CN202564016U - Integrated common mode and differential mode inductor - Google Patents
Integrated common mode and differential mode inductor Download PDFInfo
- Publication number
- CN202564016U CN202564016U CN2012201177857U CN201220117785U CN202564016U CN 202564016 U CN202564016 U CN 202564016U CN 2012201177857 U CN2012201177857 U CN 2012201177857U CN 201220117785 U CN201220117785 U CN 201220117785U CN 202564016 U CN202564016 U CN 202564016U
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- magnetic core
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Abstract
The utility model relates to an inductor and discloses an integrated common mode and differential mode inductor which comprises a first magnetic core, a second magnetic core, a framework, windings, an iron clamp and pins, wherein the first magnetic core and the second magnetic core are provided with windings respectively and are installed on the framework, the iron clamp for connecting two ends of the framework is arranged on an upper part of the framework, and the pins are arranged on a lower part of the framework. According to the inductor of the utility model, one product is used to replace a plurality of elements, thereby reducing the number of elements and costs, saving space, reducing weight, raising overall efficiency, and overcoming the disadvantages of the conventional inductors which have too many circuit distribution parameters and a complex wire arrangement, and are large in overall consumption, low in overall efficiency, large in size, complex in technology and high in costs, with all the disadvantages caused by two much elements contained in the conventional inductors.
Description
Technical field
The utility model relates to inductor, is specifically related to a kind of integrated common mode differential mode inductance device.
Background technology
Common mode inductance is modal in daily life to be exactly in the electronics applications, has mixed various high-frequency circuits, digital circuit and analog circuit on the inner circuit of electronic product, can produce a large amount of frequency electromagnetic waves during their work and interfere with each other, Here it is EMI.EMI also can outwards launch through mainboard wiring or external cable, causes electromagnetic radiation pollution, and the electronic equipment that not only influences other causes work, and is also harmful.Common mode inductance is that two-wire is two-way, and differential mode inductance is unidirectional.Common mode is that two windings are connected on respectively on zero line and the live wire, and two windings are with advancing with going out, filtering be common-mode signal, differential mode is that the filter inductor that a winding is connected on separately on zero line and the live wire can only the filtering DM EMI.
Chip on the circuit is an electromagnetic interference object in the course of the work, also is an electromagnetic interference source.For the interference signal imported on the erasure signal line and the various interference of induction, we must rationally arrange filter circuit to filter common mode disturbances (ground connection interference) and series mode interference (DM EMI).
In addition, existing common mode inductor and differential mode number of elements that inductor adopts are many, cause the distributed constant of circuit many, and wiring is complicated, overall consumption greatly, and overall efficiency is low; And volume is big, complex process and cost are high.Along with popularizing and development of each electronic product, inductance is widely used in electronic equipment as energy storage and filter element, and inductor more and more is tending towards miniaturization, and volume weight requires more and more stricter.
The utility model content
The purpose of the utility model is: to the deficiency of prior art, provide that a kind of volume is little, in light weight, highly little, few, the conserve space of element during circuit design, overall efficiency are high, manufacture the low integrated common mode inductor of simple, minimum insertion loss, cost.
The technical scheme of the utility model is:
A kind of integrated common mode differential mode inductance device comprises first magnetic core, second magnetic core, skeleton, coiling, iron clamp, pin; Described first magnetic core and second magnetic core respectively are equiped with coiling, and are installed on the skeleton, and its top is equipped with the iron clamp that is connected skeleton company section; Described skeleton bottom is equiped with pin respectively.Adopt a product to substitute a plurality of parts, thereby reduced parts number and cost, conserve space, weight reduction, improve overall efficiency.
The MnZn magnetic core that described first magnetic core is a high magnetic permeability, described second magnetic core are nickel zinc magnetic core; Described skeleton is a phenolic moulding powder.Electromotive force about 90% produces common mode inductance through the high magnetic permeability magnetic core; Electromotive force about 10% produces differential mode inductance through a nickel zinc magnetic core on the product, and common mode and differential mode inductance filter the interference of common mode and string mould signal through filter circuit separately like this.
The beneficial effect of the utility model is: with respect to prior art; The utlity model has that volume is little, in light weight, highly little, few, the conserve space of element during circuit design, overall efficiency are high, manufacture simple, the minimum low advantage of insertion loss, cost, can rational and effective filter common mode disturbances (ground connection interference) and series mode interference (DM EMI) simultaneously.
Description of drawings
Fig. 1 is the perspective view of the utility model.
Fig. 2 is the vertical view of the utility model.
Embodiment
For the ease of those skilled in the art's understanding, will combine specific embodiment and accompanying drawing that the structural principle of the utility model is done further detailed description below:
Like Fig. 1, shown in 2, a kind of integrated common mode inductor comprises first magnetic core 1, second magnetic core 2, skeleton 3, coiling 4, iron clamp 5, pin 6; Described first magnetic core 1 and second magnetic core 2 respectively are equiped with coiling 4, and are installed on the skeleton 3, and its top is equipped with the iron clamp 5 that is connected skeleton 3 two ends; Described skeleton 3 bottoms are equiped with pin 6 respectively.
Described first magnetic core 1 is the MnZn magnetic core of high magnetic permeability, and described second magnetic core 2 is a nickel zinc magnetic core; Described skeleton 3 is a phenolic moulding powder.Different sense values requires and can get final product through the magnetic permeability proportioning of magnetic core.Electromotive force about 90% produces common mode inductance through the high magnetic permeability magnetic core; Electromotive force about 10% produces differential mode inductance through a nickel zinc magnetic core on the product, and common mode and differential mode inductance filter the interference of common mode and string mould signal through filter circuit separately like this.
Foregoing is merely the preferred embodiment of the utility model, is not the embodiment that is used to limit the utility model, and those skilled in the art are according to the design of the utility model, and appropriate adaptation of having done or modification all should be within the protection ranges of the utility model.
Claims (3)
1. integrated common mode differential mode inductance device; Comprise first magnetic core, second magnetic core, skeleton, coiling, iron clamp, pin; It is characterized in that: described first magnetic core and second magnetic core respectively are equiped with coiling, and are installed on the skeleton, and its top is equipped with the iron clamp that is connected skeleton company section; Described skeleton bottom is equiped with pin respectively.
2. a kind of integrated common mode differential mode inductance device according to claim 1, it is characterized in that: the MnZn magnetic core that described first magnetic core is a high magnetic permeability, described second magnetic core are nickel zinc magnetic core.
3. a kind of integrated common mode differential mode inductance device according to claim 1, it is characterized in that: described skeleton is a phenolic moulding powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201177857U CN202564016U (en) | 2012-03-23 | 2012-03-23 | Integrated common mode and differential mode inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201177857U CN202564016U (en) | 2012-03-23 | 2012-03-23 | Integrated common mode and differential mode inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564016U true CN202564016U (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201177857U Expired - Fee Related CN202564016U (en) | 2012-03-23 | 2012-03-23 | Integrated common mode and differential mode inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564016U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646764A (en) * | 2013-11-28 | 2014-03-19 | 宝电电子(张家港)有限公司 | Differential-mode and common-mode integrated electronic transformer |
| CN108597830A (en) * | 2018-03-05 | 2018-09-28 | 海宁孚硕电源科技有限公司 | A kind of production method of common-mode inductor |
-
2012
- 2012-03-23 CN CN2012201177857U patent/CN202564016U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646764A (en) * | 2013-11-28 | 2014-03-19 | 宝电电子(张家港)有限公司 | Differential-mode and common-mode integrated electronic transformer |
| CN103646764B (en) * | 2013-11-28 | 2016-07-13 | 惠州市宝电通科技有限公司 | Difference common mode Integral electronic transformator |
| CN108597830A (en) * | 2018-03-05 | 2018-09-28 | 海宁孚硕电源科技有限公司 | A kind of production method of common-mode inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DONGGUAN MENTECH OPTICAL + MAGNETIC CO., LTD. Free format text: FORMER NAME: DONGGUAN MENTECH INDUSTRIAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Dongguan City, Guangdong Province town of the 523343 row of stone temple village nine road side Wang Shajing Mingpu company Patentee after: Dongguan Mentech Optical & Magnetic Co., Ltd. Address before: Dongguan City, Guangdong Province town of the 523343 row of stone temple village nine road side Wang Shajing Mingpu company Patentee before: Dongguan Mentech Electronic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20210323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |