CN201655476U - Molded inductor - Google Patents
Molded inductor Download PDFInfo
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- CN201655476U CN201655476U CN2010203016827U CN201020301682U CN201655476U CN 201655476 U CN201655476 U CN 201655476U CN 2010203016827 U CN2010203016827 U CN 2010203016827U CN 201020301682 U CN201020301682 U CN 201020301682U CN 201655476 U CN201655476 U CN 201655476U
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- inductance
- plasticizing
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- magnetic body
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Abstract
The utility model discloses a molded inductor. The molded inductor comprises a magnetic body formed by the injection of magnetic material liquid, and an inductor unit arranged inside the magnetic body, wherein the inductor unit comprises a coil and a magnetic core shaft whereof a surface is wound around by the magnetic core. The coil, which has wound around the magnetic core in the inductor assembly which comprises the magnetic body and the inductor unit, is further disposed in a mold, wherein the mold is formed by liquid injection magnetic materials and consequently wraps and fixes the magnetic body in the periphery of the inductor unit so as to form a molded inductor. The mold in this utility model includes at least a first mold and a second mold, and probably a third mold, wherein a first convex mold column in the first mold and the material charging channel in the second mold, even a second convex mold column in the third mold are shaped respectively into a square and mutually nested. In this way, the sizes of the magnetic body and the inductor unit can be determined and requires no further processing so as to form an integrated molded inductor mold without exerting pressure or modification upon mold-opening.
Description
Technical field
The present invention relates to a kind of plasticizing inductance, outstanding reference and the fast and convenient manufacturing of a kind of energy also need not be modified after opening film and tool slimming, low clearance screen type inductance, refer in particular to and effectively to control its stabilised quality, and then reach plasticizing inductance and the mfg. moulding die thereof of saving manpower and improving qualification rate.
Background technology
Electronic product under scientific and technological now, the consumer tends under the identical function requirement, selects to possess product light, thin, short, little advantage, so the electronic building brick that electronic product used now, be directed to basic demand with this invariably, could in science and technology competition, show one's talent.Wherein about inductor (Inductor), generally speaking, because inductor needs a magnetic stamen, twine this magnetic stamen with electric wire simultaneously and form, its volume is difficult for dwindling, and often causes design of electronic products person's puzzlement; So a kind of screen type induction structure (Sbie1ded Construction) just accumulates educates and gives birth to.
The tradition induction structure, because of the overwhelming majority all is the framework of making the open limit of tool chamber earlier, again a conductor coils that disposes magnetic core is configured in this chamber movably, utilizes filler or injection material that this conductor coils is fixed in this chamber at last again, to constitute inductor structure.
General existing inductor as Fig. 9, shown in Figure 10, includes the inductance 70 that a body 60 and that has a breach 61 is located in this body 60 and constitutes.Wherein this body 60 forms for the magnetic conduction powder compaction, establishes a breach 61 at least and is a cup shape; This inductance 70 is established the core axis 72 that a surface is arranged with coil 71, and this coil 71 and be provided with first pin 711 and second pin 712.When making, this inductance 70 is inserted in this body 60, be covered with around this inductance 70 with this magnetic conduction powder, utilize the shaping mould punch forming again.In view of the above, but no doubt should existing inductor 6 set coil 71 mat fillers be fixed in the set opening 61 of this body 60, can utilize this body 60 to block this inductance 70, avoid this inductance 70 directly to be exposed in the air; Yet, also because this coil 71 is not direct and this body 60 is integrated structure, and under the machine punch forming, lead easy deformation in its coil 71, and the also easy tunicle of the enamel-cover film on surface is moulded strength and is opened wide, adding needs to be heating and curing under high temperature, causes its rate of ageing to be accelerated, so qualification rate is low.Therefore, such as use the formed induction structure of machine punching press, all contain the magnetic conduction powder and be difficult for being dispersed evenly to the body bottom, and in the punching course, easily cause the lead rhegma, influence inductance characteristic, the defective that also has finished product easily to split what is more, cause that product produces that weak heat-dissipating, efficient are low, electromagnetic interference (have a greatly reduced quality for Electromagnetic Interference, EMI) shortcomings such as big, inductance value little (energy storage is few) and disqualification rate height by the effect that this inductor can be obtained.By this, just waste time cost, and processed complex also causes speed of production slow when making, the increase of the defective item expenditure that also raises the cost relatively again is so generally having inductor now, can't to meet the user required when reality is used.
The utility model content
The utility model main purpose is, overcome the problems referred to above that known skill meets with and the fast and convenient manufacturing of a kind of energy is provided and after opening film, need not be modified and tool slimming, low clearance screen type inductance are purpose, and can effectively control its stabilised quality, and then reach the plasticizing inductance of saving manpower and improving qualification rate.
The utility model secondary objective is, provide a kind of and can implement liquid perfusion with the plain type forcing press, whole process need not to press, can make shape and Inside coil thereof behind the demoulding not have any infringement, and then can avoid causing the plasticizing inductance mfg. moulding die of copper cash easy deformation in the coil fully with stamping technology.
Another purpose of the utility model is, providing a kind of can significantly reduce cost of manufacture and simplify manufacturing process, and the increase speed of production, in order to do so that a good heat dissipation, efficient height, electromagnetic interference (ElectromagneticInterference, the plasticizing inductance that EMI) little and inductance value is high to be provided.
The utility model purpose again is, provides a kind of size in order to do magnetic body that makes this plasticizing inductance and inductance unit to be determined and need not reprocess, and must not exert pressure and die sinking must not modified to constitute, in order to do the mould that can one-body moldedly produce this plasticizing inductance.
To achieve these objectives, the technical scheme that the utility model adopted is: a kind of plasticizing inductance, its through liquid state perfusion and one-body molded be cubical Inductive component, it comprises:
One magnetic body forms with the liquid perfusion of magnetic material, has a depressed part that is depressed in its clinodiagonal position, bottom surface;
One inductance unit, be located in this magnetic body, comprise and be provided with the core axis that a coil and a surperficial spiral are arranged with this coil, wherein these coil two ends form the two end pin that extend in the same direction respectively, each end pin is exposed to respectively outside the depressed part of this magnetic body bottom surface, then enclose in this coil around the hollow bulb that forms a lateral direction penetrating, and the axial direction of this hollow bulb is vertical with the bearing of trend of this end pin, make this core axis be located in this hollow bulb, in order to do in the formed magnetic circuit after this coil feeds electric current; And
With above-mentioned magnetic body and the integrated Inductive component of inductance unit, be that the coil that will be set around this core axis is placed in the mould, utilize liquid perfusion magnetic material to form and be this inductance unit magnetic body on every side that sealingly is coated and fixed fully, so that it is plastified the inductance moulding.
This plasticizing inductance is a screen type induction structure.This coil forms for the enamelled wire coiling.This plasticizing inductance is applicable to mobile computer, desktop PC, server and central processing unit.This plasticizing inductance is applicable to that also direct current is to the usefulness of direct current rectification in distributed power supply system and the programmable logic gate array.
The utility model also provides a kind of mfg. moulding die of above-mentioned plasticizing inductance, this plasticizing inductance has an inductance unit, reach a magnetic body that is coated and fixed around this inductance unit, and this inductance unit has a coil, and a surperficial spiral is arranged with the core axis of this coil, wherein these coil two ends form two respectively and extend in the same direction and be exposed to the outer end pin of this magnetic body bottom surface depressed part, and this mfg. moulding die comprises:
One first die, comprise the first punch post that is provided with at least more than, and be depressed in this first punch post more than at least one pair of and have a positioning jack that is stretched on the protuberance of its end face clinodiagonal position, be plugged in this in the positioning jack in order to the end pin that provides these inductance unit coil two ends to extend;
One second die, correspondence are pressed on this first die, comprise to be provided with at least to run through the sprue channel that this second die and aperture are column more than one, are poured in this sprue channel in order to the magnetic material liquid state to be provided, in order to do with this magnetic body that is shaped; And
Above-mentioned first punch post and sprue channel are respectively square and mutually nested.
