Magnetic element

Abstract

A magnetic element of the present invention includes a magnetic core member and a winding. The magnetic core member includes a central post, at least one lateral post and a winding space, and the winding is disposed in the winding space and around the central post. The central post includes a plurality of central air gaps, and the at least one lateral post includes a plurality of lateral air gaps. Since the magnetic element of the present invention includes several air gaps formed in the central post and the lateral posts and distributed uniformly on the entire magnetic path, such a structure prevents magnetic saturation and controls the magnetic leakage loss in a desired range. In addition, since the winding of the magnetic element of the present invention is directly disposed on the central post without a winding frame, the number of windings is thus increased so as to improve utilization ratio of the winding and working efficiency of the magnetic element.

Description

technical field [0001] The present invention relates to a magnetic element, in particular to a magnetic element forming a plurality of air gaps on a magnetic circuit. Background technique [0002] Figure 1A , 1B Indicates a conventional inductive element, conventional magnetic elements such as transformers, inductive elements, etc. will use a single air gap 14 formed between the central column 111 of the first magnetic core 11 and the central column 121 of the second magnetic core 12 to avoid magnetic saturation , however, if the distance between the single air gap 14 is too large, it will cause higher flux leakage, resulting in increased energy consumption. And conventional magnetic components with an air gap need to use the winding frame 10 to fix the winding group 13 between the first magnetic core 11 and the second magnetic core 12, which will reduce the number of winding groups that can be accommodated, and reduce the Winding utilization rate and working efficiency o...

AI Technical Summary

Problems solved by technology

[0002] Figure 1A , 1B Indicates a conventional inductive element, conventional magnetic elements such as transformers, inductive elements, etc. will use a single air gap 14 formed between the central column 111 of the first magnetic core 11 and the central column 121 of the second magnetic core 12 to avoid magnetic saturation , however, if the distance between such a single air gap 14 is too large, it will cause higher flux leakage, resulting in increased energy consumption

And conventional magnetic components with an air gap need to use the winding frame 10 to fix the winding group 13 between the first magnetic core 11 and the second magnetic core 12, which will reduce the number of winding groups that can be accommodated, and reduce the Winding utilization rate and working efficiency of magnetic components

There are magnetic components on the market that set multiple air gaps in the center column to reduce and disperse the leakage loss and reduce the diffusion flux, but the distribution and number of air gaps in the center column of the magnetic core have their limits, and when the number of air gaps increases, the air gap The distance between the air gaps will become smaller, and when the distance between the air gaps is less than a certain length, the diffusion flux cannot be continuously and effectively reduced, so the efficiency improvement is limited

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