WO2021128788A1 - Vibration device and electronic product - Google Patents

Vibration device and electronic product Download PDF

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Publication number
WO2021128788A1
WO2021128788A1 PCT/CN2020/099545 CN2020099545W WO2021128788A1 WO 2021128788 A1 WO2021128788 A1 WO 2021128788A1 CN 2020099545 W CN2020099545 W CN 2020099545W WO 2021128788 A1 WO2021128788 A1 WO 2021128788A1
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WO
WIPO (PCT)
Prior art keywords
coil
vibration device
assembly
vibration
vibrator assembly
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PCT/CN2020/099545
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French (fr)
Chinese (zh)
Inventor
史德璋
毛东升
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歌尔股份有限公司
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Publication of WO2021128788A1 publication Critical patent/WO2021128788A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems

Definitions

  • the present invention relates to the technical field of electronic products, in particular to a vibration device and an electronic product.
  • Vibration devices usually achieve reciprocating and regular vibration through vibration components.
  • the vibration experience is not only reflected in the natural frequency and vibration acceleration, but also in its response speed (that is, the time for the product's vibration frequency to rise and fall).
  • the performance parameters of the response speed of the vibration device are affected by the damping of the designed product. For example, due to the inherent simple harmonic vibration characteristics of a linear vibration motor, its own internal damping is insufficient to meet the requirements of the take-off and landing time, so external damping is needed to make the start and stop time shorter, so that the vibration can reach a steady state displacement. Controlled and more reliable.
  • the damping of the existing vibration device is generally foam, silica gel, magnetic fluid, etc.
  • This type of damping has the defects of nonlinearity, poor damping controllability, easy fatigue damage, poor durability, large damping sound, and difficulty in assembly.
  • the stability of magnetic fluid is poor in an environment with alternating high and low temperatures, and the foam cells of silica gel or foam are prone to irreversible deformation in a high temperature environment. Therefore, the damping of the existing vibration device is greatly affected by the product assembly accuracy, the product performance consistency is relatively poor, and the stability of the damping characteristic is poor in an alternating high and low temperature environment, which easily leads to a reduction in the reliability of the product.
  • An object of the present invention is to provide a new technical solution for a vibration device and an electronic product.
  • a vibration device including:
  • a housing the housing having a cavity
  • a vibrator assembly the vibrator assembly is arranged in a cavity, and the vibrator assembly includes a permanent magnet;
  • stator assembly the stator assembly is arranged in a cavity, and the stator assembly includes a coil assembly
  • the coil assembly includes at least one coil and at least one ring frame, the ring frame is sleeved outside the coil, and the permanent magnet and the coil cause the vibrator assembly to reciprocate through electromagnetic action; the ring frame is made of Conductive and non-magnetically conductive material, the ring frame is configured to obstruct the vibration of the vibrator assembly.
  • the middle of the coil has a through hole
  • the coil assembly further includes a core
  • the core is embedded in the through hole of the coil
  • the material of the core is conductive and non-magnetic, so The core is configured to hinder the vibration of the vibrator assembly.
  • the conductive and non-magnetic conductive material includes one of copper, aluminum, and nickel-chromium alloy.
  • the vibrator assembly further includes a counterweight, and the counterweight is connected to the permanent magnet.
  • a accommodating cavity is provided on the counterweight, and the permanent magnet is arranged in the accommodating cavity.
  • two elastic elements are provided, and the two elastic elements are respectively located on both sides of the counterweight along the vibration direction of the vibrator assembly.
  • the elastic element is a V-shaped elastic sheet.
  • the vibration device further includes a magnetic conductive plate, and the magnetic conductive plate is connected to the permanent magnet.
  • the vibration device further includes an FPC, and the FPC is connected to the coil assembly.
  • an electronic product including the above-mentioned vibration device.
  • the ring frame and the coil are fixed as a part of the stator assembly, which is equivalent to making the ring frame relative to the vibrator assembly. Reverse movement, so the ring frame can generate motional electromotive force under the moving magnetic field, thereby generating induced current, which can react to the vibrator assembly, thereby generating a damping effect on the vibrator assembly, so that the start-up and braking time of the vibrating device is short, Reduce the noise of the vibration device.
  • the ring frame made of conductive and non-magnetic material used in the embodiment of the present invention has the advantage of strong performance stability in an alternating high and low temperature environment, and greatly Improve the consistency of product performance.
  • Fig. 1 is a schematic diagram of an exploded structure of a vibration device provided by the present invention
  • FIG. 2 is a schematic cross-sectional structure diagram of a vibration device provided by the present invention.
  • FIG. 3 is a schematic diagram of a part of the structure of a vibration device provided by the present invention.
  • Fig. 4 is a partial structural diagram 1 of a vibrating device corresponding to two coils
  • FIG. 5 is a second schematic diagram of a part of the structure of a vibration device corresponding to two coils
  • Fig. 6 is a schematic diagram of permanent magnets and coils corresponding to two coils.
  • the vibration device includes a housing, and the housing has a cavity; the vibration device also includes a vibrator assembly, a stator assembly, and an elastic element, The vibrator assembly is arranged in a cavity, the vibrator assembly includes a permanent magnet 1; the stator assembly is arranged in the cavity, and the stator assembly includes a coil 2 assembly; the vibrator assembly is suspended in the cavity through the elastic element In the cavity; the coil 2 assembly includes at least one coil 2 and at least one ring frame 3, the ring frame 3 is sleeved on the outside of the coil 2, the permanent magnet 1 and the coil 2 make the vibrator assembly through electromagnetic action A reciprocating vibration is generated; the material of the ring frame 3 is a conductive and non-magnetic material, and the ring frame 3 is configured to hinder the vibration of the vibrator assembly.
  • a ring frame 3 made of conductive and non-magnetic material is sheathed outside the coil 2.
  • the coil 2 is located in the magnetic field generated by the permanent magnet 1 to cut the magnetic line of induction.
  • the permanent magnet 1 can interact to generate the Lorentz force.
  • the permanent magnet 1 is used to form a magnetic field.
  • the permanent magnet 1 can be a ferrite magnet or a neodymium iron boron magnet.
  • the shape of the permanent magnet 1 can be designed according to actual needs, as long as it is easy to process, for example, cuboid, cylinder, Prism and so on.
  • the vibrator assembly generates reciprocating motion under the action of the Lorentz force and the restoring force of the elastic element.
  • the ring frame 3 and the coil 2 are fixed as part of the stator assembly, which is equivalent to moving in the opposite direction relative to the vibrator assembly. Therefore, the ring frame 3 can generate motional electromotive force under the moving magnetic field, thereby generating an induced current. It can react on the vibrator assembly to produce a damping effect on the vibrator assembly, so that the start-up and braking time of the vibrating device is short, and the noise of the vibrating device is reduced.
  • the ring frame 3 made of conductive and non-magnetic materials used in the embodiment of the present invention has the advantage of strong performance stability in an alternating high and low temperature environment. Greatly improve the consistency of product performance.
  • the coil 2 bracket can also play a role of limiting and protecting the coil 2.
  • the middle of the coil 2 has a through hole, the coil 2 is wound by a wire in one direction to form a closed ring structure, and the middle of the through hole is surrounded by a coil
  • the wiring area of 2 refers to the area through which the leads in the coil 2 actually pass, and the entire wiring area is ring-shaped.
  • the coil 2 assembly further includes a core 4 embedded in the through hole of the coil 2.
  • the core 4 is made of conductive and non-magnetic material, and the core 4 is configured to obstruct The vibration of the vibrator assembly.
  • the core 4 made of conductive and non-magnetic material can play the same role as the ring frame 3.
  • the core 4 can strengthen the induction effect of the motional electromotive force, thereby increasing the reaction force to the permanent magnet 1, thereby enhancing the The damping effect of the vibrator assembly.
  • ring frame 3 and the core 4 in the embodiment of the present invention are also applicable to the solution of multiple driving coils.
  • a ring frame 3 can be sleeved on the outside of the coil 2 and the coil 2', and the through holes of the coil 2 and the coil 2' A core 4 is embedded in each; as shown in FIG. 5, a ring frame 3 can also be provided.
  • the ring frame 3 has two ring-shaped through holes that match the coil 2 and the coil 2', the coil 2 and the coil. 2'are respectively arranged in the two annular through holes, and a core 4 is embedded in each of the through holes of the coil 2 and the coil 2'.
  • Fig. 6 in the vibrating device provided with two coils (coil 2 and coil 2'), there are three sets of permanent magnets corresponding to the two coils, which are the permanent magnets 1-1 shown in Fig. 6 respectively. Magnet 1-2 and permanent magnet 1-3.
  • the arrow direction in Fig. 6 represents the magnetizing direction of each permanent magnet.
  • the current directions of the coil 2 and the coil 2' are opposite. Therefore, as shown in Fig. 4, the current directions of the two ring frames 3 are also opposite; as shown in Fig. 5 As shown, the directions of the current around the two annular through holes of the ring frame 3 are also opposite.
  • the conductive and non-magnetic material includes one of copper, aluminum, and nickel-chromium alloy. Copper, aluminum, and nickel-chromium alloys are conductive and non-magnetic materials with low cost, which is helpful for cost control in quantitative production.
  • the materials of the ring frame 3 and the core 4 are not limited to copper, aluminum, and nickel-chromium alloys, as long as they meet the conductive and non-magnetic properties.
  • the vibrator assembly further includes a counterweight 5, and the counterweight 5 is connected to the permanent magnet 1.
  • the counterweight 5 is used to increase the inertia of the vibrator assembly to improve the vibration feeling, and the counterweight 5 is made of a magnetically permeable material.
  • the counterweight 5 is provided with a containing cavity 51, and the permanent magnet 1 is arranged in the containing cavity 51.
  • the arrangement of the accommodating cavity 51 is conducive to the miniaturization, light and thin design of the vibration device.
  • two elastic elements are provided, and the two elastic elements are respectively located on both sides of the counterweight 5 along the vibration direction of the vibrator assembly.
  • the elastic element can produce damping and buffering effects, and provide restoring force and buffering effects for the vibration of the vibrator assembly.
  • the elastic element is a V-shaped elastic piece 6, one side of the V-shaped elastic piece 6 is connected with the counterweight 5, and the other side is connected with the inner side wall of the housing.
  • the two sides of the counterweight 5 along the vibrating direction of the vibrator assembly may be designed as a wedge shape that is adapted to the shape of the V-shaped elastic piece 6. That is, the thickness of the part where the side of the weight 5 connects with the opening of the V-shaped elastic piece 6 is relatively large, and the thickness of the part where the side of the weight 5 connects with the connection part of the V-shaped elastic piece 6 is relatively thin. This design can avoid the V-shaped shrapnel 6, which makes the V-shaped shrapnel 6 extend and shrink wider.
  • the elastic element is not limited to the V-shaped elastic sheet 6, and may also be elastic sheets of other shapes and structures, and may also be elastic rubber parts, springs, and the like.
  • the vibration device further includes a magnetically conductive plate 7, and the magnetically conductive plate 7 is connected to the permanent magnet 1.
  • the magnetic conductive plate 7 is made of magnetic conductive material, such as SUS-430. The magnetic conductive plate 7 converges and concentrates the magnetic field generated by the permanent magnet 1, and corrects and gathers the magnetic induction lines emitted by the permanent magnet 1, thereby increasing the strength of the magnetic field and reducing magnetic leakage.
  • the vibration device further includes an FPC8, and the FPC8 is connected to the coil 2 assembly.
  • the FPC8 is used to conduct the coil 2 with an external circuit to transmit electrical signals.
  • the lead of the coil 2 is connected to the FPC8, and the FPC8 is connected to the main control chip.
  • the setting of FPC8 can make the signal transmission effect of the vibration device better and have a long service life.
  • the housing includes an upper housing 9 and a lower housing 10.
  • the upper housing 9 is a cylindrical structure with one end open
  • the lower housing 10 is a plate-shaped structure and is covered
  • the FPC 8 is provided on the inner surface of the lower shell 10.
  • the shell of this structure is easy to process and facilitate the installation of the stator assembly and the vibrator assembly.
  • the shape of the entire casing is a rectangular parallelepiped.
  • the shape of the casing may also be an approximate rectangular parallelepiped shape, such as an ellipse, a racetrack, and the like.
  • the material of the shell can be but not limited to metal, plastic, ceramic, etc.
  • the upper shell 9 is made of a magnetically permeable material, and selecting the upper shell 9 of a magnetically permeable material can reduce magnetic leakage.
  • An embodiment of the present invention also provides an electronic product, which includes the above-mentioned vibration device.
  • the electronic product may be, for example, a mobile phone, a game console, a notebook computer, a wearable device, a walkie-talkie and other electronic devices.
  • the vibration device can be, for example, a linear vibration motor, or an exciter used to drive the screen of the mobile phone to vibrate and produce sound.

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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

A vibration device and an electronic product. The vibration device comprises a housing, which has a cavity. The vibration device further comprises a vibrator assembly, a stator assembly, and an elastic element. The vibrator assembly is disposed in the cavity, and the vibrator assembly comprises a permanent magnet (1). The stator assembly is disposed in the cavity, and the stator assembly comprises a coil assembly. The vibrator assembly is suspended in the cavity by means of the elastic element. The coil assembly comprises at least one coil (2) and at least one annular frame (3). The annular frame (3) is sleeved on the outside of the coil (2). The permanent magnet (1) and the coil (2) cause the vibrator assembly to generate reciprocating vibration by means of electromagnetic action. The material of the annular frame (3) is a conductive and non-magnetic material. The annular frame (3) is configured to hinder the vibration of the vibrator assembly.

Description

一种振动装置及电子产品Vibration device and electronic product 技术领域Technical field
本发明涉及电子产品技术领域，具体地，涉及一种振动装置及电子产品。The present invention relates to the technical field of electronic products, in particular to a vibration device and an electronic product.
背景技术Background technique
振动装置通常通过振动组件来实现往复有规律的振动，其振动体验不仅表现在固有频率和振动加速度的大小上，而且表现在其响应速度上(即产品的振动频率上升、下降的时间)，而振动装置的响应速度的性能参数受设计产品的阻尼影响。例如，由于线性振动马达固有的简谐振动特性，其自身的内阻尼不足以满足起降时间的要求，因此需要外加阻尼才能使启动和停止时间更短，从而才能使其振动达到稳定状态的位移受控、可靠性更高。Vibration devices usually achieve reciprocating and regular vibration through vibration components. The vibration experience is not only reflected in the natural frequency and vibration acceleration, but also in its response speed (that is, the time for the product's vibration frequency to rise and fall). The performance parameters of the response speed of the vibration device are affected by the damping of the designed product. For example, due to the inherent simple harmonic vibration characteristics of a linear vibration motor, its own internal damping is insufficient to meet the requirements of the take-off and landing time, so external damping is needed to make the start and stop time shorter, so that the vibration can reach a steady state displacement. Controlled and more reliable.
现有振动装置的阻尼一般为泡棉、硅胶、磁液等。此类阻尼有非线性、阻尼大小可控性差，易疲劳破损，耐久性差，阻尼音大，组装难度大等缺陷。例如磁液在高低温交替的环境中稳定性较差，硅胶或泡棉在高温环境中发泡孔易发生不可逆的形变。因此现有振动装置的阻尼受产品组装精度的影响较大、产品性能一致性比较差，且在高低温交替的环境中阻尼特性稳定性差，从而容易导致产品的可靠性降低。The damping of the existing vibration device is generally foam, silica gel, magnetic fluid, etc. This type of damping has the defects of nonlinearity, poor damping controllability, easy fatigue damage, poor durability, large damping sound, and difficulty in assembly. For example, the stability of magnetic fluid is poor in an environment with alternating high and low temperatures, and the foam cells of silica gel or foam are prone to irreversible deformation in a high temperature environment. Therefore, the damping of the existing vibration device is greatly affected by the product assembly accuracy, the product performance consistency is relatively poor, and the stability of the damping characteristic is poor in an alternating high and low temperature environment, which easily leads to a reduction in the reliability of the product.
有鉴于此，需要提供一种新的技术方案以解决上述技术问题。In view of this, it is necessary to provide a new technical solution to solve the above technical problems.
发明内容Summary of the invention
本发明的一个目的是提供一种振动装置及电子产品的新的技术方案。An object of the present invention is to provide a new technical solution for a vibration device and an electronic product.
根据本发明的第一方面，提供了一种振动装置，包括：According to the first aspect of the present invention, there is provided a vibration device, including:
壳体，所述壳体具有腔体；A housing, the housing having a cavity;
振子组件，所述振子组件设置在腔体内，所述振子组件包括永磁体；A vibrator assembly, the vibrator assembly is arranged in a cavity, and the vibrator assembly includes a permanent magnet;
定子组件，所述定子组件设置在腔体内，所述定子组件包括线圈组件；A stator assembly, the stator assembly is arranged in a cavity, and the stator assembly includes a coil assembly;
弹性元件，所述振子组件通过所述弹性元件悬置于所述腔体中；An elastic element, the vibrator assembly is suspended in the cavity through the elastic element;
所述线圈组件包括至少一个线圈及至少一个环形架，所述环形架套设于线圈的外部，所述永磁体与线圈通过电磁作用使所述振子组件产生往复振动；所述环形架的材质为导电且非导磁材质，所述环形架被配置为阻碍所述振子组件的振动。The coil assembly includes at least one coil and at least one ring frame, the ring frame is sleeved outside the coil, and the permanent magnet and the coil cause the vibrator assembly to reciprocate through electromagnetic action; the ring frame is made of Conductive and non-magnetically conductive material, the ring frame is configured to obstruct the vibration of the vibrator assembly.
可选地，所述线圈的中部具有通孔，所述线圈组件还包括芯体，所述芯体嵌设于线圈的通孔内，所述芯体的材质为导电且非导磁材质，所述芯体被配置为阻碍所述振子组件的振动。Optionally, the middle of the coil has a through hole, the coil assembly further includes a core, the core is embedded in the through hole of the coil, the material of the core is conductive and non-magnetic, so The core is configured to hinder the vibration of the vibrator assembly.
可选地，所述导电且非导磁材质包括铜、铝、镍铬合金中的一种。Optionally, the conductive and non-magnetic conductive material includes one of copper, aluminum, and nickel-chromium alloy.
可选地，所述振子组件还包括配重块，所述配重块与所述永磁体连接。Optionally, the vibrator assembly further includes a counterweight, and the counterweight is connected to the permanent magnet.
可选地，所述配重块上设置有容纳腔，所述永磁体设置于容纳腔内。Optionally, a accommodating cavity is provided on the counterweight, and the permanent magnet is arranged in the accommodating cavity.
可选地，所述弹性元件设置两个，两个所述弹性元件分别位于配重块沿振子组件振动方向的两侧。Optionally, two elastic elements are provided, and the two elastic elements are respectively located on both sides of the counterweight along the vibration direction of the vibrator assembly.
可选地，所述弹性元件为V型弹片。Optionally, the elastic element is a V-shaped elastic sheet.
可选地，所述振动装置还包括导磁板，所述导磁板与所述永磁体连接。Optionally, the vibration device further includes a magnetic conductive plate, and the magnetic conductive plate is connected to the permanent magnet.
可选地，所述振动装置还包括FPC，所述FPC与线圈组件连接。Optionally, the vibration device further includes an FPC, and the FPC is connected to the coil assembly.
根据本发明的另一方面，提供了一种电子产品，其包括如上所述的振动装置。According to another aspect of the present invention, there is provided an electronic product including the above-mentioned vibration device.
本发明实施例提供的振动装置，由于在线圈的外部套设一个由导电且非导磁材质构成的环形架，环形架与线圈作为定子组件的一部分固定不动，也就相当于相对振子组件做反向运动，因此环形架在运动的磁场下可产生动生电动势，从而产生感应电流，该感应电流可反作用于振子组件，从而 对振子组件产生阻尼效果，使得该振动装置的启动刹车时间短，降低了振动装置的噪音。并且相比传统的泡棉、硅胶、磁液等阻尼件，本发明实施例所采用的由导电且非导磁材质构成的环形架具有在高低温交替的环境下性能稳定性强的优点，大大提高了产品的性能一致性。In the vibrating device provided by the embodiment of the present invention, because a ring frame made of conductive and non-magnetic material is sheathed outside the coil, the ring frame and the coil are fixed as a part of the stator assembly, which is equivalent to making the ring frame relative to the vibrator assembly. Reverse movement, so the ring frame can generate motional electromotive force under the moving magnetic field, thereby generating induced current, which can react to the vibrator assembly, thereby generating a damping effect on the vibrator assembly, so that the start-up and braking time of the vibrating device is short, Reduce the noise of the vibration device. And compared to traditional damping parts such as foam, silica gel, magnetic fluid, etc., the ring frame made of conductive and non-magnetic material used in the embodiment of the present invention has the advantage of strong performance stability in an alternating high and low temperature environment, and greatly Improve the consistency of product performance.
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。Through the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings, other features and advantages of the present invention will become clear.
附图说明Description of the drawings
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例，并且连同其说明一起用于解释本发明的原理。The drawings incorporated in the specification and constituting a part of the specification illustrate the embodiments of the present invention, and together with the description are used to explain the principle of the present invention.
图1为本发明提供的一种振动装置的分解结构示意图；Fig. 1 is a schematic diagram of an exploded structure of a vibration device provided by the present invention;
图2为本发明提供的一种振动装置的剖视结构示意图；2 is a schematic cross-sectional structure diagram of a vibration device provided by the present invention;
图3为本发明提供的一种振动装置的部分结构示意图；FIG. 3 is a schematic diagram of a part of the structure of a vibration device provided by the present invention;
图4为设置两个线圈所对应的振动装置的部分结构示意图一；Fig. 4 is a partial structural diagram 1 of a vibrating device corresponding to two coils;
图5为设置两个线圈所对应的振动装置的部分结构示意图二；FIG. 5 is a second schematic diagram of a part of the structure of a vibration device corresponding to two coils;
图6为设置两个线圈所对应的永磁体及线圈示意图。Fig. 6 is a schematic diagram of permanent magnets and coils corresponding to two coils.
具体实施方式Detailed ways
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本发明及其应用或使用的任何限制。The following description of at least one exemplary embodiment is actually only illustrative, and in no way serves as any limitation to the present invention and its application or use.
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。The technologies, methods, and equipment known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be regarded as part of the specification.
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的 值。In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiment may have different values.
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。It should be noted that similar reference numerals and letters indicate similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.
本发明实施例提供了一种振动装置，参考图1、图2所示，所述振动装置包括壳体，所述壳体具有腔体；该振动装置还包括振子组件、定子组件及弹性元件，所述振子组件设置在腔体内，所述振子组件包括永磁体1；所述定子组件设置在腔体内，所述定子组件包括线圈2组件；所述振子组件通过所述弹性元件悬置于所述腔体中；所述线圈2组件包括至少一个线圈2及至少一个环形架3，所述环形架3套设于线圈2的外部，所述永磁体1与线圈2通过电磁作用使所述振子组件产生往复振动；所述环形架3的材质为导电且非导磁材质，所述环形架3被配置为阻碍所述振子组件的振动。The embodiment of the present invention provides a vibration device. As shown in FIG. 1 and FIG. 2, the vibration device includes a housing, and the housing has a cavity; the vibration device also includes a vibrator assembly, a stator assembly, and an elastic element, The vibrator assembly is arranged in a cavity, the vibrator assembly includes a permanent magnet 1; the stator assembly is arranged in the cavity, and the stator assembly includes a coil 2 assembly; the vibrator assembly is suspended in the cavity through the elastic element In the cavity; the coil 2 assembly includes at least one coil 2 and at least one ring frame 3, the ring frame 3 is sleeved on the outside of the coil 2, the permanent magnet 1 and the coil 2 make the vibrator assembly through electromagnetic action A reciprocating vibration is generated; the material of the ring frame 3 is a conductive and non-magnetic material, and the ring frame 3 is configured to hinder the vibration of the vibrator assembly.
在本发明实施例提供的振动装置中，在线圈2的外部套设一个由导电且非导磁材质构成的环形架3，线圈2位于永磁体1产生的磁场内，切割磁感线，当给线圈2内通入交变的电流信号时，线圈2与永磁体1之间能够相互作用，以产生洛伦兹力。其中，永磁体1用于形成磁场，永磁体1可以为铁氧体磁铁或者钕铁硼磁铁，永磁体1的形状可以根据实际需要进行设计，只要便于加工即可，例如，长方体、圆柱体、棱柱体等。振子组件在洛伦兹力以及弹性元件的回复力作用下产生往复运动。环形架3与线圈2作为定子组件的一部分固定不动，也就相当于相对振子组件做反向运动，因此环形架3在运动的磁场下可产生动生电动势，从而产生感应电流，该感应电流可反作用于振子组件，从而对振子组件产生阻尼效果，使得该振动装置的启动刹车时间短，降低了振动装置的噪音。并且相比传统的泡棉、硅胶、磁液等阻尼件，本发明实施例所采用的由导电且非导磁材质构成的环形架3具有在高低温交替的环境下性能稳定性强的优点，大大提高了 产品的性能一致性。此外，线圈2支架还可以起到对线圈2限位防护的作用。In the vibration device provided by the embodiment of the present invention, a ring frame 3 made of conductive and non-magnetic material is sheathed outside the coil 2. The coil 2 is located in the magnetic field generated by the permanent magnet 1 to cut the magnetic line of induction. When an alternating current signal is passed through the coil 2, the coil 2 and the permanent magnet 1 can interact to generate the Lorentz force. Among them, the permanent magnet 1 is used to form a magnetic field. The permanent magnet 1 can be a ferrite magnet or a neodymium iron boron magnet. The shape of the permanent magnet 1 can be designed according to actual needs, as long as it is easy to process, for example, cuboid, cylinder, Prism and so on. The vibrator assembly generates reciprocating motion under the action of the Lorentz force and the restoring force of the elastic element. The ring frame 3 and the coil 2 are fixed as part of the stator assembly, which is equivalent to moving in the opposite direction relative to the vibrator assembly. Therefore, the ring frame 3 can generate motional electromotive force under the moving magnetic field, thereby generating an induced current. It can react on the vibrator assembly to produce a damping effect on the vibrator assembly, so that the start-up and braking time of the vibrating device is short, and the noise of the vibrating device is reduced. In addition, compared to traditional damping parts such as foam, silica gel, magnetic fluid, etc., the ring frame 3 made of conductive and non-magnetic materials used in the embodiment of the present invention has the advantage of strong performance stability in an alternating high and low temperature environment. Greatly improve the consistency of product performance. In addition, the coil 2 bracket can also play a role of limiting and protecting the coil 2.
参考图1、图3所示，在一个实施例中，所述线圈2的中部具有通孔，所述线圈2由导线沿一个方向绕制呈封闭的环形结构，其中部通孔的周围为线圈2的走线区域，所述走线区域指的是线圈2中的引线实际经过的区域，整个走线区域呈环状。所述线圈2组件还包括芯体4，所述芯体4嵌设于线圈2的通孔内，所述芯体4的材质为导电且非导磁材质，所述芯体4被配置为阻碍所述振子组件的振动。Referring to Figures 1 and 3, in one embodiment, the middle of the coil 2 has a through hole, the coil 2 is wound by a wire in one direction to form a closed ring structure, and the middle of the through hole is surrounded by a coil The wiring area of 2, the wiring area refers to the area through which the leads in the coil 2 actually pass, and the entire wiring area is ring-shaped. The coil 2 assembly further includes a core 4 embedded in the through hole of the coil 2. The core 4 is made of conductive and non-magnetic material, and the core 4 is configured to obstruct The vibration of the vibrator assembly.
由导电且非导磁材质制成的芯体4能够起到与环形架3相同的作用，芯体4可以强化动生电动势的感应效果，从而增大对永磁体1的反作用力，从而增强对振子组件的阻尼效果。The core 4 made of conductive and non-magnetic material can play the same role as the ring frame 3. The core 4 can strengthen the induction effect of the motional electromotive force, thereby increasing the reaction force to the permanent magnet 1, thereby enhancing the The damping effect of the vibrator assembly.
此外，本发明实施例中的环形架3以及芯体4同样适用于多驱动线圈的方案。参考图4所示，例如在设置有线圈2及线圈2’的振动装置中，可以在线圈2及线圈2’的外部分别套设一个环形架3，并且在线圈2及线圈2’的通孔内各嵌设一个芯体4；参考图5所示，还可以是设置一个环形架3，该环形架3具有两个分别与线圈2及线圈2’相匹配的环形通孔，线圈2及线圈2’分别设置在两个所述环形通孔内，并且在线圈2及线圈2’的通孔内各嵌设一个芯体4。参考图6所示，在设置两个线圈(线圈2及线圈2’)的振动装置中，对应于两个线圈设置有三组永磁体，分别为图6中所示的永磁体1-1，永磁体1-2及永磁体1-3。图6中的箭头方向代表各个永磁体的充磁方向，线圈2及线圈2’的电流方向相反，因此，如图4所示，两个环形架3的电流方向亦为相反；如图5所示，环形架3的两个环形通孔四周的电流方向亦为相反。In addition, the ring frame 3 and the core 4 in the embodiment of the present invention are also applicable to the solution of multiple driving coils. Referring to Figure 4, for example, in a vibration device provided with a coil 2 and a coil 2', a ring frame 3 can be sleeved on the outside of the coil 2 and the coil 2', and the through holes of the coil 2 and the coil 2' A core 4 is embedded in each; as shown in FIG. 5, a ring frame 3 can also be provided. The ring frame 3 has two ring-shaped through holes that match the coil 2 and the coil 2', the coil 2 and the coil. 2'are respectively arranged in the two annular through holes, and a core 4 is embedded in each of the through holes of the coil 2 and the coil 2'. As shown in Fig. 6, in the vibrating device provided with two coils (coil 2 and coil 2'), there are three sets of permanent magnets corresponding to the two coils, which are the permanent magnets 1-1 shown in Fig. 6 respectively. Magnet 1-2 and permanent magnet 1-3. The arrow direction in Fig. 6 represents the magnetizing direction of each permanent magnet. The current directions of the coil 2 and the coil 2'are opposite. Therefore, as shown in Fig. 4, the current directions of the two ring frames 3 are also opposite; as shown in Fig. 5 As shown, the directions of the current around the two annular through holes of the ring frame 3 are also opposite.
在一个实施例中，所述导电且非导磁材质包括铜、铝、镍铬合金中的一种。铜、铝、镍铬合金这几种导电且非导磁材质造价低廉，有利于量化生产时控制成本。当然，在本发明实施例提供的振动装置中，环形架3及芯 体4的材质并不限于铜、铝、镍铬合金，只要满足导电且非导磁的性能即可。In an embodiment, the conductive and non-magnetic material includes one of copper, aluminum, and nickel-chromium alloy. Copper, aluminum, and nickel-chromium alloys are conductive and non-magnetic materials with low cost, which is helpful for cost control in quantitative production. Of course, in the vibration device provided by the embodiment of the present invention, the materials of the ring frame 3 and the core 4 are not limited to copper, aluminum, and nickel-chromium alloys, as long as they meet the conductive and non-magnetic properties.
参考图1、图2所示，在一个实施例中，所述振子组件还包括配重块5，所述配重块5与所述永磁体1连接。配重块5用于增大振子组件的惯性，以提升振感，配重块5由导磁性材料制作而成。Referring to FIGS. 1 and 2, in one embodiment, the vibrator assembly further includes a counterweight 5, and the counterweight 5 is connected to the permanent magnet 1. The counterweight 5 is used to increase the inertia of the vibrator assembly to improve the vibration feeling, and the counterweight 5 is made of a magnetically permeable material.
在一个实施例中，所述配重块5上设置有容纳腔51，所述永磁体1设置于容纳腔51内。容纳腔51的设置有利于该振动装置的小型化、轻薄化设计。In an embodiment, the counterweight 5 is provided with a containing cavity 51, and the permanent magnet 1 is arranged in the containing cavity 51. The arrangement of the accommodating cavity 51 is conducive to the miniaturization, light and thin design of the vibration device.
在一个实施例中，所述弹性元件设置两个，两个所述弹性元件分别位于配重块5沿振子组件振动方向的两侧。弹性元件能够产生阻尼、缓冲作用，为振子组件的振动提供回复力和缓冲作用。In one embodiment, two elastic elements are provided, and the two elastic elements are respectively located on both sides of the counterweight 5 along the vibration direction of the vibrator assembly. The elastic element can produce damping and buffering effects, and provide restoring force and buffering effects for the vibration of the vibrator assembly.
在一个实施例中，所述弹性元件为V型弹片6，V型弹片6的一个侧面与配重块5连接、另一个侧面与壳体的内侧壁连接。可选地，可以将所述配重块5沿振子组件振动方向的两侧设计为与V型弹片6的形状相适配的楔型。即，配重块5的侧部与V型弹片6的开口部相连的部分厚度较大，而配重块5的侧部与V型弹片6的连接部相连的部分厚度较薄。这样设计能够对V型弹片6形成避让，这使得V型弹片6的伸、缩范围更大。并且节省壳体内腔体的空间，有利于该振动装置的小型化、轻薄化设计。可以理解的是，弹性元件不局限于V型弹片6，还可以是其他形状、结构的弹片，还可以是弹性橡胶件、弹簧等。In one embodiment, the elastic element is a V-shaped elastic piece 6, one side of the V-shaped elastic piece 6 is connected with the counterweight 5, and the other side is connected with the inner side wall of the housing. Optionally, the two sides of the counterweight 5 along the vibrating direction of the vibrator assembly may be designed as a wedge shape that is adapted to the shape of the V-shaped elastic piece 6. That is, the thickness of the part where the side of the weight 5 connects with the opening of the V-shaped elastic piece 6 is relatively large, and the thickness of the part where the side of the weight 5 connects with the connection part of the V-shaped elastic piece 6 is relatively thin. This design can avoid the V-shaped shrapnel 6, which makes the V-shaped shrapnel 6 extend and shrink wider. In addition, the space in the cavity of the housing is saved, which is beneficial to the miniaturization, light and thin design of the vibration device. It can be understood that the elastic element is not limited to the V-shaped elastic sheet 6, and may also be elastic sheets of other shapes and structures, and may also be elastic rubber parts, springs, and the like.
参考图1、图2所示，在一个实施例中，所述振动装置还包括导磁板7，所述导磁板7与所述永磁体1连接。导磁板7由导磁材料制作而成，例如SUS-430。导磁板7对永磁体1产生的磁场形成收束、集中的作用，修正并聚拢永磁体1发出的磁感线，从而提高磁场强度，降低磁漏。Referring to FIGS. 1 and 2, in one embodiment, the vibration device further includes a magnetically conductive plate 7, and the magnetically conductive plate 7 is connected to the permanent magnet 1. The magnetic conductive plate 7 is made of magnetic conductive material, such as SUS-430. The magnetic conductive plate 7 converges and concentrates the magnetic field generated by the permanent magnet 1, and corrects and gathers the magnetic induction lines emitted by the permanent magnet 1, thereby increasing the strength of the magnetic field and reducing magnetic leakage.
参考图1、图2所示，在一个实施例中，所述振动装置还包括FPC8，所述FPC8与线圈2组件连接。具体地，FPC8用于线圈2与外部电路导通，以传输电信号。例如，线圈2的引线与FPC8连接，FPC8与主控芯片连接。 FPC8的设置能使该振动装置的信号传输效果更好，并且使用寿命长。Referring to Figures 1 and 2, in one embodiment, the vibration device further includes an FPC8, and the FPC8 is connected to the coil 2 assembly. Specifically, the FPC8 is used to conduct the coil 2 with an external circuit to transmit electrical signals. For example, the lead of the coil 2 is connected to the FPC8, and the FPC8 is connected to the main control chip. The setting of FPC8 can make the signal transmission effect of the vibration device better and have a long service life.
参考图1所示，在一个实施例中，壳体包括上壳9及下壳10，可选地，其中上壳9为一端开口的筒状结构，下壳10为板状结构且盖设于上壳9的开口端处，FPC8设置于下壳10的内表面处。这种结构的壳体便于加工，并且方便定子组件与振子组件的安装。整个壳体的形状为长方体状，当然，在其他实施例中，壳体的形状还可以为近似长方体的形状，例如椭圆形、跑道形等。壳体的材质可以是但不局限于金属、塑料、陶瓷等。在一个可选的实施例中，上壳9为导磁材质，选择导磁材质的上壳9能够降低磁漏。Referring to Figure 1, in one embodiment, the housing includes an upper housing 9 and a lower housing 10. Optionally, the upper housing 9 is a cylindrical structure with one end open, and the lower housing 10 is a plate-shaped structure and is covered At the open end of the upper shell 9, the FPC 8 is provided on the inner surface of the lower shell 10. The shell of this structure is easy to process and facilitate the installation of the stator assembly and the vibrator assembly. The shape of the entire casing is a rectangular parallelepiped. Of course, in other embodiments, the shape of the casing may also be an approximate rectangular parallelepiped shape, such as an ellipse, a racetrack, and the like. The material of the shell can be but not limited to metal, plastic, ceramic, etc. In an alternative embodiment, the upper shell 9 is made of a magnetically permeable material, and selecting the upper shell 9 of a magnetically permeable material can reduce magnetic leakage.
本发明实施例还提供了一种电子产品，其包括如上所述的振动装置。所述电子产品例如可以是手机、游戏机、笔记本电脑、可穿戴设备、对讲机等电子设备。而振动装置例如可以是线性振动马达，还可以是用于带动手机的屏幕振动发声的激励器。An embodiment of the present invention also provides an electronic product, which includes the above-mentioned vibration device. The electronic product may be, for example, a mobile phone, a game console, a notebook computer, a wearable device, a walkie-talkie and other electronic devices. The vibration device can be, for example, a linear vibration motor, or an exciter used to drive the screen of the mobile phone to vibrate and produce sound.
虽然已经通过例子对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the invention is defined by the appended claims.

Claims (10)

  1. 一种振动装置，其特征在于，包括：A vibration device, characterized in that it comprises:
    壳体，所述壳体具有腔体；A housing, the housing having a cavity;
    振子组件，所述振子组件设置在腔体内，所述振子组件包括永磁体；A vibrator assembly, the vibrator assembly is arranged in a cavity, and the vibrator assembly includes a permanent magnet;
    定子组件，所述定子组件设置在腔体内，所述定子组件包括线圈组件；A stator assembly, the stator assembly is arranged in a cavity, and the stator assembly includes a coil assembly;
    弹性元件，所述振子组件通过所述弹性元件悬置于所述腔体中；An elastic element, the vibrator assembly is suspended in the cavity through the elastic element;
    所述线圈组件包括至少一个线圈及至少一个环形架，所述环形架套设于线圈的外部，所述永磁体与线圈通过电磁作用使所述振子组件产生往复振动；所述环形架的材质为导电且非导磁材质，所述环形架被配置为阻碍所述振子组件的振动。The coil assembly includes at least one coil and at least one ring frame, the ring frame is sleeved outside the coil, and the permanent magnet and the coil cause the vibrator assembly to reciprocate through electromagnetic action; the ring frame is made of Conductive and non-magnetically conductive material, the ring frame is configured to obstruct the vibration of the vibrator assembly.
  2. 根据权利要求1所述的振动装置，其特征在于，所述线圈的中部具有通孔，所述线圈组件还包括芯体，所述芯体嵌设于线圈的通孔内，所述芯体的材质为导电且非导磁材质，所述芯体被配置为阻碍所述振子组件的振动。The vibration device according to claim 1, wherein the middle of the coil has a through hole, the coil assembly further comprises a core, the core is embedded in the through hole of the coil, and the core The material is conductive and non-magnetic, and the core is configured to hinder the vibration of the vibrator assembly.
  3. 根据权利要求2所述的振动装置，其特征在于，所述导电且非导磁材质包括铜、铝、镍铬合金中的一种。The vibration device according to claim 2, wherein the conductive and non-magnetic material includes one of copper, aluminum, and nickel-chromium alloy.
  4. 根据权利要求1所述的振动装置，其特征在于，所述振子组件还包括配重块，所述配重块与所述永磁体连接。The vibration device according to claim 1, wherein the vibrator assembly further comprises a counterweight, and the counterweight is connected to the permanent magnet.
  5. 根据权利要求4所述的振动装置，其特征在于，所述配重块上设置有容纳腔，所述永磁体设置于容纳腔内。The vibration device according to claim 4, wherein a containing cavity is provided on the counterweight, and the permanent magnet is arranged in the containing cavity.
  6. 根据权利要求4所述的振动装置，其特征在于，所述弹性元件设置两个，两个所述弹性元件分别位于配重块沿振子组件振动方向的两侧。The vibration device according to claim 4, wherein two elastic elements are provided, and the two elastic elements are respectively located on two sides of the counterweight along the vibration direction of the vibrator assembly.
  7. 根据权利要求6所述的振动装置，其特征在于，所述弹性元件为V型弹片。The vibration device according to claim 6, wherein the elastic element is a V-shaped elastic piece.
  8. 根据权利要求1所述的振动装置，其特征在于，所述振动装置还包 括导磁板，所述导磁板与所述永磁体连接。The vibration device according to claim 1, wherein the vibration device further comprises a magnetic conductive plate, and the magnetic conductive plate is connected to the permanent magnet.
  9. 根据权利要求1所述的振动装置，其特征在于，所述振动装置还包括FPC，所述FPC与线圈组件连接。The vibration device according to claim 1, wherein the vibration device further comprises an FPC, and the FPC is connected to the coil assembly.
  10. 一种电子产品，其特征在于，其包括如权利要求1-9中任一项所述的振动装置。An electronic product, characterized in that it comprises the vibration device according to any one of claims 1-9.
PCT/CN2020/099545 2019-12-25 2020-06-30 Vibration device and electronic product WO2021128788A1 (en)

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Publication number Priority date Publication date Assignee Title
CN111049349A (en) * 2019-12-25 2020-04-21 歌尔科技有限公司 Vibrating device and electronic product
CN111682729B (en) * 2020-06-30 2022-03-25 歌尔股份有限公司 Vibration device and electronic apparatus
CN114257037B (en) * 2020-09-21 2023-08-04 北京小米移动软件有限公司 Vibration assembly
CN112932933B (en) * 2021-01-27 2023-12-12 深圳市文森特技术有限公司 reciprocating mechanism
CN113809896A (en) * 2021-09-06 2021-12-17 汉得利（常州）电子股份有限公司 Micro tactile actuator and processing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000004569A (en) * 1998-06-12 2000-01-07 Tokin Corp Oscillating actuator
CN205490073U (en) * 2016-01-04 2016-08-17 瑞声光电科技(常州)有限公司 Vibration motor
CN207475380U (en) * 2017-11-08 2018-06-08 歌尔科技有限公司 Linear vibration motor
CN109889008A (en) * 2019-03-15 2019-06-14 金龙机电（淮北）有限公司 A kind of damping structure and its damping control mode of linear vibrator
CN111049349A (en) * 2019-12-25 2020-04-21 歌尔科技有限公司 Vibrating device and electronic product
CN211352007U (en) * 2019-12-25 2020-08-25 歌尔科技有限公司 Vibrating device and electronic product

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000004569A (en) * 1998-06-12 2000-01-07 Tokin Corp Oscillating actuator
CN205490073U (en) * 2016-01-04 2016-08-17 瑞声光电科技(常州)有限公司 Vibration motor
CN207475380U (en) * 2017-11-08 2018-06-08 歌尔科技有限公司 Linear vibration motor
CN109889008A (en) * 2019-03-15 2019-06-14 金龙机电（淮北）有限公司 A kind of damping structure and its damping control mode of linear vibrator
CN111049349A (en) * 2019-12-25 2020-04-21 歌尔科技有限公司 Vibrating device and electronic product
CN211352007U (en) * 2019-12-25 2020-08-25 歌尔科技有限公司 Vibrating device and electronic product

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