CN218497931U - Planar transformer based on double-layer circuit board - Google Patents
Planar transformer based on double-layer circuit board Download PDFInfo
- Publication number
- CN218497931U CN218497931U CN202222449297.2U CN202222449297U CN218497931U CN 218497931 U CN218497931 U CN 218497931U CN 202222449297 U CN202222449297 U CN 202222449297U CN 218497931 U CN218497931 U CN 218497931U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- magnetic core
- planar transformer
- insulating piece
- double
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model relates to a planar transformer technical field discloses a planar transformer based on double-deck circuit board, include: first magnetic core and second magnetic core, first insulation piece bottom is equipped with first circuit board, first circuit board bottom is equipped with the second circuit board, second circuit board bottom is equipped with the second insulating piece, second insulating piece bottom is equipped with the second magnetic core, second magnetic core central authorities are equipped with the magnetic pillar, the utility model discloses a first insulating piece and second insulating piece concentrate the winding and seal between magnetic core and printed circuit board, greatly increased planar transformer's leakproofness, guaranteed planar transformer's isolation strength, simultaneously through the buffering of first insulating piece and second insulating piece, increased planar transformer's compressive capacity, simultaneously in first magnetic core and second connection process, through the cooperation of arch and recess for it is more firm to connect between the magnetic core, increases planar transformer's intensity.
Description
Technical Field
The utility model relates to a planar transformer technical field specifically is a planar transformer based on double-deck circuit board.
Background
The planar transformer has the characteristics of high frequency, low shape, small height, high working frequency and the like. The magnetic core of the planar transformer is directly mounted on the printed circuit board and is overlapped by a plurality of printed circuit boards, and the boards are insulated by insulating spacers.
Through searching, the publication number is: CN213905098U, a planar transformer based on a double-layer circuit board is disclosed, which comprises a circuit board, a planar magnetic core and pins. The plane magnetic core includes first magnetic core and second magnetic core, and first magnetic core and second magnetic core are respectively from the two sides centre gripping circuit board setting of circuit board. The circuit board includes a first circuit board and a second circuit board. One end of the first circuit board and one end of the second circuit board are arranged in a staggered mode, and the other end of the first circuit board and the other end of the second circuit board are arranged in a staggered mode. The pins include a first pin and a second pin.
However, the above technical solutions have the following drawbacks: the electrical winding module is often exposed outside the circuit board, which causes low input/output isolation strength, and therefore, the electrical winding module can only be applied to occasions with low isolation strength requirement, and meanwhile, the magnetic core is directly installed on the printed circuit board, which has poor connection strength.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a planar transformer based on double-deck circuit board to solve the current electrical property winding module that proposes in the above-mentioned background art and often expose in the circuit board outside, cause input/output isolation strength not high, the relatively poor problem of magnetic core joint strength simultaneously.
In order to achieve the above object, the utility model provides a following technical scheme: a planar transformer based on a dual layer circuit board, comprising: first magnetic core and second magnetic core, first magnetic core bottom is equipped with the first insulation piece, first insulation piece bottom is equipped with first circuit board, first circuit board bottom is equipped with the second circuit board, second circuit board bottom is equipped with the second insulating piece, second insulating piece bottom is equipped with the second magnetic core, second magnetic core central authorities are equipped with the magnetism post, first circuit board and second circuit board top central authorities are equipped with the winding.
Furthermore, first magnetic core is located the inside both ends of first insulation piece and is equipped with the end post, and end post bottom is equipped with the arch, second magnetic core is located the outside both ends of first insulation piece and is equipped with the lug, and the lug bottom is equipped with the arch.
Further, the second magnetic core is located the inside both ends of second insulating piece and is equipped with the end post, and the end post top is equipped with the recess, the second magnetic core is located the outside both ends of second insulating piece and is equipped with the lug, and the lug is inside to be equipped with the recess.
Furthermore, one side of the first circuit board is provided with a first pin, and one side of the second circuit board is provided with a second pin.
Furthermore, the first circuit board and the second circuit board are internally provided with through holes at the outer sides of the magnetic columns.
