CN101154494A - Inductor - Google Patents
Inductor Download PDFInfo
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- CN101154494A CN101154494A CNA2006101423117A CN200610142311A CN101154494A CN 101154494 A CN101154494 A CN 101154494A CN A2006101423117 A CNA2006101423117 A CN A2006101423117A CN 200610142311 A CN200610142311 A CN 200610142311A CN 101154494 A CN101154494 A CN 101154494A
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Abstract
The invention discloses an inductor, comprising a baseplate which is provided with at least one magnetic core, at least one coil which can be socket jointed on the magnetic core, a magnetic cap consisting of a top wall and a side wall to form at least one hollow chamber for containing the magnetic core and coil, and an electrode arranged on the baseplate for connecting a lead terminal of the coil and an external circuit, wherein, the magnetic cap is provided with a gaping place going through the side wall and top wall of the magnetic cap, and the gaping place is used for leading out the lead terminal of the coil to be connected with the electrode. The invention is applicable to various electronic aids, in particular to the electronic products needing to take full advantage of space such as mobile phones and notebook PC.
Description
Technical field
The present invention relates to a kind of electronic devices and components, especially relate to a kind of surface mounting inductor.
Background technology
Inductor has obtained using widely in the design of various electronic circuits as a kind of main electronic devices and components, is to realize the indispensable components and parts of many circuit functions.
Along with the various electronic equipments development trend of miniaturization and lightness day by day, comprise that the electronic devices and components of the formation electronic equipment of inductor also develop in the direction towards miniaturization and lightness constantly.For this reason, those skilled in the art has done a large amount of research and development aspect production technology or aspect product configurations, designs the inductor that is suitable for producing with practical application of all kinds.For example, the Japanese documentation spy opens 2003-173915 and discloses a kind of small-sized choking-winding that has in metal die by filling, pressurization, moulding and cure the jar shape rivet-like magnetic core that meticulous ferrite powder constitutes, it has the jar shape magnetic core 10 of the sidewall 103 that constitutes by top wall 101 with wall 101 one, and the rivet-like magnetic core 20 that is made of base plate 201 and integrated the magnetic core portion 204 that is erected at the central part of plate 201.Be formed with magnetic air gap G between the top wall of the upper end of magnetic core portion 204 and magnetic core 10, magnetic core 10 and 20 is bonded to each other and is fixing.In addition, on the end face of the opening of sidewall 103, forming fitting projection 105 or chimeric recess 205 relatively, and in relative corresponding chimeric recess 205 or the fitting projection 105 of forming in both sides of base plate 201.Though the technical scheme of this patent provides a kind of undersized choking-winding,, its set-up mode of breach 104 of drawing the terminals of coil has determined to occupy certain space in the horizontal direction, has limited the miniaturization of goods.And on the other hand, the Japanese documentation spy opens flat 9-320859 and also discloses a kind ofly with the facies pattern inductor, and it is provided with worker's shape magnetic core 1 of drawing ditch 4 by the side, is accommodated in the coil 5 of worker's shape magnetic core 1, and the plane magnetic core 2 of having preset terminal 3 constitutes.Though this invention provides a kind of inductor that can be applied to hot gas welding and Reflow Soldering simultaneously, but because the set-up mode of its lead-in wire ditch 4 has determined must occupy certain space in the horizontal direction when the lead-in wire of coil 5 is being drawn out to terminal 3, make the space of goods not make full use of, limited the miniaturization of goods equally.
Summary of the invention
The objective of the invention is to draw the breach set-up mode of the terminals of coil by improvement, and a kind of wire connecting portion and mounting portion from electrode, thereby the inductor of a kind of jar of shape magnetic core hypernanosoma is provided, further reduce the size of inductor.In order to realize this purpose, the technical solution used in the present invention is:
According to inductor of the present invention, comprising: substrate, it is provided with at least one magnetic core; At least one coil, it can be socketed on the described magnetic core; The magnetic cap, it is made of roof and sidewall, is used to form at least one cavity to contain described magnetic core and coil; And electrode, it is arranged on the described substrate, is used for the lead end and the external circuit of connecting coil; Wherein described magnetic cap is provided with the sidewall of perforation magnetic cap and the breach of roof, is used to draw the lead end of described coil, to be connected with described electrode.
Preferably, after described magnetic cap and the assembling of described substrate, have air gap between the roof of described magnetic core and described magnetic cap, have magnetisable material between the roof of perhaps described magnetic core and described magnetic cap.
Wherein said electrode comprises connecting portion and installation portion; Wherein said connecting portion is used for being electrically connected the lead end of described coil, and described installation portion is used for being electrically connected external circuit.Wherein said connecting portion is arranged on described indentation, there.
The area of described substrate is greater than the area of described magnetic cap.The part that the area of described substrate is bigger than the area of described magnetic cap just is used for laying the installation portion of described electrode.
Optionally, described magnetic cap is flat cuboid, and the sidewall of magnetic cap and roof form a tubular cavity; On described substrate, be correspondingly provided with a tubular magnetic core; Place, two stupefied limits at cuboid magnetic cap diagonal angle is provided with the sidewall of perforation magnetic cap and the breach of roof respectively.
Also optionally, described substrate is provided with two tubular magnetic cores; Described magnetic cap is flat cuboid, and the sidewall of magnetic cap and roof form and can hold the cavity of socket coil two cylinder bodily form magnetic cores afterwards respectively; Place, four stupefied limits at cuboid magnetic cap is provided with the sidewall of perforation magnetic cap and the breach of roof respectively.
Also optionally, described substrate is provided with a tubular magnetic core; Described magnetic cap is flat cuboid, and the sidewall of magnetic cap and roof form a tubular cavity; Place, four stupefied limits at cuboid magnetic cap is provided with the sidewall of perforation magnetic cap and the breach of roof respectively; Wherein said coil has two windings.
According to the inductor of technical solution of the present invention, obtained beneficial effect is mainly reflected in following aspect:
1. under the situation of jar shape magnetic cap hypernanosoma, help drawing of coil lead;
2. can further reduce the height of inductor, realize the low back of the bodyization.Jar shape magnetic cap can be little of about 1mm;
3. air gap between magnetic crown wall and magnetic core or magnetisable material help regulating and improving the electrical characteristic of inductor;
4. the wire connecting portion of electrode can be arranged in the breach, helps making full use of the width that the space further reduces inductor;
5. the wire connecting portion of electrode and mounting portion are from, the accuracy when helping realizing being installed in substrate;
6. descend the magnetic core area bigger just to be used for being provided with the installation portion of electrode than last magnetic core, when realizing that common whole goods are in mounted on surface mode on the printed circuit board (PCB), more can realize the mounting means of goods in the printed circuit intralamellar part, promptly utilizing down, the magnetic core part bigger than last magnetic core is fixed on the printed circuit board (PCB) as electrode part, utilize then the through hole that in printed circuit board (PCB), pre-sets on magnetic core be received into a kind of mounting means of substrate inside, the space of substrate is fully utilized, has further satisfied the installation requirement under the trend toward miniaturization.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done to specify, components identical or feature are represented with identical Reference numeral among the figure, wherein
Fig. 1 is the installation diagram according to the inductor of one embodiment of the present of invention;
Fig. 2 is the schematic diagram according to the magnetic cap of one embodiment of the present of invention;
Fig. 3 is the schematic diagram according to the magnetic cap of one embodiment of the present of invention;
Fig. 4 is the vertical view according to the inductor of one embodiment of the present of invention;
Fig. 5 is the STRUCTURE DECOMPOSITION figure according to the inductor of one embodiment of the present of invention;
Fig. 6 is the inductor user mode schematic diagram according to one embodiment of the present of invention;
Fig. 7 is the STRUCTURE DECOMPOSITION figure according to the inductor of an alternative embodiment of the invention;
Fig. 8 is the vertical view according to the inductor of another embodiment of the present invention;
Fig. 9 is the stereogram according to the inductor of another embodiment of the present invention.
Among the figure: 100. magnetic caps, 200. substrates, 300. coils, 400. electrodes, 110. magnetic crown walls, 120. magnetic cap sidewall, 130. cavitys, 140. breach, 210. magnetic cores, 310. coil lead ends, 410. electrode connecting portion, 420. electrode installation portions, 500. inductors, 600. printed circuit board (PCB)s.
Embodiment
Embodiment 1: as shown in Figure 1, comprise according to the inductor of present embodiment: flat cuboid magnetic cap 100, substrate 200, coil 300 and two electrodes 400.As shown in Figure 2, magnetic cap 100 is made of roof 110 and sidewall 120, is used to form a tubular cavity 130, sees Fig. 3; Wherein be provided with the sidewall 120 of perforation magnetic cap and two breach 140 of roof 110 respectively, see Fig. 2 and Fig. 3, be used to draw two lead ends 310 of coil 300,, see Fig. 4 to be connected with electrode 400 at the place, two stupefied limits at magnetic cap 100 diagonal angles.As shown in Figure 5, substrate 200 is provided with a tubular magnetic core 210 corresponding with the cavity 130 of magnetic cap 100, and preferably tubular magnetic core 210 is perpendicular to substrate 200 and integrally formed with substrate 200; Coil 300 has two lead ends 310, and coil 300 can be socketed on the magnetic core 210.As shown in Figure 5, electrode 400 comprises connecting portion 410 and installation portion 420, and wherein connecting portion 410 is used for being electrically connected the lead end 310 of coil, and installation portion 420 is used for being electrically connected external circuit; As shown in Figure 4, wherein connecting portion 410 is arranged on and lacks 140 places, and installation portion 420 is arranged on the substrate 200, is used for the lead end 310 and the external circuit of connecting coil.
After magnetic cap 100 and substrate 200 assemble, have air gap between the roof 110 of magnetic core 210 and magnetic cap, perhaps have magnetisable material between the roof 110 of magnetic core 210 and magnetic cap.
The area of substrate 200 is greater than the area of magnetic cap 100, and the part that the area of substrate 200 is bigger than the area of magnetic cap 100 just is used for laying the installation portion 420 of electrode 400, sees Fig. 4.
Fig. 6 is installed to user mode schematic diagram on the printed circuit board (PCB) 600 with the inductor 500 according to present embodiment.
Embodiment 2: as shown in Figure 7, the difference of the inductor of the inductor of present embodiment and embodiment 1 is that substrate 200 is provided with two tubular magnetic cores 210; Magnetic cap 100 is flat cuboid, and the sidewall of magnetic cap 100 and roof form and can hold the cavity of socket coil 300 two tubular magnetic cores 210 afterwards respectively; Place, four stupefied limits at cuboid magnetic cap 100 is provided with the sidewall of perforation magnetic cap 100 and the breach 140 of roof respectively.
Embodiment 3: as Fig. 8 and shown in Figure 9, the inductor of the inductor of present embodiment and embodiment 1 is similar, and substrate 200 is provided with a tubular magnetic core 210; Magnetic cap 100 is flat cuboid, and the sidewall of magnetic cap and roof form a tubular cavity.Yet, the difference of the inductor of the inductor of present embodiment and embodiment 1 is, place, four stupefied limits at cuboid magnetic cap 100 is provided with the sidewall of perforation magnetic cap and the breach of roof respectively, the coil 300 that wherein is socketed on the magnetic core 210 has two windings, four lead ends of coil 300 are drawn from four indentation, there respectively, to be connected respectively with four electrodes 400.
More than the present invention is illustrated that still, the present invention is not limited to these specific embodiments by specific embodiment.For example, at the magnetic core that can also be provided with on the substrate more than three or three, the magnetic cap also correspondingly is provided with and can holds the cavity that puts coil magnetic core afterwards.In addition, magnetic core also is not limited to the cylinder bodily form, also can be for stupefied cylindricality etc., and the shape that the cavity of the shape of coil and magnetic cap only need correspondingly be set just can realize the present invention; Certainly, magnetic cap and substrate also are not limited to flat cuboid.
Claims (10)
1. inductor comprises:
Substrate, it is provided with at least one magnetic core;
At least one coil can be socketed on the described magnetic core;
The magnetic cap is made of roof and sidewall, is used to form at least one cavity to contain described magnetic core and coil; And
Electrode is arranged on the described substrate, is used for the lead end and the external circuit of connecting coil;
It is characterized in that:
Described magnetic cap is provided with the sidewall of perforation magnetic cap and the breach of roof, is used to draw the lead end of described coil, to be connected with described electrode.
2. inductor as claimed in claim 1 is characterized in that: after described magnetic cap and the assembling of described substrate, have air gap between the roof of described magnetic core and described magnetic cap.
3. inductor as claimed in claim 1 is characterized in that: have magnetisable material between the roof of described magnetic core and described magnetic cap.
4. inductor as claimed in claim 1 is characterized in that: described electrode comprises connecting portion and installation portion; Wherein said connecting portion is used for being electrically connected the lead end of described coil, and described installation portion is used for being electrically connected external circuit.
5. inductor as claimed in claim 4 is characterized in that: described connecting portion is arranged on described indentation, there.
6. inductor as claimed in claim 1 is characterized in that: the area of described substrate is greater than the area of described magnetic cap.
7. inductor as claimed in claim 6 is characterized in that: the part that the area of described substrate is bigger than the area of described magnetic cap just is used for laying the installation portion of described electrode.
8. as any one described inductor of claim 1 to 7, it is characterized in that: described magnetic cap is flat cuboid, and the sidewall of magnetic cap and roof form a tubular cavity; On described substrate, be correspondingly provided with a tubular magnetic core; Place, two stupefied limits at cuboid magnetic cap diagonal angle is provided with the sidewall of perforation magnetic cap and the breach of roof respectively.
9. as any one described inductor of claim 1 to 7, it is characterized in that: described substrate is provided with two tubular magnetic cores; Described magnetic cap is flat cuboid, and the sidewall of magnetic cap and roof form and can contain the cavity of socket coil two cylinder bodily form magnetic cores afterwards respectively; Place, four stupefied limits at cuboid magnetic cap is provided with the sidewall of perforation magnetic cap and the breach of roof respectively.
10. as any one described inductor of claim 1 to 7, it is characterized in that: described substrate is provided with a tubular magnetic core; Described magnetic cap is flat cuboid, and the sidewall of magnetic cap and roof form a tubular cavity; Place, four stupefied limits at cuboid magnetic cap is provided with the sidewall of perforation magnetic cap and the breach of roof respectively; Wherein said coil has two windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101423117A CN101154494A (en) | 2006-09-27 | 2006-09-27 | Inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101423117A CN101154494A (en) | 2006-09-27 | 2006-09-27 | Inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101154494A true CN101154494A (en) | 2008-04-02 |
Family
ID=39256067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101423117A Pending CN101154494A (en) | 2006-09-27 | 2006-09-27 | Inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101154494A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160032566A (en) * | 2014-09-16 | 2016-03-24 | 삼성전기주식회사 | Coil component and and board for mounting the same |
| KR20160032580A (en) * | 2014-09-16 | 2016-03-24 | 삼성전기주식회사 | Coil component and and board for mounting the same |
| CN105489342A (en) * | 2016-01-14 | 2016-04-13 | 深圳顺络电子股份有限公司 | Inductor used for class D power amplifier and manufacturing method of inductor |
| CN105788823A (en) * | 2014-12-24 | 2016-07-20 | 丹东大东电子有限公司 | Power inductor core with closed magnetic circuit structure |
| CN106057432A (en) * | 2011-01-07 | 2016-10-26 | 乾坤科技股份有限公司 | Inductor |
| CN106158246A (en) * | 2013-01-10 | 2016-11-23 | 乾坤科技股份有限公司 | There is the magnetic devices of high saturation current and low core loss |
| TWI614777B (en) * | 2015-12-18 | 2018-02-11 | Thin inductor structure and manufacturing method | |
| CN112349475A (en) * | 2019-08-07 | 2021-02-09 | 株式会社村田制作所 | Inductor component and electronic component |
-
2006
- 2006-09-27 CN CNA2006101423117A patent/CN101154494A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057432A (en) * | 2011-01-07 | 2016-10-26 | 乾坤科技股份有限公司 | Inductor |
| CN106158246B (en) * | 2013-01-10 | 2021-07-20 | 乾坤科技股份有限公司 | Magnetic device with high saturation current and low core loss |
| CN106158246A (en) * | 2013-01-10 | 2016-11-23 | 乾坤科技股份有限公司 | There is the magnetic devices of high saturation current and low core loss |
| KR102029491B1 (en) * | 2014-09-16 | 2019-10-07 | 삼성전기주식회사 | Coil component and and board for mounting the same |
| CN105990009B (en) * | 2014-09-16 | 2019-10-15 | 三星电机株式会社 | Coil component and plate with the coil component |
| CN105990009A (en) * | 2014-09-16 | 2016-10-05 | 三星电机株式会社 | Coil component and board having the same |
| KR20160032580A (en) * | 2014-09-16 | 2016-03-24 | 삼성전기주식회사 | Coil component and and board for mounting the same |
| KR102047563B1 (en) * | 2014-09-16 | 2019-11-21 | 삼성전기주식회사 | Coil component and and board for mounting the same |
| CN105990008A (en) * | 2014-09-16 | 2016-10-05 | 三星电机株式会社 | Coil component and board having the same |
| KR20160032566A (en) * | 2014-09-16 | 2016-03-24 | 삼성전기주식회사 | Coil component and and board for mounting the same |
| US10056183B2 (en) | 2014-09-16 | 2018-08-21 | Samsung Electro-Mechanics Co., Ltd. | Coil component and board having the same |
| CN105990008B (en) * | 2014-09-16 | 2018-11-09 | 三星电机株式会社 | Coil component and plate with the coil component |
| CN105788823A (en) * | 2014-12-24 | 2016-07-20 | 丹东大东电子有限公司 | Power inductor core with closed magnetic circuit structure |
| TWI614777B (en) * | 2015-12-18 | 2018-02-11 | Thin inductor structure and manufacturing method | |
| CN105489342B (en) * | 2016-01-14 | 2018-02-27 | 深圳顺络电子股份有限公司 | A kind of D classes power amplifier inductance and preparation method thereof |
| CN105489342A (en) * | 2016-01-14 | 2016-04-13 | 深圳顺络电子股份有限公司 | Inductor used for class D power amplifier and manufacturing method of inductor |
| CN112349475A (en) * | 2019-08-07 | 2021-02-09 | 株式会社村田制作所 | Inductor component and electronic component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080402 |