Disc type motor, power assembly and electric automobile

Abstract

The invention provides a disc type motor, a power assembly and an electric vehicle. The disc type motor comprises a stator and a rotor, the stator and the rotor are adjacently arranged in the axial direction of the disc type motor, and the stator comprises a stator iron core, a plurality of winding frames and a stator winding. The end face, facing the rotor, of the stator core comprises a plurality of protrusions, and the protrusions are arranged at intervals in the circumferential direction of the disc type motor. And each winding frame is used for surrounding and wrapping the peripheral surface of one bulge. The stator winding comprises a plurality of winding coils, and each winding coil is wound on a winding frame. In the disc type motor provided by the invention, each winding frame can surround and wrap the outer peripheral surface of one bulge, so that the creepage distance of each winding frame is the length of the outer peripheral surface of one bulge, the creepage distance of the winding frame of the disc type motor is ensured, and the reliability of the winding frame is relatively high; therefore, the performance of the disc type motor is improved.

Description

Technical Field

[0001] The present application relates to the technical field of motors, and more particularly, to a disc motor, a powertrain, and an electric vehicle. Background Art

[0002] The disc motor can also be called an axial permanent magnet motor or an axial flux motor. Due to its compact structure, high efficiency, and high power density, it is suitable for use in electric vehicles.

[0003] In order to achieve mutual insulation between the stator winding and the stator core, a winding frame can be provided between the stator winding and the stator core. However, the creepage distance of the existing winding frame is difficult to ensure, resulting in low reliability of the winding frame. Summary of the Invention

[0004] The present application provides a disc motor, a powertrain, and an electric vehicle. The winding frame of the disc motor can ensure creepage distance, making the winding frame highly reliable, thereby improving the performance of the disc motor, and further improving the performance of the powertrain and the electric vehicle.

[0005] In a first aspect, a disc motor is provided. The disc motor includes a stator and a rotor, the stator and rotor being arranged adjacent to each other along the axial direction of the disc motor. The stator includes a stator core, a plurality of winding frames, and a stator winding. The end surface of the stator core facing the rotor includes a plurality of protrusions, which are spaced apart along the circumference of the disc motor. Each winding frame is configured to surround and wrap around the outer circumference of a protrusion. The stator winding includes a plurality of winding coils, each wound around a winding frame.

[0006] In the disc motor provided in the embodiment of the present application, since each winding frame can surround and wrap a raised outer peripheral surface, the creepage distance of each winding frame is the length of a raised outer peripheral surface, thereby ensuring the creepage distance of the winding frame of the disc motor, making the winding frame more reliable, thereby improving the performance of the disc motor.

[0007] In one implementation, each winding frame includes two insert pairs, which are connected to each other along the radial direction of the disc motor.

[0008] By wrapping one of the two plug-ins of each winding frame around part of the outer circumference of a protrusion and wrapping the other plug-in around the remaining part of the outer circumference of a protrusion, and docking the two plug-ins along the radial direction of the disc motor, the installation between each winding frame and each protrusion can be achieved, making the installation process between each winding frame and each protrusion simple.

[0009] In one implementation, at least one of the two insert pairs of each winding frame includes two sub-insert pairs, and the two sub-insert pairs are connected to each other along the circumference of the disc motor.

[0010] By docking the two sub-pairs of plug-ins along the circumference of the disc motor, installation between at least one pair of plug-ins of each winding frame and each protrusion can be achieved, making the installation process of at least one pair of plug-ins of each winding frame and each protrusion simple.

[0011] In one implementation, the outer circumferential surface of each protrusion includes two circumferential outer surfaces arranged opposite to each other along the circumference of the disc motor. Each mating insert of each winding frame includes multiple partitions. Each partition of each mating insert of each winding frame is used to wrap around one circumferential outer surface of a protrusion. Each partition of each mating insert includes a side surface facing the other mating insert. A side surface of each partition of each mating insert includes a notch, and the notch extends through each partition along the axial direction of the disc motor.

[0012] In each winding frame, two mating inserts are butted together radially along the disc motor. Therefore, a notch is provided on the side of one partition plate of one mating insert facing the other. This allows the notch on one partition plate of one mating insert to mate with the other mating insert in the radial direction of the disc motor, preventing the two mating inserts of each winding frame from loosening relative to each other along the circumferential direction of the disc motor. This also simplifies the assembly process for the two mating inserts of each winding frame.

[0013] In one implementation, the size of the end of each protrusion facing the rotor along the circumference of the disc motor is larger than the size of the rest of the protrusion. The end of each protrusion includes an axial outer circumferential surface facing away from the rotor. The other partition of each matching insert of the winding frame is used to wrap an axial outer circumferential surface of the end of the protrusion. The other partition of each matching insert includes a side surface facing the other matching insert. A side surface of the other partition of each matching insert includes a notch, and the notch extends through the other partition along the circumference of the disc motor.

[0014] In each winding frame, another partition of one insert can abut against the end of each protrusion toward the rotor along the axial direction of the disc motor, thus preventing one insert from moving along the axial direction of the disc motor.

[0015] Furthermore, because the two mating inserts mate with each other along the radial direction of the disc motor, a notch is provided on the side of the other partition plate of one mating insert facing the other mating insert. This allows the notch on the other partition plate of one mating insert to mate with the other mating insert along the radial direction of the disc motor, preventing the two mating inserts of each winding frame from loosening relative to each other along the circumferential direction of the disc motor. Furthermore, the assembly process for the two mating inserts of each winding frame is simplified.

[0016] In one implementation, the notch includes a side surface facing away from or toward the rotor, and one side surface of the notch includes a protrusion, which is arranged along one end of the notch in the radial direction of the disc motor and on a side of the other end of the notch facing away from the central axis of the stator core. The distance between the protrusion on one side surface of the notch in the radial direction of the disc motor and the one end of the notch is smaller than the distance between the protrusion on one side surface of the notch and the other end of the notch.

[0017] The protrusion on one side of the notch of the other partition of a plug-in plug-in along the radial direction of the disc motor can be engaged with the other plug-in plug-in to prevent the two plug-in plugs of each winding frame from falling off along the radial direction of the disc motor, thereby realizing the interlocking of the two plug-in plugs of each winding frame along the radial direction of the disc motor.

[0018] In one implementation, the protrusion on one side of the notch includes two end surfaces arranged opposite to each other in the radial direction of the disc motor, and an angle between at least one of the two end surfaces and the side of the notch is an obtuse angle.

[0019] If the angle between the end face of the protrusion in the notch close to the other plug-in and one side face of the notch is an obtuse angle, that is, the end face of the protrusion in the notch close to the other plug-in is provided with a chamfer, then the other plug-in can be quickly inserted into the notch of one plug-in to achieve snap connection with the one plug-in, thereby improving the assembly efficiency of the two plug-ins.

[0020] If the angle between the end face of the protrusion in the notch facing away from the other plug-in and one side face of the notch is an obtuse angle, that is, the end face of the protrusion in the notch facing away from the other plug-in is provided with a chamfer, then the other plug-in can be quickly inserted into the notch of one plug-in to achieve snap connection with the one plug-in, thereby improving the assembly efficiency of the two plug-ins.

[0021] In one implementation, one side surface of the other partition plate of one pair of inserts in each winding frame is arranged opposite one side surface of the other partition plate of another pair of inserts in the axial direction of the disc motor. The distance between one side surface of the other partition plate of one pair of inserts and one side surface of the other partition plate of another pair of inserts in the axial direction of the disc motor is greater than or equal to the size of the protrusion on one side surface of the other partition plate of one pair of inserts and the size of the protrusion on one side surface of the other partition plate of another pair of inserts, respectively. In the radial direction of the disc motor, the projection of the protrusion on one side surface of the other partition plate of one pair of inserts overlaps with the projection of the protrusion on one side surface of the other partition plate of another pair of inserts.

[0022] The protrusion on one side of the notch of the other partition of one plug-in unit along the radial direction of the disc motor can be engaged with the protrusion on one side of the notch of the other partition of another plug-in unit to prevent the two plug-in units of each winding frame from falling off along the radial direction of the disc motor, thereby realizing the interlocking of the two plug-in units of each winding frame along the radial direction of the disc motor.

[0023] In one implementation, a further partition of a mating insert of each winding frame is arranged adjacent to a protrusion in the radial direction of the disc motor. The further partition includes a side surface facing away from the protrusion. One side surface of the further partition includes multiple grooves, which are spaced apart in the axial direction of the disc motor. Each groove is configured to accommodate a winding coil. The size of each groove along the circumference of the stator core is equal to that of the further partition. This allows the winding coil to be accommodated in the grooves, saving space within the stator core.

[0024] In one implementation, a further partition of a counter-insertion of each winding frame is arranged on a side of a protrusion facing the central axis of the stator core, and each groove includes a groove bottom and a groove opening arranged in the radial direction of the disc motor. The groove bottom of each groove is projected along the axial direction of the disc motor as a straight line or a curve, with the curve curving in the radial direction of the disc motor toward the central axis of the stator core.

[0025] In this implementation, the further partition of the pair of inserts can be a radial partition 12222 of another sub-pair of inserts 1222 described below. In this way, the winding coil wound in each groove on one side of the further partition of the pair of inserts can cling to the bottom of the groove, thereby securing the winding coil.

[0026] In one implementation, a further partition of a counter-insertion of each winding frame is arranged on a side of a protrusion facing away from the central axis of the stator core, and each groove includes a groove bottom and a groove opening arranged in the radial direction of the disc motor. The groove bottom of each groove is projected along the axial direction of the disc motor as a curve, with the curve curving in the radial direction of the disc motor away from the central axis of the stator core.

[0027] In this implementation, the further partition of the pair of inserts can be a radial partition 12212 of a sub-pair of inserts 1221 described below of another pair of inserts 122. In this way, the winding coil wound in each groove on one side of the further partition of the pair of inserts can cling to the bottom of the groove, thereby securing the winding coil.

[0028] In one implementation, a further partition of each winding frame's mating insert is arranged on a side of the further partition facing away from the rotor along the axial direction of the disc motor. The further partition includes a through-hole extending axially through the disc motor, the through-hole communicating with a side surface of the further partition, and the side surface of the further partition faces away from a protrusion. In this way, the through-hole secures the stator winding coils and prevents the stator winding from moving.

[0029] In one implementation, another partition of a sub-pair of plug-ins of a pair of plug-ins of each winding frame along the circumference of the motor includes a side facing the other sub-pair of plug-ins, one side of another partition of a sub-pair of plug-ins includes a notch, and the notch passes through another partition of a sub-pair of plug-ins along the axial direction of the disc motor.

[0030] Because the two sub-pairs are butted together along the circumference of the disc motor, a notch is provided on the side of a partition plate in one sub-pair facing the other sub-pair. This allows the notch in the partition plate of one sub-pair to be mated with the other sub-pair along the circumference of the disc motor, preventing the two sub-pairs of each winding frame from loosening relative to each other in the radial direction of the disc motor. Furthermore, the assembly process of the two sub-pairs is simplified.

[0031] In a second aspect, a power assembly is provided, which includes a reducer and a disc motor as described in any one of the first aspect and any possible implementation of the first aspect, wherein the motor shaft of the disc motor is drivingly connected to the input shaft of the reducer.

[0032] In a third aspect, an electric vehicle is provided. The electric vehicle includes wheels, a transmission mechanism, and the powertrain as described in the third aspect, wherein the powertrain drives the wheels through the transmission mechanism.

[0033] Since the disc motor provided by the first aspect has higher performance, the performance of the powertrain provided by the second aspect and the performance of the electric vehicle provided by the third aspect can also be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the structure of an electric vehicle provided in an embodiment of the present application.

[0035] Figure 2 and Figure 3 They are respectively schematic structural diagrams of a flat motor rotor provided in an embodiment of the present application.

[0036] Figure 4 and Figure 5 They are respectively structural schematic diagrams of the winding frames provided in the embodiments of the present application.

[0037] Figure 6A schematic diagram of the structure of another plug-in provided in an embodiment of the present application.

[0038] Figures 7 to 10 Each of them is a schematic diagram of the structure of a plug-in provided in an embodiment of the present application.

[0039] Figure 11 for Figure 10 Shown is an enlarged schematic diagram of part B of the insert.

[0040] Figure 12 A schematic diagram of the structure of a plug-in provided in an embodiment of the present application.

[0041] Figure 13 for Figure 12 Shown is an enlarged schematic diagram of part D of the insert.

[0042] Figure 14 for Figure 10 Shown is an enlarged schematic diagram of part C of the insert.

[0043] Figure 15 for Figure 12 Shown is an enlarged schematic diagram of part E of the insert.

[0044] Figures 16 to 18 They are respectively structural schematic diagrams of another sub-pair plug-in in another pair plug-in provided in an embodiment of the present application.

[0045] Figures 19 to 21 Each of them is a schematic diagram of the structure of a sub-pair plug-in in another pair plug-in provided in an embodiment of the present application.

[0046] Figure 22 for Figure 5 An enlarged schematic diagram of part A of the winding frame is shown.

[0047] Figure 23 A schematic diagram of the structure of another plug-in provided in an embodiment of the present application.

[0048] Figure 24 for Figure 23 An enlarged schematic diagram of part F of the winding frame is shown. DETAILED DESCRIPTION

[0049] The technical solution in this application will be described below with reference to the accompanying drawings.

[0050] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; “and / or” in this article is merely a way to describe the association relationship of associated objects, indicating that three relationships can exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0051] The terms "upper", "lower", "inside", "outside", etc. in the embodiments of the present application indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0052] References to "some embodiments" and the like in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in some embodiments" and the like that appear in different places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0053] The “equal / equal” mentioned in this application does not mean equal / equal in a strict sense, but is within an allowable error range. The “perpendicular” does not mean perpendicular in a strict sense, but is within an allowable error range.

[0054] In the embodiments of this application, the same reference numerals represent the same component or part. In the embodiments of this application, for multiple identical parts, only one of the parts may be labeled with a reference numeral in the drawings as an example. The same reference numerals apply to other identical parts or components. In addition, the sizes and dimensions of the parts shown in the drawings are for illustrative purposes only.

[0055] An embodiment of the present application provides a disc motor comprising a stator and a rotor, the stator and rotor being arranged adjacent to each other along the axial direction of the disc motor. The stator comprises a stator core, a plurality of winding frames, and a stator winding. The end surface of the stator core facing the rotor comprises a plurality of protrusions, which are spaced apart along the circumference of the disc motor. Each winding frame is configured to surround and enclose the outer circumference of a protrusion. The stator winding comprises a plurality of winding coils, each wound around a winding frame.

[0056] In the disc motor provided in the embodiment of the present application, since each winding frame can surround and wrap a raised outer peripheral surface, the creepage distance of each winding frame is the length of a raised outer peripheral surface, thereby ensuring the creepage distance of the winding frame of the disc motor, making the winding frame more reliable, thereby improving the performance of the disc motor.

[0057] The present application also provides an electric vehicle. Figure 1 The electric vehicle provided in the embodiment of the present application is first described in detail.

[0058] Figure 1 This is a schematic structural diagram of an electric vehicle provided in an embodiment of the present application. Figure 1 As shown, the electric vehicle 1 includes one or more powertrains 10, batteries 20, wheels 30, and a transmission mechanism. The powertrain 10 and the transmission mechanism are connected, and the powertrain 10 is used to receive power from the battery 20, convert the electrical energy into mechanical energy, and drive the wheels 30 to rotate through the transmission mechanism.

[0059] The electric vehicles provided in the embodiments of the present application include pure electric vehicles, hybrid electric vehicles, extended-range electric vehicles, plug-in hybrid electric vehicles or new energy vehicles, etc. Among them, pure electric vehicles are also called pure electric vehicle / battery electric vehicle, or simply pure EV / battery EV. Hybrid electric vehicles are also called hybrid electric vehicles, or simply HEV. Extended-range electric vehicles are also called range extended electric vehicles, or simply REEV. Plug-in hybrid electric vehicles are also called plug-in hybrid electric vehicles, or simply PHEV. New energy vehicles are also called new energy vehicles, or simply NEV.

[0060] The powertrain 10 includes a disc motor and a reducer. The motor shaft of the disc motor is connected to the input shaft of the reducer. The output end of the motor shaft transmits power to the wheels 30 of the electric vehicle through the reducer, providing power for the wheels 30.

[0061] The powertrain 10 may also include a motor controller, which is connected to the battery 20. The motor controller receives DC power transmitted by the battery 20 through a DC input interface. The motor controller converts the DC power into AC power and transmits it to the terminal of the motor winding through an AC output interface to control the start or stop, forward or reverse rotation, speed increase or decrease, drive torque increase or decrease, braking torque increase or decrease, etc. of the motor.

[0062] The disc motor also includes a stator and a rotor, which are arranged adjacent to each other along the axial direction of the disc motor. The motor shaft passes through the stator and is rotatably connected to the stator, and the motor shaft passes through the rotor and is fixedly connected to the rotor.

[0063] The following combination Figures 2 to 24 The structure of the stator of the disc motor provided in the embodiment of the present application is described in detail.

[0064] like Figure 2 and Figure 3As shown, the stator 100 includes a stator core 110 , and the end surface of the stator core 110 facing the rotor includes a plurality of protrusions P1 , and the plurality of protrusions P1 are arranged at intervals along the circumferential direction of the disk motor.

[0065] In some embodiments, such as Figure 3 As shown, the stator core 110 includes an inner circumferential surface 111 and an outer circumferential surface 112 that are arranged in opposite directions along the radial direction of the stator core 110. The size of each protrusion P1 in the radial direction of the stator core 110 is equal to the distance between the inner circumferential surface 111 and the outer circumferential surface 112 of the stator core 110. The outer circumferential surface S of each protrusion P1 includes two circumferential outer circumferential surfaces S1-S2 and two radial outer circumferential surfaces S3-S4. The two circumferential outer circumferential surfaces S1-S2 are arranged in opposite directions along the circumference of the stator core 110, and the two radial outer circumferential surfaces S3-S4 are arranged in opposite directions along the radial direction of the stator core 110. In some embodiments, the projection of each circumferential outer circumferential surface S1-S2 of each protrusion P1 along the axial direction of the stator core 110 passes through the radial direction of the stator core 110. In addition, the projection of a radial outer peripheral surface S3 of each protrusion P1 along the axial direction of the stator core 110 overlaps with the projection of the inner peripheral surface 111 of the stator core 110, and the projection of another radial outer peripheral surface S4 of each protrusion P1 along the axial direction of the stator core 110 overlaps with the projection of the outer peripheral surface 112 of the stator core 110.

[0066] In this way, the stator core 110 can be wound from a straight silicon steel sheet with multiple teeth, simplifying the manufacturing process of the stator core 110. For example, one end of the straight silicon steel sheet along the width direction of the straight silicon steel sheet includes multiple teeth, and the multiple teeth are evenly spaced along the length direction of the straight silicon steel sheet. The straight silicon steel sheet is wound multiple times along the length direction of the straight silicon steel sheet, and the projections of a tooth on each of two adjacent turns of silicon steel sheet overlap along the axial direction of the stator core 110 to form a protrusion P1 of the stator core 110.

[0067] It should be noted that the axial direction of the stator core 110 can also be understood as the axial direction of the disc motor or the width direction of the straight silicon steel sheet, the radial direction of the stator core 110 can also be understood as the radial direction of the disc motor, and the circumferential direction of the stator core 110 can also be understood as the circumferential direction of the disc motor.

[0068] It should be understood that the interval between two adjacent protrusions P1 can be called a winding slot. In some embodiments, in order to balance the magnetic leakage loss, noise and heat dissipation effect of the disc motor and improve the efficiency of the disc motor, the winding slot is set as a semi-closed winding slot. Figure 3 As shown, each protrusion P1 includes an end portion P along the axial direction of the stator core 110. 11 and other parts of P 12 , the end P of each protrusion P1 11 Arranged on the other parts P of each protrusion P112 Towards one side of the rotor. The end P of each protrusion P1 along the circumference of the stator core 110 11 The size of each protrusion P1 is larger than the other parts P 12 In this embodiment, the outer peripheral surface S of each protrusion P1 also includes the end portion P of each protrusion P1. 11 The two axial outer peripheral surfaces S5~S6 are both away from the rotor.

[0069] like Figure 2 and Figure 3 As shown, the stator 100 further includes a plurality of winding frames 120, each of which is configured to surround and wrap the outer circumference S of a protrusion P1. The stator 100 also includes a stator winding, which includes a plurality of winding coils, each of which is wound around a winding frame 120. Thus, the winding coils are insulated from the stator core 110 by the winding frames 120. Because each winding frame 120 can surround and wrap the outer circumference S of a protrusion P1, the creepage distance of each winding frame 120 is the length of the outer circumference S of a protrusion P1. This ensures the creepage distance of the winding frames 120 of the disc motor, increases the reliability of the winding frames 120, and thus improves the performance of the disc motor.

[0070] If the outer peripheral surface S of each protrusion P1 only includes two circumferential outer peripheral surfaces S1-S2 and two radial outer peripheral surfaces S3-S4, each winding frame 120 is used to surround and wrap the two circumferential outer peripheral surfaces S1-S2 and two radial outer peripheral surfaces S3-S4 of a protrusion P1.

[0071] If the outer peripheral surface S of each protrusion P1 includes not only two circumferential outer peripheral surfaces S1-S2 and two radial outer peripheral surfaces S3-S4, but also the end P of each protrusion P1 11 Each winding frame 120 is used to surround and wrap the two circumferential outer surfaces S1-S2, two radial outer surfaces S3-S4 of a protrusion P1, and the end P of each protrusion P1. 11 Two axial outer peripheral surfaces S5~S6.

[0072] In some embodiments, such as Figures 3 to 5As shown, each winding frame 120 includes two mating inserts 121-122, which are connected to each other along the radial direction of the stator core 110. In this way, one mating insert 121 is wrapped around a portion of one circumferential outer surface S1 of a protrusion P1, a portion of another circumferential outer surface S2, and a radial outer surface S3 of a protrusion P1, and the other mating insert 122 is wrapped around the remaining portion of one circumferential outer surface S1 of a protrusion P1, the remaining portion of another circumferential outer surface S2, and another radial outer surface S4 of a protrusion P1. The two mating inserts 121-122 are then connected along the radial direction of the stator core 110. This allows each winding frame 120 to be installed with each protrusion P1, simplifying the installation process of each winding frame 120 with each protrusion P1.

[0073] It should be noted that the two mating inserts 121-122 being radially opposite to each other along the stator core 110 can be understood as being radially opposite to each other along the stator core 110. In other words, the mating portions of the two mating inserts 121-122 partially overlap along the radial direction of the stator core 110. This not only ensures the creepage distance of the winding frame 120, but also improves the insulation performance between the winding coil and the stator core 110.

[0074] In some embodiments, at least one of the two insert pairs of each winding frame 120 includes two sub-insert pairs, and the two sub-insert pairs are connected to each other along the circumference of the stator core 110 .

[0075] For example, Figures 4 to 6 As shown, the other insert 122 of each winding frame 120 includes two sub-inserts 1221-1222, which are connected to each other along the circumference of the stator core 110. In this way, by wrapping one sub-insert 1221 of the other insert 122 around the remaining portion of the other circumferential outer surface S2 of a protrusion P1 and a portion of the other radial outer surface S4 of a protrusion P1, and wrapping the other sub-insert 1222 of the other insert 122 around the remaining portion of the one circumferential outer surface S1 of a protrusion P1 and the remaining portion of the other radial outer surface S4 of a protrusion P1, and then butting the two sub-inserts 1221-1222 along the circumference of the stator core 110, the installation between the other insert 122 of each winding frame 120 and a protrusion P1 can be achieved, making the installation process of the other insert 122 of each winding frame 120 and a protrusion P1 simple.

[0076] It should be noted that the two sub-pairs of inserts 1221-1222 being connected circumferentially of the stator core 110 can be understood as the two sub-pairs of inserts 1221-1222 being inserted circumferentially of the stator core 110. In other words, the two sub-pairs of inserts 1221-1222 partially overlap at their joints along the circumference of the stator core 110. This not only ensures the creepage distance of the winding frame 120, but also improves the insulation performance between the winding coil and the stator core 110.