Furthermore, the bottom surface of the first insulation sheet has the same area as the top surface of the first circuit board, and the top surface of the second insulation sheet has the same area as the bottom surface of the second circuit board.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a first insulation piece that sets up, first magnetic core and second insulating piece, realized when the planar transformer based on double-deck circuit board uses, concentrate the winding through first insulating piece and second insulating piece and seal between magnetic core and printed circuit board, greatly increased the leakproofness of planar transformer, the isolation strength of planar transformer has been guaranteed, simultaneously through the buffering of first insulating piece and second insulating piece, the compressive capacity of planar transformer has been increased, simultaneously in first magnetic core and second connection, cooperation through arch and recess, make to connect between the magnetic core more so firm, increase the intensity of planar transformer.
Drawings
Fig. 1 is an exploded view of a planar transformer based on a double-layer circuit board according to the present invention;
fig. 2 is a perspective view of a planar transformer based on a double-layer circuit board according to the present invention;
fig. 3 is a front view of the planar transformer based on the double-layer circuit board of the present invention;
fig. 4 is a left side view of the planar transformer based on the double-layer circuit board of the present invention.
In the figure: 1-a first magnetic core; 101-a bump; 2-a first insulating sheet; 3-a first circuit board; 301-a first pin; 4-a second circuit board; 401-a second pin; 5-a second insulating sheet; 6-a second magnetic core; 601-a groove; 7-a magnetic column; 8-winding.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, the present invention provides a technical solution: a planar transformer based on a dual layer circuit board, comprising: first magnetic core 1 and second magnetic core 6, 1 bottom of first magnetic core is equipped with first insulation piece 2, 2 bottoms of first insulation piece are equipped with first circuit board 3, 3 bottoms of first circuit board are equipped with second circuit board 4, 4 bottoms of second circuit board are equipped with second insulating piece 5, 5 bottoms of second insulating piece are equipped with second magnetic core 6, 6 central authorities of second magnetic core are equipped with magnetic column 7, first circuit board 3 and 4 top central authorities of second circuit board are equipped with winding 8. Concentrate the winding through first insulation piece 2 and second insulating piece 5 and seal between magnetic core and printed circuit board, greatly increased planar transformer's leakproofness, guaranteed planar transformer's isolation strength, simultaneously through the buffering of first insulation piece 2 and second insulating piece 5, increased planar transformer's compressive capacity.
First magnetic core 1 is located 2 inside both ends integrated into one piece of first insulation piece and has the end post, end post bottom is equipped with protruding 101, second magnetic core 6 is located 2 outside both ends of first insulation piece and is equipped with the lug, the lug bottom is equipped with protruding 101, second magnetic core 6 is located 5 inside both ends of second insulation piece and is equipped with the end post, the end post top is equipped with recess 601, second magnetic core 6 is located 5 outside both ends of second insulation piece and is equipped with the lug, the inside recess 601 that is equipped with of lug, interference fit through protruding 101 and recess 601, the joint strength between 1 of first magnetic core of being convenient for and the second magnetic core 6, increase the whole joint strength of planar transformer.
The first circuit board 3 has a first pin 301 on one side thereof, and the second circuit board 4 has a second pin 401 on one side thereof.
The through holes are formed in the outer sides of the magnetic columns 7, located inside the first circuit board 3 and the second circuit board 4, and meanwhile the through holes are also formed in the positions, located at the end columns of the magnetic cores, of the two sides of the first circuit board 3 and the second circuit board 4, so that the magnetic cores can be conveniently installed.
The areas of the bottom surface of the first insulating sheet 2 and the top surface of the first circuit board 3 are the same, and the areas of the top surface of the second insulating sheet 5 and the bottom surface of the second circuit board 4 are the same, so that the insulating sheets can cover the whole circuit board conveniently, and the sealing performance of the transformer is improved.
The working principle is as follows: when the planar transformer based on the double-layer circuit board is used, the winding is concentrated and sealed between the magnetic core and the printed circuit board through the first insulation sheet 2 and the second insulation sheet 5, the sealing performance of the planar transformer is greatly increased, the isolation strength of the planar transformer is ensured, meanwhile, the buffering through the first insulation sheet 2 and the second insulation sheet 5 is realized, the pressure resistance of the planar transformer is improved, meanwhile, in the process of connecting the first magnetic core 1 and the second magnetic core, the matching through the bulge 101 and the groove 601 is realized, the connection between the magnetic cores is more firm, and the strength of the planar transformer is improved.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (6)
1. A planar transformer based on a dual layer circuit board, comprising: first magnetic core (1) and second magnetic core (6), its characterized in that: first magnetic core (1) bottom is equipped with first insulation piece (2), first insulation piece (2) bottom is equipped with first circuit board (3), first circuit board (3) bottom is equipped with second circuit board (4), second circuit board (4) bottom is equipped with second insulating piece (5), second insulating piece (5) bottom is equipped with second magnetic core (6), second magnetic core (6) central authorities are equipped with magnetic column (7), first circuit board (3) and second circuit board (4) top central authorities are equipped with winding (8).
2. The planar transformer based on the double-layer circuit board as claimed in claim 1, wherein: first magnetic core (1) is located the inside both ends of first insulation piece (2) and is equipped with the end post, and end post bottom is equipped with arch (101), second magnetic core (6) are located the outside both ends of first insulation piece (2) and are equipped with the lug, and the lug bottom is equipped with arch (101).
3. The planar transformer based on the double-layer circuit board as claimed in claim 1, wherein: second magnetic core (6) are located the inside both ends of second insulating piece (5) and are equipped with the end post, and the end post top is equipped with recess (601), second magnetic core (6) are located the outside both ends of second insulating piece (5) and are equipped with the lug, and the lug is inside to be equipped with recess (601).
4. The planar transformer based on the double-layer circuit board as claimed in claim 1, wherein: first pin (301) are arranged on one side of the first circuit board (3), and second pin (401) are arranged on one side of the second circuit board (4).
5. The planar transformer based on the double-layer circuit board as claimed in claim 1, wherein: through holes are formed in the first circuit board (3) and the second circuit board (4) and are located on the outer sides of the magnetic columns (7).
6. The planar transformer based on the double-layer circuit board as claimed in claim 1, wherein: the area of first insulating piece (2) bottom surface and first circuit board (3) top surface is the same, the area of second insulating piece (5) top surface and second circuit board (4) bottom surface is the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222449297.2U CN218497931U (en) | 2022-09-16 | 2022-09-16 | Planar transformer based on double-layer circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222449297.2U CN218497931U (en) | 2022-09-16 | 2022-09-16 | Planar transformer based on double-layer circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218497931U true CN218497931U (en) | 2023-02-17 |
Family
ID=85191261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222449297.2U Active CN218497931U (en) | 2022-09-16 | 2022-09-16 | Planar transformer based on double-layer circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218497931U (en) |
-
2022
- 2022-09-16 CN CN202222449297.2U patent/CN218497931U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206250261U (en) | Secondary cell | |
| US8435656B2 (en) | Secondary battery with protection circuit module | |
| US10062493B2 (en) | Electronic component and circuit board having the same mounted thereon | |
| US3239798A (en) | Electrical connector for interconnecting printed circuit panels | |
| CN214203832U (en) | Battery pack and power consumption device | |
| CN114142180B (en) | Battery switching member, battery and battery assembling method | |
| US8787002B2 (en) | Winding-type solid electrolytic capacitor package structure | |
| CN218497931U (en) | Planar transformer based on double-layer circuit board | |
| WO2019091353A1 (en) | Planar transformer and switching power adapter | |
| US11398703B2 (en) | Radio frequency connector | |
| CN218602676U (en) | Battery cell and electric equipment | |
| US11923148B2 (en) | Substrate-type multi-layer polymer capacitor (MLPC) having electroplated terminal structure | |
| JP2008021771A (en) | Chip-type solid electrolytic capacitor | |
| JPH04345201A (en) | Irreversible circuit component and center conductor for irreversible circuit component | |
| CN209981458U (en) | NFC antenna | |
| CN215868931U (en) | High-isolation planar transformer | |
| CN218005477U (en) | Novel laminated busbar | |
| CN217333845U (en) | MLPC substrate type capacitor with electroplated terminal structure | |
| CN211181922U (en) | Vertical double-sheet assembled inductor | |
| CN217239236U (en) | High-power flat-plate transformer | |
| CN210670762U (en) | Concatenation formula circuit board | |
| CN213242268U (en) | Paster ceramic capacitor | |
| CN218939674U (en) | Multi-chip assembled patch diode | |
| CN215770800U (en) | Transformer structure | |
| CN218731631U (en) | Connecting piece, battery and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |