CN201812626U - Inductance structure - Google Patents
Inductance structure Download PDFInfo
- Publication number
- CN201812626U CN201812626U CN2010205560685U CN201020556068U CN201812626U CN 201812626 U CN201812626 U CN 201812626U CN 2010205560685 U CN2010205560685 U CN 2010205560685U CN 201020556068 U CN201020556068 U CN 201020556068U CN 201812626 U CN201812626 U CN 201812626U
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- China
- Prior art keywords
- induction structure
- iron
- circuit board
- cell body
- core workpiece
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Abstract
The utility model provides an inductance structure, belonging to the field of electronics. The inductance structure is arranged in a pit of a circuit board and comprises an iron core, a support block and a connecting unit, wherein the iron core can be used for being wound with multiple turns of lead, the support block is fixedly arranged on the iron core, the connecting unit comprises an accommodation groove body, two clamping columns, a fixed frame and a plurality of wrapping posts, the two clamping columns are fixedly arranged in the accommodating groove body, correspond to the support block and can clamp and fix the support block when the iron core is arranged in the accommodating groove body, the fixed frame is arranged outside the accommodating groove body and can be connected to the circuit board around the pit so that the accommodating groove body is located in the pit of the circuit board, and the plurality of wrapping posts are arranged on the fixed frame and used for being wound with multiple turns of leads; and therefore, the inductance structure is thinned.
Description
Technical field
The utility model belongs to electronic applications, is about a kind of induction structure, particularly about in a kind of pothole that is fixed on circuit board by sinking, and reaches the induction structure of slimming effect.
Background technology
Mixed various high-frequency circuits, digital circuit and analog circuit on the mainboard of computer-internal, their work the time can produce a large amount of frequency electromagnetic waves and interfere with each other, Here it is EMI (Electromagnetic interference).Generally speaking, wiring that EMI can be by mainboard or external cable and outwards emission causes the electromagnetic radiation pollution of periphery, this not only can influence other electronic equipment operate as normal, also may be harmful.
In order to eliminate or reduce the interference of EMI, can adopt a kind of induction structure that is called common mode inductance (Common modeChoke) usually, be used for filtering the electromagnetic interference signal in the computer, and be used for suppressing the electromagenetic wave radiation that HW High Way produces.See also Figure 1A, Figure 1A illustrate is the operation principle schematic diagram of prior art induction structure.Shown in Figure 1A, an induction structure 9 surrounds into multiturn coil 921 by a lead 92 respectively at the right and left of an iron-core workpiece 91.Those coils 921 are centered around on the same iron-core workpiece 91, and the number of turn, phase place are all identical, but, opposite around circle direction and the right coil 921 of left side coil 921 around the circle direction.Therefore, when the normal current in the circuit is flowed through this induction structure 9, cancel out each other in the magnetic field 8 that electric current can be produced because of the inductance coil 921 of same-phase coiling.So, when common mode current flowing through coil 921, because the same tropism of common mode current, understand the induction reactance that in coil 921, produces magnetic field 8 in the same way and increase coil 921, make coil 921 show as high impedance, produce stronger damping, with this attenuation common-mode electric current, achieve the goal.
Aforesaid induction structure 9 comes down to a two-way device: on the one hand can the online common mode electromagnetic interference of filtered signal, can also inhibition itself outwards not send electromagnetic interference on the other hand, avoid influencing the operate as normal of other electronic equipments under the same electromagnetic environment; Therefore this induction structure 9 is widely used in the electronic equipment.
Yet because the volume of this induction structure 9 is bigger, thickness is thicker, therefore is unfavorable for the requirement of electronic building brick miniaturization nowadays, slimming.See also Figure 1B, Figure 1B illustrate is the assembly assumption diagram of prior art induction structure.Shown in Figure 1B, this induction structure 9 and this iron-core workpiece size on x axle, y axle, z axle is all too big, if this induction structure 9 is mounted on the circuit board (not illustrating), no matter by any way or any direction setting, all can't satisfy the requirement of its slimming.Also have, when this induction structure 9 was fixed on circuit board, it was not good usually to produce fixed effect yet, the phenomenon of rocking easily, coming off.
Therefore, how making this induction structure have the effect of slimming with combining of circuit board, and reach stable bond, well secured target, is the target that those skilled in the art make great efforts.
The utility model content
The utility model main purpose makes induction structure have the effect of slimming with combining of circuit board.
Another purpose of the utility model is to make induction structure and combining of circuit board can reach stable bond, well secured target.
In order to reach above-mentioned purpose, the utility model provides a kind of induction structure, and it is used for being arranged in the pothole of a circuit board, and this induction structure includes an iron-core workpiece, a back-up block and a linkage unit.This iron-core workpiece can be used to twine the multiturn lead, this back-up block is installed on this iron-core workpiece, this linkage unit includes a ccontaining cell body, two clamp column, one fixed mount and a plurality of wrapping post, two clamp column are installed in this ccontaining cell body, and it is corresponding with this back-up block, in the time of in this iron-core workpiece is seated in this ccontaining cell body, but two clamp column clampings are also fixed this back-up block, this fixed mount is positioned at the external side of this storage tank, can be used to be connected on the circuit board of this pothole periphery, and make this storage tank body be positioned at the pothole of this circuit board, a plurality of wrapping posts are arranged on this fixed mount, can be used to twine the multiturn lead; Therefore, this induction structure can reach the effect of slimming.
Aforesaid induction structure, wherein, this iron-core workpiece is circular, and this back-up block is arranged on the center of this circular iron-core workpiece, and the space in this ccontaining cell body is cylindric; Therefore, this circular iron-core workpiece can arrange in pairs or groups mutually with this ccontaining cell body cylindraceous and combine.
Aforesaid induction structure, wherein, the structure that this ccontaining cell body, two clamp column and this fixed mount are formed in one; Therefore, can less expensive, manufacturing means fast implement the volume production of this linkage unit.
Aforesaid induction structure, wherein, two clamp column are the tight fit state with combining of this back-up block; Therefore, this iron-core workpiece can see through this ccontaining cell body, two clamp column stably combine with this linkage unit with this back-up block.
Aforesaid induction structure, wherein, this fixed mount and this circuit board by welding, some gluing connect, screw is tightly locked or engage mode and fix; Therefore, can be used to strengthen the mechanical strength that combines of this linkage unit and this circuit board.
Therefore, induction structure described in the utility model can be avoided the phenomenon that shakes, come off.Also have, therefore this induction structure has the advantage of slimming because be the structure of sunk type.
For making those skilled in the art understand the purpose of this utility model, feature and effect, by following specific embodiment, and conjunction with figs., to the utility model illustrate in detail as after.
Description of drawings
Figure 1A illustrate is the operation principle schematic diagram of prior art induction structure.
Figure 1B illustrate is the assembly assumption diagram of prior art induction structure.
Fig. 2 A illustrate combines schematic diagram into the utility model induction structure with the decomposition of circuit board.
Fig. 2 B illustrate is the linkage unit schematic diagram of the utility model induction structure.
Fig. 3 illustrate is the utility model induction structure and the profile of circuit board after combining.
Fig. 4 illustrate is the utility model induction structure and the stereogram of circuit board after combining.
The primary clustering symbol description:
8: magnetic field
9: induction structure
91: iron-core workpiece
92: lead
921: coil
1: induction structure
11: iron-core workpiece
12: back-up block
13: linkage unit
131: ccontaining cell body
131A: cell body bottom surface
131B: cell body sidewall
131C: metallic channel
132: clamp column
133: fixed mount
134: wrapping post
7: circuit board
71: pothole
Embodiment
Please consult Fig. 2 A and Fig. 2 B simultaneously, Fig. 2 A illustrate combines schematic diagram into the utility model induction structure with the decomposition of circuit board, and Fig. 2 B illustrate is the linkage unit schematic diagram of the utility model induction structure.Shown in Fig. 2 A and Fig. 2 B, an induction structure 1, it is used for being arranged in the pothole 71 of a circuit board 7, and this induction structure 1 includes an iron-core workpiece 11, a back-up block 12 and a linkage unit 13.This iron-core workpiece 11 can be used to twine multiturn lead (not illustrating), and by the permeance of this iron-core workpiece 11, the formed coil of multiturn lead just can form the electronic building brick with inductive effect with this iron-core workpiece 11.This back-up block 12 is installed on this iron-core workpiece 11, and in the present embodiment, this iron-core workpiece 11 is circular, and this back-up block 12 is arranged on the center of this circular iron-core workpiece 11.This linkage unit 13 includes a ccontaining cell body 131, two clamp column 132, a fixed mount 133 and a plurality of wrapping post 134.This ccontaining cell body 131 is made of a cell body sidewall 131B and a cell body bottom surface 131A, and is the tubular open structure of a profile summary.This cell body sidewall 131B is provided with two metallic channel 131C, and this metallic channel 131C can allow the lead that is wrapped on this iron-core workpiece 11 pass through.These ccontaining cell body 131 volume inside can be cylindric, so this iron-core workpiece 11 can be seated in this ccontaining cell body cylindraceous 131 inside.Two clamp column 132 are installed in this tank body bottom surface 131A top, and corresponding with this back-up block 12; When this iron-core workpiece 11 moves down when being seated in this ccontaining cell body 131, but two clamp column, 132 clampings and fix this back-up block 12.So, this iron-core workpiece 11 can see through this ccontaining cell body 131, two clamp column 132 stably combine with this linkage unit 13 with this back-up block 12.This fixed mount 133 is positioned at this ccontaining cell body 131 outsides, can be used to be connected on the circuit board 7 of these pothole 71 peripheries, shown in Fig. 2 A, this fixed mount 133 is placed this pothole 71 tops, again this linkage unit 13 is moved down, this ccontaining cell body 131 can be arranged in the pothole 71 of this circuit board 7.Therefore in a preferred embodiment, the structure that this ccontaining cell body 131, two clamp column 132 and this fixed mount 133 are formed in one can less expensive, manufacturing means fast implement the volume production of this linkage unit 13.Also have, two clamp column 132 can be tight fit state (interference fit) with combining of this back-up block 12, so can strengthen the mechanical strength that combines of this iron-core workpiece 11 and this ccontaining cell body 131 further.
See also Fig. 3 again, Fig. 3 illustrate is the utility model induction structure and the profile of circuit board after combining.As shown in Figure 3, when this linkage unit 13 combined with this circuit board 7, this fixed mount 133 was in close proximity to circuit board 7 tops of these pothole 71 peripheries; This iron-core workpiece 11 is in close proximity to this cell body bottom surface 131A top, and the outer rim of this iron-core workpiece 11 is then adjacent with this cell body sidewall 131B, and is fixed by this back-up block 12 of two clamp column, 132 clampings.In addition, because this ccontaining cell body 131 all sinks with this iron-core workpiece 11 and is fixed in this pothole 71, this ccontaining cell body 131 roughly is positioned on the sustained height of this circuit board 7 with this iron-core workpiece 11, when therefore this induction structure 1 combines with this circuit board 7, thickness can be too not thick, can reach the effect of slimming.
See also Fig. 4, Fig. 4 illustrate is the utility model induction structure and the stereogram of circuit board after combining.As shown in Figure 4, finish with this linkage unit 13 when this iron-core workpiece 11 and to combine, and when being seated in the pothole 71 of this circuit board 7, this linkage unit 13 is joined with this circuit board 7 by the bigger fixed mount 133 of area, and its ways of connecting can be connect by welding, some gluing, screw is tightly locked or engaging mode and fixing.Also have, a plurality of wrapping posts 134 are arranged on this fixed mount 133, therefore can be used to guide the multiturn lead (not illustrating) that is wrapped on this iron-core workpiece 11; So the path of this lead is: be wrapped in earlier on this iron-core workpiece 11, pass through this metallic channel 131C again after, be wrapped at last on this wrapping post 134, finish the coiling of lead.Certainly, in other embodiments, this iron-core workpiece also can be other shapes, for example square or rectangle; Accordingly, the space in this ccontaining ccontaining cell body can be square or rectangle.
In sum, induction structure 1 described in the utility model can firmly be combined in the pothole 71 of this circuit board 7 by this linkage unit 13, avoids the phenomenon that shakes, comes off.Also have, this induction structure 1 can embed in the pothole 71 of this circuit board 7 because be the structure of sunk type, therefore has the advantage of slimming.
Though the utility model is open in above-mentioned specific embodiment; right its disclosed specific embodiment is not to be used for limiting the utility model; any those skilled in the art are not in breaking away from spirit and scope of the present utility model; all can do various modifications and retouching; its modification of doing all belongs to category of the present utility model with retouching, and protection range of the present utility model is as the criterion when looking accompanying the claim person of defining.
Claims (7)
1. an induction structure is characterized in that, is used for being arranged in the pothole of a circuit board, and this induction structure comprises:
One iron-core workpiece, this iron-core workpiece can be used to twine the multiturn lead;
One back-up block, this back-up block are installed on this iron-core workpiece;
One linkage unit, this linkage unit includes a ccontaining cell body, two clamp column, a fixed mount and a plurality of wrapping post, two clamp column are installed in this ccontaining cell body, and it is corresponding with this back-up block, in the time of in this iron-core workpiece is seated in this ccontaining cell body, but two clamp column clampings are also fixed this back-up block, this fixed mount is positioned at the external side of this storage tank, can be used to be connected on the circuit board of this pothole periphery, and make this storage tank body be positioned at the pothole of this circuit board, a plurality of wrapping posts are arranged on this fixed mount, can be used to twine the multiturn lead; Therefore, this induction structure can reach the effect of slimming.
2. induction structure as claimed in claim 1 is characterized in that this iron-core workpiece is circular.
3. induction structure as claimed in claim 2 is characterized in that this back-up block is arranged on the center of this circular iron-core workpiece.
4. induction structure as claimed in claim 2 is characterized in that, the space in this ccontaining cell body is cylindric.
5. induction structure as claimed in claim 1 is characterized in that, the structure that this ccontaining cell body, two clamp column and this fixed mount are formed in one.
6. induction structure as claimed in claim 1 is characterized in that, two clamp column are the tight fit state with combining of this back-up block.
7. induction structure as claimed in claim 1 is characterized in that, this fixed mount and this circuit board by welding, some gluing connect, screw is tightly locked or engage mode and fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205560685U CN201812626U (en) | 2010-10-08 | 2010-10-08 | Inductance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205560685U CN201812626U (en) | 2010-10-08 | 2010-10-08 | Inductance structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812626U true CN201812626U (en) | 2011-04-27 |
Family
ID=43895565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205560685U Expired - Fee Related CN201812626U (en) | 2010-10-08 | 2010-10-08 | Inductance structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426899A (en) * | 2011-12-21 | 2012-04-25 | 天津光电惠高电子有限公司 | High-frequency inductor |
-
2010
- 2010-10-08 CN CN2010205560685U patent/CN201812626U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426899A (en) * | 2011-12-21 | 2012-04-25 | 天津光电惠高电子有限公司 | High-frequency inductor |
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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: 20110427 Termination date: 20131008 |