CN105529152B - A kind of method for reducing pin type transformer leakage inductance - Google Patents
A kind of method for reducing pin type transformer leakage inductance Download PDFInfo
- Publication number
- CN105529152B CN105529152B CN201610044865.7A CN201610044865A CN105529152B CN 105529152 B CN105529152 B CN 105529152B CN 201610044865 A CN201610044865 A CN 201610044865A CN 105529152 B CN105529152 B CN 105529152B
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- CN
- China
- Prior art keywords
- transformer
- contact pin
- leakage inductance
- side contact
- wire jumper
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/346—Preventing or reducing leakage fields
Abstract
The invention discloses a kind of method for reducing pin type transformer leakage inductance, including step：The periphery for installing transformer base position on circuit boards is provided for connecting the wire jumper or metal foil of primary side contact pin and secondary side contact pin, when the leading-out terminal of the coiling of transformer needs to cross opposite side from the side of transformer, the leading-out terminal is realized by the wire jumper or the metal foil and crossed over.The present invention is changed in the past from the structure of cross-line at the top of transformer core, by way of part primary side contact pin and part secondary side contact pin are linked together from the periphery of transformer base, realize the Structure innovation of transformer cross-line, greatly reduce the leakage inductance of transformer, improve the quality of transformer, and reduce material consumption, reduce transformer cost.
Description
Technical field
The present invention relates to transformer technology field, and in particular to a kind of method for reducing pin type transformer leakage inductance.
Background technology
Chinese patent ZL02149696.X discloses " the coiling side of Transformer for switching power source and its coil windings
Method ", wherein the winding method for the coil windings that the number of turn is odd number (2Q+1) is in same position 180 degree rotational symmetry coiling
The coil of two (Q+0.5) numbers of turn, 0.5 circle therein is non-integer circle number, that is, half-turn, the end of incoming cables of the two coil windings
Son and outlet terminal and then respectively parallel connection, form single coil windings.
As shown in figure 1, the transformer for switching power supply of prior art is pin type transformer, the bottom of iron core bracket has two
Socket pin, two socket pins are inserted into the welding hole of wiring board when transformer is placed on wiring board, wherein a row (A in Fig. 1
Row) contact pin is used for the terminal that connects the coiling of transformer primary side, and another row (the B rows in Fig. 1) contact pin, which is used to connect, to be become
The terminal of depressor secondary side coiling.
Transformer as shown in Figure 2 needs coiling N2 and N4 of the coiling two with half-turn in secondary side, thus N2 and
N4 leading-out terminal necessarily occurs at primary side, and as shown in Figure 3 and Figure 4, the mode of prior art cabling is to make N2 and N4 once
Side leading-out terminal reconnects the contact pin of secondary side across secondary side is returned at the top of iron core.
This mode from cross-line at the top of transformer core has following defect：
1) leakage inductance of transformer is added, reduces the quality of transformer；
2) material consumption is added, is unfavorable for reducing cost.
The content of the invention
The technical problem to be solved in the present invention is, in view of the shortcomings of the prior art, there is provided one kind reduces pin type transformation
The method of device leakage inductance, prior art is overcome from the mode of cross-line at the top of transformer core increases transformer leakage inductance, increase material disappears
The defects of consumption.
The present invention is that technical scheme is used by solving above-mentioned technical problem：
A kind of method for reducing pin type transformer leakage inductance, including step：Transformer base position is installed on circuit boards
Periphery be provided for connecting the wire jumper or metal foil of primary side contact pin and secondary side contact pin, the coiling of transformer goes out
When line end needs to cross opposite side from the side of transformer, the leading-out terminal is realized by the wire jumper or the metal foil
Across.
A kind of method for reducing pin type transformer leakage inductance, including step：Transformer base position is installed on circuit boards
Periphery be provided for connecting the wire jumper or metal foil of primary side contact pin and secondary side contact pin, the coiling of transformer enters
When line end needs to cross opposite side from the side of transformer, the end of incoming cables is realized by the wire jumper or the metal foil
Across.
Implement technical scheme, have the advantages that：The present invention is changed in the past from transformer core top
The structure of portion's cross-line, by the way that part primary side contact pin and part secondary side contact pin link together from the periphery of transformer base
Mode, realize the Structure innovation of transformer cross-line, greatly reduce the leakage inductance of transformer, improve the quality of transformer, and
And reduce material consumption, reduce transformer cost.
Brief description of the drawings
The present invention is specifically described below with reference to accompanying drawing and with reference to example, advantages of the present invention and implementation will
More obvious, wherein content is only used for explanation of the present invention shown in accompanying drawing, without forming to the present invention in all senses
On limitation, in the accompanying drawings：
Fig. 1 is prior art transformer base schematic diagram；
Fig. 2 is the transformer circuit schematic diagram that prior art is wound with two coilings with half-turn in secondary side；
Fig. 3 is that prior art is wound with the transformers of two coilings with the half-turn cross-line at the top of iron core in secondary side
Schematic diagram；
Fig. 4 is Fig. 3 top view；
Fig. 5 is transformer circuit schematic diagram of the embodiment of the present invention；
Fig. 6 is transformer base schematic diagram of the embodiment of the present invention；
Fig. 7 is transformer front view of the embodiment of the present invention；
Fig. 8 is transformer side view of the embodiment of the present invention；
Fig. 9 is transformer top view of the embodiment of the present invention.
Embodiment
As shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, embodiments of the invention include following various embodiments：
(1) leading-out terminal crosses secondary side from primary side
The method that the present invention reduces pin type transformer leakage inductance, including step：Transformer base position is installed on circuit boards
The periphery put is provided for connecting the wire jumper or metal foil of primary side contact pin and secondary side contact pin, the coiling of transformer
When leading-out terminal needs to cross opposite side from transformer side, the leading-out terminal is realized by the wire jumper or the metal foil
Across.
(2) leading-out terminal crosses primary side from secondary side
The method that the present invention reduces pin type transformer leakage inductance, including step：Transformer base position is installed on circuit boards
The periphery put is provided for connecting the wire jumper or metal foil of primary side contact pin and secondary side contact pin, the coiling of transformer
When leading-out terminal needs the transformer side where crossing primary side from the transformer side where secondary side, the leading-out terminal leads to
Cross the wire jumper or the metal foil is realized and crossed over.
(3) end of incoming cables crosses secondary side from primary side
The method that the present invention reduces pin type transformer leakage inductance, including step：Transformer base position is installed on circuit boards
The periphery put is provided for connecting the wire jumper or metal foil of primary side contact pin and secondary side contact pin, the coiling of transformer
When end of incoming cables needs to cross opposite side from transformer side, the end of incoming cables is realized by the wire jumper or the metal foil
Across.
(4) end of incoming cables crosses primary side from secondary side
The method that the present invention reduces pin type transformer leakage inductance, including step：Transformer base position is installed on circuit boards
The periphery put is provided for connecting the wire jumper or metal foil of primary side contact pin and secondary side contact pin, the coiling of transformer
When end of incoming cables needs the transformer side where crossing primary side from the transformer side where secondary side, the end of incoming cables leads to
Cross the wire jumper or the metal foil is realized and crossed over.
As shown in Figure 5 and Figure 6, coiling N2 one end connecting contact pin 1, coiling N4 Same Name of Ends connecting contact pin 13
With contact pin 14, in order to which the both ends are linked together, what the periphery by installing transformer base position on circuit boards was set
Copper foil 11 on wire jumper or wiring board links together contact pin 1, contact pin 13 and contact pin 14.The coiling N2 other end connects
Patch pin 2, coiling N4 Same Name of Ends connecting contact pin 8 and contact pin 9, in order to which the both ends are linked together, by circuit
Contact pin 2, contact pin 8 and contact pin 9 are connected to one by the wire jumper or copper foil 11 that the periphery setting of transformer base position is installed on plate
Rise.
Those skilled in the art do not depart from the essence and spirit of the present invention, can have various deformation scheme to realize the present invention,
Preferably feasible embodiment of the invention is the foregoing is only, not thereby limits to the interest field of the present invention, it is all with this
The equivalent structure change that description of the invention and accompanying drawing content are made, is both contained within the interest field of the present invention.
Claims (2)
- A kind of 1. method for reducing pin type transformer leakage inductance, it is characterised in that including step：Transformer is installed on circuit boards The periphery of position base is provided for connecting the wire jumper or metal foil of primary side contact pin and secondary side contact pin, the coiling of transformer When the leading-out terminal of coil needs to cross opposite side from the side of transformer, the leading-out terminal passes through the wire jumper or the gold Belong to paper tinsel and realize leap.
- A kind of 2. method for reducing pin type transformer leakage inductance, it is characterised in that including step：Transformer is installed on circuit boards The periphery of position base is provided for connecting the wire jumper or metal foil of primary side contact pin and secondary side contact pin, the coiling of transformer When the end of incoming cables of coil needs to cross opposite side from the side of transformer, the end of incoming cables passes through the wire jumper or the gold Belong to paper tinsel and realize leap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610044865.7A CN105529152B (en) | 2016-01-22 | 2016-01-22 | A kind of method for reducing pin type transformer leakage inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610044865.7A CN105529152B (en) | 2016-01-22 | 2016-01-22 | A kind of method for reducing pin type transformer leakage inductance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105529152A CN105529152A (en) | 2016-04-27 |
| CN105529152B true CN105529152B (en) | 2018-01-02 |
Family
ID=55771315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610044865.7A Active CN105529152B (en) | 2016-01-22 | 2016-01-22 | A kind of method for reducing pin type transformer leakage inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105529152B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000173694A (en) * | 1998-12-03 | 2000-06-23 | Kawamura Electric Inc | Terminal block |
| CN201984924U (en) * | 2011-01-29 | 2011-09-21 | 广州凯盛电子科技有限公司 | Non-full-circle winding high-frequency transformer |
| CN102403120A (en) * | 2011-10-31 | 2012-04-04 | 深圳市大富科技股份有限公司 | Transformer and winding method of transformer |
| JP6120623B2 (en) * | 2013-03-15 | 2017-04-26 | オムロンオートモーティブエレクトロニクス株式会社 | Magnetic device |
| CN203858962U (en) * | 2014-04-29 | 2014-10-01 | 深圳市福瑞康电子有限公司 | Transformer framework |
-
2016
- 2016-01-22 CN CN201610044865.7A patent/CN105529152B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105529152A (en) | 2016-04-27 |
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