WO2023109886A1 - Ensemble stator et moteur - Google Patents

Ensemble stator et moteur Download PDF

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Publication number
WO2023109886A1
WO2023109886A1 PCT/CN2022/139201 CN2022139201W WO2023109886A1 WO 2023109886 A1 WO2023109886 A1 WO 2023109886A1 CN 2022139201 W CN2022139201 W CN 2022139201W WO 2023109886 A1 WO2023109886 A1 WO 2023109886A1
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WO
WIPO (PCT)
Prior art keywords
stator
wire
slot
layers
wires
Prior art date
Application number
PCT/CN2022/139201
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English (en)
Chinese (zh)
Inventor
卢芳友
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上海易唯科电机技术有限公司
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Priority claimed from CN202111554823.5A external-priority patent/CN114243961A/zh
Priority claimed from CN202210079808.8A external-priority patent/CN114498994A/zh
Application filed by 上海易唯科电机技术有限公司 filed Critical 上海易唯科电机技术有限公司
Publication of WO2023109886A1 publication Critical patent/WO2023109886A1/fr

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    • 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
    • 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
    • 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
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto

Definitions

  • the application belongs to the technical field of flat wire motors, in particular to a stator assembly and a motor.
  • the present application provides a stator assembly, including a stator core and a stator winding; the stator core is provided with several stator slots, and the stator slots are arranged sequentially along the circumferential direction of the stator core, In the shape of a ring array; the winding of the stator winding adopts a rectangular conductor;
  • each stator slot 2+n layers of wire layers are sequentially arranged along the radial direction of the stator core; wherein, the two layers of wire layers near the outside of the stator core are double wire layers, and the remaining n layers of wire layers are single wire layers; n is an odd number greater than or equal to 1;
  • the span mode of the stator winding at the card-issuing end is as follows: the layer of wires closest to the stator core adopts a combination of long-distance and short-distance spans, and the remaining layers of wires only adopt the full-distance span mode; the connection mode at the card-issuing end is: Wire 1 is connected to wire 3 in another stator slot, wire 2 is connected to wire 4 in another stator slot; wire a is connected to wire a+1 in another stator slot, 4+n No. wire is connected to No. 4+n wire in another stator slot;
  • the span mode of the stator winding at the welding end is: only the whole pitch is used; the connection mode at the welding end is: the No. 1 wire is connected with the No. 1 wire in another stator slot, and the No. 2 wire is connected with the No. 3 wire in another stator slot.
  • the No. wire is welded, and the No. b wire is connected to the No. b+1 wire of another stator slot;
  • the width of the double wire layer is greater than that of the single wire layer.
  • two wires are arranged in the same double wire layer, and the two wires are arranged in sequence along the axial direction of the stator core; only one wire is arranged in the single wire layer.
  • C1 is the value of the whole pitch
  • C2 is the value of the short pitch
  • C3 is the value of the long pitch
  • Z is the number of stator slots on the stator core
  • P is the number of poles of the stator winding.
  • stator winding is composed of several minimum equalization units, and each branch of each phase winding is composed of a plurality of minimum equalization units connected in series and/or in parallel.
  • the present application also provides a motor.
  • This application adopts the grid-shaped wire arrangement method, that is, there are two wire layers near the outer side of the stator core, and two wires are arranged in each layer, which effectively avoids the excessive single-slot wire width-to-narrow ratio and reduces the wire forming When the required turning radius is reduced, the height of the motor axial winding end is reduced.
  • Fig. 1 shows the structural representation that the stator slot of the embodiment of the present application is provided with square-shaped square wire
  • Fig. 2 shows a schematic diagram of wires in a phase pole of an embodiment of the present application
  • FIG. 3 shows a schematic diagram of the first connection path of the minimum equalization unit A1 in the embodiment of the present application
  • FIG. 4 shows a schematic diagram of the first connection path of the minimum equalization unit A2 in the embodiment of the present application
  • FIG. 5 shows a schematic diagram of a second connection path of the smallest equalization unit A1 in the embodiment of the present application
  • FIG. 6 shows a schematic diagram of a second connection path of the minimum equalization unit A2 in the embodiment of the present application
  • Fig. 7 shows a schematic diagram of the minimum equalization unit A1 and the number and connection modes of the minimum equalization unit A1 corresponding to different branches of the embodiment of the present application;
  • Figure 8 shows the U-phase winding wiring diagram of the 48-slot 8-stage stator assembly when the lead-out wires of the embodiment of the present application are drawn out at the welding end;
  • Figure 9 shows the U-phase winding wiring diagram of the 48-slot 8-level stator assembly when the lead-out wires of the embodiment of the present application are drawn out at the card-issuing end;
  • Fig. 10 shows a schematic structural view of the card-issuing end of the stator assembly according to the embodiment of the present application
  • Fig. 11 shows a schematic structural view of the welding end of the stator assembly according to the embodiment of the present application
  • Fig. 12 is a schematic diagram of the structure of double Tian-shaped square wires arranged in the stator slot of the embodiment of the present application;
  • Fig. 13 is a schematic diagram of the structure of the equal-width stator slots in the embodiment of the present application.
  • the embodiment of the present application provides a motor with square wires in the shape of a square, and the motor includes a stator assembly.
  • the stator assembly includes a stator core and a stator winding; the stator core is substantially cylindrical, so as to accommodate the motor rotor assembly in the stator core.
  • a plurality of stator slots are arranged on the stator core, and the stator slots are arranged sequentially along the circumferential direction of the stator core, forming an annular array.
  • the winding wires of the stator windings adopt rectangular conductors, and the winding wires are evenly and symmetrically arranged in the stator slots.
  • the stator winding can be divided into a slot winding and an end winding;
  • the slot winding refers to the part of the rectangular conductor in the stator slot, and the end winding refers to the rectangular conductor in the The parts on both sides of the stator core.
  • the function of the end windings is to pair-connect rectangular conductors at different positions in different stator slots according to a certain span, so as to realize the internal connection of the stator windings.
  • the end windings are distributed on both sides of the stator core, which are respectively called hairpin ends and welding ends.
  • 2+n layers of wire layers are sequentially arranged in each stator slot along the radial direction of the stator core; among them, the two layers of wire layers near the outer side of the stator core are provided with two wires in each layer, which are recorded as double wires and the two wires in the same double wire layer are arranged sequentially along the axial direction of the stator core; the remaining wire layers are only provided with one wire, which is recorded as a single wire layer; n is an odd number greater than or equal to 1.
  • the width of the double wire layer is greater than that of the single wire layer.
  • the width refers to the length of the wire layer along the circumference of the stator core.
  • Set the grid-shaped wire arrangement that is, two layers of wires near the outer side of the stator core, and each layer has two wires, which effectively avoids the excessive single-slot wire width-to-narrow ratio and reduces the required time for wire forming.
  • the turning radius reduces the motor axial winding end height.
  • the path of the winding wires on the stator core is jointly determined by the span mode in the circumferential direction of the stator core and the connection mode in the radial direction of the stator core. That is, different layer slot matching methods correspond to different winding winding paths.
  • the spanning manner in the circumferential direction of the stator core includes: the spanning manner at the hairpin end and the spanning manner at the welding end.
  • the span method at the card-issuing end is as follows: the layer of wires closest to the inner circle of the stator core adopts the combination of long and short spans, and the remaining layers of wires only use full-distance spans. distance mode.
  • the span method at the welding end is: only the whole span method is adopted, that is, the span at the welding end is all the whole distance C1.
  • connection in the radial direction of the stator core includes: a connection at the hairpin end and a connection at the welding end.
  • the wires in each stator slot are numbered and named.
  • the two wires in the double wire layer closest to the outer circle of the stator core are defined as No. 1 wire and No. 2 wire; the two wires in the other double wire layer are defined as No. 3 Wire and No. 4 wire; all other wires in the single wire layer, along the outer circle side of the stator core to the inner circle side, are defined as No. 4+1 wire, No. 4+2 wire, ..., No. 4+n wire.
  • n is an odd number greater than or equal to 1.
  • connection method at the card-issuing end is as follows: No. 1 wire is connected to No. 3 wire in another stator slot, No. 2 wire is connected to No. 4 wire in another stator slot; No. a wire is connected to No. 4 wire in another stator slot The wire a+1 in the stator is connected, and the wire 4+n is connected to the wire 4+n in another stator slot.
  • a is an odd number, and 1+4 ⁇ a ⁇ 4+n; n is the number of single wire layers in each stator slot, 2+n is the number of all wire layers in each stator slot, and 4+n is the number of wire layers in each stator slot. The number of all wires in the slot.
  • connection method at the welding end is as follows: No. 1 wire is connected to No. 1 wire in another stator slot, No. 2 wire is welded to No. 3 wire in another stator slot, and No. b wire is connected to b+ in another stator slot.
  • No. 1 wire connection Among them, b is an even number, and 4 ⁇ b ⁇ 4+n; n is the number of single wire layers in each stator slot, 2+n is the number of all wire layers in each stator slot, and 4+n is the number of wire layers in each stator slot. All wire counts.
  • the path is set according to the above-mentioned span and layer connection method, so that the stator winding is composed of several minimum equalization units, and each branch of each phase winding is composed of multiple minimum equalization units connected in series and/or in parallel, so it can ensure that the stator winding The overall state of circuit equilibrium is reached.
  • both stator slots located in the same stage are defined as a phase pole, and the two stator slots in the same phase pole are respectively defined as pole position Q1 and pole position Q2.
  • both pole Q1 and pole Q2 are provided with 4+n wires.
  • each stator slot and the wires in each stator slot are named sequentially.
  • Z1 (1) represents the No. 1 wire of the No. 1 slot
  • Z2 (3) represents the No. 3 wire of the No. 2 slot.
  • the stator windings are three-phase windings, which are respectively W, V, and U phase windings.
  • Each phase winding includes one or more branches, and each branch is composed of a plurality of minimum equalization units connected in series and/or in parallel.
  • the smallest equalization unit refers to a sub-winding structure composed of winding elements of different phases, ie layers.
  • a branch winding of a motor phase winding has several such sub-winding structures in series, and as long as the number of sub-windings connected in series is equal between different branches, then the phase winding of the motor can be ensured.
  • the windings of the motors are identical in phase and inductance (that is, the motor windings are balanced windings).
  • the minimum equalization unit is divided into two winding paths, which are respectively marked as the minimum equalization unit A1 and the minimum equalization unit A2 (A1 and A2 are not shown in the figure).
  • the winding path of the smallest equalization unit A1 is: Z1(1) ⁇ Z7(3) ⁇ Z1(2) ⁇ Z7(4) ⁇ Z1 (4+1) ⁇ Z7(4+2) ⁇ ... ⁇ Z1(4+n) ⁇ Z8(4+n) ⁇ Z14(4+n-1) ⁇ Z8(4+n-2) ⁇ . .. ⁇ Z8(4+1) ⁇ Z14(4) ⁇ Z8(2) ⁇ Z14(3) ⁇ Z8(1).
  • the layers where the wires in all the slots are just cover all the wire layers in the two stator slots.
  • the wires in the slot passing through No. 1 slot and the wires passing through No. 7 slot in the smallest equalization unit A1 belong to the pole position Q1 in the same phase pole, and will pass through the slots of the two slots. After the wires are merged, it is equivalent to a stator slot full of wires; the wires in the slot passing through No. 8 slot and the wires passing through No. 14 slot in the minimum equalization unit A1 belong to the pole position Q2 in the same phase pole, and will pass through After the wires in the slots of the two slots are merged, it is equivalent to a stator slot full of wires. Therefore, the minimum equalization unit A1 can achieve local circuit equalization.
  • the winding path of the smallest equalization unit A2 is: Z2(1) ⁇ Z8(3) ⁇ Z2(2) ⁇ Z8(4) ⁇ Z2(4+1) ⁇ Z8(4+2), ⁇ ... ⁇ Z2(4+n) ⁇ Z7(4+n) ⁇ Z13(4+n-1) ⁇ Z7(4+n-2) ⁇ ... ⁇ Z7(4+1) ⁇ Z13( 4) ⁇ Z7(2) ⁇ Z13(3) ⁇ Z7(1).
  • the wires in the slot passing through No. 2 slot and the wires passing through No. 8 slot in the minimum equalization unit A2 belong to the pole position Q1 in the same phase pole, and will pass through the slots of the two slots. After the wires are merged, it is equivalent to a stator slot full of wires; the wires in the slot passing through No. After the wires in the slots of the two slots are merged, it is equivalent to a stator slot full of wires. Therefore, the minimum equalization unit A2 can achieve local circuit equalization.
  • the same phase winding includes multiple branches, and each branch is composed of multiple minimum equalization units A1 and multiple minimum equalization units A2 connected in series and/or in parallel.
  • the winding path of the smallest equalization unit A1 is: Z7(3) ⁇ Z1(2) ⁇ Z7(4) ⁇ Z1(4+1) ⁇ Z7(4+2) ⁇ ... ⁇ Z1(4+n) ⁇ Z8(4+n) ⁇ Z14(4+n-1) ⁇ Z8(4+n-2) ⁇ ... ⁇ Z8( 4+1) ⁇ Z14(4) ⁇ Z8(2) ⁇ Z14(3) ⁇ Z8(1) ⁇ Z14(1).
  • the wires in the slot passed by the winding path of the minimum equalization unit A1 correspond to the positions of all the wires in the two lower poles of a phase pole, thus achieving local circuit equalization.
  • the winding path of the smallest equalization unit A2 is: Z8(3) ⁇ Z2(2) ⁇ Z8(4) ⁇ Z2(4+1) ⁇ Z8(4+2) ⁇ ... ⁇ Z2 (4+n) ⁇ Z7(4+n) ⁇ Z13(4+n-1) ⁇ Z7(4+n-2) ⁇ ... ⁇ Z7(4+1) ⁇ Z13(4) ⁇ Z7(2 ) ⁇ Z13(3) ⁇ Z7(1) ⁇ Z13(1).
  • the wires in the slot passed by the winding path of the minimum equalization unit A2 correspond to the positions of all the wires in the two lower poles of a phase pole, so local circuit equalization is realized.
  • both the smallest equalization unit A1 and the smallest equalization unit A2 are connected in series by wires at different slot positions, and are completely balanced under a pair of phase poles.
  • each branch is composed of 4 minimum equalization units A1 and minimum balance unit A2; when the number of branches per phase of the winding is 2, each branch is composed of 2 The smallest equalization unit A1 and two smallest equalization units A2; when the number of branches per phase of the winding is 4, each branch is composed of one smallest equalization unit A1 and one smallest equalization unit A2; when the number of branches per phase of the winding is 8, each branch consists of one minimum equalization unit A1 or one minimum equalization unit A2.
  • FIG. 8 it is the wiring diagram of the U-phase winding of the 48-slot 3-phase 8-stage stator assembly.
  • the U2 branch, the U1 branch and the U2 branch are all composed of 2 minimum equalization units A1 and 2 minimum balance units A2 and minimum balance windings connected in series.
  • the specific winding path is as follows:
  • the winding path of U1 branch is: Z1(1) ⁇ Z7(3) ⁇ Z1(2) ⁇ Z7(4) ⁇ Z1(4+1) ⁇ Z7(4+2) ⁇ ... ⁇ Z1(4 +n) ⁇ Z8(4+n) ⁇ Z14(4+n-1) ⁇ Z8(4+n-2) ⁇ ... ⁇ Z8(4+1) ⁇ Z14(4) ⁇ Z8(2) ⁇ Z14(3) ⁇ Z8(1) ⁇ Z14(1) ⁇ Z20(3) ⁇ Z14(2) ⁇ Z20(4) ⁇ Z14(4+1) ⁇ Z20(4+2) ⁇ ... ⁇ Z14( 4+n) ⁇ Z19(4+n) ⁇ Z25(4+n-1) ⁇ Z19(4+n-2) ⁇ ... ⁇ Z19(4+1) ⁇ Z25(4) ⁇ Z19(2) ⁇ Z25(3) ⁇ Z19(1) ⁇ Z25(1) ⁇ Z31(3) ⁇ Z25(2) ⁇ Z31(4) ⁇ Z25(4+1) ⁇ Z31(4+2) ⁇ ... ⁇ Z25 (4+n) ⁇ Z32(4+n) ⁇ Z38(4+n-1) ⁇ Z32(4+
  • the winding path of U2 branch is: Z2(1) ⁇ Z8(3) ⁇ Z2(2) ⁇ Z8(4) ⁇ Z2(4+1) ⁇ Z8(4+2) ⁇ ... ⁇ Z2(4 +n) ⁇ Z7(4+n) ⁇ Z13(4+n-1) ⁇ Z7(4+n-2) ⁇ ... ⁇ Z7(4+1) ⁇ Z13(4) ⁇ Z7(2) ⁇ Z13(3) ⁇ Z7(1) ⁇ Z13(1) ⁇ Z19(3) ⁇ Z13(2) ⁇ Z19(4) ⁇ Z13(4+1) ⁇ Z19(4+2) ⁇ ... ⁇ Z13( 4+n) ⁇ Z20(4+n) ⁇ Z26(4+n-1) ⁇ Z20(4+n-2) ⁇ ... ⁇ Z20(4+1) ⁇ Z26(4) ⁇ Z20(2) ⁇ Z26(3) ⁇ Z20(1) ⁇ Z26(1) ⁇ Z32(3) ⁇ Z26(2) ⁇ Z32(4) ⁇ Z26(4+1) ⁇ Z32(4+2), ⁇ ... ⁇ Z26(4+n) ⁇ Z31(4+n) ⁇ Z37(4+n-1) ⁇ Z31(
  • the U1 and U2 branches are composed of two minimum equalization units A1 and two minimum equalization units A2 connected in series, and are fully balanced under 8 poles.
  • FIG. 9 it is the wiring diagram of the U-phase winding of the 48-slot three-phase 8-level stator assembly.
  • the lead wires are drawn out at the welding hairpin end.
  • the U-phase winding is composed of 2 branches, which are divided into U1 branches and the U2 branch, the U1 branch and the U2 branch are composed of two minimum equalization units A1 and two minimum equalization units A2 in series with minimum balance windings.
  • the specific winding path is as follows:
  • the winding path of U1 branch is: Z7(3) ⁇ Z1(2) ⁇ Z7(4) ⁇ Z1(4+1) ⁇ Z7(4+2) ⁇ ... ⁇ Z1(4+n) ⁇ Z8 (4+n) ⁇ Z14(4+n-1) ⁇ Z8(4+n-2) ⁇ ... ⁇ Z8(4+1) ⁇ Z14(4) ⁇ Z8(2) ⁇ Z14(3) ⁇ Z8(1) ⁇ Z14(1) ⁇ Z20(3) ⁇ Z14(2) ⁇ Z20(4) ⁇ Z14(4+1) ⁇ Z20(4+2) ⁇ ... ⁇ Z14(4+n) ⁇ Z19(4+n) ⁇ Z25(4+n-1) ⁇ Z19(4+n-2) ⁇ ... ⁇ Z19(4+1) ⁇ Z25(4) ⁇ Z19(2) ⁇ Z25(3) ⁇ Z19(1) ⁇ Z25(1) ⁇ Z31(3) ⁇ Z25(2) ⁇ Z31(4) ⁇ Z25(4+1) ⁇ Z31(4+2) ⁇ ... ⁇ Z25(4+n) ⁇ Z32(4+n) ⁇ Z38(4+n-1) ⁇ Z32(4+n-2)
  • the winding path of the U2 branch is: Z8(3) ⁇ Z2(2) ⁇ Z8(4) ⁇ Z2(4+1) ⁇ Z8(4+2) ⁇ ... ⁇ Z2(4+n) ⁇ Z7 (4+n) ⁇ Z13(4+n-1) ⁇ Z7(4+n-2) ⁇ ... ⁇ Z7(4+1) ⁇ Z13(4) ⁇ Z7(2) ⁇ Z13(3) ⁇ Z7(1) ⁇ Z13(1) ⁇ Z19(3) ⁇ Z13(2) ⁇ Z19(4) ⁇ Z13(4+1) ⁇ Z19(4+2) ⁇ ... ⁇ Z13(4+n) ⁇ Z20(4+n) ⁇ Z26(4+n-1) ⁇ Z20(4+n-2) ⁇ ... ⁇ Z20(4+1) ⁇ Z26(4) ⁇ Z20(2) ⁇ Z26(3 ) ⁇ Z20(1) ⁇ Z26(1) ⁇ Z32(3) ⁇ Z26(2) ⁇ Z32(4) ⁇ Z26(4+1) ⁇ Z32(4+2) ⁇ ... ⁇ Z26(4+n ) ⁇ Z31(4+n) ⁇ Z37(4+n-1) ⁇ Z31(4
  • the U1 and U2 branches are composed of two minimum equalization units A1 and two minimum equalization units A2 in series, and are fully balanced under 8 poles.
  • V-phase and W-phase windings in the stator winding also adopt the above-mentioned winding connection method, and are symmetrically and evenly distributed on the stator core, which will not be illustrated here again.
  • the number of hairpins corresponding to the layer of wires closest to the outer side of the stator core is about twice the number of stator slots Z; the number of hairpins corresponding to the layer of wires closest to the inner side of the stator core
  • the number of clips is about half of the number Z of the stator slots, and the ends of the U-shaped wire windings on the inner circle side overlap in pairs; the number of hairpins corresponding to the other layers of wires is equal to the number Z of the stator slots.
  • the number of hairpins on the outermost layer of the stator core is about twice the number of stator slots Z; the number of hairpins on the innermost layer of the stator core is about the number of stator slots Half of Z, the number of hairpins in the remaining layers is equal to the number of stator slots Z.
  • all welding points located on the same stator core radius are defined as a welding point array when viewed from the twisted end.
  • the number of solder joint rows along the circumference of the stator core is twice the number Z of the stator slots.
  • the three-phase lead wires or center points are located on the outermost or innermost circle side, and other positions do not need other wires as jumpers.
  • This winding achieves a relatively simple connection method, which reduces manufacturing costs. costs and material costs.
  • n can be an odd number or an even number.
  • the two rectangular conductors of the double conductor layer are arranged along the circumference of the stator core 1 , and the aspect ratio of each rectangular conductor is less than 2.5.
  • the aspect ratio of the single wire layer is less than 3. While ensuring that the rectangular conductor in the independent conductor layer group 5 produces less loss, it reduces the difficulty of the end twisting process of the rectangular conductor, which is beneficial to the U-shaped wire forming.
  • stator slots of the present application may be slots of unequal width, such as trapezoidal slots, or rectangular slots of equal width.

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

Abstract

La présente demande se rapporte au domaine technique des moteurs à fil méplat, et en particulier un ensemble stator et un moteur. 2+n couches de fil sont agencées successivement à l'intérieur de chaque fente de stator le long de la direction radiale d'un noyau de stator, deux couches de fil proches du côté externe du noyau de stator étant toutes deux des couches à fil double, les n couches de fil restantes étant toutes des couches à fil unique, et n étant un nombre impair supérieur ou égal à 1. Selon la présente demande, un mode d'agencement de fil en forme de grille est utilisé, c'est-à-dire que les deux couches de fil proches du côté externe du noyau de stator sont chacune dotées en interne de deux fils, de telle sorte qu'un rapport largeur/étroitesse excessivement haut des fils dans une seule fente est efficacement évité, un rayon de rotation requis pour la formation de fil est réduit, et la hauteur des parties extrémité d'enroulements dans la direction axiale du moteur est réduite. Sur la base du mode d'agencement de fil en forme de grille, un trajet de connexion d'enroulement spécifique est conçu, ce qui permet d'assurer que des branches des enroulements peuvent réaliser un équilibre de circuit, et de garantir des performances optimales du moteur.
PCT/CN2022/139201 2021-12-17 2022-12-15 Ensemble stator et moteur WO2023109886A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202111554823.5 2021-12-17
CN202111554823.5A CN114243961A (zh) 2021-12-17 2021-12-17 一种同槽层多线的定子组件及扁线电机
CN202210079808.8 2022-01-24
CN202210079808.8A CN114498994A (zh) 2022-01-24 2022-01-24 一种具有田字形方导线的定子组件及电机

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WO2023109886A1 true WO2023109886A1 (fr) 2023-06-22

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Citations (6)

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DE316944C (fr) * 1917-05-17 1919-12-08
CN108123564A (zh) * 2016-11-30 2018-06-05 保时捷股份公司 旋转电动机器及用于生产旋转电动机器的特定适配方法
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