[0077] The following combination Figures 7 to 15 The structure of the plug-in 121 provided in an embodiment of the present application is described in detail.

[0078] like Figures 7 to 10 、 Figure 12 As shown, a plug-in assembly 121 includes a circumferential partition 1211, another circumferential partition 1212, and a radial partition 1223. The radial partition 1223 is used to fixedly connect the circumferential partition 1211 and the other circumferential partition 1212, and the circumferential partitions 1211 and 1212 are arranged opposite each other along the circumference of the stator core 110. A circumferential partition 1211 of a plug-in assembly 121 is arranged adjacent to a circumferential outer surface S1 of a protrusion P1 along the circumference of the stator core 110. The circumferential partition 1211 of a plug-in assembly 121 is used to wrap around a portion of a circumferential outer surface S1 of a protrusion P1. Along the axial direction of the stator core 110, the size of the circumferential partition 1211 of a plug-in assembly 121 is equal to the size of the circumferential outer surface S1 of a protrusion P1. Another circumferential partition 1212 of a plug-in element 121 is arranged adjacent to another circumferential outer surface S2 of a protrusion P1 along the circumference of the stator core 110. The other circumferential partition 1212 of a plug-in element 121 is used to wrap around a portion of the other circumferential outer surface S2 of a protrusion P1. The size of the other circumferential partition 1212 of a plug-in element 121 along the axial direction of the stator core 110 is equal to the size of the other circumferential outer surface S2 of a protrusion P1. A radial partition 1223 of a plug-in element 121 is arranged on the side of a protrusion P1 facing the central axis of the stator core 110. The radial partition 1223 of a plug-in element 121 is used to wrap around a radial outer surface S3 of a protrusion P1. The size of the radial partition 1223 of a plug-in element 121 along the axial direction of the stator core 110 is equal to the size of the radial outer surface S3 of a protrusion P1.

[0079] In this way, along the radial direction of the stator core 110 away from the central axis of the stator core 110, a plug-in unit 121 is pushed into two adjacent winding slots from the side of the inner circumferential surface 111 of the stator core 110, so that a circumferential partition 1211 of a plug-in unit 121 wraps a part of a circumferential outer circumferential surface S1 of a protrusion P1, another circumferential partition 1212 wraps a part of another circumferential outer circumferential surface S2 of a protrusion P1, and the radial partition 1223 wraps a radial outer circumferential surface S3 of a protrusion P1, thereby completing the installation of a plug-in unit 121.

[0080] In some embodiments, such as Figure 7 and Figure 10 As shown, a circumferential partition 1211 of a mating insert 121 includes a side surface E1 facing the other mating insert 122. This side surface E1 includes a notch N1. The notch N1 extends through the circumferential partition 1211 of the mating insert 121 along the axial direction of the stator core 110. This allows the notch N1 on the circumferential partition 1211 of the mating insert 121 to be mated with the other mating insert 122 in the radial direction of the stator core 110, preventing the two mating inserts 121-122 of each winding frame 120 from loosening along the circumferential direction of the stator core 110. Furthermore, the assembly process for the two mating inserts 121-122 of each winding frame 120 is simplified.

[0081] In some embodiments, such as Figure 8 As shown, the other circumferential partition plate 1212 of one mating insert 121 includes a side surface E2 facing the other mating insert 122. This side surface E2 of the other circumferential partition plate 1212 of one mating insert 121 includes a notch N2. The notch N2 extends axially along the stator core 110 through the other circumferential partition plate 1212 of one mating insert 121. This allows the notch N2 on the other circumferential partition plate 1212 of one mating insert 121 to be mated with the other mating insert 122 in the radial direction of the stator core 110, preventing the two mating inserts 121-122 of each winding frame 120 from loosening along the circumferential direction of the stator core 110. Furthermore, the assembly process for the two mating inserts 121-122 of each winding frame 120 is simplified.

[0082] In some embodiments, such as Figure 9 As shown, a radial partition 1223 of a plug-in 121 includes a side surface facing away from a protrusion P1, and one side surface of the radial partition 1223 of the plug-in 121 includes a plurality of grooves G1, and the plurality of grooves G1 are arranged at intervals along the axial direction of the stator core 110, each groove G1 is used to accommodate a winding coil, and the size of each groove G1 along the circumference of the stator core 110 is equal to the size of a radial partition 1223 of the plug-in 121.

[0083] In some implementations, each groove G1 on one side of a radial partition 1223 of an insert 121 includes a groove bottom and a groove opening arranged radially along the stator core 110. The groove bottom of each groove G1 is projected along the axial direction of the stator core 110 as a straight line or a curve, with the curve curving in the radial direction of the stator core 110 toward the central axis of the stator core 110. In this way, the winding coil wound in each groove G1 on one side of the radial partition 1223 of the insert 121 can cling to the groove bottom of the groove G1, thereby securing the winding coil.

[0084] In some embodiments, the connection between the groove G1 on one side of the radial partition 1223 of a counter-insert 121 and a circumferential partition 1211 of a counter-insert 121 has a chamfer, which can reduce damage to the winding coil and improve the slot fill rate.

[0085] In some embodiments, the connection between the groove G1 on one side of the radial partition 1223 of a counter-insert 121 and the other circumferential partition 1212 of a counter-insert 121 has a chamfer, which can reduce damage to the winding coil and improve the slot fill rate.

[0086] In some embodiments, such as Figures 7 to 10 、 Figure 12 As shown, a plug-in unit 121 further includes a flanged partition 1214, a flanged partition 1214 of a plug-in unit 121 and a circumferential partition 1211 of a plug-in unit 121 are connected to an end P of a protrusion P1. 11 One end of the plug-in 121 is fixedly connected, and a flanged partition 1214 of a plug-in 121 is arranged on the side of a circumferential partition 1211 of a plug-in 121 away from another circumferential partition 1212 of a plug-in 121. A flanged partition 1214 of a plug-in 121 is used to wrap an end P of a protrusion P1 11 Thus, a flanged partition 1214 of a plug-in 121 can abut against an end P of a protrusion P1 along the axial direction of the stator core 110. 11 In this way, a plug-in unit 121 can be prevented from moving along the axial direction of the disc motor.

[0087] In some embodiments, such as Figure 10As shown, a flanged partition 1214 of one mating insert 121 includes a side surface E3 facing the other mating insert 122. This side surface E3 of the flanged partition 1214 of one mating insert 121 includes a notch N3. The notch N3 extends through the flanged partition 1214 of one mating insert 121 along the circumference of the stator core 110. This allows the notch N3 on the flanged partition 1214 of one mating insert 121 to be mated with the other mating insert 122 in the radial direction of the stator core 110, preventing the two mating inserts 121-122 of each winding frame 120 from loosening along the circumference of the stator core 110. Furthermore, the assembly process for the two mating inserts 121-122 of each winding frame 120 is simplified.

[0088] In some embodiments, such as Figure 10 As shown, the notch N3 on a side surface E3 of a flanged partition 1214 of a counter-insert 121 is communicated with the notch N1 on a side surface E1 of a circumferential partition 1211 of a counter-insert 121 .

[0089] In some embodiments, such as Figure 10 and Figure 11 As shown, a notch N3 of a side surface E3 of a flanged partition 1214 of an insert 121 includes a side surface N facing away from the rotor. 31 , one side of the gap N3 31 The protrusion P2 is arranged along one end of the radial notch N3 of the stator core 110 and on the side of the other end of the notch N3 away from the central axis of the stator core, and along a side surface N 31 The distance between the protrusion P2 and one end of the notch N3 is less than one side surface N of the notch N3. 31 Thus, along the radial direction of the stator core 110, a side surface N of the notch N3 of a flanged partition 1214 of a plug-in 121 is 31 The protrusion P2 on the winding frame 120 can be engaged with another plug-in 122 to prevent the two plug-ins 121~122 of each winding frame 120 from loosening along the radial direction of the stator core 110, thereby achieving radial interlocking of the two plug-ins 121~122 of each winding frame 120 along the stator core 110.

[0090] In some embodiments, such as Figure 10 and Figure 11 As shown, one side N of the notch N3 31 The protrusion P2 includes two end surfaces P arranged opposite to each other in the radial direction of the stator core 110. 21 ~P 22 At least one of the two end faces is adjacent to a side surface N of the notch N3. 31 The angle between them is an obtuse angle.

[0091] like Figure 11 As shown, the protrusion P2 in the notch N3 is close to an end surface P of another plug-in 122. 21 One side N with notch N3 31 The included angle θ1 is an obtuse angle, that is, the protrusion P2 in the notch N3 is close to an end surface P of another plug-in 122. 21 The chamfer is provided so that the other plug-in unit 122 can be quickly inserted into the notch N3 of one plug-in unit 121 to achieve snap connection with the plug-in unit 121 , thereby improving the assembly efficiency of the two plug-in units 121 - 122 .

[0092] like Figure 11 As shown, the protrusion P2 in the notch N3 is away from the other end surface P of the other plug-in 122. 22 One side N with notch N3 31 The included angle θ2 is an obtuse angle, that is, the protrusion P2 in the notch N3 is away from the other end surface P of the other plug-in 122. 22 The chamfer is provided so that the other plug-in unit 122 can be quickly inserted into the notch N3 of one plug-in unit 121 to achieve snap connection with the plug-in unit 121 , thereby improving the assembly efficiency of the two plug-in units 121 - 122 .

[0093] In some embodiments, such as Figures 7 to 10 、 Figure 12 As shown, one plug-in unit 121 further includes another flanged partition plate 1215, and the other flanged partition plate 1215 of one plug-in unit 121 and the other circumferential partition plate 1212 of one plug-in unit 121 are disposed toward an end P of a protrusion P1. 11 The other flanged partition plate 1215 of the plug-in 121 is arranged on the side of the other circumferential partition plate 1212 of the plug-in 121 away from the one circumferential partition plate 1211 of the plug-in 121. The other flanged partition plate 1215 of the plug-in 121 is used to wrap the end P of a protrusion P1. 11 In this way, another flanged partition plate 1215 of the plug-in unit 121 can abut against an end portion P of a protrusion P1 along the axial direction of the disc motor. 11 In this way, a plug-in unit 121 can be prevented from moving along the axial direction of the disc motor.

[0094] In some embodiments, such as Figure 12As shown, the other flanged spacer 1215 of one mating insert 121 includes a side surface E4 facing the other mating insert 122. This side surface E4 includes a notch N4. The notch N4 extends through the other flanged spacer 1215 of one mating insert 121 along the circumference of the stator core 110. This allows the notch N4 on the other flanged spacer 1215 of one mating insert 121 to be mated with the other mating insert 122 in the radial direction of the disc motor, preventing the two mating inserts 121-122 of each winding frame 120 from loosening along the circumference of the stator core 110. Furthermore, the assembly process for the two mating inserts 121-122 of each winding frame 120 is simplified.

[0095] In some embodiments, such as Figure 12 As shown, the notch N4 on one side E4 of another flanged partition 1215 of one plug-in unit 121 is connected to the notch N2 on one side E2 of another circumferential partition 1212 of one plug-in unit 121 .

[0096] In some embodiments, such as Figure 13 As shown, the notch N4 of one side E4 of another flanged partition 1215 of the plug-in 121 includes a side N facing away from the rotor. 41 , one side of the gap N4 41 The protrusion P3 is arranged along one end of the radial notch N4 of the stator core 110 and on the side of the other end of the notch N4 away from the central axis of the stator core, and along a side surface N 41 The distance between the protrusion P3 and one end of the notch N4 is less than the distance between the protrusion P3 and one end of the notch N4. 41 Thus, along the radial direction of the stator core 110, one side N of the notch N4 of the other flanged partition 1215 of the plug-in 121 is 41 The protrusion P3 on the winding frame 120 can be engaged with another plug-in 122 to prevent the two plug-ins 121~122 of each winding frame 120 from loosening in the radial direction of the stator core 110, thereby achieving radial interlocking of the two plug-ins 121~122 of each winding frame 120 along the stator core 110.

[0097] In some embodiments, one side surface N of the notch N4 41 The protrusion P3 includes two end surfaces P arranged opposite to each other in the radial direction of the stator core 110. 31 ~P 32 At least one of the two end faces is aligned with a side surface N of the notch N4. 41 The angle between them is an obtuse angle.

[0098] like Figure 13As shown, the protrusion P3 in the notch N4 is close to an end surface P of another plug-in 122. 31 One side of the notch N4 41 The included angle θ3 is an obtuse angle, that is, the protrusion P3 in the notch N4 is close to an end surface P of the other plug-in 122. 31 The chamfer is provided so that the other plug-in unit 122 can be quickly inserted into the notch N4 of one plug-in unit 121 to achieve snap connection with the plug-in unit 121 , thereby improving the assembly efficiency of the two plug-in units 121 - 122 .

[0099] like Figure 13 As shown, the protrusion P3 in the notch N4 is away from the other end surface P of the other plug-in 122. 32 One side of the notch N4 41 The included angle θ4 is an obtuse angle, that is, the protrusion P3 in the notch N4 is away from the other end surface P of the other plug-in 122. 32 The chamfer is provided so that the other plug-in unit 122 can be quickly inserted into the notch N4 of one plug-in unit 121 to achieve snap connection with the plug-in unit 121 , thereby improving the assembly efficiency of the two plug-in units 121 - 122 .

[0100] In some embodiments, such as Figures 7 to 10 、 Figure 12 As shown, each insert 121 further includes a flanged partition 1216. Along the axial direction of the stator core 110, the flanged partition 1216 of each winding frame 120 is arranged on the side of the radial partition 1223 of the insert 121 facing away from the rotor. The flanged partition 1216 of each insert 121 is used to securely connect one circumferential partition 1211, another circumferential partition 1212, and the radial partition 1223 of the insert 121. The flanged partition 1216 of each insert 121 includes a through hole T1 extending axially through the stator core 110. The through hole T1 communicates with a side surface 12161 of the flanged partition 1216 of each insert 121, which faces away from the protrusion P1. The through hole T1 is used to accommodate one or more winding coils. In this way, the through hole T1 of the flanged partition 1216 of the plug-in unit 121 can fix the winding coil of the stator winding to prevent the stator winding from moving.

[0101] In some embodiments, such as Figure 10 and Figure 14As shown, another flanged partition 1216 of one mating insert 121 includes a side surface E5 facing the other mating insert 122. One side surface E5 of the flanged partition 1216 of one mating insert 121 includes a notch N5. The notch N5 extends through the flanged partition 1216 of one mating insert 121 along the circumference of the stator core 110. In this way, the notch N5 in the flanged partition 1216 of one mating insert 121 allows for mating with the other mating insert 122 in the radial direction of the stator core 110, preventing the two mating inserts 121-122 of each winding frame 120 from loosening along the circumference of the stator core 110. Furthermore, the assembly process of the two mating inserts 121-122 of each winding frame 120 is simplified.

[0102] In some embodiments, such as Figure 10 and Figure 14 As shown, the notch N5 on a side surface E5 of another flanged partition 1216 of a counter-insert 121 is communicated with the notch N1 on a side surface E1 of a circumferential partition 1211 of a counter-insert 121 .

[0103] In some embodiments, such as Figure 14 As shown, the notch N5 of one side E5 of another flanged partition 1216 of the plug-in 121 includes a notch N5 toward one side N of the flanged partition 1214. 51 , one side of the gap N5 51 The protrusion P4 is arranged along one end of the radial notch N5 of the stator core 110 and on the side of the other end of the notch N5 away from the central axis of the stator core, and along a side surface N 51 The distance between the protrusion P4 and one end of the notch N5 is less than one side surface N of the notch N5. 51 Thus, along the radial direction of the stator core 110, a side surface N1 of the notch N5 of another flanged partition 1216 of the plug-in 121 is formed. 51 The protrusion P4 on the winding frame 120 can be engaged with another plug-in 122 to prevent the two plug-ins 121~122 of each winding frame 120 from loosening along the radial direction of the stator core 110, thereby achieving radial interlocking of the two plug-ins 121~122 of each winding frame 120 along the stator core 110.

[0104] In some embodiments, such as Figure 14 As shown, one side N of the notch N5 51 The protrusion P4 includes two end surfaces P arranged opposite to each other in the radial direction of the stator core 110. 41 ~P 42 At least one of the two end faces is aligned with a side surface N of the notch N5. 51 The angle between them is an obtuse angle.

[0105] like Figure 14 As shown, the protrusion P4 in the notch N5 is close to an end surface P of another plug-in 122. 41 One side with notch N5 51 The included angle θ5 is an obtuse angle, that is, the protrusion P4 in the notch N5 is close to an end surface P of the other plug-in 122. 41 The chamfer is provided so that the other plug-in unit 122 can be quickly inserted into the notch N5 of one plug-in unit 121 to achieve snap connection with the plug-in unit 121 , thereby improving the assembly efficiency of the two plug-in units 121 - 122 .

[0106] like Figure 14 As shown, the protrusion P4 in the notch N5 is away from the other end surface P of the other plug-in 122. 42 One side with notch N5 51 The included angle θ6 is an obtuse angle, that is, the protrusion P4 in the notch N5 is away from the other end surface P of the other plug-in 122. 42 The chamfer is provided so that the other plug-in unit 122 can be quickly inserted into the notch N5 of one plug-in unit 121 to achieve snap connection with the plug-in unit 121 , thereby improving the assembly efficiency of the two plug-in units 121 - 122 .

[0107] In some embodiments, such as Figure 10 and Figure 15 As shown, another flanged partition 1216 of one mating insert 121 includes another side surface E6 facing the other mating insert 122. One side surface E6 of the flanged partition 1216 of one mating insert 121 includes a notch N6. The notch N6 extends through the flanged partition 1216 of one mating insert 121 along the circumference of the stator core 110. In this way, the notch N6 in the flanged partition 1216 of one mating insert 121 allows for mating with the other mating insert 122 in the radial direction of the stator core 110, preventing the two mating inserts 121-122 of each winding frame 120 from loosening along the circumference of the stator core 110. Furthermore, the assembly process of the two mating inserts 121-122 of each winding frame 120 is simplified.

[0108] In some embodiments, such as Figure 10 and Figure 15 As shown, the notch N6 of one side surface E6 of another flanged partition 1216 of one plug-in unit 121 is connected to the notch N2 of one side surface E2 of another circumferential partition 1212 of one plug-in unit 121 .

[0109] In some embodiments, such as Figure 15As shown, the notch N6 of one side E6 of another flanged partition 1216 of the plug-in 121 includes a notch N6 facing one side N of another flanged partition 1215. 61 , one side of the gap N6 61 The protrusion P5 is arranged along one end of the radial notch N6 of the stator core 110 and on the side of the other end of the notch N6 away from the central axis of the stator core, and along a side surface N 61 The distance between the protrusion P5 and one end of the notch N6 is less than the distance between the protrusion P5 and one end of the notch N6. 61 Thus, along the radial direction of the stator core 110, a side surface N1 of the notch N6 of another flanged partition 1216 of the plug-in 121 is formed. 61 The protrusion P5 on the winding frame 120 can be engaged with another plug-in 122 to prevent the two plug-ins 121~122 of each winding frame 120 from loosening along the radial direction of the stator core 110, thereby achieving radial interlocking of the two plug-ins 121~122 of each winding frame 120 along the stator core 110.

[0110] In some embodiments, such as Figure 15 As shown, one side N of the notch N6 61 The protrusion P5 includes two end surfaces P arranged opposite to each other in the radial direction of the stator core 110. 51 ~P 52 At least one of the two end faces is aligned with a side surface N of the notch N6. 61 The angle between them is an obtuse angle.

[0111] like Figure 15 As shown, the protrusion P5 in the notch N6 is close to an end surface P of another plug-in 122. 51 One side with notch N6 61 The included angle θ7 is an obtuse angle, that is, the protrusion P5 in the notch N6 is close to an end surface P of another plug-in 122. 51 The chamfer is provided so that the other plug-in unit 122 can be quickly inserted into the notch N6 of one plug-in unit 121 to achieve snap connection with the plug-in unit 121 , thereby improving the assembly efficiency of the two plug-in units 121 - 122 .

[0112] like Figure 15 As shown, the protrusion P5 in the notch N6 is away from the other end surface P of the other plug-in 122. 52 One side with notch N6 61 The included angle θ8 is an obtuse angle, that is, the protrusion P5 in the notch N6 is away from the other end surface P of the other plug-in 122. 52The chamfer is provided so that the other plug-in unit 122 can be quickly inserted into the notch N6 of one plug-in unit 121 to achieve snap connection with the plug-in unit 121 , thereby improving the assembly efficiency of the two plug-in units 121 - 122 .

[0113] The following combination Figures 16 to 18 The structure of another sub-pair of plug-ins 1222 provided in the embodiment of the present application is as follows:

[0114] like Figure 16 and Figure 17 As shown, the other sub-pair insert 1222 includes a circumferential partition 12221 and a radial partition 12222. The circumferential partition 12221 is used to securely connect the radial partition 12222. The circumferential partition 12221 of the other sub-pair insert 1222 is arranged on the side of one protrusion P1 facing the other protrusion P1. The circumferential partition 12221 of the other sub-pair insert 1222 is used to wrap the remaining portion of the other circumferential outer surface S2 of one protrusion P1. Along the axial direction of the stator core 110, the size of the circumferential partition 12221 of the other sub-pair insert 1222 is equal to the size of the other circumferential outer surface S2 of one protrusion P1. The radial partition 12222 of the other sub-pair plug-in 1222 is arranged on the side of a protrusion P1 away from the central axis of the stator core 110, and the radial partition 12222 of the other sub-pair plug-in 1222 is used to wrap a part of the other radial outer peripheral surface S4 of a protrusion P1, and the size of the radial partition 12222 of the other sub-pair plug-in 1222 along the axial direction of the stator core 110 is equal to the size of the other radial outer peripheral surface S4 of a protrusion P1.

[0115] In this way, along the radial direction of the stator core 110 toward the central axis of the stator core 110, another sub-pair plug-in 1222 is pushed into a winding slot from the side of the outer peripheral surface 112 of the stator core 110, so that the circumferential partition 12221 of the other sub-pair plug-in 1222 wraps the remaining part of the other circumferential outer peripheral surface S2 of a protrusion P1, and the radial partition 12222 wraps the part of the other radial outer peripheral surface S4 of a protrusion P1, thereby completing the installation of the other sub-pair plug-in 1222.

[0116] In some embodiments, such as Figure 16As shown, the circumferential partition 12221 of the other sub-pair insert 1222 includes a side surface E5 facing the first pair insert 121. One side surface E5 of the circumferential partition 12221 of the other sub-pair insert 1222 includes a notch N5. The notch N5 extends through the circumferential partition 12221 of the other sub-pair insert 1222 along the axial direction of the stator core 110. In this way, the notch N5 in the circumferential partition 12221 of the other sub-pair insert 1222 radially along the stator core 110 allows for mating with the first pair insert 121, preventing the other sub-pair insert 1222 and the first pair insert 121 of each winding frame 120 from loosening along the circumferential direction of the stator core 110. Furthermore, the assembly process of the other sub-pair insert 1222 and the first pair insert 121 of each winding frame 120 is simplified.

[0117] In some embodiments, such as Figure 16 and Figure 17 As shown, the radial partition 12222 of the other sub-pair insert 1222 includes a side surface facing away from one protrusion P1. One side surface of the radial partition 12222 of the other sub-pair insert 1222 includes a plurality of grooves G2. The grooves G2 are spaced apart along the axial direction of the stator core 110. Each groove G2 is used to accommodate a winding coil. The size of each groove G2 along the circumference of the stator core 110 is equal to the size of the radial partition 12222 of the other sub-pair insert 1222. In this way, the winding coil can be accommodated in the grooves G2, saving internal space of the stator core 110.

[0118] In some implementations, each groove G2 on one side of the radial partition 12222 of the other sub-pair insert 1222 includes a groove bottom and a groove opening arranged radially along the stator core 110. The groove bottom of each groove G2 is projected along the axial direction of the stator core 110 as a curve, with the curve curving in the radial direction of the stator core 110 away from the central axis of the stator core. In this way, the winding coil wound in each groove G2 on one side of the radial partition 12222 of the other sub-pair insert 1222 can closely adhere to the groove bottom of the groove G2, thereby achieving a secure connection of the winding coil.

[0119] In some embodiments, the connection between the groove G2 on one side of the radial partition 12222 of another sub-pair plug-in 1222 and the circumferential partition 12221 of another sub-pair plug-in 1222 has a chamfer, which can reduce damage to the winding coil and improve the slot fill rate.

[0120] In some embodiments, such as Figure 16As shown, the radial partition 12222 of the other sub-pair insert 1222 includes a side surface E6 facing the first sub-pair insert 1221. The side surface E6 of the radial partition 12222 of the other sub-pair insert 1222 includes a notch N6. The notch N6 extends axially along the stator core 110 through the radial partition 12222 of the other sub-pair insert 1222. In this way, the notch N6 on the radial partition 12222 of the other sub-pair insert 1222 enables mating with the first sub-pair insert 1221 along the circumference of the stator core 110, preventing the other sub-pair insert 1222 and the first sub-pair insert 1221 of each winding frame 120 from loosening in the radial direction of the stator core 110. Furthermore, the assembly process of the other sub-pair insert 1222 and the first sub-pair insert 1221 of each winding frame 120 is simplified.

[0121] In some embodiments, such as Figures 16 to 18 As shown, the other sub-pair plug-in 1222 further includes a flanged partition 12223, and the flanged partition 12223 of the other sub-pair plug-in 1222 and the circumferential partition 12221 of the other sub-pair plug-in 1222 are facing the end P of a protrusion P1. 11 One end of the other sub-pair plug-in 1222 is fixedly connected, and a flanged partition 12223 of the other sub-pair plug-in 1222 is arranged on the side of the circumferential partition 12221 of the other sub-pair plug-in 1222 away from a protrusion P1. A flanged partition 12223 of the other sub-pair plug-in 1222 is used to wrap the end P of a protrusion P1. 11 In this way, a flanged partition 12223 of another sub-plug 1222 can abut against an end P of a protrusion P1 along the axial direction of the stator core 110. 11 In this way, the other sub-pair plug-in 1222 can be prevented from moving along the axial direction of the stator core 110.

[0122] In some embodiments, such as Figure 16 As shown, a flanged partition 12223 of the other sub-pair insert 1222 includes a side surface E7 facing the first pair insert 121. The side surface E7 of the flanged partition 12223 of the other sub-pair insert 1222 includes a notch N7. The notch N7 extends through the flanged partition 12223 of the other sub-pair insert 1222 along the circumference of the stator core 110. This allows the notch N7 on the flanged partition 12223 of the other sub-pair insert 1222 to be mated with the first pair insert 121 in the radial direction of the stator core 110, preventing the other sub-pair insert 1222 and the first pair insert 121 of each winding frame 120 from loosening in the radial direction of the stator core 110. Furthermore, the assembly process of the other sub-pair insert 1222 and the first pair insert 121 of each winding frame 120 is simplified.

[0123] In some embodiments, such as Figure 16 As shown, the notch N7 of a side surface E7 of a flanged partition 12223 of another sub-pair of plug-ins 1222 is connected to the notch N5 of a side surface E5 of the circumferential partition 12221 of another sub-pair of plug-ins 1222.

[0124] In some embodiments, such as Figure 16 As shown, the notch N7 of one side E7 of a flanged partition 12223 of another sub-pair plug-in 1222 includes a side N 71 , one side of the notch N7 71 The protrusion P6 is arranged along one end of the radial notch N7 of the stator core 110 and on the side of the other end of the notch N7 facing the central axis of the stator core, and along a side surface N of the radial notch N7 of the stator core 110. 71 The distance between the protrusion P6 and one end of the notch N7 is less than the distance between the protrusion P6 and one end of the notch N7. 71 Thus, along the radial direction of the stator core 110, one side N of the notch N7 of a flanged partition 12223 of another sub-pair plug-in 1222 is 71 The protrusion P6 on it can be engaged with a pair of plug-ins 121 to prevent the other sub-pair of plug-ins 1222 of each winding frame 120 and a pair of plug-ins 121 from loosening along the radial direction of the stator core 110, thereby realizing the radial interlocking of the other sub-pair of plug-ins 1222 of each winding frame 120 and a pair of plug-ins 121 along the stator core 110.

[0125] In some embodiments, such as Figure 16 As shown, one side N of the notch N7 71 The protrusion P6 includes two end surfaces P arranged opposite to each other in the radial direction of the stator core 110. 61 ~P 62 At least one of the two end faces is aligned with a side surface N of the notch N7. 71 The angle between them is an obtuse angle.

[0126] like Figure 16 As shown, the protrusion P6 in the notch N7 is close to an end surface P of the plug-in 121. 61 One side with notch N7 71 The included angle φ1 is an obtuse angle, that is, the protrusion P6 in the notch N7 is close to an end surface P of the plug 121. 61 A chamfer is provided so that one plug-in 121 can be quickly inserted into the notch N7 of another sub-plug-in 1222 and snap-fitted with the other sub-plug-in 1222 , thereby improving the assembly efficiency of the other sub-plug-in 1222 and one plug-in 121 .

[0127] like Figure 16 As shown, the protrusion P6 in the notch N7 is away from the other end surface P of the plug-in 121. 62 One side with notch N7 71 The included angle φ2 is an obtuse angle, that is, the protrusion P6 in the notch N7 is away from the other end surface P of the plug 121. 62 A chamfer is provided so that one plug-in 121 can be quickly inserted into the notch N7 of another sub-plug-in 1222 and snap-fitted with the other sub-plug-in 1222 , thereby improving the assembly efficiency of the other sub-plug-in 1222 and one plug-in 121 .

[0128] In some embodiments, such as Figures 16 to 18 As shown, the other sub-pair plug-in 1222 further includes another flanged partition 12224, and the other flanged partition 12224 of the other sub-pair plug-in 1222 and the radial partition 12222 of the other sub-pair plug-in 1222 are connected to the end P of a protrusion P1. 11 One end of the sub-pair plug-in 1222 is fixedly connected, and another flanged partition 12224 of the other sub-pair plug-in 1222 is arranged on a side of the radial partition 12222 of the other sub-pair plug-in 1222 away from a protrusion P1.

[0129] In some embodiments, such as Figure 16 As shown, the other flanged partition 12224 of the other sub-pair insert 1222 includes a side surface E8 facing the first sub-pair insert 1221. One side surface E8 of the other flanged partition 12224 of the other sub-pair insert 1222 includes a notch N8. The notch N8 extends radially along the stator core 110 through the other flanged partition 12224 of the other sub-pair insert 1222. This allows the notch N8 on the other flanged partition 12224 of the other sub-pair insert 1222 to be mated with the first sub-pair insert 1221 along the circumference of the stator core 110, preventing the other sub-pair insert 1222 and the first sub-pair insert 1221 of each winding frame 120 from loosening axially along the stator core 110. Furthermore, the assembly process of the other sub-pair insert 1222 and the first sub-pair insert 1221 of each winding frame 120 is simplified.

[0130] In some embodiments, such as Figure 16 As shown, the notch N8 on one side E8 of another flanged partition 12224 of another sub-pair of plug-ins 1222 is connected to the notch N6 on one side E6 of the radial partition 12222 of another sub-pair of plug-ins 1222.

[0131] In some embodiments, such as Figures 16 to 18As shown, the other sub-pair insert 1222 also includes another flanged partition 12225. This flanged partition 12225 is arranged axially along the stator core 110 on the side of the radial partition 12222 of the other sub-pair insert 1222 facing away from the rotor. This flanged partition 12225 is used to securely connect the circumferential partition 12221 and radial partition 12222 of the other sub-pair insert 1222. The flanged partition 12225 of the other sub-pair insert 1222 includes a through hole T2 extending axially along the stator core 110. This through hole T2 communicates with a side surface W1 of the flanged partition 12225 of the other sub-pair insert 1222, which faces away from the protrusion P1. This through hole T2 is used to accommodate one or more winding coils. In this way, the through hole T2 of another flanged partition 12225 of another sub-pair plug-in 1222 can fix the winding coil of the stator winding to prevent the stator winding from moving.

[0132] In some embodiments, such as Figure 18 As shown, another flanged partition 12225 of the other sub-pair insert 1222 includes a side surface E9 facing the first pair insert 121. One side surface E9 of the flanged partition 12225 of the other sub-pair insert 1222 includes a notch N9. The notch N9 extends through the flanged partition 12225 of the other sub-pair insert 1222 along the circumference of the stator core 110. In this way, the notch N9 in the flanged partition 12225 of the other sub-pair insert 1222 radially along the stator core 110 allows for mating with the first pair insert 121, preventing the other sub-pair insert 1222 and the first pair insert 121 of each winding frame 120 from loosening along the axial direction of the stator core 110. Furthermore, the assembly process of the other sub-pair insert 1222 and the first pair insert 121 of each winding frame 120 is simplified.

[0133] In some embodiments, the notch N9 on one side E9 of another flanged partition 12225 of another sub-pair of plug-ins 1222 is connected to the notch N5 on one side E5 of the circumferential partition 12221 of another sub-pair of plug-ins 1222.

[0134] In some embodiments, such as Figure 18 As shown, the notch N9 of one side E9 of another flanged partition 12225 of another sub-pair plug-in 1222 includes a side N facing away from the radial partition 12221. 91 , one side of the notch N9 91The protrusion P7 is arranged along one end of the radial notch N9 of the stator core 110 and on the side of the other end of the notch N9 facing the central axis of the stator core, and along a side surface N of the radial notch N9 of the stator core 110. 91 The distance between the protrusion P7 and one end of the notch N9 is less than the distance between the protrusion P7 and one end of the notch N9. 91 Thus, along the radial direction of the stator core 110, one side N of the notch N9 of another flanged partition 12225 of another sub-pair plug-in 1222 is 91 The protrusion P7 on it can be engaged with a pair of plug-ins 121 to prevent the other sub-pair of plug-ins 1222 of each winding frame 120 and a pair of plug-ins 121 from loosening along the radial direction of the stator core 110, thereby realizing the radial interlocking of the other sub-pair of plug-ins 1222 of each winding frame 120 and a pair of plug-ins 121 along the stator core 110.

[0135] In some embodiments, such as Figure 18 As shown, one side of the notch N9 91 The protrusion P7 includes two end surfaces P arranged opposite to each other in the radial direction of the stator core 110. 71 ~P 72 At least one of the two end faces is aligned with a side surface N of the notch N9. 91 The angle between them is an obtuse angle.

[0136] like Figure 18 As shown, the protrusion P7 in the notch N9 is close to an end surface P of the plug-in 121. 71 N9 with a notch on one side 91 The included angle φ3 is an obtuse angle, that is, the protrusion P7 in the notch N9 is close to an end surface P of the plug 121. 71 A chamfer is provided so that one plug-in 121 can be quickly inserted into the notch N9 of another sub-plug-in 1222 and snap-fitted with the other sub-plug-in 1222 , thereby improving the assembly efficiency of the other sub-plug-in 1222 and one plug-in 121 .

[0137] like Figure 18 As shown, the protrusion P7 in the notch N9 is away from the other end surface P of the plug-in 121. 72 N9 with a notch on one side 91 The included angle φ4 is an obtuse angle, that is, the protrusion P7 in the notch N9 is away from the other end surface P of the plug 121. 72 A chamfer is provided so that one plug-in 121 can be quickly inserted into the notch N9 of another sub-plug-in 1222 and snap-fitted with the other sub-plug-in 1222 , thereby improving the assembly efficiency of the other sub-plug-in 1222 and one plug-in 121 .

[0138] In some embodiments, such as Figure 16 As shown, another flanged partition 12225 of another sub-pair plug-in 1222 includes another side E facing toward one sub-pair plug-in 1221. 10 , another side E of another flanged partition 12225 of the plug-in 1222 10 Including gap N 10 , along the radial gap N of the stator core 110 10 Through another flanged partition 12225 of another sub-pair plug-in 1222. In this way, along the radial direction of the stator core 110, the notch N on another flanged partition 12225 of another sub-pair plug-in 1222 is 10 The sub-pair insert 1221 can be inserted into each other to prevent the sub-pair insert 1221 and the other sub-pair insert 1222 of each winding frame 120 from loosening along the axial direction of the stator core 110. In addition, the assembly process of the sub-pair insert 1221 and the other sub-pair insert 1222 of each winding frame 120 is simplified.

[0139] In some embodiments, such as Figure 16 As shown, a side E of another flanged partition 12225 of another sub-pair plug-in 1222 10 N 10 It is connected to the notch N6 of one side E6 of the circumferential partition 12222 of another sub-pair plug-in 1222.

[0140] The following combination Figures 19 to 21 The structure of a sub-pair plug-in 1221 of another pair plug-in 122 provided in an embodiment of the present application is described in detail.

[0141] like Figure 19 and Figure 21As shown, a sub-pair insert 1221 includes a circumferential partition 12211 and a radial partition 12212. The circumferential partition 12211 is used to fix the radial partition 12212. The circumferential partition 12211 of a sub-pair insert 1221 is arranged on the side of a protrusion P1 facing another protrusion P1. The circumferential partition 12211 of a sub-pair insert 1221 is used to wrap the remaining portion of a circumferential outer surface S1 of a protrusion P1. Along the axial direction of the stator core 110, the size of the circumferential partition 12211 of a sub-pair insert 1221 is equal to the size of the other circumferential outer surface S2 of a protrusion P1. The radial partition 12212 of a sub-pair plug-in 1221 is arranged on the side of a protrusion P1 away from the central axis of the stator core 110, and the radial partition 12212 of a sub-pair plug-in 1221 is used to wrap the remaining part of the other radial outer peripheral surface S4 of a protrusion P1, and the size of the radial partition 12212 of a sub-pair plug-in 1221 along the axial direction of the stator core 110 is equal to the size of the other radial outer peripheral surface S4 of a protrusion P1.

[0142] In this way, along the radial direction of the stator core 110 toward the central axis of the stator core 110, a sub-pair plug-in 1221 is pushed into a winding slot from the side of the outer peripheral surface 112 of the stator core 110, so that the circumferential partition 12211 of a sub-pair plug-in 1221 wraps the remaining part of a circumferential outer peripheral surface S1 of a protrusion P1, and the radial partition 12212 wraps the remaining part of another radial outer peripheral surface S4 of a protrusion P1, thereby completing the installation of a sub-pair plug-in 1221.

[0143] In some embodiments, such as Figure 19 As shown, the circumferential partition 12211 of a sub-plug-in 1221 includes a side E facing a plug-in 121. 11 , a side surface E of the circumferential partition 12211 of a sub-plug 1221 11 Including gap N 11 , the axial notch N5 along the stator core 110 penetrates the circumferential partition 12211 of a sub-pair plug-in 1221. In this way, the notch N5 on the circumferential partition 12211 of a sub-pair plug-in 1221 along the radial direction of the stator core 110 11 It can be plugged into a plug-in 121 to prevent the sub-plug-in 1221 of each winding frame 120 from loosening along the circumference of the stator core 110. In addition, the assembly process of the sub-plug-in 1221 of each winding frame 120 and the plug-in 121 is simplified.

[0144] In some embodiments, such as Figure 20As shown, the radial partition 12212 of a sub-pair insert 1221 includes a side surface facing away from a protrusion P1. One side surface of the radial partition 12212 of the sub-pair insert 1221 includes a plurality of grooves G3. The grooves G3 are spaced apart along the axial direction of the stator core 110. Each groove G3 is used to accommodate a winding coil. The size of each groove G3 along the circumference of the stator core 110 is equal to the size of the radial partition 12212 of the sub-pair insert 1221. In this way, the winding coil can be accommodated in the grooves G3, saving space outside the stator core 110.

[0145] In some embodiments, each groove G3 on one side of the radial partition 12212 of a sub-pair insert 1221 includes a groove bottom and a groove opening arranged radially along the stator core 110. The groove bottom of each groove G3 is projected along the axial direction of the stator core 110 as a curve, with the curve curving in the radial direction of the stator core 110 away from the central axis of the stator core. In this way, the winding coil wound in each groove G3 on one side of the radial partition 12212 of a sub-pair insert 1221 can cling to the groove bottom of the groove G3, thereby securing the winding coil.

[0146] In some embodiments, the connection between the groove G3 on one side of the radial partition 122122 of a sub-pair plug-in 1221 and the circumferential partition 12211 of a sub-pair plug-in 1221 has a chamfer, which can reduce damage to the winding coil and improve the slot fill rate.

[0147] In some embodiments, along the circumference of the stator core 110, a groove G3 on one side of the radial partition 12212 of one sub-pair insert 1221 communicates with each groove G2 on one side of the radial partition 12222 of another sub-pair insert 1222. In some embodiments, the curvature of the groove bottom of each groove G3 is the same as the curvature of the groove bottom of one groove G2 at the junction.

[0148] In some embodiments, such as Figure 20 As shown, the radial partition 12212 of one sub-pair plug-in 1221 includes a side E facing the other sub-pair plug-in 1222. 12 , a side E of the radial partition 12212 of a sub-plug 1221 12 Including gap N 12 , along the axial gap N of the stator core 110 12 The radial partition 12212 of a sub-pair plug-in 1221 is penetrated. In this way, the notch N on the radial partition 12212 of a sub-pair plug-in 1221 along the circumference of the stator core 110 is 12The sub-pair insert 1221 of each winding frame 120 can be plugged into another sub-pair insert 1222 to prevent the sub-pair insert 1221 and the other sub-pair insert 1222 from loosening along the radial direction of the stator core 110. In addition, the assembly process of the sub-pair insert 1221 and the other sub-pair insert 1222 of each winding frame 120 is simplified.

[0149] In some embodiments, such as Figure 19 and Figure 20 As shown, a sub-pair plug-in 1221 further includes a flanged partition 12213, and a flanged partition 12213 of a sub-pair plug-in 1221 and a circumferential partition 12211 of a sub-pair plug-in 1221 face an end P of a protrusion P1. 11 One end of the sub-pair plug-in 1221 is fixedly connected, and a flanged partition 12213 of a sub-pair plug-in 1221 is arranged on the side of the circumferential partition 12211 of a sub-pair plug-in 1221 away from a protrusion P1. A flanged partition 12213 of a sub-pair plug-in 1221 is used to wrap the end P of a protrusion P1. 11 In this way, a flanged partition 12213 of a sub-pair plug-in 1221 can abut against an end P of a protrusion P1 along the axial direction of the stator core 110. 11 In this way, a sub-pair plug-in 1221 can be prevented from moving along the axial direction of the stator core 110.

[0150] In some embodiments, such as Figure 19 As shown, a flanged partition 12213 of a sub-pair plug-in 1221 includes a side E facing a pair of plug-ins 121. 13 , a side E of a flanged partition 12213 of a sub-plug 1221 13 Including gap N 13 , along the circumferential gap N of the stator core 110 13 Penetrate a flanged partition 12213 of a sub-pair plug-in 1221. In this way, along the radial direction of the stator core 110, the notch N on a flanged partition 12213 of a sub-pair plug-in 1221 is 13 It can be plugged into a plug-in 121 to prevent the sub-plug-in 1221 of each winding frame 120 from loosening in the radial direction of the stator core 110. In addition, the assembly process of the sub-plug-in 1221 of each winding frame 120 and the plug-in 121 is simplified.

[0151] In some embodiments, such as Figure 19 As shown, a side E of a flanged partition 12213 of a sub-plug 1221 13 N 13A side E of the circumferential partition 12211 of a sub-plug 1221 11 N 11 Connectivity.

[0152] In some embodiments, such as Figure 19 As shown, a side E of a flanged partition 12213 of a sub-plug 1221 13 N 13 Including one side N facing the rotor 131 , gap N 13 A side of N 131 Including protrusion P 10 , along the radial gap N of the stator core 110 13 One end is arranged at the gap N 13 The other end of the stator core is toward the side of the central axis of the stator core, along the radial notch N of the stator core 110 13 A side of N 131 The convex P 10 With Notch N 13 The distance between one end and the gap N is less than 13 A side of N 71 The convex P 10 With Notch N 13 Thus, along the radial direction of the stator core 110, a gap N of a flanged partition 12213 of a sub-pair plug-in 1221 is formed. 13 A side of N 131 The raised P 10 It can be engaged with a pair of plug-ins 121 to prevent a sub-pair of plug-ins 1221 of each winding frame 120 and a pair of plug-ins 121 from loosening along the radial direction of the stator core 110, thereby achieving radial interlocking of a sub-pair of plug-ins 1221 of each winding frame 120 and a pair of plug-ins 121 along the stator core 110.

[0153] In some embodiments, such as Figure 16 As shown, one side N of the notch N7 131 The convex P 10 The stator core 110 includes two end surfaces P arranged opposite to each other in the radial direction. 101 ~P 102 , at least one of the two end faces is adjacent to the notch N 13 A side of N 131 The angle between them is an obtuse angle.

[0154] like Figure 16 As shown, the gap N 13 The bulge P in 10 Close to an end surface P of a plug-in 121 101 With Notch N 13A side of N 131 The angle φ5 is an obtuse angle, that is, the gap N 13 The bulge P in 10 An end surface P close to a plug-in 121 101 A chamfer is provided so that a pair of plugs 121 can be quickly inserted into the notch N of a sub-pair of plugs 1221. 13 The sub-pair plug-in 1221 is snap-fitted to improve the assembly efficiency of the sub-pair plug-in 1221 and the pair plug-in 121.

[0155] like Figure 16 As shown, the gap N 13 The bulge P in 10 The other end surface P away from the plug-in 121 102 With Notch N 13 A side of N 131 The included angle φ6 is an obtuse angle, that is, the gap N 13 The bulge P in 10 The other end surface P of the other plug-in 122 is away from the other end surface P 102 A chamfer is provided so that a pair of plugs 121 can be quickly inserted into the notch N of a sub-pair of plugs 1221. 13 The sub-pair plug-in 1221 is snap-fitted to improve the assembly efficiency of the sub-pair plug-in 1221 and the pair plug-in 121.

[0156] In some embodiments, such as Figure 19 and Figure 20 As shown, one sub-pair plug-in 1221 further includes another flanged partition 12214, and the other flanged partition 12214 of one sub-pair plug-in 1221 and the radial partition 12212 of one sub-pair plug-in 1221 face toward the end P of a protrusion P1. 11 One end of the sub-pair plug-in 1221 is fixedly connected, and the other flanged partition 12214 of a sub-pair plug-in 1221 is arranged on the side of the radial partition 12212 of a sub-pair plug-in 1221 away from a protrusion P1.

[0157] In some embodiments, such as Figure 20 As shown, another flanged partition 12214 of one sub-pair plug-in 1221 includes a side E facing another sub-pair plug-in 1222. 14 , a side E of another flanged partition 12214 of a sub-plug 1221 14 Including gap N 14 , along the radial gap N of the stator core 110 14 The other flanged partition 12214 of the sub-pair plug-in 1221 is penetrated. In this way, the notch N on the other flanged partition 12214 of the sub-pair plug-in 1221 along the circumference of the stator core 110 is14 The sub-pair insert 1221 of each winding frame 120 can be plugged into another sub-pair insert 1222 to prevent the sub-pair insert 1221 and the other sub-pair insert 1222 from loosening along the axial direction of the stator core 110. In addition, the assembly process of the sub-pair insert 1221 and the other sub-pair insert 1222 of each winding frame 120 is simplified.

[0158] In some embodiments, such as Figure 20 As shown, one side E of another flanged partition 12214 of a sub-plug 1221 14 N 14 A side E of the radial partition 12212 of a sub-plug 1221 12 N 12 Connectivity.

