WO2023056956A1

WO2023056956A1 - Magnetic element

Info

Publication number: WO2023056956A1
Application number: PCT/CN2022/123974
Authority: WO
Inventors: 张宏年; 张日胜
Original assignee: 斯特华(佛山)磁材有限公司
Priority date: 2021-10-09
Filing date: 2022-10-09
Publication date: 2023-04-13
Also published as: CN215955034U

Abstract

A magnetic element, comprising: a magnetic core body (1), having an inner channel (11); and a first coil structure (2) and a second coil structure (3), wound on two sides of the magnetic core body (1), the first coil structure (2) and/or the second coil structure (3) being formed by winding multiple cable splicing members (4) connected end to end. The magnetic element of the present application solves the problems that a magnetic element having high rated current is bulky and the coil winding is difficult.

Description

磁性元件magnetic element

相关申请related application

本申请要求专利申请号为202122432757.6、申请日为2021.10.09、发明创造名称为“磁性元件”的中国实用新型专利的优先权。This application claims the priority of the Chinese utility model patent with the patent application number 202122432757.6, the application date is 2021.10.09, and the invention name is "magnetic element".

技术领域technical field

本申请涉及电感器技术领域，尤其涉及一种磁性元件。The present application relates to the technical field of inductors, in particular to a magnetic element.

背景技术Background technique

本部分的描述仅提供与本申请公开相关的背景信息，而不构成现有技术。The descriptions in this section merely provide background information related to the disclosure in this application and may not constitute prior art.

随着配电和“N+1”结构在数据中心的普及，更高功率密度的电池技术在汽车中的发展以及清洁能源的发展促进了居民的生活，DC-DC能源供应革命在全球范围内越来越流行。With the popularization of power distribution and "N+1" structure in data centers, the development of higher power density battery technology in automobiles, and the development of clean energy to promote the lives of residents, the DC-DC energy supply revolution is on a global scale getting more popular.

DC-DC开关电源的两个突出特点是：高频提高功率密度，大电流适应配电技术发展和半导体莫尔极限挑战。另一方面，高频将导致更大的电磁干扰(Electromagnetic Interference，EMI)问题，而大电流则将恶化组件的传导损耗。所有这些都给传统成分带来了新的挑战。The two outstanding features of DC-DC switching power supply are: high frequency improves power density, large current adapts to the development of power distribution technology and semiconductor Moiré limit challenge. On the other hand, high frequency will lead to greater Electromagnetic Interference (EMI) problems, and high current will worsen the conduction loss of components. All of this brings new challenges to traditional ingredients.

二维平面结构是磁性元件适应这种应用的一种流行解决方案，因为它具有更好的热散射特性和优化的损耗原理设计。这就是为什么平面变压器在车载充电器(On board charger，OBC)，太阳能和电信二次转换中非常受欢迎的原因。但是，对于电磁干扰的抑制而言，磁性元件似乎仍然是研究如何实现性能、功率密度和成本之间平衡的巨大机会，这也是可以与之竞争的商机。A two-dimensional planar structure is a popular solution for adapting magnetic components to this application because of its better heat-scattering properties and optimized loss principle design. This is why planar transformers are very popular in on-board chargers (OBC), solar and telecom secondary conversion. However, for EMI suppression, magnetics still appear to be a huge opportunity to investigate how to balance performance, power density and cost, and this is a competitive business opportunity.

应该注意，上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本申请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。It should be noted that the above introduction to the technical background is only for the convenience of a clear and complete description of the technical solution of the present application, and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are known to those skilled in the art just because these solutions are described in the background technology section of this application.

发明内容Contents of the invention

本申请的目的是提供一种磁性元件，解决了大额定电流的磁性元件体积大，且线圈绕组困难的问题。The purpose of this application is to provide a magnetic element, which solves the problems of large volume and difficult coil winding of the magnetic element with high rated current.

