Stator assembly, motor and air conditioner

Abstract

The utility model discloses a stator assembly, a motor and an air conditioner, and the stator assembly comprises a plurality of stator iron cores which are enclosed to form a ring, and a winding groove is formed between every two adjacent stator iron cores. The insulating frame assembly comprises a first insulating frame and a second insulating frame, the first insulating frame comprises a first bottom plate and a first side wall, the second insulating frame comprises a second bottom plate and a second side wall, the first bottom plate and the second bottom plate are located on the two sides of the stator iron core in the axial direction respectively, and the first side wall is connected with the first bottom plate and extends towards the second bottom plate; the second side wall is connected with the second bottom plate and extends towards the first bottom plate, the inner wall face of the first side wall is flush with the inner wall face of the winding groove or contracts inwards to the inner wall face of the winding groove, and the second side wall wraps the inner wall face of the winding groove and at least part of the first side wall. According to the stator assembly provided by the utility model, the space of the winding groove occupied by the insulating frame assembly can be reduced, the power of the motor can be improved, the structure is simple, and the manufacturing cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and more specifically, to a stator assembly, a motor and an air conditioner. Background Art

[0002] In the related art, after two insulating frames of a stator assembly are connected to each other, the space occupied by the winding slots of the stator core is relatively large, which easily affects the number of turns of the stator winding, thereby reducing the power of the motor. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a stator assembly, which can reduce the space occupied by the insulating frame assembly in the winding slots, is beneficial to improving the power of the motor, and has a simple structure and can reduce the manufacturing cost.

[0004] Another object of the utility model is to provide a motor having the above stator assembly.

[0005] Still another object of the utility model is to provide an air conditioner having the above motor.

[0006] The stator assembly according to an embodiment of the utility model includes: a stator core, a plurality of the stator cores enclosing to form a ring shape, and a winding slot is formed between two adjacent stator cores; an insulating frame assembly, the insulating frame assembly includes a first insulating frame and a second insulating frame, the first insulating frame includes a first bottom plate and a first side wall, the second insulating frame includes a second bottom plate and a second side wall, the first bottom plate and the second bottom plate are respectively located on two sides of the axial direction of the stator core, the first side wall is connected to the first bottom plate and extends towards the second bottom plate, the second side wall is connected to the second bottom plate and extends towards the first bottom plate, the inner wall surface of the first side wall is flush with or retracted inside the inner wall surface of the winding slot, and the second side wall covers the inner wall surface of the winding slot and at least a part of the first side wall.

[0007] The stator assembly according to the embodiment of the present utility model has the first bottom plate of the first insulating frame and the second bottom plate of the second insulating frame located on both sides of the stator core in the axial direction respectively. The first side wall is connected to the first bottom plate and extends towards the second bottom plate, and the second side wall is connected to the second bottom plate and extends towards the first bottom plate. The inner wall surface of the first side wall is flush with or retracted inside the inner wall surface of the winding slot of the stator core, and the second side wall covers the inner wall surface of the winding slot and at least part of the first side wall, which can enable the first insulating frame and the second insulating frame to form a plug-in connection, meet the required insulation requirements, and can reduce the space of the winding slot occupied by the first side wall, only the second side wall occupies the space of the winding slot, ensuring the number of turns of the stator winding, being beneficial to improving the power of the motor, or being able to reduce the production cost of the motor under the same power and slot filling rate of the motor. At the same time, the structure of the stator assembly is simple, the manufacturing process is simple, which is beneficial to reducing the manufacturing cost.

[0008] In addition, the stator assembly according to the above embodiment of the present utility model may further have the following additional technical features:

[0009] In the stator assembly according to some embodiments of the present utility model, a first limiting step recessed in a direction away from the winding slot is provided on the stator core, and the end surface of the first side wall abuts against the first limiting step.

[0010] In some embodiments of the present utility model, a second limiting step recessed in a direction away from the winding slot is further provided on the stator core. The first limiting step and the second limiting step are respectively located at both ends of the stator core in the axial direction. A supporting portion is provided on the outer wall surface of the second side wall, and the end of the supporting portion away from the second bottom plate abuts against the second limiting step.

[0011] In some embodiments of the present utility model, the thickness of the first side wall is 0.2 mm - 0.6 mm; and / or, the thickness of the second side wall is 0.2 mm - 0.6 mm.

[0012] In some embodiments of the present utility model, a protruding portion extending in the axial direction of the stator core is provided on the outer wall surface of at least one of the first side wall and the second side wall, and a groove cooperating with the protruding portion is provided on the wall surface of the stator core facing the winding slot.

[0013] In some embodiments of the present utility model, positioning posts are provided on the wall surface of at least one of the first bottom plate and the second bottom plate facing the stator core, and positioning holes cooperating with the positioning posts are provided on the stator core.

[0014] According to some embodiments of the present utility model, a plurality of the stator cores are sequentially connected to form a strip shape, and the stator cores at both ends in the length direction are connected to each other to form a ring shape; or, a plurality of the stator cores are formed into a ring shape.

[0015] According to some embodiments of the present utility model, the insulating frame assemblies are multiple and are arranged at intervals in the circumferential direction of the stator core; or, the first insulating frame is formed into a ring shape and is an integral part; or, the second insulating frame is formed into a ring shape and is an integral part.

[0016] The motor according to an embodiment of the present utility model includes the stator assembly according to the embodiment of the present utility model.

[0017] For the motor according to an embodiment of the present utility model, since the first bottom plate of the first insulating frame and the second bottom plate of the second insulating frame are respectively located on both sides in the axial direction of the stator core, the first side wall is connected to the first bottom plate and extends towards the second bottom plate, the second side wall is connected to the second bottom plate and extends towards the first bottom plate, the inner wall surface of the first side wall is flush with the inner wall surface of the winding groove of the stator core or retracts inside the inner wall surface of the winding groove, and the second side wall covers the inner wall surface of the winding groove and at least part of the first side wall, the first insulating frame and the second insulating frame can be formed into an inserted connection, meeting the required insulation requirements, and the space of the winding groove occupied by the first side wall can be reduced, only the second side wall occupies the space of the winding groove, ensuring the number of turns of the stator winding, which is beneficial to improving the power of the motor, or under the same power and slot filling rate of the motor, the production cost of the motor can be reduced. At the same time, the structure of the stator assembly is simple and the manufacturing process is simple, which is beneficial to reducing the manufacturing cost.

[0018] The air conditioner according to an embodiment of the present utility model includes the motor according to the embodiment of the present utility model.

[0019] For the air conditioner according to an embodiment of the present utility model, since the first bottom plate of the first insulating frame and the second bottom plate of the second insulating frame are respectively located on both sides in the axial direction of the stator core, the first side wall is connected to the first bottom plate and extends towards the second bottom plate, the second side wall is connected to the second bottom plate and extends towards the first bottom plate, the inner wall surface of the first side wall is flush with the inner wall surface of the winding groove of the stator core or retracts inside the inner wall surface of the winding groove, and the second side wall covers the inner wall surface of the winding groove and at least part of the first side wall, the first insulating frame and the second insulating frame can be formed into an inserted connection, meeting the required insulation requirements, and the space of the winding groove occupied by the first side wall can be reduced, only the second side wall occupies the space of the winding groove, ensuring the number of turns of the stator winding, which is beneficial to improving the power of the motor, or under the same power and slot filling rate of the motor, the production cost of the motor can be reduced. At the same time, the structure of the stator assembly is simple and the manufacturing process is simple, which is beneficial to reducing the manufacturing cost.

[0020] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is an exploded view of a stator assembly according to a first embodiment of the present utility model;

[0023] Figure 2 is a schematic structural view of a stator assembly according to a first embodiment of the present utility model, wherein a plurality of the stator cores are formed in a strip shape;

[0024] Figure 3 is Figure 2 an enlarged schematic structural view of the area circled at A in

[0025] Figure 4 is a schematic structural view of a stator assembly according to a first embodiment of the present utility model, wherein a plurality of the stator cores are formed in a ring shape;

[0026] Figure 5 is Figure 4 an enlarged schematic structural view of the area circled at B in

[0027] Figure 6 is an exploded view of a stator assembly according to a second embodiment of the present utility model;

[0028] Figure 7 is a schematic structural view of a stator assembly according to a second embodiment of the present utility model, wherein a plurality of the stator cores are formed in a strip shape;

[0029] Figure 8 is Figure 7 an enlarged schematic structural view of the area circled at C in

[0030] Figure 9 is a schematic structural view of a stator assembly according to a second embodiment of the present utility model, wherein a plurality of the stator cores are formed in a ring shape;

[0031] Figure 10 is Figure 9 an enlarged schematic structural view of the area circled at D in

[0032] Figure 11 is an exploded view of a stator assembly according to a third embodiment of the present utility model;

[0033] Figure 12It is a schematic structural diagram of a stator assembly according to the third embodiment of the present utility model. Among them, a plurality of the stator cores are formed in a strip shape;

[0034] Figure 13 is Figure 12 an enlarged structural diagram of the circled area E in

[0035] Figure 14 It is a schematic structural diagram of a stator assembly according to the third embodiment of the present utility model. Among them, a plurality of the stator cores are formed in a ring shape;

[0036] Figure 15 is Figure 14 an enlarged structural diagram of the circled area F in

[0037] Reference numerals:

[0038] 100. Stator assembly;

[0039] 10. Stator core; 11. Winding groove; 111. First limiting step; 112. Second limiting step; 113. Groove; 114. Positioning hole;

[0040] 20. Insulating frame assembly; 21. First insulating frame; 22. Second insulating frame; 211. First bottom plate; 212. First side wall; 221. Second bottom plate; 222. Second side wall; 223. Support portion;

[0041] 31. Protrusion; 32. Positioning post. Detailed implementation manners

[0042] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0043] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0044] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. The meaning of "a plurality" is two or more. The first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. The first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0045] The stator assembly 100 according to an embodiment of the present utility model will be described below with reference to the accompanying drawings.

[0046] Referring to Figures 1 - 15 As shown, the stator assembly 100 according to an embodiment of the present utility model may include: a stator core 10 and an insulating frame assembly 20.

[0047] Specifically, a plurality (greater than or equal to two) of stator cores 10 are arranged to form a ring shape, and a winding slot 11 is formed between two adjacent stator cores 10. The winding slot 11 is used for placing a stator winding and can meet the required assembly requirements. The insulating frame assembly 20 includes a first insulating frame 21 and a second insulating frame 22. The first insulating frame 21 includes a first bottom plate 211 and a first side wall 212, and the second insulating frame 22 includes a second bottom plate 221 and a second side wall 222. The first bottom plate 211 and the second bottom plate 221 are respectively located on both sides of the axial direction of the stator core 10 (such as Figure 3 the up and down direction shown in the figure). The first side wall 212 is connected to the first bottom plate 211 and extends towards the second bottom plate 221. The second side wall 222 is connected to the second bottom plate 221 and extends towards the first bottom plate 211. The structures of the first insulating frame 21 and the second insulating frame 22 are simple, facilitating processing and manufacturing, and facilitating the cooperation of the first insulating frame 21 and the second insulating frame 22 to meet the required assembly requirements.

[0048] In addition, as Figure 5 , Figure 10 and Figure 15 shown, the inner wall surface of the first side wall 212 is flush with or retracted inside the inner wall surface of the winding slot 11, and the second side wall 222 covers the inner wall surface of the winding slot 11 and at least part of the first side wall 212, so that the first insulating frame 21 and the second insulating frame 22 form an insertion connection, ensuring that the first insulating frame 21 and the second insulating frame 22 insulate the stator core 10 to meet the required insulation requirements.

