Stator end plate, motor and stator wiring method
By designing the winding and connection parts of the stator end plate, the problem of large space occupancy of lead wire connection in the motor is solved, and the compact layout of the stator and efficient space utilization are realized.
Patent Information
- Application Number
- CN202411980279.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-11
AI Technical Summary
The connecting part of the phase wire of some motors and the lead wire of the winding occupies a large space and cannot meet the compactness requirements of the motor.
A stator end plate is designed, including a main body structure, a winding part and a connecting part. The winding part is used to wind the lead wire of the winding, and connect the lead wire with the phase wire through the connecting part, limiting the connecting part to the inside of the edge of the stator end plate, thereby reducing the space occupied.
By adjusting the extension direction of the lead wire of the winding, sufficient space is left to set the connection part, reducing the space occupied by the stator end plate, and improving the space utilization of the stator and the compactness of the internal structure.
Smart Images
Figure CN119813614A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of motors, and in particular to a stator end plate, a motor, and a wiring method for a stator. Background Art
[0002] The connection parts of the phase wires and the lead wires of the windings of some known motors occupy a large space and cannot meet the compactness requirements of the motors. Summary of the invention
[0003] The present application provides a stator end plate, a motor and a stator wiring method to solve the technical problem that the internal structure of some motors is not compact enough.
[0004] The embodiment of the present application is implemented as follows:
[0005] The present application provides a stator end plate, comprising a main body structure, a winding part and a connecting part. The main body structure comprises a main body and a plurality of winding parts arranged around the main body, two adjacent winding parts define a winding slot, and the winding part is configured to wind a winding. The winding part is arranged on the main body, and the lead wires of at least two windings are wound on the winding part. The connecting part is arranged on the inner side of the outer edge of the main body structure, and is used to connect at least two lead wires led out of the winding part with a phase line.
[0006] According to the stator end plate of the present embodiment, the extension direction of the lead wires of each winding can be adjusted by winding the lead wires of the windings with the winding part, and sufficient space can be reserved on the inner side of the stator end plate to set the connecting part, so that the connecting part between the lead wires and the phase wires is limited to the inner side of the edge of the stator end plate, so that the connecting part does not need to occupy the space outside the edge of the stator end plate, thereby reducing the space occupied by the stator end plate and improving the space utilization of the stator and the compactness of the internal structure.
[0007] In one possible implementation:
[0008] The winding portion is evenly distributed around the circumference of the main body, and includes a first winding post and a second winding post. The first winding post and the second winding post are spaced apart along the radial direction of the stator end plate. The first winding post, the second winding post and the main body structure are surrounded to form a wire groove, and the wire groove is used for the lead wire to pass through.
[0009] In one possible implementation:
[0010] The stator end plate further includes a fixing portion, which is disposed in the wire passing slot and fixes the lead wire in the wire passing slot.
[0011] In one possible implementation:
[0012] Along the radial direction of the stator end plate, the first winding post is located on the outside of the second winding post, and the second winding post is used to wind the lead wire. Along the circumferential direction of the stator end plate, the thickness of the second winding post gradually increases from the two ends of the second winding post to the middle of the second winding post.
[0013] In one possible implementation:
[0014] Along the radial direction of the stator end plate, the first winding post is located on the outside of the second winding post, the second winding post is used to wind the lead wire, and a guide groove is provided on the surface of the second winding post facing away from the first winding post, the guide groove extends along the second winding post from one side to the other side of the circumferential inner side of the stator end plate, and the guide groove is used to guide the lead wire to be wound around the winding portion.
[0015] In one possible implementation:
[0016] A first distance between the lead wire wound by the winding portion and the connecting portion is no greater than 15 mm.
[0017] In one possible implementation:
[0018] The number of the winding parts is 3N, N is a positive integer, the 3N winding parts are three groups of pole-phase winding parts, each group of the pole-phase winding parts includes N winding parts, and the three groups of pole-phase winding parts are distributed along the circumferential direction of the stator end plate. The number of the winding parts is three, and the three winding parts are arranged in a one-to-one correspondence with the three groups of pole-phase winding parts.
[0019] In one possible implementation:
[0020] The winding portion corresponds to one of the winding slots in the middle portion of the pole-phase winding portion along the circumferential direction of the stator end plate.
[0021] The present application also provides a motor, comprising a stator structure, the aforementioned stator end plate and a phase line. The stator structure comprises a plurality of windings. The stator end plate is arranged at one end of the stator structure. The phase line is connected to the lead-out line of the winding through the connecting portion of the stator end plate, and the phase line passes from the circumferential inner side of the stator end plate to the circumferential outer side.
[0022] In one possible implementation:
[0023] The motor also includes a control board, which is located radially outside the stator structure and spaced apart from the stator structure. The control board and the connecting part are respectively located on both sides of the circumference of the stator structure. The phase line is electrically connected to the control board, and the second distance between the control board and the outer circle of the stator structure is not greater than 40 mm.
[0024] The present application also provides a stator wiring method, comprising: providing a stator end plate, the stator end plate being provided with an outlet area and a winding portion; providing a phase line, the phase line passing from the inner side of the stator end plate through the outlet area to the outer side of the stator end plate; providing a winding, winding the lead wire of the winding around the winding portion and extending it in a direction away from the outlet area, connecting the lead wire to one end of the phase line located on the inner side of the edge of the stator end plate through a connecting portion, and making the connecting portion located on the inner side of the edge of the stator end plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0026] Figure 1 It is a schematic diagram of the partial structure of a motor according to an embodiment of the present application.
[0027] Figure 2 It is a schematic diagram of a partial three-dimensional structure of a motor according to an embodiment of the present application.
[0028] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at V in the middle.
[0029] Figure 4 This is a schematic structural diagram of the main structure and winding part of an embodiment of the present application.
[0030] Figure 5 This is an axial view of the main structure and winding part of one embodiment of the present application.
[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of a stator end plate according to an embodiment of the present application.
[0032] Figure 7 This is an axial view of a stator end plate according to an embodiment of the present application.
[0033] Figure 8 This is a flow chart of a stator wiring method according to an embodiment of the present application.
[0034] Description of main component symbols:
[0035]
[0036]
[0037] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION
[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.
[0039] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "or / and" used herein includes any and all combinations of one or more related listed items.
[0041] Some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features of the embodiments can be combined with each other.
[0042] See also Figure 1 and Figure 2, this embodiment provides a motor 100, including a stator structure 20, a stator end plate 10 and a phase line 32. The stator structure 20 includes a stator core 22 and a plurality of windings 21. Each winding 21 has a lead wire 31. The stator end plate 10 is arranged at one end of the stator structure 20, specifically at one axial end of the stator core 22. The stator end plate 10 includes a main structure 11, a winding portion 12 and a connecting portion 13. The main structure 11 includes a main body 111 and a plurality of winding portions 112 arranged around the main body 111, two adjacent winding portions 112 define a winding slot C4, and the winding portion 112 is configured to wind the winding 21. Specifically, the plurality of windings 21 are wound on the stator core 22 and the plurality of winding portions 112 in a one-to-one correspondence. The winding portion 12 is arranged on the main body 111, and the winding portion 12 is used to wind the lead wires 31 of at least two windings 21. The connection portion 13 is disposed on the inner side of the outer edge of the main structure 11 and is used to connect at least two lead wires 31 led out from the winding portion 12 with the phase wire 32. The phase wire 32 is connected to the lead wire 31 of the winding 21 through the connection portion 13 of the stator end plate 10, and the phase wire 32 passes from the circumferential inner side to the circumferential outer side of the stator end plate 10.
[0043] According to the stator end plate 10 of this embodiment, the extension direction of the lead wire 31 of each winding 21 can be adjusted by winding the lead wire 31 of the winding 21 with the winding part 12, and sufficient space can be reserved inside the stator end plate 10 to set the connection part 13, so that the connection part 13 between the lead wire 31 and the phase line 32 is limited to the inner side of the edge of the stator end plate 10, so that the connection part 13 does not need to occupy the space outside the edge of the stator end plate 10, thereby reducing the space occupied by the stator end plate 10, improving the space utilization of the stator and the compactness of the internal structure. At the same time, the winding process of the lead wire 31 on the winding part 12 is simple and easy to implement.
[0044] In addition, according to the stator end plate 10 of this embodiment, the amount of lead wires 31 of the winding 21 does not need to be increased, and while achieving a compact layout, the internal resistance of the motor 100 can be kept constant, thereby ensuring the efficiency of the motor 100. At the same time, the overall length of the lead wires 31 does not change much, which can avoid increasing the amount of enameled wires used, thereby achieving cost control.
[0045] In some embodiments, the connection portion 13 may be configured as a heat shrink tube to connect the lead wire 31 and the phase wire 32. The connection portion 13 may also be configured as other connection structures such as a connection joint. The length of the heat shrink tube may be set between 4 mm and 6 mm. Depending on the type of the motor 100, the length of the heat shrink tube may be shortened or increased according to actual conditions.
[0046] In some embodiments, see Figure 1, the first distance H1 between the lead wire 31 after winding by the winding part 12 and the connecting part 13 is not greater than 15 mm. In this way, sufficient space is provided for the lead wire 31 to extend from the winding part 12 to the connecting part 13 after winding, so that the connecting part 13 is arranged adjacent to the winding part 12, ensuring the reliability of the connection between the lead wire 31 and the phase line 32 through the connecting part 13.
[0047] Among them, H1 can be set to any one of 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm or 15mm.
[0048] The first distance H1 is the length of the portion of the lead wire 31 between the winding portion 12 and the corresponding connecting portion 13. The first distance H1 may be adjusted accordingly according to different models of the motor 100.
[0049] In some embodiments, see Figure 1 The motor 100 further includes a control board 40, which is located radially outside the stator structure 20 and spaced apart from the stator structure 20. The control board 40 and the connecting portion 13 are respectively located on both sides of the circumference of the stator structure 20. The phase line 32 is electrically connected to the control board 40. The second distance H2 between the control board 40 and the outer circle of the stator structure 20 is not greater than 40 mm. In this way, the distance between the control board 40 and the stator structure 20 can be further reduced, thereby reducing the overall volume of the motor 100 to meet the installation requirements of the motor 100 of products such as miniaturized power tools.
[0050] The motor 100 may be configured as a brushless DC motor 100 .
[0051] Specifically, the control board 40 includes a board body 41 and an electronic component 42, and the board body 41 and the stator structure 20 are arranged at intervals along the radial direction of the stator structure 20. The electronic component 42 is convexly arranged on the surface of the board body 41 facing the stator structure 20. The second distance H2 is the distance between the surface of the board body 41 facing the stator structure 20 and the outer circle of the stator structure 20. The phase line 32 is welded to the board body 41.
[0052] By limiting H2≤40 mm, sufficient space can be provided to accommodate the electronic components 42, and the internal volume of the motor 100 can be reduced, thereby further realizing a compact arrangement of the motor 100 and a miniaturized design of the motor 100. In addition, since the connection portion 13 is limited to the inner side of the edge of the stator end plate 10, the connection portion 13 does not need to occupy the space between the plate body 41 and the stator structure 20, thereby further reducing the size of H2.
[0053] In some embodiments, see Figure 2 and Figure 3The stator end plate 10 further includes a wire harness portion 113. The wire harness portion 113 is disposed on the main body portion 111. The wire harness portion 113 is used to lead the phase wire 32 from the circumferential inner side of the stator end plate 10 to the circumferential outer side.
[0054] In some embodiments, see Figure 3 The harness portion 113 is provided with a harness opening C3, and a plurality of phase wires 32 pass through the harness opening C3. Thus, the phase wires 32 can be easily fixed and guided in the passing direction, so that the arrangement of the phase wires 32 is easy to distinguish and facilitates subsequent maintenance and processing.
[0055] In some embodiments, see Figure 3 The harness portion 113 includes two first wall segments 1131 and one second wall segment 1132. The second wall segment 1132 extends along the circumferential direction of the stator end plate 10, and the second wall segment 1132 and the main body 111 are spaced apart along the axial direction of the stator end plate 10. Both ends of the second wall segment 1132 are connected to the main body 111 through two first wall segments 1131 respectively. The second wall segment 1132, the main body 111 and the two first wall segments 1131 are arranged to form a harness opening C3.
[0056] In some embodiments, a mounting hole K is provided in the middle of the second wall section 1132, and the mounting hole K is connected to the cable harness opening C3. The phase line 32 can be installed in the cable harness opening C3 through the mounting hole K. In this way, the convenience of installing the phase line 32 in the cable harness opening C3 can be improved.
[0057] In some embodiments, see Figures 2 to 5 , multiple winding parts 12 are evenly distributed around the circumference of the main body 111. The winding part 12 includes a first winding post 121 and a second winding post 122. The first winding post 121 and the second winding post 122 are spaced apart along the radial direction of the stator end plate 10, and the first winding post 121, the second winding post 122 and the main body structure 11 are surrounded to form a wire groove C1, and the wire groove C1 is used for the lead wire 31 to pass through.
[0058] In this embodiment, along the radial direction of the stator end plate 10, the width D2 of the wire slot C1 is between 1 mm and 1.4 mm. For example, the width D2 of the wire slot C1 can be set to any one of 1 mm, 1.1 mm, 1.2 mm, 1.3 mm or 1.4 mm.
[0059] In this embodiment, the winding portion 12 and the main body 111 may be constructed as an integrally formed structure to ensure the overall strength of the stator end plate 10. In other embodiments, the winding portion 12 and the main body 111 may also be constructed as a split structure, and the winding portion 12 and the main body 111 may be fixedly connected by a fastening structure such as screws or pins.
[0060] In other embodiments, the first winding pole 121 and the second winding pole 122 may also be arranged at intervals along the circumference of the main body 111. The distribution direction of the first winding pole 121 and the second winding pole 122 may be adjusted according to actual needs.
[0061] In some embodiments, see Figure 3 The two ends of the winding portion 12 along the circumference of the stator end plate 10 are located between the two ends of the winding slot C4 along the circumference of the stator end plate 10, and the length of the winding portion 12 along the circumference of the stator end plate 10 is less than or equal to two-thirds of the length of the winding slot C4 along the circumference of the stator end plate 10.
[0062] In some embodiments, see Figure 3 The stator end plate 10 further includes a fixing portion 14, which is disposed in the wire slot C1, and fixes the lead wire 31 in the wire slot C1. The fixing portion 14 can improve the fixing reliability of the lead wire 31 in the wire slot C1. The fixing portion 14 can be configured as a fixing glue or a fixing paint, and is fixed between the surface of the first winding post 121 and the surface of the second winding post 122 by applying glue or dripping paint.
[0063] In some embodiments, see Figures 3 to 5 , along the radial direction of the stator end plate 10, the first winding post 121 is located outside the second winding post 122, and the second winding post 122 is used to wind the lead wire 31. Along the circumferential direction of the stator end plate 10, the thickness of the second winding post 122 gradually increases from the two ends of the second winding post 122 to the middle of the second winding post 122. In this way, the middle part of the second winding post 122 is thicker and has higher strength, which can withstand the tension of the lead wire 31. The two ends of the second winding post 122 are thinner, which can facilitate the bending of the lead wire 31, thereby realizing multiple bending and winding of the lead wire 31, and improving the convenience of winding the lead wire 31.
[0064] Specifically, the surface of the second winding post 122 away from the first winding post 121 is an arc surface P, and the middle portion of the arc surface P protrudes radially inwardly along the stator end plate 10 , so that the second winding post 122 is thick in the middle and thin at both ends.
[0065] In some embodiments, see Figure 5, the thickness of each part of the first winding post 121 is substantially the same, and the surface of the first winding post 121 away from the second winding post 122 is arc-shaped, and the arc is substantially parallel to the arc of the outer surface of the stator core 22. The thickness D1 of the first winding post 121 is between 0.5 mm and 2.0 mm, and can be specifically set to any one of 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, and 2.0 mm.
[0066] In this embodiment, the wire groove C1 penetrates the winding part 12 along the circumference of the stator end plate 10 to improve the convenience of winding the lead wire 31. In other embodiments, the winding part 12 can also be constructed in the following form: the first winding post 121 is provided with a wire groove C1 opened along the circumference of the stator end plate 10, and the second winding post 122 is arranged inside the wire groove C1, so as to construct a U-shaped wire groove C1, and the lead wire 31 passes through the opening at one end of the wire groove C1 and around the second winding post 122 several times, and then passes through the opening at the other end of the wire groove C1.
[0067] In some embodiments, see Figure 4 and Figure 5 A guide groove C2 is provided on the surface of the second winding post 122 facing away from the first winding post 121. The guide groove C2 extends from one side of the second winding post 122 on the circumferential inner side of the stator end plate 10 to the other side. The guide groove C2 is used to guide the lead wire 31 to be wound around the winding portion 12.
[0068] In this way, the guide groove C2 can locate the winding position of the lead wire 31 on the second winding part 12, so that the lead wire 31 is wound neatly and reliably on the winding part 12. In addition, the guide groove C2 can also limit the lead wire 31 to reduce the possibility of the lead wire 31 loosening, and alleviate the vibration of the lead wire 31 when the motor 100 is vibrated, thereby reducing the possibility of the lead wire 31 being damaged by friction with the housing of the motor 100. In addition, the first winding post 121 can protect the lead wire 31 along the radial direction of the stator end plate 10, further reducing the possibility of the lead wire 31 being damaged by friction with the housing.
[0069] In some embodiments, the guide groove C2 is opened on the arc surface P.
[0070] In some embodiments, see Figure 4 There are multiple guide grooves C2, and the multiple guide grooves C2 are distributed at intervals along the axial direction of the stator structure 20, so that the coil formed in the winding process of the lead wire 31 is arranged along the axial direction of the stator structure 20, so that the lead wire 31 only occupies the axial space of the stator structure 20, greatly reducing the possibility of the lead wire 31 being bumped and damaged during the winding process.
[0071] In some embodiments, see Figure 6 and Figure 7 The number of winding parts 112 is 3N, N is a positive integer, and the 3N winding parts 112 are divided into three groups of pole-phase winding parts 15, each group of pole-phase winding parts 15 includes N winding parts 112, and the three groups of pole-phase winding parts 15 are distributed along the circumferential direction of the stator end plate 10. The number of winding parts 12 is three, and the three winding parts 12 are arranged in a one-to-one correspondence with the three groups of pole-phase winding parts 15. Among them, the lead wires 31 of each group of pole-phase winding parts 15 can be twisted together to form a combined wire, which is wound around the winding part 12 and connected to the phase line 32 through the connecting part 13.
[0072] In other embodiments, when the number of phases of the stator of the motor 100 changes, the number of the winding portions 12 may also change accordingly, and the number of the winding portions 12 may be the same as the number of phases of the stator of the motor 100 .
[0073] In this embodiment, the number of the winding parts 112 is 6.
[0074] In some embodiments, see Figure 6 and Figure 7 , along the circumferential direction of the stator end plate 10, the winding portion 12 corresponds to a winding slot C4 in the middle portion of the pole phase winding portion 15. In this way, the lead wires 31 of the multiple winding portions 112 of the pole phase winding portion 15 can be twisted into a combined wire more conveniently, thereby improving the rationality of the twisting layout of the lead wires 31 of the pole phase winding portion 15, and further reducing the space occupancy rate of the multiple lead wires 31 of the pole phase winding portion 15.
[0075] In this embodiment, the winding portion 12 is provided correspondingly to the winding groove C4 formed between the two winding portions 112 of the pole phase winding portion 15 .
[0076] See also Figure 8 The present application also provides a stator wiring method, including: providing a stator end plate 10, the stator end plate 10 is provided with an outlet area and a winding portion 12; providing a phase line 32, the phase line 32 passes from the inner side of the stator end plate 10 through the outlet area to the outer side of the stator end plate 10; providing a winding 21, winding the lead wire 31 of the winding 21 around the winding portion 12, and extending in a direction away from the outlet area, connecting the lead wire 31 and the end of the phase line 32 located on the inner side of the edge of the stator end plate 10 through a connecting portion 13, and making the connecting portion 13 located on the inner side of the edge of the stator end plate 10. The outlet area refers to the area of the stator end plate 10 where the wire bundle portion 113 is provided.
[0077] According to the stator wiring method of this embodiment, the lead wire 31, the phase wire 32 and the connecting part 13 can be installed compactly, thereby improving the structural compactness of the motor 100; further, the method can eliminate or reduce the situation of lead wire 31 breaking, reduce the gluing production process, improve production efficiency and reduce manufacturing costs.
[0078] The above implementation modes are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the above preferred implementation modes, a person skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.
Claims
1. A stator end plate, characterized in that: include: A main body structure, the main body structure comprising a main body portion and a plurality of winding portions arranged around the main body portion, two adjacent winding portions defining a winding slot, and the winding portions being configured to wind a winding; A winding part, the winding part is arranged on the main body part, and the lead wires of at least two windings are wound on the winding part; A connecting portion is arranged on the inner side of the outer edge of the main structure and is used to connect at least two lead wires led out from the winding portion with a phase line.
2. The stator end plate according to claim 1, characterized in that: The winding portion is evenly distributed around the circumference of the main body, and includes a first winding post and a second winding post. The first winding post and the second winding post are spaced apart along the radial direction of the stator end plate. The first winding post, the second winding post and the main body structure are surrounded to form a wire groove, and the wire groove is used for the lead wire to pass through.
3. The stator end plate according to claim 2, characterized in that: The stator end plate further includes a fixing portion, which is disposed in the wire passing slot and fixes the lead wire in the wire passing slot.
4. The stator end plate according to claim 2, characterized in that: Along the radial direction of the stator end plate, the first winding post is located on the outside of the second winding post, and the second winding post is used to wind the lead wire. Along the circumferential direction of the stator end plate, the thickness of the second winding post gradually increases from the two ends of the second winding post to the middle of the second winding post.
5. The stator end plate according to claim 2, characterized in that: Along the radial direction of the stator end plate, the first winding post is located on the outside of the second winding post, the second winding post is used to wind the lead wire, and a guide groove is provided on the surface of the second winding post facing away from the first winding post, the guide groove extends along the second winding post from one side to the other side of the circumferential inner side of the stator end plate, and the guide groove is used to guide the lead wire to be wound around the winding portion.
6. The stator end plate according to claim 1, characterized in that: A first distance between the lead wire wound by the winding portion and the connecting portion is no greater than 15 mm.
7. The stator end plate according to claim 1, characterized in that: The number of the winding parts is 3N, N is a positive integer, the 3N winding parts are three groups of pole-phase winding parts, each group of the pole-phase winding parts includes N winding parts, and the three groups of the pole-phase winding parts are distributed along the circumferential direction of the stator end plate; The number of the winding parts is three, and the three winding parts are arranged in one-to-one correspondence with the three groups of pole-phase winding parts.
8. The stator end plate according to claim 7, characterized in that: The winding portion corresponds to one of the winding slots in the middle portion of the pole-phase winding portion along the circumferential direction of the stator end plate.
9. A motor, characterized in that: include: a stator structure, the stator structure comprising a plurality of windings; The stator end plate according to any one of claims 1 to 8, wherein the stator end plate is provided at one end of the stator structure; A phase line, wherein the phase line is connected to the lead-out line of the winding through a connecting portion of the stator end plate, and the phase line passes from the circumferential inner side to the circumferential outer side of the stator end plate.
10. The motor according to claim 9, characterized in that: The motor also includes a control board, which is located radially outside the stator structure and spaced apart from the stator structure. The control board and the connecting part are respectively located on both sides of the circumference of the stator structure. The phase line is electrically connected to the control board, and the second distance between the control board and the outer circle of the stator structure is not greater than 40 mm.
11. A stator wiring method, characterized in that: include: Providing a stator end plate, wherein the stator end plate is provided with a wire outlet area and a winding portion; Providing a phase line, wherein the phase line passes from the inner side of the stator end plate through the line outlet area to the outer side of the stator end plate; A winding is provided, and a lead wire of the winding is wound around the winding portion and extended in a direction away from the lead wire area, and the lead wire is connected to an end of the phase wire located on the inner side of the edge of the stator end plate through a connecting portion, and the connecting portion is located on the inner side of the edge of the stator end plate.