Miniature compression molding inductance element and manufacturing method thereof
A technology of an inductance element and a manufacturing method, which is applied in the field of miniature molded inductance elements and their manufacturing, can solve the problems of poor performance and inconvenience of automatic production of miniaturized inductance elements, and achieves the effects of flexible processing, high reliability and good consistency
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[0031] Example one:
[0032] The miniature molded inductance element of this embodiment is suitable for mobile phones, digital cameras, computers, televisions, hard disks, set-top box game consoles, etc., and includes a magnetic core, a built-in coil, a magnetic molded layer and terminal electrodes. The surface of the built-in coil is provided with A self-adhesive layer that achieves adhesion after heating or coating with a specific solvent.
[0033] The magnetic core and the magnetic molding layer adopt ferrite or metal soft magnetic material as the molding powder. The terminal electrode includes a pad printing metallization layer, an electroplating metallization layer or a sputtering metallization layer.
[0034] The manufacturing method of the micro-molded inductance element, such as Picture 10 As shown, including the following steps:
[0035] Prefabricated magnetic core and coil: The prefabricated magnetic core step adopts molding, extrusion or cutting molding methods, and ferri...
Example Embodiment
[0041] Embodiment two:
[0042] A method for manufacturing miniature molded inductance components is described as follows:
[0043] Firstly, a T-shaped magnetic core with a certain molding density is obtained by using a molding process and heating and pressurizing to solidify. The T-shaped magnetic core is made of a soft metal magnetic alloy, and FeSiCr powder is preferred. Such as figure 1 As shown, the prefabricated T-shaped magnetic core 10 includes a magnetic core body 101 and a core post 102.
[0044] Through the winding machine and the corresponding winding mold or other methods such as figure 2 The shown pair-winding flat coil 20 includes two lead-out legs 201, which are led out after being twisted by 90° through the torsion part 202 of the lead-out leg 201 to realize the plane of the lead-out leg 201 and the electrode surface of the metalized electrode Lead in parallel. In this implementation, self-adhesive straight-welded enameled wire is preferred, and the winding direct...
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