An amorphous common mode inductor
A common mode inductance, amorphous technology, applied in the field of amorphous common mode inductors, can solve the problems of low saturation magnetic induction intensity of common mode inductors, limited application range, poor temperature stability, etc., to achieve low coercivity, DC bias resistance Excellent saturation ability, low coercivity effect
Active Publication Date: 2016-04-20
仙桃市诚宇汽车电器股份有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide an amorphous common-mode inductor to solve the technical problems of the existing common-mode inductors such as low saturation magnetic induction, narrow adjustment range, poor temperature stability, and limited application range.
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[0017] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0018] figure 1 It is a structural schematic diagram of the present invention, figure 2 is the schematic diagram of the common mode inductor, image 3 is a schematic diagram of the structure of the fixed bracket, Figure 4 is the left side view of the mounting bracket.
[0019] It can be seen from the figure that the amorphous common mode inductor includes a base 1 and a magnetic core ring 3 . The bottom of the base 1 is provided with pins 12, the base 1 is provided with a fixed bracket 2, the fixed bracket 2 includes a top support ring 21, a bottom support ring 22, the bottom support ring 22 is clamped on the base 1, the top support ring 21 and the bottom The support rings 22 are connected by connecting plates 23 .
[0020] A circular magnetic core ring 3 is placed on the fixed bracket 2. The magnetic...
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Abstract
An amorphous common mode inductor comprises a base and a magnetic core ring; the bottom of the base is provided with pins, the base is provided with a fixing support, and the round magnetic core ring penetrates through the fixing support; the magnetic core ring comprises an inner insulation layer, an iron-based amorphous magnetic core layer, a NiCuZn ferrite nanocrystal magnetic ore layer, a Co-based amorphous alloy magnetic core layer and an outer insulation layer. A plurality of induction coils are symmetrically wound on two sides of the magnetic core ring, and the end portions of the induction coils are connected with the pins of the base. The amorphous common mode inductor has the advantages of being small in size, low in iron loss, high in magnetic conductivity, high in induction, good in temperature stability, excellent in direct-current bias saturation resistance and the like. A magnetic core of the amorphous common mode inductor is a soft magnet low in power consumption and resistant to electromagnetic interference, and is formed by multiple kinds of materials in a stacked mode, common mode noise can be restrained well, EMI harmonic waves are filter, peaks generated by a switch power supply are absorbed, a surge voltage is prevented from damaging a device, the size of a circuit is reduced, and stability and reliability of a system are improved.
Description
technical field [0001] The invention relates to an inductance element, in particular to an amorphous common-mode inductor. Background technique [0002] When electronic components are in working condition, they are not only an object of electromagnetic interference, but also a source of interference. Electromagnetic interference can be divided into two categories: series mode interference and common mode interference. The series mode interference current acts between the two signal lines, and its conduction direction is consistent with the waveform and the signal current. The common mode interference current acts between the signal line and the ground wire, and the interference current flows through half of the two signal lines. One and the same direction, and use the ground wire as the public loop. If the common-mode current is not filtered by attenuation, the common-mode interference current will easily generate electromagnetic radiation. Standards and regulations such ...
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IPC IPC(8): H01F17/06H01F27/24H01F1/153H01F41/02
Inventor 周涛周伟
Owner 仙桃市诚宇汽车电器股份有限公司