Inductance device and magnetic core thereof

Abstract

The invention discloses an inductance device and a magnetic core thereof. The inductance device comprises an inner magnetic core, a curl cord coiled on the inner magnetic core and provided with at least one curl cord tail end part, and an outer magnetic core internally provided with the inner magnetic core and coiled on the curl cord of the inner magnetic core. The outer magnetic core comprises a first surface, a second surface, at least one convex part and at least one conductive layer, wherein the first surface is provided with at least one electrode setting region, the second surface is arranged relative to the first surface, and the at least one convex part and the at least one conductive layer are coiled on the curl cord tail end part. The at least one convex part corresponds to the at least one electrode setting region and is formed on the second surface. The at least one conductive layer is formed on the at least one electrode setting region and extends to the outer surface of the at least one convex part.

Description

technical field [0001] The invention relates to an inductance device, in particular to an inductance device which does not need to be provided with a groove for accommodating the terminal part of the winding wire at the electrode. Background technique [0002] Inductive devices are used in many electronic devices, such as mobile phones, personal computers or televisions. There are many different types or types of inductive devices, and one of them is an inductive device in which a coiled wire is wound on a drum-shaped magnetic core, and the outer side of the inductive device is covered by a ring-shaped magnetic core. [0003] The aforementioned inductive device can be provided with electrodes, and the two ends of the winding wire on the drum-shaped magnetic core are respectively electrically connected to the corresponding electrodes, and then the electrodes are placed on the electrical contacts on the circuit board, so that the inductive device can It can perform its intend...

AI Technical Summary

Problems solved by technology

Usually, after the soldering is completed, the soldering surface will appear raised to make the soldering surface uneven, and this raised phenomenon is not conducive to the soldering of the inductor device 100 on the electrical contacts on the circuit board, and the bumps are difficult to control, thus reducing the production of the inductor device 100 quality

[0005] Although the problem of welding surface bulge can be solved by deepening the groove 104, the deeper groove 104 will make the annular magnetic core thinner, making it prone to cracks or dark cracks in the immersion tin welding process, which seriously affects the to the performance of the inductive device 100

Soldering the two ends 106 of the wound wire to the back of the toroidal core In addition to the aforementioned disadvantages, the toroidal core requires a greater immersion depth during the soldering process, which also increases the risk of cracking or subsidence of the toroidal core , affecting the yield of the inductor device 100

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