CN222421604U - High Current Chip Inductor - Google Patents
High Current Chip Inductor Download PDFInfo
- Publication number
- CN222421604U CN222421604U CN202421079208.2U CN202421079208U CN222421604U CN 222421604 U CN222421604 U CN 222421604U CN 202421079208 U CN202421079208 U CN 202421079208U CN 222421604 U CN222421604 U CN 222421604U
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- magnetic
- coil
- shield
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000605 extraction Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 abstract description 3
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 7
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910018605 Ni—Zn Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910002601 GaN Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 1
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- 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 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- -1 iron-silicon aluminum Chemical compound 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
本实用新型实施例公开了一种大电流贴片电感，该大电流贴片电感包括磁罩、第一磁芯、第二磁芯和线圈，第一磁芯和第二磁芯相对设置，并分别安装于磁罩，线圈套设第一磁芯和第二磁芯，线圈为扁平状，且线圈的各层之间相互粘连，使得线圈的匝与匝，层与层之间的间隙减少，磁芯的有效缠绕窗口面积利用率增加，在相同尺寸条件下，电感的DCR降低，发热减少，直流损耗减少，功率从而得到提升。
The utility model embodiment discloses a high-current chip inductor, which comprises a magnetic cover, a first magnetic core, a second magnetic core and a coil. The first magnetic core and the second magnetic core are arranged opposite to each other and are respectively installed on the magnetic cover. The coil is sleeved with the first magnetic core and the second magnetic core. The coil is flat, and the layers of the coil are adhered to each other, so that the gaps between turns and turns and between layers of the coil are reduced, and the utilization rate of the effective winding window area of the magnetic core is increased. Under the same size conditions, the DCR of the inductor is reduced, the heat is reduced, the DC loss is reduced, and the power is improved.
Description
Technical Field
The utility model relates to the technical field of electronic elements, in particular to a high-current patch inductor.
Background
The switch power supply is the most common power supply of the current electronic equipment, has the advantages of small volume, high efficiency, energy conservation, environmental protection and the like, and is widely applied to various electronic products at present. The power inductor plays a vital role in voltage boosting, voltage reducing, choking, filtering, follow current, voltage stabilizing and the like in the topological structure of the switching power supply circuit, and the electrical performance of the power inductor directly influences the size and output efficiency of the switching power supply.
As the gallium nitride silicon carbide and other semiconductors are gradually applied to various scheme designs, the switching loss and the frequency are greatly improved, so that the requirements on the volume and the efficiency of electronic products are further improved, and the high power density era of the electronic products is also predicted to come.
In the prior art, the coil of the inductor is wound by a round enameled wire, the utilization rate of a magnetic core window is low, and the DCR (direct current impedance) of the inductor is large, so that the problem of serious heat generated when working under high current is caused.
Disclosure of utility model
Based on this, it is necessary to provide a high-current patch inductor, and the coil of the inductor is wound by a round enameled wire in the prior art, so that the utilization rate of a magnetic core window is low, and the DCR (direct current impedance) of the inductor is large, thereby causing the problem of serious heat generated when working under high current.
The utility model provides a high-current patch inductor which comprises a magnetic cover, a first magnetic core, a second magnetic core and a coil, wherein the first magnetic core and the second magnetic core are oppositely arranged and are respectively arranged on the magnetic cover, the coil is sleeved with the first magnetic core and the second magnetic core, the coil is flat, and all layers of the coil are adhered to each other.
In one embodiment, the first magnetic core includes a first center pillar and a first baffle connected to the first center pillar, the second magnetic core includes a second center pillar and a second baffle connected to the second center pillar, and the coil is sleeved on the first center pillar and the second center pillar and placed on the first baffle and the second baffle.
In one embodiment, the magnetic shield is provided with a placement groove for placing the second magnetic core.
In one embodiment, the magnetic shield is further provided with a positioning boss for positioning the second magnetic core.
In one embodiment, the coil comprises a body and a pin connected with the body, and the magnetic shield is further provided with an extraction groove for exposing the pin to the outside of the magnetic shield.
In one embodiment, the high-current patch inductor further comprises a terminal, the magnetic cover is further provided with a mounting groove, the terminal is mounted in the mounting groove and connected with the pin, and the terminal is electrically connected with an external component.
In one embodiment, the terminal includes a positioning buckle, and an electrode connected with the positioning buckle, the positioning buckle is disposed in the mounting groove, the positioning buckle is engaged with the edge of the magnetic cover and is used for positioning the position of the first baffle, and the electrode is engaged with the edge of the second baffle and is used for being electrically connected with an external component.
In one embodiment, the terminal further comprises a connector, and the connector is connected with the pin.
In one embodiment, the connecting buckle is bent to form a connecting cavity, and the pin penetrates through the connecting cavity.
In one embodiment, the first magnetic core may be elliptical, rectangular or polygonal, and the second magnetic core may be elliptical, rectangular or polygonal.
The implementation of the embodiment of the utility model has the following beneficial effects:
The high-current patch inductor has the advantages that the first magnetic core and the second magnetic core of the high-current patch inductor are oppositely arranged and are respectively arranged on the magnetic cover, the coil is sleeved on the first magnetic core and the second magnetic core, the coil is flat, all layers of the coil are mutually adhered, the turn-to-turn of the coil is reduced, gaps between the layers are reduced, the effective winding window area utilization rate of the magnetic core is increased, and under the condition of the same size, DCR of the inductor is reduced, heating is reduced, DC loss is reduced, and power is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
fig. 1 is an isometric view of a high current patch inductor in one embodiment.
Fig. 2 is another angular axis schematic view of the high current patch inductance shown in fig. 1.
Fig. 3 is an exploded schematic view of the high current patch inductor shown in fig. 2.
Fig. 4 is a schematic diagram of a magnetic shield in the high-current patch inductor shown in fig. 3.
Fig. 5 is an enlarged partial schematic view of a portion a of the high-current chip inductor shown in fig. 3.
Reference numerals:
1. The magnetic shield, the placing groove, the positioning boss, the leading-out groove, the mounting groove and the mounting groove are respectively arranged on the magnetic shield, the placing groove and the positioning boss;
2. The first magnetic core, 21, the first center pillar, 22, the first baffle;
3. the second magnetic core, 31, second center pillar, 32, second baffle;
4. coil, 41, body, 42, pin;
5. Terminal, 51, locating button, 52, electrode, 53, connecting button, 531 and connecting cavity.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.
Referring to fig. 1 to 5, a description will be given of a high-current chip inductor provided by the present utility model.
The high-current patch inductor comprises a magnetic cover 1, a first magnetic core 2, a second magnetic core 3 and a coil 4, wherein the first magnetic core 2 and the second magnetic core 3 are oppositely arranged and are respectively arranged on the magnetic cover 1, the coil 4 is sleeved with the first magnetic core 2 and the second magnetic core 3, the coil 4 is flat, and all layers of the coil 4 are adhered to each other.
It can be understood that the first magnetic core 2 and the second magnetic core 3 of this heavy current paster inductance are set up relatively to install in magnetic shield 1 respectively, the coil 4 cover is located first magnetic core 2 and second magnetic core 3, and coil 4 is the platykurtic, and adhesion each other between each layer of coil 4 makes the turn and the turn of coil 4, and the clearance between layer and the layer reduces, and the effective winding window area utilization ratio of magnetic core increases, and under the same size condition, the DCR of inductance reduces, and the heat generation reduces, and direct current loss reduces, and power is thereby promoted.
In addition, the coil 4 is flat, and each layer of the coil 4 is mutually adhered, so that the coil 4 is fixed and not loose, and the audio frequency is not easy to vibrate and make noise.
The coil 4 is flat, layers of the coil 4 are adhered to each other, the AC loss generated by the skin effect in high-frequency application is effectively reduced, the AC loss is reduced, and the product power is further improved.
The coil 4 is flat, all layers of the coil 4 are adhered to each other, the coil 4 is orderly and regularly arranged, the inductance precision can be controlled to be smaller, and the product consistency is improved. And moreover, the coil 4 can realize automatic production, so that the production efficiency is improved, and the production cost is reduced.
For the switching frequency above 1MHz, the magnetic core is made of nickel-zinc ferrite, the magnetic cover 1 is made of nickel-zinc ferrite, the magnetic cover has low magnetic core loss and excellent magnetic shielding effect, and the magnetic cover is suitable for designing low inductance (below 6.8 uH) and is applied to a high-frequency scheme.
Aiming at the switching frequency below 1MHz, the magnetic core is made of nickel-zinc ferrite, the magnetic cover 1 is made of manganese-zinc ferrite, the design of a small and medium inductance value (below 15 uH) is low, the magnetic core loss is low, the magnetic shielding effect is excellent, and compared with the magnetic core made of iron-silicon aluminum, the magnetic cover 1 is made of nickel-zinc ferrite, and the magnetic cover has more excellent anti-saturation capability.
For the switching frequency of about 500KHz, the magnetic core is made of Fe-Si-Al material, the magnetic cover 1 is made of Ni-Zn ferrite, and compared with the magnetic core made of Fe-Ni material, the magnetic cover 1 is made of Ni-Zn ferrite and has relatively more excellent DC bias characteristic.
For the switching frequency of about 500KHz, the magnetic core is made of iron-nickel material, the magnetic cover 1 is made of nickel-zinc ferrite, and compared with the magnetic core made of iron-silicon material, the magnetic cover 1 is made of nickel-zinc ferrite, so that the magnetic cover has lower magnetic core loss and the most outstanding direct current bias characteristic.
For the switching frequency below 200KHz, the magnetic core is made of iron-silicon materials, and the magnetic cover 1 is made of nickel-zinc ferrite, so that the DC bias characteristic and the cost advantage are excellent.
In the present embodiment, the first magnetic core 2 includes a first center leg 21 and a first shield 22 connected to the first center leg 21, the second magnetic core 3 includes a second center leg 31 and a second shield 32 connected to the second center leg 31, and the coil 4 is sleeved on the first center leg 21 and the second center leg 31 and placed on the first shield 22 and the second shield 32. By providing the first magnetic core 2 and the second magnetic core 3, the inductance value can be increased. In implementation, the first magnetic core 2 and the second magnetic core 3 may be both T-shaped magnetic core structures, or the first magnetic core 2 may be T-shaped structures, the second magnetic core 3 may be I-shaped structures, or the first magnetic core 2 may be I-shaped structures, and the second magnetic core 3 may be T-shaped structures. The first magnetic core 2 may be elliptical, rectangular or polygonal, and the second magnetic core 3 may be elliptical, rectangular or polygonal.
In an embodiment, as shown in fig. 3 and 4, the magnetic cover 1 is provided with a placement groove 11, and the placement groove 11 is used for placing the second magnetic core 3. In this way, the second magnetic core 3 is enabled to be mounted.
In this embodiment, the magnetic shield 1 is further provided with a positioning boss 12, and the positioning boss 12 is used for positioning the second magnetic core 3. In this way, the second magnetic core 3 is enabled to be positioned.
In one embodiment, as shown in fig. 3 to 5, the coil 4 includes a body 41 and a pin 42 connected to the body 41, and the magnetic shield 1 is further provided with an extraction groove 13, where the extraction groove 13 is used to expose the pin 42 to the outside of the magnetic shield 1. By providing the lead-out groove 13, the pin 42 can be led out from the lead-out groove 13 so that the pin 42 can be externally connected.
In this embodiment, the high-current patch inductor further includes a terminal 5, the magnetic cover 1 is further provided with a mounting groove 14, the terminal 5 is mounted in the mounting groove 14 and connected with the pin 42, and the terminal 5 is electrically connected with an external component. By providing the mounting groove 14 such that the terminal 5 can be mounted, the terminal 5 is connected with the pin 42 such that it can be electrically connected with an external component, for example, the terminal 5 communicates electrical performance with a PCB pad.
Further, the terminal 5 includes a positioning buckle 51, and an electrode 52 connected to the positioning buckle 51, where the positioning buckle 51 is disposed in the mounting groove 14, the positioning buckle 51 engages with an edge of the magnetic cover 1 and is used for positioning the first baffle 22, and the electrode 52 engages with an edge of the second baffle 32 and is used for electrically connecting with an external component. By providing the positioning buckle 51 and the electrode 52, the positioning buckle 51 can clamp the first baffle 22, and the electrode 52 clamps the second baffle 32, so that the first battery cell and the second battery cell can be mounted on the magnetic cover 1.
Of course, in other embodiments, the positioning buckle 51 is disposed in the mounting groove 14 and abuts against the first baffle 22, and the electrode 52 abuts against the second baffle 32, so that the first battery cell and the second battery cell can be mounted on the magnetic cover 1.
Further, the terminal 5 further includes a connection buckle 53, and the connection buckle 53 is connected to the pin 42. The connector link 53 is soldered to the pin 42 so that the terminal 5 can be connected to the pin 42.
Specifically, the connecting buckle 53 is bent to form a connecting cavity 531, and the pin 42 penetrates the connecting cavity 531. By arranging the connecting cavity 531, the pin 42 can be connected with the connecting buckle 53 more easily, the pin 42 is not easy to separate from the connecting cavity 531, and the stability of the welding process of the pin 42 and the connecting buckle 53 is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.
Claims (10)
1. The utility model provides a heavy current paster inductance, its characterized in that, heavy current paster inductance includes magnetic shield, first magnetic core, second magnetic core and coil, first magnetic core with the second magnetic core sets up relatively, and install respectively in the magnetic shield, the coil cover is established first magnetic core with the second magnetic core, the coil is the platykurtic, just adhesion each other between each layer of coil.
2. The high current patch inductor of claim 1, wherein the first magnetic core comprises a first center leg and a first shield coupled to the first center leg, the second magnetic core comprises a second center leg and a second shield coupled to the second center leg, and the coil is sleeved on the first center leg and the second center leg and disposed on the first shield and the second shield.
3. The high current patch inductor of claim 2, wherein the magnetic shield is provided with a placement slot for placement of the second magnetic core.
4. A high current patch inductor according to claim 3 wherein said magnetic shield is further provided with a positioning boss for positioning said second magnetic core.
5. The high-current chip inductor according to claim 2, wherein the coil comprises a body and a pin connected to the body, and the magnetic shield is further provided with an extraction groove for exposing the pin to the outside of the magnetic shield.
6. The high-current chip inductor according to claim 5, further comprising a terminal, wherein the magnetic shield is further provided with a mounting groove, the terminal is mounted in the mounting groove and connected to the pin, and the terminal is electrically connected to an external component.
7. The high-current chip inductor according to claim 6, wherein the terminal comprises a positioning buckle and an electrode connected with the positioning buckle, the positioning buckle is arranged in the mounting groove, the positioning buckle is clamped with the edge of the magnetic cover and used for positioning the first baffle, and the electrode is clamped with the edge of the second baffle and used for being electrically connected with an external component.
8. The high current patch inductor of claim 7, wherein said terminal further comprises a connector clip, said connector clip being connected to said pin.
9. The high current patch inductor of claim 8, wherein the connector clip is bent to form a connection cavity, and the pin extends through the connection cavity.
10. The high current patch inductor of claim 1, wherein the first core is elliptical, rectangular or polygonal and the second core is elliptical, rectangular or polygonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421079208.2U CN222421604U (en) | 2024-05-17 | 2024-05-17 | High Current Chip Inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421079208.2U CN222421604U (en) | 2024-05-17 | 2024-05-17 | High Current Chip Inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222421604U true CN222421604U (en) | 2025-01-28 |
Family
ID=94344967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421079208.2U Active CN222421604U (en) | 2024-05-17 | 2024-05-17 | High Current Chip Inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222421604U (en) |
-
2024
- 2024-05-17 CN CN202421079208.2U patent/CN222421604U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8416043B2 (en) | Powder core material coupled inductors and associated methods | |
| US20020067234A1 (en) | Compact surface-mountable inductors | |
| TW201324552A (en) | Electrical conductive structure of transform and transform thereof | |
| CN103928218A (en) | Magnetic Device With High Saturation Current And Low Core Loss | |
| JP2001185422A (en) | Induction parts having low height outer shape | |
| JP2951324B1 (en) | Coil device | |
| CN204651134U (en) | Transformer and adapter | |
| CN212136184U (en) | Low-loss high-power common mode inductor | |
| CN222421604U (en) | High Current Chip Inductor | |
| CN111063505A (en) | High-power inductor | |
| KR20220079872A (en) | All-in-one co-fired inductor and manufacturing method therefor | |
| Ouyang et al. | Low profile, low cost, new geometry integrated inductors | |
| CN104051143B (en) | There is the changer of planar primary winding | |
| CN215815453U (en) | Ferrite magnetic shielding patch power inductor | |
| CN221994241U (en) | Compact shielding high voltage resistant coupled inductor | |
| CN211980333U (en) | High-power inductor | |
| CN209980935U (en) | Current transformer | |
| CN222213866U (en) | Compact Shielded Coupled Inductors | |
| CN222952907U (en) | High-current coupling inductor | |
| CN222851238U (en) | High Current Power Inductors | |
| CN221994272U (en) | Compact Shielded Power Inductors | |
| CN111477436A (en) | Novel magnetic shielding unsaturated inductor and production method thereof | |
| CN221040743U (en) | Inductor and electrical device | |
| CN222952920U (en) | High-voltage high-power coupling inductor | |
| CN210778186U (en) | Flat transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |