WO2018095047A1 - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
- Publication number
- WO2018095047A1 WO2018095047A1 PCT/CN2017/092492 CN2017092492W WO2018095047A1 WO 2018095047 A1 WO2018095047 A1 WO 2018095047A1 CN 2017092492 W CN2017092492 W CN 2017092492W WO 2018095047 A1 WO2018095047 A1 WO 2018095047A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fixed end
- fixed
- cantilever
- connecting arm
- mass
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
Definitions
- the present invention relates to the field of consumer electronics, and more particularly to a linear vibration motor.
- micro-vibration motors are generally used for system feedback, such as incoming call prompts of mobile phones, vibration feedback of game machines, and the like.
- system feedback such as incoming call prompts of mobile phones, vibration feedback of game machines, and the like.
- various internal components also need to adapt to this trend, and micro-vibration motors are no exception.
- the existing micro-vibration motor generally includes an upper cover, a lower cover that forms a vibration space with the upper cover, a vibrator (including a mass and a permanent magnet) that linearly reciprocates in the vibration space, connects the upper cover, and reciprocates the vibrator A vibrating elastic support and a coil located a distance below the vibrator.
- a vibrator including a mass and a permanent magnet
- the elastic support members are commonly used with springs or springs, vibration motors of different shapes and different performances, and the design of the shape and size of the springs or springs are also different.
- the square or rectangular motor usually has the largest surface vibration, and the fulcrum pitch is large, and the elastic piece design is particularly important.
- the single elastic piece or the double elastic piece structure has the rigidity of the elastic piece in the dimension other than the vibration direction, and the single support point is easy to appear three. Dimension deflection, double fulcrum is prone to two-dimensional rotation around the axis.
- the current linear or rectangular Z/Y linear motor has a serious first-order natural frequency polarization problem due to the unreasonable structure of the elastic support member, and the vibration stability is poor, and the vibration deflection is prone to occur, resulting in collision noise.
- an object of the present invention is to provide a linear vibration motor to solve the severe first-order natural frequency polarization problem of the linear vibration motor in the prior art, which has poor vibration stability, is prone to vibration deflection, and causes collision noise. .
- the linear vibration motor provided by the present invention comprises a housing and a vibration component housed in the housing;
- the vibration assembly includes a mass and an elastic support; the elastic support is disposed between the upper end surface of the mass and the inner surface of the top of the housing to suspend the mass in the housing through the elastic support; the elastic support is a sheet
- the structure includes a first fixed end, a second fixed end, and a connecting arm disposed between the first fixed end and the second fixed end, and symmetrically distributed cantilevers are disposed on both sides of the connecting arm; the first fixed end and the second One of the fixed ends is fixed to the mass, and the other of the first fixed end and the second fixed end is fixed to the housing.
- a preferred solution is that the two ends of the connecting arm are respectively connected with the first fixed end and the second fixed end; one end of the cantilever is connected with the first fixed end, and the other end of the cantilever is separated from the second fixed end; One end of the two fixed end phases is fixed to the casing or the mass corresponding to the second fixed end.
- a preferred solution is that one end of the connecting arm is connected to the first fixed end, and the other end of the connecting arm is separated from the second fixed end; two ends of the cantilever are respectively respectively connected to the first fixed end and the second fixed end.
- the connecting end of the connecting arm and the second fixed end is fixed to the housing or the mass corresponding to the second fixed end.
- first fixed end, the second fixed end, the connecting arm, and the cantilever are integrally formed.
- the connecting arm and the cantilever are disposed offset from each other when viewed from the side; and the effective arms of the connecting arm and the cantilever are equal in length so that the connecting arm during the movement of the mass The same amount of compression and deformation as the cantilever.
- the connecting arm and the cantilever form a parallelogram as viewed from the side.
- the vibration component further includes a magnetic circuit system fixed in the mass; the magnetic circuit system includes a basin frame fixedly connected to the mass, a magnet housed in the basin frame, and a magnet fixed away from the basin frame. The side of the Huashi.
- a preferred solution further includes a stator assembly housed in the housing; wherein the stator assembly includes a flexible circuit board fixed in the housing, a coil fixed on the flexible circuit board; and a magnet formed between the sidewall of the basin frame The magnetic gap, the coil is suspended in the magnetic gap.
- the housing includes an upper case and a lower case that are adapted to be connected, and the flexible circuit board is fastened or adhered to the inner side wall of the lower case.
- the mass is a tungsten steel block, a nickel steel block or a tungsten-nickel alloy block.
- the three-dimensional stiffness difference can be balanced, so that two vibration directions are removed.
- the stiffness of the dimension is much larger than the stiffness in the vibration dimension, which can achieve the smooth vibration of the vibrating component, can effectively avoid the rotation of the fulcrum coaxially, improve the polarization and deflection of the square or rectangular Z-direction or Y-direction linear vibration motor, and reduce the rubbing, Improve noise; in addition, it is easy to assemble, saves vibration space, and improves the vibration experience of linear vibration motors.
- FIG. 1 is an exploded view of a linear vibration motor in accordance with an embodiment of the present invention
- Figure 2 is a cross-sectional view taken along line A of Figure 1;
- Figure 3 is a cross-sectional view taken along line B of Figure 1;
- 4-1 is an overall structural view of an elastic support member according to an embodiment of the present invention.
- 4-2 is a top plan view of an elastic support member in accordance with an embodiment of the present invention.
- 4-3 is a side view of an elastic support member in accordance with an embodiment of the present invention.
- 5-1 is a structural view of an elastic support member according to another embodiment of the present invention.
- Figure 5-2 is a structural view of an elastic support member according to still another embodiment of the present invention.
- the reference numerals include: upper case 1, elastic support member 2, first fixed end 21, second fixed end 22, connecting arm 23, connecting arm fulcrum 231, cantilever 24, first cantilever 241, first cantilever fulcrum 2411
- weights both of which refer to high quality, high density metal blocks that are fixed with vibration generating vibration blocks to enhance vibration balance.
- the invention is mainly used for the improvement of the micro vibration motor, but does not exclude the application of the technique of the invention to a large vibration motor.
- linear vibration motor and “micro vibration motor” have the same meanings.
- FIGS. 2 and 3 respectively show cross-sectional structures of a linear vibration motor according to an embodiment of the present invention from different angles.
- a linear vibration motor includes a housing and a vibration assembly housed in the housing, the vibration assembly including the mass 3 and the elastic support member 2; the elastic support member 2 is disposed at the mass Between the upper end surface of the block 3 and the inner surface of the top of the housing, the mass 3 is suspended in the housing by the elastic support 2 and provides an elastic restoring force for the movement of the mass 3.
- the elastic support member 2 of the embodiment of the present invention is provided only in one piece, and the elastic support member 2 is a sheet-like structure including a first fixed end, a second fixed end, and a connecting arm disposed between the first fixed end and the second fixed end a symmetrically distributed cantilever is disposed on both sides of the connecting arm; in the assembly process of the linear vibration motor, the first fixed end is fixed on the mass or the casing, and the second fixed end is fixed in the casing or the mass One.
- the two ends of the connecting arm are respectively connected to the first fixed end and the second fixed end; one end of the cantilever is connected to the first fixed end, and the other end of the cantilever is separated from the second fixed end; the cantilever is connected with the second fixed end One end of the separation is fixed to the housing or the mass corresponding to the second fixed end.
- 4-1, 4-2, and 4-3 illustrate the structure of the elastic support member according to an embodiment of the present invention from different angles, respectively.
