WO2015165308A1 - 提高低频音效的骨传导震子 - Google Patents

提高低频音效的骨传导震子 Download PDF

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Publication number
WO2015165308A1
WO2015165308A1 PCT/CN2015/074475 CN2015074475W WO2015165308A1 WO 2015165308 A1 WO2015165308 A1 WO 2015165308A1 CN 2015074475 W CN2015074475 W CN 2015074475W WO 2015165308 A1 WO2015165308 A1 WO 2015165308A1
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elastic piece
bone conduction
frequency sound
conduction vibrator
magnet
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PCT/CN2015/074475
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English (en)
French (fr)
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张小成
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苏州佑克骨传导科技有限公司
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Publication of WO2015165308A1 publication Critical patent/WO2015165308A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the utility model relates to a bone conduction vibrator which improves low frequency sound effect.
  • Conventional earphones generally attach the earphones to the ear holes or to the ear holes.
  • the earphones vibrate the air, and the air vibrates the eardrum of the person to transmit the sound to the human brain.
  • This kind of earphones because it needs to be attached to the ear hole or plugged in the ear hole when using it, when people cross the road, they can not hear the whistle of the car, which is quite dangerous;
  • the use of such headphones at a high volume has an effect on the human eardrum, which can cause human tinnitus and severely cause hearing loss.
  • the existing bone conduction seismic structure that improves the low-frequency sound effect is caused by the displacement of the coil to drive the shrapnel vibration, which has the following defects: 1.
  • the leakage sound installed in the main body of the earphone is serious; 2.
  • the internal structure causes the noise phenomenon to occur; 3.
  • the low frequency sound effect Poor; 4 the external vibration is too large, affecting the comfort of wearing.
  • the utility model overcomes the deficiencies of the prior art and provides a bone conduction vibrator which improves the low frequency sound effect.
  • a bone conduction vibrator for improving low frequency sound effects comprising a cylindrical outer casing and an elastic piece disposed near the bottom of the outer casing, the elastic piece including a spaced upper elastic body a lower elastic body and a column connecting the upper elastic body and the lower elastic body, wherein the upper elastic body is disposed on a side of the opening of the outer casing with a bowl-shaped bracket, and the bottom of the bracket is provided with a magnet, and the outer casing Provided with a circuit board and an upper cover on an outer side of the circuit board, the circuit board is provided with a coil toward a side of the bracket, the coil being concentrically disposed with the magnet and at least partially covering the magnet .
  • the bone conduction vibrator for improving low frequency sound effects further includes The shrapnel body and the circuit board are supported by an annular support frame.
  • the bone conduction vibrator for improving the low frequency sound effect further includes a radially inward boss provided on the bottom of the outer casing, and the lower elastic body is disposed on the boss.
  • the bone conduction vibrator for improving the low frequency sound effect further comprises the thickness of the upper elastic piece body and the lower elastic piece body being 0.15-0.20 mm.
  • the bone conduction vibrator for improving the low frequency sound effect further includes a spacing between the upper elastic piece body and the lower elastic piece body of 1.3-1.7 mm.
  • the bone conduction vibrator for improving the low frequency sound effect further includes the column having a cylindrical shape, and the column has a diameter of 1.3-1.5 mm.
  • the bone conduction vibrator for improving the low frequency sound effect further includes a distance between the lower elastic piece body and the inner cylinder bottom wall of the outer casing being 1.5-2.5 mm.
  • the bone conduction vibrator for improving the low frequency sound effect further includes a receiving cavity for receiving the magnet in the bowl bottom of the bracket.
  • the bone conduction vibrator for improving low frequency sound effects further includes electrically connecting the coil to the circuit board.
  • the bone conduction vibrator for improving the low frequency sound effect further includes at least one annular rib on the outer circumferential surface of the outer casing.
  • the utility model solves the defects existing in the background art, and the utility model realizes the vibration of the magnet under the action of the magnetic field force by the change of the strength of the electric signal, thereby driving the elastic piece to vibrate, the compressed air generates the sound, and the human hearing bone is heard.
  • the sound does not have any influence on the human eardrum, and the structure is simple, the volume is small, there is no noise, the elastic piece is in point contact with the magnet through the column, the amplitude of the elastic piece is large, the low frequency sound effect is good, and the external vibration can be reduced by being installed in the main body of the earphone. Noise reduction and comfortable wearing.
  • Figure 1 is an exploded view of a preferred embodiment of the present invention
  • Figure 2 is a cross-sectional view of a preferred embodiment of the present invention.
  • outer casing 4, shrapnel, 6, boss, 8, upper shrapnel body, 10, lower shrapnel body, 12, column, 14, bracket, 16, magnet, 18, housing cavity, 20, circuit board, 22, upper cover, 24, support frame, 26, coil, 28, convex ribs.
  • a bone conduction vibrator for improving the low frequency sound effect comprises a cylindrical outer casing 2 and a spring piece 4 disposed near the bottom of the outer casing 2.
  • the present invention preferably has a casing bottom provided with a radially inward direction.
  • the boss 6, the elastic piece 4 is placed on the boss 6, the elastic piece 4 includes a spaced upper elastic body 8, a lower elastic body 10, and a column 12 connecting the upper elastic body 8 and the lower elastic body 10, the upper elastic body 8 and the lower
  • the elastic body 10 is a thin metal piece.
  • the upper elastic body 8 is provided with a bowl-shaped bracket 14 on the side of the opening of the outer casing 2.
  • the upper elastic body 8 and the bracket 14 are provided.
  • the bottom of the bracket 14 is provided with a magnet 16.
  • the bowl bottom of the bracket 14 is centrally provided with a receiving cavity 18 for receiving the magnet 16, the magnet 16 is secured in the bracket 10, and the circuit board is provided at the opening of the outer casing 2.
  • 20 and an upper cover 22 located outside the circuit board 20 the upper end surface of the upper cover 22 is flush with the upper end surface of the outer casing 2.
  • the upper cover 22 of the present invention preferably is bonded and fixed to the outer casing 2 and the circuit board 20 by waterproof glue.
  • the circuit board 20 Supported by the annular support frame 24, the circuit board 20 is provided with a coil 26 on one side of the bracket 14, the coil 26 is electrically connected to the circuit board 20, and the coil 26 is concentrically arranged with the magnet 16 and at least partially covers the magnet 16.
  • the internal structure of the seismic element is installed. It is stable and has no noise.
  • the elastic piece 4 is connected to the magnet 16 through the bracket 16 through the bracket 16 to form a point contact.
  • the elastic piece 4 has large amplitude, good low frequency sound effect, and small overall volume, which is convenient for cooperation with the earphone main body, reducing external vibration and realizing noise reduction. .
  • the upper elastic body 8 and the lower elastic body 10 have the same shape and size, and the thickness d1 of the upper elastic body 8 and the lower elastic body 10 are both 0.15-0.20 mm. It is further preferred that the upper elastic body 8 and the lower elastic body 10 are each circular.
  • the distance d2 between the upper shrapnel body 8 and the lower shrapnel body 10 is 1.3-1.7 mm. Further preferably, the distance d2 between the upper elastic piece body 8 and the lower elastic piece body 10 is 1.5 mm.
  • the present invention preferably has a column 12 having a cylindrical shape, and the column 12 has a diameter of 1.3-1.5 mm.
  • the present invention preferably has a distance d3 between the lower shrapnel body 10 and the inner cylinder bottom wall of the outer casing 2 of 1.5 to 2.5 mm. It is further preferred that the distance d3 between the lower elastic body 10 and the inner cylinder bottom wall of the outer casing 2 is 2.0 mm.
  • the outer surface of the outer casing 2 of the present invention preferably has a circular cross section for easy insertion into the main body of the earphone, does not require additional auxiliary components, reduces the requirements on the main body structure of the earphone, and facilitates the processing of the main body of the earphone, but is not limited to a circular shape. It can also be square, oval, etc.
  • the outer peripheral surface of the outer casing 2 is provided with at least one annular rib 28 for facilitating the engagement with the groove in the earphone main body, thereby achieving stable assembly of the outer casing 2 and the earphone main body, reducing external vibration and realizing noise reduction.
  • the magnet 16 vibrates under the action of the magnetic force, thereby causing the elastic piece 4 to vibrate, and the sound is compressed by the vibration to generate sound, so that the human hearing
  • the elastic piece 4 forms a point contact with the magnet 16 through the column 12, and the elastic piece 4 has a large amplitude and a low frequency sound effect.

Abstract

一种提高低频音效的骨传导震子，包括筒形外壳（2）以及靠近所述外壳（2）筒底设置的弹片（4），所述弹片（4）包括间隔设置的上弹片本体（8）、下弹片本体（10）以及连接所述上弹片本体（8）和下弹片本体（10）的立柱（12），所述上弹片本体（8）朝向所述外壳（2）开口的一侧设置有碗形支架（14），所述支架（14）的碗底设置有磁铁（16），所述外壳（2）的开口处设置有线路板（20）以及位于所述线路板（20）外侧的上盖（22），所述线路板（20）朝向所述支架（14）的一侧设置有线圈（26），所述线圈（26）与所述磁铁（16）同心设置并至少部分包覆所述磁铁（16）。该骨传导震子通过磁铁（16）发生震动，从而带动弹片（4）震动，压缩空气使人的听骨听到声音，结构简单，体积小，没有杂音，弹片（4）通过立柱（12）与磁铁（16）为点接触，弹片（4）振幅大，低频音效好，安装在耳机主体内能减少外部震动，实现降噪。

Description

提高低频音效的骨传导震子 技术领域
本实用新型涉及一种提高低频音效的骨传导震子。
背景技术
传统的耳塞式耳机，一般都是将耳机贴在耳朵孔或塞在耳朵孔内，耳机通过振动空气，空气再振动人的耳膜，而将声音传到人脑。这种耳塞式耳机，由于在使用时需要将耳机贴在耳朵孔或塞在耳朵孔内，当人们在过马路时就听不到汽车的鸣笛声，那是相当危险的；另外，如果长期大音量地使用这种耳机，对人的耳膜有影响，会引起人的耳鸣，严重地会造成听力下降。现有出现了一种骨传导耳机，将电信号变为震动信号，通过与人体的听骨接触，使人听到声音，声音不需要经过空气传播，耳机也不必贴在耳朵孔或塞在耳朵孔内。但是现有提高低频音效的骨传导震子结构是通过线圈发生位移带动弹片震动，其存在以下缺陷：1、安装在耳机主体内漏音严重；2、内部结构导致杂音现象发生；3、低频音效差；4、外部震动感太大，影响佩戴的舒适性。
实用新型内容
本实用新型克服了现有技术的不足，提供一种提高低频音效的骨传导震子。
为达到上述目的，本实用新型采用的技术方案为：一种提高低频音效的骨传导震子，包括筒形外壳以及靠近所述外壳筒底设置的弹片，所述弹片包括间隔设置的上弹片本体、下弹片本体以及连接所述上弹片本体和下弹片本体的立柱，所述上弹片本体朝向所述外壳开口的一侧设置有碗形支架，所述支架的碗底设置有磁铁，所述外壳的开口处设置有线路板以及位于所述线路板外侧的上盖，所述线路板朝向所述支架的一侧设置有线圈，所述线圈与所述磁铁同心设置并至少部分包覆所述磁铁。
本实用新型一个较佳实施例中，提高低频音效的骨传导震子进一步包括所 述上弹片本体和线路板之间通过环形支撑架支撑。
本实用新型一个较佳实施例中，提高低频音效的骨传导震子进一步包括所述外壳筒底设置有径向向内的凸台，所述下弹片本体置于所述凸台上。
本实用新型一个较佳实施例中，提高低频音效的骨传导震子进一步包括所述上弹片本体和下弹片本体的厚度均为0.15-0.20mm。
本实用新型一个较佳实施例中，提高低频音效的骨传导震子进一步包括所述上弹片本体和下弹片本体之间的间距为1.3-1.7mm。
本实用新型一个较佳实施例中，提高低频音效的骨传导震子进一步包括所述立柱呈圆柱形，所述立柱的直径为1.3-1.5mm。
本实用新型一个较佳实施例中，提高低频音效的骨传导震子进一步包括所述下弹片本体与所述外壳的内筒底壁之间的距离为1.5-2.5mm。
本实用新型一个较佳实施例中，提高低频音效的骨传导震子进一步包括所述支架的碗底居中设置有收容所述磁铁的收容腔。
本实用新型一个较佳实施例中，提高低频音效的骨传导震子进一步包括所述线圈与所述线路板电连接。
本实用新型一个较佳实施例中，提高低频音效的骨传导震子进一步包括所述外壳的外周面上设有至少一个环形凸筋。
本实用新型解决了背景技术中存在的缺陷，本实用新型通过电信号的强弱变化实现磁铁在磁场力的作用下发生震动，从而带动弹片震动，压缩空气产生声音，使人的听骨听到声音，不会对人的耳膜造成任何影响，而且结构简单，体积小，没有杂音，弹片通过立柱与磁铁为点接触，弹片振幅大，低频音效好，同时安装在耳机主体内能减少外部震动，实现降噪，佩戴舒适。
附图说明
下面结合附图和实施例对本实用新型进一步说明。
图1是本实用新型的优选实施例的爆炸图；
图2是本实用新型的优选实施例的剖面图；
图中：2、外壳，4、弹片，6、凸台，8、上弹片本体，10、下弹片本体，12、立柱，14、支架，16、磁铁，18、收容腔，20、线路板，22、上盖，24、支撑架，26、线圈，28、凸筋。
具体实施方式
现在结合附图和实施例对本实用新型作进一步详细的说明，这些附图均为简化的示意图，仅以示意方式说明本实用新型的基本结构，因此其仅显示与本实用新型有关的构成。
如图1、图2所示，一种提高低频音效的骨传导震子，包括筒形外壳2以及靠近外壳2筒底设置的弹片4，本实用新型优选外壳2筒底设置有径向向内的凸台6，弹片4置于凸台6上，弹片4包括间隔设置的上弹片本体8、下弹片本体10以及连接上弹片本体8和下弹片本体10的立柱12，上弹片本体8和下弹片本体10均为薄金属片，上弹片本体8朝向外壳2开口的一侧设置有碗形支架14，为了进一步实现上弹片本体8与支架14的固定，上弹片本体8与支架14的碗底点焊连接，支架14的碗底设置有磁铁16，进一步的，支架14的碗底居中设置有收容磁铁16的收容腔18，磁铁16稳固在支架10内，外壳2的开口处设置有线路板20以及位于线路板20外侧的上盖22，上盖22的上端面与外壳2的上端面平齐，本实用新型优选上盖22分别与外壳2、线路板20通过防水胶水实现粘接固定，上弹片本体8和线路板20之间通过环形支撑架24支撑，线路板20朝向支架14的一侧设置有线圈26，线圈26与线路板20电连接，线圈26与磁铁16同心设置并至少部分包覆磁铁16，震子结构内部安装稳固，没有杂音，同时弹片4通过立柱16穿过支架14与磁铁16连接形成点接触，弹片4振幅大，低频音效好，且整体体积小，便于与耳机主体配合，减少外部震动，实现降噪。
本实用新型优选上弹片本体8和下弹片本体10的形状和大小相同，上弹片本体8和下弹片本体10的厚度d1均为0.15-0.20mm。进一步优选上弹片本体8和下弹片本体10均呈圆形。上弹片本体8和下弹片本体10之间的间距d2为1.3-1.7mm。进一步优选上弹片本体8和下弹片本体10之间的间距d2为1.5mm。
为了更好的实现磁铁16与弹片4之间的点接触，本实用新型优选立柱12呈圆柱形，立柱12的直径为1.3-1.5mm。
为了达到更好的立体声效果，本实用新型优选下弹片本体10与外壳2的内筒底壁之间的距离d3为1.5-2.5mm。进一步优选下弹片本体10与外壳2的内筒底壁之间的距离d3为2.0mm。
本实用新型优选外壳2的外表面横截面呈圆形，便于置入耳机主体内，不需要另外的辅助部件，降低对耳机主体结构的要求，便于耳机主体的加工，但并不局限于圆形，也可以为方形、椭圆形等。外壳2的外周面上设有至少一个环形凸筋28，便于与耳机主体内的凹槽卡接，实现外壳2与耳机主体的稳固装配，减少外部震动，实现降噪。
本实用新型在使用时，当线圈26通电时，随着电信号的强弱变化，磁铁16在磁场力的作用下发生震动，从而带动弹片4震动，通过震动压缩空气产生声音，使人的听骨听到声音，同时弹片4通过立柱12与磁铁16形成点接触，弹片4振幅大，低频音效更好。
以上依据本实用新型的理想实施例为启示，通过上述的说明内容，相关人员完全可以在不偏离本项实用新型技术思想的范围内，进行多样的变更以及修改。本项实用新型的技术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定技术性范围。

Claims (10)

  1. 一种提高低频音效的骨传导震子，包括筒形外壳以及靠近所述外壳筒底设置的弹片，其特征在于：所述弹片包括间隔设置的上弹片本体、下弹片本体以及连接所述上弹片本体和下弹片本体的立柱，所述上弹片本体朝向所述外壳开口的一侧设置有碗形支架，所述支架的碗底设置有磁铁，所述外壳的开口处设置有线路板以及位于所述线路板外侧的上盖，所述线路板朝向所述支架的一侧设置有线圈，所述线圈与所述磁铁同心设置并至少部分包覆所述磁铁。
  2. 根据权利要求1所述的提高低频音效的骨传导震子，其特征在于：所述上弹片本体和线路板之间通过环形支撑架支撑。
  3. 根据权利要求1所述的提高低频音效的骨传导震子，其特征在于：所述外壳筒底设置有径向向内的凸台，所述下弹片本体置于所述凸台上。
  4. 根据权利要求1所述的提高低频音效的骨传导震子，其特征在于：所述上弹片本体和下弹片本体的厚度均为0.15-0.20mm。
  5. 根据权利要求4所述的提高低频音效的骨传导震子，其特征在于：所述上弹片本体和下弹片本体之间的间距为1.3-1.7mm。
  6. 根据权利要求1所述的提高低频音效的骨传导震子，其特征在于：所述立柱呈圆柱形，所述立柱的直径为1.3-1.5mm。
  7. 根据权利要求1所述的提高低频音效的骨传导震子，其特征在于：所述下弹片本体与所述外壳的内筒底壁之间的距离为1.5-2.5mm。
  8. 根据权利要求1所述的提高低频音效的骨传导震子，其特征在于：所述支架的碗底居中设置有收容所述磁铁的收容腔。
  9. 根据权利要求1所述的提高低频音效的骨传导震子，其特征在于：所述线圈与所述线路板电连接。
  10. 根据权利要求1所述的提高低频音效的骨传导震子，其特征在于：所述外壳的外周面上设有至少一个环形凸筋。
PCT/CN2015/074475 2014-04-28 2015-03-18 提高低频音效的骨传导震子 WO2015165308A1 (zh)

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CN201420209803.3U CN203840525U (zh) 2014-04-28 2014-04-28 提高低频音效的骨传导震子
CN201420209803.3 2014-04-28

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