Lace-in assembly, support, round wire motor, power assembly and vehicle

Abstract

Embodiments of the present application provide a wire embedding assembly, a support, a round wire motor, a power assembly and a vehicle, and relate to the technical field of round wire motors. The wire embedding assembly is used for embedding wires in a stator of a round wire motor. The stator includes a plurality of tooth portions. The wire embedding assembly includes a plurality of first guide bars. In a wire embedding process, each of the plurality of first guide bars is arranged on one side of a corresponding one of the plurality of tooth portions close to a radial center of the stator. The wire embedding assembly further includes a support. The support includes a support base and a plurality of support portions. In the wire embedding process, the support is arranged on an inner diameter side of the stator and is configured such that each of the plurality of support portions abuts one side of a corresponding first guide bar close to the radial center of the stator and pushes the corresponding first guide bar in a direction from the radial center of the stator to a radial outer side of the stator.

Description

Technical Field

[0001] This application relates to the field of round wire motor technology, and more particularly to a wire embedding assembly, support member, round wire motor, powertrain, and vehicle. Background Technology

[0002] Currently, as the performance requirements for generators and drive motors in electric vehicle power systems become increasingly demanding, the use of high copper fill factor flat wire motors is on the rise. Recently, even inexpensive round wire motors have been able to achieve performance close to that of flat wire motors.

[0003] In the stator winding process of a circular wire motor, to prevent the wire harness from being damaged by contact with the edge of the slot shoulder at the stator slot opening, a narrow guide bar is provided on the side of the teeth forming the slot opening near the radial center of the stator. This narrow guide bar has a deep lip that completely covers the thickness of the slot shoulder in the stator radial direction. Along the circumference of the stator, the deep lip abuts against the side of the slot shoulder near the slot opening, thus protecting the wire harness during stator winding. However, if the copper fill factor of the stator slot is high, the deep lip can easily detach from the slot shoulder of the stator teeth during the final stage of wire harness insertion, causing the front end of the narrow guide bar to bend radially inward towards the stator, easily leading to wire harness damage. Sometimes, for cases where the wire harness at the stator end is long, the narrow guide bar is made even longer. Furthermore, after inserting the wire harness, it is necessary to remove the wire harness loop at the stator end from the front end of the narrow guide bar, thus the front end of the narrow guide bar cannot be fixed, leaving the slender narrow guide bar in a "cantilever" state with only one end fixed.

[0004] In related technologies, by setting an alignment tool on the side of the narrow guide bar near the radial center of the stator, the front end of the narrow guide bar is prevented from bending radially inward towards the stator due to the reaction force of the wire harness inserted into the slot, thereby preventing the deep lip of the narrow guide bar from dislodging from the slot shoulder caused by the aforementioned bending.

[0005] However, after the wire harness enters the inside of the stator, the alignment tool needs to be removed. The excessive copper fill factor in the stator slots on both sides of the narrow conductor can lead to excessive pressure within the slots. As a result, even after removing the alignment tool, the front end of the narrow conductor will still bend radially inward towards the stator, causing the deep lip of the narrow conductor to detach from the slot shoulder, making the wire harness prone to damage. Utility Model Content

[0006] This application provides a winding assembly, a support, a round wire motor, a powertrain, and a vehicle to solve the problem that during the winding process in the stator of a round wire motor, the narrow guide bar is prone to bending, causing the deep lip of the narrow guide bar to disengage from the slot shoulder, thereby damaging the wire harness.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] A first aspect of this application provides a winding assembly for winding the stator in a circular wire motor. The stator includes a plurality of teeth, and the winding assembly includes a plurality of first guide bars. During winding, each of the plurality of first guide bars is disposed on the side of a corresponding tooth of the plurality of teeth near the radial center of the stator. The winding assembly further includes a support member, which includes a support base and a plurality of support portions. The plurality of support portions are spaced apart circumferentially from the support base and extend radially outward from the support base; the plurality of support portions are correspondingly disposed to the plurality of first guide bars. During winding, the support member is disposed inside the stator and configured such that each of the plurality of support portions abuts against the side of the corresponding first guide bar near the radial center of the stator, pushing the corresponding first guide bar in a direction from the radial center of the stator toward the radial outward of the stator.

[0009] The wire-insertion assembly provided in this application includes a support member. During the wire-insertion process into the round wire stator, the support member can push multiple first guide bars in a direction from the radial center of the stator toward the radial outer side of the stator. In this way, even if the thickness of the slot shoulder of the stator tooth is relatively thin, it can prevent damage to the wire harness when inserting the wire harness, and increase the copper fill factor of the round wire motor to the same level as that of the flat wire motor.

[0010] In some embodiments, the support member is a resin material component.

[0011] In some embodiments, the end of the support portion away from the radial center of the support member is recessed toward the radial center of the support member to form an opening that fits against the side of the corresponding first guide bar near the radial center of the stator.

[0012] In some embodiments, the support base has a through hole at its radial center.

[0013] In some embodiments, the winding assembly further includes a plurality of second guides, each of which is disposed on the side of at least two consecutively arranged teeth of the plurality of teeth near the radial center of the stator during the winding process.

[0014] In some embodiments, the second guide bar is alternately arranged with the first guide bar.

[0015] A second aspect of this application provides a support member for stator winding in a circular wire motor. The support member includes a support base and a plurality of support portions. The support base has a through hole at its radial center. The plurality of support portions are spaced apart circumferentially from the support base and extend radially outward from the support base. The ends of the support portions away from the radial center of the support member are recessed toward the radial center of the support member to form openings.

[0016] In some embodiments, the support member is a resin material component.

[0017] A third aspect of this application provides a circular wire motor, the circular wire motor including a rotor and a stator, the stator performing winding according to the winding assembly.

[0018] In some embodiments, the thickness of the stator slot shoulder is less than 0.4 mm, and the copper fill factor of the stator is greater than 49%.

[0019] A fourth aspect of this application provides a powertrain including a reducer and a circular wire motor as described in the third aspect above, the circular wire motor being drivenly connected to the reducer.

[0020] A fifth aspect of this application provides a vehicle including wheels and a powertrain as described in the fourth aspect above, the powertrain being used to drive the wheels.

[0021] The powertrain and vehicle provided in this application include the aforementioned circular wire motor, which is made of the aforementioned winding assembly or support member. Therefore, the circular wire motor, powertrain, and vehicle provided in this application solve the same technical problem and have the same technical effect as the support member of the aforementioned technical solution, and will not be described again here. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the winding assembly and motor stator in related technologies;

[0023] Figure 2 For along Figure 1 A sectional view of the XX line in the middle;

[0024] Figure 3 This is a structural diagram of the motor stator and conductor bar assembly in related technologies;

[0025] Figure 4 This is another structural diagram of the winding assembly and motor stator in related technologies;

[0026] Figure 5 For along Figure 4 A cross-sectional view of the YY line;

[0027] Figure 6This is another structural diagram of the winding assembly and motor stator in related technologies;

[0028] Figure 7 This is a structural diagram of a motor stator and winding assembly provided in an embodiment of this application;

[0029] Figure 8 This is a structural diagram of a wire harness inserted into a slot using a wire embedding assembly, as provided in an embodiment of this application.

[0030] Figure 9 This is a structural diagram of a support member provided in an embodiment of this application;

[0031] Figure 10 This is another structural diagram of a motor stator and winding assembly provided in an embodiment of this application;

[0032] Figure 11 This is yet another structural diagram of a motor stator and winding assembly provided in an embodiment of this application;

[0033] Figure 12 For along Figure 11 A cross-sectional view of the VV line in the middle;

[0034] Figure 13 A flowchart illustrating the embedding of wires in the stator of a circular wire motor, provided as an embodiment of this application;

[0035] Figure 14 This is a structural schematic diagram of a vehicle provided in an embodiment of this application.

[0036] Figure label:

[0037] Wire harness 101; wire stripper 102; guide bar assembly 103; front end 1030; first guide bar 1031; second guide bar 1032; deep lip 1033; groove shoulder 1034; alignment tool 105; teeth 107; insulating paper 108; groove 110;

[0038] 1000 winding assembly; 200 support member; 201 support base; 202 support part; 203 opening; 208 through hole; 500 reducer; 600 round wire motor; 11 motor stator; 10000 vehicle; 2000 wheel; 1001 powertrain; 3000 transmission mechanism. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0040] In the accompanying drawings of the embodiments of this application, solid structures such as parts and components are represented by guide lines; hollow structures such as openings, holes, spaces, and cavities are represented by guide lines with arrows.

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the application will be described in further detail below with reference to the accompanying drawings.

[0042] In related technologies, the winding process of the stator in a round wire motor can be achieved by using components such as guide bars and wire strippers to insert the round wire into the slots. However, if the copper fill factor of the stator slots increases, the reaction force of the round wire pressed into the stator slots will press against the deep lip of the guide bar at the slot opening towards the inner diameter of the stator. Furthermore, if the thickness of the slot shoulder of the stator teeth is reduced, the length of the deep lip of the guide bar will also decrease accordingly, making it easier for the guide bar to detach from the slot shoulder of the stator teeth. In addition, when the stack thickness of the wire harness ring relative to the stator is too short, the short wire harness, due to its insufficient length in the circumferential direction of the stator, will move towards the inner diameter of the stator, thereby pressing against the deep lip of the guide bar at the slot opening. In all three cases mentioned above, when the wire harness ring is removed from the guide bar after the wire harness is inserted, the guide bar is very likely to detach from the slot shoulder of the stator teeth, resulting in damage to the wire harness at the edge of the slot shoulder.

[0043] For example, refer to Figure 1 and Figure 2 The winding assembly 100 includes a wire stripper 102 and a guide bar assembly 103, and the motor stator 11 includes a plurality of slots 110 and a plurality of teeth 107 (see reference). Figure 3 Two adjacent teeth 107 of a plurality of teeth 107 define a groove 110. The guide bar assembly 103 includes at least one of a first guide bar 1031 and a second guide bar 1032. Each guide bar (e.g., the first guide bar 1031 or the second guide bar 1032) is disposed on one side of one or more teeth 107 near the radial center of the motor stator 11. Here, the first guide bar 1031 corresponds to one tooth 107, and the second guide bar 1032 corresponds to a plurality of teeth 107. Along the circumference of the motor stator 11, the width of the second guide bar 1032 is greater than the width of the first guide bar 1031. A wire stripper 102 is disposed on one side of the guide bar assembly 103 near the radial center of the motor stator 11.

[0044] Reference Figure 3 Each guide bar extends radially outward from both ends along the circumference of the motor stator 11 to form two deep lips 1033. Each tooth 107 extends radially outward from both ends along the circumference of the motor stator 11 to form two slot shoulders 1034.

[0045] It should be noted that the inner radial side and the outer radial side of the motor stator 11 can be defined by the inner peripheral wall of the motor stator 11. The inner radial side of the motor stator 11 is the side of the inner peripheral wall of the motor stator 11 that is closer to the center of the motor stator 11, and the outer radial side of the motor stator 11 is the side of the inner peripheral wall of the motor stator 11 that is farther away from the center of the motor stator 11.

[0046] During the process of inserting the wire harness 101 into the slot 110 along the axial direction of the motor stator 11, the guide bar assembly 103 serves to protect the wire harness 101. Specifically, when inserting the wire harness 101 into the slot from the opening of the slot 110, damage to the wire harness 101 due to contact with the edge of the slot shoulder 1034 should be prevented. Therefore, the guide bar covers the slot shoulder 1034 along the entire axial direction of the motor stator 11, and the deep lip 1033 of the guide bar completely covers the thickness of the slot shoulder 1034, thereby protecting the wire harness 101 when it is inserted.

[0047] Additionally, for longer wire harness loops, the length of the guide bar assembly 103 needs to be increased accordingly to protect the longer wire harness loops. The front end 1030 of the guide bar assembly 103 is located in the forward direction of the wire stripper 102 along the axial direction of the motor stator 11 (i.e., axially upward). However, after the wire harness 101 is inserted, the wire harness loop needs to be removed from the front end 1030 of the guide bar assembly 103. Therefore, the slender front end 1030 of the guide bar assembly 103 cannot be fixed and is in a cantilevered state. In this way, the front end 1030 of the guide bar assembly 103 is prone to bending radially inward toward the motor stator 11 due to the reaction force of the wire harness 101 inserted into the slot, causing the deep lip 1033 of the guide bar assembly 103 to disengage from the slot shoulder 1034, thereby damaging the wire harness 101.

[0048] To address the aforementioned issues, an alignment tool 105 has been provided in the related art.

[0049] Reference Figure 4 and Figure 5 The wire-insertion assembly 100 also includes an alignment tool 105. Along the axial direction of the motor stator 11, the alignment tool 105 is located on the side of the wire stripper 102 near the front end 1030 of the guide bar assembly 103 (i.e., axially above). Along the radial direction of the motor stator 11, the alignment tool 105 is located on the side of the front end 1030 of the guide bar assembly 103 near the radial center of the motor stator 11. This prevents the deep lip 1033 of the guide bar assembly 103 from disengaging from the slot shoulder 1034.

[0050] However, after inserting the wire harness 101, the front end 1030 of the guide bar assembly 103 cannot be secured in place because the wire harness loop must be removed from the front end 1030 of the guide bar assembly 103. Once the wire harness 101 is inserted inside the motor stator 11, the alignment tool 105 must be removed from the front end 1030 of the guide bar assembly 103. (Refer to...) Figure 3 and Figure 6 If the alignment tool 105 is removed when the reaction force of the wire harness 101 is large, the front end 1030 of the guide bar assembly 103 is long and cantilevered. Therefore, the front end 1030 of the guide bar assembly 103 will still bend radially inward towards the stator, causing the deep lip 1033 of the guide bar assembly 103 to disengage from the slot shoulder 1034, which in turn leads to damage to the wire harness 101.

[0051] Reference Figure 3 When the copper fill factor of the slot 110 is high, or when the stack thickness of the wire harness ring relative to the stator is too short, or when the thickness of the slot shoulder 1034 is too thin, the deep lip 1033 of the guide bar assembly 103 is prone to detach from the slot shoulder 1034, which in turn causes the edge of the slot shoulder 1034 of the tooth 107 to damage the wire harness 101.

[0052] Reference Figure 3 The thickness L1 of the groove shoulder 1034 is approximately the same as the length L0 of the deep lip 1033, for example, about 0.6 mm.

[0053] To address the aforementioned issues, some embodiments of this disclosure provide a wiring assembly 1000, which includes a support member 200 that can push a first guide bar 1031 radially outward toward the motor stator 11, thereby preventing the front end 1030 of the first guide bar 1031 from bending radially inward toward the stator.

[0054] Considering tolerances and deflection, the gaps between the inner peripheral wall of the motor stator 11, the wire stripper 102 sliding along the inner peripheral wall of the motor stator 11, and the guide bar sliding between the inner peripheral wall of the motor stator 11 and the wire stripper 102 are all greater than or equal to 0.1 mm, so as to facilitate the sliding of the wire stripper 102 and the guide bar.

[0055] After the alignment tool 105 is removed, the front end 1030 of the guide bar extending axially upward toward the motor stator 11 bends about 1 mm toward the radial inward side of the motor stator 11. Therefore, the guide bar can be prevented from bending by setting the support member 200, thereby preventing the deep lip 1033 of the first guide bar 1031 from disengaging from the slot shoulder 1034, thereby avoiding damage to the wire harness 101 by the edge of the slot shoulder 1034.

