Integrated structure and installation method of magnetic element and printed circuit board

Abstract

The invention provides a magnetic element and printed circuit board integrated structure and an installation method. The structure is characterized in that a magnetic element is a hollow annular cylinder and applied to a modularized power supply controller; an insulating isolation pad is in accordance with an annular section of the magnetic element in shape; the insulating isolation pad is adhered with a printed circuit board; the magnetic element is fixed on the printed circuit board through a hole by a binding wire; a lead wire of the magnetic element is welded on a corresponding bonding pad of the printed circuit board so as to generate a welding spot; a hollow chamber formed by the magnetic element and the insulating isolation pad is filled with epoxy resin; a special area defined by the outer sidewall of the magnetic element, the outer sidewall of the insulating isolation pad and the printed circuit board is filled with an adhesive. The installation method disclosed by the invention can ensure that the magnetic element is directly mounted on the printed circuit board, components such as a structural part, a cover plate, and a connecting wire are saved, and multi-connection is avoided, so that mechanical properties of the magnetic element are satisfied, and the size and weight of the modularized power supply controller are reduced as well.

Description

technical field [0001] The invention relates to an installation method applied to a magnetic element of a power supply controller, in particular to an integrated structure and installation method of a magnetic element and a printed circuit board for a modular power supply controller. Background technique [0002] Improving the power density of power supply controllers is the development trend of spacecraft power supplies today. Compared with previous spacecraft, current power supply controllers have higher requirements in terms of volume, weight, heat consumption, and mechanical properties. Therefore, the relationship between structure and electrical performance should be fully considered in the design process of the power controller. Among them, the magnetic components on some functional modules are not only large in size and heavy in weight, but also must be fixed on the main structural frame with a special metal cover, which will inevitably have a certain impact on the ov...

AI Technical Summary

Problems solved by technology

The method of electromagnetic pure iron shell can well solve the problems of weight, mechanical resistance and electromagnetic shielding of large magnetic components. However, due to the high density of electromagnetic pure iron and the need to install it again, it will inevitably increase the weight of the power controller and occupy Location of other components and printed circuit boards

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