WO2021109790A1 - 一种用于发声装置的音圈线、音圈及发声装置 - Google Patents

一种用于发声装置的音圈线、音圈及发声装置 Download PDF

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Publication number
WO2021109790A1
WO2021109790A1 PCT/CN2020/126909 CN2020126909W WO2021109790A1 WO 2021109790 A1 WO2021109790 A1 WO 2021109790A1 CN 2020126909 W CN2020126909 W CN 2020126909W WO 2021109790 A1 WO2021109790 A1 WO 2021109790A1
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Prior art keywords
voice coil
cavity
wire
coil wire
present
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PCT/CN2020/126909
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English (en)
French (fr)
Inventor
张志兵
杨杰
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歌尔股份有限公司
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Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Priority to US17/782,738 priority Critical patent/US12003939B2/en
Publication of WO2021109790A1 publication Critical patent/WO2021109790A1/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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • 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
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • 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 present invention relates to the technical field of acoustics, and more specifically, the present invention relates to a voice coil wire, a voice coil, and a sound emitting device for a sound emitting device.
  • the speaker is a basic sound unit that converts electrical signals into acoustic signals.
  • the loudspeaker is equipped with a vibration system and a magnetic circuit system.
  • the vibration system includes a voice coil and a diaphragm. After the voice coil is connected to the current, it vibrates under the action of the magnetic field of the magnetic circuit system. The vibration of the voice coil drives the diaphragm to vibrate and produce sound.
  • the voice coil is usually made of voice coil wire.
  • most of the voice coil wires are metal wires. Among them, copper clad aluminum wire is widely used in speakers due to its high strength and low quality.
  • the current skin effect exists in the voice coil wire, that is, the current is concentrated in a thin layer on the surface of the conductor after being energized, and the current density increases with the decrease of the distance from the surface of the conductor. The actual current inside the conductor The density is small. The skin effect of the current leads to a lower use efficiency of the middle part of the voice coil, thereby reducing the overall utilization of the voice coil.
  • An object of the present invention is to provide a voice coil wire for a sound generating device, which solves the problem of low utilization rate of the existing voice coil wire.
  • Another object of the present invention is to provide a voice coil having the above voice coil wire.
  • Another object of the present invention is to provide a sound generating device having the above voice coil.
  • a voice coil wire includes: a wire body and a cavity provided in the wire body, the wire body is configured to pass a current signal; the cavity is in a vacuum state or is filled with an insulating gas.
  • the cavity is arranged along the axial direction of the voice coil wire.
  • the cavity includes a cavity portion, and the center of the cross section of the voice coil wire falls within the cavity portion.
  • the cavity includes two or more cavity portions, and two adjacent cavity portions are separated by the wire body.
  • the cross-sectional shape of the cavity portion is a circle or a polygon.
  • the wire body adopts a single-layer or double-layer metal material.
  • the material of the wire body is copper or copper-clad aluminum.
  • the distance between the outermost side of the wire body and the outermost side of the cavity is 0.1 mm-0.5 mm.
  • a voice coil having the voice coil line described above.
  • a sounding device including:
  • a vibration component comprising a diaphragm and the voice coil described above, and the diaphragm is connected to the voice coil;
  • a magnetic circuit assembly configured to provide a magnetic field for the voice coil assembly
  • a housing assembly, the voice coil assembly and the magnetic circuit assembly are arranged in the housing assembly.
  • the beneficial effect of the technical solution of the present invention is that by filling the cavity of the voice coil wire with insulating gas or setting the cavity in a vacuum state, the weight of the voice coil wire can be reduced, thereby reducing the skin effect on the voice coil wire.
  • the effect of improving the utilization rate of the voice coil line is that by filling the cavity of the voice coil wire with insulating gas or setting the cavity in a vacuum state, the weight of the voice coil wire can be reduced, thereby reducing the skin effect on the voice coil wire.
  • Fig. 1 is a schematic diagram of the structure of a voice coil in the prior art
  • Fig. 2 is a schematic diagram of the structure of a voice coil wire in the prior art
  • Fig. 3 is a schematic structural diagram of a voice coil according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a voice coil wire used in a sound generating device according to an embodiment of the present invention.
  • Fig. 5 is a schematic structural diagram of a voice coil wire used in a sound generating device according to an embodiment of the present invention
  • the labels in the figure are as follows: 10-voice coil wire; 11-wire body; 12-cavity; 121-cavity.
