Magnetic core structure, electromagnetic device and method for preparing electromagnetic device
An electromagnetic device and magnetic core technology, which is applied in the direction of magnetic core/yoke, inductor with magnetic core, transformer/inductor core, etc., can solve the problems of increasing loss of electromagnetic components, leakage of magnetic force lines, etc., and reduce eddy current loss , reduce loss, and reduce the leakage flux amplitude
Active Publication Date: 2019-11-19
SHENZHEN JINGQUANHUA ELECTRONICS
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Problems solved by technology
If the air gap is too large, the magnetic field lines near the air gap will leak seriously, which will increase the loss of electromagnetic components.
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[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0043] It should be noted that, in the present invention, when a component is considered to be "connected" to another component, it may be directly connected to another component, or may be indirectly connected to another component through an intermediate component.
[0044] Unless otherwise defined, all technical and scientific terms used her...
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The invention discloses a magnetic core structure, which comprises a magnetic body, a first connection part, a second connection part and a magnetic assembly, wherein the first connection part and the second connection part are arranged on the magnetic body; the magnetic assembly comprises a magnetic column, multiple magnetic sheets and multiple air-gap spacers; the multiple magnetic sheets and the multiple air-gap spacers are arranged on the magnetic column; one air-gap spacer is arranged between every two magnetic sheets to form multiple segments of air gaps; the magnetic column is connected between the first connection part and the second connection part; and the transverse dimension of the magnetic column is smaller than those of the first connection part and the second connection part. The invention further relates to an electromagnetic device and a preparation method thereof.
Description
technical field [0001] The invention relates to the technical field of electromagnetic components, in particular to a magnetic core structure, an electromagnetic device with the magnetic core structure and a method for preparing the electromagnetic device. Background technique [0002] Electromagnetic components such as inductors and transformers are important components used in electronic circuits. An electromagnetic device generally includes a magnetic core and a coil wound on the magnetic core. In order to meet the design requirements of power electronic products, it is usually necessary to polish the magnetic core to form an air gap to adjust the inductance of the product. On the one hand, the size of the air gap depends on the requirements of the inductance, on the other hand, it is necessary to ensure that the maximum magnetic induction intensity of the product is not greater than the saturation magnetic flux density of the magnetic material. Due to the high initial ...
Claims
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IPC IPC(8): H01F3/14H01F27/24H01F17/04
CPCH01F3/14H01F17/045H01F27/24
Inventor 张文举
Owner SHENZHEN JINGQUANHUA ELECTRONICS