Stator assembly, motor and household appliance

Abstract

The utility model discloses a stator assembly, a motor and a household electrical appliance, and relates to the technical field of motors. The stator assembly comprises the stator iron core and the plastic coating part, and the stator iron core is coated with the plastic coating part, so that the production and assembly steps can be reduced, and the production efficiency is improved. And meanwhile, the plastic coating part and the stator iron core form a whole, so that the mechanical vibration of the motor is reduced, and the noise is reduced. The opening part of the plastic-coated part is provided with a spigot boss, and the spigot boss is arranged around the central axis of the stator core. The outer wall of the spigot boss is provided with the installation part used for installing the supporting leg of the motor, and assembling of the motor is facilitated. As the inner wall of the spigot boss is constructed to be the continuous annular surface, and the annular surface is in abutting fit with the abutting part of the end cover, a gap between the supporting leg and the spigot boss and communicated with the interior of the motor can be eliminated. Therefore, the end cover can effectively prevent noise in the motor from being transmitted to the outside of the motor while playing a dustproof and waterproof role, so that the noise during the operation of the motor is further reduced, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, in particular to a kind of stator assembly, motor and household appliance. BACKGROUND

[0002] The stator core of plastic package motor is plastic packaged by plastic wrapping part. The rear end of the plastic wrapping part is provided with a stop protrusion that cooperates with the end cover and a mounting portion that is fixedly connected with the leg. The mounting portion and the stop protrusion are spaced apart, so that when the mounting portion is connected with the leg, a gap is formed between the leg and the stop protrusion that communicates the inside of the motor. When the motor is running, noise is generated, which can be easily transmitted to the outside of the motor through the gap, resulting in a relatively large noise when the motor is running. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a stator assembly that can reduce the noise when the motor is running.

[0004] The utility model further provides a motor and a household appliance having the above-mentioned stator assembly.

[0005] According to the stator assembly of the first aspect of the utility model, the stator assembly is applied to a motor having an end cover. The stator assembly includes a stator core, a plastic wrapping part that is plastic wrapped on the stator core, an open end of the plastic wrapping part having a stop protrusion that is arranged around the central axis of the stator core, an outer wall of the stop protrusion having a mounting portion for mounting the leg of the motor, and an inner wall of the stop protrusion being configured as a continuous annular surface that is used for abutting cooperation with an abutting portion of the end cover.

[0006] The stator assembly according to the utility model embodiment has at least the following beneficial effects:

[0007] By plastic wrapping the plastic wrapping part on the stator core, the production and assembly steps can be reduced, and the production efficiency can be improved. At the same time, the plastic wrapping part and the stator core form an integral whole, which helps to reduce the mechanical vibration of the motor and reduce the noise. The open end of the plastic wrapping part is provided with a stop protrusion that is arranged around the central axis of the stator core. The outer wall of the stop protrusion is provided with a mounting portion for mounting the leg of the motor, which is conducive to the assembly of the motor. Since the inner wall of the stop protrusion is configured as a continuous annular surface, the annular surface abuts with the abutting portion of the end cover, which can eliminate the gap between the leg and the stop protrusion that communicates the inside of the motor. Therefore, the end cover not only plays a dustproof and waterproof role, but also effectively blocks the noise in the motor from being transmitted to the outside of the motor, further reduces the noise when the motor is running, and improves the user's experience.

[0008] According to some embodiments of the utility model, the side wall of the plastic wrapping part is provided with a plurality of first mounting seats, the plurality of first mounting seats are arranged along the circumference of the stator assembly, and one end of the first mounting seat towards the end face of the stop flange is provided with a first connecting hole for connecting the end cover.

[0009] According to some embodiments of the utility model, the first mounting seat extends along the axial direction of the stator assembly, and the first connecting hole penetrates through both ends of the first mounting seat along the axial direction of the stator assembly.

[0010] According to some embodiments of the utility model, the mounting part is provided with a mounting groove, the mounting groove extends to the stop flange and the first mounting seat, the first connecting hole is located on the bottom wall of the mounting groove, and the first connecting hole is used for connecting the supporting leg and the end cover.

[0011] According to some embodiments of the utility model, the mounting part comprises a convex column for positioning cooperation with the supporting leg, and the convex column is arranged on the bottom wall of the mounting groove.

[0012] According to some embodiments of the utility model, the side wall of the plastic wrapping part is provided with a second mounting seat, the second mounting seat extends along the axial direction of the stator assembly, one end of the second mounting seat is flush with the end face of the stop flange and is connected with the stop flange, and the second mounting seat, which is flush with the stop flange, is provided with a second connecting hole.

[0013] According to some embodiments of the utility model, the end face of the stop flange is provided with a positioning column for positioning cooperation with the end cover.

[0014] The motor according to the second aspect of the utility model comprises the stator assembly according to the above embodiments.

[0015] The motor according to the utility model has at least the following beneficial effects:

[0016] By adopting the stator assembly according to the first aspect of the utility model, the stator assembly is wrapped by the plastic wrapping part, which can reduce the production and assembly steps and improve the production efficiency. Meanwhile, the plastic wrapping part and the stator core form an integral whole, which helps to reduce the mechanical vibration of the motor and reduce the noise. The opening part of the plastic wrapping part is provided with a stop flange, and the stop flange is arranged around the central axis of the stator core. The outer wall of the stop flange is provided with a mounting part for mounting the supporting leg of the motor, which is conducive to the assembly of the motor. Since the inner wall of the stop flange is configured as a continuous annular surface, the annular surface and the abutting part of the end cover abut and cooperate, which can eliminate the gap between the supporting leg and the stop flange for connecting the inside of the motor. Therefore, the end cover plays a role of dustproof and waterproof, and can also effectively block the noise in the motor from being transmitted to the outside of the motor, further reducing the noise of the motor during operation and improving the user experience.

[0017] According to some embodiments of the present application, the motor further comprises an end cover, the end cover comprising: a bearing part forming a bearing chamber; an abutting part connected to the bearing part and arranged around the bearing chamber, the abutting part and the inner wall of the stop flange abuttingly fit; a positioning flange connected to the abutting part and arranged around the abutting part, the positioning flange and the end face of the stop flange positionally fit; a reinforcing part arranged at least one of the bearing part, the abutting part and the positioning flange.

[0018] According to some embodiments of the present application, the reinforcing part comprises a reinforcing rib, a protruding rib and a reinforcing flange, the reinforcing rib is arranged at the end face of the bearing part, the protruding rib is arranged at the abutting part, the protruding rib is arranged in plurality and is arranged around the bearing chamber at intervals, and the reinforcing flange is connected to the edge of the positioning flange.

[0019] The household appliance according to the third aspect of the present application comprises the motor according to the above embodiments.

[0020] The household appliance according to the embodiments of the present application has at least the following beneficial effects:

[0021] By adopting the motor according to the second aspect of the present application, the stator assembly of the motor is wrapped in the stator core by the wrapping part, which can reduce the production and assembly steps and improve the production efficiency. Meanwhile, the wrapping part and the stator core form an integral whole, which helps to reduce the mechanical vibration of the motor and reduce the noise. The opening part of the wrapping part is provided with a stop flange, and the stop flange is arranged around the central axis of the stator core. The outer wall of the stop flange is provided with a mounting part for mounting the leg of the motor, which is conducive to the assembly of the motor. Since the inner wall of the stop flange is configured as a continuous annular surface, the annular surface and the abutting part of the end cover abuttingly fit, which can eliminate the gap between the leg and the stop flange for communicating the inside of the motor. Therefore, the end cover plays a role of dustproof and waterproof, and can also effectively block the noise in the inside of the motor from being transmitted to the outside of the motor, further reducing the noise of the motor during operation and improving the user experience.

[0022] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described below in conjunction with the drawings and embodiments, in which:

[0024] Figure 1 is a structural schematic view of a stator assembly of an embodiment of the present application;

[0025] Figure 2 is a structural schematic view of the connection between the stator assembly and the leg of an embodiment of the present application;

[0026] Figure 3 is a structure sectional view of a motor of an embodiment of the utility model;

[0027] Figure 4 is a structure schematic view of the motor after hiding the support leg of an embodiment of the utility model;

[0028] Figure 5 is a structure schematic view of the end cover of an embodiment of the utility model;

[0029] Figure 6 is the end cover sectional view of an embodiment of the utility model.

[0030] Reference signs:

[0031] Stator assembly 1000;

[0032] Stator core 100;Winding 110;Insulating frame 120;

[0033] Plastic-coated part 200;Opening part 201;Stop opening boss 210;Positioning column 211;Mounting groove 220;Convex column 221;First mounting seat 230;First connecting hole 231;Second mounting seat 240;Second connecting hole 241;Mounting part 250;

[0034] Motor 2000;

[0035] End cover 300;Bearing part 311;Bearing chamber 312;Butt joint part 313;First annular sheet 314;Second annular sheet 315;Positioning flange 316;Strengthening part 320;Strengthening rib 321;Convex rib 322;Strengthening flange 323;Connecting part 330;Third connecting hole 331;Positioning hole 332;

[0036] Support leg 400;Positioning groove 410;Fastener 420. DETAILED DESCRIPTION

[0037] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0038] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of the indication of up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as the limitation of the utility model.

[0039] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described to the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0040] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. should be understood broadly, and the person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0041] Referring to Figure 1 , Figure 2 and Figure 3 , the stator assembly 1000 of an embodiment of the utility model can be used for motor 2000, for example, drum motor or plastic package motor. The stator assembly 1000 of the embodiment of the utility model comprises stator core 100 and plastic-coated part 200, the stator core 100 is sleeved with insulation frame 120, and winding 110 is wound on insulation frame 120. The plastic-coated part 200 is plastic-coated on the stator core 100, insulation frame 120 and winding 110, which can reduce the production and assembly steps of the stator assembly 1000 and improve the production efficiency. At the same time, the plastic-coated part 200 and the stator core 100, insulation frame 120 and winding 110 form an integral whole, which helps to reduce the mechanical vibration of the motor 2000 and reduce the noise.

[0042] Referring to Figure 1 , one end of the plastic-coated part 200 has an opening part 201, and the opening part 201 can be located at the rear end of the plastic-coated part 200. It can be understood that usually the rotating shaft of the motor 2000 protrudes at one end, and the other end of the rotating shaft is still located inside the motor 2000. Therefore, the end of the rotating shaft of the motor 2000 protruding is the front end of the motor 2000, and the other end of the motor 2000 is the rear end. The outer wall of the stop flange 210 is provided with a mounting part 250, and the mounting part 250 is used for mounting the leg 400 of the motor. The end surface of the opening part 201 is provided with the stop flange 210, and the stop flange 210 is arranged around the central axis of the stator core 100. The inner wall of the stop flange 210 is configured as a continuous annular surface. The motor 2000 comprises an end cover 300, and the abutting portion 313 of the end cover 300 and the annular surface of the stop flange 210 are in abutting cooperation.

[0043] With the above scheme, since the annular surface of the flange boss 210 is a continuous annular structure, and the abutting portion 313 of the end cover 300 and the flange boss 210 abut and cooperate, the dustproof and waterproof effect is achieved, at the same time, the noise inside the motor 2000 can be effectively blocked from being transmitted to the outside of the motor 2000, further reducing the noise of the motor 2000 during operation, and improving the user experience.

[0044] Referring to Figure 1 As shown in the drawings, in the embodiment of the utility model, the side wall of the plastic-coated part 200 is provided with a plurality of first mounting seats 230, the plurality of first mounting seats 230 are arranged at intervals along the circumference of the stator assembly 1000, and one end of the first mounting seat 230 towards the flange boss 210 is provided with a first connecting hole 231. For example, the first mounting seat 230 is provided with two and is integrally injection molded with the plastic-coated part 200, which can improve the stability and reliability of the connection between the first mounting seat 230 and the plastic-coated part 200. Of course, the first mounting seat 230 can also be other quantities, such as three, four, etc., and the appropriate number is selected according to the actual situation. The end cover 300 includes a connecting portion 330, and the connecting portion 330 is provided with a third connecting hole 331. The motor 2000 further includes a fastener 420, which can be a screw, a bolt, etc. Taking the bolt as an example, the bolt is arranged in the third connecting hole 331 and the first connecting hole 231, and is connected by a nut and a bolt thread, so as to be fixedly connected to the plastic-coated part 200.

[0045] Referring to Figure 1 and Figure 2 As shown in the drawings, in the embodiment of the utility model, the mounting portion 250 is provided with a mounting groove 220, the mounting groove 220 extends to the rear end of the flange boss 210 and the first mounting seat 230, and the mounting groove 220 is used for mounting the leg 400 of the motor 2000. It can be understood that when the motor 2000 is installed in a washing machine, an air conditioner or other household appliances, it needs to be connected to the washing machine through the leg 400. By arranging the mounting groove 220, the leg 400 can be conveniently installed. Since the mounting groove 220 extends to the flange boss 210, the leg 400 is closer to the center of the motor 2000, the overall structure of the motor 2000 is more compact, and the occupied volume is small. At the same time, when the connecting portion 330 of the end cover 300 is connected with the plastic-coated part 200, the same fastener 420 can be arranged in the first connecting hole 231, the leg 400 and the third connecting hole 331 at the same time, so that the end cover 300 can also be fixed when it is installed. The leg 400 reduces the number of parts used, and improves the compactness of the motor 2000.

[0046] Referring to Figure 1 and Figure 3As shown, in the embodiment of the utility model, first mounting seat 230 is arranged along the axial extension of stator assembly 1000, and first connecting hole 231 penetrates both ends of first mounting seat 230 along the axial direction of stator assembly 1000. The axial direction of stator assembly 1000 is the front-back direction in Figure 1 It can be understood that when motor 2000 is installed in a washing machine, the strength and stability of motor 2000 are required to be high because motor 2000 needs to drive the rotation of the drum and a large amount of water is contained in the drum. Therefore, by arranging first mounting seat 230 to extend along the axial direction and arranging first connecting hole 231 to penetrate both ends of first mounting seat 230 along the axial direction, the stability and reliability of the connection between supporting leg 400 and plastic-coated part 200 can be effectively improved, the loosening and falling of supporting leg 400 can be avoided, and the safety of motor 2000 is improved.

[0047] As shown in Figure 1 and Figure 2 In the embodiment of the utility model, mounting part 250 includes protruding column 221, which is arranged on the bottom wall of mounting groove 220 and is used for positioning and cooperating with supporting leg 400. It can be understood that in order to facilitate the positioning of the relative positions of supporting leg 400 and mounting groove 220, supporting leg 400 is provided with positioning groove 410, and protruding column 221 is inserted into positioning groove 410 to determine the relative positions of supporting leg 400 and mounting groove 220, which facilitates the positioning and installation of supporting leg 400 and improves the installation efficiency.

[0048] As shown in Figure 1 and Figure 3 In the embodiment of the utility model, the side wall of plastic-coated part 200 is provided with second mounting seat 240, which is arranged along the axial extension of stator assembly 1000, one end of second mounting seat 240 is flush with the end surface of stop flange 210 and is connected with stop flange 210, and second mounting seat 240 is provided with second connecting hole 241 at the end flush with stop flange 210. For example, two first mounting seats 230 are arranged, one second mounting seat 240 is arranged, the two first mounting seats 230 and the second mounting seat 240 are arranged at intervals along the circumferential direction of plastic-coated part 200, and the first mounting seat 230 and the second mounting seat 240 are integrally formed on plastic-coated part 200. Since supporting leg 400 is usually two, second mounting seat 240 does not need to install supporting leg 400, so that one end of second mounting seat 240 can be flush with the end surface of stop flange 210 and connected with stop flange 210, the overall strength and rigidity of stop flange 210 and plastic-coated part 200 can be improved, the vibration of motor 2000 can be effectively reduced, and the noise generated by motor 2000 can be reduced.

[0049] The motor 2000 of the embodiment of the utility model, including above embodiment's stator assembly 1000. The motor 2000 of the embodiment of the utility model, adopt above embodiment's stator assembly 1000, by setting plastic part 200 plastic in stator core 100, can reduce production assembly step, improve production efficiency. While plastic part 200 and stator core 100 constitute a whole, help to reduce the mechanical vibration of motor 2000, reduce noise. The end face of plastic part 200 is equipped with the stop mouth boss 210, the stop mouth boss 210 is set around the central axis of stator core 100, and the end cover 300 is connected to the rear end of plastic part 200. Since the stop mouth boss 210 is a continuous annular structure, and the abutting portion 313 of the end cover 300 and the stop mouth boss 210 abut and cooperate, it plays a dustproof and waterproof role while effectively blocking the noise in the motor 2000 from being transmitted to the outside of the motor 2000, further reducing the noise of the motor 2000 during operation and improving the user's experience.

[0050] Referring to Figure 4 and Figure 5 In the embodiment of the utility model, the motor 2000 further includes an end cover 300, the end cover 300 includes a body and a reinforcing portion 320, the body includes a bearing portion 311, an abutting portion 313, a positioning flange 316 and a connecting portion 330, a bearing chamber 312 is formed on the inner side of the bearing portion 311, the bearing chamber 312 is used for installing a bearing, and the shaft of the motor 2000 is matched with the bearing. The abutting portion 313 is connected to the edge of the bearing portion 311 and is arranged around the bearing chamber 312, the abutting portion 313 is used for abutting and cooperating with the inner side wall of the stop mouth boss 210, so as to avoid dust, water and the like from entering the inside of the motor 2000 through the gap between the abutting portion 313 and the stop mouth boss 210, thereby improving the safety and stability of the motor 2000 during operation. The positioning flange 316 is connected to the edge of the abutting portion 313 and is arranged around the abutting portion 313, the positioning flange 316 is used for positioning and cooperating with the end face of the stop mouth boss 210, thereby determining the axial position between the end cover 300 and the motor 2000. The connecting portion 330 is connected to the positioning flange 316, and the connecting portion 330 is used for fixedly connecting with the plastic part 200, thereby fixing the relative position between the end cover 300 and the plastic part 200.

[0051] The reinforcing portion 320 is arranged at least one of the bearing portion 311, the abutting portion 313 and the positioning flange 316. For example, the reinforcing portion 320 is arranged only at the bearing portion 311; or the reinforcing portion 320 is arranged only at the abutting portion 313; or the reinforcing portion 320 is arranged only at the positioning flange 316; or the reinforcing portion 320 is arranged at the bearing portion 311, the abutting portion 313 and the positioning flange 316 simultaneously. It can be understood that the reinforcing portion 320 arranged at least one of the bearing portion 311, the abutting portion 313 and the positioning flange 316 can improve the overall strength and rigidity of the end cover 300, and at the same time can reduce the noise of the motor 2000 in operation.

[0052] Referring to Figure 5 As shown in the embodiment of the utility model, the reinforcing portion 320 includes reinforcing ribs 321, and the reinforcing ribs 321 are arranged on the outer end surface of the bearing portion 311. The outer end surface of the bearing portion 311 is the end surface of the one end of the bearing portion 311 away from the bearing chamber 312. It can be understood that, since the bearing chamber 312 needs to be formed in the bearing portion 311 to install the bearing, arranging the reinforcing ribs 321 on the outer end surface of the bearing portion 311 can avoid the reinforcing ribs 321 occupying the space of the bearing chamber 312, so that the overall structure of the end cover 300 is more compact and the design is more reasonable. At the same time, arranging the reinforcing ribs 321 on the outer end surface of the bearing portion 311 also facilitates the stamping forming of the reinforcing ribs 321, improving the production efficiency. It should be noted that, as an alternative embodiment, the reinforcing ribs 321 can also be arranged on the inner end surface, the inner side surface or the outer side surface of the bearing portion 311, which can also increase the overall rigidity and strength of the end cover 300 and reduce the noise of the motor 2000 in operation.

[0053] Referring to Figure 5 and Figure 6 As shown in the embodiment of the utility model, the outer end surface of the bearing portion 311 is outwardly convex to form the reinforcing ribs 321, and the reinforcing ribs 321 are annular and arranged around the central axis of the bearing chamber 312. For example, through the stamping process, the inner end surface of the bearing portion 311 is recessed, and the outer end surface is convex to form the reinforcing ribs 321. Therefore, the reinforcing ribs 321 and the bearing portion 311 are integrally formed, which can improve the stability and reliability of the connection between the reinforcing ribs 321 and the bearing portion 311, and reduce the risk of loosening and falling off of the reinforcing ribs 321 and the bearing portion 311. It can be understood that arranging the reinforcing ribs 321 on the outer end surface of the bearing portion 311 can avoid the reinforcing ribs 321 occupying the space of the bearing chamber 312, so that the overall structure of the end cover 300 is more compact and the design is more reasonable. The central part of the outer end surface of the bearing portion 311 is provided with a through hole, the through hole is coaxially arranged and communicated with the bearing chamber 312, and the reinforcing ribs 321 are arranged around the edge of the through hole, which is beneficial to the stamping forming of the reinforcing ribs 321 and has high production efficiency.

[0054] Referring to Figure 5As shown, the embodiment of the utility model, the reinforced part 320 includes the convex rib 322, the convex rib 322 is located in the abutment portion 313, and the convex rib 322 is provided with multiple and is spaced apart around the bearing chamber 312. For example, the convex rib 322 is located on the outer wall of the abutment portion 313 to avoid occupying the space inside the motor 2000. As an alternative embodiment, the convex rib 322 can also be arranged on the inner wall of the abutment portion 313, and the appropriate setting position is selected according to the actual situation. It should be noted that the inner wall of the abutment portion 313 refers to the side towards the inside of the motor 2000, and the outer wall of the abutment portion 313 refers to the side away from the inside of the motor 2000. The convex rib 322 can be provided with six, and the six convex ribs 322 are uniformly spaced along the circumference of the bearing chamber 312. Of course, the convex rib 322 can also be other quantities, for example, one, two, three, four, etc., and the appropriate number is selected according to the actual situation. By arranging the convex rib 322 on the abutment portion 313, the overall stiffness and strength of the abutment portion 313 can be enhanced, and arranging multiple convex ribs 322 can further improve the strength of the abutment portion 313, effectively avoiding the deformation and bending of the abutment portion 313. At the same time, it can also reduce the resonance with the motor 2000 to reduce the noise of the motor 2000 during operation.

[0055] Referring to Figure 5 and Figure 6 As shown, in the embodiment of the utility model, the inner wall of the abutment portion 313 is recessed, and the outer wall of the abutment portion 313 corresponding position is outwardly convex to form the convex rib 322. Therefore, the convex rib 322 can be formed on the abutment portion 313 through the stamping process, which can improve the production efficiency. Since the stamping process is adopted, the design of multiple convex ribs 322 is beneficial to the molding of each convex rib 322 and improves the rationality of the structure design of the end cover 300.

[0056] Referring to Figure 5 As shown, in the embodiment of the utility model, the reinforced part 320 includes the reinforcing flange 323, and the reinforcing flange 323 is arranged on the edge of the positioning flange 316. For example, the reinforcing flange 323 is arranged around the positioning flange 316, and the reinforcing flange 323 and the positioning flange 316 are integrally formed, which can improve the stability and reliability of the connection between the reinforcing flange 323 and the positioning flange 316. The arrangement of the reinforcing flange 323 can improve the overall strength and stiffness of the positioning flange 316, effectively reduce the resonance of the end cover 300 and the motor 2000, and reduce the noise of the motor 2000 during operation.

[0057] Referring to Figure 5 and Figure 6As shown, in the embodiment of the utility model, the edge of the positioning flange 316 is outwardly bent to form a reinforcing flange 323, and the outward bending refers to the direction away from the motor 2000, that is, the backward bending. For example, the edge of the positioning flange 316 can be outwardly bent through a press bending process during processing, thereby forming the reinforcing flange 323. With the above scheme, the reinforcing flange 323 has low difficulty in production and manufacturing, high production efficiency, and can effectively improve the overall strength and rigidity of the positioning flange 316 and reduce the noise during operation of the motor 2000. It should be noted that in another embodiment, the edge of the positioning flange 316 is inwardly bent to form a reinforcing flange 323, which can also improve the overall strength and rigidity of the positioning flange 316.

[0058] Referring to Figure 5 As shown, in the embodiment of the utility model, the end cover 300 further comprises a connecting portion 330 connected to the positioning flange 316, the connecting portion 330 is provided with a plurality of connecting portions 330 and is arranged at intervals along the circumference of the positioning flange 316, the connecting portion 330 is used for fixedly connected with the plastic encapsulated stator, the reinforcing flange 323 is connected to the edge of the positioning flange 316 and the edge of the connecting portion 330, and the reinforcing flange 323 is configured as a continuous annular structure. Therefore, the strength and rigidity of the connecting portion 330 and the positioning flange 316 can be increased at the same time.

[0059] Referring to Figure 5 And Figure 6 As shown, in the embodiment of the utility model, the inner side of the body is recessed, the outer side is protruded to form a bearing portion 311, and the bearing portion 311 and the abutting portion 313 are integrally formed. It should be noted that the inner side of the body is the side facing the plastic encapsulation portion 200, and the outer side is the side away from the plastic encapsulation portion 200. For example, through a stamping process, one side of the middle part of the body is recessed, and the other side is protruded to form the bearing portion 311. The processing efficiency can be improved, and the production cost can be reduced.

[0060] Referring to Figure 6 As shown, in the embodiment of the utility model, the abutting portion 313 comprises a first annular sheet 314 and a second annular sheet 315, the first annular sheet 314 is connected to the edge of the bearing portion 311 and extends along the radial direction of the bearing chamber 312, and the second annular sheet 315 is connected to the edge of the first annular sheet 314 and extends in the direction away from the inner side of the first annular sheet 314. The first annular sheet 314 is provided with a reinforcing rib 322, and the second annular sheet 315 is used for abutting and matching with the side wall of the stop flange 210. With the above scheme, the structure of the abutting portion 313 is simple and convenient to manufacture.

[0061] Referring to Figure 5As shown, in the embodiment of the utility model, connecting portion 330 is provided with multiple and is along the circumferential interval of positioning flanging 316. For example, connecting portion 330 is provided with three, and three connecting portions 330 are connected to positioning flanging 316. Of course, connecting portion 330 can also be other quantities, for example, one, two, four, five, etc. Wherein, referring to Figure 2 And Figure 3 As shown, connecting portion 330 is provided with first connecting hole 231, and the plastic wrapping portion 200 includes a mounting seat, and the mounting seat is arranged along the axial direction of motor 2000. The number of mounting seats is the same as the number of connecting portions 330, and the rear end of the mounting seat is provided with a second connecting hole 241. When installing the end cover 300, align the first connecting hole 231 and the second connecting hole 241, and then screw or bolt is arranged in the first connecting hole 231 and the second connecting hole 241, so as to fix the relative position of the end cover 300 and the plastic wrapping portion 200.

[0062] Referring to Figure 4 And Figure 5 As shown, in the embodiment of the utility model, in order to facilitate the positioning and alignment of the first connecting hole 231 and the second connecting hole 241, a positioning hole 332 is further arranged in one of the connecting portions 330, and a positioning column 211 is arranged on the end face of the stop convex boss 210, and the positioning column 211 is inserted into the positioning hole 332, so as to determine the connection of the corresponding connecting portion 330 and the corresponding mounting seat, so as to improve the assembly efficiency of the end cover 300.

[0063] Since the motor 2000 adopts all the technical solutions of the stator assembly 1000 of the above-mentioned embodiment, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiment, which will not be repeated here.

[0064] The household appliance of one embodiment of the utility model, including the motor 2000 of the above-mentioned embodiment, the household appliance can be a washing machine, an air conditioner, a dehumidifier, etc. The household appliance of the embodiment of the utility model adopts the motor 2000 of the above-mentioned embodiment, and the stator assembly 1000 of the motor 2000 is wrapped in the stator core 100 by arranging the plastic wrapping portion 200, which can reduce the production and assembly steps and improve the production efficiency. At the same time, the plastic wrapping portion 200 and the stator core 100 form a whole, which helps to reduce the mechanical vibration of the motor 2000 and reduce the noise. The end face of the plastic wrapping portion 200 is provided with a stop convex boss 210, the stop convex boss 210 is arranged around the central axis of the stator core 100, and the end cover 300 is connected to the rear end of the plastic wrapping portion 200. Since the stop convex boss 210 is a continuous annular structure, and the abutting portion 313 of the end cover 300 and the stop convex boss 210 abut and cooperate, it not only plays a dustproof and waterproof role, but also effectively blocks the noise in the motor 2000 from being transmitted to the outside of the motor 2000, further reduces the noise of the motor 2000 during operation, and improves the user's experience.

[0065] Since the household appliance adopts all the technical solutions of the motor 2000 of the above-mentioned embodiments, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are possessed, which will not be repeated here.

[0066] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the utility model purposes.

Claims

1. A stator assembly for use in a motor with end caps, characterized in that, The stator assembly includes: Stator core; The plastic-coated part is coated on the stator core. One end of the plastic-coated part has an opening. The end face of the opening is provided with a stop boss arranged around the central axis of the stator core. The outer wall of the stop boss is provided with a mounting part for mounting the support leg of the motor. The inner wall of the stop boss is constructed as a continuous annular surface. The annular surface is used to abut and cooperate with the abutment part of the end cover.

2. The stator assembly according to claim 1, characterized in that: The sidewall of the plastic-coated part is provided with a plurality of first mounting seats, which are spaced apart along the circumference of the stator assembly. The end of the first mounting seat facing the stop boss is provided with a first connecting hole for connecting with the end cover.

3. The stator assembly according to claim 2, characterized in that: The first mounting base extends along the axial direction of the stator assembly, and the first connecting hole passes through both ends of the first mounting base along the axial direction of the stator assembly.

4. The stator assembly according to claim 2, characterized in that: The mounting part is provided with a mounting groove, which extends to the stop boss and the first mounting seat. The first connecting hole is located on the bottom wall of the mounting groove and is used to connect the support leg and the end cap.

5. The stator assembly according to claim 4, characterized in that: The mounting part includes a protruding post for positioning and engaging with the outrigger, the protruding post being disposed on the bottom wall of the mounting groove.

6. The stator assembly according to claim 1 or 2, characterized in that: The side wall of the plastic-coated part is provided with a second mounting seat. The second mounting seat extends along the axial direction of the stator assembly. One end of the second mounting seat is flush with the end face of the stop boss and connected to the stop boss. The end of the second mounting seat that is flush with the stop boss is provided with a second connecting hole.

7. The stator assembly according to claim 1, characterized in that: The end face of the stop boss is provided with a positioning post for positioning and engaging with the end cap.

8. An electric motor, characterized in that: Includes the stator assembly as described in any one of claims 1 to 7.

9. The motor according to claim 8, characterized in that, The motor further includes an end cover, the end cover comprising: The bearing section forms the bearing housing; An abutting part is connected to the bearing part and arranged around the bearing chamber, and the abutting part abuts against the inner wall of the stop boss; A positioning flange is connected to and surrounds the abutment portion, and the end face of the positioning flange and the stop boss are positioned and engaged. A reinforcing part is provided at least one of the bearing part, the abutting part, and the positioning flange.

10. The motor according to claim 9, characterized in that, The reinforcing part includes reinforcing ribs, convex ribs, and reinforcing flanges. The reinforcing ribs are located on the end face of the bearing part, the convex ribs are located on the abutting part, and multiple convex ribs are provided and spaced around the bearing chamber. The reinforcing flanges are connected to the edge of the positioning flanges.

11. A household appliance, characterized in that: The motor included in any one of claims 8 to 10.

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