CN204011008U - Chip inductor - Google Patents
Chip inductor Download PDFInfo
- Publication number
- CN204011008U CN204011008U CN201420367914.7U CN201420367914U CN204011008U CN 204011008 U CN204011008 U CN 204011008U CN 201420367914 U CN201420367914 U CN 201420367914U CN 204011008 U CN204011008 U CN 204011008U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- drum
- shield panel
- bobbin
- magnetic shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of chip inductor, comprise coil, bobbin, magnetic shield panel, drum-shaped magnetic core and electrode, drum-shaped magnetic core is two, lay respectively at the two ends of bobbin, coil winding is in the periphery of bobbin, electrode is two lower ends that lay respectively at two drum-shaped magnetic cores, and the two ends of coil are connected with two electrodes respectively, and the two ends of magnetic shield panel are with two drum-shaped magnetic cores respectively that bridge shape is bonding to be connected.The utility model has formed the closed magnetic circuit that enters people the opposing party's flange by the magnetic flux of magnetic core from a side flange through magnetic shield panel, can effectively prevent the generation of the noise of following flux leakage.Therefore, the utility model can provide can effectively prevent magnetic leakage and DC superposition characteristic superior, the chip inductor that is conducive to miniaturization or slimming.
Description
Technical field
The utility model relates to a kind of inductor, relates in particular to a kind of chip inductor.
Background technology
In recent years, along with the miniaturization of the electronic instrument taking pocket telephone, notebook-PC etc. as representative and the propelling of slimming, also miniaturization and the slimming of an urgent demand surperficial mounting piece formula inductor of the larger volume of occupation ratio in the electronic component that is equipped on circuit board.
Other coil parts that thin inductance device of the prior art has leakage flux and adjacency bring disaster upon the danger of closing.In view of such problem, known has, by the resin of ferrimagnetism powder and mixed with resin one ferrite compound die magnetic shield panel, because magnetic screen portion adopts in the situation of resin iron oxysome compound die material, due to the restriction on material forming, can not form extremely thin magnetic screen portion.Therefore, be difficult to respond the requirement of chip inductor miniaturization or slimming; In addition, because the raising that has adopted ferrite exists limit, be difficult to make saturation flux density to increase, thereby there is limit in the raising of DC superposition characteristic.
Summary of the invention
The purpose of this utility model is just to provide in order to address the above problem a kind of chip inductor.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises coil, bobbin, magnetic shield panel, drum-shaped magnetic core and electrode, described drum-shaped magnetic core is two, lay respectively at the two ends of described bobbin, described coil winding is in the periphery of described bobbin, described electrode is two lower ends that lay respectively at two described drum-shaped magnetic cores, the two ends of described coil are connected with two described electrodes respectively, and the two ends of described magnetic shield panel are with two described drum-shaped magnetic cores respectively that bridge shape is bonding to be connected.
Particularly, described magnetic shield panel is that resin material solidified iron is the plate-shaped member that noncrystalline powder forms.
The beneficial effects of the utility model are:
The utility model has formed the closed magnetic circuit that enters people the opposing party's flange by the magnetic flux of magnetic core from a side flange through magnetic shield panel, can effectively prevent the generation of the noise of following flux leakage.Therefore, the utility model can provide can effectively prevent magnetic leakage and DC superposition characteristic superior, the chip inductor that is conducive to miniaturization or slimming.
Brief description of the drawings
Accompanying drawing is structural representation of the present utility model.
In figure: 1-coil, 2-bobbin, 3-magnetic shield panel, 4-drum-shaped magnetic core, 5-electrode.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in drawings: the utility model comprises coil 1, bobbin 2, magnetic shield panel 3, drum-shaped magnetic core 4 and electrode 5, drum-shaped magnetic core 4 is two, lay respectively at the two ends of bobbin 2, coil 1 is wound in the periphery of bobbin 2, electrode 5 is two lower ends that lay respectively at two drum-shaped magnetic cores 4, the two ends of coil 1 are connected with two electrodes 5 respectively, and the two ends of magnetic shield panel 3 are with two drum-shaped magnetic cores 4 respectively that bridge shape is bonding to be connected.Magnetic shield panel 3 for resin material solidified iron be the plate-shaped member that noncrystalline powder forms.
