CN105405606A - EMI-ameliorated transformer - Google Patents
EMI-ameliorated transformer Download PDFInfo
- Publication number
- CN105405606A CN105405606A CN201510763618.8A CN201510763618A CN105405606A CN 105405606 A CN105405606 A CN 105405606A CN 201510763618 A CN201510763618 A CN 201510763618A CN 105405606 A CN105405606 A CN 105405606A
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- CN
- China
- Prior art keywords
- emi
- transformer
- group
- ameliorated
- drum stand
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- Regulation Of General Use Transformers (AREA)
Abstract
The invention discloses an EMI-ameliorated transformer, comprising a winding frame, primary windings, secondary windings and an auxiliary winding, wherein the primary windings are wound on the winding frame and coupled to an input circuit, the secondary windings are wound on the winding frame and coupled to an output circuit, and the auxiliary winding is wound on the winding frame, is sandwiched between the secondary windings and is coupled to the input circuit. The EMI-ameliorated transformer has the beneficial effect that the auxiliary winding is arranged between the secondary windings so that a good flying capacitor effect can be formed between the primary windings and the secondary windings and thus EMI is ameliorated.
Description
Technical field
The present invention relates to a kind of transformer improving EMI, belong to transformer technology field.
Background technology
In exchange type power system, the magnet assembly such as transformer and inductance divides often important.The making of this kind of magnet assembly, directly insulated conductor can be set around magnetic core, such as single layer dielectrics wire or three-layer insulated wire, above the winding region that also first insulated conductor can be turned to line pie or insulated conductor is located at drum stand, then assemble with magnetic core.Exchange type power system produces the problem of electromagnetic interference (EMI) owing to adopting switch module, electromagnetic interference can be disturbed through the mode of conduction and radiation, even damages other electronic building brick or electronic equipment, Shortcomings.
Summary of the invention
For above-mentioned deficiency, the invention provides a kind of transformer improving EMI.
The present invention adopts technical scheme as follows:
Improve a transformer of EMI, comprise drum stand, elementary coiling group, secondary rolling thread group, auxiliary coiling group; Described elementary coiling group is looped around on described drum stand, and couples input circuit; Described secondary rolling thread group is looped around on described drum stand, and couples output circuit; Described auxiliary coiling group to be looped around on described drum stand and to be sandwiched in described secondary rolling thread group, and couples input circuit.
Compared with prior art, beneficial effect of the present invention is: auxiliary coiling group is placed between secondary rolling thread group that it can make to form better flying capcitor effect between elementary coiling group and secondary rolling thread group, to improve EMI by transformer of the present invention.
Accompanying drawing explanation
Figure 1 shows that structural representation of the present invention.
Embodiment
Embodiment:
Refer to shown in Fig. 1, a kind of transformer improving EMI, comprise drum stand 1, elementary coiling group 2, secondary rolling thread group 3, auxiliary coiling group 4; Described elementary coiling group 2 is looped around on described drum stand 1, and couples input circuit 5; Described secondary rolling thread group 2 is looped around on described drum stand 1, and couples output circuit 6; Described auxiliary coiling group 4 to be looped around on described drum stand 1 and to be sandwiched in described secondary rolling thread group 3, and couples input circuit 5.
Auxiliary coiling group is placed between secondary rolling thread group that it can make to form better flying capcitor effect between elementary coiling group and secondary rolling thread group, to improve EMI by transformer of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. improve a transformer of EMI, comprise drum stand, elementary coiling group, secondary rolling thread group, auxiliary coiling group; It is characterized in that: described elementary coiling group is looped around on described drum stand, and couples input circuit; Described secondary rolling thread group is looped around on described drum stand, and couples output circuit; Described auxiliary coiling group to be looped around on described drum stand and to be sandwiched in described secondary rolling thread group, and couples input circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510763618.8A CN105405606A (en) | 2015-11-11 | 2015-11-11 | EMI-ameliorated transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510763618.8A CN105405606A (en) | 2015-11-11 | 2015-11-11 | EMI-ameliorated transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105405606A true CN105405606A (en) | 2016-03-16 |
Family
ID=55471029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510763618.8A Pending CN105405606A (en) | 2015-11-11 | 2015-11-11 | EMI-ameliorated transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105405606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11062837B2 (en) | 2017-11-10 | 2021-07-13 | Huawei Technologies Co., Ltd. | Planar transformer, power conversion circuit, and adapter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236827A (en) * | 2007-03-30 | 2008-08-06 | 广州市中奕通讯设备有限公司 | Method and product for solving the electromagnetic compatibility of no Y capacitance switch power transformer |
| CN102789878A (en) * | 2012-08-28 | 2012-11-21 | 江苏索尔光电科技有限公司 | Transformer for switching mode power supply |
| CN202816615U (en) * | 2012-09-06 | 2013-03-20 | 苏州市吴中区大陆电子设备厂 | Transformer with good shielding effect |
| CN104376986A (en) * | 2013-08-15 | 2015-02-25 | 亚荣源科技（深圳）有限公司 | Transformer |
-
2015
- 2015-11-11 CN CN201510763618.8A patent/CN105405606A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236827A (en) * | 2007-03-30 | 2008-08-06 | 广州市中奕通讯设备有限公司 | Method and product for solving the electromagnetic compatibility of no Y capacitance switch power transformer |
| CN102789878A (en) * | 2012-08-28 | 2012-11-21 | 江苏索尔光电科技有限公司 | Transformer for switching mode power supply |
| CN202816615U (en) * | 2012-09-06 | 2013-03-20 | 苏州市吴中区大陆电子设备厂 | Transformer with good shielding effect |
| CN104376986A (en) * | 2013-08-15 | 2015-02-25 | 亚荣源科技（深圳）有限公司 | Transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11062837B2 (en) | 2017-11-10 | 2021-07-13 | Huawei Technologies Co., Ltd. | Planar transformer, power conversion circuit, and adapter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |
|
| WD01 | Invention patent application deemed withdrawn after publication |