WO2017166400A1 - 振动马达以及便携式设备 - Google Patents

振动马达以及便携式设备 Download PDF

Info

Publication number
WO2017166400A1
WO2017166400A1 PCT/CN2016/082845 CN2016082845W WO2017166400A1 WO 2017166400 A1 WO2017166400 A1 WO 2017166400A1 CN 2016082845 W CN2016082845 W CN 2016082845W WO 2017166400 A1 WO2017166400 A1 WO 2017166400A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
vibration
vibration motor
support member
vibrator
Prior art date
Application number
PCT/CN2016/082845
Other languages
English (en)
French (fr)
Inventor
朱跃光
王超
Original Assignee
歌尔声学股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 歌尔声学股份有限公司 filed Critical 歌尔声学股份有限公司
Publication of WO2017166400A1 publication Critical patent/WO2017166400A1/zh
Priority to US16/145,133 priority Critical patent/US10536063B2/en

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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
    • G04C3/102—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details of the mechanical oscillator or of the coil
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
    • G04C3/107—Controlling frequency or amplitude of the oscillating system
    • 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
    • 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
    • H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations

Definitions

  • the present invention relates to the field of vibration equipment technology, and more particularly to a flat linear vibration motor and a portable device to which the vibration motor is applied.
  • a general vibration motor includes a housing composed of a lower case and an upper cover, and a vibrator, an elastic support member, a coil, and an FPCB board for electrical connection of the coil are disposed in the housing.
  • the FPCB board and the coil are fixed on the lower case, that is, the FPCB board is first laid on the lower case, and then the coil is bonded on the FPCB board.
  • the thickness of the FPCB board occupies the space of the linear motor along the vibration direction, which reduces the vibration effect.
  • the conventional vibration motor generally has an elastic support member disposed between the upper cover and the vibrator. This design also occupies the space of the linear motor in the vibration direction, which is disadvantageous to the slimness and miniaturization of the motor.
  • a vibration motor includes:
  • a housing comprising an upper cover and a lower case connected to each other, the lower case being embedded with an FPCB board, the inside of the housing being provided with a cavity, the cavity housing a coil and a vibration system;
  • the vibration system includes a vibrator and a resilient support member, the vibrator is provided with a magnetic gap, a first end of the elastic support member is coupled to the vibrator, and a second end of the elastic support member and the housing Connecting; a first end of the coil is fixed to the lower case, a second end of the coil is inserted into the magnetic gap, and the coil is signally connected to an external circuit through the FPCB board.
  • the lower case is provided with a through hole in a thickness direction, and the FPCB board is embedded in the through hole.
  • the FPCB board includes an inner connecting portion that turns on the coil, and turns on an external circuit And an outer connecting portion and a bent portion connecting the inner connecting portion and the outer connecting portion, wherein the inner connecting portion or the inner connecting portion and the bent portion are embedded in the through hole, and the outer connecting portion is disposed in the On the lower shell on the outside of the cavity.
  • a portion of the FPCB board opposite to the coil and the side wall of the upper cover is embedded in the lower case to form a U-shaped bent portion.
  • the first end of the coil is fixedly connected to the FPCB board, and the coil is fixed to the lower case through the FPCB board.
  • the second end of the elastic support member is fixedly connected to the lower case, and the first end of the elastic support member is fixedly connected to a side of the vibrator adjacent to the lower case.
  • the vibrator comprises a basin frame, a magnet and a weight
  • the basin frame comprising a bottom, a side wall and a cavity formed by the bottom and the side wall, the magnet being disposed in the inner cavity
  • a magnetic gap is disposed between the magnet and the sidewall, and the weight is sleeved on an outer surface of the sidewall.
  • the height of the basin frame in the vibration direction is greater than the thickness of the weight block, and the upper cover is provided with a through hole at a position corresponding to the basin frame, and the inner diameter of the through hole is larger than or equal to The outer diameter of the basin frame.
  • the second end of the elastic support member is fixedly connected to the upper cover, and the first end of the elastic support member is fixedly connected with a side of the vibrator away from the lower case.
  • a portable device wherein the portable device is provided with the vibration motor provided by the present invention.
  • the inventors of the present invention have found that in the prior art, the FPCB board is laid flat on the lower case, and the thickness of the FPCB board of this structure occupies the space of the vibration motor in the vibration direction, which weakens the vibration effect of the motor. Therefore, the technical task to be achieved by the present invention or the technical problem to be solved is not thought of or expected by those skilled in the art, so the present invention is a new technical solution.
  • the vibration motor provided by the invention has the FPCB board embedded on the lower shell, thereby saving the space inside the vibration motor along the vibration direction, greatly increasing the vibration space of the vibrator and improving the vibration effect of the vibration motor.
  • Figure 1 is an exploded view of a vibration motor of an embodiment of the present invention.
  • Fig. 2 is a cross-sectional view showing a vibration motor of an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of an FPCB board according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of another FPCB board according to an embodiment of the present invention.
  • Fig. 5 is a cross-sectional view showing another vibration motor of the embodiment of the present invention.
  • Fig. 6 is a structural schematic view of another vibration motor according to an embodiment of the present invention.
  • the present invention provides a vibration motor.
  • the motor includes a housing, a vibration system, and a coil 8.
  • the casing is formed by interconnecting the upper cover 1 and the lower casing 2, and may be joined by means well known in the art, such as fastening, bonding, bolting, welding, and the like.
  • the lower casing has a sheet shape, the upper cover has a hollow structure and one end is open, and the lower casing is disposed at an open end of the upper cover, and a cavity 102 is formed inside, and the vibration system and the coil 8 are accommodated in the cavity 102.
  • the lower casing 2 is embedded with an FPCB board 9.
  • the FPCB board is in the form of a sheet having a set thickness.
  • the FPCB board is embedded in the surface of the lower case 2 in the thickness direction.
  • the coil 8 is signally coupled to an external circuit via the FPCB board 9.
  • the FPCB board 9 includes an inner connecting portion 901 that turns on the coil 8, an outer connecting portion 903 that turns on an external circuit, and a bent portion 902 that connects the inner connecting portion 901 and the outer connecting portion 903, the inner connecting portion 901 Or the inner connecting portion 901 and the bent portion 902 are embedded in the through hole 201, and the outer connecting portion 903 is disposed on the lower case 2 outside the cavity.
  • the inner connecting portion 901 is connected to the outer connecting portion 903.
  • the inner connecting portion 901 is provided with an inner pad 9011 which is signal-connected to the coil 8.
  • the signal connection between the lead 901 of the coil 8 and the FPCB board 9 can be realized by soldering.
  • the inner pad 9011 is disposed on the surface of the inner connecting portion 901 close to the coil 8. This type of connection facilitates the electrical connection of the lead 801 to the inner pad 9011 and does not occupy the vibration space of the vibrator.
  • the outer connecting portion 903 is provided with an outer pad 9031 that is signally connected to an external circuit, and the connection method can also be solder bonding. It can be understood that the inner pad 9011 and the outer pad 9031 are respectively provided with two. The inner pads 9011 are electrically connected in one-to-one correspondence with the outer pads 9031. As shown in FIG.
  • the bending direction of the bending portion 902 may be various, for example, the bending portion is bent upward, and the outer connecting portion 903 is disposed on the upper surface of the lower casing 2.
  • the external circuit may be electrically connected to the outer pad 9031 on the upper surface.
  • the bent portion 902 is bent downward, the outer connecting portion 903 is disposed on the lower surface of the lower case 2, and the external circuit can be electrically connected to the outer pad 9031 on the lower surface.
  • a portion of the FPCB board 9 opposite to the side walls of the coil 8 and the upper cover 1 is embedded in the lower case 2 to form a U-shaped bent portion 902.
  • the lower case 2 is also provided with a through hole 202.
  • One end of the bent portion 902 is connected to the inner connecting portion 901, and an inner pad 9011 is provided on the surface of the inner connecting portion 901 away from the coil 8, and the inner pad 9011 is opposed to the through hole 202.
  • the lead 801 is soldered, the lead 801 of the coil 8 is passed out from the side of the FPCB board 9 to reach the inner pad. 9011.
  • the via 202 provides space for the electrical connection of the lead 801 to the inner pad 9011.
  • the inner pad 9011 is provided on the outer side of the FPCB board 9 to save space for vibrator vibration, which is advantageous in miniaturization and thinning of the vibration motor.
  • the other end of the bent portion 902 is connected to the outer connecting portion 903. Both the inner connecting portion 901 and the outer connecting portion 903 are located on the upper surface of the lower case 2.
  • the U-shaped structure leaves a space for vibration of the elastic support member 7 and the vibrator, and improves the vibration effect of the vibration motor.
  • the vibration system includes a magnetic circuit assembly, a weight 3, and an elastic support 7 that cooperate with each other.
  • the magnetic circuit assembly is provided with a magnetic gap 501, and the weight 3 is connected to the magnetic circuit assembly to form a vibrator, and the connection can be performed by bonding, snapping or the like.
  • the elastic support member 7 may be a spring or a spring with a spiral cantilever structure, the first end of which is connected to the vibrator, and the second end of the elastic support member 7 is connected to the housing.
  • the preferred connection form is welding. .
  • the coil 8 includes a first end and a second end disposed opposite each other in an extending direction thereof, wherein the first end of the coil is fixed to the lower case 2, and it will be understood by those skilled in the art that the first end of the coil 8 can be directly fixedly connected
  • the lower case 2 can also be connected to other components first, and indirectly connected to the lower case 2 by the component.
  • the second end of the coil 8 is inserted into the magnetic gap 501.
  • the vibrator has various structural forms.
  • the vibrator includes a basin frame 4, a magnet 5, and a weighting block 3.
  • the basin frame 4 includes a bottom portion 401, a side wall 402, and a cavity formed by the bottom portion 401 and the side wall 402.
  • the magnet 5 is disposed in the inner cavity, and a magnetic gap 501 is disposed between the magnet 5 and the side wall 402.
  • the sleeve is sleeved on the outer surface of the side wall 402.
  • the basin frame 4, the magnet 5, and the weight 3 can be fixedly joined by means well known to those skilled in the art, such as bonding.
  • the magnet may be, but not limited to, a ferrite magnet and a neodymium iron boron magnet.
  • the basin frame 4 is a magnetically permeable material such as iron.
  • the basin frame 4 and the magnet 5 constitute an outer magnetic structure, and of course, the basin frame 4 and the magnet may be provided as an inner magnetic structure as long as a stable uniform magnetic field can be formed.
  • the magnet 5 is further provided with a washer 6 on the side close to the lower case 2.
  • the washer 6 has a magnetic conductive function, and the magnetic lines of force can be concentrated into the magnetic gap 501 and the direction of the magnetic lines of force is perpendicular to the vibration direction of the vibrator.
  • the height of the basin frame 4 in the direction of vibration is greater than the thickness of the weight 3 .
  • the upper cover 1 is provided with a through hole 101 at a position corresponding to the basin frame 4, and a through hole
  • the inner diameter of the 101 is larger than the outer diameter of the basin frame 4.
  • the vibration signal of the external circuit is transmitted to the coil 8 through the circuit layout of the FPCB board 9.
  • the coil 8 is energized, it is subjected to a magnetic field force in a uniform magnetic field of the magnetic gap 501. Since the coil 8 is fixed to the lower casing 2, the coil 8 does not vibrate, but the coil 8 gives a reaction force to the vibrator to cause the vibrator to vibrate. Since the magnetic field force received by the coil 8 is the direction in which the magnetic field lines are cut, the vibrator is linearly vibrated perpendicular to the plane in which the coil 8 winding is located.
  • the vibrator is further provided with a weight 3, and the material of the weight 3 may be tungsten steel, stainless steel or the like.
  • the vibrator is fixedly connected to the elastic support member 7.
  • the elastic support member 7 When the elastic support member 7 is compressed or stretched, there is a tendency to return to the initial position, and an elastic force is generated. It can be understood that the elastic support member 7 is elastic from the initial position. The bigger. This elastic force acts on the vibrator. Therefore, when the vibrator vibrates, it is subjected to the magnetic field force and the elastic force of the elastic support member 7, and the presence of the two forces causes the vibrator to vibrate within the set displacement range.
  • the FPCB board 9 is embedded on the lower casing 2 instead of being laid on the surface of the lower casing 2. This structure saves the space inside the vibration motor in the vibration direction, so that the vibration space of the vibrator is greatly increased and improved. The vibration effect of the motor. Moreover, this structure conforms to the development advantages of the slimming and miniaturization of the vibration motor.
  • the increased space can be used to increase the thickness of the weight 3 and also to increase the vibration of the motor.
  • the second end of the elastic support member 7 is fixed to the lower case 2
  • the first end of the elastic support member 7 is fixedly connected to the side of the vibrator adjacent to the lower casing 2.
  • the elastic support member 7 is composed of a plurality of cantilevers extending from the first end to the second end, the ends of which are connected to form an annular second end, and the elastic support member 7 has a contour from the first end
  • the second end is gradually enlarged to form a bell mouth shape.
  • the cantilever is extended in a spiral shape from the first end to the second end.
  • the first end of the elastic support member 7 is provided with a structure having a hole in the middle, the inner diameter of the hole being larger than the outer diameter of the coil 8.
  • the elastic support member 7 can be formed in one piece by a sheet forming method by press forming.
  • the magnetic gap 501 is located in an area surrounded by the first end to make the coil 8 The two ends pass through the hole and reach the magnetic gap 501.
  • the structure of the elastic support member 7 is not limited thereto, and may be other structures such as a zigzag structure formed by a cantilever, as long as it can generate an elastic force to the vibrator.
  • the first end When connected, the first end is fixed to the side of the vibrator that is close to the coil 8.
  • the second end of the elastic support member 7 is fixedly coupled to the lower case 2. It will be understood that both the coil 8 and the FPCB board 9 are disposed in the middle of the area surrounded by the edge of the second end. With this configuration, the provision of the elastic support member 7 makes full use of the space other than the coil 8 without additionally occupying a space. The vibration space is greatly saved, and the vibration motor can be made to have a smaller size.
  • the elastic support member 7 on the side of the vibrator that is away from the coil 8. At this time, the second end of the elastic support member 7 is fixedly connected to the upper cover 1, and the first end of the elastic support member 7 is fixedly connected to the side of the vibrator away from the lower case 2. This structure facilitates the mounting of components.
  • the lower case 2 is provided with a through hole 201 in the thickness direction, and the FPCB board 9 is embedded in the through hole 201.
  • This structure can minimize the space occupied by the FPCB board 9 in the thickness direction thereof. .
  • the FPCB board 9 is bent once at a position passing through the side wall 402 of the upper cover 1, so that the inner connecting portion is fitted into the lower case 2.
  • two bendings are performed. This structure simplifies the processing of the FPCB board 9 and improves the yield.
  • the thickness of the lower case 2 is greater than or equal to the thickness of the FPCB board 9, and it is understood that the surface of the FPCB board 9 after embedding is located below the surface on which the lower case 2 is located.
  • the first end of the coil 8 is fixedly connected to the FPCB board 9 and is fixedly connected to the lower case 2 through the FPCB board 9. This structure further reduces the space of the coil 8 and the FPCB board 9 in the vibration direction.
  • the present invention also provides a portable device provided with the vibration motor provided by the present invention.
  • Portable devices can be mobile phones, tablets, laptops, and the like.
  • the portable device has the characteristics of good vibration effect.

Landscapes

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

Abstract

一种振动马达及便携式设备，该马达包括：壳体，其包括相互连接的上盖（1）和下壳（2），下壳（2）嵌设有FPCB板（9），壳体的内部设置有腔体（102），腔体（102）内收容有线圈（8）和振动系统；其中，振动系统包括振子和弹性支撑件（7），振子设置有磁间隙（501），弹性支撑件（7）的第一端与振子连接，弹性支撑件（7）的第二端与壳体连接；线圈（8）的第一端固定于下壳（2），线圈（8）的第二端插入磁间隙（501）中，线圈（8）通过FPCB板（9）与外部电路信号连接。该马达的FPCB（9）板嵌设在下壳（2）上，从而节约了振动马达内部沿振动方向上的空间，使振子的振动空间大大增加，提高了振动效果。

Description

振动马达以及便携式设备 技术领域
本发明涉及振动设备技术领域，更具体地，涉及一种扁平式线性振动马达以及应用了该振动马达的便携式设备。
背景技术
目前，振动马达广泛的应用在便携式设备中，尤其是手机设备中。一般的振动马达包括：由下壳和上盖组成的壳体，壳体内设置振子、弹性支撑件、线圈和用于线圈电连接的FPCB板。通常，FPCB板和线圈固定在下壳上，即，先在下壳上平铺FPCB板，然后在FPCB板上粘接线圈。FPCB板的厚度占用线性马达沿振动方向的空间，减弱了振动效果。此外，现有的振动马达一般将弹性支撑件设置在上盖与振子之间，这种设计同样占用了线性马达沿振动方向的空间，不利于马达的轻薄化、小型化。
发明内容
本发明的一个目的是提供一种振动马达的新技术方案。
根据本发明的第一方面，提供了一种振动马达。该马达包括：
壳体，其包括相互连接的上盖和下壳，所述下壳嵌设有FPCB板，所述壳体的内部设置有腔体，所述腔体内收容有线圈和振动系统；
其中，所述振动系统包括振子和弹性支撑件，所述振子设置有磁间隙，所述弹性支撑件的第一端与所述振子连接，所述弹性支撑件的第二端与所述壳体连接；所述线圈的第一端固定于所述下壳，所述线圈的第二端插入所述磁间隙中，所述线圈通过所述FPCB板与外部电路信号连接。
优选地，所述下壳设置有沿厚度方向的贯穿孔，所述FPCB板嵌入所述贯穿孔中。
优选地，所述FPCB板包括导通所述线圈的内连接部、导通外部电路 的外连接部以及连接所述内连接部和外连接部的弯折部，所述内连接部或所述内连接部与弯折部嵌入所述贯穿孔，所述外连接部设于所述腔体外侧的所述下壳上。
优选地，所述FPCB板的与所述线圈和所述上盖的侧壁相对的部位嵌入所述下壳形成U字形的弯折部。
优选地，所述线圈的第一端与所述FPCB板固定连接，所述线圈通过所述FPCB板固定于所述下壳。
优选地，所述弹性支撑件的第二端与所述下壳固定连接，所述弹性支撑件的第一端与所述振子的靠近所述下壳的一侧固定连接。
优选地，所述振子包括盆架、磁体以及配重块，所述盆架包括底部、侧壁以及由所述底部和所述侧壁包围形成的内腔，所述磁体设置于所述内腔中，所述磁体与所述侧壁之间设置有磁间隙，所述配重块套设于所述侧壁的外表面。
优选地，所述盆架的沿振动方向的高度大于所述配重块的厚度，所述上盖在与所述盆架相对应位置设置有通孔，所述通孔的内径尺寸大于等于所述盆架的外径尺寸。
优选地，所述弹性支撑件的第二端与所述上盖固定连接，所述弹性支撑件的第一端与所述振子的远离所述下壳的一侧固定连接。
根据本发明的第二方面，提供了一种便携式设备，其中，所述便携式设备设置有本发明提供的所述振动马达。
本发明的发明人发现，在现有技术中，FPCB板平铺在下壳上，这种结构FPCB板的厚度占用振动马达沿振动方向的空间，减弱了马达的振动效果。因此，本发明所要实现的技术任务或者所要解决的技术问题是本领域技术人员从未想到的或者没有预期到的，故本发明是一种新的技术方案。
本发明提供的振动马达，FPCB板嵌设在下壳上，从而节约了振动马达内部沿振动方向上的空间，使振子的振动空间大大增加，提高了振动马达的振动效果。
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。
附图说明
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。
图1：本发明实施例的振动马达的分解图。
图2：本发明实施例的振动马达的剖视图。
图3：本发明实施例的FPCB板的结构示意图。
图4：本发明实施例的另一种FPCB板的结构示意图。
图5：本发明实施例的另一种振动马达的剖视图。
图6：本发明实施例的另一种振动马达的结构示意图。
其中，1：上盖；101：通孔；102：腔体；2：下壳；201：贯穿孔；202：通孔；3：配重块；4：盆架；401：底部；402：侧壁；5：磁体；501：磁间隙；6：华司；7：弹性支撑件；8：线圈；801：引线；9：FPCB板；901：内连接部；9011：内焊盘；902：弯折部；903：外连接部；9031：外焊盘。
具体实施方式
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。
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。
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。
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。
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。
本发明提供了一种振动马达。如图1-2所示，该马达包括：壳体、振动系统和线圈8。壳体由上盖1和下壳2相互连接而成，可以通过本领域技术所熟知的方式，如扣合、粘接、螺栓连接、焊接等方式进行连接。下壳为片状，上盖为中空结构且一端敞开，下壳设置在上盖的敞开端，内部形成腔体102，腔体102内收容有振动系统和线圈8。在本实施例中，下壳2嵌设有FPCB板9。FPCB板为片状，具有设定的厚度，在本实施例中，FPCB板沿厚度方向嵌入下壳2所在的表面中。
如图2-4所示，线圈8通过FPCB板9与外部电路信号连接。FPCB板9包括导通所述线圈8的内连接部901、导通外部电路的外连接部903以及连接所述内连接部901和外连接部903的弯折部902，所述内连接部901或所述内连接部901与弯折部902嵌入所述贯穿孔201，所述外连接部903设于所述腔体外侧的所述下壳2上。内连接部901外连接部903其中，内连接部901设置有与线圈8信号连接的内焊盘9011，可以通过锡焊焊接的方式实现线圈8的引线901与FPCB板9的信号连接。优选的是，内焊盘9011设置在内连接部901的靠近线圈8的表面，该种连接方式便于引线801与内焊盘9011的电连接，且不占用振子的振动空间。外连接部903设置有与外部电路信号连接的外焊盘9031，其连接方式同样可以是锡焊焊接。可以理解的是，内焊盘9011和外焊盘9031分别设置有两个。且内焊盘9011与外焊盘9031一一对应地进行电连接。如图3-4所示，为了适应外部连接部的电连接，弯折部902的弯折方向可以有多种，例如弯折部向上弯折，则外连接部903设置在下壳2的上表面，外部电路可以在上表面与外焊盘9031电连接。例如弯折部902向下弯折，则外连接部903设置在下壳2的下表面，外部电路可以在下表面与外焊盘9031电连接。
在本发明的另一具体实施方式中，如图5-6所示，FPCB板9的与线圈8和上盖1的侧壁相对的部位嵌入下壳2形成U字形的弯折部902。下壳2还设置有通孔202。弯折部902的一端连接内连接部901，内连接部901的在远离线圈8的表面设置有内焊盘9011，内焊盘9011与通孔202相对。焊接引线801时，线圈8的引线801从FPCB板9的侧部穿出，到达内焊盘 9011。通孔202为引线801与内焊盘9011的电连接提供了空间。此外，内焊盘9011设置在FPCB板9的外侧节省了振子振动的空间，有利振动马达的小型化、轻薄化。弯折部902的另一端连接外连接部903。内连接部901和外连接部903均位于下壳2的上表面。U字形的结构为弹性支撑件7和振子留出了振动的空间，提高振动马达的振动效果。
如图1所示，振动系统包括相互配合的磁路组件、配重块3和弹性支撑件7。磁路组件设置有磁间隙501，配重块3与磁路组件相连接构成振子，该连接可以通过粘接、卡接等方式进行。弹性支撑件7可以是弹簧或者带有螺旋状悬臂结构的弹片，其第一端与振子连接，弹性支撑件7的第二端与壳体连接，为了使连接更牢固，优选的连接形式是焊接。线圈8包括沿其延伸方向相对设置的第一端和第二端，其中，线圈的第一端固定于下壳2，本领域技术人员可以理解的是，线圈8的第一端可以直接固定连接到下壳2上，也可以先连接到其他元器件，通过该元器件间接地与下壳2形成固定。线圈8的第二端插入磁间隙501中。
振子有多种结构形式，在本实用新型的一种具体实施方式中，如图1-2所示，振子包括盆架4、磁体5以及配重块3。盆架4包括底部401、侧壁402以及由底部401和侧壁402包围形成的内腔，磁体5设置于内腔中，磁体5与侧壁402之间设置有磁间隙501，配重块3套设于侧壁402的外表面。可以采用本领域技术人员所熟知的手段，如粘接等将盆架4、磁体5以及配重块3进行固定连接。磁铁可以是但不局限于铁氧体磁铁和钕铁硼磁铁。盆架4为导磁材料，如铁等。在该结构中，盆架4和磁体5构成外磁式结构，当然也可以是，盆架4和磁铁被设置为内磁式结构，只要能形成稳定的匀强磁场即可。
进一步地，为了使磁间隙501内的匀强磁场更稳定，提高振子的振动效果，如图2所示，磁体5在靠近下壳2的一侧还设置有华司6。华司6具有导磁的作用，可以将磁力线集中到磁间隙501中并且使磁力线的方向垂直于振子的振动方向。
在本实用新型的一种具体实施方式中，盆架4的沿振动方向的高度大于配重块3的厚度。上盖1在与盆架4相对应位置设置有通孔101，通孔 101的内径尺寸大于盆架4的外径尺寸。振动时，盆架4的凸出于配重块3的部分可以穿过该通孔101。通孔101的设置在不改变原有外壳尺寸的前提下，加高了振动空间，这种结构更适合于振子在大振幅时的振动。
该振动马达在工作时，外部电路的振动信号通过FPCB板9的电路布图传递到线圈8。线圈8通电后，在磁间隙501的匀强磁场中受到磁场力的作用。由于线圈8固定在下壳2上，故线圈8不发生振动，但线圈8会给振子一个反作用力，使振子发生振动。由于线圈8受到的磁场力为切割磁力线的方向，故振子垂直于线圈8绕组所在的平面做线性振动。
为了增大惯性以提高振动效果，振子还设置配重块3，配重块3的材质可以是钨钢、不锈钢等材料。振子与弹性支撑件7固定连接，弹性支撑件7被压缩时或者被拉伸时都会有回复到初始位置的倾向，会产生弹力，可以理解的是，弹性支撑件7偏离初始位置越大则弹力越大。该弹力又作用到振子。因此，振子振动时会受到磁场力和弹性支撑件7的弹力的作用，两种力的存在使得振子在设定的位移范围内振动。
本发明提供的振动马达，FPCB板9嵌设在下壳2上而不是平铺在下壳2的表面，这种结构节约了振动马达内部沿振动方向上的空间，使振子的振动空间大大增加，提高了马达的振动效果。并且，这种结构顺应了振动马达轻薄化、小型化的发展优势。
此外，增加的空间可以用来增加配重块3的厚度，也可以起到增加马达振感的作用。
在本发明的一种优选的实施方式中，如图2所示，为了减小弹性支撑件7在振动马达的振动方向上所占的空间，弹性支撑件7的第二端与下壳2固定连接，弹性支撑件7的第一端与振子的靠近下壳2的一侧固定连接。具体地，弹性支撑件7由多条悬臂构成，多条悬臂由第一端向第二端延伸，其末端相连接形成环状的第二端，弹性支撑件7的轮廓为由第一端向第二端逐渐扩大形成喇叭口形，优选的是，悬臂成逐渐放大的螺旋状由第一端向第二端延伸。弹性支撑件7的第一端被设置为中间有孔的结构，该孔的内径大于线圈8的外径。弹性支撑件7可以由一块片材，采用冲压成型的方法一次成型。磁间隙501位于第一端所包围的区域内，以使线圈8的第 二端穿过该孔后到达磁间隙501中。弹性支撑件7的结构不限于此，还可以是悬臂形成之字形结构等其他结构，只要能对振子产生弹力即可。
连接时，第一端固定在振子的靠近线圈8的一侧。弹性支撑件7的第二端固定连接到下壳2上。可以理解的是，线圈8和FPCB板9都设置在第二端的边缘所包围的区域的中部。这种结构下，弹性支撑件7的设置充分利用了线圈8以外的空间，而不用另外占用空间。大大节省了振动空间，并且可以使振动马达具有更小的尺寸。
当然，也可以是将弹性支撑件7设置在振子的远离线圈8的一侧。此时，弹性支撑件7的第二端与上盖1固定连接，弹性支撑件7的第一端与振子的远离下壳2的一侧固定连接。这种结构便于元器件的安装。
进一步地，如图2所示，下壳2设置有沿厚度方向的贯穿孔201，FPCB板9嵌入贯穿孔201中，这种结构可以最大程度的减小FPCB板9在其厚度方向占用的空间。制作时，只需FPCB板9在穿过上盖1的侧壁402的位置进行一次弯折，使内连接部嵌入下壳2即可。而不用像现有的FPCB板9那样需要在侧壁402的位置设计成U形，进行两次弯折。这种结构简化了FPCB板9的加工过程，提高了良品率。下壳2的厚度大于等于FPCB板9的厚度，由此可知，嵌入后FPCB板9的表面位于下壳2所在的表面之下。线圈8的第一端固定连接到FPCB板9上，通过FPCB板9与下壳2形成固定连接。这种结构进一步减小了线圈8和FPCB板9在振动方向上的空间。
当然，也可以是在下壳2设置有凹槽而非贯穿孔201，FPCB板9设置在凹槽中，同样可以节省空间。凹槽结构更便于FPCB板9与下壳2的固定连接，并且壳体的结构更稳固。
本发明还提供了一种便携式设备，其设置有本发明提供的振动马达。便携式设备可以是手机、平板电脑、笔记本电脑等。该便携式设备具有振动效果好的特点。
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。

Claims (10)

  1. 一种振动马达，其特征在于，包括：
    壳体，其包括相互连接的上盖(1)和下壳(2)，所述下壳(2)嵌设有FPCB板(9)，所述壳体的内部设置有腔体(102)，所述腔体(102)内收容有线圈(8)和振动系统；
    其中，所述振动系统包括振子和弹性支撑件(7)，所述振子设置有磁间隙(501)，所述弹性支撑件(7)的第一端与所述振子连接，所述弹性支撑件(7)的第二端与所述壳体连接；所述线圈(8)的第一端固定于所述下壳(2)，所述线圈(8)的第二端插入所述磁间隙(501)中，所述线圈(8)通过所述FPCB板(9)与外部电路信号连接。
  2. 根据权利要求1所述的振动马达，其特征在于，所述下壳(2)设置有沿厚度方向的贯穿孔(201)，所述FPCB板(9)嵌入所述贯穿孔(201)中。
  3. 根据权利要求1-2中的任意一项所述的振动马达，其特征在于，所述FPCB板(9)包括导通所述线圈(8)的内连接部(901)、导通外部电路的外连接部(903)以及连接所述内连接部(901)和所述外连接部(903)的弯折部(902)，所述内连接部(901)或所述内连接部(901)与弯折部(902)嵌入所述贯穿孔(201)，所述外连接部(903)设于所述腔体(102)外侧的所述下壳(2)上。
  4. 根据权利要求1-3中的任意一项所述的振动马达，其特征在于，所述FPCB板(9)的与所述线圈(8)和所述上盖(1)的侧壁相对的部位嵌入所述下壳(2)形成U字形的弯折部(902)。
  5. 根据权利要求1-4中的任意一项所述的振动马达，其特征在于，所述线圈(8)的第一端与所述FPCB板(9)固定连接，所述线圈(8)通 过所述FPCB板(9)固定于所述下壳(2)。
  6. 根据权利要求1-5中的任意一项所述的振动马达，其特征在于，所述弹性支撑件(7)的第二端与所述下壳(2)固定连接，所述弹性支撑件(7)的第一端与所述振子的靠近所述下壳(2)的一侧固定连接。
  7. 根据权利要求1-6中的任意一项所述的振动马达，其特征在于，所述振子包括盆架(4)、磁体(5)以及配重块(3)，所述盆架(4)包括底部(401)、侧壁(402)以及由所述底部(401)和所述侧壁(402)包围形成的内腔，所述磁体(5)设置于所述内腔中，所述磁体(5)与所述侧壁(402)之间设置有磁间隙(501)，所述配重块(3)套设于所述侧壁(402)的外表面。
  8. 根据权利要求1-7中的任意一项所述的振动马达，其特征在于，所述盆架(4)的沿振动方向的高度大于所述配重块(3)的厚度，所述上盖(1)在与所述盆架(4)相对应位置设置有通孔(101)，所述通孔(101)的内径尺寸大于等于所述盆架(4)的外径尺寸。
  9. 根据权利要求1-8中的任意一项所述的振动马达，其特征在于，所述弹性支撑件(7)的第二端与所述上盖(1)固定连接，所述弹性支撑件(7)的第一端与所述振子的远离所述下壳(2)的一侧固定连接。
  10. 一种便携式设备，其特征在于，所述便携式设备设置有如权利要求1-9中的任意一项所述的振动马达。
PCT/CN2016/082845 2016-03-28 2016-05-20 振动马达以及便携式设备 WO2017166400A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/145,133 US10536063B2 (en) 2016-03-28 2018-09-27 Vibration motor and portable device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610187288.7 2016-03-28
CN201610187288.7A CN105720776B (zh) 2016-03-28 2016-03-28 振动马达以及便携式设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/145,133 Continuation US10536063B2 (en) 2016-03-28 2018-09-27 Vibration motor and portable device

Publications (1)

Publication Number Publication Date
WO2017166400A1 true WO2017166400A1 (zh) 2017-10-05

Family

ID=56159204

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/082845 WO2017166400A1 (zh) 2016-03-28 2016-05-20 振动马达以及便携式设备

Country Status (3)

Country Link
US (1) US10536063B2 (zh)
CN (1) CN105720776B (zh)
WO (1) WO2017166400A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113872409A (zh) * 2021-10-18 2021-12-31 浙江省东阳市东磁诚基电子有限公司 一种弹片非焊接式振动电机及其实现方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106374713B (zh) * 2016-11-01 2019-03-26 四川安和精密电子电器有限公司 一种线性振动马达
CN114268890A (zh) * 2021-11-16 2022-04-01 歌尔科技有限公司 一种喇叭与马达的组合结构
CN116581924A (zh) * 2021-12-06 2023-08-11 荣耀终端有限公司 振动马达和终端设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101404437A (zh) * 2008-11-11 2009-04-08 天津三星电机有限公司 线性振动电机
KR20100111368A (ko) * 2009-04-07 2010-10-15 엘지이노텍 주식회사 진동 장치
CN102857063A (zh) * 2011-06-30 2013-01-02 三星电机株式会社 线性振动电机
CN204886626U (zh) * 2015-07-30 2015-12-16 瑞声光电科技(常州)有限公司 振动电机

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009166016A (ja) * 2008-01-21 2009-07-30 Sanyo Electric Co Ltd 往復振動発生器
JP5659426B2 (ja) * 2010-02-16 2015-01-28 日本電産セイミツ株式会社 振動発生装置
JP5537984B2 (ja) * 2010-02-16 2014-07-02 日本電産セイミツ株式会社 往復振動発生器
KR101354773B1 (ko) * 2011-08-04 2014-01-23 삼성전기주식회사 선형진동모터
JP2013233537A (ja) * 2012-04-10 2013-11-21 Hosiden Corp バイブレータ
KR101525654B1 (ko) * 2012-12-06 2015-06-03 삼성전기주식회사 선형 진동자
JP5889259B2 (ja) * 2013-02-18 2016-03-22 日本電産コパル株式会社 リニア型振動アクチュエータ
US20140252890A1 (en) * 2013-03-08 2014-09-11 Cresyn Co., Ltd. Vibration generation device
CN104043575A (zh) * 2013-03-12 2014-09-17 可立新株式会社 振动发生装置
US9166452B1 (en) * 2014-07-03 2015-10-20 Nidec Corporation Spindle motor, disk drive apparatus, and electronic device
CN205622467U (zh) * 2016-03-28 2016-10-05 歌尔股份有限公司 振动马达以及便携式设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101404437A (zh) * 2008-11-11 2009-04-08 天津三星电机有限公司 线性振动电机
KR20100111368A (ko) * 2009-04-07 2010-10-15 엘지이노텍 주식회사 진동 장치
CN102857063A (zh) * 2011-06-30 2013-01-02 三星电机株式会社 线性振动电机
CN204886626U (zh) * 2015-07-30 2015-12-16 瑞声光电科技(常州)有限公司 振动电机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113872409A (zh) * 2021-10-18 2021-12-31 浙江省东阳市东磁诚基电子有限公司 一种弹片非焊接式振动电机及其实现方法

Also Published As

Publication number Publication date
CN105720776A (zh) 2016-06-29
US20190044426A1 (en) 2019-02-07
US10536063B2 (en) 2020-01-14
CN105720776B (zh) 2019-04-12

Similar Documents

Publication Publication Date Title
CN110177322B (zh) 屏幕发声激励器及电子设备
EP3352476B1 (en) Receiver
US9456280B2 (en) Electromagnetic transducer
JP7386062B2 (ja) 振動発生装置
WO2016192316A1 (zh) 振动发声装置
WO2017166400A1 (zh) 振动马达以及便携式设备
US11076235B2 (en) Speaker assembly
CN109379680B (zh) 发声器件
CN210641017U (zh) 发声器件
CN108810767B (zh) 扬声器及扬声器的制作方法
KR20150016049A (ko) 선형 진동자
WO2016179995A1 (zh) 振动扬声器
CN109640232A (zh) 扬声器
US7106879B2 (en) Loudspeaker
WO2017166399A1 (zh) 振动马达以及便携式设备
CN105516868A (zh) 一种具有振动功能和发声功能的多功能装置
CN106028234B (zh) 一种振膜及扬声器单体
WO2017045465A1 (zh) 受话器
CN209823995U (zh) 发声器件
CN209017299U (zh) 扬声器
CN209017297U (zh) 扬声器
CN213938307U (zh) 发声器件
JP7274607B2 (ja) 振動発生装置
CN101803403B (zh) 超薄型声换能器
JP7240948B2 (ja) 振動発生装置

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16896175

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16896175

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16896175

Country of ref document: EP

Kind code of ref document: A1