WO2021238057A1 - 直线电机 - Google Patents

直线电机 Download PDF

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Publication number
WO2021238057A1
WO2021238057A1 PCT/CN2020/124925 CN2020124925W WO2021238057A1 WO 2021238057 A1 WO2021238057 A1 WO 2021238057A1 CN 2020124925 W CN2020124925 W CN 2020124925W WO 2021238057 A1 WO2021238057 A1 WO 2021238057A1
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WO
WIPO (PCT)
Prior art keywords
linear motor
sliding
base
mover
along
Prior art date
Application number
PCT/CN2020/124925
Other languages
English (en)
French (fr)
Inventor
刘元江
贺子和
赵雲峰
周忠厚
张珍
李伟
Original Assignee
歌尔股份有限公司
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Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2021238057A1 publication Critical patent/WO2021238057A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • 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
    • H02K1/17—Stator cores with permanent magnets
    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/26—Rotor cores with slots for windings
    • H02K1/265—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/04—Machines with one rotor and two stators
    • 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
    • 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
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots

Definitions

  • the present invention relates to the technical field of motors, in particular to a linear motor.
  • a linear motor is an electric drive device that directly converts electrical energy into linear motion mechanical energy. It can omit a large number of intermediate transmission mechanisms, speed up system reflection, and improve system accuracy, so it is widely used.
  • the existing linear motor has a small output driving force and a large power consumption, so the use cost is relatively high.
  • the main purpose of the present invention is to provide a linear motor, which aims to solve the problem of low output driving force and large power consumption of traditional linear motors, which makes the use cost high.
  • a linear motor provided by the present invention includes:
  • a base having a mounting groove, the mounting groove having a notch extending in a first direction, the base having a bottom wall opposite to the notch and two side walls extending in the first direction;
  • the mover assembly is slidably mounted on the base along the first direction, the mover assembly includes a mover located in the mounting groove, the mover includes an iron core extending along the first direction, and A coil winding arranged on the outer circumference of the iron core is spirally wound in the first direction.
  • the iron core includes a plurality of silicon steel sheets stacked along the depth direction of the installation groove.
  • the silicon steel sheet has two sides extending along the first direction, a plurality of openings are correspondingly provided on both sides of the plurality of silicon steel sheets, and the plurality of openings of the plurality of silicon steel sheets are stacked. Set to form multiple winding grooves;
  • Each coil of the coil winding is wound in the plurality of winding slots.
  • the coil winding is formed by winding a continuous whole wire.
  • the stator assembly includes a plurality of magnets, and the plurality of magnets are respectively arranged on the bottom wall along the first direction and on each of the side walls along the first direction, Wherein, the magnetic properties of every two adjacent magnets are opposite.
  • the plurality of magnets of at least one stator assembly and the plurality of magnets of another stator assembly are arranged in a staggered manner in the first direction.
  • the stator assembly further includes a first yoke disposed between the bottom wall and a plurality of corresponding magnets, and a first yoke disposed on each of the side walls and corresponding to each of the plurality of magnets. The second yoke between the magnets.
  • the mover assembly further includes a sliding structure provided to connect the mover and the base, and the sliding structure includes a sliding member slidably provided on the base and connected with the iron core;
  • One of the sliding member and the base is provided with a sliding rail, and the other is provided with a sliding groove matched with the sliding rail.
  • the sliding member includes a bearing platform provided on a side of the iron core facing the notch, and a first slider and a first sliding block respectively provided on both sides of the bearing platform along the first direction.
  • a second sliding block, the first sliding block and the second sliding block are both provided with the sliding groove;
  • the slide rail includes a first slide rail and a second slide rail respectively provided on the side edges of the two groove openings of the installation groove along the first direction.
  • a first limiting groove and a second limiting groove are formed on both sides of the bearing platform along the first direction; the first sliding block and the second sliding block are respectively installed in the corresponding The first limiting slot and the second limiting slot; and/or,
  • the bearing platform is integrally arranged with the first sliding block and the second sliding block.
  • an installation groove is provided on the base, and the mover is arranged in the installation groove, so that the mover is embedded in the base, so that the structure of the linear motor is It is more compact and smaller in size, which can effectively reduce the weight of the linear motor to save costs; and three stator assemblies are provided to correspond to the coil windings to form driving force on the three sides of the mover assembly, so that all The output driving force of the linear motor is greater, and the load capacity of the linear motor can be effectively improved.
  • FIG. 1 is a schematic structural diagram of an embodiment of a linear motor provided by the present invention
  • Fig. 2 is a schematic sectional view of the linear motor in Fig. 1 along the A-A direction;
  • Fig. 3 is a schematic cross-sectional structure view of the linear motor in Fig. 2 from another angle of view from the A-A direction;
  • FIG. 4 is a schematic diagram of the structure of a plurality of the silicon steel sheets and the coils in FIG. 1;
  • FIG. 5 is a schematic diagram of the structure of a plurality of the silicon steel sheets in FIG. 1;
  • FIG. 6 is a schematic diagram of the structure of a plurality of the silicon steel sheets and the coils in FIG. 1 after being glued.
  • the directional indicator is only used to explain the relative positional relationship, movement, etc., between the components in a specific posture. If the specific posture changes, , The directional indication changes accordingly.
  • a linear motor is an electric drive device that directly converts electrical energy into linear motion mechanical energy. It can omit a large number of intermediate transmission mechanisms, speed up system reflection, and improve system accuracy, so it is widely used.
  • the existing linear motor has a small output driving force and a large power consumption, so the use cost is relatively high.
  • the present invention provides a linear motor.
  • FIGS. 1 to 6 are an embodiment of the linear motor provided by the present invention.
  • the linear motor 100 includes a base 1, three stator assemblies 3, and a mover assembly 2.
  • the base 1 has a mounting groove 11, and the mounting groove 11 has a notch extending along a first direction.
  • the first direction may be along the length of the base 1, or may be other parts of the base 1.
  • the base 1 has a bottom wall opposite to the slot and two side walls extending along the first direction; to facilitate the description of the specific structure of the linear motor 100, the linear motor 100 100 is placed in the working state with reference to Figure 1 for the placement direction, the installation slot 11 is provided with upwardly arranged notches; the three stator assemblies 3 are located in the installation slot 11, and Are correspondingly installed on the bottom wall and the two side walls to respectively correspond to at least three sides of the mover assembly 2; the mover assembly 2 is slidably installed on the
  • the mover assembly 2 includes a mover located in the mounting groove 11, the mover includes an iron core extending along the first direction, and a spiral wound on the first direction along the first direction.
  • the coil winding 22 on the outer circumference of the iron core generates driving force on all three sides of the mover.
  • a mounting groove 11 is provided on the base 1, and the mover is arranged in the mounting groove 11, so that the mover is embedded in the base 1, so that
  • the linear motor 100 has a more compact structure and a smaller volume, which can effectively reduce the weight of the linear motor 100 to save costs; and three stator assemblies 3 are arranged corresponding to the coil windings 22 to be arranged on three sides of the mover assembly 2. Both have a driving force, so that the output driving force of the linear motor 100 is greater, and the load capacity of the linear motor 100 can be effectively improved.
  • the iron core may be configured to include a plurality of silicon steel sheets 21 stacked along the depth direction of the mounting slot 11.
  • each silicon steel sheet 21 is a sheet material, and each silicon steel sheet 21 extends along the first direction, and a plurality of the silicon steel sheets 21 are stacked together to form a columnar shape to be connected to the mounting groove 11
  • the shape corresponds to the shape so as to be placed in the mounting slot 11, and the coil winding 22 can be directly wound around the peripheral side of the plurality of silicon steel sheets 21, making the manufacturing process of the mover assembly 2 simpler.
  • the silicon steel sheet 21 has two sides extending along the first direction, and a plurality of openings are provided on both sides of the plurality of silicon steel sheets 21 one by one, and the plurality of silicon steel sheets 21
  • the multiple openings of the sheet 21 are stacked to form multiple winding slots 211; each coil of the coil winding 22 is wound in the multiple winding slots 211, and when the coil is wound, it is clamped in The multiple openings make the winding of the coil winding 22 more reliable.
  • a plurality of the silicon steel sheets 21 and the coil windings 22 can be integrally arranged through glue-filling connection, so that the mover assembly 2 is formed as a whole for easy installation.
  • the coil winding 22 is wound by a continuous whole wire, so that the driving force generated by each side of the mover is more balanced, so that the movement of the mover assembly 2 is more stable.
  • the stator assembly 3 includes a plurality of magnets 31, and the plurality of magnets 31 are respectively arranged on the bottom wall along the first direction and arranged on each of the magnets along the first direction. On the side wall, the magnetic properties of every two adjacent magnets 31 are opposite to form a stator magnetic field.
  • the stator assembly 3 further includes a first yoke 32 arranged between the bottom wall and the plurality of magnets 31 corresponding to it, and a first yoke 32 arranged at The second yoke 33 between each of the side walls and the corresponding plurality of magnets 31.
  • the three stator assemblies 3 are respectively arranged on the bottom wall and the two side walls of the mounting slot 11, so as to correspond to the sub-assemblies.
  • the bottom of the mover and the two side parts form a driving force, and three-side driving makes the output driving force of the linear motor 100 greater, thereby improving the load capacity of the linear motor 100.
  • the plurality of magnets 31 of at least one of the stator assemblies 3 may be combined with another of the stator assemblies.
  • the plurality of magnets 31 of 3 are arranged in a staggered arrangement along the first direction to compensate for cogging force.
  • the compensation effect is the best.
  • the mover assembly 2 further includes a sliding structure 23 connected to the mover and the base 1.
  • the sliding structure 23 includes a sliding structure 23 slidably mounted on the base 1 and connected to the iron A sliding piece 231 connected to the core; one of the sliding piece 231 and the base 1 is provided with a sliding rail 12, and the other is provided with a sliding groove that matches with the sliding rail 12, passing through the sliding rail 12 cooperates with the sliding groove to slide to make the sliding of the mover assembly 2 smoother.
  • the sliding connection between the mover and the base 1 is not limited to the above one, and the sliding rail 12 has a simple structure and is easy to manufacture.
  • the sliding member 231 includes a bearing platform 2311 provided on the side of the iron core facing the notch, and a bearing platform 2311 respectively provided on both sides of the bearing platform 2311 along the first direction.
  • the first sliding block 2312 and the second sliding block 2313, the first sliding block 2312 and the second sliding block 2113 are provided with the sliding groove, and the first sliding block 2312 and the second sliding block 2113
  • the blocks 2313 protrude from the mounting groove 11 to facilitate installation;
  • the slide rail 12 includes first slide rails respectively provided on the side edges of the two notches of the mounting groove 11 along the first direction 12 and the second slide rail 12, the slide rail 12 is arranged at the notch of the installation groove 11 for easier installation.
  • the connection position of the iron core and the base 1 can also be adjusted appropriately according to the installation space of the mover.
  • the first sliding block 2312 and the second sliding block 2313 may be detachably connected to the bearing platform 2311 to facilitate the replacement and maintenance of the sliding block.
  • the carrying platform 2311 is provided with a first limiting groove and a second limiting groove on both sides along the first direction; the first sliding block 2312 and the second sliding block 2313 are respectively mounted on In the first limiting slot and the second limiting slot.
  • first sliding block 2312 and the second sliding block 2313 can be integrally arranged with the carrying platform 2311, so that the structure is simpler and there are fewer parts.
  • the invention has compact structure, high power density of the motor, and large thrust; and can directly wind the silicon steel sheet 21 with simple process; and uses two symmetrical split guide rails to increase the motor load.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Linear Motors (AREA)

Abstract

一种直线电机，该直线电机包括底座（1）、至少三个定子组件（3）及动子组件（2），底座（1）具有一安装槽（11），安装槽（11）具有沿第一方向延伸的槽口，底座（1）具有与槽口相对的底壁以及沿第一方向延伸的两个旁侧壁；三个定子组件（3）位于安装槽（11）内，且对应安装于底壁和两个旁侧壁；动子组件（2）沿第一方向滑动安装于底座（1），动子组件（2）包括位于安装槽（11）内的动子，动子包括沿第一方向延伸的铁芯、以及沿第一方向螺旋绕设于铁芯的外周的线圈绕组（22）。该直线电机结构更紧凑，体积小，可有效减轻直线电机的重量，以节约生成；且在动子组件的至少三侧形成驱动力，从而使直线电机的输出推动力更大，以提升直线电机的负载。

Description

直线电机 技术领域
本发明涉及电机技术领域，具体涉及一种直线电机。
背景技术
直线电机是一种将电能直接转换成直线运动机械能的电力传动装置。它可以省去大量中间传动机构，加快系统反映速度，提高系统精确度，所以得到广泛的应用。但现有的直线电机输出推动力小，电量消耗大，因此使用成本较高。
发明内容
为了解决上述技术问题，本发明的主要目的在于提供一种直线电机，旨在解决传统的直线电机输出推动力小，电量消耗大，使得使用成本高的问题。
为了实现上述目的，本发明提出的一种直线电机，包括：
底座，具有一安装槽，所述安装槽具有沿第一方向延伸的槽口，所述底座具有与所述槽口相对的底壁以及沿所述第一方向延伸的两个旁侧壁；
三个定子组件，位于所述安装槽内，且对应安装于所述底壁和所述两个旁侧壁；以及，
动子组件，沿所述第一方向滑动安装于所述底座，所述动子组件包括位于所述安装槽内的动子，所述动子包括沿所述第一方向延伸的铁芯、以及沿所述第一方向螺旋绕设于所述铁芯的外周的线圈绕组。
可选地，所述铁芯包括多个沿着所述安装槽的深度方向叠设的硅钢片。
可选地，所述硅钢片具有沿所述第一方向延伸的两侧，所述多个硅钢片的两侧均一一对应设置有多个开口，所述多个硅钢片的多个开口叠设，以形成多个绕线槽；
所述线圈绕组的各线圈绕设于所述多个绕线槽中。
可选地，所述线圈绕组由连续的整线绕设而成。
可选地，所述定子组件包括多个磁体，多个所述磁体分别沿所述第一方 向布设于所述底壁上、以及沿所述第一方向布设于各所述旁侧壁上，其中，每相邻的两个所述磁体的磁性相反。
可选地，至少一个所述定子组件的多个所述磁体与另一个所述定子组件的多个所述磁体，在所述第一方向上呈错位设置。
可选地，所述定子组件还包括设于所述底壁和与其对应的多个所述磁体之间的第一磁轭、以及设于各所述旁侧壁与各自对应的多个所述磁体之间的第二磁轭。
可选地，所述动子组件还包括连接所述动子和所述底座设置的滑动结构，所述滑动结构包括滑动设于所述底座上、且与所述铁芯相连接的滑动件；
所述滑动件和所述底座上其中之一设有滑轨，其中另一设有与所述滑轨相配合的滑槽。
可选地，所述滑动件包括设于所述铁芯朝向所述槽口的一侧的承载台、以及分别设于所述承载台沿所述第一方向的两侧的第一滑块和第二滑块，所述第一滑块和所述第二滑块上均设有所述滑槽；
