WO2022006837A1 - Linear motor - Google Patents

Linear motor Download PDF

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Publication number
WO2022006837A1
WO2022006837A1 PCT/CN2020/101255 CN2020101255W WO2022006837A1 WO 2022006837 A1 WO2022006837 A1 WO 2022006837A1 CN 2020101255 W CN2020101255 W CN 2020101255W WO 2022006837 A1 WO2022006837 A1 WO 2022006837A1
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WO
WIPO (PCT)
Prior art keywords
cover plate
fixed
coil
magnetic steel
vibrator
Prior art date
Application number
PCT/CN2020/101255
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French (fr)
Chinese (zh)
Inventor
王尧
马杰
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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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
Priority to PCT/CN2020/101255 priority Critical patent/WO2022006837A1/en
Publication of WO2022006837A1 publication Critical patent/WO2022006837A1/en

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    • 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
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets

Definitions

  • the utility model relates to the field of motors, in particular to a linear motor.
  • Portable consumer electronic products such as mobile phones, handheld game consoles, navigation devices or handheld multimedia entertainment devices, generally use linear motors for system feedback, such as mobile phone call alerts, game console vibration feedback, etc.
  • linear motors such as cylindrical iron core motors, hollow cup motors and linear linear motors.
  • the vibration direction of the traditional linear linear motor is single, which can only vibrate in a fixed direction, and cannot be adjusted to a specified vibration direction. Therefore, it is necessary to provide a linear motor that can vibrate in an oblique direction in a plane.
  • the purpose of the utility model is to provide a linear motor which can vibrate in an oblique direction in a plane.
  • a linear motor includes a first cover plate, a casing fixed on the first cover plate and forming a first receiving space with the first cover plate, A vibrator in the accommodation space, a stator for driving the vibrator to vibrate, and a spring bracket fixed on the casing and elastically supporting the vibrator, the stator at least includes a first driving force fixed to the casing and providing a first driving force to drive the vibrator to vibrate in a first direction
  • the first coil and the second coil fixed with the first cover plate and providing a second driving force to drive the vibrator to vibrate in a second direction perpendicular to the first direction
  • the vibrator includes a second accommodating space formed through The mass block, the first magnetic steel fixed in the second receiving space and facing and spaced apart from the first coil along the third direction perpendicular to the first direction and the second direction, and the first magnetic steel fixed on the A second magnetic steel in the second receiving space and facing and spaced apart from the second coil in the third direction, the first magnetic steel and the second magnetic
  • the adjacent magnets have opposite polarities and form a splicing line.
  • the third direction is the thickness direction of the magnets.
  • the splicing line of the first magnet is not parallel to the second magnet.
  • the splicing line of the magnetic steel, the mass block includes a first side wall arranged oppositely and a second side wall located between the first side walls and adjoining the first side wall end to end to enclose the second accommodation space side walls, the first side walls are respectively located on both sides of the first magnetic steel relative to the first direction, and the second side walls are located on both sides of the first magnetic steel relative to the second direction;
  • the spring support It includes a first elastic arm that is opposite to the first side wall and is spaced apart, and a second elastic arm that is bent and extended from one end of the first elastic arm and is opposite to the adjacent second side wall.
  • One end of the first elastic arm away from the second elastic arm is fixed with the casing, and one end of the second elastic arm away from the first elastic arm is fixed with the second side wall; the first driving force is connected to the second side wall.
  • the second driving force drives the vibrator together.
  • the spring bracket further comprises a first welding piece fixed on one end of the first elastic arm away from the second elastic arm and away from the casing, and a first welding piece fixed at the end of the second elastic arm away from the first elastic arm. the elastic arm and the second solder tab at one end of the second side wall away from the second side wall.
  • the linear motor further includes a conductive terminal, and the conductive terminal includes a first conductive terminal electrically connected to the first coil and a second conductive terminal electrically connected to the second coil.
  • the first coil and the second coil are both rectangular coils, and the long axis of the first coil is perpendicular to the long axis of the second coil.
  • the splicing line of the first magnetic steel is the symmetry line of the first magnetic steel
  • the splicing line of the second magnetic steel is the symmetry line of the second magnetic steel
  • the vibrator further includes a bracket fixed in the second receiving space and respectively fixed with the first magnetic steel and the second magnetic steel, the first magnetic steel is fixed on the bracket away from the first magnetic steel.
  • the second magnetic steel is fixed on the side of the bracket close to the first cover plate, and the magnetic permeability of the bracket is greater than that of the mass block.
  • the housing includes a second cover plate disposed opposite to the first cover plate, supports the second cover plate and the first cover plate and is connected with the second cover plate and the first cover plate.
  • a cover plate forms a side wall of the first receiving space
  • the stator is disposed between the second cover plate and the first cover plate
  • the first conductive terminal is fixed on the second cover plate close to the At one end of the stator
  • the second conductive terminal is fixed on one end of the first cover plate close to the stator
  • the first conductive terminal extends out of the casing and is connected to the second conductive terminal extending out of the casing.
  • the stator further includes a first iron core installed in the first coil, fixed on the side of the second cover plate close to the stator and fixed with the first iron core and the first coil.
  • the mass block further includes a first surface close to one end of the second cover plate, and a second surface opposite to the first surface, and the second accommodation space includes a direction from the first surface toward the first cover plate.
  • a first stepped hole extending from the second surface and accommodating the first coil, a second stepped hole extending from the second surface toward the second cover plate and accommodating the second coil, and extending from the second stepped hole toward the second cover plate.
  • a fixing groove formed concavely in the direction close to the second cover plate and fixed with the bracket.
  • the bracket includes a support portion for fixing the first magnetic steel and the second magnetic steel, and an extension portion extending outward from the support portion and fixed with the fixing groove; the vibrator further includes a fixing portion. a damping element between the mass block and the spring bracket.
  • the utility model provides a first driving force to drive the vibrator to vibrate in the first direction by arranging the first coil, and provides a second driving force to drive the vibrator to vibrate along the first direction by arranging the second coil.
  • Vibration in the second direction by arranging second side walls on the mass block respectively located on both sides of the first magnetic steel opposite to the second direction, and setting a spring whose one end is fixed to the second side wall and the other end is fixed to the shell and by adjusting the magnitude of the first driving force and the second driving force, the vibrator is supported by the spring bracket to vibrate in an oblique direction in the plane where the first direction and the second direction are located.
  • FIG. 1 is a schematic diagram of the motor structure of the present invention
  • FIG. 2 is a schematic exploded view of the motor structure of the present invention
  • Fig. 3 is a schematic cross-sectional view at A-A in Fig. 1;
  • Fig. 4 is a schematic sectional view at B-B in Fig. 1;
  • FIG. 5 is a schematic structural diagram of the motor concealing second cover of the present invention.
  • FIG. 6 is a schematic structural diagram of a motor concealing a first cover of the present invention.
  • FIG. 7 is a top view of the motor hidden second cover of the present invention.
  • FIG. 8 is a schematic structural diagram of the stator combined with the magnetic steel and the bracket of the present invention.
  • Fig. 9 is the structural schematic diagram of the mass block of the present invention.
  • Fig. 10 is the vibrator vibrating schematic diagram of the utility model along 45 ° direction;
  • FIG. 11 is a schematic diagram of the magnetization of the magnetic steel of the present invention.
  • the present invention provides a linear motor 100 , referring to FIGS. 1 to 11 , the motor 100 includes a first cover 11 , a housing 10 , a vibrator 20 , a stator 30 , a conductive terminal 40 and a spring support 50 .
  • the casing 10 is fixed to the first cover plate 11 , and the casing 10 and the first cover plate 11 form a first accommodation space 14 , and the vibrator 20 is accommodated in the first accommodation space 14 .
  • the stator 30 drives the vibrator 20 to vibrate, the spring bracket 50 is fixed to the housing 10 , and the spring bracket 50 plays an elastic supporting role for the vibrator 20 .
  • the housing 10 includes a second cover plate 12 and a side wall 13 , the first cover plate 11 and the second cover plate 12 are disposed opposite to each other, and the side wall 13 supports the second cover plate 13 .
  • the cover plate 12 and the side wall 13 of the first cover plate 11 , and the side wall 13 , the first cover plate 11 and the second cover plate 12 form a first receiving space 14 .
  • the side wall 13 includes a first side wall 131 and a second side wall 132 , the first side wall 131 and the second side wall 132 are both L-shaped structures, and the first side wall 131 connected to the second side wall 132 .
  • the stator 30 is disposed between the second cover plate 12 and the first cover plate 11 .
  • the vibrator 20 includes a mass block 21 , a damping member 22 , a bracket 23 , a first magnetic steel 24 and a second magnetic steel 25 ; Installed between the second cover plate 12 and the first cover plate 11 , the damping member 22 is fixed between the mass block 21 and the spring bracket 50 .
  • the bracket 23 is fixed to the second receiving space 211 and is respectively fixed to the first magnetic steel 24 and the second magnetic steel 25 , and the first magnetic steel 24 is fixed to the bracket 23 away from the first cover plate 11 .
  • the second magnetic steel 25 is fixed on the side of the bracket 23 close to the first cover plate 11, and the bracket 23 is made of a high magnetic permeability material.
  • the bracket The magnetic permeability is greater than the mass block to optimize the magnetic field performance of the stator 30 , which can also be made of a non-magnetic conductive material, and only serves to support and fix the first magnetic steel 24 and the second magnetic steel 25 .
  • the mass block 21 includes a second receiving space 211 , a first surface 212 , a second surface 213 , a first side wall 214 and a second side wall 215 , the first side wall 215 .
  • 214 are disposed opposite to each other, the second side wall 215 is located between the first side walls 214 , and the second side wall 215 and the first side wall 214 are end-to-end to enclose the second receiving space 211 .
  • the first side walls 214 are respectively located on both sides of the first magnetic steel 24 relative to the first direction X
  • the second side walls 215 are located on both sides of the first magnetic steel 24 relative to the second direction Y
  • the first sidewall 214 and the second sidewall 215 are located between the first surface 212 and the second surface 213 .
  • the first surface 212 is the end of the mass block 21 close to the second cover plate 12
  • the second surface 213 is the end of the mass block 21 close to the first cover plate 11
  • the mass block 21 penetrates through to form a second housing Space 211.
  • the second accommodating space 211 includes a first stepped hole 2111 , a second stepped hole 2112 and a fixing groove 2113 .
  • the first stepped hole 2111 extends from the first surface 212 toward the first cover plate 11 , and the The first stepped hole 2111 accommodates the first coil 31 , the second stepped hole 2112 extends from the second surface 213 toward the second cover 12 , and the second stepped hole 2112 accommodates the first coil 31 .
  • the fixing slot 2113 is recessed from the second stepped hole 2112 toward the second cover plate 12 , and the fixing slot 2113 is fixed to the bracket 23 .
  • the stator 30 includes a first coil 31 , a second coil 32 , a first magnetic conductive sheet 33 , a second magnetic conductive sheet 34 , a first iron core 35 and a second iron core 36.
  • the first coil 31 and the second coil 32 are both rectangular coils
  • the long axis L1 of the first coil 31 is perpendicular to the long axis L2 of the second coil 32
  • the The long axis L1 of the first coil 31 is perpendicular to the first direction X
  • the long axis of the second coil 32 is perpendicular to the second direction Y.
  • the first coil 31 is fixed to the housing 10 , and the first coil 31 provides a first driving force F1 to drive the vibrator 20 to vibrate along the first direction X.
  • the second coil 32 is fixed to the first cover plate 11 , and the second coil 32 provides a second driving force F2 to drive the vibrator 20 to vibrate in a second direction Y perpendicular to the first direction X, the vibrator
  • the vibration direction of 20 is the direction of the resultant force F of the first driving force F1 and the second driving force F2.
  • the first iron core 35 is installed in the first coil 31
  • the second iron core 36 is installed in the second coil 32
  • the first magnetic conductive sheet 33 is fixed on the second cover plate 12 close to the stator 30 side
  • the first magnetic conductive sheet 33 is fixed with the first iron core 35 and the first coil 31
  • the second magnetic conductive sheet 34 is fixed on the side of the first cover plate 11 close to the stator 30,
  • the second magnetic conductive sheet 34 is fixed to the second iron core 36 and the second coil 32
  • the bracket 23 is disposed between the first coil 31 and the second coil 32 .
  • the bracket 23 includes a support portion 231 and an extension portion 232 , the support portion 231 fixes the first magnetic steel 24 and the second magnetic steel 25 , the extension portion 232 extends outward from the support portion 231 , and The extension portion 232 is fixed with the fixing groove 2113 .
  • the first magnetic steel 24 is fixed on the side of the bracket 23 away from the first cover plate 11 , and the first magnetic steel 24 is spaced from the first coil 31 , and the second magnetic steel 25 is fixed on the side of the bracket 23 .
  • the bracket 23 is close to one side of the first cover plate 11 , the second magnetic steel 25 is spaced apart from the second coil, the first magnetic steel 24 is fixed in the second receiving space 211 , and The first magnetic steel 24 is directly opposite and spaced from the first coil 31 along the third direction Z, the third direction Z is perpendicular to the first direction Y and the second direction X, and the third direction Z is perpendicular to the first direction Y and the second direction X.
  • the three directions Z are the thickness directions of the magnetic steel.
  • the second magnetic steel 25 is fixed in the second receiving space 211 , and the second magnetic steel 25 is arranged along the third direction Z facing the second coil 32 at intervals.
  • the first magnetic steel 24 and the second magnetic steel 25 are respectively formed by splicing at least two magnetic steels that are magnetized along the third direction Z and have opposite polarities.
  • the magnetic steels have opposite polarities and form a splicing line L3 , and the splicing line L3 of the first magnetic steel 24 is not parallel to the splicing line L3 of the second magnetic steel 25 .
  • the splicing line L3 of the first magnetic steel 24 and the second magnetic steel 25 is perpendicular to each other.
  • the splicing line L3 of the first magnetic steel 24 is the line of symmetry of the first magnetic steel 24
  • the splicing line L3 of the second magnetic steel 25 is the line of symmetry of the second magnetic steel 25 .
  • the first driving force F1 and the second driving force F2 act together on the vibrator 20 to cause the vibrator 20 to move obliquely.
  • the vibrator moves along the same direction as the second driving force F2.
  • One direction X vibrates at an included angle of 45°.
  • the conductive terminal 40 includes a first conductive terminal 41 and a second conductive terminal 42 , the first conductive terminal 41 is fixed to an end of the second cover plate 12 close to the stator 30 , the second conductive terminal 41 is The conductive terminal 42 is fixed on one end of the first cover 11 close to the stator 30 .
  • the first conductive terminal 41 extends out of the casing 10 and is electrically connected to the second conductive terminal 42 extending out of the casing 10 .
  • the first conductive terminal 41 is electrically connected to the first coil 31
  • the second conductive terminal 42 is electrically connected to the second coil 32
  • the first conductive terminal 41 controls the The magnitude of the first driving force F1 is used to drive the vibrator 20 to vibrate in the first vibration mode
  • the second conductive terminal 42 controls the magnitude of the second driving force F2 to drive the vibrator 20 to vibrate in the second vibration mode.
  • the modal frequency of the first vibration mode is defined as a
  • the modal frequency of the second vibration mode is defined as b, which satisfies the relationship:
  • Hz is the unit of Hertz.
  • the spring bracket 50 includes a first elastic arm 51 , a second elastic arm 52 , a first welding piece 53 and a second welding piece 54 , and the first elastic arm 51 is opposite to the first side wall 214 .
  • the first elastic arm 51 is spaced apart from the first side wall 214 .
  • the second elastic arm 52 is bent and extended from one end of the first elastic arm 51 , and the second elastic arm 52 is disposed opposite to the adjacent second side wall 215 .
  • One end of the first elastic arm 51 away from the second elastic arm 52 is fixed to the housing 10
  • one end of the second elastic arm 52 away from the first elastic arm 51 is fixed to the second side wall 215 .
  • the first welding piece 53 is fixed to the end of the first elastic arm 51 away from the second elastic arm 52 , and the first welding piece 53 is located at the end of the first elastic arm 51 away from the casing 10 .
  • the second welding piece 54 is fixed to the end of the second elastic arm 52 away from the first elastic arm 51 , and the second welding piece 54 is located at the second elastic arm 52 away from the second side wall 215 at one end.
  • the present invention provides the first driving force F1 by setting the first coil 31 to drive the vibrator 20 to vibrate in the first direction X, and provides the second driving force F2 by setting the second coil 32 to drive the vibrator 20 along the first direction.
  • Vibration in the second direction Y perpendicular to X by disposing second side walls 215 on the mass block 21 on both sides of the first magnetic steel 24 opposite to the second direction Y, and setting one end of the second side wall 215 with the second side wall 215
  • the spring bracket 50 is fixed and the other end is fixed to the casing 10, and by adjusting the magnitude of the first driving force F1 and the second driving force F2, the vibrator 20 is supported by the spring bracket 50 in the first direction X and the second direction Y. vibrates in the oblique direction in the plane.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

A linear motor (100), comprising a first cover plate (11), a housing (10) fixed to the first cover plate (11) and forming a first accommodation space (14) with the first cover plate (11), a vibrator (20) accommodated in the first accommodation space (14), a stator (30) driving the vibrator (20) to vibrate, and a spring support (50) fixed to the housing (10) and elastically supporting the vibrator (20); the stator (30) at least comprises a first coil (31) fixed to the housing (10) and providing a first driving force to drive the vibrator (20) to vibrate in a first direction (X), and a second coil (32) fixed to the first cover plate (11) and providing a second driving force to drive the vibrator (20) to vibrate in a second direction (Y) perpendicular to the first direction (X); and the vibrator (20) comprises a mass block (21), a first magnetic steel (24) and a second magnetic steel (25). By adjusting the magnitude of the first driving force and the second driving force, the vibrator (20) can move obliquely under the combined action of the first driving force and the second driving force.

Description

一种线性马达a linear motor 【技术领域】【Technical field】
本实用新型涉及马达领域，特别涉及一种线性马达。The utility model relates to the field of motors, in particular to a linear motor.
【背景技术】【Background technique】
便携式消费性电子产品，如手机、掌上游戏机、导航装置或者掌上多媒体娱乐设备等，一般会用到线性马达来做***反馈，比如手机的来电提示、游戏机的振动反馈等等，其中所用到的马达，主要有柱状铁心马达、空心杯马达和线性线性马达等几种类型。传统线性线性马达的振动方向单一，只能沿一固定方向振动，无法调整为指定的振动方向。因此，有必要提供一种可以在平面内沿斜向振动的线性马达。Portable consumer electronic products, such as mobile phones, handheld game consoles, navigation devices or handheld multimedia entertainment devices, generally use linear motors for system feedback, such as mobile phone call alerts, game console vibration feedback, etc. There are several types of motors such as cylindrical iron core motors, hollow cup motors and linear linear motors. The vibration direction of the traditional linear linear motor is single, which can only vibrate in a fixed direction, and cannot be adjusted to a specified vibration direction. Therefore, it is necessary to provide a linear motor that can vibrate in an oblique direction in a plane.
【实用新型内容】【Content of utility model】
本实用新型的目的在于提供一种可以在平面内沿斜向振动的线性马达。The purpose of the utility model is to provide a linear motor which can vibrate in an oblique direction in a plane.
本实用新型的技术方案如下：一种线性马达，其包括第一盖板、固定于所述第一盖板并与所述第一盖板形成第一收容空间的外壳、收容于所述第一收容空间的振子、驱动所述振子振动的定子及固定于所述外壳且弹性支撑所述振子的弹簧支架，所述定子至少包括与外壳固定且提供第一驱动力以驱动振子沿第一方向振动的第一线圈及与所述第一盖板固定且提供第二驱动力以驱动振子沿与所述第一方向垂直的第二方向振动的第二线圈，所述振子包括贯穿形成第二收容空间的质量块、固定于所述第二收容空间且沿垂直所述第一方向和所述第二方向的第三方向与所述第一线圈正对且间隔的第一磁钢及固定于所述第二收容空间且沿第三方向与所述第二线圈正对且间隔的第二磁钢，所述第一磁钢和所述第二磁钢分别由至少两块沿第三方向充磁的磁钢拼接而成，拼接的相邻所述磁钢极性相反且形成拼接线，所述第三方向为磁钢的厚度方向，所述第一磁钢的拼接线不平行于所述第二磁钢的拼接线，所述质量块包括相对设置的第一侧壁以及位于所述 第一侧壁之间且与所述第一侧壁首尾相接围成所述第二收容空间的第二侧壁，所述第一侧壁分别位于所述第一磁钢相对第一方向的两侧，所述第二侧壁位于所述第一磁钢相对第二方向的两侧；所述弹簧支架包括与所述第一侧壁相对且间隔设置的第一弹力臂、以及自所述第一弹力臂的一端弯折延伸并与相邻所述第二侧壁相对的第二弹力臂，所述第一弹力臂远离所述第二弹力臂的一端与所述外壳固定，所述第二弹力臂远离所述第一弹力臂的一端与所述第二侧壁固定；所述第一驱动力与所述第二驱动力共同驱动所述振子。The technical solution of the present invention is as follows: a linear motor includes a first cover plate, a casing fixed on the first cover plate and forming a first receiving space with the first cover plate, A vibrator in the accommodation space, a stator for driving the vibrator to vibrate, and a spring bracket fixed on the casing and elastically supporting the vibrator, the stator at least includes a first driving force fixed to the casing and providing a first driving force to drive the vibrator to vibrate in a first direction The first coil and the second coil fixed with the first cover plate and providing a second driving force to drive the vibrator to vibrate in a second direction perpendicular to the first direction, the vibrator includes a second accommodating space formed through The mass block, the first magnetic steel fixed in the second receiving space and facing and spaced apart from the first coil along the third direction perpendicular to the first direction and the second direction, and the first magnetic steel fixed on the A second magnetic steel in the second receiving space and facing and spaced apart from the second coil in the third direction, the first magnetic steel and the second magnetic steel are respectively composed of at least two magnets magnetized along the third direction The magnets are spliced together. The adjacent magnets have opposite polarities and form a splicing line. The third direction is the thickness direction of the magnets. The splicing line of the first magnet is not parallel to the second magnet. The splicing line of the magnetic steel, the mass block includes a first side wall arranged oppositely and a second side wall located between the first side walls and adjoining the first side wall end to end to enclose the second accommodation space side walls, the first side walls are respectively located on both sides of the first magnetic steel relative to the first direction, and the second side walls are located on both sides of the first magnetic steel relative to the second direction; the spring support It includes a first elastic arm that is opposite to the first side wall and is spaced apart, and a second elastic arm that is bent and extended from one end of the first elastic arm and is opposite to the adjacent second side wall. One end of the first elastic arm away from the second elastic arm is fixed with the casing, and one end of the second elastic arm away from the first elastic arm is fixed with the second side wall; the first driving force is connected to the second side wall. The second driving force drives the vibrator together.
更优地，所述弹簧支架还包括固定于所述第一弹力臂远离所述第二弹力臂且背离所述外壳一端的第一焊片及固定于所述第二弹力臂远离所述第一弹力臂且背离所述第二侧壁一端的第二焊片。More preferably, the spring bracket further comprises a first welding piece fixed on one end of the first elastic arm away from the second elastic arm and away from the casing, and a first welding piece fixed at the end of the second elastic arm away from the first elastic arm. the elastic arm and the second solder tab at one end of the second side wall away from the second side wall.
更优地，所述线性马达还包括导电端子，所述导电端子包括与所述第一线圈电连接的第一导电端子及与所述第二线圈电连接的第二导电端子。More preferably, the linear motor further includes a conductive terminal, and the conductive terminal includes a first conductive terminal electrically connected to the first coil and a second conductive terminal electrically connected to the second coil.
更优地，所述第一线圈与所述第二线圈均为矩形线圈，所述第一线圈的长轴垂直于所述第二线圈的长轴。More preferably, the first coil and the second coil are both rectangular coils, and the long axis of the first coil is perpendicular to the long axis of the second coil.
更优地，所述第一磁钢的拼接线为所述第一磁钢的对称线，所述第二磁钢的拼接线为所述第二磁钢的对称线。More preferably, the splicing line of the first magnetic steel is the symmetry line of the first magnetic steel, and the splicing line of the second magnetic steel is the symmetry line of the second magnetic steel.
更优地，所述振子还包括固定于所述第二收容空间并分别与所述第一磁钢和第二磁钢固定的支架，所述第一磁钢固定于所述支架背离所述第一盖板的一侧，所述第二磁钢固定于所述支架靠近所述第一盖板的一侧，所述支架的磁导率大于所述质量块。More preferably, the vibrator further includes a bracket fixed in the second receiving space and respectively fixed with the first magnetic steel and the second magnetic steel, the first magnetic steel is fixed on the bracket away from the first magnetic steel. On one side of a cover plate, the second magnetic steel is fixed on the side of the bracket close to the first cover plate, and the magnetic permeability of the bracket is greater than that of the mass block.
更优地，所述外壳包括与所述第一盖板正对设置的第二盖板、支撑所述第二盖板与所述第一盖板并与所述第二盖板和所述第一盖板形成第一收容空间的侧壁，所述定子设置于所述第二盖板与所述第一盖板之间，所述第一导电端子固定于所述第二盖板靠近所述定子的一端，所述第二导电端子固定于所述第一盖板靠近所述定子的一端，所述第一导电端子延伸出所述外壳并与延伸出所述外壳的第二导电端子相连。More preferably, the housing includes a second cover plate disposed opposite to the first cover plate, supports the second cover plate and the first cover plate and is connected with the second cover plate and the first cover plate. A cover plate forms a side wall of the first receiving space, the stator is disposed between the second cover plate and the first cover plate, and the first conductive terminal is fixed on the second cover plate close to the At one end of the stator, the second conductive terminal is fixed on one end of the first cover plate close to the stator, the first conductive terminal extends out of the casing and is connected to the second conductive terminal extending out of the casing.
更优地，所述定子还包括装设于第一线圈内的第一铁芯、固定于所述 第二盖板靠近所述定子一侧并与所述第一铁芯和第一线圈相固定的第一导磁片、装设于第二线圈内的第二铁芯及固定于所述第一盖板靠近所述定子一侧并与所述第二铁芯和第二线圈相固定的第二导磁片。More preferably, the stator further includes a first iron core installed in the first coil, fixed on the side of the second cover plate close to the stator and fixed with the first iron core and the first coil. The first magnetic conductive sheet, the second iron core installed in the second coil, and the first cover fixed to the side of the first cover plate close to the stator and fixed with the second iron core and the second coil. Two magnetic sheets.
更优地，所述质量块还包括靠近第二盖板一端的第一表面、与第一表面相对的第二表面，所述第二收容空间包括自所述第一表面向靠近第一盖板方向延伸并***述第一线圈的第一阶梯孔、自所述第二表面向靠近第二盖板方向延伸并***述第二线圈的第二阶梯孔、自所述第二阶梯孔向靠近所述第二盖板方向凹陷形成且与所述支架相固定的固定槽。More preferably, the mass block further includes a first surface close to one end of the second cover plate, and a second surface opposite to the first surface, and the second accommodation space includes a direction from the first surface toward the first cover plate. A first stepped hole extending from the second surface and accommodating the first coil, a second stepped hole extending from the second surface toward the second cover plate and accommodating the second coil, and extending from the second stepped hole toward the second cover plate. A fixing groove formed concavely in the direction close to the second cover plate and fixed with the bracket.
更优地，所述支架包括固定所述第一磁钢和所述第二磁钢的支撑部及自支撑部向外延伸形成且与所述固定槽固定的延伸部；所述振子还包括固定于所述质量块与所述弹簧支架之间的阻尼件。More preferably, the bracket includes a support portion for fixing the first magnetic steel and the second magnetic steel, and an extension portion extending outward from the support portion and fixed with the fixing groove; the vibrator further includes a fixing portion. a damping element between the mass block and the spring bracket.
本实用新型的有益效果在于：本实用新型通过设置第一线圈提供第一驱动力以驱动振子沿第一方向振动，通过设置第二线圈提供第二驱动力以驱动振子沿与第一方向垂直的第二方向振动，通过在质量块上设置分别位于所述第一磁钢相对第二方向两侧的第二侧壁，并设置一端与所述第二侧壁固定且另一端与外壳固定的弹簧支架，且通过调整第一驱动力与第二驱动力的大小，使振子在弹簧支架支撑下于第一方向与第二方向所在的平面内沿斜向振动。The beneficial effect of the present utility model is that: the utility model provides a first driving force to drive the vibrator to vibrate in the first direction by arranging the first coil, and provides a second driving force to drive the vibrator to vibrate along the first direction by arranging the second coil. Vibration in the second direction, by arranging second side walls on the mass block respectively located on both sides of the first magnetic steel opposite to the second direction, and setting a spring whose one end is fixed to the second side wall and the other end is fixed to the shell and by adjusting the magnitude of the first driving force and the second driving force, the vibrator is supported by the spring bracket to vibrate in an oblique direction in the plane where the first direction and the second direction are located.
【附图说明】【Description of drawings】
图1为本实用新型马达结构示意图；FIG. 1 is a schematic diagram of the motor structure of the present invention;
图2为本实用新型马达结构分解示意图；FIG. 2 is a schematic exploded view of the motor structure of the present invention;
图3为图1中A-A处剖面示意图；Fig. 3 is a schematic cross-sectional view at A-A in Fig. 1;
图4为图1中B-B处剖面示意图；Fig. 4 is a schematic sectional view at B-B in Fig. 1;
图5为本实用新型的马达隐藏第二盖板的结构示意图；FIG. 5 is a schematic structural diagram of the motor concealing second cover of the present invention;
图6为本实用新型的马达隐藏第一盖板的结构示意图；FIG. 6 is a schematic structural diagram of a motor concealing a first cover of the present invention;
图7为本实用新型的马达隐藏第二盖板的俯视图；FIG. 7 is a top view of the motor hidden second cover of the present invention;
图8为本实用新型的定子结合磁钢与支架的结构示意图；8 is a schematic structural diagram of the stator combined with the magnetic steel and the bracket of the present invention;
图9为本实用新型的质量块结构示意图；Fig. 9 is the structural schematic diagram of the mass block of the present invention;
图10为本实用新型的振子沿45°方向振动示意图；Fig. 10 is the vibrator vibrating schematic diagram of the utility model along 45 ° direction;
图11为本实用新型的磁钢充磁示意图。FIG. 11 is a schematic diagram of the magnetization of the magnetic steel of the present invention.
【具体实施方式】【detailed description】
下面结合附图和实施方式对本实用新型作进一步说明。The present utility model will be further described below with reference to the accompanying drawings and embodiments.
本实用新型提供一种线性马达100，参见图1～图11，所述马达100包括第一盖板11、外壳10、振子20、定子30、导电端子40及弹簧支架50。The present invention provides a linear motor 100 , referring to FIGS. 1 to 11 , the motor 100 includes a first cover 11 , a housing 10 , a vibrator 20 , a stator 30 , a conductive terminal 40 and a spring support 50 .
更优地，所述外壳10固定于所述第一盖板11，且所述外壳10与所述第一盖板11形成第一收容空间14，振子20收容于所述第一收容空间14，定子30驱动所述振子20振动，弹簧支架50固定于所述外壳10，且弹簧支架50对所述振子20起到弹性支撑的作用。More preferably, the casing 10 is fixed to the first cover plate 11 , and the casing 10 and the first cover plate 11 form a first accommodation space 14 , and the vibrator 20 is accommodated in the first accommodation space 14 . The stator 30 drives the vibrator 20 to vibrate, the spring bracket 50 is fixed to the housing 10 , and the spring bracket 50 plays an elastic supporting role for the vibrator 20 .
更优地，参见图2～图7，所述外壳10包括第二盖板12及侧壁13，所述第一盖板11与第二盖板12相对设置，侧壁13支撑所述第二盖板12与所述第一盖板11的侧壁13，且所述侧壁13与所述第一盖板11和第二盖板12形成第一收容空间14。本实施例中，所述侧壁13包括第一侧壁131和第二侧壁132，所述第一侧壁131与所述第二侧壁132均为L字形结构，且第一侧壁131和第二侧壁132相连。所述定子30设置于所述第二盖板12与所述第一盖板11之间。More preferably, referring to FIGS. 2 to 7 , the housing 10 includes a second cover plate 12 and a side wall 13 , the first cover plate 11 and the second cover plate 12 are disposed opposite to each other, and the side wall 13 supports the second cover plate 13 . The cover plate 12 and the side wall 13 of the first cover plate 11 , and the side wall 13 , the first cover plate 11 and the second cover plate 12 form a first receiving space 14 . In this embodiment, the side wall 13 includes a first side wall 131 and a second side wall 132 , the first side wall 131 and the second side wall 132 are both L-shaped structures, and the first side wall 131 connected to the second side wall 132 . The stator 30 is disposed between the second cover plate 12 and the first cover plate 11 .
更优地，所述振子20包括质量块21、阻尼件22、支架23、第一磁钢24及第二磁钢25；所述质量块21贯穿形成第二收容空间211，所述质量块21安装于第二盖板12与第一盖板11之间，所述阻尼件22固定于所述质量块21与所述弹簧支架50之间。所述支架23固定于所述第二收容空间211并分别与所述第一磁钢24和第二磁钢25固定，所述第一磁钢24固定于所述支架23背离第一盖板11的一侧，所述第二磁钢25固定于所述支架23靠近所述第一盖板11的一侧，所述支架23由高导磁材料制成，本实施例中，所述支架的磁导率大于所述质量块，以优化定子30的磁场性能，其也可以是非导磁材料制成，仅起到支撑固定第一磁钢24和第二磁钢25的作用。More preferably, the vibrator 20 includes a mass block 21 , a damping member 22 , a bracket 23 , a first magnetic steel 24 and a second magnetic steel 25 ; Installed between the second cover plate 12 and the first cover plate 11 , the damping member 22 is fixed between the mass block 21 and the spring bracket 50 . The bracket 23 is fixed to the second receiving space 211 and is respectively fixed to the first magnetic steel 24 and the second magnetic steel 25 , and the first magnetic steel 24 is fixed to the bracket 23 away from the first cover plate 11 . The second magnetic steel 25 is fixed on the side of the bracket 23 close to the first cover plate 11, and the bracket 23 is made of a high magnetic permeability material. In this embodiment, the bracket The magnetic permeability is greater than the mass block to optimize the magnetic field performance of the stator 30 , which can also be made of a non-magnetic conductive material, and only serves to support and fix the first magnetic steel 24 and the second magnetic steel 25 .
更优地，参见1～图9，所述质量块21包括第二收容空间211、第一 表面212、第二表面213、第一侧壁214和第二侧壁215，所述第一侧壁214相对设置，所述第二侧壁215位于所述第一侧壁214之间，且所述第二侧壁215与所述第一侧壁214首尾相接围成所述第二收容空间211。所述第一侧壁214分别位于所述第一磁钢24相对第一方向X的两侧，所述第二侧壁215位于所述第一磁钢24相对第二方向Y的两侧，且所述第一侧壁214和第二侧壁215位于第一表面212与第二表面213之间。所述第一表面212为质量块21靠近所述第二盖板12的一端，所述第二表面213为质量块21靠近第一盖板11的一端，所述质量块21贯穿形成第二收容空间211。所述第二收容空间211包括第一阶梯孔2111、第二阶梯孔2112及固定槽2113，所述第一阶梯孔2111自所述第一表面212向靠近第一盖板11方向延伸，且所述第一阶梯孔2111***述第一线圈31，所述第二阶梯孔2112自所述第二表面213向靠近第二盖板12方向延伸，且所述第二阶梯孔2112***述第二线圈32，所述固定槽2113自所述第二阶梯孔2112向靠近所述第二盖板12方向凹陷形成，且所述固定槽2113与所述支架23相固定。More preferably, referring to FIGS. 1 to 9 , the mass block 21 includes a second receiving space 211 , a first surface 212 , a second surface 213 , a first side wall 214 and a second side wall 215 , the first side wall 215 . 214 are disposed opposite to each other, the second side wall 215 is located between the first side walls 214 , and the second side wall 215 and the first side wall 214 are end-to-end to enclose the second receiving space 211 . The first side walls 214 are respectively located on both sides of the first magnetic steel 24 relative to the first direction X, the second side walls 215 are located on both sides of the first magnetic steel 24 relative to the second direction Y, and The first sidewall 214 and the second sidewall 215 are located between the first surface 212 and the second surface 213 . The first surface 212 is the end of the mass block 21 close to the second cover plate 12 , the second surface 213 is the end of the mass block 21 close to the first cover plate 11 , and the mass block 21 penetrates through to form a second housing Space 211. The second accommodating space 211 includes a first stepped hole 2111 , a second stepped hole 2112 and a fixing groove 2113 . The first stepped hole 2111 extends from the first surface 212 toward the first cover plate 11 , and the The first stepped hole 2111 accommodates the first coil 31 , the second stepped hole 2112 extends from the second surface 213 toward the second cover 12 , and the second stepped hole 2112 accommodates the first coil 31 . For the second coil 32 , the fixing slot 2113 is recessed from the second stepped hole 2112 toward the second cover plate 12 , and the fixing slot 2113 is fixed to the bracket 23 .
更优地，参见图2～图8，所述定子30包括第一线圈31、第二线圈32、第一导磁片33、第二导磁片34、第一铁芯35及第二铁芯36。本实施例中，所述第一线圈31与所述第二线圈32均为矩形线圈，所述第一线圈31的长轴L1垂直于所述第二线圈32的长轴L2，且，所述第一线圈31的长轴L1垂直于第一方向X，所述第二线圈32的长轴垂直于第二方向Y。所述第一线圈31与外壳10固定，且第一线圈31提供第一驱动力F1以驱动振子20沿第一方向X振动。所述第二线圈32与所述第一盖板11固定，且第二线圈32提供第二驱动力F2以驱动振子20沿与所述第一方向X垂直的第二方向Y振动，所述振子20的振动方向为第一驱动力F1与第二驱动力F2的合力F的方向，通过调整第一驱动力F1与第二驱动力F2的大小，使振子在第一方向X与第二方向Y所在的平面内沿斜向振动。More preferably, referring to FIGS. 2 to 8 , the stator 30 includes a first coil 31 , a second coil 32 , a first magnetic conductive sheet 33 , a second magnetic conductive sheet 34 , a first iron core 35 and a second iron core 36. In this embodiment, the first coil 31 and the second coil 32 are both rectangular coils, the long axis L1 of the first coil 31 is perpendicular to the long axis L2 of the second coil 32, and the The long axis L1 of the first coil 31 is perpendicular to the first direction X, and the long axis of the second coil 32 is perpendicular to the second direction Y. The first coil 31 is fixed to the housing 10 , and the first coil 31 provides a first driving force F1 to drive the vibrator 20 to vibrate along the first direction X. The second coil 32 is fixed to the first cover plate 11 , and the second coil 32 provides a second driving force F2 to drive the vibrator 20 to vibrate in a second direction Y perpendicular to the first direction X, the vibrator The vibration direction of 20 is the direction of the resultant force F of the first driving force F1 and the second driving force F2. By adjusting the magnitude of the first driving force F1 and the second driving force F2, the vibrator can be moved in the first direction X and the second direction Y. It vibrates in an oblique direction in the plane where it is located.
具体地，第一铁芯35装设于第一线圈31内，第二铁芯36装设于第二线圈32内，第一导磁片33固定于所述第二盖板12靠近所述定子30一侧， 且第一导磁片33与所述第一铁芯35和第一线圈31相固定，第二导磁片34固定于所述第一盖板11靠近所述定子30一侧，且第二导磁片34与所述第二铁芯36和第二线圈32相固定，所述支架23设置于第一线圈31与第二线圈32之间。Specifically, the first iron core 35 is installed in the first coil 31 , the second iron core 36 is installed in the second coil 32 , and the first magnetic conductive sheet 33 is fixed on the second cover plate 12 close to the stator 30 side, and the first magnetic conductive sheet 33 is fixed with the first iron core 35 and the first coil 31, and the second magnetic conductive sheet 34 is fixed on the side of the first cover plate 11 close to the stator 30, The second magnetic conductive sheet 34 is fixed to the second iron core 36 and the second coil 32 , and the bracket 23 is disposed between the first coil 31 and the second coil 32 .
更优地，所述支架23包括支撑部231和延伸部232，支撑部231固定所述第一磁钢24和所述第二磁钢25，延伸部232自支撑部231向外延伸形成，且延伸部232与所述固定槽2113相固定。所述第一磁钢24固定于所述支架23背离所述第一盖板11的一侧，且所述第一磁钢24与所述第一线圈31间隔，第二磁钢25固定于所述支架23靠近所述第一盖板11的一侧，且所述第二磁钢25与所述第二线圈间隔设置，所述第一磁钢24固定于所述第二收容空间211，且所述第一磁钢24沿第三方向Z与所述第一线圈31正对且间隔设置，所述第三方向Z垂直所述第一方向Y和所述第二方向X，且所述第三方向Z为磁钢的厚度方向。所述第二磁钢25固定于所述第二收容空间211，且所述第二磁钢25沿第三方向Z与所述第二线圈32正对且间隔设置。More preferably, the bracket 23 includes a support portion 231 and an extension portion 232 , the support portion 231 fixes the first magnetic steel 24 and the second magnetic steel 25 , the extension portion 232 extends outward from the support portion 231 , and The extension portion 232 is fixed with the fixing groove 2113 . The first magnetic steel 24 is fixed on the side of the bracket 23 away from the first cover plate 11 , and the first magnetic steel 24 is spaced from the first coil 31 , and the second magnetic steel 25 is fixed on the side of the bracket 23 . The bracket 23 is close to one side of the first cover plate 11 , the second magnetic steel 25 is spaced apart from the second coil, the first magnetic steel 24 is fixed in the second receiving space 211 , and The first magnetic steel 24 is directly opposite and spaced from the first coil 31 along the third direction Z, the third direction Z is perpendicular to the first direction Y and the second direction X, and the third direction Z is perpendicular to the first direction Y and the second direction X. The three directions Z are the thickness directions of the magnetic steel. The second magnetic steel 25 is fixed in the second receiving space 211 , and the second magnetic steel 25 is arranged along the third direction Z facing the second coil 32 at intervals.
更优地，所述第一磁钢24和所述第二磁钢25分别由至少两块沿所述第三方向Z充磁且极性相反的磁钢拼接而成，拼接的相邻所述磁钢极性相反且形成拼接线L3，所述第一磁钢24的拼接线L3不平行于所述第二磁钢25的拼接线L3。优选地，所述第一磁钢24与所述第二磁钢25的拼接线L3互相垂直。More preferably, the first magnetic steel 24 and the second magnetic steel 25 are respectively formed by splicing at least two magnetic steels that are magnetized along the third direction Z and have opposite polarities. The magnetic steels have opposite polarities and form a splicing line L3 , and the splicing line L3 of the first magnetic steel 24 is not parallel to the splicing line L3 of the second magnetic steel 25 . Preferably, the splicing line L3 of the first magnetic steel 24 and the second magnetic steel 25 is perpendicular to each other.
更优地，所述第一磁钢24的拼接线L3为所述第一磁钢24的对称线，所述第二磁钢25的拼接线L3为所述第二磁钢25的对称线。所述第一驱动力F1与所述第二驱动力F2共同作用于所述振子20使得振子20发生斜向运动，当第一驱动力F1等于第二驱动力F2时，所述振子沿与第一方向X成45°夹角的方向振动。More preferably, the splicing line L3 of the first magnetic steel 24 is the line of symmetry of the first magnetic steel 24 , and the splicing line L3 of the second magnetic steel 25 is the line of symmetry of the second magnetic steel 25 . The first driving force F1 and the second driving force F2 act together on the vibrator 20 to cause the vibrator 20 to move obliquely. When the first driving force F1 is equal to the second driving force F2, the vibrator moves along the same direction as the second driving force F2. One direction X vibrates at an included angle of 45°.
更优地，所述导电端子40包括第一导电端子41和第二导电端子42，所述第一导电端子41固定于所述第二盖板12靠近所述定子30的一端，所述第二导电端子42固定于所述第一盖板11靠近所述定子30的一端，所述 第一导电端子41延伸出所述外壳10并与延伸出所述外壳10的第二导电端子42电连接。More preferably, the conductive terminal 40 includes a first conductive terminal 41 and a second conductive terminal 42 , the first conductive terminal 41 is fixed to an end of the second cover plate 12 close to the stator 30 , the second conductive terminal 41 is The conductive terminal 42 is fixed on one end of the first cover 11 close to the stator 30 . The first conductive terminal 41 extends out of the casing 10 and is electrically connected to the second conductive terminal 42 extending out of the casing 10 .
更优地，参见图2～图11，第一导电端子41与所述第一线圈31电连接，第二导电端子42与所述第二线圈32电连接，所述第一导电端子41控制所述第一驱动力F1的大小以驱动所述振子20以第一振动模态振动，所述第二导电端子42控制所述第二驱动力F2的大小以驱动所述振子20以第二振动模态振动，More preferably, referring to FIGS. 2 to 11 , the first conductive terminal 41 is electrically connected to the first coil 31 , the second conductive terminal 42 is electrically connected to the second coil 32 , and the first conductive terminal 41 controls the The magnitude of the first driving force F1 is used to drive the vibrator 20 to vibrate in the first vibration mode, and the second conductive terminal 42 controls the magnitude of the second driving force F2 to drive the vibrator 20 to vibrate in the second vibration mode. vibration,
更优地，定义所述第一振动模态的模态频率为a，所述第二振动模态的模态频率为b，满足关系式：More preferably, the modal frequency of the first vibration mode is defined as a, and the modal frequency of the second vibration mode is defined as b, which satisfies the relationship:
|a-b|≤10Hz，|a-b|≤10Hz,
其中，Hz为单位赫兹。优选地，满足关系式：|a-b|＝0Hz，使得二者的模态频率相等。where Hz is the unit of Hertz. Preferably, the relational expression: |a-b|=0 Hz is satisfied, so that the modal frequencies of the two are equal.
具体地，所述弹簧支架50包括第一弹力臂51、第二弹力臂52、第一焊片53及第二焊片54，所述第一弹力臂51与所述第一侧壁214相对，且所述第一弹力臂51与所述第一侧壁214间隔设置。所述第二弹力臂52自所述第一弹力臂51的一端弯折延伸，且所述第二弹力臂52与相邻所述第二侧壁215相对设置。所述第一弹力臂51远离所述第二弹力臂52的一端与所述外壳10固定，所述第二弹力臂52远离所述第一弹力臂51的一端与所述第二侧壁215固定。所述第一焊片53固定于所述第一弹力臂51远离所述第二弹力臂52的一端，且所述第一焊片53位于所述第一弹力臂51背离所述外壳10的一端。所述第二焊片54固定于所述第二弹力臂52远离所述第一弹力臂51的一端，且所述第二焊片54位于所述第二弹力臂52背离所述第二侧壁215的一端。Specifically, the spring bracket 50 includes a first elastic arm 51 , a second elastic arm 52 , a first welding piece 53 and a second welding piece 54 , and the first elastic arm 51 is opposite to the first side wall 214 . And the first elastic arm 51 is spaced apart from the first side wall 214 . The second elastic arm 52 is bent and extended from one end of the first elastic arm 51 , and the second elastic arm 52 is disposed opposite to the adjacent second side wall 215 . One end of the first elastic arm 51 away from the second elastic arm 52 is fixed to the housing 10 , and one end of the second elastic arm 52 away from the first elastic arm 51 is fixed to the second side wall 215 . The first welding piece 53 is fixed to the end of the first elastic arm 51 away from the second elastic arm 52 , and the first welding piece 53 is located at the end of the first elastic arm 51 away from the casing 10 . The second welding piece 54 is fixed to the end of the second elastic arm 52 away from the first elastic arm 51 , and the second welding piece 54 is located at the second elastic arm 52 away from the second side wall 215 at one end.
借此，本实用新型通过设置第一线圈31提供第一驱动力F1以驱动振子20沿第一方向X振动，通过设置第二线圈32提供第二驱动力F2以驱动振子20沿与第一方向X垂直的第二方向Y振动，通过在质量块21上设置分别位于所述第一磁钢24相对第二方向Y两侧的第二侧壁215，并设置一 端与所述第二侧壁215固定且另一端与外壳10固定的弹簧支架50，且通过调整第一驱动力F1与第二驱动力F2的大小，使振子20在弹簧支架50支撑下于第一方向X与第二方向Y所在的平面内沿斜向振动。Therefore, the present invention provides the first driving force F1 by setting the first coil 31 to drive the vibrator 20 to vibrate in the first direction X, and provides the second driving force F2 by setting the second coil 32 to drive the vibrator 20 along the first direction. Vibration in the second direction Y perpendicular to X, by disposing second side walls 215 on the mass block 21 on both sides of the first magnetic steel 24 opposite to the second direction Y, and setting one end of the second side wall 215 with the second side wall 215 The spring bracket 50 is fixed and the other end is fixed to the casing 10, and by adjusting the magnitude of the first driving force F1 and the second driving force F2, the vibrator 20 is supported by the spring bracket 50 in the first direction X and the second direction Y. vibrates in the oblique direction in the plane.
以上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。The above are only the embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present utility model, but these belong to the present utility model. A new range of protection.

Claims (10)

  1. 一种线性马达，其包括第一盖板、固定于所述第一盖板并与所述第一盖板形成第一收容空间的外壳、收容于所述第一收容空间的振子、驱动所述振子振动的定子及固定于所述外壳且弹性支撑所述振子的弹簧支架，其特征在于，所述定子至少包括与外壳固定且提供第一驱动力以驱动振子沿第一方向振动的第一线圈及与所述第一盖板固定且提供第二驱动力以驱动振子沿与所述第一方向垂直的第二方向振动的第二线圈，所述振子包括贯穿形成第二收容空间的质量块、固定于所述第二收容空间且沿垂直所述第一方向和所述第二方向的第三方向与所述第一线圈正对且间隔的第一磁钢及固定于所述第二收容空间且沿第三方向与所述第二线圈正对且间隔的第二磁钢，所述第一磁钢和所述第二磁钢分别由至少两块沿第三方向充磁的磁钢拼接而成，拼接的相邻所述磁钢极性相反且形成拼接线，所述第三方向为磁钢的厚度方向，所述第一磁钢的拼接线不平行于所述第二磁钢的拼接线，所述质量块包括相对设置的第一侧壁以及位于所述第一侧壁之间且与所述第一侧壁首尾相接围成所述第二收容空间的第二侧壁，所述第一侧壁分别位于所述第一磁钢相对第一方向的两侧，所述第二侧壁位于所述第一磁钢相对第二方向的两侧；所述弹簧支架包括与所述第一侧壁相对且间隔设置的第一弹力臂、以及自所述第一弹力臂的一端弯折延伸并与相邻所述第二侧壁相对的第二弹力臂，所述第一弹力臂远离所述第二弹力臂的一端与所述外壳固定，所述第二弹力臂远离所述第一弹力臂的一端与所述第二侧壁固定；所述第一驱动力与所述第二驱动力共同驱动所述振子。A linear motor includes a first cover plate, a casing fixed on the first cover plate and forming a first receiving space with the first cover plate, a vibrator held in the first receiving space, and driving the A vibrator vibrating stator and a spring bracket fixed to the casing and elastically supporting the vibrator, characterized in that the stator at least includes a first coil fixed to the casing and providing a first driving force to drive the vibrator to vibrate in a first direction and a second coil that is fixed with the first cover plate and provides a second driving force to drive the vibrator to vibrate in a second direction perpendicular to the first direction, the vibrator includes a mass block that penetrates through and forms a second accommodation space, a first magnetic steel fixed in the second receiving space and facing and spaced apart from the first coil along a third direction perpendicular to the first direction and the second direction and fixed in the second receiving space And the second magnetic steel facing and spaced apart from the second coil in the third direction, the first magnetic steel and the second magnetic steel are respectively spliced by at least two magnetic steels magnetized along the third direction. The spliced adjacent magnetic steels have opposite polarities and form a splicing line, the third direction is the thickness direction of the magnetic steel, and the splicing line of the first magnetic steel is not parallel to the splicing of the second magnetic steel line, the mass block includes a first side wall oppositely arranged and a second side wall located between the first side walls and connecting end to end with the first side wall to enclose the second receiving space, so The first sidewalls are respectively located on both sides of the first magnetic steel relative to the first direction, and the second sidewalls are located on both sides of the first magnetic steel relative to the second direction; the spring support includes and the A first elastic arm opposite to the first side wall and arranged at intervals, and a second elastic arm bent and extended from one end of the first elastic arm and opposite to the adjacent second side wall, the first elastic arm One end of the second elastic arm away from the second elastic arm is fixed with the casing, and one end of the second elastic arm away from the first elastic arm is fixed with the second side wall; the first driving force is connected to the second side wall. The driving force jointly drives the vibrator.
  2. 根据权利要求1所述的线性马达，其特征在于：所述弹簧支架还包括固定于所述第一弹力臂远离所述第二弹力臂且背离所述外壳一端的第一焊片及固定于所述第二弹力臂远离所述第一弹力臂且背离所述第二侧壁一端的第二焊片。The linear motor as claimed in claim 1, wherein the spring bracket further comprises a first soldering piece fixed to one end of the first elastic arm away from the second elastic arm and away from the casing and fixed to the The second elastic arm is away from the first elastic arm and away from the second welding piece at one end of the second side wall.
  3. 根据权利要求1所述的线性马达，其特征在于：所述线性马达还包括导电端子，所述导电端子包括与所述第一线圈电连接的第一导电端子及 与所述第二线圈电连接的第二导电端子。The linear motor of claim 1, wherein the linear motor further comprises a conductive terminal, and the conductive terminal comprises a first conductive terminal electrically connected to the first coil and electrically connected to the second coil the second conductive terminal.
  4. 根据权利要求3所述的线性马达，其特征在于，所述第一线圈与所述第二线圈均为矩形线圈，所述第一线圈的长轴垂直于所述第二线圈的长轴。The linear motor according to claim 3, wherein the first coil and the second coil are both rectangular coils, and the long axis of the first coil is perpendicular to the long axis of the second coil.
  5. 根据权利要求1所述的线性马达，其特征在于：所述第一磁钢的拼接线为所述第一磁钢的对称线，所述第二磁钢的拼接线为所述第二磁钢的对称线。The linear motor according to claim 1, wherein the splicing line of the first magnetic steel is the symmetry line of the first magnetic steel, and the splicing line of the second magnetic steel is the second magnetic steel line of symmetry.
  6. 根据权利要求1所述的线性马达，其特征在于：所述振子还包括固定于所述第二收容空间并分别与所述第一磁钢和第二磁钢固定的支架，所述第一磁钢固定于所述支架背离所述第一盖板的一侧，所述第二磁钢固定于所述支架靠近所述第一盖板的一侧，所述支架的磁导率大于所述质量块。The linear motor according to claim 1, wherein the vibrator further comprises a bracket fixed to the second receiving space and respectively fixed to the first magnetic steel and the second magnetic steel, the first magnetic steel The steel is fixed on the side of the bracket away from the first cover plate, the second magnetic steel is fixed on the side of the bracket close to the first cover plate, and the magnetic permeability of the bracket is greater than the mass piece.
  7. 根据权利要求3所述的线性马达，其特征在于：所述外壳包括与所述第一盖板正对设置的第二盖板、支撑所述第二盖板与所述第一盖板并与所述第二盖板和所述第一盖板形成第一收容空间的侧壁，所述定子设置于所述第二盖板与所述第一盖板之间，所述第一导电端子固定于所述第二盖板靠近所述定子的一端，所述第二导电端子固定于所述第一盖板靠近所述定子的一端，所述第一导电端子延伸出所述外壳并与延伸出所述外壳的第二导电端子相连。The linear motor according to claim 3, wherein the housing comprises a second cover plate disposed opposite to the first cover plate, supports the second cover plate and the first cover plate and is connected with the first cover plate The second cover plate and the first cover plate form a side wall of the first accommodation space, the stator is arranged between the second cover plate and the first cover plate, and the first conductive terminal is fixed At one end of the second cover plate close to the stator, the second conductive terminal is fixed on the end of the first cover plate close to the stator, and the first conductive terminal extends out of the casing and extends out of the outer casing. The second conductive terminals of the housing are connected.
  8. 根据权利要求7所述的线性马达，其特征在于：所述定子还包括装设于第一线圈内的第一铁芯、固定于所述第二盖板靠近所述定子一侧并与所述第一铁芯和第一线圈相固定的第一导磁片、装设于第二线圈内的第二铁芯及固定于所述第一盖板靠近所述定子一侧并与所述第二铁芯和第二线圈相固定的第二导磁片。The linear motor according to claim 7, wherein the stator further comprises a first iron core installed in the first coil, fixed on the side of the second cover plate close to the stator and connected with the The first magnetic conductive sheet fixed with the first iron core and the first coil, the second iron core installed in the second coil, and the second iron core fixed on the side of the first cover plate close to the stator and connected with the second The iron core and the second coil are fixed with the second magnetic conductive sheet.
  9. 根据权利要求8所述的线性马达，其特征在于：所述质量块还包括靠近第二盖板一端的第一表面、与第一表面相对的第二表面，所述第二收容空间包括自所述第一表面向靠近第一盖板方向延伸并***述第一线圈的第一阶梯孔、自所述第二表面向靠近第二盖板方向延伸并***述第二线圈的第二阶梯孔、自所述第二阶梯孔向靠近所述第二盖板方向凹陷形成 且与所述支架相固定的固定槽。The linear motor according to claim 8, wherein the mass block further comprises a first surface close to one end of the second cover plate, and a second surface opposite to the first surface, and the second receiving space comprises a The first surface extends toward the first cover plate and accommodates the first step hole of the first coil, and the second step extends from the second surface toward the second cover plate and accommodates the second coil. A hole, a fixing groove recessed from the second stepped hole toward the direction close to the second cover plate and fixed with the bracket.
  10. 根据权利要求9所述的线性马达，其特征在于：所述支架包括固定所述第一磁钢和所述第二磁钢的支撑部及自支撑部向外延伸形成且与所述固定槽固定的延伸部；所述振子还包括固定于所述质量块与所述弹簧支架之间的阻尼件。The linear motor of claim 9, wherein the bracket comprises a support portion for fixing the first magnet steel and the second magnet steel, and a support portion extending outward from the support portion and being fixed with the fixing groove The vibrator also includes a damping member fixed between the mass block and the spring bracket.
PCT/CN2020/101255 2020-07-10 2020-07-10 Linear motor WO2022006837A1 (en)

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