CN105206404A - Transformer - Google Patents
Transformer Download PDFInfo
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- CN105206404A CN105206404A CN201510701587.3A CN201510701587A CN105206404A CN 105206404 A CN105206404 A CN 105206404A CN 201510701587 A CN201510701587 A CN 201510701587A CN 105206404 A CN105206404 A CN 105206404A
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- type magnetic
- upper shell
- pcb board
- lower cover
- transformer according
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Abstract
The invention relates to a transformer which comprises a base, two E-shaped magnetic cores, an upper casing cover, a lower casing cover, a PCB and secondary coils, wherein a through hole is formed in the PCB, and a primary coil is etched on the PCB around the through hole; perforated holes are formed in the upper casing cover and the lower casing cover respectively, and wiring posts of the E-shaped magnetic cores are inserted into the perforated holes and the through hole; a plurality of first insertion pins which are connected with the primary coil and a plurality of second insertion pins which are electrically connected with the secondary coils are arranged on the base; the base comprises a base plate and a vertical plate which is arranged on partial edge part of the base plate; the first insertion pins are arranged on the vertical plate, and the second insertion pins are arranged on the base plate; the E-shaped magnetic cores are arranged at the part, located between the vertical plate and the second insertion pins, of the base plate; a notch is formed in the vertical plate, and two ends of the secondary coils penetrate through the notch. According to the transformer, the E-shaped magnetic cores are arranged on the base and spliced, the upper casing cover and the lower casing cover are arranged between the two E-shaped magnetic cores and spliced, and the PCB and the secondary coils are arranged between the upper casing cover and the lower casing cover, so that the structure is simple, and the size is small.
Description
Technical field
The present invention relates to a kind of transformer, particularly relate to a kind of transformer being convenient to assemble on circuit boards.
Background technology
Current, along with the development of science and technology, the kind of portable electric appts more and more becomes variation, when giving charging portable electronic apparatus, usually needs the adapter of corresponding specification.Because the conventional transformer structure of adapter inner is complicated, be unfavorable for the miniaturization of adapter; And, at adapter inner, traditional transformer and circuit board realize the mode be electrically connected, normally direct by the primary and secondary coil extraction fly line in traditional transformer, for use in welding on circuit boards, because the fly line of drawing easily fractures, traditional transformer is caused to be electrically connected with circuit board bad.
Summary of the invention
Based on this, be necessary for the problems referred to above, provide that a kind of structure is simple, transformer that small volume and being convenient to assembles on circuit boards.
A kind of transformer, comprising: base, be located on described base and two the E-type magnetic cores spliced, be located at upper shell cover between two described E-type magnetic cores and lower cover and the pcb board be located between described upper shell cover and lower cover and secondary coil; Described pcb board offers through hole, this pcb board has primary coil around described through hole etching; Described upper shell cover and lower cover offer perforation respectively, and the wrapping post of described E-type magnetic core inserts described perforation and described through hole; Described base is provided with some first contact pins be electrically connected with described secondary coil and some second contact pins be electrically connected with described primary coil;
The riser that described base comprises base plate and arranges along the part edge of described base plate; Described first contact pin is located on described riser, and described second contact pin is located on described base plate; Described E-type magnetic core is arranged on the described base plate between described riser and described second contact pin; Described riser offers notch, and the two ends of described secondary coil are through described notch.
Wherein in an embodiment, described pcb board is multilayer circuit board, and on every layer of described wiring board, etching has described primary coil.
Wherein in an embodiment, the relative two sides of described pcb board are respectively equipped with described secondary coil.
Wherein in an embodiment, described notch place is sealed with epoxy glue.
Wherein in an embodiment, some described second contact pins are located on described base plate side by side.
Wherein in an embodiment, at least one in described upper shell cover and lower cover offers holding tank, described holding tank is around described perforation and arrange towards described pcb board; Described secondary coil is located in described holding tank.
Wherein in an embodiment, described upper shell cover is provided with and is arranged at intervals with the first stopper slot and the first spacing preiection, and described lower cover is provided with the second spacing preiection inserting described first stopper slot and the second stopper slot inserted for described first spacing preiection.
Wherein in an embodiment, described E-type magnetic core comprises square plate, be convexly equipped in wrapping post in the middle part of described square plate and two side plates, and two described side plates are symmetrically distributed in the both sides of described wrapping post.
Wherein in an embodiment, described side plate offers towards the spacing breach of described wrapping post, the part side of described upper shell cover and lower cover is located in described spacing breach.
Above-mentioned transformer is by be located on base and two E-type magnetic cores of splicing, to be located between two E-type magnetic cores and the upper shell cover of splicing and lower cover and the pcb board be located between upper shell cover and lower cover and secondary coil, and structure is simple, small volume.In addition, by being located at some first contact pins be electrically connected on base and with secondary coil and some second contact pins be electrically connected with the primary coil be etched on pcb board, be convenient to transformer is welded on by the mode of grafting on the circuit board in adapter, avoid the fly line of drawing because of primary coil easily fracture and cause electrical connection bad.
Accompanying drawing explanation
Fig. 1 is the detonation configuration schematic diagram of the transformer of a preferred embodiment of the present invention;
Fig. 2 is the assembling assumption diagram of transformer shown in Fig. 1;
Another visual angle figure that Fig. 3 is transformer shown in Fig. 2.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
As shown in Figure 1 to Figure 3, the transformer 10 of a preferred embodiment of the present invention, comprising: base 11, two E-type magnetic cores, upper shell cover 12, lower cover 13, pcb board 14 and two secondary coils as vice-side winding.In the present embodiment, two E-type magnetic cores are specially: the first E-type magnetic core 15 and the second E-type magnetic core 16.Two secondary coils are specially: the first secondary coil 17 and second subprime coil 18.
In the present embodiment, the first E-type magnetic core 15 and the second E-type magnetic core 16 include square plate, be convexly equipped in wrapping post in the middle part of square plate and two side plates, and two side plates are symmetrically distributed in the both sides of wrapping post.Under the using state of transformer 10, the square plate of the second E-type magnetic core 16 is located on base 11, and the first E-type magnetic core 15 and the second E-type magnetic core 16 are stitched together; Concrete, the wrapping post of the wrapping post of the first E-type magnetic core 15 and two side plates and the second E-type magnetic core 16 and two side plates align and splice.
Upper shell cover 12 and lower cover 13 are located between the first E-type magnetic core 15 and the second E-type magnetic core 16, and stacked splicing is arranged.Pcb board 14, first secondary coil 17 and second subprime coil 18 are located between upper shell cover 12 and lower cover 13, and the relative two sides of pcb board 14 are located at respectively by the first secondary coil 17 and second subprime coil 18.Pcb board 14 offers through hole 141, and pcb board 14 has the primary coil (not shown) as former limit winding around through hole 141 etching.Upper shell cover 12 and lower cover 13 offer the first perforation 121 and the second perforation 131 respectively.When first E-type magnetic core 15 and the second E-type magnetic core 16 are stitched together, wrapping post inserts the first perforation 121, second perforation 131 and through hole 141.
In order to realize transformer 10 to be welded in the mode of grafting on the circuit board in adapter, base 11 is provided with some first contact pins 191 be electrically connected with the first secondary coil 17 and second subprime coil 18 and some second contact pins 192 be electrically connected with primary coil.In the present embodiment, the quantity of the first contact pin 191 is two, one end of first secondary coil 17 and one end of second subprime coil 18 are electrically connected with one of them first contact pin 191, and the other end of the first secondary coil 17 and the other end of second subprime coil 18 are electrically connected with another one first contact pin 191.Pcb board 14 is individual layer wiring board, can be also multilayer circuit board, and on every sandwich circuit board, etching has primary coil, and the quantity of the second contact pin 192 can set the needs of former limit winding quantity according to the number of plies of wiring board in pcb board 14 and in actual applications.
In the present embodiment, the riser 112 that base 11 comprises base plate 111 and arranges along the part edge of base plate 111.First contact pin 191 is located on riser 112, and some second contact pins 192 are located on base plate 111 side by side.Second E-type magnetic core 16 is arranged on the base plate 111 between riser 112 and the second contact pin 192.Riser 112 offers notch 113, the two ends of the first secondary coil 17 and second subprime coil 18 are through notch 113.In order to improve fail safe, external force is avoided to tear into shreds the first secondary coil 17 and second subprime coil 18, notch 113 place is sealed with epoxy glue (not shown), in actual applications, the two ends of the first secondary coil 17 and second subprime coil 18 are through after notch 113, with epoxy glue seal notch 113, the double-end fly line epoxy glue of the first secondary coil 17 and second subprime coil 18 is fixed.
In the present embodiment, upper shell cover 12 offers the first holding tank (not shown), lower cover 13 offers the second holding tank 132, first holding tank around the first perforation 121 and arrange towards pcb board 14, the second holding tank 132 is around the second perforation 131 and arrange towards pcb board 14.First secondary coil 17 is located in the first holding tank, and second subprime coil 18 is located in the second holding tank 132.In other embodiments, when pcb board 14 being only provided with single secondary coil, any one in upper shell cover 12 and lower cover 13 offers the holding tank for arranging single secondary coil.
In order to prevent being shifted between upper shell cover 12 and lower cover 13, upper shell cover 12 is provided with and is arranged at intervals with the first stopper slot 123 and the first spacing preiection 124, the second spacing preiection 133 that lower cover 13 is provided with insertion first stopper slot 123 and the second stopper slot 134 inserted for the first spacing preiection 124.
Rotate between the first E-type magnetic core 15 and the second E-type magnetic core 16 to prevent spliced upper shell cover 12 and lower cover 13, the side plate of the first E-type magnetic core 15 and the second E-type magnetic core 16 offers towards the spacing breach of wrapping post, and the part side of upper shell cover 12 and lower cover 13 is located in spacing breach.Such as, two side plates of the second E-type magnetic core 16 all offer towards the spacing breach 161 of its limited post, the part side of lower cover 13 is located in two spacing breach 161.
Above-mentioned transformer 10 is by be located on base 11 and two E-type magnetic cores of splicing, to be located between two E-type magnetic cores and the upper shell cover of splicing and lower cover and the pcb board be located between upper shell cover and lower cover and secondary coil, and structure is simple, small volume.In addition, by being located at some first contact pins be electrically connected on base 11 and with secondary coil and some second contact pins be electrically connected with the primary coil be etched on pcb board, be convenient to transformer 10 is welded on by the mode of grafting on the circuit board in adapter, avoid the fly line of drawing because of primary coil easily fracture and cause electrical connection bad.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (9)
1. a transformer, it is characterized in that, comprising: base, be located on described base and two the E-type magnetic cores spliced, be located at upper shell cover between two described E-type magnetic cores and lower cover and the pcb board be located between described upper shell cover and lower cover and secondary coil; Described pcb board offers through hole, this pcb board has primary coil around described through hole etching; Described upper shell cover and lower cover offer perforation respectively, and the wrapping post of described E-type magnetic core inserts described perforation and described through hole; Described base is provided with some first contact pins be electrically connected with described secondary coil and some second contact pins be electrically connected with described primary coil;
The riser that described base comprises base plate and arranges along the part edge of described base plate; Described first contact pin is located on described riser, and described second contact pin is located on described base plate; Described E-type magnetic core is arranged on the described base plate between described riser and described second contact pin; Described riser offers notch, and the two ends of described secondary coil are through described notch.
2. transformer according to claim 1, is characterized in that, described pcb board is multilayer circuit board, and on every layer of described wiring board, etching has described primary coil.
3. transformer according to claim 1, is characterized in that, the relative two sides of described pcb board are respectively equipped with described secondary coil.
4. transformer according to claim 1, is characterized in that, described notch place is sealed with epoxy glue.
5. transformer according to claim 1, is characterized in that, some described second contact pins are located on described base plate side by side.
6. transformer according to claim 1, is characterized in that, at least one in described upper shell cover and lower cover offers holding tank, and described holding tank is around described perforation and arrange towards described pcb board; Described secondary coil is located in described holding tank.
7. the transformer according to claim 1 or 6, it is characterized in that, described upper shell cover is provided with and is arranged at intervals with the first stopper slot and the first spacing preiection, and described lower cover is provided with the second spacing preiection inserting described first stopper slot and the second stopper slot inserted for described first spacing preiection.
8. transformer according to claim 1, is characterized in that, described E-type magnetic core comprises square plate, be convexly equipped in wrapping post in the middle part of described square plate and two side plates, and two described side plates are symmetrically distributed in the both sides of described wrapping post.
9. transformer according to claim 8, is characterized in that, described side plate offers towards the spacing breach of described wrapping post, and the part side of described upper shell cover and lower cover is located in described spacing breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701587.3A CN105206404A (en) | 2015-10-22 | 2015-10-22 | Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701587.3A CN105206404A (en) | 2015-10-22 | 2015-10-22 | Transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105206404A true CN105206404A (en) | 2015-12-30 |
Family
ID=54954020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510701587.3A Pending CN105206404A (en) | 2015-10-22 | 2015-10-22 | Transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105206404A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492967A (en) * | 2018-05-23 | 2018-09-04 | 东莞联宝光电科技有限公司 | transformer manufacturing method and transformer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000223320A (en) * | 1999-01-28 | 2000-08-11 | Hitachi Ferrite Electronics Ltd | Transformer for large current |
| CN201081806Y (en) * | 2007-08-24 | 2008-07-02 | 艾默生网络能源***有限公司 | Planar transformer |
| CN201369232Y (en) * | 2008-11-12 | 2009-12-23 | 汤文生 | Planar transformer |
| CN202084403U (en) * | 2011-05-21 | 2011-12-21 | 重庆长安汽车股份有限公司 | Transformer for hybrid vehicle direct current converter |
| WO2012042707A1 (en) * | 2010-09-29 | 2012-04-05 | Fdk株式会社 | Insulating transformer |
| CN103093940A (en) * | 2013-01-22 | 2013-05-08 | 东莞市盛光电子有限公司 | Power transformer plug and assembly method thereof |
| CN103426614A (en) * | 2012-05-24 | 2013-12-04 | 群光电能科技股份有限公司 | Transformer with combined reels |
| CN104051144A (en) * | 2013-03-13 | 2014-09-17 | Ls产电株式会社 | Transformer Module For Electric Vehicle |
| CN205140733U (en) * | 2015-10-22 | 2016-04-06 | 东莞市昱懋纳米科技有限公司 | Transformer |
-
2015
- 2015-10-22 CN CN201510701587.3A patent/CN105206404A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000223320A (en) * | 1999-01-28 | 2000-08-11 | Hitachi Ferrite Electronics Ltd | Transformer for large current |
| CN201081806Y (en) * | 2007-08-24 | 2008-07-02 | 艾默生网络能源***有限公司 | Planar transformer |
| CN201369232Y (en) * | 2008-11-12 | 2009-12-23 | 汤文生 | Planar transformer |
| WO2012042707A1 (en) * | 2010-09-29 | 2012-04-05 | Fdk株式会社 | Insulating transformer |
| CN202084403U (en) * | 2011-05-21 | 2011-12-21 | 重庆长安汽车股份有限公司 | Transformer for hybrid vehicle direct current converter |
| CN103426614A (en) * | 2012-05-24 | 2013-12-04 | 群光电能科技股份有限公司 | Transformer with combined reels |
| CN103093940A (en) * | 2013-01-22 | 2013-05-08 | 东莞市盛光电子有限公司 | Power transformer plug and assembly method thereof |
| CN104051144A (en) * | 2013-03-13 | 2014-09-17 | Ls产电株式会社 | Transformer Module For Electric Vehicle |
| CN205140733U (en) * | 2015-10-22 | 2016-04-06 | 东莞市昱懋纳米科技有限公司 | Transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492967A (en) * | 2018-05-23 | 2018-09-04 | 东莞联宝光电科技有限公司 | transformer manufacturing method and transformer |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |
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| RJ01 | Rejection of invention patent application after publication |