CN103247429A - Transformer framework, transformer and switching power supply - Google Patents
Transformer framework, transformer and switching power supply Download PDFInfo
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- CN103247429A CN103247429A CN2013101593743A CN201310159374A CN103247429A CN 103247429 A CN103247429 A CN 103247429A CN 2013101593743 A CN2013101593743 A CN 2013101593743A CN 201310159374 A CN201310159374 A CN 201310159374A CN 103247429 A CN103247429 A CN 103247429A
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Abstract
The invention discloses a transformer framework, a transformer with the transformer framework, and a switching power supply with the transformer. The transformer framework comprises a first winding portion used for winding first secondary coils, a second winding portion used for winding second secondary coils and a third winding portion used for winding primary coils. A magnetic core of the transformer penetrates through the first winding portion, the second winding portion and the third winding portion. Output power of the transformer is increased, and production cost of the transformer is reduced under the condition that the same output power is reached.
Description
Technical field
The present invention relates to technical field of electronic products, particularly a kind of power supply circuits for panel TV set.
Background technology
In the television class product, the LED TV more and more is subjected to consumer's favor, and especially large scale LED TV becomes main flow gradually with its cost performance height.Be example with 42 cun LED TVs, its input power is less than 100W, and 65 cun LED TVs also have only 200W, and 47 cun traditional LCD TV input powers have just reached more than the 300W.The demand that this shows large scale LED TV is bound to present explosive growth, and television set manufacturer need constantly develop the high product of cost performance and satisfy the demands of consumers.
In the prior art, television set comprises be used to the Switching Power Supply that power supply is provided, this Switching Power Supply is as the core component in the television set, and wherein transformer is the major control element of Switching Power Supply power output, and all there is peak power output accordingly in general transformer.When a transformer can't reach needed power output, adopt the magnetic core of two same types and the transformer of skeleton to carry out elementary series connection usually, the mode of secondary parallel connection reaches.But owing to adopt the transformer that substitutes of two transformers, thereby make that the cost of Switching Power Supply is higher.
Summary of the invention
Main purpose of the present invention is to provide a kind of skeleton of transformer, is intended to improve the power output of transformer, is implemented in the production cost that reduces transformer under the condition that reaches identical power output.
To achieve these goals, the invention provides a kind of skeleton of transformer, the skeleton of this transformer comprises for first winding section of twining first secondary coil, is used for twining second winding section of second subprime coil and the 3rd winding section that is used for twining primary coil, and the magnetic core of wherein said transformer runs through described first winding section, second winding section and the 3rd winding section.
Preferably, described the 3rd winding section is between first winding section and second winding section.
Preferably, described first winding section end that deviates from described the 3rd winding section is provided with the output pin that is connected with first secondary coil; The end that described second winding section deviates from described the 3rd winding section is provided with the output pin that is connected with the second subprime coil; Described the 3rd winding section is provided with the input pin/output pin that is connected with primary coil.
Preferably, described the 3rd winding section baffle plate that stretches out, this baffle plate and the input pin/output pin that is connected primary coil all are positioned at the same side of the 3rd winding section, are used for restriction and connect the input pin/output pin of primary coil to the safe distance of magnetic core.
Preferably, described second winding section is provided with first fluting.
The present invention also provides a kind of transformer, this transformer comprises the skeleton of transformer, the skeleton of this transformer comprises for first winding section of twining first secondary coil, is used for twining second winding section of second subprime coil and the 3rd winding section that is used for twining primary coil, and the magnetic core of wherein said transformer runs through described first winding section, second winding section and the 3rd winding section; Described transformer also comprises first secondary coil that is wound in described first winding section, is wound in the second subprime coil of second winding section, and the primary coil that is wound in described the 3rd winding section.
Preferably, described transformer also comprises for the isolating device of separating primary coil and first secondary coil and primary coil and second subprime coil.
Preferably, described isolating device is fixed with the skeleton of described transformer and is connected, and described primary coil is wrapped in the 3rd winding section.
Preferably, described isolating device is provided with second fluting for heat radiation.
The present invention also provides a kind of Switching Power Supply, this Switching Power Supply comprises transformer, this transformer comprises the skeleton of transformer, the skeleton of this transformer comprises for first winding section of twining first secondary coil, is used for twining second winding section of second subprime coil and the 3rd winding section that is used for twining primary coil, and the magnetic core of wherein said transformer runs through described first winding section, second winding section and the 3rd winding section; Described transformer also comprises first secondary coil that is wound in described first winding section, is wound in the second subprime coil of second winding section, and the primary coil that is wound in described the 3rd winding section; Described first secondary coil and second subprime coils from parallel connection of coils.
The present invention arranges first winding section, second winding section and the 3rd winding section by the skeleton at transformer, thereby after first secondary coil, second subprime coil and primary coil are wound on the skeleton, by first secondary coil and second subprime coil are carried out parallel connection, thereby improved the power output of transformer.Simultaneously carry out parallel connection with respect to prior art by two transformers of the same type, reaching the production cost that can reduce transformer under the condition of identical power output.
Description of drawings
Fig. 1 is the structural representation of skeleton one embodiment of transformer of the present invention;
Fig. 2 is the structural representation of Fig. 1 for transformer one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
The invention provides a kind of skeleton of transformer.
See figures.1.and.2, Fig. 1 is the structural representation of skeleton one embodiment of transformer of the present invention; Fig. 2 is the structural representation of Fig. 1 for transformer one embodiment of the present invention.The skeleton of the transformer that present embodiment provides comprises for first winding section 21 of twining first secondary coil 11, is used for twining second winding section 22 of second subprime coil 12 and the 3rd winding section 23 that is used for twining primary coil 13, and the magnetic core 26 of wherein said transformer runs through described first winding section 21, second winding section 22 and the 3rd winding section 23.
In the present embodiment, the position of first winding section 21, second winding section 22 and the 3rd winding section 23 can arrange according to actual needs, for the voltage that guarantees first secondary coil 11 and the 12 circle outputs of second subprime line is consistent, preferably, above-mentioned the 3rd winding section 23 arranges between first winding section 21 and second winding section 22.Above-mentioned first winding section 21, second winding section 22 and the 3rd winding section 23 are for separating the coiling window of formation by two dividing plates 14.
Should be noted that above-mentioned magnetic core 26 can be classified as in the present embodiment secondary, thereby need not to consider safe distance between magnetic core 26 and the secondary coil, therefore can reduce the skeleton gap between secondary coil and the magnetic core 26.Owing to increased the winding turns of above-mentioned first secondary coil 11 and second subprime coil 12, therefore can under the constant situation of the length that guarantees existing skeleton, 3 winding sections be set.
The present invention arranges first winding section 21, second winding section 23 and the 3rd winding section 23 by the skeleton 1 at transformer, thereby after first secondary coil 11, second subprime coil 12 and primary coil 13 are wound on the skeleton 1, by first secondary coil 11 and second subprime coil 12 are carried out parallel connection, thereby improved the power output of transformer.Simultaneously carry out parallel connection with respect to prior art by two transformers of the same type, reaching the production cost that can reduce transformer under the condition of identical power output.
Based on above-described embodiment, in the present embodiment, between first winding section 21 and second winding section 22, make detailed description with 23 settings of the 3rd winding section.Particularly, above-mentioned first winding section 21 end that deviates from described the 3rd winding section 23 is provided with the output pin that is connected with first secondary coil 11; The end that described second winding section 22 deviates from described the 3rd winding section 23 is provided with the output pin that is connected with second subprime coil 12; Described the 3rd winding section 23 is provided with the input pin/output pin that is connected with primary coil 13.
In the present embodiment, position and the quantity of the above-mentioned input pin/output pin that is connected with first secondary coil 11, second subprime coil 12 and primary coil 13 respectively can arrange according to actual needs, as long as make things convenient for each pin to insert circuit board.Particularly, can be had by the relative position of above-mentioned two dividing plates 14 to skeleton 1 outside and extend an extension, the input pin/output pin of above-mentioned connection primary coil is arranged on the corresponding extension.
Further, above-mentioned the 3rd winding section 23 baffle plate 24 that stretches out, this baffle plate 24 and the input pin/output pin that is connected primary coil all are positioned at the same side of the 3rd winding section 23, are used for restriction and connect the input pin/output pin of primary coil 13 to the safe distance of magnetic core 26.
In the present embodiment, connect the input pin/output pin of primary coils to the safe distance of magnetic core 26 by baffle plate 24 restriction will be set, so can effectively guarantee the safe distance between magnetic core 26 and the input pin/output pin that is connected primary coil 13.Particularly, this baffle plate 26 is connected with aforementioned barriers 14 one, and between the input pin/output pin and magnetic core 26 that connect primary coil 13.
Further, described second winding section 22 is provided with first fluting 221.Because the caloric value of primary coil 13 is bigger, therefore offer first fluting 221 in second winding section 22 in the present embodiment, be conducive to primary coil 13 heat radiations, effectively guarantee the transformer operate as normal.
Please continue to see figures.1.and.2, the present invention also provides a kind of transformer, this transformer comprises skeleton 1, this skeleton 1 is the skeleton in above-mentioned, and its concrete structure can not repeat them here with reference to aforementioned, in the present embodiment, this transformer also comprises first secondary coil 11 that is wound in described first winding section 21, is wound in the second subprime coil 12 of second winding section 22, and the primary coil 13 that is wound in described the 3rd winding section 23.Therefore present embodiment has improved the power output of transformer owing to the above-mentioned skeleton 1 that adopts.Simultaneously carry out parallel connection with respect to prior art by two transformers of the same type, reaching the production cost that can reduce transformer under the condition of identical power output.
In the present embodiment, the lead thickness degree of above-mentioned first secondary coil 11, second subprime coil 12 and primary coil 13 can arrange according to actual needs, and winding turns is consistent with the design of conventional transformer.Preferably the turn ratio between first secondary coil 11, second subprime coil 12 and the primary coil 13 is 8:8:1.Little in order to guarantee primary coil 13 caloric values, so the lead of primary coil 13 will be coarser than first secondary coil 11, second subprime coil 12.
Further, above-mentioned transformer also comprises for separating primary coil 13 and first secondary coil 11 and primary coil 13 isolating device 25 with second subprime coil 12.
In the present embodiment, above-mentioned isolating device 25 adopts insulating material to make, for increasing safe distance between primary coil 13 and first secondary coil 11, and safe distance between primary coil 13 and the second subprime coil 12, this safe distance comprises electric clearance and creepage distance.
Should be noted that described isolating device 25 and the connected mode of the skeleton 1 of described transformer can arrange according to actual needs, be preferably the connection that is fixed, and described primary coil 13 is wrapped in the 3rd winding section 23 in the present embodiment.
Further, based on above-described embodiment, in the present embodiment, above-mentioned isolating device 25 is provided with second fluting 251 for heat radiation.Owing to second fluting 251 is set, therefore can improves the heat dissipation capacity of primary coil 13.
The present invention also provides a kind of Switching Power Supply, this switching mode power supply transformer, this transformer be transformer in above-described embodiment, its concrete structure can not repeat them here with reference to aforementioned, wherein, above-mentioned first secondary coil and second subprime coils from parallel connection of coils.Because the technical scheme of the above-mentioned transformer that the Switching Power Supply that provides of present embodiment adopts, therefore improved the power output of transformer.Simultaneously carry out parallel connection with respect to prior art by two transformers of the same type, reaching the production cost that can reduce transformer under the condition of identical power output.Improve the cost performance of Switching Power Supply in addition, can bring bigger economic benefit, therefore be suitable for industrial production more.
Below only be the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the skeleton of a transformer, it is characterized in that, comprise for first winding section of twining first secondary coil, be used for twining second winding section of second subprime coil and the 3rd winding section that is used for twining primary coil, the magnetic core of wherein said transformer runs through described first winding section, second winding section and the 3rd winding section.
2. the skeleton of transformer as claimed in claim 1 is characterized in that, described the 3rd winding section is between first winding section and second winding section.
3. the skeleton of transformer as claimed in claim 2 is characterized in that, the end that described first winding section deviates from described the 3rd winding section is provided with the output pin that is connected with first secondary coil; The end that described second winding section deviates from described the 3rd winding section is provided with the output pin that is connected with the second subprime coil; Described the 3rd winding section is provided with the input pin/output pin that is connected with primary coil.
4. the skeleton of transformer as claimed in claim 3, it is characterized in that, described the 3rd winding section baffle plate that stretches out, this baffle plate and the input pin/output pin that is connected primary coil all are positioned at the same side of the 3rd winding section, are used for restriction and connect the input pin/output pin of primary coil to the safe distance of magnetic core.
5. the skeleton of transformer as claimed in claim 2 is characterized in that, described the 3rd winding section is provided with first fluting.
6. transformer, it is characterized in that, comprise the skeleton as each described transformer in the claim 1 to 5, be wound in first secondary coil of described first winding section, be wound in the second subprime coil of second winding section, and the primary coil that is wound in described the 3rd winding section.
7. transformer as claimed in claim 6 is characterized in that, also comprises for the isolating device of separating primary coil and first secondary coil and primary coil and second subprime coil.
8. as transformer as described in the claim 7, it is characterized in that described isolating device is fixed with the skeleton of described transformer and is connected, and described primary coil is wrapped in the 3rd winding section.
9. as transformer as described in the claim 8, it is characterized in that described isolating device is provided with second fluting for heat radiation.
10. a Switching Power Supply is characterized in that, comprises as each described transformer in the claim 6 to 9, described first secondary coil and second subprime coils from parallel connection of coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101593743A CN103247429A (en) | 2013-05-02 | 2013-05-02 | Transformer framework, transformer and switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101593743A CN103247429A (en) | 2013-05-02 | 2013-05-02 | Transformer framework, transformer and switching power supply |
Publications (1)
| Publication Number | Publication Date |
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| CN103247429A true CN103247429A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2013101593743A Pending CN103247429A (en) | 2013-05-02 | 2013-05-02 | Transformer framework, transformer and switching power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221418A (en) * | 2015-03-04 | 2017-09-29 | 江苏理工学院 | Switch transformer |
| CN110808149A (en) * | 2019-10-11 | 2020-02-18 | 西安交通大学 | Low-leakage-inductance multistage multi-primary-side multi-secondary-side pulse transformer and winding method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007086650A1 (en) * | 2006-01-26 | 2007-08-02 | Dong Bang Electric Ind., Ltd. | Outdoor dry transformer having shield made of high functional fiber |
| CN200959279Y (en) * | 2006-09-22 | 2007-10-10 | 东莞创慈磁性元件有限公司 | High-voltage isolated transformer structure |
| CN101430964A (en) * | 2008-08-21 | 2009-05-13 | 深圳创维－Rgb电子有限公司 | Transformer structure |
| JP2012074547A (en) * | 2010-09-29 | 2012-04-12 | Fdk Corp | Insulated transformer |
| US20120106207A1 (en) * | 2009-11-05 | 2012-05-03 | Delta Electronics, Inc. | Resonant transformer and resonant converter employing same |
-
2013
- 2013-05-02 CN CN2013101593743A patent/CN103247429A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007086650A1 (en) * | 2006-01-26 | 2007-08-02 | Dong Bang Electric Ind., Ltd. | Outdoor dry transformer having shield made of high functional fiber |
| CN200959279Y (en) * | 2006-09-22 | 2007-10-10 | 东莞创慈磁性元件有限公司 | High-voltage isolated transformer structure |
| CN101430964A (en) * | 2008-08-21 | 2009-05-13 | 深圳创维－Rgb电子有限公司 | Transformer structure |
| US20120106207A1 (en) * | 2009-11-05 | 2012-05-03 | Delta Electronics, Inc. | Resonant transformer and resonant converter employing same |
| JP2012074547A (en) * | 2010-09-29 | 2012-04-12 | Fdk Corp | Insulated transformer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221418A (en) * | 2015-03-04 | 2017-09-29 | 江苏理工学院 | Switch transformer |
| CN107481838A (en) * | 2015-03-04 | 2017-12-15 | 江苏理工学院 | Switch transformer component and Switching Power Supply with primary coil |
| CN107481838B (en) * | 2015-03-04 | 2020-05-01 | 江苏理工学院 | Switch transformer assembly with primary coil and switch power supply |
| CN110808149A (en) * | 2019-10-11 | 2020-02-18 | 西安交通大学 | Low-leakage-inductance multistage multi-primary-side multi-secondary-side pulse transformer and winding method thereof |
| CN110808149B (en) * | 2019-10-11 | 2022-02-22 | 西安交通大学 | Low-leakage-inductance multistage multi-primary-side multi-secondary-side pulse transformer and winding method thereof |
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Application publication date: 20130814 |
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