本申请的目的可采用下列技术方案来实现：The purpose of this application can adopt following technical scheme to realize:

本申请提供一种磁性元件，所述磁性元件包括：The application provides a magnetic element, the magnetic element comprising:

磁芯本体，具有内通道；The magnetic core body has an inner channel;

第一线圈结构和第二线圈结构，绕设在所述磁芯本体的两侧，所述第一线圈结构和/或所述第二线圈结构通过首尾相连的多个线缆拼接件绕设形成。The first coil structure and the second coil structure are wound on both sides of the magnetic core body, and the first coil structure and/or the second coil structure are formed by winding a plurality of cable splices connected end to end .

本申请的有益效果是：The beneficial effect of this application is:

一、本申请的磁性元件，通过首尾相接的多个线缆拼接件形成了绕设在磁性本体上的第一线圈结构和第二线圈结构，解决了当线圈通入大额定电流时，导致的磁性元件体积增大，且线圈绕组困难的问题。1. The magnetic element of the present application forms the first coil structure and the second coil structure wound on the magnetic body through a plurality of cable splices connected end to end, which solves the problem of The volume of magnetic components increases and the coil winding is difficult.

二、本申请的磁性元件，相对两个“半”形铁心组装的可支持100A额定电流的磁芯来说，整体体积减少30％，整体重量减少至少20％，其结构更加紧凑，该磁性元件可适用于通信、电动汽车、太阳能等技术领域的所需的功率水平。2. The magnetic element of the present application, compared with a magnetic core assembled with two "half" shaped iron cores that can support a rated current of 100A, has an overall volume reduction of 30%, an overall weight reduction of at least 20%, and a more compact structure. It can be applied to the required power levels in technical fields such as communication, electric vehicles, and solar energy.

三、本申请的磁性元件，由于第一线圈结构和第二线圈结构在缠绕至磁芯本体的过程中，未对磁芯本体造成机械外力损伤，因此可以任意选择磁芯本体，提高了产品的设计灵活度。另外，开口线缆与导电连接件的连接方式采用高温焊接连接，可以获得更好的连接稳定性，且能适应恶劣的环境。3. For the magnetic element of the present application, since the first coil structure and the second coil structure do not cause mechanical external force damage to the magnetic core body during the process of winding the magnetic core body, the magnetic core body can be selected arbitrarily, which improves the quality of the product. Design flexibility. In addition, the connection between the open cable and the conductive connector is connected by high-temperature welding, which can obtain better connection stability and can adapt to harsh environments.

附图说明Description of drawings

以下附图仅旨在于对本发明做示意性说明和解释，并不限定本发明的范围。其中：The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. in:

图1为本申请的磁性元件的立体图。FIG. 1 is a perspective view of a magnetic element of the present application.

图2为本申请的磁性元件的立体***图。FIG. 2 is a three-dimensional exploded view of the magnetic element of the present application.

图3为本申请的第一线圈结构和第二线圈结构的立体示意图。FIG. 3 is a perspective view of the first coil structure and the second coil structure of the present application.

图4为本申请的导电连接件的结构示意图。FIG. 4 is a schematic structural diagram of the conductive connector of the present application.

图5为本申请的开口线缆的结构示意图。Fig. 5 is a schematic structural diagram of the open cable of the present application.

具体实施方式Detailed ways

下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

需要说明的是，当元件被称为“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的另一个元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中另一个元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may be another element in between. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or it may be present intervening with the other element. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is only for the purpose of describing specific embodiments, and is not intended to limit the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

现有技术中，对于小于或等于50A的额定电流，缠绕在磁芯上的导线可以由单根或几根平行导线形成，导线的缠绕方式可通过手动或机械工具直接缠绕在磁芯上，并且磁芯可以抵抗导线的相应应力。In the prior art, for a rated current less than or equal to 50A, the wire wound on the magnetic core can be formed by a single or several parallel wires, and the winding method of the wire can be directly wound on the magnetic core by manual or mechanical tools, and The magnetic core can resist the corresponding stress of the wire.

但是，对于超过60A，例如100A、150A、200A或更大的额定电流，导线的横截面面积将增大至大于10mm ²，这对于单线绕制的导线缠绕方式而言是不可行的，原因在于：一方面现有的缠绕工具无法提供较大的缠绕动力，另一方面缠绕空间受限。除此之外，致命的因素是这种缠绕方式还会破坏磁芯或对磁芯产生很大的内应力，特别是对高磁导率的磁芯来说更为敏感，有可能导致磁性能下降甚至消失。如果采用手动操作进行缠绕，如何将线径为3.0mm或更高线径的导线缠绕在磁芯上，也存在困难。 However, for rated currents exceeding 60A, such as 100A, 150A, 200A or more, the cross-sectional area of the wire will increase to more than 10mm ² , which is not feasible for the wire winding method of single wire winding, because : On the one hand, existing winding tools cannot provide greater winding power, and on the other hand, the winding space is limited. In addition, the fatal factor is that this winding method will also damage the core or generate a large internal stress on the core, especially for high-permeability cores, which may lead to poor magnetic properties. decline or even disappear. If the winding is performed manually, there are also difficulties in how to wind a wire with a wire diameter of 3.0mm or higher on the magnetic core.

现有方法中可使用多个小规格导线并联绕组的方式解决该问题，但是此过程只能通过手动操作实现，并且双绞线将比单根导线更加昂贵且更粗，此外还会导致频率性能下降并产生高电感下降的问题。Existing methods can solve this problem by using parallel windings of multiple small gauge wires, but this process can only be achieved manually, and twisted pairs will be more expensive and thicker than single wires, and will also cause frequency performance problems. drop and create problems with high inductance drops.

现有方法中，还可采用两个“半”形铁心(切割非晶铁心)组装成一个扁平铁芯以获得一个可支持100A额定电流的磁芯。以此来解决铁芯与线圈之间的相互影响问题。但是，此种结构的磁性元件仍然存在致命的问题，即两个“半”形铁芯在组装后，二者之间形成了气隙，而为弥补这一缺陷，需要牺牲例如铁芯尺寸、重量和/或成本等许多因素，才能达到维持同样频率性能的目的。In the existing method, two "half" shaped iron cores (cut amorphous iron cores) can also be used to assemble a flat iron core to obtain a magnetic core capable of supporting a rated current of 100A. In this way, the problem of mutual influence between the iron core and the coil is solved. However, there is still a fatal problem in the magnetic element of this structure, that is, after the two "half" shaped iron cores are assembled, an air gap is formed between the two, and in order to make up for this defect, it is necessary to sacrifice such as the size of the iron core, There are many factors such as weight and/or cost to achieve the purpose of maintaining the same frequency performance.

基于上述问题，如图1所示，本申请提供了一种磁性元件，所述磁性元件包括磁芯本体1、第一线圈结构2和第二线圈结构3，其中：磁芯本体1具有内通道11；第一线圈结构2和第二线圈结构3绕设在所述磁芯本体1的两侧，所述第一线圈结构2和/或所述第二线圈结构3具有首尾相连的多个线缆拼接件4。Based on the above problems, as shown in Figure 1, the present application provides a magnetic element, which includes a magnetic core body 1, a first coil structure 2 and a second coil structure 3, wherein: the magnetic core body 1 has an inner channel 11. The first coil structure 2 and the second coil structure 3 are wound on both sides of the magnetic core body 1, and the first coil structure 2 and/or the second coil structure 3 have a plurality of wires connected end to end Cable splice 4.

本申请的磁性元件，通过首尾相接的多个线缆拼接件4形成了绕设在磁芯本体1上的第一线圈结构2和/或第二线圈结构3，解决了在需要向线圈通入大额定电流的情况下，需增大磁性元件体积，且线圈绕组困难的问题。The magnetic element of the present application forms the first coil structure 2 and/or the second coil structure 3 wound on the magnetic core body 1 through a plurality of cable splicing pieces 4 connected end to end, which solves the problem that the coil needs to be connected In the case of inputting a large rated current, the volume of the magnetic element needs to be increased, and the coil winding is difficult.

具体的，该磁芯本体1为环形铁芯，该环形铁芯一体成型；该第一线圈结构2和第二线圈结构3分别设置在环形铁芯的两侧，且二者的线圈绕设方向相反。在本申请中，该第一线圈结构2和第二线圈结构3相同，二者均是由首尾相连的多个线缆拼接件4组成；当然，在其它的实施例中，该第一线圈结构2和第二线圈结构3也可不同，例如，第一线圈结构2可为由首尾相连的多个线缆拼接件4组成，而第二线圈结构3可由单根线缆绕设在磁芯本体1上形成，反之亦然，在此不做限制。Specifically, the magnetic core body 1 is an annular iron core, and the annular iron core is integrally formed; the first coil structure 2 and the second coil structure 3 are respectively arranged on both sides of the annular iron core, and the coil winding directions of the two on the contrary. In this application, the first coil structure 2 and the second coil structure 3 are the same, both of which are composed of a plurality of cable splices 4 connected end to end; of course, in other embodiments, the first coil structure 2 and the second coil structure 3 can also be different, for example, the first coil structure 2 can be composed of a plurality of cable splices 4 connected end to end, while the second coil structure 3 can be wound on the magnetic core body by a single cable 1, and vice versa, without limitation.

在本申请的一可行实施方式中，如图2和图3所示，多个线缆拼接件4包括多个开口线缆41和多个导电连接件42，各导电连接件42连接在相邻的两个开口线缆41之间。In a feasible implementation manner of the present application, as shown in FIG. 2 and FIG. 3 , a plurality of cable splices 4 include a plurality of open cables 41 and a plurality of conductive connectors 42, and each conductive connector 42 is connected to adjacent Between the two open cables 41.

具体的，导电连接件42例如可为金属冲压形成的扁平条状的连接件，其例如为电镀铜连接件；如图4所示，该导电连接件42具有第一连接部421和第二连接部422，该第一连接部421和第二连接部422之间通过弧形过渡部423相接，通过设置弧形过渡部423，可使第一连接部421和第二连接部422形成一定的夹角θ，以便相邻设置的两个开口线缆41能够呈一定角度的绕设在磁芯本体1上，提高了各开口线缆41与磁芯本体1连接位置的灵活性且更利于调整各开口线缆41的相对位置，以使开口线缆41绕设的更加紧密且不会导致各开口线缆41之间相互干涉的问题。当然，在其他的实施例中，导电连接件42也可不设置弧形过渡部423，其例如可为长条状，在此不做限制。Specifically, the conductive connector 42 may be, for example, a flat strip-shaped connector formed by metal stamping, such as an electroplated copper connector; as shown in FIG. 4 , the conductive connector 42 has a first connecting portion 421 and a second connecting portion part 422, the first connecting part 421 and the second connecting part 422 are connected by an arc-shaped transition part 423, by setting the arc-shaped transition part 423, the first connecting part 421 and the second connecting part 422 can form a certain The included angle θ, so that the two open cables 41 arranged adjacently can be wound on the magnetic core body 1 at a certain angle, which improves the flexibility of the connection position between each open cable 41 and the magnetic core body 1 and is more conducive to adjustment The relative position of each of the open cables 41 is to make the open cables 41 wound more closely without causing the problem of mutual interference between the open cables 41 . Of course, in other embodiments, the conductive connecting member 42 may not be provided with the arc-shaped transition portion 423 , and it may be elongated, for example, which is not limited here.

