CN217690745U

CN217690745U - Square horizontal common mode inductor

Info

Publication number: CN217690745U
Application number: CN202220863663.6U
Authority: CN
Inventors: 李健
Original assignee: Guigang Jialong Haijie Electronic Technology Co ltd
Current assignee: Guigang Jialong Haijie Electronic Technology Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-10-28
Anticipated expiration: 2032-04-13

Abstract

The utility model relates to a common mode inductance technical field, specific square horizontal common mode inductance that says so, including base, magnetic core, the magnetic core is square, and square the winding is provided with two sets of flat line winding on the magnetic core, the magnetic core fixed mounting is in on the base, the bottom fixed mounting of base has the PIN foot of being connected with the flat line winding electricity, the middle part fixed mounting of magnetic core has the baffle that is located between two sets of flat line winding; the utility model discloses common mode inductance uses flat line individual layer coiling, compare common mode inductance of ordinary common mode inductance with round wire, to a great extent has improved the wire winding space, use square flat line individual layer coiling to have reduced common mode inductance's volume under the condition of equal power, shared space is less during the installation, can be in the at utmost among switching power supply circuits such as TV set, stereo set, the mutual interference of two coils can be avoided simultaneously, the safety in utilization is better.

Description

Square horizontal common mode inductor

Technical Field

The utility model relates to a common mode inductance technical field, specific square horizontal common mode inductance that says so.

Background

The common mode inductor is also called as a common mode choke coil, and is commonly used in a switching power supply of a computer to filter common mode electromagnetic interference signals. In the board design, the common mode inductor also plays a role in EMI filtering, and is used for inhibiting electromagnetic waves generated by the high-speed signal line from radiating and emitting outwards. The common mode inductor is essentially a bidirectional filter: on one hand, common mode electromagnetic interference on a signal line is filtered, on the other hand, electromagnetic interference which is not emitted outwards is restrained, and normal work of other electronic equipment under the same electromagnetic environment is prevented from being influenced.

The common mode inductor in the existing switching power supply circuit is mainly an inductor with a circular structure, but the circular structure can increase the size of the inductor, improve the distributed capacitance, improve the leakage flux and the electromagnetic interference and reduce the working efficiency of the common mode inductor.

SUMMERY OF THE UTILITY MODEL

Problem to among the prior art, the utility model provides a square horizontal common mode inductance has solved circular structure and can increase the inductance volume, has improved distributed capacitance to improve magnetic leakage flux and electromagnetic interference, reduced common mode inductance's work efficiency's problem.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a square horizontal common mode inductance, includes base, magnetic core, the magnetic core is square, and square it is provided with two sets of flat line winding to coil on the magnetic core, magnetic core fixed mounting in on the base, the bottom fixed mounting of base has a plurality of PIN feet, and is two sets of flat line winding is respectively with a plurality of PIN foot electricity is connected.

Furthermore, a partition plate positioned between the two groups of flat wire windings is fixedly installed in the middle of the magnetic core.

Further, the partition board is an insulating board.

Further, the magnetic core is a high-permeability square ferrite magnetic core.

Furthermore, the flat wire winding is formed by winding a flat wire on the magnetic core in a single-layer winding manner.

Furthermore, four PIN feet are arranged and are respectively wound with the ends of the two groups of flat wire windings and then are fixed by tinning.

Furthermore, four PIN foot respectively fixed mounting in the four corners of base bottom surface, and four one side of PIN foot all is provided with the through wires hole that is located the base.

The utility model has the advantages that:

the utility model discloses common mode inductance uses flat line individual layer coiling, compare common mode inductance of ordinary common mode inductance with round wire, to a great extent has improved the wire winding space, use square flat line individual layer coiling to have reduced common mode inductance's volume under the condition of equal power, shared space is less during the installation, can be in the at utmost among switching power supply circuits such as TV set, stereo set, the mutual interference of two coils can be avoided simultaneously, the safety in utilization is better.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples.

FIG. 1 is a schematic view of the present invention;

fig. 2 is a top view of the present invention;

in the figure: 1. a base; 2. a magnetic core; 3. a flat wire winding; 4. a PIN PIN; 5. a separator.

Detailed Description

In order to make the utility model realize the technical means, creation characteristics, achievement purpose and efficiency are easy to understand and understand, the utility model is further explained by combining the detailed implementation mode.

As shown in fig. 1-2, a square horizontal common mode inductance, including base 1, magnetic core 2 is square, and square 2 last windings of being provided with two sets of flat line winding 3 of magnetic core, 2 fixed mounting of magnetic core in on the base 1, the bottom fixed mounting of base 1 has a plurality of PIN feet 4, and is two sets of flat line winding 3 is respectively with a plurality of 4 electricity of PIN feet are connected.

The middle part of the magnetic core 2 is fixedly provided with a partition plate 5 positioned between the two groups of flat wire windings 3, the partition plate 5 is an insulating plate, and the middle part of the partition plate is separated by the insulating plate to better utilize the winding space and play a role in winding isolation.

The magnetic core 2 is a square ferrite magnetic core with high magnetic conductivity, so that the magnetic conductivity of the magnetic core 2 is higher, and the working efficiency of the inductor is improved.

The flat wire winding 3 is formed by winding a flat wire on the magnetic core 2 in a single-layer winding mode, the temperature rise of the inductor can be effectively reduced by winding the flat wire, the current is large and small in size, the use space is increased, and the working efficiency of the common-mode inductor is improved.

The number of the PIN PINs 4 is four, the PIN PINs 4 are respectively wound with the ends of the two groups of flat wire windings 3 and then are fixed in a tin coating mode, and the four PIN PINs 4 are respectively connected with the four ends of the two groups of flat wire windings 3, so that the two groups of flat wire windings 3 can be conveniently connected into a circuit.

Four PIN foot 4 respectively fixed mounting in the four corners of base 1 bottom surface, when this inductance was installed on switch circuit board, four PIN feet 4 supported mounting respectively on the circuit board to it is more firm to make the inductance installation, and four one side of PIN foot 4 all is provided with the through wires hole that is located on base 1, and the flat wire on the flat wire winding group 3 can pass the through wires hole and be connected with PIN foot 4, thereby makes flat wire need not to walk around base 1's outside limit and is connected with PIN foot 4, makes the wire connection more convenient.

The utility model discloses common mode inductance uses flat wire individual layer coiling flat wire winding 3 on magnetic core 2, compare the common mode inductance of ordinary common mode inductance with round wire, to a great extent has improved the wire winding space, use square flat wire individual layer coiling to reduce common mode inductance's volume under the condition of equal power, shared space is less during the installation, magnetic core 2 adopts square structure simultaneously, cooperation flat wire winding 3 can further reduce the inductance volume, at the TV set, can maximum reduction magnetic leakage flux and avoid electromagnetic interference in switching power supply circuits such as acoustic equipment, can avoid the mutual interference of two coils simultaneously, the safety in utilization is better.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description in the above embodiments and the specification is only for illustrating the principles of the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a square horizontal common mode inductance, includes base (1), magnetic core (2), its characterized in that, magnetic core (2) are square, and square it is provided with two sets of flat line winding (3) to coil on magnetic core (2), magnetic core (2) fixed mounting in on base (1), the bottom fixed mounting of base (1) has a plurality of PIN feet (4), and is two sets of flat line winding (3) are respectively with a plurality of PIN foot (4) electricity is connected.

2. A square horizontal common-mode inductor according to claim 1, characterized in that a partition plate (5) between two groups of flat wire windings (3) is fixedly mounted in the middle of the magnetic core (2).

3. A square horizontal common-mode inductor according to claim 2, characterized in that the partition (5) is an insulating plate.

4. A square horizontal common-mode inductor according to claim 1, characterized in that the core (2) is a high permeability square ferrite core.

5. A square horizontal common-mode inductor according to claim 1, characterized in that the flat wire winding (3) is made by winding flat wire around the magnetic core (2) in a single layer winding.

6. The square horizontal common-mode inductor according to claim 1, wherein four PIN PINs (4) are provided, and the four PIN PINs (4) are respectively wound with the ends of two groups of flat wire windings (3) and then fixed by tinning.

7. The square horizontal common-mode inductor according to claim 6, wherein four PIN PINs (4) are respectively and fixedly mounted at four corners of the bottom surface of the base (1), and one side of each of the four PIN PINs (4) is provided with a threading hole located on the base (1).