CN213340026U - High saturation current's compound inductor - Google Patents
High saturation current's compound inductor Download PDFInfo
- Publication number
- CN213340026U CN213340026U CN202021870107.9U CN202021870107U CN213340026U CN 213340026 U CN213340026 U CN 213340026U CN 202021870107 U CN202021870107 U CN 202021870107U CN 213340026 U CN213340026 U CN 213340026U
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- framework
- high saturation
- saturation current
- inductor
- Prior art date
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- Expired - Fee Related
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- 150000001875 compounds Chemical class 0.000 title description 4
- 238000004804 winding Methods 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 229920006332 epoxy adhesive Polymers 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 claims description 3
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 claims description 3
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 230000002860 competitive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
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- Insulating Of Coils (AREA)
Abstract
The utility model provides a high saturation current composite inductor, which comprises a framework, a winding and a magnetic core, wherein the framework is of a patch type structure, and the bottom of the framework is provided with a lead section for being welded with a PCB; a drum-shaped magnetic core is arranged in the center of the framework; the outer edge of the magnetic core is provided with a primary winding and a secondary winding; and 4 wire ends of the primary winding and the secondary winding are respectively welded with 4 lead sections of the BASE at the bottom of the framework. The utility model discloses simple structure through establishing the skeleton into the paster type, and the bottom establish be used for with PCB welded terminal, replace original pin foot and PCB to be connected through, effectively reduce the inductor height.
Description
Technical Field
The utility model relates to an inductor, especially a high saturation current's compound inductor.
Background
An Inductor (Inductor) is a component that can convert electrical energy into magnetic energy for storage. The inductor is similar in structure to a transformer, but has only one winding. The inductor has an inductance that only impedes the change in current. If the inductor is in a state where no current is passing, it will try to block the current from flowing through it when the circuit is on; if the inductor is in a current passing state, the inductor will try to keep the current unchanged when the circuit is opened. Inductors are also known as chokes, reactors, dynamic reactors.
With the competitive incandescence of electronic products, the applicability is very important for each component. In some fields it is often desirable to use a 1: 1, such as coupling inductance in SEPIC topology, transformer in DC/DC converter, and even common mode inductor with special requirement, but the common mode inductor product in the market is high at present, so it is one of the problems that needs to be solved at present to research a low-back type high saturation current composite inductor.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the utility model provides a low back of body type high saturation current's compound inductor.
The technical scheme is as follows: the utility model provides a high saturation current composite inductor, which comprises a framework, a winding and a magnetic core, wherein the framework is of a patch type structure, and the bottom of the framework is provided with a lead section for being welded with a PCB; a drum-shaped magnetic core is arranged in the center of the framework; the outer edge of the magnetic core is provided with a primary winding and a secondary winding; and 4 wire ends of the primary winding and the secondary winding are respectively welded with 4 lead sections of the BASE at the bottom of the framework. The utility model discloses simple structure through establishing the skeleton into the paster type, and the bottom establish be used for with PCB welded terminal, replace original pin foot and PCB to be connected through, effectively reduce the inductor height.
The drum-shaped magnetic core is externally sleeved with a square shielding outer sleeve made of nickel-zinc materials.
The drum-shaped magnetic core and the shielding outer sleeve are bonded into a whole through low-expansion-coefficient epoxy adhesive.
The height of the inductor is less than 5mm, the inductance is 1.5-1000 UH, and the rated current can reach 15A at most.
The drum-shaped magnetic core is made of manganese-zinc ferrite.
And the surface of the magnetic core is coated with an insulating layer and insulated by resin.
