Inductor and base therefor

Abstract

The invention discloses an inductor, which consists of chassis and cap-shaped iron core, wherein the chassis contains several first mosaic parts and second mosaic parts with gap setting for each first and second mosaic part; the shape of the first and second mosaic parts is different; the cap-shaped iron core possesses at least two lateral walls with two walls connecting mutually; the boss is set at each connecting part; the notch is set on each lateral wall, which makes the first mosaic part of chassis insert each notch of cap-shaped iron core and second mosaic part of chassis insert each boss of cap-shaped iron core.

Description

technical field [0001] The invention relates to an inductor and its base, in particular to an inductor and its base with a good combination of the base and the cap-shaped iron core. Background technique [0002] Generally speaking, the inductor cannot be directly used as a surface mount device (SMD) because the wire end of the coil is pin-shaped, but must be transferred through a base with multiple flat strip-shaped terminals. In order to become a surface mount component. Please refer to figure 1 and figure 2 as shown, figure 1 is an exploded perspective view of an existing inductor, while figure 2 A schematic diagram of an existing inductor base. A conventional inductor 1 generally includes an iron core 11 , a coil 12 , a base 13 , and a hat-shaped iron core 14 . The coil 12 is wound on the iron core 11, the base 13 is generally octagonal, has eight sides 131, and four terminals 132 are provided on the four sides 131, and the wire ends of the coil 12 can be wound on...

AI Technical Summary

Problems solved by technology

However, since each side 131 of the base 13 interferes with the notch 143 of the hat-shaped iron core 14, the base 13 cannot be firmly combined with the hat-shaped iron core 14, so that the iron core 11 and the coil 12 are partially exposed. , has the phenomenon of magnetic leakage, causing the electromagnetic interference (EMI) index of inductor 1 to increase

[0004] Since the base 13 and the hat-shaped iron core 14 cannot be well matched, and cannot be fitted and positioned with each other, it is easy to make the base 13 and the hat-shaped iron core 14 slide relative to each other. In the accommodating space 142 of the type iron core 14, it is also easy to cause changes in position due to slippage (such as Figure 3B As shown by the dotted line in ), thus affecting the inductance value and current stability of inductor 1, resulting in an increase in the failure rate of the inductor

[0005] Therefore, in the process of actual production and assembly, in order to ensure that the inductor 1 can have good electrical characteristics, it is necessary to spend man-hours to accurately locate the relative position of the base 13 and the hat-shaped iron core 14, which not only makes the production difficult, but also requires a considerable amount of time. More time and cost, really need a new inductor structure design to improve the production quality of inductors

Images