CN205160916U - PCB plane transformer and PCB board thereof - Google Patents
PCB plane transformer and PCB board thereof Download PDFInfo
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- CN205160916U CN205160916U CN201521022177.8U CN201521022177U CN205160916U CN 205160916 U CN205160916 U CN 205160916U CN 201521022177 U CN201521022177 U CN 201521022177U CN 205160916 U CN205160916 U CN 205160916U
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- pcb board
- pcb
- former limit
- winding
- flat surface
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Abstract
The utility model relates to a PCB plane transformer and PCB board thereof, plane transformer include the PCB board that the direction correspondence stacked about magnetic core and the at least two -layer edge, the PCB board including the former limit PCB board that constitutes primary side winding and the vice limit PCB board that constitutes vice limit winding, the magnetic core spiral -lock is on each layer PCB board, the department at the border position of corresponding PCB board is arranged to the lead end of the PCB winding on each layer PCB board, former limit PCB board and vice limit PCB board along upper and lower direction staggered arrangement, the corresponding position department of lead end with PCB winding adjacent pair of limit PCB board on at least one former limit PCB board is equipped with and dodges the structure, the corresponding position department of lead end with PCB winding adjacent former limit PCB board on at least one vice limit PCB board is equipped with and dodges the structure. With behind former limit PCB board and the vice limit PCB board staggered arrangement, can effectively reduce the parasitic wparameter of whole PCB plane transformer.
Description
Technical field
The utility model relates to a kind of PCB flat surface transformer and pcb board thereof.
Background technology
PCB flat surface transformer, using the track on printed circuit board as winding, also becomes PCB winding, is the flat surface transformer be most widely used at present.The flat surface transformer of general use polylith pcb board, every block pcb board forms a PCB winding, flat surface transformer mainly comprises magnetic core, the pcb board stacked and lower magnetic core, the pcb board center stacked offers groove and to be sheathed in the middle part of lower magnetic core on magnetic post, then fasten through upper and lower magnetic core and form this road closed, form flat surface transformer.But the pcb board in general flat surface transformer is directly stacked together, the wiring of internal layer pcb board is drawn inconvenient, and it is larger to maintain difficulty.
Be disclose a kind of PCB flat surface transformer in the Chinese invention patent of CN102791076B at Authorization Notice No., comprise magnetic core and at least two-layer pcb board, these pcb boards form former limit winding and vice-side winding, magnetic core spiral-lock is on pcb board, the edge of each layer pcb board arranges the lead end of PCB winding, each layer pcb board at least forms step structure in lead end region, the lead end of each layer arranges on the cascaded surface of respective layer pcb board, and above-mentioned step structure is the unfilled corner formula step structure be arranged on pcb board angle.Each pcb board in this indented style PCB flat surface transformer is an independent winding, and when not in conjunction with external circuit, umber of turn is limited, is difficult to accomplish high pressure.And the leading-out terminal of the formation former limit winding in the PCB flat surface transformer of this structure and each layer pcb board of vice-side winding is arranged in same one end, and the parasitic parameter of whole PCB flat surface transformer is larger.And if the coiling that directly above-mentioned this former limit winding and vice-side winding interlocked, needing again gets along is staggeredly arranged to dodge the lead end of the PCB winding appeared on corresponding pcb board, causes whole PCB flat surface transformer size comparatively greatly, is unfavorable for Miniaturization Design.
Summary of the invention
The utility model provides a kind of PCB flat surface transformer pcb board, to solve the former limit winding of PCB flat surface transformer of the prior art and vice-side winding when interlaced arrangement owing to needing to be staggeredly arranged to cause the technical problem that whole PCB flat surface transformer volume is larger; Meanwhile, the utility model also provides a kind of PCB flat surface transformer using above-mentioned pcb board.
The technical scheme of PCB flat surface transformer pcb board provided by the utility model is: a kind of PCB flat surface transformer pcb board, comprise plate body, plate body is provided with PCB winding, the lead end of PCB winding is arranged in plate body marginal position place, peripheral side on described plate body is used for aliging with the peripheral side of the adjacent pcb board forming PCB flat surface transformer with corresponding mounted on top, and described plate body is provided with avoiding structure for the position corresponding with the lead end of the PCB winding on described adjacent pcb board.
Described plate body is rectangular, and described avoiding structure is chamfering or the fillet that correspondence is arranged in the plate Angle Position place of described plate body.
Described PCB winding is the double-side copper-applying coil with two lead ends, two lead ends are arranged in two front end-plate Angle Position of plate body one to one, two front end-plate angles are unfilled corner structure, and described avoiding structure is arranged in two end plate Angle Position places of described plate body one to one.
The technical scheme of the PCB flat surface transformer of the above-mentioned pcb board of use provided by the utility model is: a kind of PCB flat surface transformer, comprise magnetic core and at least two-layer corresponding along the vertical direction pcb board stacked, described pcb board comprises the former limit pcb board forming former limit winding and the secondary pcb board forming vice-side winding, magnetic core spiral-lock is on each layer pcb board, the lead end of the PCB winding on each layer pcb board is arranged in the marginal position place of corresponding pcb board, former limit pcb board and secondary pcb board along the vertical direction interlaced arrangement and the peripheral side of two pcb boards of arbitrary neighborhood align mutually, the position corresponding with the lead end of the PCB winding of adjacent secondary pcb board at least one former limit pcb board is provided with avoiding structure, the position corresponding with the lead end of the PCB winding of adjacent former limit pcb board at least one secondary pcb board is provided with avoiding structure.
Described former limit pcb board and secondary pcb board all rectangular, the lead end of the PCB winding on the pcb board of former limit is arranged in the front end-plate Angle Position place of former limit pcb board, the lead end of the PCB winding on secondary pcb board is arranged in the end plate Angle Position place of secondary pcb board, avoiding structure on the pcb board of former limit is chamfering or the fillet that correspondence is arranged in the end plate Angle Position place of former limit pcb board, and the avoiding structure on secondary pcb board is chamfering or the fillet that correspondence is arranged in the front end-plate Angle Position place of secondary pcb board.
PCB winding on described former limit pcb board and secondary pcb board is the double-side copper-applying coil with two lead ends, two lead ends of double-side copper-applying coil are arranged in two front end-plate Angle Position places of corresponding pcb board one to one, and described avoiding structure is arranged in two end plate Angle Position places of corresponding pcb board one to one.
Described former limit pcb board is at least furnished with two-layer, the lead end region of the PCB winding on the former limit pcb board of each layer forms former limit step structure, the lead end of the PCB winding on the pcb board of each layer former limit is arranged on the cascaded surface of respective layer pcb board, and described former limit step structure is the unfilled corner formula structure at the front end-plate Angle Position place being arranged on former limit pcb board.
Described former limit pcb board serial or parallel connection is arranged.
Described secondary pcb board is at least furnished with two-layer, the lead end region of the PCB winding on the secondary pcb board of each layer forms secondary step structure, the lead end of the PCB winding on each layer secondary pcb board is arranged on the cascaded surface of respective layer pcb board, and described secondary step structure is the unfilled corner formula structure at the front end-plate Angle Position place being arranged on secondary pcb board.
Described secondary pcb board serial or parallel connection is arranged.
The beneficial effects of the utility model are: in PCB flat surface transformer provided by the utility model, the lead end of the PCB winding on the pcb board of former limit and the PCB winding on secondary pcb board is arranged in the marginal position place of corresponding pcb board, when by former limit pcb board and secondary pcb board along the vertical direction interlaced arrangement time, the peripheral side alignment of two pcb boards of arbitrary neighborhood, can ensure that the volume of flat surface transformer is sold as much as possible like this, and the avoiding structure on former limit pcb board and secondary pcb board can be utilized to dodge the lead end of the PCB winding appeared on corresponding pcb board, former limit pcb board and secondary pcb board do not need wrong card layout mutually to cause the size of whole PCB flat surface transformer larger again.And, after by former limit pcb board and secondary pcb board interlaced arrangement, effectively can reduce the parasitic parameter of whole PCB flat surface transformer.
Further, the lead end of the PCB winding on each pcb board is arranged in respective panels Angle Position place, corresponding, avoiding structure on former limit pcb board and secondary pcb board corresponds to chamfering or the fillet at the end panel Angle Position place be arranged on corresponding pcb board, avoiding structure is comparatively simple, is convenient to the structure of when not affecting PCB winding, pcb board being carried out to avoiding structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of PCB flat surface transformer pcb board provided by the utility model;
Fig. 2 is the structural representation of a kind of embodiment of PCB flat surface transformer provided by the utility model;
Fig. 3 is the schematic cross-section of flat surface transformer shown in Fig. 1.
Embodiment
As shown in Figure 1, a kind of embodiment of PCB flat surface transformer pcb board, pcb board in this embodiment comprises plate body 1, plate body 1 is provided with the centre bore 4 for sleeve magnetic core, plate body 1 is provided with PCB winding 2, PCB winding 2 is herein specially the double-side copper-applying coil with two lead ends, this pcb board is made to form double sided board, two lead ends of PCB winding are arranged in the edge placement place of plate body 1, specifically, plate body 1 is herein rectangular, plate body 1 has four plate angles, four plate angles are two front end-plate angles and two end plate angles, two lead ends of PCB winding are arranged in two front end-plate Angle Position places one to one, and in the present embodiment, two front end-plate angles are unfilled corner structure 4.
When the pcb board provided by the present embodiment mounted on top adjacent with other pcb boards is to form PCB flat surface transformer, the peripheral side of two pcb boards of arbitrary neighborhood is alignd mutually, and plate body 1 is provided with avoiding structure 5 for the position corresponding with the lead end of the PCB winding on corresponding adjacent pcb board.Avoiding structure 5 in the present embodiment is specially the fillet at the two end plate Angle Position places being arranged on plate body one to one, and certainly, avoiding structure also can adopt chamfering or unfilled corner structure.
In other embodiments, if the lead end of the PCB winding of adjacent pcb board is arranged in lateral edges or single plate Angle Position place, avoiding structure herein also can be breach or single fillet structure.In other embodiments, pcb board also can be single sided board.In other embodiments, plate body also can be other shapes.In other embodiments, the lead end on the PCB winding on plate body also can be arranged in middle edge position.
As shown in Figure 1 to Figure 3, a kind of embodiment of PCB flat surface transformer, flat surface transformer in this embodiment comprises magnetic core 12 and six layers of corresponding along the vertical direction pcb board stacked, pcb board herein comprises the former limit pcb board 11 forming former limit winding and the secondary pcb board 13 forming vice-side winding, magnetic core 12 spiral-lock is on each layer pcb board, the structure of magnetic core is identical with the core structure of flat surface transformer of the prior art herein, does not repeat them here.In the present embodiment, former limit pcb board 11 and secondary pcb board 13 all rectangular, PCB winding on former limit pcb board 11 and secondary pcb board 13 is the double-side copper-applying coil with two lead ends, the lead end of the PCB winding on former limit pcb board 11 is arranged in the front end-plate Angle Position place of former limit pcb board, and the lead end of the PCB winding on secondary pcb board 13 is arranged in the end plate Angle Position place of secondary pcb board.Further, former limit pcb board 11 and secondary pcb board 13 interlaced arrangement along the vertical direction, to reduce the parasitic parameter of whole PCB flat surface transformer.
In the present embodiment, PCB winding on former limit pcb board 11 and secondary pcb board 13 is the double-side copper-applying coil with two lead ends, two lead ends of double-side copper-applying coil are arranged in two front end-plate Angle Position places of corresponding pcb board one to one, and described avoiding structure is arranged in two end plate Angle Position places of corresponding pcb board one to one.
Former limit pcb board 11 is furnished with three layers, the lead end region of the PCB winding on the pcb board of each layer former limit forms former limit step structure, the lead end of the PCB winding on the pcb board of each layer former limit is arranged on the cascaded surface of respective layer pcb board, former limit step structure is the unfilled corner formula structure at the front end-plate Angle Position place being arranged on former limit pcb board, this former limit hierarchic structure specifically can adopt Authorization Notice No. to be several structures disclosed in the Chinese invention patent of CN102791076B, does not repeat them here.In the present embodiment, three layers of former limit pcb board 11 are by the series connection of fly line 21 correspondence.
And secondary pcb board 13 is furnished with three layers equally, the lead end region of the PCB winding on the secondary pcb board 13 of each layer forms secondary step structure, the lead end of the PCB winding on each layer secondary pcb board is arranged on the cascaded surface of respective layer pcb board, and secondary step structure is the unfilled corner formula structure at the front end-plate Angle Position place being arranged on secondary pcb board.This secondary hierarchic structure can adopt Authorization Notice No. to be several structures disclosed in the Chinese invention patent of CN102791076B equally, does not repeat them here.In the present embodiment, three layers of secondary pcb board 13 are corresponding in parallel by connecting bus 23.
Due to former limit pcb board and secondary pcb board mounted on top successively, for reducing the volume of whole flat surface transformer, each end limit alignment of former limit pcb board and secondary pcb board can be made.Interference is blocked for avoiding causing the lead end of the PCB winding on adjacent pcb board, the position corresponding with the lead end of the PCB winding of adjacent secondary pcb board 13 on former limit pcb board 11 is provided with avoiding structure, and the position corresponding with the lead end of the PCB winding of adjacent former limit pcb board 11 on secondary pcb board 13 is provided with avoiding structure.With regard to the present embodiment, the avoiding structure on former limit pcb board 11 is specially the fillet that correspondence is arranged in the end plate Angle Position place of former limit pcb board 11, and the avoiding structure on secondary pcb board 13 is the fillet that correspondence is arranged in the front end-plate Angle Position place of secondary pcb board 13.
In fact, as shown in Figure 1, one deck former limit pcb board has fillet to the structure of two-layer former limit, the top pcb board in three layers of former limit pcb board in the present embodiment, but its position arranging lead end can not arrange ladder unfilled corner.And the structure of the two-layer secondary pcb board in top in three layers of secondary pcb board also as shown in Figure 1, one deck secondary pcb board has fillet, but its position arranging lead end can not arrange ladder unfilled corner.
In the present embodiment, former limit pcb board is connected, and secondary pcb board is in parallel, and when former limit winding super-high-current, vice-side winding produces high pressure.In other embodiments, former limit pcb board also can be made in parallel, and the series connection of secondary pcb board.
By external cabling, conveniently former limit pcb board and secondary pcb board can be staggeredly placed, and then can effectively improve transformer parasitic parameter.And, when former limit pcb board and secondary pcb board are staggeredly placed, the lead end of corresponding PCB winding can be appeared preferably by formed unfilled corner formula structure and avoiding structure, under the prerequisite ensureing Miniaturization Design, be convenient to carry out lead-in wire and connect.
In the present embodiment, the avoiding structure on former limit pcb board and secondary pcb board is fillet, and in other embodiments, the avoiding structure on former limit pcb board and secondary pcb board also can be chamfering or unfilled corner.
In the present embodiment, the lead end of the PCB winding on former limit pcb board and secondary pcb board is at plate Angle Position place, in other embodiments, the lead end of the PCB winding on former limit pcb board and secondary pcb board can be also that lead end in flat surface transformer in the Chinese invention patent of CN102791076B is arranged in end middle position as Authorization Notice No..
In the present embodiment, former limit pcb board is furnished with three layers, and in other embodiments, former limit pcb board only can arrange one deck, and former limit pcb board is provided with the avoiding structure for dodging the lead end on adjacent pcb board, can not arrange ladder unfilled corner.And secondary pcb board also only can arrange one deck, now, secondary pcb board is provided with the avoiding structure for dodging the lead end on adjacent pcb board, can not arrange ladder unfilled corner.
Claims (10)
1. a PCB flat surface transformer pcb board, comprise plate body, plate body is provided with PCB winding, the lead end of PCB winding is arranged in plate body marginal position place, it is characterized in that: the peripheral side on described plate body is used for aliging with the peripheral side of the adjacent pcb board forming PCB flat surface transformer with corresponding mounted on top, and described plate body is provided with avoiding structure for the position corresponding with the lead end of the PCB winding on described adjacent pcb board.
2. PCB flat surface transformer pcb board according to claim 1, is characterized in that: described plate body is rectangular, and described avoiding structure is chamfering or the fillet that correspondence is arranged in the plate Angle Position place of described plate body.
3. PCB flat surface transformer pcb board according to claim 2, it is characterized in that: described PCB winding is the double-side copper-applying coil with two lead ends, two lead ends are arranged in two front end-plate Angle Position of plate body one to one, two front end-plate angles are unfilled corner structure, and described avoiding structure is arranged in two end plate Angle Position places of described plate body one to one.
4. a PCB flat surface transformer, comprise magnetic core and at least two-layer corresponding along the vertical direction pcb board stacked, described pcb board comprises the former limit pcb board forming former limit winding and the secondary pcb board forming vice-side winding, magnetic core spiral-lock is on each layer pcb board, the lead end of the PCB winding on each layer pcb board is arranged in the marginal position place of corresponding pcb board, it is characterized in that: former limit pcb board and secondary pcb board along the vertical direction interlaced arrangement and the peripheral side of two pcb boards of arbitrary neighborhood align mutually, the position corresponding with the lead end of the PCB winding of adjacent secondary pcb board at least one former limit pcb board is provided with avoiding structure, the position corresponding with the lead end of the PCB winding of adjacent former limit pcb board at least one secondary pcb board is provided with avoiding structure.
5. PCB flat surface transformer according to claim 4, it is characterized in that: described former limit pcb board and secondary pcb board all rectangular, the lead end of the PCB winding on the pcb board of former limit is arranged in the front end-plate Angle Position place of former limit pcb board, the lead end of the PCB winding on secondary pcb board is arranged in the end plate Angle Position place of secondary pcb board, avoiding structure on the pcb board of former limit is chamfering or the fillet that correspondence is arranged in the end plate Angle Position place of former limit pcb board, avoiding structure on secondary pcb board is chamfering or the fillet that correspondence is arranged in the front end-plate Angle Position place of secondary pcb board.
6. PCB flat surface transformer according to claim 5, it is characterized in that: the PCB winding on described former limit pcb board and secondary pcb board is the double-side copper-applying coil with two lead ends, two lead ends of double-side copper-applying coil are arranged in two front end-plate Angle Position places of corresponding pcb board one to one, and described avoiding structure is arranged in two end plate Angle Position places of corresponding pcb board one to one.
7. the PCB flat surface transformer according to claim 4 or 5 or 6, it is characterized in that: described former limit pcb board is at least furnished with two-layer, the lead end region of the PCB winding on the former limit pcb board of each layer forms former limit step structure, the lead end of the PCB winding on the pcb board of each layer former limit is arranged on the cascaded surface of respective layer pcb board, and described former limit step structure is the unfilled corner formula structure at the front end-plate Angle Position place being arranged on former limit pcb board.
8. PCB flat surface transformer according to claim 7, is characterized in that: described former limit pcb board serial or parallel connection is arranged.
9. PCB flat surface transformer according to claim 8, it is characterized in that: described secondary pcb board is at least furnished with two-layer, the lead end region of the PCB winding on the secondary pcb board of each layer forms secondary step structure, the lead end of the PCB winding on each layer secondary pcb board is arranged on the cascaded surface of respective layer pcb board, and described secondary step structure is the unfilled corner formula structure at the front end-plate Angle Position place being arranged on secondary pcb board.
10. PCB flat surface transformer according to claim 9, is characterized in that: described secondary pcb board serial or parallel connection is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521022177.8U CN205160916U (en) | 2015-12-10 | 2015-12-10 | PCB plane transformer and PCB board thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521022177.8U CN205160916U (en) | 2015-12-10 | 2015-12-10 | PCB plane transformer and PCB board thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205160916U true CN205160916U (en) | 2016-04-13 |
Family
ID=55696553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521022177.8U Active CN205160916U (en) | 2015-12-10 | 2015-12-10 | PCB plane transformer and PCB board thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205160916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401368A (en) * | 2018-04-26 | 2018-08-14 | 维沃移动通信有限公司 | A kind of circuit board and electronic equipment |
| CN113571306A (en) * | 2021-06-30 | 2021-10-29 | 摩拜(北京)信息技术有限公司 | Transformer and charger |
-
2015
- 2015-12-10 CN CN201521022177.8U patent/CN205160916U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401368A (en) * | 2018-04-26 | 2018-08-14 | 维沃移动通信有限公司 | A kind of circuit board and electronic equipment |
| CN113571306A (en) * | 2021-06-30 | 2021-10-29 | 摩拜(北京)信息技术有限公司 | Transformer and charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |