Spring piece linear horizontal vibration motor
阅读说明：本技术 一种弹簧片线性水平振动马达 (Spring piece linear horizontal vibration motor ) 是由 聂鹏举 刘辉 黎平 伍毅 罗铁志 朱勇民 于 2020-09-01 设计创作，主要内容包括：本发明公开了一种弹簧片线性水平振动马达,包括机壳,以及安装于机壳内的动子组件以及定子组件,动子组件包括钨块(6)、永磁体(5)、弹簧片(3)、止动块(4)、轭铁(2)；定子组件包括F-PCB(8)、线圈(7)、支架(9),线圈(7)和F-PCB(8)固定连接在线性马达的支架(9)上；钨块(6)和永磁体(5)固定连接在一起,线圈(7)位于永磁体(5)的磁场范围内。本发明采用新的弹簧片结构,对于线性马达机壳Y方向较宽的马达,Z方向不易产生形变,通过止动块的设置,降低弹片可靠性试验时断裂的风险,提高马达运行寿命。(The invention discloses a spring piece linear horizontal vibration motor, which comprises a shell, a rotor assembly and a stator assembly, wherein the rotor assembly and the stator assembly are arranged in the shell, and the rotor assembly comprises a tungsten block (6), a permanent magnet (5), a spring piece (3), a stop block (4) and a yoke (2); the stator component comprises an F-PCB (8), a coil (7) and a bracket (9), wherein the coil (7) and the F-PCB (8) are fixedly connected to the bracket (9) of the linear motor; the tungsten block (6) and the permanent magnet (5) are fixedly connected together, and the coil (7) is positioned in the magnetic field range of the permanent magnet (5). The invention adopts a new spring piece structure, and the motor with a wider linear motor shell in the Y direction is not easy to deform in the Z direction, and the risk of fracture of the spring piece in the reliability test is reduced and the service life of the motor is prolonged by arranging the stop block.)
1. The utility model provides a linear horizontal vibration motor of spring leaf which characterized in that: the stator comprises a casing, a rotor assembly and a stator assembly, wherein the rotor assembly and the stator assembly are installed in the casing, and the rotor assembly comprises a tungsten block (6), a permanent magnet (5), a spring piece (3), a stop block (4) and a yoke (2);
the stator component comprises an F-PCB (8), a coil (7) and a bracket (9), wherein the coil (7) and the F-PCB (8) are fixedly connected to the bracket (9) of the linear motor; the tungsten block (6) is fixedly connected with the permanent magnet (5), and the coil (7) is positioned in the magnetic field range of the permanent magnet (5);
one end of the spring piece (3) is fixed in contact with the tungsten block, two bending parts (33) are arranged on the spring piece (3), the two bending parts (33) are mutually closed, the outer side end of each bending part (33) is fixed in contact with the inner wall surface of the shell, and the spring piece (3) is supported on two sides of the tungsten block (6).
2. The spring plate linear horizontal vibration motor of claim 1, wherein: at least three stop blocks (4) are mounted on each spring piece (3), a first mounting position (31) is formed at one end, in contact with a tungsten block, of each spring piece (3), a second mounting position (32) is formed on one surface, opposite to the tungsten block, of each bending portion (33), and the stop blocks (4) are mounted on the first mounting position and the second mounting position respectively.
3. The spring plate linear horizontal vibration motor of claim 1, wherein: the spring pieces (3) are all in a C shape.
4. The spring plate linear horizontal vibration motor of claim 1, wherein: the permanent magnets (5) are arranged in a Halbach array mode.
5. The spring plate linear horizontal vibration motor of claim 1, wherein: the tungsten block (6) is provided with an installation slot used for installing the permanent magnet, and the permanent magnet (5) is installed in the installation slot of the tungsten block (6).
Technical Field
The invention relates to the technical field of motors, in particular to a spring piece linear horizontal vibration motor.
Background
The spring piece linear motor is used as a miniature linear motor, is mainly applied to products such as mobile phones, tablet computers, game handles, medical instruments and VR (virtual reality) and provides a tactile feedback effect.
After the coil is electrified, ampere force is generated between the coil and the permanent magnet, and the coil is fixedly connected to the support, so that the permanent magnet drives the tungsten block to regularly vibrate in simple harmonic mode, and the tungsten block generates different accelerated speeds in the displacement process, so that the motor generates vibration.
Therefore, the linear vibration motor realizes simple harmonic vibration through the spring plate or the elastic element such as the spring, and the design of the spring plate is very important.
Disclosure of Invention
The invention aims to solve the technical problems of a spring piece linear horizontal vibration motor, and provides a new technical scheme of the linear vibration motor, so as to at least solve the problems of nonlinearity of the spring piece elasticity coefficient K value, low second-order frequency in modal analysis, deformation in the Z direction and the like.
The invention is realized by the following technical scheme: the utility model provides a linear horizontal vibration motor of spring leaf which characterized in that: the stator assembly comprises a shell, a rotor assembly and a stator assembly, wherein the rotor assembly and the stator assembly are arranged in the shell;
the stator component comprises an F-PCB, a coil and a bracket, wherein the coil and the F-PCB are fixedly connected to the bracket of the linear motor; the tungsten block is fixedly connected with the permanent magnet, and the coil is positioned in the magnetic field range of the permanent magnet;
one end of the spring piece is fixedly contacted with the tungsten block, two bending parts are arranged on the spring piece, the two bending parts are mutually closed, the outer side end of each bending part is fixedly contacted with the inner wall surface of the shell, and the spring piece is supported on two sides of the tungsten block.
As a preferred technical scheme, at least three stop blocks are arranged on each spring piece, a first installation position is formed at one end, in contact with the tungsten block, of each spring piece, a second installation position is formed at one side, opposite to the tungsten block, of each bending part, and the stop blocks are arranged on the first installation position and the second installation position respectively.
As a preferable technical scheme, the spring pieces are all in a C shape.
As a preferred technical scheme, the permanent magnets are arranged in a halbach array mode.
According to a preferable technical scheme, the tungsten block is provided with an installation slot used for installing the permanent magnet, and the permanent magnet is installed in the installation slot of the tungsten block.
The invention has the beneficial effects that: the invention adopts a new spring piece structure, and the motor with a wider linear motor shell in the Y direction is not easy to deform in the Z direction, and the risk of fracture of the spring piece in the reliability test is reduced and the service life of the motor is prolonged by arranging the stop block.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an exploded view of the present invention;
FIG. 2 is an internal cross-sectional view of the present invention;
FIG. 3 is a schematic view of the spring plate of the present invention;
FIG. 4 is a schematic view of the assembly of the tungsten block and the spring plate of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, 2 and 4, the spring plate linear horizontal vibration motor of the present invention comprises a casing, a mover assembly and a stator assembly, wherein the mover assembly and the stator assembly are installed in the casing, and the mover assembly comprises a
the stator assembly comprises an F-PCB8, a coil 7 and a bracket 9, wherein the coil 7 and the F-PCB8 are fixedly connected to the bracket 9 of the linear motor; the
in this embodiment, one end of the
As shown in fig. 2 and 3, at least three
In the present embodiment, the
The
In this embodiment, the
The invention adopts a new spring piece structure, and the motor with a wider linear motor shell in the Y direction is not easy to deform in the Z direction, and the risk of fracture of the spring piece in the reliability test is reduced and the service life of the motor is prolonged by arranging the stop block.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.