Winding power inductance component and manufacturing method thereof

A technology of power inductors and manufacturing methods, which is applied in the field of wire-wound power inductors and their manufacturing, can solve the problems of poor resistance to mechanical shock and impact, low frequency of use of devices, and high manufacturing costs, and achieve the improvement of physical shock resistance and the use of The effect of high frequency and low manufacturing cost

Inactive Publication Date: 2010-06-23
SHENZHEN SUNLORD ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For magnetic ring or magnetic barrel type closed magnetic circuit winding power inductor products, although the EMI problem can be better solved, and the rated current of the product can also be achieved to a greater extent, but the frequency of use of the device is low, the overlapping characteristics are poor, and High manufacturing cost, poor resistance to mechanical shock and impact

Method used

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  • Winding power inductance component and manufacturing method thereof
  • Winding power inductance component and manufacturing method thereof
  • Winding power inductance component and manufacturing method thereof

Examples

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Embodiment Construction

[0041] The present invention will be further described in detail below through embodiments in conjunction with the accompanying drawings.

[0042] Please refer to Figure 1 to Figure 4c , a wire-wound power inductive element of an embodiment includes a drum-shaped magnetic core, a coil 31, external electrodes 21a, 21b and a connecting portion 22 connecting the drum-shaped magnetic core and the external electrodes 21a, 21b, and the drum-shaped magnetic core has an upper pendulum 11 , hem 12, and the stem 13 connecting the upper and lower hems, the coil 31 is wound on the stem 13, and the two ends of the coil 31 are electrically connected with the external electrodes 21a, 21b. According to the characteristics of the present invention, the winding power inductive element It also has a magnetic heat-shrinkable material part 41 covering the coil 31 and the upper pendulum 11 and the lower pendulum 12 .

[0043] The magnetic heat-shrinkable material part is a heat-shrinkable elastic...

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PUM

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Abstract

The invention discloses a winding power inductance component, comprising a drum type magnetic core which comprises an upper pendulum, a lower pendulum and a core column which connects the upper pendulum and the lower pendulum; an external electrode which is formed at the bottom of the lower pendulum; a coil which is wound on the core column and the two ends of which is electrically connected with the external electrode; and a magnetic pyrocondensation material part which is covered on the coil, the upper pendulum and the lower pendulum. The invention also discloses a manufacturing method of the winding power inductance component. The winding power inductance component has strong shock resistance, steady electric property, high reliability and good electromagnetic compatibility.

Description

technical field [0001] The invention relates to electronic components, in particular to a wire-wound power inductive component and a manufacturing method thereof. Background technique [0002] With the development of electronic technology, electronic components are gradually developing towards miniaturization, light weight, high frequency, high current, low EMI (electromagnetic interference) and low manufacturing cost, and high reliability. In the case of external impact, it can still maintain excellent performance. At present, there are many types of wire-wound power inductors, but there are almost no products that can better meet all the above requirements. [0003] For ordinary open magnetic circuit winding power inductor products, although a higher frequency of use can be achieved, the size and quality of the device itself are relatively large, and there are serious EMI problems. [0004] For magnetic ring or magnetic barrel type closed magnetic circuit winding power i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F17/04H01F27/36H01F41/00
Inventor 李有云黄敬新赵卫北
Owner SHENZHEN SUNLORD ELECTRONICS
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