CN101651031B - Combined structure of transformer, system circuit board and auxiliary circuit board - Google Patents
Combined structure of transformer, system circuit board and auxiliary circuit board Download PDFInfo
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- CN101651031B CN101651031B CN2008102106217A CN200810210621A CN101651031B CN 101651031 B CN101651031 B CN 101651031B CN 2008102106217 A CN2008102106217 A CN 2008102106217A CN 200810210621 A CN200810210621 A CN 200810210621A CN 101651031 B CN101651031 B CN 101651031B
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Abstract
The invention relates to a combined structure of a transformer, a system circuit board and an auxiliary circuit board, comprising the transformer, the system circuit board and the auxiliary circuit board, wherein, the transformer is provided with a primary coiling, a secondary winding and a magnetic core group which is sleeved in part of the primary coiling and the secondary winding, and the secondary winding comprises a plurality of output ends; the system circuit board is connected with the primary coiling; and the auxiliary circuit board is connected with the system circuit board and is provided with a plurality of insertion parts for being connected with a plurality of output ends of the secondary winding. In the combined structure of the invention, a rectifier is arranged on the auxiliary circuit board which is vertically arranged on the system circuit board, which ensures the output end of the secondary winding can be directly inserted on the insertion part of the auxiliary circuit board in a clamping manner, with no need of solder connection, and ensures the distance between the output end of the conductive structure of the transformer and the rectifier to be shortened, thereby decreasing the loss at the output end of the conductive structure, reducing output leakage inductance and enhancing heat dissipation effect.
Description
Technical field
The present invention relates to a kind of combining structure, refer to the integrated structure of a kind of transformer and system circuit board and auxiliary circuit board especially.
Background technology
Under energy situation in short supply day by day, how to improve more and more important that the operational efficiency of the power supply unit of electric equipment becomes, wherein power supply unit mainly is made up of the conductor of switch element, magnetic element, electric capacity and various different resistance values.Magnetic element, for example: transformer, be the core parts that power transmits in the power supply unit, it utilizes electric energy, magnetic energy transformation induction principle to adjust voltage, nearly all electric current and voltage is regulated and all will be realized by magnetic element, and main power also is to transmit via magnetic element, and the loss that therefore how to reduce magnetic element is the important means that improves the power supply unit operational efficiency.The leading-out terminal loss (terminal loss) that welding and cabling formed when wherein the loss of magnetic element comprised loss on core loss, the coil and finish lead and is connected with other conductor.
See also Fig. 1, it is arranged at the structural representation of system circuit board for existing transformer and rectifier, as shown in the figure, existing transformer 10 is arranged at respectively on the system circuit board 1 with rectifier 14, wherein the leading-out terminal 111 of the secondary coil 11 of transformer 10 is connected with the pin 12 of penetrating system circuit board 1 by scolder 13, and the layout circuit (trace by system circuit board 1, figure does not show) be connected to the rectifier 14 that is arranged at system circuit board 1 edge, be sent to rectifier 14 in order to the voltage of transformer 10 being responded to generation and carry out rectifying and wave-filtering, and direct voltage is outputed to load.
Though structure shown in Figure 1 can reach the effect that output DC is depressed into load really, but use scolder 13 to be connected between the leading-out terminal 111 of secondary coil 11 and the pin 12, well known, the higher loss that can increase transformer 10 power outputs of the resistivity of scolder 13, in addition, owing to must be connected by the layout circuit of system circuit board 1 between transformer 10 and the rectifier 14, therefore the layout circuit that must flow through on pin 12 and the system circuit board 1 of the output current of transformer 10 could arrive rectifier 14, add, rectifier 14 is arranged at the edge of system circuit board 1, the path of layout circuit is longer, and therefore structure shown in Figure 1 not only can cause bigger conduction loss can make that also leakage inductance is bigger.
Therefore, how to develop a kind of transformer of above-mentioned prior art defective and integrated structure of system circuit board and auxiliary circuit board of improving, real in pressing for the problem of solution at present.
Summary of the invention
Main purpose of the present invention is to provide the integrated structure of a kind of transformer and system circuit board and auxiliary circuit board, use scolder to be connected with between the leading-out terminal of the secondary coil that solves existing transformer and pin, and must be connected by the layout circuit of system circuit board between transformer and the rectifier, and rectifier is arranged at the edge of system circuit board, the path of layout circuit is longer, the shortcomings such as bigger conduction loss and leakage inductance that cause.
For reaching above-mentioned purpose, of the present invention one than the broad sense example for a kind of integrated structure is provided, it comprises: transformer, it has main coiling, secondary winding, magnetic core set, magnetic core set is sheathed in coiling of part main and the secondary winding, and secondary winding comprises a plurality of outputs; System circuit board, it is connected with the main coiling; And auxiliary circuit board, it is connected with system circuit board, and has a plurality of Plug Divisions, in order to be connected with a plurality of outputs of secondary winding.
According to conception of the present invention, wherein transformer also comprises winding base, and this pedestal has one and runs through the penetrating via of body, and body twines for the main coiling.
According to conception of the present invention, wherein secondary winding is a conductive structure, and it comprises a plurality of conductive units, a plurality of conductive units correspond to each other, each conductive unit has hollow bore and a plurality of output, and hollow bore is corresponding mutually with the penetrating via of winding base, with ccontaining part iron core group.
According to conception of the present invention, wherein the body of winding base has a plurality of holding parts, in order to a plurality of conductive units to be set.
According to conception of the present invention, wherein secondary winding is a winding structure.
According to conception of the present invention, wherein auxiliary circuit board is vertically installed on the system circuit board.
According to conception of the present invention, wherein also include rectifier, drive circuit and guiding access on the auxiliary circuit board, auxiliary circuit board is connected with this system circuit board by guiding access.
According to conception of the present invention, wherein the Plug Division of auxiliary circuit board is a slotted eye, in order to a plurality of outputs of grafting secondary winding.
According to conception of the present invention, wherein the distance between auxiliary circuit board and the transformer is smaller or equal to the length of output.
According to conception of the present invention, wherein magnetic core set has the first magnetic core portion and the second magnetic core portion, and the length of output is in fact less than the distance between the 3 times of first magnetic core portion and the second magnetic core portion.
Useful technique effect of the present invention is, the integrated structure of transformer of the present invention and system circuit board and auxiliary circuit board is arranged at rectifier on the auxiliary circuit board and auxiliary circuit board is vertically installed in system circuit board, make the output of secondary winding can directly be plugged on the Plug Division of auxiliary circuit board, need not use scolder to connect, and the output of conductive structure of transformer and the distance between the rectifier are shortened, can reduce conductive structure output loss and reduce to export leakage inductance, and increase radiating effect.
Description of drawings
Fig. 1: it is arranged at the structural representation of system circuit board for existing transformer and rectifier.
Fig. 2: it is the decomposition texture schematic diagram of the transformer of preferred embodiment of the present invention.
Fig. 3: it is the structural representation of the auxiliary circuit board of preferred embodiment of the present invention.
Fig. 4: it is the integrated structure schematic diagram of transformer shown in Figure 2 and system circuit board and auxiliary circuit board shown in Figure 3.
Fig. 5: it is the decomposition texture schematic diagram of the transformer of another preferred embodiment of the present invention.
Fig. 6: it is the integrated structure schematic diagram of transformer shown in Figure 5 and system circuit board and auxiliary circuit board shown in Figure 3.
Wherein, description of reference numerals is as follows:
System circuit board: 1,4 transformers: 10,2,2 '
Secondary coil: 11 leading-out terminals: 111
Pin: 12 scolders: 13
Rectifier: 14 winding base: 21
Body: 210 winding slots: 211
Storage tank: 212 penetrating vias: 213
Magnetic core set: 22 first magnetic core portions: 220
The second magnetic core portion: 221 mains coiling: 23,25
Conductive structure: 24 conductive units: 241
Hollow bore: 242,252 outputs: 243
Auxiliary circuit board: 3 rectifiers: 31
Drive circuit: 32 guiding access: 33
Perforation: 331 Plug Divisions: 34
Conduction runs through through hole: 35 leads: 251
Embodiment
Some exemplary embodiments that embody feature of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations different in form, its neither departing from the scope of the present invention, and explanation wherein and the accompanying drawing usefulness that ought explain in itself, but not in order to restriction the present invention.
See also Fig. 2, it is the decomposition texture schematic diagram of the transformer of preferred embodiment of the present invention, as shown in the figure, the transformer 2 of present embodiment can comprise winding base 21, magnetic core set 22, main coiling 23 and secondary winding, winding base 21 comprises a body 210, body 210 can be the cylinder-like structure with the plastics ejection formation, but its shape there is no limit, also can be rectangle or polygon tubular structure, and have at least one winding slot 211 and at least one storage tank 212 on the body 210 of winding base 21, in present embodiment, body 210 is provided with a winding slot 211 and two storage tanks 212, storage tank 212 then is arranged at the both sides of winding slot 211, and winding slot 211 and storage tank 212 are arranged parallel to each other and are arranged on the body 210, and the number of winding slot 211 and storage tank 212 there is no limit visual demand and being adjusted.The winding slot 211 of body 210 is mainly used for main coiling 23 and is twined, and is connected in system circuit board 4 (as shown in Figure 4) and receives input voltage with the leading-out terminal that utilizes main coiling 23; 212 secondary winding of storage tank in order to ccontaining generation induced voltage, in present embodiment, secondary winding can be a conductive structure 24, and this conductive structure 24 can be made of a plurality of conductive unit 241, and conductive unit 241 can corresponding storage tank 212 and is arranged in the storage tank 212.In addition, winding base 21 also has consistent break-through road 213, and it axially runs through body 210 and is connected with storage tank 212, and with the magnetic core set 22 of holding portion, in present embodiment, penetrating via 213 can be circular channel, but not as limit.
Please consult Fig. 2 again, magnetic core set 22 has the first magnetic core portion 220 and the second magnetic core portion 221, in present embodiment, magnetic core set 22 can be EE type iron core group, its second magnetic core portion 221 can be cylindric, and diameter roughly conforms to the diameter of the penetrating via 213 of the body 210 that runs through winding base 21, and the second magnetic core portion 221 of magnetic core set 22 is contained in the penetrating via 213 of winding base 21.Certainly, in some embodiment, the also visual user's demand of magnetic core set 22 and replace with the magnetic core set of EI magnetic core set or other kind, in other words, all any magnetic core set 22 of winding base 21 that cooperates are all applicable to the present invention.
Please consult Fig. 2 again, conductive structure 24 comprises a plurality of conductive units 241, each conductive unit 241 can be but not be limited to by a plurality of conducting strips and at least one insulating trip and constituted, and insulating trip is coated on (figure does not show) on the partially conductive sheet, and each conductive unit 241 has hollow bore 242 and a plurality of output 243, and a plurality of outputs 243 separate setting each other, wherein the length of output 243 is directly proportional with first magnetic core portion 220 of magnetic core set 22 and the distance W between the second magnetic core portion 221, in some embodiment, the length of output 243 in fact can be less than the distance W between the 3 times of first magnetic core portion 220 and the second magnetic core portion 221.
When transformer 2 is assembled, need earlier main coiling 23 to be wound in the winding slot 211 of body 210 of winding base 21, and the conductive unit 241 of conductive structure 24 is when desiring with winding base 21 assemblings, with two relatively the conductive unit 241 in the outside be arranged in the storage tank 212 of opposite flank of body 210 of winding base 21, make conductive unit 241 pass through body 210 intervals (as shown in Figure 4) of winding base 21 to each other, and the hollow bore 242 of each conductive unit 241 is alignd with the penetrating via 213 of winding base 21, because the diameter of penetrating via 213 equals the diameter of hollow bore 242 in fact and roughly conforms to the diameter of the second magnetic core portion 221 of magnetic core set 22, therefore magnetic core set 22 can utilize the second magnetic core portion 221 to run through the penetrating via 213 of the hollow bore 242 of conductive unit 241 and winding base 21 and be placed in wherein, and the combining structure of conductive unit 241 and winding base 21 is located between the first magnetic core portion 220 of magnetic core set 22, thereby with winding base 21, the conductive unit 241 of magnetic core set 22 and conductive structure 24 is assembled into a transformer 2 (as shown in Figure 4), produce induced voltage in order to conductive structure 24 that makes transformer 2 with the electromagnetic induction effect and main coiling 23, and then the function of performance transformer changing voltage.In the foregoing description, when magnetic core set 22, winding base 21 and a plurality of conductive unit 241 are combined into transformer 2, for example can utilize insulating tape (figure does not show) to be wound in the outside of transformer 2, and magnetic core set 22, winding base 21 and a plurality of conductive structure 24 closely are connected and fixed each other.
See also Fig. 3, it is the structural representation of the auxiliary circuit board of preferred embodiment of the present invention, as shown in the figure, auxiliary circuit board 3 of the present invention can be but not be limited to the circuit board of a sandwich construction, therefore electronic component can all be set on the tow sides of circuit board, in present embodiment, auxiliary circuit board 3 is provided with rectifier 31, drive circuit 32, guiding access 33 and Plug Division 34, as for, set electronic component is not limited to rectifier 31 and drive circuit 32 on the auxiliary circuit board 3, and rectifier 31, this does not exceed the quantity of drive circuit 32 and guiding access 33, and it can be configured according to the actual motion demand.Wherein, the quantity of Plug Division 34 is corresponding to the quantity of a plurality of outputs 243 of conductive unit 241, in some embodiment, Plug Division 34 can be the slotted hole structure that runs through auxiliary circuit board 3 positive and negatives, described a plurality of outputs 243 of the conductive unit 241 of the conductive structure 24 that is mainly used to peg graft.
Please consult Fig. 3 again, in some embodiment, a plurality of conductions also can be set on the auxiliary circuit board 3 run through through hole 35, be used to transmit electric current between the different aspects of auxiliary circuit board 3.
See also Fig. 4 and cooperate Fig. 2, Fig. 3, wherein Fig. 4 is the integrated structure schematic diagram of transformer shown in Figure 2 and system circuit board and auxiliary circuit board shown in Figure 3, as shown in the figure, transformer 2 with the annexation of system circuit board 4 and auxiliary circuit board 3 is: the output 243 of a plurality of conductive units 241 of transformer 2 is plugged in earlier on the Plug Division 34 of pairing auxiliary circuit board 3, so that transformer 2 directly is connected with the rectifier 31 that is arranged at auxiliary circuit board 3, and the distance between auxiliary circuit board 3 and the transformer 2 is less than or equal to the length of output 243, then, the guiding access 33 of auxiliary circuit board 3 is vertically installed on the system circuit board 4, the leading-out terminal of main coiling 23 then is connected in system circuit board 4 and receives input voltage (figure does not show), can reach the rectifier 31 that the voltage that transformer 2 is responded to produce directly is sent to auxiliary circuit board 3 and carry out rectifying and wave-filtering, because the present invention is arranged at rectifier 31 on the auxiliary circuit board 3 and auxiliary circuit board 3 is vertically installed in system circuit board 4, therefore the output 243 of conductive unit 241 can directly be plugged on the Plug Division 34 of auxiliary circuit board 3, need not use scolder to connect, and because the distance between auxiliary circuit board 3 and the transformer 2 is less than or equal to the length of output 243, the output 243 of conductive unit 241 that can make transformer 2 to the conduction between the auxiliary circuit board 3 apart from shortening, and then reduce conductive unit 241 output 243 loss and reduce to export leakage inductance, in addition, owing to transmit big electric current between the Plug Division 34 of auxiliary circuit board 3 and the rectifier 31, large-area printed conductor (figure does not show) therefore is set on the auxiliary circuit board 3, and large-area printed conductor has stronger heat-sinking capability, therefore the printed conductor on the auxiliary circuit board 3 of the present invention more can increase heat radiation function except can transmitting big electric current.
See also Fig. 5, it is the decomposition texture schematic diagram of the transformer of another preferred embodiment of the present invention, as shown in the figure, the transformer 2 ' of present embodiment comprises magnetic core set 22, main coiling 25 and secondary winding, wherein magnetic core set 22 has the first magnetic core portion 220 and the second magnetic core portion 221, secondary winding is a conductive structure 24, and this conductive structure 24 can be made of a plurality of conductive unit 241, and each conductive unit 241 has hollow bore 242 and a plurality of output 243, a plurality of outputs 243 separate setting each other, and the length of output 243 is directly proportional with first magnetic core portion 220 of magnetic core set 22 and the distance W between the second magnetic core portion 221, in some embodiment, the length of output 243 in fact can be less than the distance W between the 3 times of first magnetic core portion 220 and the second magnetic core portion 221.
Can be the line cake that is wound in lead 251 as for main coiling 25, the profile of line cake roughly conforms to conductive unit 241 external forms of conductive structure 24, in other words, the main coiling 25 in the present embodiment can be circular line cake in fact, and central authorities have a hollow bore 252.
When transformer 2 ' is assembled, need a plurality of conductive units 241 are arranged at the dual-side of main coiling 25, so that the hollow bore 252 of main coiling 25 is corresponding mutually with the hollow bore 242 of each conductive unit 241, and the second magnetic core portion 221 of magnetic core set 22 passed hollow bore 242,252 to be sheathed in conductive structure 24 and the main coiling 25, and with the first magnetic core portion, 220 coated with conductive structures 24 and main coiling 25, thereby constitute a transformer 2 ' (as shown in Figure 6), produce induced voltage in order to conductive structure 24 that makes transformer 2 ' with the electromagnetic induction effect and main coiling 25, and then the function of performance transformer changing voltage.In the foregoing description, when the coiling 25 of magnetic core set 22, main and a plurality of conductive unit 241 are combined into transformer 2 ', can utilize insulating tape for example (figure does not show) to be wound in the outside of transformer 2 ', and magnetic core set 22, main coiling 25 and conductive structure 24 closely are connected and fixed each other.
See also Fig. 6 and cooperate Fig. 5, wherein Fig. 6 is the integrated structure schematic diagram of transformer shown in Figure 5 and system circuit board and auxiliary circuit board shown in Figure 3, wherein, the structure of auxiliary circuit board 3 sees also Fig. 3, as for, transformer 2 ' with the annexation of system circuit board 4 and auxiliary circuit board 3 is: the output 243 of a plurality of conductive units 241 of transformer 2 ' is plugged in earlier on the Plug Division 34 of pairing auxiliary circuit board 3 (as shown in Figure 3), so that transformer 2 ' directly is connected with the rectifier 31 that is arranged at auxiliary circuit board 3, and the distance between auxiliary circuit board 3 and the transformer 2 ' is less than or equal to the length of output 243, then, the guiding access 33 of auxiliary circuit board 3 is vertically installed on the system circuit board 4, the leading-out terminal of main coiling 25 (figure does not show) then is connected in system circuit board 4 and receives input voltage, the rectifier 31 that the voltage that can make transformer 2 ' respond to generation directly is sent to auxiliary circuit board 3 carries out rectifying and wave-filtering, because the present invention is arranged at rectifier 31 on the auxiliary circuit board 3 and auxiliary circuit board 3 is vertically installed in system circuit board 4, therefore the output 243 of conductive unit 241 can directly be plugged on the Plug Division 34 of auxiliary circuit board 3, need not use scolder to connect, and because the distance between auxiliary circuit board 3 and the transformer 2 ' is less than or equal to the length of output 243, the output 243 of conductive unit 241 that can make transformer 2 ' to the conduction between the auxiliary circuit board 3 apart from shortening, and then reduce conductive unit 241 output 243 loss and reduce to export leakage inductance, in addition, owing to transmit big electric current between the Plug Division 34 of auxiliary circuit board 3 and the rectifier 31, large-area printed conductor (figure does not show) therefore is set on the auxiliary circuit board 3, and large-area printed conductor has stronger heat-sinking capability, therefore the printed conductor on the auxiliary circuit board 3 of the present invention more can increase heat radiation function except can transmitting big electric current.
In sum, the integrated structure of transformer of the present invention and system circuit board and auxiliary circuit board is arranged at rectifier on the auxiliary circuit board and auxiliary circuit board is vertically installed in system circuit board, make the output of secondary winding can directly be plugged on the Plug Division of auxiliary circuit board, need not use scolder to connect, and the output of conductive structure of transformer and the distance between the rectifier are shortened, can reduce conductive structure output loss and reduce to export leakage inductance, and increase radiating effect.
The present invention can be thought deeply arbitrarily and modified by the person skilled in the art, and the scope of neither disengaging appended claims institute desire protection.
Claims (10)
1. the integrated structure of a transformer and system circuit board and auxiliary circuit board, it comprises:
One transformer, it has main coiling, level winding, a magnetic core set, and this magnetic core set is sheathed in this main coiling of part and this secondary winding, and this secondary winding comprises a plurality of outputs;
One system circuit board, it is connected with this main coiling; And
One auxiliary circuit board, it is connected with this system circuit board, and has a plurality of Plug Divisions, in order to be connected with described a plurality of outputs of this secondary winding.
2. integrated structure as claimed in claim 1, wherein this transformer also comprises a winding base, and this winding base has a body and runs through the consistent break-through road of this body, and this body twines for this main coiling.
3. integrated structure as claimed in claim 2, wherein this secondary winding is a conductive structure, it comprises a plurality of conductive units, described a plurality of conductive unit corresponds to each other, each conductive unit has a hollow bore and described a plurality of output, this hollow bore is corresponding mutually with this penetrating via of this winding base, with this iron core group of ccontaining part.
4. integrated structure as claimed in claim 3, wherein this body of this winding base has a plurality of holding parts, in order to described a plurality of conductive unit to be set.
5. integrated structure as claimed in claim 1, wherein this main coiling is a line cake structure.
6. integrated structure as claimed in claim 1, wherein this auxiliary circuit board is vertically installed on this system circuit board.
7. integrated structure as claimed in claim 1 wherein also includes rectifier, drive circuit and a guiding access on this auxiliary circuit board, this auxiliary circuit board is connected with this system circuit board by this guiding access.
8. integrated structure as claimed in claim 1, wherein this Plug Division of this auxiliary circuit board is a slotted eye, in order to described a plurality of outputs of this secondary winding of pegging graft.
9. integrated structure as claimed in claim 1, wherein the distance between this auxiliary circuit board and this transformer is smaller or equal to the length of this output.
10. integrated structure as claimed in claim 1, wherein this magnetic core set has one first magnetic core portion and one second magnetic core portion, and the length of output is less than the distance between 3 times of these first magnetic core portions and this second magnetic core portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102106217A CN101651031B (en) | 2008-08-13 | 2008-08-13 | Combined structure of transformer, system circuit board and auxiliary circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102106217A CN101651031B (en) | 2008-08-13 | 2008-08-13 | Combined structure of transformer, system circuit board and auxiliary circuit board |
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| Publication Number | Publication Date |
|---|---|
| CN101651031A CN101651031A (en) | 2010-02-17 |
| CN101651031B true CN101651031B (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102106217A Active CN101651031B (en) | 2008-08-13 | 2008-08-13 | Combined structure of transformer, system circuit board and auxiliary circuit board |
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Cited By (1)
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| CN109215992A (en) * | 2018-10-08 | 2019-01-15 | 台达电子工业股份有限公司 | Magnet assembly and wireless electric energy transmission device comprising the magnet assembly |
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| CN103137305B (en) * | 2011-12-01 | 2016-12-21 | 台达电子企业管理（上海）有限公司 | A kind of transformator conductive structure and transformator |
| CN108111016B (en) * | 2016-11-25 | 2020-04-03 | 台达电子工业股份有限公司 | Power module |
| US11036269B2 (en) | 2014-09-02 | 2021-06-15 | Delta Electronics (Shanghai) Co., Ltd. | Power module and manufacturing method thereof |
| CN106329930B (en) | 2015-07-06 | 2019-02-12 | 台达电子工业股份有限公司 | Power inverter |
| CN105449987B (en) | 2014-09-02 | 2019-06-25 | 台达电子工业股份有限公司 | Power supply device |
| US10447166B2 (en) | 2015-08-31 | 2019-10-15 | Delta Electronics, Inc. | Power module |
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| CN111009383B (en) | 2018-10-08 | 2020-12-29 | 台达电子工业股份有限公司 | Wireless power transmission module and installation method thereof |
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| CN109215992B (en) * | 2018-10-08 | 2020-04-28 | 台达电子工业股份有限公司 | Magnetic assembly and wireless power transmission device comprising same |
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| CN101651031A (en) | 2010-02-17 |
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