CN201594463U - Laminated chip flat-plate transformer - Google Patents
Laminated chip flat-plate transformer Download PDFInfo
- Publication number
- CN201594463U CN201594463U CN2009201349743U CN200920134974U CN201594463U CN 201594463 U CN201594463 U CN 201594463U CN 2009201349743 U CN2009201349743 U CN 2009201349743U CN 200920134974 U CN200920134974 U CN 200920134974U CN 201594463 U CN201594463 U CN 201594463U
- Authority
- CN
- China
- Prior art keywords
- transformer
- winding
- former limit
- iron core
- chip
- 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.)
- Expired - Fee Related
Links
- 238000004804 winding Methods 0.000 claims abstract description 56
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 230000004888 barrier function Effects 0.000 claims description 8
- 238000003475 lamination Methods 0.000 claims description 8
- 229920000784 Nomex Polymers 0.000 claims description 3
- 239000004763 nomex Substances 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 230000002500 effect on skin Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000013021 overheating Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses a laminated chip flat-plate transformer, which comprises an iron core. Primary windings are sleeved on the iron core, each primary winding is formed by serially connecting at least two chip coils, a secondary winding formed by chip coils is disposed between the two chip coils of each primary winding, and insulation layers are arranged among the primary windings and the secondary windings and among the primary windings. The laminated chip flat-plate transformer can reduce electric leakage, resolves the problem that magnetic cores of conventional transformers are over heated locally, improves skin effect and proximity effect, has extremely high power density and efficiency, and is low in electromagnetic interference, low in price of preparation materials which are easy to obtain.
Description
Technical field
The utility model relates to a kind of electronic devices and components, relates in particular to a kind of improvement of transformer device structure.
Background technology
Transformer be a kind of common electric equipment, can be used to the alternating voltage of certain numerical value is transformed to the alternating voltage of another numerical value of same frequency, also can change the numerical value of alternating current and transforming impedance or change phase place.Conventional transformer constitutes by being enclosed within the two or more windings on iron core-closed, and iron core and coil are the elements of transformer.
Conventional each winding of transformer around forming, exists leakage inductance big with skeleton and enamelled wire on the performance, skin effect and proximity effect are serious, and magnetic core has problems such as local overheating.
Therefore be necessary prior art is improved.
The utility model content
The purpose of this utility model is, at the above-mentioned shortcoming of prior art, provides a kind of and can reduce leakage inductance, and can eliminate the magnetic core local overheating that conventional transformer exists, and improves the novel laminated chip flat-plate transformer of skin effect and proximity effect.
The technical solution of the utility model is:
A kind of lamination sheet type flat-plate transformer comprises iron core, wherein, is arranged with former limit winding on the described iron core, and described former limit winding is composed in series by at least two chip coils; Between two chip coils of each former limit winding, be provided with a secondary winding of forming by chip coil; Between described former limit winding and the described secondary winding, and described former limit winding between be provided with insulating barrier.
Transformer described in the utility model, wherein, described chip coil is a sheet open loop shape copper coin.
Transformer described in the utility model, wherein, described secondary winding is made up of a sheet open loop shape copper coin, and described former limit winding is composed in series by two sheet open loop shape copper coins.
Transformer described in the utility model, wherein, described iron core is a FERRITE CORE.
Transformer described in the utility model, wherein, described insulating barrier is Nomex (Nomex nylon) (NOMEX) paper.
Transformer of the present utility model can reduce leakage inductance, eliminates the magnetic core local overheating that conventional transformer exists, and skin effect, proximity effect are improved, and have very high power density and efficient, and electromagnetic interference is low, and the preparation material is cheap and easy to get.
Description of drawings
Fig. 1 is the former limit of the lamination sheet type flat-plate transformer winding installation diagram of the utility model embodiment;
Fig. 2 is the lamination sheet type flat-plate transformer secondary winding installation diagram of the utility model embodiment;
Fig. 3 is the copper coin structure chart of the composition secondary winding of the utility model embodiment;
Fig. 4 is the lamination sheet type flat-plate transformer circuit connection diagram of the utility model embodiment;
Fig. 5 is the lamination sheet type flat-plate transformer circuit theory diagrams of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, will be described in detail preferred embodiment of the present utility model.
The former limit of lamination sheet type flat-plate transformer of the present utility model winding assembly structure figure as shown in Figure 1, it comprises iron core 110, is with two former limit windings 130 on the iron core 110, is provided with insulating barrier 120 between the former limit winding 130.Former limit winding 130 and secondary winding 140 as shown in Figure 2 all adopt chip coil to form.Its limit, Central Plains winding 130 is made up of at least two chip coils, as shown in Figure 1, during assembling, two insulating barriers 120 among Fig. 2 can be added on secondary winding 140 two ends, add between two chip coils of former limit winding as shown in Figure 1 then, be enclosed within on the iron core with former limit winding 130, form the flat-plate transformer of present embodiment.
