CN202134313U - Adjustable inductor - Google Patents
Adjustable inductor Download PDFInfo
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- CN202134313U CN202134313U CN201120040958U CN201120040958U CN202134313U CN 202134313 U CN202134313 U CN 202134313U CN 201120040958 U CN201120040958 U CN 201120040958U CN 201120040958 U CN201120040958 U CN 201120040958U CN 202134313 U CN202134313 U CN 202134313U
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- conductive
- magnetic core
- variable inductor
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Abstract
The utility model discloses an adjustable inductor, which comprises a substrate. A magnetic core is arranged on the upper surface of the substrate. The surface of the magnetic core is coated with an insulating layer and at least one winding. The winding is equipped with a plurality of sheet-shaped conductive turns sequentially connected with each other and respectively enclosed on the surface of the insulating layer. At least one part of the conductive turns is arranged between the upper surface of the substrate and the insulating layer. The coil effect is formed through the conductive turns and a magnetic core. At least one electrical connection layer is laid on the upper surface of the substrate and is arranged adjacent to the plurality of conductive turns. The electric connection layer is selectively spot-welded with any two conductive turn spots for forming an electric connection so as to lower the coil effect of the winding. When the inductance amount of the adjustable inductor needs to be reduced, two solder pastes are adopted. One solder paste is used for conductively connecting one of the conductive turns with the electric connection layer and the other solder paste is used for conductively connecting the other conductive turn with the electric connection layer. Therefore, the coil effect of the winding is lowered so as to reduce the inductance amount of the adjustable inductor.
Description
[technical field]
The utility model relates to a kind of variable inductor, refers to a kind of variable inductor that reduces inductance value especially.
[background technology]
The common a kind of inductor of industry comprises a substrate, is laid with a plurality of first conductive parts in said upper surface of base plate; One magnetic core, said magnetic core are located on the said substrate, and the surface of said magnetic core is coated with an insulating barrier, and the said insulating barrier correspondence of said magnetic core lower surface is positioned on a plurality of said first conductive parts; A plurality of second conductive parts; Be laid in said surface of insulating layer; And a plurality of said second conductive parts are positioned at upper surface, medial surface and the lateral surface of said insulating barrier at least; And corresponding and a plurality of said first conductive part solder bond, and said second conductive part and said first conductive part formation coil effect.
Owing to be laid with a plurality of said second conductive parts on the surface of said insulating barrier; Said second conductive part is located at upper surface, medial surface and the lateral surface of said insulating barrier; And corresponding a plurality of said second conductive parts are laid said a plurality of first conductive part on said substrate, though said first conductive part and the welding of said second conductive part can form the coil effect, thereby have inductance; But when practical application, need inductance value be reduced to meet demand sometimes.
To the structure of above-mentioned inductor, its inductance value is reduced, can utilize the scolder will the wantonly two said first conductive part electrical communication; Reducing its travel paths, but that said scolder need draw is very long, just can be with the wantonly two said first conductive part electrical communication; Yet in the process of crossing brazier, the oversize problem that occurs fracture easily of said scolder is because said scolder liquefy; Can be because cohesive force and englobement, and then can not guarantee the electrical effect of being scheduled to.
Therefore, in order to reach the purpose of adjustable sensibility reciprocal, be necessary said inductor is improved to overcome above-mentioned defective.
[utility model content]
The creation purpose of the utility model is to provide a kind of the utilization to increase by an electric connection layer so that reach the variable inductor that reduces the inductance value purpose.
In order to achieve the above object, the utility model variable inductor adopts following technical scheme:
A kind of variable inductor, it comprises a substrate; One magnetic core, said magnetic core is located at said upper surface of base plate, and the surface of said magnetic core is coated with an insulating barrier; At least one winding; Said winding has a plurality of conductive turns that connect in regular turn in the form of sheets and is located in said surface of insulating layer respectively; And part is between said upper surface of base plate and said insulating barrier at least for said conductive turns, and said conductive turns and said magnetic core form the coil effect; At least one electric connection layer is laid in said upper surface of base plate, and is provided with a plurality of said conductive turns next-door neighbours; By this, said electric connection layer selectively forms with wantonly two said conductive turns spot welding and electrically connects, and reduces the coil effect of said winding.
Compared with prior art; Owing to be laid with said electrics connection layer, when the user wants the inductance value of said variable inductor turned down, can utilize at least two tin creams or other conductive materials at said upper surface of base plate; Wherein a said tin cream connects a said conductive turns and said electric connection layer; Another said tin cream connects another said conductive turns and said electric connection layer, thereby reduces the coil effect of said winding, to reach the purpose that reduces inductance value.
In addition, because said electric connection layer and a plurality of said conductive turns next-door neighbour setting, so can utilize the mode of spot welding to weld between said tin cream and the said electric connection layer; Avoided when crossing brazier; The problem of fracture occurs, thereby guarantee the electrical effect of being scheduled to, and be convenient to processing.
[description of drawings]
Fig. 1 is the stereogram of the utility model variable inductor;
Fig. 2 is the vertical view of the utility model variable inductor;
The stereogram that Fig. 3 reduces for variable inductor inductance value among the utility model first embodiment;
Fig. 4 is the vertical view of Fig. 3;
The stereogram that Fig. 5 reduces for variable inductor inductance value among the utility model second embodiment;
Fig. 6 is the vertical view of Fig. 5.
The drawing reference numeral explanation of embodiment:
Winding 4 conductive turns 41 first conductive parts 411
Second conductive part, 412 links 413 electrically connect layer 5
Tin cream 6
[embodiment]
Purpose, structure, characteristic and effect etc. for ease of better understanding the utility model combine accompanying drawing and embodiment that the utility model variable inductor is described further at present.
Please see figures.1.and.2, be first embodiment of the utility model variable inductor, it comprises a substrate 1; One magnetic core 2, said magnetic core 2 are located at said substrate 1 upper surface, and the surface of said magnetic core 2 is coated with an insulating barrier 3; Two windings 4 (also can be a winding 4 or three windings 4 etc. in other embodiments); Each said winding 4 has in the form of sheets a plurality of conductive turns 41 that connect in regular turn and is located in said insulating barrier 3 surfaces respectively, and said conductive turns 41 parts are between said substrate 1 upper surface and said insulating barrier 3, and said conductive turns 41 forms the coil effects with said magnetic core 2; Two electrically connect layer 5 (also can electrically connect layer 5 etc. for an electric connection layer 5 or three in other embodiments); Be laid in said substrate 1 upper surface, and the 41 next-door neighbour's settings of a plurality of said conductive turns in corresponding respectively and each said winding 4, by this; Said electric connection layer 5 selectively with each said winding 4 in wantonly two said conductive turns 41 spot welding form electric connections, reduce the coil effect of said winding 4.
Please see figures.1.and.2, said magnetic core 2 is circular (also can be frame shape etc. in other embodiments), and the centre is the hollow setting.
Please see figures.1.and.2, each said winding 4 has upper surface, medial surface, lateral surface and the lower surface that a plurality of said conductive turns 41 are positioned at said insulating barrier 3.A plurality of said conductive turns 41 comprise a plurality of first conductive parts 411 and a plurality of second conductive parts 412 respectively; A plurality of said first conductive part, 411 correspondences connect and compose at least one wire loop with a plurality of said second conductive parts 412, and said wire loop is provided with connecting the external electrical signal along the outer peripheral edges spiral and said wire loop reservation at least two links 413 of said magnetic core 2.In other embodiments also can for, a plurality of said first conductive parts 411 are corresponding to connect and compose a plurality of wire loops with a plurality of said second conductive parts 412, each said wire loop evenly is laid on the said magnetic core 2 and said wire loop intercouples.A plurality of said first conductive parts 411 are laid in said substrate 1 upper surface at interval; The setting that all becomes band of each said first conductive part 411; A plurality of said first conductive part, 411 equal cambers in each winding 4 are arranged in said substrate 1 upper surface with said magnetic core 2 correspondences, and a plurality of said first conductive part 411 in said two windings 4 all is symmetrical set.Said insulating barrier 3 correspondences of said magnetic core 2 lower surfaces are positioned on a plurality of said first conductive parts 411.
In addition, 411 liang of free ends of each said first conductive part are revealed in the inside and outside peripheral region of said magnetic core 2 respectively.
A plurality of said second conductive parts 412 are laid in said insulating barrier 3 surfaces at interval; A plurality of said second conductive parts 412 utilize chemical treatment to be located on the said magnetic core 2; For example etching of said chemical treatment, transfer printing, MID chemical plating etc., but be not limited to etching, transfer printing, MID chemical plating.A plurality of said second conductive parts 412 are positioned at upper surface, medial surface and the lateral surface of said insulating barrier 3; And corresponding and a plurality of said first conductive part, 411 solder bond, and said second conductive part 412 forms the coil effect with said first conductive part 411 and said magnetic core 2.A plurality of said first conductive part, 411 correspondences in each said winding 4 connect and compose a wire loop with a plurality of said second conductive parts 412 and said magnetic core 2, so said two windings 4 constitute the two coil loops.Said two coil loop is for being symmetricly set on the said magnetic core 2; The outer peripheral edges spiral of the said magnetic core 2 in edge, said two coil loop and said two coil loop are reserved four links 413 and are provided with connecting the external electrical signal; So that said two coil loop constitutes resource loop and provide electric current to order about said two coil loop works; Produce magnetic field, can be used in the circuit structures such as rectification and filtering.Said two coil loop evenly is laid on the said magnetic core 2 and said two coil loop intercouples.
