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Electronic components and circuit modules

An electronic component and electrode technology, which is applied in the direction of assembling printed circuits, printed circuit components, and circuits with electrical components, can solve the problems of large application of the winding 531a, and achieve the effect of reducing the possibility of disconnection

Active Publication Date: 2019-09-03
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the resin softens during expansion, so the resin does not apply a large force to the winding wire 531a.

Method used

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  • Electronic components and circuit modules
  • Electronic components and circuit modules
  • Electronic components and circuit modules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0050] Hereinafter, an electronic component and a circuit module according to an embodiment will be described with reference to the drawings. figure 1 It is an external perspective view of the electronic component 10 . figure 2 It is a figure which looked at the iron core 12 of the electronic component 10 from the lower side. image 3 It is a figure which looked at the iron core 12 of the electronic component 10 from the upper side. Figure 4 Yes figure 2 The cross-sectional structure diagram on A-A. exist Figure 4In the figure, the interval I1 from the winding core 22 to the external electrode 14a is illustrated, and the other windings 16a are omitted.

[0051] Hereinafter, the direction in which the winding core portion 22 of the core 12 of the electronic component 10 extends is defined as the front-rear direction (an example of the first direction, the rear side being an example of one side, and the front side being an example of the other side). In addition, the d...

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Abstract

The present invention provides an electronic component and a circuit module capable of reducing the possibility of wire breakage in winding. The electronic component according to the present invention includes an iron core, a first winding, and an external electrode, and the flange portion of the iron core includes a protrusion having a first surface facing upward and positioned above the winding core portion of the iron core The main body of the edge portion, the first electrode forming portion and the second electrode forming portion protruding toward the upper side of the first surface, and the external electrodes are provided on the second surface of the first electrode forming portion and are connected to the first winding to form There is a groove portion space surrounded by the first electrode forming portion, the second electrode forming portion, and the first surface, and a predetermined section on the first winding wire from the time it leaves the core portion to the time when it reaches the external electrode is viewed from the front side. The upper right side extends and does not have a portion that overlaps the groove portion space over the entire line width of the first winding.

Description

technical field [0001] The present invention relates to an electronic component and a circuit module including a wire-wound coil. Background technique [0002] As a conventional invention related to electronic components, for example, a wire-wound chip common mode choke coil described in Patent Document 1 is known. Figure 13 It is a perspective view of the common mode choke coil 500 described in patent document 1. exist Figure 13 In , the direction in which the winding core portion 511 extends is defined as the front-rear direction. In addition, the direction in which leg-shaped electrode portions 515a, 515b are arranged is defined as the left-right direction. In addition, a direction perpendicular to the front-back direction and the left-right direction is defined as an up-down direction. [0003] The common mode choke coil 500 includes an iron core 510, leg-shaped electrode portions 515a, 515b, and winding wires 531a, 531b. The iron core 510 includes a winding core po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/24H01F27/29H01F17/00H01F17/04
CPCH01F27/24H01F27/292H01F27/2823H01F27/30H01F17/00H01F17/04H01F2017/0093H01F2017/004H05K2201/1003H05K3/284H01G4/33H01L23/13H01L23/14H01L23/32H05K1/11H05K1/181H05K3/34
Inventor 神户勇贵
Owner MURATA MFG CO LTD
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