[0049] Meanwhile, by making the inner wall surface of the first side wall 212 flush with or retracted inside the inner wall surface of the winding groove 11, the space of the winding groove 11 occupied by the first side wall 212 can be reduced, and only the second side wall 222 occupies the space of the winding groove 11. Thus, the space of the winding groove 11 occupied by the insulating frame assembly 20 can be reduced, the area of the winding groove 11 can be ensured, so that the stator winding can wind more turns, which is beneficial to improving the power of the motor. Or when the motor has the same power and slot filling rate, the height of the stator core 10 can be reduced, thereby reducing the production cost of the motor. And compared with the related art where an ultra-thin insulating slot paper is inserted between the first insulating frame and the second insulating frame to reduce the space occupied by the winding groove, the number of structures of the stator assembly 100 can be reduced, making the structure simple and the manufacturing process simple, which is beneficial to reducing the manufacturing cost.

[0050] It should be noted that the "inner wall surface of the first side wall 212" and the "inner wall surface of the second side wall 222" are both the wall surfaces facing the inside of the winding groove 11, and the "outer wall surface of the first side wall 212" and the "outer wall surface of the second side wall 222" are both the wall surfaces facing the bottom wall of the winding groove 11. In addition, for the convenience of description, the orientations such as "up" and "down" in the present utility model are based on the orientation relationship shown in the drawings, rather than the limitation of the orientation in the actual application process.

[0051] In some embodiments, the length of the second side wall 222 covering the first side wall 212 along the axial direction of the stator core 10 can be set according to actual conditions to meet the requirements of different creepage distances and ensure the use safety of the motor.

[0052] According to the stator assembly 100 of the embodiment of the present utility model, the first bottom plate 211 of the first insulating frame 21 and the second bottom plate 221 of the second insulating frame 22 are respectively located on both sides of the stator core 10 in the axial direction. The first side wall 212 is connected to the first bottom plate 211 and extends towards the second bottom plate 221, and the second side wall 222 is connected to the second bottom plate 221 and extends towards the first bottom plate 211. The inner wall surface of the first side wall 212 is flush with or retracted inside the inner wall surface of the winding groove 11 of the stator core 10, and the second side wall 222 covers the inner wall surface of the winding groove 11 and at least part of the first side wall 212, which can enable the first insulating frame 21 and the second insulating frame 22 to form a plug-in connection, meet the required insulation requirements, and can reduce the space of the winding groove 11 occupied by the first side wall 212. Only the second side wall 222 occupies the space of the winding groove 11, ensuring the number of turns of the stator winding, which is beneficial to improving the power of the motor. Or when the motor has the same power and slot filling rate, the production cost of the motor can be reduced. At the same time, the structure of the stator assembly 100 is simple and the manufacturing process is simple, which is beneficial to reducing the manufacturing cost.

[0053] In some embodiments of the present utility model, such asFigure 3 , Figure 5 , Figure 8 and Figure 10 As shown in Figure 10 , a first limiting step 111 recessed in a direction away from the winding slot 11 is provided on the stator core 10. The end face of the first side wall 212 abuts against the first limiting step 111. The first limiting step 111 can avoid the wall thickness of the first side wall 212, so that the inner wall surface of the first side wall 212 is flush with the inner wall surface of the winding slot 11 or retracts inside the inner wall surface of the winding slot 11. Moreover, the structure of the stator core 10 is simple, which is convenient for processing and manufacturing. At the same time, it can reduce the loss of the electromagnetic efficiency of the stator core 10 and ensure the working efficiency of the motor.

[0054] It can be understood that the stator core 10 is formed by stacking a plurality of laminations. The first limiting step 111 is formed into a structure recessed in a direction away from the winding slot 11 by limiting the sizes of the plurality of laminations differently.

[0055] According to some embodiments of the present invention, as Figure 3 and Figure 5 shown, a second limiting step 112 recessed in a direction away from the winding slot 11 is further provided on the stator core 10. The first limiting step 111 and the second limiting step 112 are respectively located at two ends of the stator core 10 in the axial direction. Thus, when the insulating frame assembly 20 is assembled with the stator core 10, it is not necessary to distinguish the assembly direction of the stator core 10, which is beneficial to improving the assembly efficiency and reducing the process cost.

[0056] In addition, as Figure 5 shown, a supporting portion 223 is provided on the outer wall surface of the second side wall 222. One end of the supporting portion 223 away from the second bottom plate 221 abuts against the second limiting step 112, which can further increase the contact area between the second side wall 222 and the stator core 10 and ensure reliable assembly of the second insulating frame 22 and the stator core 10.

[0057] It can be understood that the stator core 10 is formed by stacking a plurality of laminations. The second limiting step 112 is formed into a structure recessed in a direction away from the winding slot 11 by limiting the sizes of the plurality of laminations differently.

[0058] In some embodiments of the present invention, as Figure 13 and Figure 15 shown, the first side wall 212 is supported on a side of the stator core 10 in the axial direction away from the second side wall 222 (for example Figure 15The upper side shown in [description] can meet the support requirements for the first insulating frame 21, ensure the connection between the first insulating frame 21 and the stator core 10, and facilitate making the inner wall surface of the first side wall 212 flush with or retracted inside the inner wall surface of the winding slot 11. The structure of the stator core 10 is simple and convenient for processing and manufacturing.

[0059] In some embodiments, as Figure 5 shown, the thickness of the first side wall 212 is 0.2 mm - 0.6 mm, that is, the thickness of the first side wall 212 is T1 and satisfies 0.2 mm ≤ T1 ≤ 0.6 mm. Within the above size range, the structural filling performance and mechanical properties of the first insulating frame 21 can be satisfied, meeting the required usage requirements, ensuring high structural strength, and being able to avoid excessive weight, realizing the miniaturization requirements of the motor, which is beneficial to reducing production costs. For example, in some specific embodiments, the thickness of the first side wall 212 can be 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, etc.

[0060] In some embodiments, when selecting the thickness dimensions of multiple first side walls 212, it is appropriate to select a thinner wall thickness of the first side wall 212, which can reduce the use of materials, is beneficial to reducing production costs, and can also reduce the weight, realizing the miniaturization requirements of the motor.

[0061] In some embodiments, as Figure 5 shown, the thickness of the second side wall 222 is 0.2 mm - 0.6 mm, that is, the thickness of the second side wall 222 is T2 and satisfies 0.2 mm ≤ T2 ≤ 0.6 mm. Within the above size range, the structural filling performance and mechanical properties of the second insulating frame 22 can be satisfied, meeting the required usage requirements, ensuring high structural strength, and being able to avoid excessive weight, realizing the miniaturization requirements of the motor, which is beneficial to reducing production costs. For example, in some specific embodiments, the thickness of the second side wall 222 can be 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, etc.

[0062] In some embodiments, when selecting the thickness dimensions of multiple second side walls 222, it is appropriate to select a thinner wall thickness of the second side wall 222, which can reduce the use of materials, is beneficial to reducing production costs, and can also reduce the weight, realizing the miniaturization requirements of the motor.

[0063] According to some embodiments of the present invention, as Figure 13As shown, a convex portion 31 is provided on the outer wall surface of at least one of the first side wall 212 and the second side wall 222. That is, the convex portion 31 may be provided on the outer wall surface of the first side wall 212, or the convex portion 31 may be provided on the outer wall surface of the second side wall 222, or the convex portion 31 may be provided on the outer wall surfaces of both the first side wall 212 and the second side wall 222. The convex portion 31 extends along the axial direction of the stator core 10. Through the convex portion 31, the injection molding filling channels of the first side wall 212 and / or the second side wall 222 can be enhanced, avoiding the problem that the first side wall 212 and / or the second side wall 222 are relatively thin and easily cause unreliable injection molding shapes. Thus, the injection molding filling channels of the first insulating frame 21 and / or the second insulating frame 22 can be enhanced, ensuring that the filling of the first insulating frame 21 and / or the second insulating frame 22 is full and the structural shape is reliable. In addition, a groove 113 is provided on the wall surface of the stator core 10 facing the winding slot 11. The groove 113 cooperates with the convex portion 31, enabling the stator core 10 to avoid the convex portion 31 and preventing problems such as interference, ensuring assembly reliability.

[0064] It can be understood that the stator core 10 is formed by stacking a plurality of laminations. By defining different dimensions for the plurality of laminations, a groove 113 is formed on the wall surface of the winding slot 11.

[0065] In some embodiments of the present invention, as Figures 11 - 15 shown, a positioning post 32 is provided on the wall surface of at least one of the first bottom plate 211 and the second bottom plate 221 facing the stator core 10. That is, the positioning post 32 is provided on the wall surface of the first bottom plate 211 facing the stator core 10, or the positioning post 32 is provided on the wall surface of the second bottom plate 221 facing the stator core 10, or the positioning post 32 is provided on the wall surfaces of both the first bottom plate 211 and the second bottom plate 221 facing the stator core 10. A positioning hole 114 is provided on the stator core 10. The positioning hole 114 cooperates with the positioning post 32. Thus, the cooperation between the positioning hole 114 and the positioning post 32 can guide and position the installation of the first insulating frame 21 and / or the second insulating frame 22 and the stator core 10, which is beneficial to reducing the difficulty of positioning and matching between the first insulating frame 21 and / or the second insulating frame 22 and the stator core 10. During assembly, with the help of the positioning post 32 and the positioning hole 114, the rapid positioning and installation of the first insulating frame 21 and / or the second insulating frame 22 and the stator core 10 can be realized, which is beneficial to improving the assembly efficiency.

[0066] In addition, by using the cooperation between the positioning post 32 and the positioning hole 114, the assembly accuracy of the first insulating frame 21 and / or the second insulating frame 22 and the stator core 10 can be improved, and the contact area between the first insulating frame 21 and / or the second insulating frame 22 and the stator core 10 can be increased, ensuring that the first insulating frame 21 and / or the second insulating frame 22 are fixed reliably on the stator core 10 and are not easily detached.

[0067] According to some embodiments of the present utility model, as Figures 1 - 4 , Figures 6 - 9 , Figures 11 - 14 shown, a plurality of stator cores 10 are connected in sequence to form a strip shape. The strip-shaped stator cores 10 facilitate the winding of the stator winding on the stator cores 10, which is beneficial to improving the assembly efficiency, can increase the full rate of the winding slots 11, and can improve the material utilization rate of the stator cores 10. In addition, the stator cores 10 at both ends in the length direction are connected to each other, so that the plurality of stator cores 10 form a ring shape, meeting the shape requirements of the stator.

[0068] Alternatively, a plurality of stator cores 10 are formed into a ring shape, that is, the plurality of stator cores 10 directly form a ring structure without operations such as bending. This can improve the connection strength of the plurality of stator cores 10. The roundness of the ring formed by the plurality of stator cores 10 is good, which can reduce the vibration and noise of the motor, and is convenient for processing and manufacturing, which is beneficial to reducing the production cost.

[0069] In some embodiments of the present utility model, as Figures 1 - 15 shown, there are a plurality (greater than or equal to two) of insulating frame assemblies 20, that is, the first insulating frame 21 and the second insulating frame 22 are in one-to-one correspondence. The plurality of insulating frame assemblies 20 are arranged at intervals along the circumferential direction of the stator core 10. By covering the required positions of the stator core 10 with the plurality of insulating frame assemblies 20, it is convenient to adjust the relative positions of the plurality of insulating frame assemblies 20, which can reduce the assembly difficulty and is beneficial to improving the assembly efficiency.

[0070] In some embodiments, as Figures 1 - 15 shown, the insulating frame assembly 20 can cover the adjacent sides of two adjacent winding slots 11 close to each other, ensuring reliable covering of the plurality of winding slots 11 by the plurality of insulating frames, meeting the required insulation requirements, and ensuring reliable insulation.

[0071] Alternatively, the first insulating frame 21 is formed into a ring shape and is an integral part, which makes the manufacturing of the first insulating frame 21 simple, ensures high connection strength, and reduces the assembly process. This makes the installation of the first insulating frame 21 on the stator core 10 convenient, which is beneficial to improving the production efficiency. For example, this first insulating frame 21 can be applied to the stator core 10 formed into a ring shape.

[0072] Alternatively, the second insulating frame 22 is formed into a ring shape and is an integral part, which makes the manufacturing of the second insulating frame 22 simple, ensures high connection strength, and reduces the assembly process. This makes the installation of the second insulating frame 22 on the stator core 10 convenient, which is beneficial to improving the production efficiency. For example, this second insulating frame 22 can be applied to the stator core 10 formed into a ring shape.

[0073] The motor according to an embodiment of the present utility model includes a stator assembly 100 according to an embodiment of the present utility model. Since the stator assembly 100 according to an embodiment of the present utility model has the above-mentioned beneficial technical effects, in the motor according to an embodiment of the present utility model, the first bottom plate 211 of the first insulating frame 21 and the second bottom plate 221 of the second insulating frame 22 are respectively located on both sides of the stator core 10 in the axial direction. The first side wall 212 is connected to the first bottom plate 211 and extends toward the second bottom plate 221. The second side wall 222 is connected to the second bottom plate 221 and extends toward the first bottom plate 211. The inner wall surface of the first side wall 212 is flush with or retracted inside the inner wall surface of the winding groove 11 of the stator core 10. The second side wall 222 covers the inner wall surface of the winding groove 11 and at least part of the first side wall 212, which can enable the first insulating frame 21 and the second insulating frame 22 to form a plug-in connection, meet the required insulation requirements, and can reduce the space of the winding groove 11 occupied by the first side wall 212. Only the second side wall 222 occupies the space of the winding groove 11, ensuring the number of turns of the stator winding, which is beneficial to improving the power of the motor. Or when the motor has the same power and slot filling rate, it can reduce the production cost of the motor. At the same time, the structure of the stator assembly 100 is simple and the manufacturing process is simple, which is beneficial to reducing the manufacturing cost.

[0074] In some embodiments, the stator assembly 100 according to an embodiment of the present utility model is applied to a motor. By making the inner wall surface of the first side wall 212 flush with or retracted inside the inner wall surface of the winding groove 11, the space of the winding groove 11 occupied by the first side wall 212 can be reduced. Only the second side wall 222 occupies the space of the winding groove 11, so that the space of the winding groove 11 occupied by the insulating frame assembly 20 can be reduced, and the area of the winding groove 11 can be ensured, enabling the stator winding to wind more turns, which is beneficial to improving the power of the motor. Thus, while achieving high power of the motor, it is convenient to meet the miniaturization requirement of the motor, and thus can meet the requirements of high energy efficiency and low cost.

[0075] The air conditioner according to an embodiment of the present invention includes a motor according to an embodiment of the present invention. Since the motor according to an embodiment of the present invention has the above beneficial technical effects, in the air conditioner according to an embodiment of the present invention, the first bottom plate 211 of the first insulating frame 21 and the second bottom plate 221 of the second insulating frame 22 are respectively located on both sides of the stator core 10 in the axial direction. The first side wall 212 is connected to the first bottom plate 211 and extends toward the second bottom plate 221. The second side wall 222 is connected to the second bottom plate 221 and extends toward the first bottom plate 211. The inner wall surface of the first side wall 212 is flush with or retracted inside the inner wall surface of the winding slot 11 of the stator core 10. The second side wall 222 covers the inner wall surface of the winding slot 11 and at least part of the first side wall 212, which can enable the first insulating frame 21 and the second insulating frame 22 to form a plug-in connection, meet the required insulation requirements, and can reduce the space of the winding slot 11 occupied by the first side wall 212. Only the second side wall 222 occupies the space of the winding slot 11, ensuring the number of turns of the stator winding, which is beneficial to improving the power of the motor. Or when the motor has the same power and slot filling rate, it can reduce the production cost of the motor. At the same time, the structure of the stator assembly 100 is simple and the manufacturing process is simple, which is beneficial to reducing the manufacturing cost.

[0076] The other components and operations of the stator assembly 100, the motor and the air conditioner according to an embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0077] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0078] In the description of this specification, the descriptions referring to terms such as "embodiment", "specific embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A stator assembly, characterized in that: include: A stator core, wherein a plurality of stator cores are arranged in a ring shape, and a winding slot is formed between two adjacent stator cores; An insulation frame assembly, the insulation frame assembly comprising a first insulation frame and a second insulation frame, the first insulation frame comprising a first bottom plate and a first side wall, the second insulation frame comprising a second bottom plate and a second side wall, the first bottom plate and the second bottom plate are respectively located on both sides of the axial direction of the stator core, the first side wall is connected to the first bottom plate and extends toward the second bottom plate, the second side wall is connected to the second bottom plate and extends toward the first bottom plate, the inner wall surface of the first side wall is flush with the inner wall surface of the winding groove or is retracted from the inner wall surface of the winding groove, and the second side wall covers the inner wall surface of the winding groove and at least a portion of the first side wall.

2. The stator assembly according to claim 1, characterized in that The stator core is provided with a first limiting step which is recessed in a direction away from the winding slot, and the end surface of the first side wall abuts against the first limiting step.

3. The stator assembly according to claim 2, characterized in that: The stator core is also provided with a second limiting step recessed in a direction away from the winding slot, the first limiting step and the second limiting step are respectively located at two ends of the stator core in the axial direction, a supporting portion is provided on the outer wall surface of the second side wall, and one end of the supporting portion away from the second bottom plate abuts against the second limiting step.

4. The stator assembly according to claim 1, characterized in that: The thickness of the first side wall is 0.2 mm-0.6 mm; And / or, the thickness of the second side wall is 0.2 mm-0.6 mm.

5. The stator assembly according to claim 1, characterized in that A protrusion extending in the axial direction of the stator core is provided on the outer wall surface of at least one of the first side wall and the second side wall, and a groove matching with the protrusion is provided on the wall surface of the stator core facing the winding slot.

6. The stator assembly according to claim 1, characterized in that A positioning column is provided on a wall surface of at least one of the first bottom plate and the second bottom plate facing the stator core, and a positioning hole matched with the positioning column is provided on the stator core.

7. The stator assembly according to claim 1, characterized in that The plurality of stator cores are connected in sequence to form a strip shape, and the stator cores at both ends in the length direction are connected to each other to form a ring shape; Alternatively, the plurality of stator cores are formed into a ring shape.

8. The stator assembly according to claim 1, characterized in that The insulating frame assembly is a plurality of components spaced apart along the circumferential direction of the stator core; Or, the first insulating frame is formed in a ring shape and is an integral piece; Alternatively, the second insulating frame is formed in a ring shape and is an integral piece.

9. A motor, characterized in that: Comprising a stator assembly according to any one of claims 1-8.

10. An air conditioner, characterized in that: Comprising an electric machine according to claim 9.

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