CN105405607A - Method for reducing leakage inductance of pin transformer, and transformer and power supply - Google Patents
Method for reducing leakage inductance of pin transformer, and transformer and power supply Download PDFInfo
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- CN105405607A CN105405607A CN201510875238.3A CN201510875238A CN105405607A CN 105405607 A CN105405607 A CN 105405607A CN 201510875238 A CN201510875238 A CN 201510875238A CN 105405607 A CN105405607 A CN 105405607A
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- transformer
- contact pin
- leakage inductance
- pin
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Abstract
The invention discloses a method for reducing leakage inductance of a pin transformer, and a transformer and a power supply. The method comprises the step as follows: when a leading-out terminal of a winding coil of the transformer needs to span a secondary side from a primary side, the leading-out terminal achieves spanning through routing from the bottom of a transformer core. The pin transformer comprises a base and an iron core, wherein the iron core is arranged on the base; a row of primary side pins and a row of secondary side pins are arranged on the base; and at least one first pin of the primary side is connected with at least one second pin of the secondary side through a jumper or a metal foil on a circuit board. The pin transformer is arranged in the power supply. The conventional structure of spanning from the top of the transformer core is changed; transformation of the structure of spanning from the bottom of the transformer core is achieved in a manner of connecting partial primary side pins and partial secondary side pins together; the leakage inductance of the transformer is greatly reduced; the quality of the transformer is improved; the material consumption is reduced; and the cost of the transformer is reduced.
Description
Technical field
The present invention relates to transformer technology field, be specifically related to a kind of reduce pin type transformer leakage inductance method and transformer and power supply.
Background technology
Chinese patent ZL02149696.X discloses " winding method of Transformer for switching power source and coil windings thereof ", the coil that to be wherein the winding method of the coil windings of odd number (2Q+1) for the number of turn be in same position 180 degree of Rotational Symmetry coilings two (Q+0.5) numbers of turn, 0.5 circle is wherein non-integer circle number, namely half-turn, the input terminal of these two coil windings and outlet terminal are then in parallel respectively, form single coil windings.
As shown in Figure 1, the transformer for switching power supply of prior art is pin type transformer, two socket pins are arranged at the bottom of iron core bracket, two socket pins are inserted into when transformer is placed on wiring board in the welding hole of wiring board, wherein a row (the A row in Fig. 1) contact pin is used for the terminal of the coiling of connection transformer primary side, and another row (the B row in Fig. 1) contact pin is used for the terminal of connection transformer secondary side coiling.
Transformer as shown in Figure 2 needs coiling two to be with coiling N2 and N4 of half-turn at secondary side, therefore the leading-out terminal of N2 and N4 must appear at primary side, as shown in Figure 3 and Figure 4, the mode of prior art cabling is that the top making the primary side leading-out terminal of N2 and N4 stride across iron core turns back to secondary side, then the contact pin of connecting secondary side.
This mode from transformer core top cross-line has following defect:
1) add the leakage inductance of transformer, reduce the quality of transformer;
2) add material consumption, be unfavorable for reducing costs.
Summary of the invention
The technical problem to be solved in the present invention is, for the deficiencies in the prior art, there is provided a kind of reduce pin type transformer leakage inductance method and transformer and power supply, overcoming prior art increases transformer leakage inductance from the mode of transformer core top cross-line, increases the defect of material consumption.
The present invention for solving the problems of the technologies described above adopted technical scheme is:
Reduce a method for pin type transformer leakage inductance, comprise step: when the leading-out terminal needs of the coiling of transformer cross secondary side from primary side, described leading-out terminal is by realizing crossing over from the bottom trace of transformer core.
According to embodiments of the invention, described leading-out terminal is connected at least one first contact pin of primary side, and the first contact pin is by being positioned at least one second contact pin of the metal forming connecting secondary side on the wire jumper of transformer bottom or circuit board.
Reduce a method for pin type transformer leakage inductance, comprise step: when the leading-out terminal needs of the coiling of transformer cross primary side from secondary side, described leading-out terminal is by realizing crossing over from the bottom trace of transformer core.
According to embodiments of the invention, described leading-out terminal is connected to the first contact pin of at least one secondary side, and the first contact pin connects at least one second contact pin of primary side by the metal forming be positioned on the wire jumper of transformer bottom or circuit board.
Reduce a method for pin type transformer leakage inductance, comprise step: when the end of incoming cables needs of the coiling of transformer cross secondary side from primary side, described end of incoming cables is by realizing crossing over from the bottom trace of transformer core.
According to embodiments of the invention, described end of incoming cables is connected to the first contact pin of at least one primary side, and the first contact pin is by being positioned at least one second contact pin of the metal forming connecting secondary side on the wire jumper of transformer bottom or circuit board.
Reduce a method for pin type transformer leakage inductance, comprise step: when the end of incoming cables needs of the coiling of transformer cross primary side from secondary side, described end of incoming cables is by realizing crossing over from the bottom trace of transformer core.
According to embodiments of the invention, described end of incoming cables is connected at least one first contact pin of secondary side, and the first contact pin connects at least one second contact pin of primary side by the metal forming be positioned on the wire jumper of transformer bottom or circuit board.
A kind of low leakage inductance pin type transformer, comprise base and be arranged on the iron core on described base, described base is provided with row's primary side contact pin and row's secondary side contact pin, and at least one first contact pin of primary side is connected with at least one second contact pin of secondary side by the metal forming on wire jumper or wiring board.
According to embodiments of the invention, the end of incoming cables or the leading-out terminal that are wound at least one coil on described iron core connect the first contact pin or the second contact pin.
A kind of power supply, is provided with at least one as above arbitrary described low leakage inductance pin type transformer in described power supply.
Implement technical scheme of the present invention, there is following beneficial effect: the present invention changes in the past from the structure of transformer core top cross-line, by the mode that part primary side contact pin and part secondary side contact pin are linked together, realize the Structure innovation of cross-line bottom transformer core, greatly reduce the leakage inductance of transformer, improve the quality of transformer, and decrease material consumption, reduce transformer cost.
Accompanying drawing explanation
Below by with reference to accompanying drawing describe the present invention particularly in conjunction with example, advantage of the present invention and implementation will be more obvious, wherein content shown in accompanying drawing is only for explanation of the present invention, and does not form restriction of going up in all senses of the present invention, in the accompanying drawings:
Fig. 1 is prior art transformer base schematic diagram;
Fig. 2 is prior art is wound with the coiling of two band half-turns transformer circuit schematic diagram at secondary side;
Fig. 3 is prior art is wound with the coiling of two the band half-turns schematic diagram of transformer from iron core top cross-line at secondary side;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is embodiment of the present invention transformer circuit schematic diagram;
Fig. 6 is embodiment of the present invention transformer base schematic diagram;
Fig. 7 is embodiment of the present invention transformer front view;
Fig. 8 is embodiment of the present invention transformer side view;
Fig. 9 is embodiment of the present invention transformer vertical view.
Embodiment
As shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, embodiments of the invention comprise following various execution mode:
(1) leading-out terminal crosses secondary side from primary side
The present invention reduces the method for pin type transformer leakage inductance, comprises step: when the leading-out terminal needs of the coiling of transformer cross secondary side from primary side, and leading-out terminal is by realizing crossing over from the bottom trace of transformer core.Concrete leap mode can be at least one first contact pin that leading-out terminal is connected to primary side, and the first contact pin is by being positioned at least one second contact pin of the metal forming connecting secondary side on the wire jumper of transformer bottom or circuit board.
(2) leading-out terminal crosses primary side from secondary side
The present invention reduces the method for pin type transformer leakage inductance, comprises step: when the leading-out terminal needs of the coiling of transformer cross primary side from secondary side, and leading-out terminal is by realizing crossing over from the bottom trace of transformer core.Concrete leap mode can be the first contact pin that leading-out terminal is connected at least one secondary side, and the first contact pin connects at least one second contact pin of primary side by the metal forming be positioned on the wire jumper of transformer bottom or circuit board.
(3) end of incoming cables crosses secondary side from primary side
The present invention reduces the method for pin type transformer leakage inductance, comprises step: when the end of incoming cables needs of the coiling of transformer cross secondary side from primary side, and end of incoming cables is by realizing crossing over from the bottom trace of transformer core.Concrete leap mode can be the first contact pin that end of incoming cables is connected at least one primary side, and the first contact pin is by being positioned at least one second contact pin of the metal forming connecting secondary side on the wire jumper of transformer bottom or circuit board.
(4) end of incoming cables crosses primary side from secondary side
The present invention reduces the method for pin type transformer leakage inductance, comprises step: when the end of incoming cables needs of the coiling of transformer cross primary side from secondary side, and end of incoming cables is by realizing crossing over from the bottom trace of transformer core.Concrete leap mode can be at least one first contact pin that end of incoming cables is connected to secondary side, and the first contact pin connects at least one second contact pin of primary side by the metal forming be positioned on the wire jumper of transformer bottom or circuit board.
Corresponding to the method for the present invention's low pin type transformer leakage inductance, the present invention's low leakage inductance pin type transformer, comprise base and be arranged on the iron core on described base, base is provided with row's primary side contact pin and row's secondary side contact pin, and at least one first contact pin of primary side is connected with at least one second contact pin of secondary side by the metal forming on wire jumper or wiring board.According to embodiments of the invention, the end of incoming cables or the leading-out terminal that are wound at least one coil on iron core connect the first contact pin or the second contact pin.Metal forming can be Copper Foil or silver foil.
Corresponding to the method for the present invention's low pin type transformer leakage inductance and the present invention's low leakage inductance pin type transformer, be provided with at least one as above arbitrary described low leakage inductance pin type transformer in power supply of the present invention.Be understandable that any one equipment is as being provided with the present invention's low leakage inductance pin type transformer, still falls into protection scope of the present invention.
As shown in Figure 5 and Figure 6, one end connecting contact pin 1 of coiling N2, the Same Name of Ends connecting contact pin 13 of coiling N4 and contact pin 14, in order to be linked together at these two ends, linked together contact pin 1, contact pin 13 and contact pin 14 by the wire jumper below base or the Copper Foil on wiring board 11.The other end connecting contact pin 2 of coiling N2, the Same Name of Ends connecting contact pin 8 of coiling N4 and contact pin 9, in order to be linked together at these two ends, linked together contact pin 2, contact pin 8 and contact pin 9 by the wire jumper below base or the Copper Foil on wiring board 11.
Table 1 is that the transformer from iron core top cross-line is reported with the test comparison from the transformer leakage inductance of transformer bottom cross-line, therefrom can find out that the present invention greatly reduces transformer leakage inductance from the transformer of transformer bottom cross-line, achieve good technique effect.
Table 1
Those skilled in the art do not depart from essence of the present invention and spirit, various deformation scheme can be had to realize the present invention, the foregoing is only the better feasible embodiment of the present invention, not thereby interest field of the present invention is limited to, the equivalent structure change that all utilizations specification of the present invention and accompanying drawing content are done, is all contained within interest field of the present invention.
Claims (11)
1. reduce a method for pin type transformer leakage inductance, it is characterized in that, comprise step: when the leading-out terminal needs of the coiling of transformer cross secondary side from primary side, described leading-out terminal is by realizing crossing over from the bottom trace of transformer core.
2. the method for reduction pin type transformer leakage inductance according to claim 1, it is characterized in that: described leading-out terminal is connected at least one first contact pin of primary side, the first contact pin is by being positioned at least one second contact pin of the metal forming connecting secondary side on the wire jumper of transformer bottom or circuit board.
3. reduce a method for pin type transformer leakage inductance, it is characterized in that, comprise step: when the leading-out terminal needs of the coiling of transformer cross primary side from secondary side, described leading-out terminal is by realizing crossing over from the bottom trace of transformer core.
4. the method for reduction pin type transformer leakage inductance according to claim 3, it is characterized in that: described leading-out terminal is connected to the first contact pin of at least one secondary side, the first contact pin connects at least one second contact pin of primary side by the metal forming be positioned on the wire jumper of transformer bottom or circuit board.
5. reduce a method for pin type transformer leakage inductance, it is characterized in that, comprise step: when the end of incoming cables needs of the coiling of transformer cross secondary side from primary side, described end of incoming cables is by realizing crossing over from the bottom trace of transformer core.
6. the method for reduction pin type transformer leakage inductance according to claim 5, it is characterized in that: described end of incoming cables is connected to the first contact pin of at least one primary side, the first contact pin is by being positioned at least one second contact pin of the metal forming connecting secondary side on the wire jumper of transformer bottom or circuit board.
7. reduce a method for pin type transformer leakage inductance, it is characterized in that, comprise step: when the end of incoming cables needs of the coiling of transformer cross primary side from secondary side, described end of incoming cables is by realizing crossing over from the bottom trace of transformer core.
8. the method for reduction pin type transformer leakage inductance according to claim 7, it is characterized in that: described end of incoming cables is connected at least one first contact pin of secondary side, the first contact pin connects at least one second contact pin of primary side by the metal forming be positioned on the wire jumper of transformer bottom or circuit board.
9. one kind low leakage inductance pin type transformer, it is characterized in that: comprise base and be arranged on the iron core on described base, described base is provided with row's primary side contact pin and row's secondary side contact pin, and at least one first contact pin of primary side is connected with at least one second contact pin of secondary side by the metal forming on wire jumper or wiring board.
10. low leakage inductance pin type transformer according to claim 9, is characterized in that: the end of incoming cables or the leading-out terminal that are wound at least one coil on described iron core connect the first contact pin or the second contact pin.
11. 1 kinds of power supplys, is characterized in that: be provided with in described power supply at least one as arbitrary in claim 9 to 10 as described in low leakage inductance pin type transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875238.3A CN105405607B (en) | 2015-12-03 | 2015-12-03 | A kind of method and transformer and power supply for reducing pin type transformer leakage inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875238.3A CN105405607B (en) | 2015-12-03 | 2015-12-03 | A kind of method and transformer and power supply for reducing pin type transformer leakage inductance |
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| CN105405607A true CN105405607A (en) | 2016-03-16 |
| CN105405607B CN105405607B (en) | 2018-01-02 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3445213B2 (en) * | 2000-02-16 | 2003-09-08 | 株式会社タムラ製作所 | Power transformer |
| CN201489973U (en) * | 2009-09-08 | 2010-05-26 | 快特电波股份有限公司 | High-frequency magnetic element and bobbin bracket thereof |
| CN102779627A (en) * | 2012-07-30 | 2012-11-14 | 昆山达功电子有限公司 | Induction coil winding structure |
| CN203826180U (en) * | 2014-05-19 | 2014-09-10 | 东莞市嘉龙海杰电子科技有限公司 | Winding structure for primary winding of transformer |
| CN205194486U (en) * | 2015-12-03 | 2016-04-27 | 刘国泉 | Low leakage inductance transformer and power |
-
2015
- 2015-12-03 CN CN201510875238.3A patent/CN105405607B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3445213B2 (en) * | 2000-02-16 | 2003-09-08 | 株式会社タムラ製作所 | Power transformer |
| CN201489973U (en) * | 2009-09-08 | 2010-05-26 | 快特电波股份有限公司 | High-frequency magnetic element and bobbin bracket thereof |
| CN102779627A (en) * | 2012-07-30 | 2012-11-14 | 昆山达功电子有限公司 | Induction coil winding structure |
| CN203826180U (en) * | 2014-05-19 | 2014-09-10 | 东莞市嘉龙海杰电子科技有限公司 | Winding structure for primary winding of transformer |
| CN205194486U (en) * | 2015-12-03 | 2016-04-27 | 刘国泉 | Low leakage inductance transformer and power |
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| CN105405607B (en) | 2018-01-02 |
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Address after: Room 1108, block A, Xinghe residence, Diamond Mountain, Kowloon, Hongkong, China Patentee after: Liu Guoquan Address before: Room 1108, block A, Xinghe residence, Diamond Mountain, Kowloon, Hongkong, China Patentee before: Liu Guoquan |
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