coil parts

A technology of coil components and coil conductors, applied in coil manufacturing, transformer/inductor parts, electrical components, etc., can solve problems such as increased specific resistance of external electrodes, obstruction of medium power supply, and deviation of coating thickness.

Active Publication Date: 2020-09-08
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the connection is delayed, the oxidation state of the surface of the magnetic body part changes or impurities etc. adhere to the surface of the magnetic body part, and the power supply from the medium is hindered, and the thickness of the plating layer between the coil parts may vary, and the specific resistance of the external electrode may occur. increase the problem

Method used

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Examples

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Embodiment Construction

[0032] Hereinafter, the coil component of the present invention will be described in detail with reference to the drawings. However, the shape, arrangement, etc. of the coil component and each component of the present embodiment are not limited to the illustrated examples.

[0033] exist figure 1 schematically shows a perspective view of the coil component 1 of this embodiment, and figure 2 A perspective view of the base body 6 of the coil component 1 is schematically shown in .

[0034] Such as figure 1 as well as figure 2 As shown, the coil component 1 of this embodiment has a substantially rectangular parallelepiped shape. Roughly speaking, the coil component 1 includes a magnetic body portion 11 , a coil conductor 21 embedded in the magnetic body portion, and external electrodes 31 , 32 . The magnetic body portion 11 and the coil conductor 21 embedded in the magnetic body portion constitute the base body 6 . The base body 6 has a substantially rectangular parallele...

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Abstract

The present invention provides a coil component having a coil conductor embedded in a magnetic body portion made of a metal material and a resin material and having an external electrode having favorable characteristics, and a method for manufacturing the same. The coil component has: a magnetic body part made of a metal material and a resin material; a coil conductor embedded in the magnetic body part; and a pair of external electrodes electrically connected to ends of the coil conductor. The exposed parts at both ends and the covered part covered with an insulating material between the exposed parts are configured, and the covered part is located on the inner side of the surface of the magnetic body part on which the external electrode is located.

Description

technical field [0001] The present invention relates to a coil component, and more specifically, to a coil component including a magnetic body portion and a coil conductor embedded in the magnetic body portion. Background technique [0002] In recent years, along with improvements in performance and miniaturization of electronic equipment, electronic components used in electronic equipment have also been required to be miniaturized. Coil components such as inductors are no exception, and various designs have been used to achieve miniaturization. [0003] For example, in the past, in order to reduce the resistance between the lead end of the coil conductor and the external terminal electrode, the wire was thickened to increase the contact area between the lead end of the coil conductor and the external terminal electrode. However, if this method is adopted, in order to obtain a predetermined inductance value This results in an increase in the size of the coil part. To solve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F17/04H01F27/29H01F27/28
CPCH01F17/04H01F27/2828H01F27/29H01F27/292H01F2017/048H01F27/2852H01F41/10H01G13/006H01F1/147H01F27/255H01F27/2804
Inventor 荒木建一
Owner MURATA MFG CO LTD
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