In the present embodiment, iron core preferably adopts FERRITE CORE; Insulating barrier can adopt NOMEX paper, or other insulating material.Chip coil can be open loop shape copper coin 200 as shown in Figure 3, or other flake conductive materials.Can adopt the open loop shape copper coin 200 of individual pen to form the secondary winding, former limit winding can be composed in series by 200 stacks of two open loop shape copper coins, as shown in Figure 4.Owing to adopted the sheet material, can increase the ratio of the surface area and the volume of coil, increase the sectional area of winding, the equivalent resistance that reduces inductance reduces copper loss, helps heat radiation simultaneously.Also can make the turn-to-turn loss between former limit and the secondary winding very little, can reduce core loss effectively.
Present embodiment shortens magnetic circuit by whole design of transformer is flat, improves saturation flux density, reduces iron loss and copper loss, thereby makes its temperature rise under the high frequency state be starkly lower than conventional transformer.Owing to shortened Transformer Winding length, make it have fabulous temperature characteristic design simultaneously, can in very little encapsulation volume, reach very high current density.
In the present embodiment because the open loop shape copper coin of forming the secondary winding is provided with insulating barrier between the every open loop shape copper coin between two open loop shape copper coins forming former limit winding, make each secondary winding all with same former limit winding mutually lotus root close.Therefore the number of ampere turns that electric current produces in the secondary winding equates (ignoring exciting current) with the number of ampere turns that former limit winding current produces, and winding current distributes impartial, does not influence other elements when using in shunt rectifier circuit, especially is suitable for shunt rectifier circuit.
In the present embodiment, two former limit windings and two secondary windings can be set on same iron core, as shown in Figure 4, the exit of two former limit windings of institute's composition transformer is respectively 5,7 and 6,8; The exit of two secondary windings is respectively 1,3 and 2,4, and its equivalent schematic diagram as shown in Figure 5.
Transformer of the present utility model can by on a small quantity cheaply element form, easy to assembly, and output is very short and be close fit to the line of accessory, so the leakage inductance on the winding also is minimum.Because its leakage inductance is very little, switching loss is very low, be added in its connected components on stress reduce, therefore can be less and the cost of its link.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (5)
1. a lamination sheet type flat-plate transformer comprises iron core, it is characterized in that, is arranged with former limit winding on the described iron core, and described former limit winding is composed in series by at least two chip coils;
Between two chip coils of each former limit winding, be provided with a secondary winding of forming by chip coil;
Between described former limit winding and the described secondary winding, and described former limit winding between be provided with insulating barrier.
2. transformer as claimed in claim 1 is characterized in that, described chip coil is a sheet open loop shape copper coin.
3. transformer as claimed in claim 2 is characterized in that, described secondary winding is made up of a sheet open loop shape copper coin, and described former limit winding is composed in series by two sheet open loop shape copper coins.
4. transformer as claimed in claim 1 is characterized in that, described insulating barrier is a NOMEX paper.
5. transformer as claimed in claim 1 is characterized in that, described iron core is a FERRITE CORE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201349743U CN201594463U (en) | 2009-08-20 | 2009-08-20 | Laminated chip flat-plate transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201349743U CN201594463U (en) | 2009-08-20 | 2009-08-20 | Laminated chip flat-plate transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201594463U true CN201594463U (en) | 2010-09-29 |
Family
ID=42776532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201349743U Expired - Fee Related CN201594463U (en) | 2009-08-20 | 2009-08-20 | Laminated chip flat-plate transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201594463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610378A (en) * | 2012-02-07 | 2012-07-25 | 深圳麦格米特电气股份有限公司 | Flat transformer for switching power supply |
-
2009
- 2009-08-20 CN CN2009201349743U patent/CN201594463U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610378A (en) * | 2012-02-07 | 2012-07-25 | 深圳麦格米特电气股份有限公司 | Flat transformer for switching power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN JINGQUANHUA ELECTRONICS CO., LTD. Free format text: FORMER OWNER: LI ZHANGONG Effective date: 20110805 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 SHENZHEN, GUANGDONG PROVINCE TO: 518110 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110805 Address after: 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Library pit Jingquan Industrial Park Patentee after: Shenzhen Jingquanhua Electronics Co., Ltd. Address before: 518000, Baoan District City, Guangdong province Shenzhen people street, sunrise impression garden A District 10, unit 601, room 3 Patentee before: Li Zhangong |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN JINGQUANHUA TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN JINGQUANHUA ELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Library pit Jingquan Industrial Park Patentee after: Shenzhen JingQuanHua Electronics Co., Ltd. Address before: 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Library pit Jingquan Industrial Park Patentee before: Shenzhen Jingquanhua Electronics Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20180820 |