[0159] In some embodiments, such as Figures 19 to 18 As shown, one sub-pair insert 1221 further includes a flanged partition 12215. This flanged partition 12215 is arranged axially along the stator core 110 on the side of the radial partition 12212 of the sub-pair insert 1221 facing away from the rotor. This flanged partition 12215 is used to securely connect the circumferential partition 12211 and radial partition 12212 of the sub-pair insert 1221. The flanged partition 12215 of the sub-pair insert 1221 includes a through hole T3 extending axially along the stator core 110. This through hole T3 communicates with a side surface W2 of the flanged partition 12215 of the sub-pair insert 1221, which faces away from the protrusion P1. This through hole T3 is used to accommodate one or more winding coils. In this way, the through hole T3 of another flanged partition 12215 of a sub-pair plug-in 1221 can fix the winding coil of the stator winding to prevent the stator winding from moving.

[0160] In some embodiments, such as Figure 19 and Figure 21 As shown, another flanged partition 12215 of a sub-pair plug-in 1221 includes a side E facing a pair of plug-ins 121. 15 , a side E of another flanged partition 12215 of a sub-plug 1221 15 Including gap N 15 , along the circumferential gap N of the stator core 110 15 In this way, the notch N on the flanged partition 12215 of the sub-pair plug-in 1221 along the radial direction of the stator core 110 is formed. 15It can be plugged into a plug-in 121 to prevent the sub-plug-in 1221 of each winding frame 120 from loosening along the axial direction of the stator core 110. In addition, the assembly process of the sub-plug-in 1221 of each winding frame 120 and the plug-in 121 is simplified.

[0161] In some embodiments, such as Figure 19 As shown, a side E of another flanged partition 12215 of a sub-plug 1221 15 N 15 A side E of the circumferential partition 12211 of a sub-plug 1221 11 N 11 Connectivity.

[0162] In some embodiments, such as Figure 21 As shown, a side E of another flanged partition 12215 of a sub-plug 1221 15 N 15 Including a side N away from the circumferential partition 12211 151 , gap N 15 A side of N 151 Including protrusion P 13 , along the radial gap N of the stator core 110 15 One end is arranged at the gap N 15 The other end of the stator core is toward the side of the central axis of the stator core, along the radial notch N of the stator core 110 15 A side of N 151 The convex P 13 With Notch N 15 The distance between one end and the gap N is less than 15 A side of N 151 The convex P 13 With Notch N 15 Thus, along the radial direction of the stator core 110, the gap N of the flanged partition 12215 of the sub-plug 1221 is 15 A side of N 151 The raised P 13 It can be engaged with a pair of plug-ins 121 to prevent a sub-pair of plug-ins 1221 of each winding frame 120 and a pair of plug-ins 121 from loosening along the radial direction of the stator core 110, thereby achieving radial interlocking of a sub-pair of plug-ins 1221 of each winding frame 120 and a pair of plug-ins 121 along the stator core 110.

[0163] In some embodiments, such as Figure 21 As shown, the gap N 15 A side of N 151 The convex P 13The stator core 110 includes two end surfaces P arranged opposite to each other in the radial direction. 131 ~P 132 , at least one of the two end faces is adjacent to the notch N 15 A side of N 151 The angle between them is an obtuse angle.

[0164] like Figure 21 As shown, the gap N 15 The bulge P in 13 Close to an end surface P of a plug-in 121 131 With Notch N 15 A side of N 151 The angle φ7 is an obtuse angle, that is, the gap N 15 The bulge P in 13 An end surface P close to a plug-in 121 131 A chamfer is provided so that a pair of plugs 121 can be quickly inserted into the notch N of a sub-pair of plugs 1221. 15 The sub-pair plug-in 1221 is snap-fitted to improve the assembly efficiency of the sub-pair plug-in 1221 and the pair plug-in 121.

[0165] like Figure 21 As shown, the gap N 15 The bulge P in 13 The other end surface P away from the plug-in 121 132 With Notch N 15 A side of N 151 The included angle φ8 is an obtuse angle, that is, the gap N 15 The bulge P in 13 The other end surface P of the plug 121 is away from the other end surface P 132 A chamfer is provided so that a pair of plugs 121 can be quickly inserted into the notch N of a sub-pair of plugs 1221. 15 The sub-pair plug-in 1221 is snap-fitted to improve the assembly efficiency of the sub-pair plug-in 1221 and the pair plug-in 121.

[0166] In some embodiments, such as Figures 19 to 21 As shown, another flanged partition 12215 of a sub-pair plug-in 1221 includes another side E facing toward the sub-pair plug-in 1221. 16 , a side E of another flanged partition 12215 of a sub-plug 1221 16 Including gap N 16 , along the radial gap N of the stator core 110 16 In this way, the notch N on the flanged partition 12215 of the sub-pair plug-in 1221 along the radial direction of the stator core 110 is formed.16 It can be plugged into a sub-pair plug-in 1221 to prevent the sub-pair plug-in 1221 of each winding frame 120 from loosening along the axial direction of the stator core 110. In addition, the assembly process of the sub-pair plug-in 1221 of each winding frame 120 is simplified.

[0167] In some embodiments, such as Figure 20 As shown, a side E of another flanged partition 12215 of a sub-plug 1221 16 N 16 A side E of the circumferential partition 12212 of a sub-plug 1221 12 N 12 Connectivity.

[0168] The structure of the assembled plug-in pair 121 and the sub-plug-in pair 1222 will be described in detail below.

[0169] like Figure 22 As shown, along the axial direction of the stator core 110, a side surface N of another flanged partition 1215 of a plug-in unit 121 is formed. 41 A side surface N of a flanged partition 12223 of another sub-plug 1222 71 Along the axial direction of the stator core 110, a side surface N of the other flanged partition 1215 of the plug-in 121 41 A side surface N of a flanged partition 12223 of another sub-plug 1222 71 The distance is greater than or equal to one side N of the other flanged partition 1215 of the plug 121. 41 The size of the protrusion P3, the side N of a flanged partition 12223 of another sub-plug 1222 71 Along the radial direction of the stator core 110, one side N of the other flanged partition 1215 of the plug-in 121 41 The projection of the protrusion P3 is aligned with a side surface N of a flanged partition 12223 of another sub-plug 1222. 71 The projection of protrusion P6 overlaps.

[0170] In addition, along the axial direction of the stator core 110, a side surface N of another flanged partition 1216 of the plug-in unit 121 is formed. 61 A side surface N of another flanged partition 12225 of another sub-plug 1222 91 Along the axial direction of the stator core 110, a side surface N of another flanged partition 1216 of the plug-in 121 61A side surface N of another flanged partition 12225 of another sub-plug 1222 91 The distance is greater than or equal to one side N of another flanged partition 1216 of the plug 121. 61 The size of the protrusion P5, the side N of another flanged partition 12225 of the other sub-plug 1222 91 Along the radial direction of the stator core 110, a side surface N of another flanged partition 1216 of the plug-in 121 is 61 The projection of the protrusion P5 is connected to a side surface N of another flanged partition 12225 of another sub-plug 1222. 91 The projection of protrusion P7 overlaps.

[0171] In this way, one pair of plugs 121 is pushed into two adjacent winding slots from one side of the inner circumference 111 of the stator core 110 along the radial direction of the stator core 110 away from the central axis of the stator core 110, and another pair of plugs 1222 is pushed into one winding slot from one side of the outer circumference 112 of the stator core 110 along the radial direction of the stator core 110 toward the central axis of the stator core 110. 41 The protrusion P3 can be connected with a side surface N of a flanged partition 12223 of another sub-plug 1222 71 The protrusion P6 is engaged, and along the radial direction of the stator core 110, a side surface N of another flanged partition 1216 of the plug 121 is formed. 61 The protrusion P5 can be connected with a side surface N of another flanged partition 12225 of another sub-plug 1222 91 The protrusion P7 is engaged to prevent the other sub-pair plug-in 1222 of each winding frame 120 from loosening with one pair plug-in 121 along the radial direction of the stator core 110, thereby achieving the radial interlocking of the other sub-pair plug-in 1222 of each winding frame 120 with one pair plug-in 121 along the stator core 110.

[0172] It should be noted that, in one example, one side N of another flanged partition 1215 of the plug-in 121 41 The protrusion P3 can also be a groove, so that along the radial direction of the stator core 110, a side surface N of another flanged partition 1215 of the plug-in 121 is formed. 41 The groove of the protrusion P3 can be connected with one side N of a flanged partition 12223 of another sub-plug 1222 71 In another example, a side surface N of a flanged partition 12223 of another sub-plug 1222 is connected to the protrusion P6. 71The protrusion P6 can also be a groove, so that along the radial direction of the stator core 110, one side N of the other flanged partition 1215 of the plug 121 is 41 The protrusion P3 can be connected with a side surface N of a flanged partition 12223 of another sub-plug 1222 71 The protrusion P6 is snapped into the groove.

[0173] In one example, a side surface N of another flanged partition 1216 of the plug-in 121 61 The protrusion P5 can also be a groove, so that along the radial direction of the stator core 110, a side surface N of another flange partition 1216 of the plug 121 is formed. 61 The groove can be connected with another side N of another flanged partition 12225 of the plug-in 1222 91 In another example, a side surface N of another flanged partition 12225 of another sub-pair plug-in 1222 is connected to the protrusion P7. 91 The protrusion P7 can also be a groove, so that along the radial direction of the stator core 110, a side surface N of another flange partition 1216 of the plug 121 is formed. 61 The protrusion P5 can be connected with a side surface N of another flanged partition 12225 of another sub-plug 1222 91 The protrusion of P7 is snapped into the groove.

[0174] The structure of a pair of plug-ins 121 and a sub-pair of plug-ins 1221 after assembly is described in detail below.

[0175] Along the axial direction of the stator core 110, a side surface N of a flanged partition 1214 of a plug-in unit 121 31 A side N of a flanged partition 12213 of a sub-plug 1221 131 Along the axial direction of the stator core 110, a side surface N of a flanged partition 1214 of a plug-in 121 31 A side N of a flanged partition 12213 of a sub-plug 1221 131 The distance is greater than or equal to one side N of a flanged partition 1214 of a plug-in 121. 31 The size of the protrusion P2, the side N of a flanged partition 12213 of a sub-plug 1221 131 The convex P 10 Along the radial direction of the stator core 110, a side surface N of a flanged partition 1214 of a plug-in 121 31 The projection of the protrusion P2 is aligned with a side surface N of a flanged partition 12213 of a sub-plug 1221. 131 The convex P10 The projections overlap.

[0176] In addition, along the axial direction of the stator core 110, a side surface N of another flanged partition 1216 of the plug-in unit 121 is formed. 51 A side N of another flanged partition 12215 of a sub-plug 1221 151 Along the axial direction of the stator core 110, a side surface N of another flanged partition 1216 of the plug-in 121 51 A side N of another flanged partition 12215 of a sub-plug 1221 151 The distance is greater than or equal to one side N of another flanged partition 1216 of the plug 121. 51 The size of the protrusion P4, a side N of another flanged partition 12215 of a sub-plug 1221 151 The convex P 13 Along the radial direction of the stator core 110, a side surface N of another flanged partition 1216 of the plug-in 121 51 The projection of the protrusion P4 is connected to a side surface N of another flanged partition 12215 of a sub-plug 1221. 151 The convex P 13 The projections overlap.

[0177] In this way, a pair of plugs 121 is pushed into two adjacent winding slots from one side of the inner circumference 111 of the stator core 110 along the radial direction of the stator core 110 away from the central axis of the stator core 110, and a pair of plugs 1221 is pushed into the other winding slot of the two adjacent winding slots from one side of the outer circumference 112 of the stator core 110 along the radial direction of the stator core 110 toward the central axis of the stator core 110. 31 The protrusion P2 can be connected to a side surface N of a flanged partition 12213 of a sub-plug 1221 131 The convex P 10 The stator core 110 is clamped to a side surface N of another flanged partition 1216 of a plug-in 121 along the radial direction of the stator core 110. 51 The protrusion P4 can be connected to a side surface N of another flanged partition 12215 of a sub-plug 1221 151 The convex P 13 The clamping prevents a sub-pair plug-in 1221 of each winding frame 120 and a pair plug-in 121 from loosening along the radial direction of the stator core 110, thereby achieving interlocking of a sub-pair plug-in 1221 of each winding frame 120 and a pair plug-in 121 along the radial direction of the stator core 110.

[0178] It should be noted that, in one example, a side surface N of a flanged partition 1214 of a plug-in 121 31 The protrusion P2 can also be a groove, so that along the radial direction of the stator core 110, a side surface N of a flanged partition 1214 of a plug-in 121 is 31 The groove can be connected with a side surface N of a flanged partition 12213 of a sub-plug 1221 131 The convex P 10 In another example, a side surface N of a flanged partition 12213 of a sub-plug 1221 131 The convex P 10 It can also be a groove, so that along the radial direction of the stator core 110, a side surface N of a flanged partition 1214 of a plug-in 121 is 31 The protrusion P2 can be connected to a side surface N of a flanged partition 12213 of a sub-plug 1221 131 groove snaps into place.

[0179] In one example, a side surface N of another flanged partition 1216 of the plug-in 121 51 The protrusion P4 can also be a groove, so that along the radial direction of the stator core 110, a side surface N of another flange partition 1216 of the plug 121 is formed. 51 The groove can be connected with a side surface N of another flanged partition 12215 of a sub-plug 1221 151 The convex P 13 In another example, a side surface N of another flanged partition 12215 of a sub-plug 1221 151 The convex P 13 It can also be a groove, so that along the radial direction of the stator core 110, a side surface N of another flanged partition 1216 of a plug-in 121 is 51 The groove can be connected with a side surface N of another flanged partition 12215 of a sub-plug 1221 151 groove snaps into place.

[0180] The structure of one sub-pair plug-in 1221 and the other sub-pair plug-in 122 after assembly is described in detail below.

[0181] like Figure 23 and Figure 24 As shown, along the axial direction of the stator core 110, the notch N8 of one side surface E8 of another flanged partition 12224 of another sub-pair plug-in 1222 is connected to one side surface E8 of another flanged partition 12214 of another sub-pair plug-in 1221. 14 N 14Thus, along the circumference of the stator core 110, the notch N8 on the other flanged partition 12224 of the other sub-pair plug-in 1222 can have a notch N on the other flanged partition 12214 of the other sub-pair plug-in 1221. 14 One end of each winding frame 120 is butted against each other to prevent the other sub-pair plug-in 1222 of each winding frame 120 from loosening with the one sub-pair plug-in 1221 along the radial direction of the stator core 110. In addition, the assembly process of the other sub-pair plug-in 1222 of each winding frame 120 and the one sub-pair plug-in 1221 is simplified.

[0182] In addition, along the axial direction of the stator core 110, a side surface E of another flanged partition 12225 of another sub-pair plug-in 1222 is formed. 10 N 10 A side E of another flanged partition 12215 of a sub-plug 1221 16 N 16 Thus, along the circumference of the stator core 110, the notch N on another flanged partition 12225 of another sub-pair plug-in 1222 is 10 Another flanged partition 12215 that can be connected to a sub-plug 1221 has a notch N 16 One end of each winding frame 120 is butted against each other to prevent the other sub-pair plug-in 1222 of each winding frame 120 from loosening with the one sub-pair plug-in 1221 along the radial direction of the stator core 110. In addition, the assembly process of the other sub-pair plug-in 1222 of each winding frame 120 and the one sub-pair plug-in 1221 is simplified.

[0183] For example, the winding frame 120 provided in the embodiment of the present application is made of an insulating material. In addition, the winding frame 120 can be obtained by an injection molding process, and the winding frame 120 has elasticity.

[0184] In some embodiments, in order to make the stator structure of the disc motor compact and reduce the space occupied by the stator, the winding frame 120 is almost completely in contact with the outer peripheral surface S covering one protrusion P1.

[0185] For example, in each winding frame 120, a circumferential partition 1211 of a plug-in 121 includes a surface facing a circumferential outer surface S1 of a protrusion P1, and one surface of the circumferential partition 1211 of the plug-in 121 is substantially completely in contact with the circumferential outer surface S1 of the protrusion P1. Another circumferential partition 1212 of a plug-in 121 of each winding frame 120 includes a surface facing another circumferential outer surface S2 of a protrusion P1, and one surface of the other circumferential partition 1212 of the plug-in 121 is substantially completely in contact with the other circumferential outer surface S2 of the protrusion P1. A radial partition 1223 of a plug-in 121 includes a surface facing a radial outer surface S3 of a protrusion P1, and one surface of the radial partition 1223 of the plug-in 121 is substantially completely in contact with the radial outer surface S3 of the protrusion P1.

[0186] For another example, in a sub-sub ...

[0187] For another example, in another pair of inserts 122 of each winding frame 120, the circumferential partition 12221 of the other sub-pair of inserts 1222 includes a surface facing the other circumferential outer surface S2 of a protrusion P1, and one surface of the circumferential partition 12221 of the other sub-pair of inserts 1222 is substantially completely aligned with the other circumferential outer surface S2 of the protrusion P1. The radial partition 12222 of the other sub-pair of inserts 1222 includes a surface facing the other radial outer surface S4 of the protrusion P1, and one surface of the radial partition 12222 of the other sub-pair of inserts 1222 is substantially completely aligned with the other radial outer surface S4 of the protrusion P1.

[0188] It should be noted that Figures 3 to 5 、 Figures 7 to 10 In some embodiments, one pair of plugs 1221 of each winding frame 120 is taken as a whole. Figures 3 to 5 、 Figures 7 to 10 The illustrated pair of inserts 1221 is divided into two sub-pairs of inserts along the circumference of the stator core 110 . Thus, the pair of inserts 1221 of each winding frame 120 also includes two sub-pairs of inserts that are opposite to each other along the circumference of the stator core 110 .

[0189] also, Figures 2 to 24 In the example, the notch on one plug-in 121 faces away from the interior of the plug-in 121, and the notch on the other plug-in 122 faces toward the interior of the other plug-in 122. This should not limit the present application. For example, in some embodiments, the notch on one plug-in 121 can also face toward the interior of the plug-in 121, and the notch on the other plug-in 122 can also face away from the interior of the other plug-in 122.

[0190] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A disc motor, characterized in that: The disc motor includes a stator and a rotor, wherein the stator and the rotor are adjacently arranged along the axial direction of the disc motor, and the stator includes: a stator core, wherein the end surface of the stator core facing the rotor comprises a plurality of protrusions, and the plurality of protrusions are arranged at intervals along the circumference of the disc motor; a plurality of winding frames, each of the winding frames being used to surround and wrap the outer peripheral surface of one of the protrusions; The stator winding includes a plurality of winding coils, each of which is wound around a winding frame.

2. The disc motor according to claim 1, characterized in that: Each of the winding frames includes two plug-in pairs, which are connected to each other along the radial direction of the disc motor.

3. The disc motor according to claim 2, characterized in that: At least one of the two pair inserts of each winding frame includes two sub-pair inserts, and the two sub-pair inserts are connected to each other along the circumference of the disc motor.

4. The disc motor according to any one of claims 1 to 3, characterized in that: The outer peripheral surface of each protrusion includes two circumferential outer peripheral surfaces arranged opposite to each other along the circumference of the disc motor. Each plug-in unit of each winding frame includes a plurality of partitions. One partition of one plug-in unit of each winding frame is used to wrap one circumferential outer peripheral surface of one protrusion. One partition of one plug-in unit includes a side surface facing another plug-in unit, wherein: A side surface of a partition of the plug-in unit includes a notch, and the notch penetrates the partition along the axial direction of the disc motor.

5. The disc motor according to any one of claims 1 to 4, characterized in that: The dimension of the end portion of each protrusion facing the rotor along the circumferential direction of the disc motor is greater than the dimension of the other portion of each protrusion. The end portion of each protrusion includes an axial outer circumferential surface facing away from the rotor. The other partition plate of each counter-insertion of the winding frame is used to wrap an axial outer circumferential surface of the end portion of one protrusion. The other partition plate of one counter-insertion includes a side surface facing the other counter-insertion, wherein: One side surface of the other partition plate of the one counter-insertion plate includes a notch, and the notch penetrates the other partition plate along the circumferential direction of the disk motor.

6. The disc motor according to claim 5, characterized in that: The notch includes a side facing away from or toward the rotor, one side of the notch includes a protrusion, and along the radial direction of the disc motor, one end of the notch is arranged on a side of the other end of the notch facing away from the central axis of the stator core, wherein: In the radial direction of the disc motor, a distance between the protrusion on one side of the notch and one end of the notch is smaller than a distance between the protrusion on one side of the notch and the other end of the notch.

7. The disc motor according to claim 6, characterized in that: The protrusion on one side surface of the notch includes two end surfaces arranged opposite to each other in the radial direction of the disc motor, and an angle between at least one of the two end surfaces and one side surface of the notch is an obtuse angle.

8. The disc motor according to claim 6 or 7, characterized in that: Along the axial direction of the disc motor, one side surface of another partition plate of one pair of inserts of each winding frame is arranged opposite to one side surface of another partition plate of another pair of inserts; The distance between one side surface of the other partition plate of the one pair of plug-ins and one side surface of the other partition plate of the other pair of plug-ins along the axial direction of the disc motor is greater than or equal to the size of the protrusion on one side surface of the other partition plate of the one pair of plug-ins and the size of the protrusion on one side surface of the other partition plate of the other pair of plug-ins, respectively; A projection of the protrusion on one side of the other partition of the one pair of inserts overlaps with a projection of the protrusion on one side of the other partition of the other pair of inserts in a radial direction of the disk motor.

9. The disc motor according to any one of claims 1 to 8, characterized in that: In the radial direction of the disk motor, a further partition of a counter-insertion plate of each winding frame is arranged adjacent to a protrusion, and the further partition includes a side surface facing away from the protrusion, wherein: One side surface of the further partition includes a plurality of grooves, which are arranged at intervals along the axial direction of the disc motor. Each of the grooves is used to accommodate one of the winding coils, and the size of each of the grooves along the circumference of the disc motor is equal to the size of the further partition.

10. The disk motor according to claim 9, characterized in that: Another partition of the plug-in assembly of each winding frame is arranged on the side of the protrusion facing the central axis of the stator core, and each groove includes a groove bottom and a groove opening arranged along the radial direction of the disc motor, wherein: The projection of the bottom of each groove along the axial direction of the disc motor is a straight line or a curve, and the bending direction of the curve is along the radial direction of the disc motor toward the central axis of the stator core.

11. The disk motor according to claim 9, characterized in that Another partition of the plug-in unit of each winding frame is arranged on a side of the protrusion away from the central axis of the stator core, and each groove includes a groove bottom and a groove opening arranged along the radial direction of the disc motor, wherein: The projection of the bottom of each groove along the axial direction of the disc motor is a curve, and the bending direction of the curve is along the radial direction of the disc motor away from the central axis of the stator core.

12. The disk motor according to any one of claims 9 to 11, characterized in that: Along the axial direction of the disc motor, the further partition of the one plug-in unit of each winding frame is arranged on a side of the further partition facing away from the rotor, wherein: The further partition includes a through hole penetrating along the axial direction of the disc motor, the through hole is communicated with a side surface of the further partition, and the side surface of the further partition is away from the one protrusion.

13. The disk motor according to any one of claims 9 to 12, characterized in that: Another partition of a sub-pair of the pair of inserts of each winding frame along the circumference of the motor includes a side surface facing the other sub-pair of inserts, A side surface of the further partition of the one sub-pair plug-in comprises a notch, and the notch penetrates the further partition of the one sub-pair plug-in along the axial direction of the disc motor.

14. A powertrain, characterized in that: The power assembly includes a reducer and a disc motor according to any one of claims 1 to 13, wherein a motor shaft of the disc motor is drivingly connected to an input shaft of the reducer.

15. An electric vehicle, characterized in that: The electric vehicle includes wheels, a transmission mechanism, and the powertrain according to claim 14, wherein the powertrain drives the wheels through the transmission mechanism.

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