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CN112655060A - 一种一体成型电感及其制作方法 - Google Patents

一种一体成型电感及其制作方法 Download PDF

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CN112655060A
CN112655060A CN202080002808.7A CN202080002808A CN112655060A CN 112655060 A CN112655060 A CN 112655060A CN 202080002808 A CN202080002808 A CN 202080002808A CN 112655060 A CN112655060 A CN 112655060A
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magnetic core
coil
core plate
soft magnetic
magnetic material
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CN112655060B (zh
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余鑫树
李有云
夏胜程
姚泽鸿
洪瑜鹏
王莹莹
苏强
易万和
车鑫
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Shenzhen Sunlord Electronics Co Ltd
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    • 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
    • H01F27/02—Casings
    • H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
    • 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
    • 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
    • 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
    • H01F1/12—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 soft-magnetic materials
    • H01F1/14—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 soft-magnetic materials metals or alloys
    • H01F1/20—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • 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
    • H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
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    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/255—Magnetic cores made from particles
    • H—ELECTRICITY
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    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2847—Sheets; Strips
    • H01F27/2852—Construction of conductive connections, of leads
    • 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
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F27/292—Surface mounted devices
    • 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
    • H01F41/005—Impregnating or encapsulating
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    • 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • 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
    • H01F41/04—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 for manufacturing coils
    • H01F41/06—Coil winding
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    • 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
    • H01F41/04—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 for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/076—Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire
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    • 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
    • H01F41/04—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 for manufacturing coils
    • H01F41/10—Connecting leads to windings
    • 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
    • H01F41/04—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 for manufacturing coils
    • H01F41/12—Insulating of windings
    • 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
    • H01F2017/048—Fixed inductances of the signal type with magnetic core with encapsulating core, e.g. made of resin and magnetic powder

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

一种一体成型电感及其制作方法，该方法包括：由软磁材料烧结制成具有多个凹槽的磁芯板，每个凹槽中形成有磁芯中柱；将空心线圈分别装入多个凹槽中，磁芯中柱穿入线圈中，线圈端子留在凹槽外；将装有线圈的磁芯板放入成型模具中，加入流体状态的软磁材料，通过压制使流体状态的软磁材料一体成型在磁芯板上；使压制好的磁芯板中含有的线圈的两个端子暴露，并对应于各个线圈，将磁芯板切割成多个半成品电感；用绝缘材料将半成品电感包覆，形成绝缘包覆层，仅暴露出线圈的两个端子；在绝缘包覆层的表面暴露有线圈端子的区域进行金属化而形成一体成型电感的电极。由此，本发明提供了一种尺寸超小、超薄、高可靠性的一体成型电感及制作方法。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN202080002808.7A 2020-11-17 2020-11-17 一种一体成型电感及其制作方法 Active CN112655060B (zh)

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Cited By (6)

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CN113871125A (zh) * 2021-09-23 2021-12-31 中国科学院宁波材料技术与工程研究所 一体化柔性微纳电感及其制备方法
CN113889323A (zh) * 2021-09-30 2022-01-04 江苏蓝沛新材料科技有限公司 一种蚀刻线路超小一体成型电感的制备方法及电感
CN113963928A (zh) * 2021-11-30 2022-01-21 横店集团东磁股份有限公司 一种功率电感及其制备方法
CN115206643A (zh) * 2022-05-17 2022-10-18 东莞市三体微电子技术有限公司 一种集成型小尺寸功率电感及其制造方法
CN117790165A (zh) * 2023-12-12 2024-03-29 北半球技术(苏州)有限公司 一种耦合电感的制造方法及耦合电感
WO2024082575A1 (zh) * 2022-10-17 2024-04-25 横店集团东磁股份有限公司 一种功率电感及其制备方法

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CN113410037B (zh) * 2021-05-28 2022-09-13 深圳顺络电子股份有限公司 磁性器件及其制备方法
CN113488305B (zh) * 2021-06-08 2024-04-09 昆山磁通新材料科技有限公司 粘接剂、一体成型电感器及制备方法
CN113963927A (zh) * 2021-11-24 2022-01-21 横店集团东磁股份有限公司 一种一体成型电感及其制备方法
CN114360861A (zh) * 2021-12-31 2022-04-15 宁波中科毕普拉斯新材料科技有限公司 一种贴片式功率电感及其制备方法
CN115295302A (zh) * 2022-06-27 2022-11-04 深圳市信维通信股份有限公司 一种多层纳米晶电感器及其制备方法
CN116168942A (zh) * 2022-12-07 2023-05-26 江苏蓝沛新材料科技有限公司 一种功率电感制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113871125A (zh) * 2021-09-23 2021-12-31 中国科学院宁波材料技术与工程研究所 一体化柔性微纳电感及其制备方法
CN113889323A (zh) * 2021-09-30 2022-01-04 江苏蓝沛新材料科技有限公司 一种蚀刻线路超小一体成型电感的制备方法及电感
CN113963928A (zh) * 2021-11-30 2022-01-21 横店集团东磁股份有限公司 一种功率电感及其制备方法
WO2023098315A1 (zh) * 2021-11-30 2023-06-08 横店集团东磁股份有限公司 一种功率电感及其制备方法
CN115206643A (zh) * 2022-05-17 2022-10-18 东莞市三体微电子技术有限公司 一种集成型小尺寸功率电感及其制造方法
CN115206643B (zh) * 2022-05-17 2023-05-30 东莞市三体微电子技术有限公司 一种集成型小尺寸功率电感及其制造方法
WO2024082575A1 (zh) * 2022-10-17 2024-04-25 横店集团东磁股份有限公司 一种功率电感及其制备方法
CN117790165A (zh) * 2023-12-12 2024-03-29 北半球技术(苏州)有限公司 一种耦合电感的制造方法及耦合电感

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