Please see figures.1.and.2, said electric connection layer 5 is laid in said substrate 1 upper surface, and said electric connection layer 5 roughly becomes arcuation and is provided with a plurality of said conductive turns 41 next-door neighbours, and simultaneously, said electric connection layer 5 is positioned at the outside of said magnetic core 2.
Please see figures.1.and.2; When making said variable inductor, earlier a plurality of said first conductive parts 411 are laid in said substrate 1 upper surface, more said insulating barrier 3 are coated on upper surface, medial surface, lateral surface and the lower surface of said magnetic core 2; Then; A plurality of said second conductive parts 412 are positioned at upper surface, medial surface and the lateral surface of said magnetic core 2, then, said magnetic core 2 correspondences are seated to the upper surface of said substrate 1; Make a plurality of said second conductive part, 412 corresponding and a plurality of said first conductive part, 411 solder bond; And said second conductive part 412 forms the coil effect with said first conductive part 411, afterwards, electrically connects layer 5 with said two and is laid in said substrate 1 upper surface.
Please with reference to Fig. 3 and Fig. 4; So far; Said variable inductor completes, and when the user wants the inductance value of said variable inductor turned down, can utilize two tin creams 6 (also can be other conductive materials in other embodiments); Wherein a said tin cream 6 connects said first conductive part 411 in the said winding 4 with said electric connection layer 5; Another said tin cream 6 connects another said first conductive part 411 in the same said winding 4 with said electric connection layer 5, wherein, said first conductive part 411 that connects mutually with said electric connection layer 5 is a said link 413; And said link 413 can connect with said electric connection layer 5 in the making said variable inductor stage mutually, thereby reduces the coil effect of said winding 4.
Please with reference to Fig. 5 and Fig. 6; Second embodiment for the utility model variable inductor; Itself and the first embodiment difference are that said variable inductor completes, when the user wants the inductance value of said variable inductor turned down; Can utilize said two tin creams 6; Wherein a said tin cream 6 connects said first conductive part 411 in the said winding 4 with said electric connection layer 5, and another said tin cream 6 connects another said first conductive part 411 in the same said winding 4 with said electric connection layer 5, thereby reduces the coil effect of said winding 4; Wherein, can connect mutually by not direct same said link 413 with said electric connection layer 5.
In sum, the utility model variable inductor has following advantage:
1. owing to be laid with said electric connection layer 5 at said substrate 1 upper surface; When the user wants the inductance value of said variable inductor turned down; Utilize said two tin creams 6; Wherein a said tin cream 6 connects said first conductive part 411 in the said winding 4 with said electric connection layer 5; Another said tin cream 6 connects another said first conductive part 411 in the same said winding 4 with said electric connection layer 5, thereby reduces the coil effect of said winding 4, to reach the purpose that reduces inductance value.
2. because said electric connection layer 5 and a plurality of said conductive turns 41 next-door neighbour's settings; So can utilize the mode of spot welding to weld between said tin cream 6 and the said electric connection layer 5, avoid when crossing brazier, the problem of fracture occurring; Thereby guarantee the electrical effect of being scheduled to, and be convenient to processing.
3. because said first conductive part 411 can form wire loop with 412 welding of said second conductive part, and therefore, said variable inductor is coiling in advance, can practice thrift a large amount of man power and materials and increase work efficiency.
4. because said variable inductor has said two windings 4, constitute said two coil loop coupling, can be used for realizing in the structure of function such as transformation.
5. because with said to electrically connect said first conductive part 411 that layer 5 connects mutually be a said link 413; And said link 413 can connect with said electric connection layer 5 in the making said variable inductor stage mutually; During the subsequent adjustment inductance value, operate easier like this.
6. when the user wants the inductance value of said variable inductor turned down; Can utilize said two tin creams 6; Wherein a said tin cream 6 connects said first conductive part 411 in the said winding 4 with said electric connection layer 5, and another said tin cream 6 connects another said first conductive part 411 in the same said winding 4 with said electric connection layer 5, thereby reduces the coil effect of said winding 4; Wherein, Can connect mutually by not direct same said link 413 with said electric connection layer 5, so can realize the repeatedly adjusting of inductance value, and easy and simple to handle.
More than specify the explanation of the preferred embodiment be merely the utility model, the claim of non-so limitation the utility model is so all this creation of utilization specifications and the equivalence techniques variation for it of diagramatic content institute all are contained in the claim of this creation.
Claims (9)
1. a variable inductor is characterized in that, comprising:
One substrate;
One magnetic core, said magnetic core is located at said upper surface of base plate, and the surface of said magnetic core is coated with an insulating barrier;
At least one winding; Said winding has a plurality of conductive turns that connect in regular turn in the form of sheets and is located in said surface of insulating layer respectively; And part is between said upper surface of base plate and said insulating barrier at least for said conductive turns, and said conductive turns and said magnetic core form the coil effect;
At least one electric connection layer is laid in said upper surface of base plate, and is provided with a plurality of said conductive turns next-door neighbours;
By this, said electric connection layer selectively forms with wantonly two said conductive turns spot welding and electrically connects, and reduces the coil effect of said winding.
2. variable inductor as claimed in claim 1 is characterized in that: a plurality of said conductive turns are positioned at upper surface, medial surface, lateral surface and the lower surface of said insulating barrier.
3. variable inductor as claimed in claim 1; It is characterized in that: each said conductive turns further comprises one first conductive part and one second conductive part; Said first conductive part is laid in said upper surface of base plate; The said insulating barrier correspondence of said magnetic core lower surface is positioned on a plurality of said first conductive parts, and said second conductive part is laid in said surface of insulating layer, and a plurality of said second conductive part is positioned at upper surface, medial surface and the lateral surface of said insulating barrier at least; And corresponding and a plurality of said first conductive part solder bond, and said second conductive part and said first conductive part formation wire loop.
4. variable inductor as claimed in claim 3; It is characterized in that: a plurality of said first conductive parts are corresponding to connect and compose at least one wire loop with a plurality of said second conductive parts, and said wire loop is provided with connecting the external electrical signal along the outer peripheral edges spiral and said wire loop reservation at least two links of said magnetic core.
5. variable inductor as claimed in claim 3; It is characterized in that: a plurality of said first conductive parts are corresponding to connect and compose a plurality of wire loops with a plurality of said second conductive parts, and each said wire loop evenly is laid on the said magnetic core and said wire loop intercouples.
6. variable inductor as claimed in claim 3 is characterized in that: a plurality of said first conductive parts are arranged at intervals at said upper surface of base plate.
7. variable inductor as claimed in claim 3 is characterized in that: a plurality of said second conductive parts are arranged at intervals at said surface of insulating layer.
8. variable inductor as claimed in claim 1 is characterized in that: said magnetic core is circular.
9. variable inductor as claimed in claim 1 is characterized in that: the said layer outside that is positioned at said magnetic core that electrically connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120040958U CN202134313U (en) | 2011-02-02 | 2011-02-02 | Adjustable inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120040958U CN202134313U (en) | 2011-02-02 | 2011-02-02 | Adjustable inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134313U true CN202134313U (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120040958U Expired - Fee Related CN202134313U (en) | 2011-02-02 | 2011-02-02 | Adjustable inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134313U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106558400A (en) * | 2016-11-29 | 2017-04-05 | 北京北广科技股份有限公司 | Array is adjustable cage PCB inductance |
| WO2019210539A1 (en) * | 2018-04-29 | 2019-11-07 | 深南电路股份有限公司 | Integrated transformer and electronic device |
| CN112201436A (en) * | 2020-09-17 | 2021-01-08 | 广东良友科技有限公司 | Firmly-welded flat wire vertically-wound inductor and packaging method thereof |
-
2011
- 2011-02-02 CN CN201120040958U patent/CN202134313U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106558400A (en) * | 2016-11-29 | 2017-04-05 | 北京北广科技股份有限公司 | Array is adjustable cage PCB inductance |
| CN106558400B (en) * | 2016-11-29 | 2018-11-02 | 北京北广科技股份有限公司 | Array is adjustable cage PCB inductance |
| WO2019210539A1 (en) * | 2018-04-29 | 2019-11-07 | 深南电路股份有限公司 | Integrated transformer and electronic device |
| CN112201436A (en) * | 2020-09-17 | 2021-01-08 | 广东良友科技有限公司 | Firmly-welded flat wire vertically-wound inductor and packaging 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: 20120201 Termination date: 20150202 |
|
| EXPY | Termination of patent right or utility model |