CN204668104U - Inductor - Google Patents
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- CN204668104U CN204668104U CN201520350699.4U CN201520350699U CN204668104U CN 204668104 U CN204668104 U CN 204668104U CN 201520350699 U CN201520350699 U CN 201520350699U CN 204668104 U CN204668104 U CN 204668104U
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Abstract
The utility model relates to a kind of inductor, comprise electrode, core assembly, the internal coil being positioned at core assembly and sheet metal, at least one side of sheet metal is concordant with the periphery of core assembly, internal coil is provided with at least two coil exits, coil exit and sheet metal are electrically connected, electrode is arranged on the periphery of core assembly, the lateral parts that sheet metal is concordant with core assembly periphery or be all coated with electrode.After two coil exits of internal coil are first connected with sheet metal, then be electrically connected by sheet metal and electrode.Because the coil end cross section of the traditional inductor of the outside section ratio of sheet metal is much larger, so this structure can improve the connection reliability of internal coil and electrode greatly, ensure the quality of product, improve the stability of work.
Description
Technical field
The utility model relates to inductance element technical field, particularly relates to a kind of inductor.
Background technology
Inductor is also called inductance coil, is one of primary element of composition electronic circuit, is widely used in electronic circuit.At present, SMT Inductor is a kind of conventional inductor, has good application prospect.For traditional coil internally-arranged type SMT Inductor, internal coil end extends side, magnet ring two ends, then by forming welding electrode in magnet ring bottom surface and the plating of side, two ends.Due to the connection only inner cross section of putting coil end of internal coil and electrode, its bonding area is very little, and quality of fit requires high, easily causes engaging force not enough or engage bad, causes inductor thus produce the quality problem such as open circuit, poor work stability.
Utility model content
The purpose of this utility model is to provide a kind of inductor, can improve the reliability of internal coil and Electrode connection, and ensure the quality of product, job stability is high.
For realizing the purpose of this utility model, the technical scheme taked is:
A kind of inductor, comprise electrode, core assembly, the internal coil being positioned at core assembly and sheet metal, at least one side of sheet metal is concordant with the first side of core assembly, internal coil is provided with at least two coil exits, coil exit and sheet metal are electrically connected, electrode is arranged on the first side, the lateral parts that sheet metal is concordant with the first side or be all coated with electrode.
After two coil exits of internal coil are first connected with sheet metal, then be electrically connected by sheet metal and electrode.Because the coil end cross section of the traditional inductor of the outside section ratio of sheet metal is much larger, so this structure can improve the connection reliability of internal coil and electrode greatly, ensure the quality of product, improve the stability of work.
Below technical scheme is further illustrated:
Be further, core assembly comprises magnetic sheet, magnet ring, magnetic post and lower magnetic sheet, magnetic post is arranged with internal coil, internal coil is sheathed in magnet ring, upper magnetic sheet is located at the upper surface of magnet ring, and lower magnetic sheet is located at the lower surface of magnet ring, and sheet metal is held between magnetic sheet and upper surface or/and between lower magnetic sheet and lower surface, magnet ring is provided with described first side, and electrode is covered on the first side by the mode of plating.Upper magnetic sheet and lower magnetic sheet are covered in two end faces up and down of magnet ring respectively to form closed-flux structure; Sheet metal to be held between magnetic sheet and upper surface or/and between lower magnetic sheet and lower surface, make compact conformation, facilitates electrode to be covered on the periphery of magnet ring by the mode of plating.
Further, upper magnetic sheet is provided with second side concordant with the first side, and lower magnetic sheet is provided with three side concordant with the second side, and electrode is covered on the second side and the 3rd side by the mode of plating.Electrode is covered on the first side, the second side and the 3rd side by the mode of plating simultaneously, can adhesion between intensifier electrode and magnet assembly and increase electrode itself can the face of weld long-pending.
Further, the end face of upper magnetic sheet is provided with the first regional area be connected with the first side, and the bottom surface of lower magnetic sheet is provided with the second regional area be connected with the second side, and electrode is covered on the first regional area and the second regional area by the mode of plating.Electrode is covered on the first side, the second side, the first regional area, the 3rd side and the second regional area by the mode of plating simultaneously, is completely fixed on core assembly, makes the more compact structure of inductor after making electrode plating.Can adhesion further between intensifier electrode and magnet assembly and increase electrode itself can the face of weld long-pending.