- the elastic support member of the embodiment of the present invention includes a first fixed end 21, a second fixed end 22, and a connection between the first fixed end 21 and the second fixed end 22.
- the arm 23 is respectively provided with a first cantilever 241 and a second cantilever 242 which are symmetrically distributed and identical in structure on both sides of the connecting arm 23.
- the first cantilever 241 and the second cantilever 242 are collectively referred to as a cantilever 24; one end of the connecting arm 23 is provided with a connecting arm fulcrum 231 connected to the first fixed end 21, and the other end is connected to the second fixed end 22; One end of the first cantilever 241 is connected to the first fixed end 21, and the other end forms a first cantilever fulcrum 2411.
- the first cantilever fulcrum 2411 is separated from the second fixed end 22 to form a horizontal free end, and the second cantilever One end of the 242 is connected to the first fixed end 21, and the other end forms a second cantilever fulcrum 2421.
- the second cantilever fulcrum 2421 is separated from the second fixed end 22 and also forms a horizontal free end.
- the elastic support member 2 is disposed between the upper end surface of the mass 3 and the inner surface of the top of the housing, and the mass 3 is suspended in the housing by the elastic support member 2, that is, the connecting arm 23 and the boom 24 are not placed in the horizontal direction in the linear vibration motor but are inclined at an angle to connect the casing and the mass 3.
- the first fixed end 21 and the connecting arm fulcrum 231 are respectively welded and fixed on the mass/housing
- the second fixed end 22 and the first cantilever fulcrum 2411 and the first The two cantilever fulcrums 2421 are respectively welded and fixed to the casing/mass.
- the effective arm lengths of the connecting arm 23 and the cantilever are set equal. Length, where the effective arm length is used to remove the length of the fulcrum (including the first cantilever fulcrum, the second cantilever fulcrum and the connecting arm fulcrum) fixed to the mass or the housing, is only used to provide elasticity for the vibration of the mass The strength of the connecting arm 23 or the length of the cantilever.
- the connecting arm 23 and the cantilever 24 are equidistantly displaced in the horizontal direction, that is, the equidistant misalignment connecting arm 23 exists between the connecting arm fulcrum 231 and the first cantilever fulcrum 2411 and the second cantilever fulcrum 2421.
- the cantilever forms a misalignment of the parallelogram.
- the equidistant misalignment here means that the connecting arm 23 and the cantilever 24 are not completely overlapped when viewed from the side, that is, they are arranged offset from each other in the horizontal direction, so that the coaxial rotation of the fulcrum can be effectively avoided, and the connecting arm 23 and the cantilever are aligned.
- the inner space of the casing can be saved to the utmost, and the elastic support member of the invention can realize compression in an approximately flat state compared with the existing "C" shape or "V" shape elastic piece structure, thereby saving vibration space and facilitating small size of the product. Development.
- the space saved can be used to increase the vibration component or the stator assembly, thereby increasing the vibration of the linear vibration motor.
- the first fixed end 21, the second fixed end 22, the connecting arm 23 and the cantilever may be provided as an integrally formed structure, and the structure of the elastic support member Simple, it can reduce the process difficulty of the process assembly, and can be mass-produced.
- FIGS 5-1 and 5-2 illustrate an elastic support structure in accordance with two further embodiments of the present invention, respectively.
- the elastic support member 2 of the embodiment includes a first fixed end 21, a second fixed end 22, and a first cantilever 241 and a second cantilever 242 respectively connected to the first fixed end 21.
- the connecting arm 23 is connected to the first fixed end 21 and the second fixed end 22 respectively.
- One end of the connecting arm 23 is connected with the connecting arm fulcrum 231 and the first fixed end 21, and the first cantilever 241 and the second cantilever 242 are connected.
- the arms 23 are symmetrically arranged, and the effective arm lengths of the cantilever and the connecting arm 23 are equal, and the fulcrums of the cantilever and the connecting arm 23 are equidistantly dislocated, respectively.
- the first fixed end 21 is fixed on the mass/housing, and the second fixed end 22 and the free ends 2411 and 2421 of the cantilever away from the first fixed end 21 are fixed on the housing/mass.
- the embodiment of Figure 5-1 differs from the embodiment of Figure 4-2 in that in the embodiment of Figure 4-2, the second fixed end 22 is a different component than the connecting arm 23, the second fixed end 22 and the connecting arm The other end of the 23 is connected, and the second fixed end 22 is located on the side of the connecting arm 23 and the cantilever 24 to surround the connecting arm 23 and the cantilever 24.
- the other end of the connecting arm 23 is also a free end, and the free end of the connecting arm 23 is defined as a second fixed end 22.
- both ends of the first cantilever and the second cantilever can also be configured similarly to the connecting arm, that is, one end of the connecting arm is connected to the first fixed end, and the other end of the connecting arm is opposite to the second fixed end.
- the two ends of the cantilever are respectively connected to the first fixed end and the second fixed end, and one end of the connecting arm separated from the second fixed end is fixed to the housing or the mass corresponding to the second fixed end.
- the elastic support member in this embodiment includes a first fixed end 21, a second fixed end 22, and a connecting arm 23, and the first fixed end 21 and the second fixed end 22 pass through the first cantilever 241 and
- the second cantilever 242 is connected to a rectangular frame structure, and one end of the connecting arm 23, that is, the connecting arm fulcrum 231 is connected to the first fixed end 21, and the other end of the connecting arm 23 forms a free end; and the first cantilever fulcrum 2411 of the first cantilever 241
- the second cantilever fulcrum 2421 of the second cantilever 242 is symmetrically distributed with respect to the connecting arm 23, and the effective arm lengths of the cantilever and the connecting arm 23 are equal.
- the installation position of the elastic support member can be adjusted according to the product structure and requirements, and is not limited to a single assembly direction.
- the elastic support member can be along the linear vibration motor.
- the long axis direction is set, and the vibration direction of the connected mass may be the Z-axis direction of the linear vibration motor or the Y-axis direction.
- the X-axis direction refers to the long-axis direction of the linear vibration motor in the horizontal plane shown in Fig. 1
- the Y-axis direction represents the short-axis direction of the linear vibration motor in the horizontal plane
- the Z-direction represents the direction perpendicular to the horizontal plane.
- the vibration assembly further includes a magnetic circuit system embedded in the mass 3; the magnetic circuit system further includes a fixed connection with the mass 3
- the potted frame 4 and the magnet 5 accommodated in the center of the basin frame 4 (the number of magnets and the direction of magnetization thereof can be adjusted according to production requirements), and the washer fixed to the side of the magnet 5 away from the basin frame 4 6, through the Huasi 6 gather magnetic lines of force, improve the magnetic field utilization, to achieve the effect of gathering the number of magnetic lines passing through the coil 7, so that the product obtains greater magnetic flux and a stronger vibration effect.
- the linear vibration motor further includes a stator assembly housed in the housing, wherein the stator assembly includes a flexible printed circuit board (FPCB) fixed in the housing, is fixed on the flexible circuit board 8 and is coupled to the flexible circuit board. 8 is turned on the coil 7; a magnetic gap is formed between the magnet 5 and the side wall of the basin frame 4, and the coil 7 is suspended in the magnetic gap.
- FPCB flexible printed circuit board
- the mass 3 can be made of a high-density metal material such as a tungsten steel block or a nickel steel block or a nickel-tungsten alloy, and the mass 3 is enlarged.
- the vibration force makes the vibration of the electronic product more intense.
- the housing includes an upper case 1 and a lower case 9 that are adapted to be coupled, and the flexible circuit board 8 is fastened or attached to the inner side wall of the lower case.