Above-mentioned mould more comprises one the 3rd die, its correspondence is pressed on this second die, comprise the second punch post that is provided with at least more than, and this first punch post, this sprue channel and this second punch post are respectively square and mutually nested, in order to this magnetic material of the relative pressure injection of this first and second die, making its mould-forming is this magnetic body.
This first die is in the confining spectrum in relative this second die sprue channel aperture of its end face, has at least one locational protuberance of its clinodiagonal that is stretched on, and each is depressed in respectively on this protuberance positioning jack.
Compared with prior art, the beneficial effect that the utility model had is: the utility model can significantly reduce the cost of manufacture and simplification manufacturing process of plasticizing inductance, and increase speed of production, in order to do so that a good heat dissipation, efficient height, electromagnetic interference is little and inductance value is high plasticizing inductance to be provided, system need not be modified with fast and convenient manufacturing and after opening film and tool slimming, low clearance screen type inductance are purpose, can effectively control its stabilised quality, in order to do saving manpower and improve qualification rate to reach.
Description of drawings
Figure 1A is the schematic perspective view that the present invention plastifies inductance.
Figure 1B is the volume rendering schematic diagram that the present invention plastifies inductance.
Fig. 2 is the schematic side view that the present invention plastifies inductance.
Fig. 3 is the schematic top plan view that the present invention plastifies inductance.
Fig. 4 is the elevational schematic view that the present invention plastifies inductance.
Fig. 5 is the mould schematic diagram of a preferred embodiment of the present invention.
Fig. 6 is a preparation aspect schematic diagram of the present invention.
Fig. 7 is the mould of the present invention schematic diagram that is laminated.
Fig. 8 is the mould schematic diagram of another preferred embodiment of the present invention.
Fig. 9 is the preparation flow schematic diagram of existing induction structure.
Figure 10 is the schematic perspective view of existing induction structure.
Label declaration:
Plasticizing inductance (Inductive component) 1
End pin 211
First die 30,30a
The first punch post 31
End face 311,311a
Protuberance 312,312a
Second die 40,40a
Sprue channel 41,41a
The 3rd die 50
The second punch post 51
Embodiment
See also Figure 1A, Figure 1B～shown in Figure 4, be respectively the present invention and plastify the elevational schematic view that the schematic perspective view of inductance, volume rendering schematic diagram that the present invention plastifies inductance, schematic side view that the present invention plastifies inductance, schematic top plan view that the present invention plastifies inductance and the present invention plastify inductance.As shown in the figure: the present invention is a kind of plasticizing inductance, be with through liquid state perfusion and one-body molded for cubical Inductive component 1 is its feature, it comprises that at least a magnetic body 10 and an inductance unit 20 constitute.
This magnetic body 10 forms with the liquid perfusion of magnetic material, has a depressed part 12 that is depressed in its 11 clinodiagonal positions, bottom surface, wherein this magnetic material being mixed between the weight ratio of 1: 1～1: 9 scope, and is the optimum mixture ratio example with 1: 5 weight ratio by resin and iron powder.
This inductance unit 20 is located in this magnetic body 10, comprise and be provided with the core axis 22 that a coil 21 and a surperficial spiral are arranged with this coil 21, wherein this coil 21 is an enamelled wire, its two ends form the two end pin 211 that extend in the same direction respectively, each end pin 211 is exposed to respectively outside the depressed part 12 of these magnetic body 10 bottom surfaces 11, then enclose in this coil 21 around the hollow bulb 212 that forms a lateral direction penetrating, and the axial direction of this hollow bulb 212 is vertical with the bearing of trend of this end pin 211, make this core axis 22 be located in this hollow bulb 212, in order to do in the formed magnetic circuit after this coil 21 feeds electric currents.The above constitutes the plasticizing inductance 1 of a brand-new screen type induction structure (Shielded Construction).
By above-mentioned magnetic body 10 and inductance unit 20 integrated Inductive components 1, the coil 21 that is set around this core axis 22 is placed in the mould, be this inductance unit 20 magnetic body 10 on every side that sealingly is coated and fixed fully in order to do utilizing liquid perfusion magnetic material to form, so that it is plastified inductance 1 moulding.
Please further consult Fig. 5～shown in Figure 8, be respectively the be laminated mould schematic diagram of schematic diagram and another preferred embodiment of the present invention of the mould schematic diagram of a preferred embodiment of the present invention, preparation aspect schematic diagram of the present invention, mould of the present invention.As shown in Figure 5: the mfg. moulding die 2 of above-mentioned plasticizing inductance 1 comprises that at least one first die 30 and one second die 40 constitute.
In a preferred embodiment, this first die 30 comprises the first punch post 31 that is provided with at least more than, reach and be depressed in this first punch post 31 more than at least one pair of, and has a positioning jack 32 that is stretched on the protuberance 312 of its end face 311 clinodiagonal positions, the end pin 211 that extends in order to coil 21 two ends that this inductance unit 20 is provided is plugged in this in the positioning jack 32, as shown in Figure 6.
These second die, 40 correspondences are pressed on this first die 30, comprise to be provided with at least to run through the sprue channel 41 that this second die 40 and aperture are column more than one, are poured in this sprue channel 41 in order to the magnetic material liquid state to be provided, in order to do with this magnetic body 10 that is shaped.
Above-mentioned first punch post 31 and sprue channel 41 are respectively square and mutually nested, determined and need not be reprocessed in order to do the magnetic body 10 that makes this plasticizing inductance 1 and the size of inductance unit 20, must not exert pressure and die sinking must not modified to constitute, in order to do mould that can this plasticizing inductance 1 of the one-body molded manufacturing.
In this enforcement, more can further comprise one the 3rd die 50, its correspondence is pressed on this second die 40, comprise the second punch post 51 that is provided with at least more than, and this first punch post 31, this sprue channel 41 and this second punch post 51 are respectively square and mutually nested, use and this first and second die (30,40) this magnetic material of relative pressure injection, making its mould-forming is this magnetic body 10.
In another preferred embodiment, as shown in Figure 7, the present invention plastifies the mfg. moulding die 2a of inductance 1, comprises that at least one first die 30a and one second die 40a constitute.Wherein this first die 30a is in the confining spectrum A in the sprue channel 41a aperture of relative this second die 40a of its end face 311a, have and at least onely be stretched on the locational protuberance 312a of its clinodiagonal, and each is depressed in respectively on this protuberance 312a positioning jack 32a.In this embodiment, also more can further comprise one the 3rd die, can join above-mentioned the 3rd die 50 and implement with same structure.
When utilization, adopt the resin (approximately up to 20%) that higher proportion is arranged than conventional art in the magnetic material of the present invention's perfusion, because liquid perfusion is equal scale strength, therefore can implement liquid perfusion with the plain type forcing press, whole process need not to use mechanical stamping, so need not press, can make shape and Inside coil thereof behind the demoulding not have any infringement, still keep with perfusion before living optimum state, can avoid causing the problem of copper cash easy deformation in the coil fully with stamping technology.Therefore, the present invention plastifies inductance and possesses following columns point feature:
(a) plastify the highest 10.5mm of can be made into of inductance, it is height the lowest in the existing plasticizing inductance for this reason;
(b) be the screen type induction structure;
(c) be in the plasticizing inductance of the highest 10.5mm size, the dc impedance the lowest;
(d) for can guarantee that the anti-electric current inductance value range of decrease is smooth-going;
(e) structure that is formed in one can prevent noise;
(f) can reach 1MHz for applying frequency; And
(g) product is that 100% unleaded (Lead (Pb)-Free) also meets hazardous substance illegal instruction (Restriction of Hazardous Substance, RoHS) standard.
By this, the present invention can significantly reduce cost of manufacture and simplify manufacturing process, and increase speed of production, in order to do so that a good heat dissipation to be provided, the efficient height, electromagnetic interference (Electromagnetic Interference, EMI) the plasticizing inductance that little and inductance value is high, system need not be modified and the tool slimming with fast and convenient manufacturing and after opening film, low clearance screen type inductance is a purpose, can effectively control its stabilised quality, and then reach the saving manpower and improve qualification rate, be fit to be applied to mobile computer (Notebook), desktop PC (Desktop), server (Server) and the arbitrary use of central processing unit (CPU), also can in distributed power supply system (Distributed Power Systems) or programmable logic gate array (Field Programmable Gate Array, FPGA) in direct current the direct current rectification is used.
In sum, the present invention is a kind of plasticizing inductance, can effectively improve the various shortcoming of existing inductance, one-body molded to pour into through liquid state is that cubical Inductive component is its feature, can significantly reduce cost of manufacture and simplify manufacturing process, and increase speed of production, in order to do so that a good heat dissipation to be provided, the efficient height, the plasticizing inductance that electromagnetic interference is little and inductance value is high, system need not be modified and the tool slimming with fast and convenient manufacturing and after opening film, low clearance screen type inductance is a purpose, can effectively control its stabilised quality, in order to do saving manpower and improve qualification rate to reach, and then make the generation of the present invention can be more progressive, more practical, more meeting user institute must, really met the application for a patent for invention important document, the whence proposes patent application in accordance with the law.
Only the above is preferred embodiment of the present invention only, when not limiting the scope of the present invention with this; So, all according to claim of the present invention and variation of description of the invention simple equivalent that content is done and modification, all should still belong in the patent covering scope of the present invention.
Claims (9)
1. plasticizing inductance, its through liquid state perfusion and one-body molded be cubical Inductive component, it is characterized in that comprising:
One magnetic body forms with the liquid perfusion of magnetic material, has a depressed part that is depressed in its clinodiagonal position, bottom surface;
One inductance unit, be located in this magnetic body, comprise and be provided with the core axis that a coil and a surperficial spiral are arranged with this coil, wherein these coil two ends form the two end pin that extend in the same direction respectively, each end pin is exposed to respectively outside the depressed part of this magnetic body bottom surface, then enclose in this coil around the hollow bulb that forms a lateral direction penetrating, and the axial direction of this hollow bulb is vertical with the bearing of trend of this end pin, make this core axis be located in this hollow bulb, in order to do in the formed magnetic circuit after this coil feeds electric current; And
With above-mentioned magnetic body and the integrated Inductive component of inductance unit, be that the coil that will be set around this core axis is placed in the mould, utilize liquid perfusion magnetic material to form and be this inductance unit magnetic body on every side that sealingly is coated and fixed fully, so that it is plastified the inductance moulding.
2. plasticizing inductance according to claim 1 is characterized in that, this plasticizing inductance is a screen type induction structure.
3. plasticizing inductance according to claim 1 is characterized in that, this coil forms for the enamelled wire coiling.
4. plasticizing inductance according to claim 1 is characterized in that, this plasticizing inductance is applicable to mobile computer, desktop PC, server and central processing unit.
5. plasticizing inductance according to claim 1 is characterized in that, this plasticizing inductance is applicable to that direct current is to the usefulness of direct current rectification in the distributed power supply system.
6. plasticizing inductance according to claim 1 is characterized in that, this plasticizing inductance is applicable to that direct current is used the direct current rectification in the programmable logic gate array.
7. mfg. moulding die that plastifies inductance, it is characterized in that this plasticizing inductance has an inductance unit, reach a magnetic body that is coated and fixed around this inductance unit, and this inductance unit has a coil, and a surperficial spiral is arranged with the core axis of this coil, wherein these coil two ends form two respectively and extend in the same direction and be exposed to the outer end pin of this magnetic body bottom surface depressed part, and this mfg. moulding die comprises:
One first die, comprise the first punch post that is provided with at least more than, and be depressed in this first punch post more than at least one pair of and have a positioning jack that is stretched on the protuberance of its end face clinodiagonal position, be plugged in this in the positioning jack in order to the end pin that provides these inductance unit coil two ends to extend;
One second die, correspondence are pressed on this first die, comprise to be provided with at least to run through the sprue channel that this second die and aperture are column more than one, are poured in this sprue channel in order to the magnetic material liquid state to be provided, in order to do with this magnetic body that is shaped; And
Above-mentioned first punch post and sprue channel are respectively square and mutually nested.
8. plasticizing inductance according to claim 7, it is characterized in that, more comprise one the 3rd die, its correspondence is pressed on this second die, comprise the second punch post that is provided with at least more than, and this first punch post, this sprue channel and this second punch post are respectively square and mutually nested, in order to this magnetic material of the relative pressure injection of this first and second die, making its mould-forming is this magnetic body.
9. plasticizing inductance according to claim 7, it is characterized in that, this first die is in the confining spectrum in relative this second die sprue channel aperture of its end face, has at least one locational protuberance of its clinodiagonal that is stretched on, and each is depressed in respectively on this protuberance positioning jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203016827U CN201655476U (en) | 2010-01-27 | 2010-01-27 | Molded inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203016827U CN201655476U (en) | 2010-01-27 | 2010-01-27 | Molded inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655476U true CN201655476U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010203016827U Expired - Lifetime CN201655476U (en) | 2010-01-27 | 2010-01-27 | Molded inductor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578728A (en) * | 2012-08-09 | 2014-02-12 | 三积瑞科技（苏州）有限公司 | Manufacturing method of distributed plastic inductor |
| US20160141091A1 (en) * | 2014-11-17 | 2016-05-19 | Huawei Technologies Co., Ltd. | Coupled inductor, magnet, and multi-level inverter |
| CN106298181A (en) * | 2016-08-17 | 2017-01-04 | 三积瑞科技（苏州）有限公司 | A kind of method preparing mold pressing inductance |
| CN107731452A (en) * | 2017-11-07 | 2018-02-23 | 安徽大学 | One kind cast inductance and preparation method thereof |
| CN111415813A (en) * | 2019-01-07 | 2020-07-14 | 台达电子企业管理（上海）有限公司 | Method for preparing inductor with vertical winding and injection molding die thereof |
| US11227856B2 (en) | 2019-01-07 | 2022-01-18 | Delta Electronics (Shanghai) Co., Ltd. | Multi-chip package power module |
| US11316438B2 (en) | 2019-01-07 | 2022-04-26 | Delta Eletronics (Shanghai) Co., Ltd. | Power supply module and manufacture method for same |
| US11399438B2 (en) | 2019-01-07 | 2022-07-26 | Delta Electronics (Shanghai) Co., Ltd. | Power module, chip-embedded package module and manufacturing method of chip-embedded package module |
-
2010
- 2010-01-27 CN CN2010203016827U patent/CN201655476U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578728A (en) * | 2012-08-09 | 2014-02-12 | 三积瑞科技（苏州）有限公司 | Manufacturing method of distributed plastic inductor |
| US20160141091A1 (en) * | 2014-11-17 | 2016-05-19 | Huawei Technologies Co., Ltd. | Coupled inductor, magnet, and multi-level inverter |
| CN105679520A (en) * | 2014-11-17 | 2016-06-15 | 华为技术有限公司 | Coupling inductor, magnet and multilevel inverter |
| CN106298181A (en) * | 2016-08-17 | 2017-01-04 | 三积瑞科技（苏州）有限公司 | A kind of method preparing mold pressing inductance |
| CN107731452A (en) * | 2017-11-07 | 2018-02-23 | 安徽大学 | One kind cast inductance and preparation method thereof |
| CN111415813A (en) * | 2019-01-07 | 2020-07-14 | 台达电子企业管理（上海）有限公司 | Method for preparing inductor with vertical winding and injection molding die thereof |
| US11227856B2 (en) | 2019-01-07 | 2022-01-18 | Delta Electronics (Shanghai) Co., Ltd. | Multi-chip package power module |
| US11316438B2 (en) | 2019-01-07 | 2022-04-26 | Delta Eletronics (Shanghai) Co., Ltd. | Power supply module and manufacture method for same |
| CN111415813B (en) * | 2019-01-07 | 2022-06-17 | 台达电子企业管理（上海）有限公司 | Method for preparing inductor with vertical winding and injection molding die thereof |
| US11399438B2 (en) | 2019-01-07 | 2022-07-26 | Delta Electronics (Shanghai) Co., Ltd. | Power module, chip-embedded package module and manufacturing method of chip-embedded package module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
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| CX01 | Expiry of patent term |