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Choke

A technology of inductors and cross-sections, which is applied in the field of the core body of the center column, can solve problems such as wire damage, saturation current, and DC impedance magnetic flux density difference

Active Publication Date: 2013-06-26
CYNTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the '538 patent, since the cross-sectional shape of the center post is square, the wire may be damaged by the sharp corner of the center post, and the characteristics of this inductor (e.g., saturation current, DC resistance, magnetic flux density, etc.) are poor

Method used

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Embodiment Construction

[0067] The technical features of the present invention will be described in detail below with the accompanying drawings, in which the same reference numerals in the drawings are used to designate the same or similar components. It should be noted that the drawings should be viewed in the direction of the reference signs.

[0068] Please refer to image 3 as well as Figure 4 , image 3 Is a cross-sectional view of an inductor 3 according to an embodiment of the present invention, Figure 4 Yes image 3 The top view of the core of the inductor 3 in. Such as image 3 versus Figure 4 As shown, the inductor 3 includes a core 30 and at least one wire 32 ( image 3 Only one is shown), the magnetic material 34 and a pair of electrodes 36. Inductor 3 is suitable for small size applications. For example, the length * width of the inductor 3 can be less than 4 mm * 4 mm, and the height can be less than 2.5 mm. Such as image 3 As shown, the length of the upper plate 302 is less than the...

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Abstract

A choke includes a single-piece core entirely made of a same material, the single-piece core having two boards and a pillar located between the two boards, a winding space being located among the two boards and the pillar, wherein the pillar has a non-circular and non-rectangular cross section along a direction substantially perpendicular to an axial direction of the pillar, the cross section of the pillar has a first axis and a second axis intersecting with each other at a center of the cross section of the pillar and are substantially perpendicular with each other, the first axis is longer than the second axis, and the cross section of the pillar is substantially symmetrical to both of the first axis and the second axis. The cross section area of the pillar can be effectively increased. Therefore, the saturation current of the choke can be effectively enhanced.

Description

Technical field [0001] The present invention relates to a core suitable for choke, and more particularly to a core with a non-circular and non-square cross section. Background technique [0002] The function of the inductor is to stabilize the current in the circuit and achieve the effect of filtering out the noise signal. Its function is similar to that of a capacitor. It also stores and releases the electrical energy in the circuit to adjust the stability of the current. Compared with the capacitor, it is based on the electric field ( Electricity is stored in the form of electric charge, while the inductor is achieved in the form of a magnetic field. [0003] In the early days, inductors were usually used in electronic devices such as DC / DC converters or battery chargers, and were used in modems, asymmetric digital subscriberlines (ADSL), or local area networks. In transmission devices such as local area networks (LAN). However, in recent years, inductors have been more widely ...

Claims

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Application Information

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IPC IPC(8): H01F17/04H01F27/24H01F27/30
CPCH01F17/045H01F27/24H01F27/292H01F27/306H01F2017/048
Inventor 吴宗展谢明家黄逸珉谢蓝青郭玉京
Owner CYNTEC
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