CN202711903U - Inductance element - Google Patents
Inductance element Download PDFInfo
- Publication number
- CN202711903U CN202711903U CN 201220325703 CN201220325703U CN202711903U CN 202711903 U CN202711903 U CN 202711903U CN 201220325703 CN201220325703 CN 201220325703 CN 201220325703 U CN201220325703 U CN 201220325703U CN 202711903 U CN202711903 U CN 202711903U
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- CN
- China
- Prior art keywords
- inductance element
- iron core
- convex shoulder
- electrode slice
- enamelled
- 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
An inductance element comprises an iron core and a plurality of varnished wires. The iron core comprises a middle columnar portion and flange portions connected on two ends of the columnar portion. Electrode sheets are arranged on the lower end of each flange portion, and the plurality of the varnished wires are wound on the columnar portion. The end portions of the plurality of the varnished wires are connected with electrode sheets, and the flange portions are provided with protruding shoulders which extend out of the columnar portion along the downward direction. The plurality of the varnished wires comprises two varnished wires which are mutually crossed close to the positions of the protruding shoulders and connected with corresponding electrodes. The inductance element is characterized in that the protruding shoulders are provided with concave areas, and the two intercrossed varnished wires are placed in the concave areas close to the intersection in hanging mode and do not contact with the protruding shoulders.
Description
[technical field]
The utility model relates to a kind of inductance element, and this inductance element has iron core and is wound in enamelled wire on the iron core.
[background technology]
It is the Chinese utility model patent of CN202258716U that May 30 in 2012 was announced notification number.This patent specification has disclosed a kind of pulse transformer, and it comprises I-shaped iron core and is wound in four enamelled wires on the I-shaped iron core.Each flange portion is equipped with four electrode slices, and the end of enamelled wire is welded in respectively on the respective electrical pole piece.The enamelled wire of two electrode slices intersects mutually in the middle of being soldered to, and its crosspoint is positioned at the place, right-angled edge edge of flange portion.When utilizing automatic coil winding machine coiling to middle two electrode slices, very easily cause the conflict of these two enamelled wires and interior right-angled edge, thereby the enamel-cover film that causes enamelled wire surface is by scratch.Interior right-angled edge is against two enamelled wires, so that the crosspoint of two enamelled wires contact closely and so that this crosspoint on rib, thereby the unilateral close together of this intersection bottom electrode, tin cream is easily climbed to this crosspoint and is produced the phenomenon of poor short circuit when adopting surface soldered technology (SMT) to re-pack scolding tin.
In addition, prior art also can be with reference to the US8 of bulletin on January 10th, 2012,093,980 United States Patent (USP).This patent specification has also disclosed a kind of surface installing type pulse transformer, and the inboard of its I-shaped core flange section does not have right-angled edge, but with inboard, upright wall obtuse angle rib in obtuse angle.The enamelled wire that is soldered on middle two conducting strips intersects mutually, and its crosspoint is positioned at rib place, obtuse angle.Although, in this patent the inboard of flange portion designed an inclined-plane and with the vertical wall of inboard in obtuse angle, but do not solve near two enamelled wire crosspoints not the technical problem of conflicting with flange portion, certainly or can have the same drawback of above-mentioned Chinese utility model patent.
[utility model content]
Technical problem to be solved in the utility model is: a kind of inductance element is provided, and it has the iron core of flange portion and the enamelled wire that intersects near flange portion, and when the enamelled wire of described intersection was connected to flange portion, the intersection enamelled wire is mutually insulated still.
In order to address the above problem, the utility model provides a kind of inductance element, it comprises iron core and some enamelled wires, described iron core comprises intermediolateral column body and the flange portion that is connected in the cylindrical portion two ends, the lower end of flange portion is provided with electrode slice, the mid portion of described some enamelled wires is wound in cylindrical portion, the end of described some enamelled wires is connected in electrode slice, described flange portion has the convex shoulder that extends beyond cylindrical portion along downward direction, described some enamelled wires comprise two enamelled wires that are soldered to the respective electrical pole piece after mutually intersecting near the convex shoulder place, described convex shoulder is provided with the spill district, thereby the enamelled wire of described two intersections is suspended in the spill district near its crosspoint and does not contact with convex shoulder.
With respect to prior art, thereby being set on the convex shoulder of the utility model by flange portion, the enamelled wire that the spill district makes intersection is suspended in the spill district, reduce the enamelled wire that intersects and caused the destroyed possibility of magnet wire insulation film with the convex shoulder conflict.
[description of drawings]
Fig. 1 is the stereogram of the utility model inductance element.
Fig. 2 is inductance element exploded view shown in Figure 1.
Fig. 3 is the assembling sequence figure of inductance element shown in Figure 1.
Fig. 4 is the circuit theory diagrams of inductance element shown in Figure 1.
[main element symbol description]
| Inductance element | 100 | I- |
10 |
| Enamelled |
20 | The cover |
30 |
| The first enamelled wire | S1 | The second enamelled wire | S2 |
| The 3rd enamelled wire | S3 | The 4th enamelled wire | S4 |
| The end | S1a-S4a,S1b-S4b | |
11 |
| The |
12a | The |
12b |
| The first |
13a | The second |
13b |
| The |
141 | |
|
| Interval trough | |||
| 151、152、153 | The |
16 |
Following embodiment further specifies the utility model in connection with above-mentioned accompanying drawing.
[embodiment]
Be illustrated in figure 1 as the stereogram of inductance element 100.Inductance element 100 comprises I-shaped iron core 10, is wound in the some enamelled wires 20 on the I-shaped iron core 10, and the cover plate iron core 30 that is covered on I-shaped iron core 10 upper ends.
As shown in Figure 2, I-shaped iron core 10 the first flange portion 12a and the second flange portion 12b that comprise middle column section 11 and be connected in cylindrical portion 11 two ends.The first flange portion 12a and the second flange portion 12b have respectively the first convex shoulder 13a and the second convex shoulder 13b that extends beyond cylindrical portion 11 along downward direction.The lower end of the first convex shoulder 13a has along cylindrical portion 11 extends and four grooves being parallel to each other and be arranged at first to the 3rd interval trough 151,152,153 between adjacent two grooves, and wherein the width of the second interval trough 152 is greater than the width of the first interval trough 151 and the 3rd interval trough 153.The first convex shoulder 13a also comprises and is positioned at the innermost concave surface 15c of each interval trough, and these concave surfaces 15c also is positioned at the below of cylindrical portion 11.The first convex shoulder 13a also comprises the spill district 16 of the concave surface 15c that connects cylindrical portion 11 to second interval troughs 152, and the district of spill shown in the figure 16 comprises a slope.Thereby all be electroplate with electrode slice on each groove and form electrode slice groove 141.When interval trough 151,152,153 can reduce the first convex shoulder 13a lower end electrode sheet and is soldered to external substrate, connect the possibility of weldering between the adjacent electrode sheet.The second convex shoulder 13b and the first convex shoulder 13a are symmetrical arranged, and omit its description for the purpose of brief.
Described some enamelled wires 20 comprise four enamelled wire S1-S4, the every end that enamelled wire comprises pars intermedia and is positioned at the pars intermedia two ends, and wherein pars intermedia is wound in the cylindrical portion 11 of I-shaped iron core 10, the corresponding electrode slice groove 141 that is soldered in end.
Be illustrated in figure 3 as the number of assembling steps figure of inductance element 100.One I-shaped iron core 10 at first is provided, again the first enamelled wire S1 and the 3rd enamelled wire S3 two-wire is wound to I-shaped iron core 10, see that from the first flange portion 12a to the second flange portion 12b direction described winding direction is for counterclockwise.The end S3a of the end S1a of the first enamelled wire S1 and the 3rd enamelled wire S3 is behind the first flange portion 12a electrode slice groove 141 bearing of trends location, and with end S1a, S3a and electrode slice groove 141 are fused into a welding plane by Wuxi spot welding (thermofussion welding).Electrode slice groove 141 on the end S1b of the first enamelled wire S1 and the second flange portion 12b welds at an angle, and the end S3b of the 3rd enamelled wire S3 welds along electrode slice groove 141 bearing of trends on the second flange portion 12b.
Again the second enamelled wire S2 and the 4th enamelled wire S4 two-wire are wound to I-shaped iron core 10, see that from the first flange portion 12a to the second flange portion 12b direction described winding direction is clockwise direction.The end S4a of the end S2a of the second enamelled wire S2 and the 4th enamelled wire S4 is behind the first flange portion 12a electrode slice groove 141 bearing of trends location, and with end S1a, S3a and electrode slice groove 141 are fused into a welding plane by Wuxi spot welding (thermofussion welding).The end S2b of the second enamelled wire S2 is along the welding of electrode slice groove 141 bearing of trends on the second flange portion 12b, and the end S4b of the 4th enamelled wire S4 welds at an angle along the electrode slice groove 141 on the second flange portion.
The end S2a of the second enamelled wire S2 of close the first convex shoulder 13a is connected to the respective electrical pole piece after intersecting with the end S3a of the 3rd enamelled wire S3, and the end S1b of the first enamelled wire S1 of close the second convex shoulder 13b is connected to the respective electrical pole piece after intersecting with the end S4b of the 4th enamelled wire S4.The enamelled wire of described two intersections is suspended near its crosspoint in the spill district 16 and does not contact with convex shoulder 13a, 13b, has reduced the enamelled wire that intersects and has caused the destroyed possibility of magnet wire insulation film with the convex shoulder conflict.The enamelled wire of described two intersections does not contact with the slope in spill district near the crosspoint yet.
