CN205542303U - A MEMS plane magnetic core for spiral miniature transformer - Google Patents
A MEMS plane magnetic core for spiral miniature transformer Download PDFInfo
- Publication number
- CN205542303U CN205542303U CN201620253035.0U CN201620253035U CN205542303U CN 205542303 U CN205542303 U CN 205542303U CN 201620253035 U CN201620253035 U CN 201620253035U CN 205542303 U CN205542303 U CN 205542303U
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- Prior art keywords
- magnetic core
- spiral
- coil windings
- miniature transformer
- insulation board
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Abstract
The utility model discloses a MEMS plane magnetic core for spiral miniature transformer, this magnetic core include the magnetic core, descend the magnetic core, down the magnetic core be E -shaped magnetic cores, and go up the magnetic core lid on the three terminal surface of E -shaped magnetic cores's fluting orientation, and form two square lumen pores down between the magnetic core, the center pillar of E type portion between two square lumen pores, it has a plurality of coil windings to overlap on the center pillar, the coil winding wholly is squarely, and its middle part evolution hole is provided with wing rafter on an angle of coil winding, be provided with the mounting hole on this wing rafter, reaches the outer terminal surface of coil winding bottom in the top, respectively is provided with an insulation board. The utility model discloses a multiple coils winding realizes that the transformer has different power, and the produced power of each coil winding is unchangeable, make the transformer of different power through the quantity that changes the coil winding, and does not change the size of magnetic core, for realize in the magnetic core closely, can realize as long as change the thickness of insulation board.
Description
Technical field
This utility model relates to magnetic core, particularly relates to a kind of MEMS planar magnetic core for spiral miniature transformer.
Background technology
Magnetic core refers to a kind of sintering magnetic metal oxide being made up of various iron oxide mixture.Such as, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core array materials.Manganese-zinc ferrite has the feature of high magnetic permeability and high magnetic flux density, and when the frequency less than 1MHz, has more low-loss characteristic.Nickel-zinc ferrite has high unit area impedance, less than characteristics such as hundreds of low magnetic permeabilities, and also produce relatively low-loss etc. in the frequency higher than 1MHz.FERRITE CORE is in the coil and transformator of various electronic equipments.
In a lot of magnetic cores are applied, the coil windings of magnetic core is typically necessary the multiple different core structure of coupling, to reach plurality of specifications, applies on multiple different product.This needs the most different moulds to realize, and causes production cost to increase.
Utility model content
For deficiency of the prior art, the technical problems to be solved in the utility model there are provided a kind of MEMS planar magnetic core for spiral miniature transformer.
For solving above-mentioned technical problem, this utility model is realized by below scheme: a kind of MEMS planar magnetic core for spiral miniature transformer, this magnetic core includes magnetic core, lower magnetic core, described lower magnetic core is E-type magnetic core, upper magnetic core is placed on three end faces in fluting direction of E-type magnetic core, and form two square lumen pores between lower magnetic core, it it is the center pillar in E type portion between two square lumen pores, center pillar is cased with some coil windings, described coil windings entirety is square, opening square hole in the middle part of it, an angle of coil windings is provided with wing rafter, this wing rafter is provided with installing hole, in the top and the outer face of the coil windings of bottom, it is each provided with one piece of insulation board.
Further, the length of described square hole is consistent with the middle column length of wide and lower magnetic core and width.
Further, described insulation board size is in the same size with the coil windings cutting away wing rafter part.
Further, described insulation board is epoxy insulating board, perforate in the middle part of it, and this perforate size is in the same size with square hole.
Further, the thickness of described insulation board and the thickness of all coils winding are added the height equal to center pillar.
Further, the thickness of described coil windings is between 1 ~ 3mm.
Further, the thickness of described coil windings is 2mm.
Further, described coil windings is provided with inlet wire connection end, outlet connects end.
Relative to prior art, the beneficial effects of the utility model are: this utility model realizes transformator by multiple coil windings and has different power, power produced by each coil windings is constant, the transformator of different power is made by the quantity changing coil windings, and do not change the size of magnetic core, it is tight in order to realize in magnetic core, as long as the thickness changing insulation board can realize.This utility model can reduce the cost of manufacture of transformator, and technique is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is this utility model MEMS planar magnetic core structural representation.
Fig. 2 is this utility model coil winding arrangement schematic diagram.
Fig. 3 is this utility model panel structure schematic diagram.
Labelling in accompanying drawing: upper magnetic core 1, coil windings 2, lower magnetic core 3, insulation board 4, wing rafter 21, installing hole 22, square hole 23.
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus protection domain of the present utility model is made apparent clear and definite defining.
Refer to accompanying drawing 1 ~ 3, a kind of MEMS planar magnetic core for spiral miniature transformer of the present utility model, this magnetic core includes magnetic core 1, lower magnetic core 3, described lower magnetic core 3 is E-type magnetic core, upper magnetic core 1 is placed on three end faces in fluting direction of E-type magnetic core, and form two square lumen pores between lower magnetic core 3, it it is the center pillar in E type portion between two square lumen pores, center pillar is cased with some coil windings 2, described coil windings 2 entirety is square, opening square hole 23 in the middle part of it, an angle of coil windings 2 is provided with wing rafter 21, this wing rafter 21 is provided with installing hole 22, all of coil windings 2 is fixed together by installing hole 22 by stud, occur without and rock.In the top and the outer face of the coil windings 2 of bottom, it is each provided with one piece of insulation board 4, the length of described square hole 23 is consistent with the middle column length of wide and lower magnetic core 3 and width, described insulation board 4 size is in the same size with the coil windings 2 cutting away wing rafter 21 part, described insulation board 4 is epoxy insulating board, perforate in the middle part of it, this perforate size is in the same size with square hole 23, the thickness of described insulation board 4 and the thickness of all coils winding 2 are added the height equal to center pillar, the thickness of described coil windings 2 is between 1 ~ 3mm, and the thickness of its optimum is 2mm.Described upper magnetic core 1, the surface of lower magnetic core 3 use MEMS planar technology.
Embodiment 1: the quantity at least 1 that coil windings 2 is arranged, typically can arrange 2 ~ 6, and the general power of such as transformator is 50W, the quantity of its coil windings 2 is 5, the power of each generation 10W, connects end, outlet connection end series connection by the inlet wire of coil windings 2 so that it is general power reaches 50W.If the height of center pillar is 15mm, the gross thickness of 5 coil windings 2 is 10mm, and therefore, the thickness of insulation board 4 is 2.5mm.
If changing the general power of above-mentioned transformator into 20W, it is only necessary to changing the quantity of coil windings 2, coil windings 2 is 2, and magnetic core size is constant, center pillar height or 15mm, and therefore, insulation board 4 selects 5.5mm.
The foregoing is only preferred implementation of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (9)
1. the MEMS planar magnetic core for spiral miniature transformer, this magnetic core includes magnetic core (1), lower magnetic core (3), described lower magnetic core (3) is E-type magnetic core, upper magnetic core (1) is placed on three end faces in fluting direction of E-type magnetic core, and form two square lumen pores between lower magnetic core (3), it is characterized in that: be the center pillar in E type portion between two square lumen pores, center pillar is cased with some coil windings (2), described coil windings (2) entirety is square, opening square hole (23) in the middle part of it, an angle of coil windings (2) is provided with wing rafter (21), this wing rafter (21) is provided with installing hole (22), in the top and the outer face of the coil windings (2) of bottom, it is each provided with one piece of insulation board (4).
A kind of MEMS planar magnetic core for spiral miniature transformer the most according to claim 1, it is characterised in that: the length of described square hole (23) is consistent with the middle column length of wide and lower magnetic core (3) and width.
A kind of MEMS planar magnetic core for spiral miniature transformer the most according to claim 1, it is characterised in that: described insulation board (4) size is in the same size with the coil windings (2) cutting away wing rafter (21) part.
A kind of MEMS planar magnetic core for spiral miniature transformer the most according to claim 3, it is characterised in that: described insulation board (4) is epoxy insulating board, perforate in the middle part of it, and this perforate size is in the same size with square hole (23).
A kind of MEMS planar magnetic core for spiral miniature transformer the most according to claim 1, it is characterised in that: the thickness of described insulation board (4) and the thickness of all coils winding (2) are added the height equal to center pillar.
A kind of MEMS planar magnetic core for spiral miniature transformer the most according to claim 1, it is characterised in that: the thickness of described coil windings (2) is between 1 ~ 3mm.
A kind of MEMS planar magnetic core for spiral miniature transformer the most according to claim 6, it is characterised in that: the thickness of described coil windings (2) is 2mm.
A kind of MEMS planar magnetic core for spiral miniature transformer the most according to claim 1, it is characterised in that: described upper magnetic core (1), the surface of lower magnetic core (3) use MEMS planar technology.
A kind of MEMS planar magnetic core for spiral miniature transformer the most according to claim 1, it is characterised in that: described coil windings (2) is provided with inlet wire and connects end, outlet connection end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253035.0U CN205542303U (en) | 2016-03-30 | 2016-03-30 | A MEMS plane magnetic core for spiral miniature transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253035.0U CN205542303U (en) | 2016-03-30 | 2016-03-30 | A MEMS plane magnetic core for spiral miniature transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205542303U true CN205542303U (en) | 2016-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620253035.0U Expired - Fee Related CN205542303U (en) | 2016-03-30 | 2016-03-30 | A MEMS plane magnetic core for spiral miniature transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205542303U (en) |
-
2016
- 2016-03-30 CN CN201620253035.0U patent/CN205542303U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170401 Address after: 518110 Guangdong city in Shenzhen province Fu city streets Longhua District Xintang village community dashuikeng yishida tech. Park B building two floor Patentee after: Shenzhen science and Technology Co., Ltd. Address before: 518110 Guangdong province Shenzhen city Longhua District Fucheng street dashuikeng community Xintang yishida Science Park 8 two floor Patentee before: Shenzhen Metallurgy Magnetic Technology co., ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20180330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |