CN107424722B - A kind of inductance laminated type magnetic bead - Google Patents
A kind of inductance laminated type magnetic bead Download PDFInfo
- Publication number
- CN107424722B CN107424722B CN201710460253.0A CN201710460253A CN107424722B CN 107424722 B CN107424722 B CN 107424722B CN 201710460253 A CN201710460253 A CN 201710460253A CN 107424722 B CN107424722 B CN 107424722B
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- China
- Prior art keywords
- electrode
- magnetic bead
- diaphragm
- resistivity
- resistance
- Prior art date
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- 239000011324 bead Substances 0.000 title claims abstract description 61
- 239000007769 metal material Substances 0.000 claims abstract description 11
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003475 lamination Methods 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a kind of inductance laminated type magnetic beads, the first lamination magnetic bead being from top to bottom superimposed including three, second lamination magnetic bead and third layer stack magnetic bead, the first lamination magnetic bead includes the first upper diaphragm, first lower diaphragm and first electrode, the second lamination magnetic bead includes the second upper diaphragm, second lower diaphragm and second electrode, the third layer stack magnetic bead includes third upper diaphragm, diaphragm and third electrode under third, the first electrode, second electrode and third electrode are connected in parallel, the resistivity of the first electrode metal material is a, the resistivity of the second electrode metal material is b, b=γ a, the resistivity of the third electrode matel material is c,The configuration of the present invention is simple, design rationally, use γ times that the theory of parallel shunt makes the resistivity of second electrode for first electrode resistivity, and the resistivity of third electrode is second electrode resistivityTimes, the resistance of traditional magnetic bead is reduced, easy to use and operate, practical, using effect is good, convenient for promoting the use of.
Description
Technical Field
The invention belongs to the technical field of measuring devices, and particularly relates to a laminated magnetic bead for an inductor.
Background
The magnetic bead is a passive element, sometimes referred to as a magnetic ring, an EMI filter, an iron core, etc., and is a special choke coil, which is mostly ferrite, and is dedicated to suppressing high frequency noise and spike interference on a signal line and a power line, and has an ability to absorb electrostatic pulses. The magnetic beads are mainly used for absorbing ultrahigh frequency signals, for example, an RF circuit, a PLL (phase locked loop), an oscillating circuit, a circuit containing an ultrahigh frequency memory and the like all need to be added at a power supply input part, and the inductor is an energy storage element and is used for an LC oscillating circuit, a medium-low frequency filter circuit and the like, and the application frequency range of the inductor rarely exceeds 50 MHZ. The magnetic beads have very high resistivity and permeability, which are equivalent to a resistor and an inductor connected in series, but the resistance value and the inductance value change along with the frequency.
Disclosure of Invention
The present invention provides a stacked magnetic bead for an inductor, which has a simple structure and a reasonable design, and adopts a parallel shunt concept to make the resistance of the second electrode gamma times that of the first electrode, and the resistance of the third electrode gamma times that of the second electrodeThe magnetic bead has the advantages of being multiple in size, capable of improving rated current of laminated sheet type magnetic beads, capable of reducing resistance of traditional magnetic beads, convenient to use and operate, strong in practicability, good in using effect and convenient to popularize and use.
In order to solve the technical problems, the invention adopts the technical scheme that: including three from top to bottom superimposed magnetic bead unit, the magnetic bead unit is first stromatolite magnetic bead, second stromatolite magnetic bead and third stromatolite magnetic bead respectively, first stromatolite magnetic bead includes first diaphragm, first diaphragm down, and sets up first electrode between diaphragm and the first diaphragm down of going up, second stromatolite magnetic bead includes that the second goes up the diaphragmThe third laminated magnetic bead comprises a third upper diaphragm, a third lower diaphragm and a third electrode arranged between the third upper diaphragm and the third lower diaphragm, the first electrode, the second electrode and the third electrode are connected in parallel, the resistance of the first electrode metal material is a, the resistance of the second electrode metal material is b, the value range of b is gamma a, gamma is 1-20, and the resistance of the third electrode metal material is c, the value range of (1) to (20).
Foretell stromatolite formula magnetic bead for inductance which characterized in that: the first electrode, the second electrode and the third electrode are all aluminum foil electrodes.
Foretell stromatolite formula magnetic bead for inductance which characterized in that: the first electrode, the second electrode and the third electrode are all made of molybdenum-based alloy materials.
Foretell stromatolite formula magnetic bead for inductance which characterized in that: the above-mentioned
Compared with the prior art, the invention has the following advantages:
1. the invention has simple structure, reasonable design and convenient realization, use and operation.
2. The first electrode, the second electrode and the third electrode are arranged in parallel, and the resistance of the first electrode, the second electrode and the third electrode after being connected in parallel isImprove the rated current of the laminated magnetic bead and reduceThe resistance of traditional magnetic bead during operation for most electric current flows to the first electrode, plays the effect of reposition of redundant personnel.
In summary, the invention has simple structure and reasonable design, adopts the concept of shunt in parallel to make the resistance of the second electrode gamma times that of the first electrode, and the resistance of the third electrode gamma times that of the second electrodeThe magnetic bead has the advantages of being multiple in size, capable of improving rated current of laminated sheet type magnetic beads, capable of reducing resistance of traditional magnetic beads, convenient to use and operate, strong in practicability, good in using effect and convenient to popularize and use.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Description of reference numerals:
1-a first upper membrane; 1-2 — a first electrode; 1-3-a first lower membrane;
2-1-a second upper membrane; 2-2 — a second electrode; 2-3-a second lower membrane;
3-1-a third upper membrane; 3-2 — a third electrode; 3-third lower membrane.
Detailed Description
As shown in fig. 1, the present invention includes three magnetic bead units stacked from top to bottom, where the magnetic bead units are a first stacked magnetic bead, a second stacked magnetic bead, and a third stacked magnetic bead, the first stacked magnetic bead includes a first upper membrane 1-1, a first lower membrane 1-3, and a first electrode 1-2 disposed between the first upper membrane 1-1 and the first lower membrane 1-3, and the first stacked magnetic bead includes a first upper membrane 1-1, a second lower membrane 1-3, and a third upper membrane 1-1, a third lower membrane 1-3, a fourth upper membraneThe second laminated magnetic bead comprises a second upper diaphragm 2-1, a second lower diaphragm 2-3, and a second electrode 2-2 arranged between the second upper diaphragm 2-1 and the second lower diaphragm 2-3, the third laminated magnetic bead comprises a third upper diaphragm 3-1, a third lower diaphragm 3-3, and a third electrode 3-2 arranged between the third upper diaphragm 3-1 and the third lower diaphragm 3-3, the first electrode 1-2, the second electrode 2-2, and the third electrode 3-2 are connected in parallel, the resistance of the metal material of the first electrode 1-2 is a, the resistance of the metal material of the second electrode 2-2 is b, the value range of b ═ γ a, γ is 1-20, the resistance of the metal material of the third electrode 3-2 is c, the value range of (1) to (20).
In this embodiment, the first electrode 1-2, the second electrode 2-2, and the third electrode 3-2 are all aluminum foil electrodes.
In this embodiment, the first electrode 1-2, the second electrode 2-2, and the third electrode 3-2 are made of a molybdenum-based alloy material.
In this embodiment, the
In specific implementation, the resistance of the first electrode, the second electrode and the third electrode after being connected in parallel isTherefore, the rated current of the laminated magnetic bead is improved, and the resistance of the traditional magnetic bead is reduced. If it isThe resistance of the first electrode, the second electrode and the third electrode after being connected in parallel isThe rated current of the laminated magnetic bead is further improved, and the resistance of the traditional magnetic bead is reduced.
When the magnetic beads are applied to a general temperature environment, the first electrode 1-2, the second electrode 2-2 and the third electrode 3-2 are all aluminum foil electrodes.
When the magnetic beads are applied to a high temperature environment, the first electrode 1-2, the second electrode 2-2 and the third electrode 3-2 are all made of molybdenum-based alloy materials.
The above embodiments are only examples of the present invention, and are not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (3)
1. The utility model provides a stromatolite formula magnetic bead for inductance which characterized in that: including three from top to bottom superimposed magnetic bead unit, the magnetic bead unit is first stromatolite magnetic bead, second stromatolite magnetic bead and third stromatolite magnetic bead respectively, first stromatolite magnetic bead includes first last diaphragm (1-1), first diaphragm (1-3) down, and sets up first electrode (1-2) between diaphragm (1-1) and first diaphragm (1-3) down, diaphragm (2-1), diaphragm (2-3) under the second are gone up to second stromatolite magnetic bead includes the second, and set up second electrode (2-2) between diaphragm (2-3) under diaphragm (2-1) and the second on the second, the second is overlapped the magnetic bead and is includedThe tri-stack magnetic bead comprises a third upper diaphragm (3-1), a third lower diaphragm (3-3) and a third electrode (3-2) arranged between the third upper diaphragm (3-1) and the third lower diaphragm (3-3), wherein the first electrode (1-2), the second electrode (2-2) and the third electrode (3-2) are connected in parallel, the resistance of the metal material of the first electrode (1-2) is a, the resistance of the metal material of the second electrode (2-2) is b, the value of b ═ γ a and γ is 20, and the resistance of the metal material of the third electrode (3-2) is c, is 20; the resistance of the first electrode, the second electrode and the third electrode after being connected in parallel isWherein,
2. a stacked magnetic bead for an inductor as claimed in claim 1, wherein: the first electrode (1-2), the second electrode (2-2) and the third electrode (3-2) are all aluminum foil electrodes.
3. A stacked magnetic bead for an inductor as claimed in claim 1, wherein: the first electrode (1-2), the second electrode (2-2) and the third electrode (3-2) are all made of molybdenum-based alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710460253.0A CN107424722B (en) | 2017-06-17 | 2017-06-17 | A kind of inductance laminated type magnetic bead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710460253.0A CN107424722B (en) | 2017-06-17 | 2017-06-17 | A kind of inductance laminated type magnetic bead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107424722A CN107424722A (en) | 2017-12-01 |
| CN107424722B true CN107424722B (en) | 2019-07-26 |
Family
ID=60429622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710460253.0A Active CN107424722B (en) | 2017-06-17 | 2017-06-17 | A kind of inductance laminated type magnetic bead |
Country Status (1)
| Country | Link |
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| CN (1) | CN107424722B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992426A (en) * | 2005-12-27 | 2007-07-04 | 三洋电机株式会社 | Electric circuit device |
| CN201138593Y (en) * | 2008-01-04 | 2008-10-22 | 深圳振华富电子有限公司 | Stacked magnetic bead |
| CN104051126A (en) * | 2014-06-09 | 2014-09-17 | 深圳振华富电子有限公司 | Laminate type magnetic ball |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189678A (en) * | 1997-01-28 | 1998-08-05 | 美磊科技股份有限公司 | A magnetic bead with high current resistance and its manufacturing method |
-
2017
- 2017-06-17 CN CN201710460253.0A patent/CN107424722B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992426A (en) * | 2005-12-27 | 2007-07-04 | 三洋电机株式会社 | Electric circuit device |
| CN201138593Y (en) * | 2008-01-04 | 2008-10-22 | 深圳振华富电子有限公司 | Stacked magnetic bead |
| CN104051126A (en) * | 2014-06-09 | 2014-09-17 | 深圳振华富电子有限公司 | Laminate type magnetic ball |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107424722A (en) | 2017-12-01 |
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Effective date of registration: 20190701 Address after: 724200 Unity New Village, Zhoujiashan Town, Mianxian County, Hanzhong City, Shaanxi Province Applicant after: Hanzhong Dacheng Electronic Technology Co., Ltd. Address before: 726200 Laojun Village, Shangzhen, Danfeng County, Shangluo City, Shaanxi Province (opposite the highway intersection) Applicant before: Danfeng County Xin Wei Electronics Co. Ltd. |
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