Reactor iron core structure with side panels and fabrication process of reactor iron core structure

Abstract

The invention discloses a reactor iron core structure with side panels and a fabrication process of the reactor iron core structure. The reactor iron core structure comprises at least two silicon steel elements, wherein each silicon steel element comprises a plurality of laminated silicon steel sheets, the silicon steel sheets are distributed, a gap is formed between adjacent two silicon steel elements, and a gap plate is arranged in the gap and bonded and fixed with the silicon steel element by an adhesive; the reactor iron core structure is characterized in that the two side surfaces of each silicon steel element are respectively provided with a side panel, and a bonding surface of the side panel and the silicon steel element is coated with the adhesive so that the two side surfaces of the silicon steel element are firmly bonded with the side panel to form a whole; the side panel is used for sealing the two ends of the gap and is simultaneously bonded and fixed with the two ends of each silicon steel element; the length of the gap plate is smaller than the length of the silicon steel element; and a groove is formed in the bonding surface of the side panel and the silicon steel element. With the arrangement of the side panels, the vibration at the outer sides of the silicon steel elements or the two ends of the gaps is greatly suppressed, and a high noise reduction effect is achieved.

Description

technical field [0001] The invention relates to the field of iron core reactors, in particular to a reactor iron core structure with side plates and a manufacturing process thereof. Background technique [0002] In modern industry, as an indispensable and important component in the field of power electronics, iron core reactors are widely used in harmonic suppression circuits or power compensation circuits of power transmission grids, and are also widely used in electric locomotives, marine ships, new energy, Filter circuits, resonant circuits or current limiting circuits in UPS and other fields. In practical applications, the current flowing through the core reactor is not only a 50Hz or 60Hz sine wave current, but often contains rich harmonics (150Hz~2kHz), high frequency modulation waves (1kHz~20kHz), etc. Due to the structure of the iron core reactor and its application limitations, the reactor will produce various noises, abnormal sounds, vibrations, etc. in actual wor...

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Problems solved by technology

This approach suppresses the noise of the reactor to a certain extent, but because the traditional air gap plate is generally set in the gap between two silicon steel pieces, its size is consistent with the size of the bonding surface of the laminated silicon steel sheets, this kind of The air-gap plate of the structure can only accommodate a small amount of epoxy resin when it is bonded, so its bonding effect is poor

At the same time, only using the air gap plate in the gap between the two silicon steel parts to fix the silicon steel part, the fixing effect is poor, and the vibration generated from the outside of the silicon steel part cannot be suppressed

In order to reduce the noise of the product, the entire reactor is also potted with epoxy, but this will undoubtedly increase the cost and volume of the product, and is not conducive to heat dissipation

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