CN214753303U - Combined patch large-current inductor - Google Patents
Combined patch large-current inductor Download PDFInfo
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- CN214753303U CN214753303U CN202120045791.5U CN202120045791U CN214753303U CN 214753303 U CN214753303 U CN 214753303U CN 202120045791 U CN202120045791 U CN 202120045791U CN 214753303 U CN214753303 U CN 214753303U
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Abstract
The utility model discloses a merge formula paster heavy current inductance has set up two coils of mutual isolation inside the magnetic core of constituteing by board-shaped magnetic core and two E type magnetic cores to form four electrodes that correspond two coils on board-shaped magnetic core, two inductances of reduction that can furthest are applicable to high density dress, and, through four electrodes and external circuit's different connected mode, the utility model discloses can realize the parallelly connected use of two coils to reduce the inductance height in high-power occasion, reduce the skin effect, reduce the loss power, improve work efficiency, also can realize the series connection use of two coils, with reduce the inductance height in the miniwatt occasion, increase inductance value.
Description
Technical Field
The utility model relates to a paster inductance, specific merge formula paster heavy current inductance that says so.
Background
With the increasing demand for miniaturization and lightness of electronic products. The market of electronic components also tends to be in the development direction of miniaturization, flattening and modularization. Under the condition of product volume compression, a plurality of design schemes are optimized in the early stage of design, for example, the PCB circuit layout adjustment, the switching frequency improvement, the magnetic core component material, the enameled wire shape improvement and the like are achieved, and good results are obtained. However, in the current high-power design scheme, a large amount of PCB space is still occupied by magnetic components, especially in the module design with strict requirements on product volume and height.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a combined chip high-current inductor is provided.
Solve above-mentioned technical problem, the utility model discloses the technical scheme who adopts as follows:
a combined patch high-current inductor comprises a magnetic core and two coils respectively arranged on the magnetic core;
the method is characterized in that:
the magnetic core consists of a plate type magnetic core and a double E type magnetic core; the front surface of the double E-shaped magnetic core is provided with two separated coil mounting grooves, each coil mounting groove comprises an annular winding accommodating cavity and two wire outlet grooves which are respectively communicated with the annular winding accommodating cavities, so that the double E-shaped magnetic core forms two middle columns which are respectively surrounded by the annular winding accommodating cavities; two coils are established respectively and are established two on the center pillar and hold respectively two the intracavity is held in the annular wire winding, the back bonding of plate magnetic core is fixed on the front of two E type magnetic cores (contain two the terminal surface of center pillar) to form the magnetic field return circuit, each two pins of coil are equallyd divide and are drawn forth respectively from two wire outlet grooves that correspond and form the electrode on the plate magnetic core.
The magnetic core is made of magnetic powder core materials, which can be iron silicon, iron silicon aluminum, iron nickel, and manganese zinc ferrite.
Thus, the utility model discloses two coils of mutual isolation have been set up inside the magnetic core of constituteing by board-type magnetic core and two E type magnetic cores to form four electrodes that correspond two coils on the board-type magnetic core, two inductances of reduction that can furthest are applicable to high density subsides dress, and, through four electrodes and external circuit's different connected modes, the utility model discloses can realize the parallelly connected use of two coils, with reduce the inductance height in high-power occasion, reduce skin effect, reduce the loss power, improve work efficiency, also can realize the series connection use of two coils, with reduce the inductance height in the low-power occasion, increase inductance value.
Preferably: the coil adopts a flat coil, but a round enameled wire or a stranded wire can also be adopted.
Preferably: the middle column is a cylinder, and the coil is provided with a cylindrical inner cavity matched with the cylinder; however, the center pillar may be a square cylinder, an elliptical cylinder, or the like, and the coil has a corresponding square cylinder cavity and an elliptical cylinder cavity.
As a preferred embodiment of the present invention: the front surface of the plate-type magnetic core is provided with an electrode groove corresponding to each pin of each coil; the lead-out mode of the lead of the coil with a lead of 180 degrees is as follows: the pins of the coil are firstly led out from the corresponding wire outlet grooves in parallel to the plate-shaped magnetic core so as to form parallel parts of the pins; the pins of the coil are bent towards the plate-type magnetic core by 90 degrees after being led out so as to form bent parts of the pins; and after being bent, the pins of the coil are bent in the same direction for 90 degrees and are attached in the corresponding electrode grooves to form the electrodes. Thereby, the volume of the utility model can be further reduced.
Preferably: the side of plate type magnetic core corresponds each the electrode recess is equipped with a positioning groove rather than the intercommunication, the kink of pin is in the positioning groove who corresponds in order to further reduce the utility model discloses a volume.
Preferably: the two coil mounting grooves of the double E-shaped magnetic core are the same in shape, and the four electrodes are symmetrically arranged on the front face of the plate-shaped magnetic core.
Compared with the prior art, the utility model discloses following beneficial effect has:
first, the utility model discloses two coils of mutual isolation have been set up inside the magnetic core of constituteing by board-type magnetic core and two E type magnetic cores to form four electrodes that correspond two coils on the board-type magnetic core, two inductances of reduction that can furthest are applicable to the high density subsides dress, and, through four electrodes and external circuit's different connected mode, the utility model discloses can realize the parallelly connected use of two coils to reduce the inductance height in high-power occasion, reduce the skin effect, reduce the loss power, improve work efficiency, also can realize the series connection use of two coils, with reduce the inductance height in the low-power occasion, increase inductance value.
Second, the utility model has the advantages of simple structure, simple production process and low assembly cost.
Drawings
The invention will be described in further detail with reference to the following drawings and specific embodiments:
fig. 1 is a schematic structural view of the combined chip large-current inductor of the present invention;
fig. 2 is the structure explosion diagram of the large current inductor of the combined patch of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings to help those skilled in the art to better understand the concept of the present invention, but the scope of the claims of the present invention is not limited to the following embodiments, and all other embodiments obtained without creative work for those skilled in the art will fall within the scope of the present invention without departing from the scope of the present invention.
Example one
As shown in fig. 1 and fig. 2, the present invention discloses a combined patch high current inductor, which comprises a magnetic core and two coils 1 respectively disposed on the magnetic core;
the method is characterized in that:
the magnetic core consists of a plate type magnetic core 2 and a double E type magnetic core 3; the front surface 3a of the double-E type magnetic core 3 is provided with two separated coil mounting grooves, each coil mounting groove comprises an annular winding accommodating cavity 3b and two wire outlet grooves 3c respectively communicated with the annular winding accommodating cavities 3b, so that the double-E type magnetic core 3 forms two middle columns 3-1 respectively surrounded by the annular winding accommodating cavities 3 b; the two coils 1 are respectively sleeved on the two middle columns 3-1 and respectively accommodated in the two annular winding accommodating cavities 3b, the back surfaces 2a of the plate-shaped magnetic cores 2 are fixedly bonded to the front surfaces 3a (including the end surfaces of the two middle columns 3-1) of the double-E-shaped magnetic cores 3 to form magnetic field loops, and two pins 1-1 of each coil 1 are respectively led out from the two corresponding wire outlet grooves 3c to the plate-shaped magnetic cores 2 to form electrodes 1-1-1.
The magnetic core is made of magnetic powder core materials, which can be iron silicon, iron silicon aluminum, iron nickel, and manganese zinc ferrite.
Therefore, the utility model discloses set up two coils 1 of mutual isolation inside the magnetic core of constituteing by board-shaped magnetic core 2 and two E type magnetic cores 3 to form four electrodes 1-1-1 that correspond two coils 1 on board-shaped magnetic core 2, two inductances of reduction that can furthest are applicable to high density dress to the area occupied of PCB board, and, through four electrodes 1-1-1 and external circuit's different connected mode, the utility model discloses can realize two coils 1's parallelly connected use to reduce the inductance height in high-power occasion, reduce the skin effect, reduce the loss power, improve work efficiency, also can realize two coils 1's series connection use, in order to reduce the inductance height in the low-power occasion, increase inductance value.
The above is a basic implementation manner of the first embodiment, and further optimization, improvement and limitation may be performed on the basis of the basic implementation manner:
preferably: the coil 1 is a flat coil, but a round enameled wire or a stranded wire can also be adopted.
Preferably: the middle column 3-1 is a cylinder, and the coil 1 is provided with a cylindrical inner cavity matched with the cylinder; however, the center pillar 3-1 may be a square cylinder, an elliptical cylinder, or the like, and the coil 1 has a corresponding square cylinder cavity and an elliptical cylinder cavity.
Example two
On the basis of the first embodiment, the second embodiment further adopts the following preferred structure:
the front surface 2b of the plate-shaped magnetic core 2 is provided with an electrode groove 2c corresponding to each pin 1-1 of each coil 1; the lead-out mode of the lead 1-1 of the coil 1 adopting 180 degrees lead-out is as follows: a pin 1-1 of the coil 1 is firstly led out from a corresponding wire outlet groove 3c in parallel to the plate-shaped magnetic core 2 to form a parallel part 1-1-3 of the pin 1-1; the lead 1-1 of the coil 1 is bent towards the plate-shaped magnetic core 2 by 90 degrees after being led out so as to form a bent part 1-1-2 of the lead 1-1; and the pins 1-1 of the coil 1 are bent, then bent in the same direction for 90 degrees and attached in the corresponding electrode grooves 2c to form the electrodes 1-1-1. Thereby, the volume of the utility model can be further reduced.