  • the voice coil in the prior art is usually shown in FIG. 1, and the structure of the voice coil wire 10 is shown in FIG. 2. That is, the voice coil wire is usually a solid structure. Due to the skin effect of the current, the utilization rate of the voice coil wire is low. Therefore, in view of the problems existing in the prior art, it is necessary to improve the structure of the voice coil wire to increase the overall utilization rate of the voice coil wire.
  • the present invention provides a voice coil wire, comprising: a wire body and a cavity provided in the wire body, the wire body is configured to pass a current signal; the cavity is in a vacuum state or filled with an insulating gas .
  • the voice coil wire 10 includes a wire body 11 and a cavity 12.
  • the cavity is arranged inside the line body.
  • the cavity may be enclosed by the wire body.
  • the wire body allows the current signal to pass in, that is, the electronic wire body moves directionally along the axis of the voice coil wire in the wire body.
  • the cavity can be set to a vacuum state, that is, the gas pressure of the cavity is close to the vacuum state, and the cavity exhibits insulating properties at this time.
  • the cavity can be filled with insulating gas, and the cavity at this time also exhibits insulating properties.
  • the insulating gas can be air, nitrogen, argon, etc., which is not limited in the present invention, and those skilled in the art can choose by themselves according to needs.
  • the cavity is enclosed inside the wire body, the wire body allows current to pass, and the cavity is filled with insulating gas or the cavity is set to a vacuum state.
  • This structure ensures both the electrical signal conduction characteristics of the voice coil wire It also reduces the skin effect of the current on the internal conductivity of the voice coil wire.
  • the uniformity of the current flow in the section of the voice coil wire can be improved.
  • the overall conductivity efficiency of the voice coil wire is improved.
  • the setting of the cavity can greatly reduce the weight of the voice coil wire.
  • the voice coil made of the weight-reduced voice coil wire has a smaller weight, and can produce greater amplitude under the same excitation conditions, and allows the Vibration in a wider frequency range can significantly improve the vibration sensitivity of the voice coil, thereby improving the acoustic performance of the sound generating device using the voice coil.
  • the reduction in the weight of the voice coil is conducive to reducing the weight of the sound generating device.
  • the cavity is arranged along the axial direction of the voice coil wire.
  • the cavity 12 may be provided as a communicating body extending along the axial direction of the voice coil wire 10.
  • Setting the cavity as a communicating body along the axis of the voice coil line can minimize the weight of the voice coil line, increase the amplitude and applicable frequency range of the corresponding voice coil, and improve the vibration sensitivity of the voice coil, thereby optimizing the sound generating device The acoustic performance.
  • arranging the cavity as a communicating body along the axial direction of the voice coil wire can greatly reduce the influence of the current skin effect and improve the current flow efficiency of the voice coil wire.
  • the cavities 12 may be evenly spaced along the axial direction of the voice coil wire 10.
  • the size of each cavity 12 in the axial direction of the voice coil wire may be greater than its size along the radial direction of the voice coil wire, and may also be smaller than or equal to the size along the radial direction of the voice coil wire, which is not limited in the present invention. . In this case, the break of the voice coil wire will not affect the airtightness of the cavity.
  • the cavities are arranged at intervals along the axial direction of the voice coil wire to ensure the strength of the voice coil wire.
  • the cavity includes a cavity portion, and the center of the cross section of the voice coil wire falls within the cavity portion.
  • the cavity 12 may include a cavity portion 121.
  • the center of the section of the voice coil wire is located in the area occupied by the cavity portion, that is, the cavity portion is arranged to surround the center of the voice coil wire.
  • This structure can improve the uniformity of electron distribution in the section of the voice coil wire, reduce the influence of the current skin effect, and improve the current conduction efficiency of the voice coil wire.
  • setting the center of the voice coil wire within the range enclosed by the cavity portion can improve the structural symmetry of the voice coil wire, which is beneficial to reduce the polarization of the corresponding voice coil.
  • the cavity includes two or more cavity portions, and two adjacent cavity portions are separated by the wire body.
  • the cavity 12 in the cross section of the voice coil wire 10, may include two or more cavity portions 121, and two adjacent cavity portions are separated by the wire body 11. This can not only reduce the influence of the current skin effect and improve the current conduction efficiency of the voice coil wire, but also avoid damage to the outer surface of the voice coil wire or damage to the sealing of the cavity caused by local defects.
  • the provision of the cavity can effectively reduce the weight of the voice coil, increase the amplitude of the voice coil, increase the vibration frequency range, and improve the vibration sensitivity of the voice coil.
  • the cavity 12 may include 7 cavity portions 121, one of which is located at the center of the section of the voice coil wire, and the remaining 6 cavity portions are arranged around it.
  • the coil wire has good symmetry, which can reduce or avoid the polarization caused by the asymmetry of the voice coil.
  • the distribution form of the multiple cavities on the cross section can be selected according to the actual situation, and the present invention does not limit this.
  • the cross-sectional shape of the cavity portion is a circle or a polygon.
  • the cross-sectional shape of the cavity portion 121 may be set to be circular, which facilitates the processing of the cavity portion.
  • the cavity portion can also be set in a polygonal shape. The present invention does not limit this.
  • the wire body adopts a single-layer or double-layer metal material.
  • the material of the wire body is copper or copper-clad aluminum.
  • the wire body 11 may use a single layer of metal material for current conduction.
  • the wire body can be made of metallic copper, which has the advantages of good conductivity, high strength, and low price, which can reduce the manufacturing cost of the voice coil.
  • the wire body can also be made of double-layer metal materials for current conduction.
  • the material of the wire body can be a copper-clad aluminum material, which has the advantages of good conductivity, light weight, small specific gravity, high strength, and low price. It can not only reduce the manufacturing cost of the voice coil, but also effectively improve the voice coil. The vibration performance of the sound device, thereby improving the acoustic performance of the sound device.
  • the wire body of the present invention can also be made of other metal materials or conductive non-metallic materials, which is not limited in the present invention.
  • the distance between the outermost side of the wire body and the outermost side of the cavity is 0.1 mm-0.5 mm.
  • the outermost side of the wire body in the present invention refers to the position where the wire body is farthest from the center of the cross section of the voice coil wire.
  • the outermost side of the cavity refers to the position where the cavity is farthest from the center of the cross section of the voice coil wire.
  • the distance between the outermost side of the wire body and the outermost side of the cavity is 0.1 mm-0.5 mm.
  • the distance refers to the thickness of the wire body.
  • the thickness of the wire body can also be 1/4 of the diameter of the voice coil wire, but this embodiment does not limit the thickness of the wire body of the present invention.
  • the distance between the outermost side of the wire body and the outermost side of the cavity is within 0.2mm-0.3mm.
  • the voice coil made of the voice coil wire has a smaller weight and can vibrate in a larger frequency range. At the same time, the achievable amplitude is larger, and the acoustic performance of the sounding device with the voice coil is better.
  • the present invention also provides a voice coil having the above-mentioned voice coil wire.
  • the voice coil is wound by using the voice coil wire provided by the present invention, and the structure of the voice coil can be referred to FIG. 3.
  • the structure of the voice coil may be a circular tube shape or a reciprocal shape, which is not limited in the present invention.
  • the present invention also provides a sound generating device, comprising: a vibrating component, the vibrating component includes a vibrating diaphragm and the voice coil described above, the vibrating diaphragm is connected to the voice coil; the vibrating component is configured to generate sound through vibration; A magnetic circuit assembly, the magnetic circuit assembly is configured to provide a magnetic field for the voice coil assembly; a housing assembly, the voice coil assembly and the magnetic circuit assembly are arranged in the housing assembly.
  • the sound generating device includes a vibrating component, and the vibrating component includes a combined diaphragm and the voice coil described above.
  • the diaphragm is connected to the voice coil.
  • the sound generating device further includes a magnetic circuit assembly configured to provide a magnetic field for the voice coil assembly.
  • the voice coil is suspended in a magnetic gap formed by the magnetic circuit assembly.
  • the sound emitting device further includes a housing assembly configured to accommodate the voice coil assembly and the housing assembly for protecting the voice coil assembly and the housing assembly.
  • the sound generating device of the present invention has small mass and good acoustic performance at the same time.
  • the vibration component of the present invention may not include a diaphragm, and the formed sound device is used for sound on the screen of an electronic product.
  • the present invention does not limit this.
  • the present invention can effectively reduce the weight of the voice coil wire by filling the cavity of the voice coil wire with insulating gas or setting the cavity in a vacuum state, thereby reducing the influence of the current skin effect on the current flow efficiency of the voice coil wire. Improve the utilization rate of the voice coil.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

本发明提供了一种用于发声装置的音圈线，包括：线本体和设置在所述线本体中的空腔，所述线本体被配置为通入电流信号；所述空腔为真空态或填充有绝缘气体。本发明还提供了一种音圈，所述音圈具有上述的音圈线。本发明还提供了一种发声装置。通过在音圈线的空腔内填充绝缘气体或将空腔设置为真空态，可以降低音圈线的重量，从而减小趋肤效应对音圈线的影响，提高音圈线的利用率。

Description

一种用于发声装置的音圈线、音圈及发声装置 技术领域
本发明涉及声学技术领域，更具体地，本发明涉及一种用于发声装置的音圈线、音圈及发声装置。
背景技术
扬声器是一种将电信号转换为声信号的基本发声单元。扬声器中设有振动系统和磁路系统，其中，振动系统包括音圈和振膜，音圈接通电流后，在磁路系统磁场作用下受力振动，音圈振动带动振膜振动发声。
音圈通常使用音圈线绕制而成。在现有设计中，音圈线大多采用金属线。其中，铜包铝线由于其高强度和低质量，在扬声器中应用广泛。但是在音圈线中存在电流趋肤效应，即通电后的导体内部，电流集中在导体外表的一薄层内，电流密度随距导体表面的距离的减小而增大，导体内部的实际电流密度较小。电流的趋肤效应导致音圈线中间部分的使用效率较低，从而降低了音圈线的整体的利用率。
因此针对电流趋肤效应的影响，有必要对现有音圈线的结构进行改进，以提高音圈线的利用率。
发明内容
本发明的一个目的是提供一种用于发声装置的音圈线，解决现有音圈线利用率低的问题。
本发明的另一个目的是提供一种具有上述音圈线的音圈。
本发明还有一个目的是提供一种具有上述音圈的发声装置。
一种音圈线，包括：线本体和设置在所述线本体中的空腔，所述线本体被配置为通入电流信号；所述空腔为真空态或填充有绝缘气体。
可选地，所述空腔沿所述音圈线的轴线方向设置。
可选地，在所述音圈线的截面上，所述空腔包括一个空腔部，所述音圈线的截面的中心落在所述空腔部内。
可选地，在所述音圈线的截面上，所述空腔包括两个或两个以上的空腔部，相邻两个所述空腔部被所述线本体间隔开。
可选地，所述空腔部的截面形状为圆形或多边形。
可选地，所述线本体采用单层或双层金属材料。
可选地，所述线本体的材料为铜或铜包铝。
可选地，相对于所述音圈线的中心，所述线本体的最外侧与所述空腔最外侧之间的距离为0.1mm-0.5mm。
一种音圈，所述音圈具有上述的音圈线。
一种发声装置，包括：
振动组件，所述振动组件包括振膜和上述的音圈，所述振膜连接于所述音圈；
磁路组件，所述磁路组件被配置为所述音圈组件提供磁场；
壳体组件，所述音圈组件和所述磁路组件设置在所述壳体组件内。
本发明所述技术方案的有益效果在于：通过在音圈线的空腔内填充绝缘气体或将空腔设置为真空态，可以降低音圈线的重量，从而减小趋肤效应对音圈线的影响，提高音圈线的利用率。
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为现有技术中音圈的结构示意图；
图2为现有技术中音圈线的结构示意图；
图3为根据本发明实施例的音圈的结构示意图；
图4为根据本发明实施例的用于发声装置的音圈线的结构示意图；
图5为根据本发明实施例的用于发声装置的音圈线的结构示意图；
图中标示如下：10-音圈线；11-线本体；12-空腔；121-空腔部。
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。
现有技术中的音圈通常如图1所示，音圈线10的结构如图2所示。即音圈线通常是实心结构，由于电流的趋肤效应，使得音圈线内部的利用率较低。因此针对现有技术存在的问题，有必要对音圈线的结构进行改进以提高音圈线的整体利用率。
本发明提出了一种音圈线，包括：线本体和设置在所述线本体中的空腔，所述线本体被配置为通入电流信号；所述空腔为真空态或填充有绝缘气体。
作为本发明的一个实施例，参照图4，音圈线10包括线本体11和空腔12。其中，空腔设置在线本体的内部。可选地，空腔可由线本体围合而成。在本发明中，线本体允许电流信号通入，即电子在线本体内沿音圈线的轴线方向定向移动。可选地，可将空腔内设置成真空态，即空腔的气体压力接近真空状态，此时空腔呈现出绝缘特性。或者可以在空腔填充绝缘气体， 此时的空腔亦呈现绝缘特性。可选地，绝缘气体可以空气、氮气、氩气等，本发明对此不作限制，本领域技术人员可以根据需要自行选择。
本发明中，空腔围合在线本体内部，线本体允许电流通过，在空腔内填充绝缘气体或将空腔设置成真空状态，该结构形式下既保证了音圈线的电信号导通特性，又减小了电流的趋肤效应对音圈线内部的导电效率的影响，通过将空腔设置成绝缘的真空态或填充绝缘气体，可以提高电流在音圈线截面内的流通均匀性，提高了音圈线的整体的导电效率。同时空腔的设置可以大大减小音圈线的重量，使用减重后的音圈线制成的音圈具有更小的重量，输入相同激励的条件下能够产生更大的振幅，且允许在更宽的频率范围内振动，可以明显提高音圈的振动灵敏度，从而提高使用该音圈的发声装置的声学性能。音圈重量的减小有利于实现发声装置的轻量化。
可选地，所述空腔沿所述音圈线的轴线方向设置。
作为本发明的一种实施方式，空腔12可设置成沿音圈线10的轴线方向延伸的连通体。将空腔设置成沿音圈线轴向的连通体，可以最大限度地减小音圈线的重量，提高相应的音圈的振幅和适用频率范围，提高音圈的振动灵敏度，从而优化发声装置的声学性能。另外，将空腔设置成沿音圈线轴向的连通体，可以较大程度地降低电流趋肤效应的影响，提高音圈线的电流流通效率。
作为本发明的另一种实施方式，空腔12可沿音圈线10的轴向均匀地间隔设置。可选地，每个空腔12位于音圈线的轴线方向的尺寸可大于其沿音圈线径向的尺寸，也可以小于或等于沿音圈线径向的尺寸，本发明对此不作限制。在这种情况下，音圈线断裂不会对空腔的密封性造成影响。另外，空腔沿音圈线的轴向间隔设置可以保证音圈线的强度。
可选地，在所述音圈线的截面上，所述空腔包括一个空腔部，所述音圈线的截面的中心落在所述空腔部内。
作为本发明的一个实施例，如图4所示，位于所述音圈线10的截面上，空腔12可以包括一个空腔部121。可选地，音圈线的截面中心位于空腔部所占的区域内，即空腔部包围音圈线的中心设置。该结构可以提高电子在音圈线截面内的分布均匀性，减小电流趋肤效应的影响，提高音圈线的电 流传导效率。同时将音圈线的中心设置在空腔部的包围的范围内可以提高音圈线的结构对称性，有利于减小对应音圈的偏振。
可选地，在所述音圈线的截面上，所述空腔包括两个或两个以上的空腔部，相邻两个所述空腔部被所述线本体间隔开。
作为本发明的一个实施例，在音圈线10的截面上，空腔12可以包括两个或两个以上的空腔部121，相邻的两个空腔部被线本体11间隔开。这样不仅可以减小电流趋肤效应的影响，提高音圈线的电流传导效率，而且可以避免音圈线外表面损伤或局部缺陷造成的空腔的密封性破坏。同时，空腔部的设置能够有效降低音圈线的重量，提高音圈的振幅及增大振动频率范围，提高音圈的振动灵敏度。作为一个示例，如图5所示，空腔12可以包括7个空腔部121，其中一个空腔部位于音圈线的截面中心，其余6个空腔部环绕其设置，该设置方式使音圈线具有较好的对称性，可以减小或避免音圈因结构不对称引起的偏振。当然，多个空腔部在截面上的分布形式可根据实际情况选择，本发明对此不作限制。
可选地，所述空腔部的截面形状为圆形或多边形。
作为本发明的一个实施例，空腔部121的截面形状可以设置成圆形，便于空腔部的加工。可选地，空腔部也可以设置成多边形。本发明对此不作限制。
可选地，所述线本体采用单层或双层金属材料。
可选地，所述线本体的材料为铜或铜包铝。
作为本发明的一个实施例，线本体11可以采用单层金属材料，用于电流导通。可选地，线本体的材料可以采用金属铜，其具有导电性好、强度高、价格便宜的优点，能够降低音圈的制造成本。或者，线本体也可以采用双层金属材料，用于电流导通。可选地，线本体的材料可以采用铜包铝材料，其具有导电性好、质量轻、比重小、强度高、价格便宜的优点，不仅可以降低音圈的制造成本，还可以有效改善音圈的振动性能，进而提高发声装置的声学性能。本发明的线本体也可以采用其他金属材料或导电的非金属材料，本发明对此不作限制。
可选地，相对于所述音圈线的中心，所述线本体的最外侧与所述空腔 最外侧之间的距离为0.1mm-0.5mm。
本发明中所述的线本体的最外侧是指线本体与音圈线的截面的中心相距最远的位置。同样地，空腔的最外侧是指空腔与音圈线的截面的中心相距最远的位置。可选地，相对于音圈线截面中心，线本体的最外侧与空腔的最外侧之间的距离为0.1mm-0.5mm。可选地，当线本体的截面形状为圆形时，且空腔只包括一个圆形的空腔部，该距离指的线本体的厚度。可选地，线本体的厚度也可以是音圈线直径的1/4，但这一实施例不对本发明的线本体的厚度构成限制。线本体的最外侧与空腔的最外侧之间的距离在0.2mm-0.3mm内，利用该音圈线制成的音圈具有较小的重量，音圈能够在更大的频率范围内振动，同时能够达到的振幅较大，具有该音圈的发声装置的声学性能较好。
本发明还提供了一种音圈，所述音圈具有上述的音圈线。可选地，音圈使用本发明提供的音圈线绕制而成，音圈的结构可参照图3。音圈的结构可以是圆管形，也可以是回字形，本发明对此不作限制。
本发明还提供了一种发声装置，包括：振动组件，所述振动组件包括振膜和上述的音圈，所述振膜连接于所述音圈；所述振动组件被配置为通过振动发声；磁路组件，所述磁路组件被配置为为所述音圈组件提供磁场；壳体组件，所述音圈组件和所述磁路组件设置在所述壳体组件内。
具体地，发声装置包括振动组件，振动组件包括结合在一起的振膜和上文所述的音圈。可选地，振膜连接在音圈上。发声装置还包括磁路组件，磁路组件被配置为为音圈组件提供磁场。可选地，音圈悬于所述磁路组件形成的磁间隙中。发声装置还包括壳体组件，壳体组件被配置为容纳所述音圈组件和壳体组件，用于保护音圈组件和壳体组件。本发明所述的发声装置具有较小的质量，同时具备良好声学性能。
当然，本发明的振动组件也可以不包括振膜，形成的发声装置用于电子产品的屏幕发声。本发明对此不作限制。
本发明通过在音圈线的空腔内填充绝缘气体或将空腔设置为真空态，可以有效降低音圈线的重量，从而减小电流趋肤效应对音圈线内部电流流通效率的影响，提高音圈线的利用率。
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. 一种用于发声装置的音圈线，其特征在于，包括：
    线本体和设置在所述线本体中的空腔，所述线本体被配置为通入电流信号；
    所述空腔为真空态或填充有绝缘气体。
  2. 根据权利要求1所述用于发声装置的音圈线，其特征在于，所述空腔沿所述音圈线的轴线方向设置。
  3. 根据权利要求1所述用于发声装置的音圈线，其特征在于，在所述音圈线的截面上，所述空腔包括一个空腔部，所述音圈线的截面的中心落在所述空腔部内。
  4. 根据权利要求1所述用于发声装置的音圈线，其特征在于，在所述音圈线的截面上，所述空腔包括两个或两个以上的空腔部，相邻两个所述空腔部被所述线本体间隔开。
  5. 根据权利要求3或4任一所述用于发声装置的音圈线，其特征在于，所述空腔部的截面形状为圆形或多边形。
  6. 根据权利要求1所述用于发声装置的音圈线，其特征在于，所述线本体采用单层或双层金属材料。
  7. 根据权利要求6所述用于发声装置的音圈线，其特征在于，所述线本体的材料为铜或铜包铝。
  8. 根据权利要求1所述用于发声装置的音圈线，其特征在于，相对于所述音圈线的中心，所述线本体的最外侧与所述空腔最外侧之间的距离 为0.1mm-0.5mm。
  9. 一种音圈，其特征在于，所述音圈具有如权利要求1-8任一所述的用于发声装置的音圈线。
  10. 一种发声装置，其特征在于，包括：
    振动组件，所述振动组件包括振膜和权利要求9所述的音圈，所述振膜连接于所述音圈；
    磁路组件，所述磁路组件被配置为所述音圈组件提供磁场；
    壳体组件，所述音圈组件和所述磁路组件设置在所述壳体组件内。
PCT/CN2020/126909 2019-12-06 2020-11-06 一种用于发声装置的音圈线、音圈及发声装置 WO2021109790A1 (zh)

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