Further, electrode comprises interior electrode and external electrode, and interior electrode and sheet metal are electrically connected, and external electrode is close to interior electrode periphery.Interior electrode outer surface generation corrosion can be prevented, extend the useful life of electrode; And electrode comprises inside and outside two-layer electrode, make the thickness of electrode thicker, structure is more firm.
Further, the U-shaped profile of interior electrode, the cross section of external electrode is L-shaped.Make electrode be completely fixed on core assembly, make the more compact structure of inductor.
Further, the periphery of sheet metal is arranged with several connectivity slots.Be conducive to bonding when pressing of upper magnetic sheet and magnet ring, lower magnetic sheet and magnet ring by connectivity slot, in enhancing, the adhesion of magnetic sheet and magnet ring, lower magnetic sheet and magnet ring, makes overall structure more firm.
Further, sheet metal is also provided with several through holes.Be beneficial to bonding when pressing of upper magnetic sheet and magnet ring, lower magnetic sheet and magnet ring by through hole, in enhancing, the adhesion of magnetic sheet and magnet ring, lower magnetic sheet and magnet ring, makes overall structure more firm.
Compared with prior art, the utility model has following beneficial effect:
After two coil exits of the utility model internal coil are first connected with sheet metal, then be electrically connected by sheet metal and electrode.Because the coil end cross section of the traditional inductor of the outside section ratio of sheet metal is much larger, so this structure can improve the connection reliability of internal coil and electrode greatly, ensure the quality of product, improve the stability of work.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment inductor;
Fig. 2 is the explosive view of the utility model embodiment inductor;
Fig. 3 is electrode zone schematic diagram in the plating of the utility model embodiment;
Fig. 4 is the A direction view of Fig. 3;
Fig. 5 is the structural representation of the utility model embodiment magnet ring;
Fig. 6 is the first structural representation of the utility model embodiment sheet metal;
Fig. 7 is the second structural representation of the utility model embodiment sheet metal.
Description of reference numerals:
10. electrode, electrode in 101., 102. external electrode, 110. first electrodes, 120. second electrodes, 20. core assemblies, magnetic sheet on 210., 211. second sides, 2111. the 3rd plating sides, 2112. the 4th plating sides, 212. end face, 2121. first end face regional areas, 2122. second end face regional areas, 220. magnet ring, 221. upper surface, 222. lower surface, 223. first sides, 2231. first plating sides, 2232. second plating sides, 230. magnetic posts, 240. times magnetic sheets, 241. the 3rd sides, 2411. the 5th plating sides, 2412. the 6th plating sides, 242. bottom surface, 2421. first bottom surface regional areas, 2422. second bottom surface regional areas, 30. internal coil, 310. coil exits, 40. sheet metals, 401. connectivity slot, 402. through hole, 403. bayonet socket, 410. first sheet metals, 420. second sheet metals, 50. epoxy protection film.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail:
As depicted in figs. 1 and 2, a kind of inductor, comprise electrode 10, core assembly 20, the internal coil 30 being positioned at core assembly 20 and sheet metal 40, the side of sheet metal 40 is concordant with the first periphery, side 223 of core assembly 20, internal coil 30 is provided with two coil exits 310, electrode 10 is arranged on the first side 223, and sheet metal 40 side concordant with the first side 223 is all coated with electrode 10.
After two coil exits 310 of internal coil 30 are first connected with sheet metal 40, then be electrically connected by sheet metal 40 and electrode 10.Because the coil end cross section of the traditional inductor of the outside section ratio of sheet metal 40 is much larger, so this structure can improve internal coil 30 and the connection reliability of electrode 10 greatly, ensure the quality of product, improve the stability of work.
In the present embodiment, electrode 10 is covered on the first side 223 by the mode of plating, and sheet metal 40 side concordant with the first side 223 is all coated with electrode 10.Sheet metal 40 side concordant with the first side 223 only need can also partly be coated with electrode 10 according to actual needs.
As shown in Figure 2 and Figure 4, core assembly 20 comprises magnetic sheet 210, magnet ring 220, magnetic post 230 and lower magnetic sheet 240, magnetic post 230 is arranged with internal coil 30, internal coil 30 is sheathed in magnet ring 220, upper magnetic sheet 210 is located at the upper surface 221 of magnet ring 220, lower magnetic sheet 240 is located at the lower surface 222 of magnet ring 220, and magnet ring 220 is provided with the first side 223, and upper magnetic sheet 210 and lower magnetic sheet 240 are covered in two end faces up and down of magnet ring 220 respectively to form closed-flux structure.
