CN203850105U - Low-loss magnetic core - Google Patents
Low-loss magnetic core Download PDFInfo
- Publication number
- CN203850105U CN203850105U CN201420124895.5U CN201420124895U CN203850105U CN 203850105 U CN203850105 U CN 203850105U CN 201420124895 U CN201420124895 U CN 201420124895U CN 203850105 U CN203850105 U CN 203850105U
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- China
- Prior art keywords
- magnetic core
- core body
- hole
- low loss
- loss
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- Expired - Lifetime
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- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model discloses a low-loss magnetic core. The low-loss magnetic core comprises a cylindrical magnetic core body, in which a communicating structure is formed vertically. The communicating structure comprises two through holes arranged adjacently and of similar profiles. The cylindrical magnetic core body is further provided with multiple L-shaped loss-reducing through holes. An opening at one end of each L-shaped loss-reducing through hole is disposed at the top wall or the bottom wall of the magnetic core body and the other end of each through hole is disposed at the side wall of the magnetic core body. The low-loss magnetic core has following beneficial effects: by an ingenious improvement on the structure of the magnetic core, volume power consumption value in a temperature area of 100 KHz, 200mT and 30-100 degrees is below 260 KW/m3; with increase in ambient temperature, a power consumption curve remains smooth and steady; and therefore the magnetic core is more stable and brilliant in performance during operation and has a bright market prospect.
Description
Technical field
The utility model relates to a kind of magnetic core, is specifically related to a kind of magnetic core with low loss.
Background technology
Magnetic core is the magnetic elements being widely used in the products such as transformer, electricity-saving lamp, fast development along with electronics industry, the size of magnetic core product develops to miniaturization, but the performance requirement to magnetic core is but more and more higher, because loss is that magnetic core in use inevitably exists, so, thereby how to reduce the wastage improve the capacity usage ratio of unit volume, the high performance requirements that meets small size magnetic core is the trend of the times in market.
Utility model content
For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of low-loss magnetic core.
In order to realize above-mentioned target, the utility model adopts following technical scheme:
Magnetic core with low loss, comprise columniform magnetic core body, described magnetic core body be longitudinally formed with communicating structure, described communicating structure comprises the through hole that the shape of two adjacent settings is similar, described magnetic core body is also formed with several L-types and falls damage through hole, and described L-type is fallen and damaged through hole wherein one end perforate is positioned at the roof of magnetic core body or diapire, other end through hole is positioned on the sidewall of magnetic core body.
Aforementioned communicating structure is day font or 8-shaped.
The cross-sectional area of aforementioned communicating structure is not more than 1/2nd of magnetic core body cross-section area.
Aforementioned L-type falls that to damage through hole be two, about the axis of magnetic core body, be symmetrical arranged, L-type fall the minor face that damages through hole be parallel to magnetic core body radially, long limit be parallel to magnetic core body axially.
The length that the long limit of damaging through hole falls in aforementioned L-type surpasses 1/2nd of magnetic core body height.
The sectional area that damage through hole falls in aforementioned L-type is the 1/5-1/3 of through hole sectional area.
Aforementioned magnetic core is made by ferrite.
Usefulness of the present utility model is: magnetic core of the present utility model, by structure is carried out to ingenious improvement, volume power consumption number in 100KHz, 200mT, 30-100 ℃ temperature province is all below 260kW/m3, and the raising along with ambient temperature, power consumption curve is steady, thereby magnetic core of the present utility model performance in use stablizes superiorly more, there are good market prospects.
Accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of magnetic core with low loss of the present utility model;
Fig. 2 is the structural representation of another specific embodiment of magnetic core with low loss of the present utility model.
The implication of Reference numeral in figure: 1, magnetic core body, 2, communicating structure, 3, damage through hole falls in L-type.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is done to concrete introduction.
Referring to Fig. 1 and Fig. 2, magnetic core with low loss of the present utility model, is preferably made by ferrite, comprises columniform magnetic core body 1, at magnetic core body 1, is longitudinally formed with communicating structure 2.Particularly, communicating structure 2 comprises the through hole that the shape of two adjacent settings is similar, and the 8-shaped of day shown in font or Fig. 2 than as shown in Figure 1, certainly, is not limited in this two kinds of structures.
Further, magnetic core body 1 is also formed with several L-types and falls damage through hole, and L-type is fallen and damaged through hole 3 wherein one end perforate is positioned at the roof of magnetic core body 1 or diapire, other end through hole is positioned on the sidewall of magnetic core body 1.
As a kind of preferred, the cross-sectional area of communicating structure 2 is not more than 1/2nd of magnetic core body 1 cross-sectional area.
As depicted in figs. 1 and 2, L-type falls that to damage through hole 3 be two, about the axis of magnetic core body 1, be symmetrical arranged, L-type fall the minor face that damages through hole 3 be parallel to magnetic core body 1 radially, long limit be parallel to magnetic core body 1 axially.Preferably, the length that the long limit of damaging through hole 3 falls in L-type is over 1/2nd of magnetic core body 1 height.And the sectional area that damage through hole 3 falls in L-type is the 1/5-1/3 of through hole sectional area.Such structural design is the most rational, studies have shown that the magnetic core of this structure falls that to damage effect quite remarkable.Magnetic core of the present utility model is carried out to loss test below, and compare with commercial same specification product, test condition is 100KHz, 200mT, 30-100 ℃ temperature province, and test result is in Table 1.
| Temperature (℃) | 30 | 45 | 60 | 75 | 100 |
| The volume power consumption (kW/m3) of magnetic core of the present utility model | 243 | 251 | 248 | 257 | 258 |
| The volume power consumption (kW/m3) of commercial magnetic core | 360 | 372 | 380 | 391 | 402 |
The volume power consumption contrast of table 1 the utility model and commercial magnetic core
From table 1, core volume power consumption of the present utility model is significantly less than commercial same specification magnetic core, and along with the rising of ambient temperature, power consumption curve is steady, and magnetic core in use performance is stablized superior more.
More than show and described basic principle of the present utility model, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the utility model in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection range of the present utility model.
Claims (7)
1. magnetic core with low loss, it is characterized in that, comprise columniform magnetic core body, described magnetic core body be longitudinally formed with communicating structure, described communicating structure comprises the through hole that the shape of two adjacent settings is similar, described magnetic core body is also formed with several L-types and falls damage through hole, and described L-type is fallen and damaged through hole wherein one end perforate is positioned at the roof of magnetic core body or diapire, other end through hole is positioned on the sidewall of magnetic core body.
2. magnetic core with low loss according to claim 1, is characterized in that, described communicating structure is day font or 8-shaped.
3. magnetic core with low loss according to claim 2, is characterized in that, the cross-sectional area of described communicating structure is not more than 1/2nd of magnetic core body cross-section area.
4. magnetic core with low loss according to claim 3, is characterized in that, described L-type falls that to damage through hole be two, about the axis of magnetic core body, be symmetrical arranged, L-type fall the minor face that damages through hole be parallel to magnetic core body radially, long limit be parallel to magnetic core body axially.
5. magnetic core with low loss according to claim 4, is characterized in that, the length that the long limit of damaging through hole falls in described L-type surpasses 1/2nd of magnetic core body height.
6. according to the magnetic core with low loss described in claim 1-5 any one, it is characterized in that, the sectional area that damage through hole falls in described L-type is the 1/5-1/3 of through hole sectional area.
7. magnetic core with low loss according to claim 6, is characterized in that, described magnetic core is made by ferrite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420124895.5U CN203850105U (en) | 2014-03-19 | 2014-03-19 | Low-loss magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420124895.5U CN203850105U (en) | 2014-03-19 | 2014-03-19 | Low-loss magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850105U true CN203850105U (en) | 2014-09-24 |
Family
ID=51563090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420124895.5U Expired - Lifetime CN203850105U (en) | 2014-03-19 | 2014-03-19 | Low-loss magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943324A (en) * | 2014-03-19 | 2014-07-23 | 鸿康磁业电子（昆山）有限公司 | Low-loss magnetic core |
-
2014
- 2014-03-19 CN CN201420124895.5U patent/CN203850105U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943324A (en) * | 2014-03-19 | 2014-07-23 | 鸿康磁业电子（昆山）有限公司 | Low-loss magnetic core |
| CN103943324B (en) * | 2014-03-19 | 2016-03-09 | 鸿康磁业电子（昆山）有限公司 | Magnetic core with low loss |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |