CN201796690U - Manganese zinc ferrite magnetic core for power supply transformer - Google Patents
Manganese zinc ferrite magnetic core for power supply transformer Download PDFInfo
- Publication number
- CN201796690U CN201796690U CN2010205094055U CN201020509405U CN201796690U CN 201796690 U CN201796690 U CN 201796690U CN 2010205094055 U CN2010205094055 U CN 2010205094055U CN 201020509405 U CN201020509405 U CN 201020509405U CN 201796690 U CN201796690 U CN 201796690U
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- magnetic core
- base plate
- lateral column
- magnetic
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Abstract
The utility model discloses a manganese zinc ferrite magnetic core for a power supply transformer. The magnetic core comprises a rectangular magnetic core bottom plate part, a pair of arc magnetic core side posts protruding from the bottom plate part, and a cylindrical magnetic core central post protruding from the bottom plate part between the pair of side posts, wherein the central post is positioned in the center of the bottom plate part; the side posts enclose the central post; the two side posts are symmetrical and separated from the middle; and an annular groove is formed between the side posts and the central post. The magnetic core has a simple structure and low cost, and a magnetic flux loop consists of the rectangular magnetic core bottom plate part, the arc magnetic core side posts and the cylindrical magnetic core central post, so that the effective sectional area of a magnetic circuit is increased, leakage magnetic flux and leakage inductance are reduced, the magnetic conducting efficiency and magnetic flux density are improved, the loss of the magnetic ore is reduced, and noise and external interference are reduced.
Description
Technical field
The utility model relates to a kind of magnetic core, relates in particular to a kind of power transformer manganese-zinc ferrite core.
Background technology
Along with electronic technology and fast development of information technology, Switching Power Supply is as the power unit of various electronic equipments, information equipment, require the efficient height more, cost is low, volume is little, in light weight.Switching mode power supply transformer not only needs to satisfy above-mentioned requirements as the requisite magnetic element of Switching Power Supply, also requires its performance height, disturbs little to external world.No matter be AC-DC or DC-DC power supply, main transformer, choke and other inductor (as the antinoise filter) made by magnetic ferrite magnetic core are epochmaking elements, and its magnetic property and size are directly connected to the conversion efficiency and the power density of power supply.Raise the efficiency and reduce the requirement of size, reduction weight in order to satisfy Switching Power Supply, need the magnetic core of transformer of a kind of high magnetic flux density and high-frequency low-consumption.
The utility model content
At above defective, the utility model provides a kind of power transformer manganese-zinc ferrite core.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of power transformer manganese-zinc ferrite core, comprise rectangular magnetic core base plate, from the outstanding a pair of arc magnetic core lateral column of base plate, from the outstanding cylinder shape magnetic core newel of the base plate between a pair of lateral column, newel is positioned at the position at base plate center, lateral column is around the newel setting, lateral column is two symmetries, separately middle, form cannelure between lateral column and the newel.The diameter of cylindrical center post is more than 50% of rectangle base plate width; A pair of arc lateral column with the perpendicular direction of the subtend direction of lateral column on length greater than the width of rectangle base plate; Lateral column one end aligns with the rectangle base plate, and the other end stretches out the rectangle base plate; A pair of arc lateral column stretches out the width of part of rectangle base plate greater than the width of the part of aliging with the rectangle base plate.
The utility model is simple in structure, cost is low, form flux circuit by rectangle magnetic core base plate, arc magnetic core lateral column and cylinder shape magnetic core newel, increased the net sectional area of magnetic circuit, reduce leakage field and leakage inductance, improved magnetic conduction efficient, improved magnetic flux density, reduce core loss, reduced noise and interference to external world.
Description of drawings
Fig. 1 is the front view of a kind of power transformer with manganese-zinc ferrite core;
Fig. 2 is the end view of a kind of power transformer with manganese-zinc ferrite core.
Embodiment
According to embodiment and accompanying drawing the utility model is described in further detail below.
Shown in Fig. 1-2, a kind of power transformer manganese-zinc ferrite core, comprise rectangular magnetic core base plate 1, from the outstanding a pair of arc magnetic core lateral column 2 of base plate, from the outstanding cylinder shape magnetic core newel 3 of the base plate between a pair of lateral column, newel 3 is positioned at the position at base plate 1 center, lateral column 2 is provided with around newel 3, lateral column 2 is two symmetries, and is separately middle, forms cannelure between lateral column 2 and the newel 3.The diameter of cylindrical center post 3 is more than 50% of rectangle base plate 1 width; A pair of arc lateral column 2 with the perpendicular direction of the subtend direction of lateral column on length greater than the width of rectangle base plate 1; Lateral column 2 one ends align with rectangle base plate 1, and the other end stretches out rectangle base plate 1; A pair of arc lateral column 2 stretches out the width of part of rectangle base plate 1 greater than the width of the part of aliging with rectangle base plate 1.
The utility model is simple in structure, cost is low, form flux circuit by rectangle magnetic core base plate 1, arc magnetic core lateral column 2 and cylinder shape magnetic core newel 3, increased the net sectional area of magnetic circuit, reduce leakage field and leakage inductance, improved magnetic conduction efficient, improved magnetic flux density, reduce core loss, reduced noise and interference to external world.
Claims (3)
1. power transformer manganese-zinc ferrite core, it is characterized in that, comprise rectangular magnetic core base plate, from the outstanding a pair of arc magnetic core lateral column of base plate, from the outstanding cylinder shape magnetic core newel of the base plate between a pair of lateral column, it is characterized in that, newel is positioned at the position at base plate center, and lateral column is around the newel setting, and lateral column is two symmetries, separately middle, form cannelure between lateral column and the newel.
2. a kind of power transformer manganese-zinc ferrite core according to claim 1 is characterized in that, the diameter of cylindrical center post is more than 50% of rectangle base plate width.
3. a kind of power transformer manganese-zinc ferrite core according to claim 1 is characterized in that, a pair of arc lateral column with the perpendicular direction of the subtend direction of lateral column on length greater than the width of rectangle base plate; Lateral column one end aligns with the rectangle base plate, and the other end stretches out the rectangle base plate; A pair of arc lateral column stretches out the width of part of rectangle base plate greater than the width of the part of aliging with the rectangle base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205094055U CN201796690U (en) | 2010-08-30 | 2010-08-30 | Manganese zinc ferrite magnetic core for power supply transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205094055U CN201796690U (en) | 2010-08-30 | 2010-08-30 | Manganese zinc ferrite magnetic core for power supply transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201796690U true CN201796690U (en) | 2011-04-13 |
Family
ID=43851592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205094055U Expired - Fee Related CN201796690U (en) | 2010-08-30 | 2010-08-30 | Manganese zinc ferrite magnetic core for power supply transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201796690U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709029A (en) * | 2012-01-31 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Ferrite magnetic core |
| CN102709027A (en) * | 2012-02-01 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Manganese-zinc ferrite magnetic core |
| CN103943299A (en) * | 2014-04-21 | 2014-07-23 | 山东嘉诺电子有限公司 | Wide-temperature high-quality factor Q value low-power-consumption magnetic core |
-
2010
- 2010-08-30 CN CN2010205094055U patent/CN201796690U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709029A (en) * | 2012-01-31 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Ferrite magnetic core |
| CN102709027A (en) * | 2012-02-01 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Manganese-zinc ferrite magnetic core |
| CN103943299A (en) * | 2014-04-21 | 2014-07-23 | 山东嘉诺电子有限公司 | Wide-temperature high-quality factor Q value low-power-consumption magnetic core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20120830 |