WO2015158200A1 - 一种磁性元件的固定装置、环形变压器和环形电抗器 - Google Patents

一种磁性元件的固定装置、环形变压器和环形电抗器 Download PDF

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Publication number
WO2015158200A1
WO2015158200A1 PCT/CN2015/075108 CN2015075108W WO2015158200A1 WO 2015158200 A1 WO2015158200 A1 WO 2015158200A1 CN 2015075108 W CN2015075108 W CN 2015075108W WO 2015158200 A1 WO2015158200 A1 WO 2015158200A1
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Prior art keywords
component
fixing device
mounting member
magnetic
winding
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PCT/CN2015/075108
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English (en)
French (fr)
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克沃切夫斯基马雷克
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特富特科技(深圳)有限公司
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Priority claimed from CN201420179887.0U external-priority patent/CN203850129U/zh
Priority claimed from CN201410147967.2A external-priority patent/CN104979084A/zh
Application filed by 特富特科技(深圳)有限公司 filed Critical 特富特科技(深圳)有限公司
Publication of WO2015158200A1 publication Critical patent/WO2015158200A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support

Definitions

  • the present disclosure relates to the field of electronic product technologies, and in particular, to a magnetic device fixing device, a toroidal transformer, and a ring reactor.
  • Magnetic components are the most important in power electronic equipment. One of them, because they largely determine the performance, efficiency and size of the machine. Generally, magnetic components play the role of transformers, coupled inductors and inductors in power electronics. Therefore, the increase of system power and the limitation of volume pose great challenges to the design of magnetic components. The heat dissipation problem of magnetic components becomes a bottleneck.
  • the existing fixing method for large magnetic components usually causes a large pressure between the winding and the fixing device, and the fixing method also blocks the inner hole of the magnetic component, thereby causing the heat dissipation effect of the magnetic component to be unsatisfactory.
  • the technical problem to be solved by the present disclosure is to provide a fixing device for a magnetic component, a toroidal transformer and a toroidal reactor, which are used for solving the conventional fixing method for a larger magnetic component, which is usually used to fix the winding and the winding.
  • a large pressure is generated between the fixing devices, and the fixing method blocks the inner hole of the annular magnetic member, resulting in a problem that the heat dissipation effect is not satisfactory.
  • an embodiment of the present disclosure provides a fixing device for a magnetic component, the magnetic component including a toroidal core and a winding, wherein the fixing device includes:
  • At least one mounting component coupled to the first component
  • a support member that is coupled to the mounting member.
  • the first component surrounds an outer diameter surface of the toroidal core.
  • the mounting component is located outside the winding that completes winding, wherein the mounting component is perpendicular to an outer surface of the first component, and a surface of the mounting component surrounds the toroidal core
  • the enameled wires of the windings of the radial surface are parallel.
  • the first component is a metal fixing strap
  • the metal fixing strap is bent to form an outwardly protruding mounting component, and the mounting component locks the metal fixing strap and the toroidal core by welding tight.
  • the first component is a metal fixing strap
  • the mounting component is independent of the metal fixing strap
  • the mounting component width is consistent with the width of the metal fixing strap
  • the mounting component is welded and Metal straps are attached.
  • the first component is a plurality of metal fixing straps
  • the mounting component is formed by connecting a portion of the ends of the adjacent two metal fixing straps outwardly, and the mounting component is used to weld the metal The fixing strap is locked with the toroidal core.
  • the first component is a composite mold made of a plastic material or a composite material, and the combined mold includes a first portion and a second portion; the combined mold encloses the toroidal core inside.
  • the mounting part is integrally formed on the first portion of the combined mold.
  • the mounting member is provided with a terminal connecting portion for accommodating the terminal.
  • the support member is fixedly connected to the mounting member exposed outside the winding by screws or rivets.
  • an inner surface of the first component is in contact with an outer diameter surface of the toroidal core, and an outer surface of the first component is spaced apart from the winding.
  • An embodiment of the present disclosure further provides a toroidal transformer including a substrate, a magnetic component, and a fixing device;
  • the magnetic element comprises a toroidal core and a winding
  • the fixing device includes: a first portion surrounding the toroidal core and locked with the toroidal core a member; at least one mounting member coupled to the first member; and a support member coupled to the mounting member;
  • the winding surrounds the exterior of the toroidal core and the exterior of the first component
  • the support member is coupled to the substrate.
  • the toroidal transformer further includes a terminal; the terminal is connected to the magnetic element; and the terminal is placed at a terminal connection portion on the mounting member.
  • An embodiment of the present disclosure further provides an annular reactor including a substrate, a magnetic component, and a fixing device;
  • the magnetic element comprises a toroidal core and a winding
  • the fixing device includes: a first member surrounding the annular magnetic core and locked with the annular magnetic core; at least one mounting member connected to the first member; and a supporting member connected to the mounting member;
  • the winding surrounds the exterior of the toroidal core and the exterior of the first component
  • the support member is coupled to the substrate.
  • the annular reactor further includes a terminal; the terminal is connected to the magnetic element; and the terminal is placed at a terminal connection portion on the mounting member.
  • the magnetic component is fixed in a manner that does not block the air passage, thereby improving The heat dissipation effect of the magnetic component, and this fixing method does not exert pressure on the winding and the core.
  • FIG. 1 is a schematic view of a magnetic component mounted with a fixing device according to an embodiment of the present disclosure
  • FIG. 2 is a schematic cross-sectional view of the magnetic element according to an embodiment of the present disclosure
  • 3a is a schematic view of the mounting component of the first embodiment of the present disclosure
  • 3b is a schematic view of the mounting component of the second embodiment of the present disclosure.
  • Figure 3c is a schematic view of the mounting component of the third embodiment of the present disclosure.
  • 3d is a schematic view of the mounting component of the fourth embodiment of the present disclosure.
  • FIG. 4 is a schematic view of a magnetic component mounted with a metal fixing strap according to an embodiment of the present disclosure
  • FIG. 5 is a schematic view showing the connection between the mounting component and the first component according to Embodiment 1 of the present disclosure
  • FIG. 6 is a schematic view showing the connection between the mounting component and the first component according to Embodiment 2 of the present disclosure
  • FIG. 7 is a schematic view of a magnetic component mounted with a combined mold according to an embodiment of the present disclosure
  • Figure 8 is a schematic view of a magnetic component with a fixture and a terminal mounted in accordance with an embodiment of the present disclosure.
  • the present disclosure is directed to the conventional fixing method for a larger type of magnetic element, which generally causes a large pressure between the winding and the fixing device, and the fixing method blocks the inner hole of the annular magnetic element.
  • a problem that the heat dissipation effect is not ideal, and a fixing device for the magnetic component is provided.
  • the magnetic element comprises a toroidal core 1 and a winding 3 (the windings referred to herein may be one or more) surrounding the toroidal core 1, wherein the fixing means comprises: a surrounding a first part 2 of the toroidal core 1 , the winding 3 surrounding the outside of the toroidal core 1 and the outside of the first part 2; at least one mounting part 4 connected to the first part 2;
  • the support member 5 is connected to the support member 5, and the support member 5 is fixedly connected to the mounting member 4 by the locking device 6.
  • the connection between the support member 5 and the mounting member 4 is not limited to The mechanical connection of screws or rivets as shown in Fig. 1 can also be achieved by soldering or brazing, and the support member 5 is used to fix the magnetic member on the substrate.
  • the support member 5 shown in Fig. 1 is a channel of the shape of "L". It should be noted that the support member 5 is not limited to the shape and material as shown in Fig. 1, the support member 5 can also be made of different shapes and different types of materials.
  • the penetration of the inner hole of the magnetic element is ensured and improved.
  • the heat dissipation effect is also suitable for heavy-duty toroidal transformers and reactors.
  • the windings of high-power toroidal transformers and reactors On the outer diameter of the magnetic core 1, there is a gap between the winding 3 and the magnetic core 1.
  • the size of the gap depends on the diameter of the winding and the tension during winding, and for an enameled wire having a diameter larger than 3 mm, the gap usually has From 2 mm to 5 mm, the present disclosure utilizes this void space to place the first component 2, which is completely enclosed on the outer diameter of the magnetic core 1.
  • the type of the first component 2 depends on the size of the gap, and the first component 2 may be a metal fixing tape or a composite mold made of a plastic material or a composite material, and the thickness of the first component is from 1 mm to 5 mm. This thickness depends on the weight and volume of the annular magnetic element, i.e. for a heavier and bulky annular magnetic element, the first part 2 is to be relatively thicker if the gap allows.
  • the mounting members 4 are provided in plurality (and the mounting members 4 are generally arranged in a symmetrical manner), the number of mounting members being determined by the weight of the magnetic members.
  • the mounting member 4 disposed outside the first member 2 and the first member 2 together form a flange structure, and the mounting member 4 is perpendicular to the first member 2 The outer surface.
  • the first member 2 is completely surrounded and covers the outer diameter surface of the toroidal core 1; after the winding 3 is wound, the mounting member 4 is located at the winding 3 The outer portion, wherein the mounting member 4 is perpendicular to the outer surface of the first member 2, and the surface of the mounting member 4 is parallel to the enamel line of the winding 3 surrounding the outer diameter surface of the toroidal core 1.
  • the metal fixing strap is surrounded by the outer diameter of the annular magnetic core 1, and the metal fixing strap
  • the width is smaller than the height of the toroidal core 1, and the metal fixing band is bent (such as the bent portion 9 shown in FIG. 5) to form the outwardly protruding mounting member 4, and the mounting member 4 is welded
  • the first portions 10 shown in Figure 5 are joined together to effect locking of the metal retaining strips with the toroidal core 1.
  • the first portion 10 is a side end portion of the mounting member 4.
  • the metal fixing strap is surrounded by the outer diameter of the annular magnetic core 1, and the metal fixing strap has a width smaller than the annular magnetic core. Height of 1, wherein the mounting member 4 is independent of the metal fixing strap, and the mounting The width of the member 4 coincides with the width of the metal fixing band, and the mounting member 4 joins the second portions 11 shown in Fig. 6 by welding to achieve connection with the metal fixing tape.
  • the mounting component 4 is formed by connecting a portion of the ends of the adjacent two metal fixing straps outwardly, and the mounting component is 4
  • the first portion 10 shown in FIG. 5 is joined together by welding to achieve locking of the metal fixing band and the toroidal core 1.
  • connection of the first part and the second part of the first embodiment, the second embodiment and the third embodiment is preferably connected by soldering or brazing, and it should be noted that any way of achieving the connection and locking is It is within the scope of protection of the present disclosure.
  • the assembly step of using the metal fixing tape as the magnetic component of the fixing device is as follows: firstly, the metal fixing tape is completely surrounded by the outer diameter of the magnetic core, and the mounting member and the metal fixing tape and the magnetic body are welded, brazed or mechanically fixed. The core is locked and connected, and then the metal fixing strap, the mounting member, and the magnetic core are insulated, and then the winding is wound, and then the supporting member is connected to the mounting member exposed outside the winding (the connection manner is various) It can be connected by mechanical means such as screws and rivets, or by welding or brazing.
  • the first component 2 of the fourth embodiment of the present disclosure is a composite die 8 made of a plastic material or a composite material
  • the combination die 8 includes a first portion 81 and a second portion 82, the combination
  • the mold encloses the magnetic core 1 internally, and functions to completely electrically insulate the magnetic core 1 and the winding 3.
  • the first portion 81 is integrally formed with a mounting member 4 on which a hole for fixing the support member is provided.
  • the assembly step of using the plastic fixing device as the magnetic element of the fixing device is as follows: first, the plastic fixing device is completely surrounded by the outer diameter of the magnetic core, and then the winding is wound, and then the supporting member and the mounting member exposed outside the winding are mounted. connection.
  • the use of a metal fixing tape for a magnetic component used in a high-voltage environment has a risk of insulation, so that a plastic material or a composite material is fabricated.
  • the fixing device of the combined mold is more suitable for working under high pressure environment, so the fixing device of the combined mold which is made of metal fixing tape or plastic material or composite material when the magnetic component is fixed is to be used by the specific environment of the magnetic component. Decide.
  • the mounting component 4 is further provided with a terminal connection portion for accommodating the terminal 7 (the magnetic element is connected to the external component via the terminal 7), the terminal being fixedly connected to the terminal connection portion by mechanical means or welding or soldering.
  • the terminals may be provided in plurality in order to facilitate connection with an external device.
  • the fixing device does not generate any pressure on the winding, eliminates the risk of damaging the insulation, and the fixing device does not additionally generate loss, and the setting of the fixing device also improves the heat dissipation performance of the magnetic component. .

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

一种磁性元件的固定装置，该磁芯元件包括环形磁芯（1）和绕组（3），其中固定装置包括：包围环形磁芯的第一部件（2），绕组围绕在环形磁芯外部以及第一部件的外部；至少一个与第一部件连接的安装部件（4）；以及与安装部件相连的支撑部件（5）。该方案解决了现有对较大型的磁性元件固定时，所采用的固定方式会使绕组与固定装置之间产生较大压力，并且该固定方式会将环形磁性元件的内孔堵住，造成散热效果不理想的问题，通过在磁性元件的磁芯与绕组之间设置固定装置，再通过该固定装置将磁性元件固定在基板上，此种磁性元件固定方式，不会阻挡风道，提高了磁性元件的散热效果。

Description

一种磁性元件的固定装置、环形变压器和环形电抗器
相关申请的交叉引用
本申请主张在2014年4月14日在中国提交的中国专利申请号No.201410147967.2以及在2014年4月14日在中国提交的中国专利申请号No.201420179887.0的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及电子产品技术领域，特别涉及一种磁性元件的固定装置、环形变压器和环形电抗器。
背景技术
随着工业的快速发展，大型电力电子设备在各行业的应用越来越广泛，功率等级也越来越高，对设备体积的限制也越来越多，磁性元件是电力电子设备中最重要的部分之一，因为它们在很大程度上决定了整机的性能、效率以及尺寸。通常磁性元件在电力电子设备中扮演着变压器、耦合电感和电感的角色，因此系统功率的增加和体积的限制给磁性元件的设计带来很大的挑战，磁性元件的散热问题成为一个瓶颈。
现有的对大型磁性元件的固定方式通常会使绕组与固定装置之间产生较大压力，同时此种固定方式还会将磁性元件的内孔堵住，造成磁性元件的散热效果不理想。
发明内容
本公开要解决的技术问题是提供一种磁性元件的固定装置、环形变压器和环形电抗器，用于解决现有对于较大型的磁性元件在进行固定时，通常所采用的固定方式会使绕组与固定装置之间产生较大压力，并且所述固定方式会将环形磁性元件的内孔堵住，造成散热效果不理想的问题。
为了解决上述技术问题，本公开实施例提供一种磁性元件的固定装置，所述磁性元件包括环形磁芯和绕组，其中，所述固定装置包括：
包围所述环形磁芯的第一部件，所述绕组围绕在所述环形磁芯外部以及所述第一部件的外部；
至少一个与所述第一部件连接的安装部件；以及
与所述安装部件相连的支撑部件。
进一步地，所述第一部件包围所述环形磁芯的外径表面。
进一步地，所述安装部件位于完成绕线的所述绕组的外部，其中，所述安装部件垂直于所述第一部件的外表面，且所述安装部件的表面与包围所述环形磁芯外径表面的绕组的漆包线相平行。
进一步地，所述第一部件为一条金属固定带，所述金属固定带经弯折形成向外突起的安装部件，且所述安装部件通过焊接将所述金属固定带与所述环形磁芯锁紧。
进一步地，所述第一部件为一条金属固定带，所述安装部件独立于所述金属固定带，且所述安装部件宽度与所述金属固定带宽度一致，所述安装部件通过焊接与所述金属固定带连接。
进一步地，所述第一部件为多条金属固定带，所述安装部件由相邻两条金属固定带的末端向外延伸出的一部分相连而形成，且所述安装部件通过焊接将所述金属固定带与所述环形磁芯锁紧。
进一步地，所述第一部件为塑料材料或者复合材料制作而成的组合模，所述组合模包括第一部分和第二部分；所述组合模将所述环形磁芯包围在内部。
进一步地，所述组合模的第一部分上一体成型有所述安装部件。
进一步地，所述安装部件上设置有用于安放端子的端子连接部。
进一步地，所述支撑部件与露在所述绕组外面的所述安装部件通过螺丝或者铆钉固定连接。
进一步地，所述第一部件的内表面与所述环形磁芯的外径表面接触，所述第一部件的外表面与所述绕组间隔。
本公开实施例还提供一种环形变压器包括基板、磁性元件和固定装置；
其中，所述磁性元件包括环形磁芯和绕组；
所述固定装置包括：包围所述环形磁芯并与所述环形磁芯锁紧的第一部 件；至少一个与所述第一部件连接的安装部件；以及与所述安装部件相连的支撑部件；
所述绕组围绕在所述环形磁芯外部以及所述第一部件的外部；
所述支撑部件与所述基板连接。
进一步地，所述环形变压器还包括端子；所述端子与所述磁性元件连接；所述端子安放在所述安装部件上的端子连接部。
本公开实施例还提供一种环形电抗器包括基板、磁性元件和固定装置；
其中，所述磁性元件包括环形磁芯和绕组；
所述固定装置包括：包围所述环形磁芯并与所述环形磁芯锁紧的第一部件；至少一个与所述第一部件连接的安装部件；以及与所述安装部件相连的支撑部件；
所述绕组围绕在所述环形磁芯外部以及所述第一部件的外部；
所述支撑部件与所述基板连接。
进一步地，所述环形电抗器还包括端子；所述端子与所述磁性元件连接；所述端子安放在所述安装部件上的端子连接部。
本公开的上述技术方案的有益效果如下：
上述方案中，通过在磁性元件的磁芯与绕组之间设置固定装置，并通过所述固定装置将所述磁性元件固定在基板上，此种磁性元件固定方式，不会阻挡风道，提高了磁性元件的散热效果，并且此种固定方式不会对绕组和磁芯产生压力。
附图说明
图1为本公开实施例的安装有固定装置的磁性元件示意图；
图2为本公开实施例的所述磁性元件剖面示意图；
图3a为本公开实施例一的所述安装部件示意图；
图3b为本公开实施例二的所述安装部件示意图；
图3c为本公开实施例三的所述安装部件示意图；
图3d为本公开实施例四的所述安装部件示意图；
图4为本公开实施例的安装有金属固定带的磁性元件示意图；
图5为本公开实施例一的安装部件与第一部件的连接示意图；
图6为本公开实施例二的安装部件与第一部件的连接示意图；
图7为本公开实施例的安装有组合模的磁性元件示意图；
图8为本公开实施例的安装有固定装置和端子的磁性元件示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
本公开针对现有对于较大型的磁性元件在进行固定时，通常所采用的固定方式会使绕组与固定装置之间产生较大压力，并且所述固定方式会将环形磁性元件的内孔堵住，造成散热效果不理想的问题，提供一种磁性元件的固定装置。
如图1所示，所述磁性元件包括环形磁芯1和围绕在环形磁芯1外部的绕组3(这里所说的绕组可以为一个或多个)，其中，所述固定装置包括：包围所述环形磁芯1的第一部件2，所述绕组3围绕在环形磁芯1外部以及所述第一部件2的外部；至少一个与所述第一部件2连接的安装部件4；与所述安装部件4相连的支撑部件5，所述支撑部件5通过锁紧装置6实现与安装部件4的固定连接(应当说明的是，所述支撑部件5与所述安装部件4的连接并不局限于如图1所示的螺丝或铆钉等机械的连接方式，二者还可以通过焊接、钎焊的方式实现连接)，所述支撑部件5用于将所述磁性元件固定在基板上。
图1中所示的所述支撑部件5是形状为“L”型的槽钢，应当说明的是，所述支撑部件5并不局限于如图1所示的形状与材质，所述支撑部件5也可由不同形状、不同种类的材料制作而成。
本公开上述实施例，通过在磁性元件的磁芯1与绕组3之间设置固定装置，并通过所述固定装置将所述磁性元件固定在基板上，保证了磁性元件内孔的通透，提高了散热效果，同时此种固定装置设置方式特别适用于重型的环形变压器和电抗器。
如图2所示，应当说明的是，大功率的环形变压器和电抗器的绕组，在 磁芯1的外径上，绕组3与磁芯1之间是有空隙的，空隙的大小取决于绕组线径的大小及绕线过程中张力，而对于直径大于3mm的漆包线，这个空隙通常有2mm至5mm，本公开便是利用此空隙空间放置所述第一部件2，所述第一部件2完全包围在所述磁芯1的外径上。所述第一部件2的类型取决于空隙的大小，所述第一部件2可以为金属固定带或者是塑料材料或者复合材料制作而成的组合模，并且第一部件的厚度从1mm到5mm，这个厚度取决于环形磁性元件的重量和体积，即对于较重和体积较大的环形磁性元件，在所述空隙允许的情况下，所述第一部件2要设置的相对厚一些。
如图3a所示，应当说明的是，对于重量较轻的磁性元件，可以只设置一个安装部件4即可；而对于较重的磁性元件，在一个安装部件4不足以固定所述磁性元件时，如图3b、3c和3d所示，所述安装部件4要设置多个(并且所述安装部件4一般以对称方式设置)，具体的安装部件的设置数量由磁性元件的重量决定。
继续如图3a、3b、3c和3d所示，设置在第一部件2外部的安装部件4与第一部件2共同构成了法兰结构，并且所述安装部件4垂直于所述第一部件2的外表面。
进一步地，如图4所示，所述第一部件2完全包围，覆盖于所述环形磁芯1的外径表面上；在绕组3完成绕线后，所述安装部件4位于所述绕组3的外部，其中，所述安装部件4垂直于与所述第一部件2的外表面，且所述安装部件4的表面与包围所述环形磁芯1外径表面的绕组3的漆包线相平行。
继续如图4所示，本公开实施例一的所述第一部件2为一条金属固定带时，所述金属固定带包围在所述环形磁芯1的外径上，并且所述金属固定带宽度小于所述环形磁芯1的高度，所述金属固定带经弯折(如图5中所示的弯折部位9)形成向外突起的安装部件4，且所述安装部件4通过焊接将图5中所示的第一部位10连接在一起，实现所述金属固定带与所述环形磁芯1的锁紧。其中，所述第一部位10为所述安装部件4的侧面端部。
本公开实施例二的所述第一部件2为一条金属固定带时，所述金属固定带包围在所述环形磁芯1的外径上，并且所述金属固定带宽度小于所述环形磁芯1的高度，其中，所述安装部件4独立于所述金属固定带，且所述安装 部件4的宽度与所述金属固定带的宽度一致，所述安装部件4通过焊接将图6中所示的第二部位11连接在一起，实现与所述金属固定带的连接。
本公开实施例三的所述第一部件2为多条金属固定带时，所述安装部件4由相邻两条金属固定带的末端向外延伸出的一部分相连而形成，且所述安装部件4通过焊接将图5中所示的第一部位10连接在一起，实现所述金属固定带与所述环形磁芯1的锁紧。
上述实施例一、实施例二和实施例三的第一部位和第二部位的连接，优选为通过焊接或钎焊的方式实现连接，应当说明的是，任何实现此连接和锁紧的方式都属于本公开的保护范围。
使用所述金属固定带作为固定装置的磁性元件的组装步骤为：首先将金属固定带完全包围在磁芯的外径上，通过焊接、钎焊或机械固定方式将安装部件以及金属固定带与磁芯锁紧并连接起来，然后对金属固定带、安装部件以及磁芯进行绝缘处理，然后进行绕组的绕制，之后将支撑部件与露在绕组外面的安装部件连接(所述连接方式有多种，可以通过螺丝、铆钉等机械的连接方式，还可以通过焊接、钎焊的方式实现连接)。
如图7所示，本公开实施例四的所述第一部件2为塑料材料或者复合材料制作而成的组合模8，所述组合模8包括第一部分81和第二部分82，所述组合模将所述磁芯1包围在内部，其作用是对磁芯1和绕组3进行完全电气绝缘。应当说明的是所述第一部分81上一体成型有安装部件4，所述安装部件4上设置有用于固定所述支撑部件的孔位。
使用所述塑料固定装置作为固定装置的磁性元件的组装步骤为：首先塑料固定装置完全包围在磁芯的外径上，然后进行绕组的绕制，之后将支撑部件与露在绕组外面的安装部件连接。
结合上述实施例一、实施例二、实施例三和实施例四，应当说明的是，对运用在高压环境下的磁性元件，采用金属固定带将具有绝缘风险，因此塑料材料或者复合材料制作而成的组合模的固定装置更适合在高压环境下工作，因此在磁性元件固定时是采用金属固定带还是塑料材料或者复合材料制作而成的组合模的固定装置要由磁性元件具体的使用环境来决定。
如图1和图8对比所示，本公开实施例的所述固定装置，所述安装部件 4上还设置有用于安放端子7(所述磁性元件通过端子7实现与外部元件的连接)的端子连接部，所述端子通过机械方式或焊接或钎焊的方式实现与端子连接部的固定连接，应当说明的是，为了方便与外部器件的连接，所述端子可以设置为多个。
本公开上述实施例，所述固定装置不会对绕组产生任何压力，消除了损坏绝缘的风险，并且此固定装置不会额外产生损耗，同时此种固定装置的设置还改善了磁性元件的散热性能。
以上所述的是本公开的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述原理前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (15)

  1. 一种磁性元件的固定装置，所述磁性元件包括环形磁芯和绕组，其中，所述固定装置包括：
    包围所述环形磁芯的第一部件，所述绕组围绕在所述环形磁芯外部以及所述第一部件的外部；
    至少一个与所述第一部件连接的安装部件；以及
    与所述安装部件相连的支撑部件。
  2. 根据权利要求1所述的固定装置，其中，所述第一部件包围所述环形磁芯的外径表面。
  3. 根据权利要求2所述的固定装置，其中，所述安装部件位于完成绕线的所述绕组的外部，其中，所述安装部件垂直于所述第一部件的外表面，且所述安装部件的表面与包围所述环形磁芯外径表面的绕组的漆包线相平行。
  4. 根据权利要求3所述的固定装置，其中，所述第一部件为一条金属固定带，所述金属固定带经弯折形成向外突起的安装部件，且所述安装部件通过焊接将所述金属固定带与所述环形磁芯锁紧。
  5. 根据权利要求3所述的固定装置，其中，所述第一部件为一条金属固定带，所述安装部件独立于所述金属固定带，且所述安装部件宽度与所述金属固定带宽度一致，所述安装部件通过焊接与所述金属固定带连接。
  6. 根据权利要求3所述的固定装置，其中，所述第一部件为多条金属固定带，所述安装部件由相邻两条金属固定带的末端向外延伸出的一部分相连而形成，且所述安装部件通过焊接将所述金属固定带与所述环形磁芯锁紧。
  7. 根据权利要求3所述的固定装置，其中，所述第一部件为塑料材料或者复合材料制作而成的组合模，所述组合模包括第一部分和第二部分；所述组合模将所述环形磁芯包围在内部。
  8. 根据权利要求7所述的固定装置，其中，所述组合模的第一部分上一体成型有所述安装部件。
  9. 根据权利要求1所述的固定装置，其中，所述安装部件上设置有用于安放端子的端子连接部。
  10. 根据权利要求1所述的固定装置，其中，所述支撑部件与露在所述绕组外面的所述安装部件通过螺丝或者铆钉固定连接。
  11. 根据权利要求1所述的固定装置，其中，所述第一部件的内表面与所述环形磁芯的外径表面接触，所述第一部件的外表面与所述绕组间隔。
  12. 一种环形变压器包括基板、磁性元件和固定装置；
    其中，所述磁性元件包括环形磁芯和绕组；
    所述固定装置包括：包围所述环形磁芯并与所述环形磁芯锁紧的第一部件；至少一个与所述第一部件连接的安装部件；以及与所述安装部件相连的支撑部件；
    所述绕组围绕在所述环形磁芯外部以及所述第一部件的外部；
    所述支撑部件与所述基板连接。
  13. 根据权利要求12所述的环形变压器，其中，所述环形变压器还包括端子；所述端子与所述磁性元件连接；所述端子安放在所述安装部件上的端子连接部。
  14. 一种环形电抗器包括基板、磁性元件和固定装置；
    其中，所述磁性元件包括环形磁芯和绕组；
    所述固定装置包括：包围所述环形磁芯并与所述环形磁芯锁紧的第一部件；至少一个与所述第一部件连接的安装部件；以及与所述安装部件相连的支撑部件；
    所述绕组围绕在所述环形磁芯外部以及所述第一部件的外部；
    所述支撑部件与所述基板连接。
  15. 根据权利要求14所述的环形电抗器，其中，所述环形电抗器还包括端子；所述端子与所述磁性元件连接；所述端子安放在所述安装部件上的端子连接部。
PCT/CN2015/075108 2014-04-14 2015-03-26 一种磁性元件的固定装置、环形变压器和环形电抗器 WO2015158200A1 (zh)

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