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Composite material structure, magnetic core body and magnetic core for high-voltage pulse transformer

A technology of composite materials and magnetic cores, applied in the direction of transformer/inductor magnetic cores, magnetic objects, magnetic layers, etc., can solve problems such as strip breakdown, magnetic core, transformer damage, etc., to reduce product cost and reduce overall size , the effect of increasing the proportion of effective cross-section

Active Publication Date: 2021-08-24
零八一电子集团四川力源电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The heat generated by eddy currents accumulates continuously at the strip, which eventually leads to the breakdown of the strip, and finally develops into the damage of the magnetic core and transformer

Method used

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  • Composite material structure, magnetic core body and magnetic core for high-voltage pulse transformer
  • Composite material structure, magnetic core body and magnetic core for high-voltage pulse transformer
  • Composite material structure, magnetic core body and magnetic core for high-voltage pulse transformer

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Embodiment 1

[0053] The embodiment of the present application provides a composite material structure for stacking and winding to obtain a magnetic core body that can be applied to ultra-high electric field, fast pulse, and high-power environments.

[0054] Such as figure 1 with figure 2 As shown, the composite material structure provided in this embodiment is a strip structure, including: a magnetic layer 1 and an insulating film layer 2 of equal width and attached to each other, and there is an extremely thin insulating solution similar to a film layer between them. Layer 3.

[0055] in,

[0056] The magnetic layer 1 is made of ultra-thin silicon steel strip with a thickness of 40μm~100μm;

[0057] The insulating film layer 2 is made of an inorganic insulating film strip with a thickness of 4 μm to 10 μm;

[0058] The composition of the insulating solution layer 3 is an inorganic insulating solution.

Embodiment 2

[0060] The embodiment of the present application provides a composite material structure for stacking and winding to obtain a magnetic core body that can be applied to ultra-high electric field, fast pulse, and high-power environments.

[0061] Such as image 3 As shown, the composite material structure provided by this embodiment includes: a magnetic layer 1 and an insulating film layer 2 that are bonded and connected, and the insulating film layer 2 is evenly wider than the magnetic layer 1 by 1.5mm on both sides; A continuous void, which is sufficiently filled with the insulating solution layer 3 .

[0062] in,

[0063] The magnetic layer 1 is made of permalloy steel strip with a thickness of 20μm~50μm;

[0064] The insulating film layer 2 is made of an organic insulating film strip with a thickness of 13 μm to 15 μm;

[0065] The composition of the insulating solution layer 3 is an inorganic insulating solution.

Embodiment 3

[0067] The embodiment of the present application provides a composite material structure for stacking and winding to obtain a magnetic core body that can be applied to ultra-high electric field, fast pulse, and high-power environments.

[0068] Such as Figure 4 As shown, the composite material structure provided in this embodiment includes: a magnetic layer 1 , an insulating film layer 2 and an insulating solution layer 3 .

[0069] in,

[0070] The magnetic layer 1 is made of iron-based amorphous steel strip or iron-based nanocrystalline steel strip, with a thickness of 14-25 μm;

[0071] The insulating film layer 2 is made of an inorganic insulating film strip with a thickness of 6 μm to 15 μm;

[0072] The composition of the insulating solution layer is an inorganic insulating solution;

[0073] Both sides of the insulating film layer 2 are evenly wider than the magnetic layer 1 by 2.5 mm; there is a capillary-shaped gap between the two, and the gap is fully filled by t...

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Abstract

The invention provides a composite material structure, a magnetic core body with the composite material structure and a magnetic core, and aims to solve the technical problems that an existing magnetic core is easy to break down and burn down when being applied to a high-power pulse technology. The magnetic core body is manufactured by adopting the composite material structure with the liquid insulating medium and the solid insulating medium, the solid insulating medium and the magnetic strip are in a non-attached joint structure, the internal gap of the magnetic core body is filled with the liquid insulating medium, and therefore it is guaranteed that the magnetic core body has high insulating strength and low energy transmission loss. The magnetic core formed by pouring, filling and fixing the magnetic core body in the shell at a relatively high packaging rate has the characteristics of reliable and stable performance, accurate size, impact resistance, easiness in maintenance and the like, and can be stably and safely applied to environments such as an ultrahigh electric field, a fast pulse and high power.

Description

technical field [0001] The present application relates to the field of magnetic core technology, and relates to a magnetic core body, a composite material constituting the magnetic core body and its structure, and also relates to a high-voltage pulse magnetic core using the magnetic core body. Background technique [0002] Academician Wang Ganchang once pointed out that "high power pulse technology is one of the main basic subjects of contemporary high technology". High-power pulse technology compresses and converts slowly stored energy with high density, and finally effectively releases it to the load. This technology was first developed due to the needs of national defense research and is mainly used in controllable Fusion, simulated nuclear explosions, high-power microwaves, high-power lasers, electromagnetic rail guns, strong electromagnetic pulse weapons, X-ray photography, etc., and with the development of my country's science and technology and the growth of national s...

Claims

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Application Information

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IPC IPC(8): H01F10/30H01F10/08H01F10/00H01F27/25
CPCH01F10/00H01F10/08H01F10/30H01F27/25
Inventor 杨代杰司国强向阳朱家雄赵刚田明委何才国叶伟
Owner 零八一电子集团四川力源电子有限公司
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