- the upper casing 1 is an unclosed rectangular parallelepiped structure
- the lower casing 9 is fixed to the open end of the upper casing 1
- the vibrating assembly and the stator assembly are housed in the cavity formed by the upper casing 1 and the lower casing 9.
- the linear vibration motor provided by the present invention has the same effective arm lengths of the cantilever and the connecting arm of the elastic support member, and can ensure the same amount of compression and deformation of the connecting arm and the cantilever, and the connecting arm and the cantilever The distance between the arm and the pivot of the cantilever is prevented from rotating coaxially.
- the length of the connecting arm or the cantilever caused by stretching and compression during the vibration process is the same, which is lengthened or shortened.
- Increase the vibration stability of the vibration component effectively improve the polarization and deflection of the square or rectangular Z-direction or Y-direction linear vibration motor, control the polarization, reduce the friction, improve the noise, and improve the vibration experience of the linear vibration motor.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
A linear vibration motor, comprising a housing and a vibration assembly accommodated in the housing. The vibration assembly comprises a mass (3) and an elastic support member (2); the elastic support member (2) is disposed between the upper end surface of the mass (3) and the inner surface of the top of the housing, to suspend the mass (3) in the housing by means of the elastic support member (2); the elastic support member (2) is of a sheet structure, and comprises a first fixed end (21), a second fixed end (22), and a connecting arm (23) disposed between the first fixed end (21) and the second fixed end (22), and symmetrically distributed cantilevers (24) are provided at both sides of the connecting arm (23); one of the first fixed end (21) and the second fixed end (22) is fixed on the mass (3), and the other of the first fixed end (21) and the second fixed end (22) is fixed on the housing. The solution can simplify the structure of the elastic support member, and achieve stable vibration of the vibration assembly.
Description
本发明涉及消费类电子产品技术领域,更为具体地,涉及一种线性振动马达。The present invention relates to the field of consumer electronics, and more particularly to a linear vibration motor.
随着通信技术的发展,便携式电子产品,如手机、掌上游戏机或者掌上多媒体娱乐设备等进入人们的生活。在这些便携式电子产品中,一般会用微型振动马达来做系统反馈,例如手机的来电提示、游戏机的振动反馈等。然而,随着电子产品的轻薄化发展趋势,其内部的各种元器件也需适应这种趋势,微型振动马达也不例外。With the development of communication technology, portable electronic products, such as mobile phones, handheld game consoles or handheld multimedia entertainment devices, have entered people's lives. In these portable electronic products, micro-vibration motors are generally used for system feedback, such as incoming call prompts of mobile phones, vibration feedback of game machines, and the like. However, with the trend of thin and light electronic products, various internal components also need to adapt to this trend, and micro-vibration motors are no exception.
现有的微型振动马达,一般包括上盖、和与上盖形成振动空间的下盖、在振动空间内做直线往复振动的振子(包括质量块和永磁铁)、连接上盖并使振子做往复振动的弹性支撑件、以及位于振子下方一段距离的线圈。The existing micro-vibration motor generally includes an upper cover, a lower cover that forms a vibration space with the upper cover, a vibrator (including a mass and a permanent magnet) that linearly reciprocates in the vibration space, connects the upper cover, and reciprocates the vibrator A vibrating elastic support and a coil located a distance below the vibrator.
目前,弹性支撑件常见的有弹片或弹簧,不同外形与不同性能的振动马达,对弹片或弹簧的外形与尺寸的设计也是各不相同。在现有技术中,方形或者长方形马达通常是以最大面振动,振子支点间距大,弹片设计尤为重要,单弹片或者双弹片结构,振动方向以外的维度上的弹片刚性差,单支点容易出现三维度偏转,双支点则容易出现二维度绕轴转动。At present, the elastic support members are commonly used with springs or springs, vibration motors of different shapes and different performances, and the design of the shape and size of the springs or springs are also different. In the prior art, the square or rectangular motor usually has the largest surface vibration, and the fulcrum pitch is large, and the elastic piece design is particularly important. The single elastic piece or the double elastic piece structure has the rigidity of the elastic piece in the dimension other than the vibration direction, and the single support point is easy to appear three. Dimension deflection, double fulcrum is prone to two-dimensional rotation around the axis.
可知,目前方形或者长方形Z/Y向的线性马达,由于弹性支撑件的结构不够合理,存在严重的一阶固有频率偏振问题,振动稳定性差,容易出现振动偏转,导致碰撞噪音。It can be seen that the current linear or rectangular Z/Y linear motor has a serious first-order natural frequency polarization problem due to the unreasonable structure of the elastic support member, and the vibration stability is poor, and the vibration deflection is prone to occur, resulting in collision noise.
发明内容Summary of the invention
鉴于上述问题,本发明的目的是提供一种线性振动马达,以解决现有技术中的线性振动马达的严重的一阶固有频率偏振问题,振动稳定性差,容易出现振动偏转,导致碰撞噪音的问题。In view of the above problems, an object of the present invention is to provide a linear vibration motor to solve the severe first-order natural frequency polarization problem of the linear vibration motor in the prior art, which has poor vibration stability, is prone to vibration deflection, and causes collision noise. .
本发明提供的线性振动马达,包括壳体以及收容在壳体内的振动组件;
振动组件包括质量块和弹性支撑件;弹性支撑件设置在质量块上端面与壳体的顶部的内表面之间,以通过弹性支撑件将质量块悬设在壳体内;弹性支撑件为片状结构,包括第一固定端、第二固定端和设置在第一固定端和第二固定端之间的连接臂,在连接臂的两侧设置有对称分布的悬臂;第一固定端和第二固定端之一固定在质量块上,第一固定端和第二固定端的另一个固定在壳体上。The linear vibration motor provided by the present invention comprises a housing and a vibration component housed in the housing;
The vibration assembly includes a mass and an elastic support; the elastic support is disposed between the upper end surface of the mass and the inner surface of the top of the housing to suspend the mass in the housing through the elastic support; the elastic support is a sheet The structure includes a first fixed end, a second fixed end, and a connecting arm disposed between the first fixed end and the second fixed end, and symmetrically distributed cantilevers are disposed on both sides of the connecting arm; the first fixed end and the second One of the fixed ends is fixed to the mass, and the other of the first fixed end and the second fixed end is fixed to the housing.
此外,优选的方案是,连接臂的两端分别与第一固定端和第二固定端连接;悬臂的一端与第一固定端连接,悬臂的另一端与第二固定端相分离;悬臂与第二固定端相分离的一端与第二固定端相对应地固定在壳体或质量块上。In addition, a preferred solution is that the two ends of the connecting arm are respectively connected with the first fixed end and the second fixed end; one end of the cantilever is connected with the first fixed end, and the other end of the cantilever is separated from the second fixed end; One end of the two fixed end phases is fixed to the casing or the mass corresponding to the second fixed end.
此外,优选的方案是,连接臂的一端与所述第一固定端连接,连接臂的另一端与所述第二固定端相分离;悬臂的两端分别与第一固定端和第二固定端连接,连接臂与第二固定端相分离的一端与第二固定端相对应地固定在壳体或质量块上。In addition, a preferred solution is that one end of the connecting arm is connected to the first fixed end, and the other end of the connecting arm is separated from the second fixed end; two ends of the cantilever are respectively respectively connected to the first fixed end and the second fixed end The connecting end of the connecting arm and the second fixed end is fixed to the housing or the mass corresponding to the second fixed end.
此外,优选的方案是,第一固定端、第二固定端、连接臂和悬臂为一体成型结构。Further, it is preferable that the first fixed end, the second fixed end, the connecting arm, and the cantilever are integrally formed.
此外,优选的方案是,从侧面看,所述连接臂和所述悬臂相互错开设置;并且所述连接臂和所述悬臂的有效臂长相等,以使得在质量块的运动过程中,连接臂与悬臂的压缩量和形变量相同。Further, it is preferable that the connecting arm and the cantilever are disposed offset from each other when viewed from the side; and the effective arms of the connecting arm and the cantilever are equal in length so that the connecting arm during the movement of the mass The same amount of compression and deformation as the cantilever.
此外,优选的方案是,从侧面看,连接臂和悬臂形成平行四边形。Further, it is preferable that the connecting arm and the cantilever form a parallelogram as viewed from the side.
此外,优选的方案是,振动组件还包括固定在质量块内的磁路系统;磁路系统包括与质量块固定连接的盆架、收容在盆架内的磁铁、以及固定在磁铁远离盆架一侧的华司。In addition, it is preferable that the vibration component further includes a magnetic circuit system fixed in the mass; the magnetic circuit system includes a basin frame fixedly connected to the mass, a magnet housed in the basin frame, and a magnet fixed away from the basin frame. The side of the Huashi.
此外,优选的方案是,还包括收容在壳体内的定子组件;其中,定子组件包括固定在壳体内的柔性电路板、固定在柔性电路板上的线圈;磁铁与盆架的侧壁之间形成磁间隙,线圈悬设在磁间隙内。In addition, a preferred solution further includes a stator assembly housed in the housing; wherein the stator assembly includes a flexible circuit board fixed in the housing, a coil fixed on the flexible circuit board; and a magnet formed between the sidewall of the basin frame The magnetic gap, the coil is suspended in the magnetic gap.
此外,优选的方案是,壳体包括适配连接的上壳和下壳,柔性电路板扣合或者粘贴固定在下壳的内侧壁上。In addition, it is preferable that the housing includes an upper case and a lower case that are adapted to be connected, and the flexible circuit board is fastened or adhered to the inner side wall of the lower case.
此外,优选的方案是,质量块为钨钢块、镍钢块或者钨镍合金块。Furthermore, it is preferred that the mass is a tungsten steel block, a nickel steel block or a tungsten-nickel alloy block.
利用上述线性振动马达,可平衡三维度刚度差,使除振动方向外的两个
维度的刚度远大于振动维度上的刚度,可实现振动组件的平稳振动,能够有效规避支点同轴发生转动,改善方形或者长方形Z向或者Y向线性振动马达的偏振、偏转问题,降低擦碰、改善噪音;此外,组装方便,节省振动空间,能够提高线性振动马达的振感体验。By using the above linear vibration motor, the three-dimensional stiffness difference can be balanced, so that two vibration directions are removed.
The stiffness of the dimension is much larger than the stiffness in the vibration dimension, which can achieve the smooth vibration of the vibrating component, can effectively avoid the rotation of the fulcrum coaxially, improve the polarization and deflection of the square or rectangular Z-direction or Y-direction linear vibration motor, and reduce the rubbing, Improve noise; in addition, it is easy to assemble, saves vibration space, and improves the vibration experience of linear vibration motors.
为了实现上述以及相关目的,本发明的一个或多个方面包括后面将详细说明的特征。下面的说明以及附图详细说明了本发明的某些示例性方面。然而,这些方面指示的仅仅是可使用本发明的原理的各种方式中的一些方式。此外,本发明旨在包括所有这些方面以及它们的等同物。To achieve the above and related ends, one or more aspects of the present invention include features that will be described in detail below. The following description and the annexed drawings set forth in detail However, these aspects are indicative of only some of the various ways in which the principles of the invention may be employed. Furthermore, the invention is intended to cover all such aspects and their equivalents.
通过参考以下结合附图的说明,并且随着对本发明的更全面理解,本发明的其它目的及结果将更加明白及易于理解。在附图中:Other objects and results of the present invention will become more apparent and appreciated from the description of the appended claims. In the drawing:
图1为根据本发明实施例的线性振动马达的分解图;1 is an exploded view of a linear vibration motor in accordance with an embodiment of the present invention;
图2为沿图1的A面的剖面图;Figure 2 is a cross-sectional view taken along line A of Figure 1;
图3为沿图1的B面的剖面图;Figure 3 is a cross-sectional view taken along line B of Figure 1;
图4-1为根据本发明实施例的弹性支撑件的整体结构图;4-1 is an overall structural view of an elastic support member according to an embodiment of the present invention;
图4-2为根据本发明实施例的弹性支撑件的俯视图;4-2 is a top plan view of an elastic support member in accordance with an embodiment of the present invention;
图4-3为根据本发明实施例的弹性支撑件的侧视图;4-3 is a side view of an elastic support member in accordance with an embodiment of the present invention;
图5-1为根据本发明另一实施例的弹性支撑件结构图;5-1 is a structural view of an elastic support member according to another embodiment of the present invention;
图5-2为根据本发明再一实施例的弹性支撑件结构图。Figure 5-2 is a structural view of an elastic support member according to still another embodiment of the present invention.
其中的附图标记包括:上壳1、弹性支撑件2、第一固定端21、第二固定端22、连接臂23、连接臂支点231、悬臂24、第一悬臂241、第一悬臂支点2411、第二悬臂242、第二悬臂支点2421、质量块3、盆架4、磁铁5、华司6、线圈7、柔性电路板8、下壳9。The reference numerals include: upper case 1, elastic support member 2, first fixed end 21, second fixed end 22, connecting arm 23, connecting arm fulcrum 231, cantilever 24, first cantilever 241, first cantilever fulcrum 2411 The second cantilever 242, the second cantilever fulcrum 2421, the mass 3, the basin frame 4, the magnet 5, the washer 6, the coil 7, the flexible circuit board 8, and the lower casing 9.
在所有附图中相同的标号指示相似或相应的特征或功能。The same reference numerals are used throughout the drawings to refer to the
在下面的描述中,出于说明的目的,为了提供对一个或多个实施例的全面理解,阐述了许多具体细节。然而,很明显,也可以在没有这些具体细节
的情况下实现这些实施例。在其它例子中,为了便于描述一个或多个实施例,公知的结构和设备以方框图的形式示出。In the following description, for the purposes of illustration However, it is obvious that there is no such specific detail.
These embodiments are implemented in the case. In other instances, well known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
在下述具体实施方式的描述中所用到的“质量块”也可以称作“配重块”,均指与产生振动的振动块固定以加强振动平衡的高质量、高密度金属块。另外,发明主要用于微型振动马达的改进,但是也不排除将发明中的技术应用于大型振动马达。但是为了表述的方便,在以下的实施例描述中,“线性振动马达”和“微型振动马达”表示的含义相同。The "mass" used in the description of the following detailed description may also be referred to as "weights", both of which refer to high quality, high density metal blocks that are fixed with vibration generating vibration blocks to enhance vibration balance. In addition, the invention is mainly used for the improvement of the micro vibration motor, but does not exclude the application of the technique of the invention to a large vibration motor. However, for convenience of description, in the following description of the embodiments, "linear vibration motor" and "micro vibration motor" have the same meanings.
为详细描述本发明实施例的线性振动马达结构,以下将结合附图对本发明的具体实施例进行详细描述。For a detailed description of the linear vibration motor structure of the embodiment of the present invention, a specific embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
图1示出了根据本发明实施例的线性振动马达的分解结构;图2和图3分别从不同角度示出了根据本发明实施例的线性振动马达的剖面结构。1 shows an exploded structure of a linear vibration motor according to an embodiment of the present invention; FIGS. 2 and 3 respectively show cross-sectional structures of a linear vibration motor according to an embodiment of the present invention from different angles.
结合图1至图3共同所示,本发明实施例的线性振动马达,包括壳体以及收容在壳体内的振动组件,振动组件包括质量块3和弹性支撑件2;弹性支撑件2设置在质量块3的上端面与壳体的顶部的内表面之间,通过弹性支撑件2将质量块3悬设在壳体内,并为质量块3的运动提供弹性恢复力。本发明实施例的弹性支撑件2仅设置一个,且弹性支撑件2为片状结构,包括第一固定端、第二固定端和设置在第一固定端和第二固定端之间的连接臂,在连接臂的两侧设置有对称分布的悬臂;在线性振动马达的组装过程中,第一固定端固定在质量块或者壳体上,第二固定端则固定在壳体或者质量块的另一者上。As shown in conjunction with FIGS. 1 to 3, a linear vibration motor according to an embodiment of the present invention includes a housing and a vibration assembly housed in the housing, the vibration assembly including the mass 3 and the elastic support member 2; the elastic support member 2 is disposed at the mass Between the upper end surface of the block 3 and the inner surface of the top of the housing, the mass 3 is suspended in the housing by the elastic support 2 and provides an elastic restoring force for the movement of the mass 3. The elastic support member 2 of the embodiment of the present invention is provided only in one piece, and the elastic support member 2 is a sheet-like structure including a first fixed end, a second fixed end, and a connecting arm disposed between the first fixed end and the second fixed end a symmetrically distributed cantilever is disposed on both sides of the connecting arm; in the assembly process of the linear vibration motor, the first fixed end is fixed on the mass or the casing, and the second fixed end is fixed in the casing or the mass One.
具体地,连接臂的两端分别与第一固定端和第二固定端连接;悬臂的一端与第一固定端连接,悬臂的另一端与第二固定端相分离;悬臂与第二固定端相分离的一端与第二固定端相对应地固定在壳体或质量块上。Specifically, the two ends of the connecting arm are respectively connected to the first fixed end and the second fixed end; one end of the cantilever is connected to the first fixed end, and the other end of the cantilever is separated from the second fixed end; the cantilever is connected with the second fixed end One end of the separation is fixed to the housing or the mass corresponding to the second fixed end.
图4-1、图4-2和图4-3分别从不同角度示出了根据本发明实施例的弹性支撑件的结构。4-1, 4-2, and 4-3 illustrate the structure of the elastic support member according to an embodiment of the present invention from different angles, respectively.
结合图1至图4-3共同所示,本发明实施例的弹性支撑件,包括第一固定端21、第二固定端22、位于第一固定端21和第二固定端22之间的连接臂23,在连接臂23的两侧分别设置有对称分布且结构相同的第一悬臂241和第二悬臂242,第一悬臂241和第二悬臂242统称为悬臂24;连接臂23一端设置有与第一固定端21连接的连接臂支点231,另一端与第二固定端22连接;对应
的,第一悬臂241的一端与第一固定端21连接,另一端形成第一悬臂支点2411,该第一悬臂支点2411与第二固定端22相分离,形成水平状的自由端,第二悬臂242的一端与第一固定端21连接,另一端形成第二悬臂支点2421,该第二悬臂支点2421与第二固定端22相分离,也形成水平状的自由端。As shown in FIG. 1 to FIG. 4-3, the elastic support member of the embodiment of the present invention includes a first fixed end 21, a second fixed end 22, and a connection between the first fixed end 21 and the second fixed end 22. The arm 23 is respectively provided with a first cantilever 241 and a second cantilever 242 which are symmetrically distributed and identical in structure on both sides of the connecting arm 23. The first cantilever 241 and the second cantilever 242 are collectively referred to as a cantilever 24; one end of the connecting arm 23 is provided with a connecting arm fulcrum 231 connected to the first fixed end 21, and the other end is connected to the second fixed end 22;
One end of the first cantilever 241 is connected to the first fixed end 21, and the other end forms a first cantilever fulcrum 2411. The first cantilever fulcrum 2411 is separated from the second fixed end 22 to form a horizontal free end, and the second cantilever One end of the 242 is connected to the first fixed end 21, and the other end forms a second cantilever fulcrum 2421. The second cantilever fulcrum 2421 is separated from the second fixed end 22 and also forms a horizontal free end.
参照图2和图4-3,弹性支撑件2设置在质量块3的上端面与壳体的顶部的内表面之间,通过弹性支撑件2将质量块3悬设在壳体内,即连接臂23和悬臂24在线性振动马达中并没有沿水平方向放置而是有一定角度的倾斜,以连接壳体和质量块3。具体地,在对本实施例中的弹性支撑件进行组装时,第一固定端21以及连接臂支点231分别焊接固定在质量块/壳体上,第二固定端22以及第一悬臂支点2411和第二悬臂支点2421分别焊接固定在壳体/质量块上。Referring to Figures 2 and 4-3, the elastic support member 2 is disposed between the upper end surface of the mass 3 and the inner surface of the top of the housing, and the mass 3 is suspended in the housing by the elastic support member 2, that is, the connecting arm 23 and the boom 24 are not placed in the horizontal direction in the linear vibration motor but are inclined at an angle to connect the casing and the mass 3. Specifically, when assembling the elastic support member in the embodiment, the first fixed end 21 and the connecting arm fulcrum 231 are respectively welded and fixed on the mass/housing, the second fixed end 22 and the first cantilever fulcrum 2411 and the first The two cantilever fulcrums 2421 are respectively welded and fixed to the casing/mass.
为保证质量块运动过程中,弹性支撑件上连接臂23和悬臂24的压缩量和形变量相同,在本发明实施例的线性振动马达中,将连接臂23和悬臂的有效臂长设置为相等长度,此处的有效臂长是指除去与质量块或者壳体相固定的支点(包括第一悬臂支点、第二悬臂支点和连接臂支点)长度后,仅用于为质量块的振动提供弹性恢复力的连接臂23或者悬臂的长度。In order to ensure that the compression amount and the deformation amount of the connecting arm 23 and the cantilever 24 on the elastic supporting member are the same during the movement of the mass, in the linear vibration motor of the embodiment of the invention, the effective arm lengths of the connecting arm 23 and the cantilever are set equal. Length, where the effective arm length is used to remove the length of the fulcrum (including the first cantilever fulcrum, the second cantilever fulcrum and the connecting arm fulcrum) fixed to the mass or the housing, is only used to provide elasticity for the vibration of the mass The strength of the connecting arm 23 or the length of the cantilever.
此外,参照图4-3,连接臂23和悬臂24在水平方向上存在等距错位,即连接臂支点231和第一悬臂支点2411及第二悬臂支点2421之间存在等距错位连接臂23和悬臂形成平行四边形的错位。这里的等距错位指的是从侧面看,连接臂23和悬臂24并没有完全重合,即在水平方向上相互错开设置,从而能够有效避免支点同轴转动,且连接臂23和悬臂走向相一致,可最大限度节省壳体内部空间,相比现有的“C”形或者“V”形弹片结构,本发明的弹性支撑件可实现近似平直状态的压缩,节省振动空间,利于产品的小型化发展。此外,所节省的空间可用于增加振动组件或者定子组件,从而提高线性振动马达的振感。In addition, referring to FIG. 4-3, the connecting arm 23 and the cantilever 24 are equidistantly displaced in the horizontal direction, that is, the equidistant misalignment connecting arm 23 exists between the connecting arm fulcrum 231 and the first cantilever fulcrum 2411 and the second cantilever fulcrum 2421. The cantilever forms a misalignment of the parallelogram. The equidistant misalignment here means that the connecting arm 23 and the cantilever 24 are not completely overlapped when viewed from the side, that is, they are arranged offset from each other in the horizontal direction, so that the coaxial rotation of the fulcrum can be effectively avoided, and the connecting arm 23 and the cantilever are aligned. The inner space of the casing can be saved to the utmost, and the elastic support member of the invention can realize compression in an approximately flat state compared with the existing "C" shape or "V" shape elastic piece structure, thereby saving vibration space and facilitating small size of the product. Development. In addition, the space saved can be used to increase the vibration component or the stator assembly, thereby increasing the vibration of the linear vibration motor.
在本发明的一个具体实施方式中,为提高弹性支撑件的整体结构强度,可将第一固定端21、第二固定端22、连接臂23和悬臂设置为一体成型结构,弹性支撑件的结构简单,能够降低制程装配的工艺难度,可量产性高。In a specific embodiment of the present invention, in order to improve the overall structural strength of the elastic support member, the first fixed end 21, the second fixed end 22, the connecting arm 23 and the cantilever may be provided as an integrally formed structure, and the structure of the elastic support member Simple, it can reduce the process difficulty of the process assembly, and can be mass-produced.
图5-1和图5-2分别示出了根据本发明另外两种实施例的弹性支撑件结构。
Figures 5-1 and 5-2 illustrate an elastic support structure in accordance with two further embodiments of the present invention, respectively.
如图5-1所述,该实施例中的弹性支撑件2,包括第一固定端21、第二固定端22、分别与第一固定端21连接的第一悬臂241、第二悬臂242,两端分别与第一固定端21和第二固定端22连接的连接臂23,连接臂23的一端为连接臂支点231与第一固定端21连接,第一悬臂241和第二悬臂242关于连接臂23对称设置,且悬臂和连接臂23的有效臂长相等,悬臂和连接臂23的支点分别等距错位设置。其中,第一固定端21固定在质量块/壳体上,第二固定端22和悬臂远离第一固定端21的自由端2411和2421固定在壳体/质量块上。图5-1的实施例与图4-2的实施例的区别在于,图4-2的实施例中,第二固定端22为与连接臂23不同的部件,第二固定端22与连接臂23的另一端连接,第二固定端22位于连接臂23和悬臂24的侧面包围连接臂23和悬臂24。在图5-1的实施例中,连接臂23的另一端也是自由端,将连接臂23的自由端定义为第二固定端22。As shown in FIG. 5-1, the elastic support member 2 of the embodiment includes a first fixed end 21, a second fixed end 22, and a first cantilever 241 and a second cantilever 242 respectively connected to the first fixed end 21. The connecting arm 23 is connected to the first fixed end 21 and the second fixed end 22 respectively. One end of the connecting arm 23 is connected with the connecting arm fulcrum 231 and the first fixed end 21, and the first cantilever 241 and the second cantilever 242 are connected. The arms 23 are symmetrically arranged, and the effective arm lengths of the cantilever and the connecting arm 23 are equal, and the fulcrums of the cantilever and the connecting arm 23 are equidistantly dislocated, respectively. Wherein, the first fixed end 21 is fixed on the mass/housing, and the second fixed end 22 and the free ends 2411 and 2421 of the cantilever away from the first fixed end 21 are fixed on the housing/mass. The embodiment of Figure 5-1 differs from the embodiment of Figure 4-2 in that in the embodiment of Figure 4-2, the second fixed end 22 is a different component than the connecting arm 23, the second fixed end 22 and the connecting arm The other end of the 23 is connected, and the second fixed end 22 is located on the side of the connecting arm 23 and the cantilever 24 to surround the connecting arm 23 and the cantilever 24. In the embodiment of Figure 5-1, the other end of the connecting arm 23 is also a free end, and the free end of the connecting arm 23 is defined as a second fixed end 22.
需要说明的是,第一悬臂和第二悬臂的两端也可以设置为与连接臂相类似的结构,即连接臂的一端与第一固定端连接,连接臂的另一端与第二固定端相分离,悬臂的两端分别与第一固定端和第二固定端连接,连接臂与第二固定端相分离的一端与第二固定端相对应地固定在壳体或质量块上。It should be noted that both ends of the first cantilever and the second cantilever can also be configured similarly to the connecting arm, that is, one end of the connecting arm is connected to the first fixed end, and the other end of the connecting arm is opposite to the second fixed end. The two ends of the cantilever are respectively connected to the first fixed end and the second fixed end, and one end of the connecting arm separated from the second fixed end is fixed to the housing or the mass corresponding to the second fixed end.
如图5-2所述,该实施例中的弹性支撑件包括第一固定端21、第二固定端22和连接臂23,第一固定端21和第二固定端22通过第一悬臂241和第二悬臂242连接为矩形框架结构,连接臂23的一端即连接臂支点231与第一固定端21连接,连接臂23的另一端形成自由端;并且,第一悬臂241的第一悬臂支点2411和第二悬臂242的第二悬臂支点2421关于连接臂23呈对称分布,悬臂和连接臂23的有效臂长相等。As shown in FIG. 5-2, the elastic support member in this embodiment includes a first fixed end 21, a second fixed end 22, and a connecting arm 23, and the first fixed end 21 and the second fixed end 22 pass through the first cantilever 241 and The second cantilever 242 is connected to a rectangular frame structure, and one end of the connecting arm 23, that is, the connecting arm fulcrum 231 is connected to the first fixed end 21, and the other end of the connecting arm 23 forms a free end; and the first cantilever fulcrum 2411 of the first cantilever 241 The second cantilever fulcrum 2421 of the second cantilever 242 is symmetrically distributed with respect to the connecting arm 23, and the effective arm lengths of the cantilever and the connecting arm 23 are equal.
需要说明的是,本发明实施例提供的线性振动马达中,弹性支撑件的安装位置可以根据产品结构以及要求进行调整,并不限于单一的组装方向,例如,弹性支撑件可以沿线性振动马达的长轴方向设置,所连接的质量块的振动方向可以是线性振动马达的Z轴方向或者是Y轴方向等。在本发明中,X轴方向指的是图1所示的水平面内线性振动马达的长轴方向,Y轴方向表示水平面内线性振动马达的短轴方向,Z向表示垂直于水平面的方向。It should be noted that, in the linear vibration motor provided by the embodiment of the present invention, the installation position of the elastic support member can be adjusted according to the product structure and requirements, and is not limited to a single assembly direction. For example, the elastic support member can be along the linear vibration motor. The long axis direction is set, and the vibration direction of the connected mass may be the Z-axis direction of the linear vibration motor or the Y-axis direction. In the present invention, the X-axis direction refers to the long-axis direction of the linear vibration motor in the horizontal plane shown in Fig. 1, the Y-axis direction represents the short-axis direction of the linear vibration motor in the horizontal plane, and the Z-direction represents the direction perpendicular to the horizontal plane.
结合附图1至3共同所示,本发明实施例的线性振动马达,振动组件还包括嵌设在质量块3内的磁路系统;磁路系统进一步包括与质量块3固定连
接的盆架4、收容在盆架4中心位置的磁铁5(磁铁的设置个数及其充磁方向均可根据生产要求进行调整),以及固定在磁铁5远离盆架4一侧的华司6,通过华司6聚拢磁力线,提高磁场利用率,达到聚拢穿过线圈7的磁力线数量的效果,使产品获得更大的磁通量和更强的振感效果。As shown in conjunction with FIGS. 1 to 3, in the linear vibration motor of the embodiment of the present invention, the vibration assembly further includes a magnetic circuit system embedded in the mass 3; the magnetic circuit system further includes a fixed connection with the mass 3
The potted frame 4 and the magnet 5 accommodated in the center of the basin frame 4 (the number of magnets and the direction of magnetization thereof can be adjusted according to production requirements), and the washer fixed to the side of the magnet 5 away from the basin frame 4 6, through the Huasi 6 gather magnetic lines of force, improve the magnetic field utilization, to achieve the effect of gathering the number of magnetic lines passing through the coil 7, so that the product obtains greater magnetic flux and a stronger vibration effect.
此外,线性振动马达还包括收容在壳体内的定子组件,其中,定子组件包括固定在壳体内的柔性电路板8(FPCB,Flexible Printed Circuit Board)、固定在柔性电路板8上并与柔性电路板8导通的线圈7;磁铁5与盆架4的侧壁之间形成磁间隙,线圈7悬设在该磁间隙内。In addition, the linear vibration motor further includes a stator assembly housed in the housing, wherein the stator assembly includes a flexible printed circuit board (FPCB) fixed in the housing, is fixed on the flexible circuit board 8 and is coupled to the flexible circuit board. 8 is turned on the coil 7; a magnetic gap is formed between the magnet 5 and the side wall of the basin frame 4, and the coil 7 is suspended in the magnetic gap.
需要说明的是,为加强线性振动马达的振感及质量块3的振动平衡,质量块3可以采用钨钢块或镍钢块或者镍钨合金等高密度金属材料制成,加大质量块3振动力,使电子产品的振动更加强烈。It should be noted that in order to enhance the vibration of the linear vibration motor and the vibration balance of the mass 3, the mass 3 can be made of a high-density metal material such as a tungsten steel block or a nickel steel block or a nickel-tungsten alloy, and the mass 3 is enlarged. The vibration force makes the vibration of the electronic product more intense.
在本发明的另一具体实施方式中,壳体包括适配连接的上壳1和下壳9,柔性电路板8扣合或者粘贴固定在下壳的内侧壁上。其中,上壳1为未封闭长方体结构,下壳9固定在上壳1的开放端,振动组件和定子组件均收容在上壳1和下壳9形成的腔体内。In another embodiment of the present invention, the housing includes an upper case 1 and a lower case 9 that are adapted to be coupled, and the flexible circuit board 8 is fastened or attached to the inner side wall of the lower case. The upper casing 1 is an unclosed rectangular parallelepiped structure, the lower casing 9 is fixed to the open end of the upper casing 1, and the vibrating assembly and the stator assembly are housed in the cavity formed by the upper casing 1 and the lower casing 9.
通过上述实施方式可看出,本发明提供的线性振动马达,弹性支撑件的悬臂和连接臂的有效臂长相等,能够保证连接臂和悬臂的压缩量和形变量相同,并将连接臂和悬臂之间设置为等距错位,可有效避免连接臂或者悬臂的支点同轴转动;此外,产品振动过程中拉伸与压缩造成的连接臂或者悬臂的长度变化方向一致,同为加长或者缩短,能够增加振动组件的振动稳定性,有效改善方形或者长方形Z向或者Y向线性振动马达的偏振、偏转问题,使偏振量得以控制,降低擦碰、改善噪音,提高线性振动马达的振感体验。It can be seen from the above embodiment that the linear vibration motor provided by the present invention has the same effective arm lengths of the cantilever and the connecting arm of the elastic support member, and can ensure the same amount of compression and deformation of the connecting arm and the cantilever, and the connecting arm and the cantilever The distance between the arm and the pivot of the cantilever is prevented from rotating coaxially. In addition, the length of the connecting arm or the cantilever caused by stretching and compression during the vibration process is the same, which is lengthened or shortened. Increase the vibration stability of the vibration component, effectively improve the polarization and deflection of the square or rectangular Z-direction or Y-direction linear vibration motor, control the polarization, reduce the friction, improve the noise, and improve the vibration experience of the linear vibration motor.
如上参照附图以示例的方式描述根据本发明的振动发声装置。但是,本领域技术人员应当理解,对于上述本发明所提出的振动发声装置,还可以在不脱离本发明内容的基础上做出各种改进。因此,本发明的保护范围应当由所附的权利要求书的内容确定。
The vibration sounding device according to the present invention is described by way of example with reference to the accompanying drawings. However, it will be understood by those skilled in the art that various modifications can be made to the above-described vibrating sounding device of the present invention without departing from the scope of the present invention. Therefore, the scope of the invention should be determined by the content of the appended claims.
Claims (10)
- 一种线性振动马达,包括壳体以及收容在所述壳体内的振动组件,所述振动组件包括质量块和弹性支撑件;其特征在于,A linear vibration motor includes a housing and a vibration assembly housed in the housing, the vibration assembly including a mass and an elastic support;所述弹性支撑件设置在所述质量块上端面与所述壳体的顶部的内表面之间,以通过所述弹性支撑件将所述质量块悬设在所述壳体内;The elastic support member is disposed between an upper end surface of the mass and an inner surface of the top of the housing to suspend the mass in the housing through the elastic support;所述弹性支撑件为片状结构,包括第一固定端、第二固定端和设置在所述第一固定端和所述第二固定端之间的连接臂,在所述连接臂的两侧设置有对称分布的悬臂;The elastic support member is a sheet-like structure including a first fixed end, a second fixed end, and a connecting arm disposed between the first fixed end and the second fixed end, on both sides of the connecting arm Providing a cantilever with a symmetric distribution;所述第一固定端和所述第二固定端之一固定在所述质量块上,所述第一固定端和所述第二固定端的另一个固定在所述壳体上。One of the first fixed end and the second fixed end is fixed to the mass, and the other of the first fixed end and the second fixed end is fixed on the housing.
- 如权利要求1所述的线性振动马达,其特征在于,A linear vibration motor according to claim 1, wherein所述连接臂的两端分别与所述第一固定端和所述第二固定端连接;Two ends of the connecting arm are respectively connected to the first fixed end and the second fixed end;所述悬臂的一端与所述第一固定端连接,所述悬臂的另一端与所述第二固定端相分离;One end of the cantilever is connected to the first fixed end, and the other end of the cantilever is separated from the second fixed end;所述悬臂与所述第二固定端相分离的一端与所述第二固定端相对应地固定在所述壳体或所述质量块上。One end of the cantilever separated from the second fixed end is fixed to the housing or the mass corresponding to the second fixed end.
- 如权利要求1所述的线性振动马达,其特征在于,A linear vibration motor according to claim 1, wherein所述连接臂的一端与所述第一固定端连接,所述连接臂的另一端与所述第二固定端相分离;One end of the connecting arm is connected to the first fixed end, and the other end of the connecting arm is separated from the second fixed end;所述悬臂的两端分别与第一固定端和所述第二固定端连接,Two ends of the cantilever are respectively connected to the first fixed end and the second fixed end,所述连接臂与所述第二固定端相分离的一端与所述第二固定端相对应地固定在所述壳体或所述质量块上。An end of the connecting arm that is separated from the second fixed end is fixed to the housing or the mass corresponding to the second fixed end.
- 如权利要求1所述的线性振动马达,其特征在于,A linear vibration motor according to claim 1, wherein所述第一固定端、第二固定端、连接臂和悬臂为一体成型结构。The first fixed end, the second fixed end, the connecting arm and the cantilever are integrally formed.
