chassis 10 via the fan bearing 25. Finally, the motor cover 50 is installed onto the chassis 10.

[0134] In some embodiments of this utility model, as shown in the figure, the air conditioner 100 is a wall-mounted air conditioner, and the axis of the cross-flow fan 2a is in the left-right direction.

[0135] Air conditioner 100 is a wall-mounted air conditioner, which is convenient for use in environments with limited space. By setting the motor 3 mentioned above, the axial dimension of motor 3 can be shortened, which can reduce the space occupied by the wall-mounted air conditioner in the left and right directions, which helps to reduce the size of air conditioner 100 and facilitates the placement and use of air conditioner 100.

[0136] 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.

[0137] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0138] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0139] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0140] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations 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 any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0141] 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, characterized in that, include: The wind turbine is a cross-flow wind turbine, and includes a wind turbine body and a first end cover and a second end cover disposed at both axial ends of the wind turbine body; The motor is located on the side of the second end cover away from the first end cover. The motor is an external rotor motor and includes a stator and a rotor that rotates with the stator. The rotor includes a rotor magnetic ring coaxially arranged with the wind turbine and a mounting plate located between the rotor magnetic ring and the second end cover. The mounting plate is stacked with the second end cover and is connected to the rotor magnetic ring and the second end cover respectively.

2. The fan according to claim 1, characterized in that, The second end cap and the mounting plate are integrally connected.

3. The fan according to claim 1, characterized in that, The second end cap is detachably connected to the mounting plate.

4. The fan according to any one of claims 1-3, characterized in that, The second end cap and the mounting plate are engaged by a plug-in structure that is inserted along the axial direction of the impeller.

5. The fan according to claim 4, characterized in that, The insertion structure includes a hollow shaft and a central hole. The hollow shaft is located at the center of the mounting plate, and the central hole penetrates the second end cover. The hollow shaft is inserted into the central hole, and a rotating shaft passes through the hollow shaft. A bearing is provided inside the stator, and the rotating shaft and the bearing are rotatably engaged.

6. The fan according to claim 5, characterized in that, The bearing is a sliding bearing, and the rotating shaft is inserted into the sliding bearing with a clearance fit.

7. The fan according to claim 4, characterized in that, The plug-in structure includes an eccentric protrusion and an eccentric slot. The eccentric protrusion is provided on one of the mounting plate and the second end cover and is eccentrically positioned to the axis of the wind turbine. The eccentric slot is provided on the other of the mounting plate and the second end cover and is plugged into the eccentric protrusion.

8. The fan according to claim 7, characterized in that, The eccentric protrusions are multiple and spaced apart along the circumference of the wind turbine.

9. The fan according to claim 1, characterized in that, The mounting plate is integrally connected to the rotor magnetic ring.

10. The fan according to claim 9, characterized in that, The mounting plate has a mounting base protruding in a direction away from the cross-flow impeller, and the mounting plate is integrally connected to the rotor magnetic ring through the mounting base.

11. The fan according to claim 10, characterized in that, The mounting base is formed as a ring extending circumferentially along the rotor magnetic ring, and the rotor magnetic ring is connected to the mounting base throughout the entire circumferential direction.

12. The fan according to claim 11, characterized in that, The fixed base includes a base portion, a seat end face of the base portion facing the motor, and a rotor end face of the rotor magnetic ring near the wind turbine body. The seat end face is connected to the rotor end face. And / or, the mounting base includes a base portion and a mounting flange, the mounting flange protruding from the base portion in a direction away from the wind turbine body, the mounting flange being located in the outer peripheral region of the rotor magnetic ring and connected to the outer peripheral surface of the rotor magnetic ring.

13. The fan according to claim 10, characterized in that, At least one of the rotor magnetic ring and the fixed base has a positioning structure that mates with the other to limit the relative movement of the rotor magnetic ring and the fixed base along the radial direction of the rotor magnetic ring.

14. The fan according to claim 13, characterized in that, The positioning structure includes a protrusion disposed on the rotor magnetic ring and extending toward the direction close to the wind turbine body, wherein the protrusion is embedded in the fixing seat; or, the protrusion extends to the side of the fixing seat close to the central axis of the rotor magnetic ring; or, the protrusion extends to the side of the fixing seat away from the central axis of the rotor magnetic ring.

15. The fan according to claim 14, characterized in that, The protrusion is annular, or there are multiple protrusions spaced apart circumferentially along the rotor magnetic ring.

16. The fan according to claim 1, characterized in that, The second end cap is integrally connected to the wind turbine body.

17. The fan according to claim 16, characterized in that, The second end cover has multiple insertion holes spaced apart around the circumference of the wind turbine body. The wind turbine body includes multiple blades, which are inserted into the multiple insertion holes. The wind turbine body is integrally connected to the second end cover through the blades.

18. The fan according to claim 1, characterized in that, The rotor also includes a rotor retaining ring, which is located on the side of the mounting plate away from the wind turbine body and connected to the mounting plate. The rotor retaining ring surrounds the rotor magnetic ring circumferentially.

19. The fan according to claim 18, characterized in that, The rotor retaining ring is integrally connected to the mounting plate, or the rotor retaining ring is detachably connected to the mounting plate.

20. An air conditioner, characterized in that, include: Chassis; The fan is a fan according to any one of claims 1-19, wherein the first end cover is rotatably supported on the chassis by a fan bearing, and the motor further includes a stator cover, wherein the stator is fixedly installed on the chassis by the stator cover.

21. The air conditioner according to claim 20, characterized in that, The air conditioner is a wall-mounted air conditioner, and the axis of the cross-flow fan is in the left-right direction.

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