WO2016127683A1 - 一种耐高温径向异性磁环 - Google Patents

一种耐高温径向异性磁环 Download PDF

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Publication number
WO2016127683A1
WO2016127683A1 PCT/CN2015/095046 CN2015095046W WO2016127683A1 WO 2016127683 A1 WO2016127683 A1 WO 2016127683A1 CN 2015095046 W CN2015095046 W CN 2015095046W WO 2016127683 A1 WO2016127683 A1 WO 2016127683A1
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WO
WIPO (PCT)
Prior art keywords
magnetic ring
high temperature
coating
coating layer
thickness
Prior art date
Application number
PCT/CN2015/095046
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English (en)
French (fr)
Inventor
卞文进
Original Assignee
海安县巨力磁材有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 海安县巨力磁材有限责任公司 filed Critical 海安县巨力磁材有限责任公司
Publication of WO2016127683A1 publication Critical patent/WO2016127683A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]

Definitions

  • the invention relates to a high temperature resistant radial anisotropic magnetic ring, belonging to the technical field of magnetic materials.
  • the magnetic ring is a new type of interference suppressing device with low cost and good quality. It is made of high magnetic permeability material and is infiltrated with other metal or magnesium, zinc, nickel and other metals at 2000 °C. It is a commonly used anti-interference component in electronic circuits, has a certain impedance characteristic, and has a good suppression effect on high frequency noise. Applicable to computer monitors, printers, copiers, digital cameras, communication equipment, household appliances, communication power, cable, power cord, USB cable series anti-interference effect. Its function is equivalent to a low-pass filter, which better solves the problem of high-frequency interference suppression of power lines, signal lines and connectors. Moreover, it has a series of advantages such as being simple, convenient, effective, and occupying a small space. It is an economical, simple and effective method to suppress electromagnetic interference (EMI) with an anti-interference magnetic ring.
  • EMI electromagnetic interference
  • the magnet Under certain conditions of use, if the magnet is subjected to a higher temperature, it will cause a decrease in magnetic properties, thus increasing the high temperature resistance of the magnet.
  • the high temperature resistant radial anisotropic magnetic ring of the invention comprises, in order from the inside to the outside, a magnetic ring body, an insulating coating and a high temperature resistant coating, wherein the magnetic ring body is a neodymium iron boron magnetic ring, and the insulating coating
  • the layer is an epoxy coating
  • the high temperature resistant coating is a silicone coating
  • the epoxy coating has a thickness of 100-200 microns
  • the silicone coating has a thickness of 100-200 microns.
  • the thickness of the epoxy coating is 1:1 with the thickness of the silicone coating.
  • the high temperature resistant radial anisotropic magnetic ring of the present invention has the technical effect that even if the magnet is subjected to a relatively high temperature, the magnetic drop does not occur.
  • Figure 1 is a schematic view showing the structure of the present invention.
  • 1 is a magnetic ring body
  • 2 is an insulating coating
  • 3 is a high temperature resistant coating.
  • the high temperature resistant radial anisotropic magnetic ring of the embodiment is composed of a magnetic ring body, an insulating coating and a high temperature resistant coating from the inside to the outside, and the magnetic ring body is a neodymium iron boron magnetic ring, and the insulation is
  • the coating is an epoxy coating and the high temperature coating is a silicone coating.
  • the epoxy coating has a thickness of 100 microns; the silicone coating has a thickness of 100 microns.
  • the high temperature resistant radial anisotropic magnetic ring of the embodiment is composed of a magnetic ring body, an insulating coating and a high temperature resistant coating from the inside to the outside, and the magnetic ring body is a neodymium iron boron magnetic ring, and the insulation is
  • the coating is an epoxy coating and the high temperature coating is a silicone coating.
  • the epoxy coating has a thickness of 200 microns; the silicone coating has a thickness of 200 microns.
  • the high temperature resistant radial anisotropic magnetic ring of the embodiment is composed of a magnetic ring body, an insulating coating and a high temperature resistant coating from the inside to the outside, and the magnetic ring body is a neodymium iron boron magnetic ring, and the insulation is
  • the coating is an epoxy coating and the high temperature coating is a silicone coating.
  • the epoxy coating has a thickness of 150 microns; the silicone coating has a thickness of 150 microns.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Soft Magnetic Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

本发明提供了一种耐高温径向异性磁环，从内到外，依次由磁环本体、绝缘涂层和耐高温涂层组成，所述的磁环本体为钕铁硼磁环，所述的绝缘涂层为环氧涂层，所述的耐高温涂层为有机硅涂层，所述的环氧涂层的厚度为100-200微米，所述的有机硅涂层的厚度为100-200微米。本发明的耐高温径向异性磁环，具有如下技术效果：即使磁体受到较强的腐蚀，也不会引起磁性下降。

Description

一种耐高温径向异性磁环 技术领域
本发明涉及一种耐高温径向异性磁环，属于磁性材料技术领域。
背景技术
磁环是一种新型的价廉物美的干扰抑制器件，是利用高导磁性材料,渗合其他一种或多种镁、锌、镍等金属,在2000℃烧聚而成。它是电子电路中常用的抗干扰元件,有一定的阻抗特性,对于高频噪声有很好的抑制作用。适用于电脑显示器、打印机、复印机、数码相机、通讯设备、家用电器、通讯电源、排线、电源线、USB线系列抗干扰效果。其作用相当于低通滤波器,较好地解决了电源线,信号线和连接器的高频干扰抑制问题。而且,具有使用简单、方便、有效,占用空间不大等一系列优点。用抗千扰磁环来抑制电磁干扰(EMI),是经济简便而有效的方法。
在一定的使用环境下，如果磁体受到较高的温度，会引起磁性下降，因此提高磁体的耐高温性。
发明内容
本发明的目的是克服现有技术的不足之处，提供一种耐高温径向异性磁环。
本发明的耐高温径向异性磁环，从内到外，依次由磁环本体、绝缘涂层和耐高温涂层组成，所述的磁环本体为钕铁硼磁环，所述的绝缘涂层为环氧涂层，所述的耐高温涂层为有机硅涂层，所述的环氧涂层的厚度为100-200微米；所述的有机硅涂层的厚度为100-200微米。
所述的环氧涂层的厚度与有机硅涂层的厚度为1：1。
本发明的耐高温径向异性磁环，具有如下技术效果：即使磁体受到较高的温度，也不会引起磁性下降。
附图说明
图1本发明的结构示意图。
其中，1为磁环本体，2为绝缘涂层，3为耐高温涂层。
具体实施方式
实施例1
本实施例的耐高温径向异性磁环，从内到外，依次由磁环本体、绝缘涂层和耐高温涂层组成，所述的磁环本体为钕铁硼磁环，所述的绝缘涂层为环氧涂层，所述的耐高温涂层为有机硅涂层。
所述的环氧涂层的厚度为100微米；所述的有机硅涂层的厚度为100微米。
实施例2
本实施例的耐高温径向异性磁环，从内到外，依次由磁环本体、绝缘涂层和耐高温涂层组成，所述的磁环本体为钕铁硼磁环，所述的绝缘涂层为环氧涂层，所述的耐高温涂层为有机硅涂层。
所述的环氧涂层的厚度为200微米；所述的有机硅涂层的厚度为200微米。
实施例3
本实施例的耐高温径向异性磁环，从内到外，依次由磁环本体、绝缘涂层和耐高温涂层组成，所述的磁环本体为钕铁硼磁环，所述的绝缘涂层为环氧涂层，所述的耐高温涂层为有机硅涂层。
所述的环氧涂层的厚度为150微米；所述的有机硅涂层的厚度为150微米。

Claims (2)

  1. 一种耐高温径向异性磁环，其特征在于，从内到外，依次由磁环本体、绝缘涂层和耐高温涂层组成，所述的磁环本体为钕铁硼磁环，所述的绝缘涂层为环氧涂层，所述的耐高温涂层为有机硅涂层，所述的环氧涂层的厚度为100-200微米，所述的有机硅涂层的厚度为100-200微米。
  2. 根据权利要求1所述的耐高温径向异性磁环，其特征在于，所述的环氧涂层的厚度与有机硅涂层的厚度为1：1。
PCT/CN2015/095046 2015-02-11 2015-11-19 一种耐高温径向异性磁环 WO2016127683A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN104575923A (zh) * 2015-02-11 2015-04-29 海安县巨力磁材有限责任公司 一种耐高温径向异性磁环
CN105070459A (zh) * 2015-08-10 2015-11-18 海安县巨力磁材有限责任公司 一种表面防锈蚀径向异性磁环
CN107588033A (zh) * 2017-09-25 2018-01-16 青岛金立磁性材料有限公司 一种用于吊扇的塑磁环

Citations (3)

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CN102041506A (zh) * 2009-10-13 2011-05-04 北京中科三环高技术股份有限公司 永磁材料的表面处理方法
CN102653643A (zh) * 2012-04-24 2012-09-05 包头稀土研究院 一种提高钕铁硼磁体耐蚀性能的锌基复合涂层
CN104575923A (zh) * 2015-02-11 2015-04-29 海安县巨力磁材有限责任公司 一种耐高温径向异性磁环

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CN102041506A (zh) * 2009-10-13 2011-05-04 北京中科三环高技术股份有限公司 永磁材料的表面处理方法
CN102653643A (zh) * 2012-04-24 2012-09-05 包头稀土研究院 一种提高钕铁硼磁体耐蚀性能的锌基复合涂层
CN104575923A (zh) * 2015-02-11 2015-04-29 海安县巨力磁材有限责任公司 一种耐高温径向异性磁环

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