WO2019228453A1 - 定子组件及电机 - Google Patents

定子组件及电机 Download PDF

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Publication number
WO2019228453A1
WO2019228453A1 PCT/CN2019/089268 CN2019089268W WO2019228453A1 WO 2019228453 A1 WO2019228453 A1 WO 2019228453A1 CN 2019089268 W CN2019089268 W CN 2019089268W WO 2019228453 A1 WO2019228453 A1 WO 2019228453A1
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WO
WIPO (PCT)
Prior art keywords
slot
layer
winding
span
stator
Prior art date
Application number
PCT/CN2019/089268
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English (en)
French (fr)
Inventor
齐文明
游斌
陈园辉
Original Assignee
比亚迪股份有限公司
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Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Publication of WO2019228453A1 publication Critical patent/WO2019228453A1/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/16Stator cores with slots for windings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/16Stator cores with slots for windings
    • H02K1/165Shape, form or location of the slots
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/04Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/04Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28Layout of windings or of connections between windings

Definitions

  • the present application relates to the technical field of motors, and in particular, to a stator assembly and a motor.
  • the armature connection method of the rotating electrical machine adopts a wave winding method, that is, a wave from the outermost layer to the innermost layer, and then a reverse wave to the outermost layer.
  • This armature connection method and implementation method whether from the analysis of manufacturing process or from the perspective of mass manufacturers, there are too many types of flat wire armatures to be produced, and both ends of the axial line need to be welded, and there are many solder joints.
  • the flat line is offline, it is difficult to accurately fix it, resulting in high production costs and difficult manufacturing processes.
  • the wave winding method has a high voltage difference between different layers in the same slot. When used under high voltage, the layers are easily broken down, resulting in a short circuit and causing the motor to fail.
  • This application is intended to solve at least one of the technical problems in the related technology. For this reason, this application proposes a stator assembly, which has the advantages of simple structure and high reliability.
  • the present application also proposes a motor having a stator assembly as described above.
  • the present application also proposes a stator assembly, which has the advantages of simple structure and high reliability.
  • the stator assembly includes a stator core and a stator winding
  • the stator core has a plurality of stator slots
  • the plurality of stator slots are distributed in a circumferential direction of the stator core, In the circumferential direction of the core, the plurality of stator slots are respectively a first slot, a second slot, ..., an i-th slot, ..., an n-th slot, ..., and each of the stator slots has r slot layers.
  • the directions of the r slot layers from the radially inner side to the outer side of the stator core are layer a, layer b, ..., layer j, ..., layer r, respectively; each of the stator windings
  • the first phase winding includes a first winding portion, a second winding portion, a third winding portion, and a fourth winding portion connected end to end.
  • the i-th slot and the r-th layer are the first windings.
  • the starting end of the winding part, the (i-12) th slot, the r-th layer is the ending end of the first winding part, and the first winding part includes a first span segment and a second span segment From the i-th slot, the r-th layer to the (i-6) -th slot, the r-th layer is the first span, and in the first span, the winding is between the i-th slot and the (i-6)
  • the windings are reciprocated between the slots from the radially outer side to the radially inner side of the stator core; in the second span segment, the windings are in the (i-6) th slot and the (i-12) th slot
  • the winding is reciprocated from the radially inner side to the radially outer side of the stator core, wherein the i-th slot and the r-th layer are connected to the first lead-out wire; in the second winding part, the (i-12) -th slot
  • the r-th layer is the starting end
  • the second winding portion includes a third span, a fourth The third and fourth spans are from the (i-12) th slot r-th layer to the (i-12) th slot a-th layer.
  • the wire reciprocates between the (i-12) th slot and the (i-18) th slot and is wound from the radial outer side to the radial inner side of the stator core; from the (i-12) th slot a layer to The (i-17) slot a layer is the fourth span; from the (i-17) slot a to the (i-23) slot r is the fifth span, Within the fifth span ,
  • the winding reciprocates between the (i-17) th slot and the (i-23) th slot and is wound from the radially inner side to the radially outer side of the stator core; in the third winding portion, the first The (i-23) slot r-layer is the starting end of the third winding portion, the (i-36) slot r-layer is the ending end of the third winding portion, and
  • the winding reciprocates between the (i-23) th slot and the (i-29) th slot and runs from the radial outer side to the radial direction of the stator core.
  • Inner winding; from the (i-23) th slot to the (i-30) th slot the ath layer is the seventh span; from the (i-30) th slot to the (i-30th) slot -36)
  • the r-th layer of the slot is the eighth span, in which the winding reciprocates between the (i-30) th slot and the (i-36) th slot,
  • the stator core is wound from the radially inner side to the radially outer side; in the fourth winding part, the (i-36) th slot, the r-th layer is the starting end of the fourth winding part, and (i-41
  • the outer layer of the slot is the first Termination end of the winding part, the fourth winding part includes a ninth span, a tenth span, and an eleventh span, from the
  • the radial outer side to the radial inner side is wound; from the (i-36) th slot a layer to the (i-41) th slot a layer is the tenth span; from the (i-41) th slot
  • the outer layer from the a layer to the (i-41) th slot is the eleventh span, and in the eleventh step, the winding is between the (i-41) th slot and the (i-47) ) Slots are wound back and forth from the radially inner side to the radially outer side of the stator core, wherein the (i-41) th slot outer layer has a first star point line; each phase of the stator winding is second
  • the road winding includes a fifth winding portion, a sixth winding portion, a seventh winding portion, and an eighth winding portion connected end to end.
  • the (n-47) th slot r-th layer is the first The starting end of the five winding section, the (n-11) th slot, the r-th layer is the ending end of the fifth winding section, and the fifth winding section includes the first The second and the thirteenth jumps, from the (n-47) th slot r to the (n-5) th slot a and the twelfth jump,
  • the winding reciprocates between the (n-47) th slot and the (n-5) th slot and is wound from the radially outer side to the radially inner side of the stator core; from the (n-5 The slot a layer to the (n-11) slot r layer are the thirteenth span, and in the thirteenth span, the winding is between the (n-5) th slot and the (n-5) th slot.
  • the windings are wound back and forth from the radially inner side to the radially outer side of the stator core, wherein the (n-47) th slot of the r-th layer is connected to the second lead-out wire; in the sixth winding portion Within the (n-11) th slot, the r-th layer is the starting end of the sixth winding portion, and the (n-24) th slot, the r-th layer is the end of the sixth winding portion, and the sixth winding portion Including the fourteenth jump, the fifteenth jump and the sixteenth jump, from the (n-11) th slot to the (n-11) th slot and the ath layer is the fourteenth jump Segment, in the fourteenth span segment, the winding reciprocates between the (n-11) th slot and the (n-17) th slot and is wound from a radially outer side to a radially inner side of the stator core Line; a from slot (n-11) The fifteenth jump segment from the (a) th layer to the (n
  • the seventh winding portion includes a seventeenth span, an eighteenth span, and a nineteenth span, from the (n-24) th slot to the (n-24) th slot
  • Layer a is the seventeenth span, in which the winding reciprocates between the (n-24) th slot and the (n-30) th slot and moves from the stator core
  • the winding is from the radially outer side to the radially inner side; from the (n-24) th slot a layer to the (n-29) th slot a layer is the eighteenth span; from the (n-29) slot
  • the a-th layer to the (n-35) -th slot and the r-th layer are the nineteenth step, and in the nineteenth step, the winding is between the (n-29) th slot and
  • the potential vector of the stator slots can be balanced and the slot moment angle can be suppressed.
  • the phase angle of the potential is different, so that the potential balance between the circuit windings can be achieved, the internal circulation of the stator winding can be suppressed, and the effect of low temperature rise can be suppressed.
  • the circulating current while suppressing the circulating current, it can also suppress the harmonic electromagnetic excitation generated by the circulating current. Greatly suppresses vibration and noise during motor operation.
  • n i.
  • the stator winding includes a plurality of conductor segments, and each of the conductor segments includes a bent portion and a first in-slot portion and a second in-slot portion respectively connected to the bent portion, The inner portion of the first slot and the second slot portion of the plurality of conductor segments located adjacent to each other are welded at a welding end.
  • the first-type conductor segment is located in the fourth-span segment, the tenth-span segment, and the eighteenth-span segment.
  • the first slot inner portion is located at the innermost layer of one of the stator slots, and the second slot inner portion of the first type conductor segment is located at the innermost layer of the other stator slot.
  • the second type of conductor segment is located in the first span segment, the second span segment, the third span segment, the fifth span segment, the The sixth step, the eighth step, the ninth step, the eleventh step, the twelfth step, the thirteenth step, The fourteenth crossover segment, the sixteenth crossover segment, the seventeenth crossover segment, the nineteenth crossover segment, the twentieth crossover segment, the twenty-second Spanning segment;
  • the second type of conductor segment includes conductor segments of the same layer and conductor segments of different layers, and the inner portion of the first slot of the conductor segment of the same layer is located at the outermost layer of one of the stator slots, The second slot inner portion is located at the outermost layer of another of the stator slots, or the first slot inner portion of the conductor segment of the same layer is located at the innermost layer of one of the stator slots, and the second The in-slot portion is located in the innermost layer of another of the stator slots, the first in-slot portion of the conductor segment of the different layer is located in the middle
  • the third-type conductor segment is located in the seventh-span segment, the fifteenth-span segment, and the twenty-first-span segment, and the third-type conductor segment
  • the inner portion of the first slot is located at the innermost layer of one of the stator slots
  • the inner portion of the second slot of the third type of conductor segment is located at the innermost layer of the other stator slot.
  • a motor according to an embodiment of the present application includes the stator assembly as described above.
  • the potential vector of the stator slots can be balanced and the potential of the slot moment angle can be suppressed.
  • the phase angle is different, so that the potential balance between circuit windings can be achieved, the internal circulation of the stator windings can be suppressed, and the effect of low temperature rise can be suppressed.
  • the circulating current it can also suppress the harmonic electromagnetic excitation generated by the circulating current. Amplify vibration and noise during motor operation.
  • the stator assembly includes a stator core and a stator winding, the stator core has 48 stator slots, and the 48 stator slots are distributed along the circumferential direction of the stator core, In the circumferential direction of the core, the plurality of stator slots are respectively the first slot, the second slot, ..., and the 48th slot.
  • Each of the stator slots has 6 slot layers, and the 6 slot layers are formed from The directions from the radially inner side to the outer side of the stator core are layer a, layer b, layer c, layer d, layer e, and layer f, respectively; the first path of each phase of the stator winding
  • the winding includes a first winding portion, a second winding portion, a third winding portion, and a fourth winding portion connected end to end.
  • the first slot and the f-th layer are the starting points of the first winding portion.
  • the beginning, the 37th slot and the f-th layer are the ending ends of the first winding portion;
  • the first winding portion includes a first span segment and a second span segment;
  • the f-th layer to the 43rd slot is the first span segment, and in the first span segment, the winding reciprocates between the i-th slot and the 43rd slot and from the radial outer side of the stator core To the radially inner side; in the second span, the winding reciprocates between the 43rd and 37th slots and is wound from the radially inner side to the radially outer side of the stator core, wherein the first The 1st slot f layer has a first lead-out wire; in the second winding portion, the 37th slot f layer is the starting end of the second winding portion, and the 26th slot f layer is the second winding portion
  • the terminating end of the second winding part includes a third span, a fourth span, and a fifth span, and the third jump is from slot 37th layer f
  • the potential vector of the stator slots can be balanced and the slot moment angle can be suppressed.
  • the phase angle of the potential is different, so that the potential balance between the circuit windings can be achieved, the internal circulation of the stator winding can be suppressed, and the effect of low temperature rise can be suppressed.
  • the circulating current while suppressing the circulating current, it can also suppress the harmonic electromagnetic excitation generated by the circulating current. Greatly suppresses vibration and noise during motor operation.
  • FIG. 1 is a winding schematic diagram of a first winding of a stator assembly according to an embodiment of the present application
  • FIG. 2 is a winding schematic diagram of a second winding of a stator assembly according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a stator core of a stator assembly according to an embodiment of the present application.
  • Stator core 10 stator slot 100, slot layer 101,
  • Seventh winding section 330 seventeenth span 331, eighteenth span 332, nineteenth span 333,
  • connection should be understood in a broad sense, unless explicitly stated and limited otherwise.
  • they may be fixed connections or removable.
  • Connection, or integral connection it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.
  • connection or integral connection; it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.
  • z is the number of stator slots 100
  • m is the number of phases
  • 2p is the number of poles.
  • z can be 24, 48, 72, etc.
  • the number of phases m can be three-phase, two-phase, or single-phase
  • the number of pole pairs p can be eight-pole, four-pole, etc., which can be set according to the specific applicable motor.
  • the stator assembly includes a stator core 10 and a stator winding.
  • the stator core 10 has a plurality of stator slots 100, and the plurality of stator slots 100 are distributed along the circumferential direction of the stator core 10.
  • the plurality of stator slots 100 are respectively the first slot, the second slot, ..., the i-th slot, ..., the n-th slot, ..., and each stator slot 100 has r slot layers 101.
  • the r slot layers 101 are the a-th layer, the b-th layer, ..., the j-th layer, ..., and the r-th layer in the directions from the radially inner side to the outer side of the stator core 10, respectively.
  • each phase of the first winding 200 of the stator winding includes a first winding portion 210, a second winding portion 220, a third winding portion 230, and a fourth winding portion 240 connected end to end.
  • the i-th slot and the r-th layer are the starting end of the first winding portion 210
  • the (i-12) slot r-layer is the end of the first winding portion 210
  • the first winding portion 210 includes a first span 211 and the second jump segment 212, from the i-th slot to the (i-6) th slot
  • the r-th layer is the first jump segment 211.
  • the winding is in the i-th slot.
  • the (i-6) th slot is wound back and forth from the radially outer side to the radial inner side of the stator core 10; in the second span segment 212, the winding is wound between the (i-6) th slot and the (i-6) th slot i-12)
  • the slots are wound back and forth from the radially inner side to the radially outer side of the stator core 10, where the r-th layer of the i-th slot is connected to the first lead-out wire 213.
  • the (i-12) th slot and the r-th layer are the starting ends of the second winding portion 220, and the (i-23) slot and the r-th layer are the second winding portion 220.
  • the termination end of the second winding portion 220 includes a third span 221, a fourth span 222, and a fifth span 223, from the (i-12) th slot to the (i-12) th slot
  • the first layer is the third span segment 221.
  • the winding reciprocates between the (i-12) th slot and the (i-18) th slot and runs from the radial direction of the stator core 10.
  • the third winding portion 230 includes a sixth span 231, a seventh span 232, and an eighth span 233, from the (i-23) th slot to the (i-23) th slot
  • the first layer is the sixth jump segment 231.
  • the winding reciprocates between the (i-23) th slot and the (i-29) th slot.
  • the (i-36) th slot of the r-th layer is the starting end of the fourth winding portion 240
  • the (i-41) th slot of the outer layer is the fourth winding portion 240.
  • the terminating end of the fourth winding portion 240 includes a ninth span 241, a tenth span 242, and an eleventh span 243, from the (i-36) th slot to the (i-36) th slot
  • the slot a layer is the ninth span segment 241.
  • the winding reciprocates between the (i-36) th slot and the (i-42) th slot and passes from the diameter of the stator core 10 Winding to the outside to the radially inner side; from the (i-36) slot a layer to the (i-41) slot a layer is the tenth span 242; from the (i-41) slot a layer To the (i-41) th slot, the outer layer is the eleventh jump segment 243. Within the eleventh jump segment 243, the winding is between the (i-41) th slot and the (i-47) th slot. The wire is wound back and forth from the radially inner side to the radially outer side of the stator core 10.
  • the (i-41) th slot outer layer has a first star point line 244.
  • the i-th slot can be used as the starting point.
  • the time is "-"
  • the number of "*” slots is counted in the counterclockwise direction shown in Fig. 3
  • the number of "*" slots is counted in the clockwise direction shown in FIG. .
  • the second winding 300 of each phase of the stator winding includes a fifth winding portion 310, a sixth winding portion 320, a seventh winding portion 330, and an eighth winding portion 340 connected end to end.
  • the (n-47) th slot r-th layer is the starting end of the fifth winding portion 310
  • the (n-11) slot r-th layer is the end of the fifth winding portion 310
  • the fifth winding portion 310 includes the first
  • the twelfth jump segment 311 and the thirteenth jump segment 312 are the twelfth jump segment 311 from the (n-47) th slot r to the (n-5) th slot a.
  • the winding reciprocates between the (n-47) th slot and the (n-5) th slot and is wound from the radially outer side to the radially inner side of the stator core 10; from the (n-5 ) Slot a to (n-11) th slot r is the thirteenth span 312. In the thirteenth span 312, the winding is between the (n-5) th slot and the (n- 11) The slots are reciprocated and wound from the radially inner side to the radially outer side of the stator core 10, where the (n-47) th slot of the r-th layer is connected to the second lead-out wire 313.
  • the (n-11) th slot and the r-th layer are the starting ends of the sixth winding section 320
  • the (n-24) slot and the r-th layer are the sixth winding section 320.
  • the terminating end of the sixth winding section 320 includes a fourteenth span 321, a fifteenth span 322, and a sixteenth span 323, from the (n-11) th slot from the rth layer to the (n- 11)
  • the first layer of the slot is the fourteenth span segment 321.
  • the winding reciprocates between the (n-11) th slot and the (n-17) th slot and moves from the stator iron.
  • the winding from the radially outer side to the radially inner side of the core 10; from the (n-11) th slot a layer to the (n-18) th slot a layer is a fifteenth jump segment 322; from (n-18 ) Slot a to th (n-24) slot r-th layer is the sixteenth jump segment 323.
  • the winding is between the (n-18) th slot and the (n- 24)
  • the slots are reciprocated and wound from the radially inner side to the radially outer side of the stator core 10.
  • the (n-24) th slot and the r-th layer are the starting ends of the seventh winding portion 330
  • the (n-35) th slot and the r-th layer are the seventh winding portion 330
  • the terminating end of the seventh winding section 330 includes a seventeenth span 331, an eighteenth span 332, and a nineteenth span 333, from the (n-24) th slot from the rth layer to the (n- 24)
  • the first layer of the slot is the seventeenth span segment 331.
  • the winding reciprocates between the (n-24) th slot and the (n-30) th slot and moves from the stator iron.
  • the slots are reciprocated and wound from the radially inner side to the radially outer side of the stator core 10.
  • the eighth winding section 340 includes the twentieth span 341, the twenty-first span 342, and the twenty-second span 343, from the (n-35) th slot from the rth layer to the ( (n-35) slot a is the twentieth span 341.
  • the winding reciprocates between the (n-35) th slot and the (n-41) th slot and starts from
  • the stator core 10 is wound from the radially outer side to the radially inner side; from the (n-35) th slot a layer to the (n-42) th slot a layer is the twenty-first span segment 342; from the ( (n-42) slot a to (n-42) slot.
  • the outer layer is the 22nd span section 343.
  • the winding is in the (n-42) slot. It is reciprocated with the n-th slot and is wound from the radially inner side to the radially outer side of the stator core 10.
  • the (i-42) th slot outer layer has a second star point line 344.
  • the nth slot can be used as the starting point.
  • the number of "n- ⁇ + *” slots needs to be counted, where n and *
  • the time is "-"
  • the number of "*” slots is counted in the counterclockwise direction shown in Fig. 3
  • the number of "*" slots is counted in the clockwise direction shown in FIG. .
  • the potential vector of the stator slot 100 can be balanced and the slot moment angle can be suppressed.
  • the phase angle difference of the potentials can achieve the equalization of the potentials between the circuit windings, the internal circulation of the stator windings can be suppressed, and the effect of low temperature rise can be suppressed.
  • the circulating currents it can also suppress the harmonic electromagnetic excitation generated by the circulating currents. Can greatly suppress the vibration and noise during motor operation.
  • n i. Therefore, the setting of the first winding 200 and the second winding 300 of each phase can be made more compact and reasonable, the winding structure of the stator winding can be optimized, and the working performance of the stator winding can be improved.
  • the stator winding includes a plurality of conductor segments, and each conductor segment includes a bent portion and a first in-slot portion and a second in-slot portion respectively connected to the bent portion.
  • the first slot inner portion and the second slot inner portion of the adjacent layers are welded at the welding ends.
  • the structure of the conductor segments is simple, the forming process is easy to implement, the required equipment is small, and it is easy to mass produce.
  • the welding end can be located on the same side of the stator core 10, which is convenient for welding.
  • the stator winding adopts the plug-in molding method.
  • the arrangement is simple and convenient to implement. There is only one end with a welding point.
  • the welding process is simple and it is convenient for the user to adjust the line.
  • due to the different wave winding methods adjacent slots in the same slot The small voltage difference between the layers of flat wires can effectively reduce the risk of motor insulation breakdown, thereby improving the reliability of the motor.
  • the conductor segment includes a first type conductor segment, a second type conductor segment, and a third type conductor segment, and the first slot inner portion of the first type conductor segment
  • the pitch between the inner slot and the second slot is (y-1) stator slots 100
  • the pitch between the first slot and the second slot of the second type conductor segment is y stator slots 100.
  • y can be 6.
  • winding can be realized through the first type of conductor segments, the second type of conductor segments, and the third type of conductor segments.
  • the types of conductor segments are small, the forming process is convenient, the required equipment is small, and it is easy to mass produce.
  • the cross-winding is changed by changing the inner coil span to avoid current circulation and solve the problems of voltage imbalance and power imbalance between the two circuits.
  • the potential vector of the phase separation slot is balanced by the short and long distance changes, the potential phase angle difference of the slot moment angle is suppressed, and the potential balance between the circuits is finally achieved.
  • the internal circulation of the winding can be suppressed. Low temperature rise effect.
  • the first type of conductor segment is located at the fourth span 222, the tenth span 242, and the eighteenth span 332, the first type of conductor segment
  • the inner part of the first slot of the first slot is located at the innermost layer of one stator slot 100
  • the inner part of the second slot of the first type of conductor segment is located at the innermost layer of the other stator slot 100. Therefore, cross-mixing is performed by changing the coil span to avoid current circulation and solve the problems of voltage imbalance and power imbalance between the two circuits.
  • the second type of conductor segment is located at the first span segment 211, the second span segment 212, the third span segment 221, and the fifth span segment 223.
  • second type conductor section Including conductor segments of the same layer and conductor segments of different layers, the first slot inner portion of the same layer conductor portion is located at the outermost layer of one stator slot 100, and the second slot inner portion is located at the outermost layer of the other stator slot 100, Or the first slot portion of the conductor segment of the same layer is located at the innermost layer of one stator slot 100, the second slot portion is located at the innermost layer of the other stator slot 100, and the first slot portion of conductor segments of different layers is
  • the third type of conductor segment is located at the seventh span 232, the fifteenth span 322, and the twenty-first span 342, the third category
  • the first slot portion of the conductor segment is located at the innermost layer of one stator slot 100
  • the second slot portion of the third type conductor segment is located at the innermost layer of the other stator slot 100. Therefore, the cross-winding is changed by changing the coil span to avoid current circulation and solve the problems of voltage imbalance and power imbalance between the two circuits.
  • the motor according to the embodiment of the present application includes the stator assembly as described above.
  • the potential vector of the stator slot 100 can be balanced and the slot moment angle can be suppressed.
  • the phase angle of the potential is different, so that the potential balance between the circuit windings can be achieved, the internal circulation of the stator winding can be suppressed, and the effect of low temperature rise can be suppressed.
  • the circulating current while suppressing the circulating current, it can also suppress the harmonic electromagnetic excitation generated by the circulating current. Greatly suppresses vibration and noise during motor operation.
  • z is the number of stator slots 100100
  • m is the number of phases
  • 2p is the number of poles.
  • z can be 24, 48, 72, etc.
  • the number of phases m can be three-phase, two-phase, or single-phase
  • the number of pole pairs p can be eight-pole, four-pole, etc., which can be set according to the specific applicable motor.
  • the stator assembly includes a stator core 10 and a stator winding.
  • the stator core 10 has 48 stator slots 100, and the 48 stator slots 100 are distributed along the circumferential direction of the stator core 10.
  • the plurality of stator slots 100 are respectively the first slot, the second slot, ..., and the 48th slot.
  • Each of the stator slots 100 has six slot layers 101, and the six slot layers 101 are from the stator.
  • the directions from the radially inner side to the outer side of the iron core 10 are layer a, layer b, layer c, layer d, layer e, and layer f, respectively.
  • the first winding 200 of each phase of the stator winding includes The first winding part 210, the second winding part 220, the third winding part 230, and the fourth winding part 240 connected end to end; in the first winding part 210, the first slot f layer is the starting end of the first winding part 210 The 37th slot and the fth layer are the terminating ends of the first winding portion 210; the first winding portion 210 includes a first spanning section 211 and a second spanning section 212; The layer is the first span segment 211, and within the first span segment 211, the winding reciprocates between the i-th slot and the 43-th slot and is wound from the radially outer side to the radially inner side of the stator core 10; In the second spanning section 212, the winding reciprocates between the 43rd slot and the 37th slot and is wound from the radial inner side to the radial outer side of the stator core 10, wherein the first slot f layer has a first lead-out wire
  • the 37th slot and the f-th layer are the starting end of the second winding portion 220
  • the 26th slot and the f-th layer are the end of the second winding portion 220
  • the second winding portion 220 includes the third jump segment 221, the fourth jump segment 222, and the fifth jump segment 223.
  • the winding reciprocates between the 37th slot and the 31st slot and is wound from the radially outer side to the radially inner side of the stator core 10; from the 37th slot a layer to the 32nd slot a layer is the first Four-span section 222; from slot 32, layer a to slot 26, layer f is fifth step 223. In the fifth step 223, the winding reciprocates between slot 32 and slot 26.
  • the stator core 10 is wound from the radially inner side to the radially outer side.
  • the 26th slot and the f-th layer are the starting end of the third winding portion 230, and the 13th slot and the f-th layer are the end of the third winding portion 230;
  • the third winding portion 230 includes the sixth jump segment 231, the seventh jump segment 232, and the eighth jump segment 233; from the 26th slot, the f-th layer to the 26th slot, the a-th layer is the sixth jump segment 231, in the sixth jump
  • the winding is reciprocated between the 26th slot and the 20th slot and is wound from the radial outer side to the radial inner side of the stator core 10; from the 26th slot a layer to the 19th slot a layer is the first Seven-span segment 232; from slot 19th layer a to slot 13th layer f is eighth-span segment 233.
  • the winding reciprocates between slots 19 and 13
  • the stator core 10 is wound from the radially inner side
  • the fourth winding portion 240 includes the ninth step 241, the tenth step 242, and the eleventh step 243; from the 13th slot to the 13th layer a to the 13th slot a layer is the ninth step 241, in the ninth step In the jump segment 241, the winding reciprocates between the 13th slot and the 7th slot and is wound from the radial outer side to the radial inner side of the stator core 10; from the 13th slot a layer to the 8th slot a layer is The tenth jump segment 242; from the eighth slot a layer to the eighth slot outer layer is the eleventh jump segment 243, in the eleventh jump segment 243, the winding is in the eighth slot and the second slot It is reciprocated and wound from the radially inner side to the radially outer side of the stator core
  • the eighth slot outer layer has a first star point line 244.
  • each phase of the second winding 300 of the stator winding includes a fifth winding portion 310, a sixth winding portion 320, a seventh winding portion 330, and an eighth winding portion 340 connected end to end;
  • the second slot and the f-th layer are the starting end of the fifth winding portion 310
  • the 38th slot and the f-th layer are the ending end of the fifth winding portion 310
  • the fifth winding portion 310 includes the twelfth span segment 311 and the first The thirteenth jump segment 312; from the second slot, the f-th layer to the 44th slot, the a layer is the twelfth jump segment 311, and in the twelfth jump segment 311, the winding is in the second slot and the 44th slot Winding back and forth from the radially outer side to the radially inner side of the stator core 10; from the 44th slot, the a-th layer to the 38th slot, the f-th layer is the thirteenth span segment
  • the 38th slot and the f-th layer are the starting ends of the sixth winding section 320, and the 25th slot and the f-th layer are the ending ends of the sixth winding section 320;
  • the sixth winding section 320 includes fourteenth jump segment 321, fifteenth jump segment 322, and sixteenth jump segment 323; from slot 38th layer f to slot 38th layer a is the fourteenth jump segment 321, in In the fourteenth span segment 321, the winding reciprocates between the 38th and 32nd slots and is wound from the radially outer side to the radially inner side of the stator core 10; from the 38th slot to the 31st slot
  • the first layer is the fifteenth jump section 322; from the 31st slot a to the 25th slot the fth layer is the sixteenth jump section 323, in the sixteenth jump section 323, the winding is at the 31st
  • the slot and the 25th slot are reciprocated and wound from the radially inner side to the radially outer side of the stat
  • the seventh winding portion 330 includes seventeenth jump segment 331, eighteenth jump segment 332, and nineteenth jump segment 333; from slot 25th layer f to slot 25th layer a is the seventeenth jump segment 331, in In the seventeenth span section 331, the winding reciprocates between the 25th slot and the 19th slot and is wound from the radial outer side to the radial inner side of the stator core 10; from the 25th slot to the 20th slot
  • the first layer is the eighteenth step 332; from the 20th slot to the 14th slot, the fth layer is the nineteenth step 333.
  • the winding is at the 20th The slot and the 14th slot are reciprocated and wound from the radially inner side to the radially outer side of the stator core 10.
  • the eighth winding portion 340 the 14th slot and the fth layer are the starting end of the eighth winding portion 340, and the seventh slot outer layer is the ending end of the eighth winding portion 340; the eighth winding portion 340 includes the twentieth span 341, the twenty-first span 342, and the twenty-second span 343; from slot 14th layer f to slot 14th layer a is the twentieth span 341 In the twentieth span segment 341, the winding reciprocates between the 14th slot and the 8th slot and is wound from the radial outer side to the radial inner side of the stator core 10; from the 14th slot, the a layer to the first The seventh layer a in slot 7 is the twenty-first span segment 342; from the seventh layer a to the seventh slot in the outer layer is the twenty-second span segment 343, within the twenty-second span segment 343, The winding is reciprocated between the seventh slot and the first slot and is wound from the radially inner side to the radially outer side of the stator core 10.
  • the seventh slot outer layer has a second star point line 344.
  • the potential vector of the stator slot 100 can be balanced and the slot moment angle can be suppressed.
  • the phase angle difference of the potentials can achieve the equalization of the potentials between the circuit windings, the internal circulation of the stator windings can be suppressed, and the effect of low temperature rise can be suppressed.
  • the circulating currents it can also suppress the harmonic electromagnetic excitation generated by the circulating currents. Can greatly suppress the vibration and noise during motor operation.
  • stator winding adopts the plug-in molding method, the arrangement is simple and convenient to implement, and only one end has a welding point, the welding process is simple, and it is convenient for the user to adjust the circuit.
  • the wave winding method is different, the phase in the same slot is the same. The voltage difference between the flat wires between adjacent slots is small, which can effectively reduce the risk of motor insulation breakdown, thereby improving the reliability of the motor.

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

Abstract

一种定子组件及电机。定子组件包括定子铁芯(10)和定子绕组,定子铁芯(10)具有多个定子槽(100),多个定子槽(100)沿定子铁芯的周向方向分布,每个定子槽(100)中均具有r个槽层(101)。定子绕组的每相第一路绕线(200)包括首尾连接的第一绕组部分(210)、第二绕组部分(220)、第三绕组部分(230)和第四绕组部分(240)。

Description

定子组件及电机
相关申请的交叉引用
本申请要求比亚迪股份有限公司于2018年05月31日提交的、发明名称为“定子组件及电机”的、中国专利申请号“201810550256.8”的优先权。
技术领域
本申请涉及电机技术领域,具体而言,尤其是涉及一种定子组件及电机。
背景技术
相关技术中,旋转电机的电枢连接方式采用波绕方式,即从最外层波绕至最内层,再反向波绕至最外层。这种电枢连接方式及实现方式,不论是从制作工艺方面分析,还是从批量生产商方面分析,需要制作的扁线电枢种类过多,且轴向两端均需要焊接,焊点多,此外,其扁线下线后,难以准确固定,造成生产成本高,制作工艺难度大。从电气连接方面分析,该波绕方式,在同一槽内的不同层数之间的电压差较高,在高压下运用时,层间容易击穿,导致短路,使电机失效。
发明内容
本申请旨在至少在一定程度上解决相关技术中的技术问题之一。为此,本申请提出一种定子组件,该定子组件具有结构简单、可靠性高的优点。
本申请还提出一种电机,所述电机具有如上所述的定子组件。
本申请还提出一种定子组件,所述定子组件具有结构简单、可靠性高的优点。
根据本申请实施例的定子组件,所述定子组件适用于z槽2p极m相的电机中,其每极每相槽数为q=z/m/(2p),并联支路数为a,a≤q,所述定子组件包括定子铁芯和定子绕组,所述定子铁芯具有多个定子槽,多个所述定子槽沿所述定子铁芯的周向方向分布,在所述定子铁芯的周向方向上,多个所述定子槽分别为第1槽、第2槽、…、第i槽、…、第n槽、…,每个所述定子槽中均具有r个槽层,r个所述槽层从所述定子铁芯的径向内侧到外侧的方向上分别为第a层、第b层、…、第j层、…、第r层;所述定子绕组的每相第一路绕线包括首尾连接的第一绕组部分、第二绕组部分、第三绕组部分和第四绕组部分,在所述第一绕组部分内,第i槽第r层为所述第一绕组部分的起始端,第(i-12)槽第r层为所述第一绕组部分的终止端,所述第一绕组部分包括第一跨跃段和第二跨跃段,从第i槽第r层到第(i-6)槽第r层为所述第一跨跃段,在所述第一跨跃段内,绕线在第i槽和 第(i-6)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;在所述第二跨跃段内,绕线在第(i-6)槽和第(i-12)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线,其中第i槽第r层连接第一引出线;在所述第二绕组部分内,第(i-12)槽第r层为所述第二绕组部分的起始端,第(i-23)槽第r层为所述第二绕组部分的终止端,所述第二绕组部分包括第三跨跃段、第四跨跃段和第五跨跃段,从第(i-12)槽第r层到第(i-12)槽第a层为第三跨跃段,在所述第三跨跃段内,绕线在第(i-12)槽和第(i-18)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(i-12)槽第a层到第(i-17)槽第a层为所述第四跨跃段;从第(i-17)槽第a层到第(i-23)槽第r层为所述第五跨跃段,在所述第五跨跃段内,绕线在第(i-17)槽和第(i-23)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;在所述第三绕组部分内,第(i-23)槽第r层为所述第三绕组部分的起始端,第(i-36)槽第r层为所述第三绕组部分的终止端,所述第三绕组部分包括第六跨跃段、第七跨跃段和第八跨跃段,从第(i-23)槽第r层到第(i-23)槽第a层为第六跨跃段,在所述第六跨跃段内,在所述第六跨跃段内,绕线在第(i-23)槽和第(i-29)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(i-23)槽第a层到第(i-30)槽第a层为所述第七跨跃段;从第(i-30)槽第a层到第(i-36)槽第r层为所述第八跨跃段,在所述第八跨跃段内,绕线在第(i-30)槽和第(i-36)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;在所述第四绕组部分内,第(i-36)槽第r层为所述第四绕组部分的起始端,第(i-41)槽次外层为所述第四绕组部分的终止端,所述第四绕组部分包括第九跨跃段、第十跨跃段和第十一跨跃段,从第(i-36)槽第r层到第(i-36)槽第a层为第九跨跃段,在所述第九跨跃段内,绕线在第(i-36)槽和第(i-42)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(i-36)槽第a层到第(i-41)槽第a层为所述第十跨跃段;从第(i-41)槽第a层到第(i-41)槽次外层为所述第十一跨跃段,在所述第十一跨跃段内,绕线在第(i-41)槽和第(i-47)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线,其中第(i-41)槽次外层具有第一星点线;所述定子绕组的每相第二路绕线包括首尾连接的第五绕组部分、第六绕组部分、第七绕组部分和第八绕组部分,在所述第五绕组部分内,第(n-47)槽第r层为所述第五绕组部分的起始端,第(n-11)槽第r层为所述第五绕组部分的终止端,所述第五绕组部分包括第十二跨跃段和第十三跨跃段,从第(n-47)槽第r层到第(n-5)槽第a层为所述第十二跨跃段,在所述第十二跨跃段内,绕线在第(n-47)槽和第(n-5)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(n-5)槽第a层到第(n-11)槽第r层为所述第十三跨跃段,在所述第十三跨跃段内,绕线在第(n-5)槽和第(n-11)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线,其中第(n-47)槽第r层连接第二引出线; 在所述第六绕组部分内,第(n-11)槽第r层为所述第六绕组部分的起始端,第(n-24)槽第r层为所述第六绕组部分的终止端,所述第六绕组部分包括第十四跨跃段、第十五跨跃段和第十六跨跃段,从第(n-11)槽第r层到第(n-11)槽第a层为第十四跨跃段,在所述第十四跨跃段内,绕线在第(n-11)槽和第(n-17)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(n-11)槽第a层到第(n-18)槽第a层为所述第十五跨跃段;从第(n-18)槽第a层到第(n-24)槽第r层为第十六跨跃段,在所述第十六跨跃段内,绕线在第(n-18)槽和第(n-24)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;在所述第七绕组部分内,第(n-24)槽第r层为所述第七绕组部分的起始端,第(n-35)槽第r层为所述第七绕组部分的终止端,所述第七绕组部分包括第十七跨跃段、第十八跨跃段和第十九跨跃段,从第(n-24)槽第r层到第(n-24)槽第a层为第十七跨跃段,在所述第十七跨跃段内,绕线在第(n-24)槽和第(n-30)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(n-24)槽第a层到第(n-29)槽第a层为所述第十八跨跃段;从第(n-29)槽第a层到第(n-35)槽第r层为所述第十九跨跃段,在所述第十九跨跃段内,绕线在第(n-29)槽和第(n-35)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;在所述第八绕组部分内,第(n-35)槽第r层为所述第八绕组部分的起始端,第(n-42)槽次外层为所述第八绕组部分的终止端,所述第八绕组部分包括第二十跨跃段、第二十一跨跃段和第二十二跨跃段,从第(n-35)槽第r层到第(n-35)槽第a层为第二十跨跃段,在所述第二十跨跃段内,绕线在第(n-35)槽和第(n-41)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(n-35)槽第a层到第(n-42)槽第a层为所述第二十一跨跃段;从第(n-42)槽第a层到第(n-42)槽次外层为所述第二十二跨跃段,在所述第二十二跨跃段内,绕线在第(n-42)槽和第n槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线。
根据本申请实施例的定子组件,在绕线过程中,通过将多个跨跃段的节距设置成与其他跨跃段的节距不同,可以平衡定子槽的电位矢量,抑制槽矩角的电位相角差,从而可以实现电路绕线之间电位的均衡,可以抑制定子绕组内部环流,具有低温升效果,而且,在抑制环流的同时,也可抑制环流产生的谐波电磁激励,从而可以大幅度地抑制电机工作时的振动和噪声。
根据本申请的一些实施例,n=i。
根据本申请的一些实施例,所述定子绕组包括多个导体段,每个所述导体段包括弯折部和分别连接至所述弯折部的第一槽内部分和第二槽内部分,所述多个导体段的位于相邻层的所述第一槽内部分和所述第二槽内部分在焊接端焊接连接。
在本申请的一些实施例中,所述导体段包括第一类导体段、第二类导体段和第三类导体 段,所述第一类导体段的所述第一槽内部分和所述第二槽内部分之间的节距为(y-1)个所述定子槽,所述第二类导体段的所述第一槽内部分和所述第二槽内部分之间的节距为y个所述定子槽,所述第三类导体段的所述第一槽内部分和所述第二槽内部分之间的节距为(y+1)个所述定子槽,其中y为整数且y=z/2p。
在本申请的一些示例中,所述第一类导体段位于所述第四跨跃段、所述第十跨跃段和所述第十八跨跃段,所述第一类导体段的所述第一槽内部分位于一个所述定子槽的最内层,所述第一类导体段的所述第二槽内部分位于另一个所述定子槽的最内层。
在本申请的一些示例中,所述第二类导体段位于所述第一跨跃段、所述第二跨跃段、所述第三跨跃段、所述第五跨跃段、所述第六跨跃段、所述第八跨跃段、所述第九跨跃段、所述第十一跨跃段、所述第十二跨跃段、所述第十三跨跃段、所述第十四跨跃段、所述第十六跨跃段、所述第十七跨跃段、所述第十九跨跃段、所述第二十跨跃段、所述第二十二跨跃段;所述第二类导体段包括同层的导体段和异层的导体段,所述同层的导体段的所述第一槽内部分位于一个所述定子槽的最外层,所述第二槽内部分位于另一个所述定子槽的最外层,或者所述同层的导体段的所述第一槽内部分位于一个所述定子槽的最内层,所述第二槽内部分位于另一个所述定子槽的最内层,所述异层的导体段的所述第一槽内部分位于一个所述定子槽的中间槽层,所述第二槽内部分位于另一个所述定子槽的中间槽层,且异层跨跃。
在本申请的一些示例中,所述第三类导体段位于所述第七跨跃段、所述第十五跨跃段及所述第二十一跨跃段,所述第三类导体段的所述第一槽内部分位于一个所述定子槽的最内层,所述第三类导体段的所述第二槽内部分位于另一个所述定子槽的最内层。
根据本申请实施例的电机,包括如上所述的定子组件。
根据本申请实施例的电机,在绕线过程中,通过将多个跨跃段的节距设置成与其他跨跃段的节距不同,可以平衡定子槽的电位矢量,抑制槽矩角的电位相角差,从而可以实现电路绕线之间电位的均衡,可以抑制定子绕组内部环流,具有低温升效果,而且,在抑制环流的同时,也可抑制环流产生的谐波电磁激励,从而可以大幅度地抑制电机工作时的振动和噪声。
根据本申请实施例的定子组件,所述定子组件适用于48槽2p极m相的电机中,其每极每相槽数为q=z/m/(2p),并联支路数为a,a≤q,所述定子组件包括定子铁芯和定子绕组,所述定子铁芯具有48个定子槽,48个所述定子槽沿所述定子铁芯的周向方向分布,在所述定子铁芯的周向方向上,多个所述定子槽分别为第1槽、第2槽、…、第48槽,每个所述定子槽中均具有6个槽层,6个所述槽层从所述定子铁芯的径向内侧到外侧的方向上分别为第a层、第b层、第c层、第d层、第e层、第f层;所述定子绕组的每相第一路绕线包 括首尾连接的第一绕组部分、第二绕组部分、第三绕组部分和第四绕组部分;在所述第一绕组部分内,第1槽第f层为所述第一绕组部分的起始端,第37槽第f层为所述第一绕组部分的终止端;所述第一绕组部分包括第一跨跃段和第二跨跃段;从第1槽第f层到第43槽第f层为所述第一跨跃段,在所述第一跨跃段内,绕线在第i槽和第43槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;在所述第二跨跃段内,绕线在第43槽和第37槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线,其中第1槽第f层具有第一引出线;在所述第二绕组部分内,第37槽第f层为所述第二绕组部分的起始端,第26槽第f层为所述第二绕组部分的终止端,所述第二绕组部分包括第三跨跃段、第四跨跃段和第五跨跃段,从第37槽第f层到第37槽第a层为所述第三跨跃段,在所述第三跨跃段内,绕线在第37槽和第31槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第37槽第a层到第32槽第a层为所述第四跨跃段;从第32槽第a层到第26槽第f层为所述第五跨跃段,在所述第五跨跃段内,绕线在第32槽和第26槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;在所述第三绕组部分内,第26槽第f层为所述第三绕组部分的起始端,第13槽第f层为所述第三绕组部分的终止端;所述第三绕组部分包括第六跨跃段、第七跨跃段和第八跨跃段;从第26槽第f层到第26槽第a层为所述第六跨跃段,在所述第六跨跃段内,绕线在第26槽和第20槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第26槽第a层到第19槽第a层为所述第七跨跃段;从第19槽第a层到第13槽第f层为所述第八跨跃段,在所述第八跨跃段内,绕线在第19槽和第13槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;在所述第四绕组部分内,第13槽第f层为所述第四绕组部分的起始端,第8槽次外层为所述第四绕组部分的终止端;所述第四绕组部分包括第九跨跃段、第十跨跃段和第十一跨跃段;从第13槽第f层到第13槽第a层为所述第九跨跃段,在所述第九跨跃段内,绕线在第13槽和第7槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第13槽第a层到第8槽第a层为所述第十跨跃段;从第8槽第a层到第8槽次外层为所述第十一跨跃段,在所述第十一跨跃段内,绕线在第8槽和第2槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;其中第8槽次外层具有第一星点线;所述定子绕组的每相第二路绕线包括首尾连接的第五绕组部分、第六绕组部分、第七绕组部分和第八绕组部分;在所述第五绕组部分内,第2槽第f层为所述第五绕组部分的起始端,第38槽第f层为所述第五绕组部分的终止端;所述第五绕组部分包括所述第十二跨跃段和所述第十三跨跃段;从第2槽第f层到第44槽第a层为所述第十二跨跃段,在所述第十二跨跃段内,绕线在第2槽和第44槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第44槽第a层到第38槽第f层为所述第十三跨跃段,在所述第十三跨跃段内,绕线在第44槽和第38槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线, 其中第2槽第f层具有第二引出线;在所述第六绕组部分内,第38槽第f层为所述第六绕组部分的起始端,第25槽第f层为所述第六绕组部分的终止端;所述第六绕组部分包括第十四跨跃段、第十五跨跃段和第十六跨跃段;从第38槽第f层到第38槽第a层为所述第十四跨跃段,在所述第十四跨跃段内,绕线在第38槽和第32槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第38槽第a层到第31槽第a层为所述第十五跨跃段;从第31槽第a层到第25槽第f层为所述第十六跨跃段,在所述第十六跨跃段内,绕线在第31槽和第25槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;在所述第七绕组部分内,第25槽第f层为所述第七绕组部分的起始端,第14槽第f层为所述第七绕组部分的终止端;所述第七绕组部分包括第十七跨跃段、第十八跨跃段和第十九跨跃段;从第25槽第f层到第25槽第a层为所述第十七跨跃段,在所述第十七跨跃段内,绕线在第25槽和第19槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第25槽第a层到第20槽第a层为所述第十八跨跃段;从第20槽第a层到第14槽第f层为所述第十九跨跃段,在所述第十九跨跃段内,绕线在第20槽和第14槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;在所述第八绕组部分内,第14槽第f层为所述第八绕组部分的起始端,第7槽次外层为所述第八绕组部分的终止端;所述第八绕组部分包括第二十跨跃段、第二十一跨跃段和第二十二跨跃段;从第14槽第f层到第14槽第a层为所述第二十跨跃段,在所述第二十跨跃段内,绕线在第14槽和第8槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第14槽第a层到第7槽第a层为所述第二十一跨跃段;从第7槽第a层到第7槽次外层为所述第二十二跨跃段,在所述第二十二跨跃段内,绕线在第7槽和第1槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;其中第7槽次外层具有第二星点线。
根据本申请实施例的定子组件,在绕线过程中,通过将多个跨跃段的节距设置成与其他跨跃段的节距不同,可以平衡定子槽的电位矢量,抑制槽矩角的电位相角差,从而可以实现电路绕线之间电位的均衡,可以抑制定子绕组内部环流,具有低温升效果,而且,在抑制环流的同时,也可抑制环流产生的谐波电磁激励,从而可以大幅度地抑制电机工作时的振动和噪声。
附图说明
图1是根据本申请实施例的定子组件的第一路绕线的绕线示意图;
图2是根据本申请实施例的定子组件的第二路绕线的绕线示意图;
图3是根据本申请实施例的定子组件的定子铁芯的结构示意图。
附图标记:
定子铁芯10,定子槽100,槽层101,
第一路绕线200,
第一绕组部分210,第一跨跃段211,第二跨跃段212,第一引出线213,
第二绕组部分220,第三跨跃段221,第四跨跃段222,第五跨跃段223,
第三绕组部分230,第六跨跃段231,第七跨跃段232,第八跨跃段233,
第四绕组部分240,第九跨跃段241,第十跨跃段242,第十一跨跃段243,第一星点线244,
第二路绕线300,
第五绕组部分310,第十二跨跃段311,第十三跨跃段312,第二引出线313,
第六绕组部分320,第十四跨跃段321,第十五跨跃段322,第十六跨跃段323,
第七绕组部分330,第十七跨跃段331,第十八跨跃段332,第十九跨跃段333,
第八绕组部分340,第二十跨跃段341,第二十一跨跃段342,第二十二跨跃段343,第二星点线344。
具体实施方式
下面详细描述本申请的实施例,所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的,旨在用于解释本申请,而不能理解为对本申请的限制。
在本申请的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。此外,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中,除非另有说明,“多个”的含义是两个或两个以上。
在本申请的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本申请中的具体含义。
根据本申请实施例的定子组件,定子组件适用于z槽2p极m相的电机中,其每极每相槽数为q=z/m/(2p),并联支路数为a,a≤q。这里需要解释的是,z为定子槽100的数目, m为相数,2p为极数。例如,z可以为24、48、72等,相数m可以是三相、两相或单相,极对数p可以是8极、4极等,可以根据具体适用的电机进行设定。
如图1-图3所示,定子组件包括定子铁芯10和定子绕组,定子铁芯10具有多个定子槽100,多个定子槽100沿定子铁芯10的周向方向分布,在定子铁芯10的周向方向上,多个定子槽100分别为第1槽、第2槽、…、第i槽、…、第n槽、…,每个定子槽100中均具有r个槽层101,r个槽层101从定子铁芯10的径向内侧到外侧的方向上分别为第a层、第b层、…、第j层、…、第r层。
如图1所示,定子绕组的每相第一路绕线200包括首尾连接的第一绕组部分210、第二绕组部分220、第三绕组部分230和第四绕组部分240,在第一绕组部分210内,第i槽第r层为第一绕组部分210的起始端,第(i-12)槽第r层为第一绕组部分210的终止端,第一绕组部分210包括第一跨跃段211和第二跨跃段212,从第i槽第r层到第(i-6)槽第r层为第一跨跃段211,在第一跨跃段211内,绕线在第i槽和第(i-6)槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;在第二跨跃段212内,绕线在第(i-6)槽和第(i-12)槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线,其中第i槽第r层连接第一引出线213。
如图1所示,在第二绕组部分220内,第(i-12)槽第r层为第二绕组部分220的起始端,第(i-23)槽第r层为第二绕组部分220的终止端,第二绕组部分220包括第三跨跃段221、第四跨跃段222和第五跨跃段223,从第(i-12)槽第r层到第(i-12)槽第a层为第三跨跃段221,在第三跨跃段221内,绕线在第(i-12)槽和第(i-18)槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第(i-12)槽第a层到第(i-17)槽第a层为第四跨跃段222;从第(i-17)槽第a层到第(i-23)槽第r层为第五跨跃段223,在第五跨跃段223内,绕线在第(i-17)槽和第(i-23)槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