As shown in drawings: the utility model has formed the closed magnetic circuit that enters people the opposing party's flange by the magnetic flux of magnetic core from a side flange through magnetic shield panel 3, can effectively prevent the generation of the noise of following flux leakage.In addition, due to contain iron be noncrystalline powder plate member and adopted the plate member of ferrite powder to compare, the restriction in shaping is little, therefore, can compare unfertile land be shaped.On this basis, contain iron and be the plate member of noncrystalline powder and adopted the plate member of ferrite powder to compare, its saturation flux density is large.Therefore,, even be that the thickness of the plate member of noncrystalline powder forms very thinly by containing iron, be also difficult to magnetic saturation.
As shown in drawings: it is that the iron that the nanocrystal below 10nm forms is the structure of noncrystalline powder by mean particle diameter that magnetic shield panel 3 has by hardening of resin.Like this, because magnetic shield panel 3 is that iron is the composite material of noncrystalline powder and resin, therefore, there is pliability as slab integral.The saturation flux density of magnetic shield panel 3, people is in the saturation flux density of the drum-shaped magnetic core 4 comparing with same volume far away.Therefore,, even magnetic shield panel 3 is done thinlyyer, also can maintain saturation flux density compared with highland.On this basis, having used iron is that the magnetic shield panel 6 of noncrystalline powder is that the magnetic shield panel 3 of powder is compared with having used ferrite, can be shaped compared with unfertile land.
Claims (1)
1. a chip inductor, is characterized in that: comprise coil, bobbin, magnetic shield panel, drum-shaped magnetic core and electrode; Described drum-shaped magnetic core is two, lay respectively at the two ends of described bobbin, described coil winding is in the periphery of described bobbin, described electrode is two lower ends that lay respectively at two described drum-shaped magnetic cores, the two ends of described coil are connected with two described electrodes respectively, the two ends of described magnetic shield panel are with two described drum-shaped magnetic cores respectively that bridge shape is bonding to be connected, and described magnetic shield panel is that resin material solidified iron is the plate-shaped member that noncrystalline powder forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420367914.7U CN204011008U (en) | 2014-07-04 | 2014-07-04 | Chip inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420367914.7U CN204011008U (en) | 2014-07-04 | 2014-07-04 | Chip inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204011008U true CN204011008U (en) | 2014-12-10 |
Family
ID=52050971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420367914.7U Expired - Fee Related CN204011008U (en) | 2014-07-04 | 2014-07-04 | Chip inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204011008U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045923A (en) * | 2016-02-09 | 2017-08-15 | 株式会社村田制作所 | Coil component |
| CN111446062A (en) * | 2020-04-08 | 2020-07-24 | 王国义 | Winding type rectangular chip inductor |
| JP2021090033A (en) * | 2019-12-06 | 2021-06-10 | 株式会社村田製作所 | Winding core, coil component, and manufacturing method of coil component |
| US11657957B2 (en) * | 2016-12-08 | 2023-05-23 | Murata Manufacturing Co., Ltd. | Inductor and DC-DC converter |
-
2014
- 2014-07-04 CN CN201420367914.7U patent/CN204011008U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045923A (en) * | 2016-02-09 | 2017-08-15 | 株式会社村田制作所 | Coil component |
| CN107045923B (en) * | 2016-02-09 | 2019-01-15 | 株式会社村田制作所 | Coil component |
| US10192668B2 (en) | 2016-02-09 | 2019-01-29 | Murata Manufacturing Co., Ltd. | Coil component |
| US11657957B2 (en) * | 2016-12-08 | 2023-05-23 | Murata Manufacturing Co., Ltd. | Inductor and DC-DC converter |
| JP2021090033A (en) * | 2019-12-06 | 2021-06-10 | 株式会社村田製作所 | Winding core, coil component, and manufacturing method of coil component |
| JP7172971B2 (en) | 2019-12-06 | 2022-11-16 | 株式会社村田製作所 | WINDING CORE, COIL COMPONENT, AND COIL COMPONENT MANUFACTURING METHOD |
| CN111446062A (en) * | 2020-04-08 | 2020-07-24 | 王国义 | Winding type rectangular chip inductor |
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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 |
Granted publication date: 20141210 Termination date: 20150704 |
|
| EXPY | Termination of patent right or utility model |