Chip-type dual-line electro-magnetic interference (EMI) common-mode inductor

A technology of common-mode inductors and inductors, which is applied in the field of chip-type two-wire EMI common-mode inductors, can solve problems such as increased labor costs, cumbersome procedures, and multiple labor costs, and achieves convenient production and processing, simple structure, and improved EMI suppression effect of ability

Inactive Publication Date: 2017-09-22
深圳市诺威实业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the cumbersome process, the labor cost is greatly increased
[0003] Although the traditional ring-type two-line EMI common-mode filter has a good effect of suppressing EMI, the production of the traditional ring-type two-line EMI common-mode filter will consume more labor costs

Method used

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  • Chip-type dual-line electro-magnetic interference (EMI) common-mode inductor
  • Chip-type dual-line electro-magnetic interference (EMI) common-mode inductor
  • Chip-type dual-line electro-magnetic interference (EMI) common-mode inductor

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Embodiment Construction

[0019] According to the manufacturing method of the chip-type EMI dual-wire common-mode inductor of the present disclosure, by improving the traditional common-mode inductor shape structure, size structure, magnetic core material and winding process, the chip-type common-mode inductor can play the role of ether The EMI suppression required by the net.

[0020] Such as figure 1 , figure 2 , image 3 As shown, in one embodiment of the present disclosure, the chip-type common-mode inductor includes an I-shaped magnetic core 1, a U-shaped magnetic core 2, and a QPN 180 wire 3, and a full-process common-mode inductor is implemented by fully automatic dedicated equipment device manufacturing. According to an embodiment of the present disclosure, the I-shaped magnetic core 1 and the U-shaped magnetic core 2 may use materials such as nickel-zinc magnetic materials, or other materials. The I-shaped magnetic core 1 has a plurality of patch welding points 4, which can be used as lea...

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Abstract

Chip type two-wire EMI common mode inductor, including I-shaped magnetic core, U-shaped magnetic core and wires wound on I-shaped magnetic core; I-shaped magnetic core includes magnetic stem and magnetic terminals at both ends, magnetic terminal One end of the head is attached to the U-shaped magnetic core to form a magnetic circuit. At the non-attached end of the magnetic end and the U-shaped magnetic core, there are multiple patch welding points, and the wire is wound on the magnetic stem. The end of the wire They are electrically connected to the patch soldering points respectively. Simple structure, convenient production and processing; it can be applied to EMI filtering in a certain frequency band, and can also realize enhanced EMI common mode suppression in different frequency bands, thereby greatly improving the EMI suppression ability of network transformers.

Description

technical field [0001] The technical disclosure relates to an EMI (Electro-Magnetic Interference, electromagnetic interference) common-mode inductor, and more specifically, to a chip-type two-wire EMI common-mode inductor. Background technique [0002] Inductors with EMI filtering effects are widely used in the Internet electronics field. The inductor generally adopts a circular magnetic core or a magnetic core of other shapes, and is manufactured by bifilar winding. Ordinary ring-type two-wire EMI common mode inductors need to be assembled into a package with a fixed outline size, and a series of processes such as manual hand-wound coil branching and connection of lead wires, tin immersion, and potting are required. Due to the cumbersome process, the labor cost is greatly increased. [0003] Although the traditional ring-type two-line EMI common-mode filter has a good effect of suppressing EMI, the production of the traditional ring-type two-line EMI common-mode filter wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/24H01F27/26H01F27/28H01F27/29H01F41/00
CPCH01F27/24H01F27/263H01F27/2823H01F27/29H01F41/00
Inventor 陈春宇钟武昌
Owner 深圳市诺威实业有限公司
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