WO2015070547A1 - 一种内嵌永磁体的转子结构及其电机和装配结构 - Google Patents

一种内嵌永磁体的转子结构及其电机和装配结构 Download PDF

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Publication number
WO2015070547A1
WO2015070547A1 PCT/CN2014/072711 CN2014072711W WO2015070547A1 WO 2015070547 A1 WO2015070547 A1 WO 2015070547A1 CN 2014072711 W CN2014072711 W CN 2014072711W WO 2015070547 A1 WO2015070547 A1 WO 2015070547A1
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WIPO (PCT)
Prior art keywords
magnetic isolation
rotor
circumferential angle
rotor core
sides
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PCT/CN2014/072711
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English (en)
French (fr)
Inventor
潘明攀
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中山大洋电机制造有限公司
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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 WO2015070547A1 publication Critical patent/WO2015070547A1/zh
Priority to US15/150,401 priority Critical patent/US10298077B2/en

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Classifications

    • 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
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K29/00Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Definitions

  • the utility model relates to a rotor structure with embedded permanent magnets and an assembly structure and a motor of the stator and the rotor applied thereto.
  • the existing rotor structure with embedded permanent magnets includes a rotor core and a plurality of permanent magnets, and a shaft hole is arranged in the middle of the rotor core, and four card slots are arranged on the outer side of the shaft hole, and the permanent magnet is installed in the card slot. , two opposite card slots, on each side of each card slot, a first magnetic isolation groove is arranged on the rotor core, and the other two opposite card slots are on both sides of each card slot and on the rotor core The second magnetic isolation groove is provided.
  • the purpose of the utility model is to provide a rotor structure with embedded permanent magnets and an assembly structure and a motor of the stator and the rotor, and the rotor structure is simple and easy to install, and reduces the fluctuation of the cogging and the torque fluctuation during the driving process. It is beneficial to the smooth running of the motor and reduces the noise.
  • the assembly structure of the stator and the rotor is simple, the installation is convenient, the magnetic field utilization rate is high, the vibration and noise during operation are small, the motor structure is simple, the operation reliability is high, and the noise is small.
  • a rotor structure with a permanent magnet embedded therein comprising a rotor core and a plurality of permanent magnets, wherein a shaft hole for mounting a rotating shaft is arranged in the middle of the rotor core, and four card slots are arranged on the outer side of the shaft hole, and the permanent magnet is installed at Inside the card slot, two adjacent card slots, on each side of each card slot, a first magnetic isolation slot is disposed on the rotor core, and the first magnetic isolation slot communicates with the card slot, located in the same "" a circumferential angle A formed between the two first magnetic isolation grooves on the side, the remaining two adjacent card slots, a second magnetic isolation groove on the rotor core, and a second magnetic isolation on the rotor core The groove is in communication with the card slot, and the circumferential angle B formed between the two second magnetic isolation grooves on both sides of the same "C" is not equal to the circumferential angle B.
  • the circumferential angle A formed between the two first magnetic isolation grooves on both sides of the same "" Cao The range is between 70° and 80°, and the circumferential angle B formed between the two second magnetic isolation grooves on both sides of the same "" slot is 55. To 65. between.
  • the rotor core described above includes an upper rotor core and a lower rotor core, and the upper rotor core and the lower rotor core are 180 in phase. Stacked and mounted together, the first magnetic isolation groove of the upper rotor core communicates with the second magnetic isolation groove of the lower rotor core, the second magnetic isolation groove of the upper rotor core and the first magnetic isolation groove of the lower rotor core Connected.
  • a mounting hole is disposed on the outer side of the card slot and the rotor core, and a card block is disposed on both sides of the inner wall of the card slot, and the permanent magnet is installed in the card slot and located between the two card blocks.
  • An assembly structure of a stator and a rotor comprising a stator core, a rotor core and a plurality of permanent magnets, wherein the stator core is nested outside the rotor core, and a shaft hole for mounting the shaft is arranged in the middle of the rotor core, and the shaft hole is There are four card slots on the outer side hooks, and the permanent magnets are installed in the card slots.
  • the magnetic groove is connected with the card slot, and the circumferential angle A formed between the two first magnetic isolation grooves on both sides of the same "C", the remaining two adjacent card slots, on both sides of each card slot, the rotor iron A second magnetic isolation groove is disposed on the core, the second magnetic isolation groove is in communication with the card slot, and a circumferential angle B formed between the two second magnetic isolation grooves on both sides of the same card slot, the circumferential angle A and the circumferential angle B are not equal .
  • the circumferential angle A formed between the two first magnetic isolation grooves on both sides of the same "" Cao is in the range of 70° to 80°, and the two sides on the same ""
  • the circumferential angle B formed between the two magnetic isolation grooves is in the range of 55. To 65. between.
  • the circumferential angle B formed between the two second magnetic isolation grooves on the same "" Cao side is 59. 5
  • the stator core described above is provided with 24 welt grooves, and the circumferential angle A minus the circumference Angle B is equal to 360. Divide by the number of ruled slots.
  • Two slots are disposed on the outer side of the card slot and the rotor core, and the center line of the two slots passes through the center of the shaft hole to form a first bisector and a second bisector, a first bisector and a Two bisectors
  • the circumferential angle A and the circumferential angle B are divided into three equal parts.
  • a motor comprising a rotating shaft, a rotor assembly, a stator assembly and a casing assembly, the rotor assembly is mounted on the rotating shaft, the stator assembly is nested outside the rotor assembly, a cavity is arranged in the middle of the casing assembly, and the stator assembly and the rotor assembly are mounted in the cavity
  • the rotor assembly includes a rotor core and a plurality of permanent magnets, and a shaft hole for mounting a rotating shaft is disposed in the middle of the rotor core, and four card slots are arranged on the outer side of the shaft hole, and the permanent magnet is installed in the card slot.
  • a first magnetic isolation slot is disposed on the rotor core, and the first magnetic isolation slot communicates with the card slot, located on both sides of the same "" slot a circumferential angle A formed between the two first magnetic isolation grooves, the remaining two adjacent card slots, a second magnetic isolation groove on each side of each of the card slots, and a second magnetic isolation groove
  • the card slot is connected, and the circumferential angle B formed between the two second magnetic isolation grooves on both sides of the same "C" is not equal to the circumferential angle B.
  • the utility model has the following effects: 1) a shaft hole for mounting a rotating shaft is arranged in the middle of the rotor core, and four card slots are arranged on the outer side of the shaft hole, and the permanent magnet is installed in the card slot , wherein two adjacent card slots, on both sides of each card slot, a first magnetic isolation groove is disposed on the rotor core, the first magnetic isolation groove is connected with the card slot, and the other two adjacent card slots are A second magnetic isolation groove is arranged on both sides of each card slot, and the second magnetic isolation groove is connected with the card slot.
  • the rotor structure is simple and easy to install, and can effectively reduce the cogging and driving process of the cogging.
  • the torque fluctuation is beneficial to the smooth running of the motor and reduces the noise; 2)
  • the circumferential angle A formed between the two first magnetic isolation grooves on both sides of the same "C" is 70. Between 80°, the circumferential angle B formed between the two second magnetic flux barriers located on either side of the same "" slot is at 55. To 65. Between the circumferential angle A and the circumferential angle B, one pitch can effectively reduce the pulsation of the cogging and the torque fluctuation during the driving process, which is beneficial to the smooth running of the motor and reduce the noise; 3)
  • the rotor core includes the upper rotor The iron core and the lower rotor core, the upper rotor core and the lower rotor core are 180 in phase.
  • the card slot A mounting hole is arranged on the outer side and the rotor core for facilitating the installation of the rotor core.
  • a card block is arranged on both sides of the inner wall of the card slot, and the permanent magnet is installed in the card slot and located between the two card blocks. Easy to install, accurate positioning, firm and reliable; 5) Two first compartments on the same "" Cao sides 5 ⁇ The circumferential angle A formed between the magnetic grooves is 74.5.
  • the circumferential angle B formed between the two second magnetic isolation grooves on the same "" Cao is 59.5.
  • the stator core is provided with 24 inlay grooves, through a number of test tests, when the stator core is provided with 24 welt grooves, the circumferential angle A is 74.5. 5 ⁇
  • the circumferential angle B is 59.5.
  • Figure 1 is a perspective view of the utility model
  • Figure 2 is an exploded view of the utility model
  • Figure 3 is a front view of the utility model
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 3;
  • Figure 5 is a perspective view of the second embodiment of the present invention.
  • Embodiment 1 As shown in FIG. 1 to FIG. 4, the utility model relates to a rotor structure with embedded permanent magnets, which comprises a rotor core 1 and a plurality of permanent magnets 2, and a shaft for mounting a rotating shaft is arranged in the middle of the rotor core 1
  • the hole 11 is provided with four card slots 12 on the outer side of the shaft hole 11, and the permanent magnet 2 is mounted in the card slot 12, wherein two adjacent card slots 12, on both sides of each card slot 12, the rotor A first magnetic isolation groove 13 is disposed on the iron core 1, and the first magnetic isolation groove 13 communicates with the card slot 12, and a circumference formed between two first magnetic isolation grooves 13 on both sides of the same "" groove 12 Angle A, the other two adjacent card slots 12, on both sides of each card slot 12, a second magnetic isolation slot 14 is disposed on the rotor core 1, and the second magnetic isolation slot 14 is in communication with the card slot 12 ""
  • the circumferential angle A formed between the two first magnetic flux barriers 1 3 on both sides of the same "" slot 12 is at 70. To 80.
  • the circumferential angle B formed between the two second magnetic flux barriers 14 on the same "" Cao 12 side is in the range of 55. To 65. between.
  • the rotor core 1 includes an upper rotor core 15 and a lower rotor core 16, and an upper rotor core 15 and the lower rotor core 16 are 180 in phase. Stacked and mounted together, the first magnetic isolation groove 13 of the upper rotor core 15 and the second magnetic isolation groove 14 of the lower rotor core 16 communicate with each other, and the second magnetic isolation groove 14 and the lower rotor iron of the upper rotor core 15 The first magnetic isolation groove 13 of the core 16 is in communication.
  • a mounting hole 17 is disposed on the outer side of the card slot 12, and a latching block 121 is disposed on both sides of the inner wall of the card slot 12.
  • the permanent magnet 2 is mounted in the card slot 12 and located between the two card blocks 121.
  • the principle of the utility model is: four card slots 12 are arranged on the outer side of the shaft hole 11, wherein two adjacent card slots 12 are disposed on both sides of each card slot 12 and on the rotor core 1 a magnetic isolation slot 13, the first magnetic isolation slot 13 is in communication with the card slot 12, and the remaining two adjacent card slots 12 are provided with a second magnetic separation on both sides of each of the card slots 12 and on the rotor core 1.
  • the slot 14 and the second magnetic flux barrier 14 are in communication with the card slot 12.
  • Embodiment 2 As shown in FIG. 1 to FIG. 5, the utility model relates to an assembly structure of a stator and a rotor, which comprises a stator core 3, a rotor core 1 and a plurality of permanent magnets 2, and the stator core 3 is nested in the rotor.
  • a shaft hole 11 for mounting a rotating shaft is disposed in the middle of the rotor core 1, and four card slots 12 are disposed on the outer side of the shaft hole 11, and the permanent magnet 2 is mounted in the card slot 12, wherein two phases are Adjacent card slot 12, on each side of each card slot 12, a first magnetic isolation slot 13 is disposed on the rotor core 1, and the first magnetic isolation slot 13 is connected to the card slot 12, and is located in the same "" Cao 12 two a circumferential angle A formed between the two first magnetic isolation slots 13 on the side, and two remaining adjacent slots 12, on both sides of each of the slots 12, and a second magnetic isolation slot on the rotor core 1 14 , the second magnetic flux barrier 14 is in communication with the card slot 12 , and the circumferential angle B formed between the two second magnetic flux barriers 14 on both sides of the same “” slot 12 is not equal to the circumferential angle B.
  • the circumferential angle A formed between the two first magnetic flux barriers 1 3 on both sides of the same "" slot 12 is at 70. To 80.
  • the circumferential angle B formed between the two second magnetic flux barriers 14 on the same "" Cao 12 side is in the range of 55. To 65. between.
  • the circumferential angle A formed between the two first magnetic isolation grooves 13 on both sides of the same "" groove 12 is 74. 5 .
  • the circumferential angle B formed between the two second magnetic isolation grooves 14 on both sides of the same "" Cao 12 is 59.5.
  • the stator core 3 is provided with 24 welt grooves 31, and the circumferential angle A minus the circumferential angle B is equal to 360. Divide by the number of ruled slots 31.
  • Two slots 18 are disposed on the rotor core 1 outside the card slot 12, and the center line 01 of the two slots 18 passes through the center 01 of the shaft hole 11 to form a first bisector A1 and a second bisector A2.
  • the bisector A1 and the second bisector A2 divide the circumferential angle A and the circumferential angle B into three equal parts, respectively.
  • the principle of the utility model is: the stator core 3 is nested outside the rotor core 1, and four card slots 12 are distributed on the outer side of the shaft hole 11, wherein two adjacent card slots 12, at each card A first magnetic isolation slot 13 is disposed on the rotor core 1 on both sides of the slot 12, the first magnetic isolation slot 13 is in communication with the card slot 12, and the remaining two adjacent card slots 12 are in each of the card slots 12. A second magnetic isolation groove 14 is disposed on the rotor core 1 on both sides, and the second magnetic isolation groove 14 is connected to the card slot 12.
  • the structure is simple, easy to install, high in magnetic field utilization, and low in vibration and noise during operation.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

一种内嵌永磁体的转子结构及其电机和装配结构。该转子结构包括转子铁芯(1)和若干永磁体(2)。转子铁芯(1)中间设置有用以安装转轴的轴孔(11)。在轴孔(11)外侧均匀分布有四个卡槽(12)。永磁体(2)安装在卡槽(12)中。其中对于两个相邻的卡槽(12),该两个相邻卡槽(12)中的每个卡槽(12)的两侧在转子铁芯(1)上设置与卡槽(12)相通的第一隔磁槽(13),并且位于同一卡槽(12)两侧的两个第一隔磁槽(13)之间形成圆周角度A。对于另外两个相邻的卡槽(12),该另外两个相邻卡槽(12)中的每个卡槽(12)的两侧在转子铁芯(1)上设置与卡槽(12)相通的第二隔磁槽(14),并且位于同一卡槽(12)两侧的两个第二隔磁槽(14)之间形成圆周角度B。圆周角度A与圆周角度B不相等。该转子结构及其电机和装配结构具有结构简单、安装便捷、能够减小齿槽脉动和驱动过程中的力矩波动的优点从而利于电机平稳运行以及减小噪音。

Description

一种内嵌永磁体的转子结构及其电机和装配结构 技术领域:
本实用新型涉及一种内嵌永磁体的转子结构及其应用的定子和转子的装配 结构和电机。
背景技术:
现有的内嵌永磁体的转子结构, 包括转子铁芯和若干永磁体, 转子铁芯中 间设置有轴孔, 在轴孔的外侧均勾分布有四个卡槽, 永磁体安装在卡槽里面, 其中两个相对的卡槽、 在每个卡槽的两侧、 转子铁芯上设置第一隔磁槽, 其余 两个相对的卡槽、 在每个卡槽的两侧、 转子铁芯上设置第二隔磁槽, 虽然这种 结构筒单, 安装方便, 但反电动势波形与正弦波波形相差较大, 齿槽脉动和驱 动过程中的力矩波动大, 导致振动和噪音加大。
发明内容:
本实用新型的目的是提供一种内嵌永磁体的转子结构及其应用的定子和转 子的装配结构和电机, 该转子结构筒单, 安装方便, 减小齿槽脉动和驱动过程 中的力矩波动, 有利于电机的平稳运行, 减小噪音, 该定子和转子的装配结构 筒单, 安装方便, 磁场利用率高, 运行时振动和噪音小, 该电机结构筒单, 运 行可靠性高, 噪音小。
本实用新型的目的是通过下述技术方案予以实现的。
