CN103646759A - Transformer - Google Patents
Transformer Download PDFInfo
- Publication number
- CN103646759A CN103646759A CN201310624746.5A CN201310624746A CN103646759A CN 103646759 A CN103646759 A CN 103646759A CN 201310624746 A CN201310624746 A CN 201310624746A CN 103646759 A CN103646759 A CN 103646759A
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- China
- Prior art keywords
- copper foil
- coil
- transformer
- radiation
- connect
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Abstract
The invention provides a transformer. The transformer comprises a magnetic core and a coil and is characterized by further comprising copper foil for entirely sealing the coil. By utilizing the copper foil to entirely seal the coil of the transformer, the transformer can shield radiation generated by the coil in all directions, avoid radiation leakage of the transformer and reduce radiation pollution to surroundings.
Description
Technical field
The present invention relates to electronic technology field, relate in particular to a kind of transformer.
Background technology
Along with the develop rapidly of semiconductor technology, Switching Power Supply is used widely in the modern life, but along with the improving constantly of switching frequency, the Electro Magnetic Compatibility of Switching Power Supply (EMC) problem causes people's concern and attention day by day.
The electromagnetic interference of Switching Power Supply mainly comes from the core devices high frequency transformer of Switching Power Supply.Therefore, the core of reduction electromagnetic interference is written into and how avoids the radiation of high-frequency electrical depressor to leak.In prior art, a kind of mode of radiation-screening makes at the side of transformer coil parcel one deck Copper Foil.But this mode can not prevent that transformer radiation is in the axial leakage of coil, so the effect of radiation-screening is not ideal enough.
Summary of the invention
The embodiment of the present invention provides a kind of transformer, can avoid radiation to leak, thereby reduces the radiation pollution of Switching Power Supply to environment.
The embodiment of the present invention provides a kind of transformer. and comprise magnetic core and coil, also comprise: for coil is carried out to totally enclosed Copper Foil.
Preferably, described Copper Foil comprises the first Copper Foil and the second Copper Foil, the side of described the first Copper Foil parcel coil, end face and the bottom surface of described the second Copper Foil parcel coil.
Preferably, described the first Copper Foil and described the second Copper Foil all circularize by being welded to connect, and described the first Copper Foil and described the second Copper Foil are used same solder joint to connect into annular.
Preferably, also comprise an earth connection, described earth connection is connected with the first Copper Foil, the second Copper Foil or solder joint.
Preferably, it is characterized in that, described the first Copper Foil and described the second Copper Foil all connect into annular by adhesive, and described the first Copper Foil and described the second Copper Foil are used same adhesive to connect into annular.
In the embodiment of the present invention, totally-enclosed by using Copper Foil to carry out the coil of transformer, radiation that can shielded coil produces in all directions, avoids the radiation of transformer to leak, and reduces the radiation pollution to surrounding environment.
Accompanying drawing explanation
The end view of a kind of transformer that Fig. 1 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
The embodiment of the present invention provides a kind of transformer, as shown in Figure 1, comprises magnetic core and coil, and coil is carried out to totally enclosed Copper Foil 1.
This Copper Foil 1 can be a Copper Foil, can be also multiple Copper Foils, specifically uses several Copper Foils not affect protection scope of the present invention.
Here totally-enclosed, is interpreted as from all directions, coil being sealed, and does not need coil completely airtight.
In the embodiment of the present invention, totally-enclosed by using Copper Foil to carry out the coil of transformer, radiation that can shielded coil produces in all directions, avoids the radiation of transformer to leak, and reduces the radiation pollution to surrounding environment.
Preferably, this Copper Foil 1 can also comprise the first Copper Foil 2 and the second Copper Foil 3 in Fig. 1, and wherein, on the side of the first Copper Foil 2 parcel coils, the second Copper Foil 3 is wrapped on the end face and bottom surface of coil.The side here refers to the side of the formed cylindrical ring of coil, for the leakage that prevents that the radiation of coil generation from radially going up at coil.The end face here and bottom surface refer to respectively upper surface and the lower surface of the formed cylindrical ring of coil.The second Copper Foil is wrapped on the end face and bottom surface of coil, for preventing radiation that coil the produces leakage on axially at coil.
Preferably, can respectively the first Copper Foil 2 and the second Copper Foil 3 sealings be circularized by the mode of welding, and can before welding, according to the mode of Fig. 1, the weld seam of the weld seam of the first Copper Foil 2 and the second Copper Foil 3 be adjusted on same side, and two weld seams are approached on this side, can use so larger circle or long oval solder joint 4 of major axis of diameter that two Copper Foils are sealed and circularized simultaneously.In this way, can, by once having welded the sealing of two Copper Foils, reduce workman's workload.Certainly, in practical application, those skilled in the art also can use other modes that two Copper Foils are sealed simultaneously, such as the sealing junction of the sealing junction of the first Copper Foil 2 and the second Copper Foil 3 is adjusted on same side, and the sealing junction of two Copper Foils is approached, then use an adhesive (such as adhesive tape etc.) that two weld seams are bonded together, can reduce equally in this way workman's workload.
Further, on the basis of using 4 pairs of the first Copper Foils 2 of solder joint and the second Copper Foil 3 to seal, this transformer can also further comprise an earth connection 5 as shown in Figure 1, and this earth connection 5 is connected with the first Copper Foil 2, the second Copper Foil 3 or solder joint 4.Due to the first Copper Foil 2 and the same solder joint 4 of the second Copper Foil 3 use, and because solder joint 4(welding wire is metal) thering is conduction, the electromagnetic radiation that so just can only by an earth connection, two Copper Foils be received is to ground.
The manufacture method of the transformer that the embodiment of the present invention provides can comprise the steps: when combined magnet core, with magnetic core fixation adhesive tape, along magnetic core direction parcel one, enclose adhesive tape, magnetic core is fixed, the periphery at magnetic core by coil winding afterwards, then the periphery parcel one along coil encloses the first Copper Foil 2, by the side-closed of coil, along direction parcel one circle the second Copper Foil 3 perpendicular to the first Copper Foil 2, the second Copper Foil 3 is by the end face of coil and bottom surface sealing, and the place of being welded to connect of the second Copper Foil (weld seam) is adjusted to the side at the weld seam place of the first Copper Foil, use tin silk that two weld seams are welded and fixed, use afterwards an earth connection 5 to be connected on the solder joint 4 of welding formation.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a transformer, comprises magnetic core and coil, it is characterized in that, also comprises: for coil is carried out to totally enclosed Copper Foil.
2. transformer as claimed in claim 1, is characterized in that, described Copper Foil comprises the first Copper Foil and the second Copper Foil, the side of described the first Copper Foil parcel coil, end face and the bottom surface of described the second Copper Foil parcel coil.
3. transformer as claimed in claim 2, is characterized in that, described the first Copper Foil and described the second Copper Foil all circularize by being welded to connect, and described the first Copper Foil and described the second Copper Foil are used same solder joint to connect into annular.
4. transformer as claimed in claim 3, is characterized in that, also comprises an earth connection, and described earth connection is connected with the first Copper Foil, the second Copper Foil or solder joint.
5. transformer as claimed in claim 2, is characterized in that, described the first Copper Foil and described the second Copper Foil all connect into annular by adhesive, and described the first Copper Foil and described the second Copper Foil are used same adhesive to connect into annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310624746.5A CN103646759A (en) | 2013-11-28 | 2013-11-28 | Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310624746.5A CN103646759A (en) | 2013-11-28 | 2013-11-28 | Transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103646759A true CN103646759A (en) | 2014-03-19 |
Family
ID=50251959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310624746.5A Pending CN103646759A (en) | 2013-11-28 | 2013-11-28 | Transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103646759A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005150264A (en) * | 2003-11-13 | 2005-06-09 | Iq Four:Kk | Lightning resistant transformer and conductive coating single molding coil therefor |
| CN102272869A (en) * | 2009-01-30 | 2011-12-07 | Hbcc有限公司 | High frequency transformers |
| CN202564037U (en) * | 2012-05-28 | 2012-11-28 | 宁波龙宇光电科技有限公司 | Transformer |
| CN203588818U (en) * | 2013-11-28 | 2014-05-07 | 宝电电子(张家港)有限公司 | Transformer |
-
2013
- 2013-11-28 CN CN201310624746.5A patent/CN103646759A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005150264A (en) * | 2003-11-13 | 2005-06-09 | Iq Four:Kk | Lightning resistant transformer and conductive coating single molding coil therefor |
| CN102272869A (en) * | 2009-01-30 | 2011-12-07 | Hbcc有限公司 | High frequency transformers |
| CN202564037U (en) * | 2012-05-28 | 2012-11-28 | 宁波龙宇光电科技有限公司 | Transformer |
| CN203588818U (en) * | 2013-11-28 | 2014-05-07 | 宝电电子(张家港)有限公司 | Transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160527 Address after: Xiaojinkou Street Golden Street 516000 Guangdong city of Huizhou province Huicheng District No. 17 Huizhou city baodiantong science and Technology Co Ltd Applicant after: Huizhou Baodiantong Science and Technology CO., LTD. Address before: 215618, Zhangjiagang Economic Development Zone, Jiangsu Province, No. 8 Bauhinia Road Electronics (Zhangjiagang) Co., Ltd. Applicant before: BOODY Electron (Zhangjiagang) Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140319 |