CN210325447U - Thin type large-current inductor - Google Patents
Thin type large-current inductor Download PDFInfo
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- CN210325447U CN210325447U CN201920876097.0U CN201920876097U CN210325447U CN 210325447 U CN210325447 U CN 210325447U CN 201920876097 U CN201920876097 U CN 201920876097U CN 210325447 U CN210325447 U CN 210325447U
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- 230000004301 light adaptation Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000003466 welding Methods 0.000 abstract description 9
- 238000011030 bottleneck Methods 0.000 abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 5
- 239000010949 copper Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- 238000010030 laminating Methods 0.000 description 5
- 239000000956 alloy Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 229910000529 magnetic ferrite Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 241000893018 Armeria Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of inductors, and discloses a thin large current inductor, which comprises an electrode copper sheet sleeved on an I-type magnetic core column, an assembled I-type magnetic core and an assembled E-type electrode are combined together, the electrode and the I-type magnetic core are separated by an air gap spacer, the size of an air gap can be adjusted according to needs to realize the desired inductance value, the inductance value range can be up to 1uH, the saturation current can be up to more than 100A, the inductance value can be higher than that of the traditional inductor under the same size, the electrode copper sheet is provided with four pins, wherein the pins of two short sides are effective functional pins, the pins of two long sides are internal connecting pins of the product, the electrode copper sheet is designed to be wound twice, the inductance value is greatly improved, the inductor efficiency is improved, the design can reach the maximum inductance value under the same size, and the bottleneck that the thin inductance value can not be improved is solved, the mechanical strength of the product is increased by welding the welding pads, the magnetic core is prevented from being broken, the assembly is not easy to loosen, and the production efficiency is high.
Description
Technical Field
The utility model relates to an inductor technical field specifically is a slim heavy current inductor.
Background
The traditional high-current inductor is generally realized by using a single-turn copper sheet, the inductance cannot be higher due to the limitation of the number of turns, the saturation current cannot be improved in a certain size, the pin position of a bonding pad is limited, and the applicability is poor.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a slim heavy current inductor solves the problem that can't improve inductance value, has practiced thrift the space, and the application is comparatively nimble, has also optimized the unstable and poor problem of electric antidetonation compressive capacity of inductor simultaneously.
(II) technical scheme
For realize above-mentioned improvement inductance value and practice thrift the space purpose, the utility model provides a following technical scheme: the inductor is including fixed magnetic core, the embedded groove has been seted up on the one side of fixed magnetic core, be equipped with the electrode in the embedded groove, the bottom surface and the embedded groove looks adaptation of electrode, the edge pin of electrode, electrode and pin form a groove, are equipped with the air gap spacer in the inslot, I type magnetic core is installed to the top of air gap spacer.
Preferably, the embedded groove has threely, and three embedded groove is not linked together, the electrode design in the embedded groove is E type electrode, the both sides fixed mounting of electrode has two short pins and long pin, the shape of short pin is the same with long pin, and short pin design is the L type, I type magnetic core divide into upper magnetic core and block magnetic core, the L type top of short pin and long pin is fixed on the block magnetic core, the thickness of upper magnetic core is less than the thickness of short pin and long pin by 0.05-0.2 mm.
Preferably, it has three embedded groove to open on the fixed magnetic core, and three embedded groove is not linked together, electrode design in the embedded groove is E type electrode, it has two closed grooves, every to open on the fixed magnetic core an embedded groove on closed groove and the fixed magnetic core is linked together, the shape looks adaptation of electrode and fixed magnetic core, two short pins of both sides of electrode still fixed mounting, short pin design are the L type, still install the long pin on the electrode, the long pin design is rectangular piece, I type magnetic core divide into upper magnetic core and block magnetic core, the L type top of short pin and long pin is fixed on the block magnetic core, the thickness of upper magnetic core is 0.05-0.2mm less than the thickness of short pin.
Preferably, it has the embedded groove to open on the fixed magnetic core, the embedded groove design is S type groove, electrode design in the embedded groove is S type electrode, still open two closed grooves on the fixed magnetic core, the closed groove is linked together with the embedded groove, the shape looks adaptation in the groove that electrode and embedded groove and closed groove are constituteed, the both sides fixed mounting of electrode has two short pins, and short pin designs to the L type, I type magnetic core divide into upper magnetic core and block magnetic core, the L type top of short pin and long pin is fixed on the block magnetic core, the thickness of upper magnetic core and the little 0.05-0.2mm of thickness of short pin.
Preferably, it has the embedded groove to open on the fixed magnetic core, the embedded groove design is S type groove, the electrode design in the embedded groove is S type electrode, still open two closed grooves on the fixed magnetic core, the closed groove is linked together with the embedded groove, the shape looks adaptation in the groove that electrode and embedded groove and closed groove are constituteed, the both sides fixed mounting of electrode has two short pins, and short pin design is the L type, and the short pin on the electrode is fixed mutually with fixed magnetic core, I type magnetic core is a whole board.
(III) advantageous effects
Compared with the prior art, the utility model provides a slim heavy current inductor possesses following beneficial effect:
1. the thin large-current inductor greatly improves the inductance value and the efficiency of the inductor by utilizing the design of twice winding of the S-shaped or E-shaped electrode copper sheet, and under the same size, the design can achieve the maximum inductance value, thereby solving the bottleneck that the thin inductance value cannot be improved.
2. The thin high-current inductor is simple in assembly process, thinner in thickness, capable of effectively saving occupied space of products, easy to assemble, very reliable in quality and strong in anti-seismic and anti-pressure capacity, and can be completed only by a plurality of working procedures.
3. This slim heavy current inductor utilizes long pin and short pin and pad welding, increases product mechanical strength, avoids the magnetic core to break, and the assembly is difficult not hard up, and production efficiency is high.
4. The pin position of the thin high-current inductor can be flexibly designed, and the requirement of customers on the pin position without a bonding pad is met.
Drawings
Fig. 1 is a front view of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention;
FIG. 3 is a front view of the second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 5 is a three-view front view of the embodiment of the present invention;
FIG. 6 is a schematic diagram of a third structure according to an embodiment of the present invention;
fig. 7 is a front view of the embodiment of the present invention;
fig. 8 is a schematic diagram of a fourth structure according to an embodiment of the present invention.
In the figure: 1 inductor, 2 type I core, 201 upper core, 202 card and core, 3 air gap spacer, 4 electrodes, 5 fixed core, 501 embedded slot, 502 closed slot, 6 short pins, 7 long pins.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
As shown in fig. 1-2, a slim large current inductor, including inductor 1, inductor 1 is including fixed magnetic core 5, fixed magnetic core 5 is a square block, embedded groove 501 has been seted up in the one side of fixed magnetic core 5, embedded groove 501 has threely, and three embedded groove 501 is not linked together, the another side design of fixed magnetic core 5 is for leveling smooth face, and inductor 1 of being convenient for fixes in the place that needs, be equipped with electrode 4 in the embedded groove 501, electrode 4's bottom surface and embedded groove 501 looks adaptation, the electrode design is E type electrode, and electrode 4 utilizes the mould punching press to form, and product laminating roughness can obtain guaranteeing, and electrode laminating area is big, easy assembly, electrode 4 can be ferrite material and alloy material. The used magnetic core and the electrode can be symmetrically used, the shape is simple, the development and production cost is greatly reduced, the universality is high, the electrode 4 is designed by twice wraparound, the inductance value is greatly improved, the efficiency of an inductor is improved, under the same size, the design can reach the maximum inductance value, the bottleneck that the thin inductance value cannot be improved is solved, the mechanical strength of a product is increased by welding the other four welding discs, the breakage of the magnetic core is avoided, the assembly is not easy to loose, the production efficiency is high, the long pins 7 are fixedly arranged on two sides of the electrode 4, the long pins 7 are internal connecting pins of the product, the long pins 7 are L-shaped blocks, the two short pins 6 are fixedly arranged on two sides of the electrode 4, the short pins 6 are effective functional pins, the shapes of the short pins 6 are the same as that of the long pins 7, and a groove is formed above the electrode 4 by the electrode 4, the short pins 6 and the long pins 7, the air gap spacer 3 is arranged in the groove, the size of the air gap on the air gap spacer 3 can be adjusted according to the requirement to realize the desired inductance value, the range of the inductance value can be 1uH, the saturation current can be more than 100A, the inductance value under the same size can be higher than that of the traditional inductor, an I-shaped magnetic core 2 is arranged above the air gap spacer 3, the I-shaped magnetic core 2 is divided into an upper magnetic core 201 and a clamping magnetic core 202, the L-shaped top ends of a short pin 6 and a long pin 7 are fixed on the clamping magnetic core 202 to ensure the stability of an electrode 4, the thickness of the upper magnetic core 201 is 0.1mm smaller than that of the short pin 6 and the long pin 7, and the upper magnetic core is taken as the standoff of a device to ensure the reliability of the paster and is convenient for the installation of the inductor 1, the high-current resistant inductor of the utility model effectively saves the occupied space of the product, can realize the lowest, the assembly is very easy, the quality is very reliable, and the shock resistance and the pressure resistance are strong.
