WO2024114435A1 - Inductor, and loudspeaker assembly - Google Patents

Abstract

The present invention belongs to the field of power devices. Disclosed are an inductor, and a loudspeaker assembly. The inductor comprises a first coil, a second coil, an iron core member and a current regulation member. The first coil is wound on the iron core member, and the first coil and the iron core member have a first contact area; the second coil is wound on the iron core member, and the second coil and the iron core member have a second contact area; and the second contact area is smaller than the first contact area. The two ends of the current regulation member are respectively connected to the two ends of the second coil, and the current regulation member is used for regulating the magnitude of the current of the second coil. By changing the magnitude of the current of the second coil by means of the current regulation member, the present invention fulfills the purpose of regulating an inductance of the inductor, thereby maximizing energy utilization. In addition, the inductance generated by the second coil is always smaller than that of the first coil, such that the inductor is a fractional-turn inductor, and has all advantages of fractional turns.

Description

电感器及扬声器组件Inductors and speaker components 技术领域Technical Field

本发明涉及电力设备领域，特别涉及电感器及扬声器组件。The present invention relates to the field of electric power equipment, and in particular to an inductor and a speaker assembly.

背景技术Background technique

电感器是一种将电能转化为磁能，并对磁能进行存储的电子部件，通常用于电力***中。然而，在电力***中，随着非线性负载的大量接入，会出现电压波动、谐波污染等问题，所以，有必要对电感器的电感量进行调节。An inductor is an electronic component that converts electrical energy into magnetic energy and stores the magnetic energy. It is usually used in power systems. However, in power systems, with the large number of nonlinear loads connected, problems such as voltage fluctuations and harmonic pollution will occur. Therefore, it is necessary to adjust the inductance of the inductor.

相关技术中，电感器包括：铁芯、缠绕在铁芯上的第一线圈和第二线圈。其中，第一线圈用于在接入工作电路后，使第二线圈产生感应电流。当需要调节电感器的电感量时，只需向第二线圈中通入直流电，并改变直流电的大小，即可改变铁芯的饱和程度，进而改变第一线圈的电感量大小，完成对电感器电感量的调节。In the related art, the inductor includes: an iron core, a first coil wound on the iron core, and a second coil. The first coil is used to generate an induced current in the second coil after being connected to the working circuit. When the inductance of the inductor needs to be adjusted, it is only necessary to pass direct current into the second coil and change the magnitude of the direct current to change the saturation degree of the iron core, thereby changing the inductance of the first coil and completing the adjustment of the inductance of the inductor.

然而，相关技术在调节电感器电感量的大小时，需要向第二线圈通直流电，不断地改变直流电的大小，操作复杂，且会造成直流电的浪费。However, in the related art, when adjusting the inductance of the inductor, direct current needs to be passed to the second coil, and the size of the direct current needs to be continuously changed, which is complicated to operate and will cause waste of direct current.

发明内容Summary of the invention

鉴于此，本发明提供一种电感器及扬声器组件，能够解决上述技术问题。In view of this, the present invention provides an inductor and a speaker assembly, which can solve the above technical problems.

具体而言，包括以下的技术方案：Specifically, the following technical solutions are included:

一方面，提供了一种电感器，所述电感器包括：第一线圈、第二线圈、铁芯件、电流调节件；In one aspect, an inductor is provided, the inductor comprising: a first coil, a second coil, an iron core member, and a current regulating member;

所述第一线圈缠绕于所述铁芯件上，且所述第一线圈与所述铁芯件具有第一接触面积；The first coil is wound on the core member, and the first coil and the core member have a first contact area;

所述第二线圈缠绕于所述铁芯件上，且所述第二线圈与所述铁芯件具有第二接触面积；其中，所述第二接触面积小于所述第一接触面积；The second coil is wound on the core piece, and the second coil and the core piece have a second contact area; wherein the second contact area is smaller than the first contact area;

所述电流调节件的两端分别与所述第二线圈的两端连接，所述电流调节件用于调节所述第二线圈的电流大小。Two ends of the current regulating member are respectively connected to two ends of the second coil, and the current regulating member is used to regulate the current of the second coil.

在一些可能的实现方式中，所述铁芯件具有第一缠绕部和第二缠绕部，所 述第一缠绕部用于缠绕所述第一线圈，所述第二缠绕部用于缠绕所述第二线圈；In some possible implementations, the core member has a first winding portion and a second winding portion. The first winding portion is used for winding the first coil, and the second winding portion is used for winding the second coil;

所述第一缠绕部的横截面积大于所述第二缠绕部的横截面积。The cross-sectional area of the first winding portion is greater than the cross-sectional area of the second winding portion.

在一些可能的实现方式中，所述铁芯件包括：第一铁芯和第二铁芯；In some possible implementations, the core member includes: a first core and a second core;

所述第一铁芯套设于所述第二铁芯的外部，或者，所述第一铁芯与所述第二铁芯并排布置；The first iron core is sleeved on the outside of the second iron core, or the first iron core and the second iron core are arranged side by side;

所述第一线圈同时缠绕于所述第一铁芯和所述第二铁芯上；The first coil is wound around the first iron core and the second iron core at the same time;

所述第二线圈缠绕于所述第二铁芯上；The second coil is wound around the second iron core;

所述第一线圈与所述第二线圈的匝数相同或不同。The number of turns of the first coil and the second coil is the same or different.

示例地，所述第一铁芯和所述第二铁芯均为圆环形结构或者均为矩形环结构。For example, the first iron core and the second iron core are both circular ring structures or rectangular ring structures.

在一些可能的实现方式中，所述铁芯件包括：铁芯本体和通孔，所述通孔贯穿所述铁芯本体的两端；In some possible implementations, the core member includes: a core body and a through hole, wherein the through hole passes through two ends of the core body;

所述铁芯本体的壁上具有缺口，所述缺口使得所述铁芯本体分隔为相互连接的主体部分和缺口部分；A notch is provided on the wall of the core body, and the notch separates the core body into a main body part and a notch part that are connected to each other;

所述主体部分的高度等于所述铁芯本体的高度，所述第一线圈缠绕于所述主体部分上；The height of the main body portion is equal to the height of the core body, and the first coil is wound around the main body portion;

所述缺口部分的高度小于所述铁芯本体的高度，所述第二线圈缠绕于所述缺口部分上；The height of the notch portion is smaller than the height of the core body, and the second coil is wound around the notch portion;

所述第一线圈与所述第二线圈的匝数相同或不同。The number of turns of the first coil and the second coil is the same or different.

示例地，所述铁芯本体为圆环形结构或者矩形环结构。For example, the core body is a circular ring structure or a rectangular ring structure.

在一些可能的实现方式中，所述铁芯件包括：铁芯本体和通孔；In some possible implementations, the core member includes: a core body and a through hole;

所述通孔贯穿所述铁芯本体的两端；The through hole passes through both ends of the core body;

所述铁芯本体被所述通孔分隔成第一宽度部分和第二宽度部分，所述第一宽度部分的径向宽度大于所述第二宽度部分的径向宽度；The core body is divided into a first width portion and a second width portion by the through hole, and the radial width of the first width portion is greater than the radial width of the second width portion;

所述第一线圈缠绕于所述第一宽度部分上，所述第二宽度部分缠绕于所述第二宽度部分上；The first coil is wound around the first width portion, and the second width portion is wound around the second width portion;

所述第一线圈与所述第二线圈的匝数相同或不同。The number of turns of the first coil and the second coil is the same or different.

在一些可能的实现方式中，所述铁芯本体为圆环形结构或者矩形环结构；相应地，所述通孔圆形结构或者矩形结构。In some possible implementations, the core body is a circular ring structure or a rectangular ring structure; correspondingly, the through hole is a circular structure or a rectangular structure.

在一些可能的实现方式中，所述电流调节件为IGBT整流电路。In some possible implementations, the current regulator is an IGBT rectifier circuit.

在一些可能的实现方式中，所述IGBT整流电路包括：二极管整流桥、电 感元件、电容元件和IGBT晶体管；In some possible implementations, the IGBT rectifier circuit includes: a diode rectifier bridge, Inductive elements, capacitive elements and IGBT transistors;

所述二极管整流桥由四个二极管两两对接而成，使得所述二极管整流桥具有四个接点；The diode rectifier bridge is formed by connecting four diodes in pairs, so that the diode rectifier bridge has four contacts;

其中一对相对的所述接点、所述电感元件、所述IGBT晶体管通过导线依次首尾连接，所述电容元件并联于所述二极管整流桥和所述电感元件之间；A pair of opposite contacts, the inductor element, and the IGBT transistor are connected end to end in sequence through a wire, and the capacitor element is connected in parallel between the diode rectifier bridge and the inductor element;

另一对相对的所述接点分别与所述第二线圈的两端连接。Another pair of opposite contacts are respectively connected to two ends of the second coil.

在一些可能的实现方式中，所述电流调节件为可变电阻器。In some possible implementations, the current regulating element is a variable resistor.

另一方面，本发明实施例还提供了一种扬声器组件，所述扬声器组件包括：第一扬声器、第二扬声器、第三扬声器、第一电感器、第二电感器和第三电感器，其中，所述第一电感器、所述第二电感器和所述第三电感器分别如上述任一所述；On the other hand, an embodiment of the present invention further provides a speaker assembly, the speaker assembly comprising: a first speaker, a second speaker, a third speaker, a first inductor, a second inductor and a third inductor, wherein the first inductor, the second inductor and the third inductor are respectively as described above;

所述第一扬声器的负极端与功放设备的负极端电性连接，所述第一扬声器的正极端与功放设备的正极端电性连接，所述第一电感器连接于所述第一扬声器和功放设备之间的回路中；The negative terminal of the first speaker is electrically connected to the negative terminal of the power amplifier device, the positive terminal of the first speaker is electrically connected to the positive terminal of the power amplifier device, and the first inductor is connected in a loop between the first speaker and the power amplifier device;

所述第二扬声器的负极端与功放设备的正极端电性连接，所述第二扬声器的正极端与功放设备的负极端电性连接，所述第二电感器连接于所述第二扬声器和功放设备之间的回路中；The negative terminal of the second speaker is electrically connected to the positive terminal of the power amplifier device, the positive terminal of the second speaker is electrically connected to the negative terminal of the power amplifier device, and the second inductor is connected in a loop between the second speaker and the power amplifier device;

所述第三扬声器的负极端与功放设备的负极端电性连接，所述第三扬声器的正极端与功放设备的正极端电性连接，所述第三电感器连接于第三扬声器和功放设备之间的回路中。The negative terminal of the third speaker is electrically connected to the negative terminal of the power amplifier device, the positive terminal of the third speaker is electrically connected to the positive terminal of the power amplifier device, and the third inductor is connected in a loop between the third speaker and the power amplifier device.

在一些可能的实现方式中，所述第二扬声器中高频扬声器或者全频扬声器。In some possible implementations, the second speaker is a high-frequency speaker or a full-range speaker.

本发明实施例提供的技术方案的有益效果至少包括：The beneficial effects of the technical solution provided by the embodiment of the present invention include at least:

本发明实施例提供的电感器，将第一线圈作为工作线圈，用于通交流电，将第二线圈作为控制线圈，用于通直流电。在应用时，使第一线圈的两端接入负载所在的工作电路，通过工作电路向第一线圈通入交流电，这样，第二线圈能够产生感应电流，进而使得铁芯件产生一定的磁通量。当需要改变电感器的电感时，只需要调节电流调节件，利用电流调节件来改变第二线圈的电流大小，进而可以改变铁芯件的磁通量的大小，从而达到改变电感器的电感量大小的目的。该种结构的电感器，通过电流调节件来调节并改变第二线圈的电流大小， 其操作简单易控制，且不会造成直流电的浪费，使得能源利用最大化。The inductor provided by the embodiment of the present invention uses the first coil as a working coil for passing alternating current, and uses the second coil as a control coil for passing direct current. When in use, the two ends of the first coil are connected to the working circuit where the load is located, and alternating current is passed to the first coil through the working circuit. In this way, the second coil can generate an induced current, thereby causing the iron core member to generate a certain magnetic flux. When it is necessary to change the inductance of the inductor, it is only necessary to adjust the current regulating component, and use the current regulating component to change the current size of the second coil, thereby changing the size of the magnetic flux of the iron core member, thereby achieving the purpose of changing the inductance size of the inductor. The inductor of this structure adjusts and changes the current size of the second coil through the current regulating component. The operation is simple and easy to control, and no waste of direct current is caused, thus maximizing energy utilization.

另外，本发明实施例提供的电感器，使第一线圈与铁芯件的第一接触面积大于第二线圈与铁芯件的第二接触面积，这使得第二线圈所产生的电感量始终小于第一线圈的电感量，使得该电感器为分数匝电感器，具有分数匝的所有优点。In addition, the inductor provided by the embodiment of the present invention makes the first contact area between the first coil and the iron core member larger than the second contact area between the second coil and the iron core member, so that the inductance generated by the second coil is always smaller than the inductance of the first coil, making the inductor a fractional turn inductor with all the advantages of fractional turns.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

图1为本发明实施例提供的一示例性电感量可调的电感器的结构示意图；FIG1 is a schematic structural diagram of an exemplary inductor with adjustable inductance provided by an embodiment of the present invention;

图2为本发明实施例提供的第一种类型的铁芯件的结构示意图；FIG2 is a schematic structural diagram of a first type of core member provided in an embodiment of the present invention;

图3为本发明实施例提供的第二种类型的铁芯件的结构示意图；FIG3 is a schematic structural diagram of a second type of core member provided by an embodiment of the present invention;

图4为本发明实施例提供的第三种类型的铁芯件的结构示意图；FIG4 is a schematic structural diagram of a third type of core member provided in an embodiment of the present invention;

图5为本发明实施例提供的第四种类型的铁芯件的结构示意图；FIG5 is a schematic structural diagram of a fourth type of core member provided in an embodiment of the present invention;

图6为本发明实施例提供的另一示例性电感量可调的电感器的结构示意图；FIG6 is a schematic structural diagram of another exemplary inductor with adjustable inductance provided by an embodiment of the present invention;

图7为本发明实施例提供的一示例性扬声器组件的结构示意图。FIG. 7 is a schematic structural diagram of an exemplary speaker assembly provided in an embodiment of the present invention.

附图标记分别表示：
1-第一线圈，2-第二线圈，
3-铁芯件，
31-第一铁芯，32-第二铁芯，
33-铁芯本体，34-通孔，35-缺口，
331-主体部分，332-缺口部分，
333-第一宽度部分，334-第二宽度部分，
4-电流调节件，
41-二极管整流桥，42-电感元件，
43-电容元件，44-IGBT晶体管，45-可变电阻器，
001-第一扬声器，002-第二扬声器，003-第三扬声器，
100-第一电感器，200-第二电感器，300-第三电感器。 The reference numerals represent:
1-first coil, 2-second coil,
3- Core parts,
31-first iron core, 32-second iron core,
33- core body, 34- through hole, 35- notch,
331-main part, 332-notch part,
333- first width portion, 334- second width portion,
4- Current regulator,
41- diode rectifier bridge, 42- inductor element,
43-capacitor element, 44-IGBT transistor, 45-variable resistor,
001-first speaker, 002-second speaker, 003-third speaker,
100- a first inductor, 200- a second inductor, 300- a third inductor.

具体实施方式Detailed ways

为使本发明的技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。To make the technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

本发明实施例的目的是提供一种电感量可调的电感器，如附图1所示，该电感器包括：第一线圈1、第二线圈2、铁芯件3、电流调节件4。The purpose of the embodiment of the present invention is to provide an inductor with adjustable inductance. As shown in FIG1 , the inductor includes: a first coil 1 , a second coil 2 , an iron core 3 , and a current regulating member 4 .

其中，第一线圈1缠绕于铁芯件3上，且第一线圈1与铁芯件3具有第一接触面积。The first coil 1 is wound on the core member 3 , and the first coil 1 and the core member 3 have a first contact area.

第二线圈2缠绕于铁芯件3上，且第二线圈2与铁芯件3具有第二接触面积；其中，第二接触面积小于第一接触面积。The second coil 2 is wound on the iron core 3 , and the second coil 2 and the iron core 3 have a second contact area; wherein the second contact area is smaller than the first contact area.

电流调节件4的两端分别与第二线圈2的两端连接，电流调节件4用于调节第二线圈2的电流大小。Two ends of the current regulating member 4 are respectively connected to two ends of the second coil 2 , and the current regulating member 4 is used to regulate the current of the second coil 2 .

本发明实施例提供的电感器，将第一线圈1作为工作线圈，用于通交流电，将第二线圈2作为控制线圈，用于通直流电。在应用时，使第一线圈1的两端接入负载所在的工作电路，通过工作电路向第一线圈1通入交流电，这样，第二线圈2能够产生感应电流，进而使得铁芯件3产生一定的磁通量。当需要改变电感器的电感时，只需要调节电流调节件4，利用电流调节件4来改变第二线圈2的电流大小，进而可以改变铁芯件3的磁通量的大小，从而达到改变电感器的电感量大小的目的。该种结构的电感器，通过电流调节件4来调节并改变第二线圈2的电流大小，其操作简单易控制，且不会造成直流电的浪费，使得能源利用最大化。The inductor provided by the embodiment of the present invention uses the first coil 1 as a working coil for passing alternating current, and uses the second coil 2 as a control coil for passing direct current. When in use, the two ends of the first coil 1 are connected to the working circuit where the load is located, and alternating current is passed to the first coil 1 through the working circuit, so that the second coil 2 can generate an induced current, thereby causing the core member 3 to generate a certain magnetic flux. When it is necessary to change the inductance of the inductor, it is only necessary to adjust the current regulating member 4, and use the current regulating member 4 to change the current size of the second coil 2, thereby changing the size of the magnetic flux of the core member 3, thereby achieving the purpose of changing the inductance size of the inductor. The inductor of this structure adjusts and changes the current size of the second coil 2 through the current regulating member 4, and its operation is simple and easy to control, and does not cause waste of direct current, so as to maximize energy utilization.

另外，本发明实施例提供的电感器，使第一线圈1与铁芯件3的第一接触面积大于第二线圈2与铁芯件3的第二接触面积，这使得第二线圈2所产生的电感量始终小于第一线圈1的电感量，使得该电感器为分数匝电感器，具有分数匝的所有优点。In addition, the inductor provided in the embodiment of the present invention makes the first contact area between the first coil 1 and the core member 3 larger than the second contact area between the second coil 2 and the core member 3, so that the inductance generated by the second coil 2 is always smaller than the inductance of the first coil 1, making the inductor a fractional turn inductor with all the advantages of fractional turns.

本发明实施例中所涉及的线圈与铁芯件3的第一接触面积和第二接触面积均指的是所有匝数的线圈与铁芯件3之间的总的接触面积，在一些可能的示例中，第二线圈2与铁芯件3的第二接触面积为第一线圈1与铁芯件3的第一接触面积的1/6-5/6等。The first contact area and the second contact area between the coil and the core member 3 involved in the embodiments of the present invention refer to the total contact area between the coils of all turns and the core member 3. In some possible examples, the second contact area between the second coil 2 and the core member 3 is 1/6-5/6 of the first contact area between the first coil 1 and the core member 3.

其中，影响线圈与铁芯件3之间总的接触面积的因素包括但不限于以下：线圈的匝数、每一匝线圈与铁芯件3的接触面积、铁芯件3的横截面积等。 Among them, factors affecting the total contact area between the coil and the core member 3 include but are not limited to the following: the number of turns of the coil, the contact area between each turn of the coil and the core member 3, the cross-sectional area of the core member 3, etc.

在一些示例中，铁芯件3具有第一缠绕部和第二缠绕部，第一缠绕部用于缠绕第一线圈1，第二缠绕部用于缠绕第二线圈2；第一缠绕部的横截面积大于第二缠绕部的横截面积。In some examples, the core member 3 has a first winding portion and a second winding portion, the first winding portion is used to wind the first coil 1 , and the second winding portion is used to wind the second coil 2 ; the cross-sectional area of the first winding portion is greater than the cross-sectional area of the second winding portion.

通过使第一缠绕部的横截面积大于第二缠绕部的横截面积，从而使得第一线圈1与铁芯件3的第一接触面积大于第二线圈2与铁芯件3的第二接触面积。By making the cross-sectional area of the first winding portion larger than the cross-sectional area of the second winding portion, a first contact area between the first coil 1 and the core member 3 is made larger than a second contact area between the second coil 2 and the core member 3 .

在一些示例中，当线圈的匝数相同时，每一匝线圈与铁芯件3的接触面积越大，则所有匝数的线圈与铁芯件3的总接触面积越大。In some examples, when the number of turns of the coil is the same, the larger the contact area between each turn of the coil and the core member 3 , the larger the total contact area between all turns of the coil and the core member 3 .

在一些示例中，当每一匝线圈与铁芯件3的接触面积相同时，线圈的匝数越多，则所有匝数的线圈与铁芯件3的总接触面积越大。In some examples, when the contact area between each turn of the coil and the core member 3 is the same, the more turns of the coil, the larger the total contact area between all turns of the coil and the core member 3 .

