CN103928215A - Shielding-type inductor - Google Patents
Shielding-type inductor Download PDFInfo
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- CN103928215A CN103928215A CN201410132078.9A CN201410132078A CN103928215A CN 103928215 A CN103928215 A CN 103928215A CN 201410132078 A CN201410132078 A CN 201410132078A CN 103928215 A CN103928215 A CN 103928215A
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- type inductor
- shielding type
- coil
- millimeters
- shielding
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Abstract
A shielding-type inductor comprises a magnetic rod, a coil and a magnetic cover. The coil is wound on the magnetic rod. The magnetic cover sleeves the coil. The wire diameter of the coil ranges from 0.7mm to 1.7mm. The shielding-type inductor can generate large currents and has a magnetic shielding function.
Description
Technical field
The present invention relates to electronic component, particularly relate to a kind of shielding type inductor.
Background technology
Inductor is generally comprised of skeleton, winding, encapsulating material, magnetic core or iron core etc.Rated current, as a major parameter of inductance, refers to the lowest high-current value that inductor can bear under the operational environment allowing.Some high power circuits require higher to the rated current of inductor, therefore occurred high-current inductor.
Domestic and international high-current inductor specification and shape have a variety of, but the electromagnetic interference problem of traditional high-current inductor is serious; On the other hand, although some inductor has improved the inductor that electromagnetic interference problem cannot be made ten or tens amperes of resistance to electric currents.
Summary of the invention
Based on this, be necessary to provide a kind of shielding type inductor that can realize large electric current and tool magnetic screening action.
A shielding type inductor, comprises bar magnet, coil and magnetic cover, and described coil winding is on bar magnet, and the described magnetic enclosure is on coil, and the wire diameter of described coil is 0.7 millimeter～1.7 millimeters.
Above-mentioned shielding type inductor by by the thick line footpath of 0.7 millimeter～1.7 millimeters of the wire diameter designs of coil to realize large electric current, by magnetic cover of described coil overcoat to realize magnetic screen.
In an embodiment, described coil adopts the enamel covered wire coiling of single cord therein.。
In an embodiment, the end of described enamel covered wire is directly drawn the pin as described shielding type inductor from described magnetic cover therein.Simplified like this design.
In an embodiment, the part that described enamel covered wire exceeds described magnetic cover is wicking position therein.
In an embodiment, the number of turns of the coiling of described coil is 2 circle～12 circles therein.Can implement so the low D.C. resistance of this shielding type inductor.
In an embodiment, the length of described shielding type inductor is respectively 11.4 millimeters, 11.4 millimeters, 8.2 millimeters therein.Can guarantee the miniaturization of this shielding type inductor like this.
In an embodiment, described bar magnet, coil, magnetic cover are bonded into one by adhesive glue therein.Can guarantee like this reliability of this shielding type inductor when complete machine.
Therein in an embodiment, the enamel covered wire of described single cord is tight, parallel, winding is regularly on described bar magnet.
Accompanying drawing explanation
Fig. 1 is the contour structures vertical view of an embodiment shielding type inductor;
Fig. 2 is the contour structures front view of shielding type inductor shown in Fig. 1.
Embodiment
Please refer to Fig. 1 and Fig. 2, is contour structures vertical view and the front view of an embodiment shielding type inductor.This shielding type inductor comprises coil 110, bar magnet 120, adhesive glue 130, magnetic cover 140 and pin 150.Coil 110 is wrapped on bar magnet 120, and magnetic cover 140 is enclosed within on coil 110.
In the present embodiment, the size of this shielding type inductor is: 11.4 millimeters * 11.4 millimeters * 8.2 millimeters, length and width are high is respectively 11.4 millimeters, 11.4 millimeters, 8.2 millimeters.Realized like this compact in size, with the saturation of having entered to guarantee coiling 110.Be appreciated that the size of this shielding type inductor can change within the specific limits in other embodiments.
Coil 110 in fact first adopts hollow winding method, and then bar magnet 120 is inserted.Coil 110 adopts the enamel covered wire winding method of single cord.Coil 110 is designed to thick line footpath, and the wire diameter of coil 110 is 0.7 millimeter～1.7 millimeters, can realize so the large electric current of shielding type inductor.The end of described enamel covered wire is directly drawn the pin 150 as this shielding type inductor from magnetic cover 140, and through hot setting effect, pin 150 and magnetic cover 140 is combined into one.That when the design of having simplified like this this shielding type inductor has guaranteed complete machine simultaneously, has welded is good.
In addition, coil 110 number of turns when coiling is few, is specially 2 circle～12 circles, can realize low D.C. resistance like this.Tight, parallel, regular during the enamel covered wire coiling of single cord.Can guarantee that like this sensibility reciprocal of this shielding type inductor and D.C. resistance reach requirement.
Bar magnet 120 generally forms by inner magnetic core with outside covering.
Adhesive glue 130 is mainly used in bar magnet 120, coil 110, magnetic cover 140 to be bonded into one.Can guarantee like this this shielding type inductor better reliability when complete machine uses.The direct overcoat of magnetic cover 140, on coil 110, can be avoided the problem of electromagnetic interference so effectively.In addition, will control the wicking size of pin 150 aspect processing technology, in the present embodiment, the part that the end of the enamel covered wire of sub-thread exceeds magnetic cover 140 when magnetic cover 140 is drawn is wicking position.
Above-mentioned shielding type inductor meets the test requirements document of GJB360B, and inductance value can reach 0.3 microhenry～4.7 microhenry, and D.C. resistance is 1.0 milliohm～6.0 milliohms, and rated current is 8.0 amperes～40.0 amperes.This shielding type inductor can be realized the requirement of large electric current, high sensibility reciprocal, low D.C. resistance, miniaturization, can reach military requirement, and this shielding type inductor may be used in all products that need inductor, thereby has effectively expanded its scope of application.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a shielding type inductor, is characterized in that, comprises bar magnet, coil and magnetic cover, and described coil winding is on bar magnet, and the described magnetic enclosure is on coil, and the wire diameter of described coil is 0.7 millimeter～1.7 millimeters.
2. shielding type inductor according to claim 1, is characterized in that, described coil adopts the enamel covered wire coiling of single cord.
3. shielding type inductor according to claim 2, is characterized in that, the end of described enamel covered wire is directly drawn the pin as described shielding type inductor from described magnetic cover.
4. shielding type inductor according to claim 3, is characterized in that, the part that described enamel covered wire exceeds described magnetic cover is wicking position.
5. shielding type inductor according to claim 1, is characterized in that, the number of turns of the coiling of described coil is 2 circle～12 circles.
6. shielding type inductor according to claim 1, is characterized in that, the length of described shielding type inductor is respectively 11.4 millimeters, 11.4 millimeters, 8.2 millimeters.
7. shielding type inductor according to claim 1, is characterized in that, described bar magnet, coil, magnetic cover are bonded into one by adhesive glue.
8. shielding type inductor according to claim 2, is characterized in that, the enamel covered wire of described single cord is tight, parallel, winding is regularly on described bar magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132078.9A CN103928215A (en) | 2014-04-02 | 2014-04-02 | Shielding-type inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132078.9A CN103928215A (en) | 2014-04-02 | 2014-04-02 | Shielding-type inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103928215A true CN103928215A (en) | 2014-07-16 |
Family
ID=51146405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410132078.9A Pending CN103928215A (en) | 2014-04-02 | 2014-04-02 | Shielding-type inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103928215A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215900A (en) * | 1997-10-24 | 1999-05-05 | 株式会社村田制作所 | Inductor and method of manufacturing the same |
| CN101789303A (en) * | 2009-01-22 | 2010-07-28 | 乾坤科技股份有限公司 | Choke |
| CN201893215U (en) * | 2010-10-29 | 2011-07-06 | 美桀电子科技(深圳)有限公司 | Passive element |
| JP2014017314A (en) * | 2012-07-06 | 2014-01-30 | Panasonic Corp | Manufacturing method of inductor |
-
2014
- 2014-04-02 CN CN201410132078.9A patent/CN103928215A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215900A (en) * | 1997-10-24 | 1999-05-05 | 株式会社村田制作所 | Inductor and method of manufacturing the same |
| CN101789303A (en) * | 2009-01-22 | 2010-07-28 | 乾坤科技股份有限公司 | Choke |
| CN201893215U (en) * | 2010-10-29 | 2011-07-06 | 美桀电子科技(深圳)有限公司 | Passive element |
| JP2014017314A (en) * | 2012-07-06 | 2014-01-30 | Panasonic Corp | Manufacturing method of inductor |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140716 |
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| RJ01 | Rejection of invention patent application after publication |