CN207781357U - A kind of ED types magnetic ferrite magnetic core blank - Google Patents
A kind of ED types magnetic ferrite magnetic core blank Download PDFInfo
- Publication number
- CN207781357U CN207781357U CN201721902311.2U CN201721902311U CN207781357U CN 207781357 U CN207781357 U CN 207781357U CN 201721902311 U CN201721902311 U CN 201721902311U CN 207781357 U CN207781357 U CN 207781357U
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- bottom plate
- recessed portion
- equal
- rear surface
- magnetic core
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Abstract
The utility model discloses a kind of ED types magnetic ferrite magnetic core blanks, including bottom plate, it is equipped with the wrapping post of rectangle at the middle part of bottom plate front surface, the bottom plate front surface both sides parallel with wrapping post longer sides are equipped with side column, the bottom plate side parallel with wrapping post shorter edge is equipped with wire lead slot, bottom plate front surface is divided into two parts along center line, thickness positioned at wire lead slot this half is less than the other half thickness, it is equipped with the recessed portion of concave shape in the bottom plate rear surface other side opposite with wire lead slot, the length of recessed portion is equal to the length of bottom plate rear surface, the height of recessed portion is equal to the half of bottom plate rear surface width, one side edge jaggy is set among recessed portion to overlap with bottom plate rear surface center line, the recessed portion gap width is equal to the width of wrapping post, cut height is equal to the half of coiling column length.The global density of the utility model magnetic core bottom plate is uniform, to ensure the yields of magnetic core sintering circuit, improves production efficiency.
Description
Technical field
The utility model is related to magnetic core, more particularly to a kind of magnetic core blank piece.
Background technology
The sintering magnetic metal oxide that magnetic core is made of various iron oxide mixtures, in the prior art, ferrite magnetic
Core is in the coil and transformer of various electronic equipments.Wherein, ED types magnetic core has lower structure height and higher work(
Rate transmission density is the magnetic core of the current more selection of plane electronic transformer.
Present electronic product requires to improve to miniaturization and ultrathin development, to space utilization, thus on magnetic core in order to
Wire lead slot is reserved to line packet, i.e., is equipped with one recessed of trough in ED type magnetic core bottom plates side.The compacting of full-automatic dry powder press
Good magnetic core bottom plate front surface is smooth, such structure cause the bottom plate powder density of wire lead slot peripheral part just than on magnetic core its
The density of its part is big, sintering when, due to the position density cause to shrink greatly it is small, easily cause part cause product to become greatly
Shape causes rejection rate to occupy high.
Utility model content
In order to overcome drawbacks described above, the utility model to provide a kind of magnetic core blank piece, part is set at the magnetic core bottom plate back side
Recess ensures to deform when magnetic core sintering.
The utility model is achieved through the following technical solutions：
A kind of ED types magnetic ferrite magnetic core blank, including bottom plate, the middle part of bottom plate front surface be equipped with rectangle around
Terminal, the bottom plate front surface both sides parallel with wrapping post longer sides are equipped with side column, the bottom plate side parallel with wrapping post shorter edge
Equipped with wire lead slot, bottom plate front surface is divided into two parts along center line, be located at wire lead slot this half thickness be less than it is another
Half thickness is equipped with the recessed portion of concave shape in the bottom plate rear surface other side opposite with wire lead slot, and the length of recessed portion is equal to
The length of bottom plate rear surface, the height of recessed portion are equal to the half of bottom plate rear surface width, jaggy one are set among recessed portion
Lateral edges are overlapped with bottom plate rear surface center line, and the recessed portion gap width is equal to the width of wrapping post, and cut height is equal to
The half of coiling column length.
The depth of recessed portion is equal to 0.15 millimeter.
The beneficial effects of the utility model：
The utility model solves the problems, such as that the blank of the ED type magnetic cores is easily deformed in sinter molding, by the bottom of at
The recessed portion of the side setting concave shape of back thinner thickness so that the density of magnetic core powder in this section increases, in this way,
It can ensure that the global density of magnetic core bottom plate is uniform, to ensure the yields of magnetic core sintering circuit, improve production efficiency.
Description of the drawings
Fig. 1 is the utility model schematic elevation view.
Fig. 2 is the utility model schematic top plan view.
Fig. 3 is the utility model elevational schematic view.
Fig. 4 is the utility model finished product structure schematic diagram.
Specific implementation mode
In conjunction with Fig. 1 to Fig. 3, the utility model includes bottom plate 1, and the wrapping post of rectangle is equipped at the middle part of 1 front surface of bottom plate
2,1 front surface of the bottom plate both sides parallel with 2 longer sides of wrapping post are equipped with side column 3, the side parallel with 2 shorter edge of wrapping post of bottom plate 1
Side is equipped with wire lead slot 4, and 1 front surface of bottom plate is divided into two parts along center line, and the thickness positioned at 4 this half of wire lead slot is less than
The other half thickness is equipped with the recessed portion 5 of concave shape in 4 pairs of the other side of 1 rear surface of bottom plate and wire lead slot phase, recessed portion 5
Length is equal to the length of 1 rear surface of bottom plate, and the height of recessed portion 5 is equal to the half of 1 rear surface width of bottom plate, among recessed portion 5
One side edge equipped with notch 6 is overlapped with 1 rear surface center line of bottom plate, and 5 notch of the recessed portion, 6 width is equal to wrapping post 2
Width, 6 height of notch are equal to the half of 2 length of wrapping post.
The depth of recessed portion 5 is equal to 0.15 millimeter.
As shown in figure 4, when magnetic powder is after full-automatic dry powder press suppresses magnetic core blank piece, starts to be sintered, sinter
Magnetic core blank piece using grinding, the part other than 1 recessed portion 5 of bottom plate is ground off, 1 rear surface of bottom plate and recessed portion 5 are made
Surface overlaps, after grinding is smooth, as shown in figure 4, obtaining magnetic core finished product.
Claims (2)
1. a kind of ED types magnetic ferrite magnetic core blank, including bottom plate are equipped with the coiling of rectangle at the middle part of bottom plate front surface
Column, the bottom plate front surface both sides parallel with wrapping post longer sides are equipped with side column, and the bottom plate side parallel with wrapping post shorter edge is set
Leaded slot, bottom plate front surface are divided into two parts along center line, and the thickness for being located at wire lead slot this half is less than the other half
Thickness, it is characterised in that：It is equipped with the recessed portion of concave shape in the bottom plate rear surface other side opposite with wire lead slot, recessed portion
Length is equal to the length of bottom plate rear surface, and the height of recessed portion is equal to the half of bottom plate rear surface width, is equipped among recessed portion
The one side edge of notch is overlapped with bottom plate rear surface center line, and the recessed portion gap width is equal to the width of wrapping post, notch
Height is equal to the half of coiling column length.
2. a kind of ED types magnetic ferrite magnetic core blank according to claim 1, it is characterised in that：The depth of recessed portion
Equal to 0.15 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721902311.2U CN207781357U (en) | 2017-12-29 | 2017-12-29 | A kind of ED types magnetic ferrite magnetic core blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721902311.2U CN207781357U (en) | 2017-12-29 | 2017-12-29 | A kind of ED types magnetic ferrite magnetic core blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207781357U true CN207781357U (en) | 2018-08-28 |
Family
ID=63225665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721902311.2U Active CN207781357U (en) | 2017-12-29 | 2017-12-29 | A kind of ED types magnetic ferrite magnetic core blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207781357U (en) |
-
2017
- 2017-12-29 CN CN201721902311.2U patent/CN207781357U/en active Active
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