The above is the basic implementation manner of the second embodiment, and further optimization, improvement and limitation can be made on the basis of the basic implementation manner:
preferably: the side of the plate-type magnetic core 2 is provided with a positioning groove 2d communicated with each electrode groove 2c corresponding to each electrode groove, and the bending parts 1-1-2 of the pins 1-1 are positioned in the corresponding positioning grooves 2d, so as to further reduce the volume of the utility model.
Preferably: the two coil mounting grooves of the double E-shaped magnetic core 3 are the same in shape, and the four electrodes 1-1-1 are symmetrically arranged on the front surface 2b of the plate-shaped magnetic core 2.
The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and conventional means in the field, without departing from the basic technical idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.
Claims (6)
1. A combined patch high-current inductor comprises a magnetic core and two coils (1) respectively arranged on the magnetic core;
the method is characterized in that:
the magnetic core consists of a plate-type magnetic core (2) and a double-E-type magnetic core (3); the front surface (3a) of the double-E type magnetic core (3) is provided with two separated coil mounting grooves, each coil mounting groove comprises an annular winding containing cavity (3b) and two wire outlet grooves (3c) which are respectively communicated with the annular winding containing cavities (3b), so that the double-E type magnetic core (3) forms two middle columns (3-1) which are respectively enclosed by the annular winding containing cavities (3 b); the two coils (1) are respectively sleeved on the two middle columns (3-1) and respectively accommodated in the two annular winding accommodating cavities (3b), the back surfaces (2a) of the plate-type magnetic cores (2) are fixedly bonded on the front surfaces (3a) of the double E-type magnetic cores (3), and two pins (1-1) of each coil (1) are respectively led out from the two corresponding wire outlet grooves (3c) to the plate-type magnetic cores (2) to form electrodes (1-1-1).
2. The combined patch high-current inductor according to claim 1, wherein: the coil (1) adopts a flat coil.
3. The combined patch high-current inductor according to claim 1, wherein: the middle column (3-1) is a cylinder, and the coil (1) is provided with a cylindrical inner cavity matched with the cylinder.
4. The combined patch high-current inductor according to any one of claims 1 to 3, wherein: the front surface (2b) of the plate-type magnetic core (2) is provided with an electrode groove (2c) corresponding to each pin (1-1) of each coil (1); the lead-out mode of the pin (1-1) of the coil (1) is as follows: pins (1-1) of the coil (1) are firstly led out from corresponding wire outlet grooves (3c) in parallel to the plate-shaped magnetic core (2) to form parallel parts (1-1-3) of the pins (1-1); the pins (1-1) of the coil (1) are bent towards the plate-shaped magnetic core (2) by 90 degrees after being led out so as to form bent parts (1-1-2) of the pins (1-1); and the pins (1-1) of the coil (1) are bent, then bent in the same direction for 90 degrees and attached in the corresponding electrode grooves (2c) to form the electrodes (1-1-1).
5. The combined patch high-current inductor according to claim 4, wherein: the side surface of the plate-type magnetic core (2) is provided with a positioning groove (2d) communicated with each electrode groove (2c), and the bending part (1-1-2) of the pin (1-1) is positioned in the corresponding positioning groove (2 d).
6. The combined patch high-current inductor according to claim 4, wherein: the two coil mounting grooves of the double E-shaped magnetic core (3) are identical in shape, and the four electrodes (1-1-1) are symmetrically arranged on the front surface (2b) of the plate-shaped magnetic core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120045791.5U CN214753303U (en) | 2021-01-08 | 2021-01-08 | Combined patch large-current inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120045791.5U CN214753303U (en) | 2021-01-08 | 2021-01-08 | Combined patch large-current inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214753303U true CN214753303U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120045791.5U Active CN214753303U (en) | 2021-01-08 | 2021-01-08 | Combined patch large-current inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214753303U (en) |
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2021
- 2021-01-08 CN CN202120045791.5U patent/CN214753303U/en active Active
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Address after: 518000 3401-3405, Building 11, Tian'an Yungu Industrial Park Phase II (Plot 02-08), Gangtou Community, Bantian Street, Longgang District, Shenzhen, Guangdong Patentee after: SHENZHEN CODACA ELECTRONIC Co.,Ltd. Address before: 518000 a, floor 2, building 2, Yongchuang Science Park, science and technology second road, shangxue science and Technology City, Bantian street, Longgang District, Shenzhen, Guangdong Patentee before: SHENZHEN CODACA ELECTRONIC Co.,Ltd. |