Has the advantages that: the utility model provides a pair of high saturation current's composite inductor compares with prior art, possesses following advantage:
1. the utility model has simple structure, and the framework is designed into a patch type, and the bottom of the framework is provided with a terminal for welding with the PCB, so as to replace the original connection with the PCB through a pin, thereby effectively reducing the height of the inductor;
2. the drum-shaped magnetic core and the shielding outer sleeve are bonded into a whole through the low-expansion-coefficient epoxy adhesive, so that the height of the inductor is not increased too much while the bonding effect is ensured;
3. the utility model discloses a spraying insulating layer resin on magnetic core surface effectively guarantees insulating effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the shielding sheath of the present invention;
FIG. 3 is a schematic view of a skeletal structure;
wherein: 1. skeleton, 11 lead segments, 2 shielding overcoat.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Examples
As shown in fig. 1, a high saturation current composite inductor comprises a skeleton 1, a winding and a magnetic core, as shown in fig. 3, the skeleton 1 is of a patch type structure, a lead segment 11 for being welded with a PCB is arranged at the bottom of the skeleton 1, and the length of the lead segment 11 is 2.8-3.2 mm; a drum-shaped magnetic core is arranged in the center of the framework 1, the magnetic core is made of manganese-zinc ferrite, and the surface of the magnetic core is coated with an insulating layer and insulated by resin; the outer edge of the magnetic core is provided with a primary winding and a secondary winding; 4 wire ends of the primary winding and the secondary winding are respectively welded with 4 lead sections 11 of the BASE at the bottom of the framework 1; a square shielding outer sleeve 2 made of nickel-zinc is sleeved outside the drum-shaped magnetic core, as shown in fig. 2, the side length of the square shielding outer sleeve 2 is 15.2-15.8 mm; the drum-shaped magnetic core and the shielding outer sleeve 2 are bonded into a whole through low-expansion-coefficient epoxy adhesive.
The framework 1 is designed to be of a patch type, and the bottom of the framework is provided with a terminal for being welded with a PCB (printed circuit board), so that the original connection with the PCB through a pin is replaced, and the height of the inductor is effectively reduced; the height of the inductor is less than 5mm, the inductance is 1.5-1000 UH, and the rated current can reach 15A at most; the drum-shaped magnetic core and the shielding outer sleeve 2 are bonded into a whole through low-expansion-coefficient epoxy adhesive, so that the height of the inductor is not excessively increased while the bonding effect is ensured.
Claims (6)
1. A high saturation current composite inductor, comprising: the transformer comprises a framework, a winding and a magnetic core, wherein the framework is of a patch type structure, and a lead section for welding with a PCB is arranged at the bottom of the framework; a drum-shaped magnetic core is arranged in the center of the framework; the outer edge of the magnetic core is provided with a primary winding and a secondary winding; and 4 wire ends of the primary winding and the secondary winding are respectively welded with 4 lead sections of the BASE at the bottom of the framework.
2. A high saturation current composite inductor according to claim 1, wherein: the magnetic core is made of manganese-zinc ferrite.
3. A high saturation current composite inductor according to claim 1 or 2, wherein: the drum-shaped magnetic core is externally sleeved with a square shielding outer sleeve made of nickel-zinc materials.
4. A high saturation current composite inductor according to claim 3, wherein: the drum-shaped magnetic core and the shielding outer sleeve are bonded into a whole through low-expansion-coefficient epoxy adhesive.
5. A high saturation current composite inductor according to claim 1, wherein: the height of the inductor is less than 5mm, the inductance is 1.5-1000 UH, and the rated current can reach 15A at most.
6. A high saturation current composite inductor according to claim 1 or 2, wherein: and the surface of the magnetic core is coated with an insulating layer and insulated by resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021870107.9U CN213340026U (en) | 2020-09-01 | 2020-09-01 | High saturation current's compound inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021870107.9U CN213340026U (en) | 2020-09-01 | 2020-09-01 | High saturation current's compound inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213340026U true CN213340026U (en) | 2021-06-01 |
Family
ID=76101421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021870107.9U Expired - Fee Related CN213340026U (en) | 2020-09-01 | 2020-09-01 | High saturation current's compound inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213340026U (en) |
-
2020
- 2020-09-01 CN CN202021870107.9U patent/CN213340026U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210601 |
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| CF01 | Termination of patent right due to non-payment of annual fee |