CN201051433Y - A choke loop - Google Patents
A choke loop Download PDFInfo
- Publication number
- CN201051433Y CN201051433Y CNU2007201203244U CN200720120324U CN201051433Y CN 201051433 Y CN201051433 Y CN 201051433Y CN U2007201203244 U CNU2007201203244 U CN U2007201203244U CN 200720120324 U CN200720120324 U CN 200720120324U CN 201051433 Y CN201051433 Y CN 201051433Y
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- China
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- magnetic patch
- choking
- utility
- model
- coil
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Abstract
The utility model discloses a choking coil, which comprises a first magnetic patch and a second magnetic patch. The first magnetic patch is provided with a U-shaped coil groove for receiving a U-shaped coil, and the pole feet at both ends of the U-shaped coil appear outside the lower surface of the first magnetic patch, and the upper surface of the first magnetic patch and the second magnetic patch are stuck together via an insulating sheet. The external surface of the U-shaped coil is twisted by an enameled wire layer. When a strong current passes through the choking coil, the choking coil generates electromagnetic induction to suppress EMI electromagnetic interferences and the interferences of other electronic building bricks. The utility model also can prevent the electromagnetic field of the choking coil from leaking, reduce eddy current loss, and resolve the problem of temperature elevation. The utility model is characterized in that the volume of the choking coil is greatly reduced, the manufacture process is simple, the material loss is reduced, and the safety of circuits is increased, and the utility model can be widely applied to computer mainboards and computer interfaces and other equipment.
Description
Technical field
The utility model belongs to the choking-winding technical field, relates in particular to a kind of choking-winding that is applied to computer motherboard or computer interface equipment.
Background technology
In recent years, in order to make industrial equipment and household electrical appliance reduce volume, size and to increase performance, use the integrated semiconductor circuit panel assembly more and more widely.In order to reduce temperature rise and vortex phenomenon, be typically provided with choking-winding on the integrated semiconductor circuit plate.At present, the structure that is applied in the choking-winding on the computer motherboard usually as shown in Figure 1, Fig. 1 is the forming stereo schematic diagram of conventional choke coil, this choking-winding is to be twined by one " mouth " type shell magnetic core a, a circle or square bar magnet b and an enamelled wire c to combine, the temperature of shell magnetic core a reaches about 65 ℃ when big current work, temperature rise ratio is bigger, and the copper loss of coil is big like this, has wasted the energy.
The utility model content
The utility model is to overcome the deficiencies in the prior art, provide big, the anti-EMI electromagnetic interference performance of a kind of anti-current strength good, can reduce temperature rise and vortex phenomenon and can reduce it and take the space of mainboard and the choking-winding of material deterioration inside.
For solving the problems of the technologies described above, the utility model is by the following technical solutions: a kind of choking-winding, comprise first magnetic patch and second magnetic patch, described first magnetic patch is provided with " U " shape coil groove, be mounted with " U " shape coil in " U " shape coil groove, the electrode pin at " U " shape coil two ends is exposed at outside the first magnetic patch lower surface, and the first magnetic patch upper surface is bonded together by the insulating trip and second magnetic patch; Described " U " shape coil outer surface is wound with the enamelled wire layer.
Described first magnetic patch, second magnetic patch are the magnetic patch of the cuboid shape that is superimposed as of magnetic chip.
Preferably, the magnetic chip of described first magnetic patch, second magnetic patch is the ferrite magnetic chip.
Preferably, described first magnetic patch is provided with two storage tanks that run through upper and lower two surfaces, and two straightways of storage tank and " U " shape coil groove are adjacent and be communicated with, and described storage tank is shaped as rectangular-shaped.
The utility model compared with prior art, because first magnetic patch is provided with " U " shape coil groove, be mounted with " U " shape coil in " U " shape coil groove, first magnetic patch is provided with two storage tanks that run through upper and lower two surfaces, two straightways of storage tank and " U " shape coil groove are adjacent and be communicated with, powerful electric current is through this choking-winding when computer motherboard MOS switch open, choking-winding produces electromagnetic induction and can well work, the interference of EMI electromagnetic interference and other electronic building brick can be resisted, also leaking of the electromagnetic field of choking-winding own can be prevented; Simultaneously, can lack eddy current loss with Minus when bearing the hard intensity peak current equally, and problem of temperature rise has also obtained solution (＜30 ℃); In addition, when computer motherboard improves electric property, also reduced the volume of choking-winding widely, not only manufacturing process is simple, and the fail safe of having saved the consume of material and having improved the circuit object.
Description of drawings
Fig. 1 is the forming stereo schematic diagram of conventional choke coil;
Fig. 2 is the structural representation of the utility model choking-winding;
Fig. 3 is the parts explosion of Fig. 2;
Fig. 4 is the structural representation of " U " shape coil among Fig. 3.
Embodiment
In order to understand the utility model better, the utility model is done to describe further below in conjunction with accompanying drawing.
See also Fig. 2, Fig. 3 and Fig. 4, choking-winding of the present utility model, comprise first magnetic patch 1 and second magnetic patch 2, first magnetic patch 1 is provided with " U " shape coil groove 101, be mounted with " U " shape coil 3 in " U " shape coil groove 101, the electrode pin 301,302 at " U " shape coil 3 two ends is exposed at outside the first magnetic patch lower surface 102, and the first magnetic patch upper surface 103 is bonded together by the insulating trip 4 and second magnetic patch 2; " U " shape coil 3 outer surfaces are wound with enamelled wire layer 303, can well realize insulation.First magnetic patch 1, second magnetic patch 2 are magnetic patch of the cuboid shape that is superimposed as of magnetic chip, and in order to reduce loss, magnetic chip is ferrite (NiZn or MnZn) magnetic chip, and magnetic patch is by ferrite (NiZn or MnZn) magnetic chip punch forming; First magnetic patch 1 is provided with two storage tanks 104,105 that run through upper and lower two surfaces 102,103, can reduce material cost like this, two straightways of storage tank 104,105 and " U " shape coil groove 101 are adjacent and be communicated with, and storage tank 104,105 is shaped as rectangular-shaped.
The utility model can be adjusted the anti-electric current effect and the current strength of choking-winding by the thickness that changes insulating trip, and suitable insulating trip can be set according to different situations.
Although by above embodiment the utility model is disclosed, protection range of the present utility model is not limited to this, all belongs to protection range of the present utility model in the replacement that is equal to that does not depart under the utility model design condition.
Claims (5)
1. choking-winding, it is characterized in that, comprise first magnetic patch and second magnetic patch, described first magnetic patch is provided with " U " shape coil groove, be mounted with " U " shape coil in " U " shape coil groove, the electrode pin at " U " shape coil two ends is exposed at outside the first magnetic patch lower surface, and the first magnetic patch upper surface is bonded together by the insulating trip and second magnetic patch; Described " U " shape coil outer surface is wound with the enamelled wire layer.
2. choking-winding according to claim 1 is characterized in that, described first magnetic patch, second magnetic patch are the magnetic patch of the cuboid shape that is superimposed as of magnetic chip.
3. choking-winding according to claim 2 is characterized in that, the magnetic chip of described first magnetic patch, second magnetic patch is the ferrite magnetic chip.
4. according to each described choking-winding of claim 1～3, it is characterized in that described first magnetic patch is provided with two storage tanks that run through upper and lower two surfaces, two straightways of storage tank and " U " shape coil groove are adjacent and be communicated with.
5. choking-winding according to claim 4 is characterized in that described storage tank is shaped as rectangular-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201203244U CN201051433Y (en) | 2007-05-24 | 2007-05-24 | A choke loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201203244U CN201051433Y (en) | 2007-05-24 | 2007-05-24 | A choke loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201051433Y true CN201051433Y (en) | 2008-04-23 |
Family
ID=39337926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201203244U Expired - Fee Related CN201051433Y (en) | 2007-05-24 | 2007-05-24 | A choke loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201051433Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917838A (en) * | 2010-08-31 | 2010-12-15 | 无锡市凯旋电机有限公司 | Device for reducing electromagnetic interference and radiation of micro motor |
-
2007
- 2007-05-24 CN CNU2007201203244U patent/CN201051433Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917838A (en) * | 2010-08-31 | 2010-12-15 | 无锡市凯旋电机有限公司 | Device for reducing electromagnetic interference and radiation of micro motor |
| CN101917838B (en) * | 2010-08-31 | 2012-08-08 | 无锡市凯旋电机有限公司 | Device for reducing electromagnetic interference and radiation of micro motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20130524 |