CN202171991U - Sintered magnetic core - Google Patents
Sintered magnetic core Download PDFInfo
- Publication number
- CN202171991U CN202171991U CN2011202809099U CN201120280909U CN202171991U CN 202171991 U CN202171991 U CN 202171991U CN 2011202809099 U CN2011202809099 U CN 2011202809099U CN 201120280909 U CN201120280909 U CN 201120280909U CN 202171991 U CN202171991 U CN 202171991U
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- China
- Prior art keywords
- magnetic core
- lug boss
- plane
- sintered
- described magnetic
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Abstract
The utility model relates to a sintered magnetic core, which is provided with an upper surface and a lower surface. When sintered, multiple magnetic cores are sequentially stacked through the upper surfaces and the lower surfaces, and projection parts which are capable of leading the upper magnetic core to be erected on the lower magnetic core are arranged between the lower surface of the upper magnetic core and the upper surface of the lower magnetic core. The sintered magnetic core is a soft ferrite magnetic core, and the projection parts can be at least three projection points located out of the same straight line or can be at least two stripped projections located out of the same straight line. Protective layers which cannot react with the magnetic core when the magnetic core is sintered are arranged on the outer surfaces of the projection parts. The sintered magnetic core has the advantages that adhesion and deformation are reduced greatly, detachment is easy and damages are few, and accordingly, manual work consumption is reduced and quantity of produced non-defective products is increased.
Description
Technical field
The utility model relates to a kind of magnetic core, especially a kind of magnetic core that needs through sintering processes.
Background technology
The magnetic core industry that generally needs the process sintering processes adopts multiple-level stack production for reducing cost with many products.In order to pile up production, the upper and lower surface design of product is a plane face type, and product is after the process high temperature sintering; The interplanar of adjacent magnetic core is easy to adhesion and produces distortion; Split difficulty, length consuming time and efficient is low, and split process is easy to make magnetic core damaged (magnetic core is a fragile article).For solving the adhesion problem on deformation; General manufacturer can adopt some medium (like alumina particle) to fill between product, but these filling media are easy to flow in the product groove, causes product appearance bad; Even produce bad characteristic with product generation chemical reaction, cause product not use.
The utility model content
To the technical problem that exists in the prior art, the purpose of the utility model is: provide a kind of simple in structure, effectively solve adhesion phenomenon, pile up the magnetic core through sintering processes that splits easily behind the sintering.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of magnetic core through sintering processes has upper and lower plane, during sintering; Stack gradually through upper and lower plane between magnetic core; Be positioned at the lower plane of the magnetic core of last layer, the last interplanar with the magnetic core that is positioned at following one deck is provided with the upper strata magnetic core is erected at the lug boss on lower floor's magnetic core.
Magnetic core is a magnetic ferrite magnetic core.
Lug boss is at least three salient points, three salient points is wherein arranged not on same straight line.Salient point is arranged on the last plane of magnetic core.Salient point is segment, cone, cylinder or pyramid.Magnetic core is the shape symmetry on horizontal plane, and salient point is in a symmetrical arrangement with the plane of symmetry of magnetic core.
Lug boss is at least two not strip bulges on same straight line.Strip bulge is arranged on the last plane of magnetic core.
The lug boss outer surface is provided with when sintering not the protective layer that can react with magnetic core.Protective layer is the zirconia bisque.
After adopting this technical scheme, the utlity model has following advantage:
Only need simply lug boss to be set, can the last layer magnetic core be erected at down on one deck magnetic core through lug boss, reduce the contact area between two magnetic cores on upper and lower plane.Product reduces through high temperature sintering posterior synechia metaboly greatly, splits easily, and is few damaged, thereby improved production efficiency greatly, reduces artificial loss, improved the production non-defective unit quantity of product.Only need after sintering is accomplished, product simply be ground, just can lug boss be removed, can not have influence on the outward appearance of product.
Lug boss is made as salient point, salient point is made as segment, salient point is made as axial symmetry arranges that the optimal way that these are a series of makes that the contact area between magnetic core is littler, better effects if is convenient to grind simultaneously.The salient point symmetric arrangement make pile up more steady.
Lug boss all is arranged on the plane, and promptly lower plane is convenient to magnetic core and is placed on the horizontal plane for not containing the smooth flat of lug boss.
In the lug boss appearance protective layer being set, for example is the zirconia bisque, and protective layer can not react with magnetic core when sintering, effectively stops the adhesion between magnetic core and the lug boss.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is done further detailed explanation below.
Fig. 1 is the utility model stereogram.
Fig. 2 is the stereogram at another visual angle of the utility model.
Fig. 3 piles up the stereogram of sintering for magnetic core.
Embodiment
Fig. 1, a kind of magnetic core 1 through sintering processes shown in Figure 2 are the ER series of products of soft magnetism industry, have last plane 2 and lower plane 3, have five salient points 4 on the last plane 2, have three in the salient point 4 not on same straight line.Salient point 4 is a round dot, segment shape specifically, the contact area between the magnetic core 1 that can reduce as far as possible like this to pile up.Salient point 4 is provided with the zirconia bisque.
Shown in Figure 3; During sintering, magnetic core need pile up each other, after magnetic core is provided with salient point; Salient point under the magnetic core of last layer passes through on the magnetic core of one deck; Be erected at down on one deck magnetic core, the last plane of the lower plane of last layer magnetic core and following one deck magnetic core is separated from one another, between the lower plane of last layer magnetic core and the salient point on following one deck magnetic core, has very little contact-making surface.Therefore behind the sintering, be difficult for adhesion between magnetic core, be easy to separate.Only need add one grinding step in the back, salient point is removed, can not influence product appearance.
Except the described mode of present embodiment; The lug boss of magnetic core can also adopt strip bulge, and for example elongated strip shaped is erected at the upper strata magnetic core on lower floor's magnetic core as long as the shape of lug boss is provided with to satisfy; Reduce the contact area between magnetic core as far as possible, and be convenient to grind and get final product.In addition, lug boss can be arranged on the lower plane, perhaps is distributed in simultaneously on plane and the lower plane.This method also can be applied to soft magnetism industry PQ series, EP series and ER series etc., and these conversion are all in the protection range of the utility model.
Claims (10)
1. magnetic core through sintering processes; Has upper and lower plane; During sintering, stack gradually through upper and lower plane between magnetic core, it is characterized in that: the lower plane that is positioned at the magnetic core of last layer; Last interplanar with the magnetic core that is positioned at following one deck is provided with the upper strata magnetic core is erected at the lug boss on lower floor's magnetic core.
2. according to the described magnetic core of claim 1, it is characterized in that: said magnetic core is a magnetic ferrite magnetic core.
3. according to the described magnetic core of claim 2, it is characterized in that: said lug boss is at least three salient points, three salient points is wherein arranged not on same straight line.
4. according to the described magnetic core of claim 3, it is characterized in that: said salient point is arranged on the last plane of magnetic core.
5. according to the described magnetic core of claim 4, it is characterized in that: said salient point is segment, cone, cylinder or pyramid.
6. according to the described magnetic core of claim 5, it is characterized in that: said magnetic core is the shape symmetry in the horizontal direction, and salient point is in a symmetrical arrangement with the plane of symmetry of magnetic core.
7. according to the described magnetic core of claim 2, it is characterized in that: said lug boss is at least two not strip bulges on same straight line.
8. according to the described magnetic core of claim 7, it is characterized in that: said strip bulge is arranged on the last plane of magnetic core.
9. according to each described magnetic core in the claim 1 to 8, it is characterized in that: said lug boss outer surface is provided with when sintering not the protective layer that can react with magnetic core.
10. according to the described magnetic core of claim 9, it is characterized in that: said protective layer is the zirconia bisque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202809099U CN202171991U (en) | 2011-08-04 | 2011-08-04 | Sintered magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202809099U CN202171991U (en) | 2011-08-04 | 2011-08-04 | Sintered magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171991U true CN202171991U (en) | 2012-03-21 |
Family
ID=45830181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202809099U Expired - Lifetime CN202171991U (en) | 2011-08-04 | 2011-08-04 | Sintered magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171991U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794819A (en) * | 2012-07-17 | 2012-11-28 | 江苏省晶石磁性材料与器件工程技术研究有限公司 | Forming die of I-type manganese-zinc soft magnetic ferrite product |
| CN108298972A (en) * | 2018-02-24 | 2018-07-20 | 苏州世华新材料科技有限公司 | A kind of preparation method of soft magnetic ferrite sheet material |
| CN108922767A (en) * | 2018-07-17 | 2018-11-30 | 江苏佰迪凯磁性材料有限公司 | The sintering process of magnetic core |
| CN112408995A (en) * | 2020-11-26 | 2021-02-26 | 宿迁菲莱特电子制品有限公司 | Sintering process for reducing cracking of ferrite core |
| CN115863012A (en) * | 2022-12-26 | 2023-03-28 | 长兴柏成电子有限公司 | Magnetic core and sintering process thereof |
-
2011
- 2011-08-04 CN CN2011202809099U patent/CN202171991U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794819A (en) * | 2012-07-17 | 2012-11-28 | 江苏省晶石磁性材料与器件工程技术研究有限公司 | Forming die of I-type manganese-zinc soft magnetic ferrite product |
| CN108298972A (en) * | 2018-02-24 | 2018-07-20 | 苏州世华新材料科技有限公司 | A kind of preparation method of soft magnetic ferrite sheet material |
| CN108298972B (en) * | 2018-02-24 | 2019-04-12 | 苏州世华新材料科技股份有限公司 | A kind of preparation method of soft magnetic ferrite sheet material |
| CN108922767A (en) * | 2018-07-17 | 2018-11-30 | 江苏佰迪凯磁性材料有限公司 | The sintering process of magnetic core |
| CN112408995A (en) * | 2020-11-26 | 2021-02-26 | 宿迁菲莱特电子制品有限公司 | Sintering process for reducing cracking of ferrite core |
| CN115863012A (en) * | 2022-12-26 | 2023-03-28 | 长兴柏成电子有限公司 | Magnetic core and sintering process thereof |
| CN115863012B (en) * | 2022-12-26 | 2023-09-05 | 长兴柏成电子有限公司 | Magnetic core and sintering process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120321 |
|
| CX01 | Expiry of patent term |