CN111029095A

CN111029095A - Integrated integrated filter inductor

Info

Publication number: CN111029095A
Application number: CN201911367456.0A
Authority: CN
Inventors: 郑小勇; 谌利军; 刘�文; 陈雄飞; 徐云峰
Original assignee: Hangzhou Pujing Electronic Technology Co ltd
Current assignee: Hangzhou Pujing Electronic Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-04-17

Abstract

The invention discloses an integrated filter inductor which comprises a magnetic core and a coil group consisting of a plurality of flat coils, wherein each flat coil is sleeved on the magnetic core, the magnetic core is fixed on a partition plate, a lead of each flat coil penetrates through the partition plate, a bottom plate is arranged below the partition plate, and a copper sheet connected with the lead of one end of each flat coil is arranged between the lower end of the partition plate and the upper end of the bottom plate. The invention saves cost, greatly reduces the finished products of the products, saves the space of the whole power supply, is an independent ferrite in the prior art, has larger volume and larger quantity, is integrated into a whole, and generally reduces the volume of the whole product.

Description

Integrated integrated filter inductor

Technical Field

The invention relates to the technical field of inductor manufacturing, in particular to an integrated filter inductor.

Background

The interference phenomenon generated after the electromagnetic wave and the electronic component act on each other includes two kinds of conduction interference and radiation interference. The requirement of a power supply on EMI is higher and higher, for a high-power supply, the occupied proportion of a common mode inductor and a differential mode inductor in the power supply is higher and higher, the smaller the volume of the power supply required by the power supply market is, the smaller the requirement of the power supply market on the inductor can not be met by the conventional large-volume inductor, and the larger interference exists.

An integrated filter inductor is designed aiming at the problems.

Disclosure of Invention

The invention aims to provide an integrated filter inductor which has the advantages of small size and light interference, and solves the problems that the large-size inductor cannot meet the requirements of the power supply market on the inductor and has larger interference.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an integrated integral type filter inductance, includes the coil assembly that magnetic core, a plurality of flat coil are constituteed, each flat coil all overlaps and establishes on the magnetic core, and the magnetic core is fixed on the baffle, and each flat coil's lead wire all runs through the baffle, the baffle below is provided with the bottom plate, is provided with between baffle lower extreme and the bottom plate upper end and is connected each the copper sheet of flat coil one end lead wire.

Furthermore, the magnetic core is fixed on the partition plate through adhesive plaster, and the partition plate and the bottom plate are fixed through adhesive plaster.

Furthermore, a through hole for welding a lead at one end of the flat coil is formed in the copper sheet.

Further, the coil set comprises a flat coil N1, a flat coil N2, a flat coil N3, a flat coil N4 and a flat coil N5.

Furthermore, the bottom plate is an epoxy glass cloth laminated plate and the grade is FR-4.0.

Furthermore, the partition board is a PCB.

Compared with the prior art, the invention has the beneficial effects that:

1. the cost is saved, the finished product of the product is greatly reduced, the space of the whole power supply is saved, the former ferrite is independent, the size is larger, the quantity is larger, the ferrite is integrated, and the size of the whole product is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a front view of an integrated filter inductor according to the present invention;

fig. 2 is a schematic diagram illustrating an integrated filter inductor according to the present invention;

FIG. 3 is a schematic structural view of a base plate;

FIG. 4 is a schematic structural view of a separator and a copper sheet;

fig. 5 is a schematic diagram of a coil and a core.

In the figure: 11-flat coil, 12-magnetic core, 13-clapboard, 14-bottom plate, 15-copper sheet, 16-lead, 17-gray glue and 18-through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an integrated filter inductor includes a magnetic core 12 and a coil assembly formed by a plurality of flat coils 11, each flat coil 11 is sleeved on the magnetic core 12, the magnetic core 12 is fixed on a partition plate 13, a lead 16 of each flat coil 11 penetrates through the partition plate 13, a bottom plate 14 is arranged below the partition plate 13, and a copper sheet 15 connected with the lead 16 at one end of each flat coil 11 is arranged between the lower end of the partition plate 13 and the upper end of the bottom plate 14.

The magnetic core 12 is fixed on the partition plate 13 through an adhesive 17, and the partition plate 13 and the bottom plate 14 are fixed through an adhesive 17. The coil group parameter table is as follows:

a through hole 18 for welding a lead 16 at one end of the flat coil 11 is formed in the copper sheet 15; the coil group comprises a flat coil N1, a flat coil N2, a flat coil N3, a flat coil N4 and a flat coil N5; the bottom plate 14 is an epoxy glass cloth laminated plate and has the grade of FR-4.0; the partition 13 is a PCB board.

When the winding is used, the contact surface of the magnetic core/the contact surface of the magnetic core and the contact surface of the winding are matched to be flat and not to be staggered, and the type of the gray glue is ECCOBOND500 gray glue.

The invention is not described in detail, but is well known to those skilled in the art.

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

1. An integrated integral type filter inductance which characterized in that: the coil assembly comprises a magnetic core (12) and a plurality of flat coils (11), wherein each flat coil (11) is sleeved on the magnetic core (12), the magnetic core (12) is fixed on a partition plate (13), a lead (16) of each flat coil (11) penetrates through the partition plate (13), a bottom plate (14) is arranged below the partition plate (13), and a copper sheet (15) connected with the lead (16) at one end of each flat coil (11) is arranged between the lower end of the partition plate (13) and the upper end of the bottom plate (14).

2. The integrated filter inductor of claim 1, wherein: the magnetic core (12) is fixedly bonded on the partition plate (13) through the gray glue (17), and the partition plate (13) and the bottom plate (14) are fixedly bonded through the gray glue (17).

3. The integrated filter inductor of claim 1, wherein: the copper sheet (15) is provided with a through hole (18) for welding a lead (16) at one end of the flat coil (11).

4. The integrated filter inductor of claim 1, wherein: the coil group comprises a flat coil N1, a flat coil N2, a flat coil N3, a flat coil N4 and a flat coil N5.

5. The integrated filter inductor of claim 2, wherein: the bottom plate (14) is an epoxy glass cloth laminated plate and is in the grade of FR-4.0.

6. The integrated filter inductor of claim 1, wherein: the partition board (13) adopts a PCB board.