CN200986841Y - Choke coil - Google Patents
Choke coil Download PDFInfo
- Publication number
- CN200986841Y CN200986841Y CN 200620016716 CN200620016716U CN200986841Y CN 200986841 Y CN200986841 Y CN 200986841Y CN 200620016716 CN200620016716 CN 200620016716 CN 200620016716 U CN200620016716 U CN 200620016716U CN 200986841 Y CN200986841 Y CN 200986841Y
- Authority
- CN
- China
- Prior art keywords
- choking
- magnetic core
- housing
- shell
- ferrite
- 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 choking coil, which comprises a shell of volume; a screw coil comprising at least one group is arranged in the volume; a magnetic core is provided in the volume of the shell; a rabbet for electrode foot exertion is provided on the sidewall of the shell. The shell body is constructed by the ferrite and iron dust core material, which is divided into an upper and a lower shell bodies. The upper and the lower shell bodies are comminuted into the entirety by contact surface. An insulation plate is provided between the upper and lower shell bodies. The screw coil comprises an enameled wire or a plate line. The magnetic core in circular cylinder shape is fixed in the middle part of the cavity of shell body. The screw coil and the magnetic core are fixed together by splicing agent. The utility model has the advantages of good anti electromagnetic interference performance, durable for large electric current, reducing temperature rise, reducing cardinal plate space, simple structure and low costs.
Description
Technical field
The utility model design of electronic devices field is specifically related to a kind of choking-winding that is used for notebook computer, computer main board and VGA video card.
Background technology
At present, existing be applied on notebook computer, computer main board and the VGA video card the choking-winding structure usually as depicted in figs. 1 and 2, it is by a Fe
2O
3A ferrocart core A and an enameled wire loop B are integral compacting and constitute.When big current work, the temperature of magnetic core reaches 65 ℃ or above easy generation and splits phenomenon cruelly, and integrated choking-winding can only be limited to and uses Fe simultaneously
2O
3The ferrocart core material, its cost of manufacture costliness, and, because the restriction of material aspect, cause the frequency of product to be difficult to the requirement that reaches desirable.
The utility model content
Technical problem to be solved in the utility model is the defective that overcomes above-mentioned prior art, provides big, the anti-electromagnetic interference performance of a kind of anti-current strength good, can reduce temperature rise, and can reduce the space that it takies mainboard, choking-winding with low cost.
The technical scheme that the utility model proposed is:
A kind of choking-winding is characterized in that comprising:
Housing with a containing cavity;
At least one group of spiral coil that turns to hollow shape places in the described containing cavity;
Have one can hold spiral coil dress magnetic core thereon in the containing cavity of described housing, offer on the housing sidewall and can hold the notch that spiral coil two end electrodes pin stretches out.
Described housing can be divided into upper shell and lower house, and both contact end face and fit;
Described housing can be cube lid shape, and it adopts ferrite or ferrocart core material to constitute;
Described Ferrite Material can be manganese-zinc ferrite or nickel-zinc ferrite;
Binding face between the described upper and lower casing that is made of Ferrite Material is provided with insulating trip;
Described spiral coil is formed by the enamelled wire coiling, or is made of plate system circuit;
Described magnetic core places housing containing cavity centre position, and it is a flat column or cylindric; Described magnetic core and housing can adopt the Ferrite Material punch forming;
Pass through adhesive securement between described spiral coil and shell and the magnetic core.
Be different from prior art, when powerful electric current is through the utility model when main board for notebook computer MOS switch open, the electromagnetic induction of its generation can well usefulness work, can resist the interference of EMI electromagnetic interference and other electronic building brick, also can prevent leaking of the electromagnetic field of choking-winding own; Simultaneously, can also bear the process of hard intensity peak current, and problem of temperature rise has also obtained solution (＜40 ℃).In addition, when computer motherboard improves electric property, also reduced the volume of choking-winding widely.
The utility model structure and technology are simple, have also improved the fail safe that the circuit object touches.
Description of drawings
Fig. 1 is the forming stereo figure of the choking-winding of prior art;
Fig. 2 is the profile of the choking-winding of prior art;
Fig. 3 is the forming stereo figure of the utility model choking-winding;
Fig. 4 is the profile of the utility model choking-winding;
Fig. 5 is the parts explosion of the utility model choking-winding.
Among its figure:
A-Fe
2O
3Ferrocart core B-enameled wire loop
1-housing 1.1-upper shell 1.2-lower house
1.3-magnetic core 1.4-containing cavity 1.5-notch
2-coil 3-electrode pin 4-bonding agent
The 5-insulating trip
Embodiment
The utility model is the improvement of being carried out at the prior art defective.Fig. 3, Fig. 4, Fig. 5 have showed one of the utility model example structure, are elaborated below in conjunction with accompanying drawing.
As Fig. 3, Fig. 4, shown in Figure 5, the utility model comprises: housing 1 and coil 2, described housing 1 can adopt ferrite or the punch forming of ferrocart core material, and wherein Ferrite Material can be manganese-zinc ferrite or nickel-zinc ferrite, and it has the characteristics of high magnetic permeability and high magnetic flux density.Housing 1 shape can be cube or cuboid lid shape, and it has a containing cavity 1.4, offers notch 1.5 on the sidewall.There is cylindrical, a square or rectangle magnetic core 1.3 position between among the containing cavity 1.4 of described housing 1, and magnetic core 1.3 materials are identical with housing 1, can adopt the ferrite punch forming with 1 one-tenth of housing is whole; Also can be admittedly thereon by connector.Described coil 2 be provided with at least one group or more than, it adopts the enamelled wire spirally-wound, or is made of plate system circuit, has good insulation performance, to guarantee at the turn-to-turn of instantaneous overvoltage effect lower coil puncture short not taking place.Coil 2 coiled air core coils make up on the magnetic core 1.3 of containing cavity 1.4 centres that are loaded on shell 1, and there is electrode pin 3 at its two ends, and after the assembling, electrode pin 3 can be protruding from the notch on the housing 1 1.5, and convenience is connected with other components and parts.After described coil 2 was assemblied on the magnetic core 1.3, its outer surface also was coated with bonding agent 4 (insulating resin), was adhesively fixed with wall side within the shell 1 and magnetic core 1.3 lateral surfaces, made it to form a whole with it, and can guarantee the insulation of magnetic core 1.3 and coil 2.
As shown in Figure 5, described housing 1 can be made of upper shell 1.1 and lower house 1.2, all offer notch 1.5 on the upper and lower casing, the structure of upper and lower two housings and size can be identical, coil 2 and magnetic core 1.3 place in the inner chamber that upper and lower casing constitutes, and coil 2 outer surfaces are adhesively fixed by bonding agent 4 and upper shell 1.1 and lower house 1.2 inwall sides and magnetic core 1.3 lateral surfaces, and electrode pin 3 stretches out from notch 1.5, then that the contact end face of upper and lower casing is bonding, form an integral body.This structural design compares to being produced on the processing cost aspect and will reducing much of prior art choking-winding, and has reduced the difficulty of making, and also is convenient to processing and assembling simultaneously.When adopting ferrite as upper shell 1.1 and lower house 1.2 materials, the binding face between upper shell 1.1 and the lower house 1.2 need be provided with insulating trip 5, and can not need insulating trip between the upper and lower casing of ferrocart core material.Described insulating trip 5 can be adhesively fixed on respectively on upper shell 1.1 two end faces relative up and down with lower house 1.2 two end faces relative up and down with magnetic core 1.3, by changing the thickness of insulating trip 5, can also adjust the anti-electric current effect and the current strength of choking-winding.
The utility model can integral body be arranged in parallel when using.
Above-described only be the utility model preferred embodiment; it describes comparatively concrete and detailed; can not therefore be interpreted as restriction to the utility model claim; should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (9)
1, a kind of choking-winding is characterized in that comprising:
Housing with a containing cavity;
At least one group of spiral coil that turns to hollow shape places in the described containing cavity;
Have one can hold spiral coil dress magnetic core thereon in the containing cavity of described housing, offer on the housing sidewall and can hold the notch that spiral coil two end electrodes pin stretches out.
2, choking-winding according to claim 1 is characterized in that: described housing is divided into upper shell and lower house, and both contact end face and fit.
3, choking-winding according to claim 1 is characterized in that: described magnetic core places housing containing cavity centre position, and it is a flat column or cylindric.
4, choking-winding according to claim 1 is characterized in that: described spiral coil is formed by the enamelled wire coiling, or is made of plate system circuit.
5, according to claim 1 or 2 or 3 described choking-windings, it is characterized in that: described housing is cube lid shape, and it adopts ferrite or ferrocart core material to constitute.
6, choking-winding according to claim 5 is characterized in that: described Ferrite Material is manganese-zinc ferrite or nickel-zinc ferrite.
7, choking-winding according to claim 5 is characterized in that: the binding face between the described upper and lower casing that is made of Ferrite Material is provided with insulating trip.
8, according to claim 1 or 2 or 3 described choking-windings, it is characterized in that: described magnetic core and housing adopt the Ferrite Material punch forming.
9, according to claim 1 or 2 or 3 or 4 or 7 described choking-windings, it is characterized in that: pass through adhesive securement between described spiral coil and shell and the magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620016716 CN200986841Y (en) | 2006-12-22 | 2006-12-22 | Choke coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620016716 CN200986841Y (en) | 2006-12-22 | 2006-12-22 | Choke coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200986841Y true CN200986841Y (en) | 2007-12-05 |
Family
ID=38916299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620016716 Expired - Fee Related CN200986841Y (en) | 2006-12-22 | 2006-12-22 | Choke coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200986841Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427625A (en) * | 2011-09-20 | 2012-04-25 | 美的集团有限公司 | Power choke coil and electromagnetic induction heating device using the same |
| CN105374498A (en) * | 2015-12-18 | 2016-03-02 | 山东嘉诺电子有限公司 | EPOI-shaped multifunctional ferrite magnetic core and transformer |
| CN107004491A (en) * | 2014-12-10 | 2017-08-01 | 大陆泰密克微电子有限责任公司 | Filter assemblies and the voltage changer with filter assemblies |
| CN110211768A (en) * | 2019-07-04 | 2019-09-06 | 蓝田县祥达电子有限公司 | A kind of iron sial inductor |
| CN113889326A (en) * | 2021-09-30 | 2022-01-04 | 江苏蓝沛新材料科技有限公司 | Circuit board implanted magnetic powder molded inductor and preparation method thereof |
| CN108827358B (en) * | 2018-08-27 | 2023-11-14 | 朱亚军 | Instrument shell with filtering function |
-
2006
- 2006-12-22 CN CN 200620016716 patent/CN200986841Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427625A (en) * | 2011-09-20 | 2012-04-25 | 美的集团有限公司 | Power choke coil and electromagnetic induction heating device using the same |
| CN107004491A (en) * | 2014-12-10 | 2017-08-01 | 大陆泰密克微电子有限责任公司 | Filter assemblies and the voltage changer with filter assemblies |
| US10097083B2 (en) | 2014-12-10 | 2018-10-09 | Conti Temic Microelectronic Gmbh | Filter assembly, voltage converter having a filter assembly |
| CN107004491B (en) * | 2014-12-10 | 2019-08-13 | 大陆泰密克微电子有限责任公司 | Filter assemblies and voltage changer with filter assemblies |
| CN105374498A (en) * | 2015-12-18 | 2016-03-02 | 山东嘉诺电子有限公司 | EPOI-shaped multifunctional ferrite magnetic core and transformer |
| CN108827358B (en) * | 2018-08-27 | 2023-11-14 | 朱亚军 | Instrument shell with filtering function |
| CN110211768A (en) * | 2019-07-04 | 2019-09-06 | 蓝田县祥达电子有限公司 | A kind of iron sial inductor |
| CN113889326A (en) * | 2021-09-30 | 2022-01-04 | 江苏蓝沛新材料科技有限公司 | Circuit board implanted magnetic powder molded inductor and preparation method thereof |
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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: 20071205 Termination date: 20131222 |