[0056] Reference Figure 7 and Figure 8The winding assembly 1000 includes a guide bar assembly 103. The guide bar assembly 103 includes a plurality of first guide bars 1031. The plurality of first guide bars 1031 are disposed radially inside the motor stator 11, and each first guide bar 1031 is correspondingly disposed with a tooth 107. For example, each first guide bar 1031 is located on the side of a tooth 107 facing the radial center of the motor stator 11.

[0057] Reference Figure 7 and Figure 8 The winding assembly 1000 also includes a support member 200. The support member 200 includes a support base 201 and a plurality of support portions 202. The plurality of support portions 202 are spaced apart circumferentially from the support base 201 and extend radially outward from the support base 201. The support portions 202 are correspondingly disposed with respect to the first guide bars 1031. During the winding process, the plurality of support portions 202 are located on the side of the plurality of first guide bars 1031 facing the radial center of the motor stator 11.

[0058] During the stator winding process in the circular wire motor, the support member 200 is supported on the inner side of the motor stator 11 and is configured to push the first guide bar 1031 in a direction from the radial center of the motor stator 11 toward the radial outer side of the motor stator 11, so as to support the first guide bar 1031 radially in the motor stator 11. In this way, by setting the support member 200, when the wire harness 101 is embedded into the motor stator 11, the front end 1030 of the first guide bar 1031 can be prevented from bending radially inward in the motor stator 11.

[0059] Here, supporting the first guide bar 1031 radially on the motor stator 11 means preventing the front end 1030 of the first guide bar 1031 from bending radially inward toward the stator. The first guide bar 1031 can still slide along the axial direction of the motor stator 11.

[0060] In some embodiments, refer to Figure 7 and Figure 8 The guide bar assembly 103 also includes a plurality of second guide bars 1032. The plurality of second guide bars 1032 are disposed on the side of the plurality of teeth 107 near the radial center of the motor stator 11. The second guide bars 1032 are correspondingly disposed to at least two teeth 107, and along the circumference of the motor stator 11, the width of the second guide bars 1032 is greater than the width of the first guide bar 1031.

[0061] In some embodiments, refer to Figure 7 A second guide bar 1032 is provided between two adjacent first guide bars 1031, or a first guide bar 1031 is provided between two adjacent second guide bars 1032.

[0062] In some embodiments, refer to Figure 8The plurality of support parts 202 include eight support parts 202, and the plurality of first guide bars 1031 include eight first guide bars 1031. The eight support parts 202 and the eight first guide bars 1031 are respectively arranged.

[0063] In some embodiments, refer to Figure 9 The end of the support portion 202 away from the radial center of the support member 200 is recessed toward the radial center of the support member 200 to form an opening 203. The opening 203 is abutted against the side of the corresponding first guide bar 1031 near the radial center of the stator. Thus, during the insertion of the wire harness into the slot 110 of the stator by means of the guide bar, the first guide bar 1031 can be provided at (e.g., against) the opening 203, so that the support portion 202 applies pressure to the first guide bar 1031 toward the radially outward side of the stator, thereby preventing the deep lip 1033 of the first guide bar 1031 from disengaging from the slot shoulder 1034, thereby preventing the edge of the slot shoulder 1034 from damaging the wire harness 101.

[0064] In some embodiments, refer to Figure 10 The wire-insertion assembly 1000 also includes a wire stripper 102 and an alignment tool 105. The wire stripper 102 is located on one side of the plurality of first guide bars 1031 near the radial center of the motor stator 11.

[0065] Reference Figure 10 The support member 200 is located at the top of the wire stripper 102 in the forward direction along the axial direction of the motor stator 11, and the support member 200 is located on the side near the radial center of the motor stator 11 relative to the wire harness located at the top of the wire stripper 102. The wire stripper 102, the support member 200 and the alignment tool 105 are arranged sequentially along the axial direction of the motor stator 11.

[0066] The end of the motor stator 11 facing the forward direction of the wire stripper 102 is defined as the top end of the motor stator 11, and the end opposite to the top end of the motor stator 11 is defined as the bottom end of the motor stator 11. The support part 202 is closer to the bottom end of the motor stator 11 than the support base 201.

[0067] In some embodiments, refer to Figure 10 The wire stripper 102 includes a push rod 1021 and a wire stripper body 1022. The push rod 1021 is configured to push the wire stripper body 1022 to slide along the axial direction of the motor stator 11, so that the support 200 located above the wire stripper 102 slides along the axial direction of the motor stator 11.

[0068] In some embodiments, refer to Figure 9The support base 201 has a through hole 208 at its radial center, and the handle (not shown) located at the top of the wire stripper 102 in the forward direction can be positioned in the through hole 208. In addition, by providing the through hole 208, materials can be saved and the cost of manufacturing the support 200 can be reduced.

[0069] Reference Figure 11 and Figure 12 The support member 200 is supported on the side of the first guide bar 1031 near the radial center of the stator, and pushes the first guide bar 1031 in a direction from the radial center of the motor stator 11 toward the radially outer side of the motor stator 11 to support the first guide bar 1031 radially along the stator. In this way, the end of the first guide bar 1031 can be prevented from bending radially inward toward the stator after the alignment tool 105 is removed, thereby helping to protect the wire harness 101.

[0070] In some embodiments of this disclosure, during the wire insertion process, the support member 200 is located on the side of the wire harness at the top of the wire harness in the forward direction of the wire stripper 102, near the radial center of the motor stator 11, and on the side of the first guide bar 1031 near the radial center of the stator motor stator 11. In this way, the support member 200 can continuously push the first guide bar 1031 radially outward from the motor stator 11 to support the first guide bar 1031 radially. This allows the wire harness to be protected even when the length of the wire harness loop is short, the slot fill factor of the round wire motor is increased to more than 49% (e.g., 60%), and the thickness of the slot shoulder 1034 of the stator tooth portion 107 is thin.

[0071] For example, refer to Figure 7 The thickness L1 of the slot shoulder 1034 can be shortened to less than 0.4 mm to further improve the copper fill factor.

[0072] In some embodiments, the support member 200 is made of resin, that is, the material of the support member 200 is resin, so that the support member 200 can slide relative to the guide bar assembly 103. In addition, the support member 200 can also remain elastic when it is located radially inside the motor stator 11, so as to reduce the gap along the radial direction of the motor stator 11 between the inner peripheral wall of the stator 11, the support member 200 and the guide bar assembly 103.

[0073] It should be noted that the wire embedding assembly 1000 can also omit the alignment tool 105, that is, the wire embedding process of the stator of the round wire motor can be achieved by only the wire stripper 102 and the support member 200. In this way, the support member 200 can also push the first guide bar 1031 radially outward from the motor stator 11 along the radial direction of the motor stator 11, thereby avoiding damage to the wire harness 101.

[0074] This application embodiment also provides a circular wire motor 600, which includes a rotor and a stator. The stator can be made with the support member 200 mentioned above, that is, the stator winding process is completed by using the support member 200.

[0075] This application also provides a vehicle, which is a new energy vehicle powered by electricity. In some embodiments, the new energy vehicle is a pure electric vehicle, a hybrid electric vehicle, or a fuel cell electric vehicle. In other embodiments, the new energy vehicle is a vehicle that uses a high-efficiency energy storage device such as a supercapacitor, flywheel battery, or flywheel energy storage device as its power source.

[0076] Reference Figure 13 The vehicle 10000 includes wheels 2000 and a powertrain 1001. The powertrain 1001 is used to drive the wheels 2000 to rotate, thereby enabling the vehicle 10000 to move.

[0077] Reference Figure 13 The vehicle 10000 also includes a transmission mechanism 3000, which is used to drive the powertrain 1001 and the wheels 2000. The powertrain 1001 converts electrical energy into mechanical energy and drives the wheels 2000 to rotate through the transmission mechanism 3000, thereby enabling the vehicle 10000 to move.

[0078] exist Figure 13 In the given embodiment, the powertrain 1001 is used to drive the rear wheels (wheels 2000 on the side closest to the rear of the vehicle) of the vehicle 10000 to rotate, and the front wheels of the vehicle 10000 are used to achieve steering. The vehicle 10000 is more responsive when steering and more stable when cornering.

[0079] In other embodiments, the powertrain 1001 is used to drive the front wheels (wheels 2000 on the side closest to the front of the vehicle) of the vehicle 10000 to rotate. The front wheels are used to achieve driving and steering. The front-wheel drive system has a simple structure, fewer parts, lighter weight, reduced power loss, higher transmission efficiency, and lower fuel consumption and cost.

[0080] Reference Figure 14 The structure shown in the dashed box is the powertrain 1001, which includes a circular wire motor 600 and a reducer 500. The circular wire motor 600 and the reducer 500 are connected in a transmission connection. The circular wire motor 600 converts electrical energy into rotational mechanical energy and outputs torque to the reducer 500. The reducer 500 includes a gear set (not shown). The reducer 500 reduces the rotational speed and increases the torque through the gear set, and transmits the power to the transmission mechanism 3000. The transmission mechanism 3000 then transmits the power to the wheel 2000 to drive the wheel 2000 to rotate.

[0081] It should be noted that since the stator of the circular wire motor 600 is made with the support member 200 mentioned above, the powertrain 1001 includes the circular wire motor 600, and the vehicle 10000 includes the powertrain 1001. Therefore, the technical effects of the circular wire motor 600, the powertrain 1001, and the vehicle 10000 can be referred to the technical effects of the support member 200 mentioned above, and will not be repeated here.

[0082] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A winding assembly for winding a stator in a circular wire motor, the stator including a plurality of teeth, the winding assembly including a plurality of first guide bars, wherein during winding, each of the plurality of first guide bars is disposed on the side of a corresponding tooth of the plurality of teeth near the radial center of the stator, characterized in that, The wire embedding assembly further includes a support member, the support member comprising: Support base; and Multiple support portions are spaced apart on the circumference of the support base and extend radially outward from the support base; the multiple support portions are correspondingly arranged with the multiple first guide bars; During the winding process, the support member is located on the inner diameter side of the stator and is configured such that each of the plurality of support portions abuts against the side of the corresponding first guide bar near the radial center of the stator, and pushes the corresponding first guide bar in a direction from the radial center of the stator toward the radial outer side of the stator.

2. The wiring assembly according to claim 1, characterized in that, The support component is made of resin material.

3. The wiring assembly according to claim 2, characterized in that, The end of the support portion away from the radial center of the support member is recessed toward the radial center of the support member to form an opening that fits against the side of the corresponding first guide bar near the radial center of the stator.

4. The wiring assembly according to claim 3, characterized in that, The support base has a through hole at its radial center.

5. The wiring assembly according to claim 4, characterized in that, The winding assembly also includes a plurality of second guide bars, each of which is located on the side of at least two consecutively arranged teeth of the plurality of teeth near the radial center of the stator during the winding process.

6. The wiring assembly according to claim 5, characterized in that, The second guide bar is alternately arranged with the first guide bar.

7. A support member for stator winding in a circular wire motor, characterized in that, The support member includes: A support base, wherein a through hole is provided at the radial center of the support base; and Multiple support portions are spaced apart on the circumference of the support base and extend radially outward from the support base; Wherein, the end of the support portion that is away from the radial center of the support member is recessed toward the radial center of the support member to form an opening.

8. The support member according to claim 7, characterized in that, The support component is made of resin material.

9. A circular wire motor, characterized in that, include: Rotor; and The stator, wherein the winding assembly according to any one of claims 1 to 6 completes the winding.

10. The circular wire motor according to claim 9, wherein, The thickness of the stator slot shoulder is less than 0.4 mm, and the copper fill factor of the stator is more than 49%.

11. A powertrain, characterized in that, The powertrain includes: speed reducer; and The circular wire motor according to claim 9 or 10 is connected to the reducer in a transmission connection.

12. A vehicle, characterized in that, The vehicles include: Wheels; and The powertrain of claim 11 is used to drive the wheels.

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