WO2021119915A1 - 一种双频振动马达 - Google Patents

一种双频振动马达 Download PDF

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Publication number
WO2021119915A1
WO2021119915A1 PCT/CN2019/125635 CN2019125635W WO2021119915A1 WO 2021119915 A1 WO2021119915 A1 WO 2021119915A1 CN 2019125635 W CN2019125635 W CN 2019125635W WO 2021119915 A1 WO2021119915 A1 WO 2021119915A1
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WO
WIPO (PCT)
Prior art keywords
magnet
voice coil
mover
vibration motor
sliding groove
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PCT/CN2019/125635
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English (en)
French (fr)
Inventor
李刚
张永久
吴瑶
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
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Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Priority to PCT/CN2019/125635 priority Critical patent/WO2021119915A1/zh
Publication of WO2021119915A1 publication Critical patent/WO2021119915A1/zh

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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
    • H02K33/12—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems

Definitions

  • the invention relates to the technical field of vibration motors, in particular to a dual-frequency vibration motor used for electronic sound generating devices.
  • Existing vibration motors generally include a casing, a stator arranged on the inner wall of the casing, and a mover movable relative to the stator.
  • the mover includes a magnetic steel
  • the stator includes a voice coil. Under the action, the mover moves.
  • the vibration motor of this structure can only move in one direction, and can only vibrate at one vibration frequency when vibrating, and the vibration cannot meet the tactile feedback requirements of the game handle.
  • the technical problem to be solved by the present invention is to provide a dual-frequency vibration motor, which aims to solve the problem that the existing single-frequency vibration motor can only move in one direction and cannot meet the tactile feedback requirements of the game handle.
  • a dual-frequency vibration motor includes a housing with a housing space, and a stator and a mover housed in the housing space.
  • the housing includes a top wall, A bottom wall opposite to the top wall and a side wall connecting the top wall and the bottom wall.
  • the side wall includes two opposite first side walls and a first side wall connecting the first side walls. Two side walls,
  • the stator includes an upper voice coil arranged on the top wall and an accommodating cavity in the middle, a first magnetic steel arranged in the accommodating cavity, a second magnetic steel arranged on the bottom wall, and respective A first side voice coil and a second side voice coil provided on the two first side walls;
  • the mover is arranged between the first magnetic steel and the second magnetic steel, and is connected to the first magnetic steel, the second magnetic steel, the upper voice coil, the first side voice coil and the The second side voice coils are arranged at intervals, and the mover is movable in a first direction toward the first side wall and a second direction toward the second side wall;
  • the mover is a magnetic member, the generated magnetic field has a magnetic field component in the first direction and the third direction toward the top wall and the bottom wall, and the first magnet and the second magnet are paired The mover is attractive.
  • the mover includes a second pair of magnets, a first pair of magnets, and a second pair of magnets that are arranged one after another in sequence, wherein the first pair of magnets includes A third magnet and a fourth magnet attracted side by side in one direction, and the second magnet pair includes a fifth magnet and a sixth magnet attracted side by side in a first direction, the third magnet Connected with the fifth magnet, and the fourth magnet connected with the sixth magnet;
  • the magnetization directions of the third magnet and the fourth magnet are perpendicular to each other, and are not parallel to the first direction and the third direction;
  • the magnetizing directions of the fifth magnet and the fourth magnet are parallel, but the magnetizing directions are opposite;
  • the magnetizing directions of the sixth magnet and the third magnet are parallel, but the magnetizing directions are opposite.
  • the magnetizing directions of the third magnet and the fourth magnet are both perpendicular to the second direction and form an angle of 45° with the third direction.
  • the mover further includes a mass block provided with a U-shaped groove, the extending direction of the U-shaped groove is the same as the first direction, and the first pair of magnets and the second pair of magnets are opposed to each other. Placed in the U-shaped groove.
  • the mover further includes a base
  • the top surface of the base is provided with a first sliding groove along the first direction
  • the bottom surface of the mass block is provided with a second sliding groove that cooperates with the first sliding groove
  • the first sliding groove is provided with The first rolling ball and the first rolling ball are simultaneously accommodated in the second sliding groove.
  • the bottom wall is provided with a third chute along the second direction
  • the bottom surface of the base is provided with a fourth chute that cooperates with the third chute
  • the third chute is provided There is a second ball, and the second ball is simultaneously accommodated in the fourth sliding groove.
  • first side voice coil and the second side voice coil are paired and arranged directly opposite to each other.
  • the inner wall of the second side wall is provided with foam at the position facing the mover.
  • it also includes a limit glue arranged between the first magnet and the mover.
  • a magnetic conductive sheet is arranged between the upper voice coil and the top wall.
  • the present invention has the beneficial effects that when the dual-frequency vibration motor of the present invention is energized, the upper voice coil provides driving force in the first direction, and the first side voice coil and the second side voice coil provide the second direction.
  • the driving force causes the mover to vibrate at a specific frequency in two directions, and the resulting vibration can meet the design of rich game tactile effects.
  • the first magnetic steel and the second magnetic steel form a magnetic spring relative to the mover, which is more reliable than the traditional mechanical shrapnel structure.
  • Fig. 1 is a perspective view of an embodiment of a dual-frequency vibration motor according to the present invention.
  • Figure 2 is an exploded view corresponding to Figure 1.
  • Fig. 3 is an embodiment of a magnetic circuit system of the present invention.
  • Fig. 4 is a cross-sectional view taken along the YZ plane of Fig. 1.
  • Fig. 5 is a schematic diagram of a storage method of the magnetic circuit system of the present invention.
  • Fig. 6 is a diagram of the connection relationship between the base of the present invention and the first ball.
  • Fig. 7 is a diagram of the connection relationship between the housing and the second ball of the present invention.
  • FIG. 8 is a schematic diagram of the assembly of the ball 4A and the ball 4B.
  • Fig. 9 is a circuit connection embodiment diagram of the upper voice coil, the first side voice coil and the second side voice coil of the present invention.
  • FIG. 1 and FIG. 2 The embodiment of a dual-frequency vibration motor provided by the present invention is shown in FIG. 1 and FIG. 2, and includes a housing 1 having a containing space, and a stator and a mover contained in the containing space.
  • the housing 1 plays a role of accommodating the stator and the mover, so the specific structure is not limited.
  • the housing 1 in this embodiment is shown in FIG. 2 and includes a U-shaped shell 11, an upper cover plate 12 covering the top of the U-shaped shell 11, and two front and back covers respectively covering the U-shaped shell 11.
  • the front side panel 13A and the rear side panel 13B on the side.
  • the inward side of the upper cover 12 constitutes the top wall 121 of the housing 1
  • the inner side of the bottom of the U-shaped housing 11 (opposite the top wall 121) constitutes the bottom wall 111
  • the left and right walls of the U-shaped housing 11 face the housing 1.
  • the inner side constitutes the first side wall 112, and the two first side walls 112 are arranged oppositely.
  • the side of the front side plate 13A and the rear side plate 13B facing the inside of the housing 1 constitutes the second side wall 131, and the two second sides
  • the walls 131 are arranged oppositely.
  • the stator includes an upper voice coil 21 arranged on the top wall 121 with a receiving cavity 211 in the middle, a first magnetic steel 22 arranged in the receiving cavity 211, and a second magnetic steel 23 arranged on the bottom wall 111.
  • the first side voice coil 24A and the second side voice coil 24B respectively provided on the two first side walls 112, preferably, the first side voice coil 24A and the second side voice coil 24B Are arranged in pairs and opposite;
  • the mover is arranged between the first magnetic steel 22 and the second magnetic steel 23, and is connected to the first magnetic steel 22, the second magnetic steel 23, the upper voice coil 21,
  • the first side voice coil 24A and the second side voice coil 24B are spaced apart, and the mover moves in the first direction (Y direction in the figure) toward the first side wall 112 and toward the second side.
  • the second direction (X direction in the figure) of the wall 131 is movable; the mover is a magnetic member, and the magnetic field generated is in the first direction (Y direction in the figure) and toward the top wall 121 and the bottom wall.
  • the third direction of 111 (the Z direction in the figure) has a magnetic field component, and the first magnetic steel 22 and the second magnetic steel 23 generate attractive force to the mover.
  • the working principle of the dual-frequency vibration motor of this embodiment is: when the upper voice coil 21, the first side voice coil 24A, and the second side voice coil 24B are not energized, the mover receives the first magnet 22 upward and the second magnet respectively.
  • the downward pulling force F of the steel 23 is in a stable equilibrium state.
  • the mover will be reacted by the Lorentz force.
  • the upper voice coil 21 provides the Y-direction driving force to make the mover move in the Y-direction
  • the first side voice coil 24A and the second side voice coil 24B provide the X-direction drive force to make the mover move in the X direction. .
  • the first magnet 22 and the second magnet 23 will attract the mover to the initial position.
  • the mover vibrates at a specific frequency in the X and Y directions, respectively, and the resulting vibration can meet the design of rich game tactile effects.
  • the first magnetic steel 22 and the second magnetic steel 23 form a magnetic spring relative to the mover, which is more reliable than the traditional mechanical spring structure.
  • the present invention provides an embodiment of the magnetic circuit system design of the mover.
  • the mover includes a third magnet 31A, a fourth magnet 31B, a fifth magnet 32A, and a fourth magnet.
  • the six magnets 32B, the third magnet 31A and the fourth magnet 31B are attracted side by side along the first direction (Y direction) to form the first magnet pair 22.
  • the fifth magnet 32A and the sixth magnet 32B are along the first The direction (Y direction) is attracted side by side to form the second magnetic steel pair 23.
  • the arrangement sequence of the magnets is the second magnet pair 23, the first magnet pair 22, and the second magnet pair 23, in which the third magnet 31A and the fifth magnet 32A
  • the fourth magnet 31B is connected to the sixth magnet 32B.
  • the magnetizing directions of the fifth magnet 32A and the fourth magnet 31B are parallel, but the magnetizing directions are opposite; the magnetizing directions of the sixth magnet 32B and the third magnet 31A are parallel, but the magnetizing directions are opposite.
  • the magnetizing directions of the third magnet 31A and the fourth magnet 31B are perpendicular to the second direction (X direction), and are 45 with the third direction (Z direction).
  • °Included angle that is, the cross-sections of the six magnets in the figure are square, and the magnetizing direction is diagonal. Please refer to the cross-sectional view of Figure 4.
  • a mass 33 with a U-shaped groove 331 can be provided to accommodate the above-mentioned magnetic circuit system and maintain the stability of the magnetic steel structure.
  • the extension of the U-shaped groove 331 The direction is the same as the first direction (Y direction).
  • the present invention also provides a solution for supporting the mover to be movable in the Y direction or the X direction, taking the Y direction (first direction) movable as an example.
  • a base 34 is provided on the bottom surface of the mass 33, as shown in FIG. 2 and FIG. 6.
  • a hollow portion 341 is provided in the middle of the base 34, and the second magnet 23 on the bottom wall 111 faces the hollow Part 341 to avoid weakening of the attractive force between the second magnet 23 and the magnetic circuit system.
  • a number of first bosses 342 can be provided on the top surface of the base 34.
  • the top surface of the first boss 342 is provided with a first sliding groove 343 along the first direction (Y direction).
  • the bottom surface of the block 33 is provided with a second slide groove (not shown in the figure) that cooperates with the first slide groove 343, and the first slide groove 343 is provided with a first ball 4A, and the first ball 4A is simultaneously accommodated in the first slide groove 343.
  • the diameter LA of the first ball 4A is sufficient to lift the mass 33. As shown in FIG. 8, it is ensured that there is a gap between the mass 33 and the base 34, so that the mass 33 is opposite to the base.
  • the first ball 4A can move in the Y direction.
  • a number of second bosses 113 can be provided on the bottom wall 111.
  • the top surface of the second boss 113 is provided with a second boss
  • the third sliding groove 114 in the direction of the base 34 is provided with a fourth sliding groove (not shown in the figure) that cooperates with the third sliding groove 114 on the bottom surface of the base 34, and the third sliding groove 114 is provided with a second ball 4B.
  • the ball 4B is accommodated in the fourth sliding groove at the same time, and the diameter LB of the second ball 4B is sufficient to lift the base 34 to ensure that there is a gap between the base 34 and the bottom wall 111 of the housing 1 and the second magnet 23.
  • the base 34 relative to the bottom wall 111 of the housing 1 can move in the X direction through the second ball 4B.
  • the mover vibrates in the second direction (X-direction)
  • it may collide with the front side plate 13A and the rear side plate 13B, so it can be arranged on the inner side of the front side plate 13A and the rear side plate 13B facing the mover.
  • Foam (not shown in the picture) to cushion the impact.
  • a limit glue 5 can be arranged between the two, for example, the limit glue 5 is fixed on the first magnetic steel.
  • a magnetic conductive sheet 6 may be arranged between the upper voice coil 21 and the top wall 121.
  • the circuit board 7 can be fixed on the bottom wall 111, and the circuit board 7 is electrically connected to three voice coils.
  • An example of circuit connection is shown in FIG. 9.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

本发明提供了一种双频振动马达，包括具有收容空间的壳体，以及收容于收容空间内的定子和动子，定子包括设置在顶壁上并在中间设置有容纳腔的上音圈、设置于容纳腔的第一磁钢、设置于底壁上的第二磁钢，以及分别设置在两个第一侧壁上的第一侧音圈和第二侧音圈；动子设置在第一磁钢和第二磁钢之间，动子在朝第一侧壁的第一方向和朝第二侧壁的第二方向是可活动的；动子为磁性件，产生的磁场在第一方向和朝顶壁、底壁的第三方向具有磁场分量，第一磁钢和第二磁钢对动子具有吸引力。通电时，上音圈提供第一方向驱动力，第一侧音圈和第二侧音圈提供第二方向驱动力，使动子在两个方向上分别以特定的频率振动，产生的震感可以满足丰富的游戏触感效果设计。

Description

一种双频振动马达 技术领域
本发明涉及振动马达技术领域，尤其涉及一种用于电子发声器件的双频振动马达。
 背景技术
现有的振动马达一般包括壳体、设置在壳体内壁上的定子和可相对所述定子运动的动子，其中动子包括磁钢，定子包括音圈，音圈通电时，在安培力的作用下，动子发生运动。但是这种结构的振动马达只能在一个方向上运动，振动时只能以一个振动频率振动，震感无法满足游戏手柄的触觉反馈要求。
 技术问题
本发明所要解决的技术问题在于提供一种双频振动马达，旨在解决现有的单频振动马达只能在一个方向上运动无法满足游戏手柄的触觉反馈要求。
 技术解决方案
为解决上述技术问题，本发明是这样实现的，一种双频振动马达，包括具有收容空间的壳体，以及收容于所述收容空间内的定子和动子，所述壳体包括顶壁、与所述顶壁相对设置的底壁、以及连接所述顶壁和所述底壁的侧壁，所述侧壁包括两个相对设置的第一侧壁和连接所述第一侧壁的第二侧壁，
所述定子包括设置在所述顶壁上并在中间设置有容纳腔的上音圈、设置于所述容纳腔的第一磁钢、设置于所述底壁上的第二磁钢，以及分别设置在两个所述第一侧壁上的第一侧音圈和第二侧音圈；
所述动子设置在所述第一磁钢和第二磁钢之间，并与所述第一磁钢、所述第二磁钢、所述上音圈、所述第一侧音圈和所述第二侧音圈间隔设置，所述动子在朝所述第一侧壁的第一方向和朝所述第二侧壁的第二方向是可活动的；
所述动子为磁性件，产生的磁场在所述第一方向和朝所述顶壁、所述底壁的第三方向具有磁场分量，所述第一磁钢和所述第二磁钢对所述动子具有吸引力。
