WO2025166704A1 - 一种电机 - Google Patents

一种电机

Info

Publication number
WO2025166704A1
WO2025166704A1 PCT/CN2024/076864 CN2024076864W WO2025166704A1 WO 2025166704 A1 WO2025166704 A1 WO 2025166704A1 CN 2024076864 W CN2024076864 W CN 2024076864W WO 2025166704 A1 WO2025166704 A1 WO 2025166704A1
Authority
WO
WIPO (PCT)
Prior art keywords
claw
limiting
pole
fingers
adjacent
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2024/076864
Other languages
English (en)
French (fr)
Inventor
毛路斌
宋威
司秀江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Microtech Changzhou Co Ltd
Original Assignee
AAC Microtech Changzhou Co Ltd
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 AAC Microtech Changzhou Co Ltd filed Critical AAC Microtech Changzhou Co Ltd
Priority to PCT/CN2024/076864 priority Critical patent/WO2025166704A1/zh
Priority to US18/611,673 priority patent/US20250260271A1/en
Publication of WO2025166704A1 publication Critical patent/WO2025166704A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
    • H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
    • H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
    • 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
    • H02K1/14—Stator cores with salient poles
    • H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type

Definitions

  • the present application relates to the technical field of motors, and in particular to a motor.
  • a motor is an electromagnetic device that converts or transmits electrical energy, primarily consisting of a stator and a rotor.
  • a stepper motor a special type of motor used for control, converts electrical pulses into corresponding angular or linear displacements.
  • Conventional motor magnets typically use a bonded magnet structure, where the coil is wound around a bobbin and then assembled with claw poles.
  • this bonded magnet structure suffers from poor magnetic circuit performance, stability, and reliability, hindering motor drive performance.
  • the purpose of this application is to provide a motor that can solve the problem in the prior art that is not conducive to improving the driving performance of the motor.
  • a motor comprising: a plurality of magnets arranged circumferentially around a rotating shaft, wherein the magnetic properties of two adjacent magnets close to one end of the rotating shaft are opposite, and the magnetic properties of the other ends of two adjacent magnets are opposite, and the magnets are sintered magnets.
  • the motor also includes: a first claw pole, a second claw pole and a first plastic part arranged outside the rotating shaft, the first plastic part includes a plurality of first limiting grooves arranged at intervals and a second limiting groove arranged between two adjacent first limiting grooves;
  • the first claw pole includes a first claw plate and a plurality of first claw fingers connected to the first claw plate, the first claw fingers are embedded in the corresponding first limiting grooves;
  • the second claw pole includes a second claw plate and a plurality of second claw fingers connected to the second claw plate, the second claw fingers are embedded in the corresponding second limiting grooves, and the second claw fingers are arranged between two adjacent first claw fingers.
  • the first plastic part includes a first limiting portion and a second limiting portion arranged opposite to each other, and a shell respectively connecting the first limiting portion and the second limiting portion, and a plurality of supporting members are arranged between the first limiting portion and the second limiting portion, two adjacent supporting members and the first limiting portion enclose the first limiting groove, and two adjacent supporting members and the second limiting portion enclose the second limiting groove.
  • the first limiting portion, the support member and the shell are enclosed to form a first through groove for the first claw finger to pass through, and the first through groove and the first limiting groove are communicated; the second limiting portion, the support member and the shell are enclosed to form a second through groove for the second claw finger to pass through, and the second through groove and the second limiting groove are communicated.
  • the motor further includes: a third claw pole, a fourth claw pole and a second plastic part arranged outside the rotating shaft, the third claw pole includes a third claw disk and a plurality of third claw fingers connected to the third claw disk, and the plurality of third claw fingers extend into the second plastic part, the fourth claw pole includes a cover body and a plurality of fourth claw fingers connected to the cover body, the cover body is located outside the second plastic part, the plurality of fourth claw fingers extend into the second plastic part, and the fourth claw fingers are located between two adjacent third claw fingers.
  • FIG5 is a cross-sectional view of a motor provided in an embodiment of the present application.
  • FIG6 is a schematic structural diagram of a motor shaft provided in an embodiment of the present application.
  • FIG7 is a schematic structural diagram of a first claw pole, a second claw pole, and a first plastic part in a motor provided by an embodiment of the present application;
  • FIG8 is a schematic structural diagram of a first limiting groove, a second limiting groove, and a first through groove in a motor provided in an embodiment of the present application;
  • FIG9 is a schematic structural diagram of a second through slot in a motor provided in an embodiment of the present application.
  • FIG10 is a schematic structural diagram of a first claw plate and a second claw plate in a motor provided in an embodiment of the present application;
  • FIG11 is a schematic structural diagram of a first finger base and a first finger tip in a motor provided in an embodiment of the present application;
  • FIG12 is a schematic structural diagram of a third claw pole in a motor provided in an embodiment of the present application.
  • FIG13 is a schematic structural diagram of a fourth claw pole in a motor provided in an embodiment of the present application.
  • references to "one embodiment” or “some embodiments” described in this specification mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, in this specification, the terms “include”, “comprise”, “have” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized in other ways. It should be noted that in the embodiments of the present application, “and/or” describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and/or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone.
  • the magnetic properties of the ends of two adjacent magnets 1 close to the rotating shaft 2 are opposite. For example, if the magnetic pole of one magnet 1 close to the rotating shaft 2 is the north pole, the magnetic pole of the other magnet 1 close to the rotating shaft 2 is the south pole. The magnetic properties of the other ends of two adjacent magnets 1 are opposite. For example, if the magnetic pole of one end of a magnet 1 away from the rotation axis 2 is an S pole, the magnetic pole of the other end of the adjacent magnet 1 away from the rotation axis 2 is an N pole.
  • the use of sintered magnetic steel 1 for the magnetic steel 1 can effectively improve the torque of the product.
  • Multiple magnetic steels 1 can be pre-processed and formed separately and then spliced together, which can make the assembly process simpler and meet the assembly requirements of motors of different sizes.
  • multiple magnetic steels 1 are arranged circumferentially around the rotating shaft 2, so that the magnetic properties of two adjacent magnetic steels 1 at one end near the rotating shaft 2 are opposite, and the magnetic properties of two adjacent magnetic steels 1 at the other end are opposite.
  • the magnetic steels 1 are sintered magnetic steels 1. This method of separately forming multiple sintered magnetic steels 1 and then splicing them together improves magnetic circuit performance, simplifies the assembly process, meets the assembly requirements of motors of different sizes, improves stability and reliability, and facilitates improved motor driving performance. This achieves the technical effect of improving the motor's driving performance.
  • a motor provided in an embodiment of the present application also includes an adhesive layer 3, which is arranged between two adjacent magnetic steels 1.
  • the two adjacent magnetic steels 1 are bonded and fixed to each other through the adhesive layer 3.
  • the adhesive layer 3 can be made of glue. Using the adhesive layer 3 to fix the two adjacent magnetic steels 1 can improve the stability of the multiple magnetic steels 1 after splicing.
  • the motor provided in this embodiment further includes a coating 4, which is disposed on the other end of the magnetic steel 1.
  • Coating 4 can be made of Zn, Ni, or polymer materials. Specifically, coating 4 is disposed on the outer surface of the cylindrical body formed by splicing the magnetic steel 1.
  • the magnetic energy product of the magnetic steel 1 is greater than 26MGOe. That is, assuming that the magnetic energy product of the magnetic steel 1 is (BH)max, then (BH)max ⁇ 26MGOe.
  • the intrinsic coercivity of the magnetic steel 1 is greater than 11KOe. That is, assuming that the intrinsic coercivity of the magnetic steel 1 is Hcj, then Hcj ⁇ 11KOe.
  • a motor provided in an embodiment of the present application further includes a first claw pole 5, a second claw pole 6, and a first plastic part 7.
  • the first plastic part 7 is disposed outside the rotating shaft 2, and the magnet 1 is located between the rotating shaft 2 and the first plastic part 7.
  • the first plastic part 7 includes a first limiting groove 71 and a second limiting groove 72.
  • a plurality of first limiting grooves 71 are arranged in an interval, and a second limiting groove 72 is disposed between two adjacent first limiting grooves 71.
  • the first claw pole 5 includes a first claw disk 51 and a plurality of first claw fingers 52.
  • the plurality of first claw fingers 52 are connected to the first claw disk 51, and each first claw finger 52 is embedded in a corresponding first limiting groove 71.
  • the first limiting groove 71 has space for accommodating the first claw finger 52.
  • the second claw pole 6 includes a second claw plate 61 and a plurality of second claw fingers 62, and the plurality of second claw fingers 62 are connected to the second claw plate 61.
  • Each second claw finger 62 is embedded in a corresponding second limiting groove 72.
  • the second limiting groove 72 has space for accommodating the second claw finger 62.
  • a second claw finger 62 is arranged between two adjacent first claw fingers 52, that is, the first claw fingers 52 and the second claw fingers 62 are alternately distributed along the outside of the rotating shaft 2.
  • the first plastic part 7 includes a first limiting portion 73, a second limiting portion 74 and a shell 75.
  • the first limiting portion 73 and the second limiting portion 74 are arranged opposite to each other, and the shell 75 is connected to the first limiting portion 73 and the second limiting portion 74 respectively.
  • a plurality of support members 76 are provided between the first limiting portion 73 and the second limiting portion 74.
  • the first limiting portion 73 and two adjacent support members 76 enclose the above-mentioned first limiting groove 71, and the second limiting portion 74 and two adjacent support members 76 enclose the above-mentioned second limiting groove 72.
  • the first limiting portion 73, the support member 76, and the housing 75 collectively form a first through-slot 77.
  • the first claw finger 52 extends through the first through-slot 77.
  • the first through-slot 77 and the first limiting slot 71 are interconnected, so that the first claw finger 52 extends into the first limiting slot 71 after extending through the first through-slot 77.
  • the second limiting portion 74, the support member 76, and the housing 75 collectively form a second through-slot 78.
  • the second claw finger 62 extends through the second through-slot 78.
  • the second through-slot 78 and the second limiting slot 72 are interconnected, so that the second claw finger 62 extends into the second limiting slot 72 after extending through the second through-slot 78.
  • the shell 75 includes a main body 751 and two extensions 752, the two extensions 752 are respectively connected to the main body 751, and the main body 751 is respectively connected to the first limiting portion 73 and the second limiting portion 74.
  • the main body 751 and the two extensions 752 are surrounded to form an installation groove 753, and the interior of the installation groove 753 has a space for placing the coil 9.
  • the first limiting portion 73 is located on one extension portion 752 along the longitudinal extension direction of the rotating shaft 2, and the first claw plate 51 is connected to the one extension portion 752.
  • the second limiting portion 74 is located on the other extension portion 752 along the longitudinal extension direction of the rotating shaft 2, and the second claw plate 61 is connected to the other extension portion 752.
  • the coil 9 can be wound integrally with the first claw pole 5 and the second claw pole 6.
  • the first claw finger 52 is tapered in the direction approaching the second claw plate 61
  • the second claw finger 62 is tapered in the direction approaching the first claw plate 51.
  • the distance between the first finger base 521 and the rotating shaft 2 gradually increases as it approaches the first claw plate 51, so that the first finger base 521 is curved.
  • the distance between the second finger base 621 and the rotating shaft 2 gradually increases as it approaches the second claw plate 61, so that the second finger base 621 is curved.
  • a first gap 5221 is left between the first fingertip portion 522 and the second claw plate 61, and a second gap 6221 is left between the second fingertip portion 622 and the first claw plate 51.
  • the spacing of the first gap 5221 is equal to the spacing of the second gap 6221, so that the connection between two adjacent support members 76 located within the spacing has a larger width.
  • the extension lines of the two support members 76 on both sides of the first claw finger 52 intersect with each other. Providing the intersecting support members 76 helps to improve the strength of the overall structure of the first claw pole 5, the second claw pole 6, the first plastic member 7 and the support members 76.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

本申请提供了一种电机，属于电机技术领域，包括通过多个磁钢绕转轴的周向布置，相邻两个磁钢靠近转轴的一端的磁性相反，并且相邻两个磁钢的另一端的磁性相反，磁钢为烧结磁钢。这样将多个烧结磁钢分别成型后再拼接，能够提高磁路性能，同时简化装配工艺，满足不同尺寸电机的装配要求，会提升稳定性和可靠性，有利于提高电机的驱动性能。从而达到了能够提高电机的驱动性能的技术效果。

Description

一种电机 技术领域
本申请涉及电机技术领域，特别涉及一种电机。
 背景技术
电机是一种实现电能转换或传递的电磁装置，主要由定子和转子组成。步进电机作为一种特殊的电机，属于控制用电动机，是一种将电脉冲信号转换成相应角位移或线位移的电动机。
现有技术中电机的磁钢一般采用粘接磁钢的结构，线圈是绕在骨架上再与爪极进行装配。但是采用粘接磁钢的结构的磁路性能较低，并且粘接磁钢的稳定性和可靠性较差，不利于提高电机的驱动性能。
因此，有必要提供一种新的技术方案以解决上述技术问题。
 技术问题
本申请的目的在于提供一种电机，能够解决现有技术中不利于提高电机的驱动性能的问题。
 技术解决方案
本申请的技术方案如下：提供一种电机，所述电机包括：绕转轴的周向布置的多个磁钢，相邻两个所述磁钢靠近所述转轴的一端的磁性相反，且相邻两个所述磁钢的另一端的磁性相反，所述磁钢为烧结磁钢。
可选地，所述电机还包括：第一爪极、第二爪极以及设置于所述转轴外的第一塑胶件，所述第一塑胶件包括多个间隔布置的第一限位槽以及设置于相邻两个所述第一限位槽之间的第二限位槽；所述第一爪极包括第一爪盘以及与所述第一爪盘连接的多个第一爪指，所述第一爪指嵌入对应的所述第一限位槽；所述第二爪极包括第二爪盘以及与所述第二爪盘连接的多个第二爪指，所述第二爪指嵌入对应的所述第二限位槽，相邻两个所述第一爪指之间设置有所述第二爪指。
可选地，所述第一塑胶件包括相对设置的第一限位部和第二限位部，以及分别连接所述第一限位部和所述第二限位部的壳体，于所述第一限位部和所述第二限位部之间设置有多个支撑件，相邻两个所述支撑件和所述第一限位部围合所述第一限位槽，相邻两个所述支撑件和所述第二限位部围合所述第二限位槽。
可选地，所述第一限位部、所述支撑件和所述壳体围合形成有用于所述第一爪指贯穿的第一通槽，所述第一通槽和所述第一限位槽相通；所述第二限位部、所述支撑件和所述壳体围合形成有用于所述第二爪指贯穿的第二通槽，所述第二通槽和所述第二限位槽相通。
可选地，所述壳体包括本体以及分别与所述本体连接的两个延伸部，所述本体分别与所述第一限位部和所述第二限位部连接，所述本体和两个所述延伸部围合形成有用于放置线圈的安装槽。
可选地，所述第一爪指沿靠近所述第二爪盘的方向上呈渐缩状，所述第二爪指沿靠近所述第一爪盘的方向上呈渐缩状，所述第一爪极和所述第二爪极分别一体注塑成型。
可选地，所述电机还包括：第三爪极、第四爪极以及设置于所述转轴外的第二塑胶件，所述第三爪极包括第三爪盘以及与所述第三爪盘连接的多个第三爪指，多个所述第三爪指伸入所述第二塑胶件内，所述第四爪极包括罩体以及与所述罩体连接的多个第四爪指，所述罩体位于所述第二塑胶件外，多个所述第四爪指伸入所述第二塑胶件内，且所述第四爪指位于相邻两个所述第三爪指之间。
可选地，所述电机还包括：于相邻两个所述磁钢之间设置的粘接层。
可选地，所述电机还包括：设置于所述磁钢的另一端的涂层。
可选地，所述磁钢的磁能积大于26MGOe，所述磁钢的内禀矫顽力大于11KOe。
 有益效果
本申请的有益效果在于：本申请提供一种电机，通过多个磁钢绕转轴的周向布置，相邻两个磁钢靠近转轴的一端的磁性相反，并且相邻两个磁钢的另一端的磁性相反，磁钢为烧结磁钢。这样将多个烧结磁钢分别成型后再拼接，能够提高磁路性能，同时简化装配工艺，满足不同尺寸电机的装配要求，会提升稳定性和可靠性，有利于提高电机的驱动性能。从而达到了能够提高电机的驱动性能的技术效果。
 附图说明
图1为本申请实施例提供的一种电机中磁钢的结构示意图；
图2为本申请实施例提供的一种电机中粘接层的结构示意图；
图3为本申请实施例提供的一种电机的爆炸示意图；
图4为本申请实施例提供的一种电机的结构示意图；
图5为本申请实施例提供的一种电机的剖视图；
图6为本申请实施例提供的一种电机中转轴的结构示意图；
图7为本申请实施例提供的一种电机中第一爪极、第二爪极和第一塑胶件的结构示意图；
图8为本申请实施例提供的一种电机中第一限位槽、第二限位槽和第一通槽的结构示意图；
图9为本申请实施例提供的一种电机中第二通槽的结构示意图；
图10为本申请实施例提供的一种电机中第一爪盘和第二爪盘的结构示意图；
图11为本申请实施例提供的一种电机中第一指根部和第一指尖部的结构示意图；
图12为本申请实施例提供的一种电机中第三爪极的结构示意图；
图13为本申请实施例提供的一种电机中第四爪极的结构示意图；
图14为本申请实施例提供的一种电机中罩体的结构示意图。
 本发明的实施方式
下面详细描述本申请的实施方式，实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性地，仅用于解释本申请，而不能理解为对本申请的限制。
为了使本技术领域的人员更好地理解本申请的方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整的描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例中，至少一个是指一个或多个；多个，是指两个或两个以上。在本申请的描述中，“第一”、“第二”、“第三”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。
在本说明书中描述的参考“一种实施方式”或“一些实施方式”等意味着在本申请的一个或多个实施方式中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。需要说明的是，本申请实施例中，“和/或”描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。
需要指出的是，本申请实施例中，当组件被称为“固定于”另一个组件，它可以直接在另一个组件上或者也可以存在居中组件。当一个组件被认为是“连接”另一个组件，它可以是直接连接到另一个组件或者可能同时存在居中组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。同时本申请实施例中“连接”也可以理解为电连接，两个电学元件连接可以是两个电学元件之间的直接或间接连接。例如，A与B连接，既可以是A与B直接连接，也可以是A与B之间通过一个或多个其它电学元件间接连接。本申请实施例中所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明目的，并不是旨在限制本申请。
本申请实施例提供的一种电机，请参阅图1至图14所示，本申请实施例提供的一种电机包括多个磁钢1，多个磁钢1绕转轴2的周向布置，相邻两个磁钢1靠近转轴2的一端的磁性相反，并且相邻两个磁钢1的另一端的磁性相反，磁钢1为烧结磁钢1。
其中，多个磁钢1固定连接在转轴2上，多个磁钢1可以是指2个磁钢1、3个磁钢1、4个磁钢1、5个磁钢1、6个磁钢1等，如磁钢1的数量为6个时，6个磁钢1以转轴2为中心呈对称分布，6个磁钢1拼接后整体呈现为圆柱体形，转轴2贯穿该圆柱体的中心。每个磁钢1中远离转轴2的一端和靠近转轴2的一端的磁性相反，如一个磁钢1中靠近转轴2的一端的磁极为N极，则该磁钢1远离转轴2的另一端的磁极为S极。并且在相邻两个磁钢1中，两个磁钢1靠近转轴2的一端的磁性相反，如一个磁钢1中靠近转轴2的一端的磁极为N极，则与该磁钢1相邻的另一个磁钢1中靠近转轴2的一端的磁极为S极。相邻两个磁钢1的另一端的磁性相反，如一个磁钢1中远离转轴2的一端的磁极为S极，则与该磁钢1相邻的另一个磁钢1中远离转轴2的一端的磁极为N极。
其中，磁钢1采用烧结磁钢1能够有效提升产品的转矩，可以预先将多个磁钢1分别单独加工成型后再拼接，能够使得装配工艺更简单，同时满足不同尺寸电机的装配要求。
在本实施例中，通过多个磁钢1绕转轴2的周向布置，相邻两个磁钢1靠近转轴2的一端的磁性相反，并且相邻两个磁钢1的另一端的磁性相反，磁钢1为烧结磁钢1。这样将多个烧结磁钢1分别成型后再拼接，能够提高磁路性能，同时简化装配工艺，满足不同尺寸电机的装配要求，会提升稳定性和可靠性，有利于提高电机的驱动性能。从而达到了能够提高电机的驱动性能的技术效果。
作为一种实施方式，请参阅图1和图2，本申请实施例提供的一种电机还包括粘接层3，粘接层3设置在相邻两个磁钢1之间，相邻两个磁钢1通过粘接层3相互粘接固定，粘接层3可以采用胶水，采用粘接层3将相邻两个磁钢1进行固定，能够提高多个磁钢1拼接后的稳定性。
作为一种实施方式，本申请实施例提供的一种电机还包括涂层4，涂层4设置在磁钢1的另一端，涂层4可以采用镀Zn、Ni以及高分子材料。即涂层4设置在上述磁钢1拼接后整体呈现为圆柱体形的外表面。
作为一种实施方式，磁钢1的磁能积大于26MGOe，即假设磁钢1的磁能积是(BH)max，则(BH)max≥26MGOe。磁钢1的内禀矫顽力大于11KOe，即假设磁钢1的内禀矫顽力是Hcj，则Hcj≥11KOe。
作为一种实施方式，本申请实施例提供的一种电机还包括第一爪极5、第二爪极6和第一塑胶件7，第一塑胶件7设置在转轴2外，磁钢1位于转轴2和第一塑胶件7之间。第一塑胶件7包括第一限位槽71和第二限位槽72，多个第一限位槽71相互间隔布置，第二限位槽72设置在相邻两个第一限位槽71之间。第一爪极5包括第一爪盘51和多个第一爪指52，多个第一爪指52与第一爪盘51连接，每个第一爪指52嵌入对应的一个第一限位槽71内，第一限位槽71内具有容纳第一爪指52的空间。第二爪极6包括第二爪盘61和多个第二爪指62，多个第二爪指62与第二爪盘61连接，每个第二爪指62嵌入对应的一个第二限位槽72内，第二限位槽72内具有容纳第二爪指62的空间，相邻两个第一爪指52之间设置有第二爪指62，即第一爪指52和第二爪指62在沿着转轴2的外部进行交替分布。
作为一种实施方式，请参阅图6至图8，第一塑胶件7包括第一限位部73、第二限位部74和壳体75，第一限位部73和第二限位部74相对设置，壳体75分别与第一限位部73和第二限位部74连接，在第一限位部73和第二限位部74之间设置有多个支撑件76，第一限位部73和相邻两个支撑件76围合上述第一限位槽71，第二限位部74和相邻两个支撑件76围合上述第二限位槽72。
作为一种实施方式，第一限位部73、支撑件76和壳体75围合形成第一通槽77，第一爪指52贯穿第一通槽77，第一通槽77和第一限位槽71相互连通，使得第一爪指52贯穿第一通槽77后伸入第一限位槽71内。第二限位部74、支撑件76和壳体75围合形成第二通槽78，第二爪指62贯穿第二通槽78，第二通槽78和第二限位槽72相互连通，使得第二爪指62贯穿第二通槽78后伸入第二限位槽72内。
作为一种实施方式，壳体75包括本体751和两个延伸部752，两个延伸部752分别与本体751连接，同时本体751分别与第一限位部73和第二限位部74连接，本体751和两个延伸部752围合形成有安装槽753，安装槽753的内部具有用于放置线圈9的空间。
作为一种实施方式，第一限位部73沿着转轴2的长度延伸方向在一个延伸部752的投影位于一个延伸部752上，第一爪盘51与一个延伸部752连接。第二限位部74沿着转轴2的长度延伸方向在另一个延伸部752的投影位于另一个延伸部752上，第二爪盘61与另一个延伸部752连接。
作为一种实施方式，第一爪极5和第二爪极6分别一体注塑成型后，可以将线圈9与第一爪极5和第二爪极6一体绕线。第一爪指52沿着靠近第二爪盘61的方向上呈现为渐缩状，第二爪指62沿着靠近第一爪盘51的方向上呈现为渐缩状。
在一些实施方式中，请参阅图3至图13，第一爪指52包括第一指根部521和第一指尖部522，第一指尖部522与第一指根部521连接，第一指根部521与第一爪盘51连接，第一指尖部522沿着靠近转轴2的方向呈现为凹陷状。第二爪指62包括第二指根部621和第二指尖部622，第二指尖部622与第二指根部621连接，第二指根部621与第二爪盘61连接，第二指尖部622沿着靠近转轴2的方向呈现为凹陷状，第二指尖部622和第一指尖部522围合呈现为圆环状，这样能够增大该圆环状的内部空间，为容纳转轴2以及绕转轴2的周向布置的多个磁钢1提供更大的空间。
作为一种实施方式，第一指根部521沿着靠近第一爪盘51的方向上与转轴2的间距逐渐扩大，使得第一指根部521呈现为弯曲状。第二指根部621沿着靠近第二爪盘61的方向上与转轴2的间距逐渐扩大，使得第二指根部621呈现为弯曲状。
作为一种实施方式，第一指尖部522和第二爪盘61之间留有第一间隙5221，第二指尖部622和第一爪盘51之间留有第二间隙6221，第一间隙5221的间距和第二间隙6221的间距相等，使得位于该间距内的相邻两个支撑件76的连接处具有较大的宽度。
在一些实施方式中，位于第一爪指52两侧的两个支撑件76的延长线相互交叉，通过设置相互交叉的支撑件76有利于提高第一爪极5、第二爪极6、第一塑胶件7和支撑件76整体结构的强度。
在一些实施方式中，请参阅图3，本申请实施例提供的一种电机还包括第五爪极30、第六爪极301、另一个外壳40、另一个线圈50以及另一个塑胶件60，由于第五爪极30和上述第一爪极5的结构、原理相同，此处不再累述。由于第六爪极301和上述第二爪极6的结构、原理相同，此处不再累述。由于另一个外壳40和下述外壳8的结构、原理相同，此处不再累述。由于另一个线圈50和上述线圈9的结构、原理相同，此处不再累述。由于另一个塑胶件60和上述第一塑胶件7的结构、原理相同，此处不再累述。通过将第五爪极30和第六爪极301分别安装至另一个塑胶件60上，将另一个线圈50安装至该另一个塑胶件60的外部，另一个外壳40套设在另一个线圈50的外部，将上述第一塑胶件7和另一个塑胶件60沿着竖直方向上进行安装后，能够适应较长的转轴2以及绕转轴2设置的较长的多个磁钢1。
作为另外的一种实施方式，请参阅图12至图14，本申请实施例提供的一种电机还包括第三爪极10、第四爪极20和第二塑胶件203，第三爪极10包括第三爪盘101和多个第三爪指102，多个第三爪指102与第三爪盘101连接，多个第三爪指102伸入第二塑胶件203的内部，多个第三爪指102之间可以呈现为等间距分布，多个第三爪指102位于第二塑胶件203和磁钢1之间。第四爪极20包括罩体201和多个第四爪指202，多个第四爪指202与罩体201连接，罩体201位于第二塑胶件203的外部，并且罩体201上可以设置有安装口2011，多个第四爪指202伸入第二塑胶件203的内部，并且第四爪指202位于相邻两个第三爪指102之间。多个第四爪指202之间可以呈现为等间距分布，多个第四爪指202位于第二塑胶件203和磁钢1之间。同时，罩体201可以与第三爪盘101相互连接，通过第三爪盘101、罩体201和第二塑胶件203围合形成放置线圈9的空间。
在一些实施方式中，本申请实施例提供的一种电机还包括外壳8，本领域技术人员可以理解的是，本申请实施例提供的一种电机中对外壳8的具体结构不作限制，只需要将设置有线圈9、第一爪极5、第二爪极6的第一塑胶件7放置在外壳8的内部，转轴2以及绕转轴2的周向布置的多个磁钢1放置在第一塑胶件7的内部，通过通电的线圈9驱动转轴2以及绕转轴2布置的多个磁钢1在外壳8的内部进行转动即可。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。

Claims (10)

  1. 一种电机，其特征在于，所述电机包括：绕转轴的周向布置的多个磁钢，相邻两个所述磁钢靠近所述转轴的一端的磁性相反，且相邻两个所述磁钢的另一端的磁性相反，所述磁钢为烧结磁钢。
  2. 根据权利要求1所述的电机，其特征在于，所述电机还包括：第一爪极、第二爪极以及设置于所述转轴外的第一塑胶件，所述第一塑胶件包括多个间隔布置的第一限位槽以及设置于相邻两个所述第一限位槽之间的第二限位槽；所述第一爪极包括第一爪盘以及与所述第一爪盘连接的多个第一爪指，所述第一爪指嵌入对应的所述第一限位槽；所述第二爪极包括第二爪盘以及与所述第二爪盘连接的多个第二爪指，所述第二爪指嵌入对应的所述第二限位槽，相邻两个所述第一爪指之间设置有所述第二爪指。
  3. 根据权利要求2所述的电机，其特征在于：所述第一塑胶件包括相对设置的第一限位部和第二限位部，以及分别连接所述第一限位部和所述第二限位部的壳体，于所述第一限位部和所述第二限位部之间设置有多个支撑件，相邻两个所述支撑件和所述第一限位部围合所述第一限位槽，相邻两个所述支撑件和所述第二限位部围合所述第二限位槽。
  4. 根据权利要求3所述的电机，其特征在于：所述第一限位部、所述支撑件和所述壳体围合形成有用于所述第一爪指贯穿的第一通槽，所述第一通槽和所述第一限位槽相通；所述第二限位部、所述支撑件和所述壳体围合形成有用于所述第二爪指贯穿的第二通槽，所述第二通槽和所述第二限位槽相通。
  5. 根据权利要求3所述的电机，其特征在于：所述壳体包括本体以及分别与所述本体连接的两个延伸部，所述本体分别与所述第一限位部和所述第二限位部连接，所述本体和两个所述延伸部围合形成有用于放置线圈的安装槽。
  6. 根据权利要求2所述的电机，其特征在于：所述第一爪指沿靠近所述第二爪盘的方向上呈渐缩状，所述第二爪指沿靠近所述第一爪盘的方向上呈渐缩状，所述第一爪极和所述第二爪极分别一体注塑成型。
  7. 根据权利要求1所述的电机，其特征在于，所述电机还包括：第三爪极、第四爪极以及设置于所述转轴外的第二塑胶件，所述第三爪极包括第三爪盘以及与所述第三爪盘连接的多个第三爪指，多个所述第三爪指伸入所述第二塑胶件内，所述第四爪极包括罩体以及与所述罩体连接的多个第四爪指，所述罩体位于所述第二塑胶件外，多个所述第四爪指伸入所述第二塑胶件内，且所述第四爪指位于相邻两个所述第三爪指之间。
  8. 根据权利要求1所述的电机，其特征在于，所述电机还包括：于相邻两个所述磁钢之间设置的粘接层。
  9. 根据权利要求1所述的电机，其特征在于，所述电机还包括：设置于所述磁钢的另一端的涂层。
  10. 根据权利要求1所述的电机，其特征在于：所述磁钢的磁能积大于26MGOe，所述磁钢的内禀矫顽力大于11KOe。
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