Stator assembly, motor and vehicle

Abstract

The utility model relates to a stator assembly, a motor and a vehicle, the stator assembly comprises a winding support, a wire holder and a split support, a winding is wound on the winding support, the wire holder is used for enabling the winding wound by the winding support to be electrically connected with the outside, and the split support is detachably connected to the winding support. The split bracket comprises a surrounding part, a connecting part and a wire part, the surrounding part surrounds at least one central axis, the connecting part is fixedly connected with the wire holder, the wire part is provided with a wire wall surface, the wire wall surface guides the winding wound by the winding bracket to the connecting part, and the wire wall surface is arranged in the circumferential direction of the central axis. The wire wall surface is at least arranged between the two wire holders. According to the technical scheme, in the winding process, the winding wound by the winding support can be guided to the connecting part through the wire wall face, winding guiding of the winding is achieved, and overall assembly of the stator assembly is facilitated.

Description

Technical Field

[0001] The present application relates to the field of motors, and particularly to a stator assembly, a motor, and a vehicle. Background Art

[0002] With the development of the new energy vehicle industry, the development of its drive motors also tends to be high-voltage, high-speed, and miniaturized, which also poses requirements for the winding of motors.

[0003] In related technologies, a motor includes a stator, and the stator includes a winding, a skeleton, and a puncture terminal groove. During the winding process of winding the winding around the skeleton, it is necessary to manually place the enameled wire head in the puncture terminal groove. After winding, the wire head needs to be manually wound into the designated puncture terminal groove and fixed. The winding is difficult, resulting in low production efficiency. Summary of the Utility Model

[0004] Embodiments of the present application provide a stator assembly, a motor, and a vehicle, which are convenient for improving the winding efficiency of the stator assembly to at least partially solve the above technical problems.

[0005] To achieve the above object, according to the first aspect of the present application, a stator assembly is provided, including:

[0006] A winding support for winding the winding;

[0007] At least one wiring seat for electrically connecting the winding wound on the winding support to the outside;

[0008] A split support connected to the winding support;

[0009] Wherein, the split support includes:

[0010] A surrounding portion connected to the winding support;

[0011] A wire portion connected to the surrounding portion, the wire portion having a wire wall surface, and the wire wall surface being adapted to guide the winding wound on the winding support;

[0012] Wherein, in the circumferential direction of the central axis, the wire wall surface is at least disposed between two of the wiring seats.

[0013] Optionally, the split support further includes a connecting portion fixedly connected to the wiring seat;

[0014] Wherein, the connecting portion is connected between the wire portion and the wiring seat.

[0015] Optionally, the sum of the radian values of the wire wall surface in the circumferential direction of the central axis is greater than or equal to 90 degrees.

[0016] Optionally, at least a part of the wire wall surface is configured as a surface of revolution with the central axis as the axis of revolution.

[0017] Optionally, the split bracket is formed with a wire channel for the winding wound by the winding bracket to axially penetrate along the central axis.

[0018] Optionally, the wire channel is disposed between the wire wall surface and the surrounding portion.

[0019] Optionally, the wire portion further has a plurality of broken line columns disposed at different positions in the circumferential direction of the central axis, and the broken line columns extend radially along the central axis.

[0020] Optionally, the broken line column includes:

[0021] A first turning surface, parallel to the central axis;

[0022] A second turning surface, perpendicular to the central axis;

[0023] Wherein, in the circumferential direction of the central axis, the wire wall surface extends from the first turning surface to the second turning surface.

[0024] Optionally, the broken line column further includes an anti-fooling surface that intersects the central axis obliquely.

[0025] Optionally, different broken line columns are axially disposed at different axial positions on the central axis.

[0026] Optionally, the connection base is formed with a receiving groove for receiving the piercing terminal and a wire passing notch for communicating the receiving groove with the outside.

[0027] Optionally, the connection base further includes:

[0028] A wire hanging column, disposed on the inner groove wall of the receiving groove in the radial direction of the central axis;

[0029] Wherein, in the axial direction of the central axis, the wire passing notch is located between the notch of the receiving groove and the wire hanging column.

[0030] Optionally, the surrounding portion is provided with at least one card slot, and the card slots are disposed at different positions in the circumferential direction of the central axis;

[0031] The winding bracket includes a buckle adapted to be inserted into the card slot.

[0032] According to a second aspect of the present application, there is provided a motor, including: a stator assembly, the stator assembly being the stator assembly as described above.

[0033] According to a third aspect of the present application, a vehicle is provided, including an electric motor, and the electric motor is the electric motor as described above.

[0034] In the stator assembly of the embodiment of the present application, by providing a winding bracket, a wiring seat and a split bracket, the winding is wound on the winding bracket, and the wiring seat is used to electrically connect the winding wound on the winding bracket to the outside. The split bracket is connected to the winding bracket. The split bracket includes a surrounding portion and a wire portion connected to the surrounding portion. The surrounding portion is connected to the winding bracket, and the wire portion has a wire wall surface. The wire wall surface guides the winding wound on the winding bracket, and in the circumferential direction of the central axis, the wire wall surface is at least arranged between two wiring seats, ensuring that during the winding process, the wire wall surface can guide the winding wound on the winding bracket, achieving the effect of guiding the winding during the winding process of the winding, which is beneficial to the overall assembly of the stator assembly.

[0035] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] In order to more completely understand the present application and its beneficial effects, the following description will be made in conjunction with the drawings, where the same reference numerals represent the same parts in the following description.

[0038] Figure 1 is an exploded structural schematic diagram of a stator assembly and a rotor assembly of an electric motor provided in an exemplary embodiment of the present disclosure;

[0039] Figure 2 is a top view of the connection structure of a stator assembly and a rotor assembly of an electric motor provided in an exemplary embodiment of the present disclosure;

[0040] Figure 3 is a side view of an elastomer, a magnetic body and a rotor core provided in an exemplary embodiment of the present disclosure;

[0041] Figure 4 is a top view of an elastomer, a magnetic body and a rotor core provided in an exemplary embodiment of the present disclosure;

[0042] Figure 5 is an exploded structural schematic diagram of an elastomer, a magnetic body and a rotor core provided in an exemplary embodiment of the present disclosure;

[0043] Figure 6 It is another overall structural schematic diagram of an elastomer, a magnetic body, and a rotor core provided in an exemplary embodiment of the present disclosure;

[0044] Figure 7 is Figure 6 a side view of;

[0045] Figure 8 It is an overall structural schematic diagram of a first elastomer;

[0046] Figure 9 It is a side view of the overall structure of the first elastomer;

[0047] Figure 10 It is a front view of the overall structure group of the first elastomer;

[0048] Figure 11 It is a top view of the structure in which the first elastomer is inserted into the first elastomer groove;

[0049] Figure 12 It is a structural schematic diagram in which the first elastomer groove formed on the body of the rotor core is arc-shaped;

[0050] Figure 13 It is a structural schematic diagram of an outer retaining bridge;

[0051] Figure 14 It is the three-view drawing of the magnetic body;

[0052] Figure 15 It is an overall structural schematic diagram of another structure of the rotor core;

[0053] Figure 16 is Figure 15 a side view of;

[0054] Figure 17 is Figure 15 an exploded structural schematic diagram of;

[0055] Figure 18 It is a structural schematic diagram of a first punching sheet;

[0056] Figure 19 It is another structural schematic diagram in which a second elastomer groove is formed on the first punching sheet;

[0057] Figure 20 is Figure 19 a side view of;

[0058] Figure 21 It is a structural schematic diagram in which a third elastomer groove is formed on a second punching sheet;

[0059] Figure 22 It is a structural schematic diagram of a first punching sheet;

[0060] Figure 23It is a circle that is the outermost edge structure of the magnetic body;

[0061] Figure 24 It is a schematic diagram of the overall structure of the stator assembly;

[0062] Figure 25 It is an exploded schematic diagram of the overall structure of the stator assembly;

[0063] Figure 26 It is a schematic diagram of the connection structure of the winding support, the terminal block, the stator core and the split support;

[0064] Figure 27 It is Figure 26 the side view of;

[0065] Figure 28 It is a schematic diagram of the overall structure of the winding;

[0066] Figure 29 It is a schematic diagram of the overall structure of the split support;

[0067] Figure 30 It is a schematic diagram of the overall structure of the split support from another angle;

[0068] Figure 31 It is a schematic diagram of the overall structure of the split support from yet another angle;

[0069] Figure 32 It is a schematic diagram of the position structure of the wire hanging post and the folding post of the split support;

[0070] Figure 33 It is a schematic diagram of the position structure of the surrounding part and the wire part;

[0071] Figure 34 It is a schematic diagram of the structure of the wire part;

[0072] Figure 35 It is a schematic diagram of the overall structure of the winding support;

[0073] Figure 36 It is the front view of the winding support;

[0074] Figure 37 It is the top view of the winding support;

[0075] Figure 38 It is a schematic diagram of the overall structure of the first piercing terminal;

[0076] Figure 39 It is the front view of the first piercing terminal;

[0077] Figure 40 It is the side view of the first piercing terminal;

[0078] Figure 41 It is a schematic diagram of the overall structure of the second piercing terminal;

[0079] Figure 42 It is the front view of the second puncturing terminal;

[0080] Figure 43 It is the overall structural schematic diagram of the three-phase connection row;

[0081] Figure 44 It is the front view of the three-phase connection row;

[0082] Figure 45 It is the structural schematic diagram of the terminal of the three-phase connection row;

[0083] Figure 46 It is the side view of the three-phase connection row;

[0084] Figure 47 It is the structural schematic diagram of the connection between the three-phase connection row, the first connection seat and the phase wire;

[0085] Figure 48 It is the overall structural schematic diagram of the vehicle provided in the exemplary embodiment of the present disclosure;

[0086] Explanation of reference numerals:

[0087] 1. Vehicle; 10. Motor;

[0088] 100. Stator assembly;

[0089] 110. Winding bracket; 11a. Buckle; 11b. Winding space;

[0090] 111. Winding body; 111a. Upper layer of winding bracket; 111b. Middle layer of winding bracket; 111c. Lower layer of winding bracket;

[0091] 112. Winding part; 113. Lower wall structure; 114. Wire passing baffle;

[0092] 120. Connection seat;

[0093] 121. First connection seat; 122. Second connection seat; 122a. Accommodating groove; 122b. Wire passing notch; 123. Hanging wire post;

[0094] 130. Split bracket;

[0095] 131. Surrounding part; 131a. Groove; 1311. Surrounding body;

[0096] 132. Connecting part; 1321. First connecting part; 1322. Second connecting part;

[0097] 133. Conductive wire part; 133a. Conductive wire wall surface;

[0098] 1331, Fold Line Column; 1331a, First Steering Surface; 1331b, Second Steering Surface; 1331c, Anti-Fooling Surface;

[0099] 131b, Card Slot;

[0100] 134, Support Platform;

[0101] 140, Piercing Terminal; 141, First Piercing Terminal; 141a, Barbed Portion; 141b, Elastic Sheet Structure;

[0102] 142, Second Piercing Terminal;

[0103] 143, Three-Phase Wiring Row; 1431, Three-Phase Wiring Row Body; 1432, Three-Phase Wiring Row Terminal; 1433, Reinforcement Structure; 1434, Clearance Slot; 1435, Pit Structure; 1436, Cutting Slot;

[0104] 150, Stator Core;

[0105] 160, Winding; 161, Phase Line; 161a, First Lead Portion; 161b, Second Lead Portion;

[0106] 200, Rotor Assembly;

[0107] 210, Rotor Core; 210a, Assembly Slot; 210b, Inner Surface of Slot;

[0108] 211, Body; 211a, Shaft Hole; 2111, First Punching Sheet; 2112, Second Punching Sheet; 2113, Third Punching Sheet;

[0109] 210c, Elastic Body Slot; 210c1, First Elastic Body Slot; 210c2, Second Elastic Body Slot; 210c3, Third Elastic Body Slot;

[0110] 220, Magnetic Body; 221, Outer Surface; 222, Inner Surface;

[0111] 230, Elastic Body;

[0112] 231, Contact Portion; 2311, First Contact Portion; 2311a, Inner Bending Structure; 2311b, Outer Bending Structure;

[0113] 2312, Second Contact Portion;

[0114] 2301, First Elastic Body; 2302, Second Elastic Body;

[0115] 240, Outer Retaining Bridge;

[0116] 240a, Slot Wall Surface;

[0117] 240b, Clearance Surface;

[0118] 241. Claw part;

[0119] 250. Connecting body; 251. Crossing part. Specific embodiments

[0120] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present application.

[0121] According to the first aspect of the present application, the present application provides a motor 10. Refer to Figure 1 , including a stator assembly 100 and a rotor assembly 200. The stator assembly 100 and the rotor assembly 200 cooperate with each other, have good performance, and effectively extend the service life of the motor 10.

[0122] The rotor assembly 200 and the stator assembly 100 are movably connected. That is, the rotor assembly 200 is located inside the stator assembly 100, and the rotor assembly 200 rotates relative to the stator assembly 100, thereby realizing the conversion of mechanical energy and electrical energy.

[0123] In this embodiment, the axis of the power output shaft of the motor 10 is defined as the central axis to be able to explain the directions of the stator assembly 100 and the rotor assembly 200.

[0124] According to the second aspect of the present application, refer to Figure 1 and Figure 2 , a stator assembly 100 is provided. The stator assembly 100 includes a stator core 150, a winding bracket 110, a plurality of terminal blocks 120, and a split bracket 130.

[0125] Among them, the stator core 150 and the winding bracket 110 are connected. The winding bracket 110 is used for winding the winding 160. Each terminal block 120 is used to electrically connect the winding 160 wound by the winding bracket to the outside. The split bracket 130 is detachably connected to the winding bracket 110, and the split bracket 130 is arranged between the winding bracket 110 and the terminal block 120. By using the split bracket 130 to install the terminal block 120 on the winding bracket 110 and then winding the winding 160 on the winding bracket 110, the winding of the winding 160 and the electrical connection of the winding 160 are realized.

[0126] Refer to Figure 35 , the winding bracket 110 is made of injection plastic, and through an injection molding process, a skeleton structure is formed, and the winding bracket 110 is injection molded onto the stator core 150 at one time.

[0127] refer to Figures 35 to 37 The winding bracket 110 includes a winding body 111 and a winding portion 112. The winding body 111 has a winding space 11b. The winding portion 112 is formed on the winding body 111 and is located in the winding space 11b. The winding portion 112 is used for winding the winding 160, and the wire end of the winding 160 is introduced into the terminal holder 120 and then electrically connected to the outside. For example, after the wire end of the winding 160 is introduced into the terminal holder 120, the wire end is electrically connected to the outside by piercing the terminal 140.

[0128] An insulating layer with a certain wall thickness is formed on the winding body 111 and the winding portion 112 to protect the winding 160 during the winding process and to insulate the winding 160 from the stator core 150 .

[0129] refer to Figure 36 The winding body 111 includes, from top to bottom, a winding support upper layer 111a, a winding support middle layer 111b and a winding support lower layer 111c.

[0130] The split bracket 130 is detachably connected to the upper layer 111a of the winding bracket, a plurality of winding parts 112 are arranged on the middle layer 111b of the winding bracket, and an insulating layer is formed on the winding parts 112. The lower layer 111c of the winding bracket is used to support the winding 160 between the teeth of the stator core 150.

[0131] The lower layer 111c of the winding bracket has a lower wall structure 113. The bridge wires of the winding 160 between the teeth of the stator core 150 run on the outside of the lower wall structure 113. There are wire baffles 114 between adjacent lower frame wall structures, and the bridge wires between the teeth need to pass through the wire baffles 114.

[0132] The lower layer 111c of the winding bracket has several wire baffles 114. The wire baffles 114 adopt an incomplete equal height design so that the bridge wires between the teeth of the same phase can be set to the same height, and the bridge wires between the teeth of different phases can be set to different heights. The three-phase bridge wires can be divided into upper, middle and lower layers in an orderly manner to avoid accumulation.

[0133] refer to Figures 29 to 34 The split bracket 130 includes a surrounding portion 131, a connecting portion 132 and a wire portion 133, wherein the surrounding portion 131 surrounds at least one central axis, the connecting portion 132 is fixedly connected to the wiring holder 120, and the connecting portion 132 is arranged between the wire portion 133 and the wiring holder 120, the wire portion 133 has a wire wall 133a, and the wire wall 133a is used to introduce the winding 160 wound by the winding bracket 110 over the connecting portion 132 into the wiring holder 120, and in the circumferential direction of the central axis, the wire wall 133a is at least arranged between two wiring holders 120.

[0134] By providing a winding support 110, a plurality of connection terminals 120, and a split support 130, the winding 160 is wound around the winding support 110. The connection terminals 120 are used to electrically connect the winding 160 wound around the winding support 110 to the outside. The split support 130 is detachably connected to the winding support 110. The split support 130 is disposed between the winding support 110 and the connection terminals 120. The split support 130 includes a surrounding portion 131, a connecting portion 132, and a wire guiding portion 133. The surrounding portion 131 surrounds at least one central axis. The connecting portion 132 is fixedly connected to the connection terminal 120. The wire guiding portion 133 has a wire wall surface 133a. The wire wall surface 133a guides the winding 160 wound around the winding support 110 to the connecting portion 132. And in the circumferential direction of the central axis, the wire wall surface 133a is disposed at least between two connection terminals 120. During the winding process, the wire wall surface 133a can be used to guide the winding 160 wound around the winding support 110 to cross over the connecting portion 132 and be connected to the connection terminal, realizing the guiding of the winding of the winding 160, which is beneficial to the overall assembly of the stator assembly 100.

[0135] The winding 160 includes phase wires 161. The phase wires 161 have a first lead portion 161a and a second lead portion 161b. After connecting the stator core 150 to the winding support 110 and the split support 130 is also connected to the winding support 110, the phase wires 161 are wound around the winding portion 112 of the winding support 110. Both the first lead portion 161a and the second lead portion 161b are respectively guided and extended to the connecting portion 132 through the wire wall surface 133a of the wire guiding portion 133, and then cross over the connecting portion 132 and are connected into the connection terminal 120, completing the connection of the first lead portion 161a and the second lead portion 161b to the corresponding connection terminal 120. Thus, the guiding winding of the winding 160 of the stator assembly 100 is completed, avoiding incorrect winding of the winding 160, effectively reducing the defective rate, and also being beneficial to using an internal winding machine to wind the stator assembly 100, improving production efficiency.

[0136] In some embodiments, referring to Figure 30 , the connecting portion 132 is provided with two, defined as a first connecting portion 1321 and a second connecting portion 1322. The first connecting portion 1321 and the second connecting portion 1322 are relatively disposed on the surrounding portion 131 along the circumferential direction of the central axis of the surrounding portion 131, and are integrally formed with the surrounding portion 131. Three connection terminals 120 are respectively provided on the first connecting portion 1321 and the second connecting portion 1322, that is, three first connection terminals 121 are provided on the first connecting portion 1321, and three second connection terminals 122 are provided on the second connecting portion 1322. The first connection terminals 121 and the second connection terminals 122 are respectively connected to the first lead portion 161a and the second lead portion 161b of the three-phase wires 161 of the winding 160.

[0137] The first connecting portion 1321 and the second connecting portion 1322 are extending bosses formed on the surrounding portion 131.

[0138] In some embodiments, the winding 160 includes three-phase wires 161, and each phase wire 161 passes through the wire wall surface 133a so that the first lead portion 161a and the second lead portion 161b of each phase wire 161 are connected to the corresponding first terminal block 121 and second terminal block 122.

[0139] The first terminal block 121 is provided on the first connecting portion 1321. Three first terminal blocks 121 are formed on the first connecting portion 1321, and the three first terminal blocks 121 are all isolated. Three second terminal blocks 122 are provided on the second connecting portion 1322. Three second terminal blocks 122 are formed on the second connecting portion 1322, and the three second terminal blocks 122 are connected and arranged.

[0140] It can be understood that the three first terminal blocks 121 are all isolated and arranged on the extending boss, and the three second terminal blocks 122 are connected and arranged on different extending bosses.

[0141] In some embodiments, taking three terminal blocks as a group, two groups of terminal blocks 120 can be provided on the split bracket 130. Both groups of terminal blocks 120 play the role of connecting the winding. Of course, three groups or four groups can also be provided. Two of the groups of terminal blocks 120 are used to connect the winding, and the rest of the windings are in an idle state. After the used winding is damaged, it can be connected to the terminal block that was originally in an idle state, without replacing the entire split bracket.

[0142] In order to better wind each phase wire 161 of the winding 160 around the winding portion 112 of the winding bracket 110 and be able to connect to the first terminal block 121 or the second terminal block 122 along the wire wall surface 133a, in some embodiments, the sum of the arcs occupied by the wire wall surface 133a in the circumferential direction of the central axis is greater than or equal to 90 degrees, which can better conduct the phase wires 161 of the winding 160.

[0143] Along the circumferential direction of the central axis, the wire wall surface 133a is provided between the two terminal blocks that are farthest apart among the three first terminal blocks 121 and the three second terminal blocks 122. Thus, the winding of the winding 160 can be conducted to the greatest extent. In this case, the sum of the arcs occupied by the wire wall surface 133a in the circumferential direction of the central axis is 230°.

[0144] Of course, the sum of the arcs occupied by the wire wall surface 133a in the circumferential direction of the central axis can also be set to 120 or other angles, as long as it is greater than or equal to 90 degrees.

[0145] In some embodiments, the wire wall surface 133a is at least partially configured as a surface of revolution with the central axis as the axis of revolution.

[0146] Reference Figure 33 and Figure 34 , all the wall surfaces of the wire wall surface 133a are parallel to the central axis, which can prevent the winding wire from sliding radially along the wire wall surface 133a towards the central axis, realizing the stability during the process of guiding the lead portion of the winding 160 along the wire wall surface 133a to the connection portion, and at the same time facilitating the shaping of the wire wall surface 133a.

[0147] Of course, it is also possible that part of the wire wall surface 133a is parallel to the central axis and part intersects the central axis, or all parts of the wire wall surface 133a intersect the central axis. Compared with the way that all of the wire wall surface 133a is parallel to the central axis, the shaping method of this wire wall surface 133a is more complex.

[0148] In some embodiments, the split bracket 130 is formed with a wire channel for the winding 160 wound by the winding bracket 110 to axially penetrate along the central axis.

[0149] By providing the wire channel, the winding 160 wound by the winding bracket 110 can axially pass through the wire channel along the central channel, enter or exit the winding space 11b, connect the first lead portion 161a of each phase to the first terminal block 121 on the first connection portion 1321, and connect the second lead portion 161b to the second terminal block 122 on the second connection portion 1322, which is beneficial to realizing winding, wire crossing, and wire winding in the "needle-type inner winding" wire winding method.

[0150] In some embodiments, the wire channel is provided between the wire wall surface 133a and the surrounding portion 131.

[0151] Reference Figure 34 , the surrounding portion 131 includes an inner wall surface, the wire channel is formed by the wire wall surface 133a and the inner wall surface, the wire channel is communicated with the winding space 11b, and is respectively the first wire channel and the second wire channel. After the first lead portion 161a is connected to the first connection terminal, the second lead portion 161b of the winding enters the winding space 11b along the wire wall surface 133a, winds around the winding portion 112 of the winding bracket 110, then exits from the winding space 11b along the second wire channel, and is guided to the second terminal block 122 on the second connection portion 1322 along another wire wall surface 133a to complete the winding of one phase of the wire 161.

[0152] When winding the wire of another phase, the same winding method is adopted. The difference is that the first terminal block 121 and the second terminal block 122 connected to the wire 161 of the other phase are different from the first terminal block 121 and the second terminal block 122 connected to the wire 161 of this phase.

[0153] In some embodiments, the surrounding portion 131 is provided with a plurality of grooves 131a communicating with the wire channels. The grooves 131a are mainly used to facilitate demolding when the split bracket 130 is demolded.

[0154] Reference Figure 30 , the groove 131a is set as a groove with a groove bottom. Corresponding to each groove 131a, a phase line 161 distinguishing column is provided on the wire portion 133. The phase line 161 distinguishing column winds around each phase line 161. If the three phase lines 161 are defined as U, V, and W phase lines 161, the corresponding phase line 161 distinguishing columns are the U phase line 161 distinguishing column, the V phase line 161 distinguishing column, and the W phase line 161 distinguishing column.

[0155] In some embodiments, the wire portion 133 further has a plurality of broken line columns 1331 at different positions in the circumferential direction of the set central axis. The broken line columns 1331 extend substantially along the radial direction of the central axis.

[0156] By providing the broken line columns 1331, when the phase line 161 guides along the wire wall surface 133a to the connection base 120, the phase line 161 will pass through the broken line columns 1331 and be connected to the connection base 120. The broken line columns 1331 can fold the phase line 161 to facilitate the connection between the phase line 161 and the connection base 120, and a wire area can be formed between the broken line columns 1331 and the U phase line 161 distinguishing column, the V phase line 161 distinguishing column, and the W phase line 161 distinguishing column to conduct the U, V, and W phase lines 161.

[0157] In some embodiments, each broken line column 1331 includes a first turning surface 1331a and a second turning surface 1331b. The first turning surface 1331a is arranged parallel to the central axis, and the second turning surface 1331b is arranged perpendicular to the central axis.

[0158] When the phase line 161 conducts along the wire wall surface 133a and the lead portion of the phase line 161 is connected to the connection base 120, a part of the lead portion is bent after passing through the first turning surface 1331a and the second turning surface 1331b. Among them, in the circumferential direction of the central axis, the wire wall surface 133a extends from the first turning surface 1331a to the second turning surface 1331b, effectively increasing the acting area of the wire wall surface 133a.

[0159] Reference Figure 32 , both the first turning surface 1331a and the second turning surface 1331b are set as planes, and the first turning surface 1331a and the second turning surface 1331b are vertically and intersectingly arranged.

[0160] Each folded line column 1331 further includes an anti-fooling surface 1331c. The anti-fooling surface 1331c intersects the central axis obliquely. When the phase line 161 passes through the anti-fooling surface 1331c, the phase line 161 will slide along the anti-fooling surface 1331c and will not stay on the anti-fooling surface 1331c. Then the phase line 161 is re-wired to ensure that the phase line 161 passes through the first turning surface 1331a and the second turning surface 1331b.

[0161] To avoid the accumulation of the phase lines 161, the different folded line columns 1331 are axially arranged at different axial positions on the central axis. The folded line columns 1331 can be formed on the wire guiding wall surface 133a, and the folded line columns 1331 are arranged at different heights, so that the lead parts of the three phases can be orderly arranged in the upper, middle and lower layers, avoiding accumulation. At the same time, it can also enable the winding machine to achieve the effect of auxiliary commutation when walking on the split bracket 130.

[0162] In some embodiments, along the axial direction of the central axis, the folded line columns 1331 on the same side can be gradually increased in height.

[0163] In some embodiments, the wiring base 120 includes a receiving groove 122a, a wire passing notch 122b and a wire hanging post 1323.

[0164] Among them, the receiving groove 122a is formed on the wiring base 120. The piercing terminal 140 can be received by using the receiving groove 122a. The wire passing notch 122b can communicate the receiving groove 122a with the outside. The wire hanging post 1323 is arranged at the groove wall at the upper inner side of the receiving groove 122a in the radial direction of the central axis. In the axial direction of the central axis, the wire passing notch 122b is located between the notch of the receiving groove 122a and the wire hanging post 1323.

[0165] The receiving groove 122a is formed on the wiring base 120, and at the same time, the wire passing notch 122b is formed on the wiring base 120. The wire passing notch 122b is communicated with the receiving groove 122a. The lead part of the phase line 161 enters the receiving groove 122a, and at the same time, the lead part will extend out of the receiving groove 122a along the wire passing notch 122b and is connected to the wire hanging post 1323, which is convenient for the operation of the inner winding machine.

[0166] A support platform 134 can also be arranged in the receiving groove 122a to support the phase line 161.

[0167] To facilitate the connection and disassembly of the winding bracket 110 and the split bracket 130, the surrounding part 131 is provided with a plurality of card slots 131b at different positions in the circumferential direction of the central axis. At the same time, the winding bracket 110 includes a buckle 11a that can be embedded in the card slot 131b. The surrounding part 131 includes a surrounding body 1311. The connecting part 132 and the wire guiding part 133 are both formed on the surrounding body 1311, and the card slot 131b is opened on the surrounding body 1311.

[0168] The connection and disassembly of the winding support 110 and the split support 130 are realized by connecting the buckle 11a with the slot 131b.

[0169] In some embodiments, referring to Figure 26 , the split support 130 should be installed on the winding support 110 before the winding 160 is wound around the winding support 110, and the distance H2 between the winding support 110 and the split support 130 should satisfy 3 ≤ h ≤ 10 mm. This enables the inner winding needle to smoothly perform a circumferential cyclic operation around the teeth of the stator core 150, realizing winding between the teeth.

[0170] In some embodiments, referring to Figures 38 to 47 , the stator assembly 100 further includes a piercing terminal 140. The piercing terminal 140 can be inserted into the receiving groove of the terminal block 120 to physically connect with the terminal block 120 and form an electrical connection with the winding 160.

[0171] The piercing terminal 140 includes a first piercing terminal 141 and a second piercing terminal 142. The first piercing terminal 141 is physically connected to the first terminal block 121, and the second piercing terminal 142 is connected to the second terminal block 122. The three piercing terminals are formed separately, and the three second piercing terminals 142 are integrally formed. When the piercing terminal is physically connected to the first terminal block 121, it is equivalent to the piercing terminal 140 being inserted into the receiving groove 122a.

[0172] Insert 3 single first piercing terminals 141 into the receiving groove 122a of the first terminal block 121, and insert 1 integral second piercing terminal 142 into the receiving groove 122a of the second terminal block 122.

[0173] Before the piercing terminal 140 is inserted into the corresponding receiving groove 122a, the phase wire 161 should be placed on the support platform 134, and the lead portion has also been wound around the wire hanging post 1323. The receiving groove 122a and the support platform 134 can effectively support the phase wire 161.

[0174] After the piercing terminal 140 is inserted into the receiving groove 122a, the piercing parts of the first piercing terminal 141 and the second piercing terminal 142 cut through the paint film of the phase wire 161 and penetrate into the conductor of the phase wire 161, enabling electrical connection between the piercing terminal 140 and the phase wire 161.

[0175] Referring to Figure 39 , the piercing terminal 140 has a cutting groove 1436. After the piercing terminal 140 is inserted into the receiving groove 122a, the phase wire of the winding 160 is snapped into the cutting groove 1436, and at the same time, the paint film on the surface of the winding is cut through, thereby realizing the electrical connection between the winding 160 and the piercing terminal 140.

[0176] On each piercing terminal 140, a barb portion 141a is provided and inserted into the hook grooves on both sides of the receiving groove 122a, realizing the physical connection between the piercing terminal 140 and the wiring base 120, and making it difficult for the piercing terminal 140 to be disengaged from the receiving groove 122a.

[0177] The split-molded first piercing terminal 141 has a spring piece structure 141b for the electrical connection between the first piercing terminal 141 and the outside. Then, a three-phase wiring row 143 is inserted into the three first piercing terminals 141 and connected to the first piercing terminals 141 in the receiving groove 122a.

[0178] The three-phase wiring row 143 includes a three-phase wiring row body 1431 and three-phase wiring row terminals 1432. Through the plastic coating process, the three-phase wiring row terminals 1432 are formed as a whole on the three-phase wiring row body 1431. An avoidance groove 1434 is provided at the tail of the three-phase wiring row terminals 1432 to avoid the phase wire 161 and prevent the phase wire 161 in the receiving groove 122a from being shoveled off.

[0179] A strengthening structure 1433 is provided on the three-phase wiring row terminals 1432. After adding the avoidance groove 1434 at the tail of the three-phase wiring row terminals 1432, on the one hand, the mechanical strength of the tail structure is increased, making it not easy to be bent during insertion, and on the other hand, its conductivity is increased.

[0180] Reference Figure 46 ., there is also a pit structure 1435 on the three-phase wiring row terminals 1432. After inserting the three-phase wiring row 143 into the first piercing terminal 141, the pit structure 1435 cooperates with the barb portion 141a of the first piercing terminal 141, which can prevent the piercing terminal from being easily pulled out.

[0181] According to the third aspect of the present application, a rotor assembly is provided. Reference Figures 3 to 6 ., the rotor assembly 200 includes a rotor core 210 and a magnetic body 220. The material of the magnetic body 220 is neodymium iron boron or ferrite. Before the magnetic body 220 is installed into the assembly groove 210a, it is not magnetized. After the rotor core 210, the rotating shaft, the magnetic body 220, and the abutting portion 231 of the elastic body 230 are assembled into a whole, a special device is used for magnetization.

[0182] The rotor core 210 is formed with a plurality of assembly grooves 210a distributed circumferentially along the rotor assembly 200. At least a part of the magnetic body 220 is received in the assembly grooves 210a. The rotor core 210 includes a body, and the body is formed by stacking a plurality of punching sheets along the axial direction of the electronic rotor. The punching sheets are formed into a whole through processes such as self-locking points or rivets, adhesives, welding, etc.

[0183] Among them, a shaft hole 211a is formed on the body, which is equivalent to opening holes on each punching sheet. During the process of stacking a plurality of punching sheets, the holes on each punching sheet are arranged opposite to each other, and a body with a shaft hole 211a can be formed.

[0184] The assembly groove 210a on the rotor core 210 is formed by opening an opening groove in the circumferential direction of each punching sheet. During the process of stacking a plurality of punching sheets, the opening grooves at corresponding positions on each punching sheet are arranged opposite to each other, forming a rotor core 210 with a plurality of assembly grooves 210a.

[0185] The rotor core 210 forms or accommodates an elastic body 230. The elastic body 230 has an abutting portion 231 that at least partially penetrates into the assembly groove 210a when the elastic body 230 is in a natural state. In the radial direction of the rotor assembly 200, the abutting portion 231 is arranged between the body and the magnetic body 220, so that the elastic body 230 biases the magnetic body 220 at least in the radial direction of the rotor core 210.

[0186] By forming a plurality of assembly grooves 210a distributed along the circumferential direction of the rotor assembly 200 on the rotor core 210, at least a part of the magnetic body 220 is accommodated in the assembly groove 210a, completing the installation of the magnetic body 220 and the rotor core 210. At the same time, the rotor core 210 includes a body and an elastic body 230. A shaft hole 211a is formed on the body. The elastic body 230 is formed or accommodated on the rotor core 210. The elastic body 230 has an abutting portion 231 that at least partially penetrates into the assembly groove 210a when the elastic body 230 is in a natural state. In the radial direction of the rotor assembly 200, the abutting portion 231 is arranged between the body and the magnetic body 220, so that the elastic body 230 biases the magnetic body 220 at least in the radial direction of the rotor core 210, and further enables the elastic body 230 to apply a biasing force to the magnetic body 220, realizing the stable installation of the magnetic body 220 and the rotor core 210, improving the use stability of the rotor assembly 200, and ensuring the performance of the motor 10.

[0187] The elastic body 230 biases the magnetic body 220 at least in the radial direction of the rotor core 210. The biasing force received by the magnetic body 220 in the radial direction can prevent the magnetic body 220 from moving axially and radially. Among them, preventing the magnetic body 220 from moving radially is mainly that the biasing force balances the centrifugal force, and preventing the magnetic body 220 from moving axially mainly relies on the static friction force received by the magnetic body 220 in the axial direction, so as to achieve the effect that the magnetic body 220 is stably installed relative to the rotor core 210 both in the radial and axial directions.

[0188] In some embodiments, the magnetic body 220 has an arc-shaped outer surface 221 and a flat inner surface 222.

[0189] ReferenceFigure 14 The external surface 221 and the internal surface 222 are arranged opposite to each other in the radial direction. The external surface 221 is arranged outside the assembly groove 210a, the internal surface 222 is arranged inside the assembly groove 210a, and the abutting portion 231 is arranged between the body and the internal surface 222.

[0190] By arranging the external surface 221 and the internal surface 222 opposite to each other in the radial direction, arranging the external surface 221 outside the assembly groove 210a, arranging the internal surface 222 inside the assembly groove 210a, and arranging the abutting portion 231 between the body and the internal surface 222, the acting area of the magnetic body 220 receiving the biasing force transmitted from the abutting portion 231 can be effectively increased, and the installation stability between the magnetic body 220 and the rotor core 210 can be improved.

[0191] In some embodiments, the abutting portion 231 can be in direct contact with the magnetic body 220 to directly transmit the biasing force, avoid the loss of the biasing force, and achieve the stable connection between the rotor core 210 and the magnetic body 220.

[0192] Alternatively, an intermediate member can also be arranged between the abutting portion 231 and the magnetic body 220. The intermediate member can be in a sheet shape. By using the sheet-shaped intermediate member, the biasing force applied by the abutting portion 231 to the magnetic body 220 can be made uniform, and the situation that the magnetic body 220 is skewed due to uneven force on the magnetic body 220 can be avoided.

[0193] In some embodiments, the internal surface 222 is parallel to the axial direction of the rotor assembly 200 and the generatrix direction of the external surface 221.

[0194] By making the internal surface 222 parallel to the axial direction of the rotor assembly 200 and the generatrix direction of the external surface 221, the effect that the internal surface 222 is directly opposite to the abutting portion 231 is achieved, and the installation stability between the magnetic body 220 and the rotor core 210 is further improved.

[0195] In some embodiments, the rotor core 210 has a plurality of inner surface 210b of the bottom of the groove forming the assembly groove 210a; the rotor core 210 forms an elastic body groove 210c for accommodating at least a part of the elastic body 230 at the inner surface 210b.

[0196] By forming the elastic body groove 210c for accommodating at least a part of the elastic body 230 at the inner surface 210b of the rotor core 210, after the magnetic body 220 is assembled into the assembly groove 210a, during the rotation of the rotor assembly 200, after the abutting portion 231 of the elastic body 230 receives the reverse biasing force applied by the magnetic body 220, at least a part of the elastic body 230 can perform fine adjustment of movement in the elastic body groove 210c, avoid a large degree of deformation of the elastic body 230, and also avoid the magnetic body 220 from moving axially, thereby prolonging the overall service life of the rotor assembly 200.

[0197] After the magnetic body 220 is further assembled into the assembly groove 210a, in order to also prevent the magnetic body 220 from moving axially, in some embodiments, the rotor core 210 further includes a plurality of outer retaining bridges 240. Each outer retaining bridge 240 has a wall surface 240a that constitutes the wall of the assembly groove 210a. The part of the magnetic body 220 located in the assembly groove 210a is in contact with the wall surface 240a. Thus, a static friction force is generated between the wall surface 240a and the magnetic body 220 to prevent the axial movement of the magnetic body 220. Cooperating with the abutting portion 231 of the elastic body 230, the axial and radial movement of the magnetic body 220 is restricted.

[0198] In the radial direction of the rotor assembly 200, the outermost edge of the outer retaining bridge is located inside the outermost edge of the magnetic body 220. Referring to Figure 23 , the diameter of the circle where the outermost edge of the outer retaining bridge 240 is located is smaller than the diameter of the circle formed by the outer circle of the magnetic body 220. That is, the outer retaining bridge 240 is arranged in a sunken manner relative to the magnetic body 220.

[0199] The outer retaining bridge 240 further has an avoidance surface 240b that is recessed at least inward in the radial direction of the rotor assembly 200. The avoidance surface 240b is connected between the two wall surfaces 240a.

[0200] By using the combination of the sunken outer retaining bridge 240 and the inwardly recessed avoidance surface 240b, and the matching stator core 150, the magnetic circuit of the motor 10 can be optimized, obtaining a lower back electromotive force distortion rate, reducing torque ripple, reducing the harmonic content of the 5th and 7th orders, and improving the noise.

[0201] Referring to Figure 13 , there is a smoothly transitioning claw portion 241 between the avoidance surface 240b and the wall surface 240a. The claw portion 241 can prevent the magnetic body 220 from falling out of the assembly groove 210a when the magnetic body 220 is installed into the assembly groove 210a.

[0202] In some embodiments, a plurality of elastic bodies 230 are arranged in the axial direction of the rotor assembly 200. A plurality of abutting portions 231 can also be arranged, or a plurality of elastic bodies 230 and abutting portions 231.

[0203] Referring to Figures 4 to 11 , when a plurality of elastic bodies 230 are arranged in the axial direction of the rotor assembly 200, the elastic body 230 is defined as the first elastic body 2301 as a component that can be separately assembled onto the body of the rotor core 210. At this time, the abutting portion 231 is a part of the first elastic body 2301 and applies a biasing force to the magnetic body 220.

[0204] In some embodiments, the first elastomer 2301 has a plurality of first abutting portions 2311, which can increase the positions for applying a biasing force to the magnetic body 220.

[0205] Reference Figure 11 , the first elastomer 2301, as a part separately assembled onto the body, defines the elastomer groove 210c that houses part of the first elastomer 2301 as the first elastomer groove 210c1. At least part of the first abutting portions 2311 of the first elastomer 2301 intrude into the assembly groove 210a, facilitating the assembly of the rotor core 210 with the magnetic body 220 and the elastomer, making the operation convenient and preventing the magnetic body 220 from moving radially.

[0206] The overall height of the first elastomer groove 210c1 can be the same as the height of the body. That is to say, an opening is correspondingly formed on all the punching sheets that form the body. When all the punching sheets are stacked, the openings at the corresponding positions are also aligned to form the first elastomer groove 210c1. The first elastomer groove 210c1 is communicated with the assembly groove 210a. The plurality of first abutting portions 2311 on the first elastomer 2301 are biased towards the magnetic body 220. And the first elastomer groove 210c1 is integrally formed on the body, and the forming method is simple, which is convenient to be applied to production.

[0207] The first elastomer 2301 can be configured as a columnar structure with a plurality of bending structures. The first elastomer 2301 has a plurality of first abutting portions 2311, and each first abutting portion 2311 includes an inwardly bent inner bending structure 2311a or an outwardly bent outer bending structure 2311b that bends inward in the radial direction of the rotor assembly 200. The inner bending structure 2311a and the outer bending structure 2311b are arranged at different positions in the axial direction of the rotor assembly 200.

[0208] By arranging the inner bending structure 2311a and the outer bending structure 2311b at different positions in the axial direction of the rotor assembly 200 and biasing the magnetic body 220 by using the inner bending structure 2311a and the outer bending structure 2311b, the connection stability between the rotor core 210 and the magnetic body 220 is further improved when the subsequent rotor assembly 200 rotates.

[0209] Reference Figure 8 , Figure 9 and Figure 10 , the first elastomer 2301 can be set as a cylindrical structure. The first elastomer 2301 includes a first elastic body, the first elastic body is vertically arranged, the inwardly bent inner bending structure 2311a or the outwardly bent outer bending structure 2311b is a structure with a curved surface, and is smoothly transitioned with the first elastic body. Correspondingly, the first elastomer groove 210c1 is set as an arc shape, and the opening that forms the first elastomer groove 210c1 is also set as an arc shape, for example, it can be an arc shape of three-quarters of a circle.

[0210] In some embodiments, the inwardly bent structure 2311a or the outwardly bent structure 2311b is in direct contact with the body or the magnetic body 220, and the inwardly bent structure 2311a and the outwardly bent structure 2311b are arranged identically.

[0211] In order to more conveniently insert the first elastic body 2301 into the first elastic body groove 210c1 and simultaneously apply a certain squeezing force between the body and the magnetic body 220, in some embodiments, the height of the peak and valley of the inwardly bent structure 2311a and the outwardly bent structure 2311b is defined as H, the diameter of the first elastic body groove 210c1 is defined as φD, and the vertical distance from the bottom of the first elastic body groove 210c1 to the inner surface 210b of the assembly groove 210a is defined as C. Then the relationship among the three satisfies:

[0212] C < D < H, and H - C = 0.1 - 0.5 mm.

[0213] In this setting manner, the first elastic body 2301 can be more conveniently inserted into the first elastic body groove 210c1, and at the same time, a certain squeezing force is applied between the body and the magnetic body 220. This squeezing force will not cause the magnetic body 220 to break, and at the same time, this squeezing force can act evenly on the contact part between the magnetic body 220 and the outer retaining bridge 240. When the magnetic body 220 has an axial movement relative to the rotor core 210, the acting force on the contact part between the magnetic body 220 and the outer retaining bridge 240 can generate a certain static friction force, and this static friction force should be > 20 - 30 mg (where m is the weight of a single magnetic body 220), so as to prevent the magnetic body 220 from having an axial displacement relative to the rotor core 210.

[0214] In some embodiments, the rotor assembly 200 further includes a connecting body 250.

[0215] The connecting body 250 is respectively connected to two elastic bodies located at circumferentially different positions of the rotor assembly 200, and each connecting body 250 has at least a spanning portion 251 extending in a direction that intersects obliquely with the radial direction of the rotor assembly 200.

[0216] Reference Figure 11 , when the elastic body is circular cylindrical, the connecting body 250 is also set as circular cylindrical. The connecting body 250 can connect two elastic bodies located at circumferentially different positions of the rotor assembly 200, so as to bias the body and the magnetic body 220 at different circumferential positions. After the first elastic body 2301 is inserted into the first elastic body groove 210c1, the spanning portion 251 contacts the body.

[0217] Each connecting body 250 further includes a handle portion. After the first elastic body 2301 is inserted into the first elastic body groove 210c1, there is a spacing between the handle portion and the main body, facilitating the application of a force to the first elastic body 2301 during installation and disassembly.

[0218] In some embodiments, the elastic body and the connecting body 250 are integrally formed, resulting in a more stable structure. A snap ring can be used for the part where the elastic body and the connecting body 250 are integrally formed.

[0219] In some embodiments, referring to Figure 4 , the direction in which the first abutting portion 2311 of the first elastic body 2301 applies a biasing force to the magnetic body 220 can be oblique to the magnetic body 220. At this time, the component of the biasing force applied by the first abutting portion 2311 to the magnetic body 220 in the radial direction can prevent the magnetic body 220 from moving axially.

[0220] In some embodiments, the direction in which the first abutting portion 2311 applies a biasing force to the magnetic body 220 can be directly facing the magnetic body 220. At this time, the biasing force applied by the first abutting portion 2311 to the magnetic body 220 is a positive biasing force and is relatively large, which can prevent the magnetic body 220 from moving axially to a large extent.

[0221] In some embodiments, when multiple abutting portions are provided in the axial direction of the rotor assembly 200, referring to Figures 15 to 23 , the elastic body is directly formed on the main body of the rotor core 210 as a part of the main body of the rotor core 210. The abutting portion is a part of the main body. After the magnetic body 220 is installed in the assembly groove 210a, the abutting portion applies a biasing force to the magnetic body 220. The elastic body formed on the main body of the rotor core 210 is defined as the second elastic body 2302. Correspondingly, the abutting portion on the second elastic body 2302 is defined as the second abutting portion 2312. The elastic body groove that houses at least a part of the second elastic body 2302 is defined as the second elastic body groove 210c2. The punching sheet where the second elastic body 2302 is located is defined as the first punching sheet 2111, and the punching sheet adjacent to the first punching sheet 2111 below the main body is defined as the second punching sheet 2112.

[0222] Referring to Figure 19, a first square opening is formed in the circumferential direction of the first punching piece 2111, the second elastic body 2302 is formed in the first square opening of the first punching piece 2111, a second square opening is formed on the second punching piece 2112, and after all the second punching pieces 2112 are stacked, the first square openings are arranged opposite to each other to form a second elastic body groove 210c2, and the second square openings are arranged opposite to each other to form a third elastic body groove 210c3. After the punching pieces are stacked to form the body, the second elastic body 2302 located in the second elastic body groove 210c2 will bend towards the third elastic body groove 210c3 and has elasticity at the same time. After the magnetic body 220 is assembled into the assembly groove 210a, a part of the second elastic body 2302 will invade into the assembly groove 210a and then be in biased contact with the magnetic body 220, so as to apply a biasing force to the magnetic body 220.

[0223] The second elastic body 2302 is integrally formed with the first punching piece 2111 so that the second elastic body 2302 and the body are integrally arranged. By using the combined setting of the second elastic body 2302 and the outer retaining bridge 240, the magnetic body 220 can be axially and radially limited. After the magnetic body 220 is inserted into the assembly groove 210a, the second elastic body 2302 will further turn over and deform and extrude the magnetic body 220 outwards, generating a certain static friction force in the axial direction, so as to limit the axial movement of the magnetic body 220.