以下就如何对铁芯件3的结构进行设计以实现第二接触面积小于第一接触面积进行示例性说明：The following is an exemplary description of how to design the structure of the core member 3 to achieve that the second contact area is smaller than the first contact area:

在一些可能的实现方式(1)中，如附图2或者附图3所示，本发明实施例提供的铁芯件3包括：第一铁芯31和第二铁芯32，其中，第一铁芯31套设于第二铁芯32的外部，或者，第一铁芯31与第二铁芯32并排布置。In some possible implementations (1), as shown in FIG. 2 or FIG. 3 , the core member 3 provided in the embodiment of the present invention includes: a first core 31 and a second core 32 , wherein the first core 31 is sleeved on the outside of the second core 32 , or the first core 31 and the second core 32 are arranged side by side.

第一线圈1同时缠绕于第一铁芯31和第二铁芯32上；第二线圈2缠绕于第二铁芯32上。The first coil 1 is wound around the first iron core 31 and the second iron core 32 at the same time; the second coil 2 is wound around the second iron core 32 .

并且，第一线圈1与第二线圈2的匝数相同或者不同，例如，可以使第一线圈1与第二线圈2的匝数相同。Furthermore, the number of turns of the first coil 1 and the second coil 2 may be the same or different. For example, the number of turns of the first coil 1 and the second coil 2 may be the same.

在上述实现方式(1)中，第一铁芯31和第二铁芯32均具有贯穿其两端的通孔34，第一线圈1和第二线圈2绕过该通孔34缠绕于相应的铁芯上。In the above implementation (1), the first iron core 31 and the second iron core 32 both have through holes 34 running through both ends thereof, and the first coil 1 and the second coil 2 bypass the through holes 34 and are wound around the corresponding iron cores.

示例性地，如附图2所示，当第一铁芯31套设于第二铁芯32的外部时，第一铁芯31的直径势必要大于第二铁芯32的直径，此时，第一铁芯31作为外铁芯，第二铁芯32作为内铁芯，并且，第一铁芯31和第二铁芯32的中心轴可以重合。Exemplarily, as shown in FIG. 2 , when the first core 31 is sleeved on the outside of the second core 32, the diameter of the first core 31 must be larger than the diameter of the second core 32. At this time, the first core 31 serves as the outer core, the second core 32 serves as the inner core, and the central axes of the first core 31 and the second core 32 can coincide.

示例性地，如附图3所示，当第一铁芯31与第二铁芯32并排设置时，第一铁芯31的直径可以大于第二铁芯32的直径，也可以等于第二铁芯32的直径，还可以小于第二铁芯32的直径，并且，第一铁芯31和第二铁芯32的壁可以相接触。Exemplarily, as shown in FIG3 , when the first core 31 and the second core 32 are arranged side by side, the diameter of the first core 31 may be greater than the diameter of the second core 32, may be equal to the diameter of the second core 32, or may be smaller than the diameter of the second core 32, and the walls of the first core 31 and the second core 32 may be in contact with each other.

在该实现方式中，可以根据第一线圈1和第二线圈2的电感量的比例大小以及实际电感需求量来适应性设计第一线圈1和第二线圈2的匝数，以及第一铁芯31与第二铁芯32的尺寸比例。 In this implementation, the number of turns of the first coil 1 and the second coil 2, and the size ratio of the first core 31 and the second core 32 can be adaptively designed according to the ratio of the inductance of the first coil 1 and the second coil 2 and the actual inductance requirement.

示例地，第一铁芯31与第二铁芯32的高度相同，并且，以第一铁芯31套设于第二铁芯32的外部举例来说，可以使第一铁芯31的径向厚度为第二铁芯32的径向厚度的2倍-10倍等。另外，第一铁芯31的内壁与第二铁芯32的外壁之间可以具有环形间隙，该环形间隙的径向尺寸为1mm-20mm等。For example, the first core 31 and the second core 32 have the same height, and, for example, the first core 31 is sleeved outside the second core 32, the radial thickness of the first core 31 can be 2 to 10 times the radial thickness of the second core 32. In addition, an annular gap can be provided between the inner wall of the first core 31 and the outer wall of the second core 32, and the radial dimension of the annular gap is 1 mm to 20 mm.

当第一铁芯31套设于第二铁芯32的外部时，由于第一线圈1同时缠绕于第一铁芯31和第二铁芯32上，而第二线圈2仅缠绕于第二铁芯32上，当第一线圈1和第二线圈2匝数相同时，第一线圈1与铁芯件3的第一接触面积势必要大于第二线圈2与铁芯件3的第二接触面积。When the first iron core 31 is sleeved on the outside of the second iron core 32, since the first coil 1 is wound on the first iron core 31 and the second iron core 32 at the same time, and the second coil 2 is only wound on the second iron core 32, when the number of turns of the first coil 1 and the second coil 2 is the same, the first contact area between the first coil 1 and the iron core member 3 is bound to be greater than the second contact area between the second coil 2 and the iron core member 3.

当第一铁芯31与第二铁芯32并排设置时，由于第一线圈1同时缠绕于第一铁芯31和第二铁芯32上，而第二线圈2仅缠绕于第二铁芯32上，当第一线圈1和第二线圈2匝数相同时，第一线圈1与铁芯件3的第一接触面积势必要大于第二线圈2与铁芯件3的第二接触面积。When the first iron core 31 and the second iron core 32 are arranged side by side, since the first coil 1 is wound on the first iron core 31 and the second iron core 32 at the same time, and the second coil 2 is only wound on the second iron core 32, when the first coil 1 and the second coil 2 have the same number of turns, the first contact area between the first coil 1 and the iron core member 3 is bound to be greater than the second contact area between the second coil 2 and the iron core member 3.

在一些可能的实现方式中，第一铁芯31和第二铁芯32均为圆环形结构，或者，第一铁芯31和第二铁芯32均为矩形环结构，附图2和附图3仅示例了圆环形结构的铁芯。In some possible implementations, the first core 31 and the second core 32 are both circular ring structures, or the first core 31 and the second core 32 are both rectangular ring structures. FIG. 2 and FIG. 3 only illustrate cores with circular ring structures.

在一些可能的实现方式(2)中，如附图4所示，铁芯件3包括：铁芯本体33和通孔34，其中，通孔34贯穿铁芯本体33的两端。In some possible implementations (2), as shown in FIG. 4 , the core member 3 includes: a core body 33 and a through hole 34 , wherein the through hole 34 passes through both ends of the core body 33 .

铁芯本体33的壁上具有缺口35，该缺口35使得铁芯本体33分隔为相互连接的主体部分331和缺口部分332。A notch 35 is formed on the wall of the core body 33 , and the notch 35 separates the core body 33 into a main body portion 331 and a notch portion 332 that are connected to each other.

主体部分331的高度等于铁芯本体33的高度，第一线圈1缠绕于主体部分331上。The height of the main body 331 is equal to the height of the core body 33 , and the first coil 1 is wound around the main body 331 .

缺口部分332的高度小于铁芯本体33的高度，第二线圈2缠绕于缺口部分332上。The height of the notch portion 332 is smaller than the height of the core body 33 , and the second coil 2 is wound around the notch portion 332 .

第一线圈1与第二线圈2的匝数相同或者不同，例如，可以使第一线圈1与第二线圈2的匝数相同。The number of turns of the first coil 1 and the second coil 2 may be the same or different. For example, the number of turns of the first coil 1 and the second coil 2 may be the same.

铁芯本体33的壁上设置的缺口35与通孔34是相连通的，缺口35位于铁芯本体33的壁上任意位置处均可，举例来说，如附图4所示，可以使缺口35自铁芯本体的一端沿铁芯本体的轴向方向延伸至铁芯本体的设定位置，这样，在缺口35的一侧处形成一处缺口部分332，该缺口部分332可以认为是铁芯本体33的相应的壁上除去缺口处剩余的部分。The notch 35 provided on the wall of the core body 33 is connected to the through hole 34, and the notch 35 can be located at any position on the wall of the core body 33. For example, as shown in FIG. 4 , the notch 35 can be extended from one end of the core body along the axial direction of the core body to a set position of the core body, so that a notch portion 332 is formed on one side of the notch 35, and the notch portion 332 can be considered as the remaining portion on the corresponding wall of the core body 33 except for the notch.

或者，还可以使缺口35位于铁芯本体33的壁上中间位置，即，缺口35 并不贯通铁芯本体33的任一端，这样，在缺口35的一侧处形成相对的两个缺口部分332。Alternatively, the notch 35 may be located in the middle of the wall of the core body 33, that is, the notch 35 The core body 33 does not penetrate through either end thereof, so that two opposing notch portions 332 are formed at one side of the notch 35 .

对于缺口的形状，在一些示例中，使缺口35的投影形状可以是矩形，也可以是梯形，这样，缺口35的与第二线圈2接触的端面呈直线，利于提供更多的缠绕面积。As for the shape of the notch, in some examples, the projection shape of the notch 35 can be a rectangle or a trapezoid, so that the end surface of the notch 35 in contact with the second coil 2 is a straight line, which is conducive to providing more winding area.

可以理解的是，上述缺口部分332的一端与缺口35连接，另一端延伸至铁芯本体33的一端处。It can be understood that one end of the notch portion 332 is connected to the notch 35 , and the other end extends to one end of the core body 33 .

在该实现方式(2)中，由于缺口部分332的高度小于主体部分331的高度，这样，当第一线圈1和第二线圈2分别沿高度方向缠绕时，第一线圈1与高度较低的缺口部分332的第二接触面积要小于第二线圈2与高度较高的主体部分331的第一接触面积。In the implementation (2), since the height of the notch portion 332 is smaller than the height of the main portion 331, when the first coil 1 and the second coil 2 are respectively wound along the height direction, the second contact area between the first coil 1 and the notch portion 332 with a lower height is smaller than the first contact area between the second coil 2 and the main portion 331 with a higher height.

在该实现方式中，可以根据第一线圈1和第二线圈2的电感量的比例大小以及实际电感需求量来适应性设计第一线圈1和第二线圈2的匝数，以及第一铁芯31与第二铁芯32的尺寸比例。In this implementation, the number of turns of the first coil 1 and the second coil 2 and the size ratio of the first core 31 and the second core 32 can be adaptively designed according to the ratio of the inductance of the first coil 1 and the second coil 2 and the actual inductance requirement.

对于上述实施方式(2)，铁芯本体33为圆环形结构或者矩形环结构均可以实现上述效果。For the above-mentioned embodiment (2), the above-mentioned effect can be achieved when the core body 33 is a circular ring structure or a rectangular ring structure.

在一些可能的实现方式(3)中，如附图5所示，铁芯件3包括：铁芯本体33和通孔34，通孔34贯穿铁芯本体33的两端。In some possible implementations (3), as shown in FIG. 5 , the core member 3 includes: a core body 33 and a through hole 34 , wherein the through hole 34 passes through both ends of the core body 33 .

该铁芯本体33被通孔34分隔成第一宽度部分333和第二宽度部分334，其中，第一宽度部分333的径向宽度大于第二宽度部分334的径向宽度，第一线圈1缠绕于第一宽度部分333上，第二宽度部分334缠绕于第二宽度部分334上；第一线圈1与第二线圈2的匝数相同或者不同，例如，可以使第一线圈1与第二线圈2的匝数相同。The core body 33 is divided into a first width portion 333 and a second width portion 334 by a through hole 34, wherein the radial width of the first width portion 333 is greater than the radial width of the second width portion 334, the first coil 1 is wound on the first width portion 333, and the second width portion 334 is wound on the second width portion 334; the number of turns of the first coil 1 and the second coil 2 are the same or different, for example, the number of turns of the first coil 1 and the second coil 2 can be the same.

上述涉及的宽度，实际上也是径向尺寸，通过将通孔34的位置不居中地设置于铁芯本体33上，这样，铁芯本体33被通孔34分隔成不等宽的多个部分，这样，当第一线圈1缠绕于宽度更大的第一宽度部分333上时，第一线圈1与铁芯本体33的第一接触面积更大，而当第而线圈缠绕于宽度更小的第二宽度部分334上时，第二线圈2与铁芯本体33的第二接触面积更大。The width mentioned above is actually also a radial dimension. By setting the through hole 34 not in the center on the core body 33, the core body 33 is divided into multiple parts of unequal width by the through hole 34. In this way, when the first coil 1 is wound on the first width part 333 with a larger width, the first contact area between the first coil 1 and the core body 33 is larger, and when the second coil is wound on the second width part 334 with a smaller width, the second contact area between the second coil 2 and the core body 33 is larger.

在上述实施方式(3)中，铁芯本体33可以为圆环形结构，即，通孔34为圆形结构；铁芯本体33还可以为矩形环结构，通孔34也可以相应地设计为矩形，当然，它们的任意组合均是可行的。其中，附图5仅示例了铁芯本体33 为矩形环结构，通孔34为矩形结构。In the above embodiment (3), the core body 33 may be a circular ring structure, that is, the through hole 34 is a circular structure; the core body 33 may also be a rectangular ring structure, and the through hole 34 may also be designed to be rectangular accordingly. Of course, any combination of them is feasible. It is a rectangular ring structure, and the through hole 34 is a rectangular structure.

本发明实施例提供的电感器，利用电流调节件4来调节第二线圈2的电流大小，在一些可能的实现方式中，该电流调节件4为IGBT整流电路，IGBT整流电路能够将交流电转换为直流电，进而用于调节第二线圈2中通入的直流电。The inductor provided in an embodiment of the present invention utilizes a current regulator 4 to adjust the current size of the second coil 2. In some possible implementations, the current regulator 4 is an IGBT rectifier circuit, which can convert alternating current into direct current, and is further used to regulate the direct current passed into the second coil 2.

在一些可能的实现方式中，如附图1所示，该IGBT整流电路包括：二极管整流桥41、电感元件42、电容元件43和IGBT晶体管44(Insulated Gate Bipolar Transistor，绝缘栅双极型晶体管)。In some possible implementations, as shown in FIG1 , the IGBT rectifier circuit includes: a diode rectifier bridge 41, an inductor element 42, a capacitor element 43 and an IGBT transistor 44 (Insulated Gate Bipolar Transistor).

其中，二极管整流桥41由四个二极管两两对接而成，使得二极管整流桥41具有四个接点。其中一对相对的接点、电感元件42、IGBT晶体管44通过导线依次首尾连接，电容并联于二极管整流桥41和电感元件42之间，即，电容的一端与一个接点和电感元件42之间的导线连接，电容元件43的另一端与IGBT晶体管44和另一接点之间的导线连接；另一对相对的接点分别与第二线圈2的两端连接。The diode rectifier bridge 41 is formed by connecting four diodes in pairs, so that the diode rectifier bridge 41 has four contacts. A pair of opposite contacts, the inductor element 42, and the IGBT transistor 44 are connected end to end in sequence through wires, and the capacitor is connected in parallel between the diode rectifier bridge 41 and the inductor element 42, that is, one end of the capacitor is connected to the wire between one contact and the inductor element 42, and the other end of the capacitor element 43 is connected to the wire between the IGBT transistor 44 and another contact; the other pair of opposite contacts are respectively connected to the two ends of the second coil 2.

IGBT晶体管44是由BJT(双极型三极管))和MOS(绝缘栅型场效应管)组成的复合全控型电压驱动式功率半导体器件，兼有MOSFET的高输入阻抗和GTR的低导通压降两方面的优点。GTR饱和压降低，载流密度大，但驱动电流较大；MOSFET驱动功率很小，开关速度快，但导通压降大，载流密度小。IGBT综合了以上两种器件的优点，驱动功率小而饱和压降低。The IGBT transistor 44 is a composite fully controlled voltage-driven power semiconductor device composed of a BJT (bipolar transistor) and a MOS (insulated gate field effect transistor), and has the advantages of both the high input impedance of a MOSFET and the low on-state voltage drop of a GTR. The GTR has a low saturation voltage drop and a large current density, but a large driving current; the MOSFET has a very low driving power and a fast switching speed, but a large on-state voltage drop and a low current density. The IGBT combines the advantages of the above two devices, with low driving power and low saturation voltage drop.

当然，IGBT晶体管44也可以为可控硅((Silicon Controlled Rectifier，SCR)。Of course, the IGBT transistor 44 can also be a thyristor (Silicon Controlled Rectifier, SCR).

本发明实施例中，根据第一线圈1的电感量来确定IGBT晶体管44的打开或者关断的频率，举例来说，如若使第一线圈1的电感量减小，则可以增加IGBT晶体管44的开关频率(当然要保持每次开关的时间相同)；反之，如若使第一线圈1的电感量增大，则可以减小IGBT晶体管44的开关频率。In the embodiment of the present invention, the frequency of turning on or off the IGBT transistor 44 is determined according to the inductance of the first coil 1. For example, if the inductance of the first coil 1 is reduced, the switching frequency of the IGBT transistor 44 can be increased (of course, the switching time of each switch must be kept the same); conversely, if the inductance of the first coil 1 is increased, the switching frequency of the IGBT transistor 44 can be reduced.

上述IGBT整流电路中设置有电容元件43，电容元件43被配置为用来进行滤波，这是因为在IGBT晶体管44每次关断时均产生一个脉冲信号，为了防止该脉冲信号进入第一线圈1的回路中，进而对负载带来干扰波，所以，利用电容元件43进行滤波处理，消除这些干扰波。The above-mentioned IGBT rectifier circuit is provided with a capacitor element 43, and the capacitor element 43 is configured to perform filtering. This is because a pulse signal is generated each time the IGBT transistor 44 is turned off. In order to prevent the pulse signal from entering the loop of the first coil 1 and thereby causing interference waves to the load, the capacitor element 43 is used for filtering to eliminate these interference waves.

上述IGBT整流电路中设置有电感元件42，电感元件42被配置为不仅能够保护IGBT晶体管44，以防止大电流冲击对IGBT晶体管44的损害，同时，还能起到一定的滤波作业，即，消除干扰波。The IGBT rectifier circuit is provided with an inductor 42 , which is configured to not only protect the IGBT transistor 44 to prevent damage to the IGBT transistor 44 caused by a large current impact, but also to perform a certain filtering operation, that is, to eliminate interference waves.

在一些可能的实现方式中，如附图6所示，该电流调节件4为可调电阻器 45。可调电阻器45指的是阻值可以调整的电阻器，本领域技术人员通过市购可以获得，举例来说，东莞市国业电子有限公司生产并销售的可调电阻器45即可适用于本发明。In some possible implementations, as shown in FIG. 6 , the current regulating element 4 is an adjustable resistor. 45. The adjustable resistor 45 refers to a resistor whose resistance value can be adjusted, and those skilled in the art can obtain it through commercial purchase. For example, the adjustable resistor 45 produced and sold by Dongguan Guoye Electronics Co., Ltd. is applicable to the present invention.

利用可调电阻器45能够改变第二线圈2的电阻大小，进而改变第二线圈2上的电流大小，进而改变第二线圈2的磁通量大小，即实现了对电感器的电感量的调节。可见，当需要改变电感器的电感量时，只需调节可调电阻器45的大小即可，其操作简单，且能够避免造成直流电的浪费。The adjustable resistor 45 can be used to change the resistance of the second coil 2, thereby changing the current on the second coil 2, thereby changing the magnetic flux of the second coil 2, and adjusting the inductance of the inductor. It can be seen that when the inductance of the inductor needs to be changed, it is only necessary to adjust the size of the adjustable resistor 45, which is simple to operate and can avoid wasting direct current.

本发明实施例提供的分数匝可调电感器，可以应用于电力***、仪器仪表、音箱中，以进行线性精确调节。The fractional-turn adjustable inductor provided in the embodiment of the present invention can be applied to power systems, instruments and meters, and speakers to perform precise linear adjustment.

以音箱举例来说，音箱包括：分频器，其中分频器又上述的可调电感器。通过使用本发明实施例提供的电感器，用户可以根据个人喜好调节电感量，使分频器可以更好地对音箱进行多分频，使音箱的频率更宽。Taking a speaker as an example, the speaker includes: a frequency divider, wherein the frequency divider is the above-mentioned adjustable inductor. By using the inductor provided by the embodiment of the present invention, the user can adjust the inductance according to personal preference, so that the frequency divider can better divide the speaker into multiple frequencies, making the frequency of the speaker wider.

另一方面，本发明实施例还提供了一种扬声器组件，如附图7所示，该扬声器组件包括：三个扬声器和三个电感器，其中，电感器如上述任一种所述。On the other hand, an embodiment of the present invention further provides a speaker assembly, as shown in FIG7 , the speaker assembly includes: three speakers and three inductors, wherein the inductors are as described in any one of the above.

本发明实施例提供的扬声器组件具有电感器的所有优点，在此不再一一赘述。The speaker assembly provided by the embodiment of the present invention has all the advantages of the inductor, which will not be described in detail here.

如附图7所示，该扬声器组件包括第一扬声器001、第二扬声器002、第三扬声器003、第一电感器100、第二电感器200和第三电感器300。As shown in FIG. 7 , the speaker assembly includes a first speaker 001 , a second speaker 002 , a third speaker 003 , a first inductor 100 , a second inductor 200 and a third inductor 300 .

第一扬声器001的负极端与功放设备A的负极端电性连接，第一扬声器001的正极端与功放设备A的正极端电性连接；第二扬声器002的负极端与功放设备A的正极端电性连接，第二扬声器002的正极端与功放设备A的负极端电性连接；第三扬声器003的负极端与功放设备A的负极端电性连接，第三扬声器003的正极端与功放设备A的正极端电性连接。The negative terminal of the first speaker 001 is electrically connected to the negative terminal of the power amplifier device A, and the positive terminal of the first speaker 001 is electrically connected to the positive terminal of the power amplifier device A; the negative terminal of the second speaker 002 is electrically connected to the positive terminal of the power amplifier device A, and the positive terminal of the second speaker 002 is electrically connected to the negative terminal of the power amplifier device A; the negative terminal of the third speaker 003 is electrically connected to the negative terminal of the power amplifier device A, and the positive terminal of the third speaker 003 is electrically connected to the positive terminal of the power amplifier device A.

第一电感器100连接于第一扬声器001和功放设备A之间的回路中，例如，图7示例了，第一电感器100连接于第一扬声器001的正极端与功放设备A的正极端之间的回路中。The first inductor 100 is connected in a loop between the first speaker 001 and the power amplifier device A. For example, FIG. 7 illustrates that the first inductor 100 is connected in a loop between the positive terminal of the first speaker 001 and the positive terminal of the power amplifier device A.

第二电感器200连接于第二扬声器002和功放设备A之间的回路中，例如，图7示例了，第二电感器200连接于第二扬声器002的正极端与功放设备A的负极端之间的回路中。The second inductor 200 is connected in a loop between the second speaker 002 and the power amplifier device A. For example, FIG. 7 illustrates that the second inductor 200 is connected in a loop between the positive terminal of the second speaker 002 and the negative terminal of the power amplifier device A.

第三电感器300连接于第三扬声器003和功放设备A之间的回路中，例如， 图7示例了，第三电感器300连接于第三扬声器003的正极端与功放设备A的正极端之间的回路中。The third inductor 300 is connected in the loop between the third speaker 003 and the power amplifier device A, for example, FIG. 7 illustrates that the third inductor 300 is connected in a loop between the positive terminal of the third speaker 003 and the positive terminal of the power amplifier device A. As shown in FIG.

第一电感器100、第二电感器200和第三电感器300连接于上述各自对应的回路中时，使得第一电感器100、第二电感器200和第三电感器300利用各自的第一线圈1的两端接入至相应回路中即可。When the first inductor 100 , the second inductor 200 , and the third inductor 300 are connected to the above-mentioned corresponding loops, the first inductor 100 , the second inductor 200 , and the third inductor 300 can be connected to the corresponding loops by using two ends of their respective first coils 1 .

例如，第一电感器100的第一线圈1的两端接入至第一扬声器001的正极端与功放设备A的正极端之间的回路中。For example, two ends of the first coil 1 of the first inductor 100 are connected to a loop between the positive terminal of the first speaker 001 and the positive terminal of the power amplifier device A.

第一电感器100、第二电感器200和第三电感器300均为可调电感器，以便于根据用户的实际需求和喜好进行调节即可，从而使扬声器组件获得期望的音质效果。在可调电感器的调整端，优选使用可调电阻进行调整。The first inductor 100, the second inductor 200 and the third inductor 300 are all adjustable inductors, so that they can be adjusted according to the actual needs and preferences of the user, so that the speaker assembly can obtain the desired sound quality effect. At the adjustment end of the adjustable inductor, an adjustable resistor is preferably used for adjustment.

在一些可能的实现方式中，第一电感器100、第二电感器200和第三电感器300均可以使用如附图2或者附图3所示的电感器结构，其具有加工简单、制备方便，成本较低等优点。In some possible implementations, the first inductor 100 , the second inductor 200 , and the third inductor 300 may all use the inductor structure shown in FIG. 2 or FIG. 3 , which has the advantages of simple processing, convenient preparation, and low cost.

在一些可能的实现方式中，第二扬声器002为中高频扬声器或者全频扬声器，第二扬声器002与其他扬声器的正负极反接并进行并联后接入功放设备A的输出端，这样利于获得更佳的音质。In some possible implementations, the second speaker 002 is a mid-high frequency speaker or a full-range speaker. The second speaker 002 is connected to the output end of the power amplifier device A after the positive and negative poles of the other speakers are reversed and connected in parallel, which is conducive to obtaining better sound quality.

在本发明实施例中，术语“第一”和“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。术语“多个”指两个或两个以上，除非另有明确的限定。In the embodiments of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

以上所述仅是为了便于本领域的技术人员理解本发明的技术方案，并不用以限制本发明。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 The above description is only for the purpose of facilitating those skilled in the art to understand the technical solution of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (13)

1. 一种电感器，其特征在于，所述电感器包括：第一线圈(1)、第二线圈(2)、铁芯件(3)、电流调节件(4)；An inductor, characterized in that the inductor comprises: a first coil (1), a second coil (2), an iron core component (3), and a current regulating component (4);

   所述第一线圈(1)缠绕于所述铁芯件(3)上，且所述第一线圈(1)与所述铁芯件(3)具有第一接触面积；The first coil (1) is wound on the iron core member (3), and the first coil (1) and the iron core member (3) have a first contact area;

   所述第二线圈(2)缠绕于所述铁芯件(3)上，且所述第二线圈(2)与所述铁芯件(3)具有第二接触面积；其中，所述第二接触面积小于所述第一接触面积；The second coil (2) is wound on the iron core (3), and the second coil (2) and the iron core (3) have a second contact area; wherein the second contact area is smaller than the first contact area;

   所述电流调节件(4)的两端分别与所述第二线圈(2)的两端连接，所述电流调节件(4)用于调节所述第二线圈(2)的电流大小。The two ends of the current regulating member (4) are respectively connected to the two ends of the second coil (2), and the current regulating member (4) is used to regulate the current magnitude of the second coil (2).
2. 根据权利要求1所述的电感器，其特征在于，所述铁芯件(3)具有第一缠绕部和第二缠绕部，所述第一缠绕部用于缠绕所述第一线圈(1)，所述第二缠绕部用于缠绕所述第二线圈(2)；The inductor according to claim 1, characterized in that the core member (3) has a first winding portion and a second winding portion, the first winding portion is used to wind the first coil (1), and the second winding portion is used to wind the second coil (2);

   所述第一缠绕部的横截面积大于所述第二缠绕部的横截面积。The cross-sectional area of the first winding portion is greater than the cross-sectional area of the second winding portion.
3. 根据权利要求1所述的电感器，其特征在于，所述铁芯件(3)包括：第一铁芯(31)和第二铁芯(32)；The inductor according to claim 1, characterized in that the core member (3) comprises: a first core (31) and a second core (32);

   所述第一铁芯(31)套设于所述第二铁芯(32)的外部，或者，所述第一铁芯(31)与所述第二铁芯(32)并排布置；The first iron core (31) is sleeved on the outside of the second iron core (32), or the first iron core (31) and the second iron core (32) are arranged side by side;

   所述第一线圈(1)同时缠绕于所述第一铁芯(31)和所述第二铁芯(32)上；The first coil (1) is wound around the first iron core (31) and the second iron core (32) at the same time;

   所述第二线圈(2)缠绕于所述第二铁芯(32)上；The second coil (2) is wound on the second iron core (32);

   所述第一线圈(1)与所述第二线圈(2)的匝数相同或不同。The number of turns of the first coil (1) and the second coil (2) are the same or different.
4. 根据权利要求3所述的电感器，其特征在于，所述第一铁芯(31)和所述第二铁芯(32)均为圆环形结构或者均为矩形环结构。The inductor according to claim 3, characterized in that the first iron core (31) and the second iron core (32) are both circular ring structures or both rectangular ring structures.
5. 根据权利要求1所述的电感器，其特征在于，所述铁芯件(3)包括：铁芯本体(33)和通孔(34)，所述通孔(34)贯穿所述铁芯本体(33)的两端； The inductor according to claim 1, characterized in that the core member (3) comprises: a core body (33) and a through hole (34), wherein the through hole (34) passes through both ends of the core body (33);

   所述铁芯本体(33)的壁上具有缺口(35)，所述缺口(35)使得所述铁芯本体(33)分隔为相互连接的主体部分(331)和缺口部分(332)；A notch (35) is provided on the wall of the core body (33), and the notch (35) separates the core body (33) into a main body part (331) and a notch part (332) that are connected to each other;

   所述主体部分(331)的高度等于所述铁芯本体(33)的高度，所述第一线圈(1)缠绕于所述主体部分(331)上；The height of the main body (331) is equal to the height of the iron core body (33), and the first coil (1) is wound around the main body (331);

   所述缺口部分(35)的高度小于所述铁芯本体(33)的高度，所述第二线圈(2)缠绕于所述缺口部分(35)上；The height of the notch portion (35) is smaller than the height of the core body (33), and the second coil (2) is wound around the notch portion (35);

   所述第一线圈(1)与所述第二线圈(2)的匝数相同或不同。The number of turns of the first coil (1) and the second coil (2) are the same or different.
6. 根据权利要求5所述的电感器，其特征在于，所述铁芯本体(33)为圆环形结构或者矩形环结构。The inductor according to claim 5 is characterized in that the core body (33) is a circular ring structure or a rectangular ring structure.
7. 根据权利要求1所述的电感器，其特征在于，所述铁芯件(3)包括：铁芯本体(33)和通孔(34)，所述通孔(34)贯穿所述铁芯本体(33)的两端；The inductor according to claim 1, characterized in that the core member (3) comprises: a core body (33) and a through hole (34), wherein the through hole (34) passes through both ends of the core body (33);

   所述铁芯本体(33)被所述通孔(34)分隔成第一宽度部分(333)和第二宽度部分(334)，所述第一宽度部分(333)的径向宽度大于所述第二宽度部分(334)的径向宽度；The core body (33) is divided into a first width portion (333) and a second width portion (334) by the through hole (34), and the radial width of the first width portion (333) is greater than the radial width of the second width portion (334);

   所述第一线圈(1)缠绕于所述第一宽度部分(333)上，所述第二宽度部分(334)缠绕于所述第二宽度部分(334)上；The first coil (1) is wound on the first width portion (333), and the second width portion (334) is wound on the second width portion (334);

   所述第一线圈(1)与所述第二线圈(2)的匝数相同或不同。The number of turns of the first coil (1) and the second coil (2) are the same or different.
8. 根据权利要求7所述的电感器，其特征在于，所述铁芯本体(33)为圆环形结构或者矩形环结构；相应地，所述通孔(34)为圆形结构或者矩形结构。The inductor according to claim 7 is characterized in that the core body (33) is a circular ring structure or a rectangular ring structure; correspondingly, the through hole (34) is a circular structure or a rectangular structure.
9. 根据权利要求1-8任一项所述的电感器，其特征在于，所述电流调节件(4)为IGBT整流电路。The inductor according to any one of claims 1 to 8, characterized in that the current regulating component (4) is an IGBT rectifier circuit.
10. 根据权利要求9所述的电感器，其特征在于，所述IGBT整流电路包括：二极管整流桥(41)、电感元件(42)、电容元件(43)和IGBT晶体管(44)；The inductor according to claim 9, characterized in that the IGBT rectifier circuit comprises: a diode rectifier bridge (41), an inductor element (42), a capacitor element (43) and an IGBT transistor (44);

    所述二极管整流桥(41)由四个二极管两两对接而成，使得所述二极管整流桥(41)具有四个接点；The diode rectifier bridge (41) is formed by connecting four diodes in pairs, so that the diode rectifier bridge (41) has four connection points;

    其中一对相对的所述接点、所述电感元件(42)、所述IGBT晶体管(44) 通过导线依次首尾连接，所述电容元件(43)并联于所述二极管整流桥(41)和所述电感元件(42)之间；A pair of opposite contacts, the inductor (42), the IGBT transistor (44) The capacitor element (43) is connected in parallel between the diode rectifier bridge (41) and the inductor element (42) by connecting the ends of the capacitor element (43) in sequence through wires;

    另一对相对的所述接点分别与所述第二线圈(2)的两端连接。Another pair of opposite contacts are respectively connected to two ends of the second coil (2).
11. 根据权利要求1-8任一项所述的电感器，其特征在于，所述电流调节件(4)为可变电阻器(45)。The inductor according to any one of claims 1 to 8, characterized in that the current regulating element (4) is a variable resistor (45).
12. 一种扬声器组件，其特征在于，所述扬声器组件包括：第一扬声器(001)、第二扬声器(002)、第三扬声器(003)、第一电感器(100)、第二电感器(200)和第三电感器(300)，其中，所述第一电感器(100)、所述第二电感器(200)和所述第三电感器(300)分别如权利要求1-11任一项所述的电感器；A speaker assembly, characterized in that the speaker assembly comprises: a first speaker (001), a second speaker (002), a third speaker (003), a first inductor (100), a second inductor (200) and a third inductor (300), wherein the first inductor (100), the second inductor (200) and the third inductor (300) are respectively the inductors according to any one of claims 1 to 11;

    所述第一扬声器(001)的负极端与功放设备的负极端电性连接，所述第一扬声器(001)的正极端与功放设备的正极端电性连接，所述第一电感器(100)连接于所述第一扬声器(001)和功放设备之间的回路中；The negative terminal of the first speaker (001) is electrically connected to the negative terminal of the power amplifier device, the positive terminal of the first speaker (001) is electrically connected to the positive terminal of the power amplifier device, and the first inductor (100) is connected in a loop between the first speaker (001) and the power amplifier device;

    所述第二扬声器(002)的负极端与功放设备的正极端电性连接，所述第二扬声器(002)的正极端与功放设备的负极端电性连接，所述第二电感器(200)连接于所述第二扬声器(002)和功放设备之间的回路中；The negative terminal of the second speaker (002) is electrically connected to the positive terminal of the power amplifier device, the positive terminal of the second speaker (002) is electrically connected to the negative terminal of the power amplifier device, and the second inductor (200) is connected in a loop between the second speaker (002) and the power amplifier device;

    所述第三扬声器(003)的负极端与功放设备的负极端电性连接，所述第三扬声器(003)的正极端与功放设备的正极端电性连接，所述第三电感器(300)连接于第三扬声器(003)和功放设备之间的回路中。The negative terminal of the third speaker (003) is electrically connected to the negative terminal of the power amplifier device, the positive terminal of the third speaker (003) is electrically connected to the positive terminal of the power amplifier device, and the third inductor (300) is connected in a loop between the third speaker (003) and the power amplifier device.
13. 根据权利要求12所述的扬声器组件，其特征在于，所述第二扬声器(002)为中高频扬声器或者全频扬声器。 The speaker assembly according to claim 12 is characterized in that the second speaker (002) is a mid-high frequency speaker or a full-range speaker.