CN220121624U - Inductance with low eddy current loss and high reliability - Google Patents
Inductance with low eddy current loss and high reliability Download PDFInfo
- Publication number
- CN220121624U CN220121624U CN202320518233.5U CN202320518233U CN220121624U CN 220121624 U CN220121624 U CN 220121624U CN 202320518233 U CN202320518233 U CN 202320518233U CN 220121624 U CN220121624 U CN 220121624U
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- magnetic core
- center pillar
- winding
- skeleton
- lateral wall
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- 238000004804 winding Methods 0.000 claims abstract description 30
- 239000004593 Epoxy Substances 0.000 claims description 6
- 238000005538 encapsulation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 230000004907 flux Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012084 conversion product Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides an inductance with low eddy current loss and high reliability, comprising: the magnetic core and the winding of dress on the magnetic core, the magnetic core includes the magnetic core frame and sets up the magnetic core center pillar at magnetic core frame middle part, and the outside cover of magnetic core center pillar is equipped with the skeleton of drum structure, and the lateral wall of skeleton is located between the lateral wall of magnetic core frame and the magnetic core center pillar, is equipped with the space between skeleton lateral wall and the magnetic core center pillar, and the winding is closely around in the skeleton outside. The inductance winding has a space of more than 2.5mm with the middle column section through the framework, so that the edge magnetic flux of the air-handling part reduces the cutting winding, thereby reducing the eddy current loss; meanwhile, the winding is separated from the center pillar, so that cooling wind can pass through the center pillar of the magnetic core and the edge of the winding at the same time in air cooling application, the heat dissipation area is increased by more than 50%, and the heat dissipation effect of the inductor is improved.
Description
Technical Field
The utility model relates to the field of electronic component equipment, in particular to an inductor with low eddy current loss and high reliability.
Background
At present, inductors, such as filter inductors, energy storage inductors and the like, are used in power supply products or similar power conversion products. There is a general problem with wire wound inductors in that edge flux cut windings create eddy current losses, and there is currently a segmented-air process, but there is still some eddy current loss that is unavoidable.
Disclosure of Invention
Aiming at the problems in the background technology, the utility model structurally further reduces eddy current loss, improves the efficiency and the reliability of the device, and provides the following scheme: an inductor with low eddy current loss and high reliability, comprising: the magnetic core and the winding of dress on the magnetic core, the magnetic core includes magnetic core frame and sets up the magnetic core center pillar at magnetic core frame middle part, the outside cover of magnetic core center pillar is equipped with the skeleton of drum structure, the lateral wall of skeleton is located between the lateral wall of magnetic core frame and the magnetic core center pillar, be equipped with the space between skeleton lateral wall and the magnetic core center pillar, the winding is closely around in the skeleton outside.
As a preferable scheme of the utility model, the width of the gap between the side wall of the framework and the magnetic core center pillar is not less than 2.5mm, and the gap between the side wall of the framework and the magnetic core center pillar forms an avoidance air space.
As a preferable scheme of the utility model, the magnetic core is arranged above the packaging plate, the magnetic core center pillar is parallel to the packaging plate, the four corners of the packaging plate are provided with leads which are arranged in a penetrating way, and two ends of the winding are respectively connected with two leads.
As a preferred embodiment of the present utility model, the encapsulation plate is made of epoxy plate material.
As a preferred embodiment of the present utility model, the magnetic core is made of a combination of ceramic and magnetic sheets.
As a preferable mode of the utility model, the magnetic core is made by combining an epoxy plate and a magnetic sheet.
As a preferred scheme of the utility model, the winding is tightly wound on the outer side of the framework and then fixed by glue.
As a preferred embodiment of the present utility model, the lead wire is made of copper material.
Compared with the prior art, the utility model provides the inductor with low eddy current loss and high reliability, and has the following beneficial effects:
1. the inductance winding has a space of more than 2.5mm between the skeleton and the middle column section, so that the edge magnetic flux at the position of the inductance winding is reduced to cut the winding, thereby reducing eddy current loss.
2. The magnetic core is vertically arranged on the epoxy plate, so that the use of a plane space is reduced, a part of window height is saved when the magnetic core is applied to a power supply product with power density, and the window utilization rate is improved.
3. The winding is separated from the center post, so that cooling air can pass through the center post of the magnetic core and the edge of the winding at the same time in air cooling application, the heat dissipation area is increased by more than 50%, and the heat dissipation effect of the inductor is improved.
Drawings
Fig. 1 is a front view of an inductor with low eddy current loss and high reliability.
Fig. 2 is a perspective view of an inductor with low eddy current loss and high reliability.
Wherein: 101-a magnetic core frame; 102-a magnetic core center post; 2-avoiding the breath space; 3-winding; 4-skeleton; 5-packaging plate; 6-lead wire.
Description of the embodiments
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
As shown in fig. 1-2, the present utility model provides an inductor with low eddy current loss and high reliability, comprising: the magnetic core and around the winding 3 of dress on the magnetic core, its characterized in that, the magnetic core includes magnetic core frame 101 and sets up the magnetic core center pillar 102 at magnetic core frame 101 middle part, and the outside cover of magnetic core center pillar 102 is equipped with the skeleton 4 of drum structure, and the lateral wall of skeleton 4 is located between magnetic core frame 101's lateral wall and the magnetic core center pillar 102, is equipped with the space between skeleton 4 lateral wall and the magnetic core center pillar 102, and winding 3 closely winds in the skeleton 4 outside, and winding 3 closely winds behind the skeleton 4 outside and fixes through glue. And the width of the gap between the side wall of the framework 4 and the magnetic core center pillar 102 is not less than 2.5mm, and the gap between the side wall of the framework 4 and the magnetic core center pillar 102 forms an avoidance air space 2. The inductance winding has a space of more than 2.5mm between the skeleton and the middle column section, so that the edge magnetic flux at the position of the inductance winding is reduced to cut the winding, thereby reducing eddy current loss; meanwhile, the winding is separated from the center pillar, so that cooling wind can pass through the center pillar of the magnetic core and the edge of the winding at the same time in air cooling application, the heat dissipation area is increased by more than 50%, and the heat dissipation effect of the inductor is improved.
In order to facilitate the fixation of the magnetic core, the utility model also provides a packaging plate 5, the magnetic core is arranged above the packaging plate 5, the magnetic core center post 102 is parallel to the packaging plate 5, leads 501 which are arranged in a penetrating way are arranged on four corners of the packaging plate 5, the leads 501 are made of copper materials, and two ends of the winding 3 are respectively connected with two leads 501. The inductor is integrally and vertically arranged, so that plane space can be saved, a part of window height is saved when the inductor is applied to a power supply product with power density, and the window utilization rate is improved. The package board 5 of the present utility model is made of an epoxy board material.
Magnetic core pretreatment:
the magnetic core of the utility model is ground in a way of segmented breath, usually 2-3 segments of breath, and the combination is realized by combining a ceramic or epoxy plate with a magnetic sheet in the middle.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (2)
1. An inductor with low eddy current loss and high reliability, comprising: the magnetic core and around winding (3) of dress on the magnetic core, its characterized in that, the magnetic core includes magnetic core frame (101) and sets up magnetic core center pillar (102) at magnetic core frame (101) middle part, the outside cover of magnetic core center pillar (102) is equipped with skeleton (4) of drum structure, the lateral wall of skeleton (4) is located between lateral wall and the magnetic core center pillar (102) of magnetic core frame (101), be equipped with the space between skeleton (4) lateral wall and the magnetic core center pillar (102), winding (3) close around in skeleton (4) outside, the space width between lateral wall and the magnetic core center pillar (102) of skeleton (4) is not less than 2.5mm, and the space formation between lateral wall and the magnetic core center pillar (102) of skeleton (4) dodges air space (2), still includes encapsulation board (5), the magnetic core is installed encapsulation board (5) top and magnetic core center pillar (102) and encapsulation board (5) parallel, install lead wire (501) that run through setting up on four corners of encapsulation board (5), winding (3) are equipped with two wherein with two of winding (501) are connected with epoxy board (3) respectively and make magnetic sheet (5) outside through the combination mode, magnetic sheet (4) are made.
2. An inductor with low eddy current loss and high reliability according to claim 1, wherein said lead (501) is made of copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320518233.5U CN220121624U (en) | 2023-03-17 | 2023-03-17 | Inductance with low eddy current loss and high reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320518233.5U CN220121624U (en) | 2023-03-17 | 2023-03-17 | Inductance with low eddy current loss and high reliability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220121624U true CN220121624U (en) | 2023-12-01 |
Family
ID=88887186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320518233.5U Active CN220121624U (en) | 2023-03-17 | 2023-03-17 | Inductance with low eddy current loss and high reliability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220121624U (en) |
-
2023
- 2023-03-17 CN CN202320518233.5U patent/CN220121624U/en active Active
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