- 如权利要求1所述的线性振动马达,其特征在于, A linear vibration motor according to claim 1, wherein从侧面看,所述连接臂和所述悬臂相互错开设置;并且Viewed from the side, the connecting arm and the cantilever are staggered from each other;所述连接臂和所述悬臂的有效臂长相等,以使得在所述质量块的运动过程中,所述连接臂与所述悬臂的压缩量和形变量相同。The connecting arm and the effective length of the cantilever are equal in length such that the amount of compression and deformation of the connecting arm and the cantilever are the same during movement of the mass.
- 如权利要求5所述的线性振动马达,其特征在于,A linear vibration motor according to claim 5, wherein从侧面看,所述连接臂和所述悬臂形成平行四边形。Viewed from the side, the connecting arm and the cantilever form a parallelogram.
- 如权利要求1所述的线性振动马达,其特征在于,A linear vibration motor according to claim 1, wherein所述振动组件还包括固定在质量块内的磁路系统;The vibration assembly further includes a magnetic circuit system fixed within the mass;所述磁路系统包括与质量块固定连接的盆架、收容在所述盆架内的磁铁、以及固定在所述磁铁远离所述盆架一侧的华司。The magnetic circuit system includes a basin bracket fixedly coupled to the mass, a magnet housed in the basin, and a washer fixed to a side of the magnet away from the basin.
- 如权利要求7所述的线性振动马达,其特征在于,还包括收容在所述壳体内的定子组件;其中,A linear vibration motor according to claim 7, further comprising a stator assembly housed in said housing;所述定子组件包括固定在所述壳体内的柔性电路板、固定在所述柔性电路板上的线圈;The stator assembly includes a flexible circuit board fixed in the housing, and a coil fixed on the flexible circuit board;所述磁铁与所述盆架的侧壁之间形成磁间隙,所述线圈悬设在所述磁间隙内。A magnetic gap is formed between the magnet and a sidewall of the basin, and the coil is suspended in the magnetic gap.
- 如权利要求8所述的线性振动马达,其特征在于,A linear vibration motor according to claim 8 wherein:所述壳体包括适配连接的上壳和下壳,所述柔性电路板扣合或者粘贴固定在所述下壳的内侧壁上。The housing includes an upper case and a lower case that are adapted to be coupled, and the flexible circuit board is fastened or adhered to the inner side wall of the lower case.
- 如权利要求1所述的线性振动马达,其特征在于,A linear vibration motor according to claim 1, wherein所述质量块为钨钢块、镍钢块或者钨镍合金块。 The mass is a tungsten steel block, a nickel steel block or a tungsten-nickel alloy block.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611067889.0A CN106655691B (en) | 2016-11-24 | 2016-11-24 | Linear vibration motor |
CN201611067889.0 | 2016-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018095047A1 true WO2018095047A1 (en) | 2018-05-31 |
Family
ID=58811346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2017/092492 WO2018095047A1 (en) | 2016-11-24 | 2017-07-11 | Linear vibration motor |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN106655691B (en) |
WO (1) | WO2018095047A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022135126A1 (en) * | 2020-12-24 | 2022-06-30 | 歌尔股份有限公司 | Loudspeaker module and electronic device |
WO2024168644A1 (en) * | 2023-02-16 | 2024-08-22 | 瑞声光电科技(常州)有限公司 | Flexible circuit board and multifunctional sound production device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106655691B (en) * | 2016-11-24 | 2018-03-06 | 歌尔股份有限公司 | Linear vibration motor |
CN110912369A (en) * | 2019-12-07 | 2020-03-24 | 歌尔股份有限公司 | Electronic product and electronic product assembly |
CN112600381A (en) * | 2020-12-21 | 2021-04-02 | 天津富禄通信技术有限公司 | Novel linear vibrator |
CN117411269B (en) * | 2023-12-15 | 2024-03-01 | 瑞声光电科技(常州)有限公司 | Vibration motor |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102055296A (en) * | 2009-11-02 | 2011-05-11 | 三星电机株式会社 | Spring for linear vibration motors |
KR20150016049A (en) * | 2013-08-03 | 2015-02-11 | 박준 | Linear Actuator |
KR20150102876A (en) * | 2014-03-01 | 2015-09-09 | 박준 | Linear Actuator |
CN205595986U (en) * | 2016-01-28 | 2016-09-21 | 歌尔声学股份有限公司 | Linear vibrating motor |
CN106130304A (en) * | 2016-08-22 | 2016-11-16 | 歌尔股份有限公司 | Extensional vibration motor |
CN106655691A (en) * | 2016-11-24 | 2017-05-10 | 歌尔股份有限公司 | Linear vibration motor |
-
2016
- 2016-11-24 CN CN201611067889.0A patent/CN106655691B/en active Active
-
2017
- 2017-07-11 WO PCT/CN2017/092492 patent/WO2018095047A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102055296A (en) * | 2009-11-02 | 2011-05-11 | 三星电机株式会社 | Spring for linear vibration motors |
KR20150016049A (en) * | 2013-08-03 | 2015-02-11 | 박준 | Linear Actuator |
KR20150102876A (en) * | 2014-03-01 | 2015-09-09 | 박준 | Linear Actuator |
CN205595986U (en) * | 2016-01-28 | 2016-09-21 | 歌尔声学股份有限公司 | Linear vibrating motor |
CN106130304A (en) * | 2016-08-22 | 2016-11-16 | 歌尔股份有限公司 | Extensional vibration motor |
CN106655691A (en) * | 2016-11-24 | 2017-05-10 | 歌尔股份有限公司 | Linear vibration motor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022135126A1 (en) * | 2020-12-24 | 2022-06-30 | 歌尔股份有限公司 | Loudspeaker module and electronic device |
WO2024168644A1 (en) * | 2023-02-16 | 2024-08-22 | 瑞声光电科技(常州)有限公司 | Flexible circuit board and multifunctional sound production device |
Also Published As
Publication number | Publication date |
---|---|
CN106655691B (en) | 2018-03-06 |
CN106655691A (en) | 2017-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018095047A1 (en) | Linear vibration motor | |
JP6193965B2 (en) | Micro vibration motor | |
CN110266171A (en) | Vibrating motor | |
US10008894B2 (en) | Double resonance vibration motor | |
CN204886637U (en) | Oscillating motor | |
WO2019165694A1 (en) | Moving-magnetic type linear vibration motor | |
US10158278B2 (en) | Vibration motor | |
CN207603420U (en) | Linear vibration electric motor | |
WO2019165693A1 (en) | Moving-coil linear vibrating motor | |
JP6010080B2 (en) | Linear vibration motor | |
CN105207440A (en) | Magnetic balance guiding linear vibration motor | |
WO2018107737A1 (en) | Linear vibration motor | |
CN209389906U (en) | Linear vibration electric motor | |
US10637339B2 (en) | Linear vibration motor | |
CN205583981U (en) | Linear vibrating motor | |
CN105245080A (en) | Vibration motor | |
WO2022267307A1 (en) | Linear vibration motor | |
CN105871167A (en) | Linear vibration motor | |
KR101434554B1 (en) | Horizontal type linear shock motor for mobile phone | |
WO2019029050A1 (en) | Linear vibration motor | |
US10110107B2 (en) | Linear vibration motor | |
CN205792148U (en) | A kind of linear vibration motor | |
CN204967588U (en) | Linear vibrating motor | |
CN107181383B (en) | Vibration exciter | |
US20180026508A1 (en) | Linear motor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17874543 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 17874543 Country of ref document: EP Kind code of ref document: A1 |