进一步地，沿所述第二方向，所述动子包括依次相接排列的第二磁钢对、第一磁钢对和第二磁钢对，其中，所述第一磁钢对包括沿第一方向并排吸引在一起的第三磁钢和第四磁钢，所述第二磁钢对包括沿第一方向并排吸引在一起的第五磁钢和第六磁钢，所述第三磁钢和所述第五磁钢相接，所述第四磁钢与所述第六磁钢相接；
所述第三磁钢和所述第四磁钢的充磁方向相互垂直，并且均与所述第一方向、所述第三方向不平行；
所述第五磁钢和所述第四磁钢的充磁方向平行，但充磁方向相反；
所述第六磁钢和所述第三磁钢的充磁方向平行，但充磁方向相反。
进一步地，所述第三磁钢和所述第四磁钢的充磁方向均垂直于所述第二方向，并与所述第三方向成45°夹角。
进一步地，所述动子还包括设置有U形槽的质量块，所述U形槽的延伸方向与所述第一方向相同，所述第一磁钢对和所述第二磁钢对容置在所述U形槽中。
进一步地，所述动子还包括一基座；
所述基座的顶面设置有沿第一方向的第一滑槽，所述质量块的底面设置有与所述第一滑槽配合的第二滑槽，所述第一滑槽中设置有第一滚珠，所述第一滚珠同时容置在所述第二滑槽中。
进一步地，所述底壁上设置有沿第二方向的第三滑槽，所述基座的底面设置有与所述第三滑槽配合的第四滑槽，所述第三滑槽中设置有第二滚珠，所述第二滚珠同时容置在所述第四滑槽中。
进一步地，所述第一侧音圈和所述第二侧音圈成对并正对设置。
进一步地，所述第二侧壁的内壁正对所述动子处设置有泡棉。
进一步地，还包括设置于所述第一磁钢和所述动子之间的限位胶。
进一步地，所述上音圈与所述顶壁之间设置有导磁片。
 有益效果
本发明与现有技术相比，有益效果在于：本发明的双频振动马达通电时，上音圈提供了第一方向驱动力，第一侧音圈和第二侧音圈提供了第二方向驱动力，使动子在两个方向上分别以特定的频率进行振动，产生的震感可以满足丰富的游戏触感效果设计。此外，本发明中第一磁钢和第二磁钢相对动子构成磁力弹簧，相比传统的机械弹片结构，可靠性更好。
 附图说明
图1是本发明实的一种双频振动马达实施例的立体图。
图2是图1对应的爆炸图。
图3是本发明的一种磁路系统的实施例。
图4是沿图1的YZ平面的剖视图。
图5是本发明的磁路系统的一种收容方式示意图。
图6是本发明的基座与第一滚珠的连接关系图。
图7是本发明的壳体与第二滚珠的连接关系图。
图8是滚珠4A、滚珠4B的装配示意图。
图9是本发明的上音圈、第一侧音圈和第二侧音圈的一种电路连接实施例图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供的一种双频振动马达实施例如图1和图2所示，包括具有收容空间的壳体1，以及收容于所述收容空间内的定子和动子。其中壳体1起着容置定子和动子的作用，因此具体的结构不作限制。本实施例中的壳体1如图2所示，包括U型外壳11、盖合在所述U型外壳11顶部的上盖板12，以及分别盖合在所述U型外壳11前后两个侧面的前侧板13A和后侧板13B。其中，上盖板12朝内的一侧构成壳体1的顶壁121，U型外壳11的底部内侧（与顶壁121相对）构成底壁111，U型外壳11左右两壁朝壳体1内部的一侧构成第一侧壁112，2个第一侧壁112相对设置，前侧板13A和后侧板13B朝壳体1内部的一侧构成第二侧壁131，2个第二侧壁131相对设置。定子包括设置在顶壁121上并在中间设置有容纳腔211的上音圈21、设置于所述容纳腔211的第一磁钢22、设置于所述底壁111上的第二磁钢23，以及分别设置在两个所述第一侧壁112上的第一侧音圈24A和第二侧音圈24B，优选的，所述第一侧音圈24A和所述第二侧音圈24B成对并正对设置；动子设置在第一磁钢22和第二磁钢23之间，并与所述第一磁钢22、所述第二磁钢23、所述上音圈21、所述第一侧音圈24A和所述第二侧音圈24B间隔设置，所述动子在朝所述第一侧壁112的第一方向（图中Y向）和朝所述第二侧壁131的第二方向（图中X向）是可活动的；所述动子为磁性件，产生的磁场在第一方向（图中Y向）和朝所述顶壁121、所述底壁111的第三方向（图中Z向）具有磁场分量，所述第一磁钢22和所述第二磁钢23对所述动子产生吸引力。
本实施例的双频振动马达工作原理为：当上音圈21、第一侧音圈24A和第二侧音圈24B不通电时，动子分别收到第一磁钢22向上和第二磁钢23向下的拉力F，处于稳定平衡状态。当三个音圈均通电时，动子会受到洛伦兹力的反作用。其中，上音圈21提供了Y向驱动力，使动子在Y向发生移动，第一侧音圈24A和第二侧音圈24B提供了X向驱动力，使动子在X向发生移动。动子偏离初始位置后，第一磁钢22和第二磁钢23会将动子往初始位置处吸引。动子在洛伦兹力、拉力F以及运动惯性的作用下，在X和Y两个方向上分别以特定的频率进行振动，产生的震感可以满足丰富的游戏触感效果设计。此外，本实施例中第一磁钢22和第二磁钢23相对动子构成磁力弹簧，相比传统的机械弹片结构，可靠性更好。
基于上述实施例，本发明提供了一种动子的磁路系统设计的实施例，如图3所示，动子包括第三磁钢31A、第四磁钢31B、第五磁钢32A和第六磁钢32B，第三磁钢31A和第四磁钢31B沿第一方向（Y方向）并排吸引在一起构成第一磁钢对22，第五磁钢32A和第六磁钢32B沿第一方向（Y方向）并排吸引在一起构成第二磁钢对23。沿第二方向（X方向），磁钢的排列顺序为第二磁钢对23、第一磁钢对22和第二磁钢对23，其中第三磁钢31A和所述第五磁钢32A相接，所述第四磁钢31B与所述第六磁钢32B相接。第五磁钢32A和第四磁钢31B的充磁方向平行，但充磁方向相反；所述第六磁钢32B和所述第三磁钢31A的充磁方向平行，但充磁方向相反。较佳的是，所述第三磁钢31A和所述第四磁钢31B的充磁方向均垂直于所述第二方向（X方向），并与所述第三方向（Z方向）成45°夹角，即图中六个磁钢的截面为正方形，充磁方向为对角线方向，可参考图4的截面图。
作为本发明的一个较佳实施例，可以设置一带有U形槽331的质量块33来容置上述磁路系统，保持磁钢结构的稳定性，如图5所示，U形槽331的延伸方向与第一方向（Y方向）相同。
基于上述较佳实施例，本发明还提供了一种支撑动子Y方向或X方向可运动的方案，以Y方向（第一方向）可运动为例。具体是在质量块33的底面设置一基座34，如图2、图6所示，较佳地，基座34中间设置有镂空部341，底壁111上的第二磁钢23正对镂空部341，以避免第二磁钢23与磁路系统之间的吸引力遭到削弱。可以在基座34的顶面设置若干第一凸台342，图中以4个为例，第一凸台342的顶面设置有沿第一方向（Y向）的第一滑槽343，质量块33的底面设置有与第一滑槽343配合的第二滑槽（图中未画出），第一滑槽343中设置有第一滚珠4A，所述第一滚珠4A同时容置在所述第二滑槽中，第一滚珠4A的直径LA大小满足将质量块33顶起，如图8所示，确保质量块33与基座34之间存在间隙，这样质量块33相对底座，通过第一滚珠4A可沿Y向运动。
进一步地，对于动子的第二方向（X方向）的运动，可以在底壁111上设置若干第二凸台113，如图7所示，第二凸台113的顶面设置有沿第二方向的第三滑槽114，基座34的底面设置有与第三滑槽114配合的第四滑槽（图中未画出），第三滑槽114中设置有第二滚珠4B，第二滚珠4B同时容置在第四滑槽中，第二滚珠4B的直径LB大小满足将基座34顶起，确保基座34与壳体1底壁111、第二磁钢23之间存在间隙，这样基座34相对壳体1底壁111，通过第二滚珠4B可沿X向运动。滚珠4A和滚珠4B的装配图，可进一步参考图8。当动子在第二方向（X方向）振动时，可能会碰撞到前侧板13A和后侧板13B，因此可以在前侧板13A和后侧板13B的内侧正对所述动子处设置泡棉（图中未画出），以缓冲冲击力。
如图2和图4所示，为防止动子与上音圈21发生碰撞，可以在两者之间设置限位胶5，例如，将限位胶5固定在第一磁钢上。为减小漏磁，提高磁场利用率，可以在上音圈21与顶壁121之间设置导磁片6。
上述实施例中，可将电路板7固定在底壁111上，电路板7与三个音圈电连接，一种电路连接实施例如图9所示。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种双频振动马达，包括具有收容空间的壳体，以及收容于所述收容空间内的定子和动子，所述壳体包括顶壁、与所述顶壁相对设置的底壁、以及连接所述顶壁和所述底壁的侧壁，所述侧壁包括两个相对设置的第一侧壁和连接所述第一侧壁的第二侧壁，其特征在于，
    所述定子包括设置在所述顶壁上并在中间设置有容纳腔的上音圈、设置于所述容纳腔的第一磁钢、设置于所述底壁上的第二磁钢，以及分别设置在两个所述第一侧壁上的第一侧音圈和第二侧音圈；
    所述动子设置在所述第一磁钢和第二磁钢之间，并与所述第一磁钢、所述第二磁钢、所述上音圈、所述第一侧音圈和所述第二侧音圈间隔设置，所述动子在朝所述第一侧壁的第一方向和朝所述第二侧壁的第二方向是可活动的；
    所述动子为磁性件，产生的磁场在所述第一方向和朝所述顶壁、所述底壁的第三方向具有磁场分量，所述第一磁钢和所述第二磁钢对所述动子具有吸引力。
  2. 如权利要求1所述的双频振动马达，其特征在于，沿所述第二方向，所述动子包括依次相接排列的第二磁钢对、第一磁钢对和第二磁钢对，其中，所述第一磁钢对包括沿第一方向并排吸引在一起的第三磁钢和第四磁钢，所述第二磁钢对包括沿第一方向并排吸引在一起的第五磁钢和第六磁钢，所述第三磁钢和所述第五磁钢相接，所述第四磁钢与所述第六磁钢相接；
    所述第三磁钢和所述第四磁钢的充磁方向相互垂直，并且均与所述第一方向、所述第三方向不平行；
    所述第五磁钢和所述第四磁钢的充磁方向平行，但充磁方向相反；
    所述第六磁钢和所述第三磁钢的充磁方向平行，但充磁方向相反。
  3. 如权利要求2所述的双频振动马达，其特征在于，所述第三磁钢和所述第四磁钢的充磁方向均垂直于所述第二方向，并与所述第三方向成45°夹角。
  4. 如权利要求2所述的双频振动马达，其特征在于，所述动子还包括设置有U形槽的质量块，所述U形槽的延伸方向与所述第一方向相同，所述第一磁钢对和所述第二磁钢对容置在所述U形槽中。
  5. 如权利要求4所述的双频振动马达，其特征在于，所述动子还包括一基座；
    所述基座的顶面设置有沿第一方向的第一滑槽，所述质量块的底面设置有与所述第一滑槽配合的第二滑槽，所述第一滑槽中设置有第一滚珠，所述第一滚珠同时容置在所述第二滑槽中。
  6. 如权利要求5所述的双频振动马达，其特征在于，所述底壁上设置有沿第二方向的第三滑槽，所述基座的底面设置有与所述第三滑槽配合的第四滑槽，所述第三滑槽中设置有第二滚珠，所述第二滚珠同时容置在所述第四滑槽中。
  7. 如权利要求1所述的双频振动马达，其特征在于，所述第一侧音圈和所述第二侧音圈成对并正对设置。
  8. 如权利要求1所述的双频振动马达，其特征在于，所述第二侧壁的内壁正对所述动子处设置有泡棉。
  9. 如权利要求1所述的双频振动马达，其特征在于，还包括设置于所述第一磁钢和所述动子之间的限位胶。
  10. 如权利要求1所述的双频振动马达，其特征在于，所述上音圈与所述顶壁之间设置有导磁片。
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CN207530693U (zh) * 2017-12-12 2018-06-22 歌尔科技有限公司 一种线性振动马达
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CN110350753A (zh) * 2019-06-29 2019-10-18 瑞声科技（南京）有限公司 一种振动马达

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CN205490073U (zh) * 2016-01-04 2016-08-17 瑞声光电科技(常州)有限公司 振动电机
US20180297065A1 (en) * 2017-04-14 2018-10-18 Aac Technologies Pte, Ltd. Vibration motor
CN207530693U (zh) * 2017-12-12 2018-06-22 歌尔科技有限公司 一种线性振动马达
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