在本实施例中，该导电连接件42与开口线缆41的两端部之间通过插接并焊接的方式相连。具体的，在导电连接件42的两端分别设有开孔，例如包括开设在第一连接部421上的第一连接孔4211和开设在第二连接部422上的第二连接孔4221，开口线缆41的一端可***一个导电连接件42的第一连接孔4211和/或第二连接孔4221内，而该开口线缆41的另一端可***另一导电连接件42的第二连接孔4221和/或第一连接孔4211内。当开口线缆41的端部***对应的开孔后，通过焊接的方式将二者连接在一起，在本申请中，焊接温度可为350℃或高于350℃，焊接的方式可为压焊、电弧焊或超声波焊接等，在此不做限制。In this embodiment, the conductive connector 42 is connected to the two ends of the open cable 41 by inserting and welding. Specifically, openings are respectively provided at both ends of the conductive connector 42, for example, a first connection hole 4211 provided on the first connection part 421 and a second connection hole 4221 provided on the second connection part 422 are provided. One end of the cable 41 can be inserted into the first connection hole 4211 and/or the second connection hole 4221 of a conductive connector 42, and the other end of the open cable 41 can be inserted into the second connection hole of another conductive connector 42 4221 and/or the first connecting hole 4211. After the end of the open cable 41 is inserted into the corresponding opening, the two are connected together by welding. In this application, the welding temperature can be 350°C or higher, and the welding method can be pressure welding. , arc welding or ultrasonic welding, etc., are not limited here.

可选的，第一连接孔4211和第二连接孔4221可为设置在导电连接件42上的通孔，或者，该第一连接孔4211和第二连接孔4221可为设置在导电连接件42上的连接槽，只要能使开口线缆41的端部嵌入导电连接件42内的任何结构均可。Optionally, the first connection hole 4211 and the second connection hole 4221 may be through holes provided on the conductive connector 42, or the first connection hole 4211 and the second connection hole 4221 may be provided on the conductive connector 42 Any structure can be used as long as the end of the open cable 41 can be embedded in the conductive connector 42.

在本申请中，该导电连接件42的横截面面积与开口线缆41的横截面面积相等，以保证流过开口线缆41和导电连接件42的电流稳定性。In the present application, the cross-sectional area of the conductive connector 42 is equal to that of the open cable 41 to ensure the stability of the current flowing through the open cable 41 and the conductive connector 42 .

在本申请中，该导电连接件42具有靠近磁芯本体1的内通道11的内端、以及靠近磁芯本体1的外壁的外端，如图5所示，该开口线缆41包括能***内通道11的内***端411、以及位于磁芯本体1的外壁的外***端412，该外***端412能与导电连接件42的外端相接，该内***端411能与导电连接件42的内端相接。In the present application, the conductive connector 42 has an inner end close to the inner channel 11 of the magnetic core body 1 and an outer end close to the outer wall of the magnetic core body 1. As shown in FIG. 5 , the open cable 41 includes a The inner insertion end 411 of the inner channel 11, and the outer insertion end 412 located on the outer wall of the magnetic core body 1, the outer insertion end 412 can be connected with the outer end of the conductive connector 42, and the inner insertion end 411 can be connected with the conductive connector The inner ends of 42 are connected.

该导电连接件42的内端例如可为设有第一连接孔4211的端部，该导电连接件42的外端例如可为设有第二连接孔4221的端部，一个导电连接件42的两端分别与相邻的两个开口线缆41相接，从而形成绕设在磁芯本体1上的线圈结构。The inner end of the conductive connector 42 can be, for example, the end with the first connecting hole 4211, and the outer end of the conductive connector 42 can be, for example, the end with the second connecting hole 4221. Both ends are respectively connected to two adjacent opening cables 41 , thereby forming a coil structure wound on the magnetic core body 1 .

在本申请的另一可行实施方式中，多个线缆拼接件4包括首尾相连的多个开口线缆41。具体的，多个开口线缆41例如可从磁芯本体1的上下两侧对插连接，或者多个开口线缆41例如可从磁芯本体1的内外两侧对插连接，亦或者，多个开口线缆41可从磁芯本体1的任一方向侧对插连接等，只要能保证多个开口线缆41以首尾连接的方式绕设在磁芯本体1上形成线圈结构即可。In another feasible implementation manner of the present application, the plurality of cable splices 4 include a plurality of open cables 41 connected end to end. Specifically, a plurality of open cables 41 can be plugged and connected from the upper and lower sides of the magnetic core body 1, or a plurality of open cables 41 can be plugged and connected from the inner and outer sides of the magnetic core body 1, or multiple A plurality of open cables 41 can be plugged and connected from any side of the magnetic core body 1 , as long as a plurality of open cables 41 can be wound on the magnetic core body 1 in an end-to-end manner to form a coil structure.

在上述两种实施方式中，所述的开口线缆41可为U型开口线缆，采用该形状可以更好的与磁芯本体1的外轮廓匹配，节省空间；另外，该开口线缆41可采用漆包线缆，这样可以节省费用，降低成本，在采用漆包线缆时，仅需在漆包线缆的端部镀上端子，即可实现与导电连接件42或另外的开口线缆41电连接的目的。在本实施例中，该开口线缆41的直径为1mm～5mm。In the above two implementations, the open cable 41 can be a U-shaped open cable, which can better match the outer contour of the magnetic core body 1 and save space; in addition, the open cable 41 Enameled cables can be used, which can save costs and reduce costs. When using enameled cables, only the terminals need to be plated on the ends of the enameled cables to achieve the purpose of electrical connection with the conductive connector 42 or another open cable 41 . In this embodiment, the diameter of the open cable 41 is 1mm˜5mm.

根据本申请的一个实施方式，该磁性元件还包括底板5，多个导电连接件42连接在底板5上，如图2所示，该底板5上开设有供第一线圈结构2的端头和第二线圈结构3的端头穿出的多个通孔51，以便第一线圈结构2的端头和第二线圈结构3的端头能够与外部的电器元件电连接。According to an embodiment of the present application, the magnetic element further includes a bottom plate 5, on which a plurality of conductive connectors 42 are connected. As shown in FIG. A plurality of through holes 51 pass through the ends of the second coil structure 3 so that the ends of the first coil structure 2 and the ends of the second coil structure 3 can be electrically connected with external electrical components.

另外，在本申请中，在第一线圈结构2和第二线圈结构3由多个开口线缆41和多个导电连接件42形成的结构中，在组装第一线圈结构2和第二线圈结构3的过程中，可将多个导电连接件42通过粘接的方式固定在底板5上，然后将磁芯本体1放置在多个导电连接件42上，之后通过定位夹具将各开口线缆41依次组装至磁芯本体1上并对应插设在导电连接件42上，最后将连接部位进行高温焊接即可。In addition, in this application, in the structure in which the first coil structure 2 and the second coil structure 3 are formed by a plurality of open cables 41 and a plurality of conductive connectors 42, when assembling the first coil structure 2 and the second coil structure 3, a plurality of conductive connectors 42 can be fixed on the bottom plate 5 by bonding, and then the magnetic core body 1 is placed on the plurality of conductive connectors 42, and then each opening cable 41 is fixed by a positioning jig. They are sequentially assembled on the magnetic core body 1 and correspondingly inserted on the conductive connector 42 , and finally the connecting parts are soldered at high temperature.

本申请的磁性元件，相对两个“半”形铁心组装的可支持100A额定电流的磁芯来说，整体体积减少30％，整体重量减少至少20％，其结构更加紧凑，该磁性元件可适用于通信、电动汽车、太阳能等技术领域的所需的功率水平。The magnetic element of the present application can reduce the overall volume by 30% and the overall weight by at least 20% compared to the magnetic core assembled with two "half" shaped cores that can support a rated current of 100A, and its structure is more compact. The magnetic element is applicable The required power level for communication, electric vehicles, solar energy and other technical fields.

另外，由于第一线圈结构2和第二线圈结构3在缠绕至磁芯本体1的过程中，未对磁芯本体1造成机械外力损伤，因此可以任意选择磁芯本体1，提高了产品的设计灵活度。In addition, since the first coil structure 2 and the second coil structure 3 do not cause mechanical damage to the magnetic core body 1 during the process of winding the magnetic core body 1, the magnetic core body 1 can be selected arbitrarily, which improves the design of the product. flexibility.

再有，开口线缆41与导电连接件42的连接方式采用高温焊接连接，可以获得更好的连接稳定性，且能适应恶劣的环境。Furthermore, the connection between the open cable 41 and the conductive connector 42 is connected by high-temperature welding, which can obtain better connection stability and can adapt to harsh environments.

本文引用的任何数字值都包括从下限值到上限值之间以一个单位递增的下值和上值的所有值，在任何下值和任何更高值之间存在至少两个单位的间隔即可。举例来说，如果阐述了一个部件的数量或过程变量(例如温度、压力、时间等)的值是从1到90，优选从20到80，更优选从30到70，则目的是为了说明该说明书中也明确地列举了诸如15到85、22到68、43到51、30到32等值。对于小于1的值，适当地认为一个单位是0.0001、0.001、0.01、0.1。这些仅仅是想要明确表达的示例，可以认为在最低值和最高值之间列举的数值的所有可能组合都是以类似方式在该说明书明确地阐述了的。Any numerical value cited herein includes all values from the lower value to the upper value in increments of one unit for the lower and upper values, with a separation of at least two units between any lower value and any higher value That's it. For example, if it is stated that a component quantity or process variable (such as temperature, pressure, time, etc.) has a value from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose Values such as 15 to 85, 22 to 68, 43 to 51, 30 to 32, etc. are also explicitly listed in the specification. For values less than 1, one unit is considered to be 0.0001, 0.001, 0.01, 0.1, as appropriate. These are merely examples intended to be expressly stated, and it is considered that all possible combinations of numerical values recited between the lowest value and the highest value are expressly set forth in this specification in a similar manner.

除非另有说明，所有范围都包括端点以及端点之间的所有数字。与范围一起使用的“大约”或“近似”适合于该范围的两个端点。因而，“大约20到30”旨在覆盖“大约20到大约30”，至少包括指明的端点。Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. "About" or "approximately" used with a range applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30", inclusive of at least the indicated endpoints.

披露的所有文章和参考资料，包括专利申请和出版物，出于各种目的通过援引结合于此。描述组合的术语“基本由…构成”应该包括所确定的元件、成分、部件或步骤以及实质上没有影响该组合的基本新颖特征的其他元件、成分、部件或步骤。使用术语“包含”或“包括”来描述这里的元件、成分、部件或步骤的组合也想到了基本由这些元件、成分、部件或步骤构成的实施方式。这里通过使用术语“可以”，旨在说明“可以”包括的所描述的任何属性都是可选的。All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of" describing a combination shall include the identified elements, ingredients, parts or steps as well as other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. Use of the terms "comprising" or "comprising" to describe a combination of elements, ingredients, parts or steps herein also contemplates an embodiment that consists essentially of these elements, ingredients, parts or steps. By using the term "may" herein, it is intended that inclusion of "may" in any of the described attributes is optional.

多个元件、成分、部件或步骤能够由单个集成元件、成分、部件或步骤来提供。另选地，单个集成元件、成分、部件或步骤可以被分成分离的多个元件、成分、部件或步骤。用来描述元件、成分、部件或步骤的公开“一”或“一个”并不说为了排除其他的元件、成分、部件或步骤。Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step may be divided into separate plural elements, ingredients, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not meant to exclude other elements, ingredients, components or steps.

应该理解，以上描述是为了进行图示说明而不是为了进行限制。通过阅读上述描述，在所提供的示例之外的许多实施方式和许多应用对本领域技术人员来说都将是显而易见的。因此，本教导的范围不应该参照上述描述来确定，而是应该参照所附权利要求以及这些权利要求所拥有的等价物的全部范围来确定。出于全面之目的，所有文章和参考包括专利申请和公告的公开都通过参考结合在本文中。在前述权利要求中省略这里公开的主题的任何方面并不是为了放弃该主体内容，也不应该认为发明人没有将该主题考虑为所公开的申请主题的一部分。It should be understood that the foregoing description is for purposes of illustration and not limitation. Many implementations and many applications other than the examples provided will be apparent to those of skill in the art from reading the above description. The scope of the present teachings, therefore, should be determined not with reference to the above description, but should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for completeness. Omission from the preceding claims of any aspect of the subject matter disclosed herein is not intended to be a disclaimer of that subject matter, nor should it be considered that the inventors did not consider the subject matter to be part of the disclosed subject matter of the application.

Claims

一种磁性元件，其中，所述磁性元件包括：A magnetic element, wherein the magnetic element comprises:

磁芯本体，具有内通道；The magnetic core body has an inner channel;

第一线圈结构和第二线圈结构，绕设在所述磁芯本体的两侧，所述第一线圈结构和/或所述第二线圈结构通过首尾相连的多个线缆拼接件绕设形成。The first coil structure and the second coil structure are wound on both sides of the magnetic core body, and the first coil structure and/or the second coil structure are formed by winding a plurality of cable splices connected end to end .
如权利要求1所述的磁性元件，其中，多个所述线缆拼接件包括多个开口线缆和多个导电连接件，各所述导电连接件连接在相邻的两个所述开口线缆之间。The magnetic element according to claim 1, wherein a plurality of said cable splices comprise a plurality of open cables and a plurality of conductive connectors, each of said conductive connectors is connected between two adjacent open wires between cables.
如权利要求1所述的磁性元件，其中，多个所述线缆拼接件包括首尾相连的多个开口线缆。The magnetic element of claim 1, wherein a plurality of said cable splices comprise a plurality of open cables connected end to end.
如权利要求2或3所述的磁性元件，其中，所述开口线缆为U型开口线缆。The magnetic element according to claim 2 or 3, wherein the open cable is a U-shaped open cable.
如权利要求2所述的磁性元件，其中，所述导电连接件具有靠近所述磁芯本体的内通道的内端、以及靠近所述磁芯本体的外壁的外端，所述开口线缆包括能***所述内通道的内***端、以及位于所述磁芯本体的外壁的外***端，所述外***端能与所述导电连接件的外端相接，所述内***端能与所述导电连接件的内端相接。The magnetic element according to claim 2, wherein said conductive connector has an inner end close to the inner channel of said magnetic core body, and an outer end close to the outer wall of said magnetic core body, said open cable comprising The inner insertion end that can be inserted into the inner channel, and the outer insertion end located on the outer wall of the magnetic core body, the outer insertion end can be connected to the outer end of the conductive connector, and the inner insertion end can be connected to the outer end of the magnetic core body. The inner ends of the conductive connectors are connected.
如权利要求5所述的磁性元件，其中，所述导电连接件的内端和其外端分别与两两相邻的所述开口线缆相接。The magnetic element according to claim 5, wherein the inner end and the outer end of the conductive connecting member respectively connect with two adjacent opening cables.
如权利要求5所述的磁性元件，其中，所述导电连接件的端部形成有连接槽，所述开口线缆的端部插接焊接于所述导电连接件的连接槽内。The magnetic element according to claim 5, wherein a connecting groove is formed at the end of the conductive connector, and the end of the open cable is inserted and welded in the connecting groove of the conductive connector.
如权利要求5所述的磁性元件，其中，所述导电连接件的横截面面积与所述开口线缆的横截面面积相等。The magnetic element according to claim 5, wherein the cross-sectional area of the conductive connector is equal to the cross-sectional area of the open wire.
如权利要求2或3所述的磁性元件，其中，所述开口线缆为漆包线缆。The magnetic element according to claim 2 or 3, wherein the open wire is an enamelled wire.
如权利要求2或3或8所述的磁性元件，其中，所述开口线缆的直径为1mm～5mm。The magnetic element according to claim 2, 3 or 8, wherein the diameter of the open wire is 1mm-5mm.
如权利要求2所述的磁性元件，其中，所述磁性元件还包括底板，多个所述导电连接件连接在所述底板上，所述底板上开设有供所述第一线圈结构的端头和所述第二线圈结构的端头穿出的多个通孔。The magnetic element according to claim 2, wherein the magnetic element further comprises a bottom plate, a plurality of the conductive connectors are connected to the bottom plate, and the bottom plate is provided with terminals for the first coil structure and a plurality of through holes passing through the ends of the second coil structure.