As shown in Figure 4, the circuit theory diagrams that are used for a small-sized SMD pulse transformer (pulse transformer) for described inductance element 100.
Claims (10)
1. inductance element, it comprises iron core and some enamelled wires, described iron core comprises intermediolateral column body and the flange portion that is connected in the cylindrical portion two ends, the lower end of flange portion is provided with electrode slice, the pars intermedia of described some enamelled wires is wound in cylindrical portion, the end of described some enamelled wires is connected in electrode slice, described flange portion has the convex shoulder that extends beyond cylindrical portion along downward direction, described some enamelled wires comprise two enamelled wires that are connected to the respective electrical pole piece after mutually intersecting near the convex shoulder place, it is characterized in that: described convex shoulder is provided with the spill district, thereby the enamelled wire of described two intersections is suspended in the spill district near its crosspoint and does not contact with convex shoulder.
2. inductance element as claimed in claim 1, it is characterized in that: described some electrode slices are plated on the lower surface of convex shoulder, and convex shoulder is provided with interval trough between adjacent two electrode slices.
3. inductance element as claimed in claim 2 is characterized in that: described convex shoulder comprises and is positioned at the innermost concave surface of interval trough, and described concave surface still is positioned at the below of cylindrical portion.
4. inductance element as claimed in claim 3 is characterized in that: the spill district of described convex shoulder comprises the slope of the concave surface that connects cylindrical portion to an interval trough, and the enamelled wire of described two intersections does not contact with the slope near the crosspoint.
5. inductance element as claimed in claim 1 is characterized in that: described convex shoulder has the groove that extends along cylindrical portion, and described electrode slice is electroplated and become the electrode slice groove in groove topography, and described end is soldered to the electrode slice groove.
6. inductance element as claimed in claim 5 is characterized in that: described two ends that intersect enamelled wires can be soldered to electrode slice along electrode slice groove bearing of trend.
7. inductance element as claimed in claim 5 is characterized in that: described two ends that intersect enamelled wires can be an angle with the electrode slice groove and be soldered to electrode slice.
8. inductance element as claimed in claim 1, it is characterized in that: described some enamelled wires comprise four enamelled wires, and wherein two enamelled wires are wound in iron core along clockwise two-wires, and other two enamelled wires are wound in iron core along counterclockwise two-wire.
9. inductance element as claimed in claim 1, it is characterized in that: described iron core is I-shaped iron core, and described inductance also comprises a cover plate iron core, and this cover plate is covered on the upper end of I-shaped iron core.
10. inductance element as claimed in claim 1, it is characterized in that: described inductance element can be used for a small-sized SMD pulse transformer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220325703 CN202711903U (en) | 2012-07-06 | 2012-07-06 | Inductance element |
| US13/591,252 US8686822B2 (en) | 2011-08-22 | 2012-08-22 | Surface mounted pulse transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220325703 CN202711903U (en) | 2012-07-06 | 2012-07-06 | Inductance element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202711903U true CN202711903U (en) | 2013-01-30 |
Family
ID=47592183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220325703 Expired - Fee Related CN202711903U (en) | 2011-08-22 | 2012-07-06 | Inductance element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202711903U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310947A (en) * | 2013-06-26 | 2013-09-18 | 华为技术有限公司 | Magnetic device |
| CN103745801A (en) * | 2014-01-14 | 2014-04-23 | 深圳顺络电子股份有限公司 | Pulse transformer and manufacturing method thereof |
| CN103887041A (en) * | 2014-01-14 | 2014-06-25 | 深圳顺络电子股份有限公司 | Surface-mounted type common-mode choker and manufacturing method thereof |
-
2012
- 2012-07-06 CN CN 201220325703 patent/CN202711903U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310947A (en) * | 2013-06-26 | 2013-09-18 | 华为技术有限公司 | Magnetic device |
| CN103745801A (en) * | 2014-01-14 | 2014-04-23 | 深圳顺络电子股份有限公司 | Pulse transformer and manufacturing method thereof |
| CN103887041A (en) * | 2014-01-14 | 2014-06-25 | 深圳顺络电子股份有限公司 | Surface-mounted type common-mode choker and manufacturing method thereof |
| CN103745801B (en) * | 2014-01-14 | 2016-04-20 | 深圳顺络电子股份有限公司 | A kind of pulse transformer and manufacture method thereof |
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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: 20130130 Termination date: 20180706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |