CN208570284U - A kind of E shape magnetic core - Google Patents

Abstract

The utility model discloses a kind of E shape magnetic core, constitutes E shape structure by pedestal, the first convex block, the second convex block and intermediate convex block；The width of pedestal is greater than the width of the first convex block, the second convex block and intermediate convex block, and the width of intermediate convex block is greater than the width of the first convex block and the second convex block, and the width of the first convex block and the second convex block is equal, is easily installed winding bobbin and coiling；The middle of the base is provided with a groove, the end face of the bottom surface of groove and intermediate convex block, pedestal, the first convex block, the second convex block, intermediate convex block and groove are disposed as rounding corner structure, and the angle on groove both sides is 55-60 degree, so that magnetic core is convenient for demoulding in the production process, bonding is reduced.The utility model structure is simple, small in size, high-efficient, stable and reliable for performance, is suitable for promoting the use of.

Description

A kind of E shape magnetic core

Technical field

The utility model relates to a kind of electronic device more particularly to a kind of E shape magnetic cores.

Background technique

Magnetic core refers to a kind of sintering magnetic metal oxide being made of the mixture of various iron oxide, is widely used in each In the coil and transformer of kind electronic equipment.

With the fast development of electronic product, the requirement to each electronic component is higher and higher, on the one hand requires electronics first Device meets the normal work of itself, and electronic component is on the other hand required not generate shadow to other electronic components at work It rings, namely what is often called EMI electromagnetic interference, therefore, filter comes into being, will be this using more for common mode inductance filter Filter circuit one terminates interference source, another to terminate disturbed equipment, can not only inhibit external EMI signal to be passed to, but also can decline Subtract the EMI signal generated when route itself work, EMI interference strength can be effectively reduced, magnetic core used in this common mode inductance is more Number is annular, ET shape, UT shape, and it is inconvenient to install when being used cooperatively with winding bobbin.

Utility model content

The utility model provides a kind of E shape magnetic core, to solve to install not when existing E shape magnetic core and winding bobbin are used cooperatively Convenient problem.

A kind of E shape magnetic core provided by the utility model constitutes E shape by pedestal, the first convex block, the second convex block and intermediate convex block Structure；

The width of the pedestal is greater than the width of first convex block, the second convex block and intermediate convex block, the intermediate convex block Width be greater than the width of first convex block and the second convex block, first convex block is equal with the width of the second convex block；

The middle of the base is provided with a groove, and the end face of the bottom surface of the groove and the intermediate convex block is described Pedestal, the first convex block, the second convex block, intermediate convex block and groove are disposed as rounding corner structure, and the angle on the groove both sides is 55-60 degree.

One embodiment according to the present utility model, the width of the pedestal are 8.6-9.0mm.

One embodiment according to the present utility model, the width of first convex block are 6.15-6.55mm.

One embodiment according to the present utility model, the depth of the groove are 0.4-0.5mm.

One embodiment according to the present utility model, distance is 9.4- between first convex block and second convex block 9.85mm。

One embodiment according to the present utility model, the magnetic core are made by soft magnet powder soma is molded.

A kind of E shape magnetic core provided by the utility model constitutes E shape by pedestal, the first convex block, the second convex block and intermediate convex block Structure；The width of pedestal is greater than the width of the first convex block, the second convex block and intermediate convex block, and it is convex that the width of intermediate convex block is greater than first The width of the width of block and the second convex block, the first convex block and the second convex block is equal, is easily installed winding bobbin and coiling；Pedestal Middle part is provided with a groove, and the end face of the bottom surface of groove and intermediate convex block, pedestal, the first convex block, the second convex block, centre are convex Block and groove are disposed as rounding corner structure, and the angle on groove both sides is 60-65 degree, so that magnetic core is convenient for taking off in the production process Mould reduces bonding.The utility model structure is simple, small in size, high-efficient, stable and reliable for performance, is suitable for promoting the use of.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of E shape magnetic core provided by the embodiment of the utility model；

Fig. 2 is the right view of Fig. 1.

Figure label are as follows:

1- pedestal, the first convex block of 2-, the second convex block of 3-, the centre 4- convex block, 5- groove.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and examples.

Referring to Fig. 1 and Fig. 2, a kind of structural schematic diagram of E shape magnetic core respectively provided by the embodiment of the utility model and the right side View, the E shape magnetic core are made of E shape structure pedestal 1, the first convex block 2, the second convex block 3 and intermediate convex block 4, the first convex block 2 and the The width of two convex blocks 3 is equal, the width E of pedestal 1 be greater than the first convex block 2 and the second convex block 3 width D and intermediate convex block 4 Width, the width of intermediate convex block 4 are greater than the width D of the first convex block 2 and the second convex block 3, are easily installed winding bobbin and coiling.

The middle part setting of pedestal 1 is by a groove 5, the end face of the bottom surface of groove 5 and intermediate convex block 4, pedestal 1, first Convex block 2, the second convex block 3, intermediate convex block 4 and groove 5 are disposed as rounding corner structure, and the angle theta on 5 both sides of groove is 60-65 degree, So that magnetic core is convenient for demoulding in the production process, bonding is reduced.

In specific implementation process, the width E of pedestal 1 is set as 8.6-9.0mm, the width of the first convex block 2 and the second convex block 3 D is 6.15-6.55mm, and the depth of groove 5 is 0.4-0.5mm, and the distance between the first convex block 2 and the second convex block 3 are 9.4- 9.85mm。

Embodiment 1

Pass through dry-pressing formed production E shape magnetic provided by the embodiment of the utility model using soft magnetism powder according to following size The heart.

The length A:16.5mm of pedestal 1,

The height B:7.0mm of pedestal 1,

The height C:4.0mm of first convex block 2 and the second convex block 3,

The width D of first convex block 2 and the second convex block 3: 6.35mm,

The width E:8.8mm of pedestal 1,

The distance between first convex block 2 and the second convex block 3 F:9.6mm,

The width G of intermediate convex block 4: 2.7mm,

The depth of groove 5: 0.5mm,

The angle theta on 5 both sides of groove: 60 degree.

The utility model is by the improvement to existing magnetic core in structure snd size, so that the magnetic core is applied to filter When, volume is obviously reduced under conditions of meeting performance requirement, and efficiency significantly increases, and stable and reliable for performance, is effectively dropped Low production cost and cost of manufacture are suitable for promoting the use of.

Above-described specific embodiment of the present utility model does not constitute the restriction to scope of protection of the utility model.

Claims (6)

1. a kind of E shape magnetic core, which is characterized in that the magnetic core is by pedestal (1), the first convex block (2), the second convex block (3) and centre Convex block (4) constitutes E shape structure；

The width of the pedestal (1) is greater than the width of first convex block (2), the second convex block (3) and intermediate convex block (4), described The width of intermediate convex block (4) is greater than the width of first convex block (2) and the second convex block (3), first convex block (2) and second The width of convex block (3) is equal；

It is provided with a groove (5) in the middle part of the pedestal (1), the bottom surface of the groove (5) and the end face of the intermediate convex block (4) are neat Flat, the pedestal (1), the first convex block (2), the second convex block (3), intermediate convex block (4) and groove (5) are disposed as rounded corner knot The angle of structure, groove (5) both sides is 60-65 degree.

2. E shape magnetic core according to claim 1, which is characterized in that the width of the pedestal (1) is 8.6-9.0mm.

3. E shape magnetic core according to claim 2, which is characterized in that the width of first convex block (2) is 6.15- 6.55mm。

4. E shape magnetic core according to claim 3, which is characterized in that the depth of the groove (5) is 0.4-0.5mm.

5. E shape magnetic core according to claim 4, which is characterized in that first convex block (2) and second convex block (3) Between distance be 9.4-9.85mm.

6. E shape magnetic core according to claim 1-5, which is characterized in that the magnetic core is pressed by soft magnet powder soma Type is made.