CN214505222U - Double-electrode integrally-formed inductor - Google Patents
Double-electrode integrally-formed inductor Download PDFInfo
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- CN214505222U CN214505222U CN202121022187.7U CN202121022187U CN214505222U CN 214505222 U CN214505222 U CN 214505222U CN 202121022187 U CN202121022187 U CN 202121022187U CN 214505222 U CN214505222 U CN 214505222U
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- inductor
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 42
- 239000000843 powder Substances 0.000 claims abstract description 40
- 238000004512 die casting Methods 0.000 claims abstract description 7
- 239000006247 magnetic powder Substances 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 239000004962 Polyamide-imide Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 230000003064 anti-oxidating effect Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229920002312 polyamide-imide Polymers 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006052 feed supplement Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a double-electrode integrated inductor, which adopts the technical scheme that the inductor comprises a coil, a metal powder core and a terminal, wherein the outer layer of the coil is provided with an enameled wire package, the coil is embedded in the metal powder core, the enameled wire at the tail end of the coil is removed and then is flattened to obtain a pin end, and the pin end is fixedly connected with the terminal; the terminals are symmetrically arranged on the upper surface and the lower surface of the metal powder core respectively; the metal powder core is insulating magnetic powder; the coil and the terminal are fixedly connected and are formed by die-casting the metal powder core through a forming die. The utility model has the technical effects that by adopting the double-sided electrode, the test can be carried out in the production process no matter which side faces upwards or downwards; the problem that the production line is stopped due to material reversing can be solved at the client, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of magnetism electronic components, concretely relates to bipolar electrode integrated into one piece inductance.
Background
Electronic terminal products are continuously developed towards miniaturization, integration, high power, multi-functionalization and the like, and integrally formed inductors are widely applied to the fields of consumer electronics, digital products, mobile communication, computers, set top boxes, automotive electronics and the like due to excellent electrical characteristics and shielding properties, and gradually become the mainstream direction of the inductor market. Especially, in recent half years, in order to match with the characteristics of the downstream electronic products of being thin and efficient in design, some inductors adopting new materials and new processes are sold in various markets, and at present, all inductor manufacturers actively expand the production of important product lines. With the continuous and wide use of products, the market capacity is doubled, and in the last three years, the demand reaches 360 hundred million per year and only the consumption reaches 200 hundred million per year. The expected demand of the notebook computer is calculated by using 50 inductors per computer, and the expected annual usage is 80 hundred million; the automobile industry is a big opportunity for manufacturers of magnetic components such as power inductors, high-frequency transformers and the like in the future.
Along with the increase of the market demand, the production efficiency needs to be correspondingly improved to meet the market demand. The manufacturing process needs to be optimized to improve the production efficiency, and the integrally formed inductor manufacturers in the market adopt single-sided electrodes for mounting. Need pass through the detection through vibration of vibration dish many times when pasting dress, it is long consuming time, inefficiency. When SMT patch mounting is carried out at a client, time waste and cost increase are caused by line stop caused by the fact that the material feeding direction or the material supplementing direction is reversed.
Therefore, how to further improve the production efficiency and optimize the process technology are problems to be solved urgently by those skilled in the art.
Disclosure of Invention
An object of the utility model is to provide a bipolar electrode integrated into one piece inductance to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the double-electrode integrally-formed inductor comprises a coil, a metal powder core and a terminal,
the coil is covered by an enameled wire, the coil is embedded in the metal powder core, the enameled wire at the tail end of the coil is removed and then flattened to obtain a pin end, and the pin end is connected with a terminal in a spot welding manner;
the terminals are respectively and symmetrically arranged on the upper surface and the lower surface of the metal powder core;
the metal powder core is insulated magnetic powder;
the coil and the terminal are fixedly connected and are formed by die-casting the metal powder core through a forming die.
Preferably, the terminals are oxidation-resistant metal terminals, and the terminals are tightly attached to the surfaces of two opposite side surfaces with small area of the inductor main body.
Preferably, the coil is formed by winding a polyamide-imide enameled wire copper wire with the temperature resistance level of more than 200 ℃.
Preferably, the metal powder core is composed of a soft magnetic iron-based alloy composite powder.
Preferably, the surface of the integrally formed inductor is subjected to painting treatment.
Preferably, the part of the surface of the coil with the metal powder core is sprayed with a coating, and pin ends at two ends of the coil with the metal powder core are encapsulated.
The utility model discloses a technological effect and advantage:
the utility model adopts the design of double-sided electrodes, which solves the problem that the integrated inductor can be tested no matter which side faces upwards or downwards in the production test package; the problem of production line stop caused by material return is solved at the client, and the working efficiency is improved; the coil is embedded in the inductor main body, magnetic loss is reduced, noise in working is reduced due to a fully-closed structure, and the characteristics of the product are further improved.
Drawings
Fig. 1 is a front view of a dual-electrode integrally formed inductor according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of an integrally formed inductor with two electrodes according to an embodiment of the present invention;
fig. 3 is a reverse side view of the inductor integrally formed with two electrodes according to an embodiment of the present invention.
In the figure: 1-a coil; 2-a metal powder core; 3-terminal.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a double-electrode integrated into one piece inductance as shown in figure 1, figure 2 and figure 3, including pedestal and winding body, the pedestal form by metal magnetic powder die-casting, inside the winding body is located the pedestal, has the pin-out on the winding body, the pin-out takes shape on the pedestal surface.
Specifically, in this embodiment, the base includes a metal powder core 2, the winding body includes a coil 1 and a terminal 3, an outer layer of the coil 1 is covered by an enameled wire, the coil 1 is embedded in the metal powder core 2, the enameled wire at the end of the coil 1 is removed and then flattened to obtain a pin end, and the pin end is connected with the terminal 3 by spot welding; the terminals 3 are respectively and symmetrically arranged on the upper surface and the lower surface of the metal powder core 2; the metal powder core 2 is insulating magnetic powder; the coil and the terminal 3 are fixedly connected and are formed by die casting of the metal powder core 2 through a forming die.
In the embodiment, the coil 1 is positioned inside the metal powder core 2, and the coil 1 is formed by winding an enameled wire; the enameled wire is divided into a round enameled wire and a flat enameled wire, and the coil 1 can be wound into a round shape or an oval shape. The coil 1 is a coil formed by winding a copper wire, and because the copper has the characteristic of high temperature resistance, the temperature rise of the inductor during working is slowed down, the working temperature is reduced, and the service life of the inductor is longer. Removing the enameled wire at the tail end of the coil 1, and flattening to obtain a pin end; fixing the pin end and the welding end by spot welding; then the material is put into a forming die and is added with insulating magnetic powder to be pressed into a forming part.
The terminal 3 includes a lead frame leg portion for connecting a lead end of the coil 1 and an external terminal for connecting with an external element as a contact of the integrally molded inductor. The terminal 3 serves as an element for electrically connecting the device and the external conductor, and is mainly used for transmitting an electrical signal. The number of the terminals 3 is set to be a pair of the upper surface and the lower surface respectively, and the terminals are tightly attached to the surfaces of two opposite side surfaces with small area of the chip inductor main body, so that the effect of transmitting electric signals is better.
The surface of the coil 1 is sprayed with a coating which is a coating capable of radiating heat away from an object or accelerating heat conduction in the form of infrared rays. The coating automatically radiates heat in the internal space of the object, so that the heat exchange is accelerated, the surface and internal temperature of the inductor are reduced, and the heat exchange rate is improved. After spraying, the insulation and corrosion resistance of the product are improved, the surface temperature diffusion of the integrally formed inductor is accelerated more effectively, and the maximum temperature rise of the surface of the product is reduced by about 10 ℃. Effectively reduced integrated into one piece inductance product in the use because the risk that spontaneous heating caused the damage to the inductance.
The surface of the integrally formed inductor is subjected to paint spraying treatment, so that the insulativity and the corrosion resistance of a product are improved, and the temperature rise amplitude of the product in the using process is reduced. Wherein the metal powder core 2 material is composed of soft magnetic iron-based alloy composite powder. The coil 1 is formed by winding a polyamide-imide enameled wire copper wire with the temperature resistance level of more than 200 ℃, namely an AIW copper wire.
50-60 parts of adhesive, 3-5 parts of silicon carbide, 1-5 parts of titanium dioxide, 1-2 parts of manganese dioxide, 1-5 parts of copper oxide, 3-7 parts of graphite, 2-10 parts of zirconium oxide and 2-8 parts of aluminum oxide are selected as the coating of the coating; and a mixture of ethylene diamine-based curing agents.
In the embodiment, the inductor body is made into a solid magnet formed by one-step compression molding of magnetic metal powder, and the solid magnet and the coil 1 embedded in the solid magnet form a closed magnetic field together, so that the structure stabilizes the structural performance of the inductor. The integrally formed inductor has low direct current impedance due to one-step punch forming, achieves the effect of high-energy storage of the inductor, and improves the current resistance.
Different from the traditional wire-wound inductor, the coil 1 is embedded in the inductor main body, so that the magnetic loss is reduced, and the noise in working is reduced due to the totally-enclosed structure. The setting of bipolar electrode promotes work efficiency in production test packing, has solved the anti-material problem of integrated into one piece inductance at customer end paster.
The preparation process of the double-electrode integrally-formed inductor comprises the following steps of: embedding a coil 1 in metal powder, performing die-casting molding on the coil 1 embedded in the metal powder, reinforcing the die-cast coil 1 to obtain the coil 1 with the metal powder core 2, and spraying a coating on the surface of the coil with the metal powder core 2 by using a coating solution. And encapsulating the terminals 3 at the two ends of the coil with the metal powder core 2 to protect the terminals 3 at the two ends of the coil with the metal powder core 2 and prevent the coating from being sprayed on the surfaces of the terminals 3 to influence the conductivity of the inductor.
The invention principle is as follows: the integrally formed inductor comprises a base body and a winding body, wherein the base body is a metal powder forming part, and the winding is a high-quality enameled coil and an anti-oxidation metal terminal part connected together. The winding body is embedded into metal powder and is formed by die casting through an integrated forming machine, the SMD pins are anti-oxidation metal terminals, and the lead-out pins of the pin winding body are directly formed on the surface of the base body and have higher inductance and smaller leakage inductance compared with the traditional inductance; the inductor is designed in an SMD structure, so that the inductor is not damaged when in use, and the production efficiency can be improved. The utility model discloses on current basis, have the single face a slice to change into the positive and negative with the electrode and all have the electrode, solved that meet in the production when the customer end carries out the SMT paster, because of the supplied materials direction or lead to the shut down line in the feed supplement direction is reverse and cause the time extravagant, the cost increase problem.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. Double-electrode integrated into one piece inductance its characterized in that: comprises a coil, a metal powder core and a terminal,
the coil is covered by an enameled wire, the coil is embedded in the metal powder core, the enameled wire at the tail end of the coil is removed and then flattened to obtain a pin end, and the pin end is fixedly connected with a terminal;
the terminals are respectively and symmetrically arranged on the upper surface and the lower surface of the metal powder core;
the metal powder core is insulated magnetic powder;
the coil and the terminal are fixedly connected and are formed by die-casting the metal powder core through a forming die.
2. The inductor of claim 1, wherein: the terminal is an anti-oxidation metal terminal, the terminal is tightly attached to the surface of the inductor main body, and the surface is one of two opposite side faces with a smaller area.
3. The inductor of claim 1, wherein: the coil is formed by winding a polyamide-imide enameled wire copper wire with the temperature resistance grade of more than 200 ℃.
4. The inductor of claim 1, wherein: the metal powder core is composed of soft magnetic iron-based alloy composite powder.
5. The inductor of claim 2, wherein: the surface of the inductor is subjected to paint spraying treatment.
6. The inductor of claim 1, wherein: and spraying a coating on the surface of the coil, and encapsulating the pin ends at two ends of the coil with the metal powder core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121022187.7U CN214505222U (en) | 2021-05-13 | 2021-05-13 | Double-electrode integrally-formed inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121022187.7U CN214505222U (en) | 2021-05-13 | 2021-05-13 | Double-electrode integrally-formed inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214505222U true CN214505222U (en) | 2021-10-26 |
Family
ID=78204837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121022187.7U Active CN214505222U (en) | 2021-05-13 | 2021-05-13 | Double-electrode integrally-formed inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214505222U (en) |
-
2021
- 2021-05-13 CN CN202121022187.7U patent/CN214505222U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 230601 workshop 2, tianmenhu Industrial Park, 150 meters south of the intersection of Tianmen road and Jinxiu Avenue, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Xinci Technology Co.,Ltd. Country or region after: China Address before: 230601 workshop 2, tianmenhu Industrial Park, 150 meters south of the intersection of Tianmen road and Jinxiu Avenue, Hefei Economic and Technological Development Zone, Anhui Province Patentee before: Anhui Bowei New Magnetic Technology Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |