CN1391241A - Process for preparing thin inductor - Google Patents
Process for preparing thin inductor Download PDFInfo
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- CN1391241A CN1391241A CN 01115962 CN01115962A CN1391241A CN 1391241 A CN1391241 A CN 1391241A CN 01115962 CN01115962 CN 01115962 CN 01115962 A CN01115962 A CN 01115962A CN 1391241 A CN1391241 A CN 1391241A
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Abstract
A method for making thin inductor includes such steps as forming ferrite core, winding coil, soldering output terminals, packaging with resin and grinding.
Description
The present invention is a kind of manufacture method of thin inductor, is to utilize magnetic ferrites to have preferable mechanical strength, can carry out the characteristic of attrition process, make inductor in processing procedure, molding thickness unshakable in one's determination can be thicker, and to the encapsulating encapsulation, the beginning is given the grinding skiving again; Use, make iron core when the coil winding, be easy to clamping, and after inductor is finished the encapsulating encapsulation, unnecessary thickness unshakable in one's determination can be given suitable attrition process,, make that making extra-thin inductor becomes feasible to reach less integral thickness.
According to the present invention, when making the open-flux path inductor, this method comprises following step at least: moulding unshakable in one's determination, winding coil, welding exert oneself terminal, encapsulating encapsulation, and attrition process etc.; Wherein:
The step of moulding unshakable in one's determination is be that the moulding material is made a drum-shaped core with magnetic ferrites (Ferrite), and the barrier thickness of drum-shaped core can be thicker, to be easy to production and clamping;
The step of winding coil is that drum-shaped core is given clamping, and with the coil winding on drum-shaped core;
Weld the step of the terminal of exerting oneself, the coil terminals and the terminal of exerting oneself are welded;
The step of encapsulating encapsulation is that drum-shaped core, coil and the terminal of exerting oneself etc. inserted in the mould, and encapsulating encapsulates and is coated and fixed, and only that drum-shaped core is unnecessary barrier thickness is exposed;
The step of attrition process is to finish the inductor of encapsulating encapsulation, give suitable attrition process, and the barrier thickness that drum-shaped core is unnecessary to be removed, to reach less integral thickness.
According to the present invention, when making the closed magnetic circuit inductor, this method comprises following step at least: moulding unshakable in one's determination, winding coil, insert sleeve, welding the exert oneself encapsulation of terminal, encapsulating, and attrition process etc.; Wherein:
Inserting the step of sleeve, be that drum-shaped core and coil are inserted a sleeve iron core, and the sleeve iron core also is the moulding of magnetic ferrites, sleeve iron core upper end also has the rim of the mouth, two ends, can pass through for coil terminals, and then form the magnetic field of a closed magnetic circuit, to constitute a closed magnetic circuit inductor.
The manufacture method of relevant inductor commonly used, formation, and technological means, enumerate in after, sincerely please refer to:
(1) Chang Yong inductor, the last lower baffle of its drum-shaped core has certain condition of molding, that is certain restriction is arranged on molding thickness, for example: the molding thickness of plate washer can not be 0.3mm, and need more than 0.6mm can moulding, and therefore, the gross thickness of last lower baffle must be more than 1.2mm; In addition, but add the required winding coil space that possesses of drum-shaped core, then the integral thickness of drum-shaped core is thicker; Be with, the inductor that this type of is commonly used, very difficultly on integral thickness give reduction, unlikely make extra-thin inductor.
(2), and produce the thin drum-shaped core of paper plate up and down even the following forming technique of 0.6mm becomes possibility; Only, on actual effect, but have practical shortcomings such as being difficult for clamping and easy fragmentation; Generally because of, drum-shaped core can produce a coiling active force when the winding coil, therefore, drum-shaped core need be subjected to good gripping; When the clamping power was light, drum-shaped core can get loose and can't grip really; And when the clamping power was heavier, though drum-shaped core can grip really, because the thinner thickness of last lower baffle, therefore, last lower baffle was very easily broken, and drum-shaped core has the anxiety of damage; Be with, on reality is made, truly have to be unfavorable for the production part, so it is desirable not to the utmost to plant the mode of making.
(3) moreover, closed magnetic circuit inductor commonly used need be provided with a sleeve iron core in the periphery of centering coil, therefore, has the slit between centering coil and sleeve iron core; In technology commonly used, be on the slit, to inject, and make centering coil and sleeve iron core then fix with adhesive agent; Only, if the adhesive agent quantity not sufficient of injecting or when then effect is firm inadequately has loosening situation and takes place; In addition the operation that adhesive agent injects the slit also is not easy, and adhesive agent regular meeting residues on the breach in slit, at this moment, and can only be by manually with in addition wiping of sponge; So it is unsatisfactory that kind is made mode, have much room for improvement in fact.
(4) in addition, SMD formula inductor commonly used, often with the lower surface of drum-shaped core directly as the terminal of exerting oneself of inductor, therefore, lower baffle is vulnerable to the influence of thermal shock when plating the scolding tin operation, and causes drum-shaped core to produce slight crack; More advance, lower baffle need be bestowed silver-plated and silver-plated back sintering in advance before plating the scolding tin operation, and not only engineering is loaded down with trivial details and cost is higher; Especially, in plating the scolding tin operation, if silver-plated too thin, silver has the anxiety of dissolving in solder bath earlier, and quality control is difficult for; Be with, before carrying out scolding tin, need sometimes silver-plated two to three times, and increase man-hour, and expend cost.
(5) again, the inductor commonly used that some connects with a base substrate is to hold the mode that gives cramp to be buckled in the both sides of substrate with exerting oneself, and the upper end of cramp and coil terminals engage with weldering WU, again with adhesive agent gluing weldering WU tie point; Only, the consumption of adhesive agent is also wayward, and crossing needs wiping to remove at most, follows undercapacity at least and cross, and quality control is difficult for; And add base substrate, also will increase the integral thickness of inductor, so not most desirable part is also arranged.
Relevant inductor commonly used because of of a great variety, repeats no more, and only enumerates several product pictures for reference, and is detailed in annex one.
Because above-mentioned is commonly used, very difficultly on integral thickness give reduction, unlikely make extra-thin inductor, and have some practical shortcomings really, not only engineering is loaded down with trivial details, cost is higher, and quality control is difficult for, therefore,, have in fact and needs alternative necessity badly day by day for the demand of exquisiteness and miniaturization for inductor, with in response to the epoch demand.
Main purpose of the present invention, be the manufacture method that a kind of thin inductor is provided, make inductor in processing procedure, molding thickness unshakable in one's determination can be thicker, and to the encapsulating encapsulation, the beginning is given the grinding skiving again, to reach less integral thickness, and make extra-thin inductor, and this method obviously possesses following advantage, feature and purpose, replaces with advantage:
The first, drum-shaped core of the present invention is body formed with magnetic ferrite, and the thickness of going up lower baffle can be thicklyer, not only be easy to produce, and can bear bigger chucking power, so when the winding coil, the anxiety that drum-shaped core does not have fragmentation and gets loose.
The second, the present invention is the mode with encapsulating encapsulation, and drum-shaped core, coil and the terminal of exerting oneself etc. encapsulate coating, and the fixed effect excellence does not have the adhesive agent quantity not sufficient or follows shortcomings such as effect is firm inadequately, and the also anxiety of noresidue adhesive agent.
Three, the terminal of exerting oneself of the present invention is to weld mutually with coil terminals, and is positioned at the dual-side of inductor; And the terminal of exerting oneself of the present invention only need plate the scolding tin operation, handling ease, and quality is even; When plating the scolding tin operation, thermal shock is to be born by the colloid that encapsulates, and the unlikely drum-shaped core that involves can prevent the generation of slight crack; Use, promote the quality of product, and improve the lower surface with drum-shaped core commonly used directly as the terminal of exerting oneself of inductor, the practical shortcoming that is caused.
Four, the present invention be that drum-shaped core and coil are inserted a sleeve iron core, and the sleeve iron core also is the moulding of magnetic ferrites when making the closed magnetic circuit inductor, sleeve iron core upper end also has the rim of the mouth, two ends, can pass through for coil terminals,, can reach excellent fixed effect by the encapsulating encapsulation; Shortcoming such as do not have the adhesive agent quantity not sufficient or then effect is firm inadequately, and the also anxiety of noresidue adhesive agent.
Five, the present invention is after the encapsulating encapsulation, and only that drum-shaped core is unnecessary barrier thickness is exposed, and the structure of inductor is very firm, can be by suitable attrition process, and the barrier thickness that drum-shaped core is unnecessary is removed, and can reach less integral thickness; By this, make the integral thickness of inductor can further give reduction again, and make extra-thin inductor.
The present invention is in order to reach above-mentioned purpose and effect, and the technological means that this method adopted comprises:
(a) step of moulding unshakable in one's determination is to make a drum-shaped core with magnetic ferrites, and the last lower baffle of drum-shaped core can have thicker thickness;
(b) step of winding coil is that drum-shaped core is given clamping, and with the coil winding on winding axle center;
(c) the exert oneself step of terminal of welding is welded two coil terminals and two terminal of exerting oneself;
(d) step of encapsulating encapsulation, be with drum-shaped core, coil, and two exert oneself terminals etc. insert in the mould, and pour into the insulation colloid and be coated and fixed, and will go up lower baffle unnecessary thickness to be ground and be exposed;
(e) step of attrition process is that last lower baffle is bestowed suitable attrition process, and unnecessary barrier thickness is removed;
By this, make the integral thickness of inductor can further give reduction again, and reach less integral thickness, to make an extra-thin inductor.
Feature of the present invention, technological means and the concrete function of being reached, purpose enumerate one now than specific embodiment, continue describe in detail with graphic, figure number as after:
Graphic being described as follows:
Fig. 1 is a steps flow chart schematic diagram of making the open-flux path inductor for the present invention;
Fig. 2 is a perspective exploded view of making the open-flux path inductor for the present invention;
Fig. 3 does not grind preceding schematic perspective view for Fig. 2 of the present invention;
Fig. 4 does not grind preceding generalized section for Fig. 2 of the present invention;
Fig. 5 is the schematic perspective view of Fig. 3 of the present invention after having ground;
Fig. 6 is the generalized section of Fig. 3 of the present invention after having ground;
Fig. 7 is a magnetic circuit schematic diagram of making the open-flux path inductor for the present invention;
Fig. 8 is a steps flow chart schematic diagram of making the closed magnetic circuit inductor for the present invention;
Fig. 9 is a perspective exploded view of making the closed magnetic circuit inductor for the present invention;
Figure 10 does not grind preceding schematic perspective view for Fig. 9 of the present invention;
Figure 11 does not grind preceding generalized section for Fig. 9 of the present invention;
Figure 12 is the schematic perspective view of Figure 10 of the present invention after having ground;
Figure 13 is the generalized section of Figure 10 of the present invention after having ground;
Figure 14 is a magnetic circuit schematic diagram of making the closed magnetic circuit inductor for the present invention.
To shown in Figure 6, according to the present invention, when making the open-flux path inductor, this method comprises following step at least as Fig. 1:
The step 1 of moulding unshakable in one's determination is to make a drum-shaped core 10 with magnetic ferrites for the moulding material, and the thickness of the Shang of drum-shaped core 10 Xia File plate 11,12 can be thicker;
The step 2 of winding coil is that drum-shaped core 10 is given clamping, and with coil 20 windings on winding axle center 13;
The exert oneself step 4 of terminal of welding is welded two coil terminals 21,22 and two terminal 41,42 of exerting oneself;
The step 5 of encapsulating encapsulation, be with drum-shaped core 10, coil 20, and two terminal 41,42 grades of exerting oneself insert in the mould, pour into insulation colloid 50 and be coated and fixed, and go up lower baffle 11,12 unnecessary barrier thickness 11a is only arranged, 12a exposes;
The step 6 of attrition process be that 12a bestows suitable attrition process to unnecessary barrier thickness 11a, and with unnecessary barrier thickness 11a, 12a is removed, to reach less integral thickness.
To shown in Figure 4, the made open-flux path inductor according to the present invention comprises at least as Fig. 2: a drum-shaped core 10, a coil 20, two exert oneself terminal 41,42, and formation such as insulation colloid 50; Wherein:
This drum-shaped core 10 is by the moulding of magnetic ferrites institute, and has last lower baffle 11,12 and winding axle center 13;
This coil 20 is to be set around on the winding axle center 13, and has two coil terminals 21,22;
This two terminal 41,42 of exerting oneself is to weld mutually with two coil terminals 21,22;
This colloid 50 that insulate, be in drum-shaped core 10, coil 20, and two exert oneself terminal 41,42 grades insert mould after encapsulating form;
And by attrition process, the unnecessary barrier thickness 11a that encapsulating encapsulation back can be exposed, 12a is removed, and reaching less integral thickness, and makes as Fig. 5 to ultra-thin inductor device shown in Figure 6.
Ought be illustrated that around here two terminals 41,42 of exerting oneself are to be made by 40 punching presses of a thin copper belt body, plating scolding tin handling ease and quality are even; Preferable manufacture can be and earlier the clouts in the middle of the thin copper belt body 40 given punching press and remove, and will desire to be bent as the part of terminal again, can form two terminals 41,42 of exerting oneself; Because this mode can be made into several right terminals 41,42 of exerting oneself, so the inventive method has the characteristic of continuous processing.
Ought be illustrated again that around here last lower baffle 11,12 further also can be bestowed mirror process, with the quality and the outward appearance of the product that progresses greatly after attrition process on last lower baffle 11,12; And also can further on last lower baffle 11,12, bestow laser and carve characters, to indicate the model of the producer and product.
As shown in Figure 7, be the magnetic circuit schematic diagram of making the open-flux path inductor for the present invention; Being the clear magnetic circuit that shows, is that the state with not encapsulating encapsulation is illustrated that as shown in the figure, the periphery of coil 20 can form a flux path 70, and in the outer formation one open-flux path section 71 of drum-shaped core 10, and constitutes the magnetic field of an open-flux path.
To shown in Figure 13, according to the present invention, when making the closed magnetic circuit inductor, this method comprises following step at least as Fig. 8:
The step 1 of moulding unshakable in one's determination is to make a drum-shaped core 10 with magnetic ferrites for the moulding material, and the thickness of the Shang of drum-shaped core 10 Xia File plate 11,12 can be thicker;
The step 2 of winding coil is that drum-shaped core 10 is given clamping, and with coil 20 windings on winding axle center 13;
Inserting the step 3 of sleeve, is that drum-shaped core 10 and coil 20 are inserted a sleeve iron core 30, and sleeve iron core 30 also is the moulding of magnetic ferrites, and sleeve 30 upper ends unshakable in one's determination also have rim of the mouth, two ends 31,32, can pass through for two coil terminals 21,22;
The exert oneself step 4 of terminal of welding is welded two coil terminals 21,22 and two terminal 41,42 of exerting oneself;
The step 5 of encapsulating encapsulation, be with drum-shaped core 10, coil 20, and two terminal 41,42 grades of exerting oneself insert in the mould, pour into insulation colloid 50 and being coated and fixed, and the unnecessary barrier thickness 11a of last lower baffle 11,12 is only arranged, 12a, and the unnecessary thickness 33 of sleeve iron core 30 exposes;
The step 6 of attrition process is the unnecessary barrier thickness 11a to last lower baffle 11,12,12a, and the unnecessary thickness 33 that reaches sleeve iron core 30 is bestowed suitable attrition process, and will be removed, to reach less integral thickness.
To shown in Figure 11, the made open-flux path inductor according to the present invention comprises at least as Fig. 9: a drum-shaped core 10, a coil 20, a sleeve iron core 30, two exert oneself terminal 41,42, and formation such as insulation colloid 50; Wherein:
This drum-shaped core 10 is by the moulding of magnetic ferrites institute, and has last lower baffle 11,12 and winding axle center 13;
This coil 20 is to be set around on the winding axle center 13, and has two coil terminals 21,22;
This sleeve iron core 30 is by the moulding of magnetic ferrites institute, and upper end and have rim of the mouth, two ends 31,32, can pass through for two coil terminals 21,22;
This two terminal 41,42 of exerting oneself is to weld mutually with two coil terminals 21,22;
This colloid 50 that insulate, be in drum-shaped core 10, coil 20, sleeve iron core 30, and two exert oneself terminal 41,42 grades insert mould after encapsulating form;
And by attrition process, can be with after the encapsulating encapsulation, last lower baffle 11,12 and the unnecessary barrier thickness 11a that exposed of sleeve iron core 30,12a and unnecessary thickness 33 are removed, and reaching less integral thickness, and make as Figure 12 to ultra-thin inductor device shown in Figure 13.
Ought be illustrated that around here two terminals 41,42 of exerting oneself are to be made by 40 punching presses of a thin copper belt body, plating scolding tin handling ease and quality are even; Preferable manufacture can be and earlier the clouts in the middle of the thin copper belt body 40 given punching press and remove, and will desire to be bent as the part of terminal again, can form two terminals 41,42 of exerting oneself; Because this mode can be made into several right terminals 41,42 of exerting oneself, so the inventive method has the characteristic of continuous processing.
Ought be illustrated again that around here last lower baffle 11,12 further also can be bestowed mirror process, with the quality and the outward appearance of the product that progresses greatly after attrition process on last lower baffle 11,12; And also can further on last lower baffle 11,12, bestow laser and carve characters, to indicate the model of the producer and product.
As shown in figure 14, be the magnetic circuit schematic diagram of making the closed magnetic circuit inductor for the present invention; Being the clear magnetic circuit that shows, is that the state with not encapsulating encapsulation is illustrated that as shown in the figure, coil 20 can form a flux path 72 along drum-shaped core 10 and sleeve unshakable in one's determination 30, and constitutes the magnetic field of a closed magnetic circuit.
Intend the lay special stress on explanation around here, the topmost intention spirit of the present invention is to provide a kind of manufacture method of thin inductor, has preferable mechanical strength by magnetic ferrites, can carry out the characteristic of attrition process, make inductor in processing procedure, the Shang Xia File plate 11 of this drum-shaped core 10,12 molding thickness can be more than 0.6mm and be easy to moulding, is beneficial to manufacture, and makes drum-shaped core 10 be easy to clamping when coil 20 windings, and after the encapsulating encapsulation, via suitable attrition process, last lower baffle 11, but 12 thickness skiving is to the 0.3mm, its mechanical strength approximates the metal dust formed body of 1mm, multiple in encapsulation coat down fixing, whole structural strength safety does not have anxiety, goes up lower baffle 11 after then grinding skiving, 12 gross thickness can reach about 0.6mm approximately, therefore, the integral thickness of inductor is able to further be reduced, and when the height of winding axle center 13 during about the 0.4mm left and right sides, the integral thickness of inductor can reach about 1mm approximately, and then makes an extra-thin inductor; Historical facts or anecdotes is the quantum jump on inductor is made, and is the elite place of intention of the present invention.
Claims (14)
1. the manufacture method of a thin inductor, it is characterized in that: be to utilize magnetic ferrites to have preferable mechanical strength, can carry out the characteristic of attrition process, make inductor in processing procedure, molding thickness unshakable in one's determination can be thicker, and to the encapsulating encapsulation, the beginning is given the grinding skiving again, to make an extra-thin open-flux path inductor, this method comprises following step at least:
(a) step of moulding unshakable in one's determination is to make a drum-shaped core with magnetic ferrites, and the last lower baffle of drum-shaped core can have thicker thickness;
(b) step of winding coil is that drum-shaped core is given clamping, and with the coil winding on winding axle center;
(c) the exert oneself step of terminal of welding is welded two coil terminals and two terminal of exerting oneself;
(d) step of encapsulating encapsulation, be with drum-shaped core, coil, and two exert oneself terminals etc. insert in the mould, and pour into the insulation colloid and be coated and fixed, and will go up lower baffle unnecessary thickness to be ground and be exposed;
(e) step of attrition process is that last lower baffle is bestowed suitable attrition process, and unnecessary barrier thickness is removed;
By this, make the integral thickness of inductor can further give reduction again, and reach less integral thickness.
2. the manufacture method of thin inductor according to claim 1 is characterized in that, this open-flux path inductor comprises a drum-shaped core, a coil, two exert oneself terminal, and formation such as insulation colloid etc. at least.
3. the manufacture method of thin inductor according to claim 2 is characterized in that:
This drum-shaped core is by the moulding of magnetic ferrites institute, and has last lower baffle and winding axle center;
This coil is to be set around on the winding axle center and to have two coil terminals;
This two terminal of exerting oneself is to weld mutually with two coil terminals;
This colloid that insulate, be in drum-shaped core, coil, and two exert oneself terminal etc. insert mould after encapsulating form;
And by attrition process, the unnecessary barrier thickness that encapsulating encapsulation back can be exposed is removed, to reach less integral thickness.
4. the manufacture method of thin inductor according to claim 3 is characterized in that, this two terminal of exerting oneself further can be made by thin copper belt body institute punching press, and plating scolding tin handling ease and quality are even, and processing continuously.
5. the manufacture method of thin inductor according to claim 4 is characterized in that, this thin copper belt body, and the clout punching press in the middle of can being about to is earlier removed, and will desire to be bent as the part of terminal again, promptly can be made into several right terminals of exerting oneself.
6. the manufacture method of thin inductor according to claim 3 is characterized in that, lower baffle on this after attrition process, further also can be bestowed mirror process, with the quality and the outward appearance of the product that progresses greatly on last lower baffle.
7. the manufacture method of thin inductor according to claim 3 is characterized in that, lower baffle on this after attrition process, also can be further bestowed laser and carved characters, to indicate the model of the producer and product on paper plate up and down.
8. the manufacture method of a thin inductor, it is characterized in that: be to utilize magnetic ferrites to have preferable mechanical strength, can carry out the characteristic of attrition process, make inductor in processing procedure, molding thickness unshakable in one's determination can be thicker, and to the encapsulating encapsulation, the beginning is given the grinding skiving again, to make an extra-thin closed magnetic circuit inductor, this method comprises following step at least:
(a) step of moulding unshakable in one's determination is to make a drum-shaped core with magnetic ferrites, and the last lower baffle of drum-shaped core can have thicker thickness;
(b) step of winding coil is that drum-shaped core is given clamping, and with the coil winding on winding axle center;
(c) inserting the step of sleeve, is that drum-shaped core and coil are inserted a sleeve iron core, and the sleeve iron core also is the moulding of magnetic ferrites, and sleeve iron core upper end also has the rim of the mouth, two ends, can pass through for coil terminals, and then form the magnetic field of a closed magnetic circuit;
(d) the exert oneself step of terminal of welding is welded two coil terminals and two terminal of exerting oneself;
(e) step of encapsulating encapsulation, be with drum-shaped core, coil, sleeve iron core, and two exert oneself terminals etc. insert in the mould, and pour into the insulation colloid and be coated and fixed, and only will go up lower baffle and sleeve unnecessary thickness to be ground unshakable in one's determination is exposed;
(f) step of attrition process is that the unnecessary thickness of last lower baffle and sleeve iron core is bestowed suitable attrition process, and with its removal;
By this, make the integral thickness of inductor can further give reduction again, and reach less integral thickness.
9. the manufacture method of thin inductor according to claim 8 is characterized in that, this closed magnetic circuit inductor comprises a drum-shaped core, a coil, a sleeve iron core, two exert oneself terminal, and formation such as insulation colloid etc. at least.
10. the manufacture method of thin inductor according to claim 9 is characterized in that:
This drum-shaped core is by the moulding of magnetic ferrites institute, and has last lower baffle and winding axle center;
This coil is to be set around on the winding axle center and to have two coil terminals;
This sleeve iron core is by the moulding of magnetic ferrites institute, and upper end and have the rim of the mouth, two ends, can pass through for two coil terminals;
This two terminal of exerting oneself is to weld mutually with two coil terminals;
This colloid that insulate, be in drum-shaped core, coil, sleeve iron core, and two exert oneself terminal etc. insert mould after encapsulating form;
And by attrition process, the unnecessary thickness that encapsulating encapsulation back can be exposed is removed, to reach less integral thickness.
11. the manufacture method of thin inductor according to claim 10 is characterized in that, this two terminal of exerting oneself further can be made by thin copper belt body institute punching press, and plating scolding tin handling ease and quality are even, and processing continuously.
12. the manufacture method of thin inductor according to claim 11 is characterized in that, this thin copper belt body, and the clout punching press in the middle of can being about to is earlier removed, and will desire to be bent as the part of terminal again, promptly can be made into several right terminals of exerting oneself.
13. the manufacture method of thin inductor according to claim 10 is characterized in that, lower baffle on this after attrition process, further also can be bestowed mirror process, with the quality and the outward appearance of the product that progresses greatly on last lower baffle.
14. the manufacture method of thin inductor according to claim 10 is characterized in that, lower baffle on this after attrition process, also can be further bestowed laser and is carved characters, to indicate the model of the producer and product on paper plate up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115962 CN1391241A (en) | 2001-06-11 | 2001-06-11 | Process for preparing thin inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115962 CN1391241A (en) | 2001-06-11 | 2001-06-11 | Process for preparing thin inductor |
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| CN1391241A true CN1391241A (en) | 2003-01-15 |
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| CN 01115962 Pending CN1391241A (en) | 2001-06-11 | 2001-06-11 | Process for preparing thin inductor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360723A (en) * | 2011-06-29 | 2012-02-22 | 万齐 | Injection molding method for magnetic inductor |
| CN103578731A (en) * | 2013-09-30 | 2014-02-12 | 信源电子制品(昆山)有限公司 | Manufacturing method of surface mount coil inductor |
| WO2021104526A3 (en) * | 2020-12-04 | 2021-10-14 | 深圳顺络电子股份有限公司 | Integrally formed inductor and manufacturing method therefor |
-
2001
- 2001-06-11 CN CN 01115962 patent/CN1391241A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360723A (en) * | 2011-06-29 | 2012-02-22 | 万齐 | Injection molding method for magnetic inductor |
| CN103578731A (en) * | 2013-09-30 | 2014-02-12 | 信源电子制品(昆山)有限公司 | Manufacturing method of surface mount coil inductor |
| WO2021104526A3 (en) * | 2020-12-04 | 2021-10-14 | 深圳顺络电子股份有限公司 | Integrally formed inductor and manufacturing method therefor |
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