一种内嵌永磁体的转子结构, 包括转子铁芯和若干永磁体, 转子铁芯中间 设置有用来安装转轴的轴孔, 在轴孔的外侧均勾分布有四个卡槽, 永磁体安装 在卡槽里面, 其中两个相邻的卡槽、 在每个卡槽的两侧、 转子铁芯上设置第一 隔磁槽, 第一隔磁槽与卡槽连通, 位于同一"" ^槽两侧的两个第一隔磁槽之间形 成的圓周角度 A, 其余两个相邻的卡槽、 在每个卡槽的两侧、 转子铁芯上设置第 二隔磁槽, 第二隔磁槽与卡槽连通, 位于同一"" 曹两侧的两个第二隔磁槽之间 形成的圓周角度 B, 圓周角度 A与圓周角度 B不相等。
上述所述的位于同一"" 曹两侧的两个第一隔磁槽之间形成的圓周角度 A的 范围是在 70° 至 80° 之间, 位于同一"" ^槽两侧的两个第二隔磁槽之间形成的圓 周角度 B的范围是在 55。 至 65。 之间。
上述所述的转子铁芯包括上段转子铁芯和下段转子铁芯, 上段转子铁芯和 下段转子铁芯相错 180。 叠放安装在一起,上段转子铁芯的第一隔磁槽和下段转 子铁芯的第二隔磁槽连通, 上段转子铁芯的第二隔磁槽和下段转子铁芯的第一 隔磁槽连通。
上述所述的卡槽外侧、 转子铁芯上设置安装孔, 在卡槽的内壁两侧设置有 卡块, 永磁体安装在卡槽里面并位于两卡块之间。
一种定子和转子的装配结构, 包括定子铁芯、 转子铁芯和若干永磁体, 定 子铁芯嵌套在转子铁芯外面, 转子铁芯中间设置有用来安装转轴的轴孔, 在轴 孔的外侧均勾分布有四个卡槽, 永磁体安装在卡槽里面, 其中两个相邻的卡槽、 在每个卡槽的两侧、 转子铁芯上设置第一隔磁槽, 第一隔磁槽与卡槽连通, 位 于同一^" 曹两侧的两个第一隔磁槽之间形成的圓周角度 A, 其余两个相邻的卡 槽、 在每个卡槽的两侧、 转子铁芯上设置第二隔磁槽, 第二隔磁槽与卡槽连通, 位于同一卡槽两侧的两个第二隔磁槽之间形成的圓周角度 B,圓周角度 A与圓周 角度 B不相等。
上述所述的位于同一"" 曹两侧的两个第一隔磁槽之间形成的圓周角度 A的 范围是在 70° 至 80° 之间, 位于同一"" ^槽两侧的两个第二隔磁槽之间形成的圓 周角度 B的范围是在 55。 至 65。 之间。
上述所述的位于同一"" 曹两侧的两个第一隔磁槽之间形成的圓周角度 A是 74. 5。 , 位于同一"" 曹两侧的两个第二隔磁槽之间形成的圓周角度 B的是 59. 5 上述所述的定子铁芯上设置有 24个嵌线槽, 圓周角度 A减去圓周角度 B等 于 360。 除以嵌线槽数。
上述所述的卡槽外侧、 转子铁芯上设置有两个槽孔, 两个槽孔的中心线过 轴孔的中心形成第一平分线和第二平分线, 第一平分线和第二平分线分别把圓 周角度 A和圓周角度 B平分成三等份。
一种电机, 包括转轴、 转子组件、 定子组件和机壳组件, 转子组件安装在 转轴上, 定子组件嵌套在转子组件外面, 机壳组件中间设置空腔, 定子组件和 转子组件安装在空腔里面, 其中所述的转子组件包括转子铁芯和若干永磁体, 转子铁芯中间设置有用来安装转轴的轴孔, 在轴孔的外侧均勾分布有四个卡槽, 永磁体安装在卡槽里面, 其中两个相邻的卡槽、 在每个卡槽的两侧、 转子铁芯 上设置第一隔磁槽, 第一隔磁槽与卡槽连通, 位于同一"" ^槽两侧的两个第一隔 磁槽之间形成的圓周角度 A, 其余两个相邻的卡槽、 在每个卡槽的两侧、 转子铁 芯上设置第二隔磁槽, 第二隔磁槽与卡槽连通, 位于同一"" 曹两侧的两个第二 隔磁槽之间形成的圓周角度 B, 圓周角度 A与圓周角度 B不相等。
本实用新型与现有技术相比, 具有如下效果: 1 )转子铁芯中间设置有用来 安装转轴的轴孔, 在轴孔的外侧均勾分布有四个卡槽, 永磁体安装在卡槽里面, 其中两个相邻的卡槽、 在每个卡槽的两侧、 转子铁芯上设置第一隔磁槽, 第一 隔磁槽与卡槽连通, 其余两个相邻的卡槽、 在每个卡槽的两侧、 转子铁芯上设 置第二隔磁槽, 第二隔磁槽与卡槽连通, 该转子结构筒单, 安装方便, 可以有 效减小齿槽脉动和驱动过程中的力矩波动, 有利于电机的平稳运行, 减小噪音; 2 )位于同一"" 曹两侧的两个第一隔磁槽之间形成的圓周角度 A的范围是在 70 。 至 80° 之间, 位于同一"" ^槽两侧的两个第二隔磁槽之间形成的圓周角度 B的 范围是在 55。 至 65。 之间, 使圓周角度 A和圓周角度 B相差一个齿距, 可以有 效减小齿槽脉动和驱动过程中的力矩波动, 有利于电机的平稳运行, 减小噪音; 3 )转子铁芯包括上段转子铁芯和下段转子铁芯, 上段转子铁芯和下段转子铁芯 相错 180。 叠放安装在一起,通过合理调节上段转子铁芯和下段转子铁芯之间相 错的安装角度, 可以有效减小齿槽脉动和驱动过程中的力矩波动, 提高磁场利 用率; 4 )卡槽外侧、 转子铁芯上设置安装孔, 方便转子铁芯安装, 在卡槽的内 壁两侧设置有卡块, 永磁体安装在卡槽里面并位于两卡块之间, 该结构筒单, 永磁体的安装方便, 定位准确, 牢固可靠; 5 )位于同一"" 曹两侧的两个第一隔 磁槽之间形成的圓周角度 A是 74. 5。 , 位于同一"" 曹两侧的两个第二隔磁槽之 间形成的圓周角度 B的是 59. 5。 , 定子铁芯上设置有 24个嵌线槽, 通过多次试 验测试, 当定子铁芯上设置有 24个嵌线槽、 圓周角度 A是 74. 5。 和圓周角度 B 的是 59. 5。 时, 圓周角度 A和圓周角度 B相差一个齿距, 能最有效地减小齿槽 脉动和驱动过程中的力矩波动, 使电机运行更加平稳, 减少噪音。
附图说明:
图 1 是本实用新型的立体图;
图 2 是本实用新型的分解图;
图 3 是本实用新型的前视图;
图 4 是图 3中 A-A剖视图;
图 5 是本实用新型实施例二的立体图。
具体实施方式:
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一: 如图 1至图 4所示, 本实用新型是一种内嵌永磁体的转子结构, 包括转子铁芯 1和若干永磁体 2 , 转子铁芯 1中间设置有用来安装转轴的轴孔 11 , 在轴孔 11的外侧均勾分布有四个卡槽 12 , 永磁体 2安装在卡槽 12里面, 其中两个相邻的卡槽 12、在每个卡槽 12的两侧、转子铁芯 1上设置第一隔磁槽 1 3 , 第一隔磁槽 1 3与卡槽 12连通,位于同一"" ^槽 12两侧的两个第一隔磁槽 1 3 之间形成的圓周角度 A, 其余两个相邻的卡槽 12、 在每个卡槽 12的两侧、 转子 铁芯 1上设置第二隔磁槽 14 , 第二隔磁槽 14与卡槽 12连通, 位于同一"" ^槽 12 两侧的两个第二隔磁槽 14之间形成的圓周角度 B, 圓周角度 A与圓周角度 B不 相等。
位于同一"" ^槽 12两侧的两个第一隔磁槽 1 3之间形成的圓周角度 A的范围 是在 70。 至 80。 之间, 位于同一"" 曹 12两侧的两个第二隔磁槽 14之间形成的 圓周角度 B的范围是在 55。 至 65。 之间。
所述的转子铁芯 1包括上段转子铁芯 15和下段转子铁芯 16 ,上段转子铁芯 15和下段转子铁芯 16相错 180。 叠放安装在一起, 上段转子铁芯 15的第一隔 磁槽 1 3和下段转子铁芯 16的第二隔磁槽 14连通, 上段转子铁芯 15的第二隔 磁槽 14和下段转子铁芯 16的第一隔磁槽 1 3连通。
在卡槽 12外侧、 转子铁芯 1上设置安装孔 17 , 在卡槽 12的内壁两侧设置 有卡块 121 , 永磁体 2安装在卡槽 12里面并位于两卡块 121之间。
本实用新型的原理是: 在轴孔 11的外侧均勾分布有四个卡槽 12 , 其中两个 相邻的卡槽 12、 在每个卡槽 12的两侧、 转子铁芯 1上设置第一隔磁槽 1 3 , 第 一隔磁槽 1 3与卡槽 12连通, 其余两个相邻的卡槽 12、 在每个卡槽 12的两侧、 转子铁芯 1上设置第二隔磁槽 14 , 第二隔磁槽 14与卡槽 12连通, 该结构筒单, 安装方便, 减小齿槽脉动和驱动过程中的力矩波动, 有利于电机的平稳运行, 减小噪音。
实施例二: 如图 1至图 5所示, 本实用新型是一种定子和转子的装配结构, 包括定子铁芯 3、 转子铁芯 1和若干永磁体 2 , 定子铁芯 3嵌套在转子铁芯 1外 面, 转子铁芯 1中间设置有用来安装转轴的轴孔 11 , 在轴孔 11的外侧均勾分布 有四个卡槽 12 , 永磁体 2安装在卡槽 12里面, 其中两个相邻的卡槽 12、 在每 个卡槽 12的两侧、 转子铁芯 1上设置第一隔磁槽 1 3 , 第一隔磁槽 1 3与卡槽 12 连通, 位于同一"" 曹 12两侧的两个第一隔磁槽 1 3之间形成的圓周角度 A, 其余 两个相邻的卡槽 12、 在每个卡槽 12的两侧、 转子铁芯 1上设置第二隔磁槽 14 , 第二隔磁槽 14与卡槽 12连通, 位于同一"" ^槽 12两侧的两个第二隔磁槽 14之 间形成的圓周角度 B, 圓周角度 A与圓周角度 B不相等。
位于同一"" ^槽 12两侧的两个第一隔磁槽 1 3之间形成的圓周角度 A的范围 是在 70。 至 80。 之间, 位于同一"" 曹 12两侧的两个第二隔磁槽 14之间形成的 圓周角度 B的范围是在 55。 至 65。 之间。
位于同一"" ^槽 12两侧的两个第一隔磁槽 1 3之间形成的圓周角度 A是 74. 5 。 ,位于同一"" 曹 12两侧的两个第二隔磁槽 14之间形成的圓周角度 B的是 59. 5 定子铁芯 3上设置有 24个嵌线槽 31 , 圓周角度 A减去圓周角度 B等于 360 。 除以嵌线槽 31数。
在卡槽 12外侧、 转子铁芯 1上设置有两个槽孔 18 , 两个槽孔 18的中心线 过轴孔 11的中心 01形成第一平分线 A1和第二平分线 A2 , 第一平分线 A1和第 二平分线 A2分别把圓周角度 A和圓周角度 B平分成三等份。
本实用新型的原理是: 定子铁芯 3嵌套在转子铁芯 1外面, 在轴孔 11的外 侧均勾分布有四个卡槽 12 , 其中两个相邻的卡槽 12、 在每个卡槽 12的两侧、 转子铁芯 1上设置第一隔磁槽 1 3 , 第一隔磁槽 1 3与卡槽 12连通, 其余两个相 邻的卡槽 12、 在每个卡槽 12的两侧、 转子铁芯 1上设置第二隔磁槽 14 , 第二 隔磁槽 14与卡槽 12连通, 该结构筒单、 安装方便, 磁场利用率高, 运行时振 动和噪音小。

Claims

权利要求
1、 一种内嵌永磁体的转子结构, 包括转子铁芯 (1 )和若干永磁体 (2), 转子铁芯 ( 1 ) 中间设置有用来安装转轴的轴孔( 11 ), 在轴孔( 11 ) 的外侧均 匀分布有四个卡槽(U), 永磁体(2)安装在卡槽(U)里面, 其特征在于: 其中两个相邻的卡槽(12)、 在每个卡槽(12) 的两侧、 转子铁芯 (1 )上设置 第一隔磁槽(13), 第一隔磁槽(13)与卡槽(12)连通, 位于同一"" 曹(12) 两侧的两个第一隔磁槽( 13)之间形成的圓周角度 A,其余两个相邻的卡槽( 12 )、 在每个卡槽(12) 的两侧、 转子铁芯 (1 )上设置第二隔磁槽 (14), 第二隔磁 槽(l 与卡槽(U)连通, 位于同一^^ ^槽(I2) 两侧的两个第二隔磁槽 (14) 之间形成的圓周角度 B, 圓周角度 A与圓周角度 B不相等。
2、 根据权利要求 1所述的一种内嵌永磁体的转子结构, 其特征在于: 位于 同一^" 曹(12) 两侧的两个第一隔磁槽 (13)之间形成的圓周角度 A的范围是 在 70。 至 80。 之间, 位于同一"" N曹(U) 两侧的两个第二隔磁槽 (14)之间形 成的圓周角度 B的范围是在 55° 至 65° 之间。
3、 根据权利要求 1或 2所述的一种内嵌永磁体的转子结构, 其特征在于: 所述的转子铁芯 (1 ) 包括上段转子铁芯 (15)和下段转子铁芯 (16), 上段转 子铁芯( 15 )和下段转子铁芯( 16 )相错 180。 叠放安装在一起, 上段转子铁芯
( 15 ) 的第一隔磁槽( I3 )和下段转子铁芯 ( I6 ) 的第二隔磁槽 ( 14 )连通, 上段转子铁芯 (I5) 的第二隔磁槽(l 和下段转子铁芯 (16) 的第一隔磁槽 ( 13)连通。
4、 根据权利要求 1或 2所述的一种内嵌永磁体的转子结构, 其特征在于: 在卡槽( U )外侧、 转子铁芯 ( 1 )上设置安装孔( I7 ), 在卡槽( U ) 的内壁 两侧设置有卡块( U1 ), 永磁体( 2 )安装在卡槽( U )里面并位于两卡块( U1 ) 之间。
5、 一种应用权利要求 1至 4任何一项所述的一种内嵌永磁体的转子结构的 定子和转子的装配结构, 包括定子铁芯( 3 ), 转子铁芯( 1 )和若干永磁体 ( 2 ), 定子铁芯 (3)嵌套在转子铁芯(1 )外面, 转子铁芯 (1 ) 中间设置有用来安装 转轴的轴孔( 11 ), 在轴孔( 11 )的外侧均勾分布有四个卡槽( 12 ), 永磁体 ( 2 ) 安装在卡槽(12)里面, 其特征在于: 其中两个相邻的卡槽(12)、 在每个卡槽 ( 12) 的两侧、 转子铁芯 (1 )上设置第一隔磁槽(13), 第一隔磁槽(13)与 卡槽(I2)连通, 位于同一"" 曹(I2) 两侧的两个第一隔磁槽 ( 13)之间形成 的圓周角度 A, 其余两个相邻的卡槽(12)、 在每个卡槽(12) 的两侧、 转子铁 芯 ( 1 )上设置第二隔磁槽( I4 ), 第二隔磁槽( I4 ) 与卡槽( U )连通, 位于 同一卡槽(12)两侧的两个第二隔磁槽 ( 14)之间形成的圓周角度 B, 圓周角度 A与圓周角度 B不相等。
6、 根据权利要求 5所述的一种定子和转子的装配结构, 其特征在于: 位于 同一^" 曹(12) 两侧的两个第一隔磁槽 ( 13)之间形成的圓周角度 A的范围是 在 70。 至 80。 之间, 位于同一"" N曹(U) 两侧的两个第二隔磁槽 ( 14)之间形 成的圓周角度 B的范围是在 55° 至 65° 之间。
7、 根据权利要求 6所述的一种定子和转子的装配结构, 其特征在于: 位于 同一^" 曹( )两侧的两个第一隔磁槽 ( 13)之间形成的圓周角度 A是 74.5。 , 位于同一"" ^槽(12) 两侧的两个第二隔磁槽(14)之间形成的圓周角度 B的是 59.5。 。
8、 根据权利要求 7所述的一种定子和转子的装配结构, 其特征在于: 定子 铁芯 (3)上设置有 24个嵌线槽(31 ), 圓周角度 A减去圓周角度 B等于 360。 除以嵌线槽( 31 )数。
9、 根据权利要求 8所述的一种定子和转子的装配结构, 其特征在于: 在卡 槽( U )外侧、 转子铁芯 ( 1 )上设置有两个槽孔( IS ), 两个槽孔( is ) 的中 心线过轴孔(11 )的中心(01 )形成第一平分线 A1和第二平分线 A2, 第一平分 线 A1和第二平分线 A2分别把圓周角度 A和圓周角度 B平分成三等份。
10、 一种应用权利要求 1至 4任何一项所述的一种内嵌永磁体的转子结构 的电机, 包括转轴、 转子组件、 定子组件和机壳组件, 转子组件安装在转轴上, 定子组件嵌套在转子组件外面, 机壳组件中间设置空腔, 定子组件和转子组件 安装在空腔里面, 其中所述的转子组件包括转子铁芯 (1 )和若干永磁体(2), 转子铁芯 (1 ) 中间设置有用来安装转轴的轴孔(11 ), 在轴孔(11 ) 的外侧均 匀分布有四个卡槽(U), 永磁体(2)安装在卡槽(U)里面, 其特征在于: 其中两个相邻的卡槽(12)、 在每个卡槽(12) 的两侧、 转子铁芯 (1 )上设置 第一隔磁槽(13), 第一隔磁槽(13)与卡槽(12)连通, 位于同一"" 曹(12) 两侧的两个第一隔磁槽( 13)之间形成的圓周角度 A,其余两个相邻的卡槽( 12 )、 在每个卡槽 (12) 的两侧、 转子铁芯 (1 )上设置第二隔磁槽(14), 第二隔磁 槽(l 与卡槽(U)连通, 位于同一^^ ^槽(I2) 两侧的两个第二隔磁槽 (14) 之间形成的圓周角度 B, 圓周角度 A与圓周角度 B不相等。
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