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Coil array component

A technology of coil arrays and parts, applied in coil manufacturing, parts of transformers/inductors, electrical components, etc., can solve problems such as insufficient insulation

Active Publication Date: 2020-02-11
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned coil array components are insulated by an insulating material between the two coils, but there is a possibility that sufficient insulation cannot be ensured when downsizing or using a metallic magnetic material as a magnetic body.

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0167] · Manufacture of magnetic sheet

[0168] An Fe-Si alloy powder having a D50 (cumulative percentage 50% equivalent particle size based on volume) of 5 μm was prepared. For the alloy powder, tetraethyl orthosilicate (TEOS) is used as the metal alkoxide in advance, and SiO of about 50nm is formed on the surface of the powder by the sol-gel method 2 film. A predetermined amount of alloy powder and epoxy resin were wet-mixed, formed into a sheet (thickness: 100 μm) by a doctor blade method, and a plurality of sheets were pressure-bonded to obtain a magnetic sheet.

[0169] · Preparation of photosensitive glass paste

[0170] Prepare borosilicate glass (SiO 2 -B 2 o 3 -K 2 O) series glass powder, the copolymer of methyl methacrylate and methacrylic acid (acrylic acid polymer), dipentaerythritol pentaacrylate (photosensitive monomer), dipropylene glycol monomethyl ether (solvent), 2,4-di Ethylthioxanthone (DETX), 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropan-1-on...

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Abstract

The invention provides a coil array component, which is more beneficial to miniaturization. A coil array component including an element assembly that includes a filler and a resin material, a first coil portion and a second coil portion that are embedded in the element assembly and that are composed of a first coil conductor and a second coil conductor, respectively, and four outer electrodes electrically connected to the first coil portion and the second coil portion. Also, the first coil conductor and the second coil conductor are covered with a glass layer.

Description

technical field [0001] The present disclosure relates to coil array components. Background technique [0002] As a so-called coil array component in which two coils are embedded in one body, a coil array component in which an insulating material is interposed between a primary coil and a secondary coil is known (Patent Document 1). [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 8-88126 [0004] In the aforementioned coil array component, two coils are insulated by an insulating material. However, there is a possibility that sufficient insulation cannot be ensured when downsizing or when a metallic magnetic material is used as a magnetic body. Contents of the invention [0005] An object of the present invention is to provide a coil array component which is advantageous for further miniaturization. [0006] This disclosure includes the following aspects. [0007] [1] A coil array part configured to have: [0008] a body comprising a filler and a r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/24H01F27/28H01F27/29H01F27/32H01F27/02H01F41/00H01F41/04H01F41/12
CPCH01F27/327H01F27/323H01F27/2804H01F27/24H01F27/292H01F27/022H01F41/00H01F41/04H01F41/122H01F41/127H01F41/041H01F2027/2809H01F17/0013H01F2017/0066H01F27/324H01F41/043H01F27/29
Inventor 葭中圭一今田胜久佐藤充浩川端良兵
Owner MURATA MFG CO LTD