CN204204578U - Transformer and E-shaped magnetic core thereof - Google Patents
Transformer and E-shaped magnetic core thereof Download PDFInfo
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- CN204204578U CN204204578U CN201420717261.0U CN201420717261U CN204204578U CN 204204578 U CN204204578 U CN 204204578U CN 201420717261 U CN201420717261 U CN 201420717261U CN 204204578 U CN204204578 U CN 204204578U
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- center pillar
- magnetic core
- type magnetic
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- limit pin
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- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 239000011162 core material Substances 0.000 description 68
- 239000000463 material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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Abstract
The utility model provides a transformer and E type magnetic core thereof, this E type magnetic core include the core and set up the center pillar on the core, and the cross section of center pillar is oval. In the utility model, the cross section of the center pillar of the E-shaped magnetic core is oval, so that the installation of the framework corresponding to the E-shaped magnetic core is easier to fix and not easy to slip in process than the framework corresponding to the E-shaped magnetic core of the cylindrical center pillar, and the framework is easier to support on the center pillar; the window area of the E-shaped core assembly formed by the elliptical center pillar is larger than that of the circular center pillar, which has the same cross-sectional area. The utility model discloses simple structure, installation are reliable, can fix the skeleton more steadily, have improved the production efficiency of the transformer that adopts this E type magnetic core.
Description
Technical field
The utility model relates to transformation field, in particular to a kind of transformer and E-type magnetic core thereof.
Background technology
At present, E-type magnetic core makes the chief component of high frequency transformer, existing E-type magnetic core, and be generally made up of the core body of strip, top pin, below pin, center pillar, core body connects with by upper following pin and center pillar, and center pillar is positioned at the centre position of core body.Upper and lower limit pin is square column, and center pillar is square column or cylinder.
But, the equal existing defects of E-type magnetic core of the prior art, as:
There is following defect in circular center pillar magnetic core:
(1) based on center pillar be the magnetic core of same sectional area, the center pillar of circular cross-section makes the area of the window of E-type magnetic core assembly reduce; (2) center because installing skeleton corresponding to this E-type magnetic core for circular, must be not easy to fix, make winding efficiency lower in coiling makes.
There is following defect in square center pillar magnetic core:
(1) middle column body of same sectional area, can consume more E-type magnetic core material and wire material;
(2) there is the risk destroying winding wire insulation in the corner angle of square center pillar when coiling;
(3) switching circuit that inapplicable frequency is higher.
Utility model content
Main purpose of the present utility model is to provide a kind of transformer and E-type magnetic core thereof, to solve the lower problem of E-type magnetic core winding efficiency of the prior art.
To achieve these goals, according to an aspect of the present utility model, provide a kind of E-type magnetic core, comprise core body and be arranged on the center pillar on core body, the cross section of center pillar is oval.
Further, E-type magnetic core also comprises: the first limit pin, and the first limit pin is arranged on the first end of the bearing of trend of core body; Second Edge pin, Second Edge pin is arranged on the second end of the bearing of trend of core body; Wherein, the first limit pin, Second Edge pin and center pillar are arranged abreast.
Further, the side of the close center pillar of the first limit pin is arcs of recesses, and the side of the close center pillar of Second Edge pin is arcs of recesses.
Further, the side of the close center pillar of the first limit pin and Second Edge pin is elliptical arc surface.
Further, the major semiaxis of the elliptical arc surface on the first limit pin is all equal with the major semiaxis in the elliptical periphery face of center pillar with the major semiaxis of the elliptical arc surface on Second Edge pin.
Further, the first limit pin is identical with the distance between Second Edge pin and center pillar with the distance between center pillar.
Further, the first limit pin, Second Edge pin and center pillar are all perpendicular to core body.
Further, the first limit pin, Second Edge pin and center pillar are all positioned at the same side of core body.
Further, center pillar is hollow structure.
According to another aspect of the present utility model, provide a kind of transformer, comprise E-type magnetic core and be arranged on the skeleton on the center pillar of E-type magnetic core, E-type magnetic core is above-mentioned E-type magnetic core.
