CN221486281U - Double-layer type inductance structure - Google Patents
Double-layer type inductance structure Download PDFInfo
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- CN221486281U CN221486281U CN202420127878.0U CN202420127878U CN221486281U CN 221486281 U CN221486281 U CN 221486281U CN 202420127878 U CN202420127878 U CN 202420127878U CN 221486281 U CN221486281 U CN 221486281U
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- 239000004020 conductor Substances 0.000 claims abstract description 61
- 239000011162 core material Substances 0.000 claims description 119
- 239000010410 layer Substances 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 8
- 238000007731 hot pressing Methods 0.000 claims description 8
- 238000007747 plating Methods 0.000 claims description 7
- 239000002355 dual-layer Substances 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000009713 electroplating Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- -1 copper alloy Chemical compound 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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- Coils Or Transformers For Communication (AREA)
Abstract
A double-layer inductance structure relates to the technical field of coils and comprises a first core, wherein the first core comprises a first center pillar and a first core body, a part of the first center pillar protrudes out of the first core body to form first square groove parts on two sides with the first core body, and a first groove part is arranged between one end of the first center pillar and the first core body; the second core is coaxially arranged above the first core and has the same structure as the first core; a third core covering the top end of the second core; a first conductor positioned in the first slot portion; the second conductor is positioned in the second groove part in the same structure as the first conductor; the 4Pin design has larger magnetic coupling and low power consumption, and each part is formed by hot press after assembly, so that the volume of the part is reduced, the density is increased, the inductance value is improved, and the inductance value can be higher when a coil manufactured by using a lower DCR is used; can bear high-frequency harsh vibration, has strong electromagnetic interference resistance and low buzzing noise, effectively improves the conversion efficiency of the circuit, reduces the power loss and integrally improves the operation performance of the circuit.
Description
Technical Field
The utility model relates to the technical field of coils, in particular to a double-layer inductance structure.
Background
The coil device generally includes a core and two conductors, the conductors being disposed inside the core, and a region in which no magnetic material is disposed is formed between the two conductors, whereby magnetic coupling between the two conductors can be increased.
The two conductors of the existing coil device are adjacently attached, the magnetic coupling between the conductors is not large enough, the power consumption and the loss are high when 4Pin is adopted, and the circuit conversion efficiency is low.
Disclosure of utility model
The present utility model is directed to a dual-layer inductor structure, which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
A dual layer inductor structure comprising:
The first core comprises a first center column and a first core body, a part of the first center column protrudes out of the first core body to form first groove parts on two sides with the first core body, a first groove part is arranged between one end of the first center column and the first core body, and the depth of the first groove part is smaller than the height of the first core body;
the second core is coaxially arranged above the first core and has the same structure as the first core, and comprises a second center column and a second core body, wherein a part of the second center column protrudes out of the second core body to form second square groove parts on two sides with the second core body, a second groove part is arranged between one end of the second center column and the second core body, and the depth of the second groove part is smaller than the height of the second core body;
The third core is covered at the top end of the second core, the third core is of a plate-shaped structure with protruding blocks, and the protruding blocks and the third core form two-side third-party groove parts;
The first conductor is positioned in the first groove part, the width of the first conductor is smaller than or equal to the depth of the first groove part, the first conductor is provided with a first main body part and two first mounting parts, the two first mounting parts are respectively formed on two sides of the first main body part, and the length of the first mounting part is smaller than or equal to the width of the first square groove part;
The second conductor is identical to the first conductor in structure, the second conductor is located in the second groove part, the width of the second conductor is smaller than or equal to the depth of the second groove part, the second conductor is provided with a second main body part and two second installation parts, the two second installation parts are respectively formed on two sides of the second main body part, and the length of the second installation part is smaller than or equal to the width of the second square groove part.
Preferably, the first conductor is provided with two first outer bending portions bent outward, and the first outer bending portions are interposed between the first main body portion and the first mounting portion.
Preferably, the second conductor is provided with two second outer bent portions bent outward, and the second outer bent portions are interposed between the second main body portion and the second mounting portion.
Preferably, the first, second and third cores are provided with an insulating coating layer.
Preferably, the first conductor and the second conductor are conductor plates with plating layers.
Preferably, the first core, the second core, and the third core are metal-insulating magnetic bodies.
Preferably, the first core, the second core and the third core are combined by pressing through a hot pressing die, and after hot pressing, the volume of the first core, the second core and the third core is reduced, and the density increase inductance value is higher.
Preferably, after the first core, the second core and the third core are hot pressed, the first square groove part, the second square groove part and the third square groove part are filled with the first core, the second core or the third core and the core body material to leak out of the bottom surfaces of the first installation part and the second installation part.
Preferably, the bottom surfaces of the first mounting portion and the second mounting portion are subjected to laser plating to form plating layers.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, the 4Pin design has larger magnetic coupling and low power consumption, the first conductor and the second conductor are respectively and firmly fixed in the first core and the second core, high-frequency harsh vibration can be born, and the vehicle-mounted application is more reliable; after the components are assembled, the components are formed by hot pressing, so that the volume of the components is reduced, the density is increased, the inductance value is improved, and the inductance value can be higher when a coil manufactured by using a lower DCR (direct current collector) is used; irms current is higher, core loss is better, an integrated magnetic shielding structure is adopted, a magnetic circuit is closed, electromagnetic interference resistance is strong, buzzing noise is low, circuit conversion efficiency can be effectively improved, power loss is reduced, and circuit operation performance is integrally improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an exploded view of the present utility model;
FIG. 3 is a top view of a first core of the present utility model;
FIG. 4 is a schematic diagram of the present utility model after hot pressing;
FIG. 5 is a schematic diagram of the laser electroplated coating of the present utility model.
Reference numerals
1. First core, 101, first center pillar, 102, first core, 103, first groove, 104, first square groove, 2, second core, 201, second center pillar, 202, second core, 203, second groove, 204, second square groove, 3, third core, 301, bump, 302, third groove, 4, first conductor, 401, first body, 402, first mounting, 403, first outer bend, 5, second conductor, 501, second body, 502, second mounting, 503, second outer bend, 6.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1-5, the present utility model provides a dual-layer inductor structure, comprising: a first core 1, a second core 2, a third core 3, a first conductor 4 and a second conductor 5; the first conductor 4 and the second conductor 5 function as coils at the same time.
The first core 1 comprises a first center pillar 101 and a first core body 102, wherein a part of the first center pillar 101 protruding out of the first core body 102 and the first core body 102 form two sides of a first groove part 104, a first groove part 103 is arranged between one end of the first center pillar 101 and the first core body 102, and the depth of the first groove part 103 is smaller than the height of the first core body 102;
The second core 2 is coaxially arranged above the first core 1 and has the same structure as the first core 1, and comprises a second middle column 201 and a second core 202, wherein a part of the second middle column 201 protruding out of the second core 202 and the second core 202 form second square groove parts 204 on two sides, a second groove part 203 is arranged between one end of the second middle column 201 and the second core 202, and the depth of the second groove part 203 is smaller than the height of the second core 202;
The third core 3 is covered on the top end of the second core 2, the third core 3 is of a plate-shaped structure with protruding blocks 301, and the protruding blocks 301 and the third core 3 form two side third-party groove parts 302;
The first core 1, the second core 2 and the third core 3 are composed of magnetic bodies, such as metal insulation magnetic bodies, and the like, the first core 1, the second core 2 and the third core 3 are pressed into a whole through a hot pressing die, the volume of the pressed coil structure is reduced, the density is increased, the inductance value is higher, and the coil manufactured by using lower DCR can achieve higher inductance value.
When the first core 1, the second core 2, and the third core 3 are hot pressed, a portion of the first center pillar 101, the second center pillar 201, and the third core 3 together form a center pillar; the first core 102, the second core 202, and the third core 3 together form a core; the first square groove 104, the second square groove 204 and the third square groove 302 are filled with the same core material, flattened and exposed to the bottom surfaces of the first mounting part 402 and the second mounting part 502, and the bottom surfaces of the first mounting part 402 and the second mounting part 502 are subjected to laser plating to form the electroplated layer 6 to play a role in protection.
The first conductor 4 is located in the first groove 103, the width of the first conductor 4 is equal to or less than the depth of the first groove 103, the first conductor 4 is provided with a first main body 401 and two first mounting portions 402, the two first mounting portions 402 are respectively formed on two sides of the first main body 401, the width of the first square groove 104 with the length of the first mounting portion 402 being equal to or less than the length of the first mounting portion 402 is located in the first groove 104, the first conductor 4 is provided with two first outer bending portions 403 which are bent outwards, and the first outer bending portions 403 are arranged between the first main body 401 and the first mounting portions 402.
The second conductor 5 has the same structure as the first conductor 4, the second conductor 5 is located in the second groove 203, the width of the second conductor 5 is smaller than or equal to the depth of the second groove 203, the second conductor 5 is provided with a second main body 501 and two second mounting portions 502, the two second mounting portions 502 are respectively formed on two sides of the second main body 501, the width of the second square groove 204 is smaller than or equal to the length of the second mounting portions 502 and is located in the second square groove 204, the second conductor 5 is provided with two second outer bending portions 503 which are bent outwards, and the second outer bending portions 503 are arranged between the second main body 501 and the second mounting portions 502.
The material of the first conductor 4 and the second conductor 5 may be, for example, a good conductor of copper or a metal such as copper alloy, silver, or nickel, but is not limited thereto. The first conductor 4 and the second conductor 5 may be conductor plates with plating layers, in a U-shaped bent shape. The first mounting portion 402 and the second mounting portion 502 are connected to the circuit board by the plating layer 6, and the two first mounting portions 402 and the two second mounting portions 502 can be soldered (or bonded) to the circuit board by solder (or conductive adhesive). The first core 1, the second core 2, and the third core 3 may be provided with an insulating coating layer made of a resin-based material such as epoxy resin or polyurethane resin for protection.
According to the utility model, the 4Pin design has larger magnetic coupling and low power consumption, the first conductor and the second conductor are respectively and firmly fixed in the first core and the second core, high-frequency harsh vibration can be born, and the vehicle-mounted application is more reliable; after the components are assembled, the components are formed by hot pressing, so that the volume of the components is reduced, the density is increased, the inductance value is improved, and the inductance value can be higher when a coil manufactured by using a lower DCR (direct current collector) is used; irms current is higher, core loss is better, an integrated magnetic shielding structure is adopted, a magnetic circuit is closed, electromagnetic interference resistance is strong, buzzing noise is low, circuit conversion efficiency can be effectively improved, power loss is reduced, and circuit operation performance is integrally improved.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (9)
1. A double-deck inductance structure, its characterized in that: comprising the following steps:
The first core comprises a first center column and a first core body, a part of the first center column protrudes out of the first core body to form first groove parts on two sides with the first core body, a first groove part is arranged between one end of the first center column and the first core body, and the depth of the first groove part is smaller than the height of the first core body;
the second core is coaxially arranged above the first core and has the same structure as the first core, and comprises a second center column and a second core body, wherein a part of the second center column protrudes out of the second core body to form second square groove parts on two sides with the second core body, a second groove part is arranged between one end of the second center column and the second core body, and the depth of the second groove part is smaller than the height of the second core body;
The third core is covered at the top end of the second core, the third core is of a plate-shaped structure with protruding blocks, and the protruding blocks and the third core form two-side third-party groove parts;
The first conductor is positioned in the first groove part, the width of the first conductor is smaller than or equal to the depth of the first groove part, the first conductor is provided with a first main body part and two first mounting parts, the two first mounting parts are respectively formed on two sides of the first main body part, and the length of the first mounting part is smaller than or equal to the width of the first square groove part;
The second conductor is identical to the first conductor in structure, the second conductor is located in the second groove part, the width of the second conductor is smaller than or equal to the depth of the second groove part, the second conductor is provided with a second main body part and two second installation parts, the two second installation parts are respectively formed on two sides of the second main body part, and the length of the second installation part is smaller than or equal to the width of the second square groove part.
2. A double-layer inductor structure according to claim 1, characterized in that: the first conductor is provided with two first outer bending parts which are bent outwards, and the first outer bending parts are arranged between the first main body part and the first mounting part.
3. A double-layer inductor structure according to claim 2, characterized in that: the second conductor is provided with two second outer bent portions bent outward, and the second outer bent portions are interposed between the second main body portion and the second mounting portion.
4. A double-layer inductor structure according to claim 1, characterized in that: the first, second and third cores are provided with an insulating coating layer.
5. A double-layer inductor structure according to claim 1, characterized in that: the first conductor and the second conductor are conductor plates with plating layers.
6. A double-layer inductor structure according to claim 1, characterized in that: the first core, the second core and the third core are all metal-insulated magnetic bodies.
7. A double-layer inductor structure according to claim 1, characterized in that: the first core, the second core and the third core are combined through pressing of the hot pressing die, and after hot pressing, the volume of the first core, the second core and the third core is reduced, and the density increase inductance value is higher.
8. The dual layer inductor structure as claimed in claim 7, wherein: the first, second and third square groove parts are filled with the same core material of the first, second or third cores after the first, second and third cores are hot pressed, and the bottoms of the first and second installation parts are leaked.
9. The dual layer inductor structure as recited in claim 8, wherein: the bottom surfaces of the first installation part and the second installation part are subjected to laser electroplating to form electroplated layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420127878.0U CN221486281U (en) | 2024-01-18 | 2024-01-18 | Double-layer type inductance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420127878.0U CN221486281U (en) | 2024-01-18 | 2024-01-18 | Double-layer type inductance structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221486281U true CN221486281U (en) | 2024-08-06 |
Family
ID=92370911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420127878.0U Active CN221486281U (en) | 2024-01-18 | 2024-01-18 | Double-layer type inductance structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221486281U (en) |
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- 2024-01-18 CN CN202420127878.0U patent/CN221486281U/en active Active
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