WO2022006983A1 - 一种双向驱动磁路 - Google Patents

一种双向驱动磁路 Download PDF

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Publication number
WO2022006983A1
WO2022006983A1 PCT/CN2020/102724 CN2020102724W WO2022006983A1 WO 2022006983 A1 WO2022006983 A1 WO 2022006983A1 CN 2020102724 W CN2020102724 W CN 2020102724W WO 2022006983 A1 WO2022006983 A1 WO 2022006983A1
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WIPO (PCT)
Prior art keywords
magnetic steel
magnetic
voice coil
steel
interface
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Ceased
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PCT/CN2020/102724
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English (en)
French (fr)
Inventor
马杰
崔志勇
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AAC Technologies Holdings Shenzhen Co Ltd
AAC Technologies Holdings Nanjing Co Ltd
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AAC Acoustic Technologies Shenzhen Co Ltd
AAC Technologies Holdings Nanjing Co Ltd
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Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Technologies Holdings Nanjing Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2022006983A1 publication Critical patent/WO2022006983A1/zh
Anticipated expiration legal-status Critical
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    • 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
    • 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
    • H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
    • 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

Definitions

  • the utility model relates to the field of linear motor installation structures, in particular to a bidirectional driving magnetic circuit.
  • Linear vibration motor is a device that uses the principle of electromagnetic force to convert electrical energy into mechanical energy.
  • Linear vibration motor is usually installed in portable mobile devices to generate vibration feedback, such as the vibration of mobile phones or the vibration feedback of game consoles.
  • the traditional bidirectional driving magnetic circuit of the linear vibration motor is an oblique magnetization structure (there is only one magnetic steel and the magnetization directions of the two permanent magnets of the magnetic steel are arranged along the diagonal direction).
  • This structure is arranged in two directions respectively.
  • the magnetic circuit is used for driving, or the purpose of bidirectional driving is achieved by decomposing the driving force.
  • this structure has the following drawbacks: when the magnetic circuits are arranged in two directions, it is equivalent to driving each direction independently, and the utilization rate of the magnetic circuit is not high; and the method of decomposing the driving force will make the driving forces in the two directions mutually Coupling affects the role of their respective magnetic circuits.
  • the purpose of the utility model is to provide a bidirectional driving magnetic circuit.
  • a bidirectional driving magnetic circuit comprising a bracket, a first voice coil, a second voice coil, and a first magnetic steel, a second magnetic steel, a third magnetic steel, and a fourth magnetic steel fixed on the bracket, the first magnetic steel
  • the magnetic steel, the second magnetic steel, the third magnetic steel and the fourth magnetic steel are all magnetized along the thickness direction
  • the bracket includes an upper surface and a lower surface arranged oppositely
  • the first magnetic steel and the fourth magnetic steel are magnetized along the thickness direction.
  • the second magnetic steel is joined to form a first magnetization interface and is disposed on the upper surface of the bracket.
  • the first and second magnetic steels have opposite polarities
  • the third and fourth magnetic steels have opposite polarities.
  • the second magnetization interface is formed by joining together and is arranged on the lower surface of the bracket, the third magnetic steel and the fourth magnetic steel have opposite polarities, and the first voice coil is connected to the first magnetic steel and the fourth magnetic steel.
  • Two magnetic steels are relatively spaced apart to generate a driving force in the first direction
  • the second voice coil is relatively spaced from the third and fourth magnetic steels to generate a driving force in the second direction
  • the first A direction and the second direction form an included angle with each other and are both perpendicular to the thickness direction
  • the first magnetization interface and the second magnetization interface form an included angle with each other.
  • first magnetization interface and the second magnetization interface are perpendicular to each other.
  • the first voice coil is in the shape of a racetrack, and has a first axis along a direction parallel to the long axis, and the first axis is parallel to the first magnetization interface.
  • the second voice coil is in the shape of a racetrack, and has a second axis along a direction parallel to the long axis, and the second axis is parallel to the second magnetization interface.
  • first direction is perpendicular to the second direction.
  • the bracket is made of magnetic conductive material.
  • an iron core is provided in the center of the first voice coil and the second voice coil, and a magnetic conductive sheet is provided on the sides of the first voice coil and the second voice coil, and the magnetic conductive sheet is provided on the first voice coil.
  • a voice coil and a second voice coil are on the side away from the adjacent magnets.
  • a bidirectional driving magnetic circuit includes a bracket, a first voice coil, a second voice coil, and a first magnetic steel, a second magnetic steel, a third magnetic steel, and a fourth magnetic steel fixed on the bracket.