所述滑轨包括分别设于所述安装槽沿所述第一方向的两个槽口侧缘上的第一滑轨和第二滑轨。
可选地，所述承载台沿所述第一方向的两侧开设有第一限位槽和第二限位槽；所述第一滑块和所述第二滑块分别对应安装于所述第一限位槽和所述第二限位槽；和/或，
所述承载台与所述第一滑块和所述第二滑块呈一体设置。
本发明提供的技术方案中，通过在底座上设置有安装槽，且将所述动子设于所述安装槽内，以使得所述动子内嵌于所述底座内，使得直线电机的结构更紧凑，体积更小，可有效减轻直线电机的重量，以节约成本；且设置有三个定子组件以对应所述线圈绕组设置，以在所述动子组件的三侧形成驱动力，从而使所述直线电机的输出推动力更大，可有效提升所述直线电机的负载能力。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本发明提供的一种直线电机的一实施例的结构示意图；
图2为图1中所述直线电机的A-A向的剖面结构示意图；
图3为图2中所述直线电机的A-A向的另一视角的剖面结构示意图；
图4为图1中多个所述硅钢片和所述线圈的结构示意图；
图5为图1中多个所述硅钢片的结构示意图；
图6为图1中多个所述硅钢片和所述线圈灌胶后的结构示意图。
附图标号说明：
标号 名称 标号 名称
100 直线电机 231 滑动件
1 底座 2311 承载台
11 安装槽 2312 第一滑块
12 滑轨 2313 第二滑块
2 动子组件 3 定子组件
21 硅钢片 31 磁体
211 绕线槽 32 第一磁轭
22 线圈绕组 33 第二磁轭
23 滑动结构    
本发明目的的实现、功能特点及优异效果，下面将结合具体实施例以及附图做进一步的说明。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有 作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，若本发明实施例中有涉及方向性指示，则该方向性指示仅用于解释在某一特定姿态下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，全文中出现的“和/或”的含义，包括三个并列的方案，以“A和/或B”为例，包括A方案、或B方案、或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
直线电机是一种将电能直接转换成直线运动机械能的电力传动装置。它可以省去大量中间传动机构，加快系统反映速度，提高系统精确度，所以得到广泛的应用。但现有的直线电机输出推动力小，电量消耗大，因此使用成本较高。鉴于此，本发明提供一种直线电机，图1至图6为本发明提供的所述直线电机的一实施例。
请参阅图1至图3，在本实施例中，所述直线电机100包括底座1、三个定子组件3、以及动子组件2。所述底座1具有一安装槽11，所述安装槽11具有沿第一方向延伸的槽口，所述第一方向可为沿所述底座1的长度方向，也可为所述底座1的其它方向，所述底座1具有与所述槽口相对的底壁以及沿所述第一方向延伸的两个旁侧壁；为方便对所述直线电机100的具体结构进行说明，将所述直线电机100处于工作状态时的放置方向参照附图1所示以进行放置，所述安装槽11则为设有朝上设置的槽口；三个所述定子组件3位于所述安装槽11内，且对应安装于所述底壁和所述两个旁侧壁，以分别对应所述动子组件2的至少三个侧面进行设置；所述动子组件2沿所述第一方向滑动安装于所述底座1，所述动子组件2包括位于所述安装槽11内的动子，所述动子包括沿所述第一方向延伸的铁芯、以及沿所述第一方向螺旋绕设于所述铁芯的外周的线圈绕组22，以在所述动子的三侧均产生驱动力。
本发明提供的技术方案中，通过在底座1上设置有安装槽11，且将所述动子设于所述安装槽11内，以使得所述动子内嵌于所述底座1内，使得直线电机100的结构更紧凑，体积更小，可有效减轻直线电机100的重量，以节约成本；且设置有三个定子组件3以对应线圈绕组22设置，以在所述动子组件2的三侧均形成有驱动力，从而使所述直线电机100的输出推动力更大，可有效提升所述直线电机100的负载能力。
所述动子的设置形式有多种。在一实施例中，可参阅图4，为了便于所述线圈绕组22进行绕设，可将所述铁芯设置为包括多个沿着所述安装槽11的深度方向叠设的硅钢片21，且各所述硅钢片21均为片状材料，且各硅钢片21均沿所述第一方向延伸设置，多个所述硅钢片21叠设在一起则形成柱状，以与所述安装槽11的形状相对应，以便于放置于所述安装槽11内，所述线圈绕组22可直接绕设于多个所述硅钢片21的周侧，使得所述动子组件2的制造工艺更简单。
具体地，可参阅图5，所述硅钢片21具有沿所述第一方向延伸的两侧，所述多个硅钢片21的两侧均一一对应设置有多个开口，所述多个硅钢片21的多个开口叠设，以形成多个绕线槽211；所述线圈绕组22的各线圈绕设于所述多个绕线槽211中，线圈在进行绕设时，以卡设于多个所述开口内，使得所述线圈绕组22的绕线更牢靠。
具体地，可参阅图6，多个所述硅钢片21及所述线圈绕组22可通过灌胶连接呈一体设置，以使得所述动子组件2形成一个整体，以便于进行安装。
在本实施例中，所述线圈绕组22由连续的整线绕设而成，以使所述动子的各侧面所产生的驱动力更均衡，从而使所述动子组件2的移动更稳定。
在本实施例中，所述定子组件3包括多个磁体31，多个所述磁体31分别沿所述第一方向布设于所述底壁上、以及沿所述第一方向布设于各所述旁侧壁上，其中，每相邻的两个所述磁体31的磁性相反，以形成定子磁场。
且为了使所述定子组件3的磁场强度分布更均匀，所述定子组件3还包括设于所述底壁和与其对应的多个所述磁体31之间的第一磁轭32、以及设于各所述旁侧壁与各自对应的多个所述磁体31之间的第二磁轭33。
具体地，在所述定子组件3设置有三个时，三个所述定子组件3分别设于所述安装槽11的所述底壁、及两个所述旁侧壁上，以分别对应从所述动子 的底部、及两个侧部形成驱动力，三侧驱动以使所述直线电机100的输出推动力更大，从而提升所述直线电机100的负载能力。
其中，为了改善各侧所产生的齿槽力的波动，以使所述直线电机100的滑动更稳定，可将至少一个所述定子组件3的多个所述磁体31与另一个所述定子组件3的多个所述磁体31沿所述第一方向呈错位设置，以相互进行齿槽力的补偿，当三个所述定子组件3均呈相应的错位设置时，补偿效果最好。
而且，当所述线圈绕组22由一根整线连续绕设而成，且三个所述定子组件3的多个所述磁体31之间依次呈120度的错位设置时，齿槽力的波动最小，依此设置时，所述直线电机100的性能最好。
在本实施例中，所述动子组件2还包括连接所述动子和所述底座1设置的滑动结构23，所述滑动结构23包括滑动设于所述底座1上、且与所述铁芯相连接的滑动件231；所述滑动件231和所述底座1上其中之一设有滑轨12，其中另一设有与所述滑轨12相配合的滑槽，通过所述滑轨12与所述滑槽配合滑动以使所述动子组件2的滑动更顺畅。当然，所述动子和所述底座1的滑动连接方式不限于上述一种，通过滑轨12的形式结构简单且便于制作。
在一实施例中，所述滑动件231包括设于所述铁芯朝向所述槽口的一侧的承载台2311、以及分别设于所述承载台2311沿所述第一方向的两侧的第一滑块2312和第二滑块2313，所述第一滑块2312和所述第二滑块2113上均设有所述滑槽，且所述第一滑块2312和所述第二滑块2313均凸出于所述安装槽11设置，以便于安装；所述滑轨12包括分别设于所述安装槽11沿所述第一方向的两个槽口侧缘上的第一滑轨12和第二滑轨12，将所述滑轨12设于所述安装槽11的槽口处，以更便于安装。当然，也可根据所述动子的设置空间适当调整所述铁芯与所述底座1的连接位置。
在一实施例中，可参阅图1，所述第一滑块2312和所述第二滑块2313可与所述承载台2311呈可拆卸连接设置，以便于滑块的更换和维护。具体地，所述承载台2311沿所述第一方向的两侧开设有第一限位槽和第二限位槽；所述第一滑块2312和所述第二滑块2313分别对应安装于所述第一限位槽和所述第二限位槽内。
在另一实施例中，所述第一滑块2312和所述第二滑块2313可与所述承载台2311呈一体设置，以使结构更简单，部件设置更少。
本发明结构紧凑、电机功率密度大、推力大；且可直接在所述硅钢片21上进行绕线，工艺简单；且使用对称两根分体式导轨，可提升电机负载。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种直线电机，其特征在于，包括：
    底座，具有一安装槽，所述安装槽具有沿第一方向延伸的槽口，所述底座具有与所述槽口相对的底壁以及沿所述第一方向延伸的两个旁侧壁；
    三个定子组件，位于所述安装槽内，且对应安装于所述底壁和所述两个旁侧壁；以及，
    动子组件，沿所述第一方向滑动安装于所述底座，所述动子组件包括位于所述安装槽内的动子，所述动子包括沿所述第一方向延伸的铁芯、以及沿所述第一方向螺旋绕设于所述铁芯的外周的线圈绕组。
  2. 如权利要求1所述的直线电机，其特征在于，所述铁芯包括多个沿着所述安装槽的深度方向叠设的硅钢片。
  3. 如权利要求2所述的直线电机，其特征在于，所述硅钢片具有沿所述第一方向延伸的两侧，所述多个硅钢片的两侧均一一对应设置有多个开口，所述多个硅钢片的多个开口叠设，以形成多个绕线槽；
    所述线圈绕组的各线圈绕设于所述多个绕线槽中。
  4. 如权利要求1所述的直线电机，其特征在于，所述线圈绕组由连续的整线绕设而成。
  5. 如权利要求1所述的直线电机，其特征在于，所述定子组件包括多个磁体，多个所述磁体分别沿所述第一方向布设于所述底壁上、以及沿所述第一方向布设于各所述旁侧壁上，其中，每相邻的两个所述磁体的磁性相反。
  6. 如权利要求5所述的直线电机，其特征在于，至少一个所述定子组件的多个所述磁体与另一个所述定子组件的多个所述磁体，在所述第一方向上呈错位设置。
  7. 如权利要求5所述的直线电机，其特征在于，所述定子组件还包括设于所述底壁和与其对应的多个所述磁体之间的第一磁轭、以及设于各所述旁侧壁与各自对应的多个所述磁体之间的第二磁轭。
  8. 如权利要求1所述的直线电机，其特征在于，所述动子组件还包括连接所述动子和所述底座设置的滑动结构，所述滑动结构包括滑动设于所述底座上、且与所述铁芯相连接的滑动件；
    所述滑动件和所述底座上其中之一设有滑轨，其中另一设有与所述滑轨相配合的滑槽。
  9. 如权利要求8所述的直线电机，其特征在于，所述滑动件包括设于所述铁芯朝向所述槽口的一侧的承载台、以及分别设于所述承载台沿所述第一方向的两侧的第一滑块和第二滑块，所述第一滑块和所述第二滑块上均设有所述滑槽；
    所述滑轨包括分别设于所述安装槽沿所述第一方向的两个槽口侧缘上的第一滑轨和第二滑轨。
  10. 如权利要求9所述的直线电机，其特征在于，所述承载台沿所述第一方向的两侧开设有第一限位槽和第二限位槽；所述第一滑块和所述第二滑块分别对应安装于所述第一限位槽和所述第二限位槽；和/或，
    所述承载台与所述第一滑块和所述第二滑块呈一体设置。
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