Air conditioner

Abstract

The utility model discloses an air conditioner which comprises a chassis and a fan, the fan comprises a wind wheel and a motor, the wind wheel is a cross-flow wind wheel, two axial ends of the wind wheel are a first end and a second end respectively, the first end is rotatably supported on the chassis, the motor is an external rotor motor and comprises a rotor and a stator which are rotatably matched, and the rotor is fixedly connected with the second end; the motor further comprises a stator cover for fixedly installing the stator, the stator cover is provided with two first fixing structures and a first positioning structure located between the two first fixing structures, and the chassis is provided with two second fixing structures and a second positioning structure located between the two second fixing structures. The second fixing structure and the first fixing structure are correspondingly arranged and fixedly connected, and the second positioning structure and the first positioning structure are correspondingly arranged and matched in a positioning mode. Through the cooperation of the stator cover and the chassis, the coaxiality of the wind wheel and the motor is improved, the abrasion interference between a rotating part and a static part is reduced, and the vibration noise during the operation of the fan is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning equipment field especially air conditioner. BACKGROUND

[0002] Some air conditioners in the related art adopt the fan including the cross-flow fan wheel and the driving motor, the driving motor is arranged at one end of the axial direction of the cross-flow fan wheel, the driving motor extends the rotating shaft towards the direction of the cross-flow fan wheel, the end of the rotating shaft is connected with the cross-flow fan wheel to drive the cross-flow fan wheel to rotate, the overall axial length of this kind of fan is larger, so that the size of the air conditioner in the axial direction of the fan is larger, and more space is occupied, and the fan generates vibration noise when running, and there is room for improvement. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the prior art at least, for this purpose, the utility model provides an air conditioner, which can improve the vibration noise generated when the motor runs.

[0004] The air conditioner according to the utility model embodiment comprises a bottom disc, a fan, the fan comprises a fan wheel and a motor, the fan wheel is a cross-flow fan wheel, and the axial direction of the fan wheel has a first end and a second end respectively, the first end is rotatably supported on the bottom disc, the motor is coaxially arranged with the fan wheel, the motor is an outer rotor motor and comprises a rotor and a stator, the rotor is fixedly connected with the second end and rotationally matched with the stator, wherein the motor further comprises a stator cover, the stator is fixedly installed on the stator cover, the stator cover has two first fixing structures and a first positioning structure located between the two first fixing structures, the bottom disc has two second fixing structures and a second positioning structure located between the two second fixing structures, the second fixing structure is correspondingly arranged with and fixedly connected with the first fixing structure, and the second positioning structure is correspondingly arranged with and positioned with the first positioning structure.

[0005] The air conditioner according to the utility model embodiment adopts the outer rotor motor and fixes the rotor on the fan wheel, which is conducive to reducing the size of the air conditioner in the axial direction of the fan, and through the above-mentioned three matching between the stator cover and the bottom disc (i.e. the stator cover is positioned and matched with the second positioning structure on the bottom disc through the first positioning structure in the middle, and the first fixing structure on both sides of the first positioning structure is connected with the two second fixing structures on the bottom disc), the installation stability and reliability of the stator cover can be improved, so that the axial position of the motor after installation meets the design requirements, thereby improving the coaxiality of the fan wheel and the motor, reducing the wear and tear and interference between the rotating part and the stationary part, reducing the vibration noise when the fan runs, and prolonging the service life of the fan.

[0006] In some embodiments, the first positioning structure is formed as a protruding plug facing away from the stator, and the second positioning structure is formed as a slot, the plug being inserted into the slot.

[0007] In some embodiments, the plug is provided with a first damping sleeve, and the plug and the first damping sleeve are inserted into the slot together.

[0008] In some embodiments, the stator cover comprises an annular ring circumferentially surrounding the stator, the plug protrudes from the annular ring facing away from the stator, and a side surface of the portion of the bottom plate between the second fixing structure and the second positioning structure facing the stator cover is shaped to match the annular ring.

[0009] In some embodiments, the stator cover comprises an annular ring circumferentially surrounding the stator, the first fixing structure is a mounting ear protruding from the annular ring facing away from the stator, and the mounting ear is fixedly connected to the second fixing structure by a fastener passing through the mounting ear.

[0010] In some embodiments, a through hole is formed in the mounting ear, the through hole is perpendicular to the axial direction of the stator, and the fastener passes through the through hole to be fixedly connected to the second fixing structure.

[0011] In some embodiments, a through hole is formed in the mounting ear, a second damping sleeve is arranged in the through hole, the second fixing structure comprises a threaded column, the threaded column passes through the second damping sleeve, and the fastener is a screw with a threaded shank passing through the threaded column to be threadedly connected to the threaded column.

[0012] In some embodiments, the stator cover comprises an annular ring circumferentially surrounding the stator, the stator comprises a stator body and a mounting portion, the mounting portion is located at an axial end of the stator body away from the impeller, and comprises a plurality of protrusions protruding from an outer circumferential surface of the stator body and spaced apart in the circumferential direction of the stator, a third damping sleeve is arranged outside each of the protrusions, and the stator is in abutting engagement with the annular ring in the radial direction through the third damping sleeve.

[0013] In some embodiments, the stator cover further comprises a cover end cap, one end of the annular ring close to the impeller has a flange, the cover end cap is connected to the other end of the annular ring away from the impeller, and the protrusions are clamped between the flange and the cover end cap in the axial direction of the stator through the third damping sleeve.

[0014] In some embodiments, the stator comprises a stator body having a shaft hole in the center of the stator body, a sliding bearing is arranged in the shaft hole, the rotor comprises a rotor ring and a rotating shaft arranged in the center of the rotor ring, the stator body extends into the rotor ring, the rotating shaft extends into the sliding bearing and is in clearance fit with the sliding bearing.

[0015] In some embodiments, the sliding bearing comprises a ball bearing and a bearing seat, the bearing seat is sleeved outside the ball bearing, the rotating shaft is arranged in the ball bearing, and the bearing seat is a damping material piece.

[0016] In some embodiments, the air conditioner further comprises a motor gland, the motor gland is in fit with the bottom plate to enclose the stator cover, and the motor gland is fixed to the stator cover and / or the bottom plate.

[0017] In some embodiments, the second fixing structure is connected with the first fixing structure by a fastener, the motor gland has two third fixing structures, the third fixing structures are arranged correspondingly with the first fixing structure, the fastener is a screw, a threaded rod portion of the screw penetrates through the third fixing structures and the first fixing structure, and is in threaded connection with the second fixing structure, and a head portion of the screw is abutted against a side of the motor gland away from the bottom plate.

[0018] In some embodiments, the motor gland has a third positioning structure, the bottom plate is provided with a fourth positioning structure, the fourth positioning structure is arranged correspondingly with the third positioning structure and is in positioning fit.

[0019] In some embodiments, the third positioning structure comprises a positioning protrusion, the fourth positioning structure comprises a positioning slot hole matched with the positioning protrusion; and / or, the third positioning structure comprises an elastic buckle, and the fourth positioning structure comprises a positioning clamping groove matched with the elastic buckle.

[0020] In some embodiments, the motor gland comprises a cover body portion and a side plate portion, the side plate portion is located at a side of the cover body portion away from the impeller, the third fixing structures are arranged on the cover body portion, and the third positioning structures are arranged on the side plate portion.

[0021] In some embodiments, the side plate portion is respectively provided with the third positioning structures near two ends of the two third fixing structures.

[0022] In some embodiments, the air conditioner further comprises a volute, the volute is in fit with the bottom plate to jointly define an air duct cavity, the impeller is in fit in the air duct cavity, and the motor is located outside the air duct cavity.

[0023] In some embodiments, the air conditioner further includes a motor cover that cooperates with the chassis to surround the motor and seals the end of the air duct cavity near the motor.

[0024] In some embodiments, the rotor includes a rotor ring and a rotor retainer ring, the stator includes a stator body extending into the rotor ring, the rotor retainer ring being disposed around the rotor ring circumferentially along the rotor, the rotor retainer ring being fixedly connected to the impeller, and having a gap between the rotor retainer ring and the stator cover along the axial direction of the motor.

[0025] In some embodiments, the wind turbine 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 end of the wind turbine with the first end cover is designated as the first end, and the end of the wind turbine with the second end cover is designated as the second end. The rotor ring and the rotor retaining ring are respectively fixedly connected to the second end cover. Alternatively, the motor further includes a rotor end plate disposed between the rotor ring and the second end cover. Both the rotor ring and the rotor retaining ring are fixedly connected to the rotor end plate, and the rotor end plate is fixedly connected to the second end cover.

[0026] 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.

[0027] 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

[0028] Figure 1 This is a partial structural schematic diagram of an air conditioner according to an embodiment of the present invention;

[0029] Figure 2 This is an exploded view of a portion of the structure of an air conditioner according to an embodiment of the present invention;

[0030] Figure 3 This is an exploded view of a portion of the structure of a fan according to an embodiment of the present invention;

[0031] Figure 4 It is based on Figure 2 A magnified view of region A in the example shown;

[0032] Figure 5 It is based on Figure 2 A magnified view of region B in the example shown;

[0033] Figure 6 This is an exploded view of the stator and stator cover according to an embodiment of the present invention;

[0034] Figure 7 is a structural schematic view of the air conditioner according to another embodiment of the present application from another angle;

[0035] Figure 8 is a matching schematic view of the stator and the stator cover according to an embodiment of the present application;

[0036] Figure 9 is a partial sectional view of the fan according to an embodiment of the present application;

[0037] Figure 10 is a structural schematic view of the motor gland according to an embodiment of the present application;

[0038] Figure 11 is a partial structural exploded view of the fan according to an embodiment of the present application; Figure 1

[0039] Figure 12 is a partial structural exploded view of the fan according to another embodiment of the present application.

[0040] Figure 13 is a partial structural exploded view of the fan according to another embodiment of the present application.

[0041] Reference signs:

[0042] Air conditioner 100;

[0043] Chassis 10; air duct cavity 10a; second fixing structure 11; threaded column 111; second positioning structure 12; insertion slot 121; fourth positioning structure 13; positioning slot hole 131; positioning clamping groove 132;

[0044] Fan 20;

[0045] Fan wheel 2; cross-flow fan wheel 2a; first end 2b; second end 2c; fan wheel body 21; first end cover 22; second end cover 23; fan wheel bearing 24;

[0046] Motor 3;

[0047] Rotor 31; rotor ring 311; rotating shaft 312; rotor end plate 313; rotor retainer ring 314;

[0048] Stator 32; stator body 321; mounting portion 322; protrusion 3222; shaft hole 323;

[0049] Stator cover 33; first fixing structure 331; mounting lug 3311; perforation 33111; first positioning structure 332; insertion pin 3321; annular ring 333; flange 3331; cover end cap 334;

[0050] First damping sleeve 34; second damping sleeve 35; third damping sleeve 36;​

[0051] slide bearing 37; ball bearing 371; bearing seat 372;

[0052] fastener 40; screw 41;

[0053] motor gland 50; third fixing structure 51; third positioning structure 52; positioning protrusion 521; elastic buckle 522; cover body 53; side plate 54. DETAILED DESCRIPTION

[0054] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0055] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and settings of the particular examples in the following are described in some detail. Of course, they are merely examples and are intended to teach the present application. Also, the present application can use, in different examples, the same reference numbers and / or letters for the same or similar elements. Such a repetition is for the purpose of simplicity and clarity and should not be regarded as a limitation with respect to the scope of the present application. Furthermore, the present application can be implemented in a different example using other processes and / or other materials.

[0056] The air conditioner 100 of the embodiments of the present application is described below with reference to the drawings.

[0057] According to the air conditioner 100 of the embodiments of the present application, as shown in Figures 1-3 the air conditioner 100 comprises a base plate 10 and a fan 20, the fan 20 comprises a fan wheel 2 and a motor 3, the fan wheel 2 is a cross-flow fan wheel 2a and has a first end 2b and a second end 2c at two axial ends respectively, the first end 2b is rotatably supported on the base plate 10, the motor 3 is coaxially arranged with the fan wheel 2, the motor 3 is an outer rotor motor and comprises a rotor 31 and a stator 32, the rotor 31 is fixedly connected with the second end 2c and rotationally matched with the stator 32; wherein the motor 3 further comprises a stator cover 33, the stator 32 is fixedly installed on the stator cover 33, the stator cover 33 has two first fixing structures 331 and a first positioning structure 332 located between the two first fixing structures 331, the base plate 10 has two second fixing structures 11 and a second positioning structure 12 located between the two second fixing structures 11, the second fixing structures 11 are correspondingly arranged with and fixedly connected with the first fixing structures 331, and the second positioning structure 12 is correspondingly arranged with and positioned with the first positioning structure 332.

[0058] The base 10 supports the fan 20, the wind wheel 2 is a cross-flow wind wheel 2a, a first end 2b of the wind wheel 2 is rotatably supported on the base 10, and a second end 2c of the wind wheel 2 cooperates with the motor 3. The motor 3 is a driving member that drives the cross-flow wind wheel 2a to rotate along an axis, thereby generating a flowing air current.

[0059] Exemplarily, the rotor 31 includes a rotor ring 311, an axial end of the rotor ring 311 is directly or indirectly fixedly connected to an axial end of the wind wheel 2, and the stator 32 includes a stator body 321, at least a portion of the stator body 321 extends into the rotor ring 311, so that an axial cooperation gap between the wind wheel 2 and the motor 3 can be omitted, the cooperation compactness of the wind wheel 2 and the motor 3 is improved, the axial dimension of the fan 20 is reduced, thereby reducing the dimension of the air conditioner 100 in the axial direction of the fan 20, and saving the occupied space of the air conditioner 100. The rotor ring 311 can be a ring-shaped magnetic ring, and the stator body 321 can include a stator core and a stator winding.

[0060] That is, the motor 3 is an outer rotor motor, compared with a traditional inner rotor motor, a gap between the motor 3 and the wind wheel 2 can be omitted, and the axial dimension of the motor 3 after cooperating with the wind wheel 2 is relatively short, which is conducive to reducing the volume of the air conditioner 100. The motor 3 includes the rotor 31 and the stator 32, the rotor 31 is fixedly connected to the second end 2c of the wind wheel 2, and the stator 32 is fixedly connected to the base 10. When energized, the rotor 31 and the stator 32 rotate relative to each other, thereby driving the wind wheel 2 connected to the rotor 31 to rotate relative to the base 10.

[0061] The motor 3 further includes a stator cover 33, the stator 32 is fixedly installed on the stator cover 33, and the stator cover 33 is fixedly connected to the base 10, thereby relatively fixing the stator 32 to the base 10.

[0062] The stator cover 33 has a first positioning structure 332, the base 10 has a second positioning structure 12, the stator cover 33 is positioned and cooperated with the second positioning structure 12 through the first positioning structure 332, the stator cover 33 further has a first fixing structure 331, the base 10 has a second fixing structure 11, and the stator cover 33 is fixedly connected to the second fixing structure 11 through the first fixing structure 331. The stator cover 33 is first pre-positioned to the base 10 and then fixedly installed, which can improve the assembly efficiency and assembly accuracy.

[0063] The stator cover 33 has two first fixing structures 331, and the bottom disc 10 has two second fixing structures 11 correspondingly, the stator cover 33 is fixedly connected with the two first fixing structures 331 and the two second fixing structures 11, so that the connection stability of the stator cover 33 and the bottom disc 10 is improved.

[0064] The stator cover 33 is positioned and matched with the second positioning structure 12 through the middle first positioning structure 332, and is connected with the two second fixing structures 11 through the two first fixing structures 331 on both sides, so that the stator cover 33 is stably matched with the bottom disc 10, the stator 32 fixedly installed in the stator cover 33 is stably installed, and after the stator 32 and the bottom disc 10 are stably installed, the coaxiality of the rotor 31 and the stator 32 is improved, the coaxiality of the motor 3 and the wind wheel 2 is improved, the reliability of the rotation cooperation of the rotor 31 and the stator 32 is improved, the friction between the rotor 31 and the stator 32 is reduced, the vibration of the stator 32 is reduced, the vibration noise generated by the relative rotation of the rotor and the stator is reduced, and the working stability of the air conditioner 100 is improved.

[0065] According to the air conditioner 100 in the embodiment of the utility model, the outer rotor motor is adopted, and the rotor 31 is fixed to the wind wheel 2, so that the size of the air conditioner 100 in the axial direction of the fan 20 is reduced, and through the above-mentioned three matching between the stator cover 33 and the bottom disc 10 (that is, the stator cover 33 is positioned and matched with the second positioning structure 12 on the bottom disc 10 through the middle first positioning structure 332, and the first fixing structure 331 on both sides of the first positioning structure 332 is connected with the two second fixing structures 11 on the bottom disc 10), the installation stability and reliability of the stator cover 33 are improved, the axial position of the motor 3 after installation meets the design requirement, so that the coaxiality of the wind wheel 2 and the motor 3 is improved, the wear and tear interference between the rotating part and the stationary part is reduced, the vibration noise of the fan 20 during operation is reduced, and the service life of the fan 20 is improved.

[0066] In some embodiments of the utility model, as shown in Figure 4 and Figure 5 The first positioning structure 332 is formed as a plug 3321 protruding in a direction away from the stator 32, and the second positioning structure 12 is formed as a slot 121, and the plug 3321 is inserted and matched with the slot 121.

[0067] The latch 3321 protrudes towards the direction away from the stator 32, and the structure of the latch 3321 does not interfere with the stator 32, so that the latch 3321 can be applied to various sizes of the stator cover 33, and various stator covers 33 can be positioned with the base plate 10 in a manner that the latch 3321 is inserted and matched with the insertion slot 121, thereby improving the application range of the first positioning structure 332.

[0068] In some embodiments of the utility model, as shown in Figure 6 and Figure 7 The latch 3321 is inserted and matched with the insertion slot 121 together with the first damping sleeve 34.

[0069] The first damping sleeve 34 can reduce the vibration of the latch 3321 of the stator cover 33 in the insertion slot 121, thereby improving the installation stability of the stator cover 33 and reducing the wear of the latch 3321 of the stator cover 33.

[0070] In some embodiments of the utility model, as shown in and

[0071] In some embodiments of the utility model, as shown in Figure 4 and Figure 6 The stator cover 33 includes an annular ring 333 surrounding the stator 32 in the circumferential direction of the stator 32, and the latch 3321 protrudes towards the direction away from the stator 32 and beyond the annular ring 333, as shown in Figure 5 The shape of the side surface of the base plate 10 between the second fixing structure 11 and the second positioning structure 12 towards the stator cover 33 matches the shape of the annular ring 333.

[0072] In the embodiments of the present application, the "annular ring 333 surrounds the stator 32 in the circumferential direction of the stator 32" means that the annular ring 333 surrounds at least part of the outer circumferential region of the stator 32. For example, the stator 32 includes a stator body 321 extending into the rotor ring 311, so the annular ring 333 can not surround the stator body 321, but only surround the mounting portion 322 connected to the shaft end of the stator body 321 and located on the axial outer side of the rotor ring 311. Alternatively, the annular ring 333 can be made larger and surround the rotor ring 311 with a gap, thereby also surrounding the stator body 321 extending into the rotor ring 311.

[0073] The annular ring 333 surrounds the stator 32 in the circumferential direction of the stator 32, so that the stator 32 is stably connected with the stator cover 33. The insertion pin 3321 is arranged on the annular ring 333, so that the insertion pin 3321 protrudes from the annular ring 333 in the radial direction of the stator 32. The stator cover 33 is assembled on the chassis 10 with the circumferential side of the stator 32 opposite to the chassis 10. Therefore, the part of the chassis 10 between the first positioning structure 332 and the second positioning structure 12 is matched with the annular ring 333, so that the annular ring 333 and the chassis 10 are compactly matched, the space utilization in the chassis 10 is improved, and the size is reduced. When the annular ring 333 and the chassis 10 are gap matched or contact matched, the annular ring 333 can be supported to some extent, and the mounting stability of the stator cover 33 is improved.

[0074] In some embodiments of the utility model, as shown in Figure 4 、 Figure 6 and Figure 7 , the stator cover 33 comprises an annular ring 333 surrounding the stator 32 in the circumferential direction of the stator 32. The first fixing structure 331 is a mounting lug 3311 protruding from the annular ring 333 in the direction away from the stator 32. The mounting lug 3311 is fixedly connected with the second fixing structure 11 through the fastener 40 penetrating the mounting lug 3311.

[0075] The annular ring 333 surrounds the stator 32 in the circumferential direction of the stator 32, so that the stator 32 is stably connected with the stator cover 33. The mounting lug 3311 is arranged on the annular ring 333, so that the mounting lug 3311 protrudes from the annular ring 333 in the radial direction of the stator 32. The mounting lug 3311 does not interfere with the stator 32, so that it can be applied to various sizes of stator covers 33. Various stator covers 33 can adopt the mounting lug 3311, which is fixedly connected with the second fixing structure 11 through the fastener 40, so that the application range of the first fixing structure 331 is improved.

[0076] In some embodiments of the utility model, as shown in Figure 4 、 Figure 6 and Figure 7 , a through hole 33111 is penetrated in the mounting lug 3311. The penetration direction of the through hole 33111 is perpendicular to the axial direction of the stator 32. The fastener 40 penetrates the through hole 33111 to be fixedly connected with the second fixing structure 11.

[0077] The two mounting ears 3311 are fixedly connected with the two second fixing structures 11, the penetrating direction of the through hole 33111 on the mounting ear 3311 is perpendicular to the axial direction of the stator 32, after the fastener 40 is threaded through the through hole 33111 to fixedly connect the mounting ear 3311 with the second fixing structure 11, the axial direction of the stator 32 in the stator cover 33 is fixed relative to the chassis 10, and since the penetrating direction of the through hole 33111 is perpendicular to the axial direction of the stator 32, the operation space in this direction is larger, which is beneficial to the cooperation of the rotor 31 and the stator 32. Since the penetrating direction of the through hole 33111 is perpendicular to the axial direction of the stator 32, the fastening in this direction can improve the coaxiality of the rotor 31 and the stator 32, and the coaxiality of the motor 3 and the wind wheel 2, and can reduce the friction between the rotor 31 and the stator 32, thereby improving the working stability of the air conditioner 100.

[0078] Alternatively, the fastener 40 can be in direct contact with the mounting ear 3311. For example, an internal thread is formed in the second fixing structure 11, the fastener 40 is configured as a screw 41, the screw 41 is threadedly connected with the through hole 33111, and the fastener 40 fixedly connects the mounting ear 3311 and the second fixing structure 11 with each other.

[0079] Alternatively, the fastener 40 can also be in indirect contact with the mounting ear 3311 to fixedly connect the mounting ear 3311 and the second fixing structure 11. For example, in some embodiments of the present application, as shown in Figure 4 and Figure 6 A through hole 33111 is formed in the mounting ear 3311, and a second damping sleeve 35 is threaded in the through hole 33111, as shown in Figure 5 and Figure 7 The second fixing structure 11 includes a threaded column 111, the threaded column 111 is threaded in the second damping sleeve 35, as shown in Figure 2 and Figure 6 The fastener 40 is a screw 41, and a threaded rod portion of the screw 41 is threaded in the threaded column 111 to be threadedly connected with the threaded column 111.

[0080] The threaded column 111 is configured as a columnar structure protruding from the chassis 10, and a threaded hole is defined in the threaded column 111. The fastener 40 is indirectly contacted with the mounting ear 3311 through the second damping sleeve 35, and the fastener 40 is fixedly connected with the threaded column 111 through the mounting ear 3311.

[0081] The second damping sleeve 35 is threaded in the through hole 33111, the second damping sleeve 35 is configured as a cylindrical structure, one end of the second damping sleeve 35 close to the threaded column 111 is sleeved on the threaded column 111, the fastener 40 is a screw 41, a threaded rod portion of the screw 41 is threaded through the second damping sleeve 35 from one end of the second damping sleeve 35 away from the threaded column 111 and is threadedly connected with the threaded hole in the threaded column 111.

[0082] By arranging the second damping sleeve 35 in the through hole 33111, the second damping sleeve 35 can be elastically deformed, and the mounting lug 3311 and the second fixing structure 11 are not rigidly connected, but can be slightly displaced by extruding the second damping sleeve 35. The stator cover 33 can drive the stator 32 to be adaptively adjusted relative to the chassis 10, so as to meet the coaxiality of the rotor 31 and the stator 32 and the coaxiality of the motor 3 and the wind wheel 2, reduce the friction between the rotor 31 and the stator 32, reduce the oscillation of the stator 32, and improve the working stability of the air conditioner 100.

[0083] Moreover, the second damping sleeve 35 can also play a damping effect, reduce the vibration noise formed between the fan 20 and the chassis 10, reduce the vibration of the stator cover 33, improve the mounting stability of the stator cover 33, and reduce the wear of the stator cover 33.

[0084] In some embodiments of the utility model, as shown in Figure 6 and Figure 8 The stator cover 33 includes an annular ring 333 surrounding the stator 32 in the circumferential direction of the stator 32, and the stator 32 includes a stator body 321 and a mounting portion 322. The mounting portion 322 is located at the shaft end of the stator body 321 away from the wind wheel 2, and the mounting portion 322 includes a plurality of protrusions 3222 protruding from the outer circumferential surface of the stator body 321 and arranged at intervals in the circumferential direction of the stator 32. A third damping sleeve 36 is arranged on each protrusion 3222. The stator 32 is in abutting cooperation with the annular ring 333 in the radial direction through the third damping sleeve 36. Exemplarily, the stator body 321 can include a stator core and a stator winding.

[0085] It is worth noting that the protrusions 3222 protrude from the outer circumferential surface of the stator body 321, which means that, in the axial direction of the motor 3, the protrusions 3222 protrude outside the contour line of the stator body 321 on the projection plane. The stator body 321 can include a stator core, a stator coil and a wrapping member. The stator core and the stator coil form a stator assembly, and the wrapping member wraps the stator assembly and defines the outer circumferential surface of the stator body 321. The projection of the outer circumferential surface of the wrapping member is the contour line of the stator body 321.

[0086] The stator body 321 generates a magnetic field when energized, thereby interacting with the magnetic field of the rotor 31 to drive the rotor 31 to rotate relative to the stator 32. The outer circumferential surface of the stator body 321 is provided with the mounting portion 322 for fixed connection with the stator cover 33. The mounting portion 322 includes a plurality of protrusions 3222 arranged at intervals in the circumferential direction of the stator 32. The protrusions 3222 protrude from the outer circumferential surface of the stator body 321. The end surface of the protrusion 3222 away from the stator body 321 is in abutting cooperation with the annular ring 333 through the third damping sleeve 36, so as to realize the relative fixation of the stator 32 and the annular ring 333 in the radial direction.

[0087] The third damping sleeve 36 can reduce the vibration between the stator 32 and the stator cover 33, and the friction of the third damping sleeve 36 is stronger, so that the stability of the abutting connection between the stator 32 and the annular ring 333 is improved.

[0088] The third damping sleeve 36 can be elastically deformed, the stator 32 can be relatively small in displacement by extruding the third damping sleeve 36, and the stator 32 can be self-adaptively adjusted in position relative to the stator cover 33, so as to meet the coaxiality of the rotor 31 and the stator 32 and the coaxiality of the motor 3 and the wind wheel 2.

[0089] In some embodiments of the utility model, as shown in Figure 6 and Figure 9 The stator cover 33 further comprises a cover end cap 334, one end of the annular ring 333 close to the wind wheel 2 has a flange 3331, the cover end cap 334 is connected to the end of the annular ring 333 away from the wind wheel 2, and the protruding block 3222 is clamped between the flange 3331 and the cover end cap 334 in the axial direction of the stator 32 through the third damping sleeve 36.

[0090] The stator cover 33 comprises the annular ring 333 and the cover end cap 334, the annular ring 333 surrounds the stator 32, and the cover end cap 334 is arranged at the axial end of the stator 32 and connected to the side of the annular ring 333 away from the wind wheel 2. The cover end cap 334 and the flange 3331 of the annular ring 333 jointly limit the stator 32 in the axial direction, and the cover end cap 334 can limit the stator 32 from moving towards the direction away from the wind wheel 2; one end of the annular ring 333 close to the wind wheel 2 has a flange 3331 extending inward, the flange 3331 can limit the stator 32 from moving towards the direction close to the wind wheel 2, and the installation stability of the installation part 322 of the stator 32 installed in the stator cover 33 is improved.

[0091] It can be understood that the side axial end surface of the stator 32 close to the wind wheel 2 is used for cooperating with the rotor 31, so the cover end cap 334 is connected to the side of the annular ring 333 away from the wind wheel 2. The protruding block 3222 is also located at the outer periphery of the axial end surface of the stator body 321 away from the wind wheel 2, the protruding block 3222 is in abutting connection with the annular ring 333 and is limited in the radial direction, and the protruding block 3222 is clamped between the flange 3331 and the cover end cap 334 to be limited in the axial direction.

[0092] The stator 32 is fixedly connected with the stator cover 33 through the protruding block 3222 in the radial direction of the stator body 321, compared with the axial side fixed connection between the stator cover 33 and the stator 32, the axial size of the motor 3 can be shortened, the motor 3 is an external rotor motor, the axial size of the motor 3 can be further shortened, and the volume of the air conditioner 100 is reduced.

[0093] In some embodiments of the utility model, as shown in Figure 3 and Figure 9As shown, the stator 32 comprises a stator body 321, the center of the stator body 321 has a shaft hole 323, the sliding bearing 37 is arranged in the shaft hole 323, the rotor 31 comprises a rotor ring 311 and a rotating shaft 312 arranged at the center of the rotor ring 311, the stator body 321 extends into the rotor ring 311, the rotating shaft 312 extends into the sliding bearing 37 and is in clearance fit with the sliding bearing 37.

[0094] The embodiment of the utility model discloses stably install stator 32 on the chassis 10, and through the rotating shaft 312 is inserted into the sliding bearing 37 in the shaft hole 323 of stator body 321, it is favorable to promote the coaxial degree of rotor 31 and stator 32, promotes the reliability of the rotation fit of rotor 31 and stator 32, can reduce the friction between rotor 31 and stator 32.

[0095] The sliding bearing 37 is arranged in the shaft hole 323 of the stator body 321, the rotating shaft 312 extends into the sliding bearing 37 and is in clearance fit with the sliding bearing 37, compared with arranging the rolling bearing in the shaft hole, the assembly of the rotating shaft 312 and the sliding bearing 37 is faster and easier, which is favorable to improve the assembly efficiency, improve the production efficiency and reduce the manufacturing cost.

[0096] The rotor 31 comprises a rotor ring 311 and a rotating shaft 312 arranged at the center of the rotor ring 311, the rotating shaft 312 can be directly connected with the rotor ring 311, or indirectly connected through other structures.

[0097] In some embodiments of the utility model, as shown in Figure 9 The sliding bearing 37 comprises a ball bearing 371 and a bearing seat 372, the bearing seat 372 is sleeved outside the ball bearing 371, the rotating shaft 312 is arranged in the ball bearing 371, and the bearing seat 372 is a damping material piece.

[0098] The sliding bearing 37 comprises a bearing seat 372 fixedly installed in the shaft hole 323 and a ball bearing 371 matched with the rotating shaft 312, the ball bearing 371 is arranged in the bearing seat 372, and the rotating shaft 312 is arranged in the ball bearing 371 and is in clearance fit with the ball bearing 371.

[0099] The sliding bearing 37 comprises two parts, so that the materials of the ball bearing 371 and the bearing seat 372 can be different, which is favorable to flexible setting. The bearing seat 372 is a damping material piece, which can reduce vibration and is favorable to reducing wear. When the rotating shaft 312 is inserted into the sliding bearing 37a, the ball bearing 371 can be adjusted in angle by rotating, so that the rotating shaft 312 can be quickly inserted, the assembly efficiency is improved, and the assembly difficulty is reduced.

[0100] And, by setting the bearing seat 372 as a damping material piece, the bearing seat 372 can produce elastic deformation, and the ball bearing 371 can be adaptively adjusted in position by extruding the bearing seat 372, so as to meet the coaxiality of the rotor 31 and the stator 32 and the coaxiality of the motor 3 and the wind wheel 2, improve the wear between the rotor 31 and the stator 32, and improve the working stability of the rotor 31.

[0101] In some embodiments of the utility model, as shown in Figure 1 and Figure 2 The motor gland 50 is fixed to the stator cover 33 and / or the bottom disc 10.

[0102] After the stator cover 33 is fixedly installed on the bottom disc 10, the motor gland 50 is installed outside the stator cover 33, further improving the installation stability of the stator cover 33 and the bottom disc 10.

[0103] And by setting the motor gland 50, the working safety of the stator 32 can also be improved, protecting the internal stator 32 and preventing external pollutants from directly contacting the stator 32. It can be understood that the motor 3 is a live element, and by setting the motor gland 50 to surround the stator cover 33, the user can also be prevented from directly contacting the internal stator 32, improving the safety of use.

[0104] In some embodiments of the utility model, as shown in Figure 2 and Figure 11 The second fixing structure 11 and the first fixing structure 331 are connected through the fastener 40, the motor gland 50 has two third fixing structures 51, the third fixing structure 51 is correspondingly provided with the first fixing structure 331, the fastener 40 is a screw 41 and the threaded rod part penetrates the third fixing structure 51 and the first fixing structure 331, and is threadedly connected with the second fixing structure 11, and the head of the screw 41 abuts against the side of the motor gland 50 away from the bottom disc 10.

[0105] The motor gland 50 has two third fixing structures 51, the third fixing structure 51 is fixedly connected with the second fixing structure 11 on the bottom disc 10, so as to fix the motor gland 50 on the bottom disc 10. The first fixing structure 331 on the stator cover 33 is also fixedly connected with the second fixing structure 11, so the fastener 40 penetrates the third fixing structure 51 and the first fixing structure 331 in turn, and is threadedly connected with the second fixing structure 11, so as to fix the stator cover 33 and the motor gland 50 on the bottom disc 10.

[0106] By setting the third fixing structure 51 corresponding to the first fixing structure 331, the two fasteners 40 can meet the fixed connection of the stator cover 33 and the bottom plate 10 and the fixed connection of the motor gland 50 and the bottom plate 10, the design and manufacturing cost of the additional fixing structure on the bottom plate 10 can be saved, and the installation of the stator cover 33 and the motor gland 50 can be completed by one-time assembly of the fastener 40, the assembly steps can be simplified, the assembly efficiency can be improved, the production efficiency can be improved, and the manufacturing cost can be reduced.

[0107] In some embodiments of the utility model, as shown in Figure 2 The motor gland 50 has a third positioning structure 52, and the bottom plate 10 is provided with a fourth positioning structure 13.

[0108] The motor gland 50 is positioned and matched with the fourth positioning structure 13, and before the motor gland 50 is fixedly connected with the stator cover 33 and / or the bottom plate 10, the motor gland 50 is first positioned and connected with the bottom plate 10, so that the assembly efficiency and the installation yield of the motor gland 50 can be improved.

[0109] In some embodiments of the utility model, as shown in Figure 5 , Figure 10 and Figure 11 The third positioning structure 52 includes a positioning protrusion 521, and the fourth positioning structure 13 includes a positioning slot hole 131 matched with the positioning protrusion 521.

[0110] The positioning protrusion 521 is inserted and matched in the positioning slot hole 131, so that the motor gland 50 is positioned and matched with the bottom plate 10, the insertion and matching of the positioning protrusion 521 and the positioning slot hole 131 are simple, can play a pre-positioning role, and the assembly efficiency can be improved.

[0111] In some embodiments of the utility model, as shown in Figure 5 , Figure 10 and Figure 11 The third positioning structure 52 includes an elastic buckle 522, and the fourth positioning structure 13 includes a positioning clamping groove 132 matched with the elastic buckle 522.

[0112] The elastic buckle 522 can be elastically deformed, the elastic buckle 522 is matched in the positioning clamping groove 132 after deformation, the elastic force of the elastic buckle 522 enables the elastic buckle 522 to be clamped and matched with the positioning clamping groove 132, so that the motor gland 50 and the bottom plate 10 can be clamped and connected together more stably.

[0113] In some embodiments of the utility model, third positioning structure 52 is two, including positioning convex 521 and elastic buckle 522, fourth positioning structure 13 is also two, including with positioning convex 521 cooperation's positioning slot hole 131 and with elastic buckle 522 cooperation's positioning clamping groove 132. Motor gland 50 and chassis 10 positioning cooperation, first positioning convex 521 is inserted into positioning slot hole 131, then in turn rotates, and elastic buckle 522 is clamped into positioning clamping groove 132, and two-point positioning makes that motor gland 50 and chassis 10 cooperation is accurate, stable.

[0114] In some embodiments of the utility model, as shown in Figure 10 Motor gland 50 includes cover body part 53 and side plate part 54, and side plate part 54 is located at the side of cover body part away from wind wheel 2, and third fixed structure 51 is arranged on cover body part 53, and third positioning structure 52 is arranged on side plate part 54.

[0115] Cover body part 53 is located in the radial direction of stator 32, and side plate part 54 is located in the axial direction of stator 32, and cover body part 53 and side plate part 54 are jointly matched with chassis 10 to surround stator cover 33. Third fixed structure 51 is arranged on cover body part 53, and third positioning structure 52 is arranged on side plate part 54, and side plate part 54 can be matched with chassis 10 while protecting stator cover 33. Third fixed structure 51 fixedly connected with stator cover 33 and third positioning structure 52 matched with chassis 10 do not interfere with each other, can make full use of space, and facilitate assembly.

[0116] In some embodiments of the utility model, as shown in Figure 10 Side plate part 54 is respectively provided with third positioning structure 52 near the two ends of the two third fixed structures 51.

[0117] Third positioning structure 52 is two and is respectively close to the two third fixed structures 51, and the cooperation between motor gland 50 and chassis 10 at third positioning structure 52 is more stable, so that third positioning structure 52 is arranged close to third fixed structure 51, the positioning accuracy between each third fixed structure 51 and chassis 10 can be improved, and the accuracy and assembly efficiency of the connection between third fixed structure 51 and first fixed structure 331 can be improved.

[0118] In some embodiments of the utility model, as shown in Figure 1 And Figure 2 Air conditioner 100 further includes volute (not shown in the figure), and volute is matched with chassis 10 to jointly define air duct cavity 10a, and wind wheel 2 is matched in air duct cavity 10a, and motor 3 is located outside air duct cavity 10a.

[0119] The volute is used for smoothly guiding the airflow out, and the volute and the bottom plate 10 jointly define an air duct cavity 10a, the fan wheel 2 is rotatably fitted in the air duct cavity 10a, and the fan wheel 2 generates the flowing airflow to be sent out of the air conditioner 100 along the air duct cavity 10a. The motor 3 used for driving the fan wheel 2 to rotate is arranged outside the air duct cavity 10a instead of being arranged in the air duct cavity 10a together with the fan wheel 2, so that the motor 3 can reduce the disturbance to the airflow, and noise generated by the airflow blowing the motor 3 can be reduced.

[0120] In some embodiments of the utility model, as shown in Figure 1 The air conditioner 100 further comprises a motor gland 50, the motor gland 50 is matched with the bottom plate 10 to surround the motor 3, and the motor gland 50 seals the end of the air duct cavity 10a close to the motor 3.

[0121] The motor gland 50 not only can protect the internal motor 3 and improve the mounting stability of the stator cover 33 and the bottom plate 10, but also can reduce the airflow escaping from the motor 3, reduce the airflow loss, and improve the air outlet effect of the air conditioner 100.

[0122] In some embodiments of the utility model, a bearing chamber is formed in the bottom plate 10 on the side of the air duct cavity 10a away from the motor 3, the fan wheel bearing 24 is connected with the first end 2b of the fan wheel 2, and the fan wheel bearing 24 is rotatably arranged in the bearing chamber, so that the fan wheel 2 can be rotatably arranged in the air duct cavity 10a through the fan wheel bearing 24 of the first end 2b.

[0123] The assembly process of the fan 20 and the bottom plate 10 in an embodiment of the utility model will be briefly described below with reference to the drawings.

[0124] The stator 32 of the motor 3 is separated from the fan wheel 2, and the rotor 31 of the motor 3 is fixedly installed on the second end 2c of the fan wheel 2.

[0125] First, the stator 32 is fixedly installed in the stator cover 33. The protrusion 3222 on the mounting portion 322 of the stator 32 is sleeved with the third damping sleeve 36, the stator 32 is limited in the radial direction through the abutting cooperation of the third damping sleeve 36 and the annular ring 333, then the cover end cap 334 is fixedly connected with the annular ring 333, the third damping sleeve 36 is clamped between the cover end cap 334 and the flange 3331 on the annular ring 333, so that the stator 32 is fixedly installed in the stator cover 33.

[0126] Subsequently, the stator cover 33 is installed on the base plate 10. On the one hand, the first damping sleeve 34 is sleeved on the pin 3321, and the pin 3321 is inserted into the slot 121 on the base plate 10 in combination with the first damping sleeve 34, so as to position the stator cover 33 and the base plate 10; on the other hand, the second damping sleeve 35 is installed in the through hole 33111 of the mounting lug 3311, and the mounting lug 3311 is overlapped with the threaded column 111, and at least part of the threaded column 111 is arranged in the second damping sleeve 35.

[0127] Then, the wind wheel 2 is installed on the base plate 10. The wind wheel 2 is inserted into the stator 32 along the axial direction of the stator 32, the rotating shaft 312 is inserted into the sliding bearing 37 in the shaft hole 323 of the stator body 321, and then the first end 2b of the wind wheel 2 is rotatably supported on the base plate 10, so that the wind wheel 2 is rotatably assembled on the base plate 10. Alternatively, the stator 32 and the rotor 31 fixed to the wind wheel 2 can be inserted first, and then the wind wheel 2 and the stator cover 33 are installed on the base plate 10.

[0128] Finally, the motor gland 50 is installed on the base plate 10. The positioning protrusion 521 is inserted into the positioning slot 131, and then the elastic buckle 522 is buckled into the positioning buckle slot 132 by rotating, so that the motor gland 50 is positioned on the base plate 10. The third fixing structure 51 corresponds to the first fixing structure 331, the threaded rod of the screw 41 penetrates through the third fixing structure 51 and the mounting lug 3311, and is screwed with the threaded hole in the threaded column 111, so that the motor gland 50 cooperates with the base plate 10 to surround the stator cover 33, and the motor gland 50 is fixedly connected with the stator cover 33 and the base plate 10.

[0129] In some embodiments of the utility model, as shown in Figure 3 and Figure 9 The rotor 31 comprises a rotor ring 311 and a rotor guard ring 314, and the stator 32 comprises a stator body 321, the stator body 321 extends into the rotor ring 311, the rotor guard ring 314 is arranged around the rotor ring 311 along the circumferential direction of the rotor 31, the rotor guard ring 314 is fixedly connected with the wind wheel 2, and has a spacing gap with the stator cover 33 along the axial direction of the motor 3.

[0130] The rotor guard ring 314 is located on the circumferential outer side of the rotor ring 311, and the rotor guard ring 314 can protect the rotor ring 311 on the inner side, and improve the damage to the rotor ring 311 during transportation and movement.

[0131] The rotor guard ring 314 is fixedly connected with the wind wheel 2, an end of the rotor guard ring 314 close to the stator cover 33 has a spacing gap with the stator cover 33, so that the rotor guard ring 314 rotates with the wind wheel 2 relative to the stator cover 33 without frictional interference with the stator cover 33. And the spacing gap can accommodate the displacement distance of the wind wheel 2 relative to the motor 3, and the wind wheel 2 will not collide with the stator cover 33 when it is displaced relative to the motor 3, thereby improving the working stability of the fan 20.

[0132] In some embodiments of the utility model, as shown in Figure 12 The wind wheel 2 includes a wind wheel body 21 and first and second end covers 22 and 23 arranged at the axial two ends of the wind wheel body 21, one end of the wind wheel 2 provided with the first end cover 22 is a first end 2b, and one end of the wind wheel 2 provided with the second end cover 23 is a second end 2c; wherein the rotor ring 311 and the rotor guard ring 314 are fixedly connected with the second end cover 23.

[0133] The rotor ring 311 and the rotor guard ring 314 are fixedly connected with the second end cover 23, wherein the fixed connection can be detachable or non-detachable, as long as the two are relatively fixed. The rotor guard ring 314 protects the internal rotor ring 311. When the motor 3 is powered on, the magnetic field generated by the stator 32 and the magnetic field generated by the rotor 31 interact to enable the rotor 31 to rotate relative to the stator 32, and the rotor 31 drives the wind wheel 2 to rotate.

[0134] In some embodiments of the utility model, the rotor 31 is integrally connected with the second end cover 23, i.e. non-detachable connection, such as welding, injection molding, bonding, etc. The steps of assembling the rotor 31 and the second end cover 23 can be simplified, the assembly efficiency is improved, the volume required for assembling the rotor 31 and the second end cover 23 can be saved, the amount of manufacturing material of the rotor 31 can be reduced, and the manufacturing cost is saved.

[0135] In some other embodiments of the utility model, as shown in Figure 13 The wind wheel 2 includes a wind wheel body 21 and first and second end covers 22 and 23 arranged at the axial two ends of the wind wheel body 21, one end of the wind wheel 2 provided with the first end cover 22 is a first end 2b, and one end of the wind wheel 2 provided with the second end cover 23 is a second end 2c; the motor 3 further includes a rotor end plate 313 arranged between the rotor ring 311 and the second end cover 23, the rotor ring 311 and the rotor guard ring 314 are fixedly connected with the rotor end plate 313, and the rotor end plate 313 is fixedly connected with the second end cover 23, wherein the fixed connection can be detachable or non-detachable, as long as the two are relatively fixed.

[0136] The rotor guard ring 314 and the rotor ring 311 are both mounted on the rotor end plate 313, and the rotor end plate 313 is fixedly connected with the second end cover 23. By connecting the rotor ring 311 and the rotor guard ring 314 with the second end cover 23 through the rotor end plate 313, the rotor end plate 313 is mainly designed to cooperate with the rotor ring 311, and the cooperation with the wind wheel body 21 is not considered, and similarly, the second end cover 23 is mainly designed to cooperate with the wind wheel body 21, and the cooperation with the rotor ring 311 is not considered, so that the rotor 31 of the embodiment of the utility model can be adapted to the second end cover 23 of the wind wheel 2 of various shapes and specifications through the rotor end plate 313, thereby realizing the standardized production of the rotor 31, and the manufacturing cost of the motor 3 is reduced.

[0137] In some embodiments of the utility model, the air conditioner 100 is an air conditioner hanging machine, as shown in the figure, the axial direction of the cross-flow wind wheel 2a is the left-right direction. Figure 1

[0138] The air conditioner 100 is an air conditioner hanging machine, which is convenient to use in a space-limited environment, and by arranging the above motor 3, the axial dimension of the motor 3 can be shortened, the space occupation of the air conditioner hanging machine in the left-right direction can be reduced, the volume of the air conditioner 100 is reduced, and the air conditioner 100 is arranged and used conveniently.

[0139] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0140] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0141] ​In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection, still can be communication;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element internals or the interaction relationship of two elements. For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0142] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection, still can be communication;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element internals or the interaction relationship of two elements. For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0143] In the description of the present specification, the description of 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 utility model. In the present specification, the illustrative description of the above terms does 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 the different embodiments or examples described in the present specification and the features of different embodiments or examples without contradiction.

