CN219267454U

CN219267454U - Novel printed plate type common mode inductor

Info

Publication number: CN219267454U
Application number: CN202223014251.4U
Authority: CN
Inventors: 王利霞; 郭智辉; 王瑛
Original assignee: Luoyang Longsheng Technology Co Ltd
Current assignee: Luoyang Longsheng Technology Co Ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-06-27
Anticipated expiration: 2032-11-14

Abstract

The utility model provides a novel printed board type common mode inductor, wherein a printed board magnetic core hole of a U-shaped magnetic core is formed in a printed board, the number of turns of the common mode inductor is determined, wires are arranged on two sides of the printed board to form annular printed wires, the corresponding U-shaped magnetic core is fixed in the magnetic core hole in the printed board by the printed wires, the printed board magnetic core hole of the U-shaped magnetic core is formed in the printed board, then the number of turns required by the common mode inductor is determined according to circuit design parameters, after the number of turns is determined, the wires are arranged on two sides of the printed board to form the annular printed wires, the direction of the wires is paid attention to the consistency, and the number of turns of an upper group and a lower group is consistent. After the printing line is drawn, the design of the printed board type common mode inductor is completed only by fixing the corresponding U-shaped magnetic core in the magnetic core hole on the printed board, the number of turns of the printing line on the printed board can be determined at will according to the design scheme in the design, and the inductance value of the common mode inductor is set.

Description

Novel printed plate type common mode inductor

Technical Field

The utility model relates to the field of common mode inductances, in particular to a novel printed board type common mode inductance.

Background

In the current various electronic equipment, the defects exist in the using process, firstly, the problem of interference exists in the current electronic equipment, secondly, the welding spots of the common mode inductor drop or the enameled wires are broken due to vibration and other reasons, so that the improvement is made, a novel printed board type common mode inductor is provided, in a general interference filter circuit, the common mode inductor has a good filtering effect on common mode interference on the circuit, the common mode inductor is wound on a magnetic core through an enamelled wire, then is welded on a printed board in a component mode, the common mode inductor generally needs to take reinforcing measures on the printed board, the welding spots of the common mode inductor drop or the enameled wires are prevented from being broken due to vibration and other reasons, and the reliability of the circuit is improved.

Disclosure of Invention

The utility model aims at: aiming at the problems of the prior art, the utility model provides the following technical proposal for realizing the purpose of the utility model: the utility model provides a novel printed plate type common mode inductance, includes the printed plate, set up the printed plate magnetic core hole of U type magnetic core on the printed plate, confirm the number of turns of common mode inductance, walk the line at printed plate both sides, form annular printed wiring, the printed wiring is fixed the magnetic core downthehole of U type magnetic core that corresponds on the printed plate.

As the preferable technical scheme of the application, the printed board is arranged between the upper half magnetic core and the lower half magnetic core.

As the preferred technical scheme of this application, printed plate magnetic core hole offer two and symmetry setting on the printed plate.

As the preferable technical scheme of the application, the printed board magnetic core holes are wound with printed wires in an annular array on the outer surface.

As the preferable technical scheme of the application, one end of the printed line is connected with an input end, and the other end of the printed line is connected with an output end.

As a preferred technical scheme of the application, the number of turns of the printed wiring on the printed board determines the inductance value of the common mode inductance.

As a preferable technical scheme of the application, the 1/2/3/4 wire ends of the printed wires correspond to 1/2/3/4 pins of the common mode inductor.

As the preferable technical scheme of the application, the magnetic core holes of the printed board are arranged in the magnetic core holes of the printed board.

Compared with the prior art, the utility model has the beneficial effects that:

in the scheme of the application:

through in general interference filter circuit, have good filter effect to the common mode interference on the circuit through common mode inductance, common mode inductance is through using enamelled wire coiling on the magnetic core, then welds on the printed plate with the form of components and parts, common mode inductance generally need take reinforcing measure on the printed plate, prevent to drop or the enameled wire fracture of the solder joint of common mode inductance that causes because of reasons such as vibration, improved the reliability of circuit, can effectively solve the common mode inductance damage problem because of vibration causes, strengthened equipment reliability.

Description of the drawings:

fig. 1 is a schematic diagram of a common mode inductance provided herein;

fig. 2 is a front view of a printed board type common mode inductor provided in the present application;

fig. 3 is a top view of a printed board type common mode inductor provided in the present application

Fig. 4 is a diagram of a structure of a printed board type common mode inductor provided in the present application.

The figures indicate:

1. an upper half core; 2. a printed board; 3. a lower half core; 4. a printed board magnetic core hole; 5. printing lines; 6. an input end; 7. and an output terminal.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It is clear that the described embodiment is a specific implementation of the utility model and is not limited to all embodiments.

Thus, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely representative of some embodiments of the utility model. 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, without conflict, the embodiments of the present utility model and features and technical solutions of the embodiments may be combined with each other, and it should be noted that like reference numerals and letters denote like items in the following figures, so once a certain item is defined in one figure, no further definition or explanation is needed in the following figures.

Example 1: referring to fig. 1-4, a novel printed board type common mode inductor comprises a printed board 2, wherein a printed board magnetic core hole 4 of a U-shaped magnetic core is formed in the printed board 2, the number of turns of the common mode inductor is determined, wires are routed on two sides of the printed board 2, annular printed wires 5 are formed, and the corresponding U-shaped magnetic core is fixed in the magnetic core hole in the printed board 2 by the printed wires 5.

The printed board 2 is disposed in the middle of the upper half core 1 and the lower half core 3. The printed board magnetic core holes 4 are formed in the printed board 2 in two symmetrical mode. The outer surface of the printed board magnetic core hole 4 is wound with printed wires 5 in a ring-shaped array. One end of the track 5 is connected with an input end 6 and the other end of the track 5 is connected with an output end 7. The number of turns of the tracks 5 on the printed board 2 determines the inductance value of the common-mode inductance. The 1/2/3/4 of the stubs of the track 5 correspond to the 1/2/3/4 pins of the common mode inductance. A magnetic core hole is arranged in the printed board magnetic core hole 4.

Example 2: the circuit schematic diagram of the common-mode inductor is completed by using two groups of printed wires 5 and adopting a mode of wire feeding in the same direction to surround a magnetic core in a ring shape, and the magnetic core parameters and the number of turns of the printed wires 5 jointly determine the inductance of the common-mode inductor. Fig. 3 shows in detail the implementation manner of the design of the novel printed board 2 common mode inductor, firstly, the printed board magnetic core hole 4 of the U-shaped magnetic core is opened on the printed board 2, then the number of turns required by the common mode inductor is determined according to the circuit design parameters, after the number of turns is determined, the wires are routed on the two sides of the printed board 2 according to the mode shown in the top view of fig. 2, the annular printed wires 5 are formed, the routing direction is consistent, and the number of turns of the upper group and the lower group is consistent. The ends of the 1/2/3/4 tracks 5 in the top view correspond to 1/2/3/4 pins of the common-mode inductance. After the drawing of the printed circuit 5 is completed, the design of the common-mode inductor of the printed circuit board 2 is completed only by fixing the corresponding magnetic core in the magnetic core hole on the printed circuit board 2. The completed effect is shown in the side view in fig. 2 and the design effect diagram in fig. 3, the function of common mode inductance can be realized on the printed board 2, the design scheme is simple, the implementation is easy, the method is easy to understand, and the method can be popularized and applied to more filter circuits.

Working principle: in the using process of the utility model, firstly, a printed board magnetic core hole 4 of a U-shaped magnetic core is formed on a printed board 2, then the number of turns required by a common mode inductance is determined according to circuit design parameters, after the number of turns is determined, the wiring is carried out on two sides of the printed board 2 in a mode shown in a top view of fig. 2, annular printed wires 5 are formed, the wiring direction is consistent, and the number of turns of an upper group and a lower group is consistent. The 1/2/3/4 of the stubs of the tracks 5 in the top view of fig. 2 correspond to 1/2/3/4 of the pins of the common-mode inductance. The circuit schematic diagram of the common-mode inductor is completed by using two groups of printed wires 5 and adopting a mode of wire feeding in the same direction to surround a magnetic core in a ring shape, and the magnetic core parameters and the number of turns of the printed wires 5 jointly determine the inductance of the common-mode inductor. Fig. 3 shows in detail an implementation of the novel printed board 2 common mode inductance design. After the drawing of the printed circuit 5 is completed, the design of the common-mode inductance of the printed circuit board 2 is completed only by fixing the corresponding magnetic core in the magnetic core hole on the printed circuit board 2, the function of the common-mode inductance can be realized on the printed circuit board 2, the design scheme is simple, the implementation is easy, the method is easy to understand, and the method can be popularized and applied to more filter circuits.

The above embodiments are only for illustrating the present utility model and not for limiting the technical solutions described in the present utility model, and although the present utility model has been described in detail in the present specification with reference to the above embodiments, the present utility model is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present utility model; all technical solutions and modifications thereof that do not depart from the spirit and scope of the utility model are intended to be included in the scope of the appended claims.

Claims

1. The utility model provides a novel printed plate type common mode inductance, includes printed plate (2), its characterized in that, printed plate magnetic core hole (4) of U type magnetic core have been seted up on printed plate (2), confirm the number of turns of common mode inductance, walk the line at printed plate (2) both sides, form annular printed line (5), printed line (5) are fixed the magnetic core downthehole at the magnetic core on printed plate (2) with the U type magnetic core that corresponds.

2. A novel printed board type common mode inductor according to claim 1, wherein the printed board (2) is arranged in the middle of the upper half magnetic core (1) and the lower half magnetic core (3).

3. The novel printed board type common mode inductor according to claim 2, wherein the printed board magnetic core holes (4) are formed in the printed board (2) in two symmetrical mode.

4. A novel printed board type common mode inductor according to claim 3, wherein the printed board magnetic core holes (4) are wound with printed wires (5) in a circular array on the outer surface.

5. A novel printed board type common mode inductor according to claim 4, wherein one end of the printed wiring (5) is connected with an input end (6), and the other end of the printed wiring (5) is connected with an output end (7).

6. A novel printed board type common mode inductor according to claim 5, characterized in that the number of turns of the printed wire (5) on the printed board (2) determines the inductance value of the common mode inductor.

7. A novel printed board type common mode inductor according to claim 6, wherein 1/2/3/4 of the stubs of the printed wiring (5) correspond to 1/2/3/4 pins of the common mode inductor.

8. The novel printed board type common mode inductor according to claim 7, wherein the magnetic core holes (4) of the printed board are internally provided with magnetic core holes.