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electronic components

A technology of electronic components and components, applied in electrical components, transformer/inductor components, circuits, etc., can solve the problems of weakened coupling and deterioration of signal transmission characteristics, so as to suppress the degradation of signal quality, reduce deterioration, and enhance coupling Effect

Active Publication Date: 2020-11-24
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the coupling between the first coil and the second coil weakens, resulting in deterioration of the signal transmission characteristic Sdd21

Method used

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no. 1 approach

[0060] figure 1 It is a perspective view which shows the electronic component which concerns on 1st Embodiment of this invention. figure 2 is a cross-sectional view of an electronic component. image 3 It is an exploded perspective view of an electronic part. Such as figure 1 , figure 2 , image 3 As shown, the electronic component 10 has: a laminated body 1, a common mode choke coil 2 provided in the laminated body 1, an inner ground electrode 60 provided in the laminated body 1, and a first ground terminal 51 connected to the inner ground electrode 60 , the second ground terminal 52 .

[0061] The electronic component 10 is electrically connected to the mounting substrate. The electronic component 10 is mounted, for example, in electronic equipment such as a personal computer, a DVD player, a digital camera, a TV, a mobile phone, and an electric vehicle.

[0062] The laminated body 1 includes a plurality of laminated insulating layers. Specifically, the laminated...

no. 2 approach

[0093] Figure 5 It is a YZ cross-sectional view showing the second embodiment of the electronic component of the present invention. The second embodiment differs from the first embodiment in the structure in which the outer ground electrode is provided. Hereinafter, this different configuration will be described. In addition, in the second embodiment, the same reference numerals as those in the first embodiment denote the same configurations as in the first embodiment, and thus descriptions thereof are omitted.

[0094] Such as Figure 5 As shown, in the electronic component 10A of the second embodiment, one of the second coils 221 is disposed at the uppermost position in the stacking direction of the first coil 211 to the second coil 222, and the second coil 221 is placed outside the stacking direction ( The upper side) is provided with an outer ground electrode 61 facing the second coil 221 . The outer ground electrode 61 is arranged inside the laminated body 1 (nonmagn...

no. 3 approach

[0101] Figure 7 It is a YZ cross-sectional view showing the third embodiment of the electronic component of the present invention. The third embodiment differs from the first embodiment in the structure in which the outer ground electrodes are provided. Hereinafter, this different configuration will be described. In addition, in the third embodiment, the same reference numerals as those in the first embodiment denote the same configurations as in the first embodiment, and thus descriptions thereof are omitted.

[0102] Such as Figure 7 As shown, in the electronic component 10B of the third embodiment, the second coils 221 and 222 are arranged at the uppermost and lowermost positions in the stacking direction of the first coil 211 to the second coil 222 . A first outer ground electrode 61 facing the second coil 221 is provided on the outer side (upper side) of the one second coil 221 in the stacking direction. A second outer ground electrode 62 facing the second coil 222 ...

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PUM

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Abstract

The present invention provides an electronic component capable of reducing degradation of signal transmission characteristics and suppressing degradation of signal quality. The electronic component has: a laminated body including a plurality of stacked insulating layers; a plurality of first coils arranged along a lamination direction in the laminated body and electrically connected to each other; a plurality of first coils arranged in a lamination direction in the laminated body and electrically connected to each other a second coil; an inner ground electrode provided in the laminated body and arranged between the two first coils facing each other in the lamination direction; and a ground terminal connected to the inner ground electrode.

Description

technical field [0001] The present invention relates to an electronic component including a common mode choke coil and a capacitor. Background technique [0002] Conventionally, as electronic components, there are components described in JP-A-2014-53765 (Patent Document 1) and JP-A-2014-230278 (Patent Document 2). [0003] In the electronic component described in Japanese Unexamined Patent Application Publication No. 2014-53765, a first capacitor electrode and a second capacitor electrode are provided in parallel above a first coil and a second coil constituting a common mode filter. A third capacitive electrode and a fourth capacitive electrode are arranged in parallel below the first coil and the second coil. The first capacitor electrode is connected to one end of the first coil, and the third capacitor electrode is connected to the other end of the first coil. The second capacitor electrode is connected to one end of the second coil, and the fourth capacitor electrode ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H7/01H01F27/28H01F27/29
CPCH01F27/2804H01F27/29H03H7/0115H01F2027/2809H01F17/0013H01F27/292H01F2017/0026H01F2017/0093H01F27/245H01F27/40
Inventor 松永季
Owner MURATA MFG CO LTD
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