Stator assembly, motor and washing apparatus

Abstract

The application discloses a kind of stator assembly, motor and washing equipment, belong to motor technical field, wherein stator assembly includes stator core, insulating frame and multiphase winding;Insulating frame is installed to stator core, and multiphase winding is wound on the insulating frame, and the multiple coils of winding are arranged along the circumference of stator core, and the adjacent coils in the same phase winding are connected by cross wire, so that the coils of each phase winding are uniformly distributed;By setting multiple limiting parts on the insulating frame, the cross wire is limited along the radial direction of the stator core using the limiting part, so that the position of the cross wire is limited, suitable for stator assembly using strip or block stator core, the stator assembly is curled into a ring after winding is completed, the cross wire can be tensioned by the limitation of the limiting part, so that the cross wire is not easy to loosen, reducing the situation that the cross wire is separated from the insulating frame, improving the stability of the winding, and the motor runs more reliably.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, in particular to a stator assembly, an electric machine and a washing equipment. BACKGROUND

[0002] In order to improve the slot fill factor of the electric machine, the stator assembly adopts a strip-shaped or block-shaped stator core, and the winding is first wound in a straight expansion mode, and then the stator core is curled into a ring shape. Since there is a cross wire between adjacent coils of the winding, the distance between the two ends of the cross wire after the stator core is curled is less than the length of the cross wire when the stator core is in a straight shape. Therefore, the cross wire after curling will be loose and easily separated from the insulation frame, reducing the stability of the winding. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a stator assembly capable of limiting the cross wire along the radial direction of the stator assembly, so that the cross wire is not easily loose and separated from the insulation frame, and is more stable and reliable.

[0004] The present application also provides an electric machine and a washing equipment comprising the above stator assembly.

[0005] The stator assembly according to the first aspect of the present application comprises a stator core, an insulation frame and a multi-phase winding. The insulation frame is arranged on the stator core. The multi-phase winding is wound on the insulation frame. Each phase of the winding comprises a plurality of coils. The plurality of coils are arranged at intervals along the circumferential direction of the stator core. The coils in each phase of the winding are connected by a cross wire. The cross wire is arranged along the circumferential direction of the stator core. The insulation frame is provided with a plurality of limiting portions. The plurality of limiting portions are arranged at intervals along the circumferential direction of the stator core. The limiting portions are used to limit the cross wire along the radial direction of the stator core.

[0006] The stator assembly according to the present application has at least the following beneficial effects:

[0007] The insulation frame is mounted on the stator core. The multi-phase winding is wound on the insulation frame. The plurality of coils of the winding are arranged at intervals along the circumferential direction of the stator core. The adjacent coils in the same phase of the winding are connected by a cross wire. The cross wire is arranged along the circumferential direction of the stator core, so that the coils of each phase of the winding are uniformly distributed. A plurality of limiting portions are arranged on the insulation frame. The limiting portions are used to limit the cross wire along the radial direction of the stator core, so that the position of the cross wire is limited. The stator assembly is suitable for a stator assembly with a strip-shaped or block-shaped stator core. After the winding is completed, the stator assembly is curled into a ring shape. The limiting portions can tension the cross wire, so that the cross wire is not easily loose. The cross wire is less likely to separate from the insulation frame, improving the stability of the winding and making the electric machine more reliable.

[0008] According to some embodiments of the present application, the plurality of limiting portions are a plurality of limiting arms formed on the insulating frame, one end of the limiting arm is connected with the insulating frame, and the other end is arranged along the height direction of the stator core, and the wall surface of the limiting arm away from the winding is in abutment with the cross wire.

[0009] According to some embodiments of the present application, the wall surface is provided with a first protrusion, and the first protrusion is located at one end of the limiting arm away from the insulating frame.

[0010] According to some embodiments of the present application, the wall surface is provided with a second protrusion, and the second protrusion is arranged in a spaced manner along the height direction of the limiting arm, and the cross wire is located between the first protrusion and the second protrusion.

[0011] According to some embodiments of the present application, the first protrusion and the second protrusion are arranged in a staggered manner along the height direction of the limiting arm.

[0012] According to some embodiments of the present application, one end of the limiting arm connected with the insulating frame is provided with a first wire hanging portion, and the other end of the limiting arm is provided with a second wire hanging portion, and the second wire hanging portion is arranged along the circumferential direction of the stator core; one end of the cross wire is bent to form a first wire segment, and the other end of the cross wire is bent to form a second wire segment, and the first wire segment is in abutment with the first wire hanging portion of one of the limiting arms, and the second wire segment is in abutment with the second wire hanging portion of the other limiting arm.

[0013] According to some embodiments of the present application, at least one of the limiting arms is located between the first wire segment and the second wire segment, and is used for limiting the wire body between the first wire segment and the second wire segment.

[0014] According to some embodiments of the present application, the insulating frame comprises a plurality of frame units, and the plurality of frame units are arranged along the circumferential direction of the stator core, each of the frame units is provided with the limiting arm, the first protrusion and the second protrusion are arranged close to the second wire hanging portion, the second wire hanging portion is arranged towards the adjacent frame unit, and the first protrusion, the second protrusion and the frame unit are arranged in a staggered manner along the height direction of the stator core.

[0015] According to some embodiments of the present application, the frame unit is provided with a wire winding groove and a boss, the boss is located on the side of the frame unit away from the wire winding groove, and one end of the limiting arm close to the wire winding groove is connected with the boss.

[0016] According to some embodiments of the present application, the insulating frame, the boss and the limiting arm are integrally formed.

[0017] The motor according to the second aspect of the present application comprises the stator assembly according to the first aspect of the present application.

[0018] The motor according to the present application has at least the following beneficial effects:

[0019] The motor applies the stator assembly according to the above embodiments, and limits the cross wire along the radial direction of the stator core by the limiting part. After the winding is completed, the stator assembly is curled into a ring shape. The cross wire can be tensioned by the limiting of the limiting part, so that the cross wire is not prone to looseness, the situation that the cross wire is separated from the insulation frame is reduced, the stability of the winding is improved, and the motor operates more reliably. The motor is suitable for washing equipment such as washing machines.

[0020] The washing equipment according to the third aspect of the present application comprises the motor according to the second aspect of the present application.

[0021] The washing equipment according to the present application has at least the following beneficial effects:

[0022] The washing equipment applies the motor according to the above embodiments. In the stator assembly, the cross wire is limited along the radial direction of the stator core by the limiting part. After the winding is completed, the stator assembly is curled into a ring shape. The cross wire can be tensioned by the limiting of the limiting part, so that the cross wire is not prone to looseness, the situation that the cross wire is separated from the insulation frame is reduced, the stability of the winding is improved, and the motor operates more reliably.

[0023] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structure schematic diagram of a straight state of a stator assembly according to an embodiment of the present application;

[0025] Figure 2 is a structure schematic diagram of a stator assembly curled into a ring shape according to an embodiment of the present application;

[0026] Figure 3 is a structure schematic diagram of a stator assembly in Figure 1 ;

[0027] Figure 4 is a structure schematic diagram of a stator assembly in Figure 2 ;

[0028] Figure 5 is a structure schematic diagram of a frame unit and a limiting arm according to an embodiment of the present application;

[0029] Figure 6 is a structure schematic diagram of a frame unit and a limiting arm according to another embodiment of the present application.

[0030] Reference signs:

[0031] Stator assembly 1000;

[0032] Stator core 100;

[0033] Insulating frame 200;Frame unit 210;First limiting plate 211;Second limiting plate 212;Winding slot 213;Boss 214;Clamping groove 215;

[0034] Winding 300;Cross wire 310;First wire segment 311;Second wire segment 312;

[0035] Limiting portion 400;Limiting arm 410;First protrusion 411;Second protrusion 412;First wire hanging portion 413;Second wire hanging portion 414. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described in detail below with reference to the accompanying 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 accompanying drawings are exemplary only, and are for the purpose of explanation of the present application, and are not to be understood as limiting the present application.

[0037] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms up, down, axial, circumferential, radial, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In the description of the present application, if there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the sequence of technical features indicated.

[0039] In the description of the present application, it needs to be noted that the words such as setting, mounting, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0040] The technical solutions of the present application will be described below in conjunction with the drawings. Obviously, the following described embodiments are part of the embodiments of the present application, not all embodiments.

[0041] Reference Figure 1 and Figure 2As shown, the embodiment of the present application proposes a stator assembly 1000, comprising a stator core 100, an insulation frame 200 and a winding 300, the insulation frame 200 is installed on the stator core 100, the embodiment adopts a strip-shaped stator core 100, the winding 300 is a three-phase winding 300, the three-phase winding 300 is wound on the insulation frame 200, and the winding 300 can be separated from the stator core 100 through the insulation frame 200, so that better insulation performance is ensured. The stator assembly 1000 can be connected end to end by curling to obtain a ring-shaped stator assembly 1000, wherein Figure 1 As shown, the stator assembly 1000 is in a straight structure, Figure 2 The stator assembly 1000 is bent to form a ring structure.

[0042] Referring to Figure 1 and Figure 2 As shown, the insulation frame 200 of the embodiment of the present application comprises a plurality of frame units 210, the plurality of frame units 210 are embedded in the stator core 100, each phase winding 300 comprises a plurality of coils, and the plurality of coils in each phase winding 300 are arranged in a circumferential direction of the stator core 100, and each frame unit 210 is wound with a coil. Since the adjacent coils in the same phase winding 300 are separated, the winding 300 is provided with a plurality of cross wires 310, and the plurality of cross wires 310 are arranged in the circumferential direction of the stator core 100, and the cross wires 310 are used to connect the coils, so that the plurality of coils can be connected to form the winding 300.

[0043] Taking a specific example for description, the three-phase winding 300 of the embodiment is composed of twelve coils, each phase winding 300 comprises four coils, four coils in series to form an A-phase winding, another four coils in series to form a B-phase winding, and the remaining four coils in series to form a C-phase winding, and the ends of the three-phase winding 300 are connected to form a star connection. It can be understood that the four coils in the A-phase winding are connected in sequence through the cross wires 310, the four coils in the B-phase winding are connected in sequence through the cross wires 310, the four coils in the C-phase winding are connected in sequence through the cross wires 310, and the cross wires 310 of each phase winding 300 are distributed in the circumferential direction of the stator core 100. Herein, the number of coils of the three-phase winding 300 is not limited to twelve, but can also be nine, fifteen or more, which is selected according to application requirements. Compared with a single-phase motor, a three-phase motor has the advantages of large power, stable operation, long service life and the like, and can better meet the needs of a washing machine and has better washing effect.

[0044] Referring to Figure 1As shown, it can be understood that the stator core 100 is wound with the winding 300 in a straight state, and after winding is completed, the stator core 100 is rolled to obtain the annular stator assembly 1000. It is considered that the length of the cross wire 310 after the stator core 100 is rolled is less than the length of the cross wire 310 when the stator core 100 is in a straight state, so that the cross wire 310 after rolling is loose and easy to separate from the insulation frame 200, thereby reducing the stability of the winding 300.

[0045] In order to solve the above problems, referring to Figure 3 and Figure 4 As shown, the insulation frame 200 is provided with a plurality of limiting portions 400, and the plurality of limiting portions 400 are arranged at intervals along the circumferential direction of the stator core 100. The limiting portion 400 can be arranged near the lead-out position of the cross wire 310 of the winding 300, or can be arranged along the wire direction of the cross wire 310. The limiting portion 400 can be a wire clamping groove, a wire clamping column or the like. By using the limiting portion 400, the cross wire 310 can be limited along the radial direction of the stator core 100, so that the position of the cross wire 310 is limited. In this way, when the winding 300 is completed and the stator assembly 1000 is rolled into a ring shape, the movement of the cross wire 310 along the radial direction can be limited by the limiting portion 400, the arc radius of the cross wire 310 when bending can be increased, the cross wire 310 can be tensioned, the cross wire 310 is not easy to loosen, the situation that the cross wire 310 separates from the insulation frame 200 is reduced, the stability of the winding 300 is improved, and the motor runs more reliably.

[0046] Referring to Figure 3 As shown, the limiting portion 400 of the embodiment of the application is a limiting arm 410, which is formed at the upper end of the insulation frame 200. One end of the limiting arm 410 is connected with the insulation frame 200, and the other end extends upward along the height direction of the stator core 100. After the cross wire 310 is led out from the winding 300, it is wound on the limiting arm 410. The wall surface of the limiting arm 410 away from the winding 300 abuts against the cross wire 310, so that the cross wire 310 can be limited outward along the radial direction. The height direction of the stator core 100 is the upward and downward direction as shown in Figure 3 .

[0047] Referring to Figure 5 As shown, it can be understood that each frame unit 210 in the embodiment is provided with a limiting arm 410. Taking one of the frame units 210 as an example, the frame unit 210 near one side of the center of the stator core 100 is provided with a wire winding groove 213 for winding the coil. The limiting arm 410 is located on one side of the frame unit 210. After the cross wire 310 of the coil on the frame unit 210 is led out, it is limited by the limiting arm 410, and then it is wired towards the other frame unit 210.

[0048] In combination with Figure 3It can be understood that the cross-wire 310 is led out from the coil of one frame unit 210 and crosses one or more frame units 210, Figure 3 In the shown example, the cross-wire 310 crosses two frame units 210, and the specific wiring manner is determined according to the number of the winding 300. Since each frame unit 210 in the embodiment is provided with the limiting arm 410, when the cross-wire 310 crosses the frame units 210, the limiting arm 410 on the corresponding position of the frame unit 210 can limit the cross-wire 310.

[0049] In combination with Figure 4 It can be understood that the two ends and the middle position of the cross-wire 310 are respectively limited by the limiting arm 410, and when the stator assembly 1000 is bent, due to the limitation of the limiting arm 410 on the cross-wire 310 in the radial direction, the cross-wire 310 bends together with the stator core 100, so as to increase the arc radius when the cross-wire 310 is bent, so that the cross-wire 310 is in a tension state, and the cross-wire 310 is not easy to loosen, and further, the cross-wire 310 is not easy to be separated from the insulating frame 200, that is, the limiting arm 410 has the effect of tensioning the cross-wire 310, and the limiting arm 410 can also be understood as a tensioning arm.

[0050] Referring to Figure 5 In the embodiment of the application, the wall surface of the limiting arm 410 away from the winding 300 is provided with a first protrusion 411, and the first protrusion 411 is located at one end of the limiting arm 410 away from the insulating frame 200, that is, the first protrusion 411 is arranged at the upper end of the limiting arm 410, and the first protrusion 411 protrudes from the wall surface; when the cross-wire 310 abuts against the wall surface of the limiting arm 410, the cross-wire 310 can be further limited by the first protrusion 411, so as to prevent the cross-wire 310 from being separated from the upper end of the limiting arm 410.

[0051] It should be noted that the height of the first protrusion 411 protruding from the wall surface needs to be greater than the wire diameter of the cross-wire 310, so as to ensure that the cross-wire 310 will not pass over the first protrusion 411 and be separated from the limiting arm 410, and the specific height is set according to actual application requirements. Figure 5 In the shown embodiment, the first protrusion 411 is one, which is only an example, and the number of the first protrusion 411 can also be two or more, and the two or more first protrusions 411 can be arranged at intervals along the upper end edge of the limiting arm 410.

[0052] Referring to Figure 5As shown, in the embodiment of the present application, the wall surface of the limiting arm 410 away from the winding 300 is also provided with a second protrusion 412, and the second protrusion 412 is arranged in the height direction of the limiting arm 410 and is spaced apart from the first protrusion 411, so that the cross-wire 310 can be located between the first protrusion 411 and the second protrusion 412. The second protrusion 412 can be arranged close to the bottom end of the limiting arm 410, and the second protrusion 412 is protruded from the wall surface, and the height of the second protrusion 412 protruding from the wall surface needs to be greater than the diameter of the cross-wire 310, so as to ensure that the cross-wire 310 cannot pass the second protrusion 412, and through the cooperation of the first protrusion 411 and the second protrusion 412, the movement of the cross-wire 310 in the height direction of the limiting arm 410 can be limited, so as to ensure that the cross-wire 310 is in a tension state, and the risk of the cross-wire 310 being separated from the limiting arm 410 is greatly reduced.

[0053] It should be noted that the first protrusion 411, the second protrusion 412 and the limiting arm 410 are integrally injection molded, which is convenient for processing and molding, and is conducive to reducing the cost.

[0054] As shown in FIG. 5, in the embodiment, the first protrusion 411 and the second protrusion 412 are arranged in the height direction of the limiting arm 410, that is, the first protrusion 411 will not be located directly above the second protrusion 412, and at the same time, the second protrusion 412 will not be located directly below the first protrusion 411, which is convenient for demolding in the up-down direction of the injection mold, and the mold is easier to realize and the manufacturing cost is lower.

[0055] It should be noted that since the winding 300 is also provided with a lead-out wire, the lead-out wire does not need to cross the frame unit 210, and the lead-out wire can be led out from one of the coils, then pass through the limiting arm 410 for limiting, and then be connected to the other adjacent coil, that is, the limiting arm 410 can limit the cross-wire 310 and the lead-out wire which does not need to cross, and the distance between the first protrusion 411 and the second protrusion 412 can meet the size requirement of accommodating the cross-wire 310 and the lead-out wire, so as to avoid the cross-wire 310 and the lead-out wire from being separated from the limiting arm 410.

[0056] Referring to Figure 4 As shown, in the embodiment of the present application, it can be understood that since the two ends of the cross-wire 310 need to be bent and connected to the coils at the corresponding positions, after the winding 300 is completed, one end of the cross-wire 310 is bent to form a first wire segment 311, and the other end of the cross-wire 310 is bent to form a second wire segment 312.

[0057] Combined with Figure 5It can be understood that the end of the limiting arm 410 connected with the frame unit 210 is provided with the first wire hanging part 413, and the other end of the limiting arm 410 is provided with the second wire hanging part 414, which extends along the circumference of the stator core 100. Specifically, the second wire hanging part 414 extends to the outside of the frame unit 210, so that the second wire hanging part 414 can be close to the adjacent frame unit 210. When the cross wire 310 is wound, the first wire segment 311 of the cross wire 310 is drawn out from the adjacent limiting arm 410, and the first wire segment 311 abuts against the first wire hanging part 413. After the cross wire 310 is crossed, the second wire segment 312 abuts against the second wire hanging part 414 of the limiting arm 410 on the other frame unit 210. That is, the cross wire 310 starts from the first wire hanging part 413 of one of the limiting arms 410 and ends at the second wire hanging part 414 of the other limiting arm 410, so that the first wire segment 311 and the second wire segment 312 are both limited. In addition, only as an example, the cross wire 310 can also start from the second wire hanging part 414 and end at the first wire hanging part 413 of the other limiting arm 410, which is selected according to the specific winding mode of the winding 300.

[0058] It should be noted that in the embodiment, the limiting arm 410 has a plate structure, and the first wire hanging part 413 and the second wire hanging part 414 can be understood as two side edges of the plate along the circumference of the stator core 100, both of which are provided with chamfers to avoid damage to the cross wire 310 when limiting.

[0059] Referring to Figure 4 It can be understood that the end of the limiting arm 410 connected with the frame unit 210 is provided with the first wire hanging part 413, and the other end of the limiting arm 410 is provided with the second wire hanging part 414, which extends along the circumference of the stator core 100. Specifically, the second wire hanging part 414 extends to the outside of the frame unit 210, so that the second wire hanging part 414 can be close to the adjacent frame unit 210. When the cross wire 310 is wound, the first wire segment 311 of the cross wire 310 is drawn out from the adjacent limiting arm 410, and the first wire segment 311 abuts against the first wire hanging part 413. After the cross wire 310 is crossed, the second wire segment 312 abuts against the second wire hanging part 414 of the limiting arm 410 on the other frame unit 210. That is, the cross wire 310 starts from the first wire hanging part 413 of one of the limiting arms 410 and ends at the second wire hanging part 414 of the other limiting arm 410, so that the first wire segment 311 and the second wire segment 312 are both limited. In addition, only as an example, the cross wire 310 can also start from the second wire hanging part 414 and end at the first wire hanging part 413 of the other limiting arm 410, which is selected according to the specific winding mode of the winding 300.

[0060] Referring to Figure 5As shown, it can be understood that each frame unit 210 is provided with a boss 214, the boss 214 is arranged away from the winding 300 direction, the limiting arm 410 is connected to the right side of the boss 214 and close to the position of the wire slot 213, wherein the frame unit 210 further comprises a first limiting plate 211 and a second limiting plate 212, the first limiting plate 211 and the second limiting plate 212 define a wire slot 213 therebetween, the first limiting plate 211 is closer to the center of the stator core 100 relative to the second limiting plate 212, the boss 214 is arranged on the side of the second limiting plate 212 away from the wire slot 213, and the limiting arm 410 is arranged spaced apart from the second limiting plate 212. The cross-over wire 310 or the lead-out wire can be led out from the gap between the limiting arm 410 and the second limiting plate 212, thereby facilitating quick limiting of the cross-over wire 310 or the lead-out wire.

[0061] Referring to Figure 5 As shown, it should be noted that the limiting arm 410 is connected to the frame unit 210 through the boss 214, which can realize the one-piece injection molding of the limiting arm 410, the boss 214 and the insulating frame 200, making the structure of the limiting arm 410 more stable and reliable, and the manufacturing cost is low; and the boss 214 can also be provided with a clamping groove 215 for facilitating the winding tool, thereby improving the assembly efficiency.

[0062] Continuing to refer to Figure 5 As shown, in some embodiments, the first protrusion 411 and the second protrusion 412 are both arranged close to the second wire hanging part 414, wherein the first protrusion 411 is arranged at the edge of the second wire hanging part 414, the first protrusion 411 and the second protrusion 412 are arranged spaced apart in the height direction, and the second wire hanging part 414 is arranged towards the adjacent frame unit 210, that is, the second wire hanging part 414 can protrude from the frame unit 210, so that the first protrusion 411, the second protrusion 412 and the frame unit 210 are arranged staggered in the height direction of the stator core 100.

[0063] It can be understood that since the limiting arm 410 is connected at the edge of the boss 214, in the above-mentioned height direction, the second wire hanging part 414, the first protrusion 411 and the second protrusion 412 all protrude from the boss 214, and the first protrusion 411 and the second protrusion 412 are arranged staggered with the boss 214, so that there is no other structure above and below the first protrusion 411, and there is no other structure above and below the second protrusion 412, facilitating the demolding of the injection mold in the up-down direction, the mold is easier to realize, and the cost is reduced; and the first protrusion 411 and the second protrusion 412 adopt the layout structure of the above-mentioned embodiments, and cooperate with the first wire hanging part 413 and the second wire hanging part 414, which can play a more stable limiting role on the first line segment 311 and the second line segment 312 of the cross-over wire 310, effectively avoiding the cross-over wire 310 from being separated from the insulating frame 200.

[0064] In combination withFigure 3 It can be understood that the leftmost frame unit 210 is taken as an example for description, the second wire hanging part 414 of the limiting arm 410 on the frame unit 210 is arranged to extend towards the adjacent frame unit 210, the second wire hanging part 414 can be close to the boss 214 of the other frame unit 210, and the wire 310 can be led out to the adjacent frame unit 210, and the wire is more stable.

[0065] Referring to Figure 6 As shown in the figure, in some embodiments, one end of the limiting arm 410 is provided with a first wire hanging part 413, the other end of the limiting arm 410 is provided with a second wire hanging part 414, the second wire hanging part 414 is arranged to extend along the circumference of the stator core 100, the limiting arm 410 is provided with a first protrusion 411 and a second protrusion 412, and the first protrusion 411 and the second protrusion 412 are arranged to be staggered along the height direction with the boss 214. Figure 5 The difference between the embodiments shown in the figure is that the first protrusion 411 is arranged at the middle position of the upper end of the limiting arm 410, and the second protrusion 412 is arranged close to the edge of the second wire hanging part 414, so as to satisfy that the first protrusion 411 and the second protrusion 412 are arranged to be staggered along the height direction with the boss 214, facilitating the demolding of the injection mold in the up-down direction; and the position of the second protrusion 412 is lower, so that the second protrusion 412 can be closer to the boss 214 of the adjacent frame unit 210, so that the wire 310 can be prevented from being separated downward from the second protrusion 412, and it is more reliable.

[0066] The embodiment of the application also provides an electric machine, which applies the stator assembly 1000 of the above-mentioned embodiments, and the specific electric machine is a three-phase electric machine suitable for a washing machine, and the electric machine further comprises a rotor, a bearing and other components, and the three-phase electric machine has the advantages of large power, stable operation and long service life, so that the washing machine has a better washing effect.

[0067] Referring to Figure 1 and Figure 2 As shown in the figure, in the stator assembly 1000 of the embodiment, the stator core 100 in the form of a strip or a block is adopted, the limiting arm 410 is added to the insulating frame 200, when the stator assembly 1000 is curled into a ring shape, the wire 310 can be bent together with the stator core 100 through the limitation of the limiting arm 410, so that the arc radius of the wire 310 when being bent can be increased, so that the wire 310 is in a tension state, the wire 310 is not easy to loosen, and the wire 310 is not easy to be separated from the insulating frame 200, the stability of the winding 300 is improved, and the electric machine is more reliable in operation.

[0068] Since the electric machine adopts all the technical solutions of the stator assembly 1000 of the above-mentioned embodiments, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are obtained, which will not be repeated here.

[0069] The embodiment of the present application also provides a washing equipment, which can be a washing machine or other washing electric appliance, and the washing equipment adopts the motor of the above-mentioned embodiment. Taking the washing machine as an example, the motor is installed in the washing machine, and the motor drives the rotation of the drum of the washing machine, so that the washing machine has a better washing effect.

[0070] Since the washing equipment adopts all the technical solutions of the stator assembly 1000 of the above-mentioned embodiment, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiment are achieved, and here, no further description is given.

[0071] The above describes the embodiment of the present application in combination with the drawings, but the present application is not limited to the above-mentioned embodiment, and various changes can be made within the knowledge possessed by those skilled in the art without departing from the purpose of the present application.

Claims

1. A stator assembly, characterized in that, include: Stator core; An insulating frame is provided on the stator core; A multi-phase winding is wound on the insulating frame. Each phase of the winding includes multiple coils, which are spaced apart circumferentially along the stator core. The coils in each phase of the winding are connected by cross-wires, which are arranged circumferentially along the stator core. The insulating frame is provided with a winding groove, a boss and a plurality of limiting parts. The plurality of limiting parts are arranged at intervals along the circumference of the stator core and are used to limit the cross wires along the radial direction of the stator core. The winding groove is provided on the side of the frame unit near the center of the stator core and is used to wind the coil. The boss is oriented away from the winding. The plurality of limiting portions are multiple limiting arms formed on the insulating frame. Each limiting arm is connected to one end of the boss near the winding slot. One end of each limiting arm is connected to the insulating frame, and the other end is positioned along the height direction of the stator core. The limiting arm abuts against the wall surface away from the winding and is positioned against the cross-wire. The wall surface has a first protrusion located at the end of the limiting arm away from the insulating frame. The wall surface also has a second protrusion, which is spaced apart from the first protrusion along the height direction of the limiting arm. The cross-wire is located between the first and second protrusions. The first and second protrusions are staggered along the height direction of the limiting arm. The limiting arm has a first hanging part at one end connected to the insulating frame, and a second hanging part at the other end of the limiting arm. The second hanging part is arranged along the circumference of the stator core. One end of the cross wire is bent to form a first line segment, and the other end of the cross wire is bent to form a second line segment. The first line segment abuts against the first hanging part of one of the limiting arms, and the second line segment abuts against the second hanging part of the other limiting arm.

2. The stator assembly according to claim 1, characterized in that, At least one of the limiting arms is located between the first line segment and the second line segment, and is used to limit the line body between the first line segment and the second line segment.

3. The stator assembly according to claim 1, characterized in that, The insulating frame includes multiple frame units arranged along the circumference of the stator core. Each frame unit is provided with a limiting arm. The first protrusion and the second protrusion are arranged near the second hanging part, and the second hanging part is arranged towards the adjacent frame unit, so that the first protrusion, the second protrusion and the frame unit are staggered along the height direction of the stator core.

4. The stator assembly according to claim 1, characterized in that, The insulating frame, the boss, and the limiting arm are integrally formed.

5. An electric motor, characterized in that, Includes the stator assembly as described in any one of claims 1 to 4.

6. A washing device, characterized in that, Includes the motor described in claim 5.

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