CN104347240A - Thin inductance coil - Google Patents
Thin inductance coil Download PDFInfo
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- CN104347240A CN104347240A CN201410525884.2A CN201410525884A CN104347240A CN 104347240 A CN104347240 A CN 104347240A CN 201410525884 A CN201410525884 A CN 201410525884A CN 104347240 A CN104347240 A CN 104347240A
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- induction coil
- coil
- iron core
- thin induction
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Abstract
The invention discloses a thin inductance coil. The inductance coil comprises a metal coil which is provided with two electrical terminals, two electrode regions which are respectively and electrically connected to the two electrical terminals, and a coating body which covers the metal coil and the two electrode regions, wherein the two electrode regions are partly exposed outside the coating body, and an iron core accommodating hole, through which the metal coil penetrates, is formed in the coating body. According to the invention, a return welding furnace is used for electrically welding the metal coil to a metal charge belt, and forming the coating body outside the metal coil through a compression molding step. Part of the metal charge belt is exposed to directly form two electrodes of the thin inductance coil, and for the thin inductance coil disclosed by the invention, the iron core accommodating hole, through which the metal coil penetrates, is formed in the coating body, so that an iron core can be accommodated, and the thin inductance coil can effectively increase an inductance value through the iron core.
Description
Technical field
The present invention relates to inductance coil art, refer in particular to a kind of thin induction coil.
Background technology
Along with industry and the development of science and technology, electronic product is used in the life of modern widely; Wherein, inductance coil more plays indispensable part in electronic product.Technology as disclosed in the TaiWan, China patent No.: I256063 is namely in a kind of choking winding of explanation and manufacture method thereof, and its main technical content is as follows:
Refer to the processing procedure schematic diagram that Fig. 1 to Fig. 3 is a kind of thin induction coil commonly used; As shown in the figure, the manufacture method of the thin induction coil 1 ' commonly used comprises the steps:
First, perform step (S01 '), be fixedly installed on a material strip 2 ' through a laser welding processing procedure by a coil 11 ', wherein, this coil 11 ' includes two electric terminals 111 ' and is fixedly welded on two electrical weld parts 21 ' of this material strip 2 ' respectively; Then, perform step (S02 '), a cladding 12 ' is formed outward with this coil 11 ' coated in this coil 11 ' through a mold molding manufacture procedure, wherein, these two electrical weld parts 21 ' protrude from outside this cladding 12 ', further, this cladding 12 ' is formed with two electrode storage tanks 121 '; After completing abovementioned steps, the method then performs step (S03 '), forms two electrodes 22 ' respectively by these two electrical weld parts 21 ' of bending, and these two electrodes 22 ' are partly fixedly arranged in these two electrode storage tanks 121 '.
In the manufacture method of the above-mentioned thin induction coil commonly used, because laser welding processing procedure to make the surface conductivity of electrical weld part 21 ' change, therefore, in step (S03 '), be to need in electrical weld part 21 ' by the mode of bending, be not subject to the part that laser welding irradiates and expose to outside this cladding 12 and to complete the processing procedure of electrode 22 '.But significantly, the setting of step (S03 ') not only increases the Making programme of overall inductance coil, more cause manufacture difficulty to increase and control the shortcoming such as not easily with product yield.
Via above-mentioned, can learn that the manufacture method of the thin induction coil commonly used has shortcoming with not enough; In view of this, the inventor of the present invention does one's utmost to be studied invention, has has finally researched and developed a kind of thin induction coil of the present invention.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its main purpose is to provide a kind of thin induction coil, and it can significantly simplify the Making programme of the thin induction coil of tradition.
For achieving the above object, the present invention adopts following technical scheme:
A kind of thin induction coil, includes
One wire coil, it has two electric terminals;
Two electrode districts, it is electrically connected at this two electric terminals respectively; And
One cladding, it is coated on outside this wire coil and this two electrode district, and wherein, this two electrode district is that part is exposed to outside this cladding, and this cladding is formed to be arranged in one of this wire coil iron core containing hole.
As a kind of preferred version, include an iron core further, and this iron core is arranged within this iron core containing hole.
As a kind of preferred version, described cladding formed by the plastics doped with iron powder.
As a kind of preferred version, described wire coil be by a copper cash be coated on one of the outer insulating barrier of this copper cash and form.
A kind of thin induction coil, includes
One wire coil, it has two electric terminals, and this wire coil is set around around an iron core;
Two electrode districts, it is electrically connected at this two electric terminals respectively; And
One cladding, it is coated on outside wire coil, iron core and this two electrode district, and wherein, this iron core and two electrode districts are that part is exposed to outside cladding.
As a kind of preferred version, described cladding formed by the plastics doped with iron powder.
As a kind of preferred version, described wire coil be by a copper cash be coated on one of the outer insulating barrier of this copper cash and form.
A kind of thin induction coil, includes
One wire coil, it has two electric terminals;
Two electrode districts, it is electrically connected at this two electric terminals respectively; And
One cladding, it is coated on outside this wire coil and this two electrode district, and wherein, this two electrode district is that part is exposed to outside this cladding.
As a kind of preferred version, described cladding formed by the plastics doped with iron powder.
As a kind of preferred version, described wire coil be by a copper cash be coated on one of the outer insulating barrier of this copper cash and form.
The present invention compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution:
1. through reflow oven solder technology, it is the laser welding that can replace tradition, and avoid metal material belt to produce surperficial qualitative change and affect its surface characteristic, make the electrode district on metal material belt need not directly can become the electrode of thin induction coil by bending, and then significantly simplify the Making programme of thin induction coil of tradition.
2. through the core design of the present invention, be the inductance characteristic that can increase thin induction coil significantly, also make the wire coil number of turns of the present invention relatively low simultaneously.
3. in the 2nd describe, by two kinds of iron core set-up modes proposing, make thin induction coil be can use different manufactures according to product performance and the market demand, and then reach the raising inductance characteristic of thin inductance or simplify the advantages such as manufacturing process.
For more clearly setting forth architectural feature of the present invention and effect, below in conjunction with accompanying drawing and specific embodiment, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the first processing procedure schematic diagram of a kind of thin induction coil commonly used;
Fig. 2 is the second processing procedure schematic diagram of a kind of thin induction coil commonly used;
Fig. 3 is the 3rd processing procedure schematic diagram of a kind of thin induction coil commonly used;
Fig. 4 is the manufacture method first pass schematic diagram of the thin induction coil of the present invention;
Fig. 5 is manufacture method second schematic flow sheet of the thin induction coil of the present invention;
Fig. 6 is manufacture method the 3rd schematic flow sheet of the thin induction coil of the present invention;
Fig. 7 is the thin induction coil stereogram of the present invention;
Fig. 8 is the manufacture method second embodiment schematic diagram of the thin induction coil of the present invention;
Fig. 9 is the schematic diagram that the wire coil of the present invention is fixed on metal material belt;
Figure 10 is the first pass schematic diagram of manufacture method second embodiment of the thin induction coil of the present invention;
Figure 11 is the second schematic flow sheet of manufacture method second embodiment of the thin induction coil of the present invention;
Figure 12 is the first pass schematic diagram of manufacture method the 3rd embodiment of the thin induction coil of the present invention;
Figure 13 is the second schematic flow sheet of manufacture method the 3rd embodiment of the thin induction coil of the present invention;
Figure 14 is the manufacture method schematic diagram of the another kind of thin induction coil of the present invention;
Figure 15 is the another kind of thin induction coil stereogram of the present invention;
Figure 16 is the second embodiment stereogram of the another kind of thin induction coil of the present invention.
Accompanying drawing identifier declaration:
1 ', the thin induction coil 2 ' commonly used, material strip
11 ', coil 12 ', cladding
21 ', electrical weld part 22 ', electrode
111 ', electric terminal 121 ', electrode storage tank
1, thin induction coil 2, metal material belt
3, conducting medium 11, wire coil
12, cladding 13, iron core
21, electrode district 111, electric terminal
121, electrode storage tank 122, iron core containing hole.
Embodiment
In order to a kind of thin induction coil proposed by the invention and manufacture method thereof more clearly can be described, below will coordinate diagram, elaborate the preferred embodiment of the present invention.
Referring to shown in Fig. 3 to Fig. 5 and Fig. 6, is the manufacture method schematic flow sheet of the thin induction coil of the present invention and the thin induction coil stereogram of the present invention; A kind of thin induction coil 1 of the present invention be mainly by: wire coil is fixed on material strip step, molded step and iron core and is fixedly arranged on iron core containing hole step and manufactures formation.
First, carry out wire coil to be fixed on material strip step, one wire coil 11 is electrically connected on a metal material belt 2, then, carry out molded step, this wire coil 11 and metal material belt 2 to be inserted in mould and part metal material belt 2 is exposed to outside mould, and giving molded to form thin induction coil 1; Wherein, being worth special instruction, in the molded step of the present embodiment, is be formed to be arranged in one of this wire coil 11 iron core containing hole 122 on molded cladding 12; Further, after completing molded step, be perform iron core to be fixedly arranged on iron core containing hole step, an iron core 13 plugged and is fixed among this iron core containing hole 122, and then completing the Making programme of thin induction coil 1.
Design like this, the thin induction coil 1 of the present invention will be made according to product demand can to select the material of iron core, and, it is the inductance value that effectively can change thin induction coil 1 by different iron core materials, make production line need not can produce the thin induction coil of multiple different induction amount by repeatedly die sinking, and then reduce the manufacturing cost of thin induction coil.
Further, among thin induction coil 1 structure of said method step and the present invention, this wire coil 11 to be set around around this iron core 13 and to include two electric terminals 111, and these two electric terminals 111 are electrically connected on two electrode districts 21 of this metal material belt 2 respectively, and, this wire coil 11, iron core 13 and two electrode districts 21 are coated in a cladding 12, in addition, this iron core 13 and these two electrode districts 21 are that part is exposed to outside this cladding 12, and two electrode districts 21 being exposed to this cladding 12 outer are two electrodes becoming this thin induction coil 1.
In addition, wire coil in the present invention is fixed in material strip step, this wire coil 11 is through conducting medium 3 and is arranged on these two electrode districts 21 respectively by these two electric terminals 111, and make these two electric terminals 111 be electrically connected on these two electrode districts 21 respectively through this conducting medium 3 (as technology such as reflow oven) of heating, wherein, this conducting medium 3 can be selected from any one of following group: tin cream, soldering paste, lead and silver-colored.In addition, among thin induction coil 1 structure of the present invention, this cladding 12 formed by the plastics doped with iron powder, and this wire coil 11 be by a copper cash be coated on one of the outer insulating barrier of this copper cash and form.
Please continue to refer to Fig. 7, and please refer to Fig. 8, Fig. 9 and Figure 10 to Figure 11, be the manufacture method second embodiment schematic diagram of the thin induction coil of the present invention, the wire coil of the present invention is fixed on the schematic flow sheet of schematic diagram on metal material belt and the second embodiment; Compared to the embodiment of script, among second embodiment of the present invention, be before execution wire coil is fixed on material strip step, first perform wire coil and be wound in iron core step.
First, be carry out wire coil to be wound in iron core step, this wire coil 11 be wound around and be located in around this iron core 13; Then, be carry out wire coil to be fixed on material strip step, wire coil 11 be electrically connected on this metal material belt 2.After completing abovementioned steps, the present invention then carries out molded step, this wire coil 11 and metal material belt 2 to be inserted in mould and part metal material belt 2 is exposed to outside mould, and giving molded to form thin induction coil 1; Further, after completing this molded step, more thin induction coil 1 can be taken off on electric pole, and carry out cutting to make this iron core 13 cut the outside of putting down in this thin induction coil 1.
Among above-mentioned manufacture method, wire coil can be made more closely to be wound on iron core, and iron core need not be performed further to be fixedly arranged on iron core containing hole step, this thin induction coil 1 can be produced, mode like this, can simplify the Making programme of thin induction coil widely.
Be to find after more above-mentioned two embodiments, in script embodiment, be through due to iron core the mode that plugs and be arranged in its corresponding iron core containing hole, therefore, this iron core can need not trim with the outside of thin induction coil by secondary operations; On the other hand, among the second embodiment, because wire coil is directly wound on iron core and gives molded, therefore, iron core can need not be fixedly arranged among thin induction coil structure by secondary is fixing.
Refer to Figure 12 and Figure 13, it is manufacture method the 3rd embodiment schematic flow sheet of the thin induction coil of the present invention, as shown in the figure, the present inventor more proposes the 3rd embodiment of thin induction coil, what be different from above-mentioned two embodiments is, among the 3rd embodiment, be in molded step, on cladding 12, be formed with two electrode storage tanks 121; Further, after completing molded step, be made these two electrode districts 21 its part be fixedly arranged in these two electrode storage tanks 121 by the mode of bending.Design like this, is the electrode area that can increase thin induction coil 1 significantly, and then meets different product demands.
So, above-mentioned is complete and the thin induction coil of clearly explanation the present invention and manufacture method thereof; Further, inventor more proposes another kind of thin induction coil and manufacture method thereof; Then continuation is coordinated diagram, elaborate the preferred embodiment of the another kind of manufacture method of the present invention.
Referring to Figure 14 and Figure 15, is the manufacture method schematic diagram of the another kind of thin induction coil of the present invention and the another kind of thin induction coil stereogram of the present invention; As shown in Figure 14 and Figure 15, in the manufacture method and structure thereof of the another kind of thin induction coil of the present invention, be include: wire coil is fixed on material strip step, molded step and thin induction coil from material strip separating step.
Wherein, this wire coil is fixed on material strip step and is through reflow oven and is electrically welded on metal material belt 2 by wire coil 11, and this molded step wire coil 11 and metal material belt 2 is inserted in mould and makes part metal material belt 2 be exposed to outside mould, and give molded to form thin induction coil 1, further, this thin induction coil from material strip separating step be by the thin induction coil 1 that formed be separated on this metal material belt 2.
Further, this wire coil 11 includes two electric terminals 111, and these two electric terminals 111 are electrically connected on two electrode districts 21 of this metal material belt 2 respectively, and, this wire coil 11 is be coated in cladding 12 with these two electrode districts 21, in addition, to be that part is exposed to this cladding 12 outer and become two electrodes of this thin induction coil 1 in these two electrode districts 21.
Wherein, be fixed in material strip step in wire coil, this wire coil 11 is through conducting medium 3 and is arranged on these two electrode districts 21 respectively by these two electric terminals 111, and makes these two electric terminals 111 be electrically connected on these two electrode districts 21 respectively through this conducting medium 3 of heating; And this conducting medium 3 be selected from following group any one: tin cream, soldering paste, lead and silver-colored.In addition, this cladding 12 formed by the plastics doped with iron powder, and this wire coil 11 be by a copper cash be coated on one of the outer insulating barrier of this copper cash and form.So, the mode being welded and fixed wire coil and material strip through laser welding of tradition can be replaced, so avoid it to use the surface characteristic variation phenomenon of metal material belt that produces.
Referring to Figure 16, is the second embodiment stereogram of the another kind of thin induction coil of the present invention, as shown in the figure, compared to above-mentioned embodiment, among the second embodiment, is in molded step, is formed with two electrode storage tanks 121 on cladding 12; Further, after completing molded step, be made by the mode of bending these two electrode districts 21 its part be fixedly arranged in these two electrode storage tanks 121, and then increase the electrode area of thin induction coil 1 significantly.
So, above-mentioned is complete and the thin induction coil of clearly explanation the present invention and manufacture method thereof; Further, can learn that the present invention has following advantage:
1. through reflow oven solder technology, it is the laser welding that can replace tradition, and avoid metal material belt to produce surperficial qualitative change and affect its surface characteristic, make the electrode district on metal material belt need not directly can become the electrode of thin induction coil by bending, and then significantly simplify the Making programme of thin induction coil of tradition.
2. through the core design of the present invention, be the inductance characteristic that can increase thin induction coil significantly, also make the wire coil number of turns of the present invention relatively low simultaneously.
3. in the 2nd describe, by two kinds of iron core set-up modes proposing, make thin induction coil be can use different manufactures according to product performance and the market demand, and then reach the raising inductance characteristic of thin inductance or simplify the advantages such as manufacturing process.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, thus every above embodiment is done according to technical spirit of the present invention any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a thin induction coil, is characterized in that: include
One wire coil, it has two electric terminals;
Two electrode districts, it is electrically connected at this two electric terminals respectively; And
One cladding, it is coated on outside this wire coil and this two electrode district, and wherein, this two electrode district is that part is exposed to outside this cladding, and this cladding is formed to be arranged in one of this wire coil iron core containing hole.
2. thin induction coil according to claim 1, is characterized in that: include an iron core further, and this iron core is arranged within this iron core containing hole.
3. thin induction coil according to claim 1, is characterized in that: described cladding formed by the plastics doped with iron powder.
4. thin induction coil according to claim 1, is characterized in that: described wire coil be by a copper cash be coated on one of the outer insulating barrier of this copper cash and form.
5. a thin induction coil, is characterized in that: include
One wire coil, it has two electric terminals, and this wire coil is set around around an iron core;
Two electrode districts, it is electrically connected at this two electric terminals respectively; And
One cladding, it is coated on outside wire coil, iron core and this two electrode district, and wherein, this iron core and two electrode districts are that part is exposed to outside cladding.
6. thin induction coil according to claim 5, is characterized in that: described cladding formed by the plastics doped with iron powder.
7. thin induction coil according to claim 5, is characterized in that: described wire coil be by a copper cash be coated on one of the outer insulating barrier of this copper cash and form.
8. a thin induction coil, is characterized in that: include
One wire coil, it has two electric terminals;
Two electrode districts, it is electrically connected at this two electric terminals respectively; And
One cladding, it is coated on outside this wire coil and this two electrode district, and wherein, this two electrode district is that part is exposed to outside this cladding.
9. thin induction coil according to claim 8, is characterized in that: described cladding formed by the plastics doped with iron powder.
10. thin induction coil according to claim 8, is characterized in that: described wire coil be by a copper cash be coated on one of the outer insulating barrier of this copper cash and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410525884.2A CN104347240B (en) | 2014-10-09 | 2014-10-09 | Thin induction coil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410525884.2A CN104347240B (en) | 2014-10-09 | 2014-10-09 | Thin induction coil |
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| CN104347240A true CN104347240A (en) | 2015-02-11 |
| CN104347240B CN104347240B (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410525884.2A Expired - Fee Related CN104347240B (en) | 2014-10-09 | 2014-10-09 | Thin induction coil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448468A (en) * | 2015-12-11 | 2016-03-30 | 东莞建冠塑胶电子有限公司 | Thin inductor structure and manufacturing method thereof |
| TWI614777B (en) * | 2015-12-18 | 2018-02-11 | Thin inductor structure and manufacturing method | |
| CN109754986A (en) * | 2019-01-28 | 2019-05-14 | 深圳顺络电子股份有限公司 | A kind of ejection formation inductance and its manufacturing method |
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| JPH06120039A (en) * | 1992-10-02 | 1994-04-28 | Tokin Corp | Inductor and its manufacturing method |
| CN201063289Y (en) * | 2007-07-11 | 2008-05-21 | 千如电机工业股份有限公司 | Enclosed inductor structure |
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| CN102760551A (en) * | 2011-04-29 | 2012-10-31 | 三星电机株式会社 | Chip-type coil component |
| JP2013062353A (en) * | 2011-09-13 | 2013-04-04 | Taiyo Yuden Co Ltd | Chip bead and manufacturing method thereof |
| CN103038839A (en) * | 2010-08-05 | 2013-04-10 | 株式会社藤仓 | Electronic circuit chip and method of manufacturing electronic circuit chip |
| CN203013486U (en) * | 2012-11-20 | 2013-06-19 | 绵阳普思电子有限公司 | Micro flyback transformer |
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2014
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Patent Citations (7)
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| JPH06120039A (en) * | 1992-10-02 | 1994-04-28 | Tokin Corp | Inductor and its manufacturing method |
| CN201063289Y (en) * | 2007-07-11 | 2008-05-21 | 千如电机工业股份有限公司 | Enclosed inductor structure |
| CN101615480A (en) * | 2009-05-12 | 2009-12-30 | 奋发电子(东莞)有限公司 | Integrally-formed inductor and manufacture craft thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448468A (en) * | 2015-12-11 | 2016-03-30 | 东莞建冠塑胶电子有限公司 | Thin inductor structure and manufacturing method thereof |
| TWI614777B (en) * | 2015-12-18 | 2018-02-11 | Thin inductor structure and manufacturing method | |
| CN109754986A (en) * | 2019-01-28 | 2019-05-14 | 深圳顺络电子股份有限公司 | A kind of ejection formation inductance and its manufacturing method |
| CN109754986B (en) * | 2019-01-28 | 2024-01-05 | 东莞顺络电子有限公司 | Injection molding inductor and manufacturing method thereof |
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| CN104347240B (en) | 2016-12-07 |
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