WO2022047936A1 - 直线电机 - Google Patents

直线电机 Download PDF

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Publication number
WO2022047936A1
WO2022047936A1 PCT/CN2020/123391 CN2020123391W WO2022047936A1 WO 2022047936 A1 WO2022047936 A1 WO 2022047936A1 CN 2020123391 W CN2020123391 W CN 2020123391W WO 2022047936 A1 WO2022047936 A1 WO 2022047936A1
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WO
WIPO (PCT)
Prior art keywords
base
sliding seat
fixed
linear motor
iron core
Prior art date
Application number
PCT/CN2020/123391
Other languages
English (en)
French (fr)
Inventor
郑高伟
郭顺
丁洪福
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技（南京）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.)
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Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技（南京）有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022047936A1 publication Critical patent/WO2022047936A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • 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
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers

Definitions

  • the utility model relates to a vibration motor, in particular to a linear motor used for portable consumer electronic products.
  • linear motors are generally used for system feedback, such as mobile phones. Call prompts, information prompts, navigation prompts, vibration feedback from game consoles, etc.
  • the linear motor of the related art includes a base, a sliding seat covered on the base, a stator fixed on the base, a rotor fixed on the sliding seat, and one end of the base close to the sliding seat fixed on the base.
  • the base is provided with a mounting groove recessed from the side close to the sliding seat and away from the sliding seat, and the second sliding rail is mounted on the mounting groove.
  • the second slide rail has no corresponding protective structure, so the external dust and impurities can easily enter the second slide rail and be easily damaged;
  • the purpose of the utility model is to provide a linear motor, which is easy to install and has good protection ability.
  • the present invention provides a linear motor, which comprises a base, a sliding seat covered on the base and enclosing a receiving space with the base, and a sliding seat fixed on the base and close to the base.
  • the first slide rail at one end of the slide base, the second slide rail fixed on the slide base and forming a sliding connection with the first slide rail, the stator assembly and the mover assembly accommodated in the accommodation space, the stator One of the assembly and the mover assembly is fixed to the base and the other is fixed to the carriage, the stator assembly interacting with the mover assembly to drive the carriage relative to the base
  • the seat moves linearly, the base is provided with a mounting groove recessed from the side of the base close to the sliding seat and away from the sliding seat, the mounting groove is communicated with the receiving space, and the first sliding rail is installed and fixed In the installation slot, the linear motor further includes a cover plate fixed on the base and covered on the installation slot.
  • the orthographic projection of the second sliding rail to the sliding seat completely falls into
  • the base includes a bottom wall and a side wall bent and extended from opposite sides of the bottom wall along a movement direction perpendicular to the sliding seat, and the mounting groove is provided on the side wall close to the sliding seat.
  • the sliding seat is at least partially located between the two side walls, and the second sliding rails provided on the sliding seat are respectively disposed opposite to the first sliding rails.
  • the installation groove includes a first surface that is spaced from the cover plate and connected to the inner side of the side wall, and a first surface that is bent and extended in the direction of the cover plate from the first surface and abuts against the cover plate
  • the second surface of the device is connected to the side of the side wall away from the bottom wall, the first surface and the second surface together form the installation groove, the first slide rail At the same time, it abuts against the first surface and the second surface; the first surface, the second surface, the cover plate and the sliding seat together form a protective space.
  • the linear motor further includes a read head and a grating ruler that are opposite to each other and spaced apart, one of the read head and the grating ruler is fixed on the base, and the other is fixed on the sliding seat .
  • the stator assembly includes a magnetic yoke and a plurality of magnetic steels fixed to the magnetic yoke and spaced apart from each other;
  • the mover assembly includes an iron core plate extending from the iron core plate toward the stator assembly A plurality of iron core comb teeth arranged at intervals from each other and a plurality of coils respectively wound and fixed on the iron core comb teeth.
  • the mover assembly further includes two iron core baffles that are respectively bent and extended toward the stator assembly from opposite ends of the iron core plate along the moving direction of the mover assembly.
  • the core comb teeth and the coil are located between the two iron core baffles.
  • the base is provided with a mounting groove recessed from the side close to the sliding seat to the side away from the sliding seat, and the mounting groove is connected to the receiving space.
  • the first slide rail is installed and fixed in the installation slot, and the linear motor further includes a cover plate fixed on the base and covered with the installation slot, that is, the present invention provides a cover plate for the first slide.
