CN104376993A - Transformer framework - Google Patents
Transformer framework Download PDFInfo
- Publication number
- CN104376993A CN104376993A CN201410696832.1A CN201410696832A CN104376993A CN 104376993 A CN104376993 A CN 104376993A CN 201410696832 A CN201410696832 A CN 201410696832A CN 104376993 A CN104376993 A CN 104376993A
- Authority
- CN
- China
- Prior art keywords
- transformer
- transformer framework
- shielding part
- framework
- skeleton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to a transformer framework which comprises a transformer framework body. The transformer framework body comprises a left framework and a right framework. The left framework and the right framework are each provided with a winding area, and an isolating area is vertically arranged between the two winding areas. A slot is formed in the isolating area, a shielding part is installed in the slot in a pluggable mode, and the shielding part and the slot are matched in shape. The transformer framework is reasonable in structural design, simple in technology, capable of lowering the difficulty of the manufacturing procedure, good in shielding effect, capable of effectively solving the problem of electromagnetic interference of an existing transformer, and capable of saving labor force and lowering the production cost, and a shielding device is convenient to replace.
Description
Technical field
The present invention relates to a kind of transformer framework, be specifically related to a kind of transformer framework placing shielding part, belong to transformer technology field.
Background technology
In prior art, transformer framework is also known as transformer coil holder, it is the agent structure composition in transformer, the parts that in transformer one is indispensable, the main effect of transformer framework is for the coil in transformer provides the space of winding, the magnetic core of stationary transformer, for the stitch of transformer provides support, the installation for transformer provides necessary interface.Along with socioeconomic development, transformer is widely used.The quality of transformer is very important, and accordingly, whether the performance of transformer framework is qualified, and the requirement whether reaching use is equally also very important.The design of existing transformer framework is reasonable not, and existing defects in structure, reduces coefficient of safety and the production efficiency of transformer, extend the production time, add production cost.A kind of transformer framework of the prior art adopts a skeleton link, and on skeleton link, be provided with upper and lower two chutes, be respectively arranged with primary coil skeleton and secondary coil skeleton in two chutes, primary coil skeleton is connected with slide with secondary coil skeleton.This transformer framework makes primary coil skeleton and secondary coil skeleton be fixed on skeleton link with being similar to drawer type, be not enough to a certain extent meet safety requirement, and this transformer framework needs to adopt multiple accessory to assemble, thus in production and assembly, efficiency is not high, and overall hardware consumption is not low.
And, power supply product circuit structure becomes increasingly complex, multiple electronic component forms a complicated circuit jointly, each part can produce noise at work, interfere with each other, therefore must consider EMI and EMC in the design, thus ensure that the operation of each part is unaffected, and transformer is as the core component of power supply, performing shielding is important considerations.In prior art, all can have a winding, be designed to shield winding in the design of transformer, but increase shield winding in winding inside, line pack arrangement can be caused to increase, winding can be a lot, and volume can increase, complex process, increases the difficulty of procedure for producing.Therefore, researcher considers screening arrangement to arrange separately, thus reduces the difficulty of producing, and as Chinese patent CN201220450872 discloses a kind of transformer framework, comprise coil rack, the center of top of described coil rack is provided with through hole; The sidewall of described coil rack is provided with first ring connected in star and the second annular groove, for coiling primary coil and secondary coil; Shielding sheet is provided with between described first ring connected in star and the second annular groove.But the weak point of technique scheme is, shielding sheet is fixedly installed on transformer framework, once shielding copper sheet damages or due to the problem shielding copper ring shield effectiveness that cannot realize of coil, then need the skeleton that more renews or transformer, cause the waste of resource and manpower.
Summary of the invention
For prior art above shortcomings, the present invention proposes a kind of transformer framework, its reasonable in design, and shield effectiveness is good, and transformer coil winding process is simple, and screening arrangement is changed convenient, has saved manpower, has reduced production cost.
The technical solution adopted in the present invention is: a kind of transformer framework, comprise transformer framework body, described transformer framework body comprises left side skeleton and right side skeleton, described left side skeleton and right side skeleton arrange a winding region respectively, described two winding region center vertical are provided with an isolated area, be provided with draw-in groove in described isolated area, pluggable installation one shielding part in described draw-in groove, described shielding part and described draw-in groove matching form close.
As a further improvement on the present invention, described shielding part is PCB copper-clad plate.
As a further improvement on the present invention, the shape of described shielding part is back-shaped.
As a further improvement on the present invention, the top of described back-shaped shielding part is provided with a protuberance.
As a further improvement on the present invention, described transformer framework body is single injection-molded.
Due to the utilization of technique scheme, the present invention compared with prior art, there is following beneficial effect: transformer framework arranges left side skeleton and right side skeleton, be wound around two-stage coil respectively, skeleton structure advantages of simple, production or maintainer are easy to identification and distinguish different coils, transformer coil winding process is also relatively simple simultaneously, only need the installation that simply coil winding just can be realized coil in winding region, reduce the difficulty of procedure for producing, improve task performance and product quality; Two winding region center vertical are provided with an isolated area, pluggable installation one shielding part in isolated area, and shield effectiveness is better, effectively improves the electromagnetic interference problem of existing transformer, and screening arrangement is changed conveniently, has saved manpower, has reduced production cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, specific embodiment of the invention scheme is elaborated:
Fig. 1 is the front view of transformer framework provided by the invention;
Fig. 2 is the shielding part outside drawing of transformer framework provided by the invention;
Fig. 3 is the stereogram of transformer framework provided by the invention;
Fig. 4 is the vertical view of transformer framework provided by the invention;
In figure: 1 is transformer framework body; 2 is left side skeleton; 3 is right side skeleton; 4 is winding region, left side; 5 is winding region, right side; 6 is isolated area; 7 is transformer lead pin; 8 is draw-in groove; 9 is shielding part; 10 is the protuberance of shielding part.
Specific embodiments
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.The technological means that the present invention uses is the improvement to transformer framework, change the structure of skeleton, by shielding design on skeleton, namely two winding regions are set on skeleton, two winding region center vertical are provided with an isolated area, a draw-in groove is provided with, pluggable installation one shielding part in described draw-in groove in described isolated area.
Concrete, as shown in Figure 1, for a kind of transformer framework that the embodiment of the present invention provides, comprise the transformer framework body 1 of integrated injection molding, described transformer framework body 1 comprises left side skeleton 2 and right side skeleton 3, left side skeleton 2 and right side skeleton 3 on respectively side-by-side parallel be provided with four transformer lead pins 7, described left side skeleton 2 is provided with winding region 4, a left side, right side skeleton 3 arranges winding region 5, a right side, in coil-winding process, respectively two-stage coil can be wrapped in corresponding winding region respectively, not only the technique for coiling difficulty of coil greatly reduces, and be conducive to maintainer for the identification of coil and inspection, two the winding region center vertical in left and right are provided with an isolated area 6, a draw-in groove 8 is provided with in described isolated area 6.The present invention is mainly used in EE16 type and EE19 type transformer framework, and in EE16 type skeleton, isolated area thickness is 2.3mm, and draw-in groove thickness is 0.9mm; In EE19 type skeleton, isolated area thickness is 2.4mm, and draw-in groove thickness is 1.0mm.
Pluggable installation one shielding part 9 in described draw-in groove 8, described shielding part 9 closes with described draw-in groove 8 matching form, shielding part 9 is illustrated in figure 2 back-shaped plug-in unit, the shape in draw-in groove 8 inner vertical cross section is the U-shaped identical with back-shaped shielding part 9 length and width, and magnetic core of transformer is through the intermediate throughholes part of back-shaped shielding part.According to principle of electromagnetic shield-ing, namely electromagnetic shielding utilizes shielding material to intercept or decay conductively-closed region and extraneous electromagnetic energy travels.Because shield absorbs energy (eddy current loss), reflected energy (boundary reflection of electromagnetic wave on shield) and counteracting energy to all playing from the outside interference electromagnetic wave such as wire, cable, component, circuit or system and internal electrical magnetic wave (electromagnetic induction produces reverse electromagnetic field on the shielding layer, can offset part disturb electromagnetic wave) effect, so shield has the function weakening interference.Shielding part 9 should be metal material, such as adopts the metallic plates such as copper coin, iron plate, aluminium sheet, more satisfactory employing PCB copper-clad plate, copper softer, and material source is relatively more extensive, also relatively more cheap, is convenient to large-scale processing and produces.When transformer is assembled, shielding part 9 is needed to be inserted in the draw-in groove 8 of transformer framework, and once find that shield effectiveness is bad in the use procedure of assembling test stage or transformer, damaging or puncturing appears in such as shielding part 9, just need the shielding part 9 that more renews (in the present embodiment, shielding part 9 material used is PCB copper-clad plate), if there is no special instrument, it is free-hand that to extract shielding part 9 more difficult, therefore the present embodiment is provided with a protuberance 10 on the top of shielding part 9 especially, as shown in Figure 2, this protuberance 10 can be a part for PCB copper-clad plate, be made into integration when tailoring shielding part 9, also can be bonded in the adhesive plaster on shielding part 9 in addition, there is above-mentioned protuberance 10, shielding part 9 can be extracted by operating personnel very easily from draw-in groove 8, can the setting of shielding part 9 of plug owing to adopting, when coiling winding, just do not need the problem considering shield winding, only need the coiling considering common winding, greatly reduce the difficulty of production technology.In the process used, primary coil and secondary coil coiling on the winding region, left and right of this transformer framework, the shielding part 9 added in the middle of it will cut off the path of stray capacitance between primary coil and secondary coil, it is allowed to form electric capacity all over the ground, shield effectiveness is good, can reduce the interference of electromagnetism widely, the glitch simultaneously imported into for electrical network also has certain inhibitory action, meets the requirement of power supply to transformer framework.Adding of PCB copper-clad plate, add the creepage distance between primary coil and secondary coil, effectively improve the safety and reliability of power transformer product.
As stereogram and vertical view that Fig. 3,4 is transformer frameworks provided by the invention, can see that left and right sides winding region 4,5 is the groove of indent, there is between two grooves protruding isolated area 6, groove can carry out the coiling of winding easily, and isolated area 6 has U-shaped draw-in groove 8, U-shaped draw-in groove 8 is provided with positioner in the position of notch, and positioner not only facilitates the insertion of shielding part 9, is also conducive to the fixing of shielding part 9 simultaneously.
In sum, this skeleton is compared to the advantage of existing transformer framework: improve transformer framework, change the structure of skeleton, by shielding design on skeleton, instead of in product winding, and shielding part freely can plug and is installed in skeleton, shield effectiveness is better, effectively improves the electromagnetic interference problem of existing transformer; Add the creepage distance between primary coil and secondary coil, effectively improve the fail safe of transformer; The structural design of improvement reduces the area shared by transformer framework, and thus the volume of whole transformer diminishes relatively, thus can be applicable to the more and more less light source of charger of volume better.
The foregoing is only the preferred embodiment of this invention, not in order to limit the present invention, all done within the spirit and principles in the present invention any simple modification, equivalent variations and remodeling, still belong to the protection range of technical solution of the present invention.
Claims (5)
1. a transformer framework, comprise transformer framework body (1), described transformer framework body (1) comprises left side skeleton (2) and right side skeleton (3), it is characterized in that: on described left side skeleton (2) and right side skeleton (3), a winding region is set respectively, described two winding region center vertical are provided with an isolated area (6), draw-in groove (8) is provided with in described isolated area (6), pluggable installation one shielding part (9) in described draw-in groove (8), described shielding part (9) and described draw-in groove (8) matching form close.
2. a kind of transformer framework according to claim 1, is characterized in that: described shielding part (9) is PCB copper-clad plate.
3. a kind of transformer framework according to claim 1 and 2, is characterized in that: the shape of described shielding part (9) is back-shaped.
4. a kind of transformer framework according to claim 3, is characterized in that: the top of described back-shaped shielding part (9) is provided with a protuberance (10).
5. a kind of transformer framework according to claim 1 and 2, is characterized in that: described transformer framework body (1) is single injection-molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696832.1A CN104376993A (en) | 2014-11-26 | 2014-11-26 | Transformer framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696832.1A CN104376993A (en) | 2014-11-26 | 2014-11-26 | Transformer framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104376993A true CN104376993A (en) | 2015-02-25 |
Family
ID=52555848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410696832.1A Pending CN104376993A (en) | 2014-11-26 | 2014-11-26 | Transformer framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104376993A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831700A (en) * | 2018-06-14 | 2018-11-16 | 美的集团股份有限公司 | Transformer and electrical equipment including it |
| CN109166712A (en) * | 2018-08-03 | 2019-01-08 | 湖州同立光电材料有限公司 | A kind of miniaturization LLC loop transformers |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4652846A (en) * | 1983-08-04 | 1987-03-24 | Siemens Aktiengesellschaft | Small transformer with shield |
| JPH06181132A (en) * | 1992-12-11 | 1994-06-28 | Yokogawa Electric Corp | Transformer |
| JP2001110651A (en) * | 1999-10-12 | 2001-04-20 | Denken Seiki Kenkyusho:Kk | Thunder surge shield transformer |
| US20030038700A1 (en) * | 2001-08-21 | 2003-02-27 | Piechnick John Joseph | Low-power transformer for printed circuit boards |
| TWM360432U (en) * | 2009-03-13 | 2009-07-01 | Darfon Electronics Corp | Transformer and bobbin structure thereof |
| JP2011124337A (en) * | 2009-12-09 | 2011-06-23 | Fdk Corp | Transformer |
| CN102682968A (en) * | 2012-05-24 | 2012-09-19 | 广安市华蓥山领创电子有限公司 | Ultrathin high-frequency magnetic core transformer and production process thereof |
| CN202678062U (en) * | 2012-05-24 | 2013-01-16 | 广安市华蓥山领创电子有限公司 | High-frequency transformer |
| CN102881420A (en) * | 2012-09-06 | 2013-01-16 | 苏州市吴中区大陆电子设备厂 | Transformer framework |
| CN204204601U (en) * | 2014-11-26 | 2015-03-11 | 广安鑫宇电子有限公司 | A kind of transformer framework |
-
2014
- 2014-11-26 CN CN201410696832.1A patent/CN104376993A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4652846A (en) * | 1983-08-04 | 1987-03-24 | Siemens Aktiengesellschaft | Small transformer with shield |
| JPH06181132A (en) * | 1992-12-11 | 1994-06-28 | Yokogawa Electric Corp | Transformer |
| JP2001110651A (en) * | 1999-10-12 | 2001-04-20 | Denken Seiki Kenkyusho:Kk | Thunder surge shield transformer |
| US20030038700A1 (en) * | 2001-08-21 | 2003-02-27 | Piechnick John Joseph | Low-power transformer for printed circuit boards |
| TWM360432U (en) * | 2009-03-13 | 2009-07-01 | Darfon Electronics Corp | Transformer and bobbin structure thereof |
| JP2011124337A (en) * | 2009-12-09 | 2011-06-23 | Fdk Corp | Transformer |
| CN102682968A (en) * | 2012-05-24 | 2012-09-19 | 广安市华蓥山领创电子有限公司 | Ultrathin high-frequency magnetic core transformer and production process thereof |
| CN202678062U (en) * | 2012-05-24 | 2013-01-16 | 广安市华蓥山领创电子有限公司 | High-frequency transformer |
| CN102881420A (en) * | 2012-09-06 | 2013-01-16 | 苏州市吴中区大陆电子设备厂 | Transformer framework |
| CN204204601U (en) * | 2014-11-26 | 2015-03-11 | 广安鑫宇电子有限公司 | A kind of transformer framework |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831700A (en) * | 2018-06-14 | 2018-11-16 | 美的集团股份有限公司 | Transformer and electrical equipment including it |
| CN109166712A (en) * | 2018-08-03 | 2019-01-08 | 湖州同立光电材料有限公司 | A kind of miniaturization LLC loop transformers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104981347A (en) | Shielding film, shielding circuit board and terminal device | |
| CN204204601U (en) | A kind of transformer framework | |
| CN102272869A (en) | High frequency transformers | |
| CN104376993A (en) | Transformer framework | |
| CN210245282U (en) | Transformer | |
| CN205828105U (en) | A kind of vertical transformer skeleton | |
| CN102074340B (en) | Transformer structure and manufacturing method thereof | |
| CN104377012B (en) | Transformer | |
| CN103259399A (en) | Method for achieving power adapter electromagnetic compatibility | |
| CN201754366U (en) | Transformer structure | |
| CN109920633A (en) | Reduce the transformer of electromagnetic interference | |
| CN202815032U (en) | Strong-magnetic-preventing three-phase kilowatt-hour meter | |
| CN103415136B (en) | A kind of circuit board of electromagnetism interference | |
| CN102881405B (en) | Combining structure of transformer and inductance element and forming method thereof | |
| CN103400680A (en) | Hollow coil with closed magnetic circuit | |
| CN202094796U (en) | Input power supply filtering circuit device of frequency converter | |
| CN202977133U (en) | Common mode inductance coil | |
| CN209708809U (en) | Reduce the transformer of electromagnetic interference | |
| CN202905435U (en) | 96PIN novel combined type kilomega network transformer | |
| CN201327913Y (en) | Multifunctional lengthening RJ45 connector | |
| CN102522188B (en) | Fixing base for inductance line terminal | |
| CN202269085U (en) | High voltage generator mechanical structure | |
| CN205317833U (en) | Three -phase current transformer's magnetism shield assembly | |
| CN205828088U (en) | The transformator of E-type magnetic core | |
| CN203706776U (en) | Inductance module and base thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150225 |