CN202662441U - Planar transformer for light-emitting diode (LED) lighting tube - Google Patents
Planar transformer for light-emitting diode (LED) lighting tube Download PDFInfo
- Publication number
- CN202662441U CN202662441U CN 201220070065 CN201220070065U CN202662441U CN 202662441 U CN202662441 U CN 202662441U CN 201220070065 CN201220070065 CN 201220070065 CN 201220070065 U CN201220070065 U CN 201220070065U CN 202662441 U CN202662441 U CN 202662441U
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- pcb board
- pcb
- winding
- flat surface
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Abstract
The utility model provides a planar transformer for a light-emitting diode (LED) lighting tube. The planar transformer comprises a plurality of printed circuit boards (PCBs) and ferrite cores, wherein the ferrite cores are arranged on a PCB group; windings are arranged among the ferrite cores; the planar transformer windings which are arranged on the PCBs comprise a primary winding, a secondary winding and an auxiliary winding; and the PCBs are connected with one another through PIN needles which pass through welding holes at edges of the PCBs. By adoption of a plurality of PCBs, the planar transformer is simple in structure and large in radiating area; due to good magnetic shielding effects of the ferrite cores, radio frequency interference can be effectively inhibited; and besides, each PCB is independent, so that the structure of the planar transformer can be debugged conveniently at any time according to test results, and the interference resisting effect can be well improved.
Description
Technical field
The utility model relates to a kind of transformer, is specifically related to a kind of complanation transformer of LED fluorescent tube illumination driving power source.
Background technology
The traditional transformer that is used on the LED driving power at present is comprised of FERRITE CORE, skeleton, copper coil, insulating tape, and is bulky and easily produce electromagnetic interference, complex manufacturing.The LED fluorescent tube time need to be installed in radiator inside to driving power usually in assembling, and the requirement of transformer highly is lower than 10mm, and traditional transformer is difficult to meet the demands.
Summary of the invention
The utility model purpose is to provide a kind of LED fluorescent tube flat surface transformer, it is with the transformer complanation, dwindled the volume of transformer, and product structure is simple, electromagnetic interference is low, in addition, the structure of multi-disc pcb board combination so that the later stage also can adjust flexibly the structure of flat surface transformer.
In order to solve these problems of the prior art, the technical scheme that the utility model provides is:
A kind of LED fluorescent tube flat surface transformer, described flat surface transformer comprises some pcb boards and FERRITE CORE, described FERRITE CORE is located on the pcb board group, be provided with the flat surface transformer winding between described FERRITE CORE, the flat surface transformer winding of being located on the described pcb board comprises armature winding, secondary winding and auxiliary winding, and the welding hole that passes the pcb board edge by the PIN pin between pcb board and the pcb board links to each other.
More detailed technical scheme is: described flat surface transformer comprises some pcb boards and FERRITE CORE, described FERRITE CORE is located on the pcb board group, be provided with the flat surface transformer winding between described FERRITE CORE, the flat surface transformer winding of being located on the described pcb board comprises armature winding, secondary winding and auxiliary winding, the welding hole that passes the pcb board edge by the PIN pin between pcb board and the pcb board links to each other, described pcb board is the laminated multi-layer pcb board, described laminated multi-layer pcb board comprises some layers of PCB layer, be equipped with the identical winding of structure on every layer of PCB layer, link to each other with welding hole by the set perforation in pcb board edge between PCB layer and the PCB layer.
In addition, as a supplement, described auxiliary winding can be arranged on the same pcb board with secondary winding.
Than solution of the prior art, the utility model advantage is:
1. the utility model adopts the flat surface transformer that the multi-disc pcb board forms, it is simple in structure, area of dissipation is large, because the good Magnetic Shielding Effectiveness of magnetic core, can effectively suppress radio frequency interference, in addition, because every pcb board is independently, thereby can debug the flat surface transformer structure at any time according to the test effect, it is more convenient to debug, and anti-jamming effectiveness also can be improved better;
2. the auxiliary winding in the utility model can be arranged on the same pcb board with secondary winding, because the flat surface transformer structure can be regulated according to concrete test case, not only radio frequency interference can be suppressed to minimumly, can also improve better insulation effect.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the pcb board wiring diagram of the utility model embodiment;
Fig. 2 is the top layer trace-diagram of the pcb board of the utility model embodiment;
Fig. 3 is the second layer trace-diagram of the pcb board of the utility model embodiment;
Fig. 4 is the 3rd layer of trace-diagram of the pcb board of the utility model embodiment;
Fig. 5 is the bottom trace-diagram of the pcb board of the utility model embodiment.
Embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are not limited to limit the scope of the invention for explanation the present invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment:
The described LED fluorescent tube of the present embodiment with flat surface transformer as shown in Figure 1, described flat surface transformer comprises that five pcb boards are respectively pcb board 1 from top to bottom, pcb board 2PCB plate 3, pcb board 4, pcb board 5, be preset with the through hole that is used for placing FERRITE CORE that is complementary on five pcb boards, described FERRITE CORE is arranged in the described through hole, be provided with the flat surface transformer winding between described FERRITE CORE, the flat surface transformer winding of being located on the described pcb board comprises armature winding, secondary winding and auxiliary winding, described armature winding is arranged on pcb board 1 and the pcb board 5, described secondary winding is arranged at and is numbered pcb board 2, on pcb board 3 and the pcb board 4, be used to the auxiliary winding of PCB chip power supply to be located on the pcb board 2 with secondary winding.
Described pcb board is the laminated multi-layer pcb board, described laminated multi-layer pcb board comprises four layers of PCB layer, the structure of five pcb boards is respectively such as Fig. 2, Fig. 3, Fig. 4, shown in Figure 5 from top to bottom, be equipped with flat conductive leads as winding on every layer of PCB layer, link to each other with pcb board edge welding hole by set perforation between PCB layer and the PCB layer and be combined into pcb board, and the welding hole that passes the pcb board edge by the PIN pin again between pcb board and the pcb board is connected to form the transformer of planar structure, and the packing material in the PCB is as the insulating material between the winding.
The flat surface transformer that the utility model adopts the multi-disc pcb board to form, it is simple in structure, area of dissipation is large, because the good Magnetic Shielding Effectiveness of magnetic core, can effectively suppress radio frequency interference, in addition, because every pcb board is independently, thereby can debug the flat surface transformer structure at any time according to the test effect, it is more convenient to debug, and anti-jamming effectiveness also can be improved better.
Auxiliary winding in the utility model can be arranged on the same pcb board with secondary winding, because the flat surface transformer structure can be regulated according to concrete test case according to the pcb board numbering, not only radio frequency interference can be suppressed to minimumly, can also improve better insulation effect.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalent transformations that Spirit Essence is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (3)
1. LED fluorescent tube flat surface transformer, it is characterized in that, described flat surface transformer comprises some pcb boards and FERRITE CORE, described FERRITE CORE is located on the pcb board group, be provided with the flat surface transformer winding between described FERRITE CORE, the flat surface transformer winding of being located on the described pcb board comprises armature winding, secondary winding and auxiliary winding, and the welding hole that passes the pcb board edge by the PIN pin between pcb board and the pcb board links to each other.
2. a kind of LED fluorescent tube flat surface transformer according to claim 1, it is characterized in that, described pcb board is the laminated multi-layer pcb board, described laminated multi-layer pcb board comprises some layers of PCB layer, be equipped with the identical winding of structure on every layer of PCB layer, link to each other with welding hole by the set perforation in pcb board edge between PCB layer and the PCB layer.
3. a kind of LED fluorescent tube flat surface transformer according to claim 1 is characterized in that, described auxiliary winding can be arranged on the same pcb board with secondary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220070065 CN202662441U (en) | 2012-02-29 | 2012-02-29 | Planar transformer for light-emitting diode (LED) lighting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220070065 CN202662441U (en) | 2012-02-29 | 2012-02-29 | Planar transformer for light-emitting diode (LED) lighting tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662441U true CN202662441U (en) | 2013-01-09 |
Family
ID=47457329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220070065 Expired - Fee Related CN202662441U (en) | 2012-02-29 | 2012-02-29 | Planar transformer for light-emitting diode (LED) lighting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662441U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103408A (en) * | 2013-04-02 | 2014-10-15 | 宝辉科技（龙南）有限公司 | Transformer |
| CN107818865A (en) * | 2017-09-19 | 2018-03-20 | 东南大学 | A kind of high frequency centre tap flat surface transformer in LLC half bridge resonant |
| US10199153B2 (en) | 2014-08-19 | 2019-02-05 | Cyntec Co., Ltd | PCB inter-layer conductive structure applicable to large-current PCB |
-
2012
- 2012-02-29 CN CN 201220070065 patent/CN202662441U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103408A (en) * | 2013-04-02 | 2014-10-15 | 宝辉科技（龙南）有限公司 | Transformer |
| US10199153B2 (en) | 2014-08-19 | 2019-02-05 | Cyntec Co., Ltd | PCB inter-layer conductive structure applicable to large-current PCB |
| CN107818865A (en) * | 2017-09-19 | 2018-03-20 | 东南大学 | A kind of high frequency centre tap flat surface transformer in LLC half bridge resonant |
| CN107818865B (en) * | 2017-09-19 | 2019-05-31 | 东南大学 | A kind of high frequency centre tap flat surface transformer in LLC half bridge resonant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20140229 |