Stator assembly, motor and cleaning equipment

Abstract

The utility model provides a stator assembly, a motor and cleaning equipment, and relates to the technical field of motors. The stator assembly includes: a stator core; the insulating frame is arranged on the stator core; the windings are wound on the insulating frame, the insulating frame is located between the windings and the stator iron core, each winding comprises a plurality of coils, and the coils are arranged in the circumferential direction of the stator iron core at intervals; the connecting wire is arranged along the circumferential direction of the stator core; wherein the insulating frame is provided with a plurality of limiting parts, the plurality of limiting parts are arranged at intervals along the circumferential direction of the stator iron core, the limiting parts are provided with first convex ribs, the first convex ribs protrude out of the limiting parts along the circumferential direction of the stator iron core, and the first convex ribs protrude from one ends of the limiting parts to one side opposite to the winding; and the first convex ribs are used for supporting the connecting wires in the axial direction of the stator core. The problem that the connecting wire is separated from the supporting part can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, specifically, relate to a kind of stator assembly, motor and cleaning equipment. BACKGROUND

[0002] The stator assembly that adopts spliced insulating frame to wind is wound when insulating frame is linearly unfolded, then insulating frame is curled into annular winding, and adjacent coils in winding need to cross wire, to avoid cross wire to be loose, limiting structure is set on insulating frame to support cross wire.

[0003] In the related art, the limiting structure supporting the cross wire has the problem that the cross wire is easy to come off when supporting the cross wire. SUMMARY

[0004] The utility model is aimed at at least solving the technical problem that the limiting structure supporting the cross wire is easy to come off in the prior art.

[0005] To this end, the first aspect of the utility model provides a kind of stator assembly.

[0006] The second aspect of the utility model provides a kind of motor.

[0007] The third aspect of the utility model provides a kind of cleaning equipment.

[0008] Therefore, the first aspect of the utility model provides a kind of stator assembly, and the stator assembly comprises: a stator core; an insulating frame, the insulating frame is arranged on the stator core; a plurality of windings, the winding is wound on the insulating frame, and the insulating frame is located between the winding and the stator core; each winding comprises a plurality of coils, and the plurality of coils are arranged at intervals in the circumferential direction of the stator core; a connecting wire, the connecting wire is arranged in the circumferential direction of the stator core, and the connecting wire is used to connect two coils of the same phase winding; wherein the insulating frame is provided with a plurality of limiting portions, and the plurality of limiting portions are arranged at intervals in the circumferential direction of the stator core; the limiting portion is provided with a first rib, the first rib protrudes from the limiting portion in the circumferential direction of the stator core, and the first rib protrudes from one end of the limiting portion towards the side away from the winding, and the first rib is used to support the connecting wire in the axial direction of the stator core.

[0009] In the technical scheme, the insulating frame is used to bear the stator core and the winding, wherein the stator core is arranged inside the insulating frame, and the coil is wound on the outside of the insulating frame to form the winding, the insulating frame has good insulation performance, and the winding wound on the outside of the insulating frame and the stator core arranged inside the insulating frame are separated by the insulating frame to ensure the insulation between the winding and the stator core. The number of windings is multiple, and each winding comprises a plurality of coils, and the adjacent coils in the same phase winding are connected by the connecting wire, and the connecting wire is the cross wire between the coils.

[0010] It should be noted that the insulating frame is a deformable frame, the insulating frame includes a straight expansion state and a curled surrounding state, and a plurality of stator cores can be arranged in the insulating frame. During the winding phase, the insulating frame after arranging the stator core is in a straight expansion state, and the winding is wound on the insulating frame in the straight expansion state. After the winding is wound, the insulating frame is curled into a ring shape.

[0011] It should be noted that the number of windings in the motor is not limited to three, and the number of coils is also not limited to twelve. The number of windings and the number of coils in the motor can be designed according to actual needs.

[0012] In this technical solution, a plurality of limiting portions are further arranged on the insulating frame, and the limiting portions are used to support the connecting wires in the radial direction of the stator core. It can be understood that after the winding is wound on the insulating frame in the straight expansion state, and the insulating frame with the stator core is curled into a ring shape, because the length of the connecting wire after the stator core is curled is less than the length of the connecting wire when the stator core is in a straight line, the curled connecting wire is easy to loosen, which causes the connecting wire to separate from the insulating frame. By arranging the limiting portion to support the connecting wire in the radial direction, the risk of disconnection caused by the loosening of the connecting wire can be reduced.

[0013] In this technical solution, a first protruding rib is further arranged on the limiting portion, and the first protruding rib is arranged at one end of the limiting portion in the circumferential direction of the stator core, that is, the first protruding rib extends out of the limiting portion. Specifically, the first protruding rib protrudes from the limiting portion in the circumferential and axial directions of the stator core. When the connecting wire passes through the limiting portion from the insulating frame, the first protruding rib can limit the movement of the connecting wire in the axial direction of the stator core.

[0014] It should be noted that if the first protruding rib is arranged at the middle position of the limiting portion, after the stator core is curled, the connecting wire is more closely attached to the limiting portion, which will cause the connecting wire to be separated from the limiting portion.

[0015] Specifically, the first protruding rib is arranged at one end of the limiting portion in the circumferential direction of the stator core, that is, the first protruding rib is located at the edge position of the limiting portion, and the first protruding rib extends out of the limiting portion, which can prevent the connecting wire from being separated from the position of the first protruding rib.

[0016] It should be noted that the height of the first protruding rib protruding from the limiting portion is greater than the diameter of the connecting wire, so that the connecting wire is not separated from the support of the first protruding rib when crossing the wire, thereby improving the limiting support effect of the first protruding rib on the connecting wire.

[0017] In the technical scheme, the stator core and the plurality of windings are arranged on the insulating frame, the plurality of coils in the same phase winding are distributed along the circumferential direction of the stator core, the plurality of coils in the same phase winding are cross-connected through the connecting wire, and the plurality of limiting portions are arranged on the insulating frame, the connecting wire is supported in the radial direction of the stator core through the plurality of limiting portions, the first protruding rib is arranged at one end of the limiting portion along the circumferential direction of the stator core, the first protruding rib can support and limit the connecting wire in the axial direction of the stator core, the first protruding rib is located at the edge of the limiting portion, the first protruding rib extends out of the limiting portion, the first protruding rib can protrude out of the limiting portion to support and limit the connecting wire, the edge of the limiting portion can also support the connecting wire, the supporting effect of the connecting wire is further improved, and the problem that the connecting wire is pulled out of the supporting portion can be effectively solved.

[0018] In addition, the stator assembly provided by the utility model also has the following additional technical features.

[0019] In some technical schemes, the side of the limiting portion away from the winding is also provided with a second protruding rib, the first protruding rib and the second protruding rib are arranged at intervals in the axial direction of the stator core, and the connecting wire is located between the first protruding rib and the second protruding rib, wherein, in the circumferential direction of the stator core, the first protruding rib protrudes outwards of the limiting portion more than the second protruding rib.

[0020] In the technical scheme, the second protruding rib is also arranged on the limiting portion, the second protruding rib is arranged at intervals with the first protruding rib in the axial direction of the stator core, and the connecting wire after winding is located between the first protruding rib and the second protruding rib, that is, under the joint action of the first protruding rib and the second protruding rib, the connecting wire is limited in the axial direction of the stator core, and the supporting and limiting action of the limiting portion on the connecting wire in the axial direction is avoided. Wherein, in the circumferential direction of the stator core, the first protruding rib protrudes outwards of the limiting portion more than the second protruding rib, which can effectively prevent the connecting wire from being pulled out of the position of the first protruding rib during winding.

[0021] Specifically, the first protruding rib is arranged at the bottom end of the limiting portion in the axial direction of the stator core and at one end of the limiting portion in the circumferential direction of the stator core, and the second protruding rib is arranged at the top end of the limiting portion in the axial direction of the stator core and at the middle of the limiting portion along the axis of the stator core. The protruding height of the first protruding rib and the second protruding rib is greater than the wire diameter of the connecting wire, so that the connecting wire will not pass over the first protruding rib and the second protruding rib during cross connection, and the stability of the connecting wire being limited by the limiting portion is further improved, and the risk of the connecting wire being pulled out is reduced.

[0022] It should be noted that since the winding also has a lead wire, the lead wire does not need to cross the insulation frame, and the lead wire can be led out from one of the coils, pass through the limiting portion for limiting, and then be connected to the adjacent other coil, that is, the limiting portion can limit the connecting wire and the lead wire which does not need to cross, and the distance between the first protruding rib and the second protruding rib can meet the size requirement of accommodating the connecting wire and the lead wire, so as to avoid the connecting wire and the lead wire from being separated from the limiting portion.

[0023] In the technical scheme of the present application, the first protruding rib and the second protruding rib are arranged at intervals in the axial direction of the stator core on the limiting portion, the connecting wire for crossing the wire can be located between the first protruding rib and the second protruding rib, the first protruding rib and the second protruding rib limit the connecting wire in the axial direction of the stator core, further reducing the risk of the connecting wire coming off, and improving the stability of the motor operation.

[0024] In some technical schemes, the first end of the limiting portion is provided with a first round corner in the circumferential direction of the stator core, and the second end of the limiting portion is provided with a second round corner.

[0025] In the technical scheme of the present application, the first end and the second end of the limiting portion are respectively provided with a first round corner and a second round corner in the circumferential direction of the stator core. When the connecting wire crosses the wire, the connecting wire passes through the first end and the second end of the limiting portion in the circumferential direction, and by setting the first end and the second end passed by the connecting wire with the first round corner and the second round corner respectively, the damage to the paint of the connecting wire can be effectively avoided, so as to avoid the damage to the connecting wire when the limiting portion supports and limits the connecting wire, and further improve the stability and safety of the connecting wire when crossing the wire.

[0026] In some technical schemes, optionally, the limiting portion is further provided with a reinforcing rib, and the reinforcing rib extends at least partially in the axial direction of the stator core.

[0027] In the technical scheme of the present application, the reinforcing rib is arranged on the limiting portion, and at least part of the reinforcing rib extends in the axial direction of the stator core, so that the reinforcing rib can strengthen the strength of the limiting portion in the axial direction of the stator core, thereby strengthening the frame strength of the insulation frame. Since the connecting wire directly contacts the limiting portion during the winding process, the bending of the frame during the winding process is avoided.

[0028] It should be noted that since the limiting portion is integrally formed with the insulation frame, the frame strength of the insulation frame can be effectively increased by arranging the reinforcing rib on the limiting portion, and the connecting wire directly contacts the limiting portion during the winding process, which can further avoid the deformation of the insulation frame under stress during the winding process.

[0029] In some technical schemes, optionally, the reinforcing rib is located on the side of the limiting portion away from the winding, and the side of the reinforcing rib facing the connecting wire is provided with a third round corner.

[0030] In the technical solution, the reinforcing rib is located on the side of the limiting portion away from the winding, i.e., the reinforcing rib is arranged on the side of the limiting portion facing the connecting line, so that the reinforcing rib protruding from the surface of the limiting portion can avoid pressing the position of the winding and interference between the winding and the reinforcing rib. When the limiting portion supports the connecting line, the side of the reinforcing rib facing the connecting line directly contacts the connecting line. By arranging a third round corner on the side of the reinforcing rib facing the connecting line, the contact of the reinforcing rib with the connecting line can be avoided to prevent damage to the connecting line.

[0031] In some technical solutions, the insulating frame includes a plurality of frame units, and the plurality of frame units are distributed along the circumferential direction of the stator core. One coil is wound on each frame unit, and one limiting portion is arranged on each frame unit.

[0032] In the technical solution, the insulating frame includes a plurality of frame units, and the plurality of frame units are distributed along the circumferential direction of the stator core. The plurality of frame units correspond to the plurality of coils one by one, and one limiting portion is arranged on each frame unit. The plurality of frame units can be spliced to form the insulating frame, and the frame units correspond to the coils one by one. Therefore, a proper number of frame units can be selected according to actual needs to prepare a stator assembly with a corresponding number of coils, thereby simplifying the preparation process of the stator assembly and flexibly adjusting the number of coils and other parameters of the stator assembly, improving the flexibility of the design and manufacture of the stator assembly.

[0033] Specifically, one limiting portion and one boss are arranged on each frame unit. The boss and the limiting portion are distributed at two ends of the frame unit along the circumferential direction of the stator core. The boss of one of the two adjacent frame units in the insulating frame is arranged adjacent to the limiting portion of the other frame unit.

[0034] In some technical solutions, the frame unit includes a wire winding groove, and the coil is located in the wire winding groove. The frame unit and the limiting portion are in an integrated structure.

[0035] In the technical solution, the frame unit further includes a wire winding groove. The wire winding groove is used for winding the coil. The coil can be formed in the frame unit by winding the wire in the wire winding groove. The wire winding groove is arranged in the frame unit, so that the frame unit has sufficient space for winding the coil, and the wire winding amount of each frame unit is ensured.

[0036] In the technical solution, one limiting portion is arranged on each frame unit. The limiting portion and the frame unit are integrally formed, which facilitates the machining and forming of the frame unit and the limiting portion, and is conducive to reducing the production cost of the insulating frame.

[0037] In some embodiments, the frame unit is provided with a protrusion, and the protrusion and the limiting portion are located at two ends of the frame unit in the circumferential direction of the stator core.

[0038] In the technical scheme, the frame unit is provided with the protrusion and the limiting portion, the protrusion protrudes from the surface of the frame unit, the protrusion can be a stepped surface on the frame unit, and the protrusion and the limiting portion are distributed at two ends of the frame unit. When a plurality of frame units are combined to form an insulation frame, the gap between the first protruding rib and the protrusion on the adjacent two frame units is reduced, and the connection line is prevented from being clamped between the frame unit and the first protruding rib after being detached from between the first protruding rib and the second protruding rib.

[0039] It can be understood that the first protruding rib on one of the adjacent two frame units is located adjacent to the protrusion on the other frame unit.

[0040] It should be noted that when the first protruding rib and the second protruding rib limit and support the connection line, if the connection line is detached from between the first protruding rib and the second protruding rib, the connection line will be clamped between the first protruding rib and the frame unit, and since the gap between the first protruding rib and the frame unit is small, the connection line is easily damaged. By providing the protrusion at the position corresponding to the first protruding rib of the adjacent two frame units, i.e. in the area covered by the first protruding rib on the insulation frame, the gap between the frame unit and the first protruding rib is reduced. Even if the connection line is detached from between the first protruding rib and the second protruding rib, the connection line will directly contact the protrusion, and the protrusion protrudes from the insulation frame, which can effectively prevent the connection line from being clamped between the frame unit and the first protruding rib.

[0041] In the technical scheme, the protrusion is provided on the frame unit, and the protrusion and the limiting portion are located at two ends of the frame unit, so that when the frame units are combined to form an insulation frame, the gap between the adjacent first protruding rib and the protrusion is small, and the connection line is effectively prevented from being clamped between the frame unit and the first protruding rib after being detached from between the first protruding rib and the second protruding rib.

[0042] In some embodiments, in the axial direction of the stator core, the distance between the protrusion on the frame unit and the first protruding rib on the adjacent frame unit is a preset distance, and the preset distance is greater than or equal to 0.2 mm and less than or equal to 0.6 mm.

[0043] In the technical solution, a gap with a preset interval is arranged between the boss on one of the two adjacent frame units and the first protruding rib on the other frame unit in the axial direction of the stator core, the interval is less than or equal to 0.6 mm, which can effectively avoid the connection wire from being clamped between the boss and the first protruding rib, and specifically, the interval between the boss and the first protruding rib is less than the wire diameter of the connection wire, thereby effectively avoiding the connection wire from being clamped in the gap between the boss and the first protruding rib after being released from the limitation of the first protruding rib and the second protruding rib.

[0044] In the technical solution, considering the manufacturing tolerance, a gap is arranged between the boss and the first protruding rib in the axial direction of the stator core, the interval is greater than or equal to 0.2 mm, which can avoid interference between the boss and the first protruding rib when the two adjacent frame units are combined to form the insulating frame.

[0045] It should be noted that the insulating frame is composed of multiple frame units, and the interval between the first protruding rib and the boss is the interval between the first protruding rib of one of the two adjacent frame units and the boss of the other frame unit. Due to the manufacturing tolerance, the interval between the first protruding rib and the boss is less than or equal to 0.6 mm, which effectively avoids interference between the first protruding rib and the boss after the two frame units are installed.

[0046] In the technical solution, the interval between the first protruding rib and the boss is less than or equal to 0.6 mm, which effectively avoids the released connection wire from being clamped in the gap between the first protruding rib and the boss, and the interval between the first protruding rib and the boss is greater than or equal to 0.2 mm, which avoids interference between the boss and the first protruding rib.

[0047] The second aspect of the utility model provides a kind of motor, comprising: the stator assembly in any of the above technical solutions;Rotor assembly, rotor assembly is set to inside stator assembly;Shaft, shaft is arranged in rotor assembly.

[0048] In the technical solution, the motor includes a stator assembly, a rotor assembly and a shaft, and under the condition that the motor is powered, the rotor assembly can drive the shaft to rotate under the magnetic field of the stator assembly, wherein the stator assembly is the stator assembly in any of the above technical solutions, and thus has all the technical effects of the stator assembly in any of the above technical solutions, which will not be repeated here.

[0049] The third aspect of the utility model provides a kind of cleaning equipment, comprising: a body;The motor in any of the above technical solutions, motor is located in the body. Motor is the motor in any of the above technical solutions, and thus has all the technical effects of the motor in any of the above technical solutions, which will not be repeated here.

[0050] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention. Attached Figure Description

[0051] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0052] Figure 1 This paper shows one of the structural schematic diagrams of the stator assembly provided in some embodiments of this application;

[0053] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0054] Figure 3 This is a second schematic diagram of the stator assembly provided in some embodiments of this application;

[0055] Figure 4 This is shown as a third schematic diagram of the stator assembly provided in some embodiments of this application;

[0056] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0057] Figure 6 This illustration shows one of the structural schematic diagrams of the frame unit provided in some embodiments of this application;

[0058] Figure 7 This is a second schematic diagram of the structure of the frame unit provided in some embodiments of this application;

[0059] Figure 8 The present application shows schematic diagrams of the structure of the motor provided in some embodiments;

[0060] Figure 9 A schematic diagram of the structure of the cleaning equipment provided in some embodiments of this application is shown.

[0061] in, Figures 1 to 9 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0062] 100 Stator assembly, 110 Stator core, 120 Insulation frame, 121 Frame unit, 122 Winding slot, 130 Winding, 131 Coil, 140 Connecting wire, 150 Limiting part, 151 First rib, 152 Second rib, 153 First fillet, 154 Second fillet, 155 Reinforcing rib, 156 Third fillet, 160 Boss, 200 Motor, 201 Rotor assembly, 202 Shaft, 300 Cleaning equipment, 301 Body. Detailed Implementation

[0063] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0064] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0065] The following reference Figures 1 to 9 This invention describes a stator assembly, a motor, and a cleaning device according to some embodiments of the present invention.

[0066] Figure 1 This illustration shows one of the structural schematic diagrams of the stator assembly provided in some embodiments of this application. Figure 2 for Figure 1 Enlarged view of point A in the middle. Figure 3 This is the second schematic diagram of the stator assembly provided in some embodiments of this application. Figure 4 The third schematic diagram of the stator assembly provided in some embodiments of this application is shown. Figure 5 for Figure 4 Enlarged view at point B in the middle. Figure 6 This illustration shows one of the structural schematic diagrams of the frame unit provided in some embodiments of this application. Figure 7 The second schematic diagram of the structure of the frame unit provided in some embodiments of this application is shown, such as Figures 1 to 7As shown, one embodiment of the utility model discloses a stator assembly 100, and the stator assembly 100 includes: a stator core 110;Insulating frame 120, insulating frame 120 is located in stator core 110;Multiple windings 130, winding 130 is located in insulating frame 120, and insulating frame 120 is located between winding 130 and stator core 110, and each winding 130 includes multiple coils 131, and multiple coils 131 are spaced apart in the circumferential direction of stator core 110;Connecting wire 140, connecting wire 140 is arranged along the circumferential direction of stator core 110, and connecting wire 140 is used to connect two coils 131 of the same phase winding 130;Wherein, insulating frame 120 is provided with multiple limit parts 150, and multiple limit parts 150 are spaced apart along the circumferential direction of stator core 110, limit part 150 is provided with first convex rib 151, and first convex rib 151 protrudes from limit part 150 along the circumferential direction of stator core 110, and one end of limit part 150 is provided with first convex rib 151, and first convex rib 151 protrudes from the side away from winding 130 from one end of limit part 150, and first convex rib 151 is used to support connecting wire 140 in the axial direction of stator core 110.

[0067] In this embodiment, insulating frame 120 is used to bear stator core 110 and winding 130, wherein stator core 110 is arranged inside insulating frame 120, and coil 131 is arranged on the outer side of insulating frame 120 to form winding 130, and insulating frame 120 has good insulation performance, and winding 130 arranged on the outer side of insulating frame 120 can be separated from stator core 110 arranged inside insulating frame 120 through insulating frame 120, so as to ensure the insulation between winding 130 and stator core 110. The number of windings 130 is multiple, and each winding 130 includes multiple coils 131, and adjacent coils 131 in the same phase winding 130 are connected through connecting wire 140, and connecting wire 140 is a cross wire between coils 131.

[0068] It should be noted that insulating frame 120 is a deformable frame, and insulating frame 120 includes a straight expansion state and a curled surrounding state, and multiple stator cores 110 can be arranged inside insulating frame 120. In the winding 130 stage, make the insulating frame 120 after setting stator core 110 present straight expansion state, winding 130 is arranged on the insulating frame 120 in straight expansion state, after winding 130 is arranged, insulating frame 120 is curled into a ring.

[0069] For example, the number of windings 130 is three, that is, the windings 130 are three-phase windings 130, each winding 130 including twelve coils 131. Each winding 130 includes four coils 131, wherein four coils 131 are connected in series to form phase A winding 130, another four coils 131 are connected in series to form phase B winding 131, and the remaining four coils 131 are connected in series to form phase C winding 130. The four coils 131 in phase A winding 130 are connected by connecting wires 140, the four coils 131 in phase B winding 130 are connected by connecting wires 140, and the four coils 131 in phase C winding 130 are connected by connecting wires 140. The twelve coils 131 are distributed along the circumferential direction of the stator core 110, as shown below. Figure 1 and Figure 5 As shown, arrow A' indicates the circumferential direction of the stator core 110. It should be noted that the number of windings 130 in the motor is not limited to 3, and the number of coils 131 is not limited to 12. The number of windings 130 and coils 131 in the motor can be designed according to actual needs.

[0070] In this embodiment, a plurality of limiting portions 150 are also provided on the insulating frame 120. The limiting portions 150 are used to support the connecting wire 140 in the radial direction of the stator core 110. It can be understood that after the winding 130 is wound on the insulating frame 120 in a straight unfolded state, and the insulating frame 120 through which the stator core 110 is coiled into a ring, the length of the connecting wire 140 after coiling in the stator core 110 is less than the length of the connecting wire 140 in a straight state in the stator core 110. Therefore, the coiled connecting wire 140 is prone to loosening, causing the connecting wire 140 to detach from the insulating frame 120. By providing the limiting portions 150 to support the connecting wire 140 in the radial direction, the risk of the connecting wire 140 falling off due to transmission can be reduced.

[0071] like Figure 1 As shown, arrow B' indicates the radial direction of the stator core 110.

[0072] In this embodiment, a first protruding rib 151 is also provided on the limiting part 150. The first protruding rib 151 is located at one end of the limiting part 150 along the circumferential direction of the stator core 110, that is, the first protruding rib 151 extends outside the limiting part 150. Specifically, the first protruding rib 151 protrudes from the limiting part 150 both circumferentially and axially along the stator core 110. When the connecting wire 140 passes through the limiting part 150 from the insulating frame 120, the first protruding rib 151 can restrict the movement of the connecting wire 140 in the axial direction along the stator core 110.

[0073] like Figure 1 and Figure 5 As shown, arrow C' indicates the axial direction of the stator core 110.

[0074] It should be noted that if the first protruding rib 151 is arranged at the middle position of the limiting portion 150, after the stator core 110 is curled, the connection line 140 is more closely attached to the limiting portion 150, which can cause the connection line 140 to be detached from the limiting portion 150.

[0075] As shown in Figure 2 and Figure 5 Specifically, the first protruding rib 151 is arranged at one end of the limiting portion 150 in the circumferential direction of the stator core 110, that is, the first protruding rib 151 is located at the edge position of the limiting portion 150, and the first protruding rib 151 extends to the outside of the limiting portion 150, which can avoid the connection line 140 from being detached from the position of the first protruding rib 151.

[0076] Exemplarily, the number of the first protruding rib 151 can be one, and one first protruding rib 151 is arranged at one end of the limiting portion 150 in the circumferential direction of the stator core 110, for example, at the left end or the right end of the limiting portion 150.

[0077] Exemplarily, the number of the first protruding rib 151 can be two, and two first protruding ribs 151 are arranged at both ends of the limiting portion 150 in the circumferential direction of the stator core 110, for example, one first protruding rib 151 is arranged at the left end of the limiting portion 150, and the other first protruding rib 151 is arranged at the right end of the limiting portion 150.

[0078] It should be noted that the height of the first protruding rib 151 protruding from the limiting portion 150 is greater than the diameter of the connection line 140, so as to ensure that the connection line 140 will not be detached from the support of the first protruding rib 151 when crossing the line, thereby improving the limiting and supporting effect of the first protruding rib 151 on the connection line 140.

[0079] In the embodiment, the stator core 110 and the plurality of windings 130 are arranged on the insulating frame 120, the plurality of coils 131 in the same phase winding 130 are distributed along the circumferential direction of the stator core 110, the plurality of coils 131 in the same phase winding 130 are connected by the connecting wire 140, and the plurality of limiting portions 150 are arranged on the insulating frame 120. The connecting wire 140 is supported in the radial direction of the stator core 110 by the plurality of limiting portions 150. The first protruding rib 151 is arranged at one end of the limiting portion 150 along the circumferential direction of the stator core 110. The first protruding rib 151 can support and limit the connecting wire 140 in the axial direction of the stator core 110. The first protruding rib 151 is located at the edge of the limiting portion 150 and extends out of the limiting portion 150, so that the first protruding rib 151 can protrude out of the limiting portion 150 to support and limit the connecting wire 140. The edge of the limiting portion 150 can also support the connecting wire 140, which further improves the support effect of the connecting wire 140 and effectively prevents the connecting wire 140 from being pulled out of the support portion.

[0080] As shown in Figures 1 to 7 In some embodiments, the side of the limiting portion 150 opposite to the winding 130 is also provided with a second protruding rib 152. The first protruding rib 151 and the second protruding rib 152 are arranged in the axial direction of the stator core 110. The connecting wire 140 is located between the first protruding rib 151 and the second protruding rib 152. In the axial direction of the stator core 110, the first protruding rib 151 protrudes outward of the limiting portion 150 more than the second protruding rib 152.

[0081] In this embodiment, the limiting portion 150 is also provided with a second protruding rib 152. The second protruding rib 152 is arranged in the axial direction of the stator core 110 and spaced apart from the first protruding rib 151. The connecting wire 140 after winding is located between the first protruding rib 151 and the second protruding rib 152. The first protruding rib 151 and the second protruding rib 152 jointly limit the connecting wire 140 in the axial direction of the stator core 110 to prevent the connecting wire 140 from being pulled out of the support and limitation of the limiting portion 150 in the axial direction. In the axial direction of the stator core 110, the first protruding rib 151 protrudes outward of the limiting portion 150 more than the second protruding rib 152, which effectively prevents the connecting wire 140 from being pulled out of the first protruding rib 151 during winding.

[0082] As shown in Figures 1 to 5As shown, specifically, the first protruding rib 151 is arranged at the bottom end of the limiting portion 150 in the axial direction of the stator core 110 and at one end of the limiting portion 150 in the circumferential direction of the stator core 110, and the second protruding rib 152 is arranged at the top end of the limiting portion 150 in the axial direction of the stator core 110 and at the middle of the limiting portion 150 in the axial direction of the stator core 110. The protruding heights of the first protruding rib 151 and the second protruding rib 152 are both greater than the diameter of the connecting wire 140, so as to ensure that the connecting wire 140 will not pass over the first protruding rib 151 and the second protruding rib 152 when crossing the wire, and the stability of the connecting wire 140 being limited by the limiting portion 150 is further improved, and the risk of the connecting wire 140 being pulled out is reduced.

[0083] Exemplarily, the first protruding rib 151, the second protruding rib 152 and the limiting portion 150 are integrally formed, which facilitates processing and molding, simplifies the preparation process, and also reduces production costs.

[0084] It should be noted that since the winding 130 is also provided with a lead-out wire, the lead-out wire does not need to cross the insulating frame 120, and the lead-out wire can be led out from one coil 131 and then limited by the limiting portion 150 and then connected to the adjacent other coil 131, that is, the limiting portion 150 can limit the connecting wire 140 and the lead-out wire that does not need to cross, and the distance between the first protruding rib 151 and the second protruding rib 152 can meet the size requirements of accommodating the connecting wire 140 and the lead-out wire, so as to avoid the connecting wire 140 and the lead-out wire from being pulled out of the limiting portion 150.

[0085] In the embodiment of the application, by arranging the first protruding rib 151 and the second protruding rib 152 on the limiting portion 150 and spacing the first protruding rib 151 and the second protruding rib 152 in the axial direction of the stator core 110, the connecting wire 140 used for crossing the wire can be located between the first protruding rib 151 and the second protruding rib 152, so that the first protruding rib 151 and the second protruding rib 152 limit the connecting wire 140 in the axial direction of the stator core 110, further reducing the risk of the connecting wire 140 being pulled out and improving the stability of the motor operation.

[0086] As shown in FIG. 1, Figures 1 to 6 In some embodiments, in the circumferential direction of the stator core 110, the first end of the limiting portion 150 is provided with a first round corner 153, and the second end of the limiting portion 150 is provided with a second round corner 154.

[0087] In the embodiments of the present application, the first end and the second end of the limiting portion 150 are respectively provided with a first rounded corner 153 and a second rounded corner 154 in the circumferential direction of the stator core 110. When the connecting wire 140 is crossed, the connecting wire 140 will pass through the first end and the second end of the limiting portion 150 in the circumferential direction. By setting the first end and the second end that the connecting wire 140 passes through with the first rounded corner 153 and the second rounded corner 154 respectively, the paint of the connecting wire 140 can be effectively prevented from being damaged, so that the connecting wire 140 is prevented from being damaged when the limiting portion 150 supports and limits the connecting wire 140, and the stability and safety of the connecting wire 140 when crossed are further improved.

[0088] Exemplarily, the first protruding rib 151 is arranged at the first end of the limiting portion 150.

[0089] As shown in Figure 5 and Figure 6 In some embodiments, the limiting portion 150 is optionally further provided with a reinforcing rib 155, and the reinforcing rib 155 extends at least partially in the axial direction of the stator core 110.

[0090] In the embodiments of the present application, the reinforcing rib 155 is arranged on the limiting portion 150, and at least part of the reinforcing rib 155 extends in the axial direction of the stator core 110, so that the reinforcing rib 155 can strengthen the strength of the limiting portion 150 in the axial direction of the stator core 110, thereby strengthening the frame strength of the insulating frame 120. Since the connecting wire 140 directly contacts the limiting portion 150 during the winding process, the bending of the frame during the winding process is avoided.

[0091] It should be noted that, since the limiting portion 150 is integrally formed with the insulating frame 120, the frame strength of the insulating frame 120 can be effectively increased by arranging the reinforcing rib 155 on the limiting portion 150, and the connecting wire 140 directly contacts the limiting portion 150 during the winding process, which can further avoid the deformation of the insulating frame 120 due to stress during the winding process.

[0092] As shown in Figure 5 In some embodiments, the reinforcing rib 155 is located on the side of the limiting portion 150 away from the winding 130, and the side of the reinforcing rib 155 facing the connecting wire 140 is provided with a third rounded corner 156.

[0093] In the embodiment of the present application, the reinforcing rib 155 is located on the side of the limiting portion 150 away from the winding 130, that is, the reinforcing rib 155 is arranged on the side of the limiting portion 150 facing the connecting wire 140, so that the reinforcing rib 155 protruding from the surface of the limiting portion 150 can avoid extruding the position of the winding 130, and the interference between the winding 130 obtained by winding and the reinforcing rib 155 can be avoided. When the limiting portion 150 supports and limits the connecting wire 140, the side of the reinforcing rib 155 facing the connecting wire 140 directly contacts the connecting wire 140. By arranging the third round corner 156 on the side of the reinforcing rib 155 facing the connecting wire 140, the damage of the connecting wire 140 caused by the contact of the reinforcing rib 155 with the connecting wire 140 can be avoided.

[0094] As shown in Figures 1 to 7 In some embodiments, the insulating frame 120 includes a plurality of frame units 121, and the plurality of frame units 121 are distributed along the circumferential direction of the stator core 110. One coil 131 is wound on each frame unit 121, and one limiting portion 150 is arranged on each frame unit 121.

[0095] In the embodiment of the present application, the insulating frame 120 includes a plurality of frame units 121, and the plurality of frame units 121 are distributed along the circumferential direction of the stator core 110. The plurality of frame units 121 correspond to the plurality of coils 131 one by one, and one limiting portion 150 is arranged on each frame unit 121. The plurality of frame units 121 can be spliced to form the insulating frame 120, and the frame units 121 correspond to the coils 131 one by one. Therefore, the appropriate number of frame units 121 can be selected according to actual needs, so that the stator assembly 100 with the corresponding number of coils 131 can be prepared. Thus, the preparation process of the stator assembly 100 is simplified, and the number of coils 131 and other parameters of the stator assembly 100 can be flexibly adjusted, thereby improving the flexibility of design and manufacture of the stator assembly 100.

[0096] As shown in Figure 1 and Figure 2 For example, the stator assembly 100 includes twelve coils 131, and the number of frame units 121 is also twelve. The coils 131 are wound on the frame units 121 one by one.

[0097] Specifically, one limiting portion 150 and one boss 160 are arranged on each frame unit 121. The boss 160 and the limiting portion 150 are distributed at both ends of the frame unit 121 along the circumference of the stator core 110. The boss 160 of one of the two adjacent frame units 121 in the insulating frame 120 is arranged adjacent to the limiting portion 150 of the other frame unit 121.

[0098] As shown in Figure 6 and Figure 7As shown in the figure, in some embodiments, the frame unit 121 optionally comprises a winding groove 122, and the coil 131 is located in the winding groove 122; the frame unit 121 and the limiting part 150 are in an integrated structure.

[0099] In the embodiment of the present application, the winding groove 122 is further arranged in the frame unit 121, and the winding groove 122 is used for winding the coil 131. By winding the wire in the winding groove 122, the coil 131 can be formed in the frame unit 121. By arranging the winding groove 122 in the frame unit 121, the frame unit 121 has enough space to wind the coil 131, thereby ensuring the winding amount of each frame unit 121.

[0100] In the embodiment of the present application, the limiting part 150 is arranged on each frame unit 121, and the limiting part 150 is integrally formed with the frame unit 121, thereby facilitating the machining of the frame unit 121 and the limiting part 150, and being conducive to reducing the production cost of the insulating frame 120.

[0101] As shown in the figure, in some embodiments, the frame unit 121 optionally comprises a winding groove 122, and the coil 131 is located in the winding groove 122; the frame unit 121 and the limiting part 150 are in an integrated structure. Figures 1 to 7 As shown in the figure, in some embodiments, the frame unit 121 optionally comprises a winding groove 122, and the coil 131 is located in the winding groove 122; the frame unit 121 and the limiting part 150 are in an integrated structure.

[0102] In this embodiment, the frame unit 121 is provided with the limiting part 150 and the boss 160, the boss 160 protrudes from the surface of the frame unit 121, the boss 160 can be a stepped surface on the frame unit 121, and the boss 160 and the limiting part 150 are distributed at both ends of the frame unit 121. When the plurality of frame units 121 form the insulating frame 120, the gap between the first protruding ribs 151 and the boss 160 on the adjacent two frame units 121 is reduced, thereby avoiding the connection wire 140 from being stuck between the frame unit 121 and the first protruding rib 151 after being pulled out from between the first protruding rib 151 and the second protruding rib 152.

[0103] It can be understood that the first protruding rib 151 on the adjacent two frame units 121 is arranged adjacent to the boss 160, that is, the first protruding rib 151 on one of the frame units 121 is arranged adjacent to the boss 160 on the other frame unit 121.

[0104] It should be noted that when the connecting line 140 is positioned and supported by the first protruding rib 151 and the second protruding rib 152, if the connecting line 140 is out of the first protruding rib 151 and the second protruding rib 152, the connecting line 140 will be clamped between the first protruding rib 151 and the frame unit 121, and since the gap between the first protruding rib 151 and the frame unit 121 is small, the connecting line 140 is easily damaged. By setting the boss 160 at the position corresponding to the first protruding rib 151 of the adjacent two frame units 121, that is, in the area covered by the first protruding rib 151 on the insulating frame 120, the gap between the frame unit 121 and the first protruding rib 151 is reduced, that is, even if the connecting line 140 is out of the first protruding rib 151 and the second protruding rib 152, the connecting line 140 will be in contact with the boss 160, and the boss 160 protrudes from the insulating frame 120, which can effectively avoid the situation that the connecting line 140 is clamped between the frame unit 121 and the first protruding rib 151.

[0105] In the embodiment of the application, by setting the boss 160 on the frame unit 121, and the boss 160 and the limiting portion 150 are located at both ends of the frame unit 121, so that when the frame unit 121 forms the insulating frame 120, the gap between the adjacent first protruding rib 151 and the boss 160 is small, which effectively avoids the situation that the connecting line 140 is clamped between the frame unit 121 and the first protruding rib 151 after the connecting line 140 is out of the first protruding rib 151 and the second protruding rib 152.

[0106] As shown in Figures 1 to 7 In some embodiments, as shown in the figure, in the axial direction of the stator core 110, the distance between the boss 160 on the frame unit 121 and the first protruding rib 151 on the adjacent frame unit 121 is a preset distance; the preset distance is greater than or equal to 0.2 mm and less than or equal to 0.6 mm.

[0107] In this embodiment, in the axial direction of the stator core 110, the boss 160 on one of the adjacent two frame units 121 and the first protruding rib 151 on the other frame unit 121 are provided with a gap with a preset distance, and the preset distance is less than or equal to 0.6 mm, which can effectively avoid the situation that the connecting line 140 is clamped between the boss 160 and the first protruding rib 151, specifically, the distance between the boss 160 and the first protruding rib 151 is less than the wire diameter of the connecting line 140, thereby effectively avoiding the situation that the connecting line 140 is clamped in the gap between the boss 160 and the first protruding rib 151 after the connecting line 140 is out of the limiting of the first protruding rib 151 and the second protruding rib 152.

[0108] For example, the wire diameter of the connecting line 140 is greater than 0.6 mm.

[0109] In this embodiment, considering the manufacturing tolerance, a gap is arranged between the boss 160 and the first protruding rib 151 in the axial direction of the stator core 110, and the value of the gap is greater than or equal to 0.2 mm, so as to avoid interference between the boss 160 and the first protruding rib 151 when the two adjacent frame units 121 are combined to form the insulating frame 120.

[0110] It should be noted that the insulating frame 120 is composed of multiple frame units 121, and the distance between the first protruding rib 151 and the boss 160 is the distance between the first protruding rib 151 of one frame unit 121 and the boss 160 of another frame unit 121. Due to the manufacturing tolerance, the distance between the first protruding rib 151 and the boss 160 is set to be less than or equal to 0.6 mm, which effectively avoids interference between the first protruding rib 151 and the boss 160 after the two frame units 121 are installed.

[0111] In the embodiments of the present application, the distance between the first protruding rib 151 and the boss 160 is set to be less than or equal to 0.6 mm, which effectively avoids the disengaged connecting wire 140 being stuck in the gap between the first protruding rib 151 and the boss 160, and the distance between the first protruding rib 151 and the boss 160 is set to be greater than or equal to 0.2 mm, which avoids interference between the boss 160 and the first protruding rib 151.

[0112] Figure 8 The structure of the motor provided in some embodiments of the present application is shown, and one embodiment of the present application provides a motor 200, which comprises: the stator assembly 100 in any of the above embodiments; a rotor assembly, which is arranged inside the stator assembly 100; and a rotating shaft, which is arranged in the rotor assembly.

[0113] In the embodiments of the present application, the motor 200 comprises the stator assembly 100, the rotor assembly 201 and the rotating shaft 202. Under the condition that the motor 200 is powered, the rotor assembly 201 can drive the rotating shaft 202 to rotate under the magnetic field of the stator assembly 100. The stator assembly 100 is the stator assembly 100 in any of the above embodiments, and thus has all the technical effects of the stator assembly in any of the above embodiments, which will not be described here.

[0114] For example, the motor 200 is a three-phase motor.

[0115] Figure 9 The structure of the cleaning device provided in some embodiments of the present application is shown, and Figure 9As shown, one embodiment of the utility model discloses a cleaning equipment 300, comprising: the body 301, the motor 200 in any one embodiment, motor 200 is located in the body 301 within. Motor 200 is the motor 200 in any one embodiment, thus has all the technical effects of the motor in any one embodiment, here no longer repeat.

[0116] Exemplarily, the cleaning equipment 300 is a drum washing machine, a pulsator washing machine.

[0117] Need to make clear is, in the utility model's claims, specification and drawing, the term "multiple" then points to two or two or more, unless there is additional explicit limitation, the orientation or position relation that the term "on", "under" etc. indicates is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and make the description process more simple, and not for indicating or implying that the device or element must have the specific orientation described, with specific orientation configuration and operation, therefore these descriptions can not be understood as the limitation of the utility model, the terms "connection", "installation", "fixing" etc. should be understood broadly, for example, "connection" can be the fixed connection between multiple objects, also can be the detachable connection between multiple objects, or integrally connected, can be the direct connection between multiple objects, also can be indirectly connected through the intermediate medium between multiple objects. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances of the above data.

[0118] In the claims, specification and drawing of the utility model, the description of the terms "one embodiment", "some embodiments", "specific embodiment" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the claims, specification and drawing of the utility model, the illustrative representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0119] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, for ordinary skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A stator assembly characterized by, The stator assembly comprises: a stator core; an insulation frame arranged on the stator core; a plurality of windings arranged on the insulation frame between the windings and the stator core, each of the windings comprising a plurality of coils arranged at intervals in a circumferential direction of the stator core; a connecting wire arranged in the circumferential direction of the stator core, the connecting wire being used to connect two coils of the same phase of the windings; wherein the insulation frame is provided with a plurality of limiting portions arranged at intervals in the circumferential direction of the stator core, the limiting portions are provided with a first protruding rib protruding from the limiting portions in the circumferential direction of the stator core, and the first protruding rib protrudes from one end of the limiting portion away from the side of the windings, and the first protruding rib is used to support the connecting wire in the axial direction of the stator core.

2. The stator assembly according to claim 1, wherein: the side of the limiting portion away from the windings is further provided with a second protruding rib, the first protruding rib and the second protruding rib are arranged at intervals in the axial direction of the stator core, and the connecting wire is located between the first protruding rib and the second protruding rib; wherein, in the circumferential direction of the stator core, the first protruding rib protrudes outward of the limiting portion compared to the second protruding rib.

3. The stator assembly according to claim 1, wherein: in the circumferential direction of the stator core, the first end of the limiting portion is provided with a first round corner, and the second end of the limiting portion is provided with a second round corner.

4. The stator assembly of claim 1, wherein, The limiting portion is further provided with a reinforcing rib extending at least partially in the axial direction of the stator core.

5. The stator assembly of claim 4, wherein, The reinforcing rib is located on the side of the limiting portion away from the windings, and the reinforcing rib is provided with a third round corner on the side facing the connecting wire.

6. The stator assembly according to any one of claims 1 to 5, wherein: the insulation frame comprises a plurality of frame units distributed in the circumferential direction of the stator core; one of the coils is arranged on each of the frame units, and one of the limiting portions is arranged on each of the frame units.

7. The stator assembly according to claim 6, wherein: the frame unit comprises a winding slot, and the coil is located in the winding slot; the frame unit and the limiting portion are of an integrated structure.

8. The stator assembly of claim 7, wherein, Each of the frame units is provided with a boss, wherein, in the circumferential direction of the stator core, the boss and the limiting portion are located at two ends of the frame unit.

9. The stator assembly according to claim 8, wherein: in the axial direction of the stator core, the spacing between the boss on the frame unit and the first protruding rib on the adjacent frame unit is a preset spacing; the preset spacing is greater than or equal to 0.2 mm and less than or equal to 0.6 mm.

10. An electric machine characterized by The stator assembly according to any one of claims 1 to 9; a rotor assembly arranged inside the stator assembly; a rotating shaft arranged through the rotor assembly. The rotor assembly comprises:

11. A cleaning apparatus, characterized by a body; ​ The electric motor of claim 10, wherein the electric motor is disposed in the body.

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