  • a slide rail plays a protective role to avoid the influence of external dust and other impurities on it; at the same time, the cover plate and the base forming the installation groove are in a separate structure, which is convenient for processing the installation groove and reduces the processing difficulty; further , Due to its split structure, during the assembly process, the first slide rail is first installed in the installation groove, and then the cover plate is installed, which reduces the installation difficulty and facilitates assembly.
  • Fig. 1 is the three-dimensional structure schematic diagram of the linear motor of the present utility model
  • Fig. 2 is the partial three-dimensional structure exploded schematic diagram of the linear motor of the present utility model
  • Fig. 3 is a sectional view along line A-A in Fig. 1;
  • Fig. 4 is the enlarged schematic diagram of B in Fig. 3;
  • FIG. 5 is a schematic three-dimensional structure diagram of another embodiment of the present invention.
  • the present invention provides a linear motor 100, which includes a base 1, a sliding seat 2, a first sliding rail 3, a second sliding rail 4, a stator assembly 5, and a mover assembly 6 .
  • the sliding seat 2 is covered on the base 1 and forms a receiving space 10 together.
  • the first sliding rail 3 is fixed to one end of the base 1 close to the sliding seat 2 .
  • the second slide rail 4 is fixed to the slide base 2 , and the second slide rail 4 forms a sliding connection with the first slide rail 3 , so that the slide base 2 can slide relative to the base 1 .
  • the base 1 includes a bottom wall 11 and side walls 12 that are bent and extended from opposite sides of the bottom wall 11 along the movement direction of the sliding seat 2, that is, in this embodiment, the first sliding There are two rails 3 and the second sliding rails 4 , and two mounting grooves 13 and cover plates 11 a below are correspondingly provided.
  • the sliding seat 2 is at least partially located between the two side walls 12 , and the second sliding rails 4 provided on the sliding seat 2 are respectively disposed opposite to the first sliding rail 3 .
  • the opposite sides of the seat 2 are slidably connected to the side wall 12 through the first slide rail 3 and the second slide rail 4 .
  • the base 1 is provided with a mounting groove 13 recessed from the side of the base 1 close to the sliding seat 2 away from the sliding seat 2.
  • the mounting groove 13 communicates with the receiving space 10.
  • the mounting The groove 13 is disposed at the top of the side wall 12 close to the sliding seat 2 .
  • the first slide rail 3 is installed and fixed in the installation groove 13, and the linear motor 100 further includes a cover plate 11a fixed on the base 1 and covered with the installation groove 13; preferably, the cover The side of the plate 11a close to the sliding seat 2 is spaced apart from the sliding seat 2 .
  • the cover plate 11a is provided to protect the first slide rail 3, so as to avoid external dust and other impurities from affecting it;
  • the split structure is convenient for processing the installation groove 13, and the processing difficulty is reduced; further, due to the split structure, during the assembly process, the first slide rail 3 is first installed in the installation groove 13, and then the cover plate 11a is installed, Reduce installation difficulty and facilitate assembly.
  • the installation groove 13 includes a first surface 13b spaced from the cover plate 11a and connected to the inner side of the side wall 12, and a first surface 13b bent and extended toward the cover plate 11a from the first surface 13b. Abutting against the second surface 13a of the cover plate 11a, the second surface 13a is connected to the side of the side wall 12 away from the bottom wall 11, the first surface 13b and the second surface 13a Together to form the installation groove 13, the first slide rail 3 abuts against the first surface 13b and the second surface 13a at the same time; the first surface 13b, the second surface 13a, the The cover plate 11a and the sliding seat 2 together form a protective space, which plays a protective role for the first sliding rail 3 and prevents the external dust and other impurities from affecting it.
  • the orthographic projection of the second slide rail 4 to the slide base 2 completely falls into the slide base 2 , that is, the second slide rail 4 is protected by the slide base 2 to avoid external dust and other impurities affect it.
  • the stator assembly 5 and the mover assembly 6 are accommodated in the accommodation space 10 .
  • One of the stator assembly 5 and the mover assembly 6 is fixed to the base 1 , and the other is fixed to the base 1 .
  • the stator assembly 5 is fixed to the base 1
  • the mover assembly 6 is fixed to the sliding seat 2 .
