WO2024256091A1 - Stator à fil plat et moteur d'entraînement comprenant un tel stator - Google Patents

Stator à fil plat et moteur d'entraînement comprenant un tel stator Download PDF

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Publication number
WO2024256091A1
WO2024256091A1 PCT/EP2024/062785 EP2024062785W WO2024256091A1 WO 2024256091 A1 WO2024256091 A1 WO 2024256091A1 EP 2024062785 W EP2024062785 W EP 2024062785W WO 2024256091 A1 WO2024256091 A1 WO 2024256091A1
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WIPO (PCT)
Prior art keywords
slot
winding
layer
flat wire
centerline
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Ceased
Application number
PCT/EP2024/062785
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English (en)
Inventor
James Wang
Steven SHANG
Sun DAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Automotive Technologies Suzhou Co Ltd
Mahle International GmbH
Original Assignee
Mahle Automotive Technologies Suzhou Co Ltd
Mahle International GmbH
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Application filed by Mahle Automotive Technologies Suzhou Co Ltd, Mahle International GmbH filed Critical Mahle Automotive Technologies Suzhou Co Ltd
Publication of WO2024256091A1 publication Critical patent/WO2024256091A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings

Definitions

  • This application covers the technical field of drive motor, specifically a flat wire stator assembly and drive motor.
  • the existing flat wire motor stator assembly is mostly a distance winding, It usually consists of stator cores, which have mounting slots open up the circumference of the stator core, and two mounting slots adjacent to them form stator teeth, which are wound on the stator core by stator teeth.
  • stator cores which have mounting slots open up the circumference of the stator core, and two mounting slots adjacent to them form stator teeth, which are wound on the stator core by stator teeth.
  • the eguivalent pitch between the phase bands of the same phase winding at adjacent poles is egual to the pitch.
  • the pitch winding structure can cause the drive motor to have a higher counter potential harmonic, which in turn results in a higher torgue pulsation of the motor, which affects the overall vehicle comfort.
  • stator winding of the motor is usually divided into two parts, and the center line of the two parts of the winding is staggered. This results in reduced torgue pulsation.
  • too many windings will make the torgue pulsation optimization in the low speed zone less obvious.
  • a flat-wire stator assembly and drive motor are therefore urgently needed to optimize torgue pulsation in both high and low speed zones. summary of the invention This request provides a flat-wire stator assembly and drive motor to address the problem of not optimizing torque pulsation in both high and low speed zones.
  • this application provides a flat wire stator assembly, including: Stator core and windings, the stator core opened with mounting through holes, the inner wall of the mounting through hole is provided with multiple slots in its own circumference, each of which extends in the direction of the axis of the stator core, parts of the winding are embedded in the mounting slots, parts of the winding are located outside the mounting slots, Each of the mounting slots has n layers of grooves set apart in the radial direction;
  • the winding in each phase shall consist of at least three parts, the first, second and third parts of which shall be distributed on n layers of the groove in the direction of the notch of the mounting groove pointing toward the bottom of the groove, the first part having a layer number of layers, the number of layers of the second part is b, the number of layers of the third part is c, where a+b+c ⁇ n and n is the full number;
  • the centerline of the winding in Part I and Part III is distributed symmetrically with respect to the centerline of the winding in Part II, the centerline of the winding in Part I and Part III is misplaced with the centerline of the winding in Part II by the number of mounting slots equal to x.
  • centerline of the winding in Part I and in Part III is distributed symmetrically with respect to the centerline of the winding in Part II, and the centerline of the winding in Part I and in Part III is misplaced with the centerline of the winding in Part II by the number of mounting slots equal to x.
  • n is even.
  • a, b, and c are even numbers.
  • mounting slots described are rectangular slots.
  • the number of slots of the mounting slots Q 2mpq, where p is the pole pair of the stator assembly and m is the number of phases of the stator assembly, q is the number of slots per phase per pole.
  • the winding has at least two phases, with insulation between adjacent two-layer winding structures belonging to different phases, in the same mounting slots.
  • the application provides a drive motor, including: Rotor assembly, the rotor assembly is set in the space formed by the inner wall of the installation through hole.
  • FIG. 1 The structural diagram of the stator assembly provided for this application embodiment
  • Figure 2 provides an overhead view of the stator assembly provided for the embodiment of this application;
  • Figure 3 shows an enlarged view of A in Figure 2;
  • FIG. 4 An expanded diagram of the U phase windings provided for embodiment 1 of this application;
  • FIG. 5 The expansion diagram of the three-phase winding provided for embodiment 1 of this application;
  • Figure 6 shows a comparison of the application embodiment with the low speed zone torque pulsation of the existing technology
  • Figure 7 shows the high speed zone torque pulsation comparison between the embodiment of this application and the existing technology
  • FIG. 8 An expanded diagram of the U phase windings provided for embodiment 2 of this application.
  • FIG. 9 The expansion diagram of the three-phase winding provided for embodiment 2 of this application.
  • FIG. 10 An expanded diagram of the U phase windings provided for embodiment 3 of this application.
  • FIG. 11 The three-phase winding expansion diagram provided for embodiment 3 of this application.
  • the general low speed motor speed is 3000 ⁇ 6000rpm
  • the speed of the medium speed motor is 6000 to l OOOOrpm
  • the speed of the high speed motor is more than l OOOOrpm.
  • the pole pitch refers to the range of each pole along the inner circle of the motor stator core, i.e. the span of the adjacent N and S poles relative to the groove.
  • the pitch is the distance crossed by the upper and lower edges of a coil and is expressed in y; for flat wire motors, the equivalent pitch is often used to describe the combined effect of the wide range of U-lines that form a winding, as there may be multiple spans. Even if the equivalent pitch is used as the pitch of the winding, the equivalent pitch is the distance between the first and second phase bands of the same phase winding at adjacent poles.
  • stator windings include full-distance windings, longdistance windings and short-distance windings, where The pitch winding is specified with the pitch equal to the pitch of the sub-winding, and the long pitch winding is specified with the pitch less than the pitch of the sub-winding.
  • the windings of the stator assembly are generally divided into two parts, one of which has an equivalent pitch set to a short distance to achieve the effect of reducing torque pulsation.
  • stator assembly found that if the number of winding layers in the premise, continue to follow the "whole-short" setting, the torque pulsation optimization effect of the low speed zone of the drive motor is not good. It is not possible to balance optimum torque pulsation between high and low speed zones.
  • this application is creative proposed a flat-wire stator assembly and drive motor, by changing the distribution of windings to reduce the harmonics of the windings counter-emotive to achieve the effect of optimizing the torque pulsation in both the high and low speed regions.
  • the stator assembly consists of stator core 1 and 3-phase winding, stator core 1 is cylindrical and stator core 1 is equipped with mounting through holes 11 , as shown in Figure 1 .
  • the inner wall of the mounting through hole 1 1 has multiple slots 12 in its own circumference, either slot 12 extends along the axis of the stator core 1 , the part of the winding 2 is embedded in the mounting slot 12, which acts as a stop fixing for the winding 2,
  • the part of the winding 2 is located outside the mounting slots 12, each mounting slot 12 has n layers of grooves set in the radial direction, and specifically, n > 8.
  • stator core 1 is cylindrical and is merely an illustrative and not a restrictive statement, and that any shape of stator core 1 may be used as stator core 1 in this application provided that it is not inconsistent with the idea of the invention of this application.
  • the pole pair p of the stator assembly is 3
  • the stator slot number Q is 54
  • the slot number Q 2mpq of the stator slot, where q is the number of slots per phase per pole, and q is 3 per phase per pole by the formula above.
  • the number of phases m of the stator assembly is 3 and the sight stator winding 2 includes the U phase winding. V phase windings, W phase windings. It is understood that the number of phases of a stator assembly of 3 is only an illustrative and not a restrictive statement, and that any phase number stator assembly may be used as a flatwire stator assembly in this application provided that it is not inconsistent with the idea of the invention of the application.
  • Each phase winding consists of at least three parts, with the first, second and third parts distributed along the side of the mounting groove pointing toward the bottom of the groove, and the equivalent pitch of the first to third parts equal to the pole pitch.
  • the centerlines of the windings of the first and third parts are located on both sides of the centerlines of the windings of the second part; the centerlines of the windings of the first and third parts are at least one slot apart from the centerlines of the windings of the second part 12.
  • the centerline of the winding of the first and third parts is distributed symmetrically with respect to the centerline of the winding of the second part, and the centerline of the winding of the first and third parts is misaligned with the centerline of the winding of the second part with the number of slots equal to x, 1 ⁇ x ⁇ 2.
  • the centerline of the windings of both the first and third sections will be one slot 12 different from the centerline of the windings of the second section.
  • the round winding refers to the equivalent pitch between the bands of the same winding at adjacent poles equal to the pitch. If the number of slots per phase is q per pole is 3, the centerline of the middle groove in the three consecutive stator slots occupied by the same phase winding at that pole is the centerline of the winding.
  • the winding spread diagram is usually used to show the distribution of the winding coils in stator slots 11 , with the row heading slot number and the column heading Layer, and the bottom and slot sides are usually filled in the first and last rows of the diagram, respectively, to distinguish the direction in which the layer numbers are arranged, and to separate Layers by adding the layer numbers to the side of the column heading, Layerl and Layer2 are part of the same layer if the a layer includes Layerl and Layer2.
  • Each specific cell is filled in with a number plus a plus or minus sign, for example U+ or U-, where "+" indicates that the current flows into the winding, and indicates that the current flows out of the winding.
  • Figure 4 shows the U-phase windings of the 6-pole 54-slot, corresponding to the first part from the slot side to the bottom of the slot.
  • Part II, Part III i.e., layer a, layer b, c-layer, corresponding to, a layer consists of Layer?
  • Layer8 Layer b consists of Layer3 (Layer 3) to Layer6 (Layer 6)
  • layer c consists of Layerl (Layer 1), Layer2 (Layer 2), numbered sequentially from 1 to 54 for the 54 mounting slots 12 of Core 1 .
  • “U+” indicates that current flows into the U-phase windings and "U-" indicates that current flows out of the U-phase windings.
  • the centerline of the winding of the first part differs from the centerline of the winding of the second part by one slot 12
  • the centerline of the winding of the third part differs from the centerline of the winding of the first part by one slot 12
  • the centerlines of the winding of the first and third parts are located on both sides of the centerline of the winding of the second part, specific,
  • the centerline of the winding in the first part is to the left of the centerline of the winding in the second part and the centerline of the winding in the third part is to the right of the centerline of the winding in the second part, i.e. the centerline of the winding in the first part is two slots 12 apart from the centerline of the winding in the third part.
  • the part of the a-layer is routed as follows: Slot 17, Slot 7 to Slot 26, Layer 8, Slot 18, Slot 7 to Slot 27, Layer 8, Slot 19, Layer 7 to Slot 28, Layer 8.
  • the part of the b is routed as follows: Slot 18 Layer 3 to Slot 27 Layer 4, Slot 19 Layer 3 to Slot 28 Layer 4, Slot 20 Layer 3 to Slot 29 Layer 4, Slot 18 Layer 5 to Slot 27 Layer 6, Slot 19 Layer 5 to Slot 28 Layer 6, Slot 20 Layer 5 to Slot 29 Slot Level 6.
  • the part of the c-tier is routed as follows: Slot 19, Slot 1 to Slot 28, Layer 2, Slot 20, Slot 1 to Slot 29, Layer 2, Slot 21 , Slot 1 to Slot 30, Layer 2.
  • Figure 5 is an expanded diagram of the three-phase winding for embodiment 1 , corresponding to the first and second parts of the three-phase winding from the slot side to the bottom side of the groove, respectively.
  • the third part, the a, b, c, in the diagram, Accordingly, the a layer consists of Layer7, Layer8, and the b layer consists of Layer3 through Layer6.
  • the c-layer consists of Layer! (Layer 1), Layer2 (Layer 2), 54 stator slots 11 of the stator core 1 are numbered sequentially from 1 to 54, and "U+" indicates that current flows into the U phase windings.
  • the V-phase portion of the a-slice is routed as follows: Slot 20, Slot 7 to Slot 29, Layer 8, Slot 21 , Slot 7 to Slot 30, Layer 8, Slot 22, Layer 7 to Slot 31 , Layer 8.
  • the W-phase of the a- layer is routed as follows: Slot 23, Slot 7 to Slot 32, Layer 8, Slot 24, Slot 7 to Slot 33, Layer 8, Slot 25, Slot 7 to Slot 34, Layer 8.
  • the V-phase portion of the b-slice is routed as follows: Slot 21 , Slot 3 to Slot 30, Layer 4, Slot 22, Slot 3 to 31 , Layer 4, Slot 23, Slot 3 to Slot 32, Layer 4; Slot 21 , Slot 5 to Slot 30, Layer 6, Slot 22, Slot 5 to 31 , Layer 6, Slot 23, Slot 5 to Slot 31 Level 6.
  • Part of the B- phase is routed as follows: Slot 24 Layer 3 to Slot 33 Layer 4, Slot 25 Layer 3 to Slot 34 Layer 4, Slot 26 Layer 3 to Slot 35 Layer 4; Slot 24 Layer 5 to Slot 33 Layer 6, Slot 25 Layer 5 to Slot 34 Layer 6, Slot 26 Layer 5 to 3 Slot 5 Tier 6.
  • the V-phase portion of the c-slice is routed as follows: Slot 22 Tier 1 to Slot 31 Tier 2, Slot 23 Tier 1 to Slot 32 Tier 2, Slot 24 Tier 1 to Slot 33 Tier 2.
  • the part of the c-layer W phase is routed as follows: Slot 25, Slot 1 to Slot 34, Layer 2, Slot 26, Slot 1 to Slot 35, Layer 2, Slot 27, Slot 1 to Slot 36, Layer 2.
  • all three parts of this embodiment are of a well-spaced winding structure, and the distribution of winding 2 is altered by diverting the centerline of the winding in the first and third parts from the centerline of the winding in the second part. This in turn reduces the harmonics of the windings 2 counter-EMF to optimize the torque pulsation.
  • the parameters for the scale are basically the same as in embodiment 1 , with the following different parameters:
  • the centerlines of all winding layers are collinear, i.e. the equivalent pitch for the proportional winding is an integer pitch.
  • Figure 6 is a low- speed torque pulsation comparison graph
  • Figure 7 is a high-speed torque pulsation comparison graph
  • the longitudinal parameter of Figures 6 and 7 is the percentage reduction in torque pulsation, specifically, IMPLEMENT EXAMPLE 1
  • IMPLEMENTATION 1 of this application has approximately 1 % lower torque pulsation in the low speed zone than the existing technology and approximately 17.5% lower torque pulsation in the high speed zone.
  • This embodiment 1 can be seen to combine torque pulsation optimization in both high and low speed zones.
  • Figure 8 is a 6-pole, 54-slot, U-phase windings flattened out, corresponding to the first part from the slot side to the bottom of the slot.
  • Part II, Part III i.e., layer a, layer b, the c-layer, corresponding to, the a layer consists of Layer5 (Layer 5) through Layer8 (Layer 8) and the b layer consists of Layer3 (Layer 3).
  • Layer4, layer c consists of Layerl , Layer2, the 54 mounting slots 12 of the iron core 1 are numbered from 1 to 54, "U+” indicates that current flows into the U- phase windings and "U-” indicates that current flows out of the U-phase windings.
  • the centerline of the winding of the first and third parts is one slot 12 different from the centerline of the winding of the second part, and the centerlines of the winding of the first and third parts are symmetrically distributed in relation to the centerline of the winding of the second part, specifically, the centerline of the winding of the first part is located to the left of the centerline of the winding of the second part.
  • the centerline of the winding of the third part is located to the right of the centerline of the winding of the second part, i.e. the centerline of the winding of the first part is two slots 12 apart from the centerline of the winding of the third part.
  • the part of the layer is routed as follows: Slot 17 Tier 5 to 26 Tier 6, Slot 18 Tier 5 to 27 Tier 6, Slot 19 Tier 5 to 28 Tier 6; Slot 17 Tier 7 to 26 Tier 8, Slot 18 Tier 7 to 27 Tier 8, Slot 19 Tier 7 to 28 Slot Level 8.
  • Part of the b is routed as follows: Slot 18, Slot 3 to Slot 27, Layer 4, Slot 19, Slot 3 to Slot 28, Layer 4, Slot 20, Slot 3 to Slot 29, Layer 4.
  • the part of the c-tier is routed as follows: Slot 19, Slot 1 to Slot 28, Layer 2, Slot 20, Slot 1 to Slot 29, Layer 2, Slot 21 , Slot 1 to Slot 30, Layer 2.
  • Figure 9 is an expanded diagram of the three-phase winding for embodiment 2, corresponding to the first and second parts of the three-phase winding from the slot side to the bottom side of the groove, respectively.
  • the third part, the a, b, c, in the diagram, Accordingly, the a layer consists of Layer5 (Layer 5) through Layer8 (Layer 8), and the b layer consists of Layer3 (Layer 3), Layer4 (Layer 4).
  • the c-layer consists of Layerl (Layer 1), Layer2 (Layer 2), 54 stator slots 11 of the stator core 1 are numbered sequentially from 1 to 54, and "U+" indicates that current flows into the U phase windings.
  • the V-phase portion of the a-layer is routed as follows: slot 20 layer 5 to 29 layer 6, slot 21 layer 5 to 30 layer 6, slot 22 layer 5 to 31 layer 6; slot 20 layer 7 to 29 layer 8, slot 21 layer 7 to 30 layer 8, slot 22 layer 7 to Slot 31 Tier 8.
  • the part of the W-phase of the a-layer is routed as follows: Slot 23 Tier 5 to Slot 32 Tier 6, Slot 24 Tier 5 to Slot 33 Tier 6, Slot 25 Tier 5 to Slot 34 Tier 6; Slot 23 Tier 7 to Slot 32 Tier 8, Slot 24 Tier 7 to Slot 33 Tier 8, Slot 25 Tier 7 to Slot 34 Level 8.
  • the V-phase portion of the b-slice is routed as follows: Slot 21 , Slot 3 to Slot 30, Layer 4, Slot 22, Slot 3 to Slot 31 , Layer 4, Slot 23, Slot 3 to Slot 32, Layer 4.
  • Part of the B-layer W phase is routed as follows: Slot 24 Level 3 to Slot 33 Level 4, Slot 25 Level 3 to Slot 34 Level 4, Slot 26 Level 3 to Slot 35 Level 4.
  • the V-phase portion of the c-slice is routed as follows: Slot 22 Tier 1 to Slot 31 Tier 2, Slot 23 Tier 1 to Slot 32 Tier 2, Slot 24 Tier 1 to Slot 33 Tier 2.
  • the part of the c-layer W phase is routed as follows: Slot 25, Slot 1 to Slot 34, Layer 2, Slot 26, Slot 1 to Slot 35, Layer 2, Slot 27, Slot 1 to Slot 36, Layer 2.
  • the three parts of this embodiment are of a well-spaced winding structure, and the distribution of the winding 2 is changed by diverting the centerline of the winding in the first and third parts from the centerline of the winding in the second part. This in turn reduces the harmonics of the windings 2 counter-EMF to optimize the torque pulsation.
  • Figure 10 shows the U-phase winding of the 6-pole 54-slot, corresponding to the first part from the slot side to the bottom side of the slot.
  • Part II, Part III i.e., layer a, layer b, c-layer, corresponding to, a layer consists of Layer7, Layer8, Layer b consists of Layer5 (Layer 5), Layer 6 (Layer 6), and layer c consists of Layer! (Layer 1) through Layer4 (Layer 4), numbered sequentially from 1 to 54 for 54 mounting slots 12 of Core 1 .
  • “U+” indicates that current flows into the U-phase windings and "U-" indicates that current flows out of the U-phase windings.
  • the centerline of the winding of the first part differs from the centerline of the winding of the second part by one slot 12
  • the centerline of the winding of the third part differs from the centerline of the winding of the first part by one slot 12
  • the centerlines of the winding of the first and third parts are located on both sides of the centerline of the winding of the second part, specific,
  • the centerline of the winding in the first part is to the left of the centerline of the winding in the second part and the centerline of the winding in the third part is to the right of the centerline of the winding in the second part, i.e. the centerline of the winding in the first part is two slots 12 apart from the centerline of the winding in the third part.
  • the part of the a-layer is routed as follows: Slot 17, Slot 7 to Slot 26, Layer 8, Slot 18, Slot 7 to Slot 27, Layer 8, Slot 19, Layer 7 to Slot 28, Layer 8.
  • Part of the b is routed as follows: Slot 18, Slot 5 to Slot 27, Slot 19, Slot 5 to Slot 28, Layer 6, Slot 20, Slot 5 to Slot 29, Layer ⁇ .
  • the part of the c-tier is routed as follows: Slot 19 Tier 1 to Slot 28 Tier 2, Slot 20 Tier 1 to 29 Tier 2, Slot 21 Tier 1 to Slot 30 Tier 2; Slot 19 Tier 3 to Slot 28 Tier 4, Slot 20 Tier 3 to Slot 29 Tier 4, Slot 21 Tier 3 to 30 Slot Layer 4.
  • Figure 11 is an expanded diagram of the three-phase winding for embodiment 3, corresponding to the first and second parts of the three-phase winding from the slot side to the bottom side of the groove, respectively.
  • the third part, the a, b, c, in the diagram, Accordingly, layer a includes Layer7 (Layer 7), layer 8 (Layer 8), and layer b includes Layer5 (Layer 5).
  • Layer6 (layer 6), the c-layer consists of Layer!
  • stator slots 11 of the stator core 1 are numbered sequentially from 1 to 54, “U+” indicates that current flows into the U phase windings, “U-” indicates current flow out of the U-phase winding, “V+” indicates current flow into the V-phase winding, “V-” indicates current flow out of the V-phase winding, “W+” indicates current flow into the W-phase winding, “W-” indicates that the current flows out of the W-phase windings.
  • the V-phase portion of the a-slice is routed as follows: Slot 20, Slot 7 to Slot 29, Layer 8, Slot 21 , Slot 7 to Slot 30, Layer 8, Slot 22, Layer 7 to Slot 31 , Layer 8.
  • the W-phase of the a- layer is routed as follows: Slot 23, Slot 7 to Slot 32, Layer 8, Slot 24, Slot 7 to Slot 33, Layer 8, Slot 25, Slot 7 to Slot 34, Layer 8.
  • the V-phase portion of the b-slice is routed as follows: Slot 21 , Slot 5 to Slot 30, Layer 6, Slot 22, Slot 5 to Slot 31 , Layer 6, Slot 23, Slot 5 to Slot 31 , Layer 6.
  • Part of the B-layer W phase is routed as follows: Slot 24 Tier 5 to Slot 33 Tier 6, Slot 25 Tier 5 to Slot 34 Tier 6, Slot 26 Tier 5 to Slot 35 Tier 6.
  • the V-phase portion of the c-slice is routed as follows: Slot 22 Tier 1 to Slot 31 Tier 2, Slot 23 Tier 1 to Slot 32 Tier 2, Slot 24 Tier 1 to Slot 33 Tier 2; Slot 22 Tier 3 to Slot 31 Tier 4, Slot 23 Tier 3 to Slot 32 Tier 4, Slot 24 Tier 3 to Slot 33 4.
  • the part of the c- layer W phase is routed as follows: Slot 25, Slot 1 to Slot 34, Layer 2, Slot 26, Slot 1 to Slot 35, Layer 2, Slot 27, Slot 1 to Slot 36, Layer 2.
  • all three parts of this embodiment are of a well-spaced winding structure, and the distribution of winding 2 is altered by diverting the centerline of the winding in the first and third parts from the centerline of the winding in the second part. This in turn reduces the harmonics of the windings 2 counter-EMF to optimize the torque pulsation.
  • the embodiment of this application also provides a drive motor, which can be a permanent magnet synchronous motor, an AC asynchronous motor, etc.
  • the drive motor consists of the rotor assembly and the stator assembly of the embodiment of this application, which is located in a space formed around the inner wall of the installation through hole 11.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

Un stator à fil plat comprend un noyau de fer de stator externe et un enroulement, une pluralité de fentes s'ouvrant vers la circonférence interne et une pluralité d'enroulements de phase étant agencée dans les fentes. Chaque enroulement de phase est constitué d'au moins trois parties, une première partie occupant les couches les plus à l'extérieur d'une fente et une troisième partie des couches d'enroulement les plus intérieures de ladite fente. Les trois parties comprennent le même pas polaire. Chaque partie de chaque phase est positionnée dans au moins trois fentes adjacentes, de telle sorte qu'un centre de chaque branche d'enroulement pourrait être déterminé, le centre de la première partie étant une fente espacée du centre de la deuxième partie et deux fentes espacées du centre de la troisième partie. L'invention concerne en outre un moteur d'entraînement comprenant un tel stator.
PCT/EP2024/062785 2023-06-16 2024-05-08 Stator à fil plat et moteur d'entraînement comprenant un tel stator Ceased WO2024256091A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202321551780.XU CN220254203U (zh) 2023-06-16 2023-06-16 一种扁线定子组件及驱动电机
CN202321551780X 2023-06-16

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WO2024256091A1 true WO2024256091A1 (fr) 2024-12-19

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PCT/EP2024/062785 Ceased WO2024256091A1 (fr) 2023-06-16 2024-05-08 Stator à fil plat et moteur d'entraînement comprenant un tel stator

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Citations (4)

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DE112013000618T5 (de) * 2012-01-19 2014-10-16 Hitachi Automotive Systems, Ltd. Rotierende elektrische Maschine und mit der rotierenden elektrischen Maschine ausgestattetes Fahrzeug
EP3240148A1 (fr) * 2014-12-26 2017-11-01 Hitachi Automotive Systems, Ltd. Machine électrique tournante et véhicule comprenant ladite machine électrique tournante
EP3471239A1 (fr) * 2017-10-13 2019-04-17 Aisin Seiki Kabushiki Kaisha Appareil électrique rotatif
WO2022089848A1 (fr) * 2020-10-29 2022-05-05 Valeo Siemens Eautomotive Germany Gmbh Stator pour une machine électrique, et machine électrique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112013000618T5 (de) * 2012-01-19 2014-10-16 Hitachi Automotive Systems, Ltd. Rotierende elektrische Maschine und mit der rotierenden elektrischen Maschine ausgestattetes Fahrzeug
EP3240148A1 (fr) * 2014-12-26 2017-11-01 Hitachi Automotive Systems, Ltd. Machine électrique tournante et véhicule comprenant ladite machine électrique tournante
EP3471239A1 (fr) * 2017-10-13 2019-04-17 Aisin Seiki Kabushiki Kaisha Appareil électrique rotatif
WO2022089848A1 (fr) * 2020-10-29 2022-05-05 Valeo Siemens Eautomotive Germany Gmbh Stator pour une machine électrique, et machine électrique

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