WO2017113512A1 - Tôle perforée de stator, ensemble stator, et moteur à rotor externe - Google Patents

Tôle perforée de stator, ensemble stator, et moteur à rotor externe Download PDF

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Publication number
WO2017113512A1
WO2017113512A1 PCT/CN2016/075899 CN2016075899W WO2017113512A1 WO 2017113512 A1 WO2017113512 A1 WO 2017113512A1 CN 2016075899 W CN2016075899 W CN 2016075899W WO 2017113512 A1 WO2017113512 A1 WO 2017113512A1
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WO
WIPO (PCT)
Prior art keywords
groove
working
tooth
stator
common
Prior art date
Application number
PCT/CN2016/075899
Other languages
English (en)
Chinese (zh)
Inventor
付桂文
王雄程
朱金成
邓双朝
叶玉明
焦青梅
Original Assignee
中山大洋电机股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Publication of WO2017113512A1 publication Critical patent/WO2017113512A1/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
    • 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
    • H02K1/165—Shape, form or location of the 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
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots

Definitions

  • the invention relates to a stator punching piece, a stator assembly and an outer rotor motor, and belongs to the technical field of motors.
  • Current motors such as plastic outer rotor motors, include a molded stator and a motor rotor.
  • the molded stator includes a stator core laminated by a plurality of stator punches and a main coil winding and a secondary coil winding wound around the stator core.
  • each of the ruled grooves has the same size and shape and is uniformly distributed on the outer side of the circumference.
  • the structure is simple and easy to mold, the winding wire is inconvenient and the winding ends are high and high, resulting in high consumption of motor materials and high cost.
  • the welt grooves are located on the outer side, the teeth are narrower, resulting in higher magnetic density of the stator teeth, thereby affecting the performance and efficiency of the motor.
  • a stator punching piece comprising a punching body having a central hole, the punching body comprising an annular yoke and a plurality of teeth extending outwardly from an outer edge of the annular yoke, the punching body being provided with a plurality of a slot group and a plurality of second slot groups, wherein the first slot group and the second slot group are alternately arranged circumferentially on the outer edge of the punching piece, and the first slot group is along the punching piece a depth in a radial direction of the body is deeper than a depth of the second groove group in a radial direction of the punch body, the first groove set including a first common welt groove in the middle and respectively located in the first common rule line a first left welt groove and a first right welt groove on both sides of the slot, the second slot set includes a second common welt slot in the middle and a second left embedding on each side of the second common welt slot Trunking and second right welt.
  • the plurality of teeth include a plurality of first tooth portions, a second tooth portion and a third tooth portion, the first tooth portion, the second tooth portion and the third tooth portion being juxtaposed together to form one tooth unit, and the plurality of tooth units are circumferentially Distribution, where Forming the first left ruled groove between the first tooth portion and the second tooth portion, forming the first common wire groove between the second tooth portion and the third tooth portion, and the third tooth portion and the third tooth portion
  • the first right welt groove is formed between a tooth portion.
  • the first tooth portion includes a common root portion and left, right, right, and right teeth extending outward from the common root, wherein the first portion is formed between the left and left straight teeth a second left ruled groove, the second common welt groove is formed between the left straight tooth and the right straight tooth, and the second right ruled groove is formed between the right straight tooth and the right curved tooth.
  • the left straight tooth and the right straight tooth are symmetrically distributed along the radial center line of the common root portion, and the left and right curved teeth are also symmetrically distributed along the radial center line of the common root portion, and the second left weld groove is close to the slot.
  • the notch of the second common welt groove is located at an intermediate position between the left straight tooth and the right straight tooth, and the notch of the second right wire groove is close to the right straight tooth.
  • the width of the common root portion is greater than the width of the left straight or right straight teeth, and the width of the common root portion gradually increases outward in the radial direction of the punch body.
  • the bottom of the groove of the second left ruled groove and the second right ruled groove is an arc formed by the center of the punch body.
  • the second tooth portion and the third tooth portion are all spur-shaped, and the second tooth portion and the third tooth portion are symmetrically distributed along a radial center line of the first common welt groove, the first common wire groove
  • the notch is located at an intermediate position between the second tooth portion and the third tooth portion.
  • the first left inlaid groove and the bottom of the first right inlaid groove are arcs formed by a center of the center of the punching body.
  • the number of the first slot group and the second slot group is four, wherein the first slot group is used for winding the secondary winding, and the second slot group is for winding the main winding.
  • stator assembly including a stator core, an end insulation, a first working winding, and a second working winding, the end insulation being mounted on an end face of the stator core, the stator core being as described above
  • the stator windings are stacked, the first working winding is wound around the first slot group, the second working winding is wound around the second slot group, and the first working winding comprises a plurality of groups distributed along the circumferential interval.
  • each of the first working coils comprises a plurality of first working inner layer coils and a plurality of ⁇ a first working outer coil
  • the first working inner layer coil is disposed in parallel with the inner and outer coils of the first working outer layer coil
  • the two ends of the first working inner layer coil are respectively disposed adjacent to the adjacent two first groove groups a right wire groove and a first left wire groove
  • the first working outer coil is respectively wound around the first common wire groove in the adjacent two first groove groups
  • each second working coil The utility model comprises a plurality of second working inner layer coils and a plurality of second working outer layer coils, wherein the second working inner layer coil is arranged in parallel with
  • the outer rotor motor comprises a rotating shaft, a plastic sealing stator and an outer rotor.
  • the outer rotor is sleeved outside the plastic sealing stator.
  • the rotating shaft is installed in the middle of the plastic sealing stator and is connected with the outer rotor.
  • the plastic sealing stator comprises a stator core, an end insulation and a coil.
  • the winding and the plastic body are respectively insulated on the end surface of the stator core, and the coil winding is wound around the end insulation, and the plastic sealing body integrally connects the stator core, the end insulation and the coil winding, and the stator core is It is laminated by a plurality of stator punches as described above.
  • the invention has the following effects:
  • the depth of the first groove group in the radial direction of the punch body is deeper than the depth of the second groove group in the radial direction of the punch body, thereby reducing and avoiding the main and auxiliary coil windings Overlap, facilitating winding and arranging, making the ends of the primary and secondary coil windings shorter and lower, reducing the amount of copper used in the primary and secondary coil windings, which is advantageous for reducing costs
  • the first slot group and the The second slot group is disposed in plurality, and the first slot group and the second slot group are alternately arranged circumferentially on the outer edge of the punch body, and the first slot group includes the middle slot a first common welt slot and a first left welt slot and a first right welt slot respectively located on opposite sides of the first common welt slot, the second slot set including a second common welt slot in the middle and respectively The second left inlaid trough and the second right inlaid trough on both sides of the second common welt groove improve the punch structure by adding the first common inlay
  • Figure 1 is a schematic view showing the structure of a stator punching piece in the embodiment
  • FIG. 2 is a schematic structural view of a stator assembly in an embodiment
  • FIG. 3 is a partial structural schematic view of a stator assembly in an embodiment
  • Figure 4 is a perspective view of the outer rotor motor in the embodiment
  • Fig. 5 is a schematic structural view of an outer rotor motor in the embodiment.
  • Embodiment 1 As shown in FIG. 1 , this embodiment is a stator punching piece comprising a punching body 1 with a central hole, the punching body 1 including an annular yoke 10 and an outer edge of the annular yoke 10 a plurality of teeth extending upwardly, the punch body 1 being provided with a first groove group 2 and a second groove group 3, the first groove group 2 being deep in the radial direction of the punch body 1 a plurality of the first slot group 2 and the second slot group 3 are disposed at a depth of the second slot group 3 along a radial direction of the punch body 1, and the first slot group 2 And the second slot group 3 are alternately arranged circumferentially on the outer edge of the punching body 1 , the first slot group 2 includes a first common welt slot 21 in the middle and respectively located in the first common inlay a first left ruled groove 22 and a first right wire groove 23 on both sides of the wire groove 21, the second groove group 3 includes a second common wire groove 31 located in the
  • the plurality of teeth include a plurality of first tooth portions 11, a second tooth portion 12 and a third tooth portion 13, and the first tooth portion 11, the second tooth portion 12 and the third tooth portion 13 are juxtaposed together to form a tooth unit.
  • the plurality of tooth units are distributed in the circumferential direction, wherein the first left ruled groove 22 is formed between the first tooth portion 11 and the second tooth portion 12, and is formed between the second tooth portion 12 and the third tooth portion 13.
  • the first common welt groove 21 forms the first right welt groove 23 between the third tooth portion 13 and the first tooth portion 11.
  • the first tooth portion 11 includes a common root portion 111 and left curved teeth 112, left straight teeth 113, right straight teeth 114 and right curved teeth 115 extending outward from the common root portion 111, wherein the left curved teeth 112 and The second left ruled groove 32 is formed between the left straight teeth 113, and the second common wire groove 31 is formed between the left straight teeth 113 and the right straight teeth 114, on the right The second right ruled groove 33 is formed between the straight tooth 114 and the right curved tooth 115.
  • the left straight tooth 113 and the right straight tooth 114 are symmetrically distributed along the radial center line A1 of the common root portion 111, and the left curved tooth 112 and the right curved tooth 115 are also symmetrically distributed along the radial center line A1 of the common root portion 111, the second left
  • the slot of the wire groove 32 is close to the left straight tooth 113
  • the notch of the second common wire groove 31 is located at an intermediate position between the left straight tooth 113 and the right straight tooth 114
  • the groove of the second right rule groove 33 The mouth is close to the right straight tooth 114.
  • the width of the common root portion 111 is larger than the width of the left straight tooth 113 or the right straight tooth 114, and the width of the common root portion 111 gradually becomes larger outward in the radial direction of the punch body 1.
  • Both the second left inlaid groove 32 and the groove bottom 34 of the second right inlaid groove 33 are arcs formed by the center O of the punch body 1 as a center.
  • the second tooth portion 12 and the third tooth portion 13 are each in a straight tooth shape, and the second tooth portion 12 and the third tooth portion 13 are symmetrically distributed along a radial center line A2 of the first common welt groove 21,
  • the notch of a common welt groove 21 is located at an intermediate position between the second tooth portion 12 and the third tooth portion 13.
  • the first left welt groove 22 and the groove bottom 24 of the first right welt groove 23 are each a circular arc formed by the center O of the punch body 1 as a center.
  • the number of the first slot group 2 and the second slot group 3 is four, wherein the first slot group 2 is for winding the secondary winding, and the second slot group 3 is for winding the main winding.
  • Embodiment 2 As shown in FIG. 1 , FIG. 2 and FIG. 3 , the embodiment is a stator assembly including a stator core, an end insulation, a first working winding 4 and a second working winding 5, The end insulation is mounted on the end face of the stator core, and the stator core is formed by stacking a plurality of stator punches 1 as described in the first embodiment, and the first working winding 4 is wound around the first slot group 2, The second working winding 5 is wound around the second slot group 3, and the first working winding 4 includes a plurality of sets of first working coils 41 distributed in the circumferential direction, and the plurality of sets of first working coils 41 are sequentially connected together.
  • the second working winding 5 includes a plurality of sets of second working coils 51 distributed in the circumferential direction, and the plurality of sets of second working coils 51 are sequentially connected together, and the first working coil 41 and the second working coil 51 are alternately arranged in parallel with each other, wherein each The first working coil 41 includes a plurality of first working inner layer coils 411 and a plurality of first working outer layer coils 412, and the first working inner layer coils 411 are disposed in parallel with the inner and outer portions of the first working outer layer coils 412, within the first working
  • the two ends of the layer coil 411 are respectively disposed adjacent to the two adjacent ones
  • the adjacent first right inlaid groove 23 and the first left inlaid groove 22 in the group 2 are wound around the common root portion 111 of the first tooth portion 11, and the first working outer layer coil 412 is respectively respectively Winding
  • Embodiment 3 As shown in FIG. 1 to FIG. 5, the present embodiment is an outer rotor motor including a rotating shaft 6, a molded stator 7 and an outer rotor 8.
  • the outer rotor 8 is sleeved on the outside of the plastic stator 7, and the rotating shaft 6 is mounted on
  • the stator 7 is molded in the middle and is coupled to the outer rotor 8.
  • the molded stator 7 includes a stator core 71, an end insulation 72, a coil winding 73, and a molding body 74.
  • the end insulation 72 is mounted on the end surface of the stator core 71.
  • the coil winding 73 is wound around the end insulation 72.
  • the molding body 74 integrally connects the stator core 71, the end insulation 72 and the coil winding 73.
  • the stator core 71 is formed by several embodiments as described in the first embodiment.
  • the stator punching piece 1 is laminated, and the structure of the stator punching piece will not be described here.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

L'invention porte sur une tôle perforée de stator, un ensemble stator et un moteur à rotor externe. La tôle perforée de stator comprend un corps de tôle perforée (1) comportant un trou central, le corps de tôle perforée (1) comprenant une culasse annulaire (10) et une pluralité de dents qui s'étendent à partir du bord extérieur de la culasse annulaire (10) ; le corps de tôle perforée (1) est pourvu d'une pluralité de groupes de premières rainures (2) et d'une pluralité de groupes de secondes rainures (3) ; les groupes de premières rainures (2) et les groupes de secondes rainures (3) sont agencés en alternance sur le bord extérieur du corps de tôle perforée (1) dans la direction circonférentielle ; la profondeur des groupes de premières rainures (2) dans la direction radiale du corps de tôle perforée (1) est supérieure à celle des groupes de secondes rainures (3) dans la direction radiale du corps de tôle perforée (1) ; chacun des groupes de premières rainures (2) comprend une première rainure d'encastrement de fil partagée (21) située au milieu, et une première rainure d'encastrement de fil gauche (22) et une première rainure d'encastrement de fil droite (23) qui sont respectivement situées des deux côtés de la première rainure d'encastrement de fil partagée (21) ; et chacun des groupes de secondes rainures (3) comprend une seconde rainure d'encastrement de fil partagée (31) située au milieu, et une seconde rainure d'encastrement de fil gauche (32) et une seconde rainure d'encastrement de fil droite (33) qui sont respectivement situées des deux côtés de la seconde rainure d'encastrement de fil partagée (31). La tôle perforée de stator peut améliorer les performances d'un moteur.
PCT/CN2016/075899 2015-12-31 2016-03-08 Tôle perforée de stator, ensemble stator, et moteur à rotor externe WO2017113512A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201511033652.6A CN106936233B (zh) 2015-12-31 2015-12-31 一种定子组件及外转子电机
CN201511033652.6 2015-12-31

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Publication Number Publication Date
WO2017113512A1 true WO2017113512A1 (fr) 2017-07-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107872107A (zh) * 2017-11-06 2018-04-03 珠海格力节能环保制冷技术研究中心有限公司 定子冲片、定子及电机
CN108880012A (zh) * 2018-09-18 2018-11-23 东莞市领亚自动化科技有限公司 一种霍尔式伺服马达及定子的制造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000011775A1 (fr) * 1998-08-24 2000-03-02 Robert Bosch Gmbh Stator pour moteur d'entrainement electrique
CN103746474A (zh) * 2013-09-30 2014-04-23 广东威灵电机制造有限公司 定子铁芯冲片、电机定子铁芯及电机
CN103931082A (zh) * 2011-09-28 2014-07-16 西门子公司 带有定子和可变槽间距的电机
CN204408035U (zh) * 2015-01-21 2015-06-17 中山大洋电机股份有限公司 一种定子冲片及其应用的塑封定子和外转子电机

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CN201418017Y (zh) * 2009-05-07 2010-03-03 美的集团有限公司 单相电容运转电机
CN202513786U (zh) * 2012-03-02 2012-10-31 合肥凯邦电机有限公司 一种电机的定子铁芯
CN203206002U (zh) * 2013-03-14 2013-09-18 珠海格力电器股份有限公司 定子冲片及电机
CN103532266A (zh) * 2013-10-15 2014-01-22 珠海凯邦电机制造有限公司 同心式绕组的定子

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000011775A1 (fr) * 1998-08-24 2000-03-02 Robert Bosch Gmbh Stator pour moteur d'entrainement electrique
CN103931082A (zh) * 2011-09-28 2014-07-16 西门子公司 带有定子和可变槽间距的电机
CN103746474A (zh) * 2013-09-30 2014-04-23 广东威灵电机制造有限公司 定子铁芯冲片、电机定子铁芯及电机
CN204408035U (zh) * 2015-01-21 2015-06-17 中山大洋电机股份有限公司 一种定子冲片及其应用的塑封定子和外转子电机

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107872107A (zh) * 2017-11-06 2018-04-03 珠海格力节能环保制冷技术研究中心有限公司 定子冲片、定子及电机
CN108880012A (zh) * 2018-09-18 2018-11-23 东莞市领亚自动化科技有限公司 一种霍尔式伺服马达及定子的制造方法
CN108880012B (zh) * 2018-09-18 2023-12-15 东莞市领亚自动化科技有限公司 一种霍尔式伺服马达及定子的制造方法

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CN106936233B (zh) 2020-01-03
CN106936233A (zh) 2017-07-07

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