[0224] The second elastic body 2302 can be set as a sheet structure, and the thickness of the second elastic body 2302 and the first punching piece 2111 is uniformly equal, both set as t. The width of the second elastic body groove 210c2 is set as B, which is also equivalent to the width of the opening in the first direction being set as B. Then: B≥2t. After allowing the magnetic body 220 to apply a reverse biasing force to the second elastic body 2302, it is ensured that a part of the second elastic body 2302 can be smoothly located in the second elastic body groove 210c2 to avoid excessive stress concentration.

[0225] In order to better set the connection structure between the second elastic body 2302 on the first punching piece 2111 and the second punching piece 2112, the angle between the second elastic body 2302 and the first punching piece 2111 can be defined as β. Then: 30°≤β≤60°.

[0226] The length of the second elastic body 2302 is L1, and usually L1≥3t. The circle where the outermost edge of the second elastic body 2302 is located cannot exceed the diameter of the circle where the outermost edge of the rotor core 210 is located.

[0227] In some embodiments, one group of the first punching sheets 2111 is composed of 1 to 3 sheets. After the second elastomers 2302 on every 1 - 3 first punching sheets 2111 are stacked together, the length from the uppermost first punching sheet 2111 to the lowermost first punching sheet 2111 is defined as L2, and L2=(1 - 3)*t. In the body of a rotor core 210, usually, ≥2 groups are provided.

[0228] To avoid the influence of slotting on the performance of the motor 10, the width of the third elastomer groove 210c3 on the second punching sheet 2112 is set as A1, then:

[0229] A1 < D < A1 + 2B, 1.05*L2 ≤ C ≤ 1.3*L2.

[0230] One group of the second punching sheets 2112 usually consists of multiple sheets. After being stacked, the length from the uppermost second punching sheet 2112 to the lowermost second punching sheet 2112 is defined as L3, and the length L3=(3 - 8)*t, and L3 > L1 is satisfied. In one core, the number of groups of the second punching sheets 2112 is the same as that of the first punching sheets 2111.

[0231] The bending of the second elastomer 2302 of the first punching sheet 2111 points to the punching sheet. One group of the second punching sheets 2112 is arranged connectedly with one group of the first punching sheets 2111, and the second punching sheets 2112 are below the first punching sheets 2111.

[0232] The first punching sheets 2111 and the second punching sheets 2112 cannot be placed on the uppermost layer and the lowermost layer of the body. On both sides of the first punching sheets 2111 and the second punching sheets 2112, 2 - 10 third punching sheets 2113 will be provided again.

[0233] By arranging a plurality of elastomers or abutting parts in the axial direction of the rotor assembly 200, it is convenient for forming and installation.

[0234] When at least part of the magnetic body 220 is accommodated in the assembly groove 210a, the abutting parts on the body will apply a biasing pressure to the magnetic body 220 at least in the radial direction of the rotor core 210, avoiding the magnetic body 220 from moving axially, ensuring that the magnetic body 220 can be stably arranged in the assembly groove 210a, and the method of forming the second elastomer 2302 on the rotor core 210 can simplify the installation steps and save the assembly time.

[0235] According to the fourth aspect of the present application, a vehicle 1 is provided, including the above - mentioned motor 10. The vehicle 1 has all the beneficial effects of the above - mentioned motor 10, which will not be elaborated herein again.

[0236] The vehicle 1 can be a fuel vehicle, a plug - in hybrid vehicle or a new energy vehicle, etc. The present application does not make specific limitations thereto.

[0237] In the description of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0238] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0239] Among the embodiments, implementation manners and related technical features of the present application, they can be combined and replaced with each other without conflict.

[0240] The above are only the preferred embodiments of the present application and do not impose any form of limitation on the present application. Although the present application has been described by way of examples, and the descriptions of the respective embodiments have their own emphases, for parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application shall still be within the scope of the technical solution of the present application.

Claims

1. A stator assembly, characterized in that: include: A winding support, used for winding the winding; At least one terminal block, used to electrically connect the winding wound by the winding support to the outside; A split bracket connected to the winding bracket; Wherein, the split bracket comprises: a wrap-around portion connected to the winding bracket; A conductor portion connected to the surrounding portion, wherein the conductor portion has a conductor wall surface, and the conductor wall surface is suitable for guiding the winding wound by the winding bracket; Wherein, in the circumferential direction of the central axis, the wire wall surface is arranged at least between two of the wiring seats.

2. The stator assembly according to claim 1, characterized in that The split bracket also includes: A connecting portion, which is fixedly connected to the wiring seat; Wherein, the connecting portion is connected between the wire portion and the wiring seat.

3. The stator assembly according to claim 1, characterized in that: The sum of the arcs occupied by the wire wall surface in the circumferential direction of the central axis is greater than or equal to 90 degrees.

4. The stator assembly according to claim 3, characterized in that: At least a portion of the conductor wall surface is configured as a surface of a revolution with the central axis as a revolution axis.

5. The stator assembly according to claim 2, characterized in that: The split bracket is formed with a wire channel for the winding wound by the winding bracket to pass axially along the central axis.

6. The stator assembly according to claim 5, characterized in that The wire channel is arranged between the wire wall surface and the surrounding portion.

7. The stator assembly according to any one of claims 1 to 6, characterized in that: The guide wire portion further comprises a plurality of broken line columns which are arranged at different positions in the circumferential direction of the central axis, and the broken line columns extend in the radial direction of the central axis.

8. The stator assembly according to claim 7, characterized in that The broken line column comprises: A first turning surface, parallel to the central axis; a second turning surface, perpendicular to the central axis; Wherein, in the circumferential direction of the central axis, the wire wall surface extends from the first turning surface to the second turning surface.

9. The stator assembly according to claim 8, characterized in that The broken line column also includes an anti-fouling surface that obliquely intersects with the central axis.

10. The stator assembly according to claim 7, characterized in that The different broken line columns are arranged at different axial positions in the axial direction of the central axis.

11. The stator assembly according to any one of claims 1 to 6, characterized in that: The terminal block is formed with a receiving groove suitable for receiving the piercing terminal and a wire passing notch that connects the receiving groove with the outside.

12. The stator assembly according to claim 11, characterized in that The terminal block also includes: A wire hanging post is arranged on the inner wall of the receiving groove in the radial direction of the central axis; Wherein, in the axial direction of the central axis, the wire passing notch is located between the notch of the accommodating groove and the wire hanging column.

13. The stator assembly according to claim 1, characterized in that The surrounding portion is provided with at least one clamping groove, and the clamping groove is arranged at different positions in the circumferential direction of the central axis; The wire winding bracket includes a buckle suitable for being embedded in the slot.

14. A motor, characterized in that: include: A stator assembly, wherein the stator assembly is the stator assembly according to any one of claims 1 to 13.

15. A vehicle, characterized in that: It comprises a motor, wherein the motor is the motor as claimed in claim 14.

Images