[0144] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and its equivalents.

Claims

1. An air conditioner characterized by comprising: Include: Chassis; Fan, the fan includes a fan wheel and a motor, the fan wheel is a cross-flow fan and the axial two ends are respectively the first end and the second end, the first end is rotatably supported on the chassis, the motor is coaxially arranged with the fan wheel, the motor is an outer rotor motor and includes a rotor and a stator, the rotor is fixedly connected with the second end and rotationally matched with the stator; Wherein, the motor further includes a stator cover, the stator is fixedly installed on the stator cover, the stator cover has two first fixing structures and a first positioning structure located between the two first fixing structures, the chassis has two second fixing structures and a second positioning structure located between the two second fixing structures, the second fixing structure is correspondingly arranged with the first fixing structure and is fixedly connected, and the second positioning structure is correspondingly arranged with the first positioning structure and is positioned and matched.

2. The air conditioner of claim 1, wherein The first positioning structure is formed as a latch protruding away from the stator, the second positioning structure is formed as a slot, and the latch is inserted and matched with the slot.

3. The air conditioner of claim 2, wherein The latch is provided with a first damping sleeve, and the latch is inserted and matched with the slot together with the first damping sleeve.

4. The air conditioner of claim 2, wherein The stator cover includes an annular ring surrounding the stator along the circumferential direction of the stator, the latch protrudes away from the annular ring in the direction away from the stator, and the shape of the side surface of the chassis towards the stator cover between the second fixing structure and the second positioning structure matches the shape of the annular ring.

5. The air conditioner of claim 1, wherein The stator cover includes an annular ring surrounding the stator along the circumferential direction of the stator, the first fixing structure is a mounting ear protruding away from the annular ring in the direction away from the stator, and the mounting ear is fixedly connected with the second fixing structure through a fastener penetrating the mounting ear.

6. The air conditioner of claim 5, wherein A through hole is formed in the mounting ear, the penetrating direction of the through hole is perpendicular to the axial direction of the stator, and the fastener penetrates the through hole to be fixedly connected with the second fixing structure.

7. The air conditioner according to claim 5 or 6, characterized by A through hole is formed in the mounting ear, a second damping sleeve is penetrated in the through hole, the second fixing structure includes a threaded column, the threaded column penetrates the second damping sleeve, and the fastener is a screw and a threaded rod part penetrates the threaded column to be threadedly connected with the threaded column.

8. The air conditioner of claim 1, wherein The stator cover includes an annular ring surrounding the stator along the circumferential direction of the stator, the stator includes a stator body and a mounting portion, the mounting portion is located at the axial end of the stator body away from the fan wheel, and includes a plurality of protrusions protruding from the outer circumferential surface of the stator body and spaced apart along the circumferential direction of the stator, a third damping sleeve is provided on the outer surface of each protrusion, and the stator is abutted and matched with the annular ring in the radial direction through the third damping sleeve.

9. The air conditioner of claim 8, wherein The stator cover further includes a cover end cover, one end of the annular ring close to the fan has a flange, the cover end cover is connected to the other end of the annular ring away from the fan, and the protrusions are clamped between the flange and the cover end cover in the axial direction of the stator through the third damping sleeve.

10. The air conditioner of claim 1, wherein The stator comprises a stator body, a center of the stator body is provided with a shaft hole, a sliding bearing is arranged in the shaft hole, the rotor comprises a rotor ring and a rotating shaft arranged in the center of the rotor ring, the stator body extends into the rotor ring, the rotating shaft extends into the sliding bearing and is in clearance fit with the sliding bearing.

11. The air conditioner of claim 10, wherein The sliding bearing comprises a ball bearing and a bearing seat, the bearing seat is sleeved outside the ball bearing, the rotating shaft is arranged in the ball bearing, and the bearing seat is a damping material piece.

12. The air conditioner of claim 1, wherein Further comprising: A motor gland, the motor gland is matched with the chassis to surround the stator cover, and the motor gland is fixed to the stator cover and / or the chassis.

13. The air conditioner of claim 12, wherein The second fixing structure is connected with the first fixing structure through a fastener, the motor gland is provided with two third fixing structures, the third fixing structures are arranged correspondingly with the first fixing structure, the fastener is a screw, a threaded rod portion of the screw penetrates through the third fixing structure and the first fixing structure, and is threadedly connected with the second fixing structure, and a head portion of the screw is abutted against a side of the motor gland away from the chassis.

14. The air conditioner of claim 13, wherein The motor gland is provided with a third positioning structure, the chassis is provided with a fourth positioning structure, the fourth positioning structure is arranged correspondingly with the third positioning structure and is in positioning fit.

15. The air conditioner of claim 14, wherein The third positioning structure comprises a positioning protrusion, and the fourth positioning structure comprises a positioning slot hole matched with the positioning protrusion. The third positioning structure comprises an elastic buckle, and the fourth positioning structure comprises a positioning clamping groove matched with the elastic buckle.

16. The air conditioner according to claim 14 or 15, characterized by The motor gland comprises a cover body portion and a side plate portion, the side plate portion is located at a side of the cover body portion away from the fan wheel, the third fixing structure is arranged on the cover body portion, and the third positioning structure is arranged on the side plate portion.

17. The air conditioner of claim 16, wherein The side plate portion is respectively provided with the third positioning structure near two ends of the two third fixing structures.

18. The air conditioner of claim 1, wherein The air conditioner further comprises a volute, the volute is matched with the chassis to jointly define an air duct cavity, the fan wheel is matched in the air duct cavity, and the motor is located outside the air duct cavity.

19. The air conditioner of claim 18, wherein The air conditioner further comprises a motor gland, the motor gland is matched with the chassis to surround the motor, and the motor gland seals an end of the air duct cavity close to the motor.

20. The air conditioner of claim 1, wherein The rotor comprises a rotor ring and a rotor guard ring, the stator comprises a stator body, the stator body extends into the rotor ring, the rotor guard ring is arranged around the rotor ring along a circumferential direction of the rotor, the rotor guard ring is fixedly connected with the fan wheel, and has a spacing gap with the stator cover along an axial direction of the motor.

21. The air conditioner of claim 20, wherein The fan wheel comprises a fan wheel body and first and second end covers arranged at two axial ends of the fan wheel body, one end of the fan wheel provided with the first end cover is the first end, and one end of the fan wheel provided with the second end cover is the second end. The rotor ring and the rotor guard ring are respectively fixedly connected with the second end cover. Alternatively, the motor further comprises a rotor end plate arranged between the rotor ring and the second end cover, the rotor ring and the rotor retainer ring are fixedly connected with the rotor end plate, and the rotor end plate is fixedly connected with the second end cover.

22. The air conditioner of claim 1, wherein The air conditioner is a wall-mounted air conditioner, and the axial direction of the cross-flow fan wheel is the left-right direction.

Images