  • the stator assembly 5 interacts with the mover assembly 6 to drive the sliding seat 2 to move linearly relative to the base 1 , which can also be understood as driving the base 1 to move relative to the sliding seat 2 .
  • Linear motion the positions of the stator assembly 5 and the mover assembly 6 can be interchanged, that is, the stator assembly 5 is fixed to the sliding seat 2, and the mover assembly 6 is fixed to the base 1, which is It is easy to think that it is substantially the same.
  • the stator assembly 5 includes a magnetic yoke 51 and a plurality of magnetic steels 52 fixed to the magnetic yoke 51 and spaced apart from each other.
  • the mover assembly 6 includes an iron core plate 61 , a plurality of iron core comb teeth 62 extending from the iron core plate 61 toward the stator assembly 5 and arranged at intervals from each other, and the iron core comb teeth 62 are respectively wound around and fixed to the iron core comb.
  • the multiple coils 63 of the teeth 62 and the multiple iron core comb teeth 6 are arranged along the moving direction of the mover assembly 6 .
  • the mover assembly 6 generates a traveling wave magnetic field, and the traveling wave magnetic field interacts with the mover assembly 6 to generate thrust, thereby driving the sliding seat 2 to perform linear motion relative to the base 1, or driving the base 1 performs linear motion relative to the carriage 2 .
  • the mover assembly 6 further includes two iron core blocks which are respectively bent and extended toward the stator assembly 5 from opposite ends of the iron core plate 61 along the moving direction of the mover assembly 6 .
  • the plate 64, the iron core comb teeth 62 and the coil 63 are located between the two iron core baffles 63, this structure effectively prevents the leakage of part of the traveling wave magnetic field, and guides it towards the stator assembly 5 , thereby increasing the driving performance.
  • the linear motor 100 further includes a read head 8 and a grating ruler 9 that are opposite to each other and spaced apart.
  • One of the read head 8 and the grating ruler 9 is fixed on the base 1, and the other is fixed on the base 1.
  • the sliding seat 2 in this embodiment, the reading head 8 is fixed on the sliding seat 2 , and the grating ruler 9 is fixed on the base 1 .
  • the linear motor 200 has substantially the same structure as the linear motor 100 described above, and the difference lies in that the stator assembly 5 ′ and the read head 8 ′ are both Fixed on the sliding seat 2', the mover assembly 6' and the grating ruler 9' are both fixed on the base 1'.
  • the base is provided with a mounting groove recessed from the side close to the sliding seat to the side away from the sliding seat, and the mounting groove is connected to the receiving space.
  • the first slide rail is installed and fixed in the installation slot, and the linear motor further includes a cover plate fixed on the base and covered with the installation slot, that is, the present invention provides a cover plate for the first slide.
  • a slide rail plays a protective role to avoid the influence of external dust and other impurities on it; at the same time, the cover plate and the base forming the installation groove are in a separate structure, which is convenient for processing the installation groove and reduces the processing difficulty; further , Due to its split structure, during the assembly process, the first slide rail is first installed in the installation groove, and then the cover plate is installed, which reduces the installation difficulty and facilitates assembly.

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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（100），其包括基座（1）、盖设于基座（1）并与基座（1）围成收容空间（10）的滑座（2）、固定于基座（1）靠近滑座（2）一端的第一滑轨（3）、固定于滑座（2）并与第一滑轨（3）形成滑动连接的第二滑轨（4）、收容于收容空间（10）的定子组件（5）和动子组件（6），定子组件（5）和动子组件（6）的其中一个固定于基座（1），其中另一个固定于滑座（2），定子组件（5）与动子组件（6）相互作用以驱动滑座（2）相对于基座（1）直线运动，基座（1）设有由其靠近滑座（2）的一侧向远离滑座（2）凹陷的安装槽（13），安装槽（13）与收容空间（10）连通，第一滑轨（3）安装固定于安装槽（13），直线电机（100）还包括固定于基座（1）并盖设于安装槽（13）的盖板（11a）。上述直线电机便于安装且防护能力好。

Description

直线电机 技术领域
本实用新型涉及一种振动电机，尤其涉及一种用于便携式消费性电子产品的直线电机。
 背景技术
随着电子技术的发展，便携式消费性电子产品越来越受人们的追捧，如手机、掌上游戏机、导航装置或掌上多媒体娱乐设备等，一般都会用到直线电机来做系统反馈，比如手机的来电提示、信息提示、导航提示、游戏机的振动反馈等。
相关技术的直线电机包括基座、盖设于所述基座的滑座、固定于所述基座的定子及固定于所述滑座的转子、固定于所述基座靠近所述滑座一端的第一滑轨、固定于所述滑座并与所述第一滑轨形成滑动连接的第二滑轨，所述定子与所述转子相互作用以驱动所述滑座相对于所述基座直线运动，所述基座设有由靠近所述滑座的一侧向远离所述滑座凹陷的安装槽，所述第二滑轨安装于所述安装槽。
 技术问题
然而所述第二滑轨无相应的防护结构，外界灰尘杂质等易进入第二滑轨，易损坏；或者其保护结构为一体式，导致安装槽的加工难度大同时装配困难。
因此，有必要提供一种新的直线电机解决上述技术问题。
 技术解决方案
本实用新型的目的在于提供一种直线电机，其便于安装且防护能力好。
为了达到上述目的，本实用新型提供了一种直线电机，其包括基座、盖设于所述基座并与所述基座围成收容空间的滑座、固定于所述基座的靠近所述滑座一端的第一滑轨、固定于所述滑座并与所述第一滑轨形成滑动连接的第二滑轨、收容于所述收容空间的定子组件和动子组件，所述定子组件和所述动子组件的其中一个固定于所述基座，其中另一个固定于所述滑座，所述定子组件与所述动子组件相互作用以驱动所述滑座相对于所述基座直线运动，所述基座设有由其靠近所述滑座的一侧向远离所述滑座凹陷的安装槽，所述安装槽与所述收容空间连通，所述第一滑轨安装固定于所述安装槽，所述直线电机还包括固定于所述基座并盖设于所述安装槽的盖板。优选的，所述第二滑轨向所述滑座的正投影完全落入所述滑座内。
优选的，所述基座包括底壁以及由所述底壁的相对两侧沿垂直于所述滑座的运动方向弯折延伸的侧壁，所述安装槽设置于所述侧壁靠近所述滑座一侧的顶端，所述滑座至少部分位于两个所述侧壁之间，且设于所述滑座的所述第二滑轨分别与所述第一滑轨正对设置。
优选的，所述安装槽包括与所述盖板间隔且与所述侧壁的内侧连接的第一面和由所述第一面向所述盖板方向弯折延伸且抵接于所述盖板的第二面，所述第二面与所述侧壁远离所述底壁的一侧连接，所述第一面和所述第二面共同围成所述安装槽，所述第一滑轨同时抵接于所述第一面和所述第二面；所述第一面、所述第二面、所述盖板以及所述滑座共同围成防护空间。
优选的，所述直线电机还包括相互正对且间隔设置的读头和光栅尺，所述读头和所述光栅尺的其中一个固定于所述基座，其中另一个固定于所述滑座。
优选的，所述定子组件包括磁轭以及固定于所述磁轭且相互间隔设置的多个磁钢；所述动子组件包括铁芯板、由所述铁芯板向所述定子组件方向延伸的多个相互间隔设置的铁芯梳齿以及分别绕设固定于所述铁芯梳齿的多个线圈。
优选的，所述动子组件还包括由所述铁芯板沿所述动子组件的运动方向的相对两端分别向所述定子组件方向弯折延伸的两个铁芯挡板，所述铁芯梳齿及所述线圈位于两个所述铁芯挡板之间。
 有益效果
与相关技术相比，本实用新型的直线电机中，所述基座设有由其靠近所述滑座的一侧向远离所述滑座凹陷的安装槽，所述安装槽与所述收容空间连通，所述第一滑轨安装固定于所述安装槽，所述直线电机还包括固定于所述基座并盖设于所述安装槽的盖板，即本实用新型通过设置盖板对第一滑轨起防护作用，避免外界的灰尘等杂质对其造成影响；同时所述盖板与所述形成所述安装槽的基座呈分体结构，便于加工安装槽，加工难度降低；进一步的，由于其呈分体结构，在装配过程中，先将第一滑轨装设至安装槽内，再安装盖板，降低安装难度，便于装配。
 附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例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实用新型的一些实施例，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获得其它的附图，其中：
图1为本实用新型直线电机的立体结构示意图；
图2为本实用新型直线电机的部分立体结构分解示意图；
图3为沿图1中A-A线的剖示图；
图4为图3中B的放大示意图；
图5为本实用新型另一实施例的立体结构示意图。
 本发明的实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请同时在图1-3所示，本实用新型提供一种直线电机100，其包括基座1、滑座2、第一滑轨3、第二滑轨4、定子组件5、动子组件6。
所述滑座2盖设于所述基座1并共同形成收容空间10。
所述第一滑轨3固定于所述基座1靠近所述滑座2一端。
第二滑轨4固定于所述滑座2，所述第二滑轨4与所述第一滑轨3形成滑动连接，从而使得所述滑座2可相对于所述基座1滑动。
所述基座1包括底壁11以及由所述底壁11的相对两侧沿垂直于所述滑座2的运动方向弯折延伸的侧壁12，即本实施例中，所述第一滑轨3和所述第二滑轨4均设置为两个，下文的安装槽13以及盖板11a对应设置两个。所述滑座2至少部分位于两个所述侧壁12之间，且设于所述滑座2的所述第二滑轨4分别与所述第一滑轨3正对设置，所述滑座2的相对两侧通过所述第一滑轨3、所述第二滑轨4与所述侧壁12形成滑动连接。
所述基座1设有由其靠近所述滑座2的一侧向远离所述滑座2凹陷的安装槽13，所述安装槽13与所述收容空间10连通，具体的，所述安装槽13设置于所述侧壁12靠近所述滑座2一侧的顶端。所述第一滑轨3安装固定于所述安装槽13，所述直线电机100还包括固定于所述基座1并盖设于所述安装槽13的盖板11a；优选的，所述盖板11a靠近所述滑座2的一侧与所述滑座2间隔设置。即本实用新型通过设置盖板11a对第一滑轨3起防护作用，避免外界的灰尘等杂质对其造成影响；同时所述盖板11a与所述形成所述安装槽13的基座1呈分体结构，便于加工安装槽13，加工难度降低；进一步的，由于其呈分体结构，在装配过程中，先将第一滑轨装3设至安装槽13内，再安装盖板11a，降低安装难度，便于装配。
具体的，所述安装槽13包括与所述盖板11a间隔且与所述侧壁12的内侧连接的第一面13b和由所述第一面13b向所述盖板11a方向弯折延伸且抵接于所述盖板11a的第二面13a，所述第二面13a与所述侧壁12远离所述底壁11的一侧连接，所述第一面13b和所述第二面13a共同围成所述安装槽13，所述第一滑轨3同时抵接于所述第一面13b和所述第二面13a；所述第一面13b、所述第二面13a、所述盖板11a以及所述滑座2共同围成防护空间，对所述第一滑轨3起防护作用，避免外界的灰尘等杂质对其造成影响。
本实施例中，所述第二滑轨4向所述滑座2的正投影完全落入所述滑座2内，即所述第二滑轨4受到滑座2的保护，避免外界的灰尘等杂质对其造成影响。
所述定子组件5与所述动子组件6收容于所述收容空间10，所述定子组件5和所述动子组件6的其中一个固定于所述基座1，其中另一个固定于所述滑座2。本实施例中，所述定子组件5固定于所述基座1，所述动子组件6固定于所述滑座2。所述定子组件5与所述动子组件6相互作用以驱动所述滑座2相对于所述基座1作直线运动，也可理解为驱动所述基座1相对于所述滑座2作直线运动。当然，所述定子组件5与所述动子组件6的位置可互换，即所述定子组件5固定于所述滑座2，所述动子组件6固定于所述基座1，这是容易想到的，其实质性相同。
本实施方式，所述定子组件5包括磁轭51以及固定于所述磁轭51且相互间隔设置的多个磁钢52。
所述动子组件6包括铁芯板61、由所述铁芯板61向所述定子组件5方向延伸的多个相互间隔设置的铁芯梳齿62以及分别绕设固定于所述铁芯梳齿62的多个线圈63，多个所述铁芯梳齿6沿所述动子组件6的运动方向排布。
所述动子组件6产生行波磁场，行波磁场与动子组件6相互作用，产生推力，从而驱动所述滑座2相对于所述基座1进行直线运动，或者说驱动所述基座1相对于所述滑座2进行直线运动。
更优的，所述动子组件6还包括由所述铁芯板61沿所述动子组件6的运动方向的相对两端分别向所述定子组件5方向弯折延伸的两个铁芯挡板64，所述铁芯梳齿62及所述线圈63位于两个所述铁芯挡板63之间，该结构有效的阻止了部分行波磁场的外泄，并将其导向朝定子组件5，从而增加了驱动性能。
所述直线电机100还包括相互正对且间隔设置的读头8和光栅尺9，所述读头8和所述光栅尺9的其中一个固定于所述基座1，其中另一个固定于所述滑座2，本实施例中，读头8固定于滑座2，光栅尺9固定于所述基座1。
参图5所示，为本实用新型另一实施例的立体结构示意图，直线电机200与上述直线电机100的结构大致相同，其不同之处在于，所述定子组件5’和读头8’均固定于所述滑座2’，所述动子组件6’和光栅尺9’均固定于所述基座1’。
与相关技术相比，本实用新型的直线电机中，所述基座设有由其靠近所述滑座的一侧向远离所述滑座凹陷的安装槽，所述安装槽与所述收容空间连通，所述第一滑轨安装固定于所述安装槽，所述直线电机还包括固定于所述基座并盖设于所述安装槽的盖板，即本实用新型通过设置盖板对第一滑轨起防护作用，避免外界的灰尘等杂质对其造成影响；同时所述盖板与所述形成所述安装槽的基座呈分体结构，便于加工安装槽，加工难度降低；进一步的，由于其呈分体结构，在装配过程中，先将第一滑轨装设至安装槽内，再安装盖板，降低安装难度，便于装配。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (7)

  1. 一种直线电机，其包括基座、盖设于所述基座并与所述基座围成收容空间的滑座、固定于所述基座的靠近所述滑座一端的第一滑轨、固定于所述滑座并与所述第一滑轨形成滑动连接的第二滑轨、收容于所述收容空间的定子组件和动子组件，所述定子组件和所述动子组件的其中一个固定于所述基座，其中另一个固定于所述滑座，所述定子组件与所述动子组件相互作用以驱动所述滑座相对于所述基座直线运动，其特征在于，所述基座设有由其靠近所述滑座的一侧向远离所述滑座凹陷的安装槽，所述安装槽与所述收容空间连通，所述第一滑轨安装固定于所述安装槽，所述直线电机还包括固定于所述基座并盖设于所述安装槽的盖板。
  2. 根据权利要求1所述的直线电机，其特征在于，所述第二滑轨向所述滑座的正投影完全落入所述滑座内。
  3. 根据权利要求1所述的直线电机，其特征在于，所述基座包括底壁以及由所述底壁的相对两侧沿垂直于所述滑座的运动方向弯折延伸的侧壁，所述安装槽设置于所述侧壁靠近所述滑座一侧的顶端，所述滑座至少部分位于两个所述侧壁之间，且设于所述滑座的所述第二滑轨分别与所述第一滑轨正对设置。
  4. 根据权利要求3所述的直线电机，其特征在于，所述安装槽包括与所述盖板间隔且与所述侧壁的内侧连接的第一面和由所述第一面向所述盖板方向弯折延伸且抵接于所述盖板的第二面，所述第二面与所述侧壁远离所述底壁的一侧连接，所述第一面和所述第二面共同围成所述安装槽，所述第一滑轨同时抵接于所述第一面和所述第二面；所述第一面、所述第二面、所述盖板以及所述滑座共同围成防护空间。
  5. 根据权利要求1所述的直线电机，其特征在于，所述直线电机还包括相互正对且间隔设置的读头和光栅尺，所述读头和所述光栅尺的其中一个固定于所述基座，其中另一个固定于所述滑座。
  6. 根据权利要求1所述的直线电机，其特征在于，所述定子组件包括磁轭以及固定于所述磁轭且相互间隔设置的多个磁钢；所述动子组件包括铁芯板、由所述铁芯板向所述定子组件方向延伸的多个相互间隔设置的铁芯梳齿以及分别绕设固定于所述铁芯梳齿的多个线圈。
  7. 根据权利要求6所述的直线电机，其特征在于，所述动子组件还包括由所述铁芯板沿所述动子组件的运动方向的相对两端分别向所述定子组件方向弯折延伸的两个铁芯挡板，所述铁芯梳齿及所述线圈位于两个所述铁芯挡板之间。
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