如图1所示,在第三绕组部分230内,第(i-23)槽第r层为第三绕组部分230的起始端,第(i-36)槽第r层为第三绕组部分230的终止端,第三绕组部分230包括第六跨跃段231、第七跨跃段232和第八跨跃段233,从第(i-23)槽第r层到第(i-23)槽第a层为第六跨跃段231,在第六跨跃段231内,在第六跨跃段231内,绕线在第(i-23)槽和第(i-29)槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第(i-23)槽第a层到第(i-30)槽第a层为第七跨跃段232;从第(i-30)槽第a层到第(i-36)槽第r层为第八跨跃段233,在第八跨跃段233内,绕线在第(i-30)槽和第(i-36)槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
如图1所示,在第四绕组部分240内,第(i-36)槽第r层为第四绕组部分240的起始 端,第(i-41)槽次外层为第四绕组部分240的终止端,第四绕组部分240包括第九跨跃段241、第十跨跃段242和第十一跨跃段243,从第(i-36)槽第r层到第(i-36)槽第a层为第九跨跃段241,在第九跨跃段241内,绕线在第(i-36)槽和第(i-42)槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第(i-36)槽第a层到第(i-41)槽第a层为第十跨跃段242;从第(i-41)槽第a层到第(i-41)槽次外层为第十一跨跃段243,在第十一跨跃段243内,绕线在第(i-41)槽和第(i-47)槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
其中第(i-41)槽次外层具有第一星点线244。
需要说明的是,在数槽数的过程中,需要确定某一槽时,可以以第i槽为起点,当需要数到第“i-\+*”槽时,其中,当i和*之间为“-”时,沿图3所示的逆时针方向数“*”个槽,当i和*之间为“+”时,沿图3所示的顺时针方向数“*”个槽。例如,当需要数到第“i-11”槽时,其中,i和11之间为“-”,则沿图3所示的逆时针方向数“11”个槽;再如,当需要数到第“i+1”槽时,其中,i和1之间为“+”,则沿图3所示的逆时顺方向数“1”个槽。
如图2所示,定子绕组的每相第二路绕线300包括首尾连接的第五绕组部分310、第六绕组部分320、第七绕组部分330和第八绕组部分340,在第五绕组部分310内,第(n-47)槽第r层为第五绕组部分310的起始端,第(n-11)槽第r层为第五绕组部分310的终止端,第五绕组部分310包括第十二跨跃段311和第十三跨跃段312,从第(n-47)槽第r层到第(n-5)槽第a层为第十二跨跃段311,在第十二跨跃段311内,绕线在第(n-47)槽和第(n-5)槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第(n-5)槽第a层到第(n-11)槽第r层为第十三跨跃段312,在第十三跨跃段312内,绕线在第(n-5)槽和第(n-11)槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线,其中第(n-47)槽第r层连接第二引出线313。
如图2所示,在第六绕组部分320内,第(n-11)槽第r层为第六绕组部分320的起始端,第(n-24)槽第r层为第六绕组部分320的终止端,第六绕组部分320包括第十四跨跃段321、第十五跨跃段322和第十六跨跃段323,从第(n-11)槽第r层到第(n-11)槽第a层为第十四跨跃段321,在第十四跨跃段321内,绕线在第(n-11)槽和第(n-17)槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第(n-11)槽第a层到第(n-18)槽第a层为第十五跨跃段322;从第(n-18)槽第a层到第(n-24)槽第r层为第十六跨跃段323,在第十六跨跃段323内,绕线在第(n-18)槽和第(n-24)槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
如图2所示,在第七绕组部分330内,第(n-24)槽第r层为第七绕组部分330的起始 端,第(n-35)槽第r层为第七绕组部分330的终止端,第七绕组部分330包括第十七跨跃段331、第十八跨跃段332和第十九跨跃段333,从第(n-24)槽第r层到第(n-24)槽第a层为第十七跨跃段331,在第十七跨跃段331内,绕线在第(n-24)槽和第(n-30)槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第(n-24)槽第a层到第(n-29)槽第a层为第十八跨跃段332;从第(n-29)槽第a层到第(n-35)槽第r层为第十九跨跃段333,在第十九跨跃段333内,绕线在第(n-29)槽和第(n-35)槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
如图2所示,在第八绕组部分340内,第(n-35)槽第r层为第八绕组部分340的起始端,第(n-42)槽次外层为第八绕组部分340的终止端,第八绕组部分340包括第二十跨跃段341、第二十一跨跃段342和第二十二跨跃段343,从第(n-35)槽第r层到第(n-35)槽第a层为第二十跨跃段341,在第二十跨跃段341内,绕线在第(n-35)槽和第(n-41)槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第(n-35)槽第a层到第(n-42)槽第a层为第二十一跨跃段342;从第(n-42)槽第a层到第(n-42)槽次外层为第二十二跨跃段343,在第二十二跨跃段343内,绕线在第(n-42)槽和第n槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
其中第(i-42)槽次外层具有第二星点线344。
需要说明的是,在数槽数的过程中,需要确定某一槽时,可以以第n槽为起点,当需要数到第“n-\+*”槽时,其中,当n和*之间为“-”时,沿图3所示的逆时针方向数“*”个槽,当n和*之间为“+”时,沿图3所示的顺时针方向数“*”个槽。例如,当需要数到第“n-6”槽时,其中,n和6之间为“-”,则沿图3所示的逆时针方向数“6”个槽;再如,当需要数到第“n+7”槽时,其中,n和7之间为“+”,则沿图3所示的逆时顺方向数“7”个槽。
根据本申请实施例的定子组件,在绕线过程中,通过将多个跨跃段的节距设置成与其他跨跃段的节距不同,可以平衡定子槽100的电位矢量,抑制槽矩角的电位相角差,从而可以实现电路绕线之间电位的均衡,可以抑制定子绕组内部环流,具有低温升效果,而且,在抑制环流的同时,也可抑制环流产生的谐波电磁激励,从而可以大幅度地抑制电机工作时的振动和噪声。
对比图1及图2所示,根据本申请的一些实施例,n=i。由此,可以使得每相的第一路绕线200与第二路绕线300的设置更加紧凑、合理,可以使定子绕组的绕线结构得到优化,从而可以提升定子绕组的工作性能。
根据本申请的一些实施例,定子绕组包括多个导体段,每个导体段包括弯折部和分别连接至弯折部的第一槽内部分和第二槽内部分,多个导体段的位于相邻层的第一槽内部分和 第二槽内部分在焊接端焊接连接。导体段的设置结构简单、成型工艺实现方便,所需设备少,容易批量生产,且可以使得焊接端位于定子铁芯10的同一侧,方便焊接。定子绕组采用插线式成型方式,排布方式简单、方便实现,且只有一端有焊接点,焊接工艺简单,也便于用户对线路进行调整,另外,由于波绕方式不同,同槽内相邻槽层间扁线电压差小,能有效减少电机绝缘击穿风险,从而可以提高电机的可靠性。
如图1-图2所示,在本申请的一些实施例中,导体段包括第一类导体段、第二类导体段和第三类导体段,第一类导体段的第一槽内部分和第二槽内部分之间的节距为(y-1)个定子槽100,第二类导体段的第一槽内部分和第二槽内部分之间的节距为y个定子槽100,第三类导体段的第一槽内部分和第二槽内部分之间的节距为(y+1)个定子槽100,其中y为整数且y=z/2p。例如,y可以为6。由此,可以通过第一类导体段、第二类导体段和第三类导体段实现绕线,导体段的种类少,成型工艺实现方便,所需设备少,容易批量生产。而且,通过改变内层线圈跨距来交叉混绕,避免了电流环流,解决了两路电压不平衡及功率失调问题。另外,该导体段为多个,通过长短距变化,将分相槽的电位矢量平衡,抑制槽矩角的电位相角差,最终实现电路之间电位的均衡,可以抑制绕线内部环流,有低温升效果。
如图1-图2所示,在本申请的一些示例中,第一类导体段位于第四跨跃段222、第十跨跃段242和第十八跨跃段332,第一类导体段的第一槽内部分位于一个定子槽100的最内层,第一类导体段的第二槽内部分位于另一个定子槽100的最内层。由此,通过改变线圈跨距来交叉混绕,避免了电流环流,解决了两路电压不平衡及功率失调问题。
如图1-图2所示,在本申请的一些示例中,第二类导体段位于第一跨跃段211、第二跨跃段212、第三跨跃段221、第五跨跃段223、第六跨跃段231、第八跨跃段233、第九跨跃段241、第十一跨跃段243、第十二跨跃段311、第十三跨跃段312、第十四跨跃段321、第十六跨跃段323、第十七跨跃段331、第十九跨跃段333、第二十跨跃段341、第二十二跨跃段343;第二类导体段包括同层的导体段和异层的导体段,同层的导体段的第一槽内部分位于一个定子槽100的最外层,第二槽内部分位于另一个定子槽100的最外层,或者同层的导体段的第一槽内部分位于一个定子槽100的最内层,第二槽内部分位于另一个定子槽100的最内层,异层的导体段的第一槽内部分位于一个定子槽100的中间槽层101,第二槽内部分位于另一个定子槽100的中间槽层101,且异层跨跃。由此,通过改变线圈跨距来交叉混绕,避免了电流环流,解决了两路电压不平衡及功率失调问题。
如图1-图2所示,在本申请的一些示例中,第三类导体段位于第七跨跃段232、第十五跨跃段322及第二十一跨跃段342,第三类导体段的第一槽内部分位于一个定子槽100的最内层,第三类导体段的第二槽内部分位于另一个定子槽100的最内层。由此,通过改变线 圈跨距来交叉混绕,避免了电流环流,解决了两路电压不平衡及功率失调问题。
根据本申请实施例的电机,包括如上的定子组件。
根据本申请实施例的电机,在绕线过程中,通过将多个跨跃段的节距设置成与其他跨跃段的节距不同,可以平衡定子槽100的电位矢量,抑制槽矩角的电位相角差,从而可以实现电路绕线之间电位的均衡,可以抑制定子绕组内部环流,具有低温升效果,而且,在抑制环流的同时,也可抑制环流产生的谐波电磁激励,从而可以大幅度地抑制电机工作时的振动和噪声。
根据本申请实施例的定子组件,定子组件适用于48槽2p极m相的电机中,其每极每相槽数为q=z/m/(2p),并联支路数为a,a≤q。这里需要解释的是,z为定子槽100100的数目,m为相数,2p为极数。例如,z可以为24、48、72等,相数m可以是三相、两相或单相,极对数p可以是8极、4极等,可以根据具体适用的电机进行设定。
如图1-图3所示,定子组件包括定子铁芯10和定子绕组,定子铁芯10具有48个定子槽100,48个定子槽100沿定子铁芯10的周向方向分布,在定子铁芯10的周向方向上,多个定子槽100分别为第1槽、第2槽、…、第48槽,每个定子槽100中均具有6个槽层101,6个槽层101从定子铁芯10的径向内侧到外侧的方向上分别为第a层、第b层、第c层、第d层、第e层、第f层;定子绕组的每相第一路绕线200包括首尾连接的第一绕组部分210、第二绕组部分220、第三绕组部分230和第四绕组部分240;在第一绕组部分210内,第1槽第f层为第一绕组部分210的起始端,第37槽第f层为第一绕组部分210的终止端;第一绕组部分210包括第一跨跃段211和第二跨跃段212;从第1槽第f层到第43槽第f层为第一跨跃段211,在第一跨跃段211内,绕线在第i槽和第43槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;在第二跨跃段212内,绕线在第43槽和第37槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线,其中第1槽第f层具有第一引出线213。
如图1所示,在第二绕组部分220内,第37槽第f层为第二绕组部分220的起始端,第26槽第f层为第二绕组部分220的终止端,第二绕组部分220包括第三跨跃段221、第四跨跃段222和第五跨跃段223,从第37槽第f层到第37槽第a层为第三跨跃段221,在第三跨跃段221内,绕线在第37槽和第31槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第37槽第a层到第32槽第a层为第四跨跃段222;从第32槽第a层到第26槽第f层为第五跨跃段223,在第五跨跃段223内,绕线在第32槽和第26槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
如图1所示,在第三绕组部分230内,第26槽第f层为第三绕组部分230的起始端,第13槽第f层为第三绕组部分230的终止端;第三绕组部分230包括第六跨跃段231、第 七跨跃段232和第八跨跃段233;从第26槽第f层到第26槽第a层为第六跨跃段231,在第六跨跃段231内,绕线在第26槽和第20槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第26槽第a层到第19槽第a层为第七跨跃段232;从第19槽第a层到第13槽第f层为第八跨跃段233,在第八跨跃段233内,绕线在第19槽和第13槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
如图1所示,在第四绕组部分240内,第13槽第f层为第四绕组部分240的起始端,第8槽次外层为第四绕组部分240的终止端;第四绕组部分240包括第九跨跃段241、第十跨跃段242和第十一跨跃段243;从第13槽第f层到第13槽第a层为第九跨跃段241,在第九跨跃段241内,绕线在第13槽和第7槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第13槽第a层到第8槽第a层为第十跨跃段242;从第8槽第a层到第8槽次外层为第十一跨跃段243,在第十一跨跃段243内,绕线在第8槽和第2槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
其中第8槽次外层具有第一星点线244。
如图2所示,定子绕组的每相第二路绕线300包括首尾连接的第五绕组部分310、第六绕组部分320、第七绕组部分330和第八绕组部分340;在第五绕组部分310内,第2槽第f层为第五绕组部分310的起始端,第38槽第f层为第五绕组部分310的终止端;第五绕组部分310包括第十二跨跃段311和第十三跨跃段312;从第2槽第f层到第44槽第a层为第十二跨跃段311,在第十二跨跃段311内,绕线在第2槽和第44槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第44槽第a层到第38槽第f层为第十三跨跃段312,在第十三跨跃段312内,绕线在第44槽和第38槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线,其中第2槽第f层具有第二引出线313。
如图2所示,在第六绕组部分320内,第38槽第f层为第六绕组部分320的起始端,第25槽第f层为第六绕组部分320的终止端;第六绕组部分320包括第十四跨跃段321、第十五跨跃段322和第十六跨跃段323;从第38槽第f层到第38槽第a层为第十四跨跃段321,在第十四跨跃段321内,绕线在第38槽和第32槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第38槽第a层到第31槽第a层为第十五跨跃段322;从第31槽第a层到第25槽第f层为第十六跨跃段323,在第十六跨跃段323内,绕线在第31槽和第25槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
如图2所示,在第七绕组部分330内,第25槽第f层为第七绕组部分330的起始端,第14槽第f层为第七绕组部分330的终止端;第七绕组部分330包括第十七跨跃段331、第十八跨跃段332和第十九跨跃段333;从第25槽第f层到第25槽第a层为第十七跨跃段331,在第十七跨跃段331内,绕线在第25槽和第19槽之间往复且从定子铁芯10的径向 外侧到径向内侧绕线;从第25槽第a层到第20槽第a层为第十八跨跃段332;从第20槽第a层到第14槽第f层为第十九跨跃段333,在第十九跨跃段333内,绕线在第20槽和第14槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
如图2所示,在第八绕组部分340内,第14槽第f层为第八绕组部分340的起始端,第7槽次外层为第八绕组部分340的终止端;第八绕组部分340包括第二十跨跃段341、第二十一跨跃段342和第二十二跨跃段343;从第14槽第f层到第14槽第a层为第二十跨跃段341,在第二十跨跃段341内,绕线在第14槽和第8槽之间往复且从定子铁芯10的径向外侧到径向内侧绕线;从第14槽第a层到第7槽第a层为第二十一跨跃段342;从第7槽第a层到第7槽次外层为第二十二跨跃段343,在第二十二跨跃段343内,绕线在第7槽和第1槽之间往复且从定子铁芯10的径向内侧到径向外侧绕线。
其中第7槽次外层具有第二星点线344。
根据本申请实施例的定子组件,在绕线过程中,通过将多个跨跃段的节距设置成与其他跨跃段的节距不同,可以平衡定子槽100的电位矢量,抑制槽矩角的电位相角差,从而可以实现电路绕线之间电位的均衡,可以抑制定子绕组内部环流,具有低温升效果,而且,在抑制环流的同时,也可抑制环流产生的谐波电磁激励,从而可以大幅度地抑制电机工作时的振动和噪声。另外,定子绕组采用插线式成型方式,排布方式简单、方便实现,且只有一端有焊接点,焊接工艺简单,也便于用户对线路进行调整,另外,由于波绕方式不同,同槽内相邻槽层间扁线电压差小,能有效减少电机绝缘击穿风险,从而可以提高电机的可靠性。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外,在不相互矛盾的情况下,本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本申请的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本申请的限制,本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (9)

  1. 一种定子组件,所述定子组件适用于z槽2p极m相的电机中,其每极每相槽数为q=z/m/(2p),并联支路数为a,a≤q,所述定子组件包括定子铁芯和定子绕组,所述定子铁芯具有多个定子槽,多个所述定子槽沿所述定子铁芯的周向方向分布,在所述定子铁芯的周向方向上,多个所述定子槽分别为第1槽、第2槽、…、第i槽、…、第n槽、…,每个所述定子槽中均具有r个槽层,r个所述槽层从所述定子铁芯的径向内侧到外侧的方向上分别为第a层、第b层、…、第j层、…、第r层;
    其特征在于,所述定子绕组的每相第一路绕线包括首尾连接的第一绕组部分、第二绕组部分、第三绕组部分和第四绕组部分,在所述第一绕组部分内,第i槽第r层为所述第一绕组部分的起始端,第(i-12)槽第r层为所述第一绕组部分的终止端,所述第一绕组部分包括第一跨跃段和第二跨跃段,从第i槽第r层到第(i-6)槽第r层为所述第一跨跃段,在所述第一跨跃段内,绕线在第i槽和第(i-6)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;在所述第二跨跃段内,绕线在第(i-6)槽和第(i-12)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线,其中第i槽第r层连接第一引出线;
    在所述第二绕组部分内,第(i-12)槽第r层为所述第二绕组部分的起始端,第(i-23)槽第r层为所述第二绕组部分的终止端,所述第二绕组部分包括第三跨跃段、第四跨跃段和第五跨跃段,从第(i-12)槽第r层到第(i-12)槽第a层为第三跨跃段,在所述第三跨跃段内,绕线在第(i-12)槽和第(i-18)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(i-12)槽第a层到第(i-17)槽第a层为所述第四跨跃段;从第(i-17)槽第a层到第(i-23)槽第r层为所述第五跨跃段,在所述第五跨跃段内,绕线在第(i-17)槽和第(i-23)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;
    在所述第三绕组部分内,第(i-23)槽第r层为所述第三绕组部分的起始端,第(i-36)槽第r层为所述第三绕组部分的终止端,所述第三绕组部分包括第六跨跃段、第七跨跃段和第八跨跃段,从第(i-23)槽第r层到第(i-23)槽第a层为第六跨跃段,在所述第六跨跃段内,在所述第六跨跃段内,绕线在第(i-23)槽和第(i-29)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(i-23)槽第a层到第(i-30)槽第a层为所述第七跨跃段;从第(i-30)槽第a层到第(i-36)槽第r层为所述第八跨跃段,在所述第八跨跃段内,绕线在第(i-30)槽和第(i-36)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;
    在所述第四绕组部分内,第(i-36)槽第r层为所述第四绕组部分的起始端,第(i-41)槽次外层为所述第四绕组部分的终止端,所述第四绕组部分包括第九跨跃段、第十跨跃段和第十一跨跃段,从第(i-36)槽第r层到第(i-36)槽第a层为第九跨跃段,在所述第九跨跃段内,绕线在第(i-36)槽和第(i-42)槽之间往复且从所述定子铁芯的径向外侧 到径向内侧绕线;从第(i-36)槽第a层到第(i-41)槽第a层为所述第十跨跃段;从第(i-41)槽第a层到第(i-41)槽次外层为所述第十一跨跃段,在所述第十一跨跃段内,绕线在第(i-41)槽和第(i-47)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线,其中第(i-41)槽次外层具有第一星点线;
    所述定子绕组的每相第二路绕线包括首尾连接的第五绕组部分、第六绕组部分、第七绕组部分和第八绕组部分,在所述第五绕组部分内,第(n-47)槽第r层为所述第五绕组部分的起始端,第(n-11)槽第r层为所述第五绕组部分的终止端,所述第五绕组部分包括第十二跨跃段和第十三跨跃段,从第(n-47)槽第r层到第(n-5)槽第a层为所述第十二跨跃段,在所述第十二跨跃段内,绕线在第(n-47)槽和第(n-5)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(n-5)槽第a层到第(n-11)槽第r层为所述第十三跨跃段,在所述第十三跨跃段内,绕线在第(n-5)槽和第(n-11)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线,其中第(n-47)槽第r层连接第二引出线;
    在所述第六绕组部分内,第(n-11)槽第r层为所述第六绕组部分的起始端,第(n-24)槽第r层为所述第六绕组部分的终止端,所述第六绕组部分包括第十四跨跃段、第十五跨跃段和第十六跨跃段,从第(n-11)槽第r层到第(n-11)槽第a层为第十四跨跃段,在所述第十四跨跃段内,绕线在第(n-11)槽和第(n-17)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(n-11)槽第a层到第(n-18)槽第a层为所述第十五跨跃段;从第(n-18)槽第a层到第(n-24)槽第r层为第十六跨跃段,在所述第十六跨跃段内,绕线在第(n-18)槽和第(n-24)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;
    在所述第七绕组部分内,第(n-24)槽第r层为所述第七绕组部分的起始端,第(n-35)槽第r层为所述第七绕组部分的终止端,所述第七绕组部分包括第十七跨跃段、第十八跨跃段和第十九跨跃段,从第(n-24)槽第r层到第(n-24)槽第a层为第十七跨跃段,在所述第十七跨跃段内,绕线在第(n-24)槽和第(n-30)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(n-24)槽第a层到第(n-29)槽第a层为所述第十八跨跃段;从第(n-29)槽第a层到第(n-35)槽第r层为所述第十九跨跃段,在所述第十九跨跃段内,绕线在第(n-29)槽和第(n-35)槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;
    在所述第八绕组部分内,第(n-35)槽第r层为所述第八绕组部分的起始端,第(n-42)槽次外层为所述第八绕组部分的终止端,所述第八绕组部分包括第二十跨跃段、第二十一跨跃段和第二十二跨跃段,从第(n-35)槽第r层到第(n-35)槽第a层为第二十跨跃段,在所述第二十跨跃段内,绕线在第(n-35)槽和第(n-41)槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第(n-35)槽第a层到第(n-42)槽第a层为所述第二十一跨跃段;从第(n-42)槽第a层到第(n-42)槽次外层为所述第二十二跨跃段,在所述 第二十二跨跃段内,绕线在第(n-42)槽和第n槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线,其中第(i-42)槽次外层具有第二星点线。
  2. 根据权利要求1所述的定子组件,其特征在于,n=i。
  3. 根据权利要求1或2所述的定子组件,其特征在于,所述定子绕组包括多个导体段,每个所述导体段包括弯折部和分别连接至所述弯折部的第一槽内部分和第二槽内部分,所述多个导体段的位于相邻层的所述第一槽内部分和所述第二槽内部分在焊接端焊接连接。
  4. 根据权利要求3所述的定子组件,其特征在于,所述导体段包括第一类导体段、第二类导体段和第三类导体段,所述第一类导体段的所述第一槽内部分和所述第二槽内部分之间的节距为(y-1)个所述定子槽,所述第二类导体段的所述第一槽内部分和所述第二槽内部分之间的节距为y个所述定子槽,所述第三类导体段的所述第一槽内部分和所述第二槽内部分之间的节距为(y+1)个所述定子槽,其中y为整数且y=z/2p。
  5. 根据权利要求4所述的定子组件,其特征在于,所述第一类导体段位于所述第四跨跃段、所述第十跨跃段和所述第十八跨跃段,所述第一类导体段的所述第一槽内部分位于一个所述定子槽的最内层,所述第一类导体段的所述第二槽内部分位于另一个所述定子槽的最内层。
  6. 根据权利要求4所述的定子组件,其特征在于,所述第二类导体段位于所述第一跨跃段、所述第二跨跃段、所述第三跨跃段、所述第五跨跃段、所述第六跨跃段、所述第八跨跃段、所述第九跨跃段、所述第十一跨跃段、所述第十二跨跃段、所述第十三跨跃段、所述第十四跨跃段、所述第十六跨跃段、所述第十七跨跃段、所述第十九跨跃段、所述第二十跨跃段、所述第二十二跨跃段;
    所述第二类导体段包括同层的导体段和异层的导体段,所述同层的导体段的所述第一槽内部分位于一个所述定子槽的最外层,所述第二槽内部分位于另一个所述定子槽的最外层,或者所述同层的导体段的所述第一槽内部分位于一个所述定子槽的最内层,所述第二槽内部分位于另一个所述定子槽的最内层,所述异层的导体段的所述第一槽内部分位于一个所述定子槽的中间槽层,所述第二槽内部分位于另一个所述定子槽的中间槽层,且异层跨跃。
  7. 根据权利要求4所述的定子组件,其特征在于,所述第三类导体段位于所述第七跨跃段、所述第十五跨跃段及所述第二十一跨跃段,所述第三类导体段的所述第一槽内部分位于一个所述定子槽的最内层,所述第三类导体段的所述第二槽内部分位于另一个所述定子槽的最内层。
  8. 一种电机,其特征在于,包括根据权利要求1-7中任一项所述的定子组件。
  9. 一种定子组件,所述定子组件适用于48槽2p极m相的电机中,其每极每相槽数为q=z/m/(2p),并联支路数为a,a≤q,所述定子组件包括定子铁芯和定子绕组,所述定子铁芯具有48个定子槽,48个所述定子槽沿所述定子铁芯的周向方向分布,在所述定子铁芯的周向方向上,多个所述定子槽分别为第1槽、第2槽、…、第48槽,每个所述定子槽中均 具有6个槽层,6个所述槽层从所述定子铁芯的径向内侧到外侧的方向上分别为第a层、第b层、第c层、第d层、第e层、第f层;
    所述定子绕组的每相第一路绕线包括首尾连接的第一绕组部分、第二绕组部分、第三绕组部分和第四绕组部分;在所述第一绕组部分内,第1槽第f层为所述第一绕组部分的起始端,第37槽第f层为所述第一绕组部分的终止端;所述第一绕组部分包括第一跨跃段和第二跨跃段;从第1槽第f层到第43槽第f层为所述第一跨跃段,在所述第一跨跃段内,绕线在第i槽和第43槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;在所述第二跨跃段内,绕线在第43槽和第37槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线,其中第1槽第f层具有第一引出线;
    在所述第二绕组部分内,第37槽第f层为所述第二绕组部分的起始端,第26槽第f层为所述第二绕组部分的终止端,所述第二绕组部分包括第三跨跃段、第四跨跃段和第五跨跃段,从第37槽第f层到第37槽第a层为所述第三跨跃段,在所述第三跨跃段内,绕线在第37槽和第31槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第37槽第a层到第32槽第a层为所述第四跨跃段;从第32槽第a层到第26槽第f层为所述第五跨跃段,在所述第五跨跃段内,绕线在第32槽和第26槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;
    在所述第三绕组部分内,第26槽第f层为所述第三绕组部分的起始端,第13槽第f层为所述第三绕组部分的终止端;所述第三绕组部分包括第六跨跃段、第七跨跃段和第八跨跃段;从第26槽第f层到第26槽第a层为所述第六跨跃段,在所述第六跨跃段内,绕线在第26槽和第20槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第26槽第a层到第19槽第a层为所述第七跨跃段;从第19槽第a层到第13槽第f层为所述第八跨跃段,在所述第八跨跃段内,绕线在第19槽和第13槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;
    在所述第四绕组部分内,第13槽第f层为所述第四绕组部分的起始端,第8槽次外层为所述第四绕组部分的终止端;所述第四绕组部分包括第九跨跃段、第十跨跃段和第十一跨跃段;从第13槽第f层到第13槽第a层为所述第九跨跃段,在所述第九跨跃段内,绕线在第13槽和第7槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第13槽第a层到第8槽第a层为所述第十跨跃段;从第8槽第a层到第8槽次外层为所述第十一跨跃段,在所述第十一跨跃段内,绕线在第8槽和第2槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;其中第8槽次外层具有第一星点线;
    所述定子绕组的每相第二路绕线包括首尾连接的第五绕组部分、第六绕组部分、第七绕组部分和第八绕组部分;
    在所述第五绕组部分内,第2槽第f层为所述第五绕组部分的起始端,第38槽第f层为所述第五绕组部分的终止端;
    所述第五绕组部分包括所述第十二跨跃段和所述第十三跨跃段;从第2槽第f层到第44槽第a层为所述第十二跨跃段,在所述第十二跨跃段内,绕线在第2槽和第44槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;
    从第44槽第a层到第38槽第f层为所述第十三跨跃段,在所述第十三跨跃段内,绕线在第44槽和第38槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线,其中第2槽第f层具有第二引出线;
    在所述第六绕组部分内,第38槽第f层为所述第六绕组部分的起始端,第25槽第f层为所述第六绕组部分的终止端;所述第六绕组部分包括第十四跨跃段、第十五跨跃段和第十六跨跃段;从第38槽第f层到第38槽第a层为所述第十四跨跃段,在所述第十四跨跃段内,绕线在第38槽和第32槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第38槽第a层到第31槽第a层为所述第十五跨跃段;从第31槽第a层到第25槽第f层为所述第十六跨跃段,在所述第十六跨跃段内,绕线在第31槽和第25槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;
    在所述第七绕组部分内,第25槽第f层为所述第七绕组部分的起始端,第14槽第f层为所述第七绕组部分的终止端;所述第七绕组部分包括第十七跨跃段、第十八跨跃段和第十九跨跃段;从第25槽第f层到第25槽第a层为所述第十七跨跃段,在所述第十七跨跃段内,绕线在第25槽和第19槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第25槽第a层到第20槽第a层为所述第十八跨跃段;从第20槽第a层到第14槽第f层为所述第十九跨跃段,在所述第十九跨跃段内,绕线在第20槽和第14槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;
    在所述第八绕组部分内,第14槽第f层为所述第八绕组部分的起始端,第7槽次外层为所述第八绕组部分的终止端;所述第八绕组部分包括第二十跨跃段、第二十一跨跃段和第二十二跨跃段;从第14槽第f层到第14槽第a层为所述第二十跨跃段,在所述第二十跨跃段内,绕线在第14槽和第8槽之间往复且从所述定子铁芯的径向外侧到径向内侧绕线;从第14槽第a层到第7槽第a层为所述第二十一跨跃段;从第7槽第a层到第7槽次外层为所述第二十二跨跃段,在所述第二十二跨跃段内,绕线在第7槽和第1槽之间往复且从所述定子铁芯的径向内侧到径向外侧绕线;其中第7槽次外层具有第二星点线。
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