WO2011076027A1 - 一种电机定子结构 - Google Patents

一种电机定子结构 Download PDF

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Publication number
WO2011076027A1
WO2011076027A1 PCT/CN2010/077243 CN2010077243W WO2011076027A1 WO 2011076027 A1 WO2011076027 A1 WO 2011076027A1 CN 2010077243 W CN2010077243 W CN 2010077243W WO 2011076027 A1 WO2011076027 A1 WO 2011076027A1
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WO
WIPO (PCT)
Prior art keywords
stator
stator core
strip
shaped
winding
Prior art date
Application number
PCT/CN2010/077243
Other languages
English (en)
French (fr)
Inventor
张旭
Original Assignee
中山大洋电机制造有限公司
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
Priority claimed from CN 200910266590 external-priority patent/CN102111021B/zh
Priority claimed from CN2009202957163U external-priority patent/CN201590693U/zh
Priority claimed from CN2009202957159U external-priority patent/CN201590692U/zh
Application filed by 中山大洋电机制造有限公司 filed Critical 中山大洋电机制造有限公司
Publication of WO2011076027A1 publication Critical patent/WO2011076027A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/325—Windings characterised by the shape, form or construction of the insulation for windings on salient poles, such as claw-shaped poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation

Definitions

  • the invention relates to a stator structure of an electric machine.
  • the volume of the stator groove of the full-circle stator is not large, due to the limitation of the stator slot
  • the volume, the stator coil winding winding in the stator slot has a low tank full rate, resulting in low motor efficiency and poor performance
  • 2) for a full-circle stator without a variety and specifications, the overall mold opening There are many materials used, and it is necessary to develop production molds of different specifications.
  • the versatility is not strong, the development cost is high, and it is difficult to meet the expansion requirements of motors of different varieties and different powers.
  • An object of the present invention is to provide a motor stator structure which has high work efficiency, good performance, low cost, and high versatility.
  • the stator structure of the motor comprises a stator core, an end insulation, a stator slot paper and a stator winding, the stator slot paper is arranged in the stator slot of the stator core, and the end insulation is arranged on both end faces of the stator core
  • the stator winding is wound around the end insulation, the stator core is a strip-shaped stator core, and the strip-shaped stator core is bent into a ring-shaped shape inside the cylindrical side wall, and the annular strip-shaped stator core
  • the outer wall has an interference fit with the cylindrical side wall.
  • the cylindrical side wall described above is disposed on the drum casing or the cast aluminum end cover or the tension end cover, and the annular strip stator core and the cylindrical side wall are tightly fitted by press fitting or hot sleeve manner. together.
  • a groove is arranged at one end of the strip-shaped stator core, and a bump is arranged at the other end.
  • the protrusion is fitted into the groove, and the strip-shaped stator core is bent into an annular shape.
  • the strip stator core described above comprises a plurality of units each having a tooth portion and a yoke a yoke portion of the adjacent unit is connected and has a joint portion. After the strip stator core is bent into an annular shape, the joint portion is changed outward, and the outer edge of the yoke portion is interposed with the cylindrical side wall. Cooperate.
  • the end insulation described above includes an upper end insulation and a lower end insulation, and the upper end insulation and the lower end insulation are combined by a plurality of unitary insulating members mounted on both end faces of the strip stator core.
  • a plurality of connectors are disposed on the side wall of each of the single insulating members adjacent to the stator slots, and the upper end insulated connector and the lower end insulated connector are engaged to fix the stator slot paper.
  • the plurality of connectors described above are symmetrically distributed on both sides of the teeth of the strip stator core.
  • a plurality of positioning rods for fixing the PCB wiring board are protruded upward at the outer edge of the upper end insulating single insulating member as described above.
  • the groove for the winding of the stator winding is provided inwardly, and the winding of the stator winding is provided on the wall surface of the groove.
  • the notch, the number of grooves is equal to the number of phases of the motor.
  • the strip-shaped stator core described above exhibits a "V"-shaped recess in the outer middle position of the stator slot paper in the stator slot in the naturally unfolded state, and the "V"-shaped recess faces the strip-shaped stator core After the indentation, the strip-shaped stator core is rounded, the "V"-shaped notches are closed, and the drum casing is a fine-drawn steel pipe or an aluminum casing or a cylindrical casing formed by rolling a steel plate.
  • the advantages and significant effects of the present invention compared with the prior art are: 1) a structure in which a strip-shaped stator core is combined with a drum casing or a cast aluminum end cap or a tensioned end cap, and in a naturally expanded state thereof, The winding winding volume of the stator slot is increased, the slot full rate is improved, the strip stator core winding is convenient, the production process is good, the motor working efficiency is greatly improved, the motor performance is very good; 2) for the unused varieties In the specification of the stator, the strip stator core is called by a plurality of punching sheets, and the consumables of the punching sheet save material compared with the punch of the full-circular stator core, thereby reducing the cost, and the overall mold opening die material is less.
  • the insulating member can be used for the stator core of different laminated thicknesses, and only the stator paper is extended, the thickness of the single insulating member is not changed, the versatility is strong, and the single cylinder is practical.
  • Figure 1 is a perspective view of a strip stator and a drum casing in accordance with the present invention.
  • Figure 2 is a schematic view of the explosion of Figure 1.
  • Figure 3 is a plan view of the strip stator core and the drum casing.
  • Figure 4 is an enlarged view of A-A in Figure 3.
  • Figure 5 is a perspective view of the strip stator mated with the cast aluminum end cap in the present invention.
  • Figure 6 is a schematic view of the explosion of Figure 5.
  • Figure 7 is a plan view of the strip stator core and the cast aluminum end cap.
  • Figure 8 is an enlarged view of B-B in Figure 7.
  • Figure 9 is a perspective view of the strip stator mated with the stretched end cap in the present invention.
  • Figure 10 is a schematic exploded view of Figure 9.
  • Figure 11 is a plan view of the strip stator core mated with the tensioned end cap.
  • Figure 12 is an enlarged view of C-C in Figure 11.
  • Fig. 13 is a schematic view showing the natural unfolded state of the strip stator core and the stator groove paper in the present invention.
  • Figure 14 is a structural view showing a single-insulation insulating member of the upper end portion in the present invention.
  • Figure 15 is another perspective view of Figure 14.
  • Figure 16 is a structural view showing a single-insulation insulating member at the lower end portion in the present invention.
  • Figure 17 is another perspective view of Figure 16.
  • FIG. 13 a stator structure of a motor includes a stator core 1, an end insulation, a stator slot paper 2, and a stator winding, and the stator slot paper 2 is mounted.
  • the stator slot 3 of the stator core 1 the end portions are insulated on both end faces of the stator core 1, the stator windings are wound around the end insulation, and the drum casing is mounted on the outer edge of the stator core 1.
  • the stator core adopts a strip-shaped stator core, and the strip-shaped stator core 1 is bent into an annular shape and is installed inside the cylindrical side wall 4 of the drum casing, and the outer wall and the circle of the annular strip-shaped stator core 1
  • the cylindrical side wall 4 has an interference fit.
  • the annular strip-shaped stator core 1 and the cylindrical side wall 4 of the drum casing are tightly fitted by press fitting or hot-sleeve; the strip-shaped stator core 1 is provided with a groove 14 at one end and the other end.
  • the strip stator core 1 comprises a plurality of units 11, each unit 11 having a tooth portion and a yoke
  • the yoke portions of the adjacent units 11 are connected and have a joint portion 12, and after the strip-shaped stator core 1 is bent into an annular shape, the joint portion 12 is changed outward, and the outer edge of the yoke portion is at the intermediate position 5 and the cylinder
  • the through-wall interference fit forms a through hole 13 in the inner side of the joint portion 12;
  • the drum casing may be a precision-drawn steel pipe, or an aluminum casing or a cylindrical casing formed by rounding a steel plate.
  • the end insulation includes an upper end insulation 6 and a lower end insulation 7, and the upper end insulation 6 and the lower end insulation 7 are each a plurality of single insulations installed on both end faces of the strip stator core 1.
  • the upper end insulation 6 and the lower end insulation 7 are each a plurality of single insulations installed on both end faces of the strip stator core 1.
  • a plurality of connectors are provided on the side wall of each of the unitary insulating members close to the stator slot 3, and the connector 62 of the upper end insulation 6 is insulated from the lower end portion 7
  • the stator slot paper 2 is clamped between the connectors 72; the plurality of connectors are symmetrically distributed on both sides of the tooth portion of the strip stator core; at the outer edge of the single insulator 61 of the upper end insulation 6 a plurality of positioning rods 63 for fixing the PCB circuit board are protruded;
  • a groove 73 for winding the winding wire of the stator winding is provided in the outer wall of the single insulating member 71 of the lower end insulation 7 in the groove
  • a notch 74 for the stator winding winding is provided inwardly on the wall of the 73, and the number of the grooves 73 is equal to the number of phases of the motor.
  • the strip stator core exhibits a "V" shaped recess in the outer middle position of the stator slot paper in the stator slot in the naturally unfolded state, and the "V" shaped recess faces the strip stator.
  • the core is indented; as shown in Fig. 2 and Fig. 3, after the strip stator core is wound, the "V" shaped notches are closed.
  • a stator structure of the motor includes a stator core 1, an end insulation, a stator slot paper 2, and a stator winding, and the stator slot paper 2 is mounted.
  • the stator slot 3 of the stator core 1 the end portions are insulated on both end faces of the stator core 1, the stator windings are wound around the end insulation, and the cast aluminum end is mounted on the outer edge of the stator core 1.
  • the stator core adopts a strip-shaped stator core
  • the strip-shaped stator core 1 is bent into a ring-shaped cylindrical side wall of the cast aluminum end cover 4, the outer wall of the annular strip-shaped stator core 1 is interference-fitted with the cylindrical side wall 4 of the cast aluminum end cap.
  • the annular strip-shaped stator core 1 and the cylindrical side wall 4 of the cast aluminum end cover are tightly fitted together by press fitting or hot-sleeve;
  • the strip-shaped stator core 1 is provided with a groove 14 at one end and the other end
  • a bump 15 is provided, the bump 15 is fitted into the groove 14, and the strip stator core 1 is bent into a ring shape;
  • the strip stator core 1 comprises a plurality of units 11, each unit 11 having a tooth portion and The yoke portion, the yoke portions of the adjacent units 11 are connected and have a joint portion 12, and after the strip stator core 1 is bent into an annular shape, the joint portion 12 is changed outward, and the outer edge of the yoke portion is at the intermediate position 5 and the circle
  • the tubular side wall 4 has an interference fit, and a through hole 13 is formed inside the joint portion 12; on the outer side wall of the cylindrical side wall 4, a plurality of circumferentially evenly mounted mounting legs 8 are provided, the cast aluminum The bottom of the end
  • the end insulation consists of the upper end insulation 6 and the lower end insulation 7 , the upper end insulation
  • the lower end insulation 7 is formed by combining a plurality of single insulating members mounted on both end faces of the strip stator core 1; as can be seen from FIGS. 14 to 17, each of the single insulating members is adjacent to the stator slot.
  • the side wall of the 3 is provided with a plurality of connectors, and the stator slot paper 2 is clamped between the connector 62 of the upper end insulation 6 and the connector 72 of the lower end insulation 7; a plurality of connectors are symmetrically distributed at two Two sides of the tooth portion of the strip-shaped stator core; a plurality of positioning rods 63 for fixing the PCB circuit board are protruded upward at the outer edge of the unitary insulating member 61 of the upper end insulating portion 6;
  • the outer wall of the body insulating member 71 is provided with a groove 73 for winding the winding of the stator winding, and a notch 74 for the winding of the winding of the stator wire is provided in the wall surface of the groove 73
  • the strip stator core exhibits a "V" shaped recess in the outer middle position of the stator slot paper in the stator slot in the naturally unfolded state, and the "V" shaped recess faces the strip stator.
  • the core is indented; as shown in Fig. 6 and Fig. 7, after the strip stator core is wound, the "V" shaped recess is closed.
  • a motor stator structure including a stator core 1 , an end insulation, a stator slot paper 2 and a stator winding, and a stator slot paper 2
  • the stator core 3 is disposed in the stator slot 3, the end portions are insulated on both end faces of the stator core 1, and the stator windings are wound around the end insulation, and the outer edge of the stator core 1 is stretched.
  • the stator core With a strip-shaped stator core, the strip-shaped stator core 1 is bent into an annular shape and mounted inside the cylindrical side wall 4 of the tensile end cap, the outer wall of the annular strip-shaped stator core 1 and the end of the tensile end cap
  • the cylindrical side wall 4 has an interference fit.
  • the annular strip-shaped stator core 1 and the cylindrical side wall 4 of the tensile end cover are closely fitted together by press fitting or hot-sleeve; the strip-shaped stator core 1 is provided with a groove 14 at one end and the other end. A bump 15 is provided, the bump 15 is engaged with the groove 14 , and the strip stator core 1 is bent into an annular shape; the strip stator core 1 includes a plurality of units 11 each having a tooth portion And the yoke portion, the yoke portion of the adjacent unit 11 is connected and has a joint portion 12, after the strip stator core 1 is bent into an annular shape, the joint portion 12 is changed outward, and the outer edge intermediate position 5 of the yoke portion is
  • the cylindrical side wall 4 has an interference fit, and a through hole 13 is formed inside the joint portion 12; the stretched end cover may be a finely formed steel cover or a copper cover.
  • the end insulation includes an upper end insulation 6 and a lower end insulation 7, and the upper end insulation 6 and the lower end insulation 7 are each a plurality of single insulations mounted on both end faces of the strip stator core 1.
  • the upper end insulation 6 and the lower end insulation 7 are each a plurality of single insulations mounted on both end faces of the strip stator core 1.
  • a plurality of connectors are provided on the side wall of each of the unitary insulating members close to the stator slot 3, and the connector 62 of the upper end insulation 6 is insulated from the lower end portion 7
  • the stator slot paper 2 is clamped between the connectors 72; the plurality of connectors are symmetrically distributed on both sides of the tooth portion of the strip stator core; at the outer edge of the single insulator 61 of the upper end insulation 6 a plurality of positioning rods 63 for fixing the PCB circuit board are protruded;
  • a groove 73 for winding the winding wire of the stator winding is provided in the outer wall of the single insulating member 71 of the lower end insulation 7 in the groove
  • a notch 74 for the stator winding winding is provided inwardly on the wall of the 73, and the number of the grooves 73 is equal to the number of phases of the motor.
  • the strip stator core exhibits a "V" shaped recess in the outer middle position of the stator slot paper in the stator slot in the naturally unfolded state, and the "V" shaped recess faces the strip stator.
  • the core is indented; as shown in Fig. 10 and Fig. 11, after the strip stator core is wound, the "V" shaped recess is closed.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Description

一种电机定子结构 技术领域：
本发明涉及一种电机定子结构。
背景技术：
目前， 绝大多数电机都采用常规的整圓定子结构， 通过其整圓定子铁芯 外壁与滚筒机壳内壁过盈配合， 或者与铸铝端盖或拉伸端盖的内壁过盈配 合， 将整圓定子和滚筒机壳或铸铝端盖或拉伸端盖连接在一起， 采用这种结 构方式， 存在如下问题： 1 )整圓定子的定子槽的容积不大， 因受限于定子 槽的容积， 定子线圏绕组绕制在定子槽里的槽满率较低， 致使电机工作效率 较低， 性能较差； 2 )对于不用品种、 规格的整圓定子来说， 其整体开模模 具用料较多， 需要开发不同规格的生产模具， 通用性不强， 开发成本高， 难 以满足不同品种、 不同功率的电机的扩展需求。
发明内容：
本发明的目的在于提供一种工作效率高、 性能好、 低成本、 通用性较强 的电机定子结构。
本发明的目的是通过以下的技术方案予以实现的。
一种电机定子结构， 包括定子铁芯、 端部绝缘、 定子槽纸和定子线圏绕 组， 定子槽纸装设在定子铁芯的定子槽内， 端部绝缘设置在定子铁芯的两端 面上， 定子线圏绕组缠绕在端部绝缘上， 该定子铁芯采用条形定子铁芯， 条 形定子铁芯弯曲成圓环状套装在圓筒形侧壁里面， 圓环状条形定子铁芯外壁 与圓筒形侧壁过盈配合。
上述所述的圓筒形侧壁设置在滚筒机壳或者铸铝端盖或者拉伸端盖上， 圓环状条形定子铁芯与圓筒形侧壁通过压装或者热套方式紧密配合在一起。
在上述所述的条形定子铁芯的一端设有凹槽， 另一端设有凸块， 该凸块 与凹槽相嵌配合， 条形定子铁芯弯曲成圓环状。
上述所述的条形定子铁芯包括若干个单元，每个单元含有一个齿部和轭 部，相邻单元的轭部连接起来并具有结合部，条形定子铁芯弯曲成圓环状后， 结合部往外换起， 所述轭部的外缘中间位置与圓筒形侧壁过盈配合。
上述所述的端部绝缘包括上端部绝缘和下端部绝缘， 上端部绝缘、 下端 部绝缘都是由若干个装设在条形定子铁芯两端面上的单体绝缘件组合成型 的。
在上述所述的每个单体绝缘件靠近定子槽的侧壁上设有若干个接插件， 上端部绝缘的接插件与下端部绝缘的接插件之间卡接固定住定子槽纸。
上述所述的若干个接插件两两对称分布在条形定子铁芯的齿部两侧。 在上述所述的上端部绝缘的单体绝缘件的外侧边沿处往上凸起若干支 用于固定 PCB线路板的定位杆。
在上述所述的下端部绝缘的单体绝缘件的外壁上往内设置有供定子线 圏绕组过线用的凹槽，在凹槽的壁面上往内设置有供定子线圏绕组跨线用的 缺口， 凹槽的数量等于电机的相数。
上述所述的条形定子铁芯在自然展开状态下，位于其定子槽内的定子槽 纸的外侧中间位置呈现出一个 "V" 形凹口， "V" 形凹口朝条形定子铁芯内 陷， 条形定子铁芯卷圓后， "V" 形凹口被合拢， 滚筒机壳是精拉成型的钢管 或者是铝材壳体或者是通过钢板卷圓成型的圓筒壳体。
本发明与现有技术相比具有的优点及显著效果是： 1 )采用条形定子铁 芯与滚筒机壳或铸铝端盖或拉伸端盖配合的结构， 在其自然展开状态下， 增 大了定子槽内线圏绕组容积， 提高了槽满率， 且条形定子铁芯绕线方便， 生 产工艺性好， 电机工作效率得到很大的提高， 电机性能非常好； 2 )对于不 用品种、 规格的定子来说， 条形定子铁芯由多个沖片叠合而称， 沖片的耗材 相对整圓定子铁芯的沖片节省材料， 降低成本， 整体开模模具用料较少， 且 通用性极强， 可以适用不同直径的多种规格， 开发成本低， 极大满足了不同 品种、 不同功率的电机的扩展需求； 3 )装设在条形定子铁芯两端面上的单 体绝缘件可用于不同叠层厚度的定子铁芯， 只需延长定子槽纸即可， 无需改 变单体绝缘件的厚度尺寸， 通用性强， 筒单实用。 附图说明：
图 1 是本发明中条形定子与滚筒机壳配合的立体图。
图 2 是图 1的爆炸示意图。
图 3 是条形定子铁芯与滚筒机壳配合的平面示意图。
图 4 是图 3中 A-A的放大图。
图 5 是本发明中条形定子与铸铝端盖配合的立体图。
图 6 是图 5的爆炸示意图。
图 7 是条形定子铁芯与铸铝端盖配合的平面示意图。
图 8 是图 7中 B-B的放大图。
图 9 是本发明中条形定子与拉伸端盖配合的立体图。
图 10 是图 9的爆炸示意图。
图 11 是条形定子铁芯与拉伸端盖配合的平面示意图。
图 12 是图 11中 C-C的放大图。
图 1 3 是本发明中条形定子铁芯与定子槽纸的自然展开状态示意图。 图 14 是本发明中上端部绝缘的单体绝缘件的结构图。
图 15 是图 14的另一角度示意图。
图 16 是本发明中下端部绝缘的单体绝缘件的结构图。
图 17 是图 16的另一角度示意图。
具体实施方式：
下面通过具体实施例并结合附图对本发明作进一步详细的描述。
实施例 1
由图 1、 图 2、 图 3、 图 4、 图 1 3可知， 一种电机定子结构， 包括定子 铁芯 1、 端部绝缘、 定子槽纸 2和定子线圏绕组， 定子槽纸 2装设在定子铁 芯 1的定子槽 3内， 端部绝缘设置在定子铁芯 1的两端面上， 定子线圏绕组 缠绕在端部绝缘上， 在定子铁芯 1的外缘装设有滚筒机壳， 该定子铁芯采用 条形定子铁芯，条形定子铁芯 1弯曲成圓环状装设在滚筒机壳的圓筒形侧壁 4里面， 圓环状条形定子铁芯 1外壁与圓筒形侧壁 4过盈配合。 其中圓环状条形定子铁芯 1与滚筒机壳的圓筒形侧壁 4通过压装或者热 套方式紧密配合在一起；条形定子铁芯 1的一端设有凹槽 14 , 另一端设有凸 块 15 , 凸块 15与凹槽 14相嵌配合， 条形定子铁芯 1弯曲成圓环状； 条形定 子铁芯 1包括若干个单元 11 , 每个单元 11含有一个齿部和轭部， 相邻单元 11的轭部连接起来并具有结合部 12 , 条形定子铁芯 1弯曲成圓环状后， 结 合部 12往外换起， 所述轭部的外缘中间位置 5与圓筒形侧壁过盈配合， 在 结合部 12内侧形成一个通孔 1 3; 滚筒机壳可以是精拉成型的钢管， 也可以 是铝材壳体或者是通过钢板卷圓成型的圓筒壳体。
如图 2所示， 端部绝缘包括上端部绝缘 6和下端部绝缘 7 , 上端部绝缘 6、 下端部绝缘 7都是由若干个装设在条形定子铁芯 1两端面上的单体绝缘 件组合成型的； 结合图 14至图 17可知， 在每个单体绝缘件靠近定子槽 3的 侧壁上设有若干个接插件， 靠上端部绝缘 6的接插件 62与下端部绝缘 7的 接插件 72之间卡接固定住定子槽纸 2 ;若干个接插件两两对称分布在条形定 子铁芯的齿部两侧； 在上端部绝缘 6的单体绝缘件 61的外侧边沿处往上凸 起若干支用于固定 PCB线路板的定位杆 63; 在下端部绝缘 7的单体绝缘件 71的外壁上往内设置有供定子线圏绕组过线用的凹槽 73 ,在凹槽 73的壁面 上往内设置有供定子线圏绕组跨线用的缺口 74 , 凹槽 73的数量等于电机的 相数。
由图 1 3可知， 条形定子铁芯在自然展开状态下， 位于其定子槽内的定 子槽纸的外侧中间位置呈现出一个 "V" 形凹口， "V" 形凹口朝条形定子铁 芯内陷； 如图 2、 图 3所示， 条形定子铁芯卷圓后， "V" 形凹口被合拢。
实施例 2
由图 5、 图 6、 图 7、 图 8、 图 1 3可知， 一种电机定子结构， 包括定子 铁芯 1、 端部绝缘、 定子槽纸 2和定子线圏绕组， 定子槽纸 2装设在定子铁 芯 1的定子槽 3内， 端部绝缘设置在定子铁芯 1的两端面上， 定子线圏绕组 缠绕在端部绝缘上， 在定子铁芯 1的外缘装设有铸铝端盖， 该定子铁芯采用 条形定子铁芯，条形定子铁芯 1弯曲成圓环状装设在铸铝端盖的圓筒形侧壁 4里面， 圓环状条形定子铁芯 1外壁与铸铝端盖的圓筒形侧壁 4过盈配合。 其中圓环状条形定子铁芯 1与铸铝端盖的圓筒形侧壁 4通过压装或者热 套方式紧密配合在一起；条形定子铁芯 1的一端设有凹槽 14 , 另一端设有凸 块 15 , 凸块 15与凹槽 14相嵌配合， 条形定子铁芯 1弯曲成圓环状； 条形定 子铁芯 1包括若干个单元 11 , 每个单元 11含有一个齿部和轭部， 相邻单元 11的轭部连接起来并具有结合部 12 , 条形定子铁芯 1弯曲成圓环状后， 结 合部 12往外换起， 所述轭部的外缘中间位置 5与圓筒形侧壁 4过盈配合， 在结合部 12内侧形成一个通孔 1 3; 在圓筒形侧壁 4的外侧壁上设置有若干 个周向均布且开有安装孔的安装脚 8 , 铸铝端盖的底部布满散热筋 9。
如图 6所示， 端部绝缘包括上端部绝缘 6和下端部绝缘 7 , 上端部绝缘
6、 下端部绝缘 7都是由若干个装设在条形定子铁芯 1两端面上的单体绝缘 件组合成型的； 结合图 14至图 17可知， 在每个单体绝缘件靠近定子槽 3的 侧壁上设有若干个接插件， 靠上端部绝缘 6的接插件 62与下端部绝缘 7的 接插件 72之间卡接固定住定子槽纸 2 ;若干个接插件两两对称分布在条形定 子铁芯的齿部两侧； 在上端部绝缘 6的单体绝缘件 61的外侧边沿处往上凸 起若干支用于固定 PCB线路板的定位杆 63; 在下端部绝缘 7的单体绝缘件 71的外壁上往内设置有供定子线圏绕组过线用的凹槽 73 ,在凹槽 73的壁面 上往内设置有供定子线圏绕组跨线用的缺口 74 , 凹槽 73的数量等于电机的 相数。
由图 1 3可知， 条形定子铁芯在自然展开状态下， 位于其定子槽内的定 子槽纸的外侧中间位置呈现出一个 "V" 形凹口， "V" 形凹口朝条形定子铁 芯内陷； 如图 6、 图 7所示， 条形定子铁芯卷圓后， "V" 形凹口被合拢。
实施例 3
由图 9、 图 1 0、 图 11、 图 12、 图 1 3可知， 一种电机定子结构， 包括定 子铁芯 1、 端部绝缘、 定子槽纸 2和定子线圏绕组， 定子槽纸 2装设在定子 铁芯 1的定子槽 3内， 端部绝缘设置在定子铁芯 1的两端面上， 定子线圏绕 组缠绕在端部绝缘上， 在定子铁芯 1的外缘装设有拉伸端盖， 该定子铁芯采 用条形定子铁芯，条形定子铁芯 1弯曲成圓环状装设在拉伸端盖的圓筒形侧 壁 4里面，圓环状条形定子铁芯 1外壁与拉伸端盖的圓筒形侧壁 4过盈配合。
其中圓环状条形定子铁芯 1与拉伸端盖的圓筒形侧壁 4通过压装或者热 套方式紧密配合在一起；条形定子铁芯 1的一端设有凹槽 14 , 另一端设有凸 块 15 , 凸块 15与凹槽 14相嵌扣合 ， 条形定子铁芯 1弯曲成圓环状； 条形 定子铁芯 1包括若干个单元 11 , 每个单元 11含有一个齿部和轭部， 相邻单 元 11的轭部连接起来并具有结合部 12 , 条形定子铁芯 1弯曲成圓环状后， 结合部 12往外换起， 所述轭部的外缘中间位置 5与圓筒形侧壁 4过盈配合， 在结合部 12内侧形成一个通孔 1 3; 拉伸端盖可以是精拉成型的钢材盖体或 者是铜质盖体。
如图 10所示，端部绝缘包括上端部绝缘 6和下端部绝缘 7 ,上端部绝缘 6、 下端部绝缘 7都是由若干个装设在条形定子铁芯 1两端面上的单体绝缘 件组合成型的； 结合图 14至图 17可知， 在每个单体绝缘件靠近定子槽 3的 侧壁上设有若干个接插件， 靠上端部绝缘 6的接插件 62与下端部绝缘 7的 接插件 72之间卡接固定住定子槽纸 2 ;若干个接插件两两对称分布在条形定 子铁芯的齿部两侧； 在上端部绝缘 6的单体绝缘件 61的外侧边沿处往上凸 起若干支用于固定 PCB线路板的定位杆 63; 在下端部绝缘 7的单体绝缘件 71的外壁上往内设置有供定子线圏绕组过线用的凹槽 73 ,在凹槽 73的壁面 上往内设置有供定子线圏绕组跨线用的缺口 74 , 凹槽 73的数量等于电机的 相数。
由图 1 3可知， 条形定子铁芯在自然展开状态下， 位于其定子槽内的定 子槽纸的外侧中间位置呈现出一个 "V" 形凹口， "V" 形凹口朝条形定子铁 芯内陷； 如图 10、 图 11所示， 条形定子铁芯卷圓后， "V" 形凹口被合拢。

Claims

权 利 要 求
1. 一种电机定子结构， 包括定子铁芯、 端部绝缘、 定子槽纸和定子线圏绕 组， 定子槽纸装设在定子铁芯的定子槽内， 端部绝缘设置在定子铁芯的 两端面上， 定子线圏绕组缠绕在端部绝缘上， 其特征在于： 该定子铁芯 采用条形定子铁芯，条形定子铁芯弯曲成圓环状套装在圓筒形侧壁里面， 圓环状条形定子铁芯外壁与圓筒形侧壁过盈配合。
2. 根据权利要求 1所述的一种电机定子结构， 其特征在于： 所述的圓筒形 侧壁设置在滚筒机壳或者铸铝端盖或者拉伸端盖上， 圓环状条形定子铁 芯与圓筒形侧壁通过压装或者热套方式紧密配合在一起。
3. 根据权利要求 2所述的一种电机定子结构， 其特征在于： 在条形定子铁 芯的一端设有凹槽， 另一端设有凸块， 该凸块与凹槽相嵌配合， 条形定 子铁芯弯曲成圓环状。
4. 根据权利要求 3所述的一种电机定子结构， 其特征在于： 条形定子铁芯 包括若干个单元， 每个单元含有一个齿部和轭部， 相邻单元的轭部连接 起来并具有结合部， 条形定子铁芯弯曲成圓环状后， 结合部往外换起， 所述轭部的外缘中间位置与圓筒形侧壁过盈配合。
5. 根据权利要求 1、 2、 3或 4所述的一种电机定子结构， 其特征在于： 端 部绝缘包括上端部绝缘和下端部绝缘， 上端部绝缘、 下端部绝缘都是由 若干个装设在条形定子铁芯两端面上的单体绝缘件组合成型的。
6. 根据权利要求 5所述的一种电机定子结构， 其特征在于： 在每个单体绝 缘件靠近定子槽的侧壁上设有若干个接插件， 上端部绝缘的接插件与下 端部绝缘的接插件之间卡接固定住定子槽纸。
7. 根据权利要求 6所述的一种电机定子结构， 其特征在于： 若干个接插件 两两对称分布在条形定子铁芯的齿部两侧。
8. 根据权利要求 7所述的一种电机定子结构， 其特征在于： 在上端部绝缘 的单体绝缘件的外侧边沿处往上凸起若干支用于固定 PCB线路板的定位 杆。
9. 根据权利要求 8所述的一种电机定子结构， 其特征在于： 在下端部绝缘 的单体绝缘件的外壁上往内设置有供定子线圏绕组过线用的凹槽， 在凹 槽的壁面上往内设置有供定子线圏绕组跨线用的缺口， 凹槽的数量等于 电机的相数。
10. 根据权利要求 9所述的一种电机定子结构， 其特征在于： 所述条形定 子铁芯在自然展开状态下， 位于其定子槽内的定子槽纸的外侧中间位置 呈现出一个 "V" 形凹口， "V" 形凹口朝条形定子铁芯内陷， 条形定子铁 芯卷圓后， "V" 形凹口被合拢， 滚筒机壳是精拉成型的钢管或者是铝材 壳体或者是通过钢板卷圓成型的圓筒壳体。
PCT/CN2010/077243 2009-12-24 2010-09-24 一种电机定子结构 WO2011076027A1 (zh)

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