Miniature inductor and its manufacturing method
A micro-inductor and manufacturing method technology, applied in the field of inductance, can solve the problems of inability to take into account the comprehensive performance of the micro-inductor and the processing cost, the high cost of the deposition process, the increase in the cost of the micro-inductor, etc., and achieves low processing cost, comprehensive performance and convenience. effect made
Inactive Publication Date: 2019-10-25
BEIJING JIAYUE TONGLEJI ELECTRONICS
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Problems solved by technology
However, the production cost of the deposition process is high, especially for the production cost of the magnetic core
Because the thickness of the magnetic core directly affects the overall performance of the micro-inductor, the thinner the core, the worse the overall performance of the micro-inductor; but increasing the thickness of the magnetic core will increase the cost of the micro-inductor
That is to say, the use of deposition technology to make micro-inductors cannot take into account the overall performance and processing costs of micro-inductors
Method used
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[0048] In order to enable those skilled in the art to better understand the technical solution of the present invention, the micro-inductor provided by the present invention and its manufacturing method will be described in detail below with reference to the accompanying drawings.
[0049] Such as figure 1 and Figure 2a As shown, the miniature inductor includes a magnetic core 1 , a coil 2 , an encapsulation layer 3 and pads 4 , and the coil 2 is arranged outside the magnetic core 1 . The encapsulation layer 3 is used for encapsulating the magnetic core 1 and the coil 2 , and a soldering pad 4 is respectively provided at the two ends of the wiring 22 for electrical connection between the coil 2 and other external devices.
[0050] Such as Figure 2a As shown, the coil 2 includes a support body 21 and wiring 22 . Wherein, the support body 21 is a hollow columnar structure, such as a square cylindrical structure. Of course, the support body 21 may also be a circular cylindri...
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Abstract
The invention provides a miniature inductor. The miniature inductor comprises a magnetic core and a coil, wherein the coil comprises a supporting body and a distribution line, the supporting body is of a barrel-shaped structure, the distribution line is spirally arranged on the supporting body, and the magnetic core is arranged on the inner side of the supporting body. The miniature inductor is excellent in comprehensive performance, easy to manufacture and low in cost. The invention further provides a manufacturing method of the miniature inductor.
Description
technical field [0001] The invention relates to an inductor, in particular to a miniature inductor and a manufacturing method thereof. Background technique [0002] Inductors are widely used in electrical equipment. In order to adapt to the miniaturization and thinning of electrical equipment such as portable phones and palmtop computers, inductors are gradually developing towards miniaturization and thinning. [0003] Due to the small size of the micro-inductor, especially its thin thickness (thickness below the millimeter level), the traditional manufacturing method (directly winding the coil on the magnetic core) for making a large-volume inductor cannot obtain such a micro-inductance. At present, miniature inductors are obtained through a deposition process, that is, both the magnetic core and the coil are produced through a deposition process. However, the production cost of the deposition process is relatively high, especially for the production cost of the magnetic ...
Claims
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IPC IPC(8): H01F17/04H01F27/30H01F41/00
Inventor 时启猛曲炳郡刘乐杰叶启耿玉洁
Owner BEIJING JIAYUE TONGLEJI ELECTRONICS