  • the bracket includes an upper surface and a lower surface arranged oppositely, and the first magnetic steel and the second magnetic steel are joined together
  • a first magnetization interface is formed and arranged on the upper surface of the bracket, the first magnetic steel and the second magnetic steel have opposite polarities, and the third magnetic steel and the fourth magnetic steel are joined to form a second magnetization interface and arranged on the lower part of the bracket
  • the polarities of the third magnet and the fourth magnet are opposite, the first voice coil and the first magnet and the second magnet are relatively spaced apart to generate a driving force in the first direction, the second voice coil
  • the steel and the fourth magnet steel are relatively spaced to generate a driving force along the second direction, the first direction and the second direction form an angle with each other and are both perpendicular to the thickness direction, and the first magnetization interface and the second magnetization interface form each other angle.
  • the present invention can relatively decouple the driving forces in the two directions of the magnetic circuit and reduce the mutual influence of the two magnetic circuits; at the same time, the driving magnetic circuits of the two directions are shared, which is more efficient than the separately driven magnetic circuit. significantly enhanced.
  • FIG. 1 is a schematic structural diagram of a preferred embodiment of a bidirectional drive magnetic circuit of the present invention
  • FIG. 2 is a perspective exploded schematic view of a preferred embodiment of a two-way drive magnetic circuit intermediate magnetic steel assembly of the present invention
  • FIG. 3 is a schematic diagram of the preferred embodiments of the first magnetic steel and the second magnetic steel of the present invention.
  • FIG. 4 is a schematic diagram of the configuration of the preferred embodiment of the third magnetic steel and the fourth magnetic steel of the present invention.
  • FIG. 5 is a perspective exploded schematic diagram of a preferred embodiment of the first voice coil of the present invention.
  • 100 a two-way drive magnetic circuit; 11, the first magnet; 12, the second magnet; 13, the third magnet; 14, the fourth magnet; 15, the bracket; 20, the first voice coil ; 30, the second voice coil; 21, the iron core; 22, the magnetic conductive sheet.
  • a bidirectional driving magnetic circuit 100 of the present invention includes a bracket 15 in the middle, and the bracket 15 is in the shape of a plate.
  • the upward side of the bracket 15 is an upper plane, and the downward side of the bracket 15 is a lower plane;
  • the two-way drive magnetic circuit also includes a first magnetic steel 11, a second magnetic steel 12, a third magnetic steel 13 and a fourth magnetic steel.
  • the magnetic steel 14, the first magnetic steel 11 and the second magnetic steel 12 are fixed on the upper plane of the bracket 15, and the third magnetic steel 13 and the fourth magnetic steel 14 are fixed on the lower plane, that is, the first magnetic steel 11 and the second magnetic steel are formed.
  • the magnetic steel 12 at the upper end, the third magnetic steel 13 and the fourth magnetic steel 14 at the lower end sandwich the bracket 15 in the middle.
  • the first magnetic steel 11, the second magnetic steel 12, the third magnetic steel 13 and the fourth magnetic steel 14 can be respectively set according to the needs of their shapes, sizes and other structures.
  • the first magnetic steel 11 and the second magnetic steel 12 are joined together in structure similar to the parts joined by the third magnetic steel 13 and the fourth magnetic steel 14, that is, the joined parts of the first magnetic steel 11 and the second magnetic steel 12 are the same as the first magnetic steel 11 and the second magnetic steel 12.
  • the components connected to the third magnetic steel 13 and the fourth magnetic steel 14 are the same or basically the same in shape, size, thickness, etc., and both are quadrangular prisms in the present invention.
  • the magnetization directions of the first magnetic steel 11 , the second magnetic steel 12 , the third magnetic steel 13 and the fourth magnetic steel 14 are all magnetized along their own thickness directions to ensure that the magnetic induction lines formed by the permanent magnets can be through the voice coils on both sides.
  • the magnetization directions of the first magnetic steel 11 and the second magnetic steel 12 are opposite, and the magnetization directions of the third magnetic steel 13 and the fourth magnetic steel 14 are opposite.
  • the upper end surfaces of the first magnetic steel 11 and the third magnetic steel 13 are N poles
  • the lower end surfaces are S poles
  • the upper end surfaces of the second magnetic steel 12 and the fourth magnetic steel 14 are S poles
  • the lower end face is the N pole
  • the magnetization directions of the first magnet 11 and the third magnet 13 are the same, from bottom to top along their own thickness direction
  • the magnetization of the second magnet 12 and the fourth magnet 14 The directions are the same, from top to bottom along its own thickness direction.
  • the first magnetic steel 11 and the second magnetic steel 12 are combined, and the combined surface thereof is a first magnetization interface, and the first magnetization interface is a flat and smooth vertical plane.
  • the third magnetic steel 13 and the fourth magnetic steel 14 are combined, and the combined surface thereof is the second magnetization interface, and the second magnetization interface is a flat and smooth vertical plane.
  • the first magnetization interface and the second magnetization interface form an included angle with each other.
  • the arrangement directions of the first magnetization interface and the second magnetization interface are perpendicular to each other.
  • two magnetic steels with the same size and shape are used as the first magnetic steel 11 and the second magnetic steel 12, and the first magnetic steel 11 and the second magnetic steel 12 are arranged side by side.
  • two magnetic steels with the same size and shape are used.
  • Steel is used as the third magnetic steel 13 and the fourth magnetic steel 14, and the third magnetic steel 13 and the fourth magnetic steel 14 are arranged side by side. In this way, the first magnetization interface and the second magnetization interface are perpendicular to each other.
  • the material of the bracket 15 in the present invention can be of various types, which are specifically divided into magnetic conductive materials and non-magnetic conductive materials. Both of the above-mentioned two types of materials can achieve the functions of the present invention. 15 When it is made of non-magnetic material, it will affect the realization effect of the driving magnetic circuit. Therefore, the present invention preferably uses magnetic conductive material to make the bracket 15, and a feasible embodiment is: using SPCD to make the bracket 15 of the present invention, wherein SPCD refers to a kind of Japanese steel (JIS standard series). The steel grade indicates cold-rolled carbon steel sheet and strip for stamping, which is equivalent to China 08AL (13237) high-quality carbon structural steel.
  • the second voice coil 30 has the same structure as the first voice coil 20, the first voice coil 20 is arranged above the first magnetic steel 11 and the second magnetic steel 12, and the second voice coil 30 is placed on the third magnetic steel 13 and the fourth magnet 14, there is a space between the first voice coil 20 and the second voice coil 30 and the adjacent magnets, and the first voice coil 20 and the second voice coil 30 do not directly contact the magnets.
  • the structure can provide two driving forces perpendicular to the thickness direction of the magnetic steel when the two voice coils are charged. The directions of the two driving forces form an included angle with each other.
  • both the first voice coil 20 and the second voice coil 30 are in the shape of an elliptical track
  • the first voice coil 20 has a first axis parallel to the long axis direction, that is, the first axis is parallel to the straight line in the elliptical track , and the first axis is parallel to the first magnetization interface.
  • the same second voice coil 30 has a second axis parallel to the long axis direction, that is, the second axis is parallel to the straight line in the elliptical racetrack, and the second axis is parallel to the second magnetization interface.
  • the first axis and the second axis are also perpendicular to each other, that is, it is preferable that the first voice coil 20 and the second voice coil 30 The two are also arranged in a direction perpendicular to each other in space, so that the first voice coil 20 and the second voice coil 30 can respectively provide two mutually perpendicular driving forces.
  • the first voice coil 20 in the present invention is shown in FIG. 5 , wherein the second voice coil 30 and the first voice coil 20 have similar structures and are mirror-symmetrical.
  • the first voice coil 20 and the second voice coil 30 There is an oval hole in the middle, and an iron core 22 with the same shape and size as the oval hole is nested in the oval hole, and a magnetic conductive sheet is also provided on the side of the first voice coil 20 and the second voice coil 30 away from the adjacent magnetic steel. twenty three.
  • the magnetic conductive sheet 23 can play the role of collecting magnetism and protecting the voice coil.
  • the current direction in each voice coil can be independently controlled independently.
  • the magnetic steels on both sides will obtain driving forces in different directions, and the driving forces in the two directions of the magnetic circuit are relatively decoupled, reducing the mutual influence of the two magnetic circuits; at the same time, the driving magnetic circuits in the two directions are shared,
  • This method can drive the vibrator structure to vibrate back and forth in different directions, so as to realize multi-directional vibration of the linear motor and bring rich vibration experience.

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

Abstract

一种双向驱动磁路，包括支架、第一音圈、第二音圈以及第一磁钢、第二磁钢、第三磁钢、第四磁钢，所有磁钢均沿厚度方向充磁，第一磁钢和第二磁钢相接合形成第一充磁界面并设置于支架的上表面，该两者极性相反，第三磁钢和第四磁钢相接合形成第二充磁界面并设置于支架的下表面，该两者极性相反，第一音圈与第一磁钢和第二磁钢相对间隔设置以产生沿第一方向的驱动力，第二音圈与第三磁钢和第四磁钢相对间隔设置以产生沿第二方向的驱动力，两方向互成夹角且均垂直于厚度方向，两充磁界面互成夹角。通过上述设计，使磁路两个方向的驱动力相对解耦，减少两个磁路相互的影响；同时两个方向的驱动磁路共用，比单独驱动的磁路有明显增强。

Description

一种双向驱动磁路 技术领域
本实用新型涉及线性马达安装结构领域，具体涉及一种双向驱动磁路。
 背景技术
线性振动电机是一种利用电磁力的产生原理将电能转换为机械能的器件，线性振动电机通常安装在便携式移动设备内，以产生振动反馈，如手机的振动或者游戏机的振动反馈等。
其中线性振动电机传统的双向驱动磁路为斜向充磁结构(仅有一磁钢且磁钢两永磁铁的充磁方向沿着对角线方向设置)，该种结构是在两个方向分别布置磁路进行驱动，或者通过分解驱动力来达到双向驱动的目的。但是该种结构存在着以下弊端：在两个方向分别布置磁路时，相当于每个方向单独驱动，磁路利用率不高；而通过分解驱动力的方法会使得两个方向的驱动力相互耦合，影响了各自磁路的作用。
 技术问题
因此，有必要提供一种具有新结构的双向驱动磁路。
 技术解决方案
本实用新型的目的在于提供一种双向驱动磁路。
本实用新型的技术方案如下：
一种双向驱动磁路，包括支架、第一音圈、第二音圈以及固定于所述支架的第一磁钢、第二磁钢、第三磁钢、第四磁钢，所述第一磁钢、所述第二磁钢、所述第三磁钢和所述第四磁钢均沿厚度方向充磁，所述支架包括相对设置的上表面和下表面，所述第一磁钢和第二磁钢相接合形成第一充磁界面并设置于所述支架的上表面，所述第一磁钢和所述第二磁钢极性相反，所述第三磁钢和第四磁钢相接合形成第二充磁界面并设置于所述支架的下表面，所述第三磁钢和所述第四磁钢极性相反，所述第一音圈与所述第一磁钢和第二磁钢相对间隔设置以产生沿第一方向的驱动力，所述第二音圈与所述第三磁钢和第四磁钢相对间隔设置以产生沿第二方向的驱动力，所述第一方向和所述第二方向互成夹角且均垂直于所述厚度方向，所述第一充磁界面和第二充磁界面互成夹角。
进一步地，所述第一充磁界面和第二充磁界面相互垂直。
进一步地，所述第一音圈呈跑道形，其具有沿平行于长轴方向的第一轴线，所述第一轴线平行于所述第一充磁界面。
进一步地，所述第二音圈呈跑道形，其具有沿平行于长轴方向的第二轴线，所述第二轴线平行于所述第二充磁界面。
进一步地，所述第一方向垂直于所述第二方向。
进一步地，所述支架采用导磁材料制成。
进一步地，所述第一音圈和第二音圈中心内设置有铁芯，所述第一音圈和第二音圈的侧面设置有导磁片，所述导磁片设置于所述第一音圈和第二音圈远离相邻磁钢的侧面上。
 有益效果
本实用新型的有益效果在于：一种双向驱动磁路，包括支架、第一音圈、第二音圈以及固定于支架的第一磁钢、第二磁钢、第三磁钢、第四磁钢，第一磁钢、第二磁钢、第三磁钢和第四磁钢均沿厚度方向充磁，支架包括相对设置的上表面和下表面，第一磁钢和第二磁钢相接合形成第一充磁界面并设置于支架的上表面，第一磁钢和第二磁钢极性相反，第三磁钢和第四磁钢相接合形成第二充磁界面并设置于支架的下表面，第三磁钢和第四磁钢极性相反，第一音圈与第一磁钢和第二磁钢相对间隔设置以产生沿第一方向的驱动力，第二音圈与第三磁钢和第四磁钢相对间隔设置以产生沿第二方向的驱动力，第一方向和第二方向互成夹角且均垂直于厚度方向，第一充磁界面和第二充磁界面互成夹角。本实用新型通过上述设计，能够使磁路两个方向的驱动力相对解耦，减少两个磁路相互的影响；同时两个方向的驱动磁路共用，该种方式比单独驱动的磁路有明显增强。
 附图说明
图1为本实用新型的一种双向驱动磁路优选实施方式的结构示意图；
图2为本实用新型的一种双向驱动磁路中间磁钢组件优选实施方式的立体分解示意图；
图3为本实用新型的第一磁钢和第二磁钢优选实施方式设置示意图；
图4为本实用新型的第三磁钢和第四磁钢优选实施方式设置示意图；
图5为本实用新型的第一音圈优选实施方式的立体分解示意图。
图中：100、一种双向驱动磁路；11、第一磁钢；12、第二磁钢；13、第三磁钢；14、第四磁钢；15、支架；20、第一音圈；30、第二音圈；21、铁芯；22、导磁片。
 本发明的实施方式
下面结合附图和实施方式对本实用新型作进一步说明。
如图1、图2、图3、图4所示，本实用新型的一种双向驱动磁路100其中部包括支架15，所述支架15呈板状，将所述支架15平放时，所述支架15朝上的一面为上平面，所述支架15朝下的一面为下平面；本双向驱动磁路还包括第一磁钢11、第二磁钢12、第三磁钢13和第四磁钢14，第一磁钢11和第二磁钢12固定在支架15的上平面上，第三磁钢13和第四磁钢14固定在下平面上，即形成第一磁钢11和第二磁钢12在上端、第三磁钢13和第四磁钢14在下端把支架15夹在中间的设置。其中第一磁钢11、第二磁钢12、第三磁钢13和第四磁钢14均可以根据需要分别设置其形状和大小等结构，本实用新型优选的实施方案中，第一磁钢11和第二磁钢12接合后的部件与第三磁钢13和第四磁钢14接后的部件两者结构相似，即第一磁钢11和第二磁钢12接合后的部件与第三磁钢13和第四磁钢14接后的部件在形状、大小、厚薄等方面相同或者基本相同，本实用新型中两者均为四棱柱体。
优选的，第一磁钢11、第二磁钢12、第三磁钢13和第四磁钢14的充磁方向均沿着自身的厚度方向充磁，确保永磁铁形成的磁感线均能够穿过两侧的音圈。且第一磁钢11和第二磁钢12充磁方向相反，第三磁钢13和第四磁钢14的充磁方向相反。本实用新型中，所述第一磁钢11和第三磁钢13的上端面为N极，下端面为S极，所述第二磁钢12和第四磁钢14的上端面为S极，下端面为N极，其中第一磁钢11和第三磁钢13的充磁方向相同，均为沿自身厚度方向从下往上，第二磁钢12和第四磁钢14的充磁方向相同，均为沿自身厚度方向从上往下。
优选的，所述第一磁钢11和第二磁钢12相结合，其结合面为第一充磁界面，第一充磁界面为平整光滑的竖直平面。同样的，所述第三磁钢13和第四磁钢14相结合，其结合面为第二充磁界面，第二充磁界面为平整光滑的竖直平面。其中所述第一充磁界面和第二充磁界面互成夹角，本实用新型优选的实施方案中，所述第一充磁界面和第二充磁界面设置方向相互垂直。
值得一提的，本实用新型中对第一磁钢11和第二磁钢12的结合界面、第三磁钢13和第四磁钢14的结合界面并不做硬性要求，即第一磁钢11和第二磁钢12、第三磁钢13和第四磁钢14在结合形成一四棱柱的前提下，其中同一四棱柱上的两磁钢大小可相同也可不同，其中本实用新型优选的选用两大小形状相同的磁钢作为第一磁钢11和第二磁钢12，且第一磁钢11和第二磁钢12为左右并列设置，同样的，选用两大小形状相同的磁钢作为第三磁钢13和第四磁钢14，且第三磁钢13和第四磁钢14为上下并列设置。以此实现所述第一充磁界面和第二充磁界面相互垂直。
本实用新型中的支架15材料可为多种，具体的分为导磁材料以及不导磁材料，上述两种类型的材料均能够达到本实用新型的功能，但是通过实验验证得出：当支架15采用不导磁材料制成时，会影响驱动磁路的实现效果。因此，本实用新型优选的采用导磁材料来制作支架15，其中一种可行的实施方案为：采用SPCD制作本实用新型的支架15，其中SPCD指的是日本钢材（JIS标准系列）的一种钢材牌号，表示冲压用冷轧碳素钢薄板及钢带，相当于中国08AL(13237)优质碳素结构钢。
其中第二音圈30与第一音圈20的结构相同，第一音圈20设置在第一磁钢11和第二磁钢12的上方，第二音圈30置于所述第三磁钢13和第四磁钢14下方，第一音圈20和第二音圈30与相邻的磁钢之间存在着间隔，第一音圈20和第二音圈30不与磁钢直接接触。该结构能使两音圈充电时，提供两垂直于磁钢厚度方向的驱动力。其中该两个驱动力的方向互成夹角。
优选的，第一音圈20和第二音圈30均呈椭圆跑道形，第一音圈20具有沿平行于长轴方向的第一轴线，即是第一轴线平行于椭圆跑道中的直线段，且所述第一轴线平行于所述第一充磁界面。同样的第二音圈30具有沿平行于长轴方向的第二轴线，即是第二轴线平行于椭圆跑道中的直线段，且所述第二轴线平行于所述第二充磁界面。本实用新型中，在第一充磁界面和第二充磁界面相互垂直的前提下，第一轴线和第二轴线也相互垂直，即是优选的，第一音圈20和第二音圈30两者空间上也是按着相互垂直的方向设置，使得第一音圈20和第二音圈30能够分别提供两个相互垂直的驱动力。
本实用新型中第一音圈20如图5所示，其中第二音圈30与第一音圈20的结构相似且呈镜像对称，本实用新型中第一音圈20和第二音圈30中部均有一椭圆孔，在椭圆孔内嵌套有一与椭圆孔形状大小相同的铁芯22，同时第一音圈20和第二音圈30远离相邻磁钢的侧面上还设有一导磁片23。其中导磁片23能够起到聚磁和保护音圈的作用。
本实用新型通过上述设计形成的磁路系统中，每个音圈中的电流方向均可单独独立控制，通过控制不同音圈中的电流方向，以形成不同方向的磁场，根据同性相斥、异性相吸的原理，两侧的磁钢会获得不同方向的驱动力，且磁路两个方向的驱动力相对解耦，减少两个磁路相互的影响；同时两个方向的驱动磁路共用，该种方式能够带动振子结构在不同方向上往复振动，从而实现该线性马达多方向振动，带来丰富的振动体验。
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. 一种双向驱动磁路，其特征在于：包括支架、第一音圈、第二音圈以及固定于所述支架的第一磁钢、第二磁钢、第三磁钢、第四磁钢，所述第一磁钢、所述第二磁钢、所述第三磁钢和所述第四磁钢均沿厚度方向充磁，所述支架包括相对设置的上表面和下表面，所述第一磁钢和第二磁钢相接合形成第一充磁界面并设置于所述支架的上表面，所述第一磁钢和所述第二磁钢极性相反，所述第三磁钢和第四磁钢相接合形成第二充磁界面并设置于所述支架的下表面，所述第三磁钢和所述第四磁钢极性相反，所述第一音圈与所述第一磁钢和第二磁钢相对间隔设置以产生沿第一方向的驱动力，所述第二音圈与所述第三磁钢和第四磁钢相对间隔设置以产生沿第二方向的驱动力，所述第一方向和所述第二方向互成夹角且均垂直于所述厚度方向，所述第一充磁界面和第二充磁界面互成夹角。
  2. 根据权利要求1所述的双向驱动磁路，其特征在于：所述第一充磁界面和第二充磁界面相互垂直。
  3. 根据权利要求1所述的双向驱动磁路，其特征在于：所述第一音圈呈跑道形，其具有沿平行于长轴方向的第一轴线，所述第一轴线平行于所述第一充磁界面。
  4. 根据权利要求1所述的双向驱动磁路，其特征在于：所述第二音圈呈跑道形，其具有沿平行于长轴方向的第二轴线，所述第二轴线平行于所述第二充磁界面。
  5. 根据权利要求2所述的双向驱动磁路，其特征在于：所述第一方向垂直于所述第二方向。
  6. 根据权利要求1所述的双向驱动磁路，其特征在于：所述支架采用导磁材料制成。
  7. 根据权利要求1所述的双向驱动磁路，其特征在于：所述第一音圈和第二音圈中心内设置有铁芯，所述第一音圈和第二音圈的侧面设置有导磁片，所述导磁片设置于所述第一音圈和第二音圈远离相邻磁钢的侧面上。
PCT/CN2020/102724 2020-07-10 2020-07-17 一种双向驱动磁路 Ceased WO2022006983A1 (zh)

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