Example two
As shown in fig. 3-4, a thin large current inductor, includes an inductor 1, the inductor 1 includes a fixed magnetic core 5, the fixed magnetic core 5 is a square block, an embedded groove 501 is provided on one side of the fixed magnetic core 5, the embedded grooves 501 are three, and the three embedded grooves 501 are not connected, two closed grooves 502 are further provided on one side of the fixed magnetic core 5 where the embedded groove 501 is provided, the two closed grooves 502 are respectively connected with one embedded groove 501, the closed grooves 502 are used to ensure the sealing performance of the magnetic core when the magnetic core is fixed in the embedded groove 501, the other side of the fixed magnetic core 5 is designed to be a smooth surface, so that the inductor 1 is conveniently fixed in a required place, an electrode 4 is provided in the embedded groove 501, the electrode is designed to be an E-shaped electrode, the electrode 4 is adapted to the embedded groove 501, and the electrode 4 is formed by stamping with a mold, so that the flatness of the product can be, the electrode has a large attaching area and is easy to assemble, and the electrode 4 can be made of ferrite materials or alloy materials. The magnetic core and the electrode can be used symmetrically, the shape is simple, the development and production cost is greatly reduced, the universality is high, the electrode 4 is designed by twice wraparound, the inductance value is greatly improved, the efficiency of an inductor is improved, under the same size, the design can reach the maximum inductance value, the bottleneck that the thin inductance value cannot be improved is solved, the mechanical strength of a product is increased by welding the other four welding discs, the magnetic core is prevented from being broken, the assembly is not easy to loose, the production efficiency is high, the two sides of the electrode 4 are fixedly provided with the long pins 7, the long pins 7 are internal connecting pins of the product, each long pin 7 is connected with two pins of the electrode, the other two sides of the electrode 4 are fixedly provided with the two short pins 6, the short pins 6 are effective functional pins, and the shape of the short pins 6 is a special shape that a transverse plate is fixed on a vertical plate, the electrode 4, the short pin 6 and the long pin 7 form a groove above the electrode 4, an air gap spacer 3 is arranged in the groove, the size of an air gap on the air gap spacer 3 can be adjusted as required to realize a desired inductance value, the range of the inductance value can be 1uH, the saturation current can be more than 100A, the inductance value under the same size can be higher than that of a traditional inductor, an I-shaped magnetic core 2 is arranged above the air gap spacer 3, the I-shaped magnetic core 2 is divided into an upper-layer magnetic core 201 and a clamping magnetic core 202, the L-shaped top ends of the short pin 6 and the long pin 7 are fixed on the clamping magnetic core 202 to ensure the stability of the electrode 4, the thickness of the upper-layer magnetic core 201 is 0.1mm smaller than that of the short pin 6, and the L-shaped top ends are used as a standoff of a device to ensure the reliability of a chip and facilitate the installation of the inductor 1, the height can be 1.5mm at the lowest, the process is simple, the operation can be completed by only a plurality of working procedures, the assembly is very easy, the quality is very reliable, and the shock resistance and the pressure resistance are strong.
EXAMPLE III
As shown in fig. 5-6, a thin large current inductor comprises an inductor 1, wherein the inductor 1 comprises a fixed magnetic core 5, the fixed magnetic core 5 is a square block, one side of the fixed magnetic core 5 is provided with an embedded groove 501, the embedded groove 501 is an S-shaped groove, one side of the fixed magnetic core 5 provided with the embedded groove 501 is further provided with two closed grooves 502, the two closed grooves 502 are communicated with the embedded groove 501, the closed grooves 502 are utilized to ensure the sealing performance of the magnetic core when the embedded groove 501 is fixed, the other side of the fixed magnetic core 5 is designed to be a smooth surface, so that the inductor 1 can be conveniently fixed in a required place, an electrode 4 is arranged in the embedded groove 501, the shape of the electrode 4 is matched with the embedded groove 501, the electrode is designed to be an S-shaped electrode, the electrode 4 is formed by stamping through a die, the product laminating flatness can be ensured, and the electrode laminating area, the electrode 4 can be made of ferrite materials and alloy materials, the used magnetic core and the used electrode can be symmetrically used, the shape is simple, the development and production cost is greatly reduced, the universality is high, the electrode 4 utilizes the design of twice rewinding, the inductance value is greatly improved, the inductor efficiency is improved, under the same size, the design can reach the maximum inductance value, the bottleneck that the thin inductance value cannot be improved is solved, the mechanical strength of a product is increased by welding the other two bonding pads, the breakage of the magnetic core is avoided, the assembly is not easy to loosen, the production efficiency is high, two short pins 6 are fixedly installed at two ends of the S shape of the electrode 4, the short pins 6 are effective functional pins, the short pins 6 are in a special shape that a transverse plate is fixed on a vertical plate, the electrode 4 and the short pins 6 form a groove above the electrode 4, and a spacer 3 is arranged in the groove, the size of the air gap on the air gap spacer 3 can be adjusted according to the needs to realize the desired inductance value, the inductance value range can be up to 1uH, the saturation current can be more than 100A, the inductance value under the same size can be higher than that of the traditional inductor, the I-shaped magnetic core 2 is installed above the air gap spacer 3, the I-shaped magnetic core 2 is divided into an upper magnetic core 201 and a clamping magnetic core 202, the top end of the short pin 6L-shaped is fixed on the clamping magnetic core 202 to ensure the stability of the electrode 4, the thickness of the upper magnetic core 201 is 0.1mm smaller than that of the short pin 6 to ensure the reliability of the patch as the standoff of the device, thereby being convenient for the installation of the inductor 1, the utility model discloses the high-current resistant inductor effectively saves the occupied space of the product, can achieve 1.5mm at the lowest height, has simple process, can be completed only by a few processes, is, the anti-seismic and anti-pressure capability is strong.
Example four
As shown in fig. 7-8, a thin large current inductor comprises an inductor 1, wherein the inductor 1 comprises a fixed magnetic core 5, the fixed magnetic core 5 is a square block, one side of the fixed magnetic core 5 is provided with an embedded groove 501, the embedded groove 501 is an S-shaped groove, one side of the fixed magnetic core 5 provided with the embedded groove 501 is further provided with two closed grooves 502, the two closed grooves 502 are communicated with the embedded groove 501, the closed grooves 502 are utilized to ensure the sealing performance of the magnetic core when the embedded groove 501 is fixed, the other side of the fixed magnetic core 5 is designed to be a smooth surface, so that the inductor 1 can be conveniently fixed in a required place, an electrode 4 is arranged in the embedded groove 501, the shape of the electrode 4 is matched with the embedded groove 501, the electrode is designed to be an S-shaped electrode, the electrode 4 is formed by stamping through a die, the product can be ensured in the laminating flatness, and the electrode, the electrode 4 can be made of ferrite materials and alloy materials, the used magnetic core and the used electrode can be symmetrically used, the shape is simple, the development and production cost is greatly reduced, the universality is high, the electrode 4 utilizes the design of twice rewinding, the inductance value is greatly improved, the inductor efficiency is improved, under the same size, the design can reach the maximum inductance value, the bottleneck that the thin inductance value cannot be improved is solved, the mechanical strength of a product is increased by welding the other two bonding pads, the breakage of the magnetic core is avoided, the assembly is not easy to loosen, the production efficiency is high, two short pins 6 are fixedly arranged at two ends of the S shape of the electrode 4, the short pins 6 are effective functional pins, the short pins 6 are in a special shape that a transverse plate is fixed on a vertical plate, the electrode 4 and the short pins 6 form a groove above the electrode 4, and the magnetic core 5 is fixed in the groove, guarantee electrode 4's stability, electrode 4's top is equipped with air gap spacer 3, can adjust air gap spacer 3 as required and go up the size of air gap and realize wanted inductance value, and 1uH can be accomplished to the inductance value scope, and saturated current can accomplish more than 100A, and the inductance can be than the higher that traditional inductor was done under the same size, I type magnetic core 2 is installed to air gap spacer 3's top, and I type magnetic core 2 is a whole board, guarantees that inductor 1's top surface also is smooth, the installation of inductor 1 of being convenient for, the utility model discloses resistant heavy current inductor effectively saves product occupation space, highly can accomplish 1.5mm at the lowest, and simple process, only need several processes alright accomplish in order to assemble very easily, and the quality is very reliable, and the shock resistance is strong.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A thin high current inductor comprising an inductor (1), characterized in that: inductor (1) is including fixed magnetic core (5), embedded groove (501) have been seted up in the one side of fixed magnetic core (5), be equipped with electrode (4) in embedded groove (501), the bottom surface and embedded groove (501) looks adaptation of electrode (4), the edge pin of electrode (4), electrode (4) and pin form a groove, are equipped with air gap spacer (3) above the groove, I type magnetic core (2) are installed to the top of air gap spacer (3).
2. A low profile high current inductor according to claim 1, wherein: embedded groove (501) have threely, and three embedded groove (501) are not linked together, electrode (4) design in embedded groove (501) is E type electrode, the both sides fixed mounting of electrode (4) has two short pins (6) and two long pins (7), the shape of short pin (6) is the same with long pin (7), and short pin (6) design is the L type, I type magnetic core (2) divide into upper magnetic core (201) and block magnetic core (202), the L type top of short pin (6) and long pin (7) is fixed on block magnetic core (202), the thickness of upper magnetic core (201) is inequality with the thickness of short pin (6) and long pin (7), and the thickness of upper magnetic core (201) is less than 0.05-0.2mm than what short pin (6).
3. A low profile high current inductor according to claim 1, wherein: open on fixed magnetic core (5) has three embedded groove (501), and three embedded groove (501) are not linked together, electrode (4) design in embedded groove (501) is E type electrode, it has two closed groove (502) to open on fixed magnetic core (5), every closed groove (502) is linked together with one embedded groove (501) on fixed magnetic core (5), the shape looks adaptation of electrode (4) and fixed magnetic core (5), the both sides of electrode (4) still fixed mounting have two short pins (6), short pin (6) design is the L type, still install long pin (7) on electrode (4), long pin (7) design is the rectangular piece, I type magnetic core (2) divide into upper magnetic core (201) and block magnetic core (202), the L type top of short pin (6) and long pin (7) is fixed on block magnetic core (202), the thickness of the upper-layer magnetic core (201) is 0.05-0.2mm smaller than that of the short pin (6).
4. A low profile high current inductor according to claim 1, wherein: open on fixed magnetic core (5) and have embedded groove (501), embedded groove (501) design is S type groove, electrode (4) in embedded groove (501) design is S type electrode, still open two closed groove (502) on fixed magnetic core (5), closed groove (502) are linked together with embedded groove (501), the shape looks adaptation in the groove that electrode (4) and embedded groove (501) and closed groove (502) are constituteed, the both sides fixed mounting of electrode (4) has two short pins (6), and short pin (6) design is the L type, I type magnetic core (2) divide into upper magnetic core (201) and block magnetic core (202), the L type top of short pin (6) and long pin (7) is fixed on block magnetic core (202), the thickness of upper magnetic core (201) is less than the thickness of short pin (6) by 0.05-0.2 mm.
5. A low profile high current inductor according to claim 1, wherein: open on fixed magnetic core (5) and have embedded groove (501), embedded groove (501) design is S type groove, electrode (4) in embedded groove (501) design is S type electrode, still open two closed groove (502) on fixed magnetic core (5), closed groove (502) are linked together with embedded groove (501), the shape looks adaptation in the groove that electrode (4) and embedded groove (501) and closed groove (502) constitute, the both sides fixed mounting of electrode (4) has two short pins (6), and short pin (6) design is the L type, and short pin (6) on electrode (4) are fixed mutually with fixed magnetic core (5), I type magnetic core (2) are a whole board.
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| CN201920876097.0U CN210325447U (en) | 2019-06-12 | 2019-06-12 | Thin type large-current inductor |
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| CN201920876097.0U CN210325447U (en) | 2019-06-12 | 2019-06-12 | Thin type large-current inductor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112509783A (en) * | 2020-08-09 | 2021-03-16 | 华为技术有限公司 | Power inductor and preparation method thereof, and system-in-package module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509783A (en) * | 2020-08-09 | 2021-03-16 | 华为技术有限公司 | Power inductor and preparation method thereof, and system-in-package module |
| WO2022033406A1 (en) * | 2020-08-09 | 2022-02-17 | 华为数字能源技术有限公司 | Power inductor and preparation method therefor, and system-in-package module |
| CN112509783B (en) * | 2020-08-09 | 2022-04-12 | 华为数字能源技术有限公司 | Power inductor and preparation method thereof, and system-in-package module |
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