CN219497508U - T-shaped open-circuit magnetic circuit inductor - Google Patents
T-shaped open-circuit magnetic circuit inductor Download PDFInfo
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- CN219497508U CN219497508U CN202320220246.4U CN202320220246U CN219497508U CN 219497508 U CN219497508 U CN 219497508U CN 202320220246 U CN202320220246 U CN 202320220246U CN 219497508 U CN219497508 U CN 219497508U
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Abstract
The utility model discloses a T-shaped open magnetic circuit inductor, which comprises a T-shaped magnetic core, a coil and a bottom plate, wherein the T-shaped magnetic core comprises a magnetic column and a magnetic yoke arranged at the top end of the magnetic column; the coil is sleeved on the magnetic column; the bottom plate is arranged at the bottom end of the magnetic column; the cross section of the magnetic yoke is larger than that of the magnetic pillar, and the dimension of the cross section of the magnetic yoke in any direction is not smaller than that of the cross section of the magnetic pillar in the same direction. The T-shaped open magnetic circuit inductor provided by the utility model has a simple structure and a simple manufacturing process, and because one end of the T-shaped magnetic core is provided with the magnetic yoke of which the cross section is larger than that of the magnetic column and the dimension of any direction of the cross section is not smaller than that of the cross section of the magnetic column in the same direction, the T-shaped open magnetic circuit inductor has a good constraint effect on magnetic lines of the open magnetic circuit, so that the effective magnetic permeability of the T-shaped open magnetic circuit is obviously improved, and the initial inductance of the inductor is obviously improved.
Description
Technical Field
The utility model relates to a T-shaped open magnetic circuit inductor, and belongs to the technical field of inductors.
Background
The inductor is an important device in the field of power electronics, and the rod-shaped open magnetic circuit inductor has excellent anti-saturation property due to open magnetic circuit, and has a simple structure and a simple manufacturing process, so that the inductor is widely applied. However, the rod-shaped magnetic core is not high in effective magnetic permeability due to the open circuit of the magnetic circuit and the magnetic core structure of the rod-shaped magnetic core, and the initial inductance of the inductor is not easily increased.
Disclosure of Invention
The utility model provides a T-shaped open magnetic circuit inductor, which aims to solve the problems that the effective magnetic permeability of a magnetic circuit of a rod-shaped magnetic core is not high and the initial inductance of the inductor is not easy to increase in the background art.
The technical scheme adopted by the utility model is as follows:
the T-shaped open magnetic circuit inductor comprises a T-shaped magnetic core, a coil and a bottom plate, wherein the T-shaped magnetic core comprises a magnetic column and a magnetic yoke arranged at the top end of the magnetic column; the coil is sleeved on the magnetic column; the bottom plate is arranged at the bottom end of the magnetic column; the cross section of the magnetic yoke is larger than that of the magnetic pillar, and the dimension of the cross section of the magnetic yoke in any direction is not smaller than that of the cross section of the magnetic pillar in the same direction.
As one preferable aspect of the utility model, the pins at two ends of the coil vertically penetrate through the bottom plate downwards and extend to the lower part of the bottom plate.
Preferably, an adhesive layer is further arranged between the magnetic column and the bottom plate.
As a preferable mode of the utility model, the thickness of the magnetic yoke is more than or equal to 3mm.
The utility model has the beneficial effects that:
the T-shaped open magnetic circuit inductor has excellent anti-saturation characteristic as the inductor is still an open magnetic circuit, and has a simple structure and a simple manufacturing process, and only one T-shaped magnetic core and one inductance coil are arranged. And because one end of the T-shaped magnetic core is provided with the magnetic yoke of which the cross section is larger than that of the magnetic column and the dimension of any direction of the cross section is not smaller than that of the cross section of the magnetic column in the same direction, the magnetic yoke has a good constraint function on magnetic lines of the open-circuit magnetic circuit, so that the effective magnetic permeability of the T-shaped open-circuit magnetic circuit is obviously improved, and the initial inductance of the inductor is obviously improved.
Drawings
FIG. 1 is a perspective view of a T-shaped open magnetic circuit inductor;
FIG. 2 is a front view of a T-shaped open magnetic circuit inductor;
FIG. 3 is a top view of a T-shaped open magnetic circuit inductor;
FIG. 4 is a front view of a T-shaped magnetic core;
the main reference numerals in the figures have the following meanings:
1. the magnetic core comprises a T-shaped magnetic core, 2 coils, 3, a bottom plate, 4, magnetic columns, 5 and a magnetic yoke.
Detailed Description
The utility model is described in detail below with reference to the drawings and examples.
As shown in fig. 1-4: a T-shaped open magnetic circuit inductor consists of a T-shaped magnetic core 1, a coil 2 and a bottom plate 3; the T-shaped magnetic core 1 consists of a magnetic column 4 with a square or round cross section and the like, and a magnetic yoke 5 with a square or round cross section and the like is bonded at one end of the magnetic column in a middle manner, and the T-shaped magnetic core 1 can be integrally formed; the cross section of the magnetic yoke 5 is larger than that of the magnetic pillar 4, the dimension of the cross section of the magnetic yoke 5 in any direction is not smaller than that of the cross section of the magnetic pillar 4 in the same direction, and the thickness of the magnetic yoke 5 is more than or equal to 3mm; the coil 2 penetrates from the smaller end of the T-shaped magnetic core 1, then the bottom plate 3 is fixed by using adhesive, and the pins of the coil 2 face the smaller end of the T-shaped magnetic core 1, namely, the bottom end of the magnetic column 4.
Examples
The T-shaped open magnetic circuit inductor comprises a magnetic column, a magnetic yoke, a magnetic core and an initial inductance, wherein the magnetic column is a square magnetic core with the height of 32mm and the height of 80mm, the magnetic yoke is a square magnetic core with the height of 64mm and the height of 20mm, the total height of the T-shaped magnetic core is 100mm, the number of turns of a vertically wound flat copper wire is 3 x 10mm, the number of turns is 12, and the initial inductance is 29.5uH, and the inductance is 29.4uH when the initial inductance is 300A.
Comparative example
The rod-shaped open magnetic circuit inductor has a magnetic core of 32 x 32mm square, a height of 100mm, a number of turns of 12 turns of a vertically wound flat copper wire of 3 x 10mm, and an initial inductance of 21.1uH and an inductance of 21uH when 300A is used.
As can be seen from the examples and comparative examples, the initial inductance of the inductor of the T-type open magnetic circuit inductor is significantly improved as compared with the bar-shaped open magnetic circuit inductor.
The foregoing is merely illustrative of the preferred embodiments of this utility model, and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of this utility model, and such variations and modifications are to be regarded as being within the scope of this utility model.
Claims (4)
1. The T-shaped open magnetic circuit inductor is characterized by comprising a T-shaped magnetic core, a coil and a bottom plate, wherein the T-shaped magnetic core comprises a magnetic column and a magnetic yoke arranged at the top end of the magnetic column; the coil is sleeved on the magnetic column; the bottom plate is arranged at the bottom end of the magnetic column; the cross section of the magnetic yoke is larger than that of the magnetic pillar, and the dimension of the cross section of the magnetic yoke in any direction is not smaller than that of the cross section of the magnetic pillar in the same direction.
2. A T-type open magnetic circuit inductor according to claim 1 wherein the legs at the ends of the coil extend vertically downwardly through the bottom plate and under the bottom plate.
3. The T-type open circuit magnetic circuit inductor according to claim 1, wherein an adhesive layer is further provided between the magnetic pillar and the bottom plate.
4. A T-type open magnetic circuit inductor according to claim 1, wherein the yoke has a thickness of 3mm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320220246.4U CN219497508U (en) | 2023-02-15 | 2023-02-15 | T-shaped open-circuit magnetic circuit inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320220246.4U CN219497508U (en) | 2023-02-15 | 2023-02-15 | T-shaped open-circuit magnetic circuit inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219497508U true CN219497508U (en) | 2023-08-08 |
Family
ID=87475657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320220246.4U Active CN219497508U (en) | 2023-02-15 | 2023-02-15 | T-shaped open-circuit magnetic circuit inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219497508U (en) |
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2023
- 2023-02-15 CN CN202320220246.4U patent/CN219497508U/en active Active
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