In the utility model, the cross section of the center pillar of E-type magnetic core is oval, and like this, install the skeleton corresponding with this E-type magnetic core skeleton more corresponding than the E-type magnetic core of cylindrical center pillar and be easy to fix, not easily skid in technique, skeleton is easier to be supported on this center pillar; Further, same sectional area, the window area of the E-type magnetic core assembly adopting oval center pillar to be formed than circular center pillar is larger.
The utility model structure is simple, installation is reliable, can fix skeleton more stablely, improves the production efficiency of the transformer adopting this E-type magnetic core.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of E-type magnetic core of the present utility model;
Fig. 2 shows the end view of Fig. 1; And
Fig. 3 shows the assembling schematic diagram of E-type magnetic core.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, core body; 20, center pillar; 30, the first limit pin; 40, Second Edge pin.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
According to an aspect of the present utility model, provide a kind of E-type magnetic core, please refer to Fig. 1 to Fig. 3, the center pillar 20 that this E-type magnetic core comprises core body 10 and is arranged on core body 10, the cross section of center pillar 20 is oval.
In the utility model, the cross section of the center pillar 20 of E-type magnetic core is oval, like this, install the E-type magnetic core of the skeleton corresponding with this E-type magnetic core than cylindrical center pillar and be easy to fix, not easily skid on corresponding framework process, skeleton is easier to be supported on this center pillar 20; Further, same sectional area, the window area of the E-type magnetic core assembly adopting oval center pillar to be formed than circular center pillar is larger.
The utility model structure is simple, installation is reliable, can fix skeleton more stablely, improves the production efficiency of the transformer adopting this E-type magnetic core.
Preferably, E-type magnetic core also comprises: the first limit pin 30, first limit pin 30 is arranged on the first end of the bearing of trend of core body 10; Second Edge pin 40, Second Edge pin 40 is arranged on the second end of the bearing of trend of core body 10; Wherein, the first limit pin 30, Second Edge pin 40 and center pillar 20 are arranged abreast.
In this application, core body 10, first limit pin 30, Second Edge pin 40 and center pillar 20 are made by MnZn ferrite material.
Preferably, the side of the close center pillar 20 of the first limit pin 30 is arcs of recesses, and the side of the close center pillar 20 of Second Edge pin 40 is arcs of recesses.Like this, improve effective permeability, increase window area.
Preferably, the side of the close center pillar 20 of the first limit pin 30 and Second Edge pin 40 is elliptical arc surface.
In this application, center pillar 20 is elliptic cylindrical and is in same axis with the first limit pin 30, Second Edge pin 40, and the inner edge of the first limit pin 30, Second Edge pin 40 is the elliptic arc with center pillar 20 concentric.Preferably, the width of the first limit pin 30 and Second Edge pin 40 is equal with the major axis of the elliptic cross-section of center pillar 20.
The inner edge of the first limit pin 30 and Second Edge pin 40 is the elliptic arc with center pillar 20 concentric, and center pillar 20 is elliptic cylindrical.Like this, there is the frequency being suitable for current process, more wide region, strong interference immunity, save material, reduce leakage field, increase the advantages such as the simple and cost of manufacture of magnetic flux, structure is low.
Preferably, the major semiaxis of the elliptical arc surface on the first limit pin 30 is all equal with the major semiaxis in the elliptical periphery face of center pillar 20 with the major semiaxis of the elliptical arc surface on Second Edge pin 40.
Preferably, the first limit pin 30 is identical with the distance between Second Edge pin 40 and center pillar 20 with the distance between center pillar 20.
This E-type magnetic core is made up of core body 10, the first limit pin 30 of strip, Second Edge pin 40 and center pillar 20, and upper following pin connects by core body 10, and center pillar 20 is positioned at the centre position of core body 10.
Preferably, the first limit pin 30, Second Edge pin 40 and center pillar 20 are all perpendicular to core body 10.
Preferably, the first limit pin 30, Second Edge pin 40 and center pillar 20 are all positioned at the same side of core body 10.
Preferably, center pillar 20 is hollow structure.
According to another aspect of the present utility model, provide a kind of transformer, comprise E-type magnetic core and be arranged on the skeleton on the center pillar of E-type magnetic core, E-type magnetic core is above-mentioned E-type magnetic core.
As depicted in figs. 1 and 2, a kind of E-type magnetic core, comprise the core body 10 that shape is cuboid, described core body 10 and the first limit pin 30 be connected, Second Edge pin 40 are vertical, E-type magnetic core center pillar 20 be positioned in the middle part of described core body 10 with the first limit pin 30, position, Second Edge pin 40 the same side.
Window area is Q=(E-D) * F, and be directly proportional to magnetic flux by window area, interface is circular middle column diameter is D, and the short diameter of center pillar of the identical ellipse of sectional area is less than D, so the Q value of oval center pillar is greater than the Q value of circular center pillar, therefore, to compare circular center pillar larger for magnetic flux.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect:
(1) skeleton installing skeleton corresponding to this E-type magnetic core more corresponding than cylindrical center pillar E-type magnetic core is easy to fix, not easily skid in technique;
(2) same sectional area, the window area adopting oval center pillar to be formed than circular center pillar is large;
(3) the limit pin shape of this E-type magnetic core has the interference of better EMI suppression and magnetic screening action;
(4) improve the production efficiency of the transformer adopting this E-type magnetic core;
(5) compared to square column E-type magnetic core, save more than 10% material (being drawn by the ellipse of same sectional area and square contrast girth) and have more antijamming capability.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. an E-type magnetic core, comprises core body (10) and is arranged on the center pillar (20) on described core body (10), it is characterized in that, the cross section of described center pillar (20) is oval.
2. E-type magnetic core according to claim 1, is characterized in that, described E-type magnetic core also comprises:
First limit pin (30), described first limit pin (30) is arranged on the first end of the bearing of trend of described core body (10);
Second Edge pin (40), described Second Edge pin (40) is arranged on the second end of the bearing of trend of described core body (10);
Wherein, described first limit pin (30), described Second Edge pin (40) and described center pillar (20) are arranged abreast.
3. E-type magnetic core according to claim 2, it is characterized in that, the side of the close described center pillar (20) of described first limit pin (30) is arcs of recesses, and the side of the close described center pillar (20) of described Second Edge pin (40) is arcs of recesses.
4. E-type magnetic core according to claim 3, is characterized in that, the side of the close described center pillar (20) of described first limit pin (30) and described Second Edge pin (40) is elliptical arc surface.
5. E-type magnetic core according to claim 4, it is characterized in that, the major semiaxis of the elliptical arc surface on described first limit pin (30) is all equal with the major semiaxis in the elliptical periphery face of described center pillar (20) with the major semiaxis of the elliptical arc surface on described Second Edge pin (40).
6. E-type magnetic core according to claim 2, it is characterized in that, described first limit pin (30) is identical with the distance between described Second Edge pin (40) and described center pillar (20) with the distance between described center pillar (20).
7. E-type magnetic core according to claim 2, is characterized in that, described first limit pin (30), described Second Edge pin (40) and described center pillar (20) are all perpendicular to described core body (10).
8. E-type magnetic core according to claim 2, is characterized in that, described first limit pin (30), described Second Edge pin (40) and described center pillar (20) are all positioned at the same side of described core body (10).
9. E-type magnetic core according to claim 2, is characterized in that, described center pillar (20) is hollow structure.
10. a transformer, comprises E-type magnetic core and is arranged on the skeleton on the center pillar of described E-type magnetic core, it is characterized in that, the E-type magnetic core of described E-type magnetic core according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420717261.0U CN204204578U (en) | 2014-11-24 | 2014-11-24 | Transformer and E-shaped magnetic core thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420717261.0U CN204204578U (en) | 2014-11-24 | 2014-11-24 | Transformer and E-shaped magnetic core thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204578U true CN204204578U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420717261.0U Expired - Fee Related CN204204578U (en) | 2014-11-24 | 2014-11-24 | Transformer and E-shaped magnetic core thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204204578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933026A (en) * | 2018-06-19 | 2018-12-04 | 覃源滔 | M-shaped magnetic core and structure matched with same |
-
2014
- 2014-11-24 CN CN201420717261.0U patent/CN204204578U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933026A (en) * | 2018-06-19 | 2018-12-04 | 覃源滔 | M-shaped magnetic core and structure matched with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 |