In the present embodiment, as shown in Figures 2 to 5, sheet metal 40 comprises the first sheet metal 410 and the second sheet metal 420, electrode 10 comprises first electrode 110 corresponding with the first sheet metal 410 and second electrode 120 corresponding with the second sheet metal 420, first side 223 comprises concordant with the first sheet metal 410 1 side first and electroplates side 2231 and concordant with the second sheet metal 420 second and electroplate side 2232, first sheet metal 410 and the second sheet metal 420 to be all held between magnetic sheet 210 and upper surface 221 first and to electroplate side 2231 and second and electroplate side 2232 and be oppositely arranged.And upper magnetic sheet 210 is provided with the second side 211, second side 211 comprise to electroplate with first side 2231 concordant the 3rd electroplate side 2111 and with second electroplate side 2232 concordant the 4th electroplate side 2112, lower magnetic sheet 240 is provided with the 3rd side 241, 3rd side 241 comprise to electroplate with first side 2231 concordant the 5th electroplate side 2411 and with second electroplate side 2231 concordant the 6th electroplate side 2412, the end face 212 of upper magnetic sheet 210 is provided with the first regional area, described first regional area comprises to be electroplated the first end face regional area 2121 that side 2111 is connected and electroplates with the 4th the second end face regional area 2122 that side 2112 is connected with the 3rd, the bottom surface 242 of lower magnetic sheet 240 is provided with the second regional area, second regional area comprises to be electroplated the first bottom surface regional area 2421 that side 2411 is connected and electroplates with the 6th the second bottom surface regional area 2422 that side 2412 is connected with the 5th.
First electrode 110 is formed at the first plating side 2231 by the mode of plating simultaneously, first sheet metal 410 and first electroplates concordant side, side 2231, 3rd plating side 2111, first end face regional area 2121, 5th plating side 2411 and the first bottom surface regional area 2421, second electrode 120 is formed at the second plating side 2232 by the mode of plating equally simultaneously, second sheet metal 420 and second electroplates concordant side, side 2232, 4th plating side 2112, second end face regional area 2122, 6th plating side 2412 and the second bottom surface regional area 2422, be completely fixed on core assembly 20 after electrode 10 is electroplated, make the more compact structure of inductor.
In the present embodiment, two coil exits 310 are all on upper surface 221, and two sheet metals 40 are symmetricly set in the upper surface 221 of magnet ring 220, and each coil exit 310 is connected to the upper surface of corresponding sheet metal 40 by techniques such as welding.Sheet metal 40 can also be held on or/and between lower magnetic sheet 240 and lower surface 222 between upper magnetic sheet 210 and upper surface 221 according to the position of the coil exit 310 of different internal coil 30, and sheet metal 40 can also arrange more than one according to actual needs.
As depicted in figs. 1 and 2, electrode 10 comprises interior electrode 101 and external electrode 102, and interior electrode 101 is electrically connected with sheet metal 40, and external electrode 102 is close to interior electrode 101 periphery, can prevent interior electrode 101 periphery from corrosion occurring, make the longer service life of electrode 10.And electrode 10 comprises inside and outside two-layer electrode, make the thickness of electrode thicker, structure is more firm.
In the present embodiment, as shown in Figure 2, the U-shaped profile of interior electrode 101, the cross section of external electrode 102 is L-shaped.Interior electrode 101 and external electrode 102 can also be arranged to other shapes according to actual.
As shown in Figure 2 and Figure 6, the periphery of sheet metal 40 is arranged with several connectivity slots 401 and through hole 402, bonding when pressing of upper magnetic sheet 210 and magnet ring 220, lower magnetic sheet 240 and magnet ring 220 is conducive to by connectivity slot 401 and through hole 402, in enhancing, magnetic sheet 210 and magnet ring 220, lower magnetic sheet 240 and the adhesion of magnet ring 220, make overall structure more firm.
As shown in Figure 7, sheet metal 40 can also arrange connectivity slot 401 in other sides according to actual needs, and connectivity slot 401 and through hole 402 both can be circular, also can be other shapes such as rectangle.
As shown in Figures 1 to 5, the Making programme of the utility model embodiment is:
Magnet ring 220 is positioned on lower magnetic sheet 240;
Pre-processed two sheet metals 40 are positioned on the upper surface 221 of magnet ring 220, and notice that the outer lateral section of maintenance two sheet metals 40 is all concordant with the side of magnet ring 220;
Internal coil 30 is surrounded on magnetic post 230, and puts into the hollow bulb of magnet ring 220 together;
Two of internal coil 30 coil exits 310 are connected on two sheet metals 40 respectively by welding or other modes, ensure to electrically conduct;
Upper magnetic sheet 210 is covered on magnet ring 220, covers the upper surface of internal coil 30 and sheet metal 40;
By upper magnetic sheet 210, magnet ring 220, magnetic post 230 and lower magnetic sheet 240, built-in metal sheet 40, internal coil 30 is pressed into by temperature-pressure and is integrated;
Soak and form epoxy protection film 50, all non-interior electrode 101 electroplating site of inductor is all protected, facilitate follow-up plating to form interior electrode 101;
Form electrode 101 in two ends by electroplating technology, interior electrode 101 takes the shape of the letter U, and interior electrode 101 is directly contacted with the lateral section of sheet metal 40;
Soaked by the end face of core assembly 20 again and form epoxy protection film 50, when adding plating external electrode 102 after guaranteeing, the end face of interior electrode 101 is not plated;
By electroplating technology, be close to interior electrode 101, form external electrode 102.External electrode 102 is L-shaped, mainly for the protection of interior electrode 101.
Process assembling for convenience, core assembly 20 also can be designed to the textural association different from the present embodiment, as: other structures such as E+I structure, E+E structure.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (8)
1. an inductor, it is characterized in that, comprise electrode, core assembly, the internal coil being positioned at described core assembly and sheet metal, at least one side of described sheet metal is concordant with the first side of described core assembly, described internal coil is provided with at least two coil exits, described coil exit and described sheet metal are electrically connected, and described electrode is arranged on described first side, the described lateral parts that described sheet metal is concordant with described first side or be all coated with described electrode.
2. inductor according to claim 1, it is characterized in that, described core assembly comprises magnetic sheet, magnet ring, magnetic post and lower magnetic sheet, described magnetic post is arranged with described internal coil, described internal coil is sheathed in described magnet ring, described upper magnetic sheet is located at the upper surface of described magnet ring, described lower magnetic sheet is located at the lower surface of described magnet ring, described sheet metal is held between described upper magnetic sheet and described upper surface or/and between described lower magnetic sheet and described lower surface, described magnet ring is provided with described first side, described electrode is covered on described first side by the mode of plating.
3. inductor according to claim 2, it is characterized in that, described upper magnetic sheet is provided with second side concordant with described first side, described lower magnetic sheet is provided with three side concordant with described second side, and described electrode is covered on described second side and described 3rd side by the mode of plating.
4. inductor according to claim 3, it is characterized in that, the end face of described upper magnetic sheet is provided with the first regional area be connected with described first side, the bottom surface of described lower magnetic sheet is provided with the second regional area be connected with described second side, and described electrode is covered on described first regional area and described second regional area by the mode of plating.
5. the inductor according to any one of Claims 1-4, is characterized in that, described electrode comprises interior electrode and external electrode, and described interior electrode and described sheet metal are electrically connected, and described external electrode is close to described interior electrode periphery.
6. inductor according to claim 5, is characterized in that, the U-shaped profile of described interior electrode, the cross section of described external electrode is L-shaped.
7. the inductor according to any one of Claims 1-4, is characterized in that, the periphery of described sheet metal is arranged with several connectivity slots.
8. the inductor according to any one of Claims 1-4, is characterized in that, described sheet metal is provided with several through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350699.4U CN204668104U (en) | 2015-05-27 | 2015-05-27 | Inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350699.4U CN204668104U (en) | 2015-05-27 | 2015-05-27 | Inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204668104U true CN204668104U (en) | 2015-09-23 |
Family
ID=54138463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520350699.4U Expired - Fee Related CN204668104U (en) | 2015-05-27 | 2015-05-27 | Inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204668104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903962A (en) * | 2017-12-07 | 2019-06-18 | 三星电机株式会社 | Winding inductor |
-
2015
- 2015-05-27 CN CN201520350699.4U patent/CN204668104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903962A (en) * | 2017-12-07 | 2019-06-18 | 三星电机株式会社 | Winding inductor |
| CN109903962B (en) * | 2017-12-07 | 2021-07-20 | 三星电机株式会社 | Wound-rotor inductor |
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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: 20150923 Termination date: 20160527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |